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_PATTERN_GRID_GRID_ITEM_EVENT_HUB_H
17 #define FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_NG_PATTERN_GRID_GRID_ITEM_EVENT_HUB_H
18 
19 #include <functional>
20 
21 #include "base/memory/ace_type.h"
22 #include "core/components_ng/event/event_hub.h"
23 
24 namespace OHOS::Ace::NG {
25 
26 using SelectFunc = std::function<void(bool)>;
27 
28 class GridItemEventHub : public EventHub {
29     DECLARE_ACE_TYPE(GridItemEventHub, EventHub)
30 
31 public:
32     GridItemEventHub() = default;
33     ~GridItemEventHub() override = default;
34 
SetOnSelect(SelectFunc && onSelect)35     void SetOnSelect(SelectFunc&& onSelect)
36     {
37         onSelect_ = std::move(onSelect);
38     }
39 
GetOnSelect()40     SelectFunc GetOnSelect() const
41     {
42         return onSelect_;
43     }
44 
SetSelectChangeEvent(SelectFunc && changeEvent)45     void SetSelectChangeEvent(SelectFunc&& changeEvent)
46     {
47         selectChangeEvent_ = std::move(changeEvent);
48     }
49 
GetSelectChangeEvent()50     SelectFunc GetSelectChangeEvent() const
51     {
52         return selectChangeEvent_;
53     }
54 
FireSelectChangeEvent(bool select)55     void FireSelectChangeEvent(bool select) const
56     {
57         if (selectChangeEvent_) {
58             selectChangeEvent_(select);
59         }
60         if (onSelect_) {
61             onSelect_(select);
62         }
63     }
64 
65 private:
66     SelectFunc onSelect_;
67     SelectFunc selectChangeEvent_;
68 };
69 
70 } // namespace OHOS::Ace::NG
71 #endif // FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_NG_PATTERN_GRID_GRID_ITEM_EVENT_HUB_H