969 lines
36 KiB
JavaScript
969 lines
36 KiB
JavaScript
/*!
|
||
* Note: While Microsoft is not the author of this file, Microsoft is
|
||
* offering you a license subject to the terms of the Microsoft Software
|
||
* License Terms for Microsoft ASP.NET Model View Controller 3.
|
||
* Microsoft reserves all other rights. The notices below are provided
|
||
* for informational purposes only and are not the license terms under
|
||
* which Microsoft distributed this file.
|
||
*
|
||
* Modernizr v1.7
|
||
* http://www.modernizr.com
|
||
*
|
||
* Developed by:
|
||
* - Faruk Ates http://farukat.es/
|
||
* - Paul Irish http://paulirish.com/
|
||
*
|
||
* Copyright (c) 2009-2011
|
||
*/
|
||
|
||
|
||
/*
|
||
* Modernizr is a script that detects native CSS3 and HTML5 features
|
||
* available in the current UA and provides an object containing all
|
||
* features with a true/false value, depending on whether the UA has
|
||
* native support for it or not.
|
||
*
|
||
* Modernizr will also add classes to the <html> element of the page,
|
||
* one for each feature it detects. If the UA supports it, a class
|
||
* like "cssgradients" will be added. If not, the class name will be
|
||
* "no-cssgradients". This allows for simple if-conditionals in your
|
||
* CSS, giving you fine control over the look & feel of your website.
|
||
*
|
||
* @author Faruk Ates
|
||
* @author Paul Irish
|
||
* @copyright (c) 2009-2011 Faruk Ates.
|
||
* @contributor Ben Alman
|
||
*/
|
||
|
||
window.Modernizr = (function(window,document,undefined){
|
||
|
||
var version = '1.7',
|
||
|
||
ret = {},
|
||
|
||
/**
|
||
* !! DEPRECATED !!
|
||
*
|
||
* enableHTML5 is a private property for advanced use only. If enabled,
|
||
* it will make Modernizr.init() run through a brief while() loop in
|
||
* which it will create all HTML5 elements in the DOM to allow for
|
||
* styling them in Internet Explorer, which does not recognize any
|
||
* non-HTML4 elements unless created in the DOM this way.
|
||
*
|
||
* enableHTML5 is ON by default.
|
||
*
|
||
* The enableHTML5 toggle option is DEPRECATED as per 1.6, and will be
|
||
* replaced in 2.0 in lieu of the modular, configurable nature of 2.0.
|
||
*/
|
||
enableHTML5 = true,
|
||
|
||
|
||
docElement = document.documentElement,
|
||
docHead = document.head || document.getElementsByTagName('head')[0],
|
||
|
||
/**
|
||
* Create our "modernizr" element that we do most feature tests on.
|
||
*/
|
||
mod = 'modernizr',
|
||
modElem = document.createElement( mod ),
|
||
m_style = modElem.style,
|
||
|
||
/**
|
||
* Create the input element for various Web Forms feature tests.
|
||
*/
|
||
inputElem = document.createElement( 'input' ),
|
||
|
||
smile = ':)',
|
||
|
||
tostring = Object.prototype.toString,
|
||
|
||
// List of property values to set for css tests. See ticket #21
|
||
prefixes = ' -webkit- -moz- -o- -ms- -khtml- '.split(' '),
|
||
|
||
// Following spec is to expose vendor-specific style properties as:
|
||
// elem.style.WebkitBorderRadius
|
||
// and the following would be incorrect:
|
||
// elem.style.webkitBorderRadius
|
||
|
||
// Webkit ghosts their properties in lowercase but Opera & Moz do not.
