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_PATTERNS_TABS_TAB_CONTENT_EVENT_HUB_H
17 #define FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_NG_PATTERNS_TABS_TAB_CONTENT_EVENT_HUB_H
18 
19 
20 #include "base/memory/ace_type.h"
21 #include "core/components_ng/event/event_hub.h"
22 
23 namespace OHOS::Ace::NG {
24 class TabContentEventHub : public EventHub {
25     DECLARE_ACE_TYPE(TabContentEventHub, EventHub)
26 public:
27     TabContentEventHub() = default;
28     ~TabContentEventHub() override = default;
29 
SetOnWillShow(const std::function<void ()> & onWillShow)30     void SetOnWillShow(const std::function<void()>& onWillShow)
31     {
32         onWillShowEvent_ = onWillShow;
33     }
34 
SetOnWillHide(const std::function<void ()> & onWillHide)35     void SetOnWillHide(const std::function<void()>& onWillHide)
36     {
37         onWillHideEvent_ = onWillHide;
38     }
39 
FireWillShowEvent()40     void FireWillShowEvent()
41     {
42         if (onWillShowEvent_) {
43             onWillShowEvent_();
44         }
45     }
46 
FireWillHideEvent()47     void FireWillHideEvent()
48     {
49         if (onWillHideEvent_) {
50             onWillHideEvent_();
51         }
52     }
53 
54 private:
55     std::function<void()> onWillShowEvent_;
56     std::function<void()> onWillHideEvent_;
57 };
58 } // namespace OHOS::ACE::NG
59 
60 #endif // FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_NG_PATTERNS_TABS_TAB_CONTENT_EVENT_HUB_H
61