[vte] widget: Fix triple click behavior

[Egmont Koblinger <egmontkob src gnome org>]

commit b72d5b7bd39aceac6d1163e0fe0a3cd9012fcaa5
Author: Egmont Koblinger <egmont gmail com>
Date:   Sun Jan 18 17:54:12 2015 +0100

    widget: Fix triple click behavior
    
    https://bugzilla.gnome.org/show_bug.cgi?id=725909#c1

 src/vte.c |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)
---
diff --git a/src/vte.c b/src/vte.c
index b63c745..2f3a538 100644
--- a/src/vte.c
+++ b/src/vte.c
@@ -6601,6 +6601,12 @@ vte_terminal_extend_selection_expand (VteTerminal *terminal)
                        sc->row = j;
                }
                /* And move forward as far as we can go. */
+                if (ec->col < 0) {
+                        /* If triple clicking on an unused area, ec already points
+                         * to the beginning of the next line after the second click.
+                         * Go back to the actual row we're at. See bug 725909. */
+                        ec->row--;
+                }
                j = ec->row;
                while (_vte_ring_contains (screen->row_data, j) &&
                       vte_line_is_wrappable(terminal, j)) {