1 ;;; wl-message.el --- Message displaying modules for Wanderlust.
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 Wanderlust (Yet Another Message Interface on Emacsen).
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 (require 'wl-highlight)
41 (defalias-maybe 'event-window 'ignore)
42 (defalias-maybe 'posn-window 'ignore)
43 (defalias-maybe 'event-start 'ignore)
44 (defalias-maybe 'mime-open-entity 'ignore)
45 (defalias-maybe 'itimer-function 'ignore)
46 (defalias-maybe 'delete-itimer 'ignore)
47 (defvar-maybe itimer-list))
49 (defvar wl-message-buffer-prefetch-get-next-function
50 'wl-summary-default-get-next-msg)
52 (defvar wl-message-buffer-prefetch-debug nil)
53 (defvar wl-message-buffer-prefetch-timer nil)
55 (defvar wl-message-buffer nil) ; message buffer.
57 (defvar wl-message-buffer-cur-folder nil)
58 (defvar wl-message-buffer-cur-number nil)
59 (defvar wl-message-buffer-cur-display-type nil)
60 (defvar wl-message-buffer-cur-summary-buffer nil)
61 (defvar wl-message-buffer-require-all-header nil)
62 (defvar wl-message-buffer-original-buffer nil) ; original buffer.
63 (defvar wl-message-buffer-mode-line-formatter nil)
64 (defvar wl-message-buffer-flag-indicator nil)
66 (make-variable-buffer-local 'wl-message-buffer-cur-folder)
67 (make-variable-buffer-local 'wl-message-buffer-cur-number)
68 (make-variable-buffer-local 'wl-message-buffer-cur-display-type)
69 (make-variable-buffer-local 'wl-message-buffer-cur-summary-buffer)
70 (make-variable-buffer-local 'wl-message-buffer-require-all-header)
71 (make-variable-buffer-local 'wl-message-buffer-original-buffer)
72 (make-variable-buffer-local 'wl-message-buffer-mode-line-formatter)
73 (make-variable-buffer-local 'wl-message-buffer-flag-indicator)
75 (defvar wl-fixed-window-configuration nil)
77 (defvar wl-message-buffer-cache-size 10) ; At least 1.
79 ;;; Message buffer cache.
81 (defvar wl-message-buffer-cache nil
82 "Message cache. (old ... new) order alist.
83 With association ((\"folder\" message \"message-id\") . cache-buffer).")
85 (defmacro wl-message-buffer-cache-buffer-get (entry)
88 (defmacro wl-message-buffer-cache-folder-get (entry)
89 (` (car (car (, entry)))))
91 (defmacro wl-message-buffer-cache-message-get (entry)
92 (` (cdr (car (, entry)))))
94 (defmacro wl-message-buffer-cache-entry-make (key buf)
95 (` (cons (, key) (, buf))))
97 (defmacro wl-message-buffer-cache-hit (key)
98 "Return value assosiated with key."
99 (` (wl-message-buffer-cache-buffer-get
100 (assoc (, key) wl-message-buffer-cache))))
102 (defun wl-message-buffer-cache-sort (entry)
103 "Move ENTRY to the top of `wl-message-buffer-cache'."
104 (setq wl-message-buffer-cache
105 (cons entry (delete entry wl-message-buffer-cache))))
106 ; (let* ((pointer (cons nil wl-message-buffer-cache))
108 ; (while (cdr pointer)
109 ; (if (equal (car (cdr pointer)) entry)
110 ; (setcdr pointer (cdr (cdr pointer)))
111 ; (setq pointer (cdr pointer))))
112 ; (setcdr pointer (list entry))
113 ; (setq wl-message-buffer-cache (cdr top))))
115 (defconst wl-original-message-buffer-name " *Original*")
117 (defun wl-original-message-mode ()
118 "A major mode for original message buffer."
119 (setq major-mode 'wl-original-message-mode)
120 (setq buffer-read-only t)
121 (set-buffer-multibyte nil)
122 (setq mode-name "Wanderlust original message"))
124 (defun wl-original-message-buffer-get (name)
125 "Get original message buffer for NAME.
