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cms/drupal/profiles/drustack/libraries/modernizr/modernizr.js

changeset 541

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+:e756a8c72c3d
+/*!
+* Modernizr v2.8.3
+* www.modernizr.com
+*
+* Copyright (c) Faruk Ates, Paul Irish, Alex Sexton
+* Available under the BSD and MIT licenses: www.modernizr.com/license/
+*/
+/*
+* Modernizr tests which native CSS3 and HTML5 features are available in
+* the current UA and makes the results available to you in two ways:
+* as properties on a global Modernizr object, and as classes on the
+* <html> element. This information allows you to progressively enhance
+* your pages with a granular level of control over the experience.
+*
+* Modernizr has an optional (not included) conditional resource loader
+* called Modernizr.load(), based on Yepnope.js (yepnopejs.com).
+* To get a build that includes Modernizr.load(), as well as choosing
+* which tests to include, go to www.modernizr.com/download/
+*
+* Authors        Faruk Ates, Paul Irish, Alex Sexton
+* Contributors   Ryan Seddon, Ben Alman
+*/
+window.Modernizr = (function( window, document, undefined ) {
+var version = '2.8.3',
+Modernizr = {},
+/*>>cssclasses*/
+// option for enabling the HTML classes to be added
+enableClasses = true,
+/*>>cssclasses*/
+docElement = document.documentElement,
+/**
+* Create our "modernizr" element that we do most feature tests on.
+*/
+mod = 'modernizr',
+modElem = document.createElement(mod),
+mStyle = modElem.style,
+/**
+* Create the input element for various Web Forms feature tests.
+*/
+inputElem /*>>inputelem*/ = document.createElement('input') /*>>inputelem*/ ,
+/*>>smile*/
+smile = ':)',
+/*>>smile*/
+toString = {}.toString,
+// TODO :: make the prefixes more granular
+/*>>prefixes*/
+// List of property values to set for css tests. See ticket #21
+prefixes = ' -webkit- -moz- -o- -ms- '.split(' '),
+/*>>prefixes*/
+/*>>domprefixes*/
+// Following spec is to expose vendor-specific style properties as:
+//   elem.style.WebkitBorderRadius
+// and the following would be incorrect:
+//   elem.style.webkitBorderRadius
+// Webkit ghosts their properties in lowercase but Opera & Moz do not.
+// Microsoft uses a lowercase `ms` instead of the correct `Ms` in IE8+
+//   erik.eae.net/archives/2008/03/10/21.48.10/
+// More here: github.com/Modernizr/Modernizr/issues/issue/21
+omPrefixes = 'Webkit Moz O ms',
+cssomPrefixes = omPrefixes.split(' '),
+domPrefixes = omPrefixes.toLowerCase().split(' '),
+/*>>domprefixes*/
+/*>>ns*/
+ns = {'svg': 'http://www.w3.org/2000/svg'},
+/*>>ns*/
+tests = {},
+inputs = {},
+attrs = {},
+classes = [],
+slice = classes.slice,
+featureName, // used in testing loop
+/*>>teststyles*/
+// Inject element with style element and some CSS rules
+injectElementWithStyles = function( rule, callback, nodes, testnames ) {
+var style, ret, node, docOverflow,
+div = document.createElement('div'),
+// After page load injecting a fake body doesn't work so check if body exists
+body = document.body,
+// IE6 and 7 won't return offsetWidth or offsetHeight unless it's in the body element, so we fake it.
+fakeBody = body || document.createElement('body');
+if ( parseInt(nodes, 10) ) {
+// In order not to give false positives we create a node for each test
+// This also allows the method to scale for unspecified uses
+while ( nodes-- ) {
+node = document.createElement('div');
+node.id = testnames ? testnames[nodes] : mod + (nodes + 1);
+div.appendChild(node);
+}
+}
+// <style> elements in IE6-9 are considered 'NoScope' elements and therefore will be removed
+// when injected with innerHTML. To get around this you need to prepend the 'NoScope' element
+// with a 'scoped' element, in our case the soft-hyphen entity as it won't mess with our measurements.
+// msdn.microsoft.com/en-us/library/ms533897%28VS.85%29.aspx
+// Documents served as xml will throw if using &shy; so use xml friendly encoded version. See issue #277
+style = ['&#173;','<style id="s', mod, '">', rule, '</style>'].join('');
+div.id = mod;
+// IE6 will false positive on some tests due to the style element inside the test div somehow interfering offsetHeight, so insert it into body or fakebody.
+// Opera will act all quirky when injecting elements in documentElement when page is served as xml, needs fakebody too. #270
+(body ? div : fakeBody).innerHTML += style;
+fakeBody.appendChild(div);
+if ( !body ) {
+//avoid crashing IE8, if background image is used
+fakeBody.style.background = '';
+//Safari 5.13/5.1.4 OSX stops loading if ::-webkit-scrollbar is used and scrollbars are visible
+fakeBody.style.overflow = 'hidden';
+docOverflow = docElement.style.overflow;
+docElement.style.overflow = 'hidden';
+docElement.appendChild(fakeBody);
+}
+ret = callback(div, rule);
+// If this is done after page load we don't want to remove the body so check if body exists
+if ( !body ) {
+fakeBody.parentNode.removeChild(fakeBody);
+docElement.style.overflow = docOverflow;
+} else {
+div.parentNode.removeChild(div);
+}
+return !!ret;
+},
+/*>>teststyles*/
+/*>>mq*/
+// adapted from matchMedia polyfill
+// by Scott Jehl and Paul Irish
+// gist.github.com/786768
+testMediaQuery = function( mq ) {
+var matchMedia = window.matchMedia || window.msMatchMedia;
+if ( matchMedia ) {
+return matchMedia(mq) && matchMedia(mq).matches || false;
+}
+var bool;
+injectElementWithStyles('@media ' + mq + ' { #' + mod + ' { position: absolute; } }', function( node ) {
+bool = (window.getComputedStyle ?
