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1/*! 2 * Modernizr v2.6.1 3 * www.modernizr.com 4 * 5 * Copyright (c) Faruk Ates, Paul Irish, Alex Sexton 6 * Available under the BSD and 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 25window.Modernizr = (function( window, document, undefined ) { 26 27 var version = '2.6.1', 28 29 Modernizr = {}, 30 31 /*>>cssclasses*/ 32 // option for enabling the HTML classes to be added 33 enableClasses = true, 34 /*>>cssclasses*/ 35 36 docElement = document.documentElement, 37 38 /** 39 * Create our "modernizr" element that we do most feature tests on. 40 */ 41 mod = 'modernizr', 42 modElem = document.createElement(mod), 43 mStyle = modElem.style, 44 45 /** 46 * Create the input element for various Web Forms feature tests. 47 */ 48 inputElem /*>>inputelem*/ = document.createElement('input') /*>>inputelem*/ , 49 50 /*>>smile*/ 51 smile = ':)', 52 /*>>smile*/ 53 54 toString = {}.toString, 55 56 // TODO :: make the prefixes more granular 57 /*>>prefixes*/ 58 // List of property values to set for css tests. See ticket #21 59 prefixes = ' -webkit- -moz- -o- -ms- '.split(' '), 60 /*>>prefixes*/ 61 62 /*>>domprefixes*/ 63 // Following spec is to expose vendor-specific style properties as: 64 // elem.style.WebkitBorderRadius 65 // and the following would be incorrect: 66 // elem.style.webkitBorderRadius 67 68 // Webkit ghosts their properties in lowercase but Opera & Moz do not. 69 // Microsoft uses a lowercase `ms` instead of the correct `Ms` in IE8+ 70 // erik.eae.net/archives/2008/03/10/21.48.10/ 71 72 // More here: github.com/Modernizr/Modernizr/issues/issue/21 73 omPrefixes = 'Webkit Moz O ms', 74 75 cssomPrefixes = omPrefixes.split(' '), 76 77 domPrefixes = omPrefixes.toLowerCase().split(' '), 78 /*>>domprefixes*/ 79 80 /*>>ns*/ 81 ns = {'svg': 'http://www.w3.org/2000/svg'}, 82 /*>>ns*/ 83 84 tests = {}, 85 inputs = {}, 86 attrs = {}, 87 88 classes = [], 89 90 slice = classes.slice, 91 92 featureName, // used in testing loop 93 94 95 /*>>teststyles*/ 96 // Inject element with style element and some CSS rules 97 injectElementWithStyles = function( rule, callback, nodes, testnames ) { 98 99 var style, ret, node, 100 div = document.createElement('div'), 101 // After page load injecting a fake body doesn't work so check if body exists 102 body = document.body, 103 // IE6 and 7 won't return offsetWidth or offsetHeight unless it's in the body element, so we fake it. 104 fakeBody = body ? body : document.createElement('body'); 105 106 if ( parseInt(nodes, 10) ) { 107 // In order not to give false positives we create a node for each test 108 // This also allows the method to scale for unspecified uses 109 while ( nodes-- ) { 110 node = document.createElement('div'); 111 node.id = testnames ? testnames[nodes] : mod + (nodes + 1); 112 div.appendChild(node); 113 } 114 } 115 116 // <style> elements in IE6-9 are considered 'NoScope' elements and therefore will be removed 117 // when injected with innerHTML. To get around this you need to prepend the 'NoScope' element 118 // with a 'scoped' element, in our case the soft-hyphen entity as it won't mess with our measurements. 119 // msdn.microsoft.com/en-us/library/ms533897%28VS.85%29.aspx 120 // Documents served as xml will throw if using ­ so use xml friendly encoded version. See issue #277 121 style = ['­','<style id="s', mod, '">', rule, '</style>'].join(''); 122 div.id = mod; 123 // IE6 will false positive on some tests due to the style element inside the test div somehow interfer
123ing offsetHeight, so insert it into body or fakebody. 124 // Opera will act all quirky when injecting elements in documentElement when page is served as xml, needs fakebody too. #270 125 (body ? div : fakeBody).innerHTML += style; 126 fakeBody.appendChild(div); 127 if ( !body ) { 128 //avoid crashing IE8, if background image is used 129 fakeBody.style.background = ""; 130 docElement.appendChild(fakeBody); 131 } 132 133 ret = callback(div, rule); 134 // If this is done after page load we don't want to remove the body so check if body exists 135 !body ? fakeBody.parentNode.removeChild(fakeBody) : div.parentNode.removeChild(div); 136 137 return !!ret; 138 139 }, 140 /*>>teststyles*/ 141 142 /*>>mq*/ 143 // adapted from matchMedia polyfill 144 // by Scott Jehl and Paul Irish 145 // gist.github.com/786768 146 testMediaQuery = function( mq ) { 147 148 var matchMedia = window.matchMedia || window.msMatchMedia; 149 if ( matchMedia ) { 150 return matchMedia(mq).matches
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150; 151 } 152 153 var bool; 154 155 injectElementWithStyles('@media ' + mq + ' { #' + mod + ' { position: absolute; } }', function( node ) { 156 bool = (window.getComputedStyle ? 157 getComputedStyle(node, null) : 158 node.currentStyle)['position'] == 'absolute'; 159 }); 160 161 return bool; 162 163 }, 164 /*>>mq*/ 165 166 167 /*>>hasevent*/ 168 // 169 // isEventSupported determines if a given element supports the given event 170 // kangax.github.com/iseventsupported/ 171 // 172 // The following results are known incorrects: 173 // Modernizr.hasEvent("webkitTransitionEnd", elem) // false negative 174 // Modernizr.hasEvent("textInput") // in Webkit. github.com/Modernizr/Modernizr/issues/333 175 // ... 