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 FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_NG_SYNTAX_FOR_EACH_BASE_NODE_H
17 #define FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_NG_SYNTAX_FOR_EACH_BASE_NODE_H
18 
19 #include "core/components_ng/base/ui_node.h"
20 
21 namespace OHOS::Ace::NG {
22 class ACE_EXPORT ForEachBaseNode : public UINode {
23     DECLARE_ACE_TYPE(ForEachBaseNode, UINode);
24 
25 public:
26     ForEachBaseNode(const std::string& tag, int32_t nodeId, bool isRoot = false) : UINode(tag, nodeId, isRoot) {}
27     virtual void MoveData(int32_t from, int32_t to) = 0;
28     virtual RefPtr<FrameNode> GetFrameNode(int32_t index) = 0;
RecycleItems(int32_t from,int32_t to)29     virtual void RecycleItems(int32_t from, int32_t to) {}
FireOnMove(int32_t from,int32_t to)30     virtual void FireOnMove(int32_t from, int32_t to)
31     {
32         if (onMoveEvent_) {
33             onMoveEvent_(from, to);
34         }
35     }
36 
37 protected:
38     std::function<void(int32_t, int32_t)> onMoveEvent_;
39 };
40 } // namespace OHOS::Ace::NG
41 
42 #endif // FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_NG_SYNTAX_FOR_EACH_BASE_NODE_H
43