1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
|
/*
* (C) 1999-2003 Lars Knoll (knoll@kde.org)
* Copyright (C) 2004, 2005, 2006, 2008, 2012 Apple Inc. All rights reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef CSSImageValue_h
#define CSSImageValue_h
#include "CSSValue.h"
#include <wtf/RefPtr.h>
namespace WebCore {
class CachedResourceLoader;
class Element;
class StyleCachedImage;
class StyleImage;
class RenderElement;
struct ResourceLoaderOptions;
class CSSImageValue : public CSSValue {
public:
static Ref<CSSImageValue> create(const String& url) { return adoptRef(*new CSSImageValue(url)); }
static Ref<CSSImageValue> create(const String& url, StyleImage* image) { return adoptRef(*new CSSImageValue(url, image)); }
~CSSImageValue();
StyleCachedImage* cachedImage(CachedResourceLoader&, const ResourceLoaderOptions&);
// Returns a StyleCachedImage if the image is cached already, otherwise a StylePendingImage.
StyleImage* cachedOrPendingImage();
const String& url() const { return m_url; }
String customCSSText() const;
Ref<CSSValue> cloneForCSSOM() const;
bool traverseSubresources(const std::function<bool (const CachedResource&)>& handler) const;
bool equals(const CSSImageValue&) const;
bool knownToBeOpaque(const RenderElement*) const;
void setInitiator(const AtomicString& name) { m_initiatorName = name; }
private:
explicit CSSImageValue(const String& url);
CSSImageValue(const String& url, StyleImage*);
void detachPendingImage();
String m_url;
RefPtr<StyleImage> m_image;
bool m_accessedImage;
AtomicString m_initiatorName;
};
} // namespace WebCore
SPECIALIZE_TYPE_TRAITS_CSS_VALUE(CSSImageValue, isImageValue())
#endif // CSSImageValue_h
|
