Commit | Line | Data |
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55535639 | 1 | ;;; frame.el --- multi-frame management independent of window systems |
c88ab9ce | 2 | |
acaf905b | 3 | ;; Copyright (C) 1993-1994, 1996-1997, 2000-2012 |
e9bffc61 | 4 | ;; Free Software Foundation, Inc. |
3a801d0c | 5 | |
fc68affa | 6 | ;; Maintainer: FSF |
fd7fa35a | 7 | ;; Keywords: internal |
bd78fa1d | 8 | ;; Package: emacs |
fc68affa | 9 | |
b578f267 EN |
10 | ;; This file is part of GNU Emacs. |
11 | ||
eb3fa2cf | 12 | ;; GNU Emacs is free software: you can redistribute it and/or modify |
b578f267 | 13 | ;; it under the terms of the GNU General Public License as published by |
eb3fa2cf GM |
14 | ;; the Free Software Foundation, either version 3 of the License, or |
15 | ;; (at your option) any later version. | |
b578f267 EN |
16 | |
17 | ;; GNU Emacs is distributed in the hope that it will be useful, | |
18 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
19 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
20 | ;; GNU General Public License for more details. | |
21 | ||
22 | ;; You should have received a copy of the GNU General Public License | |
eb3fa2cf | 23 | ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. |
64c669bc | 24 | |
55535639 PJ |
25 | ;;; Commentary: |
26 | ||
fc68affa | 27 | ;;; Code: |
f44379e7 | 28 | (eval-when-compile (require 'cl)) |
fc68affa | 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 | |
06b60517 | 34 | (lambda (_parameters) |
371fed4e | 35 | (error "Can't create multiple frames without a window system"))))) |
2246281f KL |
36 | "Alist of window-system dependent functions to call to create a new frame. |
37 | The window system startup file should add its frame creation | |
38 | function to this list, which should take an alist of parameters | |
39 | as its argument.") | |
114a8b8c | 40 | |
bf1ba39f | 41 | (defvar window-system-default-frame-alist nil |
5b95ee8a CY |
42 | "Window-system dependent default frame parameters. |
43 | The value should be an alist of elements (WINDOW-SYSTEM . ALIST), | |
44 | where WINDOW-SYSTEM is a window system symbol (see `window-system') | |
45 | and ALIST is a frame parameter alist like `default-frame-alist'. | |
46 | Then, for frames on WINDOW-SYSTEM, any parameters specified in | |
47 | ALIST supersede the corresponding parameters specified in | |
dca6c418 | 48 | `default-frame-alist'.") |
bf1ba39f | 49 | |
7e573c4a SM |
50 | ;; The initial value given here used to ask for a minibuffer. |
51 | ;; But that's not necessary, because the default is to have one. | |
52 | ;; By not specifying it here, we let an X resource specify it. | |
fac580eb | 53 | (defcustom initial-frame-alist nil |
dca6c418 MR |
54 | "Alist of parameters for the initial X window frame. |
55 | You can set this in your init file; for example, | |
56 | ||
57 | (setq initial-frame-alist | |
58 | '((top . 1) (left . 1) (width . 80) (height . 55))) | |
59 | ||
60 | Parameters specified here supersede the values given in | |
61 | `default-frame-alist'. | |
62 | ||
63 | If the value calls for a frame without a minibuffer, and you have | |
64 | not created a minibuffer frame on your own, a minibuffer frame is | |
65 | created according to `minibuffer-frame-alist'. | |
66 | ||
67 | You can specify geometry-related options for just the initial | |
68 | frame by setting this variable in your init file; however, they | |
69 | won't take effect until Emacs reads your init file, which happens | |
70 | after creating the initial frame. If you want the initial frame | |
71 | to have the proper geometry as soon as it appears, you need to | |
72 | use this three-step process: | |
de17da15 RS |
73 | * Specify X resources to give the geometry you want. |
74 | * Set `default-frame-alist' to override these options so that they | |
75 | don't affect subsequent frames. | |
76 | * Set `initial-frame-alist' in a way that matches the X resources, | |
0c966f88 RS |
77 | to override what you put in `default-frame-alist'." |
78 | :type '(repeat (cons :format "%v" | |
79 | (symbol :tag "Parameter") | |
80 | (sexp :tag "Value"))) | |
81 | :group 'frames) | |
64c669bc | 82 | |
0b9d32af | 83 | (defcustom minibuffer-frame-alist '((width . 80) (height . 2)) |
92e02072 CY |
84 | "Alist of parameters for the initial minibuffer frame. |
85 | This is the minibuffer frame created if `initial-frame-alist' | |
86 | calls for a frame without a minibuffer. The parameters specified | |
87 | here supersede those given in `default-frame-alist', for the | |
88 | initial minibuffer frame. | |
89 | ||
dca6c418 MR |
90 | You can set this in your init file; for example, |
91 | ||
dc6d9681 | 92 | (setq minibuffer-frame-alist |
dca6c418 MR |
93 | '((top . 1) (left . 1) (width . 80) (height . 2))) |
94 | ||
92e02072 CY |
95 | It is not necessary to include (minibuffer . only); that is |
96 | appended when the minibuffer frame is created." | |
0b9d32af RS |
97 | :type '(repeat (cons :format "%v" |
98 | (symbol :tag "Parameter") | |
99 | (sexp :tag "Value"))) | |
100 | :group 'frames) | |
64c669bc | 101 | |
924be53a | 102 | (defun handle-delete-frame (event) |
40d34803 | 103 | "Handle delete-frame events from the X server." |
924be53a RS |
104 | (interactive "e") |
105 | (let ((frame (posn-window (event-start event))) | |
106 | (i 0) | |
107 | (tail (frame-list))) | |
108 | (while tail | |
109 | (and (frame-visible-p (car tail)) | |
110 | (not (eq (car tail) frame)) | |
111 | (setq i (1+ i))) | |
112 | (setq tail (cdr tail))) | |
113 | (if (> i 0) | |
114 | (delete-frame frame t) | |
a9562d19 RS |
115 | ;; Gildea@x.org says it is ok to ask questions before terminating. |
116 | (save-buffers-kill-emacs)))) | |
64c669bc | 117 | \f |
dc6d9681 | 118 | ;;;; Arrangement of frames at startup |
64c669bc | 119 | |
7e573c4a SM |
120 | ;; 1) Load the window system startup file from the lisp library and read the |
121 | ;; high-priority arguments (-q and the like). The window system startup | |
122 | ;; file should create any frames specified in the window system defaults. | |
123 | ;; | |
124 | ;; 2) If no frames have been opened, we open an initial text frame. | |
125 | ;; | |
126 | ;; 3) Once the init file is done, we apply any newly set parameters | |
127 | ;; in initial-frame-alist to the frame. | |
64c669bc | 128 | |
85557d7e | 129 | ;; These are now called explicitly at the proper times, |
fc4d4afb RS |
130 | ;; since that is easier to understand. |
131 | ;; Actually using hooks within Emacs is bad for future maintenance. --rms. | |
132 | ;; (add-hook 'before-init-hook 'frame-initialize) | |
133 | ;; (add-hook 'window-setup-hook 'frame-notice-user-settings) | |
64c669bc | 134 | |
7e573c4a | 135 | ;; If we create the initial frame, this is it. |
dc6d9681 | 136 | (defvar frame-initial-frame nil) |
64c669bc | 137 | |
3f2f8c83 RS |
138 | ;; Record the parameters used in frame-initialize to make the initial frame. |
139 | (defvar frame-initial-frame-alist) | |
140 | ||
791e09d8 RS |
141 | (defvar frame-initial-geometry-arguments nil) |
142 | ||
7e573c4a SM |
143 | ;; startup.el calls this function before loading the user's init |
144 | ;; file - if there is no frame with a minibuffer open now, create | |
145 | ;; one to display messages while loading the init file. | |
dc6d9681 | 146 | (defun frame-initialize () |
ff2a1c79 | 147 | "Create an initial frame if necessary." |
64c669bc | 148 | ;; Are we actually running under a window system at all? |
2246281f KL |
149 | (if (and initial-window-system |
150 | (not noninteractive) | |
151 | (not (eq initial-window-system 'pc))) | |
7eadab74 JB |
152 | (progn |
153 | ;; If there is no frame with a minibuffer besides the terminal | |
154 | ;; frame, then we need to create the opening frame. Make sure | |
155 | ;; it has a minibuffer, but let initial-frame-alist omit the | |
156 | ;; minibuffer spec. | |
157 | (or (delq terminal-frame (minibuffer-frame-list)) | |
36fc9c9f | 158 | (progn |
3f2f8c83 | 159 | (setq frame-initial-frame-alist |
9688894d | 160 | (append initial-frame-alist default-frame-alist nil)) |
a8bb5882 RS |
161 | (or (assq 'horizontal-scroll-bars frame-initial-frame-alist) |
162 | (setq frame-initial-frame-alist | |
163 | (cons '(horizontal-scroll-bars . t) | |
164 | frame-initial-frame-alist))) | |
2246281f KL |
165 | (setq frame-initial-frame-alist |
166 | (cons (cons 'window-system initial-window-system) | |
167 | frame-initial-frame-alist)) | |
36fc9c9f RS |
168 | (setq default-minibuffer-frame |
169 | (setq frame-initial-frame | |
96a84970 | 170 | (make-frame frame-initial-frame-alist))) |
11281034 RS |
171 | ;; Delete any specifications for window geometry parameters |
172 | ;; so that we won't reapply them in frame-notice-user-settings. | |
173 | ;; It would be wrong to reapply them then, | |
174 | ;; because that would override explicit user resizing. | |
58bf6042 | 175 | (setq initial-frame-alist |
c2079f0a | 176 | (frame-remove-geometry-params initial-frame-alist)))) |
a13f8f50 KL |
177 | ;; Copy the environment of the Emacs process into the new frame. |
178 | (set-frame-parameter frame-initial-frame 'environment | |
179 | (frame-parameter terminal-frame 'environment)) | |
85557d7e | 180 | ;; At this point, we know that we have a frame open, so we |
dc6d9681 JB |
181 | ;; can delete the terminal frame. |
182 | (delete-frame terminal-frame) | |
2246281f | 183 | (setq terminal-frame nil)))) |
85557d7e | 184 | |
8f2a992b GM |
185 | (defvar frame-notice-user-settings t |
186 | "Non-nil means function `frame-notice-user-settings' wasn't run yet.") | |
187 | ||
aa360da1 GM |
188 | (declare-function tool-bar-mode "tool-bar" (&optional arg)) |
189 | ||
7e573c4a SM |
190 | ;; startup.el calls this function after loading the user's init |
191 | ;; file. Now default-frame-alist and initial-frame-alist contain | |
192 | ;; information to which we must react; do what needs to be done. | |
dc6d9681 | 193 | (defun frame-notice-user-settings () |
40d34803 | 194 | "Act on user's init file settings of frame parameters. |
0e1bfc78 KL |
195 | React to settings of `initial-frame-alist', |
