drupal/core/misc/modernizr/modernizr.js

/* Modernizr 2.6.2 (Custom Build) | MIT & BSD
 * Build: http://modernizr.com/download/#-inputtypes-touch-cssclasses-addtest-teststyles-prefixes-elem_details
 */
;



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

    var version = '2.6.2',

    Modernizr = {},

    enableClasses = true,

    docElement = document.documentElement,

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

    inputElem  = document.createElement('input')  ,

    smile = ':)',

    toString = {}.toString,

    prefixes = ' -webkit- -moz- -o- -ms- '.split(' '),



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

    classes = [],

    slice = classes.slice,

    featureName, 


    injectElementWithStyles = function( rule, callback, nodes, testnames ) {

      var style, ret, node, docOverflow,
          div = document.createElement('div'),
                body = document.body,
                fakeBody = body || document.createElement('body');

      if ( parseInt(nodes, 10) ) {
                      while ( nodes-- ) {
              node = document.createElement('div');
              node.id = testnames ? testnames[nodes] : mod + (nodes + 1);
              div.appendChild(node);
          }
      }

                style = ['&#173;','<style id="s', mod, '">', rule, '</style>'].join('');
      div.id = mod;
          (body ? div : fakeBody).innerHTML += style;
      fakeBody.appendChild(div);
      if ( !body ) {
                fakeBody.style.background = '';
                fakeBody.style.overflow = 'hidden';
          docOverflow = docElement.style.overflow;
          docElement.style.overflow = 'hidden';
          docElement.appendChild(fakeBody);
      }

      ret = callback(div, rule);
        if ( !body ) {
          fakeBody.parentNode.removeChild(fakeBody);
          docElement.style.overflow = docOverflow;
      } else {
          div.parentNode.removeChild(div);
      }

      return !!ret;

    },
    _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 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;
    }
    tests['touch'] = function() {
        var bool;

        if(('ontouchstart' in window) || window.DocumentTouch && document instanceof DocumentTouch) {
          bool = true;
        } else {
          injectElementWithStyles(['@media (',prefixes.join('touch-enabled),('),mod,')','{#modernizr{top:9px;position:absolute}}'].join(''), function( node ) {
            bool = node.offsetTop === 9;
          });
        }

        return bool;
    };
    function webforms() {
                            Modernizr['inputtypes'] = (function(props) {

            for ( var i = 0, bool, inputElemType, defaultView, len = props.length; i < len; i++ ) {

                inputElem.setAttribute('type', inputElemType = props[i]);
                bool = inputElem.type !== 'text';

                                                    if ( bool ) {

                    inputElem.value         = smile;
                    inputElem.style.cssText = 'position:absolute;visibility:hidden;';

                    if ( /^range$/.test(inputElemType) && inputElem.style.WebkitAppearance !== undefined ) {

                      docElement.appendChild(inputElem);
                      defaultView = document.defaultView;

                                        bool =  defaultView.getComputedStyle &&
                              defaultView.getComputedStyle(inputElem, null).WebkitAppearance !== 'textfield' &&
                                                                                  (inputElem.offsetHeight !== 0);

                      docElement.removeChild(inputElem);

                    } else if ( /^(search|tel)$/.test(inputElemType) ){
                                                                                    } else if ( /^(url|email)$/.test(inputElemType) ) {
                                        bool = inputElem.checkValidity && inputElem.checkValidity() === false;

                    } else {
                                        bool = inputElem.value != smile;
                    }
                }

                inputs[ props[i] ] = !!bool;
            }
            return inputs;
        })('search tel url email datetime date month week time datetime-local number range color'.split(' '));
        }
    for ( var feature in tests ) {
        if ( hasOwnProp(tests, feature) ) {
                                    featureName  = feature.toLowerCase();
            Modernizr[featureName] = tests[feature]();

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

    Modernizr.input || webforms();


     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._prefixes     = prefixes;

    Modernizr.testStyles    = injectElementWithStyles;    docElement.className = docElement.className.replace(/(^|\s)no-js(\s|$)/, '$1$2') +

                                                    (enableClasses ? ' js ' + classes.join(' ') : '');

    return Modernizr;

})(this, this.document);
// By @mathias, based on http://mths.be/axh
Modernizr.addTest('details', function() {
    var doc = document,
        el = doc.createElement('details'),
        fake,
        root,
        diff;
    if (!('open' in el)) { // return early if possible; thanks @aFarkas!
        return false;
    }
    root = doc.body || (function() {
        var de = doc.documentElement;
        fake = true;
        return de.insertBefore(doc.createElement('body'), de.firstElementChild || de.firstChild);
    }());
    el.innerHTML = '<summary>a</summary>b';
    el.style.display = 'block';
    root.appendChild(el);
    diff = el.offsetHeight;
    el.open = true;
    diff = diff != el.offsetHeight;
    root.removeChild(el);
    fake && root.parentNode.removeChild(root);
    return diff;
});;