frame.c 130 KB
Newer Older
Jim Blandy's avatar
Jim Blandy committed
1
/* Generic frame functions.
2
   Copyright (C) 1993, 1994, 1995, 1997, 1999, 2000, 2001, 2002, 2003,
Glenn Morris's avatar
Glenn Morris committed
3
                 2004, 2005, 2006, 2007, 2008 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
#include "lisp.h"
24
#include "character.h"
25
#ifdef HAVE_X_WINDOWS
Andreas Schwab's avatar
Andreas Schwab committed
26
#include "xterm.h"
Karl Heuer's avatar
Karl Heuer committed
27
#endif
Andrew Innes's avatar
Andrew Innes committed
28 29 30
#ifdef WINDOWSNT
#include "w32term.h"
#endif
31
#ifdef MAC_OS
32 33
#include "macterm.h"
#endif
34 35 36 37
#include "buffer.h"
/* These help us bind and responding to switch-frame events.  */
#include "commands.h"
#include "keyboard.h"
38
#include "frame.h"
Kim F. Storm's avatar
Kim F. Storm committed
39
#include "blockinput.h"
40
#include "termchar.h"
41
#include "termhooks.h"
Andreas Schwab's avatar
Andreas Schwab committed
42
#include "dispextern.h"
43
#include "window.h"
44 45 46 47
#ifdef HAVE_WINDOW_SYSTEM
#include "font.h"
#include "fontset.h"
#endif
Morten Welinder's avatar
Morten Welinder committed
48 49
#ifdef MSDOS
#include "msdos.h"
50
#include "dosfns.h"
Morten Welinder's avatar
Morten Welinder committed
51
#endif
Jim Blandy's avatar
Jim Blandy committed
52

Kim F. Storm's avatar
Kim F. Storm committed
53

54 55
#ifdef HAVE_WINDOW_SYSTEM

Kim F. Storm's avatar
Kim F. Storm committed
56 57 58 59 60 61 62 63 64
/* The name we're using in resource queries.  Most often "emacs".  */

Lisp_Object Vx_resource_name;

/* The application class we're using in resource queries.
   Normally "Emacs".  */

Lisp_Object Vx_resource_class;

65
#endif
Kim F. Storm's avatar
Kim F. Storm committed
66 67 68

Lisp_Object Qframep, Qframe_live_p;
Lisp_Object Qicon, Qmodeline;
69
Lisp_Object Qonly;
Kim F. Storm's avatar
Kim F. Storm committed
70
Lisp_Object Qx, Qw32, Qmac, Qpc;
71
Lisp_Object Qvisible;
72
Lisp_Object Qdisplay_type;
73
Lisp_Object Qbackground_mode;
74
Lisp_Object Qnoelisp;
Kim F. Storm's avatar
Kim F. Storm committed
75 76 77

Lisp_Object Qx_frame_parameter;
Lisp_Object Qx_resource_name;
78 79
Lisp_Object Qterminal;
Lisp_Object Qterminal_live_p;
Kim F. Storm's avatar
Kim F. Storm committed
80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105

/* 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 Qgeometry;  /* Not used */
Lisp_Object Qheight, Qwidth;
Lisp_Object Qleft, Qright;
Lisp_Object Qicon_left, Qicon_top, Qicon_type, Qicon_name;
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;
Lisp_Object Quser_position, Quser_size;
Lisp_Object Qwait_for_wm;
Lisp_Object Qwindow_id;
#ifdef HAVE_X_WINDOWS
Lisp_Object Qouter_window_id;
#endif
Lisp_Object Qparent_id;
Lisp_Object Qtitle, Qname;
106
Lisp_Object Qexplicit_name;
Kim F. Storm's avatar
Kim F. Storm committed
107 108 109
Lisp_Object Qunsplittable;
Lisp_Object Qmenu_bar_lines, Qtool_bar_lines;
Lisp_Object Qleft_fringe, Qright_fringe;
110
Lisp_Object Qbuffer_predicate, Qbuffer_list, Qburied_buffer_list;
111
Lisp_Object Qtty_color_mode;
112
Lisp_Object Qtty, Qtty_type;
Jim Blandy's avatar
Jim Blandy committed
113

Kim F. Storm's avatar
Kim F. Storm committed
114
Lisp_Object Qfullscreen, Qfullwidth, Qfullheight, Qfullboth;
Kenichi Handa's avatar
Kenichi Handa committed
115
Lisp_Object Qfont_backend;
Kim F. Storm's avatar
Kim F. Storm committed
116

