-
Notifications
You must be signed in to change notification settings - Fork 126
/
Copy pathindex.html
16762 lines (16749 loc) · 693 KB
/
index.html
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
<!doctype html>
<html lang="en-US">
<head>
<meta charset="utf-8" />
<title>HTML Accessibility API Mappings 1.0</title>
<script src="https://www.w3.org/Tools/respec/respec-w3c" class="remove" defer="defer"></script>
<script src="../common/script/resolveReferences.js" class="remove"></script>
<script src="../common/script/utility.js" class="remove"></script>
<script src="../common/biblio.js" class="remove" defer="defer"></script>
<script src="../common/script/participants.js" class="remove"></script>
<link href="../common/css/mapping-tables.css" rel="stylesheet" type="text/css" />
<link href="../common/css/common.css" rel="stylesheet" type="text/css" />
<link href="css/html-aam.css" rel="stylesheet" />
<script class="remove">
var respecConfig = {
group: "aria",
github: "w3c/html-aam/",
doJsonLd: true,
// document info
specStatus: "ED",
shortName: "html-aam-1.0",
//publishDate: "2009-08-06",
//previousMaturity: "WD",
//previousPublishDate: "2012-10-25",
//previousURI: "http://www.w3.org/TR/2012/WD-html-aapi-20121025/",
copyrightStart: "2015",
edDraftURI: "https://w3c.github.io/html-aam/",
// lcEnd: "2010-08-06",
tocIntroductory: true,
maxTocLevel: 2,
// editors
editors: [{ name: "Scott O'Hara", company: "Microsoft", companyURL: "https://www.microsoft.com/", w3cid: 103856 }],
formerEditors: [
{ name: "Steve Faulkner", company: "TPGi", companyURL: "https://www.tpgi.com/", w3cid: 35007, note: "until May 2023" },
{ name: "Alexander Surkov", company: "Mozilla Foundation", companyURL: "https://www.mozilla.org/", w3cid: 51089, note: "until August 2018" },
{ name: "Bogdan Brinza", company: "Microsoft", companyURL: "https://www.microsoft.com/", w3cid: 71139, note: "until July 2018" },
{ name: "Jason Kiss", company: "Invited Expert", w3cid: 50050, note: "until June 2018" },
{ name: "Cynthia Shelly", company: "Microsoft", companyURL: "https://www.microsoft.com/", w3cid: 11897, note: "until September 2013" },
],
// authors, add as many as you like.
// This is optional, uncomment if you have authors as well as editors.
// only "name" is required. Same format as editors.
//authors: [
// { name: "Your Name", url: "http://example.org/",
// company: "Your Company", companyURI: "http://example.com/" },
//],
// Spec URLs
ariaSpecURLs: {
CR: "https://w3c.github.io/aria/",
CRD: "https://w3c.github.io/aria/",
PR: "https://www.w3.org/TR/wai-aria/",
REC: "https://www.w3.org/TR/wai-aria/",
},
accNameURLs: {
ED: "https://w3c.github.io/accname/",
WD: "https://www.w3.org/TR/accname-1.2/",
FPWD: "https://www.w3.org/TR/accname-1.2/",
CR: "https://www.w3.org/TR/accname-1.2/",
REC: "https://www.w3.org/TR/accname-1.2/",
},
coreMappingURLs: {
ED: "https://w3c.github.io/core-aam/",
WD: "https://www.w3.org/TR/core-aam-1.2/",
FPWD: "https://www.w3.org/TR/core-aam-1.2/",
CR: "https://www.w3.org/TR/core-aam-1.2/",
REC: "https://www.w3.org/TR/core-aam-1.2/",
},
xref: ["HTML", "core-aam", "accname", "wai-aria", "dom", "infra"],
preProcess: [linkCrossReferences, getParticipants],
postProcess: [fixContributors],
a11y: false,
};
</script>
</head>
<body>
<section id="abstract">
<p>
HTML Accessibility API Mappings (HTML-AAM) defines how <a class="termref">user agents</a> map <abbr title="HyperText Markup Language">HTML</abbr> [[HTML]] elements and attributes to platform
<a class="termref" data-lt="accessibility API">accessibility application programming interfaces (<abbr title="Application Programming Interfaces">APIs</abbr>)</a>. It leverages and extends the
[[[core-aam-1.2]]] and the [[[accname-1.2]]] for use with the HTML host language. Documenting these mappings promotes interoperable exposure of roles, states, properties, and events
implemented by accessibility APIs and helps to ensure that this information appears in a manner consistent with author intent.
</p>
<p>
The HTML-AAM is part of the <abbr title="Accessible Rich Internet Applications">WAI-ARIA</abbr> suite described in the
<a href="https://www.w3.org/WAI/intro/aria.php"><abbr title="Accessible Rich Internet Application">WAI-ARIA</abbr> Overview</a>.
</p>
</section>
<section id="sotd">
<p class="note">
<strong>This document is subject to change without notice.</strong>
</p>
<p>
This document was initially developed by and with the approval of the <a href="https://www.w3.org/WAI/PF/html-accessibility-tf.html">HTML Accessibility Taskforce</a>, a joint task force of the
<a href="https://www.w3.org/WAI/PF/">Protocols and Formats Working Group</a> and the <a href="https://www.w3.org/html/wg/">HTML Working Group</a>. Work continued with the successor groups
<a href="https://www.w3.org/WAI/ARIA/">Accessible Rich Internet Applications Working Group</a> and the <a href="https://www.w3.org/2019/webapps/">Web Applications Working Group</a>. This
document is now maintained solely by the <a href="https://www.w3.org/WAI/ARIA/">Accessible Rich Internet Applications Working Group</a>.
