mirror of
https://github.com/Jermolene/TiddlyWiki5
synced 2024-12-26 01:50:28 +00:00
279 lines
8.4 KiB
JavaScript
Executable File
279 lines
8.4 KiB
JavaScript
Executable File
/*\
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title: $:/core/modules/widgets/reveal.js
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type: application/javascript
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module-type: widget
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Reveal widget
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\*/
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(function(){
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/*jslint node: true, browser: true */
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/*global $tw: false */
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"use strict";
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var Widget = require("$:/core/modules/widgets/widget.js").widget;
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var RevealWidget = function(parseTreeNode,options) {
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this.initialise(parseTreeNode,options);
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};
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/*
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Inherit from the base widget class
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*/
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RevealWidget.prototype = new Widget();
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/*
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Render this widget into the DOM
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*/
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RevealWidget.prototype.render = function(parent,nextSibling) {
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this.parentDomNode = parent;
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this.computeAttributes();
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this.execute();
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var tag = this.parseTreeNode.isBlock ? "div" : "span";
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if(this.revealTag && $tw.config.htmlUnsafeElements.indexOf(this.revealTag) === -1) {
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tag = this.revealTag;
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}
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var domNode = this.document.createElement(tag);
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this.domNode = domNode;
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this.assignDomNodeClasses();
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if(this.style) {
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domNode.setAttribute("style",this.style);
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}
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parent.insertBefore(domNode,nextSibling);
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this.renderChildren(domNode,null);
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if(!domNode.isTiddlyWikiFakeDom && this.type === "popup" && this.isOpen) {
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this.positionPopup(domNode);
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$tw.utils.addClass(domNode,"tc-popup"); // Make sure that clicks don't dismiss popups within the revealed content
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}
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if(!this.isOpen) {
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domNode.setAttribute("hidden","true");
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}
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this.domNodes.push(domNode);
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};
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RevealWidget.prototype.positionPopup = function(domNode) {
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domNode.style.position = "absolute";
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domNode.style.zIndex = "1000";
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var left,top;
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switch(this.position) {
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case "left":
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left = this.popup.left - domNode.offsetWidth;
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top = this.popup.top;
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break;
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case "above":
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left = this.popup.left;
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top = this.popup.top - domNode.offsetHeight;
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break;
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case "aboveright":
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left = this.popup.left + this.popup.width;
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top = this.popup.top + this.popup.height - domNode.offsetHeight;
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break;
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case "belowright":
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left = this.popup.left + this.popup.width;
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top = this.popup.top + this.popup.height;
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break;
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case "right":
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left = this.popup.left + this.popup.width;
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top = this.popup.top;
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break;
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case "belowleft":
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left = this.popup.left + this.popup.width - domNode.offsetWidth;
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top = this.popup.top + this.popup.height;
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break;
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case "aboveleft":
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left = this.popup.left - domNode.offsetWidth;
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top = this.popup.top - domNode.offsetHeight;
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break;
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default: // Below
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left = this.popup.left;
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top = this.popup.top + this.popup.height;
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break;
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}
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if(!this.positionAllowNegative) {
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left = Math.max(0,left);
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top = Math.max(0,top);
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}
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domNode.style.left = left + "px";
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domNode.style.top = top + "px";
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};
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/*
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Compute the internal state of the widget
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*/
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RevealWidget.prototype.execute = function() {
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// Get our parameters
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this.state = this.getAttribute("state");
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this.revealTag = this.getAttribute("tag");
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this.type = this.getAttribute("type");
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this.text = this.getAttribute("text");
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this.position = this.getAttribute("position");
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this.positionAllowNegative = this.getAttribute("positionAllowNegative") === "yes";
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// class attribute handled in assignDomNodeClasses()
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this.style = this.getAttribute("style","");
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this["default"] = this.getAttribute("default","");
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this.animate = this.getAttribute("animate","no");
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this.retain = this.getAttribute("retain","no");
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this.openAnimation = this.animate === "no" ? undefined : "open";
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this.closeAnimation = this.animate === "no" ? undefined : "close";
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this.updatePopupPosition = this.getAttribute("updatePopupPosition","no") === "yes";
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// Compute the title of the state tiddler and read it
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this.stateTiddlerTitle = this.state;
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this.stateTitle = this.getAttribute("stateTitle");
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this.stateField = this.getAttribute("stateField");
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this.stateIndex = this.getAttribute("stateIndex");
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this.readState();
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// Construct the child widgets
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var childNodes = this.isOpen ? this.parseTreeNode.children : [];
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this.hasChildNodes = this.isOpen;
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this.makeChildWidgets(childNodes);
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};
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/*
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Read the state tiddler
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*/
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RevealWidget.prototype.readState = function() {
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// Read the information from the state tiddler
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var state,
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defaultState = this["default"];
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if(this.stateTitle) {
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var stateTitleTiddler = this.wiki.getTiddler(this.stateTitle);
