frame.c 135 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, 2009, 2010 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
#include <setjmp.h>
25
#include "lisp.h"
26
#include "character.h"
27
#ifdef HAVE_X_WINDOWS
Andreas Schwab's avatar
Andreas Schwab committed
28
#include "xterm.h"
Karl Heuer's avatar
Karl Heuer committed
29
#endif
Andrew Innes's avatar
Andrew Innes committed
30 31 32
#ifdef WINDOWSNT
#include "w32term.h"
#endif
33 34 35
#ifdef HAVE_NS
#include "nsterm.h"
#endif
36 37 38 39
#include "buffer.h"
/* These help us bind and responding to switch-frame events.  */
#include "commands.h"
#include "keyboard.h"
40
#include "frame.h"
Kim F. Storm's avatar
Kim F. Storm committed
41
#include "blockinput.h"
42
#include "termchar.h"
43
#include "termhooks.h"
Andreas Schwab's avatar
Andreas Schwab committed
44
#include "dispextern.h"
45
#include "window.h"
46
#include "font.h"
Andreas Schwab's avatar
Andreas Schwab committed
47
#ifdef HAVE_WINDOW_SYSTEM
48 49
#include "fontset.h"
#endif
Morten Welinder's avatar
Morten Welinder committed
50 51
#ifdef MSDOS
#include "msdos.h"
52
#include "dosfns.h"
Morten Welinder's avatar
Morten Welinder committed
53
#endif
Jim Blandy's avatar
Jim Blandy committed
54

Kim F. Storm's avatar
Kim F. Storm committed
55

56 57 58
/* If we shall make pointer invisible when typing or not.  */
Lisp_Object Vmake_pointer_invisible;

59 60
#ifdef HAVE_WINDOW_SYSTEM

Kim F. Storm's avatar
Kim F. Storm committed
61 62 63 64 65 66 67 68 69
/* 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;

70 71 72 73
/* Lower limit value of the frame opacity (alpha transparency).  */

Lisp_Object Vframe_alpha_lower_limit;

74
#endif
Kim F. Storm's avatar
Kim F. Storm committed
75

Chong Yidong's avatar
Chong Yidong committed
76 77 78 79
#ifdef HAVE_NS
Lisp_Object Qns_parse_geometry;
#endif

Kim F. Storm's avatar
Kim F. Storm committed
80 81
Lisp_Object Qframep, Qframe_live_p;
Lisp_Object Qicon, Qmodeline;
82
Lisp_Object Qonly;
83
Lisp_Object Qx, Qw32, Qmac, Qpc, Qns;
84
Lisp_Object Qvisible;
85
Lisp_Object Qdisplay_type;
86
Lisp_Object Qbackground_mode;
87
Lisp_Object Qnoelisp;
Kim F. Storm's avatar
Kim F. Storm committed
88 89 90

Lisp_Object Qx_frame_parameter;
Lisp_Object Qx_resource_name;
91 92
Lisp_Object Qterminal;
Lisp_Object Qterminal_live_p;
Kim F. Storm's avatar
Kim F. Storm committed
93 94 95 96 97 98 99 100 101 102

/* 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;
103
Lisp_Object Qtooltip;
Kim F. Storm's avatar
Kim F. Storm committed
104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119
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;
120
Lisp_Object Qexplicit_name;
Kim F. Storm's avatar
Kim F. Storm committed
121 122
Lisp_Object Qunsplittable;
Lisp_Object Qmenu_bar_lines, Qtool_bar_lines;
123
Lisp_Object Vmenu_bar_mode, Vtool_bar_mode;
Kim F. Storm's avatar
Kim F. Storm committed
124
Lisp_Object Qleft_fringe, Qright_fringe;
125
Lisp_Object Qbuffer_predicate, Qbuffer_list, Qburied_buffer_list;
126
Lisp_Object Qtty_color_mode;
127
Lisp_Object Qtty, Qtty_type;
Jim Blandy's avatar
Jim Blandy committed
128

129
Lisp_Object Qfullscreen, Qfullwidth, Qfullheight, Qfullboth, Qmaximized;
130
Lisp_Object Qsticky;
Kenichi Handa's avatar
Kenichi Handa committed
131
Lisp_Object Qfont_backend;
132
Lisp_Object Qalpha;
Kim F. Storm's avatar
Kim F. Storm committed
133 134 135

