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darling-WebCore/svg/SVGSVGElement.cpp
Thomas A 4d9c0118c0 Update Source To WebCore-7611.3.10.1.3
2023-01-24 16:42:21 -08:00

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/*
* Copyright (C) 2004, 2005, 2006, 2019 Nikolas Zimmermann <zimmermann@kde.org>
* Copyright (C) 2004, 2005, 2006, 2007, 2008, 2010 Rob Buis <buis@kde.org>
* Copyright (C) 2007-2019 Apple Inc. All rights reserved.
* Copyright (C) 2014 Adobe Systems Incorporated. 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 "SVGSVGElement.h"
#include "CSSHelper.h"
#include "DOMMatrix2DInit.h"
#include "DOMWrapperWorld.h"
#include "ElementIterator.h"
#include "EventNames.h"
#include "Frame.h"
#include "FrameSelection.h"
#include "RenderSVGResource.h"
#include "RenderSVGRoot.h"
#include "RenderSVGViewportContainer.h"
#include "RenderView.h"
#include "SMILTimeContainer.h"
#include "SVGAngle.h"
#include "SVGDocumentExtensions.h"
#include "SVGLength.h"
#include "SVGMatrix.h"
#include "SVGNumber.h"
#include "SVGPoint.h"
#include "SVGRect.h"
#include "SVGTransform.h"
#include "SVGViewElement.h"
#include "SVGViewSpec.h"
#include "StaticNodeList.h"
#include <wtf/IsoMallocInlines.h>
namespace WebCore {
WTF_MAKE_ISO_ALLOCATED_IMPL(SVGSVGElement);
inline SVGSVGElement::SVGSVGElement(const QualifiedName& tagName, Document& document)
: SVGGraphicsElement(tagName, document)
, SVGFitToViewBox(this)
, m_timeContainer(SMILTimeContainer::create(*this))
{
ASSERT(hasTagName(SVGNames::svgTag));
document.registerForDocumentSuspensionCallbacks(*this);
static std::once_flag onceFlag;
std::call_once(onceFlag, [] {
PropertyRegistry::registerProperty<SVGNames::xAttr, &SVGSVGElement::m_x>();
PropertyRegistry::registerProperty<SVGNames::yAttr, &SVGSVGElement::m_y>();
PropertyRegistry::registerProperty<SVGNames::widthAttr, &SVGSVGElement::m_width>();
PropertyRegistry::registerProperty<SVGNames::heightAttr, &SVGSVGElement::m_height>();
});
}
Ref<SVGSVGElement> SVGSVGElement::create(const QualifiedName& tagName, Document& document)
{
return adoptRef(*new SVGSVGElement(tagName, document));
}
Ref<SVGSVGElement> SVGSVGElement::create(Document& document)
{
return create(SVGNames::svgTag, document);
}
SVGSVGElement::~SVGSVGElement()
{
if (m_viewSpec)
m_viewSpec->resetContextElement();
document().unregisterForDocumentSuspensionCallbacks(*this);
document().accessSVGExtensions().removeTimeContainer(*this);
}
void SVGSVGElement::didMoveToNewDocument(Document& oldDocument, Document& newDocument)
{
oldDocument.unregisterForDocumentSuspensionCallbacks(*this);
document().registerForDocumentSuspensionCallbacks(*this);
SVGGraphicsElement::didMoveToNewDocument(oldDocument, newDocument);
}
SVGViewSpec& SVGSVGElement::currentView()
{
if (!m_viewSpec)
m_viewSpec = SVGViewSpec::create(*this);
return *m_viewSpec;
}
RefPtr<Frame> SVGSVGElement::frameForCurrentScale() const
{
// The behavior of currentScale() is undefined when we're dealing with non-standalone SVG documents.
