// Get the nsITreeBoxObject interface from any levels DOMNode under the <tree>
void nsXULTreeAccessible::GetTreeBoxObject(nsIDOMNode *aDOMNode, nsITreeBoxObject **aBoxObject)
{
nsAutoString name;
nsCOMPtr<nsIDOMNode> parentNode, currentNode;
// Find DOMNode's parents recursively until reach the <tree> tag
currentNode = aDOMNode;
while (currentNode) {
currentNode->GetLocalName(name);
if (name.EqualsLiteral("tree")) {
// We will get the nsITreeBoxObject from the tree node
nsCOMPtr<nsIDOMXULElement> xulElement(do_QueryInterface(currentNode));
if (xulElement) {
nsCOMPtr<nsIBoxObject> box;
xulElement->GetBoxObject(getter_AddRefs(box));
nsCOMPtr<nsITreeBoxObject> treeBox(do_QueryInterface(box));
if (treeBox) {
*aBoxObject = treeBox;
NS_ADDREF(*aBoxObject);
return;
}
}
}
currentNode->GetParentNode(getter_AddRefs(parentNode));
currentNode = parentNode;
}
*aBoxObject = nsnull;
}
already_AddRefed<nsITreeBoxObject>
nsCoreUtils::GetTreeBoxObject(nsIContent *aContent)
{
// Find DOMNode's parents recursively until reach the <tree> tag
nsIContent* currentContent = aContent;
while (currentContent) {
if (currentContent->NodeInfo()->Equals(nsGkAtoms::tree,
kNameSpaceID_XUL)) {
// We will get the nsITreeBoxObject from the tree node
nsCOMPtr<nsIDOMXULElement> xulElement(do_QueryInterface(currentContent));
if (xulElement) {
nsCOMPtr<nsIBoxObject> box;
xulElement->GetBoxObject(getter_AddRefs(box));
nsCOMPtr<nsITreeBoxObject> treeBox(do_QueryInterface(box));
if (treeBox)
return treeBox.forget();
}
}
currentContent = currentContent->GetParent();
}
return nullptr;
}
