void
nsTreeContentView::ToggleOpenState(int32_t aRow, ErrorResult& aError)
{
if (!IsValidRowIndex(aRow)) {
aError.Throw(NS_ERROR_INVALID_ARG);
return;
}
// We don't serialize content right here, since content might be generated
// lazily.
Row* row = mRows[aRow].get();
if (row->IsOpen())
row->mContent->SetAttr(kNameSpaceID_None, nsGkAtoms::open, NS_LITERAL_STRING("false"), true);
else
row->mContent->SetAttr(kNameSpaceID_None, nsGkAtoms::open, NS_LITERAL_STRING("true"), true);
}
NS_IMETHODIMP
nsTreeContentView::ToggleOpenState(int32_t aIndex)
{
NS_PRECONDITION(aIndex >= 0 && aIndex < int32_t(mRows.Length()), "bad index");
if (aIndex < 0 || aIndex >= int32_t(mRows.Length()))
return NS_ERROR_INVALID_ARG;
// We don't serialize content right here, since content might be generated
// lazily.
Row* row = mRows[aIndex];
if (row->IsOpen())
row->mContent->SetAttr(kNameSpaceID_None, nsGkAtoms::open, NS_LITERAL_STRING("false"), true);
else
row->mContent->SetAttr(kNameSpaceID_None, nsGkAtoms::open, NS_LITERAL_STRING("true"), true);
return NS_OK;
}
void
nsTreeContentView::AttributeChanged(nsIDocument* aDocument,
dom::Element* aElement,
int32_t aNameSpaceID,
nsAtom* aAttribute,
int32_t aModType,
const nsAttrValue* aOldValue)
{
// Lots of codepaths under here that do all sorts of stuff, so be safe.
nsCOMPtr<nsIMutationObserver> kungFuDeathGrip(this);
// Make sure this notification concerns us.
// First check the tag to see if it's one that we care about.
if (mBoxObject && (aElement == mRoot || aElement == mBody)) {
mBoxObject->ClearStyleAndImageCaches();
mBoxObject->Invalidate();
}
// We don't consider non-XUL nodes.
nsIContent* parent = nullptr;
if (!aElement->IsXULElement() ||
((parent = aElement->GetParent()) && !parent->IsXULElement())) {
return;
}
if (!aElement->IsAnyOfXULElements(nsGkAtoms::treecol,
nsGkAtoms::treeitem,
nsGkAtoms::treeseparator,
nsGkAtoms::treerow,
nsGkAtoms::treecell)) {
return;
}
// If we have a legal tag, go up to the tree/select and make sure
// that it's ours.
for (nsIContent* element = aElement; element != mBody; element = element->GetParent()) {
if (!element)
return; // this is not for us
if (element->IsXULElement(nsGkAtoms::tree))
return; // this is not for us
}
// Handle changes of the hidden attribute.
if (aAttribute == nsGkAtoms::hidden &&
aElement->IsAnyOfXULElements(nsGkAtoms::treeitem,
nsGkAtoms::treeseparator)) {
bool hidden = aElement->AttrValueIs(kNameSpaceID_None,
nsGkAtoms::hidden,
nsGkAtoms::_true, eCaseMatters);
int32_t index = FindContent(aElement);
if (hidden && index >= 0) {
// Hide this row along with its children.
int32_t count = RemoveRow(index);
if (mBoxObject)
mBoxObject->RowCountChanged(index, -count);
}
else if (!hidden && index < 0) {
// Show this row along with its children.
