frame.c 130 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 23
#define FRAME_INLINE EXTERN_INLINE

24
#include <stdio.h>
25 26
#include <errno.h>
#include <limits.h>
27 28 29

#include <c-ctype.h>

30
#include "lisp.h"
31
#include "character.h"
32 33 34 35 36

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

37 38 39 40
#include "buffer.h"
/* These help us bind and responding to switch-frame events.  */
#include "commands.h"
#include "keyboard.h"
41
#include "frame.h"
Kim F. Storm's avatar
Kim F. Storm committed
42
#include "blockinput.h"
43
#include "termchar.h"
44
#include "termhooks.h"
Andreas Schwab's avatar
Andreas Schwab committed
45
#include "dispextern.h"
46
#include "window.h"
47
#include "font.h"
Andreas Schwab's avatar
Andreas Schwab committed
48
#ifdef HAVE_WINDOW_SYSTEM
49 50
#include "fontset.h"
#endif
Morten Welinder's avatar
Morten Welinder committed
51 52
#ifdef MSDOS
#include "msdos.h"
53
#include "dosfns.h"
Morten Welinder's avatar
Morten Welinder committed
54
#endif
Jim Blandy's avatar
Jim Blandy committed
55

Chong Yidong's avatar
Chong Yidong committed
56 57 58 59
#ifdef HAVE_NS
Lisp_Object Qns_parse_geometry;
#endif

Kim F. Storm's avatar
Kim F. Storm committed
60 61
Lisp_Object Qframep, Qframe_live_p;
Lisp_Object Qicon, Qmodeline;
62
Lisp_Object Qonly, Qnone;
63
Lisp_Object Qx, Qw32, Qpc, Qns;
64
Lisp_Object Qvisible;
65
Lisp_Object Qdisplay_type;
66
static Lisp_Object Qbackground_mode;
67
Lisp_Object Qnoelisp;
Kim F. Storm's avatar
Kim F. Storm committed
68

69
static Lisp_Object Qx_frame_parameter;
Kim F. Storm's avatar
Kim F. Storm committed
70
Lisp_Object Qx_resource_name;
71 72
Lisp_Object Qterminal;
Lisp_Object Qterminal_live_p;
Kim F. Storm's avatar
Kim F. Storm committed
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;
79
static Lisp_Object Qgeometry;  /* Not used */
Kim F. Storm's avatar
Kim F. Storm committed
80 81 82
Lisp_Object Qheight, Qwidth;
Lisp_Object Qleft, Qright;
Lisp_Object Qicon_left, Qicon_top, Qicon_type, Qicon_name;
83
Lisp_Object Qtooltip;
Kim F. Storm's avatar
Kim F. Storm committed
84 85 86 87 88 89 90 91
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;
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
static Lisp_Object Qdelete_frame_functions;
117

118 119 120 121
#ifdef HAVE_WINDOW_SYSTEM
static void x_report_frame_params (struct frame *, Lisp_Object *);
#endif

122
/* These setters are used only in this file, so they can be private.  */
123
static void
124 125 126 127
fset_buffer_predicate (struct frame *f, Lisp_Object val)
{
  f->buffer_predicate = val;
}
128
static void
129 130 131 132 133
fset_minibuffer_window (struct frame *f, Lisp_Object val)
{
  f->minibuffer_window = val;
}

134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151
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);
}

152
static void
153
set_menu_bar_lines_1 (Lisp_Object window, int n)
154 155 156
{
  struct window *w = XWINDOW (window);

157
  w->last_modified = 0;
Paul Eggert's avatar
Paul Eggert committed
158 159
  wset_top_line (w, make_number (XFASTINT (w->top_line) + n));
  wset_total_lines (w, make_number (XFASTINT (w->total_lines) - n));
160

161
  /* Handle just the top child in a vertical split.  */
162 163
  if (!NILP (w->vchild))
    set_menu_bar_lines_1 (w->vchild, n);
164 165

  /* Adjust all children in a horizontal split.  */
166
  for (window = w->hchild; !NILP (window); window = w->next)
167 168 169 170 171 172
    {
      w = XWINDOW (window);
      set_menu_bar_lines_1 (window, n);
    }
}

173
void
174
set_menu_bar_lines (struct frame *f, Lisp_Object value, Lisp_Object oldval)
175 176 177 178 179 180
{
  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
181
     frame itself, and get an error because you can't switch buffers
182 183 184 185
     in or split the minibuffer window.  */
  if (FRAME_MINIBUF_ONLY_P (f))
    return;

