[gvfs] daemon: implement show-unmount-progress in GVfsJobUnmount

[Cosimo Cecchi <cosimoc src gnome org>]

commit 39a92eb5ac5741b79832825f8408598aab83c52c
Author: Cosimo Cecchi <cosimoc gnome org>
Date:   Mon Jul 9 21:07:49 2012 -0400

    daemon: implement show-unmount-progress in GVfsJobUnmount
    
    https://bugzilla.gnome.org/show_bug.cgi?id=676111

 daemon/gvfsjobunmount.c |   58 +++++++++++++++++++++++++++++++++++++++++++++++
 daemon/gvfsjobunmount.h |    3 ++
 2 files changed, 61 insertions(+), 0 deletions(-)
---
diff --git a/daemon/gvfsjobunmount.c b/daemon/gvfsjobunmount.c
index 85873f9..f1e794c 100644
--- a/daemon/gvfsjobunmount.c
+++ b/daemon/gvfsjobunmount.c
@@ -125,6 +125,60 @@ g_vfs_job_unmount_new (DBusConnection *connection,
 }
 
 static void
+unmount_progress_clear (GVfsJobUnmount *op_job)
+{
+  gchar *message;
+
+  if (op_job->unmount_progress_id > 0)
+    {
+      g_source_remove (op_job->unmount_progress_id);
+      op_job->unmount_progress_id = 0;
+    }
+
+  if (!op_job->unmount_progress_fired)
+    return;
+
+  g_debug ("gvfsjobunmount progress clear");
+
+  message = g_strdup_printf (_("%s has been unmounted\n"),
+                             g_vfs_backend_get_display_name (op_job->backend));
+  g_mount_source_show_unmount_progress (op_job->mount_source,
+                                        message, 0, 0);
+  g_free (message);
+}
+
+static gboolean
+unmount_progress_timeout (gpointer user_data)
+{
+  GVfsJobUnmount *op_job = user_data;
+  gchar *message;
+
+  op_job->unmount_progress_id = 0;
+  op_job->unmount_progress_fired = TRUE;
+
+  g_debug ("gvfsjobunmount progress timeout reached");
+
+  message = g_strdup_printf (_("Unmounting %s\nPlease wait"),
+                             g_vfs_backend_get_display_name (op_job->backend));
+  /* TODO: report estimated bytes and time left */
+  g_mount_source_show_unmount_progress (op_job->mount_source,
+                                        message, -1, -1);
+  g_free (message);
+
+  return FALSE;
+}
+
+static void
+unmount_progress_start (GVfsJobUnmount *op_job)
+{
+  if (op_job->unmount_progress_id > 0)
+    return;
+
+  g_debug ("gvfsjobunmount progress timeout start");
+  op_job->unmount_progress_id = g_timeout_add (1500, unmount_progress_timeout, op_job);
+}
+
+static void
 run (GVfsJob *job)
 {
   GVfsJobUnmount *op_job = G_VFS_JOB_UNMOUNT (job);
@@ -133,10 +187,14 @@ run (GVfsJob *job)
   if (class->unmount == NULL)
     return;
 
+  unmount_progress_start (op_job);
+
   class->unmount (op_job->backend,
 		  op_job,
                   op_job->flags,
                   op_job->mount_source);
+
+  unmount_progress_clear (op_job);
 }
 
 static gboolean
diff --git a/daemon/gvfsjobunmount.h b/daemon/gvfsjobunmount.h
index ca8a23e..236d471 100644
--- a/daemon/gvfsjobunmount.h
+++ b/daemon/gvfsjobunmount.h
@@ -46,6 +46,9 @@ struct _GVfsJobUnmount
   GVfsBackend *backend;
   GMountUnmountFlags flags;
   GMountSource *mount_source;
+
+  guint unmount_progress_id;
+  gboolean unmount_progress_fired;
 };
 
 struct _GVfsJobUnmountClass