tdf#115451 Set focus on sidebar deck button when clicked

Change-Id: I5b20fd1bf97fed1d6c787ea27100244b86e56524
Reviewed-on: https://gerrit.libreoffice.org/49262Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Katarina Behrens <Katarina.Behrens@cib.de>

sfx2/source/sidebar/TabBar.cxx

@@ -296,8 +296,9 @@ Image TabBar::GetItemImage(const DeckDescriptor& rDeckDescriptor) const
         mxFrame);
 }
 
-IMPL_LINK_NOARG(TabBar::Item, HandleClick, Button*, void)
+IMPL_LINK(TabBar::Item, HandleClick, Button*, pBtn, void)
 {
+    pBtn->GrabFocus();
     try
     {
         maDeckActivationFunctor(msDeckId);