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// Copyright 2018 The Chromium Authors
// 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_AURA_WINDOW_VIDEO_CAPTURE_DEVICE_H_
#define CONTENT_BROWSER_MEDIA_CAPTURE_AURA_WINDOW_VIDEO_CAPTURE_DEVICE_H_
#include <memory>
#include "base/memory/weak_ptr.h"
#include "build/build_config.h"
#include "content/browser/media/capture/frame_sink_video_capture_device.h"
#include "content/common/content_export.h"
#include "content/public/browser/browser_thread.h"
#include "mojo/public/cpp/bindings/pending_receiver.h"
namespace aura {
class Window;
} // namespace aura
namespace content {
struct DesktopMediaID;
// Captures the displayed contents of an aura::Window, producing a stream of
// video frames.
class CONTENT_EXPORT AuraWindowVideoCaptureDevice final
: public FrameSinkVideoCaptureDevice {
public:
explicit AuraWindowVideoCaptureDevice(const DesktopMediaID& source_id);
AuraWindowVideoCaptureDevice(const AuraWindowVideoCaptureDevice&) = delete;
AuraWindowVideoCaptureDevice& operator=(const AuraWindowVideoCaptureDevice&) =
delete;
~AuraWindowVideoCaptureDevice() final;
private:
// Monitors the target Window and notifies the base class if it is destroyed.
class WindowTracker;
// A helper that runs on the UI thread to monitor the target aura::Window, and
// post a notification if it is destroyed.
std::unique_ptr<WindowTracker, BrowserThread::DeleteOnUIThread> tracker_;
base::WeakPtrFactory<AuraWindowVideoCaptureDevice> weak_ptr_factory_{this};
};
} // namespace content
#endif // CONTENT_BROWSER_MEDIA_CAPTURE_AURA_WINDOW_VIDEO_CAPTURE_DEVICE_H_
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