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/*! |
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* Modernizr v2.0.6 |
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* http://www.modernizr.com |
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* |
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* Copyright (c) 2009-2011 Faruk Ates, Paul Irish, Alex Sexton |
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* Dual-licensed under the BSD or MIT licenses: www.modernizr.com/license/ |
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*/ |
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/* |
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* Modernizr tests which native CSS3 and HTML5 features are available in |
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* the current UA and makes the results available to you in two ways: |
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* as properties on a global Modernizr object, and as classes on the |
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* <html> element. This information allows you to progressively enhance |
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* your pages with a granular level of control over the experience. |
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* |
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* Modernizr has an optional (not included) conditional resource loader |
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* called Modernizr.load(), based on Yepnope.js (yepnopejs.com). |
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* To get a build that includes Modernizr.load(), as well as choosing |
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* which tests to include, go to www.modernizr.com/download/ |
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* |
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* Authors Faruk Ates, Paul Irish, Alex Sexton, |
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* Contributors Ryan Seddon, Ben Alman |
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*/ |
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window.Modernizr = (function( window, document, undefined ) { |
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var version = '2.0.6', |
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Modernizr = {}, |
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// option for enabling the HTML classes to be added |
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enableClasses = true, |
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docElement = document.documentElement, |
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docHead = document.head || document.getElementsByTagName('head')[0], |
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/** |
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* Create our "modernizr" element that we do most feature tests on. |
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*/ |
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mod = 'modernizr', |
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modElem = document.createElement(mod), |
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mStyle = modElem.style, |
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/** |
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* Create the input element for various Web Forms feature tests. |
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*/ |
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inputElem = document.createElement('input'), |
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smile = ':)', |
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toString = Object.prototype.toString, |
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// List of property values to set for css tests. See ticket #21 |
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prefixes = ' -webkit- -moz- -o- -ms- -khtml- '.split(' '), |
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// Following spec is to expose vendor-specific style properties as: |
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// elem.style.WebkitBorderRadius |
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// and the following would be incorrect: |
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// elem.style.webkitBorderRadius |
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// Webkit ghosts their properties in lowercase but Opera & Moz do not. |
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// Microsoft foregoes prefixes entirely <= IE8, but appears to |
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// use a lowercase `ms` instead of the correct `Ms` in IE9 |
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// More here: http://github.com/Modernizr/Modernizr/issues/issue/21 |
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domPrefixes = 'Webkit Moz O ms Khtml'.split(' '), |
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ns = {'svg': 'http://www.w3.org/2000/svg'}, |
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tests = {}, |
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inputs = {}, |
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attrs = {}, |
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classes = [], |
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featureName, // used in testing loop |
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// Inject element with style element and some CSS rules |
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injectElementWithStyles = function( rule, callback, nodes, testnames ) { |
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var style, ret, node, |
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div = document.createElement('div'); |
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if ( parseInt(nodes, 10) ) { |
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// In order not to give false positives we create a node for each test |
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// This also allows the method to scale for unspecified uses |
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while ( nodes-- ) { |
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node = document.createElement('div'); |
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node.id = testnames ? testnames[nodes] : mod + (nodes + 1); |
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div.appendChild(node); |
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} |
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} |
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// <style> elements in IE6-9 are considered 'NoScope' elements and therefore will be removed |
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// when injected with innerHTML. To get around this you need to prepend the 'NoScope' element |
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// with a 'scoped' element, in our case the soft-hyphen entity as it won't mess with our measurements. |
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// http://msdn.microsoft.com/en-us/library/ms533897%28VS.85%29.aspx |
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style = ['­', '<style>', rule, '</style>'].join(''); |
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div.id = mod; |
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div.innerHTML += style; |
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docElement.appendChild(div); |
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ret = callback(div, rule); |
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div.parentNode.removeChild(div); |
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return !!ret; |
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}, |
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// adapted from matchMedia polyfill |
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// by Scott Jehl and Paul Irish |
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// gist.github.com/786768 |
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testMediaQuery = function( mq ) { |
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if ( window.matchMedia ) { |
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return matchMedia(mq).matches; |
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} |
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var bool; |
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injectElementWithStyles('@media ' + mq + ' { #' + mod + ' { position: absolute; } }', function( node ) { |
