RenderSVGModelObject.cpp [plain text]
#include "config.h"
#include "RenderSVGModelObject.h"
#include "RenderLayerModelObject.h"
#include "RenderSVGResource.h"
#include "SVGNames.h"
#include "SVGResourcesCache.h"
#include "ShadowRoot.h"
#include <wtf/IsoMallocInlines.h>
namespace WebCore {
WTF_MAKE_ISO_ALLOCATED_IMPL(RenderSVGModelObject);
RenderSVGModelObject::RenderSVGModelObject(SVGElement& element, RenderStyle&& style)
: RenderElement(element, WTFMove(style), 0)
, m_hasSVGShadow(false)
{
}
LayoutRect RenderSVGModelObject::clippedOverflowRectForRepaint(const RenderLayerModelObject* repaintContainer) const
{
return SVGRenderSupport::clippedOverflowRectForRepaint(*this, repaintContainer);
}
FloatRect RenderSVGModelObject::computeFloatRectForRepaint(const FloatRect& repaintRect, const RenderLayerModelObject* repaintContainer, bool fixed) const
{
return SVGRenderSupport::computeFloatRectForRepaint(*this, repaintRect, repaintContainer, fixed);
}
void RenderSVGModelObject::mapLocalToContainer(const RenderLayerModelObject* repaintContainer, TransformState& transformState, MapCoordinatesFlags, bool* wasFixed) const
{
SVGRenderSupport::mapLocalToContainer(*this, repaintContainer, transformState, wasFixed);
}
const RenderObject* RenderSVGModelObject::pushMappingToContainer(const RenderLayerModelObject* ancestorToStopAt, RenderGeometryMap& geometryMap) const
{
return SVGRenderSupport::pushMappingToContainer(*this, ancestorToStopAt, geometryMap);
}
LayoutRect RenderSVGModelObject::outlineBoundsForRepaint(const RenderLayerModelObject* repaintContainer, const RenderGeometryMap*) const
{
LayoutRect box = enclosingLayoutRect(repaintRectInLocalCoordinates());
adjustRectForOutlineAndShadow(box);
FloatQuad containerRelativeQuad = localToContainerQuad(FloatRect(box), repaintContainer);
return LayoutRect(snapRectToDevicePixels(LayoutRect(containerRelativeQuad.boundingBox()), document().deviceScaleFactor()));
}
void RenderSVGModelObject::absoluteRects(Vector<IntRect>& rects, const LayoutPoint& accumulatedOffset) const
{
IntRect rect = enclosingIntRect(strokeBoundingBox());
rect.moveBy(roundedIntPoint(accumulatedOffset));
rects.append(rect);
}
void RenderSVGModelObject::absoluteQuads(Vector<FloatQuad>& quads, bool* wasFixed) const
{
quads.append(localToAbsoluteQuad(strokeBoundingBox(), UseTransforms, wasFixed));
}
void RenderSVGModelObject::willBeDestroyed()
{
SVGResourcesCache::clientDestroyed(*this);
RenderElement::willBeDestroyed();
}
void RenderSVGModelObject::styleDidChange(StyleDifference diff, const RenderStyle* oldStyle)
{
if (diff == StyleDifference::Layout) {
setNeedsBoundariesUpdate();
if (style().hasTransform())
setNeedsTransformUpdate();
}
RenderElement::styleDidChange(diff, oldStyle);
SVGResourcesCache::clientStyleChanged(*this, diff, style());
}
bool RenderSVGModelObject::nodeAtPoint(const HitTestRequest&, HitTestResult&, const HitTestLocation&, const LayoutPoint&, HitTestAction)
{
ASSERT_NOT_REACHED();
return false;
}
static void getElementCTM(SVGElement* element, AffineTransform& transform)
{
ASSERT(element);
SVGElement* stopAtElement = SVGLocatable::nearestViewportElement(element);
ASSERT(stopAtElement);
AffineTransform localTransform;
Node* current = element;
while (current && current->isSVGElement()) {
SVGElement& currentElement = downcast<SVGElement>(*current);
localTransform = currentElement.renderer()->localToParentTransform();
transform = localTransform.multiply(transform);
if (¤tElement == stopAtElement)
break;
current = current->parentOrShadowHostNode();
}
}
static bool intersectsAllowingEmpty(const FloatRect& r, const FloatRect& other)
{
if (r.isEmpty() && other.isEmpty())
return false;
if (r.isEmpty() && !other.isEmpty()) {
return (other.contains(r.x(), r.y()) && !other.contains(r.maxX(), r.maxY()))
|| (!other.contains(r.x(), r.y()) && other.contains(r.maxX(), r.maxY()));
}
if (other.isEmpty() && !r.isEmpty())
return intersectsAllowingEmpty(other, r);
return r.intersects(other);
}
static bool isGraphicsElement(const RenderElement& renderer)
{
return renderer.isSVGShape() || renderer.isSVGText() || renderer.isSVGImage() || renderer.element()->hasTagName(SVGNames::useTag);
}
void RenderSVGModelObject::absoluteFocusRingQuads(Vector<FloatQuad>& quads)
{
quads.append(localToAbsoluteQuad(FloatQuad(repaintRectInLocalCoordinates())));
}
bool RenderSVGModelObject::checkIntersection(RenderElement* renderer, const FloatRect& rect)
{
if (!renderer || renderer->style().pointerEvents() == PointerEvents::None)
return false;
if (!isGraphicsElement(*renderer))
return false;
AffineTransform ctm;
SVGElement* svgElement = downcast<SVGElement>(renderer->element());
getElementCTM(svgElement, ctm);
ASSERT(svgElement->renderer());
return intersectsAllowingEmpty(rect, ctm.mapRect(svgElement->renderer()->repaintRectInLocalCoordinates()));
}
bool RenderSVGModelObject::checkEnclosure(RenderElement* renderer, const FloatRect& rect)
{
if (!renderer || renderer->style().pointerEvents() == PointerEvents::None)
return false;
if (!isGraphicsElement(*renderer))
return false;
AffineTransform ctm;
SVGElement* svgElement = downcast<SVGElement>(renderer->element());
getElementCTM(svgElement, ctm);
ASSERT(svgElement->renderer());
return rect.contains(ctm.mapRect(svgElement->renderer()->repaintRectInLocalCoordinates()));
}
}