Source/WebCore/features.json

   1 {
   2     "specification": [
   3     {
   4         "name": "CSS Grid Layout Level 1",
   5         "status": {
   6             "status": "In Development",
   7             "enabled-by-default": true
   8         },
   9         "url": "http://dev.w3.org/csswg/css-grid/",
  10         "webkit-url": "https://bugs.webkit.org/show_bug.cgi?id=60731",
  11         "keywords": ["css grid layout", "css grid", "grid"],
  12         "category": "css",
  13         "contact": {
  14             "name": "Sergio Villar Senin",
  15             "email": "svillar@igalia.com"
  16         }
  17     },
  18     {
  19         "name": "CSS Inline Layout Module Level 3",
  20         "status": {
  21             "status": "In Development",
  22             "enabled-by-default": true
  23         },
  24         "url": "http://dev.w3.org/csswg/css-inline/",
  25         "keywords": ["css inline layout", "css inline", "inline"],
  26         "category": "css"
  27     },
  28     {
  29         "name": "CSS Media Queries Level 4",
  30         "url": "http://dev.w3.org/csswg/mediaqueries-4/",
  31         "keywords": ["css media queries", "media queries"],
  32         "category": "css"
  33     },
  34     {
  35         "name": "CSS Painting API Level 1",
  36         "status": {
  37             "status": "Under Consideration"
  38         },
  39         "url": "https://drafts.css-houdini.org/css-paint-api/",
  40         "keywords": ["css", "houdini"],
  41         "category": "css"
  42     },
  43     {
  44         "name": "CSS Positioned Layout Module Level 3",
  45         "url": "http://dev.w3.org/csswg/css-position/",
  46         "keywords": ["css positioning"],
  47         "category": "css"
  48     },
  49     {
  50         "name": "CSS Properties and Values API Level 1",
  51         "status": {
  52             "status": "Under Consideration"
  53         },
  54         "url": "https://drafts.css-houdini.org/css-properties-values-api/",
  55         "keywords": ["css", "houdini"],
  56         "category": "css"
  57     },
  58     {
  59         "name": "CSS Scroll Snap Points Module Level 1",
  60         "status": {
  61             "status": "In Development",
  62             "enabled-by-default": true
  63         },
  64         "url": "http://dev.w3.org/csswg/css-snappoints/",
  65         "webkit-url": "https://bugs.webkit.org/show_bug.cgi?id=134283",
  66         "keywords": ["css scroll snap points", "scroll snap", "snap points"],
  67         "category": "css",
  68         "contact": {
  69             "name": "Brent Fulgham",
  70             "email": "bfulgham@apple.com"
  71         }
  72     },
  73     {
  74         "name": "CSS Selectors Level 4",
  75         "url": "http://dev.w3.org/csswg/selectors-4/",
  76         "keywords": ["css selectors", "selectors"],
  77         "category": "css",
  78         "contact": {
  79             "name": "Benjamin Poulain",
  80             "twitter": "@awfulben",
  81             "email": "benjamin@webkit.org"
  82         }
  83     },
  84     {
  85         "name": "CSS Shapes Level 1",
  86         "url": "http://www.w3.org/TR/css-shapes-1/",
  87         "keywords": ["css shapes", "shapes"],
  88         "category": "css"
  89     },
  90     {
  91         "name": "CSS Variables",
  92         "status": {
  93             "status": "Done",
  94             "enabled-by-default": true
  95         },
  96         "url": "https://www.w3.org/TR/css-variables/",
  97         "keywords": ["css variable", "css custom property"],
  98         "category": "css",
  99         "description": "Allows developers to define reusable custom property values.",
 100         "contact": {
 101             "name": "Jon Davis",
 102             "twitter": "@jonathandavis",
 103             "email": "web-evangelist@apple.com"
 104         }
 105     },
 106     {
 107         "name": "CSS Will Change",
 108         "status": {
 109             "status": "Done",
 110             "enabled-by-default": true
 111         },
 112         "url": "https://drafts.csswg.org/css-will-change/",
 113         "keywords": ["css willchange", "css will-change"],
