1 ;;; gnus-salt.el --- alternate summary mode interfaces for Gnus
3 ;; Copyright (C) 1996, 1997, 1998, 1999, 2001
4 ;; Free Software Foundation, Inc.
6 ;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
9 ;; This file is part of GNU Emacs.
11 ;; GNU Emacs is free software; you can redistribute it and/or modify
12 ;; it under the terms of the GNU General Public License as published by
13 ;; the Free Software Foundation; either version 2, or (at your option)
16 ;; GNU Emacs is distributed in the hope that it will be useful,
17 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
18 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 ;; GNU General Public License for more details.
21 ;; You should have received a copy of the GNU General Public License
22 ;; along with GNU Emacs; see the file COPYING. If not, write to the
23 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
24 ;; Boston, MA 02111-1307, USA.
30 (eval-when-compile (require 'cl
))
40 (defvar gnus-pick-mode nil
41 "Minor mode for providing a pick-and-read interface in Gnus
44 (defcustom gnus-pick-display-summary nil
45 "*Display summary while reading."
47 :group
'gnus-summary-pick
)
49 (defcustom gnus-pick-mode-hook nil
50 "Hook run in summary pick mode buffers."
52 :group
'gnus-summary-pick
)
54 (when (featurep 'xemacs
)
55 (add-hook 'gnus-pick-mode-hook
'gnus-xmas-pick-menu-add
))
57 (defcustom gnus-mark-unpicked-articles-as-read nil
58 "*If non-nil, mark all unpicked articles as read."
60 :group
'gnus-summary-pick
)
62 (defcustom gnus-pick-elegant-flow t
63 "If non-nil, `gnus-pick-start-reading' runs
64 `gnus-summary-next-group' when no articles have been picked."
66 :group
'gnus-summary-pick
)
68 (defcustom gnus-summary-pick-line-format
69 "%-5P %U\%R\%z\%I\%(%[%4L: %-23,23n%]%) %s\n"
70 "*The format specification of the lines in pick buffers.
71 It accepts the same format specs that `gnus-summary-line-format' does."
73 :group
'gnus-summary-pick
)
75 ;;; Internal variables.
77 (defvar gnus-pick-mode-map nil
)
79 (unless gnus-pick-mode-map
80 (setq gnus-pick-mode-map
(make-sparse-keymap))
82 (gnus-define-keys gnus-pick-mode-map
83 " " gnus-pick-next-page
84 "u" gnus-pick-unmark-article-or-thread
85 "." gnus-pick-article-or-thread
86 gnus-down-mouse-2 gnus-pick-mouse-pick-region
87 "\r" gnus-pick-start-reading
))
89 (defun gnus-pick-make-menu-bar ()
90 (unless (boundp 'gnus-pick-menu
)
92 gnus-pick-menu gnus-pick-mode-map
""
95 ["Article" gnus-summary-mark-as-processable t
]
96 ["Thread" gnus-uu-mark-thread t
]
97 ["Region" gnus-uu-mark-region t
]
98 ["Regexp" gnus-uu-mark-by-regexp t
]
99 ["Buffer" gnus-uu-mark-buffer t
])
101 ["Article" gnus-summary-unmark-as-processable t
]
102 ["Thread" gnus-uu-unmark-thread t
]
103 ["Region" gnus-uu-unmark-region t
]
104 ["Regexp" gnus-uu-unmark-by-regexp t
]
105 ["Buffer" gnus-summary-unmark-all-processable t
])
106 ["Start reading" gnus-pick-start-reading t
]
107 ["Switch pick mode off" gnus-pick-mode gnus-pick-mode
]))))
109 (defun gnus-pick-mode (&optional arg
)
110 "Minor mode for providing a pick-and-read interface in Gnus summary buffers.
112 \\{gnus-pick-mode-map}"
114 (when (eq major-mode
'gnus-summary-mode
)
115 (if (not (set (make-local-variable 'gnus-pick-mode
)
116 (if (null arg
) (not gnus-pick-mode
)
117 (> (prefix-numeric-value arg
) 0))))
118 (remove-hook 'gnus-message-setup-hook
'gnus-pick-setup-message
)
119 ;; Make sure that we don't select any articles upon group entry.
120 (set (make-local-variable 'gnus-auto-select-first
) nil
)
121 ;; Change line format.
122 (setq gnus-summary-line-format gnus-summary-pick-line-format
)
123 (setq gnus-summary-line-format-spec nil
)
124 (gnus-update-format-specifications nil
'summary
)
125 (gnus-update-summary-mark-positions)
126 (add-hook 'gnus-message-setup-hook
'gnus-pick-setup-message
)
127 (set (make-local-variable 'gnus-summary-goto-unread
) 'never
)
129 (when (gnus-visual-p 'pick-menu
'menu
)
130 (gnus-pick-make-menu-bar))
131 (gnus-add-minor-mode 'gnus-pick-mode
" Pick" gnus-pick-mode-map
133 (gnus-run-hooks 'gnus-pick-mode-hook
))))
135 (defun gnus-pick-setup-message ()
136 "Make Message do the right thing on exit."
