1 /*
2  * Copyright (c) 2022-2024 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_PATTERN_NAVIGATION_TITLE_BAR_LAYOUT_ALGORITHM_H
17 #define FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_NG_PATTERN_NAVIGATION_TITLE_BAR_LAYOUT_ALGORITHM_H
18 
19 #include "base/memory/referenced.h"
20 #include "core/components_ng/layout/layout_algorithm.h"
21 #include "core/components_ng/layout/layout_wrapper.h"
22 #include "core/components_ng/pattern/navigation/title_bar_layout_property.h"
23 #include "core/components_ng/pattern/navigation/title_bar_node.h"
24 
25 namespace OHOS::Ace::NG {
26 
27 class ACE_EXPORT TitleBarLayoutAlgorithm : public LayoutAlgorithm {
28     DECLARE_ACE_TYPE(TitleBarLayoutAlgorithm, LayoutAlgorithm);
29 
30 public:
31     TitleBarLayoutAlgorithm() = default;
32     ~TitleBarLayoutAlgorithm() override = default;
33     void Measure(LayoutWrapper* layoutWrapper) override;
34     void Layout(LayoutWrapper* layoutWrapper) override;
35 
GetInitialTitleOffsetY()36     float GetInitialTitleOffsetY() const
37     {
38         return initialTitleOffsetY_;
39     }
40 
SetInitialTitleOffsetY(float initialTitleOffsetY)41     void SetInitialTitleOffsetY(float initialTitleOffsetY)
42     {
43         initialTitleOffsetY_ = initialTitleOffsetY;
44     }
45 
IsInitialTitle()46     bool IsInitialTitle() const
47     {
48         return isInitialTitle_;
49     }
50 
MarkIsInitialTitle(bool isInitialTitle)51     void MarkIsInitialTitle(bool isInitialTitle)
52     {
53         isInitialTitle_ = isInitialTitle;
54     }
55 
GetInitialSubtitleOffsetY()56     float GetInitialSubtitleOffsetY() const
57     {
58         return initialSubtitleOffsetY_;
59     }
60 
SetInitialSubtitleOffsetY(float initialSubtitleOffsetY)61     void SetInitialSubtitleOffsetY(float initialSubtitleOffsetY)
62     {
63         initialSubtitleOffsetY_ = initialSubtitleOffsetY;
64     }
65 
IsInitialSubtitle()66     bool IsInitialSubtitle() const
67     {
68         return isInitialSubtitle_;
69     }
70 
MarkIsInitialSubtitle(bool isInitialSubtitle)71     void MarkIsInitialSubtitle(bool isInitialSubtitle)
72     {
73         isInitialSubtitle_ = isInitialSubtitle;
74     }
75 
SetMinTitleHeight(float minTitleHeight)76     void SetMinTitleHeight(float minTitleHeight)
77     {
78         minTitleHeight_ = minTitleHeight;
79     }
80 
GetMinTitleHeight()81     float GetMinTitleHeight() const
82     {
83         return minTitleHeight_;
84     }
85 
86 private:
87     void BackButtonLayout(LayoutWrapper* layoutWrapper);
88 
89     void UpdateIconSize(const RefPtr<FrameNode>& backButtonNode);
90 
91     void MeasureBackButton(LayoutWrapper* layoutWrapper, const RefPtr<TitleBarNode>& titleBarNode,
92         const RefPtr<TitleBarLayoutProperty>& titleBarLayoutProperty);
93 
94     void MeasureSubtitle(LayoutWrapper* layoutWrapper, const RefPtr<TitleBarNode>& titleBarNode,
95         const RefPtr<TitleBarLayoutProperty>& titleBarLayoutProperty, const SizeF& titleBarSize, float occupiedWidth);
96 
97     void MeasureTitle(LayoutWrapper* layoutWrapper, const RefPtr<TitleBarNode>& titleBarNode,
98         const RefPtr<TitleBarLayoutProperty>& titleBarLayoutProperty, const SizeF& titleBarSize, float maxWidth);
99 
100     float GetTitleWidth(const RefPtr<TitleBarNode>& titleBarNode,
