void SVGRectElement::svgAttributeChanged(const QualifiedName& attrName)
{
if (!isSupportedAttribute(attrName)) {
SVGGeometryElement::svgAttributeChanged(attrName);
return;
}
SVGElement::InvalidationGuard invalidationGuard(this);
bool isLengthAttribute = attrName == SVGNames::xAttr
|| attrName == SVGNames::yAttr
|| attrName == SVGNames::widthAttr
|| attrName == SVGNames::heightAttr
|| attrName == SVGNames::rxAttr
|| attrName == SVGNames::ryAttr;
if (isLengthAttribute)
updateRelativeLengthsInformation();
RenderSVGShape* renderer = toRenderSVGShape(this->renderer());
if (!renderer)
return;
if (isLengthAttribute) {
renderer->setNeedsShapeUpdate();
RenderSVGResource::markForLayoutAndParentResourceInvalidation(renderer);
return;
}
ASSERT_NOT_REACHED();
}
void SVGRenderSupport::computeContainerBoundingBoxes(const RenderObject* container, FloatRect& objectBoundingBox, bool& objectBoundingBoxValid, FloatRect& strokeBoundingBox, FloatRect& paintInvalidationBoundingBox)
{
objectBoundingBox = FloatRect();
objectBoundingBoxValid = false;
strokeBoundingBox = FloatRect();
// When computing the strokeBoundingBox, we use the paintInvalidationRects of the container's children so that the container's stroke includes
// the resources applied to the children (such as clips and filters). This allows filters applied to containers to correctly bound
// the children, and also improves inlining of SVG content, as the stroke bound is used in that situation also.
for (RenderObject* current = container->slowFirstChild(); current; current = current->nextSibling()) {
if (current->isSVGHiddenContainer())
continue;
// Don't include elements in the union that do not render.
if (current->isSVGShape() && toRenderSVGShape(current)->isShapeEmpty())
continue;
const AffineTransform& transform = current->localToParentTransform();
updateObjectBoundingBox(objectBoundingBox, objectBoundingBoxValid, current,
transform.mapRect(current->objectBoundingBox()));
strokeBoundingBox.unite(transform.mapRect(current->paintInvalidationRectInLocalCoordinates()));
}
paintInvalidationBoundingBox = strokeBoundingBox;
}
void SVGPolyElement::svgAttributeChanged(const QualifiedName& attrName)
{
if (!isSupportedAttribute(attrName)) {
SVGGeometryElement::svgAttributeChanged(attrName);
return;
}
SVGElementInstance::InvalidationGuard invalidationGuard(this);
RenderSVGShape* renderer = toRenderSVGShape(this->renderer());
if (!renderer)
return;
if (attrName == SVGNames::pointsAttr) {
renderer->setNeedsShapeUpdate();
RenderSVGResource::markForLayoutAndParentResourceInvalidation(renderer);
return;
}
if (SVGLangSpace::isKnownAttribute(attrName) || SVGExternalResourcesRequired::isKnownAttribute(attrName)) {
RenderSVGResource::markForLayoutAndParentResourceInvalidation(renderer);
return;
}
ASSERT_NOT_REACHED();
}
void SVGEllipseElement::svgAttributeChanged(const QualifiedName& attrName)
{
if (!isSupportedAttribute(attrName)) {
SVGGraphicsElement::svgAttributeChanged(attrName);
return;
}
SVGElementInstance::InvalidationGuard invalidationGuard(this);
if (attrName == SVGNames::cxAttr
|| attrName == SVGNames::cyAttr
|| attrName == SVGNames::rxAttr
|| attrName == SVGNames::ryAttr) {
invalidateSVGPresentationAttributeStyle();
return;
}
RenderSVGShape* renderer = toRenderSVGShape(this->renderer());
if (!renderer)
return;
if (SVGLangSpace::isKnownAttribute(attrName) || SVGExternalResourcesRequired::isKnownAttribute(attrName)) {
RenderSVGResource::markForLayoutAndParentResourceInvalidation(*renderer);
return;
}
ASSERT_NOT_REACHED();
}
void SVGRenderSupport::layoutChildren(RenderObject* start, bool selfNeedsLayout)
{
bool layoutSizeChanged = layoutSizeOfNearestViewportChanged(start);
bool transformChanged = transformToRootChanged(start);
HashSet<RenderObject*> notlayoutedObjects;
for (RenderObject* child = start->firstChild(); child; child = child->nextSibling()) {
bool needsLayout = selfNeedsLayout;
if (transformChanged) {
// If the transform changed we need to update the text metrics (note: this also happens for layoutSizeChanged=true).