196 | `window-system-default-frame-alist' and `default-frame-alist' | |
197 | there (in decreasing order of priority)." | |
7eadab74 JB |
198 | ;; Creating and deleting frames may shift the selected frame around, |
199 | ;; and thus the current buffer. Protect against that. We don't | |
200 | ;; want to use save-excursion here, because that may also try to set | |
201 | ;; the buffer of the selected window, which fails when the selected | |
202 | ;; window is the minibuffer. | |
0e1bfc78 | 203 | (let ((old-buffer (current-buffer)) |
cb01ce3f SM |
204 | (window-system-frame-alist |
205 | (cdr (assq initial-window-system | |
206 | window-system-default-frame-alist)))) | |
7eadab74 | 207 | |
8f2a992b GM |
208 | (when (and frame-notice-user-settings |
209 | (null frame-initial-frame)) | |
42002db5 EZ |
210 | ;; This case happens when we don't have a window system, and |
211 | ;; also for MS-DOS frames. | |
0216b738 | 212 | (let ((parms (frame-parameters))) |
8f2a992b GM |
213 | ;; Don't change the frame names. |
214 | (setq parms (delq (assq 'name parms) parms)) | |
215 | ;; Can't modify the minibuffer parameter, so don't try. | |
216 | (setq parms (delq (assq 'minibuffer parms) parms)) | |
0216b738 CY |
217 | (modify-frame-parameters |
218 | nil | |
219 | (if initial-window-system | |
220 | parms | |
221 | ;; initial-frame-alist and default-frame-alist were already | |
222 | ;; applied in pc-win.el. | |
223 | (append initial-frame-alist window-system-frame-alist | |
224 | default-frame-alist parms nil))) | |
2246281f | 225 | (if (null initial-window-system) ;; MS-DOS does this differently in pc-win.el |
42002db5 EZ |
226 | (let ((newparms (frame-parameters)) |
227 | (frame (selected-frame))) | |
228 | (tty-handle-reverse-video frame newparms) | |
229 | ;; If we changed the background color, we need to update | |
230 | ;; the background-mode parameter, and maybe some faces, | |
231 | ;; too. | |
232 | (when (assq 'background-color newparms) | |
233 | (unless (or (assq 'background-mode initial-frame-alist) | |
234 | (assq 'background-mode default-frame-alist)) | |
235 | (frame-set-background-mode frame)) | |
236 | (face-set-after-frame-default frame)))))) | |
8f2a992b | 237 | |
7eadab74 JB |
238 | ;; If the initial frame is still around, apply initial-frame-alist |
239 | ;; and default-frame-alist to it. | |
9688894d GM |
240 | (when (frame-live-p frame-initial-frame) |
241 | ||
242 | ;; When tool-bar has been switched off, correct the frame size | |
243 | ;; by the lines added in x-create-frame for the tool-bar and | |
244 | ;; switch `tool-bar-mode' off. | |
085ef9b3 GM |
245 | (when (display-graphic-p) |
246 | (let ((tool-bar-lines (or (assq 'tool-bar-lines initial-frame-alist) | |
0e1bfc78 | 247 | (assq 'tool-bar-lines window-system-frame-alist) |
085ef9b3 | 248 | (assq 'tool-bar-lines default-frame-alist)))) |
5c39a60f JR |
249 | (when (and tool-bar-originally-present |
250 | (or (null tool-bar-lines) | |
251 | (null (cdr tool-bar-lines)) | |
252 | (eq 0 (cdr tool-bar-lines)))) | |
085ef9b3 | 253 | (let* ((char-height (frame-char-height frame-initial-frame)) |
5c39a60f | 254 | (image-height tool-bar-images-pixel-height) |
085ef9b3 GM |
255 | (margin (cond ((and (consp tool-bar-button-margin) |
256 | (integerp (cdr tool-bar-button-margin)) | |
257 | (> tool-bar-button-margin 0)) | |
258 | (cdr tool-bar-button-margin)) | |
259 | ((and (integerp tool-bar-button-margin) | |
260 | (> tool-bar-button-margin 0)) | |
261 | tool-bar-button-margin) | |
262 | (t 0))) | |
263 | (relief (if (and (integerp tool-bar-button-relief) | |
264 | (> tool-bar-button-relief 0)) | |
265 | tool-bar-button-relief 3)) | |
f39784dd | 266 | (lines (/ (+ image-height |
085ef9b3 GM |
267 | (* 2 margin) |
268 | (* 2 relief) | |
269 | (1- char-height)) | |
270 | char-height)) | |
271 | (height (frame-parameter frame-initial-frame 'height)) | |
272 | (newparms (list (cons 'height (- height lines)))) | |
f39784dd | 273 | (initial-top (cdr (assq 'top |
085ef9b3 GM |
274 | frame-initial-geometry-arguments))) |
275 | (top (frame-parameter frame-initial-frame 'top))) | |
276 | (when (and (consp initial-top) (eq '- (car initial-top))) | |
7f18ce22 RS |
277 | (let ((adjusted-top |
278 | (cond ((and (consp top) | |
279 | (eq '+ (car top))) | |
280 | (list '+ | |
281 | (+ (cadr top) | |
282 | (* lines char-height)))) | |
283 | ((and (consp top) | |
284 | (eq '- (car top))) | |
285 | (list '- | |
286 | (- (cadr top) | |
287 | (* lines char-height)))) | |
288 | (t (+ top (* lines char-height)))))) | |
289 | (setq newparms | |
290 | (append newparms | |
291 | `((top . ,adjusted-top)) | |
292 | nil)))) | |
085ef9b3 GM |
293 | (modify-frame-parameters frame-initial-frame newparms) |
294 | (tool-bar-mode -1))))) | |
9688894d GM |
295 | |
296 | ;; The initial frame we create above always has a minibuffer. | |
297 | ;; If the user wants to remove it, or make it a minibuffer-only | |
298 | ;; frame, then we'll have to delete the current frame and make a | |
299 | ;; new one; you can't remove or add a root window to/from an | |
300 | ;; existing frame. | |
301 | ;; | |
302 | ;; NOTE: default-frame-alist was nil when we created the | |
303 | ;; existing frame. We need to explicitly include | |
304 | ;; default-frame-alist in the parameters of the screen we | |
305 | ;; create here, so that its new value, gleaned from the user's | |
306 | ;; .emacs file, will be applied to the existing screen. | |
de2f5dbe | 307 | (if (not (eq (cdr (or (assq 'minibuffer initial-frame-alist) |
0e1bfc78 | 308 | (assq 'minibuffer window-system-frame-alist) |
de2f5dbe GM |
309 | (assq 'minibuffer default-frame-alist) |
310 | '(minibuffer . t))) | |
311 | t)) | |
312 | ;; Create the new frame. | |
313 | (let (parms new) | |
314 | ;; If the frame isn't visible yet, wait till it is. | |
315 | ;; If the user has to position the window, | |
316 | ;; Emacs doesn't know its real position until | |
317 | ;; the frame is seen to be visible. | |
318 | (while (not (cdr (assq 'visibility | |
319 | (frame-parameters frame-initial-frame)))) | |
320 | (sleep-for 1)) | |
321 | (setq parms (frame-parameters frame-initial-frame)) | |
9688894d | 322 | |
f39784dd | 323 | ;; Get rid of `name' unless it was specified explicitly before. |
de2f5dbe GM |
324 | (or (assq 'name frame-initial-frame-alist) |
325 | (setq parms (delq (assq 'name parms) parms))) | |
2f5bb432 SM |
326 | ;; An explicit parent-id is a request to XEmbed the frame. |
327 | (or (assq 'parent-id frame-initial-frame-alist) | |
328 | (setq parms (delq (assq 'parent-id parms) parms))) | |
de2f5dbe GM |
329 | |
330 | (setq parms (append initial-frame-alist | |
0e1bfc78 | 331 | window-system-frame-alist |
de2f5dbe GM |
332 | default-frame-alist |
333 | parms | |
334 | nil)) | |
335 | ||
336 | ;; Get rid of `reverse', because that was handled | |
337 | ;; when we first made the frame. | |
338 | (setq parms (cons '(reverse) (delq (assq 'reverse parms) parms))) | |
339 | ||
340 | (if (assq 'height frame-initial-geometry-arguments) | |
341 | (setq parms (assq-delete-all 'height parms))) | |
342 | (if (assq 'width frame-initial-geometry-arguments) | |
343 | (setq parms (assq-delete-all 'width parms))) | |
344 | (if (assq 'left frame-initial-geometry-arguments) | |
345 | (setq parms (assq-delete-all 'left parms))) | |
346 | (if (assq 'top frame-initial-geometry-arguments) | |
347 | (setq parms (assq-delete-all 'top parms))) | |
348 | (setq new | |
349 | (make-frame | |
350 | ;; Use the geometry args that created the existing | |
351 | ;; frame, rather than the parms we get for it. | |
352 | (append frame-initial-geometry-arguments | |
353 | '((user-size . t) (user-position . t)) | |
354 | parms))) | |
355 | ;; The initial frame, which we are about to delete, may be | |
356 | ;; the only frame with a minibuffer. If it is, create a | |
357 | ;; new one. | |
358 | (or (delq frame-initial-frame (minibuffer-frame-list)) | |
359 | (make-initial-minibuffer-frame nil)) | |
360 | ||
361 | ;; If the initial frame is serving as a surrogate | |
362 | ;; minibuffer frame for any frames, we need to wean them | |
363 | ;; onto a new frame. The default-minibuffer-frame | |
364 | ;; variable must be handled similarly. | |
365 | (let ((users-of-initial | |
366 | (filtered-frame-list | |
b7de6024 SM |
367 | (lambda (frame) |
368 | (and (not (eq frame frame-initial-frame)) | |
369 | (eq (window-frame | |
370 | (minibuffer-window frame)) | |
371 | frame-initial-frame)))))) | |
372 | (if (or users-of-initial | |
de2f5dbe GM |
373 | (eq default-minibuffer-frame frame-initial-frame)) |
374 | ||
375 | ;; Choose an appropriate frame. Prefer frames which | |
376 | ;; are only minibuffers. | |
377 | (let* ((new-surrogate | |
378 | (car | |
379 | (or (filtered-frame-list | |
b7de6024 SM |
380 | (lambda (frame) |
381 | (eq (cdr (assq 'minibuffer | |
382 | (frame-parameters frame))) | |
383 | 'only))) | |
de2f5dbe GM |
384 | (minibuffer-frame-list)))) |
385 | (new-minibuffer (minibuffer-window new-surrogate))) | |
386 | ||
387 | (if (eq default-minibuffer-frame frame-initial-frame) | |
388 | (setq default-minibuffer-frame new-surrogate)) | |
389 | ||
390 | ;; Wean the frames using frame-initial-frame as | |
391 | ;; their minibuffer frame. | |
b7de6024 SM |
392 | (dolist (frame users-of-initial) |
393 | (modify-frame-parameters | |
394 | frame (list (cons 'minibuffer new-minibuffer))))))) | |
395 | ||
396 | ;; Redirect events enqueued at this frame to the new frame. | |
de2f5dbe GM |
397 | ;; Is this a good idea? |
398 | (redirect-frame-focus frame-initial-frame new) | |
399 | ||
400 | ;; Finally, get rid of the old frame. | |
401 | (delete-frame frame-initial-frame t)) | |
9688894d | 402 | |
9858f6c3 | 403 | ;; Otherwise, we don't need all that rigmarole; just apply |
9688894d GM |
404 | ;; the new parameters. |
405 | (let (newparms allparms tail) | |
406 | (setq allparms (append initial-frame-alist | |
0e1bfc78 | 407 | window-system-frame-alist |
9688894d GM |
408 | default-frame-alist nil)) |
409 | (if (assq 'height frame-initial-geometry-arguments) | |
410 | (setq allparms (assq-delete-all 'height allparms))) | |
