[Linux Views] Refactor accelerator handler related code.

views/widget/gtk_views_window.cc

 // Copyright (c) 2010 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+#include <gtk/gtk.h>
+#include "views/event.h"
 #include "views/widget/gtk_views_window.h"
 #include "views/focus/focus_manager.h"
 
 G_BEGIN_DECLS
 
 G_DEFINE_TYPE(GtkViewsWindow, gtk_views_window, GTK_TYPE_WINDOW)
 
-static void gtk_views_window_move_focus(GtkWindow *window,
+static void gtk_views_window_move_focus(GtkWindow* window,
                                         GtkDirectionType dir) {
   views::FocusManager* focus_manager =
       views::FocusManager::GetFocusManagerForNativeWindow(window);
   if (focus_manager) {
-    // We only support tab traversing by tab keys, so just ignore all other
-    // cases silently.
-    if (dir == GTK_DIR_TAB_BACKWARD || dir == GTK_DIR_TAB_FORWARD)
-      focus_manager->AdvanceFocus(dir == GTK_DIR_TAB_BACKWARD);
+    GdkEvent* key = gtk_get_current_event();
+    if (key && key->type == GDK_KEY_PRESS) {
+      views::KeyEvent key_event(reinterpret_cast<GdkEventKey*>(key));
+      focus_manager->OnKeyEvent(key_event);
+    }
   } else if (GTK_WINDOW_CLASS(gtk_views_window_parent_class)->move_focus) {
     GTK_WINDOW_CLASS(gtk_views_window_parent_class)->move_focus(window, dir);
   }
 }
 
 static void gtk_views_window_class_init(
     GtkViewsWindowClass* views_window_class) {
   GtkWindowClass* window_class =
       reinterpret_cast<GtkWindowClass*>(views_window_class);
   window_class->move_focus = gtk_views_window_move_focus;
 }
 
 static void gtk_views_window_init(GtkViewsWindow* window) {
 }
 
 GtkWidget* gtk_views_window_new(GtkWindowType type) {
   return GTK_WIDGET(g_object_new(GTK_TYPE_VIEWS_WINDOW, "type", type, NULL));
 }
 
 G_END_DECLS