Posted By

doowron on 10/26/11


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design modernizr responsive adaptive


Versions (?)

Modernizr.js v2.0.6


 / Published in: JavaScript
 

URL: http://www.modernizr.com

  1. /*!
  2.  * Modernizr v2.0.6
  3.  * http://www.modernizr.com
  4.  *
  5.  * Copyright (c) 2009-2011 Faruk Ates, Paul Irish, Alex Sexton
  6.  * Dual-licensed under the BSD or MIT licenses: www.modernizr.com/license/
  7.  */
  8.  
  9. /*
  10.  * Modernizr tests which native CSS3 and HTML5 features are available in
  11.  * the current UA and makes the results available to you in two ways:
  12.  * as properties on a global Modernizr object, and as classes on the
  13.  * <html> element. This information allows you to progressively enhance
  14.  * your pages with a granular level of control over the experience.
  15.  *
  16.  * Modernizr has an optional (not included) conditional resource loader
  17.  * called Modernizr.load(), based on Yepnope.js (yepnopejs.com).
  18.  * To get a build that includes Modernizr.load(), as well as choosing
  19.  * which tests to include, go to www.modernizr.com/download/
  20.  *
  21.  * Authors Faruk Ates, Paul Irish, Alex Sexton,
  22.  * Contributors Ryan Seddon, Ben Alman
  23.  */
  24.  
  25. window.Modernizr = (function( window, document, undefined ) {
  26.  
  27. var version = '2.0.6',
  28.  
  29. Modernizr = {},
  30.  
  31. // option for enabling the HTML classes to be added
  32. enableClasses = true,
  33.  
  34. docElement = document.documentElement,
  35. docHead = document.head || document.getElementsByTagName('head')[0],
  36.  
  37. /**
  38.   * Create our "modernizr" element that we do most feature tests on.
  39.   */
  40. mod = 'modernizr',
  41. modElem = document.createElement(mod),
  42. mStyle = modElem.style,
  43.  
  44. /**
  45.   * Create the input element for various Web Forms feature tests.
  46.   */
  47. inputElem = document.createElement('input'),
  48.  
  49. smile = ':)',
  50.  
  51. toString = Object.prototype.toString,
  52.  
  53. // List of property values to set for css tests. See ticket #21
  54. prefixes = ' -webkit- -moz- -o- -ms- -khtml- '.split(' '),
  55.  
  56. // Following spec is to expose vendor-specific style properties as:
  57. // elem.style.WebkitBorderRadius
  58. // and the following would be incorrect:
  59. // elem.style.webkitBorderRadius
  60.  
  61. // Webkit ghosts their properties in lowercase but Opera & Moz do not.
  62. // Microsoft foregoes prefixes entirely <= IE8, but appears to
  63. // use a lowercase `ms` instead of the correct `Ms` in IE9
  64.  
  65. // More here: http://github.com/Modernizr/Modernizr/issues/issue/21
  66. domPrefixes = 'Webkit Moz O ms Khtml'.split(' '),
  67.  
  68. ns = {'svg': 'http://www.w3.org/2000/svg'},
  69.  
  70. tests = {},
  71. inputs = {},
  72. attrs = {},
  73.  
  74. classes = [],
  75.  
  76. featureName, // used in testing loop
  77.  
  78.  
  79. // Inject element with style element and some CSS rules
  80. injectElementWithStyles = function( rule, callback, nodes, testnames ) {
  81.  
  82. var style, ret, node,
  83. div = document.createElement('div');
  84.  
  85. if ( parseInt(nodes, 10) ) {
  86. // In order not to give false positives we create a node for each test
  87. // This also allows the method to scale for unspecified uses
  88. while ( nodes-- ) {
  89. node = document.createElement('div');
  90. node.id = testnames ? testnames[nodes] : mod + (nodes + 1);
  91. div.appendChild(node);
  92. }
  93. }
  94.  
  95. // <style> elements in IE6-9 are considered 'NoScope' elements and therefore will be removed
  96. // when injected with innerHTML. To get around this you need to prepend the 'NoScope' element
  97. // with a 'scoped' element, in our case the soft-hyphen entity as it won't mess with our measurements.
  98. // http://msdn.microsoft.com/en-us/library/ms533897%28VS.85%29.aspx
  99. style = ['&shy;', '<style>', rule, '</style>'].join('');
  100. div.id = mod;
  101. div.innerHTML += style;
  102. docElement.appendChild(div);
  103.  
  104. ret = callback(div, rule);
  105. div.parentNode.removeChild(div);
  106.  
  107. return !!ret;
  108.  
  109. },
  110.  
  111.  
  112. // adapted from matchMedia polyfill
  113. // by Scott Jehl and Paul Irish
  114. // gist.github.com/786768
  115. testMediaQuery = function( mq ) {
  116.  
  117. if ( window.matchMedia ) {
  118. return matchMedia(mq).matches;
  119. }
  120.  
  121. var bool;
  122.  
  123. injectElementWithStyles('@media ' + mq + ' { #' + mod + ' { position: absolute; } }', function( node ) {
  124. bool = (window.getComputedStyle ?
  125. getComputedStyle(node, null) :
  126. node.currentStyle)['position'] == 'absolute';
  127. });
  128.  
  129. return bool;
  130.  
  131. },
  132.  
  133.  
  134. /**
  135.   * isEventSupported determines if a given element supports the given event
  136.   * function from http://yura.thinkweb2.com/isEventSupported/
  137.   */
  138. isEventSupported = (function() {
  139.  
  140. var TAGNAMES = {
  141. 'select': 'input', 'change': 'input',
  142. 'submit': 'form', 'reset': 'form',
  143. 'error': 'img', 'load': 'img', 'abort': 'img'
  144. };
  145.  
  146. function isEventSupported( eventName, element ) {
  147.  
  148. element = element || document.createElement(TAGNAMES[eventName] || 'div');
  149. eventName = 'on' + eventName;
  150.  
