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/*
* (C) 1999-2003 Lars Knoll (knoll@kde.org)
* Copyright (C) 2004, 2006, 2007, 2008, 2009, 2010, 2012, 2013 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.
*/
#pragma once
#include "CSSRuleList.h"
#include "CommonAtomStrings.h"
#include "ExceptionOr.h"
#include "StyleSheet.h"
#include <memory>
#include <wtf/Noncopyable.h>
#include <wtf/TypeCasts.h>
#include <wtf/WeakPtr.h>
#include <wtf/text/AtomStringHash.h>
#include <wtf/text/TextPosition.h>
namespace WebCore {
class CSSImportRule;
class CSSParser;
class CSSRule;
class CSSStyleSheet;
class CachedCSSStyleSheet;
class Document;
class Element;
class MediaQuerySet;
class StyleRuleKeyframes;
class StyleSheetContents;
namespace Style {
class Scope;
}
class CSSStyleSheet final : public StyleSheet {
public:
static Ref<CSSStyleSheet> create(Ref<StyleSheetContents>&&, CSSImportRule* ownerRule = 0);
static Ref<CSSStyleSheet> create(Ref<StyleSheetContents>&&, Node& ownerNode, const std::optional<bool>& isOriginClean = std::nullopt);
static Ref<CSSStyleSheet> createInline(Ref<StyleSheetContents>&&, Element& owner, const TextPosition& startPosition);
virtual ~CSSStyleSheet();
CSSStyleSheet* parentStyleSheet() const final;
Node* ownerNode() const final { return m_ownerNode; }
MediaList* media() const final;
String href() const final;
String title() const final { return !m_title.isEmpty() ? m_title : String(); }
bool disabled() const final { return m_isDisabled; }
void setDisabled(bool) final;
WEBCORE_EXPORT RefPtr<CSSRuleList> cssRules();
ExceptionOr<Ref<CSSRuleList>> cssRulesForBindings();
ExceptionOr<Ref<CSSRuleList>> rules() { return this->cssRulesForBindings(); }
WEBCORE_EXPORT ExceptionOr<unsigned> insertRule(const String& rule, unsigned index);
WEBCORE_EXPORT ExceptionOr<void> deleteRule(unsigned index);
WEBCORE_EXPORT ExceptionOr<int> addRule(const String& selector, const String& style, std::optional<unsigned> index);
ExceptionOr<void> removeRule(unsigned index) { return deleteRule(index); }
// For CSSRuleList.
unsigned length() const;
CSSRule* item(unsigned index);
void clearOwnerNode() final;
CSSImportRule* ownerRule() const final { return m_ownerRule; }
URL baseURL() const final;
bool isLoading() const final;
void clearOwnerRule() { m_ownerRule = 0; }
Document* ownerDocument() const;
CSSStyleSheet& rootStyleSheet();
const CSSStyleSheet& rootStyleSheet() const;
Style::Scope* styleScope();
MediaQuerySet* mediaQueries() const { return m_mediaQueries.get(); }
void setMediaQueries(Ref<MediaQuerySet>&&);
void setTitle(const String& title) { m_title = title; }
bool hadRulesMutation() const { return m_mutatedRules; }
void clearHadRulesMutation() { m_mutatedRules = false; }
enum RuleMutationType { OtherMutation, RuleInsertion, KeyframesRuleMutation };
enum WhetherContentsWereClonedForMutation { ContentsWereNotClonedForMutation = 0, ContentsWereClonedForMutation };
class RuleMutationScope {
WTF_MAKE_NONCOPYABLE(RuleMutationScope);
public:
RuleMutationScope(CSSStyleSheet*, RuleMutationType = OtherMutation, StyleRuleKeyframes* insertedKeyframesRule = nullptr);
RuleMutationScope(CSSRule*);
~RuleMutationScope();
private:
CSSStyleSheet* m_styleSheet;
RuleMutationType m_mutationType;
WhetherContentsWereClonedForMutation m_contentsWereClonedForMutation;
RefPtr<StyleRuleKeyframes> m_insertedKeyframesRule;
String m_modifiedKeyframesRuleName;
};
WhetherContentsWereClonedForMutation willMutateRules();
void didMutateRules(RuleMutationType, WhetherContentsWereClonedForMutation, StyleRuleKeyframes* insertedKeyframesRule, const String& modifiedKeyframesRuleName);
void didMutateRuleFromCSSStyleDeclaration();
void didMutate();
void clearChildRuleCSSOMWrappers();
void reattachChildRuleCSSOMWrappers();
StyleSheetContents& contents() { return m_contents; }
bool isInline() const { return m_isInlineStylesheet; }
TextPosition startPosition() const { return m_startPosition; }
void detachFromDocument() { m_ownerNode = nullptr; }
bool canAccessRules() const;
String debugDescription() const final;
private:
CSSStyleSheet(Ref<StyleSheetContents>&&, CSSImportRule* ownerRule);
CSSStyleSheet(Ref<StyleSheetContents>&&, Node* ownerNode, const TextPosition& startPosition, bool isInlineStylesheet);
CSSStyleSheet(Ref<StyleSheetContents>&&, Node& ownerNode, const TextPosition& startPosition, bool isInlineStylesheet, const std::optional<bool>&);
bool isCSSStyleSheet() const final { return true; }
String type() const final { return cssContentTypeAtom(); }
Ref<StyleSheetContents> m_contents;
bool m_isInlineStylesheet { false };
bool m_isDisabled { false };
bool m_mutatedRules { false };
std::optional<bool> m_isOriginClean;
String m_title;
RefPtr<MediaQuerySet> m_mediaQueries;
WeakPtr<Style::Scope> m_styleScope;
Node* m_ownerNode { nullptr };
CSSImportRule* m_ownerRule { nullptr };
TextPosition m_startPosition;
mutable RefPtr<MediaList> m_mediaCSSOMWrapper;
mutable Vector<RefPtr<CSSRule>> m_childRuleCSSOMWrappers;
mutable std::unique_ptr<CSSRuleList> m_ruleListCSSOMWrapper;
};
} // namespace WebCore
SPECIALIZE_TYPE_TRAITS_BEGIN(WebCore::CSSStyleSheet)
static bool isType(const WebCore::StyleSheet& styleSheet) { return styleSheet.isCSSStyleSheet(); }
SPECIALIZE_TYPE_TRAITS_END()
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