frame.c 131 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, 1999-2012  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>
Kenichi Handa's avatar
Kenichi Handa committed
23
#include <ctype.h>
24 25
#include <errno.h>
#include <limits.h>
26
#include <setjmp.h>
27
#include "lisp.h"
28
#include "character.h"
29
#ifdef HAVE_X_WINDOWS
Andreas Schwab's avatar
Andreas Schwab committed
30
#include "xterm.h"
Karl Heuer's avatar
Karl Heuer committed
31
#endif
Andrew Innes's avatar
Andrew Innes committed
32 33 34
#ifdef WINDOWSNT
#include "w32term.h"
#endif
35 36 37
#ifdef HAVE_NS
#include "nsterm.h"
#endif
38 39 40 41
#include "buffer.h"
/* These help us bind and responding to switch-frame events.  */
#include "commands.h"
#include "keyboard.h"
42
#include "frame.h"
Kim F. Storm's avatar
Kim F. Storm committed
43
#include "blockinput.h"
44
#include "termchar.h"
45
#include "termhooks.h"
Andreas Schwab's avatar
Andreas Schwab committed
46
#include "dispextern.h"
47
#include "window.h"
48
#include "font.h"
Andreas Schwab's avatar
Andreas Schwab committed
49
#ifdef HAVE_WINDOW_SYSTEM
50 51
#include "fontset.h"
#endif
Morten Welinder's avatar
Morten Welinder committed
52 53
#ifdef MSDOS
#include "msdos.h"
54
#include "dosfns.h"
Morten Welinder's avatar
Morten Welinder committed
55
#endif
Jim Blandy's avatar
Jim Blandy committed
56

Kim F. Storm's avatar
Kim F. Storm committed
57

58 59 60
#ifdef HAVE_WINDOW_SYSTEM

#endif
Kim F. Storm's avatar
Kim F. Storm committed
61

Chong Yidong's avatar
Chong Yidong committed
62 63 64 65
#ifdef HAVE_NS
Lisp_Object Qns_parse_geometry;
#endif

Kim F. Storm's avatar
Kim F. Storm committed
66 67
Lisp_Object Qframep, Qframe_live_p;
Lisp_Object Qicon, Qmodeline;
68
Lisp_Object Qonly;
69
Lisp_Object Qx, Qw32, Qmac, Qpc, Qns;
70
Lisp_Object Qvisible;
71
Lisp_Object Qdisplay_type;
72
static Lisp_Object Qbackground_mode;
73
Lisp_Object Qnoelisp;
Kim F. Storm's avatar
Kim F. Storm committed
74

75
static Lisp_Object Qx_frame_parameter;
Kim F. Storm's avatar
Kim F. Storm committed
76
Lisp_Object Qx_resource_name;
77 78
Lisp_Object Qterminal;
Lisp_Object Qterminal_live_p;
Kim F. Storm's avatar
Kim F. Storm committed
79 80 81 82 83 84

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

Lisp_Object Qauto_raise, Qauto_lower;
Lisp_Object Qborder_color, Qborder_width;
Lisp_Object Qcursor_color, Qcursor_type;
85
static Lisp_Object Qgeometry;  /* Not used */
Kim F. Storm's avatar
Kim F. Storm committed
86 87 88
Lisp_Object Qheight, Qwidth;
Lisp_Object Qleft, Qright;
Lisp_Object Qicon_left, Qicon_top, Qicon_type, Qicon_name;
89
Lisp_Object Qtooltip;
Kim F. Storm's avatar
Kim F. Storm committed
90 91 92 93 94 95 96 97
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;
98
static Lisp_Object Quser_position, Quser_size;
Kim F. Storm's avatar
Kim F. Storm committed
99
Lisp_Object Qwait_for_wm;
100
static Lisp_Object Qwindow_id;
Kim F. Storm's avatar
Kim F. Storm committed
101
#ifdef HAVE_X_WINDOWS
102
static Lisp_Object Qouter_window_id;
Kim F. Storm's avatar
Kim F. Storm committed
103 104 105
#endif
Lisp_Object Qparent_id;
Lisp_Object Qtitle, Qname;
106
static Lisp_Object Qexplicit_name;
Kim F. Storm's avatar
Kim F. Storm committed
107
Lisp_Object Qunsplittable;
108
Lisp_Object Qmenu_bar_lines, Qtool_bar_lines, Qtool_bar_position;
Kim F. Storm's avatar
Kim F. Storm committed
109
Lisp_Object Qleft_fringe, Qright_fringe;
110 111
Lisp_Object Qbuffer_predicate;
static Lisp_Object Qbuffer_list, Qburied_buffer_list;
112
Lisp_Object Qtty_color_mode;
113
Lisp_Object Qtty, Qtty_type;
Jim Blandy's avatar
Jim Blandy committed
114

