Mercurial > hg > xemacs-beta
annotate src/event-Xt.c @ 4742:4cf435fcebbc
Make #'letf not error if handed a #'values form.
lisp/ChangeLog addition:
2009-11-14 Aidan Kehoe <kehoea@parhasard.net>
* cl-macs.el (letf):
Check whether arguments to #'values are bound, and make them
unbound after evaluating BODY; document the limitations of this
macro.
tests/ChangeLog addition:
2009-11-14 Aidan Kehoe <kehoea@parhasard.net>
* automated/lisp-tests.el:
Don't call Known-Bug-Expect-Failure now that the particular letf
bug it tickled is fixed.
| author | Aidan Kehoe <kehoea@parhasard.net> |
|---|---|
| date | Sat, 14 Nov 2009 11:43:09 +0000 |
| parents | 726060ee587c |
| children | 2fd201d73a92 |
| rev | line source |
|---|---|
| 428 | 1 /* The event_stream interface for X11 with Xt, and/or tty frames. |
| 2 Copyright (C) 1991-5, 1997 Free Software Foundation, Inc. | |
| 3 Copyright (C) 1995 Sun Microsystems, Inc. | |
| 1268 | 4 Copyright (C) 1996, 2001, 2002, 2003 Ben Wing. |
| 428 | 5 |
| 6 This file is part of XEmacs. | |
| 7 | |
| 8 XEmacs is free software; you can redistribute it and/or modify it | |
| 9 under the terms of the GNU General Public License as published by the | |
| 10 Free Software Foundation; either version 2, or (at your option) any | |
| 11 later version. | |
| 12 | |
| 13 XEmacs is distributed in the hope that it will be useful, but WITHOUT | |
| 14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 16 for more details. | |
| 17 | |
| 18 You should have received a copy of the GNU General Public License | |
| 19 along with XEmacs; see the file COPYING. If not, write to | |
| 20 the Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
| 21 Boston, MA 02111-1307, USA. */ | |
| 22 | |
| 23 /* Synched up with: Not in FSF. */ | |
| 24 | |
| 25 #include <config.h> | |
| 26 #include "lisp.h" | |
| 27 | |
| 28 #include "blocktype.h" | |
| 771 | 29 #include "charset.h" |
| 428 | 30 #include "console.h" |
| 872 | 31 #include "device-impl.h" |
| 800 | 32 #include "elhash.h" |
| 428 | 33 #include "events.h" |
| 800 | 34 #include "file-coding.h" |
| 872 | 35 #include "frame-impl.h" |
| 800 | 36 #include "glyphs.h" |
| 37 #include "lstream.h" | |
| 428 | 38 #include "process.h" |
| 39 #include "redisplay.h" | |
| 800 | 40 #include "window.h" |
| 41 | |
| 42 #include "console-tty.h" | |
| 43 | |
| 872 | 44 #include "console-x-impl.h" |
| 800 | 45 #include "objects-x.h" |
| 46 #include "../lwlib/lwlib.h" | |
| 47 #include "EmacsFrame.h" | |
| 48 | |
| 49 #include "sysproc.h" /* for MAXDESC */ | |
| 428 | 50 #include "systime.h" |
| 51 | |
| 52 #include "xintrinsicp.h" /* CoreP.h needs this */ | |
| 53 #include <X11/CoreP.h> /* Numerous places access the fields of | |
| 54 a core widget directly. We could | |
| 55 use XtGetValues(), but ... */ | |
| 56 #include <X11/ShellP.h> | |
| 57 | |
| 800 | 58 #if defined (HAVE_XIM) && defined (XIM_MOTIF) |
| 1315 | 59 #include "xmotif.h" |
| 428 | 60 #endif |
| 61 | |
| 62 #ifdef HAVE_DRAGNDROP | |
| 63 #include "dragdrop.h" | |
| 64 #endif | |
| 65 | |
| 66 #if defined (HAVE_OFFIX_DND) | |
| 67 #include "offix.h" | |
| 68 #endif | |
| 69 | |
| 1292 | 70 #ifdef WIN32_ANY |
| 71 extern int mswindows_is_blocking; | |
| 72 #endif | |
| 73 | |
| 2828 | 74 /* For Russian C-x processing. */ |
| 3171 | 75 Lisp_Object Vx_us_keymap_description; |
| 76 Fixnum Vx_us_keymap_first_keycode; | |
| 2699 | 77 |
| 1094 | 78 /* used in glyphs-x.c */ |
| 79 void enqueue_focus_event (Widget wants_it, Lisp_Object frame, int in_p); | |
| 428 | 80 static void handle_focus_event_1 (struct frame *f, int in_p); |
| 863 | 81 static void handle_focus_event_2 (Window w, struct frame *f, int in_p); |
| 428 | 82 |
| 83 static struct event_stream *Xt_event_stream; | |
| 84 | |
| 85 /* With the new event model, all events go through XtDispatchEvent() | |
| 86 and are picked up by an event handler that is added to each frame | |
| 87 widget. (This is how it's supposed to be.) In the old method, | |
| 88 Emacs sucks out events directly from XtNextEvent() and only | |
| 89 dispatches the events that it doesn't need to deal with. This | |
| 90 old way has lots of corresponding junk that is no longer | |
| 91 necessary: lwlib extensions, synthetic XAnyEvents, unnecessary | |
| 92 magic events, etc. */ | |
| 93 | |
| 94 /* The one and only one application context that Emacs uses. */ | |
| 95 XtAppContext Xt_app_con; | |
| 96 | |
| 97 /* Do we accept events sent by other clients? */ | |
| 98 int x_allow_sendevents; | |
| 99 | |
| 100 #ifdef DEBUG_XEMACS | |
| 458 | 101 Fixnum debug_x_events; |
| 428 | 102 #endif |
| 103 | |
| 104 static int process_events_occurred; | |
| 105 static int tty_events_occurred; | |
| 450 | 106 static Widget widget_with_focus; |
| 428 | 107 |
| 108 /* Mask of bits indicating the descriptors that we wait for input on */ | |
| 1268 | 109 extern SELECT_TYPE input_wait_mask, non_fake_input_wait_mask; |
| 110 extern SELECT_TYPE process_only_mask, tty_only_mask; | |
| 428 | 111 |
|
4528
726060ee587c
First draft of g++ 4.3 warning removal patch. Builds. *Needs ChangeLogs.*
Stephen J. Turnbull <stephen@xemacs.org>
parents:
4522
diff
changeset
|
112 /* #### This should be String, but G++ 4.3 doesn't apply the const |
|
726060ee587c
First draft of g++ 4.3 warning removal patch. Builds. *Needs ChangeLogs.*
Stephen J. Turnbull <stephen@xemacs.org>
parents:
4522
diff
changeset
|
113 specifier the same way for String (typedef'd to char*) and char*. */ |
|
726060ee587c
First draft of g++ 4.3 warning removal patch. Builds. *Needs ChangeLogs.*
Stephen J. Turnbull <stephen@xemacs.org>
parents:
4522
diff
changeset
|
114 static const char * x_fallback_resources[] = |
| 428 | 115 { |
| 116 /* This file is automatically generated from the app-defaults file | |
| 117 in ../etc/Emacs.ad. These resources are consulted only if no | |
| 118 app-defaults file is found at all. | |
| 119 */ | |
| 120 #include <Emacs.ad.h> | |
| 121 0 | |
| 122 }; | |
| 123 | |
| 124 static Lisp_Object x_keysym_to_emacs_keysym (KeySym keysym, int simple_p); | |
| 125 void emacs_Xt_mapping_action (Widget w, XEvent *event); | |
| 440 | 126 void debug_process_finalization (Lisp_Process *p); |
| 428 | 127 void emacs_Xt_event_handler (Widget wid, XtPointer closure, XEvent *event, |
| 128 Boolean *continue_to_dispatch); | |
| 129 | |
| 130 static int last_quit_check_signal_tick_count; | |
| 131 | |
