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55535639 | 1 | ;;; frame.el --- multi-frame management independent of window systems |
c88ab9ce | 2 | |
0d30b337 | 3 | ;; Copyright (C) 1993, 1994, 1996, 1997, 2000, 2001, 2002, 2003, |
d7a0267c | 4 | ;; 2004, 2005, 2006, 2007 Free Software Foundation, Inc. |
3a801d0c | 5 | |
fc68affa | 6 | ;; Maintainer: FSF |
fd7fa35a | 7 | ;; Keywords: internal |
fc68affa | 8 | |
b578f267 EN |
9 | ;; This file is part of GNU Emacs. |
10 | ||
11 | ;; GNU Emacs is free software; you can redistribute it and/or modify | |
12 | ;; it under the terms of the GNU General Public License as published by | |
b4aa6026 | 13 | ;; the Free Software Foundation; either version 3, or (at your option) |
b578f267 EN |
14 | ;; any later version. |
15 | ||
16 | ;; GNU Emacs is distributed in the hope that it will be useful, | |
17 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
18 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
19 | ;; GNU General Public License for more details. | |
20 | ||
21 | ;; You should have received a copy of the GNU General Public License | |
22 | ;; along with GNU Emacs; see the file COPYING. If not, write to the | |
086add15 LK |
23 | ;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
24 | ;; Boston, MA 02110-1301, USA. | |
64c669bc | 25 | |
55535639 PJ |
26 | ;;; Commentary: |
27 | ||
fc68affa ER |
28 | ;;; Code: |
29 | ||
2246281f KL |
30 | (defvar frame-creation-function-alist |
31 | (list (cons nil | |
32 | (if (fboundp 'tty-create-frame-with-faces) | |
33 | 'tty-create-frame-with-faces | |
371fed4e SM |
34 | (lambda (parameters) |
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. | |
095fe281 | 43 | You can set this in your `.emacs' file; for example, |
bf1ba39f KL |
44 | |
45 | ;; Disable menubar and toolbar on the console, but enable them under X. | |
46 | (setq window-system-default-frame-alist | |
47 | '((x (menu-bar-lines . 1) (tool-bar-lines . 1)) | |
48 | (nil (menu-bar-lines . 0) (tool-bar-lines . 0)))) | |
49 | ||
095fe281 | 50 | Parameters specified here supersede the values given in `default-frame-alist'.") |
bf1ba39f | 51 | |
7e573c4a SM |
52 | ;; The initial value given here used to ask for a minibuffer. |
53 | ;; But that's not necessary, because the default is to have one. | |
54 | ;; By not specifying it here, we let an X resource specify it. | |
0c966f88 | 55 | (defcustom initial-frame-alist nil |
0b9d32af | 56 | "*Alist of frame parameters for creating the initial X window frame. |
eaa974e1 | 57 | You can set this in your `.emacs' file; for example, |
dc6d9681 | 58 | (setq initial-frame-alist '((top . 1) (left . 1) (width . 80) (height . 55))) |
de17da15 RS |
59 | Parameters specified here supersede the values given in `default-frame-alist'. |
60 | ||
61 | If the value calls for a frame without a minibuffer, and you have not created | |
62 | a minibuffer frame on your own, one is created according to | |
7eadab74 | 63 | `minibuffer-frame-alist'. |
de17da15 RS |
64 | |
65 | You can specify geometry-related options for just the initial frame | |
66 | by setting this variable in your `.emacs' file; however, they won't | |
85557d7e | 67 | take effect until Emacs reads `.emacs', which happens after first creating |
de17da15 RS |
68 | the frame. If you want the frame to have the proper geometry as soon |
69 | as it appears, you need to use this three-step process: | |
70 | * Specify X resources to give the geometry you want. | |
71 | * Set `default-frame-alist' to override these options so that they | |
72 | don't affect subsequent frames. | |
73 | * Set `initial-frame-alist' in a way that matches the X resources, | |
0c966f88 RS |
74 | to override what you put in `default-frame-alist'." |
75 | :type '(repeat (cons :format "%v" | |
76 | (symbol :tag "Parameter") | |
77 | (sexp :tag "Value"))) | |
78 | :group 'frames) | |
64c669bc | 79 | |
0b9d32af RS |
80 | (defcustom minibuffer-frame-alist '((width . 80) (height . 2)) |
81 | "*Alist of frame parameters for initially creating a minibuffer frame. | |
eaa974e1 | 82 | You can set this in your `.emacs' file; for example, |
dc6d9681 | 83 | (setq minibuffer-frame-alist |
7eadab74 | 84 | '((top . 1) (left . 1) (width . 80) (height . 2))) |
eaa974e1 | 85 | Parameters specified here supersede the values given in |
0b9d32af RS |
86 | `default-frame-alist', for a minibuffer frame." |
87 | :type '(repeat (cons :format "%v" | |
88 | (symbol :tag "Parameter") | |
89 | (sexp :tag "Value"))) | |
90 | :group 'frames) | |
64c669bc | 91 | |
0b9d32af RS |
92 | (defcustom pop-up-frame-alist nil |
93 | "*Alist of frame parameters used when creating pop-up frames. | |
dc6d9681 | 94 | Pop-up frames are used for completions, help, and the like. |
64c669bc | 95 | This variable can be set in your init file, like this: |
dc6d9681 | 96 | (setq pop-up-frame-alist '((width . 80) (height . 20))) |
0b9d32af RS |
97 | These supersede the values given in `default-frame-alist', |
98 | for pop-up frames." | |
99 | :type '(repeat (cons :format "%v" | |
100 | (symbol :tag "Parameter") | |
101 | (sexp :tag "Value"))) | |
102 | :group 'frames) | |
64c669bc | 103 | |
dc6d9681 | 104 | (setq pop-up-frame-function |
7f18ce22 RS |
105 | ;; Using `function' here caused some sort of problem. |
106 | '(lambda () | |
107 | (make-frame pop-up-frame-alist))) | |
64c669bc | 108 | |
30e19aee | 109 | (defcustom special-display-frame-alist |
8a9e86e6 RS |
110 | '((height . 14) (width . 80) (unsplittable . t)) |
111 | "*Alist of frame parameters used when creating special frames. | |
112 | Special frames are used for buffers whose names are in | |
113 | `special-display-buffer-names' and for buffers whose names match | |
114 | one of the regular expressions in `special-display-regexps'. | |
115 | This variable can be set in your init file, like this: | |
116 | (setq special-display-frame-alist '((width . 80) (height . 20))) | |
30e19aee RS |
117 | These supersede the values given in `default-frame-alist'." |
118 | :type '(repeat (cons :format "%v" | |
119 | (symbol :tag "Parameter") | |
120 | (sexp :tag "Value"))) | |
121 | :group 'frames) | |
8a9e86e6 | 122 | |
95e6cf39 | 123 | (defun special-display-popup-frame (buffer &optional args) |
40d34803 DL |
124 | "Display BUFFER in its own frame, reusing an existing window if any. |
125 | Return the window chosen. | |
126 | Currently we do not insist on selecting the window within its frame. | |
127 | If ARGS is an alist, use it as a list of frame parameter specs. | |
128 | If ARGS is a list whose car is a symbol, | |
129 | use (car ARGS) as a function to do the work. | |
130 | Pass it BUFFER as first arg, and (cdr ARGS) gives the rest of the args." | |
95e6cf39 RS |
131 | (if (and args (symbolp (car args))) |
132 | (apply (car args) buffer (cdr args)) | |
bb2c34b1 | 133 | (let ((window (get-buffer-window buffer 0))) |
7e573c4a SM |
134 | (or |
135 | ;; If we have a window already, make it visible. | |
136 | (when window | |
137 | (let ((frame (window-frame window))) | |
138 | (make-frame-visible frame) | |
139 | (raise-frame frame) | |
140 | window)) | |
141 | ;; Reuse the current window if the user requested it. | |
142 | (when (cdr (assq 'same-window args)) | |
143 | (condition-case nil | |
144 | (progn (switch-to-buffer buffer) (selected-window)) | |
145 | (error nil))) | |
146 | ;; Stay on the same frame if requested. | |
147 | (when (or (cdr (assq 'same-frame args)) (cdr (assq 'same-window args))) | |
148 | (let* ((pop-up-frames nil) (pop-up-windows t) | |
149 | special-display-regexps special-display-buffer-names | |
150 | (window (display-buffer buffer))) | |
bb2c34b1 | 151 | ;; Only do it if this is a new window: |
7e573c4a SM |
152 | ;; (set-window-dedicated-p window t) |
153 | window)) | |
154 | ;; If no window yet, make one in a new frame. | |
bf247b6e | 155 | (let ((frame |
86bd482f RS |
156 | (with-current-buffer buffer |
157 | (make-frame (append args special-display-frame-alist))))) | |
7e573c4a SM |
158 | (set-window-buffer (frame-selected-window frame) buffer) |
159 | (set-window-dedicated-p (frame-selected-window frame) t) | |
160 | (frame-selected-window frame)))))) | |
8a9e86e6 | 161 | |
924be53a | 162 | (defun handle-delete-frame (event) |
40d34803 | 163 | "Handle delete-frame events from the X server." |
924be53a RS |
164 | (interactive "e") |
165 | (let ((frame (posn-window (event-start event))) | |
166 | (i 0) | |
167 | (tail (frame-list))) | |
168 | (while tail | |
169 | (and (frame-visible-p (car tail)) | |
170 | (not (eq (car tail) frame)) | |
171 | (setq i (1+ i))) | |
172 | (setq tail (cdr tail))) | |
173 | (if (> i 0) | |
174 | (delete-frame frame t) | |
a9562d19 RS |
175 | ;; Gildea@x.org says it is ok to ask questions before terminating. |
176 | (save-buffers-kill-emacs)))) | |
64c669bc | 177 | \f |
dc6d9681 | 178 | ;;;; Arrangement of frames at startup |
64c669bc | 179 | |
7e573c4a SM |
180 | ;; 1) Load the window system startup file from the lisp library and read the |
181 | ;; high-priority arguments (-q and the like). The window system startup | |
182 | ;; file should create any frames specified in the window system defaults. | |
183 | ;; | |
184 | ;; 2) If no frames have been opened, we open an initial text frame. | |
185 | ;; | |
186 | ;; 3) Once the init file is done, we apply any newly set parameters | |
187 | ;; in initial-frame-alist to the frame. | |
64c669bc | 188 | |
85557d7e | 189 | ;; These are now called explicitly at the proper times, |
fc4d4afb RS |
190 | ;; since that is easier to understand. |
