@qooxdoo/framework/apps/demobrowser/script/qxl.demobrowser.demo.event.Event_Bus.src.js

The JS Framework for Coders

/* ************************************************************************

   qooxdoo - the new era of web development

   http://qooxdoo.org

   Copyright:
     2004-2008 1&1 Internet AG, Germany, http://www.1und1.de

   License:
     MIT: https://opensource.org/licenses/MIT
     See the LICENSE file in the project's top-level directory for details.

   Authors:
     * Alexander Steitz (aback)

************************************************************************ */

/**
 * @tag noPlayground
 */
qx.Class.define("qxl.demobrowser.demo.event.Event_Bus",
{
  extend : qxl.demobrowser.demo.event.EventDemo,


  members :
  {
    main : function()
    {
      this.base(arguments);

      this._initLogger(
        ["Subscribe", "Dispatch", "Receiving", "Message", "Callback"],
        document.getElementById("logger"),
        50
      );

      var eventBus = qx.event.message.Bus;

      // subscribe to message "start"
      eventBus.subscribe("start", this._startCallback, this);
      this._log(["X", "", "", "start", "_startCallback"]);

      // subscribe to message "start"
      eventBus.subscribe("start", this._anotherStartCallback, this);
      this._log(["X", "", "", "start", "_anotherStartCallback"]);

      // subscribe to message "loading"
      eventBus.subscribe("loading", this._loadingCallback, this);
      this._log(["X", "", "", "loading", "_loadingCallback"]);

      // subscribe to message "finished"
      eventBus.subscribe("finished", this._finishedCallback, this);
      this._log(["X", "", "", "finished", "_finishedCallback"]);

      // subscribe to message "finished"
      eventBus.subscribe("finished", this._anotherFinishedCallback, this);
      this._log(["X", "", "", "finished", "_anotherFinishedCallback"]);


      // send messages in timeouts

      // 'start' message
      qx.event.Timer.once(function(e){
        this._log(["", "X", "", "start", ""]);
        eventBus.getInstance().dispatchByName("start");
      }, this, 1000);


      // 'loading' message
      qx.event.Timer.once(function(e){
        this._log(["", "X", "", "loading", ""]);
        eventBus.getInstance().dispatchByName("loading");
      }, this, 2500);


      // 'loading' message
      qx.event.Timer.once(function(e){
        this._log(["", "X", "", "loading", ""]);
        eventBus.getInstance().dispatchByName("loading");
      }, this, 4000);


      // 'finished' message
      qx.event.Timer.once(function(e){
        this._log(["", "X", "", "finished", ""]);
        eventBus.getInstance().dispatchByName("finished");
      }, this, 5000);
    },


    _startCallback : function(e)
    {
      this._log(["", "", "X", "start", "_startCallback"]);
    },

    _anotherStartCallback : function(e)
    {
      this._log(["", "", "X", "start", "_anotherStartCallback"]);
    },

    _loadingCallback : function(e)
    {
      this._log(["", "", "X", "loading", "_loadingCallback"]);
    },

    _finishedCallback : function(e)
    {
      this._log(["", "", "X", "finished", "_finishedCallback"]);
    },

    _anotherFinishedCallback : function(e)
    {
      this._log(["", "", "X", "finished", "_anotherFinishedCallback"]);
    }
  }
});