Bug 54647

Summary: Transitioning between transform:translate() with different units doesn't work
Product: WebKit Reporter: Oli Studholme <webkit.org>
Component: CSSAssignee: Nobody <webkit-unassigned>
Status: RESOLVED DUPLICATE    
Severity: Normal CC: cmarrin, dino, simon.fraser
Priority: P2    
Version: 528+ (Nightly build)   
Hardware: Mac (Intel)   
OS: OS X 10.6   
URL: http://oli.jp/bugs/browser/transform-translate.html
Attachments:
Description Flags
Testcase none

Oli Studholme
Reported 2011-02-17 06:23:22 PST
When transitioning between two transform:translate() values, the transition only works correctly if both pre- and post-transition translate states use the same length units. * In WebKit Version 5.0.3 (6533.19.4, r78685) & Safari Version 5.0.3 (6533.19.4) when the transform:translate() units differ and the transition is stopped before completing, the transition jumps to the end translate state before reverting at a higher speed to finish at the correct time * In Chrome 9.0.597.102 (and Opera 11.01) if transform:translate() length units differ (initial = px, :hover = %), then the change is instant and the transition is ignored. * Firefox 4 beta 8 gets a gold star for rendering as expected http://oli.jp/bugs/browser/transform-translate.html
Attachments
Testcase (2.81 KB, text/html)
2011-02-17 10:37 PST, Simon Fraser (smfr) 		no flags
Details
View All Add attachment proposed patch, testcase, etc.
Simon Fraser (smfr)
Comment 1 2011-02-17 10:37:16 PST
Created attachment 82830 [details] Testcase
Simon Fraser (smfr)
Comment 2 2011-02-17 10:37:38 PST
I see different behavior with and without accelerated compositing enabled.
Simon Fraser (smfr)
Comment 3 2011-06-06 21:00:14 PDT
(In reply to comment #2) > I see different behavior with and without accelerated compositing enabled. Actually that's not true. This is related to interrupted transitions.
Simon Fraser (smfr)
Comment 4 2011-06-06 21:09:15 PDT
This is expected for now. We don't have the smarts to convert both endpoints to the same units before transitioning.
Simon Fraser (smfr)
Comment 5 2011-06-06 21:09:49 PDT
*** This bug has been marked as a duplicate of bug 23775 ***
Note You need to log in before you can comment on or make changes to this bug.