|
||
// Microsoft foregoes prefixes entirely <= IE8, but appears to
|
||
// use a lowercase `ms` instead of the correct `Ms` in IE9
|
||
|
||
// More here: http://github.com/Modernizr/Modernizr/issues/issue/21
|
||
domPrefixes = 'Webkit Moz O ms Khtml'.split(' '),
|
||
|
||
ns = {'svg': 'http://www.w3.org/2000/svg'},
|
||
|
||
tests = {},
|
||
inputs = {},
|
||
attrs = {},
|
||
|
||
classes = [],
|
||
|
||
featurename, // used in testing loop
|
||
|
||
|
||
|
||
// todo: consider using http://javascript.nwbox.com/CSSSupport/css-support.js instead
|
||
testMediaQuery = function(mq){
|
||
|
||
var st = document.createElement('style'),
|
||
div = document.createElement('div'),
|
||
ret;
|
||
|
||
st.textContent = mq + '{#modernizr{height:3px}}';
|
||
docHead.appendChild(st);
|
||
div.id = 'modernizr';
|
||
docElement.appendChild(div);
|
||
|
||
ret = div.offsetHeight === 3;
|
||
|
||
st.parentNode.removeChild(st);
|
||
div.parentNode.removeChild(div);
|
||
|
||
return !!ret;
|
||
|
||
},
|
||
|
||
|
||
/**
|
||
* isEventSupported determines if a given element supports the given event
|
||
* function from http://yura.thinkweb2.com/isEventSupported/
|
||
*/
|
||
isEventSupported = (function(){
|
||
|
||
var TAGNAMES = {
|
||
'select':'input','change':'input',
|
||
'submit':'form','reset':'form',
|
||
'error':'img','load':'img','abort':'img'
|
||
};
|
||
|
||
function isEventSupported(eventName, element) {
|
||
|
||
element = element || document.createElement(TAGNAMES[eventName] || 'div');
|
||
eventName = 'on' + eventName;
|
||
|
||
// When using `setAttribute`, IE skips "unload", WebKit skips "unload" and "resize", whereas `in` "catches" those
|
||
var isSupported = (eventName in element);
|
||
|
||
if (!isSupported) {
|
||
// If it has no `setAttribute` (i.e. doesn't implement Node interface), try generic element
|
||
if (!element.setAttribute) {
|
||
element = document.createElement('div');
|
||
}
|
||
if (element.setAttribute && element.removeAttribute) {
|
||
element.setAttribute(eventName, '');
|
||
isSupported = is(element[eventName], 'function');
|
||
|
||
// If property was created, "remove it" (by setting value to `undefined`)
|
||
if (!is(element[eventName], undefined)) {
|
||
element[eventName] = undefined;
|
||
}
|
||
element.removeAttribute(eventName);
|
||
}
|
||
}
|
||
|
||
element = null;
|
||
return isSupported;
|
||
}
|
||
return isEventSupported;
|
||
})();
|
||
|
||
|
||
// hasOwnProperty shim by kangax needed for Safari 2.0 support
|
||
var _hasOwnProperty = ({}).hasOwnProperty, hasOwnProperty;
|
||
if (!is(_hasOwnProperty, undefined) && !is(_hasOwnProperty.call, undefined)) {
|
||
hasOwnProperty = function (object, property) {
|
||
return _hasOwnProperty.call(object, property);
|
||
};
|
||
}
|
||
else {
|
||
hasOwnProperty = function (object, property) { /* yes, this can give false positives/negatives, but most of the time we don't care about those */
|
||
return ((property in object) && is(object.constructor.prototype[property], undefined));
|
||
};
|
||
}
|
||
|
||
/**
|
||
* set_css applies given styles to the Modernizr DOM node.
|
||
*/
|
||
function set_css( str ) {
|
||
m_style.cssText = str;
|
||
}
|
||
|
||
/**
|
||
* set_css_all extrapolates all vendor-specific css strings.
|
||
*/
|
||
function set_css_all( str1, str2 ) {
|
||
return set_css(prefixes.join(str1 + ';') + ( str2 || '' ));
|
||
}
|
||
|
||
/**
|
||
* is returns a boolean for if typeof obj is exactly type.
|
||
*/
|
||
function is( obj, type ) {
|
||
return typeof obj === type;
|
||
}
|
||
|
||
/**
|
||
* contains returns a boolean for if substr is found within str.
|
||
*/
|
||
function contains( str, substr ) {
|
||
return (''+str).indexOf( substr ) !== -1;
|
||
}
|
||
|
||
/**
|
||
* test_props is a generic CSS / DOM property test; if a browser supports
|
||
* a certain property, it won't return undefined for it.
|
||
* A supported CSS property returns empty string when its not yet set.
|
||
*/
|
||
function test_props( props, callback ) {
|
||
for ( var i in props ) {
|
||
if ( m_style[ props[i] ] !== undefined && ( !callback || callback( props[i], modElem ) ) ) {
|
||
return true;
|
||
}
|
||
}
|
||
}
|
||
|
||
/**
|
||
* test_props_all tests a list of DOM properties we want to check against.
