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/*
Copyright (C) 1998 Lars Knoll (knoll@mpi-hd.mpg.de)
Copyright (C) 2001 Dirk Mueller <mueller@kde.org>
Copyright (C) 2006 Samuel Weinig (sam.weinig@gmail.com)
Copyright (C) 2004, 2005, 2006, 2007, 2008 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.
This class provides all functionality needed for loading images, style sheets and html
pages from the web. It has a memory cache for these objects.
*/
#ifndef CSSStyleSheetResource_h
#define CSSStyleSheetResource_h
#include "core/CoreExport.h"
#include "core/fetch/StyleSheetResource.h"
#include "platform/heap/Handle.h"
namespace blink {
class CSSParserContext;
class FetchRequest;
class ResourceClient;
class ResourceFetcher;
class StyleSheetContents;
class CORE_EXPORT CSSStyleSheetResource final : public StyleSheetResource {
public:
enum class MIMETypeCheck { Strict, Lax };
static PassRefPtrWillBeRawPtr<CSSStyleSheetResource> fetch(FetchRequest&, ResourceFetcher*);
static PassRefPtrWillBeRawPtr<CSSStyleSheetResource> createForTest(const ResourceRequest&, const String& charset);
~CSSStyleSheetResource() override;
DECLARE_VIRTUAL_TRACE();
const String sheetText(MIMETypeCheck = MIMETypeCheck::Strict) const;
void didAddClient(ResourceClient*) override;
PassRefPtrWillBeRawPtr<StyleSheetContents> restoreParsedStyleSheet(const CSSParserContext&);
void saveParsedStyleSheet(PassRefPtrWillBeRawPtr<StyleSheetContents>);
protected:
bool isSafeToUnlock() const override;
void destroyDecodedDataIfPossible() override;
void destroyDecodedDataForFailedRevalidation() override { destroyDecodedDataIfPossible(); }
private:
class CSSStyleSheetResourceFactory : public ResourceFactory {
public:
CSSStyleSheetResourceFactory()
: ResourceFactory(Resource::CSSStyleSheet) { }
PassRefPtrWillBeRawPtr<Resource> create(const ResourceRequest& request, const ResourceLoaderOptions& options, const String& charset) const override
{
return adoptRefWillBeNoop(new CSSStyleSheetResource(request, options, charset));
}
};
CSSStyleSheetResource(const ResourceRequest&, const ResourceLoaderOptions&, const String& charset);
bool canUseSheet(MIMETypeCheck) const;
void removedFromMemoryCache() override;
void checkNotify() override;
String m_decodedSheetText;
RefPtrWillBeMember<StyleSheetContents> m_parsedStyleSheetCache;
};
DEFINE_RESOURCE_TYPE_CASTS(CSSStyleSheet);
} // namespace blink
#endif
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