[epiphany] e-web-view: enable back/forward mouse buttons

[Diego Escalante Urrelo <diegoe src gnome org>]

commit 8c53252b99184e5ebbbd871cef90ac77b64a28c9
Author: Diego Escalante Urrelo <diegoe igalia com>
Date:   Tue Dec 11 13:27:45 2012 -0500

    e-web-view: enable back/forward mouse buttons
    
    Based on nautilus' (nautilus-window.c) button numbers and the bugzilla
    reports by users.
    
    Thank you Vincas Dargis and Joe Barnett for the previous patches.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=337852

 embed/ephy-web-view.c |   11 +++++++++++
 1 files changed, 11 insertions(+), 0 deletions(-)
---
diff --git a/embed/ephy-web-view.c b/embed/ephy-web-view.c
index 2acc8b5..332b9d4 100644
--- a/embed/ephy-web-view.c
+++ b/embed/ephy-web-view.c
@@ -517,6 +517,17 @@ ephy_web_view_button_press_event (GtkWidget *widget, GdkEventButton *event)
   if (event->button == 3 && event->state == GDK_CONTROL_MASK)
     return FALSE;
 
+  /* Handle typical back/forward mouse buttons. */
+  if (event->button == 8) {
+    webkit_web_view_go_back (WEBKIT_WEB_VIEW (widget));
+    return TRUE;
+  }
+
+  if (event->button == 9) {
+    webkit_web_view_go_forward (WEBKIT_WEB_VIEW (widget));
+    return TRUE;
+  }
+
   /* Let WebKitWebView handle this. */
   return GTK_WIDGET_CLASS (ephy_web_view_parent_class)->button_press_event (widget, event);
 }