115
Lisp_Object Qfullscreen, Qfullwidth, Qfullheight, Qfullboth, Qmaximized;
116
Lisp_Object Qsticky;
Kenichi Handa's avatar
Kenichi Handa committed
117
Lisp_Object Qfont_backend;
118
Lisp_Object Qalpha;
Kim F. Storm's avatar
Kim F. Storm committed
119 120 121

Lisp_Object Qface_set_after_frame_default;

122
static Lisp_Object Qdelete_frame_functions;
123

124 125 126 127
#ifdef HAVE_WINDOW_SYSTEM
static void x_report_frame_params (struct frame *, Lisp_Object *);
#endif

128 129

static void
130
set_menu_bar_lines_1 (Lisp_Object window, int n)
131 132 133
{
  struct window *w = XWINDOW (window);

134
  XSETFASTINT (w->last_modified, 0);
135 136
  XSETFASTINT (w->top_line, XFASTINT (w->top_line) + n);
  XSETFASTINT (w->total_lines, XFASTINT (w->total_lines) - n);
137

138 139 140 141 142 143 144 145 146 147 148 149
  /* Handle just the top child in a vertical split.  */
  if (!NILP (w->vchild))
    set_menu_bar_lines_1 (w->vchild, n);

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

150
void
151
set_menu_bar_lines (struct frame *f, Lisp_Object value, Lisp_Object oldval)
152 153 154 155 156 157
{
  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
158
     frame itself, and get an error because you can't switch buffers
159 160 161 162
     in or split the minibuffer window.  */
  if (FRAME_MINIBUF_ONLY_P (f))
    return;

163
  if (TYPE_RANGED_INTEGERP (int, value))
164 165 166 167
    nlines = XINT (value);
  else
    nlines = 0;

168 169 170 171 172 173
  if (nlines != olines)
    {
      windows_or_buffers_changed++;
      FRAME_WINDOW_SIZES_CHANGED (f) = 1;
      FRAME_MENU_BAR_LINES (f) = nlines;
      set_menu_bar_lines_1 (f->root_window, nlines - olines);
174
      adjust_glyphs (f);
175
    }
176 177 178 179
}

Lisp_Object Vframe_list;

Jim Blandy's avatar
Jim Blandy committed
180

Jim Blandy's avatar
Jim Blandy committed
181
DEFUN ("framep", Fframep, Sframep, 1, 1, 0,
182
       doc: /* Return non-nil if OBJECT is a frame.
183 184 185 186 187 188
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.
189
See also `frame-live-p'.  */)
Dan Nicolaescu's avatar
Dan Nicolaescu committed
190
  (Lisp_Object object)
Jim Blandy's avatar
Jim Blandy committed
191
{
192
  if (!FRAMEP (object))
Jim Blandy's avatar
Jim Blandy committed
193
    return Qnil;
Jim Blandy's avatar
Jim Blandy committed
194
  switch (XFRAME (object)->output_method)
Jim Blandy's avatar
Jim Blandy committed
195
    {
196
    case output_initial: /* The initial frame is like a termcap frame. */
Jim Blandy's avatar
Jim Blandy committed
197 198 199
    case output_termcap:
      return Qt;
    case output_x_window:
200
      return Qx;
201 202
    case output_w32:
      return Qw32;
203 204
    case output_msdos_raw:
      return Qpc;
205 206
    case output_mac:
      return Qmac;
207 208
    case output_ns:
      return Qns;
Jim Blandy's avatar
Jim Blandy committed
209 210 211 212 213
    default:
      abort ();
    }
}

