1 ;;; elmo-filter.el --- Filtered Folder Interface for ELMO.
3 ;; Copyright (C) 1998,1999,2000 Yuuichi Teranishi <teranisi@gohome.org>
5 ;; Author: Yuuichi Teranishi <teranisi@gohome.org>
6 ;; Keywords: mail, net news
8 ;; This file is part of ELMO (Elisp Library for Message Orchestration).
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)
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.
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., 59 Temple Place - Suite 330,
23 ;; Boston, MA 02111-1307, USA.
33 ;;; ELMO filter folder
35 (luna-define-class elmo-filter-folder (elmo-folder)
36 (condition target require-msgdb))
37 (luna-define-internal-accessors 'elmo-filter-folder))
39 (luna-define-method elmo-folder-initialize ((folder elmo-filter-folder)
42 (setq pair (elmo-parse-search-condition name))
43 (elmo-filter-folder-set-condition-internal folder
45 (if (string-match "^ */\\(.*\\)$" (cdr pair))
46 (elmo-filter-folder-set-target-internal
48 (elmo-make-folder (elmo-match-string 1 (cdr pair))))
49 (error "Folder syntax error `%s'" (elmo-folder-name-internal folder)))
50 (elmo-filter-folder-set-require-msgdb-internal
52 (elmo-folder-search-requires-msgdb-p
53 (elmo-filter-folder-target-internal folder)
54 (elmo-filter-folder-condition-internal folder)))
57 (luna-define-method elmo-folder-open-internal ((folder elmo-filter-folder))
58 (elmo-folder-open-internal (elmo-filter-folder-target-internal folder)))
60 (luna-define-method elmo-folder-msgdb :around ((folder elmo-filter-folder))
61 ;; Load target's msgdb if required.
62 (if (elmo-filter-folder-require-msgdb-internal folder)
63 (elmo-folder-msgdb (elmo-filter-folder-target-internal folder)))
64 ;; Load msgdb of itself.
65 (luna-call-next-method))
67 (luna-define-method elmo-folder-check ((folder elmo-filter-folder))
68 (if (elmo-filter-folder-require-msgdb-internal folder)
69 (elmo-folder-synchronize (elmo-filter-folder-target-internal folder))))
71 (luna-define-method elmo-folder-close-internal ((folder elmo-filter-folder))
72 (elmo-folder-close-internal (elmo-filter-folder-target-internal folder)))
74 (luna-define-method elmo-folder-close :after ((folder elmo-filter-folder))
75 ;; Clear target msgdb if it is used.
76 (if (elmo-filter-folder-require-msgdb-internal folder)
77 (elmo-folder-set-msgdb-internal (elmo-filter-folder-target-internal
80 (luna-define-method elmo-folder-commit :around ((folder elmo-filter-folder))
81 ;; Save target msgdb if it is used.
82 (if (elmo-filter-folder-require-msgdb-internal folder)
83 (elmo-folder-commit (elmo-filter-folder-target-internal folder)))
84 (luna-call-next-method))
86 (luna-define-method elmo-folder-expand-msgdb-path ((folder
89 (elmo-replace-string-as-filename (elmo-folder-name-internal folder))
90 (expand-file-name "filter" elmo-msgdb-directory)))
92 (luna-define-method elmo-folder-search-requires-msgdb-p ((folder
95 (elmo-folder-search-requires-msgdb-p
96 (elmo-filter-folder-target-internal folder) condition))
98 (luna-define-method elmo-folder-newsgroups ((folder elmo-filter-folder))
99 (elmo-folder-newsgroups (elmo-filter-folder-target-internal folder)))
101 (luna-define-method elmo-find-fetch-strategy
102 ((folder elmo-filter-folder) entity &optional ignore-cache)
103 (elmo-find-fetch-strategy
104 (elmo-filter-folder-target-internal folder)
105 entity ignore-cache))
107 (luna-define-method elmo-folder-get-primitive-list ((folder
109 (elmo-folder-get-primitive-list (elmo-filter-folder-target-internal folder)))
111 (luna-define-method elmo-folder-contains-type ((folder elmo-filter-folder)
113 (elmo-folder-contains-type
114 (elmo-filter-folder-target-internal folder)
117 (luna-define-method elmo-folder-msgdb-create ((folder elmo-filter-folder)
119 (if (elmo-filter-folder-require-msgdb-internal folder)
120 (let* ((target-folder (elmo-filter-folder-target-internal folder))
121 (len (length numlist))
122 (new-msgdb (elmo-make-msgdb))
124 (elmo-folder-check target-folder)
125 (when (> len elmo-display-progress-threshold)
126 (elmo-progress-set 'elmo-folder-msgdb-create
127 len "Creating msgdb..."))
129 (dolist (number numlist)
130 (setq entity (elmo-message-entity target-folder number))
132 (elmo-msgdb-append-entity
134 (elmo-message-flags target-folder number)))
135 (elmo-progress-notify 'elmo-folder-msgdb-create))
136 (elmo-progress-clear 'elmo-folder-msgdb-create))
138 ;; Does not require msgdb.
