frame.c 66.5 KB
Newer Older
Jim Blandy's avatar
Jim Blandy committed
1
/* Generic frame functions.
2
   Copyright (C) 1993, 1994, 1995 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.  */

20
#include <config.h>
21 22

#include <stdio.h>
23 24
#include "lisp.h"
#include "frame.h"
25
#include "termhooks.h"
26
#include "window.h"
Morten Welinder's avatar
Morten Welinder committed
27 28 29
#ifdef MSDOS
#include "msdos.h"
#endif
Jim Blandy's avatar
Jim Blandy committed
30

Jim Blandy's avatar
Jim Blandy committed
31
#ifdef MULTI_FRAME
Jim Blandy's avatar
Jim Blandy committed
32

Jim Blandy's avatar
Jim Blandy committed
33
#include "buffer.h"
Jim Blandy's avatar
Jim Blandy committed
34

35 36 37 38
/* These help us bind and responding to switch-frame events.  */
#include "commands.h"
#include "keyboard.h"

Jim Blandy's avatar
Jim Blandy committed
39
Lisp_Object Vemacs_iconified;
Jim Blandy's avatar
Jim Blandy committed
40 41 42
Lisp_Object Vframe_list;
Lisp_Object Vterminal_frame;
Lisp_Object Vdefault_frame_alist;
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;
Jim Blandy's avatar
Jim Blandy committed
79
Lisp_Object Qframe_live_p;
80 81
Lisp_Object Qheight;
Lisp_Object Qicon;
Jim Blandy's avatar
Jim Blandy committed
82
Lisp_Object Qminibuffer;
83 84 85 86
Lisp_Object Qmodeline;
Lisp_Object Qname;
Lisp_Object Qonly;
Lisp_Object Qunsplittable;
87
Lisp_Object Qmenu_bar_lines;
88 89
Lisp_Object Qwidth;
Lisp_Object Qx;
90
Lisp_Object Qvisible;
91
Lisp_Object Qbuffer_predicate;
Jim Blandy's avatar
Jim Blandy committed
92 93 94

extern Lisp_Object Vminibuffer_list;
extern Lisp_Object get_minibuffer ();
95 96
extern Lisp_Object Fhandle_switch_frame ();
extern Lisp_Object Fredirect_frame_focus ();
Karl Heuer's avatar
Karl Heuer committed
97
extern Lisp_Object x_get_focus_frame ();
Jim Blandy's avatar
Jim Blandy committed
98

Jim Blandy's avatar
Jim Blandy committed
99 100 101
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\
Morten Welinder's avatar
Morten Welinder committed
102 103
`x' for an Emacs frame that is really an X window,\n\
`pc' for a direct-write MS-DOS frame.\n\
Richard M. Stallman's avatar
Richard M. Stallman committed
104
See also `frame-live-p'.")
Jim Blandy's avatar
Jim Blandy committed
105 106
  (object)
     Lisp_Object object;
Jim Blandy's avatar
Jim Blandy committed
107
{
108
  if (!FRAMEP (object))
Jim Blandy's avatar
Jim Blandy committed
109
    return Qnil;
Jim Blandy's avatar
Jim Blandy committed
110
  switch (XFRAME (object)->output_method)
Jim Blandy's avatar
Jim Blandy committed
111 112 113 114
    {
    case output_termcap:
      return Qt;
    case output_x_window:
115
      return Qx;
Morten Welinder's avatar
Morten Welinder committed
116
      /* The `pc' case is in the Fframep below.  */
Jim Blandy's avatar
Jim Blandy committed
117 118 119 120 121
    default:
      abort ();
    }
}

Jim Blandy's avatar
Jim Blandy committed
122
DEFUN ("frame-live-p", Fframe_live_p, Sframe_live_p, 1, 1, 0,
Jim Blandy's avatar
Jim Blandy committed
123 124 125 126 127
  "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
128 129 130
  (object)
     Lisp_Object object;
{
Jim Blandy's avatar
Jim Blandy committed
131 132 133
  return ((FRAMEP (object)
	   && FRAME_LIVE_P (XFRAME (object)))
	  ? Fframep (object)
Jim Blandy's avatar
Jim Blandy committed
134 135 136
	  : Qnil);
}

Jim Blandy's avatar
Jim Blandy committed
137 138
struct frame *
make_frame (mini_p)
Jim Blandy's avatar
Jim Blandy committed
139 140
     int mini_p;
{
Jim Blandy's avatar
Jim Blandy committed
141 142
  Lisp_Object frame;
  register struct frame *f;
Jim Blandy's avatar
Jim Blandy committed
143 144
  register Lisp_Object root_window;
  register Lisp_Object mini_window;
145 146 147 148 149 150 151 152 153
  register struct Lisp_Vector *vec;
  int i;

  vec = allocate_vectorlike ((EMACS_INT) VECSIZE (struct frame));
  for (i = 0; i < VECSIZE (struct frame); i++)
    XSETFASTINT (vec->contents[i], 0);
  vec->size = VECSIZE (struct frame);
  f = (struct frame *)vec;
  XSETFRAME (frame, f);
Jim Blandy's avatar
Jim Blandy committed
154 155 156 157 158 159