  151. // When using `setAttribute`, IE skips "unload", WebKit skips "unload" and "resize", whereas `in` "catches" those
  152. var isSupported = eventName in element;
  153.  
  154. if ( !isSupported ) {
  155. // If it has no `setAttribute` (i.e. doesn't implement Node interface), try generic element
  156. if ( !element.setAttribute ) {
  157. element = document.createElement('div');
  158. }
  159. if ( element.setAttribute && element.removeAttribute ) {
  160. element.setAttribute(eventName, '');
  161. isSupported = is(element[eventName], 'function');
  162.  
  163. // If property was created, "remove it" (by setting value to `undefined`)
  164. if ( !is(element[eventName], undefined) ) {
  165. element[eventName] = undefined;
  166. }
  167. element.removeAttribute(eventName);
  168. }
  169. }
  170.  
  171. element = null;
  172. return isSupported;
  173. }
  174. return isEventSupported;
  175. })();
  176.  
  177. // hasOwnProperty shim by kangax needed for Safari 2.0 support
  178. var _hasOwnProperty = ({}).hasOwnProperty, hasOwnProperty;
  179. if ( !is(_hasOwnProperty, undefined) && !is(_hasOwnProperty.call, undefined) ) {
  180. hasOwnProperty = function (object, property) {
  181. return _hasOwnProperty.call(object, property);
  182. };
  183. }
  184. else {
  185. hasOwnProperty = function (object, property) { /* yes, this can give false positives/negatives, but most of the time we don't care about those */
  186. return ((property in object) && is(object.constructor.prototype[property], undefined));
  187. };
  188. }
  189.  
  190. /**
  191.   * setCss applies given styles to the Modernizr DOM node.
  192.   */
  193. function setCss( str ) {
  194. mStyle.cssText = str;
  195. }
  196.  
  197. /**
  198.   * setCssAll extrapolates all vendor-specific css strings.
  199.   */
  200. function setCssAll( str1, str2 ) {
  201. return setCss(prefixes.join(str1 + ';') + ( str2 || '' ));
  202. }
  203.  
  204. /**
  205.   * is returns a boolean for if typeof obj is exactly type.
  206.   */
  207. function is( obj, type ) {
  208. return typeof obj === type;
  209. }
  210.  
  211. /**
  212.   * contains returns a boolean for if substr is found within str.
  213.   */
  214. function contains( str, substr ) {
  215. return !!~('' + str).indexOf(substr);
  216. }
  217.  
  218. /**
  219.   * testProps is a generic CSS / DOM property test; if a browser supports
  220.   * a certain property, it won't return undefined for it.
  221.   * A supported CSS property returns empty string when its not yet set.
  222.   */
  223. function testProps( props, prefixed ) {
  224. for ( var i in props ) {
  225. if ( mStyle[ props[i] ] !== undefined ) {
  226. return prefixed == 'pfx' ? props[i] : true;
  227. }
  228. }
  229. return false;
  230. }
  231.  
  232. /**
  233.   * testPropsAll tests a list of DOM properties we want to check against.
  234.   * We specify literally ALL possible (known and/or likely) properties on
  235.   * the element including the non-vendor prefixed one, for forward-
  236.   * compatibility.
  237.   */
  238. function testPropsAll( prop, prefixed ) {
  239.  
  240. var ucProp = prop.charAt(0).toUpperCase() + prop.substr(1),
  241. props = (prop + ' ' + domPrefixes.join(ucProp + ' ') + ucProp).split(' ');
  242.  
  243. return testProps(props, prefixed);
  244. }
  245.  
  246. /**
  247.   * testBundle tests a list of CSS features that require element and style injection.
  248.   * By bundling them together we can reduce the need to touch the DOM multiple times.
  249.   */
  250. /*>>testBundle*/
  251. var testBundle = (function( styles, tests ) {
  252. var style = styles.join(''),
  253. len = tests.length;
  254.  
  255. injectElementWithStyles(style, function( node, rule ) {
  256. var style = document.styleSheets[document.styleSheets.length - 1],
  257. // IE8 will bork if you create a custom build that excludes both fontface and generatedcontent tests.
  258. // So we check for cssRules and that there is a rule available
  259. // More here: https://github.com/Modernizr/Modernizr/issues/288 & https://github.com/Modernizr/Modernizr/issues/293
  260. cssText = style.cssRules && style.cssRules[0] ? style.cssRules[0].cssText : style.cssText || "",
  261. children = node.childNodes, hash = {};
  262.  
  263. while ( len-- ) {
  264. hash[children[len].id] = children[len];
  265. }
  266.  
  267. /*>>touch*/ Modernizr['touch'] = ('ontouchstart' in window) || hash['touch'].offsetTop === 9; /*>>touch*/
  268. /*>>csstransforms3d*/ Modernizr['csstransforms3d'] = hash['csstransforms3d'].offsetLeft === 9; /*>>csstransforms3d*/
  269. /*>>generatedcontent*/Modernizr['generatedcontent'] = hash['generatedcontent'].offsetHeight >= 1; /*>>generatedcontent*/
  270. /*>>fontface*/ Modernizr['fontface'] = /src/i.test(cssText) &&
  271. cssText.indexOf(rule.split(' ')[0]) === 0; /*>>fontface*/
  272. }, len, tests);
  273.  
  274. })([
  275. // Pass in styles to be injected into document
  276. /*>>fontface*/ '@font-face {font-family:"font";src:url("https://")}' /*>>fontface*/
  277.  
  278. /*>>touch*/ ,['@media (',prefixes.join('touch-enabled),('),mod,')',
  279. '{#touch{top:9px;position:absolute}}'].join('') /*>>touch*/
  280.  
  281. /*>>csstransforms3d*/ ,['@media (',prefixes.join('transform-3d),('),mod,')',
  282. '{#csstransforms3d{left:9px;position:absolute}}'].join('')/*>>csstransforms3d*/
  283.  
