[Webkit-unassigned] [Bug 26869] New: Add fill modesfor CSS Animations (don't reset state after the animation finishes)

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=26869

           Summary: Add fill modesfor CSS Animations (don't reset state
                    after the animation finishes)
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Macintosh
        OS/Version: Mac OS X 10.5
            Status: UNCONFIRMED
          Severity: Normal
          Priority: P2
         Component: CSS
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: andy at andymatuschak.org
                CC: dino at apple.com


The following animation seems simple:
- box 1 slides on-screen from the left
- then box 2 slides on-screen from the right
- (they stay there)

But because the styles of animated objects are reset after the animation
finishes, this is not easily solved without Javascript or other ugliness.

Core Animation has fill modes which specify this kind of behavior:
http://developer.apple.com/documentation/graphicsimaging/Reference/CAMediaTiming_protocol/Introduction/Introduction.html#//apple_ref/doc/constant_group/Fill_Modes

Something like this would really help build nice sequential animations.


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