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6343ed61 RS |
1 | ;;; desktop.el --- save partial status of Emacs when killed |
2 | ||
291e3b68 GM |
3 | ;; Copyright (C) 1993, 1994, 1995, 1997, 2000, 2001 |
4 | ;; Free Software Foundation, Inc. | |
6343ed61 RS |
5 | |
6 | ;; Author: Morten Welinder <terra@diku.dk> | |
16906a65 | 7 | ;; Maintainter: Lars Hansen <larsh@math.ku.dk> |
3ea96cac | 8 | ;; Keywords: convenience |
b6105c76 | 9 | ;; Favourite-brand-of-beer: None, I hate beer. |
6343ed61 RS |
10 | |
11 | ;; This file is part of GNU Emacs. | |
12 | ||
13 | ;; GNU Emacs is free software; you can redistribute it and/or modify | |
14 | ;; it under the terms of the GNU General Public License as published by | |
15 | ;; the Free Software Foundation; either version 2, or (at your option) | |
16 | ;; any later version. | |
17 | ||
18 | ;; GNU Emacs is distributed in the hope that it will be useful, | |
19 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
20 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
21 | ;; GNU General Public License for more details. | |
22 | ||
23 | ;; You should have received a copy of the GNU General Public License | |
b578f267 EN |
24 | ;; along with GNU Emacs; see the file COPYING. If not, write to the |
25 | ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
26 | ;; Boston, MA 02111-1307, USA. | |
6343ed61 RS |
27 | |
28 | ;;; Commentary: | |
29 | ||
0b9bd504 RS |
30 | ;; Save the Desktop, i.e., |
31 | ;; - some global variables | |
32 | ;; - the list of buffers with associated files. For each buffer also | |
33 | ;; - the major mode | |
34 | ;; - the default directory | |
35 | ;; - the point | |
36 | ;; - the mark & mark-active | |
37 | ;; - buffer-read-only | |
ec4c6f22 | 38 | ;; - some local variables |
6343ed61 | 39 | |
0e874d89 | 40 | ;; To use this, add these lines to the bottom of your .emacs file: |
0b9bd504 | 41 | ;; |
0e874d89 | 42 | ;; (require 'desktop) |
d12d9396 | 43 | ;; (setq desktop-enable t) |
0b9bd504 | 44 | ;; |
d12d9396 | 45 | ;; Between the first two lines you may wish to add something that updates the |
47640244 GM |
46 | ;; variables `desktop-globals-to-save' and/or `desktop-locals-to-save'. If |
47 | ;; for instance you want to save the local variable `foobar' for every buffer | |
48 | ;; in which it is local, you could add the line | |
ec4c6f22 | 49 | ;; |
d12d9396 | 50 | ;; (add-to-list 'desktop-locals-to-save 'foobar) |
ec4c6f22 | 51 | ;; |
f4c73d07 | 52 | ;; To avoid saving excessive amounts of data you may also wish to add |
ec4c6f22 RS |
53 | ;; something like the following |
54 | ;; | |
55 | ;; (add-hook 'kill-emacs-hook | |
de9e2828 | 56 | ;; '(lambda () |
ec4c6f22 RS |
57 | ;; (desktop-truncate search-ring 3) |
58 | ;; (desktop-truncate regexp-search-ring 3))) | |
59 | ;; | |
60 | ;; which will make sure that no more than three search items are saved. You | |
47640244 GM |
61 | ;; must place this line *after* the `(desktop-load-default)' line. See also |
62 | ;; the variable `desktop-save-hook'. | |
6343ed61 | 63 | |
0b9bd504 RS |
64 | ;; Start Emacs in the root directory of your "project". The desktop saver |
65 | ;; is inactive by default. You activate it by M-x desktop-save RET. When | |
66 | ;; you exit the next time the above data will be saved. This ensures that | |
67 | ;; all the files you were editing will be reloaded the next time you start | |
68 | ;; Emacs from the same directory and that points will be set where you | |
ec4c6f22 | 69 | ;; left them. If you save a desktop file in your home directory it will |
de9e2828 | 70 | ;; act as a default desktop when you start Emacs from a directory that |
ec4c6f22 RS |
71 | ;; doesn't have its own. I never do this, but you may want to. |
72 | ||
47640244 GM |
73 | ;; Some words on minor modes: Most minor modes are controlled by |
74 | ;; buffer-local variables, which have a standard save / restore | |
75 | ;; mechanism. To handle all minor modes, we take the following | |
76 | ;; approach: (1) check whether the variable name from | |
77 | ;; `minor-mode-alist' is also a function; and (2) use translation | |
78 | ;; table `desktop-minor-mode-table' in the case where the two names | |
79 | ;; are not the same. | |
80 | ||
ec4c6f22 RS |
81 | ;; By the way: don't use desktop.el to customize Emacs -- the file .emacs |
82 | ;; in your home directory is used for that. Saving global default values | |
83 | ;; for buffers is an example of misuse. | |
84 | ||
0b9bd504 RS |
85 | ;; PLEASE NOTE: The kill ring can be saved as specified by the variable |
86 | ;; `desktop-globals-to-save' (by default it isn't). This may result in saving | |
87 | ;; things you did not mean to keep. Use M-x desktop-clear RET. | |
ec4c6f22 | 88 | |
fa379636 KH |
89 | ;; Thanks to hetrick@phys.uva.nl (Jim Hetrick) for useful ideas. |
90 | ;; avk@rtsg.mot.com (Andrew V. Klein) for a dired tip. | |
91 | ;; chris@tecc.co.uk (Chris Boucher) for a mark tip. | |
92 | ;; f89-kam@nada.kth.se (Klas Mellbourn) for a mh-e tip. | |
93 | ;; kifer@sbkifer.cs.sunysb.edu (M. Kifer) for a bug hunt. | |
f4c73d07 | 94 | ;; treese@lcs.mit.edu (Win Treese) for ange-ftp tips. |
253406b9 | 95 | ;; pot@cnuce.cnr.it (Francesco Potorti`) for misc. tips. |
0b9bd504 RS |
96 | ;; --------------------------------------------------------------------------- |
97 | ;; TODO: | |
98 | ;; | |
99 | ;; Save window configuration. | |
100 | ;; Recognize more minor modes. | |
101 | ;; Save mark rings. | |
6343ed61 RS |
102 | |
103 | ;;; Code: | |
104 | ||
ec4c6f22 RS |
105 | ;; Make the compilation more silent |
106 | (eval-when-compile | |
107 | ;; We use functions from these modules | |
fa379636 KH |
108 | ;; We can't (require 'mh-e) since that wants to load something. |
