frame.c 144 KB
Newer Older
Jim Blandy's avatar
Jim Blandy committed
1
/* Generic frame functions.
Glenn Morris's avatar
Glenn Morris committed
2

3
Copyright (C) 1993-1995, 1997, 1999-2014 Free Software Foundation, Inc.
Jim Blandy's avatar
Jim Blandy committed
4 5 6

This file is part of GNU Emacs.

7
GNU Emacs is free software: you can redistribute it and/or modify
Jim Blandy's avatar
Jim Blandy committed
8
it under the terms of the GNU General Public License as published by
9 10
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
Jim Blandy's avatar
Jim Blandy committed
11 12 13 14 15 16 17

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
18
along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
Jim Blandy's avatar
Jim Blandy committed
19

20
#include <config.h>
21 22

#include <stdio.h>
23 24
#include <errno.h>
#include <limits.h>
25 26 27

#include <c-ctype.h>

28
#include "lisp.h"
29
#include "character.h"
30 31 32 33 34

#ifdef HAVE_WINDOW_SYSTEM
#include TERM_HEADER
#endif /* HAVE_WINDOW_SYSTEM */

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"
Kim F. Storm's avatar
Kim F. Storm committed
40
#include "blockinput.h"
41
#include "termchar.h"
42
#include "termhooks.h"
Andreas Schwab's avatar
Andreas Schwab committed
43
#include "dispextern.h"
44
#include "window.h"
45
#include "font.h"
Andreas Schwab's avatar
Andreas Schwab committed
46
#ifdef HAVE_WINDOW_SYSTEM
47 48
#include "fontset.h"
#endif
49
#include "cm.h"
Morten Welinder's avatar
Morten Welinder committed
50 51
#ifdef MSDOS
#include "msdos.h"
52
#include "dosfns.h"
Morten Welinder's avatar
Morten Welinder committed
53
#endif
Paul Eggert's avatar
Paul Eggert committed
54 55 56
#ifdef USE_X_TOOLKIT
#include "widget.h"
#endif
Jim Blandy's avatar
Jim Blandy committed
57

Chong Yidong's avatar
Chong Yidong committed
58 59 60 61
#ifdef HAVE_NS
Lisp_Object Qns_parse_geometry;
#endif

Kim F. Storm's avatar
Kim F. Storm committed
62 63
Lisp_Object Qframep, Qframe_live_p;
Lisp_Object Qicon, Qmodeline;
64
Lisp_Object Qonly, Qnone;
65
Lisp_Object Qx, Qw32, Qpc, Qns;
66
Lisp_Object Qvisible;
67
Lisp_Object Qdisplay_type;
68
static Lisp_Object Qbackground_mode;
69
Lisp_Object Qnoelisp;
Kim F. Storm's avatar
Kim F. Storm committed
70

71
static Lisp_Object Qx_frame_parameter;
Kim F. Storm's avatar
Kim F. Storm committed
72
Lisp_Object Qx_resource_name;
73
Lisp_Object Qterminal;
Kim F. Storm's avatar
Kim F. Storm committed
74 75 76 77 78 79 80 81

/* Frame parameters (set or reported).  */

Lisp_Object Qauto_raise, Qauto_lower;
Lisp_Object Qborder_color, Qborder_width;
Lisp_Object Qcursor_color, Qcursor_type;
Lisp_Object Qheight, Qwidth;
Lisp_Object Qicon_left, Qicon_top, Qicon_type, Qicon_name;
82
Lisp_Object Qtooltip;
Kim F. Storm's avatar
Kim F. Storm committed
83
Lisp_Object Qinternal_border_width;
84
Lisp_Object Qright_divider_width, Qbottom_divider_width;
Kim F. Storm's avatar
Kim F. Storm committed
85 86 87 88 89 90 91
Lisp_Object Qmouse_color;
Lisp_Object Qminibuffer;
Lisp_Object Qscroll_bar_width, Qvertical_scroll_bars;
Lisp_Object Qvisibility;
Lisp_Object Qscroll_bar_foreground, Qscroll_bar_background;
Lisp_Object Qscreen_gamma;
Lisp_Object Qline_spacing;
92
static Lisp_Object Quser_position, Quser_size;
Kim F. Storm's avatar
Kim F. Storm committed
93
Lisp_Object Qwait_for_wm;
94
static Lisp_Object Qwindow_id;
Kim F. Storm's avatar
Kim F. Storm committed
95
#ifdef HAVE_X_WINDOWS
96
static Lisp_Object Qouter_window_id;
Kim F. Storm's avatar
Kim F. Storm committed
97 98 99
#endif
Lisp_Object Qparent_id;
Lisp_Object Qtitle, Qname;
100
static Lisp_Object Qexplicit_name;
Kim F. Storm's avatar
Kim F. Storm committed
101
Lisp_Object Qunsplittable;
102
Lisp_Object Qmenu_bar_lines, Qtool_bar_lines, Qtool_bar_position;
Kim F. Storm's avatar
Kim F. Storm committed
103
Lisp_Object Qleft_fringe, Qright_fringe;
104 105
Lisp_Object Qbuffer_predicate;
static Lisp_Object Qbuffer_list, Qburied_buffer_list;
106
Lisp_Object Qtty_color_mode;
107
Lisp_Object Qtty, Qtty_type;
Jim Blandy's avatar
Jim Blandy committed
108

