Commit | Line | Data |
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55535639 | 1 | ;;; frame.el --- multi-frame management independent of window systems |
c88ab9ce | 2 | |
73b0cd50 | 3 | ;; Copyright (C) 1993-1994, 1996-1997, 2000-2011 |
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 KL |
41 | (defvar window-system-default-frame-alist nil |
42 | "Alist of window-system dependent default frame parameters. | |
dca6c418 MR |
43 | Parameters specified here supersede the values given in |
44 | `default-frame-alist'.") | |
bf1ba39f | 45 | |
7e573c4a SM |
46 | ;; The initial value given here used to ask for a minibuffer. |
47 | ;; But that's not necessary, because the default is to have one. | |
48 | ;; By not specifying it here, we let an X resource specify it. | |
fac580eb | 49 | (defcustom initial-frame-alist nil |
dca6c418 MR |
50 | "Alist of parameters for the initial X window frame. |
51 | You can set this in your init file; for example, | |
52 | ||
53 | (setq initial-frame-alist | |
54 | '((top . 1) (left . 1) (width . 80) (height . 55))) | |
55 | ||
56 | Parameters specified here supersede the values given in | |
57 | `default-frame-alist'. | |
58 | ||
59 | If the value calls for a frame without a minibuffer, and you have | |
60 | not created a minibuffer frame on your own, a minibuffer frame is | |
61 | created according to `minibuffer-frame-alist'. | |
62 | ||
63 | You can specify geometry-related options for just the initial | |
64 | frame by setting this variable in your init file; however, they | |
65 | won't take effect until Emacs reads your init file, which happens | |
66 | after creating the initial frame. If you want the initial frame | |
67 | to have the proper geometry as soon as it appears, you need to | |
68 | use this three-step process: | |
de17da15 RS |
69 | * Specify X resources to give the geometry you want. |
70 | * Set `default-frame-alist' to override these options so that they | |
71 | don't affect subsequent frames. | |
72 | * Set `initial-frame-alist' in a way that matches the X resources, | |
0c966f88 RS |
73 | to override what you put in `default-frame-alist'." |
74 | :type '(repeat (cons :format "%v" | |
75 | (symbol :tag "Parameter") | |
76 | (sexp :tag "Value"))) | |
77 | :group 'frames) | |
64c669bc | 78 | |
0b9d32af | 79 | (defcustom minibuffer-frame-alist '((width . 80) (height . 2)) |
92e02072 CY |
80 | "Alist of parameters for the initial minibuffer frame. |
81 | This is the minibuffer frame created if `initial-frame-alist' | |
82 | calls for a frame without a minibuffer. The parameters specified | |
83 | here supersede those given in `default-frame-alist', for the | |
84 | initial minibuffer frame. | |
85 | ||
dca6c418 MR |
86 | You can set this in your init file; for example, |
87 | ||
dc6d9681 | 88 | (setq minibuffer-frame-alist |
dca6c418 MR |
89 | '((top . 1) (left . 1) (width . 80) (height . 2))) |
90 | ||
92e02072 CY |
91 | It is not necessary to include (minibuffer . only); that is |
92 | appended when the minibuffer frame is created." | |
0b9d32af RS |
93 | :type '(repeat (cons :format "%v" |
94 | (symbol :tag "Parameter") | |
95 | (sexp :tag "Value"))) | |
96 | :group 'frames) | |
64c669bc | 97 | |
924be53a | 98 | (defun handle-delete-frame (event) |
40d34803 | 99 | "Handle delete-frame events from the X server." |
924be53a RS |
100 | (interactive "e") |
101 | (let ((frame (posn-window (event-start event))) | |
102 | (i 0) | |
103 | (tail (frame-list))) | |
104 | (while tail | |
105 | (and (frame-visible-p (car tail)) | |
106 | (not (eq (car tail) frame)) | |
107 | (setq i (1+ i))) | |
108 | (setq tail (cdr tail))) | |
109 | (if (> i 0) | |
110 | (delete-frame frame t) | |
a9562d19 RS |
111 | ;; Gildea@x.org says it is ok to ask questions before terminating. |
112 | (save-buffers-kill-emacs)))) | |
64c669bc | 113 | \f |
dc6d9681 | 114 | ;;;; Arrangement of frames at startup |
64c669bc | 115 | |
7e573c4a SM |
116 | ;; 1) Load the window system startup file from the lisp library and read the |
117 | ;; high-priority arguments (-q and the like). The window system startup | |
118 | ;; file should create any frames specified in the window system defaults. | |
119 | ;; | |
120 | ;; 2) If no frames have been opened, we open an initial text frame. | |
121 | ;; | |
122 | ;; 3) Once the init file is done, we apply any newly set parameters | |
123 | ;; in initial-frame-alist to the frame. | |
64c669bc | 124 | |
85557d7e | 125 | ;; These are now called explicitly at the proper times, |
fc4d4afb RS |
126 | ;; since that is easier to understand. |
127 | ;; Actually using hooks within Emacs is bad for future maintenance. --rms. | |
128 | ;; (add-hook 'before-init-hook 'frame-initialize) | |
129 | ;; (add-hook 'window-setup-hook 'frame-notice-user-settings) | |
64c669bc | 130 | |
7e573c4a | 131 | ;; If we create the initial frame, this is it. |
dc6d9681 | 132 | (defvar frame-initial-frame nil) |
64c669bc | 133 | |
3f2f8c83 RS |
134 | ;; Record the parameters used in frame-initialize to make the initial frame. |
135 | (defvar frame-initial-frame-alist) | |
136 | ||
791e09d8 RS |
137 | (defvar frame-initial-geometry-arguments nil) |
138 | ||
7e573c4a SM |
139 | ;; startup.el calls this function before loading the user's init |
140 | ;; file - if there is no frame with a minibuffer open now, create | |
141 | ;; one to display messages while loading the init file. | |
dc6d9681 | 142 | (defun frame-initialize () |
ff2a1c79 | 143 | "Create an initial frame if necessary." |
64c669bc | 144 | ;; Are we actually running under a window system at all? |
2246281f KL |
145 | (if (and initial-window-system |
146 | (not noninteractive) | |
147 | (not (eq initial-window-system 'pc))) | |
7eadab74 JB |
148 | (progn |
149 | ;; If there is no frame with a minibuffer besides the terminal | |
150 | ;; frame, then we need to create the opening frame. Make sure | |
151 | ;; it has a minibuffer, but let initial-frame-alist omit the | |
152 | ;; minibuffer spec. | |
153 | (or (delq terminal-frame (minibuffer-frame-list)) | |
36fc9c9f | 154 | (progn |
3f2f8c83 | 155 | (setq frame-initial-frame-alist |
9688894d | 156 | (append initial-frame-alist default-frame-alist nil)) |
a8bb5882 RS |
157 | (or (assq 'horizontal-scroll-bars frame-initial-frame-alist) |
158 | (setq frame-initial-frame-alist | |
159 | (cons '(horizontal-scroll-bars . t) | |
160 | frame-initial-frame-alist))) | |
2246281f KL |
161 | (setq frame-initial-frame-alist |
162 | (cons (cons 'window-system initial-window-system) | |
163 | frame-initial-frame-alist)) | |
36fc9c9f RS |
164 | (setq default-minibuffer-frame |
165 | (setq frame-initial-frame | |
96a84970 | 166 | (make-frame frame-initial-frame-alist))) |
11281034 RS |
167 | ;; Delete any specifications for window geometry parameters |
168 | ;; so that we won't reapply them in frame-notice-user-settings. | |
169 | ;; It would be wrong to reapply them then, | |
170 | ;; because that would override explicit user resizing. | |
58bf6042 | 171 | (setq initial-frame-alist |
c2079f0a | 172 | (frame-remove-geometry-params initial-frame-alist)))) |
a13f8f50 KL |
173 | ;; Copy the environment of the Emacs process into the new frame. |
174 | (set-frame-parameter frame-initial-frame 'environment | |
175 | (frame-parameter terminal-frame 'environment)) | |
85557d7e | 176 | ;; At this point, we know that we have a frame open, so we |
dc6d9681 JB |
177 | ;; can delete the terminal frame. |
178 | (delete-frame terminal-frame) | |
2246281f | 179 | (setq terminal-frame nil)))) |
85557d7e | 180 | |
8f2a992b GM |
181 | (defvar frame-notice-user-settings t |
182 | "Non-nil means function `frame-notice-user-settings' wasn't run yet.") | |
183 | ||
aa360da1 GM |
184 | (declare-function tool-bar-mode "tool-bar" (&optional arg)) |
185 | ||
7e573c4a SM |
186 | ;; startup.el calls this function after loading the user's init |
187 | ;; file. Now default-frame-alist and initial-frame-alist contain | |
188 | ;; information to which we must react; do what needs to be done. | |
dc6d9681 | 189 | (defun frame-notice-user-settings () |
40d34803 | 190 | "Act on user's init file settings of frame parameters. |
0e1bfc78 KL |
191 | React to settings of `initial-frame-alist', |
192 | `window-system-default-frame-alist' and `default-frame-alist' | |
193 | there (in decreasing order of priority)." | |
7eadab74 JB |
194 | ;; Creating and deleting frames may shift the selected frame around, |
195 | ;; and thus the current buffer. Protect against that. We don't | |
196 | ;; want to use save-excursion here, because that may also try to set | |
197 | ;; the buffer of the selected window, which fails when the selected | |
198 | ;; window is the minibuffer. | |
0e1bfc78 | 199 | (let ((old-buffer (current-buffer)) |
cb01ce3f SM |
200 | (window-system-frame-alist |
201 | (cdr (assq initial-window-system | |
202 | window-system-default-frame-alist)))) | |
7eadab74 | 203 | |
8f2a992b GM |
204 | (when (and frame-notice-user-settings |
205 | (null frame-initial-frame)) | |
42002db5 EZ |
206 | ;; This case happens when we don't have a window system, and |
207 | ;; also for MS-DOS frames. | |
0216b738 | 208 | (let ((parms (frame-parameters))) |
8f2a992b GM |
209 | ;; Don't change the frame names. |
210 | (setq parms (delq (assq 'name parms) parms)) | |
211 | ;; Can't modify the minibuffer parameter, so don't try. | |
212 | (setq parms (delq (assq 'minibuffer parms) parms)) | |
0216b738 CY |
213 | (modify-frame-parameters |
214 | nil | |
215 | (if initial-window-system | |
216 | parms | |
217 | ;; initial-frame-alist and default-frame-alist were already | |
218 | ;; applied in pc-win.el. | |
219 | (append initial-frame-alist window-system-frame-alist | |
220 | default-frame-alist parms nil))) | |
