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eec82323 | 1 | ;;; gnus-salt.el --- alternate summary mode interfaces for Gnus |
16409b0b GM |
2 | |
3 | ;; Copyright (C) 1996, 1997, 1998, 1999 Free Software Foundation, Inc. | |
eec82323 | 4 | |
6748645f LMI |
5 | ;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org> |
6 | ;; Keywords: news | |
eec82323 LMI |
7 | |
8 | ;; This file is part of GNU Emacs. | |
9 | ||
10 | ;; GNU Emacs 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) | |
13 | ;; any later version. | |
14 | ||
15 | ;; GNU Emacs 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. | |
19 | ||
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. | |
24 | ||
25 | ;;; Commentary: | |
26 | ||
27 | ;;; Code: | |
28 | ||
5ab7173c RS |
29 | (eval-when-compile (require 'cl)) |
30 | ||
eec82323 LMI |
31 | (require 'gnus) |
32 | (require 'gnus-sum) | |
33 | ||
34 | ;;; | |
35 | ;;; gnus-pick-mode | |
36 | ;;; | |
37 | ||
38 | (defvar gnus-pick-mode nil | |
39 | "Minor mode for providing a pick-and-read interface in Gnus summary buffers.") | |
40 | ||
a8151ef7 LMI |
41 | (defcustom gnus-pick-display-summary nil |
42 | "*Display summary while reading." | |
43 | :type 'boolean | |
44 | :group 'gnus-summary-pick) | |
45 | ||
46 | (defcustom gnus-pick-mode-hook nil | |
47 | "Hook run in summary pick mode buffers." | |
48 | :type 'hook | |
49 | :group 'gnus-summary-pick) | |
50 | ||
51 | (defcustom gnus-mark-unpicked-articles-as-read nil | |
52 | "*If non-nil, mark all unpicked articles as read." | |
53 | :type 'boolean | |
54 | :group 'gnus-summary-pick) | |
55 | ||
56 | (defcustom gnus-pick-elegant-flow t | |
16409b0b | 57 | "If non-nil, `gnus-pick-start-reading' runs `gnus-summary-next-group' when no articles have been picked." |
a8151ef7 LMI |
58 | :type 'boolean |
59 | :group 'gnus-summary-pick) | |
60 | ||
61 | (defcustom gnus-summary-pick-line-format | |
eec82323 LMI |
62 | "%-5P %U\%R\%z\%I\%(%[%4L: %-20,20n%]%) %s\n" |
63 | "*The format specification of the lines in pick buffers. | |
a8151ef7 LMI |
64 | It accepts the same format specs that `gnus-summary-line-format' does." |
65 | :type 'string | |
66 | :group 'gnus-summary-pick) | |
eec82323 LMI |
67 | |
68 | ;;; Internal variables. | |
69 | ||
70 | (defvar gnus-pick-mode-map nil) | |
71 | ||
72 | (unless gnus-pick-mode-map | |
73 | (setq gnus-pick-mode-map (make-sparse-keymap)) | |
74 | ||
6748645f LMI |
75 | (gnus-define-keys gnus-pick-mode-map |
76 | " " gnus-pick-next-page | |
77 | "u" gnus-pick-unmark-article-or-thread | |
78 | "." gnus-pick-article-or-thread | |
79 | gnus-down-mouse-2 gnus-pick-mouse-pick-region | |
16409b0b | 80 | "\r" gnus-pick-start-reading)) |
eec82323 LMI |
81 | |
82 | (defun gnus-pick-make-menu-bar () | |
83 | (unless (boundp 'gnus-pick-menu) | |
84 | (easy-menu-define | |
85 | gnus-pick-menu gnus-pick-mode-map "" | |
86 | '("Pick" | |
87 | ("Pick" | |
88 | ["Article" gnus-summary-mark-as-processable t] | |
89 | ["Thread" gnus-uu-mark-thread t] | |
90 | ["Region" gnus-uu-mark-region t] | |
6748645f | 91 | ["Regexp" gnus-uu-mark-by-regexp t] |
eec82323 LMI |
92 | ["Buffer" gnus-uu-mark-buffer t]) |
93 | ("Unpick" | |
94 | ["Article" gnus-summary-unmark-as-processable t] | |
95 | ["Thread" gnus-uu-unmark-thread t] | |
96 | ["Region" gnus-uu-unmark-region t] | |
6748645f LMI |
97 | ["Regexp" gnus-uu-unmark-by-regexp t] |
98 | ["Buffer" gnus-summary-unmark-all-processable t]) | |
eec82323 LMI |
99 | ["Start reading" gnus-pick-start-reading t] |
100 | ["Switch pick mode off" gnus-pick-mode gnus-pick-mode])))) | |
101 | ||
102 | (defun gnus-pick-mode (&optional arg) | |
103 | "Minor mode for providing a pick-and-read interface in Gnus summary buffers. | |
104 | ||
105 | \\{gnus-pick-mode-map}" | |
106 | (interactive "P") | |
107 | (when (eq major-mode 'gnus-summary-mode) | |
108 | (if (not (set (make-local-variable 'gnus-pick-mode) | |
109 | (if (null arg) (not gnus-pick-mode) | |
110 | (> (prefix-numeric-value arg) 0)))) | |
111 | (remove-hook 'gnus-message-setup-hook 'gnus-pick-setup-message) | |
112 | ;; Make sure that we don't select any articles upon group entry. | |
113 | (set (make-local-variable 'gnus-auto-select-first) nil) | |
114 | ;; Change line format. | |
115 | (setq gnus-summary-line-format gnus-summary-pick-line-format) | |
116 | (setq gnus-summary-line-format-spec nil) | |
117 | (gnus-update-format-specifications nil 'summary) | |
118 | (gnus-update-summary-mark-positions) | |
119 | (add-hook 'gnus-message-setup-hook 'gnus-pick-setup-message) | |
120 | (set (make-local-variable 'gnus-summary-goto-unread) 'never) | |
121 | ;; Set up the menu. | |
122 | (when (gnus-visual-p 'pick-menu 'menu) | |
123 | (gnus-pick-make-menu-bar)) | |
16409b0b GM |
124 | (gnus-add-minor-mode 'gnus-pick-mode " Pick" gnus-pick-mode-map |
125 | nil 'gnus-pick-mode) | |
6748645f | 126 | (gnus-run-hooks 'gnus-pick-mode-hook)))) |
eec82323 LMI |
127 | |
128 | (defun gnus-pick-setup-message () | |
129 | "Make Message do the right thing on exit." | |
130 | (when (and (gnus-buffer-live-p gnus-summary-buffer) | |
131 | (save-excursion | |
132 | (set-buffer gnus-summary-buffer) | |
133 | gnus-pick-mode)) | |
134 | (message-add-action | |
16409b0b GM |
135 | '(gnus-configure-windows ,gnus-current-window-configuration t) |
136 | 'send 'exit 'postpone 'kill))) | |
eec82323 LMI |
137 | |
138 | (defvar gnus-pick-line-number 1) | |
