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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 "base/memory/scoped_refptr.h"
#include "core/CoreExport.h"
#include "core/css/CSSValue.h"
#include "platform/CrossOriginAttributeValue.h"
#include "platform/loader/fetch/FetchParameters.h"
#include "platform/weborigin/Referrer.h"
namespace blink {
class Document;
class KURL;
class StyleImage;
class ComputedStyle;
class CORE_EXPORT CSSImageValue : public CSSValue {
public:
static CSSImageValue* Create(const KURL& url, StyleImage* image = nullptr) {
return Create(url.GetString(), url, Referrer(), image);
}
static CSSImageValue* Create(const AtomicString& relative_url,
const KURL& absolute_url,
StyleImage* image = nullptr) {
return Create(relative_url, absolute_url, Referrer(), image);
}
static CSSImageValue* Create(const String& raw_value,
const KURL& url,
const Referrer& referrer,
StyleImage* image = nullptr) {
return Create(AtomicString(raw_value), url, referrer, image);
}
static CSSImageValue* Create(const AtomicString& raw_value,
const KURL& url,
const Referrer& referrer,
StyleImage* image = nullptr) {
return new CSSImageValue(raw_value, url, referrer, image);
}
static CSSImageValue* Create(const AtomicString& absolute_url) {
return new CSSImageValue(absolute_url);
}
~CSSImageValue();
bool IsCachePending() const { return !cached_image_; }
StyleImage* CachedImage() const {
DCHECK(!IsCachePending());
return cached_image_.Get();
}
StyleImage* CacheImage(
const Document&,
FetchParameters::PlaceholderImageRequestType,
CrossOriginAttributeValue = kCrossOriginAttributeNotSet);
const String& Url() const { return absolute_url_; }
const String& RelativeUrl() const { return relative_url_; }
const Referrer& GetReferrer() const { return referrer_; }
void ReResolveURL(const Document&) const;
String CustomCSSText() const;
bool HasFailedOrCanceledSubresources() const;
bool Equals(const CSSImageValue&) const;
bool KnownToBeOpaque(const Document&, const ComputedStyle&) const;
CSSImageValue* ValueWithURLMadeAbsolute() const {
return Create(KURL(absolute_url_), cached_image_.Get());
}
CSSImageValue* Clone() const {
return Create(relative_url_, KURL(absolute_url_), cached_image_.Get());
}
void SetInitiator(const AtomicString& name) { initiator_name_ = name; }
void TraceAfterDispatch(blink::Visitor*);
void RestoreCachedResourceIfNeeded(const Document&) const;
private:
CSSImageValue(const AtomicString& raw_value,
const KURL&,
const Referrer&,
StyleImage*);
CSSImageValue(const AtomicString& absolute_url);
AtomicString relative_url_;
Referrer referrer_;
AtomicString initiator_name_;
// Cached image data.
mutable AtomicString absolute_url_;
mutable Member<StyleImage> cached_image_;
};
DEFINE_CSS_VALUE_TYPE_CASTS(CSSImageValue, IsImageValue());
} // namespace blink
#endif // CSSImageValue_h