1 ;;; riece-history.el --- channel history management add-on
2 ;; Copyright (C) 1998-2003 Daiki Ueno
4 ;; Author: Daiki Ueno <ueno@unixuser.org>
5 ;; Keywords: IRC, riece
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 ;; You can check recently visited channels via `C-c g' in the commands
27 ;; buffer, by adding the following lines to ~/.riece/init.el:
29 ;; (add-hook 'riece-guess-channel-try-functions
30 ;; 'riece-guess-channel-from-history)
34 (require 'riece-options)
35 (require 'riece-globals)
36 (require 'riece-highlight)
37 (require 'riece-identity)
40 (defgroup riece-history nil
46 (defcustom riece-channel-history-length 3
47 "Length of riece-channel-history."
49 :group 'riece-history)
51 (defface riece-channel-list-history-face
54 (:foreground "PaleTurquoise"))
57 (:foreground "SeaGreen3"))
60 "Face used for displaying history channels."
61 :group 'riece-highlight-faces)
62 (defvar riece-channel-list-history-face 'riece-channel-list-history-face)
64 (defvar riece-channel-history nil)
66 (defvar riece-history-enabled nil)
68 (defconst riece-history-description
69 "Keep track channel history")
71 (defun riece-guess-channel-from-history ()
72 (let ((length (ring-length riece-channel-history))
75 (while (< index length)
76 (setq result (cons (ring-ref riece-channel-history index) result)
80 (defun riece-history-format-identity-for-channel-list-buffer (index identity)
81 (if (and riece-history-enabled
82 (not (ring-empty-p riece-channel-history))
83 (riece-identity-equal identity (ring-ref riece-channel-history 0)))
84 (concat (format "%2d:+" index)
85 (riece-format-identity identity))))
87 (defun riece-history-format-identity-for-channel-list-indicator (index
89 (if (and riece-history-enabled
90 (not (ring-empty-p riece-channel-history))
91 (riece-identity-equal identity (ring-ref riece-channel-history 0)))
92 (let ((string (riece-format-identity identity))
95 (while (string-match "%" string start)
96 (setq start (1+ (match-end 0))
97 string (replace-match "%%" nil nil string)))
98 (list (format "%d:" index)
99 (riece-propertize-modeline-string
100 string 'face 'riece-channel-list-history-face)))))
102 ;;; (defun riece-history-requires ()
103 ;;; (if (memq 'riece-guess riece-addons)
106 (defun riece-history-insinuate ()
107 (add-hook 'riece-after-switch-to-channel-functions
109 (if (and riece-history-enabled last
110 (not (riece-identity-equal last riece-current-channel)))
111 (ring-insert riece-channel-history last))))
112 (add-hook 'riece-format-identity-for-channel-list-buffer-functions
113 'riece-history-format-identity-for-channel-list-buffer)
114 (add-hook 'riece-format-identity-for-channel-list-indicator-functions
115 'riece-history-format-identity-for-channel-list-indicator)
116 (if (memq 'riece-highlight riece-addons)
117 (setq riece-channel-list-mark-face-alist
118 (cons '(?+ . riece-channel-list-history-face)
119 riece-channel-list-mark-face-alist)))
120 ;;; (if (memq 'riece-guess riece-addons)
121 ;;; (add-hook 'riece-guess-channel-try-functions
122 ;;; 'riece-guess-channel-from-history))
125 (defun riece-history-enable ()
126 (setq riece-channel-history
127 (make-ring riece-channel-history-length))
128 (setq riece-history-enabled t)
129 (riece-emit-signal 'channel-list-changed))
131 (defun riece-history-disable ()
132 (setq riece-channel-history nil
133 riece-history-enabled nil)
134 (riece-emit-signal 'channel-list-changed))
136 (provide 'riece-history)
138 ;;; riece-history.el ends here