+getComputedStyle(node, null) :
+node.currentStyle)['position'] == 'absolute';
+});
+return bool;
+},
+/*>>mq*/
+/*>>hasevent*/
+//
+// isEventSupported determines if a given element supports the given event
+// kangax.github.com/iseventsupported/
+//
+// The following results are known incorrects:
+//   Modernizr.hasEvent("webkitTransitionEnd", elem) // false negative
+//   Modernizr.hasEvent("textInput") // in Webkit. github.com/Modernizr/Modernizr/issues/333
+//   ...
+isEventSupported = (function() {
+var TAGNAMES = {
+'select': 'input', 'change': 'input',
+'submit': 'form', 'reset': 'form',
+'error': 'img', 'load': 'img', 'abort': 'img'
+};
+function isEventSupported( eventName, element ) {
+element = element || document.createElement(TAGNAMES[eventName] || 'div');
+eventName = 'on' + eventName;
+// When using `setAttribute`, IE skips "unload", WebKit skips "unload" and "resize", whereas `in` "catches" those
+var isSupported = eventName in element;
+if ( !isSupported ) {
+// If it has no `setAttribute` (i.e. doesn't implement Node interface), try generic element
+if ( !element.setAttribute ) {
+element = document.createElement('div');
+}
+if ( element.setAttribute && element.removeAttribute ) {
+element.setAttribute(eventName, '');
+isSupported = is(element[eventName], 'function');
+// If property was created, "remove it" (by setting value to `undefined`)
+if ( !is(element[eventName], 'undefined') ) {
+element[eventName] = undefined;
+}
+element.removeAttribute(eventName);
+}
+}
+element = null;
+return isSupported;
+}
+return isEventSupported;
+})(),
+/*>>hasevent*/
+// TODO :: Add flag for hasownprop ? didn't last time
+// hasOwnProperty shim by kangax needed for Safari 2.0 support
+_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) { /* yes, this can give false positives/negatives, but most of the time we don't care about those */
+return ((property in object) && is(object.constructor.prototype[property], 'undefined'));
+};
+}
+// Adapted from ES5-shim https://github.com/kriskowal/es5-shim/blob/master/es5-shim.js
+// es5.github.com/#x15.3.4.5
+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;
+};
+}
+/**
+* setCss applies given styles to the Modernizr DOM node.
+*/
+function setCss( str ) {
+mStyle.cssText = str;
+}
+/**
+* setCssAll extrapolates all vendor-specific css strings.
+*/
+function setCssAll( str1, str2 ) {
+return setCss(prefixes.join(str1 + ';') + ( str2 || '' ));
+}
+/**
+* is returns a boolean for if typeof obj is exactly type.
+*/
+function is( obj, type ) {
+return typeof obj === type;
+}
+/**
+* contains returns a boolean for if substr is found within str.
+*/
+function contains( str, substr ) {
+return !!~('' + str).indexOf(substr);
+}
+/*>>testprop*/
+// testProps is a generic CSS / DOM property test.
+// In testing support for a given CSS property, it's legit to test:
+//    `elem.style[styleName] !== undefined`
+// If the property is supported it will return an empty string,
+// if unsupported it will return undefined.
+// We'll take advantage of this quick test and skip setting a style
+// on our modernizr element, but instead just testing undefined vs
+// empty string.
+// Because the testing of the CSS property names (with "-", as
+// opposed to the camelCase DOM properties) is non-portable and
+// non-standard but works in WebKit and IE (but not Gecko or Opera),
+// we explicitly reject properties with dashes so that authors
+// developing in WebKit or IE first don't end up with
+// browser-specific content by accident.
+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;
+}
+/*>>testprop*/
+// TODO :: add testDOMProps
+/**
+* testDOMProps is a generic DOM property test; if a browser supports
+*   a certain property, it won't return undefined for it.
+*/
+function testDOMProps( props, obj, elem ) {
+for ( var i in props ) {
+var item = obj[props[i]];
+if ( item !== undefined) {
+// return the property name as a string
+if (elem === false) return props[i];
+// let's bind a function
+if (is(item, 'function')){
+// default to autobind unless override
+return item.bind(elem || obj);
+}
+// return the unbound function or obj or value
+return item;
+}
+}
+return false;
+}
+/*>>testallprops*/
+/**
+* testPropsAll tests a list of DOM properties we want to check against.
+*   We specify literally ALL possible (known and/or likely) properties on
+*   the element including the non-vendor prefixed one, for forward-
+*   compatibility.
+*/
+function testPropsAll( prop, prefixed, elem ) {
+var ucProp  = prop.charAt(0).toUpperCase() + prop.slice(1),
+props   = (prop + ' ' + cssomPrefixes.join(ucProp + ' ') + ucProp).split(' ');
+// did they call .prefixed('boxSizing') or are we just testing a prop?
