frame.c 32.5 KB
Newer Older
Jim Blandy's avatar
Jim Blandy committed
1

Jim Blandy's avatar
Jim Blandy committed
2
/* Generic frame functions.
Jim Blandy's avatar
Jim Blandy committed
3
   Copyright (C) 1989, 1992 Free Software Foundation.
Jim Blandy's avatar
Jim Blandy committed
4 5 6 7 8

This file is part of GNU Emacs.

GNU Emacs is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
Jim Blandy's avatar
Jim Blandy committed
9
the Free Software Foundation; either version 2, or (at your option)
Jim Blandy's avatar
Jim Blandy committed
10 11 12 13 14 15 16 17 18 19 20
any later version.

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
along with GNU Emacs; see the file COPYING.  If not, write to
the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */

Jim Blandy's avatar
Jim Blandy committed
21 22
#include <stdio.h>

Jim Blandy's avatar
Jim Blandy committed
23
#include "config.h"
Jim Blandy's avatar
Jim Blandy committed
24

Jim Blandy's avatar
Jim Blandy committed
25
#ifdef MULTI_FRAME
Jim Blandy's avatar
Jim Blandy committed
26

Jim Blandy's avatar
Jim Blandy committed
27
#include "lisp.h"
Jim Blandy's avatar
Jim Blandy committed
28
#include "frame.h"
Jim Blandy's avatar
Jim Blandy committed
29
#include "window.h"
Jim Blandy's avatar
Jim Blandy committed
30
#include "termhooks.h"
Jim Blandy's avatar
Jim Blandy committed
31 32

Lisp_Object Vemacs_iconified;
Jim Blandy's avatar
Jim Blandy committed
33 34 35 36 37 38
Lisp_Object Qframep;
Lisp_Object Qlive_frame_p;
Lisp_Object Vframe_list;
Lisp_Object Vterminal_frame;
Lisp_Object Vdefault_minibuffer_frame;
Lisp_Object Vdefault_frame_alist;
Jim Blandy's avatar
Jim Blandy committed
39
Lisp_Object Qminibuffer;
Jim Blandy's avatar
Jim Blandy committed
40 41 42 43

extern Lisp_Object Vminibuffer_list;
extern Lisp_Object get_minibuffer ();

Jim Blandy's avatar
Jim Blandy committed
44 45 46 47 48
DEFUN ("framep", Fframep, Sframep, 1, 1, 0,
  "Return non-nil if OBJECT is a frame.\n\
Value is t for a termcap frame (a character-only terminal),\n\
`x' for an Emacs frame that is really an X window.\n\
Also see `live-frame-p'.")
Jim Blandy's avatar
Jim Blandy committed
49 50
  (object)
     Lisp_Object object;
Jim Blandy's avatar
Jim Blandy committed
51
{
Jim Blandy's avatar
Jim Blandy committed
52
  if (XTYPE (object) != Lisp_Frame)
Jim Blandy's avatar
Jim Blandy committed
53
    return Qnil;
Jim Blandy's avatar
Jim Blandy committed
54
  switch (XFRAME (object)->output_method)
Jim Blandy's avatar
Jim Blandy committed
55 56 57 58 59 60 61 62 63 64
    {
    case output_termcap:
      return Qt;
    case output_x_window:
      return intern ("x");
    default:
      abort ();
    }
}

Jim Blandy's avatar
Jim Blandy committed
65 66 67 68 69 70
DEFUN ("live-frame-p", Flive_frame_p, Slive_frame_p, 1, 1, 0,
  "Return non-nil if OBJECT is a frame which has not been deleted.\n\
Value is nil if OBJECT is not a live frame.  If object is a live\n\
frame, the return value indicates what sort of output device it is\n\
displayed on.  Value is t for a termcap frame (a character-only\n\
terminal), `x' for an Emacs frame being displayed in an X window.")
Jim Blandy's avatar
Jim Blandy committed
71 72 73
  (object)
     Lisp_Object object;
{
Jim Blandy's avatar
Jim Blandy committed
74 75 76
  return ((FRAMEP (object)
	   && FRAME_LIVE_P (XFRAME (object)))
	  ? Fframep (object)
Jim Blandy's avatar
Jim Blandy committed
77 78 79
	  : Qnil);
}

Jim Blandy's avatar
Jim Blandy committed
80 81
struct frame *
make_frame (mini_p)
Jim Blandy's avatar
Jim Blandy committed
82 83
     int mini_p;
{
Jim Blandy's avatar
Jim Blandy committed
84 85
  Lisp_Object frame;
  register struct frame *f;
Jim Blandy's avatar
Jim Blandy committed
86 87 88
  register Lisp_Object root_window;
  register Lisp_Object mini_window;

Jim Blandy's avatar
Jim Blandy committed
89
  frame = Fmake_vector (((sizeof (struct frame) - (sizeof (Lisp_Vector)
Jim Blandy's avatar
Jim Blandy committed
90 91
						     - sizeof (Lisp_Object)))
			  / sizeof (Lisp_Object)),
Jim Blandy's avatar
Jim Blandy committed
92
			 make_number (0));
Jim Blandy's avatar
Jim Blandy committed
93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111
  XSETTYPE (frame, Lisp_Frame);
  f = XFRAME (frame);

  f->cursor_x = 0;
  f->cursor_y = 0;
  f->current_glyphs = 0;
  f->desired_glyphs = 0;
  f->visible = 0;
  f->display.nothing = 0;
  f->iconified = 0;
  f->wants_modeline = 1;
  f->auto_raise = 0;
  f->auto_lower = 0;
  f->no_split = 0;
  f->garbaged = 0;
  f->has_minibuffer = mini_p;
  f->focus_frame = frame;

  f->param_alist = Qnil;
Jim Blandy's avatar
Jim Blandy committed
112 113 114 115 116 117 118 119

  root_window = make_window (0);
  if (mini_p)
    {
      mini_window = make_window (0);
      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
120 121
      XWINDOW (mini_window)->frame = frame;
      f->minibuffer_window = mini_window;
Jim Blandy's avatar
Jim Blandy committed
122 123 124 125 126
    }
  else
    {
      mini_window = Qnil;
      XWINDOW (root_window)->next = Qnil;
Jim Blandy's avatar
Jim Blandy committed
127
      f->minibuffer_window = Qnil;
Jim Blandy's avatar
Jim Blandy committed
128 129
    }

Jim Blandy's avatar
Jim Blandy committed
130
  XWINDOW (root_window)->frame = frame;
Jim Blandy's avatar
Jim Blandy committed
131 132 133

  /* 10 is arbitrary,
     just so that there is "something there."
Jim Blandy's avatar
Jim Blandy committed
134
     Correct size will be set up later with change_frame_size.  */
Jim Blandy's avatar
Jim Blandy committed
135

Jim Blandy's avatar
Jim Blandy committed
136 137
  f->width = 10;
  f->height = 10;
Jim Blandy's avatar
Jim Blandy committed
138 139 140 141 142 143 144 145 146 147 148

