From 51f54b06f9e21f1822c66878bc5d3fb153c3fc45 Mon Sep 17 00:00:00 2001 From: natecain Date: Tue, 6 May 2014 23:30:40 +0200 Subject: [PATCH 1/3] Upgrade codemirror to current master --- .../tiddlywiki/codemirror/codemirroreditor.js | 9 +- .../tiddlywiki/codemirror/files/codemirror.js | 5944 ------------- .../codemirror/files/tiddlywiki.files | 54 - .../addon => lib/addon/dialog}/dialog.css | 0 .../addon => lib/addon/dialog}/dialog.js | 13 +- .../lib/addon/edit/matchbrackets.js | 117 + .../addon/search}/searchcursor.js | 95 +- .../codemirror/{files => lib}/codemirror.css | 54 +- .../tiddlywiki/codemirror/lib/codemirror.js | 7587 +++++++++++++++++ .../codemirror/{files => lib}/keymap/emacs.js | 38 +- .../codemirror/{files => lib}/keymap/extra.js | 0 .../codemirror/lib/keymap/sublime.js | 517 ++ .../codemirror/{files => lib}/keymap/vim.js | 1357 ++- .../lib/mode/javascript/javascript.js | 660 ++ .../codemirror/lib/tiddlywiki.files | 75 + 15 files changed, 10035 insertions(+), 6485 deletions(-) delete mode 100644 plugins/tiddlywiki/codemirror/files/codemirror.js delete mode 100644 plugins/tiddlywiki/codemirror/files/tiddlywiki.files rename plugins/tiddlywiki/codemirror/{files/addon => lib/addon/dialog}/dialog.css (100%) rename plugins/tiddlywiki/codemirror/{files/addon => lib/addon/dialog}/dialog.js (90%) create mode 100644 plugins/tiddlywiki/codemirror/lib/addon/edit/matchbrackets.js rename plugins/tiddlywiki/codemirror/{files/addon => lib/addon/search}/searchcursor.js (57%) rename plugins/tiddlywiki/codemirror/{files => lib}/codemirror.css (89%) create mode 100644 plugins/tiddlywiki/codemirror/lib/codemirror.js rename plugins/tiddlywiki/codemirror/{files => lib}/keymap/emacs.js (93%) rename plugins/tiddlywiki/codemirror/{files => lib}/keymap/extra.js (100%) create mode 100644 plugins/tiddlywiki/codemirror/lib/keymap/sublime.js rename plugins/tiddlywiki/codemirror/{files => lib}/keymap/vim.js (75%) create mode 100644 plugins/tiddlywiki/codemirror/lib/mode/javascript/javascript.js create mode 100644 plugins/tiddlywiki/codemirror/lib/tiddlywiki.files diff --git a/plugins/tiddlywiki/codemirror/codemirroreditor.js b/plugins/tiddlywiki/codemirror/codemirroreditor.js index 6477b893a..494c49d65 100644 --- a/plugins/tiddlywiki/codemirror/codemirroreditor.js +++ b/plugins/tiddlywiki/codemirror/codemirroreditor.js @@ -17,8 +17,8 @@ var CODEMIRROR_OPTIONS = "$:/config/CodeMirror", configOptions; e.g. to allow vim key bindings { "require": [ - "$:/plugins/tiddlywiki/codemirror/addon/dialog.js", - "$:/plugins/tiddlywiki/codemirror/addon/searchcursor.js", + "$:/plugins/tiddlywiki/codemirror/addon/dialog/dialog.js", + "$:/plugins/tiddlywiki/codemirror/addon/search/searchcursor.js", "$:/plugins/tiddlywiki/codemirror/keymap/vim.js" ], "configuration": { @@ -31,7 +31,7 @@ e.g. to allow vim key bindings var EditTextWidget = require("$:/core/modules/widgets/edit-text.js")["edit-text"]; if($tw.browser) { - require("$:/plugins/tiddlywiki/codemirror/codemirror.js"); + window.CodeMirror = require("$:/plugins/tiddlywiki/codemirror/lib/codemirror.js"); configOptions = $tw.wiki.getTiddlerData(CODEMIRROR_OPTIONS,{}); @@ -59,12 +59,11 @@ EditTextWidget.prototype.postRender = function() { lineWrapping: true, lineNumbers: true }; - if($tw.browser && window.CodeMirror && this.editTag === "textarea") { if(EditTextWidget.configuration) { for (cv in EditTextWidget.configuration) { cm_opts[cv] = EditTextWidget.configuration[cv]; } } - cm = CodeMirror.fromTextArea(this.domNodes[0], cm_opts); + cm = window.CodeMirror.fromTextArea(this.domNodes[0], cm_opts); cm.on("change",function() { self.saveChanges(cm.getValue()); }); diff --git a/plugins/tiddlywiki/codemirror/files/codemirror.js b/plugins/tiddlywiki/codemirror/files/codemirror.js deleted file mode 100644 index f8b2af58a..000000000 --- a/plugins/tiddlywiki/codemirror/files/codemirror.js +++ /dev/null @@ -1,5944 +0,0 @@ -// CodeMirror version 3.20 -// -// CodeMirror is the only global var we claim -window.CodeMirror = (function() { - "use strict"; - - // BROWSER SNIFFING - - // Crude, but necessary to handle a number of hard-to-feature-detect - // bugs and behavior differences. - var gecko = /gecko\/\d/i.test(navigator.userAgent); - // IE11 currently doesn't count as 'ie', since it has almost none of - // the same bugs as earlier versions. Use ie_gt10 to handle - // incompatibilities in that version. - var ie = /MSIE \d/.test(navigator.userAgent); - var ie_lt8 = ie && (document.documentMode == null || document.documentMode < 8); - var ie_lt9 = ie && (document.documentMode == null || document.documentMode < 9); - var ie_gt10 = /Trident\/([7-9]|\d{2,})\./.test(navigator.userAgent); - var webkit = /WebKit\//.test(navigator.userAgent); - var qtwebkit = webkit && /Qt\/\d+\.\d+/.test(navigator.userAgent); - var chrome = /Chrome\//.test(navigator.userAgent); - var opera = /Opera\//.test(navigator.userAgent); - var safari = /Apple Computer/.test(navigator.vendor); - var khtml = /KHTML\//.test(navigator.userAgent); - var mac_geLion = /Mac OS X 1\d\D([7-9]|\d\d)\D/.test(navigator.userAgent); - var mac_geMountainLion = /Mac OS X 1\d\D([8-9]|\d\d)\D/.test(navigator.userAgent); - var phantom = /PhantomJS/.test(navigator.userAgent); - - var ios = /AppleWebKit/.test(navigator.userAgent) && /Mobile\/\w+/.test(navigator.userAgent); - // This is woefully incomplete. Suggestions for alternative methods welcome. - var mobile = ios || /Android|webOS|BlackBerry|Opera Mini|Opera Mobi|IEMobile/i.test(navigator.userAgent); - var mac = ios || /Mac/.test(navigator.platform); - var windows = /win/i.test(navigator.platform); - - var opera_version = opera && navigator.userAgent.match(/Version\/(\d*\.\d*)/); - if (opera_version) opera_version = Number(opera_version[1]); - if (opera_version && opera_version >= 15) { opera = false; webkit = true; } - // Some browsers use the wrong event properties to signal cmd/ctrl on OS X - var flipCtrlCmd = mac && (qtwebkit || opera && (opera_version == null || opera_version < 12.11)); - var captureMiddleClick = gecko || (ie && !ie_lt9); - - // Optimize some code when these features are not used - var sawReadOnlySpans = false, sawCollapsedSpans = false; - - // CONSTRUCTOR - - function CodeMirror(place, options) { - if (!(this instanceof CodeMirror)) return new CodeMirror(place, options); - - this.options = options = options || {}; - // Determine effective options based on given values and defaults. - for (var opt in defaults) if (!options.hasOwnProperty(opt) && defaults.hasOwnProperty(opt)) - options[opt] = defaults[opt]; - setGuttersForLineNumbers(options); - - var docStart = typeof options.value == "string" ? 0 : options.value.first; - var display = this.display = makeDisplay(place, docStart); - display.wrapper.CodeMirror = this; - updateGutters(this); - if (options.autofocus && !mobile) focusInput(this); - - this.state = {keyMaps: [], - overlays: [], - modeGen: 0, - overwrite: false, focused: false, - suppressEdits: false, pasteIncoming: false, - draggingText: false, - highlight: new Delayed()}; - - themeChanged(this); - if (options.lineWrapping) - this.display.wrapper.className += " CodeMirror-wrap"; - - var doc = options.value; - if (typeof doc == "string") doc = new Doc(options.value, options.mode); - operation(this, attachDoc)(this, doc); - - // Override magic textarea content restore that IE sometimes does - // on our hidden textarea on reload - if (ie) setTimeout(bind(resetInput, this, true), 20); - - registerEventHandlers(this); - // IE throws unspecified error in certain cases, when - // trying to access activeElement before onload - var hasFocus; try { hasFocus = (document.activeElement == display.input); } catch(e) { } - if (hasFocus || (options.autofocus && !mobile)) setTimeout(bind(onFocus, this), 20); - else onBlur(this); - - operation(this, function() { - for (var opt in optionHandlers) - if (optionHandlers.propertyIsEnumerable(opt)) - optionHandlers[opt](this, options[opt], Init); - for (var i = 0; i < initHooks.length; ++i) initHooks[i](this); - })(); - } - - // DISPLAY CONSTRUCTOR - - function makeDisplay(place, docStart) { - var d = {}; - - var input = d.input = elt("textarea", null, null, "position: absolute; padding: 0; width: 1px; height: 1em; outline: none; font-size: 4px;"); - if (webkit) input.style.width = "1000px"; - else input.setAttribute("wrap", "off"); - // if border: 0; -- iOS fails to open keyboard (issue #1287) - if (ios) input.style.border = "1px solid black"; - input.setAttribute("autocorrect", "off"); input.setAttribute("autocapitalize", "off"); input.setAttribute("spellcheck", "false"); - - // Wraps and hides input textarea - d.inputDiv = elt("div", [input], null, "overflow: hidden; position: relative; width: 3px; height: 0px;"); - // The actual fake scrollbars. - d.scrollbarH = elt("div", [elt("div", null, null, "height: 1px")], "CodeMirror-hscrollbar"); - d.scrollbarV = elt("div", [elt("div", null, null, "width: 1px")], "CodeMirror-vscrollbar"); - d.scrollbarFiller = elt("div", null, "CodeMirror-scrollbar-filler"); - d.gutterFiller = elt("div", null, "CodeMirror-gutter-filler"); - // DIVs containing the selection and the actual code - d.lineDiv = elt("div", null, "CodeMirror-code"); - d.selectionDiv = elt("div", null, null, "position: relative; z-index: 1"); - // Blinky cursor, and element used to ensure cursor fits at the end of a line - d.cursor = elt("div", "\u00a0", "CodeMirror-cursor"); - // Secondary cursor, shown when on a 'jump' in bi-directional text - d.otherCursor = elt("div", "\u00a0", "CodeMirror-cursor CodeMirror-secondarycursor"); - // Used to measure text size - d.measure = elt("div", null, "CodeMirror-measure"); - // Wraps everything that needs to exist inside the vertically-padded coordinate system - d.lineSpace = elt("div", [d.measure, d.selectionDiv, d.lineDiv, d.cursor, d.otherCursor], - null, "position: relative; outline: none"); - // Moved around its parent to cover visible view - d.mover = elt("div", [elt("div", [d.lineSpace], "CodeMirror-lines")], null, "position: relative"); - // Set to the height of the text, causes scrolling - d.sizer = elt("div", [d.mover], "CodeMirror-sizer"); - // D is needed because behavior of elts with overflow: auto and padding is inconsistent across browsers - d.heightForcer = elt("div", null, null, "position: absolute; height: " + scrollerCutOff + "px; width: 1px;"); - // Will contain the gutters, if any - d.gutters = elt("div", null, "CodeMirror-gutters"); - d.lineGutter = null; - // Provides scrolling - d.scroller = elt("div", [d.sizer, d.heightForcer, d.gutters], "CodeMirror-scroll"); - d.scroller.setAttribute("tabIndex", "-1"); - // The element in which the editor lives. - d.wrapper = elt("div", [d.inputDiv, d.scrollbarH, d.scrollbarV, - d.scrollbarFiller, d.gutterFiller, d.scroller], "CodeMirror"); - // Work around IE7 z-index bug - if (ie_lt8) { d.gutters.style.zIndex = -1; d.scroller.style.paddingRight = 0; } - if (place.appendChild) place.appendChild(d.wrapper); else place(d.wrapper); - - // Needed to hide big blue blinking cursor on Mobile Safari - if (ios) input.style.width = "0px"; - if (!webkit) d.scroller.draggable = true; - // Needed to handle Tab key in KHTML - if (khtml) { d.inputDiv.style.height = "1px"; d.inputDiv.style.position = "absolute"; } - // Need to set a minimum width to see the scrollbar on IE7 (but must not set it on IE8). - else if (ie_lt8) d.scrollbarH.style.minWidth = d.scrollbarV.style.minWidth = "18px"; - - // Current visible range (may be bigger than the view window). - d.viewOffset = d.lastSizeC = 0; - d.showingFrom = d.showingTo = docStart; - - // Used to only resize the line number gutter when necessary (when - // the amount of lines crosses a boundary that makes its width change) - d.lineNumWidth = d.lineNumInnerWidth = d.lineNumChars = null; - // See readInput and resetInput - d.prevInput = ""; - // Set to true when a non-horizontal-scrolling widget is added. As - // an optimization, widget aligning is skipped when d is false. - d.alignWidgets = false; - // Flag that indicates whether we currently expect input to appear - // (after some event like 'keypress' or 'input') and are polling - // intensively. - d.pollingFast = false; - // Self-resetting timeout for the poller - d.poll = new Delayed(); - - d.cachedCharWidth = d.cachedTextHeight = null; - d.measureLineCache = []; - d.measureLineCachePos = 0; - - // Tracks when resetInput has punted to just putting a short - // string instead of the (large) selection. - d.inaccurateSelection = false; - - // Tracks the maximum line length so that the horizontal scrollbar - // can be kept static when scrolling. - d.maxLine = null; - d.maxLineLength = 0; - d.maxLineChanged = false; - - // Used for measuring wheel scrolling granularity - d.wheelDX = d.wheelDY = d.wheelStartX = d.wheelStartY = null; - - return d; - } - - // STATE UPDATES - - // Used to get the editor into a consistent state again when options change. - - function loadMode(cm) { - cm.doc.mode = CodeMirror.getMode(cm.options, cm.doc.modeOption); - cm.doc.iter(function(line) { - if (line.stateAfter) line.stateAfter = null; - if (line.styles) line.styles = null; - }); - cm.doc.frontier = cm.doc.first; - startWorker(cm, 100); - cm.state.modeGen++; - if (cm.curOp) regChange(cm); - } - - function wrappingChanged(cm) { - if (cm.options.lineWrapping) { - cm.display.wrapper.className += " CodeMirror-wrap"; - cm.display.sizer.style.minWidth = ""; - } else { - cm.display.wrapper.className = cm.display.wrapper.className.replace(" CodeMirror-wrap", ""); - computeMaxLength(cm); - } - estimateLineHeights(cm); - regChange(cm); - clearCaches(cm); - setTimeout(function(){updateScrollbars(cm);}, 100); - } - - function estimateHeight(cm) { - var th = textHeight(cm.display), wrapping = cm.options.lineWrapping; - var perLine = wrapping && Math.max(5, cm.display.scroller.clientWidth / charWidth(cm.display) - 3); - return function(line) { - if (lineIsHidden(cm.doc, line)) - return 0; - else if (wrapping) - return (Math.ceil(line.text.length / perLine) || 1) * th; - else - return th; - }; - } - - function estimateLineHeights(cm) { - var doc = cm.doc, est = estimateHeight(cm); - doc.iter(function(line) { - var estHeight = est(line); - if (estHeight != line.height) updateLineHeight(line, estHeight); - }); - } - - function keyMapChanged(cm) { - var map = keyMap[cm.options.keyMap], style = map.style; - cm.display.wrapper.className = cm.display.wrapper.className.replace(/\s*cm-keymap-\S+/g, "") + - (style ? " cm-keymap-" + style : ""); - cm.state.disableInput = map.disableInput; - } - - function themeChanged(cm) { - cm.display.wrapper.className = cm.display.wrapper.className.replace(/\s*cm-s-\S+/g, "") + - cm.options.theme.replace(/(^|\s)\s*/g, " cm-s-"); - clearCaches(cm); - } - - function guttersChanged(cm) { - updateGutters(cm); - regChange(cm); - setTimeout(function(){alignHorizontally(cm);}, 20); - } - - function updateGutters(cm) { - var gutters = cm.display.gutters, specs = cm.options.gutters; - removeChildren(gutters); - for (var i = 0; i < specs.length; ++i) { - var gutterClass = specs[i]; - var gElt = gutters.appendChild(elt("div", null, "CodeMirror-gutter " + gutterClass)); - if (gutterClass == "CodeMirror-linenumbers") { - cm.display.lineGutter = gElt; - gElt.style.width = (cm.display.lineNumWidth || 1) + "px"; - } - } - gutters.style.display = i ? "" : "none"; - } - - function lineLength(doc, line) { - if (line.height == 0) return 0; - var len = line.text.length, merged, cur = line; - while (merged = collapsedSpanAtStart(cur)) { - var found = merged.find(); - cur = getLine(doc, found.from.line); - len += found.from.ch - found.to.ch; - } - cur = line; - while (merged = collapsedSpanAtEnd(cur)) { - var found = merged.find(); - len -= cur.text.length - found.from.ch; - cur = getLine(doc, found.to.line); - len += cur.text.length - found.to.ch; - } - return len; - } - - function computeMaxLength(cm) { - var d = cm.display, doc = cm.doc; - d.maxLine = getLine(doc, doc.first); - d.maxLineLength = lineLength(doc, d.maxLine); - d.maxLineChanged = true; - doc.iter(function(line) { - var len = lineLength(doc, line); - if (len > d.maxLineLength) { - d.maxLineLength = len; - d.maxLine = line; - } - }); - } - - // Make sure the gutters options contains the element - // "CodeMirror-linenumbers" when the lineNumbers option is true. - function setGuttersForLineNumbers(options) { - var found = indexOf(options.gutters, "CodeMirror-linenumbers"); - if (found == -1 && options.lineNumbers) { - options.gutters = options.gutters.concat(["CodeMirror-linenumbers"]); - } else if (found > -1 && !options.lineNumbers) { - options.gutters = options.gutters.slice(0); - options.gutters.splice(found, 1); - } - } - - // SCROLLBARS - - // Re-synchronize the fake scrollbars with the actual size of the - // content. Optionally force a scrollTop. - function updateScrollbars(cm) { - var d = cm.display, docHeight = cm.doc.height; - var totalHeight = docHeight + paddingVert(d); - d.sizer.style.minHeight = d.heightForcer.style.top = totalHeight + "px"; - d.gutters.style.height = Math.max(totalHeight, d.scroller.clientHeight - scrollerCutOff) + "px"; - var scrollHeight = Math.max(totalHeight, d.scroller.scrollHeight); - var needsH = d.scroller.scrollWidth > (d.scroller.clientWidth + 1); - var needsV = scrollHeight > (d.scroller.clientHeight + 1); - if (needsV) { - d.scrollbarV.style.display = "block"; - d.scrollbarV.style.bottom = needsH ? scrollbarWidth(d.measure) + "px" : "0"; - d.scrollbarV.firstChild.style.height = - (scrollHeight - d.scroller.clientHeight + d.scrollbarV.clientHeight) + "px"; - } else { - d.scrollbarV.style.display = ""; - d.scrollbarV.firstChild.style.height = "0"; - } - if (needsH) { - d.scrollbarH.style.display = "block"; - d.scrollbarH.style.right = needsV ? scrollbarWidth(d.measure) + "px" : "0"; - d.scrollbarH.firstChild.style.width = - (d.scroller.scrollWidth - d.scroller.clientWidth + d.scrollbarH.clientWidth) + "px"; - } else { - d.scrollbarH.style.display = ""; - d.scrollbarH.firstChild.style.width = "0"; - } - if (needsH && needsV) { - d.scrollbarFiller.style.display = "block"; - d.scrollbarFiller.style.height = d.scrollbarFiller.style.width = scrollbarWidth(d.measure) + "px"; - } else d.scrollbarFiller.style.display = ""; - if (needsH && cm.options.coverGutterNextToScrollbar && cm.options.fixedGutter) { - d.gutterFiller.style.display = "block"; - d.gutterFiller.style.height = scrollbarWidth(d.measure) + "px"; - d.gutterFiller.style.width = d.gutters.offsetWidth + "px"; - } else d.gutterFiller.style.display = ""; - - if (mac_geLion && scrollbarWidth(d.measure) === 0) { - d.scrollbarV.style.minWidth = d.scrollbarH.style.minHeight = mac_geMountainLion ? "18px" : "12px"; - d.scrollbarV.style.pointerEvents = d.scrollbarH.style.pointerEvents = "none"; - } - } - - function visibleLines(display, doc, viewPort) { - var top = display.scroller.scrollTop, height = display.wrapper.clientHeight; - if (typeof viewPort == "number") top = viewPort; - else if (viewPort) {top = viewPort.top; height = viewPort.bottom - viewPort.top;} - top = Math.floor(top - paddingTop(display)); - var bottom = Math.ceil(top + height); - return {from: lineAtHeight(doc, top), to: lineAtHeight(doc, bottom)}; - } - - // LINE NUMBERS - - function alignHorizontally(cm) { - var display = cm.display; - if (!display.alignWidgets && (!display.gutters.firstChild || !cm.options.fixedGutter)) return; - var comp = compensateForHScroll(display) - display.scroller.scrollLeft + cm.doc.scrollLeft; - var gutterW = display.gutters.offsetWidth, l = comp + "px"; - for (var n = display.lineDiv.firstChild; n; n = n.nextSibling) if (n.alignable) { - for (var i = 0, a = n.alignable; i < a.length; ++i) a[i].style.left = l; - } - if (cm.options.fixedGutter) - display.gutters.style.left = (comp + gutterW) + "px"; - } - - function maybeUpdateLineNumberWidth(cm) { - if (!cm.options.lineNumbers) return false; - var doc = cm.doc, last = lineNumberFor(cm.options, doc.first + doc.size - 1), display = cm.display; - if (last.length != display.lineNumChars) { - var test = display.measure.appendChild(elt("div", [elt("div", last)], - "CodeMirror-linenumber CodeMirror-gutter-elt")); - var innerW = test.firstChild.offsetWidth, padding = test.offsetWidth - innerW; - display.lineGutter.style.width = ""; - display.lineNumInnerWidth = Math.max(innerW, display.lineGutter.offsetWidth - padding); - display.lineNumWidth = display.lineNumInnerWidth + padding; - display.lineNumChars = display.lineNumInnerWidth ? last.length : -1; - display.lineGutter.style.width = display.lineNumWidth + "px"; - return true; - } - return false; - } - - function lineNumberFor(options, i) { - return String(options.lineNumberFormatter(i + options.firstLineNumber)); - } - function compensateForHScroll(display) { - return getRect(display.scroller).left - getRect(display.sizer).left; - } - - // DISPLAY DRAWING - - function updateDisplay(cm, changes, viewPort, forced) { - var oldFrom = cm.display.showingFrom, oldTo = cm.display.showingTo, updated; - var visible = visibleLines(cm.display, cm.doc, viewPort); - for (var first = true;; first = false) { - var oldWidth = cm.display.scroller.clientWidth; - if (!updateDisplayInner(cm, changes, visible, forced)) break; - updated = true; - changes = []; - updateSelection(cm); - updateScrollbars(cm); - if (first && cm.options.lineWrapping && oldWidth != cm.display.scroller.clientWidth) { - forced = true; - continue; - } - forced = false; - - // Clip forced viewport to actual scrollable area - if (viewPort) - viewPort = Math.min(cm.display.scroller.scrollHeight - cm.display.scroller.clientHeight, - typeof viewPort == "number" ? viewPort : viewPort.top); - visible = visibleLines(cm.display, cm.doc, viewPort); - if (visible.from >= cm.display.showingFrom && visible.to <= cm.display.showingTo) - break; - } - - if (updated) { - signalLater(cm, "update", cm); - if (cm.display.showingFrom != oldFrom || cm.display.showingTo != oldTo) - signalLater(cm, "viewportChange", cm, cm.display.showingFrom, cm.display.showingTo); - } - return updated; - } - - // Uses a set of changes plus the current scroll position to - // determine which DOM updates have to be made, and makes the - // updates. - function updateDisplayInner(cm, changes, visible, forced) { - var display = cm.display, doc = cm.doc; - if (!display.wrapper.clientWidth) { - display.showingFrom = display.showingTo = doc.first; - display.viewOffset = 0; - return; - } - - // Bail out if the visible area is already rendered and nothing changed. - if (!forced && changes.length == 0 && - visible.from > display.showingFrom && visible.to < display.showingTo) - return; - - if (maybeUpdateLineNumberWidth(cm)) - changes = [{from: doc.first, to: doc.first + doc.size}]; - var gutterW = display.sizer.style.marginLeft = display.gutters.offsetWidth + "px"; - display.scrollbarH.style.left = cm.options.fixedGutter ? gutterW : "0"; - - // Used to determine which lines need their line numbers updated - var positionsChangedFrom = Infinity; - if (cm.options.lineNumbers) - for (var i = 0; i < changes.length; ++i) - if (changes[i].diff && changes[i].from < positionsChangedFrom) { positionsChangedFrom = changes[i].from; } - - var end = doc.first + doc.size; - var from = Math.max(visible.from - cm.options.viewportMargin, doc.first); - var to = Math.min(end, visible.to + cm.options.viewportMargin); - if (display.showingFrom < from && from - display.showingFrom < 20) from = Math.max(doc.first, display.showingFrom); - if (display.showingTo > to && display.showingTo - to < 20) to = Math.min(end, display.showingTo); - if (sawCollapsedSpans) { - from = lineNo(visualLine(doc, getLine(doc, from))); - while (to < end && lineIsHidden(doc, getLine(doc, to))) ++to; - } - - // Create a range of theoretically intact lines, and punch holes - // in that using the change info. - var intact = [{from: Math.max(display.showingFrom, doc.first), - to: Math.min(display.showingTo, end)}]; - if (intact[0].from >= intact[0].to) intact = []; - else intact = computeIntact(intact, changes); - // When merged lines are present, we might have to reduce the - // intact ranges because changes in continued fragments of the - // intact lines do require the lines to be redrawn. - if (sawCollapsedSpans) - for (var i = 0; i < intact.length; ++i) { - var range = intact[i], merged; - while (merged = collapsedSpanAtEnd(getLine(doc, range.to - 1))) { - var newTo = merged.find().from.line; - if (newTo > range.from) range.to = newTo; - else { intact.splice(i--, 1); break; } - } - } - - // Clip off the parts that won't be visible - var intactLines = 0; - for (var i = 0; i < intact.length; ++i) { - var range = intact[i]; - if (range.from < from) range.from = from; - if (range.to > to) range.to = to; - if (range.from >= range.to) intact.splice(i--, 1); - else intactLines += range.to - range.from; - } - if (!forced && intactLines == to - from && from == display.showingFrom && to == display.showingTo) { - updateViewOffset(cm); - return; - } - intact.sort(function(a, b) {return a.from - b.from;}); - - // Avoid crashing on IE's "unspecified error" when in iframes - try { - var focused = document.activeElement; - } catch(e) {} - if (intactLines < (to - from) * .7) display.lineDiv.style.display = "none"; - patchDisplay(cm, from, to, intact, positionsChangedFrom); - display.lineDiv.style.display = ""; - if (focused && document.activeElement != focused && focused.offsetHeight) focused.focus(); - - var different = from != display.showingFrom || to != display.showingTo || - display.lastSizeC != display.wrapper.clientHeight; - // This is just a bogus formula that detects when the editor is - // resized or the font size changes. - if (different) { - display.lastSizeC = display.wrapper.clientHeight; - startWorker(cm, 400); - } - display.showingFrom = from; display.showingTo = to; - - updateHeightsInViewport(cm); - updateViewOffset(cm); - - return true; - } - - function updateHeightsInViewport(cm) { - var display = cm.display; - var prevBottom = display.lineDiv.offsetTop; - for (var node = display.lineDiv.firstChild, height; node; node = node.nextSibling) if (node.lineObj) { - if (ie_lt8) { - var bot = node.offsetTop + node.offsetHeight; - height = bot - prevBottom; - prevBottom = bot; - } else { - var box = getRect(node); - height = box.bottom - box.top; - } - var diff = node.lineObj.height - height; - if (height < 2) height = textHeight(display); - if (diff > .001 || diff < -.001) { - updateLineHeight(node.lineObj, height); - var widgets = node.lineObj.widgets; - if (widgets) for (var i = 0; i < widgets.length; ++i) - widgets[i].height = widgets[i].node.offsetHeight; - } - } - } - - function updateViewOffset(cm) { - var off = cm.display.viewOffset = heightAtLine(cm, getLine(cm.doc, cm.display.showingFrom)); - // Position the mover div to align with the current virtual scroll position - cm.display.mover.style.top = off + "px"; - } - - function computeIntact(intact, changes) { - for (var i = 0, l = changes.length || 0; i < l; ++i) { - var change = changes[i], intact2 = [], diff = change.diff || 0; - for (var j = 0, l2 = intact.length; j < l2; ++j) { - var range = intact[j]; - if (change.to <= range.from && change.diff) { - intact2.push({from: range.from + diff, to: range.to + diff}); - } else if (change.to <= range.from || change.from >= range.to) { - intact2.push(range); - } else { - if (change.from > range.from) - intact2.push({from: range.from, to: change.from}); - if (change.to < range.to) - intact2.push({from: change.to + diff, to: range.to + diff}); - } - } - intact = intact2; - } - return intact; - } - - function getDimensions(cm) { - var d = cm.display, left = {}, width = {}; - for (var n = d.gutters.firstChild, i = 0; n; n = n.nextSibling, ++i) { - left[cm.options.gutters[i]] = n.offsetLeft; - width[cm.options.gutters[i]] = n.offsetWidth; - } - return {fixedPos: compensateForHScroll(d), - gutterTotalWidth: d.gutters.offsetWidth, - gutterLeft: left, - gutterWidth: width, - wrapperWidth: d.wrapper.clientWidth}; - } - - function patchDisplay(cm, from, to, intact, updateNumbersFrom) { - var dims = getDimensions(cm); - var display = cm.display, lineNumbers = cm.options.lineNumbers; - if (!intact.length && (!webkit || !cm.display.currentWheelTarget)) - removeChildren(display.lineDiv); - var container = display.lineDiv, cur = container.firstChild; - - function rm(node) { - var next = node.nextSibling; - if (webkit && mac && cm.display.currentWheelTarget == node) { - node.style.display = "none"; - node.lineObj = null; - } else { - node.parentNode.removeChild(node); - } - return next; - } - - var nextIntact = intact.shift(), lineN = from; - cm.doc.iter(from, to, function(line) { - if (nextIntact && nextIntact.to == lineN) nextIntact = intact.shift(); - if (lineIsHidden(cm.doc, line)) { - if (line.height != 0) updateLineHeight(line, 0); - if (line.widgets && cur && cur.previousSibling) for (var i = 0; i < line.widgets.length; ++i) { - var w = line.widgets[i]; - if (w.showIfHidden) { - var prev = cur.previousSibling; - if (/pre/i.test(prev.nodeName)) { - var wrap = elt("div", null, null, "position: relative"); - prev.parentNode.replaceChild(wrap, prev); - wrap.appendChild(prev); - prev = wrap; - } - var wnode = prev.appendChild(elt("div", [w.node], "CodeMirror-linewidget")); - if (!w.handleMouseEvents) wnode.ignoreEvents = true; - positionLineWidget(w, wnode, prev, dims); - } - } - } else if (nextIntact && nextIntact.from <= lineN && nextIntact.to > lineN) { - // This line is intact. Skip to the actual node. Update its - // line number if needed. - while (cur.lineObj != line) cur = rm(cur); - if (lineNumbers && updateNumbersFrom <= lineN && cur.lineNumber) - setTextContent(cur.lineNumber, lineNumberFor(cm.options, lineN)); - cur = cur.nextSibling; - } else { - // For lines with widgets, make an attempt to find and reuse - // the existing element, so that widgets aren't needlessly - // removed and re-inserted into the dom - if (line.widgets) for (var j = 0, search = cur, reuse; search && j < 20; ++j, search = search.nextSibling) - if (search.lineObj == line && /div/i.test(search.nodeName)) { reuse = search; break; } - // This line needs to be generated. - var lineNode = buildLineElement(cm, line, lineN, dims, reuse); - if (lineNode != reuse) { - container.insertBefore(lineNode, cur); - } else { - while (cur != reuse) cur = rm(cur); - cur = cur.nextSibling; - } - - lineNode.lineObj = line; - } - ++lineN; - }); - while (cur) cur = rm(cur); - } - - function buildLineElement(cm, line, lineNo, dims, reuse) { - var built = buildLineContent(cm, line), lineElement = built.pre; - var markers = line.gutterMarkers, display = cm.display, wrap; - - var bgClass = built.bgClass ? built.bgClass + " " + (line.bgClass || "") : line.bgClass; - if (!cm.options.lineNumbers && !markers && !bgClass && !line.wrapClass && !line.widgets) - return lineElement; - - // Lines with gutter elements, widgets or a background class need - // to be wrapped again, and have the extra elements added to the - // wrapper div - - if (reuse) { - reuse.alignable = null; - var isOk = true, widgetsSeen = 0, insertBefore = null; - for (var n = reuse.firstChild, next; n; n = next) { - next = n.nextSibling; - if (!/\bCodeMirror-linewidget\b/.test(n.className)) { - reuse.removeChild(n); - } else { - for (var i = 0; i < line.widgets.length; ++i) { - var widget = line.widgets[i]; - if (widget.node == n.firstChild) { - if (!widget.above && !insertBefore) insertBefore = n; - positionLineWidget(widget, n, reuse, dims); - ++widgetsSeen; - break; - } - } - if (i == line.widgets.length) { isOk = false; break; } - } - } - reuse.insertBefore(lineElement, insertBefore); - if (isOk && widgetsSeen == line.widgets.length) { - wrap = reuse; - reuse.className = line.wrapClass || ""; - } - } - if (!wrap) { - wrap = elt("div", null, line.wrapClass, "position: relative"); - wrap.appendChild(lineElement); - } - // Kludge to make sure the styled element lies behind the selection (by z-index) - if (bgClass) - wrap.insertBefore(elt("div", null, bgClass + " CodeMirror-linebackground"), wrap.firstChild); - if (cm.options.lineNumbers || markers) { - var gutterWrap = wrap.insertBefore(elt("div", null, null, "position: absolute; left: " + - (cm.options.fixedGutter ? dims.fixedPos : -dims.gutterTotalWidth) + "px"), - wrap.firstChild); - if (cm.options.fixedGutter) (wrap.alignable || (wrap.alignable = [])).push(gutterWrap); - if (cm.options.lineNumbers && (!markers || !markers["CodeMirror-linenumbers"])) - wrap.lineNumber = gutterWrap.appendChild( - elt("div", lineNumberFor(cm.options, lineNo), - "CodeMirror-linenumber CodeMirror-gutter-elt", - "left: " + dims.gutterLeft["CodeMirror-linenumbers"] + "px; width: " - + display.lineNumInnerWidth + "px")); - if (markers) - for (var k = 0; k < cm.options.gutters.length; ++k) { - var id = cm.options.gutters[k], found = markers.hasOwnProperty(id) && markers[id]; - if (found) - gutterWrap.appendChild(elt("div", [found], "CodeMirror-gutter-elt", "left: " + - dims.gutterLeft[id] + "px; width: " + dims.gutterWidth[id] + "px")); - } - } - if (ie_lt8) wrap.style.zIndex = 2; - if (line.widgets && wrap != reuse) for (var i = 0, ws = line.widgets; i < ws.length; ++i) { - var widget = ws[i], node = elt("div", [widget.node], "CodeMirror-linewidget"); - if (!widget.handleMouseEvents) node.ignoreEvents = true; - positionLineWidget(widget, node, wrap, dims); - if (widget.above) - wrap.insertBefore(node, cm.options.lineNumbers && line.height != 0 ? gutterWrap : lineElement); - else - wrap.appendChild(node); - signalLater(widget, "redraw"); - } - return wrap; - } - - function positionLineWidget(widget, node, wrap, dims) { - if (widget.noHScroll) { - (wrap.alignable || (wrap.alignable = [])).push(node); - var width = dims.wrapperWidth; - node.style.left = dims.fixedPos + "px"; - if (!widget.coverGutter) { - width -= dims.gutterTotalWidth; - node.style.paddingLeft = dims.gutterTotalWidth + "px"; - } - node.style.width = width + "px"; - } - if (widget.coverGutter) { - node.style.zIndex = 5; - node.style.position = "relative"; - if (!widget.noHScroll) node.style.marginLeft = -dims.gutterTotalWidth + "px"; - } - } - - // SELECTION / CURSOR - - function updateSelection(cm) { - var display = cm.display; - var collapsed = posEq(cm.doc.sel.from, cm.doc.sel.to); - if (collapsed || cm.options.showCursorWhenSelecting) - updateSelectionCursor(cm); - else - display.cursor.style.display = display.otherCursor.style.display = "none"; - if (!collapsed) - updateSelectionRange(cm); - else - display.selectionDiv.style.display = "none"; - - // Move the hidden textarea near the cursor to prevent scrolling artifacts - if (cm.options.moveInputWithCursor) { - var headPos = cursorCoords(cm, cm.doc.sel.head, "div"); - var wrapOff = getRect(display.wrapper), lineOff = getRect(display.lineDiv); - display.inputDiv.style.top = Math.max(0, Math.min(display.wrapper.clientHeight - 10, - headPos.top + lineOff.top - wrapOff.top)) + "px"; - display.inputDiv.style.left = Math.max(0, Math.min(display.wrapper.clientWidth - 10, - headPos.left + lineOff.left - wrapOff.left)) + "px"; - } - } - - // No selection, plain cursor - function updateSelectionCursor(cm) { - var display = cm.display, pos = cursorCoords(cm, cm.doc.sel.head, "div"); - display.cursor.style.left = pos.left + "px"; - display.cursor.style.top = pos.top + "px"; - display.cursor.style.height = Math.max(0, pos.bottom - pos.top) * cm.options.cursorHeight + "px"; - display.cursor.style.display = ""; - - if (pos.other) { - display.otherCursor.style.display = ""; - display.otherCursor.style.left = pos.other.left + "px"; - display.otherCursor.style.top = pos.other.top + "px"; - display.otherCursor.style.height = (pos.other.bottom - pos.other.top) * .85 + "px"; - } else { display.otherCursor.style.display = "none"; } - } - - // Highlight selection - function updateSelectionRange(cm) { - var display = cm.display, doc = cm.doc, sel = cm.doc.sel; - var fragment = document.createDocumentFragment(); - var clientWidth = display.lineSpace.offsetWidth, pl = paddingLeft(cm.display); - - function add(left, top, width, bottom) { - if (top < 0) top = 0; - fragment.appendChild(elt("div", null, "CodeMirror-selected", "position: absolute; left: " + left + - "px; top: " + top + "px; width: " + (width == null ? clientWidth - left : width) + - "px; height: " + (bottom - top) + "px")); - } - - function drawForLine(line, fromArg, toArg) { - var lineObj = getLine(doc, line); - var lineLen = lineObj.text.length; - var start, end; - function coords(ch, bias) { - return charCoords(cm, Pos(line, ch), "div", lineObj, bias); - } - - iterateBidiSections(getOrder(lineObj), fromArg || 0, toArg == null ? lineLen : toArg, function(from, to, dir) { - var leftPos = coords(from, "left"), rightPos, left, right; - if (from == to) { - rightPos = leftPos; - left = right = leftPos.left; - } else { - rightPos = coords(to - 1, "right"); - if (dir == "rtl") { var tmp = leftPos; leftPos = rightPos; rightPos = tmp; } - left = leftPos.left; - right = rightPos.right; - } - if (fromArg == null && from == 0) left = pl; - if (rightPos.top - leftPos.top > 3) { // Different lines, draw top part - add(left, leftPos.top, null, leftPos.bottom); - left = pl; - if (leftPos.bottom < rightPos.top) add(left, leftPos.bottom, null, rightPos.top); - } - if (toArg == null && to == lineLen) right = clientWidth; - if (!start || leftPos.top < start.top || leftPos.top == start.top && leftPos.left < start.left) - start = leftPos; - if (!end || rightPos.bottom > end.bottom || rightPos.bottom == end.bottom && rightPos.right > end.right) - end = rightPos; - if (left < pl + 1) left = pl; - add(left, rightPos.top, right - left, rightPos.bottom); - }); - return {start: start, end: end}; - } - - if (sel.from.line == sel.to.line) { - drawForLine(sel.from.line, sel.from.ch, sel.to.ch); - } else { - var fromLine = getLine(doc, sel.from.line), toLine = getLine(doc, sel.to.line); - var singleVLine = visualLine(doc, fromLine) == visualLine(doc, toLine); - var leftEnd = drawForLine(sel.from.line, sel.from.ch, singleVLine ? fromLine.text.length : null).end; - var rightStart = drawForLine(sel.to.line, singleVLine ? 0 : null, sel.to.ch).start; - if (singleVLine) { - if (leftEnd.top < rightStart.top - 2) { - add(leftEnd.right, leftEnd.top, null, leftEnd.bottom); - add(pl, rightStart.top, rightStart.left, rightStart.bottom); - } else { - add(leftEnd.right, leftEnd.top, rightStart.left - leftEnd.right, leftEnd.bottom); - } - } - if (leftEnd.bottom < rightStart.top) - add(pl, leftEnd.bottom, null, rightStart.top); - } - - removeChildrenAndAdd(display.selectionDiv, fragment); - display.selectionDiv.style.display = ""; - } - - // Cursor-blinking - function restartBlink(cm) { - if (!cm.state.focused) return; - var display = cm.display; - clearInterval(display.blinker); - var on = true; - display.cursor.style.visibility = display.otherCursor.style.visibility = ""; - if (cm.options.cursorBlinkRate > 0) - display.blinker = setInterval(function() { - display.cursor.style.visibility = display.otherCursor.style.visibility = (on = !on) ? "" : "hidden"; - }, cm.options.cursorBlinkRate); - } - - // HIGHLIGHT WORKER - - function startWorker(cm, time) { - if (cm.doc.mode.startState && cm.doc.frontier < cm.display.showingTo) - cm.state.highlight.set(time, bind(highlightWorker, cm)); - } - - function highlightWorker(cm) { - var doc = cm.doc; - if (doc.frontier < doc.first) doc.frontier = doc.first; - if (doc.frontier >= cm.display.showingTo) return; - var end = +new Date + cm.options.workTime; - var state = copyState(doc.mode, getStateBefore(cm, doc.frontier)); - var changed = [], prevChange; - doc.iter(doc.frontier, Math.min(doc.first + doc.size, cm.display.showingTo + 500), function(line) { - if (doc.frontier >= cm.display.showingFrom) { // Visible - var oldStyles = line.styles; - line.styles = highlightLine(cm, line, state, true); - var ischange = !oldStyles || oldStyles.length != line.styles.length; - for (var i = 0; !ischange && i < oldStyles.length; ++i) ischange = oldStyles[i] != line.styles[i]; - if (ischange) { - if (prevChange && prevChange.end == doc.frontier) prevChange.end++; - else changed.push(prevChange = {start: doc.frontier, end: doc.frontier + 1}); - } - line.stateAfter = copyState(doc.mode, state); - } else { - processLine(cm, line.text, state); - line.stateAfter = doc.frontier % 5 == 0 ? copyState(doc.mode, state) : null; - } - ++doc.frontier; - if (+new Date > end) { - startWorker(cm, cm.options.workDelay); - return true; - } - }); - if (changed.length) - operation(cm, function() { - for (var i = 0; i < changed.length; ++i) - regChange(this, changed[i].start, changed[i].end); - })(); - } - - // Finds the line to start with when starting a parse. Tries to - // find a line with a stateAfter, so that it can start with a - // valid state. If that fails, it returns the line with the - // smallest indentation, which tends to need the least context to - // parse correctly. - function findStartLine(cm, n, precise) { - var minindent, minline, doc = cm.doc; - var lim = precise ? -1 : n - (cm.doc.mode.innerMode ? 1000 : 100); - for (var search = n; search > lim; --search) { - if (search <= doc.first) return doc.first; - var line = getLine(doc, search - 1); - if (line.stateAfter && (!precise || search <= doc.frontier)) return search; - var indented = countColumn(line.text, null, cm.options.tabSize); - if (minline == null || minindent > indented) { - minline = search - 1; - minindent = indented; - } - } - return minline; - } - - function getStateBefore(cm, n, precise) { - var doc = cm.doc, display = cm.display; - if (!doc.mode.startState) return true; - var pos = findStartLine(cm, n, precise), state = pos > doc.first && getLine(doc, pos-1).stateAfter; - if (!state) state = startState(doc.mode); - else state = copyState(doc.mode, state); - doc.iter(pos, n, function(line) { - processLine(cm, line.text, state); - var save = pos == n - 1 || pos % 5 == 0 || pos >= display.showingFrom && pos < display.showingTo; - line.stateAfter = save ? copyState(doc.mode, state) : null; - ++pos; - }); - if (precise) doc.frontier = pos; - return state; - } - - // POSITION MEASUREMENT - - function paddingTop(display) {return display.lineSpace.offsetTop;} - function paddingVert(display) {return display.mover.offsetHeight - display.lineSpace.offsetHeight;} - function paddingLeft(display) { - var e = removeChildrenAndAdd(display.measure, elt("pre", null, null, "text-align: left")).appendChild(elt("span", "x")); - return e.offsetLeft; - } - - function measureChar(cm, line, ch, data, bias) { - var dir = -1; - data = data || measureLine(cm, line); - if (data.crude) { - var left = data.left + ch * data.width; - return {left: left, right: left + data.width, top: data.top, bottom: data.bottom}; - } - - for (var pos = ch;; pos += dir) { - var r = data[pos]; - if (r) break; - if (dir < 0 && pos == 0) dir = 1; - } - bias = pos > ch ? "left" : pos < ch ? "right" : bias; - if (bias == "left" && r.leftSide) r = r.leftSide; - else if (bias == "right" && r.rightSide) r = r.rightSide; - return {left: pos < ch ? r.right : r.left, - right: pos > ch ? r.left : r.right, - top: r.top, - bottom: r.bottom}; - } - - function findCachedMeasurement(cm, line) { - var cache = cm.display.measureLineCache; - for (var i = 0; i < cache.length; ++i) { - var memo = cache[i]; - if (memo.text == line.text && memo.markedSpans == line.markedSpans && - cm.display.scroller.clientWidth == memo.width && - memo.classes == line.textClass + "|" + line.wrapClass) - return memo; - } - } - - function clearCachedMeasurement(cm, line) { - var exists = findCachedMeasurement(cm, line); - if (exists) exists.text = exists.measure = exists.markedSpans = null; - } - - function measureLine(cm, line) { - // First look in the cache - var cached = findCachedMeasurement(cm, line); - if (cached) return cached.measure; - - // Failing that, recompute and store result in cache - var measure = measureLineInner(cm, line); - var cache = cm.display.measureLineCache; - var memo = {text: line.text, width: cm.display.scroller.clientWidth, - markedSpans: line.markedSpans, measure: measure, - classes: line.textClass + "|" + line.wrapClass}; - if (cache.length == 16) cache[++cm.display.measureLineCachePos % 16] = memo; - else cache.push(memo); - return measure; - } - - function measureLineInner(cm, line) { - if (!cm.options.lineWrapping && line.text.length >= cm.options.crudeMeasuringFrom) - return crudelyMeasureLine(cm, line); - - var display = cm.display, measure = emptyArray(line.text.length); - var pre = buildLineContent(cm, line, measure, true).pre; - - // IE does not cache element positions of inline elements between - // calls to getBoundingClientRect. This makes the loop below, - // which gathers the positions of all the characters on the line, - // do an amount of layout work quadratic to the number of - // characters. When line wrapping is off, we try to improve things - // by first subdividing the line into a bunch of inline blocks, so - // that IE can reuse most of the layout information from caches - // for those blocks. This does interfere with line wrapping, so it - // doesn't work when wrapping is on, but in that case the - // situation is slightly better, since IE does cache line-wrapping - // information and only recomputes per-line. - if (ie && !ie_lt8 && !cm.options.lineWrapping && pre.childNodes.length > 100) { - var fragment = document.createDocumentFragment(); - var chunk = 10, n = pre.childNodes.length; - for (var i = 0, chunks = Math.ceil(n / chunk); i < chunks; ++i) { - var wrap = elt("div", null, null, "display: inline-block"); - for (var j = 0; j < chunk && n; ++j) { - wrap.appendChild(pre.firstChild); - --n; - } - fragment.appendChild(wrap); - } - pre.appendChild(fragment); - } - - removeChildrenAndAdd(display.measure, pre); - - var outer = getRect(display.lineDiv); - var vranges = [], data = emptyArray(line.text.length), maxBot = pre.offsetHeight; - // Work around an IE7/8 bug where it will sometimes have randomly - // replaced our pre with a clone at this point. - if (ie_lt9 && display.measure.first != pre) - removeChildrenAndAdd(display.measure, pre); - - function measureRect(rect) { - var top = rect.top - outer.top, bot = rect.bottom - outer.top; - if (bot > maxBot) bot = maxBot; - if (top < 0) top = 0; - for (var i = vranges.length - 2; i >= 0; i -= 2) { - var rtop = vranges[i], rbot = vranges[i+1]; - if (rtop > bot || rbot < top) continue; - if (rtop <= top && rbot >= bot || - top <= rtop && bot >= rbot || - Math.min(bot, rbot) - Math.max(top, rtop) >= (bot - top) >> 1) { - vranges[i] = Math.min(top, rtop); - vranges[i+1] = Math.max(bot, rbot); - break; - } - } - if (i < 0) { i = vranges.length; vranges.push(top, bot); } - return {left: rect.left - outer.left, - right: rect.right - outer.left, - top: i, bottom: null}; - } - function finishRect(rect) { - rect.bottom = vranges[rect.top+1]; - rect.top = vranges[rect.top]; - } - - for (var i = 0, cur; i < measure.length; ++i) if (cur = measure[i]) { - var node = cur, rect = null; - // A widget might wrap, needs special care - if (/\bCodeMirror-widget\b/.test(cur.className) && cur.getClientRects) { - if (cur.firstChild.nodeType == 1) node = cur.firstChild; - var rects = node.getClientRects(); - if (rects.length > 1) { - rect = data[i] = measureRect(rects[0]); - rect.rightSide = measureRect(rects[rects.length - 1]); - } - } - if (!rect) rect = data[i] = measureRect(getRect(node)); - if (cur.measureRight) rect.right = getRect(cur.measureRight).left; - if (cur.leftSide) rect.leftSide = measureRect(getRect(cur.leftSide)); - } - removeChildren(cm.display.measure); - for (var i = 0, cur; i < data.length; ++i) if (cur = data[i]) { - finishRect(cur); - if (cur.leftSide) finishRect(cur.leftSide); - if (cur.rightSide) finishRect(cur.rightSide); - } - return data; - } - - function crudelyMeasureLine(cm, line) { - var copy = new Line(line.text.slice(0, 100), null); - if (line.textClass) copy.textClass = line.textClass; - var measure = measureLineInner(cm, copy); - var left = measureChar(cm, copy, 0, measure, "left"); - var right = measureChar(cm, copy, 99, measure, "right"); - return {crude: true, top: left.top, left: left.left, bottom: left.bottom, width: (right.right - left.left) / 100}; - } - - function measureLineWidth(cm, line) { - var hasBadSpan = false; - if (line.markedSpans) for (var i = 0; i < line.markedSpans; ++i) { - var sp = line.markedSpans[i]; - if (sp.collapsed && (sp.to == null || sp.to == line.text.length)) hasBadSpan = true; - } - var cached = !hasBadSpan && findCachedMeasurement(cm, line); - if (cached || line.text.length >= cm.options.crudeMeasuringFrom) - return measureChar(cm, line, line.text.length, cached && cached.measure, "right").right; - - var pre = buildLineContent(cm, line, null, true).pre; - var end = pre.appendChild(zeroWidthElement(cm.display.measure)); - removeChildrenAndAdd(cm.display.measure, pre); - return getRect(end).right - getRect(cm.display.lineDiv).left; - } - - function clearCaches(cm) { - cm.display.measureLineCache.length = cm.display.measureLineCachePos = 0; - cm.display.cachedCharWidth = cm.display.cachedTextHeight = null; - if (!cm.options.lineWrapping) cm.display.maxLineChanged = true; - cm.display.lineNumChars = null; - } - - function pageScrollX() { return window.pageXOffset || (document.documentElement || document.body).scrollLeft; } - function pageScrollY() { return window.pageYOffset || (document.documentElement || document.body).scrollTop; } - - // Context is one of "line", "div" (display.lineDiv), "local"/null (editor), or "page" - function intoCoordSystem(cm, lineObj, rect, context) { - if (lineObj.widgets) for (var i = 0; i < lineObj.widgets.length; ++i) if (lineObj.widgets[i].above) { - var size = widgetHeight(lineObj.widgets[i]); - rect.top += size; rect.bottom += size; - } - if (context == "line") return rect; - if (!context) context = "local"; - var yOff = heightAtLine(cm, lineObj); - if (context == "local") yOff += paddingTop(cm.display); - else yOff -= cm.display.viewOffset; - if (context == "page" || context == "window") { - var lOff = getRect(cm.display.lineSpace); - yOff += lOff.top + (context == "window" ? 0 : pageScrollY()); - var xOff = lOff.left + (context == "window" ? 0 : pageScrollX()); - rect.left += xOff; rect.right += xOff; - } - rect.top += yOff; rect.bottom += yOff; - return rect; - } - - // Context may be "window", "page", "div", or "local"/null - // Result is in "div" coords - function fromCoordSystem(cm, coords, context) { - if (context == "div") return coords; - var left = coords.left, top = coords.top; - // First move into "page" coordinate system - if (context == "page") { - left -= pageScrollX(); - top -= pageScrollY(); - } else if (context == "local" || !context) { - var localBox = getRect(cm.display.sizer); - left += localBox.left; - top += localBox.top; - } - - var lineSpaceBox = getRect(cm.display.lineSpace); - return {left: left - lineSpaceBox.left, top: top - lineSpaceBox.top}; - } - - function charCoords(cm, pos, context, lineObj, bias) { - if (!lineObj) lineObj = getLine(cm.doc, pos.line); - return intoCoordSystem(cm, lineObj, measureChar(cm, lineObj, pos.ch, null, bias), context); - } - - function cursorCoords(cm, pos, context, lineObj, measurement) { - lineObj = lineObj || getLine(cm.doc, pos.line); - if (!measurement) measurement = measureLine(cm, lineObj); - function get(ch, right) { - var m = measureChar(cm, lineObj, ch, measurement, right ? "right" : "left"); - if (right) m.left = m.right; else m.right = m.left; - return intoCoordSystem(cm, lineObj, m, context); - } - function getBidi(ch, partPos) { - var part = order[partPos], right = part.level % 2; - if (ch == bidiLeft(part) && partPos && part.level < order[partPos - 1].level) { - part = order[--partPos]; - ch = bidiRight(part) - (part.level % 2 ? 0 : 1); - right = true; - } else if (ch == bidiRight(part) && partPos < order.length - 1 && part.level < order[partPos + 1].level) { - part = order[++partPos]; - ch = bidiLeft(part) - part.level % 2; - right = false; - } - if (right && ch == part.to && ch > part.from) return get(ch - 1); - return get(ch, right); - } - var order = getOrder(lineObj), ch = pos.ch; - if (!order) return get(ch); - var partPos = getBidiPartAt(order, ch); - var val = getBidi(ch, partPos); - if (bidiOther != null) val.other = getBidi(ch, bidiOther); - return val; - } - - function PosWithInfo(line, ch, outside, xRel) { - var pos = new Pos(line, ch); - pos.xRel = xRel; - if (outside) pos.outside = true; - return pos; - } - - // Coords must be lineSpace-local - function coordsChar(cm, x, y) { - var doc = cm.doc; - y += cm.display.viewOffset; - if (y < 0) return PosWithInfo(doc.first, 0, true, -1); - var lineNo = lineAtHeight(doc, y), last = doc.first + doc.size - 1; - if (lineNo > last) - return PosWithInfo(doc.first + doc.size - 1, getLine(doc, last).text.length, true, 1); - if (x < 0) x = 0; - - for (;;) { - var lineObj = getLine(doc, lineNo); - var found = coordsCharInner(cm, lineObj, lineNo, x, y); - var merged = collapsedSpanAtEnd(lineObj); - var mergedPos = merged && merged.find(); - if (merged && (found.ch > mergedPos.from.ch || found.ch == mergedPos.from.ch && found.xRel > 0)) - lineNo = mergedPos.to.line; - else - return found; - } - } - - function coordsCharInner(cm, lineObj, lineNo, x, y) { - var innerOff = y - heightAtLine(cm, lineObj); - var wrongLine = false, adjust = 2 * cm.display.wrapper.clientWidth; - var measurement = measureLine(cm, lineObj); - - function getX(ch) { - var sp = cursorCoords(cm, Pos(lineNo, ch), "line", - lineObj, measurement); - wrongLine = true; - if (innerOff > sp.bottom) return sp.left - adjust; - else if (innerOff < sp.top) return sp.left + adjust; - else wrongLine = false; - return sp.left; - } - - var bidi = getOrder(lineObj), dist = lineObj.text.length; - var from = lineLeft(lineObj), to = lineRight(lineObj); - var fromX = getX(from), fromOutside = wrongLine, toX = getX(to), toOutside = wrongLine; - - if (x > toX) return PosWithInfo(lineNo, to, toOutside, 1); - // Do a binary search between these bounds. - for (;;) { - if (bidi ? to == from || to == moveVisually(lineObj, from, 1) : to - from <= 1) { - var ch = x < fromX || x - fromX <= toX - x ? from : to; - var xDiff = x - (ch == from ? fromX : toX); - while (isExtendingChar.test(lineObj.text.charAt(ch))) ++ch; - var pos = PosWithInfo(lineNo, ch, ch == from ? fromOutside : toOutside, - xDiff < 0 ? -1 : xDiff ? 1 : 0); - return pos; - } - var step = Math.ceil(dist / 2), middle = from + step; - if (bidi) { - middle = from; - for (var i = 0; i < step; ++i) middle = moveVisually(lineObj, middle, 1); - } - var middleX = getX(middle); - if (middleX > x) {to = middle; toX = middleX; if (toOutside = wrongLine) toX += 1000; dist = step;} - else {from = middle; fromX = middleX; fromOutside = wrongLine; dist -= step;} - } - } - - var measureText; - function textHeight(display) { - if (display.cachedTextHeight != null) return display.cachedTextHeight; - if (measureText == null) { - measureText = elt("pre"); - // Measure a bunch of lines, for browsers that compute - // fractional heights. - for (var i = 0; i < 49; ++i) { - measureText.appendChild(document.createTextNode("x")); - measureText.appendChild(elt("br")); - } - measureText.appendChild(document.createTextNode("x")); - } - removeChildrenAndAdd(display.measure, measureText); - var height = measureText.offsetHeight / 50; - if (height > 3) display.cachedTextHeight = height; - removeChildren(display.measure); - return height || 1; - } - - function charWidth(display) { - if (display.cachedCharWidth != null) return display.cachedCharWidth; - var anchor = elt("span", "x"); - var pre = elt("pre", [anchor]); - removeChildrenAndAdd(display.measure, pre); - var width = anchor.offsetWidth; - if (width > 2) display.cachedCharWidth = width; - return width || 10; - } - - // OPERATIONS - - // Operations are used to wrap changes in such a way that each - // change won't have to update the cursor and display (which would - // be awkward, slow, and error-prone), but instead updates are - // batched and then all combined and executed at once. - - var nextOpId = 0; - function startOperation(cm) { - cm.curOp = { - // An array of ranges of lines that have to be updated. See - // updateDisplay. - changes: [], - forceUpdate: false, - updateInput: null, - userSelChange: null, - textChanged: null, - selectionChanged: false, - cursorActivity: false, - updateMaxLine: false, - updateScrollPos: false, - id: ++nextOpId - }; - if (!delayedCallbackDepth++) delayedCallbacks = []; - } - - function endOperation(cm) { - var op = cm.curOp, doc = cm.doc, display = cm.display; - cm.curOp = null; - - if (op.updateMaxLine) computeMaxLength(cm); - if (display.maxLineChanged && !cm.options.lineWrapping && display.maxLine) { - var width = measureLineWidth(cm, display.maxLine); - display.sizer.style.minWidth = Math.max(0, width + 3 + scrollerCutOff) + "px"; - display.maxLineChanged = false; - var maxScrollLeft = Math.max(0, display.sizer.offsetLeft + display.sizer.offsetWidth - display.scroller.clientWidth); - if (maxScrollLeft < doc.scrollLeft && !op.updateScrollPos) - setScrollLeft(cm, Math.min(display.scroller.scrollLeft, maxScrollLeft), true); - } - var newScrollPos, updated; - if (op.updateScrollPos) { - newScrollPos = op.updateScrollPos; - } else if (op.selectionChanged && display.scroller.clientHeight) { // don't rescroll if not visible - var coords = cursorCoords(cm, doc.sel.head); - newScrollPos = calculateScrollPos(cm, coords.left, coords.top, coords.left, coords.bottom); - } - if (op.changes.length || op.forceUpdate || newScrollPos && newScrollPos.scrollTop != null) { - updated = updateDisplay(cm, op.changes, newScrollPos && newScrollPos.scrollTop, op.forceUpdate); - if (cm.display.scroller.offsetHeight) cm.doc.scrollTop = cm.display.scroller.scrollTop; - } - if (!updated && op.selectionChanged) updateSelection(cm); - if (op.updateScrollPos) { - var top = Math.max(0, Math.min(display.scroller.scrollHeight - display.scroller.clientHeight, newScrollPos.scrollTop)); - var left = Math.max(0, Math.min(display.scroller.scrollWidth - display.scroller.clientWidth, newScrollPos.scrollLeft)); - display.scroller.scrollTop = display.scrollbarV.scrollTop = doc.scrollTop = top; - display.scroller.scrollLeft = display.scrollbarH.scrollLeft = doc.scrollLeft = left; - alignHorizontally(cm); - if (op.scrollToPos) - scrollPosIntoView(cm, clipPos(cm.doc, op.scrollToPos.from), - clipPos(cm.doc, op.scrollToPos.to), op.scrollToPos.margin); - } else if (newScrollPos) { - scrollCursorIntoView(cm); - } - if (op.selectionChanged) restartBlink(cm); - - if (cm.state.focused && op.updateInput) - resetInput(cm, op.userSelChange); - - var hidden = op.maybeHiddenMarkers, unhidden = op.maybeUnhiddenMarkers; - if (hidden) for (var i = 0; i < hidden.length; ++i) - if (!hidden[i].lines.length) signal(hidden[i], "hide"); - if (unhidden) for (var i = 0; i < unhidden.length; ++i) - if (unhidden[i].lines.length) signal(unhidden[i], "unhide"); - - var delayed; - if (!--delayedCallbackDepth) { - delayed = delayedCallbacks; - delayedCallbacks = null; - } - if (op.textChanged) - signal(cm, "change", cm, op.textChanged); - if (op.cursorActivity) signal(cm, "cursorActivity", cm); - if (delayed) for (var i = 0; i < delayed.length; ++i) delayed[i](); - } - - // Wraps a function in an operation. Returns the wrapped function. - function operation(cm1, f) { - return function() { - var cm = cm1 || this, withOp = !cm.curOp; - if (withOp) startOperation(cm); - try { var result = f.apply(cm, arguments); } - finally { if (withOp) endOperation(cm); } - return result; - }; - } - function docOperation(f) { - return function() { - var withOp = this.cm && !this.cm.curOp, result; - if (withOp) startOperation(this.cm); - try { result = f.apply(this, arguments); } - finally { if (withOp) endOperation(this.cm); } - return result; - }; - } - function runInOp(cm, f) { - var withOp = !cm.curOp, result; - if (withOp) startOperation(cm); - try { result = f(); } - finally { if (withOp) endOperation(cm); } - return result; - } - - function regChange(cm, from, to, lendiff) { - if (from == null) from = cm.doc.first; - if (to == null) to = cm.doc.first + cm.doc.size; - cm.curOp.changes.push({from: from, to: to, diff: lendiff}); - } - - // INPUT HANDLING - - function slowPoll(cm) { - if (cm.display.pollingFast) return; - cm.display.poll.set(cm.options.pollInterval, function() { - readInput(cm); - if (cm.state.focused) slowPoll(cm); - }); - } - - function fastPoll(cm) { - var missed = false; - cm.display.pollingFast = true; - function p() { - var changed = readInput(cm); - if (!changed && !missed) {missed = true; cm.display.poll.set(60, p);} - else {cm.display.pollingFast = false; slowPoll(cm);} - } - cm.display.poll.set(20, p); - } - - // prevInput is a hack to work with IME. If we reset the textarea - // on every change, that breaks IME. So we look for changes - // compared to the previous content instead. (Modern browsers have - // events that indicate IME taking place, but these are not widely - // supported or compatible enough yet to rely on.) - function readInput(cm) { - var input = cm.display.input, prevInput = cm.display.prevInput, doc = cm.doc, sel = doc.sel; - if (!cm.state.focused || hasSelection(input) || isReadOnly(cm) || cm.state.disableInput) return false; - if (cm.state.pasteIncoming && cm.state.fakedLastChar) { - input.value = input.value.substring(0, input.value.length - 1); - cm.state.fakedLastChar = false; - } - var text = input.value; - if (text == prevInput && posEq(sel.from, sel.to)) return false; - if (ie && !ie_lt9 && cm.display.inputHasSelection === text) { - resetInput(cm, true); - return false; - } - - var withOp = !cm.curOp; - if (withOp) startOperation(cm); - sel.shift = false; - var same = 0, l = Math.min(prevInput.length, text.length); - while (same < l && prevInput.charCodeAt(same) == text.charCodeAt(same)) ++same; - var from = sel.from, to = sel.to; - if (same < prevInput.length) - from = Pos(from.line, from.ch - (prevInput.length - same)); - else if (cm.state.overwrite && posEq(from, to) && !cm.state.pasteIncoming) - to = Pos(to.line, Math.min(getLine(doc, to.line).text.length, to.ch + (text.length - same))); - - var updateInput = cm.curOp.updateInput; - var changeEvent = {from: from, to: to, text: splitLines(text.slice(same)), - origin: cm.state.pasteIncoming ? "paste" : "+input"}; - makeChange(cm.doc, changeEvent, "end"); - cm.curOp.updateInput = updateInput; - signalLater(cm, "inputRead", cm, changeEvent); - - if (text.length > 1000 || text.indexOf("\n") > -1) input.value = cm.display.prevInput = ""; - else cm.display.prevInput = text; - if (withOp) endOperation(cm); - cm.state.pasteIncoming = false; - return true; - } - - function resetInput(cm, user) { - var minimal, selected, doc = cm.doc; - if (!posEq(doc.sel.from, doc.sel.to)) { - cm.display.prevInput = ""; - minimal = hasCopyEvent && - (doc.sel.to.line - doc.sel.from.line > 100 || (selected = cm.getSelection()).length > 1000); - var content = minimal ? "-" : selected || cm.getSelection(); - cm.display.input.value = content; - if (cm.state.focused) selectInput(cm.display.input); - if (ie && !ie_lt9) cm.display.inputHasSelection = content; - } else if (user) { - cm.display.prevInput = cm.display.input.value = ""; - if (ie && !ie_lt9) cm.display.inputHasSelection = null; - } - cm.display.inaccurateSelection = minimal; - } - - function focusInput(cm) { - if (cm.options.readOnly != "nocursor" && (!mobile || document.activeElement != cm.display.input)) - cm.display.input.focus(); - } - - function isReadOnly(cm) { - return cm.options.readOnly || cm.doc.cantEdit; - } - - // EVENT HANDLERS - - function registerEventHandlers(cm) { - var d = cm.display; - on(d.scroller, "mousedown", operation(cm, onMouseDown)); - if (ie) - on(d.scroller, "dblclick", operation(cm, function(e) { - if (signalDOMEvent(cm, e)) return; - var pos = posFromMouse(cm, e); - if (!pos || clickInGutter(cm, e) || eventInWidget(cm.display, e)) return; - e_preventDefault(e); - var word = findWordAt(getLine(cm.doc, pos.line).text, pos); - extendSelection(cm.doc, word.from, word.to); - })); - else - on(d.scroller, "dblclick", function(e) { signalDOMEvent(cm, e) || e_preventDefault(e); }); - on(d.lineSpace, "selectstart", function(e) { - if (!eventInWidget(d, e)) e_preventDefault(e); - }); - // Gecko browsers fire contextmenu *after* opening the menu, at - // which point we can't mess with it anymore. Context menu is - // handled in onMouseDown for Gecko. - if (!captureMiddleClick) on(d.scroller, "contextmenu", function(e) {onContextMenu(cm, e);}); - - on(d.scroller, "scroll", function() { - if (d.scroller.clientHeight) { - setScrollTop(cm, d.scroller.scrollTop); - setScrollLeft(cm, d.scroller.scrollLeft, true); - signal(cm, "scroll", cm); - } - }); - on(d.scrollbarV, "scroll", function() { - if (d.scroller.clientHeight) setScrollTop(cm, d.scrollbarV.scrollTop); - }); - on(d.scrollbarH, "scroll", function() { - if (d.scroller.clientHeight) setScrollLeft(cm, d.scrollbarH.scrollLeft); - }); - - on(d.scroller, "mousewheel", function(e){onScrollWheel(cm, e);}); - on(d.scroller, "DOMMouseScroll", function(e){onScrollWheel(cm, e);}); - - function reFocus() { if (cm.state.focused) setTimeout(bind(focusInput, cm), 0); } - on(d.scrollbarH, "mousedown", reFocus); - on(d.scrollbarV, "mousedown", reFocus); - // Prevent wrapper from ever scrolling - on(d.wrapper, "scroll", function() { d.wrapper.scrollTop = d.wrapper.scrollLeft = 0; }); - - var resizeTimer; - function onResize() { - if (resizeTimer == null) resizeTimer = setTimeout(function() { - resizeTimer = null; - // Might be a text scaling operation, clear size caches. - d.cachedCharWidth = d.cachedTextHeight = knownScrollbarWidth = null; - clearCaches(cm); - runInOp(cm, bind(regChange, cm)); - }, 100); - } - on(window, "resize", onResize); - // Above handler holds on to the editor and its data structures. - // Here we poll to unregister it when the editor is no longer in - // the document, so that it can be garbage-collected. - function unregister() { - for (var p = d.wrapper.parentNode; p && p != document.body; p = p.parentNode) {} - if (p) setTimeout(unregister, 5000); - else off(window, "resize", onResize); - } - setTimeout(unregister, 5000); - - on(d.input, "keyup", operation(cm, function(e) { - if (signalDOMEvent(cm, e) || cm.options.onKeyEvent && cm.options.onKeyEvent(cm, addStop(e))) return; - if (e.keyCode == 16) cm.doc.sel.shift = false; - })); - on(d.input, "input", function() { - if (ie && !ie_lt9 && cm.display.inputHasSelection) cm.display.inputHasSelection = null; - fastPoll(cm); - }); - on(d.input, "keydown", operation(cm, onKeyDown)); - on(d.input, "keypress", operation(cm, onKeyPress)); - on(d.input, "focus", bind(onFocus, cm)); - on(d.input, "blur", bind(onBlur, cm)); - - function drag_(e) { - if (signalDOMEvent(cm, e) || cm.options.onDragEvent && cm.options.onDragEvent(cm, addStop(e))) return; - e_stop(e); - } - if (cm.options.dragDrop) { - on(d.scroller, "dragstart", function(e){onDragStart(cm, e);}); - on(d.scroller, "dragenter", drag_); - on(d.scroller, "dragover", drag_); - on(d.scroller, "drop", operation(cm, onDrop)); - } - on(d.scroller, "paste", function(e) { - if (eventInWidget(d, e)) return; - focusInput(cm); - fastPoll(cm); - }); - on(d.input, "paste", function() { - // Workaround for webkit bug https://bugs.webkit.org/show_bug.cgi?id=90206 - // Add a char to the end of textarea before paste occur so that - // selection doesn't span to the end of textarea. - if (webkit && !cm.state.fakedLastChar && !(new Date - cm.state.lastMiddleDown < 200)) { - var start = d.input.selectionStart, end = d.input.selectionEnd; - d.input.value += "$"; - d.input.selectionStart = start; - d.input.selectionEnd = end; - cm.state.fakedLastChar = true; - } - cm.state.pasteIncoming = true; - fastPoll(cm); - }); - - function prepareCopy() { - if (d.inaccurateSelection) { - d.prevInput = ""; - d.inaccurateSelection = false; - d.input.value = cm.getSelection(); - selectInput(d.input); - } - } - on(d.input, "cut", prepareCopy); - on(d.input, "copy", prepareCopy); - - // Needed to handle Tab key in KHTML - if (khtml) on(d.sizer, "mouseup", function() { - if (document.activeElement == d.input) d.input.blur(); - focusInput(cm); - }); - } - - function eventInWidget(display, e) { - for (var n = e_target(e); n != display.wrapper; n = n.parentNode) { - if (!n || n.ignoreEvents || n.parentNode == display.sizer && n != display.mover) return true; - } - } - - function posFromMouse(cm, e, liberal) { - var display = cm.display; - if (!liberal) { - var target = e_target(e); - if (target == display.scrollbarH || target == display.scrollbarH.firstChild || - target == display.scrollbarV || target == display.scrollbarV.firstChild || - target == display.scrollbarFiller || target == display.gutterFiller) return null; - } - var x, y, space = getRect(display.lineSpace); - // Fails unpredictably on IE[67] when mouse is dragged around quickly. - try { x = e.clientX; y = e.clientY; } catch (e) { return null; } - return coordsChar(cm, x - space.left, y - space.top); - } - - var lastClick, lastDoubleClick; - function onMouseDown(e) { - if (signalDOMEvent(this, e)) return; - var cm = this, display = cm.display, doc = cm.doc, sel = doc.sel; - sel.shift = e.shiftKey; - - if (eventInWidget(display, e)) { - if (!webkit) { - display.scroller.draggable = false; - setTimeout(function(){display.scroller.draggable = true;}, 100); - } - return; - } - if (clickInGutter(cm, e)) return; - var start = posFromMouse(cm, e); - - switch (e_button(e)) { - case 3: - if (captureMiddleClick) onContextMenu.call(cm, cm, e); - return; - case 2: - if (webkit) cm.state.lastMiddleDown = +new Date; - if (start) extendSelection(cm.doc, start); - setTimeout(bind(focusInput, cm), 20); - e_preventDefault(e); - return; - } - // For button 1, if it was clicked inside the editor - // (posFromMouse returning non-null), we have to adjust the - // selection. - if (!start) {if (e_target(e) == display.scroller) e_preventDefault(e); return;} - - if (!cm.state.focused) onFocus(cm); - - var now = +new Date, type = "single"; - if (lastDoubleClick && lastDoubleClick.time > now - 400 && posEq(lastDoubleClick.pos, start)) { - type = "triple"; - e_preventDefault(e); - setTimeout(bind(focusInput, cm), 20); - selectLine(cm, start.line); - } else if (lastClick && lastClick.time > now - 400 && posEq(lastClick.pos, start)) { - type = "double"; - lastDoubleClick = {time: now, pos: start}; - e_preventDefault(e); - var word = findWordAt(getLine(doc, start.line).text, start); - extendSelection(cm.doc, word.from, word.to); - } else { lastClick = {time: now, pos: start}; } - - var last = start; - if (cm.options.dragDrop && dragAndDrop && !isReadOnly(cm) && !posEq(sel.from, sel.to) && - !posLess(start, sel.from) && !posLess(sel.to, start) && type == "single") { - var dragEnd = operation(cm, function(e2) { - if (webkit) display.scroller.draggable = false; - cm.state.draggingText = false; - off(document, "mouseup", dragEnd); - off(display.scroller, "drop", dragEnd); - if (Math.abs(e.clientX - e2.clientX) + Math.abs(e.clientY - e2.clientY) < 10) { - e_preventDefault(e2); - extendSelection(cm.doc, start); - focusInput(cm); - } - }); - // Let the drag handler handle this. - if (webkit) display.scroller.draggable = true; - cm.state.draggingText = dragEnd; - // IE's approach to draggable - if (display.scroller.dragDrop) display.scroller.dragDrop(); - on(document, "mouseup", dragEnd); - on(display.scroller, "drop", dragEnd); - return; - } - e_preventDefault(e); - if (type == "single") extendSelection(cm.doc, clipPos(doc, start)); - - var startstart = sel.from, startend = sel.to, lastPos = start; - - function doSelect(cur) { - if (posEq(lastPos, cur)) return; - lastPos = cur; - - if (type == "single") { - extendSelection(cm.doc, clipPos(doc, start), cur); - return; - } - - startstart = clipPos(doc, startstart); - startend = clipPos(doc, startend); - if (type == "double") { - var word = findWordAt(getLine(doc, cur.line).text, cur); - if (posLess(cur, startstart)) extendSelection(cm.doc, word.from, startend); - else extendSelection(cm.doc, startstart, word.to); - } else if (type == "triple") { - if (posLess(cur, startstart)) extendSelection(cm.doc, startend, clipPos(doc, Pos(cur.line, 0))); - else extendSelection(cm.doc, startstart, clipPos(doc, Pos(cur.line + 1, 0))); - } - } - - var editorSize = getRect(display.wrapper); - // Used to ensure timeout re-tries don't fire when another extend - // happened in the meantime (clearTimeout isn't reliable -- at - // least on Chrome, the timeouts still happen even when cleared, - // if the clear happens after their scheduled firing time). - var counter = 0; - - function extend(e) { - var curCount = ++counter; - var cur = posFromMouse(cm, e, true); - if (!cur) return; - if (!posEq(cur, last)) { - if (!cm.state.focused) onFocus(cm); - last = cur; - doSelect(cur); - var visible = visibleLines(display, doc); - if (cur.line >= visible.to || cur.line < visible.from) - setTimeout(operation(cm, function(){if (counter == curCount) extend(e);}), 150); - } else { - var outside = e.clientY < editorSize.top ? -20 : e.clientY > editorSize.bottom ? 20 : 0; - if (outside) setTimeout(operation(cm, function() { - if (counter != curCount) return; - display.scroller.scrollTop += outside; - extend(e); - }), 50); - } - } - - function done(e) { - counter = Infinity; - e_preventDefault(e); - focusInput(cm); - off(document, "mousemove", move); - off(document, "mouseup", up); - } - - var move = operation(cm, function(e) { - if (!ie && !e_button(e)) done(e); - else extend(e); - }); - var up = operation(cm, done); - on(document, "mousemove", move); - on(document, "mouseup", up); - } - - function gutterEvent(cm, e, type, prevent, signalfn) { - try { var mX = e.clientX, mY = e.clientY; } - catch(e) { return false; } - if (mX >= Math.floor(getRect(cm.display.gutters).right)) return false; - if (prevent) e_preventDefault(e); - - var display = cm.display; - var lineBox = getRect(display.lineDiv); - - if (mY > lineBox.bottom || !hasHandler(cm, type)) return e_defaultPrevented(e); - mY -= lineBox.top - display.viewOffset; - - for (var i = 0; i < cm.options.gutters.length; ++i) { - var g = display.gutters.childNodes[i]; - if (g && getRect(g).right >= mX) { - var line = lineAtHeight(cm.doc, mY); - var gutter = cm.options.gutters[i]; - signalfn(cm, type, cm, line, gutter, e); - return e_defaultPrevented(e); - } - } - } - - function contextMenuInGutter(cm, e) { - if (!hasHandler(cm, "gutterContextMenu")) return false; - return gutterEvent(cm, e, "gutterContextMenu", false, signal); - } - - function clickInGutter(cm, e) { - return gutterEvent(cm, e, "gutterClick", true, signalLater); - } - - // Kludge to work around strange IE behavior where it'll sometimes - // re-fire a series of drag-related events right after the drop (#1551) - var lastDrop = 0; - - function onDrop(e) { - var cm = this; - if (signalDOMEvent(cm, e) || eventInWidget(cm.display, e) || (cm.options.onDragEvent && cm.options.onDragEvent(cm, addStop(e)))) - return; - e_preventDefault(e); - if (ie) lastDrop = +new Date; - var pos = posFromMouse(cm, e, true), files = e.dataTransfer.files; - if (!pos || isReadOnly(cm)) return; - if (files && files.length && window.FileReader && window.File) { - var n = files.length, text = Array(n), read = 0; - var loadFile = function(file, i) { - var reader = new FileReader; - reader.onload = function() { - text[i] = reader.result; - if (++read == n) { - pos = clipPos(cm.doc, pos); - makeChange(cm.doc, {from: pos, to: pos, text: splitLines(text.join("\n")), origin: "paste"}, "around"); - } - }; - reader.readAsText(file); - }; - for (var i = 0; i < n; ++i) loadFile(files[i], i); - } else { - // Don't do a replace if the drop happened inside of the selected text. - if (cm.state.draggingText && !(posLess(pos, cm.doc.sel.from) || posLess(cm.doc.sel.to, pos))) { - cm.state.draggingText(e); - // Ensure the editor is re-focused - setTimeout(bind(focusInput, cm), 20); - return; - } - try { - var text = e.dataTransfer.getData("Text"); - if (text) { - var curFrom = cm.doc.sel.from, curTo = cm.doc.sel.to; - setSelection(cm.doc, pos, pos); - if (cm.state.draggingText) replaceRange(cm.doc, "", curFrom, curTo, "paste"); - cm.replaceSelection(text, null, "paste"); - focusInput(cm); - } - } - catch(e){} - } - } - - function onDragStart(cm, e) { - if (ie && (!cm.state.draggingText || +new Date - lastDrop < 100)) { e_stop(e); return; } - if (signalDOMEvent(cm, e) || eventInWidget(cm.display, e)) return; - - var txt = cm.getSelection(); - e.dataTransfer.setData("Text", txt); - - // Use dummy image instead of default browsers image. - // Recent Safari (~6.0.2) have a tendency to segfault when this happens, so we don't do it there. - if (e.dataTransfer.setDragImage && !safari) { - var img = elt("img", null, null, "position: fixed; left: 0; top: 0;"); - img.src = "data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw=="; - if (opera) { - img.width = img.height = 1; - cm.display.wrapper.appendChild(img); - // Force a relayout, or Opera won't use our image for some obscure reason - img._top = img.offsetTop; - } - e.dataTransfer.setDragImage(img, 0, 0); - if (opera) img.parentNode.removeChild(img); - } - } - - function setScrollTop(cm, val) { - if (Math.abs(cm.doc.scrollTop - val) < 2) return; - cm.doc.scrollTop = val; - if (!gecko) updateDisplay(cm, [], val); - if (cm.display.scroller.scrollTop != val) cm.display.scroller.scrollTop = val; - if (cm.display.scrollbarV.scrollTop != val) cm.display.scrollbarV.scrollTop = val; - if (gecko) updateDisplay(cm, []); - startWorker(cm, 100); - } - function setScrollLeft(cm, val, isScroller) { - if (isScroller ? val == cm.doc.scrollLeft : Math.abs(cm.doc.scrollLeft - val) < 2) return; - val = Math.min(val, cm.display.scroller.scrollWidth - cm.display.scroller.clientWidth); - cm.doc.scrollLeft = val; - alignHorizontally(cm); - if (cm.display.scroller.scrollLeft != val) cm.display.scroller.scrollLeft = val; - if (cm.display.scrollbarH.scrollLeft != val) cm.display.scrollbarH.scrollLeft = val; - } - - // Since the delta values reported on mouse wheel events are - // unstandardized between browsers and even browser versions, and - // generally horribly unpredictable, this code starts by measuring - // the scroll effect that the first few mouse wheel events have, - // and, from that, detects the way it can convert deltas to pixel - // offsets afterwards. - // - // The reason we want to know the amount a wheel event will scroll - // is that it gives us a chance to update the display before the - // actual scrolling happens, reducing flickering. - - var wheelSamples = 0, wheelPixelsPerUnit = null; - // Fill in a browser-detected starting value on browsers where we - // know one. These don't have to be accurate -- the result of them - // being wrong would just be a slight flicker on the first wheel - // scroll (if it is large enough). - if (ie) wheelPixelsPerUnit = -.53; - else if (gecko) wheelPixelsPerUnit = 15; - else if (chrome) wheelPixelsPerUnit = -.7; - else if (safari) wheelPixelsPerUnit = -1/3; - - function onScrollWheel(cm, e) { - var dx = e.wheelDeltaX, dy = e.wheelDeltaY; - if (dx == null && e.detail && e.axis == e.HORIZONTAL_AXIS) dx = e.detail; - if (dy == null && e.detail && e.axis == e.VERTICAL_AXIS) dy = e.detail; - else if (dy == null) dy = e.wheelDelta; - - var display = cm.display, scroll = display.scroller; - // Quit if there's nothing to scroll here - if (!