Last modified: 2014-09-23 19:54:38 UTC
There is no alt for a video. The reason is that HTML5 video says there is no real need for an alternative with the video element, if you have timed text. But since neither the video nor the Timed Text is reachable with keyboard navigation from a thumbnail in an article, it means it's not accessible at all in our implementation.
We can add an alt of the video title for thumbnails. https://gerrit.wikimedia.org/r/31409 Are there any tools within mediaWiki for setting non conflicting tabindex? ... we could then set that for our control bar and trigger various actions on various inputs. tabindex="0"
Actually the latest reports actually advise against the usage of tabindex, since it breaks inline navigation of the content being read. (When tabbing using tabindex, a person will miss the context of the text that is surrounding the element). So interactable elements should be buttons or <a> targets, or define explicit role's using WAI-ARIA / WCAG 2.0 (as jquery ui does for instance). A user making use of keyboard or assistive navigation will not be able to interact with a <div> and a title. to trigger the 'onclick' event of that div.
(In reply to comment #1) > We can add an alt of the video title for thumbnails. > https://gerrit.wikimedia.org/r/31409 Status Merged
Going to https://commons.wikimedia.org/wiki/File:River_Rak_going_underground.ogv I see <img alt="File:River Rak going underground.ogv" Not sure about the tabindex part though. Could somebody clarify?
