frame.c 71.7 KB
Newer Older
Jim Blandy's avatar
Jim Blandy committed
1
/* Generic frame functions.
2
   Copyright (C) 1993, 1994, 1995, 1997, 1999, 2000 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
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
18 19
the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.  */
Jim Blandy's avatar
Jim Blandy committed
20

21
#include <config.h>
22 23

#include <stdio.h>
24
#include "lisp.h"
Karl Heuer's avatar
Karl Heuer committed
25
#include "charset.h"
26
#ifdef HAVE_X_WINDOWS
Andreas Schwab's avatar
Andreas Schwab committed
27
#include "xterm.h"
Karl Heuer's avatar
Karl Heuer committed
28
#endif
Andrew Innes's avatar
Andrew Innes committed
29 30 31
#ifdef WINDOWSNT
#include "w32term.h"
#endif
32 33 34
#ifdef macintosh
#include "macterm.h"
#endif
35 36 37 38
#include "buffer.h"
/* These help us bind and responding to switch-frame events.  */
#include "commands.h"
#include "keyboard.h"
39
#include "frame.h"
40 41 42
#ifdef HAVE_WINDOW_SYSTEM
#include "fontset.h"
#endif
43
#include "termhooks.h"
Andreas Schwab's avatar
Andreas Schwab committed
44
#include "dispextern.h"
45
#include "window.h"
Morten Welinder's avatar
Morten Welinder committed
46 47
#ifdef MSDOS
#include "msdos.h"
48
#include "dosfns.h"
Morten Welinder's avatar
Morten Welinder committed
49
#endif
Jim Blandy's avatar
Jim Blandy committed
50

51
Lisp_Object Qframep;
Jim Blandy's avatar
Jim Blandy committed
52
Lisp_Object Qframe_live_p;
53 54
Lisp_Object Qheight;
Lisp_Object Qicon;
Jim Blandy's avatar
Jim Blandy committed
55
Lisp_Object Qminibuffer;
56 57 58 59
Lisp_Object Qmodeline;
Lisp_Object Qname;
Lisp_Object Qonly;
Lisp_Object Qunsplittable;
60
Lisp_Object Qmenu_bar_lines;
61
Lisp_Object Qtool_bar_lines;
62 63
Lisp_Object Qwidth;
Lisp_Object Qx;
64
Lisp_Object Qw32;
65
Lisp_Object Qpc;
66
Lisp_Object Qmac;
67
Lisp_Object Qvisible;
68
Lisp_Object Qbuffer_predicate;
69
Lisp_Object Qbuffer_list;
70
Lisp_Object Qtitle;
71
Lisp_Object Qdisplay_type;
72
Lisp_Object Qbackground_mode;
73
Lisp_Object Qinhibit_default_face_x_resources;
Jim Blandy's avatar
Jim Blandy committed
74

75
Lisp_Object Vterminal_frame;
76
Lisp_Object Vdefault_frame_alist;
77
Lisp_Object Vmouse_position_function;
78 79 80 81 82 83 84 85

static void
set_menu_bar_lines_1 (window, n)
  Lisp_Object window;
  int n;
{
  struct window *w = XWINDOW (window);

86
  XSETFASTINT (w->last_modified, 0);
87 88
  XSETFASTINT (w->top, XFASTINT (w->top) + n);
  XSETFASTINT (w->height, XFASTINT (w->height) - n);
89 90 91 92 93
  
  if (INTEGERP (w->orig_top))
    XSETFASTINT (w->orig_top, XFASTINT (w->orig_top) + n);
  if (INTEGERP (w->orig_height))
    XSETFASTINT (w->orig_height, XFASTINT (w->orig_height) - n);
94 95 96 97 98 99 100 101 102 103 104 105 106

  /* Handle just the top child in a vertical split.  */
  if (!NILP (w->vchild))
    set_menu_bar_lines_1 (w->vchild, n);

  /* Adjust all children in a horizontal split.  */
  for (window = w->hchild; !NILP (window); window = w->next)
    {
      w = XWINDOW (window);
      set_menu_bar_lines_1 (window, n);
    }
}

107
void
108 109 110 111 112 113 114 115 116
set_menu_bar_lines (f, value, oldval)
     struct frame *f;
     Lisp_Object value, oldval;
{
  int nlines;
  int olines = FRAME_MENU_BAR_LINES (f);

  /* Right now, menu bars don't work properly in minibuf-only frames;
     most of the commands try to apply themselves to the minibuffer
Karl Heuer's avatar
Karl Heuer committed
117
     frame itself, and get an error because you can't switch buffers
118 119 120 121 122 123 124 125 126
     in or split the minibuffer window.  */
  if (FRAME_MINIBUF_ONLY_P (f))
    return;

  if (INTEGERP (value))
    nlines = XINT (value);
  else
    nlines = 0;