109
Lisp_Object Qfullscreen, Qfullwidth, Qfullheight, Qfullboth, Qmaximized;
110
Lisp_Object Qsticky;
Kenichi Handa's avatar
Kenichi Handa committed
111
Lisp_Object Qfont_backend;
112
Lisp_Object Qalpha;
Kim F. Storm's avatar
Kim F. Storm committed
113 114 115

Lisp_Object Qface_set_after_frame_default;

116 117
static Lisp_Object Qfocus_in_hook;
static Lisp_Object Qfocus_out_hook;
118
static Lisp_Object Qdelete_frame_functions;
119

120
static Lisp_Object Qgeometry, Qworkarea, Qmm_size, Qframes, Qsource;
121

122 123 124 125 126 127 128 129 130
/* The currently selected frame.  */

Lisp_Object selected_frame;

/* A frame which is not just a mini-buffer, or NULL if there are no such
   frames.  This is usually the most recent such frame that was selected.  */

static struct frame *last_nonminibuf_frame;

131
/* False means there are no visible garbaged frames.  */
132 133
bool frame_garbaged;

134 135 136 137
#ifdef HAVE_WINDOW_SYSTEM
static void x_report_frame_params (struct frame *, Lisp_Object *);
#endif

138
/* These setters are used only in this file, so they can be private.  */
139
static void
140 141 142 143
fset_buffer_predicate (struct frame *f, Lisp_Object val)
{
  f->buffer_predicate = val;
}
144
static void
145 146 147 148 149
fset_minibuffer_window (struct frame *f, Lisp_Object val)
{
  f->minibuffer_window = val;
}

150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167
struct frame *
decode_live_frame (register Lisp_Object frame)
{
  if (NILP (frame))
    frame = selected_frame;
  CHECK_LIVE_FRAME (frame);
  return XFRAME (frame);
}

struct frame *
decode_any_frame (register Lisp_Object frame)
{
  if (NILP (frame))
    frame = selected_frame;
  CHECK_FRAME (frame);
  return XFRAME (frame);
}

168 169
#ifdef HAVE_WINDOW_SYSTEM

170 171 172
bool
window_system_available (struct frame *f)
{
173
  return f ? FRAME_WINDOW_P (f) || FRAME_MSDOS_P (f) : x_display_list != NULL;
174 175
}

176 177
#endif /* HAVE_WINDOW_SYSTEM */

178 179 180 181
struct frame *
decode_window_system_frame (Lisp_Object frame)
{
  struct frame *f = decode_live_frame (frame);
182

183 184 185 186 187 188 189 190 191 192 193 194 195
  if (!window_system_available (f))
    error ("Window system frame should be used");
  return f;
}

void
check_window_system (struct frame *f)
{
  if (!window_system_available (f))
    error (f ? "Window system frame should be used"
	   : "Window system is not in use or not initialized");
}

196
static void
197
set_menu_bar_lines_1 (Lisp_Object window, int n)
198 199
{
  struct window *w = XWINDOW (window);
200
  struct frame *f = XFRAME (WINDOW_FRAME (w));
201

202
  w->top_line += n;
203
  w->pixel_top += n * FRAME_LINE_HEIGHT (f);
204
  w->total_lines -= n;
205
  w->pixel_height -= n * FRAME_LINE_HEIGHT (f);
206

207
  /* Handle just the top child in a vertical split.  */
208 209 210 211 212 213 214 215 216
  if (WINDOW_VERTICAL_COMBINATION_P (w))
    set_menu_bar_lines_1 (w->contents, n);
  else if (WINDOW_HORIZONTAL_COMBINATION_P (w))
    /* Adjust all children in a horizontal split.  */
    for (window = w->contents; !NILP (window); window = w->next)
      {
	w = XWINDOW (window);
	set_menu_bar_lines_1 (window, n);
      }
217 218
}

219
void
220
set_menu_bar_lines (struct frame *f, Lisp_Object value, Lisp_Object oldval)
221 222 223 224 225 226
{
  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
227
     frame itself, and get an error because you can't switch buffers
228 229 230 231
     in or split the minibuffer window.  */
  if (FRAME_MINIBUF_ONLY_P (f))
    return;

