68 lines
2.5 KiB
JavaScript
68 lines
2.5 KiB
JavaScript
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/**
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; under version 2
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* of the License (non-upgradable).
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* Copyright (c) 2014 (original work) Open Assessment Technologies SA (under the project TAO-PRODUCT);
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*
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*
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*/
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define(['jquery', 'lodash'], function($, _){
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function hasAccess(windowElt){
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//if we are in the same domain, the parent must place the __knownParent__ variable
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return !!(window.__knownParent__ && windowElt && windowElt !== window);
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}
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/**
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* Use to notify an event from an iframe to it's parent.
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* If you're not in an iframe, nothing will happen.
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*
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* @author Bertrand Chevrier <bertrand@taotesting.com>
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* @exports iframeNotifier
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*/
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var xDomMessaging = {
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/**
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* Notify the parent window's document
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* @param {String} eventName - the name of the
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* @param {Array} [args] - event arguments
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*/
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parent : function(eventName, args){
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_.defer(function(){ //in next tick for thread safety
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if (hasAccess(window.parent) && window.parent.$) {
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var _$ = window.parent.$; //parent window jQuery instance
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_$(window.parent.document).trigger(eventName, args || []);
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}
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});
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},
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/**
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* Notify the top window's document
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* @param {String} eventName - the name of the
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* @param {Array} [args] - event arguments
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*/
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top : function(eventName, args){
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_.defer(function(){ //in next tick for thread safety
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if (hasAccess(window.top) && window.top.$) {
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var _$ = window.top.$; //parent window jQuery instance
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_$(window.top.document).trigger(eventName, args || []);
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}
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});
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}
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};
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return xDomMessaging;
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});
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