91 lines
2.5 KiB
JavaScript
91 lines
2.5 KiB
JavaScript
/*\
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title: $:/core/modules/widgets/macrocall.js
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type: application/javascript
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module-type: 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/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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this.macroName = this.parseTreeNode.name || this.getAttribute("$name"),
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this.parseType = this.getAttribute("$type","text/vnd.tiddlywiki");
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this.renderOutput = this.getAttribute("$output","text/html");
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// Merge together the parameters specified in the parse tree with the specified attributes
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var params = this.parseTreeNode.params ? this.parseTreeNode.params.slice(0) : [];
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$tw.utils.each(this.attributes,function(attribute,name) {
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if(name.charAt(0) !== "$") {
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params.push({name: name, value: attribute});
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}
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});
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// Make a transclude widget
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var positionalName = 0,
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parseTreeNodes = [{
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type: "transclude",
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isBlock: this.parseTreeNode.isBlock
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}];
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$tw.utils.addAttributeToParseTreeNode(parseTreeNodes[0],"$variable",this.macroName);
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$tw.utils.addAttributeToParseTreeNode(parseTreeNodes[0],"$type",this.parseType);
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$tw.utils.addAttributeToParseTreeNode(parseTreeNodes[0],"$output",this.renderOutput);
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$tw.utils.each(params,function(param) {
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var name = param.name;
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if(name) {
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if(name.charAt(0) === "$") {
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name = "$" + name;
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}
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$tw.utils.addAttributeToParseTreeNode(parseTreeNodes[0],name,param.value);
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} else {
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$tw.utils.addAttributeToParseTreeNode(parseTreeNodes[0],(positionalName++) + "",param.value);
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}
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});
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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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