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 #ifndef MYAPPLICATION_ARKUIBASENODE_H 16 #define MYAPPLICATION_ARKUIBASENODE_H 17 18 #include <arkui/native_type.h> 19 #include <list> 20 #include <memory> 21 22 #include "NativeModule.h" 23 24 namespace NativeModule { 25 26 class ArkUIBaseNode { 27 public: ArkUIBaseNode(ArkUI_NodeHandle handle)28 explicit ArkUIBaseNode(ArkUI_NodeHandle handle) 29 : handle_(handle), nativeModule_(NativeModuleInstance::GetInstance()->GetNativeNodeAPI()) {} 30 ~ArkUIBaseNode()31 virtual ~ArkUIBaseNode() { 32 // 封装析构函数，实现子节点移除功能。 33 if (!children_.empty()) { 34 for (const auto& child : children_) { 35 nativeModule_->removeChild(handle_, child->GetHandle()); 36 } 37 children_.clear(); 38 } 39 // 封装析构函数，统一回收节点资源。 40 nativeModule_->disposeNode(handle_); 41 } 42 AddChild(const std::shared_ptr<ArkUIBaseNode> & child)43 void AddChild(const std::shared_ptr<ArkUIBaseNode> &child) { 44 children_.emplace_back(child); 45 OnAddChild(child); 46 } 47 RemoveChild(const std::shared_ptr<ArkUIBaseNode> & child)48 void RemoveChild(const std::shared_ptr<ArkUIBaseNode> &child) { 49 children_.remove(child); 50 OnRemoveChild(child); 51 } 52 InsertChild(const std::shared_ptr<ArkUIBaseNode> & child,int32_t index)53 void InsertChild(const std::shared_ptr<ArkUIBaseNode> &child, int32_t index) { 54 if (index >= children_.size()) { 55 AddChild(child); 56 } else { 57 auto iter = children_.begin(); 58 std::advance(iter, index); 59 children_.insert(iter, child); 60 OnInsertChild(child, index); 61 } 62 } 63 GetHandle()64 ArkUI_NodeHandle GetHandle() const { return handle_; } 65 66 protected: 67 // 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。 OnAddChild(const std::shared_ptr<ArkUIBaseNode> & child)68 virtual void OnAddChild(const std::shared_ptr<ArkUIBaseNode> &child) {} OnRemoveChild(const std::shared_ptr<ArkUIBaseNode> & child)69 virtual void OnRemoveChild(const std::shared_ptr<ArkUIBaseNode> &child) {} OnInsertChild(const std::shared_ptr<ArkUIBaseNode> & child,int32_t index)70 virtual void OnInsertChild(const std::shared_ptr<ArkUIBaseNode> &child, int32_t index) {} 71 72 ArkUI_NodeHandle handle_; 73 ArkUI_NativeNodeAPI_1 *nativeModule_ = nullptr; 74 75 private: 76 std::list<std::shared_ptr<ArkUIBaseNode>> children_; 77 }; 78 } // namespace NativeModule 79 80 #endif // MYAPPLICATION_ARKUIBASENODE_H