  XFASTINT (XWINDOW (root_window)->width) = 10;
  XFASTINT (XWINDOW (root_window)->height) = (mini_p ? 9 : 10);

  if (mini_p)
    {
      XFASTINT (XWINDOW (mini_window)->width) = 10;
      XFASTINT (XWINDOW (mini_window)->top) = 9;
      XFASTINT (XWINDOW (mini_window)->height) = 1;
    }

Jim Blandy's avatar
Jim Blandy committed
149
  /* Choose a buffer for the frame's root window.  */
Jim Blandy's avatar
Jim Blandy committed
150 151 152 153 154 155 156 157 158 159 160 161
  {
    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.  */
    if (XSTRING (Fbuffer_name (buf))->data[0] == ' ')
      buf = Fother_buffer (buf);
    Fset_window_buffer (root_window, buf);
  }

Jim Blandy's avatar
Jim Blandy committed
162 163 164 165
  if (mini_p)
    {
      XWINDOW (mini_window)->buffer = Qt;
      Fset_window_buffer (mini_window,
Jim Blandy's avatar
Jim Blandy committed
166
			  (NILP (Vminibuffer_list)
Jim Blandy's avatar
Jim Blandy committed
167 168 169 170
			   ? get_minibuffer (0)
			   : Fcar (Vminibuffer_list)));
    }

Jim Blandy's avatar
Jim Blandy committed
171 172
  f->root_window = root_window;
  f->selected_window = root_window;
Jim Blandy's avatar
Jim Blandy committed
173 174
  /* Make sure this window seems more recently used than
     a newly-created, never-selected window.  */
Jim Blandy's avatar
Jim Blandy committed
175
  XFASTINT (XWINDOW (f->selected_window)->use_time) = ++window_select_count;
Jim Blandy's avatar
Jim Blandy committed
176

Jim Blandy's avatar
Jim Blandy committed
177
  Vframe_list = Fcons (frame, Vframe_list);
Jim Blandy's avatar
Jim Blandy committed
178

Jim Blandy's avatar
Jim Blandy committed
179
  return f;
Jim Blandy's avatar
Jim Blandy committed
180 181
}

Jim Blandy's avatar
Jim Blandy committed
182
/* Make a frame using a separate minibuffer window on another frame.
Jim Blandy's avatar
Jim Blandy committed
183 184 185
   MINI_WINDOW is the minibuffer window to use.  nil means use the
   default (the global minibuffer).  */

Jim Blandy's avatar
Jim Blandy committed
186 187
struct frame *
make_frame_without_minibuffer (mini_window)
Jim Blandy's avatar
Jim Blandy committed
188 189
     register Lisp_Object mini_window;
{
Jim Blandy's avatar
Jim Blandy committed
190
  register struct frame *f;
Jim Blandy's avatar
Jim Blandy committed
191 192

  /* Choose the minibuffer window to use.  */
Jim Blandy's avatar
Jim Blandy committed
193
  if (NILP (mini_window))
Jim Blandy's avatar
Jim Blandy committed
194
    {
Jim Blandy's avatar
Jim Blandy committed
195 196 197 198 199
      if (XTYPE (Vdefault_minibuffer_frame) != Lisp_Frame)
	error ("default-minibuffer-frame must be set when creating minibufferless frames");
      if (! FRAME_LIVE_P (XFRAME (Vdefault_minibuffer_frame)))
	error ("default-minibuffer-frame must be a live frame");
      mini_window = XFRAME (Vdefault_minibuffer_frame)->minibuffer_window;
Jim Blandy's avatar
Jim Blandy committed
200 201 202 203 204 205
    }
  else
    {
      CHECK_WINDOW (mini_window, 0);
    }

Jim Blandy's avatar
Jim Blandy committed
206 207
  /* Make a frame containing just a root window.  */
  f = make_frame (0);
Jim Blandy's avatar
Jim Blandy committed
208 209

  /* Install the chosen minibuffer window, with proper buffer.  */
Jim Blandy's avatar
Jim Blandy committed
210
  f->minibuffer_window = mini_window;
Jim Blandy's avatar
Jim Blandy committed
211
  Fset_window_buffer (mini_window,
Jim Blandy's avatar
Jim Blandy committed
212
		      (NILP (Vminibuffer_list)
Jim Blandy's avatar
Jim Blandy committed
213 214
		       ? get_minibuffer (0)
		       : Fcar (Vminibuffer_list)));
Jim Blandy's avatar
Jim Blandy committed
215
  return f;
Jim Blandy's avatar
Jim Blandy committed
216 217
}

Jim Blandy's avatar
Jim Blandy committed
218
/* Make a frame containing only a minibuffer window.  */
Jim Blandy's avatar
Jim Blandy committed
219

Jim Blandy's avatar
Jim Blandy committed
220 221
struct frame *
make_minibuffer_frame ()
Jim Blandy's avatar
Jim Blandy committed
222
{
Jim Blandy's avatar
Jim Blandy committed
223
  /* First make a frame containing just a root window, no minibuffer.  */
Jim Blandy's avatar
Jim Blandy committed
224

Jim Blandy's avatar
Jim Blandy committed
225
  register struct frame *f = make_frame (0);
Jim Blandy's avatar
Jim Blandy committed
226
  register Lisp_Object mini_window;
Jim Blandy's avatar
Jim Blandy committed
227
  register Lisp_Object frame;
Jim Blandy's avatar
Jim Blandy committed
228

Jim Blandy's avatar
Jim Blandy committed
229
  XSET (frame, Lisp_Frame, f);
Jim Blandy's avatar
Jim Blandy committed
230 231

  /* ??? Perhaps leave it to the user program to set auto_raise.  */
Jim Blandy's avatar
Jim Blandy committed
232 233 234 235 236
  f->auto_raise = 1;
  f->auto_lower = 0;
  f->no_split = 1;
  f->wants_modeline = 0;
  f->has_minibuffer = 1;
Jim Blandy's avatar
Jim Blandy committed
237 238 239 240 241

  /* 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
242
  mini_window = f->minibuffer_window = f->root_window;
Jim Blandy's avatar
Jim Blandy committed
243 244 245
  XWINDOW (mini_window)->mini_p = Qt;
  XWINDOW (mini_window)->next = Qnil;
  XWINDOW (mini_window)->prev = mini_window;
Jim Blandy's avatar
Jim Blandy committed
246
  XWINDOW (mini_window)->frame = frame;
Jim Blandy's avatar
Jim Blandy committed
247 248 249 250

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

  Fset_window_buffer (mini_window,
Jim Blandy's avatar
Jim Blandy committed
251
		      (NILP (Vminibuffer_list)
Jim Blandy's avatar
Jim Blandy committed
252 253
		       ? get_minibuffer (0)
		       : Fcar (Vminibuffer_list)));
Jim Blandy's avatar
Jim Blandy committed
254
  return f;
Jim Blandy's avatar
Jim Blandy committed
255 256
}

Jim Blandy's avatar
Jim Blandy committed
257
/* Construct a frame that refers to the terminal (stdin and stdout).  */
Jim Blandy's avatar
Jim Blandy committed
258

Jim Blandy's avatar
Jim Blandy committed
259 260
struct frame *
make_terminal_frame ()
Jim Blandy's avatar
Jim Blandy committed
261
{
Jim Blandy's avatar
Jim Blandy committed
262 263 264 265 266 267 268 269 270
  register struct frame *f;

