1 // Copyright (c) 2014 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4 
5 #ifndef THIRD_PARTY_BLINK_RENDERER_CORE_HTML_CANVAS_CANVAS_RENDERING_CONTEXT_FACTORY_H_
6 #define THIRD_PARTY_BLINK_RENDERER_CORE_HTML_CANVAS_CANVAS_RENDERING_CONTEXT_FACTORY_H_
7 
8 #include "base/macros.h"
9 #include "base/memory/scoped_refptr.h"
10 #include "third_party/blink/renderer/core/core_export.h"
11 #include "third_party/blink/renderer/core/dom/document.h"
12 #include "third_party/blink/renderer/core/html/canvas/canvas_context_creation_attributes_core.h"
13 #include "third_party/blink/renderer/core/html/canvas/canvas_rendering_context.h"
14 #include "third_party/blink/renderer/platform/wtf/allocator/allocator.h"
15 
16 namespace blink {
17 
18 class HTMLCanvasElement;
19 class OffscreenCanvas;
20 
21 class CORE_EXPORT CanvasRenderingContextFactory {
22   USING_FAST_MALLOC(CanvasRenderingContextFactory);
23 
24  public:
25   CanvasRenderingContextFactory() = default;
26   virtual ~CanvasRenderingContextFactory() = default;
27 
28   virtual CanvasRenderingContext* Create(
29       CanvasRenderingContextHost*,
30       const CanvasContextCreationAttributesCore&) = 0;
31 
32   virtual CanvasRenderingContext::ContextType GetContextType() const = 0;
OnError(HTMLCanvasElement *,const String & error)33   virtual void OnError(HTMLCanvasElement*, const String& error) {}
OnError(OffscreenCanvas *,const String & error)34   virtual void OnError(OffscreenCanvas*, const String& error) {}
35 
36   DISALLOW_COPY_AND_ASSIGN(CanvasRenderingContextFactory);
37 };
38 
39 }  // namespace blink
40 
41 #endif  // THIRD_PARTY_BLINK_RENDERER_CORE_HTML_CANVAS_CANVAS_RENDERING_CONTEXT_FACTORY_H_
42