Jim Blandy's avatar
Jim Blandy committed
214
DEFUN ("frame-live-p", Fframe_live_p, Sframe_live_p, 1, 1, 0,
215 216
       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
217
frame, the return value indicates what sort of terminal device it is
Pavel Janík's avatar
Pavel Janík committed
218
displayed on.  See the documentation of `framep' for possible
Pavel Janík's avatar
Pavel Janík committed
219
return values.  */)
Dan Nicolaescu's avatar
Dan Nicolaescu committed
220
  (Lisp_Object object)
Jim Blandy's avatar
Jim Blandy committed
221
{
Jim Blandy's avatar
Jim Blandy committed
222 223 224
  return ((FRAMEP (object)
	   && FRAME_LIVE_P (XFRAME (object)))
	  ? Fframep (object)
Jim Blandy's avatar
Jim Blandy committed
225 226 227
	  : Qnil);
}

Paul Eggert's avatar
Paul Eggert committed
228
DEFUN ("window-system", Fwindow_system, Swindow_system, 0, 1, 0,
229
       doc: /* The name of the window system that FRAME is displaying through.
230 231 232 233 234 235 236 237 238 239 240 241
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
242
  (Lisp_Object frame)
243 244 245 246 247 248 249 250 251 252 253 254 255 256
{
  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;
257
}
258

Jim Blandy's avatar
Jim Blandy committed
259
struct frame *
260
make_frame (int mini_p)
Jim Blandy's avatar
Jim Blandy committed
261
{
Jim Blandy's avatar
Jim Blandy committed
262 263
  Lisp_Object frame;
  register struct frame *f;
Jim Blandy's avatar
Jim Blandy committed
264 265
  register Lisp_Object root_window;
  register Lisp_Object mini_window;
266 267

  f = allocate_frame ();
268
  XSETFRAME (frame, f);
Jim Blandy's avatar
Jim Blandy committed
269

270 271 272 273 274 275 276 277
  /* Initialize Lisp data.  Note that allocate_frame initializes all
     Lisp data to nil, so do it only for slots which should not be nil.  */
  f->tool_bar_position = Qtop;

  /* 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
278
  f->wants_modeline = 1;
279
  f->garbaged = 1;
Jim Blandy's avatar
Jim Blandy committed
280
  f->has_minibuffer = mini_p;
281
  f->vertical_scroll_bar_type = vertical_scroll_bar_none;
282 283
  f->column_width = 1;  /* !FRAME_WINDOW_P value */
  f->line_height = 1;  /* !FRAME_WINDOW_P value */
284
#ifdef HAVE_WINDOW_SYSTEM
285
  f->want_fullscreen = FULLSCREEN_NONE;
286
#endif
Jim Blandy's avatar
Jim Blandy committed
287

288
  root_window = make_window ();
Jim Blandy's avatar
Jim Blandy committed
289 290
  if (mini_p)
    {
291
      mini_window = make_window ();
Jim Blandy's avatar
Jim Blandy committed
292 293
      XWINDOW (root_window)->next = mini_window;
      XWINDOW (mini_window)->prev = root_window;
294
      XWINDOW (mini_window)->mini = 1;
Jim Blandy's avatar
Jim Blandy committed
295 296
      XWINDOW (mini_window)->frame = frame;
      f->minibuffer_window = mini_window;
Jim Blandy's avatar
Jim Blandy committed
297 298 299 300 301
    }
  else
    {
      mini_window = Qnil;
      XWINDOW (root_window)->next = Qnil;
Jim Blandy's avatar
Jim Blandy committed
302
      f->minibuffer_window = Qnil;
Jim Blandy's avatar
Jim Blandy committed
303 304
    }

Jim Blandy's avatar
Jim Blandy committed
305
  XWINDOW (root_window)->frame = frame;
Jim Blandy's avatar
Jim Blandy committed
306 307 308

  /* 10 is arbitrary,
     just so that there is "something there."
Jim Blandy's avatar
Jim Blandy committed
309
     Correct size will be set up later with change_frame_size.  */
Jim Blandy's avatar
Jim Blandy committed
310

311 312
  SET_FRAME_COLS (f, 10);
  FRAME_LINES (f) = 10;
Jim Blandy's avatar
Jim Blandy committed
313

