428
+ − 1 /* The event_stream interface for X11 with Xt, and/or tty frames.
+ − 2 Copyright (C) 1991-5, 1997 Free Software Foundation, Inc.
+ − 3 Copyright (C) 1995 Sun Microsystems, Inc.
+ − 4 Copyright (C) 1996 Ben Wing.
+ − 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
+ − 25 #include <config.h>
+ − 26 #include "lisp.h"
+ − 27
+ − 28 #include "console-x.h"
+ − 29 #include "../lwlib/lwlib.h"
+ − 30 #include "EmacsFrame.h"
+ − 31
+ − 32 #include "blocktype.h"
+ − 33 #include "buffer.h"
+ − 34 #include "console.h"
+ − 35 #include "console-tty.h"
+ − 36 #include "events.h"
+ − 37 #include "frame.h"
+ − 38 #include "objects-x.h"
+ − 39 #include "process.h"
+ − 40 #include "redisplay.h"
+ − 41 #include "elhash.h"
+ − 42
+ − 43 #include "systime.h"
+ − 44 #include "sysproc.h" /* for MAXDESC */
+ − 45
+ − 46 #include "xintrinsicp.h" /* CoreP.h needs this */
+ − 47 #include <X11/CoreP.h> /* Numerous places access the fields of
+ − 48 a core widget directly. We could
+ − 49 use XtGetValues(), but ... */
+ − 50 #include <X11/ShellP.h>
+ − 51
+ − 52 #ifdef HAVE_XIM
+ − 53 #ifdef XIM_MOTIF
+ − 54 #include <Xm/Xm.h>
+ − 55 #endif
+ − 56 #include "lstream.h"
+ − 57 #include "file-coding.h"
+ − 58 #endif
+ − 59
+ − 60 #ifdef HAVE_DRAGNDROP
+ − 61 #include "dragdrop.h"
+ − 62 #endif
+ − 63
+ − 64 #if defined (HAVE_OFFIX_DND)
+ − 65 #include "offix.h"
+ − 66 #endif
+ − 67
+ − 68 static void handle_focus_event_1 (struct frame *f, int in_p);
+ − 69
+ − 70 static struct event_stream *Xt_event_stream;
+ − 71
+ − 72 /* With the new event model, all events go through XtDispatchEvent()
+ − 73 and are picked up by an event handler that is added to each frame
+ − 74 widget. (This is how it's supposed to be.) In the old method,
+ − 75 Emacs sucks out events directly from XtNextEvent() and only
+ − 76 dispatches the events that it doesn't need to deal with. This
+ − 77 old way has lots of corresponding junk that is no longer
+ − 78 necessary: lwlib extensions, synthetic XAnyEvents, unnecessary
+ − 79 magic events, etc. */
+ − 80
+ − 81 /* The one and only one application context that Emacs uses. */
+ − 82 XtAppContext Xt_app_con;
+ − 83
+ − 84 /* Do we accept events sent by other clients? */
+ − 85 int x_allow_sendevents;
+ − 86
+ − 87 #ifdef DEBUG_XEMACS
458
+ − 88 Fixnum debug_x_events;
428
+ − 89 #endif
+ − 90
+ − 91 static int process_events_occurred;
+ − 92 static int tty_events_occurred;
450
+ − 93 static Widget widget_with_focus;
428
+ − 94
+ − 95 /* Mask of bits indicating the descriptors that we wait for input on */
+ − 96 extern SELECT_TYPE input_wait_mask, process_only_mask, tty_only_mask;
+ − 97
442
+ − 98 static const String x_fallback_resources[] =
428
+ − 99 {
+ − 100 /* This file is automatically generated from the app-defaults file
+ − 101 in ../etc/Emacs.ad. These resources are consulted only if no
+ − 102 app-defaults file is found at all.
+ − 103 */
+ − 104 #include <Emacs.ad.h>
+ − 105 0
+ − 106 };
+ − 107
+ − 108 static Lisp_Object x_keysym_to_emacs_keysym (KeySym keysym, int simple_p);
+ − 109 void emacs_Xt_mapping_action (Widget w, XEvent *event);
440
+ − 110 void debug_process_finalization (Lisp_Process *p);
428
+ − 111 void emacs_Xt_event_handler (Widget wid, XtPointer closure, XEvent *event,
+ − 112 Boolean *continue_to_dispatch);
+ − 113
+ − 114 static int last_quit_check_signal_tick_count;
+ − 115
+ − 116 Lisp_Object Qkey_mapping;
+ − 117 Lisp_Object Qsans_modifiers;
+ − 118
+ − 119
+ − 120 /************************************************************************/
+ − 121 /* keymap handling */
+ − 122 /************************************************************************/
+ − 123
+ − 124 /* X bogusly doesn't define the interpretations of any bits besides
+ − 125 ModControl, ModShift, and ModLock; so the Interclient Communication
+ − 126 Conventions Manual says that we have to bend over backwards to figure
+ − 127 out what the other modifier bits mean. According to ICCCM:
+ − 128
+ − 129 - Any keycode which is assigned ModControl is a "control" key.
+ − 130
+ − 131 - Any modifier bit which is assigned to a keycode which generates Meta_L
+ − 132 or Meta_R is the modifier bit meaning "meta". Likewise for Super, Hyper,
+ − 133 etc.
+ − 134
+ − 135 - Any keypress event which contains ModControl in its state should be
+ − 136 interpreted as a "control" character.
+ − 137
+ − 138 - Any keypress event which contains a modifier bit in its state which is
+ − 139 generated by a keycode whose corresponding keysym is Meta_L or Meta_R
+ − 140 should be interpreted as a "meta" character. Likewise for Super, Hyper,
+ − 141 etc.
+ − 142
+ − 143 - It is illegal for a keysym to be associated with more than one modifier
+ − 144 bit.
+ − 145
+ − 146 This means that the only thing that emacs can reasonably interpret as a
+ − 147 "meta" key is a key whose keysym is Meta_L or Meta_R, and which generates
+ − 148 one of the modifier bits Mod1-Mod5.
+ − 149
+ − 150 Unfortunately, many keyboards don't have Meta keys in their default
+ − 151 configuration. So, if there are no Meta keys, but there are "Alt" keys,
+ − 152 emacs will interpret Alt as Meta. If there are both Meta and Alt keys,
+ − 153 then the Meta keys mean "Meta", and the Alt keys mean "Alt" (it used to
+ − 154 mean "Symbol," but that just confused the hell out of way too many people).
+ − 155
+ − 156 This works with the default configurations of the 19 keyboard-types I've
+ − 157 checked.
+ − 158
+ − 159 Emacs detects keyboard configurations which violate the above rules, and
+ − 160 prints an error message on the standard-error-output. (Perhaps it should
+ − 161 use a pop-up-window instead.)
+ − 162 */
+ − 163
440
+ − 164 /* For every key on the keyboard that has a known character correspondence,
+ − 165 we define the ascii-character property of the keysym, and make the
+ − 166 default binding for the key be self-insert-command.
+ − 167
+ − 168 The following magic is basically intimate knowledge of X11/keysymdef.h.
+ − 169 The keysym mappings defined by X11 are based on the iso8859 standards,
+ − 170 except for Cyrillic and Greek.
+ − 171
+ − 172 In a non-Mule world, a user can still have a multi-lingual editor, by doing
+ − 173 (set-face-font "...-iso8859-2" (current-buffer))
+ − 174 for all their Latin-2 buffers, etc. */
+ − 175
+ − 176 static Lisp_Object
+ − 177 x_keysym_to_character (KeySym keysym)
+ − 178 {
+ − 179 #ifdef MULE
+ − 180 Lisp_Object charset = Qzero;
+ − 181 #define USE_CHARSET(var,cs) \
+ − 182 ((var) = CHARSET_BY_LEADING_BYTE (LEADING_BYTE_##cs))
+ − 183 #else
+ − 184 #define USE_CHARSET(var,lb)
+ − 185 #endif /* MULE */
+ − 186 int code = 0;
+ − 187
+ − 188 if ((keysym & 0xff) < 0xa0)
+ − 189 return Qnil;
+ − 190
+ − 191 switch (keysym >> 8)
+ − 192 {
+ − 193 case 0: /* ASCII + Latin1 */
+ − 194 USE_CHARSET (charset, LATIN_ISO8859_1);
+ − 195 code = keysym & 0x7f;
+ − 196 break;
+ − 197 case 1: /* Latin2 */
+ − 198 USE_CHARSET (charset, LATIN_ISO8859_2);
+ − 199 code = keysym & 0x7f;
+ − 200 break;
+ − 201 case 2: /* Latin3 */
+ − 202 USE_CHARSET (charset, LATIN_ISO8859_3);
+ − 203 code = keysym & 0x7f;
+ − 204 break;
+ − 205 case 3: /* Latin4 */
+ − 206 USE_CHARSET (charset, LATIN_ISO8859_4);
+ − 207 code = keysym & 0x7f;
+ − 208 break;
+ − 209 case 4: /* Katakana */
+ − 210 USE_CHARSET (charset, KATAKANA_JISX0201);
+ − 211 if ((keysym & 0xff) > 0xa0)
+ − 212 code = keysym & 0x7f;
+ − 213 break;
+ − 214 case 5: /* Arabic */
+ − 215 USE_CHARSET (charset, ARABIC_ISO8859_6);
+ − 216 code = keysym & 0x7f;
+ − 217 break;
+ − 218 case 6: /* Cyrillic */
+ − 219 {
+ − 220 static unsigned char const cyrillic[] = /* 0x20 - 0x7f */
+ − 221 {0x00, 0x72, 0x73, 0x71, 0x74, 0x75, 0x76, 0x77,
+ − 222 0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x00, 0x7e, 0x7f,
+ − 223 0x70, 0x22, 0x23, 0x21, 0x24, 0x25, 0x26, 0x27,
+ − 224 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x00, 0x2e, 0x2f,
+ − 225 0x6e, 0x50, 0x51, 0x66, 0x54, 0x55, 0x64, 0x53,
+ − 226 0x65, 0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e,
+ − 227 0x5f, 0x6f, 0x60, 0x61, 0x62, 0x63, 0x56, 0x52,
+ − 228 0x6c, 0x6b, 0x57, 0x68, 0x6d, 0x69, 0x67, 0x6a,
+ − 229 0x4e, 0x30, 0x31, 0x46, 0x34, 0x35, 0x44, 0x33,
+ − 230 0x45, 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e,
+ − 231 0x3f, 0x4f, 0x40, 0x41, 0x42, 0x43, 0x36, 0x32,
+ − 232 0x4c, 0x4b, 0x37, 0x48, 0x4d, 0x49, 0x47, 0x4a};
+ − 233 USE_CHARSET (charset, CYRILLIC_ISO8859_5);
+ − 234 code = cyrillic[(keysym & 0x7f) - 0x20];
+ − 235 break;
+ − 236 }
+ − 237 case 7: /* Greek */
+ − 238 {
+ − 239 static unsigned char const greek[] = /* 0x20 - 0x7f */
+ − 240 {0x00, 0x36, 0x38, 0x39, 0x3a, 0x5a, 0x00, 0x3c,
+ − 241 0x3e, 0x5b, 0x00, 0x3f, 0x00, 0x00, 0x35, 0x2f,
+ − 242 0x00, 0x5c, 0x5d, 0x5e, 0x5f, 0x7a, 0x40, 0x7c,
+ − 243 0x7d, 0x7b, 0x60, 0x7e, 0x00, 0x00, 0x00, 0x00,
+ − 244 0x00, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47,
+ − 245 0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f,
+ − 246 0x50, 0x51, 0x53, 0x00, 0x54, 0x55, 0x56, 0x57,
+ − 247 0x58, 0x59, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ − 248 0x00, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67,
+ − 249 0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f,
+ − 250 0x70, 0x71, 0x73, 0x72, 0x74, 0x75, 0x76, 0x77,
+ − 251 0x78, 0x79, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
+ − 252 USE_CHARSET (charset, GREEK_ISO8859_7);
+ − 253 code = greek[(keysym & 0x7f) - 0x20];
+ − 254 break;
+ − 255 }
+ − 256 case 8: /* Technical */
+ − 257 break;
+ − 258 case 9: /* Special */
+ − 259 break;
+ − 260 case 10: /* Publishing */
+ − 261 break;
+ − 262 case 11: /* APL */
+ − 263 break;
+ − 264 case 12: /* Hebrew */
+ − 265 USE_CHARSET (charset, HEBREW_ISO8859_8);
+ − 266 code = keysym & 0x7f;
+ − 267 break;
+ − 268 case 13: /* Thai */
+ − 269 /* #### This needs to deal with character composition. */
+ − 270 USE_CHARSET (charset, THAI_TIS620);
+ − 271 code = keysym & 0x7f;
+ − 272 break;
+ − 273 case 14: /* Korean Hangul */
+ − 274 break;
+ − 275 case 19: /* Latin 9 - ISO8859-15 - unsupported charset. */
+ − 276 break;
+ − 277 case 32: /* Currency */
+ − 278 break;
+ − 279 default:
+ − 280 break;
+ − 281 }
+ − 282
+ − 283 if (code == 0)
+ − 284 return Qnil;
+ − 285
+ − 286 #ifdef MULE
+ − 287 return make_char (MAKE_CHAR (charset, code, 0));
+ − 288 #else
+ − 289 return make_char (code + 0x80);
+ − 290 #endif
+ − 291 }
+ − 292
+ − 293 /* #### The way that keysym correspondence to characters should work:
+ − 294 - a Lisp_Event should contain a keysym AND a character slot.
+ − 295 - keybindings are tried with the keysym. If no binding can be found,
+ − 296 and there is a corresponding character, call self-insert-command.
+ − 297
+ − 298 #### Nuke x-iso8859-1.el.
+ − 299 #### Nuke the Qascii_character property.
+ − 300 #### Nuke Vcharacter_set_property.
+ − 301 */
+ − 302 static void
+ − 303 maybe_define_x_key_as_self_inserting_character (KeySym keysym, Lisp_Object symbol)
+ − 304 {
+ − 305 Lisp_Object character = x_keysym_to_character (keysym);
+ − 306
+ − 307 if (CHARP (character))
+ − 308 {
+ − 309 extern Lisp_Object Vcurrent_global_map;
+ − 310 extern Lisp_Object Qascii_character;
+ − 311 Fput (symbol, Qascii_character, character);
+ − 312 if (NILP (Flookup_key (Vcurrent_global_map, symbol, Qnil)))
+ − 313 Fdefine_key (Vcurrent_global_map, symbol, Qself_insert_command);
+ − 314 }
+ − 315 }
+ − 316
+ − 317 static void
+ − 318 x_has_keysym (KeySym keysym, Lisp_Object hash_table, int with_modifiers)
+ − 319 {
+ − 320 KeySym upper_lower[2];
+ − 321 int j;
+ − 322
+ − 323 if (keysym < 0x80) /* Optimize for ASCII keysyms */
+ − 324 return;
442
+ − 325
+ − 326 /* If you execute:
+ − 327 xmodmap -e 'keysym NN = scaron'
440
+ − 328 and then press (Shift scaron), X11 will return the different
442
+ − 329 keysym `Scaron', but `xmodmap -pke' might not even mention `Scaron'.
+ − 330 So we "register" both `scaron' and `Scaron'. */
+ − 331 #ifdef HAVE_XCONVERTCASE
440
+ − 332 XConvertCase (keysym, &upper_lower[0], &upper_lower[1]);
442
+ − 333 #else
+ − 334 upper_lower[0] = upper_lower[1] = keysym;
+ − 335 #endif
440
+ − 336
+ − 337 for (j = 0; j < (upper_lower[0] == upper_lower[1] ? 1 : 2); j++)
+ − 338 {
+ − 339 char *name;
+ − 340 keysym = upper_lower[j];
+ − 341
+ − 342 name = XKeysymToString (keysym);
+ − 343 if (name)
+ − 344 {
+ − 345 /* X guarantees NAME to be in the Host Portable Character Encoding */
+ − 346 Lisp_Object sym = x_keysym_to_emacs_keysym (keysym, 0);
+ − 347 Lisp_Object new_value = with_modifiers ? Qt : Qsans_modifiers;
+ − 348 Lisp_Object old_value = Fgethash (sym, hash_table, Qnil);
+ − 349
+ − 350 if (! EQ (old_value, new_value)
+ − 351 && ! (EQ (old_value, Qsans_modifiers) &&
+ − 352 EQ (new_value, Qt)))
+ − 353 {
+ − 354 maybe_define_x_key_as_self_inserting_character (keysym, sym);
+ − 355 Fputhash (build_ext_string (name, Qbinary), new_value, hash_table);
+ − 356 Fputhash (sym, new_value, hash_table);
+ − 357 }
+ − 358 }
+ − 359 }
+ − 360 }
+ − 361
428
+ − 362 static void
+ − 363 x_reset_key_mapping (struct device *d)
+ − 364 {
+ − 365 Display *display = DEVICE_X_DISPLAY (d);
+ − 366 struct x_device *xd = DEVICE_X_DATA (d);
+ − 367 KeySym *keysym, *keysym_end;
+ − 368 Lisp_Object hash_table;
+ − 369 int key_code_count, keysyms_per_code;
+ − 370
+ − 371 if (xd->x_keysym_map)
+ − 372 XFree ((char *) xd->x_keysym_map);
+ − 373 XDisplayKeycodes (display,
+ − 374 &xd->x_keysym_map_min_code,
+ − 375 &xd->x_keysym_map_max_code);
+ − 376 key_code_count = xd->x_keysym_map_max_code - xd->x_keysym_map_min_code + 1;
+ − 377 xd->x_keysym_map =
+ − 378 XGetKeyboardMapping (display, xd->x_keysym_map_min_code, key_code_count,
+ − 379 &xd->x_keysym_map_keysyms_per_code);
+ − 380
+ − 381 hash_table = xd->x_keysym_map_hash_table;
+ − 382 if (HASH_TABLEP (hash_table))
+ − 383 Fclrhash (hash_table);
+ − 384 else
+ − 385 xd->x_keysym_map_hash_table = hash_table =
+ − 386 make_lisp_hash_table (128, HASH_TABLE_NON_WEAK, HASH_TABLE_EQUAL);
+ − 387
+ − 388 for (keysym = xd->x_keysym_map,
+ − 389 keysyms_per_code = xd->x_keysym_map_keysyms_per_code,
+ − 390 keysym_end = keysym + (key_code_count * keysyms_per_code);
+ − 391 keysym < keysym_end;
+ − 392 keysym += keysyms_per_code)
+ − 393 {
+ − 394 int j;
+ − 395
+ − 396 if (keysym[0] == NoSymbol)
+ − 397 continue;
+ − 398
440
+ − 399 x_has_keysym (keysym[0], hash_table, 0);
428
+ − 400
+ − 401 for (j = 1; j < keysyms_per_code; j++)
+ − 402 {
+ − 403 if (keysym[j] != keysym[0] &&
+ − 404 keysym[j] != NoSymbol)
440
+ − 405 x_has_keysym (keysym[j], hash_table, 1);
428
+ − 406 }
+ − 407 }
+ − 408 }
+ − 409
442
+ − 410 static const char *
428
+ − 411 index_to_name (int indice)
+ − 412 {
+ − 413 switch (indice)
+ − 414 {
+ − 415 case ShiftMapIndex: return "ModShift";
+ − 416 case LockMapIndex: return "ModLock";
+ − 417 case ControlMapIndex: return "ModControl";
+ − 418 case Mod1MapIndex: return "Mod1";
+ − 419 case Mod2MapIndex: return "Mod2";
+ − 420 case Mod3MapIndex: return "Mod3";
+ − 421 case Mod4MapIndex: return "Mod4";
+ − 422 case Mod5MapIndex: return "Mod5";
+ − 423 default: return "???";
+ − 424 }
+ − 425 }
+ − 426
+ − 427 /* Boy, I really wish C had local functions... */
+ − 428 struct c_doesnt_have_closures /* #### not yet used */
+ − 429 {
+ − 430 int warned_about_overlapping_modifiers;
+ − 431 int warned_about_predefined_modifiers;
+ − 432 int warned_about_duplicate_modifiers;
+ − 433 int meta_bit;
+ − 434 int hyper_bit;
+ − 435 int super_bit;
+ − 436 int alt_bit;
+ − 437 int mode_bit;
+ − 438 };
+ − 439
+ − 440 static void
+ − 441 x_reset_modifier_mapping (struct device *d)
+ − 442 {
+ − 443 Display *display = DEVICE_X_DISPLAY (d);
+ − 444 struct x_device *xd = DEVICE_X_DATA (d);
+ − 445 int modifier_index, modifier_key, column, mkpm;
+ − 446 int warned_about_overlapping_modifiers = 0;
+ − 447 int warned_about_predefined_modifiers = 0;
+ − 448 int warned_about_duplicate_modifiers = 0;
+ − 449 int meta_bit = 0;
+ − 450 int hyper_bit = 0;
+ − 451 int super_bit = 0;
+ − 452 int alt_bit = 0;
+ − 453 int mode_bit = 0;
+ − 454
+ − 455 xd->lock_interpretation = 0;
+ − 456
+ − 457 if (xd->x_modifier_keymap)
+ − 458 XFreeModifiermap (xd->x_modifier_keymap);
+ − 459
+ − 460 x_reset_key_mapping (d);
+ − 461
+ − 462 xd->x_modifier_keymap = XGetModifierMapping (display);
+ − 463
+ − 464 /* Boy, I really wish C had local functions...
