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 display-type &optional force-reload)
422 (let* ((default-mime-charset wl-mime-charset)
423 (buffer-read-only nil)
424 (summary-buf (current-buffer))
428 summary-win delim flags)
429 (setq buffer-read-only nil)
430 (setq cache-used (wl-message-buffer-display
431 folder number display-type force-reload))
432 (setq wl-message-buffer (car cache-used))
433 (setq message-buf wl-message-buffer)
434 (wl-message-select-buffer wl-message-buffer)
436 (set-buffer message-buf)
437 (wl-deactivate-region)
438 (make-local-variable 'truncate-partial-width-windows)
439 (setq truncate-partial-width-windows nil)
440 (setq truncate-lines wl-message-truncate-lines)
441 (setq buffer-read-only nil)
442 (setq wl-message-buffer-cur-summary-buffer summary-buf)
443 (setq wl-message-buffer-cur-folder (elmo-folder-name-internal folder))
444 (setq wl-message-buffer-cur-number number)
445 (setq wl-message-buffer-flag-indicator
446 (if (setq flags (elmo-get-global-flags (elmo-message-flags
448 (let ((fl wl-summary-flag-alist)
449 flag-strings flag-string face)
451 (when (memq (car (car fl)) flags)
452 (setq flag-string (capitalize
453 (symbol-name (car (car fl))))
454 flags (delq (car (car fl)) flags))
455 (when (facep (setq face
458 "wl-highlight-summary-%s-flag-face"
460 (put-text-property 0 (length flag-string)
461 'face face flag-string))
462 (setq flag-strings (nconc flag-strings
463 (list flag-string))))
467 (mapcar (lambda (flag)
468 (capitalize (symbol-name flag)))
470 (concat " (" (mapconcat 'identity flag-strings ", ") ")"))
472 (wl-line-formatter-setup
473 wl-message-buffer-mode-line-formatter
474 wl-message-mode-line-format
475 wl-message-mode-line-format-spec-alist)
476 (setq mode-line-buffer-identification
477 (funcall wl-message-buffer-mode-line-formatter))
479 ; (when wl-highlight-body-too
480 ; (wl-highlight-body))
481 (ignore-errors (wl-message-narrow-to-page))
482 (setq cache-used (cdr cache-used))
483 (goto-char (point-min))
484 (when (re-search-forward "^$" nil t)
485 (wl-message-add-buttons-to-header (point-min) (point))
486 (wl-message-add-buttons-to-body (point) (point-max)))
487 (when wl-message-use-header-narrowing
488 (wl-message-header-narrowing))
489 (goto-char (point-min))
490 (ignore-errors (run-hooks 'wl-message-redisplay-hook))
491 ;; go back to summary mode
492 (set-buffer-modified-p nil)
493 (setq buffer-read-only t)
494 (set-buffer summary-buf)
495 (setq summary-win (get-buffer-window summary-buf))
496 (if (window-live-p summary-win)
497 (select-window summary-win))
500 ;; Use message buffer cache.
501 (defun wl-message-buffer-display (folder number display-type
502 &optional force-reload unread)
503 (let* ((msg-id (ignore-errors (elmo-message-field folder number
505 (fname (elmo-folder-name-internal folder))
506 (hit (wl-message-buffer-cache-hit (list fname number msg-id)))
509 (when (and hit (not (buffer-live-p hit)))
510 (wl-message-buffer-cache-delete (list fname number msg-id))
514 ;; move hit to the top.
515 (wl-message-buffer-cache-sort
516 (wl-message-buffer-cache-entry-make (list fname number msg-id) hit))
517 ;; buffer cache is used.
519 (with-current-buffer hit
520 ;; Rewind to the top page
522 (goto-char (point-min))
523 (ignore-errors (wl-message-narrow-to-page))
524 (unless (eq wl-message-buffer-cur-display-type display-type)
526 ;; delete tail and add new to the top.
