frame.c 136 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, 1999-2013 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 81 82 83 84 85 86 87
Lisp_Object Qinternal_border_width;
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;
88
static Lisp_Object Quser_position, Quser_size;
Kim F. Storm's avatar
Kim F. Storm committed
89
Lisp_Object Qwait_for_wm;
90
static Lisp_Object Qwindow_id;
Kim F. Storm's avatar
Kim F. Storm committed
91
#ifdef HAVE_X_WINDOWS
92
static Lisp_Object Qouter_window_id;
Kim F. Storm's avatar
Kim F. Storm committed
93 94 95
#endif
Lisp_Object Qparent_id;
Lisp_Object Qtitle, Qname;
96
static Lisp_Object Qexplicit_name;
Kim F. Storm's avatar
Kim F. Storm committed
97
Lisp_Object Qunsplittable;
98
Lisp_Object Qmenu_bar_lines, Qtool_bar_lines, Qtool_bar_position;
Kim F. Storm's avatar
Kim F. Storm committed
99
Lisp_Object Qleft_fringe, Qright_fringe;
100 101
Lisp_Object Qbuffer_predicate;
static Lisp_Object Qbuffer_list, Qburied_buffer_list;
102
Lisp_Object Qtty_color_mode;
103
Lisp_Object Qtty, Qtty_type;
Jim Blandy's avatar
Jim Blandy committed
104

105
Lisp_Object Qfullscreen, Qfullwidth, Qfullheight, Qfullboth, Qmaximized;
106
Lisp_Object Qsticky;
Kenichi Handa's avatar
Kenichi Handa committed
107
Lisp_Object Qfont_backend;
108
Lisp_Object Qalpha;
Kim F. Storm's avatar
Kim F. Storm committed
109 110 111

Lisp_Object Qface_set_after_frame_default;

112
static Lisp_Object Qdelete_frame_functions;
113

114
static Lisp_Object Qgeometry, Qworkarea, Qmm_size, Qframes, Qsource;
115

116 117 118 119
#ifdef HAVE_WINDOW_SYSTEM
static void x_report_frame_params (struct frame *, Lisp_Object *);
#endif

120
/* These setters are used only in this file, so they can be private.  */
121
static void
122 123 124 125
fset_buffer_predicate (struct frame *f, Lisp_Object val)
{
  f->buffer_predicate = val;
}
126
static void
127 128 129 130 131
fset_minibuffer_window (struct frame *f, Lisp_Object val)
{
  f->minibuffer_window = val;
}

132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149
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);
}

150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166
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);
167

168 169 170 171 172 173 174 175 176 177 178 179 180
  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");
}

181
static void
182
set_menu_bar_lines_1 (Lisp_Object window, int n)
183 184 185
{
  struct window *w = XWINDOW (window);

186 187
  w->top_line += n;
  w->total_lines -= n;
188

189
  /* Handle just the top child in a vertical split.  */
190 191 192 193 194 195 196 197 198
  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);
      }
199 200
}

201
void
202
set_menu_bar_lines (struct frame *f, Lisp_Object value, Lisp_Object oldval)
203 204 205 206 207 208
{
  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
209
     frame itself, and get an error because you can't switch buffers
210 211 212 213
     in or split the minibuffer window.  */
  if (FRAME_MINIBUF_ONLY_P (f))
    return;

214
  if (TYPE_RANGED_INTEGERP (int, value))
215 216 217 218
    nlines = XINT (value);
  else
    nlines = 0;

219 220 221 222 223
  if (nlines != olines)
    {
      windows_or_buffers_changed++;
      FRAME_WINDOW_SIZES_CHANGED (f) = 1;
      FRAME_MENU_BAR_LINES (f) = nlines;
224
      set_menu_bar_lines_1 (f->root_window, nlines - olines);
225
      adjust_frame_glyphs (f);
226
    }
227 228 229 230
}

Lisp_Object Vframe_list;