+ − 465 */
+ − 466
+ − 467 /* The call to warn_when_safe must be on the same line as the string or
+ − 468 make-msgfile won't pick it up properly (the newline doesn't confuse
+ − 469 it, but the backslash does). */
+ − 470
+ − 471 #define modwarn(name,old,other) \
+ − 472 warn_when_safe (Qkey_mapping, Qwarning, "XEmacs: %s (0x%x) generates %s, which is generated by %s.", \
+ − 473 name, code, index_to_name (old), other), \
+ − 474 warned_about_overlapping_modifiers = 1
+ − 475
+ − 476 #define modbarf(name,other) \
+ − 477 warn_when_safe (Qkey_mapping, Qwarning, "XEmacs: %s (0x%x) generates %s, which is nonsensical.", \
+ − 478 name, code, other), \
+ − 479 warned_about_predefined_modifiers = 1
+ − 480
+ − 481 #define check_modifier(name,mask) \
+ − 482 if ((1<<modifier_index) != mask) \
+ − 483 warn_when_safe (Qkey_mapping, Qwarning, "XEmacs: %s (0x%x) generates %s, which is nonsensical.", \
+ − 484 name, code, index_to_name (modifier_index)), \
+ − 485 warned_about_predefined_modifiers = 1
+ − 486
+ − 487 #define store_modifier(name,old) \
+ − 488 if (old && old != modifier_index) \
+ − 489 warn_when_safe (Qkey_mapping, Qwarning, "XEmacs: %s (0x%x) generates both %s and %s, which is nonsensical.",\
+ − 490 name, code, index_to_name (old), \
+ − 491 index_to_name (modifier_index)), \
+ − 492 warned_about_duplicate_modifiers = 1; \
+ − 493 if (modifier_index == ShiftMapIndex) modbarf (name,"ModShift"); \
+ − 494 else if (modifier_index == LockMapIndex) modbarf (name,"ModLock"); \
+ − 495 else if (modifier_index == ControlMapIndex) modbarf (name,"ModControl"); \
+ − 496 else if (sym == XK_Mode_switch) \
+ − 497 mode_bit = modifier_index; /* Mode_switch is special, see below... */ \
+ − 498 else if (modifier_index == meta_bit && old != meta_bit) \
+ − 499 modwarn (name, meta_bit, "Meta"); \
+ − 500 else if (modifier_index == super_bit && old != super_bit) \
+ − 501 modwarn (name, super_bit, "Super"); \
+ − 502 else if (modifier_index == hyper_bit && old != hyper_bit) \
+ − 503 modwarn (name, hyper_bit, "Hyper"); \
+ − 504 else if (modifier_index == alt_bit && old != alt_bit) \
+ − 505 modwarn (name, alt_bit, "Alt"); \
+ − 506 else \
+ − 507 old = modifier_index;
+ − 508
+ − 509 mkpm = xd->x_modifier_keymap->max_keypermod;
+ − 510 for (modifier_index = 0; modifier_index < 8; modifier_index++)
+ − 511 for (modifier_key = 0; modifier_key < mkpm; modifier_key++) {
+ − 512 KeySym last_sym = 0;
+ − 513 for (column = 0; column < 4; column += 2) {
+ − 514 KeyCode code = xd->x_modifier_keymap->modifiermap[modifier_index * mkpm
+ − 515 + modifier_key];
+ − 516 KeySym sym = (code ? XKeycodeToKeysym (display, code, column) : 0);
+ − 517 if (sym == last_sym) continue;
+ − 518 last_sym = sym;
+ − 519 switch (sym) {
+ − 520 case XK_Mode_switch:store_modifier ("Mode_switch", mode_bit); break;
+ − 521 case XK_Meta_L: store_modifier ("Meta_L", meta_bit); break;
+ − 522 case XK_Meta_R: store_modifier ("Meta_R", meta_bit); break;
+ − 523 case XK_Super_L: store_modifier ("Super_L", super_bit); break;
+ − 524 case XK_Super_R: store_modifier ("Super_R", super_bit); break;
+ − 525 case XK_Hyper_L: store_modifier ("Hyper_L", hyper_bit); break;
+ − 526 case XK_Hyper_R: store_modifier ("Hyper_R", hyper_bit); break;
+ − 527 case XK_Alt_L: store_modifier ("Alt_L", alt_bit); break;
+ − 528 case XK_Alt_R: store_modifier ("Alt_R", alt_bit); break;
+ − 529 case XK_Control_L: check_modifier ("Control_L", ControlMask); break;
+ − 530 case XK_Control_R: check_modifier ("Control_R", ControlMask); break;
+ − 531 case XK_Shift_L: check_modifier ("Shift_L", ShiftMask); break;
+ − 532 case XK_Shift_R: check_modifier ("Shift_R", ShiftMask); break;
+ − 533 case XK_Shift_Lock: check_modifier ("Shift_Lock", LockMask);
+ − 534 xd->lock_interpretation = XK_Shift_Lock; break;
+ − 535 case XK_Caps_Lock: check_modifier ("Caps_Lock", LockMask);
+ − 536 xd->lock_interpretation = XK_Caps_Lock; break;
+ − 537
+ − 538 /* It probably doesn't make any sense for a modifier bit to be
+ − 539 assigned to a key that is not one of the above, but OpenWindows
+ − 540 assigns modifier bits to a couple of random function keys for
+ − 541 no reason that I can discern, so printing a warning here would
+ − 542 be annoying. */
+ − 543 }
+ − 544 }
+ − 545 }
+ − 546 #undef store_modifier
+ − 547 #undef check_modifier
+ − 548 #undef modwarn
+ − 549 #undef modbarf
+ − 550
+ − 551 /* If there was no Meta key, then try using the Alt key instead.
+ − 552 If there is both a Meta key and an Alt key, then the Alt key
+ − 553 is not disturbed and remains an Alt key. */
+ − 554 if (! meta_bit && alt_bit)
+ − 555 meta_bit = alt_bit, alt_bit = 0;
+ − 556
+ − 557 /* mode_bit overrides everything, since it's processed down inside of
+ − 558 XLookupString() instead of by us. If Meta and Mode_switch both
+ − 559 generate the same modifier bit (which is an error), then we don't
+ − 560 interpret that bit as Meta, because we can't make XLookupString()
+ − 561 not interpret it as Mode_switch; and interpreting it as both would
+ − 562 be totally wrong. */
+ − 563 if (mode_bit)
+ − 564 {
442
+ − 565 const char *warn = 0;
428
+ − 566 if (mode_bit == meta_bit) warn = "Meta", meta_bit = 0;
+ − 567 else if (mode_bit == hyper_bit) warn = "Hyper", hyper_bit = 0;
+ − 568 else if (mode_bit == super_bit) warn = "Super", super_bit = 0;
+ − 569 else if (mode_bit == alt_bit) warn = "Alt", alt_bit = 0;
+ − 570 if (warn)
+ − 571 {
+ − 572 warn_when_safe
+ − 573 (Qkey_mapping, Qwarning,
+ − 574 "XEmacs: %s is being used for both Mode_switch and %s.",
+ − 575 index_to_name (mode_bit), warn),
+ − 576 warned_about_overlapping_modifiers = 1;
+ − 577 }
+ − 578 }
+ − 579 #undef index_to_name
+ − 580
+ − 581 xd->MetaMask = (meta_bit ? (1 << meta_bit) : 0);
+ − 582 xd->HyperMask = (hyper_bit ? (1 << hyper_bit) : 0);
+ − 583 xd->SuperMask = (super_bit ? (1 << super_bit) : 0);
+ − 584 xd->AltMask = (alt_bit ? (1 << alt_bit) : 0);
+ − 585 xd->ModeMask = (mode_bit ? (1 << mode_bit) : 0); /* unused */
+ − 586
+ − 587
+ − 588 if (warned_about_overlapping_modifiers)
+ − 589 warn_when_safe (Qkey_mapping, Qwarning, "\n"
+ − 590 " Two distinct modifier keys (such as Meta and Hyper) cannot generate\n"
+ − 591 " the same modifier bit, because Emacs won't be able to tell which\n"
+ − 592 " modifier was actually held down when some other key is pressed. It\n"
+ − 593 " won't be able to tell Meta-x and Hyper-x apart, for example. Change\n"
+ − 594 " one of these keys to use some other modifier bit. If you intend for\n"
+ − 595 " these keys to have the same behavior, then change them to have the\n"
+ − 596 " same keysym as well as the same modifier bit.");
+ − 597
+ − 598 if (warned_about_predefined_modifiers)
+ − 599 warn_when_safe (Qkey_mapping, Qwarning, "\n"
+ − 600 " The semantics of the modifier bits ModShift, ModLock, and ModControl\n"
+ − 601 " are predefined. It does not make sense to assign ModControl to any\n"
+ − 602 " keysym other than Control_L or Control_R, or to assign any modifier\n"
+ − 603 " bits to the \"control\" keysyms other than ModControl. You can't\n"
+ − 604 " turn a \"control\" key into a \"meta\" key (or vice versa) by simply\n"
+ − 605 " assigning the key a different modifier bit. You must also make that\n"
+ − 606 " key generate an appropriate keysym (Control_L, Meta_L, etc).");
+ − 607
+ − 608 /* No need to say anything more for warned_about_duplicate_modifiers. */
+ − 609
+ − 610 if (warned_about_overlapping_modifiers || warned_about_predefined_modifiers)
+ − 611 warn_when_safe (Qkey_mapping, Qwarning, "\n"
+ − 612 " The meanings of the modifier bits Mod1 through Mod5 are determined\n"
+ − 613 " by the keysyms used to control those bits. Mod1 does NOT always\n"
+ − 614 " mean Meta, although some non-ICCCM-compliant programs assume that.");
+ − 615 }
+ − 616
+ − 617 void
+ − 618 x_init_modifier_mapping (struct device *d)
+ − 619 {
+ − 620 struct x_device *xd = DEVICE_X_DATA (d);
+ − 621 xd->x_keysym_map_hash_table = Qnil;
+ − 622 xd->x_keysym_map = NULL;
+ − 623 xd->x_modifier_keymap = NULL;
+ − 624 x_reset_modifier_mapping (d);
+ − 625 }
+ − 626
+ − 627 static int
+ − 628 x_key_is_modifier_p (KeyCode keycode, struct device *d)
+ − 629 {
+ − 630 struct x_device *xd = DEVICE_X_DATA (d);
+ − 631 KeySym *syms;
+ − 632 int i;
+ − 633
+ − 634 if (keycode < xd->x_keysym_map_min_code ||
+ − 635 keycode > xd->x_keysym_map_max_code)
+ − 636 return 0;
+ − 637
+ − 638 syms = &xd->x_keysym_map [(keycode - xd->x_keysym_map_min_code) *
+ − 639 xd->x_keysym_map_keysyms_per_code];
+ − 640 for (i = 0; i < xd->x_keysym_map_keysyms_per_code; i++)
+ − 641 if (IsModifierKey (syms [i]) ||
+ − 642 syms [i] == XK_Mode_switch) /* why doesn't IsModifierKey count this? */
+ − 643 return 1;
+ − 644 return 0;
+ − 645 }
+ − 646
+ − 647 /* key-handling code is always ugly. It just ends up working out
+ − 648 that way.
+ − 649
+ − 650 Here are some pointers:
+ − 651
+ − 652 -- DOWN_MASK indicates which modifiers should be treated as "down"
+ − 653 when the corresponding upstroke happens. It gets reset for
+ − 654 a particular modifier when that modifier goes up, and reset
+ − 655 for all modifiers when a non-modifier key is pressed. Example:
+ − 656
+ − 657 I press Control-A-Shift and then release Control-A-Shift.
+ − 658 I want the Shift key to be sticky but not the Control key.
+ − 659
+ − 660 -- LAST_DOWNKEY and RELEASE_TIME are used to keep track of
+ − 661 auto-repeat -- see below.
+ − 662
+ − 663 -- If a modifier key is sticky, I can unstick it by pressing
+ − 664 the modifier key again. */
+ − 665
+ − 666 static void
+ − 667 x_handle_sticky_modifiers (XEvent *ev, struct device *d)
+ − 668 {
+ − 669 struct x_device *xd;
+ − 670 KeyCode keycode;
+ − 671 int type;
+ − 672
+ − 673 if (!modifier_keys_are_sticky) /* Optimize for non-sticky modifiers */
+ − 674 return;
+ − 675
+ − 676 xd = DEVICE_X_DATA (d);
+ − 677 keycode = ev->xkey.keycode;
+ − 678 type = ev->type;
+ − 679
+ − 680 if (keycode < xd->x_keysym_map_min_code ||
+ − 681 keycode > xd->x_keysym_map_max_code)
+ − 682 return;
+ − 683
+ − 684 if (! ((type == KeyPress || type == KeyRelease) &&
+ − 685 x_key_is_modifier_p (keycode, d)))
+ − 686 { /* Not a modifier key */
+ − 687 Bool key_event_p = (type == KeyPress || type == KeyRelease);
+ − 688
444
+ − 689 if (type == ButtonPress
+ − 690 || (type == KeyPress
+ − 691 && ((xd->last_downkey
+ − 692 && ((keycode != xd->last_downkey
+ − 693 || ev->xkey.time != xd->release_time)))
+ − 694 || (INTP (Vmodifier_keys_sticky_time)
+ − 695 && ev->xkey.time
+ − 696 > (xd->modifier_release_time
+ − 697 + XINT (Vmodifier_keys_sticky_time))))))
428
+ − 698 {
+ − 699 xd->need_to_add_mask = 0;
+ − 700 xd->last_downkey = 0;
+ − 701 }
444
+ − 702 else if (type == KeyPress && !xd->last_downkey)
+ − 703 xd->last_downkey = keycode;
+ − 704
428
+ − 705 if (type == KeyPress)
+ − 706 xd->release_time = 0;
+ − 707 if (type == KeyPress || type == ButtonPress)
444
+ − 708 {
+ − 709 xd->down_mask = 0;
+ − 710 xd->modifier_release_time = 0;
+ − 711 }
428
+ − 712
+ − 713 if (key_event_p)
+ − 714 ev->xkey.state |= xd->need_to_add_mask;
+ − 715 else
+ − 716 ev->xbutton.state |= xd->need_to_add_mask;
+ − 717
+ − 718 if (type == KeyRelease && keycode == xd->last_downkey)
+ − 719 /* If I hold press-and-release the Control key and then press
+ − 720 and hold down the right arrow, I want it to auto-repeat
+ − 721 Control-Right. On the other hand, if I do the same but
+ − 722 manually press the Right arrow a bunch of times, I want
+ − 723 to see one Control-Right and then a bunch of Rights.
+ − 724 This means that we need to distinguish between an
+ − 725 auto-repeated key and a key pressed and released a bunch
+ − 726 of times.
+ − 727
+ − 728 Naturally, the designers of the X spec didn't see fit
+ − 729 to provide an obvious way to distinguish these cases.
+ − 730 So we assume that if the release and the next press
+ − 731 occur at the same time, the key was actually auto-
+ − 732 repeated. Under Open-Windows, at least, this works. */
444
+ − 733 xd->modifier_release_time = xd->release_time
+ − 734 = key_event_p ? ev->xkey.time : ev->xbutton.time;
428
+ − 735 }
+ − 736 else /* Modifier key pressed */
+ − 737 {
+ − 738 int i;
+ − 739 KeySym *syms = &xd->x_keysym_map [(keycode - xd->x_keysym_map_min_code) *
+ − 740 xd->x_keysym_map_keysyms_per_code];
+ − 741
+ − 742 /* If a non-modifier key was pressed in the middle of a bunch
+ − 743 of modifiers, then it unsticks all the modifiers that were
+ − 744 previously pressed. We cannot unstick the modifiers until
+ − 745 now because we want to check for auto-repeat of the
+ − 746 non-modifier key. */
+ − 747
+ − 748 if (xd->last_downkey)
+ − 749 {
+ − 750 xd->last_downkey = 0;
+ − 751 xd->need_to_add_mask = 0;
+ − 752 }
+ − 753
444
+ − 754 if (xd->modifier_release_time
+ − 755 && INTP (Vmodifier_keys_sticky_time)
+ − 756 && (ev->xkey.time
+ − 757 > xd->modifier_release_time + XINT (Vmodifier_keys_sticky_time)))
+ − 758 {
+ − 759 xd->need_to_add_mask = 0;
+ − 760 xd->down_mask = 0;
+ − 761 }
+ − 762
428
+ − 763 #define FROB(mask) \
+ − 764 do { \
+ − 765 if (type == KeyPress) \
+ − 766 { \
+ − 767 /* If modifier key is already sticky, \
+ − 768 then unstick it. Note that we do \
+ − 769 not test down_mask to deal with the \
+ − 770 unlikely but possible case that the \
+ − 771 modifier key auto-repeats. */ \
+ − 772 if (xd->need_to_add_mask & mask) \
+ − 773 { \
+ − 774 xd->need_to_add_mask &= ~mask; \
+ − 775 xd->down_mask &= ~mask; \
+ − 776 } \
+ − 777 else \
+ − 778 xd->down_mask |= mask; \
+ − 779 } \
+ − 780 else \
+ − 781 { \
+ − 782 if (xd->down_mask & mask) \
+ − 783 { \
+ − 784 xd->down_mask &= ~mask; \
+ − 785 xd->need_to_add_mask |= mask; \
+ − 786 } \
+ − 787 } \
444
+ − 788 xd->modifier_release_time = ev->xkey.time; \
428
+ − 789 } while (0)
+ − 790
+ − 791 for (i = 0; i < xd->x_keysym_map_keysyms_per_code; i++)
+ − 792 switch (syms[i])
+ − 793 {
+ − 794 case XK_Control_L: case XK_Control_R: FROB (ControlMask); break;
+ − 795 case XK_Shift_L: case XK_Shift_R: FROB (ShiftMask); break;
+ − 796 case XK_Meta_L: case XK_Meta_R: FROB (xd->MetaMask); break;
+ − 797 case XK_Super_L: case XK_Super_R: FROB (xd->SuperMask); break;
+ − 798 case XK_Hyper_L: case XK_Hyper_R: FROB (xd->HyperMask); break;
+ − 799 case XK_Alt_L: case XK_Alt_R: FROB (xd->AltMask); break;
+ − 800 }
+ − 801 }
+ − 802 #undef FROB
+ − 803 }
+ − 804
+ − 805 static void
+ − 806 clear_sticky_modifiers (struct device *d)
+ − 807 {
+ − 808 struct x_device *xd = DEVICE_X_DATA (d);
+ − 809
+ − 810 xd->need_to_add_mask = 0;
+ − 811 xd->last_downkey = 0;
+ − 812 xd->release_time = 0;
+ − 813 xd->down_mask = 0;
+ − 814 }
+ − 815
+ − 816 static int
+ − 817 keysym_obeys_caps_lock_p (KeySym sym, struct device *d)
+ − 818 {
+ − 819 struct x_device *xd = DEVICE_X_DATA (d);
+ − 820 /* Eeeeevil hack. Don't apply Caps_Lock to things that aren't alphabetic
+ − 821 characters, where "alphabetic" means something more than simply A-Z.
+ − 822 That is, if Caps_Lock is down, typing ESC doesn't produce Shift-ESC.
+ − 823 But if shift-lock is down, then it does. */
+ − 824 if (xd->lock_interpretation == XK_Shift_Lock)
+ − 825 return 1;
+ − 826
+ − 827 return
+ − 828 ((sym >= XK_A) && (sym <= XK_Z)) ||
+ − 829 ((sym >= XK_a) && (sym <= XK_z)) ||
+ − 830 ((sym >= XK_Agrave) && (sym <= XK_Odiaeresis)) ||
+ − 831 ((sym >= XK_agrave) && (sym <= XK_odiaeresis)) ||
+ − 832 ((sym >= XK_Ooblique) && (sym <= XK_Thorn)) ||
+ − 833 ((sym >= XK_oslash) && (sym <= XK_thorn));
+ − 834 }
+ − 835
+ − 836 /* called from EmacsFrame.c (actually from Xt itself) when a
+ − 837 MappingNotify event is received. In its infinite wisdom, Xt
+ − 838 decided that Xt event handlers never get MappingNotify events.
