1 ;;; notmuch-tree.el --- displaying notmuch forests -*- lexical-binding: t -*-
3 ;; Copyright © Carl Worth
4 ;; Copyright © David Edmondson
5 ;; Copyright © Mark Walters
7 ;; This file is part of Notmuch.
9 ;; Notmuch is free software: you can redistribute it and/or modify it
10 ;; under the terms of the GNU General Public License as published by
11 ;; the Free Software Foundation, either version 3 of the License, or
12 ;; (at your option) any later version.
14 ;; Notmuch is distributed in the hope that it will be useful, but
15 ;; WITHOUT ANY WARRANTY; without even the implied warranty of
16 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 ;; General Public License for more details.
19 ;; You should have received a copy of the GNU General Public License
20 ;; along with Notmuch. If not, see <https://www.gnu.org/licenses/>.
22 ;; Authors: David Edmondson <dme@dme.org>
23 ;; Mark Walters <markwalters1009@gmail.com>
27 (eval-when-compile (require 'cl-lib))
31 (require 'notmuch-lib)
32 (require 'notmuch-query)
33 (require 'notmuch-show)
34 (require 'notmuch-tag)
35 (require 'notmuch-parser)
36 (require 'notmuch-jump)
38 (declare-function notmuch-search "notmuch"
39 (&optional query oldest-first target-thread target-line))
40 (declare-function notmuch-call-notmuch-process "notmuch" (&rest args))
41 (declare-function notmuch-read-query "notmuch" (prompt))
42 (declare-function notmuch-search-find-thread-id "notmuch" (&optional bare))
43 (declare-function notmuch-search-find-subject "notmuch" ())
45 ;; For `notmuch-tree-next-thread-from-search'.
46 (declare-function notmuch-search-next-thread "notmuch" ())
47 (declare-function notmuch-search-previous-thread "notmuch" ())
48 (declare-function notmuch-tree-from-search-thread "notmuch" ())
50 ;; the following variable is defined in notmuch.el
51 (defvar notmuch-search-query-string)
53 ;; this variable distinguishes the unthreaded display from the normal tree display
54 (defvar-local notmuch-tree-unthreaded nil
55 "A buffer local copy of argument unthreaded to the function notmuch-tree.")
59 (defgroup notmuch-tree nil
60 "Showing message and thread structure."
63 (defcustom notmuch-tree-show-out nil
64 "View selected messages in new window rather than split-pane."
68 (defcustom notmuch-unthreaded-show-out t
69 "View selected messages in new window rather than split-pane."
73 (defun notmuch-tree-show-out ()
74 (if notmuch-tree-unthreaded
75 notmuch-unthreaded-show-out
76 notmuch-tree-show-out))
78 (defcustom notmuch-tree-result-format
81 ((("tree" . "%s")("subject" . "%s")) ." %-54s ")
83 "Result formatting for tree view. Supported fields are: date,
84 authors, subject, tree, tags. Tree means the thread tree
85 box graphics. The field may also be a list in which case
86 the formatting rules are applied recursively and then the
87 output of all the fields in the list is inserted
88 according to format-string.
90 Note the author string should not contain
91 whitespace (put it in the neighbouring fields instead).
93 (setq notmuch-tree-result-format \(\(\"authors\" . \"%-40s\"\)
94 \(\"subject\" . \"%s\"\)\)\)"
95 :type '(alist :key-type (string) :value-type (string))
98 (defcustom notmuch-unthreaded-result-format
100 ("authors" . "%-20s")
101 ((("subject" . "%s")) ." %-54s ")
103 "Result formatting for unthreaded tree view. Supported fields are: date,
104 authors, subject, tree, tags. Tree means the thread tree
105 box graphics. The field may also be a list in which case
106 the formatting rules are applied recursively and then the
107 output of all the fields in the list is inserted
108 according to format-string.
110 Note the author string should not contain
111 whitespace (put it in the neighbouring fields instead).
113 (setq notmuch-tree-result-format \(\(\"authors\" . \"%-40s\"\)
114 \(\"subject\" . \"%s\"\)\)\)"
115 :type '(alist :key-type (string) :value-type (string))
116 :group 'notmuch-tree)
118 (defun notmuch-tree-result-format ()
119 (if notmuch-tree-unthreaded
120 notmuch-unthreaded-result-format
121 notmuch-tree-result-format))
124 ;;;; Faces for messages that match the query
126 (defface notmuch-tree-match-face
127 '((t :inherit default))
128 "Default face used in tree mode face for matching messages"
130 :group 'notmuch-faces)
132 (defface notmuch-tree-match-date-face
134 "Face used in tree mode for the date in messages matching the query."
136 :group 'notmuch-faces)
138 (defface notmuch-tree-match-author-face
141 (:foreground "OliveDrab1"))
144 (:foreground "dark blue"))
147 "Face used in tree mode for the date in messages matching the query."
149 :group 'notmuch-faces)
151 (defface notmuch-tree-match-subject-face
153 "Face used in tree mode for the subject in messages matching the query."
155 :group 'notmuch-faces)
157 (defface notmuch-tree-match-tree-face
159 "Face used in tree mode for the thread tree block graphics in messages matching the query."
161 :group 'notmuch-faces)
163 (defface notmuch-tree-match-tag-face
166 (:foreground "OliveDrab1"))
169 (:foreground "navy blue" :bold t))
172 "Face used in tree mode for tags in messages matching the query."