139 | (defun gnus-pick-line-number () | |
140 | "Return the current line number." | |
141 | (if (bobp) | |
142 | (setq gnus-pick-line-number 1) | |
143 | (incf gnus-pick-line-number))) | |
144 | ||
145 | (defun gnus-pick-start-reading (&optional catch-up) | |
146 | "Start reading the picked articles. | |
147 | If given a prefix, mark all unpicked articles as read." | |
148 | (interactive "P") | |
149 | (if gnus-newsgroup-processable | |
150 | (progn | |
151 | (gnus-summary-limit-to-articles nil) | |
152 | (when (or catch-up gnus-mark-unpicked-articles-as-read) | |
153 | (gnus-summary-limit-mark-excluded-as-read)) | |
154 | (gnus-summary-first-article) | |
155 | (gnus-configure-windows | |
156 | (if gnus-pick-display-summary 'article 'pick) t)) | |
157 | (if gnus-pick-elegant-flow | |
158 | (progn | |
159 | (when (or catch-up gnus-mark-unpicked-articles-as-read) | |
a8151ef7 | 160 | (gnus-summary-catchup nil t)) |
eec82323 LMI |
161 | (if (gnus-group-quit-config gnus-newsgroup-name) |
162 | (gnus-summary-exit) | |
163 | (gnus-summary-next-group))) | |
164 | (error "No articles have been picked")))) | |
165 | ||
6748645f | 166 | (defun gnus-pick-goto-article (arg) |
16409b0b GM |
167 | "Go to the article number indicated by ARG. |
168 | If ARG is an invalid article number, then stay on current line." | |
6748645f LMI |
169 | (let (pos) |
170 | (save-excursion | |
171 | (goto-char (point-min)) | |
172 | (when (zerop (forward-line (1- (prefix-numeric-value arg)))) | |
173 | (setq pos (point)))) | |
174 | (if (not pos) | |
175 | (gnus-error 2 "No such line: %s" arg) | |
176 | (goto-char pos)))) | |
16409b0b | 177 | |
eec82323 | 178 | (defun gnus-pick-article (&optional arg) |
16409b0b | 179 | "Pick the article on the current line. |
eec82323 LMI |
180 | If ARG, pick the article on that line instead." |
181 | (interactive "P") | |
182 | (when arg | |
6748645f | 183 | (gnus-pick-goto-article arg)) |
eec82323 LMI |
184 | (gnus-summary-mark-as-processable 1)) |
185 | ||
6748645f | 186 | (defun gnus-pick-article-or-thread (&optional arg) |
16409b0b | 187 | "If `gnus-thread-hide-subtree' is t, then pick the thread on the current line. |
6748645f LMI |
188 | Otherwise pick the article on the current line. |
189 | If ARG, pick the article/thread on that line instead." | |
190 | (interactive "P") | |
191 | (when arg | |
192 | (gnus-pick-goto-article arg)) | |
193 | (if gnus-thread-hide-subtree | |
16409b0b GM |
194 | (progn |
195 | (save-excursion | |
196 | (gnus-uu-mark-thread)) | |
197 | (forward-line 1)) | |
6748645f | 198 | (gnus-summary-mark-as-processable 1))) |
16409b0b | 199 | |
6748645f | 200 | (defun gnus-pick-unmark-article-or-thread (&optional arg) |
16409b0b | 201 | "If `gnus-thread-hide-subtree' is t, then unmark the thread on current line. |
6748645f LMI |
202 | Otherwise unmark the article on current line. |
203 | If ARG, unmark thread/article on that line instead." | |
204 | (interactive "P") | |
205 | (when arg | |
206 | (gnus-pick-goto-article arg)) | |
207 | (if gnus-thread-hide-subtree | |
16409b0b GM |
208 | (save-excursion |
209 | (gnus-uu-unmark-thread)) | |
6748645f | 210 | (gnus-summary-unmark-as-processable 1))) |
16409b0b | 211 | |
eec82323 LMI |
212 | (defun gnus-pick-mouse-pick (e) |
213 | (interactive "e") | |
214 | (mouse-set-point e) | |
215 | (save-excursion | |
216 | (gnus-summary-mark-as-processable 1))) | |
217 | ||
218 | (defun gnus-pick-mouse-pick-region (start-event) | |
219 | "Pick articles that the mouse is dragged over. | |
220 | This must be bound to a button-down mouse event." | |
221 | (interactive "e") | |
222 | (mouse-minibuffer-check start-event) | |
223 | (let* ((echo-keystrokes 0) | |
224 | (start-posn (event-start start-event)) | |
225 | (start-point (posn-point start-posn)) | |
226 | (start-line (1+ (count-lines 1 start-point))) | |
227 | (start-window (posn-window start-posn)) | |
6748645f | 228 | (bounds (gnus-window-edges start-window)) |
eec82323 LMI |
229 | (top (nth 1 bounds)) |
230 | (bottom (if (window-minibuffer-p start-window) | |
231 | (nth 3 bounds) | |
232 | ;; Don't count the mode line. | |
233 | (1- (nth 3 bounds)))) | |
234 | (click-count (1- (event-click-count start-event)))) | |
235 | (setq mouse-selection-click-count click-count) | |
236 | (setq mouse-selection-click-count-buffer (current-buffer)) | |
237 | (mouse-set-point start-event) | |
238 | ;; In case the down click is in the middle of some intangible text, | |
239 | ;; use the end of that text, and put it in START-POINT. | |
240 | (when (< (point) start-point) | |
241 | (goto-char start-point)) | |
242 | (gnus-pick-article) | |
243 | (setq start-point (point)) | |
244 | ;; end-of-range is used only in the single-click case. | |
245 | ;; It is the place where the drag has reached so far | |
246 | ;; (but not outside the window where the drag started). | |
6748645f | 247 | (let (event end end-point (end-of-range (point))) |
eec82323 | 248 | (track-mouse |
16409b0b GM |
249 | (while (progn |
250 | (setq event (cdr (gnus-read-event-char))) | |
251 | (or (mouse-movement-p event) | |
252 | (eq (car-safe event) 'switch-frame))) | |
253 | (if (eq (car-safe event) 'switch-frame) | |
254 | nil | |
255 | (setq end (event-end event) | |
256 | end-point (posn-point end)) | |
257 | ||
258 | (cond | |
259 | ;; Are we moving within the original window? | |
260 | ((and (eq (posn-window end) start-window) | |
