frame.c 39.9 KB
Newer Older
Jim Blandy's avatar
Jim Blandy committed
1
/* Generic frame functions.
Jim Blandy's avatar
Jim Blandy committed
2
   Copyright (C) 1989, 1992 Free Software Foundation.
Jim Blandy's avatar
Jim Blandy committed
3 4 5 6 7

This file is part of GNU Emacs.

GNU Emacs is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
Jim Blandy's avatar
Jim Blandy committed
8
the Free Software Foundation; either version 2, or (at your option)
Jim Blandy's avatar
Jim Blandy committed
9 10 11 12 13 14 15 16 17 18 19
any later version.

GNU Emacs is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with GNU Emacs; see the file COPYING.  If not, write to
the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */

Jim Blandy's avatar
Jim Blandy committed
20 21
#include <stdio.h>

Jim Blandy's avatar
Jim Blandy committed
22
#include "config.h"
23 24
#include "lisp.h"
#include "frame.h"
Jim Blandy's avatar
Jim Blandy committed
25

Jim Blandy's avatar
Jim Blandy committed
26
#ifdef MULTI_FRAME
Jim Blandy's avatar
Jim Blandy committed
27

Jim Blandy's avatar
Jim Blandy committed
28
#include "window.h"
Jim Blandy's avatar
Jim Blandy committed
29
#include "termhooks.h"
Jim Blandy's avatar
Jim Blandy committed
30

31 32 33 34
/* These help us bind and responding to switch-frame events.  */
#include "commands.h"
#include "keyboard.h"

Jim Blandy's avatar
Jim Blandy committed
35
Lisp_Object Vemacs_iconified;
Jim Blandy's avatar
Jim Blandy committed
36 37 38 39
Lisp_Object Vframe_list;
Lisp_Object Vterminal_frame;
Lisp_Object Vdefault_minibuffer_frame;
Lisp_Object Vdefault_frame_alist;
40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78

/* Evaluate this expression to rebuild the section of syms_of_frame
   that initializes and staticpros the symbols declared below.  Note
   that Emacs 18 has a bug that keeps C-x C-e from being able to
   evaluate this expression.

(progn
  ;; Accumulate a list of the symbols we want to initialize from the
  ;; declarations at the top of the file.
  (goto-char (point-min))
  (search-forward "/\*&&& symbols declared here &&&*\/\n")
  (let (symbol-list)
    (while (looking-at "Lisp_Object \\(Q[a-z_]+\\)")
      (setq symbol-list
	    (cons (buffer-substring (match-beginning 1) (match-end 1))
		  symbol-list))
      (forward-line 1))
    (setq symbol-list (nreverse symbol-list))
    ;; Delete the section of syms_of_... where we initialize the symbols.
    (search-forward "\n  /\*&&& init symbols here &&&*\/\n")
    (let ((start (point)))
      (while (looking-at "^  Q")
	(forward-line 2))
      (kill-region start (point)))
    ;; Write a new symbol initialization section.
    (while symbol-list
      (insert (format "  %s = intern (\"" (car symbol-list)))
      (let ((start (point)))
	(insert (substring (car symbol-list) 1))
	(subst-char-in-region start (point) ?_ ?-))
      (insert (format "\");\n  staticpro (&%s);\n" (car symbol-list)))
      (setq symbol-list (cdr symbol-list)))))
  */        

/*&&& symbols declared here &&&*/
Lisp_Object Qframep;
Lisp_Object Qlive_frame_p;
Lisp_Object Qheight;
Lisp_Object Qicon;
Jim Blandy's avatar
Jim Blandy committed
79
Lisp_Object Qminibuffer;
80 81 82 83 84 85 86
Lisp_Object Qmodeline;
Lisp_Object Qname;
Lisp_Object Qnone;
Lisp_Object Qonly;
Lisp_Object Qunsplittable;
Lisp_Object Qwidth;
Lisp_Object Qx;
Jim Blandy's avatar
Jim Blandy committed
87 88 89 90

extern Lisp_Object Vminibuffer_list;
extern Lisp_Object get_minibuffer ();

Jim Blandy's avatar
Jim Blandy committed
91 92 93 94 95
DEFUN ("framep", Fframep, Sframep, 1, 1, 0,
  "Return non-nil if OBJECT is a frame.\n\
Value is t for a termcap frame (a character-only terminal),\n\
`x' for an Emacs frame that is really an X window.\n\
Also see `live-frame-p'.")
Jim Blandy's avatar
Jim Blandy committed
96 97
  (object)
     Lisp_Object object;
Jim Blandy's avatar
Jim Blandy committed
98
{
Jim Blandy's avatar
Jim Blandy committed
99
  if (XTYPE (object) != Lisp_Frame)
Jim Blandy's avatar
Jim Blandy committed
100
    return Qnil;
Jim Blandy's avatar
Jim Blandy committed
101
  switch (XFRAME (object)->output_method)
Jim Blandy's avatar
Jim Blandy committed
102 103 104 105
    {
    case output_termcap:
      return Qt;
    case output_x_window:
106
      return Qx;
Jim Blandy's avatar
Jim Blandy committed
107 108 109 110 111
    default:
      abort ();
    }
}

Jim Blandy's avatar
Jim Blandy committed
112 113 114 115 116 117
DEFUN ("live-frame-p", Flive_frame_p, Slive_frame_p, 1, 1, 0,
  "Return non-nil if OBJECT is a frame which has not been deleted.\n\
Value is nil if OBJECT is not a live frame.  If object is a live\n\
frame, the return value indicates what sort of output device it is\n\
displayed on.  Value is t for a termcap frame (a character-only\n\
terminal), `x' for an Emacs frame being displayed in an X window.")
Jim Blandy's avatar
Jim Blandy committed
118 119 120
  (object)
     Lisp_Object object;
{
Jim Blandy's avatar
Jim Blandy committed
121 122 123
  return ((FRAMEP (object)
	   && FRAME_LIVE_P (XFRAME (object)))
	  ? Fframep (object)
Jim Blandy's avatar
Jim Blandy committed
124 125 126
	  : Qnil);
}

Jim Blandy's avatar
Jim Blandy committed
127 128
struct frame *
make_frame (mini_p)
Jim Blandy's avatar
Jim Blandy committed
129 130
     int mini_p;
{
Jim Blandy's avatar
Jim Blandy committed
131 132
  Lisp_Object frame;
  register struct frame *f;
Jim Blandy's avatar
Jim Blandy committed
133 134 135
  register Lisp_Object root_window;
  register Lisp_Object mini_window;

