modules/desktop_capture/linux/mouse_cursor_monitor_x11.h

/*
 *  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_LINUX_MOUSE_CURSOR_MONITOR_X11_H_
#define MODULES_DESKTOP_CAPTURE_LINUX_MOUSE_CURSOR_MONITOR_X11_H_

#include <X11/X.h>

#include <memory>

#include "api/scoped_refptr.h"
#include "modules/desktop_capture/desktop_capture_options.h"
#include "modules/desktop_capture/desktop_capture_types.h"
#include "modules/desktop_capture/linux/shared_x_display.h"
#include "modules/desktop_capture/mouse_cursor.h"
#include "modules/desktop_capture/mouse_cursor_monitor.h"

namespace webrtc {

class MouseCursorMonitorX11 : public MouseCursorMonitor,
                              public SharedXDisplay::XEventHandler {
 public:
  MouseCursorMonitorX11(const DesktopCaptureOptions& options, Window window);
  ~MouseCursorMonitorX11() override;

  static MouseCursorMonitor* CreateForWindow(
      const DesktopCaptureOptions& options,
      WindowId window);
  static MouseCursorMonitor* CreateForScreen(
      const DesktopCaptureOptions& options,
      ScreenId screen);
  static std::unique_ptr<MouseCursorMonitor> Create(
      const DesktopCaptureOptions& options);

  void Init(Callback* callback, Mode mode) override;
  void Capture() override;

 private:
  // SharedXDisplay::XEventHandler interface.
  bool HandleXEvent(const XEvent& event) override;

  Display* display() { return x_display_->display(); }

  // Captures current cursor shape and stores it in `cursor_shape_`.
  void CaptureCursor();

  rtc::scoped_refptr<SharedXDisplay> x_display_;
  Callback* callback_;
  Mode mode_;
  Window window_;

  bool have_xfixes_;
  int xfixes_event_base_;
  int xfixes_error_base_;

  std::unique_ptr<MouseCursor> cursor_shape_;
};

}  // namespace webrtc

#endif  // MODULES_DESKTOP_CAPTURE_LINUX_MOUSE_CURSOR_MONITOR_X11_H_