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/*
* Copyright 2018 The WebRTC project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#ifndef MODULES_DESKTOP_CAPTURE_TAB_CAPTURER_H_
#define MODULES_DESKTOP_CAPTURE_TAB_CAPTURER_H_
#include <memory>
#include <string>
#include "modules/desktop_capture/desktop_capture_options.h"
#include "modules/desktop_capture/desktop_capturer.h"
#include "mozilla/dom/ImageBitmap.h"
#include "mozilla/MozPromise.h"
#include "mozilla/TaskQueue.h"
#include "nsDeque.h"
#include "nsThreadUtils.h"
namespace mozilla {
class CaptureFrameRequest;
class TabCapturedHandler;
class TabCapturerWebrtc : public webrtc::DesktopCapturer {
private:
~TabCapturerWebrtc();
public:
friend class CaptureFrameRequest;
friend class TabCapturedHandler;
explicit TabCapturerWebrtc(const webrtc::DesktopCaptureOptions& options);
static std::unique_ptr<webrtc::DesktopCapturer> CreateRawWindowCapturer(
const webrtc::DesktopCaptureOptions& options);
TabCapturerWebrtc(const TabCapturerWebrtc&) = delete;
TabCapturerWebrtc& operator=(const TabCapturerWebrtc&) = delete;
// DesktopCapturer interface.
void Start(Callback* callback) override;
void CaptureFrame() override;
bool GetSourceList(SourceList* sources) override;
bool SelectSource(SourceId id) override;
bool FocusOnSelectedSource() override;
bool IsOccluded(const webrtc::DesktopVector& pos) override;
private:
// Capture code
using CapturePromise = MozPromise<RefPtr<dom::ImageBitmap>, nsresult, true>;
RefPtr<CapturePromise> CaptureFrameNow();
// Helper that checks for overrun requests. Returns true if aRequest had not
// been dropped.
bool CompleteRequest(CaptureFrameRequest* aRequest);
const RefPtr<TaskQueue> mMainThreadWorker;
webrtc::DesktopCapturer::Callback* mCallback = nullptr;
uint64_t mBrowserId = 0;
// mMainThreadWorker only
nsRefPtrDeque<CaptureFrameRequest> mRequests;
};
} // namespace mozilla
#endif // MODULES_DESKTOP_CAPTURE_TAB_CAPTURER_H_
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