  284. /*>>generatedcontent*/,['#generatedcontent:after{content:"',smile,'";visibility:hidden}'].join('') /*>>generatedcontent*/
  285. ],
  286. [
  287. /*>>fontface*/ 'fontface' /*>>fontface*/
  288. /*>>touch*/ ,'touch' /*>>touch*/
  289. /*>>csstransforms3d*/ ,'csstransforms3d' /*>>csstransforms3d*/
  290. /*>>generatedcontent*/,'generatedcontent' /*>>generatedcontent*/
  291.  
  292. ]);/*>>testBundle*/
  293.  
  294.  
  295. /**
  296.   * Tests
  297.   * -----
  298.   */
  299.  
  300. tests['flexbox'] = function() {
  301. /**
  302.   * setPrefixedValueCSS sets the property of a specified element
  303.   * adding vendor prefixes to the VALUE of the property.
  304.   * @param {Element} element
  305.   * @param {string} property The property name. This will not be prefixed.
  306.   * @param {string} value The value of the property. This WILL be prefixed.
  307.   * @param {string=} extra Additional CSS to append unmodified to the end of
  308.   * the CSS string.
  309.   */
  310. function setPrefixedValueCSS( element, property, value, extra ) {
  311. property += ':';
  312. element.style.cssText = (property + prefixes.join(value + ';' + property)).slice(0, -property.length) + (extra || '');
  313. }
  314.  
  315. /**
  316.   * setPrefixedPropertyCSS sets the property of a specified element
  317.   * adding vendor prefixes to the NAME of the property.
  318.   * @param {Element} element
  319.   * @param {string} property The property name. This WILL be prefixed.
  320.   * @param {string} value The value of the property. This will not be prefixed.
  321.   * @param {string=} extra Additional CSS to append unmodified to the end of
  322.   * the CSS string.
  323.   */
  324. function setPrefixedPropertyCSS( element, property, value, extra ) {
  325. element.style.cssText = prefixes.join(property + ':' + value + ';') + (extra || '');
  326. }
  327.  
  328. var c = document.createElement('div'),
  329. elem = document.createElement('div');
  330.  
  331. setPrefixedValueCSS(c, 'display', 'box', 'width:42px;padding:0;');
  332. setPrefixedPropertyCSS(elem, 'box-flex', '1', 'width:10px;');
  333.  
  334. c.appendChild(elem);
  335. docElement.appendChild(c);
  336.  
  337. var ret = elem.offsetWidth === 42;
  338.  
  339. c.removeChild(elem);
  340. docElement.removeChild(c);
  341.  
  342. return ret;
  343. };
  344.  
  345. // On the S60 and BB Storm, getContext exists, but always returns undefined
  346. // http://github.com/Modernizr/Modernizr/issues/issue/97/
  347.  
  348. tests['canvas'] = function() {
  349. var elem = document.createElement('canvas');
  350. return !!(elem.getContext && elem.getContext('2d'));
  351. };
  352.  
  353. tests['canvastext'] = function() {
  354. return !!(Modernizr['canvas'] && is(document.createElement('canvas').getContext('2d').fillText, 'function'));
  355. };
  356.  
  357. // This WebGL test may false positive.
  358. // But really it's quite impossible to know whether webgl will succeed until after you create the context.
  359. // You might have hardware that can support a 100x100 webgl canvas, but will not support a 1000x1000 webgl
  360. // canvas. So this feature inference is weak, but intentionally so.
  361.  
  362. // It is known to false positive in FF4 with certain hardware and the iPad 2.
  363.  
  364. tests['webgl'] = function() {
  365. return !!window.WebGLRenderingContext;
  366. };
  367.  
  368. /*
  369.   * The Modernizr.touch test only indicates if the browser supports
  370.   * touch events, which does not necessarily reflect a touchscreen
  371.   * device, as evidenced by tablets running Windows 7 or, alas,
  372.   * the Palm Pre / WebOS (touch) phones.
  373.   *
  374.   * Additionally, Chrome (desktop) used to lie about its support on this,
  375.   * but that has since been rectified: http://crbug.com/36415
  376.   *
  377.   * We also test for Firefox 4 Multitouch Support.
  378.   *
  379.   * For more info, see: http://modernizr.github.com/Modernizr/touch.html
  380.   */
  381.  
  382. tests['touch'] = function() {
  383. return Modernizr['touch'];
  384. };
  385.  
  386. /**
  387.   * geolocation tests for the new Geolocation API specification.
  388.   * This test is a standards compliant-only test; for more complete
  389.   * testing, including a Google Gears fallback, please see:
  390.   * http://code.google.com/p/geo-location-javascript/
  391.   * or view a fallback solution using google's geo API:
  392.   * http://gist.github.com/366184
  393.   */
  394. tests['geolocation'] = function() {
  395. return !!navigator.geolocation;
  396. };
  397.  
  398. // Per 1.6:
  399. // This used to be Modernizr.crosswindowmessaging but the longer
  400. // name has been deprecated in favor of a shorter and property-matching one.
  401. // The old API is still available in 1.6, but as of 2.0 will throw a warning,
  402. // and in the first release thereafter disappear entirely.
  403. tests['postmessage'] = function() {
  404. return !!window.postMessage;
  405. };
  406.  
  407. // Web SQL database detection is tricky:
  408.  
  409. // In chrome incognito mode, openDatabase is truthy, but using it will
  410. // throw an exception: http://crbug.com/42380
  411. // We can create a dummy database, but there is no way to delete it afterwards.
  412.  
  413. // Meanwhile, Safari users can get prompted on any database creation.
  414. // If they do, any page with Modernizr will give them a prompt:
  415. // http://github.com/Modernizr/Modernizr/issues/closed#issue/113
  416.  
  417. // We have chosen to allow the Chrome incognito false positive, so that Modernizr
  418. // doesn't litter the web with these test databases. As a developer, you'll have
  419. // to account for this gotcha yourself.