127 128 129 130 131 132
  if (nlines != olines)
    {
      windows_or_buffers_changed++;
      FRAME_WINDOW_SIZES_CHANGED (f) = 1;
      FRAME_MENU_BAR_LINES (f) = nlines;
      set_menu_bar_lines_1 (f->root_window, nlines - olines);
133
      adjust_glyphs (f);
134
    }
135 136 137 138 139
}

Lisp_Object Vemacs_iconified;
Lisp_Object Vframe_list;

140 141
struct x_output tty_display;

Jim Blandy's avatar
Jim Blandy committed
142 143
extern Lisp_Object Vminibuffer_list;
extern Lisp_Object get_minibuffer ();
144 145
extern Lisp_Object Fhandle_switch_frame ();
extern Lisp_Object Fredirect_frame_focus ();
Karl Heuer's avatar
Karl Heuer committed
146
extern Lisp_Object x_get_focus_frame ();
Jim Blandy's avatar
Jim Blandy committed
147

Jim Blandy's avatar
Jim Blandy committed
148 149 150
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
151
`x' for an Emacs frame that is really an X window,\n\
152 153
`w32' for an Emacs frame that is a window on MS-Windows display,\n\
`mac' for an Emacs frame on a Macintosh display,\n\
Morten Welinder's avatar
Morten Welinder committed
154
`pc' for a direct-write MS-DOS frame.\n\
Richard M. Stallman's avatar
Richard M. Stallman committed
155
See also `frame-live-p'.")
Jim Blandy's avatar
Jim Blandy committed
156 157
  (object)
     Lisp_Object object;
Jim Blandy's avatar
Jim Blandy committed
158
{
159
  if (!FRAMEP (object))
Jim Blandy's avatar
Jim Blandy committed
160
    return Qnil;
Jim Blandy's avatar
Jim Blandy committed
161
  switch (XFRAME (object)->output_method)
Jim Blandy's avatar
Jim Blandy committed
162 163 164 165
    {
    case output_termcap:
      return Qt;
    case output_x_window:
166
      return Qx;
167 168
    case output_w32:
      return Qw32;
169 170
    case output_msdos_raw:
      return Qpc;
171 172
    case output_mac:
      return Qmac;
Jim Blandy's avatar
Jim Blandy committed
173 174 175 176 177
    default:
      abort ();
    }
}

Jim Blandy's avatar
Jim Blandy committed
178
DEFUN ("frame-live-p", Fframe_live_p, Sframe_live_p, 1, 1, 0,
Jim Blandy's avatar
Jim Blandy committed
179 180 181 182 183
  "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
184 185 186
  (object)
     Lisp_Object object;
{
Jim Blandy's avatar
Jim Blandy committed
187 188 189
  return ((FRAMEP (object)
	   && FRAME_LIVE_P (XFRAME (object)))
	  ? Fframep (object)
Jim Blandy's avatar
Jim Blandy committed
190 191 192
	  : Qnil);
}

Jim Blandy's avatar
Jim Blandy committed
193 194
struct frame *
make_frame (mini_p)
Jim Blandy's avatar
Jim Blandy committed
195 196
     int mini_p;
{
Jim Blandy's avatar
Jim Blandy committed
197 198
  Lisp_Object frame;
  register struct frame *f;
Jim Blandy's avatar
Jim Blandy committed
199 200
  register Lisp_Object root_window;
  register Lisp_Object mini_window;
201 202 203 204 205 206 207 208 209
  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
210

211 212 213 214 215 216
  f->desired_matrix = 0;
  f->current_matrix = 0;
  f->desired_pool = 0;
  f->current_pool = 0;
  f->glyphs_initialized_p = 0;
  f->decode_mode_spec_buffer = 0;
Jim Blandy's avatar
Jim Blandy committed
217
  f->visible = 0;
218
  f->async_visible = 0;
219
  f->output_data.nothing = 0;
Jim Blandy's avatar
Jim Blandy committed
220
  f->iconified = 0;
221
  f->async_iconified = 0;
Jim Blandy's avatar
Jim Blandy committed
222 223 224 225
  f->wants_modeline = 1;
  f->auto_raise = 0;
  f->auto_lower = 0;
  f->no_split = 0;
226
  f->garbaged = 1;
Jim Blandy's avatar
Jim Blandy committed
227
  f->has_minibuffer = mini_p;
228
  f->focus_frame = Qnil;
229
  f->explicit_name = 0;
230
  f->can_have_scroll_bars = 0;
231
  f->vertical_scroll_bar_type = vertical_scroll_bar_none;
Jim Blandy's avatar
Jim Blandy committed
232
  f->param_alist = Qnil;
233 234
  f->scroll_bars = Qnil;
  f->condemned_scroll_bars = Qnil;
235
  f->face_alist = Qnil;
236
  f->face_cache = NULL;
237
  f->menu_bar_items = Qnil;
238 239
  f->menu_bar_vector = Qnil;
  f->menu_bar_items_used = 0;
240
  f->buffer_predicate = Qnil;
241
  f->buffer_list = Qnil;
242 243 244
#ifdef MULTI_KBOARD
  f->kboard = initial_kboard;
#endif
245
  f->namebuf = 0;
246
  f->title = Qnil;
247
  f->menu_bar_window = Qnil;
248
  f->tool_bar_window = Qnil;
249
  f->tool_bar_items = Qnil;
250
  f->desired_tool_bar_string = f->current_tool_bar_string = Qnil;
251
  f->n_tool_bar_items = 0;
Jim Blandy's avatar
Jim Blandy committed
252