527 (setq hit (wl-message-buffer-cache-add (list fname number msg-id)))
529 (if (or force-reload read)
535 (wl-message-display-internal folder number display-type
536 force-reload unread))
537 (setq wl-message-buffer-cur-display-type display-type))
539 (wl-message-buffer-cache-delete)
540 (error "Display message %s/%s is quitted" fname number))
542 (wl-message-buffer-cache-delete)
543 (signal (car err) (cdr err))
544 nil))) ;; will not be used
545 (cons hit cache-used)))
547 (defun wl-message-display-internal (folder number display-type
548 &optional force-reload unread)
549 (let ((default-mime-charset wl-mime-charset)
550 (elmo-mime-charset wl-mime-charset))
551 (setq wl-message-buffer-require-all-header (eq display-type
554 (if (eq display-type 'as-is)
555 (let (wl-highlight-x-face-function)
556 (prog1 (elmo-mime-display-as-is folder number
558 (wl-message-get-original-buffer)
559 'wl-original-message-mode
562 (wl-message-define-keymap))
563 (let (buffer-read-only)
564 (wl-highlight-message (point-min) (point-max) t))))
565 (elmo-mime-message-display folder number
567 (wl-message-get-original-buffer)
568 'wl-original-message-mode
571 (wl-message-define-keymap)))
572 (run-hooks 'wl-message-display-internal-hook)
573 (setq buffer-read-only t))))
575 (defun wl-message-buffer-prefetch-p (folder &optional number)
576 (and (or (not number)
577 (elmo-message-file-p folder number)
578 (let ((size (elmo-message-field folder number 'size)))
579 (not (and (integerp size)
580 wl-message-buffer-prefetch-threshold
581 (>= size wl-message-buffer-prefetch-threshold)))))
583 (elmo-folder-plugged-p folder)
584 (elmo-file-cache-exists-p
585 (elmo-message-field folder number 'message-id)))
587 ((eq wl-message-buffer-prefetch-folder-type-list t)
589 ((and number wl-message-buffer-prefetch-folder-type-list)
590 (memq (elmo-folder-type-internal
591 (elmo-message-folder folder number))
592 wl-message-buffer-prefetch-folder-type-list))
593 (wl-message-buffer-prefetch-folder-type-list
594 (let ((list wl-message-buffer-prefetch-folder-type-list)
597 (while (setq type (pop list))
598 (if (elmo-folder-contains-type folder type)
599 (throw 'done t)))))))
601 ((consp wl-message-buffer-prefetch-folder-list)
602 (wl-string-match-member (elmo-folder-name-internal folder)
603 wl-message-buffer-prefetch-folder-list))
604 (t wl-message-buffer-prefetch-folder-list)))))
606 (defsubst wl-message-buffer-prefetch-clear-timer ()
607 ;;; cannot use for the bug of fsf-compat package (1.09).
608 ;;; (cancel-function-timers 'wl-message-buffer-prefetch-subr)
609 (if (fboundp 'run-with-idle-timer)
610 (if (featurep 'xemacs)
611 (let ((p itimer-list))
613 (if (eq 'wl-message-buffer-prefetch-subr
614 (itimer-function (car p)))
615 (delete-itimer (car p)))
617 ;; FSF Emacs is correct
618 (cancel-function-timers 'wl-message-buffer-prefetch-subr))))
620 (defsubst wl-message-buffer-prefetch-set-timer (folder number count
622 (if (not (fboundp 'run-with-idle-timer))
623 (when (sit-for wl-message-buffer-prefetch-idle-time)
624 (wl-message-buffer-prefetch-subr
625 folder number count summary charset))
627 wl-message-buffer-prefetch-idle-time
629 'wl-message-buffer-prefetch-subr
630 folder number count summary charset)))
632 (defvar wl-message-buffer-prefetch-move-spec-alist nil)
634 (defun wl-message-buffer-prefetch-get-next (folder number summary)
635 (if (buffer-live-p summary)
636 (with-current-buffer summary
637 (let ((wl-summary-move-spec-alist
638 (or wl-message-buffer-prefetch-move-spec-alist
639 wl-summary-move-spec-alist))
641 (while (and (setq next (funcall
642 wl-message-buffer-prefetch-get-next-function
644 (not (wl-message-buffer-prefetch-p folder next))))
647 (defun wl-message-buffer-prefetch (folder number count
648 &optional summary charset)
649 (let* ((summary (or summary (get-buffer wl-summary-buffer-name)))
652 (wl-message-buffer-prefetch-p folder))
