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- goog.provide('goog.labs.useragent.verifier');
- goog.labs.useragent.verifier.NOT_IE = 0;
- goog.labs.useragent.verifier.detectIeVersionByBehavior = function() {
- if (document.all) {
- if (!document.compatMode) {
- return 5;
- }
- if (!window.XMLHttpRequest) {
- return 6;
- }
- if (!document.querySelector) {
- return 7;
- }
- if (!document.addEventListener) {
- return 8;
- }
- if (!window.atob) {
- return 9;
- }
- return 10;
- }
- if (!(window.ActiveXObject) && 'ActiveXObject' in window) {
- return 11;
- }
- return goog.labs.useragent.verifier.NOT_IE;
- };
- goog.labs.useragent.verifier.detectIeVersionByNavigator = function() {
- var ua = navigator.userAgent.toLowerCase();
- if (ua.indexOf('msie') != -1) {
- var value = parseInt(ua.split('msie')[1], 10);
- if (typeof value == 'number' && !isNaN(value)) {
- return value;
- }
- }
- return goog.labs.useragent.verifier.NOT_IE;
- };
- goog.labs.useragent.verifier.getCorrectedIEVersionByNavigator = function() {
- var ua = navigator.userAgent;
- if (/Trident/.test(ua) || /MSIE/.test(ua)) {
- return goog.labs.useragent.verifier.getIEVersion_(ua);
- } else {
- return goog.labs.useragent.verifier.NOT_IE;
- }
- };
- goog.labs.useragent.verifier.getIEVersion_ = function(userAgent) {
-
-
-
-
- var rv = /rv: *([\d\.]*)/.exec(userAgent);
- if (rv && rv[1]) {
- return Number(rv[1]);
- }
- var msie = /MSIE +([\d\.]+)/.exec(userAgent);
- if (msie && msie[1]) {
-
-
-
- var tridentVersion = /Trident\/(\d.\d)/.exec(userAgent);
- if (msie[1] == '7.0') {
- if (tridentVersion && tridentVersion[1]) {
- switch (tridentVersion[1]) {
- case '4.0':
- return 8;
- case '5.0':
- return 9;
- case '6.0':
- return 10;
- case '7.0':
- return 11;
- }
- } else {
- return 7;
- }
- } else {
- return Number(msie[1]);
- }
- }
- return goog.labs.useragent.verifier.NOT_IE;
- };
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