mirror of
https://github.com/Jermolene/TiddlyWiki5
synced 2024-07-01 01:33:16 +00:00
70 lines
1.6 KiB
JavaScript
70 lines
1.6 KiB
JavaScript
/*\
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title: $:/plugins/tiddlywiki/railroad/wrapper.js
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type: application/javascript
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module-type: widget
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Wrapper for `railroad-diagrams.js` that provides a `<$railroad>` widget.
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\*/
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(function(){
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/*jslint node: true, browser: true */
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/*global $tw: false */
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"use strict";
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var Parser = require("$:/plugins/tiddlywiki/railroad/parser.js").parser,
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Widget = require("$:/core/modules/widgets/widget.js").widget;
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var RailroadWidget = 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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RailroadWidget.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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RailroadWidget.prototype.render = function(parent,nextSibling) {
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// Housekeeping
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this.parentDomNode = parent;
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this.computeAttributes();
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this.execute();
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// Get the source text
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var source = this.getAttribute("text",this.parseTreeNode.text || "");
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// Create a div to contain the SVG or error message
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var div = this.document.createElement("div");
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try {
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// Parse the source
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var parser = new Parser(source);
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if(this.getAttribute("mode","svg") === "debug") {
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var output = ["<pre>"];
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parser.root.debug(output, "");
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output.push("</pre>");
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div.innerHTML = output.join("");
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} else {
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div.innerHTML = parser.root.toSvg();
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}
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} catch(ex) {
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div.className = "tc-error";
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div.textContent = ex;
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}
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// Insert it into the DOM
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parent.insertBefore(div,nextSibling);
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this.domNodes.push(div);
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};
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RailroadWidget.prototype.refresh = function(changedTiddlers) {
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var changedAttributes = this.computeAttributes();
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if(changedAttributes.text) {
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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.railroad = RailroadWidget;
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})(); |