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 ;; display-type object definition.
422 (defun wl-message-make-display-type (mime header)
425 (setq symbol (intern (format "%s-%s-header" mime header)))
427 'wl-message-display-type
428 (list :mime mime :header header)))))
430 (defun wl-message-display-type-property (display-type prop)
431 (plist-get (get display-type 'wl-message-display-type) prop))
433 (defun wl-message-mime-analysis-p (display-type &optional header-or-body)
434 (let ((mode (wl-message-display-type-property display-type :mime)))
437 (memq mode '(mime header-only)))
441 (defun wl-message-display-all-header-p (display-type)
442 (eq (wl-message-display-type-property display-type :header) 'all))
444 (defun wl-message-buffer-display-type (&optional message-buffer)
446 (with-current-buffer message-buffer
447 wl-message-buffer-cur-display-type)
448 wl-message-buffer-cur-display-type))
450 (defun wl-message-redisplay (folder number display-type &optional force-reload)
451 (let* ((default-mime-charset wl-mime-charset)
452 (buffer-read-only nil)
453 (summary-buf (current-buffer))
457 summary-win delim flags)
458 (setq buffer-read-only nil)
459 (setq cache-used (wl-message-buffer-display
460 folder number display-type force-reload))
461 (setq wl-message-buffer (car cache-used))
462 (setq message-buf wl-message-buffer)
463 (wl-message-select-buffer wl-message-buffer)
465 (set-buffer message-buf)
466 (wl-deactivate-region)
467 (make-local-variable 'truncate-partial-width-windows)
468 (setq truncate-partial-width-windows nil)
469 (setq truncate-lines wl-message-truncate-lines)
470 (setq buffer-read-only nil)
471 (setq wl-message-buffer-cur-summary-buffer summary-buf)
472 (setq wl-message-buffer-cur-folder (elmo-folder-name-internal folder))
473 (setq wl-message-buffer-cur-number number)
474 (setq wl-message-buffer-flag-indicator
475 (if (setq flags (elmo-get-global-flags (elmo-message-flags
477 (let ((fl wl-summary-flag-alist)
478 flag-strings flag-string face)
480 (when (memq (car (car fl)) flags)
481 (setq flag-string (capitalize
482 (symbol-name (car (car fl))))
483 flags (delq (car (car fl)) flags))
484 (when (facep (setq face
487 "wl-highlight-summary-%s-flag-face"
489 (put-text-property 0 (length flag-string)
490 'face face flag-string))
491 (setq flag-strings (nconc flag-strings
492 (list flag-string))))
496 (mapcar (lambda (flag)
497 (capitalize (symbol-name flag)))
499 (concat " (" (mapconcat 'identity flag-strings ", ") ")"))
501 (wl-line-formatter-setup
502 wl-message-buffer-mode-line-formatter
503 wl-message-mode-line-format
504 wl-message-mode-line-format-spec-alist)
505 (setq mode-line-buffer-identification
506 (funcall wl-message-buffer-mode-line-formatter))
508 ; (when wl-highlight-body-too
509 ; (wl-highlight-body))
510 (ignore-errors (wl-message-narrow-to-page))
511 (setq cache-used (cdr cache-used))
512 (goto-char (point-min))
513 (when (re-search-forward "^$" nil t)
514 (wl-message-add-buttons-to-header (point-min) (point))
515 (wl-message-add-buttons-to-body (point) (point-max)))
516 (when (and wl-message-use-header-narrowing
517 (not (wl-message-display-all-header-p display-type)))
518 (wl-message-header-narrowing))
519 (goto-char (point-min))
520 (ignore-errors (run-hooks 'wl-message-redisplay-hook))
521 ;; go back to summary mode
522 (set-buffer-modified-p nil)
523 (setq buffer-read-only t)
524 (set-buffer summary-buf)
525 (setq summary-win (get-buffer-window summary-buf))
526 (if (window-live-p summary-win)
527 (select-window summary-win))
530 ;; Use message buffer cache.
531 (defun wl-message-buffer-display (folder number display-type
532 &optional force-reload unread)
533 (let* ((msg-id (ignore-errors (elmo-message-field folder number
535 (fname (elmo-folder-name-internal folder))
536 (hit (wl-message-buffer-cache-hit (list fname number msg-id)))
539 (when (and hit (not (buffer-live-p hit)))
540 (wl-message-buffer-cache-delete (list fname number msg-id))
544 ;; move hit to the top.
545 (wl-message-buffer-cache-sort
546 (wl-message-buffer-cache-entry-make (list fname number msg-id) hit))
547 ;; buffer cache is used.