117
Lisp_Object Qinhibit_face_set_after_frame_default;
Kim F. Storm's avatar
Kim F. Storm committed
118 119
Lisp_Object Qface_set_after_frame_default;

120
Lisp_Object Vterminal_frame;
121
Lisp_Object Vdefault_frame_alist;
Kenichi Handa's avatar
Kenichi Handa committed
122
Lisp_Object Vdefault_frame_scroll_bars;
123
Lisp_Object Vmouse_position_function;
124
Lisp_Object Vmouse_highlight;
125
static Lisp_Object Vdelete_frame_functions, Qdelete_frame_functions;
126 127

int focus_follows_mouse;
128 129 130

static void
set_menu_bar_lines_1 (window, n)
131 132
     Lisp_Object window;
     int n;
133 134 135
{
  struct window *w = XWINDOW (window);

136
  XSETFASTINT (w->last_modified, 0);
137 138
  XSETFASTINT (w->top_line, XFASTINT (w->top_line) + n);
  XSETFASTINT (w->total_lines, XFASTINT (w->total_lines) - n);
139

140 141 142 143
  if (INTEGERP (w->orig_top_line))
    XSETFASTINT (w->orig_top_line, XFASTINT (w->orig_top_line) + n);
  if (INTEGERP (w->orig_total_lines))
    XSETFASTINT (w->orig_total_lines, XFASTINT (w->orig_total_lines) - n);
144 145 146 147 148 149 150 151 152 153 154 155 156

  /* 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);
    }
}

157
void
158 159 160 161 162 163 164 165 166
set_menu_bar_lines (f, value, oldval)
     struct frame *f;
     Lisp_Object value, oldval;
{
  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
167
     frame itself, and get an error because you can't switch buffers
168 169 170 171 172 173 174 175 176
     in or split the minibuffer window.  */
  if (FRAME_MINIBUF_ONLY_P (f))
    return;

  if (INTEGERP (value))
    nlines = XINT (value);
  else
    nlines = 0;

177 178 179 180 181 182
  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);
183
      adjust_glyphs (f);
184
    }
185 186 187 188 189
}

Lisp_Object Vemacs_iconified;
Lisp_Object Vframe_list;

Jim Blandy's avatar
Jim Blandy committed
190 191
extern Lisp_Object Vminibuffer_list;
extern Lisp_Object get_minibuffer ();
192 193
extern Lisp_Object Fhandle_switch_frame ();
extern Lisp_Object Fredirect_frame_focus ();
Karl Heuer's avatar
Karl Heuer committed
194
extern Lisp_Object x_get_focus_frame ();
Jim Blandy's avatar
Jim Blandy committed
195

Jim Blandy's avatar
Jim Blandy committed
196
DEFUN ("framep", Fframep, Sframep, 1, 1, 0,
197 198 199 200 201 202 203 204
       doc: /* Return non-nil if OBJECT is a frame.
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,
`mac' for an Emacs frame on a Macintosh display,
`pc' for a direct-write MS-DOS frame.
See also `frame-live-p'.  */)
     (object)
Jim Blandy's avatar
Jim Blandy committed
205
     Lisp_Object object;
Jim Blandy's avatar
Jim Blandy committed
206
{
207
  if (!FRAMEP (object))
Jim Blandy's avatar
Jim Blandy committed
208
    return Qnil;
Jim Blandy's avatar
Jim Blandy committed
209
  switch (XFRAME (object)->output_method)
Jim Blandy's avatar
Jim Blandy committed
210
    {
211
    case output_initial: /* The initial frame is like a termcap frame. */
Jim Blandy's avatar
Jim Blandy committed
212 213 214
    case output_termcap:
      return Qt;
    case output_x_window:
215
      return Qx;
216 217
    case output_w32:
      return Qw32;
218 219
    case output_msdos_raw:
      return Qpc;
220 221
    case output_mac:
      return Qmac;
Jim Blandy's avatar
Jim Blandy committed
222 223 224 225 226
    default:
      abort ();
    }
}

Jim Blandy's avatar
Jim Blandy committed
227
DEFUN ("frame-live-p", Fframe_live_p, Sframe_live_p, 1, 1, 0,
228 229
       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
230
frame, the return value indicates what sort of terminal device it is
Pavel Janík's avatar
Pavel Janík committed
231
displayed on.  See the documentation of `framep' for possible
Pavel Janík's avatar
Pavel Janík committed
232
return values.  */)
233
     (object)
Jim Blandy's avatar
Jim Blandy committed
234 235
     Lisp_Object object;
{
Jim Blandy's avatar
Jim Blandy committed
236 237 238
  return ((FRAMEP (object)
	   && FRAME_LIVE_P (XFRAME (object)))
	  ? Fframep (object)
Jim Blandy's avatar
Jim Blandy committed
239 240 241
	  : Qnil);
}