  Vframe_list = Qnil;
  f = make_frame (1);
  f->name = build_string ("terminal");
  f->visible = 1;
  f->display.nothing = 1;   /* Nonzero means frame isn't deleted.  */
  XSET (Vterminal_frame, Lisp_Frame, f);
  return f;
Jim Blandy's avatar
Jim Blandy committed
271 272
}

Jim Blandy's avatar
Jim Blandy committed
273 274
DEFUN ("select-frame", Fselect_frame, Sselect_frame, 1, 2, 0,
  "Select the frame FRAME.  FRAMES's selected window becomes \"the\"\n\
Jim Blandy's avatar
Jim Blandy committed
275
selected window.  If the optional parameter NO-ENTER is non-nil, don't\n\
Jim Blandy's avatar
Jim Blandy committed
276 277 278
focus on that frame.")
  (frame, no_enter)
     Lisp_Object frame, no_enter;
Jim Blandy's avatar
Jim Blandy committed
279
{
Jim Blandy's avatar
Jim Blandy committed
280
  CHECK_LIVE_FRAME (frame, 0);
Jim Blandy's avatar
Jim Blandy committed
281

Jim Blandy's avatar
Jim Blandy committed
282 283
  if (selected_frame == XFRAME (frame))
    return frame;
Jim Blandy's avatar
Jim Blandy committed
284

Jim Blandy's avatar
Jim Blandy committed
285 286 287
  selected_frame = XFRAME (frame);
  if (! FRAME_MINIBUF_ONLY_P (selected_frame))
    last_nonminibuf_frame = selected_frame;
Jim Blandy's avatar
Jim Blandy committed
288

Jim Blandy's avatar
Jim Blandy committed
289
  Fselect_window (XFRAME (frame)->selected_window);
Jim Blandy's avatar
Jim Blandy committed
290 291

#ifdef HAVE_X_WINDOWS
Jim Blandy's avatar
Jim Blandy committed
292 293
#ifdef MULTI_FRAME
  if (FRAME_IS_X (XFRAME (frame))
Jim Blandy's avatar
Jim Blandy committed
294
      && NILP (no_enter))
Jim Blandy's avatar
Jim Blandy committed
295
    {
Jim Blandy's avatar
Jim Blandy committed
296
      Ffocus_frame (frame);
Jim Blandy's avatar
Jim Blandy committed
297 298 299
    }
#endif
#endif
Jim Blandy's avatar
Jim Blandy committed
300
  choose_minibuf_frame ();
Jim Blandy's avatar
Jim Blandy committed
301

Jim Blandy's avatar
Jim Blandy committed
302
  return frame;
Jim Blandy's avatar
Jim Blandy committed
303 304
}

Jim Blandy's avatar
Jim Blandy committed
305 306
DEFUN ("selected-frame", Fselected_frame, Sselected_frame, 0, 0, 0,
  "Return the frame that is now selected.")
Jim Blandy's avatar
Jim Blandy committed
307 308 309
  ()
{
  Lisp_Object tem;
Jim Blandy's avatar
Jim Blandy committed
310
  XSET (tem, Lisp_Frame, selected_frame);
Jim Blandy's avatar
Jim Blandy committed
311 312 313
  return tem;
}

Jim Blandy's avatar
Jim Blandy committed
314 315
DEFUN ("window-frame", Fwindow_frame, Swindow_frame, 1, 1, 0,
  "Return the frame object that window WINDOW is on.")
Jim Blandy's avatar
Jim Blandy committed
316 317 318 319
  (window)
     Lisp_Object window;
{
  CHECK_WINDOW (window, 0);
Jim Blandy's avatar
Jim Blandy committed
320
  return XWINDOW (window)->frame;
Jim Blandy's avatar
Jim Blandy committed
321 322
}

Jim Blandy's avatar
Jim Blandy committed
323 324 325 326
DEFUN ("frame-root-window", Fframe_root_window, Sframe_root_window, 0, 1, 0,
       "Returns the root-window of FRAME.")
  (frame)
     Lisp_Object frame;
Jim Blandy's avatar
Jim Blandy committed
327
{
Jim Blandy's avatar
Jim Blandy committed
328 329
  if (NILP (frame))
    XSET (frame, Lisp_Frame, selected_frame);
Jim Blandy's avatar
Jim Blandy committed
330
  else
Jim Blandy's avatar
Jim Blandy committed
331
    CHECK_LIVE_FRAME (frame, 0);
Jim Blandy's avatar
Jim Blandy committed
332

Jim Blandy's avatar
Jim Blandy committed
333
  return XFRAME (frame)->root_window;
Jim Blandy's avatar
Jim Blandy committed
334 335
}

Jim Blandy's avatar
Jim Blandy committed
336 337 338 339 340
DEFUN ("frame-selected-window", Fframe_selected_window,
       Sframe_selected_window, 0, 1, 0,
  "Return the selected window of frame object FRAME.")
  (frame)
     Lisp_Object frame;
Jim Blandy's avatar
Jim Blandy committed
341
{
Jim Blandy's avatar
Jim Blandy committed
342 343
  if (NILP (frame))
    XSET (frame, Lisp_Frame, selected_frame);
Jim Blandy's avatar
Jim Blandy committed
344
  else
Jim Blandy's avatar
Jim Blandy committed
345
    CHECK_LIVE_FRAME (frame, 0);
Jim Blandy's avatar
Jim Blandy committed
346

Jim Blandy's avatar
Jim Blandy committed
347
  return XFRAME (frame)->selected_window;
Jim Blandy's avatar
Jim Blandy committed
348 349
}

Jim Blandy's avatar
Jim Blandy committed
350
DEFUN ("frame-list", Fframe_list, Sframe_list,
Jim Blandy's avatar
Jim Blandy committed
351
       0, 0, 0,
Jim Blandy's avatar
Jim Blandy committed
352
       "Return a list of all frames.")
Jim Blandy's avatar
Jim Blandy committed
353 354
  ()
{
Jim Blandy's avatar
Jim Blandy committed
355
  return Fcopy_sequence (Vframe_list);
Jim Blandy's avatar
Jim Blandy committed
356 357
}

Jim Blandy's avatar
Jim Blandy committed
358
#ifdef MULTI_FRAME
Jim Blandy's avatar
Jim Blandy committed
359

Jim Blandy's avatar
Jim Blandy committed
360 361 362 363
/* Return the next frame in the frame list after FRAME.
   If MINIBUF is non-nil, include all frames.
   If MINIBUF is nil, exclude minibuffer-only frames.
   If MINIBUF is a window, include only frames using that window for
Jim Blandy's avatar
Jim Blandy committed
364
   their minibuffer.  */
Jim Blandy's avatar
Jim Blandy committed
365
Lisp_Object
Jim Blandy's avatar
Jim Blandy committed
366 367
next_frame (frame, minibuf)
     Lisp_Object frame;
Jim Blandy's avatar
Jim Blandy committed
368
     Lisp_Object minibuf;
Jim Blandy's avatar
Jim Blandy committed
369 370 371 372
{
  Lisp_Object tail;
  int passed = 0;