174 :group 'notmuch-faces)
176 ;;;; Faces for messages that do not match the query
178 (defface notmuch-tree-no-match-face
179 '((t (:foreground "gray")))
180 "Default face used in tree mode face for non-matching messages."
182 :group 'notmuch-faces)
184 (defface notmuch-tree-no-match-date-face
186 "Face used in tree mode for non-matching dates."
188 :group 'notmuch-faces)
190 (defface notmuch-tree-no-match-subject-face
192 "Face used in tree mode for non-matching subjects."
194 :group 'notmuch-faces)
196 (defface notmuch-tree-no-match-tree-face
198 "Face used in tree mode for the thread tree block graphics in messages matching the query."
200 :group 'notmuch-faces)
202 (defface notmuch-tree-no-match-author-face
204 "Face used in tree mode for the date in messages matching the query."
206 :group 'notmuch-faces)
208 (defface notmuch-tree-no-match-tag-face
210 "Face used in tree mode face for non-matching tags."
212 :group 'notmuch-faces)
216 (defvar-local notmuch-tree-previous-subject
217 "The subject of the most recent result shown during the async display.")
219 (defvar-local notmuch-tree-basic-query nil
220 "A buffer local copy of argument query to the function notmuch-tree.")
222 (defvar-local notmuch-tree-query-context nil
223 "A buffer local copy of argument query-context to the function notmuch-tree.")
225 (defvar-local notmuch-tree-target-msg nil
226 "A buffer local copy of argument target to the function notmuch-tree.")
228 (defvar-local notmuch-tree-open-target nil
229 "A buffer local copy of argument open-target to the function notmuch-tree.")
231 (defvar-local notmuch-tree-parent-buffer nil)
233 (defvar-local notmuch-tree-message-window nil
234 "The window of the message pane.
236 It is set in both the tree buffer and the child show buffer. It
237 is used to try and close the message pane when quitting tree view
238 or the child show buffer.")
239 (put 'notmuch-tree-message-window 'permanent-local t)
241 (defvar-local notmuch-tree-message-buffer nil
242 "The buffer name of the show buffer in the message pane.
244 This is used to try and make sure we don't close the message pane
245 if the user has loaded a different buffer in that window.")
246 (put 'notmuch-tree-message-buffer 'permanent-local t)
248 ;;; Tree wrapper commands
250 (defmacro notmuch-tree--define-do-in-message-window (name cmd)
251 "Define NAME as a command that calls CMD interactively in the message window.
252 If the message pane is closed then this command does nothing.
253 Avoid using this macro in new code; it will be removed."
255 ,(concat "(In message window) " (documentation cmd t))
257 (when (window-live-p notmuch-tree-message-window)
258 (with-selected-window notmuch-tree-message-window
259 (call-interactively #',cmd)))))
261 (notmuch-tree--define-do-in-message-window
262 notmuch-tree-previous-message-button
263 notmuch-show-previous-button)
264 (notmuch-tree--define-do-in-message-window
265 notmuch-tree-next-message-button
266 notmuch-show-next-button)
267 (notmuch-tree--define-do-in-message-window
268 notmuch-tree-toggle-message-process-crypto
269 notmuch-show-toggle-process-crypto)
271 (defun notmuch-tree--message-process-crypto ()
272 "Return value of `notmuch-show-process-crypto' in the message window.
273 If that window isn't alive, then return the current value.
274 Avoid using this function in new code; it will be removed."
275 (if (window-live-p notmuch-tree-message-window)
276 (with-selected-window notmuch-tree-message-window
277 notmuch-show-process-crypto)
278 notmuch-show-process-crypto))
280 (defmacro notmuch-tree--define-close-message-window-and (name cmd)
281 "Define NAME as a variant of CMD.
283 NAME determines the value of `notmuch-show-process-crypto' in the
284 message window, closes the window, and then call CMD interactively
285 with that value let-bound. If the message window does not exist,
286 then NAME behaves like CMD."
288 ,(concat "(Close message pane and) " (documentation cmd t))
290 (let ((notmuch-show-process-crypto
291 (notmuch-tree--message-process-crypto)))
292 (notmuch-tree-close-message-window)
293 (call-interactively #',cmd))))
295 (notmuch-tree--define-close-message-window-and
298 (notmuch-tree--define-close-message-window-and
299 notmuch-tree-new-mail
300 notmuch-mua-new-mail)
301 (notmuch-tree--define-close-message-window-and
302 notmuch-tree-jump-search
304 (notmuch-tree--define-close-message-window-and
305 notmuch-tree-forward-message
306 notmuch-show-forward-message)
307 (notmuch-tree--define-close-message-window-and
308 notmuch-tree-reply-sender
309 notmuch-show-reply-sender)
310 (notmuch-tree--define-close-message-window-and
313 (notmuch-tree--define-close-message-window-and
314 notmuch-tree-view-raw-message
315 notmuch-show-view-raw-message)
319 (defvar notmuch-tree-mode-map
320 (let ((map (make-sparse-keymap)))
321 (set-keymap-parent map notmuch-common-keymap)
322 ;; These bindings shadow common bindings with variants
323 ;; that additionally close the message window.