  420. tests['websqldatabase'] = function() {
  421. var result = !!window.openDatabase;
  422. /* if (result){
  423.   try {
  424.   result = !!openDatabase( mod + "testdb", "1.0", mod + "testdb", 2e4);
  425.   } catch(e) {
  426.   }
  427.   } */
  428. return result;
  429. };
  430.  
  431. // Vendors had inconsistent prefixing with the experimental Indexed DB:
  432. // - Webkit's implementation is accessible through webkitIndexedDB
  433. // - Firefox shipped moz_indexedDB before FF4b9, but since then has been mozIndexedDB
  434. // For speed, we don't test the legacy (and beta-only) indexedDB
  435. tests['indexedDB'] = function() {
  436. for ( var i = -1, len = domPrefixes.length; ++i < len; ){
  437. if ( window[domPrefixes[i].toLowerCase() + 'IndexedDB'] ){
  438. return true;
  439. }
  440. }
  441. return !!window.indexedDB;
  442. };
  443.  
  444. // documentMode logic from YUI to filter out IE8 Compat Mode
  445. // which false positives.
  446. tests['hashchange'] = function() {
  447. return isEventSupported('hashchange', window) && (document.documentMode === undefined || document.documentMode > 7);
  448. };
  449.  
  450. // Per 1.6:
  451. // This used to be Modernizr.historymanagement but the longer
  452. // name has been deprecated in favor of a shorter and property-matching one.
  453. // The old API is still available in 1.6, but as of 2.0 will throw a warning,
  454. // and in the first release thereafter disappear entirely.
  455. tests['history'] = function() {
  456. return !!(window.history && history.pushState);
  457. };
  458.  
  459. tests['draganddrop'] = function() {
  460. return isEventSupported('dragstart') && isEventSupported('drop');
  461. };
  462.  
  463. // Mozilla is targeting to land MozWebSocket for FF6
  464. // bugzil.la/659324
  465. tests['websockets'] = function() {
  466. for ( var i = -1, len = domPrefixes.length; ++i < len; ){
  467. if ( window[domPrefixes[i] + 'WebSocket'] ){
  468. return true;
  469. }
  470. }
  471. return 'WebSocket' in window;
  472. };
  473.  
  474.  
  475. // http://css-tricks.com/rgba-browser-support/
  476. tests['rgba'] = function() {
  477. // Set an rgba() color and check the returned value
  478.  
  479. setCss('background-color:rgba(150,255,150,.5)');
  480.  
  481. return contains(mStyle.backgroundColor, 'rgba');
  482. };
  483.  
  484. tests['hsla'] = function() {
  485. // Same as rgba(), in fact, browsers re-map hsla() to rgba() internally,
  486. // except IE9 who retains it as hsla
  487.  
  488. setCss('background-color:hsla(120,40%,100%,.5)');
  489.  
  490. return contains(mStyle.backgroundColor, 'rgba') || contains(mStyle.backgroundColor, 'hsla');
  491. };
  492.  
  493. tests['multiplebgs'] = function() {
  494. // Setting multiple images AND a color on the background shorthand property
  495. // and then querying the style.background property value for the number of
  496. // occurrences of "url(" is a reliable method for detecting ACTUAL support for this!
  497.  
  498. setCss('background:url(https://),url(https://),red url(https://)');
  499.  
  500. // If the UA supports multiple backgrounds, there should be three occurrences
  501. // of the string "url(" in the return value for elemStyle.background
  502.  
  503. return /(url\s*\(.*?){3}/.test(mStyle.background);
  504. };
  505.  
  506.  
  507. // In testing support for a given CSS property, it's legit to test:
  508. // `elem.style[styleName] !== undefined`
  509. // If the property is supported it will return an empty string,
  510. // if unsupported it will return undefined.
  511.  
  512. // We'll take advantage of this quick test and skip setting a style
  513. // on our modernizr element, but instead just testing undefined vs
  514. // empty string.
  515.  
  516.  
  517. tests['backgroundsize'] = function() {
  518. return testPropsAll('backgroundSize');
  519. };
  520.  
  521. tests['borderimage'] = function() {
  522. return testPropsAll('borderImage');
  523. };
  524.  
  525.  
  526. // Super comprehensive table about all the unique implementations of
  527. // border-radius: http://muddledramblings.com/table-of-css3-border-radius-compliance
  528.  
  529. tests['borderradius'] = function() {
  530. return testPropsAll('borderRadius');
  531. };
  532.  
  533. // WebOS unfortunately false positives on this test.
  534. tests['boxshadow'] = function() {
  535. return testPropsAll('boxShadow');
  536. };
  537.  
  538. // FF3.0 will false positive on this test
  539. tests['textshadow'] = function() {
  540. return document.createElement('div').style.textShadow === '';
  541. };
  542.  
  543.  
  544. tests['opacity'] = function() {
  545. // Browsers that actually have CSS Opacity implemented have done so
  546. // according to spec, which means their return values are within the
  547. // range of [0.0,1.0] - including the leading zero.
  548.  
  549. setCssAll('opacity:.55');
  550.  
  551. // The non-literal . in this regex is intentional:
  552. // German Chrome returns this value as 0,55
  553. // https://github.com/Modernizr/Modernizr/issues/#issue/59/comment/516632
  554. return /^0.55$/.test(mStyle.opacity);
  555. };
  556.  
  557.  
  558. tests['cssanimations'] = function() {
  559. return testPropsAll('animationName');
  560. };
  561.  
  562.  
  563. tests['csscolumns'] = function() {
  564. return testPropsAll('columnCount');
  565. };
  566.  
  567.  