if (child->isSVGText())
toRenderSVGText(child)->setNeedsTextMetricsUpdate();
needsLayout = true;
}
if (layoutSizeChanged) {
// When selfNeedsLayout is false and the layout size changed, we have to check whether this child uses relative lengths
if (SVGElement* element = child->node()->isSVGElement() ? static_cast<SVGElement*>(child->node()) : 0) {
if (element->isStyled() && static_cast<SVGStyledElement*>(element)->hasRelativeLengths()) {
// When the layout size changed and when using relative values tell the RenderSVGShape to update its shape object
if (child->isSVGShape())
toRenderSVGShape(child)->setNeedsShapeUpdate();
needsLayout = true;
}
}
}
if (needsLayout) {
child->setNeedsLayout(true, false);
child->layout();
} else {
if (child->needsLayout())
child->layout();
else if (layoutSizeChanged)
notlayoutedObjects.add(child);
}
ASSERT(!child->needsLayout());
}
if (!layoutSizeChanged) {
ASSERT(notlayoutedObjects.isEmpty());
return;
}
// If the layout size changed, invalidate all resources of all children that didn't go through the layout() code path.
HashSet<RenderObject*>::iterator end = notlayoutedObjects.end();
for (HashSet<RenderObject*>::iterator it = notlayoutedObjects.begin(); it != end; ++it)
invalidateResourcesOfChildren(*it);
}
bool SVGGeometryElement::isPointInStroke(PassRefPtr<SVGPointTearOff> point) const
{
document().updateLayoutIgnorePendingStylesheets();
// FIXME: Eventually we should support isPointInStroke for display:none elements.
if (!renderer() || !renderer()->isSVGShape())
return false;
HitTestRequest request(HitTestRequest::ReadOnly);
PointerEventsHitRules hitRules(PointerEventsHitRules::SVG_GEOMETRY_HITTESTING, request, renderer()->style()->pointerEvents());
hitRules.canHitFill = false;
return toRenderSVGShape(renderer())->nodeAtFloatPointInternal(request, point->target()->value(), hitRules);
}
void SVGRenderSupport::layoutChildren(RenderObject* start, bool selfNeedsLayout)
{
// When hasRelativeLengths() is false, no descendants have relative lengths
// (hence no one is interested in viewport size changes).
bool layoutSizeChanged = toSVGElement(start->node())->hasRelativeLengths()
&& layoutSizeOfNearestViewportChanged(start);
bool transformChanged = transformToRootChanged(start);
for (RenderObject* child = start->slowFirstChild(); child; child = child->nextSibling()) {
bool forceLayout = selfNeedsLayout;
if (transformChanged) {
// If the transform changed we need to update the text metrics (note: this also happens for layoutSizeChanged=true).
if (child->isSVGText())
toRenderSVGText(child)->setNeedsTextMetricsUpdate();
forceLayout = true;
}
if (layoutSizeChanged) {
// When selfNeedsLayout is false and the layout size changed, we have to check whether this child uses relative lengths
if (SVGElement* element = child->node()->isSVGElement() ? toSVGElement(child->node()) : 0) {
if (element->hasRelativeLengths()) {
// FIXME: this should be done on invalidation, not during layout.