186
  if (TYPE_RANGED_INTEGERP (int, value))
187 188 189 190
    nlines = XINT (value);
  else
    nlines = 0;

191 192 193 194 195
  if (nlines != olines)
    {
      windows_or_buffers_changed++;
      FRAME_WINDOW_SIZES_CHANGED (f) = 1;
      FRAME_MENU_BAR_LINES (f) = nlines;
196
      set_menu_bar_lines_1 (f->root_window, nlines - olines);
197
      adjust_glyphs (f);
198
    }
199 200 201 202
}

Lisp_Object Vframe_list;

Jim Blandy's avatar
Jim Blandy committed
203

Jim Blandy's avatar
Jim Blandy committed
204
DEFUN ("framep", Fframep, Sframep, 1, 1, 0,
205
       doc: /* Return non-nil if OBJECT is a frame.
206 207 208 209 210 211
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.
212
See also `frame-live-p'.  */)
Dan Nicolaescu's avatar
Dan Nicolaescu committed
213
  (Lisp_Object object)
Jim Blandy's avatar
Jim Blandy committed
214
{
215
  if (!FRAMEP (object))
Jim Blandy's avatar
Jim Blandy committed
216
    return Qnil;
Jim Blandy's avatar
Jim Blandy committed
217
  switch (XFRAME (object)->output_method)
Jim Blandy's avatar
Jim Blandy committed
218
    {
219
    case output_initial: /* The initial frame is like a termcap frame. */
Jim Blandy's avatar
Jim Blandy committed
220 221 222
    case output_termcap:
      return Qt;
    case output_x_window:
223
      return Qx;
224 225
    case output_w32:
      return Qw32;
226 227
    case output_msdos_raw:
      return Qpc;
228 229
    case output_ns:
      return Qns;
Jim Blandy's avatar
Jim Blandy committed
230
    default:
231
      emacs_abort ();
Jim Blandy's avatar
Jim Blandy committed
232 233 234
    }
}

Jim Blandy's avatar
Jim Blandy committed
235
DEFUN ("frame-live-p", Fframe_live_p, Sframe_live_p, 1, 1, 0,
236 237
       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
238
frame, the return value indicates what sort of terminal device it is
Pavel Janík's avatar
Pavel Janík committed
239
displayed on.  See the documentation of `framep' for possible
Pavel Janík's avatar
Pavel Janík committed
240
return values.  */)
Dan Nicolaescu's avatar
Dan Nicolaescu committed
241
  (Lisp_Object object)
Jim Blandy's avatar
Jim Blandy committed
242
{
Jim Blandy's avatar
Jim Blandy committed
243 244 245
  return ((FRAMEP (object)
	   && FRAME_LIVE_P (XFRAME (object)))
	  ? Fframep (object)
Jim Blandy's avatar
Jim Blandy committed
246 247 248
	  : Qnil);
}

Paul Eggert's avatar
Paul Eggert committed
249
DEFUN ("window-system", Fwindow_system, Swindow_system, 0, 1, 0,
250
       doc: /* The name of the window system that FRAME is displaying through.
251 252 253 254 255 256 257 258 259 260 261 262
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
263
  (Lisp_Object frame)
264 265 266 267 268 269 270 271 272 273 274 275 276 277
{
  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;
278
}
279

Jim Blandy's avatar
Jim Blandy committed
280
struct frame *
281
make_frame (int mini_p)
Jim Blandy's avatar
Jim Blandy committed
282
{
Jim Blandy's avatar
Jim Blandy committed
283 284
  Lisp_Object frame;
  register struct frame *f;
Jim Blandy's avatar
Jim Blandy committed
285 286
  register Lisp_Object root_window;
  register Lisp_Object mini_window;
287 288

  f = allocate_frame ();
289
  XSETFRAME (frame, f);
Jim Blandy's avatar
Jim Blandy committed
290

291 292
  /* Initialize Lisp data.  Note that allocate_frame initializes all
     Lisp data to nil, so do it only for slots which should not be nil.  */
293
  fset_tool_bar_position (f, Qtop);
294 295 296 297 298

