1 /* 2 * Copyright (c) 2024 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 META_SRC_MODEL_OBJECT_PROVIDER_BASE_H 17 #define META_SRC_MODEL_OBJECT_PROVIDER_BASE_H 18 19 #include <meta/base/interface_macros.h> 20 #include <meta/base/namespace.h> 21 #include <meta/ext/implementation_macros.h> 22 #include <meta/interface/model/intf_object_provider.h> 23 24 #include "../object.h" 25 26 META_BEGIN_NAMESPACE() 27 28 META_REGISTER_CLASS(ObjectProviderBase, "13656d27-e228-4fd7-a4ce-5bb051cdaafc", ObjectCategory::NO_CATEGORY) 29 30 class ObjectProviderBase : public IntroduceInterfaces<MetaObject, IModelObjectProvider> { 31 META_OBJECT(ObjectProviderBase, ClassId::ObjectProviderBase, IntroduceInterfaces) 32 public: 33 ~ObjectProviderBase() override; 34 META_NO_COPY_MOVE(ObjectProviderBase) 35 36 ObjectProviderBase() = default; 37 38 IObject::Ptr CreateObject(const DataModelIndex& index) override; 39 bool DisposeObject(const META_NS::IObject::Ptr& item) override; 40 size_t GetObjectCount(const DataModelIndex& index) const override; 41 42 META_BEGIN_STATIC_DATA() 43 META_STATIC_EVENT_DATA(IObjectProvider, IOnDataAdded, OnDataAdded) 44 META_STATIC_EVENT_DATA(IObjectProvider, IOnDataRemoved, OnDataRemoved) 45 META_STATIC_EVENT_DATA(IObjectProvider, IOnDataMoved, OnDataMoved) 46 META_STATIC_PROPERTY_DATA(IObjectProvider, size_t, CacheHint, 10) 47 META_END_STATIC_DATA() 48 META_IMPLEMENT_EVENT(IOnDataAdded, OnDataAdded) 49 META_IMPLEMENT_EVENT(IOnDataRemoved, OnDataRemoved) 50 META_IMPLEMENT_EVENT(IOnDataMoved, OnDataMoved) 51 META_IMPLEMENT_PROPERTY(size_t, CacheHint) 52 53 bool SetDataModel(const IDataModel::Ptr& model) override; 54 IDataModel::Ptr GetDataModel() const override; 55 56 protected: 57 virtual IObject::Ptr Construct(const IMetadata::Ptr& data); 58 59 private: 60 void BindProperties(const IObject::Ptr& object, const IMetadata::Ptr& data) const; 61 62 private: 63 IDataModel::Ptr model_; 64 BASE_NS::vector<IObject::Ptr> recyclebin_; 65 }; 66 67 META_END_NAMESPACE() 68 69 #endif 70