elmo/elmo-multi.el

   1 ;;; elmo-multi.el --- Multiple Folder Interface for ELMO.
   2
   3 ;; Copyright (C) 1998,1999,2000 Yuuichi Teranishi <teranisi@gohome.org>
   4
   5 ;; Author: Yuuichi Teranishi <teranisi@gohome.org>
   6 ;; Keywords: mail, net news
   7
   8 ;; This file is part of ELMO (Elisp Library for Message Orchestration).
   9
  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)
  13 ;; any later version.
  14 ;;
  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.
  19 ;;
  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.
  24 ;;
  25
  26 ;;; Commentary:
  27 ;;
  28
  29 ;;; Code:
  30 ;;
  31
  32 (require 'elmo)
  33 (require 'luna)
  34
  35 (defvar elmo-multi-divide-number 100000
  36   "*Multi divider number.")
  37
  38 ;;; ELMO Multi folder
  39 (eval-and-compile
  40   (luna-define-class elmo-multi-folder (elmo-folder)
  41                      (children divide-number))
  42   (luna-define-internal-accessors 'elmo-multi-folder))
  43
  44 (defmacro elmo-multi-real-folder-number (folder number)
  45   "Returns a cons cell of real FOLDER and NUMBER."
  46   (` (cons (nth (-
  47                  (/ (, number)
  48                     (elmo-multi-folder-divide-number-internal (, folder)))
  49                  1) (elmo-multi-folder-children-internal (, folder)))
  50            (% (, number) (elmo-multi-folder-divide-number-internal
  51                           (, folder))))))
  52
  53 (luna-define-method elmo-folder-initialize ((folder
  54                                              elmo-multi-folder)
  55                                             name)
  56   (while (> (length (car (setq name (elmo-parse-token name ",")))) 0)
  57     (elmo-multi-folder-set-children-internal
  58      folder
  59      (nconc (elmo-multi-folder-children-internal
  60              folder)
  61             (list (elmo-make-folder (car name)))))
  62     (setq name (cdr name))
  63     (when (and (> (length name) 0)
  64                (eq (aref name 0) ?,))
  65       (setq name (substring name 1))))
  66   (elmo-multi-folder-set-divide-number-internal
  67    folder
  68    elmo-multi-divide-number)
  69   folder)
  70
  71 (luna-define-method elmo-folder-open-internal ((folder elmo-multi-folder))
  72   (dolist (fld (elmo-multi-folder-children-internal folder))
  73     (elmo-folder-open-internal fld)))
  74
  75 (luna-define-method elmo-folder-check ((folder elmo-multi-folder))
  76   (dolist (fld (elmo-multi-folder-children-internal folder))
  77     (elmo-folder-check fld)))
  78
  79 (luna-define-method elmo-folder-close-internal ((folder elmo-multi-folder))
  80   (dolist (fld (elmo-multi-folder-children-internal folder))
  81     (elmo-folder-close-internal fld)))
  82
  83 (luna-define-method elmo-folder-close :after ((folder elmo-multi-folder))
  84   (dolist (fld (elmo-multi-folder-children-internal folder))
  85     (elmo-folder-set-msgdb-internal fld nil)))
  86
  87 (luna-define-method elmo-folder-synchronize ((folder elmo-multi-folder)
  88                                              &optional
  89                                              disable-killed
  90                                              ignore-msgdb
  91                                              no-check)
  92   (dolist (fld (elmo-multi-folder-children-internal folder))
  93     (elmo-folder-synchronize fld disable-killed ignore-msgdb no-check))
  94   0)
  95
  96 (luna-define-method elmo-folder-expand-msgdb-path ((folder
  97                                                     elmo-multi-folder))
  98   (expand-file-name (elmo-replace-string-as-filename
  99                      (elmo-folder-name-internal folder))
 100                     (expand-file-name "multi"
 101                                       elmo-msgdb-directory)))
 102