|
||
* We specify literally ALL possible (known and/or likely) properties on
|
||
* the element including the non-vendor prefixed one, for forward-
|
||
* compatibility.
|
||
*/
|
||
function test_props_all( prop, callback ) {
|
||
|
||
var uc_prop = prop.charAt(0).toUpperCase() + prop.substr(1),
|
||
props = (prop + ' ' + domPrefixes.join(uc_prop + ' ') + uc_prop).split(' ');
|
||
|
||
return !!test_props( props, callback );
|
||
}
|
||
|
||
|
||
/**
|
||
* Tests
|
||
* -----
|
||
*/
|
||
|
||
tests['flexbox'] = function() {
|
||
/**
|
||
* set_prefixed_value_css sets the property of a specified element
|
||
* adding vendor prefixes to the VALUE of the property.
|
||
* @param {Element} element
|
||
* @param {string} property The property name. This will not be prefixed.
|
||
* @param {string} value The value of the property. This WILL be prefixed.
|
||
* @param {string=} extra Additional CSS to append unmodified to the end of
|
||
* the CSS string.
|
||
*/
|
||
function set_prefixed_value_css(element, property, value, extra) {
|
||
property += ':';
|
||
element.style.cssText = (property + prefixes.join(value + ';' + property)).slice(0, -property.length) + (extra || '');
|
||
}
|
||
|
||
/**
|
||
* set_prefixed_property_css sets the property of a specified element
|
||
* adding vendor prefixes to the NAME of the property.
|
||
* @param {Element} element
|
||
* @param {string} property The property name. This WILL be prefixed.
|
||
* @param {string} value The value of the property. This will not be prefixed.
|
||
* @param {string=} extra Additional CSS to append unmodified to the end of
|
||
* the CSS string.
|
||
*/
|
||
function set_prefixed_property_css(element, property, value, extra) {
|
||
element.style.cssText = prefixes.join(property + ':' + value + ';') + (extra || '');
|
||
}
|
||
|
||
var c = document.createElement('div'),
|
||
elem = document.createElement('div');
|
||
|
||
set_prefixed_value_css(c, 'display', 'box', 'width:42px;padding:0;');
|
||
set_prefixed_property_css(elem, 'box-flex', '1', 'width:10px;');
|
||
|
||
c.appendChild(elem);
|
||
docElement.appendChild(c);
|
||
|
||
var ret = elem.offsetWidth === 42;
|
||
|
||
c.removeChild(elem);
|
||
docElement.removeChild(c);
|
||
|
||
return ret;
|
||
};
|
||
|
||
// On the S60 and BB Storm, getContext exists, but always returns undefined
|
||
// http://github.com/Modernizr/Modernizr/issues/issue/97/
|
||
|
||
tests['canvas'] = function() {
|
||
var elem = document.createElement( 'canvas' );
|
||
return !!(elem.getContext && elem.getContext('2d'));
|
||
};
|
||
|
||
tests['canvastext'] = function() {
|
||
return !!(ret['canvas'] && is(document.createElement( 'canvas' ).getContext('2d').fillText, 'function'));
|
||
};
|
||
|
||
// This WebGL test false positives in FF depending on graphics hardware. But really it's quite impossible to know
|
||
// wether webgl will succeed until after you create the context. You might have hardware that can support
|
||
// a 100x100 webgl canvas, but will not support a 1000x1000 webgl canvas. So this feature inference is weak,
|
||
// but intentionally so.
|
||
tests['webgl'] = function(){
|
||
return !!window.WebGLRenderingContext;
|
||
};
|
||
|
||
/*
|
||
* The Modernizr.touch test only indicates if the browser supports
|
||
* touch events, which does not necessarily reflect a touchscreen
|
||
* device, as evidenced by tablets running Windows 7 or, alas,
|
||
* the Palm Pre / WebOS (touch) phones.
|
||
*
|
||
* Additionally, Chrome (desktop) used to lie about its support on this,
|
||
* but that has since been rectified: http://crbug.com/36415
|
||
*
|
||
* We also test for Firefox 4 Multitouch Support.
|
||
*
|
||
* For more info, see: http://modernizr.github.com/Modernizr/touch.html
|
||
*/
|
||
|
||
tests['touch'] = function() {
|
||
|
||
return ('ontouchstart' in window) || testMediaQuery('@media ('+prefixes.join('touch-enabled),(')+'modernizr)');
|
||
|
||
};
|
||
|
||
|
||
/**
|
||
* geolocation tests for the new Geolocation API specification.