(dx && scroll.scrollWidth > scroll.clientWidth || - dy && scroll.scrollHeight > scroll.clientHeight)) return; - - // Webkit browsers on OS X abort momentum scrolls when the target - // of the scroll event is removed from the scrollable element. - // This hack (see related code in patchDisplay) makes sure the - // element is kept around. - if (dy && mac && webkit) { - for (var cur = e.target; cur != scroll; cur = cur.parentNode) { - if (cur.lineObj) { - cm.display.currentWheelTarget = cur; - break; - } - } - } - - // On some browsers, horizontal scrolling will cause redraws to - // happen before the gutter has been realigned, causing it to - // wriggle around in a most unseemly way. When we have an - // estimated pixels/delta value, we just handle horizontal - // scrolling entirely here. It'll be slightly off from native, but - // better than glitching out. - if (dx && !gecko && !opera && wheelPixelsPerUnit != null) { - if (dy) - setScrollTop(cm, Math.max(0, Math.min(scroll.scrollTop + dy * wheelPixelsPerUnit, scroll.scrollHeight - scroll.clientHeight))); - setScrollLeft(cm, Math.max(0, Math.min(scroll.scrollLeft + dx * wheelPixelsPerUnit, scroll.scrollWidth - scroll.clientWidth))); - e_preventDefault(e); - display.wheelStartX = null; // Abort measurement, if in progress - return; - } - - if (dy && wheelPixelsPerUnit != null) { - var pixels = dy * wheelPixelsPerUnit; - var top = cm.doc.scrollTop, bot = top + display.wrapper.clientHeight; - if (pixels < 0) top = Math.max(0, top + pixels - 50); - else bot = Math.min(cm.doc.height, bot + pixels + 50); - updateDisplay(cm, [], {top: top, bottom: bot}); - } - - if (wheelSamples < 20) { - if (display.wheelStartX == null) { - display.wheelStartX = scroll.scrollLeft; display.wheelStartY = scroll.scrollTop; - display.wheelDX = dx; display.wheelDY = dy; - setTimeout(function() { - if (display.wheelStartX == null) return; - var movedX = scroll.scrollLeft - display.wheelStartX; - var movedY = scroll.scrollTop - display.wheelStartY; - var sample = (movedY && display.wheelDY && movedY / display.wheelDY) || - (movedX && display.wheelDX && movedX / display.wheelDX); - display.wheelStartX = display.wheelStartY = null; - if (!sample) return; - wheelPixelsPerUnit = (wheelPixelsPerUnit * wheelSamples + sample) / (wheelSamples + 1); - ++wheelSamples; - }, 200); - } else { - display.wheelDX += dx; display.wheelDY += dy; - } - } - } - - function doHandleBinding(cm, bound, dropShift) { - if (typeof bound == "string") { - bound = commands[bound]; - if (!bound) return false; - } - // Ensure previous input has been read, so that the handler sees a - // consistent view of the document - if (cm.display.pollingFast && readInput(cm)) cm.display.pollingFast = false; - var doc = cm.doc, prevShift = doc.sel.shift, done = false; - try { - if (isReadOnly(cm)) cm.state.suppressEdits = true; - if (dropShift) doc.sel.shift = false; - done = bound(cm) != Pass; - } finally { - doc.sel.shift = prevShift; - cm.state.suppressEdits = false; - } - return done; - } - - function allKeyMaps(cm) { - var maps = cm.state.keyMaps.slice(0); - if (cm.options.extraKeys) maps.push(cm.options.extraKeys); - maps.push(cm.options.keyMap); - return maps; - } - - var maybeTransition; - function handleKeyBinding(cm, e) { - // Handle auto keymap transitions - var startMap = getKeyMap(cm.options.keyMap), next = startMap.auto; - clearTimeout(maybeTransition); - if (next && !isModifierKey(e)) maybeTransition = setTimeout(function() { - if (getKeyMap(cm.options.keyMap) == startMap) { - cm.options.keyMap = (next.call ? next.call(null, cm) : next); - keyMapChanged(cm); - } - }, 50); - - var name = keyName(e, true), handled = false; - if (!name) return false; - var keymaps = allKeyMaps(cm); - - if (e.shiftKey) { - // First try to resolve full name (including 'Shift-'). Failing - // that, see if there is a cursor-motion command (starting with - // 'go') bound to the keyname without 'Shift-'. - handled = lookupKey("Shift-" + name, keymaps, function(b) {return doHandleBinding(cm, b, true);}) - || lookupKey(name, keymaps, function(b) { - if (typeof b == "string" ? /^go[A-Z]/.test(b) : b.motion) - return doHandleBinding(cm, b); - }); - } else { - handled = lookupKey(name, keymaps, function(b) { return doHandleBinding(cm, b); }); - } - - if (handled) { - e_preventDefault(e); - restartBlink(cm); - if (ie_lt9) { e.oldKeyCode = e.keyCode; e.keyCode = 0; } - signalLater(cm, "keyHandled", cm, name, e); - } - return handled; - } - - function handleCharBinding(cm, e, ch) { - var handled = lookupKey("'" + ch + "'", allKeyMaps(cm), - function(b) { return doHandleBinding(cm, b, true); }); - if (handled) { - e_preventDefault(e); - restartBlink(cm); - signalLater(cm, "keyHandled", cm, "'" + ch + "'", e); - } - return handled; - } - - var lastStoppedKey = null; - function onKeyDown(e) { - var cm = this; - if (!cm.state.focused) onFocus(cm); - if (signalDOMEvent(cm, e) || cm.options.onKeyEvent && cm.options.onKeyEvent(cm, addStop(e))) return; - if (ie && e.keyCode == 27) e.returnValue = false; - var code = e.keyCode; - // IE does strange things with escape. - cm.doc.sel.shift = code == 16 || e.shiftKey; - // First give onKeyEvent option a chance to handle this. - var handled = handleKeyBinding(cm, e); - if (opera) { - lastStoppedKey = handled ? code : null; - // Opera has no cut event... we try to at least catch the key combo - if (!handled && code == 88 && !hasCopyEvent && (mac ? e.metaKey : e.ctrlKey)) - cm.replaceSelection(""); - } - } - - function onKeyPress(e) { - var cm = this; - if (signalDOMEvent(cm, e) || cm.options.onKeyEvent && cm.options.onKeyEvent(cm, addStop(e))) return; - var keyCode = e.keyCode, charCode = e.charCode; - if (opera && keyCode == lastStoppedKey) {lastStoppedKey = null; e_preventDefault(e); return;} - if (((opera && (!e.which || e.which < 10)) || khtml) && handleKeyBinding(cm, e)) return; - var ch = String.fromCharCode(charCode == null ? keyCode : charCode); - if (this.options.electricChars && this.doc.mode.electricChars && - this.options.smartIndent && !isReadOnly(this) && - this.doc.mode.electricChars.indexOf(ch) > -1) - setTimeout(operation(cm, function() {indentLine(cm, cm.doc.sel.to.line, "smart");}), 75); - if (handleCharBinding(cm, e, ch)) return; - if (ie && !ie_lt9) cm.display.inputHasSelection = null; - fastPoll(cm); - } - - function onFocus(cm) { - if (cm.options.readOnly == "nocursor") return; - if (!cm.state.focused) { - signal(cm, "focus", cm); - cm.state.focused = true; - if (cm.display.wrapper.className.search(/\bCodeMirror-focused\b/) == -1) - cm.display.wrapper.className += " CodeMirror-focused"; - if (!cm.curOp) { - resetInput(cm, true); - if (webkit) setTimeout(bind(resetInput, cm, true), 0); // Issue #1730 - } - } - slowPoll(cm); - restartBlink(cm); - } - function onBlur(cm) { - if (cm.state.focused) { - signal(cm, "blur", cm); - cm.state.focused = false; - cm.display.wrapper.className = cm.display.wrapper.className.replace(" CodeMirror-focused", ""); - } - clearInterval(cm.display.blinker); - setTimeout(function() {if (!cm.state.focused) cm.doc.sel.shift = false;}, 150); - } - - var detectingSelectAll; - function onContextMenu(cm, e) { - if (signalDOMEvent(cm, e, "contextmenu")) return; - var display = cm.display, sel = cm.doc.sel; - if (eventInWidget(display, e) || contextMenuInGutter(cm, e)) return; - - var pos = posFromMouse(cm, e), scrollPos = display.scroller.scrollTop; - if (!pos || opera) return; // Opera is difficult. - - // Reset the current text selection only if the click is done outside of the selection - // and 'resetSelectionOnContextMenu' option is true. - var reset = cm.options.resetSelectionOnContextMenu; - if (reset && (posEq(sel.from, sel.to) || posLess(pos, sel.from) || !posLess(pos, sel.to))) - operation(cm, setSelection)(cm.doc, pos, pos); - - var oldCSS = display.input.style.cssText; - display.inputDiv.style.position = "absolute"; - display.input.style.cssText = "position: fixed; width: 30px; height: 30px; top: " + (e.clientY - 5) + - "px; left: " + (e.clientX - 5) + "px; z-index: 1000; background: white; outline: none;" + - "border-width: 0; outline: none; overflow: hidden; opacity: .05; -ms-opacity: .05; filter: alpha(opacity=5);"; - focusInput(cm); - resetInput(cm, true); - // Adds "Select all" to context menu in FF - if (posEq(sel.from, sel.to)) display.input.value = display.prevInput = " "; - - function prepareSelectAllHack() { - if (display.input.selectionStart != null) { - var extval = display.input.value = "\u200b" + (posEq(sel.from, sel.to) ? "" : display.input.value); - display.prevInput = "\u200b"; - display.input.selectionStart = 1; display.input.selectionEnd = extval.length; - } - } - function rehide() { - display.inputDiv.style.position = "relative"; - display.input.style.cssText = oldCSS; - if (ie_lt9) display.scrollbarV.scrollTop = display.scroller.scrollTop = scrollPos; - slowPoll(cm); - - // Try to detect the user choosing select-all - if (display.input.selectionStart != null) { - if (!ie || ie_lt9) prepareSelectAllHack(); - clearTimeout(detectingSelectAll); - var i = 0, poll = function(){ - if (display.prevInput == " " && display.input.selectionStart == 0) - operation(cm, commands.selectAll)(cm); - else if (i++ < 10) detectingSelectAll = setTimeout(poll, 500); - else resetInput(cm); - }; - detectingSelectAll = setTimeout(poll, 200); - } - } - - if (ie && !ie_lt9) prepareSelectAllHack(); - if (captureMiddleClick) { - e_stop(e); - var mouseup = function() { - off(window, "mouseup", mouseup); - setTimeout(rehide, 20); - }; - on(window, "mouseup", mouseup); - } else { - setTimeout(rehide, 50); - } - } - - // UPDATING - - var changeEnd = CodeMirror.changeEnd = function(change) { - if (!change.text) return change.to; - return Pos(change.from.line + change.text.length - 1, - lst(change.text).length + (change.text.length == 1 ? change.from.ch : 0)); - }; - - // Make sure a position will be valid after the given change. - function clipPostChange(doc, change, pos) { - if (!posLess(change.from, pos)) return clipPos(doc, pos); - var diff = (change.text.length - 1) - (change.to.line - change.from.line); - if (pos.line > change.to.line + diff) { - var preLine = pos.line - diff, lastLine = doc.first + doc.size - 1; - if (preLine > lastLine) return Pos(lastLine, getLine(doc, lastLine).text.length); - return clipToLen(pos, getLine(doc, preLine).text.length); - } - if (pos.line == change.to.line + diff) - return clipToLen(pos, lst(change.text).length + (change.text.length == 1 ? change.from.ch : 0) + - getLine(doc, change.to.line).text.length - change.to.ch); - var inside = pos.line - change.from.line; - return clipToLen(pos, change.text[inside].length + (inside ? 0 : change.from.ch)); - } - - // Hint can be null|"end"|"start"|"around"|{anchor,head} - function computeSelAfterChange(doc, change, hint) { - if (hint && typeof hint == "object") // Assumed to be {anchor, head} object - return {anchor: clipPostChange(doc, change, hint.anchor), - head: clipPostChange(doc, change, hint.head)}; - - if (hint == "start") return {anchor: change.from, head: change.from}; - - var end = changeEnd(change); - if (hint == "around") return {anchor: change.from, head: end}; - if (hint == "end") return {anchor: end, head: end}; - - // hint is null, leave the selection alone as much as possible - var adjustPos = function(pos) { - if (posLess(pos, change.from)) return pos; - if (!posLess(change.to, pos)) return end; - - var line = pos.line + change.text.length - (change.to.line - change.from.line) - 1, ch = pos.ch; - if (pos.line == change.to.line) ch += end.ch - change.to.ch; - return Pos(line, ch); - }; - return {anchor: adjustPos(doc.sel.anchor), head: adjustPos(doc.sel.head)}; - } - - function filterChange(doc, change, update) { - var obj = { - canceled: false, - from: change.from, - to: change.to, - text: change.text, - origin: change.origin, - cancel: function() { this.canceled = true; } - }; - if (update) obj.update = function(from, to, text, origin) { - if (from) this.from = clipPos(doc, from); - if (to) this.to = clipPos(doc, to); - if (text) this.text = text; - if (origin !== undefined) this.origin = origin; - }; - signal(doc, "beforeChange", doc, obj); - if (doc.cm) signal(doc.cm, "beforeChange", doc.cm, obj); - - if (obj.canceled) return null; - return {from: obj.from, to: obj.to, text: obj.text, origin: obj.origin}; - } - - // Replace the range from from to to by the strings in replacement. - // change is a {from, to, text [, origin]} object - function makeChange(doc, change, selUpdate, ignoreReadOnly) { - if (doc.cm) { - if (!doc.cm.curOp) return operation(doc.cm, makeChange)(doc, change, selUpdate, ignoreReadOnly); - if (doc.cm.state.suppressEdits) return; - } - - if (hasHandler(doc, "beforeChange") || doc.cm && hasHandler(doc.cm, "beforeChange")) { - change = filterChange(doc, change, true); - if (!change) return; - } - - // Possibly split or suppress the update based on the presence - // of read-only spans in its range. - var split = sawReadOnlySpans && !ignoreReadOnly && removeReadOnlyRanges(doc, change.from, change.to); - if (split) { - for (var i = split.length - 1; i >= 1; --i) - makeChangeNoReadonly(doc, {from: split[i].from, to: split[i].to, text: [""]}); - if (split.length) - makeChangeNoReadonly(doc, {from: split[0].from, to: split[0].to, text: change.text}, selUpdate); - } else { - makeChangeNoReadonly(doc, change, selUpdate); - } - } - - function makeChangeNoReadonly(doc, change, selUpdate) { - if (change.text.length == 1 && change.text[0] == "" && posEq(change.from, change.to)) return; - var selAfter = computeSelAfterChange(doc, change, selUpdate); - addToHistory(doc, change, selAfter, doc.cm ? doc.cm.curOp.id : NaN); - - makeChangeSingleDoc(doc, change, selAfter, stretchSpansOverChange(doc, change)); - var rebased = []; - - linkedDocs(doc, function(doc, sharedHist) { - if (!sharedHist && indexOf(rebased, doc.history) == -1) { - rebaseHist(doc.history, change); - rebased.push(doc.history); - } - makeChangeSingleDoc(doc, change, null, stretchSpansOverChange(doc, change)); - }); - } - - function makeChangeFromHistory(doc, type) { - if (doc.cm && doc.cm.state.suppressEdits) return; - - var hist = doc.history; - var event = (type == "undo" ? hist.done : hist.undone).pop(); - if (!event) return; - - var anti = {changes: [], anchorBefore: event.anchorAfter, headBefore: event.headAfter, - anchorAfter: event.anchorBefore, headAfter: event.headBefore, - generation: hist.generation}; - (type == "undo" ? hist.undone : hist.done).push(anti); - hist.generation = event.generation || ++hist.maxGeneration; - - var filter = hasHandler(doc, "beforeChange") || doc.cm && hasHandler(doc.cm, "beforeChange"); - - for (var i = event.changes.length - 1; i >= 0; --i) { - var change = event.changes[i]; - change.origin = type; - if (filter && !filterChange(doc, change, false)) { - (type == "undo" ? hist.done : hist.undone).length = 0; - return; - } - - anti.changes.push(historyChangeFromChange(doc, change)); - - var after = i ? computeSelAfterChange(doc, change, null) - : {anchor: event.anchorBefore, head: event.headBefore}; - makeChangeSingleDoc(doc, change, after, mergeOldSpans(doc, change)); - var rebased = []; - - linkedDocs(doc, function(doc, sharedHist) { - if (!sharedHist && indexOf(rebased, doc.history) == -1) { - rebaseHist(doc.history, change); - rebased.push(doc.history); - } - makeChangeSingleDoc(doc, change, null, mergeOldSpans(doc, change)); - }); - } - } - - function shiftDoc(doc, distance) { - function shiftPos(pos) {return Pos(pos.line + distance, pos.ch);} - doc.first += distance; - if (doc.cm) regChange(doc.cm, doc.first, doc.first, distance); - doc.sel.head = shiftPos(doc.sel.head); doc.sel.anchor = shiftPos(doc.sel.anchor); - doc.sel.from = shiftPos(doc.sel.from); doc.sel.to = shiftPos(doc.sel.to); - } - - function makeChangeSingleDoc(doc, change, selAfter, spans) { - if (doc.cm && !doc.cm.curOp) - return operation(doc.cm, makeChangeSingleDoc)(doc, change, selAfter, spans); - - if (change.to.line < doc.first) { - shiftDoc(doc, change.text.length - 1 - (change.to.line - change.from.line)); - return; - } - if (change.from.line > doc.lastLine()) return; - - // Clip the change to the size of this doc - if (change.from.line < doc.first) { - var shift = change.text.length - 1 - (doc.first - change.from.line); - shiftDoc(doc, shift); - change = {from: Pos(doc.first, 0), to: Pos(change.to.line + shift, change.to.ch), - text: [lst(change.text)], origin: change.origin}; - } - var last = doc.lastLine(); - if (change.to.line > last) { - change = {from: change.from, to: Pos(last, getLine(doc, last).text.length), - text: [change.text[0]], origin: change.origin}; - } - - change.removed = getBetween(doc, change.from, change.to); - - if (!selAfter) selAfter = computeSelAfterChange(doc, change, null); - if (doc.cm) makeChangeSingleDocInEditor(doc.cm, change, spans, selAfter); - else updateDoc(doc, change, spans, selAfter); - } - - function makeChangeSingleDocInEditor(cm, change, spans, selAfter) { - var doc = cm.doc, display = cm.display, from = change.from, to = change.to; - - var recomputeMaxLength = false, checkWidthStart = from.line; - if (!cm.options.lineWrapping) { - checkWidthStart = lineNo(visualLine(doc, getLine(doc, from.line))); - doc.iter(checkWidthStart, to.line + 1, function(line) { - if (line == display.maxLine) { - recomputeMaxLength = true; - return true; - } - }); - } - - if (!posLess(doc.sel.head, change.from) && !posLess(change.to, doc.sel.head)) - cm.curOp.cursorActivity = true; - - updateDoc(doc, change, spans, selAfter, estimateHeight(cm)); - - if (!cm.options.lineWrapping) { - doc.iter(checkWidthStart, from.line + change.text.length, function(line) { - var len = lineLength(doc, line); - if (len > display.maxLineLength) { - display.maxLine = line; - display.maxLineLength = len; - display.maxLineChanged = true; - recomputeMaxLength = false; - } - }); - if (recomputeMaxLength) cm.curOp.updateMaxLine = true; - } - - // Adjust frontier, schedule worker - doc.frontier = Math.min(doc.frontier, from.line); - startWorker(cm, 400); - - var lendiff = change.text.length - (to.line - from.line) - 1; - // Remember that these lines changed, for updating the display - regChange(cm, from.line, to.line + 1, lendiff); - - if (hasHandler(cm, "change")) { - var changeObj = {from: from, to: to, - text: change.text, - removed: change.removed, - origin: change.origin}; - if (cm.curOp.textChanged) { - for (var cur = cm.curOp.textChanged; cur.next; cur = cur.next) {} - cur.next = changeObj; - } else cm.curOp.textChanged = changeObj; - } - } - - function replaceRange(doc, code, from, to, origin) { - if (!to) to = from; - if (posLess(to, from)) { var tmp = to; to = from; from = tmp; } - if (typeof code == "string") code = splitLines(code); - makeChange(doc, {from: from, to: to, text: code, origin: origin}, null); - } - - // POSITION OBJECT - - function Pos(line, ch) { - if (!(this instanceof Pos)) return new Pos(line, ch); - this.line = line; this.ch = ch; - } - CodeMirror.Pos = Pos; - - function posEq(a, b) {return a.line == b.line && a.ch == b.ch;} - function posLess(a, b) {return a.line < b.line || (a.line == b.line && a.ch < b.ch);} - function copyPos(x) {return Pos(x.line, x.ch);} - - // SELECTION - - function clipLine(doc, n) {return Math.max(doc.first, Math.min(n, doc.first + doc.size - 1));} - function clipPos(doc, pos) { - if (pos.line < doc.first) return Pos(doc.first, 0); - var last = doc.first + doc.size - 1; - if (pos.line > last) return Pos(last, getLine(doc, last).text.length); - return clipToLen(pos, getLine(doc, pos.line).text.length); - } - function clipToLen(pos, linelen) { - var ch = pos.ch; - if (ch == null || ch > linelen) return Pos(pos.line, linelen); - else if (ch < 0) return Pos(pos.line, 0); - else return pos; - } - function isLine(doc, l) {return l >= doc.first && l < doc.first + doc.size;} - - // If shift is held, this will move the selection anchor. Otherwise, - // it'll set the whole selection. - function extendSelection(doc, pos, other, bias) { - if (doc.sel.shift || doc.sel.extend) { - var anchor = doc.sel.anchor; - if (other) { - var posBefore = posLess(pos, anchor); - if (posBefore != posLess(other, anchor)) { - anchor = pos; - pos = other; - } else if (posBefore != posLess(pos, other)) { - pos = other; - } - } - setSelection(doc, anchor, pos, bias); - } else { - setSelection(doc, pos, other || pos, bias); - } - if (doc.cm) doc.cm.curOp.userSelChange = true; - } - - function filterSelectionChange(doc, anchor, head) { - var obj = {anchor: anchor, head: head}; - signal(doc, "beforeSelectionChange", doc, obj); - if (doc.cm) signal(doc.cm, "beforeSelectionChange", doc.cm, obj); - obj.anchor = clipPos(doc, obj.anchor); obj.head = clipPos(doc, obj.head); - return obj; - } - - // Update the selection. Last two args are only used by - // updateDoc, since they have to be expressed in the line - // numbers before the update. - function setSelection(doc, anchor, head, bias, checkAtomic) { - if (!checkAtomic && hasHandler(doc, "beforeSelectionChange") || doc.cm && hasHandler(doc.cm, "beforeSelectionChange")) { - var filtered = filterSelectionChange(doc, anchor, head); - head = filtered.head; - anchor = filtered.anchor; - } - - var sel = doc.sel; - sel.goalColumn = null; - if (bias == null) bias = posLess(head, sel.head) ? -1 : 1; - // Skip over atomic spans. - if (checkAtomic || !posEq(anchor, sel.anchor)) - anchor = skipAtomic(doc, anchor, bias, checkAtomic != "push"); - if (checkAtomic || !posEq(head, sel.head)) - head = skipAtomic(doc, head, bias, checkAtomic != "push"); - - if (posEq(sel.anchor, anchor) && posEq(sel.head, head)) return; - - sel.anchor = anchor; sel.head = head; - var inv = posLess(head, anchor); - sel.from = inv ? head : anchor; - sel.to = inv ? anchor : head; - - if (doc.cm) - doc.cm.curOp.updateInput = doc.cm.curOp.selectionChanged = - doc.cm.curOp.cursorActivity = true; - - signalLater(doc, "cursorActivity", doc); - } - - function reCheckSelection(cm) { - setSelection(cm.doc, cm.doc.sel.from, cm.doc.sel.to, null, "push"); - } - - function skipAtomic(doc, pos, bias, mayClear) { - var flipped = false, curPos = pos; - var dir = bias || 1; - doc.cantEdit = false; - search: for (;;) { - var line = getLine(doc, curPos.line); - if (line.markedSpans) { - for (var i = 0; i < line.markedSpans.length; ++i) { - var sp = line.markedSpans[i], m = sp.marker; - if ((sp.from == null || (m.inclusiveLeft ? sp.from <= curPos.ch : sp.from < curPos.ch)) && - (sp.to == null || (m.inclusiveRight ? sp.to >= curPos.ch : sp.to > curPos.ch))) { - if (mayClear) { - signal(m, "beforeCursorEnter"); - if (m.explicitlyCleared) { - if (!line.markedSpans) break; - else {--i; continue;} - } - } - if (!m.atomic) continue; - var newPos = m.find()[dir < 0 ? "from" : "to"]; - if (posEq(newPos, curPos)) { - newPos.ch += dir; - if (newPos.ch < 0) { - if (newPos.line > doc.first) newPos = clipPos(doc, Pos(newPos.line - 1)); - else newPos = null; - } else if (newPos.ch > line.text.length) { - if (newPos.line < doc.first + doc.size - 1) newPos = Pos(newPos.line + 1, 0); - else newPos = null; - } - if (!newPos) { - if (flipped) { - // Driven in a corner -- no valid cursor position found at all - // -- try again *with* clearing, if we didn't already - if (!mayClear) return skipAtomic(doc, pos, bias, true); - // Otherwise, turn off editing until further notice, and return the start of the doc - doc.cantEdit = true; - return Pos(doc.first, 0); - } - flipped = true; newPos = pos; dir = -dir; - } - } - curPos = newPos; - continue search; - } - } - } - return curPos; - } - } - - // SCROLLING - - function scrollCursorIntoView(cm) { - var coords = scrollPosIntoView(cm, cm.doc.sel.head, null, cm.options.cursorScrollMargin); - if (!cm.state.focused) return; - var display = cm.display, box = getRect(display.sizer), doScroll = null; - if (coords.top + box.top < 0) doScroll = true; - else if (coords.bottom + box.top > (window.innerHeight || document.documentElement.clientHeight)) doScroll = false; - if (doScroll != null && !phantom) { - var hidden = display.cursor.style.display == "none"; - if (hidden) { - display.cursor.style.display = ""; - display.cursor.style.left = coords.left + "px"; - display.cursor.style.top = (coords.top - display.viewOffset) + "px"; - } - display.cursor.scrollIntoView(doScroll); - if (hidden) display.cursor.style.display = "none"; - } - } - - function scrollPosIntoView(cm, pos, end, margin) { - if (margin == null) margin = 0; - for (;;) { - var changed = false, coords = cursorCoords(cm, pos); - var endCoords = !end || end == pos ? coords : cursorCoords(cm, end); - var scrollPos = calculateScrollPos(cm, Math.min(coords.left, endCoords.left), - Math.min(coords.top, endCoords.top) - margin, - Math.max(coords.left, endCoords.left), - Math.max(coords.bottom, endCoords.bottom) + margin); - var startTop = cm.doc.scrollTop, startLeft = cm.doc.scrollLeft; - if (scrollPos.scrollTop != null) { - setScrollTop(cm, scrollPos.scrollTop); - if (Math.abs(cm.doc.scrollTop - startTop) > 1) changed = true; - } - if (scrollPos.scrollLeft != null) { - setScrollLeft(cm, scrollPos.scrollLeft); - if (Math.abs(cm.doc.scrollLeft - startLeft) > 1) changed = true; - } - if (!changed) return coords; - } - } - - function scrollIntoView(cm, x1, y1, x2, y2) { - var scrollPos = calculateScrollPos(cm, x1, y1, x2, y2); - if (scrollPos.scrollTop != null) setScrollTop(cm, scrollPos.scrollTop); - if (scrollPos.scrollLeft != null) setScrollLeft(cm, scrollPos.scrollLeft); - } - - function calculateScrollPos(cm, x1, y1, x2, y2) { - var display = cm.display, snapMargin = textHeight(cm.display); - if (y1 < 0) y1 = 0; - var screen = display.scroller.clientHeight - scrollerCutOff, screentop = display.scroller.scrollTop, result = {}; - var docBottom = cm.doc.height + paddingVert(display); - var atTop = y1 < snapMargin, atBottom = y2 > docBottom - snapMargin; - if (y1 < screentop) { - result.scrollTop = atTop ? 0 : y1; - } else if (y2 > screentop + screen) { - var newTop = Math.min(y1, (atBottom ? docBottom : y2) - screen); - if (newTop != screentop) result.scrollTop = newTop; - } - - var screenw = display.scroller.clientWidth - scrollerCutOff, screenleft = display.scroller.scrollLeft; - x1 += display.gutters.offsetWidth; x2 += display.gutters.offsetWidth; - var gutterw = display.gutters.offsetWidth; - var atLeft = x1 < gutterw + 10; - if (x1 < screenleft + gutterw || atLeft) { - if (atLeft) x1 = 0; - result.scrollLeft = Math.max(0, x1 - 10 - gutterw); - } else if (x2 > screenw + screenleft - 3) { - result.scrollLeft = x2 + 10 - screenw; - } - return result; - } - - function updateScrollPos(cm, left, top) { - cm.curOp.updateScrollPos = {scrollLeft: left == null ? cm.doc.scrollLeft : left, - scrollTop: top == null ? cm.doc.scrollTop : top}; - } - - function addToScrollPos(cm, left, top) { - var pos = cm.curOp.updateScrollPos || (cm.curOp.updateScrollPos = {scrollLeft: cm.doc.scrollLeft, scrollTop: cm.doc.scrollTop}); - var scroll = cm.display.scroller; - pos.scrollTop = Math.max(0, Math.min(scroll.scrollHeight - scroll.clientHeight, pos.scrollTop + top)); - pos.scrollLeft = Math.max(0, Math.min(scroll.scrollWidth - scroll.clientWidth, pos.scrollLeft + left)); - } - - // API UTILITIES - - function indentLine(cm, n, how, aggressive) { - var doc = cm.doc; - if (how == null) how = "add"; - if (how == "smart") { - if (!cm.doc.mode.indent) how = "prev"; - else var state = getStateBefore(cm, n); - } - - var tabSize = cm.options.tabSize; - var line = getLine(doc, n), curSpace = countColumn(line.text, null, tabSize); - var curSpaceString = line.text.match(/^\s*/)[0], indentation; - if (how == "smart") { - indentation = cm.doc.mode.indent(state, line.text.slice(curSpaceString.length), line.text); - if (indentation == Pass) { - if (!aggressive) return; - how = "prev"; - } - } - if (how == "prev") { - if (n > doc.first) indentation = countColumn(getLine(doc, n-1).text, null, tabSize); - else indentation = 0; - } else if (how == "add") { - indentation = curSpace + cm.options.indentUnit; - } else if (how == "subtract") { - indentation = curSpace - cm.options.indentUnit; - } else if (typeof how == "number") { - indentation = curSpace + how; - } - indentation = Math.max(0, indentation); - - var indentString = "", pos = 0; - if (cm.options.indentWithTabs) - for (var i = Math.floor(indentation / tabSize); i; --i) {pos += tabSize; indentString += "\t";} - if (pos < indentation) indentString += spaceStr(indentation - pos); - - if (indentString != curSpaceString) - replaceRange(cm.doc, indentString, Pos(n, 0), Pos(n, curSpaceString.length), "+input"); - else if (doc.sel.head.line == n && doc.sel.head.ch < curSpaceString.length) - setSelection(doc, Pos(n, curSpaceString.length), Pos(n, curSpaceString.length), 1); - line.stateAfter = null; - } - - function changeLine(cm, handle, op) { - var no = handle, line = handle, doc = cm.doc; - if (typeof handle == "number") line = getLine(doc, clipLine(doc, handle)); - else no = lineNo(handle); - if (no == null) return null; - if (op(line, no)) regChange(cm, no, no + 1); - else return null; - return line; - } - - function findPosH(doc, pos, dir, unit, visually) { - var line = pos.line, ch = pos.ch, origDir = dir; - var lineObj = getLine(doc, line); - var possible = true; - function findNextLine() { - var l = line + dir; - if (l < doc.first || l >= doc.first + doc.size) return (possible = false); - line = l; - return lineObj = getLine(doc, l); - } - function moveOnce(boundToLine) { - var next = (visually ? moveVisually : moveLogically)(lineObj, ch, dir, true); - if (next == null) { - if (!boundToLine && findNextLine()) { - if (visually) ch = (dir < 0 ? lineRight : lineLeft)(lineObj); - else ch = dir < 0 ? lineObj.text.length : 0; - } else return (possible = false); - } else ch = next; - return true; - } - - if (unit == "char") moveOnce(); - else if (unit == "column") moveOnce(true); - else if (unit == "word" || unit == "group") { - var sawType = null, group = unit == "group"; - for (var first = true;; first = false) { - if (dir < 0 && !moveOnce(!first)) break; - var cur = lineObj.text.charAt(ch) || "\n"; - var type = isWordChar(cur) ? "w" - : !group ? null - : /\s/.test(cur) ? null - : "p"; - if (sawType && sawType != type) { - if (dir < 0) {dir = 1; moveOnce();} - break; - } - if (type) sawType = type; - if (dir > 0 && !moveOnce(!first)) break; - } - } - var result = skipAtomic(doc, Pos(line, ch), origDir, true); - if (!possible) result.hitSide = true; - return result; - } - - function findPosV(cm, pos, dir, unit) { - var doc = cm.doc, x = pos.left, y; - if (unit == "page") { - var pageSize = Math.min(cm.display.wrapper.clientHeight, window.innerHeight || document.documentElement.clientHeight); - y = pos.top + dir * (pageSize - (dir < 0 ? 1.5 : .5) * textHeight(cm.display)); - } else if (unit == "line") { - y = dir > 0 ? pos.bottom + 3 : pos.top - 3; - } - for (;;) { - var target = coordsChar(cm, x, y); - if (!target.outside) break; - if (dir < 0 ? y <= 0 : y >= doc.height) { target.hitSide = true; break; } - y += dir * 5; - } - return target; - } - - function findWordAt(line, pos) { - var start = pos.ch, end = pos.ch; - if (line) { - if ((pos.xRel < 0 || end == line.length) && start) --start; else ++end; - var startChar = line.charAt(start); - var check = isWordChar(startChar) ? isWordChar - : /\s/.test(startChar) ? function(ch) {return /\s/.test(ch);} - : function(ch) {return !/\s/.test(ch) && !isWordChar(ch);}; - while (start > 0 && check(line.charAt(start - 1))) --start; - while (end < line.length && check(line.charAt(end))) ++end; - } - return {from: Pos(pos.line, start), to: Pos(pos.line, end)}; - } - - function selectLine(cm, line) { - extendSelection(cm.doc, Pos(line, 0), clipPos(cm.doc, Pos(line + 1, 0))); - } - - // PROTOTYPE - - // The publicly visible API. Note that operation(null, f) means - // 'wrap f in an operation, performed on its `this` parameter' - - CodeMirror.prototype = { - constructor: CodeMirror, - focus: function(){window.focus(); focusInput(this); fastPoll(this);}, - - setOption: function(option, value) { - var options = this.options, old = options[option]; - if (options[option] == value && option != "mode") return; - options[option] = value; - if (optionHandlers.hasOwnProperty(option)) - operation(this, optionHandlers[option])(this, value, old); - }, - - getOption: function(option) {return this.options[option];}, - getDoc: function() {return this.doc;}, - - addKeyMap: function(map, bottom) { - this.state.keyMaps[bottom ? "push" : "unshift"](map); - }, - removeKeyMap: function(map) { - var maps = this.state.keyMaps; - for (var i = 0; i < maps.length; ++i) - if (maps[i] == map || (typeof maps[i] != "string" && maps[i].name == map)) { - maps.splice(i, 1); - return true; - } - }, - - addOverlay: operation(null, function(spec, options) { - var mode = spec.token ? spec : CodeMirror.getMode(this.options, spec); - if (mode.startState) throw new Error("Overlays may not be stateful."); - this.state.overlays.push({mode: mode, modeSpec: spec, opaque: options && options.opaque}); - this.state.modeGen++; - regChange(this); - }), - removeOverlay: operation(null, function(spec) { - var overlays = this.state.overlays; - for (var i = 0; i < overlays.length; ++i) { - var cur = overlays[i].modeSpec; - if (cur == spec || typeof spec == "string" && cur.name == spec) { - overlays.splice(i, 1); - this.state.modeGen++; - regChange(this); - return; - } - } - }), - - indentLine: operation(null, function(n, dir, aggressive) { - if (typeof dir != "string" && typeof dir != "number") { - if (dir == null) dir = this.options.smartIndent ? "smart" : "prev"; - else dir = dir ? "add" : "subtract"; - } - if (isLine(this.doc, n)) indentLine(this, n, dir, aggressive); - }), - indentSelection: operation(null, function(how) { - var sel = this.doc.sel; - if (posEq(sel.from, sel.to)) return indentLine(this, sel.from.line, how); - var e = sel.to.line - (sel.to.ch ? 0 : 1); - for (var i = sel.from.line; i <= e; ++i) indentLine(this, i, how); - }), - - // Fetch the parser token for a given character. Useful for hacks - // that want to inspect the mode state (say, for completion). - getTokenAt: function(pos, precise) { - var doc = this.doc; - pos = clipPos(doc, pos); - var state = getStateBefore(this, pos.line, precise), mode = this.doc.mode; - var line = getLine(doc, pos.line); - var stream = new StringStream(line.text, this.options.tabSize); - while (stream.pos < pos.ch && !stream.eol()) { - stream.start = stream.pos; - var style = mode.token(stream, state); - } - return {start: stream.start, - end: stream.pos, - string: stream.current(), - className: style || null, // Deprecated, use 'type' instead - type: style || null, - state: state}; - }, - - getTokenTypeAt: function(pos) { - pos = clipPos(this.doc, pos); - var styles = getLineStyles(this, getLine(this.doc, pos.line)); - var before = 0, after = (styles.length - 1) / 2, ch = pos.ch; - if (ch == 0) return styles[2]; - for (;;) { - var mid = (before + after) >> 1; - if ((mid ? styles[mid * 2 - 1] : 0) >= ch) after = mid; - else if (styles[mid * 2 + 1] < ch) before = mid + 1; - else return styles[mid * 2 + 2]; - } - }, - - getModeAt: function(pos) { - var mode = this.doc.mode; - if (!mode.innerMode) return mode; - return CodeMirror.innerMode(mode, this.getTokenAt(pos).state).mode; - }, - - getHelper: function(pos, type) { - if (!helpers.hasOwnProperty(type)) return; - var help = helpers[type], mode = this.getModeAt(pos); - return mode[type] && help[mode[type]] || - mode.helperType && help[mode.helperType] || - help[mode.name]; - }, - - getStateAfter: function(line, precise) { - var doc = this.doc; - line = clipLine(doc, line == null ? doc.first + doc.size - 1: line); - return getStateBefore(this, line + 1, precise); - }, - - cursorCoords: function(start, mode) { - var pos, sel = this.doc.sel; - if (start == null) pos = sel.head; - else if (typeof start == "object") pos = clipPos(this.doc, start); - else pos = start ? sel.from : sel.to; - return cursorCoords(this, pos, mode || "page"); - }, - - charCoords: function(pos, mode) { - return charCoords(this, clipPos(this.doc, pos), mode || "page"); - }, - - coordsChar: function(coords, mode) { - coords = fromCoordSystem(this, coords, mode || "page"); - return coordsChar(this, coords.left, coords.top); - }, - - lineAtHeight: function(height, mode) { - height = fromCoordSystem(this, {top: height, left: 0}, mode || "page").top; - return lineAtHeight(this.doc, height + this.display.viewOffset); - }, - heightAtLine: function(line, mode) { - var end = false, last = this.doc.first + this.doc.size - 1; - if (line < this.doc.first) line = this.doc.first; - else if (line > last) { line = last; end = true; } - var lineObj = getLine(this.doc, line); - return intoCoordSystem(this, getLine(this.doc, line), {top: 0, left: 0}, mode || "page").top + - (end ? lineObj.height : 0); - }, - - defaultTextHeight: function() { return textHeight(this.display); }, - defaultCharWidth: function() { return charWidth(this.display); }, - - setGutterMarker: operation(null, function(line, gutterID, value) { - return changeLine(this, line, function(line) { - var markers = line.gutterMarkers || (line.gutterMarkers = {}); - markers[gutterID] = value; - if (!value && isEmpty(markers)) line.gutterMarkers = null; - return true; - }); - }), - - clearGutter: operation(null, function(gutterID) { - var cm = this, doc = cm.doc, i = doc.first; - doc.iter(function(line) { - if (line.gutterMarkers && line.gutterMarkers[gutterID]) { - line.gutterMarkers[gutterID] = null; - regChange(cm, i, i + 1); - if (isEmpty(line.gutterMarkers)) line.gutterMarkers = null; - } - ++i; - }); - }), - - addLineClass: operation(null, function(handle, where, cls) { - return changeLine(this, handle, function(line) { - var prop = where == "text" ? "textClass" : where == "background" ? "bgClass" : "wrapClass"; - if (!line[prop]) line[prop] = cls; - else if (new RegExp("(?:^|\\s)" + cls + "(?:$|\\s)").test(line[prop])) return false; - else line[prop] += " " + cls; - return true; - }); - }), - - removeLineClass: operation(null, function(handle, where, cls) { - return changeLine(this, handle, function(line) { - var prop = where == "text" ? "textClass" : where == "background" ? "bgClass" : "wrapClass"; - var cur = line[prop]; - if (!cur) return false; - else if (cls == null) line[prop] = null; - else { - var found = cur.match(new RegExp("(?:^|\\s+)" + cls + "(?:$|\\s+)")); - if (!found) return false; - var end = found.index + found[0].length; - line[prop] = cur.slice(0, found.index) + (!found.index || end == cur.length ? "" : " ") + cur.slice(end) || null; - } - return true; - }); - }), - - addLineWidget: operation(null, function(handle, node, options) { - return addLineWidget(this, handle, node, options); - }), - - removeLineWidget: function(widget) { widget.clear(); }, - - lineInfo: function(line) { - if (typeof line == "number") { - if (!isLine(this.doc, line)) return null; - var n = line; - line = getLine(this.doc, line); - if (!line) return null; - } else { - var n = lineNo(line); - if (n == null) return null; - } - return {line: n, handle: line, text: line.text, gutterMarkers: line.gutterMarkers, - textClass: line.textClass, bgClass: line.bgClass, wrapClass: line.wrapClass, - widgets: line.widgets}; - }, - - getViewport: function() { return {from: this.display.showingFrom, to: this.display.showingTo};}, - - addWidget: function(pos, node, scroll, vert, horiz) { - var display = this.display; - pos = cursorCoords(this, clipPos(this.doc, pos)); - var top = pos.bottom, left = pos.left; - node.style.position = "absolute"; - display.sizer.appendChild(node); - if (vert == "over") { - top = pos.top; - } else if (vert == "above" || vert == "near") { - var vspace = Math.max(display.wrapper.clientHeight, this.doc.height), - hspace = Math.max(display.sizer.clientWidth, display.lineSpace.clientWidth); - // Default to positioning above (if specified and possible); otherwise default to positioning below - if ((vert == 'above' || pos.bottom + node.offsetHeight > vspace) && pos.top > node.offsetHeight) - top = pos.top - node.offsetHeight; - else if (pos.bottom + node.offsetHeight <= vspace) - top = pos.bottom; - if (left + node.offsetWidth > hspace) - left = hspace - node.offsetWidth; - } - node.style.top = top + "px"; - node.style.left = node.style.right = ""; - if (horiz == "right") { - left = display.sizer.clientWidth - node.offsetWidth; - node.style.right = "0px"; - } else { - if (horiz == "left") left = 0; - else if (horiz == "middle") left = (display.sizer.clientWidth - node.offsetWidth) / 2; - node.style.left = left + "px"; - } - if (scroll) - scrollIntoView(this, left, top, left + node.offsetWidth, top + node.offsetHeight); - }, - - triggerOnKeyDown: operation(null, onKeyDown), - - execCommand: function(cmd) {return commands[cmd](this);}, - - findPosH: function(from, amount, unit, visually) { - var dir = 1; - if (amount < 0) { dir = -1; amount = -amount; } - for (var i = 0, cur = clipPos(this.doc, from); i < amount; ++i) { - cur = findPosH(this.doc, cur, dir, unit, visually); - if (cur.hitSide) break; - } - return cur; - }, - - moveH: operation(null, function(dir, unit) { - var sel = this.doc.sel, pos; - if (sel.shift || sel.extend || posEq(sel.from, sel.to)) - pos = findPosH(this.doc, sel.head, dir, unit, this.options.rtlMoveVisually); - else - pos = dir < 0 ? sel.from : sel.to; - extendSelection(this.doc, pos, pos, dir); - }), - - deleteH: operation(null, function(dir, unit) { - var sel = this.doc.sel; - if (!posEq(sel.from, sel.to)) replaceRange(this.doc, "", sel.from, sel.to, "+delete"); - else replaceRange(this.doc, "", sel.from, findPosH(this.doc, sel.head, dir, unit, false), "+delete"); - this.curOp.userSelChange = true; - }), - - findPosV: function(from, amount, unit, goalColumn) { - var dir = 1, x = goalColumn; - if (amount < 0) { dir = -1; amount = -amount; } - for (var i = 0, cur = clipPos(this.doc, from); i < amount; ++i) { - var coords = cursorCoords(this, cur, "div"); - if (x == null) x = coords.left; - else coords.left = x; - cur = findPosV(this, coords, dir, unit); - if (cur.hitSide) break; - } - return cur; - }, - - moveV: operation(null, function(dir, unit) { - var sel = this.doc.sel; - var pos = cursorCoords(this, sel.head, "div"); - if (sel.goalColumn != null) pos.left = sel.goalColumn; - var target = findPosV(this, pos, dir, unit); - - if (unit == "page") addToScrollPos(this, 0, charCoords(this, target, "div").top - pos.top); - extendSelection(this.doc, target, target, dir); - sel.goalColumn = pos.left; - }), - - toggleOverwrite: function(value) { - if (value != null && value == this.state.overwrite) return; - if (this.state.overwrite = !this.state.overwrite) - this.display.cursor.className += " CodeMirror-overwrite"; - else - this.display.cursor.className = this.display.cursor.className.replace(" CodeMirror-overwrite", ""); - }, - hasFocus: function() { return this.state.focused; }, - - scrollTo: operation(null, function(x, y) { - updateScrollPos(this, x, y); - }), - getScrollInfo: function() { - var scroller = this.display.scroller, co = scrollerCutOff; - return {left: scroller.scrollLeft, top: scroller.scrollTop, - height: scroller.scrollHeight - co, width: scroller.scrollWidth - co, - clientHeight: scroller.clientHeight - co, clientWidth: scroller.clientWidth - co}; - }, - - scrollIntoView: operation(null, function(range, margin) { - if (range == null) range = {from: this.doc.sel.head, to: null}; - else if (typeof range == "number") range = {from: Pos(range, 0), to: null}; - else if (range.from == null) range = {from: range, to: null}; - if (!range.to) range.to = range.from; - if (!margin) margin = 0; - - var coords = range; - if (range.from.line != null) { - this.curOp.scrollToPos = {from: range.from, to: range.to, margin: margin}; - coords = {from: cursorCoords(this, range.from), - to: cursorCoords(this, range.to)}; - } - var sPos = calculateScrollPos(this, Math.min(coords.from.left, coords.to.left), - Math.min(coords.from.top, coords.to.top) - margin, - Math.max(coords.from.right, coords.to.right), - Math.max(coords.from.bottom, coords.to.bottom) + margin); - updateScrollPos(this, sPos.scrollLeft, sPos.scrollTop); - }), - - setSize: operation(null, function(width, height) { - function interpret(val) { - return typeof val == "number" || /^\d+$/.test(String(val)) ? val + "px" : val; - } - if (width != null) this.display.wrapper.style.width = interpret(width); - if (height != null) this.display.wrapper.style.height = interpret(height); - if (this.options.lineWrapping) - this.display.measureLineCache.length = this.display.measureLineCachePos = 0; - this.curOp.forceUpdate = true; - }), - - operation: function(f){return runInOp(this, f);}, - - refresh: operation(null, function() { - var badHeight = this.display.cachedTextHeight == null; - clearCaches(this); - updateScrollPos(this, this.doc.scrollLeft, this.doc.scrollTop); - regChange(this); - if (badHeight) estimateLineHeights(this); - }), - - swapDoc: operation(null, function(doc) { - var old = this.doc; - old.cm = null; - attachDoc(this, doc); - clearCaches(this); - resetInput(this, true); - updateScrollPos(this, doc.scrollLeft, doc.scrollTop); - signalLater(this, "swapDoc", this, old); - return old; - }), - - getInputField: function(){return this.display.input;}, - getWrapperElement: function(){return this.display.wrapper;}, - getScrollerElement: function(){return this.display.scroller;}, - getGutterElement: function(){return this.display.gutters;} - }; - eventMixin(CodeMirror); - - // OPTION DEFAULTS - - var optionHandlers = CodeMirror.optionHandlers = {}; - - // The default configuration options. - var defaults = CodeMirror.defaults = {}; - - function option(name, deflt, handle, notOnInit) { - CodeMirror.defaults[name] = deflt; - if (handle) optionHandlers[name] = - notOnInit ? function(cm, val, old) {if (old != Init) handle(cm, val, old);} : handle; - } - - var Init = CodeMirror.Init = {toString: function(){return "CodeMirror.Init";}}; - - // These two are, on init, called from the constructor because they - // have to be initialized before the editor can start at all. - option("value", "", function(cm, val) { - cm.setValue(val); - }, true); - option("mode", null, function(cm, val) { - cm.doc.modeOption = val; - loadMode(cm); - }, true); - - option("indentUnit", 2, loadMode, true); - option("indentWithTabs", false); - option("smartIndent", true); - option("tabSize", 4, function(cm) { - loadMode(cm); - clearCaches(cm); - regChange(cm); - }, true); - option("specialChars", /[\t\u0000-\u0019\u00ad\u200b\u2028\u2029\ufeff]/g, function(cm, val) { - cm.options.specialChars = new RegExp(val.source + (val.test("\t") ? "" : "|\t"), "g"); - cm.refresh(); - }, true); - option("specialCharPlaceholder", defaultSpecialCharPlaceholder, function(cm) {cm.refresh();}, true); - option("electricChars", true); - option("rtlMoveVisually", !windows); - option("wholeLineUpdateBefore", true); - - option("theme", "default", function(cm) { - themeChanged(cm); - guttersChanged(cm); - }, true); - option("keyMap", "default", keyMapChanged); - option("extraKeys", null); - - option("onKeyEvent", null); - option("onDragEvent", null); - - option("lineWrapping", false, wrappingChanged, true); - option("gutters", [], function(cm) { - setGuttersForLineNumbers(cm.options); - guttersChanged(cm); - }, true); - option("fixedGutter", true, function(cm, val) { - cm.display.gutters.style.left = val ? compensateForHScroll(cm.display) + "px" : "0"; - cm.refresh(); - }, true); - option("coverGutterNextToScrollbar", false, updateScrollbars, true); - option("lineNumbers", false, function(cm) { - setGuttersForLineNumbers(cm.options); - guttersChanged(cm); - }, true); - option("firstLineNumber", 1, guttersChanged, true); - option("lineNumberFormatter", function(integer) {return integer;}, guttersChanged, true); - option("showCursorWhenSelecting", false, updateSelection, true); - - option("resetSelectionOnContextMenu", true); - - option("readOnly", false, function(cm, val) { - if (val == "nocursor") { - onBlur(cm); - cm.display.input.blur(); - cm.display.disabled = true; - } else { - cm.display.disabled = false; - if (!val) resetInput(cm, true); - } - }); - option("dragDrop", true); - - option("cursorBlinkRate", 530); - option("cursorScrollMargin", 0); - option("cursorHeight", 1); - option("workTime", 100); - option("workDelay", 100); - option("flattenSpans", true); - option("pollInterval", 100); - option("undoDepth", 40, function(cm, val){cm.doc.history.undoDepth = val;}); - option("historyEventDelay", 500); - option("viewportMargin", 10, function(cm){cm.refresh();}, true); - option("maxHighlightLength", 10000, function(cm){loadMode(cm); cm.refresh();}, true); - option("crudeMeasuringFrom", 10000); - option("moveInputWithCursor", true, function(cm, val) { - if (!val) cm.display.inputDiv.style.top = cm.display.inputDiv.style.left = 0; - }); - - option("tabindex", null, function(cm, val) { - cm.display.input.tabIndex = val || ""; - }); - option("autofocus", null); - - // MODE DEFINITION AND QUERYING - - // Known modes, by name and by MIME - var modes = CodeMirror.modes = {}, mimeModes = CodeMirror.mimeModes = {}; - - CodeMirror.defineMode = function(name, mode) { - if (!CodeMirror.defaults.mode && name != "null") CodeMirror.defaults.mode = name; - if (arguments.length > 2) { - mode.dependencies = []; - for (var i = 2; i < arguments.length; ++i) mode.dependencies.push(arguments[i]); - } - modes[name] = mode; - }; - - CodeMirror.defineMIME = function(mime, spec) { - mimeModes[mime] = spec; - }; - - CodeMirror.resolveMode = function(spec) { - if (typeof spec == "string" && mimeModes.hasOwnProperty(spec)) { - spec = mimeModes[spec]; - } else if (spec && typeof spec.name == "string" && mimeModes.hasOwnProperty(spec.name)) { - var found = mimeModes[spec.name]; - spec = createObj(found, spec); - spec.name = found.name; - } else if (typeof spec == "string" && /^[\w\-]+\/[\w\-]+\+xml$/.test(spec)) { - return CodeMirror.resolveMode("application/xml"); - } - if (typeof spec == "string") return {name: spec}; - else return spec || {name: "null"}; - }; - - CodeMirror.getMode = function(options, spec) { - var spec = CodeMirror.resolveMode(spec); - var mfactory = modes[spec.name]; - if (!mfactory) return CodeMirror.getMode(options, "text/plain"); - var modeObj = mfactory(options, spec); - if (modeExtensions.hasOwnProperty(spec.name)) { - var exts = modeExtensions[spec.name]; - for (var prop in exts) { - if (!exts.hasOwnProperty(prop)) continue; - if (modeObj.hasOwnProperty(prop)) modeObj["_" + prop] = modeObj[prop]; - modeObj[prop] = exts[prop]; - } - } - modeObj.name = spec.name; - - return modeObj; - }; - - CodeMirror.defineMode("null", function() { - return {token: function(stream) {stream.skipToEnd();}}; - }); - CodeMirror.defineMIME("text/plain", "null"); - - var modeExtensions = CodeMirror.modeExtensions = {}; - CodeMirror.extendMode = function(mode, properties) { - var exts = modeExtensions.hasOwnProperty(mode) ? modeExtensions[mode] : (modeExtensions[mode] = {}); - copyObj(properties, exts); - }; - - // EXTENSIONS - - CodeMirror.defineExtension = function(name, func) { - CodeMirror.prototype[name] = func; - }; - CodeMirror.defineDocExtension = function(name, func) { - Doc.prototype[name] = func; - }; - CodeMirror.defineOption = option; - - var initHooks = []; - CodeMirror.defineInitHook = function(f) {initHooks.push(f);}; - - var helpers = CodeMirror.helpers = {}; - CodeMirror.registerHelper = function(type, name, value) { - if (!helpers.hasOwnProperty(type)) helpers[type] = CodeMirror[type] = {}; - helpers[type][name] = value; - }; - - // UTILITIES - - CodeMirror.isWordChar = isWordChar; - - // MODE STATE HANDLING - - // Utility functions for working with state. Exported because modes - // sometimes need to do this. - function copyState(mode, state) { - if (state === true) return state; - if (mode.copyState) return mode.copyState(state); - var nstate = {}; - for (var n in state) { - var val = state[n]; - if (val instanceof Array) val = val.concat([]); - nstate[n] = val; - } - return nstate; - } - CodeMirror.copyState = copyState; - - function startState(mode, a1, a2) { - return mode.startState ? mode.startState(a1, a2) : true; - } - CodeMirror.startState = startState; - - CodeMirror.innerMode = function(mode, state) { - while (mode.innerMode) { - var info = mode.innerMode(state); - if (!info || info.mode == mode) break; - state = info.state; - mode = info.mode; - } - return info || {mode: mode, state: state}; - }; - - // STANDARD COMMANDS - - var commands = CodeMirror.commands = { - selectAll: function(cm) {cm.setSelection(Pos(cm.firstLine(), 0), Pos(cm.lastLine()));}, - killLine: function(cm) { - var from = cm.getCursor(true), to = cm.getCursor(false), sel = !posEq(from, to); - if (!sel && cm.getLine(from.line).length == from.ch) - cm.replaceRange("", from, Pos(from.line + 1, 0), "+delete"); - else cm.replaceRange("", from, sel ? to : Pos(from.line), "+delete"); - }, - deleteLine: function(cm) { - var l = cm.getCursor().line; - cm.replaceRange("", Pos(l, 0), Pos(l), "+delete"); - }, - delLineLeft: function(cm) { - var cur = cm.getCursor(); - cm.replaceRange("", Pos(cur.line, 0), cur, "+delete"); - }, - undo: function(cm) {cm.undo();}, - redo: function(cm) {cm.redo();}, - goDocStart: function(cm) {cm.extendSelection(Pos(cm.firstLine(), 0));}, - goDocEnd: function(cm) {cm.extendSelection(Pos(cm.lastLine()));}, - goLineStart: function(cm) { - cm.extendSelection(lineStart(cm, cm.getCursor().line)); - }, - goLineStartSmart: function(cm) { - var cur = cm.getCursor(), start = lineStart(cm, cur.line); - var line = cm.getLineHandle(start.line); - var order = getOrder(line); - if (!order || order[0].level == 0) { - var firstNonWS = Math.max(0, line.text.search(/\S/)); - var inWS = cur.line == start.line && cur.ch <= firstNonWS && cur.ch; - cm.extendSelection(Pos(start.line, inWS ? 0 : firstNonWS)); - } else cm.extendSelection(start); - }, - goLineEnd: function(cm) { - cm.extendSelection(lineEnd(cm, cm.getCursor().line)); - }, - goLineRight: function(cm) { - var top = cm.charCoords(cm.getCursor(), "div").top + 5; - cm.extendSelection(cm.coordsChar({left: cm.display.lineDiv.offsetWidth + 100, top: top}, "div")); - }, - goLineLeft: function(cm) { - var top = cm.charCoords(cm.getCursor(), "div").top + 5; - cm.extendSelection(cm.coordsChar({left: 0, top: top}, "div")); - }, - goLineUp: function(cm) {cm.moveV(-1, "line");}, - goLineDown: function(cm) {cm.moveV(1, "line");}, - goPageUp: function(cm) {cm.moveV(-1, "page");}, - goPageDown: function(cm) {cm.moveV(1, "page");}, - goCharLeft: function(cm) {cm.moveH(-1, "char");}, - goCharRight: function(cm) {cm.moveH(1, "char");}, - goColumnLeft: function(cm) {cm.moveH(-1, "column");}, - goColumnRight: function(cm) {cm.moveH(1, "column");}, - goWordLeft: function(cm) {cm.moveH(-1, "word");}, - goGroupRight: function(cm) {cm.moveH(1, "group");}, - goGroupLeft: function(cm) {cm.moveH(-1, "group");}, - goWordRight: function(cm) {cm.moveH(1, "word");}, - delCharBefore: function(cm) {cm.deleteH(-1, "char");}, - delCharAfter: function(cm) {cm.deleteH(1, "char");}, - delWordBefore: function(cm) {cm.deleteH(-1, "word");}, - delWordAfter: function(cm) {cm.deleteH(1, "word");}, - delGroupBefore: function(cm) {cm.deleteH(-1, "group");}, - delGroupAfter: function(cm) {cm.deleteH(1, "group");}, - indentAuto: function(cm) {cm.indentSelection("smart");}, - indentMore: function(cm) {cm.indentSelection("add");}, - indentLess: function(cm) {cm.indentSelection("subtract");}, - insertTab: function(cm) {cm.replaceSelection("\t", "end", "+input");}, - defaultTab: function(cm) { - if (cm.somethingSelected()) cm.indentSelection("add"); - else cm.replaceSelection("\t", "end", "+input"); - }, - transposeChars: function(cm) { - var cur = cm.getCursor(), line = cm.getLine(cur.line); - if (cur.ch > 0 && cur.ch < line.length - 1) - cm.replaceRange(line.charAt(cur.ch) + line.charAt(cur.ch - 1), - Pos(cur.line, cur.ch - 1), Pos(cur.line, cur.ch + 1)); - }, - newlineAndIndent: function(cm) { - operation(cm, function() { - cm.replaceSelection("\n", "end", "+input"); - cm.indentLine(cm.getCursor().line, null, true); - })(); - }, - toggleOverwrite: function(cm) {cm.toggleOverwrite();} - }; - - // STANDARD KEYMAPS - - var keyMap = CodeMirror.keyMap = {}; - keyMap.basic = { - "Left": "goCharLeft", "Right": "goCharRight", "Up": "goLineUp", "Down": "goLineDown", - "End": "goLineEnd", "Home": "goLineStartSmart", "PageUp": "goPageUp", "PageDown": "goPageDown", - "Delete": "delCharAfter", "Backspace": "delCharBefore", "Shift-Backspace": "delCharBefore", - "Tab": "defaultTab", "Shift-Tab": "indentAuto", - "Enter": "newlineAndIndent", "Insert": "toggleOverwrite" - }; - // Note that the save and find-related commands aren't defined by - // default. Unknown commands are simply ignored. - keyMap.pcDefault = { - "Ctrl-A": "selectAll", "Ctrl-D": "deleteLine", "Ctrl-Z": "undo", "Shift-Ctrl-Z": "redo", "Ctrl-Y": "redo", - "Ctrl-Home": "goDocStart", "Alt-Up": "goDocStart", "Ctrl-End": "goDocEnd", "Ctrl-Down": "goDocEnd", - "Ctrl-Left": "goGroupLeft", "Ctrl-Right": "goGroupRight", "Alt-Left": "goLineStart", "Alt-Right": "goLineEnd", - "Ctrl-Backspace": "delGroupBefore", "Ctrl-Delete": "delGroupAfter", "Ctrl-S": "save", "Ctrl-F": "find", - "Ctrl-G": "findNext", "Shift-Ctrl-G": "findPrev", "Shift-Ctrl-F": "replace", "Shift-Ctrl-R": "replaceAll", - "Ctrl-[": "indentLess", "Ctrl-]": "indentMore", - fallthrough: "basic" - }; - keyMap.macDefault = { - "Cmd-A": "selectAll", "Cmd-D": "deleteLine", "Cmd-Z": "undo", "Shift-Cmd-Z": "redo", "Cmd-Y": "redo", - "Cmd-Up": "goDocStart", "Cmd-End": "goDocEnd", "Cmd-Down": "goDocEnd", "Alt-Left": "goGroupLeft", - "Alt-Right": "goGroupRight", "Cmd-Left": "goLineStart", "Cmd-Right": "goLineEnd", "Alt-Backspace": "delGroupBefore", - "Ctrl-Alt-Backspace": "delGroupAfter", "Alt-Delete": "delGroupAfter", "Cmd-S": "save", "Cmd-F": "find", - "Cmd-G": "findNext", "Shift-Cmd-G": "findPrev", "Cmd-Alt-F": "replace", "Shift-Cmd-Alt-F": "replaceAll", - "Cmd-[": "indentLess", "Cmd-]": "indentMore", "Cmd-Backspace": "delLineLeft", - fallthrough: ["basic", "emacsy"] - }; - keyMap["default"] = mac ? keyMap.macDefault : keyMap.pcDefault; - keyMap.emacsy = { - "Ctrl-F": "goCharRight", "Ctrl-B": "goCharLeft", "Ctrl-P": "goLineUp", "Ctrl-N": "goLineDown", - "Alt-F": "goWordRight", "Alt-B": "goWordLeft", "Ctrl-A": "goLineStart", "Ctrl-E": "goLineEnd", - "Ctrl-V": "goPageDown", "Shift-Ctrl-V": "goPageUp", "Ctrl-D": "delCharAfter", "Ctrl-H": "delCharBefore", - "Alt-D": "delWordAfter", "Alt-Backspace": "delWordBefore", "Ctrl-K": "killLine", "Ctrl-T": "transposeChars" - }; - - // KEYMAP DISPATCH - - function getKeyMap(val) { - if (typeof val == "string") return keyMap[val]; - else return val; - } - - function lookupKey(name, maps, handle) { - function lookup(map) { - map = getKeyMap(map); - var found = map[name]; - if (found === false) return "stop"; - if (found != null && handle(found)) return true; - if (map.nofallthrough) return "stop"; - - var fallthrough = map.fallthrough; - if (fallthrough == null) return false; - if (Object.prototype.toString.call(fallthrough) != "[object Array]") - return lookup(fallthrough); - for (var i = 0, e = fallthrough.length; i < e; ++i) { - var done = lookup(fallthrough[i]); - if (done) return done; - } - return false; - } - - for (var i = 0; i < maps.length; ++i) { - var done = lookup(maps[i]); - if (done) return done != "stop"; - } - } - function isModifierKey(event) { - var name = keyNames[event.keyCode]; - return name == "Ctrl" || name == "Alt" || name == "Shift" || name == "Mod"; - } - function keyName(event, noShift) { - if (opera && event.keyCode == 34 && event["char"]) return false; - var name = keyNames[event.keyCode]; - if (name == null || event.altGraphKey) return false; - if (event.altKey) name = "Alt-" + name; - if (flipCtrlCmd ? event.metaKey : event.ctrlKey) name = "Ctrl-" + name; - if (flipCtrlCmd ? event.ctrlKey : event.metaKey) name = "Cmd-" + name; - if (!noShift && event.shiftKey) name = "Shift-" + name; - return name; - } - CodeMirror.lookupKey = lookupKey; - CodeMirror.isModifierKey = isModifierKey; - CodeMirror.keyName = keyName; - - // FROMTEXTAREA - - CodeMirror.fromTextArea = function(textarea, options) { - if (!options) options = {}; - options.value = textarea.value; - if (!options.tabindex && textarea.tabindex) - options.tabindex = textarea.tabindex; - if (!options.placeholder && textarea.placeholder) - options.placeholder = textarea.placeholder; - // Set autofocus to true if this textarea is focused, or if it has - // autofocus and no other element is focused. - if (options.autofocus == null) { - var hasFocus = document.body; - // doc.activeElement occasionally throws on IE - try { hasFocus = document.activeElement; } catch(e) {} - options.autofocus = hasFocus == textarea || - textarea.getAttribute("autofocus") != null && hasFocus == document.body; - } - - function save() {textarea.value = cm.getValue();} - if (textarea.form) { - on(textarea.form, "submit", save); - // Deplorable hack to make the submit method do the right thing. - if (!options.leaveSubmitMethodAlone) { - var form = textarea.form, realSubmit = form.submit; - try { - var wrappedSubmit = form.submit = function() { - save(); - form.submit = realSubmit; - form.submit(); - form.submit = wrappedSubmit; - }; - } catch(e) {} - } - } - - textarea.style.display = "none"; - var cm = CodeMirror(function(node) { - textarea.parentNode.insertBefore(node, textarea.nextSibling); - }, options); - cm.save = save; - cm.getTextArea = function() { return textarea; }; - cm.toTextArea = function() { - save(); - textarea.parentNode.removeChild(cm.getWrapperElement()); - textarea.style.display = ""; - if (textarea.form) { - off(textarea.form, "submit", save); - if (typeof textarea.form.submit == "function") - textarea.form.submit = realSubmit; - } - }; - return cm; - }; - - // STRING STREAM - - // Fed to the mode parsers, provides helper functions to make - // parsers more succinct. - - // The character stream used by a mode's parser. - function StringStream(string, tabSize) { - this.pos = this.start = 0; - this.string = string; - this.tabSize = tabSize || 8; - this.lastColumnPos = this.lastColumnValue = 0; - } - - StringStream.prototype = { - eol: function() {return this.pos >= this.string.length;}, - sol: function() {return this.pos == 0;}, - peek: function() {return this.string.charAt(this.pos) || undefined;}, - next: function() { - if (this.pos < this.string.length) - return this.string.charAt(this.pos++); - }, - eat: function(match) { - var ch = this.string.charAt(this.pos); - if (typeof match == "string") var ok = ch == match; - else var ok = ch && (match.test ? match.test(ch) : match(ch)); - if (ok) {++this.pos; return ch;} - }, - eatWhile: function(match) { - var start = this.pos; - while (this.eat(match)){} - return this.pos > start; - }, - eatSpace: function() { - var start = this.pos; - while (/[\s\u00a0]/.test(this.string.charAt(this.pos))) ++this.pos; - return this.pos > start; - }, - skipToEnd: function() {this.pos = this.string.length;}, - skipTo: function(ch) { - var found = this.string.indexOf(ch, this.pos); - if (found > -1) {this.pos = found; return true;} - }, - backUp: function(n) {this.pos -= n;}, - column: function() { - if (this.lastColumnPos < this.start) { - this.lastColumnValue = countColumn(this.string, this.start, this.tabSize, this.lastColumnPos, this.lastColumnValue); - this.lastColumnPos = this.start; - } - return this.lastColumnValue; - }, - indentation: function() {return countColumn(this.string, null, this.tabSize);}, - match: function(pattern, consume, caseInsensitive) { - if (typeof pattern == "string") { - var cased = function(str) {return caseInsensitive ? str.toLowerCase() : str;}; - var substr = this.string.substr(this.pos, pattern.length); - if (cased(substr) == cased(pattern)) { - if (consume !== false) this.pos += pattern.length; - return true; - } - } else { - var match = this.string.slice(this.pos).match(pattern); - if (match && match.index > 0) return null; - if (match && consume !== false) this.pos += match[0].length; - return match; - } - }, - current: function(){return this.string.slice(this.start, this.pos);} - }; - CodeMirror.StringStream = StringStream; - - // TEXTMARKERS - - function TextMarker(doc, type) { - this.lines = []; - this.type = type; - this.doc = doc; - } - CodeMirror.TextMarker = TextMarker; - eventMixin(TextMarker); - - TextMarker.prototype.clear = function() { - if (this.explicitlyCleared) return; - var cm = this.doc.cm, withOp = cm && !cm.curOp; - if (withOp) startOperation(cm); - if (hasHandler(this, "clear")) { - var found = this.find(); - if (found) signalLater(this, "clear", found.from, found.to); - } - var min = null, max = null; - for (var i = 0; i < this.lines.length; ++i) { - var line = this.lines[i]; - var span = getMarkedSpanFor(line.markedSpans, this); - if (span.to != null) max = lineNo(line); - line.markedSpans = removeMarkedSpan(line.markedSpans, span); - if (span.from != null) - min = lineNo(line); - else if (this.collapsed && !lineIsHidden(this.doc, line) && cm) - updateLineHeight(line, textHeight(cm.display)); - } - if (cm && this.collapsed && !cm.options.lineWrapping) for (var i = 0; i < this.lines.length; ++i) { - var visual = visualLine(cm.doc, this.lines[i]), len = lineLength(cm.doc, visual); - if (len > cm.display.maxLineLength) { - cm.display.maxLine = visual; - cm.display.maxLineLength = len; - cm.display.maxLineChanged = true; - } - } - - if (min != null && cm) regChange(cm, min, max + 1); - this.lines.length = 0; - this.explicitlyCleared = true; - if (this.atomic && this.doc.cantEdit) { - this.doc.cantEdit = false; - if (cm) reCheckSelection(cm); - } - if (withOp) endOperation(cm); - }; - - TextMarker.prototype.find = function() { - var from, to; - for (var i = 0; i < this.lines.length; ++i) { - var line = this.lines[i]; - var span = getMarkedSpanFor(line.markedSpans, this); - if (span.from != null || span.to != null) { - var found = lineNo(line); - if (span.from != null) from = Pos(found, span.from); - if (span.to != null) to = Pos(found, span.to); - } - } - if (this.type == "bookmark") return from; - return from && {from: from, to: to}; - }; - - TextMarker.prototype.changed = function() { - var pos = this.find(), cm = this.doc.cm; - if (!pos || !cm) return; - if (this.type != "bookmark") pos = pos.from; - var line = getLine(this.doc, pos.line); - clearCachedMeasurement(cm, line); - if (pos.line >= cm.display.showingFrom && pos.line < cm.display.showingTo) { - for (var node = cm.display.lineDiv.firstChild; node; node = node.nextSibling) if (node.lineObj == line) { - if (node.offsetHeight != line.height) updateLineHeight(line, node.offsetHeight); - break; - } - runInOp(cm, function() { - cm.curOp.selectionChanged = cm.curOp.forceUpdate = cm.curOp.updateMaxLine = true; - }); - } - }; - - TextMarker.prototype.attachLine = function(line) { - if (!this.lines.length && this.doc.cm) { - var op = this.doc.cm.curOp; - if (!op.maybeHiddenMarkers || indexOf(op.maybeHiddenMarkers, this) == -1) - (op.maybeUnhiddenMarkers || (op.maybeUnhiddenMarkers = [])).push(this); - } - this.lines.push(line); - }; - TextMarker.prototype.detachLine = function(line) { - this.lines.splice(indexOf(this.lines, line), 1); - if (!this.lines.length && this.doc.cm) { - var op = this.doc.cm.curOp; - (op.maybeHiddenMarkers || (op.maybeHiddenMarkers = [])).push(this); - } - }; - - function markText(doc, from, to, options, type) { - if (options && options.shared) return markTextShared(doc, from, to, options, type); - if (doc.cm && !doc.cm.curOp) return operation(doc.cm, markText)(doc, from, to, options, type); - - var marker = new TextMarker(doc, type); - if (posLess(to, from) || posEq(from, to) && type == "range" && - !(options.inclusiveLeft && options.inclusiveRight)) - return marker; - if (options) copyObj(options, marker); - if (marker.replacedWith) { - marker.collapsed = true; - marker.replacedWith = elt("span", [marker.replacedWith], "CodeMirror-widget"); - if (!options.handleMouseEvents) marker.replacedWith.ignoreEvents = true; - } - if (marker.collapsed) sawCollapsedSpans = true; - - if (marker.addToHistory) - addToHistory(doc, {from: from, to: to, origin: "markText"}, - {head: doc.sel.head, anchor: doc.sel.anchor}, NaN); - - var curLine = from.line, size = 0, collapsedAtStart, collapsedAtEnd, cm = doc.cm, updateMaxLine; - doc.iter(curLine, to.line + 1, function(line) { - if (cm && marker.collapsed && !cm.options.lineWrapping && visualLine(doc, line) == cm.display.maxLine) - updateMaxLine = true; - var span = {from: null, to: null, marker: marker}; - size += line.text.length; - if (curLine == from.line) {span.from = from.ch; size -= from.ch;} - if (curLine == to.line) {span.to = to.ch; size -= line.text.length - to.ch;} - if (marker.collapsed) { - if (curLine == to.line) collapsedAtEnd = collapsedSpanAt(line, to.ch); - if (curLine == from.line) collapsedAtStart = collapsedSpanAt(line, from.ch); - else updateLineHeight(line, 0); - } - addMarkedSpan(line, span); - ++curLine; - }); - if (marker.collapsed) doc.iter(from.line, to.line + 1, function(line) { - if (lineIsHidden(doc, line)) updateLineHeight(line, 0); - }); - - if (marker.clearOnEnter) on(marker, "beforeCursorEnter", function() { marker.clear(); }); - - if (marker.readOnly) { - sawReadOnlySpans = true; - if (doc.history.done.length || doc.history.undone.length) - doc.clearHistory(); - } - if (marker.collapsed) { - if (collapsedAtStart != collapsedAtEnd) - throw new Error("Inserting collapsed marker overlapping an existing one"); - marker.size = size; - marker.atomic = true; - } - if (cm) { - if (updateMaxLine) cm.curOp.updateMaxLine = true; - if (marker.className || marker.title || marker.startStyle || marker.endStyle || marker.collapsed) - regChange(cm, from.line, to.line + 1); - if (marker.atomic) reCheckSelection(cm); - } - return marker; - } - - // SHARED TEXTMARKERS - - function SharedTextMarker(markers, primary) { - this.markers = markers; - this.primary = primary; - for (var i = 0, me = this; i < markers.length; ++i) { - markers[i].parent = this; - on(markers[i], "clear", function(){me.clear();}); - } - } - CodeMirror.SharedTextMarker = SharedTextMarker; - eventMixin(SharedTextMarker); - - SharedTextMarker.prototype.clear = function() { - if (this.explicitlyCleared) return; - this.explicitlyCleared = true; - for (var i = 0; i < this.markers.length; ++i) - this.markers[i].clear(); - signalLater(this, "clear"); - }; - SharedTextMarker.prototype.find = function() { - return this.primary.find(); - }; - - function markTextShared(doc, from, to, options, type) { - options = copyObj(options); - options.shared = false; - var markers = [markText(doc, from, to, options, type)], primary = markers[0]; - var widget = options.replacedWith; - linkedDocs(doc, function(doc) { - if (widget) options.replacedWith = widget.cloneNode(true); - markers.push(markText(doc, clipPos(doc, from), clipPos(doc, to), options, type)); - for (var i = 0; i < doc.linked.length; ++i) - if (doc.linked[i].isParent) return; - primary = lst(markers); - }); - return new SharedTextMarker(markers, primary); - } - - // TEXTMARKER SPANS - - function getMarkedSpanFor(spans, marker) { - if (spans) for (var i = 0; i < spans.length; ++i) { - var span = spans[i]; - if (span.marker == marker) return span; - } - } - function removeMarkedSpan(spans, span) { - for (var r, i = 0; i < spans.length; ++i) - if (spans[i] != span) (r || (r = [])).push(spans[i]); - return r; - } - function addMarkedSpan(line, span) { - line.markedSpans = line.markedSpans ? line.markedSpans.concat([span]) : [span]; - span.marker.attachLine(line); - } - - function markedSpansBefore(old, startCh, isInsert) { - if (old) for (var i = 0, nw; i < old.length; ++i) { - var span = old[i], marker = span.marker; - var startsBefore = span.from == null || (marker.inclusiveLeft ? span.from <= startCh : span.from < startCh); - if (startsBefore || - (marker.inclusiveLeft && marker.inclusiveRight || marker.type == "bookmark") && - span.from == startCh && (!isInsert || !span.marker.insertLeft)) { - var endsAfter = span.to == null || (marker.inclusiveRight ? span.to >= startCh : span.to > startCh); - (nw || (nw = [])).push({from: span.from, - to: endsAfter ? null : span.to, - marker: marker}); - } - } - return nw; - } - - function markedSpansAfter(old, endCh, isInsert) { - if (old) for (var i = 0, nw; i < old.length; ++i) { - var span = old[i], marker = span.marker; - var endsAfter = span.to == null || (marker.inclusiveRight ? span.to >= endCh : span.to > endCh); - if (endsAfter || marker.type == "bookmark" && span.from == endCh && (!isInsert || span.marker.insertLeft)) { - var startsBefore = span.from == null || (marker.inclusiveLeft ? span.from <= endCh : span.from < endCh); - (nw || (nw = [])).push({from: startsBefore ? null : span.from - endCh, - to: span.to == null ? null : span.to - endCh, - marker: marker}); - } - } - return nw; - } - - function stretchSpansOverChange(doc, change) { - var oldFirst = isLine(doc, change.from.line) && getLine(doc, change.from.line).markedSpans; - var oldLast = isLine(doc, change.to.line) && getLine(doc, change.to.line).markedSpans; - if (!oldFirst && !oldLast) return null; - - var startCh = change.from.ch, endCh = change.to.ch, isInsert = posEq(change.from, change.to); - // Get the spans that 'stick out' on both sides - var first = markedSpansBefore(oldFirst, startCh, isInsert); - var last = markedSpansAfter(oldLast, endCh, isInsert); - - // Next, merge those two ends - var sameLine = change.text.length == 1, offset = lst(change.text).length + (sameLine ? startCh : 0); - if (first) { - // Fix up .to properties of first - for (var i = 0; i < first.length; ++i) { - var span = first[i]; - if (span.to == null) { - var found = getMarkedSpanFor(last, span.marker); - if (!found) span.to = startCh; - else if (sameLine) span.to = found.to == null ? null : found.to + offset; - } - } - } - if (last) { - // Fix up .from in last (or move them into first in case of sameLine) - for (var i = 0; i < last.length; ++i) { - var span = last[i]; - if (span.to != null) span.to += offset; - if (span.from == null) { - var found = getMarkedSpanFor(first, span.marker); - if (!found) { - span.from = offset; - if (sameLine) (first || (first = [])).push(span); - } - } else { - span.from += offset; - if (sameLine) (first || (first = [])).push(span); - } - } - } - if (sameLine && first) { - // Make sure we didn't create any zero-length spans - for (var i = 0; i < first.length; ++i) - if (first[i].from != null && first[i].from == first[i].to && first[i].marker.type != "bookmark") - first.splice(i--, 1); - if (!first.length) first = null; - } - - var newMarkers = [first]; - if (!sameLine) { - // Fill gap with whole-line-spans - var gap = change.text.length - 2, gapMarkers; - if (gap > 0 && first) - for (var i = 0; i < first.length; ++i) - if (first[i].to == null) - (gapMarkers || (gapMarkers = [])).push({from: null, to: null, marker: first[i].marker}); - for (var i = 0; i < gap; ++i) - newMarkers.push(gapMarkers); - newMarkers.push(last); - } - return newMarkers; - } - - function mergeOldSpans(doc, change) { - var old = getOldSpans(doc, change); - var stretched = stretchSpansOverChange(doc, change); - if (!old) return stretched; - if (!stretched) return old; - - for (var i = 0; i < old.length; ++i) { - var oldCur = old[i], stretchCur = stretched[i]; - if (oldCur && stretchCur) { - spans: for (var j = 0; j < stretchCur.length; ++j) { - var span = stretchCur[j]; - for (var k = 0; k < oldCur.length; ++k) - if (oldCur[k].marker == span.marker) continue spans; - oldCur.push(span); - } - } else if (stretchCur) { - old[i] = stretchCur; - } - } - return old; - } - - function removeReadOnlyRanges(doc, from, to) { - var markers = null; - doc.iter(from.line, to.line + 1, function(line) { - if (line.markedSpans) for (var i = 0; i < line.markedSpans.length; ++i) { - var mark = line.markedSpans[i].marker; - if (mark.readOnly && (!markers || indexOf(markers, mark) == -1)) - (markers || (markers = [])).push(mark); - } - }); - if (!markers) return null; - var parts = [{from: from, to: to}]; - for (var i = 0; i < markers.length; ++i) { - var mk = markers[i], m = mk.find(); - for (var j = 0; j < parts.length; ++j) { - var p = parts[j]; - if (posLess(p.to, m.from) || posLess(m.to, p.from)) continue; - var newParts = [j, 1]; - if (posLess(p.from, m.from) || !mk.inclusiveLeft && posEq(p.from, m.from)) - newParts.push({from: p.from, to: m.from}); - if (posLess(m.to, p.to) || !mk.inclusiveRight && posEq(p.to, m.to)) - newParts.push({from: m.to, to: p.to}); - parts.splice.apply(parts, newParts); - j += newParts.length - 1; - } - } - return parts; - } - - function collapsedSpanAt(line, ch) { - var sps = sawCollapsedSpans && line.markedSpans, found; - if (sps) for (var sp, i = 0; i < sps.length; ++i) { - sp = sps[i]; - if (!sp.marker.collapsed) continue; - if ((sp.from == null || sp.from < ch) && - (sp.to == null || sp.to > ch) && - (!found || found.width < sp.marker.width)) - found = sp.marker; - } - return found; - } - function collapsedSpanAtStart(line) { return collapsedSpanAt(line, -1); } - function collapsedSpanAtEnd(line) { return collapsedSpanAt(line, line.text.length + 1); } - - function visualLine(doc, line) { - var merged; - while (merged = collapsedSpanAtStart(line)) - line = getLine(doc, merged.find().from.line); - return line; - } - - function lineIsHidden(doc, line) { - var sps = sawCollapsedSpans && line.markedSpans; - if (sps) for (var sp, i = 0; i < sps.length; ++i) { - sp = sps[i]; - if (!sp.marker.collapsed) continue; - if (sp.from == null) return true; - if (sp.marker.replacedWith) continue; - if (sp.from == 0 && sp.marker.inclusiveLeft && lineIsHiddenInner(doc, line, sp)) - return true; - } - } - function lineIsHiddenInner(doc, line, span) { - if (span.to == null) { - var end = span.marker.find().to, endLine = getLine(doc, end.line); - return lineIsHiddenInner(doc, endLine, getMarkedSpanFor(endLine.markedSpans, span.marker)); - } - if (span.marker.inclusiveRight && span.to == line.text.length) - return true; - for (var sp, i = 0; i < line.markedSpans.length; ++i) { - sp = line.markedSpans[i]; - if (sp.marker.collapsed && !sp.marker.replacedWith && sp.from == span.to && - (sp.marker.inclusiveLeft || span.marker.inclusiveRight) && - lineIsHiddenInner(doc, line, sp)) return true; - } - } - - function detachMarkedSpans(line) { - var spans = line.markedSpans; - if (!spans) return; - for (var i = 0; i < spans.length; ++i) - spans[i].marker.detachLine(line); - line.markedSpans = null; - } - - function attachMarkedSpans(line, spans) { - if (!spans) return; - for (var i = 0; i < spans.length; ++i) - spans[i].marker.attachLine(line); - line.markedSpans = spans; - } - - // LINE WIDGETS - - var LineWidget = CodeMirror.LineWidget = function(cm, node, options) { - if (options) for (var opt in options) if (options.hasOwnProperty(opt)) - this[opt] = options[opt]; - this.cm = cm; - this.node = node; - }; - eventMixin(LineWidget); - function widgetOperation(f) { - return function() { - var withOp = !this.cm.curOp; - if (withOp) startOperation(this.cm); - try {var result = f.apply(this, arguments);} - finally {if (withOp) endOperation(this.cm);} - return result; - }; - } - LineWidget.prototype.clear = widgetOperation(function() { - var ws = this.line.widgets, no = lineNo(this.line); - if (no == null || !ws) return; - for (var i = 0; i < ws.length; ++i) if (ws[i] == this) ws.splice(i--, 1); - if (!ws.length) this.line.widgets = null; - var aboveVisible = heightAtLine(this.cm, this.line) < this.cm.doc.scrollTop; - updateLineHeight(this.line, Math.max(0, this.line.height - widgetHeight(this))); - if (aboveVisible) addToScrollPos(this.cm, 0, -this.height); - regChange(this.cm, no, no + 1); - }); - LineWidget.prototype.changed = widgetOperation(function() { - var oldH = this.height; - this.height = null; - var diff = widgetHeight(this) - oldH; - if (!diff) return; - updateLineHeight(this.line, this.line.height + diff); - var no = lineNo(this.line); - regChange(this.cm, no, no + 1); - }); - - function widgetHeight(widget) { - if (widget.height != null) return widget.height; - if (!widget.node.parentNode || widget.node.parentNode.nodeType != 1) - removeChildrenAndAdd(widget.cm.display.measure, elt("div", [widget.node], null, "position: relative")); - return widget.height = widget.node.offsetHeight; - } - - function addLineWidget(cm, handle, node, options) { - var widget = new LineWidget(cm, node, options); - if (widget.noHScroll) cm.display.alignWidgets = true; - changeLine(cm, handle, function(line) { - var widgets = line.widgets || (line.widgets = []); - if (widget.insertAt == null) widgets.push(widget); - else widgets.splice(Math.min(widgets.length - 1, Math.max(0, widget.insertAt)), 0, widget); - widget.line = line; - if (!lineIsHidden(cm.doc, line) || widget.showIfHidden) { - var aboveVisible = heightAtLine(cm, line) < cm.doc.scrollTop; - updateLineHeight(line, line.height + widgetHeight(widget)); - if (aboveVisible) addToScrollPos(cm, 0, widget.height); - } - return true; - }); - return widget; - } - - // LINE DATA STRUCTURE - - // Line objects. These hold state related to a line, including - // highlighting info (the styles array). - var Line = CodeMirror.Line = function(text, markedSpans, estimateHeight) { - this.text = text; - attachMarkedSpans(this, markedSpans); - this.height = estimateHeight ? estimateHeight(this) : 1; - }; - eventMixin(Line); - Line.prototype.lineNo = function() { return lineNo(this); }; - - function updateLine(line, text, markedSpans, estimateHeight) { - line.text = text; - if (line.stateAfter) line.stateAfter = null; - if (line.styles) line.styles = null; - if (line.order != null) line.order = null; - detachMarkedSpans(line); - attachMarkedSpans(line, markedSpans); - var estHeight = estimateHeight ? estimateHeight(line) : 1; - if (estHeight != line.height) updateLineHeight(line, estHeight); - } - - function cleanUpLine(line) { - line.parent = null; - detachMarkedSpans(line); - } - - // Run the given mode's parser over a line, update the styles - // array, which contains alternating fragments of text and CSS - // classes. - function runMode(cm, text, mode, state, f, forceToEnd) { - var flattenSpans = mode.flattenSpans; - if (flattenSpans == null) flattenSpans = cm.options.flattenSpans; - var curStart = 0, curStyle = null; - var stream = new StringStream(text, cm.options.tabSize), style; - if (text == "" && mode.blankLine) mode.blankLine(state); - while (!stream.eol()) { - if (stream.pos > cm.options.maxHighlightLength) { - flattenSpans = false; - if (forceToEnd) processLine(cm, text, state, stream.pos); - stream.pos = text.length; - style = null; - } else { - style = mode.token(stream, state); - } - if (!flattenSpans || curStyle != style) { - if (curStart < stream.start) f(stream.start, curStyle); - curStart = stream.start; curStyle = style; - } - stream.start = stream.pos; - } - while (curStart < stream.pos) { - // Webkit seems to refuse to render text nodes longer than 57444 characters - var pos = Math.min(stream.pos, curStart + 50000); - f(pos, curStyle); - curStart = pos; - } - } - - function highlightLine(cm, line, state, forceToEnd) { - // A styles array always starts with a number identifying the - // mode/overlays that it is based on (for easy invalidation). - var st = [cm.state.modeGen]; - // Compute the base array of styles - runMode(cm, line.text, cm.doc.mode, state, function(end, style) { - st.push(end, style); - }, forceToEnd); - - // Run overlays, adjust style array. - for (var o = 0; o < cm.state.overlays.length; ++o) { - var overlay = cm.state.overlays[o], i = 1, at = 0; - runMode(cm, line.text, overlay.mode, true, function(end, style) { - var start = i; - // Ensure there's a token end at the current position, and that i points at it - while (at < end) { - var i_end = st[i]; - if (i_end > end) - st.splice(i, 1, end, st[i+1], i_end); - i += 2; - at = Math.min(end, i_end); - } - if (!style) return; - if (overlay.opaque) { - st.splice(start, i - start, end, style); - i = start + 2; - } else { - for (; start < i; start += 2) { - var cur = st[start+1]; - st[start+1] = cur ? cur + " " + style : style; - } - } - }); - } - - return st; - } - - function getLineStyles(cm, line) { - if (!line.styles || line.styles[0] != cm.state.modeGen) - line.styles = highlightLine(cm, line, line.stateAfter = getStateBefore(cm, lineNo(line))); - return line.styles; - } - - // Lightweight form of highlight -- proceed over this line and - // update state, but don't save a style array. - function processLine(cm, text, state, startAt) { - var mode = cm.doc.mode; - var stream = new StringStream(text, cm.options.tabSize); - stream.start = stream.pos = startAt || 0; - if (text == "" && mode.blankLine) mode.blankLine(state); - while (!stream.eol() && stream.pos <= cm.options.maxHighlightLength) { - mode.token(stream, state); - stream.start = stream.pos; - } - } - - var styleToClassCache = {}; - function interpretTokenStyle(style, builder) { - if (!style) return null; - for (;;) { - var lineClass = style.match(/(?:^|\s)line-(background-)?