2246281f | 221 | (if (null initial-window-system) ;; MS-DOS does this differently in pc-win.el |
42002db5 EZ |
222 | (let ((newparms (frame-parameters)) |
223 | (frame (selected-frame))) | |
224 | (tty-handle-reverse-video frame newparms) | |
225 | ;; If we changed the background color, we need to update | |
226 | ;; the background-mode parameter, and maybe some faces, | |
227 | ;; too. | |
228 | (when (assq 'background-color newparms) | |
229 | (unless (or (assq 'background-mode initial-frame-alist) | |
230 | (assq 'background-mode default-frame-alist)) | |
231 | (frame-set-background-mode frame)) | |
232 | (face-set-after-frame-default frame)))))) | |
8f2a992b | 233 | |
7eadab74 JB |
234 | ;; If the initial frame is still around, apply initial-frame-alist |
235 | ;; and default-frame-alist to it. | |
9688894d GM |
236 | (when (frame-live-p frame-initial-frame) |
237 | ||
238 | ;; When tool-bar has been switched off, correct the frame size | |
239 | ;; by the lines added in x-create-frame for the tool-bar and | |
240 | ;; switch `tool-bar-mode' off. | |
085ef9b3 GM |
241 | (when (display-graphic-p) |
242 | (let ((tool-bar-lines (or (assq 'tool-bar-lines initial-frame-alist) | |
0e1bfc78 | 243 | (assq 'tool-bar-lines window-system-frame-alist) |
085ef9b3 | 244 | (assq 'tool-bar-lines default-frame-alist)))) |
5c39a60f JR |
245 | (when (and tool-bar-originally-present |
246 | (or (null tool-bar-lines) | |
247 | (null (cdr tool-bar-lines)) | |
248 | (eq 0 (cdr tool-bar-lines)))) | |
085ef9b3 | 249 | (let* ((char-height (frame-char-height frame-initial-frame)) |
5c39a60f | 250 | (image-height tool-bar-images-pixel-height) |
085ef9b3 GM |
251 | (margin (cond ((and (consp tool-bar-button-margin) |
252 | (integerp (cdr tool-bar-button-margin)) | |
253 | (> tool-bar-button-margin 0)) | |
254 | (cdr tool-bar-button-margin)) | |
255 | ((and (integerp tool-bar-button-margin) | |
256 | (> tool-bar-button-margin 0)) | |
257 | tool-bar-button-margin) | |
258 | (t 0))) | |
259 | (relief (if (and (integerp tool-bar-button-relief) | |
260 | (> tool-bar-button-relief 0)) | |
261 | tool-bar-button-relief 3)) | |
f39784dd | 262 | (lines (/ (+ image-height |
085ef9b3 GM |
263 | (* 2 margin) |
264 | (* 2 relief) | |
265 | (1- char-height)) | |
266 | char-height)) | |
267 | (height (frame-parameter frame-initial-frame 'height)) | |
268 | (newparms (list (cons 'height (- height lines)))) | |
f39784dd | 269 | (initial-top (cdr (assq 'top |
085ef9b3 GM |
270 | frame-initial-geometry-arguments))) |
271 | (top (frame-parameter frame-initial-frame 'top))) | |
272 | (when (and (consp initial-top) (eq '- (car initial-top))) | |
7f18ce22 RS |
273 | (let ((adjusted-top |
274 | (cond ((and (consp top) | |
275 | (eq '+ (car top))) | |
276 | (list '+ | |
277 | (+ (cadr top) | |
278 | (* lines char-height)))) | |
279 | ((and (consp top) | |
280 | (eq '- (car top))) | |
281 | (list '- | |
282 | (- (cadr top) | |
283 | (* lines char-height)))) | |
284 | (t (+ top (* lines char-height)))))) | |
285 | (setq newparms | |
286 | (append newparms | |
287 | `((top . ,adjusted-top)) | |
288 | nil)))) | |
085ef9b3 GM |
289 | (modify-frame-parameters frame-initial-frame newparms) |
290 | (tool-bar-mode -1))))) | |
9688894d GM |
291 | |
292 | ;; The initial frame we create above always has a minibuffer. | |
293 | ;; If the user wants to remove it, or make it a minibuffer-only | |
294 | ;; frame, then we'll have to delete the current frame and make a | |
295 | ;; new one; you can't remove or add a root window to/from an | |
296 | ;; existing frame. | |
297 | ;; | |
298 | ;; NOTE: default-frame-alist was nil when we created the | |
299 | ;; existing frame. We need to explicitly include | |
300 | ;; default-frame-alist in the parameters of the screen we | |
301 | ;; create here, so that its new value, gleaned from the user's | |
302 | ;; .emacs file, will be applied to the existing screen. | |
de2f5dbe | 303 | (if (not (eq (cdr (or (assq 'minibuffer initial-frame-alist) |
0e1bfc78 | 304 | (assq 'minibuffer window-system-frame-alist) |
de2f5dbe GM |
305 | (assq 'minibuffer default-frame-alist) |
306 | '(minibuffer . t))) | |
307 | t)) | |
308 | ;; Create the new frame. | |
309 | (let (parms new) | |
310 | ;; If the frame isn't visible yet, wait till it is. | |
311 | ;; If the user has to position the window, | |
312 | ;; Emacs doesn't know its real position until | |
313 | ;; the frame is seen to be visible. | |
314 | (while (not (cdr (assq 'visibility | |
315 | (frame-parameters frame-initial-frame)))) | |
316 | (sleep-for 1)) | |
317 | (setq parms (frame-parameters frame-initial-frame)) | |
9688894d | 318 | |
f39784dd | 319 | ;; Get rid of `name' unless it was specified explicitly before. |
de2f5dbe GM |
320 | (or (assq 'name frame-initial-frame-alist) |
321 | (setq parms (delq (assq 'name parms) parms))) | |
2f5bb432 SM |
322 | ;; An explicit parent-id is a request to XEmbed the frame. |
323 | (or (assq 'parent-id frame-initial-frame-alist) | |
324 | (setq parms (delq (assq 'parent-id parms) parms))) | |
de2f5dbe GM |
325 | |
326 | (setq parms (append initial-frame-alist | |
0e1bfc78 | 327 | window-system-frame-alist |
de2f5dbe GM |
328 | default-frame-alist |
329 | parms | |
330 | nil)) | |
331 | ||
332 | ;; Get rid of `reverse', because that was handled | |
333 | ;; when we first made the frame. | |
334 | (setq parms (cons '(reverse) (delq (assq 'reverse parms) parms))) | |
335 | ||
336 | (if (assq 'height frame-initial-geometry-arguments) | |
337 | (setq parms (assq-delete-all 'height parms))) | |
338 | (if (assq 'width frame-initial-geometry-arguments) | |
339 | (setq parms (assq-delete-all 'width parms))) | |
340 | (if (assq 'left frame-initial-geometry-arguments) | |
341 | (setq parms (assq-delete-all 'left parms))) | |
342 | (if (assq 'top frame-initial-geometry-arguments) | |
343 | (setq parms (assq-delete-all 'top parms))) | |
344 | (setq new | |
345 | (make-frame | |
346 | ;; Use the geometry args that created the existing | |
347 | ;; frame, rather than the parms we get for it. | |
348 | (append frame-initial-geometry-arguments | |
349 | '((user-size . t) (user-position . t)) | |
350 | parms))) | |
351 | ;; The initial frame, which we are about to delete, may be | |
352 | ;; the only frame with a minibuffer. If it is, create a | |
353 | ;; new one. | |
354 | (or (delq frame-initial-frame (minibuffer-frame-list)) | |
355 | (make-initial-minibuffer-frame nil)) | |
356 | ||
357 | ;; If the initial frame is serving as a surrogate | |
358 | ;; minibuffer frame for any frames, we need to wean them | |
359 | ;; onto a new frame. The default-minibuffer-frame | |
360 | ;; variable must be handled similarly. | |
361 | (let ((users-of-initial | |
362 | (filtered-frame-list | |
b7de6024 SM |
363 | (lambda (frame) |
364 | (and (not (eq frame frame-initial-frame)) | |
365 | (eq (window-frame | |
366 | (minibuffer-window frame)) | |
367 | frame-initial-frame)))))) | |
368 | (if (or users-of-initial | |
de2f5dbe GM |
369 | (eq default-minibuffer-frame frame-initial-frame)) |
370 | ||
371 | ;; Choose an appropriate frame. Prefer frames which | |
372 | ;; are only minibuffers. | |
373 | (let* ((new-surrogate | |
374 | (car | |
375 | (or (filtered-frame-list | |
b7de6024 SM |
376 | (lambda (frame) |
377 | (eq (cdr (assq 'minibuffer | |
378 | (frame-parameters frame))) | |
379 | 'only))) | |
de2f5dbe GM |
380 | (minibuffer-frame-list)))) |
381 | (new-minibuffer (minibuffer-window new-surrogate))) | |
382 | ||
383 | (if (eq default-minibuffer-frame frame-initial-frame) | |
384 | (setq default-minibuffer-frame new-surrogate)) | |
385 | ||
386 | ;; Wean the frames using frame-initial-frame as | |
387 | ;; their minibuffer frame. | |
b7de6024 SM |
388 | (dolist (frame users-of-initial) |
389 | (modify-frame-parameters | |
390 | frame (list (cons 'minibuffer new-minibuffer))))))) | |
391 | ||
392 | ;; Redirect events enqueued at this frame to the new frame. | |
de2f5dbe GM |
393 | ;; Is this a good idea? |
394 | (redirect-frame-focus frame-initial-frame new) | |
395 | ||
396 | ;; Finally, get rid of the old frame. | |
397 | (delete-frame frame-initial-frame t)) | |
9688894d GM |
398 | |
399 | ;; Otherwise, we don't need all that rigamarole; just apply | |
400 | ;; the new parameters. | |
401 | (let (newparms allparms tail) | |
402 | (setq allparms (append initial-frame-alist | |
0e1bfc78 | 403 | window-system-frame-alist |
9688894d GM |
404 | default-frame-alist nil)) |
405 | (if (assq 'height frame-initial-geometry-arguments) | |
406 | (setq allparms (assq-delete-all 'height allparms))) | |
407 | (if (assq 'width frame-initial-geometry-arguments) | |
408 | (setq allparms (assq-delete-all 'width allparms))) | |
409 | (if (assq 'left frame-initial-geometry-arguments) | |
410 | (setq allparms (assq-delete-all 'left allparms))) | |
411 | (if (assq 'top frame-initial-geometry-arguments) | |
412 | (setq allparms (assq-delete-all 'top allparms))) | |
413 | (setq tail allparms) | |
414 | ;; Find just the parms that have changed since we first | |
415 | ;; made this frame. Those are the ones actually set by | |
f39784dd | 416 | ;; the init file. For those parms whose values we already knew |
9688894d GM |
417 | ;; (such as those spec'd by command line options) |
418 | ;; it is undesirable to specify the parm again | |
f39784dd | 419 | ;; once the user has seen the frame and been able to alter it |
9688894d | 420 | ;; manually. |
0216b738 CY |
421 | (let (newval oldval) |
422 | (dolist (entry tail) | |
423 | (setq oldval (assq (car entry) frame-initial-frame-alist)) | |
424 | (setq newval (cdr (assq (car entry) allparms))) | |
9688894d GM |
425 | (or (and oldval (eq (cdr oldval) newval)) |
426 | (setq newparms | |
0216b738 | 427 | (cons (cons (car entry) newval) newparms))))) |