 114         "category": "css",
 115         "contact": {
 116             "name": "Simon Fraser",
 117             "twitter": "@smfr"
 118         }
 119     },
 120     {
 121         "name": "DOM",
 122         "url": "https://dom.spec.whatwg.org",
 123         "keywords": ["dom", "dom4"],
 124         "category": "html"
 125     },
 126     {
 127         "name": "Fetch API",
 128         "status": {
 129             "status": "In Development"
 130         },
 131         "url": "https://fetch.spec.whatwg.org",
 132         "webkit-url": "https://bugs.webkit.org/show_bug.cgi?id=151937",
 133         "keywords": ["fetch", "http", "cors", "request", "response", "header"],
 134         "category": "webapps",
 135         "description": "An underlying unified architecture for making resource requests.",
 136         "contact": {
 137             "name": "Jon Davis",
 138             "twitter": "@jonathandavis",
 139             "email": "web-evangelist@apple.com"
 140         }
 141     },
 142     {
 143         "name": "Filter Effects Module Level 2",
 144         "url": "http://dev.w3.org/fxtf/filters-2/",
 145         "keywords": ["css filters", "filter effects", "filters"],
 146         "category": "css"
 147     },
 148     {
 149         "name": "HTML5",
 150         "url": "https://html.spec.whatwg.org",
 151         "keywords": ["html", "html5", "html5.1"],
 152         "category": "html"
 153     },
 154     {
 155         "name": "IndexedDB",
 156         "status": {
 157             "status": "Partial Support"
 158         },
 159         "url": "http://www.w3.org/TR/IndexedDB/",
 160         "keywords": ["indexeddb", "index db"],
 161         "description": "A standard interface to a browser database of records for simple values and objects.",
 162         "contact": {
 163             "name": "Jon Davis",
 164             "twitter": "@jonathandavis",
 165             "email": "web-evangelist@apple.com"
 166         }
 167     },
 168     {
 169         "name": "Service Workers",
 170         "status": {
 171             "status": "Under Consideration"
 172         },
 173         "url": "http://www.w3.org/TR/2015/WD-service-workers-20150625/",
 174         "keywords": ["service workers"],
 175         "category": "webapps",
 176         "description": "A method for browsers to run JavaScript in the background to handle network requests and manage cached responses. Service Workers offers a replacement for Application Cache.",
 177         "contact": {
 178             "name": "Jon Davis",
 179             "twitter": "@jonathandavis",
 180             "email": "web-evangelist@apple.com"
 181         }
 182     },
 183     {
 184         "name": "Streams",
 185         "url": "https://streams.spec.whatwg.org",
 186         "keywords": ["streams api"],
 187         "category": "webapps"
 188     },
 189     {
 190         "name": "Web Components",
 191         "status": {
 192             "status": "Partial Support"
 193         },
 194         "url": "http://www.w3.org/wiki/WebComponents/",
 195         "keywords": ["web components", "shadow dom", "html imports", "custom elements", "template element"],
 196         "category": "webapps",
 197         "description": "A collection of technologies to improve modularization of DOM subtrees.",
 198         "contact": {
 199             "name": "Ryosuke Niwa",
 200             "twitter": "@RyosukeNiwa",
 201             "email": "rniwa@webkit.org"
 202         }
 203     },
 204     {
 205         "name": "WebCrypto",
 206         "status": {
 207             "status": "Partial Support",
 208             "enabled-by-default": true
 209         },
 210         "url": "http://www.w3.org/TR/WebCryptoAPI/",
 211         "webkit-url": "https://bugs.webkit.org/show_bug.cgi?id=122679",
 212         "keywords": ["webcrypto"],
 213         "category": "webapps",
 214         "description": "A JavaScript API for web applications to perform cryptographic operations.",
 215         "contact": {
 216             "name": "Jon Davis",
 217             "twitter": "@jonathandavis",
 218             "email": "web-evangelist@apple.com"
 219         }
 220     },
 221     {
 222         "name": "WebGL 1",
 223         "status": {