  f->cursor_x = 0;
  f->cursor_y = 0;
  f->current_glyphs = 0;
  f->desired_glyphs = 0;
  f->visible = 0;
160
  f->async_visible = 0;
Jim Blandy's avatar
Jim Blandy committed
161 162
  f->display.nothing = 0;
  f->iconified = 0;
163
  f->async_iconified = 0;
Jim Blandy's avatar
Jim Blandy committed
164 165 166 167 168 169
  f->wants_modeline = 1;
  f->auto_raise = 0;
  f->auto_lower = 0;
  f->no_split = 0;
  f->garbaged = 0;
  f->has_minibuffer = mini_p;
170
  f->focus_frame = Qnil;
171
  f->explicit_name = 0;
172 173
  f->can_have_scroll_bars = 0;
  f->has_vertical_scroll_bars = 0;
Jim Blandy's avatar
Jim Blandy committed
174
  f->param_alist = Qnil;
175 176
  f->scroll_bars = Qnil;
  f->condemned_scroll_bars = Qnil;
177
  f->face_alist = Qnil;
178
  f->menu_bar_items = Qnil;
179 180
  f->menu_bar_vector = Qnil;
  f->menu_bar_items_used = 0;
181
  f->buffer_predicate = Qnil;
182 183 184
#ifdef MULTI_KBOARD
  f->kboard = initial_kboard;
#endif
185
  f->namebuf = 0;
Jim Blandy's avatar
Jim Blandy committed
186

187
  root_window = make_window ();
Jim Blandy's avatar
Jim Blandy committed
188 189
  if (mini_p)
    {
190
      mini_window = make_window ();
Jim Blandy's avatar
Jim Blandy committed
191 192 193
      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
194 195
      XWINDOW (mini_window)->frame = frame;
      f->minibuffer_window = mini_window;
Jim Blandy's avatar
Jim Blandy committed
196 197 198 199 200
    }
  else
    {
      mini_window = Qnil;
      XWINDOW (root_window)->next = Qnil;
Jim Blandy's avatar
Jim Blandy committed
201
      f->minibuffer_window = Qnil;
Jim Blandy's avatar
Jim Blandy committed
202 203
    }

Jim Blandy's avatar
Jim Blandy committed
204
  XWINDOW (root_window)->frame = frame;
Jim Blandy's avatar
Jim Blandy committed
205 206 207

  /* 10 is arbitrary,
     just so that there is "something there."
Jim Blandy's avatar
Jim Blandy committed
208
     Correct size will be set up later with change_frame_size.  */
Jim Blandy's avatar
Jim Blandy committed
209

Jim Blandy's avatar
Jim Blandy committed
210 211
  f->width = 10;
  f->height = 10;
Jim Blandy's avatar
Jim Blandy committed
212

213 214
  XSETFASTINT (XWINDOW (root_window)->width, 10);
  XSETFASTINT (XWINDOW (root_window)->height, (mini_p ? 9 : 10));
Jim Blandy's avatar
Jim Blandy committed
215 216 217

  if (mini_p)
    {
218 219 220
      XSETFASTINT (XWINDOW (mini_window)->width, 10);
      XSETFASTINT (XWINDOW (mini_window)->top, 9);
      XSETFASTINT (XWINDOW (mini_window)->height, 1);
Jim Blandy's avatar
Jim Blandy committed
221 222
    }

Jim Blandy's avatar
Jim Blandy committed
223
  /* Choose a buffer for the frame's root window.  */
Jim Blandy's avatar
Jim Blandy committed
224 225 226 227 228 229 230 231
  {
    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] == ' ')
232
      buf = Fother_buffer (buf, Qnil);
Jim Blandy's avatar
Jim Blandy committed
233 234 235
    Fset_window_buffer (root_window, buf);
  }

Jim Blandy's avatar
Jim Blandy committed
236 237 238 239
  if (mini_p)
    {
      XWINDOW (mini_window)->buffer = Qt;
      Fset_window_buffer (mini_window,
Jim Blandy's avatar
Jim Blandy committed
240
			  (NILP (Vminibuffer_list)
Jim Blandy's avatar
Jim Blandy committed
241 242 243 244
			   ? get_minibuffer (0)
			   : Fcar (Vminibuffer_list)));
    }

Jim Blandy's avatar
Jim Blandy committed
245 246
  f->root_window = root_window;
  f->selected_window = root_window;
Jim Blandy's avatar
Jim Blandy committed
247 248
  /* Make sure this window seems more recently used than
     a newly-created, never-selected window.  */
249
  XSETFASTINT (XWINDOW (f->selected_window)->use_time, ++window_select_count);
Jim Blandy's avatar
Jim Blandy committed
250

Jim Blandy's avatar
Jim Blandy committed
251
  return f;
Jim Blandy's avatar
Jim Blandy committed
252 253
}

Jim Blandy's avatar
Jim Blandy committed
254
/* Make a frame using a separate minibuffer window on another frame.
Jim Blandy's avatar
Jim Blandy committed
255 256 257
   MINI_WINDOW is the minibuffer window to use.  nil means use the
   default (the global minibuffer).  */

Jim Blandy's avatar
Jim Blandy committed
258
struct frame *
259
make_frame_without_minibuffer (mini_window, kb, display)
Jim Blandy's avatar
Jim Blandy committed
260
     register Lisp_Object mini_window;
261
     KBOARD *kb;
262
     Lisp_Object display;
Jim Blandy's avatar
Jim Blandy committed
263
{
Jim Blandy's avatar
Jim Blandy committed
264
  register struct frame *f;
Jim Blandy's avatar
Jim Blandy committed
265

266 267
  if (!NILP (mini_window))
    CHECK_LIVE_WINDOW (mini_window, 0);
Jim Blandy's avatar
Jim Blandy committed
268

269
#ifdef MULTI_KBOARD
270 271
  if (!NILP (mini_window)
      && XFRAME (XWINDOW (mini_window)->frame)->kboard != kb)
272 273 274
    error ("frame and minibuffer must be on the same display");
#endif

Jim Blandy's avatar
Jim Blandy committed
275 276
  /* Make a frame containing just a root window.  */
  f = make_frame (0);
Jim Blandy's avatar
Jim Blandy committed
277

