1 /*
2  * Copyright (c) 2022 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_BASE_GROUP_NODE_H
17 #define FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_NG_BASE_GROUP_NODE_H
18 
19 #include "core/components_ng/base/frame_node.h"
20 
21 namespace OHOS::Ace::NG {
22 
23 class ACE_EXPORT GroupNode : public FrameNode {
24     DECLARE_ACE_TYPE(GroupNode, FrameNode);
25 
26 public:
27     GroupNode(const std::string& tag, int32_t nodeId, const RefPtr<Pattern>& pattern, bool isRoot = false)
28         : FrameNode(tag, nodeId, pattern, isRoot) {}
29     ~GroupNode() override = default;
30     virtual void AddChildToGroup(const RefPtr<UINode>& children, int32_t slot = DEFAULT_NODE_SLOT) {};
31     virtual void DeleteChildFromGroup(int32_t slot = DEFAULT_NODE_SLOT) {};
32     // The function is only used for fast preview.
FastPreviewUpdateChild(int32_t slot,const RefPtr<UINode> & newChild)33     void FastPreviewUpdateChild(int32_t slot, const RefPtr<UINode>& newChild) override
34     {
35         DeleteChildFromGroup(slot);
36         AddChildToGroup(newChild, slot);
37     }
38 };
39 
40 } // namespace OHOS::Ace::NG
41 #endif // FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_NG_BASE_GROUP_NODE_H
42