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 25window.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 = ['­', '<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 val
797id. 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]*?}
932)', '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);
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.