137 (when (and (gnus-buffer-live-p gnus-summary-buffer
)
139 (set-buffer gnus-summary-buffer
)
142 '(gnus-configure-windows ,gnus-current-window-configuration t
)
143 'send
'exit
'postpone
'kill
)))
145 (defvar gnus-pick-line-number
1)
146 (defun gnus-pick-line-number ()
147 "Return the current line number."
149 (setq gnus-pick-line-number
1)
150 (incf gnus-pick-line-number
)))
152 (defun gnus-pick-start-reading (&optional catch-up
)
153 "Start reading the picked articles.
154 If given a prefix, mark all unpicked articles as read."
156 (if gnus-newsgroup-processable
158 (gnus-summary-limit-to-articles nil
)
159 (when (or catch-up gnus-mark-unpicked-articles-as-read
)
160 (gnus-summary-limit-mark-excluded-as-read))
161 (gnus-summary-first-article)
162 (gnus-configure-windows
163 (if gnus-pick-display-summary
'article
'pick
) t
))
164 (if gnus-pick-elegant-flow
166 (when (or catch-up gnus-mark-unpicked-articles-as-read
)
167 (gnus-summary-catchup nil t
))
168 (if (gnus-group-quit-config gnus-newsgroup-name
)
170 (gnus-summary-next-group)))
171 (error "No articles have been picked"))))
173 (defun gnus-pick-goto-article (arg)
174 "Go to the article number indicated by ARG.
175 If ARG is an invalid article number, then stay on current line."
178 (goto-char (point-min))
179 (when (zerop (forward-line (1- (prefix-numeric-value arg
))))
182 (gnus-error 2 "No such line: %s" arg
)
185 (defun gnus-pick-article (&optional arg
)
186 "Pick the article on the current line.
187 If ARG, pick the article on that line instead."
190 (gnus-pick-goto-article arg
))
191 (gnus-summary-mark-as-processable 1))
193 (defun gnus-pick-article-or-thread (&optional arg
)
194 "If `gnus-thread-hide-subtree' is t, then pick the thread on the current line.
195 Otherwise pick the article on the current line.
196 If ARG, pick the article/thread on that line instead."
199 (gnus-pick-goto-article arg
))
200 (if gnus-thread-hide-subtree
203 (gnus-uu-mark-thread))
205 (gnus-summary-mark-as-processable 1)))
207 (defun gnus-pick-unmark-article-or-thread (&optional arg
)
208 "If `gnus-thread-hide-subtree' is t, then unmark the thread on current line.
209 Otherwise unmark the article on current line.
210 If ARG, unmark thread/article on that line instead."
213 (gnus-pick-goto-article arg
))
214 (if gnus-thread-hide-subtree
216 (gnus-uu-unmark-thread))
217 (gnus-summary-unmark-as-processable 1)))
219 (defun gnus-pick-mouse-pick (e)
223 (gnus-summary-mark-as-processable 1)))
225 (defun gnus-pick-mouse-pick-region (start-event)
226 "Pick articles that the mouse is dragged over.
227 This must be bound to a button-down mouse event."
229 (mouse-minibuffer-check start-event
)
230 (let* ((echo-keystrokes 0)
231 (start-posn (event-start start-event
))
232 (start-point (posn-point start-posn
))
233 (start-line (1+ (count-lines 1 start-point
)))
234 (start-window (posn-window start-posn
))
235 (bounds (gnus-window-edges start-window
))
237 (bottom (if (window-minibuffer-p start-window
)
239 ;; Don't count the mode line.
240 (1- (nth 3 bounds
))))
241 (click-count (1- (event-click-count start-event
))))
242 (setq mouse-selection-click-count click-count
)
243 (setq mouse-selection-click-count-buffer
(current-buffer))
244 (mouse-set-point start-event
)
245 ;; In case the down click is in the middle of some intangible text,
246 ;; use the end of that text, and put it in START-POINT.
247 (when (< (point) start-point
)
248 (goto-char start-point
))
250 (setq start-point
(point))
251 ;; end-of-range is used only in the single-click case.
252 ;; It is the place where the drag has reached so far
253 ;; (but not outside the window where the drag started).
254 (let (event end end-point
(end-of-range (point)))
257 (setq event
(cdr (gnus-read-event-char)))
258 (or (mouse-movement-p event
)
259 (eq (car-safe event
) 'switch-frame
)))
260 (if (eq (car-safe event
) 'switch-frame
)
262 (setq end
(event-end event
)
263 end-point
(posn-point end
))
266 ;; Are we moving within the original window?
267 ((and (eq (posn-window end
) start-window
)
268 (integer-or-marker-p end-point
))
269 ;; Go to START-POINT first, so that when we move to END-POINT,
270 ;; if it's in the middle of intangible text,
271 ;; point jumps in the direction away from START-POINT.
272 (goto-char start-point
)
273 (goto-char end-point
)
275 ;; In case the user moved his mouse really fast, pick
276 ;; articles on the line between this one and the last one.