 224             "status": "Done",
 225             "enabled-by-default": true
 226         },
 227         "url": "https://www.khronos.org/registry/webgl/specs/1.0/",
 228         "keywords": ["webgl"],
 229         "category": "html"
 230     },
 231     {
 232         "name": "WebGL 2",
 233         "status": {
 234             "status": "In Development",
 235             "enabled-by-default": true
 236         },
 237         "url": "https://www.khronos.org/registry/webgl/specs/2.0/",
 238         "keywords": ["webgl"],
 239         "category": "html"
 240     },
 241     {
 242         "name": "WebRTC",
 243         "status": {
 244             "status": "In Development"
 245         },
 246         "url": "http://www.w3.org/TR/webrtc/",
 247         "webkit-url": "https://bugs.webkit.org/show_bug.cgi?id=124288",
 248         "keywords": ["webrtc"],
 249         "category": "webapps",
 250         "description": "An API to facilitate real-time communication for browser-to-browser applications.",
 251         "contact": {
 252             "name": "Jon Davis",
 253             "twitter": "@jonathandavis",
 254             "email": "web-evangelist@apple.com"
 255         }
 256     }
 257     ],
 258
 259     "features": [
 260     {
 261         "name": "CSS Selector :any-link",
 262         "status": {
 263             "status": "Done",
 264             "enabled-by-default": true
 265         },
 266         "url": "http://dev.w3.org/csswg/selectors-4/#the-any-link-pseudo",
 267         "specification": "CSS Selectors Level 4",
 268         "description": "The pseudo class :any-link matches any element that would match :link or :visisted.",
 269         "comment": "A prefix version :-webkit-any-link has been available for a while but it was not 100% compliant to the specification.",
 270         "contact": {
 271             "name": "Benjamin Poulain",
 272             "twitter": "@awfulben",
 273             "email": "benjamin@webkit.org"
 274         }
 275     },
 276     {
 277         "name": "CSS Selector :lang() level 4",
 278         "status": {
 279             "status": "Done",
 280             "enabled-by-default": true
 281         },
 282         "url": "http://dev.w3.org/csswg/selectors-4/#the-lang-pseudo",
 283         "specification": "CSS Selectors Level 4",
 284         "description": "The selector :lang() is extended in level 4 to support a list of language range, each range can contain a wildcard. For example: p:lang(\"*-be\", \"en\")."
 285     },
 286     {
 287         "name": "CSS Selector :matches()",
 288         "status": {
 289             "status": "Done",
 290             "enabled-by-default": true
 291         },
 292         "url": "http://dev.w3.org/csswg/selectors-4/#matches",
 293         "specification": "CSS Selectors Level 4",
 294         "description": "The selector :matches() takes a selector list as argument and matches an element if any of them matches (e.g. :matches(article > section, #target)). When used for styling, the specificity of :matches() is the higest specificity of all selectors in the selector list.",
 295         "comment": "The pseudo classes <em>:visited</em> and <em>:link</em> are not supported inside :matches().",
 296         "contact": {
 297             "name": "Benjamin Poulain",
 298             "twitter": "@awfulben",
 299             "email": "benjamin@webkit.org"
 300         }
 301     },
 302     {
 303         "name": "CSS Selector :not() level 4",
 304         "status": {
 305             "status": "Done",
 306             "enabled-by-default": true
 307         },
 308         "url": "http://dev.w3.org/csswg/selectors-4/#negation",
 309         "specification": "CSS Selectors Level 4",
 310         "description": "The selector :not() in level 4 supports full selector lists as argument. For example: :not(:any-link >> img, :any-link >> picture).",
 311         "comment": "The pseudo classes <em>:visited</em> and <em>:link</em> are not supported inside :not().",
 312         "contact": {
 313             "name": "Benjamin Poulain",
 314             "twitter": "@awfulben",
 315             "email": "benjamin@webkit.org"
 316         }
 317     },
 318     {
