- From: <bugzilla@jessica.w3.org>
- Date: Tue, 02 Aug 2011 03:21:04 +0000
- To: public-html-a11y@w3.org
http://www.w3.org/Bugs/Public/show_bug.cgi?id=13514 Summary: Support different resolutions for command elements and images Product: HTML WG Version: unspecified Platform: All OS/Version: All Status: NEW Keywords: a11y, a11ytf Severity: normal Priority: P2 Component: HTML5 spec (editor: Ian Hickson) AssignedTo: ian@hixie.ch ReportedBy: gcl-0039@access-research.org QAContact: public-html-bugzilla@w3.org CC: mike@w3.org, public-html-wg-issue-tracking@w3.org, public-html@w3.org, public-html-a11y@w3.org HTML5 should allow the author to link a command elements to multiple images optimized for different screen resolutions and zoom ratios. This is currently supported for page icons but not for icons associated with the command element. It should also allow static images (e.g. the img element) to also reference multiple images optimized for different resolutions, so that pages can better adapt to different screen resolutions and zoom ratios without having to resort to complex scripting. Use case: Todd is working on a high resolution monitor but has moderately low vision, so he uses his browser's zoom setting so that he can read the text easily and discern the details of images. He goes to a web page that includes multiple buttons implemented using command elements, each represented by an icon. Unfortunately, since HTML5 only allows a command element to link to a single image, the browser has to use brute force methods to enlarge the image, with a result that's blocky and difficult to understand. If the author had been able to link to multiple versions of the image, each optimized for different screen resolutions or sizes, Todd could have been presented with graphical buttons he could understand. Some competing solutions to this problem have been proposed, including CSS Image Values, multi-resolution images, and of course script solutions, but it is not yet clear which if any of these will survive. -- Configure bugmail: http://www.w3.org/Bugs/Public/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
Received on Tuesday, 2 August 2011 03:21:05 UTC