[sysprof] display: provide recording time for display titles

[Christian Hergert <chergert src gnome org>]

commit 94b0ecb758712c782a9e2c532bc7a395fba15ac2
Author: Christian Hergert <chergert redhat com>
Date:   Thu Jan 23 12:46:44 2020 -0800

    display: provide recording time for display titles

 src/libsysprof-ui/sysprof-display.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)
---
diff --git a/src/libsysprof-ui/sysprof-display.c b/src/libsysprof-ui/sysprof-display.c
index 0fe44af..e7ea00f 100644
--- a/src/libsysprof-ui/sysprof-display.c
+++ b/src/libsysprof-ui/sysprof-display.c
@@ -237,10 +237,24 @@ sysprof_display_dup_title (SysprofDisplay *self)
 
   if (priv->reader != NULL)
     {
+      g_autoptr(GDateTime) dt = NULL;
       const gchar *filename;
+      const gchar *capture_time;
 
       if ((filename = sysprof_capture_reader_get_filename (priv->reader)))
         return g_path_get_basename (filename);
+
+      /* This recording is not yet on disk, but the time it was recorded
+       * is much more useful than "New Recording".
+       */
+      capture_time = sysprof_capture_reader_get_time (priv->reader);
+
+      if ((dt = g_date_time_new_from_iso8601 (capture_time, NULL)))
+        {
+          g_autofree gchar *formatted = g_date_time_format (dt, "%X");
+          /* translators: %s is replaced with locale specific time of recording */
+          return g_strdup_printf (_("Recording at %s"), formatted);
+        }
     }
 
   return g_strdup (_("New Recording"));