Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: 1651c7a400657b0b7d885fe0fb07d9bf869eafa0
https://github.com/WebKit/WebKit/commit/1651c7a400657b0b7d885fe0fb07d9bf869eafa0
Author: Lily Spiniolas <[email protected]>
Date: 2025-09-25 (Thu, 25 Sep 2025)
Changed paths:
M
LayoutTests/imported/w3c/web-platform-tests/pointerevents/pointerevent_pointer_boundary_events_after_reappending_last_over_target-expected.txt
M
LayoutTests/imported/w3c/web-platform-tests/pointerevents/pointermove_after_pointerover_target_removed.tentative-expected.txt
M
LayoutTests/imported/w3c/web-platform-tests/uievents/mouse/mousemove_after_mouseover_target_removed-expected.txt
M Source/WebCore/page/EventHandler.cpp
M Source/WebCore/page/EventHandler.h
Log Message:
-----------
`mousemove` is not fired on parent of `mouseover` targets that are removed at
`mouseover`
https://bugs.webkit.org/show_bug.cgi?id=299398
rdar://161203639
Reviewed by Abrar Rahman Protyasha.
`EventHandler::dispatchMouseEvent` calls `updateMouseEventTargetNode` which
fires
boundary events such as `mouseover` when necessary. If a page has event
listeners which
delete the target node when `mouseover` fires for the target node, we will
still attempt
to dispatch a `mousemove` event to the disconnected node.
To fix this, `EventHandler::nodeWillBeRemoved` now stores the ancestor of the
node to be
removed if the node is the current element underneath the mouse. Then, in
`EventHandler::dispatchMouseEvent`, if the override is set and the event type
is `mousemove`,
we dispatch the event to override element instead (the parent of the removed
element).
Tested by
imported/w3c/web-platform-tests/pointerevents/mousemove_after_mouseover_target_removed.html
*
LayoutTests/imported/w3c/web-platform-tests/pointerevents/pointerevent_pointer_boundary_events_after_reappending_last_over_target-expected.txt:
*
LayoutTests/imported/w3c/web-platform-tests/pointerevents/pointermove_after_pointerover_target_removed.tentative-expected.txt:
*
LayoutTests/imported/w3c/web-platform-tests/uievents/mouse/mousemove_after_mouseover_target_removed-expected.txt:
* Source/WebCore/page/EventHandler.cpp:
(WebCore::EventHandler::nodeWillBeRemoved):
(WebCore::EventHandler::updateMouseEventTargetAfterLayoutIfNeeded):
(WebCore::EventHandler::dispatchMouseEvent):
* Source/WebCore/page/EventHandler.h:
Canonical link: https://commits.webkit.org/300522@main
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