232
  if (TYPE_RANGED_INTEGERP (int, value))
233 234 235 236
    nlines = XINT (value);
  else
    nlines = 0;

237 238
  if (nlines != olines)
    {
239
      windows_or_buffers_changed = 14;
240 241
      FRAME_WINDOW_SIZES_CHANGED (f) = 1;
      FRAME_MENU_BAR_LINES (f) = nlines;
242
      FRAME_MENU_BAR_HEIGHT (f) = nlines * FRAME_LINE_HEIGHT (f);
243
      set_menu_bar_lines_1 (f->root_window, nlines - olines);
244
      adjust_frame_glyphs (f);
245
    }
246 247 248 249
}

Lisp_Object Vframe_list;

Jim Blandy's avatar
Jim Blandy committed
250

Jim Blandy's avatar
Jim Blandy committed
251
DEFUN ("framep", Fframep, Sframep, 1, 1, 0,
252
       doc: /* Return non-nil if OBJECT is a frame.
253 254 255 256 257 258
Value is:
  t for a termcap frame (a character-only terminal),
 'x' for an Emacs frame that is really an X window,
 'w32' for an Emacs frame that is a window on MS-Windows display,
 'ns' for an Emacs frame on a GNUstep or Macintosh Cocoa display,
 'pc' for a direct-write MS-DOS frame.
259
See also `frame-live-p'.  */)
Dan Nicolaescu's avatar
Dan Nicolaescu committed
260
  (Lisp_Object object)
Jim Blandy's avatar
Jim Blandy committed
261
{
262
  if (!FRAMEP (object))
Jim Blandy's avatar
Jim Blandy committed
263
    return Qnil;
Jim Blandy's avatar
Jim Blandy committed
264
  switch (XFRAME (object)->output_method)
Jim Blandy's avatar
Jim Blandy committed
265
    {
266
    case output_initial: /* The initial frame is like a termcap frame. */
Jim Blandy's avatar
Jim Blandy committed
267 268 269
    case output_termcap:
      return Qt;
    case output_x_window:
270
      return Qx;
271 272
    case output_w32:
      return Qw32;
273 274
    case output_msdos_raw:
      return Qpc;
275 276
    case output_ns:
      return Qns;
Jim Blandy's avatar
Jim Blandy committed
277
    default:
278
      emacs_abort ();
Jim Blandy's avatar
Jim Blandy committed
279 280 281
    }
}

Jim Blandy's avatar
Jim Blandy committed
282
DEFUN ("frame-live-p", Fframe_live_p, Sframe_live_p, 1, 1, 0,
283 284
       doc: /* Return non-nil if OBJECT is a frame which has not been deleted.
Value is nil if OBJECT is not a live frame.  If object is a live
285
frame, the return value indicates what sort of terminal device it is
Pavel Janík's avatar
Pavel Janík committed
286
displayed on.  See the documentation of `framep' for possible
Pavel Janík's avatar
Pavel Janík committed
287
return values.  */)
Dan Nicolaescu's avatar
Dan Nicolaescu committed
288
  (Lisp_Object object)
Jim Blandy's avatar
Jim Blandy committed
289
{
Jim Blandy's avatar
Jim Blandy committed
290 291 292
  return ((FRAMEP (object)
	   && FRAME_LIVE_P (XFRAME (object)))
	  ? Fframep (object)
Jim Blandy's avatar
Jim Blandy committed
293 294 295
	  : Qnil);
}

Paul Eggert's avatar
Paul Eggert committed
296
DEFUN ("window-system", Fwindow_system, Swindow_system, 0, 1, 0,
297
       doc: /* The name of the window system that FRAME is displaying through.
298 299 300 301 302 303 304 305 306 307 308 309
The value is a symbol:
 nil for a termcap frame (a character-only terminal),
 'x' for an Emacs frame that is really an X window,
 'w32' for an Emacs frame that is a window on MS-Windows display,
 'ns' for an Emacs frame on a GNUstep or Macintosh Cocoa display,
 'pc' for a direct-write MS-DOS frame.

FRAME defaults to the currently selected frame.

Use of this function as a predicate is deprecated.  Instead,
use `display-graphic-p' or any of the other `display-*-p'
predicates which report frame's specific UI-related capabilities.  */)
Dan Nicolaescu's avatar
Dan Nicolaescu committed
310
  (Lisp_Object frame)
311 312 313 314 315 316 317 318 319 320 321 322 323 324
{
  Lisp_Object type;
  if (NILP (frame))
    frame = selected_frame;

  type = Fframep (frame);

  if (NILP (type))
    wrong_type_argument (Qframep, frame);

  if (EQ (type, Qt))
    return Qnil;
  else
    return type;
325
}
326

Jim Blandy's avatar
Jim Blandy committed
327
struct frame *
328
make_frame (bool mini_p)
Jim Blandy's avatar
Jim Blandy committed
329
{
Jim Blandy's avatar
Jim Blandy committed
330 331
  Lisp_Object frame;
  register struct frame *f;
332
  register struct window *rw, *mw;
Jim Blandy's avatar
Jim Blandy committed
333 334
  register Lisp_Object root_window;
  register Lisp_Object mini_window;
335 336

  f = allocate_frame ();
337
  XSETFRAME (frame, f);
Jim Blandy's avatar
Jim Blandy committed
338

