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.
6 This file is part of XEmacs.
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
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
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. */
23 /* Synched up with: Not in FSF. */
28 #include "console-x.h"
29 #include "../lwlib/lwlib.h"
30 #include "EmacsFrame.h"
32 #include "blocktype.h"
35 #include "console-tty.h"
38 #include "objects-x.h"
40 #include "redisplay.h"
44 #include "sysproc.h" /* for MAXDESC */
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>
57 #include "file-coding.h"
64 #if defined (HAVE_OFFIX_DND)
68 #include "events-mod.h"
70 static void handle_focus_event_1 (struct frame *f, int in_p);
72 static struct event_stream *Xt_event_stream;
74 /* With the new event model, all events go through XtDispatchEvent()
75 and are picked up by an event handler that is added to each frame
76 widget. (This is how it's supposed to be.) In the old method,
77 Emacs sucks out events directly from XtNextEvent() and only
78 dispatches the events that it doesn't need to deal with. This
79 old way has lots of corresponding junk that is no longer
80 necessary: lwlib extensions, synthetic XAnyEvents, unnecessary
83 /* The one and only one application context that Emacs uses. */
84 XtAppContext Xt_app_con;
86 /* Do we accept events sent by other clients? */
87 int x_allow_sendevents;
93 static int process_events_occurred;
94 static int tty_events_occurred;
96 /* Mask of bits indicating the descriptors that we wait for input on */
97 extern SELECT_TYPE input_wait_mask, process_only_mask, tty_only_mask;
99 static const String x_fallback_resources[] =
101 /* This file is automatically generated from the app-defaults file
102 in ../etc/Emacs.ad. These resources are consulted only if no
103 app-defaults file is found at all.
105 #include <Emacs.ad.h>
109 static Lisp_Object x_keysym_to_emacs_keysym (KeySym keysym, int simple_p);
110 void emacs_Xt_mapping_action (Widget w, XEvent *event);
111 void debug_process_finalization (Lisp_Process *p);
112 void emacs_Xt_event_handler (Widget wid, XtPointer closure, XEvent *event,
113 Boolean *continue_to_dispatch);
115 static int last_quit_check_signal_tick_count;
117 Lisp_Object Qkey_mapping;
118 Lisp_Object Qsans_modifiers;
121 /************************************************************************/
122 /* keymap handling */
123 /************************************************************************/
125 /* X bogusly doesn't define the interpretations of any bits besides
126 ModControl, ModShift, and ModLock; so the Interclient Communication
127 Conventions Manual says that we have to bend over backwards to figure
128 out what the other modifier bits mean. According to ICCCM:
130 - Any keycode which is assigned ModControl is a "control" key.
132 - Any modifier bit which is assigned to a keycode which generates Meta_L
133 or Meta_R is the modifier bit meaning "meta". Likewise for Super, Hyper,
136 - Any keypress event which contains ModControl in its state should be
137 interpreted as a "control" character.
139 - Any keypress event which contains a modifier bit in its state which is
140 generated by a keycode whose corresponding keysym is Meta_L or Meta_R
141 should be interpreted as a "meta" character. Likewise for Super, Hyper,
144 - It is illegal for a keysym to be associated with more than one modifier
147 This means that the only thing that emacs can reasonably interpret as a
148 "meta" key is a key whose keysym is Meta_L or Meta_R, and which generates
149 one of the modifier bits Mod1-Mod5.
151 Unfortunately, many keyboards don't have Meta keys in their default
152 configuration. So, if there are no Meta keys, but there are "Alt" keys,
153 emacs will interpret Alt as Meta. If there are both Meta and Alt keys,
154 then the Meta keys mean "Meta", and the Alt keys mean "Alt" (it used to
155 mean "Symbol," but that just confused the hell out of way too many people).
157 This works with the default configurations of the 19 keyboard-types I've
160 Emacs detects keyboard configurations which violate the above rules, and
161 prints an error message on the standard-error-output. (Perhaps it should
162 use a pop-up-window instead.)
165 /* For every key on the keyboard that has a known character correspondence,
166 we define the ascii-character property of the keysym, and make the
167 default binding for the key be self-insert-command.
169 The following magic is basically intimate knowledge of X11/keysymdef.h.
170 The keysym mappings defined by X11 are based on the iso8859 standards,
171 except for Cyrillic and Greek.
173 In a non-Mule world, a user can still have a multi-lingual editor, by doing
174 (set-face-font "...-iso8859-2" (current-buffer))
175 for all their Latin-2 buffers, etc. */
178 x_keysym_to_character (KeySym keysym)
181 Lisp_Object charset = Qzero;
182 #define USE_CHARSET(var,cs) \
183 ((var) = CHARSET_BY_LEADING_BYTE (LEADING_BYTE_##cs))
185 #define USE_CHARSET(var,lb)
189 if ((keysym & 0xff) < 0xa0)
194 case 0: /* ASCII + Latin1 */
195 USE_CHARSET (charset, LATIN_ISO8859_1);
196 code = keysym & 0x7f;
199 USE_CHARSET (charset, LATIN_ISO8859_2);
200 code = keysym & 0x7f;
203 USE_CHARSET (charset, LATIN_ISO8859_3);
204 code = keysym & 0x7f;
207 USE_CHARSET (charset, LATIN_ISO8859_4);
208 code = keysym & 0x7f;
210 case 4: /* Katakana */
211 USE_CHARSET (charset, KATAKANA_JISX0201);
212 if ((keysym & 0xff) > 0xa0)
213 code = keysym & 0x7f;
216 USE_CHARSET (charset, ARABIC_ISO8859_6);
217 code = keysym & 0x7f;
219 case 6: /* Cyrillic */
221 static unsigned char const cyrillic[] = /* 0x20 - 0x7f */
222 {0x00, 0x72, 0x73, 0x71, 0x74, 0x75, 0x76, 0x77,
223 0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x00, 0x7e, 0x7f,
224 0x70, 0x22, 0x23, 0x21, 0x24, 0x25, 0x26, 0x27,
225 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x00, 0x2e, 0x2f,
226 0x6e, 0x50, 0x51, 0x66, 0x54, 0x55, 0x64, 0x53,
227 0x65, 0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e,
228 0x5f, 0x6f, 0x60, 0x61, 0x62, 0x63, 0x56, 0x52,
229 0x6c, 0x6b, 0x57, 0x68, 0x6d, 0x69, 0x67, 0x6a,
230 0x4e, 0x30, 0x31, 0x46, 0x34, 0x35, 0x44, 0x33,
231 0x45, 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e,
232 0x3f, 0x4f, 0x40, 0x41, 0x42, 0x43, 0x36, 0x32,
233 0x4c, 0x4b, 0x37, 0x48, 0x4d, 0x49, 0x47, 0x4a};
234 USE_CHARSET (charset, CYRILLIC_ISO8859_5);
235 code = cyrillic[(keysym & 0x7f) - 0x20];
240 static unsigned char const greek[] = /* 0x20 - 0x7f */
241 {0x00, 0x36, 0x38, 0x39, 0x3a, 0x5a, 0x00, 0x3c,
242 0x3e, 0x5b, 0x00, 0x3f, 0x00, 0x00, 0x35, 0x2f,
243 0x00, 0x5c, 0x5d, 0x5e, 0x5f, 0x7a, 0x40, 0x7c,
244 0x7d, 0x7b, 0x60, 0x7e, 0x00, 0x00, 0x00, 0x00,
245 0x00, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47,
246 0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f,
247 0x50, 0x51, 0x53, 0x00, 0x54, 0x55, 0x56, 0x57,
248 0x58, 0x59, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
249 0x00, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67,
250 0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f,
251 0x70, 0x71, 0x73, 0x72, 0x74, 0x75, 0x76, 0x77,
252 0x78, 0x79, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
253 USE_CHARSET (charset, GREEK_ISO8859_7);
254 code = greek[(keysym & 0x7f) - 0x20];
257 case 8: /* Technical */
259 case 9: /* Special */
261 case 10: /* Publishing */
265 case 12: /* Hebrew */
266 USE_CHARSET (charset, HEBREW_ISO8859_8);
267 code = keysym & 0x7f;
270 /* #### This needs to deal with character composition. */
271 USE_CHARSET (charset, THAI_TIS620);
272 code = keysym & 0x7f;
274 case 14: /* Korean Hangul */
276 case 19: /* Latin 9 - ISO8859-15 - unsupported charset. */
278 case 32: /* Currency */
288 return make_char (MAKE_CHAR (charset, code, 0));
290 return make_char (code + 0x80);
294 /* #### The way that keysym correspondence to characters should work:
295 - a Lisp_Event should contain a keysym AND a character slot.
296 - keybindings are tried with the keysym. If no binding can be found,
297 and there is a corresponding character, call self-insert-command.
299 #### Nuke x-iso8859-1.el.
300 #### Nuke the Qascii_character property.
301 #### Nuke Vcharacter_set_property.
304 maybe_define_x_key_as_self_inserting_character (KeySym keysym, Lisp_Object symbol)
306 Lisp_Object character = x_keysym_to_character (keysym);
308 if (CHARP (character))
310 extern Lisp_Object Vcurrent_global_map;
311 extern Lisp_Object Qascii_character;
312 Fput (symbol, Qascii_character, character);
313 if (NILP (Flookup_key (Vcurrent_global_map, symbol, Qnil)))
314 Fdefine_key (Vcurrent_global_map, symbol, Qself_insert_command);
319 x_has_keysym (KeySym keysym, Lisp_Object hash_table, int with_modifiers)
321 KeySym upper_lower[2];
324 if (keysym < 0x80) /* Optimize for ASCII keysyms */
328 xmodmap -e 'keysym NN = scaron'
329 and then press (Shift scaron), X11 will return the different
330 keysym `Scaron', but `xmodmap -pke' might not even mention `Scaron'.
331 So we "register" both `scaron' and `Scaron'. */
332 #ifdef HAVE_XCONVERTCASE
333 XConvertCase (keysym, &upper_lower[0], &upper_lower[1]);
335 upper_lower[0] = upper_lower[1] = keysym;
338 for (j = 0; j < (upper_lower[0] == upper_lower[1] ? 1 : 2); j++)
341 keysym = upper_lower[j];
343 name = XKeysymToString (keysym);
346 /* X guarantees NAME to be in the Host Portable Character Encoding */
347 Lisp_Object sym = x_keysym_to_emacs_keysym (keysym, 0);
348 Lisp_Object new_value = with_modifiers ? Qt : Qsans_modifiers;
349 Lisp_Object old_value = Fgethash (sym, hash_table, Qnil);
351 if (! EQ (old_value, new_value)
352 && ! (EQ (old_value, Qsans_modifiers) &&
355 maybe_define_x_key_as_self_inserting_character (keysym, sym);
356 Fputhash (build_ext_string (name, Qbinary), new_value, hash_table);
357 Fputhash (sym, new_value, hash_table);
364 x_reset_key_mapping (struct device *d)
366 Display *display = DEVICE_X_DISPLAY (d);
367 struct x_device *xd = DEVICE_X_DATA (d);
368 KeySym *keysym, *keysym_end;
369 Lisp_Object hash_table;
370 int key_code_count, keysyms_per_code;
372 if (xd->x_keysym_map)
373 XFree ((char *) xd->x_keysym_map);
374 XDisplayKeycodes (display,
375 &xd->x_keysym_map_min_code,
376 &xd->x_keysym_map_max_code);
377 key_code_count = xd->x_keysym_map_max_code - xd->x_keysym_map_min_code + 1;
379 XGetKeyboardMapping (display, xd->x_keysym_map_min_code, key_code_count,
380 &xd->x_keysym_map_keysyms_per_code);
382 hash_table = xd->x_keysym_map_hash_table;
383 if (HASH_TABLEP (hash_table))
384 Fclrhash (hash_table);
386 xd->x_keysym_map_hash_table = hash_table =
387 make_lisp_hash_table (128, HASH_TABLE_NON_WEAK, HASH_TABLE_EQUAL);
389 for (keysym = xd->x_keysym_map,
390 keysyms_per_code = xd->x_keysym_map_keysyms_per_code,
391 keysym_end = keysym + (key_code_count * keysyms_per_code);
393 keysym += keysyms_per_code)
397 if (keysym[0] == NoSymbol)
400 x_has_keysym (keysym[0], hash_table, 0);
402 for (j = 1; j < keysyms_per_code; j++)
404 if (keysym[j] != keysym[0] &&
405 keysym[j] != NoSymbol)
406 x_has_keysym (keysym[j], hash_table, 1);
412 index_to_name (int indice)
416 case ShiftMapIndex: return "ModShift";
417 case LockMapIndex: return "ModLock";
418 case ControlMapIndex: return "ModControl";
419 case Mod1MapIndex: return "Mod1";
420 case Mod2MapIndex: return "Mod2";
421 case Mod3MapIndex: return "Mod3";
422 case Mod4MapIndex: return "Mod4";
423 case Mod5MapIndex: return "Mod5";
424 default: return "???";
428 /* Boy, I really wish C had local functions... */
429 struct c_doesnt_have_closures /* #### not yet used */
431 int warned_about_overlapping_modifiers;
432 int warned_about_predefined_modifiers;
433 int warned_about_duplicate_modifiers;
442 x_reset_modifier_mapping (struct device *d)
444 Display *display = DEVICE_X_DISPLAY (d);
445 struct x_device *xd = DEVICE_X_DATA (d);
446 int modifier_index, modifier_key, column, mkpm;
447 int warned_about_overlapping_modifiers = 0;
448 int warned_about_predefined_modifiers = 0;
449 int warned_about_duplicate_modifiers = 0;
456 xd->lock_interpretation = 0;
458 if (xd->x_modifier_keymap)
459 XFreeModifiermap (xd->x_modifier_keymap);
461 x_reset_key_mapping (d);
463 xd->x_modifier_keymap = XGetModifierMapping (display);
465 /* Boy, I really wish C had local functions...