+if(is(prefixed, "string") || is(prefixed, "undefined")) {
+return testProps(props, prefixed);
+// otherwise, they called .prefixed('requestAnimationFrame', window[, elem])
+} else {
+props = (prop + ' ' + (domPrefixes).join(ucProp + ' ') + ucProp).split(' ');
+return testDOMProps(props, prefixed, elem);
+}
+}
+/*>>testallprops*/
+/**
+* Tests
+* -----
+*/
+// The *new* flexbox
+// dev.w3.org/csswg/css3-flexbox
+tests['flexbox'] = function() {
+return testPropsAll('flexWrap');
+};
+// The *old* flexbox
+// www.w3.org/TR/2009/WD-css3-flexbox-20090723/
+tests['flexboxlegacy'] = function() {
+return testPropsAll('boxDirection');
+};
+// On the S60 and BB Storm, getContext exists, but always returns undefined
+// so we actually have to call getContext() to verify
+// github.com/Modernizr/Modernizr/issues/issue/97/
+tests['canvas'] = function() {
+var elem = document.createElement('canvas');
+return !!(elem.getContext && elem.getContext('2d'));
+};
+tests['canvastext'] = function() {
+return !!(Modernizr['canvas'] && is(document.createElement('canvas').getContext('2d').fillText, 'function'));
+};
+// webk.it/70117 is tracking a legit WebGL feature detect proposal
+// We do a soft detect which may false positive in order to avoid
+// an expensive context creation: bugzil.la/732441
+tests['webgl'] = function() {
+return !!window.WebGLRenderingContext;
+};
+/*
+* The Modernizr.touch test only indicates if the browser supports
+*    touch events, which does not necessarily reflect a touchscreen
+*    device, as evidenced by tablets running Windows 7 or, alas,
+*    the Palm Pre / WebOS (touch) phones.
+*
+* Additionally, Chrome (desktop) used to lie about its support on this,
+*    but that has since been rectified: crbug.com/36415
+*
+* We also test for Firefox 4 Multitouch Support.
+*
+* For more info, see: modernizr.github.com/Modernizr/touch.html
+*/
+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;
+};
+// geolocation is often considered a trivial feature detect...
+// Turns out, it's quite tricky to get right:
+//
+// Using !!navigator.geolocation does two things we don't want. It:
+//   1. Leaks memory in IE9: github.com/Modernizr/Modernizr/issues/513
+//   2. Disables page caching in WebKit: webk.it/43956
+//
+// Meanwhile, in Firefox < 8, an about:config setting could expose
+// a false positive that would throw an exception: bugzil.la/688158
+tests['geolocation'] = function() {
+return 'geolocation' in navigator;
+};
+tests['postmessage'] = function() {
+return !!window.postMessage;
+};
+// Chrome incognito mode used to throw an exception when using openDatabase
+// It doesn't anymore.
+tests['websqldatabase'] = function() {
+return !!window.openDatabase;
+};
+// Vendors had inconsistent prefixing with the experimental Indexed DB:
+// - Webkit's implementation is accessible through webkitIndexedDB
+// - Firefox shipped moz_indexedDB before FF4b9, but since then has been mozIndexedDB
+// For speed, we don't test the legacy (and beta-only) indexedDB
+tests['indexedDB'] = function() {
+return !!testPropsAll("indexedDB", window);
+};
+// documentMode logic from YUI to filter out IE8 Compat Mode
+//   which false positives.
+tests['hashchange'] = function() {
+return isEventSupported('hashchange', window) && (document.documentMode === undefined || document.documentMode > 7);
+};
+// Per 1.6:
+// This used to be Modernizr.historymanagement but the longer
+// name has been deprecated in favor of a shorter and property-matching one.
+// The old API is still available in 1.6, but as of 2.0 will throw a warning,
+// and in the first release thereafter disappear entirely.
+tests['history'] = function() {
+return !!(window.history && history.pushState);
+};
+tests['draganddrop'] = function() {
+var div = document.createElement('div');
+return ('draggable' in div) || ('ondragstart' in div && 'ondrop' in div);
+};
+// FF3.6 was EOL'ed on 4/24/12, but the ESR version of FF10
+// will be supported until FF19 (2/12/13), at which time, ESR becomes FF17.
+// FF10 still uses prefixes, so check for it until then.
+// for more ESR info, see: mozilla.org/en-US/firefox/organizations/faq/
+tests['websockets'] = function() {
+return 'WebSocket' in window || 'MozWebSocket' in window;
+};
+// css-tricks.com/rgba-browser-support/
+tests['rgba'] = function() {
+// Set an rgba() color and check the returned value
+setCss('background-color:rgba(150,255,150,.5)');
+return contains(mStyle.backgroundColor, 'rgba');
+};
+tests['hsla'] = function() {
+// Same as rgba(), in fact, browsers re-map hsla() to rgba() internally,
+//   except IE9 who retains it as hsla
+setCss('background-color:hsla(120,40%,100%,.5)');
+return contains(mStyle.backgroundColor, 'rgba') || contains(mStyle.backgroundColor, 'hsla');
+};
+tests['multiplebgs'] = function() {
+// Setting multiple images AND a color on the background shorthand property
+//  and then querying the style.background property value for the number of
+//  occurrences of "url(" is a reliable method for detecting ACTUAL support for this!
+setCss('background:url(https://),url(https://),red url(https://)');
+// If the UA supports multiple backgrounds, there should be three occurrences
+//   of the string "url(" in the return value for elemStyle.background
+return (/(url\s*\(.*?){3}/).test(mStyle.background);
+};
+// this will false positive in Opera Mini
+//   github.com/Modernizr/Modernizr/issues/396
+tests['backgroundsize'] = function() {
+return testPropsAll('backgroundSize');
+};
+tests['borderimage'] = function() {
+return testPropsAll('borderImage');
+};
+// Super comprehensive table about all the unique implementations of
+// border-radius: muddledramblings.com/table-of-css3-border-radius-compliance
+tests['borderradius'] = function() {
+return testPropsAll('borderRadius');
+};
+// WebOS unfortunately false positives on this test.