253
  root_window = make_window ();
Jim Blandy's avatar
Jim Blandy committed
254 255
  if (mini_p)
    {
256
      mini_window = make_window ();
Jim Blandy's avatar
Jim Blandy committed
257 258 259
      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
260 261
      XWINDOW (mini_window)->frame = frame;
      f->minibuffer_window = mini_window;
Jim Blandy's avatar
Jim Blandy committed
262 263 264 265 266
    }
  else
    {
      mini_window = Qnil;
      XWINDOW (root_window)->next = Qnil;
Jim Blandy's avatar
Jim Blandy committed
267
      f->minibuffer_window = Qnil;
Jim Blandy's avatar
Jim Blandy committed
268 269
    }

Jim Blandy's avatar
Jim Blandy committed
270
  XWINDOW (root_window)->frame = frame;
Jim Blandy's avatar
Jim Blandy committed
271 272 273

  /* 10 is arbitrary,
     just so that there is "something there."
Jim Blandy's avatar
Jim Blandy committed
274
     Correct size will be set up later with change_frame_size.  */
Jim Blandy's avatar
Jim Blandy committed
275

276
  SET_FRAME_WIDTH (f, 10);
Jim Blandy's avatar
Jim Blandy committed
277
  f->height = 10;
Jim Blandy's avatar
Jim Blandy committed
278

279 280
  XSETFASTINT (XWINDOW (root_window)->width, 10);
  XSETFASTINT (XWINDOW (root_window)->height, (mini_p ? 9 : 10));
Jim Blandy's avatar
Jim Blandy committed
281 282 283

  if (mini_p)
    {
284 285 286
      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
287 288
    }

Jim Blandy's avatar
Jim Blandy committed
289
  /* Choose a buffer for the frame's root window.  */
Jim Blandy's avatar
Jim Blandy committed
290 291 292 293 294 295 296 297
  {
    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] == ' ')
298
      buf = Fother_buffer (buf, Qnil, Qnil);
299

300 301 302 303 304 305 306
    /* Use set_window_buffer, not Fset_window_buffer, and don't let
       hooks be run by it.  The reason is that the whole frame/window
       arrangement is not yet fully intialized at this point.  Windows
       don't have the right size, glyph matrices aren't initialized
       etc.  Running Lisp functions at this point surely ends in a
       SEGV.  */
    set_window_buffer (root_window, buf, 0);
307
    f->buffer_list = Fcons (buf, Qnil);
Jim Blandy's avatar
Jim Blandy committed
308 309
  }

Jim Blandy's avatar
Jim Blandy committed
310 311 312
  if (mini_p)
    {
      XWINDOW (mini_window)->buffer = Qt;
313 314 315 316 317
      set_window_buffer (mini_window,
			 (NILP (Vminibuffer_list)
			  ? get_minibuffer (0)
			  : Fcar (Vminibuffer_list)),
			 0);
Jim Blandy's avatar
Jim Blandy committed
318 319
    }

Jim Blandy's avatar
Jim Blandy committed
320 321
  f->root_window = root_window;
  f->selected_window = root_window;
Jim Blandy's avatar
Jim Blandy committed
322 323
  /* Make sure this window seems more recently used than
     a newly-created, never-selected window.  */
324
  XSETFASTINT (XWINDOW (f->selected_window)->use_time, ++window_select_count);
Jim Blandy's avatar
Jim Blandy committed
325

Jim Blandy's avatar
Jim Blandy committed
326
  return f;
Jim Blandy's avatar
Jim Blandy committed
327 328
}

329
#ifdef HAVE_WINDOW_SYSTEM
Jim Blandy's avatar
Jim Blandy committed
330
/* Make a frame using a separate minibuffer window on another frame.
Jim Blandy's avatar
Jim Blandy committed
331 332 333
   MINI_WINDOW is the minibuffer window to use.  nil means use the
   default (the global minibuffer).  */

