[Webkit-unassigned] [Bug 143488] New: Animation is not stopped when animation class is removed

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=143488

            Bug ID: 143488
           Summary: Animation is not stopped when animation class is
                    removed
    Classification: Unclassified
           Product: WebKit
           Version: 528+ (Nightly build)
          Hardware: Unspecified
                OS: Linux
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Animations
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: ed_dvd at yahoo.com
                CC: dino at apple.com

Created attachment 250278
  --> https://bugs.webkit.org/attachment.cgi?id=250278&action=review
HTML file showing the problem

The problem is found with GTK port when accelerated Compositing is used.

The attached test application is doing the following steps:
1. Apply translateZ(0) to <p> element
2. Apply CSS class called .delayedScrollingLabelA.animate to perform animation using -webkit-animation property.
3. Remove .delayedScrollingLabelA.animate class.

At step (3), it is expected that animation should stop, however it continues. The problem does not happen if step (1) is omitted.

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