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1 // Copyright 2016 The Chromium Authors. All rights reserved. | 1 // Copyright 2016 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "modules/offscreencanvas/OffscreenCanvasModules.h" | 5 #include "modules/offscreencanvas/OffscreenCanvasModules.h" |
6 | 6 |
7 #include "core/html/canvas/CanvasContextCreationAttributes.h" | 7 #include "core/html/canvas/CanvasContextCreationAttributes.h" |
8 #include "core/offscreencanvas/OffscreenCanvas.h" | 8 #include "core/offscreencanvas/OffscreenCanvas.h" |
9 #include "modules/offscreencanvas2d/OffscreenCanvasRenderingContext2D.h" | 9 #include "modules/offscreencanvas2d/OffscreenCanvasRenderingContext2D.h" |
10 | 10 |
11 namespace blink { | 11 namespace blink { |
12 | 12 |
13 void OffscreenCanvasModules::getContext( | 13 void OffscreenCanvasModules::getContext( |
14 ScriptState* scriptState, | 14 ScriptState* scriptState, |
15 OffscreenCanvas& offscreenCanvas, | 15 OffscreenCanvas& offscreenCanvas, |
16 const String& id, | 16 const String& id, |
17 const CanvasContextCreationAttributes& attributes, | 17 const CanvasContextCreationAttributes& attributes, |
18 ExceptionState& exceptionState, | 18 ExceptionState& exceptionState, |
19 OffscreenRenderingContext& result) { | 19 OffscreenRenderingContext& result) { |
20 if (offscreenCanvas.isNeutered()) { | 20 if (offscreenCanvas.isNeutered()) { |
21 exceptionState.throwDOMException(InvalidStateError, | 21 exceptionState.throwDOMException(InvalidStateError, |
22 "OffscreenCanvas object is detached"); | 22 "OffscreenCanvas object is detached"); |
23 return; | 23 return; |
24 } | 24 } |
25 | 25 |
| 26 // OffscreenCanvas cannot be transferred after getContext, so this execution |
| 27 // context will always be the right one from here on. |
| 28 offscreenCanvas.setExecutionContext(scriptState->getExecutionContext()); |
26 CanvasRenderingContext* context = | 29 CanvasRenderingContext* context = |
27 offscreenCanvas.getCanvasRenderingContext(scriptState, id, attributes); | 30 offscreenCanvas.getCanvasRenderingContext(scriptState, id, attributes); |
28 if (context) | 31 if (context) |
29 context->setOffscreenCanvasGetContextResult(result); | 32 context->setOffscreenCanvasGetContextResult(result); |
30 } | 33 } |
31 | 34 |
32 } // namespace blink | 35 } // namespace blink |
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