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examples/feature.js: Show supported/unsupported features.

Feature detection is done via Modernizr.
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1 parent c6db035 commit da629874d3b6e8b2673e0c79a75ee723f60f8d1c @ariya committed Jun 26, 2011
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  1. +4 −0 ChangeLog
  2. +30 −0 examples/features.js
  3. +1,116 −0 examples/modernizr.js
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4 ChangeLog
@@ -4,6 +4,10 @@ Version 1.3.0
Version 1.3.0 is the next minor update. It is still in the development.
+ Examples
+
+ * Added a new example on using Modernizr to detect features.
+
2011-06-21: Version 1.2.0
Version 1.2.0 is a major update. It introduces a whole set of new API.
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30 examples/features.js
@@ -0,0 +1,30 @@
+var feature, supported = [], unsupported = [];
+
+phantom.injectJs('modernizr.js');
+console.log('Detected features (using Modernizr ' + Modernizr._version + '):');
+for (feature in Modernizr) {
+ if (Modernizr.hasOwnProperty(feature)) {
+ if (feature[0] !== '_' && typeof Modernizr[feature] !== 'function' &&
+ feature !== 'input' && feature !== 'inputtypes') {
+ if (Modernizr[feature]) {
+ supported.push(feature);
+ } else {
+ unsupported.push(feature);
+ }
+ }
+ }
+}
+
+console.log('');
+console.log('Supported:');
+supported.forEach(function (e) {
+ console.log(' ' + e);
+});
+
+console.log('');
+console.log('Not supported:');
+unsupported.forEach(function (e) {
+ console.log(' ' + e);
+});
+phantom.exit();
+
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1,116 examples/modernizr.js
@@ -0,0 +1,1116 @@
+/*!
+ * Modernizr v2.0.6
+ * http://www.modernizr.com
+ *
+ * Copyright (c) 2009-2011 Faruk Ates, Paul Irish, Alex Sexton
+ * Dual-licensed under the BSD or 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 = '2.0.6',
+
+ Modernizr = {},
+
+ // option for enabling the HTML classes to be added
+ enableClasses = true,
+
+ docElement = document.documentElement,
+ docHead = document.head || document.getElementsByTagName('head')[0],
+
+ /**
+ * 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 = document.createElement('input'),
+
+ smile = ':)',
+
+ toString = Object.prototype.toString,
+
+ // List of property values to set for css tests. See ticket #21
+ prefixes = ' -webkit- -moz- -o- -ms- -khtml- '.split(' '),
+
+ // 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 foregoes prefixes entirely <= IE8, but appears to
+ // use a lowercase `ms` instead of the correct `Ms` in IE9
+
+ // More here: http://github.com/Modernizr/Modernizr/issues/issue/21
+ domPrefixes = 'Webkit Moz O ms Khtml'.split(' '),
+
+ ns = {'svg': 'http://www.w3.org/2000/svg'},
+
+ tests = {},
+ inputs = {},
+ attrs = {},
+
+ classes = [],
+
+ featureName, // used in testing loop
+
+
+ // Inject element with style element and some CSS rules
+ injectElementWithStyles = function( rule, callback, nodes, testnames ) {
+
+ var style, ret, node,
+ div = document.createElement('div');
+
+ 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.
+ // http://msdn.microsoft.com/en-us/library/ms533897%28VS.85%29.aspx
+ style = ['&shy;', '<style>', rule, '</style>'].join('');
+ div.id = mod;
+ div.innerHTML += style;
+ docElement.appendChild(div);
+
+ ret = callback(div, rule);
+ div.parentNode.removeChild(div);
+
+ return !!ret;
+
+ },
+
+
+ // adapted from matchMedia polyfill
+ // by Scott Jehl and Paul Irish
+ // gist.github.com/786768
+ testMediaQuery = function( mq ) {
+
+ if ( window.matchMedia ) {
+ return matchMedia(mq).matches;
+ }
+
+ var bool;
+
+ injectElementWithStyles('@media ' + mq + ' { #' + mod + ' { position: absolute; } }', function( node ) {
+ bool = (window.getComputedStyle ?