278 279 280 281 282 283 284 285 286 287 288 289
  if (NILP (mini_window))
    {
      /* Use default-minibuffer-frame if possible.  */
      if (!FRAMEP (kb->Vdefault_minibuffer_frame)
	  || ! FRAME_LIVE_P (XFRAME (kb->Vdefault_minibuffer_frame)))
	{
	  /* If there's no minibuffer frame to use, create one.  */
	  kb->Vdefault_minibuffer_frame
	    = call1 (intern ("make-initial-minibuffer-frame"), display);
	}
      mini_window = XFRAME (kb->Vdefault_minibuffer_frame)->minibuffer_window;
    }
Jim Blandy's avatar
Jim Blandy committed
290
  /* Install the chosen minibuffer window, with proper buffer.  */
Jim Blandy's avatar
Jim Blandy committed
291
  f->minibuffer_window = mini_window;
Jim Blandy's avatar
Jim Blandy committed
292
  Fset_window_buffer (mini_window,
Jim Blandy's avatar
Jim Blandy committed
293
		      (NILP (Vminibuffer_list)
Jim Blandy's avatar
Jim Blandy committed
294 295
		       ? get_minibuffer (0)
		       : Fcar (Vminibuffer_list)));
Jim Blandy's avatar
Jim Blandy committed
296
  return f;
Jim Blandy's avatar
Jim Blandy committed
297 298
}

Jim Blandy's avatar
Jim Blandy committed
299
/* Make a frame containing only a minibuffer window.  */
Jim Blandy's avatar
Jim Blandy committed
300

Jim Blandy's avatar
Jim Blandy committed
301 302
struct frame *
make_minibuffer_frame ()
Jim Blandy's avatar
Jim Blandy committed
303
{
Jim Blandy's avatar
Jim Blandy committed
304
  /* First make a frame containing just a root window, no minibuffer.  */
Jim Blandy's avatar
Jim Blandy committed
305

Jim Blandy's avatar
Jim Blandy committed
306
  register struct frame *f = make_frame (0);
Jim Blandy's avatar
Jim Blandy committed
307
  register Lisp_Object mini_window;
Jim Blandy's avatar
Jim Blandy committed
308
  register Lisp_Object frame;
Jim Blandy's avatar
Jim Blandy committed
309

310
  XSETFRAME (frame, f);
Jim Blandy's avatar
Jim Blandy committed
311

312
  f->auto_raise = 0;
Jim Blandy's avatar
Jim Blandy committed
313 314 315 316
  f->auto_lower = 0;
  f->no_split = 1;
  f->wants_modeline = 0;
  f->has_minibuffer = 1;
Jim Blandy's avatar
Jim Blandy committed
317 318 319 320 321

  /* 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
322
  mini_window = f->minibuffer_window = f->root_window;
Jim Blandy's avatar
Jim Blandy committed
323 324
  XWINDOW (mini_window)->mini_p = Qt;
  XWINDOW (mini_window)->next = Qnil;
325
  XWINDOW (mini_window)->prev = Qnil;
Jim Blandy's avatar
Jim Blandy committed
326
  XWINDOW (mini_window)->frame = frame;
Jim Blandy's avatar
Jim Blandy committed
327 328 329 330

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

  Fset_window_buffer (mini_window,
Jim Blandy's avatar
Jim Blandy committed
331
		      (NILP (Vminibuffer_list)
Jim Blandy's avatar
Jim Blandy committed
332 333
		       ? get_minibuffer (0)
		       : Fcar (Vminibuffer_list)));
Jim Blandy's avatar
Jim Blandy committed
334
  return f;
Jim Blandy's avatar
Jim Blandy committed
335 336
}

Jim Blandy's avatar
Jim Blandy committed
337
/* Construct a frame that refers to the terminal (stdin and stdout).  */
Jim Blandy's avatar
Jim Blandy committed
338

339 340
static int terminal_frame_count;

Jim Blandy's avatar
Jim Blandy committed
341 342
struct frame *
make_terminal_frame ()
Jim Blandy's avatar
Jim Blandy committed
343
{
Jim Blandy's avatar
Jim Blandy committed
344
  register struct frame *f;
345
  Lisp_Object frame;
346 347
  char name[20];

348 349 350 351 352
#ifdef MULTI_KBOARD
  if (!initial_kboard)
    {
      initial_kboard = (KBOARD *) xmalloc (sizeof (KBOARD));
      init_kboard (initial_kboard);
353 354
      initial_kboard->next_kboard = all_kboards;
      all_kboards = initial_kboard;
355 356 357
    }
#endif

358 359 360
  /* The first call must initialize Vframe_list.  */
  if (! (NILP (Vframe_list) || CONSP (Vframe_list)))
    Vframe_list = Qnil;
Jim Blandy's avatar
Jim Blandy committed
361 362

  f = make_frame (1);
363

364
  XSETFRAME (frame, f);
365 366
  Vframe_list = Fcons (frame, Vframe_list);

367
  terminal_frame_count++;
368 369 370 371 372 373 374 375 376
  if (terminal_frame_count == 1)
    {
      f->name = build_string ("Emacs");
    }
  else
    {
      sprintf (name, "Emacs-%d", terminal_frame_count);
      f->name = build_string (name);
    }
377 378 379 380

  f->visible = 1;		/* FRAME_SET_VISIBLE wd set frame_garbaged. */
  f->async_visible = 1;		/* Don't let visible be cleared later. */
  f->display.nothing = 1;	/* Nonzero means frame isn't deleted.  */
Jim Blandy's avatar
Jim Blandy committed
381
  return f;
Jim Blandy's avatar
Jim Blandy committed
382
}
383 384