+ − 839 O'Reilly Xt Programming Manual 9.1.2 says:
+ − 840
+ − 841 MappingNotify is automatically handled by Xt, so it isn't passed
+ − 842 to event handlers and you don't need to worry about it.
+ − 843
+ − 844 Of course, we DO worry about it, so we need a special translation. */
+ − 845 void
+ − 846 emacs_Xt_mapping_action (Widget w, XEvent* event)
+ − 847 {
+ − 848 struct device *d = get_device_from_display (event->xany.display);
+ − 849
+ − 850 if (DEVICE_X_BEING_DELETED (d))
+ − 851 return;
+ − 852 #if 0
+ − 853 /* nyet. Now this is handled by Xt. */
+ − 854 XRefreshKeyboardMapping (&event->xmapping);
+ − 855 #endif
+ − 856 /* xmodmap generates about a billion MappingKeyboard events, followed
+ − 857 by a single MappingModifier event, so it might be worthwhile to
+ − 858 take extra MappingKeyboard events out of the queue before requesting
+ − 859 the current keymap from the server. */
+ − 860 switch (event->xmapping.request)
+ − 861 {
+ − 862 case MappingKeyboard: x_reset_key_mapping (d); break;
+ − 863 case MappingModifier: x_reset_modifier_mapping (d); break;
+ − 864 case MappingPointer: /* Do something here? */ break;
+ − 865 default: abort();
+ − 866 }
+ − 867 }
+ − 868
+ − 869
+ − 870 /************************************************************************/
+ − 871 /* X to Emacs event conversion */
+ − 872 /************************************************************************/
+ − 873
+ − 874 static Lisp_Object
+ − 875 x_keysym_to_emacs_keysym (KeySym keysym, int simple_p)
+ − 876 {
+ − 877 char *name;
+ − 878 if (keysym >= XK_exclam && keysym <= XK_asciitilde)
+ − 879 /* We must assume that the X keysym numbers for the ASCII graphic
+ − 880 characters are the same as their ASCII codes. */
+ − 881 return make_char (keysym);
+ − 882
+ − 883 switch (keysym)
+ − 884 {
+ − 885 /* These would be handled correctly by the default case, but by
+ − 886 special-casing them here we don't garbage a string or call
+ − 887 intern(). */
+ − 888 case XK_BackSpace: return QKbackspace;
+ − 889 case XK_Tab: return QKtab;
+ − 890 case XK_Linefeed: return QKlinefeed;
+ − 891 case XK_Return: return QKreturn;
+ − 892 case XK_Escape: return QKescape;
+ − 893 case XK_space: return QKspace;
+ − 894 case XK_Delete: return QKdelete;
+ − 895 case 0: return Qnil;
+ − 896 default:
+ − 897 if (simple_p) return Qnil;
+ − 898 /* !!#### not Mule-ized */
+ − 899 name = XKeysymToString (keysym);
+ − 900 if (!name || !name[0])
+ − 901 /* This happens if there is a mismatch between the Xlib of
+ − 902 XEmacs and the Xlib of the X server...
+ − 903
+ − 904 Let's hard-code in some knowledge of common keysyms introduced
+ − 905 in recent X11 releases. Snarfed from X11/keysymdef.h
+ − 906
+ − 907 Probably we should add some stuff here for X11R6. */
+ − 908 switch (keysym)
+ − 909 {
+ − 910 case 0xFF95: return KEYSYM ("kp-home");
+ − 911 case 0xFF96: return KEYSYM ("kp-left");
+ − 912 case 0xFF97: return KEYSYM ("kp-up");
+ − 913 case 0xFF98: return KEYSYM ("kp-right");
+ − 914 case 0xFF99: return KEYSYM ("kp-down");
+ − 915 case 0xFF9A: return KEYSYM ("kp-prior");
+ − 916 case 0xFF9B: return KEYSYM ("kp-next");
+ − 917 case 0xFF9C: return KEYSYM ("kp-end");
+ − 918 case 0xFF9D: return KEYSYM ("kp-begin");
+ − 919 case 0xFF9E: return KEYSYM ("kp-insert");
+ − 920 case 0xFF9F: return KEYSYM ("kp-delete");
+ − 921
+ − 922 case 0x1005FF10: return KEYSYM ("SunF36"); /* labeled F11 */
+ − 923 case 0x1005FF11: return KEYSYM ("SunF37"); /* labeled F12 */
+ − 924 default:
+ − 925 {
+ − 926 char buf [64];
+ − 927 sprintf (buf, "unknown-keysym-0x%X", (int) keysym);
+ − 928 return KEYSYM (buf);
+ − 929 }
+ − 930 }
+ − 931 /* If it's got a one-character name, that's good enough. */
+ − 932 if (!name[1])
+ − 933 return make_char (name[0]);
+ − 934
+ − 935 /* If it's in the "Keyboard" character set, downcase it.
+ − 936 The case of those keysyms is too totally random for us to
+ − 937 force anyone to remember them.
+ − 938 The case of the other character sets is significant, however.
+ − 939 */
+ − 940 if ((((unsigned int) keysym) & (~0x1FF)) == ((unsigned int) 0xFE00))
+ − 941 {
+ − 942 char buf [255];
+ − 943 char *s1, *s2;
+ − 944 for (s1 = name, s2 = buf; *s1; s1++, s2++) {
+ − 945 if (*s1 == '_') {
+ − 946 *s2 = '-';
+ − 947 } else {
+ − 948 *s2 = tolower (* (unsigned char *) s1);
+ − 949 }
+ − 950 }
+ − 951 *s2 = 0;
+ − 952 return KEYSYM (buf);
+ − 953 }
+ − 954 return KEYSYM (name);
+ − 955 }
+ − 956 }
+ − 957
+ − 958 static Lisp_Object
+ − 959 x_to_emacs_keysym (XKeyPressedEvent *event, int simple_p)
+ − 960 /* simple_p means don't try too hard (ASCII only) */
+ − 961 {
+ − 962 KeySym keysym = 0;
+ − 963
+ − 964 #ifdef HAVE_XIM
+ − 965 int len;
442
+ − 966 /* Some implementations of XmbLookupString don't return
+ − 967 XBufferOverflow correctly, so increase the size of the xim input
+ − 968 buffer from 64 to the more reasonable size 513, as Emacs has done.
+ − 969 From Kenichi Handa. */
+ − 970 char buffer[513];
428
+ − 971 char *bufptr = buffer;
+ − 972 int bufsiz = sizeof (buffer);
+ − 973 Status status;
+ − 974 #ifdef XIM_XLIB
+ − 975 XIC xic = FRAME_X_XIC (x_any_window_to_frame
+ − 976 (get_device_from_display (event->display),
+ − 977 event->window));
+ − 978 #endif /* XIM_XLIB */
+ − 979 #endif /* HAVE_XIM */
+ − 980
+ − 981 /* We use XLookupString if we're not using XIM, or are using
+ − 982 XIM_XLIB but input context creation failed. */
+ − 983 #if ! (defined (HAVE_XIM) && defined (XIM_MOTIF))
+ − 984 #if defined (HAVE_XIM) && defined (XIM_XLIB)
+ − 985 if (!xic)
+ − 986 #endif /* XIM_XLIB */
+ − 987 {
+ − 988 /* Apparently it's necessary to specify a dummy here (rather
+ − 989 than passing in 0) to avoid crashes on German IRIX */
+ − 990 char dummy[256];
+ − 991 XLookupString (event, dummy, 200, &keysym, 0);
+ − 992 return (IsModifierKey (keysym) || keysym == XK_Mode_switch )
+ − 993 ? Qnil : x_keysym_to_emacs_keysym (keysym, simple_p);
+ − 994 }
+ − 995 #endif /* ! XIM_MOTIF */
+ − 996
+ − 997 #ifdef HAVE_XIM
+ − 998 Lookup_String: /* Come-From XBufferOverflow */
+ − 999 #ifdef XIM_MOTIF
+ − 1000 len = XmImMbLookupString (XtWindowToWidget (event->display, event->window),
+ − 1001 event, bufptr, bufsiz, &keysym, &status);
+ − 1002 #else /* XIM_XLIB */
+ − 1003 if (xic)
+ − 1004 len = XmbLookupString (xic, event, bufptr, bufsiz, &keysym, &status);
+ − 1005 #endif /* HAVE_XIM */
+ − 1006
+ − 1007 #ifdef DEBUG_XEMACS
442
+ − 1008 if (debug_x_events > 0)
428
+ − 1009 {
+ − 1010 stderr_out (" status=");
+ − 1011 #define print_status_when(S) if (status == S) stderr_out (#S)
+ − 1012 print_status_when (XLookupKeySym);
+ − 1013 print_status_when (XLookupBoth);
+ − 1014 print_status_when (XLookupChars);
+ − 1015 print_status_when (XLookupNone);
+ − 1016 print_status_when (XBufferOverflow);
+ − 1017
+ − 1018 if (status == XLookupKeySym || status == XLookupBoth)
+ − 1019 stderr_out (" keysym=%s", XKeysymToString (keysym));
+ − 1020 if (status == XLookupChars || status == XLookupBoth)
+ − 1021 {
+ − 1022 if (len != 1)
+ − 1023 {
+ − 1024 int j;
+ − 1025 stderr_out (" chars=\"");
+ − 1026 for (j=0; j<len; j++)
+ − 1027 stderr_out ("%c", bufptr[j]);
+ − 1028 stderr_out ("\"");
+ − 1029 }
+ − 1030 else if (bufptr[0] <= 32 || bufptr[0] >= 127)
+ − 1031 stderr_out (" char=0x%x", bufptr[0]);
+ − 1032 else
+ − 1033 stderr_out (" char=%c", bufptr[0]);
+ − 1034 }
+ − 1035 stderr_out ("\n");
+ − 1036 }
+ − 1037 #endif /* DEBUG_XEMACS */
+ − 1038
+ − 1039 switch (status)
+ − 1040 {
+ − 1041 case XLookupKeySym:
+ − 1042 case XLookupBoth:
+ − 1043 return (IsModifierKey (keysym) || keysym == XK_Mode_switch )
+ − 1044 ? Qnil : x_keysym_to_emacs_keysym (keysym, simple_p);
+ − 1045
+ − 1046 case XLookupChars:
+ − 1047 {
+ − 1048 /* Generate multiple emacs events */
+ − 1049 struct device *d = get_device_from_display (event->display);
+ − 1050 Emchar ch;
+ − 1051 Lisp_Object instream, fb_instream;
+ − 1052 Lstream *istr;
+ − 1053 struct gcpro gcpro1, gcpro2;
+ − 1054
440
+ − 1055 fb_instream = make_fixed_buffer_input_stream (bufptr, len);
+ − 1056
+ − 1057 /* #### Use Fget_coding_system (Vcomposed_input_coding_system) */
428
+ − 1058 instream =
+ − 1059 make_decoding_input_stream (XLSTREAM (fb_instream),
+ − 1060 Fget_coding_system (Qundecided));
+ − 1061
+ − 1062 istr = XLSTREAM (instream);
+ − 1063
+ − 1064 GCPRO2 (instream, fb_instream);
+ − 1065 while ((ch = Lstream_get_emchar (istr)) != EOF)
+ − 1066 {
+ − 1067 Lisp_Object emacs_event = Fmake_event (Qnil, Qnil);
440
+ − 1068 Lisp_Event *ev = XEVENT (emacs_event);
428
+ − 1069 ev->channel = DEVICE_CONSOLE (d);
+ − 1070 ev->event_type = key_press_event;
+ − 1071 ev->timestamp = event->time;
+ − 1072 ev->event.key.modifiers = 0;
+ − 1073 ev->event.key.keysym = make_char (ch);
+ − 1074 enqueue_Xt_dispatch_event (emacs_event);
+ − 1075 }
+ − 1076 Lstream_close (istr);
+ − 1077 UNGCPRO;
+ − 1078 Lstream_delete (istr);
+ − 1079 Lstream_delete (XLSTREAM (fb_instream));
+ − 1080 return Qnil;
+ − 1081 }
+ − 1082 case XLookupNone: return Qnil;
+ − 1083 case XBufferOverflow:
+ − 1084 bufptr = (char *) alloca (len+1);
+ − 1085 bufsiz = len+1;
+ − 1086 goto Lookup_String;
+ − 1087 }
+ − 1088 return Qnil; /* not reached */
+ − 1089 #endif /* HAVE_XIM */
+ − 1090 }
+ − 1091
+ − 1092 static void
+ − 1093 set_last_server_timestamp (struct device *d, XEvent *x_event)
+ − 1094 {
+ − 1095 Time t;
+ − 1096 switch (x_event->type)
+ − 1097 {
+ − 1098 case KeyPress:
+ − 1099 case KeyRelease: t = x_event->xkey.time; break;
+ − 1100 case ButtonPress:
+ − 1101 case ButtonRelease: t = x_event->xbutton.time; break;
+ − 1102 case EnterNotify:
+ − 1103 case LeaveNotify: t = x_event->xcrossing.time; break;
+ − 1104 case MotionNotify: t = x_event->xmotion.time; break;
+ − 1105 case PropertyNotify: t = x_event->xproperty.time; break;
+ − 1106 case SelectionClear: t = x_event->xselectionclear.time; break;
+ − 1107 case SelectionRequest: t = x_event->xselectionrequest.time; break;
+ − 1108 case SelectionNotify: t = x_event->xselection.time; break;
+ − 1109 default: return;
+ − 1110 }
+ − 1111 DEVICE_X_LAST_SERVER_TIMESTAMP (d) = t;
+ − 1112 }
+ − 1113
+ − 1114 static int
440
+ − 1115 x_event_to_emacs_event (XEvent *x_event, Lisp_Event *emacs_event)
428
+ − 1116 {
+ − 1117 Display *display = x_event->xany.display;
+ − 1118 struct device *d = get_device_from_display (display);
+ − 1119 struct x_device *xd = DEVICE_X_DATA (d);
+ − 1120
+ − 1121 if (DEVICE_X_BEING_DELETED (d))
+ − 1122 /* #### Uh, is this 0 correct? */
+ − 1123 return 0;
+ − 1124
+ − 1125 set_last_server_timestamp (d, x_event);
+ − 1126
+ − 1127 switch (x_event->type)
+ − 1128 {
+ − 1129 case KeyRelease:
+ − 1130 x_handle_sticky_modifiers (x_event, d);
+ − 1131 return 0;
+ − 1132
+ − 1133 case KeyPress:
+ − 1134 case ButtonPress:
+ − 1135 case ButtonRelease:
+ − 1136 {
442
+ − 1137 int modifiers = 0;
428
+ − 1138 int shift_p, lock_p;
+ − 1139 Bool key_event_p = (x_event->type == KeyPress);
+ − 1140 unsigned int *state =
+ − 1141 key_event_p ? &x_event->xkey.state : &x_event->xbutton.state;
+ − 1142
+ − 1143 /* If this is a synthetic KeyPress or Button event, and the user
+ − 1144 has expressed a disinterest in this security hole, then drop
+ − 1145 it on the floor. */
+ − 1146 if ((key_event_p
+ − 1147 ? x_event->xkey.send_event
+ − 1148 : x_event->xbutton.send_event)
+ − 1149 #ifdef EXTERNAL_WIDGET
+ − 1150 /* ben: events get sent to an ExternalShell using XSendEvent.
+ − 1151 This is not a perfect solution. */
+ − 1152 && !FRAME_X_EXTERNAL_WINDOW_P
+ − 1153 (x_any_window_to_frame (d, x_event->xany.window))
+ − 1154 #endif
+ − 1155 && !x_allow_sendevents)
+ − 1156 return 0;
+ − 1157
+ − 1158 DEVICE_X_MOUSE_TIMESTAMP (d) =
+ − 1159 DEVICE_X_GLOBAL_MOUSE_TIMESTAMP (d) =
+ − 1160 key_event_p ? x_event->xkey.time : x_event->xbutton.time;
+ − 1161
+ − 1162 x_handle_sticky_modifiers (x_event, d);
+ − 1163
442
+ − 1164 if (*state & ControlMask) modifiers |= XEMACS_MOD_CONTROL;
+ − 1165 if (*state & xd->MetaMask) modifiers |= XEMACS_MOD_META;
+ − 1166 if (*state & xd->SuperMask) modifiers |= XEMACS_MOD_SUPER;
+ − 1167 if (*state & xd->HyperMask) modifiers |= XEMACS_MOD_HYPER;
+ − 1168 if (*state & xd->AltMask) modifiers |= XEMACS_MOD_ALT;
+ − 1169 {
+ − 1170 int numero_de_botao = -1;
+ − 1171
+ − 1172 if (!key_event_p)
+ − 1173 numero_de_botao = x_event->xbutton.button;
+ − 1174
+ − 1175 /* the button gets noted either in the button or the modifiers
+ − 1176 field, but not both. */
+ − 1177 if (numero_de_botao != 1 && (*state & Button1Mask))
+ − 1178 modifiers |= XEMACS_MOD_BUTTON1;
+ − 1179 if (numero_de_botao != 2 && (*state & Button2Mask))
+ − 1180 modifiers |= XEMACS_MOD_BUTTON2;
+ − 1181 if (numero_de_botao != 3 && (*state & Button3Mask))
+ − 1182 modifiers |= XEMACS_MOD_BUTTON3;
+ − 1183 if (numero_de_botao != 4 && (*state & Button4Mask))
+ − 1184 modifiers |= XEMACS_MOD_BUTTON4;
+ − 1185 if (numero_de_botao != 5 && (*state & Button5Mask))
+ − 1186 modifiers |= XEMACS_MOD_BUTTON5;
+ − 1187 }
428
+ − 1188
+ − 1189 /* Ignore the Caps_Lock key if:
+ − 1190 - any other modifiers are down, so that Caps_Lock doesn't
+ − 1191 turn C-x into C-X, which would suck.
+ − 1192 - the event was a mouse event. */
+ − 1193 if (modifiers || ! key_event_p)
+ − 1194 *state &= (~LockMask);
+ − 1195
+ − 1196 shift_p = *state & ShiftMask;
+ − 1197 lock_p = *state & LockMask;
+ − 1198
+ − 1199 if (shift_p || lock_p)
442
+ − 1200 modifiers |= XEMACS_MOD_SHIFT;
428
+ − 1201
+ − 1202 if (key_event_p)
+ − 1203 {
+ − 1204 Lisp_Object keysym;
+ − 1205 XKeyEvent *ev = &x_event->xkey;
+ − 1206 /* This used to compute the frame from the given X window and
+ − 1207 store it here, but we really don't care about the frame. */
+ − 1208 emacs_event->channel = DEVICE_CONSOLE (d);
+ − 1209 keysym = x_to_emacs_keysym (&x_event->xkey, 0);
+ − 1210
+ − 1211 /* If the emacs keysym is nil, then that means that the X
+ − 1212 keysym was either a Modifier or NoSymbol, which
+ − 1213 probably means that we're in the midst of reading a
+ − 1214 Multi_key sequence, or a "dead" key prefix, or XIM
+ − 1215 input. Ignore it. */
+ − 1216 if (NILP (keysym))
+ − 1217 return 0;
+ − 1218
+ − 1219 /* More Caps_Lock garbage: Caps_Lock should *only* add the
+ − 1220 shift modifier to two-case keys (that is, A-Z and
+ − 1221 related characters). So at this point (after looking up
+ − 1222 the keysym) if the keysym isn't a dual-case alphabetic,
+ − 1223 and if the caps lock key was down but the shift key
+ − 1224 wasn't, then turn off the shift modifier. Gag barf */
+ − 1225 /* #### type lossage: assuming equivalence of emacs and
+ − 1226 X keysyms */
+ − 1227 /* !!#### maybe fix for Mule */
+ − 1228 if (lock_p && !shift_p &&
+ − 1229 ! (CHAR_OR_CHAR_INTP (keysym)
+ − 1230 && keysym_obeys_caps_lock_p
+ − 1231 ((KeySym) XCHAR_OR_CHAR_INT (keysym), d)))
442
+ − 1232 modifiers &= (~XEMACS_MOD_SHIFT);
428
+ − 1233
+ − 1234 /* If this key contains two distinct keysyms, that is,
+ − 1235 "shift" generates a different keysym than the
+ − 1236 non-shifted key, then don't apply the shift modifier
+ − 1237 bit: it's implicit. Otherwise, if there would be no
+ − 1238 other way to tell the difference between the shifted
+ − 1239 and unshifted version of this key, apply the shift bit.
+ − 1240 Non-graphics, like Backspace and F1 get the shift bit
+ − 1241 in the modifiers slot. Neither the characters "a",
+ − 1242 "A", "2", nor "@" normally have the shift bit set.
