[Webkit-unassigned] [Bug 227733] Animation from scale(0) has missing backing store

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=227733

--- Comment #6 from Antoine Quint <graouts at webkit.org> ---
(In reply to Simon Fraser (smfr) from comment #5)
> When we call KeyframeEffect::computeExtentOfTransformAnimation() box.style()
> already reflects the first keyframe, so falling back to box.style() for the
> 100% keyframe doesn't work (it has scale(0) in it). We need to be able to
> get to the style which is not affected by keyframes.

The style not accounting for animations is stored on ElementAnimationRareData, and you may access it from KeyframeEffect with targetStyleable()->lastStyleChangeEventStyle().

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