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55535639 | 1 | ;;; frame.el --- multi-frame management independent of window systems |
c88ab9ce | 2 | |
0d30b337 TTN |
3 | ;; Copyright (C) 1993, 1994, 1996, 1997, 2000, 2001, 2002, 2003, |
4 | ;; 2004, 2005 Free Software Foundation, Inc. | |
3a801d0c | 5 | |
fc68affa | 6 | ;; Maintainer: FSF |
fd7fa35a | 7 | ;; Keywords: internal |
fc68affa | 8 | |
b578f267 EN |
9 | ;; This file is part of GNU Emacs. |
10 | ||
11 | ;; GNU Emacs is free software; you can redistribute it and/or modify | |
12 | ;; it under the terms of the GNU General Public License as published by | |
13 | ;; the Free Software Foundation; either version 2, or (at your option) | |
14 | ;; any later version. | |
15 | ||
16 | ;; GNU Emacs is distributed in the hope that it will be useful, | |
17 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
18 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
19 | ;; GNU General Public License for more details. | |
20 | ||
21 | ;; You should have received a copy of the GNU General Public License | |
22 | ;; along with GNU Emacs; see the file COPYING. If not, write to the | |
086add15 LK |
23 | ;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
24 | ;; Boston, MA 02110-1301, USA. | |
64c669bc | 25 | |
55535639 PJ |
26 | ;;; Commentary: |
27 | ||
fc68affa ER |
28 | ;;; Code: |
29 | ||
2246281f KL |
30 | (defvar frame-creation-function-alist |
31 | (list (cons nil | |
32 | (if (fboundp 'tty-create-frame-with-faces) | |
33 | 'tty-create-frame-with-faces | |
34 | (function | |
35 | (lambda (parameters) | |
36 | (error "Can't create multiple frames without a window system")))))) | |
37 | "Alist of window-system dependent functions to call to create a new frame. | |
38 | The window system startup file should add its frame creation | |
39 | function to this list, which should take an alist of parameters | |
40 | as its argument.") | |
114a8b8c | 41 | |
bf1ba39f KL |
42 | (defvar window-system-default-frame-alist nil |
43 | "Alist of window-system dependent default frame parameters. | |
44 | These may be set in your init file, like this: | |
45 | ||
46 | ;; Disable menubar and toolbar on the console, but enable them under X. | |
47 | (setq window-system-default-frame-alist | |
48 | '((x (menu-bar-lines . 1) (tool-bar-lines . 1)) | |
49 | (nil (menu-bar-lines . 0) (tool-bar-lines . 0)))) | |
50 | ||
51 | Also see `default-frame-alist'.") | |
52 | ||
7e573c4a SM |
53 | ;; The initial value given here used to ask for a minibuffer. |
54 | ;; But that's not necessary, because the default is to have one. | |
55 | ;; By not specifying it here, we let an X resource specify it. | |
0c966f88 | 56 | (defcustom initial-frame-alist nil |
0b9d32af | 57 | "*Alist of frame parameters for creating the initial X window frame. |
eaa974e1 | 58 | You can set this in your `.emacs' file; for example, |
dc6d9681 | 59 | (setq initial-frame-alist '((top . 1) (left . 1) (width . 80) (height . 55))) |
de17da15 RS |
60 | Parameters specified here supersede the values given in `default-frame-alist'. |
61 | ||
62 | If the value calls for a frame without a minibuffer, and you have not created | |
63 | a minibuffer frame on your own, one is created according to | |
7eadab74 | 64 | `minibuffer-frame-alist'. |
de17da15 RS |
65 | |
66 | You can specify geometry-related options for just the initial frame | |
67 | by setting this variable in your `.emacs' file; however, they won't | |
85557d7e | 68 | take effect until Emacs reads `.emacs', which happens after first creating |
de17da15 RS |
69 | the frame. If you want the frame to have the proper geometry as soon |
70 | as it appears, you need to use this three-step process: | |
71 | * Specify X resources to give the geometry you want. | |
72 | * Set `default-frame-alist' to override these options so that they | |
73 | don't affect subsequent frames. | |
74 | * Set `initial-frame-alist' in a way that matches the X resources, | |
0c966f88 RS |
75 | to override what you put in `default-frame-alist'." |
76 | :type '(repeat (cons :format "%v" | |
77 | (symbol :tag "Parameter") | |
78 | (sexp :tag "Value"))) | |
79 | :group 'frames) | |
64c669bc | 80 | |
0b9d32af RS |
81 | (defcustom minibuffer-frame-alist '((width . 80) (height . 2)) |
82 | "*Alist of frame parameters for initially creating a minibuffer frame. | |
eaa974e1 | 83 | You can set this in your `.emacs' file; for example, |
dc6d9681 | 84 | (setq minibuffer-frame-alist |
7eadab74 | 85 | '((top . 1) (left . 1) (width . 80) (height . 2))) |
eaa974e1 | 86 | Parameters specified here supersede the values given in |
0b9d32af RS |
87 | `default-frame-alist', for a minibuffer frame." |
88 | :type '(repeat (cons :format "%v" | |
89 | (symbol :tag "Parameter") | |
90 | (sexp :tag "Value"))) | |
91 | :group 'frames) | |
64c669bc | 92 | |
0b9d32af RS |
93 | (defcustom pop-up-frame-alist nil |
94 | "*Alist of frame parameters used when creating pop-up frames. | |
dc6d9681 | 95 | Pop-up frames are used for completions, help, and the like. |
64c669bc | 96 | This variable can be set in your init file, like this: |
dc6d9681 | 97 | (setq pop-up-frame-alist '((width . 80) (height . 20))) |
0b9d32af RS |
98 | These supersede the values given in `default-frame-alist', |
99 | for pop-up frames." | |
100 | :type '(repeat (cons :format "%v" | |
101 | (symbol :tag "Parameter") | |
102 | (sexp :tag "Value"))) | |
103 | :group 'frames) | |
64c669bc | 104 | |
dc6d9681 | 105 | (setq pop-up-frame-function |
7f18ce22 RS |
106 | ;; Using `function' here caused some sort of problem. |
107 | '(lambda () | |
108 | (make-frame pop-up-frame-alist))) | |
64c669bc | 109 | |
30e19aee | 110 | (defcustom special-display-frame-alist |
8a9e86e6 RS |
111 | '((height . 14) (width . 80) (unsplittable . t)) |
112 | "*Alist of frame parameters used when creating special frames. | |
113 | Special frames are used for buffers whose names are in | |
114 | `special-display-buffer-names' and for buffers whose names match | |
115 | one of the regular expressions in `special-display-regexps'. | |
116 | This variable can be set in your init file, like this: | |
117 | (setq special-display-frame-alist '((width . 80) (height . 20))) | |
30e19aee RS |
118 | These supersede the values given in `default-frame-alist'." |
119 | :type '(repeat (cons :format "%v" | |
120 | (symbol :tag "Parameter") | |
121 | (sexp :tag "Value"))) | |
122 | :group 'frames) | |
8a9e86e6 | 123 | |
95e6cf39 | 124 | (defun special-display-popup-frame (buffer &optional args) |
40d34803 DL |
125 | "Display BUFFER in its own frame, reusing an existing window if any. |
126 | Return the window chosen. | |
127 | Currently we do not insist on selecting the window within its frame. | |
128 | If ARGS is an alist, use it as a list of frame parameter specs. | |
129 | If ARGS is a list whose car is a symbol, | |
130 | use (car ARGS) as a function to do the work. | |
131 | Pass it BUFFER as first arg, and (cdr ARGS) gives the rest of the args." | |
95e6cf39 RS |
132 | (if (and args (symbolp (car args))) |
133 | (apply (car args) buffer (cdr args)) | |
bb2c34b1 | 134 | (let ((window (get-buffer-window buffer 0))) |
7e573c4a SM |
135 | (or |
136 | ;; If we have a window already, make it visible. | |
137 | (when window | |
138 | (let ((frame (window-frame window))) | |
139 | (make-frame-visible frame) | |
140 | (raise-frame frame) | |
141 | window)) | |
142 | ;; Reuse the current window if the user requested it. | |
143 | (when (cdr (assq 'same-window args)) | |
144 | (condition-case nil | |
145 | (progn (switch-to-buffer buffer) (selected-window)) | |
146 | (error nil))) | |
147 | ;; Stay on the same frame if requested. | |
148 | (when (or (cdr (assq 'same-frame args)) (cdr (assq 'same-window args))) | |
149 | (let* ((pop-up-frames nil) (pop-up-windows t) | |
150 | special-display-regexps special-display-buffer-names | |
151 | (window (display-buffer buffer))) | |
bb2c34b1 | 152 | ;; Only do it if this is a new window: |
7e573c4a SM |
153 | ;; (set-window-dedicated-p window t) |
154 | window)) | |
155 | ;; If no window yet, make one in a new frame. | |
bf247b6e | 156 | (let ((frame |
86bd482f RS |
157 | (with-current-buffer buffer |
158 | (make-frame (append args special-display-frame-alist))))) | |
7e573c4a SM |
159 | (set-window-buffer (frame-selected-window frame) buffer) |
160 | (set-window-dedicated-p (frame-selected-window frame) t) | |
161 | (frame-selected-window frame)))))) | |
8a9e86e6 | 162 | |
924be53a | 163 | (defun handle-delete-frame (event) |
40d34803 | 164 | "Handle delete-frame events from the X server." |
924be53a RS |
165 | (interactive "e") |
166 | (let ((frame (posn-window (event-start event))) | |
167 | (i 0) | |
168 | (tail (frame-list))) | |
169 | (while tail | |
170 | (and (frame-visible-p (car tail)) | |
171 | (not (eq (car tail) frame)) | |
172 | (setq i (1+ i))) | |
173 | (setq tail (cdr tail))) | |
174 | (if (> i 0) | |
175 | (delete-frame frame t) | |
a9562d19 RS |
176 | ;; Gildea@x.org says it is ok to ask questions before terminating. |
