122 lines
No EOL
2.5 KiB
JavaScript
122 lines
No EOL
2.5 KiB
JavaScript
function sub(type,handler){
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checkScope.apply(this);
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if(!this._events_[type])
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this._events_[type]=[];
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this._events_[type].push(handler);
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}
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function unsub(type,handler){
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checkScope.apply(this);
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if(type=='*'){
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var params=Array.prototype.slice.call(arguments,1);
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for(
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var keys = Object.keys(this._events_),
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count = keys.length,
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i=0;
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i<count;
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i++
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){
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var args=params.unshift(keys[i]);
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this.off.call(args);
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}
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}
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if(!this._events_[type])
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return;
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if(!handler){
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delete this._events_[type];
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return;
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}
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if(this._events_[type].length<2){
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delete this._events_[type];
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return;
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}
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for(var i=0,
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count=this._events_[type].length;
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i<count;
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i++
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){
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if(this._events_[type][i]==handler)
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this._events_[type].splice(i,1);
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return;
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}
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}
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function pub(type){
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checkScope.apply(this);
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if(this._events_['*'] && type!='*'){
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var params=Array.prototype.slice.call(arguments);
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params.unshift('*');
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this.trigger.apply(this,params);
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}
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if(!this._events_[type])
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return;
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for(var i=0,
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events=this._events_[type],
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count=events.length,
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args=Array.prototype.slice.call(arguments,1);
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i<count;
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i++){
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events[i].apply(this, args);
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}
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}
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function checkScope(){
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if(!this._events_)
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this._events_={};
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}
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function init(scope){
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if(!scope)
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return {
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on:sub,
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off:unsub,
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trigger:pub
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};
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scope.on=(
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function(scope){
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return function(){
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sub.apply(
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scope,
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Array.prototype.slice.call(arguments)
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);
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}
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}
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)(scope);
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scope.off=(
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function(scope){
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return function(){
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unsub.apply(
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scope,
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Array.prototype.slice.call(arguments)
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);
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}
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}
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)(scope);
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scope.trigger=(
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function(scope){
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return function(){
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pub.apply(
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scope,
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Array.prototype.slice.call(arguments)
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);
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}
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}
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)(scope);
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scope._events_={};
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}
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module.exports=init |