1 /* 2 * Copyright 2023 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 #include <android-base/properties.h> 18 #include <gtest/gtest.h> 19 #include <gui/SurfaceComposerClient.h> 20 #include <private/android_filesystem_config.h> 21 #include <cstdint> 22 #include <future> 23 24 namespace android { 25 26 using base::HwTimeoutMultiplier; 27 using gui::DisplayInfo; 28 using gui::WindowInfo; 29 30 using WindowInfosPredicate = std::function<bool(const std::vector<WindowInfo>&)>; 31 32 class WindowInfosListenerUtils { 33 public: WindowInfosListenerUtils()34 WindowInfosListenerUtils() { mClient = sp<SurfaceComposerClient>::make(); } 35 waitForWindowInfosPredicate(const WindowInfosPredicate & predicate)36 bool waitForWindowInfosPredicate(const WindowInfosPredicate& predicate) { 37 std::promise<void> promise; 38 auto listener = sp<WindowInfosListener>::make(std::move(predicate), promise); 39 mClient->addWindowInfosListener(listener); 40 auto future = promise.get_future(); 41 bool satisfied = future.wait_for(std::chrono::seconds{5 * HwTimeoutMultiplier()}) == 42 std::future_status::ready; 43 mClient->removeWindowInfosListener(listener); 44 return satisfied; 45 } 46 findMatchingWindowInfo(const WindowInfo & targetWindowInfo,const std::vector<WindowInfo> & windowInfos)47 static const WindowInfo* findMatchingWindowInfo(const WindowInfo& targetWindowInfo, 48 const std::vector<WindowInfo>& windowInfos) { 49 for (const WindowInfo& windowInfo : windowInfos) { 50 if (windowInfo.token == targetWindowInfo.token) { 51 return &windowInfo; 52 } 53 } 54 return nullptr; 55 } 56 57 private: 58 struct WindowInfosListener : public gui::WindowInfosListener { 59 public: WindowInfosListenerWindowInfosListener60 WindowInfosListener(WindowInfosPredicate predicate, std::promise<void>& promise) 61 : mPredicate(std::move(predicate)), mPromise(promise) {} 62 onWindowInfosChangedWindowInfosListener63 void onWindowInfosChanged(const gui::WindowInfosUpdate& update) override { 64 if (mPredicate(update.windowInfos)) { 65 mPromise.set_value(); 66 } 67 } 68 69 private: 70 WindowInfosPredicate mPredicate; 71 std::promise<void>& mPromise; 72 }; 73 74 sp<SurfaceComposerClient> mClient; 75 }; 76 77 } // namespace android 78