// If the document is embedded, the scaling is handled by the host renderer.
if (!isConnected() || !isOutermostSVGSVGElement())
return nullptr;
auto frame = makeRefPtr(document().frame());
return frame && frame->isMainFrame() ? frame : nullptr;
}
float SVGSVGElement::currentScale() const
{
// When asking from inside an embedded SVG document, a scale value of 1 seems reasonable, as it doesn't
// know anything about the parent scale.
auto frame = frameForCurrentScale();
return frame ? frame->pageZoomFactor() : 1;
}
void SVGSVGElement::setCurrentScale(float scale)
{
if (auto frame = frameForCurrentScale())
frame->setPageZoomFactor(scale);
}
void SVGSVGElement::setCurrentTranslate(const FloatPoint& translation)
{
if (m_currentTranslate->value() == translation)
return;
m_currentTranslate->setValue(translation);
updateCurrentTranslate();
}
void SVGSVGElement::updateCurrentTranslate()
{
if (RenderObject* object = renderer())
object->setNeedsLayout();
if (parentNode() == &document() && document().renderView())
document().renderView()->repaint();
}
void SVGSVGElement::parseAttribute(const QualifiedName& name, const AtomString& value)
{
if (!nearestViewportElement() && isConnected()) {
// For these events, the outermost <svg> element works like a <body> element does,
// setting certain event handlers directly on the window object.
if (name == HTMLNames::onunloadAttr) {
document().setWindowAttributeEventListener(eventNames().unloadEvent, name, value, mainThreadNormalWorld());
return;
}
if (name == HTMLNames::onresizeAttr) {
document().setWindowAttributeEventListener(eventNames().resizeEvent, name, value, mainThreadNormalWorld());
return;
}
if (name == HTMLNames::onscrollAttr) {
document().setWindowAttributeEventListener(eventNames().scrollEvent, name, value, mainThreadNormalWorld());
return;
}
if (name == SVGNames::onzoomAttr) {
document().setWindowAttributeEventListener(eventNames().zoomEvent, name, value, mainThreadNormalWorld());
return;
}
if (name == HTMLNames::onabortAttr) {
document().setWindowAttributeEventListener(eventNames().abortEvent, name, value, mainThreadNormalWorld());
return;
}
if (name == HTMLNames::onerrorAttr) {
document().setWindowAttributeEventListener(eventNames().errorEvent, name, value, mainThreadNormalWorld());
return;
}
}
SVGParsingError parseError = NoError;
if (name == SVGNames::xAttr)
m_x->setBaseValInternal(SVGLengthValue::construct(SVGLengthMode::Width, value, parseError));
else if (name == SVGNames::yAttr)
m_y->setBaseValInternal(SVGLengthValue::construct(SVGLengthMode::Height, value, parseError));
else if (name == SVGNames::widthAttr) {
auto length = SVGLengthValue::construct(SVGLengthMode::Width, value, parseError, SVGLengthNegativeValuesMode::Forbid);
if (parseError != NoError || value.isEmpty()) {
// FIXME: This is definitely the correct behavior for a missing/removed attribute.
// Not sure it's correct for the empty string or for something that can't be parsed.
length = SVGLengthValue(SVGLengthMode::Width, "100%"_s);
}
m_width->setBaseValInternal(length);
} else if (name == SVGNames::heightAttr) {
auto length = SVGLengthValue::construct(SVGLengthMode::Height, value, parseError, SVGLengthNegativeValuesMode::Forbid);
if (parseError != NoError || value.isEmpty()) {
// FIXME: This is definitely the correct behavior for a removed attribute.
// Not sure it's correct for the empty string or for something that can't be parsed.