</p>
</section>
<section id="intro" class="informative">
<h2>Introduction</h2>
<p>
This specification defines how HTML user agents respond to and expose [=role=], [=state=] and [=ARIA/property=] information provided for Web content. Unless indicated otherwise, an HTML
element or attribute with default [[[wai-aria-1.2]]] semantics must be exposed to the platform <a class="termref">accessibility APIs</a> according to the relevant WAI-ARIA mappings defined in
the [[[core-aam-1.2]]] specification.
</p>
<p>
In some cases, often due to features of the HTML host language or the accessibility API in question, an element or attribute's mapping differs from the corresponding ARIA mappings specified in
the [[core-aam-1.2]]. Where an HTML element or attribute does not have any default WAI-ARIA semantics, the applicable mapping for each platform <a class="termref">accessibility API</a> is
defined by this specification.
</p>
<p>
This document also adapts the [[[accname-1.2]]] specification for deriving the <a data-cite="accname-1.2/#dfn-accessible-name">accessible names</a> and
<a data-cite="accname-1.2/#dfn-accessible-description">accessible descriptions</a> of [[HTML]] elements, and provides accessible implementation examples for specific HTML elements and
features.
</p>
<p>
Users often access HTML content using assistive technologies that rely on platform <a class="termref">accessibility <abbr title="Application Programming Interface">API</abbr></a> to obtain and
interact with information from the page. This document is part of the following suite of accessibility API mapping specifications for content rendered by user agents:
</p>
<ul>
<li>[[[accname-1.2]]]</li>
<li>[[[core-aam-1.2]]]</li>
<li>HTML Accessibility API Mappings 1.0 (this specification)</li>
<!-- mathml aam link needs a shortcode, this doesn't appear to exit right now -->
<li>
<cite><a href="https://w3c.github.io/mathml-aam/">MathML Accessibility API Mappings 1.0</a></cite>
</li>
<li>[[[svg-aam-1.0]]]</li>
</ul>
<section id="intro_aapi">
<h3>Accessibility APIs</h3>
<p><a class="termref">Accessibility APIs</a> covered by this document are:</p>
<ul>
<li><abbr title="Microsoft Active Accessibility">MSAA</abbr> with <cite>IAccessible2 1.3</cite> [[IAccessible2]]</li>
<li><cite>User Interface Automation</cite> [[UI-AUTOMATION]]</li>
<li><cite>ATK - Accessibility Toolkit</cite> [[ATK]] and <cite>Assistive Technology Service Provider Interface</cite> [[AT-SPI]], referred to hereafter as "ATK/AT-SPI"</li>
<li><cite>macOS Accessibility Protocol</cite> [[AXAPI]]</li>
</ul>
<p>
If user agent developers need to expose information using other <a class="termref">accessibility APIs</a>, it is recommended that they work closely with the developer of the platform where
the <abbr title="application programming interface">API</abbr> runs, and assistive technology developers on that platform.
</p>
<p>For more information regarding <a class="termref">accessibility APIs</a>, refer to <a data-cite="core-aam-1.2/#intro_aapi">section 1.1 Accessibility APIs</a> of the [[[core-aam-1.2]]].</p>
</section>
</section>
<section id="conformance">
<p>The classification of a section as normative or non-normative applies to the entire section and all sub-sections of that section.</p>
<p>Normative sections provide requirements that authors, user agents, and assistive technologies MUST follow for an implementation to conform to this specification.</p>
<p>
Non-normative sections provide information useful to understanding the specification. Such sections may contain examples of recommended practice, but it is not required to follow such
recommendations in order to conform to this specification.
</p>
<section id="deprecated">
<h3>Deprecated</h3>
<p>There are currently no deprecated requirements.</p>
</section>
</section>
<section>
<h2>Mapping HTML to Accessibility APIs</h2>
<section id="mapping_general">
<h3>General Rules for Exposing WAI-ARIA Semantics</h3>
<p class="note">WAI-ARIA support was first introduced to HTML in [[HTML5]].</p>
<p>
Where an HTML element or attribute has default WAI-ARIA semantics, it MUST be exposed to the platform <a class="termref">accessibility APIs</a> in a way that conforms to
<a class="core-mapping" href="#mapping_general">General rules for exposing WAI-ARIA semantics</a> in the [[[core-aam-1.2]]].
</p>
</section>
<section id="mapping_conflicts">
<h3>Conflicts Between Native Markup Semantics and WAI-ARIA</h3>
<p>
Where the host language is [[HTML]], user agents MUST conform to
<a class="core-mapping" href="#mapping_conflicts">Conflicts between native markup semantics and WAI-ARIA</a> in the [[[core-aam-1.2]]].
</p>
</section>
<section id="mapping_nodirect">
<h3>Exposing HTML Features That Do Not Directly Map to Accessibility APIs</h3>
<p>
HTML can include features that are not supported by <a class="termref">accessibility APIs</a> at the time of publication. There is not a one to one relationship between all features and
platform <a class="termref">accessibility APIs</a>. When HTML roles, states and properties do not directly map to an <a class="termref">accessibility API</a>, and there is a method in the
API to expose a text string, user agents MUST expose the undefined role, states and properties via that method.
</p>
<p>
For HTML elements or attributes with default WAI-ARIA semantics, user agents MUST conform to
<a class="core-mapping" href="#mapping_nodirect">Exposing attributes that do not directly map to accessibility <abbr title="application programming interface">API</abbr> properties</a> in
the [[core-aam-1.2]].