  568. tests['cssgradients'] = function() {
  569. /**
  570.   * For CSS Gradients syntax, please see:
  571.   * http://webkit.org/blog/175/introducing-css-gradients/
  572.   * https://developer.mozilla.org/en/CSS/-moz-linear-gradient
  573.   * https://developer.mozilla.org/en/CSS/-moz-radial-gradient
  574.   * http://dev.w3.org/csswg/css3-images/#gradients-
  575.   */
  576.  
  577. var str1 = 'background-image:',
  578. str2 = 'gradient(linear,left top,right bottom,from(#9f9),to(white));',
  579. str3 = 'linear-gradient(left top,#9f9, white);';
  580.  
  581. setCss(
  582. (str1 + prefixes.join(str2 + str1) + prefixes.join(str3 + str1)).slice(0, -str1.length)
  583. );
  584.  
  585. return contains(mStyle.backgroundImage, 'gradient');
  586. };
  587.  
  588.  
  589. tests['cssreflections'] = function() {
  590. return testPropsAll('boxReflect');
  591. };
  592.  
  593.  
  594. tests['csstransforms'] = function() {
  595. return !!testProps(['transformProperty', 'WebkitTransform', 'MozTransform', 'OTransform', 'msTransform']);
  596. };
  597.  
  598.  
  599. tests['csstransforms3d'] = function() {
  600.  
  601. var ret = !!testProps(['perspectiveProperty', 'WebkitPerspective', 'MozPerspective', 'OPerspective', 'msPerspective']);
  602.  
  603. // Webkit’s 3D transforms are passed off to the browser's own graphics renderer.
  604. // It works fine in Safari on Leopard and Snow Leopard, but not in Chrome in
  605. // some conditions. As a result, Webkit typically recognizes the syntax but
  606. // will sometimes throw a false positive, thus we must do a more thorough check:
  607. if ( ret && 'webkitPerspective' in docElement.style ) {
  608.  
  609. // Webkit allows this media query to succeed only if the feature is enabled.
  610. // `@media (transform-3d),(-o-transform-3d),(-moz-transform-3d),(-ms-transform-3d),(-webkit-transform-3d),(modernizr){ ... }`
  611. ret = Modernizr['csstransforms3d'];
  612. }
  613. return ret;
  614. };
  615.  
  616.  
  617. tests['csstransitions'] = function() {
  618. return testPropsAll('transitionProperty');
  619. };
  620.  
  621.  
  622. /*>>fontface*/
  623. // @font-face detection routine by Diego Perini
  624. // http://javascript.nwbox.com/CSSSupport/
  625. tests['fontface'] = function() {
  626. return Modernizr['fontface'];
  627. };
  628. /*>>fontface*/
  629.  
  630. // CSS generated content detection
  631. tests['generatedcontent'] = function() {
  632. return Modernizr['generatedcontent'];
  633. };
  634.  
  635.  
  636.  
  637. // These tests evaluate support of the video/audio elements, as well as
  638. // testing what types of content they support.
  639. //
  640. // We're using the Boolean constructor here, so that we can extend the value
  641. // e.g. Modernizr.video // true
  642. // Modernizr.video.ogg // 'probably'
  643. //
  644. // Codec values from : http://github.com/NielsLeenheer/html5test/blob/9106a8/index.html#L845
  645. // thx to NielsLeenheer and zcorpan
  646.  
  647. // Note: in FF 3.5.1 and 3.5.0, "no" was a return value instead of empty string.
  648. // Modernizr does not normalize for that.
  649.  
  650. tests['video'] = function() {
  651. var elem = document.createElement('video'),
  652. bool = false;
  653.  
  654. // IE9 Running on Windows Server SKU can cause an exception to be thrown, bug #224
  655. try {
  656. if ( bool = !!elem.canPlayType ) {
  657. bool = new Boolean(bool);
  658. bool.ogg = elem.canPlayType('video/ogg; codecs="theora"');
  659.  
  660. // Workaround required for IE9, which doesn't report video support without audio codec specified.
  661. // bug 599718 @ msft connect
  662. var h264 = 'video/mp4; codecs="avc1.42E01E';
  663. bool.h264 = elem.canPlayType(h264 + '"') || elem.canPlayType(h264 + ', mp4a.40.2"');
  664.  
  665. bool.webm = elem.canPlayType('video/webm; codecs="vp8, vorbis"');
  666. }
  667.  
  668. } catch(e) { }
  669.  
  670. return bool;
  671. };
  672.  
  673. tests['audio'] = function() {
  674. var elem = document.createElement('audio'),
  675. bool = false;
  676.  
  677. try {
  678. if ( bool = !!elem.canPlayType ) {
  679. bool = new Boolean(bool);
  680. bool.ogg = elem.canPlayType('audio/ogg; codecs="vorbis"');
  681. bool.mp3 = elem.canPlayType('audio/mpeg;');
  682.  
  683. // Mimetypes accepted:
  684. // https://developer.mozilla.org/En/Media_formats_supported_by_the_audio_and_video_elements
  685. // http://bit.ly/iphoneoscodecs
  686. bool.wav = elem.canPlayType('audio/wav; codecs="1"');
  687. bool.m4a = elem.canPlayType('audio/x-m4a;') || elem.canPlayType('audio/aac;');
  688. }
  689. } catch(e) { }
  690.  
  691. return bool;
  692. };
  693.  
  694.  
  695. // Firefox has made these tests rather unfun.
  696.  
  697. // In FF4, if disabled, window.localStorage should === null.
  698.  
  699. // Normally, we could not test that directly and need to do a
  700. // `('localStorage' in window) && ` test first because otherwise Firefox will
  701. // throw http://bugzil.la/365772 if cookies are disabled
  702.  
  703. // However, in Firefox 4 betas, if dom.storage.enabled == false, just mentioning
  704. // the property will throw an exception. http://bugzil.la/599479
  705. // This looks to be fixed for FF4 Final.
  706.  
  707. // Because we are forced to try/catch this, we'll go aggressive.
  708.  