+ getComputedStyle(node, null) :
+ node.currentStyle)['position'] == 'absolute';
+ });
+
+ return bool;
+
+ },
+
+
+ /**
+ * isEventSupported determines if a given element supports the given event
+ * function from http://yura.thinkweb2.com/isEventSupported/
+ */
+ 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;
+ })();
+
+ // hasOwnProperty shim by kangax needed for Safari 2.0 support
+ var _hasOwnProperty = ({}).hasOwnProperty, hasOwnProperty;
+ if ( !is(_hasOwnProperty, undefined) && !is(_hasOwnProperty.call, undefined) ) {
+ hasOwnProperty = function (object, property) {
+ return _hasOwnProperty.call(object, property);
+ };
+ }
+ else {
+ hasOwnProperty = 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));
+ };
+ }
+
+ /**
+ * 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);
+ }
+
+ /**
+ * testProps is a generic CSS / DOM property test; if a browser supports
+ * a certain property, it won't return undefined for it.
+ * A supported CSS property returns empty string when its not yet set.
+ */
+ function testProps( props, prefixed ) {
+ for ( var i in props ) {
+ if ( mStyle[ props[i] ] !== undefined ) {
+ return prefixed == 'pfx' ? props[i] : true;
+ }
+ }
+ return false;
+ }
+
+ /**
+ * 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 ) {
+
+ var ucProp = prop.charAt(0).toUpperCase() + prop.substr(1),
+ props = (prop + ' ' + domPrefixes.join(ucProp + ' ') + ucProp).split(' ');
+
+ return testProps(props, prefixed);
+ }
+
+ /**
+ * testBundle tests a list of CSS features that require element and style injection.
+ * By bundling them together we can reduce the need to touch the DOM multiple times.
+ */
+ /*>>testBundle*/
+ var testBundle = (function( styles, tests ) {
+ var style = styles.join(''),
+ len = tests.length;
+
+ injectElementWithStyles(style, function( node, rule ) {
+ var style = document.styleSheets[document.styleSheets.length - 1],
+ // IE8 will bork if you create a custom build that excludes both fontface and generatedcontent tests.
+ // So we check for cssRules and that there is a rule available
+ // More here: https://github.com/Modernizr/Modernizr/issues/288 & https://github.com/Modernizr/Modernizr/issues/293
+ cssText = style.cssRules && style.cssRules[0] ? style.cssRules[0].cssText : style.cssText || "",
+ children = node.childNodes, hash = {};
+
+ while ( len-- ) {
+ hash[children[len].id] = children[len];
+ }
+
+ /*>>touch*/ Modernizr['touch'] = ('ontouchstart' in window) || hash['touch'].offsetTop === 9; /*>>touch*/
+ /*>>csstransforms3d*/ Modernizr['csstransforms3d'] = hash['csstransforms3d'].offsetLeft === 9; /*>>csstransforms3d*/
+ /*>>generatedcontent*/Modernizr['generatedcontent'] = hash['generatedcontent'].offsetHeight >= 1; /*>>generatedcontent*/
+ /*>>fontface*/ Modernizr['fontface'] = /src/i.test(cssText) &&
+ cssText.indexOf(rule.split(' ')[0]) === 0; /*>>fontface*/
+ }, len, tests);
+
+ })([
+ // Pass in styles to be injected into document
+ /*>>fontface*/ '@font-face {font-family:"font";src:url("https://")}' /*>>fontface*/
+
+ /*>>touch*/ ,['@media (',prefixes.join('touch-enabled),('),mod,')',
+ '{#touch{top:9px;position:absolute}}'].join('') /*>>touch*/
+
+ /*>>csstransforms3d*/ ,['@media (',prefixes.join('transform-3d),('),mod,')',
+ '{#csstransforms3d{left:9px;position:absolute}}'].join('')/*>>csstransforms3d*/
+
+ /*>>generatedcontent*/,['#generatedcontent:after{content:"',smile,'";visibility:hidden}'].join('') /*>>generatedcontent*/
+ ],
+ [
+ /*>>fontface*/ 'fontface' /*>>fontface*/
+ /*>>touch*/ ,'touch' /*>>touch*/
+ /*>>csstransforms3d*/ ,'csstransforms3d' /*>>csstransforms3d*/
+ /*>>generatedcontent*/,'generatedcontent' /*>>generatedcontent*/
+
+ ]);/*>>testBundle*/
+
+
+ /**
+ * Tests
+ * -----
+ */
+
+ tests['flexbox'] = function() {
+ /**
+ * setPrefixedValueCSS sets the property of a specified element
+ * adding vendor prefixes to the VALUE of the property.