(\S+)/); - if (!lineClass) break; - style = style.slice(0, lineClass.index) + style.slice(lineClass.index + lineClass[0].length); - var prop = lineClass[1] ? "bgClass" : "textClass"; - if (builder[prop] == null) - builder[prop] = lineClass[2]; - else if (!(new RegExp("(?:^|\s)" + lineClass[2] + "(?:$|\s)")).test(builder[prop])) - builder[prop] += " " + lineClass[2]; - } - return styleToClassCache[style] || - (styleToClassCache[style] = "cm-" + style.replace(/ +/g, " cm-")); - } - - function buildLineContent(cm, realLine, measure, copyWidgets) { - var merged, line = realLine, empty = true; - while (merged = collapsedSpanAtStart(line)) - line = getLine(cm.doc, merged.find().from.line); - - var builder = {pre: elt("pre"), col: 0, pos: 0, - measure: null, measuredSomething: false, cm: cm, - copyWidgets: copyWidgets}; - - do { - if (line.text) empty = false; - builder.measure = line == realLine && measure; - builder.pos = 0; - builder.addToken = builder.measure ? buildTokenMeasure : buildToken; - if ((ie || webkit) && cm.getOption("lineWrapping")) - builder.addToken = buildTokenSplitSpaces(builder.addToken); - var next = insertLineContent(line, builder, getLineStyles(cm, line)); - if (measure && line == realLine && !builder.measuredSomething) { - measure[0] = builder.pre.appendChild(zeroWidthElement(cm.display.measure)); - builder.measuredSomething = true; - } - if (next) line = getLine(cm.doc, next.to.line); - } while (next); - - if (measure && !builder.measuredSomething && !measure[0]) - measure[0] = builder.pre.appendChild(empty ? elt("span", "\u00a0") : zeroWidthElement(cm.display.measure)); - if (!builder.pre.firstChild && !lineIsHidden(cm.doc, realLine)) - builder.pre.appendChild(document.createTextNode("\u00a0")); - - var order; - // Work around problem with the reported dimensions of single-char - // direction spans on IE (issue #1129). See also the comment in - // cursorCoords. - if (measure && (ie || ie_gt10) && (order = getOrder(line))) { - var l = order.length - 1; - if (order[l].from == order[l].to) --l; - var last = order[l], prev = order[l - 1]; - if (last.from + 1 == last.to && prev && last.level < prev.level) { - var span = measure[builder.pos - 1]; - if (span) span.parentNode.insertBefore(span.measureRight = zeroWidthElement(cm.display.measure), - span.nextSibling); - } - } - - var textClass = builder.textClass ? builder.textClass + " " + (realLine.textClass || "") : realLine.textClass; - if (textClass) builder.pre.className = textClass; - - signal(cm, "renderLine", cm, realLine, builder.pre); - return builder; - } - - function defaultSpecialCharPlaceholder(ch) { - var token = elt("span", "\u2022", "cm-invalidchar"); - token.title = "\\u" + ch.charCodeAt(0).toString(16); - return token; - } - - function buildToken(builder, text, style, startStyle, endStyle, title) { - if (!text) return; - var special = builder.cm.options.specialChars; - if (!special.test(text)) { - builder.col += text.length; - var content = document.createTextNode(text); - } else { - var content = document.createDocumentFragment(), pos = 0; - while (true) { - special.lastIndex = pos; - var m = special.exec(text); - var skipped = m ? m.index - pos : text.length - pos; - if (skipped) { - content.appendChild(document.createTextNode(text.slice(pos, pos + skipped))); - builder.col += skipped; - } - if (!m) break; - pos += skipped + 1; - if (m[0] == "\t") { - var tabSize = builder.cm.options.tabSize, tabWidth = tabSize - builder.col % tabSize; - content.appendChild(elt("span", spaceStr(tabWidth), "cm-tab")); - builder.col += tabWidth; - } else { - var token = builder.cm.options.specialCharPlaceholder(m[0]); - content.appendChild(token); - builder.col += 1; - } - } - } - if (style || startStyle || endStyle || builder.measure) { - var fullStyle = style || ""; - if (startStyle) fullStyle += startStyle; - if (endStyle) fullStyle += endStyle; - var token = elt("span", [content], fullStyle); - if (title) token.title = title; - return builder.pre.appendChild(token); - } - builder.pre.appendChild(content); - } - - function buildTokenMeasure(builder, text, style, startStyle, endStyle) { - var wrapping = builder.cm.options.lineWrapping; - for (var i = 0; i < text.length; ++i) { - var ch = text.charAt(i), start = i == 0; - if (ch >= "\ud800" && ch < "\udbff" && i < text.length - 1) { - ch = text.slice(i, i + 2); - ++i; - } else if (i && wrapping && spanAffectsWrapping(text, i)) { - builder.pre.appendChild(elt("wbr")); - } - var old = builder.measure[builder.pos]; - var span = builder.measure[builder.pos] = - buildToken(builder, ch, style, - start && startStyle, i == text.length - 1 && endStyle); - if (old) span.leftSide = old.leftSide || old; - // In IE single-space nodes wrap differently than spaces - // embedded in larger text nodes, except when set to - // white-space: normal (issue #1268). - if (ie && wrapping && ch == " " && i && !/\s/.test(text.charAt(i - 1)) && - i < text.length - 1 && !/\s/.test(text.charAt(i + 1))) - span.style.whiteSpace = "normal"; - builder.pos += ch.length; - } - if (text.length) builder.measuredSomething = true; - } - - function buildTokenSplitSpaces(inner) { - function split(old) { - var out = " "; - for (var i = 0; i < old.length - 2; ++i) out += i % 2 ? " " : "\u00a0"; - out += " "; - return out; - } - return function(builder, text, style, startStyle, endStyle, title) { - return inner(builder, text.replace(/ {3,}/g, split), style, startStyle, endStyle, title); - }; - } - - function buildCollapsedSpan(builder, size, marker, ignoreWidget) { - var widget = !ignoreWidget && marker.replacedWith; - if (widget) { - if (builder.copyWidgets) widget = widget.cloneNode(true); - builder.pre.appendChild(widget); - if (builder.measure) { - if (size) { - builder.measure[builder.pos] = widget; - } else { - var elt = zeroWidthElement(builder.cm.display.measure); - if (marker.type == "bookmark" && !marker.insertLeft) - builder.measure[builder.pos] = builder.pre.appendChild(elt); - else if (builder.measure[builder.pos]) - return; - else - builder.measure[builder.pos] = builder.pre.insertBefore(elt, widget); - } - builder.measuredSomething = true; - } - } - builder.pos += size; - } - - // Outputs a number of spans to make up a line, taking highlighting - // and marked text into account. - function insertLineContent(line, builder, styles) { - var spans = line.markedSpans, allText = line.text, at = 0; - if (!spans) { - for (var i = 1; i < styles.length; i+=2) - builder.addToken(builder, allText.slice(at, at = styles[i]), interpretTokenStyle(styles[i+1], builder)); - return; - } - - var len = allText.length, pos = 0, i = 1, text = "", style; - var nextChange = 0, spanStyle, spanEndStyle, spanStartStyle, title, collapsed; - for (;;) { - if (nextChange == pos) { // Update current marker set - spanStyle = spanEndStyle = spanStartStyle = title = ""; - collapsed = null; nextChange = Infinity; - var foundBookmarks = []; - for (var j = 0; j < spans.length; ++j) { - var sp = spans[j], m = sp.marker; - if (sp.from <= pos && (sp.to == null || sp.to > pos)) { - if (sp.to != null && nextChange > sp.to) { nextChange = sp.to; spanEndStyle = ""; } - if (m.className) spanStyle += " " + m.className; - if (m.startStyle && sp.from == pos) spanStartStyle += " " + m.startStyle; - if (m.endStyle && sp.to == nextChange) spanEndStyle += " " + m.endStyle; - if (m.title && !title) title = m.title; - if (m.collapsed && (!collapsed || collapsed.marker.size < m.size)) - collapsed = sp; - } else if (sp.from > pos && nextChange > sp.from) { - nextChange = sp.from; - } - if (m.type == "bookmark" && sp.from == pos && m.replacedWith) foundBookmarks.push(m); - } - if (collapsed && (collapsed.from || 0) == pos) { - buildCollapsedSpan(builder, (collapsed.to == null ? len : collapsed.to) - pos, - collapsed.marker, collapsed.from == null); - if (collapsed.to == null) return collapsed.marker.find(); - } - if (!collapsed && foundBookmarks.length) for (var j = 0; j < foundBookmarks.length; ++j) - buildCollapsedSpan(builder, 0, foundBookmarks[j]); - } - if (pos >= len) break; - - var upto = Math.min(len, nextChange); - while (true) { - if (text) { - var end = pos + text.length; - if (!collapsed) { - var tokenText = end > upto ? text.slice(0, upto - pos) : text; - builder.addToken(builder, tokenText, style ? style + spanStyle : spanStyle, - spanStartStyle, pos + tokenText.length == nextChange ? spanEndStyle : "", title); - } - if (end >= upto) {text = text.slice(upto - pos); pos = upto; break;} - pos = end; - spanStartStyle = ""; - } - text = allText.slice(at, at = styles[i++]); - style = interpretTokenStyle(styles[i++], builder); - } - } - } - - // DOCUMENT DATA STRUCTURE - - function updateDoc(doc, change, markedSpans, selAfter, estimateHeight) { - function spansFor(n) {return markedSpans ? markedSpans[n] : null;} - function update(line, text, spans) { - updateLine(line, text, spans, estimateHeight); - signalLater(line, "change", line, change); - } - - var from = change.from, to = change.to, text = change.text; - var firstLine = getLine(doc, from.line), lastLine = getLine(doc, to.line); - var lastText = lst(text), lastSpans = spansFor(text.length - 1), nlines = to.line - from.line; - - // First adjust the line structure - if (from.ch == 0 && to.ch == 0 && lastText == "" && - (!doc.cm || doc.cm.options.wholeLineUpdateBefore)) { - // This is a whole-line replace. Treated specially to make - // sure line objects move the way they are supposed to. - for (var i = 0, e = text.length - 1, added = []; i < e; ++i) - added.push(new Line(text[i], spansFor(i), estimateHeight)); - update(lastLine, lastLine.text, lastSpans); - if (nlines) doc.remove(from.line, nlines); - if (added.length) doc.insert(from.line, added); - } else if (firstLine == lastLine) { - if (text.length == 1) { - update(firstLine, firstLine.text.slice(0, from.ch) + lastText + firstLine.text.slice(to.ch), lastSpans); - } else { - for (var added = [], i = 1, e = text.length - 1; i < e; ++i) - added.push(new Line(text[i], spansFor(i), estimateHeight)); - added.push(new Line(lastText + firstLine.text.slice(to.ch), lastSpans, estimateHeight)); - update(firstLine, firstLine.text.slice(0, from.ch) + text[0], spansFor(0)); - doc.insert(from.line + 1, added); - } - } else if (text.length == 1) { - update(firstLine, firstLine.text.slice(0, from.ch) + text[0] + lastLine.text.slice(to.ch), spansFor(0)); - doc.remove(from.line + 1, nlines); - } else { - update(firstLine, firstLine.text.slice(0, from.ch) + text[0], spansFor(0)); - update(lastLine, lastText + lastLine.text.slice(to.ch), lastSpans); - for (var i = 1, e = text.length - 1, added = []; i < e; ++i) - added.push(new Line(text[i], spansFor(i), estimateHeight)); - if (nlines > 1) doc.remove(from.line + 1, nlines - 1); - doc.insert(from.line + 1, added); - } - - signalLater(doc, "change", doc, change); - setSelection(doc, selAfter.anchor, selAfter.head, null, true); - } - - function LeafChunk(lines) { - this.lines = lines; - this.parent = null; - for (var i = 0, e = lines.length, height = 0; i < e; ++i) { - lines[i].parent = this; - height += lines[i].height; - } - this.height = height; - } - - LeafChunk.prototype = { - chunkSize: function() { return this.lines.length; }, - removeInner: function(at, n) { - for (var i = at, e = at + n; i < e; ++i) { - var line = this.lines[i]; - this.height -= line.height; - cleanUpLine(line); - signalLater(line, "delete"); - } - this.lines.splice(at, n); - }, - collapse: function(lines) { - lines.splice.apply(lines, [lines.length, 0].concat(this.lines)); - }, - insertInner: function(at, lines, height) { - this.height += height; - this.lines = this.lines.slice(0, at).concat(lines).concat(this.lines.slice(at)); - for (var i = 0, e = lines.length; i < e; ++i) lines[i].parent = this; - }, - iterN: function(at, n, op) { - for (var e = at + n; at < e; ++at) - if (op(this.lines[at])) return true; - } - }; - - function BranchChunk(children) { - this.children = children; - var size = 0, height = 0; - for (var i = 0, e = children.length; i < e; ++i) { - var ch = children[i]; - size += ch.chunkSize(); height += ch.height; - ch.parent = this; - } - this.size = size; - this.height = height; - this.parent = null; - } - - BranchChunk.prototype = { - chunkSize: function() { return this.size; }, - removeInner: function(at, n) { - this.size -= n; - for (var i = 0; i < this.children.length; ++i) { - var child = this.children[i], sz = child.chunkSize(); - if (at < sz) { - var rm = Math.min(n, sz - at), oldHeight = child.height; - child.removeInner(at, rm); - this.height -= oldHeight - child.height; - if (sz == rm) { this.children.splice(i--, 1); child.parent = null; } - if ((n -= rm) == 0) break; - at = 0; - } else at -= sz; - } - if (this.size - n < 25) { - var lines = []; - this.collapse(lines); - this.children = [new LeafChunk(lines)]; - this.children[0].parent = this; - } - }, - collapse: function(lines) { - for (var i = 0, e = this.children.length; i < e; ++i) this.children[i].collapse(lines); - }, - insertInner: function(at, lines, height) { - this.size += lines.length; - this.height += height; - for (var i = 0, e = this.children.length; i < e; ++i) { - var child = this.children[i], sz = child.chunkSize(); - if (at <= sz) { - child.insertInner(at, lines, height); - if (child.lines && child.lines.length > 50) { - while (child.lines.length > 50) { - var spilled = child.lines.splice(child.lines.length - 25, 25); - var newleaf = new LeafChunk(spilled); - child.height -= newleaf.height; - this.children.splice(i + 1, 0, newleaf); - newleaf.parent = this; - } - this.maybeSpill(); - } - break; - } - at -= sz; - } - }, - maybeSpill: function() { - if (this.children.length <= 10) return; - var me = this; - do { - var spilled = me.children.splice(me.children.length - 5, 5); - var sibling = new BranchChunk(spilled); - if (!me.parent) { // Become the parent node - var copy = new BranchChunk(me.children); - copy.parent = me; - me.children = [copy, sibling]; - me = copy; - } else { - me.size -= sibling.size; - me.height -= sibling.height; - var myIndex = indexOf(me.parent.children, me); - me.parent.children.splice(myIndex + 1, 0, sibling); - } - sibling.parent = me.parent; - } while (me.children.length > 10); - me.parent.maybeSpill(); - }, - iterN: function(at, n, op) { - for (var i = 0, e = this.children.length; i < e; ++i) { - var child = this.children[i], sz = child.chunkSize(); - if (at < sz) { - var used = Math.min(n, sz - at); - if (child.iterN(at, used, op)) return true; - if ((n -= used) == 0) break; - at = 0; - } else at -= sz; - } - } - }; - - var nextDocId = 0; - var Doc = CodeMirror.Doc = function(text, mode, firstLine) { - if (!(this instanceof Doc)) return new Doc(text, mode, firstLine); - if (firstLine == null) firstLine = 0; - - BranchChunk.call(this, [new LeafChunk([new Line("", null)])]); - this.first = firstLine; - this.scrollTop = this.scrollLeft = 0; - this.cantEdit = false; - this.history = makeHistory(); - this.cleanGeneration = 1; - this.frontier = firstLine; - var start = Pos(firstLine, 0); - this.sel = {from: start, to: start, head: start, anchor: start, shift: false, extend: false, goalColumn: null}; - this.id = ++nextDocId; - this.modeOption = mode; - - if (typeof text == "string") text = splitLines(text); - updateDoc(this, {from: start, to: start, text: text}, null, {head: start, anchor: start}); - }; - - Doc.prototype = createObj(BranchChunk.prototype, { - constructor: Doc, - iter: function(from, to, op) { - if (op) this.iterN(from - this.first, to - from, op); - else this.iterN(this.first, this.first + this.size, from); - }, - - insert: function(at, lines) { - var height = 0; - for (var i = 0, e = lines.length; i < e; ++i) height += lines[i].height; - this.insertInner(at - this.first, lines, height); - }, - remove: function(at, n) { this.removeInner(at - this.first, n); }, - - getValue: function(lineSep) { - var lines = getLines(this, this.first, this.first + this.size); - if (lineSep === false) return lines; - return lines.join(lineSep || "\n"); - }, - setValue: function(code) { - var top = Pos(this.first, 0), last = this.first + this.size - 1; - makeChange(this, {from: top, to: Pos(last, getLine(this, last).text.length), - text: splitLines(code), origin: "setValue"}, - {head: top, anchor: top}, true); - }, - replaceRange: function(code, from, to, origin) { - from = clipPos(this, from); - to = to ? clipPos(this, to) : from; - replaceRange(this, code, from, to, origin); - }, - getRange: function(from, to, lineSep) { - var lines = getBetween(this, clipPos(this, from), clipPos(this, to)); - if (lineSep === false) return lines; - return lines.join(lineSep || "\n"); - }, - - getLine: function(line) {var l = this.getLineHandle(line); return l && l.text;}, - setLine: function(line, text) { - if (isLine(this, line)) - replaceRange(this, text, Pos(line, 0), clipPos(this, Pos(line))); - }, - removeLine: function(line) { - if (line) replaceRange(this, "", clipPos(this, Pos(line - 1)), clipPos(this, Pos(line))); - else replaceRange(this, "", Pos(0, 0), clipPos(this, Pos(1, 0))); - }, - - getLineHandle: function(line) {if (isLine(this, line)) return getLine(this, line);}, - getLineNumber: function(line) {return lineNo(line);}, - - getLineHandleVisualStart: function(line) { - if (typeof line == "number") line = getLine(this, line); - return visualLine(this, line); - }, - - lineCount: function() {return this.size;}, - firstLine: function() {return this.first;}, - lastLine: function() {return this.first + this.size - 1;}, - - clipPos: function(pos) {return clipPos(this, pos);}, - - getCursor: function(start) { - var sel = this.sel, pos; - if (start == null || start == "head") pos = sel.head; - else if (start == "anchor") pos = sel.anchor; - else if (start == "end" || start === false) pos = sel.to; - else pos = sel.from; - return copyPos(pos); - }, - somethingSelected: function() {return !posEq(this.sel.head, this.sel.anchor);}, - - setCursor: docOperation(function(line, ch, extend) { - var pos = clipPos(this, typeof line == "number" ? Pos(line, ch || 0) : line); - if (extend) extendSelection(this, pos); - else setSelection(this, pos, pos); - }), - setSelection: docOperation(function(anchor, head, bias) { - setSelection(this, clipPos(this, anchor), clipPos(this, head || anchor), bias); - }), - extendSelection: docOperation(function(from, to, bias) { - extendSelection(this, clipPos(this, from), to && clipPos(this, to), bias); - }), - - getSelection: function(lineSep) {return this.getRange(this.sel.from, this.sel.to, lineSep);}, - replaceSelection: function(code, collapse, origin) { - makeChange(this, {from: this.sel.from, to: this.sel.to, text: splitLines(code), origin: origin}, collapse || "around"); - }, - undo: docOperation(function() {makeChangeFromHistory(this, "undo");}), - redo: docOperation(function() {makeChangeFromHistory(this, "redo");}), - - setExtending: function(val) {this.sel.extend = val;}, - - historySize: function() { - var hist = this.history; - return {undo: hist.done.length, redo: hist.undone.length}; - }, - clearHistory: function() {this.history = makeHistory(this.history.maxGeneration);}, - - markClean: function() { - this.cleanGeneration = this.changeGeneration(); - }, - changeGeneration: function() { - this.history.lastOp = this.history.lastOrigin = null; - return this.history.generation; - }, - isClean: function (gen) { - return this.history.generation == (gen || this.cleanGeneration); - }, - - getHistory: function() { - return {done: copyHistoryArray(this.history.done), - undone: copyHistoryArray(this.history.undone)}; - }, - setHistory: function(histData) { - var hist = this.history = makeHistory(this.history.maxGeneration); - hist.done = histData.done.slice(0); - hist.undone = histData.undone.slice(0); - }, - - markText: function(from, to, options) { - return markText(this, clipPos(this, from), clipPos(this, to), options, "range"); - }, - setBookmark: function(pos, options) { - var realOpts = {replacedWith: options && (options.nodeType == null ? options.widget : options), - insertLeft: options && options.insertLeft}; - pos = clipPos(this, pos); - return markText(this, pos, pos, realOpts, "bookmark"); - }, - findMarksAt: function(pos) { - pos = clipPos(this, pos); - var markers = [], spans = getLine(this, pos.line).markedSpans; - if (spans) for (var i = 0; i < spans.length; ++i) { - var span = spans[i]; - if ((span.from == null || span.from <= pos.ch) && - (span.to == null || span.to >= pos.ch)) - markers.push(span.marker.parent || span.marker); - } - return markers; - }, - getAllMarks: function() { - var markers = []; - this.iter(function(line) { - var sps = line.markedSpans; - if (sps) for (var i = 0; i < sps.length; ++i) - if (sps[i].from != null) markers.push(sps[i].marker); - }); - return markers; - }, - - posFromIndex: function(off) { - var ch, lineNo = this.first; - this.iter(function(line) { - var sz = line.text.length + 1; - if (sz > off) { ch = off; return true; } - off -= sz; - ++lineNo; - }); - return clipPos(this, Pos(lineNo, ch)); - }, - indexFromPos: function (coords) { - coords = clipPos(this, coords); - var index = coords.ch; - if (coords.line < this.first || coords.ch < 0) return 0; - this.iter(this.first, coords.line, function (line) { - index += line.text.length + 1; - }); - return index; - }, - - copy: function(copyHistory) { - var doc = new Doc(getLines(this, this.first, this.first + this.size), this.modeOption, this.first); - doc.scrollTop = this.scrollTop; doc.scrollLeft = this.scrollLeft; - doc.sel = {from: this.sel.from, to: this.sel.to, head: this.sel.head, anchor: this.sel.anchor, - shift: this.sel.shift, extend: false, goalColumn: this.sel.goalColumn}; - if (copyHistory) { - doc.history.undoDepth = this.history.undoDepth; - doc.setHistory(this.getHistory()); - } - return doc; - }, - - linkedDoc: function(options) { - if (!options) options = {}; - var from = this.first, to = this.first + this.size; - if (options.from != null && options.from > from) from = options.from; - if (options.to != null && options.to < to) to = options.to; - var copy = new Doc(getLines(this, from, to), options.mode || this.modeOption, from); - if (options.sharedHist) copy.history = this.history; - (this.linked || (this.linked = [])).push({doc: copy, sharedHist: options.sharedHist}); - copy.linked = [{doc: this, isParent: true, sharedHist: options.sharedHist}]; - return copy; - }, - unlinkDoc: function(other) { - if (other instanceof CodeMirror) other = other.doc; - if (this.linked) for (var i = 0; i < this.linked.length; ++i) { - var link = this.linked[i]; - if (link.doc != other) continue; - this.linked.splice(i, 1); - other.unlinkDoc(this); - break; - } - // If the histories were shared, split them again - if (other.history == this.history) { - var splitIds = [other.id]; - linkedDocs(other, function(doc) {splitIds.push(doc.id);}, true); - other.history = makeHistory(); - other.history.done = copyHistoryArray(this.history.done, splitIds); - other.history.undone = copyHistoryArray(this.history.undone, splitIds); - } - }, - iterLinkedDocs: function(f) {linkedDocs(this, f);}, - - getMode: function() {return this.mode;}, - getEditor: function() {return this.cm;} - }); - - Doc.prototype.eachLine = Doc.prototype.iter; - - // The Doc methods that should be available on CodeMirror instances - var dontDelegate = "iter insert remove copy getEditor".split(" "); - for (var prop in Doc.prototype) if (Doc.prototype.hasOwnProperty(prop) && indexOf(dontDelegate, prop) < 0) - CodeMirror.prototype[prop] = (function(method) { - return function() {return method.apply(this.doc, arguments);}; - })(Doc.prototype[prop]); - - eventMixin(Doc); - - function linkedDocs(doc, f, sharedHistOnly) { - function propagate(doc, skip, sharedHist) { - if (doc.linked) for (var i = 0; i < doc.linked.length; ++i) { - var rel = doc.linked[i]; - if (rel.doc == skip) continue; - var shared = sharedHist && rel.sharedHist; - if (sharedHistOnly && !shared) continue; - f(rel.doc, shared); - propagate(rel.doc, doc, shared); - } - } - propagate(doc, null, true); - } - - function attachDoc(cm, doc) { - if (doc.cm) throw new Error("This document is already in use."); - cm.doc = doc; - doc.cm = cm; - estimateLineHeights(cm); - loadMode(cm); - if (!cm.options.lineWrapping) computeMaxLength(cm); - cm.options.mode = doc.modeOption; - regChange(cm); - } - - // LINE UTILITIES - - function getLine(chunk, n) { - n -= chunk.first; - while (!chunk.lines) { - for (var i = 0;; ++i) { - var child = chunk.children[i], sz = child.chunkSize(); - if (n < sz) { chunk = child; break; } - n -= sz; - } - } - return chunk.lines[n]; - } - - function getBetween(doc, start, end) { - var out = [], n = start.line; - doc.iter(start.line, end.line + 1, function(line) { - var text = line.text; - if (n == end.line) text = text.slice(0, end.ch); - if (n == start.line) text = text.slice(start.ch); - out.push(text); - ++n; - }); - return out; - } - function getLines(doc, from, to) { - var out = []; - doc.iter(from, to, function(line) { out.push(line.text); }); - return out; - } - - function updateLineHeight(line, height) { - var diff = height - line.height; - for (var n = line; n; n = n.parent) n.height += diff; - } - - function lineNo(line) { - if (line.parent == null) return null; - var cur = line.parent, no = indexOf(cur.lines, line); - for (var chunk = cur.parent; chunk; cur = chunk, chunk = chunk.parent) { - for (var i = 0;; ++i) { - if (chunk.children[i] == cur) break; - no += chunk.children[i].chunkSize(); - } - } - return no + cur.first; - } - - function lineAtHeight(chunk, h) { - var n = chunk.first; - outer: do { - for (var i = 0, e = chunk.children.length; i < e; ++i) { - var child = chunk.children[i], ch = child.height; - if (h < ch) { chunk = child; continue outer; } - h -= ch; - n += child.chunkSize(); - } - return n; - } while (!chunk.lines); - for (var i = 0, e = chunk.lines.length; i < e; ++i) { - var line = chunk.lines[i], lh = line.height; - if (h < lh) break; - h -= lh; - } - return n + i; - } - - function heightAtLine(cm, lineObj) { - lineObj = visualLine(cm.doc, lineObj); - - var h = 0, chunk = lineObj.parent; - for (var i = 0; i < chunk.lines.length; ++i) { - var line = chunk.lines[i]; - if (line == lineObj) break; - else h += line.height; - } - for (var p = chunk.parent; p; chunk = p, p = chunk.parent) { - for (var i = 0; i < p.children.length; ++i) { - var cur = p.children[i]; - if (cur == chunk) break; - else h += cur.height; - } - } - return h; - } - - function getOrder(line) { - var order = line.order; - if (order == null) order = line.order = bidiOrdering(line.text); - return order; - } - - // HISTORY - - function makeHistory(startGen) { - return { - // Arrays of history events. Doing something adds an event to - // done and clears undo. Undoing moves events from done to - // undone, redoing moves them in the other direction. - done: [], undone: [], undoDepth: Infinity, - // Used to track when changes can be merged into a single undo - // event - lastTime: 0, lastOp: null, lastOrigin: null, - // Used by the isClean() method - generation: startGen || 1, maxGeneration: startGen || 1 - }; - } - - function attachLocalSpans(doc, change, from, to) { - var existing = change["spans_" + doc.id], n = 0; - doc.iter(Math.max(doc.first, from), Math.min(doc.first + doc.size, to), function(line) { - if (line.markedSpans) - (existing || (existing = change["spans_" + doc.id] = {}))[n] = line.markedSpans; - ++n; - }); - } - - function historyChangeFromChange(doc, change) { - var from = { line: change.from.line, ch: change.from.ch }; - var histChange = {from: from, to: changeEnd(change), text: getBetween(doc, change.from, change.to)}; - attachLocalSpans(doc, histChange, change.from.line, change.to.line + 1); - linkedDocs(doc, function(doc) {attachLocalSpans(doc, histChange, change.from.line, change.to.line + 1);}, true); - return histChange; - } - - function addToHistory(doc, change, selAfter, opId) { - var hist = doc.history; - hist.undone.length = 0; - var time = +new Date, cur = lst(hist.done); - - if (cur && - (hist.lastOp == opId || - hist.lastOrigin == change.origin && change.origin && - ((change.origin.charAt(0) == "+" && doc.cm && hist.lastTime > time - doc.cm.options.historyEventDelay) || - change.origin.charAt(0) == "*"))) { - // Merge this change into the last event - var last = lst(cur.changes); - if (posEq(change.from, change.to) && posEq(change.from, last.to)) { - // Optimized case for simple insertion -- don't want to add - // new changesets for every character typed - last.to = changeEnd(change); - } else { - // Add new sub-event - cur.changes.push(historyChangeFromChange(doc, change)); - } - cur.anchorAfter = selAfter.anchor; cur.headAfter = selAfter.head; - } else { - // Can not be merged, start a new event. - cur = {changes: [historyChangeFromChange(doc, change)], - generation: hist.generation, - anchorBefore: doc.sel.anchor, headBefore: doc.sel.head, - anchorAfter: selAfter.anchor, headAfter: selAfter.head}; - hist.done.push(cur); - hist.generation = ++hist.maxGeneration; - while (hist.done.length > hist.undoDepth) - hist.done.shift(); - } - hist.lastTime = time; - hist.lastOp = opId; - hist.lastOrigin = change.origin; - } - - function removeClearedSpans(spans) { - if (!spans) return null; - for (var i = 0, out; i < spans.length; ++i) { - if (spans[i].marker.explicitlyCleared) { if (!out) out = spans.slice(0, i); } - else if (out) out.push(spans[i]); - } - return !out ? spans : out.length ? out : null; - } - - function getOldSpans(doc, change) { - var found = change["spans_" + doc.id]; - if (!found) return null; - for (var i = 0, nw = []; i < change.text.length; ++i) - nw.push(removeClearedSpans(found[i])); - return nw; - } - - // Used both to provide a JSON-safe object in .getHistory, and, when - // detaching a document, to split the history in two - function copyHistoryArray(events, newGroup) { - for (var i = 0, copy = []; i < events.length; ++i) { - var event = events[i], changes = event.changes, newChanges = []; - copy.push({changes: newChanges, anchorBefore: event.anchorBefore, headBefore: event.headBefore, - anchorAfter: event.anchorAfter, headAfter: event.headAfter}); - for (var j = 0; j < changes.length; ++j) { - var change = changes[j], m; - newChanges.push({from: change.from, to: change.to, text: change.text}); - if (newGroup) for (var prop in change) if (m = prop.match(/^spans_(\d+)$/)) { - if (indexOf(newGroup, Number(m[1])) > -1) { - lst(newChanges)[prop] = change[prop]; - delete change[prop]; - } - } - } - } - return copy; - } - - // Rebasing/resetting history to deal with externally-sourced changes - - function rebaseHistSel(pos, from, to, diff) { - if (to < pos.line) { - pos.line += diff; - } else if (from < pos.line) { - pos.line = from; - pos.ch = 0; - } - } - - // Tries to rebase an array of history events given a change in the - // document. If the change touches the same lines as the event, the - // event, and everything 'behind' it, is discarded. If the change is - // before the event, the event's positions are updated. Uses a - // copy-on-write scheme for the positions, to avoid having to - // reallocate them all on every rebase, but also avoid problems with - // shared position objects being unsafely updated. - function rebaseHistArray(array, from, to, diff) { - for (var i = 0; i < array.length; ++i) { - var sub = array[i], ok = true; - for (var j = 0; j < sub.changes.length; ++j) { - var cur = sub.changes[j]; - if (!sub.copied) { cur.from = copyPos(cur.from); cur.to = copyPos(cur.to); } - if (to < cur.from.line) { - cur.from.line += diff; - cur.to.line += diff; - } else if (from <= cur.to.line) { - ok = false; - break; - } - } - if (!sub.copied) { - sub.anchorBefore = copyPos(sub.anchorBefore); sub.headBefore = copyPos(sub.headBefore); - sub.anchorAfter = copyPos(sub.anchorAfter); sub.readAfter = copyPos(sub.headAfter); - sub.copied = true; - } - if (!ok) { - array.splice(0, i + 1); - i = 0; - } else { - rebaseHistSel(sub.anchorBefore); rebaseHistSel(sub.headBefore); - rebaseHistSel(sub.anchorAfter); rebaseHistSel(sub.headAfter); - } - } - } - - function rebaseHist(hist, change) { - var from = change.from.line, to = change.to.line, diff = change.text.length - (to - from) - 1; - rebaseHistArray(hist.done, from, to, diff); - rebaseHistArray(hist.undone, from, to, diff); - } - - // EVENT OPERATORS - - function stopMethod() {e_stop(this);} - // Ensure an event has a stop method. - function addStop(event) { - if (!event.stop) event.stop = stopMethod; - return event; - } - - function e_preventDefault(e) { - if (e.preventDefault) e.preventDefault(); - else e.returnValue = false; - } - function e_stopPropagation(e) { - if (e.stopPropagation) e.stopPropagation(); - else e.cancelBubble = true; - } - function e_defaultPrevented(e) { - return e.defaultPrevented != null ? e.defaultPrevented : e.returnValue == false; - } - function e_stop(e) {e_preventDefault(e); e_stopPropagation(e);} - CodeMirror.e_stop = e_stop; - CodeMirror.e_preventDefault = e_preventDefault; - CodeMirror.e_stopPropagation = e_stopPropagation; - - function e_target(e) {return e.target || e.srcElement;} - function e_button(e) { - var b = e.which; - if (b == null) { - if (e.button & 1) b = 1; - else if (e.button & 2) b = 3; - else if (e.button & 4) b = 2; - } - if (mac && e.ctrlKey && b == 1) b = 3; - return b; - } - - // EVENT HANDLING - - function on(emitter, type, f) { - if (emitter.addEventListener) - emitter.addEventListener(type, f, false); - else if (emitter.attachEvent) - emitter.attachEvent("on" + type, f); - else { - var map = emitter._handlers || (emitter._handlers = {}); - var arr = map[type] || (map[type] = []); - arr.push(f); - } - } - - function off(emitter, type, f) { - if (emitter.removeEventListener) - emitter.removeEventListener(type, f, false); - else if (emitter.detachEvent) - emitter.detachEvent("on" + type, f); - else { - var arr = emitter._handlers && emitter._handlers[type]; - if (!arr) return; - for (var i = 0; i < arr.length; ++i) - if (arr[i] == f) { arr.splice(i, 1); break; } - } - } - - function signal(emitter, type /*, values...*/) { - var arr = emitter._handlers && emitter._handlers[type]; - if (!arr) return; - var args = Array.prototype.slice.call(arguments, 2); - for (var i = 0; i < arr.length; ++i) arr[i].apply(null, args); - } - - var delayedCallbacks, delayedCallbackDepth = 0; - function signalLater(emitter, type /*, values...*/) { - var arr = emitter._handlers && emitter._handlers[type]; - if (!arr) return; - var args = Array.prototype.slice.call(arguments, 2); - if (!delayedCallbacks) { - ++delayedCallbackDepth; - delayedCallbacks = []; - setTimeout(fireDelayed, 0); - } - function bnd(f) {return function(){f.apply(null, args);};}; - for (var i = 0; i < arr.length; ++i) - delayedCallbacks.push(bnd(arr[i])); - } - - function signalDOMEvent(cm, e, override) { - signal(cm, override || e.type, cm, e); - return e_defaultPrevented(e) || e.codemirrorIgnore; - } - - function fireDelayed() { - --delayedCallbackDepth; - var delayed = delayedCallbacks; - delayedCallbacks = null; - for (var i = 0; i < delayed.length; ++i) delayed[i](); - } - - function hasHandler(emitter, type) { - var arr = emitter._handlers && emitter._handlers[type]; - return arr && arr.length > 0; - } - - CodeMirror.on = on; CodeMirror.off = off; CodeMirror.signal = signal; - - function eventMixin(ctor) { - ctor.prototype.on = function(type, f) {on(this, type, f);}; - ctor.prototype.off = function(type, f) {off(this, type, f);}; - } - - // MISC UTILITIES - - // Number of pixels added to scroller and sizer to hide scrollbar - var scrollerCutOff = 30; - - // Returned or thrown by various protocols to signal 'I'm not - // handling this'. - var Pass = CodeMirror.Pass = {toString: function(){return "CodeMirror.Pass";}}; - - function Delayed() {this.id = null;} - Delayed.prototype = {set: function(ms, f) {clearTimeout(this.id); this.id = setTimeout(f, ms);}}; - - // Counts the column offset in a string, taking tabs into account. - // Used mostly to find indentation. - function countColumn(string, end, tabSize, startIndex, startValue) { - if (end == null) { - end = string.search(/[^\s\u00a0]/); - if (end == -1) end = string.length; - } - for (var i = startIndex || 0, n = startValue || 0; i < end; ++i) { - if (string.charAt(i) == "\t") n += tabSize - (n % tabSize); - else ++n; - } - return n; - } - CodeMirror.countColumn = countColumn; - - var spaceStrs = [""]; - function spaceStr(n) { - while (spaceStrs.length <= n) - spaceStrs.push(lst(spaceStrs) + " "); - return spaceStrs[n]; - } - - function lst(arr) { return arr[arr.length-1]; } - - function selectInput(node) { - if (ios) { // Mobile Safari apparently has a bug where select() is broken. - node.selectionStart = 0; - node.selectionEnd = node.value.length; - } else { - // Suppress mysterious IE10 errors - try { node.select(); } - catch(_e) {} - } - } - - function indexOf(collection, elt) { - if (collection.indexOf) return collection.indexOf(elt); - for (var i = 0, e = collection.length; i < e; ++i) - if (collection[i] == elt) return i; - return -1; - } - - function createObj(base, props) { - function Obj() {} - Obj.prototype = base; - var inst = new Obj(); - if (props) copyObj(props, inst); - return inst; - } - - function copyObj(obj, target) { - if (!target) target = {}; - for (var prop in obj) if (obj.hasOwnProperty(prop)) target[prop] = obj[prop]; - return target; - } - - function emptyArray(size) { - for (var a = [], i = 0; i < size; ++i) a.push(undefined); - return a; - } - - function bind(f) { - var args = Array.prototype.slice.call(arguments, 1); - return function(){return f.apply(null, args);}; - } - - var nonASCIISingleCaseWordChar = /[\u3040-\u309f\u30a0-\u30ff\u3400-\u4db5\u4e00-\u9fcc\uac00-\ud7af]/; - function isWordChar(ch) { - return /\w/.test(ch) || ch > "\x80" && - (ch.toUpperCase() != ch.toLowerCase() || nonASCIISingleCaseWordChar.test(ch)); - } - - function isEmpty(obj) { - for (var n in obj) if (obj.hasOwnProperty(n) && obj[n]) return false; - return true; - } - - var isExtendingChar = /[\u0300-\u036F\u0483-\u0487\u0488-\u0489\u0591-\u05BD\u05BF\u05C1-\u05C2\u05C4-\u05C5\u05C7\u0610-\u061A\u064B-\u065F\u0670\u06D6-\u06DC\u06DF-\u06E4\u06E7-\u06E8\u06EA-\u06ED\uA66F\u1DC0–\u1DFF\u20D0–\u20FF\uA670-\uA672\uA674-\uA67D\uA69F\udc00-\udfff\uFE20–\uFE2F]/; - - // DOM UTILITIES - - function elt(tag, content, className, style) { - var e = document.createElement(tag); - if (className) e.className = className; - if (style) e.style.cssText = style; - if (typeof content == "string") setTextContent(e, content); - else if (content) for (var i = 0; i < content.length; ++i) e.appendChild(content[i]); - return e; - } - - function removeChildren(e) { - for (var count = e.childNodes.length; count > 0; --count) - e.removeChild(e.firstChild); - return e; - } - - function removeChildrenAndAdd(parent, e) { - return removeChildren(parent).appendChild(e); - } - - function setTextContent(e, str) { - if (ie_lt9) { - e.innerHTML = ""; - e.appendChild(document.createTextNode(str)); - } else e.textContent = str; - } - - function getRect(node) { - return node.getBoundingClientRect(); - } - CodeMirror.replaceGetRect = function(f) { getRect = f; }; - - // FEATURE DETECTION - - // Detect drag-and-drop - var dragAndDrop = function() { - // There is *some* kind of drag-and-drop support in IE6-8, but I - // couldn't get it to work yet. - if (ie_lt9) return false; - var div = elt('div'); - return "draggable" in div || "dragDrop" in div; - }(); - - // For a reason I have yet to figure out, some browsers disallow - // word wrapping between certain characters *only* if a new inline - // element is started between them. This makes it hard to reliably - // measure the position of things, since that requires inserting an - // extra span. This terribly fragile set of tests matches the - // character combinations that suffer from this phenomenon on the - // various browsers. - function spanAffectsWrapping() { return false; } - if (gecko) // Only for "$'" - spanAffectsWrapping = function(str, i) { - return str.charCodeAt(i - 1) == 36 && str.charCodeAt(i) == 39; - }; - else if (safari && !/Version\/([6-9]|\d\d)\b/.test(navigator.userAgent)) - spanAffectsWrapping = function(str, i) { - return /\-[^ \-?]|\?[^ !\'\"\),.\-\/:;\?\]\}]/.test(str.slice(i - 1, i + 1)); - }; - else if (webkit && /Chrome\/(?:29|[3-9]\d|\d\d\d)\./.test(navigator.userAgent)) - spanAffectsWrapping = function(str, i) { - var code = str.charCodeAt(i - 1); - return code >= 8208 && code <= 8212; - }; - else if (webkit) - spanAffectsWrapping = function(str, i) { - if (i > 1 && str.charCodeAt(i - 1) == 45) { - if (/\w/.test(str.charAt(i - 2)) && /[^\-?\.]/.test(str.charAt(i))) return true; - if (i > 2 && /[\d\.,]/.test(str.charAt(i - 2)) && /[\d\.,]/.test(str.charAt(i))) return false; - } - return /[~!#%&*)=+}\]\\|\"\.>,:;][({[<]|-[^\-?\.\u2010-\u201f\u2026]|\?[\w~`@#$%\^&*(_=+{[|><]|…[\w~`@#$%\^&*(_=+{[><]/.test(str.slice(i - 1, i + 1)); - }; - - var knownScrollbarWidth; - function scrollbarWidth(measure) { - if (knownScrollbarWidth != null) return knownScrollbarWidth; - var test = elt("div", null, null, "width: 50px; height: 50px; overflow-x: scroll"); - removeChildrenAndAdd(measure, test); - if (test.offsetWidth) - knownScrollbarWidth = test.offsetHeight - test.clientHeight; - return knownScrollbarWidth || 0; - } - - var zwspSupported; - function zeroWidthElement(measure) { - if (zwspSupported == null) { - var test = elt("span", "\u200b"); - removeChildrenAndAdd(measure, elt("span", [test, document.createTextNode("x")])); - if (measure.firstChild.offsetHeight != 0) - zwspSupported = test.offsetWidth <= 1 && test.offsetHeight > 2 && !ie_lt8; - } - if (zwspSupported) return elt("span", "\u200b"); - else return elt("span", "\u00a0", null, "display: inline-block; width: 1px; margin-right: -1px"); - } - - // See if "".split is the broken IE version, if so, provide an - // alternative way to split lines. - var splitLines = "\n\nb".split(/\n/).length != 3 ? function(string) { - var pos = 0, result = [], l = string.length; - while (pos <= l) { - var nl = string.indexOf("\n", pos); - if (nl == -1) nl = string.length; - var line = string.slice(pos, string.charAt(nl - 1) == "\r" ? nl - 1 : nl); - var rt = line.indexOf("\r"); - if (rt != -1) { - result.push(line.slice(0, rt)); - pos += rt + 1; - } else { - result.push(line); - pos = nl + 1; - } - } - return result; - } : function(string){return string.split(/\r\n?|\n/);}; - CodeMirror.splitLines = splitLines; - - var hasSelection = window.getSelection ? function(te) { - try { return te.selectionStart != te.selectionEnd; } - catch(e) { return false; } - } : function(te) { - try {var range = te.ownerDocument.selection.createRange();} - catch(e) {} - if (!range || range.parentElement() != te) return false; - return range.compareEndPoints("StartToEnd", range) != 0; - }; - - var hasCopyEvent = (function() { - var e = elt("div"); - if ("oncopy" in e) return true; - e.setAttribute("oncopy", "return;"); - return typeof e.oncopy == 'function'; - })(); - - // KEY NAMING - - var keyNames = {3: "Enter", 8: "Backspace", 9: "Tab", 13: "Enter", 16: "Shift", 17: "Ctrl", 18: "Alt", - 19: "Pause", 20: "CapsLock", 27: "Esc", 32: "Space", 33: "PageUp", 34: "PageDown", 35: "End", - 36: "Home", 37: "Left", 38: "Up", 39: "Right", 40: "Down", 44: "PrintScrn", 45: "Insert", - 46: "Delete", 59: ";", 91: "Mod", 92: "Mod", 93: "Mod", 109: "-", 107: "=", 127: "Delete", - 186: ";", 187: "=", 188: ",", 189: "-", 190: ".", 191: "/", 192: "`", 219: "[", 220: "\\", - 221: "]", 222: "'", 63276: "PageUp", 63277: "PageDown", 63275: "End", 63273: "Home", - 63234: "Left", 63232: "Up", 63235: "Right", 63233: "Down", 63302: "Insert", 63272: "Delete"}; - CodeMirror.keyNames = keyNames; - (function() { - // Number keys - for (var i = 0; i < 10; i++) keyNames[i + 48] = String(i); - // Alphabetic keys - for (var i = 65; i <= 90; i++) keyNames[i] = String.fromCharCode(i); - // Function keys - for (var i = 1; i <= 12; i++) keyNames[i + 111] = keyNames[i + 63235] = "F" + i; - })(); - - // BIDI HELPERS - - function iterateBidiSections(order, from, to, f) { - if (!order) return f(from, to, "ltr"); - var found = false; - for (var i = 0; i < order.length; ++i) { - var part = order[i]; - if (part.from < to && part.to > from || from == to && part.to == from) { - f(Math.max(part.from, from), Math.min(part.to, to), part.level == 1 ? "rtl" : "ltr"); - found = true; - } - } - if (!found) f(from, to, "ltr"); - } - - function bidiLeft(part) { return part.level % 2 ? part.to : part.from; } - function bidiRight(part) { return part.level % 2 ? part.from : part.to; } - - function lineLeft(line) { var order = getOrder(line); return order ? bidiLeft(order[0]) : 0; } - function lineRight(line) { - var order = getOrder(line); - if (!order) return line.text.length; - return bidiRight(lst(order)); - } - - function lineStart(cm, lineN) { - var line = getLine(cm.doc, lineN); - var visual = visualLine(cm.doc, line); - if (visual != line) lineN = lineNo(visual); - var order = getOrder(visual); - var ch = !order ? 0 : order[0].level % 2 ? lineRight(visual) : lineLeft(visual); - return Pos(lineN, ch); - } - function lineEnd(cm, lineN) { - var merged, line; - while (merged = collapsedSpanAtEnd(line = getLine(cm.doc, lineN))) - lineN = merged.find().to.line; - var order = getOrder(line); - var ch = !order ? line.text.length : order[0].level % 2 ? lineLeft(line) : lineRight(line); - return Pos(lineN, ch); - } - - function compareBidiLevel(order, a, b) { - var linedir = order[0].level; - if (a == linedir) return true; - if (b == linedir) return false; - return a < b; - } - var bidiOther; - function getBidiPartAt(order, pos) { - for (var i = 0, found; i < order.length; ++i) { - var cur = order[i]; - if (cur.from < pos && cur.to > pos) { bidiOther = null; return i; } - if (cur.from == pos || cur.to == pos) { - if (found == null) { - found = i; - } else if (compareBidiLevel(order, cur.level, order[found].level)) { - bidiOther = found; - return i; - } else { - bidiOther = i; - return found; - } - } - } - bidiOther = null; - return found; - } - - function moveInLine(line, pos, dir, byUnit) { - if (!byUnit) return pos + dir; - do pos += dir; - while (pos > 0 && isExtendingChar.test(line.text.charAt(pos))); - return pos; - } - - // This is somewhat involved. It is needed in order to move - // 'visually' through bi-directional text -- i.e., pressing left - // should make the cursor go left, even when in RTL text. The - // tricky part is the 'jumps', where RTL and LTR text touch each - // other. This often requires the cursor offset to move more than - // one unit, in order to visually move one unit. - function moveVisually(line, start, dir, byUnit) { - var bidi = getOrder(line); - if (!bidi) return moveLogically(line, start, dir, byUnit); - var pos = getBidiPartAt(bidi, start), part = bidi[pos]; - var target = moveInLine(line, start, part.level % 2 ? -dir : dir, byUnit); - - for (;;) { - if (target > part.from && target < part.to) return target; - if (target == part.from || target == part.to) { - if (getBidiPartAt(bidi, target) == pos) return target; - part = bidi[pos += dir]; - return (dir > 0) == part.level % 2 ? part.to : part.from; - } else { - part = bidi[pos += dir]; - if (!part) return null; - if ((dir > 0) == part.level % 2) - target = moveInLine(line, part.to, -1, byUnit); - else - target = moveInLine(line, part.from, 1, byUnit); - } - } - } - - function moveLogically(line, start, dir, byUnit) { - var target = start + dir; - if (byUnit) while (target > 0 && isExtendingChar.test(line.text.charAt(target))) target += dir; - return target < 0 || target > line.text.length ? null : target; - } - - // Bidirectional ordering algorithm - // See http://unicode.org/reports/tr9/tr9-13.html for the algorithm - // that this (partially) implements. - - // One-char codes used for character types: - // L (L): Left-to-Right - // R (R): Right-to-Left - // r (AL): Right-to-Left Arabic - // 1 (EN): European Number - // + (ES): European Number Separator - // % (ET): European Number Terminator - // n (AN): Arabic Number - // , (CS): Common Number Separator - // m (NSM): Non-Spacing Mark - // b (BN): Boundary Neutral - // s (B): Paragraph Separator - // t (S): Segment Separator - // w (WS): Whitespace - // N (ON): Other Neutrals - - // Returns null if characters are ordered as they appear - // (left-to-right), or an array of sections ({from, to, level} - // objects) in the order in which they occur visually. - var bidiOrdering = (function() { - // Character types for codepoints 0 to 0xff - var lowTypes = "bbbbbbbbbtstwsbbbbbbbbbbbbbbssstwNN%%%NNNNNN,N,N1111111111NNNNNNNLLLLLLLLLLLLLLLLLLLLLLLLLLNNNNNNLLLLLLLLLLLLLLLLLLLLLLLLLLNNNNbbbbbbsbbbbbbbbbbbbbbbbbbbbbbbbbb,N%%%%NNNNLNNNNN%%11NLNNN1LNNNNNLLLLLLLLLLLLLLLLLLLLLLLNLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLNLLLLLLLL"; - // Character types for codepoints 0x600 to 0x6ff - var arabicTypes = "rrrrrrrrrrrr,rNNmmmmmmrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrmmmmmmmmmmmmmmrrrrrrrnnnnnnnnnn%nnrrrmrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrmmmmmmmmmmmmmmmmmmmNmmmmrrrrrrrrrrrrrrrrrr"; - function charType(code) { - if (code <= 0xff) return lowTypes.charAt(code); - else if (0x590 <= code && code <= 0x5f4) return "R"; - else if (0x600 <= code && code <= 0x6ff) return arabicTypes.charAt(code - 0x600); - else if (0x700 <= code && code <= 0x8ac) return "r"; - else return "L"; - } - - var bidiRE = /[\u0590-\u05f4\u0600-\u06ff\u0700-\u08ac]/; - var isNeutral = /[stwN]/, isStrong = /[LRr]/, countsAsLeft = /[Lb1n]/, countsAsNum = /[1n]/; - // Browsers seem to always treat the boundaries of block elements as being L. - var outerType = "L"; - - return function(str) { - if (!bidiRE.test(str)) return false; - var len = str.length, types = []; - for (var i = 0, type; i < len; ++i) - types.push(type = charType(str.charCodeAt(i))); - - // W1. Examine each non-spacing mark (NSM) in the level run, and - // change the type of the NSM to the type of the previous - // character. If the NSM is at the start of the level run, it will - // get the type of sor. - for (var i = 0, prev = outerType; i < len; ++i) { - var type = types[i]; - if (type == "m") types[i] = prev; - else prev = type; - } - - // W2. Search backwards from each instance of a European number - // until the first strong type (R, L, AL, or sor) is found. If an - // AL is found, change the type of the European number to Arabic - // number. - // W3. Change all ALs to R. - for (var i = 0, cur = outerType; i < len; ++i) { - var type = types[i]; - if (type == "1" && cur == "r") types[i] = "n"; - else if (isStrong.test(type)) { cur = type; if (type == "r") types[i] = "R"; } - } - - // W4. A single European separator between two European numbers - // changes to a European number. A single common separator between - // two numbers of the same type changes to that type. - for (var i = 1, prev = types[0]; i < len - 1; ++i) { - var type = types[i]; - if (type == "+" && prev == "1" && types[i+1] == "1") types[i] = "1"; - else if (type == "," && prev == types[i+1] && - (prev == "1" || prev == "n")) types[i] = prev; - prev = type; - } - - // W5. A sequence of European terminators adjacent to European - // numbers changes to all European numbers. - // W6. Otherwise, separators and terminators change to Other - // Neutral. - for (var i = 0; i < len; ++i) { - var type = types[i]; - if (type == ",") types[i] = "N"; - else if (type == "%") { - for (var end = i + 1; end < len && types[end] == "%"; ++end) {} - var replace = (i && types[i-1] == "!") || (end < len - 1 && types[end] == "1") ? "1" : "N"; - for (var j = i; j < end; ++j) types[j] = replace; - i = end - 1; - } - } - - // W7. Search backwards from each instance of a European number - // until the first strong type (R, L, or sor) is found. If an L is - // found, then change the type of the European number to L. - for (var i = 0, cur = outerType; i < len; ++i) { - var type = types[i]; - if (cur == "L" && type == "1") types[i] = "L"; - else if (isStrong.test(type)) cur = type; - } - - // N1. A sequence of neutrals takes the direction of the - // surrounding strong text if the text on both sides has the same - // direction. European and Arabic numbers act as if they were R in - // terms of their influence on neutrals. Start-of-level-run (sor) - // and end-of-level-run (eor) are used at level run boundaries. - // N2. Any remaining neutrals take the embedding direction. - for (var i = 0; i < len; ++i) { - if (isNeutral.test(types[i])) { - for (var end = i + 1; end < len && isNeutral.test(types[end]); ++end) {} - var before = (i ? types[i-1] : outerType) == "L"; - var after = (end < len - 1 ? types[end] : outerType) == "L"; - var replace = before || after ? "L" : "R"; - for (var j = i; j < end; ++j) types[j] = replace; - i = end - 1; - } - } - - // Here we depart from the documented algorithm, in order to avoid - // building up an actual levels array. Since there are only three - // levels (0, 1, 2) in an implementation that doesn't take - // explicit embedding into account, we can build up the order on - // the fly, without following the level-based algorithm. - var order = [], m; - for (var i = 0; i < len;) { - if (countsAsLeft.test(types[i])) { - var start = i; - for (++i; i < len && countsAsLeft.test(types[i]); ++i) {} - order.push({from: start, to: i, level: 0}); - } else { - var pos = i, at = order.length; - for (++i; i < len && types[i] != "L"; ++i) {} - for (var j = pos; j < i;) { - if (countsAsNum.test(types[j])) { - if (pos < j) order.splice(at, 0, {from: pos, to: j, level: 1}); - var nstart = j; - for (++j; j < i && countsAsNum.test(types[j]); ++j) {} - order.splice(at, 0, {from: nstart, to: j, level: 2}); - pos = j; - } else ++j; - } - if (pos < i) order.splice(at, 0, {from: pos, to: i, level: 1}); - } - } - if (order[0].level == 1 && (m = str.match(/^\s+/))) { - order[0].from = m[0].length; - order.unshift({from: 0, to: m[0].length, level: 0}); - } - if (lst(order).level == 1 && (m = str.match(/\s+$/))) { - lst(order).to -= m[0].length; - order.push({from: len - m[0].length, to: len, level: 0}); - } - if (order[0].level != lst(order).level) - order.push({from: len, to: len, level: order[0].level}); - - return order; - }; - })(); - - // THE END - - CodeMirror.version = "3.20.0"; - - return CodeMirror; -})(); diff --git a/plugins/tiddlywiki/codemirror/files/tiddlywiki.files b/plugins/tiddlywiki/codemirror/files/tiddlywiki.files deleted file mode 100644 index 6c7d19784..000000000 --- a/plugins/tiddlywiki/codemirror/files/tiddlywiki.files +++ /dev/null @@ -1,54 +0,0 @@ -{ - "tiddlers": [ - { - "file": "codemirror.js", - "fields": { - "type": "application/javascript", - "title": "$:/plugins/tiddlywiki/codemirror/codemirror.js", - "module-type": "library" - } - },{ - "file": "codemirror.css", - "fields": { - "type": "text/css", - "title": "$:/plugins/tiddlywiki/codemirror/codemirror.css", - "tags": "[[$:/tags/stylesheet]]" - } - },{ - "file": "addon/dialog.css", - "fields": { - "type": "text/css", - "title": "$:/plugins/tiddlywiki/codemirror/addon/dialog.css", - "tags": "[[$:/tags/stylesheet]]" - } - },{ - "file": "addon/dialog.js", - "fields": { - "type": "application/javascript", - "title": "$:/plugins/tiddlywiki/codemirror/addon/dialog.js", - "module-type": "library" - } - },{ - "file": "addon/searchcursor.js", - "fields": { - "type": "application/javascript", - "title": "$:/plugins/tiddlywiki/codemirror/addon/searchcursor.js", - "module-type": "library" - } - },{ - "file": "keymap/vim.js", - "fields": { - "type": "application/javascript", - "title": "$:/plugins/tiddlywiki/codemirror/keymap/vim.js", - "module-type": "library" - } - },{ - "file": "keymap/emacs.js", - "fields": { - "type": "application/javascript", - "title": "$:/plugins/tiddlywiki/codemirror/keymap/emacs.js", - "module-type": "library" - } - } - ] -} diff --git a/plugins/tiddlywiki/codemirror/files/addon/dialog.css b/plugins/tiddlywiki/codemirror/lib/addon/dialog/dialog.css similarity index 100% rename from plugins/tiddlywiki/codemirror/files/addon/dialog.css rename to plugins/tiddlywiki/codemirror/lib/addon/dialog/dialog.css diff --git a/plugins/tiddlywiki/codemirror/files/addon/dialog.js b/plugins/tiddlywiki/codemirror/lib/addon/dialog/dialog.js similarity index 90% rename from plugins/tiddlywiki/codemirror/files/addon/dialog.js rename to plugins/tiddlywiki/codemirror/lib/addon/dialog/dialog.js index 499964fdb..586b7370d 100644 --- a/plugins/tiddlywiki/codemirror/files/addon/dialog.js +++ b/plugins/tiddlywiki/codemirror/lib/addon/dialog/dialog.js @@ -1,6 +1,13 @@ // Open simple dialogs on top of an editor. Relies on dialog.css. -(function() { +(function(mod) { + if (typeof exports == "object" && typeof module == "object") // CommonJS + mod(require("../../lib/codemirror")); + else if (typeof define == "function" && define.amd) // AMD + define(["../../lib/codemirror"], mod); + else // Plain browser env + mod(CodeMirror); +})(function(CodeMirror) { function dialogDiv(cm, template, bottom) { var wrap = cm.getWrapperElement(); var dialog; @@ -35,9 +42,11 @@ } var inp = dialog.getElementsByTagName("input")[0], button; if (inp) { + if (options && options.value) inp.value = options.value; CodeMirror.on(inp, "keydown", function(e) { if (options && options.onKeyDown && options.onKeyDown(e, inp.value, close)) { return; } if (e.keyCode == 13 || e.keyCode == 27) { + inp.blur(); CodeMirror.e_stop(e); close(); me.focus(); @@ -118,4 +127,4 @@ if (duration) doneTimer = setTimeout(close, options.duration); }); -})(); +}); diff --git a/plugins/tiddlywiki/codemirror/lib/addon/edit/matchbrackets.js b/plugins/tiddlywiki/codemirror/lib/addon/edit/matchbrackets.js new file mode 100644 index 000000000..dcdde81df --- /dev/null +++ b/plugins/tiddlywiki/codemirror/lib/addon/edit/matchbrackets.js @@ -0,0 +1,117 @@ +(function(mod) { + if (typeof exports == "object" && typeof module == "object") // CommonJS + mod(require("../../lib/codemirror")); + else if (typeof define == "function" && define.amd) // AMD + define(["../../lib/codemirror"], mod); + else // Plain browser env + mod(CodeMirror); +})(function(CodeMirror) { + var ie_lt8 = /MSIE \d/.test(navigator.userAgent) && + (document.documentMode == null || document.documentMode < 8); + + var Pos = CodeMirror.Pos; + + var matching = {"(": ")>", ")": "(<", "[": "]>", "]": "[<", "{": "}>", "}": "{<"}; + + function findMatchingBracket(cm, where, strict, config) { + var line = cm.getLineHandle(where.line), pos = where.ch - 1; + var match = (pos >= 0 && matching[line.text.charAt(pos)]) || matching[line.text.charAt(++pos)]; + if (!match) return null; + var dir = match.charAt(1) == ">" ? 1 : -1; + if (strict && (dir > 0) != (pos == where.ch)) return null; + var style = cm.getTokenTypeAt(Pos(where.line, pos + 1)); + + var found = scanForBracket(cm, Pos(where.line, pos + (dir > 0 ? 1 : 0)), dir, style || null, config); + if (found == null) return null; + return {from: Pos(where.line, pos), to: found && found.pos, + match: found && found.ch == match.charAt(0), forward: dir > 0}; + } + + // bracketRegex is used to specify which type of bracket to scan + // should be a regexp, e.g. /[[\]]/ + // + // Note: If "where" is on an open bracket, then this bracket is ignored. + // + // Returns false when no bracket was found, null when it reached + // maxScanLines and gave up + function scanForBracket(cm, where, dir, style, config) { + var maxScanLen = (config && config.maxScanLineLength) || 10000; + var maxScanLines = (config && config.maxScanLines) || 1000; + + var stack = []; + var re = config && config.bracketRegex ? config.bracketRegex : /[(){}[\]]/; + var lineEnd = dir > 0 ? Math.min(where.line + maxScanLines, cm.lastLine() + 1) + : Math.max(cm.firstLine() - 1, where.line - maxScanLines); + for (var lineNo = where.line; lineNo != lineEnd; lineNo += dir) { + var line = cm.getLine(lineNo); + if (!line) continue; + var pos = dir > 0 ? 0 : line.length - 1, end = dir > 0 ? line.length : -1; + if (line.length > maxScanLen) continue; + if (lineNo == where.line) pos = where.ch - (dir < 0 ? 1 : 0); + for (; pos != end; pos += dir) { + var ch = line.charAt(pos); + if (re.test(ch) && (style === undefined || cm.getTokenTypeAt(Pos(lineNo, pos + 1)) == style)) { + var match = matching[ch]; + if ((match.charAt(1) == ">") == (dir > 0)) stack.push(ch); + else if (!stack.length) return {pos: Pos(lineNo, pos), ch: ch}; + else stack.pop(); + } + } + } + return lineNo - dir == (dir > 0 ? cm.lastLine() : cm.firstLine()) ? false : null; + } + + function matchBrackets(cm, autoclear, config) { + // Disable brace matching in long lines, since it'll cause hugely slow updates + var maxHighlightLen = cm.state.matchBrackets.maxHighlightLineLength || 1000; + var marks = [], ranges = cm.listSelections(); + for (var i = 0; i < ranges.length; i++) { + var match = ranges[i].empty() && findMatchingBracket(cm, ranges[i].head, false, config); + if (match && cm.getLine(match.from.line).length <= maxHighlightLen) { + var style = match.match ? "CodeMirror-matchingbracket" : "CodeMirror-nonmatchingbracket"; + marks.push(cm.markText(match.from, Pos(match.from.line, match.from.ch + 1), {className: style})); + if (match.to && cm.getLine(match.to.line).length <= maxHighlightLen) + marks.push(cm.markText(match.to, Pos(match.to.line, match.to.ch + 1), {className: style})); + } + } + + if (marks.length) { + // Kludge to work around the IE bug from issue #1193, where text + // input stops going to the textare whever this fires. + if (ie_lt8 && cm.state.focused) cm.display.input.focus(); + + var clear = function() { + cm.operation(function() { + for (var i = 0; i < marks.length; i++) marks[i].clear(); + }); + }; + if (autoclear) setTimeout(clear, 800); + else return clear; + } + } + + var currentlyHighlighted = null; + function doMatchBrackets(cm) { + cm.operation(function() { + if (currentlyHighlighted) {currentlyHighlighted(); currentlyHighlighted = null;} + currentlyHighlighted = matchBrackets(cm, false, cm.state.matchBrackets); + }); + } + + CodeMirror.defineOption("matchBrackets", false, function(cm, val, old) { + if (old && old != CodeMirror.Init) + cm.off("cursorActivity", doMatchBrackets); + if (val) { + cm.state.matchBrackets = typeof val == "object" ? val : {}; + cm.on("cursorActivity", doMatchBrackets); + } + }); + + CodeMirror.defineExtension("matchBrackets", function() {matchBrackets(this, true);}); + CodeMirror.defineExtension("findMatchingBracket", function(pos, strict, config){ + return findMatchingBracket(this, pos, strict, config); + }); + CodeMirror.defineExtension("scanForBracket", function(pos, dir, style, config){ + return scanForBracket(this, pos, dir, style, config); + }); +}); diff --git a/plugins/tiddlywiki/codemirror/files/addon/searchcursor.js b/plugins/tiddlywiki/codemirror/lib/addon/search/searchcursor.js similarity index 57% rename from plugins/tiddlywiki/codemirror/files/addon/searchcursor.js rename to plugins/tiddlywiki/codemirror/lib/addon/search/searchcursor.js index c034d5865..899f44c4a 100644 --- a/plugins/tiddlywiki/codemirror/files/addon/searchcursor.js +++ b/plugins/tiddlywiki/codemirror/lib/addon/search/searchcursor.js @@ -1,4 +1,12 @@ -(function(){ +(function(mod) { + if (typeof exports == "object" && typeof module == "object") // CommonJS + mod(require("../../lib/codemirror")); + else if (typeof define == "function" && define.amd) // AMD + define(["../../lib/codemirror"], mod); + else // Plain browser env + mod(CodeMirror); +})(function(CodeMirror) { + "use strict"; var Pos = CodeMirror.Pos; function SearchCursor(doc, query, pos, caseFold) { @@ -47,6 +55,7 @@ match: match}; }; } else { // String query + var origQuery = query; if (caseFold) query = query.toLowerCase(); var fold = caseFold ? function(str){return str.toLowerCase();} : function(str){return str;}; var target = query.split("\n"); @@ -58,33 +67,45 @@ this.matches = function() {}; } else { this.matches = function(reverse, pos) { - var line = fold(doc.getLine(pos.line)), len = query.length, match; - if (reverse ? (pos.ch >= len && (match = line.lastIndexOf(query, pos.ch - len)) != -1) - : (match = line.indexOf(query, pos.ch)) != -1) - return {from: Pos(pos.line, match), - to: Pos(pos.line, match + len)}; + if (reverse) { + var orig = doc.getLine(pos.line).slice(0, pos.ch), line = fold(orig); + var match = line.lastIndexOf(query); + if (match > -1) { + match = adjustPos(orig, line, match); + return {from: Pos(pos.line, match), to: Pos(pos.line, match + origQuery.length)}; + } + } else { + var orig = doc.getLine(pos.line).slice(pos.ch), line = fold(orig); + var match = line.indexOf(query); + if (match > -1) { + match = adjustPos(orig, line, match) + pos.ch; + return {from: Pos(pos.line, match), to: Pos(pos.line, match + origQuery.length)}; + } + } }; } } else { + var origTarget = origQuery.split("\n"); this.matches = function(reverse, pos) { - var ln = pos.line, idx = (reverse ? target.length - 1 : 0), match = target[idx], line = fold(doc.getLine(ln)); - var offsetA = (reverse ? line.indexOf(match) + match.length : line.lastIndexOf(match)); - if (reverse ? offsetA > pos.ch || offsetA != match.length - : offsetA < pos.ch || offsetA != line.length - match.length) - return; - for (;;) { - if (reverse ? !ln : ln == doc.lineCount() - 1) return; - line = fold(doc.getLine(ln += reverse ? -1 : 1)); - match = target[reverse ? --idx : ++idx]; - if (idx > 0 && idx < target.length - 1) { - if (line != match) return; - else continue; - } - var offsetB = (reverse ? line.lastIndexOf(match) : line.indexOf(match) + match.length); - if (reverse ? offsetB != line.length - match.length : offsetB != match.length) - return; - var start = Pos(pos.line, offsetA), end = Pos(ln, offsetB); - return {from: reverse ? end : start, to: reverse ? start : end}; + var last = target.length - 1; + if (reverse) { + if (pos.line - (target.length - 1) < doc.firstLine()) return; + if (fold(doc.getLine(pos.line).slice(0, origTarget[last].length)) != target[target.length - 1]) return; + var to = Pos(pos.line, origTarget[last].length); + for (var ln = pos.line - 1, i = last - 1; i >= 1; --i, --ln) + if (target[i] != fold(doc.getLine(ln))) return; + var line = doc.getLine(ln), cut = line.length - origTarget[0].length; + if (fold(line.slice(cut)) != target[0]) return; + return {from: Pos(ln, cut), to: to}; + } else { + if (pos.line + (target.length - 1) > doc.lastLine()) return; + var line = doc.getLine(pos.line), cut = line.length - origTarget[0].length; + if (fold(line.slice(cut)) != target[0]) return; + var from = Pos(pos.line, cut); + for (var ln = pos.line + 1, i = 1; i < last; ++i, ++ln) + if (target[i] != fold(doc.getLine(ln))) return; + if (doc.getLine(ln).slice(0, origTarget[last].length) != target[last]) return; + return {from: from, to: Pos(ln, origTarget[last].length)}; } }; } @@ -106,7 +127,6 @@ for (;;) { if (this.pos = this.matches(reverse, pos)) { - if (!this.pos.from || !this.pos.to) { console.log(this.matches, this.pos); } this.atOccurrence = true; return this.pos.match || true; } @@ -134,10 +154,33 @@ } }; + // Maps a position in a case-folded line back to a position in the original line + // (compensating for codepoints increasing in number during folding) + function adjustPos(orig, folded, pos) { + if (orig.length == folded.length) return pos; + for (var pos1 = Math.min(pos, orig.length);;) { + var len1 = orig.slice(0, pos1).toLowerCase().length; + if (len1 < pos) ++pos1; + else if (len1 > pos) --pos1; + else return pos1; + } + } + CodeMirror.defineExtension("getSearchCursor", function(query, pos, caseFold) { return new SearchCursor(this.doc, query, pos, caseFold); }); CodeMirror.defineDocExtension("getSearchCursor", function(query, pos, caseFold) { return new SearchCursor(this, query, pos, caseFold); }); -})(); + + CodeMirror.defineExtension("selectMatches", function(query, caseFold) { + var ranges = [], next; + var cur = this.getSearchCursor(query, this.getCursor("from"), caseFold); + while (next = cur.findNext()) { + if (CodeMirror.cmpPos(cur.to(), this.getCursor("to")) > 0) break; + ranges.push({anchor: cur.from(), head: cur.to()}); + } + if (ranges.length) + this.setSelections(ranges, 0); + }); +}); diff --git a/plugins/tiddlywiki/codemirror/files/codemirror.css b/plugins/tiddlywiki/codemirror/lib/codemirror.css similarity index 89% rename from plugins/tiddlywiki/codemirror/files/codemirror.css rename to plugins/tiddlywiki/codemirror/lib/codemirror.css index 930818972..098a317a2 100644 --- a/plugins/tiddlywiki/codemirror/files/codemirror.css +++ b/plugins/tiddlywiki/codemirror/lib/codemirror.css @@ -32,18 +32,18 @@ } .CodeMirror-linenumbers {} .CodeMirror-linenumber { - font-size: 12px; - min-width: 30px; - padding: 0 2px 0 2px; + padding: 0 3px 0 5px; + min-width: 20px; text-align: right; color: #999; + -moz-box-sizing: content-box; + box-sizing: content-box; } /* CURSOR */ .CodeMirror div.CodeMirror-cursor { border-left: 1px solid black; - z-index: 3; } /* Shown when moving in bi-directional text */ .CodeMirror div.CodeMirror-secondarycursor { @@ -53,24 +53,29 @@ width: auto; border: 0; background: #7e7; - z-index: 1; } /* Can style cursor different in overwrite (non-insert) mode */ -.CodeMirror div.CodeMirror-cursor.CodeMirror-overwrite {} +div.CodeMirror-overwrite div.CodeMirror-cursor {} .cm-tab { display: inline-block; } +.CodeMirror-ruler { + border-left: 1px solid #ccc; + position: absolute; +} + /* DEFAULT THEME */ .cm-s-default .cm-keyword {color: #708;} .cm-s-default .cm-atom {color: #219;} .cm-s-default .cm-number {color: #164;} .cm-s-default .cm-def {color: #00f;} -.cm-s-default .cm-variable {color: black;} +.cm-s-default .cm-variable, +.cm-s-default .cm-punctuation, +.cm-s-default .cm-property, +.cm-s-default .cm-operator {} .cm-s-default .cm-variable-2 {color: #05a;} .cm-s-default .cm-variable-3 {color: #085;} -.cm-s-default .cm-property {color: black;} -.cm-s-default .cm-operator {color: black;} .cm-s-default .cm-comment {color: #a50;} .cm-s-default .cm-string {color: #a11;} .cm-s-default .cm-string-2 {color: #f50;} @@ -115,7 +120,7 @@ div.CodeMirror span.CodeMirror-nonmatchingbracket {color: #f22;} /* 30px is the magic margin used to hide the element's real scrollbars */ /* See overflow: hidden in .CodeMirror */ margin-bottom: -30px; margin-right: -30px; - padding-bottom: 30px; padding-right: 30px; + padding-bottom: 30px; height: 100%; outline: none; /* Prevent dragging from highlighting the element */ position: relative; @@ -124,6 +129,9 @@ div.CodeMirror span.CodeMirror-nonmatchingbracket {color: #f22;} } .CodeMirror-sizer { position: relative; + border-right: 30px solid transparent; + -moz-box-sizing: content-box; + box-sizing: content-box; } /* The fake, visible scrollbars. Used to force redraw during scrolling @@ -198,16 +206,7 @@ div.CodeMirror span.CodeMirror-nonmatchingbracket {color: #f22;} white-space: pre-wrap; word-break: normal; } -.CodeMirror-code pre { - border-right: 30px solid transparent; - width: -webkit-fit-content; - width: -moz-fit-content; - width: fit-content; -} -.CodeMirror-wrap .CodeMirror-code pre { - border-right: none; - width: auto; -} + .CodeMirror-linebackground { position: absolute; left: 0; right: 0; top: 0; bottom: 0; @@ -237,16 +236,22 @@ div.CodeMirror span.CodeMirror-nonmatchingbracket {color: #f22;} .CodeMirror div.CodeMirror-cursor { position: absolute; - visibility: hidden; border-right: none; width: 0; } -.CodeMirror-focused div.CodeMirror-cursor { + +div.CodeMirror-cursors { + visibility: hidden; + position: relative; + z-index: 1; +} +.CodeMirror-focused div.CodeMirror-cursors { visibility: visible; } .CodeMirror-selected { background: #d9d9d9; } .CodeMirror-focused .CodeMirror-selected { background: #d7d4f0; } +.CodeMirror-crosshair { cursor: crosshair; } .cm-searching { background: #ffa; @@ -256,9 +261,12 @@ div.CodeMirror span.CodeMirror-nonmatchingbracket {color: #f22;} /* IE7 hack to prevent it from returning funny offsetTops on the spans */ .CodeMirror span { *vertical-align: text-bottom; } +/* Used to force a border model for a node */ +.cm-force-border { padding-right: .1px; } + @media print { /* Hide the cursor when printing */ - .CodeMirror div.CodeMirror-cursor { + .CodeMirror div.CodeMirror-cursors { visibility: hidden; } } diff --git a/plugins/tiddlywiki/codemirror/lib/codemirror.js b/plugins/tiddlywiki/codemirror/lib/codemirror.js new file mode 100644 index 000000000..4a843d3f6 --- /dev/null +++ b/plugins/tiddlywiki/codemirror/lib/codemirror.js @@ -0,0 +1,7587 @@ +// This is CodeMirror (http://codemirror.net), a code editor +// implemented in JavaScript on top of the browser's DOM. +// +// You can find some technical background for some of the code below +// at http://marijnhaverbeke.nl/blog/#cm-internals . + +(function(mod) { + if (typeof exports == "object" && typeof module == "object") // CommonJS + module.exports = mod(); + else if (typeof define == "function" && define.amd) // AMD + return define([], mod); + else // Plain browser env + this.CodeMirror = mod(); +})(function() { + "use strict"; + + // BROWSER SNIFFING + + // Kludges for bugs and behavior differences that can't be feature + // detected are enabled based on userAgent etc sniffing. + + var gecko = /gecko\/\d/i.test(navigator.userAgent); + // ie_uptoN means Internet Explorer version N or lower + var ie_upto10 = /MSIE \d/.test(navigator.userAgent); + var ie_upto7 = ie_upto10 && (document.documentMode == null || document.documentMode < 8); + var ie_upto8 = ie_upto10 && (document.documentMode == null || document.documentMode < 9); + var ie_upto9 = ie_upto10 && (document.documentMode == null || document.documentMode < 10); + var ie_11up = /Trident\/([7-9]|\d{2,})\./.test(navigator.userAgent); + var ie = ie_upto10 || ie_11up; + var webkit = /WebKit\//.test(navigator.userAgent); + var qtwebkit = webkit && /Qt\/\d+\.\d+/.test(navigator.userAgent); + var chrome = /Chrome\//.test(navigator.userAgent); + var presto = /Opera\//.test(navigator.userAgent); + var safari = /Apple Computer/.test(navigator.vendor); + var khtml = /KHTML\//.test(navigator.userAgent); + var mac_geMountainLion = /Mac OS X 1\d\D([8-9]|\d\d)\D/.test(navigator.userAgent); + var phantom = /PhantomJS/.test(navigator.userAgent); + + var ios = /AppleWebKit/.test(navigator.userAgent) && /Mobile\/\w+/.test(navigator.userAgent); + // This is woefully incomplete. Suggestions for alternative methods welcome. + var mobile = ios || /Android|webOS|BlackBerry|Opera Mini|Opera Mobi|IEMobile/i.test(navigator.userAgent); + var mac = ios || /Mac/.test(navigator.platform); + var windows = /win/i.test(navigator.platform); + + var presto_version = presto && navigator.userAgent.match(/Version\/(\d*\.\d*)/); + if (presto_version) presto_version = Number(presto_version[1]); + if (presto_version && presto_version >= 15) { presto = false; webkit = true; } + // Some browsers use the wrong event properties to signal cmd/ctrl on OS X + var flipCtrlCmd = mac && (qtwebkit || presto && (presto_version == null || presto_version < 12.11)); + var captureRightClick = gecko || (ie && !ie_upto8); + + // Optimize some code when these features are not used. + var sawReadOnlySpans = false, sawCollapsedSpans = false; + + // EDITOR CONSTRUCTOR + + // A CodeMirror instance represents an editor. This is the object + // that user code is usually dealing with. + + function CodeMirror(place, options) { + if (!