Jim Blandy's avatar
Jim Blandy committed
231

Jim Blandy's avatar
Jim Blandy committed
232
DEFUN ("framep", Fframep, Sframep, 1, 1, 0,
233
       doc: /* Return non-nil if OBJECT is a frame.
234 235 236 237 238 239
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.
240
See also `frame-live-p'.  */)
Dan Nicolaescu's avatar
Dan Nicolaescu committed
241
  (Lisp_Object object)
Jim Blandy's avatar
Jim Blandy committed
242
{
243
  if (!FRAMEP (object))
Jim Blandy's avatar
Jim Blandy committed
244
    return Qnil;
Jim Blandy's avatar
Jim Blandy committed
245
  switch (XFRAME (object)->output_method)
Jim Blandy's avatar
Jim Blandy committed
246
    {
247
    case output_initial: /* The initial frame is like a termcap frame. */
Jim Blandy's avatar
Jim Blandy committed
248 249 250
    case output_termcap:
      return Qt;
    case output_x_window:
251
      return Qx;
252 253
    case output_w32:
      return Qw32;
254 255
    case output_msdos_raw:
      return Qpc;
256 257
    case output_ns:
      return Qns;
Jim Blandy's avatar
Jim Blandy committed
258
    default:
259
      emacs_abort ();
Jim Blandy's avatar
Jim Blandy committed
260 261 262
    }
}

Jim Blandy's avatar
Jim Blandy committed
263
DEFUN ("frame-live-p", Fframe_live_p, Sframe_live_p, 1, 1, 0,
264 265
       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
266
frame, the return value indicates what sort of terminal device it is
Pavel Janík's avatar
Pavel Janík committed
267
displayed on.  See the documentation of `framep' for possible
Pavel Janík's avatar
Pavel Janík committed
268
return values.  */)
Dan Nicolaescu's avatar
Dan Nicolaescu committed
269
  (Lisp_Object object)
Jim Blandy's avatar
Jim Blandy committed
270
{
Jim Blandy's avatar
Jim Blandy committed
271 272 273
  return ((FRAMEP (object)
	   && FRAME_LIVE_P (XFRAME (object)))
	  ? Fframep (object)
Jim Blandy's avatar
Jim Blandy committed
274 275 276
	  : Qnil);
}

Paul Eggert's avatar
Paul Eggert committed
277
DEFUN ("window-system", Fwindow_system, Swindow_system, 0, 1, 0,
278
       doc: /* The name of the window system that FRAME is displaying through.
279 280 281 282 283 284 285 286 287 288 289 290
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
291
  (Lisp_Object frame)
292 293 294 295 296 297 298 299 300 301 302 303 304 305
{
  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;
306
}
307

Jim Blandy's avatar
Jim Blandy committed
308
struct frame *
309
make_frame (bool mini_p)
Jim Blandy's avatar
Jim Blandy committed
310
{
Jim Blandy's avatar
Jim Blandy committed
311 312
  Lisp_Object frame;
  register struct frame *f;
Jim Blandy's avatar
Jim Blandy committed
313 314
  register Lisp_Object root_window;
  register Lisp_Object mini_window;
315 316

  f = allocate_frame ();
317
  XSETFRAME (frame, f);
Jim Blandy's avatar
Jim Blandy committed
318

319 320
  /* Initialize Lisp data.  Note that allocate_frame initializes all
     Lisp data to nil, so do it only for slots which should not be nil.  */
321
  fset_tool_bar_position (f, Qtop);
322 323 324 325 326

  /* 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.  */
Jim Blandy's avatar
Jim Blandy committed
327
  f->wants_modeline = 1;
328
  f->garbaged = 1;
Jim Blandy's avatar
Jim Blandy committed
329
  f->has_minibuffer = mini_p;
330
  f->vertical_scroll_bar_type = vertical_scroll_bar_none;
331 332
  f->column_width = 1;  /* !FRAME_WINDOW_P value */
  f->line_height = 1;  /* !FRAME_WINDOW_P value */
333
#ifdef HAVE_WINDOW_SYSTEM
334
  f->want_fullscreen = FULLSCREEN_NONE;
335
#endif
Jim Blandy's avatar
Jim Blandy committed
336

