Refactored the translate infobars.

chrome/browser/translate/languages_menu_model2.h

+// 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.
+
+#ifndef CHROME_BROWSER_TRANSLATE_LANGUAGES_MENU_MODEL2_H_
+#define CHROME_BROWSER_TRANSLATE_LANGUAGES_MENU_MODEL2_H_
+
+#include "app/menus/simple_menu_model.h"
+
+class TranslateInfoBarDelegate2;
+class String16;
+
+// A menu model that builds the contents of the language menus in the translate
+// infobar. This menu has only one level (no submenus).
+class LanguagesMenuModel2 : public menus::SimpleMenuModel,
+                            public menus::SimpleMenuModel::Delegate {
+ public:
+  enum LanguageType {
+    ORIGINAL,
+    TARGET
+  };
+  LanguagesMenuModel2(TranslateInfoBarDelegate2* translate_delegate,
+                      LanguageType language_type);
+  virtual ~LanguagesMenuModel2();
+
+  // menus::SimpleMenuModel::Delegate implementation:
+  virtual bool IsCommandIdChecked(int command_id) const;
+  virtual bool IsCommandIdEnabled(int command_id) const;
+  virtual bool GetAcceleratorForCommandId(int command_id,
+                                          menus::Accelerator* accelerator);
+  virtual void ExecuteCommand(int command_id);
+
+ private:
+  TranslateInfoBarDelegate2* translate_infobar_delegate_;
+  LanguageType language_type_;
+
+  DISALLOW_COPY_AND_ASSIGN(LanguagesMenuModel2);
+};
+
+#endif  // CHROME_BROWSER_TRANSLATE_LANGUAGES_MENU_MODEL2_H_