spreed-webrtc/static/js/libs/modernizr.js

/* Modernizr 2.8.3 (Custom Build) | MIT & BSD
 * Build: http://modernizr.com/download/#-indexeddb-localstorage-websockets-geolocation-prefixed-testprop-testallprops-domprefixes-css_objectfit
 */
;



window.Modernizr = (function( window, document, undefined ) {

    var version = '2.8.3',

    Modernizr = {},


    docElement = document.documentElement,

    mod = 'modernizr',
    modElem = document.createElement(mod),
    mStyle = modElem.style,

    inputElem  ,


    toString = {}.toString,    omPrefixes = 'Webkit Moz O ms',

    cssomPrefixes = omPrefixes.split(' '),

    domPrefixes = omPrefixes.toLowerCase().split(' '),


    tests = {},
    inputs = {},
    attrs = {},

    classes = [],

    slice = classes.slice,

    featureName,



    _hasOwnProperty = ({}).hasOwnProperty, hasOwnProp;

    if ( !is(_hasOwnProperty, 'undefined') && !is(_hasOwnProperty.call, 'undefined') ) {
      hasOwnProp = function (object, property) {
        return _hasOwnProperty.call(object, property);
      };
    }
    else {
      hasOwnProp = function (object, property) {
        return ((property in object) && is(object.constructor.prototype[property], 'undefined'));
      };
    }


    if (!Function.prototype.bind) {
      Function.prototype.bind = function bind(that) {

        var target = this;

        if (typeof target != "function") {
            throw new TypeError();
        }

        var args = slice.call(arguments, 1),
            bound = function () {

            if (this instanceof bound) {

              var F = function(){};
              F.prototype = target.prototype;
              var self = new F();

              var result = target.apply(
                  self,
                  args.concat(slice.call(arguments))
              );
              if (Object(result) === result) {
                  return result;
              }
              return self;

            } else {

              return target.apply(
                  that,
                  args.concat(slice.call(arguments))
              );

            }

        };

        return bound;
      };
    }

    function setCss( str ) {
        mStyle.cssText = str;
    }

    function setCssAll( str1, str2 ) {
        return setCss(prefixes.join(str1 + ';') + ( str2 || '' ));
    }

    function is( obj, type ) {
        return typeof obj === type;
    }

    function contains( str, substr ) {
        return !!~('' + str).indexOf(substr);
    }

    function testProps( props, prefixed ) {
        for ( var i in props ) {
            var prop = props[i];
            if ( !contains(prop, "-") && mStyle[prop] !== undefined ) {
                return prefixed == 'pfx' ? prop : true;
            }
        }
        return false;
    }

    function testDOMProps( props, obj, elem ) {
        for ( var i in props ) {
            var item = obj[props[i]];
            if ( item !== undefined) {

                            if (elem === false) return props[i];

                            if (is(item, 'function')){
                                return item.bind(elem || obj);
                }

                            return item;
            }
        }
        return false;
    }

    function testPropsAll( prop, prefixed, elem ) {

        var ucProp  = prop.charAt(0).toUpperCase() + prop.slice(1),
            props   = (prop + ' ' + cssomPrefixes.join(ucProp + ' ') + ucProp).split(' ');

            if(is(prefixed, "string") || is(prefixed, "undefined")) {
          return testProps(props, prefixed);

            } else {
          props = (prop + ' ' + (domPrefixes).join(ucProp + ' ') + ucProp).split(' ');
          return testDOMProps(props, prefixed, elem);
        }
    }


    tests['geolocation'] = function() {
        return 'geolocation' in navigator;
    };
    tests['indexedDB'] = function() {
      return !!testPropsAll("indexedDB", window);
    };    tests['websockets'] = function() {
        return 'WebSocket' in window || 'MozWebSocket' in window;
    };

    tests['localstorage'] = function() {
        try {
            localStorage.setItem(mod, mod);
            localStorage.removeItem(mod);
            return true;
        } catch(e) {
            return false;
        }
    };


    for ( var feature in tests ) {
        if ( hasOwnProp(tests, feature) ) {
                                    featureName  = feature.toLowerCase();
            Modernizr[featureName] = tests[feature]();

            classes.push((Modernizr[featureName] ? '' : 'no-') + featureName);
        }
    }



     Modernizr.addTest = function ( feature, test ) {
       if ( typeof feature == 'object' ) {
         for ( var key in feature ) {
           if ( hasOwnProp( feature, key ) ) {
             Modernizr.addTest( key, feature[ key ] );
           }
         }
       } else {

         feature = feature.toLowerCase();

         if ( Modernizr[feature] !== undefined ) {
                                              return Modernizr;
         }

         test = typeof test == 'function' ? test() : test;

         if (typeof enableClasses !== "undefined" && enableClasses) {
           docElement.className += ' ' + (test ? '' : 'no-') + feature;
         }
         Modernizr[feature] = test;

       }

       return Modernizr;
     };


    setCss('');
    modElem = inputElem = null;


    Modernizr._version      = version;

    Modernizr._domPrefixes  = domPrefixes;
    Modernizr._cssomPrefixes  = cssomPrefixes;



    Modernizr.testProp      = function(prop){
        return testProps([prop]);
    };

    Modernizr.testAllProps  = testPropsAll;


    Modernizr.prefixed      = function(prop, obj, elem){
      if(!obj) {
        return testPropsAll(prop, 'pfx');
      } else {
            return testPropsAll(prop, obj, elem);
      }
    };



    return Modernizr;

})(this, this.document);

// dev.opera.com/articles/view/css3-object-fit-object-position/

Modernizr.addTest('object-fit',
  !!Modernizr.prefixed('objectFit')
);;