| /* |
| Copyright (c) 2004-2006, The Dojo Foundation |
| All Rights Reserved. |
| |
| Licensed under the Academic Free License version 2.1 or above OR the |
| modified BSD license. For more information on Dojo licensing, see: |
| |
| http://dojotoolkit.org/community/licensing.shtml |
| */ |
| |
| |
| |
| dojo.provide("dojo.data.old.Observable"); |
| dojo.require("dojo.lang.common"); |
| dojo.require("dojo.lang.assert"); |
| dojo.data.old.Observable = function () { |
| }; |
| dojo.data.old.Observable.prototype.addObserver = function (observer) { |
| dojo.lang.assertType(observer, Object); |
| dojo.lang.assertType(observer.observedObjectHasChanged, Function); |
| if (!this._arrayOfObservers) { |
| this._arrayOfObservers = []; |
| } |
| if (!dojo.lang.inArray(this._arrayOfObservers, observer)) { |
| this._arrayOfObservers.push(observer); |
| } |
| }; |
| dojo.data.old.Observable.prototype.removeObserver = function (observer) { |
| if (!this._arrayOfObservers) { |
| return; |
| } |
| var index = dojo.lang.indexOf(this._arrayOfObservers, observer); |
| if (index != -1) { |
| this._arrayOfObservers.splice(index, 1); |
| } |
| }; |
| dojo.data.old.Observable.prototype.getObservers = function () { |
| return this._arrayOfObservers; |
| }; |
| |
