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_SYNTAX_FOR_EACH_MODEL_H
17 #define FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_SYNTAX_FOR_EACH_MODEL_H
18 
19 #include <cstdint>
20 #include <functional>
21 #include <list>
22 #include <string>
23 #include <vector>
24 #include <memory>
25 #include <mutex>
26 
27 #include "base/utils/macros.h"
28 
29 namespace OHOS::Ace {
30 
31 struct ForEachFunc {
32     std::function<std::vector<std::string>()> idGenFunc_;
33     std::function<void(int32_t index)> itemGenFunc_;
34 };
35 
36 class ACE_FORCE_EXPORT ForEachModel {
37 public:
38     static ForEachModel* GetInstance();
39     virtual ~ForEachModel() = default;
40 
41     virtual void Pop() = 0;
42 
43     // classic / full update code path
44     virtual void Create(const std::string& compilerGenId, const ForEachFunc& ForEachFunc) = 0;
45 
46     // Only implemented by ForEachModelNG
47     virtual void Create() = 0;
48 
49     virtual std::list<std::string> GetCurrentIdList(int32_t nodeId) = 0;
50     virtual void SetNewIds(std::list<std::string>&& newIds) = 0;
51     virtual void SetRemovedElmtIds(std::list<int32_t>& removedElmtId) = 0;
52 
53     virtual void CreateNewChildStart(const std::string& id) = 0;
54     virtual void CreateNewChildFinish(const std::string& id) = 0;
55 
56     virtual void OnMove(std::function<void(int32_t, int32_t)>&& onMove) = 0;
57 };
58 } // namespace OHOS::Ace::NG
59 
60 #endif // FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_NG_SYNTAX_FOR_EACH_H
61