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ed8dad6b | 1 | /* Functions related to terminal devices. |
ab422c4d | 2 | Copyright (C) 2005-2013 Free Software Foundation, Inc. |
ed8dad6b KL |
3 | |
4 | This file is part of GNU Emacs. | |
5 | ||
9ec0b715 | 6 | GNU Emacs is free software: you can redistribute it and/or modify |
ed8dad6b | 7 | it under the terms of the GNU General Public License as published by |
9ec0b715 GM |
8 | the Free Software Foundation, either version 3 of the License, or |
9 | (at your option) any later version. | |
ed8dad6b KL |
10 | |
11 | GNU Emacs is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
9ec0b715 | 17 | along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */ |
ed8dad6b KL |
18 | |
19 | #include <config.h> | |
3f22b86f | 20 | |
60f5c938 | 21 | #include <stdio.h> |
ed8dad6b KL |
22 | |
23 | #include "lisp.h" | |
24 | #include "frame.h" | |
25 | #include "termchar.h" | |
26 | #include "termhooks.h" | |
27 | #include "charset.h" | |
28 | #include "coding.h" | |
29 | #include "keyboard.h" | |
30 | ||
6ed8eeff KL |
31 | /* Chain of all terminals currently in use. */ |
32 | struct terminal *terminal_list; | |
ed8dad6b | 33 | |
6ed8eeff KL |
34 | /* The first unallocated terminal id. */ |
35 | static int next_terminal_id; | |
ed8dad6b | 36 | |
6ed8eeff KL |
37 | /* The initial terminal device, created by initial_term_init. */ |
38 | struct terminal *initial_terminal; | |
ed8dad6b | 39 | |
959067a1 DA |
40 | static Lisp_Object Qterminal_live_p; |
41 | ||
f57e2426 | 42 | static void delete_initial_terminal (struct terminal *); |
ed8dad6b | 43 | |
3f22b86f | 44 | /* This setter is used only in this file, so it can be private. */ |
b0ab8123 | 45 | static void |
3f22b86f PE |
46 | tset_param_alist (struct terminal *t, Lisp_Object val) |
47 | { | |
48 | t->param_alist = val; | |
49 | } | |
50 | ||
ed8dad6b KL |
51 | \f |
52 | ||
53 | void | |
54 | ring_bell (struct frame *f) | |
55 | { | |
56 | if (!NILP (Vring_bell_function)) | |
57 | { | |
58 | Lisp_Object function; | |
59 | ||
60 | /* Temporarily set the global variable to nil | |
61 | so that if we get an error, it stays nil | |
62 | and we don't call it over and over. | |
63 | ||
64 | We don't specbind it, because that would carefully | |
65 | restore the bad value if there's an error | |
66 | and make the loop of errors happen anyway. */ | |
67 | ||
68 | function = Vring_bell_function; | |
69 | Vring_bell_function = Qnil; | |
70 | ||
71 | call0 (function); | |
72 | ||
73 | Vring_bell_function = function; | |
74 | } | |
6ed8eeff KL |
75 | else if (FRAME_TERMINAL (f)->ring_bell_hook) |
76 | (*FRAME_TERMINAL (f)->ring_bell_hook) (f); | |
ed8dad6b KL |
77 | } |
78 | ||
79 | void | |
80 | update_begin (struct frame *f) | |
81 | { | |
6ed8eeff KL |
82 | if (FRAME_TERMINAL (f)->update_begin_hook) |
83 | (*FRAME_TERMINAL (f)->update_begin_hook) (f); | |
ed8dad6b KL |
84 | } |
85 | ||
86 | void | |
87 | update_end (struct frame *f) | |
88 | { | |
6ed8eeff KL |
89 | if (FRAME_TERMINAL (f)->update_end_hook) |
90 | (*FRAME_TERMINAL (f)->update_end_hook) (f); | |
ed8dad6b KL |
91 | } |
92 | ||
93 | /* Specify how many text lines, from the top of the window, | |
