Prevent an args-out-of-range error during login/out
[riece] / lisp / riece-commands.el
1 ;;; riece-commands.el --- commands available in command buffer -*- lexical-binding: t -*-
2 ;; Copyright (C) 1998-2003 Daiki Ueno
3
4 ;; Author: Daiki Ueno <ueno@unixuser.org>
5 ;; Created: 1998-09-28
6 ;; Keywords: IRC, riece
7
8 ;; This file is part of Riece.
9
10 ;; This program is free software; you can redistribute it and/or modify
11 ;; it under the terms of the GNU General Public License as published by
12 ;; the Free Software Foundation; either version 2, or (at your option)
13 ;; any later version.
14
15 ;; This program is distributed in the hope that it will be useful,
16 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
17 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
18 ;; GNU General Public License for more details.
19
20 ;; You should have received a copy of the GNU General Public License
21 ;; along with GNU Emacs; see the file COPYING.  If not, write to the
22 ;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
23 ;; Boston, MA 02110-1301, USA.
24
25 ;;; Code:
26
27 (require 'riece-channel)
28 (require 'riece-complete)
29 (require 'riece-layout)
30 (require 'riece-display)
31 (require 'riece-server)
32 (require 'riece-misc)
33 (require 'riece-identity)
34 (require 'riece-message)
35 (require 'riece-mcat)
36
37 ;;; Channel movement:
38 (defun riece-command-switch-to-channel (channel)
39   (interactive (list (riece-completing-read-identity
40                       (riece-mcat "Switch to channel/user: ")
41                       riece-current-channels nil t)))
42   (unless (equal channel riece-current-channel)
43     (riece-switch-to-channel channel)))
44
45 (defun riece-command-switch-to-channel-by-number (number)
46   (interactive
47    (let ((command-name (symbol-name this-command)))
48      (if (string-match "[0-9]+$" command-name)
49          (list (string-to-number (match-string 0 command-name)))
50        (list (string-to-number (read-string (riece-mcat "Switch to number: ")))))))
51   (let ((channel (nth (1- number) riece-current-channels)))
52     (if channel
53         (riece-command-switch-to-channel channel)
54       (error "No such number!"))))
55
56 (eval-and-compile
57   (let ((number 1))
58     (while (<= number 20)
59       (defalias (intern (concat "riece-command-switch-to-channel-by-number-"
60                                 (number-to-string number)))
61         'riece-command-switch-to-channel-by-number)
62       (setq number (1+ number)))))
63
64 (defun riece-command-next-channel ()
65   "Select the next channel."
66   (interactive)
67   (when (> (length riece-current-channels) 1)
68     (let ((pointer (cdr (riece-identity-member
69                          riece-current-channel
70                          riece-current-channels))))
71       (while (and pointer
72                   (null (car pointer)))
73         (setq pointer (cdr pointer)))
74       (when (null pointer)
75         (setq pointer riece-current-channels)
76         (while (and pointer
77                     (null (car pointer)))
78           (setq pointer (cdr pointer))))
79       (if (car pointer)
80           (riece-command-switch-to-channel (car pointer))
81         (error "No such channel!")))))
82
83 (defun riece-command-previous-channel ()
84   "Select the previous channel."
85   (interactive)
86   (when (> (length riece-current-channels) 1)
87     (let ((pointer (riece-identity-member
88                     riece-current-channel
89                     riece-current-channels))
90           (start riece-current-channels)
91           channel)
92       (while (and start (not (eq start pointer)))
93         (if (car start)
94             (setq channel (car start)))
95         (setq start (cdr start)))
96       (when (null channel)
97         (setq start (copy-sequence riece-current-channels))
98         (setq start (delq nil start))
99         (and (> (length start) 1)
100              (setq channel (nth (1- (length start)) start))))
101       (if channel
102           (riece-command-switch-to-channel channel)
103         (error "No such channel!")))))
104
105 (defun riece-command-reorder-channels ()
106   "Reorder channel list."
