[gtk+] textview: Update handles after flushing scroll changes

[Carlos Garnacho <carlosg src gnome org>]

commit 243cfd21a292ec4554d1aaf9e8839f4ca00083f9
Author: Carlos Garnacho <carlosg gnome org>
Date:   Mon Jun 1 16:21:20 2015 +0100

    textview: Update handles after flushing scroll changes
    
    Text insertion/pasting might trigger scroll, so we'd have to wait
    until the text was revalidated and the scrolling truly happened
    before we can check the new handle(s) position.

 gtk/gtktextview.c |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)
---
diff --git a/gtk/gtktextview.c b/gtk/gtktextview.c
index bbc033a..0a854ab 100644
--- a/gtk/gtktextview.c
+++ b/gtk/gtktextview.c
@@ -2366,6 +2366,10 @@ gtk_text_view_flush_scroll (GtkTextView *text_view)
                                          scroll->xalign,
                                          scroll->yalign);
 
+  if (text_view->priv->text_handle)
+    gtk_text_view_update_handles (text_view,
+                                  _gtk_text_handle_get_mode (text_view->priv->text_handle));
+
   free_pending_scroll (scroll);
 
   return retval;