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dc6d9681 | 1 | ;;; frame.el --- multi-frame management independent of window systems. |
c88ab9ce | 2 | |
30e19aee | 3 | ;; Copyright (C) 1993, 1994, 1996, 1997 Free Software Foundation, Inc. |
3a801d0c | 4 | |
fc68affa | 5 | ;; Maintainer: FSF |
fd7fa35a | 6 | ;; Keywords: internal |
fc68affa | 7 | |
b578f267 EN |
8 | ;; This file is part of GNU Emacs. |
9 | ||
10 | ;; GNU Emacs is free software; you can redistribute it and/or modify | |
11 | ;; it under the terms of the GNU General Public License as published by | |
12 | ;; the Free Software Foundation; either version 2, or (at your option) | |
13 | ;; any later version. | |
14 | ||
15 | ;; GNU Emacs is distributed in the hope that it will be useful, | |
16 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | ;; GNU General Public License for more details. | |
19 | ||
20 | ;; You should have received a copy of the GNU General Public License | |
21 | ;; along with GNU Emacs; see the file COPYING. If not, write to the | |
22 | ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
23 | ;; Boston, MA 02111-1307, USA. | |
64c669bc | 24 | |
fc68affa ER |
25 | ;;; Code: |
26 | ||
dc6d9681 JB |
27 | (defvar frame-creation-function nil |
28 | "Window-system dependent function to call to create a new frame. | |
29 | The window system startup file should set this to its frame creation | |
64c669bc JB |
30 | function, which should take an alist of parameters as its argument.") |
31 | ||
216f1169 RS |
32 | ;;; The initial value given here for used to ask for a minibuffer. |
33 | ;;; But that's not necessary, because the default is to have one. | |
34 | ;;; By not specifying it here, we let an X resource specify it. | |
35 | (defvar initial-frame-alist nil | |
eaa974e1 JB |
36 | "Alist of frame parameters for creating the initial X window frame. |
37 | You can set this in your `.emacs' file; for example, | |
dc6d9681 | 38 | (setq initial-frame-alist '((top . 1) (left . 1) (width . 80) (height . 55))) |
de17da15 RS |
39 | Parameters specified here supersede the values given in `default-frame-alist'. |
40 | ||
41 | If the value calls for a frame without a minibuffer, and you have not created | |
42 | a minibuffer frame on your own, one is created according to | |
7eadab74 | 43 | `minibuffer-frame-alist'. |
de17da15 RS |
44 | |
45 | You can specify geometry-related options for just the initial frame | |
46 | by setting this variable in your `.emacs' file; however, they won't | |
85557d7e | 47 | take effect until Emacs reads `.emacs', which happens after first creating |
de17da15 RS |
48 | the frame. If you want the frame to have the proper geometry as soon |
49 | as it appears, you need to use this three-step process: | |
50 | * Specify X resources to give the geometry you want. | |
51 | * Set `default-frame-alist' to override these options so that they | |
52 | don't affect subsequent frames. | |
53 | * Set `initial-frame-alist' in a way that matches the X resources, | |
54 | to override what you put in `default-frame-alist'.") | |
64c669bc | 55 | |
7eadab74 | 56 | (defvar minibuffer-frame-alist '((width . 80) (height . 2)) |
eaa974e1 JB |
57 | "Alist of frame parameters for initially creating a minibuffer frame. |
58 | You can set this in your `.emacs' file; for example, | |
dc6d9681 | 59 | (setq minibuffer-frame-alist |
7eadab74 | 60 | '((top . 1) (left . 1) (width . 80) (height . 2))) |
eaa974e1 JB |
61 | Parameters specified here supersede the values given in |
62 | `default-frame-alist'.") | |
64c669bc | 63 | |
dc6d9681 | 64 | (defvar pop-up-frame-alist nil |
eaa974e1 | 65 | "Alist of frame parameters used when creating pop-up frames. |
dc6d9681 | 66 | Pop-up frames are used for completions, help, and the like. |
64c669bc | 67 | This variable can be set in your init file, like this: |
dc6d9681 | 68 | (setq pop-up-frame-alist '((width . 80) (height . 20))) |
eb8c3be9 | 69 | These supersede the values given in `default-frame-alist'.") |
64c669bc | 70 | |
dc6d9681 | 71 | (setq pop-up-frame-function |
64c669bc | 72 | (function (lambda () |
6eb018ba | 73 | (make-frame pop-up-frame-alist)))) |
64c669bc | 74 | |
30e19aee | 75 | (defcustom special-display-frame-alist |
8a9e86e6 RS |
76 | '((height . 14) (width . 80) (unsplittable . t)) |
77 | "*Alist of frame parameters used when creating special frames. | |
78 | Special frames are used for buffers whose names are in | |
79 | `special-display-buffer-names' and for buffers whose names match | |
80 | one of the regular expressions in `special-display-regexps'. | |
81 | This variable can be set in your init file, like this: | |
82 | (setq special-display-frame-alist '((width . 80) (height . 20))) | |
30e19aee RS |
83 | These supersede the values given in `default-frame-alist'." |
84 | :type '(repeat (cons :format "%v" | |
85 | (symbol :tag "Parameter") | |
86 | (sexp :tag "Value"))) | |