length = SVGLengthValue(SVGLengthMode::Height, "100%"_s);
}
m_height->setBaseValInternal(length);
}
reportAttributeParsingError(parseError, name, value);
SVGGraphicsElement::parseAttribute(name, value);
SVGFitToViewBox::parseAttribute(name, value);
SVGZoomAndPan::parseAttribute(name, value);
}
void SVGSVGElement::svgAttributeChanged(const QualifiedName& attrName)
{
if (PropertyRegistry::isKnownAttribute(attrName)) {
InstanceInvalidationGuard guard(*this);
invalidateSVGPresentationAttributeStyle();
if (auto renderer = this->renderer())
RenderSVGResource::markForLayoutAndParentResourceInvalidation(*renderer);
return;
}
if (SVGFitToViewBox::isKnownAttribute(attrName)) {
if (auto* renderer = this->renderer()) {
renderer->setNeedsTransformUpdate();
RenderSVGResource::markForLayoutAndParentResourceInvalidation(*renderer);
}
return;
}
SVGGraphicsElement::svgAttributeChanged(attrName);
}
Ref<NodeList> SVGSVGElement::collectIntersectionOrEnclosureList(SVGRect& rect, SVGElement* referenceElement, bool (*checkFunction)(SVGElement&, SVGRect&))
{
Vector<Ref<Element>> elements;
for (auto& element : descendantsOfType<SVGElement>(referenceElement ? *referenceElement : *this)) {
if (checkFunction(element, rect))
elements.append(element);
}
return StaticElementList::create(WTFMove(elements));
}
static bool checkIntersectionWithoutUpdatingLayout(SVGElement& element, SVGRect& rect)
{
return RenderSVGModelObject::checkIntersection(element.renderer(), rect.value());
}
static bool checkEnclosureWithoutUpdatingLayout(SVGElement& element, SVGRect& rect)
{
return RenderSVGModelObject::checkEnclosure(element.renderer(), rect.value());
}
Ref<NodeList> SVGSVGElement::getIntersectionList(SVGRect& rect, SVGElement* referenceElement)
{
document().updateLayoutIgnorePendingStylesheets();
return collectIntersectionOrEnclosureList(rect, referenceElement, checkIntersectionWithoutUpdatingLayout);
}
Ref<NodeList> SVGSVGElement::getEnclosureList(SVGRect& rect, SVGElement* referenceElement)
{
document().updateLayoutIgnorePendingStylesheets();
return collectIntersectionOrEnclosureList(rect, referenceElement, checkEnclosureWithoutUpdatingLayout);
}
bool SVGSVGElement::checkIntersection(Ref<SVGElement>&& element, SVGRect& rect)
{
element->document().updateLayoutIgnorePendingStylesheets();
return checkIntersectionWithoutUpdatingLayout(element, rect);
}
bool SVGSVGElement::checkEnclosure(Ref<SVGElement>&& element, SVGRect& rect)
{
element->document().updateLayoutIgnorePendingStylesheets();
return checkEnclosureWithoutUpdatingLayout(element, rect);
}
void SVGSVGElement::deselectAll()
{
if (auto frame = makeRefPtr(document().frame()))
frame->selection().clear();
}
Ref<SVGNumber> SVGSVGElement::createSVGNumber()
{
return SVGNumber::create();
}
Ref<SVGLength> SVGSVGElement::createSVGLength()
{
return SVGLength::create();
}
Ref<SVGAngle> SVGSVGElement::createSVGAngle()
{
return SVGAngle::create();
}
Ref<SVGPoint> SVGSVGElement::createSVGPoint()
{
return SVGPoint::create();
}
Ref<SVGMatrix> SVGSVGElement::createSVGMatrix()
{
return SVGMatrix::create();
}
Ref<SVGRect> SVGSVGElement::createSVGRect()
{
return SVGRect::create();
}
Ref<SVGTransform> SVGSVGElement::createSVGTransform()
{
return SVGTransform::create(SVGTransformValue::SVG_TRANSFORM_MATRIX);
}
Ref<SVGTransform> SVGSVGElement::createSVGTransformFromMatrix(DOMMatrix2DInit&& matrixInit)
{
AffineTransform transform;
if (matrixInit.a.hasValue())
transform.setA(matrixInit.a.value());
if (matrixInit.b.hasValue())
transform.setB(matrixInit.b.value());
if (matrixInit.c.hasValue())
transform.setC(matrixInit.c.value());
if (matrixInit.d.hasValue())
transform.setD(matrixInit.d.value());
if (matrixInit.e.hasValue())
transform.setE(matrixInit.e.value());
if (matrixInit.f.hasValue())
transform.setF(matrixInit.f.value());
return SVGTransform::create(transform);
}
AffineTransform SVGSVGElement::localCoordinateSpaceTransform(SVGLocatable::CTMScope mode) const
{
AffineTransform viewBoxTransform;
if (!hasEmptyViewBox()) {
FloatSize size = currentViewportSize();
viewBoxTransform = viewBoxToViewTransform(size.width(), size.height());
}
AffineTransform transform;
if (!isOutermostSVGSVGElement()) {
SVGLengthContext lengthContext(this);
transform.translate(x().value(lengthContext), y().value(lengthContext));
} else if (mode == SVGLocatable::ScreenScope) {
if (auto* renderer = this->renderer()) {
FloatPoint location;
float zoomFactor = 1;
// At the SVG/HTML boundary (aka RenderSVGRoot), we apply the localToBorderBoxTransform
// to map an element from SVG viewport coordinates to CSS box coordinates.
