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.
31 (eval-when-compile (require 'cl))
34 (require 'wl-highlight)
42 (defalias-maybe 'event-window 'ignore)
43 (defalias-maybe 'posn-window 'ignore)
44 (defalias-maybe 'event-start 'ignore)
45 (defalias-maybe 'mime-open-entity 'ignore)
46 (defalias-maybe 'itimer-function 'ignore)
47 (defalias-maybe 'delete-itimer 'ignore)
48 (defvar-maybe itimer-list))
50 (defvar wl-message-buffer-prefetch-get-next-function
51 'wl-summary-default-get-next-msg)
53 (defvar wl-message-buffer-prefetch-debug nil)
54 (defvar wl-message-buffer-prefetch-timer nil)
56 (defvar wl-message-buffer nil) ; message buffer.
58 (defvar wl-message-buffer-cur-folder nil)
59 (defvar wl-message-buffer-cur-number nil)
60 (defvar wl-message-buffer-cur-display-type nil)
61 (defvar wl-message-buffer-cur-summary-buffer nil)
62 (defvar wl-message-buffer-require-all-header nil)
63 (defvar wl-message-buffer-original-buffer nil) ; original buffer.
64 (defvar wl-message-buffer-mode-line-formatter nil)
65 (defvar wl-message-buffer-flag-indicator nil)
66 (defvar wl-message-buffer-mime-entity nil)
68 (make-variable-buffer-local 'wl-message-buffer-cur-folder)
69 (make-variable-buffer-local 'wl-message-buffer-cur-number)
70 (make-variable-buffer-local 'wl-message-buffer-cur-display-type)
71 (make-variable-buffer-local 'wl-message-buffer-cur-summary-buffer)
72 (make-variable-buffer-local 'wl-message-buffer-require-all-header)
73 (make-variable-buffer-local 'wl-message-buffer-original-buffer)
74 (make-variable-buffer-local 'wl-message-buffer-mode-line-formatter)
75 (make-variable-buffer-local 'wl-message-buffer-flag-indicator)
76 (make-variable-buffer-local 'wl-message-buffer-mime-entity)
78 (defvar wl-fixed-window-configuration nil)
80 (defvar wl-message-buffer-cache-size 10) ; At least 1.
82 ;;; Message buffer cache.
84 (defvar wl-message-buffer-cache nil
85 "Message cache. (old ... new) order alist.
86 With association ((\"folder\" message \"message-id\") . cache-buffer).")
88 (defmacro wl-message-buffer-cache-buffer-get (entry)
91 (defmacro wl-message-buffer-cache-folder-get (entry)
92 (` (car (car (, entry)))))
94 (defmacro wl-message-buffer-cache-message-get (entry)
95 (` (cdr (car (, entry)))))
97 (defmacro wl-message-buffer-cache-entry-make (key buf)
98 (` (cons (, key) (, buf))))
100 (defmacro wl-message-buffer-cache-hit (key)
101 "Return value assosiated with key."
102 (` (wl-message-buffer-cache-buffer-get
103 (assoc (, key) wl-message-buffer-cache))))
105 (defun wl-message-buffer-cache-sort (entry)
106 "Move ENTRY to the top of `wl-message-buffer-cache'."
107 (setq wl-message-buffer-cache
108 (cons entry (delete entry wl-message-buffer-cache))))
109 ; (let* ((pointer (cons nil wl-message-buffer-cache))
111 ; (while (cdr pointer)
112 ; (if (equal (car (cdr pointer)) entry)
113 ; (setcdr pointer (cdr (cdr pointer)))
114 ; (setq pointer (cdr pointer))))
115 ; (setcdr pointer (list entry))
116 ; (setq wl-message-buffer-cache (cdr top))))
118 (defconst wl-original-message-buffer-name " *Original*")
120 (defun wl-original-message-mode ()
121 "A major mode for original message buffer."
122 (setq major-mode 'wl-original-message-mode)
123 (setq buffer-read-only t)
124 (set-buffer-multibyte nil)
125 (setq mode-name "Wanderlust original message"))
127 (defun wl-original-message-buffer-get (name)
128 "Get original message buffer for NAME.