Jim Blandy's avatar
Jim Blandy committed
334
struct frame *
335
make_frame_without_minibuffer (mini_window, kb, display)
Jim Blandy's avatar
Jim Blandy committed
336
     register Lisp_Object mini_window;
337
     KBOARD *kb;
338
     Lisp_Object display;
Jim Blandy's avatar
Jim Blandy committed
339
{
Jim Blandy's avatar
Jim Blandy committed
340
  register struct frame *f;
341
  struct gcpro gcpro1;
Jim Blandy's avatar
Jim Blandy committed
342

343 344
  if (!NILP (mini_window))
    CHECK_LIVE_WINDOW (mini_window, 0);
Jim Blandy's avatar
Jim Blandy committed
345

346
#ifdef MULTI_KBOARD
347 348
  if (!NILP (mini_window)
      && XFRAME (XWINDOW (mini_window)->frame)->kboard != kb)
349 350 351
    error ("frame and minibuffer must be on the same display");
#endif

Jim Blandy's avatar
Jim Blandy committed
352 353
  /* Make a frame containing just a root window.  */
  f = make_frame (0);
Jim Blandy's avatar
Jim Blandy committed
354

355 356 357 358 359 360
  if (NILP (mini_window))
    {
      /* Use default-minibuffer-frame if possible.  */
      if (!FRAMEP (kb->Vdefault_minibuffer_frame)
	  || ! FRAME_LIVE_P (XFRAME (kb->Vdefault_minibuffer_frame)))
	{
361 362 363 364
          Lisp_Object frame_dummy;

          XSETFRAME (frame_dummy, f);
          GCPRO1 (frame_dummy);
365
	  /* If there's no minibuffer frame to use, create one.  */
366 367 368
	  kb->Vdefault_minibuffer_frame =
	    call1 (intern ("make-initial-minibuffer-frame"), display);
          UNGCPRO;
369
	}
370
   
371 372
      mini_window = XFRAME (kb->Vdefault_minibuffer_frame)->minibuffer_window;
    }
373

Jim Blandy's avatar
Jim Blandy committed
374
  f->minibuffer_window = mini_window;
375 376 377 378 379 380 381 382

  /* Make the chosen minibuffer window display the proper minibuffer,
     unless it is already showing a minibuffer.  */
  if (NILP (Fmemq (XWINDOW (mini_window)->buffer, Vminibuffer_list)))
    Fset_window_buffer (mini_window,
			(NILP (Vminibuffer_list)
			 ? get_minibuffer (0)
			 : Fcar (Vminibuffer_list)));
Jim Blandy's avatar
Jim Blandy committed
383
  return f;
Jim Blandy's avatar
Jim Blandy committed
384 385
}

Jim Blandy's avatar
Jim Blandy committed
386
/* Make a frame containing only a minibuffer window.  */
Jim Blandy's avatar
Jim Blandy committed
387

Jim Blandy's avatar
Jim Blandy committed
388 389
struct frame *
make_minibuffer_frame ()
Jim Blandy's avatar
Jim Blandy committed
390
{
Jim Blandy's avatar
Jim Blandy committed
391
  /* First make a frame containing just a root window, no minibuffer.  */
Jim Blandy's avatar
Jim Blandy committed
392

Jim Blandy's avatar
Jim Blandy committed
393
  register struct frame *f = make_frame (0);
Jim Blandy's avatar
Jim Blandy committed
394
  register Lisp_Object mini_window;
Jim Blandy's avatar
Jim Blandy committed
395
  register Lisp_Object frame;
Jim Blandy's avatar
Jim Blandy committed
396

397
  XSETFRAME (frame, f);
Jim Blandy's avatar
Jim Blandy committed
398

399
  f->auto_raise = 0;
Jim Blandy's avatar
Jim Blandy committed
400 401 402 403
  f->auto_lower = 0;
  f->no_split = 1;
  f->wants_modeline = 0;
  f->has_minibuffer = 1;
Jim Blandy's avatar
Jim Blandy committed
404 405 406 407 408

  /* 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
409
  mini_window = f->minibuffer_window = f->root_window;
Jim Blandy's avatar
Jim Blandy committed
410 411
  XWINDOW (mini_window)->mini_p = Qt;
  XWINDOW (mini_window)->next = Qnil;
412
  XWINDOW (mini_window)->prev = Qnil;
Jim Blandy's avatar
Jim Blandy committed
413
  XWINDOW (mini_window)->frame = frame;
Jim Blandy's avatar
Jim Blandy committed
414 415 416 417

