file-undo-operations: replace GSimpleAsyncResult API with GTask

In Nautilus, undo operations are performed as asynchronous tasks, using the
GSimpleAsyncRequest API. Because this API is now deprecated, replace it with the
GTask API.

https://bugzilla.gnome.org/show_bug.cgi?id=763445

1 files changed, 39 insertions, 52 deletions

diff --git a/libnautilus-private/nautilus-file-undo-operations.c b/libnautilus-private/nautilus-file-undo-operations.c
index 47b9698d4..316aef09c 100644
--- a/libnautilus-private/nautilus-file-undo-operations.c
+++ b/libnautilus-private/nautilus-file-undo-operations.c
@@ -55,7 +55,7 @@ struct _NautilusFileUndoInfoDetails {
 	NautilusFileUndoOp op_type;
 	guint count;		/* Number of items */
 
-	GSimpleAsyncResult *apply_async_result;
+        GTask *apply_async_task;
 
 	gchar *undo_label;
 	gchar *redo_label;
@@ -69,7 +69,7 @@ nautilus_file_undo_info_init (NautilusFileUndoInfo *self)
 {
 	self->priv = G_TYPE_INSTANCE_GET_PRIVATE (self, NAUTILUS_TYPE_FILE_UNDO_INFO,
 						  NautilusFileUndoInfoDetails);
-	self->priv->apply_async_result = NULL;
+        self->priv->apply_async_task = NULL;
 }
 
 static void
@@ -157,7 +157,7 @@ nautilus_file_undo_info_finalize (GObject *obj)
 {
 	NautilusFileUndoInfo *self = NAUTILUS_FILE_UNDO_INFO (obj);
 
-	g_clear_object (&self->priv->apply_async_result);
+        g_clear_object (&self->priv->apply_async_task);
 
 	G_OBJECT_CLASS (nautilus_file_undo_info_parent_class)->finalize (obj);
 }
@@ -213,12 +213,12 @@ nautilus_file_undo_info_apply_async (NautilusFileUndoInfo *self,
 				     GAsyncReadyCallback callback,
 				     gpointer user_data)
 {
-	g_assert (self->priv->apply_async_result == NULL);
+        g_assert (self->priv->apply_async_task == NULL);
 
-	self->priv->apply_async_result = 
-		g_simple_async_result_new (G_OBJECT (self),
-					   callback, user_data,
-					   nautilus_file_undo_info_apply_async);
+        self->priv->apply_async_task = g_task_new (G_OBJECT (self),
+                                                   NULL,
+                                                   callback,
+                                                   user_data);
 
 	if (undo) {
 		NAUTILUS_FILE_UNDO_INFO_CLASS (G_OBJECT_GET_CLASS (self))->undo_func (self, parent_window);
@@ -240,20 +240,23 @@ file_undo_info_op_res_free (gpointer data)
 
 gboolean
 nautilus_file_undo_info_apply_finish (NautilusFileUndoInfo *self,
-				      GAsyncResult *res,
-				      gboolean *user_cancel,
-				      GError **error)
+                                      GAsyncResult *res,
+                                      gboolean *user_cancel,
+                                      GError **error)
 {
-	FileUndoInfoOpRes *op_res;
+        FileUndoInfoOpRes *op_res;
+        gboolean success = FALSE;
 
-	if (g_simple_async_result_propagate_error (G_SIMPLE_ASYNC_RESULT (res), error)) {
-		return FALSE;
-	}
+        op_res = g_task_propagate_pointer (G_TASK (res), error);
+
+        if (op_res != NULL) {
+                *user_cancel = op_res->user_cancel;
+                success = op_res->success;
 
-	op_res = g_simple_async_result_get_op_res_gpointer (G_SIMPLE_ASYNC_RESULT (res));
-	*user_cancel = op_res->user_cancel;
+                file_undo_info_op_res_free (op_res);
+        }
 