109 | (mapcar 'require '(info dired reporter))) | |
4a2fce7a RS |
110 | |
111 | (defvar desktop-file-version "206" | |
112 | "Verion number of desktop file format. | |
113 | Written into the desktop file and used at desktop read to provide | |
114 | backward compatibility.") | |
115 | ||
ec4c6f22 | 116 | ;; ---------------------------------------------------------------------------- |
0b9bd504 RS |
117 | ;; USER OPTIONS -- settings you might want to play with. |
118 | ;; ---------------------------------------------------------------------------- | |
bbf5eb28 RS |
119 | |
120 | (defgroup desktop nil | |
121 | "Save status of Emacs when you exit." | |
122 | :group 'frames) | |
123 | ||
813dbb2d RS |
124 | (defcustom desktop-enable nil |
125 | "*Non-nil enable Desktop to save the state of Emacs when you exit." | |
126 | :group 'desktop | |
127 | :type 'boolean | |
128 | :require 'desktop | |
cd32a7ba DN |
129 | :initialize 'custom-initialize-default |
130 | :version "20.3") | |
813dbb2d | 131 | |
4a2fce7a RS |
132 | (defcustom desktop-save 'ask-if-new |
133 | "*When the user changes desktop or quits emacs, should the desktop be saved? | |
134 | \(in the current desktop directory) | |
135 | t -- always save. | |
136 | ask -- always ask. | |
137 | ask-if-new -- ask if no desktop file exists, otherwise just save. | |
138 | ask-if-exists -- ask if desktop file exists, otherwise don't save. | |
139 | if-exists -- save if desktop file exists, otherwise don't save. | |
140 | nil -- never save. | |
141 | The desktop is never saved when `desktop-enable' is nil." | |
142 | :type '(choice | |
143 | (const :tag "Always save" t) | |
144 | (const :tag "Always ask" ask) | |
145 | (const :tag "Ask if desktop file is new, else do save" ask-if-new) | |
146 | (const :tag "Ask if desktop file exists, else don't save" ask-if-exists) | |
147 | (const :tag "Save if desktop file exists, else don't" if-exists) | |
148 | (const :tag "Never save" nil)) | |
149 | :group 'desktop) | |
150 | ||
151 | (defcustom desktop-base-file-name | |
fc715501 | 152 | (convert-standard-filename ".emacs.desktop") |
813dbb2d RS |
153 | "File for Emacs desktop, not including the directory name." |
154 | :type 'file | |
155 | :group 'desktop) | |
7065d42f | 156 | (defvaralias 'desktop-basefilename 'desktop-base-file-name) |
6343ed61 | 157 | |
4a2fce7a RS |
158 | (defcustom desktop-path '("." "~") |
159 | "List of directories to search for the desktop file. | |
160 | The base name of the file is specified in `desktop-base-file-name'." | |
161 | :type '(repeat directory) | |
162 | :group 'desktop) | |
163 | ||
bbf5eb28 | 164 | (defcustom desktop-missing-file-warning nil |
577ed2b2 | 165 | "*If non-nil then desktop warns when a file no longer exists. |
bbf5eb28 RS |
166 | Otherwise it simply ignores that file." |
167 | :type 'boolean | |
168 | :group 'desktop) | |
6343ed61 | 169 | |
4a2fce7a RS |
170 | (defcustom desktop-no-desktop-file-hook nil |
171 | "Normal hook run after fail of `desktop-read' due to missing desktop file. | |
172 | May e.g. be used to show a dired buffer." | |
173 | :type 'hook | |
174 | :group 'desktop) | |
175 | ||
176 | (defcustom desktop-after-read-hook nil | |
177 | "Normal hook run after a sucessful `desktop-read'. | |
178 | May e.g. be used to show a buffer list." | |
179 | :type 'hook | |
180 | :group 'desktop) | |
181 | ||
182 | (defcustom desktop-save-hook nil | |
183 | "Hook run before desktop saves the state of Emacs. | |
184 | This is useful for truncating history lists, for example." | |
185 | :type 'hook | |
186 | :group 'desktop) | |
187 | ||
188 | (defcustom desktop-globals-to-save '( | |
189 | desktop-missing-file-warning | |
190 | tags-file-name | |
191 | tags-table-list | |
192 | search-ring | |
193 | regexp-search-ring | |
194 | register-alist) | |
0e7c8611 RS |
195 | "List of global variables to save when killing Emacs. |
196 | An element may be variable name (a symbol) | |
197 | or a cons cell of the form (VAR . MAX-SIZE), | |
198 | which means to truncate VAR's value to at most MAX-SIZE elements | |
4a2fce7a RS |
199 | \(if the value is a list) before saving the value. |
200 | Feature: Saving `kill-ring' implies saving `kill-ring-yank-pointer'." | |
201 | :type '(repeat (restricted-sexp :match-alternatives (symbolp consp))) | |
202 | :group 'desktop) | |
203 | ||
204 | (defcustom desktop-globals-to-clear '( | |
205 | kill-ring | |
206 | kill-ring-yank-pointer | |
207 | search-ring | |
208 | search-ring-yank-pointer | |
209 | regexp-search-ring | |
210 | regexp-search-ring-yank-pointer) | |
211 | "List of global variables set to clear by `desktop-clear'. | |
212 | An element may be variable name (a symbol) or a cons cell of the form | |
213 | \(VAR . FORM). Symbols are set to nil and for cons cells VAR is set | |
214 | to the value obtained by evaluateing FORM." | |
215 | :type '(repeat (restricted-sexp :match-alternatives (symbolp consp))) | |
216 | :group 'desktop) | |
217 | ||
218 | (defcustom desktop-clear-preserve-buffers-regexp | |
219 | "^\\*tramp/.+\\*$" | |
220 | "Regexp identifying buffers that `desktop-clear' should not delete." | |
221 | :type 'regexp | |
222 | :group 'desktop) | |
223 | ||
224 | ;; Maintained for backward compatibility | |
225 | (defcustom desktop-clear-preserve-buffers | |
226 | '("*scratch*" "*Messages*") | |
227 | "*List of buffer names that `desktop-clear' should not delete." | |
228 | :type '(repeat string) | |
229 | :group 'desktop) | |
230 | ||
231 | (defvar desktop-locals-to-save '( | |
232 | desktop-locals-to-save ; Itself! Think it over. | |
233 | truncate-lines | |
234 | case-fold-search | |
235 | case-replace | |
236 | fill-column | |
237 | overwrite-mode | |
238 | change-log-default-name | |
239 | line-number-mode) | |
