1 /*----------------------------------------------------------------------*
2 * File: main.C
3 *----------------------------------------------------------------------*
4 *
5 * All portions of code are copyright by their respective author/s.
6 * Copyright (c) 1992 John Bovey, University of Kent at Canterbury <jdb@ukc.ac.uk>
7 * - original version
8 * Copyright (c) 1994 Robert Nation <nation@rocket.sanders.lockheed.com>
9 * - extensive modifications
10 * Copyright (c) 1995 Garrett D'Amore <garrett@netcom.com>
11 * Copyright (c) 1997 mj olesen <olesen@me.QueensU.CA>
12 * - extensive modifications
13 * Copyright (c) 1997,1998 Oezguer Kesim <kesim@math.fu-berlin.de>
14 * Copyright (c) 1998-2001 Geoff Wing <gcw@pobox.com>
15 * - extensive modifications
16 * Copyright (c) 2003-2014 Marc Lehmann <schmorp@schmorp.de>
17 * Copyright (c) 2015 Emanuele Giaquinta <e.giaquinta@glauco.it>
18 *
19 * This program is free software; you can redistribute it and/or modify
20 * it under the terms of the GNU General Public License as published by
21 * the Free Software Foundation; either version 3 of the License, or
22 * (at your option) any later version.
23 *
24 * This program is distributed in the hope that it will be useful,
25 * but WITHOUT ANY WARRANTY; without even the implied warranty of
26 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
27 * GNU General Public License for more details.
28 *
29 * You should have received a copy of the GNU General Public License
30 * along with this program; if not, write to the Free Software
31 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
32 *---------------------------------------------------------------------*/
33
34 #include "../config.h" /* NECESSARY */
35 #include "rxvt.h" /* NECESSARY */
36 #include "init.h"
37 #include "keyboard.h"
38 #include "rxvtperl.h"
39
40 #include <limits>
41
42 #include <assert.h>
43 #include <signal.h>
44 #include <string.h>
45
46 #include <termios.h>
47
48 #ifdef HAVE_XSETLOCALE
49 # define X_LOCALE
50 # include <X11/Xlocale.h>
51 #else
52 # include <locale.h>
53 #endif
54
55 struct termios rxvt_term::def_tio;
56 vector<rxvt_term *> rxvt_term::termlist;
57
58 // used to tell global functions which terminal instance is "active"
59 rxvt_t rxvt_current_term;
60
61 static char curlocale[128], savelocale[128];
62
63 bool
rxvt_set_locale(const char * locale)64 rxvt_set_locale (const char *locale) noexcept
65 {
66 int size = strlen (locale) + 1;
67
68 if (size > sizeof (curlocale))
69 rxvt_fatal ("locale string too long, aborting.\n");
70
71 if (!locale || !memcmp (locale, curlocale, size))
72 return false;
73
74 memcpy (curlocale, locale, size);
75 setlocale (LC_CTYPE, curlocale);
76 return true;
77 }
78
79 void
rxvt_push_locale(const char * locale)80 rxvt_push_locale (const char *locale) noexcept
81 {
82 strcpy (savelocale, curlocale);
83 rxvt_set_locale (locale);
84 }
85
86 void
rxvt_pop_locale()87 rxvt_pop_locale () noexcept
88 {
89 rxvt_set_locale (savelocale);
90 }
91
92 #if ENABLE_COMBINING
93 class rxvt_composite_vec rxvt_composite;
94
compose(unicode_t c1,unicode_t c2)95 text_t rxvt_composite_vec::compose (unicode_t c1, unicode_t c2)
96 {
97 compose_char *cc;
98
99 // break compose chains, as stupid readline really likes to duplicate
100 // composing characters for some reason, near the end of a line.
101 cc = (*this)[c1];
102 while (cc)
103 {
104 if (cc->c2 == c2) return c1;
105 cc = (*this)[cc->c1];
106 }
107
108 // check to see whether this combination already exists otherwise
109 for (cc = v.begin (); cc < v.end (); cc++)
110 if (cc->c1 == c1 && cc->c2 == c2)
111 return COMPOSE_LO + (cc - v.begin ());
112
113 // allocate a new combination
114 if (v.size () == COMPOSE_HI - COMPOSE_LO + 1)
115 {
116 static int seen;
117
118 if (!seen++)
119 rxvt_warn ("too many unrepresentable composite characters, try --enable-unicode3\n");
120
121 return REPLACEMENT_CHAR;
122 }
123
124 v.push_back (compose_char (c1, c2));
125
126 return v.size () - 1 + COMPOSE_LO;
127 }
128
129 template<typename T>
expand(unicode_t c,T * r)130 int rxvt_composite_vec::expand (unicode_t c, T *r)
131 {
132 compose_char *cc = (*this)[c];
133
134 if (!cc)
135 {
136 if (r) *r = c;
137 return 1;
138 }
139
140 int len = expand (cc->c1, r);
141
142 if (r) r += len;
143
144 if (cc->c2 != NOCHAR)
145 {
146 len++;
147 if (r) *r++ = cc->c2;
148 }
149
150 return len;
151 }
152
153 template int rxvt_composite_vec::expand<text_t> (unicode_t c, text_t *);
154 template int rxvt_composite_vec::expand<wchar_t> (unicode_t c, wchar_t *);
155 #endif
156
rxvt_term()157 rxvt_term::rxvt_term ()
158 {
159 #ifdef CURSOR_BLINK
160 cursor_blink_ev.set <rxvt_term, &rxvt_term::cursor_blink_cb> (this); cursor_blink_ev.set (0., CURSOR_BLINK_INTERVAL);
161 #endif
162 #ifdef TEXT_BLINK
163 text_blink_ev.set <rxvt_term, &rxvt_term::text_blink_cb> (this); text_blink_ev.set (0., TEXT_BLINK_INTERVAL);
164 #endif
165 #ifndef NO_SCROLLBAR_BUTTON_CONTINUAL_SCROLLING
166 cont_scroll_ev.set <rxvt_term, &rxvt_term::cont_scroll_cb> (this);
167 #endif
168 #ifdef SELECTION_SCROLLING
169 sel_scroll_ev.set <rxvt_term, &rxvt_term::sel_scroll_cb> (this);
170 #endif
171 #if defined(MOUSE_WHEEL) && defined(MOUSE_SLIP_WHEELING)
172 slip_wheel_ev.set <rxvt_term, &rxvt_term::slip_wheel_cb> (this);
173 #endif
174 #if ENABLE_PERL
175 rootwin_ev.set <rxvt_term, &rxvt_term::rootwin_cb> (this),
176 #endif
177 scrollbar_ev.set <rxvt_term, &rxvt_term::x_cb> (this),
178 #if USE_XIM
179 im_ev.set <rxvt_term, &rxvt_term::im_cb> (this),
180 #endif
181 #ifdef POINTER_BLANK
182 pointer_ev.set <rxvt_term, &rxvt_term::pointer_cb> (this);
183 #endif
184 #ifndef NO_BELL
185 bell_ev.set <rxvt_term, &rxvt_term::bell_cb> (this);
186 #endif
187 child_ev.set <rxvt_term, &rxvt_term::child_cb> (this);
188 flush_ev.set <rxvt_term, &rxvt_term::flush_cb> (this);
189 destroy_ev.set <rxvt_term, &rxvt_term::destroy_cb> (this);
190 pty_ev.set <rxvt_term, &rxvt_term::pty_cb> (this);
191 termwin_ev.set <rxvt_term, &rxvt_term::x_cb> (this);
192 vt_ev.set <rxvt_term, &rxvt_term::x_cb> (this);
193
194 cmdbuf_ptr = cmdbuf_endp = cmdbuf_base;
195
196 termlist.push_back (this);
197
198 #ifdef KEYSYM_RESOURCE
199 keyboard = new keyboard_manager;
200 #endif
201 }
202
203 // clean up the most important stuff, do *not* call x or free mem etc.
