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// Copyright 2013 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_TRAY_TRACING_H_
#define ASH_SYSTEM_TRAY_TRACING_H_
#include "ash/ash_export.h"
#include "ash/system/tray/tray_image_item.h"
namespace views {
class View;
}
namespace ash {
class ASH_EXPORT TracingObserver {
public:
virtual ~TracingObserver() {}
// Notifies when tracing mode changes.
virtual void OnTracingModeChanged(bool value) = 0;
};
namespace internal {
// This is the item that displays when users enable performance tracing at
// chrome://slow. It alerts them that this mode is running, and provides an
// easy way to open the page to disable it.
class TrayTracing : public TrayImageItem,
public TracingObserver {
public:
explicit TrayTracing(SystemTray* system_tray);
virtual ~TrayTracing();
private:
void SetTrayIconVisible(bool visible);
// Overridden from TrayImageItem.
virtual bool GetInitialVisibility() OVERRIDE;
virtual views::View* CreateDefaultView(user::LoginStatus status) OVERRIDE;
virtual views::View* CreateDetailedView(user::LoginStatus status) OVERRIDE;
virtual void DestroyDefaultView() OVERRIDE;
virtual void DestroyDetailedView() OVERRIDE;
// Overridden from TracingObserver.
virtual void OnTracingModeChanged(bool value) OVERRIDE;
views::View* default_;
DISALLOW_COPY_AND_ASSIGN(TrayTracing);
};
} // namespace internal
} // namespace ash
#endif // ASH_SYSTEM_TRAY_TRACING_H_
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