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// Copyright (c) 2009 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_STATUS_CLOCK_MENU_BUTTON_H_
#define CHROME_BROWSER_CHROMEOS_STATUS_CLOCK_MENU_BUTTON_H_
#pragma once
#include "base/scoped_ptr.h"
#include "base/timer.h"
#include "chrome/browser/chromeos/cros/system_library.h"
#include "chrome/browser/chromeos/status/status_area_button.h"
#include "chrome/common/notification_observer.h"
#include "chrome/common/notification_service.h"
#include "unicode/calendar.h"
#include "views/controls/button/menu_button.h"
#include "views/controls/menu/menu_2.h"
#include "views/controls/menu/view_menu_delegate.h"
namespace chromeos {
class StatusAreaHost;
// The clock menu button in the status area.
// This button shows the current time.
class ClockMenuButton : public StatusAreaButton,
public views::ViewMenuDelegate,
public menus::MenuModel,
public SystemLibrary::Observer {
public:
explicit ClockMenuButton(StatusAreaHost* host);
virtual ~ClockMenuButton();
// menus::MenuModel implementation.
virtual bool HasIcons() const { return false; }
virtual int GetItemCount() const;
virtual menus::MenuModel::ItemType GetTypeAt(int index) const;
virtual int GetCommandIdAt(int index) const { return index; }
virtual string16 GetLabelAt(int index) const;
virtual bool IsLabelDynamicAt(int index) const { return true; }
virtual bool GetAcceleratorAt(int index,
menus::Accelerator* accelerator) const { return false; }
virtual bool IsItemCheckedAt(int index) const { return false; }
virtual int GetGroupIdAt(int index) const { return 0; }
virtual bool GetIconAt(int index, SkBitmap* icon) const { return false; }
virtual menus::ButtonMenuItemModel* GetButtonMenuItemAt(int index) const {
return NULL;
}
virtual bool IsEnabledAt(int index) const;
virtual menus::MenuModel* GetSubmenuModelAt(int index) const { return NULL; }
virtual void HighlightChangedTo(int index) {}
virtual void ActivatedAt(int index);
virtual void MenuWillShow() {}
// Overridden from SystemLibrary::Observer:
virtual void TimezoneChanged(const icu::TimeZone& timezone);
// Updates the time on the menu button. Can be called by host if timezone
// changes.
void UpdateText();
protected:
virtual int horizontal_padding() { return 3; }
private:
// views::ViewMenuDelegate implementation.
virtual void RunMenu(views::View* source, const gfx::Point& pt);
// Updates text and schedules the timer to fire at the next minute interval.
void UpdateTextAndSetNextTimer();
base::OneShotTimer<ClockMenuButton> timer_;
// The clock menu.
// NOTE: we use a scoped_ptr here as menu calls into 'this' from the
// constructor.
scoped_ptr<views::Menu2> clock_menu_;
StatusAreaHost* host_;
DISALLOW_COPY_AND_ASSIGN(ClockMenuButton);
};
} // namespace chromeos
#endif // CHROME_BROWSER_CHROMEOS_STATUS_CLOCK_MENU_BUTTON_H_
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