(this instanceof CodeMirror)) return new CodeMirror(place, options); + + this.options = options = options || {}; + // Determine effective options based on given values and defaults. + copyObj(defaults, options, false); + setGuttersForLineNumbers(options); + + var doc = options.value; + if (typeof doc == "string") doc = new Doc(doc, options.mode); + this.doc = doc; + + var display = this.display = new Display(place, doc); + display.wrapper.CodeMirror = this; + updateGutters(this); + themeChanged(this); + if (options.lineWrapping) + this.display.wrapper.className += " CodeMirror-wrap"; + if (options.autofocus && !mobile) focusInput(this); + + this.state = { + keyMaps: [], // stores maps added by addKeyMap + overlays: [], // highlighting overlays, as added by addOverlay + modeGen: 0, // bumped when mode/overlay changes, used to invalidate highlighting info + overwrite: false, focused: false, + suppressEdits: false, // used to disable editing during key handlers when in readOnly mode + pasteIncoming: false, cutIncoming: false, // help recognize paste/cut edits in readInput + draggingText: false, + highlight: new Delayed() // stores highlight worker timeout + }; + + // Override magic textarea content restore that IE sometimes does + // on our hidden textarea on reload + if (ie_upto10) setTimeout(bind(resetInput, this, true), 20); + + registerEventHandlers(this); + ensureGlobalHandlers(); + + var cm = this; + runInOp(this, function() { + cm.curOp.forceUpdate = true; + attachDoc(cm, doc); + + if ((options.autofocus && !mobile) || activeElt() == display.input) + setTimeout(bind(onFocus, cm), 20); + else + onBlur(cm); + + for (var opt in optionHandlers) if (optionHandlers.hasOwnProperty(opt)) + optionHandlers[opt](cm, options[opt], Init); + for (var i = 0; i < initHooks.length; ++i) initHooks[i](cm); + }); + } + + // DISPLAY CONSTRUCTOR + + // The display handles the DOM integration, both for input reading + // and content drawing. It holds references to DOM nodes and + // display-related state. + + function Display(place, doc) { + var d = this; + + // The semihidden textarea that is focused when the editor is + // focused, and receives input. + var input = d.input = elt("textarea", null, null, "position: absolute; padding: 0; width: 1px; height: 1em; outline: none"); + // The textarea is kept positioned near the cursor to prevent the + // fact that it'll be scrolled into view on input from scrolling + // our fake cursor out of view. On webkit, when wrap=off, paste is + // very slow. So make the area wide instead. + if (webkit) input.style.width = "1000px"; + else input.setAttribute("wrap", "off"); + // If border: 0; -- iOS fails to open keyboard (issue #1287) + if (ios) input.style.border = "1px solid black"; + input.setAttribute("autocorrect", "off"); input.setAttribute("autocapitalize", "off"); input.setAttribute("spellcheck", "false"); + + // Wraps and hides input textarea + d.inputDiv = elt("div", [input], null, "overflow: hidden; position: relative; width: 3px; height: 0px;"); + // The fake scrollbar elements. + d.scrollbarH = elt("div", [elt("div", null, null, "height: 100%; min-height: 1px")], "CodeMirror-hscrollbar"); + d.scrollbarV = elt("div", [elt("div", null, null, "min-width: 1px")], "CodeMirror-vscrollbar"); + // Covers bottom-right square when both scrollbars are present. + d.scrollbarFiller = elt("div", null, "CodeMirror-scrollbar-filler"); + // Covers bottom of gutter when coverGutterNextToScrollbar is on + // and h scrollbar is present. + d.gutterFiller = elt("div", null, "CodeMirror-gutter-filler"); + // Will contain the actual code, positioned to cover the viewport. + d.lineDiv = elt("div", null, "CodeMirror-code"); + // Elements are added to these to represent selection and cursors. + d.selectionDiv = elt("div", null, null, "position: relative; z-index: 1"); + d.cursorDiv = elt("div", null, "CodeMirror-cursors"); + // A visibility: hidden element used to find the size of things. + d.measure = elt("div", null, "CodeMirror-measure"); + // When lines outside of the viewport are measured, they are drawn in this. + d.lineMeasure = elt("div", null, "CodeMirror-measure"); + // Wraps everything that needs to exist inside the vertically-padded coordinate system + d.lineSpace = elt("div", [d.measure, d.lineMeasure, d.selectionDiv, d.cursorDiv, d.lineDiv], + null, "position: relative; outline: none"); + // Moved around its parent to cover visible view. + d.mover = elt("div", [elt("div", [d.lineSpace], "CodeMirror-lines")], null, "position: relative"); + // Set to the height of the document, allowing scrolling. + d.sizer = elt("div", [d.mover], "CodeMirror-sizer"); + // Behavior of elts with overflow: auto and padding is + // inconsistent across browsers. This is used to ensure the + // scrollable area is big enough. + d.heightForcer = elt("div", null, null, "position: absolute; height: " + scrollerCutOff + "px; width: 1px;"); + // Will contain the gutters, if any. + d.gutters = elt("div", null, "CodeMirror-gutters"); + d.lineGutter = null; + // Actual scrollable element. + d.scroller = elt("div", [d.sizer, d.heightForcer, d.gutters], "CodeMirror-scroll"); + d.scroller.setAttribute("tabIndex", "-1"); + // The element in which the editor lives. + d.wrapper = elt("div", [d.inputDiv, d.scrollbarH, d.scrollbarV, + d.scrollbarFiller, d.gutterFiller, d.scroller], "CodeMirror"); + + // Work around IE7 z-index bug (not perfect, hence IE7 not really being supported) + if (ie_upto7) { d.gutters.style.zIndex = -1; d.scroller.style.paddingRight = 0; } + // Needed to hide big blue blinking cursor on Mobile Safari + if (ios) input.style.width = "0px"; + if (!webkit) d.scroller.draggable = true; + // Needed to handle Tab key in KHTML + if (khtml) { d.inputDiv.style.height = "1px"; d.inputDiv.style.position = "absolute"; } + // Need to set a minimum width to see the scrollbar on IE7 (but must not set it on IE8). + if (ie_upto7) d.scrollbarH.style.minHeight = d.scrollbarV.style.minWidth = "18px"; + + if (place.appendChild) place.appendChild(d.wrapper); + else place(d.wrapper); + + // Current rendered range (may be bigger than the view window). + d.viewFrom = d.viewTo = doc.first; + // Information about the rendered lines. + d.view = []; + // Holds info about a single rendered line when it was rendered + // for measurement, while not in view. + d.externalMeasured = null; + // Empty space (in pixels) above the view + d.viewOffset = 0; + d.lastSizeC = 0; + d.updateLineNumbers = null; + + // Used to only resize the line number gutter when necessary (when + // the amount of lines crosses a boundary that makes its width change) + d.lineNumWidth = d.lineNumInnerWidth = d.lineNumChars = null; + // See readInput and resetInput + d.prevInput = ""; + // Set to true when a non-horizontal-scrolling line widget is + // added. As an optimization, line widget aligning is skipped when + // this is false. + d.alignWidgets = false; + // Flag that indicates whether we expect input to appear real soon + // now (after some event like 'keypress' or 'input') and are + // polling intensively. + d.pollingFast = false; + // Self-resetting timeout for the poller + d.poll = new Delayed(); + + d.cachedCharWidth = d.cachedTextHeight = d.cachedPaddingH = null; + + // Tracks when resetInput has punted to just putting a short + // string into the textarea instead of the full selection. + d.inaccurateSelection = false; + + // Tracks the maximum line length so that the horizontal scrollbar + // can be kept static when scrolling. + d.maxLine = null; + d.maxLineLength = 0; + d.maxLineChanged = false; + + // Used for measuring wheel scrolling granularity + d.wheelDX = d.wheelDY = d.wheelStartX = d.wheelStartY = null; + + // True when shift is held down. + d.shift = false; + + // Used to track whether anything happened since the context menu + // was opened. + d.selForContextMenu = null; + } + + // STATE UPDATES + + // Used to get the editor into a consistent state again when options change. + + function loadMode(cm) { + cm.doc.mode = CodeMirror.getMode(cm.options, cm.doc.modeOption); + resetModeState(cm); + } + + function resetModeState(cm) { + cm.doc.iter(function(line) { + if (line.stateAfter) line.stateAfter = null; + if (line.styles) line.styles = null; + }); + cm.doc.frontier = cm.doc.first; + startWorker(cm, 100); + cm.state.modeGen++; + if (cm.curOp) regChange(cm); + } + + function wrappingChanged(cm) { + if (cm.options.lineWrapping) { + addClass(cm.display.wrapper, "CodeMirror-wrap"); + cm.display.sizer.style.minWidth = ""; + } else { + rmClass(cm.display.wrapper, "CodeMirror-wrap"); + findMaxLine(cm); + } + estimateLineHeights(cm); + regChange(cm); + clearCaches(cm); + setTimeout(function(){updateScrollbars(cm);}, 100); + } + + // Returns a function that estimates the height of a line, to use as + // first approximation until the line becomes visible (and is thus + // properly measurable). + function estimateHeight(cm) { + var th = textHeight(cm.display), wrapping = cm.options.lineWrapping; + var perLine = wrapping && Math.max(5, cm.display.scroller.clientWidth / charWidth(cm.display) - 3); + return function(line) { + if (lineIsHidden(cm.doc, line)) return 0; + + var widgetsHeight = 0; + if (line.widgets) for (var i = 0; i < line.widgets.length; i++) { + if (line.widgets[i].height) widgetsHeight += line.widgets[i].height; + } + + if (wrapping) + return widgetsHeight + (Math.ceil(line.text.length / perLine) || 1) * th; + else + return widgetsHeight + th; + }; + } + + function estimateLineHeights(cm) { + var doc = cm.doc, est = estimateHeight(cm); + doc.iter(function(line) { + var estHeight = est(line); + if (estHeight != line.height) updateLineHeight(line, estHeight); + }); + } + + function keyMapChanged(cm) { + var map = keyMap[cm.options.keyMap], style = map.style; + cm.display.wrapper.className = cm.display.wrapper.className.replace(/\s*cm-keymap-\S+/g, "") + + (style ? " cm-keymap-" + style : ""); + } + + function themeChanged(cm) { + cm.display.wrapper.className = cm.display.wrapper.className.replace(/\s*cm-s-\S+/g, "") + + cm.options.theme.replace(/(^|\s)\s*/g, " cm-s-"); + clearCaches(cm); + } + + function guttersChanged(cm) { + updateGutters(cm); + regChange(cm); + setTimeout(function(){alignHorizontally(cm);}, 20); + } + + // Rebuild the gutter elements, ensure the margin to the left of the + // code matches their width. + function updateGutters(cm) { + var gutters = cm.display.gutters, specs = cm.options.gutters; + removeChildren(gutters); + for (var i = 0; i < specs.length; ++i) { + var gutterClass = specs[i]; + var gElt = gutters.appendChild(elt("div", null, "CodeMirror-gutter " + gutterClass)); + if (gutterClass == "CodeMirror-linenumbers") { + cm.display.lineGutter = gElt; + gElt.style.width = (cm.display.lineNumWidth || 1) + "px"; + } + } + gutters.style.display = i ? "" : "none"; + updateGutterSpace(cm); + } + + function updateGutterSpace(cm) { + var width = cm.display.gutters.offsetWidth; + cm.display.sizer.style.marginLeft = width + "px"; + cm.display.scrollbarH.style.left = cm.options.fixedGutter ? width + "px" : 0; + } + + // Compute the character length of a line, taking into account + // collapsed ranges (see markText) that might hide parts, and join + // other lines onto it. + function lineLength(line) { + if (line.height == 0) return 0; + var len = line.text.length, merged, cur = line; + while (merged = collapsedSpanAtStart(cur)) { + var found = merged.find(0, true); + cur = found.from.line; + len += found.from.ch - found.to.ch; + } + cur = line; + while (merged = collapsedSpanAtEnd(cur)) { + var found = merged.find(0, true); + len -= cur.text.length - found.from.ch; + cur = found.to.line; + len += cur.text.length - found.to.ch; + } + return len; + } + + // Find the longest line in the document. + function findMaxLine(cm) { + var d = cm.display, doc = cm.doc; + d.maxLine = getLine(doc, doc.first); + d.maxLineLength = lineLength(d.maxLine); + d.maxLineChanged = true; + doc.iter(function(line) { + var len = lineLength(line); + if (len > d.maxLineLength) { + d.maxLineLength = len; + d.maxLine = line; + } + }); + } + + // Make sure the gutters options contains the element + // "CodeMirror-linenumbers" when the lineNumbers option is true. + function setGuttersForLineNumbers(options) { + var found = indexOf(options.gutters, "CodeMirror-linenumbers"); + if (found == -1 && options.lineNumbers) { + options.gutters = options.gutters.concat(["CodeMirror-linenumbers"]); + } else if (found > -1 && !options.lineNumbers) { + options.gutters = options.gutters.slice(0); + options.gutters.splice(found, 1); + } + } + + // SCROLLBARS + + // Prepare DOM reads needed to update the scrollbars. Done in one + // shot to minimize update/measure roundtrips. + function measureForScrollbars(cm) { + var scroll = cm.display.scroller; + return { + clientHeight: scroll.clientHeight, + barHeight: cm.display.scrollbarV.clientHeight, + scrollWidth: scroll.scrollWidth, clientWidth: scroll.clientWidth, + barWidth: cm.display.scrollbarH.clientWidth, + docHeight: Math.round(cm.doc.height + paddingVert(cm.display)) + }; + } + + // Re-synchronize the fake scrollbars with the actual size of the + // content. + function updateScrollbars(cm, measure) { + if (!measure) measure = measureForScrollbars(cm); + var d = cm.display; + var scrollHeight = measure.docHeight + scrollerCutOff; + var needsH = measure.scrollWidth > measure.clientWidth; + var needsV = scrollHeight > measure.clientHeight; + if (needsV) { + d.scrollbarV.style.display = "block"; + d.scrollbarV.style.bottom = needsH ? scrollbarWidth(d.measure) + "px" : "0"; + // A bug in IE8 can cause this value to be negative, so guard it. + d.scrollbarV.firstChild.style.height = + Math.max(0, scrollHeight - measure.clientHeight + (measure.barHeight || d.scrollbarV.clientHeight)) + "px"; + } else { + d.scrollbarV.style.display = ""; + d.scrollbarV.firstChild.style.height = "0"; + } + if (needsH) { + d.scrollbarH.style.display = "block"; + d.scrollbarH.style.right = needsV ? scrollbarWidth(d.measure) + "px" : "0"; + d.scrollbarH.firstChild.style.width = + (measure.scrollWidth - measure.clientWidth + (measure.barWidth || d.scrollbarH.clientWidth)) + "px"; + } else { + d.scrollbarH.style.display = ""; + d.scrollbarH.firstChild.style.width = "0"; + } + if (needsH && needsV) { + d.scrollbarFiller.style.display = "block"; + d.scrollbarFiller.style.height = d.scrollbarFiller.style.width = scrollbarWidth(d.measure) + "px"; + } else d.scrollbarFiller.style.display = ""; + if (needsH && cm.options.coverGutterNextToScrollbar && cm.options.fixedGutter) { + d.gutterFiller.style.display = "block"; + d.gutterFiller.style.height = scrollbarWidth(d.measure) + "px"; + d.gutterFiller.style.width = d.gutters.offsetWidth + "px"; + } else d.gutterFiller.style.display = ""; + + if (!cm.state.checkedOverlayScrollbar && measure.clientHeight > 0) { + if (scrollbarWidth(d.measure) === 0) { + var w = mac && !mac_geMountainLion ? "12px" : "18px"; + d.scrollbarV.style.minWidth = d.scrollbarH.style.minHeight = w; + var barMouseDown = function(e) { + if (e_target(e) != d.scrollbarV && e_target(e) != d.scrollbarH) + operation(cm, onMouseDown)(e); + }; + on(d.scrollbarV, "mousedown", barMouseDown); + on(d.scrollbarH, "mousedown", barMouseDown); + } + cm.state.checkedOverlayScrollbar = true; + } + } + + // Compute the lines that are visible in a given viewport (defaults + // the the current scroll position). viewPort may contain top, + // height, and ensure (see op.scrollToPos) properties. + function visibleLines(display, doc, viewPort) { + var top = viewPort && viewPort.top != null ? viewPort.top : display.scroller.scrollTop; + top = Math.floor(top - paddingTop(display)); + var bottom = viewPort && viewPort.bottom != null ? viewPort.bottom : top + display.wrapper.clientHeight; + + var from = lineAtHeight(doc, top), to = lineAtHeight(doc, bottom); + // Ensure is a {from: {line, ch}, to: {line, ch}} object, and + // forces those lines into the viewport (if possible). + if (viewPort && viewPort.ensure) { + var ensureFrom = viewPort.ensure.from.line, ensureTo = viewPort.ensure.to.line; + if (ensureFrom < from) + return {from: ensureFrom, + to: lineAtHeight(doc, heightAtLine(getLine(doc, ensureFrom)) + display.wrapper.clientHeight)}; + if (Math.min(ensureTo, doc.lastLine()) >= to) + return {from: lineAtHeight(doc, heightAtLine(getLine(doc, ensureTo)) - display.wrapper.clientHeight), + to: ensureTo}; + } + return {from: from, to: to}; + } + + // LINE NUMBERS + + // Re-align line numbers and gutter marks to compensate for + // horizontal scrolling. + function alignHorizontally(cm) { + var display = cm.display, view = display.view; + if (!display.alignWidgets && (!display.gutters.firstChild || !cm.options.fixedGutter)) return; + var comp = compensateForHScroll(display) - display.scroller.scrollLeft + cm.doc.scrollLeft; + var gutterW = display.gutters.offsetWidth, left = comp + "px"; + for (var i = 0; i < view.length; i++) if (!view[i].hidden) { + if (cm.options.fixedGutter && view[i].gutter) + view[i].gutter.style.left = left; + var align = view[i].alignable; + if (align) for (var j = 0; j < align.length; j++) + align[j].style.left = left; + } + if (cm.options.fixedGutter) + display.gutters.style.left = (comp + gutterW) + "px"; + } + + // Used to ensure that the line number gutter is still the right + // size for the current document size. Returns true when an update + // is needed. + function maybeUpdateLineNumberWidth(cm) { + if (!cm.options.lineNumbers) return false; + var doc = cm.doc, last = lineNumberFor(cm.options, doc.first + doc.size - 1), display = cm.display; + if (last.length != display.lineNumChars) { + var test = display.measure.appendChild(elt("div", [elt("div", last)], + "CodeMirror-linenumber CodeMirror-gutter-elt")); + var innerW = test.firstChild.offsetWidth, padding = test.offsetWidth - innerW; + display.lineGutter.style.width = ""; + display.lineNumInnerWidth = Math.max(innerW, display.lineGutter.offsetWidth - padding); + display.lineNumWidth = display.lineNumInnerWidth + padding; + display.lineNumChars = display.lineNumInnerWidth ? last.length : -1; + display.lineGutter.style.width = display.lineNumWidth + "px"; + updateGutterSpace(cm); + return true; + } + return false; + } + + function lineNumberFor(options, i) { + return String(options.lineNumberFormatter(i + options.firstLineNumber)); + } + + // Computes display.scroller.scrollLeft + display.gutters.offsetWidth, + // but using getBoundingClientRect to get a sub-pixel-accurate + // result. + function compensateForHScroll(display) { + return display.scroller.getBoundingClientRect().left - display.sizer.getBoundingClientRect().left; + } + + // DISPLAY DRAWING + + // Updates the display, selection, and scrollbars, using the + // information in display.view to find out which nodes are no longer + // up-to-date. Tries to bail out early when no changes are needed, + // unless forced is true. + // Returns true if an actual update happened, false otherwise. + function updateDisplay(cm, viewPort, forced) { + var oldFrom = cm.display.viewFrom, oldTo = cm.display.viewTo, updated; + var visible = visibleLines(cm.display, cm.doc, viewPort); + for (var first = true;; first = false) { + var oldWidth = cm.display.scroller.clientWidth; + if (!updateDisplayInner(cm, visible, forced)) break; + updated = true; + + // If the max line changed since it was last measured, measure it, + // and ensure the document's width matches it. + if (cm.display.maxLineChanged && !cm.options.lineWrapping) + adjustContentWidth(cm); + + var barMeasure = measureForScrollbars(cm); + updateSelection(cm); + setDocumentHeight(cm, barMeasure); + updateScrollbars(cm, barMeasure); + if (webkit && cm.options.lineWrapping) + checkForWebkitWidthBug(cm, barMeasure); // (Issue #2420) + if (first && cm.options.lineWrapping && oldWidth != cm.display.scroller.clientWidth) { + forced = true; + continue; + } + forced = false; + + // Clip forced viewport to actual scrollable area. + if (viewPort && viewPort.top != null) + viewPort = {top: Math.min(barMeasure.docHeight - scrollerCutOff - barMeasure.clientHeight, viewPort.top)}; + // Updated line heights might result in the drawn area not + // actually covering the viewport. Keep looping until it does. + visible = visibleLines(cm.display, cm.doc, viewPort); + if (visible.from >= cm.display.viewFrom && visible.to <= cm.display.viewTo) + break; + } + + cm.display.updateLineNumbers = null; + if (updated) { + signalLater(cm, "update", cm); + if (cm.display.viewFrom != oldFrom || cm.display.viewTo != oldTo) + signalLater(cm, "viewportChange", cm, cm.display.viewFrom, cm.display.viewTo); + } + return updated; + } + + // Does the actual updating of the line display. Bails out + // (returning false) when there is nothing to be done and forced is + // false. + function updateDisplayInner(cm, visible, forced) { + var display = cm.display, doc = cm.doc; + if (!display.wrapper.offsetWidth) { + resetView(cm); + return; + } + + // Bail out if the visible area is already rendered and nothing changed. + if (!forced && visible.from >= display.viewFrom && visible.to <= display.viewTo && + countDirtyView(cm) == 0) + return; + + if (maybeUpdateLineNumberWidth(cm)) + resetView(cm); + var dims = getDimensions(cm); + + // Compute a suitable new viewport (from & to) + var end = doc.first + doc.size; + var from = Math.max(visible.from - cm.options.viewportMargin, doc.first); + var to = Math.min(end, visible.to + cm.options.viewportMargin); + if (display.viewFrom < from && from - display.viewFrom < 20) from = Math.max(doc.first, display.viewFrom); + if (display.viewTo > to && display.viewTo - to < 20) to = Math.min(end, display.viewTo); + if (sawCollapsedSpans) { + from = visualLineNo(cm.doc, from); + to = visualLineEndNo(cm.doc, to); + } + + var different = from != display.viewFrom || to != display.viewTo || + display.lastSizeC != display.wrapper.clientHeight; + adjustView(cm, from, to); + + display.viewOffset = heightAtLine(getLine(cm.doc, display.viewFrom)); + // Position the mover div to align with the current scroll position + cm.display.mover.style.top = display.viewOffset + "px"; + + var toUpdate = countDirtyView(cm); + if (!different && toUpdate == 0 && !forced) return; + + // For big changes, we hide the enclosing element during the + // update, since that speeds up the operations on most browsers. + var focused = activeElt(); + if (toUpdate > 4) display.lineDiv.style.display = "none"; + patchDisplay(cm, display.updateLineNumbers, dims); + if (toUpdate > 4) display.lineDiv.style.display = ""; + // There might have been a widget with a focused element that got + // hidden or updated, if so re-focus it. + if (focused && activeElt() != focused && focused.offsetHeight) focused.focus(); + + // Prevent selection and cursors from interfering with the scroll + // width. + removeChildren(display.cursorDiv); + removeChildren(display.selectionDiv); + + if (different) { + display.lastSizeC = display.wrapper.clientHeight; + startWorker(cm, 400); + } + + updateHeightsInViewport(cm); + + return true; + } + + function adjustContentWidth(cm) { + var display = cm.display; + var width = measureChar(cm, display.maxLine, display.maxLine.text.length).left; + display.maxLineChanged = false; + var minWidth = Math.max(0, width + 3); + var maxScrollLeft = Math.max(0, display.sizer.offsetLeft + minWidth + scrollerCutOff - display.scroller.clientWidth); + display.sizer.style.minWidth = minWidth + "px"; + if (maxScrollLeft < cm.doc.scrollLeft) + setScrollLeft(cm, Math.min(display.scroller.scrollLeft, maxScrollLeft), true); + } + + function setDocumentHeight(cm, measure) { + cm.display.sizer.style.minHeight = cm.display.heightForcer.style.top = measure.docHeight + "px"; + cm.display.gutters.style.height = Math.max(measure.docHeight, measure.clientHeight - scrollerCutOff) + "px"; + } + + + function checkForWebkitWidthBug(cm, measure) { + // Work around Webkit bug where it sometimes reserves space for a + // non-existing phantom scrollbar in the scroller (Issue #2420) + if (cm.display.sizer.offsetWidth + cm.display.gutters.offsetWidth < cm.display.scroller.clientWidth - 1) { + cm.display.sizer.style.minHeight = cm.display.heightForcer.style.top = "0px"; + cm.display.gutters.style.height = measure.docHeight + "px"; + } + } + + // Read the actual heights of the rendered lines, and update their + // stored heights to match. + function updateHeightsInViewport(cm) { + var display = cm.display; + var prevBottom = display.lineDiv.offsetTop; + for (var i = 0; i < display.view.length; i++) { + var cur = display.view[i], height; + if (cur.hidden) continue; + if (ie_upto7) { + var bot = cur.node.offsetTop + cur.node.offsetHeight; + height = bot - prevBottom; + prevBottom = bot; + } else { + var box = cur.node.getBoundingClientRect(); + height = box.bottom - box.top; + } + var diff = cur.line.height - height; + if (height < 2) height = textHeight(display); + if (diff > .001 || diff < -.001) { + updateLineHeight(cur.line, height); + updateWidgetHeight(cur.line); + if (cur.rest) for (var j = 0; j < cur.rest.length; j++) + updateWidgetHeight(cur.rest[j]); + } + } + } + + // Read and store the height of line widgets associated with the + // given line. + function updateWidgetHeight(line) { + if (line.widgets) for (var i = 0; i < line.widgets.length; ++i) + line.widgets[i].height = line.widgets[i].node.offsetHeight; + } + + // Do a bulk-read of the DOM positions and sizes needed to draw the + // view, so that we don't interleave reading and writing to the DOM. + function getDimensions(cm) { + var d = cm.display, left = {}, width = {}; + for (var n = d.gutters.firstChild, i = 0; n; n = n.nextSibling, ++i) { + left[cm.options.gutters[i]] = n.offsetLeft; + width[cm.options.gutters[i]] = n.offsetWidth; + } + return {fixedPos: compensateForHScroll(d), + gutterTotalWidth: d.gutters.offsetWidth, + gutterLeft: left, + gutterWidth: width, + wrapperWidth: d.wrapper.clientWidth}; + } + + // Sync the actual display DOM structure with display.view, removing + // nodes for lines that are no longer in view, and creating the ones + // that are not there yet, and updating the ones that are out of + // date. + function patchDisplay(cm, updateNumbersFrom, dims) { + var display = cm.display, lineNumbers = cm.options.lineNumbers; + var container = display.lineDiv, cur = container.firstChild; + + function rm(node) { + var next = node.nextSibling; + // Works around a throw-scroll bug in OS X Webkit + if (webkit && mac && cm.display.currentWheelTarget == node) + node.style.display = "none"; + else + node.parentNode.removeChild(node); + return next; + } + + var view = display.view, lineN = display.viewFrom; + // Loop over the elements in the view, syncing cur (the DOM nodes + // in display.lineDiv) with the view as we go. + for (var i = 0; i < view.length; i++) { + var lineView = view[i]; + if (lineView.hidden) { + } else if (!lineView.node) { // Not drawn yet + var node = buildLineElement(cm, lineView, lineN, dims); + container.insertBefore(node, cur); + } else { // Already drawn + while (cur != lineView.node) cur = rm(cur); + var updateNumber = lineNumbers && updateNumbersFrom != null && + updateNumbersFrom <= lineN && lineView.lineNumber; + if (lineView.changes) { + if (indexOf(lineView.changes, "gutter") > -1) updateNumber = false; + updateLineForChanges(cm, lineView, lineN, dims); + } + if (updateNumber) { + removeChildren(lineView.lineNumber); + lineView.lineNumber.appendChild(document.createTextNode(lineNumberFor(cm.options, lineN))); + } + cur = lineView.node.nextSibling; + } + lineN += lineView.size; + } + while (cur) cur = rm(cur); + } + + // When an aspect of a line changes, a string is added to + // lineView.changes. This updates the relevant part of the line's + // DOM structure. + function updateLineForChanges(cm, lineView, lineN, dims) { + for (var j = 0; j < lineView.changes.length; j++) { + var type = lineView.changes[j]; + if (type == "text") updateLineText(cm, lineView); + else if (type == "gutter") updateLineGutter(cm, lineView, lineN, dims); + else if (type == "class") updateLineClasses(lineView); + else if (type == "widget") updateLineWidgets(lineView, dims); + } + lineView.changes = null; + } + + // Lines with gutter elements, widgets or a background class need to + // be wrapped, and have the extra elements added to the wrapper div + function ensureLineWrapped(lineView) { + if (lineView.node == lineView.text) { + lineView.node = elt("div", null, null, "position: relative"); + if (lineView.text.parentNode) + lineView.text.parentNode.replaceChild(lineView.node, lineView.text); + lineView.node.appendChild(lineView.text); + if (ie_upto7) lineView.node.style.zIndex = 2; + } + return lineView.node; + } + + function updateLineBackground(lineView) { + var cls = lineView.bgClass ? lineView.bgClass + " " + (lineView.line.bgClass || "") : lineView.line.bgClass; + if (cls) cls += " CodeMirror-linebackground"; + if (lineView.background) { + if (cls) lineView.background.className = cls; + else { lineView.background.parentNode.removeChild(lineView.background); lineView.background = null; } + } else if (cls) { + var wrap = ensureLineWrapped(lineView); + lineView.background = wrap.insertBefore(elt("div", null, cls), wrap.firstChild); + } + } + + // Wrapper around buildLineContent which will reuse the structure + // in display.externalMeasured when possible. + function getLineContent(cm, lineView) { + var ext = cm.display.externalMeasured; + if (ext && ext.line == lineView.line) { + cm.display.externalMeasured = null; + lineView.measure = ext.measure; + return ext.built; + } + return buildLineContent(cm, lineView); + } + + // Redraw the line's text. Interacts with the background and text + // classes because the mode may output tokens that influence these + // classes. + function updateLineText(cm, lineView) { + var cls = lineView.text.className; + var built = getLineContent(cm, lineView); + if (lineView.text == lineView.node) lineView.node = built.pre; + lineView.text.parentNode.replaceChild(built.pre, lineView.text); + lineView.text = built.pre; + if (built.bgClass != lineView.bgClass || built.textClass != lineView.textClass) { + lineView.bgClass = built.bgClass; + lineView.textClass = built.textClass; + updateLineClasses(lineView); + } else if (cls) { + lineView.text.className = cls; + } + } + + function updateLineClasses(lineView) { + updateLineBackground(lineView); + if (lineView.line.wrapClass) + ensureLineWrapped(lineView).className = lineView.line.wrapClass; + else if (lineView.node != lineView.text) + lineView.node.className = ""; + var textClass = lineView.textClass ? lineView.textClass + " " + (lineView.line.textClass || "") : lineView.line.textClass; + lineView.text.className = textClass || ""; + } + + function updateLineGutter(cm, lineView, lineN, dims) { + if (lineView.gutter) { + lineView.node.removeChild(lineView.gutter); + lineView.gutter = null; + } + var markers = lineView.line.gutterMarkers; + if (cm.options.lineNumbers || markers) { + var wrap = ensureLineWrapped(lineView); + var gutterWrap = lineView.gutter = + wrap.insertBefore(elt("div", null, "CodeMirror-gutter-wrapper", "position: absolute; left: " + + (cm.options.fixedGutter ? dims.fixedPos : -dims.gutterTotalWidth) + "px"), + lineView.text); + if (cm.options.lineNumbers && (!markers || !markers["CodeMirror-linenumbers"])) + lineView.lineNumber = gutterWrap.appendChild( + elt("div", lineNumberFor(cm.options, lineN), + "CodeMirror-linenumber CodeMirror-gutter-elt", + "left: " + dims.gutterLeft["CodeMirror-linenumbers"] + "px; width: " + + cm.display.lineNumInnerWidth + "px")); + if (markers) for (var k = 0; k < cm.options.gutters.length; ++k) { + var id = cm.options.gutters[k], found = markers.hasOwnProperty(id) && markers[id]; + if (found) + gutterWrap.appendChild(elt("div", [found], "CodeMirror-gutter-elt", "left: " + + dims.gutterLeft[id] + "px; width: " + dims.gutterWidth[id] + "px")); + } + } + } + + function updateLineWidgets(lineView, dims) { + if (lineView.alignable) lineView.alignable = null; + for (var node = lineView.node.firstChild, next; node; node = next) { + var next = node.nextSibling; + if (node.className == "CodeMirror-linewidget") + lineView.node.removeChild(node); + } + insertLineWidgets(lineView, dims); + } + + // Build a line's DOM representation from scratch + function buildLineElement(cm, lineView, lineN, dims) { + var built = getLineContent(cm, lineView); + lineView.text = lineView.node = built.pre; + if (built.bgClass) lineView.bgClass = built.bgClass; + if (built.textClass) lineView.textClass = built.textClass; + + updateLineClasses(lineView); + updateLineGutter(cm, lineView, lineN, dims); + insertLineWidgets(lineView, dims); + return lineView.node; + } + + // A lineView may contain multiple logical lines (when merged by + // collapsed spans). The widgets for all of them need to be drawn. + function insertLineWidgets(lineView, dims) { + insertLineWidgetsFor(lineView.line, lineView, dims, true); + if (lineView.rest) for (var i = 0; i < lineView.rest.length; i++) + insertLineWidgetsFor(lineView.rest[i], lineView, dims, false); + } + + function insertLineWidgetsFor(line, lineView, dims, allowAbove) { + if (!line.widgets) return; + var wrap = ensureLineWrapped(lineView); + for (var i = 0, ws = line.widgets; i < ws.length; ++i) { + var widget = ws[i], node = elt("div", [widget.node], "CodeMirror-linewidget"); + if (!widget.handleMouseEvents) node.ignoreEvents = true; + positionLineWidget(widget, node, lineView, dims); + if (allowAbove && widget.above) + wrap.insertBefore(node, lineView.gutter || lineView.text); + else + wrap.appendChild(node); + signalLater(widget, "redraw"); + } + } + + function positionLineWidget(widget, node, lineView, dims) { + if (widget.noHScroll) { + (lineView.alignable || (lineView.alignable = [])).push(node); + var width = dims.wrapperWidth; + node.style.left = dims.fixedPos + "px"; + if (!widget.coverGutter) { + width -= dims.gutterTotalWidth; + node.style.paddingLeft = dims.gutterTotalWidth + "px"; + } + node.style.width = width + "px"; + } + if (widget.coverGutter) { + node.style.zIndex = 5; + node.style.position = "relative"; + if (!widget.noHScroll) node.style.marginLeft = -dims.gutterTotalWidth + "px"; + } + } + + // POSITION OBJECT + + // A Pos instance represents a position within the text. + var Pos = CodeMirror.Pos = function(line, ch) { + if (!(this instanceof Pos)) return new Pos(line, ch); + this.line = line; this.ch = ch; + }; + + // Compare two positions, return 0 if they are the same, a negative + // number when a is less, and a positive number otherwise. + var cmp = CodeMirror.cmpPos = function(a, b) { return a.line - b.line || a.ch - b.ch; }; + + function copyPos(x) {return Pos(x.line, x.ch);} + function maxPos(a, b) { return cmp(a, b) < 0 ? b : a; } + function minPos(a, b) { return cmp(a, b) < 0 ? a : b; } + + // SELECTION / CURSOR + + // Selection objects are immutable. A new one is created every time + // the selection changes. A selection is one or more non-overlapping + // (and non-touching) ranges, sorted, and an integer that indicates + // which one is the primary selection (the one that's scrolled into + // view, that getCursor returns, etc). + function Selection(ranges, primIndex) { + this.ranges = ranges; + this.primIndex = primIndex; + } + + Selection.prototype = { + primary: function() { return this.ranges[this.primIndex]; }, + equals: function(other) { + if (other == this) return true; + if (other.primIndex != this.primIndex || other.ranges.length != this.ranges.length) return false; + for (var i = 0; i < this.ranges.length; i++) { + var here = this.ranges[i], there = other.ranges[i]; + if (cmp(here.anchor, there.anchor) != 0 || cmp(here.head, there.head) != 0) return false; + } + return true; + }, + deepCopy: function() { + for (var out = [], i = 0; i < this.ranges.length; i++) + out[i] = new Range(copyPos(this.ranges[i].anchor), copyPos(this.ranges[i].head)); + return new Selection(out, this.primIndex); + }, + somethingSelected: function() { + for (var i = 0; i < this.ranges.length; i++) + if (!this.ranges[i].empty()) return true; + return false; + }, + contains: function(pos, end) { + if (!end) end = pos; + for (var i = 0; i < this.ranges.length; i++) { + var range = this.ranges[i]; + if (cmp(end, range.from()) >= 0 && cmp(pos, range.to()) <= 0) + return i; + } + return -1; + } + }; + + function Range(anchor, head) { + this.anchor = anchor; this.head = head; + } + + Range.prototype = { + from: function() { return minPos(this.anchor, this.head); }, + to: function() { return maxPos(this.anchor, this.head); }, + empty: function() { + return this.head.line == this.anchor.line && this.head.ch == this.anchor.ch; + } + }; + + // Take an unsorted, potentially overlapping set of ranges, and + // build a selection out of it. 'Consumes' ranges array (modifying + // it). + function normalizeSelection(ranges, primIndex) { + var prim = ranges[primIndex]; + ranges.sort(function(a, b) { return cmp(a.from(), b.from()); }); + primIndex = indexOf(ranges, prim); + for (var i = 1; i < ranges.length; i++) { + var cur = ranges[i], prev = ranges[i - 1]; + if (cmp(prev.to(), cur.from()) >= 0) { + var from = minPos(prev.from(), cur.from()), to = maxPos(prev.to(), cur.to()); + var inv = prev.empty() ? cur.from() == cur.head : prev.from() == prev.head; + if (i <= primIndex) --primIndex; + ranges.splice(--i, 2, new Range(inv ? to : from, inv ? from : to)); + } + } + return new Selection(ranges, primIndex); + } + + function simpleSelection(anchor, head) { + return new Selection([new Range(anchor, head || anchor)], 0); + } + + // Most of the external API clips given positions to make sure they + // actually exist within the document. + function clipLine(doc, n) {return Math.max(doc.first, Math.min(n, doc.first + doc.size - 1));} + function clipPos(doc, pos) { + if (pos.line < doc.first) return Pos(doc.first, 0); + var last = doc.first + doc.size - 1; + if (pos.line > last) return Pos(last, getLine(doc, last).text.length); + return clipToLen(pos, getLine(doc, pos.line).text.length); + } + function clipToLen(pos, linelen) { + var ch = pos.ch; + if (ch == null || ch > linelen) return Pos(pos.line, linelen); + else if (ch < 0) return Pos(pos.line, 0); + else return pos; + } + function isLine(doc, l) {return l >= doc.first && l < doc.first + doc.size;} + function clipPosArray(doc, array) { + for (var out = [], i = 0; i < array.length; i++) out[i] = clipPos(doc, array[i]); + return out; + } + + // SELECTION UPDATES + + // The 'scroll' parameter given to many of these indicated whether + // the new cursor position should be scrolled into view after + // modifying the selection. + + // If shift is held or the extend flag is set, extends a range to + // include a given position (and optionally a second position). + // Otherwise, simply returns the range between the given positions. + // Used for cursor motion and such. + function extendRange(doc, range, head, other) { + if (doc.cm && doc.cm.display.shift || doc.extend) { + var anchor = range.anchor; + if (other) { + var posBefore = cmp(head, anchor) < 0; + if (posBefore != (cmp(other, anchor) < 0)) { + anchor = head; + head = other; + } else if (posBefore != (cmp(head, other) < 0)) { + head = other; + } + } + return new Range(anchor, head); + } else { + return new Range(other || head, head); + } + } + + // Extend the primary selection range, discard the rest. + function extendSelection(doc, head, other, options) { + setSelection(doc, new Selection([extendRange(doc, doc.sel.primary(), head, other)], 0), options); + } + + // Extend all selections (pos is an array of selections with length + // equal the number of selections) + function extendSelections(doc, heads, options) { + for (var out = [], i = 0; i < doc.sel.ranges.length; i++) + out[i] = extendRange(doc, doc.sel.ranges[i], heads[i], null); + var newSel = normalizeSelection(out, doc.sel.primIndex); + setSelection(doc, newSel, options); + } + + // Updates a single range in the selection. + function replaceOneSelection(doc, i, range, options) { + var ranges = doc.sel.ranges.slice(0); + ranges[i] = range; + setSelection(doc, normalizeSelection(ranges, doc.sel.primIndex), options); + } + + // Reset the selection to a single range. + function setSimpleSelection(doc, anchor, head, options) { + setSelection(doc, simpleSelection(anchor, head), options); + } + + // Give beforeSelectionChange handlers a change to influence a + // selection update. + function filterSelectionChange(doc, sel) { + var obj = { + ranges: sel.ranges, + update: function(ranges) { + this.ranges = []; + for (var i = 0; i < ranges.length; i++) + this.ranges[i] = new Range(clipPos(doc, ranges[i].anchor), + clipPos(doc, ranges[i].head)); + } + }; + signal(doc, "beforeSelectionChange", doc, obj); + if (doc.cm) signal(doc.cm, "beforeSelectionChange", doc.cm, obj); + if (obj.ranges != sel.ranges) return normalizeSelection(obj.ranges, obj.ranges.length - 1); + else return sel; + } + + function setSelectionReplaceHistory(doc, sel, options) { + var done = doc.history.done, last = lst(done); + if (last && last.ranges) { + done[done.length - 1] = sel; + setSelectionNoUndo(doc, sel, options); + } else { + setSelection(doc, sel, options); + } + } + + // Set a new selection. + function setSelection(doc, sel, options) { + setSelectionNoUndo(doc, sel, options); + addSelectionToHistory(doc, doc.sel, doc.cm ? doc.cm.curOp.id : NaN, options); + } + + function setSelectionNoUndo(doc, sel, options) { + if (hasHandler(doc, "beforeSelectionChange") || doc.cm && hasHandler(doc.cm, "beforeSelectionChange")) + sel = filterSelectionChange(doc, sel); + + var bias = cmp(sel.primary().head, doc.sel.primary().head) < 0 ? -1 : 1; + setSelectionInner(doc, skipAtomicInSelection(doc, sel, bias, true)); + + if (!(options && options.scroll === false) && doc.cm) + ensureCursorVisible(doc.cm); + } + + function setSelectionInner(doc, sel) { + if (sel.equals(doc.sel)) return; + + doc.sel = sel; + + if (doc.cm) { + doc.cm.curOp.updateInput = doc.cm.curOp.selectionChanged = true; + signalCursorActivity(doc.cm); + } + signalLater(doc, "cursorActivity", doc); + } + + // Verify that the selection does not partially select any atomic + // marked ranges. + function reCheckSelection(doc) { + setSelectionInner(doc, skipAtomicInSelection(doc, doc.sel, null, false), sel_dontScroll); + } + + // Return a selection that does not partially select any atomic + // ranges. + function skipAtomicInSelection(doc, sel, bias, mayClear) { + var out; + for (var i = 0; i < sel.ranges.length; i++) { + var range = sel.ranges[i]; + var newAnchor = skipAtomic(doc, range.anchor, bias, mayClear); + var newHead = skipAtomic(doc, range.head, bias, mayClear); + if (out || newAnchor != range.anchor || newHead != range.head) { + if (!out) out = sel.ranges.slice(0, i); + out[i] = new Range(newAnchor, newHead); + } + } + return out ? normalizeSelection(out, sel.primIndex) : sel; + } + + // Ensure a given position is not inside an atomic range. + function skipAtomic(doc, pos, bias, mayClear) { + var flipped = false, curPos = pos; + var dir = bias || 1; + doc.cantEdit = false; + search: for (;;) { + var line = getLine(doc, curPos.line); + if (line.markedSpans) { + for (var i = 0; i < line.markedSpans.length; ++i) { + var sp = line.markedSpans[i], m = sp.marker; + if ((sp.from == null || (m.inclusiveLeft ? sp.from <= curPos.ch : sp.from < curPos.ch)) && + (sp.to == null || (m.inclusiveRight ? sp.to >= curPos.ch : sp.to > curPos.ch))) { + if (mayClear) { + signal(m, "beforeCursorEnter"); + if (m.explicitlyCleared) { + if (!line.markedSpans) break; + else {--i; continue;} + } + } + if (!m.atomic) continue; + var newPos = m.find(dir < 0 ? -1 : 1); + if (cmp(newPos, curPos) == 0) { + newPos.ch += dir; + if (newPos.ch < 0) { + if (newPos.line > doc.first) newPos = clipPos(doc, Pos(newPos.line - 1)); + else newPos = null; + } else if (newPos.ch > line.text.length) { + if (newPos.line < doc.first + doc.size - 1) newPos = Pos(newPos.line + 1, 0); + else newPos = null; + } + if (!newPos) { + if (flipped) { + // Driven in a corner -- no valid cursor position found at all + // -- try again *with* clearing, if we didn't already + if (!mayClear) return skipAtomic(doc, pos, bias, true); + // Otherwise, turn off editing until further notice, and return the start of the doc + doc.cantEdit = true; + return Pos(doc.first, 0); + } + flipped = true; newPos = pos; dir = -dir; + } + } + curPos = newPos; + continue search; + } + } + } + return curPos; + } + } + + // SELECTION DRAWING + + // Redraw the selection and/or cursor + function updateSelection(cm) { + var display = cm.display, doc = cm.doc; + var curFragment = document.createDocumentFragment(); + var selFragment = document.createDocumentFragment(); + + for (var i = 0; i < doc.sel.ranges.length; i++) { + var range = doc.sel.ranges[i]; + var collapsed = range.empty(); + if (collapsed || cm.options.showCursorWhenSelecting) + drawSelectionCursor(cm, range, curFragment); + if (!collapsed) + drawSelectionRange(cm, range, selFragment); + } + + // Move the hidden textarea near the cursor to prevent scrolling artifacts + if (cm.options.moveInputWithCursor) { + var headPos = cursorCoords(cm, doc.sel.primary().head, "div"); + var wrapOff = display.wrapper.getBoundingClientRect(), lineOff = display.lineDiv.getBoundingClientRect(); + var top = Math.max(0, Math.min(display.wrapper.clientHeight - 10, + headPos.top + lineOff.top - wrapOff.top)); + var left = Math.max(0, Math.min(display.wrapper.clientWidth - 10, + headPos.left + lineOff.left - wrapOff.left)); + display.inputDiv.style.top = top + "px"; + display.inputDiv.style.left = left + "px"; + } + + removeChildrenAndAdd(display.cursorDiv, curFragment); + removeChildrenAndAdd(display.selectionDiv, selFragment); + } + + // Draws a cursor for the given range + function drawSelectionCursor(cm, range, output) { + var pos = cursorCoords(cm, range.head, "div"); + + var cursor = output.appendChild(elt("div", "\u00a0", "CodeMirror-cursor")); + cursor.style.left = pos.left + "px"; + cursor.style.top = pos.top + "px"; + cursor.style.height = Math.max(0, pos.bottom - pos.top) * cm.options.cursorHeight + "px"; + + if (pos.other) { + // Secondary cursor, shown when on a 'jump' in bi-directional text + var otherCursor = output.appendChild(elt("div", "\u00a0", "CodeMirror-cursor CodeMirror-secondarycursor")); + otherCursor.style.display = ""; + otherCursor.style.left = pos.other.left + "px"; + otherCursor.style.top = pos.other.top + "px"; + otherCursor.style.height = (pos.other.bottom - pos.other.top) * .85 + "px"; + } + } + + // Draws the given range as a highlighted selection + function drawSelectionRange(cm, range, output) { + var display = cm.display, doc = cm.doc; + var fragment = document.createDocumentFragment(); + var padding = paddingH(cm.display), leftSide = padding.left, rightSide = display.lineSpace.offsetWidth - padding.right; + + function add(left, top, width, bottom) { + if (top < 0) top = 0; + top = Math.round(top); + bottom = Math.round(bottom); + fragment.appendChild(elt("div", null, "CodeMirror-selected", "position: absolute; left: " + left + + "px; top: " + top + "px; width: " + (width == null ? rightSide - left : width) + + "px; height: " + (bottom - top) + "px")); + } + + function drawForLine(line, fromArg, toArg) { + var lineObj = getLine(doc, line); + var lineLen = lineObj.text.length; + var start, end; + function coords(ch, bias) { + return charCoords(cm, Pos(line, ch), "div", lineObj, bias); + } + + iterateBidiSections(getOrder(lineObj), fromArg || 0, toArg == null ? lineLen : toArg, function(from, to, dir) { + var leftPos = coords(from, "left"), rightPos, left, right; + if (from == to) { + rightPos = leftPos; + left = right = leftPos.left; + } else { + rightPos = coords(to - 1, "right"); + if (dir == "rtl") { var tmp = leftPos; leftPos = rightPos; rightPos = tmp; } + left = leftPos.left; + right = rightPos.right; + } + if (fromArg == null && from == 0) left = leftSide; + if (rightPos.top - leftPos.top > 3) { // Different lines, draw top part + add(left, leftPos.top, null, leftPos.bottom); + left = leftSide; + if (leftPos.bottom < rightPos.top) add(left, leftPos.bottom, null, rightPos.top); + } + if (toArg == null && to == lineLen) right = rightSide; + if (!start || leftPos.top < start.top || leftPos.top == start.top && leftPos.left < start.left) + start = leftPos; + if (!end || rightPos.bottom > end.bottom || rightPos.bottom == end.bottom && rightPos.right > end.right) + end = rightPos; + if (left < leftSide + 1) left = leftSide; + add(left, rightPos.top, right - left, rightPos.bottom); + }); + return {start: start, end: end}; + } + + var sFrom = range.from(), sTo = range.to(); + if (sFrom.line == sTo.line) { + drawForLine(sFrom.line, sFrom.ch, sTo.ch); + } else { + var fromLine = getLine(doc, sFrom.line), toLine = getLine(doc, sTo.line); + var singleVLine = visualLine(fromLine) == visualLine(toLine); + var leftEnd = drawForLine(sFrom.line, sFrom.ch, singleVLine ? fromLine.text.length + 1 : null).end; + var rightStart = drawForLine(sTo.line, singleVLine ? 0 : null, sTo.ch).start; + if (singleVLine) { + if (leftEnd.top < rightStart.top - 2) { + add(leftEnd.right, leftEnd.top, null, leftEnd.bottom); + add(leftSide, rightStart.top, rightStart.left, rightStart.bottom); + } else { + add(leftEnd.right, leftEnd.top, rightStart.left - leftEnd.right, leftEnd.bottom); + } + } + if (leftEnd.bottom < rightStart.top) + add(leftSide, leftEnd.bottom, null, rightStart.top); + } + + output.appendChild(fragment); + } + + // Cursor-blinking + function restartBlink(cm) { + if (!cm.state.focused) return; + var display = cm.display; + clearInterval(display.blinker); + var on = true; + display.cursorDiv.style.visibility = ""; + if (cm.options.cursorBlinkRate > 0) + display.blinker = setInterval(function() { + display.cursorDiv.style.visibility = (on = !on) ? "" : "hidden"; + }, cm.options.cursorBlinkRate); + } + + // HIGHLIGHT WORKER + + function startWorker(cm, time) { + if (cm.doc.mode.startState && cm.doc.frontier < cm.display.viewTo) + cm.state.highlight.set(time, bind(highlightWorker, cm)); + } + + function highlightWorker(cm) { + var doc = cm.doc; + if (doc.frontier < doc.first) doc.frontier = doc.first; + if (doc.frontier >= cm.display.viewTo) return; + var end = +new Date + cm.options.workTime; + var state = copyState(doc.mode, getStateBefore(cm, doc.frontier)); + + runInOp(cm, function() { + doc.iter(doc.frontier, Math.min(doc.first + doc.size, cm.display.viewTo + 500), function(line) { + if (doc.frontier >= cm.display.viewFrom) { // Visible + var oldStyles = line.styles; + var highlighted = highlightLine(cm, line, state, true); + line.styles = highlighted.styles; + if (highlighted.classes) line.styleClasses = highlighted.classes; + else if (line.styleClasses) line.styleClasses = null; + var ischange = !oldStyles || oldStyles.length != line.styles.length; + for (var i = 0; !ischange && i < oldStyles.length; ++i) ischange = oldStyles[i] != line.styles[i]; + if (ischange) regLineChange(cm, doc.frontier, "text"); + line.stateAfter = copyState(doc.mode, state); + } else { + processLine(cm, line.text, state); + line.stateAfter = doc.frontier % 5 == 0 ? copyState(doc.mode, state) : null; + } + ++doc.frontier; + if (+new Date > end) { + startWorker(cm, cm.options.workDelay); + return true; + } + }); + }); + } + + // Finds the line to start with when starting a parse. Tries to + // find a line with a stateAfter, so that it can start with a + // valid state. If that fails, it returns the line with the + // smallest indentation, which tends to need the least context to + // parse correctly. + function findStartLine(cm, n, precise) { + var minindent, minline, doc = cm.doc; + var lim = precise ? -1 : n - (cm.doc.mode.innerMode ? 1000 : 100); + for (var search = n; search > lim; --search) { + if (search <= doc.first) return doc.first; + var line = getLine(doc, search - 1); + if (line.stateAfter && (!precise || search <= doc.frontier)) return search; + var indented = countColumn(line.text, null, cm.options.tabSize); + if (minline == null || minindent > indented) { + minline = search - 1; + minindent = indented; + } + } + return minline; + } + + function getStateBefore(cm, n, precise) { + var doc = cm.doc, display = cm.display; + if (!doc.mode.startState) return true; + var pos = findStartLine(cm, n, precise), state = pos > doc.first && getLine(doc, pos-1).stateAfter; + if (!state) state = startState(doc.mode); + else state = copyState(doc.mode, state); + doc.iter(pos, n, function(line) { + processLine(cm, line.text, state); + var save = pos == n - 1 || pos % 5 == 0 || pos >= display.viewFrom && pos < display.viewTo; + line.stateAfter = save ? copyState(doc.mode, state) : null; + ++pos; + }); + if (precise) doc.frontier = pos; + return state; + } + + // POSITION MEASUREMENT + + function paddingTop(display) {return display.lineSpace.offsetTop;} + function paddingVert(display) {return display.mover.offsetHeight - display.lineSpace.offsetHeight;} + function paddingH(display) { + if (display.cachedPaddingH) return display.cachedPaddingH; + var e = removeChildrenAndAdd(display.measure, elt("pre", "x")); + var style = window.getComputedStyle ? window.getComputedStyle(e) : e.currentStyle; + var data = {left: parseInt(style.paddingLeft), right: parseInt(style.paddingRight)}; + if (!isNaN(data.left) && !isNaN(data.right)) display.cachedPaddingH = data; + return data; + } + + // Ensure the lineView.wrapping.heights array is populated. This is + // an array of bottom offsets for the lines that make up a drawn + // line. When lineWrapping is on, there might be more than one + // height. + function ensureLineHeights(cm, lineView, rect) { + var wrapping = cm.options.lineWrapping; + var curWidth = wrapping && cm.display.scroller.clientWidth; + if (!lineView.measure.heights || wrapping && lineView.measure.width != curWidth) { + var heights = lineView.measure.heights = []; + if (wrapping) { + lineView.measure.width = curWidth; + var rects = lineView.text.firstChild.getClientRects(); + for (var i = 0; i < rects.length - 1; i++) { + var cur = rects[i], next = rects[i + 1]; + if (Math.abs(cur.bottom - next.bottom) > 2) + heights.push((cur.bottom + next.top) / 2 - rect.top); + } + } + heights.push(rect.bottom - rect.top); + } + } + + // Find a line map (mapping character offsets to text nodes) and a + // measurement cache for the given line number. (A line view might + // contain multiple lines when collapsed ranges are present.) + function mapFromLineView(lineView, line, lineN) { + if (lineView.line == line) + return {map: lineView.measure.map, cache: lineView.measure.cache}; + for (var i = 0; i < lineView.rest.length; i++) + if (lineView.rest[i] == line) + return {map: lineView.measure.maps[i], cache: lineView.measure.caches[i]}; + for (var i = 0; i < lineView.rest.length; i++) + if (lineNo(lineView.rest[i]) > lineN) + return {map: lineView.measure.maps[i], cache: lineView.measure.caches[i], before: true}; + } + + // Render a line into the hidden node display.externalMeasured. Used + // when measurement is needed for a line that's not in the viewport. + function updateExternalMeasurement(cm, line) { + line = visualLine(line); + var lineN = lineNo(line); + var view = cm.display.externalMeasured = new LineView(cm.doc, line, lineN); + view.lineN = lineN; + var built = view.built = buildLineContent(cm, view); + view.text = built.pre; + removeChildrenAndAdd(cm.display.lineMeasure, built.pre); + return view; + } + + // Get a {top, bottom, left, right} box (in line-local coordinates) + // for a given character. + function measureChar(cm, line, ch, bias) { + return measureCharPrepared(cm, prepareMeasureForLine(cm, line), ch, bias); + } + + // Find a line view that corresponds to the given line number. + function findViewForLine(cm, lineN) { + if (lineN >= cm.display.viewFrom && lineN < cm.display.viewTo) + return cm.display.view[findViewIndex(cm, lineN)]; + var ext = cm.display.externalMeasured; + if (ext && lineN >= ext.lineN && lineN < ext.lineN + ext.size) + return ext; + } + + // Measurement can be split in two steps, the set-up work that + // applies to the whole line, and the measurement of the actual + // character. Functions like coordsChar, that need to do a lot of + // measurements in a row, can thus ensure that the set-up work is + // only done once. + function prepareMeasureForLine(cm, line) { + var lineN = lineNo(line); + var view = findViewForLine(cm, lineN); + if (view && !view.text) + view = null; + else if (view && view.changes) + updateLineForChanges(cm, view, lineN, getDimensions(cm)); + if (!view) + view = updateExternalMeasurement(cm, line); + + var info = mapFromLineView(view, line, lineN); + return { + line: line, view: view, rect: null, + map: info.map, cache: info.cache, before: info.before, + hasHeights: false + }; + } + + // Given a prepared measurement object, measures the position of an + // actual character (or fetches it from the cache). + function measureCharPrepared(cm, prepared, ch, bias) { + if (prepared.before) ch = -1; + var key = ch + (bias || ""), found; + if (prepared.cache.hasOwnProperty(key)) { + found = prepared.cache[key]; + } else { + if (!prepared.rect) + prepared.rect = prepared.view.text.getBoundingClientRect(); + if (!prepared.hasHeights) { + ensureLineHeights(cm, prepared.view, prepared.rect); + prepared.hasHeights = true; + } + found = measureCharInner(cm, prepared, ch, bias); + if (!found.bogus) prepared.cache[key] = found; + } + return {left: found.left, right: found.right, top: found.top, bottom: found.bottom}; + } + + var nullRect = {left: 0, right: 0, top: 0, bottom: 0}; + + function measureCharInner(cm, prepared, ch, bias) { + var map = prepared.map; + + var node, start, end, collapse; + // First, search the line map for the text node corresponding to, + // or closest to, the target character. + for (var i = 0; i < map.length; i += 3) { + var mStart = map[i], mEnd = map[i + 1]; + if (ch < mStart) { + start = 0; end = 1; + collapse = "left"; + } else if (ch < mEnd) { + start = ch - mStart; + end = start + 1; + } else if (i == map.length - 3 || ch == mEnd && map[i + 3] > ch) { + end = mEnd - mStart; + start = end - 1; + if (ch >= mEnd) collapse = "right"; + } + if (start != null) { + node = map[i + 2]; + if (mStart == mEnd && bias == (node.insertLeft ? "left" : "right")) + collapse = bias; + if (bias == "left" && start == 0) + while (i && map[i - 2] == map[i - 3] && map[i - 1].insertLeft) { + node = map[(i -= 3) + 2]; + collapse = "left"; + } + if (bias == "right" && start == mEnd - mStart) + while (i < map.length - 3 && map[i + 3] == map[i + 4] && !map[i + 5].insertLeft) { + node = map[(i += 3) + 2]; + collapse = "right"; + } + break; + } + } + + var rect; + if (node.nodeType == 3) { // If it is a text node, use a range to retrieve the coordinates. + while (start && isExtendingChar(prepared.line.text.charAt(mStart + start))) --start; + while (mStart + end < mEnd && isExtendingChar(prepared.line.text.charAt(mStart + end))) ++end; + if (ie_upto8 && start == 0 && end == mEnd - mStart) { + rect = node.parentNode.getBoundingClientRect(); + } else if (ie && cm.options.lineWrapping) { + var rects = range(node, start, end).getClientRects(); + if (rects.length) + rect = rects[bias == "right" ? rects.length - 1 : 0]; + else + rect = nullRect; + } else { + rect = range(node, start, end).getBoundingClientRect() || nullRect; + } + } else { // If it is a widget, simply get the box for the whole widget. + if (start > 0) collapse = bias = "right"; + var rects; + if (cm.options.lineWrapping && (rects = node.getClientRects()).length > 1) + rect = rects[bias == "right" ? rects.length - 1 : 0]; + else + rect = node.getBoundingClientRect(); + } + if (ie_upto8 && !start && (!rect || !rect.left && !rect.right)) { + var rSpan = node.parentNode.getClientRects()[0]; + if (rSpan) + rect = {left: rSpan.left, right: rSpan.left + charWidth(cm.display), top: rSpan.top, bottom: rSpan.bottom}; + else + rect = nullRect; + } + + var top, bot = (rect.bottom + rect.top) / 2 - prepared.rect.top; + var heights = prepared.view.measure.heights; + for (var i = 0; i < heights.length - 1; i++) + if (bot < heights[i]) break; + top = i ? heights[i - 1] : 0; bot = heights[i]; + var result = {left: (collapse == "right" ? rect.right : rect.left) - prepared.rect.left, + right: (collapse == "left" ? rect.left : rect.right) - prepared.rect.left, + top: top, bottom: bot}; + if (!rect.left && !rect.right) result.bogus = true; + return result; + } + + function clearLineMeasurementCacheFor(lineView) { + if (lineView.measure) { + lineView.measure.cache = {}; + lineView.measure.heights = null; + if (lineView.rest) for (var i = 0; i < lineView.rest.length; i++) + lineView.measure.caches[i] = {}; + } + } + + function clearLineMeasurementCache(cm) { + cm.display.externalMeasure = null; + removeChildren(cm.display.lineMeasure); + for (var i = 0; i < cm.display.view.length; i++) + clearLineMeasurementCacheFor(cm.display.view[i]); + } + + function clearCaches(cm) { + clearLineMeasurementCache(cm); + cm.display.cachedCharWidth = cm.display.cachedTextHeight = cm.display.cachedPaddingH = null; + if (!cm.options.lineWrapping) cm.display.maxLineChanged = true; + cm.display.lineNumChars = null; + } + + function pageScrollX() { return window.pageXOffset || (document.documentElement || document.body).scrollLeft; } + function pageScrollY() { return window.pageYOffset || (document.documentElement || document.body).scrollTop; } + + // Converts a {top, bottom, left, right} box from line-local + // coordinates into another coordinate system. Context may be one of + // "line", "div" (display.lineDiv), "local"/null (editor), or "page". + function intoCoordSystem(cm, lineObj, rect, context) { + if (lineObj.widgets) for (var i = 0; i < lineObj.widgets.length; ++i) if (lineObj.widgets[i].above) { + var size = widgetHeight(lineObj.widgets[i]); + rect.top += size; rect.bottom += size; + } + if (context == "line") return rect; + if (!context) context = "local"; + var yOff = heightAtLine(lineObj); + if (context == "local") yOff += paddingTop(cm.display); + else yOff -= cm.display.viewOffset; + if (context == "page" || context == "window") { + var lOff = cm.display.lineSpace.getBoundingClientRect(); + yOff += lOff.top + (context == "window" ? 0 : pageScrollY()); + var xOff = lOff.left + (context == "window" ? 0 : pageScrollX()); + rect.left += xOff; rect.right += xOff; + } + rect.top += yOff; rect.bottom += yOff; + return rect; + } + + // Coverts a box from "div" coords to another coordinate system. + // Context may be "window", "page", "div", or "local"/null. + function fromCoordSystem(cm, coords, context) { + if (context == "div") return coords; + var left = coords.left, top = coords.top; + // First move into "page" coordinate system + if (context == "page") { + left -= pageScrollX(); + top -= pageScrollY(); + } else if (context == "local" || !context) { + var localBox = cm.display.sizer.getBoundingClientRect(); + left += localBox.left; + top += localBox.top; + } + + var lineSpaceBox = cm.display.lineSpace.getBoundingClientRect(); + return {left: left - lineSpaceBox.left, top: top - lineSpaceBox.top}; + } + + function charCoords(cm, pos, context, lineObj, bias) { + if (!lineObj) lineObj = getLine(cm.doc, pos.line); + return intoCoordSystem(cm, lineObj, measureChar(cm, lineObj, pos.ch, bias), context); + } + + // Returns a box for a given cursor position, which may have an + // 'other' property containing the position of the secondary cursor + // on a bidi boundary. + function cursorCoords(cm, pos, context, lineObj, preparedMeasure) { + lineObj = lineObj || getLine(cm.doc, pos.line); + if (!preparedMeasure) preparedMeasure = prepareMeasureForLine(cm, lineObj); + function get(ch, right) { + var m = measureCharPrepared(cm, preparedMeasure, ch, right ? "right" : "left"); + if (right) m.left = m.right; else m.right = m.left; + return intoCoordSystem(cm, lineObj, m, context); + } + function getBidi(ch, partPos) { + var part = order[partPos], right = part.level % 2; + if (ch == bidiLeft(part) && partPos && part.level < order[partPos - 1].level) { + part = order[--partPos]; + ch = bidiRight(part) - (part.level % 2 ? 0 : 1); + right = true; + } else if (ch == bidiRight(part) && partPos < order.length - 1 && part.level < order[partPos + 1].level) { + part = order[++partPos]; + ch = bidiLeft(part) - part.level % 2; + right = false; + } + if (right && ch == part.to && ch > part.from) return get(ch - 1); + return get(ch, right); + } + var order = getOrder(lineObj), ch = pos.ch; + if (!order) return get(ch); + var partPos = getBidiPartAt(order, ch); + var val = getBidi(ch, partPos); + if (bidiOther != null) val.other = getBidi(ch, bidiOther); + return val; + } + + // Used to cheaply estimate the coordinates for a position. Used for + // intermediate scroll updates. + function estimateCoords(cm, pos) { + var left = 0, pos = clipPos(cm.doc, pos); + if (!cm.options.lineWrapping) left = charWidth(cm.display) * pos.ch; + var lineObj = getLine(cm.doc, pos.line); + var top = heightAtLine(lineObj) + paddingTop(cm.display); + return {left: left, right: left, top: top, bottom: top + lineObj.height}; + } + + // Positions returned by coordsChar contain some extra information. + // xRel is the relative x position of the input coordinates compared + // to the found position (so xRel > 0 means the coordinates are to + // the right of the character position, for example). When outside + // is true, that means the coordinates lie outside the line's + // vertical range. + function PosWithInfo(line, ch, outside, xRel) { + var pos = Pos(line, ch); + pos.xRel = xRel; + if (outside) pos.outside = true; + return pos; + } + + // Compute the character position closest to the given coordinates. + // Input must be lineSpace-local ("div" coordinate system). + function coordsChar(cm, x, y) { + var doc = cm.doc; + y += cm.display.viewOffset; + if (y < 0) return PosWithInfo(doc.first, 0, true, -1); + var lineN = lineAtHeight(doc, y), last = doc.first + doc.size - 1; + if (lineN > last) + return PosWithInfo(doc.first + doc.size - 1, getLine(doc, last).text.length, true, 1); + if (x < 0) x = 0; + + var lineObj = getLine(doc, lineN); + for (;;) { + var found = coordsCharInner(cm, lineObj, lineN, x, y); + var merged = collapsedSpanAtEnd(lineObj); + var mergedPos = merged && merged.find(0, true); + if (merged && (found.ch > mergedPos.from.ch || found.ch == mergedPos.from.ch && found.xRel > 0)) + lineN = lineNo(lineObj = mergedPos.to.line); + else + return found; + } + } + + function coordsCharInner(cm, lineObj, lineNo, x, y) { + var innerOff = y - heightAtLine(lineObj); + var wrongLine = false, adjust = 2 * cm.display.wrapper.clientWidth; + var preparedMeasure = prepareMeasureForLine(cm, lineObj); + + function getX(ch) { + var sp = cursorCoords(cm, Pos(lineNo, ch), "line", lineObj, preparedMeasure); + wrongLine = true; + if (innerOff > sp.bottom) return sp.left - adjust; + else if (innerOff < sp.top) return sp.left + adjust; + else wrongLine = false; + return sp.left; + } + + var bidi = getOrder(lineObj), dist = lineObj.text.length; + var from = lineLeft(lineObj), to = lineRight(lineObj); + var fromX = getX(from), fromOutside = wrongLine, toX = getX(to), toOutside = wrongLine; + + if (x > toX) return PosWithInfo(lineNo, to, toOutside, 1); + // Do a binary search between these bounds. + for (;;) { + if (bidi ? to == from || to == moveVisually(lineObj, from, 1) : to - from <= 1) { + var ch = x < fromX || x - fromX <= toX - x ? from : to; + var xDiff = x - (ch == from ? fromX : toX); + while (isExtendingChar(lineObj.text.charAt(ch))) ++ch; + var pos = PosWithInfo(lineNo, ch, ch == from ? fromOutside : toOutside, + xDiff < -1 ? -1 : xDiff > 1 ? 1 : 0); + return pos; + } + var step = Math.ceil(dist / 2), middle = from + step; + if (bidi) { + middle = from; + for (var i = 0; i < step; ++i) middle = moveVisually(lineObj, middle, 1); + } + var middleX = getX(middle); + if (middleX > x) {to = middle; toX = middleX; if (toOutside = wrongLine) toX += 1000; dist = step;} + else {from = middle; fromX = middleX; fromOutside = wrongLine; dist -= step;} + } + } + + var measureText; + // Compute the default text height. + function textHeight(display) { + if (display.cachedTextHeight != null) return display.cachedTextHeight; + if (measureText == null) { + measureText = elt("pre"); + // Measure a bunch of lines, for browsers that compute + // fractional heights. + for (var i = 0; i < 49; ++i) { + measureText.appendChild(document.createTextNode("x")); + measureText.appendChild(elt("br")); + } + measureText.appendChild(document.createTextNode("x")); + } + removeChildrenAndAdd(display.measure, measureText); + var height = measureText.offsetHeight / 50; + if (height > 3) display.cachedTextHeight = height; + removeChildren(display.measure); + return height || 1; + } + + // Compute the default character width. + function charWidth(display) { + if (display.cachedCharWidth != null) return display.cachedCharWidth; + var anchor = elt("span", "xxxxxxxxxx"); + var pre = elt("pre", [anchor]); + removeChildrenAndAdd(display.measure, pre); + var rect = anchor.getBoundingClientRect(), width = (rect.right - rect.left) / 10; + if (width > 2) display.cachedCharWidth = width; + return width || 10; + } + + // OPERATIONS + + // Operations are used to wrap a series of changes to the editor + // state in such a way that each change won't have to update the + // cursor and display (which would be awkward, slow, and + // error-prone). Instead, display updates are batched and then all + // combined and executed at once. + + var nextOpId = 0; + // Start a new operation. + function startOperation(cm) { + cm.curOp = { + viewChanged: false, // Flag that indicates that lines might need to be redrawn + startHeight: cm.doc.height, // Used to detect need to update scrollbar + forceUpdate: false, // Used to force a redraw + updateInput: null, // Whether to reset the input textarea + typing: false, // Whether this reset should be careful to leave existing text (for compositing) + changeObjs: null, // Accumulated changes, for firing change events + cursorActivityHandlers: null, // Set of handlers to fire cursorActivity on + selectionChanged: false, // Whether the selection needs to be redrawn + updateMaxLine: false, // Set when the widest line needs to be determined anew + scrollLeft: null, scrollTop: null, // Intermediate scroll position, not pushed to DOM yet + scrollToPos: null, // Used to scroll to a specific position + id: ++nextOpId // Unique ID + }; + if (!delayedCallbackDepth++) delayedCallbacks = []; + } + + // Finish an operation, updating the display and signalling delayed events + function endOperation(cm) { + var op = cm.curOp, doc = cm.doc, display = cm.display; + cm.curOp = null; + + if (op.updateMaxLine) findMaxLine(cm); + + // If it looks like an update might be needed, call updateDisplay + if (op.viewChanged || op.forceUpdate || op.scrollTop != null || + op.scrollToPos && (op.scrollToPos.from.line < display.viewFrom || + op.scrollToPos.to.line >= display.viewTo) || + display.maxLineChanged && cm.options.lineWrapping) { + var updated = updateDisplay(cm, {top: op.scrollTop, ensure: op.scrollToPos}, op.forceUpdate); + if (cm.display.scroller.offsetHeight) cm.doc.scrollTop = cm.display.scroller.scrollTop; + } + // If no update was run, but the selection changed, redraw that. + if (!updated && op.selectionChanged) updateSelection(cm); + if (!updated && op.startHeight != cm.doc.height) updateScrollbars(cm); + + // Propagate the scroll position to the actual DOM scroller + if (op.scrollTop != null && display.scroller.scrollTop != op.scrollTop) { + var top = Math.max(0, Math.min(display.scroller.scrollHeight - display.scroller.clientHeight, op.scrollTop)); + display.scroller.scrollTop = display.scrollbarV.scrollTop = doc.scrollTop = top; + } + if (op.scrollLeft != null && display.scroller.scrollLeft != op.scrollLeft) { + var left = Math.max(0, Math.min(display.scroller.scrollWidth - display.scroller.clientWidth, op.scrollLeft)); + display.scroller.scrollLeft = display.scrollbarH.scrollLeft = doc.scrollLeft = left; + alignHorizontally(cm); + } + // If we need to scroll a specific position into view, do so. + if (op.scrollToPos) { + var coords = scrollPosIntoView(cm, clipPos(cm.doc, op.scrollToPos.from), + clipPos(cm.doc, op.scrollToPos.to), op.scrollToPos.margin); + if (op.scrollToPos.isCursor && cm.state.focused) maybeScrollWindow(cm, coords); + } + + if (op.selectionChanged) restartBlink(cm); + + if (cm.state.focused && op.updateInput) + resetInput(cm, op.typing); + + // Fire events for markers that are hidden/unidden by editing or + // undoing + var hidden = op.maybeHiddenMarkers, unhidden = op.maybeUnhiddenMarkers; + if (hidden) for (var i = 0; i < hidden.length; ++i) + if (!hidden[i].lines.length) signal(hidden[i], "hide"); + if (unhidden) for (var i = 0; i < unhidden.length; ++i) + if (unhidden[i].lines.length) signal(unhidden[i], "unhide"); + + var delayed; + if (!--delayedCallbackDepth) { + delayed = delayedCallbacks; + delayedCallbacks = null; + } + // Fire change events, and delayed event handlers + if (op.changeObjs) + signal(cm, "changes", cm, op.changeObjs); + if (delayed) for (var i = 0; i < delayed.length; ++i) delayed[i](); + if (op.cursorActivityHandlers) + for (var i = 0; i < op.cursorActivityHandlers.length; i++) + op.cursorActivityHandlers[i](cm); + } + + // Run the given function in an operation + function runInOp(cm, f) { + if (cm.curOp) return f(); + startOperation(cm); + try { return f(); } + finally { endOperation(cm); } + } + // Wraps a function in an operation. Returns the wrapped function. + function operation(cm, f) { + return function() { + if (cm.curOp) return f.apply(cm, arguments); + startOperation(cm); + try { return f.apply(cm, arguments); } + finally { endOperation(cm); } + }; + } + // Used to add methods to editor and doc instances, wrapping them in + // operations. + function methodOp(f) { + return function() { + if (this.curOp) return f.apply(this, arguments); + startOperation(this); + try { return f.apply(this, arguments); } + finally { endOperation(this); } + }; + } + function docMethodOp(f) { + return function() { + var cm = this.cm; + if (!cm || cm.curOp) return f.apply(this, arguments); + startOperation(cm); + try { return f.apply(this, arguments); } + finally { endOperation(cm); } + }; + } + + // VIEW TRACKING + + // These objects are used to represent the visible (currently drawn) + // part of the document. A LineView may correspond to multiple + // logical lines, if those are connected by collapsed ranges. + function LineView(doc, line, lineN) { + // The starting line + this.line = line; + // Continuing lines, if any + this.rest = visualLineContinued(line); + // Number of logical lines in this visual line + this.size = this.rest ? lineNo(lst(this.rest)) - lineN + 1 : 1; + this.node = this.text = null; + this.hidden = lineIsHidden(doc, line); + } + + // Create a range of LineView objects for the given lines. + function buildViewArray(cm, from, to) { + var array = [], nextPos; + for (var pos = from; pos < to; pos = nextPos) { + var view = new LineView(cm.doc, getLine(cm.doc, pos), pos); + nextPos = pos + view.size; + array.push(view); + } + return array; + } + + // Updates the display.view data structure for a given change to the + // document. From and to are in pre-change coordinates. Lendiff is + // the amount of lines added or subtracted by the change. This is + // used for changes that span multiple lines, or change the way + // lines are divided into visual lines. regLineChange (below) + // registers single-line changes. + function regChange(cm, from, to, lendiff) { + if (from == null) from = cm.doc.first; + if (to == null) to = cm.doc.first + cm.doc.size; + if (!lendiff) lendiff = 0; + + var display = cm.display; + if (lendiff && to < display.viewTo && + (display.updateLineNumbers == null || display.updateLineNumbers > from)) + display.updateLineNumbers = from; + + cm.curOp.viewChanged = true; + + if (from >= display.viewTo) { // Change after + if (sawCollapsedSpans && visualLineNo(cm.doc, from) < display.viewTo) + resetView(cm); + } else if (to <= display.viewFrom) { // Change before + if (sawCollapsedSpans && visualLineEndNo(cm.doc, to + lendiff) > display.viewFrom) { + resetView(cm); + } else { + display.viewFrom += lendiff; + display.viewTo += lendiff; + } + } else if (from <= display.viewFrom && to >= display.viewTo) { // Full overlap + resetView(cm); + } else if (from <= display.viewFrom) { // Top overlap + var cut = viewCuttingPoint(cm, to, to + lendiff, 1); + if (cut) { + display.view = display.view.slice(cut.index); + display.viewFrom = cut.lineN; + display.viewTo += lendiff; + } else { + resetView(cm); + } + } else if (to >= display.viewTo) { // Bottom overlap + var cut = viewCuttingPoint(cm, from, from, -1); + if (cut) { + display.view = display.view.slice(0, cut.index); + display.viewTo = cut.lineN; + } else { + resetView(cm); + } + } else { // Gap in the middle + var cutTop = viewCuttingPoint(cm, from, from, -1); + var cutBot = viewCuttingPoint(cm, to, to + lendiff, 1); + if (cutTop && cutBot) { + display.view = display.view.slice(0, cutTop.index) + .concat(buildViewArray(cm, cutTop.lineN, cutBot.lineN)) + .concat(display.view.slice(cutBot.index)); + display.viewTo += lendiff; + } else { + resetView(cm); + } + } + + var ext = display.externalMeasured; + if (ext) { + if (to < ext.lineN) + ext.lineN += lendiff; + else if (from < ext.lineN + ext.size) + display.externalMeasured = null; + } + } + + // Register a change to a single line. Type must be one of "text", + // "gutter", "class", "widget" + function regLineChange(cm, line, type) { + cm.curOp.viewChanged = true; + var display = cm.display, ext = cm.display.externalMeasured; + if (ext && line >= ext.lineN && line < ext.lineN + ext.size) + display.externalMeasured = null; + + if (line < display.viewFrom || line >= display.viewTo) return; + var lineView = display.view[findViewIndex(cm, line)]; + if (lineView.node == null) return; + var arr = lineView.changes || (lineView.changes = []); + if (indexOf(arr, type) == -1) arr.push(type); + } + + // Clear the view. + function resetView(cm) { + cm.display.viewFrom = cm.display.viewTo = cm.doc.first; + cm.display.view = []; + cm.display.viewOffset = 0; + } + + // Find the view element corresponding to a given line. Return null + // when the line isn't visible. + function findViewIndex(cm, n) { + if (n >= cm.display.viewTo) return null; + n -= cm.display.viewFrom; + if (n < 0) return null; + var view = cm.display.view; + for (var i = 0; i < view.length; i++) { + n -= view[i].size; + if (n < 0) return i; + } + } + + function viewCuttingPoint(cm, oldN, newN, dir) { + var index = findViewIndex(cm, oldN), diff, view = cm.display.view; + if (!sawCollapsedSpans || newN == cm.doc.first + cm.doc.size) + return {index: index, lineN: newN}; + for (var i = 0, n = cm.display.viewFrom; i < index; i++) + n += view[i].size; + if (n != oldN) { + if (dir > 0) { + if (index == view.length - 1) return null; + diff = (n + view[index].size) - oldN; + index++; + } else { + diff = n - oldN; + } + oldN += diff; newN += diff; + } + while (visualLineNo(cm.doc, newN) != newN) { + if (index == (dir < 0 ? 0 : view.length - 1)) return null; + newN += dir * view[index - (dir < 0 ? 