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 SCENE_INTERFACE_COMPONENT_UTIL_H 17 #define SCENE_INTERFACE_COMPONENT_UTIL_H 18 19 #include <scene/interface/intf_node.h> 20 21 #include <meta/interface/intf_attach.h> 22 SCENE_BEGIN_NAMESPACE()23SCENE_BEGIN_NAMESPACE() 24 25 template<typename Interface> 26 typename Interface::Ptr GetComponent(const INode::Ptr& node) 27 { 28 auto obj = interface_cast<META_NS::IAttach>(node); 29 if (obj) { 30 auto att = obj->GetAttachments<Interface>(); 31 if (!att.empty()) { 32 return att.front(); 33 } 34 } 35 return nullptr; 36 } 37 38 SCENE_END_NAMESPACE() 39 40 #endif