9688894d | 428 | (setq newparms (nreverse newparms)) |
0216b738 CY |
429 | |
430 | (let ((new-bg (assq 'background-color newparms))) | |
431 | ;; If the `background-color' parameter is changed, apply | |
432 | ;; it first, then make sure that the `background-mode' | |
433 | ;; parameter and other faces are updated, before applying | |
434 | ;; the other parameters. | |
435 | (when new-bg | |
436 | (modify-frame-parameters frame-initial-frame | |
437 | (list new-bg)) | |
438 | (unless (assq 'background-mode newparms) | |
439 | (frame-set-background-mode frame-initial-frame)) | |
440 | (face-set-after-frame-default frame-initial-frame) | |
441 | (setq newparms (delq new-bg newparms))) | |
442 | (modify-frame-parameters frame-initial-frame newparms))))) | |
64c669bc | 443 | |
7eadab74 JB |
444 | ;; Restore the original buffer. |
445 | (set-buffer old-buffer) | |
446 | ||
447 | ;; Make sure the initial frame can be GC'd if it is ever deleted. | |
d202f1f2 | 448 | ;; Make sure frame-notice-user-settings does nothing if called twice. |
8f2a992b | 449 | (setq frame-notice-user-settings nil) |
d202f1f2 | 450 | (setq frame-initial-frame nil))) |
64c669bc | 451 | |
746bd265 KH |
452 | (defun make-initial-minibuffer-frame (display) |
453 | (let ((parms (append minibuffer-frame-alist '((minibuffer . only))))) | |
454 | (if display | |
455 | (make-frame-on-display display parms) | |
456 | (make-frame parms)))) | |
457 | ||
7eadab74 | 458 | ;;;; Creation of additional frames, and other frame miscellanea |
dc6d9681 | 459 | |
63019bad | 460 | (defun modify-all-frames-parameters (alist) |
d398de43 | 461 | "Modify all current and future frames' parameters according to ALIST. |
63019bad | 462 | This changes `default-frame-alist' and possibly `initial-frame-alist'. |
095fe281 KL |
463 | Furthermore, this function removes all parameters in ALIST from |
464 | `window-system-default-frame-alist'. | |
63019bad | 465 | See help of `modify-frame-parameters' for more information." |
095fe281 KL |
466 | (dolist (frame (frame-list)) |
467 | (modify-frame-parameters frame alist)) | |
468 | ||
469 | (dolist (pair alist) ;; conses to add/replace | |
470 | ;; initial-frame-alist needs setting only when | |
471 | ;; frame-notice-user-settings is true. | |
472 | (and frame-notice-user-settings | |
473 | (setq initial-frame-alist | |
474 | (assq-delete-all (car pair) initial-frame-alist))) | |
475 | (setq default-frame-alist | |
476 | (assq-delete-all (car pair) default-frame-alist)) | |
477 | ;; Remove any similar settings from the window-system specific | |
478 | ;; parameters---they would override default-frame-alist. | |
479 | (dolist (w window-system-default-frame-alist) | |
480 | (setcdr w (assq-delete-all (car pair) (cdr w))))) | |
481 | ||
63019bad JB |
482 | (and frame-notice-user-settings |
483 | (setq initial-frame-alist (append initial-frame-alist alist))) | |
484 | (setq default-frame-alist (append default-frame-alist alist))) | |
485 | ||
7253d8e0 | 486 | (defun get-other-frame () |
40d34803 DL |
487 | "Return some frame other than the current frame. |
488 | Create one if necessary. Note that the minibuffer frame, if separate, | |
489 | is not considered (see `next-frame')." | |
dc6d9681 | 490 | (let ((s (if (equal (next-frame (selected-frame)) (selected-frame)) |
6eb018ba | 491 | (make-frame) |
dc6d9681 | 492 | (next-frame (selected-frame))))) |
64c669bc JB |
493 | s)) |
494 | ||
dc6d9681 JB |
495 | (defun next-multiframe-window () |
496 | "Select the next window, regardless of which frame it is on." | |
64c669bc JB |
497 | (interactive) |
498 | (select-window (next-window (selected-window) | |
499 | (> (minibuffer-depth) 0) | |
bb2c34b1 | 500 | 0)) |
030f4537 | 501 | (select-frame-set-input-focus (selected-frame))) |
64c669bc | 502 | |
dc6d9681 JB |
503 | (defun previous-multiframe-window () |
504 | "Select the previous window, regardless of which frame it is on." | |
64c669bc JB |
505 | (interactive) |
506 | (select-window (previous-window (selected-window) | |
507 | (> (minibuffer-depth) 0) | |
bb2c34b1 | 508 | 0)) |
030f4537 | 509 | (select-frame-set-input-focus (selected-frame))) |
64c669bc | 510 | |
bbf6ef44 | 511 | (declare-function x-initialize-window-system "term/x-win" ()) |
4c1863cd | 512 | (declare-function ns-initialize-window-system "term/ns-win" ()) |
5f9214ee | 513 | (defvar x-display-name) ; term/x-win |
bbf6ef44 | 514 | |
6d73e337 | 515 | (defun make-frame-on-display (display &optional parameters) |
c5a8bc01 CY |
516 | "Make a frame on display DISPLAY. |
517 | The optional argument PARAMETERS specifies additional frame parameters." | |
6d73e337 | 518 | (interactive "sMake frame on display: ") |
c5a8bc01 CY |
519 | (cond ((featurep 'ns) |
520 | (when (and (boundp 'ns-initialized) (not ns-initialized)) | |
521 | (setq x-display-name display) | |
522 | (ns-initialize-window-system)) | |
523 | (make-frame `((window-system . ns) | |
524 | (display . ,display) . ,parameters))) | |
525 | ((eq system-type 'windows-nt) | |
526 | ;; On Windows, ignore DISPLAY. | |
527 | (make-frame parameters)) | |
528 | (t | |
69135f12 | 529 | (unless (string-match-p "\\`[^:]*:[0-9]+\\(\\.[0-9]+\\)?\\'" display) |
c5a8bc01 CY |
530 | (error "Invalid display, not HOST:SERVER or HOST:SERVER.SCREEN")) |
531 | (when (and (boundp 'x-initialized) (not x-initialized)) | |
532 | (setq x-display-name display) | |
533 | (x-initialize-window-system)) | |
534 | (make-frame `((window-system . x) | |
535 | (display . ,display) . ,parameters))))) | |
6d73e337 | 536 | |
aa360da1 GM |
537 | (declare-function x-close-connection "xfns.c" (terminal)) |
538 | ||
b7de6024 SM |
539 | (defun close-display-connection (display) |
540 | "Close the connection to a display, deleting all its associated frames. | |
541 | For DISPLAY, specify either a frame or a display name (a string). | |
542 | If DISPLAY is nil, that stands for the selected frame's display." | |
543 | (interactive | |
544 | (list | |
545 | (let* ((default (frame-parameter nil 'display)) | |
546 | (display (completing-read | |
547 | (format "Close display (default %s): " default) | |
548 | (delete-dups | |
549 | (mapcar (lambda (frame) | |
550 | (frame-parameter frame 'display)) | |
551 | (frame-list))) | |
552 | nil t nil nil | |
553 | default))) | |
554 | (if (zerop (length display)) default display)))) | |
555 | (let ((frames (delq nil | |
556 | (mapcar (lambda (frame) | |
557 | (if (equal display | |
558 | (frame-parameter frame 'display)) | |
559 | frame)) | |
560 | (frame-list))))) | |
561 | (if (and (consp frames) | |
562 | (not (y-or-n-p (if (cdr frames) | |
563 | (format "Delete %s frames? " (length frames)) | |
564 | (format "Delete %s ? " (car frames)))))) | |
565 | (error "Abort!") | |
566 | (mapc 'delete-frame frames) | |
567 | (x-close-connection display)))) | |
568 | ||
6238bfaf | 569 | (defun make-frame-command () |
e9e6aee8 CY |
570 | "Make a new frame, on the same terminal as the selected frame. |
571 | If the terminal is a text-only terminal, this also selects the | |
572 | new frame." | |
6238bfaf | 573 | (interactive) |
e9e6aee8 | 574 | (if (display-graphic-p) |
6238bfaf RS |
575 | (make-frame) |
576 | (select-frame (make-frame)))) | |
577 | ||
45c4fdeb SM |
578 | (defvar before-make-frame-hook nil |
579 | "Functions to run before a frame is created.") | |
580 | ||
581 | (defvar after-make-frame-functions nil | |
582 | "Functions to run after a frame is created. | |
583 | The functions are run with one arg, the newly created frame.") | |
584 | ||
72bf1a8b | 585 | (defvar after-setting-font-hook nil |
81b99826 GM |
586 | "Functions to run after a frame's font has been changed.") |
587 | ||
92e443b1 | 588 | ;; Alias, kept temporarily. |
84ed1560 | 589 | (define-obsolete-function-alias 'new-frame 'make-frame "22.1") |
bc93c097 | 590 | |
9e483377 | 591 | (defvar frame-inherited-parameters '() |
ab6198b2 SM |
592 | ;; FIXME: Shouldn't we add `font' here as well? |
593 | "Parameters `make-frame' copies from the `selected-frame' to the new frame.") | |
594 | ||
45c4fdeb SM |
595 | (defun make-frame (&optional parameters) |
596 | "Return a newly created frame displaying the current buffer. | |
c1ef4455 CY |
597 | Optional argument PARAMETERS is an alist of frame parameters for |
598 | the new frame. Each element of PARAMETERS should have the | |
599 | form (NAME . VALUE), for example: | |
a105105a | 600 | |
45c4fdeb | 601 | (name . STRING) The frame should be named STRING. |
43a2e52c | 602 | |
45c4fdeb SM |
603 | (width . NUMBER) The frame should be NUMBER characters in width. |
604 | (height . NUMBER) The frame should be NUMBER text lines high. | |
43a2e52c | 605 | |
c1ef4455 CY |
606 | You cannot specify either `width' or `height', you must specify |
607 | neither or both. | |
43a2e52c | 608 | |
45c4fdeb SM |
609 | (minibuffer . t) The frame should have a minibuffer. |
610 | (minibuffer . nil) The frame should have no minibuffer. | |
611 | (minibuffer . only) The frame should contain only a minibuffer. | |
612 | (minibuffer . WINDOW) The frame should use WINDOW as its minibuffer window. | |
43a2e52c | 613 | |
2246281f KL |
614 | (window-system . nil) The frame should be displayed on a terminal device. |
615 | (window-system . x) The frame should be displayed in an X window. | |
616 | ||
d51f6378 | 617 | (terminal . TERMINAL) The frame should use the terminal object TERMINAL. |
b6660415 | 618 | |
c1ef4455 CY |
619 | In addition, any parameter specified in `default-frame-alist', |
620 | but not present in PARAMETERS, is applied. | |
8de9d3f6 | 621 | |
c1ef4455 CY |
622 | Before creating the frame (via `frame-creation-function-alist'), |
623 | this function runs the hook `before-make-frame-hook'. After | |
624 | creating the frame, it runs the hook `after-make-frame-functions' | |
