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TiddlyWiki5/core/modules/widgets/entity.js
ento 222821804e
Fix Entity widget not rendering its content without a refresh (#4776)
* Expose TEXT_NODE and ELEMENT_NODE constants

* Add failing test for initial rendering of entity widget

* Compute attributes when rendering
2020-07-31 08:25:15 +01:00

61 lines
1.3 KiB
JavaScript
Executable File

/*\
title: $:/core/modules/widgets/entity.js
type: application/javascript
module-type: widget
HTML entity widget
\*/
(function(){
/*jslint node: true, browser: true */
/*global $tw: false */
"use strict";
var Widget = require("$:/core/modules/widgets/widget.js").widget;
var EntityWidget = function(parseTreeNode,options) {
this.initialise(parseTreeNode,options);
};
/*
Inherit from the base widget class
*/
EntityWidget.prototype = new Widget();
/*
Render this widget into the DOM
*/
EntityWidget.prototype.render = function(parent,nextSibling) {
this.parentDomNode = parent;
this.computeAttributes();
this.execute();
var entityString = this.getAttribute("entity",this.parseTreeNode.entity || ""),
textNode = this.document.createTextNode($tw.utils.entityDecode(entityString));
parent.insertBefore(textNode,nextSibling);
this.domNodes.push(textNode);
};
/*
Compute the internal state of the widget
*/
EntityWidget.prototype.execute = function() {
};
/*
Selectively refreshes the widget if needed. Returns true if the widget or any of its children needed re-rendering
*/
EntityWidget.prototype.refresh = function(changedTiddlers) {
var changedAttributes = this.computeAttributes();
if(changedAttributes.entity) {
this.refreshSelf();
return true;
} else {
return false;
}
};
exports.entity = EntityWidget;
})();