87 | :group 'frames) | |
8a9e86e6 RS |
88 | |
89 | ;; Display BUFFER in its own frame, reusing an existing window if any. | |
90 | ;; Return the window chosen. | |
91 | ;; Currently we do not insist on selecting the window within its frame. | |
95e6cf39 | 92 | ;; If ARGS is an alist, use it as a list of frame parameter specs. |
85557d7e | 93 | ;; If ARGS is a list whose car is a symbol, |
95e6cf39 RS |
94 | ;; use (car ARGS) as a function to do the work. |
95 | ;; Pass it BUFFER as first arg, and (cdr ARGS) gives the rest of the args. | |
96 | (defun special-display-popup-frame (buffer &optional args) | |
97 | (if (and args (symbolp (car args))) | |
98 | (apply (car args) buffer (cdr args)) | |
99 | (let ((window (get-buffer-window buffer t))) | |
100 | (if window | |
101 | ;; If we have a window already, make it visible. | |
102 | (let ((frame (window-frame window))) | |
103 | (make-frame-visible frame) | |
104 | (raise-frame frame) | |
105 | window) | |
106 | ;; If no window yet, make one in a new frame. | |
107 | (let ((frame (make-frame (append args special-display-frame-alist)))) | |
108 | (set-window-buffer (frame-selected-window frame) buffer) | |
109 | (set-window-dedicated-p (frame-selected-window frame) t) | |
110 | (frame-selected-window frame)))))) | |
8a9e86e6 | 111 | |
924be53a RS |
112 | ;; Handle delete-frame events from the X server. |
113 | (defun handle-delete-frame (event) | |
114 | (interactive "e") | |
115 | (let ((frame (posn-window (event-start event))) | |
116 | (i 0) | |
117 | (tail (frame-list))) | |
118 | (while tail | |
119 | (and (frame-visible-p (car tail)) | |
120 | (not (eq (car tail) frame)) | |
121 | (setq i (1+ i))) | |
122 | (setq tail (cdr tail))) | |
123 | (if (> i 0) | |
124 | (delete-frame frame t) | |
a9562d19 RS |
125 | ;; Gildea@x.org says it is ok to ask questions before terminating. |
126 | (save-buffers-kill-emacs)))) | |
64c669bc | 127 | \f |
dc6d9681 | 128 | ;;;; Arrangement of frames at startup |
64c669bc JB |
129 | |
130 | ;;; 1) Load the window system startup file from the lisp library and read the | |
131 | ;;; high-priority arguments (-q and the like). The window system startup | |
dc6d9681 | 132 | ;;; file should create any frames specified in the window system defaults. |
85557d7e | 133 | ;;; |
dc6d9681 | 134 | ;;; 2) If no frames have been opened, we open an initial text frame. |
64c669bc JB |
135 | ;;; |
136 | ;;; 3) Once the init file is done, we apply any newly set parameters | |
dc6d9681 | 137 | ;;; in initial-frame-alist to the frame. |
64c669bc | 138 | |
85557d7e | 139 | ;; These are now called explicitly at the proper times, |
fc4d4afb RS |
140 | ;; since that is easier to understand. |
141 | ;; Actually using hooks within Emacs is bad for future maintenance. --rms. | |
142 | ;; (add-hook 'before-init-hook 'frame-initialize) | |
143 | ;; (add-hook 'window-setup-hook 'frame-notice-user-settings) | |
64c669bc | 144 | |
dc6d9681 JB |
145 | ;;; If we create the initial frame, this is it. |
146 | (defvar frame-initial-frame nil) | |
64c669bc | 147 | |
3f2f8c83 RS |
148 | ;; Record the parameters used in frame-initialize to make the initial frame. |
149 | (defvar frame-initial-frame-alist) | |
150 | ||
791e09d8 RS |
151 | (defvar frame-initial-geometry-arguments nil) |
152 | ||
64c669bc | 153 | ;;; startup.el calls this function before loading the user's init |
dc6d9681 | 154 | ;;; file - if there is no frame with a minibuffer open now, create |
64c669bc | 155 | ;;; one to display messages while loading the init file. |
dc6d9681 | 156 | (defun frame-initialize () |
85557d7e | 157 | |
64c669bc | 158 | ;; Are we actually running under a window system at all? |
004f057a | 159 | (if (and window-system (not noninteractive) (not (eq window-system 'pc))) |
7eadab74 | 160 | (progn |
62642af9 RS |
161 | ;; Turn on special-display processing only if there's a window system. |
162 | (setq special-display-function 'special-display-popup-frame) | |
163 | ||
7eadab74 JB |
164 | ;; If there is no frame with a minibuffer besides the terminal |
165 | ;; frame, then we need to create the opening frame. Make sure | |
166 | ;; it has a minibuffer, but let initial-frame-alist omit the | |
167 | ;; minibuffer spec. | |
168 | (or (delq terminal-frame (minibuffer-frame-list)) | |
36fc9c9f | 169 | (progn |
3f2f8c83 RS |
170 | (setq frame-initial-frame-alist |
171 | (append initial-frame-alist default-frame-alist)) | |
a8bb5882 RS |
172 | (or (assq 'horizontal-scroll-bars frame-initial-frame-alist) |
173 | (setq frame-initial-frame-alist | |
174 | (cons '(horizontal-scroll-bars . t) | |
175 | frame-initial-frame-alist))) | |
36fc9c9f RS |
176 | (setq default-minibuffer-frame |
177 | (setq frame-initial-frame | |
96a84970 | 178 | (make-frame frame-initial-frame-alist))) |
11281034 RS |
179 | ;; Delete any specifications for window geometry parameters |
180 | ;; so that we won't reapply them in frame-notice-user-settings. | |