468 /* The call to warn_when_safe must be on the same line as the string or
469 make-msgfile won't pick it up properly (the newline doesn't confuse
470 it, but the backslash does). */
472 #define modwarn(name,old,other) \
473 warn_when_safe (Qkey_mapping, Qwarning, "XEmacs: %s (0x%x) generates %s, which is generated by %s.", \
474 name, code, index_to_name (old), other), \
475 warned_about_overlapping_modifiers = 1
477 #define modbarf(name,other) \
478 warn_when_safe (Qkey_mapping, Qwarning, "XEmacs: %s (0x%x) generates %s, which is nonsensical.", \
479 name, code, other), \
480 warned_about_predefined_modifiers = 1
482 #define check_modifier(name,mask) \
483 if ((1<<modifier_index) != mask) \
484 warn_when_safe (Qkey_mapping, Qwarning, "XEmacs: %s (0x%x) generates %s, which is nonsensical.", \
485 name, code, index_to_name (modifier_index)), \
486 warned_about_predefined_modifiers = 1
488 #define store_modifier(name,old) \
489 if (old && old != modifier_index) \
490 warn_when_safe (Qkey_mapping, Qwarning, "XEmacs: %s (0x%x) generates both %s and %s, which is nonsensical.",\
491 name, code, index_to_name (old), \
492 index_to_name (modifier_index)), \
493 warned_about_duplicate_modifiers = 1; \
494 if (modifier_index == ShiftMapIndex) modbarf (name,"ModShift"); \
495 else if (modifier_index == LockMapIndex) modbarf (name,"ModLock"); \
496 else if (modifier_index == ControlMapIndex) modbarf (name,"ModControl"); \
497 else if (sym == XK_Mode_switch) \
498 mode_bit = modifier_index; /* Mode_switch is special, see below... */ \
499 else if (modifier_index == meta_bit && old != meta_bit) \
500 modwarn (name, meta_bit, "Meta"); \
501 else if (modifier_index == super_bit && old != super_bit) \
502 modwarn (name, super_bit, "Super"); \
503 else if (modifier_index == hyper_bit && old != hyper_bit) \
504 modwarn (name, hyper_bit, "Hyper"); \
505 else if (modifier_index == alt_bit && old != alt_bit) \
506 modwarn (name, alt_bit, "Alt"); \
508 old = modifier_index;
510 mkpm = xd->x_modifier_keymap->max_keypermod;
511 for (modifier_index = 0; modifier_index < 8; modifier_index++)
512 for (modifier_key = 0; modifier_key < mkpm; modifier_key++) {
514 for (column = 0; column < 4; column += 2) {
515 KeyCode code = xd->x_modifier_keymap->modifiermap[modifier_index * mkpm
517 KeySym sym = (code ? XKeycodeToKeysym (display, code, column) : 0);
518 if (sym == last_sym) continue;
521 case XK_Mode_switch:store_modifier ("Mode_switch", mode_bit); break;
522 case XK_Meta_L: store_modifier ("Meta_L", meta_bit); break;
523 case XK_Meta_R: store_modifier ("Meta_R", meta_bit); break;
524 case XK_Super_L: store_modifier ("Super_L", super_bit); break;
525 case XK_Super_R: store_modifier ("Super_R", super_bit); break;
526 case XK_Hyper_L: store_modifier ("Hyper_L", hyper_bit); break;
527 case XK_Hyper_R: store_modifier ("Hyper_R", hyper_bit); break;
528 case XK_Alt_L: store_modifier ("Alt_L", alt_bit); break;
529 case XK_Alt_R: store_modifier ("Alt_R", alt_bit); break;
530 case XK_Control_L: check_modifier ("Control_L", ControlMask); break;
531 case XK_Control_R: check_modifier ("Control_R", ControlMask); break;
532 case XK_Shift_L: check_modifier ("Shift_L", ShiftMask); break;
533 case XK_Shift_R: check_modifier ("Shift_R", ShiftMask); break;
534 case XK_Shift_Lock: check_modifier ("Shift_Lock", LockMask);
535 xd->lock_interpretation = XK_Shift_Lock; break;
536 case XK_Caps_Lock: check_modifier ("Caps_Lock", LockMask);
537 xd->lock_interpretation = XK_Caps_Lock; break;
539 /* It probably doesn't make any sense for a modifier bit to be
540 assigned to a key that is not one of the above, but OpenWindows
541 assigns modifier bits to a couple of random function keys for
542 no reason that I can discern, so printing a warning here would
547 #undef store_modifier
548 #undef check_modifier
552 /* If there was no Meta key, then try using the Alt key instead.
553 If there is both a Meta key and an Alt key, then the Alt key
554 is not disturbed and remains an Alt key. */
555 if (! meta_bit && alt_bit)
556 meta_bit = alt_bit, alt_bit = 0;
558 /* mode_bit overrides everything, since it's processed down inside of
559 XLookupString() instead of by us. If Meta and Mode_switch both
560 generate the same modifier bit (which is an error), then we don't
561 interpret that bit as Meta, because we can't make XLookupString()
562 not interpret it as Mode_switch; and interpreting it as both would
566 const char *warn = 0;
567 if (mode_bit == meta_bit) warn = "Meta", meta_bit = 0;
568 else if (mode_bit == hyper_bit) warn = "Hyper", hyper_bit = 0;
569 else if (mode_bit == super_bit) warn = "Super", super_bit = 0;
570 else if (mode_bit == alt_bit) warn = "Alt", alt_bit = 0;
574 (Qkey_mapping, Qwarning,
575 "XEmacs: %s is being used for both Mode_switch and %s.",
576 index_to_name (mode_bit), warn),
577 warned_about_overlapping_modifiers = 1;
582 xd->MetaMask = (meta_bit ? (1 << meta_bit) : 0);
583 xd->HyperMask = (hyper_bit ? (1 << hyper_bit) : 0);
584 xd->SuperMask = (super_bit ? (1 << super_bit) : 0);
585 xd->AltMask = (alt_bit ? (1 << alt_bit) : 0);
586 xd->ModeMask = (mode_bit ? (1 << mode_bit) : 0); /* unused */
589 if (warned_about_overlapping_modifiers)
590 warn_when_safe (Qkey_mapping, Qwarning, "\n"
591 " Two distinct modifier keys (such as Meta and Hyper) cannot generate\n"
592 " the same modifier bit, because Emacs won't be able to tell which\n"
593 " modifier was actually held down when some other key is pressed. It\n"
594 " won't be able to tell Meta-x and Hyper-x apart, for example. Change\n"
595 " one of these keys to use some other modifier bit. If you intend for\n"
596 " these keys to have the same behavior, then change them to have the\n"
597 " same keysym as well as the same modifier bit.");
599 if (warned_about_predefined_modifiers)
600 warn_when_safe (Qkey_mapping, Qwarning, "\n"
601 " The semantics of the modifier bits ModShift, ModLock, and ModControl\n"
602 " are predefined. It does not make sense to assign ModControl to any\n"
603 " keysym other than Control_L or Control_R, or to assign any modifier\n"
604 " bits to the \"control\" keysyms other than ModControl. You can't\n"
605 " turn a \"control\" key into a \"meta\" key (or vice versa) by simply\n"
606 " assigning the key a different modifier bit. You must also make that\n"
607 " key generate an appropriate keysym (Control_L, Meta_L, etc).");
609 /* No need to say anything more for warned_about_duplicate_modifiers. */
611 if (warned_about_overlapping_modifiers || warned_about_predefined_modifiers)
612 warn_when_safe (Qkey_mapping, Qwarning, "\n"
613 " The meanings of the modifier bits Mod1 through Mod5 are determined\n"
614 " by the keysyms used to control those bits. Mod1 does NOT always\n"
615 " mean Meta, although some non-ICCCM-compliant programs assume that.");
619 x_init_modifier_mapping (struct device *d)
621 struct x_device *xd = DEVICE_X_DATA (d);
622 xd->x_keysym_map_hash_table = Qnil;
623 xd->x_keysym_map = NULL;
624 xd->x_modifier_keymap = NULL;
625 x_reset_modifier_mapping (d);
629 x_key_is_modifier_p (KeyCode keycode, struct device *d)
631 struct x_device *xd = DEVICE_X_DATA (d);
635 if (keycode < xd->x_keysym_map_min_code ||
636 keycode > xd->x_keysym_map_max_code)
639 syms = &xd->x_keysym_map [(keycode - xd->x_keysym_map_min_code) *
640 xd->x_keysym_map_keysyms_per_code];
641 for (i = 0; i < xd->x_keysym_map_keysyms_per_code; i++)
642 if (IsModifierKey (syms [i]) ||
643 syms [i] == XK_Mode_switch) /* why doesn't IsModifierKey count this? */
648 /* key-handling code is always ugly. It just ends up working out
651 Here are some pointers:
653 -- DOWN_MASK indicates which modifiers should be treated as "down"
654 when the corresponding upstroke happens. It gets reset for
655 a particular modifier when that modifier goes up, and reset
656 for all modifiers when a non-modifier key is pressed. Example:
658 I press Control-A-Shift and then release Control-A-Shift.
659 I want the Shift key to be sticky but not the Control key.
661 -- LAST_DOWNKEY and RELEASE_TIME are used to keep track of
662 auto-repeat -- see below.
664 -- If a modifier key is sticky, I can unstick it by pressing
665 the modifier key again. */
668 x_handle_sticky_modifiers (XEvent *ev, struct device *d)
674 if (!modifier_keys_are_sticky) /* Optimize for non-sticky modifiers */
677 xd = DEVICE_X_DATA (d);
678 keycode = ev->xkey.keycode;
681 if (keycode < xd->x_keysym_map_min_code ||
682 keycode > xd->x_keysym_map_max_code)
685 if (! ((type == KeyPress || type == KeyRelease) &&
686 x_key_is_modifier_p (keycode, d)))
687 { /* Not a modifier key */
688 Bool key_event_p = (type == KeyPress || type == KeyRelease);
690 if (type == KeyPress && !xd->last_downkey)
691 xd->last_downkey = keycode;
692 else if (type == ButtonPress ||
693 (type == KeyPress && xd->last_downkey &&
694 (keycode != xd->last_downkey ||
695 ev->xkey.time != xd->release_time)))
697 xd->need_to_add_mask = 0;
698 xd->last_downkey = 0;
700 if (type == KeyPress)
701 xd->release_time = 0;
702 if (type == KeyPress || type == ButtonPress)
706 ev->xkey.state |= xd->need_to_add_mask;
708 ev->xbutton.state |= xd->need_to_add_mask;
710 if (type == KeyRelease && keycode == xd->last_downkey)
711 /* If I hold press-and-release the Control key and then press
712 and hold down the right arrow, I want it to auto-repeat
713 Control-Right. On the other hand, if I do the same but
714 manually press the Right arrow a bunch of times, I want
715 to see one Control-Right and then a bunch of Rights.
716 This means that we need to distinguish between an
717 auto-repeated key and a key pressed and released a bunch
720 Naturally, the designers of the X spec didn't see fit
721 to provide an obvious way to distinguish these cases.
722 So we assume that if the release and the next press
723 occur at the same time, the key was actually auto-
724 repeated. Under Open-Windows, at least, this works. */
725 xd->release_time = key_event_p ? ev->xkey.time : ev->xbutton.time;
727 else /* Modifier key pressed */
730 KeySym *syms = &xd->x_keysym_map [(keycode - xd->x_keysym_map_min_code) *
731 xd->x_keysym_map_keysyms_per_code];
733 /* If a non-modifier key was pressed in the middle of a bunch
734 of modifiers, then it unsticks all the modifiers that were
735 previously pressed. We cannot unstick the modifiers until
736 now because we want to check for auto-repeat of the
739 if (xd->last_downkey)
741 xd->last_downkey = 0;
742 xd->need_to_add_mask = 0;
747 if (type == KeyPress) \
749 /* If modifier key is already sticky, \
750 then unstick it. Note that we do \
751 not test down_mask to deal with the \
752 unlikely but possible case that the \
753 modifier key auto-repeats. */ \
754 if (xd->need_to_add_mask & mask) \
756 xd->need_to_add_mask &= ~mask; \
757 xd->down_mask &= ~mask; \
760 xd->down_mask |= mask; \
764 if (xd->down_mask & mask) \
766 xd->down_mask &= ~mask; \
767 xd->need_to_add_mask |= mask; \
772 for (i = 0; i < xd->x_keysym_map_keysyms_per_code; i++)
775 case XK_Control_L: case XK_Control_R: FROB (ControlMask); break;
776 case XK_Shift_L: case XK_Shift_R: FROB (ShiftMask); break;
777 case XK_Meta_L: case XK_Meta_R: FROB (xd->MetaMask); break;
778 case XK_Super_L: case XK_Super_R: FROB (xd->SuperMask); break;
779 case XK_Hyper_L: case XK_Hyper_R: FROB (xd->HyperMask); break;
780 case XK_Alt_L: case XK_Alt_R: FROB (xd->AltMask); break;
787 clear_sticky_modifiers (struct device *d)
789 struct x_device *xd = DEVICE_X_DATA (d);
791 xd->need_to_add_mask = 0;
792 xd->last_downkey = 0;
793 xd->release_time = 0;
798 keysym_obeys_caps_lock_p (KeySym sym, struct device *d)
800 struct x_device *xd = DEVICE_X_DATA (d);
801 /* Eeeeevil hack. Don't apply Caps_Lock to things that aren't alphabetic
802 characters, where "alphabetic" means something more than simply A-Z.