+ * @param {Element} element
+ * @param {string} property The property name. This will not be prefixed.
+ * @param {string} value The value of the property. This WILL be prefixed.
+ * @param {string=} extra Additional CSS to append unmodified to the end of
+ * the CSS string.
+ */
+ function setPrefixedValueCSS( element, property, value, extra ) {
+ property += ':';
+ element.style.cssText = (property + prefixes.join(value + ';' + property)).slice(0, -property.length) + (extra || '');
+ }
+
+ /**
+ * setPrefixedPropertyCSS sets the property of a specified element
+ * adding vendor prefixes to the NAME of the property.
+ * @param {Element} element
+ * @param {string} property The property name. This WILL be prefixed.
+ * @param {string} value The value of the property. This will not be prefixed.
+ * @param {string=} extra Additional CSS to append unmodified to the end of
+ * the CSS string.
+ */
+ function setPrefixedPropertyCSS( element, property, value, extra ) {
+ element.style.cssText = prefixes.join(property + ':' + value + ';') + (extra || '');
+ }
+
+ var c = document.createElement('div'),
+ elem = document.createElement('div');
+
+ setPrefixedValueCSS(c, 'display', 'box', 'width:42px;padding:0;');
+ setPrefixedPropertyCSS(elem, 'box-flex', '1', 'width:10px;');
+
+ c.appendChild(elem);
+ docElement.appendChild(c);
+
+ var ret = elem.offsetWidth === 42;
+
+ c.removeChild(elem);
+ docElement.removeChild(c);
+
+ return ret;
+ };
+
+ // On the S60 and BB Storm, getContext exists, but always returns undefined
+ // http://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'));
+ };
+
+ // This WebGL test may false positive.
+ // But really it's quite impossible to know whether webgl will succeed until after you create the context.
+ // You might have hardware that can support a 100x100 webgl canvas, but will not support a 1000x1000 webgl
+ // canvas. So this feature inference is weak, but intentionally so.
+
+ // It is known to false positive in FF4 with certain hardware and the iPad 2.
+
+ 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: http://crbug.com/36415
+ *
+ * We also test for Firefox 4 Multitouch Support.
+ *
+ * For more info, see: http://modernizr.github.com/Modernizr/touch.html
+ */
+
+ tests['touch'] = function() {
+ return Modernizr['touch'];
+ };
+
+ /**
+ * geolocation tests for the new Geolocation API specification.
+ * This test is a standards compliant-only test; for more complete
+ * testing, including a Google Gears fallback, please see:
+ * http://code.google.com/p/geo-location-javascript/
+ * or view a fallback solution using google's geo API:
+ * http://gist.github.com/366184
+ */
+ tests['geolocation'] = function() {
+ return !!navigator.geolocation;
+ };
+
+ // Per 1.6:
+ // This used to be Modernizr.crosswindowmessaging 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['postmessage'] = function() {
+ return !!window.postMessage;
+ };
+
+ // Web SQL database detection is tricky:
+
+ // In chrome incognito mode, openDatabase is truthy, but using it will
+ // throw an exception: http://crbug.com/42380
+ // We can create a dummy database, but there is no way to delete it afterwards.
+
+ // Meanwhile, Safari users can get prompted on any database creation.
+ // If they do, any page with Modernizr will give them a prompt:
+ // http://github.com/Modernizr/Modernizr/issues/closed#issue/113
+
+ // We have chosen to allow the Chrome incognito false positive, so that Modernizr
+ // doesn't litter the web with these test databases. As a developer, you'll have
+ // to account for this gotcha yourself.
+ tests['websqldatabase'] = function() {
+ var result = !!window.openDatabase;
+ /* if (result){
+ try {
+ result = !!openDatabase( mod + "testdb", "1.0", mod + "testdb", 2e4);
+ } catch(e) {
+ }
+ } */
+ return result;
+ };
+
+ // 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() {
+ for ( var i = -1, len = domPrefixes.length; ++i < len; ){
+ if ( window[domPrefixes[i].toLowerCase() + 'IndexedDB'] ){
+ return true;
+ }
+ }
+ return !!window.indexedDB;
+ };
+
+ // 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() {
+ return isEventSupported('dragstart') && isEventSupported('drop');
+ };
+
+ // Mozilla is targeting to land MozWebSocket for FF6
+ // bugzil.la/659324
+ tests['websockets'] = function() {
+ for ( var i = -1, len = domPrefixes.length; ++i < len; ){
+ if ( window[domPrefixes[i] + 'WebSocket'] ){
+ return true;
+ }
+ }
+ return 'WebSocket' in window;
+ };
+
+
+ // http://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);
+ };
+
+
+ // 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.