107   (interactive)
108   (let ((binding (mapcar
109                   (lambda (channel)
110                     (if channel
111                         (riece-parse-identity channel)))
112                   riece-default-channel-binding))
113         (pointer riece-current-channels)
114         channels)
115     (while pointer
116       (if (car pointer)
117           (setq channels (riece-identity-assign-binding (car pointer) channels
118                                                         binding)))
119       (setq pointer (cdr pointer)))
120     (setq riece-current-channels channels)
121     (riece-emit-signal 'channel-list-changed)))
122
123 (defun riece-command-select-command-buffer ()
124   "Select the command buffer."
125   (interactive)
126   (let ((window (get-buffer-window riece-command-buffer)))
127     (if window
128         (select-window window))))
129
130 (defun riece-command-configure-windows ()
131   (interactive)
132   "Reconfigure windows with the current layout."
133   (riece-redisplay-buffers t))
134
135 (defun riece-command-suspend-resume ()
136   (interactive)
137   "Save or restore the current window configuration."
138   (let ((entry (assq 'riece-window-configuration (frame-parameters))))
139     (modify-frame-parameters (selected-frame)
140                              (list (cons 'riece-window-configuration
141                                          (current-window-configuration))))
142     (if (cdr entry)
143         (set-window-configuration (cdr entry))
144       (delete-other-windows))
145     (message
146      (substitute-command-keys
147       "\\[riece-command-suspend-resume] to get back the last windows"))))
148
149 (defun riece-command-change-layout (name)
150   "Select a layout-name from all current available layouts and change
151 the layout to the selected layout-name."
152   (interactive (list (completing-read (riece-mcat "Change layout: ")
153                                       riece-layout-alist)))
154   (setq riece-layout name
155         riece-save-variables-are-dirty t)
156   (riece-command-configure-windows))
157
158 (defun riece-command-toggle-channel-buffer-mode ()
159   (interactive)
160   (setq riece-channel-buffer-mode
161         (not riece-channel-buffer-mode)
162         riece-save-variables-are-dirty t)
163   (riece-command-configure-windows))
164
165 (defun riece-command-toggle-others-buffer-mode ()
166   (interactive)
167   (setq riece-others-buffer-mode
168         (not riece-others-buffer-mode)
169         riece-save-variables-are-dirty t)
170   (riece-command-configure-windows))
171
172 (defun riece-command-toggle-user-list-buffer-mode ()
173   (interactive)
174   (setq riece-user-list-buffer-mode
175         (not riece-user-list-buffer-mode)
176         riece-save-variables-are-dirty t)
177   (riece-command-configure-windows))
178
179 (defun riece-command-toggle-channel-list-buffer-mode ()
180   (interactive)
181   (setq riece-channel-list-buffer-mode
182         (not riece-channel-list-buffer-mode)
183         riece-save-variables-are-dirty t)
184   (riece-command-configure-windows))
185
186 (defun riece-command-finger (user &optional recurse)
187   (interactive
188    (let* ((completion-ignore-case t)
189           (user (riece-completing-read-identity
190                  (riece-mcat "Finger user: ")
191                  (riece-get-users-on-server (riece-current-server-name))
192                  nil nil nil nil nil t)))
193      (list user current-prefix-arg)))
194   (if recurse
195       (riece-send-string (format "WHOIS %s %s\r\n"
196                                  (riece-identity-prefix user)
197                                  (riece-identity-prefix user)))
198     (riece-send-string (format "WHOIS %s\r\n" (riece-identity-prefix user)))))
199
200 (defun riece-command-topic (topic)
201   (interactive
202    (progn
203      (riece-check-channel-commands-are-usable t)
204      (list (read-from-minibuffer
205             (riece-mcat "Set topic: ")
206             (cons (or (riece-with-server-buffer
207                           (riece-identity-server
208                            riece-current-channel)
209                         (riece-channel-get-topic
210                          (riece-identity-prefix
211                           riece-current-channel)))
212                       "")
213                   0)))))
214   (riece-send-string (format "TOPIC %s :%s\r\n"
215                              (riece-identity-prefix riece-current-channel)
216                              topic)
217                      riece-current-channel))
218
219 (defun riece-command-invite (user)
220   (interactive
221    (let ((completion-ignore-case t))
222      (riece-check-channel-commands-are-usable t)
223      (list (riece-completing-read-identity
