void SVGAnimateTransformElement::applyResultsToTarget()
{
if (!hasValidTarget())
return;
// We accumulate to the target element transform list so there is not much to do here.
SVGElement* targetElement = this->targetElement();
if (!targetElement)
return;
if (RenderObject* renderer = targetElement->renderer()) {
renderer->setNeedsTransformUpdate();
RenderSVGResource::markForLayoutAndParentResourceInvalidation(renderer);
}
// ...except in case where we have additional instances in <use> trees.
const HashSet<SVGElementInstance*>& instances = targetElement->instancesForElement();
RefPtr<SVGTransformList> transformList = transformListFor(targetElement);
const HashSet<SVGElementInstance*>::const_iterator end = instances.end();
for (HashSet<SVGElementInstance*>::const_iterator it = instances.begin(); it != end; ++it) {
SVGElement* shadowTreeElement = (*it)->shadowTreeElement();
ASSERT(shadowTreeElement);
if (shadowTreeElement->isStyledTransformable())
static_cast<SVGStyledTransformableElement*>(shadowTreeElement)->setTransformBaseValue(transformList.get());
else if (shadowTreeElement->hasTagName(SVGNames::textTag))
static_cast<SVGTextElement*>(shadowTreeElement)->setTransformBaseValue(transformList.get());
else if (shadowTreeElement->hasTagName(SVGNames::linearGradientTag) || shadowTreeElement->hasTagName(SVGNames::radialGradientTag))
static_cast<SVGGradientElement*>(shadowTreeElement)->setGradientTransformBaseValue(transformList.get());
if (RenderObject* renderer = shadowTreeElement->renderer()) {
renderer->setNeedsTransformUpdate();
RenderSVGResource::markForLayoutAndParentResourceInvalidation(renderer);
}
}
}
void SVGAnimateMotionElement::applyResultsToTarget()
{
// We accumulate to the target element transform list so there is not much to do here.
SVGElement* targetElement = this->targetElement();
if (!targetElement)
return;
if (RenderObject* renderer = targetElement->renderer())
RenderSVGResource::markForLayoutAndParentResourceInvalidation(renderer);
AffineTransform* t = targetElement->supplementalTransform();
if (!t)
return;
// ...except in case where we have additional instances in <use> trees.
const HashSet<SVGElementInstance*>& instances = targetElement->instancesForElement();
const HashSet<SVGElementInstance*>::const_iterator end = instances.end();
for (HashSet<SVGElementInstance*>::const_iterator it = instances.begin(); it != end; ++it) {
SVGElement* shadowTreeElement = (*it)->shadowTreeElement();
ASSERT(shadowTreeElement);
AffineTransform* transform = shadowTreeElement->supplementalTransform();
if (!transform)
continue;
transform->setMatrix(t->a(), t->b(), t->c(), t->d(), t->e(), t->f());
if (RenderObject* renderer = shadowTreeElement->renderer()) {
renderer->setNeedsTransformUpdate();
RenderSVGResource::markForLayoutAndParentResourceInvalidation(renderer);
}
}
}
void RenderSVGResourceClipper::createDisplayList(GraphicsContext* context,
const AffineTransform& contentTransformation)
{
ASSERT(context);
ASSERT(frame());
// Using strokeBoundingBox (instead of paintInvalidationRectInLocalCoordinates) to avoid the intersection
// with local clips/mask, which may yield incorrect results when mixing objectBoundingBox and
// userSpaceOnUse units (http://crbug.com/294900).
