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TiddlyWiki5/plugins/tiddlywiki/codemirror/files/keymap/extra.js
Jermolene 9c74afdd1a JSHint obeisance for plugins folder
Also add a jshintignore file to skip the various imported modules
2014-08-30 21:32:55 +01:00

44 lines
1.5 KiB
JavaScript

// A number of additional default bindings that are too obscure to
// include in the core codemirror.js file.
(function() {
"use strict";
var Pos = CodeMirror.Pos;
function moveLines(cm, start, end, dist) {
if (!dist || start > end) return 0;
var from = cm.clipPos(Pos(start, 0)), to = cm.clipPos(Pos(end));
var text = cm.getRange(from, to);
if (start <= cm.firstLine())
cm.replaceRange("", from, Pos(to.line + 1, 0));
else
cm.replaceRange("", Pos(from.line - 1), to);
var target = from.line + dist;
if (target <= cm.firstLine()) {
cm.replaceRange(text + "\n", Pos(target, 0));
return cm.firstLine() - from.line;
} else {
var targetPos = cm.clipPos(Pos(target - 1));
cm.replaceRange("\n" + text, targetPos);
return targetPos.line + 1 - from.line;
}
}
function moveSelectedLines(cm, dist) {
var head = cm.getCursor("head"), anchor = cm.getCursor("anchor");
cm.operation(function() {
var moved = moveLines(cm, Math.min(head.line, anchor.line), Math.max(head.line, anchor.line), dist);
cm.setSelection(Pos(anchor.line + moved, anchor.ch), Pos(head.line + moved, head.ch));
});
}
CodeMirror.commands.moveLinesUp = function(cm) { moveSelectedLines(cm, -1); };
CodeMirror.commands.moveLinesDown = function(cm) { moveSelectedLines(cm, 1); };
CodeMirror.keyMap["default"]["Alt-Up"] = "moveLinesUp";
CodeMirror.keyMap["default"]["Alt-Down"] = "moveLinesDown";
})();