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/ISurfaceComposer.h> 21 #include <android/gui/IWindowInfosPublisher.h> 22 #include <binder/IBinder.h> 23 #include <gui/SpHash.h> 24 #include <gui/WindowInfosListener.h> 25 #include <gui/WindowInfosUpdate.h> 26 #include <unordered_set> 27 28 namespace android { 29 30 class WindowInfosListenerReporter : public gui::BnWindowInfosListener { 31 public: 32 static sp<WindowInfosListenerReporter> getInstance(); 33 binder::Status onWindowInfosChanged(const gui::WindowInfosUpdate& update) override; 34 status_t addWindowInfosListener( 35 const sp<gui::WindowInfosListener>& windowInfosListener, 36 const sp<gui::ISurfaceComposer>&, 37 std::pair<std::vector<gui::WindowInfo>, std::vector<gui::DisplayInfo>>* outInitialInfo); 38 status_t removeWindowInfosListener(const sp<gui::WindowInfosListener>& windowInfosListener, 39 const sp<gui::ISurfaceComposer>& surfaceComposer); 40 void reconnect(const sp<gui::ISurfaceComposer>&); 41 42 private: 43 std::mutex mListenersMutex; 44 std::unordered_set<sp<gui::WindowInfosListener>, gui::SpHash<gui::WindowInfosListener>> 45 mWindowInfosListeners GUARDED_BY(mListenersMutex); 46 47 std::vector<gui::WindowInfo> mLastWindowInfos GUARDED_BY(mListenersMutex); 48 std::vector<gui::DisplayInfo> mLastDisplayInfos GUARDED_BY(mListenersMutex); 49 50 sp<gui::IWindowInfosPublisher> mWindowInfosPublisher; 51 int64_t mListenerId; 52 }; 53 } // namespace android 54