[vte] a11y: Emit missing space character insertion

[Christian Persch <chpe src gnome org>]

commit 17c23b253eb96227d036768ebbf101930aadec73
Author: Samuel Thibault <samuel thibault ens-lyon org>
Date:   Thu Oct 1 01:33:00 2015 +0200

    a11y: Emit missing space character insertion
    
    When backspacing over space, content comparison would not find any
    difference, so vte always emits a space character deletion by hand,
    so that screen readers speak it, see bug 150858. That however makes
    the announced text incoherent, thus confusing brltty.
    
    This commit adds emitting a space character insertion, to get back to
    coherent content.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=150858
    https://bugzilla.gnome.org/show_bug.cgi?id=754964

 src/vteaccess.cc |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/src/vteaccess.cc b/src/vteaccess.cc
index e33b3fd..c5c6414 100644
--- a/src/vteaccess.cc
+++ b/src/vteaccess.cc
@@ -441,6 +441,8 @@ vte_terminal_accessible_text_modified(VteTerminal *terminal, gpointer data)
                                         old, caret_offset, 1);
                 priv->snapshot_text = saved_text;
                 priv->snapshot_characters = saved_characters;
+               emit_text_changed_insert(G_OBJECT(accessible),
+                                        old, caret_offset, 1);
        }