void SVGResourcesCache::addResourcesFromLayoutObject(LayoutObject* object, const ComputedStyle& style)
{
ASSERT(object);
ASSERT(!m_cache.contains(object));
const SVGComputedStyle& svgStyle = style.svgStyle();
// Build a list of all resources associated with the passed LayoutObject
OwnPtr<SVGResources> newResources = SVGResources::buildResources(object, svgStyle);
if (!newResources)
return;
// Put object in cache.
SVGResources* resources = m_cache.set(object, newResources.release()).storedValue->value.get();
// Run cycle-detection _afterwards_, so self-references can be caught as well.
SVGResourcesCycleSolver solver(object, resources);
solver.resolveCycles();
// Walk resources and register the layout object at each resources.
HashSet<LayoutSVGResourceContainer*> resourceSet;
resources->buildSetOfResources(resourceSet);
for (auto* resourceContainer : resourceSet)
resourceContainer->addClient(object);
}
void SVGRenderSupport::intersectRepaintRectWithResources(const RenderObject* object, FloatRect& repaintRect)
{
ASSERT(object);
RenderStyle* style = object->style();
ASSERT(style);
const SVGRenderStyle* svgStyle = style->svgStyle();
ASSERT(svgStyle);
RenderObject* renderer = const_cast<RenderObject*>(object);
SVGResources* resources = SVGResourcesCache::cachedResourcesForRenderObject(renderer);
if (!resources) {
if (const ShadowData* shadow = svgStyle->shadow())
shadow->adjustRectForShadow(repaintRect);
return;
}
#if ENABLE(FILTERS)
if (RenderSVGResourceFilter* filter = resources->filter())
repaintRect = filter->resourceBoundingBox(renderer);
#endif
if (RenderSVGResourceClipper* clipper = resources->clipper())
repaintRect.intersect(clipper->resourceBoundingBox(renderer));
if (RenderSVGResourceMasker* masker = resources->masker())
repaintRect.intersect(masker->resourceBoundingBox(renderer));
if (const ShadowData* shadow = svgStyle->shadow())
shadow->adjustRectForShadow(repaintRect);
}
void SVGRenderSupport::finishRenderSVGContent(RenderObject* object, PaintInfo& paintInfo, GraphicsContext* savedContext)
{
#if !ENABLE(FILTERS)
UNUSED_PARAM(savedContext);
#endif
ASSERT(object);
const RenderStyle* style = object->style();
ASSERT(style);
const SVGRenderStyle* svgStyle = style->svgStyle();
ASSERT(svgStyle);
#if ENABLE(FILTERS)
SVGResources* resources = SVGResourcesCache::cachedResourcesForRenderObject(object);
if (resources) {
if (RenderSVGResourceFilter* filter = resources->filter()) {
filter->postApplyResource(object, paintInfo.context, ApplyToDefaultMode, /* path */0);
paintInfo.context = savedContext;
}
}
#endif
if (style->opacity() < 1)
paintInfo.context->endTransparencyLayer();
if (svgStyle->shadow())
paintInfo.context->endTransparencyLayer();
}
void SVGShapePainter::paintMarkers(const PaintInfo& paintInfo, const FloatRect& boundingBox)
{
const Vector<MarkerPosition>* markerPositions = m_layoutSVGShape.markerPositions();
if (!markerPositions || markerPositions->isEmpty())
return;
SVGResources* resources = SVGResourcesCache::cachedResourcesForLayoutObject(&m_layoutSVGShape);
if (!resources)
return;
LayoutSVGResourceMarker* markerStart = resources->markerStart();
LayoutSVGResourceMarker* markerMid = resources->markerMid();
LayoutSVGResourceMarker* markerEnd = resources->markerEnd();
if (!markerStart && !markerMid && !markerEnd)
return;
float strokeWidth = m_layoutSVGShape.strokeWidth();
unsigned size = markerPositions->size();
for (unsigned i = 0; i < size; ++i) {
if (LayoutSVGResourceMarker* marker = SVGMarkerData::markerForType((*markerPositions)[i].type, markerStart, markerMid, markerEnd)) {
SkPictureBuilder pictureBuilder(boundingBox, nullptr, &paintInfo.context);
PaintInfo markerPaintInfo(pictureBuilder.context(), paintInfo);
// It's expensive to track the transformed paint cull rect for each
// marker so just disable culling. The shape paint call will already
// be culled if it is outside the paint info cull rect.