181 | ;; It would be wrong to reapply them then, | |
182 | ;; because that would override explicit user resizing. | |
58bf6042 | 183 | (setq initial-frame-alist |
c2079f0a | 184 | (frame-remove-geometry-params initial-frame-alist)))) |
85557d7e | 185 | ;; At this point, we know that we have a frame open, so we |
dc6d9681 JB |
186 | ;; can delete the terminal frame. |
187 | (delete-frame terminal-frame) | |
188 | (setq terminal-frame nil)) | |
85557d7e | 189 | |
0759c4d0 KH |
190 | ;; No, we're not running a window system. Use make-terminal-frame if |
191 | ;; we support that feature, otherwise arrange to cause errors. | |
004f057a RS |
192 | (or (eq window-system 'pc) |
193 | (setq frame-creation-function | |
194 | (if (fboundp 'make-terminal-frame) | |
195 | 'make-terminal-frame | |
196 | (function | |
197 | (lambda (parameters) | |
198 | (error | |
199 | "Can't create multiple frames without a window system")))))))) | |
85557d7e | 200 | |
7eadab74 JB |
201 | ;;; startup.el calls this function after loading the user's init |
202 | ;;; file. Now default-frame-alist and initial-frame-alist contain | |
203 | ;;; information to which we must react; do what needs to be done. | |
dc6d9681 | 204 | (defun frame-notice-user-settings () |
7eadab74 | 205 | |
2ffa6186 | 206 | ;; Make menu-bar-mode and default-frame-alist consistent. |
b65be6a8 KH |
207 | (if (boundp 'menu-bar-mode) |
208 | (let ((default (assq 'menu-bar-lines default-frame-alist))) | |
209 | (if default | |
210 | (setq menu-bar-mode (not (eq (cdr default) 0))) | |
211 | (setq default-frame-alist | |
212 | (cons (cons 'menu-bar-lines (if menu-bar-mode 1 0)) | |
213 | default-frame-alist))))) | |
2ffa6186 | 214 | |
7eadab74 JB |
215 | ;; Creating and deleting frames may shift the selected frame around, |
216 | ;; and thus the current buffer. Protect against that. We don't | |
217 | ;; want to use save-excursion here, because that may also try to set | |
218 | ;; the buffer of the selected window, which fails when the selected | |
219 | ;; window is the minibuffer. | |
220 | (let ((old-buffer (current-buffer))) | |
221 | ||
222 | ;; If the initial frame is still around, apply initial-frame-alist | |
223 | ;; and default-frame-alist to it. | |
224 | (if (frame-live-p frame-initial-frame) | |
225 | ||
226 | ;; The initial frame we create above always has a minibuffer. | |
227 | ;; If the user wants to remove it, or make it a minibuffer-only | |
228 | ;; frame, then we'll have to delete the current frame and make a | |
229 | ;; new one; you can't remove or add a root window to/from an | |
230 | ;; existing frame. | |
231 | ;; | |
ec558adc JB |
232 | ;; NOTE: default-frame-alist was nil when we created the |
233 | ;; existing frame. We need to explicitly include | |
234 | ;; default-frame-alist in the parameters of the screen we | |
235 | ;; create here, so that its new value, gleaned from the user's | |
236 | ;; .emacs file, will be applied to the existing screen. | |
7eadab74 JB |
237 | (if (not (eq (cdr (or (assq 'minibuffer initial-frame-alist) |
238 | (assq 'minibuffer default-frame-alist) | |
239 | '(minibuffer . t))) | |
240 | t)) | |
241 | ;; Create the new frame. | |
b65e2f74 RS |
242 | (let (parms new) |
243 | ;; If the frame isn't visible yet, wait till it is. | |
244 | ;; If the user has to position the window, | |
245 | ;; Emacs doesn't know its real position until | |
246 | ;; the frame is seen to be visible. | |
247 | (while (not (cdr (assq 'visibility | |
248 | (frame-parameters frame-initial-frame)))) | |
249 | (sleep-for 1)) | |
06d7dff2 RS |
250 | (setq parms (frame-parameters frame-initial-frame)) |
251 | ;; Get rid of `name' unless it was specified explicitly before. | |
252 | (or (assq 'name frame-initial-frame-alist) | |
253 | (setq parms (delq (assq 'name parms) parms))) | |
b65e2f74 | 254 | (setq parms (append initial-frame-alist |
6eb018ba | 255 | default-frame-alist |
06d7dff2 | 256 | parms |
6eb018ba | 257 | nil)) |
c1e67401 RS |
258 | ;; Get rid of `reverse', because that was handled |
259 | ;; when we first made the frame. | |
260 | (setq parms (cons '(reverse) (delq (assq 'reverse parms) parms))) | |
261 | (if (assq 'height frame-initial-geometry-arguments) | |
5b66a32f | 262 | (setq parms (frame-delete-all 'height parms))) |
c1e67401 | 263 | (if (assq 'width frame-initial-geometry-arguments) |
5b66a32f | 264 | (setq parms (frame-delete-all 'width parms))) |
c1e67401 | 265 | (if (assq 'left frame-initial-geometry-arguments) |
5b66a32f | 266 | (setq parms (frame-delete-all 'left parms))) |
c1e67401 | 267 | (if (assq 'top frame-initial-geometry-arguments) |
5b66a32f | 268 | (setq parms (frame-delete-all 'top parms))) |
c1e67401 RS |
269 | (setq new |
270 | (make-frame | |
271 | ;; Use the geometry args that created the existing | |
272 | ;; frame, rather than the parms we get for it. | |
3ce3ff11 KH |
273 | (append frame-initial-geometry-arguments |
