Mercurial > hg > xemacs-beta
annotate src/device-x.c @ 4404:80e07b006f9c
Prevent access to uninitialized variables in x_init_device.
2008-01-18 Jerry James <james@xemacs.org>
* device-x.c (x_init_device): Don't write to path or read from
format when neither has been initialized.
| author | Jerry James <james@xemacs.org> |
|---|---|
| date | Fri, 18 Jan 2008 16:12:31 -0700 |
| parents | 229bd619740a |
| children | e34711681f30 |
| rev | line source |
|---|---|
| 428 | 1 /* Device functions for X windows. |
| 2 Copyright (C) 1994, 1995 Board of Trustees, University of Illinois. | |
| 3 Copyright (C) 1994, 1995 Free Software Foundation, Inc. | |
| 2367 | 4 Copyright (C) 2001, 2002, 2004 Ben Wing. |
| 428 | 5 |
| 6 This file is part of XEmacs. | |
| 7 | |
| 8 XEmacs is free software; you can redistribute it and/or modify it | |
| 9 under the terms of the GNU General Public License as published by the | |
| 10 Free Software Foundation; either version 2, or (at your option) any | |
| 11 later version. | |
| 12 | |
| 13 XEmacs is distributed in the hope that it will be useful, but WITHOUT | |
| 14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 16 for more details. | |
| 17 | |
| 18 You should have received a copy of the GNU General Public License | |
| 19 along with XEmacs; see the file COPYING. If not, write to | |
| 20 the Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
| 21 Boston, MA 02111-1307, USA. */ | |
| 22 | |
| 23 /* Synched up with: Not in FSF. */ | |
| 24 | |
| 442 | 25 /* 7-8-00 !!#### This file needs definite Mule review. */ |
| 26 | |
| 428 | 27 /* Original authors: Jamie Zawinski and the FSF */ |
| 28 /* Rewritten by Ben Wing and Chuck Thompson. */ | |
| 29 | |
| 30 #include <config.h> | |
| 31 #include "lisp.h" | |
| 32 | |
| 33 #include "buffer.h" | |
| 872 | 34 #include "device-impl.h" |
| 428 | 35 #include "elhash.h" |
| 36 #include "events.h" | |
| 37 #include "faces.h" | |
| 3707 | 38 #include "file-coding.h" |
| 872 | 39 #include "frame-impl.h" |
| 2684 | 40 #include "process.h" /* for egetenv */ |
| 428 | 41 #include "redisplay.h" |
| 42 #include "sysdep.h" | |
| 43 #include "window.h" | |
| 44 | |
| 872 | 45 #include "console-x-impl.h" |
| 800 | 46 #include "glyphs-x.h" |
| 47 #include "objects-x.h" | |
| 48 | |
| 428 | 49 #include "sysfile.h" |
| 50 #include "systime.h" | |
| 51 | |
| 800 | 52 #include "xintrinsicp.h" /* CoreP.h needs this */ |
| 53 #include <X11/CoreP.h> /* Numerous places access the fields of | |
| 54 a core widget directly. We could | |
| 55 use XtGetValues(), but ... */ | |
| 56 #include "xgccache.h" | |
| 57 #include <X11/Shell.h> | |
| 58 #include "xmu.h" | |
| 59 | |
| 442 | 60 #if defined(HAVE_SHLIB) && defined(LWLIB_USES_ATHENA) && !defined(HAVE_ATHENA_3D) |
| 440 | 61 #include "sysdll.h" |
| 442 | 62 #endif /* HAVE_SHLIB and LWLIB_USES_ATHENA and not HAVE_ATHENA_3D */ |
| 440 | 63 |
| 428 | 64 #ifdef HAVE_OFFIX_DND |
| 65 #include "offix.h" | |
| 66 #endif | |
| 67 | |
| 771 | 68 #ifdef MULE |
| 428 | 69 Lisp_Object Vx_app_defaults_directory; |
| 771 | 70 Lisp_Object Qget_coding_system_from_locale; |
| 428 | 71 #endif |
| 72 | |
| 73 /* Qdisplay in general.c */ | |
| 74 Lisp_Object Qx_error; | |
| 75 Lisp_Object Qinit_pre_x_win, Qinit_post_x_win; | |
| 76 | |
| 77 /* The application class of Emacs. */ | |
| 78 Lisp_Object Vx_emacs_application_class; | |
| 79 | |
| 80 Lisp_Object Vx_initial_argv_list; /* #### ugh! */ | |
| 81 | |
| 82 static XrmOptionDescRec emacs_options[] = | |
| 83 { | |
| 84 {"-geometry", ".geometry", XrmoptionSepArg, NULL}, | |
| 85 {"-iconic", ".iconic", XrmoptionNoArg, "yes"}, | |
| 86 | |
| 87 {"-internal-border-width", "*EmacsFrame.internalBorderWidth", XrmoptionSepArg, NULL}, | |
| 88 {"-ib", "*EmacsFrame.internalBorderWidth", XrmoptionSepArg, NULL}, | |
| 89 {"-scrollbar-width", "*EmacsFrame.scrollBarWidth", XrmoptionSepArg, NULL}, | |
| 90 {"-scrollbar-height", "*EmacsFrame.scrollBarHeight", XrmoptionSepArg, NULL}, | |
| 91 | |
| 92 {"-privatecolormap", ".privateColormap", XrmoptionNoArg, "yes"}, | |
| 93 {"-visual", ".EmacsVisual", XrmoptionSepArg, NULL}, | |
| 94 | |
| 95 /* #### Beware! If the type of the shell changes, update this. */ | |
| 96 {"-T", "*TopLevelEmacsShell.title", XrmoptionSepArg, NULL}, | |
| 97 {"-wn", "*TopLevelEmacsShell.title", XrmoptionSepArg, NULL}, | |
| 98 {"-title", "*TopLevelEmacsShell.title", XrmoptionSepArg, NULL}, | |
| 99 | |
| 100 {"-iconname", "*TopLevelEmacsShell.iconName", XrmoptionSepArg, NULL}, | |
| 101 {"-in", "*TopLevelEmacsShell.iconName", XrmoptionSepArg, NULL}, | |
| 102 {"-mc", "*pointerColor", XrmoptionSepArg, NULL}, | |
| 103 {"-cr", "*cursorColor", XrmoptionSepArg, NULL}, | |
| 104 {"-fontset", "*FontSet", XrmoptionSepArg, NULL}, | |
| 105 }; | |
| 106 | |
| 1204 | 107 static const struct memory_description x_device_data_description_1 [] = { |
| 108 { XD_LISP_OBJECT, offsetof (struct x_device, x_keysym_map_hash_table) }, | |
| 109 { XD_LISP_OBJECT, offsetof (struct x_device, WM_COMMAND_frame) }, | |
| 110 { XD_END } | |
| 111 }; | |
| 112 | |
| 3092 | 113 #ifdef NEW_GC |
| 114 DEFINE_LRECORD_IMPLEMENTATION ("x-device", x_device, | |
| 115 1, /*dumpable-flag*/ | |
| 116 0, 0, 0, 0, 0, | |
| 117 x_device_data_description_1, | |
| 118 Lisp_X_Device); | |
| 119 #else /* not NEW_GC */ | |
| 1204 | 120 extern const struct sized_memory_description x_device_data_description; |
| 121 | |
| 122 const struct sized_memory_description x_device_data_description = { | |
| 123 sizeof (struct x_device), x_device_data_description_1 | |
| 124 }; | |
| 3092 | 125 #endif /* not NEW_GC */ |
| 1204 | 126 |
| 428 | 127 /* Functions to synchronize mirroring resources and specifiers */ |
| 128 int in_resource_setting; | |
| 129 | |
| 130 /************************************************************************/ | |
| 131 /* helper functions */ | |
| 132 /************************************************************************/ | |
| 133 | |
| 134 /* JH 97/11/25 removed the static declaration because I need it during setup in event-Xt... */ | |
| 135 struct device * get_device_from_display_1 (Display *dpy); | |
| 136 struct device * | |
| 137 get_device_from_display_1 (Display *dpy) | |
| 138 { | |
| 139 Lisp_Object devcons, concons; | |
| 140 | |
| 141 DEVICE_LOOP_NO_BREAK (devcons, concons) | |
| 142 { | |
| 143 struct device *d = XDEVICE (XCAR (devcons)); | |
| 144 if (DEVICE_X_P (d) && DEVICE_X_DISPLAY (d) == dpy) | |
| 145 return d; | |
| 146 } | |
| 147 | |
| 148 return 0; | |
| 149 } | |
| 150 | |
| 151 struct device * | |
| 152 get_device_from_display (Display *dpy) | |
| 153 { | |
| 154 struct device *d = get_device_from_display_1 (dpy); | |
| 155 | |
| 156 #if !defined(INFODOCK) | |
| 157 # define FALLBACK_RESOURCE_NAME "xemacs" | |
| 158 # else | |
| 159 # define FALLBACK_RESOURCE_NAME "infodock" | |
| 160 #endif | |
| 161 | |
| 853 | 162 if (!d) |
| 163 { | |
| 164 /* This isn't one of our displays. Let's crash? */ | |
| 165 stderr_out | |
| 166 ("\n%s: Fatal X Condition. Asked about display we don't own: \"%s\"\n", | |
| 167 (STRINGP (Vinvocation_name) ? | |
| 168 (char *) XSTRING_DATA (Vinvocation_name) : FALLBACK_RESOURCE_NAME), | |
| 169 DisplayString (dpy) ? DisplayString (dpy) : "???"); | |
| 2500 | 170 ABORT(); |
| 853 | 171 } |
| 428 | 172 |
| 173 #undef FALLBACK_RESOURCE_NAME | |
| 174 | |
| 175 return d; | |
| 176 } | |
| 177 | |
| 178 struct device * | |
| 179 decode_x_device (Lisp_Object device) | |
| 180 { | |
| 793 | 181 device = wrap_device (decode_device (device)); |
| 428 | 182 CHECK_X_DEVICE (device); |
| 183 return XDEVICE (device); | |
| 184 } | |
| 185 | |
| 186 static Display * | |
| 187 get_x_display (Lisp_Object device) | |
| 188 { | |
| 189 return DEVICE_X_DISPLAY (decode_x_device (device)); | |
| 190 } | |
| 191 | |
| 771 | 192 static Lisp_Object |
| 2333 | 193 coding_system_of_xrm_database (XrmDatabase USED_IF_MULE (db)) |
| 771 | 194 { |
| 195 #ifdef MULE | |
| 3707 | 196 const Extbyte *locale; |
| 197 Lisp_Object localestr; | |
| 198 static XrmDatabase last_xrm_db; | |
| 199 | |
| 200 /* This will always be zero, nil or an actual coding system object, so no | |
| 201 need to worry about GCPROing it--it'll be protected from garbage | |
| 202 collection by means of Vcoding_system_hash_table in file-coding.c. */ | |
| 203 static Lisp_Object last_coding_system; | |
| 204 | |
| 205 if (db == last_xrm_db) | |
| 206 { | |
| 207 return last_coding_system; | |
| 208 } | |
| 209 | |
| 210 last_xrm_db = db; | |
| 211 | |
| 212 locale = XrmLocaleOfDatabase (db); | |
| 213 localestr = build_ext_string (locale, Qbinary); | |
| 214 last_coding_system = call1 (Qget_coding_system_from_locale, localestr); | |
| 215 | |
| 216 return last_coding_system; | |
| 771 | 217 #else |
| 218 return Qbinary; | |
| 219 #endif | |
| 220 } | |
| 221 | |
| 428 | 222 |
| 223 /************************************************************************/ | |
| 224 /* initializing an X connection */ | |
| 225 /************************************************************************/ | |
| 226 | |
| 756 | 227 static struct device *device_being_initialized = NULL; |
| 228 | |
| 428 | 229 static void |
| 230 allocate_x_device_struct (struct device *d) | |
| 231 { | |
| 3092 | 232 #ifdef NEW_GC |
| 233 d->device_data = alloc_lrecord_type (struct x_device, &lrecord_x_device); | |
| 234 #else /* not NEW_GC */ | |
| 428 | 235 d->device_data = xnew_and_zero (struct x_device); |
| 3092 | 236 #endif /* not NEW_GC */ |
| 428 | 237 } |
| 238 | |
| 239 static void | |
| 240 Xatoms_of_device_x (struct device *d) | |
| 241 { | |
| 242 Display *D = DEVICE_X_DISPLAY (d); | |
| 243 | |
| 244 DEVICE_XATOM_WM_PROTOCOLS (d) = XInternAtom (D, "WM_PROTOCOLS", False); | |
| 245 DEVICE_XATOM_WM_DELETE_WINDOW(d) = XInternAtom (D, "WM_DELETE_WINDOW",False); | |
| 246 DEVICE_XATOM_WM_SAVE_YOURSELF(d) = XInternAtom (D, "WM_SAVE_YOURSELF",False); | |
| 247 DEVICE_XATOM_WM_TAKE_FOCUS (d) = XInternAtom (D, "WM_TAKE_FOCUS", False); | |
| 248 DEVICE_XATOM_WM_STATE (d) = XInternAtom (D, "WM_STATE", False); | |
| 249 } | |
| 250 | |
| 251 static void | |
| 252 sanity_check_geometry_resource (Display *dpy) | |
| 253 { | |
| 771 | 254 Extbyte *app_name, *app_class, *s; |
| 255 Extbyte buf1 [255], buf2 [255]; | |
| 256 Extbyte *type; | |
| 428 | 257 XrmValue value; |
| 258 XtGetApplicationNameAndClass (dpy, &app_name, &app_class); | |
| 259 strcpy (buf1, app_name); | |
| 260 strcpy (buf2, app_class); | |
| 261 for (s = buf1; *s; s++) if (*s == '.') *s = '_'; | |
| 262 strcat (buf1, "._no_._such_._resource_.geometry"); | |
| 263 strcat (buf2, "._no_._such_._resource_.Geometry"); | |
| 264 if (XrmGetResource (XtDatabase (dpy), buf1, buf2, &type, &value) == True) | |
| 265 { | |
| 867 | 266 Ibyte *app_name_int, *app_class_int, *value_addr_int; |
| 771 | 267 Lisp_Object codesys = coding_system_of_xrm_database (XtDatabase (dpy)); |
| 268 EXTERNAL_TO_C_STRING (app_name, app_name_int, codesys); | |
