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/*! * 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 ­ so use xml friendly encoded version. See issue #277
style = ['­','<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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