129 If original message buffer already exists, it is re-used."
130 (let* ((name (concat wl-original-message-buffer-name name))
131 (buffer (get-buffer name)))
132 (unless (and buffer (buffer-live-p buffer))
133 (with-current-buffer (setq buffer (get-buffer-create name))
134 (wl-original-message-mode)))
137 (defun wl-message-buffer-create ()
138 "Create a new message buffer."
139 (let* ((buffer (generate-new-buffer wl-message-buffer-name))
140 (name (buffer-name buffer)))
141 (with-current-buffer buffer
142 (setq wl-message-buffer-original-buffer
143 (wl-original-message-buffer-get name))
144 (when wl-message-use-header-narrowing
145 (wl-message-header-narrowing-setup))
146 (run-hooks 'wl-message-buffer-created-hook))
149 (defun wl-message-buffer-cache-add (key)
150 "Add (KEY . buf) to the top of `wl-message-buffer-cache'.
151 Return its cache buffer."
152 (let ((len (length wl-message-buffer-cache))
154 (if (< len wl-message-buffer-cache-size)
155 (setq buf (wl-message-buffer-create))
156 (let ((entry (nth (1- len) wl-message-buffer-cache)))
158 (setq buf (wl-message-buffer-cache-buffer-get entry)))
159 (setcdr (nthcdr (- len 2) wl-message-buffer-cache) nil)
160 (setq wl-message-buffer-cache (delq entry wl-message-buffer-cache))
161 (setq buf (wl-message-buffer-create)))))
162 (setq wl-message-buffer-cache
163 (cons (wl-message-buffer-cache-entry-make key buf)
164 wl-message-buffer-cache))
167 (defun wl-message-buffer-cache-delete (&optional key)
168 "Delete the most recent cache entry"
170 (setq wl-message-buffer-cache
171 (delq (assoc key wl-message-buffer-cache)
172 wl-message-buffer-cache))
173 (let ((buf (wl-message-buffer-cache-buffer-get
174 (car wl-message-buffer-cache))))
175 (setq wl-message-buffer-cache
176 (nconc (cdr wl-message-buffer-cache)
177 (list (wl-message-buffer-cache-entry-make nil buf)))))))
179 (defun wl-message-buffer-cache-clean-up ()
180 "A function to flush all decoded messages in cache list."
182 (if (and (eq major-mode 'wl-summary-mode)
184 (get-buffer-window wl-message-buffer))
185 (delete-window (get-buffer-window wl-message-buffer)))
186 (wl-kill-buffers (regexp-quote wl-message-buffer-name))
187 (setq wl-message-buffer-cache nil))
189 ;;; Message buffer handling from summary buffer.
191 (defun wl-message-buffer-window ()
192 "Get message buffer window if any."
193 (let* ((start-win (selected-window))
197 (setq cur-win (next-window cur-win))
198 (with-current-buffer (window-buffer cur-win)
199 (if (or (eq major-mode 'wl-message-mode)
200 (eq major-mode 'mime-view-mode))
201 (throw 'found cur-win)))
202 (not (eq cur-win start-win)))))))
204 (defun wl-message-select-buffer (buffer)
205 "Select BUFFER as a message buffer."
206 (let ((window (get-buffer-window buffer))
207 (sum (car wl-message-window-size))
208 (mes (cdr wl-message-window-size))
211 (not (eq (save-excursion (set-buffer (window-buffer window))
212 wl-message-buffer-cur-summary-buffer)
214 (delete-window window)
215 (run-hooks 'wl-message-window-deleted-hook)
218 (select-window window)
219 (when wl-fixed-window-configuration
220 (delete-other-windows)
221 (and wl-stay-folder-window
222 (wl-summary-toggle-disp-folder)))
223 ;; There's no buffer window. Search for message window and snatch it.