FloatRect bounds = strokeBoundingBox();
context->beginRecording(bounds);
// Switch to a paint behavior where all children of this <clipPath> will be rendered using special constraints:
// - fill-opacity/stroke-opacity/opacity set to 1
// - masker/filter not applied when rendering the children
// - fill is set to the initial fill paint server (solid, black)
// - stroke is set to the initial stroke paint server (none)
PaintBehavior oldBehavior = frame()->view()->paintBehavior();
frame()->view()->setPaintBehavior(oldBehavior | PaintBehaviorRenderingSVGMask);
for (SVGElement* childElement = Traversal<SVGElement>::firstChild(*element()); childElement; childElement = Traversal<SVGElement>::nextSibling(*childElement)) {
RenderObject* renderer = childElement->renderer();
if (!renderer)
continue;
RenderStyle* style = renderer->style();
if (!style || style->display() == NONE || style->visibility() != VISIBLE)
continue;
WindRule newClipRule = style->svgStyle().clipRule();
bool isUseElement = isSVGUseElement(*childElement);
if (isUseElement) {
SVGUseElement& useElement = toSVGUseElement(*childElement);
renderer = useElement.rendererClipChild();
if (!renderer)
continue;
if (!useElement.hasAttribute(SVGNames::clip_ruleAttr))
newClipRule = renderer->style()->svgStyle().clipRule();
}
// Only shapes, paths and texts are allowed for clipping.
if (!renderer->isSVGShape() && !renderer->isSVGText())
continue;
context->setFillRule(newClipRule);
if (isUseElement)
renderer = childElement->renderer();
SVGRenderingContext::renderSubtree(context, renderer, contentTransformation);
}
frame()->view()->setPaintBehavior(oldBehavior);
m_clipContentDisplayList = context->endRecording();
}
bool RenderSVGModelObject::checkEnclosure(RenderObject* renderer, const FloatRect& rect)
{
if (!renderer || renderer->style()->pointerEvents() == PE_NONE)
return false;
if (!isGraphicsElement(renderer))
return false;
AffineTransform ctm;
SVGElement* svgElement = toSVGElement(renderer->node());
getElementCTM(svgElement, ctm);
ASSERT(svgElement->renderer());
return rect.contains(ctm.mapRect(svgElement->renderer()->repaintRectInLocalCoordinates()));
}
bool RenderSVGModelObject::checkIntersection(RenderObject* renderer, const SVGRect& rect)
{
if (!renderer || renderer->style()->pointerEvents() == PE_NONE)
return false;
if (!isGraphicsElement(renderer))
return false;
AffineTransform ctm;
SVGElement* svgElement = toSVGElement(renderer->node());
getElementCTM(svgElement, ctm);
ASSERT(svgElement->renderer());
return intersectsAllowingEmpty(rect, ctm.mapRect(svgElement->renderer()->repaintRectInLocalCoordinates()));
}
bool RenderSVGResourceClipper::hitTestClipContent(const FloatRect& objectBoundingBox, const FloatPoint& nodeAtPoint)
{
FloatPoint point = nodeAtPoint;
if (!SVGRenderSupport::pointInClippingArea(this, point))
return false;
if (clipPathUnits() == SVGUnitTypes::SVG_UNIT_TYPE_OBJECTBOUNDINGBOX) {
AffineTransform transform;
transform.translate(objectBoundingBox.x(), objectBoundingBox.y());
transform.scaleNonUniform(objectBoundingBox.width(), objectBoundingBox.height());
point = transform.inverse().mapPoint(point);
}
AffineTransform animatedLocalTransform = toSVGClipPathElement(element())->animatedLocalTransform();
if (!animatedLocalTransform.isInvertible())
return false;
point = animatedLocalTransform.inverse().mapPoint(point);
for (SVGElement* childElement = Traversal<SVGElement>::firstChild(*element()); childElement; childElement = Traversal<SVGElement>::nextSibling(*childElement)) {
RenderObject* renderer = childElement->renderer();
if (!renderer)
continue;
if (!renderer->isSVGShape() && !renderer->isSVGText() && !isSVGUseElement(*childElement))
continue;
IntPoint hitPoint;
HitTestResult result(hitPoint);
if (renderer->nodeAtFloatPoint(HitTestRequest(HitTestRequest::SVGClipContent), result, point, HitTestForeground))
