SVGPatternElement.cpp [plain text]
#include "config.h"
#include "SVGPatternElement.h"
#include "AffineTransform.h"
#include "Attribute.h"
#include "Document.h"
#include "FloatConversion.h"
#include "GraphicsContext.h"
#include "ImageBuffer.h"
#include "PatternAttributes.h"
#include "RenderSVGContainer.h"
#include "RenderSVGResourcePattern.h"
#include "SVGElementInstance.h"
#include "SVGFitToViewBox.h"
#include "SVGGraphicsElement.h"
#include "SVGNames.h"
#include "SVGRenderSupport.h"
#include "SVGSVGElement.h"
#include "SVGTransformable.h"
#include "XLinkNames.h"
#include <wtf/NeverDestroyed.h>
namespace WebCore {
DEFINE_ANIMATED_LENGTH(SVGPatternElement, SVGNames::xAttr, X, x)
DEFINE_ANIMATED_LENGTH(SVGPatternElement, SVGNames::yAttr, Y, y)
DEFINE_ANIMATED_LENGTH(SVGPatternElement, SVGNames::widthAttr, Width, width)
DEFINE_ANIMATED_LENGTH(SVGPatternElement, SVGNames::heightAttr, Height, height)
DEFINE_ANIMATED_ENUMERATION(SVGPatternElement, SVGNames::patternUnitsAttr, PatternUnits, patternUnits, SVGUnitTypes::SVGUnitType)
DEFINE_ANIMATED_ENUMERATION(SVGPatternElement, SVGNames::patternContentUnitsAttr, PatternContentUnits, patternContentUnits, SVGUnitTypes::SVGUnitType)
DEFINE_ANIMATED_TRANSFORM_LIST(SVGPatternElement, SVGNames::patternTransformAttr, PatternTransform, patternTransform)
DEFINE_ANIMATED_STRING(SVGPatternElement, XLinkNames::hrefAttr, Href, href)
DEFINE_ANIMATED_BOOLEAN(SVGPatternElement, SVGNames::externalResourcesRequiredAttr, ExternalResourcesRequired, externalResourcesRequired)
DEFINE_ANIMATED_RECT(SVGPatternElement, SVGNames::viewBoxAttr, ViewBox, viewBox)
DEFINE_ANIMATED_PRESERVEASPECTRATIO(SVGPatternElement, SVGNames::preserveAspectRatioAttr, PreserveAspectRatio, preserveAspectRatio)
BEGIN_REGISTER_ANIMATED_PROPERTIES(SVGPatternElement)
REGISTER_LOCAL_ANIMATED_PROPERTY(x)
REGISTER_LOCAL_ANIMATED_PROPERTY(y)
REGISTER_LOCAL_ANIMATED_PROPERTY(width)
REGISTER_LOCAL_ANIMATED_PROPERTY(height)
REGISTER_LOCAL_ANIMATED_PROPERTY(patternUnits)
REGISTER_LOCAL_ANIMATED_PROPERTY(patternContentUnits)
REGISTER_LOCAL_ANIMATED_PROPERTY(patternTransform)
REGISTER_LOCAL_ANIMATED_PROPERTY(href)
REGISTER_LOCAL_ANIMATED_PROPERTY(externalResourcesRequired)
REGISTER_LOCAL_ANIMATED_PROPERTY(viewBox)
REGISTER_LOCAL_ANIMATED_PROPERTY(preserveAspectRatio)
REGISTER_PARENT_ANIMATED_PROPERTIES(SVGElement)
REGISTER_PARENT_ANIMATED_PROPERTIES(SVGTests)
END_REGISTER_ANIMATED_PROPERTIES
inline SVGPatternElement::SVGPatternElement(const QualifiedName& tagName, Document& document)
: SVGElement(tagName, document)
, m_x(LengthModeWidth)
, m_y(LengthModeHeight)
, m_width(LengthModeWidth)
, m_height(LengthModeHeight)
, m_patternUnits(SVGUnitTypes::SVG_UNIT_TYPE_OBJECTBOUNDINGBOX)
, m_patternContentUnits(SVGUnitTypes::SVG_UNIT_TYPE_USERSPACEONUSE)
{
ASSERT(hasTagName(SVGNames::patternTag));
registerAnimatedPropertiesForSVGPatternElement();
}
PassRefPtr<SVGPatternElement> SVGPatternElement::create(const QualifiedName& tagName, Document& document)
{
return adoptRef(new SVGPatternElement(tagName, document));
}
bool SVGPatternElement::isSupportedAttribute(const QualifiedName& attrName)
{
static NeverDestroyed<HashSet<QualifiedName>> supportedAttributes;
if (supportedAttributes.get().isEmpty()) {
SVGURIReference::addSupportedAttributes(supportedAttributes);
SVGTests::addSupportedAttributes(supportedAttributes);
SVGLangSpace::addSupportedAttributes(supportedAttributes);
SVGExternalResourcesRequired::addSupportedAttributes(supportedAttributes);
SVGFitToViewBox::addSupportedAttributes(supportedAttributes);
supportedAttributes.get().add(SVGNames::patternUnitsAttr);
supportedAttributes.get().add(SVGNames::patternContentUnitsAttr);
supportedAttributes.get().add(SVGNames::patternTransformAttr);
supportedAttributes.get().add(SVGNames::xAttr);
supportedAttributes.get().add(SVGNames::yAttr);
supportedAttributes.get().add(SVGNames::widthAttr);
supportedAttributes.get().add(SVGNames::heightAttr);
}
return supportedAttributes.get().contains<SVGAttributeHashTranslator>(attrName);
}
void SVGPatternElement::parseAttribute(const QualifiedName& name, const AtomicString& value)
{
SVGParsingError parseError = NoError;
if (!isSupportedAttribute(name))
SVGElement::parseAttribute(name, value);
else if (name == SVGNames::patternUnitsAttr) {
SVGUnitTypes::SVGUnitType propertyValue = SVGPropertyTraits<SVGUnitTypes::SVGUnitType>::fromString(value);
if (propertyValue > 0)
setPatternUnitsBaseValue(propertyValue);
return;
} else if (name == SVGNames::patternContentUnitsAttr) {