94 | should be affected by insert-lines and delete-lines operations. | |
95 | This, and those operations, are used only within an update | |
96 | that is bounded by calls to update_begin and update_end. */ | |
97 | ||
98 | void | |
99 | set_terminal_window (struct frame *f, int size) | |
100 | { | |
6ed8eeff KL |
101 | if (FRAME_TERMINAL (f)->set_terminal_window_hook) |
102 | (*FRAME_TERMINAL (f)->set_terminal_window_hook) (f, size); | |
ed8dad6b KL |
103 | } |
104 | ||
105 | /* Move cursor to row/column position VPOS/HPOS. HPOS/VPOS are | |
106 | frame-relative coordinates. */ | |
107 | ||
108 | void | |
109 | cursor_to (struct frame *f, int vpos, int hpos) | |
110 | { | |
6ed8eeff KL |
111 | if (FRAME_TERMINAL (f)->cursor_to_hook) |
112 | (*FRAME_TERMINAL (f)->cursor_to_hook) (f, vpos, hpos); | |
ed8dad6b KL |
113 | } |
114 | ||
115 | /* Similar but don't take any account of the wasted characters. */ | |
116 | ||
117 | void | |
118 | raw_cursor_to (struct frame *f, int row, int col) | |
119 | { | |
6ed8eeff | 120 | if (FRAME_TERMINAL (f)->raw_cursor_to_hook) |
426994c3 | 121 | (*FRAME_TERMINAL (f)->raw_cursor_to_hook) (f, row, col); |
ed8dad6b KL |
122 | } |
123 | ||
124 | /* Erase operations */ | |
125 | ||
126 | /* Clear from cursor to end of frame. */ | |
127 | void | |
128 | clear_to_end (struct frame *f) | |
129 | { | |
6ed8eeff KL |
130 | if (FRAME_TERMINAL (f)->clear_to_end_hook) |
131 | (*FRAME_TERMINAL (f)->clear_to_end_hook) (f); | |
ed8dad6b KL |
132 | } |
133 | ||
134 | /* Clear entire frame */ | |
135 | ||
136 | void | |
137 | clear_frame (struct frame *f) | |
138 | { | |
6ed8eeff KL |
139 | if (FRAME_TERMINAL (f)->clear_frame_hook) |
140 | (*FRAME_TERMINAL (f)->clear_frame_hook) (f); | |
ed8dad6b KL |
141 | } |
142 | ||
143 | /* Clear from cursor to end of line. | |
144 | Assume that the line is already clear starting at column first_unused_hpos. | |
145 | ||
146 | Note that the cursor may be moved, on terminals lacking a `ce' string. */ | |
147 | ||
148 | void | |
149 | clear_end_of_line (struct frame *f, int first_unused_hpos) | |
150 | { | |
6ed8eeff KL |
151 | if (FRAME_TERMINAL (f)->clear_end_of_line_hook) |
152 | (*FRAME_TERMINAL (f)->clear_end_of_line_hook) (f, first_unused_hpos); | |
ed8dad6b KL |
153 | } |
154 | ||
155 | /* Output LEN glyphs starting at STRING at the nominal cursor position. | |
156 | Advance the nominal cursor over the text. */ | |
157 | ||
158 | void | |
159 | write_glyphs (struct frame *f, struct glyph *string, int len) | |
160 | { | |
6ed8eeff KL |
161 | if (FRAME_TERMINAL (f)->write_glyphs_hook) |
162 | (*FRAME_TERMINAL (f)->write_glyphs_hook) (f, string, len); | |
ed8dad6b KL |
163 | } |
164 | ||
165 | /* Insert LEN glyphs from START at the nominal cursor position. | |
166 | ||
167 | If start is zero, insert blanks instead of a string at start */ | |
168 | ||
169 | void | |
170 | insert_glyphs (struct frame *f, struct glyph *start, int len) | |
171 | { | |
172 | if (len <= 0) | |
173 | return; | |
174 | ||
6ed8eeff KL |
175 | if (FRAME_TERMINAL (f)->insert_glyphs_hook) |
176 | (*FRAME_TERMINAL (f)->insert_glyphs_hook) (f, start, len); | |
ed8dad6b KL |
177 | } |
178 | ||