204 // for use before an emergency exit
205 void
emergency_cleanup()206 rxvt_term::emergency_cleanup ()
207 {
208 if (cmd_pid)
209 kill (-cmd_pid, SIGHUP);
210
211 pty_ev.stop ();
212 delete pty; pty = 0;
213 }
214
~rxvt_term()215 rxvt_term::~rxvt_term ()
216 {
217 termlist.erase (find (termlist.begin (), termlist.end(), this));
218
219 emergency_cleanup ();
220
221 #if ENABLE_STYLES
222 for (int i = RS_styleCount; --i; )
223 if (fontset[i] != fontset[0])
224 delete fontset[i];
225 #endif
226 delete fontset[0];
227
228 #if HAVE_IMG
229 delete bg_img;
230 #endif
231
232 if (display)
233 {
234 selection_clear ();
235 selection_clear (true);
236
237 #if USE_XIM
238 im_destroy ();
239 #endif
240 scrollBar.destroy ();
241
242 if (gc)
243 XFreeGC (dpy, gc);
244
245 delete drawable;
246
247 // destroy all windows
248 if (parent)
249 XDestroyWindow (dpy, parent);
250
251 for (int i = 0; i < TOTAL_COLORS; i++)
252 if (ISSET_PIXCOLOR (i))
253 {
254 pix_colors_focused [i].free (this);
255 #if OFF_FOCUS_FADING
256 if (rs[Rs_fade])
257 pix_colors_unfocused [i].free (this);
258 #endif
259 }
260
261 clear ();
262
263 display->flush (); /* ideally .put should do this */
264 displays.put (display);
265 }
266
267 scr_release ();
268
269 /* clear all resources */
270 for (int i = 0; i < allocated.size (); i++)
271 free (allocated [i]);
272
273 free (selection.text);
274 free (selection.clip_text);
275 free (locale);
276 free (v_buffer);
277
278 delete selection_req;
279
280 if (env && memcmp (env, envv->begin (), envv->size () * sizeof (char *)))
281 rxvt_warn ("env has been modified, probably as a result of a lib calling setenv.\n");
282
283 delete [] env;
284
285 delete envv;
286 delete argv;
287
288 #ifdef KEYSYM_RESOURCE
289 delete keyboard;
290 #endif
291 #ifndef NO_RESOURCES
292 XrmDestroyDatabase (option_db);
293 #endif
294
295 SET_R ((rxvt_term *)0);
296 }
297
298 // child has exited, usually destroys
299 void
child_cb(ev::child & w,int status)300 rxvt_term::child_cb (ev::child &w, int status)
301 {
302 HOOK_INVOKE ((this, HOOK_CHILD_EXIT, DT_INT, status, DT_END));
303
304 cmd_pid = 0;
305
306 if (!option (Opt_hold))
307 destroy ();
308 }
309
310 void
destroy()311 rxvt_term::destroy ()
312 {
313 if (destroy_ev.is_active ())
314 return;
315
316 HOOK_INVOKE ((this, HOOK_DESTROY, DT_END));
317
318 #if ENABLE_OVERLAY
319 scr_overlay_off ();
320 #endif
321
322 if (display)
323 {
324 #if USE_XIM
325 im_ev.stop (display);
326 #endif
327 scrollbar_ev.stop (display);
328 #if ENABLE_PERL
329 rootwin_ev.stop (display);
330 #endif
331 termwin_ev.stop (display);
332 vt_ev.stop (display);
333 }
334
335 flush_ev.stop ();
336 pty_ev.stop ();
337 #ifdef CURSOR_BLINK
338 cursor_blink_ev.stop ();
339 #endif
340 #ifdef TEXT_BLINK
341 text_blink_ev.stop ();
342 #endif
343 #ifndef NO_SCROLLBAR_BUTTON_CONTINUAL_SCROLLING
344 cont_scroll_ev.stop ();
345 #endif
346 #ifdef SELECTION_SCROLLING
347 sel_scroll_ev.stop ();
348 #endif
349 #ifdef POINTER_BLANK
350 pointer_ev.stop ();
351 #endif
352
353 destroy_ev.start ();
354 }
355
356 void
destroy_cb(ev::idle & w,int revents)357 rxvt_term::destroy_cb (ev::idle &w, int revents)
358 {
359 make_current ();
360
361 delete this;
362 }
363
364 void
set_option(uint8_t opt,bool set)365 rxvt_term::set_option (uint8_t opt, bool set) noexcept
366 {
367 if (!opt)
368 return;
369
370 uint8_t mask = 1 << (opt & 7);
371 uint8_t &val = options [opt >> 3];
372
373 val = val & ~mask | (set ? mask : 0);
374 }
375
376 /*----------------------------------------------------------------------*/
377 /*
378 * Exit gracefully, clearing the utmp entry and restoring tty attributes
379 */
380 static XErrorHandler old_xerror_handler;
381
382 static void
rxvt_emergency_cleanup()383 rxvt_emergency_cleanup ()
384 {
385 for (rxvt_term **t = rxvt_term::termlist.begin (); t < rxvt_term::termlist.end (); t++)
386 (*t)->emergency_cleanup ();
387 }
388
389 #if !ENABLE_MINIMAL
390 static void ecb_cold
print_x_error(Display * dpy,XErrorEvent * event)391 print_x_error (Display *dpy, XErrorEvent *event)
392 {
393 char buffer[BUFSIZ];
394 char mesg[BUFSIZ];
395 char number[32];
396
397 rxvt_warn ("An X Error occurred, trying to continue after report.\n");
398
399 XGetErrorDatabaseText (dpy, "XlibMessage", "ErrorSerial", "Error Serial #%d", mesg, BUFSIZ);
400 snprintf (buffer, BUFSIZ, "+ %s\n", mesg); rxvt_warn (buffer, event->serial);
401
402 XGetErrorText (dpy, event->error_code, buffer, BUFSIZ);
403 XGetErrorDatabaseText (dpy, "XlibMessage", "XError", "X Error", mesg, BUFSIZ);
404 rxvt_warn ("+ %s: %s\n", mesg, buffer);
405
406 XGetErrorDatabaseText (dpy, "XlibMessage", "MajorCode", "Request Major code %d", mesg, BUFSIZ);
407 snprintf (buffer, BUFSIZ, "+ %s\n", mesg); rxvt_warn (buffer, event->request_code);
408
409 if (event->request_code >= 128)
410 {
411 #if 0
412 /* XListExtensions and probably query extensions hangs when there are multiple queues errors */
413 int nexts;
414 char **exts = XListExtensions (dpy, &nexts);
415
416 while (nexts)
417 {
418 char *extname = exts [nexts - 1];
419 int major, first_event, first_error;
420
421 if (XQueryExtension (dpy, extname, &major, &first_event, &first_error) && major == event->request_code)
422 {
423 XGetErrorDatabaseText (dpy, "XlibMessage", "MinorCode", "Request Minor code %d", mesg, BUFSIZ);
424 rxvt_warn ("+ (which is extension %s minor code %d)\n", extname, event->minor_code);
425
426 snprintf (buffer, BUFSIZ, "%s.%d", extname, event->minor_code);
427 XGetErrorDatabaseText (dpy, "XRequest", buffer, "an unregistered minor code", buffer, BUFSIZ);
428 rxvt_warn ("+ (which is %s)\n", buffer);
429
430 break;
431 }
432
433 printf ("nextss %d %s\n", nexts, extname);//D
434 --nexts;
435 ++exts;
436 }
437 #else
438 int nexts = 0;
439 char **exts = 0;