1 : 0)].size; + index += dir; + } + return {index: index, lineN: newN}; + } + + // Force the view to cover a given range, adding empty view element + // or clipping off existing ones as needed. + function adjustView(cm, from, to) { + var display = cm.display, view = display.view; + if (view.length == 0 || from >= display.viewTo || to <= display.viewFrom) { + display.view = buildViewArray(cm, from, to); + display.viewFrom = from; + } else { + if (display.viewFrom > from) + display.view = buildViewArray(cm, from, display.viewFrom).concat(display.view); + else if (display.viewFrom < from) + display.view = display.view.slice(findViewIndex(cm, from)); + display.viewFrom = from; + if (display.viewTo < to) + display.view = display.view.concat(buildViewArray(cm, display.viewTo, to)); + else if (display.viewTo > to) + display.view = display.view.slice(0, findViewIndex(cm, to)); + } + display.viewTo = to; + } + + // Count the number of lines in the view whose DOM representation is + // out of date (or nonexistent). + function countDirtyView(cm) { + var view = cm.display.view, dirty = 0; + for (var i = 0; i < view.length; i++) { + var lineView = view[i]; + if (!lineView.hidden && (!lineView.node || lineView.changes)) ++dirty; + } + return dirty; + } + + // INPUT HANDLING + + // Poll for input changes, using the normal rate of polling. This + // runs as long as the editor is focused. + function slowPoll(cm) { + if (cm.display.pollingFast) return; + cm.display.poll.set(cm.options.pollInterval, function() { + readInput(cm); + if (cm.state.focused) slowPoll(cm); + }); + } + + // When an event has just come in that is likely to add or change + // something in the input textarea, we poll faster, to ensure that + // the change appears on the screen quickly. + function fastPoll(cm) { + var missed = false; + cm.display.pollingFast = true; + function p() { + var changed = readInput(cm); + if (!changed && !missed) {missed = true; cm.display.poll.set(60, p);} + else {cm.display.pollingFast = false; slowPoll(cm);} + } + cm.display.poll.set(20, p); + } + + // Read input from the textarea, and update the document to match. + // When something is selected, it is present in the textarea, and + // selected (unless it is huge, in which case a placeholder is + // used). When nothing is selected, the cursor sits after previously + // seen text (can be empty), which is stored in prevInput (we must + // not reset the textarea when typing, because that breaks IME). + function readInput(cm) { + var input = cm.display.input, prevInput = cm.display.prevInput, doc = cm.doc; + // Since this is called a *lot*, try to bail out as cheaply as + // possible when it is clear that nothing happened. hasSelection + // will be the case when there is a lot of text in the textarea, + // in which case reading its value would be expensive. + if (!cm.state.focused || (hasSelection(input) && !prevInput) || isReadOnly(cm) || cm.options.disableInput) + return false; + // See paste handler for more on the fakedLastChar kludge + if (cm.state.pasteIncoming && cm.state.fakedLastChar) { + input.value = input.value.substring(0, input.value.length - 1); + cm.state.fakedLastChar = false; + } + var text = input.value; + // If nothing changed, bail. + if (text == prevInput && !cm.somethingSelected()) return false; + // Work around nonsensical selection resetting in IE9/10 + if (ie && !ie_upto8 && cm.display.inputHasSelection === text) { + resetInput(cm); + return false; + } + + var withOp = !cm.curOp; + if (withOp) startOperation(cm); + cm.display.shift = false; + + if (text.charCodeAt(0) == 0x200b && doc.sel == cm.display.selForContextMenu && !prevInput) + prevInput = "\u200b"; + // Find the part of the input that is actually new + var same = 0, l = Math.min(prevInput.length, text.length); + while (same < l && prevInput.charCodeAt(same) == text.charCodeAt(same)) ++same; + var inserted = text.slice(same), textLines = splitLines(inserted); + + // When pasing N lines into N selections, insert one line per selection + var multiPaste = cm.state.pasteIncoming && textLines.length > 1 && doc.sel.ranges.length == textLines.length; + + // Normal behavior is to insert the new text into every selection + for (var i = doc.sel.ranges.length - 1; i >= 0; i--) { + var range = doc.sel.ranges[i]; + var from = range.from(), to = range.to(); + // Handle deletion + if (same < prevInput.length) + from = Pos(from.line, from.ch - (prevInput.length - same)); + // Handle overwrite + else if (cm.state.overwrite && range.empty() && !cm.state.pasteIncoming) + to = Pos(to.line, Math.min(getLine(doc, to.line).text.length, to.ch + lst(textLines).length)); + var updateInput = cm.curOp.updateInput; + var changeEvent = {from: from, to: to, text: multiPaste ? [textLines[i]] : textLines, + origin: cm.state.pasteIncoming ? "paste" : cm.state.cutIncoming ? "cut" : "+input"}; + makeChange(cm.doc, changeEvent); + signalLater(cm, "inputRead", cm, changeEvent); + // When an 'electric' character is inserted, immediately trigger a reindent + if (inserted && !cm.state.pasteIncoming && cm.options.electricChars && + cm.options.smartIndent && range.head.ch < 100 && + (!i || doc.sel.ranges[i - 1].head.line != range.head.line)) { + var mode = cm.getModeAt(range.head); + if (mode.electricChars) { + for (var j = 0; j < mode.electricChars.length; j++) + if (inserted.indexOf(mode.electricChars.charAt(j)) > -1) { + indentLine(cm, range.head.line, "smart"); + break; + } + } else if (mode.electricInput) { + var end = changeEnd(changeEvent); + if (mode.electricInput.test(getLine(doc, end.line).text.slice(0, end.ch))) + indentLine(cm, range.head.line, "smart"); + } + } + } + ensureCursorVisible(cm); + cm.curOp.updateInput = updateInput; + cm.curOp.typing = true; + + // Don't leave long text in the textarea, since it makes further polling slow + if (text.length > 1000 || text.indexOf("\n") > -1) input.value = cm.display.prevInput = ""; + else cm.display.prevInput = text; + if (withOp) endOperation(cm); + cm.state.pasteIncoming = cm.state.cutIncoming = false; + return true; + } + + // Reset the input to correspond to the selection (or to be empty, + // when not typing and nothing is selected) + function resetInput(cm, typing) { + var minimal, selected, doc = cm.doc; + if (cm.somethingSelected()) { + cm.display.prevInput = ""; + var range = doc.sel.primary(); + minimal = hasCopyEvent && + (range.to().line - range.from().line > 100 || (selected = cm.getSelection()).length > 1000); + var content = minimal ? "-" : selected || cm.getSelection(); + cm.display.input.value = content; + if (cm.state.focused) selectInput(cm.display.input); + if (ie && !ie_upto8) cm.display.inputHasSelection = content; + } else if (!typing) { + cm.display.prevInput = cm.display.input.value = ""; + if (ie && !ie_upto8) cm.display.inputHasSelection = null; + } + cm.display.inaccurateSelection = minimal; + } + + function focusInput(cm) { + if (cm.options.readOnly != "nocursor" && (!mobile || activeElt() != cm.display.input)) + cm.display.input.focus(); + } + + function ensureFocus(cm) { + if (!cm.state.focused) { focusInput(cm); onFocus(cm); } + } + + function isReadOnly(cm) { + return cm.options.readOnly || cm.doc.cantEdit; + } + + // EVENT HANDLERS + + // Attach the necessary event handlers when initializing the editor + function registerEventHandlers(cm) { + var d = cm.display; + on(d.scroller, "mousedown", operation(cm, onMouseDown)); + // Older IE's will not fire a second mousedown for a double click + if (ie_upto10) + on(d.scroller, "dblclick", operation(cm, function(e) { + if (signalDOMEvent(cm, e)) return; + var pos = posFromMouse(cm, e); + if (!pos || clickInGutter(cm, e) || eventInWidget(cm.display, e)) return; + e_preventDefault(e); + var word = findWordAt(cm, pos); + extendSelection(cm.doc, word.anchor, word.head); + })); + else + on(d.scroller, "dblclick", function(e) { signalDOMEvent(cm, e) || e_preventDefault(e); }); + // Prevent normal selection in the editor (we handle our own) + on(d.lineSpace, "selectstart", function(e) { + if (!eventInWidget(d, e)) e_preventDefault(e); + }); + // Some browsers fire contextmenu *after* opening the menu, at + // which point we can't mess with it anymore. Context menu is + // handled in onMouseDown for these browsers. + if (!captureRightClick) on(d.scroller, "contextmenu", function(e) {onContextMenu(cm, e);}); + + // Sync scrolling between fake scrollbars and real scrollable + // area, ensure viewport is updated when scrolling. + on(d.scroller, "scroll", function() { + if (d.scroller.clientHeight) { + setScrollTop(cm, d.scroller.scrollTop); + setScrollLeft(cm, d.scroller.scrollLeft, true); + signal(cm, "scroll", cm); + } + }); + on(d.scrollbarV, "scroll", function() { + if (d.scroller.clientHeight) setScrollTop(cm, d.scrollbarV.scrollTop); + }); + on(d.scrollbarH, "scroll", function() { + if (d.scroller.clientHeight) setScrollLeft(cm, d.scrollbarH.scrollLeft); + }); + + // Listen to wheel events in order to try and update the viewport on time. + on(d.scroller, "mousewheel", function(e){onScrollWheel(cm, e);}); + on(d.scroller, "DOMMouseScroll", function(e){onScrollWheel(cm, e);}); + + // Prevent clicks in the scrollbars from killing focus + function reFocus() { if (cm.state.focused) setTimeout(bind(focusInput, cm), 0); } + on(d.scrollbarH, "mousedown", reFocus); + on(d.scrollbarV, "mousedown", reFocus); + // Prevent wrapper from ever scrolling + on(d.wrapper, "scroll", function() { d.wrapper.scrollTop = d.wrapper.scrollLeft = 0; }); + + on(d.input, "keyup", operation(cm, onKeyUp)); + on(d.input, "input", function() { + if (ie && !ie_upto8 && cm.display.inputHasSelection) cm.display.inputHasSelection = null; + fastPoll(cm); + }); + on(d.input, "keydown", operation(cm, onKeyDown)); + on(d.input, "keypress", operation(cm, onKeyPress)); + on(d.input, "focus", bind(onFocus, cm)); + on(d.input, "blur", bind(onBlur, cm)); + + function drag_(e) { + if (!signalDOMEvent(cm, e)) e_stop(e); + } + if (cm.options.dragDrop) { + on(d.scroller, "dragstart", function(e){onDragStart(cm, e);}); + on(d.scroller, "dragenter", drag_); + on(d.scroller, "dragover", drag_); + on(d.scroller, "drop", operation(cm, onDrop)); + } + on(d.scroller, "paste", function(e) { + if (eventInWidget(d, e)) return; + cm.state.pasteIncoming = true; + focusInput(cm); + fastPoll(cm); + }); + on(d.input, "paste", function() { + // Workaround for webkit bug https://bugs.webkit.org/show_bug.cgi?id=90206 + // Add a char to the end of textarea before paste occur so that + // selection doesn't span to the end of textarea. + if (webkit && !cm.state.fakedLastChar && !(new Date - cm.state.lastMiddleDown < 200)) { + var start = d.input.selectionStart, end = d.input.selectionEnd; + d.input.value += "$"; + d.input.selectionStart = start; + d.input.selectionEnd = end; + cm.state.fakedLastChar = true; + } + cm.state.pasteIncoming = true; + fastPoll(cm); + }); + + function prepareCopyCut(e) { + if (cm.somethingSelected()) { + if (d.inaccurateSelection) { + d.prevInput = ""; + d.inaccurateSelection = false; + d.input.value = cm.getSelection(); + selectInput(d.input); + } + } else { + var text = "", ranges = []; + for (var i = 0; i < cm.doc.sel.ranges.length; i++) { + var line = cm.doc.sel.ranges[i].head.line; + var lineRange = {anchor: Pos(line, 0), head: Pos(line + 1, 0)}; + ranges.push(lineRange); + text += cm.getRange(lineRange.anchor, lineRange.head); + } + if (e.type == "cut") { + cm.setSelections(ranges, null, sel_dontScroll); + } else { + d.prevInput = ""; + d.input.value = text; + selectInput(d.input); + } + } + if (e.type == "cut") cm.state.cutIncoming = true; + } + on(d.input, "cut", prepareCopyCut); + on(d.input, "copy", prepareCopyCut); + + // Needed to handle Tab key in KHTML + if (khtml) on(d.sizer, "mouseup", function() { + if (activeElt() == d.input) d.input.blur(); + focusInput(cm); + }); + } + + // Called when the window resizes + function onResize(cm) { + // Might be a text scaling operation, clear size caches. + var d = cm.display; + d.cachedCharWidth = d.cachedTextHeight = d.cachedPaddingH = null; + cm.setSize(); + } + + // MOUSE EVENTS + + // Return true when the given mouse event happened in a widget + function eventInWidget(display, e) { + for (var n = e_target(e); n != display.wrapper; n = n.parentNode) { + if (!n || n.ignoreEvents || n.parentNode == display.sizer && n != display.mover) return true; + } + } + + // Given a mouse event, find the corresponding position. If liberal + // is false, it checks whether a gutter or scrollbar was clicked, + // and returns null if it was. forRect is used by rectangular + // selections, and tries to estimate a character position even for + // coordinates beyond the right of the text. + function posFromMouse(cm, e, liberal, forRect) { + var display = cm.display; + if (!liberal) { + var target = e_target(e); + if (target == display.scrollbarH || target == display.scrollbarV || + target == display.scrollbarFiller || target == display.gutterFiller) return null; + } + var x, y, space = display.lineSpace.getBoundingClientRect(); + // Fails unpredictably on IE[67] when mouse is dragged around quickly. + try { x = e.clientX - space.left; y = e.clientY - space.top; } + catch (e) { return null; } + var coords = coordsChar(cm, x, y), line; + if (forRect && coords.xRel == 1 && (line = getLine(cm.doc, coords.line).text).length == coords.ch) { + var colDiff = countColumn(line, line.length, cm.options.tabSize) - line.length; + coords = Pos(coords.line, Math.max(0, Math.round((x - paddingH(cm.display).left) / charWidth(cm.display)) - colDiff)); + } + return coords; + } + + // A mouse down can be a single click, double click, triple click, + // start of selection drag, start of text drag, new cursor + // (ctrl-click), rectangle drag (alt-drag), or xwin + // middle-click-paste. Or it might be a click on something we should + // not interfere with, such as a scrollbar or widget. + function onMouseDown(e) { + if (signalDOMEvent(this, e)) return; + var cm = this, display = cm.display; + display.shift = e.shiftKey; + + if (eventInWidget(display, e)) { + if (!webkit) { + // Briefly turn off draggability, to allow widgets to do + // normal dragging things. + display.scroller.draggable = false; + setTimeout(function(){display.scroller.draggable = true;}, 100); + } + return; + } + if (clickInGutter(cm, e)) return; + var start = posFromMouse(cm, e); + window.focus(); + + switch (e_button(e)) { + case 1: + if (start) + leftButtonDown(cm, e, start); + else if (e_target(e) == display.scroller) + e_preventDefault(e); + break; + case 2: + if (webkit) cm.state.lastMiddleDown = +new Date; + if (start) extendSelection(cm.doc, start); + setTimeout(bind(focusInput, cm), 20); + e_preventDefault(e); + break; + case 3: + if (captureRightClick) onContextMenu(cm, e); + break; + } + } + + var lastClick, lastDoubleClick; + function leftButtonDown(cm, e, start) { + setTimeout(bind(ensureFocus, cm), 0); + + var now = +new Date, type; + if (lastDoubleClick && lastDoubleClick.time > now - 400 && cmp(lastDoubleClick.pos, start) == 0) { + type = "triple"; + } else if (lastClick && lastClick.time > now - 400 && cmp(lastClick.pos, start) == 0) { + type = "double"; + lastDoubleClick = {time: now, pos: start}; + } else { + type = "single"; + lastClick = {time: now, pos: start}; + } + + var sel = cm.doc.sel, addNew = mac ? e.metaKey : e.ctrlKey; + if (cm.options.dragDrop && dragAndDrop && !addNew && !isReadOnly(cm) && + type == "single" && sel.contains(start) > -1 && sel.somethingSelected()) + leftButtonStartDrag(cm, e, start); + else + leftButtonSelect(cm, e, start, type, addNew); + } + + // Start a text drag. When it ends, see if any dragging actually + // happen, and treat as a click if it didn't. + function leftButtonStartDrag(cm, e, start) { + var display = cm.display; + var dragEnd = operation(cm, function(e2) { + if (webkit) display.scroller.draggable = false; + cm.state.draggingText = false; + off(document, "mouseup", dragEnd); + off(display.scroller, "drop", dragEnd); + if (Math.abs(e.clientX - e2.clientX) + Math.abs(e.clientY - e2.clientY) < 10) { + e_preventDefault(e2); + extendSelection(cm.doc, start); + focusInput(cm); + // Work around unexplainable focus problem in IE9 (#2127) + if (ie_upto10 && !ie_upto8) + setTimeout(function() {document.body.focus(); focusInput(cm);}, 20); + } + }); + // Let the drag handler handle this. + if (webkit) display.scroller.draggable = true; + cm.state.draggingText = dragEnd; + // IE's approach to draggable + if (display.scroller.dragDrop) display.scroller.dragDrop(); + on(document, "mouseup", dragEnd); + on(display.scroller, "drop", dragEnd); + } + + // Normal selection, as opposed to text dragging. + function leftButtonSelect(cm, e, start, type, addNew) { + var display = cm.display, doc = cm.doc; + e_preventDefault(e); + + var ourRange, ourIndex, startSel = doc.sel; + if (addNew && !e.shiftKey) { + ourIndex = doc.sel.contains(start); + if (ourIndex > -1) + ourRange = doc.sel.ranges[ourIndex]; + else + ourRange = new Range(start, start); + } else { + ourRange = doc.sel.primary(); + } + + if (e.altKey) { + type = "rect"; + if (!addNew) ourRange = new Range(start, start); + start = posFromMouse(cm, e, true, true); + ourIndex = -1; + } else if (type == "double") { + var word = findWordAt(cm, start); + if (cm.display.shift || doc.extend) + ourRange = extendRange(doc, ourRange, word.anchor, word.head); + else + ourRange = word; + } else if (type == "triple") { + var line = new Range(Pos(start.line, 0), clipPos(doc, Pos(start.line + 1, 0))); + if (cm.display.shift || doc.extend) + ourRange = extendRange(doc, ourRange, line.anchor, line.head); + else + ourRange = line; + } else { + ourRange = extendRange(doc, ourRange, start); + } + + if (!addNew) { + ourIndex = 0; + setSelection(doc, new Selection([ourRange], 0), sel_mouse); + startSel = doc.sel; + } else if (ourIndex > -1) { + replaceOneSelection(doc, ourIndex, ourRange, sel_mouse); + } else { + ourIndex = doc.sel.ranges.length; + setSelection(doc, normalizeSelection(doc.sel.ranges.concat([ourRange]), ourIndex), + {scroll: false, origin: "*mouse"}); + } + + var lastPos = start; + function extendTo(pos) { + if (cmp(lastPos, pos) == 0) return; + lastPos = pos; + + if (type == "rect") { + var ranges = [], tabSize = cm.options.tabSize; + var startCol = countColumn(getLine(doc, start.line).text, start.ch, tabSize); + var posCol = countColumn(getLine(doc, pos.line).text, pos.ch, tabSize); + var left = Math.min(startCol, posCol), right = Math.max(startCol, posCol); + for (var line = Math.min(start.line, pos.line), end = Math.min(cm.lastLine(), Math.max(start.line, pos.line)); + line <= end; line++) { + var text = getLine(doc, line).text, leftPos = findColumn(text, left, tabSize); + if (left == right) + ranges.push(new Range(Pos(line, leftPos), Pos(line, leftPos))); + else if (text.length > leftPos) + ranges.push(new Range(Pos(line, leftPos), Pos(line, findColumn(text, right, tabSize)))); + } + if (!ranges.length) ranges.push(new Range(start, start)); + setSelection(doc, normalizeSelection(startSel.ranges.slice(0, ourIndex).concat(ranges), ourIndex), + {origin: "*mouse", scroll: false}); + cm.scrollIntoView(pos); + } else { + var oldRange = ourRange; + var anchor = oldRange.anchor, head = pos; + if (type != "single") { + if (type == "double") + var range = findWordAt(cm, pos); + else + var range = new Range(Pos(pos.line, 0), clipPos(doc, Pos(pos.line + 1, 0))); + if (cmp(range.anchor, anchor) > 0) { + head = range.head; + anchor = minPos(oldRange.from(), range.anchor); + } else { + head = range.anchor; + anchor = maxPos(oldRange.to(), range.head); + } + } + var ranges = startSel.ranges.slice(0); + ranges[ourIndex] = new Range(clipPos(doc, anchor), head); + setSelection(doc, normalizeSelection(ranges, ourIndex), sel_mouse); + } + } + + var editorSize = display.wrapper.getBoundingClientRect(); + // Used to ensure timeout re-tries don't fire when another extend + // happened in the meantime (clearTimeout isn't reliable -- at + // least on Chrome, the timeouts still happen even when cleared, + // if the clear happens after their scheduled firing time). + var counter = 0; + + function extend(e) { + var curCount = ++counter; + var cur = posFromMouse(cm, e, true, type == "rect"); + if (!cur) return; + if (cmp(cur, lastPos) != 0) { + ensureFocus(cm); + extendTo(cur); + var visible = visibleLines(display, doc); + if (cur.line >= visible.to || cur.line < visible.from) + setTimeout(operation(cm, function(){if (counter == curCount) extend(e);}), 150); + } else { + var outside = e.clientY < editorSize.top ? -20 : e.clientY > editorSize.bottom ? 20 : 0; + if (outside) setTimeout(operation(cm, function() { + if (counter != curCount) return; + display.scroller.scrollTop += outside; + extend(e); + }), 50); + } + } + + function done(e) { + counter = Infinity; + e_preventDefault(e); + focusInput(cm); + off(document, "mousemove", move); + off(document, "mouseup", up); + doc.history.lastSelOrigin = null; + } + + var move = operation(cm, function(e) { + if ((ie && !ie_upto9) ? !e.buttons : !e_button(e)) done(e); + else extend(e); + }); + var up = operation(cm, done); + on(document, "mousemove", move); + on(document, "mouseup", up); + } + + // Determines whether an event happened in the gutter, and fires the + // handlers for the corresponding event. + function gutterEvent(cm, e, type, prevent, signalfn) { + try { var mX = e.clientX, mY = e.clientY; } + catch(e) { return false; } + if (mX >= Math.floor(cm.display.gutters.getBoundingClientRect().right)) return false; + if (prevent) e_preventDefault(e); + + var display = cm.display; + var lineBox = display.lineDiv.getBoundingClientRect(); + + if (mY > lineBox.bottom || !hasHandler(cm, type)) return e_defaultPrevented(e); + mY -= lineBox.top - display.viewOffset; + + for (var i = 0; i < cm.options.gutters.length; ++i) { + var g = display.gutters.childNodes[i]; + if (g && g.getBoundingClientRect().right >= mX) { + var line = lineAtHeight(cm.doc, mY); + var gutter = cm.options.gutters[i]; + signalfn(cm, type, cm, line, gutter, e); + return e_defaultPrevented(e); + } + } + } + + function clickInGutter(cm, e) { + return gutterEvent(cm, e, "gutterClick", true, signalLater); + } + + // Kludge to work around strange IE behavior where it'll sometimes + // re-fire a series of drag-related events right after the drop (#1551) + var lastDrop = 0; + + function onDrop(e) { + var cm = this; + if (signalDOMEvent(cm, e) || eventInWidget(cm.display, e)) + return; + e_preventDefault(e); + if (ie) lastDrop = +new Date; + var pos = posFromMouse(cm, e, true), files = e.dataTransfer.files; + if (!pos || isReadOnly(cm)) return; + // Might be a file drop, in which case we simply extract the text + // and insert it. + if (files && files.length && window.FileReader && window.File) { + var n = files.length, text = Array(n), read = 0; + var loadFile = function(file, i) { + var reader = new FileReader; + reader.onload = operation(cm, function() { + text[i] = reader.result; + if (++read == n) { + pos = clipPos(cm.doc, pos); + var change = {from: pos, to: pos, text: splitLines(text.join("\n")), origin: "paste"}; + makeChange(cm.doc, change); + setSelectionReplaceHistory(cm.doc, simpleSelection(pos, changeEnd(change))); + } + }); + reader.readAsText(file); + }; + for (var i = 0; i < n; ++i) loadFile(files[i], i); + } else { // Normal drop + // Don't do a replace if the drop happened inside of the selected text. + if (cm.state.draggingText && cm.doc.sel.contains(pos) > -1) { + cm.state.draggingText(e); + // Ensure the editor is re-focused + setTimeout(bind(focusInput, cm), 20); + return; + } + try { + var text = e.dataTransfer.getData("Text"); + if (text) { + var selected = cm.state.draggingText && cm.listSelections(); + setSelectionNoUndo(cm.doc, simpleSelection(pos, pos)); + if (selected) for (var i = 0; i < selected.length; ++i) + replaceRange(cm.doc, "", selected[i].anchor, selected[i].head, "drag"); + cm.replaceSelection(text, "around", "paste"); + focusInput(cm); + } + } + catch(e){} + } + } + + function onDragStart(cm, e) { + if (ie && (!cm.state.draggingText || +new Date - lastDrop < 100)) { e_stop(e); return; } + if (signalDOMEvent(cm, e) || eventInWidget(cm.display, e)) return; + + e.dataTransfer.setData("Text", cm.getSelection()); + + // Use dummy image instead of default browsers image. + // Recent Safari (~6.0.2) have a tendency to segfault when this happens, so we don't do it there. + if (e.dataTransfer.setDragImage && !safari) { + var img = elt("img", null, null, "position: fixed; left: 0; top: 0;"); + img.src = "data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw=="; + if (presto) { + img.width = img.height = 1; + cm.display.wrapper.appendChild(img); + // Force a relayout, or Opera won't use our image for some obscure reason + img._top = img.offsetTop; + } + e.dataTransfer.setDragImage(img, 0, 0); + if (presto) img.parentNode.removeChild(img); + } + } + + // SCROLL EVENTS + + // Sync the scrollable area and scrollbars, ensure the viewport + // covers the visible area. + function setScrollTop(cm, val) { + if (Math.abs(cm.doc.scrollTop - val) < 2) return; + cm.doc.scrollTop = val; + if (!gecko) updateDisplay(cm, {top: val}); + if (cm.display.scroller.scrollTop != val) cm.display.scroller.scrollTop = val; + if (cm.display.scrollbarV.scrollTop != val) cm.display.scrollbarV.scrollTop = val; + if (gecko) updateDisplay(cm); + startWorker(cm, 100); + } + // Sync scroller and scrollbar, ensure the gutter elements are + // aligned. + function setScrollLeft(cm, val, isScroller) { + if (isScroller ? val == cm.doc.scrollLeft : Math.abs(cm.doc.scrollLeft - val) < 2) return; + val = Math.min(val, cm.display.scroller.scrollWidth - cm.display.scroller.clientWidth); + cm.doc.scrollLeft = val; + alignHorizontally(cm); + if (cm.display.scroller.scrollLeft != val) cm.display.scroller.scrollLeft = val; + if (cm.display.scrollbarH.scrollLeft != val) cm.display.scrollbarH.scrollLeft = val; + } + + // Since the delta values reported on mouse wheel events are + // unstandardized between browsers and even browser versions, and + // generally horribly unpredictable, this code starts by measuring + // the scroll effect that the first few mouse wheel events have, + // and, from that, detects the way it can convert deltas to pixel + // offsets afterwards. + // + // The reason we want to know the amount a wheel event will scroll + // is that it gives us a chance to update the display before the + // actual scrolling happens, reducing flickering. + + var wheelSamples = 0, wheelPixelsPerUnit = null; + // Fill in a browser-detected starting value on browsers where we + // know one. These don't have to be accurate -- the result of them + // being wrong would just be a slight flicker on the first wheel + // scroll (if it is large enough). + if (ie) wheelPixelsPerUnit = -.53; + else if (gecko) wheelPixelsPerUnit = 15; + else if (chrome) wheelPixelsPerUnit = -.7; + else if (safari) wheelPixelsPerUnit = -1/3; + + function onScrollWheel(cm, e) { + var dx = e.wheelDeltaX, dy = e.wheelDeltaY; + if (dx == null && e.detail && e.axis == e.HORIZONTAL_AXIS) dx = e.detail; + if (dy == null && e.detail && e.axis == e.VERTICAL_AXIS) dy = e.detail; + else if (dy == null) dy = e.wheelDelta; + + var display = cm.display, scroll = display.scroller; + // Quit if there's nothing to scroll here + if (!(dx && scroll.scrollWidth > scroll.clientWidth || + dy && scroll.scrollHeight > scroll.clientHeight)) return; + + // Webkit browsers on OS X abort momentum scrolls when the target + // of the scroll event is removed from the scrollable element. + // This hack (see related code in patchDisplay) makes sure the + // element is kept around. + if (dy && mac && webkit) { + outer: for (var cur = e.target, view = display.view; cur != scroll; cur = cur.parentNode) { + for (var i = 0; i < view.length; i++) { + if (view[i].node == cur) { + cm.display.currentWheelTarget = cur; + break outer; + } + } + } + } + + // On some browsers, horizontal scrolling will cause redraws to + // happen before the gutter has been realigned, causing it to + // wriggle around in a most unseemly way. When we have an + // estimated pixels/delta value, we just handle horizontal + // scrolling entirely here. It'll be slightly off from native, but + // better than glitching out. + if (dx && !gecko && !presto && wheelPixelsPerUnit != null) { + if (dy) + setScrollTop(cm, Math.max(0, Math.min(scroll.scrollTop + dy * wheelPixelsPerUnit, scroll.scrollHeight - scroll.clientHeight))); + setScrollLeft(cm, Math.max(0, Math.min(scroll.scrollLeft + dx * wheelPixelsPerUnit, scroll.scrollWidth - scroll.clientWidth))); + e_preventDefault(e); + display.wheelStartX = null; // Abort measurement, if in progress + return; + } + + // 'Project' the visible viewport to cover the area that is being + // scrolled into view (if we know enough to estimate it). + if (dy && wheelPixelsPerUnit != null) { + var pixels = dy * wheelPixelsPerUnit; + var top = cm.doc.scrollTop, bot = top + display.wrapper.clientHeight; + if (pixels < 0) top = Math.max(0, top + pixels - 50); + else bot = Math.min(cm.doc.height, bot + pixels + 50); + updateDisplay(cm, {top: top, bottom: bot}); + } + + if (wheelSamples < 20) { + if (display.wheelStartX == null) { + display.wheelStartX = scroll.scrollLeft; display.wheelStartY = scroll.scrollTop; + display.wheelDX = dx; display.wheelDY = dy; + setTimeout(function() { + if (display.wheelStartX == null) return; + var movedX = scroll.scrollLeft - display.wheelStartX; + var movedY = scroll.scrollTop - display.wheelStartY; + var sample = (movedY && display.wheelDY && movedY / display.wheelDY) || + (movedX && display.wheelDX && movedX / display.wheelDX); + display.wheelStartX = display.wheelStartY = null; + if (!sample) return; + wheelPixelsPerUnit = (wheelPixelsPerUnit * wheelSamples + sample) / (wheelSamples + 1); + ++wheelSamples; + }, 200); + } else { + display.wheelDX += dx; display.wheelDY += dy; + } + } + } + + // KEY EVENTS + + // Run a handler that was bound to a key. + function doHandleBinding(cm, bound, dropShift) { + if (typeof bound == "string") { + bound = commands[bound]; + if (!bound) return false; + } + // Ensure previous input has been read, so that the handler sees a + // consistent view of the document + if (cm.display.pollingFast && readInput(cm)) cm.display.pollingFast = false; + var prevShift = cm.display.shift, done = false; + try { + if (isReadOnly(cm)) cm.state.suppressEdits = true; + if (dropShift) cm.display.shift = false; + done = bound(cm) != Pass; + } finally { + cm.display.shift = prevShift; + cm.state.suppressEdits = false; + } + return done; + } + + // Collect the currently active keymaps. + function allKeyMaps(cm) { + var maps = cm.state.keyMaps.slice(0); + if (cm.options.extraKeys) maps.push(cm.options.extraKeys); + maps.push(cm.options.keyMap); + return maps; + } + + var maybeTransition; + // Handle a key from the keydown event. + function handleKeyBinding(cm, e) { + // Handle automatic keymap transitions + var startMap = getKeyMap(cm.options.keyMap), next = startMap.auto; + clearTimeout(maybeTransition); + if (next && !isModifierKey(e)) maybeTransition = setTimeout(function() { + if (getKeyMap(cm.options.keyMap) == startMap) { + cm.options.keyMap = (next.call ? next.call(null, cm) : next); + keyMapChanged(cm); + } + }, 50); + + var name = keyName(e, true), handled = false; + if (!name) return false; + var keymaps = allKeyMaps(cm); + + if (e.shiftKey) { + // First try to resolve full name (including 'Shift-'). Failing + // that, see if there is a cursor-motion command (starting with + // 'go') bound to the keyname without 'Shift-'. + handled = lookupKey("Shift-" + name, keymaps, function(b) {return doHandleBinding(cm, b, true);}) + || lookupKey(name, keymaps, function(b) { + if (typeof b == "string" ? /^go[A-Z]/.test(b) : b.motion) + return doHandleBinding(cm, b); + }); + } else { + handled = lookupKey(name, keymaps, function(b) { return doHandleBinding(cm, b); }); + } + + if (handled) { + e_preventDefault(e); + restartBlink(cm); + signalLater(cm, "keyHandled", cm, name, e); + } + return handled; + } + + // Handle a key from the keypress event + function handleCharBinding(cm, e, ch) { + var handled = lookupKey("'" + ch + "'", allKeyMaps(cm), + function(b) { return doHandleBinding(cm, b, true); }); + if (handled) { + e_preventDefault(e); + restartBlink(cm); + signalLater(cm, "keyHandled", cm, "'" + ch + "'", e); + } + return handled; + } + + var lastStoppedKey = null; + function onKeyDown(e) { + var cm = this; + ensureFocus(cm); + if (signalDOMEvent(cm, e)) return; + // IE does strange things with escape. + if (ie_upto10 && e.keyCode == 27) e.returnValue = false; + var code = e.keyCode; + cm.display.shift = code == 16 || e.shiftKey; + var handled = handleKeyBinding(cm, e); + if (presto) { + lastStoppedKey = handled ? code : null; + // Opera has no cut event... we try to at least catch the key combo + if (!handled && code == 88 && !hasCopyEvent && (mac ? e.metaKey : e.ctrlKey)) + cm.replaceSelection("", null, "cut"); + } + + // Turn mouse into crosshair when Alt is held on Mac. + if (code == 18 && !/\bCodeMirror-crosshair\b/.test(cm.display.lineDiv.className)) + showCrossHair(cm); + } + + function showCrossHair(cm) { + var lineDiv = cm.display.lineDiv; + addClass(lineDiv, "CodeMirror-crosshair"); + + function up(e) { + if (e.keyCode == 18 || !e.altKey) { + rmClass(lineDiv, "CodeMirror-crosshair"); + off(document, "keyup", up); + off(document, "mouseover", up); + } + } + on(document, "keyup", up); + on(document, "mouseover", up); + } + + function onKeyUp(e) { + if (signalDOMEvent(this, e)) return; + if (e.keyCode == 16) this.doc.sel.shift = false; + } + + function onKeyPress(e) { + var cm = this; + if (signalDOMEvent(cm, e)) return; + var keyCode = e.keyCode, charCode = e.charCode; + if (presto && keyCode == lastStoppedKey) {lastStoppedKey = null; e_preventDefault(e); return;} + if (((presto && (!e.which || e.which < 10)) || khtml) && handleKeyBinding(cm, e)) return; + var ch = String.fromCharCode(charCode == null ? keyCode : charCode); + if (handleCharBinding(cm, e, ch)) return; + if (ie && !ie_upto8) cm.display.inputHasSelection = null; + fastPoll(cm); + } + + // FOCUS/BLUR EVENTS + + function onFocus(cm) { + if (cm.options.readOnly == "nocursor") return; + if (!cm.state.focused) { + signal(cm, "focus", cm); + cm.state.focused = true; + addClass(cm.display.wrapper, "CodeMirror-focused"); + // The prevInput test prevents this from firing when a context + // menu is closed (since the resetInput would kill the + // select-all detection hack) + if (!cm.curOp && cm.display.selForContextMenu != cm.doc.sel) { + resetInput(cm); + if (webkit) setTimeout(bind(resetInput, cm, true), 0); // Issue #1730 + } + } + slowPoll(cm); + restartBlink(cm); + } + function onBlur(cm) { + if (cm.state.focused) { + signal(cm, "blur", cm); + cm.state.focused = false; + rmClass(cm.display.wrapper, "CodeMirror-focused"); + } + clearInterval(cm.display.blinker); + setTimeout(function() {if (!cm.state.focused) cm.display.shift = false;}, 150); + } + + // CONTEXT MENU HANDLING + + // To make the context menu work, we need to briefly unhide the + // textarea (making it as unobtrusive as possible) to let the + // right-click take effect on it. + function onContextMenu(cm, e) { + if (signalDOMEvent(cm, e, "contextmenu")) return; + var display = cm.display; + if (eventInWidget(display, e) || contextMenuInGutter(cm, e)) return; + + var pos = posFromMouse(cm, e), scrollPos = display.scroller.scrollTop; + if (!pos || presto) return; // Opera is difficult. + + // Reset the current text selection only if the click is done outside of the selection + // and 'resetSelectionOnContextMenu' option is true. + var reset = cm.options.resetSelectionOnContextMenu; + if (reset && cm.doc.sel.contains(pos) == -1) + operation(cm, setSelection)(cm.doc, simpleSelection(pos), sel_dontScroll); + + var oldCSS = display.input.style.cssText; + display.inputDiv.style.position = "absolute"; + display.input.style.cssText = "position: fixed; width: 30px; height: 30px; top: " + (e.clientY - 5) + + "px; left: " + (e.clientX - 5) + "px; z-index: 1000; background: " + + (ie ? "rgba(255, 255, 255, .05)" : "transparent") + + "; outline: none; border-width: 0; outline: none; overflow: hidden; opacity: .05; filter: alpha(opacity=5);"; + focusInput(cm); + resetInput(cm); + // Adds "Select all" to context menu in FF + if (!cm.somethingSelected()) display.input.value = display.prevInput = " "; + display.selForContextMenu = cm.doc.sel; + clearTimeout(display.detectingSelectAll); + + // Select-all will be greyed out if there's nothing to select, so + // this adds a zero-width space so that we can later check whether + // it got selected. + function prepareSelectAllHack() { + if (display.input.selectionStart != null) { + var selected = cm.somethingSelected(); + var extval = display.input.value = "\u200b" + (selected ? display.input.value : ""); + display.prevInput = selected ? "" : "\u200b"; + display.input.selectionStart = 1; display.input.selectionEnd = extval.length; + } + } + function rehide() { + display.inputDiv.style.position = "relative"; + display.input.style.cssText = oldCSS; + if (ie_upto8) display.scrollbarV.scrollTop = display.scroller.scrollTop = scrollPos; + slowPoll(cm); + + // Try to detect the user choosing select-all + if (display.input.selectionStart != null) { + if (!ie || ie_upto8) prepareSelectAllHack(); + var i = 0, poll = function() { + if (display.selForContextMenu == cm.doc.sel && display.input.selectionStart == 0) + operation(cm, commands.selectAll)(cm); + else if (i++ < 10) display.detectingSelectAll = setTimeout(poll, 500); + else resetInput(cm); + }; + display.detectingSelectAll = setTimeout(poll, 200); + } + } + + if (ie && !ie_upto8) prepareSelectAllHack(); + if (captureRightClick) { + e_stop(e); + var mouseup = function() { + off(window, "mouseup", mouseup); + setTimeout(rehide, 20); + }; + on(window, "mouseup", mouseup); + } else { + setTimeout(rehide, 50); + } + } + + function contextMenuInGutter(cm, e) { + if (!hasHandler(cm, "gutterContextMenu")) return false; + return gutterEvent(cm, e, "gutterContextMenu", false, signal); + } + + // UPDATING + + // Compute the position of the end of a change (its 'to' property + // refers to the pre-change end). + var changeEnd = CodeMirror.changeEnd = function(change) { + if (!change.text) return change.to; + return Pos(change.from.line + change.text.length - 1, + lst(change.text).length + (change.text.length == 1 ? change.from.ch : 0)); + }; + + // Adjust a position to refer to the post-change position of the + // same text, or the end of the change if the change covers it. + function adjustForChange(pos, change) { + if (cmp(pos, change.from) < 0) return pos; + if (cmp(pos, change.to) <= 0) return changeEnd(change); + + var line = pos.line + change.text.length - (change.to.line - change.from.line) - 1, ch = pos.ch; + if (pos.line == change.to.line) ch += changeEnd(change).ch - change.to.ch; + return Pos(line, ch); + } + + function computeSelAfterChange(doc, change) { + var out = []; + for (var i = 0; i < doc.sel.ranges.length; i++) { + var range = doc.sel.ranges[i]; + out.push(new Range(adjustForChange(range.anchor, change), + adjustForChange(range.head, change))); + } + return normalizeSelection(out, doc.sel.primIndex); + } + + function offsetPos(pos, old, nw) { + if (pos.line == old.line) + return Pos(nw.line, pos.ch - old.ch + nw.ch); + else + return Pos(nw.line + (pos.line - old.line), pos.ch); + } + + // Used by replaceSelections to allow moving the selection to the + // start or around the replaced test. Hint may be "start" or "around". + function computeReplacedSel(doc, changes, hint) { + var out = []; + var oldPrev = Pos(doc.first, 0), newPrev = oldPrev; + for (var i = 0; i < changes.length; i++) { + var change = changes[i]; + var from = offsetPos(change.from, oldPrev, newPrev); + var to = offsetPos(changeEnd(change), oldPrev, newPrev); + oldPrev = change.to; + newPrev = to; + if (hint == "around") { + var range = doc.sel.ranges[i], inv = cmp(range.head, range.anchor) < 0; + out[i] = new Range(inv ? to : from, inv ? from : to); + } else { + out[i] = new Range(from, from); + } + } + return new Selection(out, doc.sel.primIndex); + } + + // Allow "beforeChange" event handlers to influence a change + function filterChange(doc, change, update) { + var obj = { + canceled: false, + from: change.from, + to: change.to, + text: change.text, + origin: change.origin, + cancel: function() { this.canceled = true; } + }; + if (update) obj.update = function(from, to, text, origin) { + if (from) this.from = clipPos(doc, from); + if (to) this.to = clipPos(doc, to); + if (text) this.text = text; + if (origin !== undefined) this.origin = origin; + }; + signal(doc, "beforeChange", doc, obj); + if (doc.cm) signal(doc.cm, "beforeChange", doc.cm, obj); + + if (obj.canceled) return null; + return {from: obj.from, to: obj.to, text: obj.text, origin: obj.origin}; + } + + // Apply a change to a document, and add it to the document's + // history, and propagating it to all linked documents. + function makeChange(doc, change, ignoreReadOnly) { + if (doc.cm) { + if (!doc.cm.curOp) return operation(doc.cm, makeChange)(doc, change, ignoreReadOnly); + if (doc.cm.state.suppressEdits) return; + } + + if (hasHandler(doc, "beforeChange") || doc.cm && hasHandler(doc.cm, "beforeChange")) { + change = filterChange(doc, change, true); + if (!change) return; + } + + // Possibly split or suppress the update based on the presence + // of read-only spans in its range. + var split = sawReadOnlySpans && !ignoreReadOnly && removeReadOnlyRanges(doc, change.from, change.to); + if (split) { + for (var i = split.length - 1; i >= 0; --i) + makeChangeInner(doc, {from: split[i].from, to: split[i].to, text: i ? [""] : change.text}); + } else { + makeChangeInner(doc, change); + } + } + + function makeChangeInner(doc, change) { + if (change.text.length == 1 && change.text[0] == "" && cmp(change.from, change.to) == 0) return; + var selAfter = computeSelAfterChange(doc, change); + addChangeToHistory(doc, change, selAfter, doc.cm ? doc.cm.curOp.id : NaN); + + makeChangeSingleDoc(doc, change, selAfter, stretchSpansOverChange(doc, change)); + var rebased = []; + + linkedDocs(doc, function(doc, sharedHist) { + if (!sharedHist && indexOf(rebased, doc.history) == -1) { + rebaseHist(doc.history, change); + rebased.push(doc.history); + } + makeChangeSingleDoc(doc, change, null, stretchSpansOverChange(doc, change)); + }); + } + + // Revert a change stored in a document's history. + function makeChangeFromHistory(doc, type, allowSelectionOnly) { + if (doc.cm && doc.cm.state.suppressEdits) return; + + var hist = doc.history, event, selAfter = doc.sel; + var source = type == "undo" ? hist.done : hist.undone, dest = type == "undo" ? hist.undone : hist.done; + + // Verify that there is a useable event (so that ctrl-z won't + // needlessly clear selection events) + for (var i = 0; i < source.length; i++) { + event = source[i]; + if (allowSelectionOnly ? event.ranges && !event.equals(doc.sel) : !event.ranges) + break; + } + if (i == source.length) return; + hist.lastOrigin = hist.lastSelOrigin = null; + + for (;;) { + event = source.pop(); + if (event.ranges) { + pushSelectionToHistory(event, dest); + if (allowSelectionOnly && !event.equals(doc.sel)) { + setSelection(doc, event, {clearRedo: false}); + return; + } + selAfter = event; + } + else break; + } + + // Build up a reverse change object to add to the opposite history + // stack (redo when undoing, and vice versa). + var antiChanges = []; + pushSelectionToHistory(selAfter, dest); + dest.push({changes: antiChanges, generation: hist.generation}); + hist.generation = event.generation || ++hist.maxGeneration; + + var filter = hasHandler(doc, "beforeChange") || doc.cm && hasHandler(doc.cm, "beforeChange"); + + for (var i = event.changes.length - 1; i >= 0; --i) { + var change = event.changes[i]; + change.origin = type; + if (filter && !filterChange(doc, change, false)) { + source.length = 0; + return; + } + + antiChanges.push(historyChangeFromChange(doc, change)); + + var after = i ? computeSelAfterChange(doc, change, null) : lst(source); + makeChangeSingleDoc(doc, change, after, mergeOldSpans(doc, change)); + if (!i && doc.cm) doc.cm.scrollIntoView(change); + var rebased = []; + + // Propagate to the linked documents + linkedDocs(doc, function(doc, sharedHist) { + if (!sharedHist && indexOf(rebased, doc.history) == -1) { + rebaseHist(doc.history, change); + rebased.push(doc.history); + } + makeChangeSingleDoc(doc, change, null, mergeOldSpans(doc, change)); + }); + } + } + + // Sub-views need their line numbers shifted when text is added + // above or below them in the parent document. + function shiftDoc(doc, distance) { + if (distance == 0) return; + doc.first += distance; + doc.sel = new Selection(map(doc.sel.ranges, function(range) { + return new Range(Pos(range.anchor.line + distance, range.anchor.ch), + Pos(range.head.line + distance, range.head.ch)); + }), doc.sel.primIndex); + if (doc.cm) { + regChange(doc.cm, doc.first, doc.first - distance, distance); + for (var d = doc.cm.display, l = d.viewFrom; l < d.viewTo; l++) + regLineChange(doc.cm, l, "gutter"); + } + } + + // More lower-level change function, handling only a single document + // (not linked ones). + function makeChangeSingleDoc(doc, change, selAfter, spans) { + if (doc.cm && !doc.cm.curOp) + return operation(doc.cm, makeChangeSingleDoc)(doc, change, selAfter, spans); + + if (change.to.line < doc.first) { + shiftDoc(doc, change.text.length - 1 - (change.to.line - change.from.line)); + return; + } + if (change.from.line > doc.lastLine()) return; + + // Clip the change to the size of this doc + if (change.from.line < doc.first) { + var shift = change.text.length - 1 - (doc.first - change.from.line); + shiftDoc(doc, shift); + change = {from: Pos(doc.first, 0), to: Pos(change.to.line + shift, change.to.ch), + text: [lst(change.text)], origin: change.origin}; + } + var last = doc.lastLine(); + if (change.to.line > last) { + change = {from: change.from, to: Pos(last, getLine(doc, last).text.length), + text: [change.text[0]], origin: change.origin}; + } + + change.removed = getBetween(doc, change.from, change.to); + + if (!selAfter) selAfter = computeSelAfterChange(doc, change, null); + if (doc.cm) makeChangeSingleDocInEditor(doc.cm, change, spans); + else updateDoc(doc, change, spans); + setSelectionNoUndo(doc, selAfter, sel_dontScroll); + } + + // Handle the interaction of a change to a document with the editor + // that this document is part of. + function makeChangeSingleDocInEditor(cm, change, spans) { + var doc = cm.doc, display = cm.display, from = change.from, to = change.to; + + var recomputeMaxLength = false, checkWidthStart = from.line; + if (!cm.options.lineWrapping) { + checkWidthStart = lineNo(visualLine(getLine(doc, from.line))); + doc.iter(checkWidthStart, to.line + 1, function(line) { + if (line == display.maxLine) { + recomputeMaxLength = true; + return true; + } + }); + } + + if (doc.sel.contains(change.from, change.to) > -1) + signalCursorActivity(cm); + + updateDoc(doc, change, spans, estimateHeight(cm)); + + if (!cm.options.lineWrapping) { + doc.iter(checkWidthStart, from.line + change.text.length, function(line) { + var len = lineLength(line); + if (len > display.maxLineLength) { + display.maxLine = line; + display.maxLineLength = len; + display.maxLineChanged = true; + recomputeMaxLength = false; + } + }); + if (recomputeMaxLength) cm.curOp.updateMaxLine = true; + } + + // Adjust frontier, schedule worker + doc.frontier = Math.min(doc.frontier, from.line); + startWorker(cm, 400); + + var lendiff = change.text.length - (to.line - from.line) - 1; + // Remember that these lines changed, for updating the display + if (from.line == to.line && change.text.length == 1 && !isWholeLineUpdate(cm.doc, change)) + regLineChange(cm, from.line, "text"); + else + regChange(cm, from.line, to.line + 1, lendiff); + + var changesHandler = hasHandler(cm, "changes"), changeHandler = hasHandler(cm, "change"); + if (changeHandler || changesHandler) { + var obj = { + from: from, to: to, + text: change.text, + removed: change.removed, + origin: change.origin + }; + if (changeHandler) signalLater(cm, "change", cm, obj); + if (changesHandler) (cm.curOp.changeObjs || (cm.curOp.changeObjs = [])).push(obj); + } + cm.display.selForContextMenu = null; + } + + function replaceRange(doc, code, from, to, origin) { + if (!to) to = from; + if (cmp(to, from) < 0) { var tmp = to; to = from; from = tmp; } + if (typeof code == "string") code = splitLines(code); + makeChange(doc, {from: from, to: to, text: code, origin: origin}); + } + + // SCROLLING THINGS INTO VIEW + + // If an editor sits on the top or bottom of the window, partially + // scrolled out of view, this ensures that the cursor is visible. + function maybeScrollWindow(cm, coords) { + var display = cm.display, box = display.sizer.getBoundingClientRect(), doScroll = null; + if (coords.top + box.top < 0) doScroll = true; + else if (coords.bottom + box.top > (window.innerHeight || document.documentElement.clientHeight)) doScroll = false; + if (doScroll != null && !phantom) { + var scrollNode = elt("div", "\u200b", null, "position: absolute; top: " + + (coords.top - display.viewOffset - paddingTop(cm.display)) + "px; height: " + + (coords.bottom - coords.top + scrollerCutOff) + "px; left: " + + coords.left + "px; width: 2px;"); + cm.display.lineSpace.appendChild(scrollNode); + scrollNode.scrollIntoView(doScroll); + cm.display.lineSpace.removeChild(scrollNode); + } + } + + // Scroll a given position into view (immediately), verifying that + // it actually became visible (as line heights are accurately + // measured, the position of something may 'drift' during drawing). + function scrollPosIntoView(cm, pos, end, margin) { + if (margin == null) margin = 0; + for (;;) { + var changed = false, coords = cursorCoords(cm, pos); + var endCoords = !end || end == pos ? coords : cursorCoords(cm, end); + var scrollPos = calculateScrollPos(cm, Math.min(coords.left, endCoords.left), + Math.min(coords.top, endCoords.top) - margin, + Math.max(coords.left, endCoords.left), + Math.max(coords.bottom, endCoords.bottom) + margin); + var startTop = cm.doc.scrollTop, startLeft = cm.doc.scrollLeft; + if (scrollPos.scrollTop != null) { + setScrollTop(cm, scrollPos.scrollTop); + if (Math.abs(cm.doc.scrollTop - startTop) > 1) changed = true; + } + if (scrollPos.scrollLeft != null) { + setScrollLeft(cm, scrollPos.scrollLeft); + if (Math.abs(cm.doc.scrollLeft - startLeft) > 1) changed = true; + } + if (!changed) return coords; + } + } + + // Scroll a given set of coordinates into view (immediately). + function scrollIntoView(cm, x1, y1, x2, y2) { + var scrollPos = calculateScrollPos(cm, x1, y1, x2, y2); + if (scrollPos.scrollTop != null) setScrollTop(cm, scrollPos.scrollTop); + if (scrollPos.scrollLeft != null) setScrollLeft(cm, scrollPos.scrollLeft); + } + + // Calculate a new scroll position needed to scroll the given + // rectangle into view. Returns an object with scrollTop and + // scrollLeft properties. When these are undefined, the + // vertical/horizontal position does not need to be adjusted. + function calculateScrollPos(cm, x1, y1, x2, y2) { + var display = cm.display, snapMargin = textHeight(cm.display); + if (y1 < 0) y1 = 0; + var screentop = cm.curOp && cm.curOp.scrollTop != null ? cm.curOp.scrollTop : display.scroller.scrollTop; + var screen = display.scroller.clientHeight - scrollerCutOff, result = {}; + var docBottom = cm.doc.height + paddingVert(display); + var atTop = y1 < snapMargin, atBottom = y2 > docBottom - snapMargin; + if (y1 < screentop) { + result.scrollTop = atTop ? 0 : y1; + } else if (y2 > screentop + screen) { + var newTop = Math.min(y1, (atBottom ? docBottom : y2) - screen); + if (newTop != screentop) result.scrollTop = newTop; + } + + var screenleft = cm.curOp && cm.curOp.scrollLeft != null ? cm.curOp.scrollLeft : display.scroller.scrollLeft; + var screenw = display.scroller.clientWidth - scrollerCutOff; + x1 += display.gutters.offsetWidth; x2 += display.gutters.offsetWidth; + var gutterw = display.gutters.offsetWidth; + var atLeft = x1 < gutterw + 10; + if (x1 < screenleft + gutterw || atLeft) { + if (atLeft) x1 = 0; + result.scrollLeft = Math.max(0, x1 - 10 - gutterw); + } else if (x2 > screenw + screenleft - 3) { + result.scrollLeft = x2 + 10 - screenw; + } + return result; + } + + // Store a relative adjustment to the scroll position in the current + // operation (to be applied when the operation finishes). + function addToScrollPos(cm, left, top) { + if (left != null || top != null) resolveScrollToPos(cm); + if (left != null) + cm.curOp.scrollLeft = (cm.curOp.scrollLeft == null ? cm.doc.scrollLeft : cm.curOp.scrollLeft) + left; + if (top != null) + cm.curOp.scrollTop = (cm.curOp.scrollTop == null ? cm.doc.scrollTop : cm.curOp.scrollTop) + top; + } + + // Make sure that at the end of the operation the current cursor is + // shown. + function ensureCursorVisible(cm) { + resolveScrollToPos(cm); + var cur = cm.getCursor(), from = cur, to = cur; + if (!cm.options.lineWrapping) { + from = cur.ch ? Pos(cur.line, cur.ch - 1) : cur; + to = Pos(cur.line, cur.ch + 1); + } + cm.curOp.scrollToPos = {from: from, to: to, margin: cm.options.cursorScrollMargin, isCursor: true}; + } + + // When an operation has its scrollToPos property set, and another + // scroll action is applied before the end of the operation, this + // 'simulates' scrolling that position into view in a cheap way, so + // that the effect of intermediate scroll commands is not ignored. + function resolveScrollToPos(cm) { + var range = cm.curOp.scrollToPos; + if (range) { + cm.curOp.scrollToPos = null; + var from = estimateCoords(cm, range.from), to = estimateCoords(cm, range.to); + var sPos = calculateScrollPos(cm, Math.min(from.left, to.left), + Math.min(from.top, to.top) - range.margin, + Math.max(from.right, to.right), + Math.max(from.bottom, to.bottom) + range.margin); + cm.scrollTo(sPos.scrollLeft, sPos.scrollTop); + } + } + + // API UTILITIES + + // Indent the given line. The how parameter can be "smart", + // "add"/null, "subtract", or "prev". When aggressive is false + // (typically set to true for forced single-line indents), empty + // lines are not indented, and places where the mode returns Pass + // are left alone. + function indentLine(cm, n, how, aggressive) { + var doc = cm.doc, state; + if (how == null) how = "add"; + if (how == "smart") { + // Fall back to "prev" when the mode doesn't have an indentation + // method. + if (!cm.doc.mode.indent) how = "prev"; + else state = getStateBefore(cm, n); + } + + var tabSize = cm.options.tabSize; + var line = getLine(doc, n), curSpace = countColumn(line.text, null, tabSize); + if (line.stateAfter) line.stateAfter = null; + var curSpaceString = line.text.match(/^\s*/)[0], indentation; + if (!aggressive && !/\S/.test(line.text)) { + indentation = 0; + how = "not"; + } else if (how == "smart") { + indentation = cm.doc.mode.indent(state, line.text.slice(curSpaceString.length), line.text); + if (indentation == Pass) { + if (!aggressive) return; + how = "prev"; + } + } + if (how == "prev") { + if (n > doc.first) indentation = countColumn(getLine(doc, n-1).text, null, tabSize); + else indentation = 0; + } else if (how == "add") { + indentation = curSpace + cm.options.indentUnit; + } else if (how == "subtract") { + indentation = curSpace - cm.options.indentUnit; + } else if (typeof how == "number") { + indentation = curSpace + how; + } + indentation = Math.max(0, indentation); + + var indentString = "", pos = 0; + if (cm.options.indentWithTabs) + for (var i = Math.floor(indentation / tabSize); i; --i) {pos += tabSize; indentString += "\t";} + if (pos < indentation) indentString += spaceStr(indentation - pos); + + if (indentString != curSpaceString) { + replaceRange(cm.doc, indentString, Pos(n, 0), Pos(n, curSpaceString.length), "+input"); + } else { + // Ensure that, if the cursor was in the whitespace at the start + // of the line, it is moved to the end of that space. + for (var i = 0; i < doc.sel.ranges.length; i++) { + var range = doc.sel.ranges[i]; + if (range.head.line == n && range.head.ch < curSpaceString.length) { + var pos = Pos(n, curSpaceString.length); + replaceOneSelection(doc, i, new Range(pos, pos)); + break; + } + } + } + line.stateAfter = null; + } + + // Utility for applying a change to a line by handle or number, + // returning the number and optionally registering the line as + // changed. + function changeLine(cm, handle, changeType, op) { + var no = handle, line = handle, doc = cm.doc; + if (typeof handle == "number") line = getLine(doc, clipLine(doc, handle)); + else no = lineNo(handle); + if (no == null) return null; + if (op(line, no)) regLineChange(cm, no, changeType); + return line; + } + + // Helper for deleting text near the selection(s), used to implement + // backspace, delete, and similar functionality. + function deleteNearSelection(cm, compute) { + var ranges = cm.doc.sel.ranges, kill = []; + // Build up a set of ranges to kill first, merging overlapping + // ranges. + for (var i = 0; i < ranges.length; i++) { + var toKill = compute(ranges[i]); + while (kill.length && cmp(toKill.from, lst(kill).to) <= 0) { + var replaced = kill.pop(); + if (cmp(replaced.from, toKill.from) < 0) { + toKill.from = replaced.from; + break; + } + } + kill.push(toKill); + } + // Next, remove those actual ranges. + runInOp(cm, function() { + for (var i = kill.length - 1; i >= 0; i--) + replaceRange(cm.doc, "", kill[i].from, kill[i].to, "+delete"); + ensureCursorVisible(cm); + }); + } + + // Used for horizontal relative motion. Dir is -1 or 1 (left or + // right), unit can be "char", "column" (like char, but doesn't + // cross line boundaries), "word" (across next word), or "group" (to + // the start of next group of word or non-word-non-whitespace + // chars). The visually param controls whether, in right-to-left + // text, direction 1 means to move towards the next index in the + // string, or towards the character to the right of the current + // position. The resulting position will have a hitSide=true + // property if it reached the end of the document. + function findPosH(doc, pos, dir, unit, visually) { + var line = pos.line, ch = pos.ch, origDir = dir; + var lineObj = getLine(doc, line); + var possible = true; + function findNextLine() { + var l = line + dir; + if (l < doc.first || l >= doc.first + doc.size) return (possible = false); + line = l; + return lineObj = getLine(doc, l); + } + function moveOnce(boundToLine) { + var next = (visually ? moveVisually : moveLogically)(lineObj, ch, dir, true); + if (next == null) { + if (!boundToLine && findNextLine()) { + if (visually) ch = (dir < 0 ? lineRight : lineLeft)(lineObj); + else ch = dir < 0 ? lineObj.text.length : 0; + } else return (possible = false); + } else ch = next; + return true; + } + + if (unit == "char") moveOnce(); + else if (unit == "column") moveOnce(true); + else if (unit == "word" || unit == "group") { + var sawType = null, group = unit == "group"; + var helper = doc.cm && doc.cm.getHelper(pos, "wordChars"); + for (var first = true;; first = false) { + if (dir < 0 && !moveOnce(!first)) break; + var cur = lineObj.text.charAt(ch) || "\n"; + var type = isWordChar(cur, helper) ? "w" + : group && cur == "\n" ? "n" + : !group || /\s/.test(cur) ? null + : "p"; + if (group && !first && !type) type = "s"; + if (sawType && sawType != type) { + if (dir < 0) {dir = 1; moveOnce();} + break; + } + + if (type) sawType = type; + if (dir > 0 && !moveOnce(!first)) break; + } + } + var result = skipAtomic(doc, Pos(line, ch), origDir, true); + if (!possible) result.hitSide = true; + return result; + } + + // For relative vertical movement. Dir may be -1 or 1. Unit can be + // "page" or "line". The resulting position will have a hitSide=true + // property if it reached the end of the document. + function findPosV(cm, pos, dir, unit) { + var doc = cm.doc, x = pos.left, y; + if (unit == "page") { + var pageSize = Math.min(cm.display.wrapper.clientHeight, window.innerHeight || document.documentElement.clientHeight); + y = pos.top + dir * (pageSize - (dir < 0 ? 1.5 : .5) * textHeight(cm.display)); + } else if (unit == "line") { + y = dir > 0 ? pos.bottom + 3 : pos.top - 3; + } + for (;;) { + var target = coordsChar(cm, x, y); + if (!target.outside) break; + if (dir < 0 ? y <= 0 : y >= doc.height) { target.hitSide = true; break; } + y += dir * 5; + } + return target; + } + + // Find the word at the given position (as returned by coordsChar). + function findWordAt(cm, pos) { + var doc = cm.doc, line = getLine(doc, pos.line).text; + var start = pos.ch, end = pos.ch; + if (line) { + var helper = cm.getHelper(pos, "wordChars"); + if ((pos.xRel < 0 || end == line.length) && start) --start; else ++end; + var startChar = line.charAt(start); + var check = isWordChar(startChar, helper) + ? function(ch) { return isWordChar(ch, helper); } + : /\s/.test(startChar) ? function(ch) {return /\s/.test(ch);} + : function(ch) {return !/\s/.test(ch) && !isWordChar(ch);}; + while (start > 0 && check(line.charAt(start - 1))) --start; + while (end < line.length && check(line.charAt(end))) ++end; + } + return new Range(Pos(pos.line, start), Pos(pos.line, end)); + } + + // EDITOR METHODS + + // The publicly visible API. Note that methodOp(f) means + // 'wrap f in an operation, performed on its `this` parameter'. + + // This is not the complete set of editor methods. Most of the + // methods defined on the Doc type are also injected into + // CodeMirror.prototype, for backwards compatibility and + // convenience. + + CodeMirror.prototype = { + constructor: CodeMirror, + focus: function(){window.focus(); focusInput(this); fastPoll(this);}, + + setOption: function(option, value) { + var options = this.options, old = options[option]; + if (options[option] == value && option != "mode") return; + options[option] = value; + if (optionHandlers.hasOwnProperty(option)) + operation(this, optionHandlers[option])(this, value, old); + }, + + getOption: function(option) {return this.options[option];}, + getDoc: function() {return this.doc;}, + + addKeyMap: function(map, bottom) { + this.state.keyMaps[bottom ? "push" : "unshift"](map); + }, + removeKeyMap: function(map) { + var maps = this.state.keyMaps; + for (var i = 0; i < maps.length; ++i) + if (maps[i] == map || (typeof maps[i] != "string" && maps[i].name == map)) { + maps.splice(i, 1); + return true; + } + }, + + addOverlay: methodOp(function(spec, options) { + var mode = spec.token ? spec : CodeMirror.getMode(this.options, spec); + if (mode.startState) throw new Error("Overlays may not be stateful."); + this.state.overlays.push({mode: mode, modeSpec: spec, opaque: options && options.opaque}); + this.state.modeGen++; + regChange(this); + }), + removeOverlay: methodOp(function(spec) { + var overlays = this.state.overlays; + for (var i = 0; i < overlays.length; ++i) { + var cur = overlays[i].modeSpec; + if (cur == spec || typeof spec == "string" && cur.name == spec) { + overlays.splice(i, 1); + this.state.modeGen++; + regChange(this); + return; + } + } + }), + + indentLine: methodOp(function(n, dir, aggressive) { + if (typeof dir != "string" && typeof dir != "number") { + if (dir == null) dir = this.options.smartIndent ? "smart" : "prev"; + else dir = dir ? "add" : "subtract"; + } + if (isLine(this.doc, n)) indentLine(this, n, dir, aggressive); + }), + indentSelection: methodOp(function(how) { + var ranges = this.doc.sel.ranges, end = -1; + for (var i = 0; i < ranges.length; i++) { + var range = ranges[i]; + if (!range.empty()) { + var start = Math.max(end, range.from().line); + var to = range.to(); + end = Math.min(this.lastLine(), to.line - (to.ch ? 0 : 1)) + 1; + for (var j = start; j < end; ++j) + indentLine(this, j, how); + } else if (range.head.line > end) { + indentLine(this, range.head.line, how, true); + end = range.head.line; + if (i == this.doc.sel.primIndex) ensureCursorVisible(this); + } + } + }), + + // Fetch the parser token for a given character. Useful for hacks + // that want to inspect the mode state (say, for completion). + getTokenAt: function(pos, precise) { + var doc = this.doc; + pos = clipPos(doc, pos); + var state = getStateBefore(this, pos.line, precise), mode = this.doc.mode; + var line = getLine(doc, pos.line); + var stream = new StringStream(line.text, this.options.tabSize); + while (stream.pos < pos.ch && !stream.eol()) { + stream.start = stream.pos; + var style = readToken(mode, stream, state); + } + return {start: stream.start, + end: stream.pos, + string: stream.current(), + type: style || null, + state: state}; + }, + + getTokenTypeAt: function(pos) { + pos = clipPos(this.doc, pos); + var styles = getLineStyles(this, getLine(this.doc, pos.line)); + var before = 0, after = (styles.length - 1) / 2, ch = pos.ch; + var type; + if (ch == 0) type = styles[2]; + else for (;;) { + var mid = (before + after) >> 1; + if ((mid ? styles[mid * 2 - 1] : 0) >= ch) after = mid; + else if (styles[mid * 2 + 1] < ch) before = mid + 1; + else { type = styles[mid * 2 + 2]; break; } + } + var cut = type ? type.indexOf("cm-overlay ") : -1; + return cut < 0 ? type : cut == 0 ? null : type.slice(0, cut - 1); + }, + + getModeAt: function(pos) { + var mode = this.doc.mode; + if (!mode.innerMode) return mode; + return CodeMirror.innerMode(mode, this.getTokenAt(pos).state).mode; + }, + + getHelper: function(pos, type) { + return this.getHelpers(pos, type)[0]; + }, + + getHelpers: function(pos, type) { + var found = []; + if (!helpers.hasOwnProperty(type)) return helpers; + var help = helpers[type], mode = this.getModeAt(pos); + if (typeof mode[type] == "string") { + if (help[mode[type]]) found.push(help[mode[type]]); + } else if (mode[type]) { + for (var i = 0; i < mode[type].length; i++) { + var val = help[mode[type][i]]; + if (val) found.push(val); + } + } else if (mode.helperType && help[mode.helperType]) { + found.push(help[mode.helperType]); + } else if (help[mode.name]) { + found.push(help[mode.name]); + } + for (var i = 0; i < help._global.length; i++) { + var cur = help._global[i]; + if (cur.pred(mode, this) && indexOf(found, cur.val) == -1) + found.push(cur.val); + } + return found; + }, + + getStateAfter: function(line, precise) { + var doc = this.doc; + line = clipLine(doc, line == null ? doc.first + doc.size - 1: line); + return getStateBefore(this, line + 1, precise); + }, + + cursorCoords: function(start, mode) { + var pos, range = this.doc.sel.primary(); + if (start == null) pos = range.head; + else if (typeof start == "object") pos = clipPos(this.doc, start); + else pos = start ? range.from() : range.to(); + return cursorCoords(this, pos, mode || "page"); + }, + + charCoords: function(pos, mode) { + return charCoords(this, clipPos(this.doc, pos), mode || "page"); + }, + + coordsChar: function(coords, mode) { + coords = fromCoordSystem(this, coords, mode || "page"); + return coordsChar(this, coords.left, coords.top); + }, + + lineAtHeight: function(height, mode) { + height = fromCoordSystem(this, {top: height, left: 0}, mode || "page").top; + return lineAtHeight(this.doc, height + this.display.viewOffset); + }, + heightAtLine: function(line, mode) { + var end = false, last = this.doc.first + this.doc.size - 1; + if (line < this.doc.first) line = this.doc.first; + else if (line > last) { line = last; end = true; } + var lineObj = getLine(this.doc, line); + return intoCoordSystem(this, lineObj, {top: 0, left: 0}, mode || "page").top + + (end ? this.doc.height - heightAtLine(lineObj) : 0); + }, + + defaultTextHeight: function() { return textHeight(this.display); }, + defaultCharWidth: function() { return charWidth(this.display); }, + + setGutterMarker: methodOp(function(line, gutterID, value) { + return changeLine(this, line, "gutter", function(line) { + var markers = line.gutterMarkers || (line.gutterMarkers = {}); + markers[gutterID] = value; + if (!value && isEmpty(markers)) line.gutterMarkers = null; + return true; + }); + }), + + clearGutter: methodOp(function(gutterID) { + var cm = this, doc = cm.doc, i = doc.first; + doc.iter(function(line) { + if (line.gutterMarkers && line.gutterMarkers[gutterID]) { + line.gutterMarkers[gutterID] = null; + regLineChange(cm, i, "gutter"); + if (isEmpty(line.gutterMarkers)) line.gutterMarkers = null; + } + ++i; + }); + }), + + addLineClass: methodOp(function(handle, where, cls) { + return changeLine(this, handle, "class", function(line) { + var prop = where == "text" ? "textClass" : where == "background" ? "bgClass" : "wrapClass"; + if (!line[prop]) line[prop] = cls; + else if (new RegExp("(?:^|\\s)" + cls + "(?:$|\\s)").test(line[prop])) return false; + else line[prop] += " " + cls; + return true; + }); + }), + + removeLineClass: methodOp(function(handle, where, cls) { + return changeLine(this, handle, "class", function(line) { + var prop = where == "text" ? "textClass" : where == "background" ? "bgClass" : "wrapClass"; + var cur = line[prop]; + if (!cur) return false; + else if (cls == null) line[prop] = null; + else { + var found = cur.match(new RegExp("(?:^|\\s+)" + cls + "(?:$|\\s+)")); + if (!found) return false; + var end = found.index + found[0].length; + line[prop] = cur.slice(0, found.index) + (!found.index || end == cur.length ? "" : " ") + cur.slice(end) || null; + } + return true; + }); + }), + + addLineWidget: methodOp(function(handle, node, options) { + return addLineWidget(this, handle, node, options); + }), + + removeLineWidget: function(widget) { widget.clear(); }, + + lineInfo: function(line) { + if (typeof line == "number") { + if (!isLine(this.doc, line)) return null; + var n = line; + line = getLine(this.doc, line); + if (!line) return null; + } else { + var n = lineNo(line); + if (n == null) return null; + } + return {line: n, handle: line, text: line.text, gutterMarkers: line.gutterMarkers, + textClass: line.textClass, bgClass: line.bgClass, wrapClass: line.wrapClass, + widgets: line.widgets}; + }, + + getViewport: function() { return {from: this.display.viewFrom, to: this.display.viewTo};}, + + addWidget: function(pos, node, scroll, vert, horiz) { + var display = this.display; + pos = cursorCoords(this, clipPos(this.doc, pos)); + var top = pos.bottom, left = pos.left; + node.style.position = "absolute"; + display.sizer.appendChild(node); + if (vert == "over") { + top = pos.top; + } else if (vert == "above" || vert == "near") { + var vspace = Math.max(display.wrapper.clientHeight, this.doc.height), + hspace = Math.max(display.sizer.clientWidth, display.lineSpace.clientWidth); + // Default to positioning above (if specified and possible); otherwise default to positioning below + if ((vert == 'above' || pos.bottom + node.offsetHeight > vspace) && pos.top > node.offsetHeight) + top = pos.top - node.offsetHeight; + else if (pos.bottom + node.offsetHeight <= vspace) + top = pos.bottom; + if (left + node.offsetWidth > hspace) + left = hspace - node.offsetWidth; + } + node.style.top = top + "px"; + node.style.left = node.style.right = ""; + if (horiz == "right") { + left = display.sizer.clientWidth - node.offsetWidth; + node.style.right = "0px"; + } else { + if (horiz == "left") left = 0; + else if (horiz == "middle") left = (display.sizer.clientWidth - node.offsetWidth) / 2; + node.style.left = left + "px"; + } + if (scroll) + scrollIntoView(this, left, top, left + node.offsetWidth, top + node.offsetHeight); + }, + + triggerOnKeyDown: methodOp(onKeyDown), + triggerOnKeyPress: methodOp(onKeyPress), + triggerOnKeyUp: methodOp(onKeyUp), + + execCommand: function(cmd) { + if (commands.hasOwnProperty(cmd)) + return commands[cmd](this); + }, + + findPosH: function(from, amount, unit, visually) { + var dir = 1; + if (amount < 0) { dir = -1; amount = -amount; } + for (var i = 0, cur = clipPos(this.doc, from); i < amount; ++i) { + cur = findPosH(this.doc, cur, dir, unit, visually); + if (cur.hitSide) break; + } + return cur; + }, + + moveH: methodOp(function(dir, unit) { + var cm = this; + cm.extendSelectionsBy(function(range) { + if (cm.display.shift || cm.doc.extend || range.empty()) + return findPosH(cm.doc, range.head, dir, unit, cm.options.rtlMoveVisually); + else + return dir < 0 ? range.from() : range.to(); + }, sel_move); + }), + + deleteH: methodOp(function(dir, unit) { + var sel = this.doc.sel, doc = this.doc; + if (sel.somethingSelected()) + doc.replaceSelection("", null, "+delete"); + else + deleteNearSelection(this, function(range) { + var other = findPosH(doc, range.head, dir, unit, false); + return dir < 0 ? {from: other, to: range.head} : {from: range.head, to: other}; + }); + }), + + findPosV: function(from, amount, unit, goalColumn) { + var dir = 1, x = goalColumn; + if (amount < 0) { dir = -1; amount = -amount; } + for (var i = 0, cur = clipPos(this.doc, from); i < amount; ++i) { + var coords = cursorCoords(this, cur, "div"); + if (x == null) x = coords.left; + else coords.left = x; + cur = findPosV(this, coords, dir, unit); + if (cur.hitSide) break; + } + return cur; + }, + + moveV: methodOp(function(dir, unit) { + var cm = this, doc = this.doc, goals = []; + var collapse = !cm.display.shift && !doc.extend && doc.sel.somethingSelected(); + doc.extendSelectionsBy(function(range) { + if (collapse) + return dir < 0 ? range.from() : range.to(); + var headPos = cursorCoords(cm, range.head, "div"); + if (range.goalColumn != null) headPos.left = range.goalColumn; + goals.push(headPos.left); + var pos = findPosV(cm, headPos, dir, unit); + if (unit == "page" && range == doc.sel.primary()) + addToScrollPos(cm, null, charCoords(cm, pos, "div").top - headPos.top); + return pos; + }, sel_move); + if (goals.length) for (var i = 0; i < doc.sel.ranges.length; i++) + doc.sel.ranges[i].goalColumn = goals[i]; + }), + + toggleOverwrite: function(value) { + if (value != null && value == this.state.overwrite) return; + if (this.state.overwrite = !this.state.overwrite) + addClass(this.display.cursorDiv, "CodeMirror-overwrite"); + else + rmClass(this.display.cursorDiv, "CodeMirror-overwrite"); + + signal(this, "overwriteToggle", this, this.state.overwrite); + }, + hasFocus: function() { return activeElt() == this.display.input; }, + + scrollTo: methodOp(function(x, y) { + if (x != null || y != null) resolveScrollToPos(this); + if (x != null) this.curOp.scrollLeft = x; + if (y != null) this.curOp.scrollTop = y; + }), + getScrollInfo: function() { + var scroller = this.display.scroller, co = scrollerCutOff; + return {left: scroller.scrollLeft, top: scroller.scrollTop, + height: scroller.scrollHeight - co, width: scroller.scrollWidth - co, + clientHeight: scroller.clientHeight - co, clientWidth: scroller.clientWidth - co}; + }, + + scrollIntoView: methodOp(function(range, margin) { + if (range == null) { + range = {from: this.doc.sel.primary().head, to: null}; + if (margin == null) margin = this.options.cursorScrollMargin; + } else if (typeof range == "number") { + range = {from: Pos(range, 0), to: null}; + } else if (range.from == null) { + range = {from: range, to: null}; + } + if (!range.to) range.to = range.from; + range.margin = margin || 0; + + if (range.from.line != null) { + resolveScrollToPos(this); + this.curOp.scrollToPos = range; + } else { + var sPos = calculateScrollPos(this, Math.min(range.from.left, range.to.left), + Math.min(range.from.top, range.to.top) - range.margin, + Math.max(range.from.right, range.to.right), + Math.max(range.from.bottom, range.to.bottom) + range.margin); + this.scrollTo(sPos.scrollLeft, sPos.scrollTop); + } + }), + + setSize: methodOp(function(width, height) { + function interpret(val) { + return typeof val == "number" || /^\d+$/.test(String(val)) ? val + "px" : val; + } + if (width != null) this.display.wrapper.style.width = interpret(width); + if (height != null) this.display.wrapper.style.height = interpret(height); + if (this.options.lineWrapping) clearLineMeasurementCache(this); + this.curOp.forceUpdate = true; + signal(this, "refresh", this); + }), + + operation: function(f){return runInOp(this, f);}, + + refresh: methodOp(function() { + var oldHeight = this.display.cachedTextHeight; + regChange(this); + this.curOp.forceUpdate = true; + clearCaches(this); + this.scrollTo(this.doc.scrollLeft, this.doc.scrollTop); + updateGutterSpace(this); + if (oldHeight == null || Math.abs(oldHeight - textHeight(this.display)) > .5) + estimateLineHeights(this); + signal(this, "refresh", this); + }), + + swapDoc: methodOp(function(doc) { + var old = this.doc; + old.cm = null; + attachDoc(this, doc); + clearCaches(this); + resetInput(this); + this.scrollTo(doc.scrollLeft, doc.scrollTop); + signalLater(this, "swapDoc", this, old); + return old; + }), + + getInputField: function(){return this.display.input;}, + getWrapperElement: function(){return this.display.wrapper;}, + getScrollerElement: function(){return this.display.scroller;}, + getGutterElement: function(){return this.display.gutters;} + }; + eventMixin(CodeMirror); + + // OPTION DEFAULTS + + // The default configuration options. + var defaults = CodeMirror.defaults = {}; + // Functions to run when options are changed. + var optionHandlers = CodeMirror.optionHandlers = {}; + + function option(name, deflt, handle, notOnInit) { + CodeMirror.defaults[name] = deflt; + if (handle) optionHandlers[name] = + notOnInit ? function(cm, val, old) {if (old != Init) handle(cm, val, old);} : handle; + } + + // Passed to option handlers when there is no old value. + var Init = CodeMirror.Init = {toString: function(){return "CodeMirror.Init";}}; + + // These two are, on init, called from the constructor because they + // have to be initialized before the editor can start at all. + option("value", "", function(cm, val) { + cm.setValue(val); + }, true); + option("mode", null, function(cm, val) { + cm.doc.modeOption = val; + loadMode(cm); + }, true); + + option("indentUnit", 2, loadMode, true); + option("indentWithTabs", false); + option("smartIndent", true); + option("tabSize", 4, function(cm) { + resetModeState(cm); + clearCaches(cm); + regChange(cm); + }, true); + option("specialChars", /[\t\u0000-\u0019\u00ad\u200b\u2028\u2029\ufeff]/g, function(cm, val) { + cm.options.specialChars = new RegExp(val.source + (val.test("\t") ? "" : "|\t"), "g"); + cm.refresh(); + }, true); + option("specialCharPlaceholder", defaultSpecialCharPlaceholder, function(cm) {cm.refresh();}, true); + option("electricChars", true); + option("rtlMoveVisually", !windows); + option("wholeLineUpdateBefore", true); + + option("theme", "default", function(cm) { + themeChanged(cm); + guttersChanged(cm); + }, true); + option("keyMap", "default", keyMapChanged); + option("extraKeys", null); + + option("lineWrapping", false, wrappingChanged, true); + option("gutters", [], function(cm) { + setGuttersForLineNumbers(cm.options); + guttersChanged(cm); + }, true); + option("fixedGutter", true, function(cm, val) { + cm.display.gutters.style.left = val ? compensateForHScroll(cm.display) + "px" : "0"; + cm.refresh(); + }, true); + option("coverGutterNextToScrollbar", false, updateScrollbars, true); + option("lineNumbers", false, function(cm) { + setGuttersForLineNumbers(cm.options); + guttersChanged(cm); + }, true); + option("firstLineNumber", 1, guttersChanged, true); + option("lineNumberFormatter", function(integer) {return integer;}, guttersChanged, true); + option("showCursorWhenSelecting", false, updateSelection, true); + + option("resetSelectionOnContextMenu", true); + + option("readOnly", false, function(cm, val) { + if (val == "nocursor") { + onBlur(cm); + cm.display.input.blur(); + cm.display.disabled = true; + } else { + cm.display.disabled = false; + if (!val) resetInput(cm); + } + }); + option("disableInput", false, function(cm, val) {if (!val) resetInput(cm);}, true); + option("dragDrop", true); + + option("cursorBlinkRate", 530); + option("cursorScrollMargin", 0); + option("cursorHeight", 1); + option("workTime", 100); + option("workDelay", 100); + option("flattenSpans", true, resetModeState, true); + option("addModeClass", false, resetModeState, true); + option("pollInterval", 100); + option("undoDepth", 200, function(cm, val){cm.doc.history.undoDepth = val;}); + option("historyEventDelay", 1250); + option("viewportMargin", 10, function(cm){cm.refresh();}, true); + option("maxHighlightLength", 10000, resetModeState, true); + option("moveInputWithCursor", true, function(cm, val) { + if (!val) cm.display.inputDiv.style.top = cm.display.inputDiv.style.left = 0; + }); + + option("tabindex", null, function(cm, val) { + cm.display.input.tabIndex = val || ""; + }); + option("autofocus", null); + + // MODE DEFINITION AND QUERYING + + // Known modes, by name and by MIME + var modes = CodeMirror.modes = {}, mimeModes = CodeMirror.mimeModes = {}; + + // Extra arguments are stored as the mode's dependencies, which is + // used by (legacy) mechanisms like loadmode.js to automatically + // load a mode. (Preferred mechanism is the require/define calls.) + CodeMirror.defineMode = function(name, mode) { + if (!CodeMirror.defaults.mode && name != "null") CodeMirror.defaults.mode = name; + if (arguments.length > 2) { + mode.dependencies = []; + for (var i = 2; i < arguments.length; ++i) mode.dependencies.push(arguments[i]); + } + modes[name] = mode; + }; + + CodeMirror.defineMIME = function(mime, spec) { + mimeModes[mime] = spec; + }; + + // Given a MIME type, a {name, ...options} config object, or a name + // string, return a mode config object. + CodeMirror.resolveMode = function(spec) { + if (typeof spec == "string" && mimeModes.hasOwnProperty(spec)) { + spec = mimeModes[spec]; + } else if (spec && typeof spec.name == "string" && mimeModes.hasOwnProperty(spec.name)) { + var found = mimeModes[spec.name]; + if (typeof found == "string") found = {name: found}; + spec = createObj(found, spec); + spec.name = found.name; + } else if (typeof spec == "string" && /^[\w\-]+\/[\w\-]+\+xml$/.test(spec)) { + return CodeMirror.resolveMode("application/xml"); + } + if (typeof spec == "string") return {name: spec}; + else return spec || {name: "null"}; + }; + + // Given a mode spec (anything that resolveMode accepts), find and + // initialize an actual mode object. + CodeMirror.getMode = function(options, spec) { + var spec = CodeMirror.resolveMode(spec); + var mfactory = modes[spec.name]; + if (!mfactory) return CodeMirror.getMode(options, "text/plain"); + var modeObj = mfactory(options, spec); + if (modeExtensions.hasOwnProperty(spec.name)) { + var exts = modeExtensions[spec.name]; + for (var prop in exts) { + if (!exts.hasOwnProperty(prop)) continue; + if (modeObj.hasOwnProperty(prop)) modeObj["_" + prop] = modeObj[prop]; + modeObj[prop] = exts[prop]; + } + } + modeObj.name = spec.name; + if (spec.helperType) modeObj.helperType = spec.helperType; + if (spec.modeProps) for (var prop in spec.modeProps) + modeObj[prop] = spec.modeProps[prop]; + + return modeObj; + }; + + // Minimal default mode. + CodeMirror.defineMode("null", function() { + return {token: function(stream) {stream.skipToEnd();}}; + }); + CodeMirror.defineMIME("text/plain", "null"); + + // This can be used to attach properties to mode objects from + // outside the actual mode definition. + var modeExtensions = CodeMirror.modeExtensions = {}; + CodeMirror.extendMode = function(mode, properties) { + var exts = modeExtensions.hasOwnProperty(mode) ? modeExtensions[mode] : (modeExtensions[mode] = {}); + copyObj(properties, exts); + }; + + // EXTENSIONS + + CodeMirror.defineExtension = function(name, func) { + CodeMirror.prototype[name] = func; + }; + CodeMirror.defineDocExtension = function(name, func) { + Doc.prototype[name] = func; + }; + CodeMirror.defineOption = option; + + var initHooks = []; + CodeMirror.defineInitHook = function(f) {initHooks.push(f);}; + + var helpers = CodeMirror.helpers = {}; + CodeMirror.registerHelper = function(type, name, value) { + if (!helpers.hasOwnProperty(type)) helpers[type] = CodeMirror[type] = {_global: []}; + helpers[type][name] = value; + }; + CodeMirror.registerGlobalHelper = function(type, name, predicate, value) { + CodeMirror.registerHelper(type, name, value); + helpers[type]._global.push({pred: predicate, val: value}); + }; + + // MODE STATE HANDLING + + // Utility functions for working with state. Exported because nested + // modes need to do this for their inner modes. + + var copyState = CodeMirror.copyState = function(mode, state) { + if (state === true) return state; + if (mode.copyState) return mode.copyState(state); + var nstate = {}; + for (var n in state) { + var val = state[n]; + if (val instanceof Array) val = val.concat([]); + nstate[n] = val; + } + return nstate; + }; + + var startState = CodeMirror.startState = function(mode, a1, a2) { + return mode.startState ? mode.startState(a1, a2) : true; + }; + + // Given a mode and a state (for that mode), find the inner mode and + // state at the position that the state refers to. + CodeMirror.innerMode = function(mode, state) { + while (mode.innerMode) { + var info = mode.innerMode(state); + if (!info || info.mode == mode) break; + state = info.state; + mode = info.mode; + } + return info || {mode: mode, state: state}; + }; + + // STANDARD COMMANDS + + // Commands are parameter-less actions that can be performed on an + // editor, mostly used for keybindings. + var commands = CodeMirror.commands = { + selectAll: function(cm) {cm.setSelection(Pos(cm.firstLine(), 0), Pos(cm.lastLine()), sel_dontScroll);}, + singleSelection: function(cm) { + cm.setSelection(cm.getCursor("anchor"), cm.getCursor("head"), sel_dontScroll); + }, + killLine: function(cm) { + deleteNearSelection(cm, function(range) { + if (range.empty()) { + var len = getLine(cm.doc, range.head.line).text.length; + if (range.head.ch == len && range.head.line < cm.lastLine()) + return {from: range.head, to: Pos(range.head.line + 1, 0)}; + else + return {from: range.head, to: Pos(range.head.line, len)}; + } else { + return {from: range.from(), to: range.to()}; + } + }); + }, + deleteLine: function(cm) { + deleteNearSelection(cm, function(range) { + return {from: Pos(range.from().line, 0), + to: clipPos(cm.doc, Pos(range.to().line + 1, 0))}; + }); + }, + delLineLeft: function(cm) { + deleteNearSelection(cm, function(range) { + return {from: Pos(range.from().line, 0), to: range.from()}; + }); + }, + undo: function(cm) {cm.undo();}, + redo: function(cm) {cm.redo();}, + undoSelection: function(cm) {cm.undoSelection();}, + redoSelection: function(cm) {cm.redoSelection();}, + goDocStart: function(cm) {cm.extendSelection(Pos(cm.firstLine(), 0));}, + goDocEnd: function(cm) {cm.extendSelection(Pos(cm.lastLine()));}, + goLineStart: function(cm) { + cm.extendSelectionsBy(function(range) { return lineStart(cm, range.head.line); }, sel_move); + }, + goLineStartSmart: function(cm) { + cm.extendSelectionsBy(function(range) { + var start = lineStart(cm, range.head.line); + var line = cm.getLineHandle(start.line); + var order = getOrder(line); + if (!order || order[0].level == 0) { + var firstNonWS = Math.max(0, line.text.search(/\S/)); + var inWS = range.head.line == start.line && range.head.ch <= firstNonWS && range.head.ch; + return Pos(start.line, inWS ? 