339 340
  /* Initialize Lisp data.  Note that allocate_frame initializes all
     Lisp data to nil, so do it only for slots which should not be nil.  */
341
  fset_tool_bar_position (f, Qtop);
342 343 344 345 346

  /* Initialize non-Lisp data.  Note that allocate_frame zeroes out all
     non-Lisp data, so do it only for slots which should not be zero.
     To avoid subtle bugs and for the sake of readability, it's better to
     initialize enum members explicitly even if their values are zero.  */
347 348 349 350 351
  f->wants_modeline = true;
  f->redisplay = true;
  f->garbaged = true;
  f->column_width = 1;  /* !FRAME_WINDOW_P value.  */
  f->line_height = 1;  /* !FRAME_WINDOW_P value.  */
352
#ifdef HAVE_WINDOW_SYSTEM
353
  f->vertical_scroll_bar_type = vertical_scroll_bar_none;  
354
  f->want_fullscreen = FULLSCREEN_NONE;
355 356 357
#if ! defined (USE_GTK) && ! defined (HAVE_NS)
  f->last_tool_bar_item = -1;
#endif
358
#endif
Jim Blandy's avatar
Jim Blandy committed
359

360
  root_window = make_window ();
361
  rw = XWINDOW (root_window);
Jim Blandy's avatar
Jim Blandy committed
362 363
  if (mini_p)
    {
364
      mini_window = make_window ();
365 366 367 368 369
      mw = XWINDOW (mini_window);
      wset_next (rw, mini_window);
      wset_prev (mw, root_window);
      mw->mini = 1;
      wset_frame (mw, frame);
370
      fset_minibuffer_window (f, mini_window);
Jim Blandy's avatar
Jim Blandy committed
371 372 373 374
    }
  else
    {
      mini_window = Qnil;
375
      wset_next (rw, Qnil);
376
      fset_minibuffer_window (f, Qnil);
Jim Blandy's avatar
Jim Blandy committed
377 378
    }

379
  wset_frame (rw, frame);
Jim Blandy's avatar
Jim Blandy committed
380 381 382

  /* 10 is arbitrary,
     just so that there is "something there."
Jim Blandy's avatar
Jim Blandy committed
383
     Correct size will be set up later with change_frame_size.  */
Jim Blandy's avatar
Jim Blandy committed
384

385 386
  SET_FRAME_COLS (f, 10);
  FRAME_LINES (f) = 10;
387 388
  SET_FRAME_WIDTH (f, FRAME_COLS (f) * FRAME_COLUMN_WIDTH (f));
  SET_FRAME_HEIGHT (f, FRAME_LINES (f) * FRAME_LINE_HEIGHT (f));
Jim Blandy's avatar
Jim Blandy committed
389

390 391 392 393
  rw->total_cols = 10;
  rw->pixel_width = rw->total_cols * FRAME_COLUMN_WIDTH (f);
  rw->total_lines = mini_p ? 9 : 10;
  rw->pixel_height = rw->total_lines * FRAME_LINE_HEIGHT (f);
Jim Blandy's avatar
Jim Blandy committed
394 395 396

  if (mini_p)
    {
397 398 399 400 401 402
      mw->top_line = rw->total_lines;
      mw->pixel_top = rw->pixel_height;
      mw->total_cols = rw->total_cols;
      mw->pixel_width = rw->pixel_width;
      mw->total_lines = 1;
      mw->pixel_height = FRAME_LINE_HEIGHT (f);
Jim Blandy's avatar
Jim Blandy committed
403 404
    }

Jim Blandy's avatar
Jim Blandy committed
405
  /* Choose a buffer for the frame's root window.  */
Jim Blandy's avatar
Jim Blandy committed
406
  {
407
    Lisp_Object buf = Fcurrent_buffer ();
Jim Blandy's avatar
Jim Blandy committed
408

409 410
    /* If current buffer is hidden, try to find another one.  */
    if (BUFFER_HIDDEN_P (XBUFFER (buf)))
411
      buf = other_buffer_safely (buf);
412

413 414
    /* 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
Juanma Barranquero's avatar
Juanma Barranquero committed
415
       arrangement is not yet fully initialized at this point.  Windows
416 417 418
       don't have the right size, glyph matrices aren't initialized
       etc.  Running Lisp functions at this point surely ends in a
       SEGV.  */
419
    set_window_buffer (root_window, buf, 0, 0);
420
    fset_buffer_list (f, list1 (buf));
Jim Blandy's avatar
Jim Blandy committed
421 422
  }

