[gnome-builder] vim: add ":bnext" command

[Christian Hergert <chergert src gnome org>]

commit d9b9b49d71ca2e372e53a0ebd4bfa7cae0687e1c
Author: Alexandre Franke <alexandre franke gmail com>
Date:   Fri Apr 3 02:26:45 2015 +0200

    vim: add ":bnext" command
    
    Treats "tabs" as buffers and switches to the next one.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=747343

 src/vim/gb-vim.c |   11 +++++++++++
 1 files changed, 11 insertions(+), 0 deletions(-)
---
diff --git a/src/vim/gb-vim.c b/src/vim/gb-vim.c
index 206f78a..88c1b43 100644
--- a/src/vim/gb-vim.c
+++ b/src/vim/gb-vim.c
@@ -566,6 +566,16 @@ gb_vim_command_sort (GtkSourceView  *source_view,
 }
 
 static gboolean
+gb_vim_command_bnext (GtkSourceView  *source_view,
+                      const gchar    *command,
+                      const gchar    *options,
+                      GError        **error)
+{
+  gb_widget_activate_action (GTK_WIDGET (source_view), "view-stack", "next-view", NULL);
+  return TRUE;
+}
+
+static gboolean
 gb_vim_command_cnext (GtkSourceView  *source_view,
                       const gchar    *command,
                       const gchar    *options,
@@ -840,6 +850,7 @@ invalid_request:
 }
 
 static const GbVimCommand vim_commands[] = {
+  { "bnext",       gb_vim_command_bnext },
   { "cnext",       gb_vim_command_cnext },
   { "colorscheme", gb_vim_command_colorscheme },
   { "cprevious",   gb_vim_command_cprevious },