Lisp_Object Qface_set_after_frame_default;

136
Lisp_Object Vterminal_frame;
137
Lisp_Object Vdefault_frame_alist;
Kenichi Handa's avatar
Kenichi Handa committed
138
Lisp_Object Vdefault_frame_scroll_bars;
139
Lisp_Object Vmouse_position_function;
140
Lisp_Object Vmouse_highlight;
141
static Lisp_Object Vdelete_frame_functions, Qdelete_frame_functions;
142 143

int focus_follows_mouse;
144 145

static void
146
set_menu_bar_lines_1 (Lisp_Object window, int n)
147 148 149
{
  struct window *w = XWINDOW (window);

150
  XSETFASTINT (w->last_modified, 0);
151 152
  XSETFASTINT (w->top_line, XFASTINT (w->top_line) + n);
  XSETFASTINT (w->total_lines, XFASTINT (w->total_lines) - n);
153

154 155 156 157
  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);
158 159 160 161 162 163 164 165 166 167 168 169 170

  /* 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);
    }
}

171
void
172
set_menu_bar_lines (struct frame *f, Lisp_Object value, Lisp_Object oldval)
173 174 175 176 177 178
{
  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
179
     frame itself, and get an error because you can't switch buffers
180 181 182 183 184 185 186 187 188
     in or split the minibuffer window.  */
  if (FRAME_MINIBUF_ONLY_P (f))
    return;

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

189 190 191 192 193 194
  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);
195
      adjust_glyphs (f);
196
    }
197 198 199 200
}

Lisp_Object Vframe_list;

Jim Blandy's avatar
Jim Blandy committed
201
extern Lisp_Object Vminibuffer_list;
202 203 204
extern Lisp_Object get_minibuffer (int);
extern Lisp_Object Fhandle_switch_frame (Lisp_Object event);
extern Lisp_Object Fredirect_frame_focus (Lisp_Object frame, Lisp_Object focus_frame);
205
extern Lisp_Object x_get_focus_frame (struct frame *frame);
206 207
extern Lisp_Object QCname, Qfont_param;

Jim Blandy's avatar
Jim Blandy committed
208

Jim Blandy's avatar
Jim Blandy committed
209
DEFUN ("framep", Fframep, Sframep, 1, 1, 0,
210 211 212 213
       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,
214
`ns' for an Emacs frame on a GNUstep or Macintosh Cocoa display,
215 216
`pc' for a direct-write MS-DOS frame.
See also `frame-live-p'.  */)
Dan Nicolaescu's avatar
Dan Nicolaescu committed
217
  (Lisp_Object object)
Jim Blandy's avatar
Jim Blandy committed
218
{
219
  if (!FRAMEP (object))
Jim Blandy's avatar
Jim Blandy committed
220
    return Qnil;
Jim Blandy's avatar
Jim Blandy committed
221
  switch (XFRAME (object)->output_method)
Jim Blandy's avatar
Jim Blandy committed
222
    {
223
    case output_initial: /* The initial frame is like a termcap frame. */
Jim Blandy's avatar
Jim Blandy committed
224 225 226
    case output_termcap:
      return Qt;
    case output_x_window:
227
      return Qx;
228 229
    case output_w32:
      return Qw32;
230 231
    case output_msdos_raw:
      return Qpc;
232 233
    case output_mac:
      return Qmac;
234 235
    case output_ns:
      return Qns;
Jim Blandy's avatar
Jim Blandy committed
236 237 238 239 240
    default:
      abort ();
    }
}

Jim Blandy's avatar
Jim Blandy committed
241
DEFUN ("frame-live-p", Fframe_live_p, Sframe_live_p, 1, 1, 0,
242 243
       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
244
frame, the return value indicates what sort of terminal device it is
Pavel Janík's avatar
Pavel Janík committed
245
displayed on.  See the documentation of `framep' for possible
Pavel Janík's avatar
Pavel Janík committed
246
return values.  */)
Dan Nicolaescu's avatar
Dan Nicolaescu committed
247
  (Lisp_Object object)
Jim Blandy's avatar
Jim Blandy committed
248
{
Jim Blandy's avatar
Jim Blandy committed
249 250 251
  return ((FRAMEP (object)
	   && FRAME_LIVE_P (XFRAME (object)))
	  ? Fframep (object)
Jim Blandy's avatar
Jim Blandy committed
252 253 254
	  : Qnil);
}