|
||
* This test is a standards compliant-only test; for more complete
|
||
* testing, including a Google Gears fallback, please see:
|
||
* http://code.google.com/p/geo-location-javascript/
|
||
* or view a fallback solution using google's geo API:
|
||
* http://gist.github.com/366184
|
||
*/
|
||
tests['geolocation'] = function() {
|
||
return !!navigator.geolocation;
|
||
};
|
||
|
||
// Per 1.6:
|
||
// This used to be Modernizr.crosswindowmessaging but the longer
|
||
// name has been deprecated in favor of a shorter and property-matching one.
|
||
// The old API is still available in 1.6, but as of 2.0 will throw a warning,
|
||
// and in the first release thereafter disappear entirely.
|
||
tests['postmessage'] = function() {
|
||
return !!window.postMessage;
|
||
};
|
||
|
||
// Web SQL database detection is tricky:
|
||
|
||
// In chrome incognito mode, openDatabase is truthy, but using it will
|
||
// throw an exception: http://crbug.com/42380
|
||
// We can create a dummy database, but there is no way to delete it afterwards.
|
||
|
||
// Meanwhile, Safari users can get prompted on any database creation.
|
||
// If they do, any page with Modernizr will give them a prompt:
|
||
// http://github.com/Modernizr/Modernizr/issues/closed#issue/113
|
||
|
||
// We have chosen to allow the Chrome incognito false positive, so that Modernizr
|
||
// doesn't litter the web with these test databases. As a developer, you'll have
|
||
// to account for this gotcha yourself.
|
||
tests['websqldatabase'] = function() {
|
||
var result = !!window.openDatabase;
|
||
/* if (result){
|
||
try {
|
||
result = !!openDatabase( mod + "testdb", "1.0", mod + "testdb", 2e4);
|
||
} catch(e) {
|
||
}
|
||
} */
|
||
return result;
|
||
};
|
||
|
||
// Vendors have inconsistent prefixing with the experimental Indexed DB:
|
||
// - Firefox is shipping indexedDB in FF4 as moz_indexedDB
|
||
// - Webkit's implementation is accessible through webkitIndexedDB
|
||
// We test both styles.
|
||
tests['indexedDB'] = function(){
|
||
for (var i = -1, len = domPrefixes.length; ++i < len; ){
|
||
var prefix = domPrefixes[i].toLowerCase();
|
||
if (window[prefix + '_indexedDB'] || window[prefix + 'IndexedDB']){
|
||
return true;
|
||
}
|
||
}
|
||
return false;
|
||
};
|
||
|
||
// 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');
|
||
};
|
||
|
||
tests['websockets'] = function(){
|
||
return ('WebSocket' in window);
|
||
};
|
||
|
||
|
||
// http://css-tricks.com/rgba-browser-support/
|
||
tests['rgba'] = function() {
|
||
// Set an rgba() color and check the returned value
|
||
|
||
set_css( 'background-color:rgba(150,255,150,.5)' );
|
||
|
||
return contains( m_style.backgroundColor, 'rgba' );
|
||
};
|
||
|
||
tests['hsla'] = function() {
|
||
// Same as rgba(), in fact, browsers re-map hsla() to rgba() internally,
|
||
// except IE9 who retains it as hsla
|
||
|
||
set_css('background-color:hsla(120,40%,100%,.5)' );
|
||
|
||
return contains( m_style.backgroundColor, 'rgba' ) || contains( m_style.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!
|
||
|
||
set_css( 'background:url(//:),url(//:),red url(//:)' );
|
||
|
||
// If the UA supports multiple backgrounds, there should be three occurrences
|
||
// of the string "url(" in the return value for elem_style.background
|
||
|
||
return new RegExp("(url\\s*\\(.*?){3}").test(m_style.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 test_props_all( 'backgroundSize' );
|
||
};
|
||
|
||
tests['borderimage'] = function() {
|
||
return test_props_all( '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 test_props_all( 'borderRadius', '', function( prop ) {
|
||
return contains( prop, 'orderRadius' );
|
||
});
|
||
};
|
||
|
||
// WebOS unfortunately false positives on this test.
|
||
tests['boxshadow'] = function() {
|
||
return test_props_all( '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.