177 | (save-buffers-kill-emacs)))) | |
64c669bc | 178 | \f |
dc6d9681 | 179 | ;;;; Arrangement of frames at startup |
64c669bc | 180 | |
7e573c4a SM |
181 | ;; 1) Load the window system startup file from the lisp library and read the |
182 | ;; high-priority arguments (-q and the like). The window system startup | |
183 | ;; file should create any frames specified in the window system defaults. | |
184 | ;; | |
185 | ;; 2) If no frames have been opened, we open an initial text frame. | |
186 | ;; | |
187 | ;; 3) Once the init file is done, we apply any newly set parameters | |
188 | ;; in initial-frame-alist to the frame. | |
64c669bc | 189 | |
85557d7e | 190 | ;; These are now called explicitly at the proper times, |
fc4d4afb RS |
191 | ;; since that is easier to understand. |
192 | ;; Actually using hooks within Emacs is bad for future maintenance. --rms. | |
193 | ;; (add-hook 'before-init-hook 'frame-initialize) | |
194 | ;; (add-hook 'window-setup-hook 'frame-notice-user-settings) | |
64c669bc | 195 | |
7e573c4a | 196 | ;; If we create the initial frame, this is it. |
dc6d9681 | 197 | (defvar frame-initial-frame nil) |
64c669bc | 198 | |
3f2f8c83 RS |
199 | ;; Record the parameters used in frame-initialize to make the initial frame. |
200 | (defvar frame-initial-frame-alist) | |
201 | ||
791e09d8 RS |
202 | (defvar frame-initial-geometry-arguments nil) |
203 | ||
7e573c4a SM |
204 | ;; startup.el calls this function before loading the user's init |
205 | ;; file - if there is no frame with a minibuffer open now, create | |
206 | ;; one to display messages while loading the init file. | |
dc6d9681 | 207 | (defun frame-initialize () |
ff2a1c79 | 208 | "Create an initial frame if necessary." |
64c669bc | 209 | ;; Are we actually running under a window system at all? |
2246281f KL |
210 | (if (and initial-window-system |
211 | (not noninteractive) | |
212 | (not (eq initial-window-system 'pc))) | |
7eadab74 | 213 | (progn |
62642af9 RS |
214 | ;; Turn on special-display processing only if there's a window system. |
215 | (setq special-display-function 'special-display-popup-frame) | |
216 | ||
7eadab74 JB |
217 | ;; If there is no frame with a minibuffer besides the terminal |
218 | ;; frame, then we need to create the opening frame. Make sure | |
219 | ;; it has a minibuffer, but let initial-frame-alist omit the | |
220 | ;; minibuffer spec. | |
221 | (or (delq terminal-frame (minibuffer-frame-list)) | |
36fc9c9f | 222 | (progn |
3f2f8c83 | 223 | (setq frame-initial-frame-alist |
9688894d | 224 | (append initial-frame-alist default-frame-alist nil)) |
a8bb5882 RS |
225 | (or (assq 'horizontal-scroll-bars frame-initial-frame-alist) |
226 | (setq frame-initial-frame-alist | |
227 | (cons '(horizontal-scroll-bars . t) | |
228 | frame-initial-frame-alist))) | |
2246281f KL |
229 | (setq frame-initial-frame-alist |
230 | (cons (cons 'window-system initial-window-system) | |
231 | frame-initial-frame-alist)) | |
36fc9c9f RS |
232 | (setq default-minibuffer-frame |
233 | (setq frame-initial-frame | |
96a84970 | 234 | (make-frame frame-initial-frame-alist))) |
11281034 RS |
235 | ;; Delete any specifications for window geometry parameters |
236 | ;; so that we won't reapply them in frame-notice-user-settings. | |
237 | ;; It would be wrong to reapply them then, | |
238 | ;; because that would override explicit user resizing. | |
58bf6042 | 239 | (setq initial-frame-alist |
c2079f0a | 240 | (frame-remove-geometry-params initial-frame-alist)))) |
85557d7e | 241 | ;; At this point, we know that we have a frame open, so we |
dc6d9681 JB |
242 | ;; can delete the terminal frame. |
243 | (delete-frame terminal-frame) | |
2246281f | 244 | (setq terminal-frame nil)))) |
85557d7e | 245 | |
8f2a992b GM |
246 | (defvar frame-notice-user-settings t |
247 | "Non-nil means function `frame-notice-user-settings' wasn't run yet.") | |
248 | ||
7e573c4a SM |
249 | ;; startup.el calls this function after loading the user's init |
250 | ;; file. Now default-frame-alist and initial-frame-alist contain | |
251 | ;; information to which we must react; do what needs to be done. | |
dc6d9681 | 252 | (defun frame-notice-user-settings () |
40d34803 | 253 | "Act on user's init file settings of frame parameters. |
0e1bfc78 KL |
254 | React to settings of `initial-frame-alist', |
255 | `window-system-default-frame-alist' and `default-frame-alist' | |
256 | there (in decreasing order of priority)." | |
2ffa6186 | 257 | ;; Make menu-bar-mode and default-frame-alist consistent. |
61f2bcd7 GM |
258 | (when (boundp 'menu-bar-mode) |
259 | (let ((default (assq 'menu-bar-lines default-frame-alist))) | |
260 | (if default | |
261 | (setq menu-bar-mode (not (eq (cdr default) 0))) | |
262 | (setq default-frame-alist | |
263 | (cons (cons 'menu-bar-lines (if menu-bar-mode 1 0)) | |
264 | default-frame-alist))))) | |
f39784dd | 265 | |
33a33c06 GM |
266 | ;; Make tool-bar-mode and default-frame-alist consistent. Don't do |
267 | ;; it in batch mode since that would leave a tool-bar-lines | |
268 | ;; parameter in default-frame-alist in a dumped Emacs, which is not | |
9688894d | 269 | ;; what we want. |
33a33c06 GM |
270 | (when (and (boundp 'tool-bar-mode) |
271 | (not noninteractive)) | |
61f2bcd7 GM |
272 | (let ((default (assq 'tool-bar-lines default-frame-alist))) |
273 | (if default | |
274 | (setq tool-bar-mode (not (eq (cdr default) 0))) | |
275 | (setq default-frame-alist | |
276 | (cons (cons 'tool-bar-lines (if tool-bar-mode 1 0)) | |
277 | default-frame-alist))))) | |
2ffa6186 | 278 | |
7eadab74 JB |
279 | ;; Creating and deleting frames may shift the selected frame around, |
280 | ;; and thus the current buffer. Protect against that. We don't | |
281 | ;; want to use save-excursion here, because that may also try to set | |
282 | ;; the buffer of the selected window, which fails when the selected | |
283 | ;; window is the minibuffer. | |
0e1bfc78 KL |
284 | (let ((old-buffer (current-buffer)) |
285 | (window-system-frame-alist (cdr (assq initial-window-system | |
286 | window-system-default-frame-alist)))) | |
7eadab74 | 287 | |
8f2a992b GM |
288 | (when (and frame-notice-user-settings |
289 | (null frame-initial-frame)) | |
42002db5 EZ |
290 | ;; This case happens when we don't have a window system, and |
291 | ;; also for MS-DOS frames. | |
8f2a992b GM |
292 | (let ((parms (frame-parameters frame-initial-frame))) |
293 | ;; Don't change the frame names. | |
294 | (setq parms (delq (assq 'name parms) parms)) | |
295 | ;; Can't modify the minibuffer parameter, so don't try. | |
296 | (setq parms (delq (assq 'minibuffer parms) parms)) | |
297 | (modify-frame-parameters nil | |
2246281f | 298 | (if (null initial-window-system) |
42002db5 | 299 | (append initial-frame-alist |
0e1bfc78 | 300 | window-system-frame-alist |
42002db5 EZ |
301 | default-frame-alist |
302 | parms | |
303 | nil) | |
304 | ;; initial-frame-alist and | |
305 | ;; default-frame-alist were already | |
306 | ;; applied in pc-win.el. | |
307 | parms)) | |
2246281f | 308 | (if (null initial-window-system) ;; MS-DOS does this differently in pc-win.el |
42002db5 EZ |
309 | (let ((newparms (frame-parameters)) |
310 | (frame (selected-frame))) | |
311 | (tty-handle-reverse-video frame newparms) | |
312 | ;; If we changed the background color, we need to update | |
313 | ;; the background-mode parameter, and maybe some faces, | |
314 | ;; too. | |
315 | (when (assq 'background-color newparms) | |
316 | (unless (or (assq 'background-mode initial-frame-alist) | |
317 | (assq 'background-mode default-frame-alist)) | |
318 | (frame-set-background-mode frame)) | |
319 | (face-set-after-frame-default frame)))))) | |
8f2a992b | 320 | |
7eadab74 JB |
321 | ;; If the initial frame is still around, apply initial-frame-alist |
322 | ;; and default-frame-alist to it. | |
9688894d GM |
323 | (when (frame-live-p frame-initial-frame) |
324 | ||
325 | ;; When tool-bar has been switched off, correct the frame size | |
326 | ;; by the lines added in x-create-frame for the tool-bar and | |
327 | ;; switch `tool-bar-mode' off. | |
085ef9b3 GM |
328 | (when (display-graphic-p) |
329 | (let ((tool-bar-lines (or (assq 'tool-bar-lines initial-frame-alist) | |
0e1bfc78 | 330 | (assq 'tool-bar-lines window-system-frame-alist) |
085ef9b3 | 331 | (assq 'tool-bar-lines default-frame-alist)))) |
5c39a60f JR |
332 | (when (and tool-bar-originally-present |
333 | (or (null tool-bar-lines) | |
334 | (null (cdr tool-bar-lines)) | |
335 | (eq 0 (cdr tool-bar-lines)))) | |
085ef9b3 | 336 | (let* ((char-height (frame-char-height frame-initial-frame)) |
5c39a60f | 337 | (image-height tool-bar-images-pixel-height) |
085ef9b3 GM |
338 | (margin (cond ((and (consp tool-bar-button-margin) |
339 | (integerp (cdr tool-bar-button-margin)) | |
340 | (> tool-bar-button-margin 0)) | |
341 | (cdr tool-bar-button-margin)) | |
342 | ((and (integerp tool-bar-button-margin) | |
343 | (> tool-bar-button-margin 0)) | |
344 | tool-bar-button-margin) | |
345 | (t 0))) | |