440 #endif
441
442 if (!nexts)
443 {
444 rxvt_warn ("+ (which is an unknown extension)\n", buffer);
445
446 XGetErrorDatabaseText (dpy, "XlibMessage", "MinorCode", "Request Minor code %d", mesg, BUFSIZ);
447 snprintf (buffer, BUFSIZ, "+ %s\n", mesg); rxvt_warn (buffer, event->minor_code);
448
449 #if 0
450 sprintf (number, "RENDER.%d", event->minor_code);
451 XGetErrorDatabaseText (dpy, "XRequest", number, "", buffer, BUFSIZ);
452 rxvt_warn ("+ (which is %s)\n", buffer);
453 #endif
454 }
455
456 XFreeExtensionList (exts);
457 }
458 else
459 {
460 sprintf (number, "%d", event->request_code);
461 XGetErrorDatabaseText (dpy, "XRequest", number, "", buffer, BUFSIZ);
462 rxvt_warn ("+ (which is %s)\n", buffer);
463 }
464
465 if (event->error_code == BadWindow
466 || event->error_code == BadPixmap
467 || event->error_code == BadCursor
468 || event->error_code == BadFont
469 || event->error_code == BadDrawable
470 || event->error_code == BadColor
471 || event->error_code == BadGC
472 || event->error_code == BadIDChoice
473 || event->error_code == BadValue
474 || event->error_code == BadAtom)
475 {
476 if (event->error_code == BadValue)
477 XGetErrorDatabaseText (dpy, "XlibMessage", "Value", "Value 0x%x", mesg, BUFSIZ);
478 else if (event->error_code == BadAtom)
479 XGetErrorDatabaseText (dpy, "XlibMessage", "AtomID", "AtomID 0x%x", mesg, BUFSIZ);
480 else
481 XGetErrorDatabaseText (dpy, "XlibMessage", "ResourceID", "ResourceID 0x%x", mesg, BUFSIZ);
482
483 snprintf (buffer, BUFSIZ, "+ %s\n", mesg); rxvt_warn (buffer, event->resourceid);
484 }
485 }
486 #endif
487
488 int ecb_cold
rxvt_xerror_handler(Display * display,XErrorEvent * event)489 rxvt_xerror_handler (Display *display, XErrorEvent *event)
490 {
491 if (GET_R && GET_R->allowedxerror == -1)
492 GET_R->allowedxerror = event->error_code;
493 else
494 {
495 // GET_R is most likely not the terminal which caused the error,
496 // so just output the error and continue
497 #if ENABLE_MINIMAL
498 old_xerror_handler (display, event);
499 #else
500 print_x_error (display, event);
501 #endif
502 }
503
504 return 0;
505 }
506
507 int ecb_cold
rxvt_xioerror_handler(Display * display)508 rxvt_xioerror_handler (Display *display)
509 {
510 rxvt_warn ("X connection to '%s' broken, unable to recover, exiting.\n",
511 DisplayString (display));
512 rxvt_emergency_cleanup ();
513 _exit (EXIT_FAILURE);
514 }
515
516 static struct sig_handlers
517 {
518 ev::sig sw_term, sw_int;
519
520 /*
521 * Catch a fatal signal and tidy up before quitting
522 */
523 void sig_term (ev::sig &w, int revents);
524
sig_handlerssig_handlers525 sig_handlers ()
526 {
527 sw_term.set<sig_handlers, &sig_handlers::sig_term> (this);
528 sw_int .set<sig_handlers, &sig_handlers::sig_term> (this);
529 }
530 } sig_handlers;
531
532 void
sig_term(ev::sig & w,int revents)533 sig_handlers::sig_term (ev::sig &w, int revents)
534 {
535 rxvt_emergency_cleanup ();
536 w.stop ();
537 kill (getpid (), w.signum);
538 }
539
540 static void
rxvt_get_ttymode(struct termios * tio)541 rxvt_get_ttymode (struct termios *tio)
542 {
543 if (tcgetattr (STDIN_FILENO, tio) < 0)
544 memset (tio, 0, sizeof (struct termios));
545
546 for (int i = 0; i < NCCS; i++)
547 tio->c_cc[i] = VDISABLE;
548
549 tio->c_cc[VINTR] = CINTR;
550 tio->c_cc[VQUIT] = CQUIT;
551 tio->c_cc[VERASE] = CERASE;
552 #ifdef VERASE2
553 tio->c_cc[VERASE2] = CERASE2;
554 #endif
555 tio->c_cc[VKILL] = CKILL;
556 tio->c_cc[VEOF] = CEOF;
557 tio->c_cc[VSTART] = CSTART;
558 tio->c_cc[VSTOP] = CSTOP;
559 tio->c_cc[VSUSP] = CSUSP;
560 # ifdef VDSUSP
561 tio->c_cc[VDSUSP] = CDSUSP;
562 # endif
563 # ifdef VREPRINT
564 tio->c_cc[VREPRINT] = CRPRNT;
565 # endif
566 # ifdef VDISCRD
567 tio->c_cc[VDISCRD] = CFLUSH;
568 # endif
569 # ifdef VWERSE
570 tio->c_cc[VWERSE] = CWERASE;
571 # endif
572 # ifdef VLNEXT
573 tio->c_cc[VLNEXT] = CLNEXT;
574 # endif
575 # ifdef VSTATUS
576 tio->c_cc[VSTATUS] = CSTATUS;
577 # endif
578
579 # if VMIN != VEOF
580 tio->c_cc[VMIN] = 1;
581 # endif
582 # if VTIME != VEOL
583 tio->c_cc[VTIME] = 0;
584 # endif
585
586 /* input modes */
587 tio->c_iflag = (BRKINT | IGNPAR | ICRNL
588 # ifdef IMAXBEL
589 | IMAXBEL
590 # endif
591 | IXON);
592
593 /* output modes */
594 tio->c_oflag = (OPOST | ONLCR);
595
596 /* control modes */
597 tio->c_cflag = (CS8 | CREAD);
598
599 /* local modes */
600 tio->c_lflag = (ISIG | ICANON | IEXTEN | ECHO
601 # if defined (ECHOCTL) && defined (ECHOKE)
602 | ECHOCTL | ECHOKE
603 # endif
604 | ECHOE | ECHOK);
605 }
606
607 char **rxvt_environ; // startup environment
608
609 void
rxvt_init()610 rxvt_init ()
611 {
612 assert (("fontMask must not overlap other RS masks",
613 0 == (RS_fontMask & (RS_Sel | RS_baseattrMask | RS_customMask | RS_bgMask | RS_fgMask))));
614
615 rxvt_get_ttymode (&rxvt_term::def_tio);
616
617 // get rid of stdin/stdout as we don't need them, to free resources
618 dup2 (STDERR_FILENO, STDIN_FILENO);
619 dup2 (STDERR_FILENO, STDOUT_FILENO);
620
621 if (!ev_default_loop ())
622 rxvt_fatal ("cannot initialise libev (bad value for LIBEV_METHODS?)\n");
623
624 rxvt_environ = environ;
625
626 signal (SIGHUP, SIG_IGN);
627 signal (SIGPIPE, SIG_IGN);
628
629 sig_handlers.sw_term.start (SIGTERM); ev_unref ();
630 sig_handlers.sw_int.start (SIGINT); ev_unref ();
631
632 old_xerror_handler = XSetErrorHandler ((XErrorHandler) rxvt_xerror_handler);
633 // TODO: handle this with exceptions and tolerate the memory loss
634 XSetIOErrorHandler (rxvt_xioerror_handler);
635
636 XrmInitialize ();
637
638 #if HAVE_PIXBUF
639 #if !GLIB_CHECK_VERSION(2,36,0)
640 g_type_init ();
641 #endif
642 #endif
643 }
644
645 /*----------------------------------------------------------------------*/
646 /*
647 * window size/position calculations for XSizeHint and other storage.
