ISSUE-74: How accessibility works for <canvas> is unclear.

canvas-accessibility

How accessibility works for <canvas> is unclear.

State:

CLOSED

Product:

HTML 5 spec

Raised by:

Steve Faulkner

Opened on:

2009-07-09

Description:

change proposals:
http://www.w3.org/html/wg/wiki/ChangeProposals/canvasaccessibilitynonav

Issue is detailed at:
http://esw.w3.org/topic/HTML/AddedElementCanvas

Related Bugs:
7011: Canvas accessible fallback provision is under specified.
http://www.w3.org/Bugs/Public/show_bug.cgi?id=7011
7404: But only if the element is being rendered needs to take into account <canvas> descendants...
http://www.w3.org/Bugs/Public/show_bug.cgi?id=7404

HTML5-SPEC-SECTIONS [the-canvas-element]

Related Actions Items:

• ACTION-132 on Steve Faulkner to Report on canvas accessibility - due 2009-08-28, closed
• ACTION-133 on Richard Schwerdtfeger to Develop an accessibility API and model for canvas as well as attributes to specify alternative content - due 2009-12-17, closed
• ACTION-165 on Richard Schwerdtfeger to Draft a proposal for accessibility of canvas due 25 Feb 2010 - due 2010-04-15, closed

Related emails:

1. {minutes}} HTML WG telecon 2012-09-06 (from Paul.Cotton@microsoft.com on 2012-09-06)
2. {minutes} HTML WG Telecon 2010-12-16: status of actions, calls, new decisions, task force reports (from Paul.Cotton@microsoft.com on 2010-12-16)
3. {agenda} HTML WG Telecon 2010-12-16: status of actions, calls, new decisions, task force reports (from Paul.Cotton@microsoft.com on 2010-12-16)
4. {agenda} HTML WG Telecon 2010-12-16: status of actions, calls, new decisions, task force reports (from Paul.Cotton@microsoft.com on 2010-12-15)
5. Working Group Decision on ISSUE-74 canvas-accessibility and ISSUE-105 canvas-usemap (from mjs@apple.com on 2010-12-14)
6. {minutes} HTML WG F2F minutes, Lyon, France, Nov 4-5 Part 1 (from Paul.Cotton@microsoft.com on 2010-11-09)
7. {minutes} } HTML WG Telecon 2010-10-21: status of actions, calls, issues, heartbeat drafts, and TPAC (from Paul.Cotton@microsoft.com on 2010-10-21)
8. {agenda} HTML WG Telecon 2010-10-21: status of actions, calls, issues, heartbeat drafts, and TPAC (from rubys@intertwingly.net on 2010-10-20)
9. RE: {minutes} HTML WG Telecon 2010-10-14 actions, status of calls, issues and bugs, heartbeat drafts, task force reports (from adrianba@microsoft.com on 2010-10-14)
10. {agenda} HTML WG Telecon 2010-10-14 actions, status of calls, issues and bugs, heartbeat drafts, task force reports (from Paul.Cotton@microsoft.com on 2010-10-13)
11. ISSUE-74: canvas-accessibility and ISSUE-105 canvas-usemap - Straw Poll for Objections (from rubys@intertwingly.net on 2010-10-13)
12. ISSUE-131 (caret-location-API): Should we add a caret location API to canvas, or is the focus API sufficient? [HTML 5 spec] (from sysbot+tracker@w3.org on 2010-10-13)
13. Re: ISSUE-74 canvas-accessibility and ISSUE-105 canvas-use (from janina@rednote.net on 2010-10-07)
14. {agenda} HTML WG Telecon 2010-09-23 status of calls, issues and bugs, heartbeat drafts (from mjs@apple.com on 2010-10-06)
15. {agenda} HTML WG Telecon 2010-09-30 status of calls, issues and bugs, Task Force Reports (from rubys@intertwingly.net on 2010-09-28)
16. RE: {minutes} HTML WG Telecon 2010-09-23 status of calls, issues and bugs, TPAC F2F (from adrianba@microsoft.com on 2010-09-23)
17. {agenda} HTML WG Telecon 2010-09-23 status of calls, issues and bugs, TPAC F2F (from Paul.Cotton@microsoft.com on 2010-09-22)
18. ISSUE-74 canvas-accessibility and ISSUE-105 canvas-usemap (from mjs@apple.com on 2010-09-21)
19. {agenda} HTML WG Telecon 2010-09-09 status of calls, heartbeat, last call; task force reports; bugzilla notifications, discussion guidelines (from rubys@intertwingly.net on 2010-09-15)
20. HTML Working Group Status (from plh@w3.org on 2010-08-27)
21. RE: {minutes} HTML WG telecon 2010-08-19: WG decisions, Decision Policy, TF reports (from adrianba@microsoft.com on 2010-08-19)
22. Re: Counter Proposal, ISSUE-74 (and ISSUE-105) (from joedwil@earthlink.net on 2010-07-30)
23. Counter Proposal, ISSUE-74 (and ISSUE-105) (from chaals@opera.com on 2010-07-30)
24. Re: Change proposal for ISSUE-74 and ISSUE-105 (from schwer@us.ibm.com on 2010-07-29)
25. Re: Change proposal for ISSUE-74 and ISSUE-105 (from ian@hixie.ch on 2010-07-29)
26. {minutes} HTML WG telecon 2010-07-29, WG decisions, issue review, WG surveys (from Paul.Cotton@microsoft.com on 2010-07-29)
27. Re: Change proposal for ISSUE-74 and ISSUE-105 (from schwer@us.ibm.com on 2010-07-29)
28. Change proposal for ISSUE-74 and ISSUE-105 (from ian@hixie.ch on 2010-07-29)
29. {agenda} HTML WG telecon 2010-07-29, WG decisions, issue review, WG surveys (from Paul.Cotton@microsoft.com on 2010-07-27)
30. RE: {minutes} HTML WG telecon 2010-07-22 (from adrianba@microsoft.com on 2010-07-22)
31. RE: {agenda} HTML WG telecon 2010-07-22 (from eliotgra@microsoft.com on 2010-07-22)
32. RE: {agenda} HTML WG telecon 2010-07-22 (from krisk@microsoft.com on 2010-07-22)
33. {agenda} HTML WG telecon 2010-07-22 (from mjs@apple.com on 2010-07-21)
34. Re: HTML-A11Y Task Force Recommendation: ISSUE-74 Canvas-Accessibility (from chaals@opera.com on 2010-07-15)
35. Re: HTML-A11Y Task Force Recommendation: ISSUE-74 Canvas-Accessibility (from schwer@us.ibm.com on 2010-07-15)
36. Re: HTML-A11Y Task Force Recommendation: ISSUE-74 Canvas-Accessibility (from jgraham@opera.com on 2010-07-15)
37. {minutes} HTML WG telecon 2010-07-08: actions, issues, decisions, revised proposals, future surveys, TF reports (from Paul.Cotton@microsoft.com on 2010-07-08)
38. FW: {agenda} HTML WG telecon 2010-07-08: actions, issues, decisions, revised proposals, future surveys, TF reports (from Paul.Cotton@microsoft.com on 2010-07-07)