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bool = (window.getComputedStyle ? |
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getComputedStyle(node, null) : |
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node.currentStyle)['position'] == 'absolute'; |
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}); |
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return bool; |
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}, |
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/** |
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* isEventSupported determines if a given element supports the given event |
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* function from http://yura.thinkweb2.com/isEventSupported/ |
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*/ |
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isEventSupported = (function() { |
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var TAGNAMES = { |
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'select': 'input', 'change': 'input', |
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'submit': 'form', 'reset': 'form', |
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'error': 'img', 'load': 'img', 'abort': 'img' |
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}; |
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function isEventSupported( eventName, element ) { |
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element = element || document.createElement(TAGNAMES[eventName] || 'div'); |
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eventName = 'on' + eventName; |
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// When using `setAttribute`, IE skips "unload", WebKit skips "unload" and "resize", whereas `in` "catches" those |
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var isSupported = eventName in element; |
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if ( !isSupported ) { |
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// If it has no `setAttribute` (i.e. doesn't implement Node interface), try generic element |
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if ( !element.setAttribute ) { |
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element = document.createElement('div'); |
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} |
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if ( element.setAttribute && element.removeAttribute ) { |
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element.setAttribute(eventName, ''); |
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isSupported = is(element[eventName], 'function'); |
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// If property was created, "remove it" (by setting value to `undefined`) |
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if ( !is(element[eventName], undefined) ) { |
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element[eventName] = undefined; |
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} |
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element.removeAttribute(eventName); |
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} |
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} |
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element = null; |
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return isSupported; |
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} |
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return isEventSupported; |
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})(); |
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// hasOwnProperty shim by kangax needed for Safari 2.0 support |
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var _hasOwnProperty = ({}).hasOwnProperty, hasOwnProperty; |
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if ( !is(_hasOwnProperty, undefined) && !is(_hasOwnProperty.call, undefined) ) { |
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hasOwnProperty = function (object, property) { |
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return _hasOwnProperty.call(object, property); |
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}; |
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} |
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else { |
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hasOwnProperty = function (object, property) { /* yes, this can give false positives/negatives, but most of the time we don't care about those */ |
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return ((property in object) && is(object.constructor.prototype[property], undefined)); |
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}; |
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} |
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/** |
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* setCss applies given styles to the Modernizr DOM node. |
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*/ |
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function setCss( str ) { |
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mStyle.cssText = str; |
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} |
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/** |
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* setCssAll extrapolates all vendor-specific css strings. |
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*/ |
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function setCssAll( str1, str2 ) { |
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return setCss(prefixes.join(str1 + ';') + ( str2 || '' )); |
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} |
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/** |
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* is returns a boolean for if typeof obj is exactly type. |
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*/ |
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function is( obj, type ) { |
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return typeof obj === type; |
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} |
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/** |
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* contains returns a boolean for if substr is found within str. |
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*/ |
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function contains( str, substr ) { |
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return !!~('' + str).indexOf(substr); |
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} |
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/** |
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* testProps is a generic CSS / DOM property test; if a browser supports |
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* a certain property, it won't return undefined for it. |
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* A supported CSS property returns empty string when its not yet set. |
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*/ |
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function testProps( props, prefixed ) { |
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for ( var i in props ) { |
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if ( mStyle[ props[i] ] !== undefined ) { |
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return prefixed == 'pfx' ? props[i] : true; |
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} |
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} |
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return false; |
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} |
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/** |
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* testPropsAll tests a list of DOM properties we want to check against. |
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* We specify literally ALL possible (known and/or likely) properties on |
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* the element including the non-vendor prefixed one, for forward- |
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* compatibility. |
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*/ |
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function testPropsAll( prop, prefixed ) { |
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var ucProp = prop.charAt(0).toUpperCase() + prop.substr(1), |