274 | '((user-size . t) (user-position . t)) | |
275 | parms))) | |
7eadab74 JB |
276 | ;; The initial frame, which we are about to delete, may be |
277 | ;; the only frame with a minibuffer. If it is, create a | |
278 | ;; new one. | |
279 | (or (delq frame-initial-frame (minibuffer-frame-list)) | |
746bd265 | 280 | (make-initial-minibuffer-frame nil)) |
7eadab74 JB |
281 | |
282 | ;; If the initial frame is serving as a surrogate | |
283 | ;; minibuffer frame for any frames, we need to wean them | |
284 | ;; onto a new frame. The default-minibuffer-frame | |
285 | ;; variable must be handled similarly. | |
286 | (let ((users-of-initial | |
287 | (filtered-frame-list | |
288 | (function (lambda (frame) | |
289 | (and (not (eq frame frame-initial-frame)) | |
290 | (eq (window-frame | |
291 | (minibuffer-window frame)) | |
292 | frame-initial-frame))))))) | |
293 | (if (or users-of-initial | |
294 | (eq default-minibuffer-frame frame-initial-frame)) | |
295 | ||
296 | ;; Choose an appropriate frame. Prefer frames which | |
297 | ;; are only minibuffers. | |
298 | (let* ((new-surrogate | |
299 | (car | |
300 | (or (filtered-frame-list | |
301 | (function | |
302 | (lambda (frame) | |
303 | (eq (cdr (assq 'minibuffer | |
304 | (frame-parameters frame))) | |
305 | 'only)))) | |
306 | (minibuffer-frame-list)))) | |
307 | (new-minibuffer (minibuffer-window new-surrogate))) | |
308 | ||
309 | (if (eq default-minibuffer-frame frame-initial-frame) | |
310 | (setq default-minibuffer-frame new-surrogate)) | |
311 | ||
312 | ;; Wean the frames using frame-initial-frame as | |
313 | ;; their minibuffer frame. | |
314 | (mapcar | |
315 | (function | |
316 | (lambda (frame) | |
317 | (modify-frame-parameters | |
318 | frame (list (cons 'minibuffer new-minibuffer))))) | |
319 | users-of-initial)))) | |
ec558adc JB |
320 | |
321 | ;; Redirect events enqueued at this frame to the new frame. | |
322 | ;; Is this a good idea? | |
7eadab74 | 323 | (redirect-frame-focus frame-initial-frame new) |
ec558adc | 324 | |
7eadab74 | 325 | ;; Finally, get rid of the old frame. |
0cffbbb9 | 326 | (delete-frame frame-initial-frame t)) |
7eadab74 JB |
327 | |
328 | ;; Otherwise, we don't need all that rigamarole; just apply | |
329 | ;; the new parameters. | |
3f2f8c83 RS |
330 | (let (newparms allparms tail) |
331 | (setq allparms (append initial-frame-alist | |
332 | default-frame-alist)) | |
5b66a32f RS |
333 | (if (assq 'height frame-initial-geometry-arguments) |
334 | (setq allparms (frame-delete-all 'height allparms))) | |
335 | (if (assq 'width frame-initial-geometry-arguments) | |
336 | (setq allparms (frame-delete-all 'width allparms))) | |
337 | (if (assq 'left frame-initial-geometry-arguments) | |
338 | (setq allparms (frame-delete-all 'left allparms))) | |
339 | (if (assq 'top frame-initial-geometry-arguments) | |
340 | (setq allparms (frame-delete-all 'top allparms))) | |
3f2f8c83 RS |
341 | (setq tail allparms) |
342 | ;; Find just the parms that have changed since we first | |
343 | ;; made this frame. Those are the ones actually set by | |
344 | ;; the init file. For those parms whose values we already knew | |
345 | ;; (such as those spec'd by command line options) | |
346 | ;; it is undesirable to specify the parm again | |
347 | ;; once the user has seen the frame and been able to alter it | |
348 | ;; manually. | |
349 | (while tail | |
350 | (let (newval oldval) | |
66de157d RS |
351 | (setq oldval (assq (car (car tail)) |
352 | frame-initial-frame-alist)) | |
3f2f8c83 | 353 | (setq newval (cdr (assq (car (car tail)) allparms))) |
66de157d | 354 | (or (and oldval (eq (cdr oldval) newval)) |
3f2f8c83 RS |
355 | (setq newparms |
356 | (cons (cons (car (car tail)) newval) newparms)))) | |
357 | (setq tail (cdr tail))) | |
86e58378 | 358 | (setq newparms (nreverse newparms)) |
3f2f8c83 | 359 | (modify-frame-parameters frame-initial-frame |
86e58378 RS |
360 | newparms) |
361 | (if (assq 'font newparms) | |
362 | (frame-update-faces frame-initial-frame))))) | |
64c669bc | 363 | |
7eadab74 JB |
364 | ;; Restore the original buffer. |
365 | (set-buffer old-buffer) | |
366 | ||
367 | ;; Make sure the initial frame can be GC'd if it is ever deleted. | |
d202f1f2 JB |
368 | ;; Make sure frame-notice-user-settings does nothing if called twice. |
369 | (setq frame-initial-frame nil))) | |
64c669bc | 370 | |
746bd265 KH |
371 | (defun make-initial-minibuffer-frame (display) |
372 | (let ((parms (append minibuffer-frame-alist '((minibuffer . only))))) | |
373 | (if display | |
374 | (make-frame-on-display display parms) | |
375 | (make-frame parms)))) | |
376 | ||
5b66a32f RS |
377 | ;; Delete from ALIST all elements whose car is KEY. |
378 | ;; Return the modified alist. | |
379 | (defun frame-delete-all (key alist) | |
9759578f | 380 | (setq alist (copy-sequence alist)) |
5b66a32f RS |
381 | (let ((tail alist)) |
382 | (while tail | |