 103 (luna-define-method elmo-folder-newsgroups ((folder elmo-multi-folder))
 104   (delq nil
 105         (elmo-flatten
 106          (mapcar
 107           'elmo-folder-newsgroups
 108           (elmo-flatten
 109            (mapcar
 110             'elmo-folder-get-primitive-list
 111             (elmo-multi-folder-children-internal folder)))))))
 112
 113 (luna-define-method elmo-folder-get-primitive-list ((folder elmo-multi-folder))
 114   (elmo-flatten
 115    (mapcar
 116     'elmo-folder-get-primitive-list
 117     (elmo-multi-folder-children-internal folder))))
 118
 119 (luna-define-method elmo-folder-contains-type ((folder elmo-multi-folder) type)
 120   (let ((children (elmo-multi-folder-children-internal folder))
 121         match)
 122     (while children
 123       (when (elmo-folder-contains-type (car children) type)
 124         (setq match t)
 125         (setq children nil))
 126       (setq children (cdr children)))
 127     match))
 128
 129 (luna-define-method elmo-message-folder ((folder elmo-multi-folder)
 130                                          number)
 131   (nth (- (/ number (elmo-multi-folder-divide-number-internal folder)) 1)
 132        (elmo-multi-folder-children-internal folder)))
 133
 134 (luna-define-method elmo-message-set-cached ((folder elmo-multi-folder)
 135                                              number cached)
 136   (let ((pair (elmo-multi-real-folder-number folder number)))
 137     (elmo-message-set-cached (car pair) (cdr pair) cached)))
 138
 139 (luna-define-method elmo-find-fetch-strategy
 140   ((folder elmo-multi-folder) entity &optional ignore-cache)
 141   (let ((pair (elmo-multi-real-folder-number
 142                folder
 143                (elmo-message-entity-number entity))))
 144     (elmo-find-fetch-strategy
 145      (car pair)
 146      (elmo-message-entity (car pair) (cdr pair)) ignore-cache)))
 147
 148 (luna-define-method elmo-message-entity ((folder elmo-multi-folder) key)
 149   (cond
 150    ((numberp key)
 151     (let* ((pair (elmo-multi-real-folder-number folder key))
 152            (entity (elmo-message-entity (car pair) (cdr pair))))
 153       (when entity
 154         (elmo-message-entity-set-number (elmo-message-copy-entity entity)
 155                                         key))))
 156    ((stringp key)
 157     (let ((children (elmo-multi-folder-children-internal folder))
 158           (cur-number 0)
 159           match)
 160       (while children
 161         (setq cur-number (+ cur-number 1))
 162         (when (setq match (elmo-message-entity (car children) key))
 163           (setq match (elmo-message-copy-entity match))
 164           (elmo-message-entity-set-number
 165            match
 166            (+ (* (elmo-multi-folder-divide-number-internal folder)
 167                  cur-number)
 168               (elmo-message-entity-number match)))
 169           (setq children nil))
 170         (setq children (cdr children)))
 171       match))))
 172
 173 (luna-define-method elmo-message-field ((folder elmo-multi-folder)
 174                                         number field)
 175   (let ((pair (elmo-multi-real-folder-number folder number)))
 176     (elmo-message-field (car pair) (cdr pair) field)))
 177
 178 (luna-define-method elmo-message-mark ((folder elmo-multi-folder) number)
 179   (let ((pair (elmo-multi-real-folder-number folder number)))
 180     (elmo-message-mark (car pair) (cdr pair))))
 181
 182 (defun elmo-multi-split-numbers (folder numlist &optional as-is)
 183   (let ((numbers (sort numlist '<))
 184         (divider (elmo-multi-folder-divide-number-internal folder))
 185         (cur-number 0)
 186         one-list numbers-list)
 187     (while numbers
 188       (setq cur-number (+ cur-number 1))
 189       (setq one-list nil)
 190       (while (and numbers
