mirror of
https://github.com/Jermolene/TiddlyWiki5
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55d479c540
This allows us to invoke macros using the ordinary widget syntax, which in turn allows us to use features like indirection on the parameters.
72 lines
1.9 KiB
JavaScript
72 lines
1.9 KiB
JavaScript
/*\
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title: $:/core/modules/new_widgets/macrocall.js
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type: application/javascript
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module-type: new_widget
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Macrocall 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 MacroCallWidget = 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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MacroCallWidget.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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MacroCallWidget.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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MacroCallWidget.prototype.execute = function() {
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// Merge together the parameters specified in the parse tree with the specified attributes
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var params = this.parseTreeNode.params ? this.parseTreeNode.params.slice(0) : [];
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$tw.utils.each(this.attributes,function(attribute,name) {
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params.push({name: name, value: attribute});
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});
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// Get the macro value
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var text = this.getVariable(this.parseTreeNode.name || this.getAttribute("$name"),params);
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// Parse the macro
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var parser = this.wiki.new_parseText("text/vnd.tiddlywiki",text,
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{parseAsInline: !this.parseTreeNode.isBlock}),
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parseTreeNodes = parser ? parser.tree : [];
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// Construct the child widgets
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this.makeChildWidgets(parseTreeNodes);
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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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MacroCallWidget.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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// Rerender ourselves
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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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exports.macrocall = MacroCallWidget;
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})();
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