337
  root_window = make_window ();
Jim Blandy's avatar
Jim Blandy committed
338 339
  if (mini_p)
    {
340
      mini_window = make_window ();
Paul Eggert's avatar
Paul Eggert committed
341 342
      wset_next (XWINDOW (root_window), mini_window);
      wset_prev (XWINDOW (mini_window), root_window);
343
      XWINDOW (mini_window)->mini = 1;
Paul Eggert's avatar
Paul Eggert committed
344
      wset_frame (XWINDOW (mini_window), frame);
345
      fset_minibuffer_window (f, mini_window);
Jim Blandy's avatar
Jim Blandy committed
346 347 348 349
    }
  else
    {
      mini_window = Qnil;
Paul Eggert's avatar
Paul Eggert committed
350
      wset_next (XWINDOW (root_window), Qnil);
351
      fset_minibuffer_window (f, Qnil);
Jim Blandy's avatar
Jim Blandy committed
352 353
    }

Paul Eggert's avatar
Paul Eggert committed
354
  wset_frame (XWINDOW (root_window), frame);
Jim Blandy's avatar
Jim Blandy committed
355 356 357

  /* 10 is arbitrary,
     just so that there is "something there."
Jim Blandy's avatar
Jim Blandy committed
358
     Correct size will be set up later with change_frame_size.  */
Jim Blandy's avatar
Jim Blandy committed
359

360 361
  SET_FRAME_COLS (f, 10);
  FRAME_LINES (f) = 10;
Jim Blandy's avatar
Jim Blandy committed
362

363 364
  XWINDOW (root_window)->total_cols = 10;
  XWINDOW (root_window)->total_lines = mini_p ? 9 : 10;
Jim Blandy's avatar
Jim Blandy committed
365 366 367

  if (mini_p)
    {
368 369 370
      XWINDOW (mini_window)->total_cols = 10;
      XWINDOW (mini_window)->top_line = 9;
      XWINDOW (mini_window)->total_lines = 1;
Jim Blandy's avatar
Jim Blandy committed
371 372
    }

Jim Blandy's avatar
Jim Blandy committed
373
  /* Choose a buffer for the frame's root window.  */
Jim Blandy's avatar
Jim Blandy committed
374
  {
375
    Lisp_Object buf = Fcurrent_buffer ();
Jim Blandy's avatar
Jim Blandy committed
376

377 378
    /* If current buffer is hidden, try to find another one.  */
    if (BUFFER_HIDDEN_P (XBUFFER (buf)))
379
      buf = other_buffer_safely (buf);
380

381 382
    /* 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
383
       arrangement is not yet fully initialized at this point.  Windows
384 385 386
       don't have the right size, glyph matrices aren't initialized
       etc.  Running Lisp functions at this point surely ends in a
       SEGV.  */
387
    set_window_buffer (root_window, buf, 0, 0);
388
    fset_buffer_list (f, list1 (buf));
Jim Blandy's avatar
Jim Blandy committed
389 390
  }

Jim Blandy's avatar
Jim Blandy committed
391
  if (mini_p)
392 393 394 395 396
    set_window_buffer (mini_window,
		       (NILP (Vminibuffer_list)
			? get_minibuffer (0)
			: Fcar (Vminibuffer_list)),
		       0, 0);
Jim Blandy's avatar
Jim Blandy committed
397

398 399
  fset_root_window (f, root_window);
  fset_selected_window (f, root_window);
Jim Blandy's avatar
Jim Blandy committed
400 401
  /* Make sure this window seems more recently used than
     a newly-created, never-selected window.  */
402
  XWINDOW (f->selected_window)->use_time = ++window_select_count;
Jim Blandy's avatar
Jim Blandy committed
403

Jim Blandy's avatar
Jim Blandy committed
404
  return f;
Jim Blandy's avatar
Jim Blandy committed
405 406
}

407
#ifdef HAVE_WINDOW_SYSTEM
Jim Blandy's avatar
Jim Blandy committed
408
/* Make a frame using a separate minibuffer window on another frame.
Jim Blandy's avatar
Jim Blandy committed
409 410 411
   MINI_WINDOW is the minibuffer window to use.  nil means use the
   default (the global minibuffer).  */