Jim Blandy's avatar
Jim Blandy committed
373 374
  /* There must always be at least one frame in Vframe_list.  */
  if (! CONSP (Vframe_list))
Jim Blandy's avatar
Jim Blandy committed
375 376
    abort ();

Jim Blandy's avatar
Jim Blandy committed
377
  while (1)
Jim Blandy's avatar
Jim Blandy committed
378
    for (tail = Vframe_list; CONSP (tail); tail = XCONS (tail)->cdr)
Jim Blandy's avatar
Jim Blandy committed
379 380
      {
	if (passed)
Jim Blandy's avatar
Jim Blandy committed
381
	  {
Jim Blandy's avatar
Jim Blandy committed
382
	    Lisp_Object f = XCONS (tail)->car;
Jim Blandy's avatar
Jim Blandy committed
383

Jim Blandy's avatar
Jim Blandy committed
384
	    /* Decide whether this frame is eligible to be returned,
Jim Blandy's avatar
Jim Blandy committed
385
	       according to minibuf.  */
Jim Blandy's avatar
Jim Blandy committed
386
	    if ((NILP (minibuf) && ! FRAME_MINIBUF_ONLY_P (XFRAME (f)))
Jim Blandy's avatar
Jim Blandy committed
387
		|| XTYPE (minibuf) != Lisp_Window
Jim Blandy's avatar
Jim Blandy committed
388 389 390
		|| EQ (FRAME_MINIBUF_WINDOW (XFRAME (f)), minibuf)
		|| EQ (f, frame))
	      return f;
Jim Blandy's avatar
Jim Blandy committed
391
	  }
Jim Blandy's avatar
Jim Blandy committed
392

Jim Blandy's avatar
Jim Blandy committed
393
	if (EQ (frame, XCONS (tail)->car))
Jim Blandy's avatar
Jim Blandy committed
394 395 396 397
	  passed++;
      }
}

Jim Blandy's avatar
Jim Blandy committed
398 399 400 401
/* Return the previous frame in the frame list before FRAME.
   If MINIBUF is non-nil, include all frames.
   If MINIBUF is nil, exclude minibuffer-only frames.
   If MINIBUF is a window, include only frames using that window for
Jim Blandy's avatar
Jim Blandy committed
402
   their minibuffer.  */
Jim Blandy's avatar
Jim Blandy committed
403
Lisp_Object
Jim Blandy's avatar
Jim Blandy committed
404 405
prev_frame (frame, minibuf)
     Lisp_Object frame;
Jim Blandy's avatar
Jim Blandy committed
406
     Lisp_Object minibuf;
Jim Blandy's avatar
Jim Blandy committed
407 408 409 410
{
  Lisp_Object tail;
  Lisp_Object prev;

Jim Blandy's avatar
Jim Blandy committed
411 412
  /* There must always be at least one frame in Vframe_list.  */
  if (! CONSP (Vframe_list))
Jim Blandy's avatar
Jim Blandy committed
413 414
    abort ();

Jim Blandy's avatar
Jim Blandy committed
415 416
  prev = Qnil;
  while (1)
Jim Blandy's avatar
Jim Blandy committed
417
    {
Jim Blandy's avatar
Jim Blandy committed
418
      for (tail = Vframe_list; CONSP (tail); tail = XCONS (tail)->cdr)
Jim Blandy's avatar
Jim Blandy committed
419 420 421
	{
	  Lisp_Object scr = XCONS (tail)->car;

Jim Blandy's avatar
Jim Blandy committed
422
	  if (XTYPE (scr) != Lisp_Frame)
Jim Blandy's avatar
Jim Blandy committed
423 424
	    abort ();

Jim Blandy's avatar
Jim Blandy committed
425
	  if (EQ (frame, scr) && !NILP (prev))
Jim Blandy's avatar
Jim Blandy committed
426 427
	    return prev;

Jim Blandy's avatar
Jim Blandy committed
428
	  /* Decide whether this frame is eligible to be returned,
Jim Blandy's avatar
Jim Blandy committed
429
	     according to minibuf.  */
Jim Blandy's avatar
Jim Blandy committed
430
	  if ((NILP (minibuf) && ! FRAME_MINIBUF_ONLY_P (XFRAME (scr)))
Jim Blandy's avatar
Jim Blandy committed
431
	      || XTYPE (minibuf) != Lisp_Window
Jim Blandy's avatar
Jim Blandy committed
432
	      || EQ (FRAME_MINIBUF_WINDOW (XFRAME (scr)), minibuf))
Jim Blandy's avatar
Jim Blandy committed
433 434 435
	    prev = scr;
	}

Jim Blandy's avatar
Jim Blandy committed
436
      if (NILP (prev))
Jim Blandy's avatar
Jim Blandy committed
437 438 439
	/* We went through the whole frame list without finding a single
	   acceptable frame.  Return the original frame.  */
	prev = frame;
Jim Blandy's avatar
Jim Blandy committed
440 441
    }
	  
Jim Blandy's avatar
Jim Blandy committed
442 443
}

Jim Blandy's avatar
Jim Blandy committed
444 445 446 447 448
DEFUN ("next-frame", Fnext_frame, Snext_frame, 0, 2, 0,
  "Return the next frame in the frame list after FRAME.\n\
If optional argument MINIBUF is non-nil, include all frames.  If\n\
MINIBUF is nil or omitted, exclude minibuffer-only frames.  If\n\
MINIBUF is a window, include only frames using that window for their\n\
Jim Blandy's avatar
Jim Blandy committed
449
minibuffer.")
Jim Blandy's avatar
Jim Blandy committed
450 451
  (frame, miniframe)
Lisp_Object frame, miniframe;
Jim Blandy's avatar
Jim Blandy committed
452 453 454
{
  Lisp_Object tail;

Jim Blandy's avatar
Jim Blandy committed
455 456
  if (NILP (frame))
    XSET (frame, Lisp_Frame, selected_frame);
Jim Blandy's avatar
Jim Blandy committed
457
  else
Jim Blandy's avatar
Jim Blandy committed
458
    CHECK_LIVE_FRAME (frame, 0);
Jim Blandy's avatar
Jim Blandy committed
459

Jim Blandy's avatar
Jim Blandy committed
460
  return next_frame (frame, miniframe);
Jim Blandy's avatar
Jim Blandy committed
461
}
Jim Blandy's avatar
Jim Blandy committed
462
#endif /* MULTI_FRAME */
Jim Blandy's avatar
Jim Blandy committed
463

Jim Blandy's avatar
Jim Blandy committed
464 465 466 467 468 469
DEFUN ("delete-frame", Fdelete_frame, Sdelete_frame, 0, 1, "",
  "Delete FRAME, permanently eliminating it from use.\n\
If omitted, FRAME defaults to the selected frame.\n\
A frame may not be deleted if its minibuffer is used by other frames.")
  (frame)
     Lisp_Object frame;
Jim Blandy's avatar
Jim Blandy committed
470
{
Jim Blandy's avatar
Jim Blandy committed
471
  struct frame *f;
Jim Blandy's avatar
Jim Blandy committed
472 473
  union display displ;