| 132 Lisp_Object Qsans_modifiers; | |
| 133 | |
| 1268 | 134 #define THIS_IS_X |
| 135 #include "event-xlike-inc.c" | |
| 136 | |
| 428 | 137 |
| 138 /************************************************************************/ | |
| 139 /* keymap handling */ | |
| 140 /************************************************************************/ | |
| 141 | |
| 2828 | 142 /* See comment near character_to_event(). */ |
| 440 | 143 static void |
| 2828 | 144 maybe_define_x_key_as_self_inserting_character (KeySym keysym, |
| 145 Lisp_Object symbol) | |
| 440 | 146 { |
| 147 Lisp_Object character = x_keysym_to_character (keysym); | |
| 148 | |
| 149 if (CHARP (character)) | |
| 150 { | |
| 151 extern Lisp_Object Vcurrent_global_map; | |
| 2828 | 152 extern Lisp_Object Qcharacter_of_keysym; |
| 971 | 153 if (NILP (Flookup_key (Vcurrent_global_map, symbol, Qnil))) |
| 154 { | |
| 2828 | 155 Fput (symbol, Qcharacter_of_keysym, character); |
| 971 | 156 Fdefine_key (Vcurrent_global_map, symbol, Qself_insert_command); |
| 157 } | |
| 440 | 158 } |
| 159 } | |
| 160 | |
| 2828 | 161 void |
| 440 | 162 x_has_keysym (KeySym keysym, Lisp_Object hash_table, int with_modifiers) |
| 163 { | |
| 164 KeySym upper_lower[2]; | |
| 165 int j; | |
| 166 | |
| 167 if (keysym < 0x80) /* Optimize for ASCII keysyms */ | |
| 168 return; | |
| 442 | 169 |
| 170 /* If you execute: | |
| 171 xmodmap -e 'keysym NN = scaron' | |
| 440 | 172 and then press (Shift scaron), X11 will return the different |
| 442 | 173 keysym `Scaron', but `xmodmap -pke' might not even mention `Scaron'. |
| 174 So we "register" both `scaron' and `Scaron'. */ | |
| 175 #ifdef HAVE_XCONVERTCASE | |
| 440 | 176 XConvertCase (keysym, &upper_lower[0], &upper_lower[1]); |
| 442 | 177 #else |
| 178 upper_lower[0] = upper_lower[1] = keysym; | |
| 179 #endif | |
| 440 | 180 |
| 181 for (j = 0; j < (upper_lower[0] == upper_lower[1] ? 1 : 2); j++) | |
| 182 { | |
| 2828 | 183 Extbyte *name; |
| 440 | 184 keysym = upper_lower[j]; |
| 185 | |
| 186 name = XKeysymToString (keysym); | |
| 187 if (name) | |
| 188 { | |
| 189 /* X guarantees NAME to be in the Host Portable Character Encoding */ | |
| 190 Lisp_Object sym = x_keysym_to_emacs_keysym (keysym, 0); | |
| 191 Lisp_Object new_value = with_modifiers ? Qt : Qsans_modifiers; | |
| 192 Lisp_Object old_value = Fgethash (sym, hash_table, Qnil); | |
| 193 | |
| 194 if (! EQ (old_value, new_value) | |
| 195 && ! (EQ (old_value, Qsans_modifiers) && | |
| 196 EQ (new_value, Qt))) | |
| 197 { | |
| 198 maybe_define_x_key_as_self_inserting_character (keysym, sym); | |
| 2828 | 199 Fputhash (build_ext_string (name, Qbinary), new_value, |
| 200 hash_table); | |
| 440 | 201 Fputhash (sym, new_value, hash_table); |
| 202 } | |
| 203 } | |
| 204 } | |
| 205 } | |
| 206 | |
| 428 | 207 static void |
| 208 x_reset_key_mapping (struct device *d) | |
| 209 { | |
| 210 Display *display = DEVICE_X_DISPLAY (d); | |
| 211 struct x_device *xd = DEVICE_X_DATA (d); | |
| 212 KeySym *keysym, *keysym_end; | |
| 213 Lisp_Object hash_table; | |
| 214 int key_code_count, keysyms_per_code; | |
| 215 | |
| 216 if (xd->x_keysym_map) | |
| 217 XFree ((char *) xd->x_keysym_map); | |
| 218 XDisplayKeycodes (display, | |
| 219 &xd->x_keysym_map_min_code, | |
| 220 &xd->x_keysym_map_max_code); | |
| 221 key_code_count = xd->x_keysym_map_max_code - xd->x_keysym_map_min_code + 1; | |
| 222 xd->x_keysym_map = | |
| 223 XGetKeyboardMapping (display, xd->x_keysym_map_min_code, key_code_count, | |
| 224 &xd->x_keysym_map_keysyms_per_code); | |
| 225 | |
| 226 hash_table = xd->x_keysym_map_hash_table; | |
| 227 if (HASH_TABLEP (hash_table)) | |
| 228 Fclrhash (hash_table); | |
| 229 else | |
| 230 xd->x_keysym_map_hash_table = hash_table = | |
| 231 make_lisp_hash_table (128, HASH_TABLE_NON_WEAK, HASH_TABLE_EQUAL); | |
| 232 | |
| 233 for (keysym = xd->x_keysym_map, | |
| 234 keysyms_per_code = xd->x_keysym_map_keysyms_per_code, | |
| 235 keysym_end = keysym + (key_code_count * keysyms_per_code); | |
| 236 keysym < keysym_end; | |
| 237 keysym += keysyms_per_code) | |
| 238 { | |
| 239 int j; | |
| 240 | |
| 241 if (keysym[0] == NoSymbol) | |
| 242 continue; | |
| 243 | |
| 440 | 244 x_has_keysym (keysym[0], hash_table, 0); |
| 428 | 245 |
| 246 for (j = 1; j < keysyms_per_code; j++) | |
| 247 { | |
| 248 if (keysym[j] != keysym[0] && | |
| 249 keysym[j] != NoSymbol) | |
| 440 | 250 x_has_keysym (keysym[j], hash_table, 1); |
| 428 | 251 } |
| 252 } | |
| 253 } | |
| 254 | |
| 2828 | 255 static const Ascbyte * |
| 428 | 256 index_to_name (int indice) |
| 257 { | |
| 258 switch (indice) | |
| 259 { | |
| 260 case ShiftMapIndex: return "ModShift"; | |
| 261 case LockMapIndex: return "ModLock"; | |
| 262 case ControlMapIndex: return "ModControl"; | |
| 263 case Mod1MapIndex: return "Mod1"; | |
| 264 case Mod2MapIndex: return "Mod2"; | |
| 265 case Mod3MapIndex: return "Mod3"; | |
| 266 case Mod4MapIndex: return "Mod4"; | |
| 267 case Mod5MapIndex: return "Mod5"; | |
| 268 default: return "???"; | |
| 269 } | |
| 270 } | |
| 271 | |
| 2828 | 272 /* X bogusly doesn't define the interpretations of any bits besides |
| 273 ModControl, ModShift, and ModLock; so the Interclient Communication | |
| 274 Conventions Manual says that we have to bend over backwards to figure | |
| 275 out what the other modifier bits mean. According to ICCCM: | |
| 276 | |
| 277 - Any keycode which is assigned ModControl is a "control" key. | |
| 278 | |
| 279 - Any modifier bit which is assigned to a keycode which generates Meta_L | |
| 280 or Meta_R is the modifier bit meaning "meta". Likewise for Super, Hyper, | |
| 281 etc. | |
| 282 | |
| 283 - Any keypress event which contains ModControl in its state should be | |
| 284 interpreted as a "control" character. | |
| 285 | |
| 286 - Any keypress event which contains a modifier bit in its state which is | |
| 287 generated by a keycode whose corresponding keysym is Meta_L or Meta_R | |
| 288 should be interpreted as a "meta" character. Likewise for Super, Hyper, | |
| 289 etc. | |
| 290 | |
| 291 - It is illegal for a keysym to be associated with more than one modifier | |
| 292 bit. | |
| 293 | |
| 294 This means that the only thing that emacs can reasonably interpret as a | |
| 295 "meta" key is a key whose keysym is Meta_L or Meta_R, and which generates | |
| 296 one of the modifier bits Mod1-Mod5. | |
| 297 | |
