Bug 285257 – text-box-trim accumulation fails when updating the CSS dynamically

• Status: RESOLVED
• Resolution: FIXED
• Component: Layout and Rendering

Created attachment 473720 [details]
video

Hi,

According to this issue (https://github.com/w3c/csswg-drafts/issues/5426) when the text-box: trim-both is set on a parent, it should trim start on the first element, and trim end on the last element.

This is what I am experiencing on Safari (both stable and nightly) but only on initial load. If I update the CSS in the inspector, then the output end up incorrect, with the second element having it's start being trimmed.

Please see the attach video (on initial load it is correct, but incorrect when you update it).

[Radar WebKit Bug Importer]

<rdar://problem/142386761>

[zalan]

Thank you for filing this bug report on text-box!

[zalan]

Created attachment 473782 [details]
Patch

[Tim Nguyen (:ntim)]

Comment on attachment 473782 [details]
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=473782&action=review

> LayoutTests/imported/w3c/web-platform-tests/css/css-inline/text-box-trim/text-box-trim-set-dynamically-expected.html:4
> +<link rel="match" href="text-box-trim-set-dynamically-ref.html">

ditto

> LayoutTests/imported/w3c/web-platform-tests/css/css-inline/text-box-trim/text-box-trim-set-dynamically-ref.html:4
> +<link rel="match" href="text-box-trim-set-dynamically-ref.html">

You can remove the link[rel=match] from the ref/expected files.

[zalan]

Created attachment 473808 [details]
[fast-cq]Patch

[EWS]

Committed 288480@main (bbbde60e23e9): <https://commits.webkit.org/288480@main>

All reviewed patches have been landed. Closing bug and clearing flags on attachment 473808 [details].