|
||
|
||
set_css_all( '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(m_style.opacity);
|
||
};
|
||
|
||
|
||
tests['cssanimations'] = function() {
|
||
return test_props_all( 'animationName' );
|
||
};
|
||
|
||
|
||
tests['csscolumns'] = function() {
|
||
return test_props_all( '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);';
|
||
|
||
set_css(
|
||
(str1 + prefixes.join(str2 + str1) + prefixes.join(str3 + str1)).slice(0,-str1.length)
|
||
);
|
||
|
||
return contains( m_style.backgroundImage, 'gradient' );
|
||
};
|
||
|
||
|
||
tests['cssreflections'] = function() {
|
||
return test_props_all( 'boxReflect' );
|
||
};
|
||
|
||
|
||
tests['csstransforms'] = function() {
|
||
return !!test_props([ 'transformProperty', 'WebkitTransform', 'MozTransform', 'OTransform', 'msTransform' ]);
|
||
};
|
||
|
||
|
||
tests['csstransforms3d'] = function() {
|
||
|
||
var ret = !!test_props([ '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 = testMediaQuery('@media ('+prefixes.join('transform-3d),(')+'modernizr)');
|
||
}
|
||
return ret;
|
||
};
|
||
|
||
|
||
tests['csstransitions'] = function() {
|
||
return test_props_all( 'transitionProperty' );
|
||
};
|
||
|
||
|
||
// @font-face detection routine by Diego Perini
|
||
// http://javascript.nwbox.com/CSSSupport/
|
||
tests['fontface'] = function(){
|
||
|
||
var
|
||
sheet, bool,
|
||
head = docHead || docElement,
|
||
style = document.createElement("style"),
|
||
impl = document.implementation || { hasFeature: function() { return false; } };
|
||
|
||
style.type = 'text/css';
|
||
head.insertBefore(style, head.firstChild);
|
||
sheet = style.sheet || style.styleSheet;
|
||
|
||
var supportAtRule = impl.hasFeature('CSS2', '') ?
|
||
function(rule) {
|
||
if (!(sheet && rule)) return false;
|
||
var result = false;
|
||
try {
|
||
sheet.insertRule(rule, 0);
|
||
result = (/src/i).test(sheet.cssRules[0].cssText);
|
||
sheet.deleteRule(sheet.cssRules.length - 1);
|
||
} catch(e) { }
|
||
return result;
|
||
} :
|
||
function(rule) {
|
||
if (!(sheet && rule)) return false;
|
||
sheet.cssText = rule;
|
||
|
||
return sheet.cssText.length !== 0 && (/src/i).test(sheet.cssText) &&
|
||
sheet.cssText
|
||
.replace(/\r+|\n+/g, '')
|
||
.indexOf(rule.split(' ')[0]) === 0;
|
||
};
|
||
|
||
bool = supportAtRule('@font-face { font-family: "font"; src: url(data:,); }');
|
||
head.removeChild(style);
|
||
return bool;
|
||
};
|
||
|
||
|
||
// These tests evaluate support of the video/audio elements, as well as
|
||
// testing what types of content they support.
|
||
//
|
||
// We're using the Boolean constructor here, so that we can extend the value
|
||
// e.g. Modernizr.video // true
|
||
// Modernizr.video.ogg // 'probably'
|
||
//
|
||
// Codec values from : 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 = !!elem.canPlayType;
|
||
|
||
if (bool){
|
||
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"');
|
||
}
|
||
return bool;
|
||
};
|
||
|
||
tests['audio'] = function() {
|
||
var elem = document.createElement('audio'),
|
||
bool = !!elem.canPlayType;
|
||
|
||
if (bool){
|
||
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;');
|
||
}
|
||
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;
|
||
};
|
||
|
||
tests['inlinesvg'] = function() {
|
||
var div = document.createElement('div');
|
||
div.innerHTML = '<svg/>';
|
||
return (div.firstChild && div.firstChild.namespaceURI) == ns.svg;
|
||
};
|
||
|
||
// Thanks to F1lt3r and lucideer
|
||
// http://github.com/Modernizr/Modernizr/issues#issue/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
|
||
ret['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/
|
||
ret['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();
|
||
ret[ featurename ] = tests[ feature ]();
|
||
|
||
classes.push( ( ret[ featurename ] ? '' : 'no-' ) + featurename );
|
||
}
|
||
}
|
||
|
||
// input tests need to run.