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if(this.stateField) {
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state = stateTitleTiddler ? stateTitleTiddler.getFieldString(this.stateField) || defaultState : defaultState;
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} else if(this.stateIndex) {
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state = stateTitleTiddler ? this.wiki.extractTiddlerDataItem(this.stateTitle,this.stateIndex) || defaultState : defaultState;
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} else if(stateTitleTiddler) {
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state = this.wiki.getTiddlerText(this.stateTitle) || defaultState;
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} else {
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state = defaultState;
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}
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} else {
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state = this.stateTiddlerTitle ? this.wiki.getTextReference(this.state,this["default"],this.getVariable("currentTiddler")) : this["default"];
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}
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if(state === null) {
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state = this["default"];
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}
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switch(this.type) {
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case "popup":
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this.readPopupState(state);
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break;
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case "match":
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this.isOpen = this.text === state;
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break;
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case "nomatch":
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this.isOpen = this.text !== state;
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break;
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case "lt":
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this.isOpen = !!(this.compareStateText(state) < 0);
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break;
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case "gt":
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this.isOpen = !!(this.compareStateText(state) > 0);
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break;
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case "lteq":
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this.isOpen = !(this.compareStateText(state) > 0);
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break;
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case "gteq":
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this.isOpen = !(this.compareStateText(state) < 0);
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break;
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}
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};
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RevealWidget.prototype.compareStateText = function(state) {
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return state.localeCompare(this.text,undefined,{numeric: true,sensitivity: "case"});
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};
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RevealWidget.prototype.readPopupState = function(state) {
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var popupLocationRegExp = /^\((-?[0-9\.E]+),(-?[0-9\.E]+),(-?[0-9\.E]+),(-?[0-9\.E]+)\)$/,
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match = popupLocationRegExp.exec(state);
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// Check if the state matches the location regexp
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if(match) {
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// If so, we're open
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this.isOpen = true;
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// Get the location
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this.popup = {
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left: parseFloat(match[1]),
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top: parseFloat(match[2]),
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width: parseFloat(match[3]),
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height: parseFloat(match[4])
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};
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} else {
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// If not, we're closed
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this.isOpen = false;
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}
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};
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RevealWidget.prototype.assignDomNodeClasses = function() {
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var classes = this.getAttribute("class","").split(" ");
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classes.push("tc-reveal");
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this.domNode.className = classes.join(" ");
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};
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/*
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Selectively refreshes the widget if needed. Returns true if the widget or any of its children needed re-rendering
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*/
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RevealWidget.prototype.refresh = function(changedTiddlers) {
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var changedAttributes = this.computeAttributes();
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if(changedAttributes.state || changedAttributes.type || changedAttributes.text || changedAttributes.position || changedAttributes.positionAllowNegative || changedAttributes["default"] || changedAttributes.animate || changedAttributes.stateTitle || changedAttributes.stateField || changedAttributes.stateIndex) {
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this.refreshSelf();
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return true;
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} else {
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var currentlyOpen = this.isOpen;
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this.readState();
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if(this.isOpen !== currentlyOpen) {
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if(this.retain === "yes") {
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this.updateState();
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} else {
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this.refreshSelf();
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return true;
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}
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} else if(this.type === "popup" && this.updatePopupPosition && (changedTiddlers[this.state] || changedTiddlers[this.stateTitle])) {
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this.positionPopup(this.domNode);
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}
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if(changedAttributes.style) {
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this.domNode.style = this.getAttribute("style","");
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}
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if(changedAttributes["class"]) {
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this.assignDomNodeClasses();
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}
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return this.refreshChildren(changedTiddlers);
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}
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};
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/*
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Called by refresh() to dynamically show or hide the content
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*/
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RevealWidget.prototype.updateState = function() {
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var self = this;
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// Read the current state
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this.readState();
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// Construct the child nodes if needed
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var domNode = this.domNodes[0];
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if(this.isOpen && !this.hasChildNodes) {
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this.hasChildNodes = true;
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this.makeChildWidgets(this.parseTreeNode.children);
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this.renderChildren(domNode,null);
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}
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// Animate our DOM node
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if(!domNode.isTiddlyWikiFakeDom && this.type === "popup" && this.isOpen) {
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this.positionPopup(domNode);
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$tw.utils.addClass(domNode,"tc-popup"); // Make sure that clicks don't dismiss popups within the revealed content
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}
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if(this.isOpen) {
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domNode.removeAttribute("hidden");
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$tw.anim.perform(this.openAnimation,domNode);
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} else {
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$tw.anim.perform(this.closeAnimation,domNode,{callback: function() {
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//make sure that the state hasn't changed during the close animation
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self.readState()
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if(!self.isOpen) {
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domNode.setAttribute("hidden","true");
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}
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}});
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}
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};
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exports.reveal = RevealWidget;
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})();
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