224             (riece-mcat "Invite user: ")
225             (riece-get-users-on-server (riece-current-server-name))
226             nil nil nil nil nil t))))
227   (riece-send-string (format "INVITE %s :%s\r\n"
228                              (riece-identity-prefix user)
229                              (riece-identity-prefix riece-current-channel))))
230
231 (defun riece-command-kick (user &optional message)
232   (interactive
233    (let ((completion-ignore-case t))
234      (riece-check-channel-commands-are-usable t)
235      (list (completing-read
236             (riece-mcat "Kick user: ")
237             (riece-with-server-buffer
238                 (riece-identity-server riece-current-channel)
239               (riece-channel-get-users (riece-identity-prefix
240                                         riece-current-channel))))
241            (if current-prefix-arg
242                (read-string "Message: ")))))
243   (riece-send-string
244    (if message
245        (format "KICK %s %s :%s\r\n"
246                (riece-identity-prefix riece-current-channel)
247                user message)
248      (format "KICK %s %s\r\n"
249              (riece-identity-prefix riece-current-channel)
250              user))
251    riece-current-channel))
252
253 (defun riece-command-kick-with-ban (user pattern &optional message)
254   (interactive
255    (let ((completion-ignore-case t)
256          user)
257      (riece-check-channel-commands-are-usable t)
258      (riece-with-server-buffer (riece-identity-server riece-current-channel)
259        (setq user (completing-read
260                    (riece-mcat "Kick user: ")
261                    (riece-channel-get-users (riece-identity-prefix
262                                              riece-current-channel))))
263        (list
264         user
265         (read-from-minibuffer
266          (riece-mcat "Ban pattern: ")
267          (concat user "!" (riece-user-get-user-at-host user)))
268         (if current-prefix-arg
269             (read-string "Message: "))))))
270   (riece-send-string (format "MODE %s :+b %s\r\n"
271                              (riece-identity-prefix riece-current-channel)
272                              pattern)
273                      riece-current-channel)
274   (riece-send-string
275    (if message
276        (format "KICK %s %s :%s\r\n"
277                (riece-identity-prefix riece-current-channel)
278                user message)
279      (format "KICK %s %s\r\n"
280              (riece-identity-prefix riece-current-channel)
281              user))
282    riece-current-channel))
283
284 (defun riece-command-names (pattern)
285   (interactive
286    (let ((completion-ignore-case t))
287      (list (read-from-minibuffer
288             (riece-mcat "NAMES pattern: ")
289             (if (and riece-current-channel
290                      (riece-channel-p (riece-identity-prefix
291                                        riece-current-channel)))
292                 (cons (riece-identity-prefix riece-current-channel)
293                       0))))))
294   (if (or (not (equal pattern ""))
295           (yes-or-no-p (riece-mcat
296                         "Really want to query NAMES without argument? ")))
297       (riece-send-string (format "NAMES %s\r\n" pattern))))
298
299 (defun riece-command-who (pattern)
300   (interactive
301    (let ((completion-ignore-case t))
302      (list (read-from-minibuffer
303             (riece-mcat "WHO pattern: ")
304             (if (and riece-current-channel
305                      (riece-channel-p (riece-identity-prefix
306                                        riece-current-channel)))
307                 (cons (riece-identity-prefix riece-current-channel)
308                       0))))))
309   (if (or (not (equal pattern ""))
310           (yes-or-no-p (riece-mcat
311                         "Really want to query WHO without argument? ")))
312       (riece-send-string (format "WHO %s\r\n" pattern))))
313
314 (defun riece-command-list (pattern)
315   (interactive
316    (let ((completion-ignore-case t))
317      (list (read-from-minibuffer
318             (riece-mcat "LIST pattern: ")
319             (if (and riece-current-channel
320                      (riece-channel-p (riece-identity-prefix
321                                        riece-current-channel)))
322                 (cons (riece-identity-prefix riece-current-channel)
323                       0))))))
324   (if (or (not (equal pattern ""))
325           (yes-or-no-p (riece-mcat
326                         "Really want to query LIST without argument? ")))
327       (riece-send-string (format "LIST %s\r\n" pattern))))
328
329 (defvar riece-temp-minibuffer-message)
330 (defvar riece-overriding-server-name)