346 | (relief (if (and (integerp tool-bar-button-relief) | |
347 | (> tool-bar-button-relief 0)) | |
348 | tool-bar-button-relief 3)) | |
f39784dd | 349 | (lines (/ (+ image-height |
085ef9b3 GM |
350 | (* 2 margin) |
351 | (* 2 relief) | |
352 | (1- char-height)) | |
353 | char-height)) | |
354 | (height (frame-parameter frame-initial-frame 'height)) | |
355 | (newparms (list (cons 'height (- height lines)))) | |
f39784dd | 356 | (initial-top (cdr (assq 'top |
085ef9b3 GM |
357 | frame-initial-geometry-arguments))) |
358 | (top (frame-parameter frame-initial-frame 'top))) | |
359 | (when (and (consp initial-top) (eq '- (car initial-top))) | |
7f18ce22 RS |
360 | (let ((adjusted-top |
361 | (cond ((and (consp top) | |
362 | (eq '+ (car top))) | |
363 | (list '+ | |
364 | (+ (cadr top) | |
365 | (* lines char-height)))) | |
366 | ((and (consp top) | |
367 | (eq '- (car top))) | |
368 | (list '- | |
369 | (- (cadr top) | |
370 | (* lines char-height)))) | |
371 | (t (+ top (* lines char-height)))))) | |
372 | (setq newparms | |
373 | (append newparms | |
374 | `((top . ,adjusted-top)) | |
375 | nil)))) | |
085ef9b3 GM |
376 | (modify-frame-parameters frame-initial-frame newparms) |
377 | (tool-bar-mode -1))))) | |
9688894d GM |
378 | |
379 | ;; The initial frame we create above always has a minibuffer. | |
380 | ;; If the user wants to remove it, or make it a minibuffer-only | |
381 | ;; frame, then we'll have to delete the current frame and make a | |
382 | ;; new one; you can't remove or add a root window to/from an | |
383 | ;; existing frame. | |
384 | ;; | |
385 | ;; NOTE: default-frame-alist was nil when we created the | |
386 | ;; existing frame. We need to explicitly include | |
387 | ;; default-frame-alist in the parameters of the screen we | |
388 | ;; create here, so that its new value, gleaned from the user's | |
389 | ;; .emacs file, will be applied to the existing screen. | |
de2f5dbe | 390 | (if (not (eq (cdr (or (assq 'minibuffer initial-frame-alist) |
0e1bfc78 | 391 | (assq 'minibuffer window-system-frame-alist) |
de2f5dbe GM |
392 | (assq 'minibuffer default-frame-alist) |
393 | '(minibuffer . t))) | |
394 | t)) | |
395 | ;; Create the new frame. | |
396 | (let (parms new) | |
397 | ;; If the frame isn't visible yet, wait till it is. | |
398 | ;; If the user has to position the window, | |
399 | ;; Emacs doesn't know its real position until | |
400 | ;; the frame is seen to be visible. | |
401 | (while (not (cdr (assq 'visibility | |
402 | (frame-parameters frame-initial-frame)))) | |
403 | (sleep-for 1)) | |
404 | (setq parms (frame-parameters frame-initial-frame)) | |
9688894d | 405 | |
f39784dd | 406 | ;; Get rid of `name' unless it was specified explicitly before. |
de2f5dbe GM |
407 | (or (assq 'name frame-initial-frame-alist) |
408 | (setq parms (delq (assq 'name parms) parms))) | |
409 | ||
410 | (setq parms (append initial-frame-alist | |
0e1bfc78 | 411 | window-system-frame-alist |
de2f5dbe GM |
412 | default-frame-alist |
413 | parms | |
414 | nil)) | |
415 | ||
416 | ;; Get rid of `reverse', because that was handled | |
417 | ;; when we first made the frame. | |
418 | (setq parms (cons '(reverse) (delq (assq 'reverse parms) parms))) | |
419 | ||
420 | (if (assq 'height frame-initial-geometry-arguments) | |
421 | (setq parms (assq-delete-all 'height parms))) | |
422 | (if (assq 'width frame-initial-geometry-arguments) | |
423 | (setq parms (assq-delete-all 'width parms))) | |
424 | (if (assq 'left frame-initial-geometry-arguments) | |
425 | (setq parms (assq-delete-all 'left parms))) | |
426 | (if (assq 'top frame-initial-geometry-arguments) | |
427 | (setq parms (assq-delete-all 'top parms))) | |
428 | (setq new | |
429 | (make-frame | |
430 | ;; Use the geometry args that created the existing | |
431 | ;; frame, rather than the parms we get for it. | |
432 | (append frame-initial-geometry-arguments | |
433 | '((user-size . t) (user-position . t)) | |
434 | parms))) | |
435 | ;; The initial frame, which we are about to delete, may be | |
436 | ;; the only frame with a minibuffer. If it is, create a | |
437 | ;; new one. | |
438 | (or (delq frame-initial-frame (minibuffer-frame-list)) | |
439 | (make-initial-minibuffer-frame nil)) | |
440 | ||
441 | ;; If the initial frame is serving as a surrogate | |
442 | ;; minibuffer frame for any frames, we need to wean them | |
443 | ;; onto a new frame. The default-minibuffer-frame | |
444 | ;; variable must be handled similarly. | |
445 | (let ((users-of-initial | |
446 | (filtered-frame-list | |
447 | (function (lambda (frame) | |
448 | (and (not (eq frame frame-initial-frame)) | |
449 | (eq (window-frame | |
450 | (minibuffer-window frame)) | |
451 | frame-initial-frame))))))) | |
452 | (if (or users-of-initial | |
453 | (eq default-minibuffer-frame frame-initial-frame)) | |
454 | ||
455 | ;; Choose an appropriate frame. Prefer frames which | |
456 | ;; are only minibuffers. | |
457 | (let* ((new-surrogate | |
458 | (car | |
459 | (or (filtered-frame-list | |
460 | (function | |
461 | (lambda (frame) | |
462 | (eq (cdr (assq 'minibuffer | |
463 | (frame-parameters frame))) | |
464 | 'only)))) | |
465 | (minibuffer-frame-list)))) | |
466 | (new-minibuffer (minibuffer-window new-surrogate))) | |
467 | ||
468 | (if (eq default-minibuffer-frame frame-initial-frame) | |
469 | (setq default-minibuffer-frame new-surrogate)) | |
470 | ||
471 | ;; Wean the frames using frame-initial-frame as | |
472 | ;; their minibuffer frame. | |
473 | (mapcar | |
474 | (function | |
475 | (lambda (frame) | |
476 | (modify-frame-parameters | |
477 | frame (list (cons 'minibuffer new-minibuffer))))) | |
478 | users-of-initial)))) | |
479 | ||
480 | ;; Redirect events enqueued at this frame to the new frame. | |
481 | ;; Is this a good idea? | |
482 | (redirect-frame-focus frame-initial-frame new) | |
483 | ||
484 | ;; Finally, get rid of the old frame. | |
485 | (delete-frame frame-initial-frame t)) | |
9688894d GM |
486 | |
487 | ;; Otherwise, we don't need all that rigamarole; just apply | |
488 | ;; the new parameters. | |
489 | (let (newparms allparms tail) | |
490 | (setq allparms (append initial-frame-alist | |
0e1bfc78 | 491 | window-system-frame-alist |
9688894d GM |
492 | default-frame-alist nil)) |
493 | (if (assq 'height frame-initial-geometry-arguments) | |
494 | (setq allparms (assq-delete-all 'height allparms))) | |
495 | (if (assq 'width frame-initial-geometry-arguments) | |
496 | (setq allparms (assq-delete-all 'width allparms))) | |
497 | (if (assq 'left frame-initial-geometry-arguments) | |
498 | (setq allparms (assq-delete-all 'left allparms))) | |
499 | (if (assq 'top frame-initial-geometry-arguments) | |
500 | (setq allparms (assq-delete-all 'top allparms))) | |
501 | (setq tail allparms) | |
502 | ;; Find just the parms that have changed since we first | |
503 | ;; made this frame. Those are the ones actually set by | |
f39784dd | 504 | ;; the init file. For those parms whose values we already knew |
9688894d GM |
505 | ;; (such as those spec'd by command line options) |
506 | ;; it is undesirable to specify the parm again | |
f39784dd | 507 | ;; once the user has seen the frame and been able to alter it |
9688894d GM |
508 | ;; manually. |
509 | (while tail | |
510 | (let (newval oldval) | |
511 | (setq oldval (assq (car (car tail)) | |
512 | frame-initial-frame-alist)) | |
513 | (setq newval (cdr (assq (car (car tail)) allparms))) | |
514 | (or (and oldval (eq (cdr oldval) newval)) | |
515 | (setq newparms | |
516 | (cons (cons (car (car tail)) newval) newparms)))) | |
517 | (setq tail (cdr tail))) | |
518 | (setq newparms (nreverse newparms)) | |
519 | (modify-frame-parameters frame-initial-frame | |
520 | newparms) | |
521 | ;; If we changed the background color, | |
522 | ;; we need to update the background-mode parameter | |
523 | ;; and maybe some faces too. | |
524 | (when (assq 'background-color newparms) | |
525 | (unless (assq 'background-mode newparms) | |
526 | (frame-set-background-mode frame-initial-frame)) | |
527 | (face-set-after-frame-default frame-initial-frame))))) | |
64c669bc | 528 | |
7eadab74 JB |
529 | ;; Restore the original buffer. |
530 | (set-buffer old-buffer) | |
531 | ||
532 | ;; Make sure the initial frame can be GC'd if it is ever deleted. | |
d202f1f2 | 533 | ;; Make sure frame-notice-user-settings does nothing if called twice. |
8f2a992b | 534 | (setq frame-notice-user-settings nil) |
d202f1f2 | 535 | (setq frame-initial-frame nil))) |
64c669bc | 536 | |
746bd265 KH |
537 | (defun make-initial-minibuffer-frame (display) |
538 | (let ((parms (append minibuffer-frame-alist '((minibuffer . only))))) | |
539 | (if display | |
540 | (make-frame-on-display display parms) | |
541 | (make-frame parms)))) | |
542 | ||
7eadab74 | 543 | ;;;; Creation of additional frames, and other frame miscellanea |
dc6d9681 | 544 | |
63019bad | 545 | (defun modify-all-frames-parameters (alist) |
d398de43 | 546 | "Modify all current and future frames' parameters according to ALIST. |
63019bad JB |
