Roman Gaiu | b5883535 | 2019-10-07 18:57:01 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2014 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_FULL_SCREEN_WINDOW_DETECTOR_H_ |
| 12 | #define MODULES_DESKTOP_CAPTURE_FULL_SCREEN_WINDOW_DETECTOR_H_ |
| 13 | |
| 14 | #include <memory> |
Byoungchan Lee | 604fd2f | 2022-01-21 00:49:39 | [diff] [blame] | 15 | |
Roman Gaiu | b5883535 | 2019-10-07 18:57:01 | [diff] [blame] | 16 | #include "api/function_view.h" |
| 17 | #include "api/ref_counted_base.h" |
| 18 | #include "api/scoped_refptr.h" |
| 19 | #include "modules/desktop_capture/desktop_capturer.h" |
| 20 | #include "modules/desktop_capture/full_screen_application_handler.h" |
Roman Gaiu | b5883535 | 2019-10-07 18:57:01 | [diff] [blame] | 21 | |
| 22 | namespace webrtc { |
| 23 | |
| 24 | // This is a way to handle switch to full-screen mode for application in some |
| 25 | // specific cases: |
| 26 | // - Chrome on MacOS creates a new window in full-screen mode to |
| 27 | // show a tab full-screen and minimizes the old window. |
| 28 | // - PowerPoint creates new windows in full-screen mode when user goes to |
| 29 | // presentation mode (Slide Show Window, Presentation Window). |
| 30 | // |
| 31 | // To continue capturing in these cases, we try to find the new full-screen |
| 32 | // window using criteria provided by application specific |
| 33 | // FullScreenApplicationHandler. |
| 34 | |
Tommi | 86ee89f | 2021-04-20 14:58:01 | [diff] [blame] | 35 | class FullScreenWindowDetector |
| 36 | : public rtc::RefCountedNonVirtual<FullScreenWindowDetector> { |
Roman Gaiu | b5883535 | 2019-10-07 18:57:01 | [diff] [blame] | 37 | public: |
| 38 | using ApplicationHandlerFactory = |
| 39 | std::function<std::unique_ptr<FullScreenApplicationHandler>( |
| 40 | DesktopCapturer::SourceId sourceId)>; |
| 41 | |
| 42 | FullScreenWindowDetector( |
| 43 | ApplicationHandlerFactory application_handler_factory); |
| 44 | |
Byoungchan Lee | 604fd2f | 2022-01-21 00:49:39 | [diff] [blame] | 45 | FullScreenWindowDetector(const FullScreenWindowDetector&) = delete; |
| 46 | FullScreenWindowDetector& operator=(const FullScreenWindowDetector&) = delete; |
| 47 | |
Roman Gaiu | b5883535 | 2019-10-07 18:57:01 | [diff] [blame] | 48 | // Returns the full-screen window in place of the original window if all the |
| 49 | // criteria provided by FullScreenApplicationHandler are met, or 0 if no such |
| 50 | // window found. |
| 51 | DesktopCapturer::SourceId FindFullScreenWindow( |
| 52 | DesktopCapturer::SourceId original_source_id); |
| 53 | |
| 54 | // The caller should call this function periodically, implementation will |
| 55 | // update internal state no often than twice per second |
| 56 | void UpdateWindowListIfNeeded( |
| 57 | DesktopCapturer::SourceId original_source_id, |
| 58 | rtc::FunctionView<bool(DesktopCapturer::SourceList*)> get_sources); |
| 59 | |
| 60 | static rtc::scoped_refptr<FullScreenWindowDetector> |
| 61 | CreateFullScreenWindowDetector(); |
| 62 | |
| 63 | protected: |
| 64 | std::unique_ptr<FullScreenApplicationHandler> app_handler_; |
| 65 | |
| 66 | private: |
| 67 | void CreateApplicationHandlerIfNeeded(DesktopCapturer::SourceId source_id); |
| 68 | |
| 69 | ApplicationHandlerFactory application_handler_factory_; |
| 70 | |
| 71 | int64_t last_update_time_ms_; |
| 72 | DesktopCapturer::SourceId previous_source_id_; |
| 73 | |
| 74 | // Save the source id when we fail to create an instance of |
| 75 | // CreateApplicationHandlerIfNeeded to avoid redundant attempt to do it again. |
| 76 | DesktopCapturer::SourceId no_handler_source_id_; |
| 77 | |
| 78 | DesktopCapturer::SourceList window_list_; |
Roman Gaiu | b5883535 | 2019-10-07 18:57:01 | [diff] [blame] | 79 | }; |
| 80 | |
| 81 | } // namespace webrtc |
| 82 | |
| 83 | #endif // MODULES_DESKTOP_CAPTURE_FULL_SCREEN_WINDOW_DETECTOR_H_ |