Jim Blandy's avatar
Jim Blandy committed
136
  frame = Fmake_vector (((sizeof (struct frame) - (sizeof (Lisp_Vector)
Jim Blandy's avatar
Jim Blandy committed
137 138
						     - sizeof (Lisp_Object)))
			  / sizeof (Lisp_Object)),
Jim Blandy's avatar
Jim Blandy committed
139
			 make_number (0));
Jim Blandy's avatar
Jim Blandy committed
140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156
  XSETTYPE (frame, Lisp_Frame);
  f = XFRAME (frame);

  f->cursor_x = 0;
  f->cursor_y = 0;
  f->current_glyphs = 0;
  f->desired_glyphs = 0;
  f->visible = 0;
  f->display.nothing = 0;
  f->iconified = 0;
  f->wants_modeline = 1;
  f->auto_raise = 0;
  f->auto_lower = 0;
  f->no_split = 0;
  f->garbaged = 0;
  f->has_minibuffer = mini_p;
  f->focus_frame = frame;
157
  f->explicit_name = 0;
Jim Blandy's avatar
Jim Blandy committed
158 159

  f->param_alist = Qnil;
Jim Blandy's avatar
Jim Blandy committed
160

161
  root_window = make_window ();
Jim Blandy's avatar
Jim Blandy committed
162 163
  if (mini_p)
    {
164
      mini_window = make_window ();
Jim Blandy's avatar
Jim Blandy committed
165 166 167
      XWINDOW (root_window)->next = mini_window;
      XWINDOW (mini_window)->prev = root_window;
      XWINDOW (mini_window)->mini_p = Qt;
Jim Blandy's avatar
Jim Blandy committed
168 169
      XWINDOW (mini_window)->frame = frame;
      f->minibuffer_window = mini_window;
Jim Blandy's avatar
Jim Blandy committed
170 171 172 173 174
    }
  else
    {
      mini_window = Qnil;
      XWINDOW (root_window)->next = Qnil;
Jim Blandy's avatar
Jim Blandy committed
175
      f->minibuffer_window = Qnil;
Jim Blandy's avatar
Jim Blandy committed
176 177
    }

Jim Blandy's avatar
Jim Blandy committed
178
  XWINDOW (root_window)->frame = frame;
Jim Blandy's avatar
Jim Blandy committed
179 180 181

  /* 10 is arbitrary,
     just so that there is "something there."
Jim Blandy's avatar
Jim Blandy committed
182
     Correct size will be set up later with change_frame_size.  */
Jim Blandy's avatar
Jim Blandy committed
183

Jim Blandy's avatar
Jim Blandy committed
184 185
  f->width = 10;
  f->height = 10;
Jim Blandy's avatar
Jim Blandy committed
186 187 188 189 190 191 192 193 194 195 196

  XFASTINT (XWINDOW (root_window)->width) = 10;
  XFASTINT (XWINDOW (root_window)->height) = (mini_p ? 9 : 10);

  if (mini_p)
    {
      XFASTINT (XWINDOW (mini_window)->width) = 10;
      XFASTINT (XWINDOW (mini_window)->top) = 9;
      XFASTINT (XWINDOW (mini_window)->height) = 1;
    }

Jim Blandy's avatar
Jim Blandy committed
197
  /* Choose a buffer for the frame's root window.  */
Jim Blandy's avatar
Jim Blandy committed
198 199 200 201 202 203 204 205
  {
    Lisp_Object buf;

    XWINDOW (root_window)->buffer = Qt;
    buf = Fcurrent_buffer ();
    /* If buf is a 'hidden' buffer (i.e. one whose name starts with
       a space), try to find another one.  */
    if (XSTRING (Fbuffer_name (buf))->data[0] == ' ')
206
      buf = Fother_buffer (buf, Qnil);
Jim Blandy's avatar
Jim Blandy committed
207 208 209
    Fset_window_buffer (root_window, buf);
  }

Jim Blandy's avatar
Jim Blandy committed
210 211 212 213
  if (mini_p)
    {
      XWINDOW (mini_window)->buffer = Qt;
      Fset_window_buffer (mini_window,
Jim Blandy's avatar
Jim Blandy committed
214
			  (NILP (Vminibuffer_list)
Jim Blandy's avatar
Jim Blandy committed
215 216 217 218
			   ? get_minibuffer (0)
			   : Fcar (Vminibuffer_list)));
    }

Jim Blandy's avatar
Jim Blandy committed
219 220
  f->root_window = root_window;
  f->selected_window = root_window;
Jim Blandy's avatar
Jim Blandy committed
221 222
  /* Make sure this window seems more recently used than
     a newly-created, never-selected window.  */
Jim Blandy's avatar
Jim Blandy committed
223
  XFASTINT (XWINDOW (f->selected_window)->use_time) = ++window_select_count;
Jim Blandy's avatar
Jim Blandy committed
224

Jim Blandy's avatar
Jim Blandy committed
225
  Vframe_list = Fcons (frame, Vframe_list);
Jim Blandy's avatar
Jim Blandy committed
226

Jim Blandy's avatar
Jim Blandy committed
227
  return f;
Jim Blandy's avatar
Jim Blandy committed
228 229
}

Jim Blandy's avatar
Jim Blandy committed
230
/* Make a frame using a separate minibuffer window on another frame.
Jim Blandy's avatar
Jim Blandy committed
231 232 233
   MINI_WINDOW is the minibuffer window to use.  nil means use the
   default (the global minibuffer).  */

Jim Blandy's avatar
Jim Blandy committed
234 235
struct frame *
make_frame_without_minibuffer (mini_window)
Jim Blandy's avatar
Jim Blandy committed
236 237
     register Lisp_Object mini_window;
{
Jim Blandy's avatar
Jim Blandy committed
238
  register struct frame *f;
Jim Blandy's avatar
Jim Blandy committed
239 240

  /* Choose the minibuffer window to use.  */
Jim Blandy's avatar
Jim Blandy committed
241
  if (NILP (mini_window))
Jim Blandy's avatar
Jim Blandy committed
242
    {
Jim Blandy's avatar
Jim Blandy committed
243 244 245 246 247
      if (XTYPE (Vdefault_minibuffer_frame) != Lisp_Frame)
	error ("default-minibuffer-frame must be set when creating minibufferless frames");
      if (! FRAME_LIVE_P (XFRAME (Vdefault_minibuffer_frame)))
	error ("default-minibuffer-frame must be a live frame");
      mini_window = XFRAME (Vdefault_minibuffer_frame)->minibuffer_window;
Jim Blandy's avatar
Jim Blandy committed
248 249 250 251 252 253
    }
  else
    {
      CHECK_WINDOW (mini_window, 0);
    }

Jim Blandy's avatar
Jim Blandy committed
254 255
  /* Make a frame containing just a root window.  */
  f = make_frame (0);
Jim Blandy's avatar
Jim Blandy committed
256 257

  /* Install the chosen minibuffer window, with proper buffer.  */
Jim Blandy's avatar
Jim Blandy committed
258
  f->minibuffer_window = mini_window;
Jim Blandy's avatar
Jim Blandy committed
259
  Fset_window_buffer (mini_window,
Jim Blandy's avatar
Jim Blandy committed
260
		      (NILP (Vminibuffer_list)
Jim Blandy's avatar
Jim Blandy committed
261 262
		       ? get_minibuffer (0)
		       : Fcar (Vminibuffer_list)));
Jim Blandy's avatar
Jim Blandy committed
263
  return f;
Jim Blandy's avatar
Jim Blandy committed
264 265
}