803 That is, if Caps_Lock is down, typing ESC doesn't produce Shift-ESC.
804 But if shift-lock is down, then it does. */
805 if (xd->lock_interpretation == XK_Shift_Lock)
809 ((sym >= XK_A) && (sym <= XK_Z)) ||
810 ((sym >= XK_a) && (sym <= XK_z)) ||
811 ((sym >= XK_Agrave) && (sym <= XK_Odiaeresis)) ||
812 ((sym >= XK_agrave) && (sym <= XK_odiaeresis)) ||
813 ((sym >= XK_Ooblique) && (sym <= XK_Thorn)) ||
814 ((sym >= XK_oslash) && (sym <= XK_thorn));
817 /* called from EmacsFrame.c (actually from Xt itself) when a
818 MappingNotify event is received. In its infinite wisdom, Xt
819 decided that Xt event handlers never get MappingNotify events.
820 O'Reilly Xt Programming Manual 9.1.2 says:
822 MappingNotify is automatically handled by Xt, so it isn't passed
823 to event handlers and you don't need to worry about it.
825 Of course, we DO worry about it, so we need a special translation. */
827 emacs_Xt_mapping_action (Widget w, XEvent* event)
829 struct device *d = get_device_from_display (event->xany.display);
831 if (DEVICE_X_BEING_DELETED (d))
834 /* nyet. Now this is handled by Xt. */
835 XRefreshKeyboardMapping (&event->xmapping);
837 /* xmodmap generates about a billion MappingKeyboard events, followed
838 by a single MappingModifier event, so it might be worthwhile to
839 take extra MappingKeyboard events out of the queue before requesting
840 the current keymap from the server. */
841 switch (event->xmapping.request)
843 case MappingKeyboard: x_reset_key_mapping (d); break;
844 case MappingModifier: x_reset_modifier_mapping (d); break;
845 case MappingPointer: /* Do something here? */ break;
851 /************************************************************************/
852 /* X to Emacs event conversion */
853 /************************************************************************/
856 x_keysym_to_emacs_keysym (KeySym keysym, int simple_p)
859 if (keysym >= XK_exclam && keysym <= XK_asciitilde)
860 /* We must assume that the X keysym numbers for the ASCII graphic
861 characters are the same as their ASCII codes. */
862 return make_char (keysym);
866 /* These would be handled correctly by the default case, but by
867 special-casing them here we don't garbage a string or call
869 case XK_BackSpace: return QKbackspace;
870 case XK_Tab: return QKtab;
871 case XK_Linefeed: return QKlinefeed;
872 case XK_Return: return QKreturn;
873 case XK_Escape: return QKescape;
874 case XK_space: return QKspace;
875 case XK_Delete: return QKdelete;
878 if (simple_p) return Qnil;
879 /* !!#### not Mule-ized */
880 name = XKeysymToString (keysym);
881 if (!name || !name[0])
882 /* This happens if there is a mismatch between the Xlib of
883 XEmacs and the Xlib of the X server...
885 Let's hard-code in some knowledge of common keysyms introduced
886 in recent X11 releases. Snarfed from X11/keysymdef.h
888 Probably we should add some stuff here for X11R6. */
891 case 0xFF95: return KEYSYM ("kp-home");
892 case 0xFF96: return KEYSYM ("kp-left");
893 case 0xFF97: return KEYSYM ("kp-up");
894 case 0xFF98: return KEYSYM ("kp-right");
895 case 0xFF99: return KEYSYM ("kp-down");
896 case 0xFF9A: return KEYSYM ("kp-prior");
897 case 0xFF9B: return KEYSYM ("kp-next");
898 case 0xFF9C: return KEYSYM ("kp-end");
899 case 0xFF9D: return KEYSYM ("kp-begin");
900 case 0xFF9E: return KEYSYM ("kp-insert");
901 case 0xFF9F: return KEYSYM ("kp-delete");
903 case 0x1005FF10: return KEYSYM ("SunF36"); /* labeled F11 */
904 case 0x1005FF11: return KEYSYM ("SunF37"); /* labeled F12 */
908 sprintf (buf, "unknown-keysym-0x%X", (int) keysym);
912 /* If it's got a one-character name, that's good enough. */
914 return make_char (name[0]);
916 /* If it's in the "Keyboard" character set, downcase it.
917 The case of those keysyms is too totally random for us to
918 force anyone to remember them.
919 The case of the other character sets is significant, however.
921 if ((((unsigned int) keysym) & (~0x1FF)) == ((unsigned int) 0xFE00))
925 for (s1 = name, s2 = buf; *s1; s1++, s2++) {
929 *s2 = tolower (* (unsigned char *) s1);
935 return KEYSYM (name);
940 x_to_emacs_keysym (XKeyPressedEvent *event, int simple_p)
941 /* simple_p means don't try too hard (ASCII only) */
948 char *bufptr = buffer;
949 int bufsiz = sizeof (buffer);
952 XIC xic = FRAME_X_XIC (x_any_window_to_frame
953 (get_device_from_display (event->display),
955 #endif /* XIM_XLIB */
956 #endif /* HAVE_XIM */
958 /* We use XLookupString if we're not using XIM, or are using
959 XIM_XLIB but input context creation failed. */
960 #if ! (defined (HAVE_XIM) && defined (XIM_MOTIF))
961 #if defined (HAVE_XIM) && defined (XIM_XLIB)
963 #endif /* XIM_XLIB */
965 /* Apparently it's necessary to specify a dummy here (rather
966 than passing in 0) to avoid crashes on German IRIX */
968 XLookupString (event, dummy, 200, &keysym, 0);
969 return (IsModifierKey (keysym) || keysym == XK_Mode_switch )
970 ? Qnil : x_keysym_to_emacs_keysym (keysym, simple_p);
972 #endif /* ! XIM_MOTIF */
975 Lookup_String: /* Come-From XBufferOverflow */
977 len = XmImMbLookupString (XtWindowToWidget (event->display, event->window),
978 event, bufptr, bufsiz, &keysym, &status);
981 len = XmbLookupString (xic, event, bufptr, bufsiz, &keysym, &status);
982 #endif /* HAVE_XIM */
985 if (x_debug_events > 0)
987 stderr_out (" status=");
988 #define print_status_when(S) if (status == S) stderr_out (#S)
989 print_status_when (XLookupKeySym);
990 print_status_when (XLookupBoth);
991 print_status_when (XLookupChars);
992 print_status_when (XLookupNone);
993 print_status_when (XBufferOverflow);
995 if (status == XLookupKeySym || status == XLookupBoth)
996 stderr_out (" keysym=%s", XKeysymToString (keysym));
997 if (status == XLookupChars || status == XLookupBoth)
1002 stderr_out (" chars=\"");
1003 for (j=0; j<len; j++)
1004 stderr_out ("%c", bufptr[j]);
1007 else if (bufptr[0] <= 32 || bufptr[0] >= 127)
1008 stderr_out (" char=0x%x", bufptr[0]);
1010 stderr_out (" char=%c", bufptr[0]);
1014 #endif /* DEBUG_XEMACS */
1020 return (IsModifierKey (keysym) || keysym == XK_Mode_switch )
1021 ? Qnil : x_keysym_to_emacs_keysym (keysym, simple_p);
1025 /* Generate multiple emacs events */
1026 struct device *d = get_device_from_display (event->display);
1028 Lisp_Object instream, fb_instream;
1030 struct gcpro gcpro1, gcpro2;
1032 fb_instream = make_fixed_buffer_input_stream (bufptr, len);
1034 /* #### Use Fget_coding_system (Vcomposed_input_coding_system) */
1036 make_decoding_input_stream (XLSTREAM (fb_instream),
1037 Fget_coding_system (Qundecided));
1039 istr = XLSTREAM (instream);
1041 GCPRO2 (instream, fb_instream);
1042 while ((ch = Lstream_get_emchar (istr)) != EOF)
1044 Lisp_Object emacs_event = Fmake_event (Qnil, Qnil);
1045 Lisp_Event *ev = XEVENT (emacs_event);
1046 ev->channel = DEVICE_CONSOLE (d);
1047 ev->event_type = key_press_event;
1048 ev->timestamp = event->time;
1049 ev->event.key.modifiers = 0;
1050 ev->event.key.keysym = make_char (ch);
1051 enqueue_Xt_dispatch_event (emacs_event);
1053 Lstream_close (istr);
1055 Lstream_delete (istr);
1056 Lstream_delete (XLSTREAM (fb_instream));
1059 case XLookupNone: return Qnil;
1060 case XBufferOverflow:
1061 bufptr = (char *) alloca (len+1);
1065 return Qnil; /* not reached */
1066 #endif /* HAVE_XIM */
1070 set_last_server_timestamp (struct device *d, XEvent *x_event)
1073 switch (x_event->type)
1076 case KeyRelease: t = x_event->xkey.time; break;
1078 case ButtonRelease: t = x_event->xbutton.time; break;
1080 case LeaveNotify: t = x_event->xcrossing.time; break;
1081 case MotionNotify: t = x_event->xmotion.time; break;
1082 case PropertyNotify: t = x_event->xproperty.time; break;
1083 case SelectionClear: t = x_event->xselectionclear.time; break;
1084 case SelectionRequest: t = x_event->xselectionrequest.time; break;
1085 case SelectionNotify: t = x_event->xselection.time; break;
1088 DEVICE_X_LAST_SERVER_TIMESTAMP (d) = t;
1092 x_event_to_emacs_event (XEvent *x_event, Lisp_Event *emacs_event)
1094 Display *display = x_event->xany.display;
1095 struct device *d = get_device_from_display (display);
1096 struct x_device *xd = DEVICE_X_DATA (d);
1098 if (DEVICE_X_BEING_DELETED (d))
1099 /* #### Uh, is this 0 correct? */
1102 set_last_server_timestamp (d, x_event);
1104 switch (x_event->type)
1107 x_handle_sticky_modifiers (x_event, d);
1115 int shift_p, lock_p;
1116 Bool key_event_p = (x_event->type == KeyPress);
1117 unsigned int *state =
1118 key_event_p ? &x_event->xkey.state : &x_event->xbutton.state;
1120 /* If this is a synthetic KeyPress or Button event, and the user
1121 has expressed a disinterest in this security hole, then drop
1124 ? x_event->xkey.send_event
1125 : x_event->xbutton.send_event)
1126 #ifdef EXTERNAL_WIDGET
1127 /* ben: events get sent to an ExternalShell using XSendEvent.
1128 This is not a perfect solution. */
1129 && !FRAME_X_EXTERNAL_WINDOW_P
1130 (x_any_window_to_frame (d, x_event->xany.window))
1132 && !x_allow_sendevents)
1135 DEVICE_X_MOUSE_TIMESTAMP (d) =
1136 DEVICE_X_GLOBAL_MOUSE_TIMESTAMP (d) =
1137 key_event_p ? x_event->xkey.time : x_event->xbutton.time;
1139 x_handle_sticky_modifiers (x_event, d);
1141 if (*state & ControlMask) modifiers |= XEMACS_MOD_CONTROL;
1142 if (*state & xd->MetaMask) modifiers |= XEMACS_MOD_META;
1143 if (*state & xd->SuperMask) modifiers |= XEMACS_MOD_SUPER;
1144 if (*state & xd->HyperMask) modifiers |= XEMACS_MOD_HYPER;
1145 if (*state & xd->AltMask) modifiers |= XEMACS_MOD_ALT;
1147 /* Ignore the Caps_Lock key if:
1148 - any other modifiers are down, so that Caps_Lock doesn't
1149 turn C-x into C-X, which would suck.