</p>
</section>
<section>
<h3 id="minimum-role">Exposing HTML Features That Require a Minimum Role</h3>
<p>
A <dfn>minimum role</dfn> is the equivalent WAI-ARIA role an element will map to if the element does not have a more specific implicit role or platform role mappings, e.g., a non-generic
role. This can help ensure that users of assistive technologies get the best possible experience for commonly-used and valid HTML markup where otherwise a role would not be exposed.
</p>
<p>A minimum role is provided when all of the following conditions are true:</p>
<ul>
<li>the author has <strong>not</strong> specified a valid explicit WAI-ARIA role to the element, <strong>or</strong> the specified role is either `none`, `presentation`, or `generic`;</li>
<li>the element either has no implicit WAI-ARIA role or platform role mappings, or it has an implicit `generic` or `none` computed role;</li>
<li>and the author has specified attributes which require a minimum role mapping for the element.</li>
</ul>
<p>
The <a href="#html-attribute-state-and-property-mappings">HTML Attribute State and Property Mappings</a> section identifies the specific global attributes which would require an element map
to a minimum role.
</p>
<p>
When these conditions are met, the browser MUST expose an object using the mappings defined in CORE-AAM for the specified minimum role. If the element has multiple attributes specified which
require a minimum role be returned as the computed role for the element, prioritize the more specific role in the ARIA taxonomy.
</p>
</section>
<section>
<h3>HTML Element Role Mappings</h3>
<ul>
<li>
HTML elements with implicit WAI-ARIA role semantics MUST be mapped to platform <a class="termref">accessibility APIs</a> according to the identified WAI-ARIA role mapping as defined in the
[[core-aam-1.2]] specification.
</li>
<li>
"Not mapped" means the element does not need to be exposed via an <a class="termref">accessibility API</a>. This is usually because the element is not displayed as part of the user
interface. However, authors can force some of these elements to be rendered. For instance, by overriding user agent styles to render elements that would have been otherwise set to
`display: none`. In these cases, the user agent SHOULD map such elements to the role of <a class="core-mapping" href="#role-map-generic">`generic`</a>, unless other HTML features have been
specified which would require a more specific <a>minimum role</a> to be exposed.
</li>
<li>
Where an element is indicated as having "No corresponding (WAI-ARIA) role", or is mapped to the <a class="core-mapping" href="#role-map-generic">`generic`</a> role, user agents
MUST NOT expose the <a class="core-mapping" href="#ariaRoleDescription">`aria-roledescription`</a> property value in the <a class="termref">accessibility tree</a> unless the element has an
explicit, conforming `role` attribute value which [[WAI-ARIA-1.2]] does not prohibit the use of `aria-roledescription`.
</li>
<li>
Some HTML elements expose implicit WAI-ARIA roles depending on whether they have been provided an <a data-cite="accname-1.2/#dfn-accessible-name">accessible name</a>. How an element
participates in the computation of its own or another element's <a data-cite="accname-1.2/#dfn-accessible-name">accessible name</a> and/or
<a data-cite="accname-1.2/#dfn-accessible-description">accessible description</a> is described in the
<a href="#accessible-name-and-description-computation">Accessible Name and Description Computation</a> section of this document.
</li>
</ul>
<h4 id="platform-api-mapping-requirements">Platform API mapping requirements</h4>
<ul>
<li>
When HTML elements do not have an exact or equivalent mapping to a valid, non-abstract <abbr title="Accessible Rich Internet Applications">WAI-ARIA</abbr> role, a unique `computedrole`
string has been specified to serve as the return value for interoperability testing purposes. For instance, the `video` element MAY be exposed with a `computedrole` of "`html-video`".
Authors MUST NOT use any `html-`prefixed computed role string in the role attribute (such as `html-video`). User Agents MUST ignore any abstract or invalid role token.
<div class="example">
<code> <video> <!-- computedrole returns 'html-video' --> <main role="html-video"> <!-- Author error. computed role returns 'main' --> </code>
</div>
</li>
<li>
<strong>IAccessible2:</strong>
<ul>
<li>All elements with accessible objects should implement the IAccessible, IAccessible2 and IAccessible2_2 interfaces.</li>
</ul>
</li>
<li>
<strong>UIA:</strong>
<ul>
<li>
When a <a data-cite="html/forms.html#category-label">labelable element</a> is referenced by a `label` element's `for` attribute, or a descendant of a `label` element, the labelable
element's UIA `LabeledBy` property points to the UIA element for the `label` element.
</li>
<li>
Elements mapped to the `Text` Control Type are not generally represented as <a class="termref" data-lt="accessible object">accessible objects</a> in the
<a class="termref">accessibility tree</a>, but are just part of the `Text` Control Pattern implemented for the whole HTML document. However, if they have any `aria-` attributes or an
explicit `tabindex` specified, elements mapped to the `Text` Control Type will be represented as <a class="termref" data-lt="accessible object">accessible objects</a> in the
<a class="termref">accessibility tree</a>.