Jim Blandy's avatar
Jim Blandy committed
266
/* Make a frame containing only a minibuffer window.  */
Jim Blandy's avatar
Jim Blandy committed
267

Jim Blandy's avatar
Jim Blandy committed
268 269
struct frame *
make_minibuffer_frame ()
Jim Blandy's avatar
Jim Blandy committed
270
{
Jim Blandy's avatar
Jim Blandy committed
271
  /* First make a frame containing just a root window, no minibuffer.  */
Jim Blandy's avatar
Jim Blandy committed
272

Jim Blandy's avatar
Jim Blandy committed
273
  register struct frame *f = make_frame (0);
Jim Blandy's avatar
Jim Blandy committed
274
  register Lisp_Object mini_window;
Jim Blandy's avatar
Jim Blandy committed
275
  register Lisp_Object frame;
Jim Blandy's avatar
Jim Blandy committed
276

Jim Blandy's avatar
Jim Blandy committed
277
  XSET (frame, Lisp_Frame, f);
Jim Blandy's avatar
Jim Blandy committed
278

279
  f->auto_raise = 0;
Jim Blandy's avatar
Jim Blandy committed
280 281 282 283
  f->auto_lower = 0;
  f->no_split = 1;
  f->wants_modeline = 0;
  f->has_minibuffer = 1;
Jim Blandy's avatar
Jim Blandy committed
284 285 286 287 288

  /* Now label the root window as also being the minibuffer.
     Avoid infinite looping on the window chain by marking next pointer
     as nil. */

Jim Blandy's avatar
Jim Blandy committed
289
  mini_window = f->minibuffer_window = f->root_window;
Jim Blandy's avatar
Jim Blandy committed
290 291
  XWINDOW (mini_window)->mini_p = Qt;
  XWINDOW (mini_window)->next = Qnil;
292
  XWINDOW (mini_window)->prev = Qnil;
Jim Blandy's avatar
Jim Blandy committed
293
  XWINDOW (mini_window)->frame = frame;
Jim Blandy's avatar
Jim Blandy committed
294 295 296 297

  /* Put the proper buffer in that window.  */

  Fset_window_buffer (mini_window,
Jim Blandy's avatar
Jim Blandy committed
298
		      (NILP (Vminibuffer_list)
Jim Blandy's avatar
Jim Blandy committed
299 300
		       ? get_minibuffer (0)
		       : Fcar (Vminibuffer_list)));
Jim Blandy's avatar
Jim Blandy committed
301
  return f;
Jim Blandy's avatar
Jim Blandy committed
302 303
}

Jim Blandy's avatar
Jim Blandy committed
304
/* Construct a frame that refers to the terminal (stdin and stdout).  */
Jim Blandy's avatar
Jim Blandy committed
305

Jim Blandy's avatar
Jim Blandy committed
306 307
struct frame *
make_terminal_frame ()
Jim Blandy's avatar
Jim Blandy committed
308
{
Jim Blandy's avatar
Jim Blandy committed
309 310 311 312 313 314 315 316 317
  register struct frame *f;

  Vframe_list = Qnil;
  f = make_frame (1);
  f->name = build_string ("terminal");
  f->visible = 1;
  f->display.nothing = 1;   /* Nonzero means frame isn't deleted.  */
  XSET (Vterminal_frame, Lisp_Frame, f);
  return f;
Jim Blandy's avatar
Jim Blandy committed
318 319
}

320
DEFUN ("select-frame", Fselect_frame, Sselect_frame, 1, 2, "e",
321
  "Select the frame FRAME.  FRAME's selected window becomes \"the\"\n\
Jim Blandy's avatar
Jim Blandy committed
322
selected window.  If the optional parameter NO-ENTER is non-nil, don't\n\
323 324 325 326 327 328
focus on that frame.\n\
\n\
This function is interactive, and may be bound to the ``switch-frame''\n\
event; when invoked this way, it switches to the frame named in the\n\
event.  When called from lisp, FRAME may be a ``switch-frame'' event;\n\
if it is, select the frame named in the event.")
Jim Blandy's avatar
Jim Blandy committed
329 330
  (frame, no_enter)
     Lisp_Object frame, no_enter;
Jim Blandy's avatar
Jim Blandy committed
331
{
332 333 334 335 336 337 338
  /* If FRAME is a switch-frame event, extract the frame we should
     switch to.  */
  if (CONSP (frame)
      && EQ (XCONS (frame)->car, Qswitch_frame)
      && CONSP (XCONS (frame)->cdr))
    frame = XCONS (XCONS (frame)->cdr)->car;

Jim Blandy's avatar
Jim Blandy committed
339
  CHECK_LIVE_FRAME (frame, 0);
Jim Blandy's avatar
Jim Blandy committed
340

Jim Blandy's avatar
Jim Blandy committed
341 342
  if (selected_frame == XFRAME (frame))
    return frame;
Jim Blandy's avatar
Jim Blandy committed
343

Jim Blandy's avatar
Jim Blandy committed
344 345 346
  selected_frame = XFRAME (frame);
  if (! FRAME_MINIBUF_ONLY_P (selected_frame))
    last_nonminibuf_frame = selected_frame;
Jim Blandy's avatar
Jim Blandy committed
347

Jim Blandy's avatar
Jim Blandy committed
348
  Fselect_window (XFRAME (frame)->selected_window);
Jim Blandy's avatar
Jim Blandy committed
349 350

#ifdef HAVE_X_WINDOWS
Jim Blandy's avatar
Jim Blandy committed
351
#ifdef MULTI_FRAME
352
  if (FRAME_X_P (XFRAME (frame))
Jim Blandy's avatar
Jim Blandy committed
353
      && NILP (no_enter))
Jim Blandy's avatar
Jim Blandy committed
354
    {
Jim Blandy's avatar
Jim Blandy committed
355
      Ffocus_frame (frame);
Jim Blandy's avatar
Jim Blandy committed
356 357 358
    }
#endif
#endif
Jim Blandy's avatar
Jim Blandy committed
359
  choose_minibuf_frame ();
Jim Blandy's avatar
Jim Blandy committed
360

Jim Blandy's avatar
Jim Blandy committed
361
  return frame;
Jim Blandy's avatar
Jim Blandy committed
362 363
}

Jim Blandy's avatar
Jim Blandy committed
364 365
DEFUN ("selected-frame", Fselected_frame, Sselected_frame, 0, 0, 0,
  "Return the frame that is now selected.")
Jim Blandy's avatar
Jim Blandy committed
366 367 368
  ()
{
  Lisp_Object tem;
Jim Blandy's avatar
Jim Blandy committed
369
  XSET (tem, Lisp_Frame, selected_frame);
Jim Blandy's avatar
Jim Blandy committed
370 371 372
  return tem;
}