648 * if width/height are non-zero then override calculated width/height
649 */
650 void
window_calc(unsigned int newwidth,unsigned int newheight)651 rxvt_term::window_calc (unsigned int newwidth, unsigned int newheight)
652 {
653 short recalc_x, recalc_y;
654 int x, y, flags;
655 unsigned int w, h;
656 unsigned int max_width, max_height;
657
658 szHint.flags = PMinSize | PResizeInc | PBaseSize | PWinGravity;
659 szHint.win_gravity = NorthWestGravity;
660 /* szHint.min_aspect.x = szHint.min_aspect.y = 1; */
661
662 recalc_x = recalc_y = 0;
663 flags = 0;
664
665 if (!parsed_geometry)
666 {
667 parsed_geometry = 1;
668
669 if (rs[Rs_geometry])
670 flags = XParseGeometry (rs[Rs_geometry], &x, &y, &w, &h);
671
672 if (flags & WidthValue)
673 {
674 if (!w)
675 rxvt_fatal ("illegal window geometry (width and height must be non-zero), aborting.\n");
676
677 ncol = clamp (w, 1, std::numeric_limits<int16_t>::max ());
678 szHint.flags |= USSize;
679 }
680
681 if (flags & HeightValue)
682 {
683 if (!h)
684 rxvt_fatal ("illegal window geometry (width and height must be non-zero), aborting.\n");
685
686 nrow = clamp (h, 1, std::numeric_limits<int16_t>::max ());
687 szHint.flags |= USSize;
688 }
689
690 if (flags & XValue)
691 {
692 szHint.x = x;
693 szHint.flags |= USPosition;
694
695 if (flags & XNegative)
696 {
697 recalc_x = 1;
698 szHint.win_gravity = NorthEastGravity;
699 }
700 }
701
702 if (flags & YValue)
703 {
704 szHint.y = y;
705 szHint.flags |= USPosition;
706
707 if (flags & YNegative)
708 {
709 recalc_y = 1;
710
711 if (szHint.win_gravity == NorthEastGravity)
712 szHint.win_gravity = SouthEastGravity;
713 else
714 szHint.win_gravity = SouthWestGravity;
715 }
716 }
717 }
718
719 /* TODO: BOUNDS */
720 width = ncol * fwidth;
721 height = nrow * fheight;
722 max_width = MAX_COLS * fwidth;
723 max_height = MAX_ROWS * fheight;
724
725 szHint.base_width = szHint.base_height = 2 * int_bwidth;
726
727 window_vt_x = window_vt_y = int_bwidth;
728
729 if (scrollBar.state)
730 {
731 int sb_w = scrollBar.total_width ();
732 szHint.base_width += sb_w;
733
734 if (!option (Opt_scrollBar_right))
735 window_vt_x += sb_w;
736 }
737
738 szHint.width_inc = fwidth;
739 szHint.height_inc = fheight;
740 szHint.min_width = szHint.base_width + szHint.width_inc;
741 szHint.min_height = szHint.base_height + szHint.height_inc;
742
743 if (newwidth && newwidth - szHint.base_width < max_width)
744 {
745 szHint.width = newwidth;
746 width = newwidth - szHint.base_width;
747 }
748 else
749 {
750 min_it (width, max_width);
751 szHint.width = szHint.base_width + width;
752 }
753
754 if (newheight && newheight - szHint.base_height < max_height)
755 {
756 szHint.height = newheight;
757 height = newheight - szHint.base_height;
758 }
759 else
760 {
761 min_it (height, max_height);
762 szHint.height = szHint.base_height + height;
763 }
764
765 if (recalc_x)
766 szHint.x += DisplayWidth (dpy, display->screen) - szHint.width - 2 * ext_bwidth;
767
768 if (recalc_y)
769 szHint.y += DisplayHeight (dpy, display->screen) - szHint.height - 2 * ext_bwidth;
770
771 ncol = width / fwidth;
772 nrow = height / fheight;
773
774 // When the size of the vt window is not a multiple of the cell
775 // size, i.e., when the wm does not honour our size hints, there are
776 // extra areas not covered by the terminal screen. Such gaps, when a
777 // bg pixmap is set, would have to be cleared manually to properly
778 // refresh the background. We take the simpler route and shrink the
779 // vt window so as to avoid creating gaps.
780 vt_width = ncol * fwidth;
781 vt_height = nrow * fheight;
782 }
783
784 /*----------------------------------------------------------------------*/
785 /*
786 * Tell the teletype handler what size the window is.
787 * Called after a window size change.