324 (define-key map [remap notmuch-bury-or-kill-this-buffer] 'notmuch-tree-quit)
325 (define-key map [remap notmuch-search] 'notmuch-tree-to-search)
326 (define-key map [remap notmuch-help] 'notmuch-tree-help)
327 (define-key map [remap notmuch-mua-new-mail] 'notmuch-tree-new-mail)
328 (define-key map [remap notmuch-jump-search] 'notmuch-tree-jump-search)
330 (define-key map "S" 'notmuch-search-from-tree-current-query)
331 (define-key map "U" 'notmuch-unthreaded-from-tree-current-query)
332 (define-key map "Z" 'notmuch-tree-from-unthreaded-current-query)
334 ;; these use notmuch-show functions directly
335 (define-key map "|" 'notmuch-show-pipe-message)
336 (define-key map "w" 'notmuch-show-save-attachments)
337 (define-key map "v" 'notmuch-show-view-all-mime-parts)
338 (define-key map "c" 'notmuch-show-stash-map)
339 (define-key map "b" 'notmuch-show-resend-message)
341 ;; these apply to the message pane
342 (define-key map (kbd "M-TAB") 'notmuch-tree-previous-message-button)
343 (define-key map (kbd "<backtab>") 'notmuch-tree-previous-message-button)
344 (define-key map (kbd "TAB") 'notmuch-tree-next-message-button)
345 (define-key map "$" 'notmuch-tree-toggle-message-process-crypto)
347 ;; bindings from show (or elsewhere) but we close the message pane first.
348 (define-key map "f" 'notmuch-tree-forward-message)
349 (define-key map "r" 'notmuch-tree-reply-sender)
350 (define-key map "R" 'notmuch-tree-reply)
351 (define-key map "V" 'notmuch-tree-view-raw-message)
353 ;; The main tree view bindings
354 (define-key map (kbd "RET") 'notmuch-tree-show-message)
355 (define-key map [mouse-1] 'notmuch-tree-show-message)
356 (define-key map "x" 'notmuch-tree-archive-message-then-next-or-exit)
357 (define-key map "X" 'notmuch-tree-archive-thread-then-exit)
358 (define-key map "A" 'notmuch-tree-archive-thread-then-next)
359 (define-key map "a" 'notmuch-tree-archive-message-then-next)
360 (define-key map "z" 'notmuch-tree-to-tree)
361 (define-key map "n" 'notmuch-tree-next-matching-message)
362 (define-key map "p" 'notmuch-tree-prev-matching-message)
363 (define-key map "N" 'notmuch-tree-next-message)
364 (define-key map "P" 'notmuch-tree-prev-message)
365 (define-key map (kbd "M-p") 'notmuch-tree-prev-thread)
366 (define-key map (kbd "M-n") 'notmuch-tree-next-thread)
367 (define-key map "k" 'notmuch-tag-jump)
368 (define-key map "-" 'notmuch-tree-remove-tag)
369 (define-key map "+" 'notmuch-tree-add-tag)
370 (define-key map "*" 'notmuch-tree-tag-thread)
371 (define-key map " " 'notmuch-tree-scroll-or-next)
372 (define-key map (kbd "DEL") 'notmuch-tree-scroll-message-window-back)
373 (define-key map "e" 'notmuch-tree-resume-message)
375 "Keymap for \"notmuch tree\" buffers.")
377 ;;; Message properties
379 (defun notmuch-tree-get-message-properties ()
380 "Return the properties of the current message as a plist.
382 Some useful entries are:
383 :headers - Property list containing the headers :Date, :Subject, :From, etc.
384 :tags - Tags for this message."
387 (get-text-property (point) :notmuch-message-properties)))
389 (defun notmuch-tree-set-message-properties (props)
392 (put-text-property (point)
394 :notmuch-message-properties props)))
396 (defun notmuch-tree-set-prop (prop val &optional props)
397 (let ((inhibit-read-only t)
399 (notmuch-tree-get-message-properties))))
400 (plist-put props prop val)
401 (notmuch-tree-set-message-properties props)))
403 (defun notmuch-tree-get-prop (prop &optional props)
404 (let ((props (or props
405 (notmuch-tree-get-message-properties))))
406 (plist-get props prop)))
408 (defun notmuch-tree-set-tags (tags)
409 "Set the tags of the current message."
410 (notmuch-tree-set-prop :tags tags))
412 (defun notmuch-tree-get-tags ()
413 "Return the tags of the current message."
414 (notmuch-tree-get-prop :tags))
416 (defun notmuch-tree-get-message-id (&optional bare)
417 "Return the message id of the current message."
418 (let ((id (notmuch-tree-get-prop :id)))
422 (notmuch-id-to-query id))
425 (defun notmuch-tree-get-match ()
426 "Return whether the current message is a match."
428 (notmuch-tree-get-prop :match))
432 (defun notmuch-tree-refresh-result ()
433 "Redisplay the current message line.
435 This redisplays the current line based on the messages
436 properties (as they are now). This is used when tags are
438 (let ((init-point (point))
439 (end (line-end-position))
440 (msg (notmuch-tree-get-message-properties))
441 (inhibit-read-only t))
443 ;; This is a little tricky: we override
444 ;; notmuch-tree-previous-subject to get the decision between
445 ;; ... and a subject right and it stops notmuch-tree-insert-msg
446 ;; from overwriting the buffer local copy of
447 ;; notmuch-tree-previous-subject if this is called while the
448 ;; buffer is displaying.
449 (let ((notmuch-tree-previous-subject
450 (notmuch-tree-get-prop :previous-subject)))
451 (delete-region (point) (1+ (line-end-position)))
452 (notmuch-tree-insert-msg msg))
453 (let ((new-end (line-end-position)))
454 (goto-char (if (= init-point end)
456 (min init-point (- new-end 1)))))))
458 (defun notmuch-tree-tag-update-display (&optional tag-changes)
459 "Update display for TAG-CHANGES to current message.
