StyleSheetContents.h [plain text]
#pragma once
#include "CSSParserMode.h"
#include "CachePolicy.h"
#include "URL.h"
#include <wtf/HashMap.h>
#include <wtf/ListHashSet.h>
#include <wtf/RefCounted.h>
#include <wtf/Vector.h>
#include <wtf/WeakPtr.h>
#include <wtf/text/AtomicStringHash.h>
#include <wtf/text/TextPosition.h>
namespace WebCore {
class CSSStyleSheet;
class CachedCSSStyleSheet;
class CachedResource;
class Document;
class Node;
class SecurityOrigin;
class StyleRuleBase;
class StyleRuleImport;
class StyleRuleNamespace;
class StyleSheetContents final : public RefCounted<StyleSheetContents> {
public:
static Ref<StyleSheetContents> create(const CSSParserContext& context = CSSParserContext(HTMLStandardMode))
{
return adoptRef(*new StyleSheetContents(0, String(), context));
}
static Ref<StyleSheetContents> create(const String& originalURL, const CSSParserContext& context)
{
return adoptRef(*new StyleSheetContents(0, originalURL, context));
}
static Ref<StyleSheetContents> create(StyleRuleImport* ownerRule, const String& originalURL, const CSSParserContext& context)
{
return adoptRef(*new StyleSheetContents(ownerRule, originalURL, context));
}
WEBCORE_EXPORT ~StyleSheetContents();
const CSSParserContext& parserContext() const { return m_parserContext; }
const AtomicString& defaultNamespace() { return m_defaultNamespace; }
const AtomicString& namespaceURIFromPrefix(const AtomicString& prefix);
void parseAuthorStyleSheet(const CachedCSSStyleSheet*, const SecurityOrigin*);
WEBCORE_EXPORT bool parseString(const String&);
bool isCacheable() const;
bool isLoading() const;
bool subresourcesAllowReuse(CachePolicy) const;
WEBCORE_EXPORT bool isLoadingSubresources() const;
void checkLoaded();
void startLoadingDynamicSheet();
StyleSheetContents* rootStyleSheet() const;
Node* singleOwnerNode() const;
Document* singleOwnerDocument() const;
const String& charset() const { return m_parserContext.charset; }
bool loadCompleted() const { return m_loadCompleted; }
URL completeURL(const String& url) const;
bool traverseSubresources(const std::function<bool (const CachedResource&)>& handler) const;
void setIsUserStyleSheet(bool b) { m_isUserStyleSheet = b; }
bool isUserStyleSheet() const { return m_isUserStyleSheet; }
void setHasSyntacticallyValidCSSHeader(bool b) { m_hasSyntacticallyValidCSSHeader = b; }
bool hasSyntacticallyValidCSSHeader() const { return m_hasSyntacticallyValidCSSHeader; }
void parserAddNamespace(const AtomicString& prefix, const AtomicString& uri);
void parserAppendRule(Ref<StyleRuleBase>&&);
void parserSetEncodingFromCharsetRule(const String& encoding);
void parserSetUsesStyleBasedEditability() { m_usesStyleBasedEditability = true; }
void clearRules();
String encodingFromCharsetRule() const { return m_encodingFromCharsetRule; }
const Vector<RefPtr<StyleRuleBase>>& childRules() const { return m_childRules; }
const Vector<RefPtr<StyleRuleImport>>& importRules() const { return m_importRules; }
const Vector<RefPtr<StyleRuleNamespace>>& namespaceRules() const { return m_namespaceRules; }
void notifyLoadedSheet(const CachedCSSStyleSheet*);
StyleSheetContents* parentStyleSheet() const;
StyleRuleImport* ownerRule() const { return m_ownerRule; }
void clearOwnerRule() { m_ownerRule = 0; }
String originalURL() const { return m_originalURL; }
const URL& baseURL() const { return m_parserContext.baseURL; }
unsigned ruleCount() const;
StyleRuleBase* ruleAt(unsigned index) const;
bool usesStyleBasedEditability() const { return m_usesStyleBasedEditability; }
unsigned estimatedSizeInBytes() const;
bool wrapperInsertRule(Ref<StyleRuleBase>&&, unsigned index);
void wrapperDeleteRule(unsigned index);
Ref<StyleSheetContents> copy() const { return adoptRef(*new StyleSheetContents(*this)); }
void registerClient(CSSStyleSheet*);
void unregisterClient(CSSStyleSheet*);
bool hasOneClient() { return m_clients.size() == 1; }
bool isMutable() const { return m_isMutable; }
void setMutable() { m_isMutable = true; }
bool isInMemoryCache() const { return m_inMemoryCacheCount; }
void addedToMemoryCache();
void removedFromMemoryCache();
void shrinkToFit();
WeakPtr<StyleSheetContents> createWeakPtr() { return m_weakPtrFactory.createWeakPtr(); }
private:
WEBCORE_EXPORT StyleSheetContents(StyleRuleImport* ownerRule, const String& originalURL, const CSSParserContext&);
StyleSheetContents(const StyleSheetContents&);
void clearCharsetRule();
StyleRuleImport* m_ownerRule;
String m_originalURL;
String m_encodingFromCharsetRule;
Vector<RefPtr<StyleRuleImport>> m_importRules;
Vector<RefPtr<StyleRuleNamespace>> m_namespaceRules;
Vector<RefPtr<StyleRuleBase>> m_childRules;
typedef HashMap<AtomicString, AtomicString> PrefixNamespaceURIMap;
PrefixNamespaceURIMap m_namespaces;
AtomicString m_defaultNamespace;
bool m_isUserStyleSheet;
bool m_loadCompleted { false };
bool m_hasSyntacticallyValidCSSHeader { true };
bool m_didLoadErrorOccur { false };
bool m_usesStyleBasedEditability { false };
bool m_isMutable { false };
unsigned m_inMemoryCacheCount { 0 };
CSSParserContext m_parserContext;
Vector<CSSStyleSheet*> m_clients;
WeakPtrFactory<StyleSheetContents> m_weakPtrFactory { this };
};
}