[Webkit-unassigned] [Bug 94786] MediaController play() doesn't work

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=94786





--- Comment #4 from Jer Noble <jer.noble at apple.com>  2012-08-24 09:12:23 PST ---
(In reply to comment #3)
> Thanks, it make sense for me now. While I still have questions here.
> For instance, there are two video tags, with id vid1 & vid2.
> 
> var con = new MediaController();
> vid1.controller = con;
> vid2.controller = con;
> con.play();//won't work since MediaController is blocked.
> vid1.play();//won't work since MediaController is blocked(because MediaElement 2 is still paused) 

Not quite.  The MediaController is only blocked if *all* of its slaved media elements are paused.  So at this point, the MediaController goes from a blocked media controller to a playing one.  Vid1 will begin playing.

> vid2.play(); //works, since MediaController is not blocked now.
> con.pause();//MediaController is paused. How about its slaved elements, should be paused or not? 

They are blocked on their MediaController.  They are still "playing" technically, but their timelines are stopped.

> con.play();//what the result should be? As the spec says: "A MediaController is a blocked media controller if the MediaController is a paused media controller...",so no video should play?

Once the MediaController goes from a paused media controller to a playing media controller, the slaved media elements should begin playing.  (Assuming the MediaController does not become blocked for some other reason, like one of the slaved media elements stalling, etc.)

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