277 (let* ((this-line (1+ (count-lines 1 end-point
)))
278 (min-line (min this-line start-line
))
279 (max-line (max this-line start-line
)))
280 (while (< min-line max-line
)
283 (setq min-line
(1+ min-line
)))
284 (setq start-line this-line
))
285 (when (zerop (% click-count
3))
286 (setq end-of-range
(point))))
288 (let ((mouse-row (cdr (cdr (mouse-position)))))
292 (mouse-scroll-subr start-window
(- mouse-row top
)))
293 ((>= mouse-row bottom
)
294 (mouse-scroll-subr start-window
295 (1+ (- mouse-row bottom
)))))))))))
297 (let ((fun (key-binding (vector (car event
)))))
298 ;; Run the binding of the terminating up-event, if possible.
299 ;; In the case of a multiple click, it gives the wrong results,
300 ;; because it would fail to set up a region.
302 ;; (and (= (mod mouse-selection-click-count 3) 0) (fboundp fun))
303 ;; In this case, we can just let the up-event execute normally.
304 (let ((end (event-end event
)))
305 ;; Set the position in the event before we replay it,
306 ;; because otherwise it may have a position in the wrong
308 (setcar (cdr end
) end-of-range
)
309 ;; Delete the overlay before calling the function,
310 ;; because delete-overlay increases buffer-modified-tick.
311 (push event unread-command-events
))))))))
313 (defun gnus-pick-next-page ()
314 "Go to the next page. If at the end of the buffer, start reading articles."
316 (let ((scroll-in-place nil
))
319 (end-of-buffer (gnus-pick-start-reading)))))
325 (defvar gnus-binary-mode nil
326 "Minor mode for providing a binary group interface in Gnus summary buffers.")
328 (defvar gnus-binary-mode-hook nil
329 "Hook run in summary binary mode buffers.")
331 (defvar gnus-binary-mode-map nil
)
333 (unless gnus-binary-mode-map
334 (setq gnus-binary-mode-map
(make-sparse-keymap))
338 "g" gnus-binary-show-article
))
340 (defun gnus-binary-make-menu-bar ()
341 (unless (boundp 'gnus-binary-menu
)
343 gnus-binary-menu gnus-binary-mode-map
""
345 ["Switch binary mode off" gnus-binary-mode t
]))))
347 (defun gnus-binary-mode (&optional arg
)
348 "Minor mode for providing a binary group interface in Gnus summary buffers."
350 (when (eq major-mode
'gnus-summary-mode
)
351 (make-local-variable 'gnus-binary-mode
)
352 (setq gnus-binary-mode
353 (if (null arg
) (not gnus-binary-mode
)
354 (> (prefix-numeric-value arg
) 0)))
355 (when gnus-binary-mode
356 ;; Make sure that we don't select any articles upon group entry.
357 (make-local-variable 'gnus-auto-select-first
)
358 (setq gnus-auto-select-first nil
)
359 (make-local-variable 'gnus-summary-display-article-function
)
360 (setq gnus-summary-display-article-function
'gnus-binary-display-article
)
362 (when (gnus-visual-p 'binary-menu
'menu
)
363 (gnus-binary-make-menu-bar))
364 (gnus-add-minor-mode 'gnus-binary-mode
" Binary"
365 gnus-binary-mode-map nil
'gnus-binary-mode
)
366 (gnus-run-hooks 'gnus-binary-mode-hook
))))
368 (defun gnus-binary-display-article (article &optional all-header
)
369 "Run ARTICLE through the binary decode functions."
370 (when (gnus-summary-goto-subject article
)
371 (let ((gnus-view-pseudos (or gnus-view-pseudos
'automatic
)))
372 (gnus-uu-decode-uu))))
374 (defun gnus-binary-show-article (&optional arg
)
375 "Bypass the binary functions and show the article."
377 (let (gnus-summary-display-article-function)
378 (gnus-summary-show-article arg
)))
384 (defcustom gnus-tree-line-format
"%(%[%3,3n%]%)"
385 "Format of tree elements."
387 :group
'gnus-summary-tree
)
389 (defcustom gnus-tree-minimize-window t
390 "If non-nil, minimize the tree buffer window.
391 If a number, never let the tree buffer grow taller than that number of
393 :type
'(choice boolean
395 :group
'gnus-summary-tree
)
397 (defcustom gnus-selected-tree-face
'modeline
398 "*Face used for highlighting selected articles in the thread tree."
400 :group
'gnus-summary-tree
)
402 (defvar gnus-tree-brackets
'((?\
[ . ?\
]) (?\
( . ?\
))
403 (?\
{ . ?\
}) (?
< . ?
>))
404 "Brackets used in tree nodes.")
406 (defvar gnus-tree-parent-child-edges
'(?- ?
\\ ?|
)
407 "Characters used to connect parents with children.")
409 (defcustom gnus-tree-mode-line-format
"Gnus: %%b %S %Z"
410 "*The format specification for the tree mode line."
412 :group
'gnus-summary-tree
)
414 (defcustom gnus-generate-tree-function
'gnus-generate-vertical-tree
415 "*Function for generating a thread tree.