1150 - the event was a mouse event. */
1151 if (modifiers || ! key_event_p)
1152 *state &= (~LockMask);
1154 shift_p = *state & ShiftMask;
1155 lock_p = *state & LockMask;
1157 if (shift_p || lock_p)
1158 modifiers |= XEMACS_MOD_SHIFT;
1163 XKeyEvent *ev = &x_event->xkey;
1164 /* This used to compute the frame from the given X window and
1165 store it here, but we really don't care about the frame. */
1166 emacs_event->channel = DEVICE_CONSOLE (d);
1167 keysym = x_to_emacs_keysym (&x_event->xkey, 0);
1169 /* If the emacs keysym is nil, then that means that the X
1170 keysym was either a Modifier or NoSymbol, which
1171 probably means that we're in the midst of reading a
1172 Multi_key sequence, or a "dead" key prefix, or XIM
1173 input. Ignore it. */
1177 /* More Caps_Lock garbage: Caps_Lock should *only* add the
1178 shift modifier to two-case keys (that is, A-Z and
1179 related characters). So at this point (after looking up
1180 the keysym) if the keysym isn't a dual-case alphabetic,
1181 and if the caps lock key was down but the shift key
1182 wasn't, then turn off the shift modifier. Gag barf */
1183 /* #### type lossage: assuming equivalence of emacs and
1185 /* !!#### maybe fix for Mule */
1186 if (lock_p && !shift_p &&
1187 ! (CHAR_OR_CHAR_INTP (keysym)
1188 && keysym_obeys_caps_lock_p
1189 ((KeySym) XCHAR_OR_CHAR_INT (keysym), d)))
1190 modifiers &= (~XEMACS_MOD_SHIFT);
1192 /* If this key contains two distinct keysyms, that is,
1193 "shift" generates a different keysym than the
1194 non-shifted key, then don't apply the shift modifier
1195 bit: it's implicit. Otherwise, if there would be no
1196 other way to tell the difference between the shifted
1197 and unshifted version of this key, apply the shift bit.
1198 Non-graphics, like Backspace and F1 get the shift bit
1199 in the modifiers slot. Neither the characters "a",
1200 "A", "2", nor "@" normally have the shift bit set.
1201 However, "F1" normally does. */
1202 if (modifiers & XEMACS_MOD_SHIFT)
1204 int Mode_switch_p = *state & xd->ModeMask;
1205 KeySym bot = XLookupKeysym (ev, Mode_switch_p ? 2 : 0);
1206 KeySym top = XLookupKeysym (ev, Mode_switch_p ? 3 : 1);
1207 if (top && bot && top != bot)
1208 modifiers &= ~XEMACS_MOD_SHIFT;
1210 emacs_event->event_type = key_press_event;
1211 emacs_event->timestamp = ev->time;
1212 emacs_event->event.key.modifiers = modifiers;
1213 emacs_event->event.key.keysym = keysym;
1215 else /* Mouse press/release event */
1217 XButtonEvent *ev = &x_event->xbutton;
1218 struct frame *frame = x_window_to_frame (d, ev->window);
1221 return 0; /* not for us */
1222 XSETFRAME (emacs_event->channel, frame);
1224 emacs_event->event_type = (x_event->type == ButtonPress) ?
1225 button_press_event : button_release_event;
1227 emacs_event->event.button.modifiers = modifiers;
1228 emacs_event->timestamp = ev->time;
1229 emacs_event->event.button.button = ev->button;
1230 emacs_event->event.button.x = ev->x;
1231 emacs_event->event.button.y = ev->y;
1232 /* because we don't seem to get a FocusIn event for button clicks
1233 when a widget-glyph is selected we will assume that we want the
1234 focus if a button gets pressed. */
1235 if (x_event->type == ButtonPress)
1236 handle_focus_event_1 (frame, 1);
1243 XMotionEvent *ev = &x_event->xmotion;
1244 struct frame *frame = x_window_to_frame (d, ev->window);
1246 XMotionEvent event2;
1249 return 0; /* not for us */
1251 /* We use MotionHintMask, so we will get only one motion event
1252 until the next time we call XQueryPointer or the user
1253 clicks the mouse. So call XQueryPointer now (meaning that
1254 the event will be in sync with the server just before
1255 Fnext_event() returns). If the mouse is still in motion,
1256 then the server will immediately generate exactly one more
1257 motion event, which will be on the queue waiting for us
1258 next time around. */
1260 if (XQueryPointer (event2.display, event2.window,
1261 &event2.root, &event2.subwindow,
1262 &event2.x_root, &event2.y_root,
1263 &event2.x, &event2.y,
1265 ev = &event2; /* only one structure copy */
1267 DEVICE_X_MOUSE_TIMESTAMP (d) = ev->time;
1269 XSETFRAME (emacs_event->channel, frame);
1270 emacs_event->event_type = pointer_motion_event;
1271 emacs_event->timestamp = ev->time;
1272 emacs_event->event.motion.x = ev->x;
1273 emacs_event->event.motion.y = ev->y;
1274 if (ev->state & ShiftMask) modifiers |= XEMACS_MOD_SHIFT;
1275 if (ev->state & ControlMask) modifiers |= XEMACS_MOD_CONTROL;
1276 if (ev->state & xd->MetaMask) modifiers |= XEMACS_MOD_META;
1277 if (ev->state & xd->SuperMask) modifiers |= XEMACS_MOD_SUPER;
1278 if (ev->state & xd->HyperMask) modifiers |= XEMACS_MOD_HYPER;
1279 if (ev->state & xd->AltMask) modifiers |= XEMACS_MOD_ALT;
1280 /* Currently ignores Shift_Lock but probably shouldn't
1281 (but it definitely should ignore Caps_Lock). */
1282 emacs_event->event.motion.modifiers = modifiers;
1288 /* Patch bogus TAKE_FOCUS messages from MWM; CurrentTime is
1289 passed as the timestamp of the TAKE_FOCUS, which the ICCCM
1290 explicitly prohibits. */
1291 XClientMessageEvent *ev = &x_event->xclient;
1292 #ifdef HAVE_OFFIX_DND
1293 if (DndIsDropMessage(x_event))
1297 unsigned int button=0;
1298 struct frame *frame = x_any_window_to_frame (d, ev->window);
1300 unsigned long size, dtype;
1301 Lisp_Object l_type = Qnil, l_data = Qnil;
1302 Lisp_Object l_dndlist = Qnil, l_item = Qnil;
1303 struct gcpro gcpro1, gcpro2, gcpro3, gcpro4;
1305 GCPRO4 (l_type, l_data, l_dndlist, l_item);
1308 return 0; /* not for us */
1309 XSETFRAME (emacs_event->channel, frame);
1311 emacs_event->event_type = misc_user_event;
1312 emacs_event->timestamp = DEVICE_X_LAST_SERVER_TIMESTAMP (d);
1314 state=DndDragButtons(x_event);
1316 if (state & ShiftMask) modifiers |= XEMACS_MOD_SHIFT;
1317 if (state & ControlMask) modifiers |= XEMACS_MOD_CONTROL;
1318 if (state & xd->MetaMask) modifiers |= XEMACS_MOD_META;
1319 if (state & xd->SuperMask) modifiers |= XEMACS_MOD_SUPER;
1320 if (state & xd->HyperMask) modifiers |= XEMACS_MOD_HYPER;
1321 if (state & xd->AltMask) modifiers |= XEMACS_MOD_ALT;
1323 if (state & Button5Mask) button = Button5;
1324 if (state & Button4Mask) button = Button4;
1325 if (state & Button3Mask) button = Button3;
1326 if (state & Button2Mask) button = Button2;
1327 if (state & Button1Mask) button = Button1;
1329 emacs_event->event.misc.modifiers = modifiers;
1330 emacs_event->event.misc.button = button;
1332 DndDropCoordinates(FRAME_X_TEXT_WIDGET(frame), x_event,
1333 &(emacs_event->event.misc.x),
1334 &(emacs_event->event.misc.y) );
1336 DndGetData(x_event,&data,&size);
1338 dtype=DndDataType(x_event);
1341 case DndFiles: /* null terminated strings, end null */
1348 len = strlen ((char*)data);
1349 hurl = dnd_url_hexify_string ((char *)data, "file:");
1350 l_item = make_string ((Bufbyte *)hurl, strlen (hurl));
1351 l_dndlist = Fcons (l_item, l_dndlist);
1355 l_type = Qdragdrop_URL;
1359 l_type = Qdragdrop_MIME;
1360 l_dndlist = list1 ( list3 ( list1 ( make_string ((Bufbyte *)"text/plain", 10) ),
1361 make_string ((Bufbyte *)"8bit", 4),
1362 make_ext_string ((Extbyte *)data,
1363 strlen((char *)data),
1367 /* we have to parse this in some way to extract
1368 content-type and params (in the tm way) and
1370 OR: if data is string, let tm do the job
1371 if data is list[2], give the first two
1374 l_type = Qdragdrop_MIME;
1375 l_dndlist = list1 ( make_ext_string ((Extbyte *)data,
1376 strlen((char *)data),
1384 char *hurl = dnd_url_hexify_string ((char *) data, "file:");
1386 l_dndlist = list1 ( make_string ((Bufbyte *)hurl,
1388 l_type = Qdragdrop_URL;
1394 /* as it is a real URL it should already be escaped
1395 and escaping again will break them (cause % is unsave) */
1396 l_dndlist = list1 ( make_ext_string ((Extbyte *)data,
1397 strlen ((char *)data),
1399 l_type = Qdragdrop_URL;
1401 default: /* Unknown, RawData and any other type */
1402 l_dndlist = list1 ( list3 ( list1 ( make_string ((Bufbyte *)"application/octet-stream", 24) ),
1403 make_string ((Bufbyte *)"8bit", 4),
1404 make_ext_string ((Extbyte *)data,
1407 l_type = Qdragdrop_MIME;
1411 emacs_event->event.misc.function = Qdragdrop_drop_dispatch;
1412 emacs_event->event.misc.object = Fcons (l_type, l_dndlist);
1418 #endif /* HAVE_OFFIX_DND */
1419 if (ev->message_type == DEVICE_XATOM_WM_PROTOCOLS (d)
1420 && (Atom) (ev->data.l[0]) == DEVICE_XATOM_WM_TAKE_FOCUS (d)
1421 && (Atom) (ev->data.l[1]) == 0)
1423 ev->data.l[1] = DEVICE_X_LAST_SERVER_TIMESTAMP (d);
1428 default: /* it's a magic event */
1430 struct frame *frame;
1432 XEvent *x_event_copy = &emacs_event->event.magic.underlying_x_event;
1434 #define FROB(event_member, window_member) \
1435 x_event_copy->event_member = x_event->event_member; \
1436 w = x_event->event_member.window_member
1438 switch (x_event->type)
1440 case SelectionRequest: FROB(xselectionrequest, owner); break;
1441 case SelectionClear: FROB(xselectionclear, window); break;
1442 case SelectionNotify: FROB(xselection, requestor); break;
1443 case PropertyNotify: FROB(xproperty, window); break;
1444 case ClientMessage: FROB(xclient, window); break;
1445 case ConfigureNotify: FROB(xconfigure, window); break;
1447 case GraphicsExpose: FROB(xexpose, window); break;
1449 case UnmapNotify: FROB(xmap, window); break;
1451 case LeaveNotify: FROB(xcrossing, window); break;
1453 case FocusOut: FROB(xfocus, window); break;
1454 case VisibilityNotify: FROB(xvisibility, window); break;
1455 case CreateNotify: FROB(xcreatewindow, window); break;
1457 w = x_event->xany.window;
1458 *x_event_copy = *x_event;
1462 frame = x_any_window_to_frame (d, w);
1467 emacs_event->event_type = magic_event;
1468 XSETFRAME (emacs_event->channel, frame);
1478 /************************************************************************/
1479 /* magic-event handling */
1480 /************************************************************************/
1483 handle_focus_event_1 (struct frame *f, int in_p)
1485 #if XtSpecificationRelease > 5
1486 Widget focus_widget = XtGetKeyboardFocusWidget (FRAME_X_TEXT_WIDGET (f));
1489 XIM_focus_event (f, in_p);
1490 #endif /* HAVE_XIM */
1491 /* On focus change, clear all memory of sticky modifiers
1492 to avoid non-intuitive behavior. */
1493 clear_sticky_modifiers (XDEVICE (FRAME_DEVICE (f)));
1495 /* We don't want to handle the focus change now, because we might
1496 be in an accept-process-output, sleep-for, or sit-for. So
1499 Actually, we half handle it: we handle it as far as changing the
1500 box cursor for redisplay, but we don't call any hooks or do any
1501 select-frame stuff until after the sit-for.
1503 Unfortunately native widgets break the model because they grab
1504 the keyboard focus and nothing sets it back again. I cannot find
1505 any reasonable way to do this elsewhere so we assert here that
1506 the keyboard focus is on the emacs text widget. Menus and dialogs
1507 do this in their selection callback, but we don't want that since
1508 a button having focus is legitimate. An edit field having focus
1509 is mandatory. Weirdly you get a FocusOut event when you click in
1510 a widget-glyph but you don't get a correspondng FocusIn when you
1511 click in the frame. Why is this? */
1513 #if XtSpecificationRelease > 5
1514 && FRAME_X_TEXT_WIDGET (f) != focus_widget
1518 lw_set_keyboard_focus (FRAME_X_SHELL_WIDGET (f),
1519 FRAME_X_TEXT_WIDGET (f));
1521 /* do the generic event-stream stuff. */
1525 struct gcpro gcpro1;
1528 conser = Fcons (frm, Fcons (FRAME_DEVICE (f), in_p ? Qt : Qnil));
1530 emacs_handle_focus_change_preliminary (conser);
1531 enqueue_magic_eval_event (emacs_handle_focus_change_final,
1537 /* This is called from the external-widget code */
1539 void emacs_Xt_handle_focus_event (XEvent *event);
1541 emacs_Xt_handle_focus_event (XEvent *event)
1543 struct device *d = get_device_from_display (event->xany.display);
1546 if (DEVICE_X_BEING_DELETED (d))
1550 * It's curious that we're using x_any_window_to_frame() instead
1551 * of x_window_to_frame(). I don't know what the impact of this is.
