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Code Issues Releases Wiki Activity

Add a linkcatcher widget

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This commit is contained in:
Jeremy Ruston 2013-10-16 16:30:06 +01:00
parent adb395d10f
commit a3eaffa666
2 changed files with 87 additions and 1 deletions
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87
core/modules/new_widgets/linkcatcher.js Normal file
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@ -0,0 +1,87 @@
/*\
title: $:/core/modules/new_widgets/linkcatcher.js
type: application/javascript
module-type: new_widget
Linkcatcher widget
\*/
(function(){
/*jslint node: true, browser: true */
/*global $tw: false */
"use strict";
var Widget = require("$:/core/modules/new_widgets/widget.js").widget;
var LinkCatcherWidget = function(parseTreeNode,options) {
this.initialise(parseTreeNode,options);
this.addEventListeners([
{type: "tw-navigate", handler: "handleNavigateEvent"}
]);
};
/*
Inherit from the base widget class
*/
LinkCatcherWidget.prototype = new Widget();
/*
Render this widget into the DOM
*/
LinkCatcherWidget.prototype.render = function(parent,nextSibling) {
this.parentDomNode = parent;
this.computeAttributes();
this.execute();
this.renderChildren(parent,nextSibling);
};
/*
Compute the internal state of the widget
*/
LinkCatcherWidget.prototype.execute = function() {
// Get our parameters
this.catchTo = this.getAttribute("to");
this.catchMessage = this.getAttribute("message");
this.catchSet = this.getAttribute("set");
this.catchSetTo = this.getAttribute("setTo");
// Construct the child widgets
this.makeChildWidgets();
};
/*
Selectively refreshes the widget if needed. Returns true if the widget or any of its children needed re-rendering
*/
LinkCatcherWidget.prototype.refresh = function(changedTiddlers) {
var changedAttributes = this.computeAttributes();
if(changedAttributes.to || changedAttributes.message || changedAttributes.set || changedAttributes.setTo) {
this.refreshSelf();
return true;
} else {
return this.refreshChildren(changedTiddlers);
}
};
/*
Handle a tw-navigate event
*/
LinkCatcherWidget.prototype.handleNavigateEvent = function(event) {
if(this.catchTo) {
this.wiki.setTextReference(this.catchTo,event.navigateTo,this.getVariable("tiddlerTitle"));
}
if(this.catchMessage) {
this.dispatchEvent({
type: this.catchMessage,
param: event.navigateTo
});
}
if(this.catchSet) {
var tiddler = this.wiki.getTiddler(this.catchSet);
this.wiki.addTiddler(new $tw.Tiddler(tiddler,{title: this.catchSet, text: this.catchSetTo}));
}
return false;
};
exports.linkcatcher = LinkCatcherWidget;
})();

1
core/modules/new_widgets/tempwidgets.js
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@ -14,7 +14,6 @@ Temporary shim widgets
var Widget = require("$:/core/modules/new_widgets/widget.js").widget; var Widget = require("$:/core/modules/new_widgets/widget.js").widget;
exports.linkcatcher = Widget;
exports["import"] = Widget; exports["import"] = Widget;
})(); })();