3 This file is part of Ext JS 4
5 Copyright (c) 2011 Sencha Inc
7 Contact: http://www.sencha.com/contact
9 GNU General Public License Usage
10 This file may be used under the terms of the GNU General Public License version 3.0 as published by the Free Software Foundation and appearing in the file LICENSE included in the packaging of this file. Please review the following information to ensure the GNU General Public License version 3.0 requirements will be met: http://www.gnu.org/copyleft/gpl.html.
12 If you are unsure which license is appropriate for your use, please contact the sales department at http://www.sencha.com/contact.
16 * @class Ext.app.EventBus
19 Ext.define('Ext.app.EventBus', {
24 observable: 'Ext.util.Observable'
27 constructor: function() {
28 this.mixins.observable.constructor.call(this);
33 Ext.override(Ext.Component, {
34 fireEvent: function(ev) {
35 if (Ext.util.Observable.prototype.fireEvent.apply(this, arguments) !== false) {
36 return me.dispatch.call(me, ev, this, arguments);
43 dispatch: function(ev, target, args) {
46 selector, controllers, id, events, event, i, ln;
49 // Loop over all the selectors that are bound to this event
50 for (selector in selectors) {
51 // Check if the target matches the selector
52 if (target.is(selector)) {
53 // Loop over all the controllers that are bound to this selector
54 controllers = selectors[selector];
55 for (id in controllers) {
56 // Loop over all the events that are bound to this selector on this controller
57 events = controllers[id];
58 for (i = 0, ln = events.length; i < ln; i++) {
61 if (event.fire.apply(event, Array.prototype.slice.call(args, 1)) === false) {
71 control: function(selectors, listeners, controller) {
75 if (Ext.isString(selectors)) {
78 selectors[selector] = listeners;
79 this.control(selectors, null, controller);
83 Ext.Object.each(selectors, function(selector, listeners) {
84 Ext.Object.each(listeners, function(ev, listener) {
87 event = Ext.create('Ext.util.Event', controller, ev);
89 // Normalize the listener
90 if (Ext.isObject(listener)) {
92 listener = options.fn;
93 scope = options.scope || controller;
98 event.addListener(listener, scope, options);
100 // Create the bus tree if it is not there yet
101 bus[ev] = bus[ev] || {};
102 bus[ev][selector] = bus[ev][selector] || {};
103 bus[ev][selector][controller.id] = bus[ev][selector][controller.id] || [];
105 // Push our listener in our bus
106 bus[ev][selector][controller.id].push(event);