[gthumb] update the file list after deleting files

[Paolo Bacchilega <paobac src gnome org>]

commit 1d249d619e55224ba7befa8e0a74fff4ba5b9979
Author: Paolo Bacchilega <paobac src gnome org>
Date:   Sun Sep 11 11:41:15 2016 +0200

    update the file list after deleting files

 gthumb/gth-file-source-vfs.c |   59 ++++++++++++++++++++++++++++++++---------
 1 files changed, 46 insertions(+), 13 deletions(-)
---
diff --git a/gthumb/gth-file-source-vfs.c b/gthumb/gth-file-source-vfs.c
index 3dc05ce..eb189fe 100644
--- a/gthumb/gth-file-source-vfs.c
+++ b/gthumb/gth-file-source-vfs.c
@@ -653,15 +653,53 @@ gth_file_source_vfs_monitor_directory (GthFileSource *file_source,
 /* -- gth_file_source_vfs_remove -- */
 
 
+typedef struct {
+       GtkWindow *window;
+       GList     *files;
+} DeleteData;
+
+
+static void
+delete_data_free (DeleteData *ddata)
+{
+       _g_object_list_unref (ddata->files);
+       g_free (ddata);
+}
+
+
+static void
+delete_task_completed_cb (GthTask  *task,
+                         GError   *error,
+                         gpointer  user_data)
+{
+       DeleteData *ddata = user_data;
+
+       if (error == NULL)
+               gth_monitor_files_deleted (gth_main_get_default_monitor (), ddata->files);
+       else if (! g_error_matches (error, G_IO_ERROR,  G_IO_ERROR_CANCELLED))
+               _gtk_error_dialog_from_gerror_show (ddata->window, _("Could not delete the files"), error);
+
+       delete_data_free (ddata);
+       g_object_unref (task);
+}
+
+
 static void
 delete_file_permanently (GtkWindow *window,
                         GList     *file_list /* GthFileData list */)
 {
-       GList   *files;
-       GthTask *task;
+       DeleteData *ddata;
+       GthTask    *task;
+
+       ddata = g_new0 (DeleteData, 1);
+       ddata->window = window;
+       ddata->files = gth_file_data_list_to_file_list (file_list);
+       task = gth_delete_task_new (ddata->files);
+       g_signal_connect (task,
+                         "completed",
+                         G_CALLBACK (delete_task_completed_cb),
+                         ddata);
 
-       files = gth_file_data_list_to_file_list (file_list);
-       task = gth_delete_task_new (files);
        if (GTH_IS_BROWSER (window)) {
                gth_browser_exec_task (GTH_BROWSER (window), task, GTH_TASK_FLAGS_DEFAULT);
        }
@@ -672,9 +710,6 @@ delete_file_permanently (GtkWindow *window,
                gth_progress_dialog_destroy_with_tasks (GTH_PROGRESS_DIALOG (dialog), TRUE);
                gth_progress_dialog_add_task (GTH_PROGRESS_DIALOG (dialog), task, GTH_TASK_FLAGS_DEFAULT);
        }
-
-       g_object_unref (task);
-       _g_object_list_unref (files);
 }
 
 
@@ -717,12 +752,8 @@ trash_failed_delete_permanently_response_cb (GtkDialog *dialog,
 {
        TrashData *tdata = user_data;
 
-       if (response_id == GTK_RESPONSE_YES) {
-               GthTask *task = gth_delete_task_new (tdata->files);
-               gth_browser_exec_task (GTH_BROWSER (tdata->window), task, GTH_TASK_FLAGS_DEFAULT);
-
-               g_object_unref (task);
-       }
+       if (response_id == GTK_RESPONSE_YES)
+               delete_file_permanently (tdata->window, tdata->files);
 
        gtk_widget_destroy (GTK_WIDGET (dialog));
        trash_data_free (tdata);
@@ -761,6 +792,8 @@ trash_task_completed_cb (GthTask  *task,
                _gtk_error_dialog_from_gerror_show (tdata->window, _("Could not move the files to the 
Trash"), error);
                trash_data_free (tdata);
        }
+
+       g_object_unref (task);
 }