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// Copyright (c) 2012 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 ASH_SYSTEM_CHROMEOS_TRAY_DISPLAY_H_
#define ASH_SYSTEM_CHROMEOS_TRAY_DISPLAY_H_
#include <map>
#include "ash/ash_export.h"
#include "ash/display/display_controller.h"
#include "ash/display/display_info.h"
#include "ash/system/tray/system_tray_item.h"
#include "base/strings/string16.h"
#include "ui/views/view.h"
namespace ash {
namespace test {
class AshTestBase;
}
namespace internal {
class DisplayView;
class ASH_EXPORT TrayDisplay : public SystemTrayItem,
public DisplayController::Observer {
public:
explicit TrayDisplay(SystemTray* system_tray);
virtual ~TrayDisplay();
// Overridden from DisplayControllerObserver:
virtual void OnDisplayConfigurationChanged() OVERRIDE;
private:
friend class TrayDisplayTest;
typedef std::map<int64, DisplayInfo> DisplayInfoMap;
static const char kNotificationId[];
// Scans the current display info and updates |display_info_|. Sets the
// previous data to |old_info| if it's not NULL.
void UpdateDisplayInfo(DisplayInfoMap* old_info);
// Compares the current display settings with |old_info| and determine what
// message should be shown for notification. Returns true if there's a
// meaningful change. Note that it's possible to return true and set
// |message_out| to empty, which means the notification should be removed. It
// also sets |additional_message_out| which appears in the notification with
// the |message_out|.
bool GetDisplayMessageForNotification(
const DisplayInfoMap& old_info,
base::string16* message_out,
base::string16* additional_message_out);
// Creates or updates the display notification.
void CreateOrUpdateNotification(const base::string16& message,
const base::string16& additional_message);
// Overridden from SystemTrayItem.
virtual views::View* CreateDefaultView(user::LoginStatus status) OVERRIDE;
virtual void DestroyDefaultView() OVERRIDE;
// Test accessors.
base::string16 GetDefaultViewMessage() const;
const views::View* default_view() const {
return reinterpret_cast<views::View*>(default_);
}
DisplayView* default_;
DisplayInfoMap display_info_;
DISALLOW_COPY_AND_ASSIGN(TrayDisplay);
};
} // namespace internal
} // namespace ash
#endif // ASH_SYSTEM_CHROMEOS_TRAY_DISPLAY_H_
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