126 If original message buffer already exists, it is re-used."
127 (let* ((name (concat wl-original-message-buffer-name name))
128 (buffer (get-buffer name)))
129 (unless (and buffer (buffer-live-p buffer))
130 (with-current-buffer (setq buffer (get-buffer-create name))
131 (wl-original-message-mode)))
134 (defun wl-message-buffer-create ()
135 "Create a new message buffer."
136 (let* ((buffer (generate-new-buffer wl-message-buffer-name))
137 (name (buffer-name buffer)))
138 (with-current-buffer buffer
139 (setq wl-message-buffer-original-buffer
140 (wl-original-message-buffer-get name))
141 (when wl-message-use-header-narrowing
142 (wl-message-header-narrowing-setup))
143 (run-hooks 'wl-message-buffer-created-hook))
146 (defun wl-message-buffer-cache-add (key)
147 "Add (KEY . buf) to the top of `wl-message-buffer-cache'.
148 Return its cache buffer."
149 (let ((len (length wl-message-buffer-cache))
151 (if (< len wl-message-buffer-cache-size)
152 (setq buf (wl-message-buffer-create))
153 (let ((entry (nth (1- len) wl-message-buffer-cache)))
155 (setq buf (wl-message-buffer-cache-buffer-get entry)))
156 (setcdr (nthcdr (- len 2) wl-message-buffer-cache) nil)
157 (setq wl-message-buffer-cache (delq entry wl-message-buffer-cache))
158 (setq buf (wl-message-buffer-create)))))
159 (setq wl-message-buffer-cache
160 (cons (wl-message-buffer-cache-entry-make key buf)
161 wl-message-buffer-cache))
164 (defun wl-message-buffer-cache-delete (&optional key)
165 "Delete the most recent cache entry"
167 (setq wl-message-buffer-cache
168 (delq (assoc key wl-message-buffer-cache)
169 wl-message-buffer-cache))
170 (let ((buf (wl-message-buffer-cache-buffer-get
171 (car wl-message-buffer-cache))))
172 (setq wl-message-buffer-cache
173 (nconc (cdr wl-message-buffer-cache)
174 (list (wl-message-buffer-cache-entry-make nil buf)))))))
176 (defun wl-message-buffer-cache-clean-up ()
177 "A function to flush all decoded messages in cache list."
179 (if (and (eq major-mode 'wl-summary-mode)
181 (get-buffer-window wl-message-buffer))
182 (delete-window (get-buffer-window wl-message-buffer)))
183 (wl-kill-buffers (regexp-quote wl-message-buffer-name))
184 (setq wl-message-buffer-cache nil))
186 ;;; Message buffer handling from summary buffer.
188 (defun wl-message-buffer-window ()
189 "Get message buffer window if any."
190 (let* ((start-win (selected-window))
194 (setq cur-win (next-window cur-win))
195 (with-current-buffer (window-buffer cur-win)
196 (if (or (eq major-mode 'wl-message-mode)
197 (eq major-mode 'mime-view-mode))
198 (throw 'found cur-win)))
199 (not (eq cur-win start-win)))))))
201 (defun wl-message-select-buffer (buffer)
202 "Select BUFFER as a message buffer."
203 (let ((window (get-buffer-window buffer))
204 (sum (car wl-message-window-size))
205 (mes (cdr wl-message-window-size))
208 (not (eq (save-excursion (set-buffer (window-buffer window))
209 wl-message-buffer-cur-summary-buffer)
211 (delete-window window)
212 (run-hooks 'wl-message-window-deleted-hook)
215 (select-window window)
216 (when wl-fixed-window-configuration
217 (delete-other-windows)
218 (and wl-stay-folder-window
219 (wl-summary-toggle-disp-folder)))
220 ;; There's no buffer window. Search for message window and snatch it.