+tests['boxshadow'] = function() {
+return testPropsAll('boxShadow');
+};
+// FF3.0 will false positive on this test
+tests['textshadow'] = function() {
+return document.createElement('div').style.textShadow === '';
+};
+tests['opacity'] = function() {
+// Browsers that actually have CSS Opacity implemented have done so
+//  according to spec, which means their return values are within the
+//  range of [0.0,1.0] - including the leading zero.
+setCssAll('opacity:.55');
+// The non-literal . in this regex is intentional:
+//   German Chrome returns this value as 0,55
+// github.com/Modernizr/Modernizr/issues/#issue/59/comment/516632
+return (/^0.55$/).test(mStyle.opacity);
+};
+// Note, Android < 4 will pass this test, but can only animate
+//   a single property at a time
+//   goo.gl/v3V4Gp
+tests['cssanimations'] = function() {
+return testPropsAll('animationName');
+};
+tests['csscolumns'] = function() {
+return testPropsAll('columnCount');
+};
+tests['cssgradients'] = function() {
+/**
+* For CSS Gradients syntax, please see:
+* webkit.org/blog/175/introducing-css-gradients/
+* developer.mozilla.org/en/CSS/-moz-linear-gradient
+* developer.mozilla.org/en/CSS/-moz-radial-gradient
+* dev.w3.org/csswg/css3-images/#gradients-
+*/
+var str1 = 'background-image:',
+str2 = 'gradient(linear,left top,right bottom,from(#9f9),to(white));',
+str3 = 'linear-gradient(left top,#9f9, white);';
+setCss(
+// legacy webkit syntax (FIXME: remove when syntax not in use anymore)
+(str1 + '-webkit- '.split(' ').join(str2 + str1) +
+// standard syntax             // trailing 'background-image:'
+prefixes.join(str3 + str1)).slice(0, -str1.length)
+);
+return contains(mStyle.backgroundImage, 'gradient');
+};
+tests['cssreflections'] = function() {
+return testPropsAll('boxReflect');
+};
+tests['csstransforms'] = function() {
+return !!testPropsAll('transform');
+};
+tests['csstransforms3d'] = function() {
+var ret = !!testPropsAll('perspective');
+// Webkit's 3D transforms are passed off to the browser's own graphics renderer.
+//   It works fine in Safari on Leopard and Snow Leopard, but not in Chrome in
+//   some conditions. As a result, Webkit typically recognizes the syntax but
+//   will sometimes throw a false positive, thus we must do a more thorough check:
+if ( ret && 'webkitPerspective' in docElement.style ) {
+// Webkit allows this media query to succeed only if the feature is enabled.
+// `@media (transform-3d),(-webkit-transform-3d){ ... }`
+injectElementWithStyles('@media (transform-3d),(-webkit-transform-3d){#modernizr{left:9px;position:absolute;height:3px;}}', function( node, rule ) {
+ret = node.offsetLeft === 9 && node.offsetHeight === 3;
+});
+}
+return ret;
+};
+tests['csstransitions'] = function() {
+return testPropsAll('transition');
+};
+/*>>fontface*/
+// @font-face detection routine by Diego Perini
+// javascript.nwbox.com/CSSSupport/
+// false positives:
+//   WebOS github.com/Modernizr/Modernizr/issues/342
+//   WP7   github.com/Modernizr/Modernizr/issues/538
+tests['fontface'] = function() {
+var bool;
+injectElementWithStyles('@font-face {font-family:"font";src:url("https://")}', function( node, rule ) {
+var style = document.getElementById('smodernizr'),
+sheet = style.sheet || style.styleSheet,
+cssText = sheet ? (sheet.cssRules && sheet.cssRules[0] ? sheet.cssRules[0].cssText : sheet.cssText || '') : '';
+bool = /src/i.test(cssText) && cssText.indexOf(rule.split(' ')[0]) === 0;
+});
+return bool;
+};
+/*>>fontface*/
+// CSS generated content detection
+tests['generatedcontent'] = function() {
+var bool;
+injectElementWithStyles(['#',mod,'{font:0/0 a}#',mod,':after{content:"',smile,'";visibility:hidden;font:3px/1 a}'].join(''), function( node ) {
+bool = node.offsetHeight >= 3;
+});
+return bool;
+};
+// These tests evaluate support of the video/audio elements, as well as
+// testing what types of content they support.
+//
+// We're using the Boolean constructor here, so that we can extend the value
+// e.g.  Modernizr.video     // true
+//       Modernizr.video.ogg // 'probably'
+//
+// Codec values from : github.com/NielsLeenheer/html5test/blob/9106a8/index.html#L845
+//                     thx to NielsLeenheer and zcorpan
+// Note: in some older browsers, "no" was a return value instead of empty string.