// RenderSVGRoot's localToAbsolute method expects CSS box coordinates.
// We also need to adjust for the zoom level factored into CSS coordinates (bug #96361).
if (is<RenderSVGRoot>(*renderer)) {
location = downcast<RenderSVGRoot>(*renderer).localToBorderBoxTransform().mapPoint(location);
zoomFactor = 1 / renderer->style().effectiveZoom();
}
// Translate in our CSS parent coordinate space
// FIXME: This doesn't work correctly with CSS transforms.
location = renderer->localToAbsolute(location, UseTransforms);
location.scale(zoomFactor);
// Be careful here! localToBorderBoxTransform() included the x/y offset coming from the viewBoxToViewTransform(),
// so we have to subtract it here (original cause of bug #27183)
transform.translate(location.x() - viewBoxTransform.e(), location.y() - viewBoxTransform.f());
// Respect scroll offset.
if (auto view = makeRefPtr(document().view())) {
LayoutPoint scrollPosition = view->scrollPosition();
scrollPosition.scale(zoomFactor);
transform.translate(-scrollPosition);
}
}
}
return transform.multiply(viewBoxTransform);
}
bool SVGSVGElement::rendererIsNeeded(const RenderStyle& style)
{
if (!isValid())
return false;
// FIXME: We should respect display: none on the documentElement svg element
// but many things in FrameView and SVGImage depend on the RenderSVGRoot when
// they should instead depend on the RenderView.
// https://bugs.webkit.org/show_bug.cgi?id=103493
if (document().documentElement() == this)
return true;
return StyledElement::rendererIsNeeded(style);
}
RenderPtr<RenderElement> SVGSVGElement::createElementRenderer(RenderStyle&& style, const RenderTreePosition&)
{
if (isOutermostSVGSVGElement())
return createRenderer<RenderSVGRoot>(*this, WTFMove(style));
return createRenderer<RenderSVGViewportContainer>(*this, WTFMove(style));
}
Node::InsertedIntoAncestorResult SVGSVGElement::insertedIntoAncestor(InsertionType insertionType, ContainerNode& parentOfInsertedTree)
{
if (insertionType.connectedToDocument) {
document().accessSVGExtensions().addTimeContainer(*this);
if (!document().accessSVGExtensions().areAnimationsPaused())
unpauseAnimations();
// Animations are started at the end of document parsing and after firing the load event,
// but if we miss that train (deferred programmatic element insertion for example) we need
// to initialize the time container here.
if (!document().parsing() && !document().processingLoadEvent() && document().loadEventFinished() && !m_timeContainer->isStarted())
m_timeContainer->begin();
}
return SVGGraphicsElement::insertedIntoAncestor(insertionType, parentOfInsertedTree);
}
void SVGSVGElement::removedFromAncestor(RemovalType removalType, ContainerNode& oldParentOfRemovedTree)
{
if (removalType.disconnectedFromDocument) {
document().accessSVGExtensions().removeTimeContainer(*this);
pauseAnimations();
}
SVGGraphicsElement::removedFromAncestor(removalType, oldParentOfRemovedTree);
}
void SVGSVGElement::pauseAnimations()
{
if (!m_timeContainer->isPaused())
m_timeContainer->pause();
}
void SVGSVGElement::unpauseAnimations()
{
if (m_timeContainer->isPaused())
m_timeContainer->resume();
}
bool SVGSVGElement::animationsPaused() const
{
return m_timeContainer->isPaused();
}
bool SVGSVGElement::hasActiveAnimation() const
{
return m_timeContainer->isActive();
}
float SVGSVGElement::getCurrentTime() const
{
return narrowPrecisionToFloat(m_timeContainer->elapsed().value());
}
void SVGSVGElement::setCurrentTime(float seconds)
{
if (!std::isfinite(seconds))
return;
m_timeContainer->setElapsed(std::max(seconds, 0.0f));
}
bool SVGSVGElement::selfHasRelativeLengths() const
{
return x().isRelative()
|| y().isRelative()
|| width().isRelative()
|| height().isRelative()
|| hasAttribute(SVGNames::viewBoxAttr);
}
FloatRect SVGSVGElement::currentViewBoxRect() const
{
if (m_useCurrentView)
return m_viewSpec ? m_viewSpec->viewBox() : FloatRect();
FloatRect viewBox = this->viewBox();
if (!viewBox.isEmpty())
return viewBox;
if (!is<RenderSVGRoot>(renderer()))
return { };
if (!downcast<RenderSVGRoot>(*renderer()).isEmbeddedThroughSVGImage())
return { };
Length intrinsicWidth = this->intrinsicWidth();
Length intrinsicHeight = this->intrinsicHeight();
if (!intrinsicWidth.isFixed() || !intrinsicHeight.isFixed())
return { };
// If no viewBox is specified but non-relative width/height values, then we
// should always synthesize a viewBox if we're embedded through a SVGImage.