return true;
}
return false;
}
PassRefPtrWillBeRawPtr<SVGFilterBuilder> RenderSVGResourceFilter::buildPrimitives(SVGFilter* filter)
{
SVGFilterElement* filterElement = toSVGFilterElement(element());
FloatRect targetBoundingBox = filter->targetBoundingBox();
// Add effects to the builder
RefPtrWillBeRawPtr<SVGFilterBuilder> builder = SVGFilterBuilder::create(SourceGraphic::create(filter), SourceAlpha::create(filter));
for (SVGElement* element = Traversal<SVGElement>::firstChild(*filterElement); element; element = Traversal<SVGElement>::nextSibling(*element)) {
if (!element->isFilterEffect() || !element->renderer())
continue;
SVGFilterPrimitiveStandardAttributes* effectElement = static_cast<SVGFilterPrimitiveStandardAttributes*>(element);
RefPtrWillBeRawPtr<FilterEffect> effect = effectElement->build(builder.get(), filter);
if (!effect) {
builder->clearEffects();
return nullptr;
}
builder->appendEffectToEffectReferences(effect, effectElement->renderer());
effectElement->setStandardAttributes(effect.get());
effect->setEffectBoundaries(SVGLengthContext::resolveRectangle<SVGFilterPrimitiveStandardAttributes>(effectElement, filterElement->primitiveUnits()->currentValue()->enumValue(), targetBoundingBox));
effect->setOperatingColorSpace(
effectElement->renderer()->style()->svgStyle().colorInterpolationFilters() == CI_LINEARRGB ? ColorSpaceLinearRGB : ColorSpaceDeviceRGB);
builder->add(AtomicString(effectElement->result()->currentValue()->value()), effect);
}
return builder.release();
}
void SVGAnimateMotionElement::applyResultsToTarget()
{
// We accumulate to the target element transform list so there is not much to do here.
SVGElement* targetElement = this->targetElement();
if (!targetElement)
return;
if (RenderElement* renderer = targetElement->renderer())
RenderSVGResource::markForLayoutAndParentResourceInvalidation(*renderer);
AffineTransform* targetSupplementalTransform = targetElement->supplementalTransform();
if (!targetSupplementalTransform)
return;
// ...except in case where we have additional instances in <use> trees.
for (auto* instance : targetElement->instances()) {
AffineTransform* transform = instance->supplementalTransform();
if (!transform || *transform == *targetSupplementalTransform)
continue;
*transform = *targetSupplementalTransform;
if (RenderElement* renderer = instance->renderer()) {
renderer->setNeedsTransformUpdate();
RenderSVGResource::markForLayoutAndParentResourceInvalidation(*renderer);
}
}
}
void SVGStyledElement::rebuildRenderer() const
{
if (!renderer() || !renderer()->isRenderPath())
return;
RenderPath* renderPath = static_cast<RenderPath*>(renderer());
SVGElement* parentElement = svg_dynamic_cast(parentNode());
if (parentElement && parentElement->renderer() && parentElement->isStyled() &&
parentElement->childShouldCreateRenderer(const_cast<SVGStyledElement*>(this)))
renderPath->setNeedsLayout(true);
}
void RenderSVGResourceMasker::calculateMaskContentPaintInvalidationRect()
{
for (SVGElement* childElement = Traversal<SVGElement>::firstChild(*element()); childElement; childElement = Traversal<SVGElement>::nextSibling(*childElement)) {
RenderObject* renderer = childElement->renderer();
if (!renderer)
continue;
RenderStyle* style = renderer->style();
if (!style || style->display() == NONE || style->visibility() != VISIBLE)
continue;
m_maskContentBoundaries.unite(renderer->localToParentTransform().mapRect(renderer->paintInvalidationRectInLocalCoordinates()));
}
}
void SVGAnimateTransformElement::applyResultsToTarget()
{
if (!hasValidTarget())
return;
// We accumulate to the target element transform list so there is not much to do here.
SVGElement* targetElement = this->targetElement();
if (targetElement->renderer())
targetElement->renderer()->setNeedsLayout(true);
// ...except in case where we have additional instances in <use> trees.