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

  Fset_window_buffer (mini_window,
Jim Blandy's avatar
Jim Blandy committed
418
		      (NILP (Vminibuffer_list)
Jim Blandy's avatar
Jim Blandy committed
419 420
		       ? get_minibuffer (0)
		       : Fcar (Vminibuffer_list)));
Jim Blandy's avatar
Jim Blandy committed
421
  return f;
Jim Blandy's avatar
Jim Blandy committed
422
}
423
#endif /* HAVE_WINDOW_SYSTEM */
Jim Blandy's avatar
Jim Blandy committed
424

Jim Blandy's avatar
Jim Blandy committed
425
/* Construct a frame that refers to the terminal (stdin and stdout).  */
Jim Blandy's avatar
Jim Blandy committed
426

427 428
static int terminal_frame_count;

Jim Blandy's avatar
Jim Blandy committed
429 430
struct frame *
make_terminal_frame ()
Jim Blandy's avatar
Jim Blandy committed
431
{
Jim Blandy's avatar
Jim Blandy committed
432
  register struct frame *f;
433
  Lisp_Object frame;
434 435
  char name[20];

436 437 438 439 440
#ifdef MULTI_KBOARD
  if (!initial_kboard)
    {
      initial_kboard = (KBOARD *) xmalloc (sizeof (KBOARD));
      init_kboard (initial_kboard);
441 442
      initial_kboard->next_kboard = all_kboards;
      all_kboards = initial_kboard;
443 444 445
    }
#endif

446 447 448
  /* The first call must initialize Vframe_list.  */
  if (! (NILP (Vframe_list) || CONSP (Vframe_list)))
    Vframe_list = Qnil;
Jim Blandy's avatar
Jim Blandy committed
449 450

  f = make_frame (1);
451

452
  XSETFRAME (frame, f);
453 454
  Vframe_list = Fcons (frame, Vframe_list);

455
  terminal_frame_count++;
456 457
  sprintf (name, "F%d", terminal_frame_count);
  f->name = build_string (name);
458 459 460

  f->visible = 1;		/* FRAME_SET_VISIBLE wd set frame_garbaged. */
  f->async_visible = 1;		/* Don't let visible be cleared later. */
461 462
#ifdef MSDOS
  f->output_data.x = &the_only_x_display;
463 464 465
  if (!inhibit_window_system
      && (!FRAMEP (selected_frame) || !FRAME_LIVE_P (XFRAME (selected_frame))
	  || XFRAME (selected_frame)->output_method == output_msdos_raw))
466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482
    {
      f->output_method = output_msdos_raw;
      /* This initialization of foreground and background pixels is
	 only important for the initial frame created in temacs.  If
	 we don't do that, we get black background and foreground in
	 the dumped Emacs because the_only_x_display is a static
	 variable, hence it is born all-zeroes, and zero is the code
	 for the black color.  Other frames all inherit their pixels
	 from what's already in the_only_x_display.  */
      if ((!FRAMEP (selected_frame) || !FRAME_LIVE_P (XFRAME (selected_frame)))
	  && f->output_data.x->background_pixel == 0
	  && f->output_data.x->foreground_pixel == 0)
	{
	  f->output_data.x->background_pixel = FACE_TTY_DEFAULT_BG_COLOR;
	  f->output_data.x->foreground_pixel = FACE_TTY_DEFAULT_FG_COLOR;
	}
    }
483 484 485
  else
    f->output_method = output_termcap;
#else
486
#ifdef macintosh
487 488
  make_mac_terminal_frame (f);
#else
489
  f->output_data.x = &tty_display;
490
#endif /* macintosh */
491
#endif /* MSDOS */
492

493 494
  if (!noninteractive)
    init_frame_faces (f);
495

Jim Blandy's avatar
Jim Blandy committed
496
  return f;
Jim Blandy's avatar
Jim Blandy committed
497
}
498 499

DEFUN ("make-terminal-frame", Fmake_terminal_frame, Smake_terminal_frame,
500 501 502 503 504 505
       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.")
506 507 508 509
  (parms)
     Lisp_Object parms;
{
  struct frame *f;
510
  Lisp_Object frame, tem;
511
  struct frame *sf = SELECTED_FRAME ();
512

513
#ifdef MSDOS
514 515
  if (sf->output_method != output_msdos_raw
      && sf->output_method != output_termcap)
516
    abort ();
517 518 519
#else /* not MSDOS */

#ifdef macintosh
520
  if (sf->output_method != output_mac)
521
    error ("Not running on a Macintosh screen; cannot make a new Macintosh frame");
522
#else
523
  if (sf->output_method != output_termcap)
524
    error ("Not using an ASCII terminal now; cannot make a new ASCII frame");
525
#endif
526
#endif /* not MSDOS */
527 528

  f = make_terminal_frame ();
529

530 531
  change_frame_size (f, FRAME_HEIGHT (sf),
		     FRAME_WIDTH (sf), 0, 0, 0);
532
  adjust_glyphs (f);
533 534
  calculate_costs (f);
  XSETFRAME (frame, f);
535
  Fmodify_frame_parameters (frame, Vdefault_frame_alist);
536
  Fmodify_frame_parameters (frame, parms);
537 538 539