</li>
</ul>
</li>
<li>
<strong>AXAPI:</strong>
<ul>
<li>User agents should return a user-presentable, localized string value for the Mac Accessibility AXRoleDescription.</li>
</ul>
</li>
</ul>
<h4 id="el-a">`a` <span class="el-context">(represents a hyperlink)</span></h4>
<table aria-labelledby="el-a">
<tbody>
<tr>
<th>HTML Specification</th>
<td>
<a data-cite="HTML">`a`</a>
<span class="el-context">(represents a <a data-cite="html">hyperlink</a>)</span>
</td>
</tr>
<tr>
<th>[[wai-aria-1.2]]</th>
<td><a class="core-mapping" href="#role-map-link">`link`</a> role</td>
</tr>
<tr>
<th><a data-cite="core-aam-1.2/#roleMappingComputedRole">Computed Role</a></th>
<td class="role-computed"><div class="general">Use WAI-ARIA mapping</div></td>
</tr>
<tr>
<th>
<a href="https://msdn.microsoft.com/en-us/library/dd373608%28v=VS.85%29.aspx">MSAA</a> + <a href="http://accessibility.linuxfoundation.org/a11yspecs/ia2/docs/html/">IAccessible2</a>
</th>
<td>
<div class="general">Use WAI-ARIA mapping</div>
</td>
</tr>
<tr>
<th><a href="https://msdn.microsoft.com/en-us/library/ms726297%28v=VS.85%29.aspx">UIA</a></th>
<td>
<div class="general">Use WAI-ARIA mapping</div>
</td>
</tr>
<tr>
<th><a href="https://gnome.pages.gitlab.gnome.org/atk/">ATK</a></th>
<td>
<div class="general">Use WAI-ARIA mapping</div>
</td>
</tr>
<tr>
<th><a href="https://developer.apple.com/reference/appkit/nsaccessibility">AX</a></th>
<td>
<div class="general">Use WAI-ARIA mapping</div>
</td>
</tr>
<tr>
<th>Comments</th>
<td></td>
</tr>
</tbody>
</table>
<h4 id="el-a-no-href">`a` <span class="el-context">(no `href` attribute)</span></h4>
<table aria-labelledby="el-a-no-href">
<tbody>
<tr>
<th>HTML Specification</th>
<td>
<a data-cite="HTML">`a`</a>
<span class="el-context">(no <a data-cite="html/links.html#attr-hyperlink-href">`href`</a> attribute)</span>
</td>
</tr>
<tr>
<th>[[wai-aria-1.2]]</th>
<td><a class="core-mapping" href="#role-map-generic">`generic`</a> role</td>
</tr>
<tr>
<th><a data-cite="core-aam-1.2/#roleMappingComputedRole">Computed Role</a></th>
<td class="role-computed"><div class="general">Use WAI-ARIA mapping</div></td>
</tr>
<tr>
<th>
<a href="https://msdn.microsoft.com/en-us/library/dd373608%28v=VS.85%29.aspx">MSAA</a> + <a href="http://accessibility.linuxfoundation.org/a11yspecs/ia2/docs/html/">IAccessible2</a>
</th>
<td>
<div class="general">Use WAI-ARIA mapping</div>
</td>
</tr>
<tr>
<th><a href="https://msdn.microsoft.com/en-us/library/ms726297%28v=VS.85%29.aspx">UIA</a></th>
<td>
<div class="general">Use WAI-ARIA mapping</div>
</td>
</tr>
<tr>
<th><a href="https://gnome.pages.gitlab.gnome.org/atk/">ATK</a></th>
<td>
<div class="general">Use WAI-ARIA mapping</div>
</td>
</tr>
<tr>
<th><a href="https://developer.apple.com/reference/appkit/nsaccessibility">AX</a></th>
<td>
<div class="general">Use WAI-ARIA mapping</div>
</td>
</tr>
<tr>
<th>Comments</th>
<td></td>
</tr>
</tbody>
</table>
<h4 id="el-abbr">`abbr`</h4>
<table aria-labelledby="el-abbr">
<tbody>
<tr>
<th>HTML Specification</th>
<td>
<a data-cite="HTML">`abbr`</a>
</td>
</tr>
<tr>
<th>[[wai-aria-1.2]]</th>
<td>No corresponding role</td>
</tr>
<tr>
<th><a data-cite="core-aam-1.2/#roleMappingComputedRole">Computed Role</a></th>
<td class="role-computed"><div class="general">html-abbr</div></td>
</tr>
<tr>
<th>
<a href="https://msdn.microsoft.com/en-us/library/dd373608%28v=VS.85%29.aspx">MSAA</a> + <a href="http://accessibility.linuxfoundation.org/a11yspecs/ia2/docs/html/">IAccessible2</a>
</th>
<td>
<div class="role"><span class="type">Roles:</span> `ROLE_SYSTEM_TEXT`; `IA2_ROLE_TEXT_FRAME`</div>
<div class="objattrs">
<span class="type">Object attributes:</span>
"abbr" attribute on the containing <a href="#el-td">`td`</a> if a single child, text content used as a value
</div>
</td>
</tr>
<tr>
<th><a href="https://msdn.microsoft.com/en-us/library/ms726297%28v=VS.85%29.aspx">UIA</a></th>
<td>
<div class="ctrltype"><span class="type">Control Type:</span> `Text`</div>
</td>
</tr>
<tr>
<th><a href="https://gnome.pages.gitlab.gnome.org/atk/">ATK</a></th>
<td>
<div class="role"><span class="type">Role:</span> `ATK_ROLE_STATIC`</div>
<div class="objattrs">
<span class="type">Object attributes:</span>
"abbr" attribute on the containing <a href="#el-td">`td`</a> if a single child, text content used as a value
</div>
</td>
</tr>
<tr>
<th><a href="https://developer.apple.com/reference/appkit/nsaccessibility">AX</a></th>
<td>
<div class="role"><span class="type">AXRole:</span> `AXGroup`</div>