+//   It was live in FF3.5.0 and 3.5.1, but fixed in 3.5.2
+//   It was also live in Safari 4.0.0 - 4.0.4, but fixed in 4.0.5
+tests['video'] = function() {
+var elem = document.createElement('video'),
+bool = false;
+// IE9 Running on Windows Server SKU can cause an exception to be thrown, bug #224
+try {
+if ( bool = !!elem.canPlayType ) {
+bool      = new Boolean(bool);
+bool.ogg  = elem.canPlayType('video/ogg; codecs="theora"')      .replace(/^no$/,'');
+// Without QuickTime, this value will be `undefined`. github.com/Modernizr/Modernizr/issues/546
+bool.h264 = elem.canPlayType('video/mp4; codecs="avc1.42E01E"') .replace(/^no$/,'');
+bool.webm = elem.canPlayType('video/webm; codecs="vp8, vorbis"').replace(/^no$/,'');
+}
+} catch(e) { }
+return bool;
+};
+tests['audio'] = function() {
+var elem = document.createElement('audio'),
+bool = false;
+try {
+if ( bool = !!elem.canPlayType ) {
+bool      = new Boolean(bool);
+bool.ogg  = elem.canPlayType('audio/ogg; codecs="vorbis"').replace(/^no$/,'');
+bool.mp3  = elem.canPlayType('audio/mpeg;')               .replace(/^no$/,'');
+// Mimetypes accepted:
+//   developer.mozilla.org/En/Media_formats_supported_by_the_audio_and_video_elements
+//   bit.ly/iphoneoscodecs
+bool.wav  = elem.canPlayType('audio/wav; codecs="1"')     .replace(/^no$/,'');
+bool.m4a  = ( elem.canPlayType('audio/x-m4a;')            ||
+elem.canPlayType('audio/aac;'))             .replace(/^no$/,'');
+}
+} catch(e) { }
+return bool;
+};
+// In FF4, if disabled, window.localStorage should === null.
+// Normally, we could not test that directly and need to do a
+//   `('localStorage' in window) && ` test first because otherwise Firefox will
+//   throw bugzil.la/365772 if cookies are disabled
+// Also in iOS5 Private Browsing mode, attempting to use localStorage.setItem
+// will throw the exception:
+//   QUOTA_EXCEEDED_ERRROR DOM Exception 22.
+// Peculiarly, getItem and removeItem calls do not throw.
+// Because we are forced to try/catch this, we'll go aggressive.
+// Just FWIW: IE8 Compat mode supports these features completely:
+//   www.quirksmode.org/dom/html5.html
+// But IE8 doesn't support either with local files
+tests['localstorage'] = function() {
+try {
+localStorage.setItem(mod, mod);
+localStorage.removeItem(mod);
+return true;
+} catch(e) {
+return false;
+}
+};
+tests['sessionstorage'] = function() {
+try {
+sessionStorage.setItem(mod, mod);
+sessionStorage.removeItem(mod);
+return true;
+} catch(e) {
+return false;
+}
+};
+tests['webworkers'] = function() {
+return !!window.Worker;
+};
+tests['applicationcache'] = function() {
+return !!window.applicationCache;
+};
+// Thanks to Erik Dahlstrom
+tests['svg'] = function() {
+return !!document.createElementNS && !!document.createElementNS(ns.svg, 'svg').createSVGRect;
+};
+// specifically for SVG inline in HTML, not within XHTML
+// test page: paulirish.com/demo/inline-svg
+tests['inlinesvg'] = function() {
+var div = document.createElement('div');
+div.innerHTML = '<svg/>';
+return (div.firstChild && div.firstChild.namespaceURI) == ns.svg;
+};
+// SVG SMIL animation
+tests['smil'] = function() {
+return !!document.createElementNS && /SVGAnimate/.test(toString.call(document.createElementNS(ns.svg, 'animate')));
+};
+// This test is only for clip paths in SVG proper, not clip paths on HTML content
+// demo: srufaculty.sru.edu/david.dailey/svg/newstuff/clipPath4.svg
+// However read the comments to dig into applying SVG clippaths to HTML content here:
+//   github.com/Modernizr/Modernizr/issues/213#issuecomment-1149491
+tests['svgclippaths'] = function() {
+return !!document.createElementNS && /SVGClipPath/.test(toString.call(document.createElementNS(ns.svg, 'clipPath')));
+};
+/*>>webforms*/
+// input features and input types go directly onto the ret object, bypassing the tests loop.
+// Hold this guy to execute in a moment.
+function webforms() {
+/*>>input*/
+// Run through HTML5's new input attributes to see if the UA understands any.
+// We're using f which is the <input> element created early on
+// Mike Taylr has created a comprehensive resource for testing these attributes
+//   when applied to all input types:
+//   miketaylr.com/code/input-type-attr.html
+// spec: www.whatwg.org/specs/web-apps/current-work/multipage/the-input-element.html#input-type-attr-summary
+// Only input placeholder is tested while textarea's placeholder is not.
+// Currently Safari 4 and Opera 11 have support only for the input placeholder
+// Both tests are available in feature-detects/forms-placeholder.js
+Modernizr['input'] = (function( props ) {
+for ( var i = 0, len = props.length; i < len; i++ ) {
+attrs[ props[i] ] = !!(props[i] in inputElem);
+}
+if (attrs.list){
+// safari false positive's on datalist: webk.it/74252
+// see also github.com/Modernizr/Modernizr/issues/146
+attrs.list = !!(document.createElement('datalist') && window.HTMLDataListElement);
+}
+return attrs;
+})('autocomplete autofocus list placeholder max min multiple pattern required step'.split(' '));
+/*>>input*/
+/*>>inputtypes*/
+// Run through HTML5's new input types to see if the UA understands any.