  709. // FWIW: IE8 Compat mode supports these features completely:
  710. // http://www.quirksmode.org/dom/html5.html
  711. // But IE8 doesn't support either with local files
  712.  
  713. tests['localstorage'] = function() {
  714. try {
  715. return !!localStorage.getItem;
  716. } catch(e) {
  717. return false;
  718. }
  719. };
  720.  
  721. tests['sessionstorage'] = function() {
  722. try {
  723. return !!sessionStorage.getItem;
  724. } catch(e){
  725. return false;
  726. }
  727. };
  728.  
  729.  
  730. tests['webworkers'] = function() {
  731. return !!window.Worker;
  732. };
  733.  
  734.  
  735. tests['applicationcache'] = function() {
  736. return !!window.applicationCache;
  737. };
  738.  
  739.  
  740. // Thanks to Erik Dahlstrom
  741. tests['svg'] = function() {
  742. return !!document.createElementNS && !!document.createElementNS(ns.svg, 'svg').createSVGRect;
  743. };
  744.  
  745. // specifically for SVG inline in HTML, not within XHTML
  746. // test page: paulirish.com/demo/inline-svg
  747. tests['inlinesvg'] = function() {
  748. var div = document.createElement('div');
  749. div.innerHTML = '<svg/>';
  750. return (div.firstChild && div.firstChild.namespaceURI) == ns.svg;
  751. };
  752.  
  753. // Thanks to F1lt3r and lucideer, ticket #35
  754. tests['smil'] = function() {
  755. return !!document.createElementNS && /SVG/.test(toString.call(document.createElementNS(ns.svg, 'animate')));
  756. };
  757.  
  758. tests['svgclippaths'] = function() {
  759. // Possibly returns a false positive in Safari 3.2?
  760. return !!document.createElementNS && /SVG/.test(toString.call(document.createElementNS(ns.svg, 'clipPath')));
  761. };
  762.  
  763. // input features and input types go directly onto the ret object, bypassing the tests loop.
  764. // Hold this guy to execute in a moment.
  765. function webforms() {
  766. // Run through HTML5's new input attributes to see if the UA understands any.
  767. // We're using f which is the <input> element created early on
  768. // Mike Taylr has created a comprehensive resource for testing these attributes
  769. // when applied to all input types:
  770. // http://miketaylr.com/code/input-type-attr.html
  771. // spec: http://www.whatwg.org/specs/web-apps/current-work/multipage/the-input-element.html#input-type-attr-summary
  772.  
  773. // Only input placeholder is tested while textarea's placeholder is not.
  774. // Currently Safari 4 and Opera 11 have support only for the input placeholder
  775. // Both tests are available in feature-detects/forms-placeholder.js
  776. Modernizr['input'] = (function( props ) {
  777. for ( var i = 0, len = props.length; i < len; i++ ) {
  778. attrs[ props[i] ] = !!(props[i] in inputElem);
  779. }
  780. return attrs;
  781. })('autocomplete autofocus list placeholder max min multiple pattern required step'.split(' '));
  782.  
  783. // Run through HTML5's new input types to see if the UA understands any.
  784. // This is put behind the tests runloop because it doesn't return a
  785. // true/false like all the other tests; instead, it returns an object
  786. // containing each input type with its corresponding true/false value
  787.  
  788. // Big thanks to @miketaylr for the html5 forms expertise. http://miketaylr.com/
  789. Modernizr['inputtypes'] = (function(props) {
  790.  
  791. for ( var i = 0, bool, inputElemType, defaultView, len = props.length; i < len; i++ ) {
  792.  
  793. inputElem.setAttribute('type', inputElemType = props[i]);
  794. bool = inputElem.type !== 'text';
  795.  
  796. // We first check to see if the type we give it sticks..
  797. // If the type does, we feed it a textual value, which shouldn't be valid.
  798. // If the value doesn't stick, we know there's input sanitization which infers a custom UI
  799. if ( bool ) {
  800.  
  801. inputElem.value = smile;
  802. inputElem.style.cssText = 'position:absolute;visibility:hidden;';
  803.  
  804. if ( /^range$/.test(inputElemType) && inputElem.style.WebkitAppearance !== undefined ) {
  805.  
  806. docElement.appendChild(inputElem);
  807. defaultView = document.defaultView;
  808.  
  809. // Safari 2-4 allows the smiley as a value, despite making a slider
  810. bool = defaultView.getComputedStyle &&
  811. defaultView.getComputedStyle(inputElem, null).WebkitAppearance !== 'textfield' &&
  812. // Mobile android web browser has false positive, so must
  813. // check the height to see if the widget is actually there.
  814. (inputElem.offsetHeight !== 0);
  815.  
  816. docElement.removeChild(inputElem);
  817.  
  818. } else if ( /^(search|tel)$/.test(inputElemType) ){
  819. // Spec doesnt define any special parsing or detectable UI
  820. // behaviors so we pass these through as true
  821.  
  822. // Interestingly, opera fails the earlier test, so it doesn't
  823. // even make it here.
  824.  
  825. } else if ( /^(url|email)$/.test(inputElemType) ) {
  826. // Real url and email support comes with prebaked validation.
  827. bool = inputElem.checkValidity && inputElem.checkValidity() === false;
  828.  
  829. } else if ( /^color$/.test(inputElemType) ) {
  830. // chuck into DOM and force reflow for Opera bug in 11.00
  831. // github.com/Modernizr/Modernizr/issues#issue/159
  832. docElement.appendChild(inputElem);
  833. docElement.offsetWidth;
  834. bool = inputElem.value != smile;
  835. docElement.removeChild(inputElem);
  836.  
  837. } else {
  838. // If the upgraded input compontent rejects the :) text, we got a winner
  839. bool = inputElem.value != smile;
  840. }
  841. }
  842.  
  843. inputs[ props[i] ] = !!bool;
  844. }
  845. return inputs;
  846. })('search tel url email datetime date month week time datetime-local number range color'.split(' '));
  847. }
  848.  