788 */
789 void
tt_winch()790 rxvt_term::tt_winch ()
791 {
792 if (pty->pty < 0)
793 return;
794
795 struct winsize ws;
796
797 ws.ws_col = ncol;
798 ws.ws_row = nrow;
799 ws.ws_xpixel = vt_width;
800 ws.ws_ypixel = vt_height;
801 ioctl (pty->pty, TIOCSWINSZ, &ws);
802
803 #if 0
804 // TIOCSWINSZ is supposed to do this automatically and correctly
805 if (cmd_pid) /* force through to the command */
806 kill (-cmd_pid, SIGWINCH);
807 #endif
808 }
809
810 /*----------------------------------------------------------------------*/
811 /* load and set the various fonts */
812 bool
set_fonts()813 rxvt_term::set_fonts ()
814 {
815 rxvt_fontset *fs = new rxvt_fontset (this);
816 rxvt_fontprop prop;
817
818 if (!fs
819 || !fs->populate (rs[Rs_font] ? rs[Rs_font] : "fixed")
820 || !fs->realize_font (1))
821 {
822 delete fs;
823 return false;
824 }
825
826 #if ENABLE_STYLES
827 for (int i = RS_styleCount; --i; )
828 if (fontset[i] != fontset[0])
829 delete fontset[i];
830 #endif
831
832 delete fontset[0];
833 fontset[0] = fs;
834
835 prop = (*fs)[rxvt_fontset::firstFont]->properties ();
836 prop.width = max (prop.width + letterSpace, 1);
837
838 fs->set_prop (prop, false);
839
840 fwidth = prop.width;
841 fheight = prop.height + lineSpace;
842 fbase = prop.ascent;
843
844 for (int style = 1; style < 4; style++)
845 {
846 #if ENABLE_STYLES
847 const char *res = rs[Rs_font + style];
848
849 if (res && !*res)
850 fontset[style] = fontset[0];
851 else
852 {
853 fontset[style] = fs = new rxvt_fontset (this);
854 rxvt_fontprop prop2 = prop;
855
856 if (res)
857 {
858 fs->populate (res);
859 fs->set_prop (prop2, false);
860 }
861 else
862 {
863 fs->populate (fontset[0]->fontdesc);
864
865 if (SET_STYLE (0, style) & RS_Bold) prop2.weight = rxvt_fontprop::bold;
866 if (SET_STYLE (0, style) & RS_Italic) prop2.slant = rxvt_fontprop::italic;
867
868 fs->set_prop (prop2, true);
869 }
870
871 }
872 #else
873 fontset[style] = fontset[0];
874 #endif
875 }
876
877 if (parent)
878 {
879 resize_all_windows (0, 0, 0);
880 scr_remap_chars ();
881 scr_touch (true);
882 }
883
884 return true;
885 }
886
887 void
set_string_property(Atom prop,const char * str,int len)888 rxvt_term::set_string_property (Atom prop, const char *str, int len)
889 {
890 XChangeProperty (dpy, parent,
891 prop, XA_STRING, 8, PropModeReplace,
892 (const unsigned char *)str, len >= 0 ? len : strlen (str));
893 }
894
895 void
set_mbstring_property(Atom prop,const char * str,int len)896 rxvt_term::set_mbstring_property (Atom prop, const char *str, int len)
897 {
898 XTextProperty ct;
899
900 if (XmbTextListToTextProperty (dpy, (char **)&str, 1, XStdICCTextStyle, &ct) >= 0)
901 {
902 XSetTextProperty (dpy, parent, &ct, prop);
903 XFree (ct.value);
904 }
905 }
906
907 void
set_utf8_property(Atom prop,const char * str,int len)908 rxvt_term::set_utf8_property (Atom prop, const char *str, int len)
909 {
910 wchar_t *ws = rxvt_mbstowcs (str, len);
911 char *s = rxvt_wcstoutf8 (ws);
912
913 XChangeProperty (dpy, parent,
914 prop, xa[XA_UTF8_STRING], 8, PropModeReplace,
915 (const unsigned char *)s, strlen (s));
916
917 free (s);
918 free (ws);
919 }
920
921 /*----------------------------------------------------------------------*/
922 /*----------------------------------------------------------------------*/
923 /* xterm sequences - title, iconName, color (exptl) */
924 void
set_title(const char * str)925 rxvt_term::set_title (const char *str)
926 {
927 set_mbstring_property (XA_WM_NAME, str);
928 #if ENABLE_EWMH
929 set_utf8_property (xa[XA_NET_WM_NAME], str);
930 #endif
931 }
932
933 void
set_icon_name(const char * str)934 rxvt_term::set_icon_name (const char *str)
935 {
936 set_mbstring_property (XA_WM_ICON_NAME, str);
937 #if ENABLE_EWMH
938 set_utf8_property (xa[XA_NET_WM_ICON_NAME], str);
939 #endif
940 }
941
942 void
set_window_color(int idx,const char * color)943 rxvt_term::set_window_color (int idx, const char *color)
944 {
945 #ifdef XTERM_COLOR_CHANGE
946 if (color == NULL || *color == '\0')
947 return;
948
949 color = strdup (color);
950 allocated.push_back ((void *)color);
951 rs[Rs_color + idx] = color;
952
953 /* handle color aliases */
954 if (isdigit (*color))
955 {
956 int i = atoi (color);
957
958 if (i >= 8 && i <= 15)
959 {
960 /* bright colors */
961 alias_color (idx, minBrightCOLOR + i - 8);
962 goto done;
963 }
964
965 if (i >= 0 && i <= 7)
966 {
967 /* normal colors */
968 alias_color (idx, minCOLOR + i);
969 goto done;
970 }
971 }
972
973 pix_colors_focused[idx].free (this);
974 set_color (pix_colors_focused[idx], color);
975
976 done:
977 /*TODO: handle Color_BD, scrollbar background, etc. */
978
979 update_fade_color (idx);
980 recolor_cursor ();
981 scr_recolor ();
982 #endif /* XTERM_COLOR_CHANGE */
983 }
984
985 void
recolor_cursor()986 rxvt_term::recolor_cursor ()
987 {
988 XColor fg, bg;
989
990 (ISSET_PIXCOLOR (Color_pointer_fg)
991 ? pix_colors_focused[Color_pointer_fg]
992 : pix_colors_focused[Color_fg]).get (fg);
993
994 (ISSET_PIXCOLOR (Color_pointer_bg)
995 ? pix_colors_focused[Color_pointer_bg]
996 : pix_colors_focused[Color_bg]).get (bg);
997
998 XRecolorCursor (dpy, TermWin_cursor, &fg, &bg);
999 }
1000
1001 /*----------------------------------------------------------------------*/
1002 /*
1003 * find if fg/bg matches any of the normal (low-intensity) colors
1004 */
1005 char *
get_colorfgbg()1006 rxvt_term::get_colorfgbg ()
1007 {
1008 unsigned int i;
1009 const char *xpmb = "";
1010 char fstr[] = "default";
1011 char bstr[] = "default";
1012 char *env_colorfgbg;
1013
1014 for (i = Color_Black; i <= Color_White; i++)
1015 if (pix_colors[Color_fg] == pix_colors[i])
1016 {
1017 sprintf (fstr, "%d", i - Color_Black);
1018 break;
1019 }
1020
1021 for (i = Color_Black; i <= Color_White; i++)
1022 if (pix_colors[Color_bg] == pix_colors[i])
1023 {
1024 sprintf (bstr, "%d", i - Color_Black);
1025 #if HAVE_IMG
1026 xpmb = "default;";
1027 #endif
1028 break;
1029 }
1030
1031 env_colorfgbg = (char *)rxvt_malloc (sizeof ("COLORFGBG=default;default;bg"));
1032 sprintf (env_colorfgbg, "COLORFGBG=%s;%s%s", fstr, xpmb, bstr);
1033 return env_colorfgbg;
1034 }
1035
1036 /*----------------------------------------------------------------------*/
1037
1038 bool
set_color(rxvt_color & color,const char * name)1039 rxvt_term::set_color (rxvt_color &color, const char *name)
1040 {
1041 if (color.set (this, name))
1042 return true;
1043
1044 rxvt_warn ("can't get colour '%s', continuing without.\n", name);
1045 return false;
1046 }
1047
1048 void
alias_color(int dst,int src)1049 rxvt_term::alias_color (int dst, int src)
1050 {
1051 pix_colors[dst].free (this);