Jim Blandy's avatar
Jim Blandy committed
412
struct frame *
413
make_frame_without_minibuffer (register Lisp_Object mini_window, KBOARD *kb, Lisp_Object display)
Jim Blandy's avatar
Jim Blandy committed
414
{
Jim Blandy's avatar
Jim Blandy committed
415
  register struct frame *f;
416
  struct gcpro gcpro1;
Jim Blandy's avatar
Jim Blandy committed
417

418
  if (!NILP (mini_window))
419
    CHECK_LIVE_WINDOW (mini_window);
Jim Blandy's avatar
Jim Blandy committed
420

421
  if (!NILP (mini_window)
422
      && FRAME_KBOARD (XFRAME (XWINDOW (mini_window)->frame)) != kb)
423
    error ("Frame and minibuffer must be on the same terminal");
424

Jim Blandy's avatar
Jim Blandy committed
425 426
  /* Make a frame containing just a root window.  */
  f = make_frame (0);
Jim Blandy's avatar
Jim Blandy committed
427

428 429 430
  if (NILP (mini_window))
    {
      /* Use default-minibuffer-frame if possible.  */
431 432
      if (!FRAMEP (KVAR (kb, Vdefault_minibuffer_frame))
	  || ! FRAME_LIVE_P (XFRAME (KVAR (kb, Vdefault_minibuffer_frame))))
433
	{
434 435 436 437
          Lisp_Object frame_dummy;

          XSETFRAME (frame_dummy, f);
          GCPRO1 (frame_dummy);
438
	  /* If there's no minibuffer frame to use, create one.  */
Paul Eggert's avatar
Paul Eggert committed
439 440
	  kset_default_minibuffer_frame
	    (kb, call1 (intern ("make-initial-minibuffer-frame"), display));
441
          UNGCPRO;
442
	}
443

444 445
      mini_window
	= XFRAME (KVAR (kb, Vdefault_minibuffer_frame))->minibuffer_window;
446
    }
447

448
  fset_minibuffer_window (f, mini_window);
449 450 451

  /* Make the chosen minibuffer window display the proper minibuffer,
     unless it is already showing a minibuffer.  */
452
  if (NILP (Fmemq (XWINDOW (mini_window)->contents, Vminibuffer_list)))
453 454 455 456 457 458
    /* 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
459
  return f;
Jim Blandy's avatar
Jim Blandy committed
460 461
}

Jim Blandy's avatar
Jim Blandy committed
462
/* Make a frame containing only a minibuffer window.  */
Jim Blandy's avatar
Jim Blandy committed
463

Jim Blandy's avatar
Jim Blandy committed
464
struct frame *
465
make_minibuffer_frame (void)
Jim Blandy's avatar
Jim Blandy committed
466
{
Jim Blandy's avatar
Jim Blandy committed
467
  /* First make a frame containing just a root window, no minibuffer.  */
Jim Blandy's avatar
Jim Blandy committed
468

Jim Blandy's avatar
Jim Blandy committed
469
  register struct frame *f = make_frame (0);
Jim Blandy's avatar
Jim Blandy committed
470
  register Lisp_Object mini_window;
Jim Blandy's avatar
Jim Blandy committed
471
  register Lisp_Object frame;
Jim Blandy's avatar
Jim Blandy committed
472

473
  XSETFRAME (frame, f);
Jim Blandy's avatar
Jim Blandy committed
474

475
  f->auto_raise = 0;
Jim Blandy's avatar
Jim Blandy committed
476 477 478 479
  f->auto_lower = 0;
  f->no_split = 1;
  f->wants_modeline = 0;
  f->has_minibuffer = 1;
Jim Blandy's avatar
Jim Blandy committed
480 481 482 483 484

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

485 486
  mini_window = f->root_window;
  fset_minibuffer_window (f, mini_window);
487
  XWINDOW (mini_window)->mini = 1;
Paul Eggert's avatar
Paul Eggert committed
488 489 490
  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
491 492 493

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

494 495 496 497 498 499
  /* 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
500
  return f;
Jim Blandy's avatar
Jim Blandy committed
501
}
502
#endif /* HAVE_WINDOW_SYSTEM */
Jim Blandy's avatar
Jim Blandy committed
503