Jim Blandy's avatar
Jim Blandy committed
373 374
DEFUN ("window-frame", Fwindow_frame, Swindow_frame, 1, 1, 0,
  "Return the frame object that window WINDOW is on.")
Jim Blandy's avatar
Jim Blandy committed
375 376 377 378
  (window)
     Lisp_Object window;
{
  CHECK_WINDOW (window, 0);
Jim Blandy's avatar
Jim Blandy committed
379
  return XWINDOW (window)->frame;
Jim Blandy's avatar
Jim Blandy committed
380 381
}

Jim Blandy's avatar
Jim Blandy committed
382
DEFUN ("frame-root-window", Fframe_root_window, Sframe_root_window, 0, 1, 0,
383 384
       "Returns the root-window of FRAME.\n\
If omitted, FRAME defaults to the currently selected frame.")
Jim Blandy's avatar
Jim Blandy committed
385 386
  (frame)
     Lisp_Object frame;
Jim Blandy's avatar
Jim Blandy committed
387
{
Jim Blandy's avatar
Jim Blandy committed
388 389
  if (NILP (frame))
    XSET (frame, Lisp_Frame, selected_frame);
Jim Blandy's avatar
Jim Blandy committed
390
  else
Jim Blandy's avatar
Jim Blandy committed
391
    CHECK_LIVE_FRAME (frame, 0);
Jim Blandy's avatar
Jim Blandy committed
392

Jim Blandy's avatar
Jim Blandy committed
393
  return XFRAME (frame)->root_window;
Jim Blandy's avatar
Jim Blandy committed
394 395
}

Jim Blandy's avatar
Jim Blandy committed
396 397
DEFUN ("frame-selected-window", Fframe_selected_window,
       Sframe_selected_window, 0, 1, 0,
398 399
  "Return the selected window of frame object FRAME.\n\
If omitted, FRAME defaults to the currently selected frame.")
Jim Blandy's avatar
Jim Blandy committed
400 401
  (frame)
     Lisp_Object frame;
Jim Blandy's avatar
Jim Blandy committed
402
{
Jim Blandy's avatar
Jim Blandy committed
403 404
  if (NILP (frame))
    XSET (frame, Lisp_Frame, selected_frame);
Jim Blandy's avatar
Jim Blandy committed
405
  else
Jim Blandy's avatar
Jim Blandy committed
406
    CHECK_LIVE_FRAME (frame, 0);
Jim Blandy's avatar
Jim Blandy committed
407

Jim Blandy's avatar
Jim Blandy committed
408
  return XFRAME (frame)->selected_window;
Jim Blandy's avatar
Jim Blandy committed
409 410
}

Jim Blandy's avatar
Jim Blandy committed
411
DEFUN ("frame-list", Fframe_list, Sframe_list,
Jim Blandy's avatar
Jim Blandy committed
412
       0, 0, 0,
Jim Blandy's avatar
Jim Blandy committed
413
       "Return a list of all frames.")
Jim Blandy's avatar
Jim Blandy committed
414 415
  ()
{
Jim Blandy's avatar
Jim Blandy committed
416
  return Fcopy_sequence (Vframe_list);
Jim Blandy's avatar
Jim Blandy committed
417 418
}

Jim Blandy's avatar
Jim Blandy committed
419
#ifdef MULTI_FRAME
Jim Blandy's avatar
Jim Blandy committed
420

Jim Blandy's avatar
Jim Blandy committed
421 422 423
/* Return the next frame in the frame list after FRAME.
   If MINIBUF is nil, exclude minibuffer-only frames.
   If MINIBUF is a window, include only frames using that window for
424 425
   their minibuffer.
   If MINIBUF is non-nil, and not a window, include all frames.  */
Jim Blandy's avatar
Jim Blandy committed
426
Lisp_Object
Jim Blandy's avatar
Jim Blandy committed
427 428
next_frame (frame, minibuf)
     Lisp_Object frame;
Jim Blandy's avatar
Jim Blandy committed
429
     Lisp_Object minibuf;
Jim Blandy's avatar
Jim Blandy committed
430 431 432 433
{
  Lisp_Object tail;
  int passed = 0;

Jim Blandy's avatar
Jim Blandy committed
434 435
  /* There must always be at least one frame in Vframe_list.  */
  if (! CONSP (Vframe_list))
Jim Blandy's avatar
Jim Blandy committed
436 437
    abort ();

Jim Blandy's avatar
Jim Blandy committed
438
  while (1)
Jim Blandy's avatar
Jim Blandy committed
439
    for (tail = Vframe_list; CONSP (tail); tail = XCONS (tail)->cdr)
Jim Blandy's avatar
Jim Blandy committed
440
      {
441 442
	Lisp_Object f = XCONS (tail)->car;

Jim Blandy's avatar
Jim Blandy committed
443
	if (passed)
Jim Blandy's avatar
Jim Blandy committed
444
	  {
445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463
	    /* Decide whether this frame is eligible to be returned.  */

	    /* If we've looped all the way around without finding any
	       eligible frames, return the original frame.  */
	    if (EQ (f, frame))
	      return f;

	    /* Let minibuf decide if this frame is acceptable.  */
	    if (NILP (minibuf))
	      {
		if (! FRAME_MINIBUF_ONLY_P (XFRAME (f)))
		  return f;
	      }
	    else if (XTYPE (minibuf) == Lisp_Window)
	      {
		if (EQ (FRAME_MINIBUF_WINDOW (XFRAME (f)), minibuf))
		  return f;
	      }
	    else
Jim Blandy's avatar
Jim Blandy committed
464
	      return f;
Jim Blandy's avatar
Jim Blandy committed
465
	  }
Jim Blandy's avatar
Jim Blandy committed
466

467
	if (EQ (frame, f))
Jim Blandy's avatar
Jim Blandy committed
468 469 470 471
	  passed++;
      }
}

472 473 474
#if 0
/* Nobody seems to be using this code right now.  */

Jim Blandy's avatar
Jim Blandy committed
475 476 477
/* Return the previous frame in the frame list before FRAME.
   If MINIBUF is nil, exclude minibuffer-only frames.
   If MINIBUF is a window, include only frames using that window for
478 479
   their minibuffer.
   If MINIBUF is non-nil and not a window, include all frames.  */
Jim Blandy's avatar
Jim Blandy committed
480
Lisp_Object
Jim Blandy's avatar
Jim Blandy committed
481 482
prev_frame (frame, minibuf)
     Lisp_Object frame;
Jim Blandy's avatar
Jim Blandy committed
483
     Lisp_Object minibuf;
Jim Blandy's avatar
Jim Blandy committed
484 485 486 487
{
  Lisp_Object tail;
  Lisp_Object prev;

Jim Blandy's avatar
Jim Blandy committed
488 489
  /* There must always be at least one frame in Vframe_list.  */
  if (! CONSP (Vframe_list))
Jim Blandy's avatar
Jim Blandy committed
490 491
    abort ();