markerPaintInfo.m_cullRect.m_rect = LayoutRect::infiniteIntRect();
paintMarker(markerPaintInfo, *marker, (*markerPositions)[i], strokeWidth);
pictureBuilder.endRecording()->playback(paintInfo.context.canvas());
}
}
}
bool SVGResourcesCycleSolver::resourceContainsCycles(RenderObject* renderer) const
{
ASSERT(renderer);
// First (first loop iteration) operate on the resources of the given
// renderer.
// <marker id="a"> <path marker-start="url(#b)"/> ...
// <marker id="b" marker-start="url(#a)"/>
// Then operate on the child resources of the given renderer.
// <marker id="a"> <path marker-start="url(#b)"/> ...
// <marker id="b"> <path marker-start="url(#a)"/> ...
for (RenderObject* child = renderer; child; child = child->nextInPreOrder(renderer)) {
SVGResources* childResources = SVGResourcesCache::cachedResourcesForRenderObject(child);
if (!childResources)
continue;
// A child of the given 'resource' contains resources.
HashSet<RenderSVGResourceContainer*> childSet;
childResources->buildSetOfResources(childSet);
// Walk all child resources and check whether they reference any resource contained in the resources set.
HashSet<RenderSVGResourceContainer*>::iterator end = childSet.end();
for (HashSet<RenderSVGResourceContainer*>::iterator it = childSet.begin(); it != end; ++it) {
if (m_allResources.contains(*it))
return true;
}
}
return false;
}
FloatRect RenderSVGPath::calculateMarkerBoundsIfNeeded()
{
SVGElement* svgElement = static_cast<SVGElement*>(node());
ASSERT(svgElement && svgElement->document());
if (!svgElement->isStyled())
return FloatRect();
SVGStyledElement* styledElement = static_cast<SVGStyledElement*>(svgElement);
if (!styledElement->supportsMarkers())
return FloatRect();
const SVGRenderStyle* svgStyle = style()->svgStyle();
ASSERT(svgStyle->hasMarkers());
SVGResources* resources = SVGResourcesCache::cachedResourcesForRenderObject(this);
if (!resources)
return FloatRect();
RenderSVGResourceMarker* markerStart = resources->markerStart();
RenderSVGResourceMarker* markerMid = resources->markerMid();
RenderSVGResourceMarker* markerEnd = resources->markerEnd();
if (!markerStart && !markerMid && !markerEnd)
return FloatRect();
return m_markerLayoutInfo.calculateBoundaries(markerStart, markerMid, markerEnd, svgStyle->strokeWidth().value(svgElement), m_path);
}
void SVGResourcesCache::addResourcesFromRenderObject(RenderObject* object, const RenderStyle* style)
{
ASSERT(object);
ASSERT(style);
ASSERT(!m_cache.contains(object));
const SVGRenderStyle* svgStyle = style->svgStyle();
ASSERT(svgStyle);
// Build a list of all resources associated with the passed RenderObject
SVGResources* resources = new SVGResources;
if (!resources->buildCachedResources(object, svgStyle)) {
delete resources;
return;
}
// Put object in cache.
m_cache.set(object, resources);
// Run cycle-detection _afterwards_, so self-references can be caught as well.
SVGResourcesCycleSolver solver(object, resources);
solver.resolveCycles();
// Walk resources and register the render object at each resources.