314 315
  XSETFASTINT (XWINDOW (root_window)->total_cols, 10);
  XSETFASTINT (XWINDOW (root_window)->total_lines, (mini_p ? 9 : 10));
Jim Blandy's avatar
Jim Blandy committed
316 317 318

  if (mini_p)
    {
319 320 321
      XSETFASTINT (XWINDOW (mini_window)->total_cols, 10);
      XSETFASTINT (XWINDOW (mini_window)->top_line, 9);
      XSETFASTINT (XWINDOW (mini_window)->total_lines, 1);
Jim Blandy's avatar
Jim Blandy committed
322 323
    }

Jim Blandy's avatar
Jim Blandy committed
324
  /* Choose a buffer for the frame's root window.  */
Jim Blandy's avatar
Jim Blandy committed
325 326 327 328 329 330 331
  {
    Lisp_Object buf;

    XWINDOW (root_window)->buffer = Qt;
    buf = Fcurrent_buffer ();
    /* If buf is a 'hidden' buffer (i.e. one whose name starts with
       a space), try to find another one.  */
332
    if (SREF (Fbuffer_name (buf), 0) == ' ')
333
      buf = other_buffer_safely (buf);
334

335 336
    /* 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
337
       arrangement is not yet fully initialized at this point.  Windows
338 339 340
       don't have the right size, glyph matrices aren't initialized
       etc.  Running Lisp functions at this point surely ends in a
       SEGV.  */
341
    set_window_buffer (root_window, buf, 0, 0);
342
    f->buffer_list = Fcons (buf, Qnil);
Jim Blandy's avatar
Jim Blandy committed
343 344
  }

Jim Blandy's avatar
Jim Blandy committed
345 346 347
  if (mini_p)
    {
      XWINDOW (mini_window)->buffer = Qt;
348 349 350 351
      set_window_buffer (mini_window,
			 (NILP (Vminibuffer_list)
			  ? get_minibuffer (0)
			  : Fcar (Vminibuffer_list)),
352
			 0, 0);
Jim Blandy's avatar
Jim Blandy committed
353 354
    }

Jim Blandy's avatar
Jim Blandy committed
355 356
  f->root_window = root_window;
  f->selected_window = root_window;
Jim Blandy's avatar
Jim Blandy committed
357 358
  /* Make sure this window seems more recently used than
     a newly-created, never-selected window.  */
359 360
  ++window_select_count;
  XSETFASTINT (XWINDOW (f->selected_window)->use_time, window_select_count);
Jim Blandy's avatar
Jim Blandy committed
361

Jim Blandy's avatar
Jim Blandy committed
362
  return f;
Jim Blandy's avatar
Jim Blandy committed
363 364
}

365
#ifdef HAVE_WINDOW_SYSTEM
Jim Blandy's avatar
Jim Blandy committed
366
/* Make a frame using a separate minibuffer window on another frame.
Jim Blandy's avatar
Jim Blandy committed
367 368 369
   MINI_WINDOW is the minibuffer window to use.  nil means use the
   default (the global minibuffer).  */

Jim Blandy's avatar
Jim Blandy committed
370
struct frame *
371
make_frame_without_minibuffer (register Lisp_Object mini_window, KBOARD *kb, Lisp_Object display)
Jim Blandy's avatar
Jim Blandy committed
372
{
Jim Blandy's avatar
Jim Blandy committed
373
  register struct frame *f;
374
  struct gcpro gcpro1;
Jim Blandy's avatar
Jim Blandy committed
375

376
  if (!NILP (mini_window))
377
    CHECK_LIVE_WINDOW (mini_window);
Jim Blandy's avatar
Jim Blandy committed
378

379
  if (!NILP (mini_window)
380 381
      && FRAME_KBOARD (XFRAME (XWINDOW (mini_window)->frame)) != kb)
    error ("Frame and minibuffer must be on the same terminal");
382

Jim Blandy's avatar
Jim Blandy committed
383 384
  /* Make a frame containing just a root window.  */
  f = make_frame (0);
Jim Blandy's avatar
Jim Blandy committed
385

386 387 388
  if (NILP (mini_window))
    {
      /* Use default-minibuffer-frame if possible.  */
389 390
      if (!FRAMEP (KVAR (kb, Vdefault_minibuffer_frame))
	  || ! FRAME_LIVE_P (XFRAME (KVAR (kb, Vdefault_minibuffer_frame))))
391
	{
392 393 394 395
          Lisp_Object frame_dummy;