331 (defun riece-command-change-mode (channel change)
332   (interactive
333    (let* ((completion-ignore-case t)
334           (channel
335            (if current-prefix-arg
336                (riece-completing-read-identity
337                 (riece-mcat "Change mode for channel/user: ")
338                 (riece-get-identities-on-server (riece-current-server-name))
339                 nil nil nil nil nil t)
340              (riece-check-channel-commands-are-usable t)
341              riece-current-channel))
342           (riece-overriding-server-name (riece-identity-server channel))
343           (riece-temp-minibuffer-message
344            (concat (riece-mcat "[Available modes: ")
345                    (riece-with-server-buffer (riece-identity-server channel)
346                      (if (riece-channel-p (riece-identity-prefix channel))
347                          (if riece-supported-channel-modes
348                              (apply #'string riece-supported-channel-modes))
349                        (if riece-supported-user-modes
350                            (apply #'string riece-supported-user-modes))))
351                    "]")))
352      (list channel
353            (read-from-minibuffer
354             (concat (riece-concat-channel-modes
355                      channel (riece-mcat "Mode (? for help)")) ": ")
356             nil riece-minibuffer-map))))
357   (if (equal change "")
358       (riece-send-string (format "MODE %s\r\n"
359                                  (riece-identity-prefix channel)))
360     (riece-send-string (format "MODE %s %s\r\n"
361                                (riece-identity-prefix channel)
362                                change))))
363
364 (defun riece-command-set-operators (users &optional _arg)
365   (interactive
366    (progn
367      (riece-check-channel-commands-are-usable t)
368      (let ((completion-ignore-case t))
369        (list (riece-completing-read-multiple
370               (if current-prefix-arg
371                   (riece-mcat "Unset +o for users")
372                 (riece-mcat "Set +o for users"))
373               (riece-with-server-buffer
374                   (riece-identity-server riece-current-channel)
375                 (riece-channel-get-users (riece-identity-prefix
376                                          riece-current-channel)))
377               (if current-prefix-arg
378                   (lambda (user)
379                     (memq ?o (cdr user)))
380                 (lambda (user)
381                   (not (memq ?o (cdr user))))))
382              current-prefix-arg))))
383   (let (group)
384     (while users
385       (setq group (cons (car users) group)
386             users (cdr users))
387       (when (or (= (length group) 3)
388                 (null users))
389         (riece-send-string
390          (format "MODE %s %c%s %s\r\n"
391                  (riece-identity-prefix riece-current-channel)
392                  (if current-prefix-arg
393                      ?-
394                    ?+)
395                  (make-string (length group) ?o)
396                  (mapconcat #'identity (nreverse group) " ")))
397         (setq group nil)))))
398
399 (defun riece-command-set-speakers (users &optional _arg)
400   (interactive
401    (progn
402      (riece-check-channel-commands-are-usable t)
403      (let ((completion-ignore-case t))
404        (list (riece-completing-read-multiple
405               (if current-prefix-arg
406                   (riece-mcat "Unset +v for users")
407                 (riece-mcat "Set +v for users"))
408               (riece-with-server-buffer
409                   (riece-identity-server riece-current-channel)
410                 (riece-channel-get-users (riece-identity-prefix
411                                           riece-current-channel)))
412               (if current-prefix-arg
413                   (lambda (user)
414                     (memq ?v (cdr user)))
415                 (lambda (user)
416                   (not (memq ?v (cdr user))))))
417              current-prefix-arg))))
418   (let (group)
419     (while users
420       (setq group (cons (car users) group)
421             users (cdr users))
422       (when (or (= (length group) 3)
423                 (null users))
424         (riece-send-string
425          (format "MODE %s %c%s %s\r\n"
426                  (riece-identity-prefix riece-current-channel)
427                  (if current-prefix-arg
428                      ?-
429                    ?+)
430                  (make-string (length group) ?v)
431                  (mapconcat #'identity (nreverse group) " ")))
432         (setq group nil)))))
433
434 (defun riece-command-send-message (message notice)
435   "Send MESSAGE to the current channel."
