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/*
* (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 "core/CoreExport.h"
#include "core/css/CSSValue.h"
#include "platform/CrossOriginAttributeValue.h"
#include "platform/weborigin/Referrer.h"
#include "wtf/RefPtr.h"
namespace blink {
class Document;
class KURL;
class StyleImage;
class LayoutObject;
class CORE_EXPORT CSSImageValue : public CSSValue {
public:
static CSSImageValue* create(const KURL& url, StyleImage* image = 0) {
return create(url.getString(), url, image);
}
static CSSImageValue* create(const String& rawValue,
const KURL& url,
StyleImage* image = 0) {
return create(AtomicString(rawValue), url, image);
}
static CSSImageValue* create(const AtomicString& rawValue,
const KURL& url,
StyleImage* image = 0) {
return new CSSImageValue(rawValue, url, image);
}
static CSSImageValue* create(const AtomicString& absoluteURL) {
return new CSSImageValue(absoluteURL);
}
~CSSImageValue();
bool isCachePending() const { return !m_cachedImage; }
StyleImage* cachedImage() const {
ASSERT(!isCachePending());
return m_cachedImage.get();
}
StyleImage* cacheImage(
const Document&,
CrossOriginAttributeValue = CrossOriginAttributeNotSet);
const String& url() const { return m_absoluteURL; }
void setReferrer(const Referrer& referrer) { m_referrer = referrer; }
const Referrer& referrer() const { return m_referrer; }
void reResolveURL(const Document&) const;
String customCSSText() const;
bool hasFailedOrCanceledSubresources() const;
bool equals(const CSSImageValue&) const;
bool knownToBeOpaque(const LayoutObject&) const;
CSSImageValue* valueWithURLMadeAbsolute() const {
return create(KURL(ParsedURLString, m_absoluteURL), m_cachedImage.get());
}
void setInitiator(const AtomicString& name) { m_initiatorName = name; }
DECLARE_TRACE_AFTER_DISPATCH();
void restoreCachedResourceIfNeeded(const Document&) const;
private:
CSSImageValue(const AtomicString& rawValue, const KURL&, StyleImage*);
CSSImageValue(const AtomicString& absoluteURL);
AtomicString m_relativeURL;
Referrer m_referrer;
AtomicString m_initiatorName;
// Cached image data.
mutable AtomicString m_absoluteURL;
mutable Member<StyleImage> m_cachedImage;
};
DEFINE_CSS_VALUE_TYPE_CASTS(CSSImageValue, isImageValue());
} // namespace blink
#endif // CSSImageValue_h
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