add a way to return focus to the main widget

Change-Id: Ia06eaf6021b22a63a74f8a0b7edc96339dfb2e17
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/87970
Tested-by: Jenkins
Reviewed-by: Caolán McNamara <caolanm@redhat.com>

4 files changed, 14 insertions, 8 deletions

diff --git a/vcl/inc/salframe.hxx b/vcl/inc/salframe.hxx
index 4b540d61ca0e..b83138e29d40 100644
--- a/vcl/inc/salframe.hxx
+++ b/vcl/inc/salframe.hxx
@@ -180,6 +180,9 @@ public:
     // Window to top and grab focus
     virtual void            ToTop( SalFrameToTop nFlags ) = 0;
 
+    // grab focus to the main widget, can be no-op if the vclplug only uses one widget
+    virtual void            GrabFocus() {}
+
     // this function can call with the same
     // pointer style
     virtual void            SetPointer( PointerStyle ePointerStyle ) = 0;
diff --git a/vcl/inc/unx/gtk/gtkframe.hxx b/vcl/inc/unx/gtk/gtkframe.hxx
index 3259991329c0..7b6d01d872c3 100644
--- a/vcl/inc/unx/gtk/gtkframe.hxx
+++ b/vcl/inc/unx/gtk/gtkframe.hxx
@@ -433,6 +433,7 @@ public:
     // pointer style
     virtual void                SetPointer( PointerStyle ePointerStyle ) override;
     virtual void                CaptureMouse( bool bMouse ) override;
+    virtual void                GrabFocus() override;
     virtual void                SetPointerPos( long nX, long nY ) override;
 
     // flush output buffer
diff --git a/vcl/source/window/mouse.cxx b/vcl/source/window/mouse.cxx
index 16993d199987..5894d88bd94b 100644
--- a/vcl/source/window/mouse.cxx
+++ b/vcl/source/window/mouse.cxx
@@ -397,6 +397,7 @@ void Window::ImplGrabFocusToDocument( GetFocusFlags nFlags )
     {
         if( !pWin->GetParent() )
         {
+            pWin->mpWindowImpl->mpFrame->GrabFocus();
             pWin->ImplGetFrameWindow()->GetWindow( GetWindowType::Client )->ImplGrabFocus(nFlags);
             return;
         }
diff --git a/vcl/unx/gtk3/gtk3gtkframe.cxx b/vcl/unx/gtk3/gtk3gtkframe.cxx
index ce2ed4f3ab47..85106bb86035 100644
--- a/vcl/unx/gtk3/gtk3gtkframe.cxx
+++ b/vcl/unx/gtk3/gtk3gtkframe.cxx
@@ -1925,16 +1925,14 @@ void GtkSalFrame::ToTop( SalFrameToTop nFlags )
     if( m_pWindow )
     {
         if( isChild( false ) )
-        {
-            gtk_widget_set_can_focus(GTK_WIDGET(m_pFixedContainer), true);
-            gtk_widget_grab_focus(GTK_WIDGET(m_pFixedContainer));
-        }
+            GrabFocus();
         else if( gtk_widget_get_mapped( m_pWindow ) )
         {
             if (!(nFlags & SalFrameToTop::GrabFocusOnly))
                 gtk_window_present_with_time(GTK_WINDOW(m_pWindow), GetLastInputEventTime());
             else
                 gdk_window_focus(gtk_widget_get_window(m_pWindow), GetLastInputEventTime());
+            GrabFocus();
         }
         else
         {
@@ -2478,6 +2476,12 @@ namespace
     }
 }
 
+void GtkSalFrame::GrabFocus()
+{
+    gtk_widget_set_can_focus(GTK_WIDGET(m_pFixedContainer), true);
+    gtk_widget_grab_focus(GTK_WIDGET(m_pFixedContainer));
+}
+
 gboolean GtkSalFrame::signalButton(GtkWidget*, GdkEventButton* pEvent, gpointer frame)
 {
     UpdateLastInputEventTime(pEvent->time);
@@ -2498,10 +2502,7 @@ gboolean GtkSalFrame::signalButton(GtkWidget*, GdkEventButton* pEvent, gpointer
 
         // focus on click
         if (!bDifferentEventWindow)
-        {
-            gtk_widget_set_can_focus(GTK_WIDGET(pThis->m_pFixedContainer), true);
-            gtk_widget_grab_focus(GTK_WIDGET(pThis->m_pFixedContainer));
-        }
+            pThis->GrabFocus();
     }
 
     SalMouseEvent aEvent;