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55535639 | 1 | ;;; appt.el --- appointment notification functions |
c0274f38 | 2 | |
a20b3848 | 3 | ;; Copyright (C) 1989, 1990, 1994, 1998, 2001, 2002, 2003, 2004, 2005, |
f0fa15c5 | 4 | ;; 2006, 2007 Free Software Foundation, Inc. |
3a801d0c | 5 | |
e5167999 | 6 | ;; Author: Neil Mager <neilm@juliet.ll.mit.edu> |
aff88519 | 7 | ;; Maintainer: Glenn Morris <rgm@gnu.org> |
e5167999 ER |
8 | ;; Keywords: calendar |
9 | ||
902a0e3c JB |
10 | ;; This file is part of GNU Emacs. |
11 | ||
12 | ;; GNU Emacs is free software; you can redistribute it and/or modify | |
13 | ;; it under the terms of the GNU General Public License as published by | |
e5167999 | 14 | ;; the Free Software Foundation; either version 2, or (at your option) |
902a0e3c JB |
15 | ;; any later version. |
16 | ||
17 | ;; GNU Emacs is distributed in the hope that it will be useful, | |
18 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
19 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
20 | ;; GNU General Public License for more details. | |
21 | ||
22 | ;; You should have received a copy of the GNU General Public License | |
b578f267 | 23 | ;; along with GNU Emacs; see the file COPYING. If not, write to the |
3a35cf56 LK |
24 | ;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
25 | ;; Boston, MA 02110-1301, USA. | |
902a0e3c | 26 | |
e5167999 ER |
27 | ;;; Commentary: |
28 | ||
902a0e3c JB |
29 | ;; |
30 | ;; appt.el - visible and/or audible notification of | |
8d638c1b | 31 | ;; appointments from diary file. |
902a0e3c | 32 | ;; |
902a0e3c | 33 | ;;; |
d073fa5b | 34 | ;;; Thanks to Edward M. Reingold for much help and many suggestions, |
902a0e3c JB |
35 | ;;; And to many others for bug fixes and suggestions. |
36 | ;;; | |
37 | ;;; | |
a1506d29 | 38 | ;;; This functions in this file will alert the user of a |
8d638c1b GM |
39 | ;;; pending appointment based on his/her diary file. This package |
40 | ;;; is documented in the Emacs manual. | |
902a0e3c | 41 | ;;; |
8d638c1b GM |
42 | ;;; To activate this package, simply use (appt-activate 1). |
43 | ;;; A `diary-file' with appointments of the format described in the | |
44 | ;;; documentation of the function `appt-check' is required. | |
45 | ;;; Relevant customizable variables are also listed in the | |
46 | ;;; documentation of that function. | |
a19de628 | 47 | ;;; |
8d638c1b GM |
48 | ;;; Today's appointment list is initialized from the diary when this |
49 | ;;; package is activated. Additionally, the appointments list is | |
50 | ;;; recreated automatically at 12:01am for those who do not logout | |
51 | ;;; every day or are programming late. It is also updated when the | |
52 | ;;; `diary-file' is saved. Calling `appt-check' with an argument forces | |
53 | ;;; a re-initialization at any time. | |
902a0e3c | 54 | ;;; |
8d638c1b GM |
55 | ;;; In order to add or delete items from today's list, without |
56 | ;;; changing the diary file, use `appt-add' and `appt-delete'. | |
902a0e3c | 57 | ;;; |
8d638c1b | 58 | |
d073fa5b | 59 | ;;; Brief internal description - Skip this if you are not interested! |
902a0e3c | 60 | ;;; |
8d638c1b GM |
61 | ;;; The function `appt-make-list' creates the appointments list which |
62 | ;;; `appt-check' reads. | |
902a0e3c | 63 | ;;; |
5b586155 | 64 | ;;; You can change the way the appointment window is created/deleted by |
8d638c1b | 65 | ;;; setting the variables |
5b586155 RS |
66 | ;;; |
67 | ;;; appt-disp-window-function | |
68 | ;;; and | |
69 | ;;; appt-delete-window-function | |
70 | ;;; | |
8d638c1b | 71 | ;;; For instance, these variables could be set to functions that display |
5b586155 | 72 | ;;; appointments in pop-up frames, which are lowered or iconified after |
8d638c1b | 73 | ;;; `appt-display-interval' minutes. |
5b586155 | 74 | ;;; |
e5167999 ER |
75 | |
76 | ;;; Code: | |
77 | ||
6afadb57 RS |
78 | ;; Make sure calendar is loaded when we compile this. |
79 | (require 'calendar) | |
80 | ||
3083298a | 81 | (defvar diary-selective-display) |
902a0e3c | 82 | |
30e8032d GM |
83 | ;;;###autoload |
84 | (defcustom appt-issue-message t | |
85 | "*Non-nil means check for appointments in the diary buffer. | |
