135 lines
3.6 KiB
JavaScript
Executable File
135 lines
3.6 KiB
JavaScript
Executable File
/*\
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title: $:/core/modules/new_widgets/reveal.js
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type: application/javascript
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module-type: new_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/new_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 domNode = this.document.createElement("div");
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parent.insertBefore(domNode,nextSibling);
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this.renderChildren(domNode,null);
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this.domNodes.push(domNode);
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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.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["default"] = this.getAttribute("default","");
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this.qualifyTiddlerTitles = this.getAttribute("qualifyTiddlerTitles");
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this["class"] = this.getAttribute("class");
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this.animate = this.getAttribute("animate","no");
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// Compute the title of the state tiddler and read it
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this.stateTitle = this.state;
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if(this.qualifyTiddlerTitles) {
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this.stateTitle = this.stateTitle + "-" + this.getStateQualifier();
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}
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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.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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if(this.stateTitle) {
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var state = this.wiki.getTextReference(this.stateTitle,this["default"],this.getVariable("tiddlerTitle"));
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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.readMatchState(state);
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break;
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case "nomatch":
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this.readMatchState(state);
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this.isOpen = !this.isOpen;
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break;
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}
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}
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};
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RevealWidget.prototype.readMatchState = function(state) {
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this.isOpen = state === this.text;
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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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/*
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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["default"] || changedAttributes.qualifyTiddlerTitles || changedAttributes["class"] || changedAttributes.animate || changedTiddlers[this.stateTitle]) {
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this.refreshSelf();
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return true;
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} else {
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return this.refreshChildren(changedTiddlers);
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}
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};
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/*
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Remove any DOM nodes created by this widget or its children
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*/
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RevealWidget.prototype.removeChildDomNodes = function() {
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$tw.utils.each(this.domNodes,function(domNode) {
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domNode.parentNode.removeChild(domNode);
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});
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this.domNodes = [];
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};
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exports.reveal = RevealWidget;
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})();
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