  /* 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
299
  f->wants_modeline = 1;
300
  f->garbaged = 1;
Jim Blandy's avatar
Jim Blandy committed
301
  f->has_minibuffer = mini_p;
302
  f->vertical_scroll_bar_type = vertical_scroll_bar_none;
303 304
  f->column_width = 1;  /* !FRAME_WINDOW_P value */
  f->line_height = 1;  /* !FRAME_WINDOW_P value */
305
#ifdef HAVE_WINDOW_SYSTEM
306
  f->want_fullscreen = FULLSCREEN_NONE;
307
#endif
Jim Blandy's avatar
Jim Blandy committed
308

309
  root_window = make_window ();
Jim Blandy's avatar
Jim Blandy committed
310 311
  if (mini_p)
    {
312
      mini_window = make_window ();
Paul Eggert's avatar
Paul Eggert committed
313 314
      wset_next (XWINDOW (root_window), mini_window);
      wset_prev (XWINDOW (mini_window), root_window);
315
      XWINDOW (mini_window)->mini = 1;
Paul Eggert's avatar
Paul Eggert committed
316
      wset_frame (XWINDOW (mini_window), frame);
317
      fset_minibuffer_window (f, mini_window);
Jim Blandy's avatar
Jim Blandy committed
318 319 320 321
    }
  else
    {
      mini_window = Qnil;
Paul Eggert's avatar
Paul Eggert committed
322
      wset_next (XWINDOW (root_window), Qnil);
323
      fset_minibuffer_window (f, Qnil);
Jim Blandy's avatar
Jim Blandy committed
324 325
    }

Paul Eggert's avatar
Paul Eggert committed
326
  wset_frame (XWINDOW (root_window), frame);
Jim Blandy's avatar
Jim Blandy committed
327 328 329

  /* 10 is arbitrary,
     just so that there is "something there."
Jim Blandy's avatar
Jim Blandy committed
330
     Correct size will be set up later with change_frame_size.  */
Jim Blandy's avatar
Jim Blandy committed
331

332 333
  SET_FRAME_COLS (f, 10);
  FRAME_LINES (f) = 10;
Jim Blandy's avatar
Jim Blandy committed
334

Paul Eggert's avatar
Paul Eggert committed
335 336
  wset_total_cols (XWINDOW (root_window), make_number (10));
  wset_total_lines (XWINDOW (root_window), make_number (mini_p ? 9 : 10));
Jim Blandy's avatar
Jim Blandy committed
337 338 339

  if (mini_p)
    {
Paul Eggert's avatar
Paul Eggert committed
340 341 342
      wset_total_cols (XWINDOW (mini_window), make_number (10));
      wset_top_line (XWINDOW (mini_window), make_number (9));
      wset_total_lines (XWINDOW (mini_window), make_number (1));
Jim Blandy's avatar
Jim Blandy committed
343 344
    }

Jim Blandy's avatar
Jim Blandy committed
345
  /* Choose a buffer for the frame's root window.  */
Jim Blandy's avatar
Jim Blandy committed
346
  {
347
    Lisp_Object buf = Fcurrent_buffer ();
Jim Blandy's avatar
Jim Blandy committed
348

349 350
    /* If current buffer is hidden, try to find another one.  */
    if (BUFFER_HIDDEN_P (XBUFFER (buf)))
351
      buf = other_buffer_safely (buf);
352

353 354
    /* 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
355
       arrangement is not yet fully initialized at this point.  Windows
356 357 358
       don't have the right size, glyph matrices aren't initialized
       etc.  Running Lisp functions at this point surely ends in a
       SEGV.  */
359
    set_window_buffer (root_window, buf, 0, 0);
360
    fset_buffer_list (f, Fcons (buf, Qnil));
Jim Blandy's avatar
Jim Blandy committed
361 362
  }

Jim Blandy's avatar
Jim Blandy committed
363
  if (mini_p)
364 365 366 367 368
    set_window_buffer (mini_window,
		       (NILP (Vminibuffer_list)
			? get_minibuffer (0)
			: Fcar (Vminibuffer_list)),
		       0, 0);
Jim Blandy's avatar
Jim Blandy committed
369

370 371
  fset_root_window (f, root_window);
  fset_selected_window (f, root_window);
Jim Blandy's avatar
Jim Blandy committed
372 373
  /* Make sure this window seems more recently used than
     a newly-created, never-selected window.  */
374
  XWINDOW (f->selected_window)->use_time = ++window_select_count;
Jim Blandy's avatar
Jim Blandy committed
375