411 | (if (assq 'width frame-initial-geometry-arguments) | |
412 | (setq allparms (assq-delete-all 'width allparms))) | |
413 | (if (assq 'left frame-initial-geometry-arguments) | |
414 | (setq allparms (assq-delete-all 'left allparms))) | |
415 | (if (assq 'top frame-initial-geometry-arguments) | |
416 | (setq allparms (assq-delete-all 'top allparms))) | |
417 | (setq tail allparms) | |
418 | ;; Find just the parms that have changed since we first | |
419 | ;; made this frame. Those are the ones actually set by | |
f39784dd | 420 | ;; the init file. For those parms whose values we already knew |
9688894d GM |
421 | ;; (such as those spec'd by command line options) |
422 | ;; it is undesirable to specify the parm again | |
f39784dd | 423 | ;; once the user has seen the frame and been able to alter it |
9688894d | 424 | ;; manually. |
0216b738 CY |
425 | (let (newval oldval) |
426 | (dolist (entry tail) | |
427 | (setq oldval (assq (car entry) frame-initial-frame-alist)) | |
428 | (setq newval (cdr (assq (car entry) allparms))) | |
9688894d GM |
429 | (or (and oldval (eq (cdr oldval) newval)) |
430 | (setq newparms | |
0216b738 | 431 | (cons (cons (car entry) newval) newparms))))) |
9688894d | 432 | (setq newparms (nreverse newparms)) |
0216b738 CY |
433 | |
434 | (let ((new-bg (assq 'background-color newparms))) | |
435 | ;; If the `background-color' parameter is changed, apply | |
436 | ;; it first, then make sure that the `background-mode' | |
437 | ;; parameter and other faces are updated, before applying | |
438 | ;; the other parameters. | |
439 | (when new-bg | |
440 | (modify-frame-parameters frame-initial-frame | |
441 | (list new-bg)) | |
442 | (unless (assq 'background-mode newparms) | |
443 | (frame-set-background-mode frame-initial-frame)) | |
444 | (face-set-after-frame-default frame-initial-frame) | |
445 | (setq newparms (delq new-bg newparms))) | |
446 | (modify-frame-parameters frame-initial-frame newparms))))) | |
64c669bc | 447 | |
7eadab74 JB |
448 | ;; Restore the original buffer. |
449 | (set-buffer old-buffer) | |
450 | ||
451 | ;; Make sure the initial frame can be GC'd if it is ever deleted. | |
d202f1f2 | 452 | ;; Make sure frame-notice-user-settings does nothing if called twice. |
8f2a992b | 453 | (setq frame-notice-user-settings nil) |
d202f1f2 | 454 | (setq frame-initial-frame nil))) |
64c669bc | 455 | |
746bd265 KH |
456 | (defun make-initial-minibuffer-frame (display) |
457 | (let ((parms (append minibuffer-frame-alist '((minibuffer . only))))) | |
458 | (if display | |
459 | (make-frame-on-display display parms) | |
460 | (make-frame parms)))) | |
461 | ||
7eadab74 | 462 | ;;;; Creation of additional frames, and other frame miscellanea |
dc6d9681 | 463 | |
63019bad | 464 | (defun modify-all-frames-parameters (alist) |
d398de43 | 465 | "Modify all current and future frames' parameters according to ALIST. |
63019bad | 466 | This changes `default-frame-alist' and possibly `initial-frame-alist'. |
095fe281 KL |
467 | Furthermore, this function removes all parameters in ALIST from |
468 | `window-system-default-frame-alist'. | |
63019bad | 469 | See help of `modify-frame-parameters' for more information." |
095fe281 KL |
470 | (dolist (frame (frame-list)) |
471 | (modify-frame-parameters frame alist)) | |
472 | ||
473 | (dolist (pair alist) ;; conses to add/replace | |
474 | ;; initial-frame-alist needs setting only when | |
475 | ;; frame-notice-user-settings is true. | |
476 | (and frame-notice-user-settings | |
477 | (setq initial-frame-alist | |
478 | (assq-delete-all (car pair) initial-frame-alist))) | |
479 | (setq default-frame-alist | |
480 | (assq-delete-all (car pair) default-frame-alist)) | |
481 | ;; Remove any similar settings from the window-system specific | |
482 | ;; parameters---they would override default-frame-alist. | |
483 | (dolist (w window-system-default-frame-alist) | |
484 | (setcdr w (assq-delete-all (car pair) (cdr w))))) | |
485 | ||
63019bad JB |
486 | (and frame-notice-user-settings |
487 | (setq initial-frame-alist (append initial-frame-alist alist))) | |
488 | (setq default-frame-alist (append default-frame-alist alist))) | |
489 | ||
7253d8e0 | 490 | (defun get-other-frame () |
40d34803 DL |
491 | "Return some frame other than the current frame. |
492 | Create one if necessary. Note that the minibuffer frame, if separate, | |
493 | is not considered (see `next-frame')." | |
dc6d9681 | 494 | (let ((s (if (equal (next-frame (selected-frame)) (selected-frame)) |
6eb018ba | 495 | (make-frame) |
dc6d9681 | 496 | (next-frame (selected-frame))))) |
64c669bc JB |
497 | s)) |
498 | ||
dc6d9681 JB |
499 | (defun next-multiframe-window () |
500 | "Select the next window, regardless of which frame it is on." | |
64c669bc JB |
501 | (interactive) |
502 | (select-window (next-window (selected-window) | |
503 | (> (minibuffer-depth) 0) | |
bb2c34b1 | 504 | 0)) |
030f4537 | 505 | (select-frame-set-input-focus (selected-frame))) |
64c669bc | 506 | |
dc6d9681 JB |
507 | (defun previous-multiframe-window () |
508 | "Select the previous window, regardless of which frame it is on." | |
64c669bc JB |
509 | (interactive) |
510 | (select-window (previous-window (selected-window) | |
511 | (> (minibuffer-depth) 0) | |
bb2c34b1 | 512 | 0)) |
030f4537 | 513 | (select-frame-set-input-focus (selected-frame))) |
64c669bc | 514 | |
bbf6ef44 | 515 | (declare-function x-initialize-window-system "term/x-win" ()) |
4c1863cd | 516 | (declare-function ns-initialize-window-system "term/ns-win" ()) |
5f9214ee | 517 | (defvar x-display-name) ; term/x-win |
bbf6ef44 | 518 | |
6d73e337 | 519 | (defun make-frame-on-display (display &optional parameters) |
c5a8bc01 CY |
520 | "Make a frame on display DISPLAY. |
521 | The optional argument PARAMETERS specifies additional frame parameters." | |
6d73e337 | 522 | (interactive "sMake frame on display: ") |
c5a8bc01 CY |
523 | (cond ((featurep 'ns) |
524 | (when (and (boundp 'ns-initialized) (not ns-initialized)) | |
525 | (setq x-display-name display) | |
526 | (ns-initialize-window-system)) | |
527 | (make-frame `((window-system . ns) | |
528 | (display . ,display) . ,parameters))) | |
529 | ((eq system-type 'windows-nt) | |
530 | ;; On Windows, ignore DISPLAY. | |
531 | (make-frame parameters)) | |
532 | (t | |
69135f12 | 533 | (unless (string-match-p "\\`[^:]*:[0-9]+\\(\\.[0-9]+\\)?\\'" display) |
c5a8bc01 CY |
534 | (error "Invalid display, not HOST:SERVER or HOST:SERVER.SCREEN")) |
535 | (when (and (boundp 'x-initialized) (not x-initialized)) | |
536 | (setq x-display-name display) | |
537 | (x-initialize-window-system)) | |
538 | (make-frame `((window-system . x) | |
539 | (display . ,display) . ,parameters))))) | |
6d73e337 | 540 | |
aa360da1 GM |
541 | (declare-function x-close-connection "xfns.c" (terminal)) |
542 | ||
b7de6024 SM |
543 | (defun close-display-connection (display) |
544 | "Close the connection to a display, deleting all its associated frames. | |
545 | For DISPLAY, specify either a frame or a display name (a string). | |
546 | If DISPLAY is nil, that stands for the selected frame's display." | |
547 | (interactive | |
548 | (list | |
549 | (let* ((default (frame-parameter nil 'display)) | |
550 | (display (completing-read | |
551 | (format "Close display (default %s): " default) | |
552 | (delete-dups | |
553 | (mapcar (lambda (frame) | |
554 | (frame-parameter frame 'display)) | |
555 | (frame-list))) | |
556 | nil t nil nil | |
557 | default))) | |
558 | (if (zerop (length display)) default display)))) | |
559 | (let ((frames (delq nil | |
560 | (mapcar (lambda (frame) | |
561 | (if (equal display | |
562 | (frame-parameter frame 'display)) | |
563 | frame)) | |
564 | (frame-list))))) | |
565 | (if (and (consp frames) | |
566 | (not (y-or-n-p (if (cdr frames) | |
567 | (format "Delete %s frames? " (length frames)) | |
568 | (format "Delete %s ? " (car frames)))))) | |
569 | (error "Abort!") | |
570 | (mapc 'delete-frame frames) | |
571 | (x-close-connection display)))) | |
572 | ||
6238bfaf | 573 | (defun make-frame-command () |
e9e6aee8 CY |
574 | "Make a new frame, on the same terminal as the selected frame. |
575 | If the terminal is a text-only terminal, this also selects the | |
576 | new frame." | |
6238bfaf | 577 | (interactive) |
e9e6aee8 | 578 | (if (display-graphic-p) |
6238bfaf RS |
579 | (make-frame) |
580 | (select-frame (make-frame)))) | |
581 | ||
45c4fdeb SM |
582 | (defvar before-make-frame-hook nil |
583 | "Functions to run before a frame is created.") | |
584 | ||
585 | (defvar after-make-frame-functions nil | |
586 | "Functions to run after a frame is created. | |
587 | The functions are run with one arg, the newly created frame.") | |
588 | ||
72bf1a8b | 589 | (defvar after-setting-font-hook nil |
81b99826 GM |
590 | "Functions to run after a frame's font has been changed.") |
591 | ||
92e443b1 | 592 | ;; Alias, kept temporarily. |
84ed1560 | 593 | (define-obsolete-function-alias 'new-frame 'make-frame "22.1") |
bc93c097 | 594 | |
9e483377 | 595 | (defvar frame-inherited-parameters '() |
ab6198b2 SM |
596 | ;; FIXME: Shouldn't we add `font' here as well? |
597 | "Parameters `make-frame' copies from the `selected-frame' to the new frame.") | |
598 | ||
45c4fdeb SM |
599 | (defun make-frame (&optional parameters) |
600 | "Return a newly created frame displaying the current buffer. | |
c1ef4455 CY |
601 | Optional argument PARAMETERS is an alist of frame parameters for |
602 | the new frame. Each element of PARAMETERS should have the | |
603 | form (NAME . VALUE), for example: | |
a105105a | 604 | |
45c4fdeb | 605 | (name . STRING) The frame should be named STRING. |
43a2e52c | 606 | |
45c4fdeb SM |
607 | (width . NUMBER) The frame should be NUMBER characters in width. |
608 | (height . NUMBER) The frame should be NUMBER text lines high. | |
43a2e52c | 609 | |
c1ef4455 CY |
610 | You cannot specify either `width' or `height', you must specify |
611 | neither or both. | |
43a2e52c | 612 | |
45c4fdeb SM |
613 | (minibuffer . t) The frame should have a minibuffer. |
614 | (minibuffer . nil) The frame should have no minibuffer. | |
