[PATCH] contrib: pick: close message pane when quitting from show in the message pane

[Tomi Ollila]

On Tue, Dec 25 2012, Mark Walters <markwalters1009 at gmail.com> wrote:

> We add a hook to the show buffer in the message window to close the
> message window when that buffer quits.  It checks that the
> message-window is still displaying the show-message buffer and then
> closes it.
> ---
> This is just a slightly tidier version of the previous patch. It is
> more natural to reuse the nomuch-pick-message-window variable (as it
> serves the same pupose) rather than adding a new variable and
> cluttering up the name space (and it also keeps the clutter in the
> notmuch-pick namespace).
>
> I think this a good candidate for 0.15: it fixes an annoying bug in pick. 
>
> Best wishes
>
> Mark
>
>
>  contrib/notmuch-pick/notmuch-pick.el |   19 +++++++++++++++++++
>  1 files changed, 19 insertions(+), 0 deletions(-)
>
> diff --git a/contrib/notmuch-pick/notmuch-pick.el b/contrib/notmuch-pick/notmuch-pick.el
> index 1a553d4..7d01f4c 100644
> --- a/contrib/notmuch-pick/notmuch-pick.el
> +++ b/contrib/notmuch-pick/notmuch-pick.el
> @@ -157,6 +157,10 @@
>  (make-variable-buffer-local 'notmuch-pick-query-context)
>  (defvar notmuch-pick-buffer-name nil)
>  (make-variable-buffer-local 'notmuch-pick-buffer-name)
> +;; This variable is the window used for the message pane. It is set
> +;; in both the parent pick buffer and the child show buffer. It is
> +;; used to try and close the message pane when quitting pick or the
> +;; child show buffer.
>  (defvar notmuch-pick-message-window nil)
>  (make-variable-buffer-local 'notmuch-pick-message-window)
>  (put 'notmuch-pick-message-window 'permanent-local t)
> @@ -324,6 +328,16 @@ Does NOT change the database."
>                  (notmuch-prettify-subject (notmuch-search-find-subject)))
>    (notmuch-pick-show-match-message-with-wait))
>  
> +(defun notmuch-pick-message-window-kill-hook ()
> +  (let ((buffer (current-buffer)))
> +    (when (and (window-live-p notmuch-pick-message-window)
> +	       (eq (window-buffer notmuch-pick-message-window) buffer))
> +      ;; We do not want an error if this is the sole window in the
> +      ;; frame and I do not know how to test for that in emacs pre
> +      ;; 24. Hence we just ignore-errors.
> +      (ignore-errors
> +	(delete-window notmuch-pick-message-window)))))
> +
>  (defun notmuch-pick-show-message ()
>    "Show the current message (in split-pane)."
>    (interactive)
> @@ -341,6 +355,11 @@ Does NOT change the database."
>  	(let ((notmuch-show-indent-messages-width 0))
>  	  (setq current-prefix-arg '(4))
>  	  (setq buffer (notmuch-show id nil nil nil))))
> +      ;; We need the `let' as notmuch-pick-message-window is buffer local.
> +      (let ((window notmuch-pick-message-window))
> +	(with-current-buffer buffer
> +	  (setq notmuch-pick-message-window window)
> +	  (add-hook 'kill-buffer-hook 'notmuch-pick-message-window-kill-hook)))
>        (notmuch-pick-tag-update-display (list "-unread"))
>        (setq notmuch-pick-message-buffer buffer))))


LGTM. 

Tomi

PS: (unrelated) Mark: check if notmuch-show-mark-read-tags should be used in
   line:
   (notmuch-pick-tag-update-display (list "-unread"))

> -- 
> 1.7.9.1