| 269 EXTERNAL_TO_C_STRING (app_class, app_class_int, codesys); | |
| 270 EXTERNAL_TO_C_STRING (value.addr, value_addr_int, codesys); | |
| 271 | |
| 428 | 272 warn_when_safe (Qgeometry, Qerror, |
| 273 "\n" | |
| 274 "Apparently \"%s*geometry: %s\" or \"%s*geometry: %s\" was\n" | |
| 275 "specified in the resource database. Specifying \"*geometry\" will make\n" | |
| 276 "XEmacs (and most other X programs) malfunction in obscure ways. (i.e.\n" | |
| 277 "the Xt or Xm libraries will probably crash, which is a very bad thing.)\n" | |
| 278 "You should always use \".geometry\" or \"*EmacsFrame.geometry\" instead.\n", | |
| 771 | 279 app_name_int, value_addr_int, |
| 280 app_class_int, value_addr_int); | |
| 428 | 281 suppress_early_error_handler_backtrace = 1; |
| 563 | 282 syntax_error ("Invalid geometry resource", Qunbound); |
| 428 | 283 } |
| 284 } | |
| 285 | |
| 286 static void | |
| 287 x_init_device_class (struct device *d) | |
| 288 { | |
| 289 if (DEVICE_X_DEPTH(d) > 2) | |
| 290 { | |
| 1204 | 291 switch (DEVICE_X_VISUAL(d)->X_CLASSFIELD) |
| 428 | 292 { |
| 293 case StaticGray: | |
| 294 case GrayScale: | |
| 295 DEVICE_CLASS (d) = Qgrayscale; | |
| 296 break; | |
| 297 default: | |
| 298 DEVICE_CLASS (d) = Qcolor; | |
| 299 } | |
| 300 } | |
| 301 else | |
| 302 DEVICE_CLASS (d) = Qmono; | |
| 303 } | |
| 304 | |
| 305 /* | |
| 306 * Figure out what application name to use for xemacs | |
| 307 * | |
| 308 * Since we have decomposed XtOpenDisplay into XOpenDisplay and | |
| 309 * XtDisplayInitialize, we no longer get this for free. | |
| 310 * | |
| 311 * If there is a `-name' argument in argv, use that. | |
| 312 * Otherwise use the last component of argv[0]. | |
| 313 * | |
| 314 * I have removed the gratuitous use of getenv("RESOURCE_NAME") | |
| 315 * which was in X11R5, but left the matching of any prefix of `-name'. | |
| 316 * Finally, if all else fails, return `xemacs', as it is more | |
| 317 * appropriate (X11R5 returns `main'). | |
| 318 */ | |
| 442 | 319 static Extbyte * |
| 320 compute_x_app_name (int argc, Extbyte **argv) | |
| 428 | 321 { |
| 322 int i; | |
| 442 | 323 Extbyte *ptr; |
| 428 | 324 |
| 325 for (i = 1; i < argc - 1; i++) | |
| 326 if (!strncmp(argv[i], "-name", max (2, strlen (argv[1])))) | |
| 327 return argv[i+1]; | |
| 328 | |
| 329 if (argc > 0 && argv[0] && *argv[0]) | |
| 330 return (ptr = strrchr (argv[0], '/')) ? ++ptr : argv[0]; | |
| 331 | |
| 332 return "xemacs"; | |
| 333 } | |
| 334 | |
| 335 /* | |
| 336 * This function figures out whether the user has any resources of the | |
| 337 * form "XEmacs.foo" or "XEmacs*foo". | |
| 338 * | |
| 339 * Currently we only consult the display's global resources; to look | |
| 340 * for screen specific resources, we would need to also consult: | |
| 341 * xdefs = XScreenResourceString(ScreenOfDisplay(dpy, scrno)); | |
| 342 */ | |
| 343 static int | |
| 344 have_xemacs_resources_in_xrdb (Display *dpy) | |
| 345 { | |
| 346 char *xdefs, *key; | |
| 347 int len; | |
| 348 | |
| 349 #ifdef INFODOCK | |
| 350 key = "InfoDock"; | |
| 351 #else | |
| 352 key = "XEmacs"; | |
| 353 #endif | |
| 354 len = strlen (key); | |
| 355 | |
| 356 if (!dpy) | |
| 357 return 0; | |
| 358 | |
| 359 xdefs = XResourceManagerString (dpy); /* don't free - owned by X */ | |
| 360 while (xdefs && *xdefs) | |
| 361 { | |
| 362 if (strncmp (xdefs, key, len) == 0 && | |
| 363 (xdefs[len] == '*' || xdefs[len] == '.')) | |
| 364 return 1; | |
| 365 | |
| 366 while (*xdefs && *xdefs++ != '\n') /* find start of next entry.. */ | |
| 367 ; | |
| 368 } | |
| 369 | |
| 370 return 0; | |
| 371 } | |
| 372 | |
| 373 /* Only the characters [-_A-Za-z0-9] are allowed in the individual | |
| 374 components of a resource. Convert invalid characters to `-' */ | |
| 375 | |
| 376 static char valid_resource_char_p[256]; | |
| 377 | |
| 378 static void | |
| 771 | 379 validify_resource_component (Extbyte *str, Bytecount len) |
| 428 | 380 { |
| 381 for (; len; len--, str++) | |
| 382 if (!valid_resource_char_p[(unsigned char) (*str)]) | |
| 383 *str = '-'; | |
| 384 } | |
| 385 | |
| 386 static void | |
| 771 | 387 Dynarr_add_validified_lisp_string (Extbyte_dynarr *cda, Lisp_Object str) |
| 428 | 388 { |
| 771 | 389 Bytecount len; |
| 390 Extbyte *data; | |
| 391 | |
| 392 TO_EXTERNAL_FORMAT (LISP_STRING, str, ALLOCA, (data, len), Qbinary); | |
| 393 Dynarr_add_many (cda, data, len); | |
| 394 validify_resource_component (Dynarr_atp (cda, Dynarr_length (cda) - len), | |
| 395 len); | |
| 428 | 396 } |
| 397 | |
| 398 #if 0 | |
| 399 /* compare visual info for qsorting */ | |
| 400 static int | |
| 401 x_comp_visual_info (const void *elem1, const void *elem2) | |
| 402 { | |
| 403 XVisualInfo *left, *right; | |
| 404 | |
| 405 left = (XVisualInfo *)elem1; | |
| 406 right = (XVisualInfo *)elem2; | |
| 407 | |
| 408 if ( left == NULL ) | |
| 409 return -1; | |
| 410 if ( right == NULL ) | |
| 411 return 1; | |
| 412 | |
| 771 | 413 if ( left->depth > right->depth ) |
| 428 | 414 return 1; |
| 771 | 415 else if ( left->depth == right->depth ) |
| 416 { | |
| 417 if ( left->colormap_size > right->colormap_size ) | |
| 418 return 1; | |
| 1204 | 419 if ( left->X_CLASSFIELD > right->X_CLASSFIELD ) |
| 771 | 420 return 1; |
| 1204 | 421 else if ( left->X_CLASSFIELD < right->X_CLASSFIELD ) |
| 771 | 422 return -1; |
| 423 else | |
| 424 return 0; | |
| 425 } | |
| 426 else | |
| 428 | 427 return -1; |
| 428 } | |
| 429 #endif /* if 0 */ | |
| 430 | |
| 431 #define XXX_IMAGE_LIBRARY_IS_SOMEWHAT_BROKEN | |
| 432 static Visual * | |
| 433 x_try_best_visual_class (Screen *screen, int scrnum, int visual_class) | |
| 434 { | |
| 435 Display *dpy = DisplayOfScreen (screen); | |
| 436 XVisualInfo vi_in; | |
| 437 XVisualInfo *vi_out = NULL; | |
| 438 int out_count; | |
| 439 | |
| 1204 | 440 vi_in.X_CLASSFIELD = visual_class; |
| 428 | 441 vi_in.screen = scrnum; |
| 442 vi_out = XGetVisualInfo (dpy, (VisualClassMask | VisualScreenMask), | |
| 443 &vi_in, &out_count); | |
| 444 if ( vi_out ) | |
| 445 { | |
| 446 int i, best; | |
| 447 Visual *visual; | |
| 448 for (i = 0, best = 0; i < out_count; i++) | |
| 449 /* It's better if it's deeper, or if it's the same depth with | |
| 450 more cells (does that ever happen? Well, it could...) | |
| 451 NOTE: don't allow pseudo color to get larger than 8! */ | |
| 452 if (((vi_out [i].depth > vi_out [best].depth) || | |
| 453 ((vi_out [i].depth == vi_out [best].depth) && | |
| 454 (vi_out [i].colormap_size > vi_out [best].colormap_size))) | |
| 455 #ifdef XXX_IMAGE_LIBRARY_IS_SOMEWHAT_BROKEN | |
| 456 /* For now, the image library doesn't like PseudoColor visuals | |
| 457 of depths other than 1 or 8. Depths greater than 8 only occur | |
| 458 on machines which have TrueColor anyway, so probably we'll end | |
| 459 up using that (it is the one that `Best' would pick) but if a | |
| 460 PseudoColor visual is explicitly specified, pick the 8 bit one. | |
| 461 */ | |
| 462 && (visual_class != PseudoColor || | |
| 463 vi_out [i].depth == 1 || | |
| 464 vi_out [i].depth == 8) | |
| 465 #endif | |
| 466 | |
| 467 /* SGI has 30-bit deep visuals. Ignore them. | |
| 468 (We only have 24-bit data anyway.) | |
| 469 */ | |
| 470 && (vi_out [i].depth <= 24) | |
| 471 ) | |
| 472 best = i; | |
| 473 visual = vi_out[best].visual; | |
| 474 XFree ((char *) vi_out); | |
| 475 return visual; | |
| 476 } | |
| 477 else | |
| 478 return 0; | |
| 479 } | |
| 480 | |
| 481 static int | |
| 482 x_get_visual_depth (Display *dpy, Visual *visual) | |
| 483 { | |
| 484 XVisualInfo vi_in; | |
| 485 XVisualInfo *vi_out; | |
| 486 int out_count, d; | |
| 487 | |
| 488 vi_in.visualid = XVisualIDFromVisual (visual); | |
| 489 vi_out = XGetVisualInfo (dpy, /*VisualScreenMask|*/VisualIDMask, | |
| 490 &vi_in, &out_count); | |
| 2500 | 491 if (! vi_out) ABORT (); |
| 428 | 492 d = vi_out [0].depth; |
| 493 XFree ((char *) vi_out); | |
| 494 return d; | |
| 495 } | |
| 496 | |
| 497 static Visual * | |
| 498 x_try_best_visual (Display *dpy, int scrnum) | |
| 499 { | |
| 500 Visual *visual = NULL; | |
| 501 Screen *screen = ScreenOfDisplay (dpy, scrnum); | |
| 502 if ((visual = x_try_best_visual_class (screen, scrnum, TrueColor)) | |
| 503 && x_get_visual_depth (dpy, visual) >= 16 ) | |
| 504 return visual; | |
| 505 if ((visual = x_try_best_visual_class (screen, scrnum, PseudoColor))) | |
| 506 return visual; | |
| 507 if ((visual = x_try_best_visual_class (screen, scrnum, TrueColor))) | |
| 508 return visual; | |
| 509 #ifdef DIRECTCOLOR_WORKS | |
| 510 if ((visual = x_try_best_visual_class (screen, scrnum, DirectColor))) | |
| 511 return visual; | |
| 512 #endif | |
| 513 | |
| 514 visual = DefaultVisualOfScreen (screen); | |
| 515 if ( x_get_visual_depth (dpy, visual) >= 8 ) | |
| 516 return visual; | |
| 517 | |
| 518 if ((visual = x_try_best_visual_class (screen, scrnum, StaticGray))) | |
| 519 return visual; | |
| 520 if ((visual = x_try_best_visual_class (screen, scrnum, GrayScale))) | |
| 521 return visual; | |
| 522 return DefaultVisualOfScreen (screen); | |
| 523 } | |
| 524 | |
| 525 | |
| 526 static void | |
| 2286 | 527 x_init_device (struct device *d, Lisp_Object UNUSED (props)) |
| 428 | 528 { |
| 2367 | 529 /* !!#### */ |
| 428 | 530 Lisp_Object display; |
| 531 Display *dpy; | |
| 532 Widget app_shell; | |
| 533 int argc; | |
| 442 | 534 Extbyte **argv; |
| 535 const char *app_class; | |
| 536 const char *app_name; | |
| 537 const char *disp_name; | |
| 428 | 538 Visual *visual = NULL; |
| 539 int depth = 8; /* shut up the compiler */ | |
| 540 Colormap cmap; | |
| 541 int screen; | |
| 542 /* */ | |
| 543 int best_visual_found = 0; | |
| 544 | |
| 442 | 545 #if defined(HAVE_SHLIB) && defined(LWLIB_USES_ATHENA) && !defined(HAVE_ATHENA_3D) |
| 440 | 546 /* |
| 547 * In order to avoid the lossage with flat Athena widgets dynamically | |
| 548 * linking to one of the ThreeD variants, using the dynamic symbol helpers | |
| 549 * to look for symbols that shouldn't be there and refusing to run if they | |
| 550 * are seems a less toxic idea than having XEmacs crash when we try and | |
| 551 * use a subclass of a widget that has changed size. | |
| 552 * | |
| 553 * It's ugly, I know, and not going to work everywhere. It seems better to | |
| 554 * do our damnedest to try and tell the user what to expect rather than | |
| 555 * simply blow up though. | |
| 556 * | |
| 557 * All the ThreeD variants I have access to define the following function | |
| 558 * symbols in the shared library. The flat Xaw library does not define them: | |
| 559 * | |
| 560 * Xaw3dComputeBottomShadowRGB | |
| 561 * Xaw3dComputeTopShadowRGB | |
| 562 * | |
| 563 * So far only Linux has shown this problem. This seems to be portable to | |
| 564 * all the distributions (certainly all the ones I checked - Debian and | |
| 565 * Redhat) | |
| 566 * | |
| 567 * This will only work, sadly, with dlopen() -- the other dynamic linkers | |