255 256 257 258 259 260
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.  */)
Dan Nicolaescu's avatar
Dan Nicolaescu committed
261
  (Lisp_Object frame)
262 263 264 265 266 267 268 269 270 271 272 273 274 275
{
  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;
276
}
277

Jim Blandy's avatar
Jim Blandy committed
278
struct frame *
279
make_frame (int mini_p)
Jim Blandy's avatar
Jim Blandy committed
280
{
Jim Blandy's avatar
Jim Blandy committed
281 282
  Lisp_Object frame;
  register struct frame *f;
Jim Blandy's avatar
Jim Blandy committed
283 284
  register Lisp_Object root_window;
  register Lisp_Object mini_window;
285 286

  f = allocate_frame ();
287
  XSETFRAME (frame, f);
Jim Blandy's avatar
Jim Blandy committed
288

289 290 291 292 293 294
  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
295
  f->visible = 0;
296
  f->async_visible = 0;
297
  f->output_data.nothing = 0;
Jim Blandy's avatar
Jim Blandy committed
298
  f->iconified = 0;
299
  f->async_iconified = 0;
Jim Blandy's avatar
Jim Blandy committed
300 301 302 303
  f->wants_modeline = 1;
  f->auto_raise = 0;
  f->auto_lower = 0;
  f->no_split = 0;
304
  f->garbaged = 1;
Jim Blandy's avatar
Jim Blandy committed
305
  f->has_minibuffer = mini_p;
306
  f->focus_frame = Qnil;
307
  f->explicit_name = 0;
308
  f->can_have_scroll_bars = 0;
309
  f->vertical_scroll_bar_type = vertical_scroll_bar_none;
Jim Blandy's avatar
Jim Blandy committed
310
  f->param_alist = Qnil;
311 312
  f->scroll_bars = Qnil;
  f->condemned_scroll_bars = Qnil;
313
  f->face_alist = Qnil;
314
  f->face_cache = NULL;
315
  f->menu_bar_items = Qnil;
316 317
  f->menu_bar_vector = Qnil;
  f->menu_bar_items_used = 0;
318
  f->buffer_predicate = Qnil;
319
  f->buffer_list = Qnil;
320
  f->buried_buffer_list = Qnil;
321
  f->namebuf = 0;
322
  f->title = Qnil;
323
  f->menu_bar_window = Qnil;
324
  f->tool_bar_window = Qnil;
325
  f->tool_bar_items = Qnil;
326
  f->desired_tool_bar_string = f->current_tool_bar_string = Qnil;
327
  f->n_tool_bar_items = 0;
328 329
  f->left_fringe_width = f->right_fringe_width = 0;
  f->fringe_cols = 0;
330 331
  f->menu_bar_lines = 0;
  f->tool_bar_lines = 0;
332 333 334 335 336 337
  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;
338
#ifdef HAVE_WINDOW_SYSTEM
339
  f->want_fullscreen = FULLSCREEN_NONE;
340
#endif
341 342
  f->size_hint_flags = 0;
  f->win_gravity = 0;
Kenichi Handa's avatar
Kenichi Handa committed
343
  f->font_driver_list = NULL;
344
  f->font_data_list = NULL;
Jim Blandy's avatar
Jim Blandy committed
345

346
  root_window = make_window ();
Jim Blandy's avatar
Jim Blandy committed
347 348
  if (mini_p)
    {
349
      mini_window = make_window ();
Jim Blandy's avatar
Jim Blandy committed
350 351 352
      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
353 354
      XWINDOW (mini_window)->frame = frame;
      f->minibuffer_window = mini_window;
Jim Blandy's avatar
Jim Blandy committed
355 356 357 358 359
    }
  else
    {
      mini_window = Qnil;
      XWINDOW (root_window)->next = Qnil;
Jim Blandy's avatar
Jim Blandy committed
360
      f->minibuffer_window = Qnil;
Jim Blandy's avatar
Jim Blandy committed
361 362
    }

Jim Blandy's avatar
Jim Blandy committed
363
  XWINDOW (root_window)->frame = frame;
Jim Blandy's avatar
Jim Blandy committed
364 365 366