// When the layout size changed and when using relative values tell the RenderSVGShape to update its shape object
if (child->isSVGShape()) {
toRenderSVGShape(child)->setNeedsShapeUpdate();
} else if (child->isSVGText()) {
toRenderSVGText(child)->setNeedsTextMetricsUpdate();
toRenderSVGText(child)->setNeedsPositioningValuesUpdate();
}
forceLayout = true;
}
}
}
SubtreeLayoutScope layoutScope(*child);
// Resource containers are nasty: they can invalidate clients outside the current SubtreeLayoutScope.
// Since they only care about viewport size changes (to resolve their relative lengths), we trigger
// their invalidation directly from SVGSVGElement::svgAttributeChange() or at a higher
// SubtreeLayoutScope (in RenderView::layout()).
if (forceLayout && !child->isSVGResourceContainer())
layoutScope.setNeedsLayout(child);
// Lay out any referenced resources before the child.
layoutResourcesIfNeeded(child);
child->layoutIfNeeded();
}
}
void SVGRectElement::svgAttributeChanged(const QualifiedName& attrName)
{
if (!isSupportedAttribute(attrName)) {
SVGGraphicsElement::svgAttributeChanged(attrName);
return;
}
SVGElementInstance::InvalidationGuard invalidationGuard(this);
if (attrName == SVGNames::xAttr
|| attrName == SVGNames::yAttr
|| attrName == SVGNames::widthAttr
|| attrName == SVGNames::heightAttr) {
invalidateSVGPresentationAttributeStyle();
return;
}
bool isLengthAttribute = attrName == SVGNames::rxAttr
|| attrName == SVGNames::ryAttr;
if (isLengthAttribute)
updateRelativeLengthsInformation();
RenderSVGShape* renderer = toRenderSVGShape(this->renderer());
if (!renderer)
return;
if (isLengthAttribute) {
renderer->setNeedsShapeUpdate();
RenderSVGResource::markForLayoutAndParentResourceInvalidation(*renderer);
return;
}
if (SVGLangSpace::isKnownAttribute(attrName) || SVGExternalResourcesRequired::isKnownAttribute(attrName)) {
RenderSVGResource::markForLayoutAndParentResourceInvalidation(*renderer);
return;
}
ASSERT_NOT_REACHED();
}
void SVGRenderSupport::layoutChildren(RenderObject* start, bool selfNeedsLayout)
{
bool layoutSizeChanged = layoutSizeOfNearestViewportChanged(start);
bool transformChanged = transformToRootChanged(start);
HashSet<RenderObject*> notlayoutedObjects;
for (RenderObject* child = start->slowFirstChild(); child; child = child->nextSibling()) {
bool needsLayout = selfNeedsLayout;
bool childEverHadLayout = child->everHadLayout();
if (transformChanged) {
// If the transform changed we need to update the text metrics (note: this also happens for layoutSizeChanged=true).
if (child->isSVGText())
toRenderSVGText(child)->setNeedsTextMetricsUpdate();
needsLayout = true;
}
if (layoutSizeChanged) {
// When selfNeedsLayout is false and the layout size changed, we have to check whether this child uses relative lengths
if (SVGElement* element = child->node()->isSVGElement() ? toSVGElement(child->node()) : 0) {
if (element->hasRelativeLengths()) {
// When the layout size changed and when using relative values tell the RenderSVGShape to update its shape object
if (child->isSVGShape()) {
toRenderSVGShape(child)->setNeedsShapeUpdate();
} else if (child->isSVGText()) {
toRenderSVGText(child)->setNeedsTextMetricsUpdate();
toRenderSVGText(child)->setNeedsPositioningValuesUpdate();
}
needsLayout = true;
}
}
}
SubtreeLayoutScope layoutScope(*child);
// Resource containers are nasty: they can invalidate clients outside the current SubtreeLayoutScope.
