[whatwg] Entering fullscreen when already in fullscreen mode [was: Fullscreen]

Darin Fisher darin at chromium.org
Mon Oct 17 15:55:33 PDT 2011

Hi Anne,

Thanks for working on this spec!  I have more questions, but I'll just start
with one.  If enterFullscreen() is called when the browsing context is
already being displayed fullscreen, what should happen?  (It looks like
Safari 5.1 ignores the second call to webkitRequestFullScreen.)

I also find it curious that there is a bit of a dead-time between the
request to enter fullscreen and the fullscreenchange event (nit:
"fullscreenchange" instead of "fullscreenchanged" to be consistent, right?).
 It appears that JS cannot request to cancel out of fullscreen mode until
the fullscreenchange event is generated (i.e., until the fullscreen flag is
set).  It could cause pain for developers if there is no guaranteed response
to enterFullscreen().  Did my request succeed, did it fail?  What happened?


On Fri, Oct 14, 2011 at 9:27 PM, Anne van Kesteren <annevk at opera.com> wrote:

> I wrote up a draft:
> http://dvcs.w3.org/hg/**fullscreen/raw-file/tip/**Overview.html<http://dvcs.w3.org/hg/fullscreen/raw-file/tip/Overview.html>
> Defining when exactly the "fullscreen enabled" flag is set for Document
> objects I will leave up to HTML. As well as defining the "allowfullscreen"
> attribute. Presumably it should be set for Document objects associated with
> the top-level browsing context and descendant browsing context as long as
> their browsing context container has the aforementioned attribute set.
> If we want to transition from fullscreen when navigating, HTML can define
> that as well, neatly integrated in the navigation section. The "Model"
> section of the Fullscreen specification has an appropriate hook.
> I have not added the key restrictions given earlier emails. Unfortunately
> there was not that much feedback on them, but maybe this draft will help on
> that front!
> I went with "fullscreen" rather than "full screen" as that seemed cleaner
> and easier to type. I also used "enter" and "exit" rather than "request" and
> "cancel" as they seemed somewhat nicer too. I'm less attached to this latter
> change though.
> --
> Anne van Kesteren
> http://annevankesteren.nl/

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