Jim Blandy's avatar
Jim Blandy committed
474
  if (EQ (frame, Qnil))
Jim Blandy's avatar
Jim Blandy committed
475
    {
Jim Blandy's avatar
Jim Blandy committed
476 477
      f = selected_frame;
      XSET (frame, Lisp_Frame, f);
Jim Blandy's avatar
Jim Blandy committed
478 479 480
    }
  else
    {
Jim Blandy's avatar
Jim Blandy committed
481 482
      CHECK_FRAME (frame, 0);
      f = XFRAME (frame);
Jim Blandy's avatar
Jim Blandy committed
483 484
    }

Jim Blandy's avatar
Jim Blandy committed
485
  if (! FRAME_LIVE_P (f))
Jim Blandy's avatar
Jim Blandy committed
486 487
    return;

Jim Blandy's avatar
Jim Blandy committed
488 489 490
  /* Are there any other frames besides this one?  */
  if (f == selected_frame && EQ (next_frame (frame, Qt), frame))
    error ("Attempt to delete the only frame");
Jim Blandy's avatar
Jim Blandy committed
491

Jim Blandy's avatar
Jim Blandy committed
492 493 494
  /* Does this frame have a minibuffer, and is it the surrogate
     minibuffer for any other frame?  */
  if (FRAME_HAS_MINIBUF (XFRAME (frame)))
Jim Blandy's avatar
Jim Blandy committed
495
    {
Jim Blandy's avatar
Jim Blandy committed
496
      Lisp_Object frames;
Jim Blandy's avatar
Jim Blandy committed
497

Jim Blandy's avatar
Jim Blandy committed
498 499 500
      for (frames = Vframe_list;
	   CONSP (frames);
	   frames = XCONS (frames)->cdr)
Jim Blandy's avatar
Jim Blandy committed
501
	{
Jim Blandy's avatar
Jim Blandy committed
502
	  Lisp_Object this = XCONS (frames)->car;
Jim Blandy's avatar
Jim Blandy committed
503

Jim Blandy's avatar
Jim Blandy committed
504 505 506
	  if (! EQ (this, frame)
	      && EQ (frame,
		     (WINDOW_FRAME
Jim Blandy's avatar
Jim Blandy committed
507
		      (XWINDOW
Jim Blandy's avatar
Jim Blandy committed
508 509 510
		       (FRAME_MINIBUF_WINDOW
			(XFRAME (this)))))))
	    error ("Attempt to delete a surrogate minibuffer frame");
Jim Blandy's avatar
Jim Blandy committed
511
	}
Jim Blandy's avatar
Jim Blandy committed
512 513
    }

Jim Blandy's avatar
Jim Blandy committed
514 515 516
  /* Don't let the frame remain selected.  */
  if (f == selected_frame)
    Fselect_frame (next_frame (frame, Qt));
Jim Blandy's avatar
Jim Blandy committed
517

Jim Blandy's avatar
Jim Blandy committed
518 519
  /* Don't allow minibuf_window to remain on a deleted frame.  */
  if (EQ (f->minibuffer_window, minibuf_window))
Jim Blandy's avatar
Jim Blandy committed
520
    {
Jim Blandy's avatar
Jim Blandy committed
521
      Fset_window_buffer (selected_frame->minibuffer_window,
Jim Blandy's avatar
Jim Blandy committed
522
			  XWINDOW (minibuf_window)->buffer);
Jim Blandy's avatar
Jim Blandy committed
523
      minibuf_window = selected_frame->minibuffer_window;
Jim Blandy's avatar
Jim Blandy committed
524 525
    }

Jim Blandy's avatar
Jim Blandy committed
526 527 528 529
  Vframe_list = Fdelq (frame, Vframe_list);
  f->visible = 0;
  displ = f->display;
  f->display.nothing = 0;
Jim Blandy's avatar
Jim Blandy committed
530

Jim Blandy's avatar
Jim Blandy committed
531
#ifdef HAVE_X_WINDOWS
Jim Blandy's avatar
Jim Blandy committed
532 533
  if (FRAME_IS_X (f))
    x_destroy_window (f, displ);
Jim Blandy's avatar
Jim Blandy committed
534 535
#endif

Jim Blandy's avatar
Jim Blandy committed
536
  /* If we've deleted the last_nonminibuf_frame, then try to find
Jim Blandy's avatar
Jim Blandy committed
537
     another one.  */
Jim Blandy's avatar
Jim Blandy committed
538
  if (f == last_nonminibuf_frame)
Jim Blandy's avatar
Jim Blandy committed
539
    {
Jim Blandy's avatar
Jim Blandy committed
540
      Lisp_Object frames;
Jim Blandy's avatar
Jim Blandy committed
541

Jim Blandy's avatar
Jim Blandy committed
542
      last_nonminibuf_frame = 0;
Jim Blandy's avatar
Jim Blandy committed
543

Jim Blandy's avatar
Jim Blandy committed
544 545 546
      for (frames = Vframe_list;
	   CONSP (frames);
	   frames = XCONS (frames)->cdr)
Jim Blandy's avatar
Jim Blandy committed
547
	{
Jim Blandy's avatar
Jim Blandy committed
548 549
	  f = XFRAME (XCONS (frames)->car);
	  if (!FRAME_MINIBUF_ONLY_P (f))
Jim Blandy's avatar
Jim Blandy committed
550
	    {
Jim Blandy's avatar
Jim Blandy committed
551
	      last_nonminibuf_frame = f;
Jim Blandy's avatar
Jim Blandy committed
552 553 554 555
	      break;
	    }
	}
    }
Jim Blandy's avatar
Jim Blandy committed
556

Jim Blandy's avatar
Jim Blandy committed
557 558
  /* If we've deleted Vdefault_minibuffer_frame, try to find another
     one.  Prefer minibuffer-only frames, but also notice frames
Jim Blandy's avatar
Jim Blandy committed
559
     with other windows.  */
Jim Blandy's avatar
Jim Blandy committed
560
  if (EQ (frame, Vdefault_minibuffer_frame))
Jim Blandy's avatar
Jim Blandy committed
561
    {
Jim Blandy's avatar
Jim Blandy committed
562
      Lisp_Object frames;
Jim Blandy's avatar
Jim Blandy committed
563

Jim Blandy's avatar
Jim Blandy committed
564 565
      /* The last frame we saw with a minibuffer, minibuffer-only or not.  */
      Lisp_Object frame_with_minibuf = Qnil;
Jim Blandy's avatar
Jim Blandy committed
566

Jim Blandy's avatar
Jim Blandy committed
567 568 569
      for (frames = Vframe_list;
	   CONSP (frames);
	   frames = XCONS (frames)->cdr)
Jim Blandy's avatar
Jim Blandy committed
570
	{
Jim Blandy's avatar
Jim Blandy committed
571
	  Lisp_Object this = XCONS (frames)->car;
Jim Blandy's avatar
Jim Blandy committed
572

Jim Blandy's avatar
Jim Blandy committed
573
	  if (XTYPE (this) != Lisp_Frame)
Jim Blandy's avatar
Jim Blandy committed
574
	    abort ();
Jim Blandy's avatar
Jim Blandy committed
575
	  f = XFRAME (this);
Jim Blandy's avatar
Jim Blandy committed
576