191 | ;; Actually using hooks within Emacs is bad for future maintenance. --rms. | |
192 | ;; (add-hook 'before-init-hook 'frame-initialize) | |
193 | ;; (add-hook 'window-setup-hook 'frame-notice-user-settings) | |
64c669bc | 194 | |
7e573c4a | 195 | ;; If we create the initial frame, this is it. |
dc6d9681 | 196 | (defvar frame-initial-frame nil) |
64c669bc | 197 | |
3f2f8c83 RS |
198 | ;; Record the parameters used in frame-initialize to make the initial frame. |
199 | (defvar frame-initial-frame-alist) | |
200 | ||
791e09d8 RS |
201 | (defvar frame-initial-geometry-arguments nil) |
202 | ||
7e573c4a SM |
203 | ;; startup.el calls this function before loading the user's init |
204 | ;; file - if there is no frame with a minibuffer open now, create | |
205 | ;; one to display messages while loading the init file. | |
dc6d9681 | 206 | (defun frame-initialize () |
ff2a1c79 | 207 | "Create an initial frame if necessary." |
64c669bc | 208 | ;; Are we actually running under a window system at all? |
2246281f KL |
209 | (if (and initial-window-system |
210 | (not noninteractive) | |
211 | (not (eq initial-window-system 'pc))) | |
7eadab74 | 212 | (progn |
62642af9 RS |
213 | ;; Turn on special-display processing only if there's a window system. |
214 | (setq special-display-function 'special-display-popup-frame) | |
215 | ||
7eadab74 JB |
216 | ;; If there is no frame with a minibuffer besides the terminal |
217 | ;; frame, then we need to create the opening frame. Make sure | |
218 | ;; it has a minibuffer, but let initial-frame-alist omit the | |
219 | ;; minibuffer spec. | |
220 | (or (delq terminal-frame (minibuffer-frame-list)) | |
36fc9c9f | 221 | (progn |
3f2f8c83 | 222 | (setq frame-initial-frame-alist |
9688894d | 223 | (append initial-frame-alist default-frame-alist nil)) |
a8bb5882 RS |
224 | (or (assq 'horizontal-scroll-bars frame-initial-frame-alist) |
225 | (setq frame-initial-frame-alist | |
226 | (cons '(horizontal-scroll-bars . t) | |
227 | frame-initial-frame-alist))) | |
2246281f KL |
228 | (setq frame-initial-frame-alist |
229 | (cons (cons 'window-system initial-window-system) | |
230 | frame-initial-frame-alist)) | |
36fc9c9f RS |
231 | (setq default-minibuffer-frame |
232 | (setq frame-initial-frame | |
96a84970 | 233 | (make-frame frame-initial-frame-alist))) |
11281034 RS |
234 | ;; Delete any specifications for window geometry parameters |
235 | ;; so that we won't reapply them in frame-notice-user-settings. | |
236 | ;; It would be wrong to reapply them then, | |
237 | ;; because that would override explicit user resizing. | |
58bf6042 | 238 | (setq initial-frame-alist |
c2079f0a | 239 | (frame-remove-geometry-params initial-frame-alist)))) |
a13f8f50 KL |
240 | ;; Copy the environment of the Emacs process into the new frame. |
241 | (set-frame-parameter frame-initial-frame 'environment | |
242 | (frame-parameter terminal-frame 'environment)) | |
de87fb59 DN |
243 | (set-frame-parameter frame-initial-frame 'display-environment-variable |
244 | (getenv "DISPLAY")) | |
85557d7e | 245 | ;; At this point, we know that we have a frame open, so we |
dc6d9681 JB |
246 | ;; can delete the terminal frame. |
247 | (delete-frame terminal-frame) | |
2246281f | 248 | (setq terminal-frame nil)))) |
85557d7e | 249 | |
8f2a992b GM |
250 | (defvar frame-notice-user-settings t |
251 | "Non-nil means function `frame-notice-user-settings' wasn't run yet.") | |
252 | ||
7e573c4a SM |
253 | ;; startup.el calls this function after loading the user's init |
254 | ;; file. Now default-frame-alist and initial-frame-alist contain | |
255 | ;; information to which we must react; do what needs to be done. | |
dc6d9681 | 256 | (defun frame-notice-user-settings () |
40d34803 | 257 | "Act on user's init file settings of frame parameters. |
0e1bfc78 KL |
258 | React to settings of `initial-frame-alist', |
259 | `window-system-default-frame-alist' and `default-frame-alist' | |
260 | there (in decreasing order of priority)." | |
2ffa6186 | 261 | ;; Make menu-bar-mode and default-frame-alist consistent. |
61f2bcd7 GM |
262 | (when (boundp 'menu-bar-mode) |
263 | (let ((default (assq 'menu-bar-lines default-frame-alist))) | |
264 | (if default | |
265 | (setq menu-bar-mode (not (eq (cdr default) 0))) | |
266 | (setq default-frame-alist | |
267 | (cons (cons 'menu-bar-lines (if menu-bar-mode 1 0)) | |
268 | default-frame-alist))))) | |
f39784dd | 269 | |
33a33c06 GM |
270 | ;; Make tool-bar-mode and default-frame-alist consistent. Don't do |
271 | ;; it in batch mode since that would leave a tool-bar-lines | |
272 | ;; parameter in default-frame-alist in a dumped Emacs, which is not | |
9688894d | 273 | ;; what we want. |
33a33c06 | 274 | (when (and (boundp 'tool-bar-mode) |
095fe281 | 275 | (not noninteractive)) |
61f2bcd7 GM |
276 | (let ((default (assq 'tool-bar-lines default-frame-alist))) |
277 | (if default | |
095fe281 KL |
278 | (setq tool-bar-mode (not (eq (cdr default) 0))) |
279 | ;; If Emacs was started on a tty, changing default-frame-alist | |
280 | ;; would disable the toolbar on X frames created later. We | |
281 | ;; want to keep the default of showing a toolbar under X even | |
282 | ;; in this case. | |
283 | ;; | |
284 | ;; If the user explicitly called `tool-bar-mode' in .emacs, | |
285 | ;; then default-frame-alist is already changed anyway. | |
286 | (when initial-window-system | |
287 | (setq default-frame-alist | |
288 | (cons (cons 'tool-bar-lines (if tool-bar-mode 1 0)) | |
289 | default-frame-alist)))))) | |
2ffa6186 | 290 | |
7eadab74 JB |
291 | ;; Creating and deleting frames may shift the selected frame around, |
292 | ;; and thus the current buffer. Protect against that. We don't | |
293 | ;; want to use save-excursion here, because that may also try to set | |
294 | ;; the buffer of the selected window, which fails when the selected | |
295 | ;; window is the minibuffer. | |
0e1bfc78 KL |
296 | (let ((old-buffer (current-buffer)) |
297 | (window-system-frame-alist (cdr (assq initial-window-system | |
298 | window-system-default-frame-alist)))) | |
7eadab74 | 299 | |
8f2a992b GM |
300 | (when (and frame-notice-user-settings |
301 | (null frame-initial-frame)) | |
42002db5 EZ |
302 | ;; This case happens when we don't have a window system, and |
303 | ;; also for MS-DOS frames. | |
8f2a992b GM |
304 | (let ((parms (frame-parameters frame-initial-frame))) |
305 | ;; Don't change the frame names. | |
306 | (setq parms (delq (assq 'name parms) parms)) | |
307 | ;; Can't modify the minibuffer parameter, so don't try. | |
308 | (setq parms (delq (assq 'minibuffer parms) parms)) | |
309 | (modify-frame-parameters nil | |
2246281f | 310 | (if (null initial-window-system) |
42002db5 | 311 | (append initial-frame-alist |
0e1bfc78 | 312 | window-system-frame-alist |
42002db5 EZ |
313 | default-frame-alist |
314 | parms | |
315 | nil) | |
316 | ;; initial-frame-alist and | |
317 | ;; default-frame-alist were already | |
318 | ;; applied in pc-win.el. | |
319 | parms)) | |
2246281f | 320 | (if (null initial-window-system) ;; MS-DOS does this differently in pc-win.el |
42002db5 EZ |
321 | (let ((newparms (frame-parameters)) |
322 | (frame (selected-frame))) | |
323 | (tty-handle-reverse-video frame newparms) | |
324 | ;; If we changed the background color, we need to update | |
325 | ;; the background-mode parameter, and maybe some faces, | |
326 | ;; too. | |
327 | (when (assq 'background-color newparms) | |
328 | (unless (or (assq 'background-mode initial-frame-alist) | |
329 | (assq 'background-mode default-frame-alist)) | |
330 | (frame-set-background-mode frame)) | |
331 | (face-set-after-frame-default frame)))))) | |
8f2a992b | 332 | |
7eadab74 JB |
333 | ;; If the initial frame is still around, apply initial-frame-alist |
334 | ;; and default-frame-alist to it. | |
9688894d GM |
335 | (when (frame-live-p frame-initial-frame) |
336 | ||
337 | ;; When tool-bar has been switched off, correct the frame size | |
338 | ;; by the lines added in x-create-frame for the tool-bar and | |
339 | ;; switch `tool-bar-mode' off. | |
085ef9b3 GM |
340 | (when (display-graphic-p) |
341 | (let ((tool-bar-lines (or (assq 'tool-bar-lines initial-frame-alist) | |
0e1bfc78 | 342 | (assq 'tool-bar-lines window-system-frame-alist) |
085ef9b3 | 343 | (assq 'tool-bar-lines default-frame-alist)))) |
5c39a60f JR |
344 | (when (and tool-bar-originally-present |
345 | (or (null tool-bar-lines) | |
346 | (null (cdr tool-bar-lines)) | |
347 | (eq 0 (cdr tool-bar-lines)))) | |
085ef9b3 | 348 | (let* ((char-height (frame-char-height frame-initial-frame)) |
5c39a60f | 349 | (image-height tool-bar-images-pixel-height) |
085ef9b3 GM |
350 | (margin (cond ((and (consp tool-bar-button-margin) |
351 | (integerp (cdr tool-bar-button-margin)) | |
352 | (> tool-bar-button-margin 0)) | |
353 | (cdr tool-bar-button-margin)) | |
354 | ((and (integerp tool-bar-button-margin) | |
355 | (> tool-bar-button-margin 0)) | |
356 | tool-bar-button-margin) | |
357 | (t 0))) | |
358 | (relief (if (and (integerp tool-bar-button-relief) | |
359 | (> tool-bar-button-relief 0)) | |
360 | tool-bar-button-relief 3)) | |
f39784dd | 361 | (lines (/ (+ image-height |
085ef9b3 GM |
362 | (* 2 margin) |
363 | (* 2 relief) | |
364 | (1- char-height)) | |
365 | char-height)) | |
366 | (height (frame-parameter frame-initial-frame 'height)) | |
367 | (newparms (list (cons 'height (- height lines)))) | |
f39784dd | 368 | (initial-top (cdr (assq 'top |
085ef9b3 GM |
369 | frame-initial-geometry-arguments))) |
370 | (top (frame-parameter frame-initial-frame 'top))) | |
