1955696 - [wpt-sync] Sync PR 51524 - [Selection] delegated target text control are mouse event handled

Status: RESOLVED FIXED

(Core :: CSS Parsing and Computation, task, P4)

Description

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

Sync web-platform-tests PR 51524 into mozilla-central (this bug is closed when the sync is complete).

PR: https://github.com/web-platform-tests/wpt/pull/51524
Details from upstream follow.

Di Zhang <[e-mail]> wrote:

[Selection] delegated target text control are mouse event handled

We add the feature DelegatesFocusTextControlFix,
which fixes this case: when the mouse target element is a shadow host
with delegatesFocus, but its focusable area is a text control element.

Currently, this text control element will be marked as focused and not
handled. The selection will be set on where the click happened.
That is wrong because, in this case, focus and selection should both be
on the text control.
We fix this by updating the logic in MouseEventManager::HandleMouseFocus

1. If focusable area is already focused, no need to re-focus and return
   not handled so selection can be set where click happened.
2. Else, if focusable area is a text control, focus it and return
   handled so selection stays on it.
3. Else, focus it and return not handled so selection can be set where
   click happened.

Change-Id: I553aec3d49c6984194ae8eefe2ac95673429d8c7
Bug: 400317114
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6324829
Reviewed-by: Mason Freed \<[e-mail]>
Commit-Queue: Di Zhang \<[e-mail]>
Cr-Commit-Position: refs/heads/main@{#1436159}

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=207e1ef1d11b60828e0f57b151d03736a701700a

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 and 1 subtests

Status Summary

Firefox

OK : 1
PASS: 1

Chrome

OK : 1
FAIL: 1

Safari

OK : 1
FAIL: 1

Links

GitHub PR Head
GitHub PR Base

Comment 3

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/5db25d6fe7eb
[wpt PR 51524] - [Selection] delegated target text control are mouse event handled, a=testonly

Comment 4

[Cristian Tuns]

https://hg.mozilla.org/mozilla-central/rev/5db25d6fe7eb