+
+
+ tests['backgroundsize'] = function() {
+ return testPropsAll('backgroundSize');
+ };
+
+ tests['borderimage'] = function() {
+ return testPropsAll('borderImage');
+ };
+
+
+ // Super comprehensive table about all the unique implementations of
+ // border-radius: http://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
+ // https://github.com/Modernizr/Modernizr/issues/#issue/59/comment/516632
+ return /^0.55$/.test(mStyle.opacity);
+ };
+
+
+ tests['cssanimations'] = function() {
+ return testPropsAll('animationName');
+ };
+
+
+ tests['csscolumns'] = function() {
+ return testPropsAll('columnCount');
+ };
+
+
+ tests['cssgradients'] = function() {
+ /**
+ * For CSS Gradients syntax, please see:
+ * http://webkit.org/blog/175/introducing-css-gradients/
+ * https://developer.mozilla.org/en/CSS/-moz-linear-gradient
+ * https://developer.mozilla.org/en/CSS/-moz-radial-gradient
+ * http://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(
+ (str1 + prefixes.join(str2 + str1) + prefixes.join(str3 + str1)).slice(0, -str1.length)
+ );
+
+ return contains(mStyle.backgroundImage, 'gradient');
+ };
+
+
+ tests['cssreflections'] = function() {
+ return testPropsAll('boxReflect');
+ };
+
+
+ tests['csstransforms'] = function() {
+ return !!testProps(['transformProperty', 'WebkitTransform', 'MozTransform', 'OTransform', 'msTransform']);
+ };
+
+
+ tests['csstransforms3d'] = function() {
+
+ var ret = !!testProps(['perspectiveProperty', 'WebkitPerspective', 'MozPerspective', 'OPerspective', 'msPerspective']);
+
+ // 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),(-o-transform-3d),(-moz-transform-3d),(-ms-transform-3d),(-webkit-transform-3d),(modernizr){ ... }`
+ ret = Modernizr['csstransforms3d'];
+ }
+ return ret;
+ };
+
+
+ tests['csstransitions'] = function() {
+ return testPropsAll('transitionProperty');
+ };
+
+
+ /*>>fontface*/
+ // @font-face detection routine by Diego Perini
+ // http://javascript.nwbox.com/CSSSupport/
+ tests['fontface'] = function() {
+ return Modernizr['fontface'];
+ };
+ /*>>fontface*/
+
+ // CSS generated content detection
+ tests['generatedcontent'] = function() {
+ return Modernizr['generatedcontent'];
+ };
+
+
+
+ // 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 : http://github.com/NielsLeenheer/html5test/blob/9106a8/index.html#L845
+ // thx to NielsLeenheer and zcorpan
+
+ // Note: in FF 3.5.1 and 3.5.0, "no" was a return value instead of empty string.
+ // Modernizr does not normalize for that.
+
+ 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"');
+
+ // Workaround required for IE9, which doesn't report video support without audio codec specified.
+ // bug 599718 @ msft connect
+ var h264 = 'video/mp4; codecs="avc1.42E01E';
+ bool.h264 = elem.canPlayType(h264 + '"') || elem.canPlayType(h264 + ', mp4a.40.2"');
+
+ bool.webm = elem.canPlayType('video/webm; codecs="vp8, vorbis"');
+ }
+
+ } 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"');
+ bool.mp3 = elem.canPlayType('audio/mpeg;');
+
+ // Mimetypes accepted:
+ // https://developer.mozilla.org/En/Media_formats_supported_by_the_audio_and_video_elements
+ // http://bit.ly/iphoneoscodecs
+ bool.wav = elem.canPlayType('audio/wav; codecs="1"');
+ bool.m4a = elem.canPlayType('audio/x-m4a;') || elem.canPlayType('audio/aac;');
+ }
+ } catch(e) { }
+
+ return bool;
+ };
+
+
+ // Firefox has made these tests rather unfun.
+
+ // 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 http://bugzil.la/365772 if cookies are disabled
+
+ // However, in Firefox 4 betas, if dom.storage.enabled == false, just mentioning
+ // the property will throw an exception. http://bugzil.la/599479
+ // This looks to be fixed for FF4 Final.