371 | (when (and (consp initial-top) (eq '- (car initial-top))) | |
7f18ce22 RS |
372 | (let ((adjusted-top |
373 | (cond ((and (consp top) | |
374 | (eq '+ (car top))) | |
375 | (list '+ | |
376 | (+ (cadr top) | |
377 | (* lines char-height)))) | |
378 | ((and (consp top) | |
379 | (eq '- (car top))) | |
380 | (list '- | |
381 | (- (cadr top) | |
382 | (* lines char-height)))) | |
383 | (t (+ top (* lines char-height)))))) | |
384 | (setq newparms | |
385 | (append newparms | |
386 | `((top . ,adjusted-top)) | |
387 | nil)))) | |
085ef9b3 GM |
388 | (modify-frame-parameters frame-initial-frame newparms) |
389 | (tool-bar-mode -1))))) | |
9688894d GM |
390 | |
391 | ;; The initial frame we create above always has a minibuffer. | |
392 | ;; If the user wants to remove it, or make it a minibuffer-only | |
393 | ;; frame, then we'll have to delete the current frame and make a | |
394 | ;; new one; you can't remove or add a root window to/from an | |
395 | ;; existing frame. | |
396 | ;; | |
397 | ;; NOTE: default-frame-alist was nil when we created the | |
398 | ;; existing frame. We need to explicitly include | |
399 | ;; default-frame-alist in the parameters of the screen we | |
400 | ;; create here, so that its new value, gleaned from the user's | |
401 | ;; .emacs file, will be applied to the existing screen. | |
de2f5dbe | 402 | (if (not (eq (cdr (or (assq 'minibuffer initial-frame-alist) |
0e1bfc78 | 403 | (assq 'minibuffer window-system-frame-alist) |
de2f5dbe GM |
404 | (assq 'minibuffer default-frame-alist) |
405 | '(minibuffer . t))) | |
406 | t)) | |
407 | ;; Create the new frame. | |
408 | (let (parms new) | |
409 | ;; If the frame isn't visible yet, wait till it is. | |
410 | ;; If the user has to position the window, | |
411 | ;; Emacs doesn't know its real position until | |
412 | ;; the frame is seen to be visible. | |
413 | (while (not (cdr (assq 'visibility | |
414 | (frame-parameters frame-initial-frame)))) | |
415 | (sleep-for 1)) | |
416 | (setq parms (frame-parameters frame-initial-frame)) | |
9688894d | 417 | |
f39784dd | 418 | ;; Get rid of `name' unless it was specified explicitly before. |
de2f5dbe GM |
419 | (or (assq 'name frame-initial-frame-alist) |
420 | (setq parms (delq (assq 'name parms) parms))) | |
421 | ||
422 | (setq parms (append initial-frame-alist | |
0e1bfc78 | 423 | window-system-frame-alist |
de2f5dbe GM |
424 | default-frame-alist |
425 | parms | |
426 | nil)) | |
427 | ||
428 | ;; Get rid of `reverse', because that was handled | |
429 | ;; when we first made the frame. | |
430 | (setq parms (cons '(reverse) (delq (assq 'reverse parms) parms))) | |
431 | ||
432 | (if (assq 'height frame-initial-geometry-arguments) | |
433 | (setq parms (assq-delete-all 'height parms))) | |
434 | (if (assq 'width frame-initial-geometry-arguments) | |
435 | (setq parms (assq-delete-all 'width parms))) | |
436 | (if (assq 'left frame-initial-geometry-arguments) | |
437 | (setq parms (assq-delete-all 'left parms))) | |
438 | (if (assq 'top frame-initial-geometry-arguments) | |
439 | (setq parms (assq-delete-all 'top parms))) | |
440 | (setq new | |
441 | (make-frame | |
442 | ;; Use the geometry args that created the existing | |
443 | ;; frame, rather than the parms we get for it. | |
444 | (append frame-initial-geometry-arguments | |
445 | '((user-size . t) (user-position . t)) | |
446 | parms))) | |
447 | ;; The initial frame, which we are about to delete, may be | |
448 | ;; the only frame with a minibuffer. If it is, create a | |
449 | ;; new one. | |
450 | (or (delq frame-initial-frame (minibuffer-frame-list)) | |
451 | (make-initial-minibuffer-frame nil)) | |
452 | ||
453 | ;; If the initial frame is serving as a surrogate | |
454 | ;; minibuffer frame for any frames, we need to wean them | |
455 | ;; onto a new frame. The default-minibuffer-frame | |
456 | ;; variable must be handled similarly. | |
457 | (let ((users-of-initial | |
458 | (filtered-frame-list | |
b7de6024 SM |
459 | (lambda (frame) |
460 | (and (not (eq frame frame-initial-frame)) | |
461 | (eq (window-frame | |
462 | (minibuffer-window frame)) | |
463 | frame-initial-frame)))))) | |
464 | (if (or users-of-initial | |
de2f5dbe GM |
465 | (eq default-minibuffer-frame frame-initial-frame)) |
466 | ||
467 | ;; Choose an appropriate frame. Prefer frames which | |
468 | ;; are only minibuffers. | |
469 | (let* ((new-surrogate | |
470 | (car | |
471 | (or (filtered-frame-list | |
b7de6024 SM |
472 | (lambda (frame) |
473 | (eq (cdr (assq 'minibuffer | |
474 | (frame-parameters frame))) | |
475 | 'only))) | |
de2f5dbe GM |
476 | (minibuffer-frame-list)))) |
477 | (new-minibuffer (minibuffer-window new-surrogate))) | |
478 | ||
479 | (if (eq default-minibuffer-frame frame-initial-frame) | |
480 | (setq default-minibuffer-frame new-surrogate)) | |
481 | ||
482 | ;; Wean the frames using frame-initial-frame as | |
483 | ;; their minibuffer frame. | |
b7de6024 SM |
484 | (dolist (frame users-of-initial) |
485 | (modify-frame-parameters | |
486 | frame (list (cons 'minibuffer new-minibuffer))))))) | |
487 | ||
488 | ;; Redirect events enqueued at this frame to the new frame. | |
de2f5dbe GM |
489 | ;; Is this a good idea? |
490 | (redirect-frame-focus frame-initial-frame new) | |
491 | ||
492 | ;; Finally, get rid of the old frame. | |
493 | (delete-frame frame-initial-frame t)) | |
9688894d GM |
494 | |
495 | ;; Otherwise, we don't need all that rigamarole; just apply | |
496 | ;; the new parameters. | |
497 | (let (newparms allparms tail) | |
498 | (setq allparms (append initial-frame-alist | |
0e1bfc78 | 499 | window-system-frame-alist |
9688894d GM |
500 | default-frame-alist nil)) |
501 | (if (assq 'height frame-initial-geometry-arguments) | |
502 | (setq allparms (assq-delete-all 'height allparms))) | |
503 | (if (assq 'width frame-initial-geometry-arguments) | |
504 | (setq allparms (assq-delete-all 'width allparms))) | |
505 | (if (assq 'left frame-initial-geometry-arguments) | |
506 | (setq allparms (assq-delete-all 'left allparms))) | |
507 | (if (assq 'top frame-initial-geometry-arguments) | |
508 | (setq allparms (assq-delete-all 'top allparms))) | |
509 | (setq tail allparms) | |
510 | ;; Find just the parms that have changed since we first | |
511 | ;; made this frame. Those are the ones actually set by | |
f39784dd | 512 | ;; the init file. For those parms whose values we already knew |
9688894d GM |
513 | ;; (such as those spec'd by command line options) |
514 | ;; it is undesirable to specify the parm again | |
f39784dd | 515 | ;; once the user has seen the frame and been able to alter it |
9688894d GM |
516 | ;; manually. |
517 | (while tail | |
518 | (let (newval oldval) | |
519 | (setq oldval (assq (car (car tail)) | |
520 | frame-initial-frame-alist)) | |
521 | (setq newval (cdr (assq (car (car tail)) allparms))) | |
522 | (or (and oldval (eq (cdr oldval) newval)) | |
523 | (setq newparms | |
524 | (cons (cons (car (car tail)) newval) newparms)))) | |
525 | (setq tail (cdr tail))) | |
526 | (setq newparms (nreverse newparms)) | |
527 | (modify-frame-parameters frame-initial-frame | |
528 | newparms) | |
529 | ;; If we changed the background color, | |
530 | ;; we need to update the background-mode parameter | |
531 | ;; and maybe some faces too. | |
532 | (when (assq 'background-color newparms) | |
533 | (unless (assq 'background-mode newparms) | |
534 | (frame-set-background-mode frame-initial-frame)) | |
535 | (face-set-after-frame-default frame-initial-frame))))) | |
64c669bc | 536 | |
7eadab74 JB |
537 | ;; Restore the original buffer. |
538 | (set-buffer old-buffer) | |
539 | ||
540 | ;; Make sure the initial frame can be GC'd if it is ever deleted. | |
d202f1f2 | 541 | ;; Make sure frame-notice-user-settings does nothing if called twice. |
8f2a992b | 542 | (setq frame-notice-user-settings nil) |
d202f1f2 | 543 | (setq frame-initial-frame nil))) |
64c669bc | 544 | |
746bd265 KH |
545 | (defun make-initial-minibuffer-frame (display) |
546 | (let ((parms (append minibuffer-frame-alist '((minibuffer . only))))) | |
547 | (if display | |
548 | (make-frame-on-display display parms) | |
549 | (make-frame parms)))) | |
550 | ||
7eadab74 | 551 | ;;;; Creation of additional frames, and other frame miscellanea |
dc6d9681 | 552 | |
63019bad | 553 | (defun modify-all-frames-parameters (alist) |
d398de43 | 554 | "Modify all current and future frames' parameters according to ALIST. |
63019bad | 555 | This changes `default-frame-alist' and possibly `initial-frame-alist'. |
095fe281 KL |
556 | Furthermore, this function removes all parameters in ALIST from |
557 | `window-system-default-frame-alist'. | |
63019bad | 558 | See help of `modify-frame-parameters' for more information." |
095fe281 KL |
559 | (dolist (frame (frame-list)) |
560 | (modify-frame-parameters frame alist)) | |
561 | ||
562 | (dolist (pair alist) ;; conses to add/replace | |
563 | ;; initial-frame-alist needs setting only when | |
564 | ;; frame-notice-user-settings is true. | |
565 | (and frame-notice-user-settings | |
566 | (setq initial-frame-alist | |
567 | (assq-delete-all (car pair) initial-frame-alist))) | |
568 | (setq default-frame-alist | |
569 | (assq-delete-all (car pair) default-frame-alist)) | |
570 | ;; Remove any similar settings from the window-system specific | |
571 | ;; parameters---they would override default-frame-alist. | |
572 | (dolist (w window-system-default-frame-alist) | |
573 | (setcdr w (assq-delete-all (car pair) (cdr w))))) | |
574 | ||
63019bad JB |
575 | (and frame-notice-user-settings |
576 | (setq initial-frame-alist (append initial-frame-alist alist))) | |