504
/* Construct a frame that refers to a terminal.  */
Jim Blandy's avatar
Jim Blandy committed
505

506
static printmax_t tty_frame_count;
507

Jim Blandy's avatar
Jim Blandy committed
508
struct frame *
509
make_initial_frame (void)
Jim Blandy's avatar
Jim Blandy committed
510
{
511
  struct frame *f;
512
  struct terminal *terminal;
513
  Lisp_Object frame;
514

515
  eassert (initial_kboard);
516

517 518 519
  /* The first call must initialize Vframe_list.  */
  if (! (NILP (Vframe_list) || CONSP (Vframe_list)))
    Vframe_list = Qnil;
Jim Blandy's avatar
Jim Blandy committed
520

521
  terminal = init_initial_terminal ();
522 523 524 525 526 527

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

  Vframe_list = Fcons (frame, Vframe_list);

528
  tty_frame_count = 1;
529
  fset_name (f, build_pure_c_string ("F1"));
530

531
  SET_FRAME_VISIBLE (f, 1);
532

533 534 535
  f->output_method = terminal->type;
  f->terminal = terminal;
  f->terminal->reference_count++;
536
  f->output_data.nothing = 0;
537

538 539
  FRAME_FOREGROUND_PIXEL (f) = FACE_TTY_DEFAULT_FG_COLOR;
  FRAME_BACKGROUND_PIXEL (f) = FACE_TTY_DEFAULT_BG_COLOR;
540

541
  FRAME_VERTICAL_SCROLL_BAR_TYPE (f) = vertical_scroll_bar_none;
542 543 544

  /* The default value of menu-bar-mode is t.  */
  set_menu_bar_lines (f, make_number (1), Qnil);
545

546 547 548
  if (!noninteractive)
    init_frame_faces (f);

549 550 551 552
  return f;
}


553
static struct frame *
554
make_terminal_frame (struct terminal *terminal)
555 556 557
{
  register struct frame *f;
  Lisp_Object frame;
558
  char name[sizeof "F" + INT_STRLEN_BOUND (printmax_t)];
559

560 561
  if (!terminal->name)
    error ("Terminal is not live, can't create new frames on it");
562

Jim Blandy's avatar
Jim Blandy committed
563
  f = make_frame (1);
564

565
  XSETFRAME (frame, f);
566 567
  Vframe_list = Fcons (frame, Vframe_list);

568
  fset_name (f, make_formatted_string (name, "F%"pMd, ++tty_frame_count));
569

570 571
  SET_FRAME_VISIBLE (f, 1);

572 573
  f->terminal = terminal;
  f->terminal->reference_count++;
574
#ifdef MSDOS
575
  f->output_data.tty->display_info = &the_only_display_info;
576 577 578
  if (!inhibit_window_system
      && (!FRAMEP (selected_frame) || !FRAME_LIVE_P (XFRAME (selected_frame))
	  || XFRAME (selected_frame)->output_method == output_msdos_raw))
579
    f->output_method = output_msdos_raw;
580 581
  else
    f->output_method = output_termcap;
582 583 584 585 586 587
#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 */
588

589
  FRAME_VERTICAL_SCROLL_BAR_TYPE (f) = vertical_scroll_bar_none;
590
  FRAME_MENU_BAR_LINES(f) = NILP (Vmenu_bar_mode) ? 0 : 1;
591 592 593 594

  /* 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)))
595
    SET_FRAME_VISIBLE (XFRAME (FRAME_TTY (f)->top_frame), 2); /* obscured */
596 597 598

  FRAME_TTY (f)->top_frame = frame;

599 600
  if (!noninteractive)
    init_frame_faces (f);
601

Jim Blandy's avatar
Jim Blandy committed
602
  return f;
Jim Blandy's avatar
Jim Blandy committed
603
}
604

605 606
/* Get a suitable value for frame parameter PARAMETER for a newly
   created frame, based on (1) the user-supplied frame parameter
607
   alist SUPPLIED_PARMS, and (2) CURRENT_VALUE.  */
608 609 610 611 612 613 614 615 616 617

