| // Copyright 2016 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "modules/offscreencanvas/OffscreenCanvasModules.h" |
| |
| #include "core/html/canvas/CanvasContextCreationAttributes.h" |
| #include "core/offscreencanvas/OffscreenCanvas.h" |
| #include "modules/offscreencanvas2d/OffscreenCanvasRenderingContext2D.h" |
| |
| namespace blink { |
| |
| OffscreenCanvasRenderingContext2D* OffscreenCanvasModules::getContext(OffscreenCanvas& offscreenCanvas, const String& id, const CanvasContextCreationAttributes& attributes, ExceptionState& exceptionState) |
| { |
| if (offscreenCanvas.isNeutered()) { |
| exceptionState.throwDOMException(InvalidStateError, "OffscreenCanvas object is detached"); |
| return nullptr; |
| } |
| |
| CanvasRenderingContext* context = offscreenCanvas.getCanvasRenderingContext(id, attributes); |
| if (!context) |
| return nullptr; |
| |
| return static_cast<OffscreenCanvasRenderingContext2D*>(context); |
| } |
| |
| } // namespace blink |
