Bug 21217 – Animations assert when navigating from page

• Status: RESOLVED
• Resolution: FIXED
• Component: CSS

[Dean Jackson]

The Leaves example asserts when navigating from the page (to another page with animation)

ASSERTION FAILED: !running()
(WebCore/page/animation/AnimationBase.cpp:704 void WebCore::AnimationBase::updateStateMachine(WebCore::AnimationBase::AnimStateInput, double))

[Dean Jackson]

Created attachment 23914 [details]
zipfile of leaves example

[Chris Marrin]

Created attachment 23929 [details]
Patch to fix bug

[Chris Marrin]

I haven't added a testcase to the patch, because I don't know how I would write an automated test for it. You need to open one file, then open another and then hit the back button. I'm not sure how you would automate that.

(In reply to comment #3)
> I haven't added a testcase to the patch, because I don't know how I would write
> an automated test for it. You need to open one file, then open another and then
> hit the back button. I'm not sure how you would automate that.

Here is something to try: have a "test driver" document that loads the first document in an iframe, then navigates to the second document in the same iframe, then invokes the history.back method in the iframe. (Before you begin, see if the bug reproduces with an iframe).

[Darin Adler]

Comment on attachment 23929 [details]
Patch to fix bug

r=me

[Chris Marrin]

Sending        WebCore/ChangeLog
Sending        WebCore/page/animation/AnimationBase.cpp
Transmitting file data ..
Committed revision 37454.