const HashSet<SVGElementInstance*>& instances = targetElement->instancesForElement();
RefPtr<SVGTransformList> transformList = transformListFor(targetElement);
const HashSet<SVGElementInstance*>::const_iterator end = instances.end();
for (HashSet<SVGElementInstance*>::const_iterator it = instances.begin(); it != end; ++it) {
SVGElement* shadowTreeElement = (*it)->shadowTreeElement();
ASSERT(shadowTreeElement);
if (shadowTreeElement->isStyledTransformable())
static_cast<SVGStyledTransformableElement*>(shadowTreeElement)->setTransformBaseValue(transformList.get());
else if (shadowTreeElement->hasTagName(SVGNames::textTag))
static_cast<SVGTextElement*>(shadowTreeElement)->setTransformBaseValue(transformList.get());
if (shadowTreeElement->renderer())
shadowTreeElement->renderer()->setNeedsLayout(true);
}
}
void RenderSVGResourceClipper::calculateClipContentPaintInvalidationRect()
{
// This is a rough heuristic to appraise the clip size and doesn't consider clip on clip.
for (SVGElement* childElement = Traversal<SVGElement>::firstChild(*element()); childElement; childElement = Traversal<SVGElement>::nextSibling(*childElement)) {
RenderObject* renderer = childElement->renderer();
if (!renderer)
continue;
if (!renderer->isSVGShape() && !renderer->isSVGText() && !isSVGUseElement(*childElement))
continue;
RenderStyle* style = renderer->style();
if (!style || style->display() == NONE || style->visibility() != VISIBLE)
continue;
m_clipBoundaries.unite(renderer->localToParentTransform().mapRect(renderer->paintInvalidationRectInLocalCoordinates()));
}
m_clipBoundaries = toSVGClipPathElement(element())->animatedLocalTransform().mapRect(m_clipBoundaries);
}
static void getElementCTM(SVGElement* element, AffineTransform& transform)
{
ASSERT(element);
element->document()->updateLayoutIgnorePendingStylesheets();
SVGElement* stopAtElement = SVGLocatable::nearestViewportElement(element);
ASSERT(stopAtElement);
Node* current = element;
while (current && current->isSVGElement()) {
SVGElement* currentElement = static_cast<SVGElement*>(current);
if (currentElement->isStyled())
transform = const_cast<AffineTransform&>(currentElement->renderer()->localToParentTransform()).multiply(transform);
// For getCTM() computation, stop at the nearest viewport element
if (currentElement == stopAtElement)
break;
current = current->parentOrHostNode();
}
}
void RenderSVGResourceMasker::createDisplayList(GraphicsContext* context,
const AffineTransform& contentTransform)
{
ASSERT(context);
// Using strokeBoundingBox (instead of paintInvalidationRectInLocalCoordinates) to avoid the intersection
// with local clips/mask, which may yield incorrect results when mixing objectBoundingBox and
// userSpaceOnUse units (http://crbug.com/294900).
FloatRect bounds = strokeBoundingBox();
context->beginRecording(bounds);
for (SVGElement* childElement = Traversal<SVGElement>::firstChild(*element()); childElement; childElement = Traversal<SVGElement>::nextSibling(*childElement)) {
RenderObject* renderer = childElement->renderer();
if (!renderer)
continue;
RenderStyle* style = renderer->style();
if (!style || style->display() == NONE || style->visibility() != VISIBLE)
continue;
SVGRenderingContext::renderSubtree(context, renderer, contentTransform);
}
m_maskContentDisplayList = context->endRecording();
}
void SVGAnimateMotionElement::calculateAnimatedValue(float percentage, unsigned, SVGSMILElement*)
{
SVGElement* targetElement = this->targetElement();
if (!targetElement)
return;
AffineTransform* transform = targetElement->supplementalTransform();
if (!transform)
return;
if (RenderObject* targetRenderer = targetElement->renderer())
targetRenderer->setNeedsTransformUpdate();
if (!isAdditive())
transform->makeIdentity();
// FIXME: Implement accumulate.