436   (run-hooks 'riece-command-send-message-hook)
437   (if (equal message "")
438       (error (riece-mcat "No text to send")))
439   (riece-check-channel-commands-are-usable)
440   (if notice
441       (progn
442         (riece-send-string
443          (format "NOTICE %s :%s\r\n"
444                  (riece-identity-prefix riece-current-channel)
445                  message)
446          riece-current-channel)
447         (riece-display-message
448          (riece-make-message (riece-current-nickname) riece-current-channel
449                              message 'notice t)))
450     (riece-send-string
451      (format "PRIVMSG %s :%s\r\n"
452              (riece-identity-prefix riece-current-channel)
453              message)
454      riece-current-channel)
455     (riece-display-message
456      (riece-make-message (riece-current-nickname) riece-current-channel
457                          message nil t))))
458
459 (defun riece-command-enter-message ()
460   "Send the current line to the current channel."
461   (interactive)
462   (riece-command-send-message (buffer-substring
463                                (riece-line-beginning-position)
464                                (riece-line-end-position))
465                               nil)
466   (forward-line 1)
467   (when (eobp)
468     (insert "\n")))
469
470
471 (defun riece-command-enter-message-as-notice ()
472   "Send the current line to the current channel as NOTICE."
473   (interactive)
474   (riece-command-send-message (buffer-substring
475                                (riece-line-beginning-position)
476                                (riece-line-end-position))
477                               t)
478   (forward-line 1)
479   (when (eobp)
480     (insert "\n")))
481
482 (defun riece-command-enter-message-to-user (user)
483   "Send the current line to USER."
484   (interactive
485    (if (and (bolp) (eolp))
486        (error "No text to send")
487      (let ((completion-ignore-case t))
488        (list (riece-completing-read-identity
489               (riece-mcat "Message to user: ")
490               (riece-get-users-on-server (riece-current-server-name))
491               nil nil nil nil nil t)))))
492   (let ((text (buffer-substring
493                (riece-line-beginning-position)
494                (riece-line-end-position))))
495     (riece-send-string
496      (format "PRIVMSG %s :%s\r\n" (riece-identity-prefix user) text)
497      user)
498     (riece-display-message
499      (riece-make-message (riece-current-nickname) user text nil t)))
500   (forward-line 1)
501   (when (eobp)
502     (insert "\n")))
503
504 (defun riece-command-join-channel (target key)
505   (unless (riece-server-opened (riece-identity-server target))
506     (error "%s" (substitute-command-keys
507                  "Type \\[riece-command-open-server] to open server.")))