<div class="subrole"><span class="type">AXSubrole:</span> `(nil)`</div>
<div class="roledesc"><span class="type">AXRoleDescription:</span> `"group"`</div>
</td>
</tr>
<tr>
<th>Comments</th>
<td></td>
</tr>
</tbody>
</table>
<h4 id="el-address">`address`</h4>
<table aria-labelledby="el-address">
<tbody>
<tr>
<th>HTML Specification</th>
<td>
<a data-cite="HTML">`address`</a>
</td>
</tr>
<tr>
<th>[[wai-aria-1.2]]</th>
<td><a class="core-mapping" href="#role-map-group">`group`</a> role</td>
</tr>
<tr>
<th><a data-cite="core-aam-1.2/#roleMappingComputedRole">Computed Role</a></th>
<td class="role-computed"><div class="general">Use WAI-ARIA mapping</div></td>
</tr>
<tr>
<th>
<a href="https://msdn.microsoft.com/en-us/library/dd373608%28v=VS.85%29.aspx">MSAA</a> + <a href="http://accessibility.linuxfoundation.org/a11yspecs/ia2/docs/html/">IAccessible2</a>
</th>
<td>
<div class="general">Use WAI-ARIA mapping</div>
</td>
</tr>
<tr>
<th><a href="https://msdn.microsoft.com/en-us/library/ms726297%28v=VS.85%29.aspx">UIA</a></th>
<td>
<div class="general">Use WAI-ARIA mapping</div>
</td>
</tr>
<tr>
<th><a href="https://gnome.pages.gitlab.gnome.org/atk/">ATK</a></th>
<td>
<div class="general">Use WAI-ARIA mapping</div>
</td>
</tr>
<tr>
<th><a href="https://developer.apple.com/reference/appkit/nsaccessibility">AX</a></th>
<td>
<div class="general">Use WAI-ARIA mapping</div>
</td>
</tr>
<tr>
<th>Comments</th>
<td></td>
</tr>
</tbody>
</table>
<h4 id="el-area">`area` <span class="el-context">(represents a hyperlink)</span></h4>
<table aria-labelledby="el-area">
<tbody>
<tr>
<th>HTML Specification</th>
<td>
<a data-cite="HTML">`area`</a>
<span class="el-context">(represents a <a data-cite="HTML">hyperlink</a>)</span>
</td>
</tr>
<tr>
<th>[[wai-aria-1.2]]</th>
<td><a class="core-mapping" href="#role-map-link">`link`</a> role</td>
</tr>
<tr>
<th><a data-cite="core-aam-1.2/#roleMappingComputedRole">Computed Role</a></th>
<td class="role-computed"><div class="general">Use WAI-ARIA mapping</div></td>
</tr>
<tr>
<th>
<a href="https://msdn.microsoft.com/en-us/library/dd373608%28v=VS.85%29.aspx">MSAA</a> + <a href="http://accessibility.linuxfoundation.org/a11yspecs/ia2/docs/html/">IAccessible2</a>
</th>
<td>
<div class="general">Use WAI-ARIA mapping</div>
</td>
</tr>
<tr>
<th><a href="https://msdn.microsoft.com/en-us/library/ms726297%28v=VS.85%29.aspx">UIA</a></th>
<td>
<div class="general">Use WAI-ARIA mapping</div>
</td>
</tr>
<tr>
<th><a href="https://gnome.pages.gitlab.gnome.org/atk/">ATK</a></th>
<td>
<div class="general">Use WAI-ARIA mapping</div>
</td>
</tr>
<tr>
<th><a href="https://developer.apple.com/reference/appkit/nsaccessibility">AX</a></th>
<td>
<div class="general">Use WAI-ARIA mapping</div>
</td>
</tr>
<tr>
<th>Comments</th>
<td></td>
</tr>
</tbody>
</table>
<h4 id="el-area-no-href">`area` <span class="el-context">(no `href` attribute)</span></h4>
<table aria-labelledby="el-area-no-href">
<tbody>
<tr>
<th>HTML Specification</th>
<td>
<a data-cite="HTML">`area`</a>
<span class="el-context">(no <a data-cite="html/links.html#attr-hyperlink-href">`href`</a> attribute)</span>
</td>
</tr>
<tr>
<th>[[wai-aria-1.2]]</th>
<td><a class="core-mapping" href="#role-map-generic">`generic`</a> role</td>
</tr>
<tr>
<th><a data-cite="core-aam-1.2/#roleMappingComputedRole">Computed Role</a></th>
<td class="role-computed"><div class="general">Use WAI-ARIA mapping</div></td>
</tr>
<tr>
<th>
<a href="https://msdn.microsoft.com/en-us/library/dd373608%28v=VS.85%29.aspx">MSAA</a> + <a href="http://accessibility.linuxfoundation.org/a11yspecs/ia2/docs/html/">IAccessible2</a>
</th>
<td>
<div class="general">Use WAI-ARIA mapping</div>
</td>
</tr>
<tr>
<th><a href="https://msdn.microsoft.com/en-us/library/ms726297%28v=VS.85%29.aspx">UIA</a></th>
<td>
<div class="general">Use WAI-ARIA mapping</div>
</td>
</tr>
<tr>
<th><a href="https://gnome.pages.gitlab.gnome.org/atk/">ATK</a></th>
<td>
<div class="general">Use WAI-ARIA mapping</div>
</td>
</tr>
<tr>
<th><a href="https://developer.apple.com/reference/appkit/nsaccessibility">AX</a></th>
<td>
<div class="general">Use WAI-ARIA mapping</div>
</td>
</tr>
<tr>
<th>Comments</th>
<td>
User agents MAY still expose an `a` element lacking the `href` attribute with a `link` role in the event an author specifies interactive behavior for the element. For example, if using
an <a data-cite="html/webappapis.html#event-handler-content-attributes">event handler attribute</a>.
