Import Riece subtree

[packages] / xemacs-packages / riece / lisp / riece-guess.el

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+;;; riece-guess.el --- guess the next channel, using multiple methods -*- lexical-binding: t -*-
+;; Copyright (C) 1998-2003 Daiki Ueno
+
+;; Author: Daiki Ueno <ueno@unixuser.org>
+;; Keywords: IRC, riece
+
+;; This file is part of Riece.
+
+;; 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, 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 GNU Emacs; see the file COPYING.  If not, write to the
+;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+;; Boston, MA 02110-1301, USA.
+
+;;; Commentary:
+
+;; NOTE: This is an add-on module for Riece.
+
+;;; Code:
+
+(require 'riece-identity)
+(require 'riece-commands)
+
+(defgroup riece-guess nil
+  "Guess the next channel."
+  :tag "Guess"
+  :prefix "riece-"
+  :group 'riece)
+
+(defcustom riece-guess-channel-try-functions nil
+  "Functions which returns a list of channels the user wants to switch."
+  :type '(repeat function)
+  :group 'riece-guess)
+
+(defconst riece-guess-description
+  "Guess the next channel, using multiple methods.")
+
+(defvar riece-current-channels)
+
+(defun riece-guess-candidates ()
+  "Build candidate list.
+This function calls \\[riece-guess-channel-try-functions] in turn and
+merge the results."
+  (let ((functions riece-guess-channel-try-functions)
+       candidates)
+    (while functions
+      (setq candidates
+           (nconc candidates
+                  (delq nil (mapcar
+                             (lambda (channel)
+                               (unless (riece-identity-member
+                                        channel candidates)
+                                 channel))
+                             (funcall (car functions)))))
+           functions (cdr functions)))
+    ;; Merge the default.
+    (setq candidates
+         (nconc candidates
+                (delq nil (mapcar
+                           (lambda (channel)
+                             (if (and channel
+                                      (not (riece-identity-member
+                                            channel candidates)))
+                                 channel))
+                           riece-current-channels))))
+    candidates))
+
+(defvar riece-guess-candidates nil)
+
+(defun riece-command-guess-switch-to-channel ()
+  "Try to switch to the channel where the user is interested in."
+  (interactive)
+  (unless (and (eq last-command this-command)
+              riece-guess-candidates)
+    (setq riece-guess-candidates (riece-guess-candidates)))
+  (unless riece-guess-candidates
+    (error "No channel"))
+  (riece-command-switch-to-channel
+   (prog1 (car riece-guess-candidates)
+     (setq riece-guess-candidates (cdr riece-guess-candidates)))))
+
+(defvar riece-command-mode-map)
+(defvar riece-dialogue-mode-map)
+(defvar riece-channel-list-mode-map)
+
+(defun riece-guess-insinuate ()
+  )
+
+(defun riece-guess-enable ()
+  (define-key riece-command-mode-map
+    "\C-cg" 'riece-command-guess-switch-to-channel)
+  (define-key riece-dialogue-mode-map
+    "g" 'riece-command-guess-switch-to-channel)
+  (define-key riece-channel-list-mode-map
+    "g" 'riece-command-guess-switch-to-channel))
+
+(defun riece-guess-disable ()
+  (define-key riece-command-mode-map
+    "\C-cg" nil)
+  (define-key riece-dialogue-mode-map
+    "g" nil)
+  (define-key riece-channel-list-mode-map
+    "g" nil))
+
+(provide 'riece-guess)
+
+;;; riece-guess.el ends here