kopia lustrzana https://github.com/miklobit/TiddlyWiki5
83 wiersze
2.5 KiB
JavaScript
83 wiersze
2.5 KiB
JavaScript
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/*\
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title: $:/core/modules/widgets/tiddler.js
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type: application/javascript
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module-type: widget
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The tiddler widget sets the current tiddler to a specified title.
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Attributes:
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title: the title of the current tiddler
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class: CSS classes
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\*/
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(function(){
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/*jslint node: true, browser: true */
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/*global $tw: false */
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"use strict";
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var TiddlerWidget = function(renderer) {
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// Save state
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this.renderer = renderer;
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// Generate child nodes
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this.generate();
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};
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TiddlerWidget.prototype.generate = function() {
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var self = this;
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this.tiddlerTitle = this.renderer.getAttribute("title","");
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// Set up the attributes for the wrapper element
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var classes = ["tw-tiddler"];
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if(this.renderer.hasAttribute("class")) {
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$tw.utils.pushTop(classes,this.renderer.getAttribute("class").split(" "));
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}
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if(!this.renderer.renderTree.wiki.tiddlerExists(this.tiddlerTitle) && !this.renderer.renderTree.wiki.isShadowTiddler(this.tiddlerTitle)) {
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$tw.utils.pushTop(classes,"tw-tiddler-missing");
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}
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// Save the context for this renderer node
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this.renderer.context = {
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tiddlerTitle: this.tiddlerTitle
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};
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// Initialise events
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this.events = [];
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// Trap and update tag modification events
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this.events.push({name: "tw-remove-tag", handlerFunction: function(event) {
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event.currentTag = self.tiddlerTitle;
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return true;
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}});
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// Set the element
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this.tag = this.renderer.parseTreeNode.isBlock ? "div" : "span";
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this.attributes = {};
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if(classes.length > 0) {
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this.attributes["class"] = classes.join(" ");
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}
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this.children = this.renderer.renderTree.createRenderers(this.renderer,this.renderer.parseTreeNode.children);
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};
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TiddlerWidget.prototype.refreshInDom = function(changedAttributes,changedTiddlers) {
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// Set the class for missing tiddlers
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if(this.tiddlerTitle && changedTiddlers[this.tiddlerTitle]) {
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$tw.utils.toggleClass(this.renderer.domNode,"tw-tiddler-missing",!this.renderer.renderTree.wiki.tiddlerExists(this.tiddlerTitle));
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}
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// Check if any of our attributes have changed, or if a tiddler we're interested in has changed
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if(changedAttributes.title) {
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// Regenerate and rerender the widget and replace the existing DOM node
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this.generate();
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var oldDomNode = this.renderer.domNode,
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newDomNode = this.renderer.renderInDom();
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oldDomNode.parentNode.replaceChild(newDomNode,oldDomNode);
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} else {
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// We don't need to refresh ourselves, so just refresh any child nodes
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$tw.utils.each(this.children,function(node) {
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if(node.refreshInDom) {
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node.refreshInDom(changedTiddlers);
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}
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});
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}
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};
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exports.tiddler = TiddlerWidget;
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})();
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