1 /*
2  * Copyright (c) 2021 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_SWIPER_SWIPER_ELEMENT_H
17 #define FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_SWIPER_SWIPER_ELEMENT_H
18 
19 #include "base/geometry/axis.h"
20 #include "base/utils/macros.h"
21 #include "core/focus/focus_node.h"
22 #include "core/pipeline/base/component_group_element.h"
23 #include "core/pipeline/base/render_element.h"
24 
25 namespace OHOS::Ace {
26 
27 class ACE_EXPORT SwiperElement : public ComponentGroupElement, public FocusGroup {
28     DECLARE_ACE_TYPE(SwiperElement, ComponentGroupElement, FocusGroup);
29 
30 public:
31     bool IsFocusable() const override;
32     void PerformBuild() override;
33 
34 protected:
35     void OnFocus() override;
36     void OnBlur() override;
37     bool RequestNextFocus(bool vertical, bool reverse, const Rect& rect) override;
38     bool OnKeyEvent(const KeyEvent& keyEvent) override;
39 
40 private:
41     void registerCallBack();
42     void RequestChildFocus(int32_t index);
43     void HandleIndicatorFocus(bool isFocus);
44     bool RequestIndicatorFocus();
45     bool RequestCurrentItemFocus();
46 
47     RefPtr<FocusNode> indicatorFocusNode_;
48     bool showIndicator_ = true;
49     Axis axis_ = Axis::HORIZONTAL;
50 };
51 
52 } // namespace OHOS::Ace
53 
54 #endif // FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_SWIPER_SWIPER_ELEMENT_H
55