| 568 * are simply not capable of doing what is needed. :/ | |
| 569 */ | |
| 570 | |
| 571 { | |
| 572 /* Get a dll handle to the main process. */ | |
| 1706 | 573 dll_handle xaw_dll_handle = dll_open (Qnil); |
| 440 | 574 |
| 575 /* Did that fail? If so, continue without error. | |
| 576 * We could die here but, well, that's unfriendly and all -- plus I feel | |
| 577 * better about some crashing somewhere rather than preventing a perfectly | |
| 578 * good configuration working just because dll_open failed. | |
| 579 */ | |
| 580 if (xaw_dll_handle != NULL) | |
| 581 { | |
| 582 /* Look for the Xaw3d function */ | |
| 583 dll_func xaw_function_handle = | |
| 584 dll_function (xaw_dll_handle, "Xaw3dComputeTopShadowRGB"); | |
| 585 | |
| 586 /* If we found it, warn the user in big, nasty, unfriendly letters */ | |
| 587 if (xaw_function_handle != NULL) | |
| 588 { | |
| 793 | 589 warn_when_safe (Qdevice, Qcritical, "\n" |
| 440 | 590 "It seems that XEmacs is built dynamically linked to the flat Athena widget\n" |
| 591 "library but it finds a 3D Athena variant with the same name at runtime.\n" | |
| 592 "\n" | |
| 593 "This WILL cause your XEmacs process to dump core at some point.\n" | |
| 594 "You should not continue to use this binary without resolving this issue.\n" | |
| 595 "\n" | |
| 596 "This can be solved with the xaw-wrappers package under Debian\n" | |
| 597 "(register XEmacs as incompatible with all 3d widget sets, see\n" | |
| 598 "update-xaw-wrappers(8) and .../doc/xaw-wrappers/README.packagers). It\n" | |
| 599 "can be verified by checking the runtime path in /etc/ld.so.conf and by\n" | |
| 600 "using `ldd /path/to/xemacs' under other Linux distributions. One\n" | |
| 601 "solution is to use LD_PRELOAD or LD_LIBRARY_PATH to force ld.so to\n" | |
| 602 "load the flat Athena widget library instead of the aliased 3D widget\n" | |
| 603 "library (see ld.so(8) for use of these environment variables).\n\n" | |
| 604 ); | |
| 605 | |
| 606 } | |
| 607 | |
| 608 /* Otherwise release the handle to the library | |
| 609 * No error catch here; I can't think of a way to recover anyhow. | |
| 610 */ | |
| 611 dll_close (xaw_dll_handle); | |
| 612 } | |
| 613 } | |
| 442 | 614 #endif /* HAVE_SHLIB and LWLIB_USES_ATHENA and not HAVE_ATHENA_3D */ |
| 440 | 615 |
| 428 | 616 display = DEVICE_CONNECTION (d); |
| 617 | |
| 618 allocate_x_device_struct (d); | |
| 619 | |
| 620 make_argc_argv (Vx_initial_argv_list, &argc, &argv); | |
| 621 | |
| 442 | 622 LISP_STRING_TO_EXTERNAL (display, disp_name, Qctext); |
| 428 | 623 |
| 624 /* | |
| 625 * Break apart the old XtOpenDisplay call into XOpenDisplay and | |
| 626 * XtDisplayInitialize so we can figure out whether there | |
| 627 * are any XEmacs resources in the resource database before | |
| 628 * we initialize Xt. This is so we can automagically support | |
| 629 * both `Emacs' and `XEmacs' application classes. | |
| 630 */ | |
| 631 slow_down_interrupts (); | |
| 632 /* May not be needed but XtOpenDisplay could not deal with signals here. */ | |
| 756 | 633 device_being_initialized = d; |
| 428 | 634 dpy = DEVICE_X_DISPLAY (d) = XOpenDisplay (disp_name); |
| 756 | 635 device_being_initialized = NULL; |
| 428 | 636 speed_up_interrupts (); |
| 637 | |
| 638 if (dpy == 0) | |
| 639 { | |
| 640 suppress_early_error_handler_backtrace = 1; | |
| 563 | 641 gui_error ("X server not responding\n", display); |
| 428 | 642 } |
| 643 | |
| 644 if (STRINGP (Vx_emacs_application_class) && | |
| 645 XSTRING_LENGTH (Vx_emacs_application_class) > 0) | |
| 442 | 646 LISP_STRING_TO_EXTERNAL (Vx_emacs_application_class, app_class, Qctext); |
| 428 | 647 else |
| 648 { | |
| 2681 | 649 if (egetenv ("USE_EMACS_AS_DEFAULT_APPLICATION_CLASS")) |
| 650 { | |
| 651 app_class = (NILP (Vx_emacs_application_class) && | |
| 652 have_xemacs_resources_in_xrdb (dpy)) | |
| 428 | 653 #ifdef INFODOCK |
| 2681 | 654 ? "InfoDock" |
| 428 | 655 #else |
| 2681 | 656 ? "XEmacs" |
| 428 | 657 #endif |
| 2681 | 658 : "Emacs"; |
| 659 } | |
| 660 else | |
| 661 { | |
| 662 app_class = "XEmacs"; | |
| 663 } | |
| 664 | |
| 428 | 665 /* need to update Vx_emacs_application_class: */ |
| 666 Vx_emacs_application_class = build_string (app_class); | |
| 667 } | |
| 668 | |
| 669 slow_down_interrupts (); | |
| 670 /* May not be needed but XtOpenDisplay could not deal with signals here. | |
| 671 Yuck. */ | |
| 672 XtDisplayInitialize (Xt_app_con, dpy, compute_x_app_name (argc, argv), | |
| 673 app_class, emacs_options, | |
| 442 | 674 XtNumber (emacs_options), &argc, (char **) argv); |
| 428 | 675 speed_up_interrupts (); |
| 676 | |
| 677 screen = DefaultScreen (dpy); | |
| 678 | |
| 679 #ifdef MULE | |
| 680 { | |
| 681 /* Read in locale-specific resources from | |
| 682 data-directory/app-defaults/$LANG/Emacs. | |
| 683 This is in addition to the standard app-defaults files, and | |
| 684 does not override resources defined elsewhere */ | |
| 771 | 685 const Extbyte *data_dir; |
| 686 Extbyte *path; | |
| 3644 | 687 Extbyte *format; |
| 428 | 688 XrmDatabase db = XtDatabase (dpy); /* #### XtScreenDatabase(dpy) ? */ |
| 3644 | 689 Extbyte *locale = xstrdup (XrmLocaleOfDatabase (db)); |
| 690 Extbyte *locale_end; | |
| 428 | 691 |
| 692 if (STRINGP (Vx_app_defaults_directory) && | |
| 693 XSTRING_LENGTH (Vx_app_defaults_directory) > 0) | |
| 694 { | |
| 771 | 695 LISP_STRING_TO_EXTERNAL (Vx_app_defaults_directory, data_dir, |
| 696 Qfile_name); | |
| 2367 | 697 path = alloca_extbytes (strlen (data_dir) + strlen (locale) + 7); |
| 3644 | 698 format = "%s%s/Emacs"; |
| 428 | 699 } |
| 700 else if (STRINGP (Vdata_directory) && XSTRING_LENGTH (Vdata_directory) > 0) | |
| 701 { | |
| 442 | 702 LISP_STRING_TO_EXTERNAL (Vdata_directory, data_dir, Qfile_name); |
| 2367 | 703 path = alloca_extbytes (strlen (data_dir) + 13 + strlen (locale) + 7); |
| 3644 | 704 format = "%sapp-defaults/%s/Emacs"; |
| 428 | 705 } |
|
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706 else |
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707 { |
|
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708 goto no_data_directory; |
|
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709 } |
| 3644 | 710 |
| 711 /* | |
| 712 * The general form for $LANG is <language>_<country>.<encoding>. Try | |
| 713 * that form, <language>_<country> and <language> and load for first | |
| 714 * app-defaults file found. | |
| 715 */ | |
| 716 | |
| 717 sprintf (path, format, data_dir, locale); | |
| 718 if (!access (path, R_OK)) | |
| 719 XrmCombineFileDatabase (path, &db, False); | |
| 720 | |
| 721 if ((locale_end = strchr(locale, '.'))) { | |
| 722 *locale_end = '\0'; | |
| 723 sprintf (path, format, data_dir, locale); | |
| 724 | |
| 725 if (!access (path, R_OK)) | |
| 726 XrmCombineFileDatabase (path, &db, False); | |
| 727 } | |
| 728 | |
| 729 if ((locale_end = strchr(locale, '_'))) { | |
| 730 *locale_end = '\0'; | |
| 731 sprintf (path, format, data_dir, locale); | |
| 732 | |
| 733 if (!access (path, R_OK)) | |
| 734 XrmCombineFileDatabase (path, &db, False); | |
| 735 } | |
| 736 | |
|
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|
737 no_data_directory: |
| 3644 | 738 xfree (locale, Extbyte*); |
| 428 | 739 } |
| 740 #endif /* MULE */ | |
| 741 | |
| 742 if (NILP (DEVICE_NAME (d))) | |
| 743 DEVICE_NAME (d) = display; | |
| 744 | |
| 745 /* We're going to modify the string in-place, so be a nice XEmacs */ | |
| 746 DEVICE_NAME (d) = Fcopy_sequence (DEVICE_NAME (d)); | |
| 747 /* colons and periods can't appear in individual elements of resource | |
| 748 strings */ | |
| 749 | |
| 750 XtGetApplicationNameAndClass (dpy, (char **) &app_name, (char **) &app_class); | |
| 751 /* search for a matching visual if requested by the user, or setup the display default */ | |
| 752 { | |
| 753 int resource_name_length = max (sizeof (".emacsVisual"), | |
| 754 sizeof (".privateColormap")); | |
| 755 char *buf1 = alloca_array (char, strlen (app_name) + resource_name_length); | |
| 756 char *buf2 = alloca_array (char, strlen (app_class) + resource_name_length); | |
| 757 char *type; | |
| 758 XrmValue value; | |
| 759 | |
| 760 sprintf (buf1, "%s.emacsVisual", app_name); | |
| 761 sprintf (buf2, "%s.EmacsVisual", app_class); | |
| 762 if (XrmGetResource (XtDatabase (dpy), buf1, buf2, &type, &value) == True) | |
| 763 { | |
| 764 int cnt = 0; | |
| 765 int vis_class = PseudoColor; | |
| 766 XVisualInfo vinfo; | |
| 767 char *str = (char*) value.addr; | |
| 768 | |
| 769 #define CHECK_VIS_CLASS(visual_class) \ | |
| 770 else if (memcmp (str, #visual_class, sizeof (#visual_class) - 1) == 0) \ | |
| 771 cnt = sizeof (#visual_class) - 1, vis_class = visual_class | |
| 772 | |
| 773 if (1) | |
| 774 ; | |
| 775 CHECK_VIS_CLASS (StaticGray); | |
| 776 CHECK_VIS_CLASS (StaticColor); | |
| 777 CHECK_VIS_CLASS (TrueColor); | |
| 778 CHECK_VIS_CLASS (GrayScale); | |
| 779 CHECK_VIS_CLASS (PseudoColor); | |
| 780 CHECK_VIS_CLASS (DirectColor); | |
| 781 | |
| 782 if (cnt) | |
| 783 { | |
| 784 depth = atoi (str + cnt); | |
| 785 if (depth == 0) | |
| 786 { | |
| 771 | 787 stderr_out ("Invalid Depth specification in %s... " |
| 788 "ignoring...\n", str); | |
| 428 | 789 } |
| 790 else | |
| 791 { | |
| 792 if (XMatchVisualInfo (dpy, screen, depth, vis_class, &vinfo)) | |
| 793 { | |
| 794 visual = vinfo.visual; | |
| 795 } | |
| 796 else | |
| 797 { | |
| 771 | 798 stderr_out ("Can't match the requested visual %s... " |
| 799 "using defaults\n", str); | |
| 428 | 800 } |
| 801 } | |
| 802 } | |
| 803 else | |
| 804 { | |
| 771 | 805 stderr_out ("Invalid Visual specification in %s... " |
| 806 "ignoring.\n", str); | |
| 428 | 807 } |
| 808 } | |
| 809 if (visual == NULL) | |
| 810 { | |
| 811 /* | |
| 812 visual = DefaultVisual(dpy, screen); | |
| 813 depth = DefaultDepth(dpy, screen); | |
| 814 */ | |
| 815 visual = x_try_best_visual (dpy, screen); | |
| 816 depth = x_get_visual_depth (dpy, visual); | |
| 817 best_visual_found = (visual != DefaultVisual (dpy, screen)); | |
| 818 } | |
| 819 | |
| 820 /* If we've got the same visual as the default and it's PseudoColor, | |
| 821 check to see if the user specified that we need a private colormap */ | |
| 822 if (visual == DefaultVisual (dpy, screen)) | |
| 823 { | |
| 824 sprintf (buf1, "%s.privateColormap", app_name); | |
| 825 sprintf (buf2, "%s.PrivateColormap", app_class); | |
| 1204 | 826 if ((visual->X_CLASSFIELD == PseudoColor) && |
| 771 | 827 (XrmGetResource (XtDatabase (dpy), buf1, buf2, &type, &value) |
| 828 == True)) | |
| 829 cmap = XCopyColormapAndFree (dpy, DefaultColormap (dpy, screen)); | |
| 428 | 830 else |
| 771 | 831 cmap = DefaultColormap (dpy, screen); |
| 428 | 832 } |
| 833 else | |
| 834 { | |
| 835 if ( best_visual_found ) | |
| 771 | 836 cmap = XCreateColormap (dpy, RootWindow (dpy, screen), visual, |
| 837 AllocNone); | |
| 428 | 838 else |
| 839 { | |
| 771 | 840 /* We have to create a matching colormap anyway... #### |
