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) 2018-2019 Apple Inc. All rights reserved.
5 *
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Library General Public
8 * License as published by the Free Software Foundation; either
9 * version 2 of the License, or (at your option) any later version.
10 *
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Library General Public License for more details.
15 *
16 * You should have received a copy of the GNU Library General Public License
17 * along with this library; see the file COPYING.LIB. If not, write to
18 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
19 * Boston, MA 02110-1301, USA.
20 */
21
22#pragma once
23
24#include "QualifiedName.h"
25#include "SVGPropertyOwnerRegistry.h"
26#include <wtf/HashSet.h>
27
28namespace WebCore {
29
30class SVGElement;
31
32// Notes on a SVG 1.1 spec discrepancy:
33// The SVG DOM defines the attribute externalResourcesRequired as being of type SVGAnimatedBoolean, whereas the
34// SVG language definition says that externalResourcesRequired is not animated. Because the SVG language definition
35// states that externalResourcesRequired cannot be animated, the animVal will always be the same as the baseVal.
36// FIXME: When implementing animVal support, make sure that animVal==baseVal for externalResourcesRequired
37class SVGExternalResourcesRequired {
38 WTF_MAKE_NONCOPYABLE(SVGExternalResourcesRequired);
39public:
40 virtual ~SVGExternalResourcesRequired() = default;
41
42 void parseAttribute(const QualifiedName&, const AtomicString&);
43 void svgAttributeChanged(const QualifiedName&);
44
45 static void addSupportedAttributes(HashSet<QualifiedName>&);
46
47 using PropertyRegistry = SVGPropertyOwnerRegistry<SVGExternalResourcesRequired>;
48
49 bool externalResourcesRequired() const { return m_externalResourcesRequired->currentValue(); }
50 SVGAnimatedBoolean& externalResourcesRequiredAnimated() { return m_externalResourcesRequired; }
51
52protected:
53 SVGExternalResourcesRequired(SVGElement* contextElement);
54
55 static bool isKnownAttribute(const QualifiedName& attributeName) { return PropertyRegistry::isKnownAttribute(attributeName); }
56
57 virtual void setHaveFiredLoadEvent(bool) { }
58 virtual bool isParserInserted() const { return false; }
59 virtual bool haveFiredLoadEvent() const { return false; }
60
61 void dispatchLoadEvent();
62 void insertedIntoDocument();
63 void finishParsingChildren();
64 bool haveLoadedRequiredResources() const;
65
66private:
67 SVGElement& m_contextElement;
68 Ref<SVGAnimatedBoolean> m_externalResourcesRequired;
69};
70
71} // namespace WebCore
72