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_NODE_CONTENT_H
17 #define FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_NG_SYNTAX_NODE_CONTENT_H
18 
19 #include <functional>
20 #include <list>
21 
22 #include "base/memory/ace_type.h"
23 #include "core/components_ng/base/ui_node.h"
24 
25 namespace OHOS::Ace::NG {
26 
27 class NodeContent : public AceType {
28     DECLARE_ACE_TYPE(NodeContent, AceType)
29 public:
30     NodeContent() = default;
31     ~NodeContent() override = default;
32 
33     void AttachToNode(UINode* node);
34     void DetachFromNode();
35 
36     void AddNode(UINode* node, int32_t position = -1);
37     void RemoveNode(UINode* node);
38 
39     void OnAttachToMainTree();
40 
41     void OnDetachFromMainTree();
42 
SetAttachToMainTreeCallback(std::function<void ()> && callback)43     void SetAttachToMainTreeCallback(std::function<void()>&& callback)
44     {
45         onAttachCallback_ = std::move(callback);
46     }
47 
SetDetachFromMainTreeCallback(std::function<void ()> && callback)48     void SetDetachFromMainTreeCallback(std::function<void()>&& callback)
49     {
50         onDetachCallback_ = std::move(callback);
51     }
52 
GetUserData()53     void* GetUserData() const
54     {
55         return userData_;
56     }
57 
SetUserData(void * userData)58     void SetUserData(void* userData)
59     {
60         userData_ = userData;
61     }
62 
GetContentSlot()63     WeakPtr<UINode> GetContentSlot()
64     {
65         return nodeSlot_;
66     }
67 
68 private:
69     WeakPtr<UINode> nodeSlot_;
70     std::list<RefPtr<UINode>> children_;
71     std::function<void()> onAttachCallback_;
72     std::function<void()> onDetachCallback_;
73     void* userData_ = nullptr;
74 
75     bool onMainTree_ = false;
76 };
77 
78 } // namespace OHOS::Ace::NG
79 #endif // FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_NG_SYNTAX_NODE_CONTENT_H
80