Implement pull support on trash backend.

2008-12-11  Ryan Lortie  <desrt@desrt.ca>

        Implement pull support on trash backend.

        * daemon/trashlib/trashitem.[ch]: add support for restoring items
        * daemon/gvfsbackendtrash.c: implement pull


svn path=/trunk/; revision=2133

1 files changed, 65 insertions, 0 deletions

diff --git a/daemon/gvfsbackendtrash.c b/daemon/gvfsbackendtrash.c
index b4b5916a..be674716 100644
--- a/daemon/gvfsbackendtrash.c
+++ b/daemon/gvfsbackendtrash.c
@@ -367,6 +367,70 @@ trash_backend_delete (GVfsBackend   *vfs_backend,
   return TRUE;
 }
 
+static gboolean
+trash_backend_pull (GVfsBackend           *vfs_backend,
+                    GVfsJobPull           *job,
+                    const gchar           *source,
+                    const gchar           *local_path,
+                    GFileCopyFlags         flags,
+                    gboolean               remove_source,
+                    GFileProgressCallback  progress_callback,
+                    gpointer               progress_callback_data)
+{
+  GVfsBackendTrash *backend = G_VFS_BACKEND_TRASH (vfs_backend);
+  GError *error = NULL;
+
+  if (source[1] == '\0')
+    g_set_error (&error, G_IO_ERROR, G_IO_ERROR_NOT_SUPPORTED,
+                 _("Can't pull trash"));
+  else
+    {
+      gboolean is_toplevel;
+      TrashItem *item;
+      GFile *real;
+
+      real = trash_backend_get_file (backend, source, &item,
+                                     &is_toplevel, &error);
+
+      if (real)
+        {
+          if (remove_source && !is_toplevel)
+            g_set_error (&error, G_IO_ERROR, G_IO_ERROR_PERMISSION_DENIED,
+                         _("Items in the trash may not be modified"));
+
+          else
+            {
+              GFile *destination;
+              gboolean it_worked;
+
+              destination = g_file_new_for_path (local_path);
+
+              if (remove_source)
+                it_worked = trash_item_restore (item, destination, &error);
+              else
+                it_worked = g_file_copy (real, destination, flags,
+                                         NULL, NULL, NULL, &error);
+
+              g_object_unref (destination);
+
+              if (it_worked)
+                {
+                  g_vfs_job_succeeded (G_VFS_JOB (job));
+
+                  return TRUE;
+                }
+            }
+
+          trash_item_unref (item);
+        }
+ 
+    }
+
+  g_vfs_job_failed_from_error (G_VFS_JOB (job), error);
+  
+  return TRUE;
+}
+
 static void
 trash_backend_add_info (TrashItem *item,
                         GFileInfo *info,
@@ -717,6 +781,7 @@ g_vfs_backend_trash_class_init (GVfsBackendTrashClass *class)
   backend_class->try_query_fs_info = trash_backend_query_fs_info;
   backend_class->try_enumerate = trash_backend_enumerate;
   backend_class->try_delete = trash_backend_delete;
+  backend_class->try_pull = trash_backend_pull;
   backend_class->try_create_dir_monitor = trash_backend_create_dir_monitor;
   backend_class->try_create_file_monitor = trash_backend_create_file_monitor;
 }