139 (elmo-folder-msgdb-create
140 (elmo-filter-folder-target-internal folder)
141 numlist flag-table)))
143 (luna-define-method elmo-folder-append-buffer ((folder elmo-filter-folder)
144 &optional flag number)
145 (elmo-folder-append-buffer
146 (elmo-filter-folder-target-internal folder)
149 (luna-define-method elmo-message-fetch ((folder elmo-filter-folder)
151 &optional section outbuf unseen)
153 (elmo-filter-folder-target-internal folder)
154 number strategy section outbuf unseen))
156 (luna-define-method elmo-folder-delete-messages ((folder elmo-filter-folder)
158 (elmo-folder-delete-messages
159 (elmo-filter-folder-target-internal folder) numbers))
161 (luna-define-method elmo-folder-list-messages-internal
162 ((folder elmo-filter-folder) &optional nohide)
163 (let ((target (elmo-filter-folder-target-internal folder)))
164 (if (or (elmo-folder-plugged-p target)
165 (not (elmo-folder-persistent-p folder)))
166 ;; search target folder
169 (elmo-filter-folder-condition-internal folder))
173 (luna-define-method elmo-folder-list-subfolders ((folder elmo-filter-folder)
175 (let* ((target (elmo-filter-folder-target-internal folder))
176 (prefix (and (string-match
179 (elmo-folder-name-internal
182 (elmo-folder-name-internal folder))
183 (match-string 1 (elmo-folder-name-internal
185 (elmo-mapcar-list-of-list
186 (lambda (x) (concat prefix x))
187 (elmo-folder-list-subfolders target one-level))))
189 (luna-define-method elmo-folder-diff :around ((folder elmo-filter-folder))
190 (let ((condition (elmo-filter-folder-condition-internal folder))
192 (if (vectorp condition)
194 ((and (string= (elmo-filter-key condition) "flag")
195 (or (string= (elmo-filter-value condition) "any")
196 (string= (elmo-filter-value condition) "digest")
197 (string= (elmo-filter-value condition) "unread")))
198 (setq diff (elmo-folder-diff (elmo-filter-folder-target-internal
200 (if (consp (cdr diff))
202 (list (car diff) (nth 1 diff) (nth 1 diff))
203 (cons (car diff) (car diff))))
204 ((string= "last" (elmo-filter-key condition))
205 (luna-call-next-method))
207 (cons nil (cdr (elmo-folder-diff (elmo-filter-folder-target-internal
209 (luna-call-next-method))))
211 (luna-define-method elmo-folder-status ((folder elmo-filter-folder))
213 (elmo-filter-folder-target-internal folder)))
215 (luna-define-method elmo-folder-exists-p ((folder elmo-filter-folder))
216 (elmo-folder-exists-p (elmo-filter-folder-target-internal folder)))
218 (luna-define-method elmo-folder-creatable-p ((folder elmo-filter-folder))
219 (elmo-folder-creatable-p (elmo-filter-folder-target-internal folder)))
221 (luna-define-method elmo-folder-writable-p ((folder elmo-filter-folder))
222 (elmo-folder-writable-p (elmo-filter-folder-target-internal folder)))
224 (luna-define-method elmo-folder-create ((folder elmo-filter-folder))
225 (elmo-folder-create (elmo-filter-folder-target-internal folder)))
227 (luna-define-method elmo-folder-search ((folder elmo-filter-folder)
228 condition &optional numbers)
229 ;; search from messages in this folder
230 (let ((result (elmo-folder-search
231 (elmo-filter-folder-target-internal folder)
233 (elmo-folder-list-messages folder))))
235 (elmo-list-filter numbers result)
238 (luna-define-method elmo-message-use-cache-p ((folder elmo-filter-folder)
240 (elmo-message-use-cache-p (elmo-filter-folder-target-internal folder)
243 (luna-define-method elmo-folder-message-file-p ((folder elmo-filter-folder))
244 (elmo-folder-message-file-p (elmo-filter-folder-target-internal folder)))
246 (luna-define-method elmo-folder-plugged-p ((folder elmo-filter-folder))
247 (elmo-folder-plugged-p (elmo-filter-folder-target-internal folder)))
249 (luna-define-method elmo-folder-set-plugged ((folder elmo-filter-folder)
250 plugged &optional add)
251 (elmo-folder-set-plugged (elmo-filter-folder-target-internal folder)
254 (luna-define-method elmo-message-file-name ((folder elmo-filter-folder)
256 (elmo-message-file-name (elmo-filter-folder-target-internal folder)
259 (luna-define-method elmo-folder-set-flag :before ((folder elmo-filter-folder)
263 (elmo-folder-set-flag (elmo-filter-folder-target-internal folder)
264 numbers flag is-local))
266 (luna-define-method elmo-folder-unset-flag :before ((folder elmo-filter-folder)
270 (elmo-folder-unset-flag (elmo-filter-folder-target-internal folder)
271 numbers flag is-local))
274 (product-provide (provide 'elmo-filter) (require 'elmo-version))
276 ;;; elmo-filter.el ends here