| 298 Unfortunately, many keyboards don't have Meta keys in their default | |
| 299 configuration. So, if there are no Meta keys, but there are "Alt" keys, | |
| 300 emacs will interpret Alt as Meta. If there are both Meta and Alt keys, | |
| 301 then the Meta keys mean "Meta", and the Alt keys mean "Alt" (it used to | |
| 302 mean "Symbol," but that just confused the hell out of way too many people). | |
| 303 | |
| 304 This works with the default configurations of the 19 keyboard-types I've | |
| 305 checked. | |
| 306 | |
| 307 Emacs detects keyboard configurations which violate the above rules, and | |
| 308 gives a warning. */ | |
| 428 | 309 |
| 310 static void | |
| 311 x_reset_modifier_mapping (struct device *d) | |
| 312 { | |
| 313 Display *display = DEVICE_X_DISPLAY (d); | |
| 314 struct x_device *xd = DEVICE_X_DATA (d); | |
| 315 int modifier_index, modifier_key, column, mkpm; | |
| 316 int warned_about_overlapping_modifiers = 0; | |
| 317 int warned_about_predefined_modifiers = 0; | |
| 318 int warned_about_duplicate_modifiers = 0; | |
| 319 int meta_bit = 0; | |
| 320 int hyper_bit = 0; | |
| 321 int super_bit = 0; | |
| 322 int alt_bit = 0; | |
| 323 int mode_bit = 0; | |
| 324 | |
| 325 xd->lock_interpretation = 0; | |
| 326 | |
| 327 if (xd->x_modifier_keymap) | |
| 3949 | 328 { |
| 329 XFreeModifiermap (xd->x_modifier_keymap); | |
| 330 /* Set it to NULL in case we receive two MappingModifier events in a | |
| 331 row, and the second is processed during some CHECK_QUITs within | |
| 332 x_reset_key_mapping. If that happens, XFreeModifierMap will be | |
| 333 called twice on the same map, and we crash. */ | |
| 334 xd->x_modifier_keymap = NULL; | |
| 335 } | |
| 428 | 336 |
| 337 x_reset_key_mapping (d); | |
| 338 | |
| 339 xd->x_modifier_keymap = XGetModifierMapping (display); | |
| 340 | |
| 341 /* Boy, I really wish C had local functions... | |
| 342 */ | |
| 343 | |
| 344 /* The call to warn_when_safe must be on the same line as the string or | |
| 345 make-msgfile won't pick it up properly (the newline doesn't confuse | |
| 346 it, but the backslash does). */ | |
| 347 | |
| 348 #define modwarn(name,old,other) \ | |
| 349 warn_when_safe (Qkey_mapping, Qwarning, "XEmacs: %s (0x%x) generates %s, which is generated by %s.", \ | |
| 350 name, code, index_to_name (old), other), \ | |
| 351 warned_about_overlapping_modifiers = 1 | |
| 352 | |
| 353 #define modbarf(name,other) \ | |
| 354 warn_when_safe (Qkey_mapping, Qwarning, "XEmacs: %s (0x%x) generates %s, which is nonsensical.", \ | |
| 355 name, code, other), \ | |
| 356 warned_about_predefined_modifiers = 1 | |
| 357 | |
| 358 #define check_modifier(name,mask) \ | |
| 359 if ((1<<modifier_index) != mask) \ | |
| 360 warn_when_safe (Qkey_mapping, Qwarning, "XEmacs: %s (0x%x) generates %s, which is nonsensical.", \ | |
| 361 name, code, index_to_name (modifier_index)), \ | |
| 362 warned_about_predefined_modifiers = 1 | |
| 363 | |
| 364 #define store_modifier(name,old) \ | |
| 365 if (old && old != modifier_index) \ | |
| 366 warn_when_safe (Qkey_mapping, Qwarning, "XEmacs: %s (0x%x) generates both %s and %s, which is nonsensical.",\ | |
| 367 name, code, index_to_name (old), \ | |
| 368 index_to_name (modifier_index)), \ | |
| 369 warned_about_duplicate_modifiers = 1; \ | |
| 370 if (modifier_index == ShiftMapIndex) modbarf (name,"ModShift"); \ | |
| 371 else if (modifier_index == LockMapIndex) modbarf (name,"ModLock"); \ | |
| 372 else if (modifier_index == ControlMapIndex) modbarf (name,"ModControl"); \ | |
| 373 else if (sym == XK_Mode_switch) \ | |
| 374 mode_bit = modifier_index; /* Mode_switch is special, see below... */ \ | |
| 375 else if (modifier_index == meta_bit && old != meta_bit) \ | |
| 376 modwarn (name, meta_bit, "Meta"); \ | |
| 377 else if (modifier_index == super_bit && old != super_bit) \ | |
| 378 modwarn (name, super_bit, "Super"); \ | |
| 379 else if (modifier_index == hyper_bit && old != hyper_bit) \ | |
| 380 modwarn (name, hyper_bit, "Hyper"); \ | |
| 381 else if (modifier_index == alt_bit && old != alt_bit) \ | |
| 382 modwarn (name, alt_bit, "Alt"); \ | |
| 383 else \ | |
| 384 old = modifier_index; | |
| 385 | |
| 386 mkpm = xd->x_modifier_keymap->max_keypermod; | |
| 387 for (modifier_index = 0; modifier_index < 8; modifier_index++) | |
| 388 for (modifier_key = 0; modifier_key < mkpm; modifier_key++) { | |
| 389 KeySym last_sym = 0; | |
| 390 for (column = 0; column < 4; column += 2) { | |
| 391 KeyCode code = xd->x_modifier_keymap->modifiermap[modifier_index * mkpm | |
| 392 + modifier_key]; | |
| 393 KeySym sym = (code ? XKeycodeToKeysym (display, code, column) : 0); | |
| 394 if (sym == last_sym) continue; | |
| 395 last_sym = sym; | |
| 396 switch (sym) { | |
| 397 case XK_Mode_switch:store_modifier ("Mode_switch", mode_bit); break; | |
| 398 case XK_Meta_L: store_modifier ("Meta_L", meta_bit); break; | |
| 399 case XK_Meta_R: store_modifier ("Meta_R", meta_bit); break; | |
| 400 case XK_Super_L: store_modifier ("Super_L", super_bit); break; | |
| 401 case XK_Super_R: store_modifier ("Super_R", super_bit); break; | |
| 402 case XK_Hyper_L: store_modifier ("Hyper_L", hyper_bit); break; | |
| 403 case XK_Hyper_R: store_modifier ("Hyper_R", hyper_bit); break; | |
| 404 case XK_Alt_L: store_modifier ("Alt_L", alt_bit); break; | |
| 405 case XK_Alt_R: store_modifier ("Alt_R", alt_bit); break; | |
| 406 case XK_Control_L: check_modifier ("Control_L", ControlMask); break; | |
| 407 case XK_Control_R: check_modifier ("Control_R", ControlMask); break; | |
| 408 case XK_Shift_L: check_modifier ("Shift_L", ShiftMask); break; | |
| 409 case XK_Shift_R: check_modifier ("Shift_R", ShiftMask); break; | |
| 410 case XK_Shift_Lock: check_modifier ("Shift_Lock", LockMask); | |
| 411 xd->lock_interpretation = XK_Shift_Lock; break; | |
| 412 case XK_Caps_Lock: check_modifier ("Caps_Lock", LockMask); | |
| 413 xd->lock_interpretation = XK_Caps_Lock; break; | |
| 414 | |
| 415 /* It probably doesn't make any sense for a modifier bit to be | |
| 416 assigned to a key that is not one of the above, but OpenWindows | |
| 417 assigns modifier bits to a couple of random function keys for | |
| 418 no reason that I can discern, so printing a warning here would | |
| 419 be annoying. */ | |
| 420 } | |
| 421 } | |
| 422 } | |
| 423 #undef store_modifier | |
| 424 #undef check_modifier | |