| 841 think about using standard colormaps (need the Xmu | |
| 842 libs?) */ | |
| 843 cmap = XCreateColormap (dpy, RootWindow (dpy, screen), visual, | |
| 844 AllocNone); | |
| 845 XInstallColormap (dpy, cmap); | |
| 428 | 846 } |
| 847 } | |
| 848 } | |
| 849 | |
| 850 DEVICE_X_VISUAL (d) = visual; | |
| 851 DEVICE_X_COLORMAP (d) = cmap; | |
| 852 DEVICE_X_DEPTH (d) = depth; | |
| 853 validify_resource_component ((char *) XSTRING_DATA (DEVICE_NAME (d)), | |
| 854 XSTRING_LENGTH (DEVICE_NAME (d))); | |
| 855 | |
| 2007 | 856 /* #### If we're going to implement X session management, this would |
| 857 be the place. Make sure it doesn't conflict with GNOME. */ | |
| 428 | 858 { |
| 859 Arg al[3]; | |
| 860 XtSetArg (al[0], XtNvisual, visual); | |
| 861 XtSetArg (al[1], XtNdepth, depth); | |
| 862 XtSetArg (al[2], XtNcolormap, cmap); | |
| 863 | |
| 864 app_shell = XtAppCreateShell (NULL, app_class, | |
| 865 applicationShellWidgetClass, | |
| 866 dpy, al, countof (al)); | |
| 867 } | |
| 868 | |
| 869 DEVICE_XT_APP_SHELL (d) = app_shell; | |
| 870 | |
| 871 #ifdef HAVE_XIM | |
| 872 XIM_init_device(d); | |
| 873 #endif /* HAVE_XIM */ | |
| 874 | |
| 875 /* Realize the app_shell so that its window exists for GC creation purposes, | |
| 876 and set it to the size of the root window for child placement purposes */ | |
| 877 { | |
| 878 Arg al[5]; | |
| 879 XtSetArg (al[0], XtNmappedWhenManaged, False); | |
| 880 XtSetArg (al[1], XtNx, 0); | |
| 881 XtSetArg (al[2], XtNy, 0); | |
| 882 XtSetArg (al[3], XtNwidth, WidthOfScreen (ScreenOfDisplay (dpy, screen))); | |
| 883 XtSetArg (al[4], XtNheight, HeightOfScreen (ScreenOfDisplay (dpy, screen))); | |
| 884 XtSetValues (app_shell, al, countof (al)); | |
| 885 XtRealizeWidget (app_shell); | |
| 886 } | |
| 887 | |
| 888 #ifdef HAVE_WMCOMMAND | |
| 889 { | |
| 890 int new_argc; | |
| 442 | 891 Extbyte **new_argv; |
| 428 | 892 make_argc_argv (Vcommand_line_args, &new_argc, &new_argv); |
| 442 | 893 XSetCommand (XtDisplay (app_shell), XtWindow (app_shell), |
| 894 (char **) new_argv, new_argc); | |
| 428 | 895 free_argc_argv (new_argv); |
| 896 } | |
| 897 #endif /* HAVE_WMCOMMAND */ | |
| 898 | |
| 899 | |
| 900 #ifdef HAVE_OFFIX_DND | |
| 771 | 901 DndInitialize (app_shell); |
| 428 | 902 #endif |
| 903 | |
| 904 Vx_initial_argv_list = make_arg_list (argc, argv); | |
| 905 free_argc_argv (argv); | |
| 906 | |
| 907 DEVICE_X_WM_COMMAND_FRAME (d) = Qnil; | |
| 908 | |
| 909 sanity_check_geometry_resource (dpy); | |
| 910 | |
| 911 /* In event-Xt.c */ | |
| 912 x_init_modifier_mapping (d); | |
| 913 | |
| 914 DEVICE_INFD (d) = DEVICE_OUTFD (d) = ConnectionNumber (dpy); | |
| 915 init_baud_rate (d); | |
| 916 init_one_device (d); | |
| 917 | |
| 771 | 918 DEVICE_X_GC_CACHE (d) = make_gc_cache (dpy, XtWindow (app_shell)); |
| 428 | 919 DEVICE_X_GRAY_PIXMAP (d) = None; |
| 920 Xatoms_of_device_x (d); | |
| 440 | 921 Xatoms_of_select_x (d); |
| 428 | 922 Xatoms_of_objects_x (d); |
| 923 x_init_device_class (d); | |
| 924 | |
| 925 /* Run the elisp side of the X device initialization. */ | |
| 926 call0 (Qinit_pre_x_win); | |
| 927 } | |
| 928 | |
| 929 static void | |
| 2286 | 930 x_finish_init_device (struct device *UNUSED (d), Lisp_Object UNUSED (props)) |
| 428 | 931 { |
| 932 call0 (Qinit_post_x_win); | |
| 933 } | |
| 934 | |
| 935 static void | |
| 936 x_mark_device (struct device *d) | |
| 937 { | |
| 938 mark_object (DEVICE_X_WM_COMMAND_FRAME (d)); | |
| 939 mark_object (DEVICE_X_DATA (d)->x_keysym_map_hash_table); | |
| 940 } | |
| 941 | |
| 942 | |
| 943 /************************************************************************/ | |
| 944 /* closing an X connection */ | |
| 945 /************************************************************************/ | |
| 946 | |
| 4117 | 947 #ifndef NEW_GC |
| 428 | 948 static void |
| 949 free_x_device_struct (struct device *d) | |
| 950 { | |
| 1726 | 951 xfree (d->device_data, void *); |
| 4117 | 952 } |
| 3092 | 953 #endif /* not NEW_GC */ |
| 428 | 954 |
| 955 static void | |
| 956 x_delete_device (struct device *d) | |
| 957 { | |
| 958 Display *display; | |
| 959 #ifdef FREE_CHECKING | |
| 960 extern void (*__free_hook) (void *); | |
| 961 int checking_free; | |
| 962 #endif | |
| 963 | |
| 964 display = DEVICE_X_DISPLAY (d); | |
| 965 | |
| 966 if (display) | |
| 967 { | |
| 968 #ifdef FREE_CHECKING | |
| 969 checking_free = (__free_hook != 0); | |
| 970 | |
| 971 /* Disable strict free checking, to avoid bug in X library */ | |
| 972 if (checking_free) | |
| 973 disable_strict_free_check (); | |
| 974 #endif | |
| 975 | |
| 976 free_gc_cache (DEVICE_X_GC_CACHE (d)); | |
| 977 if (DEVICE_X_DATA (d)->x_modifier_keymap) | |
| 978 XFreeModifiermap (DEVICE_X_DATA (d)->x_modifier_keymap); | |
| 979 if (DEVICE_X_DATA (d)->x_keysym_map) | |
| 980 XFree ((char *) DEVICE_X_DATA (d)->x_keysym_map); | |
| 981 | |
| 982 if (DEVICE_XT_APP_SHELL (d)) | |
| 983 { | |
| 984 XtDestroyWidget (DEVICE_XT_APP_SHELL (d)); | |
| 985 DEVICE_XT_APP_SHELL (d) = NULL; | |
| 986 } | |
| 987 | |
| 988 XtCloseDisplay (display); | |
| 989 DEVICE_X_DISPLAY (d) = 0; | |
| 990 #ifdef FREE_CHECKING | |
| 991 if (checking_free) | |
| 992 enable_strict_free_check (); | |
| 993 #endif | |
| 994 } | |
| 995 | |
| 4117 | 996 #ifndef NEW_GC |
| 428 | 997 free_x_device_struct (d); |
| 4117 | 998 #endif /* not NEW_GC */ |
| 428 | 999 } |
| 1000 | |
| 1001 | |
| 1002 /************************************************************************/ | |
| 1003 /* handle X errors */ | |
| 1004 /************************************************************************/ | |
| 1005 | |
| 442 | 1006 const char * |
| 428 | 1007 x_event_name (int event_type) |
| 1008 { | |
| 442 | 1009 static const char *events[] = |
| 428 | 1010 { |
| 1011 "0: ERROR!", | |
| 1012 "1: REPLY", | |
| 1013 "KeyPress", | |
| 1014 "KeyRelease", | |
| 1015 "ButtonPress", | |
| 1016 "ButtonRelease", | |
| 1017 "MotionNotify", | |
| 1018 "EnterNotify", | |
| 1019 "LeaveNotify", | |
| 1020 "FocusIn", | |
| 1021 "FocusOut", | |
| 1022 "KeymapNotify", | |
| 1023 "Expose", | |
| 1024 "GraphicsExpose", | |
| 1025 "NoExpose", | |
| 1026 "VisibilityNotify", | |
| 1027 "CreateNotify", | |
| 1028 "DestroyNotify", | |
| 1029 "UnmapNotify", | |
| 1030 "MapNotify", | |
| 1031 "MapRequest", | |
| 1032 "ReparentNotify", | |
| 1033 "ConfigureNotify", | |
| 1034 "ConfigureRequest", | |
| 1035 "GravityNotify", | |
| 1036 "ResizeRequest", | |
| 1037 "CirculateNotify", | |
| 1038 "CirculateRequest", | |
| 1039 "PropertyNotify", | |
| 1040 "SelectionClear", | |
| 1041 "SelectionRequest", | |
| 1042 "SelectionNotify", | |
| 1043 "ColormapNotify", | |
| 1044 "ClientMessage", | |
| 1045 "MappingNotify", | |
| 1046 "LASTEvent" | |
| 1047 }; | |
| 1048 | |
| 1049 if (event_type < 0 || event_type >= countof (events)) | |
| 1050 return NULL; | |
| 1051 return events [event_type]; | |
| 1052 } | |
| 1053 | |
| 1054 /* Handling errors. | |
| 1055 | |
| 1056 If an X error occurs which we are not expecting, we have no alternative | |
| 1057 but to print it to stderr. It would be nice to stuff it into a pop-up | |
| 1058 buffer, or to print it in the minibuffer, but that's not possible, because | |
| 1059 one is not allowed to do any I/O on the display connection from an error | |
| 1060 handler. The guts of Xlib expect these functions to either return or exit. | |
| 1061 | |
| 1062 However, there are occasions when we might expect an error to reasonably | |
| 1063 occur. The interface to this is as follows: | |
| 1064 | |
| 1065 Before calling some X routine which may error, call | |
| 1066 expect_x_error (dpy); | |
| 1067 | |
| 1068 Just after calling the X routine, call either: | |
| 1069 | |
| 1070 x_error_occurred_p (dpy); | |
| 1071 | |
| 1072 to ask whether an error happened (and was ignored), or: | |
| 1073 | |
| 1074 signal_if_x_error (dpy, resumable_p); | |
| 1075 | |
| 1076 which will call Fsignal() with args appropriate to the X error, if there | |
| 1077 was one. (Resumable_p is whether the debugger should be allowed to | |
| 1078 continue from the call to signal.) | |
| 1079 | |
| 1080 You must call one of these two routines immediately after calling the X | |
| 1081 routine; think of them as bookends like BLOCK_INPUT and UNBLOCK_INPUT. | |
| 1082 */ | |
| 1083 | |
| 1084 static int error_expected; | |
| 1085 static int error_occurred; | |
| 1086 static XErrorEvent last_error; | |
| 1087 | |
| 1088 /* OVERKILL! */ | |
| 1089 | |
| 1090 #ifdef EXTERNAL_WIDGET | |
| 1091 static Lisp_Object | |
| 1092 x_error_handler_do_enqueue (Lisp_Object frame) | |
| 1093 { | |
| 1094 enqueue_magic_eval_event (io_error_delete_frame, frame); | |
| 1095 return Qt; | |
| 1096 } | |
| 1097 | |
| 1098 static Lisp_Object | |
| 2333 | 1099 x_error_handler_error (Lisp_Object UNUSED (data), Lisp_Object UNUSED (dummy)) |
| 428 | 1100 { |
| 1101 return Qnil; | |
| 1102 } | |
| 1103 #endif /* EXTERNAL_WIDGET */ | |
| 1104 | |
| 1105 int | |
| 1106 x_error_handler (Display *disp, XErrorEvent *event) | |
| 1107 { | |
| 1108 if (error_expected) | |
| 1109 { | |
| 1110 error_expected = 0; | |
| 1111 error_occurred = 1; | |
| 1112 last_error = *event; | |
| 1113 } | |
| 1114 else | |
| 1115 { | |
| 853 | 1116 int depth; |
| 1117 | |
| 428 | 1118 #ifdef EXTERNAL_WIDGET |
| 1119 struct frame *f; | |
| 1120 struct device *d = get_device_from_display (disp); | |
| 1121 | |
| 1122 if ((event->error_code == BadWindow || | |
| 1123 event->error_code == BadDrawable) | |
| 1124 && ((f = x_any_window_to_frame (d, event->resourceid)) != 0)) | |
| 1125 { | |
| 1126 Lisp_Object frame; | |
| 1127 | |
| 1128 /* one of the windows comprising one of our frames has died. | |
| 1129 This occurs particularly with ExternalShell frames when the | |
| 1130 client that owns the ExternalShell's window dies. | |
| 1131 | |
| 1132 We cannot do any I/O on the display connection so we need | |
| 1133 to enqueue an eval event so that the deletion happens | |
| 1134 later. | |
| 1135 | |
| 1136 Furthermore, we need to trap any errors (out-of-memory) that | |
| 1137 may occur when Fenqueue_eval_event is called. | |
| 1138 */ | |
| 1139 | |
| 1140 if (f->being_deleted) | |
| 1141 return 0; | |
| 793 | 1142 frame = wrap_frame (f); |
| 428 | 1143 if (!NILP (condition_case_1 (Qerror, x_error_handler_do_enqueue, |
| 1144 frame, x_error_handler_error, Qnil))) | |
| 1145 { | |
| 1146 f->being_deleted = 1; | |
| 1147 f->visible = 0; | |
| 1148 } | |
| 1149 return 0; | |
| 1150 } | |
| 1151 #endif /* EXTERNAL_WIDGET */ | |
| 1152 | |
| 853 | 1153 /* #### this should issue a warning instead of outputting to stderr */ |
| 1154 depth = begin_dont_check_for_quit (); | |
| 2007 | 1155 #if 0 |
| 1156 /* This ends up calling X, which isn't allowed in an X error handler | |
| 1157 */ | |
| 428 | 1158 stderr_out ("\n%s: ", |
| 1159 (STRINGP (Vinvocation_name) | |
| 1160 ? (char *) XSTRING_DATA (Vinvocation_name) | |
| 1161 : "xemacs")); | |
| 2007 | 1162 #endif |
