Bug682: fix Tab key navigation in Preferences, particulary Keyboard

src/prefs/PrefsDialog.cpp

@@ -73,6 +73,9 @@ BEGIN_EVENT_TABLE(PrefsDialog, wxDialog)
    EVT_BUTTON(wxID_CANCEL, PrefsDialog::OnCancel)
    EVT_BUTTON(wxID_APPLY, PrefsDialog::OnApply)
    EVT_TREE_KEY_DOWN(wxID_ANY, PrefsDialog::OnTreeKeyDown) // Handles key events when tree has focus
+
+   EVT_CHAR_HOOK(PrefsDialog::OnCharHook)
+
 END_EVENT_TABLE()
 
 
@@ -373,6 +376,12 @@ void PrefsDialog::OnTreeKeyDown(wxTreeEvent & event)
       event.Skip(); // Ensure standard behavior when enter is not pressed
 }
 
+void PrefsDialog::OnCharHook(wxKeyEvent &event)
+{
+   // Common behavior, let's define it in just one place
+   wxPanelWrapper::DoCharHook(event);
+}
+
 void PrefsDialog::OnOK(wxCommandEvent & WXUNUSED(event))
 {
    RecordExpansionState();

src/prefs/PrefsDialog.h

@@ -61,6 +61,8 @@ class PrefsDialog /* not final */ : public wxDialog
    void OnApply(wxCommandEvent & e);
    void OnTreeKeyDown(wxTreeEvent & e); // Used to dismiss the dialog when enter is pressed with focus on tree
 
+   void OnCharHook(wxKeyEvent &e);
+
    void SelectPageByName(const wxString &pageName);
 
    // Accessor to help implementations of SavePreferredPage(),