mirror of
https://github.com/Jermolene/TiddlyWiki5
synced 2024-07-02 02:03:14 +00:00
76 lines
1.9 KiB
JavaScript
76 lines
1.9 KiB
JavaScript
/*\
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title: $:/$:/plugins/tiddlywiki/internals/widgets/parse-tree.js
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type: application/javascript
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module-type: widget
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Widget to render the parse tree of a tiddler
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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 ParseTreeWidget = 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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ParseTreeWidget.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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ParseTreeWidget.prototype.render = function(parent,nextSibling) {
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var self = this;
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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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ParseTreeWidget.prototype.execute = function() {
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// Get our parameters
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this.parseTreeTitle = this.getAttribute("tiddler",this.getVariable("currentTiddler"));
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this.parseTreeInlineMode = this.getAttribute("mode","block") === "inline";
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// Compute the parse tree
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var parser = this.wiki.parseTiddler(this.parseTreeTitle,{parseAsInline: this.parseTreeInlineMode}),
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parseTreeNodes = [];
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if(parser) {
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parseTreeNodes = [{
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type: "codeblock",
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attributes: {
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code: {type: "string", value: JSON.stringify(parser.tree,0,$tw.config.preferences.jsonSpaces)},
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language: {type: "string", value: "json"}
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}
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}];
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}
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// Make 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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ParseTreeWidget.prototype.refresh = function(changedTiddlers) {
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var changedAttributes = this.computeAttributes();
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// Completely rerender if any of our attributes have changed
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if(changedAttributes.tiddler || changedAttributes.mode || changedTiddlers[this.parseTreeTitle]) {
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this.refreshSelf();
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return true;
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}
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return false;
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};
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exports["parse-tree"] = ParseTreeWidget;
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})();
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