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))
618
    result = Fassq (parameter, XFRAME (selected_frame)->param_alist);
619 620 621 622 623 624 625 626 627 628
  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;
}

629
DEFUN ("make-terminal-frame", Fmake_terminal_frame, Smake_terminal_frame,
630
       1, 1, 0,
631
       doc: /* Create an additional terminal frame, possibly on another terminal.
632
This function takes one argument, an alist specifying frame parameters.
633

634 635
You can create multiple frames on a single text terminal, but only one
of them (the selected terminal frame) is actually displayed.
636 637 638 639 640 641 642 643

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")))

644 645
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
646
  (Lisp_Object parms)
647 648
{
  struct frame *f;
649
  struct terminal *t = NULL;
650
  Lisp_Object frame, tem;
651
  struct frame *sf = SELECTED_FRAME ();
652

653
#ifdef MSDOS
654 655
  if (sf->output_method != output_msdos_raw
      && sf->output_method != output_termcap)
656
    emacs_abort ();
657 658
#else /* not MSDOS */

659
#ifdef WINDOWSNT                           /* This should work now! */
660
  if (sf->output_method != output_termcap)
661
    error ("Not using an ASCII terminal now; cannot make a new ASCII frame");
662
#endif
663
#endif /* not MSDOS */
664

665
  {
666
    Lisp_Object terminal;
667

668
    terminal = Fassq (Qterminal, parms);
669
    if (CONSP (terminal))
670
      {
671 672
        terminal = XCDR (terminal);
        t = get_terminal (terminal, 1);
673
      }
674 675 676 677 678 679 680
#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
681
  }
682

683
  if (!t)
684
    {
685
      char *name = 0, *type = 0;
686
      Lisp_Object tty, tty_type;
687

688 689 690 691 692
      tty = get_future_frame_param
        (Qtty, parms, (FRAME_TERMCAP_P (XFRAME (selected_frame))
                       ? FRAME_TTY (XFRAME (selected_frame))->name
                       : NULL));
      if (!NILP (tty))
693
	name = xlispstrdupa (tty);
694

695 696 697 698 699
      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))
700
	type = xlispstrdupa (tty_type);
701

702
      t = init_tty (name, type, 0); /* Errors are not fatal.  */
703
    }
704

705
  f = make_terminal_frame (t);
706

707 708
  {
    int width, height;
709
    get_tty_size (fileno (FRAME_TTY (f)->input), &width, &height);
710 711
    change_frame_size (f, height, width, 0, 0, 0);
  }
712

713
  adjust_frame_glyphs (f);
714 715
  calculate_costs (f);
  XSETFRAME (frame, f);
716 717

  store_in_alist (&parms, Qtty_type, build_string (t->display_info.tty->type));
Paul Eggert's avatar
Paul Eggert committed
718
  store_in_alist (&parms, Qtty,
719 720 721
		  (t->display_info.tty->name
		   ? build_string (t->display_info.tty->name)
		   : Qnil));
722
  Fmodify_frame_parameters (frame, parms);
723

724 725
  /* Make the frame face alist be frame-specific, so that each
     frame could change its face definitions independently.  */
726
  fset_face_alist (f, Fcopy_alist (sf->face_alist));
727 728 729
  /* 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.  */
730
  for (tem = f->face_alist; CONSP (tem); tem = XCDR (tem))
731
    XSETCDR (XCAR (tem), Fcopy_sequence (XCDR (XCAR (tem))));
732 733
  return frame;
}
734

Jim Blandy's avatar
Jim Blandy committed
735

736 737 738 739 740 741 742 743 744 745
/* 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
746
   deleted, which includes the possibility that the frame's terminal
747 748 749
   is dead.