653 (unless (wl-message-buffer-prefetch-p folder number)
655 (wl-message-buffer-prefetch-get-next folder number summary)))
657 (wl-message-buffer-prefetch-clear-timer)
658 (wl-message-buffer-prefetch-set-timer
659 folder num count summary charset)))))
661 (defun wl-message-buffer-prefetch-next (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 (setq next (wl-message-buffer-prefetch-get-next folder number summary))
669 (wl-message-buffer-prefetch-clear-timer)
670 (wl-message-buffer-prefetch-set-timer
671 folder next count summary charset)))))
673 (defun wl-message-buffer-prefetch-subr (folder number count summary charset)
674 (if (buffer-live-p summary)
675 (with-current-buffer summary
678 (>= (setq count (- count 1)) 0)
679 (string= (elmo-folder-name-internal folder)
680 (wl-summary-buffer-folder-name)))
681 (let* ((wl-mime-charset charset)
682 (default-mime-charset charset)
683 (message-id (elmo-message-field folder number 'message-id))
684 (key (list (elmo-folder-name-internal folder)
686 (hit (wl-message-buffer-cache-hit key))
687 result time1 time2 sec micro)
688 (when wl-message-buffer-prefetch-debug
689 (message "%d: count %d, hit %s" number count (buffer-name hit)))
690 (if (and hit (buffer-live-p hit))
692 (wl-message-buffer-cache-sort
693 (wl-message-buffer-cache-entry-make key hit))
694 (wl-message-buffer-prefetch-subr
696 (wl-message-buffer-prefetch-get-next
697 folder number summary)
698 count summary charset))
700 (when wl-message-buffer-prefetch-debug
701 (setq time1 (current-time))
702 (message "Prefetching %d..." number))
703 (setq result (wl-message-buffer-display
704 folder number 'mime nil 'unread))
705 (when wl-message-buffer-prefetch-debug
706 (setq time2 (current-time))
707 (setq sec (- (nth 1 time2)(nth 1 time1)))
708 (setq micro (- (nth 2 time2)(nth 2 time1)))
709 (setq micro (+ micro (* 1000000 sec)))
710 (message "Prefetching %d...done(%f msec)."
715 (wl-message-buffer-prefetch-set-timer
717 (wl-message-buffer-prefetch-get-next
718 folder number summary)
719 count summary charset)
724 (when wl-message-buffer-prefetch-debug
725 (message "Buffer Cached Messages: %s"
728 (if (numberp (nth 1 (car cache)))
731 (elmo-folder-name-internal folder))
734 (format "*%d" (nth 1 (car cache))))
736 wl-message-buffer-cache " "))) )))
738 (defvar wl-message-button-map (make-sparse-keymap))
740 (defun wl-message-add-button (from to function &optional data)
741 "Create a button between FROM and TO with callback FUNCTION and DATA."
744 (nconc (list 'wl-message-button-callback function)
746 (list 'wl-message-button-data data))))
747 (let ((ov (make-overlay from to)))
748 (overlay-put ov 'mouse-face 'highlight)
749 (overlay-put ov 'local-map wl-message-button-map)
750 (overlay-put ov 'evaporate t)))
752 (defun wl-message-button-dispatcher (event)
753 "Select the button under point."
755 (mouse-set-point event)
756 (let ((callback (get-text-property (point) 'wl-message-button-callback))
757 (data (get-text-property (point) 'wl-message-button-data)))
759 (funcall callback data)
760 (wl-message-button-dispatcher-internal event))))
762 (defun wl-message-button-refer-article (data)
763 "Read article specified by Message-ID DATA at point."
764 (switch-to-buffer-other-window
765 wl-message-buffer-cur-summary-buffer)
766 (if (wl-summary-jump-to-msg-by-message-id data)
767 (wl-summary-redisplay)))
769 (defun wl-message-uu-substring (buf outbuf &optional first last)
772 (search-forward "\n\n")
774 ep filename case-fold-search)
778 (if (re-search-forward "^begin[ \t]+[0-9]+[ \t]+\\([^ ].*\\)" nil t)
779 (setq filename (buffer-substring (match-beginning 1)(match-end 1)))
781 (re-search-forward "^M.*$" nil t)) ; uuencoded string
784 (goto-char (point-max))
786 (re-search-backward "^end" sp t)
787 (re-search-backward "^M.*$" sp t)) ; uuencoded string
791 (goto-char (point-max))
792 (insert-buffer-substring buf sp ep)
796 ;;; Header narrowing courtesy of Hideyuki Shirai.