179 | /* Delete N glyphs at the nominal cursor position. */ | |
180 | ||
181 | void | |
182 | delete_glyphs (struct frame *f, int n) | |
183 | { | |
6ed8eeff KL |
184 | if (FRAME_TERMINAL (f)->delete_glyphs_hook) |
185 | (*FRAME_TERMINAL (f)->delete_glyphs_hook) (f, n); | |
ed8dad6b KL |
186 | } |
187 | ||
188 | /* Insert N lines at vpos VPOS. If N is negative, delete -N lines. */ | |
189 | ||
190 | void | |
191 | ins_del_lines (struct frame *f, int vpos, int n) | |
192 | { | |
6ed8eeff KL |
193 | if (FRAME_TERMINAL (f)->ins_del_lines_hook) |
194 | (*FRAME_TERMINAL (f)->ins_del_lines_hook) (f, vpos, n); | |
ed8dad6b KL |
195 | } |
196 | ||
197 | ||
198 | \f | |
199 | ||
e0c3684a CY |
200 | /* Return the terminal object specified by TERMINAL. TERMINAL may be |
201 | a terminal object, a frame, or nil for the terminal device of the | |
653d4f43 | 202 | current frame. If THROW is false, return NULL for failure, |
e0c3684a | 203 | otherwise throw an error. */ |
ed8dad6b | 204 | |
6ed8eeff | 205 | struct terminal * |
653d4f43 | 206 | get_terminal (Lisp_Object terminal, bool throw) |
ed8dad6b | 207 | { |
6ed8eeff | 208 | struct terminal *result = NULL; |
ed8dad6b | 209 | |
6ed8eeff KL |
210 | if (NILP (terminal)) |
211 | terminal = selected_frame; | |
ed8dad6b | 212 | |
d30a25b3 SM |
213 | if (TERMINALP (terminal)) |
214 | result = XTERMINAL (terminal); | |
6ed8eeff | 215 | else if (FRAMEP (terminal)) |
e0c3684a | 216 | result = FRAME_TERMINAL (XFRAME (terminal)); |
ed8dad6b | 217 | |
d30a25b3 SM |
218 | if (result && !result->name) |
219 | result = NULL; | |
220 | ||
ed8dad6b | 221 | if (result == NULL && throw) |
6ed8eeff | 222 | wrong_type_argument (Qterminal_live_p, terminal); |
ed8dad6b KL |
223 | |
224 | return result; | |
225 | } | |
226 | ||
227 | \f | |
228 | ||
6ed8eeff | 229 | /* Create a new terminal object and add it to the terminal list. */ |
ed8dad6b | 230 | |
6ed8eeff KL |
231 | struct terminal * |
232 | create_terminal (void) | |
ed8dad6b | 233 | { |
d30a25b3 | 234 | struct terminal *terminal = allocate_terminal (); |
d6de49a1 | 235 | Lisp_Object terminal_coding, keyboard_coding; |
d30a25b3 | 236 | |
6ed8eeff KL |
237 | terminal->next_terminal = terminal_list; |
238 | terminal_list = terminal; | |
ed8dad6b | 239 | |
6ed8eeff | 240 | terminal->id = next_terminal_id++; |
ed8dad6b | 241 | |
23f86fce DA |
242 | terminal->keyboard_coding = xmalloc (sizeof (struct coding_system)); |
243 | terminal->terminal_coding = xmalloc (sizeof (struct coding_system)); | |
ed8dad6b | 244 | |
d6de49a1 EZ |
245 | /* If default coding systems for the terminal and the keyboard are |
246 | already defined, use them in preference to the defaults. This is | |
247 | needed when Emacs runs in daemon mode. */ | |
248 | keyboard_coding = | |
249 | find_symbol_value (intern ("default-keyboard-coding-system")); | |
250 | if (NILP (keyboard_coding) | |
251 | || EQ (keyboard_coding, Qunbound) | |
252 | || NILP (Fcoding_system_p (keyboard_coding))) | |
253 | keyboard_coding = Qno_conversion; | |
254 | terminal_coding = | |
255 | find_symbol_value (intern ("default-terminal-coding-system")); | |
256 | if (NILP (terminal_coding) | |
257 | || EQ (terminal_coding, Qunbound) | |