| 425 #undef modwarn | |
| 426 #undef modbarf | |
| 427 | |
| 428 /* If there was no Meta key, then try using the Alt key instead. | |
| 429 If there is both a Meta key and an Alt key, then the Alt key | |
| 430 is not disturbed and remains an Alt key. */ | |
| 431 if (! meta_bit && alt_bit) | |
| 432 meta_bit = alt_bit, alt_bit = 0; | |
| 433 | |
| 434 /* mode_bit overrides everything, since it's processed down inside of | |
| 435 XLookupString() instead of by us. If Meta and Mode_switch both | |
| 436 generate the same modifier bit (which is an error), then we don't | |
| 437 interpret that bit as Meta, because we can't make XLookupString() | |
| 438 not interpret it as Mode_switch; and interpreting it as both would | |
| 439 be totally wrong. */ | |
| 440 if (mode_bit) | |
| 441 { | |
| 2828 | 442 const Ascbyte *warn = 0; |
| 428 | 443 if (mode_bit == meta_bit) warn = "Meta", meta_bit = 0; |
| 444 else if (mode_bit == hyper_bit) warn = "Hyper", hyper_bit = 0; | |
| 445 else if (mode_bit == super_bit) warn = "Super", super_bit = 0; | |
| 446 else if (mode_bit == alt_bit) warn = "Alt", alt_bit = 0; | |
| 447 if (warn) | |
| 448 { | |
| 449 warn_when_safe | |
| 450 (Qkey_mapping, Qwarning, | |
| 451 "XEmacs: %s is being used for both Mode_switch and %s.", | |
| 452 index_to_name (mode_bit), warn), | |
| 453 warned_about_overlapping_modifiers = 1; | |
| 454 } | |
| 455 } | |
| 456 #undef index_to_name | |
| 457 | |
| 458 xd->MetaMask = (meta_bit ? (1 << meta_bit) : 0); | |
| 459 xd->HyperMask = (hyper_bit ? (1 << hyper_bit) : 0); | |
| 460 xd->SuperMask = (super_bit ? (1 << super_bit) : 0); | |
| 461 xd->AltMask = (alt_bit ? (1 << alt_bit) : 0); | |
| 462 xd->ModeMask = (mode_bit ? (1 << mode_bit) : 0); /* unused */ | |
| 463 | |
| 464 | |
| 465 if (warned_about_overlapping_modifiers) | |
| 466 warn_when_safe (Qkey_mapping, Qwarning, "\n" | |
| 467 " Two distinct modifier keys (such as Meta and Hyper) cannot generate\n" | |
| 468 " the same modifier bit, because Emacs won't be able to tell which\n" | |
| 469 " modifier was actually held down when some other key is pressed. It\n" | |
| 470 " won't be able to tell Meta-x and Hyper-x apart, for example. Change\n" | |
| 471 " one of these keys to use some other modifier bit. If you intend for\n" | |
| 472 " these keys to have the same behavior, then change them to have the\n" | |
| 473 " same keysym as well as the same modifier bit."); | |
| 474 | |
| 475 if (warned_about_predefined_modifiers) | |
| 476 warn_when_safe (Qkey_mapping, Qwarning, "\n" | |
| 477 " The semantics of the modifier bits ModShift, ModLock, and ModControl\n" | |
| 478 " are predefined. It does not make sense to assign ModControl to any\n" | |
| 479 " keysym other than Control_L or Control_R, or to assign any modifier\n" | |
| 480 " bits to the \"control\" keysyms other than ModControl. You can't\n" | |
| 481 " turn a \"control\" key into a \"meta\" key (or vice versa) by simply\n" | |
| 482 " assigning the key a different modifier bit. You must also make that\n" | |
| 483 " key generate an appropriate keysym (Control_L, Meta_L, etc)."); | |
| 484 | |
| 485 /* No need to say anything more for warned_about_duplicate_modifiers. */ | |
| 486 | |
| 487 if (warned_about_overlapping_modifiers || warned_about_predefined_modifiers) | |
| 488 warn_when_safe (Qkey_mapping, Qwarning, "\n" | |
| 489 " The meanings of the modifier bits Mod1 through Mod5 are determined\n" | |
| 490 " by the keysyms used to control those bits. Mod1 does NOT always\n" | |
| 491 " mean Meta, although some non-ICCCM-compliant programs assume that."); | |
| 492 } | |
| 493 | |
| 494 void | |
| 495 x_init_modifier_mapping (struct device *d) | |
| 496 { | |
| 497 struct x_device *xd = DEVICE_X_DATA (d); | |
| 498 xd->x_keysym_map_hash_table = Qnil; | |
| 499 xd->x_keysym_map = NULL; | |
| 500 xd->x_modifier_keymap = NULL; | |
| 501 x_reset_modifier_mapping (d); | |
| 502 } | |
| 503 | |
| 504 static int | |
| 505 x_key_is_modifier_p (KeyCode keycode, struct device *d) | |
| 506 { | |
| 507 struct x_device *xd = DEVICE_X_DATA (d); | |
| 508 KeySym *syms; | |
| 509 int i; | |
| 510 | |
| 511 if (keycode < xd->x_keysym_map_min_code || | |
| 512 keycode > xd->x_keysym_map_max_code) | |
| 513 return 0; | |
| 514 | |
| 515 syms = &xd->x_keysym_map [(keycode - xd->x_keysym_map_min_code) * | |
| 516 xd->x_keysym_map_keysyms_per_code]; | |
| 517 for (i = 0; i < xd->x_keysym_map_keysyms_per_code; i++) | |
| 518 if (IsModifierKey (syms [i]) || | |
| 519 syms [i] == XK_Mode_switch) /* why doesn't IsModifierKey count this? */ | |
| 520 return 1; | |
| 521 return 0; | |
| 522 } | |
| 523 | |
| 524 /* key-handling code is always ugly. It just ends up working out | |
| 525 that way. | |
| 526 | |
| 527 Here are some pointers: | |
| 528 | |
| 529 -- DOWN_MASK indicates which modifiers should be treated as "down" | |
| 530 when the corresponding upstroke happens. It gets reset for | |
| 531 a particular modifier when that modifier goes up, and reset | |
| 532 for all modifiers when a non-modifier key is pressed. Example: | |
| 533 | |
| 534 I press Control-A-Shift and then release Control-A-Shift. | |
| 535 I want the Shift key to be sticky but not the Control key. | |
| 536 | |
| 537 -- LAST_DOWNKEY and RELEASE_TIME are used to keep track of | |
| 538 auto-repeat -- see below. | |
| 539 | |
| 540 -- If a modifier key is sticky, I can unstick it by pressing | |
| 541 the modifier key again. */ | |
| 542 | |
| 543 static void | |
| 544 x_handle_sticky_modifiers (XEvent *ev, struct device *d) | |
| 545 { | |
| 546 struct x_device *xd; | |
| 547 KeyCode keycode; | |
| 548 int type; | |
| 549 | |
| 550 if (!modifier_keys_are_sticky) /* Optimize for non-sticky modifiers */ | |
| 551 return; | |
| 552 | |
| 553 xd = DEVICE_X_DATA (d); | |
| 554 keycode = ev->xkey.keycode; | |
| 555 type = ev->type; | |
| 556 | |
| 557 if (keycode < xd->x_keysym_map_min_code || | |
| 558 keycode > xd->x_keysym_map_max_code) | |
| 559 return; | |
| 560 | |
| 561 if (! ((type == KeyPress || type == KeyRelease) && | |
| 562 x_key_is_modifier_p (keycode, d))) | |
| 563 { /* Not a modifier key */ | |
| 564 Bool key_event_p = (type == KeyPress || type == KeyRelease); | |
| 565 | |
| 444 | 566 if (type == ButtonPress |
| 567 || (type == KeyPress | |
| 568 && ((xd->last_downkey | |
| 569 && ((keycode != xd->last_downkey | |