547 | This changes `default-frame-alist' and possibly `initial-frame-alist'. |
548 | See help of `modify-frame-parameters' for more information." | |
549 | (let (element) ;; temp | |
550 | (dolist (frame (frame-list)) | |
551 | (modify-frame-parameters frame alist)) | |
552 | ||
553 | (dolist (pair alist) ;; conses to add/replace | |
554 | ;; initial-frame-alist needs setting only when | |
555 | ;; frame-notice-user-settings is true | |
556 | (and frame-notice-user-settings | |
557 | (setq element (assoc (car pair) initial-frame-alist)) | |
558 | (setq initial-frame-alist (delq element initial-frame-alist))) | |
559 | (and (setq element (assoc (car pair) default-frame-alist)) | |
560 | (setq default-frame-alist (delq element default-frame-alist))))) | |
561 | (and frame-notice-user-settings | |
562 | (setq initial-frame-alist (append initial-frame-alist alist))) | |
563 | (setq default-frame-alist (append default-frame-alist alist))) | |
564 | ||
7253d8e0 | 565 | (defun get-other-frame () |
40d34803 DL |
566 | "Return some frame other than the current frame. |
567 | Create one if necessary. Note that the minibuffer frame, if separate, | |
568 | is not considered (see `next-frame')." | |
dc6d9681 | 569 | (let ((s (if (equal (next-frame (selected-frame)) (selected-frame)) |
6eb018ba | 570 | (make-frame) |
dc6d9681 | 571 | (next-frame (selected-frame))))) |
64c669bc JB |
572 | s)) |
573 | ||
dc6d9681 JB |
574 | (defun next-multiframe-window () |
575 | "Select the next window, regardless of which frame it is on." | |
64c669bc JB |
576 | (interactive) |
577 | (select-window (next-window (selected-window) | |
578 | (> (minibuffer-depth) 0) | |
bb2c34b1 | 579 | 0)) |
030f4537 | 580 | (select-frame-set-input-focus (selected-frame))) |
64c669bc | 581 | |
dc6d9681 JB |
582 | (defun previous-multiframe-window () |
583 | "Select the previous window, regardless of which frame it is on." | |
64c669bc JB |
584 | (interactive) |
585 | (select-window (previous-window (selected-window) | |
586 | (> (minibuffer-depth) 0) | |
bb2c34b1 | 587 | 0)) |
030f4537 | 588 | (select-frame-set-input-focus (selected-frame))) |
64c669bc | 589 | |
6d73e337 | 590 | (defun make-frame-on-display (display &optional parameters) |
b6660415 | 591 | "Make a frame on X display DISPLAY. |
6d73e337 RS |
592 | The optional second argument PARAMETERS specifies additional frame parameters." |
593 | (interactive "sMake frame on display: ") | |
a9ca74cd RS |
594 | (or (string-match "\\`[^:]*:[0-9]+\\(\\.[0-9]+\\)?\\'" display) |
595 | (error "Invalid display, not HOST:SERVER or HOST:SERVER.SCREEN")) | |
6afdd335 | 596 | (when (and (boundp 'x-initialized) (not x-initialized)) |
e9cda827 KL |
597 | (setq x-display-name display) |
598 | (x-initialize-window-system)) | |
2246281f | 599 | (make-frame `((window-system . x) (display . ,display) . ,parameters))) |
6d73e337 | 600 | |
f35ca2fe KL |
601 | (defun make-frame-on-tty (tty type &optional parameters) |
602 | "Make a frame on terminal device TTY. | |
603 | TTY should be the file name of the tty device to use. TYPE | |
604 | should be the terminal type string of TTY, for example \"xterm\" | |
605 | or \"vt100\". The optional third argument PARAMETERS specifies | |
606 | additional frame parameters." | |
428a555e | 607 | (interactive "fOpen frame on tty device: \nsTerminal type of %s: ") |
f35ca2fe | 608 | (unless tty |
fca177d4 KL |
609 | (error "Invalid terminal device")) |
610 | (unless type | |
611 | (error "Invalid terminal type")) | |
f35ca2fe | 612 | (make-frame `((window-system . nil) (tty . ,tty) (tty-type . ,type) . ,parameters))) |
fca177d4 | 613 | |
6238bfaf RS |
614 | (defun make-frame-command () |
615 | "Make a new frame, and select it if the terminal displays only one frame." | |
616 | (interactive) | |
c1b1350b | 617 | (if (and window-system (not (eq window-system 'pc))) |
6238bfaf RS |
618 | (make-frame) |
619 | (select-frame (make-frame)))) | |
620 | ||
45c4fdeb SM |
621 | (defvar before-make-frame-hook nil |
622 | "Functions to run before a frame is created.") | |
623 | ||
624 | (defvar after-make-frame-functions nil | |
625 | "Functions to run after a frame is created. | |
626 | The functions are run with one arg, the newly created frame.") | |
627 | ||
72bf1a8b | 628 | (defvar after-setting-font-hook nil |
81b99826 GM |
629 | "Functions to run after a frame's font has been changed.") |
630 | ||
92e443b1 | 631 | ;; Alias, kept temporarily. |
84ed1560 | 632 | (define-obsolete-function-alias 'new-frame 'make-frame "22.1") |
bc93c097 | 633 | |
45c4fdeb SM |
634 | (defun make-frame (&optional parameters) |
635 | "Return a newly created frame displaying the current buffer. | |
636 | Optional argument PARAMETERS is an alist of parameters for the new frame. | |
637 | Each element of PARAMETERS should have the form (NAME . VALUE), for example: | |
a105105a | 638 | |
45c4fdeb | 639 | (name . STRING) The frame should be named STRING. |
43a2e52c | 640 | |
45c4fdeb SM |
641 | (width . NUMBER) The frame should be NUMBER characters in width. |
642 | (height . NUMBER) The frame should be NUMBER text lines high. | |
43a2e52c | 643 | |
45c4fdeb | 644 | You cannot specify either `width' or `height', you must use neither or both. |
43a2e52c | 645 | |
45c4fdeb SM |
646 | (minibuffer . t) The frame should have a minibuffer. |
647 | (minibuffer . nil) The frame should have no minibuffer. | |
648 | (minibuffer . only) The frame should contain only a minibuffer. | |
649 | (minibuffer . WINDOW) The frame should use WINDOW as its minibuffer window. | |
43a2e52c | 650 | |
2246281f KL |
651 | (window-system . nil) The frame should be displayed on a terminal device. |
652 | (window-system . x) The frame should be displayed in an X window. | |
653 | ||
6ed8eeff | 654 | (terminal . ID) The frame should use the terminal identified by ID. |
b6660415 | 655 | |
2246281f | 656 | Before the frame is created (via `frame-creation-function-alist'), functions on the |
45c4fdeb | 657 | hook `before-make-frame-hook' are run. After the frame is created, functions |
8de9d3f6 LT |
658 | on `after-make-frame-functions' are run with one arg, the newly created frame. |
659 | ||
660 | This function itself does not make the new frame the selected frame. | |
661 | The previously selected frame remains selected. However, the | |
662 | window system may select the new frame for its own reasons, for | |
663 | instance if the frame appears under the mouse pointer and your | |
664 | setup is for focus to follow the pointer." | |
64c669bc | 665 | (interactive) |
b6660415 | 666 | (let* ((w (cond |
6ed8eeff KL |
667 | ((assq 'terminal parameters) |
668 | (let ((type (terminal-live-p (cdr (assq 'terminal parameters))))) | |
b6660415 KL |
669 | (cond |
670 | ((eq type t) nil) | |
6ed8eeff | 671 | ((eq type nil) (error "Terminal %s does not exist" (cdr (assq 'terminal parameters)))) |
b6660415 KL |
672 | (t type)))) |
673 | ((assq 'window-system parameters) | |
674 | (cdr (assq 'window-system parameters))) | |
675 | (t window-system))) | |
2246281f | 676 | (frame-creation-function (cdr (assq w frame-creation-function-alist))) |
da8e8fc1 | 677 | (oldframe (selected-frame)) |
2246281f KL |
678 | frame) |
679 | (unless frame-creation-function | |
680 | (error "Don't know how to create a frame on window system %s" w)) | |
681 | (run-hooks 'before-make-frame-hook) | |
e682e37e | 682 | (setq frame (funcall frame-creation-function (append parameters (cdr (assq w window-system-default-frame-alist))))) |
30a2fded | 683 | (normal-erase-is-backspace-setup-frame frame) |
160f0817 | 684 | ;; Inherit the 'environment and 'client parameters, if needed. |
6ed8eeff | 685 | (when (eq (frame-terminal frame) (frame-terminal oldframe)) |
160f0817 KL |
686 | (let ((env (frame-parameter oldframe 'environment)) |
687 | (client (frame-parameter oldframe 'client))) | |
da8e8fc1 KL |
688 | (if (not (framep env)) |
689 | (setq env oldframe)) | |
160f0817 KL |
690 | (if (and env (not (assq 'environment parameters))) |
691 | (set-frame-parameter frame 'environment env)) | |
692 | (if (and client (not (assq 'client parameters))) | |
693 | (set-frame-parameter frame 'client client)))) | |
45c4fdeb SM |
694 | (run-hook-with-args 'after-make-frame-functions frame) |
695 | frame)) | |
64c669bc | 696 | |
7eadab74 JB |
697 | (defun filtered-frame-list (predicate) |
698 | "Return a list of all live frames which satisfy PREDICATE." | |
047bc928 GM |
699 | (let* ((frames (frame-list)) |
700 | (list frames)) | |
7eadab74 | 701 | (while (consp frames) |
047bc928 GM |
702 | (unless (funcall predicate (car frames)) |
703 | (setcar frames nil)) | |
7eadab74 | 704 | (setq frames (cdr frames))) |
047bc928 | 705 | (delq nil list))) |
7eadab74 JB |
706 | |
707 | (defun minibuffer-frame-list () | |
708 | "Return a list of all frames with their own minibuffers." | |
709 | (filtered-frame-list | |
710 | (function (lambda (frame) | |
711 | (eq frame (window-frame (minibuffer-window frame))))))) | |
712 | ||
9684e4c9 KL |
713 | (defun frames-on-display-list (&optional terminal) |