+ − 1243 However, "F1" normally does. */
442
+ − 1244 if (modifiers & XEMACS_MOD_SHIFT)
428
+ − 1245 {
+ − 1246 int Mode_switch_p = *state & xd->ModeMask;
+ − 1247 KeySym bot = XLookupKeysym (ev, Mode_switch_p ? 2 : 0);
+ − 1248 KeySym top = XLookupKeysym (ev, Mode_switch_p ? 3 : 1);
+ − 1249 if (top && bot && top != bot)
442
+ − 1250 modifiers &= ~XEMACS_MOD_SHIFT;
428
+ − 1251 }
+ − 1252 emacs_event->event_type = key_press_event;
+ − 1253 emacs_event->timestamp = ev->time;
+ − 1254 emacs_event->event.key.modifiers = modifiers;
+ − 1255 emacs_event->event.key.keysym = keysym;
+ − 1256 }
+ − 1257 else /* Mouse press/release event */
+ − 1258 {
+ − 1259 XButtonEvent *ev = &x_event->xbutton;
+ − 1260 struct frame *frame = x_window_to_frame (d, ev->window);
+ − 1261
+ − 1262 if (! frame)
+ − 1263 return 0; /* not for us */
+ − 1264 XSETFRAME (emacs_event->channel, frame);
+ − 1265
+ − 1266 emacs_event->event_type = (x_event->type == ButtonPress) ?
+ − 1267 button_press_event : button_release_event;
+ − 1268
+ − 1269 emacs_event->event.button.modifiers = modifiers;
+ − 1270 emacs_event->timestamp = ev->time;
+ − 1271 emacs_event->event.button.button = ev->button;
+ − 1272 emacs_event->event.button.x = ev->x;
+ − 1273 emacs_event->event.button.y = ev->y;
+ − 1274 /* because we don't seem to get a FocusIn event for button clicks
+ − 1275 when a widget-glyph is selected we will assume that we want the
+ − 1276 focus if a button gets pressed. */
+ − 1277 if (x_event->type == ButtonPress)
+ − 1278 handle_focus_event_1 (frame, 1);
+ − 1279 }
+ − 1280 }
+ − 1281 break;
+ − 1282
+ − 1283 case MotionNotify:
+ − 1284 {
+ − 1285 XMotionEvent *ev = &x_event->xmotion;
+ − 1286 struct frame *frame = x_window_to_frame (d, ev->window);
442
+ − 1287 int modifiers = 0;
428
+ − 1288 XMotionEvent event2;
+ − 1289
+ − 1290 if (! frame)
+ − 1291 return 0; /* not for us */
+ − 1292
+ − 1293 /* We use MotionHintMask, so we will get only one motion event
+ − 1294 until the next time we call XQueryPointer or the user
+ − 1295 clicks the mouse. So call XQueryPointer now (meaning that
+ − 1296 the event will be in sync with the server just before
+ − 1297 Fnext_event() returns). If the mouse is still in motion,
+ − 1298 then the server will immediately generate exactly one more
+ − 1299 motion event, which will be on the queue waiting for us
+ − 1300 next time around. */
+ − 1301 event2 = *ev;
+ − 1302 if (XQueryPointer (event2.display, event2.window,
+ − 1303 &event2.root, &event2.subwindow,
+ − 1304 &event2.x_root, &event2.y_root,
+ − 1305 &event2.x, &event2.y,
+ − 1306 &event2.state))
+ − 1307 ev = &event2; /* only one structure copy */
+ − 1308
+ − 1309 DEVICE_X_MOUSE_TIMESTAMP (d) = ev->time;
+ − 1310
+ − 1311 XSETFRAME (emacs_event->channel, frame);
+ − 1312 emacs_event->event_type = pointer_motion_event;
+ − 1313 emacs_event->timestamp = ev->time;
+ − 1314 emacs_event->event.motion.x = ev->x;
+ − 1315 emacs_event->event.motion.y = ev->y;
442
+ − 1316 if (ev->state & ShiftMask) modifiers |= XEMACS_MOD_SHIFT;
+ − 1317 if (ev->state & ControlMask) modifiers |= XEMACS_MOD_CONTROL;
+ − 1318 if (ev->state & xd->MetaMask) modifiers |= XEMACS_MOD_META;
+ − 1319 if (ev->state & xd->SuperMask) modifiers |= XEMACS_MOD_SUPER;
+ − 1320 if (ev->state & xd->HyperMask) modifiers |= XEMACS_MOD_HYPER;
+ − 1321 if (ev->state & xd->AltMask) modifiers |= XEMACS_MOD_ALT;
+ − 1322 if (ev->state & Button1Mask) modifiers |= XEMACS_MOD_BUTTON1;
+ − 1323 if (ev->state & Button2Mask) modifiers |= XEMACS_MOD_BUTTON2;
+ − 1324 if (ev->state & Button3Mask) modifiers |= XEMACS_MOD_BUTTON3;
+ − 1325 if (ev->state & Button4Mask) modifiers |= XEMACS_MOD_BUTTON4;
+ − 1326 if (ev->state & Button5Mask) modifiers |= XEMACS_MOD_BUTTON5;
428
+ − 1327 /* Currently ignores Shift_Lock but probably shouldn't
+ − 1328 (but it definitely should ignore Caps_Lock). */
+ − 1329 emacs_event->event.motion.modifiers = modifiers;
+ − 1330 }
+ − 1331 break;
+ − 1332
+ − 1333 case ClientMessage:
+ − 1334 {
+ − 1335 /* Patch bogus TAKE_FOCUS messages from MWM; CurrentTime is
+ − 1336 passed as the timestamp of the TAKE_FOCUS, which the ICCCM
+ − 1337 explicitly prohibits. */
+ − 1338 XClientMessageEvent *ev = &x_event->xclient;
+ − 1339 #ifdef HAVE_OFFIX_DND
+ − 1340 if (DndIsDropMessage(x_event))
+ − 1341 {
442
+ − 1342 unsigned int state;
+ − 1343 int modifiers = 0;
+ − 1344 unsigned int button=0;
428
+ − 1345 struct frame *frame = x_any_window_to_frame (d, ev->window);
+ − 1346 Extbyte *data;
+ − 1347 unsigned long size, dtype;
+ − 1348 Lisp_Object l_type = Qnil, l_data = Qnil;
+ − 1349 Lisp_Object l_dndlist = Qnil, l_item = Qnil;
+ − 1350 struct gcpro gcpro1, gcpro2, gcpro3, gcpro4;
+ − 1351
+ − 1352 if (! frame)
+ − 1353 return 0; /* not for us */
446
+ − 1354
+ − 1355 GCPRO4 (l_type, l_data, l_dndlist, l_item);
428
+ − 1356 XSETFRAME (emacs_event->channel, frame);
+ − 1357
+ − 1358 emacs_event->event_type = misc_user_event;
+ − 1359 emacs_event->timestamp = DEVICE_X_LAST_SERVER_TIMESTAMP (d);
+ − 1360
+ − 1361 state=DndDragButtons(x_event);
+ − 1362
442
+ − 1363 if (state & ShiftMask) modifiers |= XEMACS_MOD_SHIFT;
+ − 1364 if (state & ControlMask) modifiers |= XEMACS_MOD_CONTROL;
+ − 1365 if (state & xd->MetaMask) modifiers |= XEMACS_MOD_META;
+ − 1366 if (state & xd->SuperMask) modifiers |= XEMACS_MOD_SUPER;
+ − 1367 if (state & xd->HyperMask) modifiers |= XEMACS_MOD_HYPER;
+ − 1368 if (state & xd->AltMask) modifiers |= XEMACS_MOD_ALT;
+ − 1369 if (state & Button1Mask) modifiers |= XEMACS_MOD_BUTTON1;
+ − 1370 if (state & Button2Mask) modifiers |= XEMACS_MOD_BUTTON2;
+ − 1371 if (state & Button3Mask) modifiers |= XEMACS_MOD_BUTTON3;
+ − 1372 if (state & Button4Mask) modifiers |= XEMACS_MOD_BUTTON4;
+ − 1373 if (state & Button5Mask) modifiers |= XEMACS_MOD_BUTTON5;
428
+ − 1374
+ − 1375 if (state & Button5Mask) button = Button5;
+ − 1376 if (state & Button4Mask) button = Button4;
+ − 1377 if (state & Button3Mask) button = Button3;
+ − 1378 if (state & Button2Mask) button = Button2;
+ − 1379 if (state & Button1Mask) button = Button1;
+ − 1380
+ − 1381 emacs_event->event.misc.modifiers = modifiers;
+ − 1382 emacs_event->event.misc.button = button;
+ − 1383
+ − 1384 DndDropCoordinates(FRAME_X_TEXT_WIDGET(frame), x_event,
+ − 1385 &(emacs_event->event.misc.x),
+ − 1386 &(emacs_event->event.misc.y) );
+ − 1387
+ − 1388 DndGetData(x_event,&data,&size);
+ − 1389
+ − 1390 dtype=DndDataType(x_event);
+ − 1391 switch (dtype)
+ − 1392 {
+ − 1393 case DndFiles: /* null terminated strings, end null */
+ − 1394 {
+ − 1395 int len;
+ − 1396 char *hurl = NULL;
+ − 1397
+ − 1398 while (*data)
+ − 1399 {
+ − 1400 len = strlen ((char*)data);
+ − 1401 hurl = dnd_url_hexify_string ((char *)data, "file:");
+ − 1402 l_item = make_string ((Bufbyte *)hurl, strlen (hurl));
+ − 1403 l_dndlist = Fcons (l_item, l_dndlist);
+ − 1404 data += len + 1;
+ − 1405 xfree (hurl);
+ − 1406 }
+ − 1407 l_type = Qdragdrop_URL;
+ − 1408 }
+ − 1409 break;
+ − 1410 case DndText:
+ − 1411 l_type = Qdragdrop_MIME;
+ − 1412 l_dndlist = list1 ( list3 ( list1 ( make_string ((Bufbyte *)"text/plain", 10) ),
+ − 1413 make_string ((Bufbyte *)"8bit", 4),
+ − 1414 make_ext_string ((Extbyte *)data,
+ − 1415 strlen((char *)data),
440
+ − 1416 Qctext) ) );
428
+ − 1417 break;
+ − 1418 case DndMIME:
+ − 1419 /* we have to parse this in some way to extract
+ − 1420 content-type and params (in the tm way) and
+ − 1421 content encoding.
+ − 1422 OR: if data is string, let tm do the job
+ − 1423 if data is list[2], give the first two
+ − 1424 to tm...
+ − 1425 */
+ − 1426 l_type = Qdragdrop_MIME;
+ − 1427 l_dndlist = list1 ( make_ext_string ((Extbyte *)data,
+ − 1428 strlen((char *)data),
440
+ − 1429 Qbinary) );
428
+ − 1430 break;
+ − 1431 case DndFile:
+ − 1432 case DndDir:
+ − 1433 case DndLink:
+ − 1434 case DndExe:
+ − 1435 {
+ − 1436 char *hurl = dnd_url_hexify_string ((char *) data, "file:");
+ − 1437
+ − 1438 l_dndlist = list1 ( make_string ((Bufbyte *)hurl,
+ − 1439 strlen (hurl)) );
+ − 1440 l_type = Qdragdrop_URL;
+ − 1441
+ − 1442 xfree (hurl);
+ − 1443 }
+ − 1444 break;
+ − 1445 case DndURL:
+ − 1446 /* as it is a real URL it should already be escaped
+ − 1447 and escaping again will break them (cause % is unsave) */
+ − 1448 l_dndlist = list1 ( make_ext_string ((Extbyte *)data,
+ − 1449 strlen ((char *)data),
440
+ − 1450 Qfile_name) );
428
+ − 1451 l_type = Qdragdrop_URL;
+ − 1452 break;
+ − 1453 default: /* Unknown, RawData and any other type */
+ − 1454 l_dndlist = list1 ( list3 ( list1 ( make_string ((Bufbyte *)"application/octet-stream", 24) ),
+ − 1455 make_string ((Bufbyte *)"8bit", 4),
+ − 1456 make_ext_string ((Extbyte *)data,
+ − 1457 size,
440
+ − 1458 Qbinary) ) );
428
+ − 1459 l_type = Qdragdrop_MIME;
+ − 1460 break;
+ − 1461 }
+ − 1462
+ − 1463 emacs_event->event.misc.function = Qdragdrop_drop_dispatch;
+ − 1464 emacs_event->event.misc.object = Fcons (l_type, l_dndlist);
+ − 1465
+ − 1466 UNGCPRO;
+ − 1467
+ − 1468 break;
+ − 1469 }
+ − 1470 #endif /* HAVE_OFFIX_DND */
+ − 1471 if (ev->message_type == DEVICE_XATOM_WM_PROTOCOLS (d)
+ − 1472 && (Atom) (ev->data.l[0]) == DEVICE_XATOM_WM_TAKE_FOCUS (d)
+ − 1473 && (Atom) (ev->data.l[1]) == 0)
+ − 1474 {
+ − 1475 ev->data.l[1] = DEVICE_X_LAST_SERVER_TIMESTAMP (d);
+ − 1476 }
+ − 1477 }
+ − 1478 /* fall through */
+ − 1479
+ − 1480 default: /* it's a magic event */
+ − 1481 {
+ − 1482 struct frame *frame;
+ − 1483 Window w;
+ − 1484 XEvent *x_event_copy = &emacs_event->event.magic.underlying_x_event;
+ − 1485
+ − 1486 #define FROB(event_member, window_member) \
+ − 1487 x_event_copy->event_member = x_event->event_member; \
+ − 1488 w = x_event->event_member.window_member
+ − 1489
+ − 1490 switch (x_event->type)
+ − 1491 {
+ − 1492 case SelectionRequest: FROB(xselectionrequest, owner); break;
+ − 1493 case SelectionClear: FROB(xselectionclear, window); break;
+ − 1494 case SelectionNotify: FROB(xselection, requestor); break;
+ − 1495 case PropertyNotify: FROB(xproperty, window); break;
+ − 1496 case ClientMessage: FROB(xclient, window); break;
+ − 1497 case ConfigureNotify: FROB(xconfigure, window); break;
+ − 1498 case Expose:
+ − 1499 case GraphicsExpose: FROB(xexpose, window); break;
+ − 1500 case MapNotify:
+ − 1501 case UnmapNotify: FROB(xmap, window); break;
+ − 1502 case EnterNotify:
+ − 1503 case LeaveNotify: FROB(xcrossing, window); break;
+ − 1504 case FocusIn:
+ − 1505 case FocusOut: FROB(xfocus, window); break;
+ − 1506 case VisibilityNotify: FROB(xvisibility, window); break;
442
+ − 1507 case CreateNotify: FROB(xcreatewindow, window); break;
428
+ − 1508 default:
+ − 1509 w = x_event->xany.window;
+ − 1510 *x_event_copy = *x_event;
+ − 1511 break;
+ − 1512 }
+ − 1513 #undef FROB
+ − 1514 frame = x_any_window_to_frame (d, w);
+ − 1515
+ − 1516 if (!frame)
+ − 1517 return 0;
+ − 1518
+ − 1519 emacs_event->event_type = magic_event;
+ − 1520 XSETFRAME (emacs_event->channel, frame);
+ − 1521
+ − 1522 break;
+ − 1523 }
+ − 1524 }
+ − 1525 return 1;
+ − 1526 }
+ − 1527
+ − 1528
+ − 1529
+ − 1530 /************************************************************************/
+ − 1531 /* magic-event handling */
+ − 1532 /************************************************************************/
+ − 1533
+ − 1534 static void
+ − 1535 handle_focus_event_1 (struct frame *f, int in_p)
+ − 1536 {
+ − 1537 #if XtSpecificationRelease > 5
450
+ − 1538 widget_with_focus = XtGetKeyboardFocusWidget (FRAME_X_TEXT_WIDGET (f));
428
+ − 1539 #endif
+ − 1540 #ifdef HAVE_XIM
+ − 1541 XIM_focus_event (f, in_p);
+ − 1542 #endif /* HAVE_XIM */
450
+ − 1543
428
+ − 1544 /* On focus change, clear all memory of sticky modifiers
+ − 1545 to avoid non-intuitive behavior. */
+ − 1546 clear_sticky_modifiers (XDEVICE (FRAME_DEVICE (f)));
+ − 1547
+ − 1548 /* We don't want to handle the focus change now, because we might
+ − 1549 be in an accept-process-output, sleep-for, or sit-for. So
+ − 1550 we enqueue it.
+ − 1551
+ − 1552 Actually, we half handle it: we handle it as far as changing the
+ − 1553 box cursor for redisplay, but we don't call any hooks or do any
+ − 1554 select-frame stuff until after the sit-for.
+ − 1555
+ − 1556 Unfortunately native widgets break the model because they grab
+ − 1557 the keyboard focus and nothing sets it back again. I cannot find
+ − 1558 any reasonable way to do this elsewhere so we assert here that
+ − 1559 the keyboard focus is on the emacs text widget. Menus and dialogs
+ − 1560 do this in their selection callback, but we don't want that since
+ − 1561 a button having focus is legitimate. An edit field having focus
+ − 1562 is mandatory. Weirdly you get a FocusOut event when you click in
442
+ − 1563 a widget-glyph but you don't get a corresponding FocusIn when you
428
+ − 1564 click in the frame. Why is this? */
438
+ − 1565 if (in_p
+ − 1566 #if XtSpecificationRelease > 5
450
+ − 1567 && FRAME_X_TEXT_WIDGET (f) != widget_with_focus
428
+ − 1568 #endif
+ − 1569 )
+ − 1570 {
+ − 1571 lw_set_keyboard_focus (FRAME_X_SHELL_WIDGET (f),
+ − 1572 FRAME_X_TEXT_WIDGET (f));
+ − 1573 }
450
+ − 1574
+ − 1575 /* We have the focus now. See comment in
+ − 1576 emacs_Xt_handle_widget_losing_focus (). */
+ − 1577 if (in_p)
+ − 1578 widget_with_focus = NULL;
+ − 1579
428
+ − 1580 /* do the generic event-stream stuff. */
+ − 1581 {
+ − 1582 Lisp_Object frm;
+ − 1583 Lisp_Object conser;
+ − 1584 struct gcpro gcpro1;
+ − 1585
+ − 1586 XSETFRAME (frm, f);
+ − 1587 conser = Fcons (frm, Fcons (FRAME_DEVICE (f), in_p ? Qt : Qnil));
+ − 1588 GCPRO1 (conser);
+ − 1589 emacs_handle_focus_change_preliminary (conser);
+ − 1590 enqueue_magic_eval_event (emacs_handle_focus_change_final,
+ − 1591 conser);
+ − 1592 UNGCPRO;
+ − 1593 }
+ − 1594 }
+ − 1595
450
+ − 1596 /* The idea here is that when a widget glyph gets unmapped we don't
+ − 1597 want the focus to stay with it if it has focus - because it may
+ − 1598 well just get deleted next andthen we have lost the focus until the
+ − 1599 user does something. So handle_focus_event_1 records the widget
+ − 1600 with keyboard focus when FocusOut is processed, and then, when a
+ − 1601 widget gets unmapped, it calls this function to restore focus if
+ − 1602 appropriate. */
+ − 1603 void emacs_Xt_handle_widget_losing_focus (struct frame* f, Widget losing_widget);
+ − 1604 void
+ − 1605 emacs_Xt_handle_widget_losing_focus (struct frame* f, Widget losing_widget)
+ − 1606 {
+ − 1607 if (losing_widget == widget_with_focus)
+ − 1608 {
+ − 1609 handle_focus_event_1 (f, 1);
+ − 1610 }
+ − 1611 }
+ − 1612
428
+ − 1613 /* This is called from the external-widget code */
+ − 1614
+ − 1615 void emacs_Xt_handle_focus_event (XEvent *event);
+ − 1616 void
+ − 1617 emacs_Xt_handle_focus_event (XEvent *event)
+ − 1618 {
+ − 1619 struct device *d = get_device_from_display (event->xany.display);
+ − 1620 struct frame *f;
+ − 1621
+ − 1622 if (DEVICE_X_BEING_DELETED (d))
+ − 1623 return;
+ − 1624
+ − 1625 /*
+ − 1626 * It's curious that we're using x_any_window_to_frame() instead
+ − 1627 * of x_window_to_frame(). I don't know what the impact of this is.
