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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 UI_VIEWS_WIDGET_NATIVE_WIDGET_AURA_WINDOW_OBSERVER_H_
#define UI_VIEWS_WIDGET_NATIVE_WIDGET_AURA_WINDOW_OBSERVER_H_
#include "base/compiler_specific.h"
#include "ui/aura/client/activation_change_observer.h"
#include "ui/aura/window_observer.h"
#include "ui/gfx/native_widget_types.h"
#include "ui/views/widget/native_widget_private.h"
namespace views {
// A helper class shared between NativeWidgetAura implementations. Used when
// SetInactiveRenderingDisabled() is invoked to track when active status
// changes in such a way that we should enable inactive rendering.
class NativeWidgetAuraWindowObserver
: public aura::WindowObserver,
public aura::client::ActivationChangeObserver {
public:
explicit NativeWidgetAuraWindowObserver(
gfx::NativeView native_view,
internal::NativeWidgetDelegate* delegate);
virtual ~NativeWidgetAuraWindowObserver();
// Overridden from aura::client::ActivationChangeObserver:
virtual void OnWindowActivated(aura::Window* gained_active,
aura::Window* lost_active) OVERRIDE;
// Overridden from aura::WindowObserver:
virtual void OnWindowRemovingFromRootWindow(aura::Window* window) OVERRIDE;
private:
void CleanUpObservers();
gfx::NativeView native_view_;
internal::NativeWidgetDelegate* delegate_;
DISALLOW_COPY_AND_ASSIGN(NativeWidgetAuraWindowObserver);
};
} // namespace views
#endif // UI_VIEWS_WIDGET_NATIVE_WIDGET_AURA_WINDOW_OBSERVER_H_
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