|
||
if (!ret.input) webforms();
|
||
|
||
|
||
|
||
// Per 1.6: deprecated API is still accesible for now:
|
||
ret.crosswindowmessaging = ret.postmessage;
|
||
ret.historymanagement = ret.history;
|
||
|
||
|
||
|
||
/**
|
||
* 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
|
||
*/
|
||
ret.addTest = function (feature, test) {
|
||
feature = feature.toLowerCase();
|
||
|
||
if (ret[ feature ]) {
|
||
return; // quit if you're trying to overwrite an existing test
|
||
}
|
||
test = !!(test());
|
||
docElement.className += ' ' + (test ? '' : 'no-') + feature;
|
||
ret[ feature ] = test;
|
||
return ret; // allow chaining.
|
||
};
|
||
|
||
/**
|
||
* Reset m.style.cssText to nothing to reduce memory footprint.
|
||
*/
|
||
set_css( '' );
|
||
modElem = inputElem = null;
|
||
|
||
//>>BEGIN IEPP
|
||
// Enable HTML 5 elements for styling in IE.
|
||
// fyi: jscript version does not reflect trident version
|
||
// therefore ie9 in ie7 mode will still have a jScript v.9
|
||
if ( enableHTML5 && window.attachEvent && (function(){ var elem = document.createElement("div");
|
||
elem.innerHTML = "<elem></elem>";
|
||
return elem.childNodes.length !== 1; })()) {
|
||
// iepp v1.6.2 by @jon_neal : code.google.com/p/ie-print-protector
|
||
(function(win, doc) {
|
||
var elems = 'abbr|article|aside|audio|canvas|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'),
|
||
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'),
|
||
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]);
|
||
}
|
||
function getCSS(styleSheetList, mediaType) {
|
||
var a = -1,
|
||
len = styleSheetList.length,
|
||
styleSheet,
|
||
cssTextArr = [];
|
||
while (++a < len) {
|
||
styleSheet = styleSheetList[a];
|
||
// Get css from all non-screen stylesheets and their imports
|
||
if ((mediaType = styleSheet.media || mediaType) != 'screen') cssTextArr.push(getCSS(styleSheet.imports, mediaType), styleSheet.cssText);
|
||
}
|
||
return cssTextArr.join('');
|
||
}
|
||
// Shim the document and iepp fragment
|
||
shim(doc);
|
||
shim(docFrag);
|
||
// Add iepp custom print style element
|
||
head.insertBefore(styleElem, head.firstChild);
|
||
styleElem.media = 'print';
|
||
win.attachEvent(
|
||
'onbeforeprint',
|
||
function() {
|
||
var a = -1,
|
||
cssText = getCSS(doc.styleSheets, 'all'),
|
||
cssTextArr = [],
|
||
rule;
|
||
body = body || doc.body;
|
||
// Get only rules which reference HTML5 elements by name
|
||
while ((rule = ruleRegExp.exec(cssText)) != null)
|
||
// Replace all html5 element references with iepp substitute classnames
|
||
cssTextArr.push((rule[1]+rule[2]+rule[3]).replace(elemRegExp, '$1.iepp_$2')+rule[4]);
|
||
// Write iepp custom print CSS
|
||
styleElem.styleSheet.cssText = cssTextArr.join('\n');
|
||
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;
|
||
// 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');
|
||
}
|
||
);
|
||
win.attachEvent(
|
||
'onafterprint',
|
||
function() {
|
||
// Undo everything done in onbeforeprint
|
||
bodyElem.innerHTML = '';
|
||
html.removeChild(bodyElem);
|
||
html.appendChild(body);
|
||
styleElem.styleSheet.cssText = '';
|
||
}
|
||
);
|
||
})(window, document);
|
||
}
|
||
//>>END IEPP
|
||
|
||
// Assign private properties to the return object with prefix
|
||
ret._enableHTML5 = enableHTML5;
|
||
ret._version = version;
|
||
|
||
// Remove "no-js" class from <html> element, if it exists:
|
||
docElement.className = docElement.className.replace(/\bno-js\b/,'')
|
||
+ ' js '
|
||
|
||
// Add the new classes to the <html> element.
|
||
+ classes.join( ' ' );
|
||
|
||
return ret;
|
||
|
||
})(this,this.document); |