HashSet<RenderSVGResourceContainer*> resourceSet;
resources->buildSetOfResources(resourceSet);
HashSet<RenderSVGResourceContainer*>::iterator end = resourceSet.end();
for (HashSet<RenderSVGResourceContainer*>::iterator it = resourceSet.begin(); it != end; ++it)
(*it)->addClient(object);
}
void SVGRenderSupport::layoutResourcesIfNeeded(const RenderObject* object)
{
ASSERT(object);
SVGResources* resources = SVGResourcesCache::cachedResourcesForRenderObject(object);
if (resources)
resources->layoutIfNeeded();
}
void SVGResourcesCache::clientLayoutChanged(RenderObject* object)
{
SVGResources* resources = SVGResourcesCache::cachedResourcesForRenderObject(object);
if (!resources)
return;
resources->removeClientFromCache(object);
}
void SVGResourcesCache::clientDestroyed(RenderElement& renderer)
{
SVGResources* resources = SVGResourcesCache::cachedResourcesForRenderObject(renderer);
if (resources)
resources->removeClientFromCache(renderer);
SVGResourcesCache* cache = resourcesCacheFromRenderObject(renderer);
cache->removeResourcesFromRenderer(renderer);
}
void RenderSVGRoot::paintReplaced(PaintInfo& paintInfo, const LayoutPoint& paintOffset)
{
// An empty viewport disables rendering.
if (pixelSnappedBorderBoxRect().isEmpty())
return;
// Don't paint, if the context explicitly disabled it.
if (paintInfo.context->paintingDisabled())
return;
// SVG outlines are painted during PaintPhaseForeground.
if (paintInfo.phase == PaintPhaseOutline || paintInfo.phase == PaintPhaseSelfOutline)
return;
// An empty viewBox also disables rendering.
// (http://www.w3.org/TR/SVG/coords.html#ViewBoxAttribute)
SVGSVGElement* svg = toSVGSVGElement(node());
ASSERT(svg);
if (svg->hasEmptyViewBox())
return;
// Don't paint if we don't have kids, except if we have filters we should paint those.
if (!firstChild()) {
SVGResources* resources = SVGResourcesCache::cachedResourcesForRenderObject(this);
if (!resources || !resources->filter())
return;
}
// Make a copy of the PaintInfo because applyTransform will modify the damage rect.
PaintInfo childPaintInfo(paintInfo);
childPaintInfo.context->save();
// Apply initial viewport clip
if (shouldApplyViewportClip())
childPaintInfo.context->clip(pixelSnappedIntRect(overflowClipRect(paintOffset)));
// Convert from container offsets (html renderers) to a relative transform (svg renderers).
// Transform from our paint container's coordinate system to our local coords.
IntPoint adjustedPaintOffset = roundedIntPoint(paintOffset);
childPaintInfo.applyTransform(AffineTransform::translation(adjustedPaintOffset.x(), adjustedPaintOffset.y()) * localToBorderBoxTransform());
// SVGRenderingContext must be destroyed before we restore the childPaintInfo.context, because a filter may have
// changed the context and it is only reverted when the SVGRenderingContext destructor finishes applying the filter.
{
SVGRenderingContext renderingContext;
bool continueRendering = true;
if (childPaintInfo.phase == PaintPhaseForeground) {
renderingContext.prepareToRenderSVGContent(this, childPaintInfo);
continueRendering = renderingContext.isRenderingPrepared();
}
if (continueRendering)
RenderBox::paint(childPaintInfo, LayoutPoint());
}
childPaintInfo.context->restore();
}
bool RenderSVGRoot::selfWillPaint()
{
#if ENABLE(FILTERS)
SVGResources* resources = SVGResourcesCache::cachedResourcesForRenderObject(this);
return resources && resources->filter();
#else
return false;
#endif
}
bool SVGClipPainter::applyClippingToContext(const LayoutObject& target, const FloatRect& targetBoundingBox,
const FloatRect& paintInvalidationRect, GraphicsContext* context, ClipperState& clipperState)
{
ASSERT(context);
ASSERT(clipperState == ClipperNotApplied);
ASSERT_WITH_SECURITY_IMPLICATION(!m_clip.needsLayout());
if (paintInvalidationRect.isEmpty() || m_clip.hasCycle())
return false;
SVGClipExpansionCycleHelper inClipExpansionChange(m_clip);
AffineTransform animatedLocalTransform = toSVGClipPathElement(m_clip.element())->calculateAnimatedLocalTransform();
// When drawing a clip for non-SVG elements, the CTM does not include the zoom factor.
