void RadioButtonGroup::remove(HTMLInputElement* button)
{
ASSERT(button->type() == InputTypeNames::radio);
WillBeHeapHashSet<RawPtrWillBeMember<HTMLInputElement>>::iterator it = m_members.find(button);
if (it == m_members.end())
return;
bool wasValid = isValid();
m_members.remove(it);
if (button->isRequired()) {
ASSERT(m_requiredCount);
--m_requiredCount;
}
if (m_checkedButton == button)
m_checkedButton = nullptr;
if (m_members.isEmpty()) {
ASSERT(!m_requiredCount);
ASSERT(!m_checkedButton);
} else if (wasValid != isValid()) {
setNeedsValidityCheckForAllButtons();
}
if (!wasValid) {
// A radio button not in a group is always valid. We need to make it
// valid only if the group was invalid.
button->setNeedsValidityCheck();
}
}
static void sortBlock(unsigned from, unsigned to, WillBeHeapVector<NodeSetVector>& parentMatrix, bool mayContainAttributeNodes)
{
// Should not call this function with less that two nodes to sort.
ASSERT(from + 1 < to);
unsigned minDepth = UINT_MAX;
for (unsigned i = from; i < to; ++i) {
unsigned depth = parentMatrix[i].size() - 1;
if (minDepth > depth)
minDepth = depth;
}
// Find the common ancestor.
unsigned commonAncestorDepth = minDepth;
Node* commonAncestor;
while (true) {
commonAncestor = parentWithDepth(commonAncestorDepth, parentMatrix[from]);
if (commonAncestorDepth == 0)
break;
bool allEqual = true;
for (unsigned i = from + 1; i < to; ++i) {
if (commonAncestor != parentWithDepth(commonAncestorDepth, parentMatrix[i])) {
allEqual = false;
break;
}
}
if (allEqual)
break;
--commonAncestorDepth;
}
if (commonAncestorDepth == minDepth) {
// One of the nodes is the common ancestor => it is the first in
// document order. Find it and move it to the beginning.
for (unsigned i = from; i < to; ++i) {
if (commonAncestor == parentMatrix[i][0]) {
parentMatrix[i].swap(parentMatrix[from]);
if (from + 2 < to)
sortBlock(from + 1, to, parentMatrix, mayContainAttributeNodes);
return;
}
}
}
if (mayContainAttributeNodes && commonAncestor->isElementNode()) {
// The attribute nodes and namespace nodes of an element occur before
// the children of the element. The namespace nodes are defined to occur
// before the attribute nodes. The relative order of namespace nodes is
// implementation-dependent. The relative order of attribute nodes is
// implementation-dependent.
unsigned sortedEnd = from;
// FIXME: namespace nodes are not implemented.
for (unsigned i = sortedEnd; i < to; ++i) {
Node* n = parentMatrix[i][0];
if (n->isAttributeNode() && toAttr(n)->ownerElement() == commonAncestor)
parentMatrix[i].swap(parentMatrix[sortedEnd++]);
}
if (sortedEnd != from) {
if (to - sortedEnd > 1)
sortBlock(sortedEnd, to, parentMatrix, mayContainAttributeNodes);
return;
}
}
// Children nodes of the common ancestor induce a subdivision of our
// node-set. Sort it according to this subdivision, and recursively sort
// each group.
WillBeHeapHashSet<RawPtrWillBeMember<Node> > parentNodes;
for (unsigned i = from; i < to; ++i)
parentNodes.add(parentWithDepth(commonAncestorDepth + 1, parentMatrix[i]));
unsigned previousGroupEnd = from;
unsigned groupEnd = from;
for (Node* n = commonAncestor->firstChild(); n; n = n->nextSibling()) {
// If parentNodes contains the node, perform a linear search to move its
// children in the node-set to the beginning.
if (parentNodes.contains(n)) {
for (unsigned i = groupEnd; i < to; ++i) {
if (parentWithDepth(commonAncestorDepth + 1, parentMatrix[i]) == n)
parentMatrix[i].swap(parentMatrix[groupEnd++]);
}
if (groupEnd - previousGroupEnd > 1)
sortBlock(previousGroupEnd, groupEnd, parentMatrix, mayContainAttributeNodes);
ASSERT(previousGroupEnd != groupEnd);
previousGroupEnd = groupEnd;
#ifndef NDEBUG
parentNodes.remove(n);
#endif
}
}
ASSERT(parentNodes.isEmpty());
}