416 Two predefined functions are available:
417 `gnus-generate-horizontal-tree' and `gnus-generate-vertical-tree'."
418 :type
'(radio (function-item gnus-generate-vertical-tree
)
419 (function-item gnus-generate-horizontal-tree
)
420 (function :tag
"Other" nil
))
421 :group
'gnus-summary-tree
)
423 (defcustom gnus-tree-mode-hook nil
424 "*Hook run in tree mode buffers."
426 :group
'gnus-summary-tree
)
428 (when (featurep 'xemacs
)
429 (add-hook 'gnus-tree-mode-hook
'gnus-xmas-tree-menu-add
)
430 (add-hook 'gnus-tree-mode-hook
'gnus-xmas-switch-horizontal-scrollbar-off
))
433 ;;; Internal variables.
435 (defvar gnus-tree-line-format-alist
436 `((?n gnus-tmp-name ?s
)
437 (?f gnus-tmp-from ?s
)
438 (?N gnus-tmp-number ?d
)
439 (?\
[ gnus-tmp-open-bracket ?c
)
440 (?\
] gnus-tmp-close-bracket ?c
)
441 (?s gnus-tmp-subject ?s
)))
443 (defvar gnus-tree-mode-line-format-alist gnus-summary-mode-line-format-alist
)
445 (defvar gnus-tree-mode-line-format-spec nil
)
446 (defvar gnus-tree-line-format-spec nil
)
448 (defvar gnus-tree-node-length nil
)
449 (defvar gnus-selected-tree-overlay nil
)
451 (defvar gnus-tree-displayed-thread nil
)
452 (defvar gnus-tree-inhibit nil
)
454 (defvar gnus-tree-mode-map nil
)
455 (put 'gnus-tree-mode
'mode-class
'special
)
457 (unless gnus-tree-mode-map
458 (setq gnus-tree-mode-map
(make-keymap))
459 (suppress-keymap gnus-tree-mode-map
)
462 "\r" gnus-tree-select-article
463 gnus-mouse-2 gnus-tree-pick-article
464 "\C-?" gnus-tree-read-summary-keys
465 "h" gnus-tree-show-summary
467 "\C-c\C-i" gnus-info-find-node
)
469 (substitute-key-definition
470 'undefined
'gnus-tree-read-summary-keys gnus-tree-mode-map
))
472 (defun gnus-tree-make-menu-bar ()
473 (unless (boundp 'gnus-tree-menu
)
475 gnus-tree-menu gnus-tree-mode-map
""
477 ["Select article" gnus-tree-select-article t
]))))
479 (defun gnus-tree-mode ()
480 "Major mode for displaying thread trees."
482 (gnus-set-format 'tree-mode
)
483 (gnus-set-format 'tree t
)
484 (when (gnus-visual-p 'tree-menu
'menu
)
485 (gnus-tree-make-menu-bar))
486 (kill-all-local-variables)
487 (gnus-simplify-mode-line)
488 (setq mode-name
"Tree")
489 (setq major-mode
'gnus-tree-mode
)
490 (use-local-map gnus-tree-mode-map
)
491 (buffer-disable-undo)
492 (setq buffer-read-only t
)
493 (setq truncate-lines t
)
495 (gnus-set-work-buffer)
496 (gnus-tree-node-insert (make-mail-header "") nil
)
497 (setq gnus-tree-node-length
(1- (point))))
498 (gnus-run-hooks 'gnus-tree-mode-hook
))
500 (defun gnus-tree-read-summary-keys (&optional arg
)
501 "Read a summary buffer key sequence and execute it."
503 (unless gnus-tree-inhibit
504 (let ((buf (current-buffer))
505 (gnus-tree-inhibit t
)
507 (set-buffer gnus-article-buffer
)
508 (gnus-article-read-summary-keys arg nil t
)
509 (when (setq win
(get-buffer-window buf
))
511 (when gnus-selected-tree-overlay
512 (goto-char (or (gnus-overlay-end gnus-selected-tree-overlay
) 1)))
513 (gnus-tree-minimize)))))
515 (defun gnus-tree-show-summary ()
516 "Reconfigure windows to show summary buffer."
518 (if (not (gnus-buffer-live-p gnus-summary-buffer
))
519 (error "There is no summary buffer for this tree buffer")
520 (gnus-configure-windows 'article
)
521 (gnus-summary-goto-subject gnus-current-article
)))
523 (defun gnus-tree-select-article (article)
524 "Select the article under point, if any."
525 (interactive (list (gnus-tree-article-number)))
526 (let ((buf (current-buffer)))
529 (set-buffer gnus-summary-buffer
)
530 (gnus-summary-goto-article article
))
531 (select-window (get-buffer-window buf
)))))
533 (defun gnus-tree-pick-article (e)
534 "Select the article under the mouse pointer."
537 (gnus-tree-select-article (gnus-tree-article-number)))
539 (defun gnus-tree-article-number ()
540 (get-text-property (point) 'gnus-number
))
542 (defun gnus-tree-article-region (article)
543 "Return a cons with BEG and END of the article region."