 319         "name": "CSS Selector :nth-child(An+B of selector list) and :nth-last-child(An+B of selector list)",
 320         "status": {
 321             "status": "Done",
 322             "enabled-by-default": true
 323         },
 324         "url": "http://dev.w3.org/csswg/selectors-4/#the-nth-child-pseudo",
 325         "specification": "CSS Selectors Level 4",
 326         "description": "The pseudo classes :nth-child() and :nth-last-child() now supports a selector list that filters what to count. For example: \":nth-child(even of .visible)\".",
 327         "comment": "The pseudo classes <em>:visited</em> and <em>:link</em> are not supported inside :nth-child() and :nth-last-child().",
 328         "contact": {
 329             "name": "Benjamin Poulain",
 330             "twitter": "@awfulben",
 331             "email": "benjamin@webkit.org"
 332         }
 333     },
 334     {
 335         "name": "CSS Selector :placeholder-shown",
 336         "status": {
 337             "status": "Done",
 338             "enabled-by-default": true
 339         },
 340         "url": "http://dev.w3.org/csswg/selectors-4/#placeholder",
 341         "specification": "CSS Selectors Level 4",
 342         "description": "The selector :placeholder-shown matches any input element that has a visible placeholder.",
 343         "comment": "Styling the placeholder can be done through the WebKit pseudo-element \"::-webkit-input-placeholder\".",
 344         "contact": {
 345             "name": "Benjamin Poulain",
 346             "twitter": "@awfulben",
 347             "email": "benjamin@webkit.org"
 348         }
 349     },
 350     {
 351         "name": "Case-insensitive attribute selectors",
 352         "status": {
 353             "status": "Done",
 354             "enabled-by-default": true
 355         },
 356         "url": "http://dev.w3.org/csswg/selectors-4/#attribute-case",
 357         "specification": "CSS Selectors Level 4",
 358         "description": "Any attribute selector that test a value can take a flag \"i\" to use case insensitive checks. For example: input[type=number i] test the value \"number\" case-insensitively.",
 359         "contact": {
 360             "name": "Benjamin Poulain",
 361             "twitter": "@awfulben",
 362             "email": "benjamin@webkit.org"
 363         }
 364     },
 365     {
 366         "name": "Custom Elements",
 367         "status": {
 368             "status": "In Development"
 369         },
 370         "url": "http://w3c.github.io/webcomponents/spec/custom/",
 371         "webkit-url": "https://bugs.webkit.org/show_bug.cgi?id=150225",
 372         "specification": "Web Components",
 373         "description": "Define a custom HTML tag and associate it with an ES6 class.",
 374         "contact": {
 375             "name": "Ryosuke Niwa",
 376             "twitter": "@RyosukeNiwa",
 377             "email": "rniwa@webkit.org"
 378         }
 379     },
 380     {
 381         "name": "Element.closest()",
 382         "status": {
 383             "status": "Done",
 384             "enabled-by-default": true
 385         },
 386         "url": "https://dom.spec.whatwg.org/#dom-element-closest",
 387         "documentation-url": "https://developer.mozilla.org/en-US/docs/Web/API/Element/closest",
 388         "webkit-url": "https://bugs.webkit.org/show_bug.cgi?id=137418",
 389         "specification": "DOM",
 390         "description": "Find the closest ancestor matching the selector passed as argument. The element itself is returned if it matches the selector.",
 391         "contact": {
 392             "name": "Benjamin Poulain",
 393             "twitter": "@awfulben",
 394             "email": "benjamin@webkit.org"
 395         }
 396     },
 397     {
 398         "name": "Filter Effects backdrop-filter propery",
 399         "status": {
 400             "status": "Done",
 401             "enabled-by-default": true
 402         },
 403         "url": "http://dev.w3.org/fxtf/filters-2/#propdef-backdrop-filter",
 404         "specification": "Filter Effects Module Level 2",
 405         "description": "This property specifies styling for filters applied to the backdrop of an element."