 191                   (eq 0
 192                       (/ (- (car numbers)
 193                             (* divider cur-number))
 194                          divider)))
 195         (setq one-list (nconc
 196                         one-list
 197                         (list
 198                          (if as-is
 199                              (car numbers)
 200                            (% (car numbers)
 201                               (* divider cur-number))))))
 202         (setq numbers (cdr numbers)))
 203       (setq numbers-list (nconc numbers-list (list one-list))))
 204     numbers-list))
 205
 206 (luna-define-method elmo-folder-process-crosspost ((folder elmo-multi-folder))
 207   (dolist (child (elmo-multi-folder-children-internal folder))
 208     (elmo-folder-process-crosspost child)))
 209
 210 (luna-define-method elmo-message-fetch ((folder elmo-multi-folder)
 211                                         number strategy
 212                                         &optional section outbuf unseen)
 213   (let ((pair (elmo-multi-real-folder-number folder number)))
 214     (elmo-message-fetch (car pair) (cdr pair) strategy section outbuf unseen)))
 215
 216 (luna-define-method elmo-folder-delete-messages ((folder elmo-multi-folder)
 217                                                  numbers)
 218   (let ((flds (elmo-multi-folder-children-internal folder))
 219         one-list-list
 220         (cur-number 0))
 221     (setq one-list-list (elmo-multi-split-numbers folder numbers))
 222     (while (< cur-number (length flds))
 223       (elmo-folder-delete-messages (nth cur-number flds)
 224                                    (nth cur-number one-list-list))
 225       (setq cur-number (+ 1 cur-number)))
 226     t))
 227
 228 (luna-define-method elmo-folder-detach-messages ((folder elmo-multi-folder)
 229                                                  numbers)
 230   (let ((flds (elmo-multi-folder-children-internal folder))
 231         one-list-list
 232         (cur-number 0))
 233     (setq one-list-list (elmo-multi-split-numbers folder numbers))
 234     (while (< cur-number (length flds))
 235       (elmo-folder-detach-messages (nth cur-number flds)
 236                                    (nth cur-number one-list-list))
 237       (setq cur-number (+ 1 cur-number)))
 238     t))
 239
 240 (luna-define-method elmo-folder-diff ((folder elmo-multi-folder))
 241   (elmo-multi-folder-diff folder))
 242
 243 (defun elmo-multi-folder-diff (folder)
 244   (let ((flds (elmo-multi-folder-children-internal folder))
 245         (news 0)
 246         (unreads 0)
 247         (alls 0)
 248         no-unreads diff)
 249     (while flds
 250       (setq diff (elmo-folder-diff (car flds)))
 251       (cond
 252        ((consp (cdr diff)) ; (new unread all)
 253         (setq news    (+ news (nth 0 diff))
 254               unreads (+ unreads (nth 1 diff))
 255               alls    (+ alls (nth 2 diff))))
 256        (t
 257         (setq no-unreads t)
 258         (setq news    (+ news (car diff))
 259               alls    (+ alls (cdr diff)))))
 260       (setq flds (cdr flds)))
 261     (if no-unreads
 262         (cons news alls)
 263       (list news unreads alls))))
 264
 265 (luna-define-method elmo-folder-list-unreads ((folder elmo-multi-folder))
 266   (let ((cur-number 0)
 267         unreads)
 268     (dolist (child (elmo-multi-folder-children-internal folder))
 269       (setq cur-number (+ cur-number 1))
 270       (setq unreads
 271             (nconc
 272              unreads
 273              (mapcar (lambda (x)
 274                        (+ x (* cur-number
 275                                (elmo-multi-folder-divide-number-internal
 276                                 folder))))
 277                      (elmo-folder-list-unreads child)))))
