mirror of
https://github.com/Jermolene/TiddlyWiki5
synced 2024-11-06 01:56:20 +00:00
2bfe522b72
* $let widget added and tested * Documentation for $let, doc improvements for $vars * let properly avoids refreshing when possible * $let Changes as recommended by others * Removed superfluous super method call Also improved $let test
74 lines
1.5 KiB
JavaScript
74 lines
1.5 KiB
JavaScript
/*\
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title: $:/core/modules/widgets/vars.js
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type: application/javascript
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module-type: widget
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This widget allows multiple variables to be set in one go:
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```
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\define helloworld() Hello world!
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<$vars greeting="Hi" me={{!!title}} sentence=<<helloworld>>>
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<<greeting>>! I am <<me>> and I say: <<sentence>>
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</$vars>
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```
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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 VarsWidget = function(parseTreeNode,options) {
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// Initialise
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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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VarsWidget.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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VarsWidget.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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this.renderChildren(parent,nextSibling);
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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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VarsWidget.prototype.execute = function() {
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// Parse variables
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var self = this;
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$tw.utils.each(this.attributes,function(val,key) {
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if(key.charAt(0) !== "$") {
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self.setVariable(key,val);
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}
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});
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// Construct the child widgets
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this.makeChildWidgets();
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};
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/*
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Refresh the widget by ensuring our attributes are up to date
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*/
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VarsWidget.prototype.refresh = function(changedTiddlers) {
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var changedAttributes = this.computeAttributes();
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if($tw.utils.count(changedAttributes) > 0) {
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this.refreshSelf();
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return true;
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}
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return this.refreshChildren(changedTiddlers);
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};
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exports["vars"] = VarsWidget;
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})();
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