| 428 | 1163 XmuPrintDefaultErrorMessage (disp, event, stderr); |
| 853 | 1164 unbind_to (depth); |
| 428 | 1165 } |
| 1166 return 0; | |
| 1167 } | |
| 1168 | |
| 1169 void | |
| 1170 expect_x_error (Display *dpy) | |
| 1171 { | |
| 1172 assert (!error_expected); | |
| 1173 XSync (dpy, 0); /* handle pending errors before setting flag */ | |
| 1174 error_expected = 1; | |
| 1175 error_occurred = 0; | |
| 1176 } | |
| 1177 | |
| 1178 int | |
| 1179 x_error_occurred_p (Display *dpy) | |
| 1180 { | |
| 1181 int val; | |
| 1182 XSync (dpy, 0); /* handle pending errors before setting flag */ | |
| 1183 val = error_occurred; | |
| 1184 error_expected = 0; | |
| 1185 error_occurred = 0; | |
| 1186 return val; | |
| 1187 } | |
| 1188 | |
| 1189 int | |
| 1190 signal_if_x_error (Display *dpy, int resumable_p) | |
| 1191 { | |
| 771 | 1192 Extbyte buf[1024]; |
| 867 | 1193 Ibyte num[100]; |
| 428 | 1194 Lisp_Object data; |
| 1195 if (! x_error_occurred_p (dpy)) | |
| 1196 return 0; | |
| 1197 data = Qnil; | |
| 771 | 1198 qxesprintf (num, "0x%X", (unsigned int) last_error.resourceid); |
| 1199 data = Fcons (build_intstring (num), data); | |
| 1200 qxesprintf (num, "%d", last_error.request_code); | |
| 1201 XGetErrorDatabaseText (last_error.display, "XRequest", (char *) num, "", | |
| 1202 buf, sizeof (buf)); | |
| 1203 if (*buf) | |
| 1204 data = Fcons (build_ext_string (buf, Qnative), data); | |
| 1205 else | |
| 1206 { | |
| 1207 qxesprintf (num, "Request-%d", last_error.request_code); | |
| 1208 data = Fcons (build_intstring (num), data); | |
| 1209 } | |
| 428 | 1210 XGetErrorText (last_error.display, last_error.error_code, buf, sizeof (buf)); |
| 771 | 1211 data = Fcons (build_ext_string (buf, Qnative), data); |
| 428 | 1212 again: |
| 1213 Fsignal (Qx_error, data); | |
| 1214 if (! resumable_p) goto again; | |
| 1215 return 1; | |
| 1216 } | |
| 1217 | |
| 1218 int | |
| 1219 x_IO_error_handler (Display *disp) | |
| 1220 { | |
| 1221 /* This function can GC */ | |
| 1222 Lisp_Object dev; | |
| 1223 struct device *d = get_device_from_display_1 (disp); | |
| 1224 | |
| 756 | 1225 if (!d) |
| 1226 d = device_being_initialized; | |
| 1227 | |
| 428 | 1228 assert (d != NULL); |
| 793 | 1229 dev = wrap_device (d); |
| 428 | 1230 |
| 1231 if (NILP (find_nonminibuffer_frame_not_on_device (dev))) | |
| 1232 { | |
| 853 | 1233 int depth = begin_dont_check_for_quit (); |
| 428 | 1234 /* We're going down. */ |
| 867 | 1235 Ibyte *errmess; |
| 771 | 1236 GET_STRERROR (errmess, errno); |
| 1237 stderr_out ("\n%s: Fatal I/O Error %d (%s) on display " | |
| 1238 "connection \"%s\"\n", | |
| 1239 (STRINGP (Vinvocation_name) ? | |
| 1240 (char *) XSTRING_DATA (Vinvocation_name) : "xemacs"), | |
| 1241 errno, errmess, DisplayString (disp)); | |
| 1242 stderr_out (" after %lu requests (%lu known processed) with %d " | |
| 1243 "events remaining.\n", | |
| 1244 NextRequest (disp) - 1, LastKnownRequestProcessed (disp), | |
| 1245 QLength (disp)); | |
| 428 | 1246 /* assert (!_Xdebug); */ |
| 853 | 1247 unbind_to (depth); |
| 428 | 1248 } |
| 1249 else | |
| 1250 { | |
| 867 | 1251 Ibyte *errmess; |
| 771 | 1252 GET_STRERROR (errmess, errno); |
| 428 | 1253 warn_when_safe |
| 1254 (Qx, Qcritical, | |
| 1255 "I/O Error %d (%s) on display connection\n" | |
| 2116 | 1256 " \"%s\" after %lu requests (%lu known processed)\n" |
| 428 | 1257 " with %d events remaining.\n" |
| 1258 " Throwing to top level.\n", | |
| 771 | 1259 errno, errmess, DisplayString (disp), |
| 428 | 1260 NextRequest (disp) - 1, LastKnownRequestProcessed (disp), |
| 1261 QLength (disp)); | |
| 1262 } | |
| 1263 | |
| 1264 /* According to X specs, we should not return from this function, or | |
| 1265 Xlib might just decide to exit(). So we mark the offending | |
| 1266 console for deletion and throw to top level. */ | |
| 1267 if (d) | |
| 3466 | 1268 { |
| 1269 enqueue_magic_eval_event (io_error_delete_device, dev); | |
| 1270 DEVICE_X_BEING_DELETED (d) = 1; | |
| 1271 } | |
| 428 | 1272 Fthrow (Qtop_level, Qnil); |
| 1273 | |
| 2268 | 1274 RETURN_NOT_REACHED (0); |
| 428 | 1275 } |
| 1276 | |
| 1277 DEFUN ("x-debug-mode", Fx_debug_mode, 1, 2, 0, /* | |
| 1278 With a true arg, make the connection to the X server synchronous. | |
| 1279 With false, make it asynchronous. Synchronous connections are much slower, | |
| 1280 but are useful for debugging. (If you get X errors, make the connection | |
| 1281 synchronous, and use a debugger to set a breakpoint on `x_error_handler'. | |
| 1282 Your backtrace of the C stack will now be useful. In asynchronous mode, | |
| 1283 the stack above `x_error_handler' isn't helpful because of buffering.) | |
| 1284 If DEVICE is not specified, the selected device is assumed. | |
| 1285 | |
| 1286 Calling this function is the same as calling the C function `XSynchronize', | |
| 1287 or starting the program with the `-sync' command line argument. | |
| 1288 */ | |
| 1289 (arg, device)) | |
| 1290 { | |
| 1291 struct device *d = decode_x_device (device); | |
| 1292 | |
| 1293 XSynchronize (DEVICE_X_DISPLAY (d), !NILP (arg)); | |
| 1294 | |
| 1295 if (!NILP (arg)) | |
| 1296 message ("X connection is synchronous"); | |
| 1297 else | |
| 1298 message ("X connection is asynchronous"); | |
| 1299 | |
| 1300 return arg; | |
| 1301 } | |
| 1302 | |
| 1303 | |
| 1304 /************************************************************************/ | |
| 1305 /* X resources */ | |
| 1306 /************************************************************************/ | |
| 1307 | |
| 1308 #if 0 /* bah humbug. The whole "widget == resource" stuff is such | |
| 1309 a crock of shit that I'm just going to ignore it all. */ | |
| 1310 | |
| 1311 /* If widget is NULL, we are retrieving device or global face data. */ | |
| 1312 | |
| 1313 static void | |
| 1314 construct_name_list (Display *display, Widget widget, char *fake_name, | |
| 1204 | 1315 char *fake_class, char *name, char *class_) |
| 428 | 1316 { |
| 1317 char *stack [100][2]; | |
| 2552 | 1318 Widget this_widget; |
| 428 | 1319 int count = 0; |
| 1320 char *name_tail, *class_tail; | |
| 1321 | |
| 1322 if (widget) | |
| 1323 { | |
| 2552 | 1324 for (this_widget = widget; this_widget; |
| 1325 this_widget = XtParent (this_widget)) | |
| 428 | 1326 { |
| 2552 | 1327 stack [count][0] = this_widget->core.name; |
| 1328 stack [count][1] = XtClass (this_widget)->core_class.class_name; | |
| 428 | 1329 count++; |
| 1330 } | |
| 1331 count--; | |
| 1332 } | |
| 1333 else if (fake_name && fake_class) | |
| 1334 { | |
| 1335 stack [count][0] = fake_name; | |
| 1336 stack [count][1] = fake_class; | |
| 1337 count++; | |
| 1338 } | |
| 1339 | |
| 1340 /* The root widget is an application shell; resource lookups use the | |
| 1341 specified application name and application class in preference to | |
| 1342 the name/class of that widget (which is argv[0] / "ApplicationShell"). | |
| 1343 Generally the app name and class will be argv[0] / "Emacs" but | |
| 1344 the former can be set via the -name command-line option, and the | |
| 1345 latter can be set by changing `x-emacs-application-class' in | |
| 1346 lisp/term/x-win.el. | |
| 1347 */ | |
| 1348 XtGetApplicationNameAndClass (display, | |
| 1349 &stack [count][0], | |
| 1350 &stack [count][1]); | |
| 1351 | |
| 1352 name [0] = 0; | |
| 1204 | 1353 class_ [0] = 0; |
| 428 | 1354 |
| 1355 name_tail = name; | |
| 1204 | 1356 class_tail = class_; |
| 428 | 1357 for (; count >= 0; count--) |
| 1358 { | |
| 1359 strcat (name_tail, stack [count][0]); | |
| 1360 for (; *name_tail; name_tail++) | |
| 1361 if (*name_tail == '.') *name_tail = '_'; | |
| 1362 strcat (name_tail, "."); | |
| 1363 name_tail++; | |
| 1364 | |
| 1365 strcat (class_tail, stack [count][1]); | |
| 1366 for (; *class_tail; class_tail++) | |
| 1367 if (*class_tail == '.') *class_tail = '_'; | |
| 1368 strcat (class_tail, "."); | |
| 1369 class_tail++; | |
| 1370 } | |
| 1371 } | |
| 1372 | |
| 1373 #endif /* 0 */ | |
| 1374 | |
| 771 | 1375 static Extbyte_dynarr *name_Extbyte_dynarr; |
| 1376 static Extbyte_dynarr *class_Extbyte_dynarr; | |
| 428 | 1377 |
| 1378 /* Given a locale and device specification from x-get-resource or | |
| 1379 x-get-resource-prefix, return the resource prefix and display to | |
| 1380 fetch the resource on. */ | |
| 1381 | |
| 1382 static void | |
| 1383 x_get_resource_prefix (Lisp_Object locale, Lisp_Object device, | |
| 771 | 1384 Display **display_out, Extbyte_dynarr *name, |
| 1204 | 1385 Extbyte_dynarr *class_) |
| 428 | 1386 { |
| 1387 if (NILP (locale)) | |
| 1388 locale = Qglobal; | |
| 1389 if (NILP (Fvalid_specifier_locale_p (locale))) | |
| 563 | 1390 invalid_argument ("Invalid locale", locale); |
| 428 | 1391 if (WINDOWP (locale)) |
| 1392 /* #### I can't come up with any coherent way of naming windows. | |
| 1393 By relative position? That seems tricky because windows | |
| 1394 can change position, be split, etc. By order of creation? | |
| 1395 That seems less than useful. */ | |
| 563 | 1396 signal_error (Qunimplemented, |
| 1397 "Windows currently can't be resourced", locale); | |
| 428 | 1398 |
| 1399 if (!NILP (device) && !DEVICEP (device)) | |
| 1400 CHECK_DEVICE (device); | |
| 1401 if (DEVICEP (device) && !DEVICE_X_P (XDEVICE (device))) | |
| 1402 device = Qnil; | |
| 1403 if (NILP (device)) | |
| 1404 { | |
| 1405 device = DFW_DEVICE (locale); | |
| 1406 if (DEVICEP (device) && !DEVICE_X_P (XDEVICE (device))) | |
| 1407 device = Qnil; | |
| 1408 if (NILP (device)) | |
| 872 | 1409 device = get_default_device (Qx); |
| 428 | 1410 if (NILP (device)) |
| 1411 { | |
| 1412 *display_out = 0; | |
| 1413 return; | |
| 1414 } | |
| 1415 } | |
| 1416 | |
| 1417 *display_out = DEVICE_X_DISPLAY (XDEVICE (device)); | |
| 1418 | |
| 1419 { | |
| 771 | 1420 Extbyte *appname, *appclass; |
| 428 | 1421 int name_len, class_len; |
| 1422 XtGetApplicationNameAndClass (*display_out, &appname, &appclass); | |
| 1423 name_len = strlen (appname); | |
| 1424 class_len = strlen (appclass); | |
| 771 | 1425 Dynarr_add_many (name, appname, name_len); |
| 1204 | 1426 Dynarr_add_many (class_, appclass, class_len); |
| 428 | 1427 validify_resource_component (Dynarr_atp (name, 0), name_len); |
| 1204 | 1428 validify_resource_component (Dynarr_atp (class_, 0), class_len); |
| 428 | 1429 } |
| 1430 | |
| 1431 if (EQ (locale, Qglobal)) | |
| 1432 return; | |
| 1433 if (BUFFERP (locale)) | |
| 1434 { | |
| 1435 Dynarr_add_literal_string (name, ".buffer."); | |
| 1436 /* we know buffer is live; otherwise we got an error above. */ | |
| 1437 Dynarr_add_validified_lisp_string (name, Fbuffer_name (locale)); | |
| 1204 | 1438 Dynarr_add_literal_string (class_, ".EmacsLocaleType.EmacsBuffer"); |
| 428 | 1439 } |
| 1440 else if (FRAMEP (locale)) | |
| 1441 { | |
| 1442 Dynarr_add_literal_string (name, ".frame."); | |
| 1443 /* we know frame is live; otherwise we got an error above. */ | |
| 1444 Dynarr_add_validified_lisp_string (name, Fframe_name (locale)); | |