// In this case, we need to apply the zoom scale explicitly - but only for clips with
// userSpaceOnUse units (the zoom is accounted for objectBoundingBox-resolved lengths).
if (!target.isSVG() && m_clip.clipPathUnits() == SVGUnitTypes::SVG_UNIT_TYPE_USERSPACEONUSE) {
ASSERT(m_clip.style());
animatedLocalTransform.scale(m_clip.style()->effectiveZoom());
}
// First, try to apply the clip as a clipPath.
if (m_clip.tryPathOnlyClipping(target, context, animatedLocalTransform, targetBoundingBox)) {
clipperState = ClipperAppliedPath;
return true;
}
// Fall back to masking.
clipperState = ClipperAppliedMask;
// Begin compositing the clip mask.
CompositingRecorder::beginCompositing(*context, target, SkXfermode::kSrcOver_Mode, 1, &paintInvalidationRect);
{
TransformRecorder recorder(*context, target, animatedLocalTransform);
// clipPath can also be clipped by another clipPath.
SVGResources* resources = SVGResourcesCache::cachedResourcesForLayoutObject(&m_clip);
LayoutSVGResourceClipper* clipPathClipper = resources ? resources->clipper() : 0;
ClipperState clipPathClipperState = ClipperNotApplied;
if (clipPathClipper && !SVGClipPainter(*clipPathClipper).applyClippingToContext(m_clip, targetBoundingBox, paintInvalidationRect, context, clipPathClipperState)) {
// End the clip mask's compositor.
CompositingRecorder::endCompositing(*context, target);
return false;
}
drawClipMaskContent(context, target, targetBoundingBox);
if (clipPathClipper)
SVGClipPainter(*clipPathClipper).postApplyStatefulResource(m_clip, context, clipPathClipperState);
}
// Masked content layer start.
CompositingRecorder::beginCompositing(*context, target, SkXfermode::kSrcIn_Mode, 1, &paintInvalidationRect);
return true;
}
bool SVGRenderSupport::prepareToRenderSVGContent(RenderObject* object, PaintInfo& paintInfo)
{
ASSERT(object);
RenderStyle* style = object->style();
ASSERT(style);
const SVGRenderStyle* svgStyle = style->svgStyle();
ASSERT(svgStyle);
// Setup transparency layers before setting up SVG resources!