Jim Blandy's avatar
Jim Blandy committed
492
  prev = Qnil;
493
  for (tail = Vframe_list; CONSP (tail); tail = XCONS (tail)->cdr)
Jim Blandy's avatar
Jim Blandy committed
494
    {
495
      Lisp_Object f = XCONS (tail)->car;
Jim Blandy's avatar
Jim Blandy committed
496

497 498
      if (XTYPE (f) != Lisp_Frame)
	abort ();
Jim Blandy's avatar
Jim Blandy committed
499

500 501
      if (EQ (frame, f) && !NILP (prev))
	return prev;
Jim Blandy's avatar
Jim Blandy committed
502

503 504 505 506 507 508
      /* Decide whether this frame is eligible to be returned,
	 according to minibuf.  */
      if (NILP (minibuf))
	{
	  if (! FRAME_MINIBUF_ONLY_P (XFRAME (f)))
	    prev = f;
Jim Blandy's avatar
Jim Blandy committed
509
	}
510 511 512 513 514 515 516
      else if (XTYPE (minibuf) == Lisp_Window)
	{
	  if (EQ (FRAME_MINIBUF_WINDOW (XFRAME (f)), minibuf))
	    prev = f;
	}
      else
	prev = f;
Jim Blandy's avatar
Jim Blandy committed
517
    }
518 519 520 521 522 523 524 525 526 527 528

  /* We've scanned the entire list.  */
  if (NILP (prev))
    /* We went through the whole frame list without finding a single
       acceptable frame.  Return the original frame.  */
    return frame;
  else
    /* There were no acceptable frames in the list before FRAME; otherwise,
       we would have returned directly from the loop.  Since PREV is the last
       acceptable frame in the list, return it.  */
    return prev;
Jim Blandy's avatar
Jim Blandy committed
529
}
530
#endif
Jim Blandy's avatar
Jim Blandy committed
531

Jim Blandy's avatar
Jim Blandy committed
532 533
DEFUN ("next-frame", Fnext_frame, Snext_frame, 0, 2, 0,
  "Return the next frame in the frame list after FRAME.\n\
534
By default, skip minibuffer-only frames.
535
If omitted, FRAME defaults to the selected frame.\n\
536 537
If optional argument MINIFRAME is non-nil, include minibuffer-only frames.\n\
If MINIFRAME is a window, include only frames using that window for their\n\
538
minibuffer.\n\
539
If MINIFRAME is non-nil and not a window, include all frames.")
Jim Blandy's avatar
Jim Blandy committed
540
  (frame, miniframe)
541
     Lisp_Object frame, miniframe;
Jim Blandy's avatar
Jim Blandy committed
542 543 544
{
  Lisp_Object tail;

Jim Blandy's avatar
Jim Blandy committed
545 546
  if (NILP (frame))
    XSET (frame, Lisp_Frame, selected_frame);
Jim Blandy's avatar
Jim Blandy committed
547
  else
Jim Blandy's avatar
Jim Blandy committed
548
    CHECK_LIVE_FRAME (frame, 0);
Jim Blandy's avatar
Jim Blandy committed
549

Jim Blandy's avatar
Jim Blandy committed
550
  return next_frame (frame, miniframe);
Jim Blandy's avatar
Jim Blandy committed
551
}
Jim Blandy's avatar
Jim Blandy committed
552
#endif /* MULTI_FRAME */
Jim Blandy's avatar
Jim Blandy committed
553

Jim Blandy's avatar
Jim Blandy committed
554 555 556 557 558 559
DEFUN ("delete-frame", Fdelete_frame, Sdelete_frame, 0, 1, "",
  "Delete FRAME, permanently eliminating it from use.\n\
If omitted, FRAME defaults to the selected frame.\n\
A frame may not be deleted if its minibuffer is used by other frames.")
  (frame)
     Lisp_Object frame;
Jim Blandy's avatar
Jim Blandy committed
560
{
Jim Blandy's avatar
Jim Blandy committed
561
  struct frame *f;
Jim Blandy's avatar
Jim Blandy committed
562 563
  union display displ;

Jim Blandy's avatar
Jim Blandy committed
564
  if (EQ (frame, Qnil))
Jim Blandy's avatar
Jim Blandy committed
565
    {
Jim Blandy's avatar
Jim Blandy committed
566 567
      f = selected_frame;
      XSET (frame, Lisp_Frame, f);
Jim Blandy's avatar
Jim Blandy committed
568 569 570
    }
  else
    {
Jim Blandy's avatar
Jim Blandy committed
571 572
      CHECK_FRAME (frame, 0);
      f = XFRAME (frame);
Jim Blandy's avatar
Jim Blandy committed
573 574
    }

Jim Blandy's avatar
Jim Blandy committed
575
  if (! FRAME_LIVE_P (f))
Jim Blandy's avatar
Jim Blandy committed
576 577
    return;

Jim Blandy's avatar
Jim Blandy committed
578 579 580
  /* Are there any other frames besides this one?  */
  if (f == selected_frame && EQ (next_frame (frame, Qt), frame))
    error ("Attempt to delete the only frame");
Jim Blandy's avatar
Jim Blandy committed
581

Jim Blandy's avatar
Jim Blandy committed
582 583
  /* Does this frame have a minibuffer, and is it the surrogate
     minibuffer for any other frame?  */
584
  if (FRAME_HAS_MINIBUF_P (XFRAME (frame)))
Jim Blandy's avatar
Jim Blandy committed
585
    {
Jim Blandy's avatar
Jim Blandy committed
586
      Lisp_Object frames;
Jim Blandy's avatar
Jim Blandy committed
587

Jim Blandy's avatar
Jim Blandy committed
588 589 590
      for (frames = Vframe_list;
	   CONSP (frames);
	   frames = XCONS (frames)->cdr)
Jim Blandy's avatar
Jim Blandy committed
591
	{
Jim Blandy's avatar
Jim Blandy committed
592
	  Lisp_Object this = XCONS (frames)->car;
Jim Blandy's avatar
Jim Blandy committed
593

Jim Blandy's avatar
Jim Blandy committed
594 595 596
	  if (! EQ (this, frame)
	      && EQ (frame,
		     (WINDOW_FRAME
Jim Blandy's avatar
Jim Blandy committed
597
		      (XWINDOW
Jim Blandy's avatar
Jim Blandy committed
598 599 600
		       (FRAME_MINIBUF_WINDOW
			(XFRAME (this)))))))
	    error ("Attempt to delete a surrogate minibuffer frame");
Jim Blandy's avatar
Jim Blandy committed
601
	}
Jim Blandy's avatar
Jim Blandy committed
602 603
    }

Jim Blandy's avatar
Jim Blandy committed
604 605
  /* Don't let the frame remain selected.  */
  if (f == selected_frame)
606
    Fselect_frame (next_frame (frame, Qt), Qnil);
Jim Blandy's avatar
Jim Blandy committed
607