Jim Blandy's avatar
Jim Blandy committed
376
  return f;
Jim Blandy's avatar
Jim Blandy committed
377 378
}

379
#ifdef HAVE_WINDOW_SYSTEM
Jim Blandy's avatar
Jim Blandy committed
380
/* Make a frame using a separate minibuffer window on another frame.
Jim Blandy's avatar
Jim Blandy committed
381 382 383
   MINI_WINDOW is the minibuffer window to use.  nil means use the
   default (the global minibuffer).  */

Jim Blandy's avatar
Jim Blandy committed
384
struct frame *
385
make_frame_without_minibuffer (register Lisp_Object mini_window, KBOARD *kb, Lisp_Object display)
Jim Blandy's avatar
Jim Blandy committed
386
{
Jim Blandy's avatar
Jim Blandy committed
387
  register struct frame *f;
388
  struct gcpro gcpro1;
Jim Blandy's avatar
Jim Blandy committed
389

390
  if (!NILP (mini_window))
391
    CHECK_LIVE_WINDOW (mini_window);
Jim Blandy's avatar
Jim Blandy committed
392

393
  if (!NILP (mini_window)
394
      && FRAME_KBOARD (XFRAME (XWINDOW (mini_window)->frame)) != kb)
395
    error ("Frame and minibuffer must be on the same terminal");
396

Jim Blandy's avatar
Jim Blandy committed
397 398
  /* Make a frame containing just a root window.  */
  f = make_frame (0);
Jim Blandy's avatar
Jim Blandy committed
399

400 401 402
  if (NILP (mini_window))
    {
      /* Use default-minibuffer-frame if possible.  */
403 404
      if (!FRAMEP (KVAR (kb, Vdefault_minibuffer_frame))
	  || ! FRAME_LIVE_P (XFRAME (KVAR (kb, Vdefault_minibuffer_frame))))
405
	{
406 407 408 409
          Lisp_Object frame_dummy;

          XSETFRAME (frame_dummy, f);
          GCPRO1 (frame_dummy);
410
	  /* If there's no minibuffer frame to use, create one.  */
Paul Eggert's avatar
Paul Eggert committed
411 412
	  kset_default_minibuffer_frame
	    (kb, call1 (intern ("make-initial-minibuffer-frame"), display));
413
          UNGCPRO;
414
	}
415

416 417
      mini_window
	= XFRAME (KVAR (kb, Vdefault_minibuffer_frame))->minibuffer_window;
418
    }
419

420
  fset_minibuffer_window (f, mini_window);
421 422 423

  /* Make the chosen minibuffer window display the proper minibuffer,
     unless it is already showing a minibuffer.  */
424
  if (NILP (Fmemq (XWINDOW (mini_window)->buffer, Vminibuffer_list)))
425 426 427 428 429 430
    /* 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
431
  return f;
Jim Blandy's avatar
Jim Blandy committed
432 433
}

Jim Blandy's avatar
Jim Blandy committed
434
/* Make a frame containing only a minibuffer window.  */
Jim Blandy's avatar
Jim Blandy committed
435

Jim Blandy's avatar
Jim Blandy committed
436
struct frame *
437
make_minibuffer_frame (void)
Jim Blandy's avatar
Jim Blandy committed
438
{
Jim Blandy's avatar
Jim Blandy committed
439
  /* First make a frame containing just a root window, no minibuffer.  */
Jim Blandy's avatar
Jim Blandy committed
440

Jim Blandy's avatar
Jim Blandy committed
441
  register struct frame *f = make_frame (0);
Jim Blandy's avatar
Jim Blandy committed
442
  register Lisp_Object mini_window;
Jim Blandy's avatar
Jim Blandy committed
443
  register Lisp_Object frame;
Jim Blandy's avatar
Jim Blandy committed
444

445
  XSETFRAME (frame, f);
Jim Blandy's avatar
Jim Blandy committed
446

447
  f->auto_raise = 0;
Jim Blandy's avatar
Jim Blandy committed
448 449 450 451
  f->auto_lower = 0;
  f->no_split = 1;
  f->wants_modeline = 0;
  f->has_minibuffer = 1;
Jim Blandy's avatar
Jim Blandy committed
452 453 454 455 456

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

457 458
  mini_window = f->root_window;
  fset_minibuffer_window (f, mini_window);
459
  XWINDOW (mini_window)->mini = 1;
Paul Eggert's avatar
Paul Eggert committed
460 461 462
  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
463 464 465