461 Updates the message in the message pane if appropriate, but does
462 NOT change the database."
463 (let* ((current-tags (notmuch-tree-get-tags))
464 (new-tags (notmuch-update-tags current-tags tag-changes))
465 (tree-msg-id (notmuch-tree-get-message-id)))
466 (unless (equal current-tags new-tags)
467 (notmuch-tree-set-tags new-tags)
468 (notmuch-tree-refresh-result)
469 (when (window-live-p notmuch-tree-message-window)
470 (with-selected-window notmuch-tree-message-window
471 (when (string= tree-msg-id (notmuch-show-get-message-id))
472 (notmuch-show-update-tags new-tags)))))))
474 ;;; Commands (and some helper functions used by them)
476 (defun notmuch-tree-tag (tag-changes)
477 "Change tags for the current message."
479 (list (notmuch-read-tag-changes (notmuch-tree-get-tags) "Tag message")))
480 (notmuch-tag (notmuch-tree-get-message-id) tag-changes)
481 (notmuch-tree-tag-update-display tag-changes))
483 (defun notmuch-tree-add-tag (tag-changes)
484 "Same as `notmuch-tree-tag' but sets initial input to '+'."
486 (list (notmuch-read-tag-changes (notmuch-tree-get-tags) "Tag message" "+")))
487 (notmuch-tree-tag tag-changes))
489 (defun notmuch-tree-remove-tag (tag-changes)
490 "Same as `notmuch-tree-tag' but sets initial input to '-'."
492 (list (notmuch-read-tag-changes (notmuch-tree-get-tags) "Tag message" "-")))
493 (notmuch-tree-tag tag-changes))
495 (defun notmuch-tree-resume-message ()
496 "Resume EDITING the current draft message."
498 (notmuch-tree-close-message-window)
499 (let ((id (notmuch-tree-get-message-id)))
501 (notmuch-draft-resume id)
502 (message "No message to resume!"))))
504 ;; The next two functions close the message window before calling
505 ;; notmuch-search or notmuch-tree but they do so after the user has
506 ;; entered the query (in case the user was basing the query on
507 ;; something in the message window).
509 (defun notmuch-tree-to-search ()
510 "Run \"notmuch search\" with the given `query' and display results."
512 (let ((query (notmuch-read-query "Notmuch search: ")))
513 (notmuch-tree-close-message-window)
514 (notmuch-search query)))
516 (defun notmuch-tree-to-tree ()
517 "Run a query and display results in tree view."
519 (let ((query (notmuch-read-query "Notmuch tree view search: ")))
520 (notmuch-tree-close-message-window)
521 (notmuch-tree query)))
523 (defun notmuch-tree-archive-thread-then-next ()
524 "Archive all messages in the current buffer, then show next thread from search."
526 (notmuch-tree-archive-thread)
527 (notmuch-tree-next-thread))
529 (defun notmuch-unthreaded-from-tree-current-query ()
530 "Switch from tree view to unthreaded view."
532 (unless notmuch-tree-unthreaded
533 (notmuch-tree-refresh-view 'unthreaded)))
535 (defun notmuch-tree-from-unthreaded-current-query ()
536 "Switch from unthreaded view to tree view."
538 (when notmuch-tree-unthreaded
539 (notmuch-tree-refresh-view 'tree)))
541 (defun notmuch-search-from-tree-current-query ()
542 "Call notmuch search with the current query."
544 (notmuch-tree-close-message-window)
545 (notmuch-search (notmuch-tree-get-query)))
547 (defun notmuch-tree-message-window-kill-hook ()
548 "Close the message pane when exiting the show buffer."
549 (let ((buffer (current-buffer)))
550 (when (and (window-live-p notmuch-tree-message-window)
551 (eq (window-buffer notmuch-tree-message-window) buffer))
552 ;; We could check whether this is the only window in its frame,
553 ;; but simply ignoring the error that is thrown otherwise is
554 ;; what we had to do for Emacs 24 and we stick to that because
555 ;; it is still the simplest approach.
557 (delete-window notmuch-tree-message-window)))))
559 (defun notmuch-tree-command-hook ()
560 (when (eq major-mode 'notmuch-tree-mode)
561 ;; We just run the notmuch-show-command-hook on the message pane.
562 (when (buffer-live-p notmuch-tree-message-buffer)
563 (with-current-buffer notmuch-tree-message-buffer
564 (notmuch-show-command-hook)))))
566 (defun notmuch-tree-show-message-in ()
567 "Show the current message (in split-pane)."
569 (let ((id (notmuch-tree-get-message-id))
570 (inhibit-read-only t)
573 ;; We close and reopen the window to kill off un-needed buffers
574 ;; this might cause flickering but seems ok.
575 (notmuch-tree-close-message-window)
576 (setq notmuch-tree-message-window
577 (split-window-vertically (/ (window-height) 4)))
578 (with-selected-window notmuch-tree-message-window
579 (let (;; Since we are only displaying one message do not indent.
580 (notmuch-show-indent-messages-width 0)
581 (notmuch-show-only-matching-messages t)
582 ;; Ensure that `pop-to-buffer-same-window' uses the
583 ;; window we want it to use.
584 (display-buffer-overriding-action
585 '((display-buffer-same-window)
586 (inhibit-same-window . nil))))
587 (setq buffer (notmuch-show id))))
588 ;; We need the `let' as notmuch-tree-message-window is buffer local.