Jim Blandy's avatar
Jim Blandy committed
608 609
  /* Don't allow minibuf_window to remain on a deleted frame.  */
  if (EQ (f->minibuffer_window, minibuf_window))
Jim Blandy's avatar
Jim Blandy committed
610
    {
Jim Blandy's avatar
Jim Blandy committed
611
      Fset_window_buffer (selected_frame->minibuffer_window,
Jim Blandy's avatar
Jim Blandy committed
612
			  XWINDOW (minibuf_window)->buffer);
Jim Blandy's avatar
Jim Blandy committed
613
      minibuf_window = selected_frame->minibuffer_window;
Jim Blandy's avatar
Jim Blandy committed
614 615
    }

Jim Blandy's avatar
Jim Blandy committed
616 617 618 619
  Vframe_list = Fdelq (frame, Vframe_list);
  f->visible = 0;
  displ = f->display;
  f->display.nothing = 0;
Jim Blandy's avatar
Jim Blandy committed
620

Jim Blandy's avatar
Jim Blandy committed
621
#ifdef HAVE_X_WINDOWS
622
  if (FRAME_X_P (f))
Jim Blandy's avatar
Jim Blandy committed
623
    x_destroy_window (f, displ);
Jim Blandy's avatar
Jim Blandy committed
624 625
#endif

Jim Blandy's avatar
Jim Blandy committed
626
  /* If we've deleted the last_nonminibuf_frame, then try to find
Jim Blandy's avatar
Jim Blandy committed
627
     another one.  */
Jim Blandy's avatar
Jim Blandy committed
628
  if (f == last_nonminibuf_frame)
Jim Blandy's avatar
Jim Blandy committed
629
    {
Jim Blandy's avatar
Jim Blandy committed
630
      Lisp_Object frames;
Jim Blandy's avatar
Jim Blandy committed
631

Jim Blandy's avatar
Jim Blandy committed
632
      last_nonminibuf_frame = 0;
Jim Blandy's avatar
Jim Blandy committed
633

Jim Blandy's avatar
Jim Blandy committed
634 635 636
      for (frames = Vframe_list;
	   CONSP (frames);
	   frames = XCONS (frames)->cdr)
Jim Blandy's avatar
Jim Blandy committed
637
	{
Jim Blandy's avatar
Jim Blandy committed
638 639
	  f = XFRAME (XCONS (frames)->car);
	  if (!FRAME_MINIBUF_ONLY_P (f))
Jim Blandy's avatar
Jim Blandy committed
640
	    {
Jim Blandy's avatar
Jim Blandy committed
641
	      last_nonminibuf_frame = f;
Jim Blandy's avatar
Jim Blandy committed
642 643 644 645
	      break;
	    }
	}
    }
Jim Blandy's avatar
Jim Blandy committed
646

Jim Blandy's avatar
Jim Blandy committed
647 648
  /* If we've deleted Vdefault_minibuffer_frame, try to find another
     one.  Prefer minibuffer-only frames, but also notice frames
Jim Blandy's avatar
Jim Blandy committed
649
     with other windows.  */
Jim Blandy's avatar
Jim Blandy committed
650
  if (EQ (frame, Vdefault_minibuffer_frame))
Jim Blandy's avatar
Jim Blandy committed
651
    {
Jim Blandy's avatar
Jim Blandy committed
652
      Lisp_Object frames;
Jim Blandy's avatar
Jim Blandy committed
653

Jim Blandy's avatar
Jim Blandy committed
654 655
      /* The last frame we saw with a minibuffer, minibuffer-only or not.  */
      Lisp_Object frame_with_minibuf = Qnil;
Jim Blandy's avatar
Jim Blandy committed
656

Jim Blandy's avatar
Jim Blandy committed
657 658 659
      for (frames = Vframe_list;
	   CONSP (frames);
	   frames = XCONS (frames)->cdr)
Jim Blandy's avatar
Jim Blandy committed
660
	{
Jim Blandy's avatar
Jim Blandy committed
661
	  Lisp_Object this = XCONS (frames)->car;
Jim Blandy's avatar
Jim Blandy committed
662

Jim Blandy's avatar
Jim Blandy committed
663
	  if (XTYPE (this) != Lisp_Frame)
Jim Blandy's avatar
Jim Blandy committed
664
	    abort ();
Jim Blandy's avatar
Jim Blandy committed
665
	  f = XFRAME (this);
Jim Blandy's avatar
Jim Blandy committed
666

667
	  if (FRAME_HAS_MINIBUF_P (f))
Jim Blandy's avatar
Jim Blandy committed
668
	    {
Jim Blandy's avatar
Jim Blandy committed
669 670
	      frame_with_minibuf = this;
	      if (FRAME_MINIBUF_ONLY_P (f))
Jim Blandy's avatar
Jim Blandy committed
671 672 673 674
		break;
	    }
	}

Jim Blandy's avatar
Jim Blandy committed
675 676
      /* We know that there must be some frame with a minibuffer out
	 there.  If this were not true, all of the frames present
Jim Blandy's avatar
Jim Blandy committed
677
	 would have to be minibufferless, which implies that at some
Jim Blandy's avatar
Jim Blandy committed
678
	 point their minibuffer frames must have been deleted, but
Jim Blandy's avatar
Jim Blandy committed
679
	 that is prohibited at the top; you can't delete surrogate
Jim Blandy's avatar
Jim Blandy committed
680 681
	 minibuffer frames.  */
      if (NILP (frame_with_minibuf))
Jim Blandy's avatar
Jim Blandy committed
682 683
	abort ();

Jim Blandy's avatar
Jim Blandy committed
684
      Vdefault_minibuffer_frame = frame_with_minibuf;
Jim Blandy's avatar
Jim Blandy committed
685 686
    }

Jim Blandy's avatar
Jim Blandy committed
687 688 689 690 691
  return Qnil;
}

/* Return mouse position in character cell units.  */

Jim Blandy's avatar
Jim Blandy committed
692
DEFUN ("mouse-position", Fmouse_position, Smouse_position, 0, 0, 0,
Jim Blandy's avatar
Jim Blandy committed
693
  "Return a list (FRAME X . Y) giving the current mouse frame and position.\n\
Jim Blandy's avatar
Jim Blandy committed
694
If Emacs is running on a mouseless terminal or hasn't been programmed\n\
Jim Blandy's avatar
Jim Blandy committed
695
to read the mouse position, it returns the selected frame for FRAME\n\
Jim Blandy's avatar
Jim Blandy committed
696 697
and nil for X and Y.")
  ()
Jim Blandy's avatar
Jim Blandy committed
698
{
Jim Blandy's avatar
Jim Blandy committed
699
  Lisp_Object x, y, dummy;
Jim Blandy's avatar
Jim Blandy committed
700
  FRAME_PTR f;
Jim Blandy's avatar
Jim Blandy committed
701

