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_STEPPER_STEPPER_ELEMENT_H
17 #define FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_STEPPER_STEPPER_ELEMENT_H
18 
19 #include "core/focus/focus_node.h"
20 #include "core/pipeline/base/component_group_element.h"
21 #include "core/pipeline/base/render_element.h"
22 
23 namespace OHOS::Ace {
24 
25 class StepperElement : public ComponentGroupElement, public FocusGroup {
26     DECLARE_ACE_TYPE(StepperElement, ComponentGroupElement, FocusGroup);
27 
28 public:
29     void PerformBuild() override;
30 
31 protected:
32     void OnFocus() override;
33     void OnBlur() override;
34     bool RequestNextFocus(bool vertical, bool reverse, const Rect& rect) override;
35     bool OnKeyEvent(const KeyEvent& keyEvent) override;
36 
37 private:
38     RefPtr<RenderNode> CreateRenderNode() override;
39     void registerCallBack();
40     void RequestChildFocus(int32_t index);
41     void HandleOnButtonClick(bool isLeft);
42     void HandleOnButtonFocus(bool focus, bool isLeft);
43     bool RequestLeftButtonFocus();
44     bool RequestRightButtonFocus();
45     bool RequestCurrentItemFocus();
46 
47     RefPtr<FocusNode> leftFocusNode_;
48     RefPtr<FocusNode> rightFocusNode_;
49 };
50 
51 } // namespace OHOS::Ace
52 
53 #endif // FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_STEPPER_STEPPER_ELEMENT_H
54