1949308 - [wpt-sync] Sync PR 50815 - Fix paint invalidation for ::selection style changes

Status: RESOLVED FIXED

(Core :: Layout: Generated Content, Lists, and Counters, task, P4)

Description

[Web Platform Test Sync Bot [:wpt-sync] (Matrix: #interop:mozilla.org)]

Sync web-platform-tests PR 50815 into mozilla-central (this bug is closed when the sync is complete).

PR: https://github.com/web-platform-tests/wpt/pull/50815
Details from upstream follow.

Stephen Chenney <[e-mail]> wrote:

Fix paint invalidation for ::selection style changes

The existing code for invalidating paint on a ::selection
style change assumed the old model of inheritance for ::selection,
where the style only applied to the element it matched for. Under
that assumption it only checked the direct text children of the
element.

With Highlight Inheritance the assumption is invalid, and the
entire subtree may be affected by the style change. So process
the subtree checking for selected content.

Fixed: 395934180
Change-Id: Ifa8ac3309d79ce4b3696ed042cb822361a7b490c
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6283486
Reviewed-by: Xianzhu Wang \<[e-mail]>
Commit-Queue: Stephen Chenney \<[e-mail]>
Cr-Commit-Position: refs/heads/main@{#1422232}

Comment 1

[Web Platform Test Sync Bot [:wpt-sync] (Matrix: #interop:mozilla.org)]

Pushed to try (stability) https://treeherder.mozilla.org/#/jobs?repo=try&revision=60e748a2a3427b1789e2b22fb77fdc08319c852c

Comment 2

[Web Platform Test Sync Bot [:wpt-sync] (Matrix: #interop:mozilla.org)]

CI Results

Ran 0 Firefox configurations based on mozilla-central, and Firefox, Chrome, and Safari on GitHub CI

Total 1 tests

Status Summary

Firefox

PASS: 1

Chrome

FAIL: 1

Safari

PASS: 1

Links

GitHub PR Head
GitHub PR Base

Comment 3

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/1346750cfe72
[wpt PR 50815] - Fix paint invalidation for ::selection style changes, a=testonly

Comment 4

[Cristina Horotan [:chorotan]]

https://hg.mozilla.org/mozilla-central/rev/1346750cfe72