| 570 || ev->xkey.time != xd->release_time))) | |
| 571 || (INTP (Vmodifier_keys_sticky_time) | |
| 572 && ev->xkey.time | |
| 573 > (xd->modifier_release_time | |
| 574 + XINT (Vmodifier_keys_sticky_time)))))) | |
| 428 | 575 { |
| 576 xd->need_to_add_mask = 0; | |
| 577 xd->last_downkey = 0; | |
| 578 } | |
| 444 | 579 else if (type == KeyPress && !xd->last_downkey) |
| 580 xd->last_downkey = keycode; | |
| 581 | |
| 428 | 582 if (type == KeyPress) |
| 583 xd->release_time = 0; | |
| 584 if (type == KeyPress || type == ButtonPress) | |
| 444 | 585 { |
| 586 xd->down_mask = 0; | |
| 587 xd->modifier_release_time = 0; | |
| 588 } | |
| 428 | 589 |
| 590 if (key_event_p) | |
| 591 ev->xkey.state |= xd->need_to_add_mask; | |
| 592 else | |
| 593 ev->xbutton.state |= xd->need_to_add_mask; | |
| 594 | |
| 595 if (type == KeyRelease && keycode == xd->last_downkey) | |
| 596 /* If I hold press-and-release the Control key and then press | |
| 597 and hold down the right arrow, I want it to auto-repeat | |
| 598 Control-Right. On the other hand, if I do the same but | |
| 599 manually press the Right arrow a bunch of times, I want | |
| 600 to see one Control-Right and then a bunch of Rights. | |
| 601 This means that we need to distinguish between an | |
| 602 auto-repeated key and a key pressed and released a bunch | |
| 603 of times. | |
| 604 | |
| 605 Naturally, the designers of the X spec didn't see fit | |
| 606 to provide an obvious way to distinguish these cases. | |
| 607 So we assume that if the release and the next press | |
| 608 occur at the same time, the key was actually auto- | |
| 609 repeated. Under Open-Windows, at least, this works. */ | |
| 444 | 610 xd->modifier_release_time = xd->release_time |
| 611 = key_event_p ? ev->xkey.time : ev->xbutton.time; | |
| 428 | 612 } |
| 613 else /* Modifier key pressed */ | |
| 614 { | |
| 615 int i; | |
| 616 KeySym *syms = &xd->x_keysym_map [(keycode - xd->x_keysym_map_min_code) * | |
| 617 xd->x_keysym_map_keysyms_per_code]; | |
| 618 | |
| 619 /* If a non-modifier key was pressed in the middle of a bunch | |
| 620 of modifiers, then it unsticks all the modifiers that were | |
| 621 previously pressed. We cannot unstick the modifiers until | |
| 622 now because we want to check for auto-repeat of the | |
| 623 non-modifier key. */ | |
| 624 | |
| 625 if (xd->last_downkey) | |
| 626 { | |
| 627 xd->last_downkey = 0; | |
| 628 xd->need_to_add_mask = 0; | |
| 629 } | |
| 630 | |
| 444 | 631 if (xd->modifier_release_time |
| 632 && INTP (Vmodifier_keys_sticky_time) | |
| 633 && (ev->xkey.time | |
| 634 > xd->modifier_release_time + XINT (Vmodifier_keys_sticky_time))) | |
| 635 { | |
| 636 xd->need_to_add_mask = 0; | |
| 637 xd->down_mask = 0; | |
| 638 } | |
| 639 | |
| 428 | 640 #define FROB(mask) \ |
| 641 do { \ | |
| 642 if (type == KeyPress) \ | |
| 643 { \ | |
| 644 /* If modifier key is already sticky, \ | |
| 645 then unstick it. Note that we do \ | |
| 646 not test down_mask to deal with the \ | |
| 647 unlikely but possible case that the \ | |
| 648 modifier key auto-repeats. */ \ | |
| 649 if (xd->need_to_add_mask & mask) \ | |
| 650 { \ | |
| 651 xd->need_to_add_mask &= ~mask; \ | |
| 652 xd->down_mask &= ~mask; \ | |
| 653 } \ | |
| 654 else \ | |
| 655 xd->down_mask |= mask; \ | |
| 656 } \ | |
| 657 else \ | |
| 658 { \ | |
| 659 if (xd->down_mask & mask) \ | |
| 660 { \ | |
| 661 xd->down_mask &= ~mask; \ | |
| 662 xd->need_to_add_mask |= mask; \ | |
| 663 } \ | |
| 664 } \ | |
| 444 | 665 xd->modifier_release_time = ev->xkey.time; \ |
| 428 | 666 } while (0) |
| 667 | |
| 668 for (i = 0; i < xd->x_keysym_map_keysyms_per_code; i++) | |
| 669 switch (syms[i]) | |
| 670 { | |
| 671 case XK_Control_L: case XK_Control_R: FROB (ControlMask); break; | |
| 672 case XK_Shift_L: case XK_Shift_R: FROB (ShiftMask); break; | |
| 673 case XK_Meta_L: case XK_Meta_R: FROB (xd->MetaMask); break; | |
| 674 case XK_Super_L: case XK_Super_R: FROB (xd->SuperMask); break; | |
| 675 case XK_Hyper_L: case XK_Hyper_R: FROB (xd->HyperMask); break; | |
| 676 case XK_Alt_L: case XK_Alt_R: FROB (xd->AltMask); break; | |
| 677 } | |
| 678 } | |
| 679 #undef FROB | |
| 680 } | |
| 681 | |
| 682 static void | |
| 683 clear_sticky_modifiers (struct device *d) | |
| 684 { | |
| 685 struct x_device *xd = DEVICE_X_DATA (d); | |
| 686 | |
| 687 xd->need_to_add_mask = 0; | |
| 688 xd->last_downkey = 0; | |
| 689 xd->release_time = 0; | |
| 690 xd->down_mask = 0; | |
| 691 } | |
| 692 | |
| 693 static int | |
| 694 keysym_obeys_caps_lock_p (KeySym sym, struct device *d) | |
| 695 { | |
| 696 struct x_device *xd = DEVICE_X_DATA (d); | |
| 697 /* Eeeeevil hack. Don't apply Caps_Lock to things that aren't alphabetic | |
| 698 characters, where "alphabetic" means something more than simply A-Z. | |
| 699 That is, if Caps_Lock is down, typing ESC doesn't produce Shift-ESC. | |
| 700 But if shift-lock is down, then it does. */ | |
| 701 if (xd->lock_interpretation == XK_Shift_Lock) | |
| 702 return 1; | |
| 703 | |
| 704 return | |
| 705 ((sym >= XK_A) && (sym <= XK_Z)) || | |
| 706 ((sym >= XK_a) && (sym <= XK_z)) || | |
| 707 ((sym >= XK_Agrave) && (sym <= XK_Odiaeresis)) || | |
| 708 ((sym >= XK_agrave) && (sym <= XK_odiaeresis)) || | |
| 709 ((sym >= XK_Ooblique) && (sym <= XK_Thorn)) || | |
| 710 ((sym >= XK_oslash) && (sym <= XK_thorn)); | |
| 711 } | |
| 712 | |
| 713 /* called from EmacsFrame.c (actually from Xt itself) when a | |
| 714 MappingNotify event is received. In its infinite wisdom, Xt | |
| 715 decided that Xt event handlers never get MappingNotify events. | |
| 716 O'Reilly Xt Programming Manual 9.1.2 says: | |
| 717 | |
| 718 MappingNotify is automatically handled by Xt, so it isn't passed | |
| 719 to event handlers and you don't need to worry about it. | |
| 720 | |
| 721 Of course, we DO worry about it, so we need a special translation. */ | |
| 722 void | |
| 2286 | 723 emacs_Xt_mapping_action (Widget UNUSED (w), XEvent *event) |
| 428 | 724 { |
| 725 struct device *d = get_device_from_display (event->xany.display); | |
| 726 | |
| 727 if (DEVICE_X_BEING_DELETED (d)) | |
| 728 return; | |
| 729 #if 0 | |
| 730 /* nyet. Now this is handled by Xt. */ | |
| 731 XRefreshKeyboardMapping (&event->xmapping); | |
| 732 #endif | |
| 733 /* xmodmap generates about a billion MappingKeyboard events, followed | |
| 734 by a single MappingModifier event, so it might be worthwhile to | |