589 (let ((window notmuch-tree-message-window))
590 (with-current-buffer buffer
591 (setq notmuch-tree-message-window window)
592 (add-hook 'kill-buffer-hook 'notmuch-tree-message-window-kill-hook)))
593 (when notmuch-show-mark-read-tags
594 (notmuch-tree-tag-update-display notmuch-show-mark-read-tags))
595 (setq notmuch-tree-message-buffer buffer))))
597 (defun notmuch-tree-show-message-out ()
598 "Show the current message (in whole window)."
600 (let ((id (notmuch-tree-get-message-id))
601 (inhibit-read-only t))
603 ;; We close the window to kill off un-needed buffers.
604 (notmuch-tree-close-message-window)
607 (defun notmuch-tree-show-message (arg)
608 "Show the current message.
610 Shows in split pane or whole window according to value of
611 `notmuch-tree-show-out'. A prefix argument reverses the choice."
613 (if (or (and (notmuch-tree-show-out) (not arg))
614 (and (not (notmuch-tree-show-out)) arg))
615 (notmuch-tree-show-message-out)
616 (notmuch-tree-show-message-in)))
618 (defun notmuch-tree-scroll-message-window ()
619 "Scroll the message window (if it exists)."
621 (when (window-live-p notmuch-tree-message-window)
622 (with-selected-window notmuch-tree-message-window
623 (if (pos-visible-in-window-p (point-max))
627 (defun notmuch-tree-scroll-message-window-back ()
628 "Scroll the message window back (if it exists)."
630 (when (window-live-p notmuch-tree-message-window)
631 (with-selected-window notmuch-tree-message-window
632 (if (pos-visible-in-window-p (point-min))
636 (defun notmuch-tree-scroll-or-next ()
637 "Scroll the message window.
638 If it at end go to next message."
640 (when (notmuch-tree-scroll-message-window)
641 (notmuch-tree-next-matching-message)))
643 (defun notmuch-tree-quit (&optional kill-both)
644 "Close the split view or exit tree."
646 (when (or (not (notmuch-tree-close-message-window)) kill-both)
647 (kill-buffer (current-buffer))))
649 (defun notmuch-tree-close-message-window ()
650 "Close the message-window. Return t if close succeeds."
652 (when (and (window-live-p notmuch-tree-message-window)
653 (eq (window-buffer notmuch-tree-message-window)
654 notmuch-tree-message-buffer))
655 (delete-window notmuch-tree-message-window)
656 (unless (get-buffer-window-list notmuch-tree-message-buffer)
657 (kill-buffer notmuch-tree-message-buffer))
660 (defun notmuch-tree-archive-message (&optional unarchive)
661 "Archive the current message.
663 Archive the current message by applying the tag changes in
664 `notmuch-archive-tags' to it. If a prefix argument is given, the
665 message will be \"unarchived\", i.e. the tag changes in
666 `notmuch-archive-tags' will be reversed."
668 (when notmuch-archive-tags
670 (notmuch-tag-change-list notmuch-archive-tags unarchive))))
672 (defun notmuch-tree-archive-message-then-next (&optional unarchive)
673 "Archive the current message and move to next matching message."
675 (notmuch-tree-archive-message unarchive)
676 (notmuch-tree-next-matching-message))
678 (defun notmuch-tree-archive-thread-then-exit ()
679 "Archive all messages in the current buffer, then exit notmuch-tree."
681 (notmuch-tree-archive-thread)
682 (notmuch-tree-quit t))
684 (defun notmuch-tree-archive-message-then-next-or-exit ()
685 "Archive current message, then show next open message in current thread.
687 If at the last open message in the current thread, then exit back
690 (notmuch-tree-archive-message)
691 (notmuch-tree-next-matching-message t))
693 (defun notmuch-tree-next-message ()
694 "Move to next message."
697 (when (window-live-p notmuch-tree-message-window)
698 (notmuch-tree-show-message-in)))
700 (defun notmuch-tree-prev-message ()
701 "Move to previous message."
704 (when (window-live-p notmuch-tree-message-window)
705 (notmuch-tree-show-message-in)))
707 (defun notmuch-tree-goto-matching-message (&optional prev)
708 "Move to the next or previous matching message.
710 Returns t if there was a next matching message in the thread to show,
712 (let ((dir (if prev -1 nil))
713 (eobfn (if prev #'bobp #'eobp)))
714 (while (and (not (funcall eobfn))
715 (not (notmuch-tree-get-match)))
717 (not (funcall eobfn))))
719 (defun notmuch-tree-matching-message (&optional prev pop-at-end)
720 "Move to the next or previous matching message."
722 (forward-line (if prev -1 nil))
723 (if (and (not (notmuch-tree-goto-matching-message prev)) pop-at-end)
724 (notmuch-tree-quit pop-at-end)
725 (when (window-live-p notmuch-tree-message-window)
726 (notmuch-tree-show-message-in))))
728 (defun notmuch-tree-prev-matching-message (&optional pop-at-end)
729 "Move to previous matching message."
731 (notmuch-tree-matching-message t pop-at-end))
733 (defun notmuch-tree-next-matching-message (&optional pop-at-end)
734 "Move to next matching message."