DEFUN ("make-terminal-frame", Fmake_terminal_frame, Smake_terminal_frame,
385 386 387 388 389 390
       1, 1, 0, "Create an additional terminal frame.\n\
You can create multiple frames on a text-only terminal in this way.\n\
Only the selected terminal frame is actually displayed.\n\
This function takes one argument, an alist specifying frame parameters.\n\
In practice, generally you don't need to specify any parameters.\n\
Note that changing the size of one terminal frame automatically affects all.")
391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408
  (parms)
     Lisp_Object parms;
{
  struct frame *f;
  Lisp_Object frame;

  if (selected_frame->output_method != output_termcap)
    error ("Not using an ASCII terminal now; cannot make a new ASCII frame");

  f = make_terminal_frame ();
  change_frame_size (f, FRAME_HEIGHT (selected_frame),
		     FRAME_WIDTH (selected_frame), 0, 0);
  remake_frame_glyphs (f);
  calculate_costs (f);
  XSETFRAME (frame, f);
  Fmodify_frame_parameters (frame, parms);
  return frame;
}
Jim Blandy's avatar
Jim Blandy committed
409

410
Lisp_Object
411
do_switch_frame (frame, no_enter, track)
Jim Blandy's avatar
Jim Blandy committed
412
     Lisp_Object frame, no_enter;
413
     int track;
Jim Blandy's avatar
Jim Blandy committed
414
{
415 416 417 418 419 420 421
  /* 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;

422 423 424 425 426 427
  /* This used to say CHECK_LIVE_FRAME, but apparently it's possible for
     a switch-frame event to arrive after a frame is no longer live,
     especially when deleting the initial frame during startup.  */
  CHECK_FRAME (frame, 0);
  if (! FRAME_LIVE_P (XFRAME (frame)))
    return Qnil;
Jim Blandy's avatar
Jim Blandy committed
428

Jim Blandy's avatar
Jim Blandy committed
429 430
  if (selected_frame == XFRAME (frame))
    return frame;
Jim Blandy's avatar
Jim Blandy committed
431

432 433 434
  /* This is too greedy; it causes inappropriate focus redirection
     that's hard to get rid of.  */
#if 0
435 436 437 438 439 440 441
  /* If a frame's focus has been redirected toward the currently
     selected frame, we should change the redirection to point to the
     newly selected frame.  This means that if the focus is redirected
     from a minibufferless frame to a surrogate minibuffer frame, we
     can use `other-window' to switch between all the frames using
     that minibuffer frame, and the focus redirection will follow us
     around.  */
442 443 444
  if (track)
    {
      Lisp_Object tail;
445

446 447 448
      for (tail = Vframe_list; CONSP (tail); tail = XCONS (tail)->cdr)
	{
	  Lisp_Object focus;
449

450
	  if (!FRAMEP (XCONS (tail)->car))
451
	    abort ();
452

453
	  focus = FRAME_FOCUS_FRAME (XFRAME (XCONS (tail)->car));
454

455
	  if (FRAMEP (focus) && XFRAME (focus) == selected_frame)
456 457 458 459 460 461
	    Fredirect_frame_focus (XCONS (tail)->car, frame);
	}
    }
#else /* ! 0 */
  /* Instead, apply it only to the frame we're pointing to.  */
#ifdef HAVE_X_WINDOWS
462
  if (track && FRAME_X_P (XFRAME (frame)))
463 464 465
    {
      Lisp_Object focus, xfocus;

466
      xfocus = x_get_focus_frame (XFRAME (frame));
467 468 469 470 471 472 473 474 475
      if (FRAMEP (xfocus))
	{
	  focus = FRAME_FOCUS_FRAME (XFRAME (xfocus));
	  if (FRAMEP (focus) && XFRAME (focus) == selected_frame)
	    Fredirect_frame_focus (xfocus, frame);
	}
    }
#endif /* HAVE_X_WINDOWS */
#endif /* ! 0 */
476

477 478 479 480 481 482
  if (FRAME_TERMCAP_P (XFRAME (frame)))
    {
      /* Since frames on an ASCII terminal share the same display area,
	 switching means we must redisplay the whole thing.  */
      windows_or_buffers_changed++;
      SET_FRAME_GARBAGED (XFRAME (frame));
483
      XSETFRAME (Vterminal_frame, frame);
484 485
    }

Jim Blandy's avatar
Jim Blandy committed
486 487 488
  selected_frame = XFRAME (frame);
  if (! FRAME_MINIBUF_ONLY_P (selected_frame))
    last_nonminibuf_frame = selected_frame;
Jim Blandy's avatar
Jim Blandy committed
489

Jim Blandy's avatar
Jim Blandy committed
490 491
  Fselect_window (XFRAME (frame)->selected_window);
  choose_minibuf_frame ();
Jim Blandy's avatar
Jim Blandy committed
492

493
  /* We want to make sure that the next event generates a frame-switch
494
     event to the appropriate frame.  This seems kludgy to me, but
495 496 497 498
     before you take it out, make sure that evaluating something like
     (select-window (frame-root-window (new-frame))) doesn't end up
     with your typing being interpreted in the new frame instead of
     the one you're actually typing in.  */
499
  internal_last_event_frame = Qnil;
500

Jim Blandy's avatar
Jim Blandy committed
501
  return frame;
Jim Blandy's avatar
Jim Blandy committed
502 503
}

504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528
DEFUN ("select-frame", Fselect_frame, Sselect_frame, 1, 2, "e",
  "Select the frame FRAME.\n\
Subsequent editing commands apply to its selected window.\n\
The selection of FRAME lasts until the next time the user does\n\
something to select a different frame, or until the next time this\n\
function is called.")
  (frame, no_enter)
    Lisp_Object frame, no_enter;
{
  return do_switch_frame (frame, no_enter, 1);
}