Jim Blandy's avatar
Jim Blandy committed
702
  if (mouse_position_hook)
Jim Blandy's avatar
Jim Blandy committed
703
    (*mouse_position_hook) (&f, &x, &y, &dummy);
Jim Blandy's avatar
Jim Blandy committed
704 705
  else
    {
Jim Blandy's avatar
Jim Blandy committed
706
      f = selected_frame;
Jim Blandy's avatar
Jim Blandy committed
707 708
      x = y = Qnil;
    }
Jim Blandy's avatar
Jim Blandy committed
709

Jim Blandy's avatar
Jim Blandy committed
710
  XSET (dummy, Lisp_Frame, f);
Jim Blandy's avatar
Jim Blandy committed
711
  return Fcons (dummy, Fcons (make_number (x), make_number (y)));
Jim Blandy's avatar
Jim Blandy committed
712 713 714
}

DEFUN ("set-mouse-position", Fset_mouse_position, Sset_mouse_position, 3, 3, 0,
Jim Blandy's avatar
Jim Blandy committed
715 716 717 718
  "Move the mouse pointer to the center of cell (X,Y) in FRAME.\n\
WARNING:  If you use this under X, you should do `unfocus-frame' afterwards.")
  (frame, x, y)
     Lisp_Object frame, x, y;
Jim Blandy's avatar
Jim Blandy committed
719
{
Jim Blandy's avatar
Jim Blandy committed
720
  CHECK_LIVE_FRAME (frame, 0);
Jim Blandy's avatar
Jim Blandy committed
721 722 723 724
  CHECK_NUMBER (x, 2);
  CHECK_NUMBER (y, 1);

#ifdef HAVE_X_WINDOWS
725
  if (FRAME_X_P (XFRAME (frame)))
Jim Blandy's avatar
Jim Blandy committed
726
    /* Warping the mouse will cause  enternotify and focus events. */
Jim Blandy's avatar
Jim Blandy committed
727
    x_set_mouse_position (XFRAME (frame), x, y);
Jim Blandy's avatar
Jim Blandy committed
728 729 730 731 732 733 734
#endif

  return Qnil;
}

#if 0
/* ??? Can this be replaced with a Lisp function?
Jim Blandy's avatar
Jim Blandy committed
735 736
   It is used in minibuf.c.  Can we get rid of that?
   Yes.  All uses in minibuf.c are gone, and parallels to these
Jim Blandy's avatar
Jim Blandy committed
737
   functions have been defined in frame.el.  */
Jim Blandy's avatar
Jim Blandy committed
738

Jim Blandy's avatar
Jim Blandy committed
739
DEFUN ("frame-configuration", Fframe_configuration, Sframe_configuration,
Jim Blandy's avatar
Jim Blandy committed
740
       0, 0, 0,
Jim Blandy's avatar
Jim Blandy committed
741 742 743 744
  "Return object describing current frame configuration.\n\
The frame configuration is the current mouse position and selected frame.\n\
This object can be given to `restore-frame-configuration'\n\
to restore this frame configuration.")
Jim Blandy's avatar
Jim Blandy committed
745 746
  ()
{
Jim Blandy's avatar
Jim Blandy committed
747
  Lisp_Object c, time;
Jim Blandy's avatar
Jim Blandy committed
748
  
Jim Blandy's avatar
Jim Blandy committed
749
  c = Fmake_vector (make_number(4), Qnil);
Jim Blandy's avatar
Jim Blandy committed
750
  XVECTOR (c)->contents[0] = Fselected_frame();
Jim Blandy's avatar
Jim Blandy committed
751 752 753 754 755
  if (mouse_position_hook)
    (*mouse_position_hook) (&XVECTOR (c)->contents[1]
			    &XVECTOR (c)->contents[2],
			    &XVECTOR (c)->contents[3],
			    &time);
Jim Blandy's avatar
Jim Blandy committed
756 757 758
  return c;
}

Jim Blandy's avatar
Jim Blandy committed
759 760
DEFUN ("restore-frame-configuration", Frestore_frame_configuration,
       Srestore_frame_configuration,
Jim Blandy's avatar
Jim Blandy committed
761
       1, 1, 0,
Jim Blandy's avatar
Jim Blandy committed
762
  "Restores frame configuration CONFIGURATION.")
Jim Blandy's avatar
Jim Blandy committed
763 764 765
  (config)
  Lisp_Object config;
{
Jim Blandy's avatar
Jim Blandy committed
766
  Lisp_Object x_pos, y_pos, frame;
Jim Blandy's avatar
Jim Blandy committed
767 768 769 770

  CHECK_VECTOR (config, 0);
  if (XVECTOR (config)->size != 3)
    {
Jim Blandy's avatar
Jim Blandy committed
771
      error ("Wrong size vector passed to restore-frame-configuration");
Jim Blandy's avatar
Jim Blandy committed
772
    }
Jim Blandy's avatar
Jim Blandy committed
773 774
  frame = XVECTOR (config)->contents[0];
  CHECK_LIVE_FRAME (frame, 0);
Jim Blandy's avatar
Jim Blandy committed
775

Jim Blandy's avatar
Jim Blandy committed
776
  Fselect_frame (frame, Qnil);
Jim Blandy's avatar
Jim Blandy committed
777 778

#if 0
Jim Blandy's avatar
Jim Blandy committed
779
  /* This seems to interfere with the frame selection mechanism. jla */
Jim Blandy's avatar
Jim Blandy committed
780 781
  x_pos = XVECTOR (config)->contents[2];
  y_pos = XVECTOR (config)->contents[3];
Jim Blandy's avatar
Jim Blandy committed
782
  set_mouse_position (frame, XINT (x_pos), XINT (y_pos));
Jim Blandy's avatar
Jim Blandy committed
783 784
#endif

Jim Blandy's avatar
Jim Blandy committed
785
  return frame;
Jim Blandy's avatar
Jim Blandy committed
786 787 788
}    
#endif

Jim Blandy's avatar
Jim Blandy committed
789
DEFUN ("make-frame-visible", Fmake_frame_visible, Smake_frame_visible,
Jim Blandy's avatar
Jim Blandy committed
790
       0, 1, 0,
Jim Blandy's avatar
Jim Blandy committed
791
  "Make the frame FRAME visible (assuming it is an X-window).\n\
792 793
Also raises the frame so that nothing obscures it.\n\
If omitted, FRAME defaults to the currently selected frame.")
Jim Blandy's avatar
Jim Blandy committed
794 795
  (frame)
     Lisp_Object frame;
Jim Blandy's avatar
Jim Blandy committed
796
{
Jim Blandy's avatar
Jim Blandy committed
797
  if (NILP (frame))
Jim Blandy's avatar
Jim Blandy committed
798
    XSET (frame, Lisp_Frame, selected_frame);
Jim Blandy's avatar
Jim Blandy committed
799

Jim Blandy's avatar
Jim Blandy committed
800
  CHECK_LIVE_FRAME (frame, 0);
Jim Blandy's avatar
Jim Blandy committed
801