  /* Make the frame face alist be frame-specific, so that each
     frame could change its face definitions independently.  */
540
  f->face_alist = Fcopy_alist (sf->face_alist);
541 542 543 544 545
  /* Simple Fcopy_alist isn't enough, because we need the contents of
     the vectors which are the CDRs of associations in face_alist to
     be copied as well.  */
  for (tem = f->face_alist; CONSP (tem); tem = XCDR (tem))
    XCDR (XCAR (tem)) = Fcopy_sequence (XCDR (XCAR (tem)));
546 547
  return frame;
}
Jim Blandy's avatar
Jim Blandy committed
548

549
Lisp_Object
550
do_switch_frame (frame, no_enter, track)
Jim Blandy's avatar
Jim Blandy committed
551
     Lisp_Object frame, no_enter;
552
     int track;
Jim Blandy's avatar
Jim Blandy committed
553
{
554 555
  struct frame *sf = SELECTED_FRAME ();
  
556 557 558
  /* If FRAME is a switch-frame event, extract the frame we should
     switch to.  */
  if (CONSP (frame)
559 560 561
      && EQ (XCAR (frame), Qswitch_frame)
      && CONSP (XCDR (frame)))
    frame = XCAR (XCDR (frame));
562

563 564 565 566 567 568
  /* 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
569

570
  if (sf == XFRAME (frame))
Jim Blandy's avatar
Jim Blandy committed
571
    return frame;
Jim Blandy's avatar
Jim Blandy committed
572

573 574 575
  /* This is too greedy; it causes inappropriate focus redirection
     that's hard to get rid of.  */
#if 0
576 577 578 579 580 581 582
  /* 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.  */
583 584 585
  if (track)
    {
      Lisp_Object tail;
586

587
      for (tail = Vframe_list; CONSP (tail); tail = XCDR (tail))
588 589
	{
	  Lisp_Object focus;
590

591
	  if (!FRAMEP (XCAR (tail)))
592
	    abort ();
593

594
	  focus = FRAME_FOCUS_FRAME (XFRAME (XCAR (tail)));
595

596
	  if (FRAMEP (focus) && XFRAME (focus) == SELECTED_FRAME ())
597
	    Fredirect_frame_focus (XCAR (tail), frame);
598 599 600 601
	}
    }
#else /* ! 0 */
  /* Instead, apply it only to the frame we're pointing to.  */
602 603
#ifdef HAVE_WINDOW_SYSTEM
  if (track && (FRAME_WINDOW_P (XFRAME (frame))))
604 605 606
    {
      Lisp_Object focus, xfocus;

607
      xfocus = x_get_focus_frame (XFRAME (frame));
608 609 610
      if (FRAMEP (xfocus))
	{
	  focus = FRAME_FOCUS_FRAME (XFRAME (xfocus));
611
	  if (FRAMEP (focus) && XFRAME (focus) == SELECTED_FRAME ())
612 613 614 615 616
	    Fredirect_frame_focus (xfocus, frame);
	}
    }
#endif /* HAVE_X_WINDOWS */
#endif /* ! 0 */
617

618 619 620
  selected_frame = frame;
  if (! FRAME_MINIBUF_ONLY_P (XFRAME (selected_frame)))
    last_nonminibuf_frame = XFRAME (selected_frame);
Jim Blandy's avatar
Jim Blandy committed
621

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

624
  /* We want to make sure that the next event generates a frame-switch
625
     event to the appropriate frame.  This seems kludgy to me, but
626 627 628 629
     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.  */
630
  internal_last_event_frame = Qnil;
631

Jim Blandy's avatar
Jim Blandy committed
632
  return frame;
Jim Blandy's avatar
Jim Blandy committed
633 634
}

635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656
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.")
657 658
  (event, no_enter)
     Lisp_Object event, no_enter;
659
{
660 661
  /* Preserve prefix arg that the command loop just cleared.  */
  current_kboard->Vprefix_arg = Vcurrent_prefix_arg;
662
  call1 (Vrun_hooks, Qmouse_leave_buffer_hook);
663
  return do_switch_frame (event, no_enter, 0);
664 665
}

666 667 668 669 670 671 672 673
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;
}
674

Jim Blandy's avatar
Jim Blandy committed
675 676
DEFUN ("selected-frame", Fselected_frame, Sselected_frame, 0, 0, 0,
  "Return the frame that is now selected.")
Jim Blandy's avatar
Jim Blandy committed
677 678
  ()
{
679
  return selected_frame;
Jim Blandy's avatar
Jim Blandy committed
680
}
681

