1/*
2 * Copyright (C) 2011 Adobe Systems Incorporated. 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 *
8 * 1. Redistributions of source code must retain the above
9 *    copyright notice, this list of conditions and the following
10 *    disclaimer.
11 * 2. Redistributions in binary form must reproduce the above
12 *    copyright notice, this list of conditions and the following
13 *    disclaimer in the documentation and/or other materials
14 *    provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER “AS IS” AND ANY
17 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
19 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE
20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
21 * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
22 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
23 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
25 * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
26 * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 */
29
30#ifndef WebKitCSSShaderValue_h
31#define WebKitCSSShaderValue_h
32
33#if ENABLE(CSS_SHADERS)
34
35#include "CSSValue.h"
36
37namespace WebCore {
38
39class CachedResourceLoader;
40class KURL;
41class StyleCachedShader;
42class StyleShader;
43
44class WebKitCSSShaderValue : public CSSValue {
45public:
46    static PassRefPtr<WebKitCSSShaderValue> create(const String& url) { return adoptRef(new WebKitCSSShaderValue(url)); }
47    ~WebKitCSSShaderValue();
48
49    const String& format() const { return m_format; }
50    void setFormat(const String& format) { m_format = format; }
51
52    KURL completeURL(CachedResourceLoader*) const;
53    StyleCachedShader* cachedShader(CachedResourceLoader*);
54    StyleShader* cachedOrPendingShader();
55
56    String customCssText() const;
57
58    bool equals(const WebKitCSSShaderValue&) const;
59
60private:
61    WebKitCSSShaderValue(const String& url);
62
63    String m_url;
64    String m_format;
65    RefPtr<StyleShader> m_shader;
66    bool m_accessedShader;
67};
68
69// This will catch anyone doing an unnecessary cast.
70WebKitCSSShaderValue* toWebKitCSSShaderValue(const WebKitCSSShaderValue*);
71
72inline WebKitCSSShaderValue* toWebKitCSSShaderValue(CSSValue* value)
73{
74    return value->isWebKitCSSShaderValue() ? static_cast<WebKitCSSShaderValue*>(value) : 0;
75}
76
77} // namespace WebCore
78
79#endif // ENABLE(CSS_SHADERS)
80
81#endif // WebKitCSSShaderValue_h
82