802 803
#ifdef HAVE_X_WINDOWS
  if (FRAME_X_P (XFRAME (frame)))
Jim Blandy's avatar
Jim Blandy committed
804
    x_make_frame_visible (XFRAME (frame));
805
#endif
Jim Blandy's avatar
Jim Blandy committed
806

Jim Blandy's avatar
Jim Blandy committed
807
  return frame;
Jim Blandy's avatar
Jim Blandy committed
808 809
}

Jim Blandy's avatar
Jim Blandy committed
810
DEFUN ("make-frame-invisible", Fmake_frame_invisible, Smake_frame_invisible,
Jim Blandy's avatar
Jim Blandy committed
811
       0, 1, "",
812 813
  "Make the frame FRAME invisible (assuming it is an X-window).\n\
If omitted, FRAME defaults to the currently selected frame.")
Jim Blandy's avatar
Jim Blandy committed
814 815
  (frame)
     Lisp_Object frame;
Jim Blandy's avatar
Jim Blandy committed
816
{
Jim Blandy's avatar
Jim Blandy committed
817
  if (NILP (frame))
Jim Blandy's avatar
Jim Blandy committed
818
    XSET (frame, Lisp_Frame, selected_frame);
Jim Blandy's avatar
Jim Blandy committed
819

Jim Blandy's avatar
Jim Blandy committed
820
  CHECK_LIVE_FRAME (frame, 0);
Jim Blandy's avatar
Jim Blandy committed
821

822 823
#ifdef HAVE_X_WINDOWS
  if (FRAME_X_P (XFRAME (frame)))
Jim Blandy's avatar
Jim Blandy committed
824
    x_make_frame_invisible (XFRAME (frame));
825
#endif
Jim Blandy's avatar
Jim Blandy committed
826 827 828 829

  return Qnil;
}

Jim Blandy's avatar
Jim Blandy committed
830
DEFUN ("iconify-frame", Ficonify_frame, Siconify_frame,
Jim Blandy's avatar
Jim Blandy committed
831
       0, 1, "",
832 833
  "Make the frame FRAME into an icon.\n\
If omitted, FRAME defaults to the currently selected frame.")
Jim Blandy's avatar
Jim Blandy committed
834 835
  (frame)
     Lisp_Object frame;
Jim Blandy's avatar
Jim Blandy committed
836
{
Jim Blandy's avatar
Jim Blandy committed
837
  if (NILP (frame))
Jim Blandy's avatar
Jim Blandy committed
838
    XSET (frame, Lisp_Frame, selected_frame);
Jim Blandy's avatar
Jim Blandy committed
839
  
Jim Blandy's avatar
Jim Blandy committed
840
  CHECK_LIVE_FRAME (frame, 0);
Jim Blandy's avatar
Jim Blandy committed
841

842 843
#ifdef HAVE_X_WINDOWS
  if (FRAME_X_P (XFRAME (frame)))
Jim Blandy's avatar
Jim Blandy committed
844
      x_iconify_frame (XFRAME (frame));
845
#endif
Jim Blandy's avatar
Jim Blandy committed
846 847 848 849

  return Qnil;
}

Jim Blandy's avatar
Jim Blandy committed
850
DEFUN ("frame-visible-p", Fframe_visible_p, Sframe_visible_p,
Jim Blandy's avatar
Jim Blandy committed
851
       1, 1, 0,
Jim Blandy's avatar
Jim Blandy committed
852 853
       "Return t if FRAME is now \"visible\" (actually in use for display).\n\
A frame that is not \"visible\" is not updated and, if it works through\n\
Jim Blandy's avatar
Jim Blandy committed
854
a window system, it may not show at all.\n\
855
Return the symbol `icon' if frame is visible only as an icon.")
Jim Blandy's avatar
Jim Blandy committed
856 857
  (frame)
     Lisp_Object frame;
Jim Blandy's avatar
Jim Blandy committed
858
{
Jim Blandy's avatar
Jim Blandy committed
859
  CHECK_LIVE_FRAME (frame, 0);
Jim Blandy's avatar
Jim Blandy committed
860

Jim Blandy's avatar
Jim Blandy committed
861
  if (XFRAME (frame)->visible)
Jim Blandy's avatar
Jim Blandy committed
862
    return Qt;
Jim Blandy's avatar
Jim Blandy committed
863
  if (XFRAME (frame)->iconified)
864
    return Qicon;
Jim Blandy's avatar
Jim Blandy committed
865 866 867
  return Qnil;
}

Jim Blandy's avatar
Jim Blandy committed
868
DEFUN ("visible-frame-list", Fvisible_frame_list, Svisible_frame_list,
Jim Blandy's avatar
Jim Blandy committed
869
       0, 0, 0,
Jim Blandy's avatar
Jim Blandy committed
870
       "Return a list of all frames now \"visible\" (being updated).")
Jim Blandy's avatar
Jim Blandy committed
871 872
  ()
{
Jim Blandy's avatar
Jim Blandy committed
873 874
  Lisp_Object tail, frame;
  struct frame *f;
Jim Blandy's avatar
Jim Blandy committed
875 876 877
  Lisp_Object value;

  value = Qnil;
Jim Blandy's avatar
Jim Blandy committed
878
  for (tail = Vframe_list; CONSP (tail); tail = XCONS (tail)->cdr)
Jim Blandy's avatar
Jim Blandy committed
879
    {
Jim Blandy's avatar
Jim Blandy committed
880 881
      frame = XCONS (tail)->car;
      if (XTYPE (frame) != Lisp_Frame)
Jim Blandy's avatar
Jim Blandy committed
882
	continue;
Jim Blandy's avatar
Jim Blandy committed
883 884 885
      f = XFRAME (frame);
      if (f->visible)
	value = Fcons (frame, value);
Jim Blandy's avatar
Jim Blandy committed
886 887 888
    }
  return value;
}
Jim Blandy's avatar
Jim Blandy committed
889 890 891



Jim Blandy's avatar
Jim Blandy committed
892
DEFUN ("redirect-frame-focus", Fredirect_frame_focus, Sredirect_frame_focus,
Jim Blandy's avatar
Jim Blandy committed
893
       1, 2, 0,
Jim Blandy's avatar
Jim Blandy committed
894 895 896
  "Arrange for keystrokes typed at FRAME to be sent to FOCUS-FRAME.\n\
This means that, after reading a keystroke typed at FRAME,\n\
`last-event-frame' will be FOCUS-FRAME.\n\
Jim Blandy's avatar
Jim Blandy committed
897
\n\
Jim Blandy's avatar
Jim Blandy committed
898 899
If FOCUS-FRAME is omitted or eq to FRAME, any existing redirection is\n\
cancelled, and the frame again receives its own keystrokes.\n\
Jim Blandy's avatar
Jim Blandy committed
900
\n\
Jim Blandy's avatar
Jim Blandy committed
901 902
The redirection lasts until the next call to `redirect-frame-focus'\n\