736 (notmuch-tree-matching-message nil pop-at-end))
738 (defun notmuch-tree-refresh-view (&optional view)
741 (when (get-buffer-process (current-buffer))
742 (error "notmuch tree process already running for current buffer"))
743 (let ((inhibit-read-only t)
744 (basic-query notmuch-tree-basic-query)
745 (unthreaded (cond ((eq view 'unthreaded) t)
746 ((eq view 'tree) nil)
747 (t notmuch-tree-unthreaded)))
748 (query-context notmuch-tree-query-context)
749 (target (notmuch-tree-get-message-id)))
751 (notmuch-tree-worker basic-query
757 (defun notmuch-tree-thread-top ()
758 (when (notmuch-tree-get-message-properties)
759 (while (not (or (notmuch-tree-get-prop :first) (eobp)))
762 (defun notmuch-tree-prev-thread-in-tree ()
763 "Move to the previous thread in the current tree"
766 (notmuch-tree-thread-top)
769 (defun notmuch-tree-next-thread-in-tree ()
770 "Get the next thread in the current tree. Returns t if a thread was
771 found or nil if not."
774 (while (not (or (notmuch-tree-get-prop :first) (eobp)))
778 (defun notmuch-tree-next-thread-from-search (&optional previous)
779 "Move to the next thread in the parent search results, if any.
781 If PREVIOUS is non-nil, move to the previous item in the
782 search results instead."
784 (let ((parent-buffer notmuch-tree-parent-buffer))
785 (notmuch-tree-quit t)
786 (when (buffer-live-p parent-buffer)
787 (switch-to-buffer parent-buffer)
789 (notmuch-search-previous-thread)
790 (notmuch-search-next-thread))
791 (notmuch-tree-from-search-thread))))
793 (defun notmuch-tree-next-thread (&optional previous)
794 "Move to the next thread in the current tree or parent search
797 If PREVIOUS is non-nil, move to the previous thread in the tree or
798 search results instead."
800 (unless (if previous (notmuch-tree-prev-thread-in-tree)
801 (notmuch-tree-next-thread-in-tree))
802 (notmuch-tree-next-thread-from-search previous)))
804 (defun notmuch-tree-prev-thread ()
805 "Move to the previous thread in the current tree or parent search
808 (notmuch-tree-next-thread t))
810 (defun notmuch-tree-thread-mapcar (function)
811 "Iterate through all messages in the current thread
812 and call FUNCTION for side effects."
814 (notmuch-tree-thread-top)
815 (cl-loop collect (funcall function)
817 while (and (notmuch-tree-get-message-properties)
818 (not (notmuch-tree-get-prop :first))))))
820 (defun notmuch-tree-get-messages-ids-thread-search ()
821 "Return a search string for all message ids of messages in the current thread."
823 (notmuch-tree-thread-mapcar 'notmuch-tree-get-message-id)
826 (defun notmuch-tree-tag-thread (tag-changes)
827 "Tag all messages in the current thread."
829 (let ((tags (apply #'append (notmuch-tree-thread-mapcar
830 (lambda () (notmuch-tree-get-tags))))))
831 (list (notmuch-read-tag-changes tags "Tag thread"))))
832 (when (notmuch-tree-get-message-properties)
833 (notmuch-tag (notmuch-tree-get-messages-ids-thread-search) tag-changes)
834 (notmuch-tree-thread-mapcar
835 (lambda () (notmuch-tree-tag-update-display tag-changes)))))
837 (defun notmuch-tree-archive-thread (&optional unarchive)
838 "Archive each message in thread.
840 Archive each message currently shown by applying the tag changes
841 in `notmuch-archive-tags' to each. If a prefix argument is given,
842 the messages will be \"unarchived\", i.e. the tag changes in
843 `notmuch-archive-tags' will be reversed.
845 Note: This command is safe from any race condition of new messages
846 being delivered to the same thread. It does not archive the
847 entire thread, but only the messages shown in the current
850 (when notmuch-archive-tags
851 (notmuch-tree-tag-thread
852 (notmuch-tag-change-list notmuch-archive-tags unarchive))))
854 ;;; Functions for displaying the tree buffer itself
856 (defun notmuch-tree-clean-address (address)
857 "Try to clean a single email ADDRESS for display. Return
858 AUTHOR_NAME if present, otherwise return AUTHOR_EMAIL. Return
859 unchanged ADDRESS if parsing fails."
860 (let* ((clean-address (notmuch-clean-address address))
861 (p-address (car clean-address))
862 (p-name (cdr clean-address)))
864 ;; If we have a name return that otherwise return the address.
865 (or p-name p-address)))
867 (defun notmuch-tree-format-field (field format-string msg)
868 "Format a FIELD of MSG according to FORMAT-STRING and return string."