| 735 take extra MappingKeyboard events out of the queue before requesting | |
| 736 the current keymap from the server. */ | |
| 737 switch (event->xmapping.request) | |
| 738 { | |
| 739 case MappingKeyboard: x_reset_key_mapping (d); break; | |
| 740 case MappingModifier: x_reset_modifier_mapping (d); break; | |
| 741 case MappingPointer: /* Do something here? */ break; | |
| 2500 | 742 default: ABORT(); |
| 428 | 743 } |
| 744 } | |
| 745 | |
| 746 | |
| 747 /************************************************************************/ | |
| 748 /* X to Emacs event conversion */ | |
| 749 /************************************************************************/ | |
| 750 | |
| 751 static Lisp_Object | |
| 752 x_keysym_to_emacs_keysym (KeySym keysym, int simple_p) | |
| 753 { | |
| 2828 | 754 Extbyte *name; |
| 755 DECLARE_EISTRING(einame); | |
| 756 | |
| 428 | 757 if (keysym >= XK_exclam && keysym <= XK_asciitilde) |
| 758 /* We must assume that the X keysym numbers for the ASCII graphic | |
| 759 characters are the same as their ASCII codes. */ | |
| 760 return make_char (keysym); | |
| 761 | |
| 762 switch (keysym) | |
| 763 { | |
| 764 /* These would be handled correctly by the default case, but by | |
| 765 special-casing them here we don't garbage a string or call | |
| 766 intern(). */ | |
| 767 case XK_BackSpace: return QKbackspace; | |
| 768 case XK_Tab: return QKtab; | |
| 769 case XK_Linefeed: return QKlinefeed; | |
| 770 case XK_Return: return QKreturn; | |
| 771 case XK_Escape: return QKescape; | |
| 772 case XK_space: return QKspace; | |
| 773 case XK_Delete: return QKdelete; | |
| 774 case 0: return Qnil; | |
| 775 default: | |
| 776 if (simple_p) return Qnil; | |
| 777 name = XKeysymToString (keysym); | |
| 778 if (!name || !name[0]) | |
| 779 /* This happens if there is a mismatch between the Xlib of | |
| 780 XEmacs and the Xlib of the X server... | |
| 781 | |
| 782 Let's hard-code in some knowledge of common keysyms introduced | |
| 783 in recent X11 releases. Snarfed from X11/keysymdef.h | |
| 784 | |
| 785 Probably we should add some stuff here for X11R6. */ | |
| 786 switch (keysym) | |
| 787 { | |
| 788 case 0xFF95: return KEYSYM ("kp-home"); | |
| 789 case 0xFF96: return KEYSYM ("kp-left"); | |
| 790 case 0xFF97: return KEYSYM ("kp-up"); | |
| 791 case 0xFF98: return KEYSYM ("kp-right"); | |
| 792 case 0xFF99: return KEYSYM ("kp-down"); | |
| 793 case 0xFF9A: return KEYSYM ("kp-prior"); | |
| 794 case 0xFF9B: return KEYSYM ("kp-next"); | |
| 795 case 0xFF9C: return KEYSYM ("kp-end"); | |
| 796 case 0xFF9D: return KEYSYM ("kp-begin"); | |
| 797 case 0xFF9E: return KEYSYM ("kp-insert"); | |
| 798 case 0xFF9F: return KEYSYM ("kp-delete"); | |
| 799 | |
| 800 case 0x1005FF10: return KEYSYM ("SunF36"); /* labeled F11 */ | |
| 801 case 0x1005FF11: return KEYSYM ("SunF37"); /* labeled F12 */ | |
| 802 default: | |
| 803 { | |
| 2828 | 804 Ascbyte buf [64]; |
| 428 | 805 sprintf (buf, "unknown-keysym-0x%X", (int) keysym); |
| 806 return KEYSYM (buf); | |
| 807 } | |
| 808 } | |
| 2828 | 809 |
| 428 | 810 /* If it's got a one-character name, that's good enough. */ |
| 811 if (!name[1]) | |
| 2828 | 812 return make_char ((Ichar)name[0]); |
| 813 | |
| 814 /* In theory the Host Portable Character Set is just ASCII, but | |
| 815 trusting X11 implementors to get that right is likely to lead to | |
| 816 tears. */ | |
| 817 eicpy_ext(einame, name, Qbinary); | |
| 428 | 818 |
| 819 /* If it's in the "Keyboard" character set, downcase it. | |
| 820 The case of those keysyms is too totally random for us to | |
| 821 force anyone to remember them. | |
| 2828 | 822 The case of the other character sets is significant, however. */ |
| 428 | 823 if ((((unsigned int) keysym) & (~0x1FF)) == ((unsigned int) 0xFE00)) |
| 824 { | |
| 2828 | 825 Ibyte *iname; |
| 826 eilwr(einame); | |
| 827 | |
| 828 for (iname = eidata(einame); *iname != '\0';) | |
| 829 { | |
| 830 if (*iname == '_') | |
| 831 { | |
| 832 *iname = '-'; | |
| 833 } | |
| 834 INC_IBYTEPTR(iname); | |
| 428 | 835 } |
| 836 } | |
| 2837 | 837 return KEYSYM ((const CIbyte *) eidata (einame)); |
| 428 | 838 } |
| 839 } | |
| 840 | |
| 841 static Lisp_Object | |
| 842 x_to_emacs_keysym (XKeyPressedEvent *event, int simple_p) | |
| 843 /* simple_p means don't try too hard (ASCII only) */ | |
| 844 { | |
| 845 KeySym keysym = 0; | |
| 846 | |
| 847 #ifdef HAVE_XIM | |
| 3072 | 848 int len = 0; |
| 442 | 849 /* Some implementations of XmbLookupString don't return |
| 850 XBufferOverflow correctly, so increase the size of the xim input | |
| 851 buffer from 64 to the more reasonable size 513, as Emacs has done. | |
| 852 From Kenichi Handa. */ | |
| 853 char buffer[513]; | |
| 428 | 854 char *bufptr = buffer; |
| 855 int bufsiz = sizeof (buffer); | |
| 856 Status status; | |
| 857 #ifdef XIM_XLIB | |
| 858 XIC xic = FRAME_X_XIC (x_any_window_to_frame | |
| 859 (get_device_from_display (event->display), | |
| 860 event->window)); | |
| 861 #endif /* XIM_XLIB */ | |
| 862 #endif /* HAVE_XIM */ | |
| 863 | |
| 864 /* We use XLookupString if we're not using XIM, or are using | |
| 865 XIM_XLIB but input context creation failed. */ | |
| 866 #if ! (defined (HAVE_XIM) && defined (XIM_MOTIF)) | |
| 867 #if defined (HAVE_XIM) && defined (XIM_XLIB) | |
| 868 if (!xic) | |
| 869 #endif /* XIM_XLIB */ | |
| 870 { | |
| 871 /* Apparently it's necessary to specify a dummy here (rather | |
| 872 than passing in 0) to avoid crashes on German IRIX */ | |
| 873 char dummy[256]; | |
| 874 XLookupString (event, dummy, 200, &keysym, 0); | |
| 875 return (IsModifierKey (keysym) || keysym == XK_Mode_switch ) | |
| 876 ? Qnil : x_keysym_to_emacs_keysym (keysym, simple_p); | |
| 877 } | |
| 878 #endif /* ! XIM_MOTIF */ | |
| 879 | |
| 880 #ifdef HAVE_XIM | |
| 881 Lookup_String: /* Come-From XBufferOverflow */ | |
| 882 #ifdef XIM_MOTIF | |
| 883 len = XmImMbLookupString (XtWindowToWidget (event->display, event->window), | |
| 884 event, bufptr, bufsiz, &keysym, &status); | |
| 885 #else /* XIM_XLIB */ | |
| 886 if (xic) | |
| 887 len = XmbLookupString (xic, event, bufptr, bufsiz, &keysym, &status); | |
| 1494 | 888 #endif /* XIM_MOTIF */ |
| 428 | 889 |
| 890 #ifdef DEBUG_XEMACS | |
| 442 | 891 if (debug_x_events > 0) |
| 428 | 892 { |
| 893 stderr_out (" status="); | |