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

466 467 468 469 470 471
  /* 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
472
  return f;
Jim Blandy's avatar
Jim Blandy committed
473
}
474
#endif /* HAVE_WINDOW_SYSTEM */
Jim Blandy's avatar
Jim Blandy committed
475

476
/* Construct a frame that refers to a terminal.  */
Jim Blandy's avatar
Jim Blandy committed
477

478
static printmax_t tty_frame_count;
479

Jim Blandy's avatar
Jim Blandy committed
480
struct frame *
481
make_initial_frame (void)
Jim Blandy's avatar
Jim Blandy committed
482
{
483
  struct frame *f;
484
  struct terminal *terminal;
485
  Lisp_Object frame;
486

487
  eassert (initial_kboard);
488

489 490 491
  /* The first call must initialize Vframe_list.  */
  if (! (NILP (Vframe_list) || CONSP (Vframe_list)))
    Vframe_list = Qnil;
Jim Blandy's avatar
Jim Blandy committed
492

493
  terminal = init_initial_terminal ();
494 495 496 497 498 499

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

  Vframe_list = Fcons (frame, Vframe_list);

500
  tty_frame_count = 1;
501
  fset_name (f, build_pure_c_string ("F1"));
502 503 504 505

  f->visible = 1;
  f->async_visible = 1;

506 507 508
  f->output_method = terminal->type;
  f->terminal = terminal;
  f->terminal->reference_count++;
509
  f->output_data.nothing = 0;
510

511 512
  FRAME_FOREGROUND_PIXEL (f) = FACE_TTY_DEFAULT_FG_COLOR;
  FRAME_BACKGROUND_PIXEL (f) = FACE_TTY_DEFAULT_BG_COLOR;
513

514
  FRAME_VERTICAL_SCROLL_BAR_TYPE (f) = vertical_scroll_bar_none;
515 516 517

  /* The default value of menu-bar-mode is t.  */
  set_menu_bar_lines (f, make_number (1), Qnil);
518

519 520 521
  if (!noninteractive)
    init_frame_faces (f);

522 523 524 525
  return f;
}


526
static struct frame *
527
make_terminal_frame (struct terminal *terminal)
528 529 530
{
  register struct frame *f;
  Lisp_Object frame;
531
  char name[sizeof "F" + INT_STRLEN_BOUND (printmax_t)];
532

533 534
  if (!terminal->name)
    error ("Terminal is not live, can't create new frames on it");
535

Jim Blandy's avatar
Jim Blandy committed
536
  f = make_frame (1);
537

538
  XSETFRAME (frame, f);
539 540
  Vframe_list = Fcons (frame, Vframe_list);

541
  fset_name (f, make_formatted_string (name, "F%"pMd, ++tty_frame_count));
542 543 544

  f->visible = 1;		/* FRAME_SET_VISIBLE wd set frame_garbaged. */
  f->async_visible = 1;		/* Don't let visible be cleared later. */
545 546
  f->terminal = terminal;
  f->terminal->reference_count++;
547
#ifdef MSDOS
548
  f->output_data.tty->display_info = &the_only_display_info;
549 550 551
  if (!inhibit_window_system
      && (!FRAMEP (selected_frame) || !FRAME_LIVE_P (XFRAME (selected_frame))
	  || XFRAME (selected_frame)->output_method == output_msdos_raw))
552
    f->output_method = output_msdos_raw;
553 554
  else
    f->output_method = output_termcap;
555 556 557 558 559 560
#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 */
561

562
  FRAME_VERTICAL_SCROLL_BAR_TYPE (f) = vertical_scroll_bar_none;
563
  FRAME_MENU_BAR_LINES(f) = NILP (Vmenu_bar_mode) ? 0 : 1;
564 565 566 567 568 569 570 571

  /* 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)))
    XFRAME (FRAME_TTY (f)->top_frame)->async_visible = 2; /* obscured */

  FRAME_TTY (f)->top_frame = frame;

572 573
  if (!noninteractive)
    init_frame_faces (f);
574

Jim Blandy's avatar
Jim Blandy committed
575
  return f;
Jim Blandy's avatar
Jim Blandy committed
576
}
577

578 579
/* Get a suitable value for frame parameter PARAMETER for a newly
   created frame, based on (1) the user-supplied frame parameter
580
   alist SUPPLIED_PARMS, and (2) CURRENT_VALUE.  */
581 582 583 584 585 586 587 588 589 590

