- From: Jim Allan <jimallan@tsbvi.edu>
- Date: Thu, 06 Dec 2007 11:31:44 -0600
- To: "'WAI-ua'" <w3c-wai-ua@w3.org>
My task from the Nov 11, 2007 telecon [1]: Make a proposal for new checkpoint related to native rendering of video and communication with AccessAPI etc. During the meeting we discussed the <video> element in HTML5 [2]. <video> is to be rendered natively by the UA. I shared information about the alpha version of Opera that was demonstrating native rendering of the <video> element [3] and the associated controls (stop, start, volume, seek, etc.). Video controls are an attribute (@controls) of the video element [4] and are to appear in the DOM. During our discussion, we (KF, GJR, PP, JR, JA) agreed that if something with controls is rendered natively by the UA then the controls become part of the 'chrome' of the UA. Then all of the guidelines pertaining to the device independence, operation, navigation, and exposure to AT apply to the natively rendered controls. There are issues: a. "Rendered Natively" is a cause for concern, as UAAG does not have a definition. This definition would also apply to UAs that have native support for SVG, MathML, etc. b. In addition to the DOM, should the UA explicitly communicate the role and state of controls to the appropriate accessibility API or platform accessibility mechanism? I think YES. c. How does the UA reveal the keybindings, if any, to the user? I think this can be covered in techniques. d. The author may provide scripted controls in place of the native controls. Should the user be able to override or toggle between the author supplied controls and UA supplied controls? I think yes. f. Need for a proposal for a new checkpoint...not sure. 1. http://www.w3.org/2007/11/15-ua-minutes.html 2. http://www.w3.org/html/wg/html5/#video 3. http://dev.opera.com/articles/view/a-call-for-video-on-the-web-opera-vid/ 4. http://www.w3.org/html/wg/html5/#controls Jim Allan, Webmaster & Statewide Technical Support Specialist Texas School for the Blind and Visually Impaired 1100 W. 45th St., Austin, Texas 78756 voice 512.206.9315 fax: 512.206.9264 http://www.tsbvi.edu/ >>> Share to Win! <<<
Received on Thursday, 6 December 2007 18:57:20 UTC