383 | (if (eq (car (car tail)) key) | |
384 | (setq alist (delq (car tail) alist))) | |
385 | (setq tail (cdr tail))) | |
386 | alist)) | |
64c669bc | 387 | \f |
7eadab74 | 388 | ;;;; Creation of additional frames, and other frame miscellanea |
dc6d9681 | 389 | |
7eadab74 | 390 | ;;; Return some frame other than the current frame, creating one if |
eb8c3be9 | 391 | ;;; necessary. Note that the minibuffer frame, if separate, is not |
7eadab74 | 392 | ;;; considered (see next-frame). |
7253d8e0 | 393 | (defun get-other-frame () |
dc6d9681 | 394 | (let ((s (if (equal (next-frame (selected-frame)) (selected-frame)) |
6eb018ba | 395 | (make-frame) |
dc6d9681 | 396 | (next-frame (selected-frame))))) |
64c669bc JB |
397 | s)) |
398 | ||
dc6d9681 JB |
399 | (defun next-multiframe-window () |
400 | "Select the next window, regardless of which frame it is on." | |
64c669bc JB |
401 | (interactive) |
402 | (select-window (next-window (selected-window) | |
403 | (> (minibuffer-depth) 0) | |
404 | t))) | |
405 | ||
dc6d9681 JB |
406 | (defun previous-multiframe-window () |
407 | "Select the previous window, regardless of which frame it is on." | |
64c669bc JB |
408 | (interactive) |
409 | (select-window (previous-window (selected-window) | |
410 | (> (minibuffer-depth) 0) | |
411 | t))) | |
412 | ||
6d73e337 RS |
413 | (defun make-frame-on-display (display &optional parameters) |
414 | "Make a frame on display DISPLAY. | |
415 | The optional second argument PARAMETERS specifies additional frame parameters." | |
416 | (interactive "sMake frame on display: ") | |
8a38e772 RS |
417 | (or (string-match "\\`[^:]+:[0-9]+\\(:[0-9]+\\)?\\'" display) |
418 | (error "Invalid display, not HOST:SERVER or HOST:SERVER:SCREEN")) | |
6d73e337 RS |
419 | (make-frame (cons (cons 'display display) parameters))) |
420 | ||
6238bfaf RS |
421 | (defun make-frame-command () |
422 | "Make a new frame, and select it if the terminal displays only one frame." | |
423 | (interactive) | |
c1b1350b | 424 | (if (and window-system (not (eq window-system 'pc))) |
6238bfaf RS |
425 | (make-frame) |
426 | (select-frame (make-frame)))) | |
427 | ||
45c4fdeb SM |
428 | (defvar before-make-frame-hook nil |
429 | "Functions to run before a frame is created.") | |
430 | ||
431 | (defvar after-make-frame-functions nil | |
432 | "Functions to run after a frame is created. | |
433 | The functions are run with one arg, the newly created frame.") | |
434 | ||
92e443b1 | 435 | ;; Alias, kept temporarily. |
31e1d920 | 436 | (defalias 'new-frame 'make-frame) |
bc93c097 | 437 | |
45c4fdeb SM |
438 | (defun make-frame (&optional parameters) |
439 | "Return a newly created frame displaying the current buffer. | |
440 | Optional argument PARAMETERS is an alist of parameters for the new frame. | |
441 | Each element of PARAMETERS should have the form (NAME . VALUE), for example: | |
a105105a | 442 | |
45c4fdeb | 443 | (name . STRING) The frame should be named STRING. |
43a2e52c | 444 | |
45c4fdeb SM |
445 | (width . NUMBER) The frame should be NUMBER characters in width. |
446 | (height . NUMBER) The frame should be NUMBER text lines high. | |
43a2e52c | 447 | |
45c4fdeb | 448 | You cannot specify either `width' or `height', you must use neither or both. |
43a2e52c | 449 | |
45c4fdeb SM |
450 | (minibuffer . t) The frame should have a minibuffer. |
451 | (minibuffer . nil) The frame should have no minibuffer. | |
452 | (minibuffer . only) The frame should contain only a minibuffer. | |
453 | (minibuffer . WINDOW) The frame should use WINDOW as its minibuffer window. | |
43a2e52c | 454 | |
45c4fdeb SM |
455 | Before the frame is created (via `frame-creation-function'), functions on the |
456 | hook `before-make-frame-hook' are run. After the frame is created, functions | |
457 | on `after-make-frame-functions' are run with one arg, the newly created frame." | |
64c669bc | 458 | (interactive) |
45c4fdeb SM |
459 | (run-hooks 'before-make-frame-hook) |
460 | (let ((frame (funcall frame-creation-function parameters))) | |
461 | (run-hook-with-args 'after-make-frame-functions frame) | |
462 | frame)) | |
64c669bc | 463 | |
7eadab74 JB |
464 | (defun filtered-frame-list (predicate) |
465 | "Return a list of all live frames which satisfy PREDICATE." | |
466 | (let ((frames (frame-list)) | |
467 | good-frames) | |
468 | (while (consp frames) | |
469 | (if (funcall predicate (car frames)) | |
470 | (setq good-frames (cons (car frames) good-frames))) | |
471 | (setq frames (cdr frames))) | |
472 | good-frames)) | |
473 | ||
474 | (defun minibuffer-frame-list () | |
475 | "Return a list of all frames with their own minibuffers." | |
476 | (filtered-frame-list | |
477 | (function (lambda (frame) | |
478 | (eq frame (window-frame (minibuffer-window frame))))))) | |
479 | ||
58bf6042 JB |
480 | (defun frame-remove-geometry-params (param-list) |
481 | "Return the parameter list PARAM-LIST, but with geometry specs removed. | |
