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February 2, 2017 17:11
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Emacs Wanderlust mail notifier
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;;; -*- Mode: EMACS-LISP -*- | |
;;; A fancy notify hook for Wanderlust. | |
;;; | |
;;; Time-stamp: <2017-02-02 07:10:29 fred> | |
;;; | |
;; Note: elmo must be loaded before byte-compiling this. Otherwise, | |
;; when the hook runs it will produce an invalid-funcion error because | |
;; of the elmo-imap4-response-value macro. | |
;;; This isn't used as a hook. Instead, it gets run by a timer. | |
;;; Put the following in wl-init.el. | |
;;; | |
;;; (setq fmg-biff-timer (run-with-timer 30 30 'fmg-biff-hook)) | |
;;; (add-hook 'wl-exit-hook (lambda nil (cancel-timer fmg-biff-timer))) | |
;;; | |
;;; All the complication is to allow displaying counts and summaries | |
;;; of unread messages. | |
;;; | |
;;; It may be possible to add this to wl-biff-notfy-hook. But the way | |
;;; it is works for now. | |
;;; Variables for the notifier and sound player. | |
;; Configure these to your preference. | |
;; Sox player --- works with many different file formats. If you | |
;; change this you will probably have to change the "dingie" process | |
;; invocation below to reflect the correct arguments for your player. | |
(defvar *mb-player* "/usr/bin/play") | |
(defvar *mb-player-volume* ".33") ; Play at 33% volume. | |
(defvar *mb-sound* "~/lib/sounds/emailreceived.mp3") | |
;; Standard freedesktop notifier. If you change the notifier you may | |
;; have to change the "showie" process invocation below to reflect the | |
;; correct arguments for whatever notifier you choose. | |
(defvar *mb-popup* "/usr/bin/notify-send") | |
;; This is not a file; it is a standard icon. It is set by whatever | |
;; desktop theme you may have set up. You can also use a file of your | |
;; choice. | |
(defvar *mb-icon* "mail-message-new") | |
;; | |
;; A modified version of djcb-popup. | |
(defun fmg-notify (title msg &optional icon sound) | |
"Show a popup and play a sound; TITLE is the title of the | |
message, MSG is the content. A default icon will be displayed and | |
a default sound will be played. Both can be replaced by supplying | |
the optional arguments." | |
(start-process "showie" nil *mb-popup* | |
"-i" (or icon *mb-icon*) | |
;; NOTA BENE!!! url-insert-entities-in-string is | |
;; necessary to avoid disruption by shell characters | |
;; such as "<" or ">". Email messages headers often | |
;; have these. | |
(url-insert-entities-in-string title) | |
(url-insert-entities-in-string msg)) | |
(start-process "dingie" nil *mb-player* | |
"-q" "-v" *mb-player-volume* | |
(expand-file-name (or sound *mb-sound*))) | |
nil) | |
(dolist (b buffers) | |
(with-current-buffer b | |
(save-excursion | |
(wl-summary-sync-update)))))) | |
;;; XXX Unfortunately for some reason the "new" value returned from | |
;;; ELMO-IMAP4-FOLDER-DIFF-PLUGGED doesn't seem to reflect reality. So | |
;;; in order to figure out when we have new messages, we sum the | |
;;; number of messages in each folder and then compare that with the | |
;;; old total. If there are more, we collect the summary information | |
;;; and display it, and save the new message total. | |
;;; Save last count of total messages in all folders we check. | |
(defvar fmg-biff-hook-last-total 0) | |
;;; How many email message summaries do you want to see in the | |
;;; notification? | |
(defvar *max-summaries* 10) | |
(defun fmg-biff-hook () | |
(let ((summaries "") | |
(msg-unseen 0) | |
(msg-total 0)) | |
;; Get total number of messages in all folders. | |
(dolist (f wl-biff-check-folder-list) | |
(let* ((folder (elmo-get-folder f)) | |
(session (elmo-imap4-get-session folder))) | |
;;; debug | |
;;; (message "Checking folder %s" f) | |
(multiple-value-bind (new unseen total) | |
(elmo-imap4-folder-diff-plugged folder) | |
(incf msg-total total)))) | |
;;; debug | |
;;; (message "Old message count: %d; new count %d" fmg-biff-hook-last-total msg-total) | |
(when (> msg-total fmg-biff-hook-last-total) | |
;; Looks like we got some new messages. | |
(setq fmg-biff-hook-last-total msg-total) | |
;; Because unread mail may not reflect new messages, we wind up | |
;; doing this loop twice. This avoids sending the SELECT command | |
;; to the imap server repeatedly when no new messages have come. | |
(dolist (f wl-biff-check-folder-list) | |
(wl-folder-sync-entity f) | |
(let* ((folder (elmo-get-folder f)) | |
(session (elmo-imap4-get-session folder))) | |
(multiple-value-bind (new unseen total) | |
(elmo-imap4-folder-diff-plugged folder) | |
(incf msg-unseen unseen) | |
;;; debug | |
;;; (message "%d messages unread (%d new) out of %d in folder %s" unseen new total f) | |
;; Collect unseen message summaries from each folder into SUMMARIES variable. | |
(dotimes (i (min unseen *max-summaries*)) | |
(elmo-imap4-send-command-wait session "SELECT \"INBOX\"") | |
(let* ((number (- total i)) | |
(command | |
(format | |
"FETCH %d (FLAGS BODY.PEEK[HEADER.FIELDS (DATE FROM SUBJECT)])" | |
number)) | |
(summary | |
(elmo-imap4-response-bodydetail-text | |
(elmo-imap4-response-value | |
(elmo-imap4-send-command-wait session command) | |
'fetch)))) | |
(setq summaries (concatenate 'string summaries summary))))))) | |
;; Display message summaries to the user. | |
(fmg-notify | |
(format "You have %d new email %s" | |
msg-unseen | |
(if (= msg-unseen 1) "message" "messages")) | |
summaries) | |
(fmg-wl-update-current-summaries) | |
) | |
;; If a message got deleted or something, update the counter. | |
(when (< msg-total fmg-biff-hook-last-total) | |
(setq fmg-biff-hook-last-total msg-total)))) | |
(message "fmg-biff-hook loaded.") | |
;;; Local Variables: | |
;;; eval: (eldoc-mode 1) | |
;;; End: |
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Something dropped out from my original cut-and-paste. But since I posted anonymously I can't do anything to it.
Please use the forked version under user fgilham.