86 | To be detected, the diary entry must have the format described in the | |
87 | documentation of the function `appt-check'." | |
88 | :type 'boolean | |
89 | :group 'appt) | |
90 | ||
91 | (make-obsolete-variable 'appt-issue-message | |
92 | "use the function `appt-activate', and the \ | |
bf247b6e | 93 | variable `appt-display-format' instead." "22.1") |
30e8032d | 94 | |
7e1dae73 | 95 | ;;;###autoload |
8db540c5 RS |
96 | (defcustom appt-message-warning-time 12 |
97 | "*Time in minutes before an appointment that the warning begins." | |
98 | :type 'integer | |
99 | :group 'appt) | |
902a0e3c | 100 | |
7e1dae73 | 101 | ;;;###autoload |
8db540c5 RS |
102 | (defcustom appt-audible t |
103 | "*Non-nil means beep to indicate appointment." | |
104 | :type 'boolean | |
105 | :group 'appt) | |
902a0e3c | 106 | |
7e1dae73 | 107 | ;;;###autoload |
8db540c5 | 108 | (defcustom appt-visible t |
8d638c1b GM |
109 | "*Non-nil means display appointment message in echo area. |
110 | This variable is only relevant if `appt-msg-window' is nil." | |
8db540c5 RS |
111 | :type 'boolean |
112 | :group 'appt) | |
902a0e3c | 113 | |
bf247b6e | 114 | (make-obsolete-variable 'appt-visible 'appt-display-format "22.1") |
8d638c1b | 115 | |
7e1dae73 | 116 | ;;;###autoload |
8d638c1b GM |
117 | (defcustom appt-msg-window t |
118 | "*Non-nil means display appointment message in another window. | |
119 | If non-nil, this variable overrides `appt-visible'." | |
8db540c5 RS |
120 | :type 'boolean |
121 | :group 'appt) | |
902a0e3c | 122 | |
bf247b6e | 123 | (make-obsolete-variable 'appt-msg-window 'appt-display-format "22.1") |
8d638c1b GM |
124 | |
125 | ;; TODO - add popup. | |
a19de628 | 126 | (defcustom appt-display-format 'ignore |
8d638c1b GM |
127 | "How appointment reminders should be displayed. |
128 | The options are: | |
129 | window - use a separate window | |
130 | echo - use the echo area | |
131 | nil - no visible reminder. | |
a19de628 GM |
132 | See also `appt-audible' and `appt-display-mode-line'. |
133 | ||
134 | The default value is 'ignore, which means to fall back on the value | |
135 | of the (obsolete) variables `appt-msg-window' and `appt-visible'." | |
8d638c1b GM |
136 | :type '(choice |
137 | (const :tag "Separate window" window) | |
138 | (const :tag "Echo-area" echo) | |
3c6b81d8 GM |
139 | (const :tag "No visible display" nil) |
140 | (const :tag "Backwards compatibility setting - choose another value" | |
141 | ignore)) | |
8d638c1b | 142 | :group 'appt |
bf247b6e | 143 | :version "22.1") |
8d638c1b | 144 | |
7e1dae73 | 145 | ;;;###autoload |
8d638c1b GM |
146 | (defcustom appt-display-mode-line t |
147 | "*Non-nil means display minutes to appointment and time on the mode line. | |
148 | This is in addition to any other display of appointment messages." | |
8db540c5 RS |
149 | :type 'boolean |
150 | :group 'appt) | |
902a0e3c | 151 | |
7e1dae73 | 152 | ;;;###autoload |
8db540c5 | 153 | (defcustom appt-display-duration 10 |
8d638c1b GM |
154 | "*The number of seconds an appointment message is displayed. |
155 | Only relevant if reminders are to be displayed in their own window." | |
8db540c5 RS |
156 | :type 'integer |
157 | :group 'appt) | |
902a0e3c | 158 | |
7e1dae73 | 159 | ;;;###autoload |
8db540c5 | 160 | (defcustom appt-display-diary t |
8d638c1b | 161 | "*Non-nil displays the diary when the appointment list is first initialized. |
8db540c5 RS |
162 | This will occur at midnight when the appointment list is updated." |
163 | :type 'boolean | |
164 | :group 'appt) | |
902a0e3c | 165 | |
8db540c5 RS |
166 | (defcustom appt-display-interval 3 |
167 | "*Number of minutes to wait between checking the appointment list." | |
168 | :type 'integer | |
169 | :group 'appt) | |
a1506d29 | 170 | |
8d638c1b GM |
171 | (defcustom appt-disp-window-function 'appt-disp-window |
172 | "Function called to display appointment window. | |
173 | Only relevant if reminders are being displayed in a window." | |
174 | :type '(choice (const appt-disp-window) | |
175 | function) | |
176 | :group 'appt) | |
177 | ||
178 | (defcustom appt-delete-window-function 'appt-delete-window | |
179 | "Function called to remove appointment window and buffer. | |