221 (if (setq window (wl-message-buffer-window))
222 (select-window window)
223 (setq whi (1- (window-height)))
226 (let ((total (+ sum mes)))
227 (setq sum (max window-min-height (/ (* whi sum) total)))
228 (setq mes (max window-min-height (/ (* whi mes) total))))
229 (if (< whi (+ sum mes))
230 (enlarge-window (- (+ sum mes) whi)))))
231 (split-window (get-buffer-window (current-buffer)) sum)
233 (switch-to-buffer buffer)))
235 (defun wl-message-narrow-to-page (&optional arg)
237 If ARG is specified, narrow to ARGth page."
239 (setq arg (if arg (prefix-numeric-value arg) 0))
242 (forward-page -1) ; Beginning of current page.
244 (goto-char (point-min))))
245 (forward-char 1) ; for compatibility with emacs-19.28 and emacs-19.29
248 ((> arg 0) (forward-page arg))
249 ((< arg 0) (forward-page (1- arg))))
252 (narrow-to-region (point)
255 (if (and (eolp) (not (bobp)))
259 (defun wl-message-prev-page (&optional lines)
260 "Scroll down current message by LINES.
261 Returns non-nil if top of message."
264 (save-selected-window
265 (unless (eq major-mode 'mime-view-mode)
266 (when (buffer-live-p wl-message-buffer)
267 (wl-message-select-buffer wl-message-buffer)))
268 (move-to-window-line 0)
269 (if (and wl-break-pages
271 (not (setq real-top (save-restriction (widen) (bobp)))))
273 (wl-message-narrow-to-page -1)
274 (goto-char (point-max))
278 (scroll-down (or lines wl-message-scroll-amount))
282 (let ((f (assq (mime-preview-original-major-mode)
283 mime-preview-over-to-previous-method-alist)))
284 (if f (funcall (cdr f))))))
287 (defun wl-message-next-page (&optional lines)
288 "Scroll up current message by LINES.
289 Returns non-nil if bottom of message."
292 (save-selected-window
293 (unless (eq major-mode 'mime-view-mode)
294 (when (buffer-live-p wl-message-buffer)
295 (wl-message-select-buffer wl-message-buffer)))
296 (move-to-window-line -1)
299 (and (pos-visible-in-window-p)
301 (if (or (null wl-break-pages)
304 (widen) (forward-line) (eobp))))
306 (wl-message-narrow-to-page 1)
309 (static-if (boundp 'window-pixel-scroll-increment)
310 ;; XEmacs 21.2.20 and later.
311 (let (window-pixel-scroll-increment)
312 (scroll-up (or lines wl-message-scroll-amount)))
313 (scroll-up (or lines wl-message-scroll-amount)))
315 (goto-char (point-max))))
318 (let ((f (assq (mime-preview-original-major-mode)
319 mime-preview-over-to-next-method-alist)))
320 (if f (funcall (cdr f))))))
324 (defun wl-message-follow-current-entity (buffer)
325 "Follow to current message."
326 (wl-draft-reply (wl-message-get-original-buffer)
327 nil wl-message-buffer-cur-summary-buffer) ; reply to all
328 (let ((mail-reply-buffer buffer))
329 (wl-draft-yank-from-mail-reply-buffer nil)))
333 (defun wl-message-mode ()
334 "A major mode for message displaying."
336 (setq major-mode 'wl-message-mode)
337 (setq buffer-read-only t)
338 (setq mode-name "Message"))
340 (defun wl-message-exit ()
341 "Move to summary buffer or mother buffer."