261 | (integer-or-marker-p end-point)) | |
262 | ;; Go to START-POINT first, so that when we move to END-POINT, | |
263 | ;; if it's in the middle of intangible text, | |
264 | ;; point jumps in the direction away from START-POINT. | |
265 | (goto-char start-point) | |
266 | (goto-char end-point) | |
267 | (gnus-pick-article) | |
268 | ;; In case the user moved his mouse really fast, pick | |
269 | ;; articles on the line between this one and the last one. | |
270 | (let* ((this-line (1+ (count-lines 1 end-point))) | |
271 | (min-line (min this-line start-line)) | |
272 | (max-line (max this-line start-line))) | |
273 | (while (< min-line max-line) | |
274 | (goto-line min-line) | |
275 | (gnus-pick-article) | |
276 | (setq min-line (1+ min-line))) | |
277 | (setq start-line this-line)) | |
278 | (when (zerop (% click-count 3)) | |
279 | (setq end-of-range (point)))) | |
280 | (t | |
281 | (let ((mouse-row (cdr (cdr (mouse-position))))) | |
282 | (cond | |
283 | ((null mouse-row)) | |
284 | ((< mouse-row top) | |
285 | (mouse-scroll-subr start-window (- mouse-row top))) | |
286 | ((>= mouse-row bottom) | |
287 | (mouse-scroll-subr start-window | |
288 | (1+ (- mouse-row bottom))))))))))) | |
eec82323 LMI |
289 | (when (consp event) |
290 | (let ((fun (key-binding (vector (car event))))) | |
291 | ;; Run the binding of the terminating up-event, if possible. | |
292 | ;; In the case of a multiple click, it gives the wrong results, | |
293 | ;; because it would fail to set up a region. | |
294 | (when nil | |
295 | ;; (and (= (mod mouse-selection-click-count 3) 0) (fboundp fun)) | |
296 | ;; In this case, we can just let the up-event execute normally. | |
297 | (let ((end (event-end event))) | |
298 | ;; Set the position in the event before we replay it, | |
299 | ;; because otherwise it may have a position in the wrong | |
300 | ;; buffer. | |
301 | (setcar (cdr end) end-of-range) | |
302 | ;; Delete the overlay before calling the function, | |
303 | ;; because delete-overlay increases buffer-modified-tick. | |
304 | (push event unread-command-events)))))))) | |
305 | ||
306 | (defun gnus-pick-next-page () | |
307 | "Go to the next page. If at the end of the buffer, start reading articles." | |
308 | (interactive) | |
309 | (let ((scroll-in-place nil)) | |
310 | (condition-case nil | |
311 | (scroll-up) | |
312 | (end-of-buffer (gnus-pick-start-reading))))) | |
313 | ||
314 | ;;; | |
315 | ;;; gnus-binary-mode | |
316 | ;;; | |
317 | ||
318 | (defvar gnus-binary-mode nil | |
319 | "Minor mode for providing a binary group interface in Gnus summary buffers.") | |
320 | ||
321 | (defvar gnus-binary-mode-hook nil | |
322 | "Hook run in summary binary mode buffers.") | |
323 | ||
324 | (defvar gnus-binary-mode-map nil) | |
325 | ||
326 | (unless gnus-binary-mode-map | |
327 | (setq gnus-binary-mode-map (make-sparse-keymap)) | |
328 | ||
329 | (gnus-define-keys | |
16409b0b GM |
330 | gnus-binary-mode-map |
331 | "g" gnus-binary-show-article)) | |
eec82323 LMI |
332 | |
333 | (defun gnus-binary-make-menu-bar () | |
334 | (unless (boundp 'gnus-binary-menu) | |
335 | (easy-menu-define | |
336 | gnus-binary-menu gnus-binary-mode-map "" | |
337 | '("Pick" | |
338 | ["Switch binary mode off" gnus-binary-mode t])))) | |
339 | ||
340 | (defun gnus-binary-mode (&optional arg) | |
341 | "Minor mode for providing a binary group interface in Gnus summary buffers." | |
342 | (interactive "P") | |
343 | (when (eq major-mode 'gnus-summary-mode) | |
344 | (make-local-variable 'gnus-binary-mode) | |
345 | (setq gnus-binary-mode | |
346 | (if (null arg) (not gnus-binary-mode) | |
347 | (> (prefix-numeric-value arg) 0))) | |
348 | (when gnus-binary-mode | |
349 | ;; Make sure that we don't select any articles upon group entry. | |
350 | (make-local-variable 'gnus-auto-select-first) | |
351 | (setq gnus-auto-select-first nil) | |
352 | (make-local-variable 'gnus-summary-display-article-function) | |
353 | (setq gnus-summary-display-article-function 'gnus-binary-display-article) | |
354 | ;; Set up the menu. | |
355 | (when (gnus-visual-p 'binary-menu 'menu) | |
356 | (gnus-binary-make-menu-bar)) | |
16409b0b | 357 | (gnus-add-minor-mode 'gnus-binary-mode " Binary" |
cb9040ed | 358 | gnus-binary-mode-map nil 'gnus-binary-mode) |
6748645f | 359 | (gnus-run-hooks 'gnus-binary-mode-hook)))) |
eec82323 LMI |
360 | |
361 | (defun gnus-binary-display-article (article &optional all-header) | |
362 | "Run ARTICLE through the binary decode functions." | |
363 | (when (gnus-summary-goto-subject article) | |
364 | (let ((gnus-view-pseudos 'automatic)) | |
365 | (gnus-uu-decode-uu)))) | |
366 | ||
367 | (defun gnus-binary-show-article (&optional arg) | |
368 | "Bypass the binary functions and show the article." | |
369 | (interactive "P") | |
370 | (let (gnus-summary-display-article-function) | |
371 | (gnus-summary-show-article arg))) | |
372 | ||
373 | ;;; | |
374 | ;;; gnus-tree-mode | |
375 | ;;; | |
376 | ||
a8151ef7 LMI |
377 | (defcustom gnus-tree-line-format "%(%[%3,3n%]%)" |
378 | "Format of tree elements." | |
379 | :type 'string | |
380 | :group 'gnus-summary-tree) | |
eec82323 | 381 | |
a8151ef7 | 382 | (defcustom gnus-tree-minimize-window t |
eec82323 LMI |
383 | "If non-nil, minimize the tree buffer window. |
384 | If a number, never let the tree buffer grow taller than that number of | |
a8151ef7 | 385 | lines." |