Jim Blandy's avatar
Jim Blandy committed
577
	  if (FRAME_HAS_MINIBUF (f))
Jim Blandy's avatar
Jim Blandy committed
578
	    {
Jim Blandy's avatar
Jim Blandy committed
579 580
	      frame_with_minibuf = this;
	      if (FRAME_MINIBUF_ONLY_P (f))
Jim Blandy's avatar
Jim Blandy committed
581 582 583 584
		break;
	    }
	}

Jim Blandy's avatar
Jim Blandy committed
585 586
      /* We know that there must be some frame with a minibuffer out
	 there.  If this were not true, all of the frames present
Jim Blandy's avatar
Jim Blandy committed
587
	 would have to be minibufferless, which implies that at some
Jim Blandy's avatar
Jim Blandy committed
588
	 point their minibuffer frames must have been deleted, but
Jim Blandy's avatar
Jim Blandy committed
589
	 that is prohibited at the top; you can't delete surrogate
Jim Blandy's avatar
Jim Blandy committed
590 591
	 minibuffer frames.  */
      if (NILP (frame_with_minibuf))
Jim Blandy's avatar
Jim Blandy committed
592 593
	abort ();

Jim Blandy's avatar
Jim Blandy committed
594
      Vdefault_minibuffer_frame = frame_with_minibuf;
Jim Blandy's avatar
Jim Blandy committed
595 596
    }

Jim Blandy's avatar
Jim Blandy committed
597 598 599 600 601
  return Qnil;
}

/* Return mouse position in character cell units.  */

Jim Blandy's avatar
Jim Blandy committed
602
DEFUN ("mouse-position", Fmouse_position, Smouse_position, 0, 0, 0,
Jim Blandy's avatar
Jim Blandy committed
603
  "Return a list (FRAME X . Y) giving the current mouse frame and position.\n\
Jim Blandy's avatar
Jim Blandy committed
604
If Emacs is running on a mouseless terminal or hasn't been programmed\n\
Jim Blandy's avatar
Jim Blandy committed
605
to read the mouse position, it returns the selected frame for FRAME\n\
Jim Blandy's avatar
Jim Blandy committed
606 607
and nil for X and Y.")
  ()
Jim Blandy's avatar
Jim Blandy committed
608
{
Jim Blandy's avatar
Jim Blandy committed
609
  Lisp_Object x, y, dummy;
Jim Blandy's avatar
Jim Blandy committed
610
  FRAME_PTR f;
Jim Blandy's avatar
Jim Blandy committed
611

Jim Blandy's avatar
Jim Blandy committed
612
  if (mouse_position_hook)
Jim Blandy's avatar
Jim Blandy committed
613
    (*mouse_position_hook) (&f, &x, &y, &dummy);
Jim Blandy's avatar
Jim Blandy committed
614 615
  else
    {
Jim Blandy's avatar
Jim Blandy committed
616
      f = selected_frame;
Jim Blandy's avatar
Jim Blandy committed
617 618
      x = y = Qnil;
    }
Jim Blandy's avatar
Jim Blandy committed
619

Jim Blandy's avatar
Jim Blandy committed
620
  XSET (dummy, Lisp_Frame, f);
Jim Blandy's avatar
Jim Blandy committed
621
  return Fcons (dummy, Fcons (make_number (x), make_number (y)));
Jim Blandy's avatar
Jim Blandy committed
622 623 624
}

DEFUN ("set-mouse-position", Fset_mouse_position, Sset_mouse_position, 3, 3, 0,
Jim Blandy's avatar
Jim Blandy committed
625 626 627 628
  "Move the mouse pointer to the center of cell (X,Y) in FRAME.\n\
WARNING:  If you use this under X, you should do `unfocus-frame' afterwards.")
  (frame, x, y)
     Lisp_Object frame, x, y;
Jim Blandy's avatar
Jim Blandy committed
629
{
Jim Blandy's avatar
Jim Blandy committed
630
  CHECK_LIVE_FRAME (frame, 0);
Jim Blandy's avatar
Jim Blandy committed
631 632 633 634
  CHECK_NUMBER (x, 2);
  CHECK_NUMBER (y, 1);

#ifdef HAVE_X_WINDOWS
Jim Blandy's avatar
Jim Blandy committed
635
  if (FRAME_IS_X (XFRAME (frame)))
Jim Blandy's avatar
Jim Blandy committed
636
    /* Warping the mouse will cause  enternotify and focus events. */
Jim Blandy's avatar
Jim Blandy committed
637
    x_set_mouse_position (XFRAME (frame), x, y);
Jim Blandy's avatar
Jim Blandy committed
638 639 640 641 642 643 644
#endif

  return Qnil;
}

#if 0
/* ??? Can this be replaced with a Lisp function?
Jim Blandy's avatar
Jim Blandy committed
645 646
   It is used in minibuf.c.  Can we get rid of that?
   Yes.  All uses in minibuf.c are gone, and parallels to these
Jim Blandy's avatar
Jim Blandy committed
647
   functions have been defined in frame.el.  */
Jim Blandy's avatar
Jim Blandy committed
648

Jim Blandy's avatar
Jim Blandy committed
649
DEFUN ("frame-configuration", Fframe_configuration, Sframe_configuration,
Jim Blandy's avatar
Jim Blandy committed
650
       0, 0, 0,
Jim Blandy's avatar
Jim Blandy committed
651 652 653 654
  "Return object describing current frame configuration.\n\
The frame configuration is the current mouse position and selected frame.\n\
This object can be given to `restore-frame-configuration'\n\
to restore this frame configuration.")
Jim Blandy's avatar
Jim Blandy committed
655 656
  ()
{
Jim Blandy's avatar
Jim Blandy committed
657
  Lisp_Object c, time;
Jim Blandy's avatar
Jim Blandy committed
658
  
Jim Blandy's avatar
Jim Blandy committed
659
  c = Fmake_vector (make_number(4), Qnil);
Jim Blandy's avatar
Jim Blandy committed
660
  XVECTOR (c)->contents[0] = Fselected_frame();
Jim Blandy's avatar
Jim Blandy committed
661 662 663 664 665
  if (mouse_position_hook)
    (*mouse_position_hook) (&XVECTOR (c)->contents[1]
			    &XVECTOR (c)->contents[2],
			    &XVECTOR (c)->contents[3],
			    &time);
Jim Blandy's avatar
Jim Blandy committed
666 667 668
  return c;
}

Jim Blandy's avatar
Jim Blandy committed
669 670
DEFUN ("restore-frame-configuration", Frestore_frame_configuration,
       Srestore_frame_configuration,
Jim Blandy's avatar
Jim Blandy committed
671
       1, 1, 0,
Jim Blandy's avatar
Jim Blandy committed
672
  "Restores frame configuration CONFIGURATION.")
Jim Blandy's avatar
Jim Blandy committed
673 674 675
  (config)
  Lisp_Object config;
{
Jim Blandy's avatar
Jim Blandy committed
676
  Lisp_Object x_pos, y_pos, frame;
Jim Blandy's avatar
Jim Blandy committed
677 678 679 680