| 894 #define print_status_when(S) if (status == S) stderr_out (#S) | |
| 895 print_status_when (XLookupKeySym); | |
| 896 print_status_when (XLookupBoth); | |
| 897 print_status_when (XLookupChars); | |
| 898 print_status_when (XLookupNone); | |
| 899 print_status_when (XBufferOverflow); | |
| 900 | |
| 901 if (status == XLookupKeySym || status == XLookupBoth) | |
| 902 stderr_out (" keysym=%s", XKeysymToString (keysym)); | |
| 903 if (status == XLookupChars || status == XLookupBoth) | |
| 904 { | |
| 3072 | 905 if (len > 1) |
| 428 | 906 { |
| 907 int j; | |
| 908 stderr_out (" chars=\""); | |
| 909 for (j=0; j<len; j++) | |
| 3142 | 910 { |
| 911 if (040 <= bufptr[j] && bufptr[j] >= 0177) | |
| 912 { | |
| 913 stderr_out ("%c", bufptr[j]); | |
| 914 } | |
| 915 else | |
| 916 { | |
| 917 stderr_out ("\\%o", (unsigned)(bufptr[j])); | |
| 918 } | |
| 919 } | |
| 428 | 920 stderr_out ("\""); |
| 921 } | |
| 922 else if (bufptr[0] <= 32 || bufptr[0] >= 127) | |
| 923 stderr_out (" char=0x%x", bufptr[0]); | |
| 924 else | |
| 925 stderr_out (" char=%c", bufptr[0]); | |
| 926 } | |
| 927 stderr_out ("\n"); | |
| 928 } | |
| 929 #endif /* DEBUG_XEMACS */ | |
| 930 | |
| 931 switch (status) | |
| 932 { | |
| 933 case XLookupKeySym: | |
| 934 case XLookupBoth: | |
| 935 return (IsModifierKey (keysym) || keysym == XK_Mode_switch ) | |
| 936 ? Qnil : x_keysym_to_emacs_keysym (keysym, simple_p); | |
| 937 | |
| 938 case XLookupChars: | |
| 939 { | |
| 940 /* Generate multiple emacs events */ | |
| 941 struct device *d = get_device_from_display (event->display); | |
| 867 | 942 Ichar ch; |
| 428 | 943 Lisp_Object instream, fb_instream; |
| 944 Lstream *istr; | |
| 945 struct gcpro gcpro1, gcpro2; | |
| 946 | |
| 440 | 947 fb_instream = make_fixed_buffer_input_stream (bufptr, len); |
| 948 | |
| 3142 | 949 /* [[ Use get_coding_system_for_text_file |
| 950 (Vcomposed_input_coding_system, 0) ]] | |
| 951 | |
| 952 Nope. If it is possible for the X libraries to have multiple IM | |
| 953 connections on different DISPLAYs active at once, this should be | |
| 954 a console-specific variable (like a TTY's coding system) but I've | |
| 955 seen no evidence that that is possible. Aidan Kehoe, | |
| 956 2005-12-17. */ | |
| 957 | |
| 428 | 958 instream = |
| 771 | 959 make_coding_input_stream |
| 3142 | 960 (XLSTREAM (fb_instream), Qkeyboard, CODING_DECODE, 0); |
| 428 | 961 |
| 962 istr = XLSTREAM (instream); | |
| 963 | |
| 964 GCPRO2 (instream, fb_instream); | |
| 867 | 965 while ((ch = Lstream_get_ichar (istr)) != EOF) |
| 428 | 966 { |
| 967 Lisp_Object emacs_event = Fmake_event (Qnil, Qnil); | |
| 440 | 968 Lisp_Event *ev = XEVENT (emacs_event); |
| 428 | 969 ev->channel = DEVICE_CONSOLE (d); |
| 960 | 970 ev->timestamp = event->time; |
| 971 XSET_EVENT_TYPE (emacs_event, key_press_event); | |
| 1204 | 972 XSET_EVENT_KEY_MODIFIERS (emacs_event, 0); |
| 973 XSET_EVENT_KEY_KEYSYM (emacs_event, make_char (ch)); | |
| 974 enqueue_dispatch_event (emacs_event); | |
| 428 | 975 } |
| 976 Lstream_close (istr); | |
| 977 UNGCPRO; | |
| 978 Lstream_delete (istr); | |
| 979 Lstream_delete (XLSTREAM (fb_instream)); | |
| 980 return Qnil; | |
| 981 } | |
| 982 case XLookupNone: return Qnil; | |
| 983 case XBufferOverflow: | |
| 2367 | 984 /* !!#### needs work */ |
| 851 | 985 bufptr = (char *) ALLOCA (len+1); |
| 428 | 986 bufsiz = len+1; |
| 987 goto Lookup_String; | |
| 988 } | |
| 801 | 989 return Qnil; /* not (usually) reached */ |
| 428 | 990 #endif /* HAVE_XIM */ |
| 991 } | |
| 992 | |
| 993 static void | |
| 994 set_last_server_timestamp (struct device *d, XEvent *x_event) | |
| 995 { | |
| 996 Time t; | |
| 997 switch (x_event->type) | |
| 998 { | |
| 999 case KeyPress: | |
| 1000 case KeyRelease: t = x_event->xkey.time; break; | |
| 1001 case ButtonPress: | |
| 1002 case ButtonRelease: t = x_event->xbutton.time; break; | |
| 1003 case EnterNotify: | |
| 1004 case LeaveNotify: t = x_event->xcrossing.time; break; | |
| 1005 case MotionNotify: t = x_event->xmotion.time; break; | |
| 1006 case PropertyNotify: t = x_event->xproperty.time; break; | |
| 1007 case SelectionClear: t = x_event->xselectionclear.time; break; | |
| 1008 case SelectionRequest: t = x_event->xselectionrequest.time; break; | |
| 1009 case SelectionNotify: t = x_event->xselection.time; break; | |
| 1010 default: return; | |
| 1011 } | |
| 1012 DEVICE_X_LAST_SERVER_TIMESTAMP (d) = t; | |
| 1013 } | |
| 1014 | |
| 1015 static int | |
| 440 | 1016 x_event_to_emacs_event (XEvent *x_event, Lisp_Event *emacs_event) |
| 428 | 1017 { |
| 1018 Display *display = x_event->xany.display; | |
| 1019 struct device *d = get_device_from_display (display); | |
| 1020 struct x_device *xd = DEVICE_X_DATA (d); | |
| 1021 | |
| 1022 if (DEVICE_X_BEING_DELETED (d)) | |
| 2828 | 1023 { |
| 1024 /* [[ Uh, is this 0 correct? ]] | |
| 1025 | |
| 1026 Yup--it means emacs_Xt_event_handler, the only place that calls | |
| 1027 this, doesn't queue the emacs_event dispatch, instead immediately | |
| 1028 deallocating it. */ | |
| 1029 return 0; | |
| 1030 } | |
| 428 | 1031 |
| 1032 set_last_server_timestamp (d, x_event); | |
| 1033 | |
| 1034 switch (x_event->type) | |
| 1035 { | |
| 1036 case KeyRelease: | |
| 934 | 1037 { |
| 1038 x_handle_sticky_modifiers (x_event, d); | |
| 1039 return 0; | |
| 1040 } | |
| 428 | 1041 case KeyPress: |
| 1042 case ButtonPress: | |
| 1043 case ButtonRelease: | |
| 1044 { | |
| 442 | 1045 int modifiers = 0; |
| 428 | 1046 int shift_p, lock_p; |
| 1047 Bool key_event_p = (x_event->type == KeyPress); | |
| 1048 unsigned int *state = | |
| 1049 key_event_p ? &x_event->xkey.state : &x_event->xbutton.state; | |
| 1050 | |
| 1051 /* If this is a synthetic KeyPress or Button event, and the user | |
| 1052 has expressed a disinterest in this security hole, then drop | |
| 1053 it on the floor. */ | |
| 1054 if ((key_event_p | |
| 1055 ? x_event->xkey.send_event | |
| 1056 : x_event->xbutton.send_event) | |
| 1057 #ifdef EXTERNAL_WIDGET | |
| 1058 /* ben: events get sent to an ExternalShell using XSendEvent. | |
| 1059 This is not a perfect solution. */ | |
| 1060 && !FRAME_X_EXTERNAL_WINDOW_P | |
| 1061 (x_any_window_to_frame (d, x_event->xany.window)) | |
| 1062 #endif | |
| 1063 && !x_allow_sendevents) | |
| 1064 return 0; | |
| 1065 | |
| 1066 DEVICE_X_MOUSE_TIMESTAMP (d) = | |
| 1067 DEVICE_X_GLOBAL_MOUSE_TIMESTAMP (d) = | |
