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-newsgroups ((folder elmo-filter-folder))
93 (elmo-folder-newsgroups (elmo-filter-folder-target-internal folder)))
95 (luna-define-method elmo-find-fetch-strategy
96 ((folder elmo-filter-folder) entity &optional ignore-cache)
97 (elmo-find-fetch-strategy
98 (elmo-filter-folder-target-internal folder)
101 (luna-define-method elmo-folder-get-primitive-list ((folder
103 (list (elmo-filter-folder-target-internal folder)))
105 (luna-define-method elmo-folder-contains-type ((folder elmo-filter-folder)
107 (elmo-folder-contains-type
108 (elmo-filter-folder-target-internal folder)
111 (luna-define-method elmo-folder-msgdb-create ((folder elmo-filter-folder)
113 (if (elmo-filter-folder-require-msgdb-internal folder)
114 (let* ((target-folder (elmo-filter-folder-target-internal folder))
115 (len (length numlist))
116 (msgdb (elmo-folder-msgdb target-folder))
117 (new-msgdb (elmo-make-msgdb))
119 (when (> len elmo-display-progress-threshold)
120 (elmo-progress-set 'elmo-folder-msgdb-create
121 len "Creating msgdb..."))
123 (dolist (number numlist)
124 (setq entity (elmo-msgdb-message-entity msgdb number))
126 (elmo-msgdb-append-entity new-msgdb entity
127 (elmo-msgdb-flags msgdb number)))
128 (elmo-progress-notify 'elmo-folder-msgdb-create))
129 (elmo-progress-clear 'elmo-folder-msgdb-create))
131 ;; Does not require msgdb.
132 (elmo-folder-msgdb-create
133 (elmo-filter-folder-target-internal folder)
134 numlist flag-table)))
136 (luna-define-method elmo-folder-append-buffer ((folder elmo-filter-folder)
137 &optional flag number)
138 (elmo-folder-append-buffer
139 (elmo-filter-folder-target-internal folder)
142 (luna-define-method elmo-message-fetch ((folder elmo-filter-folder)
144 &optional section outbuf unseen)
146 (elmo-filter-folder-target-internal folder)
147 number strategy section outbuf unseen))
149 (luna-define-method elmo-folder-delete-messages ((folder elmo-filter-folder)
151 (elmo-folder-delete-messages
152 (elmo-filter-folder-target-internal folder) numbers))
154 (luna-define-method elmo-folder-list-messages-internal
155 ((folder elmo-filter-folder) &optional nohide)
156 (let ((target (elmo-filter-folder-target-internal folder)))
157 (if (or (elmo-folder-plugged-p target)
158 (not (elmo-folder-persistent-p folder)))
159 ;; search target folder
162 (elmo-filter-folder-condition-internal folder))
166 (defsubst elmo-filter-folder-list-unreads (folder)
168 (elmo-folder-list-messages folder nil 'in-msgdb)
169 (elmo-folder-list-unreads
170 (elmo-filter-folder-target-internal folder))))
172 (luna-define-method elmo-folder-list-unreads :around ((folder
174 (if (elmo-filter-folder-require-msgdb-internal folder)
175 (elmo-filter-folder-list-unreads folder)
176 (luna-call-next-method)))
178 (defsubst elmo-filter-folder-list-importants (folder)
180 (elmo-folder-list-messages folder nil 'in-msgdb)
181 (elmo-folder-list-importants
182 (elmo-filter-folder-target-internal folder))))
184 (luna-define-method elmo-folder-list-importants :around ((folder
186 (if (elmo-filter-folder-require-msgdb-internal folder)
187 (elmo-filter-folder-list-importants folder)
188 (luna-call-next-method)))
190 (luna-define-method elmo-folder-list-subfolders ((folder elmo-filter-folder)
192 (let* ((target (elmo-filter-folder-target-internal folder))
193 (prefix (and (string-match
196 (elmo-folder-name-internal
199 (elmo-folder-name-internal folder))
200 (match-string 1 (elmo-folder-name-internal
202 (elmo-mapcar-list-of-list
203 (lambda (x) (concat prefix x))
204 (elmo-folder-list-subfolders target one-level))))