Jim Blandy's avatar
Jim Blandy committed
423
  if (mini_p)
424 425 426 427 428
    set_window_buffer (mini_window,
		       (NILP (Vminibuffer_list)
			? get_minibuffer (0)
			: Fcar (Vminibuffer_list)),
		       0, 0);
Jim Blandy's avatar
Jim Blandy committed
429

430 431
  fset_root_window (f, root_window);
  fset_selected_window (f, root_window);
Jim Blandy's avatar
Jim Blandy committed
432 433
  /* Make sure this window seems more recently used than
     a newly-created, never-selected window.  */
434
  XWINDOW (f->selected_window)->use_time = ++window_select_count;
Jim Blandy's avatar
Jim Blandy committed
435

Jim Blandy's avatar
Jim Blandy committed
436
  return f;
Jim Blandy's avatar
Jim Blandy committed
437 438
}

439
#ifdef HAVE_WINDOW_SYSTEM
Jim Blandy's avatar
Jim Blandy committed
440
/* Make a frame using a separate minibuffer window on another frame.
Jim Blandy's avatar
Jim Blandy committed
441 442 443
   MINI_WINDOW is the minibuffer window to use.  nil means use the
   default (the global minibuffer).  */

Jim Blandy's avatar
Jim Blandy committed
444
struct frame *
445
make_frame_without_minibuffer (register Lisp_Object mini_window, KBOARD *kb, Lisp_Object display)
Jim Blandy's avatar
Jim Blandy committed
446
{
Jim Blandy's avatar
Jim Blandy committed
447
  register struct frame *f;
448
  struct gcpro gcpro1;
Jim Blandy's avatar
Jim Blandy committed
449

450
  if (!NILP (mini_window))
451
    CHECK_LIVE_WINDOW (mini_window);
Jim Blandy's avatar
Jim Blandy committed
452

453
  if (!NILP (mini_window)
454
      && FRAME_KBOARD (XFRAME (XWINDOW (mini_window)->frame)) != kb)
455
    error ("Frame and minibuffer must be on the same terminal");
456

Jim Blandy's avatar
Jim Blandy committed
457 458
  /* Make a frame containing just a root window.  */
  f = make_frame (0);
Jim Blandy's avatar
Jim Blandy committed
459

460 461 462
  if (NILP (mini_window))
    {
      /* Use default-minibuffer-frame if possible.  */
463 464
      if (!FRAMEP (KVAR (kb, Vdefault_minibuffer_frame))
	  || ! FRAME_LIVE_P (XFRAME (KVAR (kb, Vdefault_minibuffer_frame))))
465
	{
466 467 468 469
          Lisp_Object frame_dummy;

          XSETFRAME (frame_dummy, f);
          GCPRO1 (frame_dummy);
470
	  /* If there's no minibuffer frame to use, create one.  */
Paul Eggert's avatar
Paul Eggert committed
471 472
	  kset_default_minibuffer_frame
	    (kb, call1 (intern ("make-initial-minibuffer-frame"), display));
473
          UNGCPRO;
474
	}
475

476 477
      mini_window
	= XFRAME (KVAR (kb, Vdefault_minibuffer_frame))->minibuffer_window;
478
    }
479

480
  fset_minibuffer_window (f, mini_window);
481 482 483

  /* Make the chosen minibuffer window display the proper minibuffer,
     unless it is already showing a minibuffer.  */
484
  if (NILP (Fmemq (XWINDOW (mini_window)->contents, Vminibuffer_list)))
485 486 487 488 489 490
    /* Use set_window_buffer instead of Fset_window_buffer (see
       discussion of bug#11984, bug#12025, bug#12026).  */
    set_window_buffer (mini_window,
		       (NILP (Vminibuffer_list)
			? get_minibuffer (0)
			: Fcar (Vminibuffer_list)), 0, 0);
Jim Blandy's avatar
Jim Blandy committed
491
  return f;
Jim Blandy's avatar
Jim Blandy committed
492 493
}

Jim Blandy's avatar
Jim Blandy committed
494
/* Make a frame containing only a minibuffer window.  */
Jim Blandy's avatar
Jim Blandy committed
495

Jim Blandy's avatar
Jim Blandy committed
496
struct frame *
497
make_minibuffer_frame (void)
Jim Blandy's avatar
Jim Blandy committed
498
{
Jim Blandy's avatar
Jim Blandy committed
499
  /* First make a frame containing just a root window, no minibuffer.  */
Jim Blandy's avatar
Jim Blandy committed
500

