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36 lines
1007 B
JavaScript
36 lines
1007 B
JavaScript
12 years ago
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define("dojo/Evented", ["./aspect", "./on"], function(aspect, on){
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// module:
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// dojo/Evented
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"use strict";
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var after = aspect.after;
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function Evented(){
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// summary:
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// A class that can be used as a mixin or base class,
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// to add on() and emit() methods to a class
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// for listening for events and emitting events:
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//
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// | define(["dojo/Evented"], function(Evented){
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// | var EventedWidget = dojo.declare([Evented, dijit._Widget], {...});
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// | widget = new EventedWidget();
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// | widget.on("open", function(event){
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// | ... do something with event
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// | });
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// |
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// | widget.emit("open", {name:"some event", ...});
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}
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Evented.prototype = {
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on: function(type, listener){
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return on.parse(this, type, listener, function(target, type){
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return after(target, 'on' + type, listener, true);
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});
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},
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emit: function(type, event){
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var args = [this];
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args.push.apply(args, arguments);
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return on.emit.apply(on, args);
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}
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};
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return Evented;
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});
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