def layerTreeInsertionPoint(tree_view: QgsLayerTreeView) -> tuple:
"""
Direct copy of the code QgisApp::layerTreeInsertionPoint for QGIS < 3.10
"""
insert_group = tree_view.layerTreeModel().rootGroup()
current = tree_view.currentIndex()
index = 0
if current.isValid():
index = current.row()
current_node = tree_view.currentNode()
if current_node:
# if the insertion point is actually a group, insert new layers into the group
if QgsLayerTree.isGroup(current_node):
# if the group is embedded go to the first non-embedded group, at worst the top level item
insert_group = firstGroupWithoutCustomProperty(
current_node, "embedded")
return InsertionPoint(insert_group, 0)
# otherwise just set the insertion point in front of the current node
parent_node = current_node.parent()
if QgsLayerTree.isGroup(parent_node):
# if the group is embedded go to the first non-embedded group, at worst the top level item
insert_group = firstGroupWithoutCustomProperty(
parent_node, "embedded")
if parent_node != insert_group:
index = 0
return InsertionPoint(insert_group, index)