1052 pix_colors[dst].set (this, rs[Rs_color + dst] = rs[Rs_color + src]);
1053 }
1054
1055 #ifdef SMART_RESIZE
1056 static unsigned int
get_parent_bw(Display * dpy,Window w)1057 get_parent_bw (Display *dpy, Window w)
1058 {
1059 int idummy;
1060 unsigned int udummy;
1061 Window wdummy, parent;
1062 Window *children;
1063 unsigned int nchildren, border_width;
1064
1065 XQueryTree (dpy, w, &wdummy, &parent, &children, &nchildren);
1066 XFree (children);
1067 XGetGeometry (dpy, parent, &wdummy, &idummy, &idummy,
1068 &udummy, &udummy, &border_width, &udummy);
1069
1070 return border_width;
1071 }
1072 #endif
1073
1074 /* -------------------------------------------------------------------- *
1075 * - WINDOW RESIZING - *
1076 * -------------------------------------------------------------------- */
1077 void
resize_all_windows(unsigned int newwidth,unsigned int newheight,int ignoreparent)1078 rxvt_term::resize_all_windows (unsigned int newwidth, unsigned int newheight, int ignoreparent)
1079 {
1080 int fix_screen;
1081 int old_width = szHint.width;
1082 int old_height = szHint.height;
1083
1084 window_calc (newwidth, newheight);
1085
1086 bool set_hint = !HOOK_INVOKE ((this, HOOK_RESIZE_ALL_WINDOWS, DT_INT, newwidth, DT_INT, newheight, DT_END));
1087
1088 // to avoid races between us and the wm, we clear the incremental size hints around the xresizewindow
1089 if (set_hint)
1090 {
1091 szHint.flags &= ~(PBaseSize | PResizeInc);
1092 XSetWMNormalHints (dpy, parent, &szHint);
1093 szHint.flags |= PBaseSize | PResizeInc;
1094 }
1095
1096 if (!ignoreparent)
1097 {
1098 #ifdef SMART_RESIZE
1099 /*
1100 * resize by Marius Gedminas <marius.gedminas@uosis.mif.vu.lt>
1101 * reposition window on resize depending on placement on screen
1102 */
1103 int x, y, x1, y1;
1104 int dx, dy;
1105 unsigned int unused_w1, unused_h1, unused_b1, unused_d1;
1106 Window unused_cr;
1107
1108 XTranslateCoordinates (dpy, parent, display->root,
1109 0, 0, &x, &y, &unused_cr);
1110 XGetGeometry (dpy, parent, &unused_cr, &x1, &y1,
1111 &unused_w1, &unused_h1, &unused_b1, &unused_d1);
1112 /*
1113 * if display->root isn't the parent window, a WM will probably have offset
1114 * our position for handles and decorations. Counter it
1115 */
1116 if (x1 != x || y1 != y)
1117 {
1118 unsigned int border_width = get_parent_bw (dpy, parent);
1119
1120 x -= x1 + border_width;
1121 y -= y1 + border_width;
1122 }
1123
1124 x1 = (DisplayWidth (dpy, display->screen) - old_width ) / 2;
1125 y1 = (DisplayHeight (dpy, display->screen) - old_height) / 2;
1126 dx = old_width - szHint.width;
1127 dy = old_height - szHint.height;
1128
1129 /* Check position of the center of the window */
1130 if (x < x1) /* left half */
1131 dx = 0;
1132 else if (x == x1) /* exact center */
1133 dx /= 2;
1134 if (y < y1) /* top half */
1135 dy = 0;
1136 else if (y == y1) /* exact center */
1137 dy /= 2;
1138
1139 XMoveResizeWindow (dpy, parent, x + dx, y + dy,
1140 szHint.width, szHint.height);
1141 #else
1142 XResizeWindow (dpy, parent, szHint.width, szHint.height);
1143 #endif
1144 }
1145
1146 if (set_hint)
1147 XSetWMNormalHints (dpy, parent, &szHint);
1148
1149 fix_screen = ncol != prev_ncol || nrow != prev_nrow;
1150
1151 if (fix_screen || newwidth != old_width || newheight != old_height)
1152 {
1153 if (scrollBar.state)
1154 scrollBar.resize ();
1155
1156 XMoveResizeWindow (dpy, vt,
1157 window_vt_x, window_vt_y,
1158 vt_width, vt_height);
1159
1160 HOOK_INVOKE ((this, HOOK_SIZE_CHANGE, DT_INT, newwidth, DT_INT, newheight, DT_END));
1161 }
1162
1163 if (fix_screen || old_height == 0)
1164 scr_reset ();
1165
1166 #if USE_XIM
1167 im_set_position ();
1168 #endif
1169 }
1170
1171 /*
1172 * Set the width/height of the vt window in characters. Units are pixels.
1173 * good for toggling 80/132 columns
1174 */
1175 void
set_widthheight(unsigned int newwidth,unsigned int newheight)1176 rxvt_term::set_widthheight (unsigned int newwidth, unsigned int newheight)
1177 {
1178 XWindowAttributes wattr;
1179
1180 if (newwidth == 0 || newheight == 0)
1181 {
1182 XGetWindowAttributes (dpy, display->root, &wattr);
1183
1184 if (newwidth == 0)
1185 newwidth = wattr.width - szHint.base_width;
1186 if (newheight == 0)
1187 newheight = wattr.height - szHint.base_height;
1188 }
1189
1190 if (newwidth != vt_width || newheight != vt_height)
1191 {
1192 newwidth += szHint.base_width;
1193 newheight += szHint.base_height;
1194 resize_all_windows (newwidth, newheight, 0);
1195 }
1196 }
1197
1198 /* -------------------------------------------------------------------- *
1199 * - X INPUT METHOD ROUTINES - *
1200 * -------------------------------------------------------------------- */
1201 #if USE_XIM
1202
1203 void
im_set_color(unsigned long & fg,unsigned long & bg)1204 rxvt_term::im_set_color (unsigned long &fg, unsigned long &bg)
1205 {
1206 fg = pix_colors [Color_fg];
1207 bg = pix_colors [Color_bg];
1208 }
1209
1210 void
im_set_size(XRectangle & size)1211 rxvt_term::im_set_size (XRectangle &size)
1212 {
1213 // the int_bwidth terms make no sense to me
1214 size.x = int_bwidth;
1215 size.y = int_bwidth;
1216 size.width = Width2Pixel (ncol) + int_bwidth;
1217 size.height = Height2Pixel (nrow) + int_bwidth;
1218 }
1219
1220 void
im_set_preedit_area(XRectangle & preedit_rect,XRectangle & status_rect,const XRectangle & needed_rect)1221 rxvt_term::im_set_preedit_area (XRectangle &preedit_rect,
1222 XRectangle &status_rect,
1223 const XRectangle &needed_rect)
1224 {
1225 preedit_rect.x = needed_rect.width;
1226 preedit_rect.y = 0;
1227 preedit_rect.width = Width2Pixel (ncol) - needed_rect.width + 1;
1228 preedit_rect.height = fheight;
1229
1230 status_rect.x = 0;
1231 status_rect.y = 0;
1232 status_rect.width = needed_rect.width ? needed_rect.width : Width2Pixel (ncol) + 1;
1233 status_rect.height = fheight;
1234 }
1235
1236 /* Checking whether input method is running. */
1237 bool
im_is_running()1238 rxvt_term::im_is_running ()
1239 {
1240 Atom atom;
1241 Window win;
1242 char server[IMBUFSIZ];
1243
1244 /* get current locale modifier */
1245 if (char *p = XSetLocaleModifiers (0))
1246 {
1247 strcpy (server, "@server=");
1248 strncat (server, p + 4, IMBUFSIZ - 9); /* skip "@im=" */
1249
1250 if (p = strchr (server + 1, '@')) /* first one only */
1251 *p = '\0';
1252
1253 atom = XInternAtom (dpy, server, False);
1254 win = XGetSelectionOwner (dpy, atom);
1255
1256 if (win != None)
1257 return true;
1258 }
1259
1260 return false;
1261 }
1262
1263 void
im_send_spot()1264 rxvt_term::im_send_spot ()
1265 {
1266 XPoint nspot;
1267 XVaNestedList preedit_attr;
1268
1269 if (!Input_Context
1270 || !focus
1271 || !(input_style & (XIMPreeditPosition | XIMPreeditCallbacks)))