180 | Only relevant if reminders are being displayed in a window." | |
181 | :type '(choice (const appt-delete-window) | |
182 | function) | |
183 | :group 'appt) | |
184 | ||
185 | ||
186 | ;;; Internal variables below this point. | |
187 | ||
9080baba | 188 | (defconst appt-buffer-name " *appt-buf*" |
5b586155 | 189 | "Name of the appointments buffer.") |
a1506d29 | 190 | |
8d638c1b GM |
191 | (defvar appt-time-msg-list nil |
192 | "The list of appointments for today. | |
193 | Use `appt-add' and `appt-delete' to add and delete appointments. | |
194 | The original list is generated from today's `diary-entries-list', and | |
195 | can be regenerated using the function `appt-check'. | |
5fac723a | 196 | Each element of the generated list has the form (MINUTES STRING [FLAG]); where |
8d638c1b | 197 | MINUTES is the time in minutes of the appointment after midnight, and |
5fac723a RS |
198 | STRING is the description of the appointment. |
199 | FLAG, if non-nil, says that the element was made with `appt-add' | |
200 | so calling `appt-make-list' again should preserve it.") | |
a1506d29 | 201 | |
0cb7f2c0 | 202 | (defconst appt-max-time (1- (* 24 60)) |
8d638c1b | 203 | "11:59pm in minutes - number of minutes in a day minus 1.") |
b570e652 | 204 | |
efa434d9 | 205 | (defvar appt-mode-string nil |
f3e7c0dc | 206 | "String being displayed in the mode line saying you have an appointment. |
8d638c1b GM |
207 | The actual string includes the amount of time till the appointment. |
208 | Only used if `appt-display-mode-line' is non-nil.") | |
f3e7c0dc KH |
209 | |
210 | (defvar appt-prev-comp-time nil | |
8d638c1b GM |
211 | "Time of day (mins since midnight) at which we last checked appointments. |
212 | A nil value forces the diary file to be (re-)checked for appointments.") | |
f3e7c0dc KH |
213 | |
214 | (defvar appt-now-displayed nil | |
215 | "Non-nil when we have started notifying about a appointment that is near.") | |
216 | ||
8d638c1b GM |
217 | (defvar appt-display-count nil |
218 | "Internal variable used to count number of consecutive reminders.") | |
efa434d9 | 219 | |
8d638c1b GM |
220 | (defvar appt-timer nil |
221 | "Timer used for diary appointment notifications (`appt-check'). | |
222 | If this is non-nil, appointment checking is active.") | |
223 | ||
224 | ||
225 | ;;; Functions. | |
226 | ||
227 | (defun appt-display-message (string mins) | |
228 | "Display a reminder about an appointment. | |
229 | The string STRING describes the appointment, due in integer MINS minutes. | |
230 | The format of the visible reminder is controlled by `appt-display-format'. | |
231 | The variable `appt-audible' controls the audible reminder." | |
a19de628 GM |
232 | ;; let binding for backwards compatability. Remove when obsolete |
233 | ;; vars appt-msg-window and appt-visible are dropped. | |
234 | (let ((appt-display-format | |
235 | (if (eq appt-display-format 'ignore) | |
236 | (cond (appt-msg-window 'window) | |
237 | (appt-visible 'echo)) | |
238 | appt-display-format))) | |
239 | (cond ((eq appt-display-format 'window) | |
240 | (funcall appt-disp-window-function | |
241 | (number-to-string mins) | |
dbfca9c4 GM |
242 | ;; TODO - use calendar-month-abbrev-array rather |
243 | ;; than %b? | |
a19de628 GM |
244 | (format-time-string "%a %b %e " (current-time)) |
245 | string) | |
246 | (run-at-time (format "%d sec" appt-display-duration) | |
247 | nil | |
248 | appt-delete-window-function)) | |
249 | ((eq appt-display-format 'echo) | |
250 | (message "%s" string))) | |
251 | (if appt-audible (beep 1)))) | |
8d638c1b GM |
252 | |
253 | ||
254 | (defun appt-check (&optional force) | |
255 | "Check for an appointment and update any reminder display. | |
256 | If optional argument FORCE is non-nil, reparse the diary file for | |
257 | appointments. Otherwise the diary file is only parsed once per day, | |
258 | and when saved. | |
902a0e3c | 259 | |
8d638c1b GM |
260 | Note: the time must be the first thing in the line in the diary |
261 | for a warning to be issued. The format of the time can be either | |
262 | 24 hour or am/pm. For example: | |
902a0e3c | 263 | |
8d638c1b GM |
264 | 02/23/89 |
265 | 18:00 Dinner | |
a1506d29 | 266 | |
902a0e3c JB |
267 | Thursday |