549 (with-current-buffer hit
550 ;; Rewind to the top page
552 (goto-char (point-min))
553 (ignore-errors (wl-message-narrow-to-page))
554 (unless (eq wl-message-buffer-cur-display-type display-type)
556 ;; delete tail and add new to the top.
557 (setq hit (wl-message-buffer-cache-add (list fname number msg-id)))
559 (if (or force-reload read)
565 (wl-message-display-internal folder number display-type
566 force-reload unread))
567 (setq wl-message-buffer-cur-display-type display-type))
569 (wl-message-buffer-cache-delete)
570 (error "Display message %s/%s is quitted" fname number))
572 (wl-message-buffer-cache-delete)
573 (signal (car err) (cdr err))
574 nil))) ;; will not be used
575 (cons hit cache-used)))
577 (defun wl-message-display-internal (folder number display-type
578 &optional force-reload unread)
579 (let ((default-mime-charset wl-mime-charset)
580 (elmo-mime-charset wl-mime-charset))
581 (setq wl-message-buffer-require-all-header
582 (wl-message-display-all-header-p display-type))
584 (if (wl-message-mime-analysis-p display-type)
585 (elmo-mime-message-display folder number
587 (wl-message-get-original-buffer)
588 'wl-original-message-mode
591 (wl-message-define-keymap))
592 (let* ((elmo-mime-display-header-analysis
593 (wl-message-mime-analysis-p display-type 'header))
594 (wl-highlight-x-face-function
595 (and elmo-mime-display-header-analysis
596 wl-highlight-x-face-function)))
597 (prog1 (elmo-mime-display-as-is folder number
599 (wl-message-get-original-buffer)
600 'wl-original-message-mode
603 (wl-message-define-keymap))
604 (let (buffer-read-only)
605 (wl-highlight-message (point-min) (point-max) t)))))
606 (run-hooks 'wl-message-display-internal-hook)
607 (setq buffer-read-only t))))
609 (defun wl-message-buffer-prefetch-p (folder &optional number)
610 (and (or (not number)
611 (elmo-message-file-p folder number)
612 (let ((size (elmo-message-field folder number 'size)))
613 (not (and (integerp size)
614 wl-message-buffer-prefetch-threshold
615 (>= size wl-message-buffer-prefetch-threshold)))))
617 (elmo-folder-plugged-p folder)
618 (elmo-file-cache-exists-p
619 (elmo-message-field folder number 'message-id)))
621 ((eq wl-message-buffer-prefetch-folder-type-list t)
623 ((and number wl-message-buffer-prefetch-folder-type-list)
624 (memq (elmo-folder-type-internal
625 (elmo-message-folder folder number))
626 wl-message-buffer-prefetch-folder-type-list))
627 (wl-message-buffer-prefetch-folder-type-list
628 (let ((list wl-message-buffer-prefetch-folder-type-list)
631 (while (setq type (pop list))
632 (if (elmo-folder-contains-type folder type)
633 (throw 'done t)))))))
635 ((consp wl-message-buffer-prefetch-folder-list)
636 (wl-string-match-member (elmo-folder-name-internal folder)
637 wl-message-buffer-prefetch-folder-list))
638 (t wl-message-buffer-prefetch-folder-list)))))
640 (defsubst wl-message-buffer-prefetch-clear-timer ()
641 ;;; cannot use for the bug of fsf-compat package (1.09).