577 | (setq default-frame-alist (append default-frame-alist alist))) | |
578 | ||
7253d8e0 | 579 | (defun get-other-frame () |
40d34803 DL |
580 | "Return some frame other than the current frame. |
581 | Create one if necessary. Note that the minibuffer frame, if separate, | |
582 | is not considered (see `next-frame')." | |
dc6d9681 | 583 | (let ((s (if (equal (next-frame (selected-frame)) (selected-frame)) |
6eb018ba | 584 | (make-frame) |
dc6d9681 | 585 | (next-frame (selected-frame))))) |
64c669bc JB |
586 | s)) |
587 | ||
dc6d9681 JB |
588 | (defun next-multiframe-window () |
589 | "Select the next window, regardless of which frame it is on." | |
64c669bc JB |
590 | (interactive) |
591 | (select-window (next-window (selected-window) | |
592 | (> (minibuffer-depth) 0) | |
bb2c34b1 | 593 | 0)) |
030f4537 | 594 | (select-frame-set-input-focus (selected-frame))) |
64c669bc | 595 | |
dc6d9681 JB |
596 | (defun previous-multiframe-window () |
597 | "Select the previous window, regardless of which frame it is on." | |
64c669bc JB |
598 | (interactive) |
599 | (select-window (previous-window (selected-window) | |
600 | (> (minibuffer-depth) 0) | |
bb2c34b1 | 601 | 0)) |
030f4537 | 602 | (select-frame-set-input-focus (selected-frame))) |
64c669bc | 603 | |
6d73e337 | 604 | (defun make-frame-on-display (display &optional parameters) |
b6660415 | 605 | "Make a frame on X display DISPLAY. |
6d73e337 RS |
606 | The optional second argument PARAMETERS specifies additional frame parameters." |
607 | (interactive "sMake frame on display: ") | |
a9ca74cd RS |
608 | (or (string-match "\\`[^:]*:[0-9]+\\(\\.[0-9]+\\)?\\'" display) |
609 | (error "Invalid display, not HOST:SERVER or HOST:SERVER.SCREEN")) | |
6afdd335 | 610 | (when (and (boundp 'x-initialized) (not x-initialized)) |
e9cda827 KL |
611 | (setq x-display-name display) |
612 | (x-initialize-window-system)) | |
2246281f | 613 | (make-frame `((window-system . x) (display . ,display) . ,parameters))) |
6d73e337 | 614 | |
f35ca2fe KL |
615 | (defun make-frame-on-tty (tty type &optional parameters) |
616 | "Make a frame on terminal device TTY. | |
617 | TTY should be the file name of the tty device to use. TYPE | |
618 | should be the terminal type string of TTY, for example \"xterm\" | |
619 | or \"vt100\". The optional third argument PARAMETERS specifies | |
620 | additional frame parameters." | |
428a555e | 621 | (interactive "fOpen frame on tty device: \nsTerminal type of %s: ") |
f35ca2fe | 622 | (unless tty |
fca177d4 KL |
623 | (error "Invalid terminal device")) |
624 | (unless type | |
625 | (error "Invalid terminal type")) | |
f35ca2fe | 626 | (make-frame `((window-system . nil) (tty . ,tty) (tty-type . ,type) . ,parameters))) |
fca177d4 | 627 | |
b7de6024 SM |
628 | (defun close-display-connection (display) |
629 | "Close the connection to a display, deleting all its associated frames. | |
630 | For DISPLAY, specify either a frame or a display name (a string). | |
631 | If DISPLAY is nil, that stands for the selected frame's display." | |
632 | (interactive | |
633 | (list | |
634 | (let* ((default (frame-parameter nil 'display)) | |
635 | (display (completing-read | |
636 | (format "Close display (default %s): " default) | |
637 | (delete-dups | |
638 | (mapcar (lambda (frame) | |
639 | (frame-parameter frame 'display)) | |
640 | (frame-list))) | |
641 | nil t nil nil | |
642 | default))) | |
643 | (if (zerop (length display)) default display)))) | |
644 | (let ((frames (delq nil | |
645 | (mapcar (lambda (frame) | |
646 | (if (equal display | |
647 | (frame-parameter frame 'display)) | |
648 | frame)) | |
649 | (frame-list))))) | |
650 | (if (and (consp frames) | |
651 | (not (y-or-n-p (if (cdr frames) | |
652 | (format "Delete %s frames? " (length frames)) | |
653 | (format "Delete %s ? " (car frames)))))) | |
654 | (error "Abort!") | |
655 | (mapc 'delete-frame frames) | |
656 | (x-close-connection display)))) | |
657 | ||
6238bfaf RS |
658 | (defun make-frame-command () |
659 | "Make a new frame, and select it if the terminal displays only one frame." | |
660 | (interactive) | |
c1b1350b | 661 | (if (and window-system (not (eq window-system 'pc))) |
6238bfaf RS |
662 | (make-frame) |
663 | (select-frame (make-frame)))) | |
664 | ||
45c4fdeb SM |
665 | (defvar before-make-frame-hook nil |
666 | "Functions to run before a frame is created.") | |
667 | ||
668 | (defvar after-make-frame-functions nil | |
669 | "Functions to run after a frame is created. | |
670 | The functions are run with one arg, the newly created frame.") | |
671 | ||
72bf1a8b | 672 | (defvar after-setting-font-hook nil |
81b99826 GM |
673 | "Functions to run after a frame's font has been changed.") |
674 | ||
92e443b1 | 675 | ;; Alias, kept temporarily. |
84ed1560 | 676 | (define-obsolete-function-alias 'new-frame 'make-frame "22.1") |
bc93c097 | 677 | |
45c4fdeb SM |
678 | (defun make-frame (&optional parameters) |
679 | "Return a newly created frame displaying the current buffer. | |
680 | Optional argument PARAMETERS is an alist of parameters for the new frame. | |
681 | Each element of PARAMETERS should have the form (NAME . VALUE), for example: | |
a105105a | 682 | |
45c4fdeb | 683 | (name . STRING) The frame should be named STRING. |
43a2e52c | 684 | |
45c4fdeb SM |
685 | (width . NUMBER) The frame should be NUMBER characters in width. |
686 | (height . NUMBER) The frame should be NUMBER text lines high. | |
43a2e52c | 687 | |
45c4fdeb | 688 | You cannot specify either `width' or `height', you must use neither or both. |
43a2e52c | 689 | |
45c4fdeb SM |
690 | (minibuffer . t) The frame should have a minibuffer. |
691 | (minibuffer . nil) The frame should have no minibuffer. | |
692 | (minibuffer . only) The frame should contain only a minibuffer. | |
693 | (minibuffer . WINDOW) The frame should use WINDOW as its minibuffer window. | |
43a2e52c | 694 | |
2246281f KL |
695 | (window-system . nil) The frame should be displayed on a terminal device. |
696 | (window-system . x) The frame should be displayed in an X window. | |
697 | ||
6ed8eeff | 698 | (terminal . ID) The frame should use the terminal identified by ID. |
b6660415 | 699 | |
2246281f | 700 | Before the frame is created (via `frame-creation-function-alist'), functions on the |
45c4fdeb | 701 | hook `before-make-frame-hook' are run. After the frame is created, functions |
8de9d3f6 LT |
702 | on `after-make-frame-functions' are run with one arg, the newly created frame. |
703 | ||
704 | This function itself does not make the new frame the selected frame. | |
705 | The previously selected frame remains selected. However, the | |
706 | window system may select the new frame for its own reasons, for | |
707 | instance if the frame appears under the mouse pointer and your | |
708 | setup is for focus to follow the pointer." | |
64c669bc | 709 | (interactive) |
b6660415 | 710 | (let* ((w (cond |
6ed8eeff KL |
711 | ((assq 'terminal parameters) |
712 | (let ((type (terminal-live-p (cdr (assq 'terminal parameters))))) | |
b6660415 KL |
713 | (cond |
714 | ((eq type t) nil) | |
6ed8eeff | 715 | ((eq type nil) (error "Terminal %s does not exist" (cdr (assq 'terminal parameters)))) |
b6660415 KL |
716 | (t type)))) |
717 | ((assq 'window-system parameters) | |
718 | (cdr (assq 'window-system parameters))) | |
719 | (t window-system))) | |
2246281f | 720 | (frame-creation-function (cdr (assq w frame-creation-function-alist))) |
da8e8fc1 | 721 | (oldframe (selected-frame)) |
2246281f KL |
722 | frame) |
723 | (unless frame-creation-function | |
724 | (error "Don't know how to create a frame on window system %s" w)) | |
725 | (run-hooks 'before-make-frame-hook) | |
e682e37e | 726 | (setq frame (funcall frame-creation-function (append parameters (cdr (assq w window-system-default-frame-alist))))) |
30a2fded | 727 | (normal-erase-is-backspace-setup-frame frame) |
d7a0175d KL |
728 | ;; Inherit the 'environment and 'client parameters. |
729 | (let ((env (frame-parameter oldframe 'environment)) | |
de87fb59 | 730 | (client (frame-parameter oldframe 'client)) |
de87fb59 | 731 | (displayenv (frame-parameter oldframe 'display-environment-variable))) |
d7a0175d KL |
732 | (if (not (framep env)) |
733 | (setq env oldframe)) | |
734 | (if (and env (not (assq 'environment parameters))) | |
735 | (set-frame-parameter frame 'environment env)) | |
de87fb59 DN |
736 | (if (and displayenv (not (assq 'display-environment-variable parameters))) |
737 | (set-frame-parameter frame 'display-environment-variable displayenv)) | |
d7a0175d KL |
738 | (if (and client (not (assq 'client parameters))) |
739 | (set-frame-parameter frame 'client client))) | |
45c4fdeb SM |
740 | (run-hook-with-args 'after-make-frame-functions frame) |
741 | frame)) | |
64c669bc | 742 | |
7eadab74 JB |
743 | (defun filtered-frame-list (predicate) |
744 | "Return a list of all live frames which satisfy PREDICATE." | |
047bc928 GM |
745 | (let* ((frames (frame-list)) |
746 | (list frames)) | |
7eadab74 | 747 | (while (consp frames) |
047bc928 GM |
748 | (unless (funcall predicate (car frames)) |
749 | (setcar frames nil)) | |
7eadab74 | 750 | (setq frames (cdr frames))) |
047bc928 | 751 | (delq nil list))) |
7eadab74 JB |
752 | |
753 | (defun minibuffer-frame-list () | |
754 | "Return a list of all frames with their own minibuffers." | |
755 | (filtered-frame-list | |
b7de6024 SM |
756 | (lambda (frame) |
757 | (eq frame (window-frame (minibuffer-window frame)))))) | |
7eadab74 | 758 | |
371fed4e SM |
759 | ;; Used to be called `terminal-id' in termdev.el. |