| 1204 | 1445 Dynarr_add_literal_string (class_, ".EmacsLocaleType.EmacsFrame"); |
| 428 | 1446 } |
| 1447 else | |
| 1448 { | |
| 1449 assert (DEVICEP (locale)); | |
| 1450 Dynarr_add_literal_string (name, ".device."); | |
| 1451 /* we know device is live; otherwise we got an error above. */ | |
| 1452 Dynarr_add_validified_lisp_string (name, Fdevice_name (locale)); | |
| 1204 | 1453 Dynarr_add_literal_string (class_, ".EmacsLocaleType.EmacsDevice"); |
| 428 | 1454 } |
| 1455 return; | |
| 1456 } | |
| 1457 | |
| 1458 DEFUN ("x-get-resource", Fx_get_resource, 3, 6, 0, /* | |
| 1459 Retrieve an X resource from the resource manager. | |
| 1460 | |
| 1461 The first arg is the name of the resource to retrieve, such as "font". | |
| 1462 The second arg is the class of the resource to retrieve, such as "Font". | |
| 3025 | 1463 The third arg must be one of the symbols `string', `integer', `natnum', or |
| 1464 `boolean', specifying the type of object that the database is searched for. | |
| 428 | 1465 The fourth arg is the locale to search for the resources on, and can |
| 3025 | 1466 currently be a buffer, a frame, a device, or `global'. If omitted, it |
| 1467 defaults to `global'. | |
| 428 | 1468 The fifth arg is the device to search for the resources on. (The resource |
| 1469 database for a particular device is constructed by combining non-device- | |
| 1470 specific resources such as any command-line resources specified and any | |
| 1471 app-defaults files found [or the fallback resources supplied by XEmacs, | |
| 1472 if no app-defaults file is found] with device-specific resources such as | |
| 1473 those supplied using xrdb.) If omitted, it defaults to the device of | |
| 1474 LOCALE, if a device can be derived (i.e. if LOCALE is a frame or device), | |
| 1475 and otherwise defaults to the value of `default-x-device'. | |
| 1476 The sixth arg NOERROR, if non-nil, means do not signal an error if a | |
| 1477 bogus resource specification was retrieved (e.g. if a non-integer was | |
| 1478 given when an integer was requested). In this case, a warning is issued | |
| 442 | 1479 instead, unless NOERROR is t, in which case no warning is issued. |
| 428 | 1480 |
| 1481 The resource names passed to this function are looked up relative to the | |
| 1482 locale. | |
| 1483 | |
| 1484 If you want to search for a subresource, you just need to specify the | |
| 1485 resource levels in NAME and CLASS. For example, NAME could be | |
| 1486 "modeline.attributeFont", and CLASS "Face.AttributeFont". | |
| 1487 | |
| 1488 Specifically, | |
| 1489 | |
| 1490 1) If LOCALE is a buffer, a call | |
| 1491 | |
| 1492 (x-get-resource "foreground" "Foreground" 'string SOME-BUFFER) | |
| 1493 | |
| 1494 is an interface to a C call something like | |
| 1495 | |
| 1496 XrmGetResource (db, "xemacs.buffer.BUFFER-NAME.foreground", | |
| 1497 "Emacs.EmacsLocaleType.EmacsBuffer.Foreground", | |
| 1498 "String"); | |
| 1499 | |
| 1500 2) If LOCALE is a frame, a call | |
| 1501 | |
| 1502 (x-get-resource "foreground" "Foreground" 'string SOME-FRAME) | |
| 1503 | |
| 1504 is an interface to a C call something like | |
| 1505 | |
| 1506 XrmGetResource (db, "xemacs.frame.FRAME-NAME.foreground", | |
| 1507 "Emacs.EmacsLocaleType.EmacsFrame.Foreground", | |
| 1508 "String"); | |
| 1509 | |
| 1510 3) If LOCALE is a device, a call | |
| 1511 | |
| 1512 (x-get-resource "foreground" "Foreground" 'string SOME-DEVICE) | |
| 1513 | |
| 1514 is an interface to a C call something like | |
| 1515 | |
| 1516 XrmGetResource (db, "xemacs.device.DEVICE-NAME.foreground", | |
| 1517 "Emacs.EmacsLocaleType.EmacsDevice.Foreground", | |
| 1518 "String"); | |
| 1519 | |
| 3025 | 1520 4) If LOCALE is `global', a call |
| 428 | 1521 |
| 1522 (x-get-resource "foreground" "Foreground" 'string 'global) | |
| 1523 | |
| 1524 is an interface to a C call something like | |
| 1525 | |
| 1526 XrmGetResource (db, "xemacs.foreground", | |
| 1527 "Emacs.Foreground", | |
| 1528 "String"); | |
| 1529 | |
| 3025 | 1530 Note that for `global', no prefix is added other than that of the |
| 428 | 1531 application itself; thus, you can use this locale to retrieve |
| 1532 arbitrary application resources, if you really want to. | |
| 1533 | |
| 1534 The returned value of this function is nil if the queried resource is not | |
| 1535 found. If the third arg is `string', a string is returned, and if it is | |
| 1536 `integer', an integer is returned. If the third arg is `boolean', then the | |
| 1537 returned value is the list (t) for true, (nil) for false, and is nil to | |
| 430 | 1538 mean ``unspecified''. |
| 428 | 1539 */ |
| 1204 | 1540 (name, class_, type, locale, device, noerror)) |
| 428 | 1541 { |
| 771 | 1542 Extbyte *name_string, *class_string; |
| 1543 Extbyte *raw_result; | |
| 428 | 1544 XrmDatabase db; |
| 1545 Display *display; | |
| 578 | 1546 Error_Behavior errb = decode_error_behavior_flag (noerror); |
| 771 | 1547 Lisp_Object codesys; |
| 428 | 1548 |
| 1549 CHECK_STRING (name); | |
| 1204 | 1550 CHECK_STRING (class_); |
| 428 | 1551 CHECK_SYMBOL (type); |
| 1552 | |
| 771 | 1553 Dynarr_reset (name_Extbyte_dynarr); |
| 1554 Dynarr_reset (class_Extbyte_dynarr); | |
| 428 | 1555 |
| 1556 x_get_resource_prefix (locale, device, &display, | |
| 771 | 1557 name_Extbyte_dynarr, class_Extbyte_dynarr); |
| 428 | 1558 if (!display) |
| 1559 return Qnil; | |
| 1560 | |
| 1561 db = XtDatabase (display); | |
| 771 | 1562 codesys = coding_system_of_xrm_database (db); |
| 1563 Dynarr_add (name_Extbyte_dynarr, '.'); | |
| 1564 Dynarr_add_lisp_string (name_Extbyte_dynarr, name, Qbinary); | |
| 1565 Dynarr_add (class_Extbyte_dynarr, '.'); | |
| 1204 | 1566 Dynarr_add_lisp_string (class_Extbyte_dynarr, class_, Qbinary); |
| 771 | 1567 Dynarr_add (name_Extbyte_dynarr, '\0'); |
| 1568 Dynarr_add (class_Extbyte_dynarr, '\0'); | |
| 428 | 1569 |
| 771 | 1570 name_string = Dynarr_atp (name_Extbyte_dynarr, 0); |
| 1571 class_string = Dynarr_atp (class_Extbyte_dynarr, 0); | |
| 428 | 1572 |
| 1573 { | |
| 1574 XrmValue xrm_value; | |
| 1575 XrmName namelist[100]; | |
| 1576 XrmClass classlist[100]; | |
| 1577 XrmName *namerest = namelist; | |
| 1578 XrmClass *classrest = classlist; | |
| 1579 XrmRepresentation xrm_type; | |
| 1580 XrmRepresentation string_quark; | |
| 1581 int result; | |
| 1582 XrmStringToNameList (name_string, namelist); | |
| 1583 XrmStringToClassList (class_string, classlist); | |
| 1584 string_quark = XrmStringToQuark ("String"); | |
| 1585 | |
| 1586 /* ensure that they have the same length */ | |
| 1587 while (namerest[0] && classrest[0]) | |
| 1588 namerest++, classrest++; | |
| 1589 if (namerest[0] || classrest[0]) | |
| 563 | 1590 { |
| 1591 maybe_signal_error_2 | |
| 1592 (Qstructure_formation_error, | |
| 1204 | 1593 "class list and name list must be the same length", name, class_, |
| 563 | 1594 Qresource, errb); |
| 1595 return Qnil; | |
| 1596 } | |
| 428 | 1597 result = XrmQGetResource (db, namelist, classlist, &xrm_type, &xrm_value); |
| 1598 | |
| 1599 if (result != True || xrm_type != string_quark) | |
| 1600 return Qnil; | |
| 771 | 1601 raw_result = (Extbyte *) xrm_value.addr; |
| 428 | 1602 } |
| 1603 | |
| 1604 if (EQ (type, Qstring)) | |
| 771 | 1605 return build_ext_string (raw_result, codesys); |
| 428 | 1606 else if (EQ (type, Qboolean)) |
| 1607 { | |
| 771 | 1608 if (!strcasecmp (raw_result, "off") || |
| 1609 !strcasecmp (raw_result, "false") || | |
| 1610 !strcasecmp (raw_result, "no")) | |
| 428 | 1611 return Fcons (Qnil, Qnil); |
| 771 | 1612 if (!strcasecmp (raw_result, "on") || |
| 1613 !strcasecmp (raw_result, "true") || | |
| 1614 !strcasecmp (raw_result, "yes")) | |
| 428 | 1615 return Fcons (Qt, Qnil); |
| 563 | 1616 return maybe_signal_continuable_error_2 |
| 1617 (Qinvalid_operation, "Can't convert to a Boolean", | |
| 771 | 1618 build_ext_string (name_string, Qbinary), |
| 1619 build_ext_string (raw_result, codesys), Qresource, | |
| 563 | 1620 errb); |
| 428 | 1621 } |
| 1622 else if (EQ (type, Qinteger) || EQ (type, Qnatnum)) | |
| 1623 { | |
| 1624 int i; | |
| 1625 char c; | |
| 1626 if (1 != sscanf (raw_result, "%d%c", &i, &c)) | |
| 563 | 1627 return maybe_signal_continuable_error_2 |
| 1628 (Qinvalid_operation, "Can't convert to an integer", | |
| 771 | 1629 build_ext_string (name_string, Qbinary), |
| 1630 build_ext_string (raw_result, codesys), Qresource, | |
| 563 | 1631 errb); |
| 428 | 1632 else if (EQ (type, Qnatnum) && i < 0) |
| 563 | 1633 return maybe_signal_continuable_error_2 |
| 1634 (Qinvalid_argument, "Invalid numerical value for resource", | |
| 771 | 1635 make_int (i), build_ext_string (name_string, Qbinary), |
| 1636 Qresource, errb); | |
| 428 | 1637 else |
| 1638 return make_int (i); | |
| 1639 } | |
| 1640 else | |
| 1641 { | |
| 1642 return maybe_signal_continuable_error | |
| 563 | 1643 (Qwrong_type_argument, "Should be string, integer, natnum or boolean", |
| 1644 type, Qresource, errb); | |
| 428 | 1645 } |
| 1646 } | |
| 1647 | |
| 1648 DEFUN ("x-get-resource-prefix", Fx_get_resource_prefix, 1, 2, 0, /* | |
| 1649 Return the resource prefix for LOCALE on DEVICE. | |
| 1650 The resource prefix is the strings used to prefix resources if | |
| 1651 the LOCALE and DEVICE arguments were passed to `x-get-resource'. | |
| 1652 The returned value is a cons of a name prefix and a class prefix. | |
| 1653 For example, if LOCALE is a frame, the returned value might be | |
| 1654 \("xemacs.frame.FRAME-NAME" . "Emacs.EmacsLocaleType.EmacsFrame"). | |
| 1655 If no valid X device for resourcing can be obtained, this function | |
| 1656 returns nil. (In such a case, `x-get-resource' would always return nil.) | |
| 1657 */ | |
| 1658 (locale, device)) | |
| 1659 { | |
| 1660 Display *display; | |
| 1661 | |
| 771 | 1662 Dynarr_reset (name_Extbyte_dynarr ); |
| 1663 Dynarr_reset (class_Extbyte_dynarr); | |
| 428 | 1664 |
| 1665 x_get_resource_prefix (locale, device, &display, | |
| 771 | 1666 name_Extbyte_dynarr, class_Extbyte_dynarr); |
| 428 | 1667 if (!display) |
| 1668 return Qnil; | |
| 1669 | |
| 867 | 1670 return Fcons (make_string ((Ibyte *) Dynarr_atp (name_Extbyte_dynarr, 0), |
| 771 | 1671 Dynarr_length (name_Extbyte_dynarr)), |
| 867 | 1672 make_string ((Ibyte *) Dynarr_atp (class_Extbyte_dynarr, 0), |
| 771 | 1673 Dynarr_length (class_Extbyte_dynarr))); |
| 428 | 1674 } |
| 1675 | |
| 1676 DEFUN ("x-put-resource", Fx_put_resource, 1, 2, 0, /* | |
| 1677 Add a resource to the resource database for DEVICE. | |
| 1678 RESOURCE-LINE specifies the resource to add and should be a | |
| 1679 standard resource specification. | |
| 1680 */ | |
| 1681 (resource_line, device)) | |
| 1682 { | |
| 1683 struct device *d = decode_device (device); | |
| 1684 | |
| 1685 if (DEVICE_X_P (d)) | |
| 1686 { | |
| 1687 XrmDatabase db = XtDatabase (DEVICE_X_DISPLAY (d)); | |
| 771 | 1688 Extbyte *str, *colon_pos; |
| 1689 | |
| 1690 CHECK_STRING (resource_line); | |