          XSETFRAME (frame_dummy, f);
          GCPRO1 (frame_dummy);
396
	  /* If there's no minibuffer frame to use, create one.  */
397
	  KVAR (kb, Vdefault_minibuffer_frame) =
398 399
	    call1 (intern ("make-initial-minibuffer-frame"), display);
          UNGCPRO;
400
	}
401

402
      mini_window = XFRAME (KVAR (kb, Vdefault_minibuffer_frame))->minibuffer_window;
403
    }
404

Jim Blandy's avatar
Jim Blandy committed
405
  f->minibuffer_window = mini_window;
406 407 408 409 410 411 412

  /* Make the chosen minibuffer window display the proper minibuffer,
     unless it is already showing a minibuffer.  */
  if (NILP (Fmemq (XWINDOW (mini_window)->buffer, Vminibuffer_list)))
    Fset_window_buffer (mini_window,
			(NILP (Vminibuffer_list)
			 ? get_minibuffer (0)
413
			 : Fcar (Vminibuffer_list)), Qnil);
Jim Blandy's avatar
Jim Blandy committed
414
  return f;
Jim Blandy's avatar
Jim Blandy committed
415 416
}

Jim Blandy's avatar
Jim Blandy committed
417
/* Make a frame containing only a minibuffer window.  */
Jim Blandy's avatar
Jim Blandy committed
418

Jim Blandy's avatar
Jim Blandy committed
419
struct frame *
420
make_minibuffer_frame (void)
Jim Blandy's avatar
Jim Blandy committed
421
{
Jim Blandy's avatar
Jim Blandy committed
422
  /* First make a frame containing just a root window, no minibuffer.  */
Jim Blandy's avatar
Jim Blandy committed
423

Jim Blandy's avatar
Jim Blandy committed
424
  register struct frame *f = make_frame (0);
Jim Blandy's avatar
Jim Blandy committed
425
  register Lisp_Object mini_window;
Jim Blandy's avatar
Jim Blandy committed
426
  register Lisp_Object frame;
Jim Blandy's avatar
Jim Blandy committed
427

428
  XSETFRAME (frame, f);
Jim Blandy's avatar
Jim Blandy committed
429

430
  f->auto_raise = 0;
Jim Blandy's avatar
Jim Blandy committed
431 432 433 434
  f->auto_lower = 0;
  f->no_split = 1;
  f->wants_modeline = 0;
  f->has_minibuffer = 1;
Jim Blandy's avatar
Jim Blandy committed
435 436 437 438 439

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

Jim Blandy's avatar
Jim Blandy committed
440
  mini_window = f->minibuffer_window = f->root_window;
441
  XWINDOW (mini_window)->mini = 1;
Jim Blandy's avatar
Jim Blandy committed
442
  XWINDOW (mini_window)->next = Qnil;
443
  XWINDOW (mini_window)->prev = Qnil;
Jim Blandy's avatar
Jim Blandy committed
444
  XWINDOW (mini_window)->frame = frame;
Jim Blandy's avatar
Jim Blandy committed
445 446 447 448

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

  Fset_window_buffer (mini_window,
Jim Blandy's avatar
Jim Blandy committed
449
		      (NILP (Vminibuffer_list)
Jim Blandy's avatar
Jim Blandy committed
450
		       ? get_minibuffer (0)
451
		       : Fcar (Vminibuffer_list)), Qnil);
Jim Blandy's avatar
Jim Blandy committed
452
  return f;
Jim Blandy's avatar
Jim Blandy committed
453
}
454
#endif /* HAVE_WINDOW_SYSTEM */
Jim Blandy's avatar
Jim Blandy committed
455

456
/* Construct a frame that refers to a terminal.  */
Jim Blandy's avatar
Jim Blandy committed
457

458
static printmax_t tty_frame_count;
459

Jim Blandy's avatar
Jim Blandy committed
460
struct frame *
461
make_initial_frame (void)
Jim Blandy's avatar
Jim Blandy committed
462
{
463
  struct frame *f;
464
  struct terminal *terminal;
465
  Lisp_Object frame;
466