</td>
</tr>
</tbody>
</table>
<h4 id="el-article">`article`</h4>
<table aria-labelledby="el-article">
<tbody>
<tr>
<th>HTML Specification</th>
<td>
<a data-cite="HTML">`article`</a>
</td>
</tr>
<tr>
<th>[[wai-aria-1.2]]</th>
<td><a class="core-mapping" href="#role-map-article">`article`</a> role</td>
</tr>
<tr>
<th><a data-cite="core-aam-1.2/#roleMappingComputedRole">Computed Role</a></th>
<td class="role-computed"><div class="general">Use WAI-ARIA mapping</div></td>
</tr>
<tr>
<th>
<a href="https://msdn.microsoft.com/en-us/library/dd373608%28v=VS.85%29.aspx">MSAA</a> + <a href="http://accessibility.linuxfoundation.org/a11yspecs/ia2/docs/html/">IAccessible2</a>
</th>
<td>
<div class="general">Use WAI-ARIA mapping</div>
</td>
</tr>
<tr>
<th><a href="https://msdn.microsoft.com/en-us/library/ms726297%28v=VS.85%29.aspx">UIA</a></th>
<td>
<div class="general">Use WAI-ARIA mapping</div>
</td>
</tr>
<tr>
<th><a href="https://gnome.pages.gitlab.gnome.org/atk/">ATK</a></th>
<td>
<div class="general">Use WAI-ARIA mapping</div>
</td>
</tr>
<tr>
<th><a href="https://developer.apple.com/reference/appkit/nsaccessibility">AX</a></th>
<td>
<div class="general">Use WAI-ARIA mapping</div>
</td>
</tr>
<tr>
<th>Comments</th>
<td></td>
</tr>
</tbody>
</table>
<h4 id="el-aside-ancestorbodymain">`aside` (scoped to the `body` or `main` element)</h4>
<table aria-labelledby="el-aside-ancestorbodymain">
<tbody>
<tr>
<th>HTML Specification</th>
<td><a data-cite="HTML">`aside`</a> (scoped to the `body` or `main` element)</td>
</tr>
<tr>
<th>[[wai-aria-1.2]]</th>
<td><a class="core-mapping" href="#role-map-complementary">`complementary`</a> role</td>
</tr>
<tr>
<th><a data-cite="core-aam-1.2/#roleMappingComputedRole">Computed Role</a></th>
<td class="role-computed"><div class="general">Use WAI-ARIA mapping</div></td>
</tr>
<tr>
<th>
<a href="https://msdn.microsoft.com/en-us/library/dd373608%28v=VS.85%29.aspx">MSAA</a> + <a href="http://accessibility.linuxfoundation.org/a11yspecs/ia2/docs/html/">IAccessible2</a>
</th>
<td>
<div class="general">Use WAI-ARIA mapping</div>
</td>
</tr>
<tr>
<th><a href="https://msdn.microsoft.com/en-us/library/ms726297%28v=VS.85%29.aspx">UIA</a></th>
<td>
<div class="general">Use WAI-ARIA mapping</div>
</td>
</tr>
<tr>
<th><a href="https://gnome.pages.gitlab.gnome.org/atk/">ATK</a></th>
<td>
<div class="general">Use WAI-ARIA mapping</div>
</td>
</tr>
<tr>
<th><a href="https://developer.apple.com/reference/appkit/nsaccessibility">AX</a></th>
<td>
<div class="general">Use WAI-ARIA mapping</div>
</td>
</tr>
<tr>
<th>Comments</th>
<td></td>
</tr>
</tbody>
</table>
<h4 id="el-aside">`aside` (scoped to a sectioning content element)</h4>
<table aria-labelledby="el-aside">
<tbody>
<tr>
<th>HTML Specification</th>
<td>
<a data-cite="HTML">`aside`</a>
(scoped to a <a data-cite="HTML/dom.html#sectioning-content">sectioning content</a> element)
</td>
</tr>
<tr>
<th>[[wai-aria-1.2]]</th>
<td>
<a class="core-mapping" href="#role-map-complementary">`complementary`</a> role if the <a>`aside`</a> element has an
<a data-cite="accname-1.2/#dfn-accessible-name">accessible name</a>. Otherwise, <a class="core-mapping" href="#role-map-generic">`generic`</a> role.
