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_STACK_H
17 #define FOUNDATION_ACE_FRAMEWORKS_BRIDGE_COMMON_DOM_DOM_STACK_H
18 
19 #include "base/utils/macros.h"
20 #include "core/components/common/properties/alignment.h"
21 #include "core/components/stack/stack_component.h"
22 #include "frameworks/bridge/common/dom/dom_node.h"
23 #include "frameworks/bridge/common/dom/dom_type.h"
24 
25 namespace OHOS::Ace::Framework {
26 
27 class DOMStack final : public DOMNode {
28     DECLARE_ACE_TYPE(DOMStack, DOMNode);
29 
30 public:
31     DOMStack(NodeId nodeId, const std::string& nodeName);
32     ~DOMStack() override = default;
33 
GetSpecializedComponent()34     RefPtr<Component> GetSpecializedComponent() override
35     {
36         return stackChild_;
37     }
38 
GetScrollComponent()39     const RefPtr<ScrollComponent>& GetScrollComponent() const override
40     {
41         return scroll_;
42     }
43 
44 protected:
45     bool SetSpecializedStyle(const std::pair<std::string, std::string>& style) override;
46     void PrepareSpecializedComponent() override;
47     void OnChildNodeAdded(const RefPtr<DOMNode>& child, int32_t slot) override;
48     void OnChildNodeRemoved(const RefPtr<DOMNode>& child) override;
49     void CompositeComponents() override;
50 
51 private:
52     bool GetAxisOffset(const std::pair<std::string, std::string>& style);
53     void InitScrollBar();
54 
55     enum AxisAlign {
56         START = 0,
57         CENTER = 1,
58         END = 2,
59     };
60 
61     // Nine patched table
62     const Alignment AlignArray[3][3] { { Alignment::TOP_LEFT, Alignment::TOP_CENTER, Alignment::TOP_RIGHT },
63         { Alignment::CENTER_LEFT, Alignment::CENTER, Alignment::CENTER_RIGHT },
64         { Alignment::BOTTOM_LEFT, Alignment::BOTTOM_CENTER, Alignment::BOTTOM_RIGHT } };
65 
66     uint8_t mainAxisAlign_ { 0 };
67     uint8_t crossAxisAlign_ { 0 };
68     FlexDirection direction_ { FlexDirection::ROW };
69 
70     RefPtr<ScrollComponent> scroll_;
71     RefPtr<StackComponent> stackChild_;
72     StackFit stackFit_ { StackFit::KEEP };
73     Alignment alignment_ { Alignment::CENTER };
74 };
75 
76 } // namespace OHOS::Ace::Framework
77 
78 #endif // FOUNDATION_ACE_FRAMEWORKS_BRIDGE_COMMON_DOM_DOM_STACK_H
79