  /* 10 is arbitrary,
     just so that there is "something there."
Jim Blandy's avatar
Jim Blandy committed
367
     Correct size will be set up later with change_frame_size.  */
Jim Blandy's avatar
Jim Blandy committed
368

369 370
  SET_FRAME_COLS (f, 10);
  FRAME_LINES (f) = 10;
Jim Blandy's avatar
Jim Blandy committed
371

372 373
  XSETFASTINT (XWINDOW (root_window)->total_cols, 10);
  XSETFASTINT (XWINDOW (root_window)->total_lines, (mini_p ? 9 : 10));
Jim Blandy's avatar
Jim Blandy committed
374 375 376

  if (mini_p)
    {
377 378 379
      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
380 381
    }

Jim Blandy's avatar
Jim Blandy committed
382
  /* Choose a buffer for the frame's root window.  */
Jim Blandy's avatar
Jim Blandy committed
383 384 385 386 387 388 389
  {
    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.  */
390
    if (SREF (Fbuffer_name (buf), 0) == ' ')
391
      buf = Fother_buffer (buf, Qnil, Qnil);
392

393 394 395 396 397 398
    /* 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.  */
399
    set_window_buffer (root_window, buf, 0, 0);
400
    f->buffer_list = Fcons (buf, Qnil);
Jim Blandy's avatar
Jim Blandy committed
401 402
  }

Jim Blandy's avatar
Jim Blandy committed
403 404 405
  if (mini_p)
    {
      XWINDOW (mini_window)->buffer = Qt;
406 407 408 409
      set_window_buffer (mini_window,
			 (NILP (Vminibuffer_list)
			  ? get_minibuffer (0)
			  : Fcar (Vminibuffer_list)),
410
			 0, 0);
Jim Blandy's avatar
Jim Blandy committed
411 412
    }

Jim Blandy's avatar
Jim Blandy committed
413 414
  f->root_window = root_window;
  f->selected_window = root_window;
Jim Blandy's avatar
Jim Blandy committed
415 416
  /* Make sure this window seems more recently used than
     a newly-created, never-selected window.  */
417 418
  ++window_select_count;
  XSETFASTINT (XWINDOW (f->selected_window)->use_time, window_select_count);
Jim Blandy's avatar
Jim Blandy committed
419

420 421
  f->default_face_done_p = 0;

Jim Blandy's avatar
Jim Blandy committed
422
  return f;
Jim Blandy's avatar
Jim Blandy committed
423 424
}

425
#ifdef HAVE_WINDOW_SYSTEM
Jim Blandy's avatar
Jim Blandy committed
426
/* Make a frame using a separate minibuffer window on another frame.
Jim Blandy's avatar
Jim Blandy committed
427 428 429
   MINI_WINDOW is the minibuffer window to use.  nil means use the
   default (the global minibuffer).  */

Jim Blandy's avatar
Jim Blandy committed
430
struct frame *
431
make_frame_without_minibuffer (register Lisp_Object mini_window, KBOARD *kb, Lisp_Object display)
Jim Blandy's avatar
Jim Blandy committed
432
{
Jim Blandy's avatar
Jim Blandy committed
433
  register struct frame *f;
434
  struct gcpro gcpro1;
Jim Blandy's avatar
Jim Blandy committed
435

436
  if (!NILP (mini_window))
437
    CHECK_LIVE_WINDOW (mini_window);
Jim Blandy's avatar
Jim Blandy committed
438

439
  if (!NILP (mini_window)
440 441
      && FRAME_KBOARD (XFRAME (XWINDOW (mini_window)->frame)) != kb)
    error ("Frame and minibuffer must be on the same terminal");
442

Jim Blandy's avatar
Jim Blandy committed
443 444
  /* Make a frame containing just a root window.  */
  f = make_frame (0);
Jim Blandy's avatar
Jim Blandy committed
445

446 447 448 449 450 451
  if (NILP (mini_window))
    {
      /* Use default-minibuffer-frame if possible.  */
      if (!FRAMEP (kb->Vdefault_minibuffer_frame)
	  || ! FRAME_LIVE_P (XFRAME (kb->Vdefault_minibuffer_frame)))
	{
452 453 454 455
          Lisp_Object frame_dummy;

          XSETFRAME (frame_dummy, f);
          GCPRO1 (frame_dummy);
456
	  /* If there's no minibuffer frame to use, create one.  */
457 458 459
	  kb->Vdefault_minibuffer_frame =
	    call1 (intern ("make-initial-minibuffer-frame"), display);
          UNGCPRO;
460
	}
461