DEFUN ("handle-switch-frame", Fhandle_switch_frame, Shandle_switch_frame, 1, 2, "e",
  "Handle a switch-frame event EVENT.\n\
Switch-frame events are usually bound to this function.\n\
A switch-frame event tells Emacs that the window manager has requested\n\
that the user's events be directed to the frame mentioned in the event.\n\
This function selects the selected window of the frame of EVENT.\n\
\n\
If EVENT is frame object, handle it as if it were a switch-frame event\n\
to that frame.")
  (frame, no_enter)
     Lisp_Object frame, no_enter;
{
529 530
  /* Preserve prefix arg that the command loop just cleared.  */
  current_kboard->Vprefix_arg = Vcurrent_prefix_arg;
531 532 533
  return do_switch_frame (frame, no_enter, 0);
}

534 535 536 537 538 539 540 541
DEFUN ("ignore-event", Fignore_event, Signore_event, 0, 0, "",
  "Do nothing, but preserve any prefix argument already specified.\n\
This is a suitable binding for iconify-frame and make-frame-visible.")
     ()
{
  current_kboard->Vprefix_arg = Vcurrent_prefix_arg;
  return Qnil;
}
542

Jim Blandy's avatar
Jim Blandy committed
543 544
DEFUN ("selected-frame", Fselected_frame, Sselected_frame, 0, 0, 0,
  "Return the frame that is now selected.")
Jim Blandy's avatar
Jim Blandy committed
545 546 547
  ()
{
  Lisp_Object tem;
548
  XSETFRAME (tem, selected_frame);
Jim Blandy's avatar
Jim Blandy committed
549 550
  return tem;
}
551

Jim Blandy's avatar
Jim Blandy committed
552 553
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
554 555 556
  (window)
     Lisp_Object window;
{
557
  CHECK_LIVE_WINDOW (window, 0);
Jim Blandy's avatar
Jim Blandy committed
558
  return XWINDOW (window)->frame;
Jim Blandy's avatar
Jim Blandy committed
559 560
}

561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587
DEFUN ("frame-first-window", Fframe_first_window, Sframe_first_window, 0, 1, 0,
  "Returns the topmost, leftmost window of FRAME.\n\
If omitted, FRAME defaults to the currently selected frame.")
  (frame)
     Lisp_Object frame;
{
  Lisp_Object w;

  if (NILP (frame))
    w = selected_frame->root_window;
  else
    {
      CHECK_LIVE_FRAME (frame, 0);
      w = XFRAME (frame)->root_window;
    }
  while (NILP (XWINDOW (w)->buffer))
    {
      if (! NILP (XWINDOW (w)->hchild))
	w = XWINDOW (w)->hchild;
      else if (! NILP (XWINDOW (w)->vchild))
	w = XWINDOW (w)->vchild;
      else
	abort ();
    }
  return w;
}

588 589 590 591 592 593 594 595
DEFUN ("active-minibuffer-window", Factive_minibuffer_window,
       Sactive_minibuffer_window, 0, 0, 0,
       "Return the currently active minibuffer window, or nil if none.")
  ()
{
  return minibuf_level ? minibuf_window : Qnil;
}

Jim Blandy's avatar
Jim Blandy committed
596
DEFUN ("frame-root-window", Fframe_root_window, Sframe_root_window, 0, 1, 0,
597 598
       "Returns the root-window of FRAME.\n\
If omitted, FRAME defaults to the currently selected frame.")
Jim Blandy's avatar
Jim Blandy committed
599 600
  (frame)
     Lisp_Object frame;
Jim Blandy's avatar
Jim Blandy committed
601
{
Jim Blandy's avatar
Jim Blandy committed
602
  if (NILP (frame))
603
    XSETFRAME (frame, selected_frame);
Jim Blandy's avatar
Jim Blandy committed
604
  else
Jim Blandy's avatar
Jim Blandy committed
605
    CHECK_LIVE_FRAME (frame, 0);
Jim Blandy's avatar
Jim Blandy committed
606

Jim Blandy's avatar
Jim Blandy committed
607
  return XFRAME (frame)->root_window;
Jim Blandy's avatar
Jim Blandy committed
608 609
}

Jim Blandy's avatar
Jim Blandy committed
610 611
DEFUN ("frame-selected-window", Fframe_selected_window,
       Sframe_selected_window, 0, 1, 0,
612 613
  "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
614 615
  (frame)
     Lisp_Object frame;
Jim Blandy's avatar
Jim Blandy committed
616
{
Jim Blandy's avatar
Jim Blandy committed
617
  if (NILP (frame))
618
    XSETFRAME (frame, selected_frame);
Jim Blandy's avatar
Jim Blandy committed
619
  else
Jim Blandy's avatar
Jim Blandy committed
620
    CHECK_LIVE_FRAME (frame, 0);
Jim Blandy's avatar
Jim Blandy committed
621

Jim Blandy's avatar
Jim Blandy committed
622
  return XFRAME (frame)->selected_window;
Jim Blandy's avatar
Jim Blandy committed
623 624
}

625 626 627 628 629 630 631 632 633
DEFUN ("set-frame-selected-window", Fset_frame_selected_window,
       Sset_frame_selected_window, 2, 2, 0,
  "Set the selected window of frame object FRAME to WINDOW.\n\
If FRAME is nil, the selected frame is used.\n\
If FRAME is the selected frame, this makes WINDOW the selected window.")
  (frame, window)
     Lisp_Object frame, window;
{
  if (NILP (frame))
634
    XSETFRAME (frame, selected_frame);
635 636 637 638 639 640 641 642 643 644 645 646 647 648
  else
    CHECK_LIVE_FRAME (frame, 0);