869 (let* ((headers (plist-get msg :headers))
870 (match (plist-get msg :match)))
873 (format format-string (notmuch-tree-format-field-list field msg)))
875 ((string-equal field "date")
876 (let ((face (if match
877 'notmuch-tree-match-date-face
878 'notmuch-tree-no-match-date-face)))
879 (propertize (format format-string (plist-get msg :date_relative))
882 ((string-equal field "tree")
883 (let ((tree-status (plist-get msg :tree-status))
885 'notmuch-tree-match-tree-face
886 'notmuch-tree-no-match-tree-face)))
888 (propertize (format format-string
889 (mapconcat #'identity (reverse tree-status) ""))
892 ((string-equal field "subject")
893 (let ((bare-subject (notmuch-show-strip-re (plist-get headers :Subject)))
894 (previous-subject notmuch-tree-previous-subject)
896 'notmuch-tree-match-subject-face
897 'notmuch-tree-no-match-subject-face)))
899 (setq notmuch-tree-previous-subject bare-subject)
900 (propertize (format format-string
901 (if (string= previous-subject bare-subject)
906 ((string-equal field "authors")
907 (let ((author (notmuch-tree-clean-address (plist-get headers :From)))
908 (len (length (format format-string "")))
910 'notmuch-tree-match-author-face
911 'notmuch-tree-no-match-author-face)))
912 (when (> (length author) len)
913 (setq author (substring author 0 len)))
914 (propertize (format format-string author) 'face face)))
916 ((string-equal field "tags")
917 (let ((tags (plist-get msg :tags))
918 (orig-tags (plist-get msg :orig-tags))
920 'notmuch-tree-match-tag-face
921 'notmuch-tree-no-match-tag-face)))
922 (format format-string (notmuch-tag-format-tags tags orig-tags face)))))))
924 (defun notmuch-tree-format-field-list (field-list msg)
925 "Format fields of MSG according to FIELD-LIST and return string."
926 (let ((face (if (plist-get msg :match)
927 'notmuch-tree-match-face
928 'notmuch-tree-no-match-face))
930 (dolist (spec field-list result-string)
931 (let ((field-string (notmuch-tree-format-field (car spec) (cdr spec) msg)))
932 (setq result-string (concat result-string field-string))))
933 (notmuch-apply-face result-string face t)))
935 (defun notmuch-tree-insert-msg (msg)
936 "Insert the message MSG according to notmuch-tree-result-format."
937 ;; We need to save the previous subject as it will get overwritten
938 ;; by the insert-field calls.
939 (let ((previous-subject notmuch-tree-previous-subject))
940 (insert (notmuch-tree-format-field-list (notmuch-tree-result-format) msg))
941 (notmuch-tree-set-message-properties msg)
942 (notmuch-tree-set-prop :previous-subject previous-subject)
945 (defun notmuch-tree-goto-and-insert-msg (msg)
946 "Insert msg at the end of the buffer. Move point to msg if it is the target."
948 (goto-char (point-max))
949 (notmuch-tree-insert-msg msg))
950 (let ((msg-id (notmuch-id-to-query (plist-get msg :id)))
951 (target notmuch-tree-target-msg))
952 (when (or (and (not target) (plist-get msg :match))
953 (string= msg-id target))
954 (setq notmuch-tree-target-msg "found")
955 (goto-char (point-max))
957 (when notmuch-tree-open-target
958 (notmuch-tree-show-message-in)))))
960 (defun notmuch-tree-insert-tree (tree depth tree-status first last)
961 "Insert the message tree TREE at depth DEPTH in the current thread.
963 A message tree is another name for a single sub-thread: i.e., a
964 message together with all its descendents."
965 (let ((msg (car tree))
966 (replies (cadr tree)))
968 ((and (< 0 depth) (not last))
969 (push "├" tree-status))
970 ((and (< 0 depth) last)
971 (push "╰" tree-status))
972 ((and (eq 0 depth) first last)
973 ;; Choice between these two variants is a matter of taste.
974 ;; (push "─" tree-status))
975 (push " " tree-status))
976 ((and (eq 0 depth) first (not last))
977 (push "┬" tree-status))
978 ((and (eq 0 depth) (not first) last)
979 (push "╰" tree-status))
980 ((and (eq 0 depth) (not first) (not last))
981 (push "├" tree-status)))
982 (push (concat (if replies "┬" "─") "►") tree-status)
983 (setq msg (plist-put msg :first (and first (eq 0 depth))))
984 (setq msg (plist-put msg :tree-status tree-status))
985 (setq msg (plist-put msg :orig-tags (plist-get msg :tags)))
986 (notmuch-tree-goto-and-insert-msg msg)
990 (push " " tree-status)
991 (push "│" tree-status))
992 (notmuch-tree-insert-thread replies (1+ depth) tree-status)))
994 (defun notmuch-tree-insert-thread (thread depth tree-status)
995 "Insert the collection of sibling sub-threads THREAD at depth DEPTH in the current forest."
996 (let ((n (length thread)))
997 (cl-loop for tree in thread
998 for count from 1 to n
999 do (notmuch-tree-insert-tree tree depth tree-status
1003 (defun notmuch-tree-insert-forest-thread (forest-thread)
1004 "Insert a single complete thread."
1006 ;; Reset at the start of each main thread.
1007 (setq notmuch-tree-previous-subject nil)
1008 (notmuch-tree-insert-thread forest-thread 0 tree-status)))
1010 (defun notmuch-tree-insert-forest (forest)
1011 "Insert a forest of threads.
1013 This function inserts a collection of several complete threads as
1014 passed to it by notmuch-tree-process-filter."
1015 (mapc 'notmuch-tree-insert-forest-thread forest))
1017 (define-derived-mode notmuch-tree-mode fundamental-mode "notmuch-tree"
1018 "Major mode displaying messages (as opposed to threads) of a notmuch search.
1020 This buffer contains the results of a \"notmuch tree\" of your
1021 email archives. Each line in the buffer represents a single
1022 message giving the relative date, the author, subject, and any
1025 Pressing \\[notmuch-tree-show-message] on any line displays that message.
1027 Complete list of currently available key bindings:
1029 \\{notmuch-tree-mode-map}"
1030 (setq notmuch-buffer-refresh-function #'notmuch-tree-refresh-view)
1032 (setq buffer-read-only t)
1033 (setq truncate-lines t))
1035 (defun notmuch-tree-process-sentinel (proc _msg)
1036 "Add a message to let user know when \"notmuch tree\" exits."
