1553485 - [wpt-sync] Sync PR 16950 - Keep scroll by keyboard after child focused node is removed

Status: RESOLVED INVALID

(Core :: DOM: Core & HTML, defect, P4)

Description

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

Sync web-platform-tests PR 16950 into mozilla-central (this bug is closed when the sync is complete).

PR: https://github.com/web-platform-tests/wpt/pull/16950
Details from upstream follow.

Jihwan Marc Kim <[e-mail]> wrote:

Keep scroll by keyboard after child focused node is removed

So far, scroll stops if focused child node is removed
while scrolling parent node.
This is because the event handler passes the |MousePressNode|.
If focused child node(|MousePressNode|) is removed,
it will be null and scrollable area changed to document.

|LogicalScroll| finds scrollable area from |MousePressNode|.
If we save this scrollable area node,
we can get one more chance to find proper node to scroll.

Bug: 493078
Change-Id: I6e81ca0a0d15e0def66c8457840ca9e1343e8dba

Reviewed-on: https://chromium-review.googlesource.com/1611620
WPT-Export-Revision: c91dbb486821727b1e40c6251f9725737a4d8e26

Comment 1

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

Pushed to try https://treeherder.mozilla.org/#/jobs?repo=try&revision=4a5ae5da2f4b4b40adc1fcecdccb5cd5c1286bc6

Comment 2

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

Pushed to try https://treeherder.mozilla.org/#/jobs?repo=try&revision=218e4afa9539c15954eb6940a46c196cfe6207ce

Comment 3

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

Pushed to try https://treeherder.mozilla.org/#/jobs?repo=try&revision=8d37a9ca5d58c3b22fd33c611dd729208703d75a