157 lines
5.0 KiB
C++
157 lines
5.0 KiB
C++
/*
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* Copyright (C) 1999 Lars Knoll (knoll@kde.org)
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* (C) 1999 Antti Koivisto (koivisto@kde.org)
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* Copyright (C) 2003-2017 Apple Inc. All rights reserved.
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* Copyright (C) 2011 Google Inc. All rights reserved.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public License
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* along with this library; see the file COPYING.LIB. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*
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*/
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#pragma once
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#include "CSSStyleSheet.h"
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#include "CachedStyleSheetClient.h"
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#include "CachedResourceHandle.h"
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#include "DOMTokenList.h"
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#include "HTMLElement.h"
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#include "LinkLoader.h"
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#include "LinkLoaderClient.h"
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#include "LinkRelAttribute.h"
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namespace WebCore {
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class DOMTokenList;
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class HTMLLinkElement;
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class Page;
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struct MediaQueryParserContext;
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template<typename T> class EventSender;
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using LinkEventSender = EventSender<HTMLLinkElement>;
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class HTMLLinkElement final : public HTMLElement, public CachedStyleSheetClient, public LinkLoaderClient {
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WTF_MAKE_ISO_ALLOCATED(HTMLLinkElement);
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public:
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static Ref<HTMLLinkElement> create(const QualifiedName&, Document&, bool createdByParser);
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virtual ~HTMLLinkElement();
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URL href() const;
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WEBCORE_EXPORT const AtomString& rel() const;
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String target() const final;
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const AtomString& type() const;
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std::optional<LinkIconType> iconType() const;
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CSSStyleSheet* sheet() const { return m_sheet.get(); }
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bool styleSheetIsLoading() const;
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bool isDisabled() const { return m_disabledState == Disabled; }
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bool isEnabledViaScript() const { return m_disabledState == EnabledViaScript; }
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DOMTokenList& sizes();
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WEBCORE_EXPORT void setCrossOrigin(const AtomString&);
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WEBCORE_EXPORT String crossOrigin() const;
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WEBCORE_EXPORT void setAs(const AtomString&);
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WEBCORE_EXPORT String as() const;
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void dispatchPendingEvent(LinkEventSender*);
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static void dispatchPendingLoadEvents(Page*);
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WEBCORE_EXPORT DOMTokenList& relList();
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#if ENABLE(APPLICATION_MANIFEST)
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bool isApplicationManifest() const { return m_relAttribute.isApplicationManifest; }
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#endif
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void allowPrefetchLoadAndErrorForTesting() { m_allowPrefetchLoadAndErrorForTesting = true; }
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void setReferrerPolicyForBindings(const AtomString&);
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String referrerPolicyForBindings() const;
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ReferrerPolicy referrerPolicy() const;
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private:
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void parseAttribute(const QualifiedName&, const AtomString&) final;
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bool shouldLoadLink() final;
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void process();
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static void processCallback(Node*);
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void clearSheet();
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InsertedIntoAncestorResult insertedIntoAncestor(InsertionType, ContainerNode&) final;
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void didFinishInsertingNode() final;
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void removedFromAncestor(RemovalType, ContainerNode&) final;
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void initializeStyleSheet(Ref<StyleSheetContents>&&, const CachedCSSStyleSheet&, MediaQueryParserContext);
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// from CachedResourceClient
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void setCSSStyleSheet(const String& href, const URL& baseURL, const String& charset, const CachedCSSStyleSheet*) final;
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bool sheetLoaded() final;
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void notifyLoadedSheetAndAllCriticalSubresources(bool errorOccurred) final;
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void startLoadingDynamicSheet() final;
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void linkLoaded() final;
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void linkLoadingErrored() final;
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bool isAlternate() const { return m_disabledState == Unset && m_relAttribute.isAlternate; }
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void setDisabledState(bool);
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bool isURLAttribute(const Attribute&) const final;
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HTMLLinkElement(const QualifiedName&, Document&, bool createdByParser);
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void addSubresourceAttributeURLs(ListHashSet<URL>&) const final;
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void finishParsingChildren() final;
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String debugDescription() const final;
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enum PendingSheetType : uint8_t { Unknown, ActiveSheet, InactiveSheet };
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void addPendingSheet(PendingSheetType);
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void removePendingSheet();
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LinkLoader m_linkLoader;
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Style::Scope* m_styleScope { nullptr };
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CachedResourceHandle<CachedCSSStyleSheet> m_cachedSheet;
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RefPtr<CSSStyleSheet> m_sheet;
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enum DisabledState : uint8_t {
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Unset,
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EnabledViaScript,
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Disabled
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};
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String m_type;
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String m_media;
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String m_integrityMetadataForPendingSheetRequest;
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std::unique_ptr<DOMTokenList> m_sizes;
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std::unique_ptr<DOMTokenList> m_relList;
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DisabledState m_disabledState;
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LinkRelAttribute m_relAttribute;
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bool m_loading : 1;
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bool m_createdByParser : 1;
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bool m_firedLoad : 1;
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bool m_loadedResource : 1;
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bool m_isHandlingBeforeLoad : 1;
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bool m_allowPrefetchLoadAndErrorForTesting : 1;
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PendingSheetType m_pendingSheetType;
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};
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}
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