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))
591
    result = Fassq (parameter, XFRAME (selected_frame)->param_alist);
592 593 594 595 596 597 598 599 600 601
  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;
}

602
DEFUN ("make-terminal-frame", Fmake_terminal_frame, Smake_terminal_frame,
603
       1, 1, 0,
604
       doc: /* Create an additional terminal frame, possibly on another terminal.
605
This function takes one argument, an alist specifying frame parameters.
606

607 608
You can create multiple frames on a single text terminal, but only one
of them (the selected terminal frame) is actually displayed.
609 610 611 612 613 614 615 616

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")))

617 618
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
619
  (Lisp_Object parms)
620 621
{
  struct frame *f;
622
  struct terminal *t = NULL;
623
  Lisp_Object frame, tem;
624
  struct frame *sf = SELECTED_FRAME ();
625

626
#ifdef MSDOS
627 628
  if (sf->output_method != output_msdos_raw
      && sf->output_method != output_termcap)
629
    emacs_abort ();
630 631
#else /* not MSDOS */

632
#ifdef WINDOWSNT                           /* This should work now! */
633
  if (sf->output_method != output_termcap)
634
    error ("Not using an ASCII terminal now; cannot make a new ASCII frame");
635
#endif
636
#endif /* not MSDOS */
637

638
  {
639
    Lisp_Object terminal;
640

641
    terminal = Fassq (Qterminal, parms);
642
    if (CONSP (terminal))
643
      {
644 645
        terminal = XCDR (terminal);
        t = get_terminal (terminal, 1);
646
      }
647 648 649 650 651 652 653
#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
654
  }
655

656
  if (!t)
657
    {
658
      char *name = 0, *type = 0;
659
      Lisp_Object tty, tty_type;
660

661 662 663 664 665
      tty = get_future_frame_param
        (Qtty, parms, (FRAME_TERMCAP_P (XFRAME (selected_frame))
                       ? FRAME_TTY (XFRAME (selected_frame))->name
                       : NULL));
      if (!NILP (tty))
666
        {
667
          name = alloca (SBYTES (tty) + 1);
668
          memcpy (name, SSDATA (tty), SBYTES (tty));
669 670
          name[SBYTES (tty)] = 0;
        }
671

672 673 674 675 676
      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))
677
        {
678
          type = alloca (SBYTES (tty_type) + 1);
679
          memcpy (type, SSDATA (tty_type), SBYTES (tty_type));
680 681 682
          type[SBYTES (tty_type)] = 0;
        }

683
      t = init_tty (name, type, 0); /* Errors are not fatal. */
684
    }
685

686
  f = make_terminal_frame (t);
687

688 689
  {
    int width, height;
690
    get_tty_size (fileno (FRAME_TTY (f)->input), &width, &height);
691 692
    change_frame_size (f, height, width, 0, 0, 0);
  }
693

694
  adjust_glyphs (f);
695 696 697
  calculate_costs (f);
  XSETFRAME (frame, f);
  Fmodify_frame_parameters (frame, parms);
698
  Fmodify_frame_parameters (frame, Fcons (Fcons (Qtty_type,
699
                                                 build_string (t->display_info.tty->type)),
700
                                          Qnil));
701 702 703 704 705 706
  if (t->display_info.tty->name != NULL)
    Fmodify_frame_parameters (frame, Fcons (Fcons (Qtty,
                                                   build_string (t->display_info.tty->name)),
                                            Qnil));
  else
    Fmodify_frame_parameters (frame, Fcons (Fcons (Qtty, Qnil), Qnil));
707

708 709
  /* Make the frame face alist be frame-specific, so that each
     frame could change its face definitions independently.  */
710
  fset_face_alist (f, Fcopy_alist (sf->face_alist));
711 712 713
  /* 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.  */
714
  for (tem = f->face_alist; CONSP (tem); tem = XCDR (tem))
715
    XSETCDR (XCAR (tem), Fcopy_sequence (XCDR (XCAR (tem))));
716 717
  return frame;
}
718

Jim Blandy's avatar
Jim Blandy committed
719

720 721 722 723 724 725 726 727 728 729
/* 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
730
   deleted, which includes the possibility that the frame's terminal
731 732 733
   is dead.