625 | with one arg, the newly created frame. | |
626 | ||
627 | On graphical displays, this function does not itself make the new | |
628 | frame the selected frame. However, the window system may select | |
629 | the new frame according to its own rules." | |
64c669bc | 630 | (interactive) |
b6660415 | 631 | (let* ((w (cond |
6ed8eeff KL |
632 | ((assq 'terminal parameters) |
633 | (let ((type (terminal-live-p (cdr (assq 'terminal parameters))))) | |
b6660415 KL |
634 | (cond |
635 | ((eq type t) nil) | |
cb01ce3f SM |
636 | ((eq type nil) (error "Terminal %s does not exist" |
637 | (cdr (assq 'terminal parameters)))) | |
b6660415 KL |
638 | (t type)))) |
639 | ((assq 'window-system parameters) | |
640 | (cdr (assq 'window-system parameters))) | |
641 | (t window-system))) | |
2246281f | 642 | (frame-creation-function (cdr (assq w frame-creation-function-alist))) |
da8e8fc1 | 643 | (oldframe (selected-frame)) |
c1ef4455 | 644 | (params parameters) |
2246281f KL |
645 | frame) |
646 | (unless frame-creation-function | |
647 | (error "Don't know how to create a frame on window system %s" w)) | |
c1ef4455 CY |
648 | ;; Add parameters from `window-system-default-frame-alist'. |
649 | (dolist (p (cdr (assq w window-system-default-frame-alist))) | |
21bd02a6 | 650 | (unless (assq (car p) params) |
c1ef4455 CY |
651 | (push p params))) |
652 | ;; Add parameters from `default-frame-alist'. | |
653 | (dolist (p default-frame-alist) | |
21bd02a6 | 654 | (unless (assq (car p) params) |
c1ef4455 CY |
655 | (push p params))) |
656 | ;; Now make the frame. | |
2246281f | 657 | (run-hooks 'before-make-frame-hook) |
c1ef4455 | 658 | (setq frame (funcall frame-creation-function params)) |
30a2fded | 659 | (normal-erase-is-backspace-setup-frame frame) |
ab6198b2 SM |
660 | ;; Inherit the original frame's parameters. |
661 | (dolist (param frame-inherited-parameters) | |
662 | (unless (assq param parameters) ;Overridden by explicit parameters. | |
663 | (let ((val (frame-parameter oldframe param))) | |
664 | (when val (set-frame-parameter frame param val))))) | |
45c4fdeb SM |
665 | (run-hook-with-args 'after-make-frame-functions frame) |
666 | frame)) | |
64c669bc | 667 | |
7eadab74 JB |
668 | (defun filtered-frame-list (predicate) |
669 | "Return a list of all live frames which satisfy PREDICATE." | |
047bc928 GM |
670 | (let* ((frames (frame-list)) |
671 | (list frames)) | |
7eadab74 | 672 | (while (consp frames) |
047bc928 GM |
673 | (unless (funcall predicate (car frames)) |
674 | (setcar frames nil)) | |
7eadab74 | 675 | (setq frames (cdr frames))) |
047bc928 | 676 | (delq nil list))) |
7eadab74 JB |
677 | |
678 | (defun minibuffer-frame-list () | |
679 | "Return a list of all frames with their own minibuffers." | |
680 | (filtered-frame-list | |
b7de6024 SM |
681 | (lambda (frame) |
682 | (eq frame (window-frame (minibuffer-window frame)))))) | |
7eadab74 | 683 | |
371fed4e SM |
684 | ;; Used to be called `terminal-id' in termdev.el. |
685 | (defun get-device-terminal (device) | |
686 | "Return the terminal corresponding to DEVICE. | |
687 | DEVICE can be a terminal, a frame, nil (meaning the selected frame's terminal), | |
688 | the name of an X display device (HOST.SERVER.SCREEN) or a tty device file." | |
689 | (cond | |
690 | ((or (null device) (framep device)) | |
691 | (frame-terminal device)) | |
692 | ((stringp device) | |
693 | (let ((f (car (filtered-frame-list | |
694 | (lambda (frame) | |
695 | (or (equal (frame-parameter frame 'display) device) | |
696 | (equal (frame-parameter frame 'tty) device))))))) | |
697 | (or f (error "Display %s does not exist" device)) | |
698 | (frame-terminal f))) | |
699 | ((terminal-live-p device) device) | |
700 | (t | |
701 | (error "Invalid argument %s in `get-device-terminal'" device)))) | |
702 | ||
703 | (defun frames-on-display-list (&optional device) | |
704 | "Return a list of all frames on DEVICE. | |
705 | ||
706 | DEVICE should be a terminal, a frame, | |
707 | or a name of an X display or tty (a string of the form | |
9684e4c9 | 708 | HOST:SERVER.SCREEN). |
b6660415 | 709 | |
371fed4e | 710 | If DEVICE is omitted or nil, it defaults to the selected |
9684e4c9 | 711 | frame's terminal device." |
371fed4e | 712 | (let* ((terminal (get-device-terminal device)) |
047bc928 | 713 | (func #'(lambda (frame) |
6ed8eeff | 714 | (eq (frame-terminal frame) terminal)))) |
9911648b EZ |
715 | (filtered-frame-list func))) |
716 | ||
f35ca2fe KL |
717 | (defun framep-on-display (&optional terminal) |
718 | "Return the type of frames on TERMINAL. | |
719 | TERMINAL may be a terminal id, a display name or a frame. If it | |
720 | is a frame, its type is returned. If TERMINAL is omitted or nil, | |
721 | it defaults to the selected frame's terminal device. All frames | |
722 | on a given display are of the same type." | |
6ed8eeff | 723 | (or (terminal-live-p terminal) |
f35ca2fe KL |
724 | (framep terminal) |
725 | (framep (car (frames-on-display-list terminal))))) | |
9911648b | 726 | |
58bf6042 JB |
727 | (defun frame-remove-geometry-params (param-list) |
728 | "Return the parameter list PARAM-LIST, but with geometry specs removed. | |
729 | This deletes all bindings in PARAM-LIST for `top', `left', `width', | |
791e09d8 | 730 | `height', `user-size' and `user-position' parameters. |
58bf6042 JB |
731 | Emacs uses this to avoid overriding explicit moves and resizings from |
732 | the user during startup." | |
733 | (setq param-list (cons nil param-list)) | |
734 | (let ((tail param-list)) | |
735 | (while (consp (cdr tail)) | |
736 | (if (and (consp (car (cdr tail))) | |
791e09d8 RS |
737 | (memq (car (car (cdr tail))) |
738 | '(height width top left user-position user-size))) | |
739 | (progn | |
740 | (setq frame-initial-geometry-arguments | |
741 | (cons (car (cdr tail)) frame-initial-geometry-arguments)) | |
742 | (setcdr tail (cdr (cdr tail)))) | |
58bf6042 | 743 | (setq tail (cdr tail))))) |
e11c3dc2 KH |
744 | (setq frame-initial-geometry-arguments |
745 | (nreverse frame-initial-geometry-arguments)) | |
58bf6042 JB |
746 | (cdr param-list)) |
747 | ||
aa360da1 GM |
748 | (declare-function x-focus-frame "xfns.c" (frame)) |
749 | ||
be39b8cc | 750 | (defun select-frame-set-input-focus (frame &optional norecord) |
bbca16d8 | 751 | "Select FRAME, raise it, and set input focus, if possible. |
e343066f | 752 | If `mouse-autoselect-window' is non-nil, also move mouse pointer |
bbca16d8 | 753 | to FRAME's selected window. Otherwise, if `focus-follows-mouse' |
be39b8cc MR |
754 | is non-nil, move mouse cursor to FRAME. |
755 | ||
756 | Optional argument NORECORD means to neither change the order of | |
757 | recently selected windows nor the buffer list." | |
758 | (select-frame frame norecord) | |
b0c7121c | 759 | (raise-frame frame) |
bbca16d8 | 760 | ;; Ensure, if possible, that FRAME gets input focus. |
b0c7121c MR |
761 | (when (memq (window-system frame) '(x w32 ns)) |
762 | (x-focus-frame frame)) | |
bbca16d8 MR |
763 | ;; Move mouse cursor if necessary. |
764 | (cond | |
765 | (mouse-autoselect-window | |
766 | (let ((edges (window-inside-edges (frame-selected-window frame)))) | |
767 | ;; Move mouse cursor into FRAME's selected window to avoid that | |
768 | ;; Emacs mouse-autoselects another window. | |
769 | (set-mouse-position frame (nth 2 edges) (nth 1 edges)))) | |
770 | (focus-follows-mouse | |
771 | ;; Move mouse cursor into FRAME to avoid that another frame gets | |
772 | ;; selected by the window manager. | |
773 | (set-mouse-position frame (1- (frame-width frame)) 0)))) | |
030f4537 | 774 | |
ceab6935 | 775 | (defun other-frame (arg) |
c2c93894 | 776 | "Select the ARGth different visible frame on current display, and raise it. |
ceab6935 RM |
777 | All frames are arranged in a cyclic order. |
778 | This command selects the frame ARG steps away in that order. | |
bb578a72 RS |
779 | A negative ARG moves in the opposite order. |
780 | ||
781 | To make this command work properly, you must tell Emacs | |
782 | how the system (or the window manager) generally handles | |
783 | focus-switching between windows. If moving the mouse onto a window | |
784 | selects it (gives it focus), set `focus-follows-mouse' to t. | |
785 | Otherwise, that variable should be nil." | |
ceab6935 RM |
786 | (interactive "p") |
787 | (let ((frame (selected-frame))) | |
788 | (while (> arg 0) | |
a569dbc3 RM |
789 | (setq frame (next-frame frame)) |
790 | (while (not (eq (frame-visible-p frame) t)) | |
791 | (setq frame (next-frame frame))) | |
792 | (setq arg (1- arg))) | |
ceab6935 | 793 | (while (< arg 0) |
a569dbc3 RM |
794 | (setq frame (previous-frame frame)) |
795 | (while (not (eq (frame-visible-p frame) t)) | |
796 | (setq frame (previous-frame frame))) | |
915cfd1f | 797 | (setq arg (1+ arg))) |
030f4537 | 798 | (select-frame-set-input-focus frame))) |
845cde06 | 799 | |
3db7df06 SM |
800 | (defun iconify-or-deiconify-frame () |
801 | "Iconify the selected frame, or deiconify if it's currently an icon." | |
802 | (interactive) | |
803 | (if (eq (cdr (assq 'visibility (frame-parameters))) t) | |
804 | (iconify-frame) | |
805 | (make-frame-visible))) | |
806 | ||
0b0d3e0b KL |
807 | (defun suspend-frame () |
808 | "Do whatever is right to suspend the current frame. | |
f35ca2fe KL |
809 | Calls `suspend-emacs' if invoked from the controlling tty device, |
810 | `suspend-tty' from a secondary tty device, and | |
0b0d3e0b KL |
811 | `iconify-or-deiconify-frame' from an X frame." |
812 | (interactive) | |
813 | (let ((type (framep (selected-frame)))) | |
814 | (cond | |
edfda783 | 815 | ((memq type '(x ns w32)) (iconify-or-deiconify-frame)) |
0b0d3e0b | 816 | ((eq type t) |
6ed8eeff | 817 | (if (controlling-tty-p) |
4a933ef8 KL |