224 (if (setq window (wl-message-buffer-window))
225 (select-window window)
226 (setq whi (1- (window-height)))
229 (let ((total (+ sum mes)))
230 (setq sum (max window-min-height (/ (* whi sum) total)))
231 (setq mes (max window-min-height (/ (* whi mes) total))))
232 (if (< whi (+ sum mes))
233 (enlarge-window (- (+ sum mes) whi)))))
234 (split-window (get-buffer-window (current-buffer)) sum)
236 (switch-to-buffer buffer)))
238 (defun wl-message-narrow-to-page (&optional arg)
240 If ARG is specified, narrow to ARGth page."
242 (setq arg (if arg (prefix-numeric-value arg) 0))
245 (forward-page -1) ; Beginning of current page.
247 (goto-char (point-min))))
248 (forward-char 1) ; for compatibility with emacs-19.28 and emacs-19.29
251 ((> arg 0) (forward-page arg))
252 ((< arg 0) (forward-page (1- arg))))
255 (narrow-to-region (point)
258 (if (and (eolp) (not (bobp)))
262 (defun wl-message-prev-page (&optional lines)
263 "Scroll down current message by LINES.
264 Returns non-nil if top of message."
267 (save-selected-window
268 (unless (eq major-mode 'mime-view-mode)
269 (when (buffer-live-p wl-message-buffer)
270 (wl-message-select-buffer wl-message-buffer)))
271 (move-to-window-line 0)
272 (if (and wl-break-pages
274 (not (setq real-top (save-restriction (widen) (bobp)))))
276 (wl-message-narrow-to-page -1)
277 (goto-char (point-max))
281 (scroll-down (or lines wl-message-scroll-amount))
285 (let ((f (assq (mime-preview-original-major-mode)
286 mime-preview-over-to-previous-method-alist)))
287 (if f (funcall (cdr f))))))
290 (defun wl-message-next-page (&optional lines)
291 "Scroll up current message by LINES.
292 Returns non-nil if bottom of message."
295 (save-selected-window
296 (unless (eq major-mode 'mime-view-mode)
297 (when (buffer-live-p wl-message-buffer)
298 (wl-message-select-buffer wl-message-buffer)))
299 (move-to-window-line -1)
302 (and (pos-visible-in-window-p)
304 (if (or (null wl-break-pages)
307 (widen) (forward-line) (eobp))))
309 (wl-message-narrow-to-page 1)
312 (static-if (boundp 'window-pixel-scroll-increment)
313 ;; XEmacs 21.2.20 and later.
314 (let (window-pixel-scroll-increment)
315 (scroll-up (or lines wl-message-scroll-amount)))
316 (scroll-up (or lines wl-message-scroll-amount)))
318 (goto-char (point-max))))
321 (let ((f (assq (mime-preview-original-major-mode)
322 mime-preview-over-to-next-method-alist)))
323 (if f (funcall (cdr f))))))
327 (defun wl-message-follow-current-entity (buffer)
328 "Follow to current message."
329 (wl-draft-reply (wl-message-get-original-buffer)
330 nil wl-message-buffer-cur-summary-buffer) ; reply to all
331 (let ((mail-reply-buffer buffer))
332 (wl-draft-yank-from-mail-reply-buffer nil)))
336 (defun wl-message-mode ()
337 "A major mode for message displaying."
339 (setq major-mode 'wl-message-mode)
340 (setq buffer-read-only t)
341 (setq mode-name "Message"))
343 (defun wl-message-exit ()
344 "Move to summary buffer or mother buffer."
346 (let (summary-buf summary-win mother-buffer)
347 (cond ((setq summary-buf wl-message-buffer-cur-summary-buffer)
348 (if (setq summary-win (get-buffer-window summary-buf))
349 (select-window summary-win)
350 (switch-to-buffer summary-buf)
351 (wl-message-select-buffer wl-message-buffer)
352 (select-window (get-buffer-window summary-buf))))
353 ((setq mother-buffer mime-mother-buffer)
354 (kill-buffer (current-buffer))
355 (switch-to-buffer mother-buffer)))
356 (run-hooks 'wl-message-exit-hook)))
358 (defun wl-message-toggle-disp-summary ()
360 (let ((summary-buf (get-buffer wl-message-buffer-cur-summary-buffer))
363 (buffer-live-p summary-buf))
364 (if (setq summary-win (get-buffer-window summary-buf))
365 (delete-window summary-win)
366 (switch-to-buffer summary-buf)
367 (wl-message-select-buffer wl-message-buffer))
368 (wl-summary-goto-folder-subr wl-message-buffer-cur-folder 'no-sync
371 (let ((sum-buf (current-buffer)))
372 (wl-message-select-buffer wl-message-buffer)
373 (setq wl-message-buffer-cur-summary-buffer sum-buf)))))
375 (defun wl-message-get-original-buffer ()
376 "Get original buffer for current message buffer."
