Bug 229747 - REGRESSION (r280017): Calling getBoundingClientRect() on an empty element with "break-before: column" in columns returns a rect with all zeros
Summary: REGRESSION (r280017): Calling getBoundingClientRect() on an empty element wit...
Status: RESOLVED FIXED
Alias: None
Product: WebKit
Classification: Unclassified
Component: DOM (show other bugs)
Version: Safari Technology Preview
Hardware: Unspecified Unspecified
: P2 Normal
Assignee: Simon Fraser (smfr)
URL:
Keywords: InRadar
: 230020 (view as bug list)
Depends on:
Blocks:
 
Reported: 2021-08-31 17:30 PDT by Simon Fraser (smfr)
Modified: 2021-09-07 14:14 PDT (History)
10 users (show)

See Also:

Attachments
Test case (5.67 KB, text/html)
2021-08-31 17:34 PDT, Simon Fraser (smfr) 		no flags Details
Test case (5.52 KB, text/html)
2021-08-31 17:42 PDT, Simon Fraser (smfr) 		no flags Details
Patch (5.90 KB, patch)
2021-09-02 18:54 PDT, Simon Fraser (smfr) 		no flags Details | Formatted Diff | Diff
Show Obsolete (1) View All Add an attachment (proposed patch, testcase, etc.)

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Description Simon Fraser (smfr) 2021-08-31 17:30:44 PDT 
Calling getBoundingClientRect() on a 0x0 element in columns returns a rect with all zeros.
Comment 1 Simon Fraser (smfr) 2021-08-31 17:30:57 PDT 
<rdar://82537314>
Comment 2 Simon Fraser (smfr) 2021-08-31 17:34:01 PDT 
Created attachment 436973 [details]
Test case
Comment 3 Simon Fraser (smfr) 2021-08-31 17:38:08 PDT 
Conceptually we are trying to answer the question "for this 0x0 rect at y=100, in columns with height 100, is it at the bottom of column 1 or the top of column 2".
Comment 4 Simon Fraser (smfr) 2021-08-31 17:42:57 PDT 
Created attachment 436974 [details]
Test case

Ironically Chrome and FF have exactly opposite behaviors.
Comment 5 Simon Fraser (smfr) 2021-09-02 18:54:45 PDT 
Created attachment 437230 [details]
Patch
Comment 6 EWS 2021-09-06 12:30:26 PDT 
Committed r282063 (241363@main): <https://commits.webkit.org/241363@main>

All reviewed patches have been landed. Closing bug and clearing flags on attachment 437230 [details].
Comment 7 Simon Fraser (smfr) 2021-09-07 14:14:19 PDT 
*** Bug 230020 has been marked as a duplicate of this bug. ***