268 | 11:45am Lunch meeting. | |
269 | ||
f3e7c0dc KH |
270 | Appointments are checked every `appt-display-interval' minutes. |
271 | The following variables control appointment notification: | |
902a0e3c | 272 | |
8d638c1b GM |
273 | `appt-display-format' |
274 | Controls the format in which reminders are displayed. | |
902a0e3c | 275 | |
efa434d9 | 276 | `appt-audible' |
8d638c1b | 277 | Variable used to determine if reminder is audible. |
b570e652 | 278 | Default is t. |
902a0e3c | 279 | |
8d638c1b GM |
280 | `appt-message-warning-time' |
281 | Variable used to determine when appointment message | |
282 | should first be displayed. | |
283 | ||
284 | `appt-display-mode-line' | |
285 | If non-nil, a generic message giving the time remaining | |
286 | is shown in the mode-line when an appointment is due. | |
287 | ||
288 | `appt-display-interval' | |
289 | Interval in minutes at which to check for pending appointments. | |
902a0e3c | 290 | |
8d638c1b GM |
291 | `appt-display-diary' |
292 | Display the diary buffer when the appointment list is | |
293 | initialized for the first time in a day. | |
294 | ||
295 | The following variables are only relevant if reminders are being | |
296 | displayed in a window: | |
902a0e3c | 297 | |
efa434d9 | 298 | `appt-display-duration' |
8d638c1b | 299 | The number of seconds an appointment message is displayed. |
b570e652 | 300 | |
f3e7c0dc | 301 | `appt-disp-window-function' |
8d638c1b | 302 | Function called to display appointment window. |
a1506d29 | 303 | |
f3e7c0dc | 304 | `appt-delete-window-function' |
8d638c1b | 305 | Function called to remove appointment window and buffer." |
902a0e3c | 306 | |
f3e7c0dc | 307 | (let* ((min-to-app -1) |
f3e7c0dc KH |
308 | (prev-appt-mode-string appt-mode-string) |
309 | (prev-appt-display-count (or appt-display-count 0)) | |
310 | ;; Non-nil means do a full check for pending appointments | |
311 | ;; and display in whatever ways the user has selected. | |
312 | ;; When no appointment is being displayed, | |
313 | ;; we always do a full check. | |
314 | (full-check | |
315 | (or (not appt-now-displayed) | |
316 | ;; This is true every appt-display-interval minutes. | |
8d638c1b | 317 | (zerop (mod prev-appt-display-count appt-display-interval)))) |
f3e7c0dc KH |
318 | ;; Non-nil means only update the interval displayed in the mode line. |
319 | (mode-line-only | |
320 | (and (not full-check) appt-now-displayed))) | |
321 | ||
322 | (when (or full-check mode-line-only) | |
323 | (save-excursion | |
324 | ||
325 | ;; Get the current time and convert it to minutes | |
326 | ;; from midnight. ie. 12:01am = 1, midnight = 0. | |
902a0e3c | 327 | |
f3e7c0dc KH |
328 | (let* ((now (decode-time)) |
329 | (cur-hour (nth 2 now)) | |
330 | (cur-min (nth 1 now)) | |
331 | (cur-comp-time (+ (* cur-hour 60) cur-min))) | |
332 | ||
a1506d29 | 333 | ;; At the first check in any given day, update our |
f3e7c0dc KH |
334 | ;; appointments to today's list. |
335 | ||
359bff67 | 336 | (if (or force ; eg initialize, diary save |
8d638c1b GM |
337 | (null appt-prev-comp-time) ; first check |
338 | (< cur-comp-time appt-prev-comp-time)) ; new day | |
f3e7c0dc | 339 | (condition-case nil |
359bff67 GM |
340 | (if appt-display-diary |
341 | (let ((diary-hook | |
342 | (if (assoc 'appt-make-list diary-hook) | |
343 | diary-hook | |
344 | (cons 'appt-make-list diary-hook)))) | |
345 | (diary)) | |
a120694f SM |
346 | (let* ((diary-display-hook 'appt-make-list) |
347 | (d-buff (find-buffer-visiting | |
348 | (substitute-in-file-name diary-file))) | |
349 | (selective | |
350 | (if d-buff ; Diary buffer exists. | |
351 | (with-current-buffer d-buff | |
352 | diary-selective-display)))) | |
359bff67 GM |
353 | (diary) |
354 | ;; If the diary buffer existed before this command, | |
355 | ;; restore its display state. Otherwise, kill it. | |
356 | (if d-buff | |
357 | ;; Displays the diary buffer. | |
59b79385 | 358 | (or selective (diary-show-all-entries)) |
359bff67 GM |
359 | (and |
360 | (setq d-buff (find-buffer-visiting | |
361 | (substitute-in-file-name diary-file))) | |
362 | (kill-buffer d-buff))))) | |
f3e7c0dc | 363 | (error nil))) |
f3e7c0dc | 364 | |
8d638c1b GM |
365 | (setq appt-prev-comp-time cur-comp-time |