 278     unreads))
 279
 280 (luna-define-method elmo-folder-list-answereds ((folder elmo-multi-folder))
 281   (let ((cur-number 0)
 282         answereds)
 283     (dolist (child (elmo-multi-folder-children-internal folder))
 284       (setq cur-number (+ cur-number 1))
 285       (setq answereds
 286             (nconc
 287              answereds
 288              (mapcar (lambda (x)
 289                        (+ x (* cur-number
 290                                (elmo-multi-folder-divide-number-internal
 291                                 folder))))
 292                      (elmo-folder-list-answereds child)))))
 293     answereds))
 294
 295 (luna-define-method elmo-folder-list-importants ((folder elmo-multi-folder))
 296   (let ((cur-number 0)
 297         importants)
 298     (dolist (child (elmo-multi-folder-children-internal folder))
 299       (setq cur-number (+ cur-number 1))
 300       (setq importants
 301             (nconc
 302              importants
 303              (mapcar (lambda (x)
 304                        (+ x (* cur-number
 305                                (elmo-multi-folder-divide-number-internal
 306                                 folder))))
 307                      (elmo-folder-list-importants child)))))
 308     (elmo-uniq-list
 309      (nconc importants
 310             (elmo-folder-list-messages-with-global-mark
 311              folder elmo-msgdb-important-mark)))))
 312
 313 (luna-define-method elmo-folder-list-messages
 314   ((folder elmo-multi-folder) &optional visible-only in-msgdb)
 315   (let* ((flds (elmo-multi-folder-children-internal folder))
 316          (cur-number 0)
 317          list numbers)
 318     (while flds
 319       (setq cur-number (+ cur-number 1))
 320       (setq list (elmo-folder-list-messages (car flds) visible-only in-msgdb))
 321       (setq numbers
 322             (nconc
 323              numbers
 324              (mapcar
 325               (function
 326                (lambda (x)
 327                  (+
 328                   (* (elmo-multi-folder-divide-number-internal
 329                       folder) cur-number) x)))
 330               list)))
 331       (setq flds (cdr flds)))
 332     numbers))
 333
 334 (luna-define-method elmo-folder-exists-p ((folder elmo-multi-folder))
 335   (let ((flds (elmo-multi-folder-children-internal folder)))
 336     (catch 'exists
 337       (while flds
 338         (unless (elmo-folder-exists-p (car flds))
 339           (throw 'exists nil))
 340         (setq flds (cdr flds)))
 341       t)))
 342
 343 (luna-define-method elmo-folder-creatable-p ((folder elmo-multi-folder))
 344   (let ((flds (elmo-multi-folder-children-internal folder)))
 345     (catch 'creatable
 346       (while flds
 347         (when (and (elmo-folder-creatable-p (car flds))
 348                    (not (elmo-folder-exists-p (car flds))))
 349           ;; If folder already exists, don't to `creatable'.
 350           ;; Because this function is called, when folder doesn't exists.
 351           (throw 'creatable t))
 352         (setq flds (cdr flds)))
 353       nil)))
 354
 355 (luna-define-method elmo-folder-create ((folder elmo-multi-folder))
 356   (let ((flds (elmo-multi-folder-children-internal folder)))
 357     (catch 'create
 358       (while flds
 359         (unless (or (elmo-folder-exists-p (car flds))
 360                     (elmo-folder-create (car flds)))
 361           (throw 'create nil))
 362         (setq flds (cdr flds)))
 363       t)))
 364
 365 (luna-define-method elmo-folder-search ((folder elmo-multi-folder)
 366                                         condition &optional numlist)
 367   (let* ((flds (elmo-multi-folder-children-internal folder))
 368          (cur-number 0)
 369          numlist-list cur-numlist ; for filtered search.
