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jabber-muc-nick-completion.el
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jabber-muc-nick-completion.el
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;;; jabber-muc-nick-completion.el --- Add nick completion abilyty to emacs-jabber
;; Copyright (C) 2008 - Terechkov Evgenii - evg@altlinux.org
;; Copyright (C) 2007, 2008, 2010 - Kirill A. Korinskiy - catap@catap.ru
;; Copyright (C) 2007 - Serguei Jidkov - jsv@e-mail.ru
;; This file is a part of jabber.el.
;; This program is free software; you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation; either version 2 of the License, or
;; (at your option) any later version.
;; This program is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; GNU General Public License for more details.
;; You should have received a copy of the GNU General Public License
;; along with this program; if not, write to the Free Software
;; Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
;;; User customizations here:
(defcustom jabber-muc-completion-delimiter ": "
"String to add to end of completion line."
:type 'string
:group 'jabber-chat)
(defcustom jabber-muc-looks-personaling-symbols '("," ":" ">")
"Symbols for personaling messages"
:type '(repeat string)
:group 'jabber-chat)
(defcustom jabber-muc-personal-message-bonus (* 60 20)
"Bonus for personal message, in seconds."
:type 'integer
:group 'jabber-chat)
(defcustom jabber-muc-all-string "all"
"String meaning all conference members (to insert in completion). Note that \":\" or alike not needed (it appended in other string)"
:type 'string
:group 'jabber-chat)
;;; History:
;;
;;; Code:
(require 'cl)
(require 'jabber-muc)
(require 'hippie-exp)
(defvar *jabber-muc-participant-last-speaking* nil
"Global alist in form (group . ((member . time-of-last-speaking) ...) ...).")
(defun jabber-my-nick (&optional group)
"Return my jabber nick in GROUP."
(let ((room (or group jabber-group)))
(cdr (or (assoc room *jabber-active-groupchats*)
(assoc room jabber-muc-default-nicknames)))
))
;;;###autoload
(defun jabber-muc-looks-like-personal-p (message &optional group)
"Return non-nil if jabber MESSAGE is addresed to me.
Optional argument GROUP to look."
(if message (string-match (concat
"^"
(jabber-my-nick group)
(regexp-opt jabber-muc-looks-personaling-symbols))
message)
nil))
(defun jabber-muc-nicknames ()
"List of conference participants, excluding self, or nil if we not in conference."
(delete-if '(lambda (nick)
(string= nick (jabber-my-nick)))
(append (mapcar 'car (cdr (assoc jabber-group jabber-muc-participants))) (list jabber-muc-all-string))))
(defun jabber-muc-participant-update-activity (group nick time)
"Updates NICK's time of last speaking in GROUP to TIME."
(let* ((room (assoc group *jabber-muc-participant-last-speaking*))
(room-activity (cdr room))
(entry (assoc nick room-activity))
(old-time (or (cdr entry) 0)))
(when (> time old-time)
;; don't use put-alist for speed
(progn
(if entry (setcdr entry time)
(setq room-activity
(cons (cons nick time) room-activity)))
(if room (setcdr room room-activity)
(setq *jabber-muc-participant-last-speaking*
(cons (cons group room-activity)
*jabber-muc-participant-last-speaking*)))))))
(defun jabber-muc-track-message-time (nick group buffer text &optional title)
"Tracks time of NICK's last speaking in GROUP."
(when nick
(let ((time (float-time)))
(jabber-muc-participant-update-activity
group
nick
(if (jabber-muc-looks-like-personal-p text group)
(+ time jabber-muc-personal-message-bonus)
time)))))
(defun jabber-sort-nicks (nicks group)
"Return list of NICKS in GROUP, sorted."
(let ((times (cdr (assoc group *jabber-muc-participant-last-speaking*))))
(flet ((fetch-time (nick) (or (assoc nick times) (cons nick 0)))
(cmp (nt1 nt2)
(let ((t1 (cdr nt1))
(t2 (cdr nt2)))
(if (and (zerop t1) (zerop t2))
(string<
(car nt1)
(car nt2))
(> t1 t2)))))
(mapcar 'car (sort (mapcar 'fetch-time nicks)
'cmp)))))
(defun jabber-muc-beginning-of-line ()
"Return position of line begining."
(save-excursion
(if (looking-back jabber-muc-completion-delimiter)
(backward-char (+ (length jabber-muc-completion-delimiter) 1)))
(skip-syntax-backward "^-")
(point)))
;;; One big hack:
(defun jabber-muc-completion-delete-last-tried ()
"Delete last tried competion variand from line."
(let ((last-tried (car he-tried-table)))
(when last-tried
(goto-char he-string-beg)
(delete-char (length last-tried))
(ignore-errors (delete-char (length jabber-muc-completion-delimiter)))
)))
(defun try-expand-jabber-muc (old)
"Try to expand target nick in MUC according to last speaking time.
OLD is last tried nickname."
(unless jabber-chatting-with
(unless old
(let ((nicknames (jabber-muc-nicknames)))
(he-init-string (jabber-muc-beginning-of-line) (point))
(setq he-expand-list (jabber-sort-nicks (all-completions he-search-string (mapcar 'list nicknames)) jabber-group))))
(setq he-expand-list
(delete-if '(lambda (x)
(he-string-member x he-tried-table))
he-expand-list))
(if (null he-expand-list)
(progn
(when old
;; here and later : its hack to workaround
;; he-substitute-string work which cant substitute empty
;; lines
(if (string= he-search-string "")
(jabber-muc-completion-delete-last-tried)
(he-reset-string)))
())
(let ((subst (if (eq (line-beginning-position) (jabber-muc-beginning-of-line))
(concat (car he-expand-list) jabber-muc-completion-delimiter)
(car he-expand-list))))
(if (not (string= he-search-string ""))
(he-substitute-string subst)
(jabber-muc-completion-delete-last-tried)
(progn
(insert subst)
(if (looking-back (concat "^" (regexp-quote (car he-expand-list))))
(unless (looking-back (concat "^" (regexp-quote (car he-expand-list)) jabber-muc-completion-delimiter))
(insert jabber-muc-completion-delimiter)))
)
))
(setq he-tried-table (cons (car he-expand-list) (cdr he-tried-table)))
(setq he-expand-list (cdr he-expand-list))
t)))
(add-hook 'jabber-muc-hooks 'jabber-muc-track-message-time)
(fset 'jabber-muc-completion (make-hippie-expand-function '(try-expand-jabber-muc)))
(define-key jabber-chat-mode-map [?\t] 'jabber-muc-completion)
(provide 'jabber-muc-nick-completion)
;; arch-tag: 2a81ac72-d261-11dc-be91-000a95c2fcd0
;;; jabber-muc-completion.el ends here