+ − 1628 */
+ − 1629 f = x_any_window_to_frame (d, event->xfocus.window);
+ − 1630 if (!f)
+ − 1631 /* focus events are sometimes generated just before
+ − 1632 a frame is destroyed. */
+ − 1633 return;
+ − 1634 handle_focus_event_1 (f, event->type == FocusIn);
+ − 1635 }
+ − 1636
+ − 1637 /* both MapNotify and VisibilityNotify can cause this
+ − 1638 JV is_visible has the same semantics as f->visible*/
+ − 1639 static void
+ − 1640 change_frame_visibility (struct frame *f, int is_visible)
+ − 1641 {
+ − 1642 Lisp_Object frame;
+ − 1643
+ − 1644 XSETFRAME (frame, f);
+ − 1645
+ − 1646 if (!FRAME_VISIBLE_P (f) && is_visible)
+ − 1647 {
+ − 1648 FRAME_VISIBLE_P (f) = is_visible;
+ − 1649 /* This improves the double flicker when uniconifying a frame
+ − 1650 some. A lot of it is not showing a buffer which has changed
+ − 1651 while the frame was iconified. To fix it further requires
+ − 1652 the good 'ol double redisplay structure. */
+ − 1653 MARK_FRAME_WINDOWS_STRUCTURE_CHANGED (f);
+ − 1654 va_run_hook_with_args (Qmap_frame_hook, 1, frame);
+ − 1655 }
+ − 1656 else if (FRAME_VISIBLE_P (f) && !is_visible)
+ − 1657 {
+ − 1658 FRAME_VISIBLE_P (f) = 0;
+ − 1659 va_run_hook_with_args (Qunmap_frame_hook, 1, frame);
+ − 1660 }
+ − 1661 else if (FRAME_VISIBLE_P (f) * is_visible < 0)
+ − 1662 {
+ − 1663 FRAME_VISIBLE_P(f) = - FRAME_VISIBLE_P(f);
+ − 1664 if (FRAME_REPAINT_P(f))
+ − 1665 MARK_FRAME_WINDOWS_STRUCTURE_CHANGED (f);
+ − 1666 va_run_hook_with_args (Qmap_frame_hook, 1, frame);
+ − 1667 }
+ − 1668 }
+ − 1669
+ − 1670 static void
+ − 1671 handle_map_event (struct frame *f, XEvent *event)
+ − 1672 {
+ − 1673 Lisp_Object frame;
+ − 1674
+ − 1675 XSETFRAME (frame, f);
+ − 1676 if (event->type == MapNotify)
+ − 1677 {
+ − 1678 XWindowAttributes xwa;
+ − 1679
+ − 1680 /* Bleagh!!!!!! Apparently some window managers (e.g. MWM)
+ − 1681 send synthetic MapNotify events when a window is first
+ − 1682 created, EVEN IF IT'S CREATED ICONIFIED OR INVISIBLE.
+ − 1683 Or something like that. We initially tried a different
+ − 1684 solution below, but that ran into a different window-
+ − 1685 manager bug.
+ − 1686
+ − 1687 It seems that the only reliable way is to treat a
+ − 1688 MapNotify event as a "hint" that the window might or
+ − 1689 might not be visible, and check explicitly. */
+ − 1690
+ − 1691 XGetWindowAttributes (event->xany.display, event->xmap.window,
+ − 1692 &xwa);
+ − 1693 if (xwa.map_state != IsViewable)
+ − 1694 {
+ − 1695 /* Calling Fframe_iconified_p is the only way we have to
+ − 1696 correctly update FRAME_ICONIFIED_P */
+ − 1697 Fframe_iconified_p (frame);
+ − 1698 return;
+ − 1699 }
+ − 1700
+ − 1701 FRAME_X_TOTALLY_VISIBLE_P (f) = 1;
+ − 1702 #if 0
+ − 1703 /* Bleagh again!!!! We initially tried the following hack
+ − 1704 around the MWM problem, but it turns out that TWM
+ − 1705 has a race condition when you un-iconify, where it maps
+ − 1706 the window and then tells the server that the window
+ − 1707 is un-iconified. Usually, XEmacs wakes up between
+ − 1708 those two occurrences, and thus thinks that un-iconified
+ − 1709 windows are still iconified.
+ − 1710
+ − 1711 Ah, the joys of X. */
+ − 1712
+ − 1713 /* By Emacs definition, a frame that is iconified is not
+ − 1714 visible. Marking a frame as visible will automatically cause
+ − 1715 frame-iconified-p to return nil, regardless of whether the
+ − 1716 frame is actually iconified. Therefore, we have to ignore
+ − 1717 MapNotify events on iconified frames. (It's not obvious
+ − 1718 to me why these are being sent, but it happens at startup
+ − 1719 with frames that are initially iconified; perhaps they are
+ − 1720 synthetic MapNotify events coming from the window manager.)
+ − 1721 Note that `frame-iconified-p' queries the server
+ − 1722 to determine whether the frame is currently iconified,
+ − 1723 rather than consulting some internal (and likely
+ − 1724 inaccurate) state flag. Therefore, ignoring the MapNotify
+ − 1725 is correct. */
+ − 1726 if (!FRAME_VISIBLE_P (f) && NILP (Fframe_iconified_p (frame)))
+ − 1727 #endif /* 0 */
+ − 1728 change_frame_visibility (f, 1);
+ − 1729 }
+ − 1730 else
+ − 1731 {
+ − 1732 FRAME_X_TOTALLY_VISIBLE_P (f) = 0;
+ − 1733 change_frame_visibility (f, 0);
+ − 1734 /* Calling Fframe_iconified_p is the only way we have to
+ − 1735 correctly update FRAME_ICONIFIED_P */
+ − 1736 Fframe_iconified_p (frame);
+ − 1737 }
+ − 1738 }
+ − 1739
+ − 1740 static void
+ − 1741 handle_client_message (struct frame *f, XEvent *event)
+ − 1742 {
+ − 1743 struct device *d = XDEVICE (FRAME_DEVICE (f));
+ − 1744 Lisp_Object frame;
+ − 1745
+ − 1746 XSETFRAME (frame, f);
+ − 1747
+ − 1748 if (event->xclient.message_type == DEVICE_XATOM_WM_PROTOCOLS (d) &&
+ − 1749 (Atom) (event->xclient.data.l[0]) == DEVICE_XATOM_WM_DELETE_WINDOW (d))
+ − 1750 {
+ − 1751 /* WM_DELETE_WINDOW is a misc-user event, but other ClientMessages,
+ − 1752 such as WM_TAKE_FOCUS, are eval events. That's because delete-window
+ − 1753 was probably executed with a mouse click, while the others could
+ − 1754 have been sent as a result of mouse motion or some other implicit
+ − 1755 action. (Call this a "heuristic"...) The reason for caring about
+ − 1756 this is so that clicking on the close-box will make emacs prompt
+ − 1757 using a dialog box instead of the minibuffer if there are unsaved
+ − 1758 buffers.
+ − 1759 */
+ − 1760 enqueue_misc_user_event (frame, Qeval,
+ − 1761 list3 (Qdelete_frame, frame, Qt));
+ − 1762 }
+ − 1763 else if (event->xclient.message_type == DEVICE_XATOM_WM_PROTOCOLS (d) &&
+ − 1764 (Atom) event->xclient.data.l[0] == DEVICE_XATOM_WM_TAKE_FOCUS (d))
+ − 1765 {
+ − 1766 handle_focus_event_1 (f, 1);
+ − 1767 #if 0
+ − 1768 /* If there is a dialog box up, focus on it.
+ − 1769
+ − 1770 #### Actually, we're raising it too, which is wrong. We should
+ − 1771 #### just focus on it, but lwlib doesn't currently give us an
+ − 1772 #### easy way to do that. This should be fixed.
+ − 1773 */
+ − 1774 unsigned long take_focus_timestamp = event->xclient.data.l[1];
+ − 1775 Widget widget = lw_raise_all_pop_up_widgets ();
+ − 1776 if (widget)
+ − 1777 {
+ − 1778 /* kludge: raise_all returns bottommost widget, but we really
+ − 1779 want the topmost. So just raise it for now. */
+ − 1780 XMapRaised (XtDisplay (widget), XtWindow (widget));
+ − 1781 /* Grab the focus with the timestamp of the TAKE_FOCUS. */
+ − 1782 XSetInputFocus (XtDisplay (widget), XtWindow (widget),
+ − 1783 RevertToParent, take_focus_timestamp);
+ − 1784 }
+ − 1785 #endif
+ − 1786 }
+ − 1787 }
+ − 1788
448
+ − 1789 /* #### I'm struggling to understand how the X event loop really works.
+ − 1790 Here is the problem:
+ − 1791
+ − 1792 When widgets get mapped / changed etc the actual display updates
+ − 1793 are done asynchronously via X events being processed - this
+ − 1794 normally happens when XtAppProcessEvent() gets called. However, if
+ − 1795 we are executing lisp code or even doing redisplay we won't
+ − 1796 necessarily process X events for a very long time. This has the
+ − 1797 effect of widgets only getting updated when XEmacs only goes into
+ − 1798 idle, or some other event causes processing of the X event queue.
+ − 1799
+ − 1800 XtAppProcessEvent can get called from the following places:
+ − 1801
+ − 1802 emacs_Xt_next_event () - this is normal event processing, almost
+ − 1803 any non-X event will take precedence and this means that we
+ − 1804 cannot rely on it to do the right thing at the right time for
+ − 1805 widget display.
+ − 1806
+ − 1807 drain_X_queue () - this happens when SIGIO gets tripped,
+ − 1808 processing the event queue allows C-g to be checked for. It gets
+ − 1809 called from emacs_Xt_event_pending_p ().
+ − 1810
+ − 1811 In order to solve this I have tried introducing a list primitive -
+ − 1812 dispatch-non-command-events - which forces processing of X events
+ − 1813 related to display. Unfortunately this has a number of problems,
+ − 1814 one is that it is possible for event_stream_event_pending_p to
+ − 1815 block for ever if there isn't actually an event. I guess this can
+ − 1816 happen if we drop the synthetic event for reason. It also relies on
+ − 1817 SIGIO processing which makes things rather fragile.
+ − 1818
+ − 1819 People have seen behaviour whereby XEmacs blocks until you move the
+ − 1820 mouse. This seems to indicate that dispatch-non-command-events is
+ − 1821 blocking. It may be that in a SIGIO world forcing SIGIO processing
+ − 1822 does the wrong thing.
+ − 1823 */
428
+ − 1824 static void
442
+ − 1825 emacs_Xt_force_event_pending (struct frame* f)
+ − 1826 {
+ − 1827 XEvent event;
+ − 1828
+ − 1829 Display* dpy = DEVICE_X_DISPLAY (XDEVICE (FRAME_DEVICE (f)));
+ − 1830 event.xclient.type = ClientMessage;
+ − 1831 event.xclient.display = dpy;
+ − 1832 event.xclient.message_type = XInternAtom (dpy, "BumpQueue", False);
+ − 1833 event.xclient.format = 32;
+ − 1834 event.xclient.window = 0;
+ − 1835
+ − 1836 /* Send the drop message */
+ − 1837 XSendEvent(dpy, XtWindow (FRAME_X_SHELL_WIDGET (f)),
+ − 1838 True, NoEventMask, &event);
448
+ − 1839 /* We rely on SIGIO and friends to realise we have generated an
+ − 1840 event. */
442
+ − 1841 }
+ − 1842
+ − 1843 static void
440
+ − 1844 emacs_Xt_handle_magic_event (Lisp_Event *emacs_event)
428
+ − 1845 {
+ − 1846 /* This function can GC */
+ − 1847 XEvent *event = &emacs_event->event.magic.underlying_x_event;
+ − 1848 struct frame *f = XFRAME (EVENT_CHANNEL (emacs_event));
+ − 1849
+ − 1850 if (!FRAME_LIVE_P (f) || DEVICE_X_BEING_DELETED (XDEVICE (FRAME_DEVICE (f))))
+ − 1851 return;
+ − 1852
+ − 1853 switch (event->type)
+ − 1854 {
+ − 1855 case SelectionRequest:
+ − 1856 x_handle_selection_request (&event->xselectionrequest);
+ − 1857 break;
+ − 1858
+ − 1859 case SelectionClear:
+ − 1860 x_handle_selection_clear (&event->xselectionclear);
+ − 1861 break;
+ − 1862
+ − 1863 case SelectionNotify:
+ − 1864 x_handle_selection_notify (&event->xselection);
+ − 1865 break;
+ − 1866
+ − 1867 case PropertyNotify:
+ − 1868 x_handle_property_notify (&event->xproperty);
+ − 1869 break;
+ − 1870
+ − 1871 case Expose:
+ − 1872 if (!check_for_ignored_expose (f, event->xexpose.x, event->xexpose.y,
+ − 1873 event->xexpose.width, event->xexpose.height)
+ − 1874 &&
+ − 1875 !find_matching_subwindow (f, event->xexpose.x, event->xexpose.y,
+ − 1876 event->xexpose.width, event->xexpose.height))
+ − 1877 x_redraw_exposed_area (f, event->xexpose.x, event->xexpose.y,
+ − 1878 event->xexpose.width, event->xexpose.height);
+ − 1879 break;
+ − 1880
+ − 1881 case GraphicsExpose: /* This occurs when an XCopyArea's source area was
+ − 1882 obscured or not available. */
+ − 1883 x_redraw_exposed_area (f, event->xexpose.x, event->xexpose.y,
+ − 1884 event->xexpose.width, event->xexpose.height);
+ − 1885 break;
+ − 1886
+ − 1887 case MapNotify:
+ − 1888 case UnmapNotify:
+ − 1889 handle_map_event (f, event);
+ − 1890 break;
+ − 1891
+ − 1892 case EnterNotify:
+ − 1893 if (event->xcrossing.detail != NotifyInferior)
+ − 1894 {
+ − 1895 Lisp_Object frame;
+ − 1896
+ − 1897 XSETFRAME (frame, f);
+ − 1898 /* FRAME_X_MOUSE_P (f) = 1; */
+ − 1899 va_run_hook_with_args (Qmouse_enter_frame_hook, 1, frame);
+ − 1900 }
+ − 1901 break;
+ − 1902
+ − 1903 case LeaveNotify:
+ − 1904 if (event->xcrossing.detail != NotifyInferior)
+ − 1905 {
+ − 1906 Lisp_Object frame;
+ − 1907
+ − 1908 XSETFRAME (frame, f);
+ − 1909 /* FRAME_X_MOUSE_P (f) = 0; */
+ − 1910 va_run_hook_with_args (Qmouse_leave_frame_hook, 1, frame);
+ − 1911 }
+ − 1912 break;
+ − 1913
+ − 1914 case FocusIn:
+ − 1915 case FocusOut:
+ − 1916
+ − 1917 #ifdef EXTERNAL_WIDGET
+ − 1918 /* External widget lossage: Ben said:
+ − 1919 YUCK. The only way to make focus changes work properly is to
+ − 1920 completely ignore all FocusIn/FocusOut events and depend only
+ − 1921 on notifications from the ExternalClient widget. */
+ − 1922 if (FRAME_X_EXTERNAL_WINDOW_P (f))
+ − 1923 break;
+ − 1924 #endif
+ − 1925 handle_focus_event_1 (f, event->type == FocusIn);
+ − 1926 break;
+ − 1927
+ − 1928 case ClientMessage:
+ − 1929 handle_client_message (f, event);
+ − 1930 break;
+ − 1931
+ − 1932 case VisibilityNotify: /* window visibility has changed */
+ − 1933 if (event->xvisibility.window == XtWindow (FRAME_X_SHELL_WIDGET (f)))
+ − 1934 {
+ − 1935 FRAME_X_TOTALLY_VISIBLE_P (f) =
+ − 1936 (event->xvisibility.state == VisibilityUnobscured);
+ − 1937 /* Note that the fvwm pager only sends VisibilityNotify when
+ − 1938 changing pages. Is this all we need to do ? JV */
+ − 1939 /* Nope. We must at least trigger a redisplay here.
+ − 1940 Since this case seems similar to MapNotify, I've
+ − 1941 factored out some code to change_frame_visibility().
+ − 1942 This triggers the necessary redisplay and runs
+ − 1943 (un)map-frame-hook. - dkindred@cs.cmu.edu */
+ − 1944 /* Changed it again to support the tristate visibility flag */
+ − 1945 change_frame_visibility (f, (event->xvisibility.state
+ − 1946 != VisibilityFullyObscured) ? 1 : -1);
+ − 1947 }
+ − 1948 break;
+ − 1949
+ − 1950 case ConfigureNotify:
+ − 1951 #ifdef HAVE_XIM
+ − 1952 XIM_SetGeometry (f);
+ − 1953 #endif
+ − 1954 break;
+ − 1955
442
+ − 1956 case CreateNotify:
+ − 1957 break;
+ − 1958
428
+ − 1959 default:
+ − 1960 break;
+ − 1961 }
+ − 1962 }
+ − 1963
+ − 1964
+ − 1965 /************************************************************************/
+ − 1966 /* timeout events */
+ − 1967 /************************************************************************/
+ − 1968
+ − 1969 static int timeout_id_tick;
+ − 1970
+ − 1971 /* Xt interval id's might not fit into an int (they're pointers, as it
+ − 1972 happens), so we need to provide a conversion list. */
+ − 1973
+ − 1974 static struct Xt_timeout
+ − 1975 {
+ − 1976 int id;
+ − 1977 XtIntervalId interval_id;
+ − 1978 struct Xt_timeout *next;
+ − 1979 } *pending_timeouts, *completed_timeouts;
+ − 1980
+ − 1981 static struct Xt_timeout_blocktype
+ − 1982 {
+ − 1983 Blocktype_declare (struct Xt_timeout);
+ − 1984 } *the_Xt_timeout_blocktype;
+ − 1985
+ − 1986 /* called by XtAppNextEvent() */
+ − 1987 static void
+ − 1988 Xt_timeout_callback (XtPointer closure, XtIntervalId *id)
+ − 1989 {
+ − 1990 struct Xt_timeout *timeout = (struct Xt_timeout *) closure;
+ − 1991 struct Xt_timeout *t2 = pending_timeouts;
+ − 1992 /* Remove this one from the list of pending timeouts */
+ − 1993 if (t2 == timeout)
+ − 1994 pending_timeouts = pending_timeouts->next;
+ − 1995 else
+ − 1996 {
+ − 1997 while (t2->next && t2->next != timeout) t2 = t2->next;
+ − 1998 assert (t2->next);
+ − 1999 t2->next = t2->next->next;
+ − 2000 }
+ − 2001 /* Add this one to the list of completed timeouts */
+ − 2002 timeout->next = completed_timeouts;
+ − 2003 completed_timeouts = timeout;
+ − 2004 }
+ − 2005
+ − 2006 static int
+ − 2007 emacs_Xt_add_timeout (EMACS_TIME thyme)
+ − 2008 {
+ − 2009 struct Xt_timeout *timeout = Blocktype_alloc (the_Xt_timeout_blocktype);
+ − 2010 EMACS_TIME current_time;
+ − 2011 int milliseconds;
+ − 2012
+ − 2013 timeout->id = timeout_id_tick++;
+ − 2014 timeout->next = pending_timeouts;
+ − 2015 pending_timeouts = timeout;
+ − 2016 EMACS_GET_TIME (current_time);
+ − 2017 EMACS_SUB_TIME (thyme, thyme, current_time);
+ − 2018 milliseconds = EMACS_SECS (thyme) * 1000 +
+ − 2019 EMACS_USECS (thyme) / 1000;
+ − 2020 if (milliseconds < 1)
+ − 2021 milliseconds = 1;
+ − 2022 timeout->interval_id = XtAppAddTimeOut (Xt_app_con, milliseconds,
+ − 2023 Xt_timeout_callback,
+ − 2024 (XtPointer) timeout);
+ − 2025 return timeout->id;
+ − 2026 }
+ − 2027
+ − 2028 static void
+ − 2029 emacs_Xt_remove_timeout (int id)
+ − 2030 {
+ − 2031 struct Xt_timeout *timeout, *t2;
+ − 2032
+ − 2033 timeout = NULL;
+ − 2034
+ − 2035 /* Find the timeout on the list of pending ones, if it's still there. */
+ − 2036 if (pending_timeouts)
+ − 2037 {
+ − 2038 if (id == pending_timeouts->id)
+ − 2039 {
+ − 2040 timeout = pending_timeouts;
+ − 2041 pending_timeouts = pending_timeouts->next;
+ − 2042 }
+ − 2043 else
+ − 2044 {
+ − 2045 t2 = pending_timeouts;
+ − 2046 while (t2->next && t2->next->id != id) t2 = t2->next;
+ − 2047 if ( t2->next) /*found it */
+ − 2048 {
+ − 2049 timeout = t2->next;
+ − 2050 t2->next = t2->next->next;
+ − 2051 }
+ − 2052 }
+ − 2053 /* if it was pending, we have removed it from the list */
+ − 2054 if (timeout)
+ − 2055 XtRemoveTimeOut (timeout->interval_id);
+ − 2056 }
+ − 2057
+ − 2058 /* It could be that the Xt call back was already called but we didn't convert
+ − 2059 into an Emacs event yet */
+ − 2060 if (!timeout && completed_timeouts)
+ − 2061 {
+ − 2062 /* Code duplication! */
+ − 2063 if (id == completed_timeouts->id)
+ − 2064 {
+ − 2065 timeout = completed_timeouts;
+ − 2066 completed_timeouts = completed_timeouts->next;
+ − 2067 }
+ − 2068 else
+ − 2069 {
+ − 2070 t2 = completed_timeouts;
+ − 2071 while (t2->next && t2->next->id != id) t2 = t2->next;
+ − 2072 if ( t2->next) /*found it */
+ − 2073 {
+ − 2074 timeout = t2->next;
+ − 2075 t2->next = t2->next->next;
+ − 2076 }
+ − 2077 }
+ − 2078 }
+ − 2079
+ − 2080 /* If we found the thing on the lists of timeouts,
+ − 2081 and removed it, deallocate
+ − 2082 */
+ − 2083 if (timeout)
+ − 2084 Blocktype_free (the_Xt_timeout_blocktype, timeout);
+ − 2085 }
+ − 2086
+ − 2087 static void
440
+ − 2088 Xt_timeout_to_emacs_event (Lisp_Event *emacs_event)
428
+ − 2089 {
+ − 2090 struct Xt_timeout *timeout = completed_timeouts;
+ − 2091 assert (timeout);
+ − 2092 completed_timeouts = completed_timeouts->next;
+ − 2093 emacs_event->event_type = timeout_event;
+ − 2094 /* timeout events have nil as channel */
+ − 2095 emacs_event->timestamp = 0; /* #### wrong!! */
+ − 2096 emacs_event->event.timeout.interval_id = timeout->id;
+ − 2097 emacs_event->event.timeout.function = Qnil;
+ − 2098 emacs_event->event.timeout.object = Qnil;
+ − 2099 Blocktype_free (the_Xt_timeout_blocktype, timeout);
+ − 2100 }
+ − 2101
+ − 2102
+ − 2103 /************************************************************************/
+ − 2104 /* process and tty events */
+ − 2105 /************************************************************************/
+ − 2106
+ − 2107 struct what_is_ready_closure
+ − 2108 {
+ − 2109 int fd;
+ − 2110 Lisp_Object what;
+ − 2111 XtInputId id;
+ − 2112 };
+ − 2113
+ − 2114 static Lisp_Object *filedesc_with_input;
+ − 2115 static struct what_is_ready_closure **filedesc_to_what_closure;
+ − 2116
+ − 2117 static void
+ − 2118 init_what_input_once (void)
+ − 2119 {
+ − 2120 int i;
+ − 2121
+ − 2122 filedesc_with_input = xnew_array (Lisp_Object, MAXDESC);
+ − 2123 filedesc_to_what_closure =
+ − 2124 xnew_array (struct what_is_ready_closure *, MAXDESC);
+ − 2125
+ − 2126 for (i = 0; i < MAXDESC; i++)
+ − 2127 {
+ − 2128 filedesc_to_what_closure[i] = 0;
+ − 2129 filedesc_with_input[i] = Qnil;
+ − 2130 }
+ − 2131
+ − 2132 process_events_occurred = 0;
+ − 2133 tty_events_occurred = 0;
+ − 2134 }
+ − 2135
+ − 2136 static void
+ − 2137 mark_what_as_being_ready (struct what_is_ready_closure *closure)
+ − 2138 {
+ − 2139 if (NILP (filedesc_with_input[closure->fd]))
+ − 2140 {
+ − 2141 SELECT_TYPE temp_mask;
+ − 2142 FD_ZERO (&temp_mask);
+ − 2143 FD_SET (closure->fd, &temp_mask);
+ − 2144 /* Check to make sure there's *really* input available.