615 | (minibuffer . only) The frame should contain only a minibuffer. | |
616 | (minibuffer . WINDOW) The frame should use WINDOW as its minibuffer window. | |
43a2e52c | 617 | |
2246281f KL |
618 | (window-system . nil) The frame should be displayed on a terminal device. |
619 | (window-system . x) The frame should be displayed in an X window. | |
620 | ||
d51f6378 | 621 | (terminal . TERMINAL) The frame should use the terminal object TERMINAL. |
b6660415 | 622 | |
c1ef4455 CY |
623 | In addition, any parameter specified in `default-frame-alist', |
624 | but not present in PARAMETERS, is applied. | |
8de9d3f6 | 625 | |
c1ef4455 CY |
626 | Before creating the frame (via `frame-creation-function-alist'), |
627 | this function runs the hook `before-make-frame-hook'. After | |
628 | creating the frame, it runs the hook `after-make-frame-functions' | |
629 | with one arg, the newly created frame. | |
630 | ||
631 | On graphical displays, this function does not itself make the new | |
632 | frame the selected frame. However, the window system may select | |
633 | the new frame according to its own rules." | |
64c669bc | 634 | (interactive) |
b6660415 | 635 | (let* ((w (cond |
6ed8eeff KL |
636 | ((assq 'terminal parameters) |
637 | (let ((type (terminal-live-p (cdr (assq 'terminal parameters))))) | |
b6660415 KL |
638 | (cond |
639 | ((eq type t) nil) | |
cb01ce3f SM |
640 | ((eq type nil) (error "Terminal %s does not exist" |
641 | (cdr (assq 'terminal parameters)))) | |
b6660415 KL |
642 | (t type)))) |
643 | ((assq 'window-system parameters) | |
644 | (cdr (assq 'window-system parameters))) | |
645 | (t window-system))) | |
2246281f | 646 | (frame-creation-function (cdr (assq w frame-creation-function-alist))) |
da8e8fc1 | 647 | (oldframe (selected-frame)) |
c1ef4455 | 648 | (params parameters) |
2246281f KL |
649 | frame) |
650 | (unless frame-creation-function | |
651 | (error "Don't know how to create a frame on window system %s" w)) | |
c1ef4455 CY |
652 | ;; Add parameters from `window-system-default-frame-alist'. |
653 | (dolist (p (cdr (assq w window-system-default-frame-alist))) | |
21bd02a6 | 654 | (unless (assq (car p) params) |
c1ef4455 CY |
655 | (push p params))) |
656 | ;; Add parameters from `default-frame-alist'. | |
657 | (dolist (p default-frame-alist) | |
21bd02a6 | 658 | (unless (assq (car p) params) |
c1ef4455 CY |
659 | (push p params))) |
660 | ;; Now make the frame. | |
2246281f | 661 | (run-hooks 'before-make-frame-hook) |
c1ef4455 | 662 | (setq frame (funcall frame-creation-function params)) |
30a2fded | 663 | (normal-erase-is-backspace-setup-frame frame) |
ab6198b2 SM |
664 | ;; Inherit the original frame's parameters. |
665 | (dolist (param frame-inherited-parameters) | |
666 | (unless (assq param parameters) ;Overridden by explicit parameters. | |
667 | (let ((val (frame-parameter oldframe param))) | |
668 | (when val (set-frame-parameter frame param val))))) | |
45c4fdeb SM |
669 | (run-hook-with-args 'after-make-frame-functions frame) |
670 | frame)) | |
64c669bc | 671 | |
7eadab74 JB |
672 | (defun filtered-frame-list (predicate) |
673 | "Return a list of all live frames which satisfy PREDICATE." | |
047bc928 GM |
674 | (let* ((frames (frame-list)) |
675 | (list frames)) | |
7eadab74 | 676 | (while (consp frames) |
047bc928 GM |
677 | (unless (funcall predicate (car frames)) |
678 | (setcar frames nil)) | |
7eadab74 | 679 | (setq frames (cdr frames))) |
047bc928 | 680 | (delq nil list))) |
7eadab74 JB |
681 | |
682 | (defun minibuffer-frame-list () | |
683 | "Return a list of all frames with their own minibuffers." | |
684 | (filtered-frame-list | |
b7de6024 SM |
685 | (lambda (frame) |
686 | (eq frame (window-frame (minibuffer-window frame)))))) | |
7eadab74 | 687 | |
371fed4e SM |
688 | ;; Used to be called `terminal-id' in termdev.el. |
689 | (defun get-device-terminal (device) | |
690 | "Return the terminal corresponding to DEVICE. | |
691 | DEVICE can be a terminal, a frame, nil (meaning the selected frame's terminal), | |
692 | the name of an X display device (HOST.SERVER.SCREEN) or a tty device file." | |
693 | (cond | |
694 | ((or (null device) (framep device)) | |
695 | (frame-terminal device)) | |
696 | ((stringp device) | |
697 | (let ((f (car (filtered-frame-list | |
698 | (lambda (frame) | |
699 | (or (equal (frame-parameter frame 'display) device) | |
700 | (equal (frame-parameter frame 'tty) device))))))) | |
701 | (or f (error "Display %s does not exist" device)) | |
702 | (frame-terminal f))) | |
703 | ((terminal-live-p device) device) | |
704 | (t | |
705 | (error "Invalid argument %s in `get-device-terminal'" device)))) | |
706 | ||
707 | (defun frames-on-display-list (&optional device) | |
708 | "Return a list of all frames on DEVICE. | |
709 | ||
710 | DEVICE should be a terminal, a frame, | |
711 | or a name of an X display or tty (a string of the form | |
9684e4c9 | 712 | HOST:SERVER.SCREEN). |
b6660415 | 713 | |
371fed4e | 714 | If DEVICE is omitted or nil, it defaults to the selected |
9684e4c9 | 715 | frame's terminal device." |
371fed4e | 716 | (let* ((terminal (get-device-terminal device)) |
047bc928 | 717 | (func #'(lambda (frame) |
6ed8eeff | 718 | (eq (frame-terminal frame) terminal)))) |
9911648b EZ |
719 | (filtered-frame-list func))) |
720 | ||
f35ca2fe KL |
721 | (defun framep-on-display (&optional terminal) |
722 | "Return the type of frames on TERMINAL. | |
723 | TERMINAL may be a terminal id, a display name or a frame. If it | |
724 | is a frame, its type is returned. If TERMINAL is omitted or nil, | |
725 | it defaults to the selected frame's terminal device. All frames | |
726 | on a given display are of the same type." | |
6ed8eeff | 727 | (or (terminal-live-p terminal) |
f35ca2fe KL |
728 | (framep terminal) |
729 | (framep (car (frames-on-display-list terminal))))) | |
9911648b | 730 | |
58bf6042 JB |
731 | (defun frame-remove-geometry-params (param-list) |
732 | "Return the parameter list PARAM-LIST, but with geometry specs removed. | |
733 | This deletes all bindings in PARAM-LIST for `top', `left', `width', | |
791e09d8 | 734 | `height', `user-size' and `user-position' parameters. |
58bf6042 JB |
735 | Emacs uses this to avoid overriding explicit moves and resizings from |
736 | the user during startup." | |
737 | (setq param-list (cons nil param-list)) | |
738 | (let ((tail param-list)) | |
739 | (while (consp (cdr tail)) | |
740 | (if (and (consp (car (cdr tail))) | |
791e09d8 RS |
741 | (memq (car (car (cdr tail))) |
742 | '(height width top left user-position user-size))) | |
743 | (progn | |
744 | (setq frame-initial-geometry-arguments | |
745 | (cons (car (cdr tail)) frame-initial-geometry-arguments)) | |
746 | (setcdr tail (cdr (cdr tail)))) | |
58bf6042 | 747 | (setq tail (cdr tail))))) |
e11c3dc2 KH |
748 | (setq frame-initial-geometry-arguments |
749 | (nreverse frame-initial-geometry-arguments)) | |
58bf6042 JB |
750 | (cdr param-list)) |
751 | ||
aa360da1 GM |
752 | (declare-function x-focus-frame "xfns.c" (frame)) |
753 | ||
be39b8cc | 754 | (defun select-frame-set-input-focus (frame &optional norecord) |
bbca16d8 | 755 | "Select FRAME, raise it, and set input focus, if possible. |
e343066f | 756 | If `mouse-autoselect-window' is non-nil, also move mouse pointer |
bbca16d8 | 757 | to FRAME's selected window. Otherwise, if `focus-follows-mouse' |
be39b8cc MR |
758 | is non-nil, move mouse cursor to FRAME. |
759 | ||
760 | Optional argument NORECORD means to neither change the order of | |
761 | recently selected windows nor the buffer list." | |
762 | (select-frame frame norecord) | |
b0c7121c | 763 | (raise-frame frame) |
bbca16d8 | 764 | ;; Ensure, if possible, that FRAME gets input focus. |
b0c7121c MR |
765 | (when (memq (window-system frame) '(x w32 ns)) |
766 | (x-focus-frame frame)) | |
bbca16d8 MR |
767 | ;; Move mouse cursor if necessary. |
768 | (cond | |
769 | (mouse-autoselect-window | |
770 | (let ((edges (window-inside-edges (frame-selected-window frame)))) | |
771 | ;; Move mouse cursor into FRAME's selected window to avoid that | |
772 | ;; Emacs mouse-autoselects another window. | |
773 | (set-mouse-position frame (nth 2 edges) (nth 1 edges)))) | |
774 | (focus-follows-mouse | |
775 | ;; Move mouse cursor into FRAME to avoid that another frame gets | |
776 | ;; selected by the window manager. | |
777 | (set-mouse-position frame (1- (frame-width frame)) 0)))) | |
030f4537 | 778 | |
ceab6935 | 779 | (defun other-frame (arg) |
c2c93894 | 780 | "Select the ARGth 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 | |
edfda783 | 819 | ((memq type '(x ns w32)) (iconify-or-deiconify-frame)) |
0b0d3e0b | 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 | 826 | (defun make-frame-names-alist () |
e2c3f530 | 827 | ;; Only consider the frames on the same display. |
845cde06 EZ |
828 | (let* ((current-frame (selected-frame)) |
829 | (falist | |
830 | (cons | |
831 | (cons (frame-parameter current-frame 'name) current-frame) nil)) | |
e2c3f530 | 832 | (frame (next-frame nil 0))) |
845cde06 EZ |
833 | (while (not (eq frame current-frame)) |
834 | (progn | |
e2c3f530 SM |
835 | (push (cons (frame-parameter frame 'name) frame) falist) |
836 | (setq frame (next-frame frame 0)))) | |
845cde06 EZ |
837 | falist)) |
838 | ||
839 | (defvar frame-name-history nil) | |
845cde06 | 840 | (defun select-frame-by-name (name) |
563283b1 | 841 | "Select the frame on the current terminal whose name is NAME and raise it. |
845cde06 EZ |
842 | If there is no frame by that name, signal an error." |
843 | (interactive | |
716ff1c9 RS |
844 | (let* ((frame-names-alist (make-frame-names-alist)) |
845 | (default (car (car frame-names-alist))) | |
846 | (input (completing-read | |
847 | (format "Select Frame (default %s): " default) | |
848 | frame-names-alist nil t nil 'frame-name-history))) | |
845cde06 EZ |
849 | (if (= (length input) 0) |
850 | (list default) | |
851 | (list input)))) | |
716ff1c9 RS |
852 | (let* ((frame-names-alist (make-frame-names-alist)) |
853 | (frame (cdr (assoc name frame-names-alist)))) | |
bbca16d8 MR |
854 | (if frame |
855 | (select-frame-set-input-focus frame) | |