714 | "Return a list of all frames on TERMINAL. | |
b6660415 | 715 | |
9684e4c9 KL |
716 | TERMINAL should be a terminal identifier (an integer), a frame, |
717 | or a name of an X display (a string of the form | |
718 | HOST:SERVER.SCREEN). | |
b6660415 | 719 | |
9684e4c9 KL |
720 | If TERMINAL is omitted or nil, it defaults to the selected |
721 | frame's terminal device." | |
722 | (let* ((terminal (terminal-id terminal)) | |
047bc928 | 723 | (func #'(lambda (frame) |
6ed8eeff | 724 | (eq (frame-terminal frame) terminal)))) |
9911648b EZ |
725 | (filtered-frame-list func))) |
726 | ||
f35ca2fe KL |
727 | (defun framep-on-display (&optional terminal) |
728 | "Return the type of frames on TERMINAL. | |
729 | TERMINAL may be a terminal id, a display name or a frame. If it | |
730 | is a frame, its type is returned. If TERMINAL is omitted or nil, | |
731 | it defaults to the selected frame's terminal device. All frames | |
732 | on a given display are of the same type." | |
6ed8eeff | 733 | (or (terminal-live-p terminal) |
f35ca2fe KL |
734 | (framep terminal) |
735 | (framep (car (frames-on-display-list terminal))))) | |
9911648b | 736 | |
58bf6042 JB |
737 | (defun frame-remove-geometry-params (param-list) |
738 | "Return the parameter list PARAM-LIST, but with geometry specs removed. | |
739 | This deletes all bindings in PARAM-LIST for `top', `left', `width', | |
791e09d8 | 740 | `height', `user-size' and `user-position' parameters. |
58bf6042 JB |
741 | Emacs uses this to avoid overriding explicit moves and resizings from |
742 | the user during startup." | |
743 | (setq param-list (cons nil param-list)) | |
744 | (let ((tail param-list)) | |
745 | (while (consp (cdr tail)) | |
746 | (if (and (consp (car (cdr tail))) | |
791e09d8 RS |
747 | (memq (car (car (cdr tail))) |
748 | '(height width top left user-position user-size))) | |
749 | (progn | |
750 | (setq frame-initial-geometry-arguments | |
751 | (cons (car (cdr tail)) frame-initial-geometry-arguments)) | |
752 | (setcdr tail (cdr (cdr tail)))) | |
58bf6042 | 753 | (setq tail (cdr tail))))) |
e11c3dc2 KH |
754 | (setq frame-initial-geometry-arguments |
755 | (nreverse frame-initial-geometry-arguments)) | |
58bf6042 JB |
756 | (cdr param-list)) |
757 | ||
0ac18fb0 | 758 | (defcustom focus-follows-mouse t |
6527c9b7 RS |
759 | "*Non-nil if window system changes focus when you move the mouse. |
760 | You should set this variable to tell Emacs how your window manager | |
761 | handles focus, since there is no way in general for Emacs to find out | |
762 | automatically." | |
0ac18fb0 | 763 | :type 'boolean |
cd32a7ba DN |
764 | :group 'frames |
765 | :version "20.3") | |
26ef026d | 766 | |
030f4537 GM |
767 | (defun select-frame-set-input-focus (frame) |
768 | "Select FRAME, raise it, and set input focus, if possible." | |
769 | (select-frame frame) | |
770 | (raise-frame frame) | |
771 | ;; Ensure, if possible, that frame gets input focus. | |
114a8b8c | 772 | (cond ((eq (window-system frame) 'x) |
80c39c38 | 773 | (x-focus-frame frame)) |
114a8b8c | 774 | ((eq (window-system frame) 'w32) |
80c39c38 | 775 | (w32-focus-frame frame))) |
030f4537 | 776 | (cond (focus-follows-mouse |
80c39c38 | 777 | (set-mouse-position (selected-frame) (1- (frame-width)) 0)))) |
030f4537 | 778 | |
ceab6935 | 779 | (defun other-frame (arg) |
563283b1 | 780 | "Select the ARG'th different visible frame on current display, and raise it. |
ceab6935 RM |
781 | All frames are arranged in a cyclic order. |
782 | This command selects the frame ARG steps away in that order. | |
bb578a72 RS |
783 | A negative ARG moves in the opposite order. |
784 | ||
785 | To make this command work properly, you must tell Emacs | |
786 | how the system (or the window manager) generally handles | |
787 | focus-switching between windows. If moving the mouse onto a window | |
788 | selects it (gives it focus), set `focus-follows-mouse' to t. | |
789 | Otherwise, that variable should be nil." | |
ceab6935 RM |
790 | (interactive "p") |
791 | (let ((frame (selected-frame))) | |
792 | (while (> arg 0) | |
a569dbc3 RM |
793 | (setq frame (next-frame frame)) |
794 | (while (not (eq (frame-visible-p frame) t)) | |
795 | (setq frame (next-frame frame))) | |
796 | (setq arg (1- arg))) | |
ceab6935 | 797 | (while (< arg 0) |
a569dbc3 RM |
798 | (setq frame (previous-frame frame)) |
799 | (while (not (eq (frame-visible-p frame) t)) | |
800 | (setq frame (previous-frame frame))) | |
915cfd1f | 801 | (setq arg (1+ arg))) |
030f4537 | 802 | (select-frame-set-input-focus frame))) |
845cde06 | 803 | |
3db7df06 SM |
804 | (defun iconify-or-deiconify-frame () |
805 | "Iconify the selected frame, or deiconify if it's currently an icon." | |
806 | (interactive) | |
807 | (if (eq (cdr (assq 'visibility (frame-parameters))) t) | |
808 | (iconify-frame) | |
809 | (make-frame-visible))) | |
810 | ||
0b0d3e0b KL |
811 | (defun suspend-frame () |
812 | "Do whatever is right to suspend the current frame. | |
f35ca2fe KL |
813 | Calls `suspend-emacs' if invoked from the controlling tty device, |
814 | `suspend-tty' from a secondary tty device, and | |
0b0d3e0b KL |
815 | `iconify-or-deiconify-frame' from an X frame." |
816 | (interactive) | |
817 | (let ((type (framep (selected-frame)))) | |
818 | (cond | |
819 | ((eq type 'x) (iconify-or-deiconify-frame)) | |
820 | ((eq type t) | |
6ed8eeff | 821 | (if (controlling-tty-p) |
4a933ef8 KL |
822 | (suspend-emacs) |
823 | (suspend-tty))) | |
0b0d3e0b KL |
824 | (t (suspend-emacs))))) |
825 | ||
845cde06 EZ |
826 | (defun make-frame-names-alist () |
827 | (let* ((current-frame (selected-frame)) | |
828 | (falist | |
829 | (cons | |
830 | (cons (frame-parameter current-frame 'name) current-frame) nil)) | |
831 | (frame (next-frame nil t))) | |
832 | (while (not (eq frame current-frame)) | |
833 | (progn | |
834 | (setq falist (cons (cons (frame-parameter frame 'name) frame) falist)) | |
835 | (setq frame (next-frame frame t)))) | |
836 | falist)) | |
837 | ||
838 | (defvar frame-name-history nil) | |
845cde06 | 839 | (defun select-frame-by-name (name) |
563283b1 | 840 | "Select the frame on the current terminal whose name is NAME and raise it. |
845cde06 EZ |
841 | If there is no frame by that name, signal an error." |
842 | (interactive | |
716ff1c9 RS |
843 | (let* ((frame-names-alist (make-frame-names-alist)) |
844 | (default (car (car frame-names-alist))) | |
845 | (input (completing-read | |
846 | (format "Select Frame (default %s): " default) | |
847 | frame-names-alist nil t nil 'frame-name-history))) | |
845cde06 EZ |
848 | (if (= (length input) 0) |
849 | (list default) | |
850 | (list input)))) | |
716ff1c9 RS |
851 | (let* ((frame-names-alist (make-frame-names-alist)) |
852 | (frame (cdr (assoc name frame-names-alist)))) | |
845cde06 EZ |
853 | (or frame |
854 | (error "There is no frame named `%s'" name)) | |
855 | (make-frame-visible frame) | |
856 | (raise-frame frame) | |
880a9ae1 AI |
857 | (select-frame frame) |
858 | ;; Ensure, if possible, that frame gets input focus. | |
2246281f | 859 | (cond ((eq (window-system frame) 'x) |
80c39c38 | 860 | (x-focus-frame frame)) |
2246281f | 861 | ((eq (window-system frame) 'w32) |
80c39c38 RS |
862 | (w32-focus-frame frame))) |
863 | (when focus-follows-mouse | |
864 | (set-mouse-position frame (1- (frame-width frame)) 0)))) | |
64c669bc | 865 | \f |
dc6d9681 JB |
866 | ;;;; Frame configurations |
867 | ||
868 | (defun current-frame-configuration () | |
869 | "Return a list describing the positions and states of all frames. | |
376a7584 JB |
870 | Its car is `frame-configuration'. |
871 | Each element of the cdr is a list of the form (FRAME ALIST WINDOW-CONFIG), | |
872 | where | |
873 | FRAME is a frame object, | |
874 | ALIST is an association list specifying some of FRAME's parameters, and | |
875 | WINDOW-CONFIG is a window configuration object for FRAME." | |
876 | (cons 'frame-configuration | |
877 | (mapcar (function | |
878 | (lambda (frame) | |
879 | (list frame | |
880 | (frame-parameters frame) | |
881 | (current-window-configuration frame)))) | |
882 | (frame-list)))) | |
dc6d9681 | 883 | |
68cd265f | 884 | (defun set-frame-configuration (configuration &optional nodelete) |
dc6d9681 JB |
885 | "Restore the frames to the state described by CONFIGURATION. |
886 | Each frame listed in CONFIGURATION has its position, size, window | |
68cd265f | 887 | configuration, and other parameters set as specified in CONFIGURATION. |
d398de43 LT |
888 | However, this function does not restore deleted frames. |
889 | ||
a78db71c RS |
890 | Ordinarily, this function deletes all existing frames not |
891 | listed in CONFIGURATION. But if optional second argument NODELETE | |
5da841d2 | 892 | is given and non-nil, the unwanted frames are iconified instead." |
376a7584 JB |
893 | (or (frame-configuration-p configuration) |
894 | (signal 'wrong-type-argument | |
895 | (list 'frame-configuration-p configuration))) | |
896 | (let ((config-alist (cdr configuration)) | |
897 | frames-to-delete) | |
06b1a5ef | 898 | (mapcar (function |