| 1691 LISP_STRING_TO_EXTERNAL (resource_line, str, | |
| 1692 coding_system_of_xrm_database (db)); | |
| 1693 if (!(colon_pos = strchr (str, ':')) || strchr (str, '\n')) | |
| 1694 invalid: | |
| 1695 syntax_error ("Invalid resource line", resource_line); | |
| 1696 if ((int) | |
| 1697 strspn (str, | |
| 1698 /* Only the following chars are allowed before the colon */ | |
| 1699 " \t.*?abcdefghijklmnopqrstuvwxyz" | |
| 1700 "ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789_-") | |
| 1701 != colon_pos - str) | |
| 1702 goto invalid; | |
| 1703 | |
| 428 | 1704 XrmPutLineResource (&db, str); |
| 1705 } | |
| 1706 | |
| 1707 return Qnil; | |
| 1708 } | |
| 1709 | |
| 1710 | |
| 1711 /************************************************************************/ | |
| 1712 /* display information functions */ | |
| 1713 /************************************************************************/ | |
| 1714 | |
| 1715 DEFUN ("default-x-device", Fdefault_x_device, 0, 0, 0, /* | |
| 1716 Return the default X device for resourcing. | |
| 1717 This is the first-created X device that still exists. | |
| 872 | 1718 See also `default-device'. |
| 428 | 1719 */ |
| 1720 ()) | |
| 1721 { | |
| 872 | 1722 return get_default_device (Qx); |
| 428 | 1723 } |
| 1724 | |
| 1725 DEFUN ("x-display-visual-class", Fx_display_visual_class, 0, 1, 0, /* | |
| 1726 Return the visual class of the X display DEVICE is using. | |
| 1727 This can be altered from the default at startup using the XResource "EmacsVisual". | |
| 1728 The returned value will be one of the symbols `static-gray', `gray-scale', | |
| 1729 `static-color', `pseudo-color', `true-color', or `direct-color'. | |
| 1730 */ | |
| 1731 (device)) | |
| 1732 { | |
| 1733 Visual *vis = DEVICE_X_VISUAL (decode_x_device (device)); | |
| 1204 | 1734 switch (vis->X_CLASSFIELD) |
| 428 | 1735 { |
| 1736 case StaticGray: return intern ("static-gray"); | |
| 1737 case GrayScale: return intern ("gray-scale"); | |
| 1738 case StaticColor: return intern ("static-color"); | |
| 1739 case PseudoColor: return intern ("pseudo-color"); | |
| 1740 case TrueColor: return intern ("true-color"); | |
| 1741 case DirectColor: return intern ("direct-color"); | |
| 1742 default: | |
| 563 | 1743 invalid_state ("display has an unknown visual class", Qunbound); |
| 428 | 1744 return Qnil; /* suppress compiler warning */ |
| 1745 } | |
| 1746 } | |
| 1747 | |
| 1748 DEFUN ("x-display-visual-depth", Fx_display_visual_depth, 0, 1, 0, /* | |
| 1749 Return the bitplane depth of the visual the X display DEVICE is using. | |
| 1750 */ | |
| 1751 (device)) | |
| 1752 { | |
| 1753 return make_int (DEVICE_X_DEPTH (decode_x_device (device))); | |
| 1754 } | |
| 1755 | |
| 1756 static Lisp_Object | |
| 1757 x_device_system_metrics (struct device *d, | |
| 1758 enum device_metrics m) | |
| 1759 { | |
| 1760 Display *dpy = DEVICE_X_DISPLAY (d); | |
| 1761 | |
| 1762 switch (m) | |
| 1763 { | |
| 1764 case DM_size_device: | |
| 1765 return Fcons (make_int (DisplayWidth (dpy, DefaultScreen (dpy))), | |
| 1766 make_int (DisplayHeight (dpy, DefaultScreen (dpy)))); | |
| 1767 case DM_size_device_mm: | |
| 1768 return Fcons (make_int (DisplayWidthMM (dpy, DefaultScreen (dpy))), | |
| 1769 make_int (DisplayHeightMM (dpy, DefaultScreen (dpy)))); | |
| 1770 case DM_num_bit_planes: | |
| 1771 return make_int (DisplayPlanes (dpy, DefaultScreen (dpy))); | |
| 1772 case DM_num_color_cells: | |
| 1773 return make_int (DisplayCells (dpy, DefaultScreen (dpy))); | |
| 1942 | 1774 case DM_num_screens: |
| 1775 return make_int (ScreenCount (dpy)); | |
| 1776 case DM_backing_store: | |
| 1777 switch (DoesBackingStore (DefaultScreenOfDisplay (dpy))) | |
| 1778 { | |
| 1779 case Always: | |
| 1780 return intern ("always"); | |
| 1781 case WhenMapped: | |
| 1782 return intern ("when-mapped"); | |
| 1783 default: | |
| 1784 return intern ("not-useful"); | |
| 1785 } | |
| 1786 case DM_save_under: | |
| 1787 return (DoesSaveUnders (DefaultScreenOfDisplay (dpy)) == True) | |
| 1788 ? Qt : Qnil; | |
| 428 | 1789 default: /* No such device metric property for X devices */ |
| 1790 return Qunbound; | |
| 1791 } | |
| 1792 } | |
| 1793 | |
| 1794 DEFUN ("x-server-vendor", Fx_server_vendor, 0, 1, 0, /* | |
| 1795 Return the vendor ID string of the X server DEVICE is on. | |
| 1796 Return the empty string if the vendor ID string cannot be determined. | |
| 1797 */ | |
| 1798 (device)) | |
| 1799 { | |
| 1800 Display *dpy = get_x_display (device); | |
| 2367 | 1801 Extbyte *vendor = ServerVendor (dpy); |
| 428 | 1802 |
| 2367 | 1803 return build_ext_string (vendor ? vendor : "", Qx_hpc_encoding); |
| 428 | 1804 } |
| 1805 | |
| 1806 DEFUN ("x-server-version", Fx_server_version, 0, 1, 0, /* | |
| 1807 Return the version numbers of the X server DEVICE is on. | |
| 1808 The returned value is a list of three integers: the major and minor | |
| 1809 version numbers of the X Protocol in use, and the vendor-specific release | |
| 1810 number. See also `x-server-vendor'. | |
| 1811 */ | |
| 1812 (device)) | |
| 1813 { | |
| 1814 Display *dpy = get_x_display (device); | |
| 1815 | |
| 1816 return list3 (make_int (ProtocolVersion (dpy)), | |
| 1817 make_int (ProtocolRevision (dpy)), | |
| 1818 make_int (VendorRelease (dpy))); | |
| 1819 } | |
| 1820 | |
| 1821 DEFUN ("x-valid-keysym-name-p", Fx_valid_keysym_name_p, 1, 1, 0, /* | |
| 1822 Return true if KEYSYM names a keysym that the X library knows about. | |
| 1823 Valid keysyms are listed in the files /usr/include/X11/keysymdef.h and in | |
| 1824 /usr/lib/X11/XKeysymDB, or whatever the equivalents are on your system. | |
| 1825 */ | |
| 1826 (keysym)) | |
| 1827 { | |
| 2367 | 1828 const Extbyte *keysym_ext; |
| 428 | 1829 |
| 1830 CHECK_STRING (keysym); | |
| 442 | 1831 LISP_STRING_TO_EXTERNAL (keysym, keysym_ext, Qctext); |
| 428 | 1832 |
| 1833 return XStringToKeysym (keysym_ext) ? Qt : Qnil; | |
| 1834 } | |
| 1835 | |
| 1836 DEFUN ("x-keysym-hash-table", Fx_keysym_hash_table, 0, 1, 0, /* | |
| 440 | 1837 Return a hash table containing a key for all keysyms on DEVICE. |
| 1838 DEVICE must be an X11 display device. See `x-keysym-on-keyboard-p'. | |
| 428 | 1839 */ |
| 1840 (device)) | |
| 1841 { | |
| 1842 struct device *d = decode_device (device); | |
| 1843 if (!DEVICE_X_P (d)) | |
| 563 | 1844 gui_error ("Not an X device", device); |
| 428 | 1845 |
| 1846 return DEVICE_X_DATA (d)->x_keysym_map_hash_table; | |
| 1847 } | |
| 1848 | |
| 1849 DEFUN ("x-keysym-on-keyboard-sans-modifiers-p", Fx_keysym_on_keyboard_sans_modifiers_p, | |
| 1850 1, 2, 0, /* | |
| 1851 Return true if KEYSYM names a key on the keyboard of DEVICE. | |
| 1852 More precisely, return true if pressing a physical key | |
| 1853 on the keyboard of DEVICE without any modifier keys generates KEYSYM. | |
| 1854 Valid keysyms are listed in the files /usr/include/X11/keysymdef.h and in | |
| 1855 /usr/lib/X11/XKeysymDB, or whatever the equivalents are on your system. | |
| 1856 The keysym name can be provided in two forms: | |
| 1857 - if keysym is a string, it must be the name as known to X windows. | |
| 1858 - if keysym is a symbol, it must be the name as known to XEmacs. | |
| 1859 The two names differ in capitalization and underscoring. | |
| 1860 */ | |
| 1861 (keysym, device)) | |
| 1862 { | |
| 1863 struct device *d = decode_device (device); | |
| 1864 if (!DEVICE_X_P (d)) | |
| 563 | 1865 gui_error ("Not an X device", device); |
| 428 | 1866 |
| 1867 return (EQ (Qsans_modifiers, | |
| 1868 Fgethash (keysym, DEVICE_X_KEYSYM_MAP_HASH_TABLE (d), Qnil)) ? | |
| 1869 Qt : Qnil); | |
| 1870 } | |
| 1871 | |
| 1872 | |
| 1873 DEFUN ("x-keysym-on-keyboard-p", Fx_keysym_on_keyboard_p, 1, 2, 0, /* | |
| 1874 Return true if KEYSYM names a key on the keyboard of DEVICE. | |
| 1875 More precisely, return true if some keystroke (possibly including modifiers) | |
| 1876 on the keyboard of DEVICE keys generates KEYSYM. | |
| 1877 Valid keysyms are listed in the files /usr/include/X11/keysymdef.h and in | |
| 1878 /usr/lib/X11/XKeysymDB, or whatever the equivalents are on your system. | |
| 1879 The keysym name can be provided in two forms: | |
| 1880 - if keysym is a string, it must be the name as known to X windows. | |
| 1881 - if keysym is a symbol, it must be the name as known to XEmacs. | |
| 1882 The two names differ in capitalization and underscoring. | |
| 2828 | 1883 |
| 1884 This function is not entirely trustworthy, in that Xlib compose processing | |
| 1885 can produce keysyms that XEmacs will not have seen when it examined the | |
| 1886 keysyms available on startup. So pressing `dead-diaeresis' and then 'a' may | |
| 1887 pass `adiaeresis' to XEmacs, or (in some implementations) even `U00E4', | |
| 1888 where `(x-keysym-on-keyboard-p 'adiaeresis)' and `(x-keysym-on-keyboard-p | |
| 1889 'U00E4)' would both have returned nil. Subsequent to XEmacs seeing a keysym | |
| 1890 it was previously unaware of, the predicate will take note of it, though. | |
| 428 | 1891 */ |
| 1892 (keysym, device)) | |
| 1893 { | |
| 1894 struct device *d = decode_device (device); | |
| 1895 if (!DEVICE_X_P (d)) | |
| 563 | 1896 gui_error ("Not an X device", device); |
| 428 | 1897 |
| 1898 return (NILP (Fgethash (keysym, DEVICE_X_KEYSYM_MAP_HASH_TABLE (d), Qnil)) ? | |
| 1899 Qnil : Qt); | |
| 1900 } | |
| 1901 | |
| 1902 | |
| 1903 /************************************************************************/ | |
| 1904 /* grabs and ungrabs */ | |
| 1905 /************************************************************************/ | |
| 1906 | |
| 1907 DEFUN ("x-grab-pointer", Fx_grab_pointer, 0, 3, 0, /* | |
| 1908 Grab the pointer and restrict it to its current window. | |
| 1909 If optional DEVICE argument is nil, the default device will be used. | |
| 1910 If optional CURSOR argument is non-nil, change the pointer shape to that | |
| 1911 until `x-ungrab-pointer' is called (it should be an object returned by the | |
| 1912 `make-cursor-glyph' function). | |
| 1913 If the second optional argument IGNORE-KEYBOARD is non-nil, ignore all | |
| 1914 keyboard events during the grab. | |
| 1915 Returns t if the grab is successful, nil otherwise. | |
| 1916 */ | |
| 1917 (device, cursor, ignore_keyboard)) | |
| 1918 { | |
| 1919 Window w; | |
| 1920 int pointer_mode, result; | |
| 1921 struct device *d = decode_x_device (device); | |
| 1922 | |
| 1923 if (!NILP (cursor)) | |
| 1924 { | |
| 1925 CHECK_POINTER_GLYPH (cursor); | |
| 1926 cursor = glyph_image_instance (cursor, device, ERROR_ME, 0); | |
| 1927 } | |
| 1928 | |
| 1929 if (!NILP (ignore_keyboard)) | |
| 1930 pointer_mode = GrabModeSync; | |
| 1931 else | |
| 1932 pointer_mode = GrabModeAsync; | |
| 1933 | |
| 1934 w = XtWindow (FRAME_X_TEXT_WIDGET (device_selected_frame (d))); | |
| 1935 | |
| 1936 /* #### Possibly this needs to gcpro the cursor somehow, but it doesn't | |
| 1937 seem to cause a problem if XFreeCursor is called on a cursor in use | |