544 (let ((pos (text-property-any
545 (point-min) (point-max) 'gnus-number article
)))
547 (cons pos
(next-single-property-change pos
'gnus-number
)))))
549 (defun gnus-tree-goto-article (article)
550 (let ((pos (text-property-any
551 (point-min) (point-max) 'gnus-number article
)))
555 (defun gnus-tree-recenter ()
556 "Center point in the tree window."
557 (let ((selected (selected-window))
558 (tree-window (gnus-get-buffer-window gnus-tree-buffer t
)))
560 (select-window tree-window
)
561 (when gnus-selected-tree-overlay
562 (goto-char (or (gnus-overlay-end gnus-selected-tree-overlay
) 1)))
563 (let* ((top (cond ((< (window-height) 4) 0)
564 ((< (window-height) 7) 1)
566 (height (1- (window-height)))
567 (bottom (save-excursion (goto-char (point-max))
568 (forward-line (- height
))
570 ;; Set the window start to either `bottom', which is the biggest
571 ;; possible valid number, or the second line from the top,
572 ;; whichever is the least.
574 tree-window
(min bottom
(save-excursion
575 (forward-line (- top
)) (point)))))
576 (select-window selected
))))
578 (defun gnus-get-tree-buffer ()
579 "Return the tree buffer properly initialized."
581 (set-buffer (gnus-get-buffer-create gnus-tree-buffer
))
582 (unless (eq major-mode
'gnus-tree-mode
)
586 (defun gnus-tree-minimize ()
587 (when (and gnus-tree-minimize-window
588 (not (one-window-p)))
591 (walk-windows (lambda (window) (incf windows
)))
594 (* window-min-height
(1- windows
))
596 (let* ((window-min-height 2)
597 (height (count-lines (point-min) (point-max)))
598 (min (max (1- window-min-height
) height
))
599 (tot (if (numberp gnus-tree-minimize-window
)
600 (min gnus-tree-minimize-window min
)
602 (win (get-buffer-window (current-buffer)))
603 (wh (and win
(1- (window-height win
)))))
604 (setq tot
(min tot tot-win-height
))
607 (let ((selected (selected-window)))
608 (when (ignore-errors (select-window win
))
609 (enlarge-window (- tot wh
))
610 (select-window selected
))))))))
612 ;;; Generating the tree.
614 (defun gnus-tree-node-insert (header sparse
&optional adopted
)
615 (let* ((dummy (stringp header
))
616 (header (if (vectorp header
) header
618 (setq header
(make-mail-header "*****"))
619 (mail-header-set-number header
0)
620 (mail-header-set-lines header
0)
621 (mail-header-set-chars header
0)
623 (gnus-tmp-from (mail-header-from header
))
624 (gnus-tmp-subject (mail-header-subject header
))
625 (gnus-tmp-number (mail-header-number header
))
628 ((string-match "(.+)" gnus-tmp-from
)
629 (substring gnus-tmp-from
630 (1+ (match-beginning 0)) (1- (match-end 0))))
631 ((string-match "<[^>]+> *$" gnus-tmp-from
)
632 (let ((beg (match-beginning 0)))
633 (or (and (string-match "^\"[^\"]*\"" gnus-tmp-from
)
634 (substring gnus-tmp-from
(1+ (match-beginning 0))
636 (substring gnus-tmp-from
0 beg
))))
637 ((memq gnus-tmp-number sparse
)
640 (gnus-tmp-open-bracket
641 (cond ((memq gnus-tmp-number sparse
)
642 (caadr gnus-tree-brackets
))
643 (dummy (caaddr gnus-tree-brackets
))
644 (adopted (car (nth 3 gnus-tree-brackets
)))
645 (t (caar gnus-tree-brackets
))))
646 (gnus-tmp-close-bracket
647 (cond ((memq gnus-tmp-number sparse
)
648 (cdadr gnus-tree-brackets
))
649 (adopted (cdr (nth 3 gnus-tree-brackets
)))
651 (cdaddr gnus-tree-brackets
))
652 (t (cdar gnus-tree-brackets
))))
653 (buffer-read-only nil
)
655 (gnus-add-text-properties
657 (setq end
(progn (eval gnus-tree-line-format-spec
) (point)))
658 (list 'gnus-number gnus-tmp-number
))
659 (when (or t
(gnus-visual-p 'tree-highlight
'highlight
))
660 (gnus-tree-highlight-node gnus-tmp-number beg end
))))
662 (defun gnus-tree-highlight-node (article beg end
)
663 "Highlight current line according to `gnus-summary-highlight'."
664 (let ((list gnus-summary-highlight
)
667 (set-buffer gnus-summary-buffer
)
668 (let* ((score (or (cdr (assq article gnus-newsgroup-scored
))
669 gnus-summary-default-score
0))
670 (default gnus-summary-default-score
)
671 (default-high gnus-summary-default-high-score
)
672 (default-low gnus-summary-default-low-score
)
673 (uncached (memq article gnus-newsgroup-undownloaded
))
674 (downloaded (not uncached
))
675 (mark (or (gnus-summary-article-mark article
) gnus-unread-mark
)))
676 ;; Eval the cars of the lists until we find a match.
