frame.c 143 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
Morten Welinder's avatar
Morten Welinder committed
49 50
#ifdef MSDOS
#include "msdos.h"
51
#include "dosfns.h"
Morten Welinder's avatar
Morten Welinder committed
52
#endif
Jim Blandy's avatar
Jim Blandy committed
53

Chong Yidong's avatar
Chong Yidong committed
54 55 56 57
#ifdef HAVE_NS
Lisp_Object Qns_parse_geometry;
#endif

Kim F. Storm's avatar
Kim F. Storm committed
58 59
Lisp_Object Qframep, Qframe_live_p;
Lisp_Object Qicon, Qmodeline;
60
Lisp_Object Qonly, Qnone;
61
Lisp_Object Qx, Qw32, Qpc, Qns;
62
Lisp_Object Qvisible;
63
Lisp_Object Qdisplay_type;
64
static Lisp_Object Qbackground_mode;
65
Lisp_Object Qnoelisp;
Kim F. Storm's avatar
Kim F. Storm committed
66

67
static Lisp_Object Qx_frame_parameter;
Kim F. Storm's avatar
Kim F. Storm committed
68
Lisp_Object Qx_resource_name;
69
Lisp_Object Qterminal;
Kim F. Storm's avatar
Kim F. Storm committed
70 71 72 73 74 75 76 77 78

/* 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 Qleft, Qright;
Lisp_Object Qicon_left, Qicon_top, Qicon_type, Qicon_name;
79
Lisp_Object Qtooltip;
Kim F. Storm's avatar
Kim F. Storm committed
80
Lisp_Object Qinternal_border_width;
81
Lisp_Object Qright_divider_width, Qbottom_divider_width;
Kim F. Storm's avatar
Kim F. Storm committed
82 83 84 85 86 87 88
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;
89
static Lisp_Object Quser_position, Quser_size;
Kim F. Storm's avatar
Kim F. Storm committed
90
Lisp_Object Qwait_for_wm;
91
static Lisp_Object Qwindow_id;
Kim F. Storm's avatar
Kim F. Storm committed
92
#ifdef HAVE_X_WINDOWS
93
static Lisp_Object Qouter_window_id;
Kim F. Storm's avatar
Kim F. Storm committed
94 95 96
#endif
Lisp_Object Qparent_id;
Lisp_Object Qtitle, Qname;
97
static Lisp_Object Qexplicit_name;
Kim F. Storm's avatar
Kim F. Storm committed
98
Lisp_Object Qunsplittable;
99
Lisp_Object Qmenu_bar_lines, Qtool_bar_lines, Qtool_bar_position;
Kim F. Storm's avatar
Kim F. Storm committed
100
Lisp_Object Qleft_fringe, Qright_fringe;
101 102
Lisp_Object Qbuffer_predicate;
static Lisp_Object Qbuffer_list, Qburied_buffer_list;
103
Lisp_Object Qtty_color_mode;
104
Lisp_Object Qtty, Qtty_type;
Jim Blandy's avatar
Jim Blandy committed
105

106
Lisp_Object Qfullscreen, Qfullwidth, Qfullheight, Qfullboth, Qmaximized;
107
Lisp_Object Qsticky;
Kenichi Handa's avatar
Kenichi Handa committed
108
Lisp_Object Qfont_backend;
109
Lisp_Object Qalpha;
Kim F. Storm's avatar
Kim F. Storm committed
110 111 112

Lisp_Object Qface_set_after_frame_default;

113 114
static Lisp_Object Qfocus_in_hook;
static Lisp_Object Qfocus_out_hook;
115
static Lisp_Object Qdelete_frame_functions;
116

117
static Lisp_Object Qgeometry, Qworkarea, Qmm_size, Qframes, Qsource;
118

119 120 121 122 123 124 125 126 127 128 129 130 131
/* 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;

/* Nonzero means there is at least one garbaged frame.  */

bool frame_garbaged;

132 133 134 135
#ifdef HAVE_WINDOW_SYSTEM
static void x_report_frame_params (struct frame *, Lisp_Object *);
#endif