1553 f = x_any_window_to_frame (d, event->xfocus.window);
1555 /* focus events are sometimes generated just before
1556 a frame is destroyed. */
1558 handle_focus_event_1 (f, event->type == FocusIn);
1561 /* both MapNotify and VisibilityNotify can cause this
1562 JV is_visible has the same semantics as f->visible*/
1564 change_frame_visibility (struct frame *f, int is_visible)
1568 XSETFRAME (frame, f);
1570 if (!FRAME_VISIBLE_P (f) && is_visible)
1572 FRAME_VISIBLE_P (f) = is_visible;
1573 /* This improves the double flicker when uniconifying a frame
1574 some. A lot of it is not showing a buffer which has changed
1575 while the frame was iconified. To fix it further requires
1576 the good 'ol double redisplay structure. */
1577 MARK_FRAME_WINDOWS_STRUCTURE_CHANGED (f);
1578 va_run_hook_with_args (Qmap_frame_hook, 1, frame);
1580 else if (FRAME_VISIBLE_P (f) && !is_visible)
1582 FRAME_VISIBLE_P (f) = 0;
1583 va_run_hook_with_args (Qunmap_frame_hook, 1, frame);
1585 else if (FRAME_VISIBLE_P (f) * is_visible < 0)
1587 FRAME_VISIBLE_P(f) = - FRAME_VISIBLE_P(f);
1588 if (FRAME_REPAINT_P(f))
1589 MARK_FRAME_WINDOWS_STRUCTURE_CHANGED (f);
1590 va_run_hook_with_args (Qmap_frame_hook, 1, frame);
1595 handle_map_event (struct frame *f, XEvent *event)
1599 XSETFRAME (frame, f);
1600 if (event->type == MapNotify)
1602 XWindowAttributes xwa;
1604 /* Bleagh!!!!!! Apparently some window managers (e.g. MWM)
1605 send synthetic MapNotify events when a window is first
1606 created, EVEN IF IT'S CREATED ICONIFIED OR INVISIBLE.
1607 Or something like that. We initially tried a different
1608 solution below, but that ran into a different window-
1611 It seems that the only reliable way is to treat a
1612 MapNotify event as a "hint" that the window might or
1613 might not be visible, and check explicitly. */
1615 XGetWindowAttributes (event->xany.display, event->xmap.window,
1617 if (xwa.map_state != IsViewable)
1619 /* Calling Fframe_iconified_p is the only way we have to
1620 correctly update FRAME_ICONIFIED_P */
1621 Fframe_iconified_p (frame);
1625 FRAME_X_TOTALLY_VISIBLE_P (f) = 1;
1627 /* Bleagh again!!!! We initially tried the following hack
1628 around the MWM problem, but it turns out that TWM
1629 has a race condition when you un-iconify, where it maps
1630 the window and then tells the server that the window
1631 is un-iconified. Usually, XEmacs wakes up between
1632 those two occurrences, and thus thinks that un-iconified
1633 windows are still iconified.
1635 Ah, the joys of X. */
1637 /* By Emacs definition, a frame that is iconified is not
1638 visible. Marking a frame as visible will automatically cause
1639 frame-iconified-p to return nil, regardless of whether the
1640 frame is actually iconified. Therefore, we have to ignore
1641 MapNotify events on iconified frames. (It's not obvious
1642 to me why these are being sent, but it happens at startup
1643 with frames that are initially iconified; perhaps they are
1644 synthetic MapNotify events coming from the window manager.)
1645 Note that `frame-iconified-p' queries the server
1646 to determine whether the frame is currently iconified,
1647 rather than consulting some internal (and likely
1648 inaccurate) state flag. Therefore, ignoring the MapNotify
1650 if (!FRAME_VISIBLE_P (f) && NILP (Fframe_iconified_p (frame)))
1652 change_frame_visibility (f, 1);
1656 FRAME_X_TOTALLY_VISIBLE_P (f) = 0;
1657 change_frame_visibility (f, 0);
1658 /* Calling Fframe_iconified_p is the only way we have to
1659 correctly update FRAME_ICONIFIED_P */
1660 Fframe_iconified_p (frame);
1665 handle_client_message (struct frame *f, XEvent *event)
1667 struct device *d = XDEVICE (FRAME_DEVICE (f));
1670 XSETFRAME (frame, f);
1672 if (event->xclient.message_type == DEVICE_XATOM_WM_PROTOCOLS (d) &&
1673 (Atom) (event->xclient.data.l[0]) == DEVICE_XATOM_WM_DELETE_WINDOW (d))
1675 /* WM_DELETE_WINDOW is a misc-user event, but other ClientMessages,
1676 such as WM_TAKE_FOCUS, are eval events. That's because delete-window
1677 was probably executed with a mouse click, while the others could
1678 have been sent as a result of mouse motion or some other implicit
1679 action. (Call this a "heuristic"...) The reason for caring about
1680 this is so that clicking on the close-box will make emacs prompt
1681 using a dialog box instead of the minibuffer if there are unsaved
1684 enqueue_misc_user_event (frame, Qeval,
1685 list3 (Qdelete_frame, frame, Qt));
1687 else if (event->xclient.message_type == DEVICE_XATOM_WM_PROTOCOLS (d) &&
1688 (Atom) event->xclient.data.l[0] == DEVICE_XATOM_WM_TAKE_FOCUS (d))
1690 handle_focus_event_1 (f, 1);
1692 /* If there is a dialog box up, focus on it.
1694 #### Actually, we're raising it too, which is wrong. We should
1695 #### just focus on it, but lwlib doesn't currently give us an
1696 #### easy way to do that. This should be fixed.
1698 unsigned long take_focus_timestamp = event->xclient.data.l[1];
1699 Widget widget = lw_raise_all_pop_up_widgets ();
1702 /* kludge: raise_all returns bottommost widget, but we really
1703 want the topmost. So just raise it for now. */
1704 XMapRaised (XtDisplay (widget), XtWindow (widget));
1705 /* Grab the focus with the timestamp of the TAKE_FOCUS. */
1706 XSetInputFocus (XtDisplay (widget), XtWindow (widget),
1707 RevertToParent, take_focus_timestamp);
1714 emacs_Xt_force_event_pending (struct frame* f)
1718 Display* dpy = DEVICE_X_DISPLAY (XDEVICE (FRAME_DEVICE (f)));
1719 event.xclient.type = ClientMessage;
1720 event.xclient.display = dpy;
1721 event.xclient.message_type = XInternAtom (dpy, "BumpQueue", False);
1722 event.xclient.format = 32;
1723 event.xclient.window = 0;
1725 /* Send the drop message */
1726 XSendEvent(dpy, XtWindow (FRAME_X_SHELL_WIDGET (f)),
1727 True, NoEventMask, &event);
1728 /* Force event pending to check the X queue. */
1729 quit_check_signal_tick_count++;
1733 emacs_Xt_handle_magic_event (Lisp_Event *emacs_event)
1735 /* This function can GC */
1736 XEvent *event = &emacs_event->event.magic.underlying_x_event;
1737 struct frame *f = XFRAME (EVENT_CHANNEL (emacs_event));
1739 if (!FRAME_LIVE_P (f) || DEVICE_X_BEING_DELETED (XDEVICE (FRAME_DEVICE (f))))
1742 switch (event->type)
1744 case SelectionRequest:
1745 x_handle_selection_request (&event->xselectionrequest);
1748 case SelectionClear:
1749 x_handle_selection_clear (&event->xselectionclear);
1752 case SelectionNotify:
1753 x_handle_selection_notify (&event->xselection);
1756 case PropertyNotify:
1757 x_handle_property_notify (&event->xproperty);
1761 if (!check_for_ignored_expose (f, event->xexpose.x, event->xexpose.y,
1762 event->xexpose.width, event->xexpose.height)
1764 !find_matching_subwindow (f, event->xexpose.x, event->xexpose.y,
1765 event->xexpose.width, event->xexpose.height))
1766 x_redraw_exposed_area (f, event->xexpose.x, event->xexpose.y,
1767 event->xexpose.width, event->xexpose.height);
1770 case GraphicsExpose: /* This occurs when an XCopyArea's source area was
1771 obscured or not available. */
1772 x_redraw_exposed_area (f, event->xexpose.x, event->xexpose.y,
1773 event->xexpose.width, event->xexpose.height);
1778 handle_map_event (f, event);
1782 if (event->xcrossing.detail != NotifyInferior)
1786 XSETFRAME (frame, f);
1787 /* FRAME_X_MOUSE_P (f) = 1; */
1788 va_run_hook_with_args (Qmouse_enter_frame_hook, 1, frame);
1793 if (event->xcrossing.detail != NotifyInferior)
1797 XSETFRAME (frame, f);
1798 /* FRAME_X_MOUSE_P (f) = 0; */
1799 va_run_hook_with_args (Qmouse_leave_frame_hook, 1, frame);
1806 #ifdef EXTERNAL_WIDGET
1807 /* External widget lossage: Ben said:
1808 YUCK. The only way to make focus changes work properly is to
1809 completely ignore all FocusIn/FocusOut events and depend only
1810 on notifications from the ExternalClient widget. */
1811 if (FRAME_X_EXTERNAL_WINDOW_P (f))
1814 handle_focus_event_1 (f, event->type == FocusIn);
1818 handle_client_message (f, event);
1821 case VisibilityNotify: /* window visibility has changed */
1822 if (event->xvisibility.window == XtWindow (FRAME_X_SHELL_WIDGET (f)))
1824 FRAME_X_TOTALLY_VISIBLE_P (f) =
1825 (event->xvisibility.state == VisibilityUnobscured);
1826 /* Note that the fvwm pager only sends VisibilityNotify when
1827 changing pages. Is this all we need to do ? JV */
1828 /* Nope. We must at least trigger a redisplay here.
1829 Since this case seems similar to MapNotify, I've
1830 factored out some code to change_frame_visibility().
1831 This triggers the necessary redisplay and runs
1832 (un)map-frame-hook. - dkindred@cs.cmu.edu */
1833 /* Changed it again to support the tristate visibility flag */
1834 change_frame_visibility (f, (event->xvisibility.state
1835 != VisibilityFullyObscured) ? 1 : -1);
1839 case ConfigureNotify:
1841 XIM_SetGeometry (f);
1854 /************************************************************************/
1855 /* timeout events */
1856 /************************************************************************/
1858 static int timeout_id_tick;
1860 /* Xt interval id's might not fit into an int (they're pointers, as it
1861 happens), so we need to provide a conversion list. */
1863 static struct Xt_timeout
1866 XtIntervalId interval_id;
1867 struct Xt_timeout *next;
1868 } *pending_timeouts, *completed_timeouts;
1870 static struct Xt_timeout_blocktype
1872 Blocktype_declare (struct Xt_timeout);
1873 } *the_Xt_timeout_blocktype;
1875 /* called by XtAppNextEvent() */
1877 Xt_timeout_callback (XtPointer closure, XtIntervalId *id)
1879 struct Xt_timeout *timeout = (struct Xt_timeout *) closure;
1880 struct Xt_timeout *t2 = pending_timeouts;
1881 /* Remove this one from the list of pending timeouts */
1883 pending_timeouts = pending_timeouts->next;
1886 while (t2->next && t2->next != timeout) t2 = t2->next;
1888 t2->next = t2->next->next;
1890 /* Add this one to the list of completed timeouts */
1891 timeout->next = completed_timeouts;
1892 completed_timeouts = timeout;
1896 emacs_Xt_add_timeout (EMACS_TIME thyme)
1898 struct Xt_timeout *timeout = Blocktype_alloc (the_Xt_timeout_blocktype);
1899 EMACS_TIME current_time;
1902 timeout->id = timeout_id_tick++;
1903 timeout->next = pending_timeouts;
1904 pending_timeouts = timeout;
1905 EMACS_GET_TIME (current_time);
1906 EMACS_SUB_TIME (thyme, thyme, current_time);
1907 milliseconds = EMACS_SECS (thyme) * 1000 +
1908 EMACS_USECS (thyme) / 1000;
1909 if (milliseconds < 1)
1911 timeout->interval_id = XtAppAddTimeOut (Xt_app_con, milliseconds,
1912 Xt_timeout_callback,
1913 (XtPointer) timeout);
1918 emacs_Xt_remove_timeout (int id)
1920 struct Xt_timeout *timeout, *t2;
1924 /* Find the timeout on the list of pending ones, if it's still there. */
1925 if (pending_timeouts)
1927 if (id == pending_timeouts->id)
1929 timeout = pending_timeouts;
1930 pending_timeouts = pending_timeouts->next;
1934 t2 = pending_timeouts;
1935 while (t2->next && t2->next->id != id) t2 = t2->next;
1936 if ( t2->next) /*found it */
1939 t2->next = t2->next->next;
1942 /* if it was pending, we have removed it from the list */
1944 XtRemoveTimeOut (timeout->interval_id);
1947 /* It could be that the Xt call back was already called but we didn't convert
1948 into an Emacs event yet */
1949 if (!timeout && completed_timeouts)
1951 /* Code duplication! */
1952 if (id == completed_timeouts->id)
1954 timeout = completed_timeouts;
1955 completed_timeouts = completed_timeouts->next;
1959 t2 = completed_timeouts;
1960 while (t2->next && t2->next->id != id) t2 = t2->next;
1961 if ( t2->next) /*found it */
1964 t2->next = t2->next->next;
1969 /* If we found the thing on the lists of timeouts,
1970 and removed it, deallocate
1973 Blocktype_free (the_Xt_timeout_blocktype, timeout);
1977 Xt_timeout_to_emacs_event (Lisp_Event *emacs_event)
1979 struct Xt_timeout *timeout = completed_timeouts;
1981 completed_timeouts = completed_timeouts->next;
1982 emacs_event->event_type = timeout_event;
1983 /* timeout events have nil as channel */
1984 emacs_event->timestamp = 0; /* #### wrong!! */
1985 emacs_event->event.timeout.interval_id = timeout->id;
1986 emacs_event->event.timeout.function = Qnil;
1987 emacs_event->event.timeout.object = Qnil;
1988 Blocktype_free (the_Xt_timeout_blocktype, timeout);
1992 /************************************************************************/
1993 /* process and tty events */
1994 /************************************************************************/
1996 struct what_is_ready_closure
2003 static Lisp_Object *filedesc_with_input;
2004 static struct what_is_ready_closure **filedesc_to_what_closure;
2007 init_what_input_once (void)
2011 filedesc_with_input = xnew_array (Lisp_Object, MAXDESC);
2012 filedesc_to_what_closure =
2013 xnew_array (struct what_is_ready_closure *, MAXDESC);
2015 for (i = 0; i < MAXDESC; i++)
2017 filedesc_to_what_closure[i] = 0;
2018 filedesc_with_input[i] = Qnil;
2021 process_events_occurred = 0;
2022 tty_events_occurred = 0;
2026 mark_what_as_being_ready (struct what_is_ready_closure *closure)
2028 if (NILP (filedesc_with_input[closure->fd]))
2030 SELECT_TYPE temp_mask;
2031 FD_ZERO (&temp_mask);
2032 FD_SET (closure->fd, &temp_mask);
2033 /* Check to make sure there's *really* input available.
