already_AddRefed<nsISupports>
BoxObject::GetPropertyAsSupports(const nsAString& propertyName)
{
nsCOMPtr<nsISupports> ret;
GetPropertyAsSupports(PromiseFlatString(propertyName).get(), getter_AddRefs(ret));
return ret.forget();
}
void
BoxObject::GetProperty(const nsAString& propertyName, nsString& aRetVal, ErrorResult& aRv)
{
nsCOMPtr<nsISupports> data(GetPropertyAsSupports(propertyName));
if (!data) {
return;
}
nsCOMPtr<nsISupportsString> supportsStr(do_QueryInterface(data));
if (!supportsStr) {
aRv.Throw(NS_ERROR_FAILURE);
return;
}
supportsStr->GetData(aRetVal);
}
NS_IMETHODIMP
nsBoxObject::GetProperty(const PRUnichar* aPropertyName, PRUnichar** aResult)
{
nsCOMPtr<nsISupports> data;
nsresult rv = GetPropertyAsSupports(aPropertyName,getter_AddRefs(data));
NS_ENSURE_SUCCESS(rv, rv);
if (!data) {
*aResult = nsnull;
return NS_OK;
}
nsCOMPtr<nsISupportsString> supportsStr = do_QueryInterface(data);
if (!supportsStr)
return NS_ERROR_FAILURE;
return supportsStr->ToString(aResult);
}
NS_IMETHODIMP
nsTreeBoxObject::SetDocument(nsIDocument* aDocument)
{
// this should only be called with a null document, which indicates
// that we're being torn down.
NS_ASSERTION(aDocument == nsnull, "SetDocument called with non-null document");
// Drop the view's ref to us.
nsCOMPtr<nsISupports> suppView;
GetPropertyAsSupports(NS_LITERAL_STRING("view").get(), getter_AddRefs(suppView));
nsCOMPtr<nsITreeView> treeView(do_QueryInterface(suppView));
if (treeView) {
nsCOMPtr<nsITreeSelection> sel;
treeView->GetSelection(getter_AddRefs(sel));
if (sel)
sel->SetTree(nsnull);
treeView->SetTree(nsnull); // Break the circular ref between the view and us.
}
return nsBoxObject::SetDocument(aDocument);
}
