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 "base/memory/referenced.h" 20 #include "bridge/declarative_frontend/engine/bindings_defines.h" 21 #include "bridge/declarative_frontend/jsview/js_canvas_renderer.h" 22 23 #include "frameworks/bridge/declarative_frontend/jsview/js_rendering_context_settings.h" 24 #include "frameworks/bridge/declarative_frontend/jsview/js_view_abstract.h" 25 26 namespace OHOS::Ace::Framework { 27 28 class JSOffscreenRenderingContext : public JSCanvasRenderer { 29 public: 30 JSOffscreenRenderingContext(); 31 ~JSOffscreenRenderingContext() override = default; 32 33 static void JSBind(BindingTarget globalObj); 34 static void Constructor(const JSCallbackInfo& args); 35 static void Destructor(JSOffscreenRenderingContext* controller); 36 37 void JsTransferToImageBitmap(const JSCallbackInfo& info); GetOffscreenCanvas(int32_t id)38 static RefPtr<OffscreenCanvas> GetOffscreenCanvas(int32_t id) 39 { 40 std::lock_guard<std::mutex> lock(mutex_); 41 return offscreenCanvasMap_[id]; 42 } 43 GetOffscreenCanvasPattern(int32_t id)44 static RefPtr<NG::OffscreenCanvasPattern> GetOffscreenCanvasPattern(int32_t id) 45 { 46 std::lock_guard<std::mutex> lock(mutex_); 47 return offscreenCanvasPatternMap_[id]; 48 } 49 GetId()50 uint32_t GetId() 51 { 52 return id; 53 } 54 55 ACE_DISALLOW_COPY_AND_MOVE(JSOffscreenRenderingContext); 56 57 private: 58 static std::mutex mutex_; 59 static std::unordered_map<uint32_t, RefPtr<OffscreenCanvas>> offscreenCanvasMap_; 60 static std::unordered_map<uint32_t, RefPtr<NG::OffscreenCanvasPattern>> offscreenCanvasPatternMap_; 61 static uint32_t offscreenCanvasCount_; 62 static uint32_t offscreenCanvasPatternCount_; 63 uint32_t id; 64 }; 65 66 } // namespace OHOS::Ace::Framework 67 68 #endif // FOUNDATION_ACE_FRAMEWORK_JAVASCRIPT_BRIDGE_JS_VIEW_JS_OFFSCREEN_RENDERING_CONTEXT_H