pbd-dist-one
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JavaScript
/*!
* Modernizr v1.6
* http://www.modernizr.com
*
* Developed by:
* - Faruk Ates http://farukat.es/
* - Paul Irish http://paulirish.com/
*
* Copyright (c) 2009-2010
* Dual-licensed under the BSD or MIT licenses.
* http://www.modernizr.com/license/
*/
/*
* 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) 2009-2010 Faruk Ates.
* @contributor Ben Alman
*/
window.Modernizr = (function(window,doc,undefined){
var version = '1.6',
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 = doc.documentElement,
/**
* Create our "modernizr" element that we do most feature tests on.
*/
mod = 'modernizr',
m = doc.createElement( mod ),
m_style = m.style,
/**
* Create the input element for various Web Forms feature tests.
*/
f = doc.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 = doc.createElement('div'),
ret;
st.textContent = mq + '{#modernizr{height:3px}}';
(doc.head || doc.getElementsByTagName('head')[0]).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 = typeof element[eventName] == 'function';
// If property was created, "remove it" (by setting value to `undefined`)
if (typeof 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 (typeof _hasOwnProperty !== 'undefined' && typeof _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) && typeof 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 || '' ));
}
/**
* 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], m ) ) ) {
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 = doc.createElement('div'),
elem = doc.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 = doc.createElement( 'canvas' );
return !!(elem.getContext && elem.getContext('2d'));
};
tests['canvastext'] = function() {
return !!(ret['canvas'] && typeof doc.createElement( 'canvas' ).getContext('2d').fillText == 'function');
};
tests['webgl'] = function(){
var elem = doc.createElement( 'canvas' );
try {
if (elem.getContext('webgl')){ return true; }
} catch(e){ }
try {
if (elem.getContext('experimental-webgl')){ return true; }
} catch(e){ }
return false;
};
/*
* 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('drag') &&
isEventSupported('dragstart') &&
isEventSupported('dragenter') &&
isEventSupported('dragover') &&
isEventSupported('dragleave') &&
isEventSupported('dragend') &&
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.
// The legacy set_css_all calls will remain in the source
// (however, commented) for clarity, yet functionally they are
// no longer needed.
tests['backgroundsize'] = function() {
return test_props_all( 'backgroundSize' );
};
tests['borderimage'] = function() {
// set_css_all( 'border-image:url(m.png) 1 1 stretch' );
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() {
// set_css_all( 'border-radius:10px' );
return test_props_all( 'borderRadius', '', function( prop ) {
return contains( prop, 'orderRadius' );
});
};
tests['boxshadow'] = function() {
// set_css_all( 'box-shadow:#000 1px 1px 3px' );
return test_props_all( 'boxShadow' );
};
// Note: FF3.0 will false positive on this test
tests['textshadow'] = function(){
return doc.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:.5' );
return contains( m_style.opacity, '0.5' );
};
tests['cssanimations'] = function() {
// set_css_all( 'animation:"animate" 2s ease 2', 'position:relative' );
return test_props_all( 'animationName' );
};
tests['csscolumns'] = function() {
// set_css_all( 'column-count:3' );
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() {
// set_css_all( 'box-reflect:right 1px' );
return test_props_all( 'boxReflect' );
};
tests['csstransforms'] = function() {
// set_css_all( 'transform:rotate(3deg)' );
return !!test_props([ 'transformProperty', 'WebkitTransform', 'MozTransform', 'OTransform', 'msTransform' ]);
};
tests['csstransforms3d'] = function() {
// set_css_all( 'perspective:500' );
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 (yet?).
// 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){
// 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() {
// set_css_all( 'transition:all .5s linear' );
return test_props_all( 'transitionProperty' );
};
// @font-face detection routine by Diego Perini
// http://javascript.nwbox.com/CSSSupport/
tests['fontface'] = function(){
var
sheet,
head = doc.head || doc.getElementsByTagName('head')[0] || docElement,
style = doc.createElement("style"),
impl = doc.implementation || { hasFeature: function() { return false; } };
style.type = 'text/css';
head.insertBefore(style, head.firstChild);
sheet = style.sheet || style.styleSheet;
// removing it crashes IE browsers
//head.removeChild(style);
var supportAtRule = impl.hasFeature('CSS2', '') ?