return { 0, 0, floatValueForLength(intrinsicWidth, 0), floatValueForLength(intrinsicHeight, 0) };
}
FloatSize SVGSVGElement::currentViewportSize() const
{
FloatSize viewportSize;
if (renderer()) {
if (is<RenderSVGRoot>(*renderer())) {
auto& root = downcast<RenderSVGRoot>(*renderer());
viewportSize = root.contentBoxRect().size() / root.style().effectiveZoom();
} else
viewportSize = downcast<RenderSVGViewportContainer>(*renderer()).viewport().size();
}
if (!viewportSize.isEmpty())
return viewportSize;
if (!(hasIntrinsicWidth() && hasIntrinsicHeight()))
return { };
return FloatSize(floatValueForLength(intrinsicWidth(), 0), floatValueForLength(intrinsicHeight(), 0));
}
bool SVGSVGElement::hasIntrinsicWidth() const
{
return width().lengthType() != SVGLengthType::Percentage;
}
bool SVGSVGElement::hasIntrinsicHeight() const
{
return height().lengthType() != SVGLengthType::Percentage;
}
Length SVGSVGElement::intrinsicWidth() const
{
if (width().lengthType() == SVGLengthType::Percentage)
return Length(0, Fixed);
SVGLengthContext lengthContext(this);
return Length(width().value(lengthContext), Fixed);
}
Length SVGSVGElement::intrinsicHeight() const
{
if (height().lengthType() == SVGLengthType::Percentage)
return Length(0, Fixed);
SVGLengthContext lengthContext(this);
return Length(height().value(lengthContext), Fixed);
}
AffineTransform SVGSVGElement::viewBoxToViewTransform(float viewWidth, float viewHeight) const
{
if (!m_useCurrentView || !m_viewSpec)
return SVGFitToViewBox::viewBoxToViewTransform(currentViewBoxRect(), preserveAspectRatio(), viewWidth, viewHeight);
AffineTransform transform = SVGFitToViewBox::viewBoxToViewTransform(currentViewBoxRect(), m_viewSpec->preserveAspectRatio(), viewWidth, viewHeight);
transform *= m_viewSpec->transform()->concatenate();
return transform;
}
SVGViewElement* SVGSVGElement::findViewAnchor(const String& fragmentIdentifier) const
{
auto* anchorElement = document().findAnchor(fragmentIdentifier);
return is<SVGViewElement>(anchorElement) ? downcast<SVGViewElement>(anchorElement): nullptr;
}
SVGSVGElement* SVGSVGElement::findRootAnchor(const SVGViewElement* viewElement) const
{
auto* viewportElement = SVGLocatable::nearestViewportElement(viewElement);
return is<SVGSVGElement>(viewportElement) ? downcast<SVGSVGElement>(viewportElement) : nullptr;
}
SVGSVGElement* SVGSVGElement::findRootAnchor(const String& fragmentIdentifier) const
{
if (auto* viewElement = findViewAnchor(fragmentIdentifier))
return findRootAnchor(viewElement);
return nullptr;
}
bool SVGSVGElement::scrollToFragment(const String& fragmentIdentifier)
{
auto renderer = this->renderer();
auto view = m_viewSpec;
if (view)
view->reset();
bool hadUseCurrentView = m_useCurrentView;
m_useCurrentView = false;
if (fragmentIdentifier.startsWith("xpointer(")) {
// FIXME: XPointer references are ignored (https://bugs.webkit.org/show_bug.cgi?id=17491)
if (renderer && hadUseCurrentView)
RenderSVGResource::markForLayoutAndParentResourceInvalidation(*renderer);
return false;
}
if (fragmentIdentifier.startsWith("svgView(")) {
if (!view)
view = &currentView(); // Create the SVGViewSpec.
if (view->parseViewSpec(fragmentIdentifier))
m_useCurrentView = true;
else
view->reset();
if (renderer && (hadUseCurrentView || m_useCurrentView))
RenderSVGResource::markForLayoutAndParentResourceInvalidation(*renderer);
return m_useCurrentView;
}
// Spec: If the SVG fragment identifier addresses a "view" element within an SVG document (e.g., MyDrawing.svg#MyView
// or MyDrawing.svg#xpointer(id('MyView'))) then the closest ancestor "svg" element is displayed in the viewport.