  CHECK_VECTOR (config, 0);
  if (XVECTOR (config)->size != 3)
    {
Jim Blandy's avatar
Jim Blandy committed
681
      error ("Wrong size vector passed to restore-frame-configuration");
Jim Blandy's avatar
Jim Blandy committed
682
    }
Jim Blandy's avatar
Jim Blandy committed
683 684
  frame = XVECTOR (config)->contents[0];
  CHECK_LIVE_FRAME (frame, 0);
Jim Blandy's avatar
Jim Blandy committed
685

Jim Blandy's avatar
Jim Blandy committed
686
  Fselect_frame (frame, Qnil);
Jim Blandy's avatar
Jim Blandy committed
687 688

#if 0
Jim Blandy's avatar
Jim Blandy committed
689
  /* This seems to interfere with the frame selection mechanism. jla */
Jim Blandy's avatar
Jim Blandy committed
690 691
  x_pos = XVECTOR (config)->contents[2];
  y_pos = XVECTOR (config)->contents[3];
Jim Blandy's avatar
Jim Blandy committed
692
  set_mouse_position (frame, XINT (x_pos), XINT (y_pos));
Jim Blandy's avatar
Jim Blandy committed
693 694
#endif

Jim Blandy's avatar
Jim Blandy committed
695
  return frame;
Jim Blandy's avatar
Jim Blandy committed
696 697 698
}    
#endif

Jim Blandy's avatar
Jim Blandy committed
699
DEFUN ("make-frame-visible", Fmake_frame_visible, Smake_frame_visible,
Jim Blandy's avatar
Jim Blandy committed
700
       0, 1, 0,
Jim Blandy's avatar
Jim Blandy committed
701 702 703 704
  "Make the frame FRAME visible (assuming it is an X-window).\n\
Also raises the frame so that nothing obscures it.")
  (frame)
     Lisp_Object frame;
Jim Blandy's avatar
Jim Blandy committed
705
{
Jim Blandy's avatar
Jim Blandy committed
706
  if (NILP (frame))
Jim Blandy's avatar
Jim Blandy committed
707
    XSET (frame, Lisp_Frame, selected_frame);
Jim Blandy's avatar
Jim Blandy committed
708

Jim Blandy's avatar
Jim Blandy committed
709
  CHECK_LIVE_FRAME (frame, 0);
Jim Blandy's avatar
Jim Blandy committed
710

Jim Blandy's avatar
Jim Blandy committed
711 712
  if (FRAME_IS_X (XFRAME (frame)))
    x_make_frame_visible (XFRAME (frame));
Jim Blandy's avatar
Jim Blandy committed
713

Jim Blandy's avatar
Jim Blandy committed
714
  return frame;
Jim Blandy's avatar
Jim Blandy committed
715 716
}

Jim Blandy's avatar
Jim Blandy committed
717
DEFUN ("make-frame-invisible", Fmake_frame_invisible, Smake_frame_invisible,
Jim Blandy's avatar
Jim Blandy committed
718
       0, 1, "",
Jim Blandy's avatar
Jim Blandy committed
719 720 721
  "Make the frame FRAME invisible (assuming it is an X-window).")
  (frame)
     Lisp_Object frame;
Jim Blandy's avatar
Jim Blandy committed
722
{
Jim Blandy's avatar
Jim Blandy committed
723
  if (NILP (frame))
Jim Blandy's avatar
Jim Blandy committed
724
    XSET (frame, Lisp_Frame, selected_frame);
Jim Blandy's avatar
Jim Blandy committed
725

Jim Blandy's avatar
Jim Blandy committed
726
  CHECK_LIVE_FRAME (frame, 0);
Jim Blandy's avatar
Jim Blandy committed
727

Jim Blandy's avatar
Jim Blandy committed
728 729
  if (FRAME_IS_X (XFRAME (frame)))
    x_make_frame_invisible (XFRAME (frame));
Jim Blandy's avatar
Jim Blandy committed
730 731 732 733

  return Qnil;
}

Jim Blandy's avatar
Jim Blandy committed
734
DEFUN ("iconify-frame", Ficonify_frame, Siconify_frame,
Jim Blandy's avatar
Jim Blandy committed
735
       0, 1, "",
Jim Blandy's avatar
Jim Blandy committed
736 737 738
  "Make the frame FRAME into an icon.")
  (frame)
     Lisp_Object frame;
Jim Blandy's avatar
Jim Blandy committed
739
{
Jim Blandy's avatar
Jim Blandy committed
740
  if (NILP (frame))
Jim Blandy's avatar
Jim Blandy committed
741
    XSET (frame, Lisp_Frame, selected_frame);
Jim Blandy's avatar
Jim Blandy committed
742
  
Jim Blandy's avatar
Jim Blandy committed
743
  CHECK_LIVE_FRAME (frame, 0);
Jim Blandy's avatar
Jim Blandy committed
744

Jim Blandy's avatar
Jim Blandy committed
745 746
  if (FRAME_IS_X (XFRAME (frame)))
      x_iconify_frame (XFRAME (frame));
Jim Blandy's avatar
Jim Blandy committed
747 748 749 750

  return Qnil;
}

Jim Blandy's avatar
Jim Blandy committed
751
DEFUN ("frame-visible-p", Fframe_visible_p, Sframe_visible_p,
Jim Blandy's avatar
Jim Blandy committed
752
       1, 1, 0,
Jim Blandy's avatar
Jim Blandy committed
753 754
       "Return t if FRAME is now \"visible\" (actually in use for display).\n\
A frame that is not \"visible\" is not updated and, if it works through\n\
Jim Blandy's avatar
Jim Blandy committed
755 756
a window system, it may not show at all.\n\
Return the symbol `icon' if window is visible only as an icon.")
Jim Blandy's avatar
Jim Blandy committed
757 758
  (frame)
     Lisp_Object frame;
Jim Blandy's avatar
Jim Blandy committed
759
{
Jim Blandy's avatar
Jim Blandy committed
760
  CHECK_LIVE_FRAME (frame, 0);
Jim Blandy's avatar
Jim Blandy committed
761

Jim Blandy's avatar
Jim Blandy committed
762
  if (XFRAME (frame)->visible)
Jim Blandy's avatar
Jim Blandy committed
763
    return Qt;
Jim Blandy's avatar
Jim Blandy committed
764
  if (XFRAME (frame)->iconified)
Jim Blandy's avatar
Jim Blandy committed
765 766 767 768
    return intern ("icon");
  return Qnil;
}

Jim Blandy's avatar
Jim Blandy committed
769
DEFUN ("visible-frame-list", Fvisible_frame_list, Svisible_frame_list,
Jim Blandy's avatar
Jim Blandy committed
770
       0, 0, 0,
Jim Blandy's avatar
Jim Blandy committed
771
       "Return a list of all frames now \"visible\" (being updated).")
Jim Blandy's avatar
Jim Blandy committed
772 773
  ()
{
Jim Blandy's avatar
Jim Blandy committed
774 775
  Lisp_Object tail, frame;
  struct frame *f;
Jim Blandy's avatar
Jim Blandy committed
776 777 778
  Lisp_Object value;

  value = Qnil;
Jim Blandy's avatar
Jim Blandy committed
779
  for (tail = Vframe_list; CONSP (tail); tail = XCONS (tail)->cdr)
Jim Blandy's avatar
Jim Blandy committed
780
    {
Jim Blandy's avatar
Jim Blandy committed
781 782
      frame = XCONS (tail)->car;
      if (XTYPE (frame) != Lisp_Frame)
Jim Blandy's avatar
Jim Blandy committed
783
	continue;
Jim Blandy's avatar
Jim Blandy committed
784 785 786
      f = XFRAME (frame);
      if (f->visible)
	value = Fcons (frame, value);
Jim Blandy's avatar
Jim Blandy committed
787 788 789
    }
  return value;
}
Jim Blandy's avatar
Jim Blandy committed
790 791 792