577ed2b2 RS |
240 | "List of local variables to save for each buffer. |
241 | The variables are saved only when they really are local.") | |
de9e2828 | 242 | (make-variable-buffer-local 'desktop-locals-to-save) |
ec4c6f22 | 243 | |
0b9bd504 | 244 | ;; We skip .log files because they are normally temporary. |
a7acbbe4 | 245 | ;; (ftp) files because they require passwords and whatnot. |
0b9bd504 | 246 | ;; TAGS files to save time (tags-file-name is saved instead). |
bbf5eb28 | 247 | (defcustom desktop-buffers-not-to-save |
4a2fce7a RS |
248 | "\\(^nn\\.a[0-9]+\\|\\.log\\|(ftp)\\|^tags\\|^TAGS\\)$" |
249 | "Regexp identifying buffers that are to be excluded from saving." | |
250 | :type 'regexp | |
251 | :group 'desktop) | |
6343ed61 | 252 | |
fa379636 | 253 | ;; Skip ange-ftp files |
bbf5eb28 | 254 | (defcustom desktop-files-not-to-save |
fa379636 | 255 | "^/[^/:]*:" |
bbf5eb28 RS |
256 | "Regexp identifying files whose buffers are to be excluded from saving." |
257 | :type 'regexp | |
258 | :group 'desktop) | |
fa379636 | 259 | |
b6b70cda JW |
260 | (defcustom desktop-buffer-modes-to-save |
261 | '(Info-mode rmail-mode) | |
262 | "If a buffer is of one of these major modes, save the buffer name. | |
263 | It is up to the functions in `desktop-buffer-handlers' to decide | |
264 | whether the buffer should be recreated or not, and how." | |
265 | :type '(repeat symbol) | |
266 | :group 'desktop) | |
267 | ||
80f9f3db SM |
268 | (defcustom desktop-modes-not-to-save nil |
269 | "List of major modes whose buffers should not be saved." | |
270 | :type '(repeat symbol) | |
271 | :group 'desktop) | |
272 | ||
4a2fce7a RS |
273 | (defcustom desktop-file-name-format 'absolute |
274 | "*Format in which desktop file names should be saved. | |
275 | Possible values are: | |
276 | absolute -- Absolute file name. | |
277 | tilde -- Relative to ~. | |
278 | local -- Relative to directory of desktop file." | |
279 | :type '(choice (const absolute) (const tilde) (const local)) | |
bbf5eb28 | 280 | :group 'desktop) |
569c754e | 281 | |
b6b70cda JW |
282 | (defcustom desktop-buffer-misc-functions |
283 | '(desktop-buffer-info-misc-data | |
284 | desktop-buffer-dired-misc-data) | |
285 | "*Functions used to determine auxiliary information for a buffer. | |
286 | These functions are called in order, with no arguments. If a function | |
287 | returns non-nil, its value is saved along with the desktop buffer for | |
288 | which it was called; no further functions will be called. | |
289 | ||
4a2fce7a RS |
290 | File names should formatted using the call |
291 | \"(desktop-file-name FILE-NAME dirname)\". | |
292 | ||
b6b70cda JW |
293 | Later, when desktop.el restores the buffers it has saved, each of the |
294 | `desktop-buffer-handlers' functions will have access to a buffer local | |
295 | variable, named `desktop-buffer-misc', whose value is what the | |
296 | \"misc\" function returned previously." | |
297 | :type '(repeat function) | |
298 | :group 'desktop) | |
299 | ||
bbf5eb28 | 300 | (defcustom desktop-buffer-handlers |
0b9bd504 | 301 | '(desktop-buffer-dired |
6343ed61 | 302 | desktop-buffer-rmail |
ec4c6f22 | 303 | desktop-buffer-mh |
6343ed61 RS |
304 | desktop-buffer-info |
305 | desktop-buffer-file) | |
577ed2b2 | 306 | "*List of functions to call in order to create a buffer. |
569c754e | 307 | The functions are called without explicit parameters but can use the |
4a2fce7a RS |
308 | following variables: |
309 | ||
310 | desktop-file-version | |
311 | desktop-buffer-file-name | |
312 | desktop-buffer-name | |
313 | desktop-buffer-major-mode | |
314 | desktop-buffer-minor-modes | |
315 | desktop-buffer-point | |
316 | desktop-buffer-mark | |
317 | desktop-buffer-read-only | |
318 | desktop-buffer-misc | |
319 | desktop-buffer-locals | |
320 | ||
569c754e | 321 | If one function returns non-nil, no further functions are called. |
0a8c8225 RS |
322 | If the function returns a buffer, then the saved mode settings |
323 | and variable values for that buffer are copied into it." | |
bbf5eb28 RS |
324 | :type '(repeat function) |
325 | :group 'desktop) | |
ec4c6f22 | 326 | |
b6b70cda JW |
327 | (put 'desktop-buffer-handlers 'risky-local-variable t) |
328 | ||
47640244 GM |
329 | (defcustom desktop-minor-mode-table |
330 | '((auto-fill-function auto-fill-mode) | |
331 | (vc-mode nil)) | |
332 | "Table mapping minor mode variables to minor mode functions. | |
333 | Each entry has the form (NAME RESTORE-FUNCTION). | |
334 | NAME is the name of the buffer-local variable indicating that the minor | |
335 | mode is active. RESTORE-FUNCTION is the function to activate the minor mode. | |
336 | called. RESTORE-FUNCTION nil means don't try to restore the minor mode. | |
337 | Only minor modes for which the name of the buffer-local variable | |
338 | and the name of the minor mode function are different have to added to | |
339 | this table." | |
340 | :type 'sexp | |
341 | :group 'desktop) | |
342 | ||
0b9bd504 RS |
343 | ;; ---------------------------------------------------------------------------- |
344 | (defvar desktop-dirname nil | |
6343ed61 RS |
345 | "The directory in which the current desktop file resides.") |
346 | ||
347 | (defconst desktop-header | |
0b9bd504 RS |
348 | ";; -------------------------------------------------------------------------- |
349 | ;; Desktop File for Emacs | |
350 | ;; -------------------------------------------------------------------------- | |
6343ed61 | 351 | " "*Header to place in Desktop file.") |
de9e2828 RS |
352 | |
353 | (defvar desktop-delay-hook nil | |
354 | "Hooks run after all buffers are loaded; intended for internal use.") | |
813dbb2d | 355 | |
0b9bd504 | 356 | ;; ---------------------------------------------------------------------------- |