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props = (prop + ' ' + domPrefixes.join(ucProp + ' ') + ucProp).split(' '); |
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return testProps(props, prefixed); |
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} |
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/** |
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* testBundle tests a list of CSS features that require element and style injection. |
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* By bundling them together we can reduce the need to touch the DOM multiple times. |
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*/ |
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/*>>testBundle*/ |
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var testBundle = (function( styles, tests ) { |
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var style = styles.join(''), |
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len = tests.length; |
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injectElementWithStyles(style, function( node, rule ) { |
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var style = document.styleSheets[document.styleSheets.length - 1], |
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// IE8 will bork if you create a custom build that excludes both fontface and generatedcontent tests. |
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// So we check for cssRules and that there is a rule available |
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// More here: https://github.com/Modernizr/Modernizr/issues/288 & https://github.com/Modernizr/Modernizr/issues/293 |
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cssText = style.cssRules && style.cssRules[0] ? style.cssRules[0].cssText : style.cssText || "", |
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children = node.childNodes, hash = {}; |
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while ( len-- ) { |
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hash[children[len].id] = children[len]; |
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} |
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/*>>touch*/ Modernizr['touch'] = ('ontouchstart' in window) || hash['touch'].offsetTop === 9; /*>>touch*/ |
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/*>>csstransforms3d*/ Modernizr['csstransforms3d'] = hash['csstransforms3d'].offsetLeft === 9; /*>>csstransforms3d*/ |
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/*>>generatedcontent*/Modernizr['generatedcontent'] = hash['generatedcontent'].offsetHeight >= 1; /*>>generatedcontent*/ |
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/*>>fontface*/ Modernizr['fontface'] = /src/i.test(cssText) && |
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cssText.indexOf(rule.split(' ')[0]) === 0; /*>>fontface*/ |
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}, len, tests); |
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})([ |
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// Pass in styles to be injected into document |
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/*>>fontface*/ '@font-face {font-family:"font";src:url("https://")}' /*>>fontface*/ |
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/*>>touch*/ ,['@media (',prefixes.join('touch-enabled),('),mod,')', |
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'{#touch{top:9px;position:absolute}}'].join('') /*>>touch*/ |
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/*>>csstransforms3d*/ ,['@media (',prefixes.join('transform-3d),('),mod,')', |
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'{#csstransforms3d{left:9px;position:absolute}}'].join('')/*>>csstransforms3d*/ |
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/*>>generatedcontent*/,['#generatedcontent:after{content:"',smile,'";visibility:hidden}'].join('') /*>>generatedcontent*/ |
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], |
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[ |
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/*>>fontface*/ 'fontface' /*>>fontface*/ |
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/*>>touch*/ ,'touch' /*>>touch*/ |
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/*>>csstransforms3d*/ ,'csstransforms3d' /*>>csstransforms3d*/ |
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/*>>generatedcontent*/,'generatedcontent' /*>>generatedcontent*/ |
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]);/*>>testBundle*/ |
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/** |
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* Tests |
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* ----- |
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*/ |
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tests['flexbox'] = function() { |
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/** |
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* setPrefixedValueCSS sets the property of a specified element |
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* adding vendor prefixes to the VALUE of the property. |
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* @param {Element} element |
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* @param {string} property The property name. This will not be prefixed. |
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* @param {string} value The value of the property. This WILL be prefixed. |
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* @param {string=} extra Additional CSS to append unmodified to the end of |
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* the CSS string. |
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*/ |
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function setPrefixedValueCSS( element, property, value, extra ) { |
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property += ':'; |
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element.style.cssText = (property + prefixes.join(value + ';' + property)).slice(0, -property.length) + (extra || ''); |
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} |
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/** |
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* setPrefixedPropertyCSS sets the property of a specified element |
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* adding vendor prefixes to the NAME of the property. |
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* @param {Element} element |
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* @param {string} property The property name. This WILL be prefixed. |
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* @param {string} value The value of the property. This will not be prefixed. |
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* @param {string=} extra Additional CSS to append unmodified to the end of |
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* the CSS string. |
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*/ |
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function setPrefixedPropertyCSS( element, property, value, extra ) { |
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element.style.cssText = prefixes.join(property + ':' + value + ';') + (extra || ''); |
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} |
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var c = document.createElement('div'), |
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elem = document.createElement('div'); |
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setPrefixedValueCSS(c, 'display', 'box', 'width:42px;padding:0;'); |
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setPrefixedPropertyCSS(elem, 'box-flex', '1', 'width:10px;'); |
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c.appendChild(elem); |
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docElement.appendChild(c); |
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var ret = elem.offsetWidth === 42; |
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c.removeChild(elem); |
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docElement.removeChild(c); |
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return ret; |
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}; |
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// On the S60 and BB Storm, getContext exists, but always returns undefined |
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// http://github.com/Modernizr/Modernizr/issues/issue/97/ |