467
  eassert (initial_kboard);
468

469 470 471
  /* The first call must initialize Vframe_list.  */
  if (! (NILP (Vframe_list) || CONSP (Vframe_list)))
    Vframe_list = Qnil;
Jim Blandy's avatar
Jim Blandy committed
472

473
  terminal = init_initial_terminal ();
474 475 476 477 478 479

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

  Vframe_list = Fcons (frame, Vframe_list);

480
  tty_frame_count = 1;
481
  f->name = make_pure_c_string ("F1");
482 483 484 485

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

486 487 488
  f->output_method = terminal->type;
  f->terminal = terminal;
  f->terminal->reference_count++;
489
  f->output_data.nothing = 0;
490

491 492
  FRAME_FOREGROUND_PIXEL (f) = FACE_TTY_DEFAULT_FG_COLOR;
  FRAME_BACKGROUND_PIXEL (f) = FACE_TTY_DEFAULT_BG_COLOR;
493

494 495
  FRAME_CAN_HAVE_SCROLL_BARS (f) = 0;
  FRAME_VERTICAL_SCROLL_BAR_TYPE (f) = vertical_scroll_bar_none;
496 497 498

  /* The default value of menu-bar-mode is t.  */
  set_menu_bar_lines (f, make_number (1), Qnil);
499

500 501 502
  if (!noninteractive)
    init_frame_faces (f);

503 504 505 506
  return f;
}


507
static struct frame *
508
make_terminal_frame (struct terminal *terminal)
509 510 511
{
  register struct frame *f;
  Lisp_Object frame;
512
  char name[sizeof "F" + INT_STRLEN_BOUND (printmax_t)];
513

514 515
  if (!terminal->name)
    error ("Terminal is not live, can't create new frames on it");
516

Jim Blandy's avatar
Jim Blandy committed
517
  f = make_frame (1);
518

519
  XSETFRAME (frame, f);
520 521
  Vframe_list = Fcons (frame, Vframe_list);

522
  tty_frame_count++;
523
  sprintf (name, "F%"pMd, tty_frame_count);
524
  f->name = build_string (name);
525 526 527

  f->visible = 1;		/* FRAME_SET_VISIBLE wd set frame_garbaged. */
  f->async_visible = 1;		/* Don't let visible be cleared later. */
528 529
  f->terminal = terminal;
  f->terminal->reference_count++;
530
#ifdef MSDOS
531
  f->output_data.tty->display_info = &the_only_display_info;
532 533 534
  if (!inhibit_window_system
      && (!FRAMEP (selected_frame) || !FRAME_LIVE_P (XFRAME (selected_frame))
	  || XFRAME (selected_frame)->output_method == output_msdos_raw))
535
    f->output_method = output_msdos_raw;
536 537
  else
    f->output_method = output_termcap;
538 539 540 541 542 543
#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 */
544

545 546
  FRAME_CAN_HAVE_SCROLL_BARS (f) = 0;
  FRAME_VERTICAL_SCROLL_BAR_TYPE (f) = vertical_scroll_bar_none;
547
  FRAME_MENU_BAR_LINES(f) = NILP (Vmenu_bar_mode) ? 0 : 1;
548 549 550 551 552 553 554 555

  /* 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;

556 557
  if (!noninteractive)
    init_frame_faces (f);
558

Jim Blandy's avatar
Jim Blandy committed
559
  return f;
Jim Blandy's avatar
Jim Blandy committed
560
}
561

562 563
/* Get a suitable value for frame parameter PARAMETER for a newly
   created frame, based on (1) the user-supplied frame parameter
564
   alist SUPPLIED_PARMS, and (2) CURRENT_VALUE.  */
565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585

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))
    result = Fassq (parameter, XFRAME (selected_frame)->param_alist);
  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;
}

586
DEFUN ("make-terminal-frame", Fmake_terminal_frame, Smake_terminal_frame,
587
       1, 1, 0,
588
       doc: /* Create an additional terminal frame, possibly on another terminal.
589
This function takes one argument, an alist specifying frame parameters.
590

591 592
You can create multiple frames on a single text terminal, but only one
of them (the selected terminal frame) is actually displayed.
593 594 595 596 597 598 599 600

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")))