176 isEventSupported = (function() { 177 178 var TAGNAMES = { 179 'select': 'input', 'change': 'input', 180 'submit': 'form', 'reset': 'form', 181 'error': 'img', 'load': 'img', 'abort': 'img' 182 }; 183 184 function isEventSupported( eventName, element ) { 185 186 element = element || document.createElement(TAGNAMES[eventName] || 'div'); 187 eventName = 'on' + eventName; 188 189 // When using `setAttribute`, IE skips "unload", WebKit skips "unload" and "resize", whereas `in` "catches" those 190 var isSupported = eventName in element; 191 192 if ( !isSupported ) { 193 // If it has no `setAttribute` (i.e. doesn't implement Node interface), try generic element 194 if ( !element.setAttribute ) { 195 element = document.createElement('div'); 196 } 197 if ( element.setAttribute && element.removeAttribute ) { 198 element.setAttribute(eventName, ''); 199 isSupported = is(element[eventName], 'function'); 200 201 // If property was created, "remove it" (by setting value to `undefined`) 202 if ( !is(element[eventName], 'undefined') ) { 203 element[eventName] = undefined; 204 } 205 element.removeAttribute(eventName); 206 } 207 } 208 209 element = null; 210 return isSupported; 211 } 212 return isEventSupported; 213 })(), 214 /*>>hasevent*/ 215 216 // TODO :: Add flag for hasownprop ? didn't last time 217 218 // hasOwnProperty shim by kangax needed for Safari 2.0 support 219 _hasOwnProperty = ({}).hasOwnProperty, hasOwnProp; 220 221 if ( !is(_hasOwnProperty, 'undefined') && !is(_hasOwnProperty.call, 'undefined') ) { 222 hasOwnProp = function (object, property) { 223 return _hasOwnProperty.call(object, property); 224 }; 225 } 226 else { 227 hasOwnProp = function (object, property) { /* yes, this can give false positives/negatives, but most of the time we don't care about those */ 228 return ((property in object) && is(object.constructor.prototype[property], 'undefined')); 229 }; 230 } 231 232 // Adapted from ES5-shim https://github.com/kriskowal/es5-shim/blob/master/es5-shim.js 233 // es5.github.com/#x15.3.4.5 234 235 if (!Function.prototype.bind) { 236 Function.prototype.bind = function bind(that) { 237 238 var target = this; 239 240 if (typeof target != "function") { 241 throw new TypeError(); 242 } 243 244 var args = slice.call(arguments, 1), 245 bound = function () { 246 247 if (this instanceof bound) { 248 249 var F = function(){}; 250 F.prototype = target.prototype; 251 var self = new F(); 252 253 var result = target.apply( 254 self, 255 args.concat(slice.call(arguments)) 256 ); 257 if (Object(result) === result) { 258 return result; 259 } 260 return self; 261 262 } else { 263 264 return target.apply( 265 that, 266 args.concat(slice.call(arguments)) 267 ); 268 269 } 270 271 }; 272 273 return bound; 274 }; 275 } 276 277 /** 278 * setCss applies given styles to the Modernizr DOM node. 279 */ 280 function setCss( str ) { 281 mStyle.cssText = str; 282 } 283 284 /** 285 * setCssAll extrapolates all vendor-specific css strings. 286 */ 287 function setCssAll( str1, str2 ) { 288 return setCss(prefixes.join(str1 + ';') + ( str2 || '' )); 289 } 290 291 /** 292 * is returns a boolean for if typeof obj is exactly type. 293 */ 294 function is( obj, type ) { 295 return typeof obj === type; 296 } 297 298 /** 299 * contains returns a boolean for if substr is found within str. 300 */ 301 function contains( str, substr ) { 302 return !!~('' + str).indexOf(substr); 303 } 304 305 /*>>testprop*/ 306 307 // testProps is a generic CSS / DOM property test. 308 309 // In testing support for a given CSS property, it's legit to test: 310 // `elem.style[styleName] !== undefined` 311 // If the property is supported it will return an empty string, 312 // if unsupported it will return undefined. 313 314 // We'll take advantage of this quick test and skip setting a style 315 // on our modernizr element, but instead just testing undefined vs 316 // empty string. 317 318 // Because the testing of the CSS property names (with "-", as 319 // opposed to the camelCase DOM properties) is non-portable and 320 // non-standard but works in WebKit and IE (but not Gecko or Opera), 321 // we explicitly reject properties with dashes so that authors 322 // developing in WebKit or IE first don't end up with 323 // browser-specific content by accident. 324 325 function testProps( props, prefixed ) { 326 for ( var i in props ) { 327 var prop = props[i]; 328 if ( !contains(prop, "-") && mStyle[prop] !== undefined ) { 329 return prefixed == 'pfx' ? prop : true; 330 } 331 } 332 return false; 333 } 334 /*>>testprop*/ 335 336 // TODO :: add testDOMProps 337 /** 338 * testDOMProps is a generic DOM property test; if a browser supports 339 * a certain property, it won't return undefined for it. 340 */ 341 function testDOMProps( props, obj, elem ) { 342 for ( var i in props ) { 343 var item = obj[props[i]]; 344 if ( item !== undefined) { 345 346 // return the property name as a string 347 if (elem === false) return props[i]; 348 349 // let's bind a function 350 if (is(item, 'function')){ 351 // default to autobind unless override 352 return item.bind(elem || obj); 353 } 354 355 // return the unbound function or obj or value 356 return item; 357 } 358 } 359 return false; 360 } 361 362 /*>>testallprops*/ 363 /** 364 * testPropsAll tests a list of DOM properties we want to check against. 365 * We specify literally ALL possible (known and/or likely) properties on 366 * the element including the non-vendor prefixed one, for forward- 367 * compatibility. 368 */ 369 function testPropsAll( prop, prefixed, elem ) { 370 371 var ucProp = prop.charAt(0).toUpperCase() + prop.slice(1), 372 props = (prop + ' ' + cssomPrefixes.join(ucProp + ' ') + ucProp).split(' '); 373 374 // did they call .prefixed('boxSizing') or are we just testing a prop? 375 if(is(prefixed, "string") || is(prefixed, "undefined")) { 376 return testProps(props, prefixed); 377 378 // otherwise, they called .prefixed('requestAnimationFrame', window[, elem]) 379 } else { 380 props = (prop + ' ' + (domPrefixes).join(ucProp + ' ') + ucProp).split(' '); 381 return testDOMProps(props, prefixed, elem); 382 } 383 } 384 /*>>testallprops*/ 385 386 387 /** 388 * Tests 389 * ----- 390 */ 391 392 // The *new* flexbox 393 // dev.w3.org/csswg/css3-flexbox 394 395 tests['flexbox'] = function() { 396 return testPropsAll('flexWrap'); 397 }; 398 399 // The *old* flexbox 400 // www.w3.org/TR/2009/WD-css3-flexbox-20090723/ 401 402 tests['flexboxlegacy'] = function() { 403 return testPropsAll('boxDirection'); 404 }; 405 406 // On the S60 and BB Storm, getContext exists, but always returns undefined 407 // so we actually have to call getContext() to verify 408 // github.com/Modernizr/Modernizr/issues/issue/97/ 409 410 tests['canvas'] = function() { 411 var elem = document.createElement('canvas'); 412 return !!