src/service/sniffer.js


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'use strict';

/**
 * !!! This is an undocumented "private" service !!!
 *
 * @name angular.module.ng.$sniffer
 * @requires $window
 *
 * @property {boolean} history Does the browser support html5 history api ?
 * @property {boolean} hashchange Does the browser support hashchange event ?
 *
 * @description
 * This is very simple implementation of testing browser's features.
 */
function $SnifferProvider(){
  this.$get = ['$window', function($window){
    return {
      history: !!($window.history && $window.history.pushState),
      hashchange: 'onhashchange' in $window &&
                  // IE8 compatible mode lies
                  (!$window.document.documentMode || $window.document.documentMode > 7)
    };
  }];
}