Jim Blandy's avatar
Jim Blandy committed
501
  register struct frame *f = make_frame (0);
Jim Blandy's avatar
Jim Blandy committed
502
  register Lisp_Object mini_window;
Jim Blandy's avatar
Jim Blandy committed
503
  register Lisp_Object frame;
Jim Blandy's avatar
Jim Blandy committed
504

505
  XSETFRAME (frame, f);
Jim Blandy's avatar
Jim Blandy committed
506

507
  f->auto_raise = 0;
Jim Blandy's avatar
Jim Blandy committed
508 509 510
  f->auto_lower = 0;
  f->no_split = 1;
  f->wants_modeline = 0;
Jim Blandy's avatar
Jim Blandy committed
511 512 513 514 515

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

516 517
  mini_window = f->root_window;
  fset_minibuffer_window (f, mini_window);
518
  XWINDOW (mini_window)->mini = 1;
Paul Eggert's avatar
Paul Eggert committed
519 520 521
  wset_next (XWINDOW (mini_window), Qnil);
  wset_prev (XWINDOW (mini_window), Qnil);
  wset_frame (XWINDOW (mini_window), frame);
Jim Blandy's avatar
Jim Blandy committed
522 523 524

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

525 526 527 528 529 530
  /* Use set_window_buffer instead of Fset_window_buffer (see
     discussion of bug#11984, bug#12025, bug#12026).  */
  set_window_buffer (mini_window,
		     (NILP (Vminibuffer_list)
		      ? get_minibuffer (0)
		      : Fcar (Vminibuffer_list)), 0, 0);
Jim Blandy's avatar
Jim Blandy committed
531
  return f;
Jim Blandy's avatar
Jim Blandy committed
532
}
533
#endif /* HAVE_WINDOW_SYSTEM */
Jim Blandy's avatar
Jim Blandy committed
534

535
/* Construct a frame that refers to a terminal.  */
Jim Blandy's avatar
Jim Blandy committed
536

537
static printmax_t tty_frame_count;
538

Jim Blandy's avatar
Jim Blandy committed
539
struct frame *
540
make_initial_frame (void)
Jim Blandy's avatar
Jim Blandy committed
541
{
542
  struct frame *f;
543
  struct terminal *terminal;
544
  Lisp_Object frame;
545

546
  eassert (initial_kboard);
547

548 549 550
  /* The first call must initialize Vframe_list.  */
  if (! (NILP (Vframe_list) || CONSP (Vframe_list)))
    Vframe_list = Qnil;
Jim Blandy's avatar
Jim Blandy committed
551

552
  terminal = init_initial_terminal ();
553 554 555 556 557 558

  f = make_frame (1);
  XSETFRAME (frame, f);

  Vframe_list = Fcons (frame, Vframe_list);

559
  tty_frame_count = 1;
560
  fset_name (f, build_pure_c_string ("F1"));
561

562
  SET_FRAME_VISIBLE (f, 1);
563

564 565 566
  f->output_method = terminal->type;
  f->terminal = terminal;
  f->terminal->reference_count++;
567
  f->output_data.nothing = 0;
568

569 570
  FRAME_FOREGROUND_PIXEL (f) = FACE_TTY_DEFAULT_FG_COLOR;
  FRAME_BACKGROUND_PIXEL (f) = FACE_TTY_DEFAULT_BG_COLOR;
571

572 573 574
#ifdef HAVE_WINDOW_SYSTEM
  f->vertical_scroll_bar_type = vertical_scroll_bar_none;
#endif
575 576 577

  /* The default value of menu-bar-mode is t.  */
  set_menu_bar_lines (f, make_number (1), Qnil);
578

579 580 581
  if (!noninteractive)
    init_frame_faces (f);

582 583
  last_nonminibuf_frame = f;

584 585 586 587
  return f;
}


588
static struct frame *
589
make_terminal_frame (struct terminal *terminal)
590 591 592
{
  register struct frame *f;
  Lisp_Object frame;
593
  char name[sizeof "F" + INT_STRLEN_BOUND (printmax_t)];
594

595 596
  if (!terminal->name)
    error ("Terminal is not live, can't create new frames on it");
597

Jim Blandy's avatar
Jim Blandy committed
598
  f = make_frame (1);
599

600
  XSETFRAME (frame, f);
601 602
  Vframe_list = Fcons (frame, Vframe_list);

603
  fset_name (f, make_formatted_string (name, "F%"pMd, ++tty_frame_count));
604

605 606
  SET_FRAME_VISIBLE (f, 1);