  CHECK_LIVE_WINDOW (window, 1);

  if (! EQ (frame, WINDOW_FRAME (XWINDOW (window))))
    error ("In `set-frame-selected-window', WINDOW is not on FRAME");

  if (XFRAME (frame) == selected_frame)
    return Fselect_window (window);

  return XFRAME (frame)->selected_window = window;
}

Jim Blandy's avatar
Jim Blandy committed
649
DEFUN ("frame-list", Fframe_list, Sframe_list,
Jim Blandy's avatar
Jim Blandy committed
650
       0, 0, 0,
Jim Blandy's avatar
Jim Blandy committed
651
       "Return a list of all frames.")
Jim Blandy's avatar
Jim Blandy committed
652 653
  ()
{
Jim Blandy's avatar
Jim Blandy committed
654
  return Fcopy_sequence (Vframe_list);
Jim Blandy's avatar
Jim Blandy committed
655 656
}

Jim Blandy's avatar
Jim Blandy committed
657 658
/* Return the next frame in the frame list after FRAME.
   If MINIBUF is nil, exclude minibuffer-only frames.
659 660
   If MINIBUF is a window, include only its own frame
   and any frame now using that window as the minibuffer.
661
   If MINIBUF is `visible', include all visible frames.
662
   If MINIBUF is 0, include all visible and iconified frames.
663 664
   Otherwise, include all frames.  */

Jim Blandy's avatar
Jim Blandy committed
665
Lisp_Object
Jim Blandy's avatar
Jim Blandy committed
666 667
next_frame (frame, minibuf)
     Lisp_Object frame;
Jim Blandy's avatar
Jim Blandy committed
668
     Lisp_Object minibuf;
Jim Blandy's avatar
Jim Blandy committed
669 670 671 672
{
  Lisp_Object tail;
  int passed = 0;

Jim Blandy's avatar
Jim Blandy committed
673 674
  /* There must always be at least one frame in Vframe_list.  */
  if (! CONSP (Vframe_list))
Jim Blandy's avatar
Jim Blandy committed
675 676
    abort ();

Jim Blandy's avatar
Jim Blandy committed
677 678 679 680
  /* If this frame is dead, it won't be in Vframe_list, and we'll loop
     forever.  Forestall that.  */
  CHECK_LIVE_FRAME (frame, 0);

Jim Blandy's avatar
Jim Blandy committed
681
  while (1)
Jim Blandy's avatar
Jim Blandy committed
682
    for (tail = Vframe_list; CONSP (tail); tail = XCONS (tail)->cdr)
Jim Blandy's avatar
Jim Blandy committed
683
      {
684
	Lisp_Object f;
685

686
	f = XCONS (tail)->car;
Jim Blandy's avatar
Jim Blandy committed
687
	if (passed)
Jim Blandy's avatar
Jim Blandy committed
688
	  {
689 690 691 692 693 694 695 696 697 698 699 700 701
	    /* 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;
	      }
702 703 704 705 706 707
	    else if (EQ (minibuf, Qvisible))
	      {
		FRAME_SAMPLE_VISIBILITY (XFRAME (f));
		if (FRAME_VISIBLE_P (XFRAME (f)))
		  return f;
	      }
708 709 710 711 712 713 714
	    else if (XFASTINT (minibuf) == 0)
	      {
		FRAME_SAMPLE_VISIBILITY (XFRAME (f));
		if (FRAME_VISIBLE_P (XFRAME (f))
		    || FRAME_ICONIFIED_P (XFRAME (f)))
		  return f;
	      }
715
	    else if (WINDOWP (minibuf))
716
	      {
717 718 719 720 721 722
		if (EQ (FRAME_MINIBUF_WINDOW (XFRAME (f)), minibuf)
		    /* Check that F either is, or has forwarded its focus to,
		       MINIBUF's frame.  */
		    && (EQ (WINDOW_FRAME (XWINDOW (minibuf)), f)
			|| EQ (WINDOW_FRAME (XWINDOW (minibuf)),
			       FRAME_FOCUS_FRAME (XFRAME (f)))))
723 724 725
		  return f;
	      }
	    else
Jim Blandy's avatar
Jim Blandy committed
726
	      return f;
Jim Blandy's avatar
Jim Blandy committed
727
	  }
Jim Blandy's avatar
Jim Blandy committed
728

729
	if (EQ (frame, f))
Jim Blandy's avatar
Jim Blandy committed
730 731 732 733
	  passed++;
      }
}

Jim Blandy's avatar
Jim Blandy committed
734 735
/* Return the previous frame in the frame list before FRAME.
   If MINIBUF is nil, exclude minibuffer-only frames.
736 737
   If MINIBUF is a window, include only its own frame
   and any frame now using that window as the minibuffer.
738
   If MINIBUF is `visible', include all visible frames.
739
   If MINIBUF is 0, include all visible and iconified frames.
740 741
   Otherwise, include all frames.  */

Jim Blandy's avatar
Jim Blandy committed
742
Lisp_Object
Jim Blandy's avatar
Jim Blandy committed
743 744
prev_frame (frame, minibuf)
     Lisp_Object frame;
Jim Blandy's avatar
Jim Blandy committed
745
     Lisp_Object minibuf;
Jim Blandy's avatar
Jim Blandy committed
746 747 748 749
{
  Lisp_Object tail;
  Lisp_Object prev;

Jim Blandy's avatar
Jim Blandy committed
750 751
  /* There must always be at least one frame in Vframe_list.  */
  if (! CONSP (Vframe_list))
Jim Blandy's avatar
Jim Blandy committed
752 753
    abort ();

Jim Blandy's avatar
Jim Blandy committed
754
  prev = Qnil;
755
  for (tail = Vframe_list; CONSP (tail); tail = XCONS (tail)->cdr)
Jim Blandy's avatar
Jim Blandy committed
756
    {
757
      Lisp_Object f;
Jim Blandy's avatar
Jim Blandy committed
758