1272 return;
1273
1274 im_set_position (nspot);
1275
1276 if (nspot.x == spot.x && nspot.y == spot.y)
1277 return;
1278
1279 spot = nspot;
1280
1281 preedit_attr = XVaCreateNestedList (0, XNSpotLocation, &spot, NULL);
1282 XSetICValues (Input_Context, XNPreeditAttributes, preedit_attr, NULL);
1283 XFree (preedit_attr);
1284 }
1285
1286 void
im_destroy()1287 rxvt_term::im_destroy ()
1288 {
1289 if (input_method)
1290 {
1291 if (Input_Context && input_method->xim)
1292 XDestroyIC (Input_Context);
1293
1294 display->put_xim (input_method);
1295 input_method = 0;
1296 }
1297
1298 Input_Context = 0;
1299 }
1300
1301 #ifdef ENABLE_XIM_ONTHESPOT
1302
1303 static void
xim_preedit_start(XIC ic,XPointer client_data,XPointer call_data)1304 xim_preedit_start (XIC ic, XPointer client_data, XPointer call_data)
1305 {
1306 ((rxvt_term *)client_data)->make_current ();
1307 HOOK_INVOKE (((rxvt_term *)client_data, HOOK_XIM_PREEDIT_START, DT_END));
1308 }
1309
1310 static void
xim_preedit_done(XIC ic,XPointer client_data,XPointer call_data)1311 xim_preedit_done (XIC ic, XPointer client_data, XPointer call_data)
1312 {
1313 ((rxvt_term *)client_data)->make_current ();
1314 HOOK_INVOKE (((rxvt_term *)client_data, HOOK_XIM_PREEDIT_DONE, DT_END));
1315 }
1316
1317 static void
xim_preedit_draw(XIC ic,XPointer client_data,XIMPreeditDrawCallbackStruct * call_data)1318 xim_preedit_draw (XIC ic, XPointer client_data, XIMPreeditDrawCallbackStruct *call_data)
1319 {
1320 rxvt_term *term = (rxvt_term *)client_data;
1321 XIMText *text = call_data->text;
1322
1323 term->make_current ();
1324
1325 if (text)
1326 {
1327 wchar_t *str;
1328
1329 if (!text->encoding_is_wchar && text->string.multi_byte)
1330 {
1331 // of course, X makes it ugly again
1332 if (term->rs[Rs_imLocale])
1333 SET_LOCALE (term->rs[Rs_imLocale]);
1334
1335 str = rxvt_temp_buf<wchar_t> (text->length + 1);
1336 mbstowcs (str, text->string.multi_byte, text->length + 1);
1337
1338 if (term->rs[Rs_imLocale])
1339 SET_LOCALE (term->locale);
1340 }
1341 else
1342 str = text->string.wide_char;
1343
1344 HOOK_INVOKE ((term, HOOK_XIM_PREEDIT_DRAW,
1345 DT_INT, call_data->caret,
1346 DT_INT, call_data->chg_first,
1347 DT_INT, call_data->chg_length,
1348 DT_LCS_LEN, (void *)text->feedback, text->feedback ? (int)text->length : 0,
1349 DT_WCS_LEN, str, str ? (int)text->length : 0,
1350 DT_END));
1351 }
1352 else
1353 HOOK_INVOKE ((term, HOOK_XIM_PREEDIT_DRAW,
1354 DT_INT, call_data->caret,
1355 DT_INT, call_data->chg_first,
1356 DT_INT, call_data->chg_length,
1357 DT_END));
1358 }
1359
1360 #if 0
1361 static void
1362 xim_preedit_caret (XIC ic, XPointer client_data, XIMPreeditCaretCallbackStruct *call_data)
1363 {
1364 ((rxvt_term *)client_data)->make_current ();
1365 HOOK_INVOKE (((rxvt_term *)client_data, HOOK_XIM_PREEDIT_CARET,
1366 DT_INT, call_data->position,
1367 DT_INT, call_data->direction,
1368 DT_INT, call_data->style,
1369 DT_END));
1370 }
1371 #endif
1372
1373 #endif
1374
1375 /*
1376 * Try to open a XIM with the current modifiers, then see if we can
1377 * open a suitable preedit type
1378 */
1379 bool
im_get_ic(const char * modifiers)1380 rxvt_term::im_get_ic (const char *modifiers)
1381 {
1382 int i, j, found;
1383 XIM xim;
1384 XPoint spot;
1385 XRectangle rect, status_rect, needed_rect;
1386 unsigned long fg, bg;
1387 const char *p;
1388 char **s;
1389 XIMStyles *xim_styles;
1390
1391 set_environ (env);
1392
1393 if (!((p = XSetLocaleModifiers (modifiers)) && *p))
1394 return false;
1395
1396 input_method = display->get_xim (locale, modifiers);
1397 if (input_method == NULL)
1398 return false;
1399
1400 xim = input_method->xim;
1401 spot.x = spot.y = -1;
1402
1403 xim_styles = NULL;
1404 if (XGetIMValues (xim, XNQueryInputStyle, &xim_styles, NULL)
1405 || !xim_styles || !xim_styles->count_styles)
1406 {
1407 im_destroy ();
1408 return false;
1409 }
1410
1411 const char *pet[] = { rs[Rs_preeditType], "OverTheSpot,OffTheSpot,Root,None" };
1412
1413 for (int pi = 0; pi < 2; pi++)
1414 {
1415 p = pet[pi];
1416
1417 if (!p)
1418 continue;
1419
1420 s = rxvt_strsplit (',', p);
1421
1422 for (i = found = 0; !found && s[i]; i++)
1423 {
1424 if (!strcmp (s[i], "OverTheSpot"))
1425 input_style = XIMPreeditPosition | XIMStatusNothing;
1426 else if (!strcmp (s[i], "OffTheSpot"))
1427 input_style = XIMPreeditArea | XIMStatusArea;
1428 else if (!strcmp (s[i], "Root"))
1429 input_style = XIMPreeditNothing | XIMStatusNothing;
1430 else if (!strcmp (s[i], "None"))
1431 input_style = XIMPreeditNone | XIMStatusNone;
1432 #ifdef ENABLE_XIM_ONTHESPOT
1433 else if (SHOULD_INVOKE (HOOK_XIM_PREEDIT_START) && !strcmp (s[i], "OnTheSpot"))
1434 input_style = XIMPreeditCallbacks | XIMStatusNothing;
1435 #endif
1436 else
1437 input_style = XIMPreeditNothing | XIMStatusNothing;
1438
1439 for (j = 0; j < xim_styles->count_styles; j++)
1440 if (input_style == xim_styles->supported_styles[j])
1441 {
1442 rxvt_free_strsplit (s);
1443
1444 found = 1;
1445 goto foundpet;
1446 }
1447
1448 }
1449
1450 rxvt_free_strsplit (s);
1451 }
1452
1453 foundpet:
1454
1455 XFree (xim_styles);
1456
1457 if (!found)
1458 {
1459 im_destroy ();
1460 return false;
1461 }
1462
1463 XFontSet fs = 0;
1464 XVaNestedList preedit_attr = 0, status_attr = 0;
1465
1466 if (input_style & (XIMPreeditPosition | XIMPreeditArea))
1467 {
1468 // fake us a font-set, please
1469 char **missing_charset_list;
1470 int missing_charset_count;
1471 char *def_string;
1472 char pat[512];
1473
1474 sprintf (pat,
1475 "-*-*-*-R-*-*-%d-*-*-*-*-*-*,"
1476 "-*-*-*-R-*-*-%d-*-*-*-*-*-*,"
1477 "-*-*-*-R-*-*-%d-*-*-*-*-*-*,"
1478 "-*-*-*-R-*-*-%d-*-*-*-*-*-*,"
1479 "-*-*-*-R-*-*-%d-*-*-*-*-*-*,"
1480 "*",
1481 fheight,
1482 fheight + 1, fheight - 1,
1483 fheight - 2, fheight + 2);
1484
1485 fs = XCreateFontSet (dpy, rs[Rs_imFont] ? rs[Rs_imFont] : pat,
1486 &missing_charset_list, &missing_charset_count, &def_string);
1487
1488 if (missing_charset_list)
1489 XFreeStringList (missing_charset_list);
1490
1491 if (!fs)
1492 {
1493 input_style &= ~(XIMPreeditPosition | XIMPreeditArea);
1494 rxvt_warn ("unable to create fontset for input method, try \"-pt Root\". Continuing.\n");
1495 }
1496 }
1497
1498 if (input_style & XIMPreeditPosition)
1499 {
1500 im_set_size (rect);
1501 im_set_position (spot);
1502 im_set_color (fg, bg);
1503
1504 preedit_attr = XVaCreateNestedList (0,
1505 XNForeground, fg,
1506 XNBackground, bg,
1507 XNArea, &rect,
1508 XNSpotLocation, &spot,
1509 XNFontSet, fs,
1510 NULL);
1511 }
1512 else if (input_style & XIMPreeditArea)
1513 {
1514 im_set_color (fg, bg);
1515
1516 /*
1517 * The necessary width of preedit area is unknown
1518 * until create input context.
