[gvfs] trash: Implement query_info_on_read()

[Ross Lagerwall <rossl src gnome org>]

commit d872d9ca4437c6e24948d8a730dea884c4299783
Author: Ross Lagerwall <rosslagerwall gmail com>
Date:   Tue Dec 17 07:54:22 2013 +0200

    trash: Implement query_info_on_read()
    
    Implement query_info_on_read() by proxying to the underlying stream's
    implementation.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=720806

 daemon/gvfsbackendtrash.c |   29 +++++++++++++++++++++++++++++
 1 files changed, 29 insertions(+), 0 deletions(-)
---
diff --git a/daemon/gvfsbackendtrash.c b/daemon/gvfsbackendtrash.c
index 1f6e624..8cddeae 100644
--- a/daemon/gvfsbackendtrash.c
+++ b/daemon/gvfsbackendtrash.c
@@ -23,6 +23,7 @@
 #include "gvfsjobqueryinfo.h"
 #include "gvfsjobenumerate.h"
 #include "gvfsjobseekread.h"
+#include "gvfsjobqueryinforead.h"
 #include "gvfsjobread.h"
 #include "gvfsdaemonutils.h"
 
@@ -312,6 +313,33 @@ trash_backend_seek_on_read (GVfsBackend       *backend,
   return TRUE;
 }
 
+static void
+trash_backend_query_info_on_read (GVfsBackend           *backend,
+                                  GVfsJobQueryInfoRead  *job,
+                                  GVfsBackendHandle      handle,
+                                  GFileInfo             *info,
+                                  GFileAttributeMatcher *matcher)
+{
+  GError *error = NULL;
+  GFileInfo *real_info;
+
+  real_info = g_file_input_stream_query_info (handle,
+                                              job->attributes,
+                                              G_VFS_JOB (job)->cancellable,
+                                              &error);
+  if (real_info)
+    {
+      g_file_info_copy_into (real_info, info);
+      g_vfs_job_succeeded (G_VFS_JOB (job));
+      g_object_unref (real_info);
+    }
+  else
+    {
+      g_vfs_job_failed_from_error (G_VFS_JOB (job), error);
+      g_error_free (error);
+    }
+}
+
 static gboolean
 trash_backend_close_read (GVfsBackend       *backend,
                           GVfsJobCloseRead  *job,
@@ -871,6 +899,7 @@ g_vfs_backend_trash_class_init (GVfsBackendTrashClass *class)
   backend_class->try_open_for_read = trash_backend_open_for_read;
   backend_class->try_read = trash_backend_read;
   backend_class->try_seek_on_read = trash_backend_seek_on_read;
+  backend_class->query_info_on_read = trash_backend_query_info_on_read;
   backend_class->try_close_read = trash_backend_close_read;
   backend_class->try_query_info = trash_backend_query_info;
   backend_class->try_query_fs_info = trash_backend_query_fs_info;