508   (riece-send-string (if key
509                          (format "JOIN %s :%s\r\n"
510                                  (riece-identity-prefix target)
511                                  key)
512                        (format "JOIN %s\r\n"
513                                (riece-identity-prefix target)))
514                      target))
515
516 (defun riece-command-join-partner (target)
517   (let ((pointer (riece-identity-member target riece-current-channels)))
518     (if pointer
519         (riece-command-switch-to-channel (car pointer))
520       (riece-join-channel target)
521       (riece-switch-to-channel target))))
522
523 (defun riece-command-join (targets)
524   (interactive
525    (let ((completion-ignore-case t)
526          (candidates (mapcar (lambda (channel)
527                                (list (riece-format-identity channel)))
528                              (delq nil (riece-get-identities-on-server
529                                         (riece-current-server-name)))))
530          (default (if riece-join-channel-candidate
531                       (riece-format-identity
532                        riece-join-channel-candidate))))
533      (list
534       (mapcar #'riece-parse-identity
535               (riece-completing-read-multiple
536                (if default
537                    (format (riece-mcat "Join channel/user (default %s)")
538                            default)
539                  (riece-mcat "Join channel/user"))
540                candidates nil nil nil nil default)))))
541   (let (pointer)
542     (if (and (= (length targets) 1)
543              (setq pointer (riece-identity-member (car targets)
544                                                   riece-current-channels)))
545         (riece-command-switch-to-channel (car pointer))
546       (setq pointer targets)
547       (while pointer
548         (if (riece-channel-p (riece-identity-prefix (car pointer)))
549             (riece-command-join-channel (car pointer) nil)
550           (riece-command-join-partner (car pointer)))
551         (setq pointer (cdr pointer))))))
552
553 (defun riece-command-part-channel (target message)
554   (unless (riece-server-opened (riece-identity-server target))
555     (error "%s" (substitute-command-keys
556                  "Type \\[riece-command-open-server] to open server.")))
557   (riece-send-string (if message
558                          (format "PART %s :%s\r\n"
559                                  (riece-identity-prefix target)
560                                  message)
561                        (format "PART %s\r\n"
562                                (riece-identity-prefix target)))
563                      target))
564
565 (defun riece-command-part (target &optional message)
566   (interactive
567    (progn
568      (riece-check-channel-commands-are-usable)
569      (let* ((completion-ignore-case t)
570             (target
571              (riece-completing-read-identity
572               (format (riece-mcat "Part from channel/user (default %s): ")
573                       (riece-format-identity riece-current-channel))
574               riece-current-channels nil nil nil nil
575               (riece-format-identity riece-current-channel)))
576             (message
577              (if current-prefix-arg
578                  (read-string (riece-mcat "Message: "))
579                riece-part-message)))
580        (list target message))))
581   (if (riece-identity-member target riece-current-channels)
582       (if (riece-channel-p (riece-identity-prefix target))
583           (riece-command-part-channel target message)
584         (riece-part-channel target))
585     (error "You are not talking with %s" target)))
586
587 (defun riece-command-change-nickname (nickname)
588   "Change your nickname to NICK."
589   (interactive "sEnter your nickname: ")
590   (riece-send-string (format "NICK %s\r\n" nickname)))
591
592 (defun riece-command-scroll-down (lines)
593   "Scroll LINES down dialogue buffer from command buffer."
594   (interactive "P")
595   (let ((buffer (if (and riece-channel-buffer-mode
596                          riece-current-channel)
597                     riece-channel-buffer
598                   riece-dialogue-buffer)))
599     (if (get-buffer-window buffer)
600         (condition-case nil
601             (let ((other-window-scroll-buffer buffer))
602               (scroll-other-window-down lines))
603           (beginning-of-buffer
604            (message (riece-mcat "Beginning of buffer")))))))
605
606 (defun riece-command-scroll-up (lines)
607   "Scroll LINES up dialogue buffer from command buffer."
608   (interactive "P")
609   (let ((buffer (if (and riece-channel-buffer-mode
610                          riece-current-channel)
611                     riece-channel-buffer
612                   riece-dialogue-buffer)))
613     (if (get-buffer-window buffer)
614         (condition-case nil
615             (let ((other-window-scroll-buffer buffer))
616               (scroll-other-window lines))
617           (end-of-buffer
618            (message (riece-mcat "End of buffer")))))))
619
620 (defun riece-command-user-list-scroll-down (lines)
621   "Scroll LINES down user list buffer from command buffer."