+//   This is put behind the tests runloop because it doesn't return a
+//   true/false like all the other tests; instead, it returns an object
+//   containing each input type with its corresponding true/false value
+// Big thanks to @miketaylr for the html5 forms expertise. miketaylr.com/
+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';
+// We first check to see if the type we give it sticks..
+// If the type does, we feed it a textual value, which shouldn't be valid.
+// If the value doesn't stick, we know there's input sanitization which infers a custom UI
+if ( bool ) {
+inputElem.value         = smile;
+inputElem.style.cssText = 'position:absolute;visibility:hidden;';
+if ( /^range$/.test(inputElemType) && inputElem.style.WebkitAppearance !== undefined ) {
+docElement.appendChild(inputElem);
+defaultView = document.defaultView;
+// Safari 2-4 allows the smiley as a value, despite making a slider
+bool =  defaultView.getComputedStyle &&
+defaultView.getComputedStyle(inputElem, null).WebkitAppearance !== 'textfield' &&
+// Mobile android web browser has false positive, so must
+// check the height to see if the widget is actually there.
+(inputElem.offsetHeight !== 0);
+docElement.removeChild(inputElem);
+} else if ( /^(search|tel)$/.test(inputElemType) ){
+// Spec doesn't define any special parsing or detectable UI
+//   behaviors so we pass these through as true
+// Interestingly, opera fails the earlier test, so it doesn't
+//  even make it here.
+} else if ( /^(url|email)$/.test(inputElemType) ) {
+// Real url and email support comes with prebaked validation.
+bool = inputElem.checkValidity && inputElem.checkValidity() === false;
+} else {
+// If the upgraded input compontent rejects the :) text, we got a winner
+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(' '));
+/*>>inputtypes*/
+}
+/*>>webforms*/
+// End of test definitions
+// -----------------------
+// Run through all tests and detect their support in the current UA.
+// todo: hypothetically we could be doing an array of tests and use a basic loop here.
+for ( var feature in tests ) {
+if ( hasOwnProp(tests, feature) ) {
+// run the test, throw the return value into the Modernizr,
+//   then based on that boolean, define an appropriate className
+//   and push it into an array of classes we'll join later.
+featureName  = feature.toLowerCase();
+Modernizr[featureName] = tests[feature]();
+classes.push((Modernizr[featureName] ? '' : 'no-') + featureName);
+}
+}
+/*>>webforms*/
+// input tests need to run.
+Modernizr.input || webforms();
+/*>>webforms*/
+/**
+* addTest allows the user to define their own feature tests
+* the result will be added onto the Modernizr object,
+* as well as an appropriate className set on the html element
+*
+* @param feature - String naming the feature
+* @param test - Function returning true if feature is supported, false if not
+*/
+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 ) {
+// we're going to quit if you're trying to overwrite an existing test
+// if we were to allow it, we'd do this:
+//   var re = new RegExp("\\b(no-)?" + feature + "\\b");
+//   docElement.className = docElement.className.replace( re, '' );
+// but, no rly, stuff 'em.
+return Modernizr;
+}
+test = typeof test == 'function' ? test() : test;
+if (typeof enableClasses !== "undefined" && enableClasses) {
+docElement.className += ' ' + (test ? '' : 'no-') + feature;
+}
+Modernizr[feature] = test;
+}
+return Modernizr; // allow chaining.
+};
+// Reset modElem.cssText to nothing to reduce memory footprint.
+setCss('');
+modElem = inputElem = null;
+/*>>shiv*/
+/**
+* @preserve HTML5 Shiv prev3.7.1 | @afarkas @jdalton @jon_neal @rem | MIT/GPL2 Licensed
+*/
+;(function(window, document) {
+/*jshint evil:true */
+/** version */
+var version = '3.7.0';
+/** Preset options */
+var options = window.html5 || {};
+/** Used to skip problem elements */
+var reSkip = /^<|^(?:button|map|select|textarea|object|iframe|option|optgroup)$/i;
+/** Not all elements can be cloned in IE **/
+var saveClones = /^(?:a|b|code|div|fieldset|h1|h2|h3|h4|h5|h6|i|label|li|ol|p|q|span|strong|style|table|tbody|td|th|tr|ul)$/i;
+/** Detect whether the browser supports default html5 styles */
+var supportsHtml5Styles;
+/** Name of the expando, to work with multiple documents or to re-shiv one document */
+var expando = '_html5shiv';
+/** The id for the the documents expando */
+var expanID = 0;
+/** Cached data for each document */
+var expandoData = {};
+/** Detect whether the browser supports unknown elements */
+var supportsUnknownElements;
+(function() {
+try {
+var a = document.createElement('a');
+a.innerHTML = '<xyz></xyz>';
+//if the hidden property is implemented we can assume, that the browser supports basic HTML5 Styles
+supportsHtml5Styles = ('hidden' in a);
+supportsUnknownElements = a.childNodes.length == 1 || (function() {
+// assign a false positive if unable to shiv
+(document.createElement)('a');
+var frag = document.createDocumentFragment();
+return (
+typeof frag.cloneNode == 'undefined' ||
+typeof frag.createDocumentFragment == 'undefined' ||
+typeof frag.createElement == 'undefined'
+);
+}());
+} catch(e) {
+// assign a false positive if detection fails => unable to shiv
+supportsHtml5Styles = true;
+supportsUnknownElements = true;
+}
+}());
+/*--------------------------------------------------------------------------*/
+/**
+* Creates a style sheet with the given CSS text and adds it to the document.
+* @private
+* @param {Document} ownerDocument The document.
+* @param {String} cssText The CSS text.