if (animationMode() == PathAnimation) {
ASSERT(!animationPath().isEmpty());
Path path = animationPath();
float positionOnPath = path.length() * percentage;
bool ok;
FloatPoint position = path.pointAtLength(positionOnPath, ok);
if (ok) {
transform->translate(position.x(), position.y());
RotateMode rotateMode = this->rotateMode();
if (rotateMode == RotateAuto || rotateMode == RotateAutoReverse) {
float angle = path.normalAngleAtLength(positionOnPath, ok);
if (rotateMode == RotateAutoReverse)
angle += 180;
transform->rotate(angle);
}
}
return;
}
FloatSize diff = m_toPoint - m_fromPoint;
transform->translate(diff.width() * percentage + m_fromPoint.x(), diff.height() * percentage + m_fromPoint.y());
}
void SVGAnimateMotionElement::calculateAnimatedValue(float percentage, unsigned repeatCount, SVGSMILElement*)
{
SVGElement* targetElement = this->targetElement();
if (!targetElement)
return;
AffineTransform* transform = targetElement->supplementalTransform();
if (!transform)
return;
if (RenderObject* targetRenderer = targetElement->renderer())
targetRenderer->setNeedsTransformUpdate();
if (!isAdditive())
transform->makeIdentity();
if (animationMode() != PathAnimation) {
FloatPoint toPointAtEndOfDuration = m_toPoint;
if (isAccumulated() && repeatCount && m_hasToPointAtEndOfDuration)
toPointAtEndOfDuration = m_toPointAtEndOfDuration;
float animatedX = 0;
animateAdditiveNumber(percentage, repeatCount, m_fromPoint.x(), m_toPoint.x(), toPointAtEndOfDuration.x(), animatedX);
float animatedY = 0;
animateAdditiveNumber(percentage, repeatCount, m_fromPoint.y(), m_toPoint.y(), toPointAtEndOfDuration.y(), animatedY);
transform->translate(animatedX, animatedY);
return;
}
buildTransformForProgress(transform, percentage);
// Handle accumulate="sum".
if (isAccumulated() && repeatCount) {
for (unsigned i = 0; i < repeatCount; ++i)
buildTransformForProgress(transform, 1);
}
}
bool RenderSVGResourceClipper::tryPathOnlyClipping(GraphicsContext* context,
const AffineTransform& animatedLocalTransform, const FloatRect& objectBoundingBox) {
// If the current clip-path gets clipped itself, we have to fallback to masking.
if (!style()->svgStyle().clipperResource().isEmpty())
return false;
WindRule clipRule = RULE_NONZERO;
Path clipPath = Path();
for (SVGElement* childElement = Traversal<SVGElement>::firstChild(*element()); childElement; childElement = Traversal<SVGElement>::nextSibling(*childElement)) {
RenderObject* renderer = childElement->renderer();
if (!renderer)
continue;
// Only shapes or paths are supported for direct clipping. We need to fallback to masking for texts.
if (renderer->isSVGText())
return false;
if (!childElement->isSVGGraphicsElement())
continue;
SVGGraphicsElement* styled = toSVGGraphicsElement(childElement);
RenderStyle* style = renderer->style();
if (!style || style->display() == NONE || style->visibility() != VISIBLE)
continue;
const SVGRenderStyle& svgStyle = style->svgStyle();
// Current shape in clip-path gets clipped too. Fallback to masking.
if (!svgStyle.clipperResource().isEmpty())
return false;
if (clipPath.isEmpty()) {
// First clip shape.
styled->toClipPath(clipPath);
clipRule = svgStyle.clipRule();
clipPath.setWindRule(clipRule);
continue;
}
if (RuntimeEnabledFeatures::pathOpsSVGClippingEnabled()) {
// Attempt to generate a combined clip path, fall back to masking if not possible.
Path subPath;
styled->toClipPath(subPath);
subPath.setWindRule(svgStyle.clipRule());
if (!clipPath.unionPath(subPath))
return false;
} else {
return false;
}
}
// Only one visible shape/path was found. Directly continue clipping and transform the content to userspace if necessary.
if (clipPathUnits() == SVGUnitTypes::SVG_UNIT_TYPE_OBJECTBOUNDINGBOX) {
AffineTransform transform;
transform.translate(objectBoundingBox.x(), objectBoundingBox.y());
transform.scaleNonUniform(objectBoundingBox.width(), objectBoundingBox.height());
clipPath.transform(transform);
}
// Transform path by animatedLocalTransform.
clipPath.transform(animatedLocalTransform);
// The SVG specification wants us to clip everything, if clip-path doesn't have a child.
if (clipPath.isEmpty())
clipPath.addRect(FloatRect());
context->clipPath(clipPath, clipRule);
return true;
}