</td>
</tr>
<tr>
<th><a data-cite="core-aam-1.2/#roleMappingComputedRole">Computed Role</a></th>
<td class="role-computed"><div class="general">Use WAI-ARIA mapping</div></td>
</tr>
<tr>
<th>
<a href="https://msdn.microsoft.com/en-us/library/dd373608%28v=VS.85%29.aspx">MSAA</a> + <a href="http://accessibility.linuxfoundation.org/a11yspecs/ia2/docs/html/">IAccessible2</a>
</th>
<td>
<div class="general">Use WAI-ARIA mapping</div>
</td>
</tr>
<tr>
<th><a href="https://msdn.microsoft.com/en-us/library/ms726297%28v=VS.85%29.aspx">UIA</a></th>
<td>
<div class="general">Use WAI-ARIA mapping</div>
</td>
</tr>
<tr>
<th><a href="https://gnome.pages.gitlab.gnome.org/atk/">ATK</a></th>
<td>
<div class="general">Use WAI-ARIA mapping</div>
</td>
</tr>
<tr>
<th><a href="https://developer.apple.com/reference/appkit/nsaccessibility">AX</a></th>
<td>
<div class="general">Use WAI-ARIA mapping</div>
</td>
</tr>
<!-- <th><a href="#accessible-name-and-description-computation">Naming Algorithm</a></th> -->
<tr>
<th>Comments</th>
<td></td>
</tr>
</tbody>
</table>
<h4 id="el-audio">`audio`</h4>
<table aria-labelledby="el-audio">
<tbody>
<tr>
<th>HTML Specification</th>
<td>
<a data-cite="HTML">`audio`</a>
</td>
</tr>
<tr>
<th>[[wai-aria-1.2]]</th>
<td>No corresponding role</td>
</tr>
<tr>
<th><a data-cite="core-aam-1.2/#roleMappingComputedRole">Computed Role</a></th>
<td class="role-computed"><div class="general">html-audio</div></td>
</tr>
<tr>
<th>
<a href="https://msdn.microsoft.com/en-us/library/dd373608%28v=VS.85%29.aspx">MSAA</a> + <a href="http://accessibility.linuxfoundation.org/a11yspecs/ia2/docs/html/">IAccessible2</a>
</th>
<td>
<div class="role"><span class="type">Role:</span> `ROLE_SYSTEM_GROUPING`</div>
</td>
</tr>
<tr>
<th><a href="https://msdn.microsoft.com/en-us/library/ms726297%28v=VS.85%29.aspx">UIA</a></th>
<td>
<div class="ctrltype"><span class="type">Control Type:</span> `Group`</div>
<div class="ctrltype"><span class="type">Localized Control Type:</span> `"audio"`</div>
<div class="general">
<b>Note:</b> If the <a data-cite="html/media.html#attr-media-controls">`controls`</a> attribute is present, UI controls (e.g., play, volume) are exposed as children of the
<a data-cite="HTML">`audio`</a> element in the <a class="termref">accessibility tree</a>, and mapped as appropriate for the type of control (e.g.,
<a class="core-mapping" href="#role-map-button">`button`</a> or <a class="core-mapping" href="#role-map-slider">`slider`</a>).
</div>
<div class="general">
Text objects associated with loading or error messages, and any UI control not currently displayed, MAY be present in the <a class="termref">accessibility tree</a> and marked as
hidden or off-screen.
</div>
</td>
</tr>
<tr>
<th><a href="https://gnome.pages.gitlab.gnome.org/atk/">ATK</a></th>
<td>
<div class="role"><span class="type">Role: </span> `ATK_ROLE_AUDIO`</div>
</td>
</tr>
<tr>
<th><a href="https://developer.apple.com/reference/appkit/nsaccessibility">AX</a></th>
<td>
<div class="role"><span class="type">AXRole:</span> `AXGroup`</div>
<div class="subrole"><span class="type">AXSubrole:</span> `AXAudio`</div>
<div class="roledesc"><span class="type">AXRoleDescription:</span> `"audio playback"`</div>
<div class="general">
<b>Note:</b> If the <a data-cite="html/media.html#attr-media-controls">`controls`</a> attribute is present, UI controls (e.g., play, volume) are exposed as descendants of an
<a class="termref">accessible object</a> with a role of <a class="core-mapping" href="#role-map-toolbar">`toolbar`</a>, and mapped as appropriate for the type of control (e.g.,
<a class="core-mapping" href="#role-map-button">`button`</a> or <a class="core-mapping" href="#role-map-slider">`slider`</a>).
</div>
</td>
</tr>
<!-- <th><a href="#accessible-name-and-description-computation">Naming Algorithm</a></th> -->
<tr>
<th>Comments</th>
<td></td>
</tr>
</tbody>
</table>
<h4 id="el-autonomous-custom-element">autonomous custom element</h4>
<table aria-labelledby="el-autonomous-custom-element">
<tbody>
<tr>
<th>HTML Specification</th>
<td>
<a data-cite="HTML">autonomous custom element</a>
</td>
</tr>
<tr>
<th>[[wai-aria-1.2]]</th>
<td>If the author assigned a conforming ARIA role using the `role` attribute, map to that role. Otherwise, the <a class="core-mapping" href="#role-map-generic">`generic`</a> role.</td>
</tr>
<tr>
<th><a data-cite="core-aam-1.2/#roleMappingComputedRole">Computed Role</a></th>
<td class="role-computed"><div class="general">Use WAI-ARIA mapping</div></td>
</tr>
<tr>
<th>