136
/* These setters are used only in this file, so they can be private.  */
137
static void
138 139 140 141
fset_buffer_predicate (struct frame *f, Lisp_Object val)
{
  f->buffer_predicate = val;
}
142
static void
143 144 145 146 147
fset_minibuffer_window (struct frame *f, Lisp_Object val)
{
  f->minibuffer_window = val;
}

148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165
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);
}

166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182
bool
window_system_available (struct frame *f)
{
  if (f)
    return FRAME_WINDOW_P (f) || FRAME_MSDOS_P (f);
  else
#ifdef HAVE_WINDOW_SYSTEM
    return x_display_list != NULL;
#else
    return 0;
#endif
}

struct frame *
decode_window_system_frame (Lisp_Object frame)
{
  struct frame *f = decode_live_frame (frame);
183

184 185 186 187 188 189 190 191 192 193 194 195 196
  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");
}

197
static void
198
set_menu_bar_lines_1 (Lisp_Object window, int n)
199 200
{
  struct window *w = XWINDOW (window);
201
  struct frame *f = XFRAME (WINDOW_FRAME (w));
202

203
  w->top_line += n;
204
  w->pixel_top += n * FRAME_LINE_HEIGHT (f);
205
  w->total_lines -= n;
206
  w->pixel_height -= n * FRAME_LINE_HEIGHT (f);
207

208
  /* Handle just the top child in a vertical split.  */
209 210 211 212 213 214 215 216 217
  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);
      }
218 219
}

220
void
221
set_menu_bar_lines (struct frame *f, Lisp_Object value, Lisp_Object oldval)
222 223 224 225 226 227
{
  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
228
     frame itself, and get an error because you can't switch buffers
229 230 231 232
     in or split the minibuffer window.  */
  if (FRAME_MINIBUF_ONLY_P (f))
    return;

233
  if (TYPE_RANGED_INTEGERP (int, value))
234 235 236 237
    nlines = XINT (value);
  else
    nlines = 0;

238 239
  if (nlines != olines)
    {
240
      windows_or_buffers_changed = 14;
241 242
      FRAME_WINDOW_SIZES_CHANGED (f) = 1;
      FRAME_MENU_BAR_LINES (f) = nlines;
243
      FRAME_MENU_BAR_HEIGHT (f) = nlines * FRAME_LINE_HEIGHT (f);
244
      set_menu_bar_lines_1 (f->root_window, nlines - olines);
245
      adjust_frame_glyphs (f);
246
    }
247 248 249 250
}

Lisp_Object Vframe_list;

Jim Blandy's avatar
Jim Blandy committed
251

Jim Blandy's avatar
Jim Blandy committed
252
DEFUN ("framep", Fframep, Sframep, 1, 1, 0,
253
       doc: /* Return non-nil if OBJECT is a frame.
254 255 256 257 258 259
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.
260
See also `frame-live-p'.  */)
Dan Nicolaescu's avatar
Dan Nicolaescu committed
261
  (Lisp_Object object)
Jim Blandy's avatar
Jim Blandy committed
262
{
263
  if (!FRAMEP (object))
Jim Blandy's avatar
Jim Blandy committed
264
    return Qnil;
Jim Blandy's avatar
Jim Blandy committed
265
  switch (XFRAME (object)->output_method)
Jim Blandy's avatar
Jim Blandy committed
266
    {
267
    case output_initial: /* The initial frame is like a termcap frame. */
Jim Blandy's avatar
Jim Blandy committed
268 269 270
    case output_termcap:
      return Qt;
    case output_x_window:
271
      return Qx;
272 273
    case output_w32:
      return Qw32;
274 275
    case output_msdos_raw:
      return Qpc;
276 277
    case output_ns:
      return Qns;
Jim Blandy's avatar
Jim Blandy committed
278
    default:
279
      emacs_abort ();
Jim Blandy's avatar
Jim Blandy committed
280 281 282
    }
}