6748645f LMI |
386 | :type '(choice boolean |
387 | integer) | |
a8151ef7 | 388 | :group 'gnus-summary-tree) |
eec82323 | 389 | |
a8151ef7 LMI |
390 | (defcustom gnus-selected-tree-face 'modeline |
391 | "*Face used for highlighting selected articles in the thread tree." | |
392 | :type 'face | |
393 | :group 'gnus-summary-tree) | |
eec82323 LMI |
394 | |
395 | (defvar gnus-tree-brackets '((?\[ . ?\]) (?\( . ?\)) | |
396 | (?\{ . ?\}) (?< . ?>)) | |
397 | "Brackets used in tree nodes.") | |
398 | ||
399 | (defvar gnus-tree-parent-child-edges '(?- ?\\ ?|) | |
400 | "Characters used to connect parents with children.") | |
401 | ||
a8151ef7 LMI |
402 | (defcustom gnus-tree-mode-line-format "Gnus: %%b %S %Z" |
403 | "*The format specification for the tree mode line." | |
404 | :type 'string | |
405 | :group 'gnus-summary-tree) | |
eec82323 | 406 | |
a8151ef7 | 407 | (defcustom gnus-generate-tree-function 'gnus-generate-vertical-tree |
eec82323 LMI |
408 | "*Function for generating a thread tree. |
409 | Two predefined functions are available: | |
a8151ef7 LMI |
410 | `gnus-generate-horizontal-tree' and `gnus-generate-vertical-tree'." |
411 | :type '(radio (function-item gnus-generate-vertical-tree) | |
412 | (function-item gnus-generate-horizontal-tree) | |
413 | (function :tag "Other" nil)) | |
414 | :group 'gnus-summary-tree) | |
eec82323 | 415 | |
a8151ef7 LMI |
416 | (defcustom gnus-tree-mode-hook nil |
417 | "*Hook run in tree mode buffers." | |
418 | :type 'hook | |
419 | :group 'gnus-summary-tree) | |
eec82323 LMI |
420 | |
421 | ;;; Internal variables. | |
422 | ||
423 | (defvar gnus-tree-line-format-alist | |
424 | `((?n gnus-tmp-name ?s) | |
425 | (?f gnus-tmp-from ?s) | |
426 | (?N gnus-tmp-number ?d) | |
427 | (?\[ gnus-tmp-open-bracket ?c) | |
428 | (?\] gnus-tmp-close-bracket ?c) | |
429 | (?s gnus-tmp-subject ?s))) | |
430 | ||
431 | (defvar gnus-tree-mode-line-format-alist gnus-summary-mode-line-format-alist) | |
432 | ||
433 | (defvar gnus-tree-mode-line-format-spec nil) | |
434 | (defvar gnus-tree-line-format-spec nil) | |
435 | ||
436 | (defvar gnus-tree-node-length nil) | |
437 | (defvar gnus-selected-tree-overlay nil) | |
438 | ||
439 | (defvar gnus-tree-displayed-thread nil) | |
16409b0b | 440 | (defvar gnus-tree-inhibit nil) |
eec82323 LMI |
441 | |
442 | (defvar gnus-tree-mode-map nil) | |
443 | (put 'gnus-tree-mode 'mode-class 'special) | |
444 | ||
445 | (unless gnus-tree-mode-map | |
446 | (setq gnus-tree-mode-map (make-keymap)) | |
447 | (suppress-keymap gnus-tree-mode-map) | |
448 | (gnus-define-keys | |
16409b0b GM |
449 | gnus-tree-mode-map |
450 | "\r" gnus-tree-select-article | |
451 | gnus-mouse-2 gnus-tree-pick-article | |
452 | "\C-?" gnus-tree-read-summary-keys | |
453 | "h" gnus-tree-show-summary | |
eec82323 | 454 | |
16409b0b | 455 | "\C-c\C-i" gnus-info-find-node) |
eec82323 LMI |
456 | |
457 | (substitute-key-definition | |
458 | 'undefined 'gnus-tree-read-summary-keys gnus-tree-mode-map)) | |
459 | ||
460 | (defun gnus-tree-make-menu-bar () | |
461 | (unless (boundp 'gnus-tree-menu) | |
462 | (easy-menu-define | |
463 | gnus-tree-menu gnus-tree-mode-map "" | |
464 | '("Tree" | |
465 | ["Select article" gnus-tree-select-article t])))) | |
466 | ||
467 | (defun gnus-tree-mode () | |
468 | "Major mode for displaying thread trees." | |
469 | (interactive) | |
6748645f LMI |
470 | (gnus-set-format 'tree-mode) |
471 | (gnus-set-format 'tree t) | |
eec82323 LMI |
472 | (when (gnus-visual-p 'tree-menu 'menu) |
473 | (gnus-tree-make-menu-bar)) | |
474 | (kill-all-local-variables) | |
475 | (gnus-simplify-mode-line) | |
476 | (setq mode-name "Tree") | |
477 | (setq major-mode 'gnus-tree-mode) | |
478 | (use-local-map gnus-tree-mode-map) | |
16409b0b | 479 | (buffer-disable-undo) |
eec82323 LMI |
480 | (setq buffer-read-only t) |
481 | (setq truncate-lines t) | |
482 | (save-excursion | |
483 | (gnus-set-work-buffer) | |
484 | (gnus-tree-node-insert (make-mail-header "") nil) | |
485 | (setq gnus-tree-node-length (1- (point)))) | |
6748645f | 486 | (gnus-run-hooks 'gnus-tree-mode-hook)) |
eec82323 LMI |
487 | |
488 | (defun gnus-tree-read-summary-keys (&optional arg) | |
489 | "Read a summary buffer key sequence and execute it." | |
490 | (interactive "P") | |
16409b0b GM |
491 | (unless gnus-tree-inhibit |
492 | (let ((buf (current-buffer)) | |
493 | (gnus-tree-inhibit t) | |
494 | win) | |
495 | (set-buffer gnus-article-buffer) | |
496 | (gnus-article-read-summary-keys arg nil t) | |
497 | (when (setq win (get-buffer-window buf)) | |
498 | (select-window win) | |
499 | (when gnus-selected-tree-overlay | |
500 | (goto-char (or (gnus-overlay-end gnus-selected-tree-overlay) 1))) | |
501 | (gnus-tree-minimize))))) | |
eec82323 | 502 | |
a8151ef7 LMI |
503 | (defun gnus-tree-show-summary () |
504 | "Reconfigure windows to show summary buffer." | |
505 | (interactive) | |
506 | (if (not (gnus-buffer-live-p gnus-summary-buffer)) | |
507 | (error "There is no summary buffer for this tree buffer") | |
508 | (gnus-configure-windows 'article) | |
509 | (gnus-summary-goto-subject gnus-current-article))) | |
510 | ||
eec82323 LMI |
511 | (defun gnus-tree-select-article (article) |
512 | "Select the article under point, if any." | |
513 | (interactive (list (gnus-tree-article-number))) | |
514 | (let ((buf (current-buffer))) | |
515 | (when article | |
516 | (save-excursion | |
