- From: Richard Schwerdtfeger <schwer@us.ibm.com>
- Date: Mon, 31 May 2010 08:43:48 -0600
- To: James Craig <jcraig@apple.com>
- Cc: david.bolter@gmail.com, Eric Carlson <eric.carlson@apple.com>, Frank Olivier <franko@microsoft.com>, "public-canvas-api@w3.org" <public-canvas-api@w3.org>, public-canvas-api-request@w3.org, HTML Accessibility Task Force <public-html-a11y@w3.org>, public-html-a11y-request@w3.org, surkov.alexander@gmail.com
- Message-ID: <OF14105428.07B010D2-ON86257734.005038F5-86257734.0050EA80@us.ibm.com>
Folks, please review the current change request draft for the canvas API. James, regarding your rect() comment I had the same feelings and am glad you raised it. I did not like the four coordinates either, yet the 2D context API does not provide for a rectangle data type and given that they are trying to get HTML 5 to last call I was not sure we wanted to raise this issue now. Eric or Frank do you think this is something we should raise an issue on now for the 2D API or push this off to the future as James suggests? I would like to wrap up the change proposal at the June 7 meeting. So, please provide feedback this week. (See attached file: 2dcontext10-May-26.html) Rich Schwerdtfeger CTO Accessibility Software Group James Craig <jcraig@apple.com > To Sent by: Richard public-canvas-api Schwerdtfeger/Austin/IBM@IBMUS -request@w3.org cc david.bolter@gmail.com, Eric Carlson <eric.carlson@apple.com>, 05/25/2010 12:31 Frank Olivier PM <franko@microsoft.com>, "public-canvas-api@w3.org" <public-canvas-api@w3.org>, HTML Accessibility Task Force <public-html-a11y@w3.org>, public-html-a11y-request@w3.org, surkov.alexander@gmail.com Subject Re: Draft Revisions to Canvas 2D Context API to drive magnification Richard Schwerdtfeger wrote: > The group in attendance (per today's canvas accessibility call) determined that most accessibility APIs only provide a focus rectangle. Although the author can draw any shape they like it was agreed that when the the coordinates are passed for accessibility that they provided as a best fit rectangle. I will also make this all clear in the next draft for review. I can live with that, but I'd like to request that the syntax be such that it can be extended in the future. e.g., "rect(x1, y1, x2, y2)" instead of just "x1, y1, x2, y2". Even if polygons are not supported in the first release, setting a finite coordinate syntax to only allow for one shape for would make it more difficult to change once the accessibility APIs are updated to allow for more precise focus shapes.
Attachments
- image/gif attachment: graycol.gif
- image/gif attachment: pic03418.gif
- image/gif attachment: ecblank.gif
- text/html attachment: 2dcontext10-May-26.html
Received on Monday, 31 May 2010 14:44:37 UTC