856 | (error "There is no frame named `%s'" name)))) | |
1485f4c0 CY |
857 | |
858 | \f | |
859 | ;;;; Background mode. | |
860 | ||
861 | (defcustom frame-background-mode nil | |
862 | "The brightness of the background. | |
863 | Set this to the symbol `dark' if your background color is dark, | |
864 | `light' if your background is light, or nil (automatic by default) | |
865 | if you want Emacs to examine the brightness for you. Don't set this | |
866 | variable with `setq'; this won't have the expected effect." | |
867 | :group 'faces | |
868 | :set #'(lambda (var value) | |
869 | (set-default var value) | |
870 | (mapc 'frame-set-background-mode (frame-list))) | |
871 | :initialize 'custom-initialize-changed | |
872 | :type '(choice (const dark) | |
873 | (const light) | |
874 | (const :tag "automatic" nil))) | |
875 | ||
876 | (declare-function x-get-resource "frame.c" | |
877 | (attribute class &optional component subclass)) | |
878 | ||
879 | (defvar inhibit-frame-set-background-mode nil) | |
880 | ||
881 | (defun frame-set-background-mode (frame &optional keep-face-specs) | |
882 | "Set up display-dependent faces on FRAME. | |
883 | Display-dependent faces are those which have different definitions | |
884 | according to the `background-mode' and `display-type' frame parameters. | |
885 | ||
886 | If optional arg KEEP-FACE-SPECS is non-nil, don't recalculate | |
887 | face specs for the new background mode." | |
888 | (unless inhibit-frame-set-background-mode | |
889 | (let* ((frame-default-bg-mode (frame-terminal-default-bg-mode frame)) | |
890 | (bg-color (frame-parameter frame 'background-color)) | |
891 | (tty-type (tty-type frame)) | |
892 | (default-bg-mode | |
893 | (if (or (window-system frame) | |
894 | (and tty-type | |
895 | (string-match "^\\(xterm\\|\\rxvt\\|dtterm\\|eterm\\)" | |
896 | tty-type))) | |
897 | 'light | |
898 | 'dark)) | |
899 | (non-default-bg-mode (if (eq default-bg-mode 'light) 'dark 'light)) | |
900 | (bg-mode | |
901 | (cond (frame-default-bg-mode) | |
902 | ((equal bg-color "unspecified-fg") ; inverted colors | |
903 | non-default-bg-mode) | |
904 | ((not (color-values bg-color frame)) | |
905 | default-bg-mode) | |
906 | ((>= (apply '+ (color-values bg-color frame)) | |
907 | ;; Just looking at the screen, colors whose | |
908 | ;; values add up to .6 of the white total | |
909 | ;; still look dark to me. | |
910 | (* (apply '+ (color-values "white" frame)) .6)) | |
911 | 'light) | |
912 | (t 'dark))) | |
913 | (display-type | |
914 | (cond ((null (window-system frame)) | |
915 | (if (tty-display-color-p frame) 'color 'mono)) | |
916 | ((display-color-p frame) | |
917 | 'color) | |
918 | ((x-display-grayscale-p frame) | |
919 | 'grayscale) | |
920 | (t 'mono))) | |
921 | (old-bg-mode | |
922 | (frame-parameter frame 'background-mode)) | |
923 | (old-display-type | |
924 | (frame-parameter frame 'display-type))) | |
925 | ||
926 | (unless (and (eq bg-mode old-bg-mode) (eq display-type old-display-type)) | |
927 | (let ((locally-modified-faces nil) | |
928 | ;; Prevent face-spec-recalc from calling this function | |
929 | ;; again, resulting in a loop (bug#911). | |
930 | (inhibit-frame-set-background-mode t) | |
931 | (params (list (cons 'background-mode bg-mode) | |
932 | (cons 'display-type display-type)))) | |
933 | (if keep-face-specs | |
934 | (modify-frame-parameters frame params) | |
935 | ;; If we are recomputing face specs, first collect a list | |
936 | ;; of faces that don't match their face-specs. These are | |
937 | ;; the faces modified on FRAME, and we avoid changing them | |
938 | ;; below. Use a negative list to avoid consing (we assume | |
939 | ;; most faces are unmodified). | |
940 | (dolist (face (face-list)) | |
941 | (and (not (get face 'face-override-spec)) | |
942 | (not (face-spec-match-p face | |
943 | (face-user-default-spec face) | |
944 | (selected-frame))) | |
945 | (push face locally-modified-faces))) | |
946 | ;; Now change to the new frame parameters | |
947 | (modify-frame-parameters frame params) | |
948 | ;; For all unmodified named faces, choose face specs | |
949 | ;; matching the new frame parameters. | |
950 | (dolist (face (face-list)) | |
951 | (unless (memq face locally-modified-faces) | |
952 | (face-spec-recalc face frame))))))))) | |
953 | ||
954 | (defun frame-terminal-default-bg-mode (frame) | |
955 | "Return the default background mode of FRAME. | |
956 | This checks the `frame-background-mode' variable, the X resource | |
957 | named \"backgroundMode\" (if FRAME is an X frame), and finally | |
958 | the `background-mode' terminal parameter." | |
959 | (or frame-background-mode | |
960 | (let ((bg-resource | |
961 | (and (window-system frame) | |
962 | (x-get-resource "backgroundMode" "BackgroundMode")))) | |
963 | (if bg-resource | |
964 | (intern (downcase bg-resource)))) | |
965 | (terminal-parameter frame 'background-mode))) | |
966 | ||
64c669bc | 967 | \f |
dc6d9681 JB |
968 | ;;;; Frame configurations |
969 | ||
970 | (defun current-frame-configuration () | |
971 | "Return a list describing the positions and states of all frames. | |
376a7584 JB |
972 | Its car is `frame-configuration'. |
973 | Each element of the cdr is a list of the form (FRAME ALIST WINDOW-CONFIG), | |
974 | where | |
975 | FRAME is a frame object, | |
976 | ALIST is an association list specifying some of FRAME's parameters, and | |
977 | WINDOW-CONFIG is a window configuration object for FRAME." | |
978 | (cons 'frame-configuration | |
b7de6024 SM |
979 | (mapcar (lambda (frame) |
980 | (list frame | |
981 | (frame-parameters frame) | |
982 | (current-window-configuration frame))) | |
376a7584 | 983 | (frame-list)))) |
dc6d9681 | 984 | |
68cd265f | 985 | (defun set-frame-configuration (configuration &optional nodelete) |
dc6d9681 JB |
986 | "Restore the frames to the state described by CONFIGURATION. |
987 | Each frame listed in CONFIGURATION has its position, size, window | |
68cd265f | 988 | configuration, and other parameters set as specified in CONFIGURATION. |
d398de43 LT |
989 | However, this function does not restore deleted frames. |
990 | ||
a78db71c RS |
991 | Ordinarily, this function deletes all existing frames not |
992 | listed in CONFIGURATION. But if optional second argument NODELETE | |
5da841d2 | 993 | is given and non-nil, the unwanted frames are iconified instead." |
376a7584 JB |
994 | (or (frame-configuration-p configuration) |
995 | (signal 'wrong-type-argument | |
996 | (list 'frame-configuration-p configuration))) | |
997 | (let ((config-alist (cdr configuration)) | |
998 | frames-to-delete) | |
b7de6024 SM |
999 | (dolist (frame (frame-list)) |
1000 | (let ((parameters (assq frame config-alist))) | |
1001 | (if parameters | |
1002 | (progn | |
1003 | (modify-frame-parameters | |
1004 | frame | |
1005 | ;; Since we can't set a frame's minibuffer status, | |
1006 | ;; we might as well omit the parameter altogether. | |
1007 | (let* ((parms (nth 1 parameters)) | |
b2529d56 MB |
1008 | (mini (assq 'minibuffer parms)) |
1009 | (name (assq 'name parms)) | |
1010 | (explicit-name (cdr (assq 'explicit-name parms)))) | |
1011 | (when mini (setq parms (delq mini parms))) | |
1012 | ;; Leave name in iff it was set explicitly. | |
1013 | ;; This should fix the behavior reported in | |
1014 | ;; http://lists.gnu.org/archive/html/emacs-devel/2007-08/msg01632.html | |
1015 | (when (and name (not explicit-name)) | |
1016 | (setq parms (delq name parms))) | |
b7de6024 SM |
1017 | parms)) |
1018 | (set-window-configuration (nth 2 parameters))) | |
1019 | (setq frames-to-delete (cons frame frames-to-delete))))) | |
1020 | (mapc (if nodelete | |
1021 | ;; Note: making frames invisible here was tried | |
1022 | ;; but led to some strange behavior--each time the frame | |
1023 | ;; was made visible again, the window manager asked afresh | |
1024 | ;; for where to put it. | |
1025 | 'iconify-frame | |
1026 | 'delete-frame) | |
1027 | frames-to-delete))) | |
64c669bc | 1028 | \f |
dc6d9681 JB |
1029 | ;;;; Convenience functions for accessing and interactively changing |
1030 | ;;;; frame parameters. | |
64c669bc | 1031 | |
151bdc83 | 1032 | (defun frame-height (&optional frame) |
dc6d9681 | 1033 | "Return number of lines available for display on FRAME. |
4619ff5e GM |
1034 | If FRAME is omitted, describe the currently selected frame. |
1035 | Exactly what is included in the return value depends on the | |
1036 | window-system and toolkit in use - see `frame-pixel-height' for | |
1037 | more details. The lines are in units of the default font height. | |
1038 | ||
1039 | The result is roughly related to the frame pixel height via | |
1040 | height in pixels = height in lines * `frame-char-height'. | |
1041 | However, this is only approximate, and is complicated e.g. by the | |
1042 | fact that individual window lines and menu bar lines can have | |
1043 | differing font heights." | |
151bdc83 | 1044 | (cdr (assq 'height (frame-parameters frame)))) |
dc6d9681 JB |
1045 | |
1046 | (defun frame-width (&optional frame) | |
1047 | "Return number of columns available for display on FRAME. | |
1048 | If FRAME is omitted, describe the currently selected frame." | |
151bdc83 | 1049 | (cdr (assq 'width (frame-parameters frame)))) |
dc6d9681 | 1050 | |
aa360da1 GM |
1051 | (declare-function x-list-fonts "xfaces.c" |
1052 | (pattern &optional face frame maximum width)) | |
1053 | ||
52ef9375 | 1054 | (define-obsolete-function-alias 'set-default-font 'set-frame-font "23.1") |
fce3fdeb | 1055 | |
9f562668 | 1056 | (defun set-frame-font (font-name &optional keep-size frames) |
fce3fdeb CY |
1057 | "Set the default font to FONT-NAME. |
1058 | When called interactively, prompt for the name of a font, and use | |
1059 | that font on the selected frame. | |
1060 | ||
1061 | If KEEP-SIZE is nil, keep the number of frame lines and columns | |
1062 | fixed. If KEEP-SIZE is non-nil (or with a prefix argument), try | |
1063 | to keep the current frame size fixed (in pixels) by adjusting the | |
1064 | number of lines and columns. | |
1065 | ||
9f562668 CY |
1066 | If FRAMES is nil, apply the font to the selected frame only. |
