gtk3 a11y: Drop VclEventId::TabpageActivate processing

Drop the manual processing of `VclEventId::TabpageActivate`
in the gtk3 a11y bridge.

As mentioned in

commit c45c64aeb57dce91965d7be54601128946455c90
Author: Michael Weghorn <m.weghorn@posteo.de>
Date:   Mon May 6 14:44:36 2024 +0200

tdf#160806 tdf#160837 gtk3 a11y: Drop handling of some VclEventIds

, the a11y bridge should not have to handle VCL events itself,
but all relevant events should be forwarded to the a11y
event listener as appropriate `AccessibleEventObject` and be handled
by the a11y event listener instead, see `AtkListener::notifyEvent`
for the gtk3 implementation.

By now, most if not all tab pages should be native GTK widgets
anyway.
For non-native ones, `VCLXAccessibleTabControl::ProcessWindowEvent`
contains handling for the `VclEventId::TabpageActivate` event that
should be taking care of forwarding that as the corresponding
a11y event to the a11y bridges. If anything is still missing after
this commit, that's probably a good starting point for further
analysis.

Change-Id: I5b3f64c973d4030d2b68be6dff1d771bc0cef405
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/167255
Tested-by: Jenkins
Reviewed-by: Michael Weghorn <m.weghorn@posteo.de>

1 files changed, 0 insertions, 24 deletions

diff --git a/vcl/unx/gtk3/a11y/atkutil.cxx b/vcl/unx/gtk3/a11y/atkutil.cxx
index d10bc3b27967..51b783b2d4fd 100644
--- a/vcl/unx/gtk3/a11y/atkutil.cxx
+++ b/vcl/unx/gtk3/a11y/atkutil.cxx
@@ -274,27 +274,6 @@ void DocumentFocusListener::detachRecursive(
     }
 }
 
-/*****************************************************************************/
-
-/*
- * page tabs in gtk are widgets, so we need to simulate focus events for those
- */
-
-static void handle_tabpage_activated(vcl::Window *pWindow)
-{
-    uno::Reference< accessibility::XAccessible > xAccessible =
-        pWindow->GetAccessible();
-
-    if( ! xAccessible.is() )
-        return;
-
-    uno::Reference< accessibility::XAccessibleSelection > xSelection(
-        xAccessible->getAccessibleContext(), uno::UNO_QUERY);
-
-    if( xSelection.is() )
-        atk_wrapper_notify_focus_change(xSelection->getSelectedAccessibleChild(0));
-}
-
 rtl::Reference<DocumentFocusListener> GtkSalData::GetDocumentFocusListener()
 {
     rtl::Reference<DocumentFocusListener> xDFL = m_xDocumentFocusListener.get();
@@ -312,9 +291,6 @@ static void WindowEventHandler(void *, VclSimpleEvent& rEvent)
     {
         switch (rEvent.GetId())
         {
-        case VclEventId::TabpageActivate:
-            handle_tabpage_activated(static_cast< ::VclWindowEvent const * >(&rEvent)->GetWindow());
-            break;
 
         case VclEventId::ComboboxSetText:
             // This looks quite strange to me. Stumbled over this when fixing #i104290#.