517 | (set-buffer gnus-summary-buffer) | |
518 | (gnus-summary-goto-article article)) | |
519 | (select-window (get-buffer-window buf))))) | |
520 | ||
521 | (defun gnus-tree-pick-article (e) | |
522 | "Select the article under the mouse pointer." | |
523 | (interactive "e") | |
524 | (mouse-set-point e) | |
525 | (gnus-tree-select-article (gnus-tree-article-number))) | |
526 | ||
527 | (defun gnus-tree-article-number () | |
528 | (get-text-property (point) 'gnus-number)) | |
529 | ||
530 | (defun gnus-tree-article-region (article) | |
531 | "Return a cons with BEG and END of the article region." | |
16409b0b GM |
532 | (let ((pos (text-property-any |
533 | (point-min) (point-max) 'gnus-number article))) | |
eec82323 LMI |
534 | (when pos |
535 | (cons pos (next-single-property-change pos 'gnus-number))))) | |
536 | ||
537 | (defun gnus-tree-goto-article (article) | |
16409b0b GM |
538 | (let ((pos (text-property-any |
539 | (point-min) (point-max) 'gnus-number article))) | |
eec82323 LMI |
540 | (when pos |
541 | (goto-char pos)))) | |
542 | ||
543 | (defun gnus-tree-recenter () | |
544 | "Center point in the tree window." | |
545 | (let ((selected (selected-window)) | |
546 | (tree-window (get-buffer-window gnus-tree-buffer t))) | |
547 | (when tree-window | |
548 | (select-window tree-window) | |
549 | (when gnus-selected-tree-overlay | |
550 | (goto-char (or (gnus-overlay-end gnus-selected-tree-overlay) 1))) | |
551 | (let* ((top (cond ((< (window-height) 4) 0) | |
552 | ((< (window-height) 7) 1) | |
553 | (t 2))) | |
554 | (height (1- (window-height))) | |
555 | (bottom (save-excursion (goto-char (point-max)) | |
556 | (forward-line (- height)) | |
557 | (point)))) | |
558 | ;; Set the window start to either `bottom', which is the biggest | |
559 | ;; possible valid number, or the second line from the top, | |
560 | ;; whichever is the least. | |
561 | (set-window-start | |
562 | tree-window (min bottom (save-excursion | |
563 | (forward-line (- top)) (point))))) | |
564 | (select-window selected)))) | |
565 | ||
566 | (defun gnus-get-tree-buffer () | |
567 | "Return the tree buffer properly initialized." | |
568 | (save-excursion | |
6748645f | 569 | (set-buffer (gnus-get-buffer-create gnus-tree-buffer)) |
eec82323 | 570 | (unless (eq major-mode 'gnus-tree-mode) |
eec82323 LMI |
571 | (gnus-tree-mode)) |
572 | (current-buffer))) | |
573 | ||
574 | (defun gnus-tree-minimize () | |
575 | (when (and gnus-tree-minimize-window | |
576 | (not (one-window-p))) | |
577 | (let ((windows 0) | |
578 | tot-win-height) | |
579 | (walk-windows (lambda (window) (incf windows))) | |
580 | (setq tot-win-height | |
581 | (- (frame-height) | |
582 | (* window-min-height (1- windows)) | |
583 | 2)) | |
584 | (let* ((window-min-height 2) | |
585 | (height (count-lines (point-min) (point-max))) | |
586 | (min (max (1- window-min-height) height)) | |
587 | (tot (if (numberp gnus-tree-minimize-window) | |
588 | (min gnus-tree-minimize-window min) | |
589 | min)) | |
590 | (win (get-buffer-window (current-buffer))) | |
591 | (wh (and win (1- (window-height win))))) | |
592 | (setq tot (min tot tot-win-height)) | |
593 | (when (and win | |
594 | (not (eq tot wh))) | |
595 | (let ((selected (selected-window))) | |
596 | (when (ignore-errors (select-window win)) | |
597 | (enlarge-window (- tot wh)) | |
598 | (select-window selected)))))))) | |
599 | ||
600 | ;;; Generating the tree. | |
601 | ||
602 | (defun gnus-tree-node-insert (header sparse &optional adopted) | |
603 | (let* ((dummy (stringp header)) | |
604 | (header (if (vectorp header) header | |
605 | (progn | |
606 | (setq header (make-mail-header "*****")) | |
607 | (mail-header-set-number header 0) | |
608 | (mail-header-set-lines header 0) | |
609 | (mail-header-set-chars header 0) | |
610 | header))) | |
611 | (gnus-tmp-from (mail-header-from header)) | |
612 | (gnus-tmp-subject (mail-header-subject header)) | |
613 | (gnus-tmp-number (mail-header-number header)) | |
614 | (gnus-tmp-name | |
615 | (cond | |
616 | ((string-match "(.+)" gnus-tmp-from) | |
617 | (substring gnus-tmp-from | |
618 | (1+ (match-beginning 0)) (1- (match-end 0)))) | |
619 | ((string-match "<[^>]+> *$" gnus-tmp-from) | |
620 | (let ((beg (match-beginning 0))) | |
621 | (or (and (string-match "^\"[^\"]*\"" gnus-tmp-from) | |
622 | (substring gnus-tmp-from (1+ (match-beginning 0)) | |
623 | (1- (match-end 0)))) | |
624 | (substring gnus-tmp-from 0 beg)))) | |
625 | ((memq gnus-tmp-number sparse) | |
626 | "***") | |
627 | (t gnus-tmp-from))) | |
628 | (gnus-tmp-open-bracket | |
629 | (cond ((memq gnus-tmp-number sparse) | |
630 | (caadr gnus-tree-brackets)) | |
631 | (dummy (caaddr gnus-tree-brackets)) | |
632 | (adopted (car (nth 3 gnus-tree-brackets))) | |
633 | (t (caar gnus-tree-brackets)))) | |
634 | (gnus-tmp-close-bracket | |
635 | (cond ((memq gnus-tmp-number sparse) | |
636 | (cdadr gnus-tree-brackets)) | |
637 | (adopted (cdr (nth 3 gnus-tree-brackets))) | |
638 | (dummy | |
639 | (cdaddr gnus-tree-brackets)) | |
640 | (t (cdar gnus-tree-brackets)))) | |
641 | (buffer-read-only nil) | |
642 | beg end) | |
643 | (gnus-add-text-properties | |
644 | (setq beg (point)) | |
645 | (setq end (progn (eval gnus-tree-line-format-spec) (point))) | |
646 | (list 'gnus-number gnus-tmp-number)) | |
647 | (when (or t (gnus-visual-p 'tree-highlight 'highlight)) | |