Jim Blandy's avatar
Jim Blandy committed
283
DEFUN ("frame-live-p", Fframe_live_p, Sframe_live_p, 1, 1, 0,
284 285
       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
286
frame, the return value indicates what sort of terminal device it is
Pavel Janík's avatar
Pavel Janík committed
287
displayed on.  See the documentation of `framep' for possible
Pavel Janík's avatar
Pavel Janík committed
288
return values.  */)
Dan Nicolaescu's avatar
Dan Nicolaescu committed
289
  (Lisp_Object object)
Jim Blandy's avatar
Jim Blandy committed
290
{
Jim Blandy's avatar
Jim Blandy committed
291 292 293
  return ((FRAMEP (object)
	   && FRAME_LIVE_P (XFRAME (object)))
	  ? Fframep (object)
Jim Blandy's avatar
Jim Blandy committed
294 295 296
	  : Qnil);
}

Paul Eggert's avatar
Paul Eggert committed
297
DEFUN ("window-system", Fwindow_system, Swindow_system, 0, 1, 0,
298
       doc: /* The name of the window system that FRAME is displaying through.
299 300 301 302 303 304 305 306 307 308 309 310
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
311
  (Lisp_Object frame)
312 313 314 315 316 317 318 319 320 321 322 323 324 325
{
  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;
326
}
327

Jim Blandy's avatar
Jim Blandy committed
328
struct frame *
329
make_frame (bool mini_p)
Jim Blandy's avatar
Jim Blandy committed
330
{
Jim Blandy's avatar
Jim Blandy committed
331 332
  Lisp_Object frame;
  register struct frame *f;
333
  register struct window *rw, *mw;
Jim Blandy's avatar
Jim Blandy committed
334 335
  register Lisp_Object root_window;
  register Lisp_Object mini_window;
336 337

  f = allocate_frame ();
338
  XSETFRAME (frame, f);
Jim Blandy's avatar
Jim Blandy committed
339

340 341
  /* Initialize Lisp data.  Note that allocate_frame initializes all
     Lisp data to nil, so do it only for slots which should not be nil.  */
342
  fset_tool_bar_position (f, Qtop);
343 344 345 346 347

  /* 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.  */
348 349 350
  f->wants_modeline = true;
  f->redisplay = true;
  f->garbaged = true;
351
  f->vertical_scroll_bar_type = vertical_scroll_bar_none;
352 353
  f->column_width = 1;  /* !FRAME_WINDOW_P value.  */
  f->line_height = 1;  /* !FRAME_WINDOW_P value.  */
354
#ifdef HAVE_WINDOW_SYSTEM
355
  f->want_fullscreen = FULLSCREEN_NONE;
356
#endif
Jim Blandy's avatar
Jim Blandy committed
357

358
  root_window = make_window ();
359
  rw = XWINDOW (root_window);
Jim Blandy's avatar
Jim Blandy committed
360 361
  if (mini_p)
    {
362
      mini_window = make_window ();
363 364 365 366 367
      mw = XWINDOW (mini_window);
      wset_next (rw, mini_window);
      wset_prev (mw, root_window);
      mw->mini = 1;
      wset_frame (mw, frame);
368
      fset_minibuffer_window (f, mini_window);
Jim Blandy's avatar
Jim Blandy committed
369 370 371 372
    }
  else
    {
      mini_window = Qnil;
373
      wset_next (rw, Qnil);
374
      fset_minibuffer_window (f, Qnil);
Jim Blandy's avatar
Jim Blandy committed
375 376
    }

377
  wset_frame (rw, frame);
Jim Blandy's avatar
Jim Blandy committed
378 379 380

  /* 10 is arbitrary,
     just so that there is "something there."
Jim Blandy's avatar
Jim Blandy committed
381
     Correct size will be set up later with change_frame_size.  */
Jim Blandy's avatar
Jim Blandy committed
382

383 384
  SET_FRAME_COLS (f, 10);
  FRAME_LINES (f) = 10;
385 386
  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
387

388 389 390 391
  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
392 393 394

  if (mini_p)
    {
395 396 397 398 399 400
      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
401 402
    }

Jim Blandy's avatar
Jim Blandy committed
403
  /* Choose a buffer for the frame's root window.  */
Jim Blandy's avatar
Jim Blandy committed
404
  {
405
    Lisp_Object buf = Fcurrent_buffer ();
Jim Blandy's avatar
Jim Blandy committed
406

407 408
    /* If current buffer is hidden, try to find another one.  */
    if (BUFFER_HIDDEN_P (XBUFFER (buf)))
409
      buf = other_buffer_safely (buf);
410

