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_BRIDGE_COMMON_DOM_DOM_DIV_H
17 #define FOUNDATION_ACE_FRAMEWORKS_BRIDGE_COMMON_DOM_DOM_DIV_H
18 
19 #include "base/utils/macros.h"
20 #include "core/components/flex/flex_component.h"
21 #include "core/components/grid_layout/grid_layout_component.h"
22 #include "core/components/grid_layout/grid_layout_item_component.h"
23 #include "core/components/scroll/scroll_component.h"
24 #include "core/components/theme/card_theme.h"
25 #include "core/components/wrap/wrap_component.h"
26 #include "frameworks/bridge/common/dom/dom_node.h"
27 
28 namespace OHOS::Ace::Framework {
29 
30 class DOMDiv : public DOMNode {
31     DECLARE_ACE_TYPE(DOMDiv, DOMNode);
32 
33 public:
34     DOMDiv(NodeId nodeId, const std::string& nodeName);
35     ~DOMDiv() override = default;
36 
GetFlexDirection()37     FlexDirection GetFlexDirection() const
38     {
39         return flexDirection_;
40     };
41 
GetScrollComponent()42     const RefPtr<ScrollComponent>& GetScrollComponent() const override
43     {
44         return scroll_;
45     }
46 
47     RefPtr<Component> GetSpecializedComponent() override;
48     void AdjustSpecialParamInLiteMode() override;
49 
50 protected:
51     void OnMounted(const RefPtr<DOMNode>& parentNode) override;
52     void OnChildNodeAdded(const RefPtr<DOMNode>& child, int32_t slot) override;
53     void OnChildNodeRemoved(const RefPtr<DOMNode>& child) override;
54     bool SetSpecializedStyle(const std::pair<std::string, std::string>& style) override;
55     void PrepareSpecializedComponent() override;
56     void CompositeComponents() override;
57     bool SetSpecializedAttr(const std::pair<std::string, std::string>& attr) override;
58     bool AddSpecializedEvent(int32_t pageId, const std::string& event) override;
59 
60     RefPtr<FlexComponent> flexChild_;
61     RefPtr<WrapComponent> wrapChild_;
62     std::string direction_ { DOM_FLEX_ROW };
63 
64 private:
65     enum class AxisAlign {
66         START = 0,
67         CENTER = 1,
68         END = 2,
69     };
70 
71     static Alignment ComputeFlexAlign(FlexAlign flexMainAlign, FlexAlign flexCrossAlign, bool isColumn, bool isRtl);
72     void CreateOrUpdateGrid();
73     void CreateOrUpdateGridItem();
74     void CreateOrUpdateFlex();
75     void CreateOrUpdateWrap();
76     void SetBoxWidthFlex(bool isHorizontal) const;
77     void SetRootBoxHeight() const;
78     void SetFlexHeight(FlexAlign flexMainAlign);
79     void SetCardThemeAttrs();
80     void InitScrollBar();
81     void SetSpecializedOverflow();
82 
83     bool isFlexWrap_ = false;
84     std::string justifyContent_ { DOM_JUSTIFY_CONTENT_START };
85     std::string alignItems_ { DOM_ALIGN_ITEMS_STRETCH };
86     std::string alignContent_ { DOM_ALIGN_CONTENT_START };
87 
88     // Wrap's variables
89     double spacing_ = 0.0;
90     double contentSpacing_ = 0.0;
91 
92     // flex properties.
93     FlexDirection flexDirection_ = FlexDirection::ROW;
94     TextDirection textDirection_ = TextDirection::LTR;
95 
96     // for grid layout
97     std::string columnsArgs_;
98     std::string rowsArgs_;
99     Dimension columnGap_ = 0.0_px;
100     Dimension rowGap_ = 0.0_px;
101 
102     // for grid layout item
103     int32_t columnStart_ = -1;
104     int32_t columnEnd_ = -1;
105     int32_t rowStart_ = -1;
106     int32_t rowEnd_ = -1;
107 
108     // for scroll reaching the edge event
109     EventMarker onReachStart_;
110     EventMarker onReachEnd_;
111     EventMarker onReachTop_;
112     EventMarker onReachBottom_;
113 
114     RefPtr<ScrollComponent> scroll_;
115     RefPtr<GridLayoutComponent> grid_;
116     RefPtr<GridLayoutItemComponent> gridItem_;
117     RefPtr<CardTheme> cardTheme_;
118     bool isCardBlur_ = false;
119     bool isCard_ = false;
120 };
121 
122 } // namespace OHOS::Ace::Framework
123 
124 #endif // FOUNDATION_ACE_FRAMEWORKS_BRIDGE_COMMON_DOM_DOM_DIV_H
125