818 | (suspend-emacs) |
819 | (suspend-tty))) | |
0b0d3e0b KL |
820 | (t (suspend-emacs))))) |
821 | ||
845cde06 | 822 | (defun make-frame-names-alist () |
e2c3f530 | 823 | ;; Only consider the frames on the same display. |
845cde06 EZ |
824 | (let* ((current-frame (selected-frame)) |
825 | (falist | |
826 | (cons | |
827 | (cons (frame-parameter current-frame 'name) current-frame) nil)) | |
e2c3f530 | 828 | (frame (next-frame nil 0))) |
845cde06 EZ |
829 | (while (not (eq frame current-frame)) |
830 | (progn | |
e2c3f530 SM |
831 | (push (cons (frame-parameter frame 'name) frame) falist) |
832 | (setq frame (next-frame frame 0)))) | |
845cde06 EZ |
833 | falist)) |
834 | ||
835 | (defvar frame-name-history nil) | |
845cde06 | 836 | (defun select-frame-by-name (name) |
563283b1 | 837 | "Select the frame on the current terminal whose name is NAME and raise it. |
845cde06 EZ |
838 | If there is no frame by that name, signal an error." |
839 | (interactive | |
716ff1c9 RS |
840 | (let* ((frame-names-alist (make-frame-names-alist)) |
841 | (default (car (car frame-names-alist))) | |
842 | (input (completing-read | |
843 | (format "Select Frame (default %s): " default) | |
844 | frame-names-alist nil t nil 'frame-name-history))) | |
845cde06 EZ |
845 | (if (= (length input) 0) |
846 | (list default) | |
847 | (list input)))) | |
716ff1c9 RS |
848 | (let* ((frame-names-alist (make-frame-names-alist)) |
849 | (frame (cdr (assoc name frame-names-alist)))) | |
bbca16d8 MR |
850 | (if frame |
851 | (select-frame-set-input-focus frame) | |
852 | (error "There is no frame named `%s'" name)))) | |
1485f4c0 CY |
853 | |
854 | \f | |
855 | ;;;; Background mode. | |
856 | ||
857 | (defcustom frame-background-mode nil | |
858 | "The brightness of the background. | |
859 | Set this to the symbol `dark' if your background color is dark, | |
860 | `light' if your background is light, or nil (automatic by default) | |
861 | if you want Emacs to examine the brightness for you. Don't set this | |
862 | variable with `setq'; this won't have the expected effect." | |
863 | :group 'faces | |
864 | :set #'(lambda (var value) | |
865 | (set-default var value) | |
866 | (mapc 'frame-set-background-mode (frame-list))) | |
867 | :initialize 'custom-initialize-changed | |
868 | :type '(choice (const dark) | |
869 | (const light) | |
870 | (const :tag "automatic" nil))) | |
871 | ||
872 | (declare-function x-get-resource "frame.c" | |
873 | (attribute class &optional component subclass)) | |
874 | ||
875 | (defvar inhibit-frame-set-background-mode nil) | |
876 | ||
877 | (defun frame-set-background-mode (frame &optional keep-face-specs) | |
878 | "Set up display-dependent faces on FRAME. | |
879 | Display-dependent faces are those which have different definitions | |
880 | according to the `background-mode' and `display-type' frame parameters. | |
881 | ||
882 | If optional arg KEEP-FACE-SPECS is non-nil, don't recalculate | |
883 | face specs for the new background mode." | |
884 | (unless inhibit-frame-set-background-mode | |
885 | (let* ((frame-default-bg-mode (frame-terminal-default-bg-mode frame)) | |
886 | (bg-color (frame-parameter frame 'background-color)) | |
887 | (tty-type (tty-type frame)) | |
888 | (default-bg-mode | |
889 | (if (or (window-system frame) | |
890 | (and tty-type | |
891 | (string-match "^\\(xterm\\|\\rxvt\\|dtterm\\|eterm\\)" | |
892 | tty-type))) | |
893 | 'light | |
894 | 'dark)) | |
895 | (non-default-bg-mode (if (eq default-bg-mode 'light) 'dark 'light)) | |
896 | (bg-mode | |
897 | (cond (frame-default-bg-mode) | |
898 | ((equal bg-color "unspecified-fg") ; inverted colors | |
899 | non-default-bg-mode) | |
900 | ((not (color-values bg-color frame)) | |
901 | default-bg-mode) | |
902 | ((>= (apply '+ (color-values bg-color frame)) | |
903 | ;; Just looking at the screen, colors whose | |
904 | ;; values add up to .6 of the white total | |
905 | ;; still look dark to me. | |
906 | (* (apply '+ (color-values "white" frame)) .6)) | |
907 | 'light) | |
908 | (t 'dark))) | |
909 | (display-type | |
910 | (cond ((null (window-system frame)) | |
911 | (if (tty-display-color-p frame) 'color 'mono)) | |
912 | ((display-color-p frame) | |
913 | 'color) | |
914 | ((x-display-grayscale-p frame) | |
915 | 'grayscale) | |
916 | (t 'mono))) | |
917 | (old-bg-mode | |
918 | (frame-parameter frame 'background-mode)) | |
919 | (old-display-type | |
920 | (frame-parameter frame 'display-type))) | |
921 | ||
922 | (unless (and (eq bg-mode old-bg-mode) (eq display-type old-display-type)) | |
923 | (let ((locally-modified-faces nil) | |
924 | ;; Prevent face-spec-recalc from calling this function | |
925 | ;; again, resulting in a loop (bug#911). | |
926 | (inhibit-frame-set-background-mode t) | |
927 | (params (list (cons 'background-mode bg-mode) | |
928 | (cons 'display-type display-type)))) | |
929 | (if keep-face-specs | |
930 | (modify-frame-parameters frame params) | |
931 | ;; If we are recomputing face specs, first collect a list | |
932 | ;; of faces that don't match their face-specs. These are | |
933 | ;; the faces modified on FRAME, and we avoid changing them | |
934 | ;; below. Use a negative list to avoid consing (we assume | |
935 | ;; most faces are unmodified). | |
936 | (dolist (face (face-list)) | |
937 | (and (not (get face 'face-override-spec)) | |
938 | (not (face-spec-match-p face | |
939 | (face-user-default-spec face) | |
940 | (selected-frame))) | |
941 | (push face locally-modified-faces))) | |
942 | ;; Now change to the new frame parameters | |
943 | (modify-frame-parameters frame params) | |
944 | ;; For all unmodified named faces, choose face specs | |
945 | ;; matching the new frame parameters. | |
946 | (dolist (face (face-list)) | |
947 | (unless (memq face locally-modified-faces) | |
948 | (face-spec-recalc face frame))))))))) | |
949 | ||
950 | (defun frame-terminal-default-bg-mode (frame) | |
951 | "Return the default background mode of FRAME. | |
952 | This checks the `frame-background-mode' variable, the X resource | |
953 | named \"backgroundMode\" (if FRAME is an X frame), and finally | |
954 | the `background-mode' terminal parameter." | |
955 | (or frame-background-mode | |
956 | (let ((bg-resource | |
957 | (and (window-system frame) | |
958 | (x-get-resource "backgroundMode" "BackgroundMode")))) | |
959 | (if bg-resource | |
960 | (intern (downcase bg-resource)))) | |
961 | (terminal-parameter frame 'background-mode))) | |
962 | ||
64c669bc | 963 | \f |
dc6d9681 JB |
964 | ;;;; Frame configurations |
965 | ||
966 | (defun current-frame-configuration () | |
967 | "Return a list describing the positions and states of all frames. | |
376a7584 JB |
968 | Its car is `frame-configuration'. |
969 | Each element of the cdr is a list of the form (FRAME ALIST WINDOW-CONFIG), | |
970 | where | |
971 | FRAME is a frame object, | |
972 | ALIST is an association list specifying some of FRAME's parameters, and | |
973 | WINDOW-CONFIG is a window configuration object for FRAME." | |
974 | (cons 'frame-configuration | |
b7de6024 SM |
975 | (mapcar (lambda (frame) |
976 | (list frame | |
977 | (frame-parameters frame) | |
978 | (current-window-configuration frame))) | |
376a7584 | 979 | (frame-list)))) |
dc6d9681 | 980 | |
68cd265f | 981 | (defun set-frame-configuration (configuration &optional nodelete) |
dc6d9681 JB |
982 | "Restore the frames to the state described by CONFIGURATION. |
983 | Each frame listed in CONFIGURATION has its position, size, window | |
68cd265f | 984 | configuration, and other parameters set as specified in CONFIGURATION. |
d398de43 LT |
985 | However, this function does not restore deleted frames. |
986 | ||
a78db71c RS |
987 | Ordinarily, this function deletes all existing frames not |
988 | listed in CONFIGURATION. But if optional second argument NODELETE | |
5da841d2 | 989 | is given and non-nil, the unwanted frames are iconified instead." |
376a7584 JB |
990 | (or (frame-configuration-p configuration) |
991 | (signal 'wrong-type-argument | |
992 | (list 'frame-configuration-p configuration))) | |
993 | (let ((config-alist (cdr configuration)) | |
994 | frames-to-delete) | |
b7de6024 SM |
995 | (dolist (frame (frame-list)) |
996 | (let ((parameters (assq frame config-alist))) | |
997 | (if parameters | |
998 | (progn | |
999 | (modify-frame-parameters | |
1000 | frame | |
1001 | ;; Since we can't set a frame's minibuffer status, | |
1002 | ;; we might as well omit the parameter altogether. | |
1003 | (let* ((parms (nth 1 parameters)) | |
b2529d56 MB |
1004 | (mini (assq 'minibuffer parms)) |
1005 | (name (assq 'name parms)) | |
1006 | (explicit-name (cdr (assq 'explicit-name parms)))) | |
1007 | (when mini (setq parms (delq mini parms))) | |
1008 | ;; Leave name in iff it was set explicitly. | |
1009 | ;; This should fix the behavior reported in | |
1010 | ;; http://lists.gnu.org/archive/html/emacs-devel/2007-08/msg01632.html | |
1011 | (when (and name (not explicit-name)) | |
1012 | (setq parms (delq name parms))) | |
b7de6024 SM |
1013 | parms)) |
1014 | (set-window-configuration (nth 2 parameters))) | |
1015 | (setq frames-to-delete (cons frame frames-to-delete))))) | |
1016 | (mapc (if nodelete | |
1017 | ;; Note: making frames invisible here was tried | |
1018 | ;; but led to some strange behavior--each time the frame | |
1019 | ;; was made visible again, the window manager asked afresh | |
1020 | ;; for where to put it. | |
1021 | 'iconify-frame | |
1022 | 'delete-frame) | |
1023 | frames-to-delete))) | |
64c669bc | 1024 | \f |
dc6d9681 JB |
1025 | ;;;; Convenience functions for accessing and interactively changing |
1026 | ;;;; frame parameters. | |
64c669bc | 1027 | |
151bdc83 | 1028 | (defun frame-height (&optional frame) |