 370          ret-val)
 371     (if numlist
 372         (setq numlist-list
 373               (elmo-multi-split-numbers folder numlist t)))
 374     (while flds
 375       (setq cur-number (+ cur-number 1))
 376       (when numlist
 377         (setq cur-numlist (car numlist-list)))
 378       (setq ret-val (append
 379                      ret-val
 380                      (elmo-list-filter
 381                       cur-numlist
 382                       (mapcar
 383                        (function
 384                         (lambda (x)
 385                           (+
 386                            (* (elmo-multi-folder-divide-number-internal
 387                                folder) cur-number) x)))
 388                        (elmo-folder-search
 389                         (car flds) condition)))))
 390       (when numlist
 391         (setq numlist-list (cdr numlist-list)))
 392       (setq flds (cdr flds)))
 393     ret-val))
 394
 395 (luna-define-method elmo-message-use-cache-p ((folder elmo-multi-folder)
 396                                               number)
 397   (let ((pair (elmo-multi-real-folder-number folder number)))
 398     (elmo-message-use-cache-p (car pair) (cdr pair))))
 399
 400 (luna-define-method elmo-message-file-p ((folder elmo-multi-folder) number)
 401   (let ((pair (elmo-multi-real-folder-number folder number)))
 402     (elmo-message-file-p (car pair) (cdr pair))))
 403
 404 (luna-define-method elmo-message-file-name ((folder elmo-multi-folder) number)
 405   (let ((pair (elmo-multi-real-folder-number folder number)))
 406     (elmo-message-file-name (car pair) (cdr pair))))
 407
 408 (luna-define-method elmo-folder-plugged-p ((folder elmo-multi-folder))
 409   (let ((flds (elmo-multi-folder-children-internal folder)))
 410     (catch 'plugged
 411       (while flds
 412         (unless (elmo-folder-plugged-p (car flds))
 413           (throw 'plugged nil))
 414         (setq flds (cdr flds)))
 415       t)))
 416
 417 (luna-define-method elmo-folder-set-plugged ((folder elmo-multi-folder)
 418                                              plugged add)
 419   (let ((flds  (elmo-multi-folder-children-internal folder)))
 420     (dolist (fld flds)
 421       (elmo-folder-set-plugged fld plugged add))))
 422
 423 (defun elmo-multi-folder-numbers-list-assoc (folder folder-numbers)
 424   (let (ent)
 425     (while folder-numbers
 426       (when (string= (elmo-folder-name-internal (car (car folder-numbers)))
 427                      (elmo-folder-name-internal folder))
 428         (setq ent (car folder-numbers)
 429               folder-numbers nil))
 430       (setq folder-numbers (cdr folder-numbers)))
 431     ent))
 432
 433 (defun elmo-multi-make-folder-numbers-list (folder msgs)
 434   (let ((msg-list msgs)
 435         pair fld-list
 436         ret-val)
 437     (while msg-list
 438       (when (and (numberp (car msg-list))
 439                  (> (car msg-list) 0))
 440         (setq pair (elmo-multi-real-folder-number folder (car msg-list)))
 441         (if (setq fld-list (elmo-multi-folder-numbers-list-assoc
 442                             (car pair)
 443                             ret-val))
 444             (setcdr fld-list (cons (cdr pair) (cdr fld-list)))
 445           (setq ret-val (cons (cons (car pair) (list (cdr pair))) ret-val))))
 446       (setq msg-list (cdr msg-list)))
 447     ret-val))
 448
 449 (luna-define-method elmo-folder-mark-as-important ((folder
 450                                                     elmo-multi-folder)
 451                                                    numbers
 452                                                    &optional
 453                                                    ignore-flags)
 454   (dolist (folder-numbers (elmo-multi-make-folder-numbers-list folder numbers))
 455     (elmo-folder-mark-as-important (car folder-numbers)
 456                                    (cdr folder-numbers)
 457                                    ignore-flags)))
 458
 459 (luna-define-method elmo-folder-unmark-important ((folder
 460                                                    elmo-multi-folder)
 461                                                   numbers
 462                                                   &optional
