don't check whether the window is shown and enabled in AcceptsFocus() itself

as it makes overriding it in derived classes problematic; provide a separate
non virtual CanAcceptFocus() method checking whether the window accepts focus
and if it can accept it now and use it instead of AcceptsFocus(); documented
AcceptsFocus() and AcceptsFocusFromKeyboard()


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@45055 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/mac/carbon/toplevel.cpp

@@ -591,7 +591,7 @@ pascal OSStatus wxMacTopLevelMouseEventHandler( EventHandlerCallRef handler , Ev
             if ( wxevent.GetEventType() == wxEVT_LEFT_DOWN )
             {
                 // ... that is set focus to this window
-                if (currentMouseWindow->AcceptsFocus() && wxWindow::FindFocus()!=currentMouseWindow)
+                if (currentMouseWindow->CanAcceptFocus() && wxWindow::FindFocus()!=currentMouseWindow)
                     currentMouseWindow->SetFocus();
             }