482 | This deletes all bindings in PARAM-LIST for `top', `left', `width', | |
791e09d8 | 483 | `height', `user-size' and `user-position' parameters. |
58bf6042 JB |
484 | Emacs uses this to avoid overriding explicit moves and resizings from |
485 | the user during startup." | |
486 | (setq param-list (cons nil param-list)) | |
487 | (let ((tail param-list)) | |
488 | (while (consp (cdr tail)) | |
489 | (if (and (consp (car (cdr tail))) | |
791e09d8 RS |
490 | (memq (car (car (cdr tail))) |
491 | '(height width top left user-position user-size))) | |
492 | (progn | |
493 | (setq frame-initial-geometry-arguments | |
494 | (cons (car (cdr tail)) frame-initial-geometry-arguments)) | |
495 | (setcdr tail (cdr (cdr tail)))) | |
58bf6042 | 496 | (setq tail (cdr tail))))) |
e11c3dc2 KH |
497 | (setq frame-initial-geometry-arguments |
498 | (nreverse frame-initial-geometry-arguments)) | |
58bf6042 JB |
499 | (cdr param-list)) |
500 | ||
501 | ||
0ac18fb0 RS |
502 | (defcustom focus-follows-mouse t |
503 | "*Non-nil if window system changes focus when you move the mouse." | |
504 | :type 'boolean | |
cd32a7ba DN |
505 | :group 'frames |
506 | :version "20.3") | |
26ef026d | 507 | |
ceab6935 | 508 | (defun other-frame (arg) |
a569dbc3 | 509 | "Select the ARG'th different visible frame, and raise it. |
ceab6935 RM |
510 | All frames are arranged in a cyclic order. |
511 | This command selects the frame ARG steps away in that order. | |
512 | A negative ARG moves in the opposite order." | |
513 | (interactive "p") | |
514 | (let ((frame (selected-frame))) | |
515 | (while (> arg 0) | |
a569dbc3 RM |
516 | (setq frame (next-frame frame)) |
517 | (while (not (eq (frame-visible-p frame) t)) | |
518 | (setq frame (next-frame frame))) | |
519 | (setq arg (1- arg))) | |
ceab6935 | 520 | (while (< arg 0) |
a569dbc3 RM |
521 | (setq frame (previous-frame frame)) |
522 | (while (not (eq (frame-visible-p frame) t)) | |
523 | (setq frame (previous-frame frame))) | |
915cfd1f | 524 | (setq arg (1+ arg))) |
ceab6935 | 525 | (raise-frame frame) |
699213bc | 526 | (select-frame frame) |
9d702ce6 GV |
527 | ;; Ensure, if possible, that frame gets input focus. |
528 | (if (eq window-system 'w32) | |
529 | (w32-focus-frame frame) | |
5265a842 | 530 | (when focus-follows-mouse |
26ef026d | 531 | (set-mouse-position (selected-frame) (1- (frame-width)) 0))))) |
845cde06 EZ |
532 | |
533 | (defun make-frame-names-alist () | |
534 | (let* ((current-frame (selected-frame)) | |
535 | (falist | |
536 | (cons | |
537 | (cons (frame-parameter current-frame 'name) current-frame) nil)) | |
538 | (frame (next-frame nil t))) | |
539 | (while (not (eq frame current-frame)) | |
540 | (progn | |
541 | (setq falist (cons (cons (frame-parameter frame 'name) frame) falist)) | |
542 | (setq frame (next-frame frame t)))) | |
543 | falist)) | |
544 | ||
545 | (defvar frame-name-history nil) | |
845cde06 EZ |
546 | (defun select-frame-by-name (name) |
547 | "Select the frame whose name is NAME and raise it. | |
548 | If there is no frame by that name, signal an error." | |
549 | (interactive | |
716ff1c9 RS |
550 | (let* ((frame-names-alist (make-frame-names-alist)) |
551 | (default (car (car frame-names-alist))) | |
552 | (input (completing-read | |
553 | (format "Select Frame (default %s): " default) | |
554 | frame-names-alist nil t nil 'frame-name-history))) | |
845cde06 EZ |
555 | (if (= (length input) 0) |
556 | (list default) | |
557 | (list input)))) | |
716ff1c9 RS |
558 | (let* ((frame-names-alist (make-frame-names-alist)) |
559 | (frame (cdr (assoc name frame-names-alist)))) | |
845cde06 EZ |
560 | (or frame |
561 | (error "There is no frame named `%s'" name)) | |
562 | (make-frame-visible frame) | |
563 | (raise-frame frame) | |
564 | (select-frame frame))) | |
64c669bc | 565 | \f |
dc6d9681 JB |
566 | ;;;; Frame configurations |
567 | ||
568 | (defun current-frame-configuration () | |
569 | "Return a list describing the positions and states of all frames. | |
376a7584 JB |
570 | Its car is `frame-configuration'. |
571 | Each element of the cdr is a list of the form (FRAME ALIST WINDOW-CONFIG), | |
572 | where | |
573 | FRAME is a frame object, | |
574 | ALIST is an association list specifying some of FRAME's parameters, and | |
575 | WINDOW-CONFIG is a window configuration object for FRAME." | |
576 | (cons 'frame-configuration | |
577 | (mapcar (function | |
578 | (lambda (frame) | |
579 | (list frame | |
580 | (frame-parameters frame) | |
581 | (current-window-configuration frame)))) | |
582 | (frame-list)))) | |
dc6d9681 | 583 | |
68cd265f | 584 | (defun set-frame-configuration (configuration &optional nodelete) |
dc6d9681 JB |
585 | "Restore the frames to the state described by CONFIGURATION. |
586 | Each frame listed in CONFIGURATION has its position, size, window | |
68cd265f | 587 | configuration, and other parameters set as specified in CONFIGURATION. |
