1 /* 2 * Copyright 2018 The WebRTC project authors. All Rights Reserved. 3 * 4 * Use of this source code is governed by a BSD-style license 5 * that can be found in the LICENSE file in the root of the source 6 * tree. An additional intellectual property rights grant can be found 7 * in the file PATENTS. All contributing project authors may 8 * be found in the AUTHORS file in the root of the source tree. 9 */ 10 11 #ifndef MODULES_DESKTOP_CAPTURE_LINUX_X11_WINDOW_CAPTURER_X11_H_ 12 #define MODULES_DESKTOP_CAPTURE_LINUX_X11_WINDOW_CAPTURER_X11_H_ 13 14 #include <X11/X.h> 15 #include <X11/Xlib.h> 16 17 #include <memory> 18 #include <string> 19 20 #include "api/scoped_refptr.h" 21 #include "modules/desktop_capture/desktop_capture_options.h" 22 #include "modules/desktop_capture/desktop_capturer.h" 23 #include "modules/desktop_capture/desktop_geometry.h" 24 #include "modules/desktop_capture/linux/x11/shared_x_display.h" 25 #include "modules/desktop_capture/linux/x11/window_finder_x11.h" 26 #include "modules/desktop_capture/linux/x11/x_atom_cache.h" 27 #include "modules/desktop_capture/linux/x11/x_server_pixel_buffer.h" 28 29 namespace webrtc { 30 31 class WindowCapturerX11 : public DesktopCapturer, 32 public SharedXDisplay::XEventHandler { 33 public: 34 explicit WindowCapturerX11(const DesktopCaptureOptions& options); 35 ~WindowCapturerX11() override; 36 37 WindowCapturerX11(const WindowCapturerX11&) = delete; 38 WindowCapturerX11& operator=(const WindowCapturerX11&) = delete; 39 40 static std::unique_ptr<DesktopCapturer> CreateRawWindowCapturer( 41 const DesktopCaptureOptions& options); 42 43 // DesktopCapturer interface. 44 void Start(Callback* callback) override; 45 void CaptureFrame() override; 46 bool GetSourceList(SourceList* sources) override; 47 bool SelectSource(SourceId id) override; 48 bool FocusOnSelectedSource() override; 49 bool IsOccluded(const DesktopVector& pos) override; 50 51 // SharedXDisplay::XEventHandler interface. 52 bool HandleXEvent(const XEvent& event) override; 53 54 private: display()55 Display* display() { return x_display_->display(); } 56 57 // Returns window title for the specified X `window`. 58 bool GetWindowTitle(::Window window, std::string* title); 59 60 Callback* callback_ = nullptr; 61 62 rtc::scoped_refptr<SharedXDisplay> x_display_; 63 64 bool has_composite_extension_ = false; 65 66 ::Window selected_window_ = 0; 67 XServerPixelBuffer x_server_pixel_buffer_; 68 XAtomCache atom_cache_; 69 WindowFinderX11 window_finder_; 70 }; 71 72 } // namespace webrtc 73 74 #endif // MODULES_DESKTOP_CAPTURE_LINUX_X11_WINDOW_CAPTURER_X11_H_ 75