1067 | If FRAMES is non-nil, it should be a list of frames to act upon, | |
1068 | or t meaning all graphical frames. Also, if FRAME is non-nil, | |
1069 | alter the user's Customization settings as though the | |
fce3fdeb CY |
1070 | font-related attributes of the `default' face had been \"set in |
1071 | this session\", so that the font is applied to future frames." | |
f39784dd | 1072 | (interactive |
1cef6541 JB |
1073 | (let* ((completion-ignore-case t) |
1074 | (font (completing-read "Font name: " | |
1cef6541 JB |
1075 | ;; x-list-fonts will fail with an error |
1076 | ;; if this frame doesn't support fonts. | |
b7de6024 SM |
1077 | (x-list-fonts "*" nil (selected-frame)) |
1078 | nil nil nil nil | |
1079 | (frame-parameter nil 'font)))) | |
fce3fdeb CY |
1080 | (list font current-prefix-arg nil))) |
1081 | (when (stringp font-name) | |
1082 | (let* ((this-frame (selected-frame)) | |
9f562668 CY |
1083 | ;; FRAMES nil means affect the selected frame. |
1084 | (frame-list (cond ((null frames) | |
1085 | (list this-frame)) | |
1086 | ((eq frames t) | |
1087 | (frame-list)) | |
1088 | (t frames))) | |
fce3fdeb | 1089 | height width) |
9f562668 | 1090 | (dolist (f frame-list) |
fce3fdeb CY |
1091 | (when (display-multi-font-p f) |
1092 | (if keep-size | |
1093 | (setq height (* (frame-parameter f 'height) | |
1094 | (frame-char-height f)) | |
1095 | width (* (frame-parameter f 'width) | |
1096 | (frame-char-width f)))) | |
1097 | ;; When set-face-attribute is called for :font, Emacs | |
1098 | ;; guesses the best font according to other face attributes | |
1099 | ;; (:width, :weight, etc.) so reset them too (Bug#2476). | |
1100 | (set-face-attribute 'default f | |
1101 | :width 'normal :weight 'normal | |
1102 | :slant 'normal :font font-name) | |
1103 | (if keep-size | |
1104 | (modify-frame-parameters | |
1105 | f | |
1106 | (list (cons 'height (round height (frame-char-height f))) | |
1107 | (cons 'width (round width (frame-char-width f)))))))) | |
9f562668 | 1108 | (when frames |
fce3fdeb CY |
1109 | ;; Alter the user's Custom setting of the `default' face, but |
1110 | ;; only for font-related attributes. | |
1111 | (let ((specs (cadr (assq 'user (get 'default 'theme-face)))) | |
1112 | (attrs '(:family :foundry :slant :weight :height :width)) | |
1113 | (new-specs nil)) | |
1114 | (if (null specs) (setq specs '((t nil)))) | |
1115 | (dolist (spec specs) | |
1116 | ;; Each SPEC has the form (DISPLAY ATTRIBUTE-PLIST) | |
1117 | (let ((display (nth 0 spec)) | |
1118 | (plist (copy-tree (nth 1 spec)))) | |
1119 | ;; Alter only DISPLAY conditions matching this frame. | |
1120 | (when (or (memq display '(t default)) | |
1121 | (face-spec-set-match-display display this-frame)) | |
1122 | (dolist (attr attrs) | |
1123 | (setq plist (plist-put plist attr | |
1124 | (face-attribute 'default attr))))) | |
1125 | (push (list display plist) new-specs))) | |
1126 | (setq new-specs (nreverse new-specs)) | |
1127 | (put 'default 'customized-face new-specs) | |
1128 | (custom-push-theme 'theme-face 'default 'user 'set new-specs) | |
1129 | (put 'default 'face-modified nil)))) | |
1130 | (run-hooks 'after-setting-font-hook 'after-setting-font-hooks))) | |
64c669bc | 1131 | |
7e573c4a | 1132 | (defun set-frame-parameter (frame parameter value) |
0dac35b8 KL |
1133 | "Set frame parameter PARAMETER to VALUE on FRAME. |
1134 | If FRAME is nil, it defaults to the selected frame. | |
c2c93894 | 1135 | See `modify-frame-parameters'." |
7e573c4a SM |
1136 | (modify-frame-parameters frame (list (cons parameter value)))) |
1137 | ||
8290babd | 1138 | (defun set-background-color (color-name) |
40d34803 | 1139 | "Set the background color of the selected frame to COLOR-NAME. |
61298010 RS |
1140 | When called interactively, prompt for the name of the color to use. |
1141 | To get the frame's current background color, use `frame-parameters'." | |
9317e499 | 1142 | (interactive (list (read-color "Background color: "))) |
dc6d9681 | 1143 | (modify-frame-parameters (selected-frame) |
528e1416 EZ |
1144 | (list (cons 'background-color color-name))) |
1145 | (or window-system | |
1146 | (face-set-after-frame-default (selected-frame)))) | |
64c669bc | 1147 | |
8290babd | 1148 | (defun set-foreground-color (color-name) |
40d34803 | 1149 | "Set the foreground color of the selected frame to COLOR-NAME. |
61298010 RS |
1150 | When called interactively, prompt for the name of the color to use. |
1151 | To get the frame's current foreground color, use `frame-parameters'." | |
9317e499 | 1152 | (interactive (list (read-color "Foreground color: "))) |
dc6d9681 | 1153 | (modify-frame-parameters (selected-frame) |
528e1416 EZ |
1154 | (list (cons 'foreground-color color-name))) |
1155 | (or window-system | |
1156 | (face-set-after-frame-default (selected-frame)))) | |
64c669bc JB |
1157 | |
1158 | (defun set-cursor-color (color-name) | |
40d34803 | 1159 | "Set the text cursor color of the selected frame to COLOR-NAME. |
61298010 | 1160 | When called interactively, prompt for the name of the color to use. |
2680c309 CY |
1161 | This works by setting the `cursor-color' frame parameter on the |
1162 | selected frame. | |
1163 | ||
1164 | You can also set the text cursor color, for all frames, by | |
1165 | customizing the `cursor' face." | |
9317e499 | 1166 | (interactive (list (read-color "Cursor color: "))) |
dc6d9681 | 1167 | (modify-frame-parameters (selected-frame) |
7eadab74 | 1168 | (list (cons 'cursor-color color-name)))) |
64c669bc | 1169 | |
eaa974e1 | 1170 | (defun set-mouse-color (color-name) |
40d34803 | 1171 | "Set the color of the mouse pointer of the selected frame to COLOR-NAME. |
61298010 RS |
1172 | When called interactively, prompt for the name of the color to use. |
1173 | To get the frame's current mouse color, use `frame-parameters'." | |
9317e499 | 1174 | (interactive (list (read-color "Mouse color: "))) |
dc6d9681 | 1175 | (modify-frame-parameters (selected-frame) |
ec6d4463 KH |
1176 | (list (cons 'mouse-color |
1177 | (or color-name | |
1178 | (cdr (assq 'mouse-color | |
1179 | (frame-parameters)))))))) | |
7eadab74 | 1180 | |
eaa974e1 | 1181 | (defun set-border-color (color-name) |
40d34803 | 1182 | "Set the color of the border of the selected frame to COLOR-NAME. |
61298010 RS |
1183 | When called interactively, prompt for the name of the color to use. |
1184 | To get the frame's current border color, use `frame-parameters'." | |
9317e499 | 1185 | (interactive (list (read-color "Border color: "))) |
eaa974e1 JB |
1186 | (modify-frame-parameters (selected-frame) |
1187 | (list (cons 'border-color color-name)))) | |
1188 | ||
f44379e7 | 1189 | (define-minor-mode auto-raise-mode |
ed472be9 | 1190 | "Toggle whether or not selected frames should auto-raise. |
06e21633 CY |
1191 | With a prefix argument ARG, enable Auto Raise mode if ARG is |
1192 | positive, and disable it otherwise. If called from Lisp, enable | |
1193 | the mode if ARG is omitted or nil. | |
1194 | ||
ed472be9 CY |
1195 | Auto Raise mode does nothing under most window managers, which |
1196 | switch focus on mouse clicks. It only has an effect if your | |
1197 | window manager switches focus on mouse movement (in which case | |
1198 | you should also change `focus-follows-mouse' to t). Then, | |
1199 | enabling Auto Raise mode causes any graphical Emacs frame which | |
1200 | acquires focus to be automatically raised. | |
1201 | ||
1202 | Note that this minor mode controls Emacs's own auto-raise | |
1203 | feature. Window managers that switch focus on mouse movement | |
1204 | often have their own auto-raise feature." | |
f44379e7 SM |
1205 | :variable (frame-parameter nil 'auto-raise) |
1206 | (if (frame-parameter nil 'auto-raise) | |
1207 | (raise-frame))) | |
7eadab74 | 1208 | |
f44379e7 | 1209 | (define-minor-mode auto-lower-mode |
7eadab74 | 1210 | "Toggle whether or not the selected frame should auto-lower. |
06e21633 CY |
1211 | With a prefix argument ARG, enable Auto Lower mode if ARG is |
1212 | positive, and disable it otherwise. If called from Lisp, enable | |
1213 | the mode if ARG is omitted or nil. | |
1214 | ||
ed472be9 CY |
1215 | Auto Lower mode does nothing under most window managers, which |
1216 | switch focus on mouse clicks. It only has an effect if your | |
1217 | window manager switches focus on mouse movement (in which case | |
1218 | you should also change `focus-follows-mouse' to t). Then, | |
1219 | enabling Auto Lower Mode causes any graphical Emacs frame which | |
1220 | loses focus to be automatically lowered. | |
1221 | ||
1222 | Note that this minor mode controls Emacs's own auto-lower | |
1223 | feature. Window managers that switch focus on mouse movement | |
1224 | often have their own features for raising or lowering frames." | |
f44379e7 SM |
1225 | :variable (frame-parameter nil 'auto-lower)) |
1226 | ||
7777d03b EZ |
1227 | (defun set-frame-name (name) |
1228 | "Set the name of the selected frame to NAME. | |
1229 | When called interactively, prompt for the name of the frame. | |
1230 | The frame name is displayed on the modeline if the terminal displays only | |
1231 | one frame, otherwise the name is displayed on the frame's caption bar." | |
1232 | (interactive "sFrame name: ") | |
1233 | (modify-frame-parameters (selected-frame) | |
1234 | (list (cons 'name name)))) | |
56cfea72 KS |
1235 | |
1236 | (defun frame-current-scroll-bars (&optional frame) | |
1237 | "Return the current scroll-bar settings in frame FRAME. | |
1cecf04d | 1238 | Value is a cons (VERTICAL . HORIZ0NTAL) where VERTICAL specifies the |
56cfea72 | 1239 | current location of the vertical scroll-bars (left, right, or nil), |
1cecf04d | 1240 | and HORIZONTAL specifies the current location of the horizontal scroll |
56cfea72 KS |
1241 | bars (top, bottom, or nil)." |
1242 | (let ((vert (frame-parameter frame 'vertical-scroll-bars)) | |
1243 | (hor nil)) | |
1244 | (unless (memq vert '(left right nil)) | |
1245 | (setq vert default-frame-scroll-bars)) | |
1246 | (cons vert hor))) | |
64c669bc | 1247 | \f |
9911648b | 1248 | ;;;; Frame/display capabilities. |