+* @returns {StyleSheet} The style element.
+*/
+function addStyleSheet(ownerDocument, cssText) {
+var p = ownerDocument.createElement('p'),
+parent = ownerDocument.getElementsByTagName('head')[0] || ownerDocument.documentElement;
+p.innerHTML = 'x<style>' + cssText + '</style>';
+return parent.insertBefore(p.lastChild, parent.firstChild);
+}
+/**
+* Returns the value of `html5.elements` as an array.
+* @private
+* @returns {Array} An array of shived element node names.
+*/
+function getElements() {
+var elements = html5.elements;
+return typeof elements == 'string' ? elements.split(' ') : elements;
+}
+/**
+* Returns the data associated to the given document
+* @private
+* @param {Document} ownerDocument The document.
+* @returns {Object} An object of data.
+*/
+function getExpandoData(ownerDocument) {
+var data = expandoData[ownerDocument[expando]];
+if (!data) {
+data = {};
+expanID++;
+ownerDocument[expando] = expanID;
+expandoData[expanID] = data;
+}
+return data;
+}
+/**
+* returns a shived element for the given nodeName and document
+* @memberOf html5
+* @param {String} nodeName name of the element
+* @param {Document} ownerDocument The context document.
+* @returns {Object} The shived element.
+*/
+function createElement(nodeName, ownerDocument, data){
+if (!ownerDocument) {
+ownerDocument = document;
+}
+if(supportsUnknownElements){
+return ownerDocument.createElement(nodeName);
+}
+if (!data) {
+data = getExpandoData(ownerDocument);
+}
+var node;
+if (data.cache[nodeName]) {
+node = data.cache[nodeName].cloneNode();
+} else if (saveClones.test(nodeName)) {
+node = (data.cache[nodeName] = data.createElem(nodeName)).cloneNode();
+} else {
+node = data.createElem(nodeName);
+}
+// Avoid adding some elements to fragments in IE < 9 because
+// * Attributes like `name` or `type` cannot be set/changed once an element
+//   is inserted into a document/fragment
+// * Link elements with `src` attributes that are inaccessible, as with
+//   a 403 response, will cause the tab/window to crash
+// * Script elements appended to fragments will execute when their `src`
+//   or `text` property is set
+return node.canHaveChildren && !reSkip.test(nodeName) && !node.tagUrn ? data.frag.appendChild(node) : node;
+}
+/**
+* returns a shived DocumentFragment for the given document
+* @memberOf html5
+* @param {Document} ownerDocument The context document.
+* @returns {Object} The shived DocumentFragment.
+*/
+function createDocumentFragment(ownerDocument, data){
+if (!ownerDocument) {
+ownerDocument = document;
+}
+if(supportsUnknownElements){
+return ownerDocument.createDocumentFragment();
+}
+data = data || getExpandoData(ownerDocument);
+var clone = data.frag.cloneNode(),
+i = 0,
+elems = getElements(),
+l = elems.length;
+for(;i<l;i++){
+clone.createElement(elems[i]);
+}
+return clone;
+}
+/**
+* Shivs the `createElement` and `createDocumentFragment` methods of the document.
+* @private
+* @param {Document|DocumentFragment} ownerDocument The document.
+* @param {Object} data of the document.
+*/
+function shivMethods(ownerDocument, data) {
+if (!data.cache) {
+data.cache = {};
+data.createElem = ownerDocument.createElement;
+data.createFrag = ownerDocument.createDocumentFragment;
+data.frag = data.createFrag();
+}
+ownerDocument.createElement = function(nodeName) {
+//abort shiv
+if (!html5.shivMethods) {
+return data.createElem(nodeName);
+}
+return createElement(nodeName, ownerDocument, data);
+};
+ownerDocument.createDocumentFragment = Function('h,f', 'return function(){' +
+'var n=f.cloneNode(),c=n.createElement;' +
+'h.shivMethods&&(' +
+// unroll the `createElement` calls
+getElements().join().replace(/[\w\-]+/g, function(nodeName) {
+data.createElem(nodeName);
+data.frag.createElement(nodeName);
+return 'c("' + nodeName + '")';
+}) +
+');return n}'
+)(html5, data.frag);
+}
+/*--------------------------------------------------------------------------*/
+/**
+* Shivs the given document.
+* @memberOf html5
+* @param {Document} ownerDocument The document to shiv.
+* @returns {Document} The shived document.
+*/
+function shivDocument(ownerDocument) {
+if (!ownerDocument) {
+ownerDocument = document;
+}
+var data = getExpandoData(ownerDocument);
+if (html5.shivCSS && !supportsHtml5Styles && !data.hasCSS) {
+data.hasCSS = !!addStyleSheet(ownerDocument,
+// corrects block display not defined in IE6/7/8/9
+'article,aside,dialog,figcaption,figure,footer,header,hgroup,main,nav,section{display:block}' +
+// adds styling not present in IE6/7/8/9
+'mark{background:#FF0;color:#000}' +
+// hides non-rendered elements
+'template{display:none}'
+);
+}
+if (!supportsUnknownElements) {
+shivMethods(ownerDocument, data);
+}
+return ownerDocument;
+}
+/*--------------------------------------------------------------------------*/
+/**
+* The `html5` object is exposed so that more elements can be shived and
+* existing shiving can be detected on iframes.
+* @type Object
+* @example
+*
+* // options can be changed before the script is included
+* html5 = { 'elements': 'mark section', 'shivCSS': false, 'shivMethods': false };
+*/
+var html5 = {
+/**
+* An array or space separated string of node names of the elements to shiv.