462 463
      mini_window = XFRAME (kb->Vdefault_minibuffer_frame)->minibuffer_window;
    }
464

Jim Blandy's avatar
Jim Blandy committed
465
  f->minibuffer_window = mini_window;
466 467 468 469 470 471 472

  /* 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)
473
			 : Fcar (Vminibuffer_list)), Qnil);
Jim Blandy's avatar
Jim Blandy committed
474
  return f;
Jim Blandy's avatar
Jim Blandy committed
475 476
}

Jim Blandy's avatar
Jim Blandy committed
477
/* Make a frame containing only a minibuffer window.  */
Jim Blandy's avatar
Jim Blandy committed
478

Jim Blandy's avatar
Jim Blandy committed
479
struct frame *
480
make_minibuffer_frame (void)
Jim Blandy's avatar
Jim Blandy committed
481
{
Jim Blandy's avatar
Jim Blandy committed
482
  /* First make a frame containing just a root window, no minibuffer.  */
Jim Blandy's avatar
Jim Blandy committed
483

Jim Blandy's avatar
Jim Blandy committed
484
  register struct frame *f = make_frame (0);
Jim Blandy's avatar
Jim Blandy committed
485
  register Lisp_Object mini_window;
Jim Blandy's avatar
Jim Blandy committed
486
  register Lisp_Object frame;
Jim Blandy's avatar
Jim Blandy committed
487

488
  XSETFRAME (frame, f);
Jim Blandy's avatar
Jim Blandy committed
489

490
  f->auto_raise = 0;
Jim Blandy's avatar
Jim Blandy committed
491 492 493 494
  f->auto_lower = 0;
  f->no_split = 1;
  f->wants_modeline = 0;
  f->has_minibuffer = 1;
Jim Blandy's avatar
Jim Blandy committed
495 496 497 498 499

  /* 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
500
  mini_window = f->minibuffer_window = f->root_window;
Jim Blandy's avatar
Jim Blandy committed
501 502
  XWINDOW (mini_window)->mini_p = Qt;
  XWINDOW (mini_window)->next = Qnil;
503
  XWINDOW (mini_window)->prev = Qnil;
Jim Blandy's avatar
Jim Blandy committed
504
  XWINDOW (mini_window)->frame = frame;
Jim Blandy's avatar
Jim Blandy committed
505 506 507 508

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

  Fset_window_buffer (mini_window,
Jim Blandy's avatar
Jim Blandy committed
509
		      (NILP (Vminibuffer_list)
Jim Blandy's avatar
Jim Blandy committed
510
		       ? get_minibuffer (0)
511
		       : Fcar (Vminibuffer_list)), Qnil);
Jim Blandy's avatar
Jim Blandy committed
512
  return f;
Jim Blandy's avatar
Jim Blandy committed
513
}
514
#endif /* HAVE_WINDOW_SYSTEM */
Jim Blandy's avatar
Jim Blandy committed
515

516
/* Construct a frame that refers to a terminal.  */
Jim Blandy's avatar
Jim Blandy committed
517

518
static int tty_frame_count;
519

Jim Blandy's avatar
Jim Blandy committed
520
struct frame *
521
make_initial_frame (void)
Jim Blandy's avatar
Jim Blandy committed
522
{
523
  struct frame *f;
524
  struct terminal *terminal;
525
  Lisp_Object frame;
526

527
  eassert (initial_kboard);
528

529 530 531
  /* The first call must initialize Vframe_list.  */
  if (! (NILP (Vframe_list) || CONSP (Vframe_list)))
    Vframe_list = Qnil;
Jim Blandy's avatar
Jim Blandy committed
532

533
  terminal = init_initial_terminal ();
534 535 536 537 538 539

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

  Vframe_list = Fcons (frame, Vframe_list);

540
  tty_frame_count = 1;
541
  f->name = make_pure_c_string ("F1");
542 543 544 545

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

546 547 548
  f->output_method = terminal->type;
  f->terminal = terminal;
  f->terminal->reference_count++;
549
  f->output_data.nothing = 0;
550

551 552
  FRAME_FOREGROUND_PIXEL (f) = FACE_TTY_DEFAULT_FG_COLOR;
  FRAME_BACKGROUND_PIXEL (f) = FACE_TTY_DEFAULT_BG_COLOR;
553

