Bug 290075

Summary: [css-anchor-position-1] Implement position-area in CSS grids
Product: WebKit Reporter: Kiet Ho <kiet.ho>
Component: CSSAssignee: fantasai <fantasai.bugs>
Status: RESOLVED FIXED    
Severity: Normal CC: fantasai.bugs, kiet.ho, koivisto, webkit-bug-importer
Priority: P2 Keywords: InRadar
Version: WebKit Nightly Build   
Hardware: Unspecified   
OS: Unspecified   
Bug Depends on:    
Bug Blocks: 275447    
Attachments:
Description Flags
Reproduction
none
Screenshot (Chrome on left, WebKit on right) none

Kiet Ho
Reported 2025-03-19 16:48:37 PDT
Created attachment 474634 [details] Reproduction Google Chrome 136.0.7077.0 (Official Build) canary (arm64) WebKit 292377@main See attached repro. Repro explanation: * Entire document is a 2x3 CSS grid of size 200x300px * Anchor is orange box of size 100x100px and placed at row 2, column 2 * Anchor positioned is black box of size 100x100px, position-area: top right relative to the anchor Anchor positioned box should be on the top right corner of the anchor, but is top left instead.
Attachments
Reproduction (859 bytes, text/html)
2025-03-19 16:48 PDT, Kiet Ho 		no flags
Details
Screenshot (Chrome on left, WebKit on right) (103.25 KB, image/png)
2025-03-19 16:53 PDT, Kiet Ho 		no flags
Details
View All Add attachment proposed patch, testcase, etc.
Radar WebKit Bug Importer
Comment 1 2025-03-19 16:48:44 PDT
<rdar://problem/147452098>
Radar WebKit Bug Importer
Comment 3 2025-03-19 16:49:25 PDT
<rdar://problem/147452147>
Radar WebKit Bug Importer
Comment 4 2025-03-19 16:50:36 PDT
<rdar://problem/147452121>
Kiet Ho
Comment 5 2025-03-19 16:53:01 PDT
Created attachment 474635 [details] Screenshot (Chrome on left, WebKit on right)
fantasai
Comment 6 2025-04-20 09:02:06 PDT
Pull request: https://github.com/WebKit/WebKit/pull/44311
EWS
Comment 7 2025-04-21 21:34:01 PDT
Committed 293946@main (94049f599538): <https://commits.webkit.org/293946@main> Reviewed commits have been landed. Closing PR #44311 and removing active labels.
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