411 412
    /* 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
413
       arrangement is not yet fully initialized at this point.  Windows
414 415 416
       don't have the right size, glyph matrices aren't initialized
       etc.  Running Lisp functions at this point surely ends in a
       SEGV.  */
417
    set_window_buffer (root_window, buf, 0, 0);
418
    fset_buffer_list (f, list1 (buf));
Jim Blandy's avatar
Jim Blandy committed
419 420
  }

Jim Blandy's avatar
Jim Blandy committed
421
  if (mini_p)
422 423 424 425 426
    set_window_buffer (mini_window,
		       (NILP (Vminibuffer_list)
			? get_minibuffer (0)
			: Fcar (Vminibuffer_list)),
		       0, 0);
Jim Blandy's avatar
Jim Blandy committed
427

428 429
  fset_root_window (f, root_window);
  fset_selected_window (f, root_window);
Jim Blandy's avatar
Jim Blandy committed
430 431
  /* Make sure this window seems more recently used than
     a newly-created, never-selected window.  */
432
  XWINDOW (f->selected_window)->use_time = ++window_select_count;
Jim Blandy's avatar
Jim Blandy committed
433

Jim Blandy's avatar
Jim Blandy committed
434
  return f;
Jim Blandy's avatar
Jim Blandy committed
435 436
}

437
#ifdef HAVE_WINDOW_SYSTEM
Jim Blandy's avatar
Jim Blandy committed
438
/* Make a frame using a separate minibuffer window on another frame.
Jim Blandy's avatar
Jim Blandy committed
439 440 441
   MINI_WINDOW is the minibuffer window to use.  nil means use the
   default (the global minibuffer).  */

Jim Blandy's avatar
Jim Blandy committed
442
struct frame *
443
make_frame_without_minibuffer (register Lisp_Object mini_window, KBOARD *kb, Lisp_Object display)
Jim Blandy's avatar
Jim Blandy committed
444
{
Jim Blandy's avatar
Jim Blandy committed
445
  register struct frame *f;
446
  struct gcpro gcpro1;
Jim Blandy's avatar
Jim Blandy committed
447

448
  if (!NILP (mini_window))
449
    CHECK_LIVE_WINDOW (mini_window);
Jim Blandy's avatar
Jim Blandy committed
450

451
  if (!NILP (mini_window)
452
      && FRAME_KBOARD (XFRAME (XWINDOW (mini_window)->frame)) != kb)
453
    error ("Frame and minibuffer must be on the same terminal");
454

Jim Blandy's avatar
Jim Blandy committed
455 456
  /* Make a frame containing just a root window.  */
  f = make_frame (0);
Jim Blandy's avatar
Jim Blandy committed
457

458 459 460
  if (NILP (mini_window))
    {
      /* Use default-minibuffer-frame if possible.  */
461 462
      if (!FRAMEP (KVAR (kb, Vdefault_minibuffer_frame))
	  || ! FRAME_LIVE_P (XFRAME (KVAR (kb, Vdefault_minibuffer_frame))))
463
	{
464 465 466 467
          Lisp_Object frame_dummy;

          XSETFRAME (frame_dummy, f);
          GCPRO1 (frame_dummy);
468
	  /* If there's no minibuffer frame to use, create one.  */
Paul Eggert's avatar
Paul Eggert committed
469 470
	  kset_default_minibuffer_frame
	    (kb, call1 (intern ("make-initial-minibuffer-frame"), display));
471
          UNGCPRO;
472
	}
473

474 475
      mini_window
	= XFRAME (KVAR (kb, Vdefault_minibuffer_frame))->minibuffer_window;
476
    }
477

478
  fset_minibuffer_window (f, mini_window);
479 480 481

  /* Make the chosen minibuffer window display the proper minibuffer,
     unless it is already showing a minibuffer.  */
482
  if (NILP (Fmemq (XWINDOW (mini_window)->contents, Vminibuffer_list)))
483 484 485 486 487 488
    /* 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
489
  return f;
Jim Blandy's avatar
Jim Blandy committed
490 491
}

Jim Blandy's avatar
Jim Blandy committed
492
/* Make a frame containing only a minibuffer window.  */
Jim Blandy's avatar
Jim Blandy committed
493

