RESOLVED FIXED 118635
Fixed position elements should layout relative to transformed container 
https://bugs.webkit.org/show_bug.cgi?id=118635
Summary Fixed position elements should layout relative to transformed container
Ryosuke Niwa
Reported 2013-07-12 22:59:25 PDT
Consider merging https://chromium.googlesource.com/chromium/blink/+/f052baa7402aa050a3e5c633a4b374ecf7162926 The original layer coordinates conversion code contains a bug that it forgets to return for the simple case where the fixed position container found is already the ancestor layer wanted, and the code falls through to the special path intended for RenderFlowThread.
Attachments
Test case shows that we have a bug (973 bytes, text/html)
2022-08-22 15:53 PDT, Simon Fraser (smfr) 		no flags
Details
View All Add attachment proposed patch, testcase, etc.
Simon Fraser (smfr)
Comment 2 2022-08-22 12:20:37 PDT
I think our containing block logic is correct, but there's still a FIXME for this in compositing code.
Simon Fraser (smfr)
Comment 3 2022-08-22 15:53:57 PDT
Created attachment 461806 [details] Test case shows that we have a bug
Simon Fraser (smfr)
Comment 4 2022-08-22 15:59:34 PDT
// FIXME: Handle fixed inside of a transform, which should not behave as fixed.
Simon Fraser (smfr)
Comment 5 2022-08-22 16:46:09 PDT
Pull request: https://github.com/WebKit/WebKit/pull/3560
EWS
Comment 6 2022-08-25 23:48:22 PDT
Committed 253809@main (546a1c950d42): <https://commits.webkit.org/253809@main> Reviewed commits have been landed. Closing PR #3560 and removing active labels.
Radar WebKit Bug Importer
Comment 7 2022-08-25 23:49:16 PDT
<rdar://problem/99174247>
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