377 (if (buffer-live-p wl-message-buffer-original-buffer)
378 wl-message-buffer-original-buffer
379 (wl-original-message-buffer-get (buffer-name (current-buffer)))))
381 (defun wl-message-add-buttons-to-body (start end)
384 (narrow-to-region start end)
385 (let ((case-fold-search t)
386 (alist wl-message-body-button-alist)
389 (setq entry (car alist)
391 (goto-char (point-min))
392 (while (re-search-forward (car entry) (+ (point) (nth 4 entry)) t)
393 (unless (get-text-property (point) 'keymap)
394 (wl-message-add-button
395 (match-beginning (nth 1 entry))
396 (match-end (nth 1 entry))
398 (match-string (nth 3 entry))))))))))
400 (defun wl-message-add-buttons-to-header (start end)
403 (narrow-to-region start end)
404 (let ((case-fold-search t)
405 (alist wl-message-header-button-alist)
408 (setq entry (car alist)
410 (goto-char (point-min))
411 (while (re-search-forward (car entry) nil t)
412 (setq start (match-beginning 0)
413 end (if (re-search-forward "^[^ \t]" nil t)
417 (while (re-search-forward (nth 1 entry) end t)
418 (wl-message-add-button
419 (match-beginning (nth 2 entry))
420 (match-end (nth 2 entry))
421 (nth 3 entry) (match-string (nth 4 entry))))
422 (goto-char end)))))))
424 ;; display-type object definition.
425 (defun wl-message-make-display-type (mime header)
428 (setq symbol (intern (format "%s-%s-header" mime header)))
430 'wl-message-display-type
431 (list :mime mime :header header)))))
433 (defun wl-message-display-type-property (display-type prop)
434 (plist-get (get display-type 'wl-message-display-type) prop))
436 (defun wl-message-mime-analysis-p (display-type &optional header-or-body)
437 (let ((mode (wl-message-display-type-property display-type :mime)))
440 (memq mode '(mime header-only)))
444 (defun wl-message-display-all-header-p (display-type)
445 (eq (wl-message-display-type-property display-type :header) 'all))
447 (defun wl-message-display-no-merge-p (display-type)
448 (eq (wl-message-display-type-property display-type :mime) 'no-merge))
450 (defun wl-message-buffer-display-type (&optional message-buffer)
452 (with-current-buffer message-buffer
453 wl-message-buffer-cur-display-type)
454 wl-message-buffer-cur-display-type))
456 (defun wl-message-redisplay (folder number display-type &optional force-reload)
457 (let* ((default-mime-charset wl-mime-charset)
458 (buffer-read-only nil)
459 (summary-buf (current-buffer))
460 message-buf entity summary-win flags)
461 (setq buffer-read-only nil)
462 (setq wl-message-buffer (wl-message-buffer-display
463 folder number display-type force-reload))
464 (setq message-buf wl-message-buffer)
465 (wl-message-select-buffer wl-message-buffer)
467 (set-buffer message-buf)
468 (wl-deactivate-region)
469 (make-local-variable 'truncate-partial-width-windows)
470 (setq truncate-partial-width-windows nil)
471 (setq truncate-lines wl-message-truncate-lines)
472 (setq buffer-read-only nil)
473 (setq wl-message-buffer-cur-summary-buffer summary-buf)
474 (setq wl-message-buffer-cur-folder (elmo-folder-name-internal folder))
475 (setq wl-message-buffer-cur-number number)
476 (setq wl-message-buffer-flag-indicator
477 (if (setq flags (elmo-get-global-flags (elmo-message-flags
479 (let ((fl wl-summary-flag-alist)
480 flag-strings flag-string face)
482 (when (memq (car (car fl)) flags)
483 (setq flag-string (capitalize
484 (symbol-name (car (car fl))))
485 flags (delq (car (car fl)) flags))
486 (when (facep (setq face
489 "wl-highlight-summary-%s-flag-face"
491 (put-text-property 0 (length flag-string)