554 555
  FRAME_CAN_HAVE_SCROLL_BARS (f) = 0;
  FRAME_VERTICAL_SCROLL_BAR_TYPE (f) = vertical_scroll_bar_none;
556
  FRAME_MENU_BAR_LINES(f) = NILP (Vmenu_bar_mode) ? 0 : 1;
557

558 559 560 561 562
#ifdef CANNOT_DUMP
  if (!noninteractive)
    init_frame_faces (f);
#endif

563 564 565 566 567
  return f;
}


struct frame *
568
make_terminal_frame (struct terminal *terminal)
569 570 571 572
{
  register struct frame *f;
  Lisp_Object frame;
  char name[20];
573

574 575
  if (!terminal->name)
    error ("Terminal is not live, can't create new frames on it");
576

Jim Blandy's avatar
Jim Blandy committed
577
  f = make_frame (1);
578

579
  XSETFRAME (frame, f);
580 581
  Vframe_list = Fcons (frame, Vframe_list);

582 583
  tty_frame_count++;
  sprintf (name, "F%d", tty_frame_count);
584
  f->name = build_string (name);
585 586 587

  f->visible = 1;		/* FRAME_SET_VISIBLE wd set frame_garbaged. */
  f->async_visible = 1;		/* Don't let visible be cleared later. */
588 589
  f->terminal = terminal;
  f->terminal->reference_count++;
590
#ifdef MSDOS
591
  f->output_data.tty->display_info = &the_only_display_info;
592 593 594
  if (!inhibit_window_system
      && (!FRAMEP (selected_frame) || !FRAME_LIVE_P (XFRAME (selected_frame))
	  || XFRAME (selected_frame)->output_method == output_msdos_raw))
595
    f->output_method = output_msdos_raw;
596 597
  else
    f->output_method = output_termcap;
598 599 600 601 602 603
#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 */
604

605 606
  FRAME_CAN_HAVE_SCROLL_BARS (f) = 0;
  FRAME_VERTICAL_SCROLL_BAR_TYPE (f) = vertical_scroll_bar_none;
607
  FRAME_MENU_BAR_LINES(f) = NILP (Vmenu_bar_mode) ? 0 : 1;
608 609 610 611 612 613 614 615

  /* 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;

616 617
  if (!noninteractive)
    init_frame_faces (f);
618

Jim Blandy's avatar
Jim Blandy committed
619
  return f;
Jim Blandy's avatar
Jim Blandy committed
620
}
621

622 623
/* Get a suitable value for frame parameter PARAMETER for a newly
   created frame, based on (1) the user-supplied frame parameter
624
   alist SUPPLIED_PARMS, and (2) CURRENT_VALUE.  */
625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645

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;
}

646
DEFUN ("make-terminal-frame", Fmake_terminal_frame, Smake_terminal_frame,
647
       1, 1, 0,
648
       doc: /* Create an additional terminal frame, possibly on another terminal.
649
This function takes one argument, an alist specifying frame parameters.
650 651 652 653 654 655 656 657 658 659 660

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")))

661 662
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
663
  (Lisp_Object parms)
664 665
{
  struct frame *f;
666
  struct terminal *t = NULL;
667
  Lisp_Object frame, tem;
668
  struct frame *sf = SELECTED_FRAME ();
669

670
#ifdef MSDOS
671 672
  if (sf->output_method != output_msdos_raw
      && sf->output_method != output_termcap)
673
    abort ();
674 675
#else /* not MSDOS */

676
#ifdef WINDOWSNT                           /* This should work now! */
677
  if (sf->output_method != output_termcap)
678
    error ("Not using an ASCII terminal now; cannot make a new ASCII frame");
679
#endif
680
#endif /* not MSDOS */
681

682
  {
683
    Lisp_Object terminal;
684

685 686
    terminal = Fassq (Qterminal, parms);
    if (!NILP (terminal))
687
      {
688 689
        terminal = XCDR (terminal);
        t = get_terminal (terminal, 1);
690
      }
691 692 693 694 695 696 697
#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
698
  }
699

700
  if (!t)
701
    {
702
      char *name = 0, *type = 0;
703
      Lisp_Object tty, tty_type;
704

