1/*
2 * Copyright (C) 2004, 2005, 2008 Nikolas Zimmermann <zimmermann@kde.org>
3 * Copyright (C) 2004, 2005, 2006, 2007 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 "SVGElement.h"
25#include "SVGTests.h"
26#include "SVGTransformable.h"
27
28namespace WebCore {
29
30class AffineTransform;
31class Path;
32class SVGRect;
33class SVGMatrix;
34
35class SVGGraphicsElement : public SVGElement, public SVGTransformable, public SVGTests {
36 WTF_MAKE_ISO_ALLOCATED(SVGGraphicsElement);
37public:
38 virtual ~SVGGraphicsElement();
39
40 Ref<SVGMatrix> getCTMForBindings();
41 AffineTransform getCTM(StyleUpdateStrategy = AllowStyleUpdate) override;
42
43 Ref<SVGMatrix> getScreenCTMForBindings();
44 AffineTransform getScreenCTM(StyleUpdateStrategy = AllowStyleUpdate) override;
45
46 SVGElement* nearestViewportElement() const override;
47 SVGElement* farthestViewportElement() const override;
48
49 AffineTransform localCoordinateSpaceTransform(SVGLocatable::CTMScope mode) const override { return SVGTransformable::localCoordinateSpaceTransform(mode); }
50 AffineTransform animatedLocalTransform() const override;
51 AffineTransform* supplementalTransform() override;
52
53 Ref<SVGRect> getBBoxForBindings();
54 FloatRect getBBox(StyleUpdateStrategy = AllowStyleUpdate) override;
55
56 bool shouldIsolateBlending() const { return m_shouldIsolateBlending; }
57 void setShouldIsolateBlending(bool isolate) { m_shouldIsolateBlending = isolate; }
58
59 // "base class" methods for all the elements which render as paths
60 virtual Path toClipPath();
61 RenderPtr<RenderElement> createElementRenderer(RenderStyle&&, const RenderTreePosition&) override;
62
63 size_t approximateMemoryCost() const override { return sizeof(*this); }
64
65 using PropertyRegistry = SVGPropertyOwnerRegistry<SVGGraphicsElement, SVGElement, SVGTests>;
66
67 const SVGTransformList& transform() const { return m_transform->currentValue(); }
68 SVGAnimatedTransformList& transformAnimated() { return m_transform; }
69
70protected:
71 SVGGraphicsElement(const QualifiedName&, Document&);
72
73 bool supportsFocus() const override { return Element::supportsFocus() || hasFocusEventListeners(); }
74
75 void parseAttribute(const QualifiedName&, const AtomicString&) override;
76 void svgAttributeChanged(const QualifiedName&) override;
77
78private:
79 bool isSVGGraphicsElement() const override { return true; }
80
81 // Used by <animateMotion>
82 std::unique_ptr<AffineTransform> m_supplementalTransform;
83
84 // Used to isolate blend operations caused by masking.
85 bool m_shouldIsolateBlending;
86
87 Ref<SVGAnimatedTransformList> m_transform { SVGAnimatedTransformList::create(this) };
88};
89
90} // namespace WebCore
91
92SPECIALIZE_TYPE_TRAITS_BEGIN(WebCore::SVGGraphicsElement)
93 static bool isType(const WebCore::SVGElement& element) { return element.isSVGGraphicsElement(); }
94 static bool isType(const WebCore::Node& node) { return is<WebCore::SVGElement>(node) && isType(downcast<WebCore::SVGElement>(node)); }
95SPECIALIZE_TYPE_TRAITS_END()
96