-	return op_res->success;
+        return success;
 }
 
 void
@@ -278,12 +281,10 @@ file_undo_info_complete_apply (NautilusFileUndoInfo *self,
 	op_res->user_cancel = user_cancel;
 	op_res->success = success;
 
+        g_task_return_pointer (self->priv->apply_async_task, op_res,
+                               file_undo_info_op_res_free);
 
-	g_simple_async_result_set_op_res_gpointer (self->priv->apply_async_result, op_res,
-						   file_undo_info_op_res_free);
-	g_simple_async_result_complete_in_idle (self->priv->apply_async_result);
-
-	g_clear_object (&self->priv->apply_async_result);
+        g_clear_object (&self->priv->apply_async_task);
 }
 
 static void
@@ -1079,26 +1080,13 @@ trash_redo_func (NautilusFileUndoInfo *info,
 	}
 }
 
-static GHashTable *
-trash_retrieve_files_to_restore_finish (NautilusFileUndoInfoTrash *self,
-					GAsyncResult *res,
-					GError **error)
-{
-	GHashTable *retval = g_simple_async_result_get_op_res_gpointer (G_SIMPLE_ASYNC_RESULT (res));
-
-	if (retval == NULL) {
-		g_simple_async_result_propagate_error (G_SIMPLE_ASYNC_RESULT (res), error);
-	}
-
-	return retval;
-}
-
 static void
-trash_retrieve_files_to_restore_thread (GSimpleAsyncResult *res,
-					GObject *object,
-					GCancellable *cancellable)
+trash_retrieve_files_to_restore_thread (GTask *task,
+                                        gpointer source_object,
+                                        gpointer task_data,
+                                        GCancellable *cancellable)
 {
-	NautilusFileUndoInfoTrash *self = NAUTILUS_FILE_UNDO_INFO_TRASH (object);
+        NautilusFileUndoInfoTrash *self = NAUTILUS_FILE_UNDO_INFO_TRASH (source_object);
 	GFileEnumerator *enumerator;
 	GHashTable *to_restore;
 	GFile *trash;
@@ -1158,26 +1146,25 @@ trash_retrieve_files_to_restore_thread (GSimpleAsyncResult *res,
 	g_object_unref (trash);
 
 	if (error != NULL) {
-		g_simple_async_result_take_error (res, error);
+                g_task_return_error (task, error);
 		g_hash_table_destroy (to_restore);
 	} else {
-		g_simple_async_result_set_op_res_gpointer (res, to_restore, NULL);
+                g_task_return_pointer (task, to_restore, NULL);
 	}
 }
 
 static void
 trash_retrieve_files_to_restore_async (NautilusFileUndoInfoTrash *self,
-				 GAsyncReadyCallback callback,
-				 gpointer user_data)
+                                       GAsyncReadyCallback callback,
+                                       gpointer user_data)
 {
-	GSimpleAsyncResult *async_op;
+        GTask *task;
+
+        task = g_task_new (G_OBJECT (self), NULL, callback, user_data);
 
-	async_op = g_simple_async_result_new (G_OBJECT (self), callback, user_data,
-					      trash_retrieve_files_to_restore_async);
-	g_simple_async_result_run_in_thread (async_op, trash_retrieve_files_to_restore_thread,
-					     G_PRIORITY_DEFAULT, NULL);
+        g_task_run_in_thread (task, trash_retrieve_files_to_restore_thread);
 
-	g_object_unref (async_op);
+        g_object_unref (task);
 }
 
 static void
@@ -1189,7 +1176,7 @@ trash_retrieve_files_ready (GObject *source,
 	GHashTable *files_to_restore;
 	GError *error = NULL;
 
-	files_to_restore = trash_retrieve_files_to_restore_finish (self, res, &error);
+        files_to_restore = g_task_propagate_pointer (G_TASK (res), &error);
 
 	if (error == NULL && g_hash_table_size (files_to_restore) > 0) {
 		GList *gfiles_in_trash, *l;