1 /* 2 * Copyright (c) 2025 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 MYAPPLICATION_ARKUIBASENODE_H 17 #define MYAPPLICATION_ARKUIBASENODE_H 18 19 #include <list> 20 #include <memory> 21 #include <hilog/log.h> 22 23 #include "NativeModule.h" 24 25 namespace NativeModule { 26 27 class ArkUIBaseNode { 28 public: ArkUIBaseNode(ArkUI_NodeHandle handle)29 explicit ArkUIBaseNode(ArkUI_NodeHandle handle) 30 : handle_(handle), nativeModule_(NativeModuleInstance::GetInstance()->GetNativeNodeAPI()) {} 31 ~ArkUIBaseNode()32 virtual ~ArkUIBaseNode() 33 { 34 // 封装析构函数，实现子节点移除功能。 35 if (!children_.empty()) { 36 for (const auto& child : children_) { 37 nativeModule_->removeChild(handle_, child->GetHandle()); 38 } 39 children_.clear(); 40 } 41 // 封装析构函数，统一回收节点资源。 42 nativeModule_->disposeNode(handle_); 43 } 44 AddChild(const std::shared_ptr<ArkUIBaseNode> & child)45 void AddChild(const std::shared_ptr<ArkUIBaseNode> &child) 46 { 47 children_.emplace_back(child); 48 OnAddChild(child); 49 } 50 RemoveChild(const std::shared_ptr<ArkUIBaseNode> & child)51 void RemoveChild(const std::shared_ptr<ArkUIBaseNode> &child) 52 { 53 children_.remove(child); 54 OnRemoveChild(child); 55 } 56 InsertChild(const std::shared_ptr<ArkUIBaseNode> & child,int32_t index)57 void InsertChild(const std::shared_ptr<ArkUIBaseNode> &child, int32_t index) 58 { 59 if (index >= children_.size()) { 60 AddChild(child); 61 } else { 62 auto iter = children_.begin(); 63 std::advance(iter, index); 64 children_.insert(iter, child); 65 OnInsertChild(child, index); 66 } 67 } 68 GetHandle()69 ArkUI_NodeHandle GetHandle() const 70 { 71 return handle_; 72 } 73 74 protected: 75 // 针对父容器子类需要重载下面的函数，实现组件挂载和卸载。 76 virtual void OnAddChild(const std::shared_ptr<ArkUIBaseNode> &child) = 0; 77 virtual void OnRemoveChild(const std::shared_ptr<ArkUIBaseNode> &child) = 0; 78 virtual void OnInsertChild(const std::shared_ptr<ArkUIBaseNode> &child, int32_t index) = 0; 79 80 ArkUI_NativeNodeAPI_1 *nativeModule_ = nullptr; 81 ArkUI_NodeHandle handle_; 82 private: 83 std::list<std::shared_ptr<ArkUIBaseNode>> children_; 84 }; 85 } // namespace NativeModule 86 87 #endif // MYAPPLICATION_ARKUIBASENODE_H