- From: Ian Hickson <ian@hixie.ch>
- Date: Mon, 2 Feb 2009 23:06:18 +0000 (UTC)
- To: James Craig <jcraig@apple.com>
- Cc: public-html@w3.org
On Mon, 2 Feb 2009, James Craig wrote: > > > > > > 1. Presentational image (no alternative text necessary) > > > 2. Meaningful image (no alternative text provided) > > > 3. Meaningful image (alternative text provided) > > The reason there needs to be a differentiator is because each host > language (in this case, HTML 5) needs a way to determine when an image > should use the "presentation" role and when it should use the default > "img" role so the user agent can convey the role to an assistive > technology API. An author or an authoring tool may have that > information, but there is currently no way to convey it in the language. There is already a differentiator. Assuming a conforming document, number 1 above will have alt="" (empty), number 2 will have no alt attribute at all, and number 3 will have alt="something". HTH, -- Ian Hickson U+1047E )\._.,--....,'``. fL http://ln.hixie.ch/ U+263A /, _.. \ _\ ;`._ ,. Things that are impossible just take longer. `._.-(,_..'--(,_..'`-.;.'
Received on Monday, 2 February 2009 23:06:56 UTC