Created
April 10, 2012 14:10
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EventEmitter = {}; | |
EventEmitter.bind = function(event_name, fn) { | |
this.handlers || (this.handlers = {}); | |
this.handlers[event_name] || (this.handlers[event_name] = []); | |
this.handlers[event_name].push(fn); | |
return this; | |
}; | |
EventEmitter.emit = function(event_name) { | |
if(!this.handlers || !this.handlers[event_name] || this.handlers[event_name].length == 0) return; | |
var i = 0, fn = null; | |
var argsArray = Array.prototype.slice.apply(arguments); | |
argsArray.shift(); | |
for(; i<this.handlers[event_name].length; i++) | |
this.handlers[event_name][i](argsArray); | |
return this; | |
}; | |
EventEmitter.registerClassEvent = EventEmitter.registerClassEvents = function(klass, events) { | |
var events = events.split(" "); | |
var i = 0, event = null; | |
for(; i<events.length; i++) | |
(function(event_name) { | |
klass.prototype[event_name] || (klass.prototype[event_name] = function(fn) { return this.bind(event_name, fn); }); | |
})(events[i]); | |
klass.prototype.bind || (klass.prototype.bind = EventEmitter.bind); | |
klass.prototype.emit || (klass.prototype.emit = EventEmitter.emit); | |
}; |
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