797 (defun wl-message-header-narrowing ()
799 (unless (eq this-command 'wl-summary-redisplay-all-header)
802 (goto-char (point-min))
803 (if (re-search-forward "^$" nil t)
805 (goto-char (point-max)))
806 (narrow-to-region (point-min) (point))
807 (let ((fields wl-message-header-narrowing-fields))
809 (wl-message-header-narrowing-1 (concat "^" (car fields) ":"))
810 (setq fields (cdr fields))))))))
812 (defvar wl-message-header-narrowing-map (make-sparse-keymap))
813 (define-key wl-message-header-narrowing-map [mouse-2]
814 'wl-message-header-narrowing-again-at-mouse)
816 (defvar wl-message-header-narrowing-widen-map (make-sparse-keymap))
817 (define-key wl-message-header-narrowing-widen-map [mouse-2]
818 'wl-message-header-narrowing-widen-at-mouse)
820 (defun wl-message-header-narrowing-again-at-mouse (event)
822 (save-window-excursion
824 (mouse-set-point event)
825 (wl-message-header-narrowing))))
827 (defun wl-message-header-narrowing-1 (hregexp)
828 (let ((case-fold-search t)
830 (goto-char (point-min))
831 (while (re-search-forward hregexp nil t)
832 (setq start (match-beginning 0))
834 (setq end (progn (while (looking-at "^[ \t]") (forward-line))
836 (line-end-position)))
837 (if (<= (count-lines start end) wl-message-header-narrowing-lines)
840 (forward-line (1- wl-message-header-narrowing-lines))
843 (unless (eq (get-char-property start 'invisible)
844 'wl-message-header-narrowing)
846 (let ((ovs (overlays-at start))
848 (while (and ovs (not (overlayp ov)))
849 (if (overlay-get (car ovs)
850 'wl-message-header-narrowing)
852 (setq ovs (cdr ovs)))
854 (make-overlay start end)))
855 (overlay-put ov 'wl-message-header-narrowing t)
856 (overlay-put ov 'evaporate t)
857 (overlay-put ov 'invisible 'wl-message-header-narrowing)
858 (overlay-put ov 'after-string
859 wl-message-header-narrowing-string))))))
861 (defun wl-message-header-narrowing-widen-at-mouse (event)
863 (save-selected-window
864 (select-window (posn-window (event-start event)))
865 (let* ((win (selected-window))
866 (wpos (window-start win))
867 (pos (mouse-set-point event))
868 (ovs (overlays-in (1- pos) (1+ pos))) ;; Uum...
870 (while (and ovs (not (overlayp ov)))
871 (when (overlay-get (car ovs) 'wl-message-header-narrowing)
873 (setq ovs (cdr ovs)))
875 (overlay-put ov 'face 'wl-message-header-narrowing-face)
876 (overlay-put ov 'local-map wl-message-header-narrowing-map)
877 (overlay-put ov 'invisible nil)
878 (overlay-put ov 'after-string nil))
879 (set-window-start win wpos))))
881 (defun wl-message-header-narrowing-setup ()
882 (when (boundp 'line-move-ignore-invisible)
883 (set (make-local-variable 'line-move-ignore-invisible) t))
884 (set-text-properties 0 (length wl-message-header-narrowing-string)
886 wl-message-header-narrowing-face
888 ,wl-message-header-narrowing-widen-map)
889 wl-message-header-narrowing-string))
891 (defun wl-message-header-narrowing-toggle ()
892 "Toggle header narrowing."
894 (when wl-message-use-header-narrowing
896 (goto-char (point-min))
897 (if (re-search-forward "^$" nil t)
899 (goto-char (point-max)))
900 (let ((ovs (overlays-in (point-min) (point)))
902 (while (setq ov (car ovs))
903 (when (overlay-get ov 'wl-message-header-narrowing)
904 (setq hn-ovs (cons ov hn-ovs)))
905 (setq ovs (cdr ovs)))
908 (delete-overlay (car hn-ovs))
909 (setq hn-ovs (cdr hn-ovs)))
910 (wl-message-header-narrowing))))))
913 (product-provide (provide 'wl-message) (require 'wl-version))
915 ;;; wl-message.el ends here