6ed8eeff KL |
1249 | (defun selected-terminal () |
1250 | "Return the terminal that is now selected." | |
1251 | (frame-terminal (selected-frame))) | |
b6660415 | 1252 | |
73e6adaa DN |
1253 | (declare-function msdos-mouse-p "dosfns.c") |
1254 | ||
9911648b EZ |
1255 | (defun display-mouse-p (&optional display) |
1256 | "Return non-nil if DISPLAY has a mouse available. | |
1257 | DISPLAY can be a display name, a frame, or nil (meaning the selected | |
1258 | frame's display)." | |
1259 | (let ((frame-type (framep-on-display display))) | |
1260 | (cond | |
1261 | ((eq frame-type 'pc) | |
1262 | (msdos-mouse-p)) | |
1263 | ((eq system-type 'windows-nt) | |
9fa5bb32 RS |
1264 | (with-no-warnings |
1265 | (> w32-num-mouse-buttons 0))) | |
9e2a2647 DN |
1266 | ((memq frame-type '(x ns)) |
1267 | t) ;; We assume X and NeXTstep *always* have a pointing device | |
9911648b | 1268 | (t |
7565ee93 DL |
1269 | (or (and (featurep 'xt-mouse) |
1270 | xterm-mouse-mode) | |
1271 | ;; t-mouse is distributed with the GPM package. It doesn't have | |
1272 | ;; a toggle. | |
1273 | (featurep 't-mouse)))))) | |
9911648b EZ |
1274 | |
1275 | (defun display-popup-menus-p (&optional display) | |
1276 | "Return non-nil if popup menus are supported on DISPLAY. | |
1277 | DISPLAY can be a display name, a frame, or nil (meaning the selected | |
1278 | frame's display). | |
1279 | Support for popup menus requires that the mouse be available." | |
1280 | (and | |
1281 | (let ((frame-type (framep-on-display display))) | |
9e2a2647 | 1282 | (memq frame-type '(x w32 pc ns))) |
9911648b EZ |
1283 | (display-mouse-p display))) |
1284 | ||
1285 | (defun display-graphic-p (&optional display) | |
1286 | "Return non-nil if DISPLAY is a graphic display. | |
1287 | Graphical displays are those which are capable of displaying several | |
1288 | frames and several different fonts at once. This is true for displays | |
1289 | that use a window system such as X, and false for text-only terminals. | |
1290 | DISPLAY can be a display name, a frame, or nil (meaning the selected | |
1291 | frame's display)." | |
9e2a2647 | 1292 | (not (null (memq (framep-on-display display) '(x w32 ns))))) |
9911648b | 1293 | |
ddc456e4 EZ |
1294 | (defun display-images-p (&optional display) |
1295 | "Return non-nil if DISPLAY can display images. | |
1296 | ||
1297 | DISPLAY can be a display name, a frame, or nil (meaning the selected | |
1298 | frame's display)." | |
1299 | (and (display-graphic-p display) | |
1300 | (fboundp 'image-mask-p) | |
fcc6f5cc | 1301 | (fboundp 'image-size))) |
ddc456e4 | 1302 | |
6693b279 EZ |
1303 | (defalias 'display-multi-frame-p 'display-graphic-p) |
1304 | (defalias 'display-multi-font-p 'display-graphic-p) | |
1305 | ||
9911648b EZ |
1306 | (defun display-selections-p (&optional display) |
1307 | "Return non-nil if DISPLAY supports selections. | |
1308 | A selection is a way to transfer text or other data between programs | |
45240125 | 1309 | via special system buffers called `selection' or `clipboard'. |
9911648b EZ |
1310 | DISPLAY can be a display name, a frame, or nil (meaning the selected |
1311 | frame's display)." | |
1312 | (let ((frame-type (framep-on-display display))) | |
1313 | (cond | |
1314 | ((eq frame-type 'pc) | |
1315 | ;; MS-DOG frames support selections when Emacs runs inside | |
1316 | ;; the Windows' DOS Box. | |
9fa5bb32 RS |
1317 | (with-no-warnings |
1318 | (not (null dos-windows-version)))) | |
9e2a2647 | 1319 | ((memq frame-type '(x w32 ns)) |
9911648b EZ |
1320 | t) ;; FIXME? |
1321 | (t | |
1322 | nil)))) | |
1323 | ||
aa360da1 GM |
1324 | (declare-function x-display-screens "xfns.c" (&optional terminal)) |
1325 | ||
9911648b EZ |
1326 | (defun display-screens (&optional display) |
1327 | "Return the number of screens associated with DISPLAY." | |
1328 | (let ((frame-type (framep-on-display display))) | |
1329 | (cond | |
9e2a2647 | 1330 | ((memq frame-type '(x w32 ns)) |
9911648b | 1331 | (x-display-screens display)) |
bb9404d6 | 1332 | (t |
9911648b EZ |
1333 | 1)))) |
1334 | ||
aa360da1 GM |
1335 | (declare-function x-display-pixel-height "xfns.c" (&optional terminal)) |
1336 | ||
9911648b EZ |
1337 | (defun display-pixel-height (&optional display) |
1338 | "Return the height of DISPLAY's screen in pixels. | |
1339 | For character terminals, each character counts as a single pixel." | |
1340 | (let ((frame-type (framep-on-display display))) | |
1341 | (cond | |
9e2a2647 | 1342 | ((memq frame-type '(x w32 ns)) |
9911648b EZ |
1343 | (x-display-pixel-height display)) |
1344 | (t | |
1345 | (frame-height (if (framep display) display (selected-frame))))))) | |
1346 | ||
aa360da1 GM |
1347 | (declare-function x-display-pixel-width "xfns.c" (&optional terminal)) |
1348 | ||
9911648b EZ |
1349 | (defun display-pixel-width (&optional display) |
1350 | "Return the width of DISPLAY's screen in pixels. | |
1351 | For character terminals, each character counts as a single pixel." | |
1352 | (let ((frame-type (framep-on-display display))) | |
1353 | (cond | |
9e2a2647 | 1354 | ((memq frame-type '(x w32 ns)) |
9911648b EZ |
1355 | (x-display-pixel-width display)) |
1356 | (t | |
1357 | (frame-width (if (framep display) display (selected-frame))))))) | |
1358 | ||
51e39dfc KS |
1359 | (defcustom display-mm-dimensions-alist nil |
1360 | "Alist for specifying screen dimensions in millimeters. | |
1361 | The dimensions will be used for `display-mm-height' and | |
1362 | `display-mm-width' if defined for the respective display. | |
1363 | ||
1364 | Each element of the alist has the form (display . (width . height)), | |
1365 | e.g. (\":0.0\" . (287 . 215)). | |
1366 | ||
1367 | If `display' equals t, it specifies dimensions for all graphical | |
c7015153 | 1368 | displays not explicitly specified." |
51e39dfc KS |
1369 | :version "22.1" |
1370 | :type '(alist :key-type (choice (string :tag "Display name") | |
1371 | (const :tag "Default" t)) | |
1372 | :value-type (cons :tag "Dimensions" | |
1373 | (integer :tag "Width") | |
1374 | (integer :tag "Height"))) | |
1375 | :group 'frames) | |
1376 | ||
aa360da1 GM |
1377 | (declare-function x-display-mm-height "xfns.c" (&optional terminal)) |
1378 | ||
9911648b EZ |
1379 | (defun display-mm-height (&optional display) |
1380 | "Return the height of DISPLAY's screen in millimeters. | |
d7cd2d8b | 1381 | System values can be overridden by `display-mm-dimensions-alist'. |
9911648b | 1382 | If the information is unavailable, value is nil." |
9e2a2647 | 1383 | (and (memq (framep-on-display display) '(x w32 ns)) |
51e39dfc KS |
1384 | (or (cddr (assoc (or display (frame-parameter nil 'display)) |
1385 | display-mm-dimensions-alist)) | |
1386 | (cddr (assoc t display-mm-dimensions-alist)) | |
1387 | (x-display-mm-height display)))) | |
9911648b | 1388 | |
aa360da1 GM |
1389 | (declare-function x-display-mm-width "xfns.c" (&optional terminal)) |
1390 | ||
9911648b EZ |
1391 | (defun display-mm-width (&optional display) |
1392 | "Return the width of DISPLAY's screen in millimeters. | |
d7cd2d8b | 1393 | System values can be overridden by `display-mm-dimensions-alist'. |
9911648b | 1394 | If the information is unavailable, value is nil." |
9e2a2647 | 1395 | (and (memq (framep-on-display display) '(x w32 ns)) |
51e39dfc KS |
1396 | (or (cadr (assoc (or display (frame-parameter nil 'display)) |
1397 | display-mm-dimensions-alist)) | |
1398 | (cadr (assoc t display-mm-dimensions-alist)) | |
1399 | (x-display-mm-width display)))) | |
9911648b | 1400 | |
aa360da1 GM |
1401 | (declare-function x-display-backing-store "xfns.c" (&optional terminal)) |
1402 | ||
9911648b EZ |
1403 | (defun display-backing-store (&optional display) |
1404 | "Return the backing store capability of DISPLAY's screen. | |
1405 | The value may be `always', `when-mapped', `not-useful', or nil if | |
1406 | the question is inapplicable to a certain kind of display." | |
1407 | (let ((frame-type (framep-on-display display))) | |
1408 | (cond | |
9e2a2647 | 1409 | ((memq frame-type '(x w32 ns)) |
9911648b EZ |
1410 | (x-display-backing-store display)) |
1411 | (t | |
1412 | 'not-useful)))) | |
1413 | ||
aa360da1 GM |
1414 | (declare-function x-display-save-under "xfns.c" (&optional terminal)) |
1415 | ||
9911648b EZ |
1416 | (defun display-save-under (&optional display) |
1417 | "Return non-nil if DISPLAY's screen supports the SaveUnder feature." | |
1418 | (let ((frame-type (framep-on-display display))) | |
1419 | (cond | |
9e2a2647 | 1420 | ((memq frame-type '(x w32 ns)) |
9911648b EZ |
1421 | (x-display-save-under display)) |
1422 | (t | |
1423 | 'not-useful)))) | |
1424 | ||
aa360da1 GM |
1425 | (declare-function x-display-planes "xfns.c" (&optional terminal)) |
1426 | ||
9911648b EZ |
1427 | (defun display-planes (&optional display) |
1428 | "Return the number of planes supported by DISPLAY." | |
1429 | (let ((frame-type (framep-on-display display))) | |
1430 | (cond | |
9e2a2647 | 1431 | ((memq frame-type '(x w32 ns)) |
9911648b EZ |
1432 | (x-display-planes display)) |
1433 | ((eq frame-type 'pc) | |
1434 | 4) | |
1435 | (t | |
1436 | (truncate (log (length (tty-color-alist)) 2)))))) | |
1437 | ||
aa360da1 GM |
1438 | (declare-function x-display-color-cells "xfns.c" (&optional terminal)) |
1439 | ||
9911648b EZ |
1440 | (defun display-color-cells (&optional display) |
1441 | "Return the number of color cells supported by DISPLAY." | |
1442 | (let ((frame-type (framep-on-display display))) | |
1443 | (cond | |
9e2a2647 | 1444 | ((memq frame-type '(x w32 ns)) |
9911648b EZ |
1445 | (x-display-color-cells display)) |
1446 | ((eq frame-type 'pc) | |
1447 | 16) | |
1448 | (t | |
3224dac1 | 1449 | (tty-display-color-cells display))))) |
9911648b | 1450 | |
aa360da1 GM |
1451 | (declare-function x-display-visual-class "xfns.c" (&optional terminal)) |
1452 | ||
9911648b | 1453 | (defun display-visual-class (&optional display) |
6cda144f | 1454 | "Return the visual class of DISPLAY. |
9911648b EZ |
1455 | The value is one of the symbols `static-gray', `gray-scale', |
1456 | `static-color', `pseudo-color', `true-color', or `direct-color'." | |