(elem.getContext && elem.getContext('2d')); 413 }; 414 415 tests['canvastext'] = function() { 416 return !!(Modernizr['canvas'] && is(document.createElement('canvas').getContext('2d').fillText, 'function')); 417 }; 418 419 // webk.it/70117 is tracking a legit WebGL feature detect proposal 420 421 // We do a soft detect which may false positive in order to avoid 422 // an expensive context creation: bugzil.la/732441 423 424 tests['webgl'] = function() { 425 return !!window.WebGLRenderingContext; 426 }; 427 428 /* 429 * The Modernizr.touch test only indicates if the browser supports 430 * touch events, which does not necessarily reflect a touchscreen 431 * device, as evidenced by tablets running Windows 7 or, alas, 432 * the Palm Pre / WebOS (touch) phones. 433 * 434 * Additionally, Chrome (desktop) used to lie about its support on this, 435 * but that has since been rectified: crbug.com/36415 436 * 437 * We also test for Firefox 4 Multitouch Support. 438 * 439 * For more info, see: modernizr.github.com/Modernizr/touch.html 440 */ 441 442 tests['touch'] = function() { 443 var bool; 444 445 if(('ontouchstart' in window) || window.DocumentTouch && document instanceof DocumentTouch) { 446 bool = true; 447 } else { 448 injectElementWithStyles(['@media (',prefixes.join('touch-enabled),('),mod,')','{#modernizr{top:9px;position:absolute}}'].join(''), function( node ) { 449 bool = node.offsetTop === 9; 450 }); 451 } 452 453 return bool; 454 }; 455 456 457 // geolocation is often considered a trivial feature detect... 458 // Turns out, it's quite tricky to get right: 459 // 460 // Using !!navigator.geolocation does two things we don't want. It: 461 // 1. Leaks memory in IE9: github.com/Modernizr/Modernizr/issues/513 462 // 2. Disables page caching in WebKit: webk.it/43956 463 // 464 // Meanwhile, in Firefox < 8, an about:config setting could expose 465 // a false positive that would throw an exception: bugzil.la/688158 466 467 tests['geolocation'] = function() { 468 return 'geolocation' in navigator; 469 }; 470 471 472 tests['postmessage'] = function() { 473 return !!window.postMessage; 474 }; 475 476 477 // Chrome incognito mode used to throw an exception when using openDatabase 478 // It doesn't anymore. 479 tests['websqldatabase'] = function() { 480 return !!window.openDatabase; 481 }; 482 483 // Vendors had inconsistent prefixing with the experimental Indexed DB: 484 // - Webkit's implementation is accessible through webkitIndexedDB 485 // - Firefox shipped moz_indexedDB before FF4b9, but since then has been mozIndexedDB 486 // For speed, we don't test the legacy (and beta-only) indexedDB 487 tests['indexedDB'] = function() { 488 return !!testPropsAll("indexedDB", window); 489 }; 490 491 // documentMode logic from YUI to filter out IE8 Compat Mode 492 // which false positives. 493 tests['hashchange'] = function() { 494 return isEventSupported('hashchange', window) && (document.documentMode === undefined || document.documentMode > 7); 495 }; 496 497 // Per 1.6: 498 // This used to be Modernizr.historymanagement but the longer 499 // name has been deprecated in favor of a shorter and property-matching one. 500 // The old API is still available in 1.6, but as of 2.0 will throw a warning, 501 // and in the first release thereafter disappear entirely. 502 tests['history'] = function() { 503 return !!(window.history && history.pushState); 504 }; 505 506 tests['draganddrop'] = function() { 507 var div = document.createElement('div'); 508 return ('draggable' in div) || ('ondragstart' in div && 'ondrop' in div); 509 }; 510 511 // FF3.6 was EOL'ed on 4/24/12, but the ESR version of FF10 512 // will be supported until FF19 (2/12/13), at which time, ESR becomes FF17. 513 // FF10 still uses prefixes, so check for it until then. 514 // for more ESR info, see: mozilla.org/en-US/firefox/organizations/faq/ 515 tests['websockets'] = function() { 516 return 'WebSocket' in window || 'MozWebSocket' in window; 517 }; 518 519 520 // css-tricks.com/rgba-browser-support/ 521 tests['rgba'] = function() { 522 // Set an rgba() color and check the returned value 523 524 setCss('background-color:rgba(150,255,150,.5)'); 525 526 return contains(mStyle.backgroundColor, 'rgba'); 527 }; 528 529 tests['hsla'] = function() { 530 // Same as rgba(), in fact, browsers re-map hsla() to rgba() internally, 531 // except IE9 who retains it as hsla 532 533 setCss('background-color:hsla(120,40%,100%,.5)'); 534 535 return contains(mStyle.backgroundColor, 'rgba') || contains(mStyle.backgroundColor, 'hsla'); 536 }; 537 538 tests['multiplebgs'] = function() { 539 // Setting multiple images AND a color on the background shorthand property 540 // and then querying the style.background property value for the number of 541 // occurrences of "url(" is a reliable method for detecting ACTUAL support for this! 542 543 setCss('background:url(https://),url(https://),red url(https://)'); 544 545 // If the UA supports multiple backgrounds, there should be three occurrences 546 // of the string "url(" in the return value for elemStyle.background 547 548 return (/(url\s*\(.