648 | (gnus-tree-highlight-node gnus-tmp-number beg end)))) | |
649 | ||
650 | (defun gnus-tree-highlight-node (article beg end) | |
651 | "Highlight current line according to `gnus-summary-highlight'." | |
652 | (let ((list gnus-summary-highlight) | |
653 | face) | |
654 | (save-excursion | |
655 | (set-buffer gnus-summary-buffer) | |
656 | (let* ((score (or (cdr (assq article gnus-newsgroup-scored)) | |
657 | gnus-summary-default-score 0)) | |
658 | (default gnus-summary-default-score) | |
659 | (mark (or (gnus-summary-article-mark article) gnus-unread-mark))) | |
660 | ;; Eval the cars of the lists until we find a match. | |
661 | (while (and list | |
662 | (not (eval (caar list)))) | |
663 | (setq list (cdr list))))) | |
664 | (unless (eq (setq face (cdar list)) (get-text-property beg 'face)) | |
6748645f | 665 | (gnus-put-text-property-excluding-characters-with-faces |
eec82323 LMI |
666 | beg end 'face |
667 | (if (boundp face) (symbol-value face) face))))) | |
668 | ||
669 | (defun gnus-tree-indent (level) | |
670 | (insert (make-string (1- (* (1+ gnus-tree-node-length) level)) ? ))) | |
671 | ||
672 | (defvar gnus-tmp-limit) | |
673 | (defvar gnus-tmp-sparse) | |
674 | (defvar gnus-tmp-indent) | |
675 | ||
676 | (defun gnus-generate-tree (thread) | |
677 | "Generate a thread tree for THREAD." | |
678 | (save-excursion | |
679 | (set-buffer (gnus-get-tree-buffer)) | |
680 | (let ((buffer-read-only nil) | |
681 | (gnus-tmp-indent 0)) | |
682 | (erase-buffer) | |
683 | (funcall gnus-generate-tree-function thread 0) | |
684 | (gnus-set-mode-line 'tree) | |
685 | (goto-char (point-min)) | |
686 | (gnus-tree-minimize) | |
687 | (gnus-tree-recenter) | |
688 | (let ((selected (selected-window))) | |
689 | (when (get-buffer-window (set-buffer gnus-tree-buffer) t) | |
690 | (select-window (get-buffer-window (set-buffer gnus-tree-buffer) t)) | |
691 | (gnus-horizontal-recenter) | |
692 | (select-window selected)))))) | |
693 | ||
694 | (defun gnus-generate-horizontal-tree (thread level &optional dummyp adopted) | |
695 | "Generate a horizontal tree." | |
696 | (let* ((dummy (stringp (car thread))) | |
697 | (do (or dummy | |
a8151ef7 LMI |
698 | (and (car thread) |
699 | (memq (mail-header-number (car thread)) | |
700 | gnus-tmp-limit)))) | |
eec82323 LMI |
701 | col beg) |
702 | (if (not do) | |
703 | ;; We don't want this article. | |
704 | (setq thread (cdr thread)) | |
705 | (if (not (bolp)) | |
706 | ;; Not the first article on the line, so we insert a "-". | |
707 | (insert (car gnus-tree-parent-child-edges)) | |
708 | ;; If the level isn't zero, then we insert some indentation. | |
709 | (unless (zerop level) | |
710 | (gnus-tree-indent level) | |
711 | (insert (cadr gnus-tree-parent-child-edges)) | |
712 | (setq col (- (setq beg (point)) (gnus-point-at-bol) 1)) | |
713 | ;; Draw "|" lines upwards. | |
714 | (while (progn | |
715 | (forward-line -1) | |
716 | (forward-char col) | |
16409b0b | 717 | (eq (char-after) ? )) |
eec82323 LMI |
718 | (delete-char 1) |
719 | (insert (caddr gnus-tree-parent-child-edges))) | |
720 | (goto-char beg))) | |
721 | (setq dummyp nil) | |
722 | ;; Insert the article node. | |
723 | (gnus-tree-node-insert (pop thread) gnus-tmp-sparse adopted)) | |
724 | (if (null thread) | |
725 | ;; End of the thread, so we go to the next line. | |
726 | (unless (bolp) | |
727 | (insert "\n")) | |
728 | ;; Recurse downwards in all children of this article. | |
729 | (while thread | |
730 | (gnus-generate-horizontal-tree | |
731 | (pop thread) (if do (1+ level) level) | |
732 | (or dummyp dummy) dummy))))) | |
733 | ||
734 | (defsubst gnus-tree-indent-vertical () | |
735 | (let ((len (- (* (1+ gnus-tree-node-length) gnus-tmp-indent) | |
736 | (- (point) (gnus-point-at-bol))))) | |
737 | (when (> len 0) | |
738 | (insert (make-string len ? ))))) | |
739 | ||
740 | (defsubst gnus-tree-forward-line (n) | |
741 | (while (>= (decf n) 0) | |
742 | (unless (zerop (forward-line 1)) | |
743 | (end-of-line) | |
744 | (insert "\n"))) | |
745 | (end-of-line)) | |
746 | ||
747 | (defun gnus-generate-vertical-tree (thread level &optional dummyp adopted) | |
748 | "Generate a vertical tree." | |
749 | (let* ((dummy (stringp (car thread))) | |
750 | (do (or dummy | |
751 | (and (car thread) | |
752 | (memq (mail-header-number (car thread)) | |
753 | gnus-tmp-limit)))) | |
754 | beg) | |
755 | (if (not do) | |
756 | ;; We don't want this article. | |
757 | (setq thread (cdr thread)) | |
758 | (if (not (save-excursion (beginning-of-line) (bobp))) | |
759 | ;; Not the first article on the line, so we insert a "-". | |
760 | (progn | |
761 | (gnus-tree-indent-vertical) | |
762 | (insert (make-string (/ gnus-tree-node-length 2) ? )) | |
763 | (insert (caddr gnus-tree-parent-child-edges)) | |
764 | (gnus-tree-forward-line 1)) | |
765 | ;; If the level isn't zero, then we insert some indentation. | |
766 | (unless (zerop gnus-tmp-indent) | |
767 | (gnus-tree-forward-line (1- (* 2 level))) | |
768 | (gnus-tree-indent-vertical) | |
769 | (delete-char -1) | |
770 | (insert (cadr gnus-tree-parent-child-edges)) | |
771 | (setq beg (point)) | |
a8151ef7 | 772 | (forward-char -1) |
eec82323 | 773 | ;; Draw "-" lines leftwards. |
6748645f | 774 | (while (and (> (point) 1) |
16409b0b | 775 | (eq (char-after (1- (point))) ? )) |
a8151ef7 LMI |
776 | (delete-char -1) |
777 | (insert (car gnus-tree-parent-child-edges)) | |
778 | (forward-char -1)) | |