642 ;;; (cancel-function-timers 'wl-message-buffer-prefetch-subr)
643 (if (fboundp 'run-with-idle-timer)
644 (if (featurep 'xemacs)
645 (let ((p itimer-list))
647 (if (eq 'wl-message-buffer-prefetch-subr
648 (itimer-function (car p)))
649 (delete-itimer (car p)))
651 ;; FSF Emacs is correct
652 (cancel-function-timers 'wl-message-buffer-prefetch-subr))))
654 (defsubst wl-message-buffer-prefetch-set-timer (folder number count
656 (if (not (fboundp 'run-with-idle-timer))
657 (when (sit-for wl-message-buffer-prefetch-idle-time)
658 (wl-message-buffer-prefetch-subr
659 folder number count summary charset))
661 wl-message-buffer-prefetch-idle-time
663 'wl-message-buffer-prefetch-subr
664 folder number count summary charset)))
666 (defvar wl-message-buffer-prefetch-move-spec-alist nil)
668 (defun wl-message-buffer-prefetch-get-next (folder number summary)
669 (if (buffer-live-p summary)
670 (with-current-buffer summary
671 (let ((wl-summary-move-spec-alist
672 (or wl-message-buffer-prefetch-move-spec-alist
673 wl-summary-move-spec-alist))
675 (while (and (setq next (funcall
676 wl-message-buffer-prefetch-get-next-function
678 (not (wl-message-buffer-prefetch-p folder next))))
681 (defun wl-message-buffer-prefetch (folder number count
682 &optional summary charset)
683 (let* ((summary (or summary (get-buffer wl-summary-buffer-name)))
686 (wl-message-buffer-prefetch-p folder))
687 (unless (wl-message-buffer-prefetch-p folder number)
689 (wl-message-buffer-prefetch-get-next folder number summary)))
691 (wl-message-buffer-prefetch-clear-timer)
692 (wl-message-buffer-prefetch-set-timer
693 folder num count summary charset)))))
695 (defun wl-message-buffer-prefetch-next (folder number count
696 &optional summary charset)
697 (let* ((summary (or summary (get-buffer wl-summary-buffer-name)))
700 (wl-message-buffer-prefetch-p folder))
701 (setq next (wl-message-buffer-prefetch-get-next folder number summary))
703 (wl-message-buffer-prefetch-clear-timer)
704 (wl-message-buffer-prefetch-set-timer
705 folder next count summary charset)))))
707 (defun wl-message-buffer-prefetch-subr (folder number count summary charset)
708 (if (buffer-live-p summary)
709 (with-current-buffer summary
712 (>= (setq count (- count 1)) 0)
713 (string= (elmo-folder-name-internal folder)
714 (wl-summary-buffer-folder-name)))
715 (let* ((wl-mime-charset charset)
716 (default-mime-charset charset)
717 (message-id (elmo-message-field folder number 'message-id))
718 (key (list (elmo-folder-name-internal folder)
720 (hit (wl-message-buffer-cache-hit key))
721 (display-type (wl-message-make-display-type
722 wl-summary-buffer-display-mime-mode
723 wl-summary-buffer-display-header-mode))
724 result time1 time2 sec micro)
725 (when wl-message-buffer-prefetch-debug
726 (message "%d: count %d, hit %s" number count (buffer-name hit)))
727 (if (and hit (buffer-live-p hit))
729 (wl-message-buffer-cache-sort
730 (wl-message-buffer-cache-entry-make key hit))
731 (wl-message-buffer-prefetch-subr
733 (wl-message-buffer-prefetch-get-next
734 folder number summary)
735 count summary charset))
737 (when wl-message-buffer-prefetch-debug
738 (setq time1 (current-time))
739 (message "Prefetching %d..." number))
740 (setq result (wl-message-buffer-display
741 folder number display-type nil 'unread))
742 (when wl-message-buffer-prefetch-debug
743 (setq time2 (current-time))
744 (setq sec (- (nth 1 time2)(nth 1 time1)))
745 (setq micro (- (nth 2 time2)(nth 2 time1)))
746 (setq micro (+ micro (* 1000000 sec)))
747 (message "Prefetching %d...done(%f msec)."
752 (wl-message-buffer-prefetch-set-timer
754 (wl-message-buffer-prefetch-get-next
755 folder number summary)
756 count summary charset)
761 (when wl-message-buffer-prefetch-debug
762 (message "Buffer Cached Messages: %s"
765 (if (numberp (nth 1 (car cache)))
768 (elmo-folder-name-internal folder))
771 (format "*%d" (nth 1 (car cache))))
773 wl-message-buffer-cache " "))) )))
775 (defvar wl-message-button-map (make-sparse-keymap))
777 (defun wl-message-add-button (from to function &optional data)
778 "Create a button between FROM and TO with callback FUNCTION and DATA."
781 (nconc (list 'wl-message-button-callback function)
783 (list 'wl-message-button-data data))))
784 (let ((ov (make-overlay from to)))
785 (overlay-put ov 'mouse-face 'highlight)
786 (overlay-put ov 'local-map wl-message-button-map)
787 (overlay-put ov 'evaporate t)))
789 (defun wl-message-button-dispatcher (event)
790 "Select the button under point."
792 (mouse-set-point event)
793 (let ((callback (get-text-property (point) 'wl-message-button-callback))
794 (data (get-text-property (point) 'wl-message-button-data)))
796 (funcall callback data)
797 (wl-message-button-dispatcher-internal event))))
799 (defun wl-message-button-refer-article (data)
800 "Read article specified by Message-ID DATA at point."