*?){3}/).test(mStyle.background); 549 }; 550 551 552 553 // this will false positive in Opera Mini 554 // github.com/Modernizr/Modernizr/issues/396 555 556 tests['backgroundsize'] = function() { 557 return testPropsAll('backgroundSize'); 558 }; 559 560 tests['borderimage'] = function() { 561 return testPropsAll('borderImage'); 562 }; 563 564 565 // Super comprehensive table about all the unique implementations of 566 // border-radius: muddledramblings.com/table-of-css3-border-radius-compliance 567 568 tests['borderradius'] = function() { 569 return testPropsAll('borderRadius'); 570 }; 571 572 // WebOS unfortunately false positives on this test. 573 tests['boxshadow'] = function() { 574 return testPropsAll('boxShadow'); 575 }; 576 577 // FF3.0 will false positive on this test 578 tests['textshadow'] = function() { 579 return document.createElement('div').style.textShadow === ''; 580 }; 581 582 583 tests['opacity'] = function() { 584 // Browsers that actually have CSS Opacity implemented have done so 585 // according to spec, which means their return values are within the 586 // range of [0.0,1.0] - including the leading zero. 587 588 setCssAll('opacity:.55'); 589 590 // The non-literal . in this regex is intentional: 591 // German Chrome returns this value as 0,55 592 // github.com/Modernizr/Modernizr/issues/#issue/59/comment/516632 593 return (/^0.55$/).test(mStyle.opacity); 594 }; 595 596 597 // Note, Android < 4 will pass this test, but can only animate 598 // a single property at a time 599 //
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599daneden.me/2011/12/putting-up-with-androids-bullshit/ 600 tests['cssanimations'] = function() { 601 return testPropsAll('animationName'); 602 }; 603 604 605 tests['csscolumns'] = function() { 606 return testPropsAll('columnCount'); 607 }; 608 609 610 tests['cssgradients'] = function() { 611 /** 612 * For CSS Gradients syntax, please see: 613 * webkit.org/blog/175/introducing-css-gradients/ 614 * developer.mozilla.org/en/CSS/-moz-linear-gradient 615 * developer.mozilla.org/en/CSS/-moz-radial-gradient 616 * dev.w3.org/csswg/css3-images/#gradients- 617 */ 618 619 var str1 = 'background-image:', 620 str2 = 'gradient(linear,left top,right bottom,from(#9f9),to(white));', 621 str3 = 'linear-gradient(left top,#9f9, white);'; 622 623 setCss( 624 // legacy webkit syntax (FIXME: remove when syntax not in use anymore) 625 (str1 + '-webkit- '.split(' ').join(str2 + str1) + 626 // standard syntax // trailing 'background-image:' 627 prefixes.join(str3 + str1)).slice(0, -str1.length) 628 ); 629 630 return contains(mStyle.backgroundImage, 'gradient'); 631 }; 632 633 634 tests['cssreflections'] = function() { 635 return testPropsAll('boxReflect'); 636 }; 637 638 639 tests['csstransforms'] = function() { 640 return !!testPropsAll('transform'); 641 }; 642 643 644 tests['csstransforms3d'] = function() { 645 646 var ret = !!testPropsAll('perspective'); 647 648 // Webkit's 3D transforms are passed off to the browser's own graphics renderer. 649 // It works fine in Safari on Leopard and Snow Leopard, but not in Chrome in 650 // some conditions. As a result, Webkit typically recognizes the syntax but 651 // will sometimes throw a false positive, thus we must do a more thorough check: 652 if ( ret && 'webkitPerspective' in docElement.style ) { 653 654 // Webkit allows this media query to succeed only if the feature is enabled. 655 // `@media (transform-3d),(-webkit-transform-3d){ ... }` 656 injectElementWithStyles('@media (transform-3d),(-webkit-transform-3d){#modernizr{left:9px;position:absolute;height:3px;}}', function( node, rule ) { 657 ret = node.offsetLeft === 9 && node.offsetHeight === 3; 658 }); 659 } 660 return ret; 661 }; 662 663 664 tests['csstransitions'] = function() { 665 return testPropsAll('transition'); 666 }; 667 668 669 /*>>fontface*/ 670 // @font-face detection routine by Diego Perini 671 // javascript.nwbox.com/CSSSupport/ 672 673 // false positives: 674 // WebOS github.com/Modernizr/Modernizr/issues/342 675 // WP7 github.com/Modernizr/Modernizr/issues/538 676 tests['fontface'] = function() { 677 var bool; 678 679 injectElementWithStyles('@font-face {font-family:"font";src:url("https://")}', function( node, rule ) { 680 var style = document.getElementById('smodernizr'), 681 sheet = style.sheet || style.styleSheet, 682 cssText = sheet ? (sheet.cssRules && sheet.cssRules[0] ? sheet.cssRules[0].cssText : sheet.cssText || '') : ''; 683 684 bool = /src/i.test(cssText) && cssText.indexOf(rule.split(' ')[0]) === 0; 685 }); 686 687 return bool; 688 }; 689 /*>>fontface*/ 690 691 // CSS generated content detection 692 tests['generatedcontent'] = function() { 693 var bool; 694 695 injectElementWithStyles(['#modernizr:after{content:"',smile,'";visibility:hidden}'].join(''), function( node ) { 696 bool = node.offsetHeight >= 1; 697 }); 698 699 return bool; 700 }; 701 702 703 704 // These tests evaluate support of the video/audio elements, as well as 705 // testing what types of content they support. 706 // 707 // We're using the Boolean constructor here, so that we can extend the value 708 // e.g. Modernizr.video // true 709 // Modernizr.video.ogg // 'probably' 710 // 711 // Codec values from : github.com/NielsLeenheer/html5test/blob/9106a8/index.html#L845 712 // thx to NielsLeenheer and zcorpan 713 714 // Note: in some older browsers, "no" was a return value instead of empty string. 