2034 Sometimes things seem to get confused and this gets called
2035 for the tty fd when there's really only input available
2036 on some process's fd. (It will subsequently get called
2037 for that process's fd, so returning without setting any
2038 flags will take care of it.) To see the problem, uncomment
2039 the stderr_out below, turn NORMAL_QUIT_CHECK_TIMEOUT_MSECS
2040 down to 25, do sh -c 'xemacs -nw -q -f shell 2>/tmp/log'
2041 and press return repeatedly. (Seen under AIX & Linux.)
2042 -dkindred@cs.cmu.edu */
2043 if (!poll_fds_for_input (temp_mask))
2046 stderr_out ("mark_what_as_being_ready: no input available (fd=%d)\n",
2051 filedesc_with_input[closure->fd] = closure->what;
2052 if (PROCESSP (closure->what))
2053 /* Don't increment this if the current process is already marked
2054 * as having input. */
2055 process_events_occurred++;
2057 tty_events_occurred++;
2062 Xt_what_callback (void *closure, int *source, XtInputId *id)
2064 /* If closure is 0, then we got a fake event from a signal handler.
2065 The only purpose of this is to make XtAppProcessEvent() stop
2068 mark_what_as_being_ready ((struct what_is_ready_closure *) closure);
2071 fake_event_occurred++;
2072 drain_signal_event_pipe ();
2077 select_filedesc (int fd, Lisp_Object what)
2079 struct what_is_ready_closure *closure;
2081 /* If somebody is trying to select something that's already selected
2082 for, then something went wrong. The generic routines ought to
2083 detect this and error before here. */
2084 assert (!filedesc_to_what_closure[fd]);
2086 closure = xnew (struct what_is_ready_closure);
2088 closure->what = what;
2090 XtAppAddInput (Xt_app_con, fd,
2091 (XtPointer) (XtInputReadMask /* | XtInputExceptMask */),
2092 Xt_what_callback, closure);
2093 filedesc_to_what_closure[fd] = closure;
2097 unselect_filedesc (int fd)
2099 struct what_is_ready_closure *closure = filedesc_to_what_closure[fd];
2102 if (!NILP (filedesc_with_input[fd]))
2104 /* We are unselecting this process before we have drained the rest of
2105 the input from it, probably from status_notify() in the command loop.
2106 This can happen like so:
2108 - We are waiting in XtAppNextEvent()
2109 - Process generates output
2110 - Process is marked as being ready
2111 - Process dies, SIGCHLD gets generated before we return (!?)
2112 It could happen I guess.
2113 - sigchld_handler() marks process as dead
2114 - Somehow we end up getting a new KeyPress event on the queue
2115 at the same time (I'm really so sure how that happens but I'm
2116 not sure it can't either so let's assume it can...).
2117 - Key events have priority so we return that instead of the proc.
2118 - Before dispatching the lisp key event we call status_notify()
2119 - Which deselects the process that SIGCHLD marked as dead.
2121 Thus we never remove it from _with_input and turn it into a lisp
2122 event, so we need to do it here. But this does not mean that we're
2123 throwing away the last block of output - status_notify() has already
2124 taken care of running the proc filter or whatever.
2126 filedesc_with_input[fd] = Qnil;
2127 if (PROCESSP (closure->what))
2129 assert (process_events_occurred > 0);
2130 process_events_occurred--;
2134 assert (tty_events_occurred > 0);
2135 tty_events_occurred--;
2138 XtRemoveInput (closure->id);
2140 filedesc_to_what_closure[fd] = 0;
2144 emacs_Xt_select_process (Lisp_Process *p)
2146 Lisp_Object process;
2147 int infd = event_stream_unixoid_select_process (p);
2149 XSETPROCESS (process, p);
2150 select_filedesc (infd, process);
2154 emacs_Xt_unselect_process (Lisp_Process *p)
2156 int infd = event_stream_unixoid_unselect_process (p);
2158 unselect_filedesc (infd);
2162 emacs_Xt_create_stream_pair (void* inhandle, void* outhandle,
2163 Lisp_Object* instream, Lisp_Object* outstream, int flags)
2165 USID u = event_stream_unixoid_create_stream_pair
2166 (inhandle, outhandle, instream, outstream, flags);
2167 if (u != USID_ERROR)
2173 emacs_Xt_delete_stream_pair (Lisp_Object instream, Lisp_Object outstream)
2175 event_stream_unixoid_delete_stream_pair (instream, outstream);
2176 return USID_DONTHASH;
2179 /* This is called from GC when a process object is about to be freed.
2180 If we've still got pointers to it in this file, we're gonna lose hard.
2183 debug_process_finalization (Lisp_Process *p)
2187 Lisp_Object instr, outstr;
2189 get_process_streams (p, &instr, &outstr);
2190 /* if it still has fds, then it hasn't been killed yet. */
2191 assert (NILP(instr));
2192 assert (NILP(outstr));
2193 /* Better not still be in the "with input" table; we know it's got no fds. */
2194 for (i = 0; i < MAXDESC; i++)
2196 Lisp_Object process = filedesc_fds_with_input [i];
2197 assert (!PROCESSP (process) || XPROCESS (process) != p);
2203 Xt_process_to_emacs_event (Lisp_Event *emacs_event)
2207 assert (process_events_occurred > 0);
2209 for (i = 0; i < MAXDESC; i++)
2211 Lisp_Object process = filedesc_with_input[i];
2212 if (PROCESSP (process))
2214 filedesc_with_input[i] = Qnil;
2215 process_events_occurred--;
2216 /* process events have nil as channel */
2217 emacs_event->event_type = process_event;
2218 emacs_event->timestamp = 0; /* #### */
2219 emacs_event->event.process.process = process;
2227 emacs_Xt_select_console (struct console *con)
2229 Lisp_Object console;
2232 if (CONSOLE_X_P (con))
2233 return; /* X consoles are automatically selected for when we
2234 initialize them in Xt */
2235 infd = event_stream_unixoid_select_console (con);
2236 XSETCONSOLE (console, con);
2237 select_filedesc (infd, console);
2241 emacs_Xt_unselect_console (struct console *con)
2243 Lisp_Object console;
2246 if (CONSOLE_X_P (con))
2247 return; /* X consoles are automatically selected for when we
2248 initialize them in Xt */
2249 infd = event_stream_unixoid_unselect_console (con);
2250 XSETCONSOLE (console, con);
2251 unselect_filedesc (infd);
2254 /* read an event from a tty, if one is available. Returns non-zero
2255 if an event was available. Note that when this function is
2256 called, there should always be a tty marked as ready for input.
2257 However, the input condition might actually be EOF, so there
2258 may not really be any input available. (In this case,
2259 read_event_from_tty_or_stream_desc() will arrange for the TTY device
2263 Xt_tty_to_emacs_event (Lisp_Event *emacs_event)
2267 assert (tty_events_occurred > 0);
2268 for (i = 0; i < MAXDESC; i++)
2270 Lisp_Object console = filedesc_with_input[i];
2271 if (CONSOLEP (console))
2273 assert (tty_events_occurred > 0);
2274 tty_events_occurred--;
2275 filedesc_with_input[i] = Qnil;
2276 if (read_event_from_tty_or_stream_desc
2277 (emacs_event, XCONSOLE (console), i))
2286 /************************************************************************/
2287 /* debugging functions to decipher an event */
2288 /************************************************************************/
2291 #include "xintrinsicp.h" /* only describe_event() needs this */
2292 #include <X11/Xproto.h> /* only describe_event() needs this */
2295 describe_event_window (Window window, Display *display)
2299 stderr_out (" window: 0x%lx", (unsigned long) window);
2300 w = XtWindowToWidget (display, window);
2302 stderr_out (" %s", w->core.widget_class->core_class.class_name);
2303 f = x_any_window_to_frame (get_device_from_display (display), window);
2306 char *buf = alloca_array (char, XSTRING_LENGTH (f->name) + 4);
2307 sprintf (buf, " \"%s\"", XSTRING_DATA (f->name));
2308 write_string_to_stdio_stream (stderr, 0, (Bufbyte *) buf, 0,
2309 strlen (buf), Qterminal, 1);
2315 XEvent_mode_to_string (int mode)
2319 case NotifyNormal: return "Normal";
2320 case NotifyGrab: return "Grab";
2321 case NotifyUngrab: return "Ungrab";
2322 case NotifyWhileGrabbed: return "WhileGrabbed";
2323 default: return "???";
2328 XEvent_detail_to_string (int detail)
2332 case NotifyAncestor: return "Ancestor";
2333 case NotifyInferior: return "Inferior";
2334 case NotifyNonlinear: return "Nonlinear";
2335 case NotifyNonlinearVirtual: return "NonlinearVirtual";
2336 case NotifyPointer: return "Pointer";
2337 case NotifyPointerRoot: return "PointerRoot";
2338 case NotifyDetailNone: return "DetailNone";
2339 default: return "???";
2344 XEvent_visibility_to_string (int state)
2348 case VisibilityFullyObscured: return "FullyObscured";
2349 case VisibilityPartiallyObscured: return "PartiallyObscured";
2350 case VisibilityUnobscured: return "Unobscured";
2351 default: return "???";
2356 describe_event (XEvent *event)
2359 struct device *d = get_device_from_display (event->xany.display);
2361 sprintf (buf, "%s%s", x_event_name (event->type),
2362 event->xany.send_event ? " (send)" : "");
2363 stderr_out ("%-30s", buf);
2364 switch (event->type)
2369 XFocusChangeEvent *ev = &event->xfocus;
2370 describe_event_window (ev->window, ev->display);
2371 stderr_out (" mode: %s\n", XEvent_mode_to_string (ev->mode));
2372 stderr_out (" detail: %s\n", XEvent_detail_to_string(ev->detail));
2378 XKeyEvent *ev = &event->xkey;
2379 unsigned int state = ev->state;
2381 describe_event_window (ev->window, ev->display);
2382 stderr_out (" subwindow: %ld\n", ev->subwindow);
2383 stderr_out (" state: ");
2384 /* Complete list of modifier key masks */
2385 if (state & ShiftMask) stderr_out ("Shift ");
2386 if (state & LockMask) stderr_out ("Lock ");
2387 if (state & ControlMask) stderr_out ("Control ");
2388 if (state & Mod1Mask) stderr_out ("Mod1 ");
2389 if (state & Mod2Mask) stderr_out ("Mod2 ");
2390 if (state & Mod3Mask) stderr_out ("Mod3 ");
2391 if (state & Mod4Mask) stderr_out ("Mod4 ");
2392 if (state & Mod5Mask) stderr_out ("Mod5 ");
2395 stderr_out ("vanilla\n");
2398 if (x_key_is_modifier_p (ev->keycode, d))
2399 stderr_out (" Modifier key");
2400 stderr_out (" keycode: 0x%x\n", ev->keycode);
2405 if (x_debug_events > 1)
2407 XExposeEvent *ev = &event->xexpose;
2408 describe_event_window (ev->window, ev->display);
2409 stderr_out (" region: x=%d y=%d width=%d height=%d\n",
2410 ev->x, ev->y, ev->width, ev->height);
2411 stderr_out (" count: %d\n", ev->count);
2417 case GraphicsExpose:
2418 if (x_debug_events > 1)
2420 XGraphicsExposeEvent *ev = &event->xgraphicsexpose;
2421 describe_event_window (ev->drawable, ev->display);
2422 stderr_out (" major: %s\n",
2423 (ev ->major_code == X_CopyArea ? "CopyArea" :
2424 (ev->major_code == X_CopyPlane ? "CopyPlane" : "?")));
2425 stderr_out (" region: x=%d y=%d width=%d height=%d\n",
2426 ev->x, ev->y, ev->width, ev->height);
2427 stderr_out (" count: %d\n", ev->count);
2435 if (x_debug_events > 1)
2437 XCrossingEvent *ev = &event->xcrossing;
2438 describe_event_window (ev->window, ev->display);
2440 stderr_out(" subwindow: 0x%x\n", ev->subwindow);
2441 stderr_out(" pos: %d %d\n", ev->x, ev->y);
2442 stderr_out(" root pos: %d %d\n", ev->x_root, ev->y_root);
2444 stderr_out(" mode: %s\n", XEvent_mode_to_string(ev->mode));
2445 stderr_out(" detail: %s\n", XEvent_detail_to_string(ev->detail));
2446 stderr_out(" focus: %d\n", ev->focus);
2448 stderr_out(" state: 0x%x\n", ev->state);
2455 case ConfigureNotify:
2456 if (x_debug_events > 1)
2458 XConfigureEvent *ev = &event->xconfigure;
2459 describe_event_window (ev->window, ev->display);
2460 stderr_out(" above: 0x%lx\n", ev->above);
2461 stderr_out(" size: %d %d %d %d\n", ev->x, ev->y,
2462 ev->width, ev->height);
2463 stderr_out(" redirect: %d\n", ev->override_redirect);
2469 case VisibilityNotify:
2470 if (x_debug_events > 1)
2472 XVisibilityEvent *ev = &event->xvisibility;
2473 describe_event_window (ev->window, ev->display);
2474 stderr_out(" state: %s\n", XEvent_visibility_to_string(ev->state));
2482 XClientMessageEvent *ev = &event->xclient;
2483 char *name = XGetAtomName (ev->display, ev->message_type);
2484 stderr_out ("%s", name);
2485 if (!strcmp (name, "WM_PROTOCOLS")) {
2486 char *protname = XGetAtomName (ev->display, ev->data.l[0]);
2487 stderr_out ("(%s)", protname);
2503 #endif /* include describe_event definition */
2506 /************************************************************************/
2507 /* get the next event from Xt */
2508 /************************************************************************/
2510 static Lisp_Object dispatch_event_queue, dispatch_event_queue_tail;
2513 enqueue_Xt_dispatch_event (Lisp_Object event)
2515 enqueue_event (event, &dispatch_event_queue, &dispatch_event_queue_tail);
2519 dequeue_Xt_dispatch_event (void)
2521 return dequeue_event (&dispatch_event_queue, &dispatch_event_queue_tail);
2524 /* This business exists because menu events "happen" when
2525 menubar_selection_callback() is called from somewhere deep
2526 within XtAppProcessEvent in emacs_Xt_next_event(). The
2527 callback needs to terminate the modal loop in that function
2528 or else it will continue waiting until another event is
2531 Same business applies to scrollbar events. */
2534 signal_special_Xt_user_event (Lisp_Object channel, Lisp_Object function,
2537 Lisp_Object event = Fmake_event (Qnil, Qnil);
2539 XEVENT (event)->event_type = misc_user_event;
2540 XEVENT (event)->channel = channel;
2541 XEVENT (event)->event.eval.function = function;
2542 XEVENT (event)->event.eval.object = object;
2544 enqueue_Xt_dispatch_event (event);
2548 emacs_Xt_next_event (Lisp_Event *emacs_event)
2550 we_didnt_get_an_event:
2552 while (NILP (dispatch_event_queue) &&
2553 !completed_timeouts &&
2554 !fake_event_occurred &&
2555 !process_events_occurred &&
2556 !tty_events_occurred)
2559 /* Stupid logic in XtAppProcessEvent() dictates that, if process
2560 events and X events are both available, the process event gets
2561 taken first. This will cause an infinite loop if we're being
2562 called from Fdiscard_input().