+ − 2145 Sometimes things seem to get confused and this gets called
+ − 2146 for the tty fd when there's really only input available
+ − 2147 on some process's fd. (It will subsequently get called
+ − 2148 for that process's fd, so returning without setting any
+ − 2149 flags will take care of it.) To see the problem, uncomment
+ − 2150 the stderr_out below, turn NORMAL_QUIT_CHECK_TIMEOUT_MSECS
+ − 2151 down to 25, do sh -c 'xemacs -nw -q -f shell 2>/tmp/log'
+ − 2152 and press return repeatedly. (Seen under AIX & Linux.)
+ − 2153 -dkindred@cs.cmu.edu */
+ − 2154 if (!poll_fds_for_input (temp_mask))
+ − 2155 {
+ − 2156 #if 0
+ − 2157 stderr_out ("mark_what_as_being_ready: no input available (fd=%d)\n",
+ − 2158 closure->fd);
+ − 2159 #endif
+ − 2160 return;
+ − 2161 }
+ − 2162 filedesc_with_input[closure->fd] = closure->what;
+ − 2163 if (PROCESSP (closure->what))
+ − 2164 /* Don't increment this if the current process is already marked
+ − 2165 * as having input. */
+ − 2166 process_events_occurred++;
+ − 2167 else
+ − 2168 tty_events_occurred++;
+ − 2169 }
+ − 2170 }
+ − 2171
+ − 2172 static void
+ − 2173 Xt_what_callback (void *closure, int *source, XtInputId *id)
+ − 2174 {
+ − 2175 /* If closure is 0, then we got a fake event from a signal handler.
+ − 2176 The only purpose of this is to make XtAppProcessEvent() stop
+ − 2177 blocking. */
+ − 2178 if (closure)
+ − 2179 mark_what_as_being_ready ((struct what_is_ready_closure *) closure);
+ − 2180 else
+ − 2181 {
+ − 2182 fake_event_occurred++;
+ − 2183 drain_signal_event_pipe ();
+ − 2184 }
+ − 2185 }
+ − 2186
+ − 2187 static void
+ − 2188 select_filedesc (int fd, Lisp_Object what)
+ − 2189 {
+ − 2190 struct what_is_ready_closure *closure;
+ − 2191
+ − 2192 /* If somebody is trying to select something that's already selected
+ − 2193 for, then something went wrong. The generic routines ought to
+ − 2194 detect this and error before here. */
+ − 2195 assert (!filedesc_to_what_closure[fd]);
+ − 2196
+ − 2197 closure = xnew (struct what_is_ready_closure);
+ − 2198 closure->fd = fd;
+ − 2199 closure->what = what;
+ − 2200 closure->id =
+ − 2201 XtAppAddInput (Xt_app_con, fd,
+ − 2202 (XtPointer) (XtInputReadMask /* | XtInputExceptMask */),
+ − 2203 Xt_what_callback, closure);
+ − 2204 filedesc_to_what_closure[fd] = closure;
+ − 2205 }
+ − 2206
+ − 2207 static void
+ − 2208 unselect_filedesc (int fd)
+ − 2209 {
+ − 2210 struct what_is_ready_closure *closure = filedesc_to_what_closure[fd];
+ − 2211
+ − 2212 assert (closure);
+ − 2213 if (!NILP (filedesc_with_input[fd]))
+ − 2214 {
+ − 2215 /* We are unselecting this process before we have drained the rest of
+ − 2216 the input from it, probably from status_notify() in the command loop.
+ − 2217 This can happen like so:
+ − 2218
+ − 2219 - We are waiting in XtAppNextEvent()
+ − 2220 - Process generates output
+ − 2221 - Process is marked as being ready
+ − 2222 - Process dies, SIGCHLD gets generated before we return (!?)
+ − 2223 It could happen I guess.
+ − 2224 - sigchld_handler() marks process as dead
+ − 2225 - Somehow we end up getting a new KeyPress event on the queue
+ − 2226 at the same time (I'm really so sure how that happens but I'm
+ − 2227 not sure it can't either so let's assume it can...).
+ − 2228 - Key events have priority so we return that instead of the proc.
+ − 2229 - Before dispatching the lisp key event we call status_notify()
+ − 2230 - Which deselects the process that SIGCHLD marked as dead.
+ − 2231
+ − 2232 Thus we never remove it from _with_input and turn it into a lisp
+ − 2233 event, so we need to do it here. But this does not mean that we're
+ − 2234 throwing away the last block of output - status_notify() has already
+ − 2235 taken care of running the proc filter or whatever.
+ − 2236 */
+ − 2237 filedesc_with_input[fd] = Qnil;
+ − 2238 if (PROCESSP (closure->what))
+ − 2239 {
+ − 2240 assert (process_events_occurred > 0);
+ − 2241 process_events_occurred--;
+ − 2242 }
+ − 2243 else
+ − 2244 {
+ − 2245 assert (tty_events_occurred > 0);
+ − 2246 tty_events_occurred--;
+ − 2247 }
+ − 2248 }
+ − 2249 XtRemoveInput (closure->id);
+ − 2250 xfree (closure);
+ − 2251 filedesc_to_what_closure[fd] = 0;
+ − 2252 }
+ − 2253
+ − 2254 static void
440
+ − 2255 emacs_Xt_select_process (Lisp_Process *p)
428
+ − 2256 {
+ − 2257 Lisp_Object process;
+ − 2258 int infd = event_stream_unixoid_select_process (p);
+ − 2259
+ − 2260 XSETPROCESS (process, p);
+ − 2261 select_filedesc (infd, process);
+ − 2262 }
+ − 2263
+ − 2264 static void
440
+ − 2265 emacs_Xt_unselect_process (Lisp_Process *p)
428
+ − 2266 {
+ − 2267 int infd = event_stream_unixoid_unselect_process (p);
+ − 2268
+ − 2269 unselect_filedesc (infd);
+ − 2270 }
+ − 2271
+ − 2272 static USID
+ − 2273 emacs_Xt_create_stream_pair (void* inhandle, void* outhandle,
+ − 2274 Lisp_Object* instream, Lisp_Object* outstream, int flags)
+ − 2275 {
+ − 2276 USID u = event_stream_unixoid_create_stream_pair
+ − 2277 (inhandle, outhandle, instream, outstream, flags);
+ − 2278 if (u != USID_ERROR)
+ − 2279 u = USID_DONTHASH;
+ − 2280 return u;
+ − 2281 }
+ − 2282
+ − 2283 static USID
+ − 2284 emacs_Xt_delete_stream_pair (Lisp_Object instream, Lisp_Object outstream)
+ − 2285 {
+ − 2286 event_stream_unixoid_delete_stream_pair (instream, outstream);
+ − 2287 return USID_DONTHASH;
+ − 2288 }
+ − 2289
+ − 2290 /* This is called from GC when a process object is about to be freed.
+ − 2291 If we've still got pointers to it in this file, we're gonna lose hard.
+ − 2292 */
+ − 2293 void
440
+ − 2294 debug_process_finalization (Lisp_Process *p)
428
+ − 2295 {
+ − 2296 #if 0 /* #### */
+ − 2297 int i;
+ − 2298 Lisp_Object instr, outstr;
+ − 2299
+ − 2300 get_process_streams (p, &instr, &outstr);
+ − 2301 /* if it still has fds, then it hasn't been killed yet. */
+ − 2302 assert (NILP(instr));
+ − 2303 assert (NILP(outstr));
+ − 2304 /* Better not still be in the "with input" table; we know it's got no fds. */
+ − 2305 for (i = 0; i < MAXDESC; i++)
+ − 2306 {
+ − 2307 Lisp_Object process = filedesc_fds_with_input [i];
+ − 2308 assert (!PROCESSP (process) || XPROCESS (process) != p);
+ − 2309 }
+ − 2310 #endif
+ − 2311 }
+ − 2312
+ − 2313 static void
440
+ − 2314 Xt_process_to_emacs_event (Lisp_Event *emacs_event)
428
+ − 2315 {
+ − 2316 int i;
+ − 2317
+ − 2318 assert (process_events_occurred > 0);
438
+ − 2319
428
+ − 2320 for (i = 0; i < MAXDESC; i++)
+ − 2321 {
438
+ − 2322 Lisp_Object process = filedesc_with_input[i];
428
+ − 2323 if (PROCESSP (process))
438
+ − 2324 {
+ − 2325 filedesc_with_input[i] = Qnil;
+ − 2326 process_events_occurred--;
+ − 2327 /* process events have nil as channel */
+ − 2328 emacs_event->event_type = process_event;
+ − 2329 emacs_event->timestamp = 0; /* #### */
+ − 2330 emacs_event->event.process.process = process;
+ − 2331 return;
+ − 2332 }
428
+ − 2333 }
438
+ − 2334 abort ();
428
+ − 2335 }
+ − 2336
+ − 2337 static void
+ − 2338 emacs_Xt_select_console (struct console *con)
+ − 2339 {
+ − 2340 Lisp_Object console;
+ − 2341 int infd;
+ − 2342
+ − 2343 if (CONSOLE_X_P (con))
+ − 2344 return; /* X consoles are automatically selected for when we
+ − 2345 initialize them in Xt */
+ − 2346 infd = event_stream_unixoid_select_console (con);
+ − 2347 XSETCONSOLE (console, con);
+ − 2348 select_filedesc (infd, console);
+ − 2349 }
+ − 2350
+ − 2351 static void
+ − 2352 emacs_Xt_unselect_console (struct console *con)
+ − 2353 {
+ − 2354 Lisp_Object console;
+ − 2355 int infd;
+ − 2356
+ − 2357 if (CONSOLE_X_P (con))
+ − 2358 return; /* X consoles are automatically selected for when we
+ − 2359 initialize them in Xt */
+ − 2360 infd = event_stream_unixoid_unselect_console (con);
+ − 2361 XSETCONSOLE (console, con);
+ − 2362 unselect_filedesc (infd);
+ − 2363 }
+ − 2364
+ − 2365 /* read an event from a tty, if one is available. Returns non-zero
+ − 2366 if an event was available. Note that when this function is
+ − 2367 called, there should always be a tty marked as ready for input.
+ − 2368 However, the input condition might actually be EOF, so there
+ − 2369 may not really be any input available. (In this case,
+ − 2370 read_event_from_tty_or_stream_desc() will arrange for the TTY device
+ − 2371 to be deleted.) */
+ − 2372
+ − 2373 static int
440
+ − 2374 Xt_tty_to_emacs_event (Lisp_Event *emacs_event)
428
+ − 2375 {
+ − 2376 int i;
+ − 2377
+ − 2378 assert (tty_events_occurred > 0);
+ − 2379 for (i = 0; i < MAXDESC; i++)
+ − 2380 {
+ − 2381 Lisp_Object console = filedesc_with_input[i];
+ − 2382 if (CONSOLEP (console))
+ − 2383 {
+ − 2384 assert (tty_events_occurred > 0);
+ − 2385 tty_events_occurred--;
+ − 2386 filedesc_with_input[i] = Qnil;
+ − 2387 if (read_event_from_tty_or_stream_desc
+ − 2388 (emacs_event, XCONSOLE (console), i))
+ − 2389 return 1;
+ − 2390 }
+ − 2391 }
+ − 2392
+ − 2393 return 0;
+ − 2394 }
+ − 2395
+ − 2396
+ − 2397 /************************************************************************/
+ − 2398 /* debugging functions to decipher an event */
+ − 2399 /************************************************************************/
+ − 2400
+ − 2401 #ifdef DEBUG_XEMACS
+ − 2402 #include "xintrinsicp.h" /* only describe_event() needs this */
+ − 2403 #include <X11/Xproto.h> /* only describe_event() needs this */
+ − 2404
+ − 2405 static void
+ − 2406 describe_event_window (Window window, Display *display)
+ − 2407 {
+ − 2408 struct frame *f;
+ − 2409 Widget w;
+ − 2410 stderr_out (" window: 0x%lx", (unsigned long) window);
+ − 2411 w = XtWindowToWidget (display, window);
+ − 2412 if (w)
+ − 2413 stderr_out (" %s", w->core.widget_class->core_class.class_name);
+ − 2414 f = x_any_window_to_frame (get_device_from_display (display), window);
+ − 2415 if (f)
+ − 2416 {
+ − 2417 char *buf = alloca_array (char, XSTRING_LENGTH (f->name) + 4);
+ − 2418 sprintf (buf, " \"%s\"", XSTRING_DATA (f->name));
+ − 2419 write_string_to_stdio_stream (stderr, 0, (Bufbyte *) buf, 0,
442
+ − 2420 strlen (buf), Qterminal, 1);
428
+ − 2421 }
+ − 2422 stderr_out ("\n");
+ − 2423 }
+ − 2424
442
+ − 2425 static const char *
428
+ − 2426 XEvent_mode_to_string (int mode)
+ − 2427 {
+ − 2428 switch (mode)
+ − 2429 {
+ − 2430 case NotifyNormal: return "Normal";
+ − 2431 case NotifyGrab: return "Grab";
+ − 2432 case NotifyUngrab: return "Ungrab";
+ − 2433 case NotifyWhileGrabbed: return "WhileGrabbed";
+ − 2434 default: return "???";
+ − 2435 }
+ − 2436 }
+ − 2437
442
+ − 2438 static const char *
428
+ − 2439 XEvent_detail_to_string (int detail)
+ − 2440 {
+ − 2441 switch (detail)
+ − 2442 {
+ − 2443 case NotifyAncestor: return "Ancestor";
+ − 2444 case NotifyInferior: return "Inferior";
+ − 2445 case NotifyNonlinear: return "Nonlinear";
+ − 2446 case NotifyNonlinearVirtual: return "NonlinearVirtual";
+ − 2447 case NotifyPointer: return "Pointer";
+ − 2448 case NotifyPointerRoot: return "PointerRoot";
+ − 2449 case NotifyDetailNone: return "DetailNone";
+ − 2450 default: return "???";
+ − 2451 }
+ − 2452 }
+ − 2453
442
+ − 2454 static const char *
428
+ − 2455 XEvent_visibility_to_string (int state)
+ − 2456 {
+ − 2457 switch (state)
+ − 2458 {
+ − 2459 case VisibilityFullyObscured: return "FullyObscured";
+ − 2460 case VisibilityPartiallyObscured: return "PartiallyObscured";
+ − 2461 case VisibilityUnobscured: return "Unobscured";
+ − 2462 default: return "???";
+ − 2463 }
+ − 2464 }
+ − 2465
+ − 2466 static void
+ − 2467 describe_event (XEvent *event)
+ − 2468 {
+ − 2469 char buf[100];
+ − 2470 struct device *d = get_device_from_display (event->xany.display);
+ − 2471
+ − 2472 sprintf (buf, "%s%s", x_event_name (event->type),
+ − 2473 event->xany.send_event ? " (send)" : "");
+ − 2474 stderr_out ("%-30s", buf);
+ − 2475 switch (event->type)
+ − 2476 {
+ − 2477 case FocusIn:
+ − 2478 case FocusOut:
+ − 2479 {
+ − 2480 XFocusChangeEvent *ev = &event->xfocus;
+ − 2481 describe_event_window (ev->window, ev->display);
+ − 2482 stderr_out (" mode: %s\n", XEvent_mode_to_string (ev->mode));
+ − 2483 stderr_out (" detail: %s\n", XEvent_detail_to_string(ev->detail));
+ − 2484 break;
+ − 2485 }
+ − 2486
+ − 2487 case KeyPress:
+ − 2488 {
+ − 2489 XKeyEvent *ev = &event->xkey;
+ − 2490 unsigned int state = ev->state;
+ − 2491
+ − 2492 describe_event_window (ev->window, ev->display);
+ − 2493 stderr_out (" subwindow: %ld\n", ev->subwindow);
+ − 2494 stderr_out (" state: ");
+ − 2495 /* Complete list of modifier key masks */
+ − 2496 if (state & ShiftMask) stderr_out ("Shift ");
+ − 2497 if (state & LockMask) stderr_out ("Lock ");
+ − 2498 if (state & ControlMask) stderr_out ("Control ");
+ − 2499 if (state & Mod1Mask) stderr_out ("Mod1 ");
+ − 2500 if (state & Mod2Mask) stderr_out ("Mod2 ");
+ − 2501 if (state & Mod3Mask) stderr_out ("Mod3 ");
+ − 2502 if (state & Mod4Mask) stderr_out ("Mod4 ");
+ − 2503 if (state & Mod5Mask) stderr_out ("Mod5 ");
+ − 2504
+ − 2505 if (! state)
+ − 2506 stderr_out ("vanilla\n");
+ − 2507 else
+ − 2508 stderr_out ("\n");
+ − 2509 if (x_key_is_modifier_p (ev->keycode, d))
+ − 2510 stderr_out (" Modifier key");
+ − 2511 stderr_out (" keycode: 0x%x\n", ev->keycode);
+ − 2512 }
+ − 2513 break;
+ − 2514
+ − 2515 case Expose:
442
+ − 2516 if (debug_x_events > 1)
428
+ − 2517 {
+ − 2518 XExposeEvent *ev = &event->xexpose;
+ − 2519 describe_event_window (ev->window, ev->display);
+ − 2520 stderr_out (" region: x=%d y=%d width=%d height=%d\n",
+ − 2521 ev->x, ev->y, ev->width, ev->height);
+ − 2522 stderr_out (" count: %d\n", ev->count);
+ − 2523 }
+ − 2524 else
+ − 2525 stderr_out ("\n");
+ − 2526 break;
+ − 2527
+ − 2528 case GraphicsExpose:
442
+ − 2529 if (debug_x_events > 1)
428
+ − 2530 {
+ − 2531 XGraphicsExposeEvent *ev = &event->xgraphicsexpose;
+ − 2532 describe_event_window (ev->drawable, ev->display);
+ − 2533 stderr_out (" major: %s\n",
+ − 2534 (ev ->major_code == X_CopyArea ? "CopyArea" :
+ − 2535 (ev->major_code == X_CopyPlane ? "CopyPlane" : "?")));
+ − 2536 stderr_out (" region: x=%d y=%d width=%d height=%d\n",
+ − 2537 ev->x, ev->y, ev->width, ev->height);
+ − 2538 stderr_out (" count: %d\n", ev->count);
+ − 2539 }
+ − 2540 else
+ − 2541 stderr_out ("\n");
+ − 2542 break;
+ − 2543
+ − 2544 case EnterNotify:
+ − 2545 case LeaveNotify:
442
+ − 2546 if (debug_x_events > 1)
428
+ − 2547 {
+ − 2548 XCrossingEvent *ev = &event->xcrossing;
+ − 2549 describe_event_window (ev->window, ev->display);
+ − 2550 #if 0
+ − 2551 stderr_out(" subwindow: 0x%x\n", ev->subwindow);
+ − 2552 stderr_out(" pos: %d %d\n", ev->x, ev->y);
+ − 2553 stderr_out(" root pos: %d %d\n", ev->x_root, ev->y_root);
+ − 2554 #endif
+ − 2555 stderr_out(" mode: %s\n", XEvent_mode_to_string(ev->mode));
+ − 2556 stderr_out(" detail: %s\n", XEvent_detail_to_string(ev->detail));
+ − 2557 stderr_out(" focus: %d\n", ev->focus);
+ − 2558 #if 0
+ − 2559 stderr_out(" state: 0x%x\n", ev->state);
+ − 2560 #endif
+ − 2561 }
+ − 2562 else
+ − 2563 stderr_out("\n");
+ − 2564 break;
+ − 2565
+ − 2566 case ConfigureNotify:
442
+ − 2567 if (debug_x_events > 1)
428
+ − 2568 {
+ − 2569 XConfigureEvent *ev = &event->xconfigure;
+ − 2570 describe_event_window (ev->window, ev->display);
+ − 2571 stderr_out(" above: 0x%lx\n", ev->above);
+ − 2572 stderr_out(" size: %d %d %d %d\n", ev->x, ev->y,
+ − 2573 ev->width, ev->height);
+ − 2574 stderr_out(" redirect: %d\n", ev->override_redirect);
+ − 2575 }
+ − 2576 else
+ − 2577 stderr_out("\n");
+ − 2578 break;
+ − 2579
+ − 2580 case VisibilityNotify:
442
+ − 2581 if (debug_x_events > 1)
428
+ − 2582 {
+ − 2583 XVisibilityEvent *ev = &event->xvisibility;
+ − 2584 describe_event_window (ev->window, ev->display);
+ − 2585 stderr_out(" state: %s\n", XEvent_visibility_to_string(ev->state));
+ − 2586 }
+ − 2587 else
+ − 2588 stderr_out ("\n");
+ − 2589 break;
+ − 2590
+ − 2591 case ClientMessage:
+ − 2592 {
+ − 2593 XClientMessageEvent *ev = &event->xclient;
+ − 2594 char *name = XGetAtomName (ev->display, ev->message_type);
+ − 2595 stderr_out ("%s", name);
+ − 2596 if (!strcmp (name, "WM_PROTOCOLS")) {
+ − 2597 char *protname = XGetAtomName (ev->display, ev->data.l[0]);
+ − 2598 stderr_out ("(%s)", protname);
+ − 2599 XFree (protname);
+ − 2600 }
+ − 2601 XFree (name);
+ − 2602 stderr_out ("\n");
+ − 2603 break;
+ − 2604 }
+ − 2605
+ − 2606 default:
+ − 2607 stderr_out ("\n");
+ − 2608 break;
+ − 2609 }
+ − 2610
+ − 2611 fflush (stdout);
+ − 2612 }
+ − 2613
+ − 2614 #endif /* include describe_event definition */
+ − 2615
+ − 2616
+ − 2617 /************************************************************************/
+ − 2618 /* get the next event from Xt */
+ − 2619 /************************************************************************/
+ − 2620
+ − 2621 static Lisp_Object dispatch_event_queue, dispatch_event_queue_tail;
+ − 2622
442
+ − 2623 void
428
+ − 2624 enqueue_Xt_dispatch_event (Lisp_Object event)
+ − 2625 {
+ − 2626 enqueue_event (event, &dispatch_event_queue, &dispatch_event_queue_tail);
+ − 2627 }
+ − 2628
+ − 2629 static Lisp_Object
+ − 2630 dequeue_Xt_dispatch_event (void)
+ − 2631 {
+ − 2632 return dequeue_event (&dispatch_event_queue, &dispatch_event_queue_tail);
+ − 2633 }
+ − 2634
+ − 2635 /* This business exists because menu events "happen" when
+ − 2636 menubar_selection_callback() is called from somewhere deep
+ − 2637 within XtAppProcessEvent in emacs_Xt_next_event(). The
+ − 2638 callback needs to terminate the modal loop in that function
+ − 2639 or else it will continue waiting until another event is
+ − 2640 received.