float opacity = style->opacity();
const ShadowData* shadow = svgStyle->shadow();
if (opacity < 1 || shadow) {
FloatRect repaintRect = object->repaintRectInLocalCoordinates();
if (opacity < 1) {
paintInfo.context->clip(repaintRect);
paintInfo.context->beginTransparencyLayer(opacity);
}
if (shadow) {
paintInfo.context->clip(repaintRect);
paintInfo.context->setShadow(IntSize(shadow->x(), shadow->y()), shadow->blur(), shadow->color(), style->colorSpace());
paintInfo.context->beginTransparencyLayer(1);
}
}
SVGResources* resources = SVGResourcesCache::cachedResourcesForRenderObject(object);
if (!resources) {
#if ENABLE(FILTERS)
if (svgStyle->hasFilter())
return false;
#endif
return true;
}
if (RenderSVGResourceMasker* masker = resources->masker()) {
if (!masker->applyResource(object, style, paintInfo.context, ApplyToDefaultMode))
return false;
}
if (RenderSVGResourceClipper* clipper = resources->clipper()) {
if (!clipper->applyResource(object, style, paintInfo.context, ApplyToDefaultMode))
return false;
}
#if ENABLE(FILTERS)
if (RenderSVGResourceFilter* filter = resources->filter()) {
if (!filter->applyResource(object, style, paintInfo.context, ApplyToDefaultMode))
return false;
}
#endif
return true;
}
bool RenderSVGResourceClipper::applyClippingToContext(RenderObject* target, const FloatRect& targetBoundingBox,
const FloatRect& repaintRect, GraphicsContext* context, ClipperContext& clipperContext)
{
ASSERT(target);
ASSERT(context);
ASSERT(clipperContext.state == ClipperContext::NotAppliedState);
ASSERT_WITH_SECURITY_IMPLICATION(!needsLayout());
if (repaintRect.isEmpty() || m_inClipExpansion)
return false;
TemporaryChange<bool> inClipExpansionChange(m_inClipExpansion, true);
// First, try to apply the clip as a clipPath.
AffineTransform animatedLocalTransform = toSVGClipPathElement(element())->animatedLocalTransform();
if (tryPathOnlyClipping(context, animatedLocalTransform, targetBoundingBox)) {
clipperContext.state = ClipperContext::AppliedPathState;
return true;
}
// Fall back to masking.
clipperContext.state = ClipperContext::AppliedMaskState;
// Mask layer start
context->beginTransparencyLayer(1, &repaintRect);
{
GraphicsContextStateSaver maskContentSaver(*context);
context->concatCTM(animatedLocalTransform);
// clipPath can also be clipped by another clipPath.
SVGResources* resources = SVGResourcesCache::cachedResourcesForRenderObject(this);
RenderSVGResourceClipper* clipPathClipper = 0;
ClipperContext clipPathClipperContext;
if (resources && (clipPathClipper = resources->clipper())) {
if (!clipPathClipper->applyClippingToContext(this, targetBoundingBox, repaintRect, context, clipPathClipperContext)) {
// FIXME: Awkward state micro-management. Ideally, GraphicsContextStateSaver should
// a) pop saveLayers also
// b) pop multiple states if needed (similarly to SkCanvas::restoreToCount())
// Then we should be able to replace this mess with a single, top-level GCSS.
maskContentSaver.restore();
context->restoreLayer();
return false;
}
}
drawClipMaskContent(context, targetBoundingBox);
if (clipPathClipper)
clipPathClipper->postApplyStatefulResource(this, context, clipPathClipperContext);
}
// Masked content layer start.
context->beginLayer(1, CompositeSourceIn, &repaintRect);
return true;
}
void RenderSVGRoot::paintReplaced(PaintInfo& paintInfo, const LayoutPoint& paintOffset)
{
// An empty viewport disables rendering.
if (pixelSnappedBorderBoxRect().isEmpty())
return;
// Don't paint, if the context explicitely disabled it.
if (paintInfo.context->paintingDisabled())
return;
Page* page = 0;
if (Frame* frame = this->frame())
page = frame->page();
// Don't paint if we don't have kids, except if we have filters we should paint those.
if (!firstChild()) {
SVGResources* resources = SVGResourcesCache::cachedResourcesForRenderObject(this);
if (!resources || !resources->filter()) {
if (page && paintInfo.phase == PaintPhaseForeground)
page->addRelevantUnpaintedObject(this, visualOverflowRect());
return;
}
}
if (page && paintInfo.phase == PaintPhaseForeground)
page->addRelevantRepaintedObject(this, visualOverflowRect());
// Make a copy of the PaintInfo because applyTransform will modify the damage rect.
PaintInfo childPaintInfo(paintInfo);
childPaintInfo.context->save();
// Apply initial viewport clip - not affected by overflow handling
childPaintInfo.context->clip(pixelSnappedIntRect(overflowClipRect(paintOffset, paintInfo.renderRegion)));
// Convert from container offsets (html renderers) to a relative transform (svg renderers).