Jim Blandy's avatar
Jim Blandy committed
494
struct frame *
495
make_minibuffer_frame (void)
Jim Blandy's avatar
Jim Blandy committed
496
{
Jim Blandy's avatar
Jim Blandy committed
497
  /* First make a frame containing just a root window, no minibuffer.  */
Jim Blandy's avatar
Jim Blandy committed
498

Jim Blandy's avatar
Jim Blandy committed
499
  register struct frame *f = make_frame (0);
Jim Blandy's avatar
Jim Blandy committed
500
  register Lisp_Object mini_window;
Jim Blandy's avatar
Jim Blandy committed
501
  register Lisp_Object frame;
Jim Blandy's avatar
Jim Blandy committed
502

503
  XSETFRAME (frame, f);
Jim Blandy's avatar
Jim Blandy committed
504

505
  f->auto_raise = 0;
Jim Blandy's avatar
Jim Blandy committed
506 507 508
  f->auto_lower = 0;
  f->no_split = 1;
  f->wants_modeline = 0;
Jim Blandy's avatar
Jim Blandy committed
509 510 511 512 513

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

514 515
  mini_window = f->root_window;
  fset_minibuffer_window (f, mini_window);
516
  XWINDOW (mini_window)->mini = 1;
Paul Eggert's avatar
Paul Eggert committed
517 518 519
  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
520 521 522

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

523 524 525 526 527 528
  /* 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
529
  return f;
Jim Blandy's avatar
Jim Blandy committed
530
}
531
#endif /* HAVE_WINDOW_SYSTEM */
Jim Blandy's avatar
Jim Blandy committed
532

533
/* Construct a frame that refers to a terminal.  */
Jim Blandy's avatar
Jim Blandy committed
534

535
static printmax_t tty_frame_count;
536

Jim Blandy's avatar
Jim Blandy committed
537
struct frame *
538
make_initial_frame (void)
Jim Blandy's avatar
Jim Blandy committed
539
{
540
  struct frame *f;
541
  struct terminal *terminal;
542
  Lisp_Object frame;
543

544
  eassert (initial_kboard);
545

546 547 548
  /* The first call must initialize Vframe_list.  */
  if (! (NILP (Vframe_list) || CONSP (Vframe_list)))
    Vframe_list = Qnil;
Jim Blandy's avatar
Jim Blandy committed
549

550
  terminal = init_initial_terminal ();
551 552 553 554 555 556

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

  Vframe_list = Fcons (frame, Vframe_list);

557
  tty_frame_count = 1;
558
  fset_name (f, build_pure_c_string ("F1"));
559

560
  SET_FRAME_VISIBLE (f, 1);
561

562 563 564
  f->output_method = terminal->type;
  f->terminal = terminal;
  f->terminal->reference_count++;
565
  f->output_data.nothing = 0;
566

567 568
  FRAME_FOREGROUND_PIXEL (f) = FACE_TTY_DEFAULT_FG_COLOR;
  FRAME_BACKGROUND_PIXEL (f) = FACE_TTY_DEFAULT_BG_COLOR;
569

570
  FRAME_VERTICAL_SCROLL_BAR_TYPE (f) = vertical_scroll_bar_none;
571 572 573

  /* The default value of menu-bar-mode is t.  */
  set_menu_bar_lines (f, make_number (1), Qnil);
574

575 576 577
  if (!noninteractive)
    init_frame_faces (f);

578 579
  last_nonminibuf_frame = f;

580 581 582 583
  return f;
}


584
static struct frame *
585
make_terminal_frame (struct terminal *terminal)
586 587 588
{
  register struct frame *f;
  Lisp_Object frame;
589
  char name[sizeof "F" + INT_STRLEN_BOUND (printmax_t)];
590

591 592
  if (!terminal->name)
    error ("Terminal is not live, can't create new frames on it");
593

Jim Blandy's avatar
Jim Blandy committed
594
  f = make_frame (1);
595

596
  XSETFRAME (frame, f);
597 598
  Vframe_list = Fcons (frame, Vframe_list);

599
  fset_name (f, make_formatted_string (name, "F%"pMd, ++tty_frame_count));
600