+* @memberOf html5
+* @type Array|String
+*/
+'elements': options.elements || 'abbr article aside audio bdi canvas data datalist details dialog figcaption figure footer header hgroup main mark meter nav output progress section summary template time video',
+/**
+* current version of html5shiv
+*/
+'version': version,
+/**
+* A flag to indicate that the HTML5 style sheet should be inserted.
+* @memberOf html5
+* @type Boolean
+*/
+'shivCSS': (options.shivCSS !== false),
+/**
+* Is equal to true if a browser supports creating unknown/HTML5 elements
+* @memberOf html5
+* @type boolean
+*/
+'supportsUnknownElements': supportsUnknownElements,
+/**
+* A flag to indicate that the document's `createElement` and `createDocumentFragment`
+* methods should be overwritten.
+* @memberOf html5
+* @type Boolean
+*/
+'shivMethods': (options.shivMethods !== false),
+/**
+* A string to describe the type of `html5` object ("default" or "default print").
+* @memberOf html5
+* @type String
+*/
+'type': 'default',
+// shivs the document according to the specified `html5` object options
+'shivDocument': shivDocument,
+//creates a shived element
+createElement: createElement,
+//creates a shived documentFragment
+createDocumentFragment: createDocumentFragment
+};
+/*--------------------------------------------------------------------------*/
+// expose html5
+window.html5 = html5;
+// shiv the document
+shivDocument(document);
+}(this, document));
+/*>>shiv*/
+// Assign private properties to the return object with prefix
+Modernizr._version      = version;
+// expose these for the plugin API. Look in the source for how to join() them against your input
+/*>>prefixes*/
+Modernizr._prefixes     = prefixes;
+/*>>prefixes*/
+/*>>domprefixes*/
+Modernizr._domPrefixes  = domPrefixes;
+Modernizr._cssomPrefixes  = cssomPrefixes;
+/*>>domprefixes*/
+/*>>mq*/
+// Modernizr.mq tests a given media query, live against the current state of the window
+// A few important notes:
+//   * If a browser does not support media queries at all (eg. oldIE) the mq() will always return false
+//   * A max-width or orientation query will be evaluated against the current state, which may change later.
+//   * You must specify values. Eg. If you are testing support for the min-width media query use:
+//       Modernizr.mq('(min-width:0)')
+// usage:
+// Modernizr.mq('only screen and (max-width:768)')
+Modernizr.mq            = testMediaQuery;
+/*>>mq*/
+/*>>hasevent*/
+// Modernizr.hasEvent() detects support for a given event, with an optional element to test on
+// Modernizr.hasEvent('gesturestart', elem)
+Modernizr.hasEvent      = isEventSupported;
+/*>>hasevent*/
+/*>>testprop*/
+// Modernizr.testProp() investigates whether a given style property is recognized
+// Note that the property names must be provided in the camelCase variant.
+// Modernizr.testProp('pointerEvents')
+Modernizr.testProp      = function(prop){
+return testProps([prop]);
+};
+/*>>testprop*/
+/*>>testallprops*/
+// Modernizr.testAllProps() investigates whether a given style property,
+//   or any of its vendor-prefixed variants, is recognized
+// Note that the property names must be provided in the camelCase variant.
+// Modernizr.testAllProps('boxSizing')
+Modernizr.testAllProps  = testPropsAll;
+/*>>testallprops*/
+/*>>teststyles*/
+// Modernizr.testStyles() allows you to add custom styles to the document and test an element afterwards
+// Modernizr.testStyles('#modernizr { position:absolute }', function(elem, rule){ ... })
+Modernizr.testStyles    = injectElementWithStyles;
+/*>>teststyles*/
+/*>>prefixed*/
+// Modernizr.prefixed() returns the prefixed or nonprefixed property name variant of your input
+// Modernizr.prefixed('boxSizing') // 'MozBoxSizing'
+// Properties must be passed as dom-style camelcase, rather than `box-sizing` hypentated style.
+// Return values will also be the camelCase variant, if you need to translate that to hypenated style use:
+//
+//     str.replace(/([A-Z])/g, function(str,m1){ return '-' + m1.toLowerCase(); }).replace(/^ms-/,'-ms-');
+// If you're trying to ascertain which transition end event to bind to, you might do something like...
+//
+//     var transEndEventNames = {
+//       'WebkitTransition' : 'webkitTransitionEnd',
+//       'MozTransition'    : 'transitionend',
+//       'OTransition'      : 'oTransitionEnd',
+//       'msTransition'     : 'MSTransitionEnd',
+//       'transition'       : 'transitionend'
+//     },
+//     transEndEventName = transEndEventNames[ Modernizr.prefixed('transition') ];
+Modernizr.prefixed      = function(prop, obj, elem){
+if(!obj) {
+return testPropsAll(prop, 'pfx');
+} else {
+// Testing DOM property e.g. Modernizr.prefixed('requestAnimationFrame', window) // 'mozRequestAnimationFrame'
+return testPropsAll(prop, obj, elem);
+}
+};
+/*>>prefixed*/
+/*>>cssclasses*/
+// Remove "no-js" class from <html> element, if it exists:
+docElement.className = docElement.className.replace(/(^|\s)no-js(\s|$)/, '$1$2') +
+// Add the new classes to the <html> element.
+(enableClasses ? ' js ' + classes.join(' ') : '');
+/*>>cssclasses*/
+return Modernizr;
+})(this, this.document);

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