/* * Copyright (C) 2004, 2005, 2007, 2008 Nikolas Zimmermann <zimmermann@kde.org> * Copyright (C) 2004, 2005, 2006 Rob Buis <buis@kde.org> * Copyright (C) 2018 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. */ #include "config.h" #include "SVGGElement.h" #include "RenderSVGHiddenContainer.h" #include "RenderSVGResource.h" #include "RenderSVGTransformableContainer.h" #include "SVGNames.h" #include <wtf/IsoMallocInlines.h> #include <wtf/NeverDestroyed.h> namespace WebCore { WTF_MAKE_ISO_ALLOCATED_IMPL(SVGGElement); SVGGElement::SVGGElement(const QualifiedName& tagName, Document& document) : SVGGraphicsElement(tagName, document) { ASSERT(hasTagName(SVGNames::gTag)); } Ref<SVGGElement> SVGGElement::create(const QualifiedName& tagName, Document& document) { return adoptRef(*new SVGGElement(tagName, document)); } Ref<SVGGElement> SVGGElement::create(Document& document) { return create(SVGNames::gTag, document); } RenderPtr<RenderElement> SVGGElement::createElementRenderer(RenderStyle&& style, const RenderTreePosition&) { // SVG 1.1 testsuite explicitly uses constructs like <g display="none"><linearGradient> // We still have to create renderers for the <g> & <linearGradient> element, though the // subtree may be hidden - we only want the resource renderers to exist so they can be // referenced from somewhere else. if (style.display() == DisplayType::None) return createRenderer<RenderSVGHiddenContainer>(*this, WTFMove(style)); return createRenderer<RenderSVGTransformableContainer>(*this, WTFMove(style)); } bool SVGGElement::rendererIsNeeded(const RenderStyle&) { // Unlike SVGElement::rendererIsNeeded(), we still create renderers, even if // display is set to 'none' - which is special to SVG <g> container elements. return parentOrShadowHostElement() && parentOrShadowHostElement()->isSVGElement(); } }