1
0
mirror of https://github.com/Jermolene/TiddlyWiki5 synced 2024-12-04 23:39:57 +00:00
TiddlyWiki5/core/modules/widgets/error.js

64 lines
1.4 KiB
JavaScript

/*\
title: $:/core/modules/widgets/error.js
type: application/javascript
module-type: widget
Error widget
\*/
(function(){
/*jslint node: true, browser: true */
/*global $tw: false */
"use strict";
var Widget = require("$:/core/modules/widgets/widget.js").widget;
var ErrorWidget = function(parseTreeNode,options) {
this.initialise(parseTreeNode,options);
};
/*
Inherit from the base widget class
*/
ErrorWidget.prototype = new Widget();
/*
Render this widget into the DOM
*/
ErrorWidget.prototype.render = function(parent,nextSibling) {
this.parentDomNode = parent;
this.computeAttributes();
this.execute();
var message = this.getAttribute("$message","Unknown error"),
domNode = this.document.createElement("span");
domNode.appendChild(this.document.createTextNode(message));
domNode.className = "tc-error";
parent.insertBefore(domNode,nextSibling);
this.domNodes.push(domNode);
};
/*
Compute the internal state of the widget
*/
ErrorWidget.prototype.execute = function() {
// Nothing to do for a text node
};
/*
Selectively refreshes the widget if needed. Returns true if the widget or any of its children needed re-rendering
*/
ErrorWidget.prototype.refresh = function(changedTiddlers) {
var changedAttributes = this.computeAttributes();
if(changedAttributes["$message"]) {
this.refreshSelf();
return true;
} else {
return false;
}
};
exports.error = ErrorWidget;
})();