   The value of NORECORD is passed as argument to Fselect_window.  */
750

751
Lisp_Object
752
do_switch_frame (Lisp_Object frame, int track, int for_deletion, Lisp_Object norecord)
Jim Blandy's avatar
Jim Blandy committed
753
{
754
  struct frame *sf = SELECTED_FRAME ();
755

756 757 758
  /* If FRAME is a switch-frame event, extract the frame we should
     switch to.  */
  if (CONSP (frame)
759 760 761
      && EQ (XCAR (frame), Qswitch_frame)
      && CONSP (XCDR (frame)))
    frame = XCAR (XCDR (frame));
762

763 764 765
  /* 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.  */
766
  CHECK_FRAME (frame);
767 768
  if (! FRAME_LIVE_P (XFRAME (frame)))
    return Qnil;
Jim Blandy's avatar
Jim Blandy committed
769

770
  if (sf == XFRAME (frame))
Jim Blandy's avatar
Jim Blandy committed
771
    return frame;
Jim Blandy's avatar
Jim Blandy committed
772

773 774 775
  /* This is too greedy; it causes inappropriate focus redirection
     that's hard to get rid of.  */
#if 0
776 777 778 779 780 781 782
  /* 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.  */
783 784 785
  if (track)
    {
      Lisp_Object tail;
786

787
      for (tail = Vframe_list; CONSP (tail); tail = XCDR (tail))
788 789
	{
	  Lisp_Object focus;
790

791
	  if (!FRAMEP (XCAR (tail)))
792
	    emacs_abort ();
793

794
	  focus = FRAME_FOCUS_FRAME (XFRAME (XCAR (tail)));
795

796
	  if (FRAMEP (focus) && XFRAME (focus) == SELECTED_FRAME ())
797
	    Fredirect_frame_focus (XCAR (tail), frame);
798 799 800 801
	}
    }
#else /* ! 0 */
  /* Instead, apply it only to the frame we're pointing to.  */
802
#ifdef HAVE_WINDOW_SYSTEM
803
  if (track && FRAME_WINDOW_P (XFRAME (frame)))
804 805 806
    {
      Lisp_Object focus, xfocus;

807
      xfocus = x_get_focus_frame (XFRAME (frame));
808 809 810
      if (FRAMEP (xfocus))
	{
	  focus = FRAME_FOCUS_FRAME (XFRAME (xfocus));
811
	  if (FRAMEP (focus) && XFRAME (focus) == SELECTED_FRAME ())
812 813 814 815 816
	    Fredirect_frame_focus (xfocus, frame);
	}
    }
#endif /* HAVE_X_WINDOWS */
#endif /* ! 0 */
817

818
  if (!for_deletion && FRAME_HAS_MINIBUF_P (sf))
819 820
    resize_mini_window (XWINDOW (FRAME_MINIBUF_WINDOW (sf)), 1);

821
  if (FRAME_TERMCAP_P (XFRAME (frame)) || FRAME_MSDOS_P (XFRAME (frame)))
822
    {
823 824 825 826 827 828 829 830 831 832 833 834
      Lisp_Object top_frame = FRAME_TTY (XFRAME (frame))->top_frame;

      /* Don't mark the frame garbaged and/or obscured if we are
	 switching to the frame that is already the top frame of that
	 TTY.  */
      if (!EQ (frame, top_frame))
	{
	  if (FRAMEP (top_frame))
	    /* Mark previously displayed frame as now obscured.  */
	    SET_FRAME_VISIBLE (XFRAME (top_frame), 2);
	  SET_FRAME_VISIBLE (XFRAME (frame), 1);
	}
835 836 837
      FRAME_TTY (XFRAME (frame))->top_frame = frame;
    }

838 839 840
  selected_frame = frame;
  if (! FRAME_MINIBUF_ONLY_P (XFRAME (selected_frame)))
    last_nonminibuf_frame = XFRAME (selected_frame);
Jim Blandy's avatar
Jim Blandy committed
841

842
  Fselect_window (XFRAME (frame)->selected_window, norecord);
Jim Blandy's avatar
Jim Blandy committed
843

844
  /* We want to make sure that the next event generates a frame-switch
845
     event to the appropriate frame.  This seems kludgy to me, but
846 847 848 849
     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.  */
850
  internal_last_event_frame = Qnil;
851

Jim Blandy's avatar
Jim Blandy committed
852
  return frame;
Jim Blandy's avatar
Jim Blandy committed
853 854
}

Paul Eggert's avatar
Paul Eggert committed
855
DEFUN ("select-frame", Fselect_frame, Sselect_frame, 1, 2, "e",
856
       doc: /* Select FRAME.