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tests['canvas'] = function() { |
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var elem = document.createElement('canvas'); |
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return !!(elem.getContext && elem.getContext('2d')); |
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}; |
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tests['canvastext'] = function() { |
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return !!(Modernizr['canvas'] && is(document.createElement('canvas').getContext('2d').fillText, 'function')); |
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}; |
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// This WebGL test may false positive. |
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// But really it's quite impossible to know whether webgl will succeed until after you create the context. |
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// You might have hardware that can support a 100x100 webgl canvas, but will not support a 1000x1000 webgl |
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// canvas. So this feature inference is weak, but intentionally so. |
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// It is known to false positive in FF4 with certain hardware and the iPad 2. |
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tests['webgl'] = function() { |
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return !!window.WebGLRenderingContext; |
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}; |
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/* |
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* The Modernizr.touch test only indicates if the browser supports |
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* touch events, which does not necessarily reflect a touchscreen |
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* device, as evidenced by tablets running Windows 7 or, alas, |
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* the Palm Pre / WebOS (touch) phones. |
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* |
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* Additionally, Chrome (desktop) used to lie about its support on this, |
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* but that has since been rectified: http://crbug.com/36415 |
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* |
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* We also test for Firefox 4 Multitouch Support. |
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* |
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* For more info, see: http://modernizr.github.com/Modernizr/touch.html |
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*/ |
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tests['touch'] = function() { |
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return Modernizr['touch']; |
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}; |
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/** |
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* geolocation tests for the new Geolocation API specification. |
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* This test is a standards compliant-only test; for more complete |
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* testing, including a Google Gears fallback, please see: |
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* http://code.google.com/p/geo-location-javascript/ |
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* or view a fallback solution using google's geo API: |
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* http://gist.github.com/366184 |
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*/ |
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tests['geolocation'] = function() { |
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return !!navigator.geolocation; |
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}; |
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// Per 1.6: |
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// This used to be Modernizr.crosswindowmessaging but the longer |
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// name has been deprecated in favor of a shorter and property-matching one. |
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// The old API is still available in 1.6, but as of 2.0 will throw a warning, |
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// and in the first release thereafter disappear entirely. |
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tests['postmessage'] = function() { |
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return !!window.postMessage; |
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}; |
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// Web SQL database detection is tricky: |
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// In chrome incognito mode, openDatabase is truthy, but using it will |
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// throw an exception: http://crbug.com/42380 |
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// We can create a dummy database, but there is no way to delete it afterwards. |
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// Meanwhile, Safari users can get prompted on any database creation. |
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// If they do, any page with Modernizr will give them a prompt: |
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// http://github.com/Modernizr/Modernizr/issues/closed#issue/113 |
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// We have chosen to allow the Chrome incognito false positive, so that Modernizr |
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// doesn't litter the web with these test databases. As a developer, you'll have |
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// to account for this gotcha yourself. |
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tests['websqldatabase'] = function() { |
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var result = !!window.openDatabase; |
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/* if (result){ |
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try { |
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result = !!openDatabase( mod + "testdb", "1.0", mod + "testdb", 2e4); |
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} catch(e) { |
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} |
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} */ |
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return result; |
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}; |
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// Vendors had inconsistent prefixing with the experimental Indexed DB: |
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// - Webkit's implementation is accessible through webkitIndexedDB |
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// - Firefox shipped moz_indexedDB before FF4b9, but since then has been mozIndexedDB |
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// For speed, we don't test the legacy (and beta-only) indexedDB |
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tests['indexedDB'] = function() { |
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for ( var i = -1, len = domPrefixes.length; ++i < len; ){ |
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if ( window[domPrefixes[i].toLowerCase() + 'IndexedDB'] ){ |
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return true; |
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} |
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} |
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return !!window.indexedDB; |
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}; |
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// documentMode logic from YUI to filter out IE8 Compat Mode |
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// which false positives. |
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tests['hashchange'] = function() { |
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return isEventSupported('hashchange', window) && (document.documentMode === undefined || document.documentMode > 7); |
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}; |
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// Per 1.6: |