601 602
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
603
  (Lisp_Object parms)
604 605
{
  struct frame *f;
606
  struct terminal *t = NULL;
607
  Lisp_Object frame, tem;
608
  struct frame *sf = SELECTED_FRAME ();
609

610
#ifdef MSDOS
611 612
  if (sf->output_method != output_msdos_raw
      && sf->output_method != output_termcap)
613
    abort ();
614 615
#else /* not MSDOS */

616
#ifdef WINDOWSNT                           /* This should work now! */
617
  if (sf->output_method != output_termcap)
618
    error ("Not using an ASCII terminal now; cannot make a new ASCII frame");
619
#endif
620
#endif /* not MSDOS */
621

622
  {
623
    Lisp_Object terminal;
624

625 626
    terminal = Fassq (Qterminal, parms);
    if (!NILP (terminal))
627
      {
628 629
        terminal = XCDR (terminal);
        t = get_terminal (terminal, 1);
630
      }
631 632 633 634 635 636 637
#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
638
  }
639

640
  if (!t)
641
    {
642
      char *name = 0, *type = 0;
643
      Lisp_Object tty, tty_type;
644

645 646 647 648 649
      tty = get_future_frame_param
        (Qtty, parms, (FRAME_TERMCAP_P (XFRAME (selected_frame))
                       ? FRAME_TTY (XFRAME (selected_frame))->name
                       : NULL));
      if (!NILP (tty))
650 651
        {
          name = (char *) alloca (SBYTES (tty) + 1);
652
          strncpy (name, SSDATA (tty), SBYTES (tty));
653 654
          name[SBYTES (tty)] = 0;
        }
655

656 657 658 659 660
      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))
661 662
        {
          type = (char *) alloca (SBYTES (tty_type) + 1);
663
          strncpy (type, SSDATA (tty_type), SBYTES (tty_type));
664 665 666
          type[SBYTES (tty_type)] = 0;
        }

667
      t = init_tty (name, type, 0); /* Errors are not fatal. */
668
    }
669

670
  f = make_terminal_frame (t);
671

672 673
  {
    int width, height;
674
    get_tty_size (fileno (FRAME_TTY (f)->input), &width, &height);
675 676
    change_frame_size (f, height, width, 0, 0, 0);
  }
677

678
  adjust_glyphs (f);
679 680 681
  calculate_costs (f);
  XSETFRAME (frame, f);
  Fmodify_frame_parameters (frame, parms);
682
  Fmodify_frame_parameters (frame, Fcons (Fcons (Qtty_type,
683
                                                 build_string (t->display_info.tty->type)),
684
                                          Qnil));
685 686 687 688 689 690
  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));
691

692 693
  /* Make the frame face alist be frame-specific, so that each
     frame could change its face definitions independently.  */
694
  f->face_alist = Fcopy_alist (sf->face_alist);
695 696 697 698
  /* Simple Fcopy_alist isn't enough, because we need the contents of
     the vectors which are the CDRs of associations in face_alist to
     be copied as well.  */
  for (tem = f->face_alist; CONSP (tem); tem = XCDR (tem))
699
    XSETCDR (XCAR (tem), Fcopy_sequence (XCDR (XCAR (tem))));
700 701
  return frame;
}
702

Jim Blandy's avatar
Jim Blandy committed
703

704 705 706 707 708 709 710 711 712 713
/* 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
714
   deleted, which includes the possibility that the frame's terminal
715 716 717
   is dead.

   The value of NORECORD is passed as argument to Fselect_window.  */
718

719
Lisp_Object
720
do_switch_frame (Lisp_Object frame, int track, int for_deletion, Lisp_Object norecord)
Jim Blandy's avatar
Jim Blandy committed
721
{
722
  struct frame *sf = SELECTED_FRAME ();
723

724 725 726
  /* If FRAME is a switch-frame event, extract the frame we should
     switch to.  */
  if (CONSP (frame)
727 728 729
      && EQ (XCAR (frame), Qswitch_frame)
      && CONSP (XCDR (frame)))
    frame = XCAR (XCDR (frame));
730

731 732 733
  /* 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.  */
734
  CHECK_FRAME (frame);
735 736
  if (! FRAME_LIVE_P (XFRAME (frame)))
    return Qnil;
Jim Blandy's avatar
Jim Blandy committed
737