366 | appt-mode-string nil | |
367 | appt-display-count nil) | |
f3e7c0dc KH |
368 | |
369 | ;; If there are entries in the list, and the | |
370 | ;; user wants a message issued, | |
371 | ;; get the first time off of the list | |
372 | ;; and calculate the number of minutes until the appointment. | |
373 | ||
9fa0334c | 374 | (if (and appt-issue-message appt-time-msg-list) |
f3e7c0dc KH |
375 | (let ((appt-comp-time (car (car (car appt-time-msg-list))))) |
376 | (setq min-to-app (- appt-comp-time cur-comp-time)) | |
377 | ||
a1506d29 | 378 | (while (and appt-time-msg-list |
f3e7c0dc | 379 | (< appt-comp-time cur-comp-time)) |
a1506d29 | 380 | (setq appt-time-msg-list (cdr appt-time-msg-list)) |
f3e7c0dc | 381 | (if appt-time-msg-list |
a1506d29 | 382 | (setq appt-comp-time |
f3e7c0dc KH |
383 | (car (car (car appt-time-msg-list)))))) |
384 | ||
385 | ;; If we have an appointment between midnight and | |
386 | ;; 'appt-message-warning-time' minutes after midnight, | |
387 | ;; we must begin to issue a message before midnight. | |
388 | ;; Midnight is considered 0 minutes and 11:59pm is | |
389 | ;; 1439 minutes. Therefore we must recalculate the minutes | |
a1506d29 JB |
390 | ;; to appointment variable. It is equal to the number of |
391 | ;; minutes before midnight plus the number of | |
f3e7c0dc KH |
392 | ;; minutes after midnight our appointment is. |
393 | ||
394 | (if (and (< appt-comp-time appt-message-warning-time) | |
395 | (> (+ cur-comp-time appt-message-warning-time) | |
396 | appt-max-time)) | |
8a76ffd1 GM |
397 | (setq min-to-app (+ (- (1+ appt-max-time) cur-comp-time) |
398 | appt-comp-time))) | |
f3e7c0dc | 399 | |
a1506d29 | 400 | ;; issue warning if the appointment time is |
f3e7c0dc KH |
401 | ;; within appt-message-warning time |
402 | ||
403 | (when (and (<= min-to-app appt-message-warning-time) | |
404 | (>= min-to-app 0)) | |
8d638c1b GM |
405 | (setq appt-now-displayed t |
406 | appt-display-count (1+ prev-appt-display-count)) | |
f3e7c0dc | 407 | (unless mode-line-only |
8d638c1b GM |
408 | (appt-display-message (cadr (car appt-time-msg-list)) |
409 | min-to-app)) | |
f3e7c0dc KH |
410 | (when appt-display-mode-line |
411 | (setq appt-mode-string | |
8d638c1b | 412 | (format " App't in %s min." min-to-app))) |
f3e7c0dc KH |
413 | |
414 | ;; When an appointment is reached, | |
415 | ;; delete it from the list. | |
416 | ;; Reset the count to 0 in case we display another | |
417 | ;; appointment on the next cycle. | |
8d638c1b GM |
418 | (if (zerop min-to-app) |
419 | (setq appt-time-msg-list (cdr appt-time-msg-list) | |
f3e7c0dc KH |
420 | appt-display-count nil))))) |
421 | ||
422 | ;; If we have changed the mode line string, | |
423 | ;; redisplay all mode lines. | |
424 | (and appt-display-mode-line | |
425 | (not (equal appt-mode-string | |
426 | prev-appt-mode-string)) | |
427 | (progn | |
428 | (force-mode-line-update t) | |
429 | ;; If the string now has a notification, | |
430 | ;; redisplay right now. | |
431 | (if appt-mode-string | |
432 | (sit-for 0))))))))) | |
902a0e3c JB |
433 | |
434 | ||
902a0e3c | 435 | (defun appt-disp-window (min-to-app new-time appt-msg) |
8d638c1b GM |
436 | "Display appointment message APPT-MSG in a separate buffer. |
437 | The appointment is due in MIN-TO-APP (a string) minutes. | |
438 | NEW-TIME is a string giving the date." | |
902a0e3c | 439 | (require 'electric) |
5b586155 RS |
440 | |
441 | ;; Make sure we're not in the minibuffer | |
442 | ;; before splitting the window. | |
443 | ||
444 | (if (equal (selected-window) (minibuffer-window)) | |
a1506d29 | 445 | (if (other-window 1) |
5b586155 | 446 | (select-window (other-window 1)) |
fbebec27 | 447 | (if (display-multi-frame-p) |
5b586155 | 448 | (select-frame (other-frame 1))))) |
a1506d29 | 449 | |
8d638c1b GM |
450 | (let ((this-window (selected-window)) |
451 | (appt-disp-buf (set-buffer (get-buffer-create appt-buffer-name)))) | |
5b586155 | 452 | |
d5b22d88 RS |
453 | (if (cdr (assq 'unsplittable (frame-parameters))) |
454 | ;; In an unsplittable frame, use something somewhere else. | |
455 | (display-buffer appt-disp-buf) | |
058961dd RS |
456 | (unless (or (special-display-p (buffer-name appt-disp-buf)) |