39. {agenda} HTML WG telecon 2010-07-08: actions, issues, decisions, revised proposals, future surveys, TF reports (from Paul.Cotton@microsoft.com on 2010-07-07)
40. Re: CfC: Adopt ISSUE-105 canvas-usemap Change Proposal to add usemap attribute to the canvas element (from chaals@opera.com on 2010-06-24)
41. Re: CfC: Adopt ISSUE-105 canvas-usemap Change Proposal to add usemap attribute to the canvas element (from chaals@opera.com on 2010-06-23)
42. Re: CfC: Adopt ISSUE-105 canvas-usemap Change Proposal to add usemap attribute to the canvas element (from chaals@opera.com on 2010-06-23)
43. ISSUE-74 canvas-accessibility - Chairs Solicit Alternate Proposals or Counter-Proposals (from rubys@intertwingly.net on 2010-06-23)
44. RE: Adopt ISSUE-105 canvas-usemap Change Proposal to add usemap attribute to the canvas element (from adrianba@microsoft.com on 2010-06-21)
45. Re: HTML-A11Y Task Force Recommendation: ISSUE-74 Canvas-Accessibility (from schwer@us.ibm.com on 2010-06-16)
46. Re: CfC: Adopt ISSUE-105 canvas-usemap Change Proposal to add usemap attribute to the canvas element (from chaals@opera.com on 2010-06-15)
47. Re: HTML-A11Y Task Force Recommendation: ISSUE-74 Canvas-Accessibility (from jgraham@opera.com on 2010-06-15)
48. RE: HTML-A11Y Task Force Recommendation: ISSUE-74 Canvas-Accessibility (from xn--mlform-iua@xn--mlform-iua.no on 2010-06-15)
49. RE: HTML-A11Y Task Force Recommendation: ISSUE-74 Canvas-Accessibility (from Paul.Cotton@microsoft.com on 2010-06-14)
50. HTML-A11Y Task Force Recommendation: ISSUE-74 Canvas-Accessibility (from janina@rednote.net on 2010-06-14)
51. {minutes} HTML WG telecon 2010-06-10: action items, decision policy, task force reports, publication status (from adrianba@microsoft.com on 2010-06-10)
52. RE: {agenda} HTML WG telecon 2010-05-27 (from adrianba@microsoft.com on 2010-05-27)
53. Re: {agenda} HTML WG telecon 2010-05-27 (from faulkner.steve@gmail.com on 2010-05-27)
54. Re: {agenda} HTML WG telecon 2010-05-27 (from laura.lee.carlson@gmail.com on 2010-05-27)
55. {agenda} HTML WG telecon 2010-05-27 (from rubys@intertwingly.net on 2010-05-26)
56. {agenda} HTML WG telecon 2010-05-13: Action items, surveys, Task Force reports (from mjs@apple.com on 2010-05-12)
57. RE: {agenda} HTML WG telcon 2010-04-29: Action items, new issues, Task Force reports - minutes of the meeting (from adrianba@microsoft.com on 2010-04-29)
58. Minutes of HTML WG meeting, Apr 15 2010 (from Paul.Cotton@microsoft.com on 2010-04-19)
59. {agenda} HTML WG telcon 2010-04-15: Action items, issues, decision policy, task forces, TPAC (from rubys@intertwingly.net on 2010-04-14)
60. Minutes of HTML WG meeting, Apr 8 2010 (from Paul.Cotton@microsoft.com on 2010-04-08)
61. Re: Patial Change request proposal for Issue 74 Canvas accessibility (from mjs@apple.com on 2010-04-01)
62. [minutes] 20100325 HTML teleconference (from plh@w3.org on 2010-03-30)
63. Re: {agenda} HTML WG telcon 2010-03-25: decision policy, issue status, updates from meetings, task force reports (from mjs@apple.com on 2010-03-24)
64. {agenda} HTML WG telcon 2010-03-25: decision policy, issue status, updates from meetings, task force reports (from rubys@intertwingly.net on 2010-03-24)
65. Patial Change request proposal for Issue 74 Canvas accessibility (from schwer@us.ibm.com on 2010-03-18)
66. Re: Breakdown of issues (from rubys@intertwingly.net on 2010-03-12)
67. Breakdown of issues (from mjs@apple.com on 2010-03-12)
68. Re: {agenda} HTML WG telcon 2010-03-11: decision policy, proposals, task forces (from singer@apple.com on 2010-03-11)
69. {agenda} HTML WG telcon 2010-03-11: decision policy, proposals, task forces (from rubys@intertwingly.net on 2010-03-10)
70. Re: change proposal: Provide accessibility implementation information (in the Canvas 2d Context specification) for focus rectangle and caret (from mjs@apple.com on 2010-03-08)
71. [minutes] HTML WG 2010004 (from plh@w3.org on 2010-03-04)
72. {agenda} HTML WG telcon 2010-03-04: actions, publications, decision policy, issues (from Paul.Cotton@microsoft.com on 2010-03-03)
73. {agenda} HTML WG telcon 2010-03-04: actions, publications, decision policy, issues (from Paul.Cotton@microsoft.com on 2010-03-03)
74. Subject: {agenda} HTML WG telcon 2010-02-25: actions, issues, publication (from mjs@apple.com on 2010-02-24)
75. Re: Issue 85 and (from faulkner.steve@gmail.com on 2010-02-18)
76. RE: {agenda} HTML WG telcon 2010-02-18: actions, issues, publication (from Paul.Cotton@microsoft.com on 2010-02-18)