258 | || NILP (Fcoding_system_p (terminal_coding))) | |
259 | terminal_coding = Qundecided; | |
260 | ||
261 | setup_coding_system (keyboard_coding, terminal->keyboard_coding); | |
262 | setup_coding_system (terminal_coding, terminal->terminal_coding); | |
ed8dad6b | 263 | |
6ed8eeff | 264 | return terminal; |
ed8dad6b KL |
265 | } |
266 | ||
ab797f65 KL |
267 | /* Low-level function to close all frames on a terminal, remove it |
268 | from the terminal list and free its memory. */ | |
ed8dad6b KL |
269 | |
270 | void | |
6ed8eeff | 271 | delete_terminal (struct terminal *terminal) |
ed8dad6b | 272 | { |
6ed8eeff | 273 | struct terminal **tp; |
ed8dad6b | 274 | Lisp_Object tail, frame; |
a98f1617 | 275 | |
56f2de10 | 276 | /* Protect against recursive calls. delete_frame calls the |
ab797f65 | 277 | delete_terminal_hook when we delete our last frame. */ |
d30a25b3 | 278 | if (!terminal->name) |
a98f1617 | 279 | return; |
d30a25b3 SM |
280 | xfree (terminal->name); |
281 | terminal->name = NULL; | |
a98f1617 | 282 | |
cbae07d5 | 283 | /* Check for live frames that are still on this terminal. */ |
ed8dad6b KL |
284 | FOR_EACH_FRAME (tail, frame) |
285 | { | |
286 | struct frame *f = XFRAME (frame); | |
6ed8eeff | 287 | if (FRAME_LIVE_P (f) && f->terminal == terminal) |
ed8dad6b | 288 | { |
56f2de10 MR |
289 | /* Pass Qnoelisp rather than Qt. */ |
290 | delete_frame (frame, Qnoelisp); | |
ed8dad6b KL |
291 | } |
292 | } | |
293 | ||
6ed8eeff KL |
294 | for (tp = &terminal_list; *tp != terminal; tp = &(*tp)->next_terminal) |
295 | if (! *tp) | |
1088b922 | 296 | emacs_abort (); |
6ed8eeff KL |
297 | *tp = terminal->next_terminal; |
298 | ||
d30a25b3 SM |
299 | xfree (terminal->keyboard_coding); |
300 | terminal->keyboard_coding = NULL; | |
301 | xfree (terminal->terminal_coding); | |
302 | terminal->terminal_coding = NULL; | |
56f2de10 | 303 | |
6ed8eeff | 304 | if (terminal->kboard && --terminal->kboard->reference_count == 0) |
d30a25b3 SM |
305 | { |
306 | delete_kboard (terminal->kboard); | |
307 | terminal->kboard = NULL; | |
308 | } | |
ed8dad6b KL |
309 | } |
310 | ||
58555d81 SM |
311 | Lisp_Object Qrun_hook_with_args; |
312 | static Lisp_Object Qdelete_terminal_functions; | |
a7ca3326 | 313 | DEFUN ("delete-terminal", Fdelete_terminal, Sdelete_terminal, 0, 2, 0, |
6ed8eeff | 314 | doc: /* Delete TERMINAL by deleting all frames on it and closing the terminal. |
e173bbce CY |
315 | TERMINAL may be a terminal object, a frame, or nil (meaning the |
316 | selected frame's terminal). | |
ed8dad6b KL |
317 | |
318 | Normally, you may not delete a display if all other displays are suspended, | |
319 | but if the second argument FORCE is non-nil, you may do so. */) | |
5842a27b | 320 | (Lisp_Object terminal, Lisp_Object force) |
ed8dad6b | 321 | { |
5b8de9c5 | 322 | struct terminal *t = get_terminal (terminal, 0); |
ed8dad6b | 323 | |
6ed8eeff | 324 | if (!t) |
ed8dad6b KL |
325 | return Qnil; |
326 | ||
5b8de9c5 SM |
327 | if (NILP (force)) |
328 | { | |
329 | struct terminal *p = terminal_list; | |
330 | while (p && (p == t || !TERMINAL_ACTIVE_P (p))) | |
331 | p = p->next_terminal; | |
56f2de10 | 332 | |
5b8de9c5 SM |
333 | if (!p) |