+ − 2641
+ − 2642 Same business applies to scrollbar events. */
+ − 2643
+ − 2644 void
+ − 2645 signal_special_Xt_user_event (Lisp_Object channel, Lisp_Object function,
+ − 2646 Lisp_Object object)
+ − 2647 {
+ − 2648 Lisp_Object event = Fmake_event (Qnil, Qnil);
+ − 2649
+ − 2650 XEVENT (event)->event_type = misc_user_event;
+ − 2651 XEVENT (event)->channel = channel;
+ − 2652 XEVENT (event)->event.eval.function = function;
+ − 2653 XEVENT (event)->event.eval.object = object;
+ − 2654
+ − 2655 enqueue_Xt_dispatch_event (event);
+ − 2656 }
+ − 2657
+ − 2658 static void
440
+ − 2659 emacs_Xt_next_event (Lisp_Event *emacs_event)
428
+ − 2660 {
+ − 2661 we_didnt_get_an_event:
+ − 2662
+ − 2663 while (NILP (dispatch_event_queue) &&
+ − 2664 !completed_timeouts &&
+ − 2665 !fake_event_occurred &&
+ − 2666 !process_events_occurred &&
+ − 2667 !tty_events_occurred)
+ − 2668 {
+ − 2669
+ − 2670 /* Stupid logic in XtAppProcessEvent() dictates that, if process
+ − 2671 events and X events are both available, the process event gets
+ − 2672 taken first. This will cause an infinite loop if we're being
+ − 2673 called from Fdiscard_input().
+ − 2674 */
+ − 2675 if (XtAppPending (Xt_app_con) & XtIMXEvent)
+ − 2676 XtAppProcessEvent (Xt_app_con, XtIMXEvent);
+ − 2677 else
+ − 2678 {
+ − 2679 Lisp_Object devcons, concons;
+ − 2680
+ − 2681 /* We're about to block. Xt has a bug in it (big surprise,
+ − 2682 there) in that it blocks using select() and doesn't
+ − 2683 flush the Xlib output buffers (XNextEvent() does this
+ − 2684 automatically before blocking). So it's necessary
+ − 2685 for us to do this ourselves. If we don't do it, then
+ − 2686 display output may not be seen until the next time
+ − 2687 an X event is received. (This happens esp. with
+ − 2688 subprocess output that gets sent to a visible buffer.)
+ − 2689
+ − 2690 #### The above comment may not have any validity. */
+ − 2691
+ − 2692 DEVICE_LOOP_NO_BREAK (devcons, concons)
+ − 2693 {
+ − 2694 struct device *d;
+ − 2695 d = XDEVICE (XCAR (devcons));
+ − 2696
+ − 2697 if (DEVICE_X_P (d) && DEVICE_X_DISPLAY (d))
+ − 2698 /* emacs may be exiting */
+ − 2699 XFlush (DEVICE_X_DISPLAY (d));
+ − 2700 }
+ − 2701 XtAppProcessEvent (Xt_app_con, XtIMAll);
+ − 2702 }
+ − 2703 }
+ − 2704
+ − 2705 if (!NILP (dispatch_event_queue))
+ − 2706 {
+ − 2707 Lisp_Object event, event2;
+ − 2708 XSETEVENT (event2, emacs_event);
+ − 2709 event = dequeue_Xt_dispatch_event ();
+ − 2710 Fcopy_event (event, event2);
+ − 2711 Fdeallocate_event (event);
+ − 2712 }
+ − 2713 else if (tty_events_occurred)
+ − 2714 {
+ − 2715 if (!Xt_tty_to_emacs_event (emacs_event))
+ − 2716 goto we_didnt_get_an_event;
+ − 2717 }
+ − 2718 else if (completed_timeouts)
+ − 2719 Xt_timeout_to_emacs_event (emacs_event);
+ − 2720 else if (fake_event_occurred)
+ − 2721 {
+ − 2722 /* A dummy event, so that a cycle of the command loop will occur. */
+ − 2723 fake_event_occurred = 0;
+ − 2724 /* eval events have nil as channel */
+ − 2725 emacs_event->event_type = eval_event;
+ − 2726 emacs_event->event.eval.function = Qidentity;
+ − 2727 emacs_event->event.eval.object = Qnil;
+ − 2728 }
+ − 2729 else /* if (process_events_occurred) */
+ − 2730 Xt_process_to_emacs_event (emacs_event);
+ − 2731
+ − 2732 /* No need to call XFilterEvent; Xt does it for us */
+ − 2733 }
+ − 2734
+ − 2735 void
+ − 2736 emacs_Xt_event_handler (Widget wid /* unused */,
+ − 2737 XtPointer closure /* unused */,
+ − 2738 XEvent *event,
+ − 2739 Boolean *continue_to_dispatch /* unused */)
+ − 2740 {
+ − 2741 Lisp_Object emacs_event = Fmake_event (Qnil, Qnil);
+ − 2742
+ − 2743 #ifdef DEBUG_XEMACS
442
+ − 2744 if (debug_x_events > 0)
428
+ − 2745 {
+ − 2746 describe_event (event);
+ − 2747 }
+ − 2748 #endif /* DEBUG_XEMACS */
+ − 2749 if (x_event_to_emacs_event (event, XEVENT (emacs_event)))
+ − 2750 enqueue_Xt_dispatch_event (emacs_event);
+ − 2751 else
+ − 2752 Fdeallocate_event (emacs_event);
+ − 2753 }
+ − 2754
+ − 2755
+ − 2756 /************************************************************************/
+ − 2757 /* input pending / C-g checking */
+ − 2758 /************************************************************************/
+ − 2759
+ − 2760 static Bool
+ − 2761 quit_char_predicate (Display *display, XEvent *event, XPointer data)
+ − 2762 {
+ − 2763 struct device *d = get_device_from_display (display);
+ − 2764 struct x_device *xd = DEVICE_X_DATA (d);
+ − 2765 char c, quit_char;
+ − 2766 Bool *critical = (Bool *) data;
+ − 2767 Lisp_Object keysym;
+ − 2768
+ − 2769 if (critical)
+ − 2770 *critical = False;
+ − 2771 if ((event->type != KeyPress) ||
+ − 2772 (! x_any_window_to_frame (d, event->xany.window)) ||
+ − 2773 (event->xkey.state
+ − 2774 & (xd->MetaMask | xd->HyperMask | xd->SuperMask | xd->AltMask)))
+ − 2775 return 0;
+ − 2776
+ − 2777 /* This duplicates some code that exists elsewhere, but it's relatively
+ − 2778 fast and doesn't cons. */
+ − 2779 keysym = x_to_emacs_keysym (&event->xkey, 1);
+ − 2780 if (NILP (keysym)) return 0;
+ − 2781 if (CHAR_OR_CHAR_INTP (keysym))
+ − 2782 c = XCHAR_OR_CHAR_INT (keysym);
+ − 2783 /* Highly doubtful that these are the quit character, but... */
+ − 2784 else if (EQ (keysym, QKbackspace)) c = '\b';
+ − 2785 else if (EQ (keysym, QKtab)) c = '\t';
+ − 2786 else if (EQ (keysym, QKlinefeed)) c = '\n';
+ − 2787 else if (EQ (keysym, QKreturn)) c = '\r';
+ − 2788 else if (EQ (keysym, QKescape)) c = 27;
+ − 2789 else if (EQ (keysym, QKspace)) c = ' ';
+ − 2790 else if (EQ (keysym, QKdelete)) c = 127;
+ − 2791 else return 0;
+ − 2792
+ − 2793 if (event->xkey.state & xd->MetaMask) c |= 0x80;
+ − 2794 if ((event->xkey.state & ControlMask) && !(c >= 'A' && c <= 'Z'))
+ − 2795 c &= 0x1F; /* unshifted control characters */
+ − 2796 quit_char = CONSOLE_QUIT_CHAR (XCONSOLE (DEVICE_CONSOLE (d)));
+ − 2797 if (c == quit_char)
+ − 2798 return True;
+ − 2799 /* If we've got Control-Shift-G instead of Control-G, that means
+ − 2800 we have a critical_quit. Caps_Lock is its own modifier, so it
+ − 2801 won't cause ^G to act differently than before. */
+ − 2802 if (event->xkey.state & ControlMask) c &= 0x1F;
+ − 2803 if (c == quit_char)
+ − 2804 {
+ − 2805 if (critical) *critical = True;
+ − 2806 return True;
+ − 2807 }
+ − 2808 return False;
+ − 2809 }
+ − 2810
+ − 2811 /* This scans the X input queue for a KeyPress event that matches the
+ − 2812 quit character, and sets Vquit_flag. This is called from the
+ − 2813 QUIT macro to determine whether we should quit.
+ − 2814
+ − 2815 In a SIGIO world, this won't be called unless a SIGIO has happened
+ − 2816 since the last time we checked.
+ − 2817
+ − 2818 In a non-SIGIO world, this is called from emacs_Xt_event_pending_p
+ − 2819 (which is called from input_pending_p).
+ − 2820 */
+ − 2821 static void
+ − 2822 x_check_for_quit_char (Display *display)
+ − 2823 {
+ − 2824 XEvent event;
+ − 2825 int queued;
+ − 2826 Bool critical_quit = False;
+ − 2827 XEventsQueued (display, QueuedAfterReading);
+ − 2828 queued = XCheckIfEvent (display, &event,
+ − 2829 quit_char_predicate,
+ − 2830 (char *) &critical_quit);
+ − 2831 if (queued)
+ − 2832 {
+ − 2833 Vquit_flag = (critical_quit ? Qcritical : Qt);
+ − 2834 /* don't put the event back onto the queue. Those functions that
+ − 2835 wanted to read a ^G directly have arranged to do this. */
+ − 2836 }
+ − 2837 }
+ − 2838
+ − 2839 static void
+ − 2840 check_for_tty_quit_char (struct device *d)
+ − 2841 {
+ − 2842 SELECT_TYPE temp_mask;
+ − 2843 int infd = DEVICE_INFD (d);
+ − 2844 struct console *con = XCONSOLE (DEVICE_CONSOLE (d));
+ − 2845 Emchar quit_char = CONSOLE_QUIT_CHAR (con);
+ − 2846
+ − 2847 FD_ZERO (&temp_mask);
+ − 2848 FD_SET (infd, &temp_mask);
+ − 2849
+ − 2850 while (1)
+ − 2851 {
+ − 2852 Lisp_Object event;
+ − 2853 Emchar the_char;
+ − 2854
+ − 2855 if (!poll_fds_for_input (temp_mask))
+ − 2856 return;
+ − 2857
+ − 2858 event = Fmake_event (Qnil, Qnil);
+ − 2859 if (!read_event_from_tty_or_stream_desc (XEVENT (event), con, infd))
+ − 2860 /* EOF, or something ... */
+ − 2861 return;
+ − 2862 /* #### bogus. quit-char should be allowed to be any sort
+ − 2863 of event. */
+ − 2864 the_char = event_to_character (XEVENT (event), 1, 0, 0);
+ − 2865 if (the_char >= 0 && the_char == quit_char)
+ − 2866 {
+ − 2867 Vquit_flag = Qt;
+ − 2868 /* do not queue the C-g. See above. */
+ − 2869 return;
+ − 2870 }
+ − 2871
+ − 2872 /* queue the read event to be read for real later. */
+ − 2873 enqueue_Xt_dispatch_event (event);
+ − 2874 }
+ − 2875 }
+ − 2876
+ − 2877 static void
+ − 2878 emacs_Xt_quit_p (void)
+ − 2879 {
+ − 2880 Lisp_Object devcons, concons;
+ − 2881 CONSOLE_LOOP (concons)
+ − 2882 {
+ − 2883 struct console *con = XCONSOLE (XCAR (concons));
+ − 2884 if (!con->input_enabled)
+ − 2885 continue;
+ − 2886
+ − 2887 CONSOLE_DEVICE_LOOP (devcons, con)
+ − 2888 {
+ − 2889 struct device *d;
+ − 2890 d = XDEVICE (XCAR (devcons));
+ − 2891
+ − 2892 if (DEVICE_X_P (d) && DEVICE_X_DISPLAY (d))
+ − 2893 /* emacs may be exiting */
+ − 2894 x_check_for_quit_char (DEVICE_X_DISPLAY (d));
+ − 2895 else if (DEVICE_TTY_P (d))
+ − 2896 check_for_tty_quit_char (d);
+ − 2897 }
+ − 2898 }
+ − 2899 }
+ − 2900
+ − 2901 static void
+ − 2902 drain_X_queue (void)
+ − 2903 {
+ − 2904 while (XtAppPending (Xt_app_con) & XtIMXEvent)
+ − 2905 XtAppProcessEvent (Xt_app_con, XtIMXEvent);
+ − 2906 }
+ − 2907
+ − 2908 static int
+ − 2909 emacs_Xt_event_pending_p (int user_p)
+ − 2910 {
+ − 2911 Lisp_Object event;
+ − 2912 int tick_count_val;
+ − 2913
+ − 2914 /* If `user_p' is false, then this function returns whether there are any
+ − 2915 X, timeout, or fd events pending (that is, whether emacs_Xt_next_event()
+ − 2916 would return immediately without blocking).
+ − 2917
+ − 2918 if `user_p' is true, then this function returns whether there are any
+ − 2919 *user generated* events available (that is, whether there are keyboard
+ − 2920 or mouse-click events ready to be read). This also implies that
+ − 2921 emacs_Xt_next_event() would not block.
+ − 2922
+ − 2923 In a non-SIGIO world, this also checks whether the user has typed ^G,
+ − 2924 since this is a convenient place to do so. We don't need to do this
+ − 2925 in a SIGIO world, since input causes an interrupt.
+ − 2926 */
+ − 2927
+ − 2928 #if 0
+ − 2929 /* I don't think there's any point to this and it will nullify
+ − 2930 the speed gains achieved by the sigio_happened checking below.
+ − 2931 Its only advantage is that it may possibly make C-g response
+ − 2932 a bit faster. The C-g will be noticed within 0.25 second, anyway,
+ − 2933 even without this. */
+ − 2934 #ifndef SIGIO
+ − 2935 /* First check for C-g if necessary */
+ − 2936 emacs_Xt_quit_p ();
+ − 2937 #endif
+ − 2938 #endif
+ − 2939
+ − 2940 /* This function used to simply check whether there were any X
+ − 2941 events (or if user_p was 1, it iterated over all the pending
+ − 2942 X events using XCheckIfEvent(), looking for keystrokes and
+ − 2943 button events). That worked in the old cheesoid event loop,
+ − 2944 which didn't go through XtAppDispatchEvent(), but it doesn't
+ − 2945 work any more -- X events may not result in anything. For
+ − 2946 example, a button press in a blank part of the menubar appears
+ − 2947 as an X event but will not result in any Emacs events (a
+ − 2948 button press that activates the menubar results in an Emacs
+ − 2949 event through the stop_next_event mechanism).
+ − 2950
+ − 2951 The only accurate way of determining whether these X events
+ − 2952 translate into Emacs events is to go ahead and dispatch them
+ − 2953 until there's something on the dispatch queue. */
+ − 2954
+ − 2955 /* See if there are any user events already on the queue. */
+ − 2956 EVENT_CHAIN_LOOP (event, dispatch_event_queue)
+ − 2957 if (!user_p || command_event_p (event))
+ − 2958 return 1;
+ − 2959
+ − 2960 /* See if there's any TTY input available.