343 (let (summary-buf summary-win mother-buffer)
344 (cond ((setq summary-buf wl-message-buffer-cur-summary-buffer)
345 (if (setq summary-win (get-buffer-window summary-buf))
346 (select-window summary-win)
347 (switch-to-buffer summary-buf)
348 (wl-message-select-buffer wl-message-buffer)
349 (select-window (get-buffer-window summary-buf))))
350 ((setq mother-buffer mime-mother-buffer)
351 (kill-buffer (current-buffer))
352 (switch-to-buffer mother-buffer)))
353 (run-hooks 'wl-message-exit-hook)))
355 (defun wl-message-toggle-disp-summary ()
357 (let ((summary-buf (get-buffer wl-message-buffer-cur-summary-buffer))
360 (buffer-live-p summary-buf))
361 (if (setq summary-win (get-buffer-window summary-buf))
362 (delete-window summary-win)
363 (switch-to-buffer summary-buf)
364 (wl-message-select-buffer wl-message-buffer))
365 (wl-summary-goto-folder-subr wl-message-buffer-cur-folder 'no-sync
368 (let ((sum-buf (current-buffer)))
369 (wl-message-select-buffer wl-message-buffer)
370 (setq wl-message-buffer-cur-summary-buffer sum-buf)))))
372 (defun wl-message-get-original-buffer ()
373 "Get original buffer for current message buffer."
374 (if (buffer-live-p wl-message-buffer-original-buffer)
375 wl-message-buffer-original-buffer
376 (wl-original-message-buffer-get (buffer-name (current-buffer)))))
378 (defun wl-message-add-buttons-to-body (start end)
381 (narrow-to-region start end)
382 (let ((case-fold-search t)
383 (alist wl-message-body-button-alist)
386 (setq entry (car alist)
388 (goto-char (point-min))
389 (while (re-search-forward (car entry) (+ (point) (nth 4 entry)) t)
390 (unless (get-text-property (point) 'keymap)
391 (wl-message-add-button
392 (match-beginning (nth 1 entry))
393 (match-end (nth 1 entry))
395 (match-string (nth 3 entry))))))))))
397 (defun wl-message-add-buttons-to-header (start end)
400 (narrow-to-region start end)
401 (let ((case-fold-search t)
402 (alist wl-message-header-button-alist)
405 (setq entry (car alist)
407 (goto-char (point-min))
408 (while (re-search-forward (car entry) nil t)
409 (setq start (match-beginning 0)
410 end (if (re-search-forward "^[^ \t]" nil t)
414 (while (re-search-forward (nth 1 entry) end t)
415 (wl-message-add-button
416 (match-beginning (nth 2 entry))
417 (match-end (nth 2 entry))
418 (nth 3 entry) (match-string (nth 4 entry))))
419 (goto-char end)))))))
421 (defun wl-message-redisplay (folder number as-is all-header
422 &optional force-reload)
423 (let* ((default-mime-charset wl-mime-charset)
424 (buffer-read-only nil)
425 (summary-buf (current-buffer))
429 summary-win delim flags)
430 (setq buffer-read-only nil)
431 (setq cache-used (wl-message-buffer-display
432 folder number as-is all-header force-reload))
433 (setq wl-message-buffer (car cache-used))
434 (setq message-buf wl-message-buffer)
435 (wl-message-select-buffer wl-message-buffer)
437 (set-buffer message-buf)
438 (wl-deactivate-region)
439 (make-local-variable 'truncate-partial-width-windows)
440 (setq truncate-partial-width-windows nil)
441 (setq truncate-lines wl-message-truncate-lines)
442 (setq buffer-read-only nil)
443 (setq wl-message-buffer-cur-summary-buffer summary-buf)
444 (setq wl-message-buffer-cur-folder (elmo-folder-name-internal folder))
445 (setq wl-message-buffer-cur-number number)
446 (setq wl-message-buffer-flag-indicator
447 (if (setq flags (elmo-get-global-flags (elmo-message-flags
449 (let ((fl wl-summary-flag-alist)
450 flag-strings flag-string face)
452 (when (memq (car (car fl)) flags)
453 (setq flag-string (capitalize
454 (symbol-name (car (car fl))))