ec4c6f22 RS |
357 | (defun desktop-truncate (l n) |
358 | "Truncate LIST to at most N elements destructively." | |
359 | (let ((here (nthcdr (1- n) l))) | |
360 | (if (consp here) | |
de9e2828 | 361 | (setcdr here nil)))) |
f9be4574 | 362 | |
4a2fce7a | 363 | ;; ---------------------------------------------------------------------------- |
f9be4574 RS |
364 | (defun desktop-clear () |
365 | "Empty the Desktop. | |
4a2fce7a RS |
366 | This kills all buffers except for internal ones and those listed |
367 | in `desktop-clear-preserve-buffers'. Furthermore, it clears the | |
368 | variables listed in `desktop-globals-to-clear'." | |
6343ed61 | 369 | (interactive) |
4a2fce7a RS |
370 | (dolist (var desktop-globals-to-clear) |
371 | (if (symbolp var) | |
372 | (eval `(setq-default ,var nil)) | |
373 | (eval `(setq-default ,(car var) ,(cdr var))))) | |
f9be4574 RS |
374 | (let ((buffers (buffer-list))) |
375 | (while buffers | |
4a2fce7a RS |
376 | (let ((bufname (buffer-name (car buffers)))) |
377 | (or | |
378 | (null bufname) | |
379 | (string-match desktop-clear-preserve-buffers-regexp bufname) | |
380 | (member bufname desktop-clear-preserve-buffers) | |
381 | ;; Don't kill buffers made for internal purposes. | |
382 | (and (not (equal bufname "")) (eq (aref bufname 0) ?\ )) | |
383 | (kill-buffer (car buffers)))) | |
f9be4574 | 384 | (setq buffers (cdr buffers)))) |
b6105c76 | 385 | (delete-other-windows)) |
4a2fce7a | 386 | |
0b9bd504 | 387 | ;; ---------------------------------------------------------------------------- |
de9e2828 | 388 | (add-hook 'kill-emacs-hook 'desktop-kill) |
ec4c6f22 | 389 | |
6343ed61 | 390 | (defun desktop-kill () |
4a2fce7a RS |
391 | "If `desktop-enable' is non-nil, do what `desktop-save' says to do. |
392 | If the desktop should be saved and `desktop-dirname' | |
393 | is nil, ask the user where to save the desktop." | |
394 | (when | |
395 | (and | |
396 | desktop-enable | |
73b0b745 | 397 | (let ((exists (file-exists-p (expand-file-name desktop-base-file-name desktop-dirname)))) |
4a2fce7a | 398 | (or |
d12d9396 | 399 | (eq desktop-save t) |
4a2fce7a RS |
400 | (and exists (memq desktop-save '(ask-if-new if-exists))) |
401 | (and | |
402 | (or | |
403 | (memq desktop-save '(ask ask-if-new)) | |
404 | (and exists (eq desktop-save 'ask-if-exists))) | |
405 | (y-or-n-p "Save desktop? "))))) | |
406 | (unless desktop-dirname | |
407 | (setq desktop-dirname | |
73b0b745 JB |
408 | (file-name-as-directory |
409 | (expand-file-name | |
410 | (call-interactively | |
411 | (lambda (dir) (interactive "DDirectory for desktop file: ") dir)))))) | |
4a2fce7a RS |
412 | (condition-case err |
413 | (desktop-save desktop-dirname) | |
414 | (file-error | |
415 | (unless (yes-or-no-p "Error while saving the desktop. Ignore? ") | |
416 | (signal (car err) (cdr err))))))) | |
417 | ||
0b9bd504 | 418 | ;; ---------------------------------------------------------------------------- |
ed2f7fc8 RS |
419 | (defun desktop-list* (&rest args) |
420 | (if (null (cdr args)) | |
421 | (car args) | |
422 | (setq args (nreverse args)) | |
423 | (let ((value (cons (nth 1 args) (car args)))) | |
424 | (setq args (cdr (cdr args))) | |
425 | (while args | |
426 | (setq value (cons (car args) value)) | |
427 | (setq args (cdr args))) | |
428 | value))) | |
429 | ||
4a2fce7a | 430 | ;; ---------------------------------------------------------------------------- |
de9e2828 | 431 | (defun desktop-internal-v2s (val) |
577ed2b2 RS |
432 | "Convert VALUE to a pair (QUOTE . TXT); (eval (read TXT)) gives VALUE. |
433 | TXT is a string that when read and evaluated yields value. | |
434 | QUOTE may be `may' (value may be quoted), | |
435 | `must' (values must be quoted), or nil (value may not be quoted)." | |
de9e2828 | 436 | (cond |
e2247420 | 437 | ((or (numberp val) (null val) (eq t val)) |
de9e2828 | 438 | (cons 'may (prin1-to-string val))) |
e2247420 | 439 | ((stringp val) |
95bf6435 RS |
440 | (let ((copy (copy-sequence val))) |
441 | (set-text-properties 0 (length copy) nil copy) | |
442 | ;; Get rid of text properties because we cannot read them | |
443 | (cons 'may (prin1-to-string copy)))) | |
de9e2828 RS |
444 | ((symbolp val) |
445 | (cons 'must (prin1-to-string val))) | |
446 | ((vectorp val) | |
447 | (let* ((special nil) | |
448 | (pass1 (mapcar | |
449 | (lambda (el) | |
450 | (let ((res (desktop-internal-v2s el))) | |
451 | (if (null (car res)) | |
452 | (setq special t)) | |
453 | res)) | |
454 | val))) | |
455 | (if special | |
456 | (cons nil (concat "(vector " | |
457 | (mapconcat (lambda (el) | |
458 | (if (eq (car el) 'must) | |
459 | (concat "'" (cdr el)) | |
460 | (cdr el))) | |
461 | pass1 | |
462 | " ") | |
463 | ")")) | |
464 | (cons 'may (concat "[" (mapconcat 'cdr pass1 " ") "]"))))) | |
465 | ((consp val) | |
b4929f75 RS |
466 | (let ((p val) |
467 | newlist | |
ed2f7fc8 | 468 | use-list* |
b4929f75 RS |
469 | anynil) |
470 | (while (consp p) | |
471 | (let ((q.txt (desktop-internal-v2s (car p)))) | |
472 | (or anynil (setq anynil (null (car q.txt)))) | |
473 | (setq newlist (cons q.txt newlist))) | |
474 | (setq p (cdr p))) | |
475 | (if p | |
476 | (let ((last (desktop-internal-v2s p)) | |
477 | (el (car newlist))) | |
ed2f7fc8 RS |
478 | (or anynil (setq anynil (null (car last)))) |
479 | (or anynil | |
480 | (setq newlist (cons '(must . ".") newlist))) | |
481 | (setq use-list* t) | |
482 | (setq newlist (cons last newlist)))) | |
b4929f75 RS |
483 | (setq newlist (nreverse newlist)) |
484 | (if anynil | |
485 | (cons nil | |
ed2f7fc8 | 486 | (concat (if use-list* "(desktop-list* " "(list ") |
b4929f75 RS |
487 | (mapconcat (lambda (el) |
488 | (if (eq (car el) 'must) | |