738
  if (sf == XFRAME (frame))
Jim Blandy's avatar
Jim Blandy committed
739
    return frame;
Jim Blandy's avatar
Jim Blandy committed
740

741 742 743
  /* This is too greedy; it causes inappropriate focus redirection
     that's hard to get rid of.  */
#if 0
744 745 746 747 748 749 750
  /* 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.  */
751 752 753
  if (track)
    {
      Lisp_Object tail;
754

755
      for (tail = Vframe_list; CONSP (tail); tail = XCDR (tail))
756 757
	{
	  Lisp_Object focus;
758

759
	  if (!FRAMEP (XCAR (tail)))
760
	    abort ();
761

762
	  focus = FRAME_FOCUS_FRAME (XFRAME (XCAR (tail)));
763

764
	  if (FRAMEP (focus) && XFRAME (focus) == SELECTED_FRAME ())
765
	    Fredirect_frame_focus (XCAR (tail), frame);
766 767 768 769
	}
    }
#else /* ! 0 */
  /* Instead, apply it only to the frame we're pointing to.  */
770
#ifdef HAVE_WINDOW_SYSTEM
771
  if (track && FRAME_WINDOW_P (XFRAME (frame)))
772 773 774
    {
      Lisp_Object focus, xfocus;

775
      xfocus = x_get_focus_frame (XFRAME (frame));
776 777 778
      if (FRAMEP (xfocus))
	{
	  focus = FRAME_FOCUS_FRAME (XFRAME (xfocus));
779
	  if (FRAMEP (focus) && XFRAME (focus) == SELECTED_FRAME ())
780 781 782 783 784
	    Fredirect_frame_focus (xfocus, frame);
	}
    }
#endif /* HAVE_X_WINDOWS */
#endif /* ! 0 */
785

786
  if (!for_deletion && FRAME_HAS_MINIBUF_P (sf))
787 788
    resize_mini_window (XWINDOW (FRAME_MINIBUF_WINDOW (sf)), 1);

789
  if (FRAME_TERMCAP_P (XFRAME (frame)) || FRAME_MSDOS_P (XFRAME (frame)))
790
    {
791 792 793
      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;
794 795 796 797
      XFRAME (frame)->async_visible = 1;
      FRAME_TTY (XFRAME (frame))->top_frame = frame;
    }

798 799 800
  selected_frame = frame;
  if (! FRAME_MINIBUF_ONLY_P (XFRAME (selected_frame)))
    last_nonminibuf_frame = XFRAME (selected_frame);
Jim Blandy's avatar
Jim Blandy committed
801

802
  Fselect_window (XFRAME (frame)->selected_window, norecord);
Jim Blandy's avatar
Jim Blandy committed
803

804
  /* We want to make sure that the next event generates a frame-switch
805
     event to the appropriate frame.  This seems kludgy to me, but
806 807 808 809
     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.  */
810
  internal_last_event_frame = Qnil;
811

Jim Blandy's avatar
Jim Blandy committed
812
  return frame;
Jim Blandy's avatar
Jim Blandy committed
813 814
}

Paul Eggert's avatar
Paul Eggert committed
815
DEFUN ("select-frame", Fselect_frame, Sselect_frame, 1, 2, "e",
816
       doc: /* Select FRAME.
817
Subsequent editing commands apply to its selected window.
818 819 820
Optional argument NORECORD means to neither change the order of
recently selected windows nor the buffer list.

821
The selection of FRAME lasts until the next time the user does
822 823 824
something to select a different frame, or until the next time
this function is called.  If you are using a window system, the
previously selected frame may be restored as the selected frame
Juanma Barranquero's avatar
Juanma Barranquero committed
825
when returning to the command loop, because it still may have
826 827
the window system's input focus.  On a text terminal, the next
redisplay will display FRAME.
828 829

This function returns FRAME, or nil if FRAME has been deleted.  */)
Dan Nicolaescu's avatar
Dan Nicolaescu committed
830
  (Lisp_Object frame, Lisp_Object norecord)
831
{
832
  return do_switch_frame (frame, 1, 0, norecord);
833 834 835
}


836
DEFUN ("handle-switch-frame", Fhandle_switch_frame, Shandle_switch_frame, 1, 1, "e",
837