dc6d9681 | 899 | (lambda (frame) |
376a7584 | 900 | (let ((parameters (assq frame config-alist))) |
06b1a5ef JB |
901 | (if parameters |
902 | (progn | |
98e9d14b JB |
903 | (modify-frame-parameters |
904 | frame | |
85557d7e | 905 | ;; Since we can't set a frame's minibuffer status, |
98e9d14b JB |
906 | ;; we might as well omit the parameter altogether. |
907 | (let* ((parms (nth 1 parameters)) | |
908 | (mini (assq 'minibuffer parms))) | |
909 | (if mini (setq parms (delq mini parms))) | |
910 | parms)) | |
06b1a5ef | 911 | (set-window-configuration (nth 2 parameters))) |
dc6d9681 JB |
912 | (setq frames-to-delete (cons frame frames-to-delete)))))) |
913 | (frame-list)) | |
a78db71c | 914 | (if nodelete |
5da841d2 RS |
915 | ;; Note: making frames invisible here was tried |
916 | ;; but led to some strange behavior--each time the frame | |
917 | ;; was made visible again, the window manager asked afresh | |
918 | ;; for where to put it. | |
919 | (mapcar 'iconify-frame frames-to-delete) | |
a78db71c | 920 | (mapcar 'delete-frame frames-to-delete)))) |
64c669bc | 921 | \f |
dc6d9681 JB |
922 | ;;;; Convenience functions for accessing and interactively changing |
923 | ;;;; frame parameters. | |
64c669bc | 924 | |
151bdc83 | 925 | (defun frame-height (&optional frame) |
dc6d9681 JB |
926 | "Return number of lines available for display on FRAME. |
927 | If FRAME is omitted, describe the currently selected frame." | |
151bdc83 | 928 | (cdr (assq 'height (frame-parameters frame)))) |
dc6d9681 JB |
929 | |
930 | (defun frame-width (&optional frame) | |
931 | "Return number of columns available for display on FRAME. | |
932 | If FRAME is omitted, describe the currently selected frame." | |
151bdc83 | 933 | (cdr (assq 'width (frame-parameters frame)))) |
dc6d9681 | 934 | |
889611f0 | 935 | (defalias 'set-default-font 'set-frame-font) |
1cef6541 | 936 | (defun set-frame-font (font-name &optional keep-size) |
40d34803 | 937 | "Set the font of the selected frame to FONT-NAME. |
61298010 | 938 | When called interactively, prompt for the name of the font to use. |
1cef6541 JB |
939 | To get the frame's current default font, use `frame-parameters'. |
940 | ||
941 | The default behavior is to keep the numbers of lines and columns in | |
84ed1560 | 942 | the frame, thus may change its pixel size. If optional KEEP-SIZE is |
1cef6541 JB |
943 | non-nil (interactively, prefix argument) the current frame size (in |
944 | pixels) is kept by adjusting the numbers of the lines and columns." | |
f39784dd | 945 | (interactive |
1cef6541 JB |
946 | (let* ((completion-ignore-case t) |
947 | (font (completing-read "Font name: " | |
948 | (mapcar #'list | |
949 | ;; x-list-fonts will fail with an error | |
950 | ;; if this frame doesn't support fonts. | |
93289292 MB |
951 | (x-list-fonts "*" nil (selected-frame))) |
952 | nil nil nil nil | |
953 | (frame-parameter nil 'font)))) | |
1cef6541 JB |
954 | (list font current-prefix-arg))) |
955 | (let (fht fwd) | |
956 | (if keep-size | |
957 | (setq fht (* (frame-parameter nil 'height) (frame-char-height)) | |
958 | fwd (* (frame-parameter nil 'width) (frame-char-width)))) | |
959 | (modify-frame-parameters (selected-frame) | |
960 | (list (cons 'font font-name))) | |
961 | (if keep-size | |
962 | (modify-frame-parameters | |
963 | (selected-frame) | |
964 | (list (cons 'height (round fht (frame-char-height))) | |
965 | (cons 'width (round fwd (frame-char-width))))))) | |
72bf1a8b | 966 | (run-hooks 'after-setting-font-hook 'after-setting-font-hooks)) |
64c669bc | 967 | |
7e573c4a | 968 | (defun set-frame-parameter (frame parameter value) |
0dac35b8 KL |
969 | "Set frame parameter PARAMETER to VALUE on FRAME. |
970 | If FRAME is nil, it defaults to the selected frame. | |
971 | See `modify-frame-parameters.'" | |
7e573c4a SM |
972 | (modify-frame-parameters frame (list (cons parameter value)))) |
973 | ||
8290babd | 974 | (defun set-background-color (color-name) |
40d34803 | 975 | "Set the background color of the selected frame to COLOR-NAME. |
61298010 RS |
976 | When called interactively, prompt for the name of the color to use. |
977 | To get the frame's current background color, use `frame-parameters'." | |
63ec4f94 | 978 | (interactive (list (facemenu-read-color "Background color: "))) |
dc6d9681 | 979 | (modify-frame-parameters (selected-frame) |
528e1416 EZ |
980 | (list (cons 'background-color color-name))) |
981 | (or window-system | |
982 | (face-set-after-frame-default (selected-frame)))) | |
64c669bc | 983 | |
8290babd | 984 | (defun set-foreground-color (color-name) |
40d34803 | 985 | "Set the foreground color of the selected frame to COLOR-NAME. |
61298010 RS |
986 | When called interactively, prompt for the name of the color to use. |
987 | To get the frame's current foreground color, use `frame-parameters'." | |
63ec4f94 | 988 | (interactive (list (facemenu-read-color "Foreground color: "))) |
dc6d9681 | 989 | (modify-frame-parameters (selected-frame) |
528e1416 EZ |
990 | (list (cons 'foreground-color color-name))) |
991 | (or window-system | |
992 | (face-set-after-frame-default (selected-frame)))) | |
64c669bc JB |
993 | |
994 | (defun set-cursor-color (color-name) | |
40d34803 | 995 | "Set the text cursor color of the selected frame to COLOR-NAME. |
61298010 RS |
996 | When called interactively, prompt for the name of the color to use. |
997 | To get the frame's current cursor color, use `frame-parameters'." | |
63ec4f94 | 998 | (interactive (list (facemenu-read-color "Cursor color: "))) |
dc6d9681 | 999 | (modify-frame-parameters (selected-frame) |
7eadab74 | 1000 | (list (cons 'cursor-color color-name)))) |
64c669bc | 1001 | |
eaa974e1 | 1002 | (defun set-mouse-color (color-name) |
40d34803 | 1003 | "Set the color of the mouse pointer of the selected frame to COLOR-NAME. |
61298010 RS |
1004 | When called interactively, prompt for the name of the color to use. |
1005 | To get the frame's current mouse color, use `frame-parameters'." | |
63ec4f94 | 1006 | (interactive (list (facemenu-read-color "Mouse color: "))) |
dc6d9681 | 1007 | (modify-frame-parameters (selected-frame) |
ec6d4463 KH |
1008 | (list (cons 'mouse-color |
1009 | (or color-name | |
1010 | (cdr (assq 'mouse-color | |
1011 | (frame-parameters)))))))) | |
7eadab74 | 1012 | |
eaa974e1 | 1013 | (defun set-border-color (color-name) |
40d34803 | 1014 | "Set the color of the border of the selected frame to COLOR-NAME. |
61298010 RS |
1015 | When called interactively, prompt for the name of the color to use. |
1016 | To get the frame's current border color, use `frame-parameters'." | |
63ec4f94 | 1017 | (interactive (list (facemenu-read-color "Border color: "))) |
eaa974e1 JB |
1018 | (modify-frame-parameters (selected-frame) |
1019 | (list (cons 'border-color color-name)))) | |
1020 | ||
1021 | (defun auto-raise-mode (arg) | |
7eadab74 | 1022 | "Toggle whether or not the selected frame should auto-raise. |
79e6ae33 RS |
1023 | With arg, turn auto-raise mode on if and only if arg is positive. |
1024 | Note that this controls Emacs's own auto-raise feature. | |
1025 | Some window managers allow you to enable auto-raise for certain windows. | |
1026 | You can use that for Emacs windows if you wish, but if you do, | |
1027 | that is beyond the control of Emacs and this command has no effect on it." | |
7eadab74 JB |
1028 | (interactive "P") |
1029 | (if (null arg) | |
1030 | (setq arg | |
1031 | (if (cdr (assq 'auto-raise (frame-parameters (selected-frame)))) | |
1032 | -1 1))) | |
9626b928 GM |
1033 | (if (> arg 0) |
1034 | (raise-frame (selected-frame))) | |
dc6d9681 | 1035 | (modify-frame-parameters (selected-frame) |
7eadab74 JB |
1036 | (list (cons 'auto-raise (> arg 0))))) |
1037 | ||
eaa974e1 | 1038 | (defun auto-lower-mode (arg) |
7eadab74 | 1039 | "Toggle whether or not the selected frame should auto-lower. |
79e6ae33 RS |
1040 | With arg, turn auto-lower mode on if and only if arg is positive. |
1041 | Note that this controls Emacs's own auto-lower feature. | |
1042 | Some window managers allow you to enable auto-lower for certain windows. | |
1043 | You can use that for Emacs windows if you wish, but if you do, | |
1044 | that is beyond the control of Emacs and this command has no effect on it." | |
7eadab74 JB |
1045 | (interactive "P") |
1046 | (if (null arg) | |
1047 | (setq arg | |
1048 | (if (cdr (assq 'auto-lower (frame-parameters (selected-frame)))) | |
1049 | -1 1))) | |
dc6d9681 | 1050 | (modify-frame-parameters (selected-frame) |
7eadab74 | 1051 | (list (cons 'auto-lower (> arg 0))))) |
7777d03b EZ |
1052 | (defun set-frame-name (name) |
1053 | "Set the name of the selected frame to NAME. | |
1054 | When called interactively, prompt for the name of the frame. | |
1055 | The frame name is displayed on the modeline if the terminal displays only | |
1056 | one frame, otherwise the name is displayed on the frame's caption bar." | |
1057 | (interactive "sFrame name: ") | |
1058 | (modify-frame-parameters (selected-frame) | |
1059 | (list (cons 'name name)))) | |