2564 if (XtAppPending (Xt_app_con) & XtIMXEvent)
2565 XtAppProcessEvent (Xt_app_con, XtIMXEvent);
2568 Lisp_Object devcons, concons;
2570 /* We're about to block. Xt has a bug in it (big surprise,
2571 there) in that it blocks using select() and doesn't
2572 flush the Xlib output buffers (XNextEvent() does this
2573 automatically before blocking). So it's necessary
2574 for us to do this ourselves. If we don't do it, then
2575 display output may not be seen until the next time
2576 an X event is received. (This happens esp. with
2577 subprocess output that gets sent to a visible buffer.)
2579 #### The above comment may not have any validity. */
2581 DEVICE_LOOP_NO_BREAK (devcons, concons)
2584 d = XDEVICE (XCAR (devcons));
2586 if (DEVICE_X_P (d) && DEVICE_X_DISPLAY (d))
2587 /* emacs may be exiting */
2588 XFlush (DEVICE_X_DISPLAY (d));
2590 XtAppProcessEvent (Xt_app_con, XtIMAll);
2594 if (!NILP (dispatch_event_queue))
2596 Lisp_Object event, event2;
2597 XSETEVENT (event2, emacs_event);
2598 event = dequeue_Xt_dispatch_event ();
2599 Fcopy_event (event, event2);
2600 Fdeallocate_event (event);
2602 else if (tty_events_occurred)
2604 if (!Xt_tty_to_emacs_event (emacs_event))
2605 goto we_didnt_get_an_event;
2607 else if (completed_timeouts)
2608 Xt_timeout_to_emacs_event (emacs_event);
2609 else if (fake_event_occurred)
2611 /* A dummy event, so that a cycle of the command loop will occur. */
2612 fake_event_occurred = 0;
2613 /* eval events have nil as channel */
2614 emacs_event->event_type = eval_event;
2615 emacs_event->event.eval.function = Qidentity;
2616 emacs_event->event.eval.object = Qnil;
2618 else /* if (process_events_occurred) */
2619 Xt_process_to_emacs_event (emacs_event);
2621 /* No need to call XFilterEvent; Xt does it for us */
2625 emacs_Xt_event_handler (Widget wid /* unused */,
2626 XtPointer closure /* unused */,
2628 Boolean *continue_to_dispatch /* unused */)
2630 Lisp_Object emacs_event = Fmake_event (Qnil, Qnil);
2633 if (x_debug_events > 0)
2635 describe_event (event);
2637 #endif /* DEBUG_XEMACS */
2638 if (x_event_to_emacs_event (event, XEVENT (emacs_event)))
2639 enqueue_Xt_dispatch_event (emacs_event);
2641 Fdeallocate_event (emacs_event);
2645 /************************************************************************/
2646 /* input pending / C-g checking */
2647 /************************************************************************/
2650 quit_char_predicate (Display *display, XEvent *event, XPointer data)
2652 struct device *d = get_device_from_display (display);
2653 struct x_device *xd = DEVICE_X_DATA (d);
2655 Bool *critical = (Bool *) data;
2660 if ((event->type != KeyPress) ||
2661 (! x_any_window_to_frame (d, event->xany.window)) ||
2663 & (xd->MetaMask | xd->HyperMask | xd->SuperMask | xd->AltMask)))
2666 /* This duplicates some code that exists elsewhere, but it's relatively
2667 fast and doesn't cons. */
2668 keysym = x_to_emacs_keysym (&event->xkey, 1);
2669 if (NILP (keysym)) return 0;
2670 if (CHAR_OR_CHAR_INTP (keysym))
2671 c = XCHAR_OR_CHAR_INT (keysym);
2672 /* Highly doubtful that these are the quit character, but... */
2673 else if (EQ (keysym, QKbackspace)) c = '\b';
2674 else if (EQ (keysym, QKtab)) c = '\t';
2675 else if (EQ (keysym, QKlinefeed)) c = '\n';
2676 else if (EQ (keysym, QKreturn)) c = '\r';
2677 else if (EQ (keysym, QKescape)) c = 27;
2678 else if (EQ (keysym, QKspace)) c = ' ';
2679 else if (EQ (keysym, QKdelete)) c = 127;
2682 if (event->xkey.state & xd->MetaMask) c |= 0x80;
2683 if ((event->xkey.state & ControlMask) && !(c >= 'A' && c <= 'Z'))
2684 c &= 0x1F; /* unshifted control characters */
2685 quit_char = CONSOLE_QUIT_CHAR (XCONSOLE (DEVICE_CONSOLE (d)));
2688 /* If we've got Control-Shift-G instead of Control-G, that means
2689 we have a critical_quit. Caps_Lock is its own modifier, so it
2690 won't cause ^G to act differently than before. */
2691 if (event->xkey.state & ControlMask) c &= 0x1F;
2694 if (critical) *critical = True;
2700 /* This scans the X input queue for a KeyPress event that matches the
2701 quit character, and sets Vquit_flag. This is called from the
2702 QUIT macro to determine whether we should quit.
2704 In a SIGIO world, this won't be called unless a SIGIO has happened
2705 since the last time we checked.
2707 In a non-SIGIO world, this is called from emacs_Xt_event_pending_p
2708 (which is called from input_pending_p).
2711 x_check_for_quit_char (Display *display)
2715 Bool critical_quit = False;
2716 XEventsQueued (display, QueuedAfterReading);
2717 queued = XCheckIfEvent (display, &event,
2718 quit_char_predicate,
2719 (char *) &critical_quit);
2722 Vquit_flag = (critical_quit ? Qcritical : Qt);
2723 /* don't put the event back onto the queue. Those functions that
2724 wanted to read a ^G directly have arranged to do this. */
2729 check_for_tty_quit_char (struct device *d)
2731 SELECT_TYPE temp_mask;
2732 int infd = DEVICE_INFD (d);
2733 struct console *con = XCONSOLE (DEVICE_CONSOLE (d));
2734 Emchar quit_char = CONSOLE_QUIT_CHAR (con);
2736 FD_ZERO (&temp_mask);
2737 FD_SET (infd, &temp_mask);
2744 if (!poll_fds_for_input (temp_mask))
2747 event = Fmake_event (Qnil, Qnil);
2748 if (!read_event_from_tty_or_stream_desc (XEVENT (event), con, infd))
2749 /* EOF, or something ... */
2751 /* #### bogus. quit-char should be allowed to be any sort
2753 the_char = event_to_character (XEVENT (event), 1, 0, 0);
2754 if (the_char >= 0 && the_char == quit_char)
2757 /* do not queue the C-g. See above. */
2761 /* queue the read event to be read for real later. */
2762 enqueue_Xt_dispatch_event (event);
2767 emacs_Xt_quit_p (void)
2769 Lisp_Object devcons, concons;
2770 CONSOLE_LOOP (concons)
2772 struct console *con = XCONSOLE (XCAR (concons));
2773 if (!con->input_enabled)
2776 CONSOLE_DEVICE_LOOP (devcons, con)
2779 d = XDEVICE (XCAR (devcons));
2781 if (DEVICE_X_P (d) && DEVICE_X_DISPLAY (d))
2782 /* emacs may be exiting */
2783 x_check_for_quit_char (DEVICE_X_DISPLAY (d));
2784 else if (DEVICE_TTY_P (d))
2785 check_for_tty_quit_char (d);
2791 drain_X_queue (void)
2793 while (XtAppPending (Xt_app_con) & XtIMXEvent)
2794 XtAppProcessEvent (Xt_app_con, XtIMXEvent);
2798 emacs_Xt_event_pending_p (int user_p)
2803 /* If `user_p' is false, then this function returns whether there are any
2804 X, timeout, or fd events pending (that is, whether emacs_Xt_next_event()
2805 would return immediately without blocking).
2807 if `user_p' is true, then this function returns whether there are any
2808 *user generated* events available (that is, whether there are keyboard
2809 or mouse-click events ready to be read). This also implies that
2810 emacs_Xt_next_event() would not block.
2812 In a non-SIGIO world, this also checks whether the user has typed ^G,
2813 since this is a convenient place to do so. We don't need to do this
2814 in a SIGIO world, since input causes an interrupt.
2818 /* I don't think there's any point to this and it will nullify
2819 the speed gains achieved by the sigio_happened checking below.
2820 Its only advantage is that it may possibly make C-g response
2821 a bit faster. The C-g will be noticed within 0.25 second, anyway,
2822 even without this. */
2824 /* First check for C-g if necessary */
2829 /* This function used to simply check whether there were any X
2830 events (or if user_p was 1, it iterated over all the pending
2831 X events using XCheckIfEvent(), looking for keystrokes and
2832 button events). That worked in the old cheesoid event loop,
2833 which didn't go through XtAppDispatchEvent(), but it doesn't
2834 work any more -- X events may not result in anything. For
2835 example, a button press in a blank part of the menubar appears
2836 as an X event but will not result in any Emacs events (a
2837 button press that activates the menubar results in an Emacs
2838 event through the stop_next_event mechanism).
2840 The only accurate way of determining whether these X events
2841 translate into Emacs events is to go ahead and dispatch them
2842 until there's something on the dispatch queue. */
2844 /* See if there are any user events already on the queue. */
2845 EVENT_CHAIN_LOOP (event, dispatch_event_queue)
2846 if (!user_p || command_event_p (event))
2849 /* See if there's any TTY input available.