492 'face face flag-string))
493 (setq flag-strings (nconc flag-strings
494 (list flag-string))))
498 (mapcar (lambda (flag)
499 (capitalize (symbol-name flag)))
501 (concat " (" (mapconcat 'identity flag-strings ", ") ")"))
503 (wl-line-formatter-setup
504 wl-message-buffer-mode-line-formatter
505 wl-message-mode-line-format
506 wl-message-mode-line-format-spec-alist)
507 (setq mode-line-buffer-identification
508 (funcall wl-message-buffer-mode-line-formatter))
510 ; (when wl-highlight-body-too
511 ; (wl-highlight-body))
512 (ignore-errors (wl-message-narrow-to-page))
513 (goto-char (point-min))
514 (when (re-search-forward "^$" nil t)
515 (wl-message-add-buttons-to-header (point-min) (point))
516 (wl-message-add-buttons-to-body (point) (point-max)))
517 (when (and wl-message-use-header-narrowing
518 (not (wl-message-display-all-header-p display-type)))
519 (wl-message-header-narrowing))
520 (goto-char (point-min))
521 (ignore-errors (run-hooks 'wl-message-redisplay-hook))
522 ;; go back to summary mode
523 (set-buffer-modified-p nil)
524 (setq buffer-read-only t)
525 (set-buffer summary-buf)
526 (setq summary-win (get-buffer-window summary-buf))
527 (if (window-live-p summary-win)
528 (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
534 (elmo-message-field folder number 'message-id)))
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 (with-current-buffer hit
548 ;; Rewind to the top page
550 (goto-char (point-min))
551 (ignore-errors (wl-message-narrow-to-page))
552 (setq entity wl-message-buffer-mime-entity)
553 (unless (eq wl-message-buffer-cur-display-type display-type)
554 (setq redisplay t))))
555 ;; delete tail and add new to the top.
556 (setq hit (wl-message-buffer-cache-add (list fname number msg-id)))
558 (when (or force-reload redisplay)
560 (with-current-buffer hit
561 (when (or force-reload
563 (not (elmo-mime-entity-display-p
565 (if (wl-message-mime-analysis-p display-type)
568 (if (wl-message-display-no-merge-p display-type)
569 (elmo-mime-entity-reassembled-p entity)
570 (elmo-mime-entity-fragment-p entity)))
571 (setq entity (elmo-message-mime-entity
574 (wl-message-get-original-buffer)
575 (and wl-message-auto-reassemble-message/partial
576 (not (wl-message-display-no-merge-p
580 (not (wl-message-mime-analysis-p display-type)))))
582 (error "Cannot display message %s/%s" fname number))
583 (wl-message-display-internal entity display-type))
585 (wl-message-buffer-cache-delete)
586 (error "Display message %s/%s is quitted" fname number))
588 (wl-message-buffer-cache-delete)
589 (signal (car err) (cdr err))
590 nil))) ;; will not be used
593 (defun wl-message-display-internal (entity display-type)
594 (let ((default-mime-charset wl-mime-charset)
595 (elmo-mime-charset wl-mime-charset)
596 (wl-message-buffer-require-all-header
597 (wl-message-display-all-header-p display-type)))
598 (if (wl-message-mime-analysis-p display-type)
599 (elmo-mime-entity-display entity
601 'wl-original-message-mode
602 (wl-message-define-keymap))
603 (let* ((elmo-mime-display-header-analysis
604 (wl-message-mime-analysis-p display-type 'header))
605 (wl-highlight-x-face-function
606 (and elmo-mime-display-header-analysis
607 wl-highlight-x-face-function)))
608 (elmo-mime-entity-display-as-is entity
610 'wl-original-message-mode
611 (wl-message-define-keymap))
612 (let (buffer-read-only)
613 (wl-highlight-message (point-min) (point-max) t))))
614 (setq wl-message-buffer-cur-display-type display-type
615 wl-message-buffer-mime-entity entity)