334 | error ("Attempt to delete the sole active display terminal"); | |
335 | } | |
ed8dad6b | 336 | |
58555d81 SM |
337 | if (NILP (Vrun_hooks)) |
338 | ; | |
339 | else if (EQ (force, Qnoelisp)) | |
340 | pending_funcalls | |
341 | = Fcons (list3 (Qrun_hook_with_args, | |
342 | Qdelete_terminal_functions, terminal), | |
343 | pending_funcalls); | |
344 | else | |
345 | safe_call2 (Qrun_hook_with_args, Qdelete_terminal_functions, terminal); | |
346 | ||
6ed8eeff KL |
347 | if (t->delete_terminal_hook) |
348 | (*t->delete_terminal_hook) (t); | |
ed8dad6b | 349 | else |
6ed8eeff | 350 | delete_terminal (t); |
ed8dad6b KL |
351 | |
352 | return Qnil; | |
353 | } | |
354 | ||
6ed8eeff | 355 | \f |
a7ca3326 | 356 | DEFUN ("frame-terminal", Fframe_terminal, Sframe_terminal, 0, 1, 0, |
6ed8eeff KL |
357 | doc: /* Return the terminal that FRAME is displayed on. |
358 | If FRAME is nil, the selected frame is used. | |
359 | ||
360 | The terminal device is represented by its integer identifier. */) | |
5842a27b | 361 | (Lisp_Object frame) |
6ed8eeff | 362 | { |
d9f07150 | 363 | struct terminal *t = FRAME_TERMINAL (decode_live_frame (frame)); |
6ed8eeff KL |
364 | |
365 | if (!t) | |
366 | return Qnil; | |
367 | else | |
d30a25b3 SM |
368 | { |
369 | Lisp_Object terminal; | |
370 | XSETTERMINAL (terminal, t); | |
371 | return terminal; | |
372 | } | |
6ed8eeff KL |
373 | } |
374 | ||
375 | DEFUN ("terminal-live-p", Fterminal_live_p, Sterminal_live_p, 1, 1, 0, | |
376 | doc: /* Return non-nil if OBJECT is a terminal which has not been deleted. | |
377 | Value is nil if OBJECT is not a live display terminal. | |
378 | If object is a live display terminal, the return value indicates what | |
379 | sort of output terminal it uses. See the documentation of `framep' for | |
d30a25b3 | 380 | possible return values. */) |
5842a27b | 381 | (Lisp_Object object) |
ed8dad6b | 382 | { |
6ed8eeff | 383 | struct terminal *t; |
56f2de10 | 384 | |
6ed8eeff | 385 | t = get_terminal (object, 0); |
ed8dad6b | 386 | |
6ed8eeff | 387 | if (!t) |
ed8dad6b KL |
388 | return Qnil; |
389 | ||
6ed8eeff | 390 | switch (t->type) |
ed8dad6b KL |
391 | { |
392 | case output_initial: /* The initial frame is like a termcap frame. */ | |
393 | case output_termcap: | |
394 | return Qt; | |
395 | case output_x_window: | |
396 | return Qx; | |
397 | case output_w32: | |
398 | return Qw32; | |
399 | case output_msdos_raw: | |
400 | return Qpc; | |
edfda783 AR |
401 | case output_ns: |
402 | return Qns; | |
ed8dad6b | 403 | default: |
1088b922 | 404 | emacs_abort (); |
ed8dad6b KL |
405 | } |
406 | } | |
407 | ||
6ed8eeff | 408 | DEFUN ("terminal-list", Fterminal_list, Sterminal_list, 0, 0, 0, |
d30a25b3 | 409 | doc: /* Return a list of all terminal devices. */) |
5842a27b | 410 | (void) |
ed8dad6b | 411 | { |
d30a25b3 | 412 | Lisp_Object terminal, terminals = Qnil; |
6ed8eeff | 413 | struct terminal *t; |
ed8dad6b | 414 | |
6ed8eeff | 415 | for (t = terminal_list; t; t = t->next_terminal) |
d30a25b3 SM |
416 | { |
417 | XSETTERMINAL (terminal, t); | |
418 | terminals = Fcons (terminal, terminals); | |
419 | } | |
ed8dad6b | 420 | |
6ed8eeff | 421 | return terminals; |
ed8dad6b KL |
422 | } |