+
+ // Because we are forced to try/catch this, we'll go aggressive.
+
+ // FWIW: IE8 Compat mode supports these features completely:
+ // http://www.quirksmode.org/dom/html5.html
+ // But IE8 doesn't support either with local files
+
+ tests['localstorage'] = function() {
+ try {
+ return !!localStorage.getItem;
+ } catch(e) {
+ return false;
+ }
+ };
+
+ tests['sessionstorage'] = function() {
+ try {
+ return !!sessionStorage.getItem;
+ } 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;
+ };
+
+ // Thanks to F1lt3r and lucideer, ticket #35
+ tests['smil'] = function() {
+ return !!document.createElementNS && /SVG/.test(toString.call(document.createElementNS(ns.svg, 'animate')));
+ };
+
+ tests['svgclippaths'] = function() {
+ // Possibly returns a false positive in Safari 3.2?
+ return !!document.createElementNS && /SVG/.test(toString.call(document.createElementNS(ns.svg, 'clipPath')));
+ };
+
+ // 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() {
+ // 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:
+ // http://miketaylr.com/code/input-type-attr.html
+ // spec: http://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);
+ }
+ return attrs;
+ })('autocomplete autofocus list placeholder max min multiple pattern required step'.split(' '));
+
+ // 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. http://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)$/.test(inputElemType) ){
+ // Spec doesnt define any special parsing or detectable UI
+ // behaviors so we pass these through as true
+
+ // Interestingly, opera fails the earlier test, so it doesn't
+ // even make it here.
+
+ } else if ( /^(url|email)$/.test(inputElemType) ) {
+ // Real url and email support comes with prebaked validation.
+ bool = inputElem.checkValidity && inputElem.checkValidity() === false;
+
+ } else if ( /^color$/.test(inputElemType) ) {
+ // chuck into DOM and force reflow for Opera bug in 11.00
+ // github.com/Modernizr/Modernizr/issues#issue/159
+ docElement.appendChild(inputElem);
+ docElement.offsetWidth;
+ bool = inputElem.value != smile;
+ docElement.removeChild(inputElem);
+
+ } 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(' '));
+ }
+
+
+ // 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 ( hasOwnProperty(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);
+ }
+ }
+
+ // input tests need to run.
+ Modernizr.input || 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 ( hasOwnProperty( 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;
+ }
+
+ test = typeof test == "boolean" ? test : !!test();
+
+ 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;
+
+ //>>BEGIN IEPP
+ // Enable HTML 5 elements for styling (and printing) in IE.
+ if ( window.attachEvent && (function(){ var elem = document.createElement('div');
+ elem.innerHTML = '<elem></elem>';
+ return elem.childNodes.length !== 1; })() ) {
+
+ // iepp v2 by @jon_neal & afarkas : github.com/aFarkas/iepp/
+ (function(win, doc) {
+ win.iepp = win.iepp || {};
+ var iepp = win.iepp,
+ elems = iepp.html5elements || 'abbr|article|aside|audio|canvas|datalist|details|figcaption|figure|footer|header|hgroup|mark|meter|nav|output|progress|section|summary|time|video',
+ elemsArr = elems.split('|'),
+ elemsArrLen = elemsArr.length,
+ elemRegExp = new RegExp('(^|\\s)('+elems+')', 'gi'),
+ tagRegExp = new RegExp('<(\/*)('+elems+')', 'gi'),
+ filterReg = /^\s*[\{\}]\s*$/,
+ ruleRegExp = new RegExp('(^|[^\\n]*?\\s)('+elems+')([^\\n]*)({[\\n\\w\\W]*?})', 'gi'),
+ docFrag = doc.createDocumentFragment(),
+ html = doc.documentElement,
+ head = html.firstChild,
+ bodyElem = doc.createElement('body'),
+ styleElem = doc.createElement('style'),
+ printMedias = /print|all/,
+ body;
+ function shim(doc) {
+ var a = -1;
+ while (++a < elemsArrLen)
+ // Use createElement so IE allows HTML5-named elements in a document
+ doc.createElement(elemsArr[a]);
+ }
+