a78db71c RS |
588 | Ordinarily, this function deletes all existing frames not |
589 | listed in CONFIGURATION. But if optional second argument NODELETE | |
5da841d2 | 590 | is given and non-nil, the unwanted frames are iconified instead." |
376a7584 JB |
591 | (or (frame-configuration-p configuration) |
592 | (signal 'wrong-type-argument | |
593 | (list 'frame-configuration-p configuration))) | |
594 | (let ((config-alist (cdr configuration)) | |
595 | frames-to-delete) | |
06b1a5ef | 596 | (mapcar (function |
dc6d9681 | 597 | (lambda (frame) |
376a7584 | 598 | (let ((parameters (assq frame config-alist))) |
06b1a5ef JB |
599 | (if parameters |
600 | (progn | |
98e9d14b JB |
601 | (modify-frame-parameters |
602 | frame | |
85557d7e | 603 | ;; Since we can't set a frame's minibuffer status, |
98e9d14b JB |
604 | ;; we might as well omit the parameter altogether. |
605 | (let* ((parms (nth 1 parameters)) | |
606 | (mini (assq 'minibuffer parms))) | |
607 | (if mini (setq parms (delq mini parms))) | |
608 | parms)) | |
06b1a5ef | 609 | (set-window-configuration (nth 2 parameters))) |
dc6d9681 JB |
610 | (setq frames-to-delete (cons frame frames-to-delete)))))) |
611 | (frame-list)) | |
a78db71c | 612 | (if nodelete |
5da841d2 RS |
613 | ;; Note: making frames invisible here was tried |
614 | ;; but led to some strange behavior--each time the frame | |
615 | ;; was made visible again, the window manager asked afresh | |
616 | ;; for where to put it. | |
617 | (mapcar 'iconify-frame frames-to-delete) | |
a78db71c | 618 | (mapcar 'delete-frame frames-to-delete)))) |
64c669bc | 619 | \f |
dc6d9681 JB |
620 | ;;;; Convenience functions for accessing and interactively changing |
621 | ;;;; frame parameters. | |
64c669bc | 622 | |
b5d48854 | 623 | (defun frame-parameter (frame parameter) |
3196c5a7 SM |
624 | "Return FRAME's value for parameter PARAMETER. |
625 | If FRAME is omitted, describe the currently selected frame." | |
626 | (cdr (assq parameter (frame-parameters frame)))) | |
b5d48854 | 627 | |
151bdc83 | 628 | (defun frame-height (&optional frame) |
dc6d9681 JB |
629 | "Return number of lines available for display on FRAME. |
630 | If FRAME is omitted, describe the currently selected frame." | |
151bdc83 | 631 | (cdr (assq 'height (frame-parameters frame)))) |
dc6d9681 JB |
632 | |
633 | (defun frame-width (&optional frame) | |
634 | "Return number of columns available for display on FRAME. | |
635 | If FRAME is omitted, describe the currently selected frame." | |
151bdc83 | 636 | (cdr (assq 'width (frame-parameters frame)))) |
dc6d9681 | 637 | |
889611f0 RS |
638 | (defalias 'set-default-font 'set-frame-font) |
639 | (defun set-frame-font (font-name) | |
7eadab74 | 640 | "Set the font of the selected frame to FONT. |
61298010 RS |
641 | When called interactively, prompt for the name of the font to use. |
642 | To get the frame's current default font, use `frame-parameters'." | |
64c669bc | 643 | (interactive "sFont name: ") |
dc6d9681 | 644 | (modify-frame-parameters (selected-frame) |
4033f46b RS |
645 | (list (cons 'font font-name))) |
646 | ;; Update faces that want a bold or italic version of the default font. | |
647 | (frame-update-faces (selected-frame))) | |
64c669bc | 648 | |
8290babd | 649 | (defun set-background-color (color-name) |
7eadab74 | 650 | "Set the background color of the selected frame to COLOR. |
61298010 RS |
651 | When called interactively, prompt for the name of the color to use. |
652 | To get the frame's current background color, use `frame-parameters'." | |
64c669bc | 653 | (interactive "sColor: ") |
dc6d9681 | 654 | (modify-frame-parameters (selected-frame) |
1787c22a RS |
655 | (list (cons 'background-color color-name))) |
656 | (frame-update-face-colors (selected-frame))) | |
64c669bc | 657 | |
8290babd | 658 | (defun set-foreground-color (color-name) |
7eadab74 | 659 | "Set the foreground color of the selected frame to COLOR. |
61298010 RS |
660 | When called interactively, prompt for the name of the color to use. |
661 | To get the frame's current foreground color, use `frame-parameters'." | |
64c669bc | 662 | (interactive "sColor: ") |
dc6d9681 | 663 | (modify-frame-parameters (selected-frame) |
1787c22a RS |
664 | (list (cons 'foreground-color color-name))) |
665 | (frame-update-face-colors (selected-frame))) | |
64c669bc JB |
666 | |
667 | (defun set-cursor-color (color-name) | |
7eadab74 | 668 | "Set the text cursor color of the selected frame to COLOR. |
61298010 RS |
669 | When called interactively, prompt for the name of the color to use. |
670 | To get the frame's current cursor color, use `frame-parameters'." | |
64c669bc | 671 | (interactive "sColor: ") |
dc6d9681 | 672 | (modify-frame-parameters (selected-frame) |
7eadab74 | 673 | (list (cons 'cursor-color color-name)))) |
64c669bc | 674 | |
eaa974e1 | 675 | (defun set-mouse-color (color-name) |