0 : firstNonWS); + } + return start; + }, sel_move); + }, + goLineEnd: function(cm) { + cm.extendSelectionsBy(function(range) { return lineEnd(cm, range.head.line); }, sel_move); + }, + goLineRight: function(cm) { + cm.extendSelectionsBy(function(range) { + var top = cm.charCoords(range.head, "div").top + 5; + return cm.coordsChar({left: cm.display.lineDiv.offsetWidth + 100, top: top}, "div"); + }, sel_move); + }, + goLineLeft: function(cm) { + cm.extendSelectionsBy(function(range) { + var top = cm.charCoords(range.head, "div").top + 5; + return cm.coordsChar({left: 0, top: top}, "div"); + }, sel_move); + }, + goLineUp: function(cm) {cm.moveV(-1, "line");}, + goLineDown: function(cm) {cm.moveV(1, "line");}, + goPageUp: function(cm) {cm.moveV(-1, "page");}, + goPageDown: function(cm) {cm.moveV(1, "page");}, + goCharLeft: function(cm) {cm.moveH(-1, "char");}, + goCharRight: function(cm) {cm.moveH(1, "char");}, + goColumnLeft: function(cm) {cm.moveH(-1, "column");}, + goColumnRight: function(cm) {cm.moveH(1, "column");}, + goWordLeft: function(cm) {cm.moveH(-1, "word");}, + goGroupRight: function(cm) {cm.moveH(1, "group");}, + goGroupLeft: function(cm) {cm.moveH(-1, "group");}, + goWordRight: function(cm) {cm.moveH(1, "word");}, + delCharBefore: function(cm) {cm.deleteH(-1, "char");}, + delCharAfter: function(cm) {cm.deleteH(1, "char");}, + delWordBefore: function(cm) {cm.deleteH(-1, "word");}, + delWordAfter: function(cm) {cm.deleteH(1, "word");}, + delGroupBefore: function(cm) {cm.deleteH(-1, "group");}, + delGroupAfter: function(cm) {cm.deleteH(1, "group");}, + indentAuto: function(cm) {cm.indentSelection("smart");}, + indentMore: function(cm) {cm.indentSelection("add");}, + indentLess: function(cm) {cm.indentSelection("subtract");}, + insertTab: function(cm) {cm.replaceSelection("\t");}, + insertSoftTab: function(cm) { + var spaces = [], ranges = cm.listSelections(), tabSize = cm.options.tabSize; + for (var i = 0; i < ranges.length; i++) { + var pos = ranges[i].from(); + var col = countColumn(cm.getLine(pos.line), pos.ch, tabSize); + spaces.push(new Array(tabSize - col % tabSize + 1).join(" ")); + } + cm.replaceSelections(spaces); + }, + defaultTab: function(cm) { + if (cm.somethingSelected()) cm.indentSelection("add"); + else cm.execCommand("insertTab"); + }, + transposeChars: function(cm) { + runInOp(cm, function() { + var ranges = cm.listSelections(), newSel = []; + for (var i = 0; i < ranges.length; i++) { + var cur = ranges[i].head, line = getLine(cm.doc, cur.line).text; + if (line) { + if (cur.ch == line.length) cur = new Pos(cur.line, cur.ch - 1); + if (cur.ch > 0) { + cur = new Pos(cur.line, cur.ch + 1); + cm.replaceRange(line.charAt(cur.ch - 1) + line.charAt(cur.ch - 2), + Pos(cur.line, cur.ch - 2), cur, "+transpose"); + } else if (cur.line > cm.doc.first) { + var prev = getLine(cm.doc, cur.line - 1).text; + if (prev) + cm.replaceRange(line.charAt(0) + "\n" + prev.charAt(prev.length - 1), + Pos(cur.line - 1, prev.length - 1), Pos(cur.line, 1), "+transpose"); + } + } + newSel.push(new Range(cur, cur)); + } + cm.setSelections(newSel); + }); + }, + newlineAndIndent: function(cm) { + runInOp(cm, function() { + var len = cm.listSelections().length; + for (var i = 0; i < len; i++) { + var range = cm.listSelections()[i]; + cm.replaceRange("\n", range.anchor, range.head, "+input"); + cm.indentLine(range.from().line + 1, null, true); + ensureCursorVisible(cm); + } + }); + }, + toggleOverwrite: function(cm) {cm.toggleOverwrite();} + }; + + // STANDARD KEYMAPS + + var keyMap = CodeMirror.keyMap = {}; + keyMap.basic = { + "Left": "goCharLeft", "Right": "goCharRight", "Up": "goLineUp", "Down": "goLineDown", + "End": "goLineEnd", "Home": "goLineStartSmart", "PageUp": "goPageUp", "PageDown": "goPageDown", + "Delete": "delCharAfter", "Backspace": "delCharBefore", "Shift-Backspace": "delCharBefore", + "Tab": "defaultTab", "Shift-Tab": "indentAuto", + "Enter": "newlineAndIndent", "Insert": "toggleOverwrite", + "Esc": "singleSelection" + }; + // Note that the save and find-related commands aren't defined by + // default. User code or addons can define them. Unknown commands + // are simply ignored. + keyMap.pcDefault = { + "Ctrl-A": "selectAll", "Ctrl-D": "deleteLine", "Ctrl-Z": "undo", "Shift-Ctrl-Z": "redo", "Ctrl-Y": "redo", + "Ctrl-Home": "goDocStart", "Ctrl-Up": "goDocStart", "Ctrl-End": "goDocEnd", "Ctrl-Down": "goDocEnd", + "Ctrl-Left": "goGroupLeft", "Ctrl-Right": "goGroupRight", "Alt-Left": "goLineStart", "Alt-Right": "goLineEnd", + "Ctrl-Backspace": "delGroupBefore", "Ctrl-Delete": "delGroupAfter", "Ctrl-S": "save", "Ctrl-F": "find", + "Ctrl-G": "findNext", "Shift-Ctrl-G": "findPrev", "Shift-Ctrl-F": "replace", "Shift-Ctrl-R": "replaceAll", + "Ctrl-[": "indentLess", "Ctrl-]": "indentMore", + "Ctrl-U": "undoSelection", "Shift-Ctrl-U": "redoSelection", "Alt-U": "redoSelection", + fallthrough: "basic" + }; + keyMap.macDefault = { + "Cmd-A": "selectAll", "Cmd-D": "deleteLine", "Cmd-Z": "undo", "Shift-Cmd-Z": "redo", "Cmd-Y": "redo", + "Cmd-Up": "goDocStart", "Cmd-End": "goDocEnd", "Cmd-Down": "goDocEnd", "Alt-Left": "goGroupLeft", + "Alt-Right": "goGroupRight", "Cmd-Left": "goLineStart", "Cmd-Right": "goLineEnd", "Alt-Backspace": "delGroupBefore", + "Ctrl-Alt-Backspace": "delGroupAfter", "Alt-Delete": "delGroupAfter", "Cmd-S": "save", "Cmd-F": "find", + "Cmd-G": "findNext", "Shift-Cmd-G": "findPrev", "Cmd-Alt-F": "replace", "Shift-Cmd-Alt-F": "replaceAll", + "Cmd-[": "indentLess", "Cmd-]": "indentMore", "Cmd-Backspace": "delLineLeft", + "Cmd-U": "undoSelection", "Shift-Cmd-U": "redoSelection", + fallthrough: ["basic", "emacsy"] + }; + // Very basic readline/emacs-style bindings, which are standard on Mac. + keyMap.emacsy = { + "Ctrl-F": "goCharRight", "Ctrl-B": "goCharLeft", "Ctrl-P": "goLineUp", "Ctrl-N": "goLineDown", + "Alt-F": "goWordRight", "Alt-B": "goWordLeft", "Ctrl-A": "goLineStart", "Ctrl-E": "goLineEnd", + "Ctrl-V": "goPageDown", "Shift-Ctrl-V": "goPageUp", "Ctrl-D": "delCharAfter", "Ctrl-H": "delCharBefore", + "Alt-D": "delWordAfter", "Alt-Backspace": "delWordBefore", "Ctrl-K": "killLine", "Ctrl-T": "transposeChars" + }; + keyMap["default"] = mac ? keyMap.macDefault : keyMap.pcDefault; + + // KEYMAP DISPATCH + + function getKeyMap(val) { + if (typeof val == "string") return keyMap[val]; + else return val; + } + + // Given an array of keymaps and a key name, call handle on any + // bindings found, until that returns a truthy value, at which point + // we consider the key handled. Implements things like binding a key + // to false stopping further handling and keymap fallthrough. + var lookupKey = CodeMirror.lookupKey = function(name, maps, handle) { + function lookup(map) { + map = getKeyMap(map); + var found = map[name]; + if (found === false) return "stop"; + if (found != null && handle(found)) return true; + if (map.nofallthrough) return "stop"; + + var fallthrough = map.fallthrough; + if (fallthrough == null) return false; + if (Object.prototype.toString.call(fallthrough) != "[object Array]") + return lookup(fallthrough); + for (var i = 0; i < fallthrough.length; ++i) { + var done = lookup(fallthrough[i]); + if (done) return done; + } + return false; + } + + for (var i = 0; i < maps.length; ++i) { + var done = lookup(maps[i]); + if (done) return done != "stop"; + } + }; + + // Modifier key presses don't count as 'real' key presses for the + // purpose of keymap fallthrough. + var isModifierKey = CodeMirror.isModifierKey = function(event) { + var name = keyNames[event.keyCode]; + return name == "Ctrl" || name == "Alt" || name == "Shift" || name == "Mod"; + }; + + // Look up the name of a key as indicated by an event object. + var keyName = CodeMirror.keyName = function(event, noShift) { + if (presto && event.keyCode == 34 && event["char"]) return false; + var name = keyNames[event.keyCode]; + if (name == null || event.altGraphKey) return false; + if (event.altKey) name = "Alt-" + name; + if (flipCtrlCmd ? event.metaKey : event.ctrlKey) name = "Ctrl-" + name; + if (flipCtrlCmd ? event.ctrlKey : event.metaKey) name = "Cmd-" + name; + if (!noShift && event.shiftKey) name = "Shift-" + name; + return name; + }; + + // FROMTEXTAREA + + CodeMirror.fromTextArea = function(textarea, options) { + if (!options) options = {}; + options.value = textarea.value; + if (!options.tabindex && textarea.tabindex) + options.tabindex = textarea.tabindex; + if (!options.placeholder && textarea.placeholder) + options.placeholder = textarea.placeholder; + // Set autofocus to true if this textarea is focused, or if it has + // autofocus and no other element is focused. + if (options.autofocus == null) { + var hasFocus = activeElt(); + options.autofocus = hasFocus == textarea || + textarea.getAttribute("autofocus") != null && hasFocus == document.body; + } + + function save() {textarea.value = cm.getValue();} + if (textarea.form) { + on(textarea.form, "submit", save); + // Deplorable hack to make the submit method do the right thing. + if (!options.leaveSubmitMethodAlone) { + var form = textarea.form, realSubmit = form.submit; + try { + var wrappedSubmit = form.submit = function() { + save(); + form.submit = realSubmit; + form.submit(); + form.submit = wrappedSubmit; + }; + } catch(e) {} + } + } + + textarea.style.display = "none"; + var cm = CodeMirror(function(node) { + textarea.parentNode.insertBefore(node, textarea.nextSibling); + }, options); + cm.save = save; + cm.getTextArea = function() { return textarea; }; + cm.toTextArea = function() { + save(); + textarea.parentNode.removeChild(cm.getWrapperElement()); + textarea.style.display = ""; + if (textarea.form) { + off(textarea.form, "submit", save); + if (typeof textarea.form.submit == "function") + textarea.form.submit = realSubmit; + } + }; + return cm; + }; + + // STRING STREAM + + // Fed to the mode parsers, provides helper functions to make + // parsers more succinct. + + var StringStream = CodeMirror.StringStream = function(string, tabSize) { + this.pos = this.start = 0; + this.string = string; + this.tabSize = tabSize || 8; + this.lastColumnPos = this.lastColumnValue = 0; + this.lineStart = 0; + }; + + StringStream.prototype = { + eol: function() {return this.pos >= this.string.length;}, + sol: function() {return this.pos == this.lineStart;}, + peek: function() {return this.string.charAt(this.pos) || undefined;}, + next: function() { + if (this.pos < this.string.length) + return this.string.charAt(this.pos++); + }, + eat: function(match) { + var ch = this.string.charAt(this.pos); + if (typeof match == "string") var ok = ch == match; + else var ok = ch && (match.test ? match.test(ch) : match(ch)); + if (ok) {++this.pos; return ch;} + }, + eatWhile: function(match) { + var start = this.pos; + while (this.eat(match)){} + return this.pos > start; + }, + eatSpace: function() { + var start = this.pos; + while (/[\s\u00a0]/.test(this.string.charAt(this.pos))) ++this.pos; + return this.pos > start; + }, + skipToEnd: function() {this.pos = this.string.length;}, + skipTo: function(ch) { + var found = this.string.indexOf(ch, this.pos); + if (found > -1) {this.pos = found; return true;} + }, + backUp: function(n) {this.pos -= n;}, + column: function() { + if (this.lastColumnPos < this.start) { + this.lastColumnValue = countColumn(this.string, this.start, this.tabSize, this.lastColumnPos, this.lastColumnValue); + this.lastColumnPos = this.start; + } + return this.lastColumnValue - (this.lineStart ? countColumn(this.string, this.lineStart, this.tabSize) : 0); + }, + indentation: function() { + return countColumn(this.string, null, this.tabSize) - + (this.lineStart ? countColumn(this.string, this.lineStart, this.tabSize) : 0); + }, + match: function(pattern, consume, caseInsensitive) { + if (typeof pattern == "string") { + var cased = function(str) {return caseInsensitive ? str.toLowerCase() : str;}; + var substr = this.string.substr(this.pos, pattern.length); + if (cased(substr) == cased(pattern)) { + if (consume !== false) this.pos += pattern.length; + return true; + } + } else { + var match = this.string.slice(this.pos).match(pattern); + if (match && match.index > 0) return null; + if (match && consume !== false) this.pos += match[0].length; + return match; + } + }, + current: function(){return this.string.slice(this.start, this.pos);}, + hideFirstChars: function(n, inner) { + this.lineStart += n; + try { return inner(); } + finally { this.lineStart -= n; } + } + }; + + // TEXTMARKERS + + // Created with markText and setBookmark methods. A TextMarker is a + // handle that can be used to clear or find a marked position in the + // document. Line objects hold arrays (markedSpans) containing + // {from, to, marker} object pointing to such marker objects, and + // indicating that such a marker is present on that line. Multiple + // lines may point to the same marker when it spans across lines. + // The spans will have null for their from/to properties when the + // marker continues beyond the start/end of the line. Markers have + // links back to the lines they currently touch. + + var TextMarker = CodeMirror.TextMarker = function(doc, type) { + this.lines = []; + this.type = type; + this.doc = doc; + }; + eventMixin(TextMarker); + + // Clear the marker. + TextMarker.prototype.clear = function() { + if (this.explicitlyCleared) return; + var cm = this.doc.cm, withOp = cm && !cm.curOp; + if (withOp) startOperation(cm); + if (hasHandler(this, "clear")) { + var found = this.find(); + if (found) signalLater(this, "clear", found.from, found.to); + } + var min = null, max = null; + for (var i = 0; i < this.lines.length; ++i) { + var line = this.lines[i]; + var span = getMarkedSpanFor(line.markedSpans, this); + if (cm && !this.collapsed) regLineChange(cm, lineNo(line), "text"); + else if (cm) { + if (span.to != null) max = lineNo(line); + if (span.from != null) min = lineNo(line); + } + line.markedSpans = removeMarkedSpan(line.markedSpans, span); + if (span.from == null && this.collapsed && !lineIsHidden(this.doc, line) && cm) + updateLineHeight(line, textHeight(cm.display)); + } + if (cm && this.collapsed && !cm.options.lineWrapping) for (var i = 0; i < this.lines.length; ++i) { + var visual = visualLine(this.lines[i]), len = lineLength(visual); + if (len > cm.display.maxLineLength) { + cm.display.maxLine = visual; + cm.display.maxLineLength = len; + cm.display.maxLineChanged = true; + } + } + + if (min != null && cm && this.collapsed) regChange(cm, min, max + 1); + this.lines.length = 0; + this.explicitlyCleared = true; + if (this.atomic && this.doc.cantEdit) { + this.doc.cantEdit = false; + if (cm) reCheckSelection(cm.doc); + } + if (cm) signalLater(cm, "markerCleared", cm, this); + if (withOp) endOperation(cm); + if (this.parent) this.parent.clear(); + }; + + // Find the position of the marker in the document. Returns a {from, + // to} object by default. Side can be passed to get a specific side + // -- 0 (both), -1 (left), or 1 (right). When lineObj is true, the + // Pos objects returned contain a line object, rather than a line + // number (used to prevent looking up the same line twice). + TextMarker.prototype.find = function(side, lineObj) { + if (side == null && this.type == "bookmark") side = 1; + var from, to; + for (var i = 0; i < this.lines.length; ++i) { + var line = this.lines[i]; + var span = getMarkedSpanFor(line.markedSpans, this); + if (span.from != null) { + from = Pos(lineObj ? line : lineNo(line), span.from); + if (side == -1) return from; + } + if (span.to != null) { + to = Pos(lineObj ? line : lineNo(line), span.to); + if (side == 1) return to; + } + } + return from && {from: from, to: to}; + }; + + // Signals that the marker's widget changed, and surrounding layout + // should be recomputed. + TextMarker.prototype.changed = function() { + var pos = this.find(-1, true), widget = this, cm = this.doc.cm; + if (!pos || !cm) return; + runInOp(cm, function() { + var line = pos.line, lineN = lineNo(pos.line); + var view = findViewForLine(cm, lineN); + if (view) { + clearLineMeasurementCacheFor(view); + cm.curOp.selectionChanged = cm.curOp.forceUpdate = true; + } + cm.curOp.updateMaxLine = true; + if (!lineIsHidden(widget.doc, line) && widget.height != null) { + var oldHeight = widget.height; + widget.height = null; + var dHeight = widgetHeight(widget) - oldHeight; + if (dHeight) + updateLineHeight(line, line.height + dHeight); + } + }); + }; + + TextMarker.prototype.attachLine = function(line) { + if (!this.lines.length && this.doc.cm) { + var op = this.doc.cm.curOp; + if (!op.maybeHiddenMarkers || indexOf(op.maybeHiddenMarkers, this) == -1) + (op.maybeUnhiddenMarkers || (op.maybeUnhiddenMarkers = [])).push(this); + } + this.lines.push(line); + }; + TextMarker.prototype.detachLine = function(line) { + this.lines.splice(indexOf(this.lines, line), 1); + if (!this.lines.length && this.doc.cm) { + var op = this.doc.cm.curOp; + (op.maybeHiddenMarkers || (op.maybeHiddenMarkers = [])).push(this); + } + }; + + // Collapsed markers have unique ids, in order to be able to order + // them, which is needed for uniquely determining an outer marker + // when they overlap (they may nest, but not partially overlap). + var nextMarkerId = 0; + + // Create a marker, wire it up to the right lines, and + function markText(doc, from, to, options, type) { + // Shared markers (across linked documents) are handled separately + // (markTextShared will call out to this again, once per + // document). + if (options && options.shared) return markTextShared(doc, from, to, options, type); + // Ensure we are in an operation. + if (doc.cm && !doc.cm.curOp) return operation(doc.cm, markText)(doc, from, to, options, type); + + var marker = new TextMarker(doc, type), diff = cmp(from, to); + if (options) copyObj(options, marker, false); + // Don't connect empty markers unless clearWhenEmpty is false + if (diff > 0 || diff == 0 && marker.clearWhenEmpty !== false) + return marker; + if (marker.replacedWith) { + // Showing up as a widget implies collapsed (widget replaces text) + marker.collapsed = true; + marker.widgetNode = elt("span", [marker.replacedWith], "CodeMirror-widget"); + if (!options.handleMouseEvents) marker.widgetNode.ignoreEvents = true; + if (options.insertLeft) marker.widgetNode.insertLeft = true; + } + if (marker.collapsed) { + if (conflictingCollapsedRange(doc, from.line, from, to, marker) || + from.line != to.line && conflictingCollapsedRange(doc, to.line, from, to, marker)) + throw new Error("Inserting collapsed marker partially overlapping an existing one"); + sawCollapsedSpans = true; + } + + if (marker.addToHistory) + addChangeToHistory(doc, {from: from, to: to, origin: "markText"}, doc.sel, NaN); + + var curLine = from.line, cm = doc.cm, updateMaxLine; + doc.iter(curLine, to.line + 1, function(line) { + if (cm && marker.collapsed && !cm.options.lineWrapping && visualLine(line) == cm.display.maxLine) + updateMaxLine = true; + if (marker.collapsed && curLine != from.line) updateLineHeight(line, 0); + addMarkedSpan(line, new MarkedSpan(marker, + curLine == from.line ? from.ch : null, + curLine == to.line ? to.ch : null)); + ++curLine; + }); + // lineIsHidden depends on the presence of the spans, so needs a second pass + if (marker.collapsed) doc.iter(from.line, to.line + 1, function(line) { + if (lineIsHidden(doc, line)) updateLineHeight(line, 0); + }); + + if (marker.clearOnEnter) on(marker, "beforeCursorEnter", function() { marker.clear(); }); + + if (marker.readOnly) { + sawReadOnlySpans = true; + if (doc.history.done.length || doc.history.undone.length) + doc.clearHistory(); + } + if (marker.collapsed) { + marker.id = ++nextMarkerId; + marker.atomic = true; + } + if (cm) { + // Sync editor state + if (updateMaxLine) cm.curOp.updateMaxLine = true; + if (marker.collapsed) + regChange(cm, from.line, to.line + 1); + else if (marker.className || marker.title || marker.startStyle || marker.endStyle) + for (var i = from.line; i <= to.line; i++) regLineChange(cm, i, "text"); + if (marker.atomic) reCheckSelection(cm.doc); + signalLater(cm, "markerAdded", cm, marker); + } + return marker; + } + + // SHARED TEXTMARKERS + + // A shared marker spans multiple linked documents. It is + // implemented as a meta-marker-object controlling multiple normal + // markers. + var SharedTextMarker = CodeMirror.SharedTextMarker = function(markers, primary) { + this.markers = markers; + this.primary = primary; + for (var i = 0; i < markers.length; ++i) + markers[i].parent = this; + }; + eventMixin(SharedTextMarker); + + SharedTextMarker.prototype.clear = function() { + if (this.explicitlyCleared) return; + this.explicitlyCleared = true; + for (var i = 0; i < this.markers.length; ++i) + this.markers[i].clear(); + signalLater(this, "clear"); + }; + SharedTextMarker.prototype.find = function(side, lineObj) { + return this.primary.find(side, lineObj); + }; + + function markTextShared(doc, from, to, options, type) { + options = copyObj(options); + options.shared = false; + var markers = [markText(doc, from, to, options, type)], primary = markers[0]; + var widget = options.widgetNode; + linkedDocs(doc, function(doc) { + if (widget) options.widgetNode = widget.cloneNode(true); + markers.push(markText(doc, clipPos(doc, from), clipPos(doc, to), options, type)); + for (var i = 0; i < doc.linked.length; ++i) + if (doc.linked[i].isParent) return; + primary = lst(markers); + }); + return new SharedTextMarker(markers, primary); + } + + function findSharedMarkers(doc) { + return doc.findMarks(Pos(doc.first, 0), doc.clipPos(Pos(doc.lastLine())), + function(m) { return m.parent; }); + } + + function copySharedMarkers(doc, markers) { + for (var i = 0; i < markers.length; i++) { + var marker = markers[i], pos = marker.find(); + var mFrom = doc.clipPos(pos.from), mTo = doc.clipPos(pos.to); + if (cmp(mFrom, mTo)) { + var subMark = markText(doc, mFrom, mTo, marker.primary, marker.primary.type); + marker.markers.push(subMark); + subMark.parent = marker; + } + } + } + + function detachSharedMarkers(markers) { + for (var i = 0; i < markers.length; i++) { + var marker = markers[i], linked = [marker.primary.doc];; + linkedDocs(marker.primary.doc, function(d) { linked.push(d); }); + for (var j = 0; j < marker.markers.length; j++) { + var subMarker = marker.markers[j]; + if (indexOf(linked, subMarker.doc) == -1) { + subMarker.parent = null; + marker.markers.splice(j--, 1); + } + } + } + } + + // TEXTMARKER SPANS + + function MarkedSpan(marker, from, to) { + this.marker = marker; + this.from = from; this.to = to; + } + + // Search an array of spans for a span matching the given marker. + function getMarkedSpanFor(spans, marker) { + if (spans) for (var i = 0; i < spans.length; ++i) { + var span = spans[i]; + if (span.marker == marker) return span; + } + } + // Remove a span from an array, returning undefined if no spans are + // left (we don't store arrays for lines without spans). + function removeMarkedSpan(spans, span) { + for (var r, i = 0; i < spans.length; ++i) + if (spans[i] != span) (r || (r = [])).push(spans[i]); + return r; + } + // Add a span to a line. + function addMarkedSpan(line, span) { + line.markedSpans = line.markedSpans ? line.markedSpans.concat([span]) : [span]; + span.marker.attachLine(line); + } + + // Used for the algorithm that adjusts markers for a change in the + // document. These functions cut an array of spans at a given + // character position, returning an array of remaining chunks (or + // undefined if nothing remains). + function markedSpansBefore(old, startCh, isInsert) { + if (old) for (var i = 0, nw; i < old.length; ++i) { + var span = old[i], marker = span.marker; + var startsBefore = span.from == null || (marker.inclusiveLeft ? span.from <= startCh : span.from < startCh); + if (startsBefore || span.from == startCh && marker.type == "bookmark" && (!isInsert || !span.marker.insertLeft)) { + var endsAfter = span.to == null || (marker.inclusiveRight ? span.to >= startCh : span.to > startCh); + (nw || (nw = [])).push(new MarkedSpan(marker, span.from, endsAfter ? null : span.to)); + } + } + return nw; + } + function markedSpansAfter(old, endCh, isInsert) { + if (old) for (var i = 0, nw; i < old.length; ++i) { + var span = old[i], marker = span.marker; + var endsAfter = span.to == null || (marker.inclusiveRight ? span.to >= endCh : span.to > endCh); + if (endsAfter || span.from == endCh && marker.type == "bookmark" && (!isInsert || span.marker.insertLeft)) { + var startsBefore = span.from == null || (marker.inclusiveLeft ? span.from <= endCh : span.from < endCh); + (nw || (nw = [])).push(new MarkedSpan(marker, startsBefore ? null : span.from - endCh, + span.to == null ? null : span.to - endCh)); + } + } + return nw; + } + + // Given a change object, compute the new set of marker spans that + // cover the line in which the change took place. Removes spans + // entirely within the change, reconnects spans belonging to the + // same marker that appear on both sides of the change, and cuts off + // spans partially within the change. Returns an array of span + // arrays with one element for each line in (after) the change. + function stretchSpansOverChange(doc, change) { + var oldFirst = isLine(doc, change.from.line) && getLine(doc, change.from.line).markedSpans; + var oldLast = isLine(doc, change.to.line) && getLine(doc, change.to.line).markedSpans; + if (!oldFirst && !oldLast) return null; + + var startCh = change.from.ch, endCh = change.to.ch, isInsert = cmp(change.from, change.to) == 0; + // Get the spans that 'stick out' on both sides + var first = markedSpansBefore(oldFirst, startCh, isInsert); + var last = markedSpansAfter(oldLast, endCh, isInsert); + + // Next, merge those two ends + var sameLine = change.text.length == 1, offset = lst(change.text).length + (sameLine ? startCh : 0); + if (first) { + // Fix up .to properties of first + for (var i = 0; i < first.length; ++i) { + var span = first[i]; + if (span.to == null) { + var found = getMarkedSpanFor(last, span.marker); + if (!found) span.to = startCh; + else if (sameLine) span.to = found.to == null ? null : found.to + offset; + } + } + } + if (last) { + // Fix up .from in last (or move them into first in case of sameLine) + for (var i = 0; i < last.length; ++i) { + var span = last[i]; + if (span.to != null) span.to += offset; + if (span.from == null) { + var found = getMarkedSpanFor(first, span.marker); + if (!found) { + span.from = offset; + if (sameLine) (first || (first = [])).push(span); + } + } else { + span.from += offset; + if (sameLine) (first || (first = [])).push(span); + } + } + } + // Make sure we didn't create any zero-length spans + if (first) first = clearEmptySpans(first); + if (last && last != first) last = clearEmptySpans(last); + + var newMarkers = [first]; + if (!sameLine) { + // Fill gap with whole-line-spans + var gap = change.text.length - 2, gapMarkers; + if (gap > 0 && first) + for (var i = 0; i < first.length; ++i) + if (first[i].to == null) + (gapMarkers || (gapMarkers = [])).push(new MarkedSpan(first[i].marker, null, null)); + for (var i = 0; i < gap; ++i) + newMarkers.push(gapMarkers); + newMarkers.push(last); + } + return newMarkers; + } + + // Remove spans that are empty and don't have a clearWhenEmpty + // option of false. + function clearEmptySpans(spans) { + for (var i = 0; i < spans.length; ++i) { + var span = spans[i]; + if (span.from != null && span.from == span.to && span.marker.clearWhenEmpty !== false) + spans.splice(i--, 1); + } + if (!spans.length) return null; + return spans; + } + + // Used for un/re-doing changes from the history. Combines the + // result of computing the existing spans with the set of spans that + // existed in the history (so that deleting around a span and then + // undoing brings back the span). + function mergeOldSpans(doc, change) { + var old = getOldSpans(doc, change); + var stretched = stretchSpansOverChange(doc, change); + if (!old) return stretched; + if (!stretched) return old; + + for (var i = 0; i < old.length; ++i) { + var oldCur = old[i], stretchCur = stretched[i]; + if (oldCur && stretchCur) { + spans: for (var j = 0; j < stretchCur.length; ++j) { + var span = stretchCur[j]; + for (var k = 0; k < oldCur.length; ++k) + if (oldCur[k].marker == span.marker) continue spans; + oldCur.push(span); + } + } else if (stretchCur) { + old[i] = stretchCur; + } + } + return old; + } + + // Used to 'clip' out readOnly ranges when making a change. + function removeReadOnlyRanges(doc, from, to) { + var markers = null; + doc.iter(from.line, to.line + 1, function(line) { + if (line.markedSpans) for (var i = 0; i < line.markedSpans.length; ++i) { + var mark = line.markedSpans[i].marker; + if (mark.readOnly && (!markers || indexOf(markers, mark) == -1)) + (markers || (markers = [])).push(mark); + } + }); + if (!markers) return null; + var parts = [{from: from, to: to}]; + for (var i = 0; i < markers.length; ++i) { + var mk = markers[i], m = mk.find(0); + for (var j = 0; j < parts.length; ++j) { + var p = parts[j]; + if (cmp(p.to, m.from) < 0 || cmp(p.from, m.to) > 0) continue; + var newParts = [j, 1], dfrom = cmp(p.from, m.from), dto = cmp(p.to, m.to); + if (dfrom < 0 || !mk.inclusiveLeft && !dfrom) + newParts.push({from: p.from, to: m.from}); + if (dto > 0 || !mk.inclusiveRight && !dto) + newParts.push({from: m.to, to: p.to}); + parts.splice.apply(parts, newParts); + j += newParts.length - 1; + } + } + return parts; + } + + // Connect or disconnect spans from a line. + function detachMarkedSpans(line) { + var spans = line.markedSpans; + if (!spans) return; + for (var i = 0; i < spans.length; ++i) + spans[i].marker.detachLine(line); + line.markedSpans = null; + } + function attachMarkedSpans(line, spans) { + if (!spans) return; + for (var i = 0; i < spans.length; ++i) + spans[i].marker.attachLine(line); + line.markedSpans = spans; + } + + // Helpers used when computing which overlapping collapsed span + // counts as the larger one. + function extraLeft(marker) { return marker.inclusiveLeft ? -1 : 0; } + function extraRight(marker) { return marker.inclusiveRight ? 1 : 0; } + + // Returns a number indicating which of two overlapping collapsed + // spans is larger (and thus includes the other). Falls back to + // comparing ids when the spans cover exactly the same range. + function compareCollapsedMarkers(a, b) { + var lenDiff = a.lines.length - b.lines.length; + if (lenDiff != 0) return lenDiff; + var aPos = a.find(), bPos = b.find(); + var fromCmp = cmp(aPos.from, bPos.from) || extraLeft(a) - extraLeft(b); + if (fromCmp) return -fromCmp; + var toCmp = cmp(aPos.to, bPos.to) || extraRight(a) - extraRight(b); + if (toCmp) return toCmp; + return b.id - a.id; + } + + // Find out whether a line ends or starts in a collapsed span. If + // so, return the marker for that span. + function collapsedSpanAtSide(line, start) { + var sps = sawCollapsedSpans && line.markedSpans, found; + if (sps) for (var sp, i = 0; i < sps.length; ++i) { + sp = sps[i]; + if (sp.marker.collapsed && (start ? sp.from : sp.to) == null && + (!found || compareCollapsedMarkers(found, sp.marker) < 0)) + found = sp.marker; + } + return found; + } + function collapsedSpanAtStart(line) { return collapsedSpanAtSide(line, true); } + function collapsedSpanAtEnd(line) { return collapsedSpanAtSide(line, false); } + + // Test whether there exists a collapsed span that partially + // overlaps (covers the start or end, but not both) of a new span. + // Such overlap is not allowed. + function conflictingCollapsedRange(doc, lineNo, from, to, marker) { + var line = getLine(doc, lineNo); + var sps = sawCollapsedSpans && line.markedSpans; + if (sps) for (var i = 0; i < sps.length; ++i) { + var sp = sps[i]; + if (!sp.marker.collapsed) continue; + var found = sp.marker.find(0); + var fromCmp = cmp(found.from, from) || extraLeft(sp.marker) - extraLeft(marker); + var toCmp = cmp(found.to, to) || extraRight(sp.marker) - extraRight(marker); + if (fromCmp >= 0 && toCmp <= 0 || fromCmp <= 0 && toCmp >= 0) continue; + if (fromCmp <= 0 && (cmp(found.to, from) || extraRight(sp.marker) - extraLeft(marker)) > 0 || + fromCmp >= 0 && (cmp(found.from, to) || extraLeft(sp.marker) - extraRight(marker)) < 0) + return true; + } + } + + // A visual line is a line as drawn on the screen. Folding, for + // example, can cause multiple logical lines to appear on the same + // visual line. This finds the start of the visual line that the + // given line is part of (usually that is the line itself). + function visualLine(line) { + var merged; + while (merged = collapsedSpanAtStart(line)) + line = merged.find(-1, true).line; + return line; + } + + // Returns an array of logical lines that continue the visual line + // started by the argument, or undefined if there are no such lines. + function visualLineContinued(line) { + var merged, lines; + while (merged = collapsedSpanAtEnd(line)) { + line = merged.find(1, true).line; + (lines || (lines = [])).push(line); + } + return lines; + } + + // Get the line number of the start of the visual line that the + // given line number is part of. + function visualLineNo(doc, lineN) { + var line = getLine(doc, lineN), vis = visualLine(line); + if (line == vis) return lineN; + return lineNo(vis); + } + // Get the line number of the start of the next visual line after + // the given line. + function visualLineEndNo(doc, lineN) { + if (lineN > doc.lastLine()) return lineN; + var line = getLine(doc, lineN), merged; + if (!lineIsHidden(doc, line)) return lineN; + while (merged = collapsedSpanAtEnd(line)) + line = merged.find(1, true).line; + return lineNo(line) + 1; + } + + // Compute whether a line is hidden. Lines count as hidden when they + // are part of a visual line that starts with another line, or when + // they are entirely covered by collapsed, non-widget span. + function lineIsHidden(doc, line) { + var sps = sawCollapsedSpans && line.markedSpans; + if (sps) for (var sp, i = 0; i < sps.length; ++i) { + sp = sps[i]; + if (!sp.marker.collapsed) continue; + if (sp.from == null) return true; + if (sp.marker.widgetNode) continue; + if (sp.from == 0 && sp.marker.inclusiveLeft && lineIsHiddenInner(doc, line, sp)) + return true; + } + } + function lineIsHiddenInner(doc, line, span) { + if (span.to == null) { + var end = span.marker.find(1, true); + return lineIsHiddenInner(doc, end.line, getMarkedSpanFor(end.line.markedSpans, span.marker)); + } + if (span.marker.inclusiveRight && span.to == line.text.length) + return true; + for (var sp, i = 0; i < line.markedSpans.length; ++i) { + sp = line.markedSpans[i]; + if (sp.marker.collapsed && !sp.marker.widgetNode && sp.from == span.to && + (sp.to == null || sp.to != span.from) && + (sp.marker.inclusiveLeft || span.marker.inclusiveRight) && + lineIsHiddenInner(doc, line, sp)) return true; + } + } + + // LINE WIDGETS + + // Line widgets are block elements displayed above or below a line. + + var LineWidget = CodeMirror.LineWidget = function(cm, node, options) { + if (options) for (var opt in options) if (options.hasOwnProperty(opt)) + this[opt] = options[opt]; + this.cm = cm; + this.node = node; + }; + eventMixin(LineWidget); + + function adjustScrollWhenAboveVisible(cm, line, diff) { + if (heightAtLine(line) < ((cm.curOp && cm.curOp.scrollTop) || cm.doc.scrollTop)) + addToScrollPos(cm, null, diff); + } + + LineWidget.prototype.clear = function() { + var cm = this.cm, ws = this.line.widgets, line = this.line, no = lineNo(line); + if (no == null || !ws) return; + for (var i = 0; i < ws.length; ++i) if (ws[i] == this) ws.splice(i--, 1); + if (!ws.length) line.widgets = null; + var height = widgetHeight(this); + runInOp(cm, function() { + adjustScrollWhenAboveVisible(cm, line, -height); + regLineChange(cm, no, "widget"); + updateLineHeight(line, Math.max(0, line.height - height)); + }); + }; + LineWidget.prototype.changed = function() { + var oldH = this.height, cm = this.cm, line = this.line; + this.height = null; + var diff = widgetHeight(this) - oldH; + if (!diff) return; + runInOp(cm, function() { + cm.curOp.forceUpdate = true; + adjustScrollWhenAboveVisible(cm, line, diff); + updateLineHeight(line, line.height + diff); + }); + }; + + function widgetHeight(widget) { + if (widget.height != null) return widget.height; + if (!contains(document.body, widget.node)) + removeChildrenAndAdd(widget.cm.display.measure, elt("div", [widget.node], null, "position: relative")); + return widget.height = widget.node.offsetHeight; + } + + function addLineWidget(cm, handle, node, options) { + var widget = new LineWidget(cm, node, options); + if (widget.noHScroll) cm.display.alignWidgets = true; + changeLine(cm, handle, "widget", function(line) { + var widgets = line.widgets || (line.widgets = []); + if (widget.insertAt == null) widgets.push(widget); + else widgets.splice(Math.min(widgets.length - 1, Math.max(0, widget.insertAt)), 0, widget); + widget.line = line; + if (!lineIsHidden(cm.doc, line)) { + var aboveVisible = heightAtLine(line) < cm.doc.scrollTop; + updateLineHeight(line, line.height + widgetHeight(widget)); + if (aboveVisible) addToScrollPos(cm, null, widget.height); + cm.curOp.forceUpdate = true; + } + return true; + }); + return widget; + } + + // LINE DATA STRUCTURE + + // Line objects. These hold state related to a line, including + // highlighting info (the styles array). + var Line = CodeMirror.Line = function(text, markedSpans, estimateHeight) { + this.text = text; + attachMarkedSpans(this, markedSpans); + this.height = estimateHeight ? estimateHeight(this) : 1; + }; + eventMixin(Line); + Line.prototype.lineNo = function() { return lineNo(this); }; + + // Change the content (text, markers) of a line. Automatically + // invalidates cached information and tries to re-estimate the + // line's height. + function updateLine(line, text, markedSpans, estimateHeight) { + line.text = text; + if (line.stateAfter) line.stateAfter = null; + if (line.styles) line.styles = null; + if (line.order != null) line.order = null; + detachMarkedSpans(line); + attachMarkedSpans(line, markedSpans); + var estHeight = estimateHeight ? estimateHeight(line) : 1; + if (estHeight != line.height) updateLineHeight(line, estHeight); + } + + // Detach a line from the document tree and its markers. + function cleanUpLine(line) { + line.parent = null; + detachMarkedSpans(line); + } + + function extractLineClasses(type, output) { + if (type) for (;;) { + var lineClass = type.match(/(?:^|\s+)line-(background-)?(\S+)/); + if (!lineClass) break; + type = type.slice(0, lineClass.index) + type.slice(lineClass.index + lineClass[0].length); + var prop = lineClass[1] ? "bgClass" : "textClass"; + if (output[prop] == null) + output[prop] = lineClass[2]; + else if (!(new RegExp("(?:^|\s)" + lineClass[2] + "(?:$|\s)")).test(output[prop])) + output[prop] += " " + lineClass[2]; + } + return type; + } + + function callBlankLine(mode, state) { + if (mode.blankLine) return mode.blankLine(state); + if (!mode.innerMode) return; + var inner = CodeMirror.innerMode(mode, state); + if (inner.mode.blankLine) return inner.mode.blankLine(inner.state); + } + + function readToken(mode, stream, state) { + for (var i = 0; i < 10; i++) { + var style = mode.token(stream, state); + if (stream.pos > stream.start) return style; + } + throw new Error("Mode " + mode.name + " failed to advance stream."); + } + + // Run the given mode's parser over a line, calling f for each token. + function runMode(cm, text, mode, state, f, lineClasses, forceToEnd) { + var flattenSpans = mode.flattenSpans; + if (flattenSpans == null) flattenSpans = cm.options.flattenSpans; + var curStart = 0, curStyle = null; + var stream = new StringStream(text, cm.options.tabSize), style; + if (text == "") extractLineClasses(callBlankLine(mode, state), lineClasses); + while (!stream.eol()) { + if (stream.pos > cm.options.maxHighlightLength) { + flattenSpans = false; + if (forceToEnd) processLine(cm, text, state, stream.pos); + stream.pos = text.length; + style = null; + } else { + style = extractLineClasses(readToken(mode, stream, state), lineClasses); + } + if (cm.options.addModeClass) { + var mName = CodeMirror.innerMode(mode, state).mode.name; + if (mName) style = "m-" + (style ? mName + " " + style : mName); + } + if (!flattenSpans || curStyle != style) { + if (curStart < stream.start) f(stream.start, curStyle); + curStart = stream.start; curStyle = style; + } + stream.start = stream.pos; + } + while (curStart < stream.pos) { + // Webkit seems to refuse to render text nodes longer than 57444 characters + var pos = Math.min(stream.pos, curStart + 50000); + f(pos, curStyle); + curStart = pos; + } + } + + // Compute a style array (an array starting with a mode generation + // -- for invalidation -- followed by pairs of end positions and + // style strings), which is used to highlight the tokens on the + // line. + function highlightLine(cm, line, state, forceToEnd) { + // A styles array always starts with a number identifying the + // mode/overlays that it is based on (for easy invalidation). + var st = [cm.state.modeGen], lineClasses = {}; + // Compute the base array of styles + runMode(cm, line.text, cm.doc.mode, state, function(end, style) { + st.push(end, style); + }, lineClasses, forceToEnd); + + // Run overlays, adjust style array. + for (var o = 0; o < cm.state.overlays.length; ++o) { + var overlay = cm.state.overlays[o], i = 1, at = 0; + runMode(cm, line.text, overlay.mode, true, function(end, style) { + var start = i; + // Ensure there's a token end at the current position, and that i points at it + while (at < end) { + var i_end = st[i]; + if (i_end > end) + st.splice(i, 1, end, st[i+1], i_end); + i += 2; + at = Math.min(end, i_end); + } + if (!style) return; + if (overlay.opaque) { + st.splice(start, i - start, end, "cm-overlay " + style); + i = start + 2; + } else { + for (; start < i; start += 2) { + var cur = st[start+1]; + st[start+1] = (cur ? cur + " " : "") + "cm-overlay " + style; + } + } + }, lineClasses); + } + + return {styles: st, classes: lineClasses.bgClass || lineClasses.textClass ? lineClasses : null}; + } + + function getLineStyles(cm, line) { + if (!line.styles || line.styles[0] != cm.state.modeGen) { + var result = highlightLine(cm, line, line.stateAfter = getStateBefore(cm, lineNo(line))); + line.styles = result.styles; + if (result.classes) line.styleClasses = result.classes; + else if (line.styleClasses) line.styleClasses = null; + } + return line.styles; + } + + // Lightweight form of highlight -- proceed over this line and + // update state, but don't save a style array. Used for lines that + // aren't currently visible. + function processLine(cm, text, state, startAt) { + var mode = cm.doc.mode; + var stream = new StringStream(text, cm.options.tabSize); + stream.start = stream.pos = startAt || 0; + if (text == "") callBlankLine(mode, state); + while (!stream.eol() && stream.pos <= cm.options.maxHighlightLength) { + readToken(mode, stream, state); + stream.start = stream.pos; + } + } + + // Convert a style as returned by a mode (either null, or a string + // containing one or more styles) to a CSS style. This is cached, + // and also looks for line-wide styles. + var styleToClassCache = {}, styleToClassCacheWithMode = {}; + function interpretTokenStyle(style, options) { + if (!style || /^\s*$/.test(style)) return null; + var cache = options.addModeClass ? styleToClassCacheWithMode : styleToClassCache; + return cache[style] || + (cache[style] = style.replace(/\S+/g, "cm-$&")); + } + + // Render the DOM representation of the text of a line. Also builds + // up a 'line map', which points at the DOM nodes that represent + // specific stretches of text, and is used by the measuring code. + // The returned object contains the DOM node, this map, and + // information about line-wide styles that were set by the mode. + function buildLineContent(cm, lineView) { + // The padding-right forces the element to have a 'border', which + // is needed on Webkit to be able to get line-level bounding + // rectangles for it (in measureChar). + var content = elt("span", null, null, webkit ? "padding-right: .1px" : null); + var builder = {pre: elt("pre", [content]), content: content, col: 0, pos: 0, cm: cm}; + lineView.measure = {}; + + // Iterate over the logical lines that make up this visual line. + for (var i = 0; i <= (lineView.rest ? lineView.rest.length : 0); i++) { + var line = i ? lineView.rest[i - 1] : lineView.line, order; + builder.pos = 0; + builder.addToken = buildToken; + // Optionally wire in some hacks into the token-rendering + // algorithm, to deal with browser quirks. + if ((ie || webkit) && cm.getOption("lineWrapping")) + builder.addToken = buildTokenSplitSpaces(builder.addToken); + if (hasBadBidiRects(cm.display.measure) && (order = getOrder(line))) + builder.addToken = buildTokenBadBidi(builder.addToken, order); + builder.map = []; + insertLineContent(line, builder, getLineStyles(cm, line)); + if (line.styleClasses) { + if (line.styleClasses.bgClass) + builder.bgClass = joinClasses(line.styleClasses.bgClass, builder.bgClass || ""); + if (line.styleClasses.textClass) + builder.textClass = joinClasses(line.styleClasses.textClass, builder.textClass || ""); + } + + // Ensure at least a single node is present, for measuring. + if (builder.map.length == 0) + builder.map.push(0, 0, builder.content.appendChild(zeroWidthElement(cm.display.measure))); + + // Store the map and a cache object for the current logical line + if (i == 0) { + lineView.measure.map = builder.map; + lineView.measure.cache = {}; + } else { + (lineView.measure.maps || (lineView.measure.maps = [])).push(builder.map); + (lineView.measure.caches || (lineView.measure.caches = [])).push({}); + } + } + + signal(cm, "renderLine", cm, lineView.line, builder.pre); + return builder; + } + + function defaultSpecialCharPlaceholder(ch) { + var token = elt("span", "\u2022", "cm-invalidchar"); + token.title = "\\u" + ch.charCodeAt(0).toString(16); + return token; + } + + // Build up the DOM representation for a single token, and add it to + // the line map. Takes care to render special characters separately. + function buildToken(builder, text, style, startStyle, endStyle, title) { + if (!text) return; + var special = builder.cm.options.specialChars, mustWrap = false; + if (!special.test(text)) { + builder.col += text.length; + var content = document.createTextNode(text); + builder.map.push(builder.pos, builder.pos + text.length, content); + if (ie_upto8) mustWrap = true; + builder.pos += text.length; + } else { + var content = document.createDocumentFragment(), pos = 0; + while (true) { + special.lastIndex = pos; + var m = special.exec(text); + var skipped = m ? m.index - pos : text.length - pos; + if (skipped) { + var txt = document.createTextNode(text.slice(pos, pos + skipped)); + if (ie_upto8) content.appendChild(elt("span", [txt])); + else content.appendChild(txt); + builder.map.push(builder.pos, builder.pos + skipped, txt); + builder.col += skipped; + builder.pos += skipped; + } + if (!m) break; + pos += skipped + 1; + if (m[0] == "\t") { + var tabSize = builder.cm.options.tabSize, tabWidth = tabSize - builder.col % tabSize; + var txt = content.appendChild(elt("span", spaceStr(tabWidth), "cm-tab")); + builder.col += tabWidth; + } else { + var txt = builder.cm.options.specialCharPlaceholder(m[0]); + if (ie_upto8) content.appendChild(elt("span", [txt])); + else content.appendChild(txt); + builder.col += 1; + } + builder.map.push(builder.pos, builder.pos + 1, txt); + builder.pos++; + } + } + if (style || startStyle || endStyle || mustWrap) { + var fullStyle = style || ""; + if (startStyle) fullStyle += startStyle; + if (endStyle) fullStyle += endStyle; + var token = elt("span", [content], fullStyle); + if (title) token.title = title; + return builder.content.appendChild(token); + } + builder.content.appendChild(content); + } + + function buildTokenSplitSpaces(inner) { + function split(old) { + var out = " "; + for (var i = 0; i < old.length - 2; ++i) out += i % 2 ? " " : "\u00a0"; + out += " "; + return out; + } + return function(builder, text, style, startStyle, endStyle, title) { + inner(builder, text.replace(/ {3,}/g, split), style, startStyle, endStyle, title); + }; + } + + // Work around nonsense dimensions being reported for stretches of + // right-to-left text. + function buildTokenBadBidi(inner, order) { + return function(builder, text, style, startStyle, endStyle, title) { + style = style ? style + " cm-force-border" : "cm-force-border"; + var start = builder.pos, end = start + text.length; + for (;;) { + // Find the part that overlaps with the start of this text + for (var i = 0; i < order.length; i++) { + var part = order[i]; + if (part.to > start && part.from <= start) break; + } + if (part.to >= end) return inner(builder, text, style, startStyle, endStyle, title); + inner(builder, text.slice(0, part.to - start), style, startStyle, null, title); + startStyle = null; + text = text.slice(part.to - start); + start = part.to; + } + }; + } + + function buildCollapsedSpan(builder, size, marker, ignoreWidget) { + var widget = !ignoreWidget && marker.widgetNode; + if (widget) { + builder.map.push(builder.pos, builder.pos + size, widget); + builder.content.appendChild(widget); + } + builder.pos += size; + } + + // Outputs a number of spans to make up a line, taking highlighting + // and marked text into account. + function insertLineContent(line, builder, styles) { + var spans = line.markedSpans, allText = line.text, at = 0; + if (!spans) { + for (var i = 1; i < styles.length; i+=2) + builder.addToken(builder, allText.slice(at, at = styles[i]), interpretTokenStyle(styles[i+1], builder.cm.options)); + return; + } + + var len = allText.length, pos = 0, i = 1, text = "", style; + var nextChange = 0, spanStyle, spanEndStyle, spanStartStyle, title, collapsed; + for (;;) { + if (nextChange == pos) { // Update current marker set + spanStyle = spanEndStyle = spanStartStyle = title = ""; + collapsed = null; nextChange = Infinity; + var foundBookmarks = []; + for (var j = 0; j < spans.length; ++j) { + var sp = spans[j], m = sp.marker; + if (sp.from <= pos && (sp.to == null || sp.to > pos)) { + if (sp.to != null && nextChange > sp.to) { nextChange = sp.to; spanEndStyle = ""; } + if (m.className) spanStyle += " " + m.className; + if (m.startStyle && sp.from == pos) spanStartStyle += " " + m.startStyle; + if (m.endStyle && sp.to == nextChange) spanEndStyle += " " + m.endStyle; + if (m.title && !title) title = m.title; + if (m.collapsed && (!collapsed || compareCollapsedMarkers(collapsed.marker, m) < 0)) + collapsed = sp; + } else if (sp.from > pos && nextChange > sp.from) { + nextChange = sp.from; + } + if (m.type == "bookmark" && sp.from == pos && m.widgetNode) foundBookmarks.push(m); + } + if (collapsed && (collapsed.from || 0) == pos) { + buildCollapsedSpan(builder, (collapsed.to == null ? len + 1 : collapsed.to) - pos, + collapsed.marker, collapsed.from == null); + if (collapsed.to == null) return; + } + if (!collapsed && foundBookmarks.length) for (var j = 0; j < foundBookmarks.length; ++j) + buildCollapsedSpan(builder, 0, foundBookmarks[j]); + } + if (pos >= len) break; + + var upto = Math.min(len, nextChange); + while (true) { + if (text) { + var end = pos + text.length; + if (!collapsed) { + var tokenText = end > upto ? text.slice(0, upto - pos) : text; + builder.addToken(builder, tokenText, style ? style + spanStyle : spanStyle, + spanStartStyle, pos + tokenText.length == nextChange ? spanEndStyle : "", title); + } + if (end >= upto) {text = text.slice(upto - pos); pos = upto; break;} + pos = end; + spanStartStyle = ""; + } + text = allText.slice(at, at = styles[i++]); + style = interpretTokenStyle(styles[i++], builder.cm.options); + } + } + } + + // DOCUMENT DATA STRUCTURE + + // By default, updates that start and end at the beginning of a line + // are treated specially, in order to make the association of line + // widgets and marker elements with the text behave more intuitive. + function isWholeLineUpdate(doc, change) { + return change.from.ch == 0 && change.to.ch == 0 && lst(change.text) == "" && + (!doc.cm || doc.cm.options.wholeLineUpdateBefore); + } + + // Perform a change on the document data structure. + function updateDoc(doc, change, markedSpans, estimateHeight) { + function spansFor(n) {return markedSpans ? markedSpans[n] : null;} + function update(line, text, spans) { + updateLine(line, text, spans, estimateHeight); + signalLater(line, "change", line, change); + } + + var from = change.from, to = change.to, text = change.text; + var firstLine = getLine(doc, from.line), lastLine = getLine(doc, to.line); + var lastText = lst(text), lastSpans = spansFor(text.length - 1), nlines = to.line - from.line; + + // Adjust the line structure + if (isWholeLineUpdate(doc, change)) { + // This is a whole-line replace. Treated specially to make + // sure line objects move the way they are supposed to. + for (var i = 0, added = []; i < text.length - 1; ++i) + added.push(new Line(text[i], spansFor(i), estimateHeight)); + update(lastLine, lastLine.text, lastSpans); + if (nlines) doc.remove(from.line, nlines); + if (added.length) doc.insert(from.line, added); + } else if (firstLine == lastLine) { + if (text.length == 1) { + update(firstLine, firstLine.text.slice(0, from.ch) + lastText + firstLine.text.slice(to.ch), lastSpans); + } else { + for (var added = [], i = 1; i < text.length - 1; ++i) + added.push(new Line(text[i], spansFor(i), estimateHeight)); + added.push(new Line(lastText + firstLine.text.slice(to.ch), lastSpans, estimateHeight)); + update(firstLine, firstLine.text.slice(0, from.ch) + text[0], spansFor(0)); + doc.insert(from.line + 1, added); + } + } else if (text.length == 1) { + update(firstLine, firstLine.text.slice(0, from.ch) + text[0] + lastLine.text.slice(to.ch), spansFor(0)); + doc.remove(from.line + 1, nlines); + } else { + update(firstLine, firstLine.text.slice(0, from.ch) + text[0], spansFor(0)); + update(lastLine, lastText + lastLine.text.slice(to.ch), lastSpans); + for (var i = 1, added = []; i < text.length - 1; ++i) + added.push(new Line(text[i], spansFor(i), estimateHeight)); + if (nlines > 1) doc.remove(from.line + 1, nlines - 1); + doc.insert(from.line + 1, added); + } + + signalLater(doc, "change", doc, change); + } + + // The document is represented as a BTree consisting of leaves, with + // chunk of lines in them, and branches, with up to ten leaves or + // other branch nodes below them. The top node is always a branch + // node, and is the document object itself (meaning it has + // additional methods and properties). + // + // All nodes have parent links. The tree is used both to go from + // line numbers to line objects, and to go from objects to numbers. + // It also indexes by height, and is used to convert between height + // and line object, and to find the total height of the document. + // + // See also http://marijnhaverbeke.nl/blog/codemirror-line-tree.html + + function LeafChunk(lines) { + this.lines = lines; + this.parent = null; + for (var i = 0, height = 0; i < lines.length; ++i) { + lines[i].parent = this; + height += lines[i].height; + } + this.height = height; + } + + LeafChunk.prototype = { + chunkSize: function() { return this.lines.length; }, + // Remove the n lines at offset 'at'. + removeInner: function(at, n) { + for (var i = at, e = at + n; i < e; ++i) { + var line = this.lines[i]; + this.height -= line.height; + cleanUpLine(line); + signalLater(line, "delete"); + } + this.lines.splice(at, n); + }, + // Helper used to collapse a small branch into a single leaf. + collapse: function(lines) { + lines.push.apply(lines, this.lines); + }, + // Insert the given array of lines at offset 'at', count them as + // having the given height. + insertInner: function(at, lines, height) { + this.height += height; + this.lines = this.lines.slice(0, at).concat(lines).concat(this.lines.slice(at)); + for (var i = 0; i < lines.length; ++i) lines[i].parent = this; + }, + // Used to iterate over a part of the tree. + iterN: function(at, n, op) { + for (var e = at + n; at < e; ++at) + if (op(this.lines[at])) return true; + } + }; + + function BranchChunk(children) { + this.children = children; + var size = 0, height = 0; + for (var i = 0; i < children.length; ++i) { + var ch = children[i]; + size += ch.chunkSize(); height += ch.height; + ch.parent = this; + } + this.size = size; + this.height = height; + this.parent = null; + } + + BranchChunk.prototype = { + chunkSize: function() { return this.size; }, + removeInner: function(at, n) { + this.size -= n; + for (var i = 0; i < this.children.length; ++i) { + var child = this.children[i], sz = child.chunkSize(); + if (at < sz) { + var rm = Math.min(n, sz - at), oldHeight = child.height; + child.removeInner(at, rm); + this.height -= oldHeight - child.height; + if (sz == rm) { this.children.splice(i--, 1); child.parent = null; } + if ((n -= rm) == 0) break; + at = 0; + } else at -= sz; + } + // If the result is smaller than 25 lines, ensure that it is a + // single leaf node. + if (this.size - n < 25 && + (this.children.length > 1 || !(this.children[0] instanceof LeafChunk))) { + var lines = []; + this.collapse(lines); + this.children = [new LeafChunk(lines)]; + this.children[0].parent = this; + } + }, + collapse: function(lines) { + for (var i = 0; i < this.children.length; ++i) this.children[i].collapse(lines); + }, + insertInner: function(at, lines, height) { + this.size += lines.length; + this.height += height; + for (var i = 0; i < this.children.length; ++i) { + var child = this.children[i], sz = child.chunkSize(); + if (at <= sz) { + child.insertInner(at, lines, height); + if (child.lines && child.lines.length > 50) { + while (child.lines.length > 50) { + var spilled = child.lines.splice(child.lines.length - 25, 25); + var newleaf = new LeafChunk(spilled); + child.height -= newleaf.height; + this.children.splice(i + 1, 0, newleaf); + newleaf.parent = this; + } + this.maybeSpill(); + } + break; + } + at -= sz; + } + }, + // When a node has grown, check whether it should be split. + maybeSpill: function() { + if (this.children.length <= 10) return; + var me = this; + do { + var spilled = me.children.splice(me.children.length - 5, 5); + var sibling = new BranchChunk(spilled); + if (!me.parent) { // Become the parent node + var copy = new BranchChunk(me.children); + copy.parent = me; + me.children = [copy, sibling]; + me = copy; + } else { + me.size -= sibling.size; + me.height -= sibling.height; + var myIndex = indexOf(me.parent.children, me); + me.parent.children.splice(myIndex + 1, 0, sibling); + } + sibling.parent = me.parent; + } while (me.children.length > 10); + me.parent.maybeSpill(); + }, + iterN: function(at, n, op) { + for (var i = 0; i < this.children.length; ++i) { + var child = this.children[i], sz = child.chunkSize(); + if (at < sz) { + var used = Math.min(n, sz - at); + if (child.iterN(at, used, op)) return true; + if ((n -= used) == 0) break; + at = 0; + } else at -= sz; + } + } + }; + + var nextDocId = 0; + var Doc = CodeMirror.Doc = function(text, mode, firstLine) { + if (!(this instanceof Doc)) return new Doc(text, mode, firstLine); + if (firstLine == null) firstLine = 0; + + BranchChunk.call(this, [new LeafChunk([new Line("", null)])]); + this.first = firstLine; + this.scrollTop = this.scrollLeft = 0; + this.cantEdit = false; + this.cleanGeneration = 1; + this.frontier = firstLine; + var start = Pos(firstLine, 0); + this.sel = simpleSelection(start); + this.history = new History(null); + this.id = ++nextDocId; + this.modeOption = mode; + + if (typeof text == "string") text = splitLines(text); + updateDoc(this, {from: start, to: start, text: text}); + setSelection(this, simpleSelection(start), sel_dontScroll); + }; + + Doc.prototype = createObj(BranchChunk.prototype, { + constructor: Doc, + // Iterate over the document. Supports two forms -- with only one + // argument, it calls that for each line in the document. With + // three, it iterates over the range given by the first two (with + // the second being non-inclusive). + iter: function(from, to, op) { + if (op) this.iterN(from - this.first, to - from, op); + else this.iterN(this.first, this.first + this.size, from); + }, + + // Non-public interface for adding and removing lines. + insert: function(at, lines) { + var height = 0; + for (var i = 0; i < lines.length; ++i) height += lines[i].height; + this.insertInner(at - this.first, lines, height); + }, + remove: function(at, n) { this.removeInner(at - this.first, n); }, + + // From here, the methods are part of the public interface. Most + // are also available from CodeMirror (editor) instances. + + getValue: function(lineSep) { + var lines = getLines(this, this.first, this.first + this.size); + if (lineSep === false) return lines; + return lines.join(lineSep || "\n"); + }, + setValue: docMethodOp(function(code) { + var top = Pos(this.first, 0), last = this.first + this.size - 1; + makeChange(this, {from: top, to: Pos(last, getLine(this, last).text.length), + text: splitLines(code), origin: "setValue"}, true); + setSelection(this, simpleSelection(top)); + }), + replaceRange: function(code, from, to, origin) { + from = clipPos(this, from); + to = to ? clipPos(this, to) : from; + replaceRange(this, code, from, to, origin); + }, + getRange: function(from, to, lineSep) { + var lines = getBetween(this, clipPos(this, from), clipPos(this, to)); + if (lineSep === false) return lines; + return lines.join(lineSep || "\n"); + }, + + getLine: function(line) {var l = this.getLineHandle(line); return l && l.text;}, + + getLineHandle: function(line) {if (isLine(this, line)) return getLine(this, line);}, + getLineNumber: function(line) {return lineNo(line);}, + + getLineHandleVisualStart: function(line) { + if (typeof line == "number") line = getLine(this, line); + return visualLine(line); + }, + + lineCount: function() {return this.size;}, + firstLine: function() {return this.first;}, + lastLine: function() {return this.first + this.size - 1;}, + + clipPos: function(pos) {return clipPos(this, pos);}, + + getCursor: function(start) { + var range = this.sel.primary(), pos; + if (start == null || start == "head") pos = range.head; + else if (start == "anchor") pos = range.anchor; + else if (start == "end" || start == "to" || start === false) pos = range.to(); + else pos = range.from(); + return pos; + }, + listSelections: function() { return this.sel.ranges; }, + somethingSelected: function() {return this.sel.somethingSelected();}, + + setCursor: docMethodOp(function(line, ch, options) { + setSimpleSelection(this, clipPos(this, typeof line == "number" ? Pos(line, ch || 0) : line), null, options); + }), + setSelection: docMethodOp(function(anchor, head, options) { + setSimpleSelection(this, clipPos(this, anchor), clipPos(this, head || anchor), options); + }), + extendSelection: docMethodOp(function(head, other, options) { + extendSelection(this, clipPos(this, head), other && clipPos(this, other), options); + }), + extendSelections: docMethodOp(function(heads, options) { + extendSelections(this, clipPosArray(this, heads, options)); + }), + extendSelectionsBy: docMethodOp(function(f, options) { + extendSelections(this, map(this.sel.ranges, f), options); + }), + setSelections: docMethodOp(function(ranges, primary, options) { + if (!ranges.length) return; + for (var i = 0, out = []; i < ranges.length; i++) + out[i] = new Range(clipPos(this, ranges[i].anchor), + clipPos(this, ranges[i].head)); + if (primary == null) primary = Math.min(ranges.length - 1, this.sel.primIndex); + setSelection(this, normalizeSelection(out, primary), options); + }), + addSelection: docMethodOp(function(anchor, head, options) { + var ranges = this.sel.ranges.slice(0); + ranges.push(new Range(clipPos(this, anchor), clipPos(this, head || anchor))); + setSelection(this, normalizeSelection(ranges, ranges.length - 1), options); + }), + + getSelection: function(lineSep) { + var ranges = this.sel.ranges, lines; + for (var i = 0; i < ranges.length; i++) { + var sel = getBetween(this, ranges[i].from(), ranges[i].to()); + lines = lines ? lines.concat(sel) : sel; + } + if (lineSep === false) return lines; + else return lines.join(lineSep || "\n"); + }, + getSelections: function(lineSep) { + var parts = [], ranges = this.sel.ranges; + for (var i = 0; i < ranges.length; i++) { + var sel = getBetween(this, ranges[i].from(), ranges[i].to()); + if (lineSep !== false) sel = sel.join(lineSep || "\n"); + parts[i] = sel; + } + return parts; + }, + replaceSelection: function(code, collapse, origin) { + var dup = []; + for (var i = 0; i < this.sel.ranges.length; i++) + dup[i] = code; + this.replaceSelections(dup, collapse, origin || "+input"); + }, + replaceSelections: docMethodOp(function(code, collapse, origin) { + var changes = [], sel = this.sel; + for (var i = 0; i < sel.ranges.length; i++) { + var range = sel.ranges[i]; + changes[i] = {from: range.from(), to: range.to(), text: splitLines(code[i]), origin: origin}; + } + var newSel = collapse && collapse != "end" && computeReplacedSel(this, changes, collapse); + for (var i = changes.length - 1; i >= 0; i--) + makeChange(this, changes[i]); + if (newSel) setSelectionReplaceHistory(this, newSel); + else if (this.cm) ensureCursorVisible(this.cm); + }), + undo: docMethodOp(function() {makeChangeFromHistory(this, "undo");}), + redo: docMethodOp(function() {makeChangeFromHistory(this, "redo");}), + undoSelection: docMethodOp(function() {makeChangeFromHistory(this, "undo", true);}), + redoSelection: docMethodOp(function() {makeChangeFromHistory(this, "redo", true);}), + + setExtending: function(val) {this.extend = val;}, + getExtending: function() {return this.extend;}, + + historySize: function() { + var hist = this.history, done = 0, undone = 0; + for (var i = 0; i < hist.done.length; i++) if (!hist.done[i].ranges) ++done; + for (var i = 0; i < hist.undone.length; i++) if (!hist.undone[i].ranges) ++undone; + return {undo: done, redo: undone}; + }, + clearHistory: function() {this.history = new History(this.history.maxGeneration);}, + + markClean: function() { + this.cleanGeneration = this.changeGeneration(true); + }, + changeGeneration: function(forceSplit) { + if (forceSplit) + this.history.lastOp = this.history.lastOrigin = null; + return this.history.generation; + }, + isClean: function (gen) { + return this.history.generation == (gen || this.cleanGeneration); + }, + + getHistory: function() { + return {done: copyHistoryArray(this.history.done), + undone: copyHistoryArray(this.history.undone)}; + }, + setHistory: function(histData) { + var hist = this.history = new History(this.history.maxGeneration); + hist.done = copyHistoryArray(histData.done.slice(0), null, true); + hist.undone = copyHistoryArray(histData.undone.slice(0), null, true); + }, + + markText: function(from, to, options) { + return markText(this, clipPos(this, from), clipPos(this, to), options, "range"); + }, + setBookmark: function(pos, options) { + var realOpts = {replacedWith: options && (options.nodeType == null ? options.widget : options), + insertLeft: options && options.insertLeft, + clearWhenEmpty: false, shared: options && options.shared}; + pos = clipPos(this, pos); + return markText(this, pos, pos, realOpts, "bookmark"); + }, + findMarksAt: function(pos) { + pos = clipPos(this, pos); + var markers = [], spans = getLine(this, pos.line).markedSpans; + if (spans) for (var i = 0; i < spans.length; ++i) { + var span = spans[i]; + if ((span.from == null || span.from <= pos.ch) && + (span.to == null || span.to >= pos.ch)) + markers.push(span.marker.parent || span.marker); + } + return markers; + }, + findMarks: function(from, to, filter) { + from = clipPos(this, from); to = clipPos(this, to); + var found = [], lineNo = from.line; + this.iter(from.line, to.line + 1, function(line) { + var spans = line.markedSpans; + if (spans) for (var i = 0; i < spans.length; i++) { + var span = spans[i]; + if (!(lineNo == from.line && from.ch > span.to || + span.from == null && lineNo != from.line|| + lineNo == to.line && span.from > to.ch) && + (!filter || filter(span.marker))) + found.push(span.marker.parent || span.marker); + } + ++lineNo; + }); + return found; + }, + getAllMarks: function() { + var markers = []; + this.iter(function(line) { + var sps = line.markedSpans; + if (sps) for (var i = 0; i < sps.length; ++i) + if (sps[i].from != null) markers.push(sps[i].marker); + }); + return markers; + }, + + posFromIndex: function(off) { + var ch, lineNo = this.first; + this.iter(function(line) { + var sz = line.text.length + 1; + if (sz > off) { ch = off; return true; } + off -= sz; + ++lineNo; + }); + return clipPos(this, Pos(lineNo, ch)); + }, + indexFromPos: function (coords) { + coords = clipPos(this, coords); + var index = coords.ch; + if (coords.line < this.first || coords.ch < 0) return 0; + this.iter(this.first, coords.line, function (line) { + index += line.text.length + 1; + }); + return index; + }, + + copy: function(copyHistory) { + var doc = new Doc(getLines(this, this.first, this.first + this.size), this.modeOption, this.first); + doc.scrollTop = this.scrollTop; doc.scrollLeft = this.scrollLeft; + doc.sel = this.sel; + doc.extend = false; + if (copyHistory) { + doc.history.undoDepth = this.history.undoDepth; + doc.setHistory(this.getHistory()); + } + return doc; + }, + + linkedDoc: function(options) { + if (!options) options = {}; + var from = this.first, to = this.first + this.size; + if (options.from != null && options.from > from) from = options.from; + if (options.to != null && options.to < to) to = options.to; + var copy = new Doc(getLines(this, from, to), options.mode || this.modeOption, from); + if (options.sharedHist) copy.history = this.history; + (this.linked || (this.linked = [])).push({doc: copy, sharedHist: options.sharedHist}); + copy.linked = [{doc: this, isParent: true, sharedHist: options.sharedHist}]; + copySharedMarkers(copy, findSharedMarkers(this)); + return copy; + }, + unlinkDoc: function(other) { + if (other instanceof CodeMirror) other = other.doc; + if (this.linked) for (var i = 0; i < this.linked.length; ++i) { + var link = this.linked[i]; + if (link.doc != other) continue; + this.linked.splice(i, 1); + other.unlinkDoc(this); + detachSharedMarkers(findSharedMarkers(this)); + break; + } + // If the histories were shared, split them again + if (other.history == this.history) { + var splitIds = [other.id]; + linkedDocs(other, function(doc) {splitIds.push(doc.id);}, true); + other.history = new History(null); + other.history.done = copyHistoryArray(this.history.done, splitIds); + other.history.undone = copyHistoryArray(this.history.undone, splitIds); + } + }, + iterLinkedDocs: function(f) {linkedDocs(this, f);}, + + getMode: function() {return this.mode;}, + getEditor: function() {return this.cm;} + }); + + // Public alias. + Doc.prototype.eachLine = Doc.prototype.iter; + + // Set up methods on CodeMirror's prototype to redirect to the editor's document. + var dontDelegate = "iter insert remove copy getEditor".split(" "); + for (var prop in Doc.prototype) if (Doc.prototype.hasOwnProperty(prop) && indexOf(dontDelegate, prop) < 0) + CodeMirror.prototype[prop] = (function(method) { + return function() {return method.apply(this.doc, arguments);}; + })(Doc.prototype[prop]); + + eventMixin(Doc); + + // Call f for all linked documents. + function linkedDocs(doc, f, sharedHistOnly) { + function propagate(doc, skip, sharedHist) { + if (doc.linked) for (var i = 0; i < doc.linked.length; ++i) { + var rel = doc.linked[i]; + if (rel.doc == skip) continue; + var shared = sharedHist && rel.sharedHist; + if (sharedHistOnly && !shared) continue; + f(rel.doc, shared); + propagate(rel.doc, doc, shared); + } + } + propagate(doc, null, true); + } + + // Attach a document to an editor. + function attachDoc(cm, doc) { + if (doc.cm) throw new Error("This document is already in use."); + cm.doc = doc; + doc.cm = cm; + estimateLineHeights(cm); + loadMode(cm); + if (!cm.options.lineWrapping) findMaxLine(cm); + cm.options.mode = doc.modeOption; + regChange(cm); + } + + // LINE UTILITIES + + // Find the line object corresponding to the given line number. + function getLine(doc, n) { + n -= doc.first; + if (n < 0 || n >= doc.size) throw new Error("There is no line " + (n + doc.first) + " in the document."); + for (var chunk = doc; !chunk.lines;) { + for (var i = 0;; ++i) { + var child = chunk.children[i], sz = child.chunkSize(); + if (n < sz) { chunk = child; break; } + n -= sz; + } + } + return chunk.lines[n]; + } + + // Get the part of a document between two positions, as an array of + // strings. + function getBetween(doc, start, end) { + var out = [], n = start.line; + doc.iter(start.line, end.line + 1, function(line) { + var text = line.text; + if (n == end.line) text = text.slice(0, end.ch); + if (n == start.line) text = text.slice(start.ch); + out.push(text); + ++n; + }); + return out; + } + // Get the lines between from and to, as array of strings. + function getLines(doc, from, to) { + var out = []; + doc.iter(from, to, function(line) { out.push(line.text); }); + return out; + } + + // Update the height of a line, propagating the height change + // upwards to parent nodes. + function updateLineHeight(line, height) { + var diff = height - line.height; + if (diff) for (var n = line; n; n = n.parent) n.height += diff; + } + + // Given a line object, find its line number by walking up through + // its parent links. + function lineNo(line) { + if (line.parent == null) return null; + var cur = line.parent, no = indexOf(cur.lines, line); + for (var chunk = cur.parent; chunk; cur = chunk, chunk = chunk.parent) { + for (var i = 0;; ++i) { + if (chunk.children[i] == cur) break; + no += chunk.children[i].chunkSize(); + } + } + return no + cur.first; + } + + // Find the line at the given vertical position, using the height + // information in the document tree. + function lineAtHeight(chunk, h) { + var n = chunk.first; + outer: do { + for (var i = 0; i < chunk.children.length; ++i) { + var child = chunk.children[i], ch = child.height; + if (h < ch) { chunk = child; continue outer; } + h -= ch; + n += child.chunkSize(); + } + return n; + } while (!chunk.lines); + for (var i = 0; i < chunk.lines.length; ++i) { + var line = chunk.lines[i], lh = line.height; + if (h < lh) break; + h -= lh; + } + return n + i; + } + + + // Find the height above the given line. + function heightAtLine(lineObj) { + lineObj = visualLine(lineObj); + + var h = 0, chunk = lineObj.parent; + for (var i = 0; i < chunk.lines.length; ++i) { + var line = chunk.lines[i]; + if (line == lineObj) break; + else h += line.height; + } + for (var p = chunk.parent; p; chunk = p, p = chunk.parent) { + for (var i = 0; i < p.children.length; ++i) { + var cur = p.children[i]; + if (cur == chunk) break; + else h += cur.height; + } + } + return h; + } + + // Get the bidi ordering for the given line (and cache it). Returns + // false for lines that are fully left-to-right, and an array of + // BidiSpan objects otherwise. + function getOrder(line) { + var order = line.order; + if (order == null) order = line.order = bidiOrdering(line.text); + return order; + } + + // HISTORY + + function History(startGen) { + // Arrays of change events and selections. Doing something adds an + // event to done and clears undo. Undoing moves events from done + // to undone, redoing moves them in the other direction. + this.done = []; this.undone = []; + this.undoDepth = Infinity; + // Used to track when changes can be merged into a single undo + // event + this.lastModTime = this.lastSelTime = 0; + this.lastOp = null; + this.lastOrigin = this.lastSelOrigin = null; + // Used by the isClean() method + this.generation = this.maxGeneration = startGen || 1; + } + + // Create a history change event from an updateDoc-style change + // object. + function historyChangeFromChange(doc, change) { + var histChange = {from: copyPos(change.from), to: changeEnd(change), text: getBetween(doc, change.from, change.to)}; + attachLocalSpans(doc, histChange, change.from.line, change.to.line + 1); + linkedDocs(doc, function(doc) {attachLocalSpans(doc, histChange, change.from.line, change.to.line + 1);}, true); + return histChange; + } + + // Pop all selection events off the end of a history array. Stop at + // a change event. + function clearSelectionEvents(array) { + while (array.length) { + var last = lst(array); + if (last.ranges) array.pop(); + else break; + } + } + + // Find the top change event in the history. Pop off selection + // events that are in the way. + function lastChangeEvent(hist, force) { + if (force) { + clearSelectionEvents(hist.done); + return lst(hist.done); + } else if (hist.done.length && !lst(hist.done).ranges) { + return lst(hist.done); + } else if (hist.done.length > 1 && !hist.done[hist.done.length - 2].ranges) { + hist.done.pop(); + return lst(hist.done); + } + } + + // Register a change in the history. Merges changes that are within + // a single operation, ore are close together with an origin that + // allows merging (starting with "+") into a single event. + function addChangeToHistory(doc, change, selAfter, opId) { + var hist = doc.history; + hist.undone.length = 0; + var time = +new Date, cur; + + if ((hist.lastOp == opId || + hist.lastOrigin == change.origin && change.origin && + ((change.origin.charAt(0) == "+" && doc.cm && hist.lastModTime > time - doc.cm.options.historyEventDelay) || + change.origin.charAt(0) == "*")) && + (cur = lastChangeEvent(hist, hist.lastOp == opId))) { + // Merge this change into the last event + var last = lst(cur.changes); + if (cmp(change.from, change.to) == 0 && cmp(change.from, last.to) == 0) { + // Optimized case for simple insertion -- don't want to add + // new changesets for every character typed + last.to = changeEnd(change); + } else { + // Add new sub-event + cur.changes.push(historyChangeFromChange(doc, change)); + } + } else { + // Can not be merged, start a new event. + var before = lst(hist.done); + if (!before || !before.ranges) + pushSelectionToHistory(doc.sel, hist.done); + cur = {changes: [historyChangeFromChange(doc, change)], + generation: hist.generation}; + hist.done.push(cur); + while (hist.done.length > hist.undoDepth) { + hist.done.shift(); + if (!hist.done[0].ranges) hist.done.shift(); + } + } + hist.done.push(selAfter); + hist.generation = ++hist.maxGeneration; + hist.lastModTime = hist.lastSelTime = time; + hist.lastOp = opId; + hist.lastOrigin = hist.lastSelOrigin = change.origin; + + if (!last) signal(doc, "historyAdded"); + } + + function selectionEventCanBeMerged(doc, origin, prev, sel) { + var ch = origin.charAt(0); + return ch == "*" || + ch == "+" && + prev.ranges.length == sel.ranges.length && + prev.somethingSelected() == sel.somethingSelected() && + new Date - doc.history.lastSelTime <= (doc.cm ? doc.cm.options.historyEventDelay : 500); + } + + // Called whenever the selection changes, sets the new selection as + // the pending selection in the history, and pushes the old pending + // selection into the 'done' array when it was significantly + // different (in number of selected ranges, emptiness, or time). + function addSelectionToHistory(doc, sel, opId, options) { + var hist = doc.history, origin = options && options.origin; + + // A new event is started when the previous origin does not match + // the current, or the origins don't allow matching. Origins + // starting with * are always merged, those starting with + are + // merged when similar and close together in time. + if (opId == hist.lastOp || + (origin && hist.lastSelOrigin == origin && + (hist.lastModTime == hist.lastSelTime && hist.lastOrigin == origin || + selectionEventCanBeMerged(doc, origin, lst(hist.done), sel)))) + hist.done[hist.done.length - 1] = sel; + else + pushSelectionToHistory(sel, hist.done); + + hist.lastSelTime = +new Date; + hist.lastSelOrigin = origin; + hist.lastOp = opId; + if (options && options.clearRedo !