lib/dojo/topic.js.uncompressed.js

   1 define("dojo/topic", ["./Evented"], function(Evented){
   2         // summary:
   3         //              The export of this module is a pubsub hub
   4         //              You can also use listen function itself as a pub/sub hub:
   5         //              |       topic.subscribe("some/topic", function(event){
   6         //              |       ... do something with event
   7         //              |       });
   8         //              |       topic.publish("some/topic", {name:"some event", ...});
   9
  10         var hub = new Evented;
  11         return {
  12                 publish: function(topic, event){
  13                         // summary:
  14                         //              Publishes a message to a topic on the pub/sub hub. All arguments after
  15                         //              the first will be passed to the subscribers, so any number of arguments
  16                         //              can be provided (not just event).
  17                         // topic: String
  18                         //              The name of the topic to publish to
  19                         // event: Object
  20                         //              An event to distribute to the topic listeners
  21                         return hub.emit.apply(hub, arguments);
  22                 },
  23                 subscribe: function(topic, listener){
  24                         // summary:
  25                         //              Subcribes to a topic on the pub/sub hub
  26                         // topic: String
  27                         //              The topic to subscribe to
  28                         //      listener: Function
  29                         //              A function to call when a message is published to the given topic
  30                         return hub.on.apply(hub, arguments);
  31                 }
  32         }
  33 });