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 "core/common/js_message_dispatcher.h" 22 23 namespace OHOS::Ace { 24 25 enum class BackendType { SERVICE, DATA, FORM }; 26 27 enum class SrcLanguage { ETS, JS }; 28 29 class ACE_EXPORT Backend : public AceType { 30 DECLARE_ACE_TYPE(Backend, AceType); 31 32 public: 33 Backend() = default; 34 ~Backend() override = default; 35 36 enum class State { ON_CREATE, ON_DESTROY }; 37 38 static RefPtr<Backend> Create(); 39 40 virtual bool Initialize(BackendType type, SrcLanguage language) = 0; 41 42 virtual void LoadEngine(const char* libName, int32_t instanceId) = 0; 43 44 virtual void SetAssetManager(const RefPtr<AssetManager> &assetManager) = 0; 45 46 // inform the frontend that onCreate or onDestroy 47 virtual void UpdateState(State) = 0; 48 }; 49 50 } // namespace OHOS::Ace 51 52 #endif // FOUNDATION_ACE_FRAMEWORKS_CORE_COMMON_BACKEND_H