242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263
DEFUN ("window-system", Fwindow_system, Swindow_system, 0, 1, 0,
       doc: /* The name of the window system that FRAME is displaying through.
The value is a symbol---for instance, 'x' for X windows.
The value is nil if Emacs is using a text-only terminal.

FRAME defaults to the currently selected frame.  */)
  (frame)
     Lisp_Object frame;
{
  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;
264
}
265

Jim Blandy's avatar
Jim Blandy committed
266 267
struct frame *
make_frame (mini_p)
Jim Blandy's avatar
Jim Blandy committed
268 269
     int mini_p;
{
Jim Blandy's avatar
Jim Blandy committed
270 271
  Lisp_Object frame;
  register struct frame *f;
Jim Blandy's avatar
Jim Blandy committed
272 273
  register Lisp_Object root_window;
  register Lisp_Object mini_window;
274 275

  f = allocate_frame ();
276
  XSETFRAME (frame, f);
Jim Blandy's avatar
Jim Blandy committed
277

278 279 280 281 282 283
  f->desired_matrix = 0;
  f->current_matrix = 0;
  f->desired_pool = 0;
  f->current_pool = 0;
  f->glyphs_initialized_p = 0;
  f->decode_mode_spec_buffer = 0;
Jim Blandy's avatar
Jim Blandy committed
284
  f->visible = 0;
285
  f->async_visible = 0;
286
  f->output_data.nothing = 0;
Jim Blandy's avatar
Jim Blandy committed
287
  f->iconified = 0;
288
  f->async_iconified = 0;
Jim Blandy's avatar
Jim Blandy committed
289 290 291 292
  f->wants_modeline = 1;
  f->auto_raise = 0;
  f->auto_lower = 0;
  f->no_split = 0;
293
  f->garbaged = 1;
Jim Blandy's avatar
Jim Blandy committed
294
  f->has_minibuffer = mini_p;
295
  f->focus_frame = Qnil;
296
  f->explicit_name = 0;
297
  f->can_have_scroll_bars = 0;
298
  f->vertical_scroll_bar_type = vertical_scroll_bar_none;
Jim Blandy's avatar
Jim Blandy committed
299
  f->param_alist = Qnil;
300 301
  f->scroll_bars = Qnil;
  f->condemned_scroll_bars = Qnil;
302
  f->face_alist = Qnil;
303
  f->face_cache = NULL;
304
  f->menu_bar_items = Qnil;
305 306
  f->menu_bar_vector = Qnil;
  f->menu_bar_items_used = 0;
307
  f->buffer_predicate = Qnil;
308
  f->buffer_list = Qnil;
309
  f->buried_buffer_list = Qnil;
310
  f->namebuf = 0;
311
  f->title = Qnil;
312
  f->menu_bar_window = Qnil;
313
  f->tool_bar_window = Qnil;
314
  f->tool_bar_items = Qnil;
315
  f->desired_tool_bar_string = f->current_tool_bar_string = Qnil;
316
  f->n_tool_bar_items = 0;
317 318 319 320 321 322 323 324
  f->left_fringe_width = f->right_fringe_width = 0;
  f->fringe_cols = 0;
  f->scroll_bar_actual_width = 0;
  f->border_width = 0;
  f->internal_border_width = 0;
  f->column_width = 1;  /* !FRAME_WINDOW_P value */
  f->line_height = 1;  /* !FRAME_WINDOW_P value */
  f->x_pixels_diff = f->y_pixels_diff = 0;
325
#ifdef HAVE_WINDOW_SYSTEM
326
  f->want_fullscreen = FULLSCREEN_NONE;
327
#endif
328 329
  f->size_hint_flags = 0;
  f->win_gravity = 0;
Kenichi Handa's avatar
Kenichi Handa committed
330
  f->font_driver_list = NULL;
331
  f->font_data_list = NULL;
Jim Blandy's avatar
Jim Blandy committed
332