601 602
  SET_FRAME_VISIBLE (f, 1);

603 604
  f->terminal = terminal;
  f->terminal->reference_count++;
605
#ifdef MSDOS
606
  f->output_data.tty->display_info = &the_only_display_info;
607 608 609
  if (!inhibit_window_system
      && (!FRAMEP (selected_frame) || !FRAME_LIVE_P (XFRAME (selected_frame))
	  || XFRAME (selected_frame)->output_method == output_msdos_raw))
610
    f->output_method = output_msdos_raw;
611 612
  else
    f->output_method = output_termcap;
613 614 615 616 617 618
#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 */
619

620
  FRAME_VERTICAL_SCROLL_BAR_TYPE (f) = vertical_scroll_bar_none;
621 622
  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);
623 624 625 626

  /* Set the top frame to the newly created frame. */
  if (FRAMEP (FRAME_TTY (f)->top_frame)
      && FRAME_LIVE_P (XFRAME (FRAME_TTY (f)->top_frame)))
627
    SET_FRAME_VISIBLE (XFRAME (FRAME_TTY (f)->top_frame), 2); /* obscured */
628 629 630

  FRAME_TTY (f)->top_frame = frame;

631 632
  if (!noninteractive)
    init_frame_faces (f);
633

Jim Blandy's avatar
Jim Blandy committed
634
  return f;
Jim Blandy's avatar
Jim Blandy committed
635
}
636

637 638
/* Get a suitable value for frame parameter PARAMETER for a newly
   created frame, based on (1) the user-supplied frame parameter
639
   alist SUPPLIED_PARMS, and (2) CURRENT_VALUE.  */
640 641 642 643 644 645 646 647 648 649

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))
650
    result = Fassq (parameter, XFRAME (selected_frame)->param_alist);
651 652 653 654 655 656 657 658 659 660
  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;
}

661
DEFUN ("make-terminal-frame", Fmake_terminal_frame, Smake_terminal_frame,
662
       1, 1, 0,
663
       doc: /* Create an additional terminal frame, possibly on another terminal.
664
This function takes one argument, an alist specifying frame parameters.
665

666 667
You can create multiple frames on a single text terminal, but only one
of them (the selected terminal frame) is actually displayed.
668 669 670 671 672 673 674 675

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")))

676 677
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
678
  (Lisp_Object parms)
679 680
{
  struct frame *f;
681
  struct terminal *t = NULL;
682
  Lisp_Object frame, tem;
683
  struct frame *sf = SELECTED_FRAME ();
684

685
#ifdef MSDOS
686 687
  if (sf->output_method != output_msdos_raw
      && sf->output_method != output_termcap)
688
    emacs_abort ();
689 690
#else /* not MSDOS */

691
#ifdef WINDOWSNT                           /* This should work now! */
692
  if (sf->output_method != output_termcap)
693
    error ("Not using an ASCII terminal now; cannot make a new ASCII frame");
694
#endif
695
#endif /* not MSDOS */
696

697
  {
698
    Lisp_Object terminal;
699

700
    terminal = Fassq (Qterminal, parms);
701
    if (CONSP (terminal))
702
      {
703 704
        terminal = XCDR (terminal);
        t = get_terminal (terminal, 1);
705
      }
706 707 708 709 710 711 712
#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
713
  }
714

715
  if (!t)
716
    {
717
      char *name = 0, *type = 0;
718
      Lisp_Object tty, tty_type;
719

720 721 722 723 724
      tty = get_future_frame_param
        (Qtty, parms, (FRAME_TERMCAP_P (XFRAME (selected_frame))
                       ? FRAME_TTY (XFRAME (selected_frame))->name
                       : NULL));
      if (!NILP (tty))
725
	name = xlispstrdupa (tty);
726

727 728 729 730 731
      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))
732
	type = xlispstrdupa (tty_type);
733

734
      t = init_tty (name, type, 0); /* Errors are not fatal.  */
735
    }
736

737
  f = make_terminal_frame (t);
738

739 740
  {
    int width, height;
741
    get_tty_size (fileno (FRAME_TTY (f)->input), &width, &height);
742
    change_frame_size (f, width, height, 0, 0, 0, 0);
743
  }
744

