2001-02-21  John Harper  <jsh@eazel.com>

	reviewed by: Darin Adler <darin@eazel.com>

	Fixed bug 6828 (Moving directories in tree view makes contents
	become top-level nodes):

	* components/tree/nautilus-tree-node.h,
	components/tree/nautilus-tree-node.c,
	components/tree/nautilus-tree-node-private.h

	(nautilus_tree_node_update_uri): new private function, updates
	the node's cached URI from its NautilusFile and updates the new
	is_toplevel flag

	(nautilus_tree_node_is_toplevel): new function, returns true if
	the node shouldn't have a parent node

	* components/tree/nautilus-tree-model.c: track nodes that have
	no parent but aren't top-level nodes. If suitable parents later
	appear the unparented nodes will be connected to them

	* components/tree/nautilus-tree-view.c,
	components/tree/nautilus-tree-view-private.h: do similar
	tracking of unparented nodes (but from the point of view of the
	view, not the model)

	[ Having both modules duplicate this similar functionality
	isn't ideal, but I don't see how to unify it ]


	Fixed bug 6820 (directory sort order is different in tree
	view):

	* components/tree/nautilus-tree-view.c (ctree_compare_rows):
	new function, set as the comparison function for tree views.
	It calls nautilus_file_compare_for_sort () on the files
	associated with the tree rows (with hardcoded type
	NAUTILUS_FILE_SORT_BY_NAME for now)

	* libnautilus-extensions/nautilus-ctree.c
	(nautilus_ctree_insert_node): for sorted insertions, link the
	inserted node into the tree before finding the correct place,
	then move it afterwards. This ensures that the comparison
	function is able to find the node pointers from the row
	pointers that it's given