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@arturparkhisenko
Forked from addyosmani/example.js
Created July 3, 2015 07:38
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// Example 1
mediator.name = 'Doug';
mediator.subscribe('nameChange', function(arg){
console.log(this.name);
this.name = arg;
console.log(this.name);
});
mediator.publish('nameChange', 'Jorn');
// Example 2
var obj = { name : 'John' };
mediator.installTo(obj);
obj.subscribe('nameChange', function(arg){
console.log(this.name);
this.name = arg;
console.log(this.name);
});
obj.publish('nameChange', 'Sam');
var mediator = (function(){
var subscribe = function(channel, fn){
if(!mediator.channels[channel]) mediator.channels[channel] = [];
mediator.channels[channel].push({ context : this, callback : fn });
return this;
};
var publish = function(channel){
if(!mediator.channels[channel]) return false;
var args = Array.prototype.slice.call(arguments, 1);
for(var i = 0, l = mediator.channels[channel].length; i < l; i++){
var subscription = mediator.channels[channel][i];
subscription.callback.apply(subscription.context.args);
};
return this;
};
return {
channels : {},
publish : publish,
subscribe : subscribe,
installTo : function(obj){
obj.subscribe = subscribe;
obj.publish = publish;
}
};
}());
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