1/*
2 * Copyright (C) 2004, 2005, 2008 Nikolas Zimmermann <zimmermann@kde.org>
3 * Copyright (C) 2004, 2005 Rob Buis <buis@kde.org>
4 * Copyright (C) 2007 Eric Seidel <eric@webkit.org>
5 * Copyright (C) 2018-2019 Apple Inc. All rights reserved.
6 *
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Library General Public
9 * License as published by the Free Software Foundation; either
10 * version 2 of the License, or (at your option) any later version.
11 *
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Library General Public License for more details.
16 *
17 * You should have received a copy of the GNU Library General Public License
18 * along with this library; see the file COPYING.LIB. If not, write to
19 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
20 * Boston, MA 02110-1301, USA.
21 */
22
23#pragma once
24
25#include "SVGExternalResourcesRequired.h"
26#include "SVGGraphicsElement.h"
27#include "SVGURIReference.h"
28#include "SharedStringHash.h"
29
30namespace WebCore {
31
32class SVGAElement final : public SVGGraphicsElement, public SVGExternalResourcesRequired, public SVGURIReference {
33 WTF_MAKE_ISO_ALLOCATED(SVGAElement);
34public:
35 static Ref<SVGAElement> create(const QualifiedName&, Document&);
36
37 String target() const final { return m_target->currentValue(); }
38 Ref<SVGAnimatedString>& targetAnimated() { return m_target; }
39
40 SharedStringHash visitedLinkHash() const;
41
42private:
43 SVGAElement(const QualifiedName&, Document&);
44
45 using PropertyRegistry = SVGPropertyOwnerRegistry<SVGAElement, SVGGraphicsElement, SVGExternalResourcesRequired, SVGURIReference>;
46 const SVGPropertyRegistry& propertyRegistry() const final { return m_propertyRegistry; }
47
48 void parseAttribute(const QualifiedName&, const AtomicString&) final;
49 void svgAttributeChanged(const QualifiedName&) final;
50
51 RenderPtr<RenderElement> createElementRenderer(RenderStyle&&, const RenderTreePosition&) final;
52 bool childShouldCreateRenderer(const Node&) const final;
53
54 bool isValid() const final { return SVGTests::isValid(); }
55 String title() const final;
56 void defaultEventHandler(Event&) final;
57
58 bool supportsFocus() const final;
59 bool isMouseFocusable() const final;
60 bool isKeyboardFocusable(KeyboardEvent*) const final;
61 bool isURLAttribute(const Attribute&) const final;
62 bool canStartSelection() const final;
63 int tabIndex() const final;
64
65 bool willRespondToMouseClickEvents() final;
66
67 PropertyRegistry m_propertyRegistry { *this };
68 Ref<SVGAnimatedString> m_target { SVGAnimatedString::create(this) };
69
70 // This is computed only once and must not be affected by subsequent URL changes.
71 mutable Optional<SharedStringHash> m_storedVisitedLinkHash;
72};
73
74} // namespace WebCore
75