333
  root_window = make_window ();
Jim Blandy's avatar
Jim Blandy committed
334 335
  if (mini_p)
    {
336
      mini_window = make_window ();
Jim Blandy's avatar
Jim Blandy committed
337 338 339
      XWINDOW (root_window)->next = mini_window;
      XWINDOW (mini_window)->prev = root_window;
      XWINDOW (mini_window)->mini_p = Qt;
Jim Blandy's avatar
Jim Blandy committed
340 341
      XWINDOW (mini_window)->frame = frame;
      f->minibuffer_window = mini_window;
Jim Blandy's avatar
Jim Blandy committed
342 343 344 345 346
    }
  else
    {
      mini_window = Qnil;
      XWINDOW (root_window)->next = Qnil;
Jim Blandy's avatar
Jim Blandy committed
347
      f->minibuffer_window = Qnil;
Jim Blandy's avatar
Jim Blandy committed
348 349
    }

Jim Blandy's avatar
Jim Blandy committed
350
  XWINDOW (root_window)->frame = frame;
Jim Blandy's avatar
Jim Blandy committed
351 352 353

  /* 10 is arbitrary,
     just so that there is "something there."
Jim Blandy's avatar
Jim Blandy committed
354
     Correct size will be set up later with change_frame_size.  */
Jim Blandy's avatar
Jim Blandy committed
355

356 357
  SET_FRAME_COLS (f, 10);
  FRAME_LINES (f) = 10;
Jim Blandy's avatar
Jim Blandy committed
358

359 360
  XSETFASTINT (XWINDOW (root_window)->total_cols, 10);
  XSETFASTINT (XWINDOW (root_window)->total_lines, (mini_p ? 9 : 10));
Jim Blandy's avatar
Jim Blandy committed
361 362 363

  if (mini_p)
    {
364 365 366
      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
367 368
    }

Jim Blandy's avatar
Jim Blandy committed
369
  /* Choose a buffer for the frame's root window.  */
Jim Blandy's avatar
Jim Blandy committed
370 371 372 373 374 375 376
  {
    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.  */
377
    if (SREF (Fbuffer_name (buf), 0) == ' ')
378
      buf = Fother_buffer (buf, Qnil, Qnil);
379

380 381 382 383 384 385
    /* 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
       arrangement is not yet fully intialized at this point.  Windows
       don't have the right size, glyph matrices aren't initialized
       etc.  Running Lisp functions at this point surely ends in a
       SEGV.  */
386
    set_window_buffer (root_window, buf, 0, 0);
387
    f->buffer_list = Fcons (buf, Qnil);
Jim Blandy's avatar
Jim Blandy committed
388 389
  }

Jim Blandy's avatar
Jim Blandy committed
390 391 392
  if (mini_p)
    {
      XWINDOW (mini_window)->buffer = Qt;
393 394 395 396
      set_window_buffer (mini_window,
			 (NILP (Vminibuffer_list)
			  ? get_minibuffer (0)
			  : Fcar (Vminibuffer_list)),
397
			 0, 0);
Jim Blandy's avatar
Jim Blandy committed
398 399
    }

Jim Blandy's avatar
Jim Blandy committed
400 401
  f->root_window = root_window;
  f->selected_window = root_window;
Jim Blandy's avatar
Jim Blandy committed
402 403
  /* Make sure this window seems more recently used than
     a newly-created, never-selected window.  */
404 405
  ++window_select_count;
  XSETFASTINT (XWINDOW (f->selected_window)->use_time, window_select_count);
Jim Blandy's avatar
Jim Blandy committed
406

407 408
  f->default_face_done_p = 0;

Jim Blandy's avatar
Jim Blandy committed
409
  return f;
Jim Blandy's avatar
Jim Blandy committed
410 411
}

412
#ifdef HAVE_WINDOW_SYSTEM
Jim Blandy's avatar
Jim Blandy committed
413
/* Make a frame using a separate minibuffer window on another frame.
Jim Blandy's avatar
Jim Blandy committed
414 415 416
   MINI_WINDOW is the minibuffer window to use.  nil means use the
   default (the global minibuffer).  */

Jim Blandy's avatar
Jim Blandy committed
417
struct frame *
418
make_frame_without_minibuffer (mini_window, kb, display)
Jim Blandy's avatar
Jim Blandy committed
419
     register Lisp_Object mini_window;
420
     KBOARD *kb;
421
     Lisp_Object display;
Jim Blandy's avatar
Jim Blandy committed
422
{
Jim Blandy's avatar
Jim Blandy committed
423
  register struct frame *f;
424
  struct gcpro gcpro1;
Jim Blandy's avatar
Jim Blandy committed
425