== false) + clearSelectionEvents(hist.undone); + } + + function pushSelectionToHistory(sel, dest) { + var top = lst(dest); + if (!(top && top.ranges && top.equals(sel))) + dest.push(sel); + } + + // Used to store marked span information in the history. + function attachLocalSpans(doc, change, from, to) { + var existing = change["spans_" + doc.id], n = 0; + doc.iter(Math.max(doc.first, from), Math.min(doc.first + doc.size, to), function(line) { + if (line.markedSpans) + (existing || (existing = change["spans_" + doc.id] = {}))[n] = line.markedSpans; + ++n; + }); + } + + // When un/re-doing restores text containing marked spans, those + // that have been explicitly cleared should not be restored. + function removeClearedSpans(spans) { + if (!spans) return null; + for (var i = 0, out; i < spans.length; ++i) { + if (spans[i].marker.explicitlyCleared) { if (!out) out = spans.slice(0, i); } + else if (out) out.push(spans[i]); + } + return !out ? spans : out.length ? out : null; + } + + // Retrieve and filter the old marked spans stored in a change event. + function getOldSpans(doc, change) { + var found = change["spans_" + doc.id]; + if (!found) return null; + for (var i = 0, nw = []; i < change.text.length; ++i) + nw.push(removeClearedSpans(found[i])); + return nw; + } + + // Used both to provide a JSON-safe object in .getHistory, and, when + // detaching a document, to split the history in two + function copyHistoryArray(events, newGroup, instantiateSel) { + for (var i = 0, copy = []; i < events.length; ++i) { + var event = events[i]; + if (event.ranges) { + copy.push(instantiateSel ? Selection.prototype.deepCopy.call(event) : event); + continue; + } + var changes = event.changes, newChanges = []; + copy.push({changes: newChanges}); + for (var j = 0; j < changes.length; ++j) { + var change = changes[j], m; + newChanges.push({from: change.from, to: change.to, text: change.text}); + if (newGroup) for (var prop in change) if (m = prop.match(/^spans_(\d+)$/)) { + if (indexOf(newGroup, Number(m[1])) > -1) { + lst(newChanges)[prop] = change[prop]; + delete change[prop]; + } + } + } + } + return copy; + } + + // Rebasing/resetting history to deal with externally-sourced changes + + function rebaseHistSelSingle(pos, from, to, diff) { + if (to < pos.line) { + pos.line += diff; + } else if (from < pos.line) { + pos.line = from; + pos.ch = 0; + } + } + + // Tries to rebase an array of history events given a change in the + // document. If the change touches the same lines as the event, the + // event, and everything 'behind' it, is discarded. If the change is + // before the event, the event's positions are updated. Uses a + // copy-on-write scheme for the positions, to avoid having to + // reallocate them all on every rebase, but also avoid problems with + // shared position objects being unsafely updated. + function rebaseHistArray(array, from, to, diff) { + for (var i = 0; i < array.length; ++i) { + var sub = array[i], ok = true; + if (sub.ranges) { + if (!sub.copied) { sub = array[i] = sub.deepCopy(); sub.copied = true; } + for (var j = 0; j < sub.ranges.length; j++) { + rebaseHistSelSingle(sub.ranges[j].anchor, from, to, diff); + rebaseHistSelSingle(sub.ranges[j].head, from, to, diff); + } + continue; + } + for (var j = 0; j < sub.changes.length; ++j) { + var cur = sub.changes[j]; + if (to < cur.from.line) { + cur.from = Pos(cur.from.line + diff, cur.from.ch); + cur.to = Pos(cur.to.line + diff, cur.to.ch); + } else if (from <= cur.to.line) { + ok = false; + break; + } + } + if (!ok) { + array.splice(0, i + 1); + i = 0; + } + } + } + + function rebaseHist(hist, change) { + var from = change.from.line, to = change.to.line, diff = change.text.length - (to - from) - 1; + rebaseHistArray(hist.done, from, to, diff); + rebaseHistArray(hist.undone, from, to, diff); + } + + // EVENT UTILITIES + + // Due to the fact that we still support jurassic IE versions, some + // compatibility wrappers are needed. + + var e_preventDefault = CodeMirror.e_preventDefault = function(e) { + if (e.preventDefault) e.preventDefault(); + else e.returnValue = false; + }; + var e_stopPropagation = CodeMirror.e_stopPropagation = function(e) { + if (e.stopPropagation) e.stopPropagation(); + else e.cancelBubble = true; + }; + function e_defaultPrevented(e) { + return e.defaultPrevented != null ? e.defaultPrevented : e.returnValue == false; + } + var e_stop = CodeMirror.e_stop = function(e) {e_preventDefault(e); e_stopPropagation(e);}; + + function e_target(e) {return e.target || e.srcElement;} + function e_button(e) { + var b = e.which; + if (b == null) { + if (e.button & 1) b = 1; + else if (e.button & 2) b = 3; + else if (e.button & 4) b = 2; + } + if (mac && e.ctrlKey && b == 1) b = 3; + return b; + } + + // EVENT HANDLING + + // Lightweight event framework. on/off also work on DOM nodes, + // registering native DOM handlers. + + var on = CodeMirror.on = function(emitter, type, f) { + if (emitter.addEventListener) + emitter.addEventListener(type, f, false); + else if (emitter.attachEvent) + emitter.attachEvent("on" + type, f); + else { + var map = emitter._handlers || (emitter._handlers = {}); + var arr = map[type] || (map[type] = []); + arr.push(f); + } + }; + + var off = CodeMirror.off = function(emitter, type, f) { + if (emitter.removeEventListener) + emitter.removeEventListener(type, f, false); + else if (emitter.detachEvent) + emitter.detachEvent("on" + type, f); + else { + var arr = emitter._handlers && emitter._handlers[type]; + if (!arr) return; + for (var i = 0; i < arr.length; ++i) + if (arr[i] == f) { arr.splice(i, 1); break; } + } + }; + + var signal = CodeMirror.signal = function(emitter, type /*, values...*/) { + var arr = emitter._handlers && emitter._handlers[type]; + if (!arr) return; + var args = Array.prototype.slice.call(arguments, 2); + for (var i = 0; i < arr.length; ++i) arr[i].apply(null, args); + }; + + // Often, we want to signal events at a point where we are in the + // middle of some work, but don't want the handler to start calling + // other methods on the editor, which might be in an inconsistent + // state or simply not expect any other events to happen. + // signalLater looks whether there are any handlers, and schedules + // them to be executed when the last operation ends, or, if no + // operation is active, when a timeout fires. + var delayedCallbacks, delayedCallbackDepth = 0; + function signalLater(emitter, type /*, values...*/) { + var arr = emitter._handlers && emitter._handlers[type]; + if (!arr) return; + var args = Array.prototype.slice.call(arguments, 2); + if (!delayedCallbacks) { + ++delayedCallbackDepth; + delayedCallbacks = []; + setTimeout(fireDelayed, 0); + } + function bnd(f) {return function(){f.apply(null, args);};}; + for (var i = 0; i < arr.length; ++i) + delayedCallbacks.push(bnd(arr[i])); + } + + function fireDelayed() { + --delayedCallbackDepth; + var delayed = delayedCallbacks; + delayedCallbacks = null; + for (var i = 0; i < delayed.length; ++i) delayed[i](); + } + + // The DOM events that CodeMirror handles can be overridden by + // registering a (non-DOM) handler on the editor for the event name, + // and preventDefault-ing the event in that handler. + function signalDOMEvent(cm, e, override) { + signal(cm, override || e.type, cm, e); + return e_defaultPrevented(e) || e.codemirrorIgnore; + } + + function signalCursorActivity(cm) { + var arr = cm._handlers && cm._handlers.cursorActivity; + if (!arr) return; + var set = cm.curOp.cursorActivityHandlers || (cm.curOp.cursorActivityHandlers = []); + for (var i = 0; i < arr.length; ++i) if (indexOf(set, arr[i]) == -1) + set.push(arr[i]); + } + + function hasHandler(emitter, type) { + var arr = emitter._handlers && emitter._handlers[type]; + return arr && arr.length > 0; + } + + // Add on and off methods to a constructor's prototype, to make + // registering events on such objects more convenient. + function eventMixin(ctor) { + ctor.prototype.on = function(type, f) {on(this, type, f);}; + ctor.prototype.off = function(type, f) {off(this, type, f);}; + } + + // MISC UTILITIES + + // Number of pixels added to scroller and sizer to hide scrollbar + var scrollerCutOff = 30; + + // Returned or thrown by various protocols to signal 'I'm not + // handling this'. + var Pass = CodeMirror.Pass = {toString: function(){return "CodeMirror.Pass";}}; + + // Reused option objects for setSelection & friends + var sel_dontScroll = {scroll: false}, sel_mouse = {origin: "*mouse"}, sel_move = {origin: "+move"}; + + function Delayed() {this.id = null;} + Delayed.prototype.set = function(ms, f) { + clearTimeout(this.id); + this.id = setTimeout(f, ms); + }; + + // Counts the column offset in a string, taking tabs into account. + // Used mostly to find indentation. + var countColumn = CodeMirror.countColumn = function(string, end, tabSize, startIndex, startValue) { + if (end == null) { + end = string.search(/[^\s\u00a0]/); + if (end == -1) end = string.length; + } + for (var i = startIndex || 0, n = startValue || 0;;) { + var nextTab = string.indexOf("\t", i); + if (nextTab < 0 || nextTab >= end) + return n + (end - i); + n += nextTab - i; + n += tabSize - (n % tabSize); + i = nextTab + 1; + } + }; + + // The inverse of countColumn -- find the offset that corresponds to + // a particular column. + function findColumn(string, goal, tabSize) { + for (var pos = 0, col = 0;;) { + var nextTab = string.indexOf("\t", pos); + if (nextTab == -1) nextTab = string.length; + var skipped = nextTab - pos; + if (nextTab == string.length || col + skipped >= goal) + return pos + Math.min(skipped, goal - col); + col += nextTab - pos; + col += tabSize - (col % tabSize); + pos = nextTab + 1; + if (col >= goal) return pos; + } + } + + var spaceStrs = [""]; + function spaceStr(n) { + while (spaceStrs.length <= n) + spaceStrs.push(lst(spaceStrs) + " "); + return spaceStrs[n]; + } + + function lst(arr) { return arr[arr.length-1]; } + + var selectInput = function(node) { node.select(); }; + if (ios) // Mobile Safari apparently has a bug where select() is broken. + selectInput = function(node) { node.selectionStart = 0; node.selectionEnd = node.value.length; }; + else if (ie) // Suppress mysterious IE10 errors + selectInput = function(node) { try { node.select(); } catch(_e) {} }; + + function indexOf(array, elt) { + for (var i = 0; i < array.length; ++i) + if (array[i] == elt) return i; + return -1; + } + if ([].indexOf) indexOf = function(array, elt) { return array.indexOf(elt); }; + function map(array, f) { + var out = []; + for (var i = 0; i < array.length; i++) out[i] = f(array[i], i); + return out; + } + if ([].map) map = function(array, f) { return array.map(f); }; + + function createObj(base, props) { + var inst; + if (Object.create) { + inst = Object.create(base); + } else { + var ctor = function() {}; + ctor.prototype = base; + inst = new ctor(); + } + if (props) copyObj(props, inst); + return inst; + }; + + function copyObj(obj, target, overwrite) { + if (!target) target = {}; + for (var prop in obj) + if (obj.hasOwnProperty(prop) && (overwrite !== false || !target.hasOwnProperty(prop))) + target[prop] = obj[prop]; + return target; + } + + function bind(f) { + var args = Array.prototype.slice.call(arguments, 1); + return function(){return f.apply(null, args);}; + } + + var nonASCIISingleCaseWordChar = /[\u00df\u3040-\u309f\u30a0-\u30ff\u3400-\u4db5\u4e00-\u9fcc\uac00-\ud7af]/; + var isWordCharBasic = CodeMirror.isWordChar = function(ch) { + return /\w/.test(ch) || ch > "\x80" && + (ch.toUpperCase() != ch.toLowerCase() || nonASCIISingleCaseWordChar.test(ch)); + }; + function isWordChar(ch, helper) { + if (!helper) return isWordCharBasic(ch); + if (helper.source.indexOf("\\w") > -1 && isWordCharBasic(ch)) return true; + return helper.test(ch); + } + + function isEmpty(obj) { + for (var n in obj) if (obj.hasOwnProperty(n) && obj[n]) return false; + return true; + } + + // Extending unicode characters. A series of a non-extending char + + // any number of extending chars is treated as a single unit as far + // as editing and measuring is concerned. This is not fully correct, + // since some scripts/fonts/browsers also treat other configurations + // of code points as a group. + var extendingChars = /[\u0300-\u036f\u0483-\u0489\u0591-\u05bd\u05bf\u05c1\u05c2\u05c4\u05c5\u05c7\u0610-\u061a\u064b-\u065e\u0670\u06d6-\u06dc\u06de-\u06e4\u06e7\u06e8\u06ea-\u06ed\u0711\u0730-\u074a\u07a6-\u07b0\u07eb-\u07f3\u0816-\u0819\u081b-\u0823\u0825-\u0827\u0829-\u082d\u0900-\u0902\u093c\u0941-\u0948\u094d\u0951-\u0955\u0962\u0963\u0981\u09bc\u09be\u09c1-\u09c4\u09cd\u09d7\u09e2\u09e3\u0a01\u0a02\u0a3c\u0a41\u0a42\u0a47\u0a48\u0a4b-\u0a4d\u0a51\u0a70\u0a71\u0a75\u0a81\u0a82\u0abc\u0ac1-\u0ac5\u0ac7\u0ac8\u0acd\u0ae2\u0ae3\u0b01\u0b3c\u0b3e\u0b3f\u0b41-\u0b44\u0b4d\u0b56\u0b57\u0b62\u0b63\u0b82\u0bbe\u0bc0\u0bcd\u0bd7\u0c3e-\u0c40\u0c46-\u0c48\u0c4a-\u0c4d\u0c55\u0c56\u0c62\u0c63\u0cbc\u0cbf\u0cc2\u0cc6\u0ccc\u0ccd\u0cd5\u0cd6\u0ce2\u0ce3\u0d3e\u0d41-\u0d44\u0d4d\u0d57\u0d62\u0d63\u0dca\u0dcf\u0dd2-\u0dd4\u0dd6\u0ddf\u0e31\u0e34-\u0e3a\u0e47-\u0e4e\u0eb1\u0eb4-\u0eb9\u0ebb\u0ebc\u0ec8-\u0ecd\u0f18\u0f19\u0f35\u0f37\u0f39\u0f71-\u0f7e\u0f80-\u0f84\u0f86\u0f87\u0f90-\u0f97\u0f99-\u0fbc\u0fc6\u102d-\u1030\u1032-\u1037\u1039\u103a\u103d\u103e\u1058\u1059\u105e-\u1060\u1071-\u1074\u1082\u1085\u1086\u108d\u109d\u135f\u1712-\u1714\u1732-\u1734\u1752\u1753\u1772\u1773\u17b7-\u17bd\u17c6\u17c9-\u17d3\u17dd\u180b-\u180d\u18a9\u1920-\u1922\u1927\u1928\u1932\u1939-\u193b\u1a17\u1a18\u1a56\u1a58-\u1a5e\u1a60\u1a62\u1a65-\u1a6c\u1a73-\u1a7c\u1a7f\u1b00-\u1b03\u1b34\u1b36-\u1b3a\u1b3c\u1b42\u1b6b-\u1b73\u1b80\u1b81\u1ba2-\u1ba5\u1ba8\u1ba9\u1c2c-\u1c33\u1c36\u1c37\u1cd0-\u1cd2\u1cd4-\u1ce0\u1ce2-\u1ce8\u1ced\u1dc0-\u1de6\u1dfd-\u1dff\u200c\u200d\u20d0-\u20f0\u2cef-\u2cf1\u2de0-\u2dff\u302a-\u302f\u3099\u309a\ua66f-\ua672\ua67c\ua67d\ua6f0\ua6f1\ua802\ua806\ua80b\ua825\ua826\ua8c4\ua8e0-\ua8f1\ua926-\ua92d\ua947-\ua951\ua980-\ua982\ua9b3\ua9b6-\ua9b9\ua9bc\uaa29-\uaa2e\uaa31\uaa32\uaa35\uaa36\uaa43\uaa4c\uaab0\uaab2-\uaab4\uaab7\uaab8\uaabe\uaabf\uaac1\uabe5\uabe8\uabed\udc00-\udfff\ufb1e\ufe00-\ufe0f\ufe20-\ufe26\uff9e\uff9f]/; + function isExtendingChar(ch) { return ch.charCodeAt(0) >= 768 && extendingChars.test(ch); } + + // DOM UTILITIES + + function elt(tag, content, className, style) { + var e = document.createElement(tag); + if (className) e.className = className; + if (style) e.style.cssText = style; + if (typeof content == "string") e.appendChild(document.createTextNode(content)); + else if (content) for (var i = 0; i < content.length; ++i) e.appendChild(content[i]); + return e; + } + + var range; + if (document.createRange) range = function(node, start, end) { + var r = document.createRange(); + r.setEnd(node, end); + r.setStart(node, start); + return r; + }; + else range = function(node, start, end) { + var r = document.body.createTextRange(); + r.moveToElementText(node.parentNode); + r.collapse(true); + r.moveEnd("character", end); + r.moveStart("character", start); + return r; + }; + + function removeChildren(e) { + for (var count = e.childNodes.length; count > 0; --count) + e.removeChild(e.firstChild); + return e; + } + + function removeChildrenAndAdd(parent, e) { + return removeChildren(parent).appendChild(e); + } + + function contains(parent, child) { + if (parent.contains) + return parent.contains(child); + while (child = child.parentNode) + if (child == parent) return true; + } + + function activeElt() { return document.activeElement; } + // Older versions of IE throws unspecified error when touching + // document.activeElement in some cases (during loading, in iframe) + if (ie_upto10) activeElt = function() { + try { return document.activeElement; } + catch(e) { return document.body; } + }; + + function classTest(cls) { return new RegExp("\\b" + cls + "\\b\\s*"); } + function rmClass(node, cls) { + var test = classTest(cls); + if (test.test(node.className)) node.className = node.className.replace(test, ""); + } + function addClass(node, cls) { + if (!classTest(cls).test(node.className)) node.className += " " + cls; + } + function joinClasses(a, b) { + var as = a.split(" "); + for (var i = 0; i < as.length; i++) + if (as[i] && !classTest(as[i]).test(b)) b += " " + as[i]; + return b; + } + + // WINDOW-WIDE EVENTS + + // These must be handled carefully, because naively registering a + // handler for each editor will cause the editors to never be + // garbage collected. + + function forEachCodeMirror(f) { + if (!document.body.getElementsByClassName) return; + var byClass = document.body.getElementsByClassName("CodeMirror"); + for (var i = 0; i < byClass.length; i++) { + var cm = byClass[i].CodeMirror; + if (cm) f(cm); + } + } + + var globalsRegistered = false; + function ensureGlobalHandlers() { + if (globalsRegistered) return; + registerGlobalHandlers(); + globalsRegistered = true; + } + function registerGlobalHandlers() { + // When the window resizes, we need to refresh active editors. + var resizeTimer; + on(window, "resize", function() { + if (resizeTimer == null) resizeTimer = setTimeout(function() { + resizeTimer = null; + knownScrollbarWidth = null; + forEachCodeMirror(onResize); + }, 100); + }); + // When the window loses focus, we want to show the editor as blurred + on(window, "blur", function() { + forEachCodeMirror(onBlur); + }); + } + + // FEATURE DETECTION + + // Detect drag-and-drop + var dragAndDrop = function() { + // There is *some* kind of drag-and-drop support in IE6-8, but I + // couldn't get it to work yet. + if (ie_upto8) return false; + var div = elt('div'); + return "draggable" in div || "dragDrop" in div; + }(); + + var knownScrollbarWidth; + function scrollbarWidth(measure) { + if (knownScrollbarWidth != null) return knownScrollbarWidth; + var test = elt("div", null, null, "width: 50px; height: 50px; overflow-x: scroll"); + removeChildrenAndAdd(measure, test); + if (test.offsetWidth) + knownScrollbarWidth = test.offsetHeight - test.clientHeight; + return knownScrollbarWidth || 0; + } + + var zwspSupported; + function zeroWidthElement(measure) { + if (zwspSupported == null) { + var test = elt("span", "\u200b"); + removeChildrenAndAdd(measure, elt("span", [test, document.createTextNode("x")])); + if (measure.firstChild.offsetHeight != 0) + zwspSupported = test.offsetWidth <= 1 && test.offsetHeight > 2 && !ie_upto7; + } + if (zwspSupported) return elt("span", "\u200b"); + else return elt("span", "\u00a0", null, "display: inline-block; width: 1px; margin-right: -1px"); + } + + // Feature-detect IE's crummy client rect reporting for bidi text + var badBidiRects; + function hasBadBidiRects(measure) { + if (badBidiRects != null) return badBidiRects; + var txt = removeChildrenAndAdd(measure, document.createTextNode("A\u062eA")); + var r0 = range(txt, 0, 1).getBoundingClientRect(); + if (r0.left == r0.right) return false; + var r1 = range(txt, 1, 2).getBoundingClientRect(); + return badBidiRects = (r1.right - r0.right < 3); + } + + // See if "".split is the broken IE version, if so, provide an + // alternative way to split lines. + var splitLines = CodeMirror.splitLines = "\n\nb".split(/\n/).length != 3 ? function(string) { + var pos = 0, result = [], l = string.length; + while (pos <= l) { + var nl = string.indexOf("\n", pos); + if (nl == -1) nl = string.length; + var line = string.slice(pos, string.charAt(nl - 1) == "\r" ? nl - 1 : nl); + var rt = line.indexOf("\r"); + if (rt != -1) { + result.push(line.slice(0, rt)); + pos += rt + 1; + } else { + result.push(line); + pos = nl + 1; + } + } + return result; + } : function(string){return string.split(/\r\n?|\n/);}; + + var hasSelection = window.getSelection ? function(te) { + try { return te.selectionStart != te.selectionEnd; } + catch(e) { return false; } + } : function(te) { + try {var range = te.ownerDocument.selection.createRange();} + catch(e) {} + if (!range || range.parentElement() != te) return false; + return range.compareEndPoints("StartToEnd", range) != 0; + }; + + var hasCopyEvent = (function() { + var e = elt("div"); + if ("oncopy" in e) return true; + e.setAttribute("oncopy", "return;"); + return typeof e.oncopy == "function"; + })(); + + // KEY NAMES + + var keyNames = {3: "Enter", 8: "Backspace", 9: "Tab", 13: "Enter", 16: "Shift", 17: "Ctrl", 18: "Alt", + 19: "Pause", 20: "CapsLock", 27: "Esc", 32: "Space", 33: "PageUp", 34: "PageDown", 35: "End", + 36: "Home", 37: "Left", 38: "Up", 39: "Right", 40: "Down", 44: "PrintScrn", 45: "Insert", + 46: "Delete", 59: ";", 61: "=", 91: "Mod", 92: "Mod", 93: "Mod", 107: "=", 109: "-", 127: "Delete", + 173: "-", 186: ";", 187: "=", 188: ",", 189: "-", 190: ".", 191: "/", 192: "`", 219: "[", 220: "\\", + 221: "]", 222: "'", 63232: "Up", 63233: "Down", 63234: "Left", 63235: "Right", 63272: "Delete", + 63273: "Home", 63275: "End", 63276: "PageUp", 63277: "PageDown", 63302: "Insert"}; + CodeMirror.keyNames = keyNames; + (function() { + // Number keys + for (var i = 0; i < 10; i++) keyNames[i + 48] = keyNames[i + 96] = String(i); + // Alphabetic keys + for (var i = 65; i <= 90; i++) keyNames[i] = String.fromCharCode(i); + // Function keys + for (var i = 1; i <= 12; i++) keyNames[i + 111] = keyNames[i + 63235] = "F" + i; + })(); + + // BIDI HELPERS + + function iterateBidiSections(order, from, to, f) { + if (!order) return f(from, to, "ltr"); + var found = false; + for (var i = 0; i < order.length; ++i) { + var part = order[i]; + if (part.from < to && part.to > from || from == to && part.to == from) { + f(Math.max(part.from, from), Math.min(part.to, to), part.level == 1 ? "rtl" : "ltr"); + found = true; + } + } + if (!found) f(from, to, "ltr"); + } + + function bidiLeft(part) { return part.level % 2 ? part.to : part.from; } + function bidiRight(part) { return part.level % 2 ? part.from : part.to; } + + function lineLeft(line) { var order = getOrder(line); return order ? bidiLeft(order[0]) : 0; } + function lineRight(line) { + var order = getOrder(line); + if (!order) return line.text.length; + return bidiRight(lst(order)); + } + + function lineStart(cm, lineN) { + var line = getLine(cm.doc, lineN); + var visual = visualLine(line); + if (visual != line) lineN = lineNo(visual); + var order = getOrder(visual); + var ch = !order ? 0 : order[0].level % 2 ? lineRight(visual) : lineLeft(visual); + return Pos(lineN, ch); + } + function lineEnd(cm, lineN) { + var merged, line = getLine(cm.doc, lineN); + while (merged = collapsedSpanAtEnd(line)) { + line = merged.find(1, true).line; + lineN = null; + } + var order = getOrder(line); + var ch = !order ? line.text.length : order[0].level % 2 ? lineLeft(line) : lineRight(line); + return Pos(lineN == null ? lineNo(line) : lineN, ch); + } + + function compareBidiLevel(order, a, b) { + var linedir = order[0].level; + if (a == linedir) return true; + if (b == linedir) return false; + return a < b; + } + var bidiOther; + function getBidiPartAt(order, pos) { + bidiOther = null; + for (var i = 0, found; i < order.length; ++i) { + var cur = order[i]; + if (cur.from < pos && cur.to > pos) return i; + if ((cur.from == pos || cur.to == pos)) { + if (found == null) { + found = i; + } else if (compareBidiLevel(order, cur.level, order[found].level)) { + if (cur.from != cur.to) bidiOther = found; + return i; + } else { + if (cur.from != cur.to) bidiOther = i; + return found; + } + } + } + return found; + } + + function moveInLine(line, pos, dir, byUnit) { + if (!byUnit) return pos + dir; + do pos += dir; + while (pos > 0 && isExtendingChar(line.text.charAt(pos))); + return pos; + } + + // This is needed in order to move 'visually' through bi-directional + // text -- i.e., pressing left should make the cursor go left, even + // when in RTL text. The tricky part is the 'jumps', where RTL and + // LTR text touch each other. This often requires the cursor offset + // to move more than one unit, in order to visually move one unit. + function moveVisually(line, start, dir, byUnit) { + var bidi = getOrder(line); + if (!bidi) return moveLogically(line, start, dir, byUnit); + var pos = getBidiPartAt(bidi, start), part = bidi[pos]; + var target = moveInLine(line, start, part.level % 2 ? -dir : dir, byUnit); + + for (;;) { + if (target > part.from && target < part.to) return target; + if (target == part.from || target == part.to) { + if (getBidiPartAt(bidi, target) == pos) return target; + part = bidi[pos += dir]; + return (dir > 0) == part.level % 2 ? part.to : part.from; + } else { + part = bidi[pos += dir]; + if (!part) return null; + if ((dir > 0) == part.level % 2) + target = moveInLine(line, part.to, -1, byUnit); + else + target = moveInLine(line, part.from, 1, byUnit); + } + } + } + + function moveLogically(line, start, dir, byUnit) { + var target = start + dir; + if (byUnit) while (target > 0 && isExtendingChar(line.text.charAt(target))) target += dir; + return target < 0 || target > line.text.length ? null : target; + } + + // Bidirectional ordering algorithm + // See http://unicode.org/reports/tr9/tr9-13.html for the algorithm + // that this (partially) implements. + + // One-char codes used for character types: + // L (L): Left-to-Right + // R (R): Right-to-Left + // r (AL): Right-to-Left Arabic + // 1 (EN): European Number + // + (ES): European Number Separator + // % (ET): European Number Terminator + // n (AN): Arabic Number + // , (CS): Common Number Separator + // m (NSM): Non-Spacing Mark + // b (BN): Boundary Neutral + // s (B): Paragraph Separator + // t (S): Segment Separator + // w (WS): Whitespace + // N (ON): Other Neutrals + + // Returns null if characters are ordered as they appear + // (left-to-right), or an array of sections ({from, to, level} + // objects) in the order in which they occur visually. + var bidiOrdering = (function() { + // Character types for codepoints 0 to 0xff + var lowTypes = "bbbbbbbbbtstwsbbbbbbbbbbbbbbssstwNN%%%NNNNNN,N,N1111111111NNNNNNNLLLLLLLLLLLLLLLLLLLLLLLLLLNNNNNNLLLLLLLLLLLLLLLLLLLLLLLLLLNNNNbbbbbbsbbbbbbbbbbbbbbbbbbbbbbbbbb,N%%%%NNNNLNNNNN%%11NLNNN1LNNNNNLLLLLLLLLLLLLLLLLLLLLLLNLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLN"; + // Character types for codepoints 0x600 to 0x6ff + var arabicTypes = "rrrrrrrrrrrr,rNNmmmmmmrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrmmmmmmmmmmmmmmrrrrrrrnnnnnnnnnn%nnrrrmrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrmmmmmmmmmmmmmmmmmmmNmmmm"; + function charType(code) { + if (code <= 0xf7) return lowTypes.charAt(code); + else if (0x590 <= code && code <= 0x5f4) return "R"; + else if (0x600 <= code && code <= 0x6ed) return arabicTypes.charAt(code - 0x600); + else if (0x6ee <= code && code <= 0x8ac) return "r"; + else if (0x2000 <= code && code <= 0x200b) return "w"; + else if (code == 0x200c) return "b"; + else return "L"; + } + + var bidiRE = /[\u0590-\u05f4\u0600-\u06ff\u0700-\u08ac]/; + var isNeutral = /[stwN]/, isStrong = /[LRr]/, countsAsLeft = /[Lb1n]/, countsAsNum = /[1n]/; + // Browsers seem to always treat the boundaries of block elements as being L. + var outerType = "L"; + + function BidiSpan(level, from, to) { + this.level = level; + this.from = from; this.to = to; + } + + return function(str) { + if (!bidiRE.test(str)) return false; + var len = str.length, types = []; + for (var i = 0, type; i < len; ++i) + types.push(type = charType(str.charCodeAt(i))); + + // W1. Examine each non-spacing mark (NSM) in the level run, and + // change the type of the NSM to the type of the previous + // character. If the NSM is at the start of the level run, it will + // get the type of sor. + for (var i = 0, prev = outerType; i < len; ++i) { + var type = types[i]; + if (type == "m") types[i] = prev; + else prev = type; + } + + // W2. Search backwards from each instance of a European number + // until the first strong type (R, L, AL, or sor) is found. If an + // AL is found, change the type of the European number to Arabic + // number. + // W3. Change all ALs to R. + for (var i = 0, cur = outerType; i < len; ++i) { + var type = types[i]; + if (type == "1" && cur == "r") types[i] = "n"; + else if (isStrong.test(type)) { cur = type; if (type == "r") types[i] = "R"; } + } + + // W4. A single European separator between two European numbers + // changes to a European number. A single common separator between + // two numbers of the same type changes to that type. + for (var i = 1, prev = types[0]; i < len - 1; ++i) { + var type = types[i]; + if (type == "+" && prev == "1" && types[i+1] == "1") types[i] = "1"; + else if (type == "," && prev == types[i+1] && + (prev == "1" || prev == "n")) types[i] = prev; + prev = type; + } + + // W5. A sequence of European terminators adjacent to European + // numbers changes to all European numbers. + // W6. Otherwise, separators and terminators change to Other + // Neutral. + for (var i = 0; i < len; ++i) { + var type = types[i]; + if (type == ",") types[i] = "N"; + else if (type == "%") { + for (var end = i + 1; end < len && types[end] == "%"; ++end) {} + var replace = (i && types[i-1] == "!") || (end < len && types[end] == "1") ? "1" : "N"; + for (var j = i; j < end; ++j) types[j] = replace; + i = end - 1; + } + } + + // W7. Search backwards from each instance of a European number + // until the first strong type (R, L, or sor) is found. If an L is + // found, then change the type of the European number to L. + for (var i = 0, cur = outerType; i < len; ++i) { + var type = types[i]; + if (cur == "L" && type == "1") types[i] = "L"; + else if (isStrong.test(type)) cur = type; + } + + // N1. A sequence of neutrals takes the direction of the + // surrounding strong text if the text on both sides has the same + // direction. European and Arabic numbers act as if they were R in + // terms of their influence on neutrals. Start-of-level-run (sor) + // and end-of-level-run (eor) are used at level run boundaries. + // N2. Any remaining neutrals take the embedding direction. + for (var i = 0; i < len; ++i) { + if (isNeutral.test(types[i])) { + for (var end = i + 1; end < len && isNeutral.test(types[end]); ++end) {} + var before = (i ? types[i-1] : outerType) == "L"; + var after = (end < len ? types[end] : outerType) == "L"; + var replace = before || after ? "L" : "R"; + for (var j = i; j < end; ++j) types[j] = replace; + i = end - 1; + } + } + + // Here we depart from the documented algorithm, in order to avoid + // building up an actual levels array. Since there are only three + // levels (0, 1, 2) in an implementation that doesn't take + // explicit embedding into account, we can build up the order on + // the fly, without following the level-based algorithm. + var order = [], m; + for (var i = 0; i < len;) { + if (countsAsLeft.test(types[i])) { + var start = i; + for (++i; i < len && countsAsLeft.test(types[i]); ++i) {} + order.push(new BidiSpan(0, start, i)); + } else { + var pos = i, at = order.length; + for (++i; i < len && types[i] != "L"; ++i) {} + for (var j = pos; j < i;) { + if (countsAsNum.test(types[j])) { + if (pos < j) order.splice(at, 0, new BidiSpan(1, pos, j)); + var nstart = j; + for (++j; j < i && countsAsNum.test(types[j]); ++j) {} + order.splice(at, 0, new BidiSpan(2, nstart, j)); + pos = j; + } else ++j; + } + if (pos < i) order.splice(at, 0, new BidiSpan(1, pos, i)); + } + } + if (order[0].level == 1 && (m = str.match(/^\s+/))) { + order[0].from = m[0].length; + order.unshift(new BidiSpan(0, 0, m[0].length)); + } + if (lst(order).level == 1 && (m = str.match(/\s+$/))) { + lst(order).to -= m[0].length; + order.push(new BidiSpan(0, len - m[0].length, len)); + } + if (order[0].level != lst(order).level) + order.push(new BidiSpan(order[0].level, len, len)); + + return order; + }; + })(); + + // THE END + + CodeMirror.version = "4.1.1"; + + return CodeMirror; +}); diff --git a/plugins/tiddlywiki/codemirror/files/keymap/emacs.js b/plugins/tiddlywiki/codemirror/lib/keymap/emacs.js similarity index 93% rename from plugins/tiddlywiki/codemirror/files/keymap/emacs.js rename to plugins/tiddlywiki/codemirror/lib/keymap/emacs.js index 7a3dfb11a..7cecf1f62 100644 --- a/plugins/tiddlywiki/codemirror/files/keymap/emacs.js +++ b/plugins/tiddlywiki/codemirror/lib/keymap/emacs.js @@ -1,4 +1,11 @@ -(function() { +(function(mod) { + if (typeof exports == "object" && typeof module == "object") // CommonJS + mod(require("../lib/codemirror")); + else if (typeof define == "function" && define.amd) // AMD + define(["../lib/codemirror"], mod); + else // Plain browser env + mod(CodeMirror); +})(function(CodeMirror) { "use strict"; var Pos = CodeMirror.Pos; @@ -174,7 +181,7 @@ if (dup > 1 && event.origin == "+input") { var one = event.text.join("\n"), txt = ""; for (var i = 1; i < dup; ++i) txt += one; - cm.replaceSelection(txt, "end", "+input"); + cm.replaceSelection(txt); } } @@ -197,10 +204,15 @@ function setMark(cm) { cm.setCursor(cm.getCursor()); - cm.setExtending(true); + cm.setExtending(!cm.getExtending()); cm.on("change", function() { cm.setExtending(false); }); } + function clearMark(cm) { + cm.setExtending(false); + cm.setCursor(cm.getCursor()); + } + function getInput(cm, msg, f) { if (cm.openDialog) cm.openDialog(msg + ": ", f, {bottom: true}); @@ -234,6 +246,11 @@ } } + function quit(cm) { + cm.execCommand("clearSearch"); + clearMark(cm); + } + // Actual keymap var keyMap = CodeMirror.keyMap.emacs = { @@ -249,13 +266,14 @@ }), "Alt-W": function(cm) { addToRing(cm.getSelection()); + clearMark(cm); }, "Ctrl-Y": function(cm) { var start = cm.getCursor(); cm.replaceRange(getFromRing(getPrefix(cm)), start, start, "paste"); cm.setSelection(start, cm.getCursor()); }, - "Alt-Y": function(cm) {cm.replaceSelection(popFromRing());}, + "Alt-Y": function(cm) {cm.replaceSelection(popFromRing(), "around", "paste");}, "Ctrl-Space": setMark, "Ctrl-Shift-2": setMark, @@ -306,13 +324,7 @@ }, "Ctrl-O": repeated(function(cm) { cm.replaceSelection("\n", "start"); }), "Ctrl-T": repeated(function(cm) { - var pos = cm.getCursor(); - if (pos.ch < cm.getLine(pos.line).length) pos = Pos(pos.line, pos.ch + 1); - var from = cm.findPosH(pos, -2, "char"); - var range = cm.getRange(from, pos); - if (range.length != 2) return; - cm.setSelection(from, pos); - cm.replaceSelection(range.charAt(1) + range.charAt(0), "end"); + cm.execCommand("transposeChars"); }), "Alt-C": repeated(function(cm) { @@ -334,7 +346,7 @@ "Ctrl-/": repeated("undo"), "Shift-Ctrl--": repeated("undo"), "Ctrl-Z": repeated("undo"), "Cmd-Z": repeated("undo"), "Shift-Alt-,": "goDocStart", "Shift-Alt-.": "goDocEnd", - "Ctrl-S": "findNext", "Ctrl-R": "findPrev", "Ctrl-G": "clearSearch", "Shift-Alt-5": "replace", + "Ctrl-S": "findNext", "Ctrl-R": "findPrev", "Ctrl-G": quit, "Shift-Alt-5": "replace", "Alt-/": "autocomplete", "Ctrl-J": "newlineAndIndent", "Enter": false, "Tab": "indentAuto", @@ -384,4 +396,4 @@ } for (var i = 0; i < 10; ++i) regPrefix(String(i)); regPrefix("-"); -})(); +}); diff --git a/plugins/tiddlywiki/codemirror/files/keymap/extra.js b/plugins/tiddlywiki/codemirror/lib/keymap/extra.js similarity index 100% rename from plugins/tiddlywiki/codemirror/files/keymap/extra.js rename to plugins/tiddlywiki/codemirror/lib/keymap/extra.js diff --git a/plugins/tiddlywiki/codemirror/lib/keymap/sublime.js b/plugins/tiddlywiki/codemirror/lib/keymap/sublime.js new file mode 100644 index 000000000..eea46347f --- /dev/null +++ b/plugins/tiddlywiki/codemirror/lib/keymap/sublime.js @@ -0,0 +1,517 @@ +// A rough approximation of Sublime Text's keybindings +// Depends on addon/search/searchcursor.js and optionally addon/dialog/dialogs.js + +(function(mod) { + if (typeof exports == "object" && typeof module == "object") // CommonJS + mod(require("../lib/codemirror"), require("../addon/search/searchcursor"), require("../addon/edit/matchbrackets")); + else if (typeof define == "function" && define.amd) // AMD + define(["../lib/codemirror", "../addon/search/searchcursor", "../addon/edit/matchbrackets"], mod); + else // Plain browser env + mod(CodeMirror); +})(function(CodeMirror) { + "use strict"; + + var map = CodeMirror.keyMap.sublime = {fallthrough: "default"}; + var cmds = CodeMirror.commands; + var Pos = CodeMirror.Pos; + var ctrl = CodeMirror.keyMap["default"] == CodeMirror.keyMap.pcDefault ? "Ctrl-" : "Cmd-"; + + // This is not exactly Sublime's algorithm. I couldn't make heads or tails of that. + function findPosSubword(doc, start, dir) { + if (dir < 0 && start.ch == 0) return doc.clipPos(Pos(start.line - 1)); + var line = doc.getLine(start.line); + if (dir > 0 && start.ch >= line.length) return doc.clipPos(Pos(start.line + 1, 0)); + var state = "start", type; + for (var pos = start.ch, e = dir < 0 ? 0 : line.length, i = 0; pos != e; pos += dir, i++) { + var next = line.charAt(dir < 0 ? pos - 1 : pos); + var cat = next != "_" && CodeMirror.isWordChar(next) ? "w" : "o"; + if (cat == "w" && next.toUpperCase() == next) cat = "W"; + if (state == "start") { + if (cat != "o") { state = "in"; type = cat; } + } else if (state == "in") { + if (type != cat) { + if (type == "w" && cat == "W" && dir < 0) pos--; + if (type == "W" && cat == "w" && dir > 0) { type = "w"; continue; } + break; + } + } + } + return Pos(start.line, pos); + } + + function moveSubword(cm, dir) { + cm.extendSelectionsBy(function(range) { + if (cm.display.shift || cm.doc.extend || range.empty()) + return findPosSubword(cm.doc, range.head, dir); + else + return dir < 0 ? range.from() : range.to(); + }); + } + + cmds[map["Alt-Left"] = "goSubwordLeft"] = function(cm) { moveSubword(cm, -1); }; + cmds[map["Alt-Right"] = "goSubwordRight"] = function(cm) { moveSubword(cm, 1); }; + + cmds[map[ctrl + "Up"] = "scrollLineUp"] = function(cm) { + var info = cm.getScrollInfo(); + if (!cm.somethingSelected()) { + var visibleBottomLine = cm.lineAtHeight(info.top + info.clientHeight, "local"); + if (cm.getCursor().line >= visibleBottomLine) + cm.execCommand("goLineUp"); + } + cm.scrollTo(null, info.top - cm.defaultTextHeight()); + }; + cmds[map[ctrl + "Down"] = "scrollLineDown"] = function(cm) { + var info = cm.getScrollInfo(); + if (!cm.somethingSelected()) { + var visibleTopLine = cm.lineAtHeight(info.top, "local")+1; + if (cm.getCursor().line <= visibleTopLine) + cm.execCommand("goLineDown"); + } + cm.scrollTo(null, info.top + cm.defaultTextHeight()); + }; + + cmds[map["Shift-" + ctrl + "L"] = "splitSelectionByLine"] = function(cm) { + var ranges = cm.listSelections(), lineRanges = []; + for (var i = 0; i < ranges.length; i++) { + var from = ranges[i].from(), to = ranges[i].to(); + for (var line = from.line; line <= to.line; ++line) + if (!(to.line > from.line && line == to.line && to.ch == 0)) + lineRanges.push({anchor: line == from.line ? from : Pos(line, 0), + head: line == to.line ? to : Pos(line)}); + } + cm.setSelections(lineRanges, 0); + }; + + map["Shift-Tab"] = "indentLess"; + + cmds[map["Esc"] = "singleSelectionTop"] = function(cm) { + var range = cm.listSelections()[0]; + cm.setSelection(range.anchor, range.head, {scroll: false}); + }; + + cmds[map[ctrl + "L"] = "selectLine"] = function(cm) { + var ranges = cm.listSelections(), extended = []; + for (var i = 0; i < ranges.length; i++) { + var range = ranges[i]; + extended.push({anchor: Pos(range.from().line, 0), + head: Pos(range.to().line + 1, 0)}); + } + cm.setSelections(extended); + }; + + map["Shift-" + ctrl + "K"] = "deleteLine"; + + function insertLine(cm, above) { + cm.operation(function() { + var len = cm.listSelections().length, newSelection = [], last = -1; + for (var i = 0; i < len; i++) { + var head = cm.listSelections()[i].head; + if (head.line <= last) continue; + var at = Pos(head.line + (above ? 0 : 1), 0); + cm.replaceRange("\n", at, null, "+insertLine"); + cm.indentLine(at.line, null, true); + newSelection.push({head: at, anchor: at}); + last = head.line + 1; + } + cm.setSelections(newSelection); + }); + } + + cmds[map[ctrl + "Enter"] = "insertLineAfter"] = function(cm) { insertLine(cm, false); }; + + cmds[map["Shift-" + ctrl + "Enter"] = "insertLineBefore"] = function(cm) { insertLine(cm, true); }; + + function wordAt(cm, pos) { + var start = pos.ch, end = start, line = cm.getLine(pos.line); + while (start && CodeMirror.isWordChar(line.charAt(start - 1))) --start; + while (end < line.length && CodeMirror.isWordChar(line.charAt(end))) ++end; + return {from: Pos(pos.line, start), to: Pos(pos.line, end), word: line.slice(start, end)}; + } + + cmds[map[ctrl + "D"] = "selectNextOccurrence"] = function(cm) { + var from = cm.getCursor("from"), to = cm.getCursor("to"); + var fullWord = cm.state.sublimeFindFullWord == cm.doc.sel; + if (CodeMirror.cmpPos(from, to) == 0) { + var word = wordAt(cm, from); + if (!word.word) return; + cm.setSelection(word.from, word.to); + fullWord = true; + } else { + var text = cm.getRange(from, to); + var query = fullWord ? new RegExp("\\b" + text + "\\b") : text; + var cur = cm.getSearchCursor(query, to); + if (cur.findNext()) { + cm.addSelection(cur.from(), cur.to()); + } else { + cur = cm.getSearchCursor(query, Pos(cm.firstLine(), 0)); + if (cur.findNext()) + cm.addSelection(cur.from(), cur.to()); + } + } + if (fullWord) + cm.state.sublimeFindFullWord = cm.doc.sel; + }; + + var mirror = "(){}[]"; + function selectBetweenBrackets(cm) { + var pos = cm.getCursor(), opening = cm.scanForBracket(pos, -1); + if (!opening) return; + for (;;) { + var closing = cm.scanForBracket(pos, 1); + if (!closing) return; + if (closing.ch == mirror.charAt(mirror.indexOf(opening.ch) + 1)) { + cm.setSelection(Pos(opening.pos.line, opening.pos.ch + 1), closing.pos, false); + return true; + } + pos = Pos(closing.pos.line, closing.pos.ch + 1); + } + } + + cmds[map["Shift-" + ctrl + "Space"] = "selectScope"] = function(cm) { + selectBetweenBrackets(cm) || cm.execCommand("selectAll"); + }; + cmds[map["Shift-" + ctrl + "M"] = "selectBetweenBrackets"] = function(cm) { + if (!selectBetweenBrackets(cm)) return CodeMirror.Pass; + }; + + cmds[map[ctrl + "M"] = "goToBracket"] = function(cm) { + cm.extendSelectionsBy(function(range) { + var next = cm.scanForBracket(range.head, 1); + if (next && CodeMirror.cmpPos(next.pos, range.head) != 0) return next.pos; + var prev = cm.scanForBracket(range.head, -1); + return prev && Pos(prev.pos.line, prev.pos.ch + 1) || range.head; + }); + }; + + cmds[map["Shift-" + ctrl + "Up"] = "swapLineUp"] = function(cm) { + var ranges = cm.listSelections(), linesToMove = [], at = cm.firstLine() - 1; + for (var i = 0; i < ranges.length; i++) { + var range = ranges[i], from = range.from().line - 1, to = range.to().line; + if (from > at) linesToMove.push(from, to); + else if (linesToMove.length) linesToMove[linesToMove.length - 1] = to; + at = to; + } + cm.operation(function() { + for (var i = 0; i < linesToMove.length; i += 2) { + var from = linesToMove[i], to = linesToMove[i + 1]; + var line = cm.getLine(from); + cm.replaceRange("", Pos(from, 0), Pos(from + 1, 0), "+swapLine"); + if (to > cm.lastLine()) { + cm.replaceRange("\n" + line, Pos(cm.lastLine()), null, "+swapLine"); + var sels = cm.listSelections(), last = sels[sels.length - 1]; + var head = last.head.line == to ? Pos(to - 1) : last.head; + var anchor = last.anchor.line == to ? Pos(to - 1) : last.anchor; + cm.setSelections(sels.slice(0, sels.length - 1).concat([{head: head, anchor: anchor}])); + } else { + cm.replaceRange(line + "\n", Pos(to, 0), null, "+swapLine"); + } + } + cm.scrollIntoView(); + }); + }; + + cmds[map["Shift-" + ctrl + "Down"] = "swapLineDown"] = function(cm) { + var ranges = cm.listSelections(), linesToMove = [], at = cm.lastLine() + 1; + for (var i = ranges.length - 1; i >= 0; i--) { + var range = ranges[i], from = range.to().line + 1, to = range.from().line; + if (from < at) linesToMove.push(from, to); + else if (linesToMove.length) linesToMove[linesToMove.length - 1] = to; + at = to; + } + cm.operation(function() { + for (var i = linesToMove.length - 2; i >= 0; i -= 2) { + var from = linesToMove[i], to = linesToMove[i + 1]; + var line = cm.getLine(from); + if (from == cm.lastLine()) + cm.replaceRange("", Pos(from - 1), Pos(from), "+swapLine"); + else + cm.replaceRange("", Pos(from, 0), Pos(from + 1, 0), "+swapLine"); + cm.replaceRange(line + "\n", Pos(to, 0), null, "+swapLine"); + } + cm.scrollIntoView(); + }); + }; + + map[ctrl + "/"] = "toggleComment"; + + cmds[map[ctrl + "J"] = "joinLines"] = function(cm) { + var ranges = cm.listSelections(), joined = []; + for (var i = 0; i < ranges.length; i++) { + var range = ranges[i], from = range.from(); + var start = from.line, end = range.to().line; + while (i < ranges.length - 1 && ranges[i + 1].from().line == end) + end = ranges[++i].to().line; + joined.push({start: start, end: end, anchor: !range.empty() && from}); + } + cm.operation(function() { + var offset = 0, ranges = []; + for (var i = 0; i < joined.length; i++) { + var obj = joined[i]; + var anchor = obj.anchor && Pos(obj.anchor.line - offset, obj.anchor.ch), head; + for (var line = obj.start; line <= obj.end; line++) { + var actual = line - offset; + if (line == obj.end) head = Pos(actual, cm.getLine(actual).length + 1); + if (actual < cm.lastLine()) { + cm.replaceRange(" ", Pos(actual), Pos(actual + 1, /^\s*/.exec(cm.getLine(actual + 1))[0].length)); + ++offset; + } + } + ranges.push({anchor: anchor || head, head: head}); + } + cm.setSelections(ranges, 0); + }); + }; + + cmds[map["Shift-" + ctrl + "D"] = "duplicateLine"] = function(cm) { + cm.operation(function() { + var rangeCount = cm.listSelections().length; + for (var i = 0; i < rangeCount; i++) { + var range = cm.listSelections()[i]; + if (range.empty()) + cm.replaceRange(cm.getLine(range.head.line) + "\n", Pos(range.head.line, 0)); + else + cm.replaceRange(cm.getRange(range.from(), range.to()), range.from()); + } + cm.scrollIntoView(); + }); + }; + + map[ctrl + "T"] = "transposeChars"; + + function sortLines(cm, caseSensitive) { + var ranges = cm.listSelections(), toSort = [], selected; + for (var i = 0; i < ranges.length; i++) { + var range = ranges[i]; + if (range.empty()) continue; + var from = range.from().line, to = range.to().line; + while (i < ranges.length - 1 && ranges[i + 1].from().line == to) + to = range[++i].to().line; + toSort.push(from, to); + } + if (toSort.length) selected = true; + else toSort.push(cm.firstLine(), cm.lastLine()); + + cm.operation(function() { + var ranges = []; + for (var i = 0; i < toSort.length; i += 2) { + var from = toSort[i], to = toSort[i + 1]; + var start = Pos(from, 0), end = Pos(to); + var lines = cm.getRange(start, end, false); + if (caseSensitive) + lines.sort(); + else + lines.sort(function(a, b) { + var au = a.toUpperCase(), bu = b.toUpperCase(); + if (au != bu) { a = au; b = bu; } + return a < b ? -1 : a == b ? 0 : 1; + }); + cm.replaceRange(lines, start, end); + if (selected) ranges.push({anchor: start, head: end}); + } + if (selected) cm.setSelections(ranges, 0); + }); + } + + cmds[map["F9"] = "sortLines"] = function(cm) { sortLines(cm, true); }; + cmds[map[ctrl + "F9"] = "sortLinesInsensitive"] = function(cm) { sortLines(cm, false); }; + + cmds[map["F2"] = "nextBookmark"] = function(cm) { + var marks = cm.state.sublimeBookmarks; + if (marks) while (marks.length) { + var current = marks.shift(); + var found = current.find(); + if (found) { + marks.push(current); + return cm.setSelection(found.from, found.to); + } + } + }; + + cmds[map["Shift-F2"] = "prevBookmark"] = function(cm) { + var marks = cm.state.sublimeBookmarks; + if (marks) while (marks.length) { + marks.unshift(marks.pop()); + var found = marks[marks.length - 1].find(); + if (!found) + marks.pop(); + else + return cm.setSelection(found.from, found.to); + } + }; + + cmds[map[ctrl + "F2"] = "toggleBookmark"] = function(cm) { + var ranges = cm.listSelections(); + var marks = cm.state.sublimeBookmarks || (cm.state.sublimeBookmarks = []); + for (var i = 0; i < ranges.length; i++) { + var from = ranges[i].from(), to = ranges[i].to(); + var found = cm.findMarks(from, to); + for (var j = 0; j < found.length; j++) { + if (found[j].sublimeBookmark) { + found[j].clear(); + for (var k = 0; k < marks.length; k++) + if (marks[k] == found[j]) + marks.splice(k--, 1); + break; + } + } + if (j == found.length) + marks.push(cm.markText(from, to, {sublimeBookmark: true, clearWhenEmpty: false})); + } + }; + + cmds[map["Shift-" + ctrl + "F2"] = "clearBookmarks"] = function(cm) { + var marks = cm.state.sublimeBookmarks; + if (marks) for (var i = 0; i < marks.length; i++) marks[i].clear(); + marks.length = 0; + }; + + cmds[map["Alt-F2"] = "selectBookmarks"] = function(cm) { + var marks = cm.state.sublimeBookmarks, ranges = []; + if (marks) for (var i = 0; i < marks.length; i++) { + var found = marks[i].find(); + if (!found) + marks.splice(i--, 0); + else + ranges.push({anchor: found.from, head: found.to}); + } + if (ranges.length) + cm.setSelections(ranges, 0); + }; + + map["Alt-Q"] = "wrapLines"; + + var mapK = CodeMirror.keyMap["sublime-Ctrl-K"] = {auto: "sublime", nofallthrough: true}; + + map[ctrl + "K"] = function(cm) {cm.setOption("keyMap", "sublime-Ctrl-K");}; + + function modifyWordOrSelection(cm, mod) { + cm.operation(function() { + var ranges = cm.listSelections(), indices = [], replacements = []; + for (var i = 0; i < ranges.length; i++) { + var range = ranges[i]; + if (range.empty()) { indices.push(i); replacements.push(""); } + else replacements.push(mod(cm.getRange(range.from(), range.to()))); + } + cm.replaceSelections(replacements, "around", "case"); + for (var i = indices.length - 1, at; i >= 0; i--) { + var range = ranges[indices[i]]; + if (at && CodeMirror.cmpPos(range.head, at) > 0) continue; + var word = wordAt(cm, range.head); + at = word.from; + cm.replaceRange(mod(word.word), word.from, word.to); + } + }); + } + + mapK[ctrl + "Backspace"] = "delLineLeft"; + + cmds[mapK[ctrl + "K"] = "delLineRight"] = function(cm) { + cm.operation(function() { + var ranges = cm.listSelections(); + for (var i = ranges.length - 1; i >= 0; i--) + cm.replaceRange("", ranges[i].anchor, Pos(ranges[i].to().line), "+delete"); + cm.scrollIntoView(); + }); + }; + + cmds[mapK[ctrl + "U"] = "upcaseAtCursor"] = function(cm) { + modifyWordOrSelection(cm, function(str) { return str.toUpperCase(); }); + }; + cmds[mapK[ctrl + "L"] = "downcaseAtCursor"] = function(cm) { + modifyWordOrSelection(cm, function(str) { return str.toLowerCase(); }); + }; + + cmds[mapK[ctrl + "Space"] = "setSublimeMark"] = function(cm) { + if (cm.state.sublimeMark) cm.state.sublimeMark.clear(); + cm.state.sublimeMark = cm.setBookmark(cm.getCursor()); + }; + cmds[mapK[ctrl + "A"] = "selectToSublimeMark"] = function(cm) { + var found = cm.state.sublimeMark && cm.state.sublimeMark.find(); + if (found) cm.setSelection(cm.getCursor(), found); + }; + cmds[mapK[ctrl + "W"] = "deleteToSublimeMark"] = function(cm) { + var found = cm.state.sublimeMark && cm.state.sublimeMark.find(); + if (found) { + var from = cm.getCursor(), to = found; + if (CodeMirror.cmpPos(from, to) > 0) { var tmp = to; to = from; from = tmp; } + cm.state.sublimeKilled = cm.getRange(from, to); + cm.replaceRange("", from, to); + } + }; + cmds[mapK[ctrl + "X"] = "swapWithSublimeMark"] = function(cm) { + var found = cm.state.sublimeMark && cm.state.sublimeMark.find(); + if (found) { + cm.state.sublimeMark.clear(); + cm.state.sublimeMark = cm.setBookmark(cm.getCursor()); + cm.setCursor(found); + } + }; + cmds[mapK[ctrl + "Y"] = "sublimeYank"] = function(cm) { + if (cm.state.sublimeKilled != null) + cm.replaceSelection(cm.state.sublimeKilled, null, "paste"); + }; + + mapK[ctrl + "G"] = "clearBookmarks"; + cmds[mapK[ctrl + "C"] = "showInCenter"] = function(cm) { + var pos = cm.cursorCoords(null, "local"); + cm.scrollTo(null, (pos.top + pos.bottom) / 2 - cm.getScrollInfo().clientHeight / 2); + }; + + cmds[map["Shift-Alt-Up"] = "selectLinesUpward"] = function(cm) { + cm.operation(function() { + var ranges = cm.listSelections(); + for (var i = 0; i < ranges.length; i++) { + var range = ranges[i]; + if (range.head.line > cm.firstLine()) + cm.addSelection(Pos(range.head.line - 1, range.head.ch)); + } + }); + }; + cmds[map["Shift-Alt-Down"] = "selectLinesDownward"] = function(cm) { + cm.operation(function() { + var ranges = cm.listSelections(); + for (var i = 0; i < ranges.length; i++) { + var range = ranges[i]; + if (range.head.line < cm.lastLine()) + cm.addSelection(Pos(range.head.line + 1, range.head.ch)); + } + }); + }; + + function findAndGoTo(cm, forward) { + var from = cm.getCursor("from"), to = cm.getCursor("to"); + if (CodeMirror.cmpPos(from, to) == 0) { + var word = wordAt(cm, from); + if (!word.word) return; + from = word.from; + to = word.to; + } + + var query = cm.getRange(from, to); + var cur = cm.getSearchCursor(query, forward ? to : from); + + if (forward ? cur.findNext() : cur.findPrevious()) { + cm.setSelection(cur.from(), cur.to()); + } else { + cur = cm.getSearchCursor(query, forward ? Pos(cm.firstLine(), 0) + : cm.clipPos(Pos(cm.lastLine()))); + if (forward ? cur.findNext() : cur.findPrevious()) + cm.setSelection(cur.from(), cur.to()); + else if (word) + cm.setSelection(from, to); + } + }; + cmds[map[ctrl + "F3"] = "findUnder"] = function(cm) { findAndGoTo(cm, true); }; + cmds[map["Shift-" + ctrl + "F3"] = "findUnderPrevious"] = function(cm) { findAndGoTo(cm,false); }; + + map["Shift-" + ctrl + "["] = "fold"; + map["Shift-" + ctrl + "]"] = "unfold"; + mapK[ctrl + "0"] = mapK[ctrl + "j"] = "unfoldAll"; + + map[ctrl + "I"] = "findIncremental"; + map["Shift-" + ctrl + "I"] = "findIncrementalReverse"; + map[ctrl + "H"] = "replace"; + map["F3"] = "findNext"; + map["Shift-F3"] = "findPrev"; + +}); diff --git a/plugins/tiddlywiki/codemirror/files/keymap/vim.js b/plugins/tiddlywiki/codemirror/lib/keymap/vim.js similarity index 75% rename from plugins/tiddlywiki/codemirror/files/keymap/vim.js rename to plugins/tiddlywiki/codemirror/lib/keymap/vim.js index dab10e21a..c78d76af9 100644 --- a/plugins/tiddlywiki/codemirror/files/keymap/vim.js +++ b/plugins/tiddlywiki/codemirror/lib/keymap/vim.js @@ -32,7 +32,7 @@ * ESC - leave insert mode, visual mode, and clear input state. * Ctrl-[, Ctrl-c - same as ESC. * - * Registers: unamed, -, a-z, A-Z, 0-9 + * Registers: unnamed, -, a-z, A-Z, 0-9 * (Does not respect the special case for number registers when delete * operator is made with these commands: %, (, ), , /, ?, n, N, {, } ) * TODO: Implement the remaining registers. @@ -56,7 +56,14 @@ * 8. Set up Vim to work as a keymap for CodeMirror. */ -(function() { +(function(mod) { + if (typeof exports == "object" && typeof module == "object") // CommonJS + mod(require("../lib/codemirror"), require("../addon/search/searchcursor"), require("../addon/dialog/dialog"), require("../addon/edit/matchbrackets.js")); + else if (typeof define == "function" && define.amd) // AMD + define(["../lib/codemirror", "../addon/search/searchcursor", "../addon/dialog/dialog", "../addon/edit/matchbrackets"], mod); + else // Plain browser env + mod(CodeMirror); +})(function(CodeMirror) { 'use strict'; var defaultKeymap = [ @@ -74,7 +81,7 @@ { keys: [''], type: 'keyToKey', toKeys: ['b'] }, { keys: [''], type: 'keyToKey', toKeys: ['j'] }, { keys: [''], type: 'keyToKey', toKeys: ['k'] }, - { keys: ['C-['], type: 'keyToKey', toKeys: [''] }, + { keys: [''], type: 'keyToKey', toKeys: [''] }, { keys: [''], type: 'keyToKey', toKeys: [''] }, { keys: ['s'], type: 'keyToKey', toKeys: ['c', 'l'], context: 'normal' }, { keys: ['s'], type: 'keyToKey', toKeys: ['x', 'i'], context: 'visual'}, @@ -84,6 +91,7 @@ { keys: [''], type: 'keyToKey', toKeys: ['$'] }, { keys: [''], type: 'keyToKey', toKeys: [''] }, { keys: [''], type: 'keyToKey', toKeys: [''] }, + { keys: [''], type: 'keyToKey', toKeys: ['j', '^'], context: 'normal' }, // Motions { keys: ['H'], type: 'motion', motion: 'moveToTopLine', @@ -193,13 +201,18 @@ { keys: [','], type: 'motion', motion: 'repeatLastCharacterSearch', motionArgs: { forward: false }}, { keys: ['\'', 'character'], type: 'motion', motion: 'goToMark', - motionArgs: {toJumplist: true}}, + motionArgs: {toJumplist: true, linewise: true}}, { keys: ['`', 'character'], type: 'motion', motion: 'goToMark', motionArgs: {toJumplist: true}}, { keys: [']', '`'], type: 'motion', motion: 'jumpToMark', motionArgs: { forward: true } }, { keys: ['[', '`'], type: 'motion', motion: 'jumpToMark', motionArgs: { forward: false } }, { keys: [']', '\''], type: 'motion', motion: 'jumpToMark', motionArgs: { forward: true, linewise: true } }, { keys: ['[', '\''], type: 'motion', motion: 'jumpToMark', motionArgs: { forward: false, linewise: true } }, + // the next two aren't motions but must come before more general motion declarations + { keys: [']', 'p'], type: 'action', action: 'paste', isEdit: true, + actionArgs: { after: true, isEdit: true, matchIndent: true}}, + { keys: ['[', 'p'], type: 'action', action: 'paste', isEdit: true, + actionArgs: { after: false, isEdit: true, matchIndent: true}}, { keys: [']', 'character'], type: 'motion', motion: 'moveToSymbol', motionArgs: { forward: true, toJumplist: true}}, @@ -209,6 +222,7 @@ { keys: ['|'], type: 'motion', motion: 'moveToColumn', motionArgs: { }}, + { keys: ['o'], type: 'motion', motion: 'moveToOtherHighlightedEnd', motionArgs: { },context:'visual'}, // Operators { keys: ['d'], type: 'operator', operator: 'delete' }, { keys: ['y'], type: 'operator', operator: 'yank' }, @@ -247,6 +261,12 @@ actionArgs: { forward: true }}, { keys: [''], type: 'action', action: 'jumpListWalk', actionArgs: { forward: false }}, + { keys: [''], type: 'action', + action: 'scroll', + actionArgs: { forward: true, linewise: true }}, + { keys: [''], type: 'action', + action: 'scroll', + actionArgs: { forward: false, linewise: true }}, { keys: ['a'], type: 'action', action: 'enterInsertMode', isEdit: true, actionArgs: { insertAt: 'charAfter' }}, { keys: ['A'], type: 'action', action: 'enterInsertMode', isEdit: true, @@ -264,6 +284,7 @@ { keys: ['v'], type: 'action', action: 'toggleVisualMode' }, { keys: ['V'], type: 'action', action: 'toggleVisualMode', actionArgs: { linewise: true }}, + { keys: ['g', 'v'], type: 'action', action: 'reselectLastSelection' }, { keys: ['J'], type: 'action', action: 'joinLines', isEdit: true }, { keys: ['p'], type: 'action', action: 'paste', isEdit: true, actionArgs: { after: true, isEdit: true }}, @@ -276,6 +297,8 @@ { keys: ['R'], type: 'action', action: 'enterInsertMode', isEdit: true, actionArgs: { replace: true }}, { keys: ['u'], type: 'action', action: 'undo' }, + { keys: ['u'], type: 'action', action: 'changeCase', actionArgs: {toLower: true}, context: 'visual', isEdit: true }, + { keys: ['U'],type: 'action', action: 'changeCase', actionArgs: {toLower: false}, context: 'visual', isEdit: true }, { keys: [''], type: 'action', action: 'redo' }, { keys: ['m', 'character'], type: 'action', action: 'setMark' }, { keys: ['"', 'character'], type: 'action', action: 'setRegister' }, @@ -313,35 +336,60 @@ { keys: ['?'], type: 'search', searchArgs: { forward: false, querySrc: 'prompt', toJumplist: true }}, { keys: ['*'], type: 'search', - searchArgs: { forward: true, querySrc: 'wordUnderCursor', toJumplist: true }}, + searchArgs: { forward: true, querySrc: 'wordUnderCursor', wholeWordOnly: true, toJumplist: true }}, { keys: ['#'], type: 'search', - searchArgs: { forward: false, querySrc: 'wordUnderCursor', toJumplist: true }}, + searchArgs: { forward: false, querySrc: 'wordUnderCursor', wholeWordOnly: true, toJumplist: true }}, + { keys: ['g', '*'], type: 'search', searchArgs: { forward: true, querySrc: 'wordUnderCursor', toJumplist: true }}, + { keys: ['g', '#'], type: 'search', searchArgs: { forward: false, querySrc: 'wordUnderCursor', toJumplist: true }}, // Ex command { keys: [':'], type: 'ex' } ]; + var Pos = CodeMirror.Pos; + var Vim = function() { CodeMirror.defineOption('vimMode', false, function(cm, val) { if (val) { cm.setOption('keyMap', 'vim'); + cm.setOption('disableInput', true); CodeMirror.signal(cm, "vim-mode-change", {mode: "normal"}); cm.on('beforeSelectionChange', beforeSelectionChange); + cm.on('cursorActivity', onCursorActivity); maybeInitVimState(cm); + CodeMirror.on(cm.getInputField(), 'paste', getOnPasteFn(cm)); } else if (cm.state.vim) { cm.setOption('keyMap', 'default'); + cm.setOption('disableInput', false); cm.off('beforeSelectionChange', beforeSelectionChange); + cm.off('cursorActivity', onCursorActivity); + CodeMirror.off(cm.getInputField(), 'paste', getOnPasteFn(cm)); cm.state.vim = null; } }); - function beforeSelectionChange(cm, cur) { + function beforeSelectionChange(cm, obj) { var vim = cm.state.vim; if (vim.insertMode || vim.exMode) return; - var head = cur.head; + var head = obj.ranges[0].head; + var anchor = obj.ranges[0].anchor; if (head.ch && head.ch == cm.doc.getLine(head.line).length) { - head.ch--; + var pos = Pos(head.line, head.ch - 1); + obj.update([{anchor: cursorEqual(head, anchor) ? pos : anchor, + head: pos}]); } } + function getOnPasteFn(cm) { + var vim = cm.state.vim; + if (!vim.onPasteFn) { + vim.onPasteFn = function() { + if (!vim.insertMode) { + cm.setCursor(offsetCursor(cm.getCursor(), 0, 1)); + actions.enterInsertMode(cm, {}, vim); + } + }; + } + return vim.onPasteFn; + } var numberRegex = /[\d]/; var wordRegexp = [(/\w/), (/[^\w\s]/)], bigWordRegexp = [(/\S/)]; @@ -359,7 +407,7 @@ var specialKeys = ['Left', 'Right', 'Up', 'Down', 'Space', 'Backspace', 'Esc', 'Home', 'End', 'PageUp', 'PageDown', 'Enter']; var validMarks = [].concat(upperCaseAlphabet, lowerCaseAlphabet, numbers, ['<', '>']); - var validRegisters = [].concat(upperCaseAlphabet, lowerCaseAlphabet, numbers, ['-', '"']); + var validRegisters = [].concat(upperCaseAlphabet, lowerCaseAlphabet, numbers, ['-', '"', '.', ':']); function isLine(cm, line) { return line >= cm.firstLine() && line <= cm.lastLine(); @@ -388,6 +436,41 @@ return false; } + var options = {}; + function defineOption(name, defaultValue, type) { + if (defaultValue === undefined) { throw Error('defaultValue is required'); } + if (!type) { type = 'string'; } + options[name] = { + type: type, + defaultValue: defaultValue + }; + setOption(name, defaultValue); + } + + function setOption(name, value) { + var option = options[name]; + if (!option) { + throw Error('Unknown option: ' + name); + } + if (option.type == 'boolean') { + if (value && value !== true) { + throw Error('Invalid argument: ' + name + '=' + value); + } else if (value !== false) { + // Boolean options are set to true if value is not defined. + value = true; + } + } + option.value = option.type == 'boolean' ? !!value : value; + } + + function getOption(name) { + var option = options[name]; + if (!option) { + throw Error('Unknown option: ' + name); + } + return option.value; + } + var createCircularJumpList = function() { var size = 100; var pointer = -1; @@ -454,30 +537,52 @@ }; }; - var createMacroState = function() { + // Returns an object to track the changes associated insert mode. It + // clones the object that is passed in, or creates an empty object one if + // none is provided. + var createInsertModeChanges = function(c) { + if (c) { + // Copy construction + return { + changes: c.changes, + expectCursorActivityForChange: c.expectCursorActivityForChange + }; + } return { - macroKeyBuffer: [], - latestRegister: undefined, - inReplay: false, - lastInsertModeChanges: { - changes: [], // Change list - expectCursorActivityForChange: false // Set to true on change, false on cursorActivity. - }, - enteredMacroMode: undefined, - isMacroPlaying: false, - toggle: function(cm, registerName) { - if (this.enteredMacroMode) { //onExit - this.enteredMacroMode(); // close dialog - this.enteredMacroMode = undefined; - } else { //onEnter - this.latestRegister = registerName; - this.enteredMacroMode = cm.openDialog( - '(recording)['+registerName+']', null, {bottom:true}); - } - } + // Change list + changes: [], + // Set to true on change, false on cursorActivity. + expectCursorActivityForChange: false }; }; + function MacroModeState() { + this.latestRegister = undefined; + this.isPlaying = false; + this.isRecording = false; + this.replaySearchQueries = []; + this.onRecordingDone = undefined; + this.lastInsertModeChanges = createInsertModeChanges(); + } + MacroModeState.prototype = { + exitMacroRecordMode: function() { + var macroModeState = vimGlobalState.macroModeState; + macroModeState.onRecordingDone(); // close dialog + macroModeState.onRecordingDone = undefined; + macroModeState.isRecording = false; + }, + enterMacroRecordMode: function(cm, registerName) { + var register = + vimGlobalState.registerController.getRegister(registerName); + if (register) { + register.clear(); + this.latestRegister = registerName; + this.onRecordingDone = cm.openDialog( + '(recording)['+registerName+']', null, {bottom:true}); + this.isRecording = true; + } + } + }; function maybeInitVimState(cm) { if (!cm.state.vim) { @@ -508,7 +613,8 @@ insertModeRepeat: undefined, visualMode: false, // If we are in visual line mode. No effect if visualMode is false. - visualLine: false + visualLine: false, + lastSelection: null }; } return cm.state.vim; @@ -520,12 +626,18 @@ searchQuery: null, // Whether we are searching backwards. searchIsReversed: false, + // Replace part of the last substituted pattern + lastSubstituteReplacePart: undefined, jumpList: createCircularJumpList(), - macroModeState: createMacroState(), + macroModeState: new MacroModeState, // Recording latest f, t, F or T motion command. lastChararacterSearch: {increment:0, forward:true, selectedCharacter:''}, registerController: new RegisterController({}) }; + for (var optionName in options) { + var option = options[optionName]; + option.value = option.defaultValue; + } } var vimApi= { @@ -549,10 +661,13 @@ maybeInitVimState_: maybeInitVimState, InsertModeKey: InsertModeKey, - map: function(lhs, rhs) { + map: function(lhs, rhs, ctx) { // Add user defined key bindings. - exCommandDispatcher.map(lhs, rhs); + exCommandDispatcher.map(lhs, rhs, ctx); }, + setOption: setOption, + getOption: getOption, + defineOption: defineOption, defineEx: function(name, prefix, func){ if (name.indexOf(prefix) !== 0) { throw new Error('(Vim.defineEx) "'+prefix+'" is not a prefix of "'+name+'", command not registered'); @@ -566,9 +681,9 @@ var command; var vim = maybeInitVimState(cm); var macroModeState = vimGlobalState.macroModeState; - if (macroModeState.enteredMacroMode) { + if (macroModeState.isRecording) { if (key == 'q') { - actions.exitMacroRecordMode(); + macroModeState.exitMacroRecordMode(); vim.inputState = new InputState(); return; } @@ -598,6 +713,9 @@ // Increment count unless count is 0 and key is 0. vim.inputState.pushRepeatDigit(key); } + if (macroModeState.isRecording) { + logKey(macroModeState, key); + } return; } if (command.type == 'keyToKey') { @@ -606,7 +724,7 @@ this.handleKey(cm, command.toKeys[i]); } } else { - if (macroModeState.enteredMacroMode) { + if (macroModeState.isRecording) { logKey(macroModeState, key); } commandDispatcher.processCommand(cm, vim, command); @@ -627,7 +745,7 @@ this.motion = null; this.motionArgs = null; this.keyBuffer = []; // For matching multi-key commands. - this.registerName = null; // Defaults to the unamed register. + this.registerName = null; // Defaults to the unnamed register. } InputState.prototype.pushRepeatDigit = function(n) { if (!this.operator) { @@ -658,29 +776,41 @@ */ function Register(text, linewise) { this.clear(); - if (text) { - this.set(text, linewise); - } + this.keyBuffer = [text || '']; + this.insertModeChanges = []; + this.searchQueries = []; + this.linewise = !!linewise; } Register.prototype = { - set: function(text, linewise) { - this.text = text; + setText: function(text, linewise) { + this.keyBuffer = [text || '']; this.linewise = !!linewise; }, - append: function(text, linewise) { + pushText: function(text, linewise) { // if this register has ever been set to linewise, use linewise. - if (linewise || this.linewise) { - this.text += '\n' + text; + if (linewise) { + if (!this.linewise) { + this.keyBuffer.push('\n'); + } this.linewise = true; - } else { - this.text += text; } + this.keyBuffer.push(text); + }, + pushInsertModeChanges: function(changes) { + this.insertModeChanges.push(createInsertModeChanges(changes)); + }, + pushSearchQuery: function(query) { + this.searchQueries.push(query); }, clear: function() { - this.text = ''; + this.keyBuffer = []; + this.insertModeChanges = []; + this.searchQueries = []; this.linewise = false; }, - toString: function() { return this.text; } + toString: function() { + return this.keyBuffer.join(''); + } }; /* @@ -693,14 +823,16 @@ */ function RegisterController(registers) { this.registers = registers; - this.unamedRegister = registers['"'] = new Register(); + this.unnamedRegister = registers['"'] = new Register(); + registers['.'] = new Register(); + registers[':'] = new Register(); } RegisterController.prototype = { pushText: function(registerName, operator, text, linewise) { if (linewise && text.charAt(0) == '\n') { text = text.slice(1) + '\n'; } - if(linewise && text.charAt(text.length - 1) !== '\n'){ + if (linewise && text.charAt(text.length - 1) !== '\n'){ text += '\n'; } // Lowercase and uppercase registers refer to the same register. @@ -729,30 +861,26 @@ break; } // Make sure the unnamed register is set to what just happened - this.unamedRegister.set(text, linewise); + this.unnamedRegister.setText(text, linewise); return; } // If we've gotten to this point, we've actually specified a register var append = isUpperCase(registerName); if (append) { - register.append(text, linewise); - // The unamed register always has the same value as the last used - // register. - this.unamedRegister.append(text, linewise); + register.pushText(text, linewise); } else { - register.set(text, linewise); - this.unamedRegister.set(text, linewise); + register.setText(text, linewise); } - }, - setRegisterText: function(name, text, linewise) { - this.getRegister(name).set(text, linewise); + // The unnamed register always has the same value as the last used + // register. + this.unnamedRegister.setText(register.toString(), linewise); }, // Gets the register named @name. If one of @name doesn't already exist, - // create it. If @name is invalid, return the unamedRegister. + // create it. If @name is invalid, return the unnamedRegister. getRegister: function(name) { if (!this.isValidRegister(name)) { - return this.unamedRegister; + return this.unnamedRegister; } name = name.toLowerCase(); if (!this.registers[name]) { @@ -788,7 +916,7 @@ // Match commands that take as an argument. if (command.keys[keys.length - 1] == 'character') { selectedCharacter = keys[keys.length - 1]; - if(selectedCharacter.length>1){ + if (selectedCharacter.length>1){ switch(selectedCharacter){ case '': selectedCharacter='\n'; @@ -833,11 +961,17 @@ } else { // Find the best match in the list of matchedCommands. var context = vim.visualMode ? 'visual' : 'normal'; - var bestMatch = matchedCommands[0]; // Default to first in the list. + var bestMatch; // Default to first in the list. for (var i = 0; i < matchedCommands.length; i++) { - if (matchedCommands[i].context == context) { - bestMatch = matchedCommands[i]; + var current = matchedCommands[i]; + if (current.context == context) { + bestMatch = current; break; + } else if (!bestMatch && !current.context) { + // Only set an imperfect match to best match if no best match is + // set and the imperfect match is not restricted to another + // context. + bestMatch = current; } } return getFullyMatchedCommandOrNull(bestMatch); @@ -944,6 +1078,7 @@ return; } var forward = command.searchArgs.forward; + var wholeWordOnly = command.searchArgs.wholeWordOnly; getSearchState(cm).setReversed(!forward); var promptPrefix = (forward) ? '/' : '?'; var originalQuery = getSearchState(cm).getQuery(); @@ -964,6 +1099,10 @@ function onPromptClose(query) { cm.scrollTo(originalScrollPos.left, originalScrollPos.top); handleQuery(query, true /** ignoreCase */, true /** smartCase */); + var macroModeState = vimGlobalState.macroModeState; + if (macroModeState.isRecording) { + logSearchQuery(macroModeState, query); + } } function onPromptKeyUp(_e, query) { var parsedQuery; @@ -994,13 +1133,19 @@ } switch (command.searchArgs.querySrc) { case 'prompt': - showPrompt(cm, { - onClose: onPromptClose, - prefix: promptPrefix, - desc: searchPromptDesc, - onKeyUp: onPromptKeyUp, - onKeyDown: onPromptKeyDown - }); + var macroModeState = vimGlobalState.macroModeState; + if (macroModeState.isPlaying) { + var query = macroModeState.replaySearchQueries.shift(); + handleQuery(query, true /** ignoreCase */, false /** smartCase */); + } else { + showPrompt(cm, { + onClose: onPromptClose, + prefix: promptPrefix, + desc: searchPromptDesc, + onKeyUp: onPromptKeyUp, + onKeyDown: onPromptKeyDown + }); + } break; case 'wordUnderCursor': var word = expandWordUnderCursor(cm, false /** inclusive */, @@ -1018,8 +1163,8 @@ } var query = cm.getLine(word.start.line).substring(word.start.ch, word.end.ch); - if (isKeyword) { - query = '\\b' + query + '\\b'; + if (isKeyword && wholeWordOnly) { + query = '\\b' + query + '\\b'; } else { query = escapeRegex(query); } @@ -1070,8 +1215,8 @@ var operator = inputState.operator; var operatorArgs = inputState.operatorArgs || {}; var registerName = inputState.registerName; - var selectionEnd = cm.getCursor('head'); - var selectionStart = cm.getCursor('anchor'); + var selectionEnd = copyCursor(cm.getCursor('head')); + var selectionStart = copyCursor(cm.getCursor('anchor')); // The difference between cur and selection cursors are that cur is // being operated on and ignores that there is a selection. var curStart = copyCursor(selectionEnd); @@ -1127,7 +1272,7 @@ } // TODO: Handle null returns from motion commands better. if (!curEnd) { - curEnd = { ch: curStart.ch, line: curStart.line }; + curEnd = Pos(curStart.line, curStart.ch); } if (vim.visualMode) { // Check if the selection crossed over itself. Will need to shift @@ -1145,6 +1290,7 @@ selectionStart.ch -= 1; } selectionEnd = curEnd; + selectionStart = (motionResult instanceof Array) ? curStart : selectionStart; if (vim.visualLine) { if (cursorIsBefore(selectionStart, selectionEnd)) { selectionStart.ch = 0; @@ -1182,19 +1328,34 @@ motionArgs.inclusive = true; } // Swap start and end if motion was backward. - if (cursorIsBefore(curEnd, curStart)) { + if (curEnd && cursorIsBefore(curEnd, curStart)) { var tmp = curStart; curStart = curEnd; curEnd = tmp; inverted = true; + } else if (!curEnd) { + curEnd = copyCursor(curStart); } if (motionArgs.inclusive && !(vim.visualMode && inverted)) { // Move the selection end one to the right to include the last // character. curEnd.ch++; } + if (operatorArgs.selOffset) { + // Replaying a visual mode operation + curEnd.line = curStart.line + operatorArgs.selOffset.line; + if (operatorArgs.selOffset.line) {curEnd.ch = operatorArgs.selOffset.ch; } + else { curEnd.ch = curStart.ch + operatorArgs.selOffset.ch; } + } else if (vim.visualMode) { + var selOffset = Pos(); + selOffset.line = curEnd.line - curStart.line; + if (selOffset.line) { selOffset.ch = curEnd.ch; } + else { selOffset.ch = curEnd.ch - curStart.ch; } + operatorArgs.selOffset = selOffset; + } var linewise = motionArgs.linewise || - (vim.visualMode && vim.visualLine); + (vim.visualMode && vim.visualLine) || + operatorArgs.linewise; if (linewise) { // Expand selection to entire line. expandSelectionToLine(cm, curStart, curEnd); @@ -1214,7 +1375,7 @@ }, recordLastEdit: function(vim, inputState, actionCommand) { var macroModeState = vimGlobalState.macroModeState; - if (macroModeState.inReplay) { return; } + if (macroModeState.isPlaying) { return; } vim.lastEditInputState = inputState; vim.lastEditActionCommand = actionCommand; macroModeState.lastInsertModeChanges.changes = []; @@ -1230,22 +1391,22 @@ var motions = { moveToTopLine: function(cm, motionArgs) { var line = getUserVisibleLines(cm).top + motionArgs.repeat -1; - return { line: line, ch: findFirstNonWhiteSpaceCharacter(cm.getLine(line)) }; + return Pos(line, findFirstNonWhiteSpaceCharacter(cm.getLine(line))); }, moveToMiddleLine: function(cm) { var range = getUserVisibleLines(cm); var line = Math.floor((range.top + range.bottom) * 0.5); - return { line: line, ch: findFirstNonWhiteSpaceCharacter(cm.getLine(line)) }; + return Pos(line, findFirstNonWhiteSpaceCharacter(cm.getLine(line))); }, moveToBottomLine: function(cm, motionArgs) { var line = getUserVisibleLines(cm).bottom - motionArgs.repeat +1; - return { line: line, ch: findFirstNonWhiteSpaceCharacter(cm.getLine(line)) }; + return Pos(line, findFirstNonWhiteSpaceCharacter(cm.getLine(line))); }, expandToLine: function(cm, motionArgs) { // Expands forward to end of line, and then to next line if repeat is // >1. Does not handle backward motion! var cur = cm.getCursor(); - return { line: cur.line + motionArgs.repeat - 1, ch: Infinity }; + return Pos(cur.line + motionArgs.repeat - 1, Infinity); }, findNext: function(cm, motionArgs) { var state = getSearchState(cm); @@ -1259,13 +1420,24 @@ highlightSearchMatches(cm, query); return findNext(cm, prev/** prev */, query, motionArgs.repeat); }, - goToMark: function(_cm, motionArgs, vim) { + goToMark: function(cm, motionArgs, vim) { var mark = vim.marks[motionArgs.selectedCharacter]; if (mark) { - return mark.find(); + var pos = mark.find(); + return motionArgs.linewise ? { line: pos.line, ch: findFirstNonWhiteSpaceCharacter(cm.getLine(pos.line)) } : pos; } return null; }, + moveToOtherHighlightedEnd: function(cm) { + var curEnd = copyCursor(cm.getCursor('head')); + var curStart = copyCursor(cm.getCursor('anchor')); + if (cursorIsBefore(curStart, curEnd)) { + curEnd.ch += 1; + } else if (cursorIsBefore(curEnd, curStart)) { + curStart.ch -= 1; + } + return ([curEnd,curStart]); + }, jumpToMark: function(cm, motionArgs, vim) { var best = cm.getCursor(); for (var i = 0; i < motionArgs.repeat; i++) { @@ -1300,7 +1472,7 @@ // Vim places the cursor on the first non-whitespace character of // the line if there is one, else it places the cursor at the end // of the line, regardless of whether a mark was found. - best.ch = findFirstNonWhiteSpaceCharacter(cm.getLine(best.line)); + best = Pos(best.line, findFirstNonWhiteSpaceCharacter(cm.getLine(best.line))); } return best; }, @@ -1308,7 +1480,7 @@ var cur = cm.getCursor(); var repeat = motionArgs.repeat; var ch = motionArgs.forward ? cur.ch + repeat : cur.ch - repeat; - return { line: cur.line, ch: ch }; + return Pos(cur.line, ch); }, moveByLines: function(cm, motionArgs, vim) { var cur = cm.getCursor(); @@ -1339,12 +1511,12 @@ (line > last && cur.line == last)) { return; } - if(motionArgs.toFirstChar){ + if (motionArgs.toFirstChar){ endCh=findFirstNonWhiteSpaceCharacter(cm.getLine(line)); vim.lastHPos = endCh; } - vim.lastHSPos = cm.charCoords({line:line, ch:endCh},'div').left; - return { line: line, ch: endCh }; + vim.lastHSPos = cm.charCoords(Pos(line, endCh),'div').left; + return Pos(line, endCh); }, moveByDisplayLines: function(cm, motionArgs, vim) { var cur = cm.getCursor(); @@ -1366,7 +1538,7 @@ var goalCoords = { top: lastCharCoords.top + 8, left: vim.lastHSPos }; var res = cm.coordsChar(goalCoords, 'div'); } else { - var resCoords = cm.charCoords({ line: cm.firstLine(), ch: 0}, 'div'); + var resCoords = cm.charCoords(Pos(cm.firstLine(), 0), 'div'); resCoords.left = vim.lastHSPos; res = cm.coordsChar(resCoords, 'div'); } @@ -1380,10 +1552,7 @@ // will move the cursor to where it should be in the end. var curStart = cm.getCursor(); var repeat = motionArgs.repeat; - cm.moveV((motionArgs.forward ? repeat : -repeat), 'page'); - var curEnd = cm.getCursor(); - cm.setCursor(curStart); - return curEnd; + return cm.findPosV(curStart, (motionArgs.forward ? repeat : -repeat), 'page'); }, moveByParagraph: function(cm, motionArgs) { var line = cm.getCursor().line; @@ -1399,7 +1568,7 @@ line += inc; } } - return { line: line, ch: 0 }; + return Pos(line, 0); }, moveByScroll: function(cm, motionArgs, vim) { var scrollbox = cm.getScrollInfo(); @@ -1428,7 +1597,7 @@ motionArgs.selectedCharacter); var increment = motionArgs.forward ? -1 : 1; recordLastCharacterSearch(increment, motionArgs); - if(!curEnd)return cm.getCursor(); + if (!curEnd) return null; curEnd.ch += increment; return curEnd; }, @@ -1453,7 +1622,7 @@ moveToEol: function(cm, motionArgs, vim) { var cur = cm.getCursor(); vim.lastHPos = Infinity; - var retval={ line: cur.line + motionArgs.repeat - 1, ch: Infinity }; + var retval= Pos(cur.line + motionArgs.repeat - 1, Infinity); var end=cm.clipPos(retval); end.ch--; vim.lastHSPos = cm.charCoords(end,'div').left; @@ -1463,8 +1632,8 @@ // Go to the start of the line where the text begins, or the end for // whitespace-only lines var cursor = cm.getCursor(); - return { line: cursor.line, - ch: findFirstNonWhiteSpaceCharacter(cm.getLine(cursor.line)) }; + return Pos(cursor.line, + findFirstNonWhiteSpaceCharacter(cm.getLine(cursor.line))); }, moveToMatchedSymbol: function(cm) { var cursor = cm.getCursor(); @@ -1472,53 +1641,80 @@ var ch = cursor.ch; var lineText = cm.getLine(line); var symbol; - var startContext = cm.getTokenAt(cursor).type; - var startCtxLevel = getContextLevel(startContext); do { symbol = lineText.charAt(ch++); if (symbol && isMatchableSymbol(symbol)) { - var endContext = cm.getTokenAt({line:line, ch:ch}).type; - var endCtxLevel = getContextLevel(endContext); - if (startCtxLevel >= endCtxLevel) { + var style = cm.getTokenTypeAt(Pos(line, ch)); + if (style !