// Since they only care about viewport size changes (to resolve their relative lengths), we trigger
// their invalidation directly from SVGSVGElement::svgAttributeChange() or at a higher
// SubtreeLayoutScope (in RenderView::layout()).
if (needsLayout && !child->isSVGResourceContainer())
layoutScope.setNeedsLayout(child);
layoutResourcesIfNeeded(child);
if (child->needsLayout()) {
child->layout();
// Renderers are responsible for repainting themselves when changing, except
// for the initial paint to avoid potential double-painting caused by non-sensical "old" bounds.
// We could handle this in the individual objects, but for now it's easier to have
// parent containers call repaint(). (RenderBlock::layout* has similar logic.)
if (!childEverHadLayout && !RuntimeEnabledFeatures::repaintAfterLayoutEnabled())
child->paintInvalidationForWholeRenderer();
} else if (layoutSizeChanged) {
notlayoutedObjects.add(child);
}
}
if (!layoutSizeChanged) {
ASSERT(notlayoutedObjects.isEmpty());
return;
}
// If the layout size changed, invalidate all resources of all children that didn't go through the layout() code path.
HashSet<RenderObject*>::iterator end = notlayoutedObjects.end();
for (HashSet<RenderObject*>::iterator it = notlayoutedObjects.begin(); it != end; ++it)
invalidateResourcesOfChildren(*it);
}
void SVGRenderSupport::layoutChildren(RenderObject* start, bool selfNeedsLayout)
{
bool layoutSizeChanged = layoutSizeOfNearestViewportChanged(start);
bool transformChanged = transformToRootChanged(start);
bool hasSVGShadow = rendererHasSVGShadow(start);
bool needsBoundariesUpdate = start->needsBoundariesUpdate();
HashSet<RenderObject*> notlayoutedObjects;
for (RenderObject* child = start->firstChildSlow(); child; child = child->nextSibling()) {
bool needsLayout = selfNeedsLayout;
bool childEverHadLayout = child->everHadLayout();
if (needsBoundariesUpdate && hasSVGShadow) {
// If we have a shadow, our shadow is baked into our children's cached boundaries,
// so they need to update.
child->setNeedsBoundariesUpdate();
needsLayout = true;
}
if (transformChanged) {
// If the transform changed we need to update the text metrics (note: this also happens for layoutSizeChanged=true).
if (child->isSVGText())
toRenderSVGText(child)->setNeedsTextMetricsUpdate();
needsLayout = true;
}
if (layoutSizeChanged) {
// When selfNeedsLayout is false and the layout size changed, we have to check whether this child uses relative lengths
if (SVGElement* element = child->node()->isSVGElement() ? toSVGElement(child->node()) : 0) {
if (element->hasRelativeLengths()) {
// When the layout size changed and when using relative values tell the RenderSVGShape to update its shape object
if (child->isSVGShape())
toRenderSVGShape(child)->setNeedsShapeUpdate();
else if (child->isSVGText()) {
toRenderSVGText(child)->setNeedsTextMetricsUpdate();
toRenderSVGText(child)->setNeedsPositioningValuesUpdate();
}
needsLayout = true;
}
}
}
if (needsLayout)
child->setNeedsLayout(MarkOnlyThis);
if (child->needsLayout()) {
toRenderElement(child)->layout();
// Renderers are responsible for repainting themselves when changing, except
// for the initial paint to avoid potential double-painting caused by non-sensical "old" bounds.
// We could handle this in the individual objects, but for now it's easier to have
// parent containers call repaint(). (RenderBlock::layout* has similar logic.)
if (!childEverHadLayout)
child->repaint();
} else if (layoutSizeChanged)
notlayoutedObjects.add(child);
ASSERT(!child->needsLayout());
}
if (!layoutSizeChanged) {
ASSERT(notlayoutedObjects.isEmpty());
return;
}
// If the layout size changed, invalidate all resources of all children that didn't go through the layout() code path.
HashSet<RenderObject*>::iterator end = notlayoutedObjects.end();
for (HashSet<RenderObject*>::iterator it = notlayoutedObjects.begin(); it != end; ++it)
invalidateResourcesOfChildren(*it);
}
