1 /* 2 * Copyright 2021 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #pragma once 18 19 #include <android/gui/BnWindowInfosListener.h> 20 #include <android/gui/IWindowInfosReportedListener.h> 21 #include <binder/IBinder.h> 22 #include <gui/ISurfaceComposer.h> 23 #include <gui/SpHash.h> 24 #include <gui/WindowInfosListener.h> 25 #include <unordered_set> 26 27 namespace android { 28 class ISurfaceComposer; 29 30 class WindowInfosListenerReporter : public gui::BnWindowInfosListener { 31 public: 32 static sp<WindowInfosListenerReporter> getInstance(); 33 binder::Status onWindowInfosChanged(const std::vector<gui::WindowInfo>&, 34 const std::vector<gui::DisplayInfo>&, 35 const sp<gui::IWindowInfosReportedListener>&) override; 36 37 status_t addWindowInfosListener( 38 const sp<gui::WindowInfosListener>& windowInfosListener, const sp<ISurfaceComposer>&, 39 std::pair<std::vector<gui::WindowInfo>, std::vector<gui::DisplayInfo>>* outInitialInfo); 40 status_t removeWindowInfosListener(const sp<gui::WindowInfosListener>& windowInfosListener, 41 const sp<ISurfaceComposer>& surfaceComposer); 42 void reconnect(const sp<ISurfaceComposer>&); 43 44 private: 45 std::mutex mListenersMutex; 46 std::unordered_set<sp<gui::WindowInfosListener>, SpHash<gui::WindowInfosListener>> 47 mWindowInfosListeners GUARDED_BY(mListenersMutex); 48 49 std::vector<gui::WindowInfo> mLastWindowInfos GUARDED_BY(mListenersMutex); 50 std::vector<gui::DisplayInfo> mLastDisplayInfos GUARDED_BY(mListenersMutex); 51 }; 52 } // namespace android 53