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_INTERFACE_IOWNER_H 17 #define META_INTERFACE_IOWNER_H 18 19 #include <meta/base/interface_macros.h> 20 #include <meta/base/meta_types.h> 21 #include <meta/base/namespace.h> 22 23 META_BEGIN_NAMESPACE() 24 25 class IProperty; 26 struct StaticMetadata; 27 28 /// Generic owner concept interface 29 class IOwner : public CORE_NS::IInterface { 30 META_INTERFACE(CORE_NS::IInterface, IOwner, "ee3ddb5d-e749-4d4b-b3ae-3463cf5c492e") 31 public: 32 }; 33 34 class IMetadataOwner : public CORE_NS::IInterface { 35 META_INTERFACE(CORE_NS::IInterface, IMetadataOwner, "66ce57ab-d234-47c0-b358-536609ac7e78") 36 public: 37 virtual void OnMetadataConstructed(const StaticMetadata&, CORE_NS::IInterface&) = 0; 38 }; 39 40 /// Property owner interface 41 class IPropertyOwner : public CORE_NS::IInterface { 42 META_INTERFACE(CORE_NS::IInterface, IPropertyOwner, "59f14ea1-972c-4d3b-81f1-3d26633fa864") 43 public: 44 /// Called directly when owned property changes without need to register handlers 45 virtual void OnPropertyChanged(const IProperty&) = 0; 46 }; 47 48 META_END_NAMESPACE() 49 50 #endif 51