+ iepp.getCSS = function(styleSheetList, mediaType) {
+ if(styleSheetList+'' === undefined){return '';}
+ var a = -1,
+ len = styleSheetList.length,
+ styleSheet,
+ cssTextArr = [];
+ while (++a < len) {
+ styleSheet = styleSheetList[a];
+ //currently no test for disabled/alternate stylesheets
+ if(styleSheet.disabled){continue;}
+ mediaType = styleSheet.media || mediaType;
+ // Get css from all non-screen stylesheets and their imports
+ if (printMedias.test(mediaType)) cssTextArr.push(iepp.getCSS(styleSheet.imports, mediaType), styleSheet.cssText);
+ //reset mediaType to all with every new *not imported* stylesheet
+ mediaType = 'all';
+ }
+ return cssTextArr.join('');
+ };
+
+ iepp.parseCSS = function(cssText) {
+ var cssTextArr = [],
+ rule;
+ while ((rule = ruleRegExp.exec(cssText)) != null){
+ // Replace all html5 element references with iepp substitute classnames
+ cssTextArr.push(( (filterReg.exec(rule[1]) ? '\n' : rule[1]) +rule[2]+rule[3]).replace(elemRegExp, '$1.iepp_$2')+rule[4]);
+ }
+ return cssTextArr.join('\n');
+ };
+
+ iepp.writeHTML = function() {
+ var a = -1;
+ body = body || doc.body;
+ while (++a < elemsArrLen) {
+ var nodeList = doc.getElementsByTagName(elemsArr[a]),
+ nodeListLen = nodeList.length,
+ b = -1;
+ while (++b < nodeListLen)
+ if (nodeList[b].className.indexOf('iepp_') < 0)
+ // Append iepp substitute classnames to all html5 elements
+ nodeList[b].className += ' iepp_'+elemsArr[a];
+ }
+ docFrag.appendChild(body);
+ html.appendChild(bodyElem);
+ // Write iepp substitute print-safe document
+ bodyElem.className = body.className;
+ bodyElem.id = body.id;
+ // Replace HTML5 elements with <font> which is print-safe and shouldn't conflict since it isn't part of html5
+ bodyElem.innerHTML = body.innerHTML.replace(tagRegExp, '<$1font');
+ };
+
+
+ iepp._beforePrint = function() {
+ // Write iepp custom print CSS
+ styleElem.styleSheet.cssText = iepp.parseCSS(iepp.getCSS(doc.styleSheets, 'all'));
+ iepp.writeHTML();
+ };
+
+ iepp.restoreHTML = function(){
+ // Undo everything done in onbeforeprint
+ bodyElem.innerHTML = '';
+ html.removeChild(bodyElem);
+ html.appendChild(body);
+ };
+
+ iepp._afterPrint = function(){
+ // Undo everything done in onbeforeprint
+ iepp.restoreHTML();
+ styleElem.styleSheet.cssText = '';
+ };
+
+
+
+ // Shim the document and iepp fragment
+ shim(doc);
+ shim(docFrag);
+
+ //
+ if(iepp.disablePP){return;}
+
+ // Add iepp custom print style element
+ head.insertBefore(styleElem, head.firstChild);
+ styleElem.media = 'print';
+ styleElem.className = 'iepp-printshim';
+ win.attachEvent(
+ 'onbeforeprint',
+ iepp._beforePrint
+ );
+ win.attachEvent(
+ 'onafterprint',
+ iepp._afterPrint
+ );
+ })(window, document);
+ }
+ //>>END IEPP
+
+ // 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
+ Modernizr._prefixes = prefixes;
+ Modernizr._domPrefixes = domPrefixes;
+
+ // 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;
+
+ // Modernizr.hasEvent() detects support for a given event, with an optional element to test on
+ // Modernizr.hasEvent('gesturestart', elem)
+ Modernizr.hasEvent = isEventSupported;
+
+ // 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]);
+ };
+
+ // 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;
+
+
+
+ // 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;
+
+
+ // 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', // maybe?
+ // 'transition' : 'transitionEnd'
+ // },
+ // transEndEventName = transEndEventNames[ Modernizr.prefixed('transition') ];
+
+ Modernizr.prefixed = function(prop){
+ return testPropsAll(prop, 'pfx');
+ };
+
+
+
+ // Remove "no-js" class from <html> element, if it exists:
+ docElement.className = docElement.className.replace(/\bno-js\b/, '')
+
+ // Add the new classes to the <html> element.
+ + (enableClasses ? ' js ' + classes.join(' ') : '');
+
+ return Modernizr;
+
+})(this, this.document);

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