Jim Blandy's avatar
Jim Blandy committed
793
DEFUN ("redirect-frame-focus", Fredirect_frame_focus, Sredirect_frame_focus,
Jim Blandy's avatar
Jim Blandy committed
794
       1, 2, 0,
Jim Blandy's avatar
Jim Blandy committed
795 796 797
  "Arrange for keystrokes typed at FRAME to be sent to FOCUS-FRAME.\n\
This means that, after reading a keystroke typed at FRAME,\n\
`last-event-frame' will be FOCUS-FRAME.\n\
Jim Blandy's avatar
Jim Blandy committed
798
\n\
Jim Blandy's avatar
Jim Blandy committed
799 800
If FOCUS-FRAME is omitted or eq to FRAME, any existing redirection is\n\
cancelled, and the frame again receives its own keystrokes.\n\
Jim Blandy's avatar
Jim Blandy committed
801
\n\
Jim Blandy's avatar
Jim Blandy committed
802 803
The redirection lasts until the next call to `redirect-frame-focus'\n\
or `select-frame'.\n\
Jim Blandy's avatar
Jim Blandy committed
804 805
\n\
This is useful for temporarily redirecting keystrokes to the minibuffer\n\
Jim Blandy's avatar
Jim Blandy committed
806 807 808
window when a frame doesn't have its own minibuffer.")
  (frame, focus_frame)
    Lisp_Object frame, focus_frame;
Jim Blandy's avatar
Jim Blandy committed
809
{
Jim Blandy's avatar
Jim Blandy committed
810
  CHECK_LIVE_FRAME (frame, 0);
Jim Blandy's avatar
Jim Blandy committed
811

Jim Blandy's avatar
Jim Blandy committed
812 813
  if (NILP (focus_frame))
    focus_frame = frame;
Jim Blandy's avatar
Jim Blandy committed
814
  else
Jim Blandy's avatar
Jim Blandy committed
815
    CHECK_LIVE_FRAME (focus_frame, 1);
Jim Blandy's avatar
Jim Blandy committed
816

Jim Blandy's avatar
Jim Blandy committed
817
  XFRAME (frame)->focus_frame = focus_frame;
Jim Blandy's avatar
Jim Blandy committed
818

Jim Blandy's avatar
Jim Blandy committed
819 820
  if (frame_rehighlight_hook)
    (*frame_rehighlight_hook) ();
Jim Blandy's avatar
Jim Blandy committed
821 822 823 824 825
  
  return Qnil;
}


Jim Blandy's avatar
Jim Blandy committed
826 827 828 829 830
DEFUN ("frame-focus", Fframe_focus, Sframe_focus, 1, 1, 0,
  "Return the frame to which FRAME's keystrokes are currently being sent.\n\
See `redirect-frame-focus'.")
  (frame)
    Lisp_Object frame;
Jim Blandy's avatar
Jim Blandy committed
831
{
Jim Blandy's avatar
Jim Blandy committed
832 833
  CHECK_LIVE_FRAME (frame, 0);
  return FRAME_FOCUS_FRAME (XFRAME (frame));
Jim Blandy's avatar
Jim Blandy committed
834 835 836
}


Jim Blandy's avatar
Jim Blandy committed
837 838

Lisp_Object
Jim Blandy's avatar
Jim Blandy committed
839 840
get_frame_param (frame, prop)
     register struct frame *frame;
Jim Blandy's avatar
Jim Blandy committed
841 842 843 844
     Lisp_Object prop;
{
  register Lisp_Object tem;

Jim Blandy's avatar
Jim Blandy committed
845
  tem = Fassq (prop, frame->param_alist);
Jim Blandy's avatar
Jim Blandy committed
846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867
  if (EQ (tem, Qnil))
    return tem;
  return Fcdr (tem);
}

void
store_in_alist (alistptr, propname, val)
     Lisp_Object *alistptr, val;
     char *propname;
{
  register Lisp_Object tem;
  register Lisp_Object prop;

  prop = intern (propname);
  tem = Fassq (prop, *alistptr);
  if (EQ (tem, Qnil))
    *alistptr = Fcons (Fcons (prop, val), *alistptr);
  else
    Fsetcdr (tem, val);
}

void
Jim Blandy's avatar
Jim Blandy committed
868 869
store_frame_param (f, prop, val)
     struct frame *f;
Jim Blandy's avatar
Jim Blandy committed
870 871 872 873
     Lisp_Object prop, val;
{
  register Lisp_Object tem;

Jim Blandy's avatar
Jim Blandy committed
874
  tem = Fassq (prop, f->param_alist);
Jim Blandy's avatar
Jim Blandy committed
875
  if (EQ (tem, Qnil))
Jim Blandy's avatar
Jim Blandy committed
876
    f->param_alist = Fcons (Fcons (prop, val), f->param_alist);
Jim Blandy's avatar
Jim Blandy committed
877 878
  else
    Fsetcdr (tem, val);
Jim Blandy's avatar
Jim Blandy committed
879 880 881 882 883 884 885

  if (EQ (prop, Qminibuffer)
      && XTYPE (val) == Lisp_Window)
    {
      if (! MINI_WINDOW_P (XWINDOW (val)))
	error ("Surrogate minibuffer windows must be minibuffer windows.");

Jim Blandy's avatar
Jim Blandy committed
886 887
      if (FRAME_HAS_MINIBUF (f) || FRAME_MINIBUF_ONLY_P (f))
	error ("Can't change the surrogate minibuffer of a frame with its own minibuffer.");
Jim Blandy's avatar
Jim Blandy committed
888 889

      /* Install the chosen minibuffer window, with proper buffer.  */
Jim Blandy's avatar
Jim Blandy committed
890
      f->minibuffer_window = val;
Jim Blandy's avatar
Jim Blandy committed
891
    }
Jim Blandy's avatar
Jim Blandy committed
892 893
}

Jim Blandy's avatar
Jim Blandy committed
894 895
DEFUN ("frame-parameters", Fframe_parameters, Sframe_parameters, 0, 1, 0,
  "Return the parameters-alist of frame FRAME.\n\
Jim Blandy's avatar
Jim Blandy committed
896
It is a list of elements of the form (PARM . VALUE), where PARM is a symbol.\n\
Jim Blandy's avatar
Jim Blandy committed
897 898
The meaningful PARMs depend on the kind of frame.\n\
If FRAME is omitted, return information on the currently selected frame.")
Jim Blandy's avatar
Jim Blandy committed
899 900
  (frame)
     Lisp_Object frame;