2000-11-13  Mathieu Lacage  <mathieu@eazel.com>

	Buddy: pavel.
	Fix bug 2422 and 4382.

	* components/tree/nautilus-tree-view.c:
	(filtering_changed_callback),
	(collapse_time_callback): added. collapses opened folders when
	you leave the tree view.
	(nautilus_tree_view_drag_leave): make it call tree_view_drag_destroy
	(nautilus_tree_view_drag_motion): cleanup, make it call
	tree_view_drag_destroy_real
	(nautilus_tree_view_drag_drop): spaces.
	(nautilus_tree_view_drag_data_received): cleanup: make it call
	tree_view_drag_destroy.
	(nautilus_dump_info): cleanup.
	(expand_time_callback): cleanup.
	(nautilus_tree_view_expand_maybe_later): cleanup
	(nautilus_tree_view_collapse_all): cleanup.
	(nautilus_tree_view_receive_dropped_icons): make it collapse
	correctly.
	(nautilus_tree_view_prelight_stop): new function: clears prelighting.
	(nautilus_tree_view_drag_destroy): new function: destroys when drag finished.
	(nautilus_tree_view_drag_destroy_real): new function: destroys when drag begins.
	* docs/dnd.txt: add some thoughts.
	* libnautilus-extensions/nautilus-drag.c:
	(nautilus_drag_init): init new field.
	* libnautilus-extensions/nautilus-drag.h: add shared field to public structure.