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// Copyright (c) 2006-2008 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_CHROMEOS_LANGUAGE_MENU_BUTTON_H_
#define CHROME_BROWSER_CHROMEOS_LANGUAGE_MENU_BUTTON_H_
#include "app/menus/simple_menu_model.h"
#include "chrome/browser/chromeos/language_library.h"
#include "chrome/browser/chromeos/status_area_button.h"
#include "views/controls/menu/menu_2.h"
#include "views/controls/menu/view_menu_delegate.h"
class Browser;
class SkBitmap;
namespace chromeos {
// The language menu button in the status area.
// This class will handle getting the IME/XKB status and populating the menu.
class LanguageMenuButton : public views::MenuButton,
public views::ViewMenuDelegate,
public menus::MenuModel,
public LanguageLibrary::Observer {
public:
// If |browser| is null, options are unavailable and corresponding menu
// item is not shown. This happens when the button is shown on login
// screen and browser is not loaded yet.
explicit LanguageMenuButton(Browser* browser);
virtual ~LanguageMenuButton();
// menus::MenuModel implementation.
virtual bool HasIcons() const;
virtual int GetItemCount() const;
virtual menus::MenuModel::ItemType GetTypeAt(int index) const;
virtual int GetCommandIdAt(int index) const;
virtual string16 GetLabelAt(int index) const;
virtual bool IsLabelDynamicAt(int index) const;
virtual bool GetAcceleratorAt(int index,
menus::Accelerator* accelerator) const;
virtual bool IsItemCheckedAt(int index) const;
virtual int GetGroupIdAt(int index) const;
virtual bool GetIconAt(int index, SkBitmap* icon) const;
virtual bool IsEnabledAt(int index) const;
virtual menus::MenuModel* GetSubmenuModelAt(int index) const;
virtual void HighlightChangedTo(int index);
virtual void ActivatedAt(int index);
virtual void MenuWillShow();
// LanguageLibrary::Observer implementation.
virtual void LanguageChanged(LanguageLibrary* obj);
virtual void ImePropertiesChanged(LanguageLibrary* obj);
private:
// views::ViewMenuDelegate implementation.
virtual void RunMenu(views::View* source, const gfx::Point& pt);
// Update the status area with |name|.
void UpdateIcon(const std::wstring& name);
// Rebuilds |model_|. This function should be called whenever |language_list_|
// is updated, or ImePropertiesChanged() is called.
void RebuildModel();
// Returns true if the zero-origin |index| points to one of the input
// languages.
bool IndexIsInLanguageList(int index) const;
// Returns true if the zero-origin |index| points to one of the IME
// properties. When returning true, |property_index| is updated so that
// property_list.at(property_index) points to the menu item.
bool GetPropertyIndex(int index, int* property_index) const;
// Returns true if the zero-origin |index| points to the "Configure IME" menu
// item.
bool IndexPointsToConfigureImeMenuItem(int index) const;
// The current language list.
scoped_ptr<InputLanguageList> language_list_;
// We borrow menus::SimpleMenuModel implementation to maintain the current
// content of the pop-up menu. The menus::MenuModel is implemented using this
// |model_|.
scoped_ptr<menus::SimpleMenuModel> model_;
// The language menu which pops up when the button in status area is clicked.
views::Menu2 language_menu_;
// The browser object. May be null if the button is on login screen.
Browser* browser_;
DISALLOW_COPY_AND_ASSIGN(LanguageMenuButton);
};
} // namespace chromeos
#endif // CHROME_BROWSER_CHROMEOS_LANGUAGE_MENU_BUTTON_H_
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