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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 THIRD_PARTY_BLINK_RENDERER_CORE_CSS_CSS_IMAGE_VALUE_H_
#define THIRD_PARTY_BLINK_RENDERER_CORE_CSS_CSS_IMAGE_VALUE_H_
#include "base/memory/scoped_refptr.h"
#include "third_party/blink/renderer/core/core_export.h"
#include "third_party/blink/renderer/core/css/css_origin_clean.h"
#include "third_party/blink/renderer/core/css/css_value.h"
#include "third_party/blink/renderer/platform/loader/fetch/cross_origin_attribute_value.h"
#include "third_party/blink/renderer/platform/loader/fetch/fetch_parameters.h"
#include "third_party/blink/renderer/platform/weborigin/referrer.h"
#include "third_party/blink/renderer/platform/wtf/casting.h"
namespace blink {
class Document;
class KURL;
class StyleImage;
class ComputedStyle;
class CORE_EXPORT CSSImageValue : public CSSValue {
public:
CSSImageValue(const AtomicString& raw_value,
const KURL&,
const Referrer&,
OriginClean origin_clean,
bool is_ad_related,
StyleImage* image = nullptr);
~CSSImageValue();
bool IsCachePending() const { return !cached_image_; }
StyleImage* CachedImage() const {
DCHECK(!IsCachePending());
return cached_image_.Get();
}
StyleImage* CacheImage(
const Document&,
FetchParameters::ImageRequestBehavior,
CrossOriginAttributeValue = kCrossOriginAttributeNotSet);
const String& Url() const { return absolute_url_; }
const String& RelativeUrl() const { return relative_url_; }
const Referrer& GetReferrer() const { return referrer_; }
const AtomicString& GetInitiator() const { return initiator_name_; }
bool GetIsAdRelated() const { return is_ad_related_; }
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 MakeGarbageCollected<CSSImageValue>(
absolute_url_, KURL(absolute_url_), Referrer(), origin_clean_,
is_ad_related_, cached_image_.Get());
}
CSSImageValue* Clone() const {
return MakeGarbageCollected<CSSImageValue>(
relative_url_, KURL(absolute_url_), Referrer(), origin_clean_,
is_ad_related_, cached_image_.Get());
}
void SetInitiator(const AtomicString& name) { initiator_name_ = name; }
void TraceAfterDispatch(blink::Visitor*) const;
void RestoreCachedResourceIfNeeded(const Document&) const;
private:
AtomicString relative_url_;
Referrer referrer_;
AtomicString initiator_name_;
// Cached image data.
mutable AtomicString absolute_url_;
mutable Member<StyleImage> cached_image_;
// Whether the stylesheet that requested this image is origin-clean:
// https://drafts.csswg.org/cssom-1/#concept-css-style-sheet-origin-clean-flag
const OriginClean origin_clean_;
// Whether this was created by an ad-related CSSParserContext.
const bool is_ad_related_;
};
template <>
struct DowncastTraits<CSSImageValue> {
static bool AllowFrom(const CSSValue& value) { return value.IsImageValue(); }
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_CORE_CSS_CSS_IMAGE_VALUE_H_
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