void RenderNamedFlowThread::checkInvalidRegions()
{
Vector<RenderNamedFlowFragment*> newValidFragments;
for (auto& region : m_invalidRegionList) {
RenderNamedFlowFragment* namedFlowFragment = toRenderNamedFlowFragment(region);
// The only reason a region would be invalid is because it has a parent flow thread.
ASSERT(!namedFlowFragment->isValid() && namedFlowFragment->parentNamedFlowThread());
if (namedFlowFragment->parentNamedFlowThread()->dependsOn(this))
continue;
newValidFragments.append(namedFlowFragment);
}
for (auto& namedFlowFragment : newValidFragments) {
m_invalidRegionList.remove(namedFlowFragment);
namedFlowFragment->parentNamedFlowThread()->m_observerThreadsSet.remove(this);
addFragmentToNamedFlowThread(namedFlowFragment);
}
if (!newValidFragments.isEmpty())
invalidateRegions();
if (m_observerThreadsSet.isEmpty())
return;
// Notify all the flow threads that were dependent on this flow.
// Create a copy of the list first. That's because observers might change the list when calling checkInvalidRegions.
Vector<RenderNamedFlowThread*> observers;
copyToVector(m_observerThreadsSet, observers);
for (auto& flowThread : observers)
flowThread->checkInvalidRegions();
}
void RenderNamedFlowThread::removeRegionFromThread(RenderRegion* renderRegion)
{
ASSERT(renderRegion);
RenderNamedFlowFragment* renderNamedFlowFragment = toRenderNamedFlowFragment(renderRegion);
if (renderNamedFlowFragment->parentNamedFlowThread()) {
if (!renderNamedFlowFragment->isValid()) {
ASSERT(m_invalidRegionList.contains(renderNamedFlowFragment));
m_invalidRegionList.remove(renderNamedFlowFragment);
renderNamedFlowFragment->parentNamedFlowThread()->m_observerThreadsSet.remove(this);
// No need to invalidate the regions rectangles. The removed region
// was not taken into account. Just return here.
return;
}
removeDependencyOnFlowThread(renderNamedFlowFragment->parentNamedFlowThread());
}
ASSERT(m_regionList.contains(renderNamedFlowFragment));
bool wasFirst = m_regionList.first() == renderNamedFlowFragment;
m_regionList.remove(renderNamedFlowFragment);
if (canBeDestroyed())
setMarkForDestruction();
if (!m_regionList.isEmpty() && wasFirst)
updateWritingMode();
invalidateRegions();
}
static PassRefPtr<InspectorObject> buildObjectForElementInfo(Node* node)
{
if (!node->isElementNode() || !node->document().frame())
return nullptr;
RefPtr<InspectorObject> elementInfo = InspectorObject::create();
Element* element = toElement(node);
bool isXHTML = element->document().isXHTMLDocument();
elementInfo->setString("tagName", isXHTML ? element->nodeName() : element->nodeName().lower());
elementInfo->setString("idValue", element->getIdAttribute());
HashSet<AtomicString> usedClassNames;
if (element->hasClass() && element->isStyledElement()) {
StringBuilder classNames;
const SpaceSplitString& classNamesString = toStyledElement(element)->classNames();
size_t classNameCount = classNamesString.size();
for (size_t i = 0; i < classNameCount; ++i) {
const AtomicString& className = classNamesString[i];
if (usedClassNames.contains(className))
continue;
usedClassNames.add(className);
classNames.append('.');
classNames.append(className);
}
elementInfo->setString("className", classNames.toString());
}
RenderElement* renderer = element->renderer();
Frame* containingFrame = node->document().frame();
FrameView* containingView = containingFrame->view();
IntRect boundingBox = pixelSnappedIntRect(containingView->contentsToRootView(renderer->absoluteBoundingBoxRect()));
RenderBoxModelObject* modelObject = renderer->isBoxModelObject() ? toRenderBoxModelObject(renderer) : nullptr;
elementInfo->setString("nodeWidth", String::number(modelObject ? adjustForAbsoluteZoom(modelObject->pixelSnappedOffsetWidth(), *modelObject) : boundingBox.width()));
elementInfo->setString("nodeHeight", String::number(modelObject ? adjustForAbsoluteZoom(modelObject->pixelSnappedOffsetHeight(), *modelObject) : boundingBox.height()));
if (renderer->isRenderNamedFlowFragmentContainer()) {
RenderNamedFlowFragment* region = toRenderBlockFlow(renderer)->renderNamedFlowFragment();
if (region->isValid()) {
RenderFlowThread* flowThread = region->flowThread();
ASSERT(flowThread && flowThread->isRenderNamedFlowThread());
RefPtr<InspectorObject> regionFlowInfo = InspectorObject::create();
regionFlowInfo->setString("name", toRenderNamedFlowThread(flowThread)->flowThreadName());
regionFlowInfo->setArray("regions", buildObjectForCSSRegionsHighlight(region, flowThread));
elementInfo->setObject("regionFlowInfo", regionFlowInfo.release());
}
}
RenderFlowThread* containingFlowThread = renderer->flowThreadContainingBlock();
if (containingFlowThread && containingFlowThread->isRenderNamedFlowThread()) {
RefPtr<InspectorObject> contentFlowInfo = InspectorObject::create();
contentFlowInfo->setString("name", toRenderNamedFlowThread(containingFlowThread)->flowThreadName());
elementInfo->setObject("contentFlowInfo", contentFlowInfo.release());
}
#if ENABLE(CSS_SHAPES)
if (renderer->isBox()) {
RenderBox* renderBox = toRenderBox(renderer);
if (RefPtr<InspectorObject> shapeObject = buildObjectForShapeOutside(containingFrame, renderBox))
elementInfo->setObject("shapeOutsideInfo", shapeObject.release());
}
#endif
// Need to enable AX to get the computed role.
if (!WebCore::AXObjectCache::accessibilityEnabled())
WebCore::AXObjectCache::enableAccessibility();
if (AXObjectCache* axObjectCache = node->document().axObjectCache()) {
if (AccessibilityObject* axObject = axObjectCache->getOrCreate(node))
elementInfo->setString("role", axObject->computedRoleString());
}
return elementInfo.release();
}