1 /*
2  * Copyright (c) 2023 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_PATTERNS_RENDER_NODE_RENDER_NODE_PATTERN_H
17 #define FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_NG_PATTERNS_RENDER_NODE_RENDER_NODE_PATTERN_H
18 #include <functional>
19 
20 #include "base/memory/referenced.h"
21 #include "base/utils/utils.h"
22 #include "core/components_ng/base/modifier.h"
23 #include "core/components_ng/pattern/pattern.h"
24 #include "core/components_ng/pattern/render_node/render_node_layout_algorithm.h"
25 #include "core/components_ng/pattern/render_node/render_node_layout_property.h"
26 #include "core/components_ng/pattern/render_node/render_node_modifier.h"
27 #include "core/components_ng/pattern/render_node/render_node_paint_method.h"
28 #include "core/components_ng/pattern/render_node/render_node_paint_property.h"
29 
30 namespace OHOS::Ace::NG {
31 using DrawCallback = std::function<void(DrawingContext)>;
32 
33 class ACE_EXPORT RenderNodePattern : public Pattern {
34     DECLARE_ACE_TYPE(RenderNodePattern, Pattern);
35 
36 public:
37     RenderNodePattern() = default;
38     ~RenderNodePattern() override = default;
39 
CreateLayoutAlgorithm()40     RefPtr<LayoutAlgorithm> CreateLayoutAlgorithm() override
41     {
42         return MakeRefPtr<RenderNodeLayoutAlgorithm>();
43     }
44 
CreateLayoutProperty()45     RefPtr<LayoutProperty> CreateLayoutProperty() override
46     {
47         return MakeRefPtr<RenderNodeLayoutProperty>();
48     }
49 
IsAtomicNode()50     bool IsAtomicNode() const override
51     {
52         return false;
53     }
54 
GetFocusPattern()55     FocusPattern GetFocusPattern() const override
56     {
57         return { FocusType::SCOPE, true };
58     }
59 
IsNeedInitClickEventRecorder()60     bool IsNeedInitClickEventRecorder() const override
61     {
62         return true;
63     }
64 
SetDrawCallback(std::function<void (DrawingContext & context)> && drawCallback)65     void SetDrawCallback(std::function<void(DrawingContext& context)>&& drawCallback)
66     {
67         drawCallback_ = drawCallback;
68         renderNodeModifier_ = AceType::MakeRefPtr<RenderNodeModifier>(drawCallback_);
69     }
70 
CreatePaintProperty()71     RefPtr<PaintProperty> CreatePaintProperty() override
72     {
73         auto renderNodePaintProperty = MakeRefPtr<RenderNodePaintProperty>();
74         renderNodePaintProperty->UpdateRenderNodeFlag(0);
75         return renderNodePaintProperty;
76     }
77 
CreateNodePaintMethod()78     RefPtr<NodePaintMethod> CreateNodePaintMethod() override
79     {
80         auto host = GetHost();
81         CHECK_NULL_RETURN(host, nullptr);
82         auto paintProperty = host->GetPaintProperty<RenderNodePaintProperty>();
83         paintProperty->SetHost(host);
84 
85         if (!renderNodeModifier_) {
86             renderNodeModifier_ = AceType::MakeRefPtr<RenderNodeModifier>(drawCallback_);
87         }
88         auto paintMethod = AceType::MakeRefPtr<RenderNodePaintMethod>(renderNodeModifier_);
89         return paintMethod;
90     }
91 
Invalidate()92     void Invalidate()
93     {
94         CHECK_NULL_VOID(renderNodeModifier_);
95         renderNodeModifier_->Modify();
96     }
97 
ToJsonValue(std::unique_ptr<JsonValue> & json,const InspectorFilter & filter)98     void ToJsonValue(std::unique_ptr<JsonValue>& json, const InspectorFilter& filter) const override
99     {
100         Pattern::ToJsonValue(json, filter);
101         /* no fixed attr below, just return */
102         if (filter.IsFastFilter()) {
103             return;
104         }
105 
106         json->PutExtAttr("label", label_.c_str(), filter);
107     }
108 
SetLabel(const std::string & label)109     void SetLabel(const std::string& label)
110     {
111         label_ = label;
112     }
113 
114 private:
115     void OnModifyDone() override;
116 
117     std::function<void(DrawingContext& context)> drawCallback_;
118     RefPtr<RenderNodeModifier> renderNodeModifier_;
119     std::string label_;
120 };
121 } // namespace OHOS::Ace::NG
122 
123 #endif // FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_NG_PATTERNS_RENDER_NODE_RENDER_NODE_PATTERN_H
124