426
  if (!NILP (mini_window))
427
    CHECK_LIVE_WINDOW (mini_window);
Jim Blandy's avatar
Jim Blandy committed
428

429
#ifdef MULTI_KBOARD
430
  if (!NILP (mini_window)
431 432
      && FRAME_KBOARD (XFRAME (XWINDOW (mini_window)->frame)) != kb)
    error ("Frame and minibuffer must be on the same terminal");
433 434
#endif

Jim Blandy's avatar
Jim Blandy committed
435 436
  /* Make a frame containing just a root window.  */
  f = make_frame (0);
Jim Blandy's avatar
Jim Blandy committed
437

438 439 440 441 442 443
  if (NILP (mini_window))
    {
      /* Use default-minibuffer-frame if possible.  */
      if (!FRAMEP (kb->Vdefault_minibuffer_frame)
	  || ! FRAME_LIVE_P (XFRAME (kb->Vdefault_minibuffer_frame)))
	{
444 445 446 447
          Lisp_Object frame_dummy;

          XSETFRAME (frame_dummy, f);
          GCPRO1 (frame_dummy);
448
	  /* If there's no minibuffer frame to use, create one.  */
449 450 451
	  kb->Vdefault_minibuffer_frame =
	    call1 (intern ("make-initial-minibuffer-frame"), display);
          UNGCPRO;
452
	}
453

454 455
      mini_window = XFRAME (kb->Vdefault_minibuffer_frame)->minibuffer_window;
    }
456

Jim Blandy's avatar
Jim Blandy committed
457
  f->minibuffer_window = mini_window;
458 459 460 461 462 463 464

  /* 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)
465
			 : Fcar (Vminibuffer_list)), Qnil);
Jim Blandy's avatar
Jim Blandy committed
466
  return f;
Jim Blandy's avatar
Jim Blandy committed
467 468
}

Jim Blandy's avatar
Jim Blandy committed
469
/* Make a frame containing only a minibuffer window.  */
Jim Blandy's avatar
Jim Blandy committed
470

Jim Blandy's avatar
Jim Blandy committed
471 472
struct frame *
make_minibuffer_frame ()
Jim Blandy's avatar
Jim Blandy committed
473
{
Jim Blandy's avatar
Jim Blandy committed
474
  /* First make a frame containing just a root window, no minibuffer.  */
Jim Blandy's avatar
Jim Blandy committed
475

Jim Blandy's avatar
Jim Blandy committed
476
  register struct frame *f = make_frame (0);
Jim Blandy's avatar
Jim Blandy committed
477
  register Lisp_Object mini_window;
Jim Blandy's avatar
Jim Blandy committed
478
  register Lisp_Object frame;
Jim Blandy's avatar
Jim Blandy committed
479

480
  XSETFRAME (frame, f);
Jim Blandy's avatar
Jim Blandy committed
481

482
  f->auto_raise = 0;
Jim Blandy's avatar
Jim Blandy committed
483 484 485 486
  f->auto_lower = 0;
  f->no_split = 1;
  f->wants_modeline = 0;
  f->has_minibuffer = 1;
Jim Blandy's avatar
Jim Blandy committed
487 488 489 490 491

  /* 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
492
  mini_window = f->minibuffer_window = f->root_window;
Jim Blandy's avatar
Jim Blandy committed
493 494
  XWINDOW (mini_window)->mini_p = Qt;
  XWINDOW (mini_window)->next = Qnil;
495
  XWINDOW (mini_window)->prev = Qnil;
Jim Blandy's avatar
Jim Blandy committed
496
  XWINDOW (mini_window)->frame = frame;
Jim Blandy's avatar
Jim Blandy committed
497 498 499 500

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

  Fset_window_buffer (mini_window,
Jim Blandy's avatar
Jim Blandy committed
501
		      (NILP (Vminibuffer_list)
Jim Blandy's avatar
Jim Blandy committed
502
		       ? get_minibuffer (0)
503
		       : Fcar (Vminibuffer_list)), Qnil);
Jim Blandy's avatar
Jim Blandy committed
504
  return f;
Jim Blandy's avatar
Jim Blandy committed
505
}
506
#endif /* HAVE_WINDOW_SYSTEM */
Jim Blandy's avatar
Jim Blandy committed
507

508
/* Construct a frame that refers to a terminal.  */
Jim Blandy's avatar
Jim Blandy committed
509

