[webkit-changes] [WebKit/WebKit] 3b4b83: AX ITM: fix for aria-activedescendant tests in iso...

[AndresGonzalezApple]

  Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: 3b4b837022dc1022cf0d8d42e382e3a3499acd00
      https://github.com/WebKit/WebKit/commit/3b4b837022dc1022cf0d8d42e382e3a3499acd00
  Author: Andres Gonzalez <andresg_22 at apple.com>
  Date:   2022-11-03 (Thu, 03 Nov 2022)

  Changed paths:
    M LayoutTests/accessibility-isolated-tree/TestExpectations
    M LayoutTests/accessibility/mac/aria-tree-activedescendant-expected.txt
    M LayoutTests/accessibility/mac/aria-tree-activedescendant.html
    M LayoutTests/accessibility/mac/combobox-activedescendant-notifications-expected.txt
    M LayoutTests/accessibility/mac/combobox-activedescendant-notifications.html
    M Source/WebCore/accessibility/AXObjectCache.cpp

  Log Message:
  -----------
  AX ITM: fix for aria-activedescendant tests in isolated tree mode.
https://bugs.webkit.org/show_bug.cgi?id=247400
<rdar://problem/101889227>

Reviewed by Chris Fleizach.

AXObjectCache::handleActiveDescendantChanged needs to update the isolated tree whether the notification element has focus or not. In addition, if the element is a combobox, the platform notification target needs also to be updated in the isolated tree.

AXObjectCache::handleActiveDescendantChanged now calls postPlatformNotification instead of postNotification which schedules a deferred notification that is not needed.

* LayoutTests/accessibility-isolated-tree/TestExpectations:
* LayoutTests/accessibility/mac/aria-tree-activedescendant-expected.txt:
* LayoutTests/accessibility/mac/aria-tree-activedescendant.html:
* LayoutTests/accessibility/mac/combobox-activedescendant-notifications-expected.txt:
* LayoutTests/accessibility/mac/combobox-activedescendant-notifications.html:
* Source/WebCore/accessibility/AXObjectCache.cpp:
(WebCore::AXObjectCache::handleActiveDescendantChanged):

Canonical link: https://commits.webkit.org/256279@main