759
      f = XCONS (tail)->car;
760
      if (!FRAMEP (f))
761
	abort ();
Jim Blandy's avatar
Jim Blandy committed
762

763 764
      if (EQ (frame, f) && !NILP (prev))
	return prev;
Jim Blandy's avatar
Jim Blandy committed
765

766 767 768 769 770 771
      /* 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
772
	}
Richard M. Stallman's avatar
Richard M. Stallman committed
773
      else if (WINDOWP (minibuf))
774
	{
775 776 777 778 779 780
	  if (EQ (FRAME_MINIBUF_WINDOW (XFRAME (f)), minibuf)
	      /* Check that F either is, or has forwarded its focus to,
		 MINIBUF's frame.  */
	      && (EQ (WINDOW_FRAME (XWINDOW (minibuf)), f)
		  || EQ (WINDOW_FRAME (XWINDOW (minibuf)),
			 FRAME_FOCUS_FRAME (XFRAME (f)))))
781 782
	    prev = f;
	}
783 784 785 786 787 788
      else if (EQ (minibuf, Qvisible))
	{
	  FRAME_SAMPLE_VISIBILITY (XFRAME (f));
	  if (FRAME_VISIBLE_P (XFRAME (f)))
	    prev = f;
	}
Richard M. Stallman's avatar
Richard M. Stallman committed
789
      else if (XFASTINT (minibuf) == 0)
790 791 792 793 794 795
	{
	  FRAME_SAMPLE_VISIBILITY (XFRAME (f));
	  if (FRAME_VISIBLE_P (XFRAME (f))
	      || FRAME_ICONIFIED_P (XFRAME (f)))
	    prev = f;
	}
796 797
      else
	prev = f;
Jim Blandy's avatar
Jim Blandy committed
798
    }
799 800 801 802 803 804 805 806 807 808 809

  /* 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
810 811
}

812

Jim Blandy's avatar
Jim Blandy committed
813 814
DEFUN ("next-frame", Fnext_frame, Snext_frame, 0, 2, 0,
  "Return the next frame in the frame list after FRAME.\n\
815
By default, skip minibuffer-only frames.\n\
816
If omitted, FRAME defaults to the selected frame.\n\
817
If optional argument MINIFRAME is nil, exclude minibuffer-only frames.\n\
818 819
If MINIBUF is a window, include only its own frame\n\
and any frame now using that window as the minibuffer.\n\
820
If MINIFRAME is `visible', include all visible frames.\n\
821
If MINIBUF is 0, include all visible and iconified frames.\n\
822
Otherwise, include all frames.")
Jim Blandy's avatar
Jim Blandy committed
823
  (frame, miniframe)
824
     Lisp_Object frame, miniframe;
Jim Blandy's avatar
Jim Blandy committed
825 826 827
{
  Lisp_Object tail;

Jim Blandy's avatar
Jim Blandy committed
828
  if (NILP (frame))
829
    XSETFRAME (frame, selected_frame);
Jim Blandy's avatar
Jim Blandy committed
830
  else
Jim Blandy's avatar
Jim Blandy committed
831
    CHECK_LIVE_FRAME (frame, 0);
Jim Blandy's avatar
Jim Blandy committed
832

Jim Blandy's avatar
Jim Blandy committed
833
  return next_frame (frame, miniframe);
Jim Blandy's avatar
Jim Blandy committed
834
}
Jim Blandy's avatar
Jim Blandy committed
835

836 837 838 839 840
DEFUN ("previous-frame", Fprevious_frame, Sprevious_frame, 0, 2, 0,
  "Return the previous frame in the frame list before FRAME.\n\
By default, skip minibuffer-only frames.\n\
If omitted, FRAME defaults to the selected frame.\n\
If optional argument MINIFRAME is nil, exclude minibuffer-only frames.\n\
841 842
If MINIBUF is a window, include only its own frame\n\
and any frame now using that window as the minibuffer.\n\
843
If MINIFRAME is `visible', include all visible frames.\n\
844
If MINIBUF is 0, include all visible and iconified frames.\n\
845
Otherwise, include all frames.")
846 847 848 849 850 851
  (frame, miniframe)
     Lisp_Object frame, miniframe;
{
  Lisp_Object tail;

  if (NILP (frame))
852
    XSETFRAME (frame, selected_frame);
853 854 855 856 857
  else
    CHECK_LIVE_FRAME (frame, 0);

  return prev_frame (frame, miniframe);
}
Jim Blandy's avatar
Jim Blandy committed
858

859 860 861
/* Return 1 if it is ok to delete frame F;
   0 if all frames aside from F are invisible.
   (Exception: if F is the terminal frame, and we are using X, return 1.)  */
Jim Blandy's avatar
Jim Blandy committed
862

863
int
864 865 866 867 868 869
other_visible_frames (f)
     FRAME_PTR f;
{
  /* We know the selected frame is visible,
     so if F is some other frame, it can't be the sole visible one.  */
  if (f == selected_frame)
870 871 872 873 874 875 876 877
    {
      Lisp_Object frames;
      int count = 0;

      for (frames = Vframe_list;
	   CONSP (frames);
	   frames = XCONS (frames)->cdr)
	{
878
	  Lisp_Object this;
879

880
	  this = XCONS (frames)->car;
881 882 883
	  /* Verify that the frame's window still exists
	     and we can still talk to it.  And note any recent change
	     in visibility.  */
884 885 886
#ifdef HAVE_X_WINDOWS
	  if (FRAME_X_P (XFRAME (this)))
	    {
887
	      x_sync (XFRAME (this));
888 889 890 891
	      FRAME_SAMPLE_VISIBILITY (XFRAME (this));
	    }
#endif