  849.  
  850. // End of test definitions
  851. // -----------------------
  852.  
  853.  
  854.  
  855. // Run through all tests and detect their support in the current UA.
  856. // todo: hypothetically we could be doing an array of tests and use a basic loop here.
  857. for ( var feature in tests ) {
  858. if ( hasOwnProperty(tests, feature) ) {
  859. // run the test, throw the return value into the Modernizr,
  860. // then based on that boolean, define an appropriate className
  861. // and push it into an array of classes we'll join later.
  862. featureName = feature.toLowerCase();
  863. Modernizr[featureName] = tests[feature]();
  864.  
  865. classes.push((Modernizr[featureName] ? '' : 'no-') + featureName);
  866. }
  867. }
  868.  
  869. // input tests need to run.
  870. Modernizr.input || webforms();
  871.  
  872.  
  873. /**
  874.   * addTest allows the user to define their own feature tests
  875.   * the result will be added onto the Modernizr object,
  876.   * as well as an appropriate className set on the html element
  877.   *
  878.   * @param feature - String naming the feature
  879.   * @param test - Function returning true if feature is supported, false if not
  880.   */
  881. Modernizr.addTest = function ( feature, test ) {
  882. if ( typeof feature == "object" ) {
  883. for ( var key in feature ) {
  884. if ( hasOwnProperty( feature, key ) ) {
  885. Modernizr.addTest( key, feature[ key ] );
  886. }
  887. }
  888. } else {
  889.  
  890. feature = feature.toLowerCase();
  891.  
  892. if ( Modernizr[feature] !== undefined ) {
  893. // we're going to quit if you're trying to overwrite an existing test
  894. // if we were to allow it, we'd do this:
  895. // var re = new RegExp("\\b(no-)?" + feature + "\\b");
  896. // docElement.className = docElement.className.replace( re, '' );
  897. // but, no rly, stuff 'em.
  898. return;
  899. }
  900.  
  901. test = typeof test == "boolean" ? test : !!test();
  902.  
  903. docElement.className += ' ' + (test ? '' : 'no-') + feature;
  904. Modernizr[feature] = test;
  905.  
  906. }
  907.  
  908. return Modernizr; // allow chaining.
  909. };
  910.  
  911.  
  912. // Reset modElem.cssText to nothing to reduce memory footprint.
  913. setCss('');
  914. modElem = inputElem = null;
  915.  
  916. //>>BEGIN IEPP
  917. // Enable HTML 5 elements for styling (and printing) in IE.
  918. if ( window.attachEvent && (function(){ var elem = document.createElement('div');
  919. elem.innerHTML = '<elem></elem>';
  920. return elem.childNodes.length !== 1; })() ) {
  921.  
  922. // iepp v2 by @jon_neal & afarkas : github.com/aFarkas/iepp/
  923. (function(win, doc) {
  924. win.iepp = win.iepp || {};
  925. var iepp = win.iepp,
  926. elems = iepp.html5elements || 'abbr|article|aside|audio|canvas|datalist|details|figcaption|figure|footer|header|hgroup|mark|meter|nav|output|progress|section|summary|time|video',
  927. elemsArr = elems.split('|'),
  928. elemsArrLen = elemsArr.length,
  929. elemRegExp = new RegExp('(^|\\s)('+elems+')', 'gi'),
  930. tagRegExp = new RegExp('<(\/*)('+elems+')', 'gi'),
  931. filterReg = /^\s*[\{\}]\s*$/,
  932. ruleRegExp = new RegExp('(^|[^\\n]*?\\s)('+elems+')([^\\n]*)({[\\n\\w\\W]*?})', 'gi'),
  933. docFrag = doc.createDocumentFragment(),
  934. html = doc.documentElement,
  935. head = html.firstChild,
  936. bodyElem = doc.createElement('body'),
  937. styleElem = doc.createElement('style'),
  938. printMedias = /print|all/,
  939. body;
  940. function shim(doc) {
  941. var a = -1;
  942. while (++a < elemsArrLen)
  943. // Use createElement so IE allows HTML5-named elements in a document
  944. doc.createElement(elemsArr[a]);
  945. }
  946.  
  947. iepp.getCSS = function(styleSheetList, mediaType) {
  948. if(styleSheetList+'' === undefined){return '';}
  949. var a = -1,
  950. len = styleSheetList.length,
  951. styleSheet,
  952. cssTextArr = [];
  953. while (++a < len) {
  954. styleSheet = styleSheetList[a];
  955. //currently no test for disabled/alternate stylesheets
  956. if(styleSheet.disabled){continue;}
  957. mediaType = styleSheet.media || mediaType;
  958. // Get css from all non-screen stylesheets and their imports
  959. if (printMedias.test(mediaType)) cssTextArr.push(iepp.getCSS(styleSheet.imports, mediaType), styleSheet.cssText);
  960. //reset mediaType to all with every new *not imported* stylesheet
  961. mediaType = 'all';
  962. }
  963. return cssTextArr.join('');
  964. };
  965.  
  966. iepp.parseCSS = function(cssText) {
  967. var cssTextArr = [],
  968. rule;
  969. while ((rule = ruleRegExp.exec(cssText)) != null){
  970. // Replace all html5 element references with iepp substitute classnames
  971. cssTextArr.push(( (filterReg.exec(rule[1]) ? '\n' : rule[1]) +rule[2]+rule[3]).replace(elemRegExp, '$1.iepp_$2')+rule[4]);
  972. }
  973. return cssTextArr.join('\n');
  974. };
  975.  
