1 /* 2 * Copyright (c) 2021 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 16 #ifndef FOUNDATION_ACE_FRAMEWORKS_BASE_RESOURCE_SHARED_IMAGE_MANAGER_H 17 #define FOUNDATION_ACE_FRAMEWORKS_BASE_RESOURCE_SHARED_IMAGE_MANAGER_H 18 19 #include <mutex> 20 #include <set> 21 #include <unordered_map> 22 #include <vector> 23 24 #include "base/memory/ace_type.h" 25 #include "base/thread/cancelable_callback.h" 26 #include "base/thread/task_executor.h" 27 28 namespace OHOS::Ace { 29 30 using SharedImage = std::vector<uint8_t>; 31 using SharedImageMap = std::unordered_map<std::string, SharedImage>; 32 33 class ImageProviderLoader; 34 using ProviderMapToReload = std::unordered_map<std::string, std::set<WeakPtr<ImageProviderLoader>>>; 35 36 class SharedImageManager : public AceType { 37 DECLARE_ACE_TYPE(SharedImageManager, AceType); 38 39 public: SharedImageManager(const RefPtr<TaskExecutor> & taskExecutor)40 explicit SharedImageManager(const RefPtr<TaskExecutor>& taskExecutor) : taskExecutor_(taskExecutor) {} 41 ~SharedImageManager() override = default; 42 void AddSharedImage(const std::string& name, SharedImage&& sharedImage); 43 void AddPictureNamesToReloadMap(std::string&& name); 44 bool AddProviderToReloadMap(const std::string& name, const WeakPtr<ImageProviderLoader>& providerWp); 45 bool FindImageInSharedImageMap(const std::string& name, const WeakPtr<ImageProviderLoader>& providerWp); 46 GetSharedImageMap()47 const SharedImageMap& GetSharedImageMap() const 48 { 49 return sharedImageMap_; 50 } 51 Remove(const std::string & name)52 bool Remove(const std::string& name) 53 { 54 int res = static_cast<int>(sharedImageMap_.erase(name)); 55 return (res != 0); 56 } 57 IsResourceToReload(const std::string & name)58 bool IsResourceToReload(const std::string& name) 59 { 60 std::lock_guard<std::mutex> lockProviderMap(providerMapMutex_); 61 return providerMapToReload_.find(name) != providerMapToReload_.end(); 62 } 63 64 private: 65 void PostDelayedTaskToClearImageData(const std::string& name, size_t dataSize); 66 std::function<void()> GenerateClearImageDataCallback(const std::string& name, size_t dataSize); 67 68 std::mutex sharedImageMapMutex_; 69 std::mutex providerMapMutex_; 70 std::mutex cancelableCallbackMapMutex_; 71 SharedImageMap sharedImageMap_; 72 ProviderMapToReload providerMapToReload_; 73 std::function<void()> clearImageDataCallback_; 74 std::unordered_map<std::string, CancelableCallback<void()>> cancelableCallbackMap_; 75 RefPtr<TaskExecutor> taskExecutor_; 76 }; 77 78 class ImageProviderLoader : public virtual AceType { 79 DECLARE_ACE_TYPE(ImageProviderLoader, AceType); 80 81 public: 82 ~ImageProviderLoader() override = default; 83 virtual void UpdateData(const std::string& uri, const std::vector<uint8_t>& memData) = 0; 84 85 protected: 86 ImageProviderLoader() = default; 87 88 ACE_DISALLOW_COPY_AND_MOVE(ImageProviderLoader); 89 }; 90 91 } // namespace OHOS::Ace 92 93 #endif // FOUNDATION_ACE_FRAMEWORKS_BASE_RESOURCE_SHARED_IMAGE_MANAGER_H 94