avoid duplicating wxWindow::HandleCommand() in wxFrame, only handle the commands for the frame menu bar elements there: this avoid generating duplicate events if a command event handler skips

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@54498 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/frame.h

@@ -87,10 +87,19 @@ public:
     // and exists mainly in order to be overridden in the MDI parent frame
     // which also looks at its active child menu bar
     virtual const wxMenuItem *FindItemInMenuBar(int menuId) const;
-#endif // wxUSE_MENUS
 
-    // process menu command: returns true if processed
+    // generate menu command corresponding to the given menu item
+    //
+    // returns true if processed
+    bool ProcessCommand(wxMenuItem *item);
+
+    // generate menu command corresponding to the given menu command id
+    //
+    // returns true if processed
     bool ProcessCommand(int winid);
+#else
+    bool ProcessCommand(int WXUNUSED(winid)) { return false; }
+#endif // wxUSE_MENUS
 
     // status bar functions
     // --------------------

src/common/framecmn.cpp

@@ -183,42 +183,45 @@ void wxFrameBase::SendSizeEvent()
 // misc
 // ----------------------------------------------------------------------------
 
+#if wxUSE_MENUS
+
 bool wxFrameBase::ProcessCommand(int id)
 {
-#if wxUSE_MENUS
     wxMenuBar *bar = GetMenuBar();
     if ( !bar )
         return false;
 
-    wxCommandEvent commandEvent(wxEVT_COMMAND_MENU_SELECTED, id);
+    wxMenuItem *item = bar->FindItem(id);
+    if ( !item )
+        return false;
+
+    return ProcessCommand(item);
+}
+
+bool wxFrameBase::ProcessCommand(wxMenuItem *item)
+{
+    wxCommandEvent commandEvent(wxEVT_COMMAND_MENU_SELECTED, item->GetId());
     commandEvent.SetEventObject(this);
 
-    wxMenuItem *item = bar->FindItem(id);
+    if (!item->IsEnabled())
-    if (item)
+        return true;
+
+    if ((item->GetKind() == wxITEM_RADIO) && item->IsChecked() )
+        return true;
+
+    if (item->IsCheckable())
     {
-        if (!item->IsEnabled())
+        item->Toggle();
-            return true;
 
-        if ((item->GetKind() == wxITEM_RADIO) && item->IsChecked() )
+        // use the new value
-            return true;
+        commandEvent.SetInt(item->IsChecked());
-
-        if (item->IsCheckable())
-        {
-            item->Toggle();
-
-            // use the new value
-            commandEvent.SetInt(item->IsChecked());
-        }
     }
 
     return HandleWindowEvent(commandEvent);
-#else // !wxUSE_MENUS
-    wxUnusedVar(id);
-
-    return false;
-#endif // wxUSE_MENUS/!wxUSE_MENUS
 }
 
+#endif // wxUSE_MENUS
+
 // Do the UI update processing for this window. This is
 // provided for the application to call if it wants to
 // force a UI update, particularly for the menus and toolbar.

src/msw/frame.cpp

@@ -948,45 +948,29 @@ bool wxFrame::HandleSize(int WXUNUSED(x), int WXUNUSED(y), WXUINT id)
 
 bool wxFrame::HandleCommand(WXWORD id_, WXWORD cmd, WXHWND control)
 {
-    // sign extend to int from short before comparing with the other int ids
+    // we only need to handle the menu and accelerator commands from the items
-    int id = (signed short)id_;
+    // of our menu bar, base wxWindow class already handles the rest
-
+    if ( !control && (cmd == 0 /* menu */ || cmd == 1 /* accel */) )
-    if ( control )
-    {
-        // In case it's e.g. a toolbar.
-        wxWindow *win = wxFindWinFromHandle(control);
-        if ( win )
-            return win->MSWCommand(cmd, id);
-    }
-
-    // handle here commands from menus and accelerators
-    if ( cmd == 0 || cmd == 1 )
     {
 #if wxUSE_MENUS_NATIVE
-        if ( wxCurrentPopupMenu )
+        if ( !wxCurrentPopupMenu )
-        {
-            wxMenu *popupMenu = wxCurrentPopupMenu;
-            wxCurrentPopupMenu = NULL;
-
-            return popupMenu->MSWCommand(cmd, id);
-        }
 #endif // wxUSE_MENUS_NATIVE
-
-#if defined(__SMARTPHONE__) && defined(__WXWINCE__)
-        // handle here commands from Smartphone menu bar
-        if ( wxTopLevelWindow::HandleCommand(id, cmd, control ) )
         {
-            return true;
+            wxMenuBar * const mbar = GetMenuBar();
-        }
+            if ( mbar )
-#endif // __SMARTPHONE__ && __WXWINCE__
+            {
+                // sign extend to int from short before comparing with the
+                // other int ids
+                const int id = (signed short)id_;
 
-        if ( ProcessCommand(id) )
+                wxMenuItem * const mitem = mbar->FindItem(id);
-        {
+                if ( mitem )
-            return true;
+                    return ProcessCommand(mitem);
+            }
         }
     }
 
-    return false;
+    return wxFrameBase::HandleCommand(id_, cmd, control);;
 }
 
 #if wxUSE_MENUS
@@ -1084,7 +1068,14 @@ WXLRESULT wxFrame::MSWWindowProc(WXUINT message, WXWPARAM wParam, WXLPARAM lPara
                 UnpackCommand((WXWPARAM)wParam, (WXLPARAM)lParam,
                               &id, &hwnd, &cmd);
 
-                processed = HandleCommand(id, cmd, (WXHWND)hwnd);
+                HandleCommand(id, cmd, (WXHWND)hwnd);
+
+                // don't pass WM_COMMAND to the base class whether we processed
+                // it or not because we did generate an event for it (our
+                // HandleCommand() calls the base class version) and we must
+                // not do it again or the handlers which skip the event would
+                // be called twice
+                processed = true;
             }
             break;
 

src/msw/window.cpp

@@ -5093,12 +5093,8 @@ bool wxWindowMSW::HandleCommand(WXWORD id_, WXWORD cmd, WXHWND control)
     // coming from a control to wxEVT_COMMAND_MENU_SELECTED
     if ( !control )
     {
-        // If no child window, it may be an accelerator, e.g. for a popup menu
+        wxCommandEvent event(wxEVT_COMMAND_MENU_SELECTED, id);
-        // command
-
-        wxCommandEvent event(wxEVT_COMMAND_MENU_SELECTED);
         event.SetEventObject(this);
-        event.SetId(id);
         event.SetInt(id);
 
         return HandleWindowEvent(event);