1 /*
2  * Copyright (c) 2021-2022 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_V2_LIST_RENDER_LIST_ITEM_H
17 #define FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_V2_LIST_RENDER_LIST_ITEM_H
18 
19 #include "base/geometry/dimension.h"
20 #include "core/components_v2/list/list_item_component.h"
21 #include "core/gestures/long_press_recognizer.h"
22 #include "core/gestures/drag_recognizer.h"
23 #include "core/pipeline/base/render_node.h"
24 #include "core/animation/spring_motion.h"
25 #include "core/components/list/list_item_theme.h"
26 
27 namespace OHOS::Ace::V2 {
28 
29 enum class ListItemChildType {
30     ITEM_CHILD,
31     SWIPER_START,
32     SWIPER_END
33 };
34 
35 enum class ListItemSwipeIndex {
36     SWIPER_END = -1,
37     ITEM_CHILD = 0,
38     SWIPER_START = 1,
39 };
40 
41 class RenderListItem : public RenderNode {
42     DECLARE_ACE_TYPE(V2::RenderListItem, RenderNode);
43 
44 public:
45     static RefPtr<RenderNode> Create();
46 
47     RenderListItem() = default;
48     ~RenderListItem() override = default;
49 
50     void Update(const RefPtr<Component>& component) override;
51     void PerformLayout() override;
52     void Paint(RenderContext& context, const Offset& offset) override;
53     void UpdateTouchRect() override;
54 
IsForwardLayout()55     virtual bool IsForwardLayout() const
56     {
57         return true;
58     }
59 
IsDeletable()60     bool IsDeletable() const
61     {
62         return component_ ? (component_->GetEditMode() & EditMode::DELETABLE) != 0 : false;
63     }
64 
IsMovable()65     bool IsMovable() const
66     {
67         return component_ ? (component_->GetEditMode() & EditMode::MOVABLE) != 0 : false;
68     }
69 
GetSticky()70     StickyMode GetSticky() const
71     {
72         return component_ ? component_->GetSticky() : StickyMode::NONE;
73     }
74 
GetZIndex()75     int32_t GetZIndex() const
76     {
77         return component_ ? component_->GetZIndex() : 0;
78     }
79 
80     void SetEditMode(bool editMode);
81 
82     ACE_DEFINE_COMPONENT_EVENT(OnDeleteClick, void(RefPtr<RenderListItem>));
83     ACE_DEFINE_COMPONENT_EVENT(OnSelect, void(RefPtr<RenderListItem>));
84 
GetComponent()85     RefPtr<Component> GetComponent() override
86     {
87         return component_;
88     }
89 
GetEditMode()90     int32_t GetEditMode() const
91     {
92         return component_->GetEditMode();
93     }
94 
GetSelectable()95     bool GetSelectable() const
96     {
97         return selectable_;
98     }
99 
GetOnSelectId()100     OnSelectFunc GetOnSelectId() const
101     {
102         return onSelectId_;
103     }
104 
MarkIsSelected(bool isSelected)105     void MarkIsSelected(bool isSelected)
106     {
107         isSelected_ = isSelected;
108     }
109 
IsSelected()110     bool IsSelected() const
111     {
112         return isSelected_;
113     }
114 
IsDragStart()115     bool IsDragStart() const
116     {
117         return isDragStart_;
118     }
119 
GetBorderRadius()120     Dimension GetBorderRadius() const
121     {
122         return borderRadius_;
123     }
SetIndex(int index)124     void SetIndex(int index)
125     {
126         index_ = index;
127     }
GetIndex()128     int GetIndex() const
129     {
130         return index_;
131     }
132 
RegisterGetChildCallback(std::function<RefPtr<RenderNode> (ListItemChildType)> callback)133     void RegisterGetChildCallback(std::function<RefPtr<RenderNode>(ListItemChildType)> callback)
134     {
135         getChildCallback_ = std::move(callback);
136     }
137 
GetSwiperStartRenderNode()138     RefPtr<RenderNode> GetSwiperStartRenderNode() const
139     {
140         return getChildCallback_ ? getChildCallback_(ListItemChildType::SWIPER_START) : nullptr;
141     }
142 
GetSwiperEndRenderNode()143     RefPtr<RenderNode> GetSwiperEndRenderNode() const
144     {
145         return getChildCallback_ ? getChildCallback_(ListItemChildType::SWIPER_END) : nullptr;
146     }
147 
GetItemChildRenderNode()148     RefPtr<RenderNode> GetItemChildRenderNode() const
149     {
150         return getChildCallback_ ? getChildCallback_(ListItemChildType::ITEM_CHILD) : nullptr;
151     }
152 
153     template<class T>
MakeValue(double mainValue,double crossValue)154     T MakeValue(double mainValue, double crossValue) const
155     {
156         return IsVertical() ? T(crossValue, mainValue) : T(mainValue, crossValue);
157     }
158 
GetMainSize(const Size & size)159     double GetMainSize(const Size& size) const
160     {
161         return IsVertical() ? size.Height() : size.Width();
162     }
163 
GetCrossSize(const Size & size)164     double GetCrossSize(const Size& size) const
165     {
166         return IsVertical() ? size.Width() : size.Height();
167     }
168 
GetMainAxis(const Offset & size)169     double GetMainAxis(const Offset& size) const
170     {
171         return IsVertical() ? size.GetY() : size.GetX();
172     }
173 
GetCrossAxis(const Offset & size)174     double GetCrossAxis(const Offset& size) const
175     {
176         return IsVertical() ? size.GetX() : size.GetY();
177     }
178 
179 protected:
180     void OnTouchTestHit(
181         const Offset& coordinateOffset, const TouchRestrict& touchRestrict, TouchTestResult& result) override;
182 
183 private:
184     int index_ = -1;
185     void CreateDeleteButton();
186     void PerfLayoutSwiperMode();
187     void InitDragRecognizer();
188     void HandleDragStart(const DragStartInfo& info);
189     void HandleDragUpdate(const DragUpdateInfo& info);
190     void HandleDragEnd(const DragEndInfo& info);
191     void StartSpringMotion(double start, double end, double velocity);
192     double GetFriction();
193     void UpdatePostion(double delta);
194     double CalculateFriction(double gamma);
195     bool IsVertical() const;
196 
197     RefPtr<ListItemComponent> component_;
198     std::function<RefPtr<RenderNode>(ListItemChildType)> getChildCallback_;
199     RefPtr<RenderNode> swiperStart_;
200     RefPtr<RenderNode> swiperEnd_;
201 
202     RefPtr<RenderNode> child_;
203     RefPtr<RenderNode> button_;
204     bool editMode_ = false;
205 
206     RefPtr<LongPressRecognizer> longPressRecognizer_;
207     OnSelectFunc onSelectId_;
208     bool selectable_ = true;
209     bool isSelected_ = false;
210     bool isDragStart_ = false;
211     Dimension borderRadius_;
212 
213     double curOffset_ = 0.0;
214     RefPtr<DragRecognizer> dragDetector_;
215     RefPtr<Animator> springController_;
216     RefPtr<SpringMotion> springMotion_;
217     ListItemSwipeIndex swipeIndex = ListItemSwipeIndex::ITEM_CHILD;
218     Size startSize_;
219     Size endSize_;
220     SwipeEdgeEffect edgeEffect_ = SwipeEdgeEffect::Spring;
221     RefPtr<ListItemTheme> theme_;
222 
223     ACE_DISALLOW_COPY_AND_MOVE(RenderListItem);
224 };
225 
226 } // namespace OHOS::Ace::V2
227 
228 #endif // FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_V2_LIST_RENDER_LIST_ITEM_H
229