// Transform from our paint container's coordinate system to our local coords.
IntPoint adjustedPaintOffset = roundedIntPoint(paintOffset);
childPaintInfo.applyTransform(AffineTransform::translation(adjustedPaintOffset.x(), adjustedPaintOffset.y()) * localToBorderBoxTransform());
// SVGRenderingContext must be destroyed before we restore the childPaintInfo.context, because a filter may have
// changed the context and it is only reverted when the SVGRenderingContext destructor finishes applying the filter.
{
SVGRenderingContext renderingContext;
bool continueRendering = true;
if (childPaintInfo.phase == PaintPhaseForeground) {
renderingContext.prepareToRenderSVGContent(this, childPaintInfo);
continueRendering = renderingContext.isRenderingPrepared();
}
if (continueRendering)
RenderBox::paint(childPaintInfo, LayoutPoint());
}
childPaintInfo.context->restore();
}
void SVGResourcesCache::clientDestroyed(LayoutObject* layoutObject)
{
ASSERT(layoutObject);
SVGResources* resources = SVGResourcesCache::cachedResourcesForLayoutObject(layoutObject);
if (resources)
resources->removeClientFromCache(layoutObject);
SVGResourcesCache* cache = resourcesCacheFromLayoutObject(layoutObject);
cache->removeResourcesFromLayoutObject(layoutObject);
}
void SVGResourcesCache::clientLayoutChanged(LayoutObject* object)
{
SVGResources* resources = SVGResourcesCache::cachedResourcesForLayoutObject(object);
if (!resources)
return;
// Invalidate the resources if either the LayoutObject itself changed,
// or we have filter resources, which could depend on the layout of children.
if (object->selfNeedsLayout() || resources->filter())
resources->removeClientFromCache(object);
}
void SVGResourcesCache::clientLayoutChanged(RenderElement& renderer)
{
SVGResources* resources = SVGResourcesCache::cachedResourcesForRenderObject(renderer);
if (!resources)
return;
// Invalidate the resources if either the RenderElement itself changed,
// or we have filter resources, which could depend on the layout of children.
if (renderer.selfNeedsLayout())
resources->removeClientFromCache(renderer);
}
bool RenderSVGResourceClipper::applyClippingToContext(RenderObject* object, const FloatRect& objectBoundingBox,
const FloatRect& repaintRect, GraphicsContext* context)
{
bool missingClipperData = !m_clipper.contains(object);
if (missingClipperData)
m_clipper.set(object, new ClipperData);
bool shouldCreateClipData = false;
AffineTransform animatedLocalTransform = static_cast<SVGClipPathElement*>(node())->animatedLocalTransform();
ClipperData* clipperData = m_clipper.get(object);
if (!clipperData->clipMaskImage) {
if (pathOnlyClipping(context, animatedLocalTransform, objectBoundingBox))
return true;
shouldCreateClipData = true;
}
AffineTransform absoluteTransform;
SVGRenderingContext::calculateTransformationToOutermostCoordinateSystem(object, absoluteTransform);
if (shouldCreateClipData && !repaintRect.isEmpty()) {
if (!SVGRenderingContext::createImageBuffer(repaintRect, absoluteTransform, clipperData->clipMaskImage, ColorSpaceDeviceRGB, Unaccelerated))
return false;
GraphicsContext* maskContext = clipperData->clipMaskImage->context();
ASSERT(maskContext);
maskContext->concatCTM(animatedLocalTransform);
// clipPath can also be clipped by another clipPath.
SVGResources* resources = SVGResourcesCache::cachedResourcesForRenderObject(this);
RenderSVGResourceClipper* clipper;
bool succeeded;
if (resources && (clipper = resources->clipper())) {
GraphicsContextStateSaver stateSaver(*maskContext);
if (!clipper->applyClippingToContext(this, objectBoundingBox, repaintRect, maskContext))
return false;
succeeded = drawContentIntoMaskImage(clipperData, objectBoundingBox);
// The context restore applies the clipping on non-CG platforms.