+ − 2961 */
+ − 2962 if (poll_fds_for_input (tty_only_mask))
+ − 2963 return 1;
+ − 2964
+ − 2965 if (!user_p)
+ − 2966 {
+ − 2967 /* If not user_p and there are any timer or file-desc events
+ − 2968 pending, we know there will be an event so we're through. */
+ − 2969 XtInputMask pending_value;
+ − 2970
+ − 2971 /* Note that formerly we just checked the value of XtAppPending()
+ − 2972 to determine if there was file-desc input. This doesn't
+ − 2973 work any more with the signal_event_pipe; XtAppPending()
+ − 2974 will says "yes" in this case but there isn't really any
+ − 2975 input. Another way of fixing this problem is for the
+ − 2976 signal_event_pipe to generate actual input in the form
+ − 2977 of an identity eval event or something. (#### maybe this
+ − 2978 actually happens?) */
+ − 2979
+ − 2980 if (poll_fds_for_input (process_only_mask))
+ − 2981 return 1;
+ − 2982
+ − 2983 pending_value = XtAppPending (Xt_app_con);
+ − 2984
+ − 2985 if (pending_value & XtIMTimer)
+ − 2986 return 1;
+ − 2987 }
+ − 2988
+ − 2989 /* XtAppPending() can be super-slow, esp. over a network connection.
+ − 2990 Quantify results have indicated that in some cases the
+ − 2991 call to detect_input_pending() completely dominates the
+ − 2992 running time of redisplay(). Fortunately, in a SIGIO world
+ − 2993 we can more quickly determine whether there are any X events:
+ − 2994 if an event has happened since the last time we checked, then
+ − 2995 a SIGIO will have happened. On a machine with broken SIGIO,
+ − 2996 we'll still be in an OK state -- the sigio_happened flag
+ − 2997 will get set at least once a second, so we'll be no more than
+ − 2998 one second behind reality. (In general it's OK if we
+ − 2999 erroneously report no input pending when input is actually
+ − 3000 pending() -- preemption is just a bit less efficient, that's
+ − 3001 all. It's bad bad bad if you err the other way -- you've
+ − 3002 promised that `next-event' won't block but it actually will,
+ − 3003 and some action might get delayed until the next time you
+ − 3004 hit a key.)
+ − 3005 */
+ − 3006
+ − 3007 /* quit_check_signal_tick_count is volatile so try to avoid race conditions
+ − 3008 by using a temporary variable */
+ − 3009 tick_count_val = quit_check_signal_tick_count;
448
+ − 3010 if (last_quit_check_signal_tick_count != tick_count_val
+ − 3011 #if !defined (SIGIO) || defined (CYGWIN)
+ − 3012 || (XtIMXEvent & XtAppPending (Xt_app_con))
+ − 3013 #endif
+ − 3014 )
428
+ − 3015 {
+ − 3016 last_quit_check_signal_tick_count = tick_count_val;
+ − 3017
+ − 3018 /* We need to drain the entire queue now -- if we only
+ − 3019 drain part of it, we may later on end up with events
+ − 3020 actually pending but detect_input_pending() returning
+ − 3021 false because there wasn't another SIGIO. */
+ − 3022 drain_X_queue ();
+ − 3023
+ − 3024 EVENT_CHAIN_LOOP (event, dispatch_event_queue)
+ − 3025 if (!user_p || command_event_p (event))
+ − 3026 return 1;
+ − 3027 }
+ − 3028
+ − 3029 return 0;
+ − 3030 }
+ − 3031
442
+ − 3032 static int
+ − 3033 emacs_Xt_current_event_timestamp (struct console *c)
+ − 3034 {
+ − 3035 /* semi-yuck. */
+ − 3036 Lisp_Object devs = CONSOLE_DEVICE_LIST (c);
+ − 3037
+ − 3038 if (NILP (devs))
+ − 3039 return 0;
+ − 3040 else
+ − 3041 {
+ − 3042 struct device *d = XDEVICE (XCAR (devs));
+ − 3043 return DEVICE_X_LAST_SERVER_TIMESTAMP (d);
+ − 3044 }
+ − 3045 }
+ − 3046
428
+ − 3047
+ − 3048 /************************************************************************/
+ − 3049 /* replacement for standard string-to-pixel converter */
+ − 3050 /************************************************************************/
+ − 3051
+ − 3052 /* This was constructed by ripping off the standard string-to-pixel
+ − 3053 converter from Converters.c in the Xt source code and modifying
+ − 3054 appropriately. */
+ − 3055
+ − 3056 #if 0
+ − 3057
+ − 3058 /* This is exported by the Xt library (at least by mine). If this
+ − 3059 isn't the case somewhere, rename this appropriately and remove
+ − 3060 the '#if 0'. Note, however, that I got "unknown structure"
+ − 3061 errors when I tried this. */
+ − 3062 XtConvertArgRec Const colorConvertArgs[] = {
440
+ − 3063 { XtWidgetBaseOffset, (XtPointer)XtOffsetOf(WidgetRec, core.screen),
+ − 3064 sizeof (Screen *) },
+ − 3065 { XtWidgetBaseOffset, (XtPointer)XtOffsetOf(WidgetRec, core.colormap),
+ − 3066 sizeof (Colormap) }
428
+ − 3067 };
+ − 3068
+ − 3069 #endif
+ − 3070
+ − 3071 #define done(type, value) \
+ − 3072 if (toVal->addr != NULL) { \
+ − 3073 if (toVal->size < sizeof(type)) { \
+ − 3074 toVal->size = sizeof(type); \
+ − 3075 return False; \
+ − 3076 } \
+ − 3077 *(type*)(toVal->addr) = (value); \
+ − 3078 } else { \
+ − 3079 static type static_val; \
+ − 3080 static_val = (value); \
+ − 3081 toVal->addr = (XPointer)&static_val; \
+ − 3082 } \
+ − 3083 toVal->size = sizeof(type); \
+ − 3084 return True /* Caller supplies `;' */
+ − 3085
+ − 3086 /* JH: We use this because I think there's a possibility this
+ − 3087 is called before the device is properly set up, in which case
+ − 3088 I don't want to abort. */
+ − 3089 extern struct device *get_device_from_display_1 (Display *dpy);
+ − 3090
+ − 3091 static
+ − 3092 Boolean EmacsXtCvtStringToPixel (
+ − 3093 Display *dpy,
+ − 3094 XrmValuePtr args,
+ − 3095 Cardinal *num_args,
+ − 3096 XrmValuePtr fromVal,
+ − 3097 XrmValuePtr toVal,
+ − 3098 XtPointer *closure_ret)
+ − 3099 {
+ − 3100 String str = (String)fromVal->addr;
+ − 3101 XColor screenColor;
+ − 3102 XColor exactColor;
+ − 3103 Screen *screen;
+ − 3104 Colormap colormap;
+ − 3105 Visual *visual;
+ − 3106 struct device *d;
+ − 3107 Status status;
+ − 3108 String params[1];
+ − 3109 Cardinal num_params = 1;
+ − 3110 XtAppContext the_app_con = XtDisplayToApplicationContext (dpy);
+ − 3111
+ − 3112 if (*num_args != 2) {
+ − 3113 XtAppWarningMsg(the_app_con, "wrongParameters", "cvtStringToPixel",
+ − 3114 "XtToolkitError",
+ − 3115 "String to pixel conversion needs screen and colormap arguments",
+ − 3116 (String *)NULL, (Cardinal *)NULL);
+ − 3117 return False;
+ − 3118 }
+ − 3119
+ − 3120 screen = *((Screen **) args[0].addr);
+ − 3121 colormap = *((Colormap *) args[1].addr);
+ − 3122
+ − 3123 /* The original uses the private function CompareISOLatin1().
+ − 3124 Use XmuCompareISOLatin1() if you want, but I don't think it
+ − 3125 makes any difference here. */
+ − 3126 if (strcmp(str, XtDefaultBackground) == 0) {
+ − 3127 *closure_ret = False;
+ − 3128 /* This refers to the display's "*reverseVideo" resource.
+ − 3129 These display resources aren't documented anywhere that
+ − 3130 I can find, so I'm going to ignore this. */
+ − 3131 /* if (pd->rv) done(Pixel, BlackPixelOfScreen(screen)) else */
+ − 3132 done(Pixel, WhitePixelOfScreen(screen));
+ − 3133 }
+ − 3134 if (strcmp(str, XtDefaultForeground) == 0) {
+ − 3135 *closure_ret = False;
+ − 3136 /* if (pd->rv) done(Pixel, WhitePixelOfScreen(screen)) else */
+ − 3137 done(Pixel, BlackPixelOfScreen(screen));
+ − 3138 }
+ − 3139
+ − 3140 /* Originally called XAllocNamedColor() here. */
+ − 3141 if ((d = get_device_from_display_1(dpy))) {
+ − 3142 visual = DEVICE_X_VISUAL(d);
+ − 3143 if (colormap != DEVICE_X_COLORMAP(d)) {
442
+ − 3144 XtAppWarningMsg(the_app_con, "weirdColormap", "cvtStringToPixel",
428
+ − 3145 "XtToolkitWarning",
442
+ − 3146 "The colormap passed to cvtStringToPixel doesn't match the one registered to the device.\n",
428
+ − 3147 NULL, 0);
+ − 3148 status = XAllocNamedColor(dpy, colormap, (char*)str, &screenColor, &exactColor);
+ − 3149 } else {
+ − 3150 status = XParseColor (dpy, colormap, (char*)str, &screenColor);
+ − 3151 if (status) {
+ − 3152 status = allocate_nearest_color (dpy, colormap, visual, &screenColor);
+ − 3153 }
+ − 3154 }
+ − 3155 } else {
+ − 3156 /* We haven't set up this device totally yet, so just punt */
+ − 3157 status = XAllocNamedColor(dpy, colormap, (char*)str, &screenColor, &exactColor);
+ − 3158 }
+ − 3159 if (status == 0) {
+ − 3160 params[0] = str;
+ − 3161 /* Server returns a specific error code but Xlib discards it. Ugh */
+ − 3162 if (XLookupColor(DisplayOfScreen(screen), colormap, (char*) str,
+ − 3163 &exactColor, &screenColor)) {
+ − 3164 XtAppWarningMsg(the_app_con, "noColormap", "cvtStringToPixel",
+ − 3165 "XtToolkitError",
+ − 3166 "Cannot allocate colormap entry for \"%s\"",
+ − 3167 params, &num_params);
+ − 3168
+ − 3169 } else {
+ − 3170 XtAppWarningMsg(the_app_con, "badValue", "cvtStringToPixel",
+ − 3171 "XtToolkitError",
+ − 3172 "Color name \"%s\" is not defined", params, &num_params);
+ − 3173 }
+ − 3174
+ − 3175 *closure_ret = False;
+ − 3176 return False;
+ − 3177 } else {
+ − 3178 *closure_ret = (char*)True;
+ − 3179 done(Pixel, screenColor.pixel);
+ − 3180 }
+ − 3181 }
+ − 3182
+ − 3183 /* ARGSUSED */
+ − 3184 static void EmacsFreePixel (
+ − 3185 XtAppContext app,
+ − 3186 XrmValuePtr toVal,
+ − 3187 XtPointer closure,
+ − 3188 XrmValuePtr args,
+ − 3189 Cardinal *num_args)
+ − 3190 {
+ − 3191 if (*num_args != 2) {
+ − 3192 XtAppWarningMsg(app, "wrongParameters","freePixel","XtToolkitError",
+ − 3193 "Freeing a pixel requires screen and colormap arguments",
+ − 3194 (String *)NULL, (Cardinal *)NULL);
+ − 3195 return;
+ − 3196 }
+ − 3197
+ − 3198 if (closure) {
+ − 3199 Screen *screen = *((Screen **) args[0].addr);
+ − 3200 Colormap colormap = *((Colormap *) args[1].addr);
+ − 3201 XFreeColors(DisplayOfScreen(screen), colormap,
+ − 3202 (unsigned long*)toVal->addr, 1, (unsigned long)0);
+ − 3203 }
+ − 3204 }
+ − 3205
+ − 3206
+ − 3207 /************************************************************************/
442
+ − 3208 /* handle focus changes for native widgets */
+ − 3209 /************************************************************************/
+ − 3210 static void
+ − 3211 emacs_Xt_event_widget_focus_in (Widget w,
+ − 3212 XEvent *event,
+ − 3213 String *params,
+ − 3214 Cardinal *num_params)
+ − 3215 {
+ − 3216 struct frame* f =
+ − 3217 x_any_widget_or_parent_to_frame (get_device_from_display (event->xany.display), w);
+ − 3218
+ − 3219 XtSetKeyboardFocus (FRAME_X_SHELL_WIDGET (f), w);
+ − 3220 }
+ − 3221
+ − 3222 static void
+ − 3223 emacs_Xt_event_widget_focus_out (Widget w,
+ − 3224 XEvent *event,
+ − 3225 String *params,
+ − 3226 Cardinal *num_params)
+ − 3227 {
+ − 3228 }
+ − 3229
+ − 3230 static XtActionsRec widgetActionsList[] =
+ − 3231 {
+ − 3232 {"widget-focus-in", emacs_Xt_event_widget_focus_in },
+ − 3233 {"widget-focus-out", emacs_Xt_event_widget_focus_out },
+ − 3234 };
+ − 3235
+ − 3236 static void
+ − 3237 emacs_Xt_event_add_widget_actions (XtAppContext ctx)
+ − 3238 {
+ − 3239 XtAppAddActions (ctx, widgetActionsList, 2);
+ − 3240 }
+ − 3241
+ − 3242
+ − 3243 /************************************************************************/
428
+ − 3244 /* initialization */
+ − 3245 /************************************************************************/
+ − 3246
+ − 3247 void
+ − 3248 syms_of_event_Xt (void)
+ − 3249 {
+ − 3250 defsymbol (&Qkey_mapping, "key-mapping");
+ − 3251 defsymbol (&Qsans_modifiers, "sans-modifiers");
440
+ − 3252 defsymbol (&Qself_insert_command, "self-insert-command");
428
+ − 3253 }
+ − 3254
+ − 3255 void
+ − 3256 reinit_vars_of_event_Xt (void)
+ − 3257 {
+ − 3258 Xt_event_stream = xnew (struct event_stream);
+ − 3259 Xt_event_stream->event_pending_p = emacs_Xt_event_pending_p;
442
+ − 3260 Xt_event_stream->force_event_pending = emacs_Xt_force_event_pending;
428
+ − 3261 Xt_event_stream->next_event_cb = emacs_Xt_next_event;
+ − 3262 Xt_event_stream->handle_magic_event_cb = emacs_Xt_handle_magic_event;
+ − 3263 Xt_event_stream->add_timeout_cb = emacs_Xt_add_timeout;
+ − 3264 Xt_event_stream->remove_timeout_cb = emacs_Xt_remove_timeout;
+ − 3265 Xt_event_stream->select_console_cb = emacs_Xt_select_console;
+ − 3266 Xt_event_stream->unselect_console_cb = emacs_Xt_unselect_console;
+ − 3267 Xt_event_stream->select_process_cb = emacs_Xt_select_process;
+ − 3268 Xt_event_stream->unselect_process_cb = emacs_Xt_unselect_process;
+ − 3269 Xt_event_stream->quit_p_cb = emacs_Xt_quit_p;
+ − 3270 Xt_event_stream->create_stream_pair_cb = emacs_Xt_create_stream_pair;
+ − 3271 Xt_event_stream->delete_stream_pair_cb = emacs_Xt_delete_stream_pair;
442
+ − 3272 Xt_event_stream->current_event_timestamp_cb =
+ − 3273 emacs_Xt_current_event_timestamp;
428
+ − 3274
+ − 3275 the_Xt_timeout_blocktype = Blocktype_new (struct Xt_timeout_blocktype);
+ − 3276
+ − 3277 last_quit_check_signal_tick_count = 0;
+ − 3278
+ − 3279 /* this function only makes safe calls */
+ − 3280 init_what_input_once ();
+ − 3281 }
+ − 3282
+ − 3283 void
+ − 3284 vars_of_event_Xt (void)
+ − 3285 {
+ − 3286 reinit_vars_of_event_Xt ();
+ − 3287
+ − 3288 dispatch_event_queue = Qnil;
+ − 3289 staticpro (&dispatch_event_queue);
+ − 3290 dispatch_event_queue_tail = Qnil;
452
+ − 3291 dump_add_root_object (&dispatch_event_queue_tail);
428
+ − 3292
+ − 3293 DEFVAR_BOOL ("x-allow-sendevents", &x_allow_sendevents /*
+ − 3294 *Non-nil means to allow synthetic events. Nil means they are ignored.
+ − 3295 Beware: allowing emacs to process SendEvents opens a big security hole.
+ − 3296 */ );
+ − 3297 x_allow_sendevents = 0;
+ − 3298
+ − 3299 #ifdef DEBUG_XEMACS
442
+ − 3300 DEFVAR_INT ("debug-x-events", &debug_x_events /*
428
+ − 3301 If non-zero, display debug information about X events that XEmacs sees.
+ − 3302 Information is displayed on stderr. Currently defined values are:
+ − 3303
+ − 3304 1 == non-verbose output
+ − 3305 2 == verbose output
+ − 3306 */ );
442
+ − 3307 debug_x_events = 0;
428
+ − 3308 #endif
+ − 3309 }
+ − 3310
+ − 3311 /* This mess is a hack that patches the shell widget to treat visual inheritance
+ − 3312 the same as colormap and depth inheritance */
+ − 3313
+ − 3314 static XtInitProc orig_shell_init_proc;
+ − 3315
+ − 3316 static void ShellVisualPatch(Widget wanted, Widget new,
+ − 3317 ArgList args, Cardinal *num_args)
+ − 3318 {
+ − 3319 Widget p;
+ − 3320 ShellWidget w = (ShellWidget) new;
+ − 3321
+ − 3322 /* first, call the original setup */
+ − 3323 (*orig_shell_init_proc)(wanted, new, args, num_args);
+ − 3324
+ − 3325 /* if the visual isn't explicitly set, grab it from the nearest shell ancestor */
+ − 3326 if (w->shell.visual == CopyFromParent) {
+ − 3327 p = XtParent(w);
+ − 3328 while (p && !XtIsShell(p)) p = XtParent(p);
+ − 3329 if (p) w->shell.visual = ((ShellWidget)p)->shell.visual;
+ − 3330 }
+ − 3331 }
+ − 3332
+ − 3333 void
+ − 3334 init_event_Xt_late (void) /* called when already initialized */
+ − 3335 {
+ − 3336 timeout_id_tick = 1;
+ − 3337 pending_timeouts = 0;
+ − 3338 completed_timeouts = 0;
+ − 3339
+ − 3340 event_stream = Xt_event_stream;
+ − 3341
+ − 3342 #if defined(HAVE_XIM) || defined(USE_XFONTSET)
+ − 3343 Initialize_Locale();
+ − 3344 #endif /* HAVE_XIM || USE_XFONTSET */
+ − 3345
+ − 3346 XtToolkitInitialize ();
+ − 3347 Xt_app_con = XtCreateApplicationContext ();
+ − 3348 XtAppSetFallbackResources (Xt_app_con, (String *) x_fallback_resources);
+ − 3349
442
+ − 3350 /* In select-x.c */
428
+ − 3351 x_selection_timeout = (XtAppGetSelectionTimeout (Xt_app_con) / 1000);
+ − 3352 XSetErrorHandler (x_error_handler);
+ − 3353 XSetIOErrorHandler (x_IO_error_handler);
+ − 3354
442
+ − 3355 #ifndef WIN32_NATIVE
428
+ − 3356 XtAppAddInput (Xt_app_con, signal_event_pipe[0],
+ − 3357 (XtPointer) (XtInputReadMask /* | XtInputExceptMask */),
+ − 3358 Xt_what_callback, 0);
+ − 3359 #endif
+ − 3360
+ − 3361 XtAppSetTypeConverter (Xt_app_con, XtRString, XtRPixel,
+ − 3362 EmacsXtCvtStringToPixel,
+ − 3363 (XtConvertArgList) colorConvertArgs,
+ − 3364 2, XtCacheByDisplay, EmacsFreePixel);
+ − 3365
+ − 3366 #ifdef XIM_XLIB
+ − 3367 XtAppSetTypeConverter (Xt_app_con, XtRString, XtRXimStyles,
+ − 3368 EmacsXtCvtStringToXIMStyles,
+ − 3369 NULL, 0,
+ − 3370 XtCacheByDisplay, EmacsFreeXIMStyles);
+ − 3371 #endif /* XIM_XLIB */
442
+ − 3372 /* Add extra actions to native widgets to handle focus and friends. */
+ − 3373 emacs_Xt_event_add_widget_actions (Xt_app_con);
428
+ − 3374
+ − 3375 /* insert the visual inheritance patch/hack described above */
+ − 3376 orig_shell_init_proc = shellClassRec.core_class.initialize;
+ − 3377 shellClassRec.core_class.initialize = ShellVisualPatch;
+ − 3378
+ − 3379 }