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// Copyright (c) 2015 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 CONTENT_BROWSER_MEDIA_CAPTURE_WINDOW_ACTIVITY_TRACKER_AURA_H_
#define CONTENT_BROWSER_MEDIA_CAPTURE_WINDOW_ACTIVITY_TRACKER_AURA_H_
#include "base/macros.h"
#include "base/memory/ref_counted.h"
#include "base/memory/weak_ptr.h"
#include "content/browser/media/capture/window_activity_tracker.h"
#include "content/common/content_export.h"
#include "ui/aura/window.h"
#include "ui/events/event_handler.h"
namespace content {
// Tracks UI events and makes a decision on whether the user has been
// actively interacting with a specified window.
class CONTENT_EXPORT WindowActivityTrackerAura : public WindowActivityTracker,
public ui::EventHandler,
public aura::WindowObserver {
public:
explicit WindowActivityTrackerAura(aura::Window* window);
~WindowActivityTrackerAura() final;
// WindowActivityTracker overrides.
bool IsUiInteractionActive() const final;
void RegisterMouseInteractionObserver(const base::Closure& observer) final;
void Reset() final;
base::WeakPtr<WindowActivityTracker> GetWeakPtr() final;
private:
// ui::EventHandler overrides.
void OnEvent(ui::Event* event) final;
// aura::WindowObserver overrides.
void OnWindowDestroying(aura::Window* window) final;
aura::Window* window_;
// The last time a UI event was detected.
base::TimeTicks last_time_ui_event_detected_;
// Runs on mouse movement or mouse cursor changes.
base::Closure mouse_interaction_observer_;
// The number of UI events detected so far. In case of continuous events
// such as mouse movement, a single continuous movement is treated
// as one event.
int ui_events_count_;
base::WeakPtrFactory<WindowActivityTrackerAura> weak_factory_;
DISALLOW_COPY_AND_ASSIGN(WindowActivityTrackerAura);
};
} // namespace content
#endif // CONTENT_BROWSER_MEDIA_CAPTURE_WINDOW_ACTIVITY_TRACKER_AURA_H_
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