760 | (defun get-device-terminal (device) | |
761 | "Return the terminal corresponding to DEVICE. | |
762 | DEVICE can be a terminal, a frame, nil (meaning the selected frame's terminal), | |
763 | the name of an X display device (HOST.SERVER.SCREEN) or a tty device file." | |
764 | (cond | |
765 | ((or (null device) (framep device)) | |
766 | (frame-terminal device)) | |
767 | ((stringp device) | |
768 | (let ((f (car (filtered-frame-list | |
769 | (lambda (frame) | |
770 | (or (equal (frame-parameter frame 'display) device) | |
771 | (equal (frame-parameter frame 'tty) device))))))) | |
772 | (or f (error "Display %s does not exist" device)) | |
773 | (frame-terminal f))) | |
774 | ((terminal-live-p device) device) | |
775 | (t | |
776 | (error "Invalid argument %s in `get-device-terminal'" device)))) | |
777 | ||
778 | (defun frames-on-display-list (&optional device) | |
779 | "Return a list of all frames on DEVICE. | |
780 | ||
781 | DEVICE should be a terminal, a frame, | |
782 | or a name of an X display or tty (a string of the form | |
9684e4c9 | 783 | HOST:SERVER.SCREEN). |
b6660415 | 784 | |
371fed4e | 785 | If DEVICE is omitted or nil, it defaults to the selected |
9684e4c9 | 786 | frame's terminal device." |
371fed4e | 787 | (let* ((terminal (get-device-terminal device)) |
047bc928 | 788 | (func #'(lambda (frame) |
6ed8eeff | 789 | (eq (frame-terminal frame) terminal)))) |
9911648b EZ |
790 | (filtered-frame-list func))) |
791 | ||
f35ca2fe KL |
792 | (defun framep-on-display (&optional terminal) |
793 | "Return the type of frames on TERMINAL. | |
794 | TERMINAL may be a terminal id, a display name or a frame. If it | |
795 | is a frame, its type is returned. If TERMINAL is omitted or nil, | |
796 | it defaults to the selected frame's terminal device. All frames | |
797 | on a given display are of the same type." | |
6ed8eeff | 798 | (or (terminal-live-p terminal) |
f35ca2fe KL |
799 | (framep terminal) |
800 | (framep (car (frames-on-display-list terminal))))) | |
9911648b | 801 | |
58bf6042 JB |
802 | (defun frame-remove-geometry-params (param-list) |
803 | "Return the parameter list PARAM-LIST, but with geometry specs removed. | |
804 | This deletes all bindings in PARAM-LIST for `top', `left', `width', | |
791e09d8 | 805 | `height', `user-size' and `user-position' parameters. |
58bf6042 JB |
806 | Emacs uses this to avoid overriding explicit moves and resizings from |
807 | the user during startup." | |
808 | (setq param-list (cons nil param-list)) | |
809 | (let ((tail param-list)) | |
810 | (while (consp (cdr tail)) | |
811 | (if (and (consp (car (cdr tail))) | |
791e09d8 RS |
812 | (memq (car (car (cdr tail))) |
813 | '(height width top left user-position user-size))) | |
814 | (progn | |
815 | (setq frame-initial-geometry-arguments | |
816 | (cons (car (cdr tail)) frame-initial-geometry-arguments)) | |
817 | (setcdr tail (cdr (cdr tail)))) | |
58bf6042 | 818 | (setq tail (cdr tail))))) |
e11c3dc2 KH |
819 | (setq frame-initial-geometry-arguments |
820 | (nreverse frame-initial-geometry-arguments)) | |
58bf6042 JB |
821 | (cdr param-list)) |
822 | ||
2ff62eac | 823 | (defcustom focus-follows-mouse (not (eq window-system 'mac)) |
6527c9b7 RS |
824 | "*Non-nil if window system changes focus when you move the mouse. |
825 | You should set this variable to tell Emacs how your window manager | |
826 | handles focus, since there is no way in general for Emacs to find out | |
38938eeb EZ |
827 | automatically. |
828 | ||
829 | This variable does not have any effect on MS-Windows." | |
0ac18fb0 | 830 | :type 'boolean |
cd32a7ba DN |
831 | :group 'frames |
832 | :version "20.3") | |
26ef026d | 833 | |
030f4537 GM |
834 | (defun select-frame-set-input-focus (frame) |
835 | "Select FRAME, raise it, and set input focus, if possible." | |
836 | (select-frame frame) | |
837 | (raise-frame frame) | |
838 | ;; Ensure, if possible, that frame gets input focus. | |
31e0520c JR |
839 | (cond ((memq (window-system frame) '(x max w32)) |
840 | (x-focus-frame frame))) | |
030f4537 | 841 | (cond (focus-follows-mouse |
80c39c38 | 842 | (set-mouse-position (selected-frame) (1- (frame-width)) 0)))) |
030f4537 | 843 | |
ceab6935 | 844 | (defun other-frame (arg) |
c2c93894 | 845 | "Select the ARGth different visible frame on current display, and raise it. |
ceab6935 RM |
846 | All frames are arranged in a cyclic order. |
847 | This command selects the frame ARG steps away in that order. | |
bb578a72 RS |
848 | A negative ARG moves in the opposite order. |
849 | ||
850 | To make this command work properly, you must tell Emacs | |
851 | how the system (or the window manager) generally handles | |
852 | focus-switching between windows. If moving the mouse onto a window | |
853 | selects it (gives it focus), set `focus-follows-mouse' to t. | |
854 | Otherwise, that variable should be nil." | |
ceab6935 RM |
855 | (interactive "p") |
856 | (let ((frame (selected-frame))) | |
857 | (while (> arg 0) | |
a569dbc3 RM |
858 | (setq frame (next-frame frame)) |
859 | (while (not (eq (frame-visible-p frame) t)) | |
860 | (setq frame (next-frame frame))) | |
861 | (setq arg (1- arg))) | |
ceab6935 | 862 | (while (< arg 0) |
a569dbc3 RM |
863 | (setq frame (previous-frame frame)) |
864 | (while (not (eq (frame-visible-p frame) t)) | |
865 | (setq frame (previous-frame frame))) | |
915cfd1f | 866 | (setq arg (1+ arg))) |
030f4537 | 867 | (select-frame-set-input-focus frame))) |
845cde06 | 868 | |
3db7df06 SM |
869 | (defun iconify-or-deiconify-frame () |
870 | "Iconify the selected frame, or deiconify if it's currently an icon." | |
871 | (interactive) | |
872 | (if (eq (cdr (assq 'visibility (frame-parameters))) t) | |
873 | (iconify-frame) | |
874 | (make-frame-visible))) | |
875 | ||
0b0d3e0b KL |
876 | (defun suspend-frame () |
877 | "Do whatever is right to suspend the current frame. | |
f35ca2fe KL |
878 | Calls `suspend-emacs' if invoked from the controlling tty device, |
879 | `suspend-tty' from a secondary tty device, and | |
0b0d3e0b KL |
880 | `iconify-or-deiconify-frame' from an X frame." |
881 | (interactive) | |
882 | (let ((type (framep (selected-frame)))) | |
883 | (cond | |
884 | ((eq type 'x) (iconify-or-deiconify-frame)) | |
885 | ((eq type t) | |
6ed8eeff | 886 | (if (controlling-tty-p) |
4a933ef8 KL |
887 | (suspend-emacs) |
888 | (suspend-tty))) | |
0b0d3e0b KL |
889 | (t (suspend-emacs))))) |
890 | ||
845cde06 EZ |
891 | (defun make-frame-names-alist () |
892 | (let* ((current-frame (selected-frame)) | |
893 | (falist | |
894 | (cons | |
895 | (cons (frame-parameter current-frame 'name) current-frame) nil)) | |
896 | (frame (next-frame nil t))) | |
897 | (while (not (eq frame current-frame)) | |
898 | (progn | |
899 | (setq falist (cons (cons (frame-parameter frame 'name) frame) falist)) | |
900 | (setq frame (next-frame frame t)))) | |
901 | falist)) | |
902 | ||
903 | (defvar frame-name-history nil) | |
845cde06 | 904 | (defun select-frame-by-name (name) |
563283b1 | 905 | "Select the frame on the current terminal whose name is NAME and raise it. |
845cde06 EZ |
906 | If there is no frame by that name, signal an error." |
907 | (interactive | |
716ff1c9 RS |
908 | (let* ((frame-names-alist (make-frame-names-alist)) |
909 | (default (car (car frame-names-alist))) | |
910 | (input (completing-read | |
911 | (format "Select Frame (default %s): " default) | |
912 | frame-names-alist nil t nil 'frame-name-history))) | |
845cde06 EZ |
913 | (if (= (length input) 0) |
914 | (list default) | |
915 | (list input)))) | |
716ff1c9 RS |
916 | (let* ((frame-names-alist (make-frame-names-alist)) |
917 | (frame (cdr (assoc name frame-names-alist)))) | |
845cde06 EZ |
918 | (or frame |
919 | (error "There is no frame named `%s'" name)) | |
920 | (make-frame-visible frame) | |
921 | (raise-frame frame) | |
880a9ae1 AI |
922 | (select-frame frame) |
923 | ;; Ensure, if possible, that frame gets input focus. | |
31e0520c JR |
924 | (cond ((memq (window-system frame) '(x w32)) |
925 | (x-focus-frame frame))) | |
80c39c38 RS |
926 | (when focus-follows-mouse |
927 | (set-mouse-position frame (1- (frame-width frame)) 0)))) | |
64c669bc | 928 | \f |
dc6d9681 JB |
929 | ;;;; Frame configurations |
930 | ||
931 | (defun current-frame-configuration () | |
932 | "Return a list describing the positions and states of all frames. | |
376a7584 JB |
933 | Its car is `frame-configuration'. |
934 | Each element of the cdr is a list of the form (FRAME ALIST WINDOW-CONFIG), | |
935 | where | |
936 | FRAME is a frame object, | |
937 | ALIST is an association list specifying some of FRAME's parameters, and | |
938 | WINDOW-CONFIG is a window configuration object for FRAME." | |
939 | (cons 'frame-configuration | |
b7de6024 SM |
940 | (mapcar (lambda (frame) |
941 | (list frame | |
942 | (frame-parameters frame) | |
943 | (current-window-configuration frame))) | |
376a7584 | 944 | (frame-list)))) |
dc6d9681 | 945 | |
68cd265f | 946 | (defun set-frame-configuration (configuration &optional nodelete) |
dc6d9681 JB |
947 | "Restore the frames to the state described by CONFIGURATION. |
948 | Each frame listed in CONFIGURATION has its position, size, window | |
68cd265f | 949 | configuration, and other parameters set as specified in CONFIGURATION. |
d398de43 LT |
950 | However, this function does not restore deleted frames. |
951 | ||
a78db71c RS |
952 | Ordinarily, this function deletes all existing frames not |
953 | listed in CONFIGURATION. But if optional second argument NODELETE | |
5da841d2 | 954 | is given and non-nil, the unwanted frames are iconified instead." |