} else
succeeded = drawContentIntoMaskImage(clipperData, objectBoundingBox);
if (!succeeded)
clipperData->clipMaskImage.clear();
}
if (!clipperData->clipMaskImage)
return false;
SVGRenderingContext::clipToImageBuffer(context, absoluteTransform, repaintRect, clipperData->clipMaskImage, missingClipperData);
return true;
}
bool SVGRenderSupport::pointInClippingArea(const RenderElement& renderer, const FloatPoint& point)
{
// We just take clippers into account to determine if a point is on the node. The Specification may
// change later and we also need to check maskers.
SVGResources* resources = SVGResourcesCache::cachedResourcesForRenderObject(renderer);
if (!resources)
return true;
if (RenderSVGResourceClipper* clipper = resources->clipper())
return clipper->hitTestClipContent(renderer.objectBoundingBox(), point);
return true;
}
bool SVGRenderSupport::filtersForceContainerLayout(RenderObject* object)
{
// If any of this container's children need to be laid out, and a filter is applied
// to the container, we need to repaint the entire container.
if (!object->normalChildNeedsLayout())
return false;
SVGResources* resources = SVGResourcesCache::cachedResourcesForRenderObject(object);
if (!resources || !resources->filter())
return false;
return true;
}
bool SVGLayoutSupport::pointInClippingArea(LayoutObject* object, const FloatPoint& point)
{
ASSERT(object);
// We just take clippers into account to determine if a point is on the node. The Specification may
// change later and we also need to check maskers.
SVGResources* resources = SVGResourcesCache::cachedResourcesForLayoutObject(object);
if (!resources)
return true;
if (LayoutSVGResourceClipper* clipper = resources->clipper())
return clipper->hitTestClipContent(object->objectBoundingBox(), point);
return true;
}
void SVGResourcesCache::clientUpdatedFromElement(RenderObject* renderer, const RenderStyle* newStyle)
{
ASSERT(renderer);
ASSERT(renderer->parent());
SVGResourcesCache* cache = resourcesCacheFromRenderObject(renderer);
cache->removeResourcesFromRenderObject(renderer);
cache->addResourcesFromRenderObject(renderer, newStyle);
#if ENABLE(FILTERS)
SVGResources* resources = SVGResourcesCache::cachedResourcesForRenderObject(renderer);
if (resources && resources->filter())
resources->removeClientFromCache(renderer);
#endif
}
void LayoutSVGResourceContainer::detachAllClients()
{
for (auto* client : m_clients) {
// Unlink the resource from the client's SVGResources. (The actual
// removal will be signaled after processing all the clients.)
SVGResources* resources = SVGResourcesCache::cachedResourcesForLayoutObject(client);
ASSERT(resources); // Or else the client wouldn't be in the list in the first place.
resources->resourceDestroyed(this);
// Add a pending resolution based on the id of the old resource.