 406     },
 407     {
 408         "name": "Force Click Events",
 409         "status": {
 410             "status": "Prototyping",
 411             "enabled-by-default": true
 412         },
 413         "webkit-url": "https://bugs.webkit.org/show_bug.cgi?id=142836",
 414         "description": "Provide the events necessary to handle force click events in the page, overriding the default behavior."
 415     },
 416     {
 417         "name": "HTML imports",
 418         "status": {
 419             "status": "Not Considering"
 420         },
 421         "url": "http://w3c.github.io/webcomponents/spec/imports/",
 422         "specification": "Web Components",
 423         "description": "Includes resusable HTML documents in other HTML documents.",
 424         "comment": "There are concerns about the disconnect between this specification and ES6 Modules. WebKit has no intent to support the current specification.",
 425         "contact": {
 426             "name": "Jon Davis",
 427             "twitter": "@jonathandavis",
 428             "email": "web-evangelist@apple.com"
 429         }
 430     },
 431     {
 432         "name": "Initial Letter",
 433         "status": {
 434             "status": "Done",
 435             "enabled-by-default": true
 436         },
 437         "url": "http://dev.w3.org/csswg/css-inline/#propdef-initial-letter",
 438         "specification": "CSS Inline Layout Module Level 3",
 439         "description": "This property specifies styling for dropped, raised, and sunken initial letters."
 440     },
 441     {
 442         "name": "Interaction Media Features (pointer, hover, any-pointer, any-hover)",
 443         "status": {
 444             "status": "Done",
 445             "enabled-by-default": true
 446         },
 447         "url": "http://dev.w3.org/csswg/mediaqueries-4/#mf-interaction",
 448         "specification": "CSS Media Queries Level 4",
 449         "description": "The \"pointer\" media defines how percise the pointing device is. The \"hover\" media defines the ability of the poiting device to hover elements."
 450     },
 451     {
 452         "name": "MicroData",
 453         "status": {
 454             "status": "Removed"
 455         },
 456         "url": "https://html.spec.whatwg.org/multipage/microdata.html",
 457         "webkit-url": "https://bugs.webkit.org/show_bug.cgi?id=119480",
 458         "specification": "HTML5",
 459         "comment": "WebKit used to support MicroData. The feature never gained any traction and was eventually removed to clean up the codebase."
 460     },
 461     {
 462         "name": "Navigator.hardwareConcurrency",
 463         "status": {
 464             "status": "Done",
 465             "enabled-by-default": true
 466         },
 467         "url": "https://wiki.whatwg.org/wiki/Navigator_HW_Concurrency",
 468         "webkit-url": "http://trac.webkit.org/changeset/169017",
 469         "description": "Navigator.hardwareConcurrency provides the total number of logical processors available to the user agent."
 470     },
 471     {
 472         "name": "Picture element",
 473         "status": {
 474             "status": "In Development",
 475             "enabled-by-default": false
 476         },
 477         "url": "https://html.spec.whatwg.org/multipage/embedded-content.html#the-picture-element",
 478         "webkit-url": "https://bugs.webkit.org/show_bug.cgi?id=116963",
 479         "specification": "HTML5",
 480         "description": "Enable handling the art-direction responsive images use-case by defining multiple image sources in markup",
 481         "contact": {
 482             "name": "Yoav Weiss",
 483             "twitter": "@yoavweiss",
 484             "email": "yoav@yoav.ws"
 485         }
 486     },
 487     {
 488         "name": "Position: sticky",
 489         "status": {
 490             "status": "Done",
 491             "enabled-by-default": true
 492         },
 493         "url": "http://dev.w3.org/csswg/css-position/#sticky-pos",
 494         "specification": "CSS Positioned Layout Module Level 3",
 495         "description": "Sticky positioning provides a way to position element out of the normal flow when scrolling. Unlike solutions based on JavaScript, the change of position is synchronized with scrolling.",
 496         "comment": "The feature is prefixed with <em>-webkit-</em>. There are some remaining issues to resolve in the specification."
