[meld: 44/63] filediff: Use new message action helper for file change notification

[Kai Willadsen <kaiw src gnome org>]

commit d8cf66382e609c912a762dd87a2d686bf5c6951a
Author: Kai Willadsen <kai willadsen gmail com>
Date:   Mon Sep 28 07:30:44 2015 +1000

    filediff: Use new message action helper for file change notification

 meld/filediff.py |   15 +++------------
 1 files changed, 3 insertions(+), 12 deletions(-)
---
diff --git a/meld/filediff.py b/meld/filediff.py
index 658e9b2..2ea04cc 100644
--- a/meld/filediff.py
+++ b/meld/filediff.py
@@ -1170,18 +1170,9 @@ class FileDiff(melddoc.MeldDoc, gnomeglade.Component):
         display_name = gfile.get_parse_name().decode('utf-8')
         primary = _("File %s has changed on disk") % display_name
         secondary = _("Do you want to reload the file?")
-        msgarea = self.msgarea_mgr[pane].new_from_text_and_icon(
-                        Gtk.STOCK_DIALOG_WARNING, primary, secondary)
-        msgarea.add_button(_("_Reload"), Gtk.ResponseType.ACCEPT)
-        msgarea.add_button(_("Hi_de"), Gtk.ResponseType.CLOSE)
-
-        def on_file_changed_response(msgarea, response_id, *args):
-            self.msgarea_mgr[pane].clear()
-            if response_id == Gtk.ResponseType.ACCEPT:
-                self.on_revert_activate()
-
-        msgarea.connect("response", on_file_changed_response)
-        msgarea.show_all()
+        self.msgarea_mgr[pane].add_action_msg(
+            Gtk.STOCK_DIALOG_WARNING, primary, secondary, _("_Reload"),
+            self.on_revert_activate)
 
     def refresh_comparison(self, *args):
         """Refresh the view by clearing and redoing all comparisons"""