423 | ||
6ed8eeff KL |
424 | DEFUN ("terminal-name", Fterminal_name, Sterminal_name, 0, 1, 0, |
425 | doc: /* Return the name of the terminal device TERMINAL. | |
ed8dad6b KL |
426 | It is not guaranteed that the returned value is unique among opened devices. |
427 | ||
e173bbce | 428 | TERMINAL may be a terminal object, a frame, or nil (meaning the |
6ed8eeff | 429 | selected frame's terminal). */) |
5842a27b | 430 | (Lisp_Object terminal) |
ed8dad6b | 431 | { |
c5911e55 SM |
432 | struct terminal *t |
433 | = TERMINALP (terminal) ? XTERMINAL (terminal) : get_terminal (terminal, 1); | |
ed8dad6b | 434 | |
c5911e55 | 435 | return t->name ? build_string (t->name) : Qnil; |
ed8dad6b KL |
436 | } |
437 | ||
438 | ||
439 | \f | |
6ed8eeff | 440 | /* Set the value of terminal parameter PARAMETER in terminal D to VALUE. |
ed8dad6b KL |
441 | Return the previous value. */ |
442 | ||
426994c3 | 443 | static Lisp_Object |
971de7fb | 444 | store_terminal_param (struct terminal *t, Lisp_Object parameter, Lisp_Object value) |
ed8dad6b | 445 | { |
6ed8eeff | 446 | Lisp_Object old_alist_elt = Fassq (parameter, t->param_alist); |
ed8dad6b KL |
447 | if (EQ (old_alist_elt, Qnil)) |
448 | { | |
3f22b86f | 449 | tset_param_alist (t, Fcons (Fcons (parameter, value), t->param_alist)); |
ed8dad6b KL |
450 | return Qnil; |
451 | } | |
452 | else | |
453 | { | |
454 | Lisp_Object result = Fcdr (old_alist_elt); | |
455 | Fsetcdr (old_alist_elt, value); | |
456 | return result; | |
457 | } | |
458 | } | |
459 | ||
460 | ||
461 | DEFUN ("terminal-parameters", Fterminal_parameters, Sterminal_parameters, 0, 1, 0, | |
462 | doc: /* Return the parameter-alist of terminal TERMINAL. | |
463 | The value is a list of elements of the form (PARM . VALUE), where PARM | |
464 | is a symbol. | |
465 | ||
e173bbce CY |
466 | TERMINAL can be a terminal object, a frame, or nil (meaning the |
467 | selected frame's terminal). */) | |
5842a27b | 468 | (Lisp_Object terminal) |
ed8dad6b | 469 | { |
c5911e55 SM |
470 | struct terminal *t |
471 | = TERMINALP (terminal) ? XTERMINAL (terminal) : get_terminal (terminal, 1); | |
6ed8eeff | 472 | return Fcopy_alist (t->param_alist); |
ed8dad6b KL |
473 | } |
474 | ||
475 | DEFUN ("terminal-parameter", Fterminal_parameter, Sterminal_parameter, 2, 2, 0, | |
476 | doc: /* Return TERMINAL's value for parameter PARAMETER. | |
e173bbce CY |
477 | TERMINAL can be a terminal object, a frame, or nil (meaning the |
478 | selected frame's terminal). */) | |
5842a27b | 479 | (Lisp_Object terminal, Lisp_Object parameter) |
ed8dad6b KL |
480 | { |
481 | Lisp_Object value; | |
c5911e55 SM |
482 | struct terminal *t |
483 | = TERMINALP (terminal) ? XTERMINAL (terminal) : get_terminal (terminal, 1); | |
ed8dad6b | 484 | CHECK_SYMBOL (parameter); |
6ed8eeff | 485 | value = Fcdr (Fassq (parameter, t->param_alist)); |
ed8dad6b KL |
486 | return value; |
487 | } | |
488 | ||
ed8dad6b KL |
489 | DEFUN ("set-terminal-parameter", Fset_terminal_parameter, |
490 | Sset_terminal_parameter, 3, 3, 0, | |
491 | doc: /* Set TERMINAL's value for parameter PARAMETER to VALUE. | |
492 | Return the previous value of PARAMETER. | |
493 | ||
e173bbce CY |