7eadab74 | 676 | "Set the color of the mouse pointer of the selected frame to COLOR. |
61298010 RS |
677 | When called interactively, prompt for the name of the color to use. |
678 | To get the frame's current mouse color, use `frame-parameters'." | |
64c669bc | 679 | (interactive "sColor: ") |
dc6d9681 | 680 | (modify-frame-parameters (selected-frame) |
7eadab74 JB |
681 | (list (cons 'mouse-color color-name)))) |
682 | ||
eaa974e1 JB |
683 | (defun set-border-color (color-name) |
684 | "Set the color of the border of the selected frame to COLOR. | |
61298010 RS |
685 | When called interactively, prompt for the name of the color to use. |
686 | To get the frame's current border color, use `frame-parameters'." | |
eaa974e1 JB |
687 | (interactive "sColor: ") |
688 | (modify-frame-parameters (selected-frame) | |
689 | (list (cons 'border-color color-name)))) | |
690 | ||
691 | (defun auto-raise-mode (arg) | |
7eadab74 | 692 | "Toggle whether or not the selected frame should auto-raise. |
79e6ae33 RS |
693 | With arg, turn auto-raise mode on if and only if arg is positive. |
694 | Note that this controls Emacs's own auto-raise feature. | |
695 | Some window managers allow you to enable auto-raise for certain windows. | |
696 | You can use that for Emacs windows if you wish, but if you do, | |
697 | that is beyond the control of Emacs and this command has no effect on it." | |
7eadab74 JB |
698 | (interactive "P") |
699 | (if (null arg) | |
700 | (setq arg | |
701 | (if (cdr (assq 'auto-raise (frame-parameters (selected-frame)))) | |
702 | -1 1))) | |
dc6d9681 | 703 | (modify-frame-parameters (selected-frame) |
7eadab74 JB |
704 | (list (cons 'auto-raise (> arg 0))))) |
705 | ||
eaa974e1 | 706 | (defun auto-lower-mode (arg) |
7eadab74 | 707 | "Toggle whether or not the selected frame should auto-lower. |
79e6ae33 RS |
708 | With arg, turn auto-lower mode on if and only if arg is positive. |
709 | Note that this controls Emacs's own auto-lower feature. | |
710 | Some window managers allow you to enable auto-lower for certain windows. | |
711 | You can use that for Emacs windows if you wish, but if you do, | |
712 | that is beyond the control of Emacs and this command has no effect on it." | |
7eadab74 JB |
713 | (interactive "P") |
714 | (if (null arg) | |
715 | (setq arg | |
716 | (if (cdr (assq 'auto-lower (frame-parameters (selected-frame)))) | |
717 | -1 1))) | |
dc6d9681 | 718 | (modify-frame-parameters (selected-frame) |
7eadab74 | 719 | (list (cons 'auto-lower (> arg 0))))) |
7777d03b EZ |
720 | (defun set-frame-name (name) |
721 | "Set the name of the selected frame to NAME. | |
722 | When called interactively, prompt for the name of the frame. | |
723 | The frame name is displayed on the modeline if the terminal displays only | |
724 | one frame, otherwise the name is displayed on the frame's caption bar." | |
725 | (interactive "sFrame name: ") | |
726 | (modify-frame-parameters (selected-frame) | |
727 | (list (cons 'name name)))) | |
64c669bc | 728 | \f |
dc6d9681 | 729 | ;;;; Aliases for backward compatibility with Emacs 18. |
31e1d920 ER |
730 | (defalias 'screen-height 'frame-height) |
731 | (defalias 'screen-width 'frame-width) | |
9e2b097b JB |
732 | |
733 | (defun set-screen-width (cols &optional pretend) | |
734 | "Obsolete function to change the size of the screen to COLS columns.\n\ | |
735 | Optional second arg non-nil means that redisplay should use COLS columns\n\ | |
736 | but that the idea of the actual width of the frame should not be changed.\n\ | |
737 | This function is provided only for compatibility with Emacs 18; new code\n\ | |
fe668515 | 738 | should use `set-frame-width instead'." |
9e2b097b JB |
739 | (set-frame-width (selected-frame) cols pretend)) |
740 | ||
741 | (defun set-screen-height (lines &optional pretend) | |
742 | "Obsolete function to change the height of the screen to LINES lines.\n\ | |
743 | Optional second arg non-nil means that redisplay should use LINES lines\n\ | |
744 | but that the idea of the actual height of the screen should not be changed.\n\ | |
745 | This function is provided only for compatibility with Emacs 18; new code\n\ | |
ef5a6345 | 746 | should use `set-frame-height' instead." |
9e2b097b JB |
747 | (set-frame-height (selected-frame) lines pretend)) |
748 | ||
749 | (make-obsolete 'screen-height 'frame-height) | |
750 | (make-obsolete 'screen-width 'frame-width) | |
751 | (make-obsolete 'set-screen-width 'set-frame-width) | |
752 | (make-obsolete 'set-screen-height 'set-frame-height) | |
dc6d9681 JB |
753 | |
754 | \f | |
64c669bc | 755 | ;;;; Key bindings |
64c669bc | 756 | |
6238bfaf | 757 | (define-key ctl-x-5-map "2" 'make-frame-command) |
dc6d9681 | 758 | (define-key ctl-x-5-map "0" 'delete-frame) |
ceab6935 | 759 | (define-key ctl-x-5-map "o" 'other-frame) |
49116ac0 | 760 | |
dc6d9681 | 761 | (provide 'frame) |
c88ab9ce | 762 | |
dc6d9681 | 763 | ;;; frame.el ends here |