489 | (concat "'" (cdr el)) | |
490 | (cdr el))) | |
491 | newlist | |
492 | " ") | |
493 | ")")) | |
494 | (cons 'must | |
495 | (concat "(" (mapconcat 'cdr newlist " ") ")"))))) | |
de9e2828 RS |
496 | ((subrp val) |
497 | (cons nil (concat "(symbol-function '" | |
498 | (substring (prin1-to-string val) 7 -1) | |
499 | ")"))) | |
500 | ((markerp val) | |
501 | (let ((pos (prin1-to-string (marker-position val))) | |
502 | (buf (prin1-to-string (buffer-name (marker-buffer val))))) | |
503 | (cons nil (concat "(let ((mk (make-marker)))" | |
504 | " (add-hook 'desktop-delay-hook" | |
505 | " (list 'lambda '() (list 'set-marker mk " | |
506 | pos " (get-buffer " buf ")))) mk)")))) | |
507 | (t ; save as text | |
fa379636 | 508 | (cons 'may "\"Unprintable entity\"")))) |
de9e2828 | 509 | |
4a2fce7a | 510 | ;; ---------------------------------------------------------------------------- |
ec4c6f22 | 511 | (defun desktop-value-to-string (val) |
577ed2b2 RS |
512 | "Convert VALUE to a string that when read evaluates to the same value. |
513 | Not all types of values are supported." | |
de9e2828 RS |
514 | (let* ((print-escape-newlines t) |
515 | (float-output-format nil) | |
516 | (quote.txt (desktop-internal-v2s val)) | |
517 | (quote (car quote.txt)) | |
518 | (txt (cdr quote.txt))) | |
519 | (if (eq quote 'must) | |
520 | (concat "'" txt) | |
521 | txt))) | |
4a2fce7a | 522 | |
ec4c6f22 | 523 | ;; ---------------------------------------------------------------------------- |
0e7c8611 RS |
524 | (defun desktop-outvar (varspec) |
525 | "Output a setq statement for variable VAR to the desktop file. | |
526 | The argument VARSPEC may be the variable name VAR (a symbol), | |
527 | or a cons cell of the form (VAR . MAX-SIZE), | |
528 | which means to truncate VAR's value to at most MAX-SIZE elements | |
529 | \(if the value is a list) before saving the value." | |
530 | (let (var size) | |
531 | (if (consp varspec) | |
532 | (setq var (car varspec) size (cdr varspec)) | |
533 | (setq var varspec)) | |
534 | (if (boundp var) | |
535 | (progn | |
536 | (if (and (integerp size) | |
537 | (> size 0) | |
538 | (listp (eval var))) | |
47640244 | 539 | (desktop-truncate (eval var) size)) |
0e7c8611 RS |
540 | (insert "(setq " |
541 | (symbol-name var) | |
542 | " " | |
543 | (desktop-value-to-string (symbol-value var)) | |
544 | ")\n"))))) | |
4a2fce7a | 545 | |
0b9bd504 | 546 | ;; ---------------------------------------------------------------------------- |
ec4c6f22 | 547 | (defun desktop-save-buffer-p (filename bufname mode &rest dummy) |
b6105c76 | 548 | "Return t if the desktop should record a particular buffer for next startup. |
0b9bd504 | 549 | FILENAME is the visited file name, BUFNAME is the buffer name, and |
6343ed61 | 550 | MODE is the major mode." |
fa379636 | 551 | (let ((case-fold-search nil)) |
80f9f3db SM |
552 | (and (not (string-match desktop-buffers-not-to-save bufname)) |
553 | (not (memq mode desktop-modes-not-to-save)) | |
554 | (or (and filename | |
555 | (not (string-match desktop-files-not-to-save filename))) | |
556 | (and (eq mode 'dired-mode) | |
557 | (save-excursion | |
558 | (set-buffer (get-buffer bufname)) | |
559 | (not (string-match desktop-files-not-to-save | |
560 | default-directory)))) | |
561 | (and (null filename) | |
b6b70cda | 562 | (memq mode desktop-buffer-modes-to-save)))))) |
4a2fce7a | 563 | |
0b9bd504 | 564 | ;; ---------------------------------------------------------------------------- |
4a2fce7a RS |
565 | (defun desktop-file-name (filename dirname) |
566 | "Convert FILENAME to format specified in `desktop-file-name-format'. | |
567 | DIRNAME must be the directory in which the desktop file will be saved." | |
568 | (cond | |
569 | ((not filename) nil) | |
570 | ((eq desktop-file-name-format 'tilde) | |
571 | (let ((relative-name (file-relative-name (expand-file-name filename) "~"))) | |
572 | (cond | |
573 | ((file-name-absolute-p relative-name) relative-name) | |
574 | ((string= "./" relative-name) "~/") | |
575 | ((string= "." relative-name) "~") | |
576 | (t (concat "~/" relative-name))))) | |
577 | ((eq desktop-file-name-format 'local) (file-relative-name filename dirname)) | |
578 | (t (expand-file-name filename)))) | |
e5714620 | 579 | |
4a2fce7a | 580 | ;; ---------------------------------------------------------------------------- |
6343ed61 | 581 | (defun desktop-save (dirname) |
4a2fce7a | 582 | "Save the Desktop file. Parameter DIRNAME specifies where to save desktop." |
6343ed61 | 583 | (interactive "DDirectory to save desktop file in: ") |
fa379636 | 584 | (run-hooks 'desktop-save-hook) |
7bcbf3c2 | 585 | (setq dirname (file-name-as-directory (expand-file-name dirname))) |
6343ed61 | 586 | (save-excursion |
73b0b745 | 587 | (let ((filename (expand-file-name desktop-base-file-name dirname)) |
7bcbf3c2 JB |
588 | (info |
589 | (mapcar | |
590 | (function | |
591 | (lambda (b) | |
592 | (set-buffer b) | |
593 | (list | |
594 | (desktop-file-name (buffer-file-name) dirname) | |
595 | (buffer-name) | |
596 | major-mode | |
597 | ;; minor modes | |
598 | (let (ret) | |
599 | (mapcar | |
600 | #'(lambda (mim) | |
601 | (and | |
602 | (boundp mim) | |
603 | (symbol-value mim) | |
604 | (setq ret | |
605 | (cons | |
606 | (let ((special (assq mim desktop-minor-mode-table))) | |
607 | (if special (cadr special) mim)) | |
608 | ret)))) | |
609 | (mapcar #'car minor-mode-alist)) | |
610 | ret) | |
611 | (point) | |
612 | (list (mark t) mark-active) | |
613 | buffer-read-only | |
614 | (run-hook-with-args-until-success 'desktop-buffer-misc-functions) | |
615 | (let ((locals desktop-locals-to-save) | |
616 | (loclist (buffer-local-variables)) | |
617 | (ll)) | |
618 | (while locals | |
