[PATCH] Try to open parent folder when viewed folder is deleted

[Christian Neumair <chris gnome-de org>]

The attached patch ensures that we try to display an existing parent
folder when the viewed file is deleted [1] in Navigation mode.
It also removes two obsolete undefined functions.

I must admit that sync I/O might not be the best idea, maybe we should
make the affected window desensitive and install an async callback for
the file info.

[1] http://bugzilla.gnome.org/show_bug.cgi?id=336724
-- 
Christian Neumair <chris gnome-de org>

Index: libnautilus-private/nautilus-file-utilities.c
===================================================================
RCS file: /cvs/gnome/nautilus/libnautilus-private/nautilus-file-utilities.c,v
retrieving revision 1.131
diff -u -p -r1.131 nautilus-file-utilities.c
--- libnautilus-private/nautilus-file-utilities.c	24 May 2006 19:18:36 -0000	1.131
+++ libnautilus-private/nautilus-file-utilities.c	1 Jul 2006 15:44:25 -0000
@@ -513,6 +513,30 @@ nautilus_unique_temporary_file_name (voi
 	return file_name;
 }
 
+char *
+nautilus_find_existing_uri_in_hierarchy (const char *uri)
+{
+	GnomeVFSURI *vfs_uri, *parent_vfs_uri;
+	char *ret = NULL;
+
+	g_assert (uri != NULL);
+
+	vfs_uri = gnome_vfs_uri_new (uri);
+
+	while (vfs_uri != NULL) {
+		if (gnome_vfs_uri_exists (vfs_uri)) {
+			ret = gnome_vfs_uri_to_string (vfs_uri, GNOME_VFS_URI_HIDE_NONE);
+			break;
+		}
+
+		parent_vfs_uri = gnome_vfs_uri_get_parent (vfs_uri);
+		gnome_vfs_uri_unref (vfs_uri);
+		vfs_uri = parent_vfs_uri;
+	}
+
+	return ret;
+}
+
 const char *
 nautilus_get_vfs_method_display_name (char *method)
 {
Index: libnautilus-private/nautilus-file-utilities.h
===================================================================
RCS file: /cvs/gnome/nautilus/libnautilus-private/nautilus-file-utilities.h,v
retrieving revision 1.60
diff -u -p -r1.60 nautilus-file-utilities.h
--- libnautilus-private/nautilus-file-utilities.h	24 May 2006 19:18:36 -0000	1.60
+++ libnautilus-private/nautilus-file-utilities.h	1 Jul 2006 15:44:26 -0000
@@ -82,8 +82,8 @@ char *   nautilus_ensure_unique_file_nam
 						      const char *base_name,
 			                              const char *extension);
 char *   nautilus_unique_temporary_file_name         (void);
-char *   nautilus_find_file_in_gnome_path            (char       *file);
-GList *  nautilus_find_all_files_in_gnome_path       (char       *file);
+
+char *   nautilus_find_existing_uri_in_hierarchy     (const char *uri);
 
 const char *nautilus_get_vfs_method_display_name (char *method);
 char *      nautilus_get_uri_shortname_for_display (GnomeVFSURI *uri);
Index: src/nautilus-pathbar.c
===================================================================
RCS file: /cvs/gnome/nautilus/src/nautilus-pathbar.c,v
retrieving revision 1.5
diff -u -p -r1.5 nautilus-pathbar.c
--- src/nautilus-pathbar.c	18 Mar 2006 07:13:50 -0000	1.5
+++ src/nautilus-pathbar.c	1 Jul 2006 15:45:13 -0000
@@ -969,7 +969,7 @@ nautilus_path_bar_check_icon_theme (Naut
 }
 
 /* Public functions and their helpers */
-static void
+void
 nautilus_path_bar_clear_buttons (NautilusPathBar *path_bar)
 {
         while (path_bar->button_list != NULL) {
Index: src/nautilus-pathbar.h
===================================================================
RCS file: /cvs/gnome/nautilus/src/nautilus-pathbar.h,v
retrieving revision 1.1
diff -u -p -r1.1 nautilus-pathbar.h
--- src/nautilus-pathbar.h	8 Jul 2005 11:25:51 -0000	1.1
+++ src/nautilus-pathbar.h	1 Jul 2006 15:45:13 -0000
@@ -73,6 +73,7 @@ struct _NautilusPathBarClass
 GType    nautilus_path_bar_get_type (void) G_GNUC_CONST;
 
 gboolean nautilus_path_bar_set_path    (NautilusPathBar *path_bar, const char *file_path);
+void     nautilus_path_bar_clear_buttons (NautilusPathBar *path_bar);
 
 void     nautilus_path_bar_up              (NautilusPathBar *path_bar);
 void     nautilus_path_bar_down            (NautilusPathBar *path_bar);
Index: src/nautilus-window-manage-views.c
===================================================================
RCS file: /cvs/gnome/nautilus/src/nautilus-window-manage-views.c,v
retrieving revision 1.367
diff -u -p -r1.367 nautilus-window-manage-views.c
--- src/nautilus-window-manage-views.c	21 Jun 2006 16:26:20 -0000	1.367
+++ src/nautilus-window-manage-views.c	1 Jul 2006 15:45:17 -0000
@@ -330,12 +330,30 @@ viewed_file_changed_callback (NautilusFi
                          * all other nautilus_window_close callers?
                          */
                         end_location_change (window);
-                        
-                        /* FIXME bugzilla.gnome.org 45038: Is closing
-                         * the window really the right thing to do for
-                         * all cases?
-                         */
-                        nautilus_window_close (window);
+
+			if (NAUTILUS_IS_NAVIGATION_WINDOW (window)) {
+				/* auto-show existing parent URI. */
+				char *uri, *go_to_uri;
+				NautilusFile *parent_file;
+
+				parent_file = nautilus_file_get_parent (file);
+				uri = nautilus_file_get_uri (parent_file);
+
+				go_to_uri = nautilus_find_existing_uri_in_hierarchy (uri);
+				if (go_to_uri != NULL) {
+					/* the path bar URI will be set to go_to_uri immediately
+					 * in begin_location_change, but we don't want the
+					 * inexistant children to show up anymore */
+					nautilus_path_bar_clear_buttons (NAUTILUS_PATH_BAR (NAUTILUS_NAVIGATION_WINDOW (window)->path_bar));
+					nautilus_window_go_to (NAUTILUS_WINDOW (window), go_to_uri);
+					g_free (go_to_uri);
+				}
+
+				g_free (uri);
+				nautilus_file_unref (parent_file);
+			} else {
+				nautilus_window_close (window);
+			}
                 }
 	} else {
                 new_location = nautilus_file_get_uri (file);