[ExtJS] Get listeners of an observable object (Ext.util.Observable): suggested useful method of Ext.util.Observable class.

gistfile1.js

/* --------------------------------- */
Ext.define ('My.observable.Object', {
	mixins: {
		observable: 'Ext.util.Observable'
	} ,

	constructor: function (cfg) {
		var me = this;
		me.initConfig (cfg);
		me.mixins.observable.constructor.call (me, cfg);

		me.addEvents (['ciao']);
	} ,

	/**
	* @method getListeners
	* Get every listener attached
	* @private
	*/
	getListeners: function () {
		var me = this ,
			listeners = {};

		for (var event in me.hasListeners) {
			listeners[event] = [];

			if (me.events[event]) {
				var listenersList = me.events[event].listeners;
				for (var i in listenersList) {
					listeners[event].push (listenersList[i].fn); 
				}
			}
			else delete listeners[event];
		}

		return listeners;
	}
});
/* --------------------------------- */

/* TEST */
var myObj = Ext.create ('My.observable.Object');

myObj.on ({
	first: function (foo) {console.log(foo);} ,
	second: function (bar) {console.log(bar);} ,
	third: function (kungfoo) {console.log(kungfoo);} ,
	fourth: function (foobar) {console.log(foobar);} ,
});

myObj.on ('first', function (kungfoobar) {console.log(kungfoobar);});

console.log (myObj.getListeners ());

var listeners = myObj.getListeners ();

myObj.destroy ();

var myObj2 = Ext.create ('My.observable.Object');

// Attach back every listener
for (var listener in listeners) {
	for (var i = 0; i < listeners[listener].length; i++) {
		myObj2.on (listener, listeners[listener][i]);
	}
}

console.log (myObj2.getListeners ());