616 (run-hooks 'wl-message-display-internal-hook)
617 (setq buffer-read-only t)))
619 (defun wl-message-buffer-prefetch-p (folder &optional number)
620 (and (or (not number)
621 (elmo-message-file-p folder number)
622 (let ((size (elmo-message-field folder number 'size)))
623 (not (and (integerp size)
624 wl-message-buffer-prefetch-threshold
625 (>= size wl-message-buffer-prefetch-threshold)))))
627 (elmo-folder-plugged-p folder)
628 (elmo-file-cache-exists-p
629 (elmo-message-field folder number 'message-id)))
631 ((eq wl-message-buffer-prefetch-folder-type-list t)
633 ((and number wl-message-buffer-prefetch-folder-type-list)
634 (memq (elmo-folder-type-internal
635 (elmo-message-folder folder number))
636 wl-message-buffer-prefetch-folder-type-list))
637 (wl-message-buffer-prefetch-folder-type-list
638 (let ((list wl-message-buffer-prefetch-folder-type-list)
641 (while (setq type (pop list))
642 (if (elmo-folder-contains-type folder type)
643 (throw 'done t)))))))
645 ((consp wl-message-buffer-prefetch-folder-list)
646 (wl-string-match-member (elmo-folder-name-internal folder)
647 wl-message-buffer-prefetch-folder-list))
648 (t wl-message-buffer-prefetch-folder-list)))))
650 (defsubst wl-message-buffer-prefetch-clear-timer ()
651 ;;; cannot use for the bug of fsf-compat package (1.09).
652 ;;; (cancel-function-timers 'wl-message-buffer-prefetch-subr)
653 (if (fboundp 'run-with-idle-timer)
654 (if (featurep 'xemacs)
655 (let ((p itimer-list))
657 (if (eq 'wl-message-buffer-prefetch-subr
658 (itimer-function (car p)))
659 (delete-itimer (car p)))
661 ;; FSF Emacs is correct
662 (cancel-function-timers 'wl-message-buffer-prefetch-subr))))
664 (defsubst wl-message-buffer-prefetch-set-timer (folder number count
666 (if (not (fboundp 'run-with-idle-timer))
667 (when (sit-for wl-message-buffer-prefetch-idle-time)
668 (wl-message-buffer-prefetch-subr
669 folder number count summary charset))
671 wl-message-buffer-prefetch-idle-time
673 'wl-message-buffer-prefetch-subr
674 folder number count summary charset)))
676 (defvar wl-message-buffer-prefetch-move-spec-alist nil)
678 (defun wl-message-buffer-prefetch-get-next (folder number summary)
679 (if (buffer-live-p summary)
680 (with-current-buffer summary
681 (let ((wl-summary-move-spec-alist
682 (or wl-message-buffer-prefetch-move-spec-alist
683 wl-summary-move-spec-alist))
685 (while (and (setq next (funcall
686 wl-message-buffer-prefetch-get-next-function
688 (not (wl-message-buffer-prefetch-p folder next))))
691 (defun wl-message-buffer-prefetch (folder number count
692 &optional summary charset)
693 (let* ((summary (or summary (get-buffer wl-summary-buffer-name)))
695 (when (and (> count 0)
696 (wl-message-buffer-prefetch-p folder))
697 (unless (wl-message-buffer-prefetch-p folder number)
699 (wl-message-buffer-prefetch-get-next folder number summary)))
701 (wl-message-buffer-prefetch-clear-timer)
702 (wl-message-buffer-prefetch-set-timer
703 folder num count summary charset)))))
705 (defun wl-message-buffer-prefetch-next (folder number count
706 &optional summary charset)
707 (let* ((summary (or summary (get-buffer wl-summary-buffer-name)))
709 (when (and (> count 0)
710 (wl-message-buffer-prefetch-p folder))
711 (setq next (wl-message-buffer-prefetch-get-next folder number summary))
713 (wl-message-buffer-prefetch-clear-timer)
714 (wl-message-buffer-prefetch-set-timer
715 folder next count summary charset)))))
717 (defun wl-message-buffer-prefetch-subr (folder number count summary charset)