dc6d9681 | 1029 | "Return number of lines available for display on FRAME. |
4619ff5e GM |
1030 | If FRAME is omitted, describe the currently selected frame. |
1031 | Exactly what is included in the return value depends on the | |
1032 | window-system and toolkit in use - see `frame-pixel-height' for | |
1033 | more details. The lines are in units of the default font height. | |
1034 | ||
1035 | The result is roughly related to the frame pixel height via | |
1036 | height in pixels = height in lines * `frame-char-height'. | |
1037 | However, this is only approximate, and is complicated e.g. by the | |
1038 | fact that individual window lines and menu bar lines can have | |
1039 | differing font heights." | |
151bdc83 | 1040 | (cdr (assq 'height (frame-parameters frame)))) |
dc6d9681 JB |
1041 | |
1042 | (defun frame-width (&optional frame) | |
1043 | "Return number of columns available for display on FRAME. | |
1044 | If FRAME is omitted, describe the currently selected frame." | |
151bdc83 | 1045 | (cdr (assq 'width (frame-parameters frame)))) |
dc6d9681 | 1046 | |
aa360da1 GM |
1047 | (declare-function x-list-fonts "xfaces.c" |
1048 | (pattern &optional face frame maximum width)) | |
1049 | ||
52ef9375 | 1050 | (define-obsolete-function-alias 'set-default-font 'set-frame-font "23.1") |
1cef6541 | 1051 | (defun set-frame-font (font-name &optional keep-size) |
40d34803 | 1052 | "Set the font of the selected frame to FONT-NAME. |
61298010 | 1053 | When called interactively, prompt for the name of the font to use. |
1cef6541 JB |
1054 | To get the frame's current default font, use `frame-parameters'. |
1055 | ||
1056 | The default behavior is to keep the numbers of lines and columns in | |
84ed1560 | 1057 | the frame, thus may change its pixel size. If optional KEEP-SIZE is |
1cef6541 JB |
1058 | non-nil (interactively, prefix argument) the current frame size (in |
1059 | pixels) is kept by adjusting the numbers of the lines and columns." | |
f39784dd | 1060 | (interactive |
1cef6541 JB |
1061 | (let* ((completion-ignore-case t) |
1062 | (font (completing-read "Font name: " | |
1cef6541 JB |
1063 | ;; x-list-fonts will fail with an error |
1064 | ;; if this frame doesn't support fonts. | |
b7de6024 SM |
1065 | (x-list-fonts "*" nil (selected-frame)) |
1066 | nil nil nil nil | |
1067 | (frame-parameter nil 'font)))) | |
1cef6541 JB |
1068 | (list font current-prefix-arg))) |
1069 | (let (fht fwd) | |
1070 | (if keep-size | |
1071 | (setq fht (* (frame-parameter nil 'height) (frame-char-height)) | |
1072 | fwd (* (frame-parameter nil 'width) (frame-char-width)))) | |
1073 | (modify-frame-parameters (selected-frame) | |
1074 | (list (cons 'font font-name))) | |
1075 | (if keep-size | |
1076 | (modify-frame-parameters | |
1077 | (selected-frame) | |
1078 | (list (cons 'height (round fht (frame-char-height))) | |
1079 | (cons 'width (round fwd (frame-char-width))))))) | |
72bf1a8b | 1080 | (run-hooks 'after-setting-font-hook 'after-setting-font-hooks)) |
64c669bc | 1081 | |
7e573c4a | 1082 | (defun set-frame-parameter (frame parameter value) |
0dac35b8 KL |
1083 | "Set frame parameter PARAMETER to VALUE on FRAME. |
1084 | If FRAME is nil, it defaults to the selected frame. | |
c2c93894 | 1085 | See `modify-frame-parameters'." |
7e573c4a SM |
1086 | (modify-frame-parameters frame (list (cons parameter value)))) |
1087 | ||
8290babd | 1088 | (defun set-background-color (color-name) |
40d34803 | 1089 | "Set the background color of the selected frame to COLOR-NAME. |
61298010 RS |
1090 | When called interactively, prompt for the name of the color to use. |
1091 | To get the frame's current background color, use `frame-parameters'." | |
9317e499 | 1092 | (interactive (list (read-color "Background color: "))) |
dc6d9681 | 1093 | (modify-frame-parameters (selected-frame) |
528e1416 EZ |
1094 | (list (cons 'background-color color-name))) |
1095 | (or window-system | |
1096 | (face-set-after-frame-default (selected-frame)))) | |
64c669bc | 1097 | |
8290babd | 1098 | (defun set-foreground-color (color-name) |
40d34803 | 1099 | "Set the foreground color of the selected frame to COLOR-NAME. |
61298010 RS |
1100 | When called interactively, prompt for the name of the color to use. |
1101 | To get the frame's current foreground color, use `frame-parameters'." | |
9317e499 | 1102 | (interactive (list (read-color "Foreground color: "))) |
dc6d9681 | 1103 | (modify-frame-parameters (selected-frame) |
528e1416 EZ |
1104 | (list (cons 'foreground-color color-name))) |
1105 | (or window-system | |
1106 | (face-set-after-frame-default (selected-frame)))) | |
64c669bc JB |
1107 | |
1108 | (defun set-cursor-color (color-name) | |
40d34803 | 1109 | "Set the text cursor color of the selected frame to COLOR-NAME. |
61298010 RS |
1110 | When called interactively, prompt for the name of the color to use. |
1111 | To get the frame's current cursor color, use `frame-parameters'." | |
9317e499 | 1112 | (interactive (list (read-color "Cursor color: "))) |
dc6d9681 | 1113 | (modify-frame-parameters (selected-frame) |
7eadab74 | 1114 | (list (cons 'cursor-color color-name)))) |
64c669bc | 1115 | |
eaa974e1 | 1116 | (defun set-mouse-color (color-name) |
40d34803 | 1117 | "Set the color of the mouse pointer of the selected frame to COLOR-NAME. |
61298010 RS |
1118 | When called interactively, prompt for the name of the color to use. |
1119 | To get the frame's current mouse color, use `frame-parameters'." | |
9317e499 | 1120 | (interactive (list (read-color "Mouse color: "))) |
dc6d9681 | 1121 | (modify-frame-parameters (selected-frame) |
ec6d4463 KH |
1122 | (list (cons 'mouse-color |
1123 | (or color-name | |
1124 | (cdr (assq 'mouse-color | |
1125 | (frame-parameters)))))))) | |
7eadab74 | 1126 | |
eaa974e1 | 1127 | (defun set-border-color (color-name) |
40d34803 | 1128 | "Set the color of the border of the selected frame to COLOR-NAME. |
61298010 RS |
1129 | When called interactively, prompt for the name of the color to use. |
1130 | To get the frame's current border color, use `frame-parameters'." | |
9317e499 | 1131 | (interactive (list (read-color "Border color: "))) |
eaa974e1 JB |
1132 | (modify-frame-parameters (selected-frame) |
1133 | (list (cons 'border-color color-name)))) | |
1134 | ||
f44379e7 | 1135 | (define-minor-mode auto-raise-mode |
7eadab74 | 1136 | "Toggle whether or not the selected frame should auto-raise. |
6cda144f | 1137 | With ARG, turn auto-raise mode on if and only if ARG is positive. |
79e6ae33 RS |
1138 | Note that this controls Emacs's own auto-raise feature. |
1139 | Some window managers allow you to enable auto-raise for certain windows. | |
1140 | You can use that for Emacs windows if you wish, but if you do, | |
1141 | that is beyond the control of Emacs and this command has no effect on it." | |
f44379e7 SM |
1142 | :variable (frame-parameter nil 'auto-raise) |
1143 | (if (frame-parameter nil 'auto-raise) | |
1144 | (raise-frame))) | |
7eadab74 | 1145 | |
f44379e7 | 1146 | (define-minor-mode auto-lower-mode |
7eadab74 | 1147 | "Toggle whether or not the selected frame should auto-lower. |
6cda144f | 1148 | With ARG, turn auto-lower mode on if and only if ARG is positive. |
79e6ae33 RS |
1149 | Note that this controls Emacs's own auto-lower feature. |
1150 | Some window managers allow you to enable auto-lower for certain windows. | |
1151 | You can use that for Emacs windows if you wish, but if you do, | |
1152 | that is beyond the control of Emacs and this command has no effect on it." | |
f44379e7 SM |
1153 | :variable (frame-parameter nil 'auto-lower)) |
1154 | ||
7777d03b EZ |
1155 | (defun set-frame-name (name) |
1156 | "Set the name of the selected frame to NAME. | |
1157 | When called interactively, prompt for the name of the frame. | |
1158 | The frame name is displayed on the modeline if the terminal displays only | |
1159 | one frame, otherwise the name is displayed on the frame's caption bar." | |
1160 | (interactive "sFrame name: ") | |
1161 | (modify-frame-parameters (selected-frame) | |
1162 | (list (cons 'name name)))) | |
56cfea72 KS |
1163 | |
1164 | (defun frame-current-scroll-bars (&optional frame) | |
1165 | "Return the current scroll-bar settings in frame FRAME. | |
1cecf04d | 1166 | Value is a cons (VERTICAL . HORIZ0NTAL) where VERTICAL specifies the |
56cfea72 | 1167 | current location of the vertical scroll-bars (left, right, or nil), |
1cecf04d | 1168 | and HORIZONTAL specifies the current location of the horizontal scroll |
56cfea72 KS |
1169 | bars (top, bottom, or nil)." |
1170 | (let ((vert (frame-parameter frame 'vertical-scroll-bars)) | |
1171 | (hor nil)) | |
1172 | (unless (memq vert '(left right nil)) | |
1173 | (setq vert default-frame-scroll-bars)) | |
1174 | (cons vert hor))) | |
64c669bc | 1175 | \f |
9911648b | 1176 | ;;;; Frame/display capabilities. |
6ed8eeff KL |
1177 | (defun selected-terminal () |
1178 | "Return the terminal that is now selected." | |
1179 | (frame-terminal (selected-frame))) | |
b6660415 | 1180 | |
73e6adaa DN |
1181 | (declare-function msdos-mouse-p "dosfns.c") |
1182 | ||
9911648b EZ |
1183 | (defun display-mouse-p (&optional display) |
1184 | "Return non-nil if DISPLAY has a mouse available. | |
1185 | DISPLAY can be a display name, a frame, or nil (meaning the selected | |
1186 | frame's display)." | |
1187 | (let ((frame-type (framep-on-display display))) | |
1188 | (cond | |
1189 | ((eq frame-type 'pc) | |
1190 | (msdos-mouse-p)) | |
1191 | ((eq system-type 'windows-nt) | |
9fa5bb32 RS |
1192 | (with-no-warnings |
1193 | (> w32-num-mouse-buttons 0))) | |
9e2a2647 DN |
1194 | ((memq frame-type '(x ns)) |
1195 | t) ;; We assume X and NeXTstep *always* have a pointing device | |
9911648b | 1196 | (t |
7565ee93 DL |
1197 | (or (and (featurep 'xt-mouse) |