1457 | (let ((frame-type (framep-on-display display))) | |
1458 | (cond | |
9e2a2647 | 1459 | ((memq frame-type '(x w32 ns)) |
9911648b EZ |
1460 | (x-display-visual-class display)) |
1461 | ((and (memq frame-type '(pc t)) | |
1462 | (tty-display-color-p display)) | |
1463 | 'static-color) | |
1464 | (t | |
1465 | 'static-gray)))) | |
1466 | ||
1467 | \f | |
a32c1804 RS |
1468 | ;;;; Frame geometry values |
1469 | ||
1470 | (defun frame-geom-value-cons (type value &optional frame) | |
1471 | "Return equivalent geometry value for FRAME as a cons with car `+'. | |
1472 | A geometry value equivalent to VALUE for FRAME is returned, | |
1473 | where the value is a cons with car `+', not numeric. | |
1474 | TYPE is the car of the original geometry spec (TYPE . VALUE). | |
1475 | It is `top' or `left', depending on which edge VALUE is related to. | |
1476 | VALUE is the cdr of a frame geometry spec: (left/top . VALUE). | |
1477 | If VALUE is a number, then it is converted to a cons value, perhaps | |
1478 | relative to the opposite frame edge from that in the original spec. | |
1479 | FRAME defaults to the selected frame. | |
1480 | ||
1481 | Examples (measures in pixels) - | |
1482 | Assuming display height/width=1024, frame height/width=600: | |
1483 | 300 inside display edge: 300 => (+ 300) | |
1484 | (+ 300) => (+ 300) | |
1485 | 300 inside opposite display edge: (- 300) => (+ 124) | |
1486 | -300 => (+ 124) | |
1487 | 300 beyond display edge | |
1488 | (= 724 inside opposite display edge): (+ -300) => (+ -300) | |
1489 | 300 beyond display edge | |
1490 | (= 724 inside opposite display edge): (- -300) => (+ 724) | |
1491 | ||
1492 | In the 3rd, 4th, and 6th examples, the returned value is relative to | |
1493 | the opposite frame edge from the edge indicated in the input spec." | |
1494 | (cond ((and (consp value) (eq '+ (car value))) ; e.g. (+ 300), (+ -300) | |
1495 | value) | |
1496 | ((natnump value) (list '+ value)) ; e.g. 300 => (+ 300) | |
1497 | (t ; e.g. -300, (- 300), (- -300) | |
1498 | (list '+ (- (if (eq 'left type) ; => (+ 124), (+ 124), (+ 724) | |
1499 | (x-display-pixel-width) | |
1500 | (x-display-pixel-height)) | |
1501 | (if (integerp value) (- value) (cadr value)) | |
1502 | (if (eq 'left type) | |
1503 | (frame-pixel-width frame) | |
1504 | (frame-pixel-height frame))))))) | |
1505 | ||
1506 | (defun frame-geom-spec-cons (spec &optional frame) | |
1507 | "Return equivalent geometry spec for FRAME as a cons with car `+'. | |
1508 | A geometry specification equivalent to SPEC for FRAME is returned, | |
1509 | where the value is a cons with car `+', not numeric. | |
1510 | SPEC is a frame geometry spec: (left . VALUE) or (top . VALUE). | |
1511 | If VALUE is a number, then it is converted to a cons value, perhaps | |
1512 | relative to the opposite frame edge from that in the original spec. | |
1513 | FRAME defaults to the selected frame. | |
1514 | ||
1515 | Examples (measures in pixels) - | |
1516 | Assuming display height=1024, frame height=600: | |
1517 | top 300 below display top: (top . 300) => (top + 300) | |
1518 | (top + 300) => (top + 300) | |
1519 | bottom 300 above display bottom: (top - 300) => (top + 124) | |
1520 | (top . -300) => (top + 124) | |
1521 | top 300 above display top | |
1522 | (= bottom 724 above display bottom): (top + -300) => (top + -300) | |
1523 | bottom 300 below display bottom | |
1524 | (= top 724 below display top): (top - -300) => (top + 724) | |
1525 | ||
1526 | In the 3rd, 4th, and 6th examples, the returned value is relative to | |
1527 | the opposite frame edge from the edge indicated in the input spec." | |
06b60517 | 1528 | (cons (car spec) (frame-geom-value-cons (car spec) (cdr spec) frame))) |
a32c1804 | 1529 | \f |
9e2b097b | 1530 | |
154a757e | 1531 | (defun delete-other-frames (&optional frame) |
4a592f66 | 1532 | "Delete all frames on the current terminal, except FRAME. |
a2125918 GM |
1533 | If FRAME uses another frame's minibuffer, the minibuffer frame is |
1534 | left untouched. FRAME nil or omitted means use the selected frame." | |
154a757e GM |
1535 | (interactive) |
1536 | (unless frame | |
1537 | (setq frame (selected-frame))) | |
a2125918 GM |
1538 | (let* ((mini-frame (window-frame (minibuffer-window frame))) |
1539 | (frames (delq mini-frame (delq frame (frame-list))))) | |
5e5ae184 SM |
1540 | ;; Only consider frames on the same terminal. |
1541 | (dolist (frame (prog1 frames (setq frames nil))) | |
1542 | (if (eq (frame-terminal) (frame-terminal frame)) | |
1543 | (push frame frames))) | |
a2125918 GM |
1544 | ;; Delete mon-minibuffer-only frames first, because `delete-frame' |
1545 | ;; signals an error when trying to delete a mini-frame that's | |
1546 | ;; still in use by another frame. | |
1547 | (dolist (frame frames) | |
1548 | (unless (eq (frame-parameter frame 'minibuffer) 'only) | |
1549 | (delete-frame frame))) | |
1550 | ;; Delete minibuffer-only frames. | |
1551 | (dolist (frame frames) | |
1552 | (when (eq (frame-parameter frame 'minibuffer) 'only) | |
1553 | (delete-frame frame))))) | |
154a757e | 1554 | |
da7829a3 | 1555 | ;; miscellaneous obsolescence declarations |
84ed1560 JB |
1556 | (define-obsolete-variable-alias 'delete-frame-hook |
1557 | 'delete-frame-functions "22.1") | |
da7829a3 | 1558 | |
dc6d9681 | 1559 | \f |
7e573c4a | 1560 | ;; Blinking cursor |
81b99826 GM |
1561 | |
1562 | (defgroup cursor nil | |
ca693be8 | 1563 | "Displaying text cursors." |
40d34803 | 1564 | :version "21.1" |
81b99826 GM |
1565 | :group 'frames) |
1566 | ||
1567 | (defcustom blink-cursor-delay 0.5 | |
6cda144f | 1568 | "Seconds of idle time after which cursor starts to blink." |
81b99826 GM |
1569 | :type 'number |
1570 | :group 'cursor) | |
1571 | ||
1572 | (defcustom blink-cursor-interval 0.5 | |
6cda144f | 1573 | "Length of cursor blink interval in seconds." |
81b99826 GM |
1574 | :type 'number |
1575 | :group 'cursor) | |
1576 | ||
1577 | (defvar blink-cursor-idle-timer nil | |
ca693be8 GM |
1578 | "Timer started after `blink-cursor-delay' seconds of Emacs idle time. |
1579 | The function `blink-cursor-start' is called when the timer fires.") | |
81b99826 GM |
1580 | |
1581 | (defvar blink-cursor-timer nil | |
ca693be8 | 1582 | "Timer started from `blink-cursor-start'. |
a795e09a LT |
1583 | This timer calls `blink-cursor-timer-function' every |
1584 | `blink-cursor-interval' seconds.") | |
1585 | ||
81b99826 | 1586 | (defun blink-cursor-start () |
ca693be8 GM |
1587 | "Timer function called from the timer `blink-cursor-idle-timer'. |
1588 | This starts the timer `blink-cursor-timer', which makes the cursor blink | |
1589 | if appropriate. It also arranges to cancel that timer when the next | |
1590 | command starts, by installing a pre-command hook." | |
81b99826 | 1591 | (when (null blink-cursor-timer) |
f9ac92c5 CY |
1592 | ;; Set up the timer first, so that if this signals an error, |
1593 | ;; blink-cursor-end is not added to pre-command-hook. | |
81b99826 GM |
1594 | (setq blink-cursor-timer |
1595 | (run-with-timer blink-cursor-interval blink-cursor-interval | |
f9ac92c5 CY |
1596 | 'blink-cursor-timer-function)) |
1597 | (add-hook 'pre-command-hook 'blink-cursor-end) | |
1598 | (internal-show-cursor nil nil))) | |
0a5ebe4b GM |
1599 | |
1600 | (defun blink-cursor-timer-function () | |
1601 | "Timer function of timer `blink-cursor-timer'." | |
1602 | (internal-show-cursor nil (not (internal-show-cursor-p)))) | |
81b99826 GM |
1603 | |
1604 | (defun blink-cursor-end () | |
1605 | "Stop cursor blinking. | |
ca693be8 | 1606 | This is installed as a pre-command hook by `blink-cursor-start'. |
f39784dd | 1607 | When run, it cancels the timer `blink-cursor-timer' and removes |
ca693be8 | 1608 | itself as a pre-command hook." |
81b99826 | 1609 | (remove-hook 'pre-command-hook 'blink-cursor-end) |
0a5ebe4b | 1610 | (internal-show-cursor nil t) |
8ec94c16 SM |
1611 | (when blink-cursor-timer |
1612 | (cancel-timer blink-cursor-timer) | |
1613 | (setq blink-cursor-timer nil))) | |
81b99826 | 1614 | |
e5bd0a28 SM |
1615 | (define-obsolete-variable-alias 'blink-cursor 'blink-cursor-mode "22.1") |
1616 | ||
8ec94c16 | 1617 | (define-minor-mode blink-cursor-mode |
06e21633 CY |
1618 | "Toggle cursor blinking (Blink Cursor mode). |
1619 | With a prefix argument ARG, enable Blink Cursor mode if ARG is | |
1620 | positive, and disable it otherwise. If called from Lisp, enable | |
1621 | the mode if ARG is omitted or nil. | |
1622 | ||
1623 | This command is effective only on graphical frames. On text-only | |
1624 | terminals, cursor blinking is controlled by the terminal." | |
8ec94c16 SM |
1625 | :init-value (not (or noninteractive |
1626 | no-blinking-cursor | |
1627 | (eq system-type 'ms-dos) | |
0afb6242 | 1628 | (not (memq window-system '(x w32 ns))))) |
adba8116 | 1629 | :initialize 'custom-initialize-delay |
8ec94c16 SM |
1630 | :group 'cursor |
1631 | :global t | |
1632 | (if blink-cursor-idle-timer (cancel-timer blink-cursor-idle-timer)) | |
1633 | (setq blink-cursor-idle-timer nil) | |
1634 | (blink-cursor-end) | |
1635 | (when blink-cursor-mode | |
1636 | ;; Hide the cursor. | |
1637 | ;;(internal-show-cursor nil nil) | |
1638 | (setq blink-cursor-idle-timer | |
1639 | (run-with-idle-timer blink-cursor-delay | |
1640 | blink-cursor-delay | |
1641 | 'blink-cursor-start)))) | |
81b99826 | 1642 | |
81b99826 | 1643 | \f |
64c669bc | 1644 | ;;;; Key bindings |
64c669bc | 1645 | |
6238bfaf | 1646 | (define-key ctl-x-5-map "2" 'make-frame-command) |
154a757e | 1647 | (define-key ctl-x-5-map "1" 'delete-other-frames) |
dc6d9681 | 1648 | (define-key ctl-x-5-map "0" 'delete-frame) |
ceab6935 | 1649 | (define-key ctl-x-5-map "o" 'other-frame) |
49116ac0 | 1650 | |
7a76850c CY |
1651 | \f |
1652 | ;; Misc. | |
1653 | ||
94ee8db5 | 1654 | ;; Only marked as obsolete in 24.2. |
e5bd0a28 SM |
1655 | (define-obsolete-variable-alias 'automatic-hscrolling |
1656 | 'auto-hscroll-mode "22.1") | |
7a76850c CY |
1657 | |
1658 | (make-variable-buffer-local 'show-trailing-whitespace) | |
1659 | ||
dc6d9681 | 1660 | (provide 'frame) |
c88ab9ce | 1661 | |
dc6d9681 | 1662 | ;;; frame.el ends here |