56cfea72 KS |
1060 | |
1061 | (defun frame-current-scroll-bars (&optional frame) | |
1062 | "Return the current scroll-bar settings in frame FRAME. | |
1cecf04d | 1063 | Value is a cons (VERTICAL . HORIZ0NTAL) where VERTICAL specifies the |
56cfea72 | 1064 | current location of the vertical scroll-bars (left, right, or nil), |
1cecf04d | 1065 | and HORIZONTAL specifies the current location of the horizontal scroll |
56cfea72 KS |
1066 | bars (top, bottom, or nil)." |
1067 | (let ((vert (frame-parameter frame 'vertical-scroll-bars)) | |
1068 | (hor nil)) | |
1069 | (unless (memq vert '(left right nil)) | |
1070 | (setq vert default-frame-scroll-bars)) | |
1071 | (cons vert hor))) | |
64c669bc | 1072 | \f |
9911648b | 1073 | ;;;; Frame/display capabilities. |
6ed8eeff KL |
1074 | (defun selected-terminal () |
1075 | "Return the terminal that is now selected." | |
1076 | (frame-terminal (selected-frame))) | |
b6660415 | 1077 | |
9911648b EZ |
1078 | (defun display-mouse-p (&optional display) |
1079 | "Return non-nil if DISPLAY has a mouse available. | |
1080 | DISPLAY can be a display name, a frame, or nil (meaning the selected | |
1081 | frame's display)." | |
1082 | (let ((frame-type (framep-on-display display))) | |
1083 | (cond | |
1084 | ((eq frame-type 'pc) | |
1085 | (msdos-mouse-p)) | |
1086 | ((eq system-type 'windows-nt) | |
9fa5bb32 RS |
1087 | (with-no-warnings |
1088 | (> w32-num-mouse-buttons 0))) | |
9911648b EZ |
1089 | ((memq frame-type '(x mac)) |
1090 | t) ;; We assume X and Mac *always* have a pointing device | |
1091 | (t | |
7565ee93 DL |
1092 | (or (and (featurep 'xt-mouse) |
1093 | xterm-mouse-mode) | |
1094 | ;; t-mouse is distributed with the GPM package. It doesn't have | |
1095 | ;; a toggle. | |
1096 | (featurep 't-mouse)))))) | |
9911648b EZ |
1097 | |
1098 | (defun display-popup-menus-p (&optional display) | |
1099 | "Return non-nil if popup menus are supported on DISPLAY. | |
1100 | DISPLAY can be a display name, a frame, or nil (meaning the selected | |
1101 | frame's display). | |
1102 | Support for popup menus requires that the mouse be available." | |
1103 | (and | |
1104 | (let ((frame-type (framep-on-display display))) | |
1105 | (memq frame-type '(x w32 pc mac))) | |
1106 | (display-mouse-p display))) | |
1107 | ||
1108 | (defun display-graphic-p (&optional display) | |
1109 | "Return non-nil if DISPLAY is a graphic display. | |
1110 | Graphical displays are those which are capable of displaying several | |
1111 | frames and several different fonts at once. This is true for displays | |
1112 | that use a window system such as X, and false for text-only terminals. | |
1113 | DISPLAY can be a display name, a frame, or nil (meaning the selected | |
1114 | frame's display)." | |
1115 | (not (null (memq (framep-on-display display) '(x w32 mac))))) | |
1116 | ||
ddc456e4 EZ |
1117 | (defun display-images-p (&optional display) |
1118 | "Return non-nil if DISPLAY can display images. | |
1119 | ||
1120 | DISPLAY can be a display name, a frame, or nil (meaning the selected | |
1121 | frame's display)." | |
1122 | (and (display-graphic-p display) | |
1123 | (fboundp 'image-mask-p) | |
fcc6f5cc | 1124 | (fboundp 'image-size))) |
ddc456e4 | 1125 | |
6693b279 EZ |
1126 | (defalias 'display-multi-frame-p 'display-graphic-p) |
1127 | (defalias 'display-multi-font-p 'display-graphic-p) | |
1128 | ||
9911648b EZ |
1129 | (defun display-selections-p (&optional display) |
1130 | "Return non-nil if DISPLAY supports selections. | |
1131 | A selection is a way to transfer text or other data between programs | |
1132 | via special system buffers called `selection' or `cut buffer' or | |
1133 | `clipboard'. | |
1134 | DISPLAY can be a display name, a frame, or nil (meaning the selected | |
1135 | frame's display)." | |
1136 | (let ((frame-type (framep-on-display display))) | |
1137 | (cond | |
1138 | ((eq frame-type 'pc) | |
1139 | ;; MS-DOG frames support selections when Emacs runs inside | |
1140 | ;; the Windows' DOS Box. | |
9fa5bb32 RS |
1141 | (with-no-warnings |
1142 | (not (null dos-windows-version)))) | |
9911648b EZ |
1143 | ((memq frame-type '(x w32 mac)) |
1144 | t) ;; FIXME? | |
1145 | (t | |
1146 | nil)))) | |
1147 | ||
1148 | (defun display-screens (&optional display) | |
1149 | "Return the number of screens associated with DISPLAY." | |
1150 | (let ((frame-type (framep-on-display display))) | |
1151 | (cond | |
bb9404d6 | 1152 | ((memq frame-type '(x w32 mac)) |
9911648b | 1153 | (x-display-screens display)) |
bb9404d6 | 1154 | (t |
9911648b EZ |
1155 | 1)))) |
1156 | ||
1157 | (defun display-pixel-height (&optional display) | |
1158 | "Return the height of DISPLAY's screen in pixels. | |
1159 | For character terminals, each character counts as a single pixel." | |
1160 | (let ((frame-type (framep-on-display display))) | |
1161 | (cond | |
1162 | ((memq frame-type '(x w32 mac)) | |
1163 | (x-display-pixel-height display)) | |
1164 | (t | |
1165 | (frame-height (if (framep display) display (selected-frame))))))) | |
1166 | ||
1167 | (defun display-pixel-width (&optional display) | |
1168 | "Return the width of DISPLAY's screen in pixels. | |
1169 | For character terminals, each character counts as a single pixel." | |
1170 | (let ((frame-type (framep-on-display display))) | |
1171 | (cond | |
1172 | ((memq frame-type '(x w32 mac)) | |
1173 | (x-display-pixel-width display)) | |
1174 | (t | |
1175 | (frame-width (if (framep display) display (selected-frame))))))) | |
1176 | ||
1177 | (defun display-mm-height (&optional display) | |
1178 | "Return the height of DISPLAY's screen in millimeters. | |
1179 | If the information is unavailable, value is nil." | |
1180 | (and (memq (framep-on-display display) '(x w32 mac)) | |
1181 | (x-display-mm-height display))) | |
1182 | ||
1183 | (defun display-mm-width (&optional display) | |
1184 | "Return the width of DISPLAY's screen in millimeters. | |
1185 | If the information is unavailable, value is nil." | |
1186 | (and (memq (framep-on-display display) '(x w32 mac)) | |
1187 | (x-display-mm-width display))) | |
1188 | ||
1189 | (defun display-backing-store (&optional display) | |
1190 | "Return the backing store capability of DISPLAY's screen. | |
1191 | The value may be `always', `when-mapped', `not-useful', or nil if | |
1192 | the question is inapplicable to a certain kind of display." | |
1193 | (let ((frame-type (framep-on-display display))) | |
1194 | (cond | |
1195 | ((memq frame-type '(x w32 mac)) | |
1196 | (x-display-backing-store display)) | |
1197 | (t | |
1198 | 'not-useful)))) | |
1199 | ||
1200 | (defun display-save-under (&optional display) | |
1201 | "Return non-nil if DISPLAY's screen supports the SaveUnder feature." | |
1202 | (let ((frame-type (framep-on-display display))) | |
1203 | (cond | |
1204 | ((memq frame-type '(x w32 mac)) | |
1205 | (x-display-save-under display)) | |
1206 | (t | |
1207 | 'not-useful)))) | |
1208 | ||
1209 | (defun display-planes (&optional display) | |
1210 | "Return the number of planes supported by DISPLAY." | |
1211 | (let ((frame-type (framep-on-display display))) | |
1212 | (cond | |
1213 | ((memq frame-type '(x w32 mac)) | |
1214 | (x-display-planes display)) | |
1215 | ((eq frame-type 'pc) | |
1216 | 4) | |
1217 | (t | |
1218 | (truncate (log (length (tty-color-alist)) 2)))))) | |
1219 | ||
1220 | (defun display-color-cells (&optional display) | |
1221 | "Return the number of color cells supported by DISPLAY." | |
1222 | (let ((frame-type (framep-on-display display))) | |
1223 | (cond | |
1224 | ((memq frame-type '(x w32 mac)) | |
1225 | (x-display-color-cells display)) | |
1226 | ((eq frame-type 'pc) | |
1227 | 16) | |
1228 | (t | |
3224dac1 | 1229 | (tty-display-color-cells display))))) |
9911648b EZ |
1230 | |
1231 | (defun display-visual-class (&optional display) | |
1232 | "Returns the visual class of DISPLAY. | |
1233 | The value is one of the symbols `static-gray', `gray-scale', | |
1234 | `static-color', `pseudo-color', `true-color', or `direct-color'." | |
1235 | (let ((frame-type (framep-on-display display))) | |
1236 | (cond | |
1237 | ((memq frame-type '(x w32 mac)) | |
1238 | (x-display-visual-class display)) | |
1239 | ((and (memq frame-type '(pc t)) | |
1240 | (tty-display-color-p display)) | |
1241 | 'static-color) | |
1242 | (t | |
1243 | 'static-gray)))) | |
1244 | ||
1245 | \f | |
dc6d9681 | 1246 | ;;;; Aliases for backward compatibility with Emacs 18. |
84ed1560 JB |
1247 | (define-obsolete-function-alias 'screen-height 'frame-height) ;before 19.15 |
1248 | (define-obsolete-function-alias 'screen-width 'frame-width) ;before 19.15 | |
9e2b097b JB |
1249 | |
1250 | (defun set-screen-width (cols &optional pretend) | |
84ed1560 | 1251 | "Change the size of the screen to COLS columns. |
40d34803 DL |
1252 | Optional second arg non-nil means that redisplay should use COLS columns |
1253 | but that the idea of the actual width of the frame should not be changed. | |
84ed1560 | 1254 | This function is provided only for compatibility with Emacs 18." |