510
static int tty_frame_count;
511

Jim Blandy's avatar
Jim Blandy committed
512
struct frame *
513
make_initial_frame (void)
Jim Blandy's avatar
Jim Blandy committed
514
{
515
  struct frame *f;
516
  struct terminal *terminal;
517
  Lisp_Object frame;
518

519
  eassert (initial_kboard);
520

521 522 523
  /* The first call must initialize Vframe_list.  */
  if (! (NILP (Vframe_list) || CONSP (Vframe_list)))
    Vframe_list = Qnil;
Jim Blandy's avatar
Jim Blandy committed
524

525
  terminal = init_initial_terminal ();
526 527 528 529 530 531

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

  Vframe_list = Fcons (frame, Vframe_list);

532
  tty_frame_count = 1;
533 534 535 536 537
  f->name = build_string ("F1");

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

538 539 540
  f->output_method = terminal->type;
  f->terminal = terminal;
  f->terminal->reference_count++;
541
  f->output_data.nothing = 0;
542

543 544
  FRAME_FOREGROUND_PIXEL (f) = FACE_TTY_DEFAULT_FG_COLOR;
  FRAME_BACKGROUND_PIXEL (f) = FACE_TTY_DEFAULT_BG_COLOR;
545

546 547 548 549 550 551 552 553
  FRAME_CAN_HAVE_SCROLL_BARS (f) = 0;
  FRAME_VERTICAL_SCROLL_BAR_TYPE (f) = vertical_scroll_bar_none;

  return f;
}


struct frame *
554
make_terminal_frame (struct terminal *terminal)
555 556 557 558
{
  register struct frame *f;
  Lisp_Object frame;
  char name[20];
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);

568 569
  tty_frame_count++;
  sprintf (name, "F%d", tty_frame_count);
570
  f->name = build_string (name);
571 572 573

  f->visible = 1;		/* FRAME_SET_VISIBLE wd set frame_garbaged. */
  f->async_visible = 1;		/* Don't let visible be cleared later. */
574 575
#ifdef MSDOS
  f->output_data.x = &the_only_x_display;
576 577 578
  if (!inhibit_window_system
      && (!FRAMEP (selected_frame) || !FRAME_LIVE_P (XFRAME (selected_frame))
	  || XFRAME (selected_frame)->output_method == output_msdos_raw))
579 580 581 582 583 584 585 586 587 588
    {
      f->output_method = output_msdos_raw;
      /* This initialization of foreground and background pixels is
	 only important for the initial frame created in temacs.  If
	 we don't do that, we get black background and foreground in
	 the dumped Emacs because the_only_x_display is a static
	 variable, hence it is born all-zeroes, and zero is the code
	 for the black color.  Other frames all inherit their pixels
	 from what's already in the_only_x_display.  */
      if ((!FRAMEP (selected_frame) || !FRAME_LIVE_P (XFRAME (selected_frame)))
Karoly Lorentey's avatar
Karoly Lorentey committed
589 590
	  && FRAME_BACKGROUND_PIXEL (f) == 0
	  && FRAME_FOREGROUND_PIXEL (f) == 0)
591
	{
Karoly Lorentey's avatar
Karoly Lorentey committed
592 593
	  FRAME_BACKGROUND_PIXEL (f) = FACE_TTY_DEFAULT_BG_COLOR;
	  FRAME_FOREGROUND_PIXEL (f) = FACE_TTY_DEFAULT_FG_COLOR;
594 595
	}
    }
596 597
  else
    f->output_method = output_termcap;
598
#else
Karoly Lorentey's avatar
Karoly Lorentey committed
599 600
  {
    f->output_method = output_termcap;
601 602
    f->terminal = terminal;
    f->terminal->reference_count++;
603
    create_tty_output (f);
604

605 606
    FRAME_FOREGROUND_PIXEL (f) = FACE_TTY_DEFAULT_FG_COLOR;
    FRAME_BACKGROUND_PIXEL (f) = FACE_TTY_DEFAULT_BG_COLOR;
607

608 609 610 611
    FRAME_CAN_HAVE_SCROLL_BARS (f) = 0;
    FRAME_VERTICAL_SCROLL_BAR_TYPE (f) = vertical_scroll_bar_none;

    /* Set the top frame to the newly created frame. */
612
    if (FRAMEP (FRAME_TTY (f)->top_frame)
613 614
        && FRAME_LIVE_P (XFRAME (FRAME_TTY (f)->top_frame)))
      XFRAME (FRAME_TTY (f)->top_frame)->async_visible = 2; /* obscured */
615

