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_FRAMEWORK_JAVASCRIPT_BRIDGE_JS_VIEW_JS_OFFSCREEN_RENDERING_CONTEXT_H
17 #define FOUNDATION_ACE_FRAMEWORK_JAVASCRIPT_BRIDGE_JS_VIEW_JS_OFFSCREEN_RENDERING_CONTEXT_H
18 
19 #include "bridge/declarative_frontend/jsview/canvas/js_canvas_renderer.h"
20 #include "bridge/declarative_frontend/jsview/canvas/js_rendering_context_settings.h"
21 
22 namespace OHOS::Ace::Framework {
23 
24 class JSOffscreenRenderingContext : public JSCanvasRenderer {
25 public:
26     JSOffscreenRenderingContext();
27     ~JSOffscreenRenderingContext() override = default;
28 
29     static void JSBind(BindingTarget globalObj);
30     static void Constructor(const JSCallbackInfo& args);
31     static void Destructor(JSOffscreenRenderingContext* controller);
32 
33     void JsTransferToImageBitmap(const JSCallbackInfo& info);
34 
AddOffscreenCanvasPattern(const RefPtr<AceType> & pattern)35     static void AddOffscreenCanvasPattern(const RefPtr<AceType>& pattern)
36     {
37         CHECK_NULL_VOID(pattern);
38         std::lock_guard<std::mutex> lock(mutex_);
39         offscreenPatternMap_[offscreenPatternCount_++] = pattern;
40     }
41 
GetOffscreenPattern(int32_t id)42     static RefPtr<AceType> GetOffscreenPattern(int32_t id)
43     {
44         std::lock_guard<std::mutex> lock(mutex_);
45         return offscreenPatternMap_[id];
46     }
47 
GetId()48     uint32_t GetId()
49     {
50         return id_;
51     }
52 
SetWidth(double width)53     void SetWidth(double width)
54     {
55         width_ = width;
56     }
57 
GetWidth()58     double GetWidth() const
59     {
60         return width_;
61     }
62 
SetHeight(double height)63     void SetHeight(double height)
64     {
65         height_ = height;
66     }
67 
GetHeight()68     double GetHeight() const
69     {
70         return height_;
71     }
72 
73     ACE_DISALLOW_COPY_AND_MOVE(JSOffscreenRenderingContext);
74 
75 private:
76     static std::mutex mutex_;
77     uint32_t id_ = 0;
78     double width_ = 0.0f;
79     double height_ = 0.0f;
80     static std::unordered_map<uint32_t, RefPtr<AceType>> offscreenPatternMap_;
81     static uint32_t offscreenPatternCount_;
82 };
83 } // namespace OHOS::Ace::Framework
84 #endif // FOUNDATION_ACE_FRAMEWORK_JAVASCRIPT_BRIDGE_JS_VIEW_JS_OFFSCREEN_RENDERING_CONTEXT_H
85