Element* clientElement = toElement(client->node());
svgExtensionsFromElement(clientElement).addPendingResource(m_id, clientElement);
}
removeAllClientsFromCache();
}
void SVGRenderSupport::intersectRepaintRectWithResources(const RenderObject* renderer, FloatRect& repaintRect)
{
ASSERT(renderer);
SVGResources* resources = SVGResourcesCache::cachedResourcesForRenderObject(renderer);
if (!resources)
return;
if (RenderSVGResourceFilter* filter = resources->filter())
repaintRect = filter->resourceBoundingBox(renderer);
if (RenderSVGResourceClipper* clipper = resources->clipper())
repaintRect.intersect(clipper->resourceBoundingBox(renderer));
if (RenderSVGResourceMasker* masker = resources->masker())
repaintRect.intersect(masker->resourceBoundingBox(renderer));
}
void SVGRenderSupport::intersectRepaintRectWithResources(const RenderElement& renderer, FloatRect& repaintRect)
{
SVGResources* resources = SVGResourcesCache::cachedResourcesForRenderObject(&renderer);
if (!resources)
return;
#if ENABLE(FILTERS)
if (RenderSVGResourceFilter* filter = resources->filter())
repaintRect = filter->resourceBoundingBox(renderer);
#endif
if (RenderSVGResourceClipper* clipper = resources->clipper())
repaintRect.intersect(clipper->resourceBoundingBox(renderer));
if (RenderSVGResourceMasker* masker = resources->masker())
repaintRect.intersect(masker->resourceBoundingBox(renderer));
}
void SVGLayoutSupport::intersectPaintInvalidationRectWithResources(const LayoutObject* layoutObject, FloatRect& paintInvalidationRect)
{
ASSERT(layoutObject);
SVGResources* resources = SVGResourcesCache::cachedResourcesForLayoutObject(layoutObject);
if (!resources)
return;
if (LayoutSVGResourceFilter* filter = resources->filter())
paintInvalidationRect = filter->resourceBoundingBox(layoutObject);
if (LayoutSVGResourceClipper* clipper = resources->clipper())
paintInvalidationRect.intersect(clipper->resourceBoundingBox(layoutObject));
if (LayoutSVGResourceMasker* masker = resources->masker())
paintInvalidationRect.intersect(masker->resourceBoundingBox(layoutObject));
}
void SVGResourcesCache::removeResourcesFromRenderObject(RenderObject* object)
{
if (!m_cache.contains(object))
return;
SVGResources* resources = m_cache.get(object);
// Walk resources and register the render object at each resources.
HashSet<RenderSVGResourceContainer*> resourceSet;
resources->buildSetOfResources(resourceSet);
HashSet<RenderSVGResourceContainer*>::iterator end = resourceSet.end();
for (HashSet<RenderSVGResourceContainer*>::iterator it = resourceSet.begin(); it != end; ++it)
(*it)->removeClient(object);
delete m_cache.take(object);
}
void RenderSVGRoot::paintReplaced(PaintInfo& paintInfo, const LayoutPoint& adjustedPaintOffset)
{
// An empty viewport disables rendering.
if (borderBoxRect().isEmpty())
return;
// Don't paint, if the context explicitely disabled it.
if (paintInfo.context->paintingDisabled())
return;
// Don't paint if we don't have kids, except if we have filters we should paint those.
if (!firstChild()) {
SVGResources* resources = SVGResourcesCache::cachedResourcesForRenderObject(this);
if (!resources || !resources->filter())
return;
}
if (Frame* frame = this->frame()) {
if (Page* page = frame->page())
page->addRelevantRepaintedObject(this, paintInfo.rect);
}
// Make a copy of the PaintInfo because applyTransform will modify the damage rect.
PaintInfo childPaintInfo(paintInfo);
childPaintInfo.context->save();
// Apply initial viewport clip - not affected by overflow handling
childPaintInfo.context->clip(overflowClipRect(adjustedPaintOffset, paintInfo.renderRegion));
// Convert from container offsets (html renderers) to a relative transform (svg renderers).
// Transform from our paint container's coordinate system to our local coords.
childPaintInfo.applyTransform(AffineTransform::translation(adjustedPaintOffset.x() - x(), adjustedPaintOffset.y() - y()) * localToParentTransform());
bool continueRendering = true;
if (childPaintInfo.phase == PaintPhaseForeground)
continueRendering = SVGRenderSupport::prepareToRenderSVGContent(this, childPaintInfo);
if (continueRendering)
RenderBox::paint(childPaintInfo, LayoutPoint());
if (childPaintInfo.phase == PaintPhaseForeground)
SVGRenderSupport::finishRenderSVGContent(this, childPaintInfo, paintInfo.context);
childPaintInfo.context->restore();
}
