[anjuta] Fix check order for anjuta editor in glade plugin.

[Johannes Schmid <jhs src gnome org>]

commit 146acfc9cd69593f274d681109e2e06081d5f841
Author: Marco Diego AurÃlio Mesquita <marcodiegomesquita gmail com>
Date:   Mon Feb 27 10:31:25 2012 -0300

    Fix check order for anjuta editor in glade plugin.

 plugins/glade/plugin.c |    6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)
---
diff --git a/plugins/glade/plugin.c b/plugins/glade/plugin.c
index 31884e9..89e11ab 100644
--- a/plugins/glade/plugin.c
+++ b/plugins/glade/plugin.c
@@ -127,14 +127,14 @@ signal_editor_signal_activated_cb (GladeSignalEditor* seditor,
 	if(!doc)
 		return;
 
+    if (!IANJUTA_IS_EDITOR (doc))
+        return;
+
 	current_editor = IANJUTA_EDITOR (doc);
 
     if(!current_editor)
         return;
 
-    if (!IANJUTA_IS_EDITOR (doc))
-        return;
-
     g_signal_emit_by_name (G_OBJECT (current_editor), "glade-callback-add",
                                                       G_OBJECT_TYPE_NAME (glade_widget_get_object (gwidget)),
                                                       glade_signal_get_name (signal),