715 // It was live in FF3.5.0 and 3.5.1, but fixed in 3.5.2 716 // It was also live in Safari 4.0.0 - 4.0.4, but fixed in 4.0.5 717 718 tests['video'] = function() { 719 var elem = document.createElement('video'), 720 bool = false; 721 722 // IE9 Running on Windows Server SKU can cause an exception to be thrown, bug #224 723 try { 724 if ( bool = !!elem.canPlayType ) { 725 bool = new Boolean(bool); 726 bool.ogg = elem.canPlayType('video/ogg; codecs="theora"') .replace(/^no$/,''); 727 728 // Without QuickTime, this value will be `undefined`. github.com/Modernizr/Modernizr/issues/546 729 bool.h264 = elem.canPlayType('video/mp4; codecs="avc1.42E01E"') .replace(/^no$/,''); 730 731 bool.webm = elem.canPlayType('video/webm; codecs="vp8, vorbis"').replace(/^no$/,''); 732 } 733 734 } catch(e) { } 735 736 return bool; 737 }; 738 739 tests['audio'] = function() { 740 var elem = document.createElement('audio'), 741 bool = false; 742 743 try { 744 if ( bool = !!elem.canPlayType ) { 745 bool = new Boolean(bool); 746 bool.ogg = elem.canPlayType('audio/ogg; codecs="vorbis"').replace(/^no$/,''); 747 bool.mp3 = elem.canPlayType('audio/mpeg;') .replace(/^no$/,''); 748 749 // Mimetypes accepted: 750 // developer.mozilla.org/En/Media_formats_supported_by_the_audio_and_video_elements 751 // bit.ly/iphoneoscodecs 752 bool.wav = elem.canPlayType('audio/wav; codecs="1"') .replace(/^no$/,''); 753 bool.m4a = ( elem.canPlayType('audio/x-m4a;') || 754 elem.canPlayType('audio/aac;')) .replace(/^no$/,''); 755 } 756 } catch(e) { } 757 758 return bool; 759 }; 760 761 762 // In FF4, if disabled, window.localStorage should === null. 763 764 // Normally, we could not test that directly and need to do a 765 // `('localStorage' in window) && ` test first because otherwise Firefox will 766 // throw bugzil.la/365772 if cookies are disabled 767 768 // Also in iOS5 Private Browsing mode, attempting to use localStorage.setItem 769 // will throw the exception: 770 // QUOTA_EXCEEDED_ERRROR DOM Exception 22. 771 // Peculiarly, getItem and removeItem calls do not throw. 772 773 // Because we are forced to try/catch this, we'll go aggressive. 774 775 // Just FWIW: IE8 Compat mode supports these features completely: 776 // www.quirksmode.org/dom/html5.html 777 // But IE8 doesn't support either with local files 778 779 tests['localstorage'] = function() { 780 try { 781 localStorage.setItem(mod, mod); 782 localStorage.removeItem(mod); 783 return true; 784 } catch(e) { 785 return false; 786 } 787 }; 788 789 tests['sessionstorage'] = function() { 790 try { 791 sessionStorage.setItem(mod, mod); 792 sessionStorage.removeItem(mod); 793 return true; 794 } catch(e) { 795 return false; 796 } 797 }; 798 799 800 tests['webworkers'] = function() { 801 return !!window.Worker; 802 }; 803 804 805 tests['applicationcache'] = function() { 806 return !!window.applicationCache; 807 }; 808 809 810 // Thanks to Erik Dahlstrom 811 tests['svg'] = function() { 812 return !!document.createElementNS && !!document.createElementNS(ns.svg, 'svg').createSVGRect; 813 }; 814 815 // specifically for SVG inline in HTML, not within XHTML 816 // test page: paulirish.com/demo/inline-svg 817 tests['inlinesvg'] = function() { 818 var div = document.createElement('div'); 819 div.innerHTML = '<svg/>'; 820 return (div.firstChild && div.firstChild.namespaceURI) == ns.svg; 821 }; 822 823 // SVG SMIL animation 824 tests['smil'] = function() { 825 return !!document.createElementNS && /SVGAnimate/.test(toString.call(document.createElementNS(ns.svg, 'animate'))); 826 }; 827 828 // This test is only for clip paths in SVG proper, not clip paths on HTML content 829 // demo: srufaculty.sru.edu/david.dailey/svg/newstuff/clipPath4.svg 830 831 // However read the comments to dig into applying SVG clippaths to HTML content here: 832 // github.com/Modernizr/Modernizr/issues/213#issuecomment-1149491 833 tests['svgclippaths'] = function() { 834 return !!document.createElementNS && /SVGClipPath/.test(toString.call(document.createElementNS(ns.svg, 'clipPath'))); 835 }; 836 837 /*>>webforms*/ 838 // input features and input types go directly onto the ret object, bypassing the tests loop. 839 // Hold this guy to execute in a moment. 840 function webforms() { 841 /*>>input*/ 842 // Run through HTML5's new input attributes to see if the UA understands any. 843 // We're using f which is the <input> element created early on 844 // Mike Taylr has created a comprehensive resource for testing these attributes 845 // when applied to all input types: 846 // miketaylr.com/code/input-type-attr.html 847 // spec: www.whatwg.org/specs/web-apps/current-work/multipage/the-input-element.html#input-type-attr-summary 848 849 // Only input placeholder is tested while textarea's placeholder is not. 850 // Currently Safari 4 and Opera 11 have support only for the input placeholder 851 // Both tests are available in feature-detects/forms-placeholder.js 852 Modernizr['input'] = (function( props ) { 853 for ( var i = 0, len = props.length; i < len; i++ ) { 854 attrs[ props[i] ] = !!(props[i] in inputElem); 855 } 856 if (attrs.list){ 857 // safari false positive's on datalist: webk.it/74252 858 // see also github.com/Modernizr/Modernizr/issues/146 859 attrs.list = !!(document.createElement('datalist') && window.HTMLDataListElement); 860 } 861 return attrs; 862 })('autocomplete autofocus list placeholder max min multiple pattern required step'.split(' ')); 863 /*>>input*/ 864 865 /*>>inputtypes*/ 866 // Run through HTML5's new input types to see if the UA understands any. 867 // This is put behind the tests runloop because it doesn't return a 868 // true/false like all the other tests; instead, it returns an object 869 // containing each input type with its corresponding true/false value 870 871 // Big thanks to @miketaylr for the html5 forms expertise. miketaylr.com/ 872 Modernizr['inputtypes'] = (function(props) { 873 874 for ( var i = 0, bool, inputElemType, defaultView, len = props.length; i < len; i++ ) { 875 876 inputElem.setAttribute('type', inputElemType = props[i]); 877 bool = inputElem.type !== 'text'; 878 879 // We first check to see if the type we give it sticks.. 880 // If the type does, we feed it a textual value, which shouldn't be valid. 881 // If the value doesn't stick, we know there's input sanitization which infers a custom UI 882 if ( bool ) { 883 884 inputElem.value = smile; 885 inputElem.style.cssText = 'position:absolute;visibility:hidden;'; 886 887 if ( /^range$/.test(inputElemType) && inputElem.style.WebkitAppearance !