1 ;;; riece-message.el --- generate and display message line
2 ;; Copyright (C) 1999-2003 Daiki Ueno
4 ;; Author: Daiki Ueno <ueno@unixuser.org>
7 ;; This file is part of Riece.
9 ;; This program is free software; you can redistribute it and/or modify
10 ;; it under the terms of the GNU General Public License as published by
11 ;; the Free Software Foundation; either version 2, or (at your option)
14 ;; This program is distributed in the hope that it will be useful,
15 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
16 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 ;; GNU General Public License for more details.
19 ;; You should have received a copy of the GNU General Public License
20 ;; along with GNU Emacs; see the file COPYING. If not, write to the
21 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
22 ;; Boston, MA 02111-1307, USA.
26 (require 'riece-identity)
27 (require 'riece-channel)
29 (require 'riece-display)
32 (defgroup riece-message nil
38 (defcustom riece-message-filter-functions nil
39 "Functions to filter incoming messages."
41 :group 'riece-message)
43 (defcustom riece-message-make-open-bracket-function
44 #'riece-message-make-open-bracket
45 "Function which makes `open-bracket' string for each message."
47 :group 'riece-message)
49 (defcustom riece-message-make-close-bracket-function
50 #'riece-message-make-close-bracket
51 "Function which makes `close-bracket' string for each message."
53 :group 'riece-message)
55 (defcustom riece-message-make-name-function
56 #'riece-message-make-name
57 "Function which makes local identity for each message."
59 :group 'riece-message)
61 (defcustom riece-message-make-global-name-function
62 #'riece-message-make-global-name
63 "Function which makes global identity for each message."
65 :group 'riece-message)
67 (defun riece-message-make-open-bracket (message)
68 "Make `open-bracket' string for MESSAGE."
69 (if (riece-message-own-p message)
71 (if (eq (riece-message-type message) 'notice)
73 (if (riece-message-private-p message)
75 (if (riece-message-external-p message)
79 (defun riece-message-make-close-bracket (message)
80 "Make `close-bracket' string for MESSAGE."
81 (if (riece-message-own-p message)
83 (if (eq (riece-message-type message) 'notice)
85 (if (riece-message-private-p message)
87 (if (riece-message-external-p message)
91 (defun riece-message-make-name (message)
92 "Make local identity for MESSAGE."
93 (if (riece-message-private-p message)
94 (if (riece-message-own-p message)
95 (riece-format-identity (riece-message-target message) t)
96 (riece-format-identity (riece-message-speaker message) t))
97 (riece-format-identity (riece-message-speaker message) t)))
99 (defun riece-message-make-global-name (message)
100 "Make global identity for MESSAGE."
101 (if (riece-message-private-p message)
102 (if (riece-message-own-p message)
103 (riece-format-identity (riece-message-target message) t)
104 (riece-format-identity (riece-message-speaker message) t))
105 (concat (riece-format-identity (riece-message-target message) t) ":"
106 (riece-format-identity (riece-message-speaker message) t))))
108 (defun riece-message-buffer (message)
109 "Return the buffer where MESSAGE should appear."
110 (let ((target (if (riece-message-private-p message)
111 (if (riece-message-own-p message)
112 (riece-message-target message)
113 (riece-message-speaker message))
114 (riece-message-target message))))
115 (unless (riece-identity-member target riece-current-channels)
116 (riece-join-channel target)
117 ;; If you are not joined any channel,
118 ;; switch to the target immediately.
119 (unless riece-current-channel
120 (riece-switch-to-channel target)))
121 (riece-channel-buffer target)))
123 (defun riece-message-parent-buffers (message buffer)
124 "Return the parents of BUFFER where MESSAGE should appear.
125 Normally they are *Dialogue* and/or *Others*."
126 (if (and buffer (riece-frozen buffer)) ;the message might not be
127 ;visible in buffer's window
128 (list riece-dialogue-buffer riece-others-buffer)
129 (if (and riece-current-channel ;the message is not sent to
131 (if (riece-message-private-p message)
132 (if (riece-message-own-p message)
133 (not (riece-identity-equal
134 (riece-message-target message)
135 riece-current-channel))
136 (not (riece-identity-equal
137 (riece-message-speaker message)
138 riece-current-channel)))
139 (not (riece-identity-equal
140 (riece-message-target message)
141 riece-current-channel))))
142 (list riece-dialogue-buffer riece-others-buffer)
143 riece-dialogue-buffer)))
145 (defun riece-display-message-1 (message)
147 (funcall riece-message-make-open-bracket-function message))
149 (funcall riece-message-make-close-bracket-function message))
151 (funcall riece-message-make-name-function message))
153 (funcall riece-message-make-global-name-function message))
154 (buffer (riece-message-buffer message))
155 (server-name (riece-identity-server (riece-message-speaker message)))
158 (riece-message-own-p message)
159 (riece-own-frozen buffer))
160 (with-current-buffer buffer
161 (setq riece-freeze nil))
162 (riece-emit-signal 'buffer-freeze-changed buffer nil))
163 (setq parent-buffers (riece-message-parent-buffers message buffer))
165 (concat open-bracket name close-bracket
166 " " (riece-message-text message) "\n"))
167 (riece-insert parent-buffers
168 (if (equal server-name "")
169 (concat open-bracket global-name close-bracket
170 " " (riece-message-text message) "\n")
171 (concat open-bracket global-name close-bracket
172 " " (riece-message-text message)
173 " (from " server-name ")\n")))
174 (run-hook-with-args 'riece-after-display-message-functions message)))
176 (defun riece-display-message (message)
177 "Display MESSAGE object."
178 (let ((functions riece-message-filter-functions))
179 (setq message (copy-sequence message))
181 (setq message (funcall (car functions) message)
182 functions (cdr functions)))
184 (riece-display-message-1 message))))
186 (defun riece-make-message (speaker target text &optional type own-p)
187 "Make an instance of message object.
188 Arguments are appropriate to the sender, the receiver, and text
189 content, respectively.
190 Optional 4th argument TYPE specifies the type of the message.
191 Currently possible values are `action' and `notice'.
192 Optional 5th argument is the flag to indicate that this message is not
194 (vector speaker target text type own-p))
196 (defun riece-message-speaker (message)
197 "Return the sender of MESSAGE."
200 (defun riece-message-target (message)
201 "Return the receiver of MESSAGE."
204 (defun riece-message-text (message)
205 "Return the text part of MESSAGE."
208 (defun riece-message-type (message)
209 "Return the type of MESSAGE.
210 Currently possible values are `action' and `notice'."
213 (defun riece-message-own-p (message)
214 "Return t if MESSAGE is not from the network."
217 (defun riece-message-private-p (message)
218 "Return t if MESSAGE is a private message."
219 (not (or (riece-channel-p (riece-identity-prefix
220 (riece-message-speaker message)))
221 (riece-channel-p (riece-identity-prefix
222 (riece-message-target message))))))
224 (defun riece-message-external-p (message)
225 "Return t if MESSAGE is from outside the channel."
226 (not (riece-identity-member
227 (riece-message-speaker message)
228 (let ((target (riece-message-target message)))
229 (riece-with-server-buffer (riece-identity-server target)
232 (riece-make-identity (car user) riece-server-name))
233 (riece-channel-get-users (riece-identity-prefix target))))))))
235 (provide 'riece-message)
237 ;;; riece-message.el ends here