| /* |
| * Copyright (c) 2017 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_WINDOW_FINDER_H_ |
| #define MODULES_DESKTOP_CAPTURE_WINDOW_FINDER_H_ |
| |
| #include <memory> |
| |
| #include "modules/desktop_capture/desktop_capture_types.h" |
| #include "modules/desktop_capture/desktop_geometry.h" |
| |
| namespace webrtc { |
| |
| #if defined(USE_X11) |
| class XAtomCache; |
| #endif |
| |
| // An interface to return the id of the visible window under a certain point. |
| class WindowFinder { |
| public: |
| WindowFinder() = default; |
| virtual ~WindowFinder() = default; |
| |
| // Returns the id of the visible window under |point|. This function returns |
| // kNullWindowId if no window is under |point| and the platform does not have |
| // "root window" concept, i.e. the visible area under |point| is the desktop. |
| // |point| is always in system coordinate, i.e. the primary monitor always |
| // starts from (0, 0). |
| virtual WindowId GetWindowUnderPoint(DesktopVector point) = 0; |
| |
| struct Options { |
| #if defined(USE_X11) |
| XAtomCache* cache = nullptr; |
| #endif |
| }; |
| |
| // Creates a platform-independent WindowFinder implementation. This function |
| // returns nullptr if |options| does not contain enough information or |
| // WindowFinder does not support current platform. |
| static std::unique_ptr<WindowFinder> Create(const Options& options); |
| }; |
| |
| } // namespace webrtc |
| |
| #endif // MODULES_DESKTOP_CAPTURE_WINDOW_FINDER_H_ |