Subversion Repositories Applications.papyrus

/*
        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;
};