<a href="https://msdn.microsoft.com/en-us/library/dd373608%28v=VS.85%29.aspx">MSAA</a> + <a href="http://accessibility.linuxfoundation.org/a11yspecs/ia2/docs/html/">IAccessible2</a>
</th>
<td>
<div class="general">Use WAI-ARIA mapping</div>
</td>
</tr>
<tr>
<th><a href="https://msdn.microsoft.com/en-us/library/ms726297%28v=VS.85%29.aspx">UIA</a></th>
<td>
<div class="general">Use WAI-ARIA mapping</div>
</td>
</tr>
<tr>
<th><a href="https://gnome.pages.gitlab.gnome.org/atk/">ATK</a></th>
<td>
<div class="general">Use WAI-ARIA mapping</div>
</td>
</tr>
<tr>
<th><a href="https://developer.apple.com/reference/appkit/nsaccessibility">AX</a></th>
<td>
<div class="general">Use WAI-ARIA mapping</div>
</td>
</tr>
<!-- <th><a href="#accessible-name-and-description-computation">Naming Algorithm</a></th> -->
<tr>
<th>Comments</th>
<td></td>
</tr>
</tbody>
</table>
<h4 id="el-b">`b`</h4>
<table aria-labelledby="el-b">
<tbody>
<tr>
<th>HTML Specification</th>
<td>
<a data-cite="HTML">`b`</a>
</td>
</tr>
<tr>
<th>[[wai-aria-1.2]]</th>
<td><a class="core-mapping" href="#role-map-generic">`generic`</a> role</td>
</tr>
<tr>
<th><a data-cite="core-aam-1.2/#roleMappingComputedRole">Computed Role</a></th>
<td class="role-computed"><div class="general">Use WAI-ARIA mapping</div></td>
</tr>
<tr>
<th>
<a href="https://msdn.microsoft.com/en-us/library/dd373608%28v=VS.85%29.aspx">MSAA</a> + <a href="http://accessibility.linuxfoundation.org/a11yspecs/ia2/docs/html/">IAccessible2</a>
</th>
<td>
<div class="general">Use WAI-ARIA mapping</div>
</td>
</tr>
<tr>
<th><a href="https://msdn.microsoft.com/en-us/library/ms726297%28v=VS.85%29.aspx">UIA</a></th>
<td>
<div class="general">Use WAI-ARIA mapping</div>
</td>
</tr>
<tr>
<th><a href="https://gnome.pages.gitlab.gnome.org/atk/">ATK</a></th>
<td>
<div class="general">Use WAI-ARIA mapping</div>
</td>
</tr>
<tr>
<th><a href="https://developer.apple.com/reference/appkit/nsaccessibility">AX</a></th>
<td>
<div class="general">Use WAI-ARIA mapping</div>
</td>
</tr>
<!-- <th><a href="#accessible-name-and-description-computation">Naming Algorithm</a></th> -->
<tr>
<th>Comments</th>
<td>Exposed by platform specific bold font weight text styles.</td>
</tr>
</tbody>
</table>
<h4 id="el-base">`base`</h4>
<table aria-labelledby="el-base">
<tbody>
<tr>
<th>HTML Specification</th>
<td>
<a data-cite="HTML">`base`</a>
</td>
</tr>
<tr>
<th>[[wai-aria-1.2]]</th>
<td>No corresponding role</td>
</tr>
<tr>
<th><a data-cite="core-aam-1.2/#roleMappingComputedRole">Computed Role</a></th>
<td class="role-computed"><div class="general">Not mapped</div></td>
</tr>
<tr>
<th>
<a href="https://msdn.microsoft.com/en-us/library/dd373608%28v=VS.85%29.aspx">MSAA</a> + <a href="http://accessibility.linuxfoundation.org/a11yspecs/ia2/docs/html/">IAccessible2</a>
</th>
<td>
<div class="general">Not mapped</div>
</td>
</tr>
<tr>
<th><a href="https://msdn.microsoft.com/en-us/library/ms726297%28v=VS.85%29.aspx">UIA</a></th>
<td>
<div class="general">Not mapped</div>
</td>
</tr>
<tr>
<th><a href="https://gnome.pages.gitlab.gnome.org/atk/">ATK</a></th>
<td>
<div class="general">Not mapped</div>
</td>
</tr>
<tr>
<th><a href="https://developer.apple.com/reference/appkit/nsaccessibility">AX</a></th>
<td>
<div class="general">Not mapped</div>
</td>
</tr>
<!-- <th><a href="#accessible-name-and-description-computation">Naming Algorithm</a></th> -->
<tr>
<th>Comments</th>
<td></td>
</tr>
</tbody>
</table>
<h4 id="el-bdi">`bdi`</h4>
<table aria-labelledby="el-bdi">
<tbody>
<tr>
<th>HTML Specification</th>
<td>
<a data-cite="HTML">`bdi`</a>
</td>
</tr>
<tr>
<th>[[wai-aria-1.2]]</th>
<td><a class="core-mapping" href="#role-map-generic">`generic`</a> role</td>
</tr>
<tr>
<th><a data-cite="core-aam-1.2/#roleMappingComputedRole">Computed Role</a></th>
<td class="role-computed"><div class="general">Use WAI-ARIA mapping</div></td>
</tr>
<tr>
<th>
<a href="https://msdn.microsoft.com/en-us/library/dd373608%28v=VS.85%29.aspx">MSAA</a> + <a href="http://accessibility.linuxfoundation.org/a11yspecs/ia2/docs/html/">IAccessible2</a>
</th>
<td>
<div class="general">Use WAI-ARIA mapping</div>
</td>
</tr>
<tr>
<th><a href="https://msdn.microsoft.com/en-us/library/ms726297%28v=VS.85%29.aspx">UIA</a></th>
<td>
<div class="general">Use WAI-ARIA mapping</div>
</td>
</tr>
<tr>
<th><a href="https://gnome.pages.gitlab.gnome.org/atk/">ATK</a></th>
<td>
<div class="general">Use WAI-ARIA mapping</div>
</td>
</tr>
<tr>
<th><a href="https://developer.apple.com/reference/appkit/nsaccessibility">AX</a></th>
<td>
<div class="general">Use WAI-ARIA mapping</div>
</td>
</tr>
<!-- <th><a href="#accessible-name-and-description-computation">Naming Algorithm</a></th> -->