 497     },
 498     {
 499         "name": "Readable Streams",
 500         "status": {
 501             "status": "In Development",
 502             "enabled-by-default": true
 503         },
 504         "url": "https://streams.spec.whatwg.org/#rs",
 505         "webkit-url": "https://bugs.webkit.org/show_bug.cgi?id=138967",
 506         "specification": "Streams",
 507         "comment": "The ReadableStream and ReadableStreamReader interfaces are available but not functional."
 508     },
 509     {
 510         "name": "Shadow DOM",
 511         "status": {
 512             "status": "In Development"
 513         },
 514         "url": "http://w3c.github.io/webcomponents/spec/shadow/",
 515         "webkit-url": "https://bugs.webkit.org/show_bug.cgi?id=148695",
 516         "specification": "Web Components",
 517         "description": "Functional encapsulation of HTML and CSS for Web Components.",
 518         "contact": {
 519             "name": "Ryosuke Niwa",
 520             "twitter": "@RyosukeNiwa",
 521             "email": "rniwa@webkit.org"
 522         }
 523     },
 524     {
 525         "name": "Shape outside for floats",
 526         "status": {
 527             "status": "In Development",
 528             "enabled-by-default": true
 529         },
 530         "url": "http://www.w3.org/TR/css-shapes-1/",
 531         "specification": "CSS Shapes Level 1",
 532         "description": "CSS Shapes describe geometric shapes for use in CSS. For Level 1, CSS Shapes can be applied to floats.",
 533         "comment": "The implementation is feature complete and shipping, but is -webkit prefixed."
 534     },
 535     {
 536         "name": "Shared Web Workers",
 537         "status": {
 538             "status": "Removed"
 539         },
 540         "url": "https://html.spec.whatwg.org/multipage/workers.html#shared-workers-introduction",
 541         "webkit-url": "https://bugs.webkit.org/show_bug.cgi?id=140344",
 542         "specification": "HTML5",
 543         "comment": "The implementation of Shared Web Workers was imposing undesirable constraints on the engine. The feature never gained any adoption and was eventually removed from the engine."
 544     },
 545     {
 546         "name": "Srcset w descriptor and related sizes attribute",
 547         "status": {
 548             "status": "Done",
 549             "enabled-by-default": true
 550         },
 551         "url": "https://html.spec.whatwg.org/multipage/embedded-content.html#the-img-element",
 552         "webkit-url": "https://bugs.webkit.org/show_bug.cgi?id=133620",
 553         "specification": "HTML5",
 554         "description": "Enable handling the variable width responsive images use-case by defining multiple image resources in markup",
 555         "contact": {
 556             "name": "Yoav Weiss",
 557             "twitter": "@yoavweiss",
 558             "email": "yoav@yoav.ws"
 559         }
 560     },
 561     {
 562         "name": "Srcset x descriptor",
 563         "status": {
 564             "status": "Done",
 565             "enabled-by-default": true
 566         },
 567         "url": "https://html.spec.whatwg.org/multipage/embedded-content.html#the-img-element",
 568         "webkit-url": "https://bugs.webkit.org/show_bug.cgi?id=110252",
 569         "specification": "HTML5",
 570         "description": "Enable handling the fixed width responsive images use-case by defining multiple image resources in markup",
 571         "contact": {
 572             "name": "Yoav Weiss",
 573             "twitter": "@yoavweiss",
 574             "email": "yoav@yoav.ws"
 575         }
 576     },
 577     {
 578         "name": "Template Element",
 579         "status": {
 580             "status": "Done",
 581             "enabled-by-default": true
 582         },
 583         "url": "http://www.w3.org/TR/html5/scripting-1.html#the-template-element",
 584         "webkit-url": "https://bugs.webkit.org/show_bug.cgi?id=124637",
 585         "documentation-url": "https://developer.mozilla.org/en-US/docs/Web/HTML/Element/template",
 586         "specification": "Web Components",
 587         "description": "Declares HTML fragments that can be cloned and inserted into the document by a script."
 588     }
 589     ]
 590 }