455 flags (delq (car (car fl)) flags))
456 (when (facep (setq face
459 "wl-highlight-summary-%s-flag-face"
461 (put-text-property 0 (length flag-string)
462 'face face flag-string))
463 (setq flag-strings (nconc flag-strings
464 (list flag-string))))
468 (mapcar (lambda (flag)
469 (capitalize (symbol-name flag)))
471 (concat " (" (mapconcat 'identity flag-strings ", ") ")"))
473 (wl-line-formatter-setup
474 wl-message-buffer-mode-line-formatter
475 wl-message-mode-line-format
476 wl-message-mode-line-format-spec-alist)
477 (setq mode-line-buffer-identification
478 (funcall wl-message-buffer-mode-line-formatter))
480 ; (when wl-highlight-body-too
481 ; (wl-highlight-body))
482 (ignore-errors (wl-message-narrow-to-page))
483 (setq cache-used (cdr cache-used))
484 (goto-char (point-min))
485 (when (re-search-forward "^$" nil t)
486 (wl-message-add-buttons-to-header (point-min) (point))
487 (wl-message-add-buttons-to-body (point) (point-max)))
488 (when (and wl-message-use-header-narrowing
490 (wl-message-header-narrowing))
491 (goto-char (point-min))
492 (ignore-errors (run-hooks 'wl-message-redisplay-hook))
493 ;; go back to summary mode
494 (set-buffer-modified-p nil)
495 (setq buffer-read-only t)
496 (set-buffer summary-buf)
497 (setq summary-win (get-buffer-window summary-buf))
498 (if (window-live-p summary-win)
499 (select-window summary-win))
502 (defun wl-message-buffer-display-type (mode all-header)
503 (let ((type (symbol-name mode)))
504 (when all-header (setq type (concat type "-all-header")))
507 ;; Use message buffer cache.
508 (defun wl-message-buffer-display (folder number mode all-header
509 &optional force-reload unread)
510 (let* ((msg-id (ignore-errors (elmo-message-field folder number
512 (fname (elmo-folder-name-internal folder))
513 (hit (wl-message-buffer-cache-hit (list fname number msg-id)))
516 (when (and hit (not (buffer-live-p hit)))
517 (wl-message-buffer-cache-delete (list fname number msg-id))
521 ;; move hit to the top.
522 (wl-message-buffer-cache-sort
523 (wl-message-buffer-cache-entry-make (list fname number msg-id) hit))
524 ;; buffer cache is used.
526 (with-current-buffer hit
527 ;; Rewind to the top page
529 (goto-char (point-min))
530 (ignore-errors (wl-message-narrow-to-page))
531 (unless (eq wl-message-buffer-cur-display-type
532 (wl-message-buffer-display-type mode all-header))
534 ;; delete tail and add new to the top.
535 (setq hit (wl-message-buffer-cache-add (list fname number msg-id)))
537 (if (or force-reload read)
543 (wl-message-display-internal folder number mode all-header
544 force-reload unread))
545 (setq wl-message-buffer-cur-display-type
546 (wl-message-buffer-display-type mode all-header)))
548 (wl-message-buffer-cache-delete)
549 (error "Display message %s/%s is quitted" fname number))
551 (wl-message-buffer-cache-delete)
552 (signal (car err) (cdr err))
553 nil))) ;; will not be used
554 (cons hit cache-used)))
556 (defun wl-message-display-internal (folder number mode all-header
557 &optional force-reload unread)
558 (let ((default-mime-charset wl-mime-charset)
559 (elmo-mime-charset wl-mime-charset))
560 (setq wl-message-buffer-require-all-header all-header)
562 (if (or (eq mode 'as-is)
563 (eq mode 'header-only))
564 (let ((elmo-mime-display-header-analysis (eq mode 'header-only))
565 (wl-highlight-x-face-function
566 (unless (eq mode 'as-is) wl-highlight-x-face-function)))
567 (prog1 (elmo-mime-display-as-is folder number
569 (wl-message-get-original-buffer)
570 'wl-original-message-mode
573 (wl-message-define-keymap))