494 | TERMINAL can be a terminal object, a frame or nil (meaning the |
495 | selected frame's terminal). */) | |
5842a27b | 496 | (Lisp_Object terminal, Lisp_Object parameter, Lisp_Object value) |
ed8dad6b | 497 | { |
c5911e55 SM |
498 | struct terminal *t |
499 | = TERMINALP (terminal) ? XTERMINAL (terminal) : get_terminal (terminal, 1); | |
6ed8eeff | 500 | return store_terminal_param (t, parameter, value); |
ed8dad6b KL |
501 | } |
502 | ||
503 | \f | |
504 | ||
6ed8eeff KL |
505 | /* Create the bootstrap display terminal for the initial frame. |
506 | Returns a terminal of type output_initial. */ | |
ed8dad6b | 507 | |
6ed8eeff KL |
508 | struct terminal * |
509 | init_initial_terminal (void) | |
ed8dad6b | 510 | { |
6ed8eeff | 511 | if (initialized || terminal_list || tty_list) |
1088b922 | 512 | emacs_abort (); |
ed8dad6b | 513 | |
6ed8eeff KL |
514 | initial_terminal = create_terminal (); |
515 | initial_terminal->type = output_initial; | |
516 | initial_terminal->name = xstrdup ("initial_terminal"); | |
517 | initial_terminal->kboard = initial_kboard; | |
6ed8eeff | 518 | initial_terminal->delete_terminal_hook = &delete_initial_terminal; |
ed8dad6b KL |
519 | /* All other hooks are NULL. */ |
520 | ||
6ed8eeff | 521 | return initial_terminal; |
ed8dad6b KL |
522 | } |
523 | ||
6ed8eeff KL |
524 | /* Deletes the bootstrap terminal device. |
525 | Called through delete_terminal_hook. */ | |
ed8dad6b | 526 | |
6ed8eeff KL |
527 | static void |
528 | delete_initial_terminal (struct terminal *terminal) | |
ed8dad6b | 529 | { |
6ed8eeff | 530 | if (terminal != initial_terminal) |
1088b922 | 531 | emacs_abort (); |
ed8dad6b | 532 | |
6ed8eeff KL |
533 | delete_terminal (terminal); |
534 | initial_terminal = NULL; | |
ed8dad6b KL |
535 | } |
536 | ||
537 | void | |
971de7fb | 538 | syms_of_terminal (void) |
ed8dad6b KL |
539 | { |
540 | ||
29208e82 | 541 | DEFVAR_LISP ("ring-bell-function", Vring_bell_function, |
ed8dad6b KL |
542 | doc: /* Non-nil means call this function to ring the bell. |
543 | The function should accept no arguments. */); | |
544 | Vring_bell_function = Qnil; | |
545 | ||
29208e82 | 546 | DEFVAR_LISP ("delete-terminal-functions", Vdelete_terminal_functions, |
58555d81 SM |
547 | doc: /* Special hook run when a terminal is deleted. |
548 | Each function is called with argument, the terminal. | |
549 | This may be called just before actually deleting the terminal, | |
550 | or some time later. */); | |
551 | Vdelete_terminal_functions = Qnil; | |
959067a1 DA |
552 | |
553 | DEFSYM (Qterminal_live_p, "terminal-live-p"); | |
cd3520a4 JB |
554 | DEFSYM (Qdelete_terminal_functions, "delete-terminal-functions"); |
555 | DEFSYM (Qrun_hook_with_args, "run-hook-with-args"); | |
58555d81 | 556 | |
6ed8eeff KL |
557 | defsubr (&Sdelete_terminal); |
558 | defsubr (&Sframe_terminal); | |
559 | defsubr (&Sterminal_live_p); | |
560 | defsubr (&Sterminal_list); | |
561 | defsubr (&Sterminal_name); | |
ed8dad6b KL |
562 | defsubr (&Sterminal_parameters); |
563 | defsubr (&Sterminal_parameter); | |
ed8dad6b KL |
564 | defsubr (&Sset_terminal_parameter); |
565 | ||
d67b4f80 | 566 | Fprovide (intern_c_string ("multi-tty"), Qnil); |
ed8dad6b | 567 | } |