607 608
  f->terminal = terminal;
  f->terminal->reference_count++;
609
#ifdef MSDOS
610
  f->output_data.tty->display_info = &the_only_display_info;
611 612 613
  if (!inhibit_window_system
      && (!FRAMEP (selected_frame) || !FRAME_LIVE_P (XFRAME (selected_frame))
	  || XFRAME (selected_frame)->output_method == output_msdos_raw))
614
    f->output_method = output_msdos_raw;
615 616
  else
    f->output_method = output_termcap;
617 618 619 620 621 622
#else /* not MSDOS */
  f->output_method = output_termcap;
  create_tty_output (f);
  FRAME_FOREGROUND_PIXEL (f) = FACE_TTY_DEFAULT_FG_COLOR;
  FRAME_BACKGROUND_PIXEL (f) = FACE_TTY_DEFAULT_BG_COLOR;
#endif /* not MSDOS */
623

624 625 626 627
#ifdef HAVE_WINDOW_SYSTEM  
  f->vertical_scroll_bar_type = vertical_scroll_bar_none;
#endif  

628 629
  FRAME_MENU_BAR_LINES (f) = NILP (Vmenu_bar_mode) ? 0 : 1;
  FRAME_MENU_BAR_HEIGHT (f) = FRAME_MENU_BAR_LINES (f) * FRAME_LINE_HEIGHT (f);
630

631
  /* Set the top frame to the newly created frame.  */
632 633
  if (FRAMEP (FRAME_TTY (f)->top_frame)
      && FRAME_LIVE_P (XFRAME (FRAME_TTY (f)->top_frame)))
634
    SET_FRAME_VISIBLE (XFRAME (FRAME_TTY (f)->top_frame), 2); /* obscured */
635 636 637

  FRAME_TTY (f)->top_frame = frame;

638 639
  if (!noninteractive)
    init_frame_faces (f);
640

Jim Blandy's avatar
Jim Blandy committed
641
  return f;
Jim Blandy's avatar
Jim Blandy committed
642
}
643

644 645
/* Get a suitable value for frame parameter PARAMETER for a newly
   created frame, based on (1) the user-supplied frame parameter
646
   alist SUPPLIED_PARMS, and (2) CURRENT_VALUE.  */
647 648 649 650 651 652 653 654 655 656

static Lisp_Object
get_future_frame_param (Lisp_Object parameter,
                        Lisp_Object supplied_parms,
                        char *current_value)
{
  Lisp_Object result;

  result = Fassq (parameter, supplied_parms);
  if (NILP (result))
657
    result = Fassq (parameter, XFRAME (selected_frame)->param_alist);
658 659 660 661 662 663 664 665 666 667
  if (NILP (result) && current_value != NULL)
    result = build_string (current_value);
  if (!NILP (result) && !STRINGP (result))
    result = XCDR (result);
  if (NILP (result) || !STRINGP (result))
    result = Qnil;

  return result;
}

668
DEFUN ("make-terminal-frame", Fmake_terminal_frame, Smake_terminal_frame,
669
       1, 1, 0,
670
       doc: /* Create an additional terminal frame, possibly on another terminal.
671
This function takes one argument, an alist specifying frame parameters.
672

673 674
You can create multiple frames on a single text terminal, but only one
of them (the selected terminal frame) is actually displayed.
675 676 677 678 679 680 681 682

In practice, generally you don't need to specify any parameters,
except when you want to create a new frame on another terminal.
In that case, the `tty' parameter specifies the device file to open,
and the `tty-type' parameter specifies the terminal type.  Example:

   (make-terminal-frame '((tty . "/dev/pts/5") (tty-type . "xterm")))

683 684
Note that changing the size of one terminal frame automatically
affects all frames on the same terminal device.  */)
Dan Nicolaescu's avatar
Dan Nicolaescu committed
685
  (Lisp_Object parms)
686 687
{
  struct frame *f;
688
  struct terminal *t = NULL;
689
  Lisp_Object frame, tem;
690
  struct frame *sf = SELECTED_FRAME ();
691

692
#ifdef MSDOS
693 694
  if (sf->output_method != output_msdos_raw
      && sf->output_method != output_termcap)
695
    emacs_abort ();
696 697
#else /* not MSDOS */

698
#ifdef WINDOWSNT                           /* This should work now! */
699
  if (sf->output_method != output_termcap)
700
    error ("Not using an ASCII terminal now; cannot make a new ASCII frame");
701
#endif
702
#endif /* not MSDOS */
703

704
  {
705
    Lisp_Object terminal;
706

707
    terminal = Fassq (Qterminal, parms);
708
    if (CONSP (terminal))
709
      {
710 711
        terminal = XCDR (terminal);
        t = get_terminal (terminal, 1);
712
      }
713 714 715 716 717 718 719
#ifdef MSDOS
    if (t && t != the_only_display_info.terminal)
      /* msdos.c assumes a single tty_display_info object.  */
      error ("Multiple terminals are not supported on this platform");
    if (!t)
      t = the_only_display_info.terminal;
#endif
720
  }
721

722
  if (!t)
723
    {
724
      char *name = 0, *type = 0;
725
      Lisp_Object tty, tty_type;
726