619 | (let ((here (assq (car locals) loclist))) | |
620 | (if here | |
621 | (setq ll (cons here ll)) | |
622 | (when (member (car locals) loclist) | |
623 | (setq ll (cons (car locals) ll))))) | |
624 | (setq locals (cdr locals))) | |
625 | ll)))) | |
626 | (buffer-list))) | |
627 | (buf (get-buffer-create "*desktop*"))) | |
6343ed61 RS |
628 | (set-buffer buf) |
629 | (erase-buffer) | |
fa379636 | 630 | |
4a2fce7a RS |
631 | (insert |
632 | ";; -*- coding: emacs-mule; -*-\n" | |
633 | desktop-header | |
634 | ";; Created " (current-time-string) "\n" | |
635 | ";; Desktop file format version " desktop-file-version "\n" | |
636 | ";; Emacs version " emacs-version "\n\n" | |
637 | ";; Global section:\n") | |
6343ed61 RS |
638 | (mapcar (function desktop-outvar) desktop-globals-to-save) |
639 | (if (memq 'kill-ring desktop-globals-to-save) | |
4a2fce7a RS |
640 | (insert |
641 | "(setq kill-ring-yank-pointer (nthcdr " | |
642 | (int-to-string (- (length kill-ring) (length kill-ring-yank-pointer))) | |
643 | " kill-ring))\n")) | |
6343ed61 | 644 | |
4a2fce7a | 645 | (insert "\n;; Buffer section -- buffers listed in same order as in buffer list:\n") |
de9e2828 | 646 | (mapcar |
4a2fce7a RS |
647 | (function |
648 | (lambda (l) | |
649 | (if (apply 'desktop-save-buffer-p l) | |
650 | (progn | |
651 | (insert "(desktop-create-buffer " desktop-file-version) | |
652 | (mapcar | |
653 | (function | |
654 | (lambda (e) | |
655 | (insert "\n " (desktop-value-to-string e)))) | |
656 | l) | |
657 | (insert ")\n\n"))))) | |
658 | info) | |
6343ed61 | 659 | (setq default-directory dirname) |
4a2fce7a | 660 | (when (file-exists-p filename) (delete-file filename)) |
7642acca | 661 | (let ((coding-system-for-write 'emacs-mule)) |
4a2fce7a | 662 | (write-region (point-min) (point-max) filename nil 'nomessage)))) |
6343ed61 | 663 | (setq desktop-dirname dirname)) |
4a2fce7a | 664 | |
0b9bd504 | 665 | ;; ---------------------------------------------------------------------------- |
6343ed61 RS |
666 | (defun desktop-remove () |
667 | "Delete the Desktop file and inactivate the desktop system." | |
668 | (interactive) | |
669 | (if desktop-dirname | |
73b0b745 JB |
670 | (let ((filename (expand-file-name desktop-base-file-name desktop-dirname))) |
671 | (setq desktop-dirname nil) | |
672 | (if (file-exists-p filename) | |
673 | (delete-file filename))))) | |
0b9bd504 | 674 | ;; ---------------------------------------------------------------------------- |
478653c9 | 675 | ;;;###autoload |
6343ed61 | 676 | (defun desktop-read () |
253406b9 | 677 | "Read the Desktop file and the files it specifies. |
4a2fce7a RS |
678 | This is a no-op when Emacs is running in batch mode. |
679 | Look for the desktop file according to the variables `desktop-base-file-name' | |
680 | and `desktop-path'. If no desktop file is found, clear the desktop. | |
681 | Returns t if it has read a desktop file, nil otherwise." | |
6343ed61 | 682 | (interactive) |
4a2fce7a RS |
683 | (unless noninteractive |
684 | (let ((dirs desktop-path)) | |
685 | (while | |
686 | (and | |
687 | dirs | |
688 | (not | |
689 | (file-exists-p (expand-file-name desktop-base-file-name (car dirs))))) | |
690 | (setq dirs (cdr dirs))) | |
73b0b745 | 691 | (setq desktop-dirname (and dirs (file-name-as-directory (expand-file-name (car dirs))))) |
253406b9 | 692 | (if desktop-dirname |
4a2fce7a | 693 | (let ((desktop-first-buffer nil)) |
7bcbf3c2 | 694 | ;; Evaluate desktop buffer. |
4a2fce7a | 695 | (load (expand-file-name desktop-base-file-name desktop-dirname) t t t) |
7bcbf3c2 JB |
696 | ;; `desktop-create-buffer' puts buffers at end of the buffer list. |
697 | ;; We want buffers existing prior to evaluating the desktop (and not reused) | |
698 | ;; to be placed at the end of the buffer list, so we move them here. | |
699 | (mapcar 'bury-buffer | |
700 | (nreverse (cdr (memq desktop-first-buffer (nreverse (buffer-list)))))) | |
701 | (switch-to-buffer (car (buffer-list))) | |
4a2fce7a RS |
702 | (run-hooks 'desktop-delay-hook) |
703 | (setq desktop-delay-hook nil) | |
704 | (run-hooks 'desktop-after-read-hook) | |
705 | (message "Desktop loaded.") | |
706 | t) | |
707 | (desktop-clear) | |
708 | (run-hooks 'desktop-no-desktop-file-hook) | |
709 | (message "No desktop file.") | |
710 | nil)))) | |
711 | ||
0b9bd504 | 712 | ;; ---------------------------------------------------------------------------- |
478653c9 | 713 | ;;;###autoload |
6343ed61 | 714 | (defun desktop-load-default () |
577ed2b2 RS |
715 | "Load the `default' start-up library manually. |
716 | Also inhibit further loading of it. Call this from your `.emacs' file | |
717 | to provide correct modes for autoloaded files." | |
0b9bd504 | 718 | (if (not inhibit-default-init) ; safety check |
6343ed61 RS |
719 | (progn |
720 | (load "default" t t) | |
721 | (setq inhibit-default-init t)))) | |
4a2fce7a RS |
722 | |
723 | ;; ---------------------------------------------------------------------------- | |
724 | ;;;###autoload | |
725 | (defun desktop-change-dir (dir) | |
726 | "Save and clear the desktop, then load the desktop from directory DIR. | |
727 | However, if `desktop-enable' was nil at call, don't save the old desktop. | |
728 | This function always sets `desktop-enable' to t." | |
729 | (interactive "DNew directory: ") | |
73b0b745 | 730 | (setq dir (file-name-as-directory (expand-file-name dir desktop-dirname))) |
4a2fce7a RS |
731 | (desktop-kill) |
732 | (desktop-clear) | |
4a2fce7a | 733 | (setq desktop-enable t) |
73b0b745 JB |
734 | (let ((desktop-path (list dir)) |
735 | (default-directory dir)) | |
736 | (desktop-read)) | |
737 | ;; Set `desktop-dirname' even in no desktop file was found | |
738 | (setq desktop-dirname dir)) | |
