Bug 271691

Summary:

ComplexTextController: No glyph is displayed for unpaired surrogate pair

Product:

WebKit

Reporter:

Fujii Hironori <Hironori.Fujii>

Component:

Text

Assignee:

Fujii Hironori <Hironori.Fujii>

Status:

RESOLVED FIXED

Severity:

Normal

CC:

fantasai.bugs, vitor.roriz, webkit-bug-importer

Priority:

Keywords:

InRadar

Version:

WebKit Nightly Build

Hardware:

Unspecified

OS:

Unspecified

See Also:

https://bugs.webkit.org/show_bug.cgi?id=229392

Attachments:

Description	Flags
[screenshot] Safari, Chrome and Firefox	none
WIP patch	none
Adding an Arabic character to unpaired-surrogate.html	none
Adding an Devanagari character to unpaired-surrogate.html	none

Fujii Hironori

Reported 2024-03-25 22:17:47 PDT

The following tests contains unpaired surrogate pairs. Safari, Chrome and Firefox render them as black square, question mark or hex code. But, GTK and Windows ports show no glyph. fast/text/unpaired-surrogate.html fast/text/word-break-column-gap-display-flex-utf16-surrogates.html

Attachments
[screenshot] Safari, Chrome and Firefox (283.00 KB, image/png) 2024-03-25 22:18 PDT, Fujii Hironori	no flags	Details
WIP patch (590 bytes, patch) 2024-03-25 22:20 PDT, Fujii Hironori	no flags	Details Formatted Diff Diff
Adding an Arabic character to unpaired-surrogate.html (217 bytes, text/html) 2024-03-27 17:49 PDT, Fujii Hironori	no flags	Details
Adding an Devanagari character to unpaired-surrogate.html (217 bytes, text/html) 2024-03-27 17:53 PDT, Fujii Hironori	no flags	Details
Show Obsolete (1) View All Add attachment proposed patch, testcase, etc.

Fujii Hironori

Comment 1 2024-03-25 22:18:26 PDT

Created attachment 470599 [details] [screenshot] Safari, Chrome and Firefox

Fujii Hironori

Comment 2 2024-03-25 22:20:53 PDT

Created attachment 470600 [details] WIP patch

Fujii Hironori

Comment 3 2024-03-26 15:29:09 PDT

Pull request: https://github.com/WebKit/WebKit/pull/26488

Fujii Hironori

Comment 4 2024-03-27 17:49:05 PDT

Created attachment 470629 [details] Adding an Arabic character to unpaired-surrogate.html

Fujii Hironori

Comment 5 2024-03-27 17:53:39 PDT

Created attachment 470630 [details] Adding an Devanagari character to unpaired-surrogate.html

EWS

Comment 6 2024-03-28 13:09:03 PDT

Committed 276797@main (85696a6b3a7b): <https://commits.webkit.org/276797@main> Reviewed commits have been landed. Closing PR #26488 and removing active labels.

Radar WebKit Bug Importer

Comment 7 2024-03-28 13:10:13 PDT

<rdar://problem/125572751>

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