[latexila] Completion info window sizing: more robust

[SÃbastien Wilmet <swilmet src gnome org>]

commit 94a3fef753e0391a85cc132f0b8b8c855edf17aa
Author: SÃbastien Wilmet <swilmet gnome org>
Date:   Tue Sep 25 23:30:31 2012 +0200

    Completion info window sizing: more robust

 src/completion.vala    |    7 +++++--
 src/document_view.vala |    7 +++++--
 2 files changed, 10 insertions(+), 4 deletions(-)
---
diff --git a/src/completion.vala b/src/completion.vala
index ee00c17..1ab976d 100644
--- a/src/completion.vala
+++ b/src/completion.vala
@@ -305,8 +305,11 @@ public class CompletionProvider : GLib.Object, SourceCompletionProvider
         _calltip_window = new SourceCompletionInfo ();
 
         // HACK: no scrollbars
-        ScrolledWindow scrolled_window = _calltip_window.get_child () as ScrolledWindow;
-        scrolled_window.set_policy (PolicyType.NEVER, PolicyType.NEVER);
+        if (_calltip_window.get_child () is ScrolledWindow)
+        {
+            ScrolledWindow sw = _calltip_window.get_child () as ScrolledWindow;
+            sw.set_policy (PolicyType.NEVER, PolicyType.NEVER);
+        }
 
         _calltip_window_label = new Label (null);
         _calltip_window.set_widget (_calltip_window_label);
diff --git a/src/document_view.vala b/src/document_view.vala
index f105fe8..2777de2 100644
--- a/src/document_view.vala
+++ b/src/document_view.vala
@@ -75,8 +75,11 @@ public class DocumentView : Gtk.SourceView
             SourceCompletionInfo info = completion.get_info_window ();
 
             // This code is highly dependent on the implementation in GtkSourceView.
-            ScrolledWindow scrolled_window = info.get_child () as ScrolledWindow;
-            scrolled_window.set_policy (PolicyType.NEVER, PolicyType.NEVER);
+            if (info.get_child () is ScrolledWindow)
+            {
+                ScrolledWindow scrolled_window = info.get_child () as ScrolledWindow;
+                scrolled_window.set_policy (PolicyType.NEVER, PolicyType.NEVER);
+            }
 
             info.draw.connect (() =>
             {