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/*
* (C) 1999-2003 Lars Knoll (knoll@kde.org)
* (C) 2002-2003 Dirk Mueller (mueller@kde.org)
* Copyright (C) 2002, 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 StyleRuleImport_h
#define StyleRuleImport_h
#include "core/css/StyleRule.h"
#include "core/loader/resource/StyleSheetResourceClient.h"
#include "platform/heap/Handle.h"
namespace blink {
class CSSStyleSheetResource;
class MediaQuerySet;
class StyleSheetContents;
class StyleRuleImport : public StyleRuleBase {
USING_PRE_FINALIZER(StyleRuleImport, dispose);
public:
static StyleRuleImport* create(const String& href, MediaQuerySet*);
~StyleRuleImport();
StyleSheetContents* parentStyleSheet() const { return m_parentStyleSheet; }
void setParentStyleSheet(StyleSheetContents* sheet) {
ASSERT(sheet);
m_parentStyleSheet = sheet;
}
void clearParentStyleSheet() { m_parentStyleSheet = nullptr; }
String href() const { return m_strHref; }
StyleSheetContents* styleSheet() const { return m_styleSheet.get(); }
bool isLoading() const;
MediaQuerySet* mediaQueries() { return m_mediaQueries.get(); }
void requestStyleSheet();
DECLARE_TRACE_AFTER_DISPATCH();
private:
// FIXME: inherit from StyleSheetResourceClient directly to eliminate back
// pointer, as there are no space savings in this.
// NOTE: We put the StyleSheetResourceClient in a member instead of inheriting
// from it to avoid adding a vptr to StyleRuleImport.
class ImportedStyleSheetClient final
: public GarbageCollectedFinalized<ImportedStyleSheetClient>,
public StyleSheetResourceClient {
USING_GARBAGE_COLLECTED_MIXIN(ImportedStyleSheetClient);
public:
ImportedStyleSheetClient(StyleRuleImport* ownerRule)
: m_ownerRule(ownerRule) {}
~ImportedStyleSheetClient() override {}
void setCSSStyleSheet(const String& href,
const KURL& baseURL,
const String& charset,
const CSSStyleSheetResource* sheet) override {
m_ownerRule->setCSSStyleSheet(href, baseURL, charset, sheet);
}
String debugName() const override { return "ImportedStyleSheetClient"; }
DEFINE_INLINE_TRACE() {
visitor->trace(m_ownerRule);
StyleSheetResourceClient::trace(visitor);
}
private:
Member<StyleRuleImport> m_ownerRule;
};
void setCSSStyleSheet(const String& href,
const KURL& baseURL,
const String& charset,
const CSSStyleSheetResource*);
StyleRuleImport(const String& href, MediaQuerySet*);
void dispose();
Member<StyleSheetContents> m_parentStyleSheet;
Member<ImportedStyleSheetClient> m_styleSheetClient;
String m_strHref;
Member<MediaQuerySet> m_mediaQueries;
Member<StyleSheetContents> m_styleSheet;
Member<CSSStyleSheetResource> m_resource;
bool m_loading;
};
DEFINE_STYLE_RULE_TYPE_CASTS(Import);
} // namespace blink
#endif
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