2000-11-15  Rebecca Schulman  <rebecka@eazel.com>
	This change is the first part of the fix for bug 3920.
	The fix will allow nautilus to tell a user that the
	search they have requested is newer than their index.
	This involved communicating errors that occurred while
	opening and reading the directory outside of the
	directory model to a view, which can react in a useful
	way.

	Reviewed by: John Sullivan <sullivan@eazel.com>

	* libnautilus-extensions/nautilus-directory-async.c:
	(directory_load_done):
	If the directory load did not complete successfully,
	emit an error signal

	* libnautilus-extensions/nautilus-directory-private.h:
	* libnautilus-extensions/nautilus-directory.h:
	* libnautilus-extensions/nautilus-directory.c:
	(nautilus_directory_initialize_class),
	(nautilus_directory_emit_load_error):
	Add the load error signal, and a cover function to
	emit the signal

	* src/file-manager/fm-directory-view.h:
	* src/file-manager/fm-directory-view.c:
	(fm_directory_view_initialize_class), (load_error_callback),
	(finish_loading_uri), (disconnect_model_handlers):
	Also add a load_error signal to the fm directory view class,
	so that subclasses can get information about errors particular
	to a type of directory, (in this case the search list view)
	and react correctly.

	* src/file-manager/fm-search-list-view.c: (load_error_callback),
	(fm_search_list_view_initialize):
	Handle the load error SERVICE_OBSOLETE, by displaying a dialog
	that tells the user that their index is too old for their
	search to work correctly, and gives them an option to reindex

	* src/file-manager/nautilus-indexing-info.c:
	(nautilus_indexing_info_request_reindex):
	* src/file-manager/nautilus-indexing-info.h:
	Add a cover function to medusa's request reindex function
	that the search list view calls.