745
  adjust_frame_glyphs (f);
746 747
  calculate_costs (f);
  XSETFRAME (frame, f);
748 749

  store_in_alist (&parms, Qtty_type, build_string (t->display_info.tty->type));
Paul Eggert's avatar
Paul Eggert committed
750
  store_in_alist (&parms, Qtty,
751 752 753
		  (t->display_info.tty->name
		   ? build_string (t->display_info.tty->name)
		   : Qnil));
754
  Fmodify_frame_parameters (frame, parms);
755

756 757
  /* Make the frame face alist be frame-specific, so that each
     frame could change its face definitions independently.  */
758
  fset_face_alist (f, Fcopy_alist (sf->face_alist));
759 760 761
  /* 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.  */
762
  for (tem = f->face_alist; CONSP (tem); tem = XCDR (tem))
763
    XSETCDR (XCAR (tem), Fcopy_sequence (XCDR (XCAR (tem))));
764 765
  return frame;
}
766

Jim Blandy's avatar
Jim Blandy committed
767

768 769 770 771 772 773 774 775 776 777
/* 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
778
   deleted, which includes the possibility that the frame's terminal
779 780 781
   is dead.

   The value of NORECORD is passed as argument to Fselect_window.  */
782

783
Lisp_Object
784
do_switch_frame (Lisp_Object frame, int track, int for_deletion, Lisp_Object norecord)
Jim Blandy's avatar
Jim Blandy committed
785
{
786
  struct frame *sf = SELECTED_FRAME ();
787

788 789 790
  /* If FRAME is a switch-frame event, extract the frame we should
     switch to.  */
  if (CONSP (frame)
791 792 793
      && EQ (XCAR (frame), Qswitch_frame)
      && CONSP (XCDR (frame)))
    frame = XCAR (XCDR (frame));
794

795 796 797
  /* 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.  */
798
  CHECK_FRAME (frame);
799 800
  if (! FRAME_LIVE_P (XFRAME (frame)))
    return Qnil;
Jim Blandy's avatar
Jim Blandy committed
801

802
  if (sf == XFRAME (frame))
Jim Blandy's avatar
Jim Blandy committed
803
    return frame;
Jim Blandy's avatar
Jim Blandy committed
804

805 806 807 808 809 810 811
  /* 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.  */
812 813 814
#if 0
  /* This is too greedy; it causes inappropriate focus redirection
     that's hard to get rid of.  */
815 816 817
  if (track)
    {
      Lisp_Object tail;
818

819
      for (tail = Vframe_list; CONSP (tail); tail = XCDR (tail))
820 821
	{
	  Lisp_Object focus;
822

823
	  if (!FRAMEP (XCAR (tail)))
824
	    emacs_abort ();
825

826
	  focus = FRAME_FOCUS_FRAME (XFRAME (XCAR (tail)));
827

828
	  if (FRAMEP (focus) && XFRAME (focus) == SELECTED_FRAME ())
829
	    Fredirect_frame_focus (XCAR (tail), frame);
830 831 832 833
	}
    }
#else /* ! 0 */
  /* Instead, apply it only to the frame we're pointing to.  */
834
#ifdef HAVE_WINDOW_SYSTEM
835
  if (track && FRAME_WINDOW_P (XFRAME (frame)))
836 837 838
    {
      Lisp_Object focus, xfocus;

839
      xfocus = x_get_focus_frame (XFRAME (frame));
840 841 842
      if (FRAMEP (xfocus))
	{
	  focus = FRAME_FOCUS_FRAME (XFRAME (xfocus));
843
	  if (FRAMEP (focus) && XFRAME (focus) == SELECTED_FRAME ())
844 845 846 847 848
	    Fredirect_frame_focus (xfocus, frame);
	}
    }
#endif /* HAVE_X_WINDOWS */
#endif /* ! 0 */
849

850
  if (!for_deletion && FRAME_HAS_MINIBUF_P (sf))
851 852
    resize_mini_window (XWINDOW (FRAME_MINIBUF_WINDOW (sf)), 1);

853
  if (FRAME_TERMCAP_P (XFRAME (frame)) || FRAME_MSDOS_P (XFRAME (frame)))
854
    {