9e2b097b JB |
1255 | (set-frame-width (selected-frame) cols pretend)) |
1256 | ||
1257 | (defun set-screen-height (lines &optional pretend) | |
84ed1560 | 1258 | "Change the height of the screen to LINES lines. |
40d34803 DL |
1259 | Optional second arg non-nil means that redisplay should use LINES lines |
1260 | but that the idea of the actual height of the screen should not be changed. | |
84ed1560 | 1261 | This function is provided only for compatibility with Emacs 18." |
9e2b097b JB |
1262 | (set-frame-height (selected-frame) lines pretend)) |
1263 | ||
154a757e GM |
1264 | (defun delete-other-frames (&optional frame) |
1265 | "Delete all frames except FRAME. | |
a2125918 GM |
1266 | If FRAME uses another frame's minibuffer, the minibuffer frame is |
1267 | left untouched. FRAME nil or omitted means use the selected frame." | |
154a757e GM |
1268 | (interactive) |
1269 | (unless frame | |
1270 | (setq frame (selected-frame))) | |
a2125918 GM |
1271 | (let* ((mini-frame (window-frame (minibuffer-window frame))) |
1272 | (frames (delq mini-frame (delq frame (frame-list))))) | |
1273 | ;; Delete mon-minibuffer-only frames first, because `delete-frame' | |
1274 | ;; signals an error when trying to delete a mini-frame that's | |
1275 | ;; still in use by another frame. | |
1276 | (dolist (frame frames) | |
1277 | (unless (eq (frame-parameter frame 'minibuffer) 'only) | |
1278 | (delete-frame frame))) | |
1279 | ;; Delete minibuffer-only frames. | |
1280 | (dolist (frame frames) | |
1281 | (when (eq (frame-parameter frame 'minibuffer) 'only) | |
1282 | (delete-frame frame))))) | |
154a757e | 1283 | |
2598a293 SM |
1284 | (make-obsolete 'set-screen-width 'set-frame-width) ;before 19.15 |
1285 | (make-obsolete 'set-screen-height 'set-frame-height) ;before 19.15 | |
dc6d9681 | 1286 | |
da7829a3 | 1287 | ;; miscellaneous obsolescence declarations |
84ed1560 JB |
1288 | (define-obsolete-variable-alias 'delete-frame-hook |
1289 | 'delete-frame-functions "22.1") | |
da7829a3 | 1290 | |
dc6d9681 | 1291 | \f |
7e573c4a | 1292 | ;; Highlighting trailing whitespace. |
81b99826 GM |
1293 | |
1294 | (make-variable-buffer-local 'show-trailing-whitespace) | |
1295 | ||
1296 | (defcustom show-trailing-whitespace nil | |
e6c45c29 LT |
1297 | "*Non-nil means highlight trailing whitespace. |
1298 | This is done in the face `trailing-whitespace'." | |
81b99826 | 1299 | :type 'boolean |
b4aefb19 | 1300 | :group 'whitespace-faces) |
81b99826 GM |
1301 | |
1302 | ||
1303 | \f | |
7e573c4a | 1304 | ;; Scrolling |
79b14b94 GM |
1305 | |
1306 | (defgroup scrolling nil | |
1307 | "Scrolling windows." | |
1308 | :version "21.1" | |
1309 | :group 'frames) | |
1310 | ||
968ecc28 | 1311 | (defcustom auto-hscroll-mode t |
310e9a21 | 1312 | "*Allow or disallow automatic scrolling windows horizontally. |
9ea60c46 | 1313 | If non-nil, windows are automatically scrolled horizontally to make |
79b14b94 GM |
1314 | point visible." |
1315 | :version "21.1" | |
1316 | :type 'boolean | |
1317 | :group 'scrolling) | |
968ecc28 | 1318 | (defvaralias 'automatic-hscrolling 'auto-hscroll-mode) |
79b14b94 GM |
1319 | |
1320 | \f | |
7e573c4a | 1321 | ;; Blinking cursor |
81b99826 GM |
1322 | |
1323 | (defgroup cursor nil | |
ca693be8 | 1324 | "Displaying text cursors." |
40d34803 | 1325 | :version "21.1" |
81b99826 GM |
1326 | :group 'frames) |
1327 | ||
1328 | (defcustom blink-cursor-delay 0.5 | |
ca693be8 | 1329 | "*Seconds of idle time after which cursor starts to blink." |
81b99826 GM |
1330 | :type 'number |
1331 | :group 'cursor) | |
1332 | ||
1333 | (defcustom blink-cursor-interval 0.5 | |
1334 | "*Length of cursor blink interval in seconds." | |
81b99826 GM |
1335 | :type 'number |
1336 | :group 'cursor) | |
1337 | ||
1338 | (defvar blink-cursor-idle-timer nil | |
ca693be8 GM |
1339 | "Timer started after `blink-cursor-delay' seconds of Emacs idle time. |
1340 | The function `blink-cursor-start' is called when the timer fires.") | |
81b99826 GM |
1341 | |
1342 | (defvar blink-cursor-timer nil | |
ca693be8 | 1343 | "Timer started from `blink-cursor-start'. |
a795e09a LT |
1344 | This timer calls `blink-cursor-timer-function' every |
1345 | `blink-cursor-interval' seconds.") | |
1346 | ||
485464c4 | 1347 | (define-minor-mode blink-cursor-mode |
81b99826 | 1348 | "Toggle blinking cursor mode. |
be6bbb55 | 1349 | With a numeric argument, turn blinking cursor mode on iff ARG is positive. |
81b99826 | 1350 | When blinking cursor mode is enabled, the cursor of the selected |
cacf2193 RS |
1351 | window blinks. |
1352 | ||
1353 | Note that this command is effective only when Emacs | |
1354 | displays through a window system, because then Emacs does its own | |
1355 | cursor display. On a text-only terminal, this is not implemented." | |
485464c4 | 1356 | :init-value (not (or noninteractive |
947d4ae8 | 1357 | no-blinking-cursor |
485464c4 | 1358 | (eq system-type 'ms-dos) |
6dc59f76 | 1359 | (not (memq initial-window-system '(x w32 mac))))) |
947d4ae8 | 1360 | :initialize 'custom-initialize-safe-default |
ffa8d0ef | 1361 | :group 'cursor |
485464c4 SM |
1362 | :global t |
1363 | (if blink-cursor-idle-timer (cancel-timer blink-cursor-idle-timer)) | |
1364 | (if blink-cursor-timer (cancel-timer blink-cursor-timer)) | |
1365 | (setq blink-cursor-idle-timer nil | |
1366 | blink-cursor-timer nil) | |
1367 | (if blink-cursor-mode | |
1368 | (progn | |
1369 | ;; Hide the cursor. | |
1370 | ;;(internal-show-cursor nil nil) | |
1371 | (setq blink-cursor-idle-timer | |
1372 | (run-with-idle-timer blink-cursor-delay | |
1373 | blink-cursor-delay | |
1374 | 'blink-cursor-start))) | |
1375 | (internal-show-cursor nil t))) | |
1376 | ||
84ed1560 | 1377 | (define-obsolete-variable-alias 'blink-cursor 'blink-cursor-mode "22.1") |
81b99826 | 1378 | |
81b99826 | 1379 | (defun blink-cursor-start () |
ca693be8 GM |
1380 | "Timer function called from the timer `blink-cursor-idle-timer'. |
1381 | This starts the timer `blink-cursor-timer', which makes the cursor blink | |
1382 | if appropriate. It also arranges to cancel that timer when the next | |
1383 | command starts, by installing a pre-command hook." | |
81b99826 GM |
1384 | (when (null blink-cursor-timer) |
1385 | (add-hook 'pre-command-hook 'blink-cursor-end) | |
9dbf2cd6 | 1386 | (internal-show-cursor nil nil) |
81b99826 GM |
1387 | (setq blink-cursor-timer |
1388 | (run-with-timer blink-cursor-interval blink-cursor-interval | |
0a5ebe4b GM |
1389 | 'blink-cursor-timer-function)))) |
1390 | ||
1391 | (defun blink-cursor-timer-function () | |
1392 | "Timer function of timer `blink-cursor-timer'." | |
1393 | (internal-show-cursor nil (not (internal-show-cursor-p)))) | |
81b99826 GM |
1394 | |
1395 | (defun blink-cursor-end () | |
1396 | "Stop cursor blinking. | |
ca693be8 | 1397 | This is installed as a pre-command hook by `blink-cursor-start'. |
f39784dd | 1398 | When run, it cancels the timer `blink-cursor-timer' and removes |
ca693be8 | 1399 | itself as a pre-command hook." |
81b99826 | 1400 | (remove-hook 'pre-command-hook 'blink-cursor-end) |
0a5ebe4b | 1401 | (internal-show-cursor nil t) |
81b99826 GM |
1402 | (cancel-timer blink-cursor-timer) |
1403 | (setq blink-cursor-timer nil)) | |
1404 | ||
1405 | ||
1406 | \f | |
7e573c4a | 1407 | ;; Hourglass pointer |
81b99826 | 1408 | |
a6c411ff | 1409 | (defcustom display-hourglass t |
088e75cc RS |
1410 | "*Non-nil means show an hourglass pointer, when Emacs is busy. |
1411 | This feature only works when on a window system that can change | |
1412 | cursor shapes." | |
81b99826 | 1413 | :type 'boolean |
a6c411ff | 1414 | :group 'cursor) |
81b99826 | 1415 | |
a6c411ff | 1416 | (defcustom hourglass-delay 1 |
63ec4f94 | 1417 | "*Seconds to wait before displaying an hourglass pointer when Emacs is busy." |
0a86e779 | 1418 | :type 'number |
a6c411ff | 1419 | :group 'cursor) |
1d0a3ef4 | 1420 | |
5b2c5477 | 1421 | \f |
c0eb3c10 | 1422 | (defcustom cursor-in-non-selected-windows t |
84ed1560 | 1423 | "*Non-nil means show a hollow box cursor in non-selected windows. |
e053c60f | 1424 | If nil, don't show a cursor except in the selected window. |
f39784dd | 1425 | Use Custom to set this variable to get the display updated." |
63ec4f94 | 1426 | :tag "Cursor In Non-selected Windows" |
5b2c5477 GM |
1427 | :type 'boolean |
1428 | :group 'cursor | |
5b2c5477 GM |
1429 | :set #'(lambda (symbol value) |
1430 | (set-default symbol value) | |
5b2c5477 | 1431 | (force-mode-line-update t))) |
f39784dd | 1432 | |
81b99826 | 1433 | \f |
64c669bc | 1434 | ;;;; Key bindings |
64c669bc | 1435 | |
6238bfaf | 1436 | (define-key ctl-x-5-map "2" 'make-frame-command) |
154a757e | 1437 | (define-key ctl-x-5-map "1" 'delete-other-frames) |
dc6d9681 | 1438 | (define-key ctl-x-5-map "0" 'delete-frame) |
ceab6935 | 1439 | (define-key ctl-x-5-map "o" 'other-frame) |
49116ac0 | 1440 | |
dc6d9681 | 1441 | (provide 'frame) |
c88ab9ce | 1442 | |
485464c4 | 1443 | ;; arch-tag: 82979c70-b8f2-4306-b2ad-ddbd6b328b56 |
dc6d9681 | 1444 | ;;; frame.el ends here |