1519 */
1520 needed_rect.width = 0;
1521 im_set_preedit_area (rect, status_rect, needed_rect);
1522
1523 preedit_attr = XVaCreateNestedList (0,
1524 XNForeground, fg,
1525 XNBackground, bg,
1526 XNArea, &rect,
1527 XNFontSet, fs,
1528 NULL);
1529 status_attr = XVaCreateNestedList (0,
1530 XNForeground, fg,
1531 XNBackground, bg,
1532 XNArea, &status_rect,
1533 XNFontSet, fs,
1534 NULL);
1535 }
1536 #if ENABLE_XIM_ONTHESPOT
1537 else if (input_style & XIMPreeditCallbacks)
1538 {
1539 XIMCallback xcb[4];
1540
1541 im_set_position (spot);
1542
1543 xcb[0].client_data = (XPointer)this; xcb[0].callback = (XIMProc)xim_preedit_start;
1544 xcb[1].client_data = (XPointer)this; xcb[1].callback = (XIMProc)xim_preedit_done;
1545 xcb[2].client_data = (XPointer)this; xcb[2].callback = (XIMProc)xim_preedit_draw;
1546 # if 0
1547 xcb[3].client_data = (XPointer)this; xcb[3].callback = (XIMProc)xim_preedit_caret;
1548 # endif
1549
1550 preedit_attr = XVaCreateNestedList (0,
1551 XNSpotLocation, &spot,
1552 XNPreeditStartCallback, &xcb[0],
1553 XNPreeditDoneCallback , &xcb[1],
1554 XNPreeditDrawCallback , &xcb[2],
1555 # if 0
1556 XNPreeditCaretCallback, &xcb[3],
1557 # endif
1558 NULL);
1559 }
1560 #endif
1561
1562 Input_Context = XCreateIC (xim,
1563 XNInputStyle, input_style,
1564 XNClientWindow, vt,
1565 XNFocusWindow, parent,
1566 preedit_attr ? XNPreeditAttributes : NULL,
1567 preedit_attr,
1568 status_attr ? XNStatusAttributes : NULL,
1569 status_attr, NULL);
1570
1571 if (preedit_attr) XFree (preedit_attr);
1572 if (status_attr) XFree (status_attr);
1573 if (fs) XFreeFontSet (dpy, fs);
1574
1575 if (Input_Context == NULL)
1576 {
1577 rxvt_warn ("failed to create input context, continuing without XIM.\n");
1578 im_destroy ();
1579 return false;
1580 }
1581
1582 #if 0
1583 // unfortunately, only the focus window is used by XIM, hard to fix
1584 if (!XGetICValues (Input_Context, XNFilterEvents, &vt_emask_xim, NULL))
1585 vt_select_input ();
1586 #endif
1587
1588 im_set_position ();
1589
1590 return true;
1591 }
1592
1593 void
im_cb()1594 rxvt_term::im_cb ()
1595 {
1596 int i;
1597 const char *p;
1598 char **s;
1599 char buf[IMBUFSIZ];
1600
1601 make_current ();
1602
1603 im_destroy ();
1604
1605 if (Input_Context)
1606 return;
1607
1608 if (rs[Rs_imLocale])
1609 SET_LOCALE (rs[Rs_imLocale]);
1610
1611 p = rs[Rs_inputMethod];
1612 if (p && *p)
1613 {
1614 bool found = false;
1615
1616 s = rxvt_strsplit (',', p);
1617
1618 for (i = 0; s[i]; i++)
1619 {
1620 if (*s[i])
1621 {
1622 strcpy (buf, "@im=");
1623 strncat (buf, s[i], IMBUFSIZ - 5);
1624 if (im_get_ic (buf))
1625 {
1626 found = true;
1627 break;
1628 }
1629 }
1630 }
1631
1632 rxvt_free_strsplit (s);
1633
1634 if (found)
1635 goto done;
1636 }
1637
1638 /* try with XMODIFIERS env. var. */
1639 if (im_get_ic (""))
1640 goto done;
1641
1642 /* try with no modifiers base IF the user didn't specify an IM */
1643 if (im_get_ic ("@im=none"))
1644 goto done;
1645
1646 done:
1647 if (rs[Rs_imLocale])
1648 SET_LOCALE (locale);
1649 }
1650
1651 void
im_set_position()1652 rxvt_term::im_set_position ()
1653 {
1654 XRectangle preedit_rect, status_rect, *needed_rect;
1655 XVaNestedList preedit_attr, status_attr;
1656
1657 if (!Input_Context
1658 || !focus
1659 || !(input_style & (XIMPreeditArea | XIMPreeditPosition))
1660 || !im_is_running ())
1661 return;
1662
1663 if (input_style & XIMPreeditPosition)
1664 {
1665 im_set_size (preedit_rect);
1666 preedit_attr = XVaCreateNestedList (0, XNArea, &preedit_rect, NULL);
1667
1668 XSetICValues (Input_Context,
1669 XNPreeditAttributes, preedit_attr, NULL);
1670 }
1671 else
1672 {
1673 /* Getting the necessary width of preedit area */
1674 status_attr = XVaCreateNestedList (0, XNAreaNeeded, &needed_rect, NULL);
1675 XGetICValues (Input_Context, XNStatusAttributes, status_attr, NULL);
1676 XFree (status_attr);
1677
1678 im_set_preedit_area (preedit_rect, status_rect, *needed_rect);
1679 XFree (needed_rect);
1680
1681 preedit_attr = XVaCreateNestedList (0, XNArea, &preedit_rect, NULL);
1682 status_attr = XVaCreateNestedList (0, XNArea, &status_rect, NULL);
1683
1684 XSetICValues (Input_Context,
1685 XNPreeditAttributes, preedit_attr,
1686 XNStatusAttributes, status_attr,
1687 NULL);
1688
1689 XFree (status_attr);
1690 }
1691
1692 XFree (preedit_attr);
1693 }
1694 #endif /* USE_XIM */
1695
1696 void
get_window_origin(int & x,int & y)1697 rxvt_term::get_window_origin (int &x, int &y)
1698 {
1699 Window cr;
1700 XTranslateCoordinates (dpy, parent, display->root, 0, 0, &x, &y, &cr);
1701 }
1702
1703 /*----------------------- end-of-file (C source) -----------------------*/
1704