Jim Blandy's avatar
Jim Blandy committed
682 683
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
684 685 686
  (window)
     Lisp_Object window;
{
687
  CHECK_LIVE_WINDOW (window, 0);
Jim Blandy's avatar
Jim Blandy committed
688
  return XWINDOW (window)->frame;
Jim Blandy's avatar
Jim Blandy committed
689 690
}

691 692 693 694 695 696 697 698 699
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))
700
    w = SELECTED_FRAME ()->root_window;
701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717
  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;
}

718 719 720 721 722 723 724 725
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
726
DEFUN ("frame-root-window", Fframe_root_window, Sframe_root_window, 0, 1, 0,
727 728
       "Returns the root-window of FRAME.\n\
If omitted, FRAME defaults to the currently selected frame.")
Jim Blandy's avatar
Jim Blandy committed
729 730
  (frame)
     Lisp_Object frame;
Jim Blandy's avatar
Jim Blandy committed
731
{
732 733
  Lisp_Object window;
  
Jim Blandy's avatar
Jim Blandy committed
734
  if (NILP (frame))
735
    window = SELECTED_FRAME ()->root_window;
Jim Blandy's avatar
Jim Blandy committed
736
  else
737 738 739 740 741 742
    {
      CHECK_LIVE_FRAME (frame, 0);
      window = XFRAME (frame)->root_window;
    }
  
  return window;
Jim Blandy's avatar
Jim Blandy committed
743 744
}

Jim Blandy's avatar
Jim Blandy committed
745 746
DEFUN ("frame-selected-window", Fframe_selected_window,
       Sframe_selected_window, 0, 1, 0,
747 748
  "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
749 750
  (frame)
     Lisp_Object frame;
Jim Blandy's avatar
Jim Blandy committed
751
{
752 753
  Lisp_Object window;
  
Jim Blandy's avatar
Jim Blandy committed
754
  if (NILP (frame))
755
    window = SELECTED_FRAME ()->selected_window;
Jim Blandy's avatar
Jim Blandy committed
756
  else
757 758 759 760
    {
      CHECK_LIVE_FRAME (frame, 0);
      window = XFRAME (frame)->selected_window;
    }
Jim Blandy's avatar
Jim Blandy committed
761

762
  return window;
Jim Blandy's avatar
Jim Blandy committed
763 764
}

765 766 767 768 769 770 771 772 773
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))
774 775 776
    frame = selected_frame;
  
  CHECK_LIVE_FRAME (frame, 0);
777 778 779 780 781
  CHECK_LIVE_WINDOW (window, 1);

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

782
  if (EQ (frame, selected_frame))
783 784 785 786 787
    return Fselect_window (window);

  return XFRAME (frame)->selected_window = window;
}

Jim Blandy's avatar
Jim Blandy committed
788
DEFUN ("frame-list", Fframe_list, Sframe_list,
Jim Blandy's avatar
Jim Blandy committed
789
       0, 0, 0,
Jim Blandy's avatar
Jim Blandy committed
790
       "Return a list of all frames.")
Jim Blandy's avatar
Jim Blandy committed
791 792
  ()
{
Jim Blandy's avatar
Jim Blandy committed
793
  return Fcopy_sequence (Vframe_list);
Jim Blandy's avatar
Jim Blandy committed
794 795
}

Jim Blandy's avatar
Jim Blandy committed
796 797
/* Return the next frame in the frame list after FRAME.
   If MINIBUF is nil, exclude minibuffer-only frames.
798 799
   If MINIBUF is a window, include only its own frame
   and any frame now using that window as the minibuffer.
800
   If MINIBUF is `visible', include all visible frames.
801
   If MINIBUF is 0, include all visible and iconified frames.
802 803
   Otherwise, include all frames.  */

Jim Blandy's avatar
Jim Blandy committed
804
Lisp_Object
Jim Blandy's avatar
Jim Blandy committed
805 806
next_frame (frame, minibuf)
     Lisp_Object frame;
Jim Blandy's avatar
Jim Blandy committed
807
     Lisp_Object minibuf;
Jim Blandy's avatar
Jim Blandy committed
808 809 810 811
{
  Lisp_Object tail;
  int passed = 0;

Jim Blandy's avatar
Jim Blandy committed
812 813
  /* There must always be at least one frame in Vframe_list.  */
  if (! CONSP (Vframe_list))
Jim Blandy's avatar
Jim Blandy committed
814 815
    abort ();

Jim Blandy's avatar
Jim Blandy committed
816 817 818 819
  /* 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
820
  while (1)
821
    for (tail = Vframe_list; CONSP (tail); tail = XCDR (tail))
Jim Blandy's avatar
Jim Blandy committed
822
      {
823
	Lisp_Object f;
824

