Bug 232431

Summary: sticky th or td in table does not stops at specified top
Product: WebKit Reporter: Shun MIZUKAMI <shun>
Component: ScrollingAssignee: Martin Robinson <mrobinson>
Severity: Normal CC: bfulgham, changseok, clopez, edwin.hoffland, esprehn+autocc, ews-watchlist, glenn, kondapallykalyan, mrobinson, pdr, simon.fraser, webkit-bug-importer, youennf
Priority: P2 Keywords: InRadar
Version: Safari 15   
Hardware: Mac (Apple Silicon)   
OS: macOS 11   
See Also: https://github.com/web-platform-tests/wpt/pull/31806
Description Flags
Patch none

Description Shun MIZUKAMI 2021-10-28 03:50:09 PDT
Created attachment 442689 [details]



Actual Results:

td cell stops at the top of scroll container

Expected Behavior:

td cell stops at the position specified by `top` from the top of scroll container
Comment 1 Radar WebKit Bug Importer 2021-11-04 03:51:17 PDT
Comment 2 Martin Robinson 2021-11-09 03:14:13 PST
Created attachment 443670 [details]
Comment 3 Martin Robinson 2021-11-09 03:15:07 PST
The issue here seems to be that m_frameRect of the table cell is not relative to its container for some reason, but to the table.
Comment 4 Martin Robinson 2021-11-30 08:21:52 PST
The issue here is that RenderTableCells have frame rects that are relative to the RenderTableSection, but their container is the RenderTableRow. I have a fix for this and hope to post it tomorrow.
Comment 5 Martin Robinson 2021-12-01 01:06:13 PST
Created attachment 445540 [details]
Comment 6 EWS Watchlist 2021-12-01 01:07:16 PST
This patch modifies the imported WPT tests. Please ensure that any changes on the tests (not coming from a WPT import) are exported to WPT. Please see https://trac.webkit.org/wiki/WPTExportProcess
Comment 7 EWS 2021-12-02 00:18:28 PST
Committed r286417 (244763@main): <https://commits.webkit.org/244763@main>

All reviewed patches have been landed. Closing bug and clearing flags on attachment 445540 [details].
Comment 8 Martin Robinson 2021-12-22 06:47:11 PST
*** Bug 233207 has been marked as a duplicate of this bug. ***
Comment 9 Brent Fulgham 2022-02-04 10:57:17 PST
This change should be present in STP 139, iOS 15.4 Beta, and macOS 12.3 Beta.