[nautilus/wip/antoniof/search-list-redesign: 1/3] file: Add trailing slash to parent path

[António Fernandes <antoniof src gnome org>]

commit 38d3d014f953e8fd27f66704c67f8db7f7022fa1
Author: António Fernandes <antoniof gnome org>
Date:   Wed Aug 3 10:00:46 2022 +0100

    file: Add trailing slash to parent path
    
    This makes it easier to tell it is a folder path.
    
    In a special case, for recursive search, where we omit the common
    prefix, this is especially important because direct subfolders would
    be a single basename without any slash.

 src/nautilus-file.c      | 18 ++++++++++++++----
 src/nautilus-name-cell.c | 17 ++++++++++++++---
 2 files changed, 28 insertions(+), 7 deletions(-)
---
diff --git a/src/nautilus-file.c b/src/nautilus-file.c
index e03d78f90..7be6151c6 100644
--- a/src/nautilus-file.c
+++ b/src/nautilus-file.c
@@ -993,13 +993,14 @@ nautilus_file_unref (NautilusFile *file)
  * @file: The file in question.
  *
  * Return value: A string representing the parent's location,
- * formatted for user display (including stripping "file://").
+ * formatted for user display (including stripping "file://"
+ * and adding trailing slash).
  * If the parent is NULL, returns the empty string.
  */
 char *
 nautilus_file_get_parent_uri_for_display (NautilusFile *file)
 {
-    GFile *parent;
+    g_autoptr (GFile) parent = NULL;
     char *result;
 
     g_assert (NAUTILUS_IS_FILE (file));
@@ -1007,8 +1008,17 @@ nautilus_file_get_parent_uri_for_display (NautilusFile *file)
     parent = nautilus_file_get_parent_location (file);
     if (parent)
     {
-        result = g_file_get_parse_name (parent);
-        g_object_unref (parent);
+        g_autofree gchar *parse_name = g_file_get_parse_name (parent);
+
+        /* Ensure a trailing slash to emphasize it is a directory */
+        if (g_str_has_suffix (parse_name, G_DIR_SEPARATOR_S))
+        {
+            result = g_steal_pointer (&parse_name);
+        }
+        else
+        {
+            result = g_strconcat (parse_name, G_DIR_SEPARATOR_S, NULL);
+        }
     }
     else
     {
diff --git a/src/nautilus-name-cell.c b/src/nautilus-name-cell.c
index 1a0720ea6..71c845257 100644
--- a/src/nautilus-name-cell.c
+++ b/src/nautilus-name-cell.c
@@ -36,6 +36,7 @@ get_path_text (NautilusFile *file,
     g_autofree gchar *path = NULL;
     g_autoptr (GFile) dir_location = NULL;
     g_autoptr (GFile) home_location = g_file_new_for_path (g_get_home_dir ());
+    g_autoptr (GFile) root_location = g_file_new_for_path ("/");
     GFile *relative_location_base;
 
     if (path_attribute_q == 0)
@@ -66,15 +67,25 @@ get_path_text (NautilusFile *file,
         relative_location_base = home_location;
     }
 
-    if (g_file_has_prefix (dir_location, relative_location_base))
+    if (relative_location_base != root_location &&
+        g_file_has_prefix (dir_location, relative_location_base))
     {
         g_autofree gchar *relative_path = NULL;
+        g_autofree gchar *display_name = NULL;
 
         relative_path = g_file_get_relative_path (relative_location_base, dir_location);
-        return g_filename_display_name (relative_path);
+        display_name = g_filename_display_name (relative_path);
+
+        /* Ensure a trailing slash to emphasize it is a directory */
+        if (g_str_has_suffix (display_name, G_DIR_SEPARATOR_S))
+        {
+            return g_steal_pointer (&display_name);
+        }
+
+        return g_strconcat (display_name, G_DIR_SEPARATOR_S, NULL);
     }
 
-    return g_file_get_path (dir_location);
+    return g_steal_pointer (&path);
 }
 
 static gchar *