825
	f = XCAR (tail);
826 827 828

	if (passed
	    && FRAME_KBOARD (XFRAME (f)) == FRAME_KBOARD (XFRAME (frame)))
Jim Blandy's avatar
Jim Blandy committed
829
	  {
830 831 832 833 834 835 836 837 838 839 840 841 842
	    /* 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;
	      }
843 844 845 846 847 848
	    else if (EQ (minibuf, Qvisible))
	      {
		FRAME_SAMPLE_VISIBILITY (XFRAME (f));
		if (FRAME_VISIBLE_P (XFRAME (f)))
		  return f;
	      }
849
	    else if (INTEGERP (minibuf) && XINT (minibuf) == 0)
850 851 852 853 854 855
	      {
		FRAME_SAMPLE_VISIBILITY (XFRAME (f));
		if (FRAME_VISIBLE_P (XFRAME (f))
		    || FRAME_ICONIFIED_P (XFRAME (f)))
		  return f;
	      }
856
	    else if (WINDOWP (minibuf))
857
	      {
858
		if (EQ (FRAME_MINIBUF_WINDOW (XFRAME (f)), minibuf)
859 860 861
		    || EQ (WINDOW_FRAME (XWINDOW (minibuf)), f)
		    || EQ (WINDOW_FRAME (XWINDOW (minibuf)),
			   FRAME_FOCUS_FRAME (XFRAME (f))))
862 863 864
		  return f;
	      }
	    else
Jim Blandy's avatar
Jim Blandy committed
865
	      return f;
Jim Blandy's avatar
Jim Blandy committed
866
	  }
Jim Blandy's avatar
Jim Blandy committed
867

868
	if (EQ (frame, f))
Jim Blandy's avatar
Jim Blandy committed
869 870 871 872
	  passed++;
      }
}

Jim Blandy's avatar
Jim Blandy committed
873 874
/* Return the previous frame in the frame list before FRAME.
   If MINIBUF is nil, exclude minibuffer-only frames.
875 876
   If MINIBUF is a window, include only its own frame
   and any frame now using that window as the minibuffer.
877
   If MINIBUF is `visible', include all visible frames.
878
   If MINIBUF is 0, include all visible and iconified frames.
879 880
   Otherwise, include all frames.  */

Jim Blandy's avatar
Jim Blandy committed
881
Lisp_Object
Jim Blandy's avatar
Jim Blandy committed
882 883
prev_frame (frame, minibuf)
     Lisp_Object frame;
Jim Blandy's avatar
Jim Blandy committed
884
     Lisp_Object minibuf;
Jim Blandy's avatar
Jim Blandy committed
885 886 887 888
{
  Lisp_Object tail;
  Lisp_Object prev;

Jim Blandy's avatar
Jim Blandy committed
889 890
  /* There must always be at least one frame in Vframe_list.  */
  if (! CONSP (Vframe_list))
Jim Blandy's avatar
Jim Blandy committed
891 892
    abort ();

Jim Blandy's avatar
Jim Blandy committed
893
  prev = Qnil;
894
  for (tail = Vframe_list; CONSP (tail); tail = XCDR (tail))
Jim Blandy's avatar
Jim Blandy committed
895
    {
896
      Lisp_Object f;
Jim Blandy's avatar
Jim Blandy committed
897

898
      f = XCAR (tail);
899
      if (!FRAMEP (f))
900
	abort ();
Jim Blandy's avatar
Jim Blandy committed
901

902 903
      if (EQ (frame, f) && !NILP (prev))
	return prev;
Jim Blandy's avatar
Jim Blandy committed
904

905
      if (FRAME_KBOARD (XFRAME (f)) == FRAME_KBOARD (XFRAME (frame)))
906
	{
907 908 909 910 911 912 913 914 915 916
	  /* Decide whether this frame is eligible to be returned,
	     according to minibuf.  */
	  if (NILP (minibuf))
	    {
	      if (! FRAME_MINIBUF_ONLY_P (XFRAME (f)))
		prev = f;
	    }
	  else if (WINDOWP (minibuf))
	    {
	      if (EQ (FRAME_MINIBUF_WINDOW (XFRAME (f)), minibuf)
917 918 919
		  || EQ (WINDOW_FRAME (XWINDOW (minibuf)), f)
		  || EQ (WINDOW_FRAME (XWINDOW (minibuf)),
			 FRAME_FOCUS_FRAME (XFRAME (f))))
920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935
		prev = f;
	    }
	  else if (EQ (minibuf, Qvisible))
	    {
	      FRAME_SAMPLE_VISIBILITY (XFRAME (f