457 | (same-window-p (buffer-name appt-disp-buf))) | |
458 | ;; By default, split the bottom window and use the lower part. | |
459 | (appt-select-lowest-window) | |
3b316424 GM |
460 | (select-window (split-window))) |
461 | (switch-to-buffer appt-disp-buf)) | |
462 | (calendar-set-mode-line | |
463 | (format " Appointment in %s minutes. %s " min-to-app new-time)) | |
efa434d9 | 464 | (erase-buffer) |
0e13751e | 465 | (insert appt-msg) |
d5b22d88 | 466 | (shrink-window-if-larger-than-buffer (get-buffer-window appt-disp-buf t)) |
5b586155 | 467 | (set-buffer-modified-p nil) |
725ec4bc | 468 | (raise-frame (selected-frame)) |
8d638c1b | 469 | (select-window this-window))) |
a1506d29 | 470 | |
5b586155 RS |
471 | (defun appt-delete-window () |
472 | "Function called to undisplay appointment messages. | |
473 | Usually just deletes the appointment buffer." | |
95cdbff5 RS |
474 | (let ((window (get-buffer-window appt-buffer-name t))) |
475 | (and window | |
d073fa5b | 476 | (or (eq window (frame-root-window (window-frame window))) |
95cdbff5 | 477 | (delete-window window)))) |
5b586155 RS |
478 | (kill-buffer appt-buffer-name) |
479 | (if appt-audible | |
480 | (beep 1))) | |
902a0e3c | 481 | |
902a0e3c | 482 | (defun appt-select-lowest-window () |
d073fa5b | 483 | "Select the lowest window on the frame." |
7c0d9b89 GM |
484 | (let ((lowest-window (selected-window)) |
485 | (bottom-edge (nth 3 (window-edges)))) | |
486 | (walk-windows (lambda (w) | |
487 | (let ((next-bottom-edge (nth 3 (window-edges w)))) | |
488 | (when (< bottom-edge next-bottom-edge) | |
489 | (setq bottom-edge next-bottom-edge | |
490 | lowest-window w))))) | |
491 | (select-window lowest-window))) | |
902a0e3c | 492 | |
0cb7f2c0 SM |
493 | (defconst appt-time-regexp |
494 | "[0-9]?[0-9]\\(h\\([0-9][0-9]\\)?\\|[:.][0-9][0-9]\\)\\(am\\|pm\\)?") | |
495 | ||
f3e7c0dc | 496 | ;;;###autoload |
902a0e3c | 497 | (defun appt-add (new-appt-time new-appt-msg) |
9080baba | 498 | "Add an appointment for today at NEW-APPT-TIME with message NEW-APPT-MSG. |
902a0e3c | 499 | The time should be in either 24 hour format or am/pm format." |
902a0e3c | 500 | (interactive "sTime (hh:mm[am/pm]): \nsMessage: ") |
0cb7f2c0 | 501 | (unless (string-match appt-time-regexp new-appt-time) |
902a0e3c | 502 | (error "Unacceptable time-string")) |
74139994 RW |
503 | (let ((time-msg (list (list (appt-convert-time new-appt-time)) |
504 | (concat new-appt-time " " new-appt-msg) t))) | |
505 | (unless (member time-msg appt-time-msg-list) | |
506 | (setq appt-time-msg-list | |
507 | (appt-sort-list (nconc appt-time-msg-list (list time-msg))))))) | |
902a0e3c | 508 | |
f3e7c0dc | 509 | ;;;###autoload |
902a0e3c JB |
510 | (defun appt-delete () |
511 | "Delete an appointment from the list of appointments." | |
512 | (interactive) | |
8d638c1b | 513 | (let ((tmp-msg-list appt-time-msg-list)) |
902a0e3c JB |
514 | (while tmp-msg-list |
515 | (let* ((element (car tmp-msg-list)) | |
a1506d29 | 516 | (prompt-string (concat "Delete " |
bf9a91d0 RS |
517 | ;; We want to quote any doublequotes |
518 | ;; in the string, as well as put | |
519 | ;; doublequotes around it. | |
520 | (prin1-to-string | |
521 | (substring-no-properties | |
a1506d29 | 522 | (car (cdr element)) 0)) |
902a0e3c JB |
523 | " from list? ")) |
524 | (test-input (y-or-n-p prompt-string))) | |
525 | (setq tmp-msg-list (cdr tmp-msg-list)) | |
526 | (if test-input | |
95cdbff5 | 527 | (setq appt-time-msg-list (delq element appt-time-msg-list))))) |
85bbde63 | 528 | (appt-check) |
902a0e3c | 529 | (message ""))) |
a1506d29 | 530 | |
902a0e3c | 531 | |
ea04824c DL |
532 | (eval-when-compile (defvar number) |
533 | (defvar original-date) | |
534 | (defvar diary-entries-list)) | |
637a8ae9 | 535 | ;;;###autoload |
902a0e3c | 536 | (defun appt-make-list () |
5fac723a | 537 | "Update the appointments list from today's diary buffer. |
d073fa5b | 538 | The time must be at the beginning of a line for it to be |
8d638c1b GM |
539 | put in the appointments list (see examples in documentation of |
540 | the function `appt-check'). We assume that the variables DATE and | |
59b79385 | 541 | NUMBER hold the arguments that `diary-list-entries' received. |