616
    FRAME_TTY (f)->top_frame = frame;
Karoly Lorentey's avatar
Karoly Lorentey committed
617
  }
618

619 620 621 622
#ifdef CANNOT_DUMP
  FRAME_FOREGROUND_PIXEL(f) = FACE_TTY_DEFAULT_FG_COLOR;
  FRAME_BACKGROUND_PIXEL(f) = FACE_TTY_DEFAULT_BG_COLOR;
#endif
623
#endif /* MSDOS */
624

625 626
  if (!noninteractive)
    init_frame_faces (f);
627

Jim Blandy's avatar
Jim Blandy committed
628
  return f;
Jim Blandy's avatar
Jim Blandy committed
629
}
630

631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657
/* Get a suitable value for frame parameter PARAMETER for a newly
   created frame, based on (1) the user-supplied frame parameter
   alist SUPPLIED_PARMS, (2) CURRENT_VALUE, and finally, if all else
   fails, (3) Vdefault_frame_alist.  */

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))
    result = Fassq (parameter, Vdefault_frame_alist);
  if (!NILP (result) && !STRINGP (result))
    result = XCDR (result);
  if (NILP (result) || !STRINGP (result))
    result = Qnil;

  return result;
}

658
DEFUN ("make-terminal-frame", Fmake_terminal_frame, Smake_terminal_frame,
659
       1, 1, 0,
660
       doc: /* Create an additional terminal frame, possibly on another terminal.
661
This function takes one argument, an alist specifying frame parameters.
662 663 664 665 666 667 668 669 670 671 672

You can create multiple frames on a single text-only terminal, but
only one of them (the selected terminal frame) is actually displayed.

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")))

673 674
Note that changing the size of one terminal frame automatically
affects all frames on the same terminal device.  */)
675
     (parms)
676 677 678
     Lisp_Object parms;
{
  struct frame *f;
679
  struct terminal *t = NULL;
680
  Lisp_Object frame, tem;
681
  struct frame *sf = SELECTED_FRAME ();
682

683
#ifdef MSDOS
684 685
  if (sf->output_method != output_msdos_raw
      && sf->output_method != output_termcap)
686
    abort ();
687 688
#else /* not MSDOS */

Dan Nicolaescu's avatar
Dan Nicolaescu committed
689
#if 0
690 691
  /* This can happen for multi-tty when using both terminal frames and
     Carbon frames. */
692
  if (sf->output_method != output_mac)
693
    error ("Not running on a Macintosh screen; cannot make a new Macintosh frame");
694
#else
695
#if 0                           /* This should work now! */
696
  if (sf->output_method != output_termcap)
697
    error ("Not using an ASCII terminal now; cannot make a new ASCII frame");
698
#endif
699
#endif
700
#endif /* not MSDOS */
701

702
  {
703
    Lisp_Object terminal;
704

705 706
    terminal = Fassq (Qterminal, parms);
    if (!NILP (terminal))
707
      {
708 709
        terminal = XCDR (terminal);
        t = get_terminal (terminal, 1);
710 711
      }
  }
712

713
  if (!t)
714
    {
715
      char *name = 0, *type = 0;
716
      Lisp_Object tty, tty_type;
717

718 719 720 721 722
      tty = get_future_frame_param
        (Qtty, parms, (FRAME_TERMCAP_P (XFRAME (selected_frame))
                       ? FRAME_TTY (XFRAME (selected_frame))->name
                       : NULL));
      if (!NILP (tty))
723 724 725 726 727
        {
          name = (char *) alloca (SBYTES (tty) + 1);
          strncpy (name, SDATA (tty), SBYTES (tty));
          name[SBYTES (tty)] = 0;
        }
728

729 730 731 732 733
      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))
734 735 736 737 738 739
        {
          type = (char *) alloca (SBYTES (tty_type) + 1);
          strncpy (type, SDATA (tty_type), SBYTES (tty_type));
          type[SBYTES (tty_type)] = 0;
        }

740
      t = init_tty (name, type, 0); /* Errors are not fatal. */
741
    }
742

743
  f = make_terminal_frame (t);
744

745 746
  {
    int width, height;
747
    get_tty_size (fileno (FRAME_TTY (f)->input), &width, &height);
748 749
    change_frame_size (f, height, width, 0, 0, 0);
  }
750

