1646655 - [wpt-sync] Sync PR 24231 - [FragmentItem] Fix hit-testing floats in legacy root

Status: RESOLVED FIXED

(Core :: DOM: CSS Object Model, task, P4)

Description

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

Sync web-platform-tests PR 24231 into mozilla-central (this bug is closed when the sync is complete).

PR: https://github.com/web-platform-tests/wpt/pull/24231
Details from upstream follow.

Koji Ishii <[e-mail]> wrote:

[FragmentItem] Fix hit-testing floats in legacy root

This patch fixes hit-testing floating objects in a legacy
root.

With |NGPaintFragment|, floats are in children, and that
regular traversal can cover this case.

With |FragmentItem|, floats are either in |NGFragmentItems|
if it has an inline formatting context, or in children
otherwise. This difference requires additional branch to the
legacy fallback when hit-testing floating objects.

Bug: 1096259
Change-Id: I8565eb663781318233c21482270804cf254e0aec

Reviewed-on: https://chromium-review.googlesource.com/2249249
WPT-Export-Revision: fdc02f3f069bb56f39d8324afec632876fa99dd5

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=4bc1fe3d8b3e596e71f1f0cb4b761b51a38f94b1

Comment 2

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

CI Results

Ran 11 Firefox configurations based on mozilla-central, and Firefox, Chrome, and Safari on GitHub CI

Total 1 tests and 2 subtests

Status Summary

Firefox

OK : 1
PASS: 2

Chrome

OK : 1
PASS: 2

Safari

OK : 1
PASS: 2

Links

Gecko CI (Treeherder)
GitHub PR Head
GitHub PR Base

Comment 3

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/8599abc6d805
[wpt PR 24231] - [FragmentItem] Fix hit-testing floats in legacy root, a=testonly

Comment 4

[Dorel Luca [:dluca]]

https://hg.mozilla.org/mozilla-central/rev/8599abc6d805