2 * ================================================================================
4 * ================================================================================
5 * Copyright (C) 2017 AT&T Intellectual Property
6 * ================================================================================
7 * Licensed under the Apache License, Version 2.0 (the "License");
8 * you may not use this file except in compliance with the License.
9 * You may obtain a copy of the License at
11 * http://www.apache.org/licenses/LICENSE-2.0
13 * Unless required by applicable law or agreed to in writing, software
14 * distributed under the License is distributed on an "AS IS" BASIS,
15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16 * See the License for the specific language governing permissions and
17 * limitations under the License.
18 * ================================================================================
20 var isOpera = !!window.opera || navigator.userAgent.indexOf(' OPR/') >= 0;
21 var isFirefox = typeof window.InstallTrigger !== 'undefined';
22 var isSafari = Object.prototype.toString.call(window.HTMLElement).indexOf('Constructor') > 0;
23 var isChrome = !!window.chrome && !isOpera;
24 var isIE = !!document.documentMode;