718 (if (buffer-live-p summary)
719 (with-current-buffer summary
722 (>= (setq count (- count 1)) 0)
723 (string= (elmo-folder-name-internal folder)
724 (wl-summary-buffer-folder-name)))
725 (let* ((wl-mime-charset charset)
726 (default-mime-charset charset)
727 (message-id (elmo-message-field folder number 'message-id))
728 (key (list (elmo-folder-name-internal folder)
730 (hit (wl-message-buffer-cache-hit key))
731 (display-type (wl-message-make-display-type
732 wl-summary-buffer-display-mime-mode
733 wl-summary-buffer-display-header-mode))
734 time1 time2 sec micro)
735 (when wl-message-buffer-prefetch-debug
736 (message "%d: count %d, hit %s" number count (buffer-name hit)))
737 (if (and hit (buffer-live-p hit))
739 (wl-message-buffer-cache-sort
740 (wl-message-buffer-cache-entry-make key hit))
741 (wl-message-buffer-prefetch-subr
743 (wl-message-buffer-prefetch-get-next
744 folder number summary)
745 count summary charset))
747 (when wl-message-buffer-prefetch-debug
748 (setq time1 (current-time))
749 (message "Prefetching %d..." number))
750 (wl-message-buffer-display folder number
751 display-type nil 'unread)
752 (when (elmo-message-use-cache-p folder number)
753 (elmo-message-set-cached folder number t))
754 (when wl-message-buffer-prefetch-debug
755 (setq time2 (current-time))
756 (setq sec (- (nth 1 time2)(nth 1 time1)))
757 (setq micro (- (nth 2 time2)(nth 2 time1)))
758 (setq micro (+ micro (* 1000000 sec)))
759 (message "Prefetching %d...done(%f msec)."
764 (wl-message-buffer-prefetch-set-timer
766 (wl-message-buffer-prefetch-get-next
767 folder number summary)
768 count summary charset)
773 (when wl-message-buffer-prefetch-debug
774 (message "Buffer Cached Messages: %s"
777 (if (numberp (nth 1 (car cache)))
780 (elmo-folder-name-internal folder))
783 (format "*%d" (nth 1 (car cache))))
785 wl-message-buffer-cache " "))) )))
787 (defvar wl-message-button-map (make-sparse-keymap))
789 (defun wl-message-add-button (from to function &optional data)
790 "Create a button between FROM and TO with callback FUNCTION and DATA."
793 (nconc (list 'wl-message-button-callback function)
795 (list 'wl-message-button-data data))))
796 (let ((ov (make-overlay from to)))
797 (overlay-put ov 'mouse-face 'highlight)
798 (overlay-put ov 'local-map wl-message-button-map)
799 (overlay-put ov 'evaporate t)))
801 (defun wl-message-button-dispatcher (event)
802 "Select the button under point."
804 (mouse-set-point event)
805 (let ((callback (get-text-property (point) 'wl-message-button-callback))
806 (data (get-text-property (point) 'wl-message-button-data)))
808 (funcall callback data)
809 (wl-message-button-dispatcher-internal event))))
811 (defun wl-message-button-refer-article (data)
812 "Read article specified by Message-ID DATA at point."
813 (switch-to-buffer-other-window
814 wl-message-buffer-cur-summary-buffer)
815 (if (wl-summary-jump-to-msg-by-message-id data)
816 (wl-summary-redisplay)))
818 (defun wl-message-uu-substring (buf outbuf &optional first last)
821 (search-forward "\n\n")
823 ep filename case-fold-search)
827 (if (re-search-forward "^begin[ \t]+[0-9]+[ \t]+\\([^ ].*\\)" nil t)
828 (setq filename (buffer-substring (match-beginning 1)(match-end 1)))
830 (re-search-forward "^M.*$" nil t)) ; uuencoded string
833 (goto-char (point-max))
835 (re-search-backward "^end" sp t)
836 (re-search-backward "^M.*$" sp t)) ; uuencoded string
840 (goto-char (point-max))
841 (insert-buffer-substring buf sp ep)
845 ;;; Header narrowing courtesy of Hideyuki Shirai.