622   (interactive "P")
623   (if (get-buffer-window riece-user-list-buffer)
624       (condition-case nil
625           (let ((other-window-scroll-buffer riece-user-list-buffer))
626             (scroll-other-window-down lines))
627         (beginning-of-buffer
628          (message (riece-mcat "Beginning of buffer"))))))
629
630 (defun riece-command-user-list-scroll-up (lines)
631   "Scroll LINES up user list buffer from command buffer."
632   (interactive "P")
633   (if (get-buffer-window riece-user-list-buffer)
634       (condition-case nil
635           (let ((other-window-scroll-buffer riece-user-list-buffer))
636             (scroll-other-window lines))
637         (end-of-buffer
638          (message (riece-mcat "End of buffer"))))))
639
640 (defun riece-command-toggle-away (&optional message)
641   "Mark yourself as being away."
642   (interactive
643    (if (and (not (riece-with-server-buffer (riece-identity-server
644                                             (riece-current-nickname))
645                    (riece-user-get-away (riece-identity-prefix
646                                          (riece-current-nickname)))))
647             current-prefix-arg)
648        (list (read-from-minibuffer
649               (riece-mcat "Away message: ") (cons (or riece-away-message "")
650                                                   0)))))
651   (if (riece-with-server-buffer (riece-identity-server
652                                  (riece-current-nickname))
653         (riece-user-get-away (riece-identity-prefix
654                               (riece-current-nickname))))
655       (riece-send-string "AWAY\r\n")
656     (riece-send-string (format "AWAY :%s\r\n" (or message
657                                                   riece-away-message)))))
658
659 (defun riece-command-toggle-freeze (&optional arg)
660   "Prevent automatic scrolling of the dialogue window.
661 If prefix argument ARG is non-nil, toggle frozen status."
662   (interactive "P")
663   (with-current-buffer (if (riece-derived-mode-p 'riece-dialogue-mode)
664                            (current-buffer)
665                          (if (and riece-channel-buffer-mode
666                                   riece-channel-buffer)
667                              riece-channel-buffer
668                            riece-dialogue-buffer))
669     (setq riece-freeze (if arg
670                            (< 0 (prefix-numeric-value arg))
671                          (not riece-freeze)))
672     (riece-emit-signal 'buffer-freeze-changed
673                        (current-buffer) riece-freeze)))
674
675 (defun riece-command-toggle-own-freeze (&optional arg)
676   "Prevent automatic scrolling of the dialogue window.
677 The difference from `riece-command-freeze' is that your messages are hidden.
678 If prefix argument ARG is non-nil, toggle frozen status."
679   (interactive "P")
680   (with-current-buffer (if (riece-derived-mode-p 'riece-dialogue-mode)
681                            (current-buffer)
682                          (if (and riece-channel-buffer-mode
683                                   riece-channel-buffer)
684                              riece-channel-buffer
685                            riece-dialogue-buffer))
686     (if (if arg
687             (< 0 (prefix-numeric-value arg))
688           (not (eq riece-freeze 'own)))
689         (setq riece-freeze 'own)
690       (setq riece-freeze nil))
691     (riece-emit-signal 'buffer-freeze-changed
692                        (current-buffer) riece-freeze)))
693
694 (eval-when-compile
695   (autoload 'riece-exit "riece"))
696 (defun riece-command-quit (&optional arg)
697   "Quit IRC."
698   (interactive "P")
699   (if (null riece-server-process-alist)
700       (progn
701         (message (riece-mcat "No server process"))
702         (ding))
703     (if (y-or-n-p (riece-mcat "Really quit IRC? "))
704         (let ((message
705                (if arg
706                    (read-string (riece-mcat "Message: "))
707                  riece-quit-message))
708               (alist riece-server-process-alist))
709           (while alist
710             (riece-quit-server-process (cdr (car alist)) message)
711             (setq alist (cdr alist)))))))
712
713 (defun riece-command-raw (command)
714   "Enter raw IRC command, which is sent to the server."