705 706 707 708 709
      tty = get_future_frame_param
        (Qtty, parms, (FRAME_TERMCAP_P (XFRAME (selected_frame))
                       ? FRAME_TTY (XFRAME (selected_frame))->name
                       : NULL));
      if (!NILP (tty))
710 711 712 713 714
        {
          name = (char *) alloca (SBYTES (tty) + 1);
          strncpy (name, SDATA (tty), SBYTES (tty));
          name[SBYTES (tty)] = 0;
        }
715

716 717 718 719 720
      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))
721 722 723 724 725 726
        {
          type = (char *) alloca (SBYTES (tty_type) + 1);
          strncpy (type, SDATA (tty_type), SBYTES (tty_type));
          type[SBYTES (tty_type)] = 0;
        }

727
      t = init_tty (name, type, 0); /* Errors are not fatal. */
728
    }
729

730
  f = make_terminal_frame (t);
731

732 733
  {
    int width, height;
734
    get_tty_size (fileno (FRAME_TTY (f)->input), &width, &height);
735 736
    change_frame_size (f, height, width, 0, 0, 0);
  }
737

738
  adjust_glyphs (f);
739 740 741
  calculate_costs (f);
  XSETFRAME (frame, f);
  Fmodify_frame_parameters (frame, parms);
742
  Fmodify_frame_parameters (frame, Fcons (Fcons (Qtty_type,
743
                                                 build_string (t->display_info.tty->type)),
744
                                          Qnil));
745 746 747 748 749 750
  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));
751

752 753
  /* Make the frame face alist be frame-specific, so that each
     frame could change its face definitions independently.  */
754
  f->face_alist = Fcopy_alist (sf->face_alist);
755 756 757 758
  /* 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))
759
    XSETCDR (XCAR (tem), Fcopy_sequence (XCDR (XCAR (tem))));
760 761
  return frame;
}
762

Jim Blandy's avatar
Jim Blandy committed
763

764 765 766 767 768 769 770 771 772 773
/* 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
774
   deleted, which includes the possibility that the frame's terminal
775 776 777
   is dead.

   The value of NORECORD is passed as argument to Fselect_window.  */
778

779
Lisp_Object
780
do_switch_frame (Lisp_Object frame, int track, int for_deletion, Lisp_Object norecord)
Jim Blandy's avatar
Jim Blandy committed
781
{
782
  struct frame *sf = SELECTED_FRAME ();
783

784 785 786
  /* If FRAME is a switch-frame event, extract the frame we should
     switch to.  */
  if (CONSP (frame)
787 788 789
      && EQ (XCAR (frame), Qswitch_frame)
      && CONSP (XCDR (frame)))
    frame = XCAR (XCDR (frame));
790

791 792 793
  /* 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.  */
794
  CHECK_FRAME (frame);
795 796
  if (! FRAME_LIVE_P (XFRAME (frame)))
    return Qnil;
Jim Blandy's avatar
Jim Blandy committed
797

798
  if (sf == XFRAME (frame))
Jim Blandy's avatar
Jim Blandy committed
799
    return frame;
Jim Blandy's avatar
Jim Blandy committed
800

801 802 803
  /* This is too greedy; it causes inappropriate focus redirection
     that's hard to get rid of.  */
#if 0
804 805 806 807 808 809 810
  /* 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.  */
811 812 813
  if (track)
    {
      Lisp_Object tail;
814

815
      for (tail = Vframe_list; CONSP (tail); tail = XCDR (tail))
816 817
	{
	  Lisp_Object focus;
818

819
	  if (!FRAMEP (XCAR (tail)))
820
	    abort ();
821

822
	  focus = FRAME_FOCUS_FRAME (XFRAME (XCAR (tail)));
823

824
	  if (FRAMEP (focus) && XFRAME (focus) == SELECTED_FRAME ())
825
	    Fredirect_frame_focus (XCAR (tail), frame);
826 827 828 829
	}
    }
#else /* ! 0 */
  /* Instead, apply it only to the frame we're pointing to.  */
830
#ifdef HAVE_WINDOW_SYSTEM
831
  if (track && FRAME_WINDOW_P (XFRAME (frame)))
832 833 834
    {
      Lisp_Object focus, xfocus;