5fac723a RS |
542 | They specify the range of dates that the diary is being processed for. |
543 | ||
544 | Any appointments made with `appt-add' are not affected by this | |
871ce753 GM |
545 | function. |
546 | ||
547 | For backwards compatibility, this function activates the | |
548 | appointment package (if it is not already active)." | |
549 | ;; See comments above appt-activate defun. | |
550 | (if (not appt-timer) | |
551 | (appt-activate 1) | |
552 | ;; We have something to do if the range of dates that the diary is | |
553 | ;; considering includes the current date. | |
554 | (if (and (not (calendar-date-compare | |
555 | (list (calendar-current-date)) | |
556 | (list original-date))) | |
557 | (calendar-date-compare | |
558 | (list (calendar-current-date)) | |
559 | (list (calendar-gregorian-from-absolute | |
560 | (+ (calendar-absolute-from-gregorian original-date) | |
561 | number))))) | |
562 | (save-excursion | |
563 | ;; Clear the appointments list, then fill it in from the diary. | |
564 | (dolist (elt appt-time-msg-list) | |
565 | ;; Delete any entries that were not made with appt-add. | |
566 | (unless (nth 2 elt) | |
567 | (setq appt-time-msg-list | |
568 | (delq elt appt-time-msg-list)))) | |
569 | (if diary-entries-list | |
570 | ||
571 | ;; Cycle through the entry-list (diary-entries-list) | |
572 | ;; looking for entries beginning with a time. If | |
573 | ;; the entry begins with a time, add it to the | |
574 | ;; appt-time-msg-list. Then sort the list. | |
575 | ||
576 | (let ((entry-list diary-entries-list) | |
577 | (new-time-string "")) | |
578 | ;; Skip diary entries for dates before today. | |
579 | (while (and entry-list | |
580 | (calendar-date-compare | |
581 | (car entry-list) (list (calendar-current-date)))) | |
582 | (setq entry-list (cdr entry-list))) | |
583 | ;; Parse the entries for today. | |
584 | (while (and entry-list | |
585 | (calendar-date-equal | |
586 | (calendar-current-date) (car (car entry-list)))) | |
587 | (let ((time-string (cadr (car entry-list)))) | |
0cb7f2c0 | 588 | (while (string-match appt-time-regexp time-string) |
871ce753 GM |
589 | (let* ((beg (match-beginning 0)) |
590 | ;; Get just the time for this appointment. | |
0cb7f2c0 | 591 | (only-time (match-string 0 time-string)) |
871ce753 GM |
592 | ;; Find the end of this appointment |
593 | ;; (the start of the next). | |
594 | (end (string-match | |
0cb7f2c0 | 595 | (concat "\n[ \t]*" appt-time-regexp) |
871ce753 GM |
596 | time-string |
597 | (match-end 0))) | |
598 | ;; Get the whole string for this appointment. | |
599 | (appt-time-string | |
600 | (substring time-string beg (if end (1- end))))) | |
601 | ||
602 | ;; Add this appointment to appt-time-msg-list. | |
603 | (let* ((appt-time (list (appt-convert-time only-time))) | |
604 | (time-msg (list appt-time appt-time-string))) | |
605 | (setq appt-time-msg-list | |
606 | (nconc appt-time-msg-list (list time-msg)))) | |
607 | ||
608 | ;; Discard this appointment from the string. | |
609 | (setq time-string | |
610 | (if end (substring time-string end) ""))))) | |
611 | (setq entry-list (cdr entry-list))))) | |
612 | (setq appt-time-msg-list (appt-sort-list appt-time-msg-list)) | |
613 | ||
614 | ;; Get the current time and convert it to minutes | |
615 | ;; from midnight. ie. 12:01am = 1, midnight = 0, | |
616 | ;; so that the elements in the list | |
617 | ;; that are earlier than the present time can | |
618 | ;; be removed. | |
619 | ||
620 | (let* ((now (decode-time)) | |
621 | (cur-hour (nth 2 now)) | |
622 | (cur-min (nth 1 now)) | |
623 | (cur-comp-time (+ (* cur-hour 60) cur-min)) | |
624 | (appt-comp-time (car (caar appt-time-msg-list)))) | |
625 | ||
626 | (while (and appt-time-msg-list (< appt-comp-time cur-comp-time)) | |
627 | (setq appt-time-msg-list (cdr appt-time-msg-list)) | |
628 | (if appt-time-msg-list | |
629 | (setq appt-comp-time (car (caar appt-time-msg-list)))))))))) | |
a1506d29 | 630 | |
902a0e3c | 631 | |
902a0e3c | 632 | (defun appt-sort-list (appt-list) |
8d638c1b GM |
633 | "Sort an appointment list, putting earlier items at the front. |
634 | APPT-LIST is a list of the same format as `appt-time-msg-list'." | |
635 | (sort appt-list (lambda (e1 e2) (< (caar e1) (caar e2))))) | |
