[gtk+] entrycompletion: Realize toplevel before attempting a grab

[Timm Bäder <baedert src gnome org>]

commit 4d36a0bf352cc69e85a065e49119a7f6804bc9e2
Author: Timm Bäder <mail baedert org>
Date:   Fri Jan 19 15:15:09 2018 +0100

    entrycompletion: Realize toplevel before attempting a grab
    
    Otherwise, gtk_widget_get_window returns NULL and we can't successfully
    perform a grab via the later gdk_set_grab call. This fixes the entry
    completion in the file chooser not working.

 gtk/gtkentrycompletion.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/gtk/gtkentrycompletion.c b/gtk/gtkentrycompletion.c
index ae3f895..c80f8b0 100644
--- a/gtk/gtkentrycompletion.c
+++ b/gtk/gtkentrycompletion.c
@@ -1592,6 +1592,7 @@ gtk_entry_completion_popup (GtkEntryCompletion *completion)
 
   gtk_window_set_display (GTK_WINDOW (completion->priv->popup_window),
                           gtk_widget_get_display (completion->priv->entry));
+  gtk_widget_realize (completion->priv->popup_window);
 
   if (completion->priv->device)
     {