[nautilus/wip/antoniof/gnome-42: 64/72] Revert "files-view: Stop connecting to GtkFileChooser::current-folder-changed"

[António Fernandes <antoniof src gnome org>]

commit b9e939ae383226b05e2acdc2e17faa5ff2f8971e
Author: António Fernandes <antoniof gnome org>
Date:   Fri Feb 11 19:06:12 2022 +0000

    Revert "files-view: Stop connecting to GtkFileChooser::current-folder-changed"
    
    This reverts commit f9197e0ee01c1d4494ddbb90f7e3b717d02930e3.

 src/nautilus-files-view.c | 39 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 39 insertions(+)
---
diff --git a/src/nautilus-files-view.c b/src/nautilus-files-view.c
index 93270c9bf..0e8908e8e 100644
--- a/src/nautilus-files-view.c
+++ b/src/nautilus-files-view.c
@@ -5823,6 +5823,42 @@ copy_data_free (CopyCallbackData *data)
     g_free (data);
 }
 
+static gboolean
+uri_is_parent_of_selection (GList      *selection,
+                            const char *uri)
+{
+    gboolean found;
+    GList *l;
+    GFile *file;
+
+    found = FALSE;
+
+    file = g_file_new_for_uri (uri);
+    for (l = selection; !found && l != NULL; l = l->next)
+    {
+        GFile *parent;
+        parent = nautilus_file_get_parent_location (l->data);
+        found = g_file_equal (file, parent);
+        g_object_unref (parent);
+    }
+    g_object_unref (file);
+    return found;
+}
+
+static void
+on_destination_dialog_folder_changed (GtkFileChooser *chooser,
+                                      gpointer        user_data)
+{
+    CopyCallbackData *copy_data = user_data;
+    char *uri;
+    gboolean found;
+
+    uri = gtk_file_chooser_get_current_folder_uri (chooser);
+    found = uri_is_parent_of_selection (copy_data->selection, uri);
+    gtk_dialog_set_response_sensitive (GTK_DIALOG (chooser), GTK_RESPONSE_OK, !found);
+    g_free (uri);
+}
+
 static void
 on_destination_dialog_response (GtkDialog *dialog,
                                 gint       response_id,
@@ -5916,6 +5952,9 @@ copy_or_move_selection (NautilusFilesView *view,
     }
 
     gtk_file_chooser_set_current_folder_file (GTK_FILE_CHOOSER (dialog), location, NULL);
+    g_signal_connect (dialog, "current-folder-changed",
+                      G_CALLBACK (on_destination_dialog_folder_changed),
+                      copy_data);
     g_signal_connect (dialog, "response",
                       G_CALLBACK (on_destination_dialog_response),
                       copy_data);