mirror of https://github.com/vitalif/phantomjs
1117 lines
42 KiB
JavaScript
1117 lines
42 KiB
JavaScript
/*!
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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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|
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// Per 1.6:
|
||
// 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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|
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// Web SQL database detection is tricky:
|
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|
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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.
|
||
|
||
// 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.
|
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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);
|
||
} 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);
|