 463                                                   ignore-flags)
 464   (dolist (folder-numbers (elmo-multi-make-folder-numbers-list folder numbers))
 465     (elmo-folder-unmark-important (car folder-numbers)
 466                                   (cdr folder-numbers)
 467                                   ignore-flags)))
 468
 469 (luna-define-method elmo-folder-mark-as-read ((folder
 470                                                elmo-multi-folder)
 471                                               numbers
 472                                               &optional ignore-flag)
 473   (dolist (folder-numbers (elmo-multi-make-folder-numbers-list folder numbers))
 474     (elmo-folder-mark-as-read (car folder-numbers)
 475                               (cdr folder-numbers)
 476                               ignore-flag)))
 477
 478 (luna-define-method elmo-folder-unmark-read ((folder
 479                                               elmo-multi-folder)
 480                                              numbers
 481                                              &optional ignore-flag)
 482   (dolist (folder-numbers (elmo-multi-make-folder-numbers-list folder numbers))
 483     (elmo-folder-unmark-read (car folder-numbers)
 484                              (cdr folder-numbers)
 485                              ignore-flag)))
 486
 487 (luna-define-method elmo-folder-mark-as-answered ((folder
 488                                                    elmo-multi-folder)
 489                                                   numbers)
 490   (dolist (folder-numbers (elmo-multi-make-folder-numbers-list folder numbers))
 491     (elmo-folder-mark-as-answered (car folder-numbers)
 492                                   (cdr folder-numbers))))
 493
 494 (luna-define-method elmo-folder-unmark-answered ((folder
 495                                                   elmo-multi-folder)
 496                                                  numbers)
 497   (dolist (folder-numbers (elmo-multi-make-folder-numbers-list folder numbers))
 498     (elmo-folder-unmark-answered (car folder-numbers)
 499                                  (cdr folder-numbers))))
 500
 501 (luna-define-method elmo-folder-list-flagged ((folder elmo-multi-folder)
 502                                               flag
 503                                               &optional in-msgdb)
 504   (let ((cur-number 0)
 505         numbers)
 506     (dolist (child (elmo-multi-folder-children-internal folder))
 507       (setq cur-number (+ cur-number 1)
 508             numbers
 509             (nconc
 510              numbers
 511              (mapcar
 512               (function
 513                (lambda (x)
 514                  (+
 515                   (* (elmo-multi-folder-divide-number-internal folder)
 516                      cur-number) x)))
 517               (elmo-folder-list-flagged child flag in-msgdb)))))
 518     numbers))
 519
 520 (luna-define-method elmo-folder-set-message-modified ((folder
 521                                                        elmo-multi-folder)
 522                                                       modified)
 523   (dolist (child (elmo-multi-folder-children-internal folder))
 524     (elmo-folder-set-message-modified child modified)))
 525
 526 (luna-define-method elmo-folder-commit ((folder elmo-multi-folder))
 527   (dolist (child (elmo-multi-folder-children-internal folder))
 528     (elmo-folder-commit child)))
 529
 530 (luna-define-method elmo-folder-length ((folder elmo-multi-folder))
 531   (let ((sum 0))
 532     (dolist (child (elmo-multi-folder-children-internal folder))
 533       (setq sum (+ sum (elmo-folder-length child))))
 534     sum))
 535
 536 (luna-define-method elmo-folder-count-flags ((folder elmo-multi-folder))
 537   (let ((new 0)
 538         (unreads 0)
 539         (answered 0)
 540         flags)
 541     (dolist (child (elmo-multi-folder-children-internal folder))
 542       (setq flags (elmo-folder-count-flags child))
 543       (setq new (+ new (nth 0 flags)))
 544       (setq unreads (+ unreads (nth 1 flags)))
 545       (setq answered (+ answered (nth 2 flags))))
 546     (list new unreads answered)))
 547
 548 (require 'product)
 549 (product-provide (provide 'elmo-multi) (require 'elmo-version))
 550
 551 ;;; elmo-multi.el ends here