376a7584 JB |
955 | (or (frame-configuration-p configuration) |
956 | (signal 'wrong-type-argument | |
957 | (list 'frame-configuration-p configuration))) | |
958 | (let ((config-alist (cdr configuration)) | |
959 | frames-to-delete) | |
b7de6024 SM |
960 | (dolist (frame (frame-list)) |
961 | (let ((parameters (assq frame config-alist))) | |
962 | (if parameters | |
963 | (progn | |
964 | (modify-frame-parameters | |
965 | frame | |
966 | ;; Since we can't set a frame's minibuffer status, | |
967 | ;; we might as well omit the parameter altogether. | |
968 | (let* ((parms (nth 1 parameters)) | |
969 | (mini (assq 'minibuffer parms))) | |
970 | (if mini (setq parms (delq mini parms))) | |
971 | parms)) | |
972 | (set-window-configuration (nth 2 parameters))) | |
973 | (setq frames-to-delete (cons frame frames-to-delete))))) | |
974 | (mapc (if nodelete | |
975 | ;; Note: making frames invisible here was tried | |
976 | ;; but led to some strange behavior--each time the frame | |
977 | ;; was made visible again, the window manager asked afresh | |
978 | ;; for where to put it. | |
979 | 'iconify-frame | |
980 | 'delete-frame) | |
981 | frames-to-delete))) | |
64c669bc | 982 | \f |
dc6d9681 JB |
983 | ;;;; Convenience functions for accessing and interactively changing |
984 | ;;;; frame parameters. | |
64c669bc | 985 | |
151bdc83 | 986 | (defun frame-height (&optional frame) |
dc6d9681 JB |
987 | "Return number of lines available for display on FRAME. |
988 | If FRAME is omitted, describe the currently selected frame." | |
151bdc83 | 989 | (cdr (assq 'height (frame-parameters frame)))) |
dc6d9681 JB |
990 | |
991 | (defun frame-width (&optional frame) | |
992 | "Return number of columns available for display on FRAME. | |
993 | If FRAME is omitted, describe the currently selected frame." | |
151bdc83 | 994 | (cdr (assq 'width (frame-parameters frame)))) |
dc6d9681 | 995 | |
889611f0 | 996 | (defalias 'set-default-font 'set-frame-font) |
1cef6541 | 997 | (defun set-frame-font (font-name &optional keep-size) |
40d34803 | 998 | "Set the font of the selected frame to FONT-NAME. |
61298010 | 999 | When called interactively, prompt for the name of the font to use. |
1cef6541 JB |
1000 | To get the frame's current default font, use `frame-parameters'. |
1001 | ||
1002 | The default behavior is to keep the numbers of lines and columns in | |
84ed1560 | 1003 | the frame, thus may change its pixel size. If optional KEEP-SIZE is |
1cef6541 JB |
1004 | non-nil (interactively, prefix argument) the current frame size (in |
1005 | pixels) is kept by adjusting the numbers of the lines and columns." | |
f39784dd | 1006 | (interactive |
1cef6541 JB |
1007 | (let* ((completion-ignore-case t) |
1008 | (font (completing-read "Font name: " | |
1cef6541 JB |
1009 | ;; x-list-fonts will fail with an error |
1010 | ;; if this frame doesn't support fonts. | |
b7de6024 SM |
1011 | (x-list-fonts "*" nil (selected-frame)) |
1012 | nil nil nil nil | |
1013 | (frame-parameter nil 'font)))) | |
1cef6541 JB |
1014 | (list font current-prefix-arg))) |
1015 | (let (fht fwd) | |
1016 | (if keep-size | |
1017 | (setq fht (* (frame-parameter nil 'height) (frame-char-height)) | |
1018 | fwd (* (frame-parameter nil 'width) (frame-char-width)))) | |
1019 | (modify-frame-parameters (selected-frame) | |
1020 | (list (cons 'font font-name))) | |
1021 | (if keep-size | |
1022 | (modify-frame-parameters | |
1023 | (selected-frame) | |
1024 | (list (cons 'height (round fht (frame-char-height))) | |
1025 | (cons 'width (round fwd (frame-char-width))))))) | |
72bf1a8b | 1026 | (run-hooks 'after-setting-font-hook 'after-setting-font-hooks)) |
64c669bc | 1027 | |
7e573c4a | 1028 | (defun set-frame-parameter (frame parameter value) |
0dac35b8 KL |
1029 | "Set frame parameter PARAMETER to VALUE on FRAME. |
1030 | If FRAME is nil, it defaults to the selected frame. | |
c2c93894 | 1031 | See `modify-frame-parameters'." |
7e573c4a SM |
1032 | (modify-frame-parameters frame (list (cons parameter value)))) |
1033 | ||
8290babd | 1034 | (defun set-background-color (color-name) |
40d34803 | 1035 | "Set the background color of the selected frame to COLOR-NAME. |
61298010 RS |
1036 | When called interactively, prompt for the name of the color to use. |
1037 | To get the frame's current background color, use `frame-parameters'." | |
63ec4f94 | 1038 | (interactive (list (facemenu-read-color "Background color: "))) |
dc6d9681 | 1039 | (modify-frame-parameters (selected-frame) |
528e1416 EZ |
1040 | (list (cons 'background-color color-name))) |
1041 | (or window-system | |
1042 | (face-set-after-frame-default (selected-frame)))) | |
64c669bc | 1043 | |
8290babd | 1044 | (defun set-foreground-color (color-name) |
40d34803 | 1045 | "Set the foreground color of the selected frame to COLOR-NAME. |
61298010 RS |
1046 | When called interactively, prompt for the name of the color to use. |
1047 | To get the frame's current foreground color, use `frame-parameters'." | |
63ec4f94 | 1048 | (interactive (list (facemenu-read-color "Foreground color: "))) |
dc6d9681 | 1049 | (modify-frame-parameters (selected-frame) |
528e1416 EZ |
1050 | (list (cons 'foreground-color color-name))) |
1051 | (or window-system | |
1052 | (face-set-after-frame-default (selected-frame)))) | |
64c669bc JB |
1053 | |
1054 | (defun set-cursor-color (color-name) | |
40d34803 | 1055 | "Set the text cursor color of the selected frame to COLOR-NAME. |
61298010 RS |
1056 | When called interactively, prompt for the name of the color to use. |
1057 | To get the frame's current cursor color, use `frame-parameters'." | |
63ec4f94 | 1058 | (interactive (list (facemenu-read-color "Cursor color: "))) |
dc6d9681 | 1059 | (modify-frame-parameters (selected-frame) |
7eadab74 | 1060 | (list (cons 'cursor-color color-name)))) |
64c669bc | 1061 | |
eaa974e1 | 1062 | (defun set-mouse-color (color-name) |
40d34803 | 1063 | "Set the color of the mouse pointer of the selected frame to COLOR-NAME. |
61298010 RS |
1064 | When called interactively, prompt for the name of the color to use. |
1065 | To get the frame's current mouse color, use `frame-parameters'." | |
63ec4f94 | 1066 | (interactive (list (facemenu-read-color "Mouse color: "))) |
dc6d9681 | 1067 | (modify-frame-parameters (selected-frame) |
ec6d4463 KH |
1068 | (list (cons 'mouse-color |
1069 | (or color-name | |
1070 | (cdr (assq 'mouse-color | |
1071 | (frame-parameters)))))))) | |
7eadab74 | 1072 | |
eaa974e1 | 1073 | (defun set-border-color (color-name) |
40d34803 | 1074 | "Set the color of the border of the selected frame to COLOR-NAME. |
61298010 RS |
1075 | When called interactively, prompt for the name of the color to use. |
1076 | To get the frame's current border color, use `frame-parameters'." | |
63ec4f94 | 1077 | (interactive (list (facemenu-read-color "Border color: "))) |
eaa974e1 JB |
1078 | (modify-frame-parameters (selected-frame) |
1079 | (list (cons 'border-color color-name)))) | |
1080 | ||
1081 | (defun auto-raise-mode (arg) | |
7eadab74 | 1082 | "Toggle whether or not the selected frame should auto-raise. |
79e6ae33 RS |
1083 | With arg, turn auto-raise mode on if and only if arg is positive. |
1084 | Note that this controls Emacs's own auto-raise feature. | |
1085 | Some window managers allow you to enable auto-raise for certain windows. | |
1086 | You can use that for Emacs windows if you wish, but if you do, | |
1087 | that is beyond the control of Emacs and this command has no effect on it." | |
7eadab74 JB |
1088 | (interactive "P") |
1089 | (if (null arg) | |
1090 | (setq arg | |
1091 | (if (cdr (assq 'auto-raise (frame-parameters (selected-frame)))) | |
1092 | -1 1))) | |
9626b928 GM |
1093 | (if (> arg 0) |
1094 | (raise-frame (selected-frame))) | |
dc6d9681 | 1095 | (modify-frame-parameters (selected-frame) |
7eadab74 JB |
1096 | (list (cons 'auto-raise (> arg 0))))) |
1097 | ||
eaa974e1 | 1098 | (defun auto-lower-mode (arg) |
7eadab74 | 1099 | "Toggle whether or not the selected frame should auto-lower. |
79e6ae33 RS |
1100 | With arg, turn auto-lower mode on if and only if arg is positive. |
1101 | Note that this controls Emacs's own auto-lower feature. | |
1102 | Some window managers allow you to enable auto-lower for certain windows. | |
1103 | You can use that for Emacs windows if you wish, but if you do, | |
1104 | that is beyond the control of Emacs and this command has no effect on it." | |
7eadab74 JB |
1105 | (interactive "P") |
1106 | (if (null arg) | |
1107 | (setq arg | |
1108 | (if (cdr (assq 'auto-lower (frame-parameters (selected-frame)))) | |
1109 | -1 1))) | |
dc6d9681 | 1110 | (modify-frame-parameters (selected-frame) |
7eadab74 | 1111 | (list (cons 'auto-lower (> arg 0))))) |
7777d03b EZ |
1112 | (defun set-frame-name (name) |
1113 | "Set the name of the selected frame to NAME. | |
1114 | When called interactively, prompt for the name of the frame. | |
1115 | The frame name is displayed on the modeline if the terminal displays only | |
1116 | one frame, otherwise the name is displayed on the frame's caption bar." | |
1117 | (interactive "sFrame name: ") | |
1118 | (modify-frame-parameters (selected-frame) | |
1119 | (list (cons 'name name)))) | |
56cfea72 KS |
1120 | |
1121 | (defun frame-current-scroll-bars (&optional frame) | |
1122 | "Return the current scroll-bar settings in frame FRAME. | |
1cecf04d | 1123 | Value is a cons (VERTICAL . HORIZ0NTAL) where VERTICAL specifies the |
56cfea72 | 1124 | current location of the vertical scroll-bars (left, right, or nil), |