2851 if (poll_fds_for_input (tty_only_mask))
2856 /* If not user_p and there are any timer or file-desc events
2857 pending, we know there will be an event so we're through. */
2858 XtInputMask pending_value;
2860 /* Note that formerly we just checked the value of XtAppPending()
2861 to determine if there was file-desc input. This doesn't
2862 work any more with the signal_event_pipe; XtAppPending()
2863 will says "yes" in this case but there isn't really any
2864 input. Another way of fixing this problem is for the
2865 signal_event_pipe to generate actual input in the form
2866 of an identity eval event or something. (#### maybe this
2867 actually happens?) */
2869 if (poll_fds_for_input (process_only_mask))
2872 pending_value = XtAppPending (Xt_app_con);
2874 if (pending_value & XtIMTimer)
2878 /* XtAppPending() can be super-slow, esp. over a network connection.
2879 Quantify results have indicated that in some cases the
2880 call to detect_input_pending() completely dominates the
2881 running time of redisplay(). Fortunately, in a SIGIO world
2882 we can more quickly determine whether there are any X events:
2883 if an event has happened since the last time we checked, then
2884 a SIGIO will have happened. On a machine with broken SIGIO,
2885 we'll still be in an OK state -- the sigio_happened flag
2886 will get set at least once a second, so we'll be no more than
2887 one second behind reality. (In general it's OK if we
2888 erroneously report no input pending when input is actually
2889 pending() -- preemption is just a bit less efficient, that's
2890 all. It's bad bad bad if you err the other way -- you've
2891 promised that `next-event' won't block but it actually will,
2892 and some action might get delayed until the next time you
2896 /* quit_check_signal_tick_count is volatile so try to avoid race conditions
2897 by using a temporary variable */
2898 tick_count_val = quit_check_signal_tick_count;
2899 if (last_quit_check_signal_tick_count != tick_count_val)
2901 last_quit_check_signal_tick_count = tick_count_val;
2903 /* We need to drain the entire queue now -- if we only
2904 drain part of it, we may later on end up with events
2905 actually pending but detect_input_pending() returning
2906 false because there wasn't another SIGIO. */
2909 EVENT_CHAIN_LOOP (event, dispatch_event_queue)
2910 if (!user_p || command_event_p (event))
2918 /************************************************************************/
2919 /* replacement for standard string-to-pixel converter */
2920 /************************************************************************/
2922 /* This was constructed by ripping off the standard string-to-pixel
2923 converter from Converters.c in the Xt source code and modifying
2928 /* This is exported by the Xt library (at least by mine). If this
2929 isn't the case somewhere, rename this appropriately and remove
2930 the '#if 0'. Note, however, that I got "unknown structure"
2931 errors when I tried this. */
2932 XtConvertArgRec Const colorConvertArgs[] = {
2933 { XtWidgetBaseOffset, (XtPointer)XtOffsetOf(WidgetRec, core.screen),
2934 sizeof (Screen *) },
2935 { XtWidgetBaseOffset, (XtPointer)XtOffsetOf(WidgetRec, core.colormap),
2941 #define done(type, value) \
2942 if (toVal->addr != NULL) { \
2943 if (toVal->size < sizeof(type)) { \
2944 toVal->size = sizeof(type); \
2947 *(type*)(toVal->addr) = (value); \
2949 static type static_val; \
2950 static_val = (value); \
2951 toVal->addr = (XPointer)&static_val; \
2953 toVal->size = sizeof(type); \
2954 return True /* Caller supplies `;' */
2956 /* JH: We use this because I think there's a possibility this
2957 is called before the device is properly set up, in which case
2958 I don't want to abort. */
2959 extern struct device *get_device_from_display_1 (Display *dpy);
2962 Boolean EmacsXtCvtStringToPixel (
2966 XrmValuePtr fromVal,
2968 XtPointer *closure_ret)
2970 String str = (String)fromVal->addr;
2979 Cardinal num_params = 1;
2980 XtAppContext the_app_con = XtDisplayToApplicationContext (dpy);
2982 if (*num_args != 2) {
2983 XtAppWarningMsg(the_app_con, "wrongParameters", "cvtStringToPixel",
2985 "String to pixel conversion needs screen and colormap arguments",
2986 (String *)NULL, (Cardinal *)NULL);
2990 screen = *((Screen **) args[0].addr);
2991 colormap = *((Colormap *) args[1].addr);
2993 /* The original uses the private function CompareISOLatin1().
2994 Use XmuCompareISOLatin1() if you want, but I don't think it
2995 makes any difference here. */
2996 if (strcmp(str, XtDefaultBackground) == 0) {
2997 *closure_ret = False;
2998 /* This refers to the display's "*reverseVideo" resource.
2999 These display resources aren't documented anywhere that
3000 I can find, so I'm going to ignore this. */
3001 /* if (pd->rv) done(Pixel, BlackPixelOfScreen(screen)) else */
3002 done(Pixel, WhitePixelOfScreen(screen));
3004 if (strcmp(str, XtDefaultForeground) == 0) {
3005 *closure_ret = False;
3006 /* if (pd->rv) done(Pixel, WhitePixelOfScreen(screen)) else */
3007 done(Pixel, BlackPixelOfScreen(screen));
3010 /* Originally called XAllocNamedColor() here. */
3011 if ((d = get_device_from_display_1(dpy))) {
3012 visual = DEVICE_X_VISUAL(d);
3013 if (colormap != DEVICE_X_COLORMAP(d)) {
3014 XtAppWarningMsg(the_app_con, "wierdColormap", "cvtStringToPixel",
3016 "The colormap passed to cvtStringToPixel doesn't match the one registerd to the device.\n",
3018 status = XAllocNamedColor(dpy, colormap, (char*)str, &screenColor, &exactColor);
3020 status = XParseColor (dpy, colormap, (char*)str, &screenColor);
3022 status = allocate_nearest_color (dpy, colormap, visual, &screenColor);
3026 /* We haven't set up this device totally yet, so just punt */
3027 status = XAllocNamedColor(dpy, colormap, (char*)str, &screenColor, &exactColor);
3031 /* Server returns a specific error code but Xlib discards it. Ugh */
3032 if (XLookupColor(DisplayOfScreen(screen), colormap, (char*) str,
3033 &exactColor, &screenColor)) {
3034 XtAppWarningMsg(the_app_con, "noColormap", "cvtStringToPixel",
3036 "Cannot allocate colormap entry for \"%s\"",
3037 params, &num_params);
3040 XtAppWarningMsg(the_app_con, "badValue", "cvtStringToPixel",
3042 "Color name \"%s\" is not defined", params, &num_params);
3045 *closure_ret = False;
3048 *closure_ret = (char*)True;
3049 done(Pixel, screenColor.pixel);
3054 static void EmacsFreePixel (
3061 if (*num_args != 2) {
3062 XtAppWarningMsg(app, "wrongParameters","freePixel","XtToolkitError",
3063 "Freeing a pixel requires screen and colormap arguments",
3064 (String *)NULL, (Cardinal *)NULL);
3069 Screen *screen = *((Screen **) args[0].addr);
3070 Colormap colormap = *((Colormap *) args[1].addr);
3071 XFreeColors(DisplayOfScreen(screen), colormap,
3072 (unsigned long*)toVal->addr, 1, (unsigned long)0);
3077 /************************************************************************/
3078 /* handle focus changes for native widgets */
3079 /************************************************************************/
3081 emacs_Xt_event_widget_focus_in (Widget w,
3084 Cardinal *num_params)
3087 x_any_widget_or_parent_to_frame (get_device_from_display (event->xany.display), w);
3089 XtSetKeyboardFocus (FRAME_X_SHELL_WIDGET (f), w);
3093 emacs_Xt_event_widget_focus_out (Widget w,
3096 Cardinal *num_params)
3100 static XtActionsRec widgetActionsList[] =
3102 {"widget-focus-in", emacs_Xt_event_widget_focus_in },
3103 {"widget-focus-out", emacs_Xt_event_widget_focus_out },
3107 emacs_Xt_event_add_widget_actions (XtAppContext ctx)
3109 XtAppAddActions (ctx, widgetActionsList, 2);
3113 /************************************************************************/
3114 /* initialization */
3115 /************************************************************************/
3118 syms_of_event_Xt (void)
3120 defsymbol (&Qkey_mapping, "key-mapping");
3121 defsymbol (&Qsans_modifiers, "sans-modifiers");
3122 defsymbol (&Qself_insert_command, "self-insert-command");
3126 reinit_vars_of_event_Xt (void)
3128 Xt_event_stream = xnew (struct event_stream);
3129 Xt_event_stream->event_pending_p = emacs_Xt_event_pending_p;
3130 Xt_event_stream->force_event_pending = emacs_Xt_force_event_pending;
3131 Xt_event_stream->next_event_cb = emacs_Xt_next_event;
3132 Xt_event_stream->handle_magic_event_cb = emacs_Xt_handle_magic_event;
3133 Xt_event_stream->add_timeout_cb = emacs_Xt_add_timeout;
3134 Xt_event_stream->remove_timeout_cb = emacs_Xt_remove_timeout;
3135 Xt_event_stream->select_console_cb = emacs_Xt_select_console;
3136 Xt_event_stream->unselect_console_cb = emacs_Xt_unselect_console;
3137 Xt_event_stream->select_process_cb = emacs_Xt_select_process;
3138 Xt_event_stream->unselect_process_cb = emacs_Xt_unselect_process;
3139 Xt_event_stream->quit_p_cb = emacs_Xt_quit_p;
3140 Xt_event_stream->create_stream_pair_cb = emacs_Xt_create_stream_pair;
3141 Xt_event_stream->delete_stream_pair_cb = emacs_Xt_delete_stream_pair;
3143 the_Xt_timeout_blocktype = Blocktype_new (struct Xt_timeout_blocktype);
3145 last_quit_check_signal_tick_count = 0;
3147 /* this function only makes safe calls */
3148 init_what_input_once ();
3152 vars_of_event_Xt (void)
3154 reinit_vars_of_event_Xt ();
3156 dispatch_event_queue = Qnil;
3157 staticpro (&dispatch_event_queue);
3158 dispatch_event_queue_tail = Qnil;
3159 pdump_wire (&dispatch_event_queue_tail);
3161 DEFVAR_BOOL ("x-allow-sendevents", &x_allow_sendevents /*
3162 *Non-nil means to allow synthetic events. Nil means they are ignored.
3163 Beware: allowing emacs to process SendEvents opens a big security hole.
3165 x_allow_sendevents = 0;
3168 DEFVAR_INT ("x-debug-events", &x_debug_events /*
3169 If non-zero, display debug information about X events that XEmacs sees.
3170 Information is displayed on stderr. Currently defined values are:
3172 1 == non-verbose output
3179 /* This mess is a hack that patches the shell widget to treat visual inheritance
3180 the same as colormap and depth inheritance */
3182 static XtInitProc orig_shell_init_proc;
3184 static void ShellVisualPatch(Widget wanted, Widget new,
3185 ArgList args, Cardinal *num_args)
3188 ShellWidget w = (ShellWidget) new;
3190 /* first, call the original setup */
3191 (*orig_shell_init_proc)(wanted, new, args, num_args);
3193 /* if the visual isn't explicitly set, grab it from the nearest shell ancestor */
3194 if (w->shell.visual == CopyFromParent) {
3196 while (p && !XtIsShell(p)) p = XtParent(p);
3197 if (p) w->shell.visual = ((ShellWidget)p)->shell.visual;
3202 init_event_Xt_late (void) /* called when already initialized */
3204 timeout_id_tick = 1;
3205 pending_timeouts = 0;
3206 completed_timeouts = 0;
3208 event_stream = Xt_event_stream;
3210 #if defined(HAVE_XIM) || defined(USE_XFONTSET)
3211 Initialize_Locale();
3212 #endif /* HAVE_XIM || USE_XFONTSET */
3214 XtToolkitInitialize ();
3215 Xt_app_con = XtCreateApplicationContext ();
3216 XtAppSetFallbackResources (Xt_app_con, (String *) x_fallback_resources);
3219 x_selection_timeout = (XtAppGetSelectionTimeout (Xt_app_con) / 1000);
3220 XSetErrorHandler (x_error_handler);
3221 XSetIOErrorHandler (x_IO_error_handler);
3224 XtAppAddInput (Xt_app_con, signal_event_pipe[0],
3225 (XtPointer) (XtInputReadMask /* | XtInputExceptMask */),
3226 Xt_what_callback, 0);
3229 XtAppSetTypeConverter (Xt_app_con, XtRString, XtRPixel,
3230 EmacsXtCvtStringToPixel,
3231 (XtConvertArgList) colorConvertArgs,
3232 2, XtCacheByDisplay, EmacsFreePixel);
3235 XtAppSetTypeConverter (Xt_app_con, XtRString, XtRXimStyles,
3236 EmacsXtCvtStringToXIMStyles,
3238 XtCacheByDisplay, EmacsFreeXIMStyles);
3239 #endif /* XIM_XLIB */
3240 /* Add extra actions to native widgets to handle focus and friends. */
3241 emacs_Xt_event_add_widget_actions (Xt_app_con);
3243 /* insert the visual inheritance patch/hack described above */
3244 orig_shell_init_proc = shellClassRec.core_class.initialize;
3245 shellClassRec.core_class.initialize = ShellVisualPatch;