1198 | xterm-mouse-mode) | |
1199 | ;; t-mouse is distributed with the GPM package. It doesn't have | |
1200 | ;; a toggle. | |
1201 | (featurep 't-mouse)))))) | |
9911648b EZ |
1202 | |
1203 | (defun display-popup-menus-p (&optional display) | |
1204 | "Return non-nil if popup menus are supported on DISPLAY. | |
1205 | DISPLAY can be a display name, a frame, or nil (meaning the selected | |
1206 | frame's display). | |
1207 | Support for popup menus requires that the mouse be available." | |
1208 | (and | |
1209 | (let ((frame-type (framep-on-display display))) | |
9e2a2647 | 1210 | (memq frame-type '(x w32 pc ns))) |
9911648b EZ |
1211 | (display-mouse-p display))) |
1212 | ||
1213 | (defun display-graphic-p (&optional display) | |
1214 | "Return non-nil if DISPLAY is a graphic display. | |
1215 | Graphical displays are those which are capable of displaying several | |
1216 | frames and several different fonts at once. This is true for displays | |
1217 | that use a window system such as X, and false for text-only terminals. | |
1218 | DISPLAY can be a display name, a frame, or nil (meaning the selected | |
1219 | frame's display)." | |
9e2a2647 | 1220 | (not (null (memq (framep-on-display display) '(x w32 ns))))) |
9911648b | 1221 | |
ddc456e4 EZ |
1222 | (defun display-images-p (&optional display) |
1223 | "Return non-nil if DISPLAY can display images. | |
1224 | ||
1225 | DISPLAY can be a display name, a frame, or nil (meaning the selected | |
1226 | frame's display)." | |
1227 | (and (display-graphic-p display) | |
1228 | (fboundp 'image-mask-p) | |
fcc6f5cc | 1229 | (fboundp 'image-size))) |
ddc456e4 | 1230 | |
6693b279 EZ |
1231 | (defalias 'display-multi-frame-p 'display-graphic-p) |
1232 | (defalias 'display-multi-font-p 'display-graphic-p) | |
1233 | ||
9911648b EZ |
1234 | (defun display-selections-p (&optional display) |
1235 | "Return non-nil if DISPLAY supports selections. | |
1236 | A selection is a way to transfer text or other data between programs | |
45240125 | 1237 | via special system buffers called `selection' or `clipboard'. |
9911648b EZ |
1238 | DISPLAY can be a display name, a frame, or nil (meaning the selected |
1239 | frame's display)." | |
1240 | (let ((frame-type (framep-on-display display))) | |
1241 | (cond | |
1242 | ((eq frame-type 'pc) | |
1243 | ;; MS-DOG frames support selections when Emacs runs inside | |
1244 | ;; the Windows' DOS Box. | |
9fa5bb32 RS |
1245 | (with-no-warnings |
1246 | (not (null dos-windows-version)))) | |
9e2a2647 | 1247 | ((memq frame-type '(x w32 ns)) |
9911648b EZ |
1248 | t) ;; FIXME? |
1249 | (t | |
1250 | nil)))) | |
1251 | ||
aa360da1 GM |
1252 | (declare-function x-display-screens "xfns.c" (&optional terminal)) |
1253 | ||
9911648b EZ |
1254 | (defun display-screens (&optional display) |
1255 | "Return the number of screens associated with DISPLAY." | |
1256 | (let ((frame-type (framep-on-display display))) | |
1257 | (cond | |
9e2a2647 | 1258 | ((memq frame-type '(x w32 ns)) |
9911648b | 1259 | (x-display-screens display)) |
bb9404d6 | 1260 | (t |
9911648b EZ |
1261 | 1)))) |
1262 | ||
aa360da1 GM |
1263 | (declare-function x-display-pixel-height "xfns.c" (&optional terminal)) |
1264 | ||
9911648b EZ |
1265 | (defun display-pixel-height (&optional display) |
1266 | "Return the height of DISPLAY's screen in pixels. | |
1267 | For character terminals, each character counts as a single pixel." | |
1268 | (let ((frame-type (framep-on-display display))) | |
1269 | (cond | |
9e2a2647 | 1270 | ((memq frame-type '(x w32 ns)) |
9911648b EZ |
1271 | (x-display-pixel-height display)) |
1272 | (t | |
1273 | (frame-height (if (framep display) display (selected-frame))))))) | |
1274 | ||
aa360da1 GM |
1275 | (declare-function x-display-pixel-width "xfns.c" (&optional terminal)) |
1276 | ||
9911648b EZ |
1277 | (defun display-pixel-width (&optional display) |
1278 | "Return the width of DISPLAY's screen in pixels. | |
1279 | For character terminals, each character counts as a single pixel." | |
1280 | (let ((frame-type (framep-on-display display))) | |
1281 | (cond | |
9e2a2647 | 1282 | ((memq frame-type '(x w32 ns)) |
9911648b EZ |
1283 | (x-display-pixel-width display)) |
1284 | (t | |
1285 | (frame-width (if (framep display) display (selected-frame))))))) | |
1286 | ||
51e39dfc KS |
1287 | (defcustom display-mm-dimensions-alist nil |
1288 | "Alist for specifying screen dimensions in millimeters. | |
1289 | The dimensions will be used for `display-mm-height' and | |
1290 | `display-mm-width' if defined for the respective display. | |
1291 | ||
1292 | Each element of the alist has the form (display . (width . height)), | |
1293 | e.g. (\":0.0\" . (287 . 215)). | |
1294 | ||
1295 | If `display' equals t, it specifies dimensions for all graphical | |
1296 | displays not explicitely specified." | |
1297 | :version "22.1" | |
1298 | :type '(alist :key-type (choice (string :tag "Display name") | |
1299 | (const :tag "Default" t)) | |
1300 | :value-type (cons :tag "Dimensions" | |
1301 | (integer :tag "Width") | |
1302 | (integer :tag "Height"))) | |
1303 | :group 'frames) | |
1304 | ||
aa360da1 GM |
1305 | (declare-function x-display-mm-height "xfns.c" (&optional terminal)) |
1306 | ||
9911648b EZ |
1307 | (defun display-mm-height (&optional display) |
1308 | "Return the height of DISPLAY's screen in millimeters. | |
d7cd2d8b | 1309 | System values can be overridden by `display-mm-dimensions-alist'. |
9911648b | 1310 | If the information is unavailable, value is nil." |
9e2a2647 | 1311 | (and (memq (framep-on-display display) '(x w32 ns)) |
51e39dfc KS |
1312 | (or (cddr (assoc (or display (frame-parameter nil 'display)) |
1313 | display-mm-dimensions-alist)) | |
1314 | (cddr (assoc t display-mm-dimensions-alist)) | |
1315 | (x-display-mm-height display)))) | |
9911648b | 1316 | |
aa360da1 GM |
1317 | (declare-function x-display-mm-width "xfns.c" (&optional terminal)) |
1318 | ||
9911648b EZ |
1319 | (defun display-mm-width (&optional display) |
1320 | "Return the width of DISPLAY's screen in millimeters. | |
d7cd2d8b | 1321 | System values can be overridden by `display-mm-dimensions-alist'. |
9911648b | 1322 | If the information is unavailable, value is nil." |
9e2a2647 | 1323 | (and (memq (framep-on-display display) '(x w32 ns)) |
51e39dfc KS |
1324 | (or (cadr (assoc (or display (frame-parameter nil 'display)) |
1325 | display-mm-dimensions-alist)) | |
1326 | (cadr (assoc t display-mm-dimensions-alist)) | |
1327 | (x-display-mm-width display)))) | |
9911648b | 1328 | |
aa360da1 GM |
1329 | (declare-function x-display-backing-store "xfns.c" (&optional terminal)) |
1330 | ||
9911648b EZ |
1331 | (defun display-backing-store (&optional display) |
1332 | "Return the backing store capability of DISPLAY's screen. | |
1333 | The value may be `always', `when-mapped', `not-useful', or nil if | |
1334 | the question is inapplicable to a certain kind of display." | |
1335 | (let ((frame-type (framep-on-display display))) | |
1336 | (cond | |
9e2a2647 | 1337 | ((memq frame-type '(x w32 ns)) |
9911648b EZ |
1338 | (x-display-backing-store display)) |
1339 | (t | |
1340 | 'not-useful)))) | |
1341 | ||
aa360da1 GM |
1342 | (declare-function x-display-save-under "xfns.c" (&optional terminal)) |
1343 | ||
9911648b EZ |
1344 | (defun display-save-under (&optional display) |
1345 | "Return non-nil if DISPLAY's screen supports the SaveUnder feature." | |
1346 | (let ((frame-type (framep-on-display display))) | |
1347 | (cond | |
9e2a2647 | 1348 | ((memq frame-type '(x w32 ns)) |
9911648b EZ |
1349 | (x-display-save-under display)) |
1350 | (t | |
1351 | 'not-useful)))) | |
1352 | ||
aa360da1 GM |
1353 | (declare-function x-display-planes "xfns.c" (&optional terminal)) |
1354 | ||
9911648b EZ |
1355 | (defun display-planes (&optional display) |
1356 | "Return the number of planes supported by DISPLAY." | |
1357 | (let ((frame-type (framep-on-display display))) | |
1358 | (cond | |
9e2a2647 | 1359 | ((memq frame-type '(x w32 ns)) |
9911648b EZ |
1360 | (x-display-planes display)) |
1361 | ((eq frame-type 'pc) | |
1362 | 4) | |
1363 | (t | |
1364 | (truncate (log (length (tty-color-alist)) 2)))))) | |
1365 | ||
aa360da1 GM |
1366 | (declare-function x-display-color-cells "xfns.c" (&optional terminal)) |
1367 | ||
9911648b EZ |
1368 | (defun display-color-cells (&optional display) |
1369 | "Return the number of color cells supported by DISPLAY." | |
1370 | (let ((frame-type (framep-on-display display))) | |
1371 | (cond | |
9e2a2647 | 1372 | ((memq frame-type '(x w32 ns)) |
9911648b EZ |
1373 | (x-display-color-cells display)) |
1374 | ((eq frame-type 'pc) | |
1375 | 16) | |
1376 | (t | |
3224dac1 | 1377 | (tty-display-color-cells display))))) |
9911648b | 1378 | |
aa360da1 GM |
1379 | (declare-function x-display-visual-class "xfns.c" (&optional terminal)) |
1380 | ||
9911648b | 1381 | (defun display-visual-class (&optional display) |
6cda144f | 1382 | "Return the visual class of DISPLAY. |
9911648b EZ |
1383 | The value is one of the symbols `static-gray', `gray-scale', |
1384 | `static-color', `pseudo-color', `true-color', or `direct-color'." | |
1385 | (let ((frame-type (framep-on-display display))) | |
1386 | (cond | |
9e2a2647 | 1387 | ((memq frame-type '(x w32 ns)) |
9911648b EZ |
1388 | (x-display-visual-class display)) |
1389 | ((and (memq frame-type '(pc t)) | |
1390 | (tty-display-color-p display)) | |
1391 | 'static-color) | |
1392 | (t | |
1393 | 'static-gray)))) | |
1394 | ||
1395 | \f | |
a32c1804 RS |
1396 | ;;;; Frame geometry values |
1397 | ||
1398 | (defun frame-geom-value-cons (type value &optional frame) | |
1399 | "Return equivalent geometry value for FRAME as a cons with car `+'. | |
1400 | A geometry value equivalent to VALUE for FRAME is returned, | |