206 (luna-define-method elmo-folder-diff :around ((folder elmo-filter-folder))
207 (let ((condition (elmo-filter-folder-condition-internal folder))
209 (if (vectorp condition)
211 ((and (string= (elmo-filter-key condition) "flag")
212 (or (string= (elmo-filter-value condition) "any")
213 (string= (elmo-filter-value condition) "digest")
214 (string= (elmo-filter-value condition) "unread")))
215 (setq diff (elmo-folder-diff (elmo-filter-folder-target-internal
218 (cons (car diff) (car diff))
219 (cons (car diff) (nth 1 diff))))
220 ((string= "last" (elmo-filter-key condition))
221 (luna-call-next-method))
223 (cons nil (cdr (elmo-folder-diff (elmo-filter-folder-target-internal
225 (luna-call-next-method))))
227 (luna-define-method elmo-folder-status ((folder elmo-filter-folder))
229 (elmo-filter-folder-target-internal folder)))
231 (luna-define-method elmo-folder-exists-p ((folder elmo-filter-folder))
232 (elmo-folder-exists-p (elmo-filter-folder-target-internal folder)))
234 (luna-define-method elmo-folder-creatable-p ((folder elmo-filter-folder))
235 (elmo-folder-creatable-p (elmo-filter-folder-target-internal folder)))
237 (luna-define-method elmo-folder-writable-p ((folder elmo-filter-folder))
238 (elmo-folder-writable-p (elmo-filter-folder-target-internal folder)))
240 (luna-define-method elmo-folder-create ((folder elmo-filter-folder))
241 (elmo-folder-create (elmo-filter-folder-target-internal folder)))
243 (luna-define-method elmo-folder-search ((folder elmo-filter-folder)
244 condition &optional numbers)
245 ;; search from messages in this folder
248 (elmo-folder-search (elmo-filter-folder-target-internal folder)
250 (elmo-folder-list-messages folder))))
252 (luna-define-method elmo-message-use-cache-p ((folder elmo-filter-folder)
254 (elmo-message-use-cache-p (elmo-filter-folder-target-internal folder)
257 (luna-define-method elmo-folder-message-file-p ((folder elmo-filter-folder))
258 (elmo-folder-message-file-p (elmo-filter-folder-target-internal folder)))
260 (luna-define-method elmo-folder-plugged-p ((folder elmo-filter-folder))
261 (elmo-folder-plugged-p (elmo-filter-folder-target-internal folder)))
263 (luna-define-method elmo-folder-set-plugged ((folder elmo-filter-folder)
264 plugged &optional add)
265 (elmo-folder-set-plugged (elmo-filter-folder-target-internal folder)
268 (luna-define-method elmo-message-file-name ((folder elmo-filter-folder)
270 (elmo-message-file-name (elmo-filter-folder-target-internal folder)
273 (luna-define-method elmo-folder-flag-as-read :around ((folder
277 (elmo-folder-flag-as-read (elmo-filter-folder-target-internal folder)
279 (luna-call-next-method))
281 (luna-define-method elmo-folder-unflag-read :around ((folder
285 (elmo-folder-unflag-read (elmo-filter-folder-target-internal folder)
287 (luna-call-next-method))
289 (luna-define-method elmo-folder-flag-as-important :around ((folder
294 (elmo-folder-flag-as-important (elmo-filter-folder-target-internal folder)
296 (luna-call-next-method))
298 (luna-define-method elmo-folder-unflag-important :around ((folder
303 (elmo-folder-unflag-important (elmo-filter-folder-target-internal folder)
305 (luna-call-next-method))
307 (luna-define-method elmo-folder-flag-as-answered :around ((folder
312 (elmo-folder-flag-as-answered (elmo-filter-folder-target-internal folder)
314 (luna-call-next-method))
317 (luna-define-method elmo-folder-unflag-answered :around ((folder
322 (elmo-folder-unflag-answered (elmo-filter-folder-target-internal folder)
324 (luna-call-next-method))
327 (product-provide (provide 'elmo-filter) (require 'elmo-version))
329 ;;; elmo-filter.el ends here