xp-dev.com Git - namibia/blob - public/js/app/event.js

   1 ;(function(){
   2
   3         _App.Event = function()
   4         {
   5                 this.initialize();
   6         };
   7
   8         _App.Event.prototype =
   9         {
  10
  11                 listenerStore : {},
  12
  13                 initialize : function()
  14                 {
  15                                 this.listenerStore = {};
  16                 },
  17
  18                 /**
  19                  * Register an Event Listener.
  20                  * @param id
  21                  * @param event
  22                  * @param callback
  23                  * @param type
  24                  */
  25                 listen : function(id, event, callback, type)
  26                 {
  27                         if (!this.listenerStore[event])
  28                         {
  29                                 this.listenerStore[event] = {};
  30                         }
  31                         this.listenerStore[event][id] = {
  32                                         "callback": callback,
  33                                         "type": (type ? type : "UseOnce")
  34                         };
  35                 },
  36
  37                 /**
  38                  * Remove a registered Event Listener.
  39                  * @param id
  40                  * @param event
  41                  */
  42                 removeListener : function(id, event)
  43                 {
  44                         if (this.listenerStore[event] && this.listenerStore[event][id])
  45                         {
  46                                 delete this.listenerStore[event][id];
  47                         }
  48                 },
  49
  50                 /**
  51                  * Trigger an event.
  52                  * @param event
  53                  * @param data
  54                  */
  55                 trigger : function(event, data)
  56                 {
  57                         if (this.listenerStore[event])
  58                         {
  59                                 for (var id in this.listenerStore[event])
  60                                 {
  61                                         this.listenerStore[event][id]["callback"](event, data);
  62                                         if ("UseOnce" == this.listenerStore[event][id]["type"])
  63                                         {
  64                                                 delete this.listenerStore[event][id];
  65                                         }
  66                                 }
  67                         }
  68                 }
  69
  70         };
  71
  72 })();