== "string" && style !== "comment") { break; } } } while (symbol); if (symbol) { - return findMatchedSymbol(cm, {line:line, ch:ch-1}, symbol); + var matched = cm.findMatchingBracket(Pos(line, ch)); + return matched.to; } else { return cursor; } }, moveToStartOfLine: function(cm) { var cursor = cm.getCursor(); - return { line: cursor.line, ch: 0 }; + return Pos(cursor.line, 0); }, moveToLineOrEdgeOfDocument: function(cm, motionArgs) { var lineNum = motionArgs.forward ? cm.lastLine() : cm.firstLine(); if (motionArgs.repeatIsExplicit) { lineNum = motionArgs.repeat - cm.getOption('firstLineNumber'); } - return { line: lineNum, - ch: findFirstNonWhiteSpaceCharacter(cm.getLine(lineNum)) }; + return Pos(lineNum, + findFirstNonWhiteSpaceCharacter(cm.getLine(lineNum))); }, textObjectManipulation: function(cm, motionArgs) { + // TODO: lots of possible exceptions that can be thrown here. Try da( + // outside of a () block. + + // TODO: adding <> >< to this map doesn't work, presumably because + // they're operators + var mirroredPairs = {'(': ')', ')': '(', + '{': '}', '}': '{', + '[': ']', ']': '['}; + var selfPaired = {'\'': true, '"': true}; + var character = motionArgs.selectedCharacter; + // 'b' refers to '()' block. + // 'B' refers to '{}' block. + if (character == 'b') { + character = '('; + } else if (character == 'B') { + character = '{'; + } + // Inclusive is the difference between a and i // TODO: Instead of using the additional text object map to perform text // object operations, merge the map into the defaultKeyMap and use // motionArgs to define behavior. Define separate entries for 'aw', // 'iw', 'a[', 'i[', etc. var inclusive = !motionArgs.textObjectInner; - if (!textObjects[character]) { + + var tmp; + if (mirroredPairs[character]) { + tmp = selectCompanionObject(cm, character, inclusive); + } else if (selfPaired[character]) { + tmp = findBeginningAndEnd(cm, character, inclusive); + } else if (character === 'W') { + tmp = expandWordUnderCursor(cm, inclusive, true /** forward */, + true /** bigWord */); + } else if (character === 'w') { + tmp = expandWordUnderCursor(cm, inclusive, true /** forward */, + false /** bigWord */); + } else { // No text object defined for this, don't move. return null; } - var tmp = textObjects[character](cm, inclusive); - var start = tmp.start; - var end = tmp.end; - return [start, end]; + + return [tmp.start, tmp.end]; }, + repeatLastCharacterSearch: function(cm, motionArgs) { var lastSearch = vimGlobalState.lastChararacterSearch; var repeat = motionArgs.repeat; @@ -1636,9 +1832,46 @@ markPos = markPos ? markPos : cm.getCursor(); cm.setCursor(markPos); }, + scroll: function(cm, actionArgs, vim) { + if (vim.visualMode) { + return; + } + var repeat = actionArgs.repeat || 1; + var lineHeight = cm.defaultTextHeight(); + var top = cm.getScrollInfo().top; + var delta = lineHeight * repeat; + var newPos = actionArgs.forward ? top + delta : top - delta; + var cursor = copyCursor(cm.getCursor()); + var cursorCoords = cm.charCoords(cursor, 'local'); + if (actionArgs.forward) { + if (newPos > cursorCoords.top) { + cursor.line += (newPos - cursorCoords.top) / lineHeight; + cursor.line = Math.ceil(cursor.line); + cm.setCursor(cursor); + cursorCoords = cm.charCoords(cursor, 'local'); + cm.scrollTo(null, cursorCoords.top); + } else { + // Cursor stays within bounds. Just reposition the scroll window. + cm.scrollTo(null, newPos); + } + } else { + var newBottom = newPos + cm.getScrollInfo().clientHeight; + if (newBottom < cursorCoords.bottom) { + cursor.line -= (cursorCoords.bottom - newBottom) / lineHeight; + cursor.line = Math.floor(cursor.line); + cm.setCursor(cursor); + cursorCoords = cm.charCoords(cursor, 'local'); + cm.scrollTo( + null, cursorCoords.bottom - cm.getScrollInfo().clientHeight); + } else { + // Cursor stays within bounds. Just reposition the scroll window. + cm.scrollTo(null, newPos); + } + } + }, scrollToCursor: function(cm, actionArgs) { var lineNum = cm.getCursor().line; - var charCoords = cm.charCoords({line: lineNum, ch: 0}, 'local'); + var charCoords = cm.charCoords(Pos(lineNum, 0), 'local'); var height = cm.getScrollInfo().clientHeight; var y = charCoords.top; var lineHeight = charCoords.bottom - y; @@ -1652,29 +1885,21 @@ } cm.scrollTo(null, y); }, - replayMacro: function(cm, actionArgs) { + replayMacro: function(cm, actionArgs, vim) { var registerName = actionArgs.selectedCharacter; var repeat = actionArgs.repeat; var macroModeState = vimGlobalState.macroModeState; if (registerName == '@') { registerName = macroModeState.latestRegister; } - var keyBuffer = parseRegisterToKeyBuffer(macroModeState, registerName); while(repeat--){ - executeMacroKeyBuffer(cm, macroModeState, keyBuffer); + executeMacroRegister(cm, vim, macroModeState, registerName); } }, - exitMacroRecordMode: function() { - var macroModeState = vimGlobalState.macroModeState; - macroModeState.toggle(); - parseKeyBufferToRegister(macroModeState.latestRegister, - macroModeState.macroKeyBuffer); - }, enterMacroRecordMode: function(cm, actionArgs) { var macroModeState = vimGlobalState.macroModeState; var registerName = actionArgs.selectedCharacter; - macroModeState.toggle(cm, registerName); - emptyMacroKeyBuffer(macroModeState); + macroModeState.enterMacroRecordMode(cm, registerName); }, enterInsertMode: function(cm, actionArgs, vim) { if (cm.getOption('readOnly')) { return; } @@ -1683,7 +1908,7 @@ var insertAt = (actionArgs) ? actionArgs.insertAt : null; if (insertAt == 'eol') { var cursor = cm.getCursor(); - cursor = { line: cursor.line, ch: lineLength(cm, cursor.line) }; + cursor = Pos(cursor.line, lineLength(cm, cursor.line)); cm.setCursor(cursor); } else if (insertAt == 'charAfter') { cm.setCursor(offsetCursor(cm.getCursor(), 0, 1)); @@ -1691,6 +1916,7 @@ cm.setCursor(motions.moveToFirstNonWhiteSpaceCharacter(cm)); } cm.setOption('keyMap', 'vim-insert'); + cm.setOption('disableInput', false); if (actionArgs && actionArgs.replace) { // Handle Replace-mode as a special case of insert mode. cm.toggleOverwrite(true); @@ -1700,10 +1926,9 @@ cm.setOption('keyMap', 'vim-insert'); CodeMirror.signal(cm, "vim-mode-change", {mode: "insert"}); } - if (!vimGlobalState.macroModeState.inReplay) { + if (!vimGlobalState.macroModeState.isPlaying) { // Only record if not replaying. cm.on('change', onChange); - cm.on('cursorActivity', onCursorActivity); CodeMirror.on(cm.getInputField(), 'keydown', onKeyEventTargetKeyDown); } }, @@ -1720,15 +1945,13 @@ vim.visualLine = !!actionArgs.linewise; if (vim.visualLine) { curStart.ch = 0; - curEnd = clipCursorToContent(cm, { - line: curStart.line + repeat - 1, - ch: lineLength(cm, curStart.line) - }, true /** includeLineBreak */); + curEnd = clipCursorToContent( + cm, Pos(curStart.line + repeat - 1, lineLength(cm, curStart.line)), + true /** includeLineBreak */); } else { - curEnd = clipCursorToContent(cm, { - line: curStart.line, - ch: curStart.ch + repeat - }, true /** includeLineBreak */); + curEnd = clipCursorToContent( + cm, Pos(curStart.line, curStart.ch + repeat), + true /** includeLineBreak */); } // Make the initial selection. if (!actionArgs.repeatIsExplicit && !vim.visualLine) { @@ -1768,6 +1991,21 @@ updateMark(cm, vim, '>', cursorIsBefore(curStart, curEnd) ? curEnd : curStart); }, + reselectLastSelection: function(cm, _actionArgs, vim) { + if (vim.lastSelection) { + var lastSelection = vim.lastSelection; + cm.setSelection(lastSelection.curStart, lastSelection.curEnd); + if (lastSelection.visualLine) { + vim.visualMode = true; + vim.visualLine = true; + } + else { + vim.visualMode = true; + vim.visualLine = false; + } + CodeMirror.signal(cm, "vim-mode-change", {mode: "visual", subMode: vim.visualLine ? "linewise" : ""}); + } + }, joinLines: function(cm, actionArgs, vim) { var curStart, curEnd; if (vim.visualMode) { @@ -1778,29 +2016,29 @@ // Repeat is the number of lines to join. Minimum 2 lines. var repeat = Math.max(actionArgs.repeat, 2); curStart = cm.getCursor(); - curEnd = clipCursorToContent(cm, { line: curStart.line + repeat - 1, - ch: Infinity }); + curEnd = clipCursorToContent(cm, Pos(curStart.line + repeat - 1, + Infinity)); } var finalCh = 0; cm.operation(function() { for (var i = curStart.line; i < curEnd.line; i++) { finalCh = lineLength(cm, curStart.line); - var tmp = { line: curStart.line + 1, - ch: lineLength(cm, curStart.line + 1) }; + var tmp = Pos(curStart.line + 1, + lineLength(cm, curStart.line + 1)); var text = cm.getRange(curStart, tmp); text = text.replace(/\n\s*/g, ' '); cm.replaceRange(text, curStart, tmp); } - var curFinalPos = { line: curStart.line, ch: finalCh }; + var curFinalPos = Pos(curStart.line, finalCh); cm.setCursor(curFinalPos); }); }, newLineAndEnterInsertMode: function(cm, actionArgs, vim) { vim.insertMode = true; - var insertAt = cm.getCursor(); + var insertAt = copyCursor(cm.getCursor()); if (insertAt.line === cm.firstLine() && !actionArgs.after) { // Special case for inserting newline before start of document. - cm.replaceRange('\n', { line: cm.firstLine(), ch: 0 }); + cm.replaceRange('\n', Pos(cm.firstLine(), 0)); cm.setCursor(cm.firstLine(), 0); } else { insertAt.line = (actionArgs.after) ? insertAt.line : @@ -1814,14 +2052,43 @@ this.enterInsertMode(cm, { repeat: actionArgs.repeat }, vim); }, paste: function(cm, actionArgs) { - var cur = cm.getCursor(); + var cur = copyCursor(cm.getCursor()); var register = vimGlobalState.registerController.getRegister( actionArgs.registerName); - if (!register.text) { + var text = register.toString(); + if (!text) { return; } - for (var text = '', i = 0; i < actionArgs.repeat; i++) { - text += register.text; + if (actionArgs.matchIndent) { + // length that considers tabs and cm.options.tabSize + var whitespaceLength = function(str) { + var tabs = (str.split("\t").length - 1); + var spaces = (str.split(" ").length - 1); + return tabs * cm.options.tabSize + spaces * 1; + }; + var currentLine = cm.getLine(cm.getCursor().line); + var indent = whitespaceLength(currentLine.match(/^\s*/)[0]); + // chomp last newline b/c don't want it to match /^\s*/gm + var chompedText = text.replace(/\n$/, ''); + var wasChomped = text !== chompedText; + var firstIndent = whitespaceLength(text.match(/^\s*/)[0]); + var text = chompedText.replace(/^\s*/gm, function(wspace) { + var newIndent = indent + (whitespaceLength(wspace) - firstIndent); + if (newIndent < 0) { + return ""; + } + else if (cm.options.indentWithTabs) { + var quotient = Math.floor(newIndent / cm.options.tabSize); + return Array(quotient + 1).join('\t'); + } + else { + return Array(newIndent + 1).join(' '); + } + }); + text += wasChomped ? "\n" : ""; + } + if (actionArgs.repeat > 1) { + var text = Array(actionArgs.repeat + 1).join(text); } var linewise = register.linewise; if (linewise) { @@ -1841,11 +2108,13 @@ var curPosFinal; var idx; if (linewise && actionArgs.after) { - curPosFinal = { line: cur.line + 1, - ch: findFirstNonWhiteSpaceCharacter(cm.getLine(cur.line + 1)) }; + curPosFinal = Pos( + cur.line + 1, + findFirstNonWhiteSpaceCharacter(cm.getLine(cur.line + 1))); } else if (linewise && !actionArgs.after) { - curPosFinal = { line: cur.line, - ch: findFirstNonWhiteSpaceCharacter(cm.getLine(cur.line)) }; + curPosFinal = Pos( + cur.line, + findFirstNonWhiteSpaceCharacter(cm.getLine(cur.line))); } else if (!linewise && actionArgs.after) { idx = cm.indexFromPos(cur); curPosFinal = cm.posFromIndex(idx + text.length - 1); @@ -1876,22 +2145,22 @@ var curStart = cm.getCursor(); var replaceTo; var curEnd; - if(vim.visualMode){ + if (vim.visualMode){ curStart=cm.getCursor('start'); curEnd=cm.getCursor('end'); // workaround to catch the character under the cursor // existing workaround doesn't cover actions - curEnd=cm.clipPos({line: curEnd.line, ch: curEnd.ch+1}); + curEnd=cm.clipPos(Pos(curEnd.line, curEnd.ch+1)); }else{ var line = cm.getLine(curStart.line); replaceTo = curStart.ch + actionArgs.repeat; if (replaceTo > line.length) { replaceTo=line.length; } - curEnd = { line: curStart.line, ch: replaceTo }; + curEnd = Pos(curStart.line, replaceTo); } - if(replaceWith=='\n'){ - if(!vim.visualMode) cm.replaceRange('', curStart, curEnd); + if (replaceWith=='\n'){ + if (!vim.visualMode) cm.replaceRange('', curStart, curEnd); // special case, where vim help says to replace by just one line-break (CodeMirror.commands.newlineAndIndentContinueComment || CodeMirror.commands.newlineAndIndent)(cm); }else { @@ -1899,7 +2168,7 @@ //replace all characters in range by selected, but keep linebreaks replaceWithStr=replaceWithStr.replace(/[^\n]/g,replaceWith); cm.replaceRange(replaceWithStr, curStart, curEnd); - if(vim.visualMode){ + if (vim.visualMode){ cm.setCursor(curStart); exitVisualMode(cm); }else{ @@ -1920,20 +2189,20 @@ token = match[0]; start = match.index; end = start + token.length; - if(cur.ch < end)break; + if (cur.ch < end)break; } - if(!actionArgs.backtrack && (end <= cur.ch))return; + if (!actionArgs.backtrack && (end <= cur.ch))return; if (token) { var increment = actionArgs.increase ? 1 : -1; var number = parseInt(token) + (increment * actionArgs.repeat); - var from = {ch:start, line:cur.line}; - var to = {ch:end, line:cur.line}; + var from = Pos(cur.line, start); + var to = Pos(cur.line, end); numberStr = number.toString(); cm.replaceRange(numberStr, from, to); } else { return; } - cm.setCursor({line: cur.line, ch: start + numberStr.length - 1}); + cm.setCursor(Pos(cur.line, start + numberStr.length - 1)); }, repeatLastEdit: function(cm, actionArgs, vim) { var lastEditInputState = vim.lastEditInputState; @@ -1945,36 +2214,22 @@ repeat = vim.lastEditInputState.repeatOverride || repeat; } repeatLastEdit(cm, vim, repeat, false /** repeatForInsert */); - } - }; - - var textObjects = { - // TODO: lots of possible exceptions that can be thrown here. Try da( - // outside of a () block. - // TODO: implement text objects for the reverse like }. Should just be - // an additional mapping after moving to the defaultKeyMap. - 'w': function(cm, inclusive) { - return expandWordUnderCursor(cm, inclusive, true /** forward */, - false /** bigWord */); }, - 'W': function(cm, inclusive) { - return expandWordUnderCursor(cm, inclusive, - true /** forward */, true /** bigWord */); - }, - '{': function(cm, inclusive) { - return selectCompanionObject(cm, '}', inclusive); - }, - '(': function(cm, inclusive) { - return selectCompanionObject(cm, ')', inclusive); - }, - '[': function(cm, inclusive) { - return selectCompanionObject(cm, ']', inclusive); - }, - '\'': function(cm, inclusive) { - return findBeginningAndEnd(cm, "'", inclusive); - }, - '"': function(cm, inclusive) { - return findBeginningAndEnd(cm, '"', inclusive); + changeCase: function(cm, actionArgs, vim) { + var selectedAreaRange = getSelectedAreaRange(cm, vim); + var selectionStart = selectedAreaRange[0]; + var selectionEnd = selectedAreaRange[1]; + var toLower = actionArgs.toLower; + if (cursorIsBefore(selectionEnd, selectionStart)) { + var tmp = selectionStart; + selectionStart = selectionEnd; + selectionEnd = tmp; + } else { + selectionEnd = cm.clipPos(Pos(selectionEnd.line, selectionEnd.ch+1)); + } + var text = cm.getRange(selectionStart, selectionEnd); + cm.replaceRange(toLower ? text.toLowerCase() : text.toUpperCase(), selectionStart, selectionEnd); + cm.setCursor(selectionStart); } }; @@ -1991,7 +2246,7 @@ var maxCh = lineLength(cm, line) - 1; maxCh = (includeLineBreak) ? maxCh + 1 : maxCh; var ch = Math.min(Math.max(0, cur.ch), maxCh); - return { line: line, ch: ch }; + return Pos(line, ch); } function copyArgs(args) { var ret = {}; @@ -2003,7 +2258,7 @@ return ret; } function offsetCursor(cur, offsetLine, offsetCh) { - return { line: cur.line + offsetLine, ch: cur.ch + offsetCh }; + return Pos(cur.line + offsetLine, cur.ch + offsetCh); } function matchKeysPartial(pressed, mapped) { for (var i = 0; i < pressed.length; i++) { @@ -2022,7 +2277,7 @@ }; } function copyCursor(cur) { - return { line: cur.line, ch: cur.ch }; + return Pos(cur.line, cur.ch); } function cursorEqual(cur1, cur2) { return cur1.ch == cur2.ch && cur1.line == cur2.line; @@ -2057,10 +2312,30 @@ function escapeRegex(s) { return s.replace(/([.?*+$\[\]\/\\(){}|\-])/g, '\\$1'); } + function getSelectedAreaRange(cm, vim) { + var selectionStart = cm.getCursor('anchor'); + var selectionEnd = cm.getCursor('head'); + var lastSelection = vim.lastSelection; + if (!vim.visualMode) { + var line = lastSelection.curEnd.line - lastSelection.curStart.line; + var ch = line ? lastSelection.curEnd.ch : lastSelection.curEnd.ch - lastSelection.curStart.ch; + selectionEnd = {line: selectionEnd.line + line, ch: line ? selectionEnd.ch : ch + selectionEnd.ch}; + if (lastSelection.visualLine) { + return [{line: selectionStart.line, ch: 0}, {line: selectionEnd.line, ch: lineLength(cm, selectionEnd.line)}]; + } + } else { + exitVisualMode(cm); + } + return [selectionStart, selectionEnd]; + } function exitVisualMode(cm) { cm.off('mousedown', exitVisualMode); var vim = cm.state.vim; + // can't use selection state here because yank has already reset its cursor + vim.lastSelection = {'curStart': vim.marks['<'].find(), + 'curEnd': vim.marks['>'].find(), 'visualMode': vim.visualMode, + 'visualLine': vim.visualLine}; vim.visualMode = false; vim.visualLine = false; var selectionStart = cm.getCursor('anchor'); @@ -2179,12 +2454,12 @@ } } - return { start: { line: cur.line, ch: wordStart }, - end: { line: cur.line, ch: wordEnd }}; + return { start: Pos(cur.line, wordStart), + end: Pos(cur.line, wordEnd) }; } function recordJumpPosition(cm, oldCur, newCur) { - if(!cursorEqual(oldCur, newCur)) { + if (!cursorEqual(oldCur, newCur)) { vimGlobalState.jumpList.add(cm, oldCur, newCur); } } @@ -2207,7 +2482,7 @@ isComplete: function(state) { if (state.nextCh === state.symb) { state.depth++; - if(state.depth >= 1)return true; + if (state.depth >= 1)return true; } else if (state.nextCh === state.reverseSymb) { state.depth--; } @@ -2239,7 +2514,7 @@ state.reverseSymb = state.symb === '{' ? '}' : '{'; }, isComplete: function(state) { - if(state.nextCh === state.symb)return true; + if (state.nextCh === state.symb)return true; return false; } }, @@ -2261,14 +2536,14 @@ } state.depth--; } - if(token === 'else' && state.depth === 0)return true; + if (token === 'else' && state.depth === 0)return true; } return false; } } }; function findSymbol(cm, repeat, forward, symb) { - var cur = cm.getCursor(); + var cur = copyCursor(cm.getCursor()); var increment = forward ? 1 : -1; var endLine = forward ? cm.lineCount() : -1; var curCh = cur.ch; @@ -2286,10 +2561,10 @@ curMoveThrough: false }; var mode = symbolToMode[symb]; - if(!mode)return cur; + if (!mode)return cur; var init = findSymbolModes[mode].init; var isComplete = findSymbolModes[mode].isComplete; - if(init)init(state); + if (init) { init(state); } while (line !== endLine && repeat) { state.index += increment; state.nextCh = state.lineText.charAt(state.index); @@ -2311,7 +2586,7 @@ } } if (state.nextCh || state.curMoveThrough) { - return { line: line, ch: state.index }; + return Pos(line, state.index); } return cur; } @@ -2425,7 +2700,7 @@ break; } words.push(word); - cur = {line: word.line, ch: forward ? (word.to - 1) : word.from}; + cur = Pos(word.line, forward ? (word.to - 1) : word.from); } var shortCircuit = words.length != repeat; var firstWord = words[0]; @@ -2436,19 +2711,19 @@ // We did not start in the middle of a word. Discard the extra word at the end. lastWord = words.pop(); } - return {line: lastWord.line, ch: lastWord.from}; + return Pos(lastWord.line, lastWord.from); } else if (forward && wordEnd) { - return {line: lastWord.line, ch: lastWord.to - 1}; + return Pos(lastWord.line, lastWord.to - 1); } else if (!forward && wordEnd) { // ge if (!shortCircuit && (firstWord.to != curStart.ch || firstWord.line != curStart.line)) { // We did not start in the middle of a word. Discard the extra word at the end. lastWord = words.pop(); } - return {line: lastWord.line, ch: lastWord.to}; + return Pos(lastWord.line, lastWord.to); } else { // b - return {line: lastWord.line, ch: lastWord.from}; + return Pos(lastWord.line, lastWord.from); } } @@ -2464,14 +2739,14 @@ } start = idx; } - return { line: cm.getCursor().line, ch: idx }; + return Pos(cm.getCursor().line, idx); } function moveToColumn(cm, repeat) { // repeat is always >= 1, so repeat - 1 always corresponds // to the column we want to go to. var line = cm.getCursor().line; - return clipCursorToContent(cm, { line: line, ch: repeat - 1 }); + return clipCursorToContent(cm, Pos(line, repeat - 1)); } function updateMark(cm, vim, markName, pos) { @@ -2505,75 +2780,46 @@ return idx; } - function getContextLevel(ctx) { - return (ctx === 'string' || ctx === 'comment') ? 1 : 0; - } + // TODO: perhaps this finagling of start and end positions belonds + // in codmirror/replaceRange? + function selectCompanionObject(cm, symb, inclusive) { + var cur = cm.getCursor(), start, end; - function findMatchedSymbol(cm, cur, symb) { - var line = cur.line; - var ch = cur.ch; - symb = symb ? symb : cm.getLine(line).charAt(ch); + var bracketRegexp = ({ + '(': /[()]/, ')': /[()]/, + '[': /[[\]]/, ']': /[[\]]/, + '{': /[{}]/, '}': /[{}]/})[symb]; + var openSym = ({ + '(': '(', ')': '(', + '[': '[', ']': '[', + '{': '{', '}': '{'})[symb]; + var curChar = cm.getLine(cur.line).charAt(cur.ch); + // Due to the behavior of scanForBracket, we need to add an offset if the + // cursor is on a matching open bracket. + var offset = curChar === openSym ? 1 : 0; - var symbContext = cm.getTokenAt({line:line, ch:ch+1}).type; - var symbCtxLevel = getContextLevel(symbContext); + start = cm.scanForBracket(Pos(cur.line, cur.ch + offset), -1, null, {'bracketRegex': bracketRegexp}); + end = cm.scanForBracket(Pos(cur.line, cur.ch + offset), 1, null, {'bracketRegex': bracketRegexp}); - var reverseSymb = ({ - '(': ')', ')': '(', - '[': ']', ']': '[', - '{': '}', '}': '{'})[symb]; - - // Couldn't find a matching symbol, abort - if (!reverseSymb) { - return cur; + if (!start || !end) { + return { start: cur, end: cur }; } - // set our increment to move forward (+1) or backwards (-1) - // depending on which bracket we're matching - var increment = ({'(': 1, '{': 1, '[': 1})[symb] || -1; - var endLine = increment === 1 ? cm.lineCount() : -1; - var depth = 1, nextCh = symb, index = ch, lineText = cm.getLine(line); - // Simple search for closing paren--just count openings and closings till - // we find our match - // TODO: use info from CodeMirror to ignore closing brackets in comments - // and quotes, etc. - while (line !== endLine && depth > 0) { - index += increment; - nextCh = lineText.charAt(index); - if (!nextCh) { - line += increment; - lineText = cm.getLine(line) || ''; - if (increment > 0) { - index = 0; - } else { - var lineLen = lineText.length; - index = (lineLen > 0) ? (lineLen-1) : 0; - } - nextCh = lineText.charAt(index); - } - var revSymbContext = cm.getTokenAt({line:line, ch:index+1}).type; - var revSymbCtxLevel = getContextLevel(revSymbContext); - if (symbCtxLevel >= revSymbCtxLevel) { - if (nextCh === symb) { - depth++; - } else if (nextCh === reverseSymb) { - depth--; - } - } + start = start.pos; + end = end.pos; + + if ((start.line == end.line && start.ch > end.ch) + || (start.line > end.line)) { + var tmp = start; + start = end; + end = tmp; } - if (nextCh) { - return { line: line, ch: index }; + if (inclusive) { + end.ch += 1; + } else { + start.ch += 1; } - return cur; - } - - function selectCompanionObject(cm, revSymb, inclusive) { - var cur = cm.getCursor(); - - var end = findMatchedSymbol(cm, cur, revSymb); - var start = findMatchedSymbol(cm, end); - start.ch += inclusive ? 1 : 0; - end.ch += inclusive ? 0 : 1; return { start: start, end: end }; } @@ -2582,7 +2828,7 @@ // have identical opening and closing symbols // TODO support across multiple lines function findBeginningAndEnd(cm, symb, inclusive) { - var cur = cm.getCursor(); + var cur = copyCursor(cm.getCursor()); var line = cm.getLine(cur.line); var chars = line.split(''); var start, end, i, len; @@ -2634,12 +2880,13 @@ } return { - start: { line: cur.line, ch: start }, - end: { line: cur.line, ch: end } + start: Pos(cur.line, start), + end: Pos(cur.line, end) }; } // Search functions + defineOption('pcre', true, 'boolean'); function SearchState() {} SearchState.prototype = { getQuery: function() { @@ -2683,10 +2930,109 @@ if (!escapeNextChar && c == '/') { slashes.push(i); } - escapeNextChar = (c == '\\'); + escapeNextChar = !escapeNextChar && (c == '\\'); } return slashes; } + + // Translates a search string from ex (vim) syntax into javascript form. + function translateRegex(str) { + // When these match, add a '\' if unescaped or remove one if escaped. + var specials = '|(){'; + // Remove, but never add, a '\' for these. + var unescape = '}'; + var escapeNextChar = false; + var out = []; + for (var i = -1; i < str.length; i++) { + var c = str.charAt(i) || ''; + var n = str.charAt(i+1) || ''; + var specialComesNext = (n && specials.indexOf(n) != -1); + if (escapeNextChar) { + if (c !== '\\' || !specialComesNext) { + out.push(c); + } + escapeNextChar = false; + } else { + if (c === '\\') { + escapeNextChar = true; + // Treat the unescape list as special for removing, but not adding '\'. + if (n && unescape.indexOf(n) != -1) { + specialComesNext = true; + } + // Not passing this test means removing a '\'. + if (!specialComesNext || n === '\\') { + out.push(c); + } + } else { + out.push(c); + if (specialComesNext && n !== '\\') { + out.push('\\'); + } + } + } + } + return out.join(''); + } + + // Translates the replace part of a search and replace from ex (vim) syntax into + // javascript form. Similar to translateRegex, but additionally fixes back references + // (translates '\[0..9]' to '$[0..9]') and follows different rules for escaping '$'. + function translateRegexReplace(str) { + var escapeNextChar = false; + var out = []; + for (var i = -1; i < str.length; i++) { + var c = str.charAt(i) || ''; + var n = str.charAt(i+1) || ''; + if (escapeNextChar) { + // At any point in the loop, escapeNextChar is true if the previous + // character was a '\' and was not escaped. + out.push(c); + escapeNextChar = false; + } else { + if (c === '\\') { + escapeNextChar = true; + if ((isNumber(n) || n === '$')) { + out.push('$'); + } else if (n !== '/' && n !== '\\') { + out.push('\\'); + } + } else { + if (c === '$') { + out.push('$'); + } + out.push(c); + if (n === '/') { + out.push('\\'); + } + } + } + } + return out.join(''); + } + + // Unescape \ and / in the replace part, for PCRE mode. + function unescapeRegexReplace(str) { + var stream = new CodeMirror.StringStream(str); + var output = []; + while (!stream.eol()) { + // Search for \. + while (stream.peek() && stream.peek() != '\\') { + output.push(stream.next()); + } + if (stream.match('\\/', true)) { + // \/ => / + output.push('/'); + } else if (stream.match('\\\\', true)) { + // \\ => \ + output.push('\\'); + } else { + // Don't change anything + output.push(stream.next()); + } + } + return output.join(''); + } + /** * Extract the regular expression from the query and return a Regexp object. * Returns null if the query is blank. @@ -2718,6 +3064,9 @@ if (!regexPart) { return null; } + if (!getOption('pcre')) { + regexPart = translateRegex(regexPart); + } if (smartCase) { ignoreCase = (/^[^A-Z]*$/).test(regexPart); } @@ -2842,7 +3191,7 @@ // SearchCursor may have returned null because it hit EOF, wrap // around and try again. cursor = cm.getSearchCursor(query, - (prev) ? { line: cm.lastLine() } : {line: cm.firstLine(), ch: 0} ); + (prev) ? Pos(cm.lastLine()) : Pos(cm.firstLine(), 0) ); if (!cursor.find(prev)) { return; } @@ -2896,14 +3245,19 @@ // pair of commands that have a shared prefix, at least one of their // shortNames must not match the prefix of the other command. var defaultExCommandMap = [ - { name: 'map', type: 'builtIn' }, - { name: 'write', shortName: 'w', type: 'builtIn' }, - { name: 'undo', shortName: 'u', type: 'builtIn' }, - { name: 'redo', shortName: 'red', type: 'builtIn' }, - { name: 'sort', shortName: 'sor', type: 'builtIn'}, - { name: 'substitute', shortName: 's', type: 'builtIn'}, - { name: 'nohlsearch', shortName: 'noh', type: 'builtIn'}, - { name: 'delmarks', shortName: 'delm', type: 'builtin'} + { name: 'map' }, + { name: 'nmap', shortName: 'nm' }, + { name: 'vmap', shortName: 'vm' }, + { name: 'unmap' }, + { name: 'write', shortName: 'w' }, + { name: 'undo', shortName: 'u' }, + { name: 'redo', shortName: 'red' }, + { name: 'set', shortName: 'set' }, + { name: 'sort', shortName: 'sor' }, + { name: 'substitute', shortName: 's' }, + { name: 'nohlsearch', shortName: 'noh' }, + { name: 'delmarks', shortName: 'delm' }, + { name: 'registers', shortName: 'reg', excludeFromCommandHistory: true } ]; Vim.ExCommandDispatcher = function() { this.buildCommandMap_(); @@ -2911,17 +3265,21 @@ Vim.ExCommandDispatcher.prototype = { processCommand: function(cm, input) { var vim = cm.state.vim; + var commandHistoryRegister = vimGlobalState.registerController.getRegister(':'); + var previousCommand = commandHistoryRegister.toString(); if (vim.visualMode) { exitVisualMode(cm); } var inputStream = new CodeMirror.StringStream(input); + // update ": with the latest command whether valid or invalid + commandHistoryRegister.setText(input); var params = {}; params.input = input; try { this.parseInput_(cm, inputStream, params); } catch(e) { showConfirm(cm, e); - return; + throw e; } var commandName; if (!params.commandName) { @@ -2933,6 +3291,9 @@ var command = this.matchCommand_(params.commandName); if (command) { commandName = command.name; + if (command.excludeFromCommandHistory) { + commandHistoryRegister.setText(previousCommand); + } this.parseCommandArgs_(inputStream, params, command); if (command.type == 'exToKey') { // Handle Ex to Key mapping. @@ -2955,6 +3316,7 @@ exCommands[commandName](cm, params); } catch(e) { showConfirm(cm, e); + throw e; } }, parseInput_: function(cm, inputStream, result) { @@ -3037,40 +3399,81 @@ this.commandMap_[key] = command; } }, - map: function(lhs, rhs) { + map: function(lhs, rhs, ctx) { if (lhs != ':' && lhs.charAt(0) == ':') { + if (ctx) { throw Error('Mode not supported for ex mappings'); } var commandName = lhs.substring(1); if (rhs != ':' && rhs.charAt(0) == ':') { // Ex to Ex mapping this.commandMap_[commandName] = { name: commandName, type: 'exToEx', - toInput: rhs.substring(1) + toInput: rhs.substring(1), + user: true }; } else { // Ex to key mapping this.commandMap_[commandName] = { name: commandName, type: 'exToKey', - toKeys: parseKeyString(rhs) + toKeys: parseKeyString(rhs), + user: true }; } } else { if (rhs != ':' && rhs.charAt(0) == ':') { // Key to Ex mapping. - defaultKeymap.unshift({ + var mapping = { keys: parseKeyString(lhs), type: 'keyToEx', - exArgs: { input: rhs.substring(1) }}); + exArgs: { input: rhs.substring(1) }, + user: true}; + if (ctx) { mapping.context = ctx; } + defaultKeymap.unshift(mapping); } else { // Key to key mapping - defaultKeymap.unshift({ + var mapping = { keys: parseKeyString(lhs), type: 'keyToKey', - toKeys: parseKeyString(rhs) - }); + toKeys: parseKeyString(rhs), + user: true + }; + if (ctx) { mapping.context = ctx; } + defaultKeymap.unshift(mapping); } } + }, + unmap: function(lhs, ctx) { + var arrayEquals = function(a, b) { + if (a === b) return true; + if (a == null || b == null) return true; + if (a.length != b.length) return false; + for (var i = 0; i < a.length; i++) { + if (a[i] !== b[i]) return false; + } + return true; + }; + if (lhs != ':' && lhs.charAt(0) == ':') { + // Ex to Ex or Ex to key mapping + if (ctx) { throw Error('Mode not supported for ex mappings'); } + var commandName = lhs.substring(1); + if (this.commandMap_[commandName] && this.commandMap_[commandName].user) { + delete this.commandMap_[commandName]; + return; + } + } else { + // Key to Ex or key to key mapping + var keys = parseKeyString(lhs); + for (var i = 0; i < defaultKeymap.length; i++) { + if (arrayEquals(keys, defaultKeymap[i].keys) + && defaultKeymap[i].context === ctx + && defaultKeymap[i].user) { + defaultKeymap.splice(i, 1); + return; + } + } + } + throw Error('No such mapping.'); } }; @@ -3081,7 +3484,7 @@ var keys = []; while (str) { match = (/<\w+-.+?>|<\w+>|./).exec(str); - if(match === null)break; + if (match === null)break; key = match[0]; str = str.substring(match.index + key.length); keys.push(key); @@ -3090,7 +3493,7 @@ } var exCommands = { - map: function(cm, params) { + map: function(cm, params, ctx) { var mapArgs = params.args; if (!mapArgs || mapArgs.length < 2) { if (cm) { @@ -3098,7 +3501,19 @@ } return; } - exCommandDispatcher.map(mapArgs[0], mapArgs[1], cm); + exCommandDispatcher.map(mapArgs[0], mapArgs[1], ctx); + }, + nmap: function(cm, params) { this.map(cm, params, 'normal'); }, + vmap: function(cm, params) { this.map(cm, params, 'visual'); }, + unmap: function(cm, params, ctx) { + var mapArgs = params.args; + if (!mapArgs || mapArgs.length < 1) { + if (cm) { + showConfirm(cm, 'No such mapping: ' + params.input); + } + return; + } + exCommandDispatcher.unmap(mapArgs[0], ctx); }, move: function(cm, params) { commandDispatcher.processCommand(cm, cm.state.vim, { @@ -3108,6 +3523,73 @@ linewise: true }, repeatOverride: params.line+1}); }, + set: function(cm, params) { + var setArgs = params.args; + if (!setArgs || setArgs.length < 1) { + if (cm) { + showConfirm(cm, 'Invalid mapping: ' + params.input); + } + return; + } + var expr = setArgs[0].split('='); + var optionName = expr[0]; + var value = expr[1]; + var forceGet = false; + + if (optionName.charAt(optionName.length - 1) == '?') { + // If post-fixed with ?, then the set is actually a get. + if (value) { throw Error('Trailing characters: ' + params.argString); } + optionName = optionName.substring(0, optionName.length - 1); + forceGet = true; + } + if (value === undefined && optionName.substring(0, 2) == 'no') { + // To set boolean options to false, the option name is prefixed with + // 'no'. + optionName = optionName.substring(2); + value = false; + } + var optionIsBoolean = options[optionName] && options[optionName].type == 'boolean'; + if (optionIsBoolean && value == undefined) { + // Calling set with a boolean option sets it to true. + value = true; + } + if (!optionIsBoolean && !value || forceGet) { + var oldValue = getOption(optionName); + // If no value is provided, then we assume this is a get. + if (oldValue === true || oldValue === false) { + showConfirm(cm, ' ' + (oldValue ? '' : 'no') + optionName); + } else { + showConfirm(cm, ' ' + optionName + '=' + oldValue); + } + } else { + setOption(optionName, value); + } + }, + registers: function(cm,params) { + var regArgs = params.args; + var registers = vimGlobalState.registerController.registers; + var regInfo = '----------Registers----------

'; + if (!regArgs) { + for (var registerName in registers) { + var text = registers[registerName].toString(); + if (text.length) { + regInfo += '"' + registerName + ' ' + text + '
'; + } + } + } else { + var registerName; + regArgs = regArgs.join(''); + for (var i = 0; i < regArgs.length; i++) { + registerName = regArgs.charAt(i); + if (!vimGlobalState.registerController.isValidRegister(registerName)) { + continue; + } + var register = registers[registerName] || new Register(); + regInfo += '"' + registerName + ' ' + register.toString() + '
'; + } + } + showConfirm(cm, regInfo); + }, sort: function(cm, params) { var reverse, ignoreCase, unique, number; function parseArgs() { @@ -3115,7 +3597,7 @@ var args = new CodeMirror.StringStream(params.argString); if (args.eat('!')) { reverse = true; } if (args.eol()) { return; } - if (!args.eatSpace()) { throw new Error('invalid arguments ' + args.match(/.*/)[0]); } + if (!args.eatSpace()) { return 'Invalid arguments'; } var opts = args.match(/[a-z]+/); if (opts) { opts = opts[0]; @@ -3124,18 +3606,22 @@ var decimal = opts.indexOf('d') != -1 && 1; var hex = opts.indexOf('x') != -1 && 1; var octal = opts.indexOf('o') != -1 && 1; - if (decimal + hex + octal > 1) { throw new Error('invalid arguments'); } + if (decimal + hex + octal > 1) { return 'Invalid arguments'; } number = decimal && 'decimal' || hex && 'hex' || octal && 'octal'; } - if (args.eatSpace() && args.match(/\/.*\//)) { throw new Error('patterns not supported'); } + if (args.eatSpace() && args.match(/\/.*\//)) { 'patterns not supported'; } } } - parseArgs(); + var err = parseArgs(); + if (err) { + showConfirm(cm, err + ': ' + params.argString); + return; + } var lineStart = params.line || cm.firstLine(); var lineEnd = params.lineEnd || params.line || cm.lastLine(); if (lineStart == lineEnd) { return; } - var curStart = { line: lineStart, ch: 0 }; - var curEnd = { line: lineEnd, ch: lineLength(cm, lineEnd) }; + var curStart = Pos(lineStart, 0); + var curEnd = Pos(lineEnd, lineLength(cm, lineEnd)); var text = cm.getRange(curStart, curEnd).split('\n'); var numberRegex = (number == 'decimal') ? /(-?)([\d]+)/ : (number == 'hex') ? /(-?)(?:0x)?([0-9a-f]+)/i : @@ -3185,33 +3671,41 @@ 'any other getSearchCursor implementation.'); } var argString = params.argString; - var slashes = findUnescapedSlashes(argString); - if (slashes[0] !== 0) { - showConfirm(cm, 'Substitutions should be of the form ' + - ':s/pattern/replace/'); - return; - } - var regexPart = argString.substring(slashes[0] + 1, slashes[1]); + var slashes = argString ? findUnescapedSlashes(argString) : []; var replacePart = ''; - var flagsPart; - var count; - var confirm = false; // Whether to confirm each replace. - if (slashes[1]) { - replacePart = argString.substring(slashes[1] + 1, slashes[2]); - } - if (slashes[2]) { - // After the 3rd slash, we can have flags followed by a space followed - // by count. - var trailing = argString.substring(slashes[2] + 1).split(' '); - flagsPart = trailing[0]; - count = parseInt(trailing[1]); - } - if (flagsPart) { - if (flagsPart.indexOf('c') != -1) { - confirm = true; - flagsPart.replace('c', ''); + if (slashes.length) { + if (slashes[0] !== 0) { + showConfirm(cm, 'Substitutions should be of the form ' + + ':s/pattern/replace/'); + return; + } + var regexPart = argString.substring(slashes[0] + 1, slashes[1]); + var flagsPart; + var count; + var confirm = false; // Whether to confirm each replace. + if (slashes[1]) { + replacePart = argString.substring(slashes[1] + 1, slashes[2]); + if (getOption('pcre')) { + replacePart = unescapeRegexReplace(replacePart); + } else { + replacePart = translateRegexReplace(replacePart); + } + vimGlobalState.lastSubstituteReplacePart = replacePart; + } + if (slashes[2]) { + // After the 3rd slash, we can have flags followed by a space followed + // by count. + var trailing = argString.substring(slashes[2] + 1).split(' '); + flagsPart = trailing[0]; + count = parseInt(trailing[1]); + } + if (flagsPart) { + if (flagsPart.indexOf('c') != -1) { + confirm = true; + flagsPart.replace('c', ''); + } + regexPart = regexPart + '/' + flagsPart; } - regexPart = regexPart + '/' + flagsPart; } if (regexPart) { // If regex part is empty, then use the previous query. Otherwise use @@ -3224,6 +3718,11 @@ return; } } + replacePart = replacePart || vimGlobalState.lastSubstituteReplacePart; + if (replacePart === undefined) { + showConfirm(cm, 'No previous substitute regular expression'); + return; + } var state = getSearchState(cm); var query = state.getQuery(); var lineStart = (params.line !== undefined) ? params.line : cm.getCursor().line; @@ -3232,7 +3731,7 @@ lineStart = lineEnd; lineEnd = lineStart + count - 1; } - var startPos = clipCursorToContent(cm, { line: lineStart, ch: 0 }); + var startPos = clipCursorToContent(cm, Pos(lineStart, 0)); var cursor = cm.getSearchCursor(query, startPos); doReplace(cm, confirm, lineStart, lineEnd, cursor, query, replacePart); }, @@ -3251,13 +3750,13 @@ clearSearchHighlight(cm); }, delmarks: function(cm, params) { - if (!params.argString || !params.argString.trim()) { + if (!params.argString || !trim(params.argString)) { showConfirm(cm, 'Argument required'); return; } var state = cm.state.vim; - var stream = new CodeMirror.StringStream(params.argString.trim()); + var stream = new CodeMirror.StringStream(trim(params.argString)); while (!stream.eol()) { stream.eatSpace(); @@ -3394,7 +3893,8 @@ // Actually do replace. next(); if (done) { - throw new Error('No matches for ' + query.source); + showConfirm(cm, 'No matches for ' + query.source); + return; } if (!confirm) { replaceAll(); @@ -3413,18 +3913,10 @@ * Shift + key modifier to the resulting letter, while preserving other * modifers. */ - // TODO: Figure out a way to catch capslock. function cmKeyToVimKey(key, modifier) { var vimKey = key; - if (isUpperCase(vimKey)) { - // Convert to lower case if shift is not the modifier since the key - // we get from CodeMirror is always upper case. - if (modifier == 'Shift') { - modifier = null; - } - else { + if (isUpperCase(vimKey) && modifier == 'Ctrl') { vimKey = vimKey.toLowerCase(); - } } if (modifier) { // Vim will parse modifier+key combination as a single key. @@ -3445,15 +3937,14 @@ var cmToVimKeymap = { 'nofallthrough': true, - 'disableInput': true, 'style': 'fat-cursor' }; function bindKeys(keys, modifier) { for (var i = 0; i < keys.length; i++) { var key = keys[i]; - if (!modifier && inArray(key, specialSymbols)) { - // Wrap special symbols with '' because that's how CodeMirror binds - // them. + if (!modifier && key.length == 1) { + // Wrap all keys without modifiers with '' to identify them by their + // key characters instead of key identifiers. key = "'" + key + "'"; } var vimKey = cmKeyToVimKey(keys[i], modifier); @@ -3462,7 +3953,7 @@ } } bindKeys(upperCaseAlphabet); - bindKeys(upperCaseAlphabet, 'Shift'); + bindKeys(lowerCaseAlphabet); bindKeys(upperCaseAlphabet, 'Ctrl'); bindKeys(specialSymbols); bindKeys(specialSymbols, 'Ctrl'); @@ -3476,24 +3967,31 @@ function exitInsertMode(cm) { var vim = cm.state.vim; - var inReplay = vimGlobalState.macroModeState.inReplay; - if (!inReplay) { + var macroModeState = vimGlobalState.macroModeState; + var insertModeChangeRegister = vimGlobalState.registerController.getRegister('.'); + var isPlaying = macroModeState.isPlaying; + if (!isPlaying) { cm.off('change', onChange); - cm.off('cursorActivity', onCursorActivity); CodeMirror.off(cm.getInputField(), 'keydown', onKeyEventTargetKeyDown); } - if (!inReplay && vim.insertModeRepeat > 1) { + if (!isPlaying && vim.insertModeRepeat > 1) { // Perform insert mode repeat for commands like 3,a and 3,o. repeatLastEdit(cm, vim, vim.insertModeRepeat - 1, true /** repeatForInsert */); vim.lastEditInputState.repeatOverride = vim.insertModeRepeat; } delete vim.insertModeRepeat; - cm.setCursor(cm.getCursor().line, cm.getCursor().ch-1, true); vim.insertMode = false; + cm.setCursor(cm.getCursor().line, cm.getCursor().ch-1); cm.setOption('keyMap', 'vim'); + cm.setOption('disableInput', true); cm.toggleOverwrite(false); // exit replace mode if we were in it. + // update the ". register before exiting insert mode + insertModeChangeRegister.setText(macroModeState.lastInsertModeChanges.changes.join('')); CodeMirror.signal(cm, "vim-mode-change", {mode: "normal"}); + if (macroModeState.isRecording) { + logInsertModeChange(macroModeState); + } } CodeMirror.keyMap['vim-insert'] = { @@ -3517,45 +4015,57 @@ fallthrough: ['vim-insert'] }; - function parseRegisterToKeyBuffer(macroModeState, registerName) { - var match, key; + function executeMacroRegister(cm, vim, macroModeState, registerName) { var register = vimGlobalState.registerController.getRegister(registerName); - var text = register.toString(); - var macroKeyBuffer = macroModeState.macroKeyBuffer; - emptyMacroKeyBuffer(macroModeState); - do { - match = (/<\w+-.+?>|<\w+>|./).exec(text); - if(match === null)break; - key = match[0]; - text = text.substring(match.index + key.length); - macroKeyBuffer.push(key); - } while (text); - return macroKeyBuffer; - } - - function parseKeyBufferToRegister(registerName, keyBuffer) { - var text = keyBuffer.join(''); - vimGlobalState.registerController.setRegisterText(registerName, text); - } - - function emptyMacroKeyBuffer(macroModeState) { - if(macroModeState.isMacroPlaying)return; - var macroKeyBuffer = macroModeState.macroKeyBuffer; - macroKeyBuffer.length = 0; - } - - function executeMacroKeyBuffer(cm, macroModeState, keyBuffer) { - macroModeState.isMacroPlaying = true; - for (var i = 0, len = keyBuffer.length; i < len; i++) { - CodeMirror.Vim.handleKey(cm, keyBuffer[i]); + var keyBuffer = register.keyBuffer; + var imc = 0; + macroModeState.isPlaying = true; + macroModeState.replaySearchQueries = register.searchQueries.slice(0); + for (var i = 0; i < keyBuffer.length; i++) { + var text = keyBuffer[i]; + var match, key; + while (text) { + // Pull off one command key, which is either a single character + // or a special sequence wrapped in '<' and '>', e.g. ''. + match = (/<\w+-.+?>|<\w+>|./).exec(text); + key = match[0]; + text = text.substring(match.index + key.length); + CodeMirror.Vim.handleKey(cm, key); + if (vim.insertMode) { + repeatInsertModeChanges( + cm, register.insertModeChanges[imc++].changes, 1); + exitInsertMode(cm); + } + } }; - macroModeState.isMacroPlaying = false; + macroModeState.isPlaying = false; } function logKey(macroModeState, key) { - if(macroModeState.isMacroPlaying)return; - var macroKeyBuffer = macroModeState.macroKeyBuffer; - macroKeyBuffer.push(key); + if (macroModeState.isPlaying) { return; } + var registerName = macroModeState.latestRegister; + var register = vimGlobalState.registerController.getRegister(registerName); + if (register) { + register.pushText(key); + } + } + + function logInsertModeChange(macroModeState) { + if (macroModeState.isPlaying) { return; } + var registerName = macroModeState.latestRegister; + var register = vimGlobalState.registerController.getRegister(registerName); + if (register) { + register.pushInsertModeChanges(macroModeState.lastInsertModeChanges); + } + } + + function logSearchQuery(macroModeState, query) { + if (macroModeState.isPlaying) { return; } + var registerName = macroModeState.latestRegister; + var register = vimGlobalState.registerController.getRegister(registerName); + if (register) { + register.pushSearchQuery(query); + } } /** @@ -3565,31 +4075,39 @@ function onChange(_cm, changeObj) { var macroModeState = vimGlobalState.macroModeState; var lastChange = macroModeState.lastInsertModeChanges; - while (changeObj) { - lastChange.expectCursorActivityForChange = true; - if (changeObj.origin == '+input' || changeObj.origin == 'paste' - || changeObj.origin === undefined /* only in testing */) { - var text = changeObj.text.join('\n'); - lastChange.changes.push(text); + if (!macroModeState.isPlaying) { + while(changeObj) { + lastChange.expectCursorActivityForChange = true; + if (changeObj.origin == '+input' || changeObj.origin == 'paste' + || changeObj.origin === undefined /* only in testing */) { + var text = changeObj.text.join('\n'); + lastChange.changes.push(text); + } + // Change objects may be chained with next. + changeObj = changeObj.next; } - // Change objects may be chained with next. - changeObj = changeObj.next; } } /** * Listens for any kind of cursor activity on CodeMirror. - * - For tracking cursor activity in insert mode. - * - Should only be active in insert mode. */ - function onCursorActivity() { - var macroModeState = vimGlobalState.macroModeState; - var lastChange = macroModeState.lastInsertModeChanges; - if (lastChange.expectCursorActivityForChange) { - lastChange.expectCursorActivityForChange = false; - } else { - // Cursor moved outside the context of an edit. Reset the change. - lastChange.changes = []; + function onCursorActivity(cm) { + var vim = cm.state.vim; + if (vim.insertMode) { + // Tracking cursor activity in insert mode (for macro support). + var macroModeState = vimGlobalState.macroModeState; + if (macroModeState.isPlaying) { return; } + var lastChange = macroModeState.lastInsertModeChanges; + if (lastChange.expectCursorActivityForChange) { + lastChange.expectCursorActivityForChange = false; + } else { + // Cursor moved outside the context of an edit. Reset the change. + lastChange.changes = []; + } + } else if (cm.doc.history.lastSelOrigin == '*mouse') { + // Reset lastHPos if mouse click was done in normal mode. + vim.lastHPos = cm.doc.getCursor().ch; } } @@ -3627,7 +4145,7 @@ */ function repeatLastEdit(cm, vim, repeat, repeatForInsert) { var macroModeState = vimGlobalState.macroModeState; - macroModeState.inReplay = true; + macroModeState.isPlaying = true; var isAction = !!vim.lastEditActionCommand; var cachedInputState = vim.inputState; function repeatCommand() { @@ -3639,10 +4157,15 @@ } function repeatInsert(repeat) { if (macroModeState.lastInsertModeChanges.changes.length > 0) { - // For some reason, repeat cw in desktop VIM will does not repeat + // For some reason, repeat cw in desktop VIM does not repeat // insert mode changes. Will conform to that behavior. repeat = !vim.lastEditActionCommand ? 1 : repeat; - repeatLastInsertModeChanges(cm, repeat, macroModeState); + var changeObject = macroModeState.lastInsertModeChanges; + // This isn't strictly necessary, but since lastInsertModeChanges is + // supposed to be immutable during replay, this helps catch bugs. + macroModeState.lastInsertModeChanges = {}; + repeatInsertModeChanges(cm, changeObject.changes, repeat); + macroModeState.lastInsertModeChanges = changeObject; } } vim.inputState = vim.lastEditInputState; @@ -3668,11 +4191,10 @@ // were called by an exitInsertMode call lower on the stack. exitInsertMode(cm); } - macroModeState.inReplay = false; + macroModeState.isPlaying = false; }; - function repeatLastInsertModeChanges(cm, repeat, macroModeState) { - var lastChange = macroModeState.lastInsertModeChanges; + function repeatInsertModeChanges(cm, changes, repeat) { function keyHandler(binding) { if (typeof binding == 'string') { CodeMirror.commands[binding](cm); @@ -3682,8 +4204,8 @@ return true; } for (var i = 0; i < repeat; i++) { - for (var j = 0; j < lastChange.changes.length; j++) { - var change = lastChange.changes[j]; + for (var j = 0; j < changes.length; j++) { + var change = changes[j]; if (change instanceof InsertModeKey) { CodeMirror.lookupKey(change.keyName, ['vim-insert'], keyHandler); } else { @@ -3699,5 +4221,4 @@ }; // Initialize Vim and make it available as an API. CodeMirror.Vim = Vim(); -} -)(); +}); diff --git a/plugins/tiddlywiki/codemirror/lib/mode/javascript/javascript.js b/plugins/tiddlywiki/codemirror/lib/mode/javascript/javascript.js new file mode 100644 index 000000000..e71908934 --- /dev/null +++ b/plugins/tiddlywiki/codemirror/lib/mode/javascript/javascript.js @@ -0,0 +1,660 @@ +// TODO actually recognize syntax of TypeScript constructs + +(function(mod) { + if (typeof exports == "object" && typeof module == "object") // CommonJS + mod(require("../../lib/codemirror")); + else if (typeof define == "function" && define.amd) // AMD + define(["../../lib/codemirror"], mod); + else // Plain browser env + mod(CodeMirror); +})(function(CodeMirror) { +"use strict"; + +CodeMirror.defineMode("javascript", function(config, parserConfig) { + var indentUnit = config.indentUnit; + var statementIndent = parserConfig.statementIndent; + var jsonldMode = parserConfig.jsonld; + var jsonMode = parserConfig.json || jsonldMode; + var isTS = parserConfig.typescript; + + // Tokenizer + + var keywords = function(){ + function kw(type) {return {type: type, style: "keyword"};} + var A = kw("keyword a"), B = kw("keyword b"), C = kw("keyword c"); + var operator = kw("operator"), atom = {type: "atom", style: "atom"}; + + var jsKeywords = { + "if": kw("if"), "while": A, "with": A, "else": B, "do": B, "try": B, "finally": B, + "return": C, "break": C, "continue": C, "new": C, "delete": C, "throw": C, "debugger": C, + "var": kw("var"), "const": kw("var"), "let": kw("var"), + "function": kw("function"), "catch": kw("catch"), + "for": kw("for"), "switch": kw("switch"), "case": kw("case"), "default": kw("default"), + "in": operator, "typeof": operator, "instanceof": operator, + "true": atom, "false": atom, "null": atom, "undefined": atom, "NaN": atom, "Infinity": atom, + "this": kw("this"), "module": kw("module"), "class": kw("class"), "super": kw("atom"), + "yield": C, "export": kw("export"), "import": kw("import"), "extends": C + }; + + // Extend the 'normal' keywords with the TypeScript language extensions + if (isTS) { + var type = {type: "variable", style: "variable-3"}; + var tsKeywords = { + // object-like things + "interface": kw("interface"), + "extends": kw("extends"), + "constructor": kw("constructor"), + + // scope modifiers + "public": kw("public"), + "private": kw("private"), + "protected": kw("protected"), + "static": kw("static"), + + // types + "string": type, "number": type, "bool": type, "any": type + }; + + for (var attr in tsKeywords) { + jsKeywords[attr] = tsKeywords[attr]; + } + } + + return jsKeywords; + }(); + + var isOperatorChar = /[+\-*&%=<>!?|~^]/; + var isJsonldKeyword = /^@(context|id|value|language|type|container|list|set|reverse|index|base|vocab|graph)"/; + + function readRegexp(stream) { + var escaped = false, next, inSet = false; + while ((next = stream.next()) != null) { + if (!escaped) { + if (next == "/" && !inSet) return; + if (next == "[") inSet = true; + else if (inSet && next == "]") inSet = false; + } + escaped = !escaped && next == "\\"; + } + } + + // Used as scratch variables to communicate multiple values without + // consing up tons of objects. + var type, content; + function ret(tp, style, cont) { + type = tp; content = cont; + return style; + } + function tokenBase(stream, state) { + var ch = stream.next(); + if (ch == '"' || ch == "'") { + state.tokenize = tokenString(ch); + return state.tokenize(stream, state); + } else if (ch == "." && stream.match(/^\d+(?:[eE][+\-]?\d+)?/)) { + return ret("number", "number"); + } else if (ch == "." && stream.match("..")) { + return ret("spread", "meta"); + } else if (/[\[\]{}\(\),;\:\.]/.test(ch)) { + return ret(ch); + } else if (ch == "=" && stream.eat(">")) { + return ret("=>", "operator"); + } else if (ch == "0" && stream.eat(/x/i)) { + stream.eatWhile(/[\da-f]/i); + return ret("number", "number"); + } else if (/\d/.test(ch)) { + stream.match(/^\d*(?:\.\d*)?(?:[eE][+\-]?\d+)?/); + return ret("number", "number"); + } else if (ch == "/") { + if (stream.eat("*")) { + state.tokenize = tokenComment; + return tokenComment(stream, state); + } else if (stream.eat("/")) { + stream.skipToEnd(); + return ret("comment", "comment"); + } else if (state.lastType == "operator" || state.lastType == "keyword c" || + state.lastType == "sof" || /^[\[{}\(,;:]$/.test(state.lastType)) { + readRegexp(stream); + stream.eatWhile(/[gimy]/); // 'y' is "sticky" option in Mozilla + return ret("regexp", "string-2"); + } else { + stream.eatWhile(isOperatorChar); + return ret("operator", "operator", stream.current()); + } + } else if (ch == "`") { + state.tokenize = tokenQuasi; + return tokenQuasi(stream, state); + } else if (ch == "#") { + stream.skipToEnd(); + return ret("error", "error"); + } else if (isOperatorChar.test(ch)) { + stream.eatWhile(isOperatorChar); + return ret("operator", "operator", stream.current()); + } else { + stream.eatWhile(/[\w\$_]/); + var word = stream.current(), known = keywords.propertyIsEnumerable(word) && keywords[word]; + return (known && state.lastType != ".") ? ret(known.type, known.style, word) : + ret("variable", "variable", word); + } + } + + function tokenString(quote) { + return function(stream, state) { + var escaped = false, next; + if (jsonldMode && stream.peek() == "@" && stream.match(isJsonldKeyword)){ + state.tokenize = tokenBase; + return ret("jsonld-keyword", "meta"); + } + while ((next = stream.next()) != null) { + if (next == quote && !escaped) break; + escaped = !escaped && next == "\\"; + } + if (!escaped) state.tokenize = tokenBase; + return ret("string", "string"); + }; + } + + function tokenComment(stream, state) { + var maybeEnd = false, ch; + while (ch = stream.next()) { + if (ch == "/" && maybeEnd) { + state.tokenize = tokenBase; + break; + } + maybeEnd = (ch == "*"); + } + return ret("comment", "comment"); + } + + function tokenQuasi(stream, state) { + var escaped = false, next; + while ((next = stream.next()) != null) { + if (!escaped && (next == "`" || next == "$" && stream.eat("{"))) { + state.tokenize = tokenBase; + break; + } + escaped = !escaped && next == "\\"; + } + return ret("quasi", "string-2", stream.current()); + } + + var brackets = "([{}])"; + // This is a crude lookahead trick to try and notice that we're + // parsing the argument patterns for a fat-arrow function before we + // actually hit the arrow token. It only works if the arrow is on + // the same line as the arguments and there's no strange noise + // (comments) in between. Fallback is to only notice when we hit the + // arrow, and not declare the arguments as locals for the arrow + // body. + function findFatArrow(stream, state) { + if (state.fatArrowAt) state.fatArrowAt = null; + var arrow = stream.string.indexOf("=>", stream.start); + if (arrow < 0) return; + + var depth = 0, sawSomething = false; + for (var pos = arrow - 1; pos >= 0; --pos) { + var ch = stream.string.charAt(pos); + var bracket = brackets.indexOf(ch); + if (bracket >= 0 && bracket < 3) { + if (!depth) { ++pos; break; } + if (--depth == 0) break; + } else if (bracket >= 3 && bracket < 6) { + ++depth; + } else if (/[$\w]/.test(ch)) { + sawSomething = true; + } else if (sawSomething && !depth) { + ++pos; + break; + } + } + if (sawSomething && !depth) state.fatArrowAt = pos; + } + + // Parser + + var atomicTypes = {"atom": true, "number": true, "variable": true, "string": true, "regexp": true, "this": true, "jsonld-keyword": true}; + + function JSLexical(indented, column, type, align, prev, info) { + this.indented = indented; + this.column = column; + this.type = type; + this.prev = prev; + this.info = info; + if (align != null) this.align = align; + } + + function inScope(state, varname) { + for (var v = state.localVars; v; v = v.next) + if (v.name == varname) return true; + for (var cx = state.context; cx; cx = cx.prev) { + for (var v = cx.vars; v; v = v.next) + if (v.name == varname) return true; + } + } + + function parseJS(state, style, type, content, stream) { + var cc = state.cc; + // Communicate our context to the combinators. + // (Less wasteful than consing up a hundred closures on every call.) + cx.state = state; cx.stream = stream; cx.marked = null, cx.cc = cc; + + if (!state.lexical.hasOwnProperty("align")) + state.lexical.align = true; + + while(true) { + var combinator = cc.length ? cc.pop() : jsonMode ? expression : statement; + if (combinator(type, content)) { + while(cc.length && cc[cc.length - 1].lex) + cc.pop()(); + if (cx.marked) return cx.marked; + if (type == "variable" && inScope(state, content)) return "variable-2"; + return style; + } + } + } + + // Combinator utils + + var cx = {state: null, column: null, marked: null, cc: null}; + function pass() { + for (var i = arguments.length - 1; i >= 0; i--) cx.cc.push(arguments[i]); + } + function cont() { + pass.apply(null, arguments); + return true; + } + function register(varname) { + function inList(list) { + for (var v = list; v; v = v.next) + if (v.name == varname) return true; + return false; + } + var state = cx.state; + if (state.context) { + cx.marked = "def"; + if (inList(state.localVars)) return; + state.localVars = {name: varname, next: state.localVars}; + } else { + if (inList(state.globalVars)) return; + if (parserConfig.globalVars) + state.globalVars = {name: varname, next: state.globalVars}; + } + } + + // Combinators + + var defaultVars = {name: "this", next: {name: "arguments"}}; + function pushcontext() { + cx.state.context = {prev: cx.state.context, vars: cx.state.localVars}; + cx.state.localVars = defaultVars; + } + function popcontext() { + cx.state.localVars = cx.state.context.vars; + cx.state.context = cx.state.context.prev; + } + function pushlex(type, info) { + var result = function() { + var state = cx.state, indent = state.indented; + if (state.lexical.type == "stat") indent = state.lexical.indented; + state.lexical = new JSLexical(indent, cx.stream.column(), type, null, state.lexical, info); + }; + result.lex = true; + return result; + } + function poplex() { + var state = cx.state; + if (state.lexical.prev) { + if (state.lexical.type == ")") + state.indented = state.lexical.indented; + state.lexical = state.lexical.prev; + } + } + poplex.lex = true; + + function expect(wanted) { + function exp(type) { + if (type == wanted) return cont(); + else if (wanted == ";") return pass(); + else return cont(exp); + }; + return exp; + } + + function statement(type, value) { + if (type == "var") return cont(pushlex("vardef", value.length), vardef, expect(";"), poplex); + if (type == "keyword a") return cont(pushlex("form"), expression, statement, poplex); + if (type == "keyword b") return cont(pushlex("form"), statement, poplex); + if (type == "{") return cont(pushlex("}"), block, poplex); + if (type == ";") return cont(); + if (type == "if") { + if (cx.state.lexical.info == "else" && cx.state.cc[cx.state.cc.length - 1] == poplex) + cx.state.cc.pop()(); + return cont(pushlex("form"), expression, statement, poplex, maybeelse); + } + if (type == "function") return cont(functiondef); + if (type == "for") return cont(pushlex("form"), forspec, statement, poplex); + if (type == "variable") return cont(pushlex("stat"), maybelabel); + if (type == "switch") return cont(pushlex("form"), expression, pushlex("}", "switch"), expect("{"), + block, poplex, poplex); + if (type == "case") return cont(expression, expect(":")); + if (type == "default") return cont(expect(":")); + if (type == "catch") return cont(pushlex("form"), pushcontext, expect("("), funarg, expect(")"), + statement, poplex, popcontext); + if (type == "module") return cont(pushlex("form"), pushcontext, afterModule, popcontext, poplex); + if (type == "class") return cont(pushlex("form"), className, objlit, poplex); + if (type == "export") return cont(pushlex("form"), afterExport, poplex); + if (type == "import") return cont(pushlex("form"), afterImport, poplex); + return pass(pushlex("stat"), expression, expect(";"), poplex); + } + function expression(type) { + return expressionInner(type, false); + } + function expressionNoComma(type) { + return expressionInner(type, true); + } + function expressionInner(type, noComma) { + if (cx.state.fatArrowAt == cx.stream.start) { + var body = noComma ? arrowBodyNoComma : arrowBody; + if (type == "(") return cont(pushcontext, pushlex(")"), commasep(pattern, ")"), poplex, expect("=>"), body, popcontext); + else if (type == "variable") return pass(pushcontext, pattern, expect("=>"), body, popcontext); + } + + var maybeop = noComma ? maybeoperatorNoComma : maybeoperatorComma; + if (atomicTypes.hasOwnProperty(type)) return cont(maybeop); + if (type == "function") return cont(functiondef, maybeop); + if (type == "keyword c") return cont(noComma ? maybeexpressionNoComma : maybeexpression); + if (type == "(") return cont(pushlex(")"), maybeexpression, comprehension, expect(")"), poplex, maybeop); + if (type == "operator" || type == "spread") return cont(noComma ? expressionNoComma : expression); + if (type == "[") return cont(pushlex("]"), arrayLiteral, poplex, maybeop); + if (type == "{") return contCommasep(objprop, "}", null, maybeop); + if (type == "quasi") { return pass(quasi, maybeop); } + return cont(); + } + function maybeexpression(type) { + if (type.match(/[;\}\)\],]/)) return pass(); + return pass(expression); + } + function maybeexpressionNoComma(type) { + if (type.match(/[;\}\)\],]/)) return pass(); + return pass(expressionNoComma); + } + + function maybeoperatorComma(type, value) { + if (type == ",") return cont(expression); + return maybeoperatorNoComma(type, value, false); + } + function maybeoperatorNoComma(type, value, noComma) { + var me = noComma == false ? maybeoperatorComma : maybeoperatorNoComma; + var expr = noComma == false ? expression : expressionNoComma; + if (value == "=>") return cont(pushcontext, noComma ? arrowBodyNoComma : arrowBody, popcontext); + if (type == "operator") { + if (/\+\+|--/.test(value)) return cont(me); + if (value == "?") return cont(expression, expect(":"), expr); + return cont(expr); + } + if (type == "quasi") { return pass(quasi, me); } + if (type == ";") return; + if (type == "(") return contCommasep(expressionNoComma, ")", "call", me); + if (type == ".") return cont(property, me); + if (type == "[") return cont(pushlex("]"), maybeexpression, expect("]"), poplex, me); + } + function quasi(type, value) { + if (type != "quasi") return pass(); + if (value.slice(value.length - 2) != "${") return cont(quasi); + return cont(expression, continueQuasi); + } + function continueQuasi(type) { + if (type == "}") { + cx.marked = "string-2"; + cx.state.tokenize = tokenQuasi; + return cont(quasi); + } + } + function arrowBody(type) { + findFatArrow(cx.stream, cx.state); + if (type == "{") return pass(statement); + return pass(expression); + } + function arrowBodyNoComma(type) { + findFatArrow(cx.stream, cx.state); + if (type == "{") return pass(statement); + return pass(expressionNoComma); + } + function maybelabel(type) { + if (type == ":") return cont(poplex, statement); + return pass(maybeoperatorComma, expect(";"), poplex); + } + function property(type) { + if (type == "variable") {cx.marked = "property"; return cont();} + } + function objprop(type, value) { + if (type == "variable") { + cx.marked = "property"; + if (value == "get" || value == "set") return cont(getterSetter); + } else if (type == "number" || type == "string") { + cx.marked = jsonldMode ? "property" : (type + " property"); + } else if (type == "[") { + return cont(expression, expect("]"), afterprop); + } + if (atomicTypes.hasOwnProperty(type)) return cont(afterprop); + } + function getterSetter(type) { + if (type != "variable") return pass(afterprop); + cx.marked = "property"; + return cont(functiondef); + } + function afterprop(type) { + if (type == ":") return cont(expressionNoComma); + if (type == "(") return pass(functiondef); + } + function commasep(what, end) { + function proceed(type) { + if (type == ",") { + var lex = cx.state.lexical; + if (lex.info == "call") lex.pos = (lex.pos || 0) + 1; + return cont(what, proceed); + } + if (type == end) return cont(); + return cont(expect(end)); + } + return function(type) { + if (type == end) return cont(); + return pass(what, proceed); + }; + } + function contCommasep(what, end, info) { + for (var i = 3; i < arguments.length; i++) + cx.cc.push(arguments[i]); + return cont(pushlex(end, info), commasep(what, end), poplex); + } + function block(type) { + if (type == "}") return cont(); + return pass(statement, block); + } + function maybetype(type) { + if (isTS && type == ":") return cont(typedef); + } + function typedef(type) { + if (type == "variable"){cx.marked = "variable-3"; return cont();} + } + function vardef() { + return pass(pattern, maybetype, maybeAssign, vardefCont); + } + function pattern(type, value) { + if (type == "variable") { register(value); return cont(); } + if (type == "[") return contCommasep(pattern, "]"); + if (type == "{") return contCommasep(proppattern, "}"); + } + function proppattern(type, value) { + if (type == "variable" && !cx.stream.match(/^\s*:/, false)) { + register(value); + return cont(maybeAssign); + } + if (type == "variable") cx.marked = "property"; + return cont(expect(":"), pattern, maybeAssign); + } + function maybeAssign(_type, value) { + if (value == "=") return cont(expressionNoComma); + } + function vardefCont(type) { + if (type == ",") return cont(vardef); + } + function maybeelse(type, value) { + if (type == "keyword b" && value == "else") return cont(pushlex("form", "else"), statement, poplex); + } + function forspec(type) { + if (type == "(") return cont(pushlex(")"), forspec1, expect(")"), poplex); + } + function forspec1(type) { + if (type == "var") return cont(vardef, expect(";"), forspec2); + if (type == ";") return cont(forspec2); + if (type == "variable") return cont(formaybeinof); + return pass(expression, expect(";"), forspec2); + } + function formaybeinof(_type, value) { + if (value == "in" || value == "of") { cx.marked = "keyword"; return cont(expression); } + return cont(maybeoperatorComma, forspec2); + } + function forspec2(type, value) { + if (type == ";") return cont(forspec3); + if (value == "in" || value == "of") { cx.marked = "keyword"; return cont(expression); } + return pass(expression, expect(";"), forspec3); + } + function forspec3(type) { + if (type != ")") cont(expression); + } + function functiondef(type, value) { + if (value == "*") {cx.marked = "keyword"; return cont(functiondef);} + if (type == "variable") {register(value); return cont(functiondef);} + if (type == "(") return cont(pushcontext, pushlex(")"), commasep(funarg, ")"), poplex, statement, popcontext); + } + function funarg(type) { + if (type == "spread") return cont(funarg); + return pass(pattern, maybetype); + } + function className(type, value) { + if (type == "variable") {register(value); return cont(classNameAfter);} + } + function classNameAfter(_type, value) { + if (value == "extends") return cont(expression); + } + function objlit(type) { + if (type == "{") return contCommasep(objprop, "}"); + } + function afterModule(type, value) { + if (type == "string") return cont(statement); + if (type == "variable") { register(value); return cont(maybeFrom); } + } + function afterExport(_type, value) { + if (value == "*") { cx.marked = "keyword"; return cont(maybeFrom, expect(";")); } + if (value == "default") { cx.marked = "keyword"; return cont(expression, expect(";")); } + return pass(statement); + } + function afterImport(type) { + if (type == "string") return cont(); + return pass(importSpec, maybeFrom); + } + function importSpec(type, value) { + if (type == "{") return contCommasep(importSpec, "}"); + if (type == "variable") register(value); + return cont(); + } + function maybeFrom(_type, value) { + if (value == "from") { cx.marked = "keyword"; return cont(expression); } + } + function arrayLiteral(type) { + if (type == "]") return cont(); + return pass(expressionNoComma, maybeArrayComprehension); + } + function maybeArrayComprehension(type) { + if (type == "for") return pass(comprehension, expect("]")); + if (type == ",") return cont(commasep(expressionNoComma, "]")); + return pass(commasep(expressionNoComma, "]")); + } + function comprehension(type) { + if (type == "for") return cont(forspec, comprehension); + if (type == "if") return cont(expression, comprehension); + } + + // Interface + + return { + startState: function(basecolumn) { + var state = { + tokenize: tokenBase, + lastType: "sof", + cc: [], + lexical: new JSLexical((basecolumn || 0) - indentUnit, 0, "block", false), + localVars: parserConfig.localVars, + context: parserConfig.localVars && {vars: parserConfig.localVars}, + indented: 0 + }; + if (parserConfig.globalVars && typeof parserConfig.globalVars == "object") + state.globalVars = parserConfig.globalVars; + return state; + }, + + token: function(stream, state) { + if (stream.sol()) { + if (!state.lexical.hasOwnProperty("align")) + state.lexical.align = false; + state.indented = stream.indentation(); + findFatArrow(stream, state); + } + if (state.tokenize != tokenComment && stream.eatSpace()) return null; + var style = state.tokenize(stream, state); + if (type == "comment") return style; + state.lastType = type == "operator" && (content == "++" || content == "--") ? "incdec" : type; + return parseJS(state, style, type, content, stream); + }, + + indent: function(state, textAfter) { + if (state.tokenize == tokenComment) return CodeMirror.Pass; + if (state.tokenize != tokenBase) return 0; + var firstChar = textAfter && textAfter.charAt(0), lexical = state.lexical; + // Kludge to prevent 'maybelse' from blocking lexical scope pops + if (!/^\s*else\b/.test(textAfter)) for (var i = state.cc.length - 1; i >= 0; --i) { + var c = state.cc[i]; + if (c == poplex) lexical = lexical.prev; + else if (c != maybeelse) break; + } + if (lexical.type == "stat" && firstChar == "}") lexical = lexical.prev; + if (statementIndent && lexical.type == ")" && lexical.prev.type == "stat") + lexical = lexical.prev; + var type = lexical.type, closing = firstChar == type; + + if (type == "vardef") return lexical.indented + (state.lastType == "operator" || state.lastType == "," ? lexical.info + 1 : 0); + else if (type == "form" && firstChar == "{") return lexical.indented; + else if (type == "form") return lexical.indented + indentUnit; + else if (type == "stat") + return lexical.indented + (state.lastType == "operator" || state.lastType == "," ? statementIndent || indentUnit : 0); + else if (lexical.info == "switch" && !closing && parserConfig.doubleIndentSwitch != false) + return lexical.indented + (/^(?:case|default)\b/.test(textAfter) ? indentUnit : 2 * indentUnit); + else if (lexical.align) return lexical.column + (closing ? 0 : 1); + else return lexical.indented + (closing ? 0 : indentUnit); + }, + + electricChars: ":{}", + blockCommentStart: jsonMode ? null : "/*", + blockCommentEnd: jsonMode ? null : "*/", + lineComment: jsonMode ? null : "//", + fold: "brace", + + helperType: jsonMode ? "json" : "javascript", + jsonldMode: jsonldMode, + jsonMode: jsonMode + }; +}); + +CodeMirror.registerHelper("wordChars", "javascript", /[\\w$]/); + +CodeMirror.defineMIME("text/javascript", "javascript"); +CodeMirror.defineMIME("text/ecmascript", "javascript"); +CodeMirror.defineMIME("application/javascript", "javascript"); +CodeMirror.defineMIME("application/ecmascript", "javascript"); +CodeMirror.defineMIME("application/json", {name: "javascript", json: true}); +CodeMirror.defineMIME("application/x-json", {name: "javascript", json: true}); +CodeMirror.defineMIME("application/ld+json", {name: "javascript", jsonld: true}); +CodeMirror.defineMIME("text/typescript", { name: "javascript", typescript: true }); +CodeMirror.defineMIME("application/typescript", { name: "javascript", typescript: true }); + +}); diff --git a/plugins/tiddlywiki/codemirror/lib/tiddlywiki.files b/plugins/tiddlywiki/codemirror/lib/tiddlywiki.files new file mode 100644 index 000000000..65c15a2cf --- /dev/null +++ b/plugins/tiddlywiki/codemirror/lib/tiddlywiki.files @@ -0,0 +1,75 @@ +{ + "tiddlers": [ + { + "file": "codemirror.js", + "fields": { + "type": "application/javascript", + "title": "$:/plugins/tiddlywiki/codemirror/lib/codemirror.js", + "module-type": "library" + } + },{ + "file": "codemirror.css", + "fields": { + "type": "text/css", + "title": "$:/plugins/tiddlywiki/codemirror/lib/codemirror.css", + "tags": "[[$:/tags/stylesheet]]" + } + },{ + "file": "addon/dialog/dialog.css", + "fields": { + "type": "text/css", + "title": "$:/plugins/tiddlywiki/codemirror/addon/dialog/dialog.css", + "tags": "[[$:/tags/stylesheet]]" + } + },{ + "file": "addon/dialog/dialog.js", + "fields": { + "type": "application/javascript", + "title": "$:/plugins/tiddlywiki/codemirror/addon/dialog/dialog.js", + "module-type": "library" + } + },{ + "file": "addon/edit/matchbrackets.js", + "fields": { + "type": "application/javascript", + "title": "$:/plugins/tiddlywiki/codemirror/addon/edit/matchbrackets.js", + "module-type": "library" + } + },{ + "file": "addon/search/searchcursor.js", + "fields": { + "type": "application/javascript", + "title": "$:/plugins/tiddlywiki/codemirror/addon/search/searchcursor.js", + "module-type": "library" + } + },{ + "file": "mode/javascript/javascript.js", + "fields": { + "type": "application/javascript", + "title": "$:/plugins/tiddlywiki/codemirror/mode/javascript/javascript.js", + "module-type": "library" + } + },{ + "file": "keymap/vim.js", + "fields": { + "type": "application/javascript", + "title": "$:/plugins/tiddlywiki/codemirror/keymap/vim.js", + "module-type": "library" + } + },{ + "file": "keymap/sublime.js", + "fields": { + "type": "application/javascript", + "title": "$:/plugins/tiddlywiki/codemirror/keymap/sublime.js", + "module-type": "library" + } + },{ + "file": "keymap/emacs.js", + "fields": { + "type": "application/javascript", + "title": "$:/plugins/tiddlywiki/codemirror/keymap/emacs.js", + "module-type": "library" + } + } + ] +} From 6b03789e06364c0f0ea2ac8a13a4bce895a91458 Mon Sep 17 00:00:00 2001 From: natecain Date: Tue, 6 May 2014 23:31:57 +0200 Subject: [PATCH 2/3] Prioritize "module.exports" over "exports" in require sandbox (Node-ism, inherited (temporarily?) to support codemirror upgrade) --- boot/boot.js | 3 +++ 1 file changed, 3 insertions(+) diff --git a/boot/boot.js b/boot/boot.js index c08acdcac..d937246e4 100644 --- a/boot/boot.js +++ b/boot/boot.js @@ -677,6 +677,9 @@ $tw.modules.execute = function(moduleName,moduleRoot) { } else if(typeof moduleInfo.definition === "string") { // String moduleInfo.exports = _exports; $tw.utils.evalSandboxed(moduleInfo.definition,sandbox,tiddler.fields.title); + if(sandbox.module.exports) { + moduleInfo.exports = sandbox.module.exports; //more codemirror workaround + } } else { // Object moduleInfo.exports = moduleInfo.definition; } From c592e658e79b116b8abdd968e2d4a4a38f462be4 Mon Sep 17 00:00:00 2001 From: natecain Date: Tue, 6 May 2014 23:57:10 +0200 Subject: [PATCH 3/3] Fix up codemirror instructions to match new paths in config example --- plugins/tiddlywiki/codemirror/instructions.tid | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/plugins/tiddlywiki/codemirror/instructions.tid b/plugins/tiddlywiki/codemirror/instructions.tid index 71279e503..8b71cdb79 100644 --- a/plugins/tiddlywiki/codemirror/instructions.tid +++ b/plugins/tiddlywiki/codemirror/instructions.tid @@ -10,8 +10,9 @@ For example: ``` { "require": [ - "$:/plugins/tiddlywiki/codemirror/addon/dialog.js", - "$:/plugins/tiddlywiki/codemirror/addon/searchcursor.js", + "$:/plugins/tiddlywiki/codemirror/mode/javascript/javascript.js", + "$:/plugins/tiddlywiki/codemirror/addon/dialog/dialog.js", + "$:/plugins/tiddlywiki/codemirror/addon/search/searchcursor.js", "$:/plugins/tiddlywiki/codemirror/keymap/vim.js", "$:/plugins/tiddlywiki/codemirror/keymap/emacs.js" ],