Ian Main wrote:
> This patch adds a few changes to moving between threads:
> 
> - It supports 'scrolloff' so that if you have this set it will move the
>   buffer and cursor so the next/prev email starts at the top of the
>   screen.
> - It adds the ability to use shift-tab to go to the previous msg in
>   the thread.
> 
>     Ian
> ---
>  vim/notmuch.vim | 24 ++++++++++++++++++++++--
>  1 file changed, 22 insertions(+), 2 deletions(-)
> 
> diff --git a/vim/notmuch.vim b/vim/notmuch.vim
> index 331e930..95e5c4b 100644
> --- a/vim/notmuch.vim
> +++ b/vim/notmuch.vim
> @@ -39,6 +39,7 @@ let g:notmuch_show_maps = {
>  	\ 'p':		'show_save_patches()',
>  	\ 'r':		'show_reply()',
>  	\ '?':		'show_info()',
> +	\ '<S-Tab>':	'show_prev_msg()',
>  	\ '<Tab>':	'show_next_msg()',
>  	\ 'c':		'compose()',
>  	\ }
> @@ -113,6 +114,23 @@ EOF
>  	call s:kill_this_buffer()
>  endfunction
>  
> +function! s:show_prev_msg()
> +ruby << EOF
> +	r, c = $curwin.cursor
> +	n = $curbuf.line_number
> +	i = $messages.index { |m| n >= m.start && n <= m.end }
> +	m = $messages[i - 1] if i > 0
> +	vim_puts ("messages index is #{i} and m is #{m}")
> +	if m
> +		r = m.body_start + 1
> +		scrolloff = VIM::evaluate("&scrolloff")
> +		VIM::command("normal #{m.start + scrolloff}zt")
> +		$curwin.cursor = r + scrolloff, c
> +		vim_puts("moving to #{m.start + scrolloff}")

Woops, forgot to remove the vim_puts debugging.

    Ian