1/*
2 * Copyright (C) 2011 Apple Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 *    notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 *    notice, this list of conditions and the following disclaimer in the
11 *    documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#ifndef WebGLContextObject_h
27#define WebGLContextObject_h
28
29#include "core/html/canvas/WebGLObject.h"
30
31namespace blink {
32class WebGraphicsContext3D;
33}
34
35namespace WebCore {
36
37class WebGLRenderingContextBase;
38
39// WebGLContextObject the base class for objects that are owned by a specific
40// WebGLRenderingContextBase.
41class WebGLContextObject : public WebGLObject {
42public:
43    virtual ~WebGLContextObject();
44
45    WebGLRenderingContextBase* context() const { return m_context; }
46
47    virtual bool validate(const WebGLContextGroup*, const WebGLRenderingContextBase* context) const OVERRIDE FINAL
48    {
49        return context == m_context;
50    }
51
52    void detachContext();
53
54protected:
55    WebGLContextObject(WebGLRenderingContextBase*);
56
57    virtual bool hasGroupOrContext() const OVERRIDE FINAL
58    {
59        return m_context;
60    }
61
62    virtual blink::WebGraphicsContext3D* getAWebGraphicsContext3D() const OVERRIDE FINAL;
63
64private:
65    WebGLRenderingContextBase* m_context;
66};
67
68} // namespace WebCore
69
70#endif // WebGLContextObject_h
71