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_CORE_COMMON_BACKEND_H 17 #define FOUNDATION_ACE_FRAMEWORKS_CORE_COMMON_BACKEND_H 18 19 #include "base/memory/ace_type.h" 20 #include "base/resource/asset_manager.h" 21 #include "base/thread/task_executor.h" 22 #include "core/common/js_message_dispatcher.h" 23 24 namespace OHOS::Ace { 25 26 enum class BackendType { SERVICE, DATA, FORM }; 27 28 class ACE_EXPORT Backend : public AceType { 29 DECLARE_ACE_TYPE(Backend, AceType); 30 31 public: 32 Backend() = default; 33 ~Backend() override = default; 34 35 enum class State { ON_CREATE, ON_DESTROY }; 36 37 static RefPtr<Backend> Create(); 38 39 virtual bool Initialize(BackendType type, const RefPtr<TaskExecutor>& taskExecutor) = 0; 40 41 virtual void LoadEngine(const char* libName, int32_t instanceId) = 0; 42 43 virtual void MethodChannel(const std::string& methodName, std::string& jsonStr) = 0; 44 45 virtual void RunPa(const std::string &url) = 0; 46 47 virtual void OnCommand(const std::string& intent, int startId) = 0; 48 49 virtual void SetAssetManager(const RefPtr<AssetManager> &assetManager) = 0; 50 51 virtual void SetJsMessageDispatcher(const RefPtr<JsMessageDispatcher> &transfer) const = 0; 52 53 virtual void TransferJsResponseData(int32_t callbackId, int32_t code, std::vector<uint8_t>&& data) const = 0; 54 55 virtual void TransferJsPluginGetError(int32_t callbackId, int32_t errorCode, std::string&& errorMessage) const = 0; 56 57 virtual void TransferJsEventData(int32_t callbackId, int32_t code, std::vector<uint8_t>&& data) const = 0; 58 59 virtual void LoadPluginJsCode(std::string&& jsCode) const = 0; 60 61 virtual void LoadPluginJsByteCode(std::vector<uint8_t>&& jsCode, std::vector<int32_t>&& jsCodeLen) const = 0; 62 63 virtual BackendType GetType() = 0; 64 65 // inform the frontend that onCreate or onDestroy 66 virtual void UpdateState(State) = 0; 67 }; 68 69 } // namespace OHOS::Ace 70 71 #endif // FOUNDATION_ACE_FRAMEWORKS_CORE_COMMON_BACKEND_H