678 (not (eval (caar list
))))
679 (setq list
(cdr list
)))))
680 (unless (eq (setq face
(cdar list
)) (get-text-property beg
'face
))
681 (gnus-put-text-property-excluding-characters-with-faces
683 (if (boundp face
) (symbol-value face
) face
)))))
685 (defun gnus-tree-indent (level)
686 (insert (make-string (1- (* (1+ gnus-tree-node-length
) level
)) ?
)))
688 (defvar gnus-tmp-limit
)
689 (defvar gnus-tmp-sparse
)
690 (defvar gnus-tmp-indent
)
692 (defun gnus-generate-tree (thread)
693 "Generate a thread tree for THREAD."
695 (set-buffer (gnus-get-tree-buffer))
696 (let ((buffer-read-only nil
)
699 (funcall gnus-generate-tree-function thread
0)
700 (gnus-set-mode-line 'tree
)
701 (goto-char (point-min))
704 (let ((selected (selected-window)))
705 (when (gnus-get-buffer-window (set-buffer gnus-tree-buffer
) t
)
706 (select-window (gnus-get-buffer-window (set-buffer gnus-tree-buffer
) t
))
707 (gnus-horizontal-recenter)
708 (select-window selected
))))))
710 (defun gnus-generate-horizontal-tree (thread level
&optional dummyp adopted
)
711 "Generate a horizontal tree."
712 (let* ((dummy (stringp (car thread
)))
715 (memq (mail-header-number (car thread
))
719 ;; We don't want this article.
720 (setq thread
(cdr thread
))
722 ;; Not the first article on the line, so we insert a "-".
723 (insert (car gnus-tree-parent-child-edges
))
724 ;; If the level isn't zero, then we insert some indentation.
725 (unless (zerop level
)
726 (gnus-tree-indent level
)
727 (insert (cadr gnus-tree-parent-child-edges
))
728 (setq col
(- (setq beg
(point)) (gnus-point-at-bol) 1))
729 ;; Draw "|" lines upwards.
733 (eq (char-after) ?
))
735 (insert (caddr gnus-tree-parent-child-edges
)))
738 ;; Insert the article node.
739 (gnus-tree-node-insert (pop thread
) gnus-tmp-sparse adopted
))
741 ;; End of the thread, so we go to the next line.
744 ;; Recurse downwards in all children of this article.
746 (gnus-generate-horizontal-tree
747 (pop thread
) (if do
(1+ level
) level
)
748 (or dummyp dummy
) dummy
)))))
750 (defsubst gnus-tree-indent-vertical
()
751 (let ((len (- (* (1+ gnus-tree-node-length
) gnus-tmp-indent
)
752 (- (point) (gnus-point-at-bol)))))
754 (insert (make-string len ?
)))))
756 (defsubst gnus-tree-forward-line
(n)
757 (while (>= (decf n
) 0)
758 (unless (zerop (forward-line 1))
763 (defun gnus-generate-vertical-tree (thread level
&optional dummyp adopted
)
764 "Generate a vertical tree."
765 (let* ((dummy (stringp (car thread
)))
768 (memq (mail-header-number (car thread
))
772 ;; We don't want this article.
773 (setq thread
(cdr thread
))
774 (if (not (save-excursion (beginning-of-line) (bobp)))
775 ;; Not the first article on the line, so we insert a "-".
777 (gnus-tree-indent-vertical)
778 (insert (make-string (/ gnus-tree-node-length
2) ?
))
779 (insert (caddr gnus-tree-parent-child-edges
))
780 (gnus-tree-forward-line 1))
781 ;; If the level isn't zero, then we insert some indentation.
782 (unless (zerop gnus-tmp-indent
)
783 (gnus-tree-forward-line (1- (* 2 level
)))
784 (gnus-tree-indent-vertical)
786 (insert (cadr gnus-tree-parent-child-edges
))
789 ;; Draw "-" lines leftwards.
790 (while (and (> (point) 1)
791 (eq (char-after (1- (point))) ?
))
793 (insert (car gnus-tree-parent-child-edges
))
796 (gnus-tree-forward-line 1)))
798 ;; Insert the article node.
799 (gnus-tree-indent-vertical)
800 (gnus-tree-node-insert (pop thread
) gnus-tmp-sparse adopted
)
801 (gnus-tree-forward-line 1))
803 ;; End of the thread, so we go to the next line.
805 (goto-char (point-min))
807 (incf gnus-tmp-indent
))
808 ;; Recurse downwards in all children of this article.
810 (gnus-generate-vertical-tree
811 (pop thread
) (if do
(1+ level
) level
)
812 (or dummyp dummy
) dummy
)))))
814 ;;; Interface functions.
816 (defun gnus-possibly-generate-tree (article &optional force
)
817 "Generate the thread tree for ARTICLE if it isn't displayed already."