SVGUnitTypes::SVGUnitType propertyValue = SVGPropertyTraits<SVGUnitTypes::SVGUnitType>::fromString(value);
if (propertyValue > 0)
setPatternContentUnitsBaseValue(propertyValue);
return;
} else if (name == SVGNames::patternTransformAttr) {
SVGTransformList newList;
newList.parse(value);
detachAnimatedPatternTransformListWrappers(newList.size());
setPatternTransformBaseValue(newList);
return;
} else if (name == SVGNames::xAttr)
setXBaseValue(SVGLength::construct(LengthModeWidth, value, parseError));
else if (name == SVGNames::yAttr)
setYBaseValue(SVGLength::construct(LengthModeHeight, value, parseError));
else if (name == SVGNames::widthAttr)
setWidthBaseValue(SVGLength::construct(LengthModeWidth, value, parseError, ForbidNegativeLengths));
else if (name == SVGNames::heightAttr)
setHeightBaseValue(SVGLength::construct(LengthModeHeight, value, parseError, ForbidNegativeLengths));
else if (SVGURIReference::parseAttribute(name, value)
|| SVGTests::parseAttribute(name, value)
|| SVGLangSpace::parseAttribute(name, value)
|| SVGExternalResourcesRequired::parseAttribute(name, value)
|| SVGFitToViewBox::parseAttribute(this, name, value)) {
} else
ASSERT_NOT_REACHED();
reportAttributeParsingError(parseError, name, value);
}
void SVGPatternElement::svgAttributeChanged(const QualifiedName& attrName)
{
if (!isSupportedAttribute(attrName)) {
SVGElement::svgAttributeChanged(attrName);
return;
}
SVGElementInstance::InvalidationGuard invalidationGuard(this);
if (attrName == SVGNames::xAttr
|| attrName == SVGNames::yAttr
|| attrName == SVGNames::widthAttr
|| attrName == SVGNames::heightAttr)
updateRelativeLengthsInformation();
if (RenderObject* object = renderer())
object->setNeedsLayout();
}
void SVGPatternElement::childrenChanged(const ChildChange& change)
{
SVGElement::childrenChanged(change);
if (change.source == ChildChangeSourceParser)
return;
if (RenderObject* object = renderer())
object->setNeedsLayout();
}
RenderPtr<RenderElement> SVGPatternElement::createElementRenderer(PassRef<RenderStyle> style)
{
return createRenderer<RenderSVGResourcePattern>(*this, WTF::move(style));
}
static void setPatternAttributes(const SVGPatternElement& element, PatternAttributes& attributes)
{
if (!attributes.hasX() && element.hasAttribute(SVGNames::xAttr))
attributes.setX(element.x());
if (!attributes.hasY() && element.hasAttribute(SVGNames::yAttr))
attributes.setY(element.y());
if (!attributes.hasWidth() && element.hasAttribute(SVGNames::widthAttr))
attributes.setWidth(element.width());
if (!attributes.hasHeight() && element.hasAttribute(SVGNames::heightAttr))
attributes.setHeight(element.height());
if (!attributes.hasViewBox() && element.hasAttribute(SVGNames::viewBoxAttr) && element.viewBoxIsValid())
attributes.setViewBox(element.viewBox());
if (!attributes.hasPreserveAspectRatio() && element.hasAttribute(SVGNames::preserveAspectRatioAttr))
attributes.setPreserveAspectRatio(element.preserveAspectRatio());
if (!attributes.hasPatternUnits() && element.hasAttribute(SVGNames::patternUnitsAttr))
attributes.setPatternUnits(element.patternUnits());
if (!attributes.hasPatternContentUnits() && element.hasAttribute(SVGNames::patternContentUnitsAttr))
attributes.setPatternContentUnits(element.patternContentUnits());
if (!attributes.hasPatternTransform() && element.hasAttribute(SVGNames::patternTransformAttr)) {
AffineTransform transform;
element.patternTransform().concatenate(transform);
attributes.setPatternTransform(transform);
}
if (!attributes.hasPatternContentElement() && element.childElementCount())
attributes.setPatternContentElement(&element);
}
void SVGPatternElement::collectPatternAttributes(PatternAttributes& attributes) const
{
HashSet<const SVGPatternElement*> processedPatterns;
const SVGPatternElement* current = this;
while (true) {
setPatternAttributes(*current, attributes);
processedPatterns.add(current);
Element* refElement = SVGURIReference::targetElementFromIRIString(current->href(), document());
if (refElement && isSVGPatternElement(refElement)) {
current = toSVGPatternElement(refElement);
if (processedPatterns.contains(current))
return;
} else
return;
}
ASSERT_NOT_REACHED();
}
AffineTransform SVGPatternElement::localCoordinateSpaceTransform(SVGLocatable::CTMScope) const
{
AffineTransform matrix;
patternTransform().concatenate(matrix);
return matrix;
}
bool SVGPatternElement::selfHasRelativeLengths() const
{
return x().isRelative()
|| y().isRelative()
|| width().isRelative()
|| height().isRelative();
}
}