function(rule) {
if (!(sheet && rule)) return false;
var result = false;
try {
sheet.insertRule(rule, 0);
result = !(/unknown/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 && !(/unknown/i).test(sheet.cssText) &&
sheet.cssText
.replace(/\r+|\n+/g, '')
.indexOf(rule.split(' ')[0]) === 0;
};
// DEPRECATED - allow for a callback
ret._fontfaceready = function(fn){
fn(ret.fontface);
};
return supportAtRule('@font-face { font-family: "font"; src: "font.ttf"; }');
};
// 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 = doc.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 = doc.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;
};
// Both localStorage and sessionStorage are
// tested via the `in` operator because otherwise Firefox will
// throw an error: https://bugzilla.mozilla.org/show_bug.cgi?id=365772
// if cookies are disabled
// They require try/catch because of possible firefox configuration:
// http://github.com/Modernizr/Modernizr/issues#issue/92
// FWIW miller device resolves to [object Storage] in all supporting browsers
// except for IE who does [object Object]
// IE8 Compat mode supports these features completely:
// http://www.quirksmode.org/dom/html5.html
tests['localstorage'] = function() {
try {
return ('localStorage' in window) && window.localStorage !== null;
} catch(e) {
return false;
}
};
tests['sessionstorage'] = function() {
try {
return ('sessionStorage' in window) && window.sessionStorage !== null;
} catch(e){
return false;
}
};
tests['webWorkers'] = function () {
return !!window.Worker;
};
tests['applicationcache'] = function() {
return !!window.applicationCache;
};
// Thanks to Erik Dahlstrom
tests['svg'] = function(){
return !!doc.createElementNS && !!doc.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 !!doc.createElementNS && /SVG/.test(tostring.call(doc.createElementNS(ns.svg,'animate')));
};
tests['svgclippaths'] = function(){
// Possibly returns a false positive in Safari 3.2?
return !!doc.createElementNS && /SVG/.test(tostring.call(doc.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 f);
}
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, len=props.length ; i < len ; i++) {
f.setAttribute('type', props[i]);
bool = f.type !== 'text';
// Chrome likes to falsely purport support, so we feed it a textual value;
// if that doesnt succeed then we know there's a custom UI
if (bool){
f.value = smile;
if (/^range$/.test(f.type) && f.style.WebkitAppearance !== undefined){
docElement.appendChild(f);
var defaultView = doc.defaultView;
// Safari 2-4 allows the smiley as a value, despite making a slider
bool = defaultView.getComputedStyle &&
defaultView.getComputedStyle(f, null).WebkitAppearance !== 'textfield' &&
// Mobile android web browser has false positive, so must
// check the height to see if the widget is actually there.
(f.offsetHeight !== 0);
docElement.removeChild(f);
} else if (/^(search|tel)$/.test(f.type)){
// 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(f.type)) {
// Real url and email support comes with prebaked validation.
bool = f.checkValidity && f.checkValidity() === false;
} else {
// If the upgraded input compontent rejects the :) text, we got a winner
bool = f.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( '' );
m = f = null;
// 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 = doc.createElement("div");
elem.innerHTML = "<elem></elem>";
return elem.childNodes.length !== 1; })()) {
// iepp v1.6 by @jon_neal : code.google.com/p/ie-print-protector
(function(f,l){var j="abbr|article|aside|audio|canvas|details|figcaption|figure|footer|header|hgroup|mark|meter|nav|output|progress|section|summary|time|video",n=j.split("|"),k=n.length,g=new RegExp("<(/*)("+j+")","gi"),h=new RegExp("\\b("+j+")\\b(?!.*[;}])","gi"),m=l.createDocumentFragment(),d=l.documentElement,i=d.firstChild,b=l.createElement("style"),e=l.createElement("body");b.media="all";function c(p){var o=-1;while(++o<k){p.createElement(n[o])}}c(l);c(m);function a(t,s){var r=t.length,q=-1,o,p=[];while(++q<r){o=t[q];s=o.media||s;p.push(a(o.imports,s));p.push(o.cssText)}return p.join("")}f.attachEvent("onbeforeprint",function(){var r=-1;while(++r<k){var o=l.getElementsByTagName(n[r]),q=o.length,p=-1;while(++p<q){if(o[p].className.indexOf("iepp_")<0){o[p].className+=" iepp_"+n[r]}}}i.insertBefore(b,i.firstChild);b.styleSheet.cssText=a(l.styleSheets,"all").replace(h,".iepp_$1");m.appendChild(l.body);d.appendChild(e);e.innerHTML=m.firstChild.innerHTML.replace(g,"<$1bdo")});f.attachEvent("onafterprint",function(){e.innerHTML="";d.removeChild(e);i.removeChild(b);d.appendChild(m.firstChild)})})(this,document);
}
// 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.
docElement.className += ' ' + classes.join( ' ' );
return ret;
})(this,this.document);