// Any view specification attributes included on the given "view" element override the corresponding view specification
// attributes on the closest ancestor "svg" element.
if (auto* viewElement = findViewAnchor(fragmentIdentifier)) {
if (auto* rootElement = findRootAnchor(viewElement)) {
if (rootElement->m_currentViewElement) {
ASSERT(rootElement->m_currentViewElement->targetElement() == rootElement);
// If the viewElement has changed, remove the link from the SVGViewElement to the previously selected SVGSVGElement.
if (rootElement->m_currentViewElement != viewElement)
rootElement->m_currentViewElement->resetTargetElement();
}
if (rootElement->m_currentViewElement != viewElement) {
rootElement->m_currentViewElement = viewElement;
rootElement->m_currentViewElement->setTargetElement(*rootElement);
}
rootElement->inheritViewAttributes(*viewElement);
if (auto* renderer = rootElement->renderer())
RenderSVGResource::markForLayoutAndParentResourceInvalidation(*renderer);
m_currentViewFragmentIdentifier = fragmentIdentifier;
return true;
}
}
// FIXME: We need to decide which <svg> to focus on, and zoom to it.
// FIXME: We need to actually "highlight" the viewTarget(s).
return false;
}
void SVGSVGElement::resetScrollAnchor()
{
if (!m_useCurrentView && m_currentViewFragmentIdentifier.isEmpty())
return;
if (m_viewSpec)
m_viewSpec->reset();
if (!m_currentViewFragmentIdentifier.isEmpty()) {
if (auto* rootElement = findRootAnchor(m_currentViewFragmentIdentifier)) {
SVGViewSpec& view = rootElement->currentView();
view.setViewBox(viewBox());
view.setPreserveAspectRatio(preserveAspectRatio());
view.setZoomAndPan(zoomAndPan());
m_currentViewFragmentIdentifier = { };
}
}
m_useCurrentView = false;
if (renderer())
RenderSVGResource::markForLayoutAndParentResourceInvalidation(*renderer());
}
void SVGSVGElement::inheritViewAttributes(const SVGViewElement& viewElement)
{
SVGViewSpec& view = currentView();
m_useCurrentView = true;
if (viewElement.hasAttribute(SVGNames::viewBoxAttr))
view.setViewBox(viewElement.viewBox());
else
view.setViewBox(viewBox());
if (viewElement.hasAttribute(SVGNames::preserveAspectRatioAttr))
view.setPreserveAspectRatio(viewElement.preserveAspectRatio());
else
view.setPreserveAspectRatio(preserveAspectRatio());
if (viewElement.hasAttribute(SVGNames::zoomAndPanAttr))
view.setZoomAndPan(viewElement.zoomAndPan());
else
view.setZoomAndPan(zoomAndPan());
}
void SVGSVGElement::prepareForDocumentSuspension()
{
pauseAnimations();
}
void SVGSVGElement::resumeFromDocumentSuspension()
{
unpauseAnimations();
}
// getElementById on SVGSVGElement is restricted to only the child subtree defined by the <svg> element.
// See http://www.w3.org/TR/SVG11/struct.html#InterfaceSVGSVGElement
Element* SVGSVGElement::getElementById(const AtomString& id)
{
if (id.isNull())
return nullptr;
auto element = makeRefPtr(treeScope().getElementById(id));
if (element && element->isDescendantOf(*this))
return element.get();
if (treeScope().containsMultipleElementsWithId(id)) {
for (auto* element : *treeScope().getAllElementsById(id)) {
if (element->isDescendantOf(*this))
return element;
}
}
return nullptr;
}
bool SVGSVGElement::isValid() const
{
return SVGTests::isValid();
}
}
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