574 (let (buffer-read-only)
575 (wl-highlight-message (point-min) (point-max) t))))
576 (elmo-mime-message-display folder number
578 (wl-message-get-original-buffer)
579 'wl-original-message-mode
582 (wl-message-define-keymap)))
583 (let (buffer-read-only)
584 (put-text-property (point-min) (point-max)
585 'wl-message-display-mime-mode mode))
586 (run-hooks 'wl-message-display-internal-hook)
587 (setq buffer-read-only t))))
589 (defun wl-message-buffer-prefetch-p (folder &optional number)
590 (and (or (not number)
591 (elmo-message-file-p folder number)
592 (let ((size (elmo-message-field folder number 'size)))
593 (not (and (integerp size)
594 wl-message-buffer-prefetch-threshold
595 (>= size wl-message-buffer-prefetch-threshold)))))
597 (elmo-folder-plugged-p folder)
598 (elmo-file-cache-exists-p
599 (elmo-message-field folder number 'message-id)))
601 ((eq wl-message-buffer-prefetch-folder-type-list t)
603 ((and number wl-message-buffer-prefetch-folder-type-list)
604 (memq (elmo-folder-type-internal
605 (elmo-message-folder folder number))
606 wl-message-buffer-prefetch-folder-type-list))
607 (wl-message-buffer-prefetch-folder-type-list
608 (let ((list wl-message-buffer-prefetch-folder-type-list)
611 (while (setq type (pop list))
612 (if (elmo-folder-contains-type folder type)
613 (throw 'done t)))))))
615 ((consp wl-message-buffer-prefetch-folder-list)
616 (wl-string-match-member (elmo-folder-name-internal folder)
617 wl-message-buffer-prefetch-folder-list))
618 (t wl-message-buffer-prefetch-folder-list)))))
620 (defsubst wl-message-buffer-prefetch-clear-timer ()
621 ;;; cannot use for the bug of fsf-compat package (1.09).
622 ;;; (cancel-function-timers 'wl-message-buffer-prefetch-subr)
623 (if (fboundp 'run-with-idle-timer)
624 (if (featurep 'xemacs)
625 (let ((p itimer-list))
627 (if (eq 'wl-message-buffer-prefetch-subr
628 (itimer-function (car p)))
629 (delete-itimer (car p)))
631 ;; FSF Emacs is correct
632 (cancel-function-timers 'wl-message-buffer-prefetch-subr))))
634 (defsubst wl-message-buffer-prefetch-set-timer (folder number count
636 (if (not (fboundp 'run-with-idle-timer))
637 (when (sit-for wl-message-buffer-prefetch-idle-time)
638 (wl-message-buffer-prefetch-subr
639 folder number count summary charset))
641 wl-message-buffer-prefetch-idle-time
643 'wl-message-buffer-prefetch-subr
644 folder number count summary charset)))
646 (defvar wl-message-buffer-prefetch-move-spec-alist nil)
648 (defun wl-message-buffer-prefetch-get-next (folder number summary)
649 (if (buffer-live-p summary)
650 (with-current-buffer summary
651 (let ((wl-summary-move-spec-alist
652 (or wl-message-buffer-prefetch-move-spec-alist
653 wl-summary-move-spec-alist))
655 (while (and (setq next (funcall
656 wl-message-buffer-prefetch-get-next-function
658 (not (wl-message-buffer-prefetch-p folder next))))
661 (defun wl-message-buffer-prefetch (folder number count
662 &optional summary charset)
663 (let* ((summary (or summary (get-buffer wl-summary-buffer-name)))
666 (wl-message-buffer-prefetch-p folder))
667 (unless (wl-message-buffer-prefetch-p folder number)
669 (wl-message-buffer-prefetch-get-next folder number summary)))
671 (wl-message-buffer-prefetch-clear-timer)
672 (wl-message-buffer-prefetch-set-timer
673 folder num count summary charset)))))
675 (defun wl-message-buffer-prefetch-next (folder number count
676 &optional summary charset)
677 (let* ((summary (or summary (get-buffer wl-summary-buffer-name)))
680 (wl-message-buffer-prefetch-p folder))
681 (setq next (wl-message-buffer-prefetch-get-next folder number summary))