| 1938 in a grab; I suppose the X server counts the grab as a reference | |
| 1939 and doesn't free it until it exits? */ | |
| 1940 result = XGrabPointer (DEVICE_X_DISPLAY (d), w, | |
| 1941 False, | |
| 1942 ButtonMotionMask | | |
| 1943 ButtonPressMask | | |
| 1944 ButtonReleaseMask | | |
| 1945 PointerMotionHintMask, | |
| 1946 GrabModeAsync, /* Keep pointer events flowing */ | |
| 1947 pointer_mode, /* Stall keyboard events */ | |
| 1948 w, /* Stay in this window */ | |
| 1949 (NILP (cursor) ? 0 | |
| 1950 : XIMAGE_INSTANCE_X_CURSOR (cursor)), | |
| 1951 CurrentTime); | |
| 1952 return (result == GrabSuccess) ? Qt : Qnil; | |
| 1953 } | |
| 1954 | |
| 1955 DEFUN ("x-ungrab-pointer", Fx_ungrab_pointer, 0, 1, 0, /* | |
| 1956 Release a pointer grab made with `x-grab-pointer'. | |
| 1957 If optional first arg DEVICE is nil the default device is used. | |
| 1958 If it is t the pointer will be released on all X devices. | |
| 1959 */ | |
| 1960 (device)) | |
| 1961 { | |
| 1962 if (!EQ (device, Qt)) | |
| 1963 { | |
| 1964 Display *dpy = get_x_display (device); | |
| 1965 XUngrabPointer (dpy, CurrentTime); | |
| 1966 } | |
| 1967 else | |
| 1968 { | |
| 1969 Lisp_Object devcons, concons; | |
| 1970 | |
| 1971 DEVICE_LOOP_NO_BREAK (devcons, concons) | |
| 1972 { | |
| 1973 struct device *d = XDEVICE (XCAR (devcons)); | |
| 1974 | |
| 1975 if (DEVICE_X_P (d)) | |
| 1976 XUngrabPointer (DEVICE_X_DISPLAY (d), CurrentTime); | |
| 1977 } | |
| 1978 } | |
| 1979 | |
| 1980 return Qnil; | |
| 1981 } | |
| 1982 | |
| 1983 DEFUN ("x-grab-keyboard", Fx_grab_keyboard, 0, 1, 0, /* | |
| 1984 Grab the keyboard on the given device (defaulting to the selected one). | |
| 1985 So long as the keyboard is grabbed, all keyboard events will be delivered | |
| 1986 to emacs -- it is not possible for other X clients to eavesdrop on them. | |
| 1987 Ungrab the keyboard with `x-ungrab-keyboard' (use an unwind-protect). | |
| 1988 Returns t if the grab is successful, nil otherwise. | |
| 1989 */ | |
| 1990 (device)) | |
| 1991 { | |
| 1992 struct device *d = decode_x_device (device); | |
| 1993 Window w = XtWindow (FRAME_X_TEXT_WIDGET (device_selected_frame (d))); | |
| 1994 Display *dpy = DEVICE_X_DISPLAY (d); | |
| 1995 Status status; | |
| 1996 XSync (dpy, False); | |
| 1997 status = XGrabKeyboard (dpy, w, True, | |
| 1998 /* I don't really understand sync-vs-async | |
| 1999 grabs, but this is what xterm does. */ | |
| 2000 GrabModeAsync, GrabModeAsync, | |
| 2001 /* Use the timestamp of the last user action | |
| 2002 read by emacs proper; xterm uses CurrentTime | |
| 2003 but there's a comment that says "wrong"... | |
| 2004 (Despite the name this is the time of the | |
| 2005 last key or mouse event.) */ | |
| 2006 DEVICE_X_MOUSE_TIMESTAMP (d)); | |
| 2007 if (status == GrabSuccess) | |
| 2008 { | |
| 2009 /* The XUngrabKeyboard should generate a FocusIn back to this | |
| 2010 window but it doesn't unless we explicitly set focus to the | |
| 2011 window first (which should already have it. The net result | |
| 2012 is that without this call when x-ungrab-keyboard is called | |
| 2013 the selected frame ends up not having focus. */ | |
| 2014 XSetInputFocus (dpy, w, RevertToParent, DEVICE_X_MOUSE_TIMESTAMP (d)); | |
| 2015 return Qt; | |
| 2016 } | |
| 2017 else | |
| 2018 return Qnil; | |
| 2019 } | |
| 2020 | |
| 2021 DEFUN ("x-ungrab-keyboard", Fx_ungrab_keyboard, 0, 1, 0, /* | |
| 2022 Release a keyboard grab made with `x-grab-keyboard'. | |
| 2023 */ | |
| 2024 (device)) | |
| 2025 { | |
| 2026 Display *dpy = get_x_display (device); | |
| 2027 XUngrabKeyboard (dpy, CurrentTime); | |
| 2028 return Qnil; | |
| 2029 } | |
| 2030 | |
| 2031 DEFUN ("x-get-font-path", Fx_get_font_path, 0, 1, 0, /* | |
| 2032 Get the X Server's font path. | |
| 2033 | |
| 2034 See also `x-set-font-path'. | |
| 2035 */ | |
| 2036 (device)) | |
| 2037 { | |
| 2038 Display *dpy = get_x_display (device); | |
| 2039 int ndirs_return; | |
| 2367 | 2040 const Extbyte **directories = |
| 2041 (const Extbyte **) XGetFontPath (dpy, &ndirs_return); | |
| 428 | 2042 Lisp_Object font_path = Qnil; |
| 2043 | |
| 2044 if (!directories) | |
| 563 | 2045 gui_error ("Can't get X font path", device); |
| 428 | 2046 |
| 2047 while (ndirs_return--) | |
| 2048 font_path = Fcons (build_ext_string (directories[ndirs_return], | |
| 440 | 2049 Qfile_name), |
| 2050 font_path); | |
| 428 | 2051 |
| 2052 return font_path; | |
| 2053 } | |
| 2054 | |
| 2055 DEFUN ("x-set-font-path", Fx_set_font_path, 1, 2, 0, /* | |
| 2056 Set the X Server's font path to FONT-PATH. | |
| 2057 | |
| 2058 There is only one font path per server, not one per client. Use this | |
| 2059 sparingly. It uncaches all of the X server's font information. | |
| 2060 | |
| 2061 Font directories should end in the path separator and should contain | |
| 2062 a file called fonts.dir usually created with the program mkfontdir. | |
| 2063 | |
| 2064 Setting the FONT-PATH to nil tells the X server to use the default | |
| 2065 font path. | |
| 2066 | |
| 2067 See also `x-get-font-path'. | |
| 2068 */ | |
| 2069 (font_path, device)) | |
| 2070 { | |
| 2071 Display *dpy = get_x_display (device); | |
| 2367 | 2072 Extbyte **directories; |
| 428 | 2073 int i=0,ndirs=0; |
| 2074 | |
| 2367 | 2075 { |
| 2076 EXTERNAL_LIST_LOOP_2 (path_entry, font_path) | |
| 2077 { | |
| 2078 CHECK_STRING (path_entry); | |
| 2079 ndirs++; | |
| 2080 } | |
| 2081 } | |
| 428 | 2082 |
| 2367 | 2083 directories = alloca_array (Extbyte *, ndirs); |
| 428 | 2084 |
| 2367 | 2085 { |
| 2086 EXTERNAL_LIST_LOOP_2 (path_entry, font_path) | |
| 2087 { | |
| 2088 LISP_STRING_TO_EXTERNAL (path_entry, directories[i++], | |
| 2089 Qfile_name); | |
| 2090 } | |
| 2091 } | |
| 428 | 2092 |
| 2093 expect_x_error (dpy); | |
| 2367 | 2094 XSetFontPath (dpy, directories, ndirs); |
| 428 | 2095 signal_if_x_error (dpy, 1/*resumable_p*/); |
| 2096 | |
| 2097 return Qnil; | |
| 2098 } | |
| 2099 | |
| 2100 | |
| 2101 /************************************************************************/ | |
| 2102 /* initialization */ | |
| 2103 /************************************************************************/ | |
| 2104 | |
| 2105 void | |
| 2106 syms_of_device_x (void) | |
| 2107 { | |
| 3092 | 2108 #ifdef NEW_GC |
| 2109 INIT_LRECORD_IMPLEMENTATION (x_device); | |
| 2110 #endif /* NEW_GC */ | |
| 2111 | |
| 428 | 2112 DEFSUBR (Fx_debug_mode); |
| 2113 DEFSUBR (Fx_get_resource); | |
| 2114 DEFSUBR (Fx_get_resource_prefix); | |
| 2115 DEFSUBR (Fx_put_resource); | |
| 2116 | |
| 2117 DEFSUBR (Fdefault_x_device); | |
| 2118 DEFSUBR (Fx_display_visual_class); | |
| 2119 DEFSUBR (Fx_display_visual_depth); | |
| 2120 DEFSUBR (Fx_server_vendor); | |
| 2121 DEFSUBR (Fx_server_version); | |
| 2122 DEFSUBR (Fx_valid_keysym_name_p); | |
| 2123 DEFSUBR (Fx_keysym_hash_table); | |
| 2124 DEFSUBR (Fx_keysym_on_keyboard_p); | |
| 2125 DEFSUBR (Fx_keysym_on_keyboard_sans_modifiers_p); | |
| 2126 | |
| 2127 DEFSUBR (Fx_grab_pointer); | |
| 2128 DEFSUBR (Fx_ungrab_pointer); | |
| 2129 DEFSUBR (Fx_grab_keyboard); | |
| 2130 DEFSUBR (Fx_ungrab_keyboard); | |
| 2131 | |
| 2132 DEFSUBR (Fx_get_font_path); | |
| 2133 DEFSUBR (Fx_set_font_path); | |
| 2134 | |
| 563 | 2135 DEFSYMBOL (Qx_error); |
| 2136 DEFSYMBOL (Qinit_pre_x_win); | |
| 2137 DEFSYMBOL (Qinit_post_x_win); | |
| 771 | 2138 |
| 2139 #ifdef MULE | |
| 2140 DEFSYMBOL (Qget_coding_system_from_locale); | |
| 2141 #endif | |
| 428 | 2142 } |
| 2143 | |
| 2144 void | |
| 2145 reinit_console_type_create_device_x (void) | |
| 2146 { | |
| 2147 /* Initialize variables to speed up X resource interactions */ | |
| 2367 | 2148 const Ascbyte *valid_resource_chars = |
| 428 | 2149 "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-_"; |
| 2150 while (*valid_resource_chars) | |
| 2151 valid_resource_char_p[(unsigned int) (*valid_resource_chars++)] = 1; | |
| 2152 | |
| 771 | 2153 name_Extbyte_dynarr = Dynarr_new (Extbyte); |
| 2154 class_Extbyte_dynarr = Dynarr_new (Extbyte); | |
| 428 | 2155 } |
| 2156 | |
| 2157 void | |
| 2158 console_type_create_device_x (void) | |
| 2159 { | |
| 2160 reinit_console_type_create_device_x (); | |
| 2161 CONSOLE_HAS_METHOD (x, init_device); | |
| 2162 CONSOLE_HAS_METHOD (x, finish_init_device); | |
| 2163 CONSOLE_HAS_METHOD (x, mark_device); | |
| 2164 CONSOLE_HAS_METHOD (x, delete_device); | |
| 2165 CONSOLE_HAS_METHOD (x, device_system_metrics); | |
| 2166 } | |
| 2167 | |
| 2168 void | |
| 2169 reinit_vars_of_device_x (void) | |
| 2170 { | |
| 2171 error_expected = 0; | |
| 2172 error_occurred = 0; | |
| 2173 | |
| 2174 in_resource_setting = 0; | |
| 2175 } | |
| 2176 | |
| 2177 void | |
| 2178 vars_of_device_x (void) | |
| 2179 { | |
| 2180 DEFVAR_LISP ("x-emacs-application-class", &Vx_emacs_application_class /* | |
| 2181 The X application class of the XEmacs process. | |
| 2182 This controls, among other things, the name of the `app-defaults' file | |
| 2183 that XEmacs will use. For changes to this variable to take effect, they | |
| 2184 must be made before the connection to the X server is initialized, that is, | |
| 2185 this variable may only be changed before emacs is dumped, or by setting it | |
| 2186 in the file lisp/term/x-win.el. | |
| 2187 | |
| 2681 | 2188 If this variable is nil on startup, the application uses `XEmacs'. Versions |
| 2189 previous to 21.5.21 examined the resource database and used `XEmacs' if any | |
| 2190 resources beginning with that string existed, and `Emacs' otherwise, for | |
| 2828 | 2191 greater backward compatibility. However, this has always tended to conflict |
| 2681 | 2192 with GNU Emacs, so this behavior is deprecated--in the short term, you can |
| 2193 restore it in a post-21.5.21 XEmacs by setting the | |
| 2194 USE_EMACS_AS_DEFAULT_APPLICATION_CLASS environment variable to some value, | |
| 2195 but in the medium and long term, you should migrate your X resources. | |
| 428 | 2196 */ ); |
| 2197 Vx_emacs_application_class = Qnil; | |
| 2198 | |
| 2199 DEFVAR_LISP ("x-initial-argv-list", &Vx_initial_argv_list /* | |
| 2200 You don't want to know. | |
| 2201 This is used during startup to communicate the remaining arguments in | |
| 2202 `command-line-args-left' to the C code, which passes the args to | |
| 2203 the X initialization code, which removes some args, and then the | |
| 2204 args are placed back into `x-initial-arg-list' and thence into | |
| 2205 `command-line-args-left'. Perhaps `command-line-args-left' should | |
| 2206 just reside in C. | |
| 2207 */ ); | |
| 2208 Vx_initial_argv_list = Qnil; | |
| 2209 | |
| 771 | 2210 #ifdef MULE |
| 428 | 2211 DEFVAR_LISP ("x-app-defaults-directory", &Vx_app_defaults_directory /* |
| 2212 Used by the Lisp code to communicate to the low level X initialization | |
| 2213 where the localized init files are. | |
| 2214 */ ); | |
| 2215 Vx_app_defaults_directory = Qnil; | |
| 2216 #endif | |
| 2217 | |
| 2218 Fprovide (Qx); | |
| 2219 } |