739 | ;; ---------------------------------------------------------------------------- | |
4a2fce7a RS |
740 | ;;;###autoload |
741 | (defun desktop-save-in-load-dir () | |
742 | "Save desktop in directory from which it was loaded." | |
743 | (interactive) | |
744 | (if desktop-dirname | |
745 | (desktop-save desktop-dirname) | |
746 | (call-interactively 'desktop-save)) | |
747 | (message "Desktop saved in %s" desktop-dirname)) | |
748 | ||
749 | ;; ---------------------------------------------------------------------------- | |
750 | ;;;###autoload | |
751 | (defun desktop-revert () | |
752 | "Revert to the last loaded desktop." | |
753 | (interactive) | |
754 | (unless desktop-dirname (error "No desktop has been loaded")) | |
755 | (setq desktop-enable nil) | |
756 | (desktop-change-dir desktop-dirname)) | |
757 | ||
0b9bd504 RS |
758 | ;; ---------------------------------------------------------------------------- |
759 | ;; Note: the following functions use the dynamic variable binding in Lisp. | |
0b9bd504 | 760 | ;; |
4a2fce7a RS |
761 | |
762 | (eval-when-compile ; Just to silence the byte compiler | |
763 | (defvar desktop-file-version) | |
764 | (defvar desktop-buffer-file-name) | |
765 | (defvar desktop-buffer-name) | |
766 | (defvar desktop-buffer-major-mode) | |
767 | (defvar desktop-buffer-minor-modes) | |
768 | (defvar desktop-buffer-point) | |
769 | (defvar desktop-buffer-mark) | |
770 | (defvar desktop-buffer-read-only) | |
771 | (defvar desktop-buffer-misc) | |
772 | (defvar desktop-buffer-locals) | |
773 | ) | |
774 | ||
b6b70cda JW |
775 | (defun desktop-buffer-info-misc-data () |
776 | (if (eq major-mode 'Info-mode) | |
777 | (list Info-current-file | |
778 | Info-current-node))) | |
779 | ||
4a2fce7a | 780 | ;; ---------------------------------------------------------------------------- |
b6b70cda | 781 | (defun desktop-buffer-dired-misc-data () |
4a2fce7a RS |
782 | (when (eq major-mode 'dired-mode) |
783 | (eval-when-compile (defvar dirname)) | |
784 | (cons | |
df7eb2bd JB |
785 | ;; Value of `dired-directory'. |
786 | (if (consp dired-directory) | |
787 | ;; Directory name followed by list of files. | |
788 | (cons (desktop-file-name (car dired-directory) dirname) (cdr dired-directory)) | |
789 | ;; Directory name, optionally with with shell wildcard. | |
790 | (desktop-file-name dired-directory dirname)) | |
791 | ;; Subdirectories in `dired-subdir-alist'. | |
792 | (cdr | |
793 | (nreverse | |
794 | (mapcar | |
795 | (function (lambda (f) (desktop-file-name (car f) dirname))) | |
796 | dired-subdir-alist)))))) | |
b6b70cda | 797 | |
4a2fce7a | 798 | ;; ---------------------------------------------------------------------------- |
6343ed61 | 799 | (defun desktop-buffer-info () "Load an info file." |
569c754e | 800 | (if (eq 'Info-mode desktop-buffer-major-mode) |
6343ed61 | 801 | (progn |
b6b70cda JW |
802 | (let ((first (nth 0 desktop-buffer-misc)) |
803 | (second (nth 1 desktop-buffer-misc))) | |
804 | (when (and first second) | |
805 | (require 'info) | |
6df8016c RS |
806 | (with-no-warnings |
807 | (Info-find-node first second)) | |
b6b70cda | 808 | (current-buffer)))))) |
4a2fce7a | 809 | |
0b9bd504 | 810 | ;; ---------------------------------------------------------------------------- |
4a2fce7a | 811 | (eval-when-compile (defvar rmail-buffer)) ; Just to silence the byte compiler. |
b6105c76 | 812 | (defun desktop-buffer-rmail () "Load an RMAIL file." |
569c754e | 813 | (if (eq 'rmail-mode desktop-buffer-major-mode) |
e36d00d4 | 814 | (condition-case error |
608b9ed2 RS |
815 | (progn (rmail-input desktop-buffer-file-name) |
816 | (if (eq major-mode 'rmail-mode) | |
817 | (current-buffer) | |
818 | rmail-buffer)) | |
e2247420 RS |
819 | (file-locked |
820 | (kill-buffer (current-buffer)) | |
821 | 'ignored)))) | |
4a2fce7a | 822 | |
0b9bd504 | 823 | ;; ---------------------------------------------------------------------------- |
ec4c6f22 | 824 | (defun desktop-buffer-mh () "Load a folder in the mh system." |
569c754e | 825 | (if (eq 'mh-folder-mode desktop-buffer-major-mode) |
6df8016c | 826 | (with-no-warnings |
ec4c6f22 | 827 | (mh-find-path) |
608b9ed2 RS |
828 | (mh-visit-folder desktop-buffer-name) |
829 | (current-buffer)))) | |
4a2fce7a | 830 | |
ec4c6f22 | 831 | ;; ---------------------------------------------------------------------------- |
6343ed61 | 832 | (defun desktop-buffer-dired () "Load a directory using dired." |
569c754e | 833 | (if (eq 'dired-mode desktop-buffer-major-mode) |
df7eb2bd JB |
834 | ;; First element of `desktop-buffer-misc' is the value of `dired-directory'. |
835 | ;; This value is a directory name, optionally with with shell wildcard or | |
836 | ;; a directory name followed by list of files. | |
837 | (let* ((dired-directory (car desktop-buffer-misc)) | |
838 | (dir (if (consp dired-directory) (car dired-directory) dired-directory))) | |
839 | (if (file-directory-p (file-name-directory dir)) | |
840 | (progn | |
841 | (dired dired-directory) | |
842 | (mapcar 'dired-maybe-insert-subdir (cdr desktop-buffer-misc)) | |
843 | (current-buffer)) | |
844 | (message "Directory %s no longer exists." dir) | |
845 | (sit-for 1) | |
846 | 'ignored)))) | |
4a2fce7a | 847 | |
0b9bd504 | 848 | ;; ---------------------------------------------------------------------------- |
84b538ec JB |
849 | (defun desktop-buffer-file () |
850 | "Load a file." | |
569c754e RS |
851 | (if desktop-buffer-file-name |
852 | (if (or (file-exists-p desktop-buffer-file-name) | |
6343ed61 | 853 | (and desktop-missing-file-warning |
0b9bd504 RS |
854 | (y-or-n-p (format |
855 | "File \"%s\" no longer exists. Re-create? " | |
569c754e | 856 | desktop-buffer-file-name)))) |
80f9f3db SM |
857 | (let ((buf (find-file-noselect desktop-buffer-file-name))) |