   The value of NORECORD is passed as argument to Fselect_window.  */
734

735
Lisp_Object
736
do_switch_frame (Lisp_Object frame, int track, int for_deletion, Lisp_Object norecord)
Jim Blandy's avatar
Jim Blandy committed
737
{
738
  struct frame *sf = SELECTED_FRAME ();
739

740 741 742
  /* If FRAME is a switch-frame event, extract the frame we should
     switch to.  */
  if (CONSP (frame)
743 744 745
      && EQ (XCAR (frame), Qswitch_frame)
      && CONSP (XCDR (frame)))
    frame = XCAR (XCDR (frame));
746

747 748 749
  /* 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.  */
750
  CHECK_FRAME (frame);
751 752
  if (! FRAME_LIVE_P (XFRAME (frame)))
    return Qnil;
Jim Blandy's avatar
Jim Blandy committed
753

754
  if (sf == XFRAME (frame))
Jim Blandy's avatar
Jim Blandy committed
755
    return frame;
Jim Blandy's avatar
Jim Blandy committed
756

757 758 759
  /* This is too greedy; it causes inappropriate focus redirection
     that's hard to get rid of.  */
#if 0
760 761 762 763 764 765 766
  /* 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.  */
767 768 769
  if (track)
    {
      Lisp_Object tail;
770

771
      for (tail = Vframe_list; CONSP (tail); tail = XCDR (tail))
772 773
	{
	  Lisp_Object focus;
774

775
	  if (!FRAMEP (XCAR (tail)))
776
	    emacs_abort ();
777

778
	  focus = FRAME_FOCUS_FRAME (XFRAME (XCAR (tail)));
779

780
	  if (FRAMEP (focus) && XFRAME (focus) == SELECTED_FRAME ())
781
	    Fredirect_frame_focus (XCAR (tail), frame);
782 783 784 785
	}
    }
#else /* ! 0 */
  /* Instead, apply it only to the frame we're pointing to.  */
786
#ifdef HAVE_WINDOW_SYSTEM
787
  if (track && FRAME_WINDOW_P (XFRAME (frame)))
788 789 790
    {
      Lisp_Object focus, xfocus;

791
      xfocus = x_get_focus_frame (XFRAME (frame));
792 793 794
      if (FRAMEP (xfocus))
	{
	  focus = FRAME_FOCUS_FRAME (XFRAME (xfocus));
795
	  if (FRAMEP (focus) && XFRAME (focus) == SELECTED_FRAME ())
796 797 798 799 800
	    Fredirect_frame_focus (xfocus, frame);
	}
    }
#endif /* HAVE_X_WINDOWS */
#endif /* ! 0 */
801

802
  if (!for_deletion && FRAME_HAS_MINIBUF_P (sf))
803 804
    resize_mini_window (XWINDOW (FRAME_MINIBUF_WINDOW (sf)), 1);

805
  if (FRAME_TERMCAP_P (XFRAME (frame)) || FRAME_MSDOS_P (XFRAME (frame)))
806
    {
807 808 809
      if (FRAMEP (FRAME_TTY (XFRAME (frame))->top_frame))
	/* Mark previously displayed frame as now obscured.  */
	XFRAME (FRAME_TTY (XFRAME (frame))->top_frame)->async_visible = 2;
810 811 812 813
      XFRAME (frame)->async_visible = 1;
      FRAME_TTY (XFRAME (frame))->top_frame = frame;
    }

814 815 816
  selected_frame = frame;
  if (! FRAME_MINIBUF_ONLY_P (XFRAME (selected_frame)))
    last_nonminibuf_frame = XFRAME (selected_frame);
Jim Blandy's avatar
Jim Blandy committed
817

818
  Fselect_window (XFRAME (frame)->selected_window, norecord);
Jim Blandy's avatar
Jim Blandy committed
819

820
  /* We want to make sure that the next event generates a frame-switch
821
     event to the appropriate frame.  This seems kludgy to me, but
822 823 824 825
     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.  */
826
  internal_last_event_frame = Qnil;
827

Jim Blandy's avatar
Jim Blandy committed
828
  return frame;
Jim Blandy's avatar
Jim Blandy committed
829 830
}

Paul Eggert's avatar
Paul Eggert committed
831
DEFUN ("select-frame", Fselect_frame, Sselect_frame, 1, 2, "e",
832
       doc: /* Select FRAME.
833
Subsequent editing commands apply to its selected window.