== undefined ) { 888 889 docElement.appendChild(inputElem); 890 defaultView = document.defaultView; 891 892 // Safari 2-4 allows the smiley as a value, despite making a slider 893 bool = defaultView.getComputedStyle && 894 defaultView.getComputedStyle(inputElem, null).WebkitAppearance !== 'textfield' && 895 // Mobile android web browser has false positive, so must 896 // check the height to see if the widget is actually there. 897 (inputElem.offsetHeight !== 0); 898 899 docElement.removeChild(inputElem); 900 901 } else if ( /^(search|tel)$/.test(inputElemType) ){ 902 // Spec doesn't define any special parsing or detectable UI 903 // behaviors so we pass these through as true 904 905 // Interestingly, opera fails the earlier test, so it doesn't 906 // even make it here. 907 908 } else if ( /^(url|email)$/.test(inputElemType) ) { 909 // Real url and email support comes with prebaked validation. 910 bool = inputElem.checkValidity && inputElem.checkValidity() === false; 911 912 } else { 913 // If the upgraded input compontent rejects the :) text, we got a winner 914 bool = inputElem.value != smile; 915 } 916 } 917 918 inputs[ props[i] ] = !!bool; 919 } 920 return inputs; 921 })('search tel url email datetime date month week time datetime-local number range color'.split(' ')); 922 /*>>inputtypes*/ 923 } 924 /*>>webforms*/ 925 926 927 // End of test definitions 928 // ----------------------- 929 930 931 932 // Run through all tests and detect their support in the current UA. 933 // todo: hypothetically we could be doing an array of tests and use a basic loop here. 934 for ( var feature in tests ) { 935 if ( hasOwnProp(tests, feature) ) { 936 // run the test, throw the return value into the Modernizr, 937 // then based on that boolean, define an appropriate className 938 // and push it into an array of classes we'll join later. 939 featureName = feature.toLowerCase(); 940 Modernizr[featureName] = tests[feature](); 941 942 classes.push((Modernizr[featureName] ? '' : 'no-') + featureName); 943 } 944 } 945 946 /*>>webforms*/ 947 // input tests need to run. 948 Modernizr.input || webforms(); 949 /*>>webforms*/ 950 951 952 /** 953 * addTest allows the user to define their own feature tests 954 * the result will be added onto the Modernizr object, 955 * as well as an appropriate className set on the html element 956 * 957 * @param feature - String naming the feature 958 * @param test - Function returning true if feature is supported, false if not 959 */ 960 Modernizr.addTest = function ( feature, test ) { 961 if ( typeof feature == 'object' ) { 962 for ( var key in feature ) { 963 if ( hasOwnProp( feature, key ) ) { 964 Modernizr.addTest( key, feature[ key ] ); 965 } 966 } 967 } else { 968 969 feature = feature.toLowerCase(); 970 971 if ( Modernizr[feature] !== undefined ) { 972 // we're going to quit if you're trying to overwrite an existing test 973 // if we were to allow it, we'd do this: 974 // var re = new RegExp("\\b(no-)?" + feature + "\\b"); 975 // docElement.className = docElement.className.replace( re, '' ); 976 // but, no rly, stuff 'em. 977 return Modernizr; 978 } 979 980 test = typeof test == 'function' ? test() : test; 981 982 if (enableClasses) { 983 docElement.className += ' ' + (test ? '' : 'no-') + feature; 984 } 985 Modernizr[feature] = test; 986 987 } 988 989 return Modernizr; // allow chaining. 990 }; 991 992 993 // Reset modElem.cssText to nothing to reduce memory footprint. 994 setCss(''); 995 modElem = inputElem = null; 996 997 /*>>shiv*/ 998 /*! HTML5 Shiv v3.6 | @afarkas @jdalton @jon_neal @rem | MIT/GPL2 Licensed */ 999 ;(function(window, document) { 1000 /*jshint evil:true */ 1001 /** Preset options */ 1002 var options = window.html5 || {}; 1003 1004 /** Used to skip problem elements */ 1005 var reSkip = /^<|^(?:button|map|select|textarea|object|iframe|option|optgroup)$/i; 1006 1007 /** Not all elements can be cloned in IE (this list can be shortend) **/ 1008 var saveClones = /^<|^(?:a|b|button|code|div|fieldset|form|h1|h2|h3|h4|h5|h6|i|iframe|img|input|label|li|link|ol|option|p|param|q|script|select|span|strong|style|table|tbody|td|textarea|tfoot|th|thead|tr|ul)$/i; 1009 1010 /** Detect whether the browser supports default html5 styles */ 1011 var supportsHtml5Styles; 1012 1013 /** Name of the expando, to work with multiple documents or to re-shiv one document */ 1014 var expando = '_html5shiv'; 1015 1016 /** The id for the the documents expando */ 1017 var expanID = 0; 1018 1019 /** Cached data for each document */ 1020 var expandoData = {}; 1021 1022 /** Detect whether the browser supports unknown elements */ 1023 var supportsUnknownElements; 1024 1025 (function() { 1026 try { 1027 var a = document.createElement('a'); 1028 a.innerHTML = '<xyz></xyz>'; 1029 //if the hidden property is implemented we can assume, that the browser supports basic HTML5 Styles 1030 supportsHtml5Styles = ('hidden' in a); 1031 1032 supportsUnknownElements = a.childNodes.length == 1 || (function() { 1033 // assign a false positive if unable to shiv 1034 (document.createElement)('a'); 1035 var frag = document.createDocumentFragment(); 1036 return ( 1037 typeof frag.cloneNode == 'undefined' || 1038 typeof frag.createDocumentFragment == 'undefined' || 1039 typeof frag.createElement == 'undefined' 1040 ); 1041 }()); 1042 } catch(e) { 1043 supportsHtml5Styles = true; 1044 supportsUnknownElements = true; 1045 } 1046 1047 }()); 1048 1049 /*--------------------------------------------------------------------------*/ 1050 1051 /** 1052 * Creates a style sheet with the given CSS text and adds it to the document. 1053 * @private 1054 * @param {Document} ownerDocument The document. 1055 * @param {String} cssText The CSS text. 1056 * @returns {StyleSheet} The style element. 