858 | (condition-case nil | |
859 | (switch-to-buffer buf) | |
0a8c8225 | 860 | (error (pop-to-buffer buf))) |
84b538ec JB |
861 | (and (not (eq major-mode desktop-buffer-major-mode)) |
862 | (functionp desktop-buffer-major-mode) | |
863 | (funcall desktop-buffer-major-mode)) | |
0a8c8225 | 864 | buf) |
6343ed61 | 865 | 'ignored))) |
4a2fce7a | 866 | |
0b9bd504 RS |
867 | ;; ---------------------------------------------------------------------------- |
868 | ;; Create a buffer, load its file, set is mode, ...; called from Desktop file | |
6343ed61 | 869 | ;; only. |
1d500ca6 | 870 | |
4a2fce7a RS |
871 | (eval-when-compile ; Just to silence the byte compiler |
872 | (defvar desktop-first-buffer) ;; Dynamically bound in `desktop-read' | |
873 | ) | |
874 | ||
875 | (defun desktop-create-buffer ( | |
876 | desktop-file-version | |
877 | desktop-buffer-file-name | |
878 | desktop-buffer-name | |
879 | desktop-buffer-major-mode | |
880 | desktop-buffer-minor-modes | |
881 | desktop-buffer-point | |
882 | desktop-buffer-mark | |
883 | desktop-buffer-read-only | |
884 | desktop-buffer-misc | |
885 | &optional | |
886 | desktop-buffer-locals) | |
887 | ;; To make desktop files with relative file names possible, we cannot | |
888 | ;; allow `default-directory' to change. Therefore we save current buffer. | |
889 | (save-current-buffer | |
890 | (let ( | |
891 | (buffer-list (buffer-list)) | |
892 | (hlist desktop-buffer-handlers) | |
893 | (result) | |
894 | (handler) | |
895 | ) | |
896 | ;; Call desktop-buffer-handlers to create buffer. | |
897 | (while (and (not result) hlist) | |
898 | (setq handler (car hlist)) | |
899 | (setq result (funcall handler)) | |
900 | (setq hlist (cdr hlist))) | |
901 | (unless (bufferp result) (setq result nil)) | |
7bcbf3c2 JB |
902 | ;; Restore buffer list order with new buffer at end. Don't change |
903 | ;; the order for old desktop files (old desktop module behaviour). | |
4a2fce7a | 904 | (unless (< desktop-file-version 206) |
7bcbf3c2 JB |
905 | (mapcar 'bury-buffer buffer-list) |
906 | (when result (bury-buffer result))) | |
4a2fce7a | 907 | (when result |
7bcbf3c2 JB |
908 | (unless (or desktop-first-buffer (< desktop-file-version 206)) |
909 | (setq desktop-first-buffer result)) | |
4a2fce7a RS |
910 | (set-buffer result) |
911 | (unless (equal (buffer-name) desktop-buffer-name) | |
912 | (rename-buffer desktop-buffer-name)) | |
913 | ;; minor modes | |
914 | (cond ( | |
915 | ;; backwards compatible | |
916 | (equal '(t) desktop-buffer-minor-modes) | |
917 | (auto-fill-mode 1))( | |
918 | (equal '(nil) desktop-buffer-minor-modes) | |
919 | (auto-fill-mode 0))( | |
920 | t | |
921 | (mapcar | |
922 | #'(lambda (minor-mode) | |
923 | (when (functionp minor-mode) (funcall minor-mode 1))) | |
924 | desktop-buffer-minor-modes))) | |
925 | ;; Even though point and mark are non-nil when written by `desktop-save' | |
73b0b745 | 926 | ;; they may be modified by handlers wanting to set point or mark themselves. |
4a2fce7a RS |
927 | (when desktop-buffer-point (goto-char desktop-buffer-point)) |
928 | (when desktop-buffer-mark | |
929 | (if (consp desktop-buffer-mark) | |
930 | (progn | |
931 | (set-mark (car desktop-buffer-mark)) | |
932 | (setq mark-active (car (cdr desktop-buffer-mark)))) | |
933 | (set-mark desktop-buffer-mark))) | |
934 | ;; Never override file system if the file really is read-only marked. | |
935 | (if desktop-buffer-read-only (setq buffer-read-only desktop-buffer-read-only)) | |
936 | (while desktop-buffer-locals | |
937 | (let ((this (car desktop-buffer-locals))) | |
938 | (if (consp this) | |
939 | ;; an entry of this form `(symbol . value)' | |
940 | (progn | |
941 | (make-local-variable (car this)) | |
942 | (set (car this) (cdr this))) | |
943 | ;; an entry of the form `symbol' | |
944 | (make-local-variable this) | |
945 | (makunbound this))) | |
946 | (setq desktop-buffer-locals (cdr desktop-buffer-locals))))))) | |
ec4c6f22 | 947 | |
4a2fce7a | 948 | ;; ---------------------------------------------------------------------------- |
ec4c6f22 | 949 | ;; Backward compatibility -- update parameters to 205 standards. |
569c754e RS |
950 | (defun desktop-buffer (desktop-buffer-file-name desktop-buffer-name |
951 | desktop-buffer-major-mode | |
2699e23e | 952 | mim pt mk ro tl fc cfs cr desktop-buffer-misc) |
569c754e | 953 | (desktop-create-buffer 205 desktop-buffer-file-name desktop-buffer-name |
2699e23e RS |
954 | desktop-buffer-major-mode (cdr mim) pt mk ro |
955 | desktop-buffer-misc | |
ec4c6f22 RS |
956 | (list (cons 'truncate-lines tl) |
957 | (cons 'fill-column fc) | |
958 | (cons 'case-fold-search cfs) | |
959 | (cons 'case-replace cr) | |
960 | (cons 'overwrite-mode (car mim))))) | |
84b538ec | 961 | |
0b9bd504 | 962 | ;; ---------------------------------------------------------------------------- |
4a2fce7a RS |
963 | ;; When `desktop-enable' is non-nil and "--no-desktop" is not specified on the |
964 | ;; command line, we do the rest of what it takes to use desktop, but do it | |
965 | ;; after finishing loading the init file. | |
966 | ;; We cannot use `command-switch-alist' to process "--no-desktop" because these | |
967 | ;; functions are processed after `after-init-hook'. | |
968 | (add-hook | |
969 | 'after-init-hook | |
970 | '(lambda () | |
971 | (let ((key "--no-desktop")) | |
972 | (if (member key command-line-args) | |
973 | (delete key command-line-args) | |
974 | (when desktop-enable | |
975 | (desktop-load-default) | |
976 | (desktop-read)))))) | |
813dbb2d | 977 | |
ab1d55ea | 978 | (provide 'desktop) |
6343ed61 | 979 | |
ab5796a9 | 980 | ;;; arch-tag: 221907c3-1771-4fd3-9c2e-c6f700c6ede9 |
80f9f3db | 981 | ;;; desktop.el ends here |