void SVGSMILElement::buildPendingResource() {
clearResourceAndEventBaseReferences();
if (!isConnected()) {
// Reset the target element if we are no longer in the document.
setTargetElement(nullptr);
return;
}
AtomicString id;
const AtomicString& href = SVGURIReference::legacyHrefString(*this);
Element* target;
if (href.isEmpty())
target = parentNode() && parentNode()->isElementNode()
? toElement(parentNode())
: nullptr;
else
target =
SVGURIReference::targetElementFromIRIString(href, treeScope(), &id);
SVGElement* svgTarget =
target && target->isSVGElement() ? toSVGElement(target) : nullptr;
if (svgTarget && !svgTarget->isConnected())
svgTarget = nullptr;
if (svgTarget != targetElement())
setTargetElement(svgTarget);
if (!svgTarget) {
// Do not register as pending if we are already pending this resource.
if (document().accessSVGExtensions().isElementPendingResource(this, id))
return;
if (!id.isEmpty()) {
document().accessSVGExtensions().addPendingResource(id, this);
ASSERT(hasPendingResources());
}
} else {
// Register us with the target in the dependencies map. Any change of
// hrefElement that leads to relayout/repainting now informs us, so we can
// react to it.
addReferenceTo(svgTarget);
}
connectEventBaseConditions();
}
void SVGSMILElement::connectEventBaseConditions()
{
disconnectEventBaseConditions();
for (unsigned n = 0; n < m_conditions.size(); ++n) {
Condition* condition = m_conditions[n].get();
if (condition->getType() == Condition::EventBase) {
ASSERT(!condition->syncBase());
SVGElement* eventBase = eventBaseFor(*condition);
if (!eventBase) {
if (!condition->baseID().isEmpty() && !document().accessSVGExtensions().isElementPendingResource(this, AtomicString(condition->baseID())))
document().accessSVGExtensions().addPendingResource(AtomicString(condition->baseID()), this);
continue;
}
ASSERT(!condition->eventListener());
condition->setEventListener(ConditionEventListener::create(this, condition));
eventBase->addEventListener(AtomicString(condition->name()), condition->eventListener(), false);
addReferenceTo(eventBase);
}
}
}
void SVGAnimateElement::resetAnimatedType()
{
SVGAnimatedTypeAnimator* animator = ensureAnimator();
SVGElement* targetElement = this->targetElement();
const QualifiedName& attributeName = this->attributeName();
ShouldApplyAnimation shouldApply = shouldApplyAnimation(targetElement, attributeName);
if (shouldApply == DontApplyAnimation)
return;
if (shouldApply == ApplyXMLAnimation) {
// SVG DOM animVal animation code-path.
WillBeHeapVector<RawPtrWillBeMember<SVGElement> > animatedElements = findElementInstances(targetElement);
ASSERT(!animatedElements.isEmpty());
WillBeHeapVector<RawPtrWillBeMember<SVGElement> >::const_iterator end = animatedElements.end();
for (WillBeHeapVector<RawPtrWillBeMember<SVGElement> >::const_iterator it = animatedElements.begin(); it != end; ++it)
addReferenceTo(*it);
if (!m_animatedProperty)
m_animatedProperty = animator->startAnimValAnimation(animatedElements);
else
m_animatedProperty = animator->resetAnimValToBaseVal(animatedElements);
return;
}
// CSS properties animation code-path.
String baseValue;
if (shouldApply == ApplyCSSAnimation) {
ASSERT(SVGAnimationElement::isTargetAttributeCSSProperty(targetElement, attributeName));
computeCSSPropertyValue(targetElement, cssPropertyID(attributeName.localName()), baseValue);
}
m_animatedProperty = animator->constructFromString(baseValue);
}
void SVGFEImageElement::buildPendingResource()
{
clearResourceReferences();
if (!inDocument())
return;
AtomicString id;
Element* target = SVGURIReference::targetElementFromIRIString(hrefString(), treeScope(), &id);
if (!target) {
if (id.isEmpty()) {
fetchImageResource();
} else {
document().accessSVGExtensions().addPendingResource(id, this);
ASSERT(hasPendingResources());
}
} else if (target->isSVGElement()) {
// Register us with the target in the dependencies map. Any change of hrefElement
// that leads to relayout/repainting now informs us, so we can react to it.
addReferenceTo(toSVGElement(target));
}
invalidate();
}
bool SVGUseElement::buildShadowTree(SVGElement* target, SVGElement* targetInstance, bool foundUse)
{
ASSERT(target);
ASSERT(targetInstance);
// Spec: If the referenced object is itself a 'use', or if there are 'use' subelements within the referenced
// object, the instance tree will contain recursive expansion of the indirect references to form a complete tree.
if (isSVGUseElement(*target)) {
// We only need to track first degree <use> dependencies. Indirect references are handled
// as the invalidation bubbles up the dependency chain.
if (!foundUse && !isStructurallyExternal()) {
addReferenceTo(target);
foundUse = true;
}
} else if (isDisallowedElement(target)) {
return false;
}
targetInstance->setCorrespondingElement(target);
if (EventTargetData* data = target->eventTargetData())
data->eventListenerMap.copyEventListenersNotCreatedFromMarkupToTarget(targetInstance);
for (RefPtrWillBeRawPtr<Node> child = target->firstChild(); child; child = child->nextSibling()) {
// Skip any disallowed element.
if (isDisallowedElement(child.get()))
continue;
RefPtrWillBeRawPtr<Node> newChild = child->cloneNode(false);
targetInstance->appendChild(newChild.get());
if (newChild->isSVGElement()) {
// Enter recursion, appending new instance tree nodes to the "instance" object.
if (!buildShadowTree(toSVGElement(child), toSVGElement(newChild), foundUse))
return false;
}
}
return true;
}
void SVGAnimateElement::resetAnimatedType()
{
SVGElement* targetElement = this->targetElement();
const QualifiedName& attributeName = this->attributeName();
m_animator.reset(targetElement);
ShouldApplyAnimationType shouldApply = shouldApplyAnimation(targetElement, attributeName);
if (shouldApply == DontApplyAnimation)
return;
if (shouldApply == ApplyXMLAnimation || shouldApply == ApplyXMLandCSSAnimation) {
// SVG DOM animVal animation code-path.
SVGElementInstances animatedElements = findElementInstances(targetElement);
ASSERT(!animatedElements.isEmpty());
for (SVGElement* element : animatedElements)
addReferenceTo(element);
if (!m_animatedProperty)
m_animatedProperty = m_animator.startAnimValAnimation(animatedElements);
else
m_animatedProperty = m_animator.resetAnimValToBaseVal(animatedElements);
return;
}
// CSS properties animation code-path.
String baseValue;
if (shouldApply == ApplyCSSAnimation) {
ASSERT(SVGAnimationElement::isTargetAttributeCSSProperty(targetElement, attributeName));
computeCSSPropertyValue(targetElement, cssPropertyID(attributeName.localName()), baseValue);
}
m_animatedProperty = m_animator.constructFromString(baseValue);
}