eec82323 LMI |
779 | (goto-char beg) |
780 | (gnus-tree-forward-line 1))) | |
781 | (setq dummyp nil) | |
782 | ;; Insert the article node. | |
783 | (gnus-tree-indent-vertical) | |
784 | (gnus-tree-node-insert (pop thread) gnus-tmp-sparse adopted) | |
785 | (gnus-tree-forward-line 1)) | |
786 | (if (null thread) | |
787 | ;; End of the thread, so we go to the next line. | |
788 | (progn | |
789 | (goto-char (point-min)) | |
790 | (end-of-line) | |
791 | (incf gnus-tmp-indent)) | |
792 | ;; Recurse downwards in all children of this article. | |
793 | (while thread | |
794 | (gnus-generate-vertical-tree | |
795 | (pop thread) (if do (1+ level) level) | |
796 | (or dummyp dummy) dummy))))) | |
797 | ||
798 | ;;; Interface functions. | |
799 | ||
800 | (defun gnus-possibly-generate-tree (article &optional force) | |
801 | "Generate the thread tree for ARTICLE if it isn't displayed already." | |
802 | (when (save-excursion | |
803 | (set-buffer gnus-summary-buffer) | |
804 | (and gnus-use-trees | |
805 | gnus-show-threads | |
806 | (vectorp (gnus-summary-article-header article)))) | |
807 | (save-excursion | |
808 | (let ((top (save-excursion | |
809 | (set-buffer gnus-summary-buffer) | |
810 | (gnus-cut-thread | |
811 | (gnus-remove-thread | |
812 | (mail-header-id | |
813 | (gnus-summary-article-header article)) | |
814 | t)))) | |
815 | (gnus-tmp-limit gnus-newsgroup-limit) | |
816 | (gnus-tmp-sparse gnus-newsgroup-sparse)) | |
817 | (when (or force | |
818 | (not (eq top gnus-tree-displayed-thread))) | |
819 | (gnus-generate-tree top) | |
820 | (setq gnus-tree-displayed-thread top)))))) | |
821 | ||
822 | (defun gnus-tree-open (group) | |
823 | (gnus-get-tree-buffer)) | |
824 | ||
825 | (defun gnus-tree-close (group) | |
6748645f | 826 | (gnus-kill-buffer gnus-tree-buffer)) |
eec82323 LMI |
827 | |
828 | (defun gnus-highlight-selected-tree (article) | |
829 | "Highlight the selected article in the tree." | |
830 | (let ((buf (current-buffer)) | |
831 | region) | |
832 | (set-buffer gnus-tree-buffer) | |
833 | (when (setq region (gnus-tree-article-region article)) | |
834 | (when (or (not gnus-selected-tree-overlay) | |
835 | (gnus-extent-detached-p gnus-selected-tree-overlay)) | |
836 | ;; Create a new overlay. | |
837 | (gnus-overlay-put | |
838 | (setq gnus-selected-tree-overlay (gnus-make-overlay 1 2)) | |
839 | 'face gnus-selected-tree-face)) | |
840 | ;; Move the overlay to the article. | |
841 | (gnus-move-overlay | |
842 | gnus-selected-tree-overlay (goto-char (car region)) (cdr region)) | |
843 | (gnus-tree-minimize) | |
844 | (gnus-tree-recenter) | |
845 | (let ((selected (selected-window))) | |
846 | (when (get-buffer-window (set-buffer gnus-tree-buffer) t) | |
847 | (select-window (get-buffer-window (set-buffer gnus-tree-buffer) t)) | |
848 | (gnus-horizontal-recenter) | |
849 | (select-window selected)))) | |
850 | ;; If we remove this save-excursion, it updates the wrong mode lines?!? | |
851 | (save-excursion | |
852 | (set-buffer gnus-tree-buffer) | |
853 | (gnus-set-mode-line 'tree)) | |
854 | (set-buffer buf))) | |
855 | ||
856 | (defun gnus-tree-highlight-article (article face) | |
857 | (save-excursion | |
858 | (set-buffer (gnus-get-tree-buffer)) | |
859 | (let (region) | |
860 | (when (setq region (gnus-tree-article-region article)) | |
861 | (gnus-put-text-property (car region) (cdr region) 'face face) | |
862 | (set-window-point | |
863 | (get-buffer-window (current-buffer) t) (cdr region)))))) | |
864 | ||
865 | ;;; | |
866 | ;;; gnus-carpal | |
867 | ;;; | |
868 | ||
869 | (defvar gnus-carpal-group-buffer-buttons | |
870 | '(("next" . gnus-group-next-unread-group) | |
871 | ("prev" . gnus-group-prev-unread-group) | |
872 | ("read" . gnus-group-read-group) | |
873 | ("select" . gnus-group-select-group) | |
874 | ("catch-up" . gnus-group-catchup-current) | |
875 | ("new-news" . gnus-group-get-new-news-this-group) | |
876 | ("toggle-sub" . gnus-group-unsubscribe-current-group) | |
877 | ("subscribe" . gnus-group-unsubscribe-group) | |
878 | ("kill" . gnus-group-kill-group) | |
879 | ("yank" . gnus-group-yank-group) | |
880 | ("describe" . gnus-group-describe-group) | |
881 | "list" | |
882 | ("subscribed" . gnus-group-list-groups) | |
883 | ("all" . gnus-group-list-all-groups) | |
884 | ("killed" . gnus-group-list-killed) | |
885 | ("zombies" . gnus-group-list-zombies) | |
886 | ("matching" . gnus-group-list-matching) | |
887 | ("post" . gnus-group-post-news) | |
888 | ("mail" . gnus-group-mail) | |
889 | ("rescan" . gnus-group-get-new-news) | |
890 | ("browse-foreign" . gnus-group-browse-foreign) | |
891 | ("exit" . gnus-group-exit))) | |
892 | ||
893 | (defvar gnus-carpal-summary-buffer-buttons | |
894 | '("mark" | |
895 | ("read" . gnus-summary-mark-as-read-forward) | |
896 | ("tick" . gnus-summary-tick-article-forward) | |
897 | ("clear" . gnus-summary-clear-mark-forward) | |
898 | ("expirable" . gnus-summary-mark-as-expirable) | |
899 | "move" | |
900 | ("scroll" . gnus-summary-next-page) | |
901 | ("next-unread" . gnus-summary-next-unread-article) | |
902 | ("prev-unread" . gnus-summary-prev-unread-article) | |
903 | ("first" . gnus-summary-first-unread-article) | |
904 | ("best" . gnus-summary-best-unread-article) | |
905 | "article" | |
906 | ("headers" . gnus-summary-toggle-header) | |
907 | ("uudecode" . gnus-uu-decode-uu) | |
908 | ("enter-digest" . gnus-summary-enter-digest-group) | |