715   (interactive "sIRC command: ")
716   (riece-send-string (concat command "\r\n")))
717
718 (defun riece-command-beginning-of-buffer ()
719   "Scroll channel buffer to the beginning."
720   (interactive)
721   (let (buffer window)
722     (setq buffer (if riece-channel-buffer-mode
723                      riece-channel-buffer
724                    riece-dialogue-buffer))
725     (or (setq window (get-buffer-window buffer))
726         (setq window (get-buffer-window riece-dialogue-buffer)
727               buffer riece-dialogue-buffer))
728     (when window
729       (save-selected-window
730         (select-window window)
731         (goto-char (point-min))))))
732
733 (defun riece-command-end-of-buffer ()
734   "Scroll channel buffer to the end."
735   (interactive)
736   (let (buffer window)
737     (setq buffer (if riece-channel-buffer-mode
738                      riece-channel-buffer
739                    riece-dialogue-buffer))
740     (or (setq window (get-buffer-window buffer))
741         (setq window (get-buffer-window riece-dialogue-buffer)
742               buffer riece-dialogue-buffer))
743     (when window
744       (save-selected-window
745         (select-window window)
746         (goto-char (point-max))))))
747
748 (defun riece-command-copy-region (start end)
749   "Move current region between START and END to `kill-ring'."
750   (interactive "r")
751   (kill-new (buffer-substring-no-properties start end)))
752
753 (defun riece-command-complete-user ()
754   "Complete a user name in the current buffer."
755   (interactive)
756   (let* ((completion-ignore-case t)
757          (table (mapcar (lambda (user)
758                           (list (riece-format-identity user t)))
759                         (riece-get-users-on-server
760                          (riece-current-server-name))))
761          (current (or (current-word) ""))
762          (completion (try-completion current table))
763          (all (all-completions current table)))
764     (if (eq completion t)
765         nil
766       (if (null completion)
767           (message (riece-mcat "Can't find completion for \"%s\"") current)
768         (if (equal current completion)
769             (with-output-to-temp-buffer "*Help*"
770               (display-completion-list all))
771           (re-search-forward "\\>" nil t)
772           (delete-region (point) (- (point) (length current)))
773           (insert completion))))))
774
775 (defun riece-command-open-server (server-name)
776   (interactive
777    (list (completing-read (riece-mcat "Open server: ") riece-server-alist)))
778   (if (riece-server-process server-name)
779       (error "%s is already opened" server-name))
780   (riece-open-server
781    (riece-server-name-to-server (if (equal server-name "")
782                                     riece-server
783                                   server-name))
784    server-name))
785
786 (defun riece-command-close-server (server-name &optional message)
787   (interactive
788    (list (completing-read (riece-mcat "Close server: ")
789                           riece-server-process-alist)
790          (if current-prefix-arg
791              (read-string (riece-mcat "Message: "))
792            riece-quit-message)))
793   (let ((process (riece-server-process server-name)))
794     (unless process
795       (error "%s is not opened" server-name))
796     (riece-quit-server-process process message)))
797
798 (defun riece-command-universal-server-name-argument ()
799   (interactive)
800   (let* ((riece-overriding-server-name
801           (completing-read (riece-mcat "Server: ") riece-server-process-alist))
802          (command
803           (key-binding (read-key-sequence
804                         (format (riece-mcat "Command to execute on \"%s\":")
805                                 riece-overriding-server-name)))))
806     (message "")
807     (call-interactively command)))
808
809 (eval-when-compile
810   (autoload 'riece-save-variables-files "riece"))
811 (defun riece-command-save-variables ()
812   "Save `riece-variables-file'."
813   (interactive)
814   (if (or riece-save-variables-are-dirty
815           (y-or-n-p (riece-mcat "No changes made.  Save anyway? ")))
816       (riece-save-variables-files)))
817
818 (provide 'riece-commands)
819
820 ;;; riece-commands.el ends here