1057 */ 1058 function addStyleSheet(ownerDocument, cssText) { 1059 var p = ownerDocument.createElement('p'), 1060 parent = ownerDocument.getElementsByTagName('head')[0] || ownerDocument.documentElement; 1061 1062 p.innerHTML = 'x<style>' + cssText + '</style>'; 1063 return parent.insertBefore(p.lastChild, parent.firstChild); 1064 } 1065 1066 /** 1067 * Returns the value of `html5.elements` as an array. 1068 * @private 1069 * @returns {Array} An array of shived element node names. 1070 */ 1071 function getElements() { 1072 var elements = html5.elements; 1073 return typeof elements == 'string' ? elements.split(' ') : elements; 1074 } 1075 1076 /** 1077 * Returns the data associated to the given document 1078 * @private 1079 * @param {Document} ownerDocument The document. 1080 * @returns {Object} An object of data. 1081 */ 1082 function getExpandoData(ownerDocument) { 1083 var data = expandoData[ownerDocument[expando]]; 1084 if (!data) { 1085 data = {}; 1086 expanID++; 1087 ownerDocument[expando] = expanID; 1088 expandoData[expanID] = data; 1089 } 1090 return data; 1091 } 1092 1093 /** 1094 * returns a shived element for the given nodeName and document 1095 * @memberOf html5 1096 * @param {String} nodeName name of the element 1097 * @param {Document} ownerDocument The context document. 1098 * @returns {Object} The shived element. 1099 */ 1100 function createElement(nodeName, ownerDocument, data){ 1101 if (!ownerDocument) { 1102 ownerDocument = document; 1103 } 1104 if(supportsUnknownElements){ 1105 return ownerDocument.createElement(nodeName); 1106 } 1107 if (!data) { 1108 data = getExpandoData(ownerDocument); 1109 } 1110 var node; 1111 1112 if (data.cache[nodeName]) { 1113 node = data.cache[nodeName].cloneNode(); 1114 } else if (saveClones.test(nodeName)) { 1115 node = (data.cache[nodeName] = data.createElem(nodeName)).cloneNode(); 1116 } else { 1117 node = data.createElem(nodeName); 1118 } 1119 1120 // Avoid adding some elements to fragments in IE < 9 because 1121 // * Attributes like `name` or `type` cannot be set/changed once an element 1122 // is inserted into a document/fragment 1123 // * Link elements with `src` attributes that are inaccessible, as with 1124 // a 403 response, will cause the tab/window to crash 1125 // * Script elements appended to fragments will execute when their `src` 1126 // or `text` property is set 1127 return node.canHaveChildren && !reSkip.test(nodeName) ? data.frag.appendChild(node) : node; 1128 } 1129 1130 /** 1131 * returns a shived DocumentFragment for the given document 1132 * @memberOf html5 1133 * @param {Document} ownerDocument The context document. 1134 * @returns {Object} The shived DocumentFragment. 1135 */ 1136 function createDocumentFragment(ownerDocument, data){ 1137 if (!ownerDocument) { 1138 ownerDocument = document; 1139 } 1140 if(supportsUnknownElements){ 1141 return ownerDocument.createDocumentFragment(); 1142 } 1143 data = data || getExpandoData(ownerDocument); 1144 var clone = data.frag.cloneNode(), 1145 i = 0, 1146 elems = getElements(), 1147 l = elems.length; 1148 for(;i<l;i++){ 1149 clone.createElement(elems[i]); 1150 } 1151 return clone; 1152 } 1153 1154 /** 1155 * Shivs the `createElement` and `createDocumentFragment` methods of the document. 1156 * @private 1157 * @param {Document|DocumentFragment} ownerDocument The document. 1158 * @param {Object} data of the document. 1159 */ 1160 function shivMethods(ownerDocument, data) { 1161 if (!data.cache) { 1162 data.cache = {}; 1163 data.createElem = ownerDocument.createElement; 1164 data.createFrag = ownerDocument.createDocumentFragment; 1165 data.frag = data.createFrag(); 1166 } 1167 1168 1169 ownerDocument.createElement = function(nodeName) { 1170 //abort shiv 1171 if (!html5.shivMethods) { 1172 return data.createElem(nodeName); 1173 } 1174 return createElement(nodeName, ownerDocument, data); 1175 }; 1176 1177 ownerDocument.createDocumentFragment = Function('h,f', 'return function(){' + 1178 'var n=f.cloneNode(),c=n.createElement;' + 1179 'h.shivMethods&&(' + 1180 // unroll the `createElement` calls 1181 getElements().join().replace(/\w+/g, function(nodeName) { 1182 data.createElem(nodeName); 1183 data.frag.createElement(nodeName); 1184 return 'c("' + nodeName + '")'; 1185 }) + 1186 ');return n}' 1187 )(html5, data.frag); 1188 } 1189 1190 /*--------------------------------------------------------------------------*/ 1191 1192 /** 1193 * Shivs the given document. 1194 * @memberOf html5 1195 * @param {Document} ownerDocument The document to shiv. 1196 * @returns {Document} The shived document. 1197 */ 1198 function shivDocument(ownerDocument) { 1199 if (!ownerDocument) { 1200 ownerDocument = document; 1201 } 1202 var data = getExpandoData(ownerDocument); 1203 1204 if (html5.shivCSS && !supportsHtml5Styles && !data.hasCSS) { 1205 data.hasCSS = !!addStyleSheet(ownerDocument, 1206 // corrects block display not defined in IE6/7/8/9 1207 'article,aside,figcaption,figure,footer,header,hgroup,nav,section{dis