1cecf04d | 1125 | and HORIZONTAL specifies the current location of the horizontal scroll |
56cfea72 KS |
1126 | bars (top, bottom, or nil)." |
1127 | (let ((vert (frame-parameter frame 'vertical-scroll-bars)) | |
1128 | (hor nil)) | |
1129 | (unless (memq vert '(left right nil)) | |
1130 | (setq vert default-frame-scroll-bars)) | |
1131 | (cons vert hor))) | |
64c669bc | 1132 | \f |
9911648b | 1133 | ;;;; Frame/display capabilities. |
6ed8eeff KL |
1134 | (defun selected-terminal () |
1135 | "Return the terminal that is now selected." | |
1136 | (frame-terminal (selected-frame))) | |
b6660415 | 1137 | |
9911648b EZ |
1138 | (defun display-mouse-p (&optional display) |
1139 | "Return non-nil if DISPLAY has a mouse available. | |
1140 | DISPLAY can be a display name, a frame, or nil (meaning the selected | |
1141 | frame's display)." | |
1142 | (let ((frame-type (framep-on-display display))) | |
1143 | (cond | |
1144 | ((eq frame-type 'pc) | |
1145 | (msdos-mouse-p)) | |
1146 | ((eq system-type 'windows-nt) | |
9fa5bb32 RS |
1147 | (with-no-warnings |
1148 | (> w32-num-mouse-buttons 0))) | |
9911648b EZ |
1149 | ((memq frame-type '(x mac)) |
1150 | t) ;; We assume X and Mac *always* have a pointing device | |
1151 | (t | |
7565ee93 DL |
1152 | (or (and (featurep 'xt-mouse) |
1153 | xterm-mouse-mode) | |
1154 | ;; t-mouse is distributed with the GPM package. It doesn't have | |
1155 | ;; a toggle. | |
1156 | (featurep 't-mouse)))))) | |
9911648b EZ |
1157 | |
1158 | (defun display-popup-menus-p (&optional display) | |
1159 | "Return non-nil if popup menus are supported on DISPLAY. | |
1160 | DISPLAY can be a display name, a frame, or nil (meaning the selected | |
1161 | frame's display). | |
1162 | Support for popup menus requires that the mouse be available." | |
1163 | (and | |
1164 | (let ((frame-type (framep-on-display display))) | |
1165 | (memq frame-type '(x w32 pc mac))) | |
1166 | (display-mouse-p display))) | |
1167 | ||
1168 | (defun display-graphic-p (&optional display) | |
1169 | "Return non-nil if DISPLAY is a graphic display. | |
1170 | Graphical displays are those which are capable of displaying several | |
1171 | frames and several different fonts at once. This is true for displays | |
1172 | that use a window system such as X, and false for text-only terminals. | |
1173 | DISPLAY can be a display name, a frame, or nil (meaning the selected | |
1174 | frame's display)." | |
1175 | (not (null (memq (framep-on-display display) '(x w32 mac))))) | |
1176 | ||
ddc456e4 EZ |
1177 | (defun display-images-p (&optional display) |
1178 | "Return non-nil if DISPLAY can display images. | |
1179 | ||
1180 | DISPLAY can be a display name, a frame, or nil (meaning the selected | |
1181 | frame's display)." | |
1182 | (and (display-graphic-p display) | |
1183 | (fboundp 'image-mask-p) | |
fcc6f5cc | 1184 | (fboundp 'image-size))) |
ddc456e4 | 1185 | |
6693b279 EZ |
1186 | (defalias 'display-multi-frame-p 'display-graphic-p) |
1187 | (defalias 'display-multi-font-p 'display-graphic-p) | |
1188 | ||
9911648b EZ |
1189 | (defun display-selections-p (&optional display) |
1190 | "Return non-nil if DISPLAY supports selections. | |
1191 | A selection is a way to transfer text or other data between programs | |
1192 | via special system buffers called `selection' or `cut buffer' or | |
1193 | `clipboard'. | |
1194 | DISPLAY can be a display name, a frame, or nil (meaning the selected | |
1195 | frame's display)." | |
1196 | (let ((frame-type (framep-on-display display))) | |
1197 | (cond | |
1198 | ((eq frame-type 'pc) | |
1199 | ;; MS-DOG frames support selections when Emacs runs inside | |
1200 | ;; the Windows' DOS Box. | |
9fa5bb32 RS |
1201 | (with-no-warnings |
1202 | (not (null dos-windows-version)))) | |
9911648b EZ |
1203 | ((memq frame-type '(x w32 mac)) |
1204 | t) ;; FIXME? | |
1205 | (t | |
1206 | nil)))) | |
1207 | ||
1208 | (defun display-screens (&optional display) | |
1209 | "Return the number of screens associated with DISPLAY." | |
1210 | (let ((frame-type (framep-on-display display))) | |
1211 | (cond | |
bb9404d6 | 1212 | ((memq frame-type '(x w32 mac)) |
9911648b | 1213 | (x-display-screens display)) |
bb9404d6 | 1214 | (t |
9911648b EZ |
1215 | 1)))) |
1216 | ||
1217 | (defun display-pixel-height (&optional display) | |
1218 | "Return the height of DISPLAY's screen in pixels. | |
1219 | For character terminals, each character counts as a single pixel." | |
1220 | (let ((frame-type (framep-on-display display))) | |
1221 | (cond | |
1222 | ((memq frame-type '(x w32 mac)) | |
1223 | (x-display-pixel-height display)) | |
1224 | (t | |
1225 | (frame-height (if (framep display) display (selected-frame))))))) | |
1226 | ||
1227 | (defun display-pixel-width (&optional display) | |
1228 | "Return the width of DISPLAY's screen in pixels. | |
1229 | For character terminals, each character counts as a single pixel." | |
1230 | (let ((frame-type (framep-on-display display))) | |
1231 | (cond | |
1232 | ((memq frame-type '(x w32 mac)) | |
1233 | (x-display-pixel-width display)) | |
1234 | (t | |
1235 | (frame-width (if (framep display) display (selected-frame))))))) | |
1236 | ||
51e39dfc KS |
1237 | (defcustom display-mm-dimensions-alist nil |
1238 | "Alist for specifying screen dimensions in millimeters. | |
1239 | The dimensions will be used for `display-mm-height' and | |
1240 | `display-mm-width' if defined for the respective display. | |
1241 | ||
1242 | Each element of the alist has the form (display . (width . height)), | |
1243 | e.g. (\":0.0\" . (287 . 215)). | |
1244 | ||
1245 | If `display' equals t, it specifies dimensions for all graphical | |
1246 | displays not explicitely specified." | |
1247 | :version "22.1" | |
1248 | :type '(alist :key-type (choice (string :tag "Display name") | |
1249 | (const :tag "Default" t)) | |
1250 | :value-type (cons :tag "Dimensions" | |
1251 | (integer :tag "Width") | |
1252 | (integer :tag "Height"))) | |
1253 | :group 'frames) | |
1254 | ||
9911648b EZ |
1255 | (defun display-mm-height (&optional display) |
1256 | "Return the height of DISPLAY's screen in millimeters. | |
51e39dfc | 1257 | System values can be overriden by `display-mm-dimensions-alist'. |
9911648b EZ |
1258 | If the information is unavailable, value is nil." |
1259 | (and (memq (framep-on-display display) '(x w32 mac)) | |
51e39dfc KS |
1260 | (or (cddr (assoc (or display (frame-parameter nil 'display)) |
1261 | display-mm-dimensions-alist)) | |
1262 | (cddr (assoc t display-mm-dimensions-alist)) | |
1263 | (x-display-mm-height display)))) | |
9911648b EZ |
1264 | |
1265 | (defun display-mm-width (&optional display) | |
1266 | "Return the width of DISPLAY's screen in millimeters. | |
51e39dfc | 1267 | System values can be overriden by `display-mm-dimensions-alist'. |
9911648b EZ |
1268 | If the information is unavailable, value is nil." |
1269 | (and (memq (framep-on-display display) '(x w32 mac)) | |
51e39dfc KS |
1270 | (or (cadr (assoc (or display (frame-parameter nil 'display)) |
1271 | display-mm-dimensions-alist)) | |
1272 | (cadr (assoc t display-mm-dimensions-alist)) | |
1273 | (x-display-mm-width display)))) | |
9911648b EZ |
1274 | |
1275 | (defun display-backing-store (&optional display) | |
1276 | "Return the backing store capability of DISPLAY's screen. | |
1277 | The value may be `always', `when-mapped', `not-useful', or nil if | |
1278 | the question is inapplicable to a certain kind of display." | |
1279 | (let ((frame-type (framep-on-display display))) | |
1280 | (cond | |
1281 | ((memq frame-type '(x w32 mac)) | |
1282 | (x-display-backing-store display)) | |
1283 | (t | |
1284 | 'not-useful)))) | |
1285 | ||
1286 | (defun display-save-under (&optional display) | |
1287 | "Return non-nil if DISPLAY's screen supports the SaveUnder feature." | |
1288 | (let ((frame-type (framep-on-display display))) | |
1289 | (cond | |
1290 | ((memq frame-type '(x w32 mac)) | |
1291 | (x-display-save-under display)) | |
1292 | (t | |
1293 | 'not-useful)))) | |
1294 | ||
1295 | (defun display-planes (&optional display) | |
1296 | "Return the number of planes supported by DISPLAY." | |
1297 | (let ((frame-type (framep-on-display display))) | |
1298 | (cond | |
1299 | ((memq frame-type '(x w32 mac)) | |
1300 | (x-display-planes display)) | |
1301 | ((eq frame-type 'pc) | |
1302 | 4) | |
1303 | (t | |
1304 | (truncate (log (length (tty-color-alist)) 2)))))) | |
1305 | ||
1306 | (defun display-color-cells (&optional display) | |
1307 | "Return the number of color cells supported by DISPLAY." | |
1308 | (let ((frame-type (framep-on-display display))) | |
1309 | (cond | |
1310 | ((memq frame-type '(x w32 mac)) | |
1311 | (x-display-color-cells display)) | |
1312 | ((eq frame-type 'pc) | |
1313 | 16) | |
1314 | (t | |
3224dac1 | 1315 | (tty-display-color-cells display))))) |
9911648b EZ |
1316 | |
1317 | (defun display-visual-class (&optional display) | |
1318 | "Returns the visual class of DISPLAY. | |
1319 | The value is one of the symbols `static-gray', `gray-scale', | |
1320 | `static-color', `pseudo-color', `true-color', or `direct-color'." | |
1321 | (let ((frame-type (framep-on-display display))) | |
1322 | (cond | |
1323 | ((memq frame-type '(x w32 mac)) | |
1324 | (x-display-visual-class display)) | |
1325 | ((and (memq frame-type '(pc t)) | |
1326 | (tty-display-color-p display)) | |
1327 | 'static-color) | |
1328 | (t | |
1329 | 'static-gray)))) | |
1330 | ||
1331 | \f | |
dc6d9681 | 1332 | ;;;; Aliases for backward compatibility with Emacs 18. |
84ed1560 JB |