818 (when (save-excursion
819 (set-buffer gnus-summary-buffer
)
822 (vectorp (gnus-summary-article-header article
))))
824 (let ((top (save-excursion
825 (set-buffer gnus-summary-buffer
)
829 (gnus-summary-article-header article
))
831 (gnus-tmp-limit gnus-newsgroup-limit
)
832 (gnus-tmp-sparse gnus-newsgroup-sparse
))
834 (not (eq top gnus-tree-displayed-thread
)))
835 (gnus-generate-tree top
)
836 (setq gnus-tree-displayed-thread top
))))))
838 (defun gnus-tree-open (group)
839 (gnus-get-tree-buffer))
841 (defun gnus-tree-close (group)
842 (gnus-kill-buffer gnus-tree-buffer
))
844 (defun gnus-tree-perhaps-minimize ()
845 (when (and gnus-tree-minimize-window
846 (get-buffer gnus-tree-buffer
))
848 (set-buffer gnus-tree-buffer
)
849 (gnus-tree-minimize))))
851 (defun gnus-highlight-selected-tree (article)
852 "Highlight the selected article in the tree."
853 (let ((buf (current-buffer))
855 (set-buffer gnus-tree-buffer
)
856 (when (setq region
(gnus-tree-article-region article
))
857 (when (or (not gnus-selected-tree-overlay
)
858 (gnus-extent-detached-p gnus-selected-tree-overlay
))
859 ;; Create a new overlay.
861 (setq gnus-selected-tree-overlay
(gnus-make-overlay 1 2))
862 'face gnus-selected-tree-face
))
863 ;; Move the overlay to the article.
865 gnus-selected-tree-overlay
(goto-char (car region
)) (cdr region
))
868 (let ((selected (selected-window)))
869 (when (gnus-get-buffer-window (set-buffer gnus-tree-buffer
) t
)
870 (select-window (gnus-get-buffer-window (set-buffer gnus-tree-buffer
) t
))
871 (gnus-horizontal-recenter)
872 (select-window selected
))))
873 ;; If we remove this save-excursion, it updates the wrong mode lines?!?
875 (set-buffer gnus-tree-buffer
)
876 (gnus-set-mode-line 'tree
))
879 (defun gnus-tree-highlight-article (article face
)
881 (set-buffer (gnus-get-tree-buffer))
883 (when (setq region
(gnus-tree-article-region article
))
884 (gnus-put-text-property (car region
) (cdr region
) 'face face
)
886 (gnus-get-buffer-window (current-buffer) t
) (cdr region
))))))
892 (defvar gnus-carpal-group-buffer-buttons
893 '(("next" . gnus-group-next-unread-group
)
894 ("prev" . gnus-group-prev-unread-group
)
895 ("read" . gnus-group-read-group
)
896 ("select" . gnus-group-select-group
)
897 ("catch-up" . gnus-group-catchup-current
)
898 ("new-news" . gnus-group-get-new-news-this-group
)
899 ("toggle-sub" . gnus-group-unsubscribe-current-group
)
900 ("subscribe" . gnus-group-unsubscribe-group
)
901 ("kill" . gnus-group-kill-group
)
902 ("yank" . gnus-group-yank-group
)
903 ("describe" . gnus-group-describe-group
)
905 ("subscribed" . gnus-group-list-groups
)
906 ("all" . gnus-group-list-all-groups
)
907 ("killed" . gnus-group-list-killed
)
908 ("zombies" . gnus-group-list-zombies
)
909 ("matching" . gnus-group-list-matching
)
910 ("post" . gnus-group-post-news
)
911 ("mail" . gnus-group-mail
)
912 ("local" .