101     const RefPtr<TitleBarLayoutProperty>& titleBarLayoutProperty, const SizeF& titleBarSize);
102 
103     float WidthAfterAvoidMenubar(const RefPtr<TitleBarNode>& titleBarNode, float width);
104 
105     void MeasureMenu(LayoutWrapper* layoutWrapper, const RefPtr<TitleBarNode>& titleBarNode,
106         const RefPtr<TitleBarLayoutProperty>& titleBarLayoutProperty);
107 
108     void ShowBackButtonLayout(LayoutWrapper* layoutWrapper,
109         const RefPtr<TitleBarLayoutProperty>& titleBarLayoutProperty,
110         RefPtr<GeometryNode>& geometryNode, const RefPtr<LayoutWrapper>& backButtonWrapper);
111 
112     void LayoutBackButton(LayoutWrapper* layoutWrapper, const RefPtr<TitleBarNode>& titleBarNode,
113         const RefPtr<TitleBarLayoutProperty>& titleBarLayoutProperty);
114 
115     float GetFullModeTitleOffsetY(float titleHeight, float subtitleHeight, RefPtr<GeometryNode> titleBarGeometryNode);
116 
117     void LayoutTitle(LayoutWrapper* layoutWrapper, const RefPtr<TitleBarNode>& titleBarNode,
118         const RefPtr<TitleBarLayoutProperty>& titleBarLayoutProperty, float subtitleHeight);
119 
120     void LayoutSubtitle(LayoutWrapper* layoutWrapper, const RefPtr<TitleBarNode>& titleBarNode,
121         const RefPtr<TitleBarLayoutProperty>& titleBarLayoutProperty, float titleHeight);
122     void LayoutMenu(LayoutWrapper* layoutWrapper, const RefPtr<TitleBarNode>& titleBarNode,
123         const RefPtr<TitleBarLayoutProperty>& titleBarLayoutProperty, float subtitleHeight);
124     float ChangeOffsetByDirection(LayoutWrapper* layoutWrapper,
125         const RefPtr<NG::GeometryNode>& childGeometryNode, float offsetX) const;
126     float ParseCalcDimensionToPx(const std::optional<CalcDimension>& value, const SizeF& titleBarSize);
127 
128     // set variables from theme
129     void InitializeTheme(const RefPtr<TitleBarNode>& titleBarNode, const SizeF& titleBarSize);
130 
131     Dimension maxPaddingStart_;
132     Dimension maxPaddingEnd_;
133     Dimension defaultPaddingStart_;
134     Dimension iconSize_;
135     Dimension titleFontSize_;
136     Dimension iconBackgroundWidth_;
137     Dimension backButtonWidth_;
138     Dimension backButtonHeight_;
139     Dimension backIconWidth_;
140     Dimension backIconHeight_;
141     Dimension menuCompPadding_;
142     Dimension paddingTopTwolines_;
143     Dimension titleSpaceVertical_;
144 
145     float menuHeight_ = 0.0f;
146     float initialTitleOffsetY_ = 0.0f;
147 
148     bool isInitialTitle_ = true;
149     float initialSubtitleOffsetY_ = 0.0f;
150     bool isInitialSubtitle_ = true;
151     float minTitleHeight_ = 0.0f;
152     float menuWidth_ = 0.0f;
153     bool showBackButton_ = false;
154 
155     float singleLineTitleHeight_ = 0.0f;
156     float doubleLineTitleBarHeight_ = 0.0f;
157     float navTitleSpaceVertical_ = 0.0f;
158     float paddingLeft_ = 0.0f;
159     float paddingRight_ = 0.0f;
160     float navBackIconWidth_ = 0.0f;
161     float navButtonPadding_ = 0.0f;
162     float navHorizontalMargin_ = 0.0f;
163 
164     ACE_DISALLOW_COPY_AND_MOVE(TitleBarLayoutAlgorithm);
165 };
166 
167 } // namespace OHOS::Ace::NG
168 
169 #endif // FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_NG_PATTERN_NAVIGATION_TITLE_BAR_LAYOUT_ALGORITHM_H
170