902a0e3c JB |
636 | |
637 | ||
638 | (defun appt-convert-time (time2conv) | |
3b42c185 | 639 | "Convert hour:min[am/pm] format to minutes from midnight. |
8d638c1b GM |
640 | A period (.) can be used instead of a colon (:) to separate the |
641 | hour and minute parts." | |
0cb7f2c0 SM |
642 | ;; Formats that should be accepted: |
643 | ;; 10:00 10.00 10h00 10h 10am 10:00am 10.00am | |
644 | (let ((min (if (string-match "[h:.]\\([0-9][0-9]\\)" time2conv) | |
645 | (string-to-number (match-string 1 time2conv)) | |
646 | 0)) | |
647 | (hr (if (string-match "[0-9]*[0-9]" time2conv) | |
648 | (string-to-number (match-string 0 time2conv)) | |
649 | 0))) | |
a1506d29 | 650 | |
902a0e3c | 651 | ;; convert the time appointment time into 24 hour time |
85bbde63 GM |
652 | (cond ((and (string-match "pm" time2conv) (< hr 12)) |
653 | (setq hr (+ 12 hr))) | |
654 | ((and (string-match "am" time2conv) (= hr 12)) | |
655 | (setq hr 0))) | |
a1506d29 | 656 | |
0cb7f2c0 SM |
657 | ;; convert the actual time into minutes. |
658 | (+ (* hr 60) min))) | |
902a0e3c | 659 | |
902a0e3c | 660 | |
8d638c1b GM |
661 | (defun appt-update-list () |
662 | "If the current buffer is visiting the diary, update appointments. | |
663 | This function is intended for use with `write-file-functions'." | |
359bff67 | 664 | (and (string-equal buffer-file-name (expand-file-name diary-file)) |
8d638c1b GM |
665 | appt-timer |
666 | (let ((appt-display-diary nil)) | |
667 | (appt-check t))) | |
668 | nil) | |
669 | ||
670 | ||
871ce753 GM |
671 | ;; In Emacs-21.3, the manual documented the following procedure to |
672 | ;; activate this package: | |
673 | ;; (display-time) | |
674 | ;; (add-hook 'diary-hook 'appt-make-list) | |
675 | ;; (diary 0) | |
676 | ;; The display-time call was not necessary, AFAICS. | |
677 | ;; What was really needed was to add the hook and load this file. | |
678 | ;; Calling (diary 0) once the hook had been added was in some sense a | |
679 | ;; roundabout way of loading this file. This file used to have code at | |
680 | ;; the top-level that set up the appt-timer and global-mode-string. | |
681 | ;; One way to maintain backwards compatibility would be to call | |
682 | ;; (appt-activate 1) at top-level. However, this goes against the | |
683 | ;; convention that just loading an Emacs package should not activate | |
684 | ;; it. Instead, we make appt-make-list activate the package (after a | |
685 | ;; suggestion from rms). This means that one has to call diary in | |
686 | ;; order to get it to work, but that is in line with the old (weird, | |
687 | ;; IMO) documented behavior for activating the package. | |
688 | ;; Actually, since (diary 0) does not run diary-hook, I don't think | |
689 | ;; the documented behavior in Emacs-21.3 would ever have worked. | |
690 | ;; Oh well, at least with the changes to appt-make-list it will now | |
691 | ;; work as well as it ever did. | |
692 | ;; The new method is just to use (appt-activate 1). | |
693 | ;; -- gmorris | |
694 | ||
8d638c1b GM |
695 | ;;;###autoload |
696 | (defun appt-activate (&optional arg) | |
697 | "Toggle checking of appointments. | |
698 | With optional numeric argument ARG, turn appointment checking on if | |
699 | ARG is positive, otherwise off." | |
700 | (interactive "P") | |
701 | (let ((appt-active appt-timer)) | |
702 | (setq appt-active (if arg (> (prefix-numeric-value arg) 0) | |
703 | (not appt-active))) | |
704 | (remove-hook 'write-file-functions 'appt-update-list) | |
705 | (or global-mode-string (setq global-mode-string '(""))) | |
706 | (delq 'appt-mode-string global-mode-string) | |
a19de628 GM |
707 | (when appt-timer |
708 | (cancel-timer appt-timer) | |
709 | (setq appt-timer nil)) | |
8d638c1b GM |
710 | (when appt-active |
711 | (add-hook 'write-file-functions 'appt-update-list) | |
712 | (setq appt-timer (run-at-time t 60 'appt-check) | |
713 | global-mode-string | |
714 | (append global-mode-string '(appt-mode-string))) | |
715 | (appt-check t)))) | |
716 | ||
efa434d9 | 717 | |
8d638c1b | 718 | (provide 'appt) |
5b586155 | 719 | |
0cb7f2c0 | 720 | ;; arch-tag: bf5791c4-8921-499e-a26f-772b1788d347 |
efa434d9 | 721 | ;;; appt.el ends here |