void DeleteSelectionCommand::removeNode(PassRefPtr<Node> node)
{
if (!node)
return;
if (m_startRoot != m_endRoot && !(node->isDescendantOf(m_startRoot.get()) && node->isDescendantOf(m_endRoot.get()))) {
// If a node is not in both the start and end editable roots, remove it only if its inside an editable region.
if (!node->parentNode()->rendererIsEditable()) {
// Don't remove non-editable atomic nodes.
if (!node->firstChild())
return;
// Search this non-editable region for editable regions to empty.
RefPtr<Node> child = node->firstChild();
while (child) {
RefPtr<Node> nextChild = child->nextSibling();
removeNode(child.get());
// Bail if nextChild is no longer node's child.
if (nextChild && nextChild->parentNode() != node)
return;
child = nextChild;
}
// Don't remove editable regions that are inside non-editable ones, just clear them.
return;
}
}
if (isTableStructureNode(node.get()) || node == node->rootEditableElement()) {
// Do not remove an element of table structure; remove its contents.
// Likewise for the root editable element.
Node* child = node->firstChild();
while (child) {
Node* remove = child;
child = child->nextSibling();
removeNode(remove);
}
// Make sure empty cell has some height, if a placeholder can be inserted.
document()->updateLayoutIgnorePendingStylesheets();
RenderObject *r = node->renderer();
if (r && r->isTableCell() && toRenderTableCell(r)->contentHeight() <= 0) {
Position firstEditablePosition = firstEditablePositionInNode(node.get());
if (firstEditablePosition.isNotNull())
insertBlockPlaceholder(firstEditablePosition);
}
return;
}
if (node == m_startBlock && !isEndOfBlock(VisiblePosition(firstPositionInNode(m_startBlock.get())).previous()))
m_needPlaceholder = true;
else if (node == m_endBlock && !isStartOfBlock(VisiblePosition(lastPositionInNode(m_startBlock.get())).next()))
m_needPlaceholder = true;
// FIXME: Update the endpoints of the range being deleted.
updatePositionForNodeRemoval(m_endingPosition, node.get());
updatePositionForNodeRemoval(m_leadingWhitespace, node.get());
updatePositionForNodeRemoval(m_trailingWhitespace, node.get());
CompositeEditCommand::removeNode(node);
}
void replaceChildrenWithFragment(ContainerNode* container, PassRefPtr<DocumentFragment> fragment, ExceptionState& exceptionState)
{
ASSERT(container);
RefPtr<ContainerNode> containerNode(container);
ChildListMutationScope mutation(*containerNode);
if (!fragment->firstChild()) {
containerNode->removeChildren();
return;
}
// FIXME: This is wrong if containerNode->firstChild() has more than one ref!
if (containerNode->hasOneTextChild() && fragment->hasOneTextChild()) {
toText(containerNode->firstChild())->setData(toText(fragment->firstChild())->data());
return;
}
// FIXME: No need to replace the child it is a text node and its contents are already == text.
if (containerNode->hasOneChild()) {
containerNode->replaceChild(fragment, containerNode->firstChild(), exceptionState);
return;
}
containerNode->removeChildren();
containerNode->appendChild(fragment, exceptionState);
}
PassRefPtr<StaticNodeList> createSelectorNodeList(PassRefPtr<Node> rootNode, CSSSelector* querySelector)
{
Vector<RefPtr<Node> > nodes;
Document* document = rootNode->document();
AtomicString selectorValue = querySelector->m_value;
if (!querySelector->next() && querySelector->m_match == CSSSelector::Id && !document->containsMultipleElementsWithId(selectorValue)) {
Element* element = document->getElementById(selectorValue);
if (element && (rootNode->isDocumentNode() || element->isDescendantOf(rootNode.get())))
nodes.append(element);
} else {
CSSStyleSelector::SelectorChecker selectorChecker(document, !document->inCompatMode());
for (Node* n = rootNode->firstChild(); n; n = n->traverseNextNode(rootNode.get())) {
if (n->isElementNode()) {
Element* element = static_cast<Element*>(n);
for (CSSSelector* selector = querySelector; selector; selector = selector->next()) {
if (selectorChecker.checkSelector(selector, element)) {
nodes.append(n);
break;
}
}
}
}
}
return StaticNodeList::adopt(nodes);
}
static void replaceChildrenWithFragment(HTMLElement* element, PassRefPtr<DocumentFragment> fragment, ExceptionCode& ec)
{
if (!fragment->firstChild()) {
element->removeChildren();
return;
}
if (hasOneTextChild(element) && hasOneTextChild(fragment.get())) {
static_cast<Text*>(element->firstChild())->setData(static_cast<Text*>(fragment->firstChild())->string(), ec);
return;
}
if (hasOneChild(element)) {
element->replaceChild(fragment, element->firstChild(), ec);
return;
}
element->removeChildren();
element->appendChild(fragment, ec);
}
void replaceChildrenWithFragment(ContainerNode& container, PassRefPtr<DocumentFragment> fragment, ExceptionCode& ec)
{
Ref<ContainerNode> containerNode(container);
ChildListMutationScope mutation(containerNode.get());
if (!fragment->firstChild()) {
containerNode->removeChildren();
return;
}
if (hasOneTextChild(&containerNode.get()) && hasOneTextChild(fragment.get())) {
toText(containerNode->firstChild())->setData(toText(fragment->firstChild())->data(), ec);
return;
}
if (hasOneChild(&containerNode.get())) {
containerNode->replaceChild(fragment, containerNode->firstChild(), ec);
return;
}
containerNode->removeChildren();
containerNode->appendChild(fragment, ec);
}
void replaceChildrenWithFragment(ContainerNode& container, PassRefPtr<DocumentFragment> fragment, ExceptionCode& ec)
{
Ref<ContainerNode> containerNode(container);
ChildListMutationScope mutation(containerNode);
if (!fragment->firstChild()) {
containerNode->removeChildren();
return;
}
if (hasOneTextChild(containerNode) && hasOneTextChild(*fragment)) {
downcast<Text>(*containerNode->firstChild()).setData(downcast<Text>(*fragment->firstChild()).data(), ec);
return;
}
if (hasOneChild(containerNode)) {
containerNode->replaceChild(fragment, containerNode->firstChild(), ec);
return;
}
containerNode->removeChildren();
containerNode->appendChild(fragment, ec);
}