683 (wl-message-buffer-prefetch-clear-timer)
684 (wl-message-buffer-prefetch-set-timer
685 folder next count summary charset)))))
687 (defun wl-message-buffer-prefetch-subr (folder number count summary charset)
688 (if (buffer-live-p summary)
689 (with-current-buffer summary
692 (>= (setq count (- count 1)) 0)
693 (string= (elmo-folder-name-internal folder)
694 (wl-summary-buffer-folder-name)))
695 (let* ((wl-mime-charset charset)
696 (default-mime-charset charset)
697 (message-id (elmo-message-field folder number 'message-id))
698 (key (list (elmo-folder-name-internal folder)
700 (hit (wl-message-buffer-cache-hit key))
701 result time1 time2 sec micro)
702 (when wl-message-buffer-prefetch-debug
703 (message "%d: count %d, hit %s" number count (buffer-name hit)))
704 (if (and hit (buffer-live-p hit))
706 (wl-message-buffer-cache-sort
707 (wl-message-buffer-cache-entry-make key hit))
708 (wl-message-buffer-prefetch-subr
710 (wl-message-buffer-prefetch-get-next
711 folder number summary)
712 count summary charset))
714 (when wl-message-buffer-prefetch-debug
715 (setq time1 (current-time))
716 (message "Prefetching %d..." number))
717 (setq result (wl-message-buffer-display
718 folder number 'mime nil nil 'unread))
719 (when wl-message-buffer-prefetch-debug
720 (setq time2 (current-time))
721 (setq sec (- (nth 1 time2)(nth 1 time1)))
722 (setq micro (- (nth 2 time2)(nth 2 time1)))
723 (setq micro (+ micro (* 1000000 sec)))
724 (message "Prefetching %d...done(%f msec)."
729 (wl-message-buffer-prefetch-set-timer
731 (wl-message-buffer-prefetch-get-next
732 folder number summary)
733 count summary charset)
738 (when wl-message-buffer-prefetch-debug
739 (message "Buffer Cached Messages: %s"
742 (if (numberp (nth 1 (car cache)))
745 (elmo-folder-name-internal folder))
748 (format "*%d" (nth 1 (car cache))))
750 wl-message-buffer-cache " "))) )))
752 (defvar wl-message-button-map (make-sparse-keymap))
754 (defun wl-message-add-button (from to function &optional data)
755 "Create a button between FROM and TO with callback FUNCTION and DATA."
758 (nconc (list 'wl-message-button-callback function)
760 (list 'wl-message-button-data data))))
761 (let ((ov (make-overlay from to)))
762 (overlay-put ov 'mouse-face 'highlight)
763 (overlay-put ov 'local-map wl-message-button-map)
764 (overlay-put ov 'evaporate t)))
766 (defun wl-message-button-dispatcher (event)
767 "Select the button under point."
769 (mouse-set-point event)
770 (let ((callback (get-text-property (point) 'wl-message-button-callback))
771 (data (get-text-property (point) 'wl-message-button-data)))
773 (funcall callback data)
774 (wl-message-button-dispatcher-internal event))))
776 (defun wl-message-button-refer-article (data)
777 "Read article specified by Message-ID DATA at point."
778 (switch-to-buffer-other-window
779 wl-message-buffer-cur-summary-buffer)
780 (if (wl-summary-jump-to-msg-by-message-id data)
781 (wl-summary-redisplay)))
783 (defun wl-message-uu-substring (buf outbuf &optional first last)
786 (search-forward "\n\n")
788 ep filename case-fold-search)
792 (if (re-search-forward "^begin[ \t]+[0-9]+[ \t]+\\([^ ].*\\)" nil t)
793 (setq filename (buffer-substring (match-beginning 1)(match-end 1)))
795 (re-search-forward "^M.*$" nil t)) ; uuencoded string
798 (goto-char (point-max))
800 (re-search-backward "^end" sp t)
801 (re-search-backward "^M.*$" sp t)) ; uuencoded string
805 (goto-char (point-max))
806 (insert-buffer-substring buf sp ep)
810 ;;; Header narrowing courtesy of Hideyuki Shirai.