751
  adjust_glyphs (f);
752 753
  calculate_costs (f);
  XSETFRAME (frame, f);
754
  Fmodify_frame_parameters (frame, Vdefault_frame_alist);
755
  Fmodify_frame_parameters (frame, parms);
756
  Fmodify_frame_parameters (frame, Fcons (Fcons (Qtty_type,
757
                                                 build_string (t->display_info.tty->type)),
758
                                          Qnil));
759 760 761 762 763 764
  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));
765

766 767
  /* Make the frame face alist be frame-specific, so that each
     frame could change its face definitions independently.  */
768
  f->face_alist = Fcopy_alist (sf->face_alist);
769 770 771 772
  /* 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))
773
    XSETCDR (XCAR (tem), Fcopy_sequence (XCDR (XCAR (tem))));
774 775
  return frame;
}
776

Jim Blandy's avatar
Jim Blandy committed
777

778 779 780 781 782 783 784 785 786 787
/* 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
788
   deleted, which includes the possibility that the frame's terminal
789 790
   is dead.  */

791
Lisp_Object
792 793 794
do_switch_frame (frame, track, for_deletion)
     Lisp_Object frame;
     int track, for_deletion;
Jim Blandy's avatar
Jim Blandy committed
795
{
796
  struct frame *sf = SELECTED_FRAME ();
797

798 799 800
  /* If FRAME is a switch-frame event, extract the frame we should
     switch to.  */
  if (CONSP (frame)
801 802 803
      && EQ (XCAR (frame), Qswitch_frame)
      && CONSP (XCDR (frame)))
    frame = XCAR (XCDR (frame));
804

805 806 807
  /* 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.  */
808
  CHECK_FRAME (frame);
809 810
  if (! FRAME_LIVE_P (XFRAME (frame)))
    return Qnil;
Jim Blandy's avatar
Jim Blandy committed
811

812
  if (sf == XFRAME (frame))
Jim Blandy's avatar
Jim Blandy committed
813
    return frame;
Jim Blandy's avatar
Jim Blandy committed
814

815 816 817
  /* This is too greedy; it causes inappropriate focus redirection
     that's hard to get rid of.  */
#if 0
818 819 820 821 822 823 824
  /* 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.  */
825 826 827
  if (track)
    {
      Lisp_Object tail;
828

829
      for (tail = Vframe_list; CONSP (tail); tail = XCDR (tail))
830 831
	{
	  Lisp_Object focus;
832

833
	  if (!FRAMEP (XCAR (tail)))
834
	    abort ();
835

836
	  focus = FRAME_FOCUS_FRAME (XFRAME (XCAR (tail)));
837

838
	  if (FRAMEP (focus) && XFRAME (focus) == SELECTED_FRAME ())
839
	    Fredirect_frame_focus (XCAR (tail), frame);
840 841 842 843
	}
    }
#else /* ! 0 */
  /* Instead, apply it only to the frame we're pointing to.  */
844
#ifdef HAVE_WINDOW_SYSTEM
845
  if (track && FRAME_WINDOW_P (XFRAME (frame)))
846 847 848
    {
      Lisp_Object focus, xfocus;

849
      xfocus = x_get_focus_frame (XFRAME (frame));
850 851 852
      if (FRAMEP (xfocus))
	{
	  focus = FRAME_FOCUS_FRAME (XFRAME (xfocus));
853
	  if (FRAMEP (focus) && XFRAME (focus) == SELECTED_FRAME ())
854 855 856 857 858
	    Fredirect_frame_focus (xfocus, frame);
	}
    }
#endif /* HAVE_X_WINDOWS */
#endif /* ! 0 */
859

860
  if (!for_deletion && FRAME_HAS_MINIBUF_P (sf))
861 862
    resize_mini_window (XWINDOW (FRAME_MINIBUF_WINDOW (sf)), 1);

863
  if (FRAME_TERMCAP_P (XFRAME (frame)))
864
    {
865 866 867
      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;
868 869 870 871
      XFRAME (frame)->async_visible = 1;
      FRAME_TTY (XFRAME (frame))->top_frame = frame;
    }

872 873 874
  selected_frame = frame;
  if (! FRAME_MINIBUF_ONLY_P (XFRAME (selected_frame)))
    last_nonminibuf_frame = XFRAME (selected_frame);
Jim Blandy's avatar
Jim Blandy committed
875

876
  Fselect_window (XFRAME (frame)->selected_window, Qnil);
Jim Blandy's avatar
Jim Blandy committed
877

878
  /* We want to make sure that the next event generates a frame-switch
879
     event to the appropriate frame.  This seems kludgy to me, but
880 881 882 883
     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.  */
884