1401 | where the value is a cons with car `+', not numeric. | |
1402 | TYPE is the car of the original geometry spec (TYPE . VALUE). | |
1403 | It is `top' or `left', depending on which edge VALUE is related to. | |
1404 | VALUE is the cdr of a frame geometry spec: (left/top . VALUE). | |
1405 | If VALUE is a number, then it is converted to a cons value, perhaps | |
1406 | relative to the opposite frame edge from that in the original spec. | |
1407 | FRAME defaults to the selected frame. | |
1408 | ||
1409 | Examples (measures in pixels) - | |
1410 | Assuming display height/width=1024, frame height/width=600: | |
1411 | 300 inside display edge: 300 => (+ 300) | |
1412 | (+ 300) => (+ 300) | |
1413 | 300 inside opposite display edge: (- 300) => (+ 124) | |
1414 | -300 => (+ 124) | |
1415 | 300 beyond display edge | |
1416 | (= 724 inside opposite display edge): (+ -300) => (+ -300) | |
1417 | 300 beyond display edge | |
1418 | (= 724 inside opposite display edge): (- -300) => (+ 724) | |
1419 | ||
1420 | In the 3rd, 4th, and 6th examples, the returned value is relative to | |
1421 | the opposite frame edge from the edge indicated in the input spec." | |
1422 | (cond ((and (consp value) (eq '+ (car value))) ; e.g. (+ 300), (+ -300) | |
1423 | value) | |
1424 | ((natnump value) (list '+ value)) ; e.g. 300 => (+ 300) | |
1425 | (t ; e.g. -300, (- 300), (- -300) | |
1426 | (list '+ (- (if (eq 'left type) ; => (+ 124), (+ 124), (+ 724) | |
1427 | (x-display-pixel-width) | |
1428 | (x-display-pixel-height)) | |
1429 | (if (integerp value) (- value) (cadr value)) | |
1430 | (if (eq 'left type) | |
1431 | (frame-pixel-width frame) | |
1432 | (frame-pixel-height frame))))))) | |
1433 | ||
1434 | (defun frame-geom-spec-cons (spec &optional frame) | |
1435 | "Return equivalent geometry spec for FRAME as a cons with car `+'. | |
1436 | A geometry specification equivalent to SPEC for FRAME is returned, | |
1437 | where the value is a cons with car `+', not numeric. | |
1438 | SPEC is a frame geometry spec: (left . VALUE) or (top . VALUE). | |
1439 | If VALUE is a number, then it is converted to a cons value, perhaps | |
1440 | relative to the opposite frame edge from that in the original spec. | |
1441 | FRAME defaults to the selected frame. | |
1442 | ||
1443 | Examples (measures in pixels) - | |
1444 | Assuming display height=1024, frame height=600: | |
1445 | top 300 below display top: (top . 300) => (top + 300) | |
1446 | (top + 300) => (top + 300) | |
1447 | bottom 300 above display bottom: (top - 300) => (top + 124) | |
1448 | (top . -300) => (top + 124) | |
1449 | top 300 above display top | |
1450 | (= bottom 724 above display bottom): (top + -300) => (top + -300) | |
1451 | bottom 300 below display bottom | |
1452 | (= top 724 below display top): (top - -300) => (top + 724) | |
1453 | ||
1454 | In the 3rd, 4th, and 6th examples, the returned value is relative to | |
1455 | the opposite frame edge from the edge indicated in the input spec." | |
06b60517 | 1456 | (cons (car spec) (frame-geom-value-cons (car spec) (cdr spec) frame))) |
a32c1804 | 1457 | \f |
9e2b097b | 1458 | |
154a757e | 1459 | (defun delete-other-frames (&optional frame) |
4a592f66 | 1460 | "Delete all frames on the current terminal, except FRAME. |
a2125918 GM |
1461 | If FRAME uses another frame's minibuffer, the minibuffer frame is |
1462 | left untouched. FRAME nil or omitted means use the selected frame." | |
154a757e GM |
1463 | (interactive) |
1464 | (unless frame | |
1465 | (setq frame (selected-frame))) | |
a2125918 GM |
1466 | (let* ((mini-frame (window-frame (minibuffer-window frame))) |
1467 | (frames (delq mini-frame (delq frame (frame-list))))) | |
5e5ae184 SM |
1468 | ;; Only consider frames on the same terminal. |
1469 | (dolist (frame (prog1 frames (setq frames nil))) | |
1470 | (if (eq (frame-terminal) (frame-terminal frame)) | |
1471 | (push frame frames))) | |
a2125918 GM |
1472 | ;; Delete mon-minibuffer-only frames first, because `delete-frame' |
1473 | ;; signals an error when trying to delete a mini-frame that's | |
1474 | ;; still in use by another frame. | |
1475 | (dolist (frame frames) | |
1476 | (unless (eq (frame-parameter frame 'minibuffer) 'only) | |
1477 | (delete-frame frame))) | |
1478 | ;; Delete minibuffer-only frames. | |
1479 | (dolist (frame frames) | |
1480 | (when (eq (frame-parameter frame 'minibuffer) 'only) | |
1481 | (delete-frame frame))))) | |
154a757e | 1482 | |
da7829a3 | 1483 | ;; miscellaneous obsolescence declarations |
84ed1560 JB |
1484 | (define-obsolete-variable-alias 'delete-frame-hook |
1485 | 'delete-frame-functions "22.1") | |
da7829a3 | 1486 | |
dc6d9681 | 1487 | \f |
7e573c4a | 1488 | ;; Highlighting trailing whitespace. |
81b99826 GM |
1489 | |
1490 | (make-variable-buffer-local 'show-trailing-whitespace) | |
1491 | ||
81b99826 | 1492 | \f |
7e573c4a | 1493 | ;; Scrolling |
79b14b94 GM |
1494 | |
1495 | (defgroup scrolling nil | |
1496 | "Scrolling windows." | |
1497 | :version "21.1" | |
1498 | :group 'frames) | |
1499 | ||
968ecc28 | 1500 | (defvaralias 'automatic-hscrolling 'auto-hscroll-mode) |
79b14b94 GM |
1501 | |
1502 | \f | |
7e573c4a | 1503 | ;; Blinking cursor |
81b99826 GM |
1504 | |
1505 | (defgroup cursor nil | |
ca693be8 | 1506 | "Displaying text cursors." |
40d34803 | 1507 | :version "21.1" |
81b99826 GM |
1508 | :group 'frames) |
1509 | ||
1510 | (defcustom blink-cursor-delay 0.5 | |
6cda144f | 1511 | "Seconds of idle time after which cursor starts to blink." |
81b99826 GM |
1512 | :type 'number |
1513 | :group 'cursor) | |
1514 | ||
1515 | (defcustom blink-cursor-interval 0.5 | |
6cda144f | 1516 | "Length of cursor blink interval in seconds." |
81b99826 GM |
1517 | :type 'number |
1518 | :group 'cursor) | |
1519 | ||
1520 | (defvar blink-cursor-idle-timer nil | |
ca693be8 GM |
1521 | "Timer started after `blink-cursor-delay' seconds of Emacs idle time. |
1522 | The function `blink-cursor-start' is called when the timer fires.") | |
81b99826 GM |
1523 | |
1524 | (defvar blink-cursor-timer nil | |
ca693be8 | 1525 | "Timer started from `blink-cursor-start'. |
a795e09a LT |
1526 | This timer calls `blink-cursor-timer-function' every |
1527 | `blink-cursor-interval' seconds.") | |
1528 | ||
81b99826 | 1529 | (defun blink-cursor-start () |
ca693be8 GM |
1530 | "Timer function called from the timer `blink-cursor-idle-timer'. |
1531 | This starts the timer `blink-cursor-timer', which makes the cursor blink | |
1532 | if appropriate. It also arranges to cancel that timer when the next | |
1533 | command starts, by installing a pre-command hook." | |
81b99826 | 1534 | (when (null blink-cursor-timer) |
f9ac92c5 CY |
1535 | ;; Set up the timer first, so that if this signals an error, |
1536 | ;; blink-cursor-end is not added to pre-command-hook. | |
81b99826 GM |
1537 | (setq blink-cursor-timer |
1538 | (run-with-timer blink-cursor-interval blink-cursor-interval | |
f9ac92c5 CY |
1539 | 'blink-cursor-timer-function)) |
1540 | (add-hook 'pre-command-hook 'blink-cursor-end) | |
1541 | (internal-show-cursor nil nil))) | |
0a5ebe4b GM |
1542 | |
1543 | (defun blink-cursor-timer-function () | |
1544 | "Timer function of timer `blink-cursor-timer'." | |
1545 | (internal-show-cursor nil (not (internal-show-cursor-p)))) | |
81b99826 GM |
1546 | |
1547 | (defun blink-cursor-end () | |
1548 | "Stop cursor blinking. | |
ca693be8 | 1549 | This is installed as a pre-command hook by `blink-cursor-start'. |
f39784dd | 1550 | When run, it cancels the timer `blink-cursor-timer' and removes |
ca693be8 | 1551 | itself as a pre-command hook." |
81b99826 | 1552 | (remove-hook 'pre-command-hook 'blink-cursor-end) |
0a5ebe4b | 1553 | (internal-show-cursor nil t) |
8ec94c16 SM |
1554 | (when blink-cursor-timer |
1555 | (cancel-timer blink-cursor-timer) | |
1556 | (setq blink-cursor-timer nil))) | |
81b99826 | 1557 | |
8ec94c16 SM |
1558 | (define-minor-mode blink-cursor-mode |
1559 | "Toggle blinking cursor mode. | |
4837b516 GM |
1560 | With a numeric argument, turn blinking cursor mode on if ARG is positive, |
1561 | otherwise turn it off. When blinking cursor mode is enabled, the | |
1562 | cursor of the selected window blinks. | |
81b99826 | 1563 | |
8ec94c16 SM |
1564 | Note that this command is effective only when Emacs |
1565 | displays through a window system, because then Emacs does its own | |
1566 | cursor display. On a text-only terminal, this is not implemented." | |
1567 | :init-value (not (or noninteractive | |
1568 | no-blinking-cursor | |
1569 | (eq system-type 'ms-dos) | |
0afb6242 | 1570 | (not (memq window-system '(x w32 ns))))) |
adba8116 | 1571 | :initialize 'custom-initialize-delay |
8ec94c16 SM |
1572 | :group 'cursor |
1573 | :global t | |
1574 | (if blink-cursor-idle-timer (cancel-timer blink-cursor-idle-timer)) | |
1575 | (setq blink-cursor-idle-timer nil) | |
1576 | (blink-cursor-end) | |
1577 | (when blink-cursor-mode | |
1578 | ;; Hide the cursor. | |
1579 | ;;(internal-show-cursor nil nil) | |
1580 | (setq blink-cursor-idle-timer | |
1581 | (run-with-idle-timer blink-cursor-delay | |
1582 | blink-cursor-delay | |
1583 | 'blink-cursor-start)))) | |
81b99826 | 1584 | |
8ec94c16 | 1585 | (define-obsolete-variable-alias 'blink-cursor 'blink-cursor-mode "22.1") |
f39784dd | 1586 | |
81b99826 | 1587 | \f |
64c669bc | 1588 | ;;;; Key bindings |
64c669bc | 1589 | |
6238bfaf | 1590 | (define-key ctl-x-5-map "2" 'make-frame-command) |
154a757e | 1591 | (define-key ctl-x-5-map "1" 'delete-other-frames) |
dc6d9681 | 1592 | (define-key ctl-x-5-map "0" 'delete-frame) |
ceab6935 | 1593 | (define-key ctl-x-5-map "o" 'other-frame) |
49116ac0 | 1594 | |
dc6d9681 | 1595 | (provide 'frame) |
c88ab9ce | 1596 | |
dc6d9681 | 1597 | ;;; frame.el ends here |