nsCOMPtr<nsIContent> parent = aElement->GetParent();
if (parent) {
InsertRowFor(parent, aElement);
}
}
return;
}
if (aElement->IsXULElement(nsGkAtoms::treecol)) {
if (aAttribute == nsGkAtoms::properties) {
if (mBoxObject) {
nsCOMPtr<nsITreeColumns> cols;
mBoxObject->GetColumns(getter_AddRefs(cols));
if (cols) {
nsCOMPtr<nsIDOMElement> element = do_QueryInterface(aElement);
nsCOMPtr<nsITreeColumn> col;
cols->GetColumnFor(element, getter_AddRefs(col));
mBoxObject->InvalidateColumn(col);
}
}
}
}
else if (aElement->IsXULElement(nsGkAtoms::treeitem)) {
int32_t index = FindContent(aElement);
if (index >= 0) {
Row* row = mRows[index].get();
if (aAttribute == nsGkAtoms::container) {
bool isContainer =
aElement->AttrValueIs(kNameSpaceID_None, nsGkAtoms::container,
nsGkAtoms::_true, eCaseMatters);
row->SetContainer(isContainer);
if (mBoxObject)
mBoxObject->InvalidateRow(index);
}
else if (aAttribute == nsGkAtoms::open) {
bool isOpen =
aElement->AttrValueIs(kNameSpaceID_None, nsGkAtoms::open,
nsGkAtoms::_true, eCaseMatters);
bool wasOpen = row->IsOpen();
if (! isOpen && wasOpen)
CloseContainer(index);
else if (isOpen && ! wasOpen)
OpenContainer(index);
}
else if (aAttribute == nsGkAtoms::empty) {
bool isEmpty =
aElement->AttrValueIs(kNameSpaceID_None, nsGkAtoms::empty,
nsGkAtoms::_true, eCaseMatters);
row->SetEmpty(isEmpty);
if (mBoxObject)
mBoxObject->InvalidateRow(index);
}
}
}
else if (aElement->IsXULElement(nsGkAtoms::treeseparator)) {
int32_t index = FindContent(aElement);
if (index >= 0) {
if (aAttribute == nsGkAtoms::properties && mBoxObject) {
mBoxObject->InvalidateRow(index);
}
}
}
else if (aElement->IsXULElement(nsGkAtoms::treerow)) {
if (aAttribute == nsGkAtoms::properties) {
nsCOMPtr<nsIContent> parent = aElement->GetParent();
if (parent) {
int32_t index = FindContent(parent);
if (index >= 0 && mBoxObject) {
mBoxObject->InvalidateRow(index);
}
}
}
}
else if (aElement->IsXULElement(nsGkAtoms::treecell)) {
if (aAttribute == nsGkAtoms::properties ||
aAttribute == nsGkAtoms::mode ||
aAttribute == nsGkAtoms::src ||
aAttribute == nsGkAtoms::value ||
aAttribute == nsGkAtoms::label) {
nsIContent* parent = aElement->GetParent();
if (parent) {
nsCOMPtr<nsIContent> grandParent = parent->GetParent();
if (grandParent && grandParent->IsXULElement()) {
int32_t index = FindContent(grandParent);
if (index >= 0 && mBoxObject) {
// XXX Should we make an effort to invalidate only cell ?
mBoxObject->InvalidateRow(index);
}
}
}
}
}
}
void
nsTreeContentView::ContentInserted(nsIDocument *aDocument,
nsIContent* aContainer,
nsIContent* aChild)
{
NS_ASSERTION(aChild, "null ptr");
// Make sure this notification concerns us.
// First check the tag to see if it's one that we care about.
// Don't allow non-XUL nodes.
if (!aChild->IsXULElement() || !aContainer->IsXULElement())
return;
if (!aChild->IsAnyOfXULElements(nsGkAtoms::treeitem,
nsGkAtoms::treeseparator,
nsGkAtoms::treechildren,
nsGkAtoms::treerow,
nsGkAtoms::treecell)) {
return;
}
// If we have a legal tag, go up to the tree/select and make sure
// that it's ours.
for (nsIContent* element = aContainer; element != mBody; element = element->GetParent()) {
if (!element)
return; // this is not for us
if (element->IsXULElement(nsGkAtoms::tree))
return; // this is not for us
}
// Lots of codepaths under here that do all sorts of stuff, so be safe.
nsCOMPtr<nsIMutationObserver> kungFuDeathGrip(this);
if (aChild->IsXULElement(nsGkAtoms::treechildren)) {
int32_t index = FindContent(aContainer);
if (index >= 0) {
Row* row = mRows[index].get();
row->SetEmpty(false);
if (mBoxObject)
mBoxObject->InvalidateRow(index);
if (row->IsContainer() && row->IsOpen()) {
int32_t count = EnsureSubtree(index);
if (mBoxObject)
mBoxObject->RowCountChanged(index + 1, count);
}
}
}
else if (aChild->IsAnyOfXULElements(nsGkAtoms::treeitem,
nsGkAtoms::treeseparator)) {
InsertRowFor(aContainer, aChild);
}
else if (aChild->IsXULElement(nsGkAtoms::treerow)) {
int32_t index = FindContent(aContainer);
if (index >= 0 && mBoxObject)
mBoxObject->InvalidateRow(index);
}
else if (aChild->IsXULElement(nsGkAtoms::treecell)) {
nsCOMPtr<nsIContent> parent = aContainer->GetParent();
if (parent) {
int32_t index = FindContent(parent);
if (index >= 0 && mBoxObject)
mBoxObject->InvalidateRow(index);
}
}
}