[gnome-commander] fileroller plugin: new function for retrieving GFile attribute as string

[Uwe Scholz <uwescholz src gnome org>]

commit b3c106167aa69ba914be0a8d1654aeea8e4c0084
Author: Uwe Scholz <u scholz83 gmx de>
Date:   Fri Jan 1 21:51:51 2021 +0100

    fileroller plugin: new function for retrieving GFile attribute as string

 plugins/fileroller/file-roller-plugin.cc | 35 +++++++++++++++++++++++++++++++-
 1 file changed, 34 insertions(+), 1 deletion(-)
---
diff --git a/plugins/fileroller/file-roller-plugin.cc b/plugins/fileroller/file-roller-plugin.cc
index 0029d64a..83aaf452 100644
--- a/plugins/fileroller/file-roller-plugin.cc
+++ b/plugins/fileroller/file-roller-plugin.cc
@@ -182,6 +182,7 @@ struct _FileRollerPluginPrivate
 
 static GnomeCmdPluginClass *parent_class = NULL;
 
+gchar *GetGfileAttributeString(GFile *gFile, const char *attribute);
 
 static void on_extract_cwd (GtkMenuItem *item, GFile *gFile)
 {
@@ -507,7 +508,10 @@ static GList *create_popup_menu_items (GnomeCmdPlugin *plugin, GnomeCmdState *st
                 items = g_list_append (items, item);
                 g_free (text);
 
-                if (!gnome_vfs_uri_equal (state->active_dir_uri, state->inactive_dir_uri))
+                auto activeDirId = GetGfileAttributeString(state->activeDirGfile, G_FILE_ATTRIBUTE_ID_FILE);
+                auto inactiveDirId = GetGfileAttributeString(state->inactiveDirGfile, 
G_FILE_ATTRIBUTE_ID_FILE);
+
+                if (activeDirId && inactiveDirId && g_str_equal(activeDirId, inactiveDirId))
                 {
                     gchar *path = gnome_vfs_unescape_string (gnome_vfs_uri_get_path 
(state->inactive_dir_uri), NULL);
 
@@ -519,6 +523,9 @@ static GList *create_popup_menu_items (GnomeCmdPlugin *plugin, GnomeCmdState *st
                     g_free (path);
                 }
 
+                g_free(activeDirId);
+                g_free(inactiveDirId);
+
                 break;
             }
 
@@ -728,6 +735,32 @@ static void init (FileRollerPlugin *plugin)
     }
 }
 
+/**
+ * Gets a string attribute of a GFile instance and returns the newlo allocated string.
+ * The return value has to be g_free'd.
+ */
+gchar *GetGfileAttributeString(GFile *gFile, const char *attribute)
+{
+    GError *error;
+    error = nullptr;
+    auto gcmdFileInfo = g_file_query_info(gFile,
+                                   attribute,
+                                   G_FILE_QUERY_INFO_NOFOLLOW_SYMLINKS,
+                                   nullptr,
+                                   &error);
+    if (gcmdFileInfo && error)
+    {
+        g_message ("retrieving file info failed: %s", error->message);
+        g_error_free (error);
+        return nullptr;
+    }
+
+    auto gFileAttributeString = g_strdup(g_file_info_get_attribute_string (gcmdFileInfo, attribute));
+    g_object_unref(gcmdFileInfo);
+
+    return gFileAttributeString;
+}
+
 
 /***********************************
  * Public functions