835
      xfocus = x_get_focus_frame (XFRAME (frame));
836 837 838
      if (FRAMEP (xfocus))
	{
	  focus = FRAME_FOCUS_FRAME (XFRAME (xfocus));
839
	  if (FRAMEP (focus) && XFRAME (focus) == SELECTED_FRAME ())
840 841 842 843 844
	    Fredirect_frame_focus (xfocus, frame);
	}
    }
#endif /* HAVE_X_WINDOWS */
#endif /* ! 0 */
845

846
  if (!for_deletion && FRAME_HAS_MINIBUF_P (sf))
847 848
    resize_mini_window (XWINDOW (FRAME_MINIBUF_WINDOW (sf)), 1);

849
  if (FRAME_TERMCAP_P (XFRAME (frame)) || FRAME_MSDOS_P (XFRAME (frame)))
850
    {
851 852 853
      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;
854 855 856 857
      XFRAME (frame)->async_visible = 1;
      FRAME_TTY (XFRAME (frame))->top_frame = frame;
    }

858 859 860
  selected_frame = frame;
  if (! FRAME_MINIBUF_ONLY_P (XFRAME (selected_frame)))
    last_nonminibuf_frame = XFRAME (selected_frame);
Jim Blandy's avatar
Jim Blandy committed
861

862
  Fselect_window (XFRAME (frame)->selected_window, norecord);
Jim Blandy's avatar
Jim Blandy committed
863

864
  /* We want to make sure that the next event generates a frame-switch
865
     event to the appropriate frame.  This seems kludgy to me, but
866 867 868 869
     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.  */
870
  internal_last_event_frame = Qnil;
871

Jim Blandy's avatar
Jim Blandy committed
872
  return frame;
Jim Blandy's avatar
Jim Blandy committed
873 874
}

875 876
DEFUN ("select-frame", Fselect_frame, Sselect_frame, 1, 2, "e",
       doc: /* Select FRAME.
877
Subsequent editing commands apply to its selected window.
878 879 880
Optional argument NORECORD means to neither change the order of
recently selected windows nor the buffer list.

881
The selection of FRAME lasts until the next time the user does
882 883 884
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
885 886
when returning to the command loop, because it still may have
the window system's input focus.  On a text-only terminal, the
887
next redisplay will display FRAME.
888 889

This function returns FRAME, or nil if FRAME has been deleted.  */)
Dan Nicolaescu's avatar
Dan Nicolaescu committed
890
  (Lisp_Object frame, Lisp_Object norecord)
891
{
892
  return do_switch_frame (frame, 1, 0, norecord);
893 894 895
}


896
DEFUN ("handle-switch-frame", Fhandle_switch_frame, Shandle_switch_frame, 1, 1, "e",
897 898 899 900 901 902 903 904
       doc: /* Handle a switch-frame event EVENT.
Switch-frame events are usually bound to this function.
A switch-frame event tells Emacs that the window manager has requested
that the user's events be directed to the frame mentioned in the event.
This function selects the selected window of the frame of EVENT.

If EVENT is frame object, handle it as if it were a switch-frame event
to that frame.  */)
Dan Nicolaescu's avatar
Dan Nicolaescu committed
905
  (Lisp_Object event)
906
{
907 908
  /* Preserve prefix arg that the command loop just cleared.  */
  current_kboard->Vprefix_arg = Vcurrent_prefix_arg;
909
  call1 (Vrun_hooks, Qmouse_leave_buffer_hook);
910
  return do_switch_frame (event, 0, 0, Qnil);
911 912
}

Jim Blandy's avatar
Jim Blandy committed
913
DEFUN ("selected-frame", Fselected_frame, Sselected_frame, 0, 0, 0,
914
       doc: /* Return the frame that is now selected.  */)
Dan Nicolaescu's avatar
Dan Nicolaescu committed
915
  (void)
Jim Blandy's avatar
Jim Blandy committed
916
{
917
  return selected_frame;
Jim Blandy's avatar
Jim Blandy committed
918
}
919

Jim Blandy's avatar
Jim Blandy committed
920
DEFUN ("window-frame", Fwindow_frame, Swindow_frame, 1, 1, 0,
921
       doc: /* Return the frame object that window WINDOW is on.  */)
Dan Nicolaescu's avatar
Dan Nicolaescu committed
922
  (Lisp_Object window)
Jim Blandy's avatar
Jim Blandy committed
923
{
924
  CHECK_LIVE_WINDOW (window);