  976. iepp.writeHTML = function() {
  977. var a = -1;
  978. body = body || doc.body;
  979. while (++a < elemsArrLen) {
  980. var nodeList = doc.getElementsByTagName(elemsArr[a]),
  981. nodeListLen = nodeList.length,
  982. b = -1;
  983. while (++b < nodeListLen)
  984. if (nodeList[b].className.indexOf('iepp_') < 0)
  985. // Append iepp substitute classnames to all html5 elements
  986. nodeList[b].className += ' iepp_'+elemsArr[a];
  987. }
  988. docFrag.appendChild(body);
  989. html.appendChild(bodyElem);
  990. // Write iepp substitute print-safe document
  991. bodyElem.className = body.className;
  992. bodyElem.id = body.id;
  993. // Replace HTML5 elements with <font> which is print-safe and shouldn't conflict since it isn't part of html5
  994. bodyElem.innerHTML = body.innerHTML.replace(tagRegExp, '<$1font');
  995. };
  996.  
  997.  
  998. iepp._beforePrint = function() {
  999. // Write iepp custom print CSS
  1000. styleElem.styleSheet.cssText = iepp.parseCSS(iepp.getCSS(doc.styleSheets, 'all'));
  1001. iepp.writeHTML();
  1002. };
  1003.  
  1004. iepp.restoreHTML = function(){
  1005. // Undo everything done in onbeforeprint
  1006. bodyElem.innerHTML = '';
  1007. html.removeChild(bodyElem);
  1008. html.appendChild(body);
  1009. };
  1010.  
  1011. iepp._afterPrint = function(){
  1012. // Undo everything done in onbeforeprint
  1013. iepp.restoreHTML();
  1014. styleElem.styleSheet.cssText = '';
  1015. };
  1016.  
  1017.  
  1018.  
  1019. // Shim the document and iepp fragment
  1020. shim(doc);
  1021. shim(docFrag);
  1022.  
  1023. //
  1024. if(iepp.disablePP){return;}
  1025.  
  1026. // Add iepp custom print style element
  1027. head.insertBefore(styleElem, head.firstChild);
  1028. styleElem.media = 'print';
  1029. styleElem.className = 'iepp-printshim';
  1030. win.attachEvent(
  1031. 'onbeforeprint',
  1032. iepp._beforePrint
  1033. );
  1034. win.attachEvent(
  1035. 'onafterprint',
  1036. iepp._afterPrint
  1037. );
  1038. })(window, document);
  1039. }
  1040. //>>END IEPP
  1041.  
  1042. // Assign private properties to the return object with prefix
  1043. Modernizr._version = version;
  1044.  
  1045. // expose these for the plugin API. Look in the source for how to join() them against your input
  1046. Modernizr._prefixes = prefixes;
  1047. Modernizr._domPrefixes = domPrefixes;
  1048.  
  1049. // Modernizr.mq tests a given media query, live against the current state of the window
  1050. // A few important notes:
  1051. // * If a browser does not support media queries at all (eg. oldIE) the mq() will always return false
  1052. // * A max-width or orientation query will be evaluated against the current state, which may change later.
  1053. // * You must specify values. Eg. If you are testing support for the min-width media query use:
  1054. // Modernizr.mq('(min-width:0)')
  1055. // usage:
  1056. // Modernizr.mq('only screen and (max-width:768)')
  1057. Modernizr.mq = testMediaQuery;
  1058.  
  1059. // Modernizr.hasEvent() detects support for a given event, with an optional element to test on
  1060. // Modernizr.hasEvent('gesturestart', elem)
  1061. Modernizr.hasEvent = isEventSupported;
  1062.  
  1063. // Modernizr.testProp() investigates whether a given style property is recognized
  1064. // Note that the property names must be provided in the camelCase variant.
  1065. // Modernizr.testProp('pointerEvents')
  1066. Modernizr.testProp = function(prop){
  1067. return testProps([prop]);
  1068. };
  1069.  
  1070. // Modernizr.testAllProps() investigates whether a given style property,
  1071. // or any of its vendor-prefixed variants, is recognized
  1072. // Note that the property names must be provided in the camelCase variant.
  1073. // Modernizr.testAllProps('boxSizing')
  1074. Modernizr.testAllProps = testPropsAll;
  1075.  
  1076.  
  1077.  
  1078. // Modernizr.testStyles() allows you to add custom styles to the document and test an element afterwards
  1079. // Modernizr.testStyles('#modernizr { position:absolute }', function(elem, rule){ ... })
  1080. Modernizr.testStyles = injectElementWithStyles;
  1081.  
  1082.  
  1083. // Modernizr.prefixed() returns the prefixed or nonprefixed property name variant of your input
  1084. // Modernizr.prefixed('boxSizing') // 'MozBoxSizing'
  1085.  
  1086. // Properties must be passed as dom-style camelcase, rather than `box-sizing` hypentated style.
  1087. // Return values will also be the camelCase variant, if you need to translate that to hypenated style use:
  1088. //
  1089. // str.replace(/([A-Z])/g, function(str,m1){ return '-' + m1.toLowerCase(); }).replace(/^ms-/,'-ms-');
  1090.  
  1091. // If you're trying to ascertain which transition end event to bind to, you might do something like...
  1092. //
  1093. // var transEndEventNames = {
  1094. // 'WebkitTransition' : 'webkitTransitionEnd',
  1095. // 'MozTransition' : 'transitionend',
  1096. // 'OTransition' : 'oTransitionEnd',
  1097. // 'msTransition' : 'msTransitionEnd', // maybe?
  1098. // 'transition' : 'transitionEnd'
  1099. // },
  1100. // transEndEventName = transEndEventNames[ Modernizr.prefixed('transition') ];
  1101.  
  1102. Modernizr.prefixed = function(prop){
  1103. return testPropsAll(prop, 'pfx');
  1104. };
  1105.  
  1106.  
  1107.  
  1108. // Remove "no-js" class from <html> element, if it exists:
  1109. docElement.className = docElement.className.replace(/\bno-js\b/, '')
  1110.  
  1111. // Add the new classes to the <html> element.
  1112. + (enableClasses ? ' js ' + classes.join(' ') : '');
  1113.  
  1114. return Modernizr;
  1115.  
  1116. })(this, this.document);

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