TiddlyWiki5/core/modules/widgets/tiddler.js

67 wiersze
1.8 KiB
JavaScript
Executable File

/*\
title: $:/core/modules/widgets/tiddler.js
type: application/javascript
module-type: widget
Tiddler widget
\*/
(function(){
/*jslint node: true, browser: true */
/*global $tw: false */
"use strict";
var Widget = require("$:/core/modules/widgets/widget.js").widget;
var TiddlerWidget = function(parseTreeNode,options) {
this.initialise(parseTreeNode,options);
};
/*
Inherit from the base widget class
*/
TiddlerWidget.prototype = new Widget();
/*
Render this widget into the DOM
*/
TiddlerWidget.prototype.render = function(parent,nextSibling) {
this.parentDomNode = parent;
this.computeAttributes();
this.execute();
this.renderChildren(parent,nextSibling);
};
/*
Compute the internal state of the widget
*/
TiddlerWidget.prototype.execute = function() {
// Get our parameters
this.tiddlerTitle = this.getAttribute("tiddler",this.getVariable("currentTiddler"));
// Set context variables
this.setVariable("currentTiddler",this.tiddlerTitle);
this.setVariable("missingTiddlerClass",(this.wiki.tiddlerExists(this.tiddlerTitle) || this.wiki.isShadowTiddler(this.tiddlerTitle)) ? "tw-tiddler-exists" : "tw-tiddler-missing");
this.setVariable("shadowTiddlerClass",this.wiki.isShadowTiddler(this.tiddlerTitle) ? "tw-tiddler-shadow" : "");
this.setVariable("systemTiddlerClass",this.wiki.isSystemTiddler(this.tiddlerTitle) ? "tw-tiddler-system" : "");
// Construct the child widgets
this.makeChildWidgets();
};
/*
Selectively refreshes the widget if needed. Returns true if the widget or any of its children needed re-rendering
*/
TiddlerWidget.prototype.refresh = function(changedTiddlers) {
var changedAttributes = this.computeAttributes();
if(changedAttributes.tiddler) {
this.refreshSelf();
return true;
} else {
return this.refreshChildren(changedTiddlers);
}
};
exports.tiddler = TiddlerWidget;
})();