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// This used to be Modernizr.historymanagement but the longer |
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// name has been deprecated in favor of a shorter and property-matching one. |
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// The old API is still available in 1.6, but as of 2.0 will throw a warning, |
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// and in the first release thereafter disappear entirely. |
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tests['history'] = function() { |
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return !!(window.history && history.pushState); |
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}; |
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tests['draganddrop'] = function() { |
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return isEventSupported('dragstart') && isEventSupported('drop'); |
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}; |
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// Mozilla is targeting to land MozWebSocket for FF6 |
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// bugzil.la/659324 |
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tests['websockets'] = function() { |
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for ( var i = -1, len = domPrefixes.length; ++i < len; ){ |
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if ( window[domPrefixes[i] + 'WebSocket'] ){ |
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return true; |
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} |
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} |
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return 'WebSocket' in window; |
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}; |
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// http://css-tricks.com/rgba-browser-support/ |
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tests['rgba'] = function() { |
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// Set an rgba() color and check the returned value |
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setCss('background-color:rgba(150,255,150,.5)'); |
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return contains(mStyle.backgroundColor, 'rgba'); |
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}; |
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tests['hsla'] = function() { |
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// Same as rgba(), in fact, browsers re-map hsla() to rgba() internally, |
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// except IE9 who retains it as hsla |
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setCss('background-color:hsla(120,40%,100%,.5)'); |
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return contains(mStyle.backgroundColor, 'rgba') || contains(mStyle.backgroundColor, 'hsla'); |
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}; |
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tests['multiplebgs'] = function() { |
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// Setting multiple images AND a color on the background shorthand property |
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// and then querying the style.background property value for the number of |
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// occurrences of "url(" is a reliable method for detecting ACTUAL support for this! |
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setCss('background:url(https://),url(https://),red url(https://)'); |
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// If the UA supports multiple backgrounds, there should be three occurrences |
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// of the string "url(" in the return value for elemStyle.background |
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return /(url\s*\(.*?){3}/.test(mStyle.background); |
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}; |
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// In testing support for a given CSS property, it's legit to test: |
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// `elem.style[styleName] !== undefined` |
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// If the property is supported it will return an empty string, |
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// if unsupported it will return undefined. |
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// We'll take advantage of this quick test and skip setting a style |
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// on our modernizr element, but instead just testing undefined vs |
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// empty string. |
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tests['backgroundsize'] = function() { |
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return testPropsAll('backgroundSize'); |
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}; |
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tests['borderimage'] = function() { |
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return testPropsAll('borderImage'); |
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}; |
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// Super comprehensive table about all the unique implementations of |
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// border-radius: http://muddledramblings.com/table-of-css3-border-radius-compliance |
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tests['borderradius'] = function() { |
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return testPropsAll('borderRadius'); |
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}; |
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// WebOS unfortunately false positives on this test. |
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tests['boxshadow'] = function() { |
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return testPropsAll('boxShadow'); |
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}; |
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// FF3.0 will false positive on this test |
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tests['textshadow'] = function() { |
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return document.createElement('div').style.textShadow === ''; |
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}; |
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tests['opacity'] = function() { |
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// Browsers that actually have CSS Opacity implemented have done so |
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// according to spec, which means their return values are within the |
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// range of [0.0,1.0] - including the leading zero. |
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setCssAll('opacity:.55'); |
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// The non-literal . in this regex is intentional: |
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// German Chrome returns this value as 0,55 |
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// https://github.com/Modernizr/Modernizr/issues/#issue/59/comment/516632 |
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return /^0.55$/.test(mStyle.opacity); |
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}; |
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tests['cssanimations'] = function() { |
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return testPropsAll('animationName'); |
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}; |
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tests['csscolumns'] = function() { |
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return testPropsAll('columnCount'); |
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}; |
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|
|
|
|
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/, '') |
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|
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// Add the new classes to the <html> element. |
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+ (enableClasses ? ' js ' + classes.join(' ') : ''); |
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|
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return Modernizr; |
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|
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})(this, this.document); |