(lambda () (interactive) (gnus-group-news 0)))
913 ("rescan" . gnus-group-get-new-news
)
914 ("browse-foreign" . gnus-group-browse-foreign
)
915 ("exit" . gnus-group-exit
)))
917 (defvar gnus-carpal-summary-buffer-buttons
919 ("read" . gnus-summary-mark-as-read-forward
)
920 ("tick" . gnus-summary-tick-article-forward
)
921 ("clear" . gnus-summary-clear-mark-forward
)
922 ("expirable" . gnus-summary-mark-as-expirable
)
924 ("scroll" . gnus-summary-next-page
)
925 ("next-unread" . gnus-summary-next-unread-article
)
926 ("prev-unread" . gnus-summary-prev-unread-article
)
927 ("first" . gnus-summary-first-unread-article
)
928 ("best" . gnus-summary-best-unread-article
)
930 ("headers" . gnus-summary-toggle-header
)
931 ("uudecode" . gnus-uu-decode-uu
)
932 ("enter-digest" . gnus-summary-enter-digest-group
)
933 ("fetch-parent" . gnus-summary-refer-parent-article
)
935 ("move" . gnus-summary-move-article
)
936 ("copy" . gnus-summary-copy-article
)
937 ("respool" . gnus-summary-respool-article
)
939 ("lower" . gnus-summary-lower-thread
)
940 ("kill" . gnus-summary-kill-thread
)
942 ("post" . gnus-summary-post-news
)
943 ("local" . gnus-summary-news-other-window
)
944 ("mail" . gnus-summary-mail-other-window
)
945 ("followup" . gnus-summary-followup-with-original
)
946 ("reply" . gnus-summary-reply-with-original
)
947 ("cancel" . gnus-summary-cancel-article
)
949 ("exit" . gnus-summary-exit
)
950 ("fed-up" . gnus-summary-catchup-and-goto-next-group
)))
952 (defvar gnus-carpal-server-buffer-buttons
953 '(("add" . gnus-server-add-server
)
954 ("browse" . gnus-server-browse-server
)
955 ("list" . gnus-server-list-servers
)
956 ("kill" . gnus-server-kill-server
)
957 ("yank" . gnus-server-yank-server
)
958 ("copy" . gnus-server-copy-server
)
959 ("exit" . gnus-server-exit
)))
961 (defvar gnus-carpal-browse-buffer-buttons
962 '(("subscribe" . gnus-browse-unsubscribe-current-group
)
963 ("exit" . gnus-browse-exit
)))
965 (defvar gnus-carpal-group-buffer
"*Carpal Group*")
966 (defvar gnus-carpal-summary-buffer
"*Carpal Summary*")
967 (defvar gnus-carpal-server-buffer
"*Carpal Server*")
968 (defvar gnus-carpal-browse-buffer
"*Carpal Browse*")
970 (defvar gnus-carpal-attached-buffer nil
)
972 (defvar gnus-carpal-mode-hook nil
973 "*Hook run in carpal mode buffers.")
975 (defvar gnus-carpal-button-face
'bold
976 "*Face used on carpal buttons.")
978 (defvar gnus-carpal-header-face
'bold-italic
979 "*Face used on carpal buffer headers.")
981 (defvar gnus-carpal-mode-map nil
)
982 (put 'gnus-carpal-mode
'mode-class
'special
)
984 (if gnus-carpal-mode-map
986 (setq gnus-carpal-mode-map
(make-keymap))
987 (suppress-keymap gnus-carpal-mode-map
)
988 (define-key gnus-carpal-mode-map
" " 'gnus-carpal-select
)
989 (define-key gnus-carpal-mode-map
"\r" 'gnus-carpal-select
)
990 (define-key gnus-carpal-mode-map gnus-mouse-2
'gnus-carpal-mouse-select
))
992 (defun gnus-carpal-mode ()
993 "Major mode for clicking buttons.
995 All normal editing commands are switched off.
996 \\<gnus-carpal-mode-map>
997 The following commands are available:
999 \\{gnus-carpal-mode-map}"
1001 (kill-all-local-variables)
1002 (setq mode-line-modified
(cdr gnus-mode-line-modified
))
1003 (setq major-mode
'gnus-carpal-mode
)
1004 (setq mode-name
"Gnus Carpal")
1005 (setq mode-line-process nil
)
1006 (use-local-map gnus-carpal-mode-map
)
1007 (buffer-disable-undo)
1008 (setq buffer-read-only t
)
1009 (make-local-variable 'gnus-carpal-attached-buffer
)
1010 (gnus-run-hooks 'gnus-carpal-mode-hook
))
1012 (defun gnus-carpal-setup-buffer (type)
1013 (let ((buffer (symbol-value (intern (format "gnus-carpal-%s-buffer" type
)))))
1014 (if (get-buffer buffer
)
1017 (set-buffer (gnus-get-buffer-create buffer
))
1019 (setq gnus-carpal-attached-buffer
1020 (intern (format "gnus-%s-buffer" type
)))
1021 (let ((buttons (symbol-value
1022 (intern (format "gnus-carpal-%s-buffer-buttons"
1024 (buffer-read-only nil
)
1027 (setq button
(car buttons
)
1028 buttons
(cdr buttons
))
1029 (if (stringp button
)
1030 (gnus-set-text-properties
1032 (prog2 (insert button
) (point) (insert " "))
1033 (list 'face gnus-carpal-header-face
))
1034 (gnus-set-text-properties
1036 (prog2 (insert (car button
)) (point) (insert " "))
1037 (list 'gnus-callback
(cdr button
)
1038 'face gnus-carpal-button-face
1039 gnus-mouse-face-prop
'highlight
))))
1040 (let ((fill-column (- (window-width) 2)))
1041 (fill-region (point-min) (point-max)))
1042 (set-window-point (get-buffer-window (current-buffer))
1045 (defun gnus-carpal-select ()
1046 "Select the button under point."
1048 (let ((func (get-text-property (point) 'gnus-callback
)))
1051 (pop-to-buffer (symbol-value gnus-carpal-attached-buffer
))
1052 (call-interactively func
))))
1054 (defun gnus-carpal-mouse-select (event)
1055 "Select the button under the mouse pointer."
1057 (mouse-set-point event
)
1058 (gnus-carpal-select))
1060 ;;; Allow redefinition of functions.
1063 (provide 'gnus-salt
)
1065 ;;; arch-tag: 35449164-77b3-4398-bcbd-a2e3e998f810
1066 ;;; gnus-salt.el ends here