846 (defun wl-message-header-narrowing ()
848 (unless (eq this-command 'wl-summary-redisplay-all-header)
851 (goto-char (point-min))
852 (if (re-search-forward "^$" nil t)
854 (goto-char (point-max)))
855 (narrow-to-region (point-min) (point))
856 (let ((fields wl-message-header-narrowing-fields))
858 (wl-message-header-narrowing-1 (concat "^" (car fields) ":"))
859 (setq fields (cdr fields))))))))
861 (defvar wl-message-header-narrowing-map (make-sparse-keymap))
862 (define-key wl-message-header-narrowing-map [mouse-2]
863 'wl-message-header-narrowing-again-at-mouse)
865 (defvar wl-message-header-narrowing-widen-map (make-sparse-keymap))
866 (define-key wl-message-header-narrowing-widen-map [mouse-2]
867 'wl-message-header-narrowing-widen-at-mouse)
869 (defun wl-message-header-narrowing-again-at-mouse (event)
871 (save-window-excursion
873 (mouse-set-point event)
874 (wl-message-header-narrowing))))
876 (defun wl-message-header-narrowing-1 (hregexp)
877 (let ((case-fold-search t)
879 (goto-char (point-min))
880 (while (re-search-forward hregexp nil t)
881 (setq start (match-beginning 0))
883 (setq end (progn (while (looking-at "^[ \t]") (forward-line))
885 (line-end-position)))
886 (if (<= (count-lines start end) wl-message-header-narrowing-lines)
889 (forward-line (1- wl-message-header-narrowing-lines))
892 (unless (eq (get-char-property start 'invisible)
893 'wl-message-header-narrowing)
895 (let ((ovs (overlays-at start))
897 (while (and ovs (not (overlayp ov)))
898 (if (overlay-get (car ovs)
899 'wl-message-header-narrowing)
901 (setq ovs (cdr ovs)))
903 (make-overlay start end)))
904 (overlay-put ov 'wl-message-header-narrowing t)
905 (overlay-put ov 'evaporate t)
906 (overlay-put ov 'invisible 'wl-message-header-narrowing)
907 (overlay-put ov 'after-string
908 wl-message-header-narrowing-string))))))
910 (defun wl-message-header-narrowing-widen-at-mouse (event)
912 (save-selected-window
913 (select-window (posn-window (event-start event)))
914 (let* ((win (selected-window))
915 (wpos (window-start win))
916 (pos (mouse-set-point event))
917 (ovs (overlays-in (1- pos) (1+ pos))) ;; Uum...
919 (while (and ovs (not (overlayp ov)))
920 (when (overlay-get (car ovs) 'wl-message-header-narrowing)
922 (setq ovs (cdr ovs)))
924 (overlay-put ov 'face 'wl-message-header-narrowing-face)
925 (overlay-put ov 'local-map wl-message-header-narrowing-map)
926 (overlay-put ov 'invisible nil)
927 (overlay-put ov 'after-string nil))
928 (set-window-start win wpos))))
930 (defun wl-message-header-narrowing-setup ()
931 (when (boundp 'line-move-ignore-invisible)
932 (set (make-local-variable 'line-move-ignore-invisible) t))
933 (set-text-properties 0 (length wl-message-header-narrowing-string)
935 wl-message-header-narrowing-face
937 ,wl-message-header-narrowing-widen-map)
938 wl-message-header-narrowing-string))
940 (defun wl-message-header-narrowing-toggle ()
941 "Toggle header narrowing."
943 (when wl-message-use-header-narrowing
945 (goto-char (point-min))
946 (if (re-search-forward "^$" nil t)
948 (goto-char (point-max)))
949 (let ((ovs (overlays-in (point-min) (point)))
951 (while (setq ov (car ovs))
952 (when (overlay-get ov 'wl-message-header-narrowing)
953 (setq hn-ovs (cons ov hn-ovs)))
954 (setq ovs (cdr ovs)))
957 (delete-overlay (car hn-ovs))
958 (setq hn-ovs (cdr hn-ovs)))
959 (wl-message-header-narrowing))))))
962 (product-provide (provide 'wl-message) (require 'wl-version))
964 ;;; wl-message.el ends here