+ return GDK_VoidSymbol;
+}
+#endif
+
+bool
+key_press_focus_accelerator_handler (Gtk::Window& window, GdkEventKey* ev)
+{
+ GtkWindow* win = window.gobj();
+ GtkWidget* focus = gtk_window_get_focus (win);
+ bool special_handling_of_unmodified_accelerators = false;
+ bool allow_activating = true;
+
+ if (focus) {
+ if (GTK_IS_ENTRY(focus) || Keyboard::some_magic_widget_has_focus()) {
+ special_handling_of_unmodified_accelerators = true;
+ }
+ }
+
+#ifdef GTKOSX
+ /* should this be universally true? */
+ if (Keyboard::some_magic_widget_has_focus ()) {
+ allow_activating = false;
+ }
+#endif
+
+
+ DEBUG_TRACE (DEBUG::Accelerators, string_compose ("Win = %1 Key event: code = %2 state = %3 special handling ? %4 magic widget focus ? %5 allow_activation ? %6\n",
+ win,
+ ev->keyval,
+ ev->state,
+ special_handling_of_unmodified_accelerators,
+ Keyboard::some_magic_widget_has_focus(),
+ allow_activating));
+
+ /* This exists to allow us to override the way GTK handles
+ key events. The normal sequence is:
+
+ a) event is delivered to a GtkWindow
+ b) accelerators/mnemonics are activated
+ c) if (b) didn't handle the event, propagate to
+ the focus widget and/or focus chain
+
+ The problem with this is that if the accelerators include
+ keys without modifiers, such as the space bar or the
+ letter "e", then pressing the key while typing into
+ a text entry widget results in the accelerator being
+ activated, instead of the desired letter appearing
+ in the text entry.
+
+ There is no good way of fixing this, but this
+ represents a compromise. The idea is that
+ key events involving modifiers (not Shift)
+ get routed into the activation pathway first, then
+ get propagated to the focus widget if necessary.
+
+ If the key event doesn't involve modifiers,
+ we deliver to the focus widget first, thus allowing
+ it to get "normal text" without interference
+ from acceleration.
+
+ Of course, this can also be problematic: if there
+ is a widget with focus, then it will swallow
+ all "normal text" accelerators.
+ */
+
+#ifdef GTKOSX
+ if (!special_handling_of_unmodified_accelerators) {
+ if (ev->state & GDK_MOD1_MASK) {
+ /* we're not in a text entry or "magic focus" widget so we don't want OS X "special-character"
+ text-style handling of alt-<key>. change the keyval back to what it would be without
+ the alt key. this way, we see <alt>-v rather than <alt>-radical and so on.
+ */
+ guint keyval_without_alt = osx_keyval_without_alt (ev->keyval);
+
+ if (keyval_without_alt != GDK_VoidSymbol) {
+ DEBUG_TRACE (DEBUG::Accelerators, string_compose ("Remapped %1 to %2\n", gdk_keyval_name (ev->keyval), gdk_keyval_name (keyval_without_alt)));
+ ev->keyval = keyval_without_alt;
+ }