727 728 729 730 731
      tty = get_future_frame_param
        (Qtty, parms, (FRAME_TERMCAP_P (XFRAME (selected_frame))
                       ? FRAME_TTY (XFRAME (selected_frame))->name
                       : NULL));
      if (!NILP (tty))
732
	name = xlispstrdupa (tty);
733

734 735 736 737 738
      tty_type = get_future_frame_param
        (Qtty_type, parms, (FRAME_TERMCAP_P (XFRAME (selected_frame))
                            ? FRAME_TTY (XFRAME (selected_frame))->type
                            : NULL));
      if (!NILP (tty_type))
739
	type = xlispstrdupa (tty_type);
740

741
      t = init_tty (name, type, 0); /* Errors are not fatal.  */
742
    }
743

744
  f = make_terminal_frame (t);
745

746 747
  {
    int width, height;
748
    get_tty_size (fileno (FRAME_TTY (f)->input), &width, &height);
749
    change_frame_size (f, width, height, 0, 0, 0, 0);
750
  }
751

752
  adjust_frame_glyphs (f);
753 754
  calculate_costs (f);
  XSETFRAME (frame, f);
755 756

  store_in_alist (&parms, Qtty_type, build_string (t->display_info.tty->type));
Paul Eggert's avatar
Paul Eggert committed
757
  store_in_alist (&parms, Qtty,
758 759 760
		  (t->display_info.tty->name
		   ? build_string (t->display_info.tty->name)
		   : Qnil));
761
  Fmodify_frame_parameters (frame, parms);
762

763 764
  /* Make the frame face alist be frame-specific, so that each
     frame could change its face definitions independently.  */
765
  fset_face_alist (f, Fcopy_alist (sf->face_alist));
766 767 768
  /* 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.  */
769
  for (tem = f->face_alist; CONSP (tem); tem = XCDR (tem))
770
    XSETCDR (XCAR (tem), Fcopy_sequence (XCDR (XCAR (tem))));
771 772
  return frame;
}
773

Jim Blandy's avatar
Jim Blandy committed
774

775 776 777 778 779 780 781 782 783 784
/* Perform the switch to frame FRAME.

   If FRAME is a switch-frame event `(switch-frame FRAME1)', use
   FRAME1 as frame.

   If TRACK is non-zero and the frame that currently has the focus
   redirects its focus to the selected frame, redirect that focused
   frame's focus to FRAME instead.

   FOR_DELETION non-zero means that the selected frame is being
785
   deleted, which includes the possibility that the frame's terminal
786 787 788
   is dead.

   The value of NORECORD is passed as argument to Fselect_window.  */
789

790
Lisp_Object
791
do_switch_frame (Lisp_Object frame, int track, int for_deletion, Lisp_Object norecord)
Jim Blandy's avatar
Jim Blandy committed
792
{
793
  struct frame *sf = SELECTED_FRAME ();
794

795 796 797
  /* If FRAME is a switch-frame event, extract the frame we should
     switch to.  */
  if (CONSP (frame)
798 799 800
      && EQ (XCAR (frame), Qswitch_frame)
      && CONSP (XCDR (frame)))
    frame = XCAR (XCDR (frame));
801

802 803 804
  /* 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.  */
805
  CHECK_FRAME (frame);
806 807
  if (! FRAME_LIVE_P (XFRAME (frame)))
    return Qnil;
Jim Blandy's avatar
Jim Blandy committed
808

809
  if (sf == XFRAME (frame))
Jim Blandy's avatar
Jim Blandy committed
810
    return frame;
Jim Blandy's avatar
Jim Blandy committed
811

812 813 814 815 816 817 818
  /* 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.  */
819 820 821
#if 0
  /* This is too greedy; it causes inappropriate focus redirection
     that's hard to get rid of.  */
822 823 824
  if (track)
    {
      Lisp_Object tail;
825

826
      for (tail = Vframe_list; CONSP (tail); tail = XCDR (tail))
827 828
	{
	  Lisp_Object focus;
829

830
	  if (!FRAMEP (XCAR (tail)))
831
	    emacs_abort ();
832

833
	  focus = FRAME_FOCUS_FRAME (XFRAME (XCAR (tail)));
834

835
	  if (FRAMEP (focus) && XFRAME (focus) == SELECTED_FRAME ())
836
	    Fredirect_frame_focus (XCAR (tail), frame);
837 838 839 840
	}
    }
#else /* ! 0 */
  /* Instead, apply it only to the frame we're pointing to.  */
841
#ifdef HAVE_WINDOW_SYSTEM
842
  if (track && FRAME_WINDOW_P (XFRAME (frame)))
843 844 845
    {
      Lisp_Object focus, xfocus;

846
      xfocus = x_get_focus_frame (XFRAME (frame));