77. RE: {agenda} HTML WG telcon 2010-02-18: actions, issues, publication (from geoff_freed@wgbh.org on 2010-02-17)
78. Re: {agenda} HTML WG telcon 2010-02-18: actions, issues, publication (from janina@rednote.net on 2010-02-17)
79. {agenda} HTML WG telcon 2010-02-18: actions, issues, publication (from mjs@apple.com on 2010-02-17)
80. Re: {agenda} HTML WG telcon 2010-01-14: AIs, CfC/CfPs, TFs, plus: heartbeat docs (from shelley.just@gmail.com on 2010-01-13)
81. {agenda} HTML WG telcon 2010-01-14: AIs, CfC/CfPs, TFs, plus: heartbeat docs (from rubys@intertwingly.net on 2010-01-13)
82. Re: ISSUE-74: canvas-accessibility - Chairs Solicit Proposals (from mjs@apple.com on 2010-01-12)
83. RE: {agenda} HTML WG telecon 2010-01-07 (from ishida@w3.org on 2010-01-11)
84. {agenda} HTML WG telecon 2010-01-07 (from mjs@apple.com on 2010-01-06)
85. {agenda} HTML WG telcon 2009-12-17: action items, calls for consensus/proposals, task forces (from Paul.Cotton@microsoft.com on 2009-12-15)
86. {agenda} HTML WG telcon 2009-12-17: action items, calls for consensus/proposals, task forces (from Paul.Cotton@microsoft.com on 2009-12-15)
87. Re: {agenda} HTML WG telcon 2009-10-29: action items, calls for consensus/proposals, task forces (from shelley.just@gmail.com on 2009-12-10)
88. Re: {agenda} HTML WG telcon 2009-10-29: action items, calls for consensus/proposals, task forces (from shelley.just@gmail.com on 2009-12-10)
89. Re: ISSUE-74: canvas-accessibility - Chairs Solicit Proposals (from chaals@opera.com on 2009-12-10)
90. {agenda} HTML WG telcon 2009-10-29: action items, calls for consensus/proposals, task forces (from rubys@intertwingly.net on 2009-12-09)
91. Re: ISSUE-74: canvas-accessibility - Chairs Solicit Proposals (from mjs@apple.com on 2009-12-09)
92. Re: ISSUE-74: canvas-accessibility - Chairs Solicit Proposals (from chaals@opera.com on 2009-12-09)
93. ISSUE-74: canvas-accessibility - Chairs Solicit Proposals (from mjs@apple.com on 2009-12-08)
94. [Bug 7011] [in off-bug discussion] canvas accessible fallback provision is under specified (from bugzilla@wiggum.w3.org on 2009-11-03)
95. minutes Re: {agenda} HTML WG telcon 2009-10-29: issues, action items, calls for consensus/proposals, task forces, F2F... (from cooper@w3.org on 2009-10-29)
96. Re: {agenda} HTML WG telcon 2009-10-29: issues, action items, calls for consensus/proposals, task forces, F2F... (from singer@apple.com on 2009-10-29)
97. Re: {agenda} HTML WG telcon 2009-10-29: issues, action items, calls for consensus/proposals, task forces, F2F... (from msporny@digitalbazaar.com on 2009-10-29)
98. {agenda} HTML WG telcon 2009-10-29: issues, action items, calls for consensus/proposals, task forces, F2F... (from rubys@intertwingly.net on 2009-10-28)
99. [Bug 7011] [in off-bug discussion] canvas accessible fallback provision is under specified (from bugzilla@wiggum.w3.org on 2009-09-28)
100. {minutes} HTML WG telcon 2009-08-27 (from annevk@opera.com on 2009-08-27)
101. {agenda} HTML WG telcon 2009-08-27 *PLEASE-READ* (from rubys@intertwingly.net on 2009-08-26)
102. Path to Last Call (was closing various issues) (from rubys@intertwingly.net on 2009-08-22)
103. Re: ISSUE-53: mediatypereg - suggest closing on 2009-09-03 (from ian@hixie.ch on 2009-08-22)
104. Re: ISSUE-53: mediatypereg - suggest closing on 2009-09-03 (from rubys@intertwingly.net on 2009-08-22)
105. {agenda} HTML WG telcon 2009-08-20 (from rubys@intertwingly.net on 2009-08-19)
106. {minutes} HTML WG telcon 2009-08-13 for review (from connolly@w3.org on 2009-08-13)
107. RE: Issue-74/Action-133 canvas-accessibility (from jfoliot@stanford.edu on 2009-08-12)
108. Re: {agenda} HTML WG telcon 2009-08-13 (from cooper@w3.org on 2009-08-12)
109. Re: Issue-74/Action-133 canvas-accessibility and ISSUE-15 immediate-mode-graphics [was: {agenda} HTML WG telcon 2009-08-13] (from mjs@apple.com on 2009-08-12)
110. Re: Begin discussions for pushing Last Call into 2010 (from rubys@intertwingly.net on 2009-08-12)
111. Re: {agenda} HTML WG telcon 2009-08-13 (from singer@apple.com on 2009-08-12)
112. Begin discussions for pushing Last Call into 2010 (from shelleyp@burningbird.net on 2009-08-12)
113. Re: Issue-74/Action-133 canvas-accessibility and ISSUE-15 immediate-mode-graphics [was: {agenda} HTML WG telcon 2009-08-13] (from connolly@w3.org on 2009-08-12)
114. Re: {agenda} HTML WG telcon 2009-08-13 (from shelleyp@burningbird.net on 2009-08-12)
115. {agenda} HTML WG telcon 2009-08-13 (from rubys@intertwingly.net on 2009-08-12)
116. minutes HTML weekly 9 July for review (from connolly@w3.org on 2009-07-09)

Related notes:

Display change log