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var CustomObject = function () { | |
var _this = this; | |
_this.events = {}; | |
_this.addEventListener = function(name, handler) { | |
if (_this.events.hasOwnProperty(name)) | |
_this.events[name].push(handler); | |
else | |
_this.events[name] = [handler]; | |
}; | |
_this.removeEventListener = function(name, handler) { | |
/* This is a bit tricky, because how would you identify functions? | |
This simple solution should work if you pass THE SAME handler. */ | |
if (!_this.events.hasOwnProperty(name)) | |
return; | |
var index = _this.events[name].indexOf(handler); | |
if (index != -1) | |
_this.events[name].splice(index, 1); | |
}; | |
_this.fireEvent = function(name, args) { | |
if (!_this.events.hasOwnProperty(name)) | |
return; | |
if (!args || !args.length) | |
args = []; | |
var evs = _this.events[name], l = evs.length; | |
for (var i = 0; i < l; i++) { | |
evs[i].apply(null, args); | |
} | |
}; | |
} |
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