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/*
* Copyright (c) 2013 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_DESKTOP_AND_CURSOR_COMPOSER_H_
#define MODULES_DESKTOP_CAPTURE_DESKTOP_AND_CURSOR_COMPOSER_H_
#include <memory>
#if defined(WEBRTC_USE_GIO)
#include "modules/desktop_capture/desktop_capture_metadata.h"
#endif // defined(WEBRTC_USE_GIO)
#include "modules/desktop_capture/desktop_capture_options.h"
#include "modules/desktop_capture/desktop_capture_types.h"
#include "modules/desktop_capture/desktop_capturer.h"
#include "modules/desktop_capture/desktop_frame.h"
#include "modules/desktop_capture/desktop_geometry.h"
#include "modules/desktop_capture/mouse_cursor.h"
#include "modules/desktop_capture/mouse_cursor_monitor.h"
#include "modules/desktop_capture/shared_memory.h"
#include "rtc_base/system/rtc_export.h"
namespace webrtc {
// A wrapper for DesktopCapturer that also captures mouse using specified
// MouseCursorMonitor and renders it on the generated streams.
class RTC_EXPORT DesktopAndCursorComposer
: public DesktopCapturer,
public DesktopCapturer::Callback,
public MouseCursorMonitor::Callback {
public:
// Creates a new composer that captures mouse cursor using
// MouseCursorMonitor::Create(options) and renders it into the frames
// generated by `desktop_capturer`.
DesktopAndCursorComposer(std::unique_ptr<DesktopCapturer> desktop_capturer,
const DesktopCaptureOptions& options);
~DesktopAndCursorComposer() override;
DesktopAndCursorComposer(const DesktopAndCursorComposer&) = delete;
DesktopAndCursorComposer& operator=(const DesktopAndCursorComposer&) = delete;
// Creates a new composer that relies on an external source for cursor shape
// and position information via the MouseCursorMonitor::Callback interface.
static std::unique_ptr<DesktopAndCursorComposer>
CreateWithoutMouseCursorMonitor(
std::unique_ptr<DesktopCapturer> desktop_capturer);
// DesktopCapturer interface.
void Start(DesktopCapturer::Callback* callback) override;
void SetSharedMemoryFactory(
std::unique_ptr<SharedMemoryFactory> shared_memory_factory) override;
void CaptureFrame() override;
void SetExcludedWindow(WindowId window) override;
bool GetSourceList(SourceList* sources) override;
bool SelectSource(SourceId id) override;
bool FocusOnSelectedSource() override;
bool IsOccluded(const DesktopVector& pos) override;
void SetMaxFrameRate(uint32_t max_frame_rate) override;
#if defined(WEBRTC_USE_GIO)
DesktopCaptureMetadata GetMetadata() override;
#endif // defined(WEBRTC_USE_GIO)
// MouseCursorMonitor::Callback interface.
void OnMouseCursor(MouseCursor* cursor) override;
void OnMouseCursorPosition(const DesktopVector& position) override;
private:
// Allows test cases to use a fake MouseCursorMonitor implementation.
friend class DesktopAndCursorComposerTest;
// Constructor to delegate both deprecated and new constructors and allows
// test cases to use a fake MouseCursorMonitor implementation.
DesktopAndCursorComposer(DesktopCapturer* desktop_capturer,
MouseCursorMonitor* mouse_monitor);
// DesktopCapturer::Callback interface.
void OnFrameCaptureStart() override;
void OnCaptureResult(DesktopCapturer::Result result,
std::unique_ptr<DesktopFrame> frame) override;
const std::unique_ptr<DesktopCapturer> desktop_capturer_;
const std::unique_ptr<MouseCursorMonitor> mouse_monitor_;
DesktopCapturer::Callback* callback_;
std::unique_ptr<MouseCursor> cursor_;
DesktopVector cursor_position_;
DesktopRect previous_cursor_rect_;
bool cursor_changed_ = false;
};
} // namespace webrtc
#endif // MODULES_DESKTOP_CAPTURE_DESKTOP_AND_CURSOR_COMPOSER_H_
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