909 | ("fetch-parent" . gnus-summary-refer-parent-article) | |
910 | "mail" | |
911 | ("move" . gnus-summary-move-article) | |
912 | ("copy" . gnus-summary-copy-article) | |
913 | ("respool" . gnus-summary-respool-article) | |
914 | "threads" | |
915 | ("lower" . gnus-summary-lower-thread) | |
916 | ("kill" . gnus-summary-kill-thread) | |
917 | "post" | |
918 | ("post" . gnus-summary-post-news) | |
919 | ("mail" . gnus-summary-mail) | |
920 | ("followup" . gnus-summary-followup-with-original) | |
921 | ("reply" . gnus-summary-reply-with-original) | |
922 | ("cancel" . gnus-summary-cancel-article) | |
923 | "misc" | |
924 | ("exit" . gnus-summary-exit) | |
925 | ("fed-up" . gnus-summary-catchup-and-goto-next-group))) | |
926 | ||
927 | (defvar gnus-carpal-server-buffer-buttons | |
928 | '(("add" . gnus-server-add-server) | |
929 | ("browse" . gnus-server-browse-server) | |
930 | ("list" . gnus-server-list-servers) | |
931 | ("kill" . gnus-server-kill-server) | |
932 | ("yank" . gnus-server-yank-server) | |
933 | ("copy" . gnus-server-copy-server) | |
934 | ("exit" . gnus-server-exit))) | |
935 | ||
936 | (defvar gnus-carpal-browse-buffer-buttons | |
937 | '(("subscribe" . gnus-browse-unsubscribe-current-group) | |
938 | ("exit" . gnus-browse-exit))) | |
939 | ||
940 | (defvar gnus-carpal-group-buffer "*Carpal Group*") | |
941 | (defvar gnus-carpal-summary-buffer "*Carpal Summary*") | |
942 | (defvar gnus-carpal-server-buffer "*Carpal Server*") | |
943 | (defvar gnus-carpal-browse-buffer "*Carpal Browse*") | |
944 | ||
945 | (defvar gnus-carpal-attached-buffer nil) | |
946 | ||
947 | (defvar gnus-carpal-mode-hook nil | |
948 | "*Hook run in carpal mode buffers.") | |
949 | ||
950 | (defvar gnus-carpal-button-face 'bold | |
951 | "*Face used on carpal buttons.") | |
952 | ||
953 | (defvar gnus-carpal-header-face 'bold-italic | |
954 | "*Face used on carpal buffer headers.") | |
955 | ||
956 | (defvar gnus-carpal-mode-map nil) | |
957 | (put 'gnus-carpal-mode 'mode-class 'special) | |
958 | ||
959 | (if gnus-carpal-mode-map | |
960 | nil | |
961 | (setq gnus-carpal-mode-map (make-keymap)) | |
962 | (suppress-keymap gnus-carpal-mode-map) | |
963 | (define-key gnus-carpal-mode-map " " 'gnus-carpal-select) | |
964 | (define-key gnus-carpal-mode-map "\r" 'gnus-carpal-select) | |
965 | (define-key gnus-carpal-mode-map gnus-mouse-2 'gnus-carpal-mouse-select)) | |
966 | ||
967 | (defun gnus-carpal-mode () | |
968 | "Major mode for clicking buttons. | |
969 | ||
970 | All normal editing commands are switched off. | |
971 | \\<gnus-carpal-mode-map> | |
972 | The following commands are available: | |
973 | ||
974 | \\{gnus-carpal-mode-map}" | |
975 | (interactive) | |
976 | (kill-all-local-variables) | |
a8151ef7 | 977 | (setq mode-line-modified (cdr gnus-mode-line-modified)) |
eec82323 LMI |
978 | (setq major-mode 'gnus-carpal-mode) |
979 | (setq mode-name "Gnus Carpal") | |
980 | (setq mode-line-process nil) | |
981 | (use-local-map gnus-carpal-mode-map) | |
16409b0b | 982 | (buffer-disable-undo) |
eec82323 LMI |
983 | (setq buffer-read-only t) |
984 | (make-local-variable 'gnus-carpal-attached-buffer) | |
6748645f | 985 | (gnus-run-hooks 'gnus-carpal-mode-hook)) |
eec82323 LMI |
986 | |
987 | (defun gnus-carpal-setup-buffer (type) | |
988 | (let ((buffer (symbol-value (intern (format "gnus-carpal-%s-buffer" type))))) | |
989 | (if (get-buffer buffer) | |
990 | () | |
991 | (save-excursion | |
6748645f | 992 | (set-buffer (gnus-get-buffer-create buffer)) |
eec82323 LMI |
993 | (gnus-carpal-mode) |
994 | (setq gnus-carpal-attached-buffer | |
995 | (intern (format "gnus-%s-buffer" type))) | |
eec82323 LMI |
996 | (let ((buttons (symbol-value |
997 | (intern (format "gnus-carpal-%s-buffer-buttons" | |
998 | type)))) | |
999 | (buffer-read-only nil) | |
1000 | button) | |
1001 | (while buttons | |
1002 | (setq button (car buttons) | |
1003 | buttons (cdr buttons)) | |
1004 | (if (stringp button) | |
1005 | (gnus-set-text-properties | |
1006 | (point) | |
1007 | (prog2 (insert button) (point) (insert " ")) | |
1008 | (list 'face gnus-carpal-header-face)) | |
1009 | (gnus-set-text-properties | |
1010 | (point) | |
1011 | (prog2 (insert (car button)) (point) (insert " ")) | |
1012 | (list 'gnus-callback (cdr button) | |
1013 | 'face gnus-carpal-button-face | |
1014 | gnus-mouse-face-prop 'highlight)))) | |
1015 | (let ((fill-column (- (window-width) 2))) | |
1016 | (fill-region (point-min) (point-max))) | |
1017 | (set-window-point (get-buffer-window (current-buffer)) | |
1018 | (point-min))))))) | |
1019 | ||
1020 | (defun gnus-carpal-select () | |
1021 | "Select the button under point." | |
1022 | (interactive) | |
1023 | (let ((func (get-text-property (point) 'gnus-callback))) | |
1024 | (if (null func) | |
1025 | () | |
1026 | (pop-to-buffer (symbol-value gnus-carpal-attached-buffer)) | |
1027 | (call-interactively func)))) | |
1028 | ||
1029 | (defun gnus-carpal-mouse-select (event) | |
1030 | "Select the button under the mouse pointer." | |
1031 | (interactive "e") | |
1032 | (mouse-set-point event) | |
1033 | (gnus-carpal-select)) | |
1034 | ||
1035 | ;;; Allow redefinition of functions. | |
1036 | (gnus-ems-redefine) | |
1037 | ||
1038 | (provide 'gnus-salt) | |
1039 | ||
ab5796a9 | 1040 | ;;; arch-tag: 35449164-77b3-4398-bcbd-a2e3e998f810 |
eec82323 | 1041 | ;;; gnus-salt.el ends here |