1333 | (define-obsolete-function-alias 'screen-height 'frame-height) ;before 19.15 |
1334 | (define-obsolete-function-alias 'screen-width 'frame-width) ;before 19.15 | |
9e2b097b JB |
1335 | |
1336 | (defun set-screen-width (cols &optional pretend) | |
84ed1560 | 1337 | "Change the size of the screen to COLS columns. |
40d34803 DL |
1338 | Optional second arg non-nil means that redisplay should use COLS columns |
1339 | but that the idea of the actual width of the frame should not be changed. | |
84ed1560 | 1340 | This function is provided only for compatibility with Emacs 18." |
9e2b097b JB |
1341 | (set-frame-width (selected-frame) cols pretend)) |
1342 | ||
1343 | (defun set-screen-height (lines &optional pretend) | |
84ed1560 | 1344 | "Change the height of the screen to LINES lines. |
40d34803 DL |
1345 | Optional second arg non-nil means that redisplay should use LINES lines |
1346 | but that the idea of the actual height of the screen should not be changed. | |
84ed1560 | 1347 | This function is provided only for compatibility with Emacs 18." |
9e2b097b JB |
1348 | (set-frame-height (selected-frame) lines pretend)) |
1349 | ||
154a757e GM |
1350 | (defun delete-other-frames (&optional frame) |
1351 | "Delete all frames except FRAME. | |
a2125918 GM |
1352 | If FRAME uses another frame's minibuffer, the minibuffer frame is |
1353 | left untouched. FRAME nil or omitted means use the selected frame." | |
154a757e GM |
1354 | (interactive) |
1355 | (unless frame | |
1356 | (setq frame (selected-frame))) | |
a2125918 GM |
1357 | (let* ((mini-frame (window-frame (minibuffer-window frame))) |
1358 | (frames (delq mini-frame (delq frame (frame-list))))) | |
1359 | ;; Delete mon-minibuffer-only frames first, because `delete-frame' | |
1360 | ;; signals an error when trying to delete a mini-frame that's | |
1361 | ;; still in use by another frame. | |
1362 | (dolist (frame frames) | |
1363 | (unless (eq (frame-parameter frame 'minibuffer) 'only) | |
1364 | (delete-frame frame))) | |
1365 | ;; Delete minibuffer-only frames. | |
1366 | (dolist (frame frames) | |
1367 | (when (eq (frame-parameter frame 'minibuffer) 'only) | |
1368 | (delete-frame frame))))) | |
154a757e | 1369 | |
2598a293 SM |
1370 | (make-obsolete 'set-screen-width 'set-frame-width) ;before 19.15 |
1371 | (make-obsolete 'set-screen-height 'set-frame-height) ;before 19.15 | |
dc6d9681 | 1372 | |
da7829a3 | 1373 | ;; miscellaneous obsolescence declarations |
84ed1560 JB |
1374 | (define-obsolete-variable-alias 'delete-frame-hook |
1375 | 'delete-frame-functions "22.1") | |
da7829a3 | 1376 | |
dc6d9681 | 1377 | \f |
7e573c4a | 1378 | ;; Highlighting trailing whitespace. |
81b99826 GM |
1379 | |
1380 | (make-variable-buffer-local 'show-trailing-whitespace) | |
1381 | ||
1382 | (defcustom show-trailing-whitespace nil | |
e6c45c29 LT |
1383 | "*Non-nil means highlight trailing whitespace. |
1384 | This is done in the face `trailing-whitespace'." | |
81b99826 | 1385 | :type 'boolean |
b4aefb19 | 1386 | :group 'whitespace-faces) |
81b99826 GM |
1387 | |
1388 | ||
1389 | \f | |
7e573c4a | 1390 | ;; Scrolling |
79b14b94 GM |
1391 | |
1392 | (defgroup scrolling nil | |
1393 | "Scrolling windows." | |
1394 | :version "21.1" | |
1395 | :group 'frames) | |
1396 | ||
968ecc28 | 1397 | (defcustom auto-hscroll-mode t |
310e9a21 | 1398 | "*Allow or disallow automatic scrolling windows horizontally. |
9ea60c46 | 1399 | If non-nil, windows are automatically scrolled horizontally to make |
79b14b94 GM |
1400 | point visible." |
1401 | :version "21.1" | |
1402 | :type 'boolean | |
1403 | :group 'scrolling) | |
968ecc28 | 1404 | (defvaralias 'automatic-hscrolling 'auto-hscroll-mode) |
79b14b94 GM |
1405 | |
1406 | \f | |
7e573c4a | 1407 | ;; Blinking cursor |
81b99826 GM |
1408 | |
1409 | (defgroup cursor nil | |
ca693be8 | 1410 | "Displaying text cursors." |
40d34803 | 1411 | :version "21.1" |
81b99826 GM |
1412 | :group 'frames) |
1413 | ||
1414 | (defcustom blink-cursor-delay 0.5 | |
ca693be8 | 1415 | "*Seconds of idle time after which cursor starts to blink." |
81b99826 GM |
1416 | :type 'number |
1417 | :group 'cursor) | |
1418 | ||
1419 | (defcustom blink-cursor-interval 0.5 | |
1420 | "*Length of cursor blink interval in seconds." | |
81b99826 GM |
1421 | :type 'number |
1422 | :group 'cursor) | |
1423 | ||
1424 | (defvar blink-cursor-idle-timer nil | |
ca693be8 GM |
1425 | "Timer started after `blink-cursor-delay' seconds of Emacs idle time. |
1426 | The function `blink-cursor-start' is called when the timer fires.") | |
81b99826 GM |
1427 | |
1428 | (defvar blink-cursor-timer nil | |
ca693be8 | 1429 | "Timer started from `blink-cursor-start'. |
a795e09a LT |
1430 | This timer calls `blink-cursor-timer-function' every |
1431 | `blink-cursor-interval' seconds.") | |
1432 | ||
81b99826 | 1433 | (defun blink-cursor-start () |
ca693be8 GM |
1434 | "Timer function called from the timer `blink-cursor-idle-timer'. |
1435 | This starts the timer `blink-cursor-timer', which makes the cursor blink | |
1436 | if appropriate. It also arranges to cancel that timer when the next | |
1437 | command starts, by installing a pre-command hook." | |
81b99826 | 1438 | (when (null blink-cursor-timer) |
f9ac92c5 CY |
1439 | ;; Set up the timer first, so that if this signals an error, |
1440 | ;; blink-cursor-end is not added to pre-command-hook. | |
81b99826 GM |
1441 | (setq blink-cursor-timer |
1442 | (run-with-timer blink-cursor-interval blink-cursor-interval | |
f9ac92c5 CY |
1443 | 'blink-cursor-timer-function)) |
1444 | (add-hook 'pre-command-hook 'blink-cursor-end) | |
1445 | (internal-show-cursor nil nil))) | |
0a5ebe4b GM |
1446 | |
1447 | (defun blink-cursor-timer-function () | |
1448 | "Timer function of timer `blink-cursor-timer'." | |
1449 | (internal-show-cursor nil (not (internal-show-cursor-p)))) | |
81b99826 GM |
1450 | |
1451 | (defun blink-cursor-end () | |
1452 | "Stop cursor blinking. | |
ca693be8 | 1453 | This is installed as a pre-command hook by `blink-cursor-start'. |
f39784dd | 1454 | When run, it cancels the timer `blink-cursor-timer' and removes |
ca693be8 | 1455 | itself as a pre-command hook." |
81b99826 | 1456 | (remove-hook 'pre-command-hook 'blink-cursor-end) |
0a5ebe4b | 1457 | (internal-show-cursor nil t) |
8ec94c16 SM |
1458 | (when blink-cursor-timer |
1459 | (cancel-timer blink-cursor-timer) | |
1460 | (setq blink-cursor-timer nil))) | |
81b99826 | 1461 | |
8ec94c16 SM |
1462 | (define-minor-mode blink-cursor-mode |
1463 | "Toggle blinking cursor mode. | |
4837b516 GM |
1464 | With a numeric argument, turn blinking cursor mode on if ARG is positive, |
1465 | otherwise turn it off. When blinking cursor mode is enabled, the | |
1466 | cursor of the selected window blinks. | |
81b99826 | 1467 | |
8ec94c16 SM |
1468 | Note that this command is effective only when Emacs |
1469 | displays through a window system, because then Emacs does its own | |
1470 | cursor display. On a text-only terminal, this is not implemented." | |
1471 | :init-value (not (or noninteractive | |
1472 | no-blinking-cursor | |
1473 | (eq system-type 'ms-dos) | |
1474 | (not (memq window-system '(x w32 mac))))) | |
1475 | :initialize 'custom-initialize-safe-default | |
1476 | :group 'cursor | |
1477 | :global t | |
1478 | (if blink-cursor-idle-timer (cancel-timer blink-cursor-idle-timer)) | |
1479 | (setq blink-cursor-idle-timer nil) | |
1480 | (blink-cursor-end) | |
1481 | (when blink-cursor-mode | |
1482 | ;; Hide the cursor. | |
1483 | ;;(internal-show-cursor nil nil) | |
1484 | (setq blink-cursor-idle-timer | |
1485 | (run-with-idle-timer blink-cursor-delay | |
1486 | blink-cursor-delay | |
1487 | 'blink-cursor-start)))) | |
81b99826 | 1488 | |
8ec94c16 | 1489 | (define-obsolete-variable-alias 'blink-cursor 'blink-cursor-mode "22.1") |
81b99826 | 1490 | \f |
7e573c4a | 1491 | ;; Hourglass pointer |
81b99826 | 1492 | |
a6c411ff | 1493 | (defcustom display-hourglass t |
088e75cc RS |
1494 | "*Non-nil means show an hourglass pointer, when Emacs is busy. |
1495 | This feature only works when on a window system that can change | |
1496 | cursor shapes." | |
81b99826 | 1497 | :type 'boolean |
a6c411ff | 1498 | :group 'cursor) |
81b99826 | 1499 | |
a6c411ff | 1500 | (defcustom hourglass-delay 1 |
63ec4f94 | 1501 | "*Seconds to wait before displaying an hourglass pointer when Emacs is busy." |
0a86e779 | 1502 | :type 'number |
a6c411ff | 1503 | :group 'cursor) |
1d0a3ef4 | 1504 | |
5b2c5477 | 1505 | \f |
c0eb3c10 | 1506 | (defcustom cursor-in-non-selected-windows t |
84ed1560 | 1507 | "*Non-nil means show a hollow box cursor in non-selected windows. |
e053c60f | 1508 | If nil, don't show a cursor except in the selected window. |
f39784dd | 1509 | Use Custom to set this variable to get the display updated." |
63ec4f94 | 1510 | :tag "Cursor In Non-selected Windows" |
5b2c5477 GM |
1511 | :type 'boolean |
1512 | :group 'cursor | |
5b2c5477 GM |
1513 | :set #'(lambda (symbol value) |
1514 | (set-default symbol value) | |
5b2c5477 | 1515 | (force-mode-line-update t))) |
f39784dd | 1516 | |
81b99826 | 1517 | \f |
64c669bc | 1518 | ;;;; Key bindings |
64c669bc | 1519 | |
6238bfaf | 1520 | (define-key ctl-x-5-map "2" 'make-frame-command) |
154a757e | 1521 | (define-key ctl-x-5-map "1" 'delete-other-frames) |
dc6d9681 | 1522 | (define-key ctl-x-5-map "0" 'delete-frame) |
ceab6935 | 1523 | (define-key ctl-x-5-map "o" 'other-frame) |
49116ac0 | 1524 | |
dc6d9681 | 1525 | (provide 'frame) |
c88ab9ce | 1526 | |
485464c4 | 1527 | ;; arch-tag: 82979c70-b8f2-4306-b2ad-ddbd6b328b56 |
dc6d9681 | 1528 | ;;; frame.el ends here |