[whatwg] Fullscreen Update

[Robert O'Callahan]

On Sat, Oct 29, 2011 at 10:47 PM, Robert O'Callahan <robert at ocallahan.org>wrote:

> I don't think punting on nested fullscreen is a good idea. It's not some
> edge case that most applications can't hit. For example, it will come up
> with any content that can go full-screen and can contain an embedded
> Youtube video. (It'll come up even more often if browser fullscreen UI is
> integrated with DOM fullscreen, which we definitely plan to do in Firefox.)
> If we don't support nested fullscreen well, then the user experience will
> be either
> -- making the video fullscreen while the containing content is already
> fullscreen simply doesn't work, or
> -- the video can go fullscreen, but when you exit fullscreen on the video,
> the containing content also loses fullscreen
>

Let me just clarify one thing. A browser's built-in "get out of
full-screen" user gesture will probably need to break out of all nested
fullscreen requests for security reasons. However, in-page UI to exit
full-screen (such as a button in pop-up video controls) should still be
able to return to the previous full-screen presentation.

Rob
-- 
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our sins and purify us from all unrighteousness. If we claim we have not
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