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/*
* Copyright (C) 1999 Lars Knoll (knoll@kde.org)
* (C) 1999 Antti Koivisto (koivisto@kde.org)
* (C) 2000 Simon Hausmann <hausmann@kde.org>
* Copyright (C) 2007-2016 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 "Document.h"
#include "HTMLElement.h"
#include "HTMLNames.h"
#include "PrivateClickMeasurement.h"
#include "SharedStringHash.h"
#include "URLDecomposition.h"
#include <wtf/OptionSet.h>
namespace WebCore {
class DOMTokenList;
enum class ReferrerPolicy : uint8_t;
// Link relation bitmask values.
enum class Relation : uint8_t {
NoReferrer = 1 << 0,
NoOpener = 1 << 1,
Opener = 1 << 2,
};
class HTMLAnchorElement : public HTMLElement, public URLDecomposition {
WTF_MAKE_TZONE_OR_ISO_ALLOCATED(HTMLAnchorElement);
WTF_OVERRIDE_DELETE_FOR_CHECKED_PTR(HTMLAnchorElement);
public:
static Ref<HTMLAnchorElement> create(Document&);
static Ref<HTMLAnchorElement> create(const QualifiedName&, Document&);
virtual ~HTMLAnchorElement();
WEBCORE_EXPORT URL href() const;
void setHref(const AtomString&);
const AtomString& name() const;
WEBCORE_EXPORT String origin() const;
WEBCORE_EXPORT void setProtocol(StringView value);
WEBCORE_EXPORT String text();
void setText(String&&);
bool isLiveLink() const;
bool willRespondToMouseClickEventsWithEditability(Editability) const final;
bool hasRel(Relation) const;
inline SharedStringHash visitedLinkHash() const;
WEBCORE_EXPORT DOMTokenList& relList();
#if USE(SYSTEM_PREVIEW)
WEBCORE_EXPORT bool isSystemPreviewLink();
#endif
void setReferrerPolicyForBindings(const AtomString&);
String referrerPolicyForBindings() const;
ReferrerPolicy referrerPolicy() const;
Node::InsertedIntoAncestorResult insertedIntoAncestor(InsertionType, ContainerNode& parentOfInsertedTree) override;
protected:
HTMLAnchorElement(const QualifiedName&, Document&);
void attributeChanged(const QualifiedName&, const AtomString& oldValue, const AtomString& newValue, AttributeModificationReason) override;
private:
bool supportsFocus() const override;
bool isMouseFocusable() const override;
bool isKeyboardFocusable(KeyboardEvent*) const override;
void defaultEventHandler(Event&) final;
void setActive(bool active, Style::InvalidationScope) final;
bool isURLAttribute(const Attribute&) const final;
bool canStartSelection() const final;
AtomString target() const override;
int defaultTabIndex() const final;
bool draggable() const final;
bool isInteractiveContent() const final;
AtomString effectiveTarget() const;
void sendPings(const URL& destinationURL);
std::optional<URL> attributionDestinationURLForPCM() const;
std::optional<RegistrableDomain> mainDocumentRegistrableDomainForPCM() const;
std::optional<PCM::EphemeralNonce> attributionSourceNonceForPCM() const;
std::optional<PrivateClickMeasurement> parsePrivateClickMeasurementForSKAdNetwork(const URL&) const;
std::optional<PrivateClickMeasurement> parsePrivateClickMeasurement(const URL&) const;
void handleClick(Event&);
enum EventType {
MouseEventWithoutShiftKey,
MouseEventWithShiftKey,
NonMouseEvent,
};
static EventType eventType(Event&);
bool treatLinkAsLiveForEventType(EventType) const;
Element* rootEditableElementForSelectionOnMouseDown() const;
void setRootEditableElementForSelectionOnMouseDown(Element*);
void clearRootEditableElementForSelectionOnMouseDown();
URL fullURL() const final { return href(); }
void setFullURL(const URL& fullURL) final { setHref(AtomString { fullURL.string() }); }
bool m_hasRootEditableElementForSelectionOnMouseDown { false };
bool m_wasShiftKeyDownOnMouseDown { false };
OptionSet<Relation> m_linkRelations;
// This is computed only once and must not be affected by subsequent URL changes.
mutable Markable<SharedStringHash, SharedStringHashMarkableTraits> m_storedVisitedLinkHash;
std::unique_ptr<DOMTokenList> m_relList;
};
// Functions shared with the other anchor elements (i.e., SVG).
bool isEnterKeyKeydownEvent(Event&);
bool shouldProhibitLinks(Element*);
} // namespace WebCore
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