1037 (let ((buffer (process-buffer proc))
1038 (status (process-status proc))
1039 (exit-status (process-exit-status proc)))
1040 (when (memq status '(exit signal))
1041 (kill-buffer (process-get proc 'parse-buf))
1042 (when (buffer-live-p buffer)
1043 (with-current-buffer buffer
1045 (let ((inhibit-read-only t))
1046 (goto-char (point-max))
1047 (when (eq status 'signal)
1048 (insert "Incomplete search results (tree view process was killed).\n"))
1049 (when (eq status 'exit)
1050 (insert "End of search results.")
1051 (unless (= exit-status 0)
1052 (insert (format " (process returned %d)" exit-status)))
1053 (insert "\n")))))))))
1055 (defun notmuch-tree-process-filter (proc string)
1056 "Process and filter the output of \"notmuch show\" for tree view."
1057 (let ((results-buf (process-buffer proc))
1058 (parse-buf (process-get proc 'parse-buf))
1059 (inhibit-read-only t))
1060 (if (not (buffer-live-p results-buf))
1061 (delete-process proc)
1062 (with-current-buffer parse-buf
1065 (goto-char (point-max))
1067 (notmuch-sexp-parse-partial-list 'notmuch-tree-insert-forest-thread
1070 (defun notmuch-tree-worker (basic-query &optional query-context target open-target unthreaded)
1071 "Insert the tree view of the search in the current buffer.
1073 This is is a helper function for notmuch-tree. The arguments are
1074 the same as for the function notmuch-tree."
1077 (add-hook 'post-command-hook #'notmuch-tree-command-hook t t)
1078 (setq notmuch-tree-unthreaded unthreaded)
1079 (setq notmuch-tree-basic-query basic-query)
1080 (setq notmuch-tree-query-context (if (or (string= query-context "")
1081 (string= query-context "*"))
1084 (setq notmuch-tree-target-msg target)
1085 (setq notmuch-tree-open-target open-target)
1086 ;; Set the default value for `notmuch-show-process-crypto' in this
1087 ;; buffer. Although we don't use this some of the functions we call
1088 ;; (such as reply) do. It is a buffer local variable so setting it
1089 ;; will not affect genuine show buffers.
1090 (setq notmuch-show-process-crypto notmuch-crypto-process-mime)
1092 (goto-char (point-min))
1093 (let* ((search-args (concat basic-query
1095 (concat " and (" query-context ")"))))
1096 (message-arg (if unthreaded "--unthreaded" "--entire-thread")))
1097 (when (equal (car (process-lines notmuch-command "count" search-args)) "0")
1098 (setq search-args basic-query))
1099 (notmuch-tag-clear-cache)
1100 (let ((proc (notmuch-start-notmuch
1101 "notmuch-tree" (current-buffer) #'notmuch-tree-process-sentinel
1102 "show" "--body=false" "--format=sexp" "--format-version=4"
1103 message-arg search-args))
1104 ;; Use a scratch buffer to accumulate partial output.
1105 ;; This buffer will be killed by the sentinel, which
1106 ;; should be called no matter how the process dies.
1107 (parse-buf (generate-new-buffer " *notmuch tree parse*")))
1108 (process-put proc 'parse-buf parse-buf)
1109 (set-process-filter proc 'notmuch-tree-process-filter)
1110 (set-process-query-on-exit-flag proc nil))))
1112 (defun notmuch-tree-get-query ()
1113 "Return the current query in this tree buffer."
1114 (if notmuch-tree-query-context
1115 (concat notmuch-tree-basic-query
1117 notmuch-tree-query-context
1119 notmuch-tree-basic-query))
1121 (defun notmuch-tree (&optional query query-context target buffer-name open-target unthreaded parent-buffer)
1122 "Display threads matching QUERY in tree view.
1125 QUERY: the main query. This can be any query but in many cases will be
1126 a single thread. If nil this is read interactively from the minibuffer.
1127 QUERY-CONTEXT: is an additional term for the query. The query used
1128 is QUERY and QUERY-CONTEXT unless that does not match any messages
1129 in which case we fall back to just QUERY.
1130 TARGET: A message ID (with the id: prefix) that will be made
1131 current if it appears in the tree view results.
1132 BUFFER-NAME: the name of the buffer to display the tree view. If
1133 it is nil \"*notmuch-tree\" followed by QUERY is used.
1134 OPEN-TARGET: If TRUE open the target message in the message pane.
1135 UNTHREADED: If TRUE only show matching messages in an unthreaded view."
1138 (setq query (notmuch-read-query (concat "Notmuch "
1139 (if unthreaded "unthreaded " "tree ")
1141 (let ((buffer (get-buffer-create (generate-new-buffer-name
1144 (if unthreaded "unthreaded-" "tree-")
1146 (inhibit-read-only t))
1147 (pop-to-buffer-same-window buffer))
1148 ;; Don't track undo information for this buffer
1149 (setq buffer-undo-list t)
1150 (notmuch-tree-worker query query-context target open-target unthreaded)
1151 (setq notmuch-tree-parent-buffer parent-buffer)
1152 (setq truncate-lines t))
1154 (defun notmuch-unthreaded (&optional query query-context target buffer-name open-target)
1156 (notmuch-tree query query-context target buffer-name open-target t))
1160 (provide 'notmuch-tree)
1162 ;;; notmuch-tree.el ends here