801 (switch-to-buffer-other-window
802 wl-message-buffer-cur-summary-buffer)
803 (if (wl-summary-jump-to-msg-by-message-id data)
804 (wl-summary-redisplay)))
806 (defun wl-message-uu-substring (buf outbuf &optional first last)
809 (search-forward "\n\n")
811 ep filename case-fold-search)
815 (if (re-search-forward "^begin[ \t]+[0-9]+[ \t]+\\([^ ].*\\)" nil t)
816 (setq filename (buffer-substring (match-beginning 1)(match-end 1)))
818 (re-search-forward "^M.*$" nil t)) ; uuencoded string
821 (goto-char (point-max))
823 (re-search-backward "^end" sp t)
824 (re-search-backward "^M.*$" sp t)) ; uuencoded string
828 (goto-char (point-max))
829 (insert-buffer-substring buf sp ep)
833 ;;; Header narrowing courtesy of Hideyuki Shirai.
834 (defun wl-message-header-narrowing ()
836 (unless (eq this-command 'wl-summary-redisplay-all-header)
839 (goto-char (point-min))
840 (if (re-search-forward "^$" nil t)
842 (goto-char (point-max)))
843 (narrow-to-region (point-min) (point))
844 (let ((fields wl-message-header-narrowing-fields))
846 (wl-message-header-narrowing-1 (concat "^" (car fields) ":"))
847 (setq fields (cdr fields))))))))
849 (defvar wl-message-header-narrowing-map (make-sparse-keymap))
850 (define-key wl-message-header-narrowing-map [mouse-2]
851 'wl-message-header-narrowing-again-at-mouse)
853 (defvar wl-message-header-narrowing-widen-map (make-sparse-keymap))
854 (define-key wl-message-header-narrowing-widen-map [mouse-2]
855 'wl-message-header-narrowing-widen-at-mouse)
857 (defun wl-message-header-narrowing-again-at-mouse (event)
859 (save-window-excursion
861 (mouse-set-point event)
862 (wl-message-header-narrowing))))
864 (defun wl-message-header-narrowing-1 (hregexp)
865 (let ((case-fold-search t)
867 (goto-char (point-min))
868 (while (re-search-forward hregexp nil t)
869 (setq start (match-beginning 0))
871 (setq end (progn (while (looking-at "^[ \t]") (forward-line))
873 (line-end-position)))
874 (if (<= (count-lines start end) wl-message-header-narrowing-lines)
877 (forward-line (1- wl-message-header-narrowing-lines))
880 (unless (eq (get-char-property start 'invisible)
881 'wl-message-header-narrowing)
883 (let ((ovs (overlays-at start))
885 (while (and ovs (not (overlayp ov)))
886 (if (overlay-get (car ovs)
887 'wl-message-header-narrowing)
889 (setq ovs (cdr ovs)))
891 (make-overlay start end)))
892 (overlay-put ov 'wl-message-header-narrowing t)
893 (overlay-put ov 'evaporate t)
894 (overlay-put ov 'invisible 'wl-message-header-narrowing)
895 (overlay-put ov 'after-string
896 wl-message-header-narrowing-string))))))
898 (defun wl-message-header-narrowing-widen-at-mouse (event)
900 (save-selected-window
901 (select-window (posn-window (event-start event)))
902 (let* ((win (selected-window))
903 (wpos (window-start win))
904 (pos (mouse-set-point event))
905 (ovs (overlays-in (1- pos) (1+ pos))) ;; Uum...
907 (while (and ovs (not (overlayp ov)))
908 (when (overlay-get (car ovs) 'wl-message-header-narrowing)
910 (setq ovs (cdr ovs)))
912 (overlay-put ov 'face 'wl-message-header-narrowing-face)
913 (overlay-put ov 'local-map wl-message-header-narrowing-map)
914 (overlay-put ov 'invisible nil)
915 (overlay-put ov 'after-string nil))
916 (set-window-start win wpos))))
918 (defun wl-message-header-narrowing-setup ()
919 (when (boundp 'line-move-ignore-invisible)
920 (set (make-local-variable 'line-move-ignore-invisible) t))
921 (set-text-properties 0 (length wl-message-header-narrowing-string)
923 wl-message-header-narrowing-face
925 ,wl-message-header-narrowing-widen-map)
926 wl-message-header-narrowing-string))
928 (defun wl-message-header-narrowing-toggle ()
929 "Toggle header narrowing."
931 (when wl-message-use-header-narrowing
933 (goto-char (point-min))
934 (if (re-search-forward "^$" nil t)
936 (goto-char (point-max)))
937 (let ((ovs (overlays-in (point-min) (point)))
939 (while (setq ov (car ovs))
940 (when (overlay-get ov 'wl-message-header-narrowing)
941 (setq hn-ovs (cons ov hn-ovs)))
942 (setq ovs (cdr ovs)))
945 (delete-overlay (car hn-ovs))
946 (setq hn-ovs (cdr hn-ovs)))
947 (wl-message-header-narrowing))))))
950 (product-provide (provide 'wl-message) (require 'wl-version))
952 ;;; wl-message.el ends here