1 /*
2 * Copyright (c) 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 #include "bridge/declarative_frontend/jsview/canvas/js_drawing_rendering_context.h"
17
18 #include "canvas_napi/js_canvas.h"
19
20 #include "base/geometry/ng/size_t.h"
21 #include "base/utils/utils.h"
22 #include "bridge/common/utils/engine_helper.h"
23 #include "bridge/declarative_frontend/engine/bindings.h"
24 #include "bridge/declarative_frontend/engine/js_converter.h"
25 #include "bridge/declarative_frontend/jsview/canvas/js_offscreen_rendering_context.h"
26 #include "bridge/declarative_frontend/jsview/js_utils.h"
27 #include "core/components_ng/base/modifier.h"
28
29 namespace OHOS::Ace::Framework {
30
JSBind(BindingTarget globalObj)31 void JSDrawingRenderingContext::JSBind(BindingTarget globalObj)
32 {
33 JSClass<JSDrawingRenderingContext>::Declare("DrawingRenderingContext");
34 JSClass<JSDrawingRenderingContext>::CustomProperty(
35 "size", &JSDrawingRenderingContext::JsGetSize, &JSDrawingRenderingContext::JsSetSize);
36 JSClass<JSDrawingRenderingContext>::CustomProperty(
37 "canvas", &JSDrawingRenderingContext::JsGetCanvas, &JSDrawingRenderingContext::JsSetCanvas);
38 JSClass<JSDrawingRenderingContext>::CustomMethod(
39 "invalidate", &JSDrawingRenderingContext::SetInvalidate);
40
41 JSClass<JSDrawingRenderingContext>::Bind(
42 globalObj, JSDrawingRenderingContext::Constructor, JSDrawingRenderingContext::Destructor);
43 }
44
Constructor(const JSCallbackInfo & args)45 void JSDrawingRenderingContext::Constructor(const JSCallbackInfo& args)
46 {
47 auto jsDrawingRenderContext = Referenced::MakeRefPtr<JSDrawingRenderingContext>();
48 jsDrawingRenderContext->IncRefCount();
49 args.SetReturnValue(Referenced::RawPtr(jsDrawingRenderContext));
50 int32_t unit = 0;
51 if (args.GetInt32Arg(0, unit) && (static_cast<CanvasUnit>(unit) == CanvasUnit::PX)) {
52 jsDrawingRenderContext->SetUnit(CanvasUnit::PX);
53 }
54 }
55
Destructor(JSDrawingRenderingContext * controller)56 void JSDrawingRenderingContext::Destructor(JSDrawingRenderingContext* controller)
57 {
58 if (controller != nullptr) {
59 controller->DecRefCount();
60 }
61 }
62
JSDrawingRenderingContext()63 JSDrawingRenderingContext::JSDrawingRenderingContext()
64 {
65 SetInstanceId(Container::CurrentIdSafely());
66 }
67
JsGetCanvas(const JSCallbackInfo & info)68 void JSDrawingRenderingContext::JsGetCanvas(const JSCallbackInfo& info)
69 {
70 info.SetReturnValue(jsCanvasVal_);
71 }
72
JsSetCanvas(const JSCallbackInfo & info)73 void JSDrawingRenderingContext::JsSetCanvas(const JSCallbackInfo& info)
74 {
75 return;
76 }
77
JsSetSize(const JSCallbackInfo & info)78 void JSDrawingRenderingContext::JsSetSize(const JSCallbackInfo& info)
79 {
80 return;
81 }
82
JsGetSize(const JSCallbackInfo & info)83 void JSDrawingRenderingContext::JsGetSize(const JSCallbackInfo& info)
84 {
85 auto retObj = JSRef<JSObject>::New();
86 retObj->SetProperty("width", size_.Width().value_or(0.0));
87 retObj->SetProperty("height", size_.Height().value_or(0.0));
88 info.SetReturnValue(retObj);
89 }
90
SetRSCanvasCallback(RefPtr<AceType> & canvasPattern)91 void JSDrawingRenderingContext::SetRSCanvasCallback(RefPtr<AceType>& canvasPattern)
92 {
93 auto func = [wp = WeakClaim(this)](RSCanvas* canvas, double width, double height) {
94 auto context = wp.Upgrade();
95 CHECK_NULL_VOID(context);
96 auto engine = EngineHelper::GetCurrentEngine();
97 CHECK_NULL_VOID(engine);
98 NativeEngine* nativeEngine = engine->GetNativeEngine();
99 napi_env env = reinterpret_cast<napi_env>(nativeEngine);
100 ScopeRAII scope(env);
101 double density = context->GetDensity();
102 height /= density;
103 width /= density;
104 context->size_.SetHeight(height);
105 context->size_.SetWidth(width);
106 auto jsCanvas = OHOS::Rosen::Drawing::JsCanvas::CreateJsCanvas(env, canvas);
107 JsiRef<JsiValue> jsCanvasVal = JsConverter::ConvertNapiValueToJsVal(jsCanvas);
108 context->jsCanvasVal_ = JSRef<JSVal>::Cast(jsCanvasVal);
109 };
110 std::function<void(RSCanvas*, double, double)> callback = func;
111 auto customPaintPattern = AceType::DynamicCast<NG::CanvasPattern>(canvasPattern);
112 if (customPaintPattern) {
113 customPaintPattern->SetRSCanvasCallback(callback);
114 }
115 }
116
SetInvalidate(const JSCallbackInfo & info)117 void JSDrawingRenderingContext::SetInvalidate(const JSCallbackInfo& info)
118 {
119 auto customPaintPattern = AceType::DynamicCast<NG::CanvasPattern>(canvasPattern_);
120 CHECK_NULL_VOID(customPaintPattern);
121 customPaintPattern->SetInvalidate();
122 }
123 } // namespace OHOS::Ace::Framework
124