811 (defun wl-message-header-narrowing ()
813 (unless (eq this-command 'wl-summary-redisplay-all-header)
816 (goto-char (point-min))
817 (if (re-search-forward "^$" nil t)
819 (goto-char (point-max)))
820 (narrow-to-region (point-min) (point))
821 (let ((fields wl-message-header-narrowing-fields))
823 (wl-message-header-narrowing-1 (concat "^" (car fields) ":"))
824 (setq fields (cdr fields))))))))
826 (defvar wl-message-header-narrowing-map (make-sparse-keymap))
827 (define-key wl-message-header-narrowing-map [mouse-2]
828 'wl-message-header-narrowing-again-at-mouse)
830 (defvar wl-message-header-narrowing-widen-map (make-sparse-keymap))
831 (define-key wl-message-header-narrowing-widen-map [mouse-2]
832 'wl-message-header-narrowing-widen-at-mouse)
834 (defun wl-message-header-narrowing-again-at-mouse (event)
836 (save-window-excursion
838 (mouse-set-point event)
839 (wl-message-header-narrowing))))
841 (defun wl-message-header-narrowing-1 (hregexp)
842 (let ((case-fold-search t)
844 (goto-char (point-min))
845 (while (re-search-forward hregexp nil t)
846 (setq start (match-beginning 0))
848 (setq end (progn (while (looking-at "^[ \t]") (forward-line))
850 (line-end-position)))
851 (if (<= (count-lines start end) wl-message-header-narrowing-lines)
854 (forward-line (1- wl-message-header-narrowing-lines))
857 (unless (eq (get-char-property start 'invisible)
858 'wl-message-header-narrowing)
860 (let ((ovs (overlays-at start))
862 (while (and ovs (not (overlayp ov)))
863 (if (overlay-get (car ovs)
864 'wl-message-header-narrowing)
866 (setq ovs (cdr ovs)))
868 (make-overlay start end)))
869 (overlay-put ov 'wl-message-header-narrowing t)
870 (overlay-put ov 'evaporate t)
871 (overlay-put ov 'invisible 'wl-message-header-narrowing)
872 (overlay-put ov 'after-string
873 wl-message-header-narrowing-string))))))
875 (defun wl-message-header-narrowing-widen-at-mouse (event)
877 (save-selected-window
878 (select-window (posn-window (event-start event)))
879 (let* ((win (selected-window))
880 (wpos (window-start win))
881 (pos (mouse-set-point event))
882 (ovs (overlays-in (1- pos) (1+ pos))) ;; Uum...
884 (while (and ovs (not (overlayp ov)))
885 (when (overlay-get (car ovs) 'wl-message-header-narrowing)
887 (setq ovs (cdr ovs)))
889 (overlay-put ov 'face 'wl-message-header-narrowing-face)
890 (overlay-put ov 'local-map wl-message-header-narrowing-map)
891 (overlay-put ov 'invisible nil)
892 (overlay-put ov 'after-string nil))
893 (set-window-start win wpos))))
895 (defun wl-message-header-narrowing-setup ()
896 (when (boundp 'line-move-ignore-invisible)
897 (set (make-local-variable 'line-move-ignore-invisible) t))
898 (set-text-properties 0 (length wl-message-header-narrowing-string)
900 wl-message-header-narrowing-face
902 ,wl-message-header-narrowing-widen-map)
903 wl-message-header-narrowing-string))
905 (defun wl-message-header-narrowing-toggle ()
906 "Toggle header narrowing."
908 (when wl-message-use-header-narrowing
910 (goto-char (point-min))
911 (if (re-search-forward "^$" nil t)
913 (goto-char (point-max)))
914 (let ((ovs (overlays-in (point-min) (point)))
916 (while (setq ov (car ovs))
917 (when (overlay-get ov 'wl-message-header-narrowing)
918 (setq hn-ovs (cons ov hn-ovs)))
919 (setq ovs (cdr ovs)))
922 (delete-overlay (car hn-ovs))
923 (setq hn-ovs (cdr hn-ovs)))
924 (wl-message-header-narrowing))))))
927 (product-provide (provide 'wl-message) (require 'wl-version))
929 ;;; wl-message.el ends here