1207play:block}' + 1208 // adds styling not present in IE6/7/8/9 1209 'mark{background:#FF0;color:#000}' 1210 ); 1211 } 1212 if (!supportsUnknownElements) { 1213 shivMethods(ownerDocument, data); 1214 } 1215 return ownerDocument; 1216 } 1217 1218 /*--------------------------------------------------------------------------*/ 1219 1220 /** 1221 * The `html5` object is exposed so that more elements can be shived and 1222 * existing shiving can be detected on iframes. 1223 * @type Object 1224 * @example 1225 * 1226 * // options can be changed before the script is included 1227 * html5 = { 'elements': 'mark section', 'shivCSS': false, 'shivMethods': false }; 1228 */ 1229 var html5 = { 1230 1231 /** 1232 * An array or space separated string of node names of the elements to shiv. 1233 * @memberOf html5 1234 * @type Array|String 1235 */ 1236 'elements': options.elements || 'abbr article aside audio bdi canvas data datalist details figcaption figure footer header hgroup mark meter nav output progress section summary time video', 1237 1238 /** 1239 * A flag to indicate that the HTML5 style sheet should be inserted. 1240 * @memberOf html5 1241 * @type Boolean 1242 */ 1243 'shivCSS': (options.shivCSS !== false), 1244 1245 /** 1246 * Is equal to true if a browser supports creating unknown/HTML5 elements 1247 * @memberOf html5 1248 * @type boolean 1249 */ 1250 'supportsUnknownElements': supportsUnknownElements, 1251 1252 /** 1253 * A flag to indicate that the document's `createElement` and `createDocumentFragment` 1254 * methods should be overwritten. 1255 * @memberOf html5 1256 * @type Boolean 1257 */ 1258 'shivMethods': (options.shivMethods !== false), 1259 1260 /** 1261 * A string to describe the type of `html5` object ("default" or "default print"). 1262 * @memberOf html5
1263 * @type String 1264 */ 1265 'type': 'default', 1266 1267 // shivs the document according to the specified `html5` object options 1268 'shivDocument': shivDocument, 1269 1270 //creates a shived element 1271 createElement: createElement, 1272 1273 //creates a shived documentFragment 1274 createDocumentFragment: createDocumentFragment 1275 }; 1276 1277 /*--------------------------------------------------------------------------*/ 1278 1279 // expose html5 1280 window.html5 = html5; 1281 1282 // shiv the document 1283 shivDocument(document); 1284 1285 }(this, document)); 1286 /*>>shiv*/ 1287 1288 // Assign private properties to the return object with prefix 1289 Modernizr._version = version; 1290 1291 // expose these for the plugin API. Look in the source for how to join() them against your input 1292 /*>>prefixes*/ 1293 Modernizr._prefixes = prefixes; 1294 /*>>prefixes*/ 1295 /*>>domprefixes*/ 1296 Modernizr._domPrefixes = domPrefixes; 1297 Modernizr._cssomPrefixes = cssomPrefixes; 1298 /*>>domprefixes*/ 1299 1300 /*>>mq*/ 1301 // Modernizr.mq tests a given media query, live against the current state of the window 1302 // A few important notes: 1303 // * If a browser does not support media queries at all (eg. oldIE) the mq() will always return false 1304 // * A max-width or orientation query will be evaluated against the current state, which may change later. 1305 // * You must specify values. Eg. If you are testing support for the min-width media query use: 1306 // Modernizr.mq('(min-width:0)') 1307 // usage: 1308 // Modernizr.mq('only screen and (max-width:768)') 1309 Modernizr.mq = testMediaQuery; 1310 /*>>mq*/ 1311 1312 /*>>hasevent*/ 1313 // Modernizr.hasEvent() detects support for a given event, with an optional element to test on 1314 // Modernizr.hasEvent('gesturestart', elem) 1315 Modernizr.hasEvent = isEventSupported; 1316 /*>>hasevent*/ 1317 1318 /*>>testprop*/ 1319 // Modernizr.testProp() investigates whether a given style property is recognized 1320 // Note that the property names must be provided in the camelCase variant. 1321 // Modernizr.testProp('pointerEvents') 1322 Modernizr.testProp = function(prop){ 1323 return testProps([prop]); 1324 }; 1325 /*>>testprop*/ 1326 1327 /*>>testallprops*/ 1328 // Modernizr.testAllProps() investigates whether a given style property, 1329 // or any of its vendor-prefixed variants, is recognized 1330 // Note that the property names must be provided in the camelCase variant. 1331 // Modernizr.testAllProps('boxSizing') 1332 Modernizr.testAllProps = testPropsAll; 1333 /*>>testallprops*/ 1334 1335 1336 /*>>teststyles*/ 1337 // Modernizr.testStyles() allows you to add custom styles to the document and test an element afterwards 1338 // Modernizr.testStyles('#modernizr { position:absolute }', function(elem, rule){ ... }) 1339 Modernizr.testStyles = injectElementWithStyles; 1340 /*>>teststyles*/ 1341 1342 1343 /*>>prefixed*/ 1344 // Modernizr.prefixed() returns the prefixed or nonprefixed property name variant of your input 1345 // Modernizr.prefixed('boxSizing') // 'MozBoxSizing' 1346 1347 // Properties must be passed as dom-style camelcase, rather than `box-sizing` hypentated style. 1348 // Return values will also be the camelCase variant, if you need to translate that to hypenated style use: 1349 // 1350 // str.replace(/([A-Z])/g, function(str,m1){ return '-' + m1.toLowerCase(); }).replace(/^ms-/,'-ms-'); 1351 1352 // If you're trying to ascertain which transition end event to bind to, you might do something like... 1353 // 1354 // var transEndEventNames = { 1355 // 'WebkitTransition' : 'webkitTransitionEnd', 1356 // 'MozTransition' : 'transitionend', 1357 // 'OTransition' : 'oTransitionEnd', 1358 // 'msTransition' : 'MSTransitionEnd', 1359 // 'transition' : 'transitionend' 1360 // }, 1361 // transEndEventName = transEndEventNames[ Modernizr.prefixed('transition') ]; 1362 1363 Modernizr.prefixed = function(prop, obj, elem){ 1364 if(!obj) { 1365 return testPropsAll(prop, 'pfx'); 1366 } else { 1367 // Testing DOM property e.g. Modernizr.prefixed('requestAnimationFrame', window) // 'mozRequestAnimationFrame' 1368 return testPropsAll(prop, obj, elem); 1369 } 1370 }; 1371 /*>>prefixed*/ 1372 1373 1374 /*>>cssclasses*/ 1375 // Remove "no-js" class from <html> element, if it exists: 1376 docElement.className = docElement.className.replace(/(^|\s)no-js(\s|$)/, '$1$2') + 1377 1378 // Add the new classes to the <html> element. 1379 (enableClasses ? ' js ' + classes.join(' ') : ''); 1380 /*>>cssclasses*/ 1381 1382 return Modernizr; 1383 1384})(this, this.document);
Line numbers count LF bytes from the start of the resource, as the search results do. Vendor segments are library code the classifier recognised; they are stored but not indexed. Bytes are shown as Latin1 characters, one per byte.