892 893 894 895
	  if (FRAME_VISIBLE_P (XFRAME (this))
	      || FRAME_ICONIFIED_P (XFRAME (this))
	      /* Allow deleting the terminal frame when at least
		 one X frame exists!  */
896
	      || (FRAME_X_P (XFRAME (this)) && !FRAME_X_P (f)))
897 898
	    count++;
	}
899
      return count > 1;
900
    }
901 902 903 904 905 906 907 908 909 910 911 912 913
  return 1;
}

DEFUN ("delete-frame", Fdelete_frame, Sdelete_frame, 0, 2, "",
  "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.\n\
Normally, you may not delete a frame if all other frames are invisible,\n\
but if the second optional argument FORCE is non-nil, you may do so.")
  (frame, force)
     Lisp_Object frame, force;
{
  struct frame *f;
914
  int minibuffer_selected;
915 916 917 918

  if (EQ (frame, Qnil))
    {
      f = selected_frame;
919
      XSETFRAME (frame, f);
920 921 922 923 924 925 926 927 928 929 930 931
    }
  else
    {
      CHECK_FRAME (frame, 0);
      f = XFRAME (frame);
    }

  if (! FRAME_LIVE_P (f))
    return Qnil;

  if (NILP (force) && !other_visible_frames (f))
    error ("Attempt to delete the sole visible or iconified frame");
Jim Blandy's avatar
Jim Blandy committed
932

Jim Blandy's avatar
Jim Blandy committed
933 934
  /* Does this frame have a minibuffer, and is it the surrogate
     minibuffer for any other frame?  */
935
  if (FRAME_HAS_MINIBUF_P (XFRAME (frame)))
Jim Blandy's avatar
Jim Blandy committed
936
    {
Jim Blandy's avatar
Jim Blandy committed
937
      Lisp_Object frames;
Jim Blandy's avatar
Jim Blandy committed
938

Jim Blandy's avatar
Jim Blandy committed
939 940 941
      for (frames = Vframe_list;
	   CONSP (frames);
	   frames = XCONS (frames)->cdr)
Jim Blandy's avatar
Jim Blandy committed
942
	{
943 944
	  Lisp_Object this;
	  this = XCONS (frames)->car;
Jim Blandy's avatar
Jim Blandy committed
945

Jim Blandy's avatar
Jim Blandy committed
946 947
	  if (! EQ (this, frame)
	      && EQ (frame,
948 949
		     WINDOW_FRAME (XWINDOW
				   (FRAME_MINIBUF_WINDOW (XFRAME (this))))))
Jim Blandy's avatar
Jim Blandy committed
950
	    error ("Attempt to delete a surrogate minibuffer frame");
Jim Blandy's avatar
Jim Blandy committed
951
	}
Jim Blandy's avatar
Jim Blandy committed
952 953
    }

954 955
  minibuffer_selected = EQ (minibuf_window, selected_window);

Jim Blandy's avatar
Jim Blandy committed
956 957
  /* Don't let the frame remain selected.  */
  if (f == selected_frame)
958
    do_switch_frame (next_frame (frame, Qt), Qnil, 0);
Jim Blandy's avatar
Jim Blandy committed
959

Jim Blandy's avatar
Jim Blandy committed
960 961
  /* 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
962
    {
Jim Blandy's avatar
Jim Blandy committed
963
      Fset_window_buffer (selected_frame->minibuffer_window,
Jim Blandy's avatar
Jim Blandy committed
964
			  XWINDOW (minibuf_window)->buffer);
Jim Blandy's avatar
Jim Blandy committed
965
      minibuf_window = selected_frame->minibuffer_window;
966 967 968 969 970

      /* If the dying minibuffer window was selected,
	 select the new one.  */
      if (minibuffer_selected)
	Fselect_window (minibuf_window);
Jim Blandy's avatar
Jim Blandy committed
971 972
    }

973 974 975 976 977 978
  /* Clear any X selections for this frame.  */
#ifdef HAVE_X_WINDOWS
  if (FRAME_X_P (f))
    x_clear_frame_selections (f);
#endif

979 980 981 982 983
  /* Mark all the windows that used to be on FRAME as deleted, and then
     remove the reference to them.  */
  delete_all_subwindows (XWINDOW (f->root_window));
  f->root_window = Qnil;

Jim Blandy's avatar
Jim Blandy committed
984
  Vframe_list = Fdelq (frame, Vframe_list);
985
  FRAME_SET_VISIBLE (f, 0);
Jim Blandy's avatar
Jim Blandy committed
986

Karl Heuer's avatar
Karl Heuer committed
987 988
  if (f->namebuf)
    free (f->namebuf);
989 990 991 992 993 994 995 996 997
  if (FRAME_CURRENT_GLYPHS (f))
    free_frame_glyphs (f, FRAME_CURRENT_GLYPHS (f));
  if (FRAME_DESIRED_GLYPHS (f))
    free_frame_glyphs (f, FRAME_DESIRED_GLYPHS (f));
  if (FRAME_TEMP_GLYPHS (f))
    free_frame_glyphs (f, FRAME_TEMP_GLYPHS (f));
  if (FRAME_INSERT_COST (f))
    free (FRAME_INSERT_COST (f));
  if (FRAME_DELETEN_COST (f))
998
    free (FRAME_DELETEN_COST (f));
999
  if (FRAME_INSERTN_COST (f))
1000
    free (FRAME_INSERTN_COST (f));
1001
  if (FRAME_DELETE_COST (f))
1002
    free (FRAME_DELETE_COST (f));
1003

1004 1005 1006 1007 1008
  /* Since some events are handled at the interrupt level, we may get
     an event for f at any time; if we zero out the frame's display
     now, then we may trip up the event-handling code.  Instead, we'll
     promise that the display of the frame must be valid until we have
     called the window-system-dependent frame destruction routine.  */
Jim Blandy's avatar
Jim Blandy committed