Don't call button_data_free() explicitly; the button is weak-reffed and

Don't call button_data_free() explicitly; the button is weak-reffed and

2005-01-05  Federico Mena Quintero  <federico@ximian.com>

	* gtk/gtkpathbar.c (_gtk_path_bar_set_path): Don't call
	button_data_free() explicitly; the button is weak-reffed and the
	callback will free the button data.  Fixes #163010.
	(_gtk_path_bar_set_path): Don't ref/sink the button.  And for the
	failure case, call gtk_widget_destroy() on it.

	* gtk/gtkfilechooserdefault.c (check_is_folder): Use
	gtk_file_system_get_folder() again (see the ChangeLog entry from
	2004-08-25).  We can't first get the parent folder and then
	request the info for the path in question, as the parent folder
	may not be readable.  See bug #162617.
	(gtk_file_chooser_default_set_current_folder): Assert that the
	passed-in path is not null.
	(shortcuts_find_current_folder): Likewise.
	(shortcuts_add_current_folder): Likewise.
	(set_list_model): Likewise.
	(gtk_file_chooser_default_map): Only reload the current folder if
	it exists.
	(bookmarks_check_add_sensitivity): Check for the current folder
	being NULL.
	(browse_files_select_first_row): Don't set the cursor if there is
	no model loaded.