1 /*
2  * Copyright (c) 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_NG_PATTERN_NAVIGATION_NAVIGATION_LAYOUT_ALGORITHM_H
17 #define FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_NG_PATTERN_NAVIGATION_NAVIGATION_LAYOUT_ALGORITHM_H
18 
19 #include <cstdint>
20 
21 #include "base/memory/referenced.h"
22 #include "core/components_ng/layout/layout_algorithm.h"
23 #include "core/components_ng/layout/layout_wrapper.h"
24 #include "core/components_ng/pattern/navigation/navigation_declaration.h"
25 #include "core/components_ng/pattern/navigation/navigation_group_node.h"
26 #include "core/components_ng/pattern/navigation/navigation_layout_property.h"
27 
28 namespace OHOS::Ace::NG {
29 
30 class ACE_EXPORT NavigationLayoutAlgorithm : public LayoutAlgorithm {
31     DECLARE_ACE_TYPE(NavigationLayoutAlgorithm, LayoutAlgorithm);
32 
33 public:
34     NavigationLayoutAlgorithm() = default;
35     ~NavigationLayoutAlgorithm() override = default;
36     void Measure(LayoutWrapper* layoutWrapper) override;
37     void Layout(LayoutWrapper* layoutWrapper) override;
38 
SetRealNavBarWidth(float realNavBarWidth)39     void SetRealNavBarWidth(float realNavBarWidth)
40     {
41         realNavBarWidth_ = realNavBarWidth;
42     }
43 
SetIfNeedInit(bool ifNeedInit)44     void SetIfNeedInit(bool ifNeedInit)
45     {
46         ifNeedInit_ = ifNeedInit;
47     }
48 
49     static bool IsAutoHeight(const RefPtr<LayoutProperty>& layoutProperty);
50 
51 private:
52     ACE_DISALLOW_COPY_AND_MOVE(NavigationLayoutAlgorithm);
53     void MeasureNavBar(LayoutWrapper* layoutWrapper, const RefPtr<NavigationGroupNode>& hostNode,
54         const RefPtr<NavigationLayoutProperty>& navigationLayoutProperty, const SizeF& navBarSize);
55 
56     void MeasureContentChild(LayoutWrapper* layoutWrapper, const RefPtr<NavigationGroupNode>& hostNode,
57         const RefPtr<NavigationLayoutProperty>& navigationLayoutProperty, const SizeF& contentSize_);
58 
59     void RangeCalculation(
60         const RefPtr<NavigationGroupNode>& hostNode, const RefPtr<NavigationLayoutProperty>& navigationLayoutProperty);
61 
62     void GetRange(const RefPtr<NavigationGroupNode>& hostNode);
63 
64     void UpdateNavigationMode(const RefPtr<NavigationLayoutProperty>& navigationLayoutProperty, const SizeF& frameSize,
65         const RefPtr<NavigationGroupNode>& hostNode);
66 
67     void SizeCalculation(LayoutWrapper* layoutWrapper, const RefPtr<NavigationGroupNode>& hostNode,
68         const RefPtr<NavigationLayoutProperty>& navigationLayoutProperty, const SizeF& frameSize);
69 
70     void SizeCalculationSplit(const RefPtr<NavigationGroupNode>& hostNode,
71         const RefPtr<NavigationLayoutProperty>& navigationLayoutProperty, const SizeF& frameSize);
72     void CheckSizeInSplit(const float frameWidth, const float userSetNavBarWidth, const float minNavBarWidth,
73         const float minContentWidth);
74 
75     void SizeCalculationStack(const RefPtr<NavigationGroupNode>& hostNode,
76         const RefPtr<NavigationLayoutProperty>& navigationLayoutProperty, const SizeF& frameSize);
77 
78     float CalculateNavigationWidth(const RefPtr<NavigationGroupNode>& hostNode);
79 
80     void SetNavigationHeight(LayoutWrapper* layoutWrapper, SizeF& size);
81 
82     bool ifNeedInit_ = true;
83 
84     bool userSetNavBarRangeFlag_ = false;
85     bool userSetMinContentFlag_ = false;
86     bool userSetNavBarWidthFlag_ = false;
87     Dimension minNavBarWidthValue_ = 0.0_vp;
88     Dimension maxNavBarWidthValue_ = 0.0_vp;
89     Dimension minContentWidthValue_ = 0.0_vp;
90 
91     float realNavBarWidth_ = 0.0f;
92     float realDividerWidth_ = 0.0f;
93     float realNavBarHeight_ = 0.0f;
94     float realContentWidth_ = 0.0f;
95     float realContentHeight_ = 0.0f;
96 
97     SizeF navBarSize_ = SizeF(0.0f, 0.0f);
98     SizeF contentSize_ = SizeF(0.0f, 0.0f);
99     SizeF dividerSize_ = SizeF(0.0f, 0.0f);
100 };
101 
102 } // namespace OHOS::Ace::NG
103 
104 #endif // FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_NG_PATTERN_NAVIGATION_NAVIGATION_LAYOUT_ALGORITHM_H
105