| 1068 key_event_p ? x_event->xkey.time : x_event->xbutton.time; | |
| 1069 | |
| 1070 x_handle_sticky_modifiers (x_event, d); | |
| 1071 | |
| 442 | 1072 if (*state & ControlMask) modifiers |= XEMACS_MOD_CONTROL; |
| 1073 if (*state & xd->MetaMask) modifiers |= XEMACS_MOD_META; | |
| 1074 if (*state & xd->SuperMask) modifiers |= XEMACS_MOD_SUPER; | |
| 1075 if (*state & xd->HyperMask) modifiers |= XEMACS_MOD_HYPER; | |
| 1076 if (*state & xd->AltMask) modifiers |= XEMACS_MOD_ALT; | |
| 1077 { | |
| 1078 int numero_de_botao = -1; | |
| 1079 | |
| 1080 if (!key_event_p) | |
| 1081 numero_de_botao = x_event->xbutton.button; | |
| 1082 | |
| 1083 /* the button gets noted either in the button or the modifiers | |
| 1084 field, but not both. */ | |
| 1085 if (numero_de_botao != 1 && (*state & Button1Mask)) | |
| 1086 modifiers |= XEMACS_MOD_BUTTON1; | |
| 1087 if (numero_de_botao != 2 && (*state & Button2Mask)) | |
| 1088 modifiers |= XEMACS_MOD_BUTTON2; | |
| 1089 if (numero_de_botao != 3 && (*state & Button3Mask)) | |
| 1090 modifiers |= XEMACS_MOD_BUTTON3; | |
| 1091 if (numero_de_botao != 4 && (*state & Button4Mask)) | |
| 1092 modifiers |= XEMACS_MOD_BUTTON4; | |
| 1093 if (numero_de_botao != 5 && (*state & Button5Mask)) | |
| 1094 modifiers |= XEMACS_MOD_BUTTON5; | |
| 1095 } | |
| 428 | 1096 |
| 1097 /* Ignore the Caps_Lock key if: | |
| 1098 - any other modifiers are down, so that Caps_Lock doesn't | |
| 1099 turn C-x into C-X, which would suck. | |
| 1100 - the event was a mouse event. */ | |
| 1101 if (modifiers || ! key_event_p) | |
| 1102 *state &= (~LockMask); | |
| 1103 | |
| 1104 shift_p = *state & ShiftMask; | |
| 1105 lock_p = *state & LockMask; | |
| 1106 | |
| 1107 if (shift_p || lock_p) | |
| 442 | 1108 modifiers |= XEMACS_MOD_SHIFT; |
| 428 | 1109 |
| 1110 if (key_event_p) | |
| 1111 { | |
| 1112 Lisp_Object keysym; | |
| 1113 XKeyEvent *ev = &x_event->xkey; | |
| 1114 /* This used to compute the frame from the given X window and | |
| 1115 store it here, but we really don't care about the frame. */ | |
| 934 | 1116 SET_EVENT_CHANNEL (emacs_event, DEVICE_CONSOLE (d)); |
| 428 | 1117 keysym = x_to_emacs_keysym (&x_event->xkey, 0); |
| 1118 | |
| 1119 /* If the emacs keysym is nil, then that means that the X | |
| 1120 keysym was either a Modifier or NoSymbol, which | |
| 1121 probably means that we're in the midst of reading a | |
| 1122 Multi_key sequence, or a "dead" key prefix, or XIM | |
| 1123 input. Ignore it. */ | |
| 1124 if (NILP (keysym)) | |
| 1125 return 0; | |
| 1126 | |
| 3171 | 1127 /* If we have the map from keycodes to the US layout for our |
| 1128 keyboard available, store the US layout interpretation of | |
| 1129 that key in the event structure, in case a binding lookup | |
| 1130 fails and we want to fall back to the US layout binding. | |
| 1131 | |
| 1132 This _might_ be possible within an XKB framework, changing | |
| 1133 the keyboard to a US XKB layout for a moment at startup, | |
| 1134 storing the correspondance, and changing it back. But that | |
| 1135 won't work on non-XKB servers, it makes our already slow | |
| 1136 startup slower, and it's not clear that it's really any | |
| 1137 easier or more maintainable than storing a correspondence in | |
| 1138 Lisp. */ | |
| 1139 | |
| 1140 if (!NILP(Vx_us_keymap_description) && | |
| 1141 VECTORP(Vx_us_keymap_description) && | |
| 1142 ev->keycode >= (unsigned)Vx_us_keymap_first_keycode && | |
| 1143 ev->keycode | |
| 1144 < (unsigned)XVECTOR_LENGTH(Vx_us_keymap_description)) | |
| 1145 { | |
| 1146 Lisp_Object entr = XVECTOR_DATA(Vx_us_keymap_description) | |
| 1147 [ev->keycode - Vx_us_keymap_first_keycode]; | |
| 1148 Ichar alternate = '\0'; | |
| 1149 | |
| 1150 if (!NILP (entr)) | |
| 1151 { | |
| 1152 if (CHARP(entr)) | |
| 1153 { | |
| 1154 alternate = XCHAR(entr); | |
| 1155 } | |
| 1156 else if (VECTORP(entr)) | |
| 1157 { | |
| 1158 if (modifiers & XEMACS_MOD_SHIFT | |
| 1159 && XVECTOR_LENGTH(Vx_us_keymap_description) > 1) | |
| 1160 { | |
| 1161 entr = XVECTOR_DATA(entr)[1]; | |
| 1162 if (CHARP(entr)) | |
| 1163 { | |
| 1164 alternate = XCHAR(entr); | |
| 1165 } | |
| 1166 } | |
| 1167 else if (XVECTOR_LENGTH(Vx_us_keymap_description) | |
| 1168 > 0) | |
| 1169 { | |
| 1170 entr = XVECTOR_DATA(entr)[0]; | |
| 1171 if (CHARP(entr)) | |
| 1172 { | |
| 1173 alternate = XCHAR(entr); | |
| 1174 } | |
| 1175 } | |
| 1176 } | |
| 1177 if ('\0' != alternate) | |
| 1178 { | |
| 1179 SET_EVENT_KEY_ALT_KEYCHARS(emacs_event, KEYCHAR_QWERTY, | |
| 1180 alternate); | |
| 1181 } | |
| 1182 } | |
| 1183 } | |
| 1184 | |
| 428 | 1185 /* More Caps_Lock garbage: Caps_Lock should *only* add the |
| 1186 shift modifier to two-case keys (that is, A-Z and | |
| 1187 related characters). So at this point (after looking up | |
| 1188 the keysym) if the keysym isn't a dual-case alphabetic, | |
| 1189 and if the caps lock key was down but the shift key | |
| 1190 wasn't, then turn off the shift modifier. Gag barf */ | |
| 2828 | 1191 |
| 428 | 1192 /* #### type lossage: assuming equivalence of emacs and |
| 2828 | 1193 X keysyms |
| 1194 | |
| 1195 The right thing to do here is to have pass a third, pointer, | |
| 1196 argument to x_to_emacs_keysym, where it should store the | |
| 1197 intermediate KeySym it used to calculate the string XEmacs | |
| 1198 keysym. Then we can call keysym_obeys_caps_lock_p with | |
| 1199 exactly the right argument. */ | |
| 3171 | 1200 |
| 2828 | 1201 /* !!#### maybe fix for Mule |
| 1202 | |
| 1203 Hard, in the absence of a full case infrastructure for | |
| 1204 Mule characters. When | |
| 1205 (downcase (make-char 'cyrillic-iso8859-5 73)) | |
| 1206 works, we should revisit it. */ | |
| 1207 | |
| 428 | 1208 if (lock_p && !shift_p && |
| 1209 ! (CHAR_OR_CHAR_INTP (keysym) | |
| 1210 && keysym_obeys_caps_lock_p | |
| 1211 ((KeySym) XCHAR_OR_CHAR_INT (keysym), d))) | |
| 442 | 1212 modifiers &= (~XEMACS_MOD_SHIFT); |
| 428 | 1213 |
| 1214 /* If this key contains two distinct keysyms, that is, | |
| 1215 "shift" generates a different keysym than the | |
| 1216 non-shifted key, then don't apply the shift modifier | |
| 1217 bit: it's implicit. Otherwise, if there would be no | |
| 1218 other way to tell the difference between the shifted | |
| 1219 and unshifted version of this key, apply the shift bit. | |
| 1220 Non-graphics, like Backspace and F1 get the shift bit | |
| 1221 in the modifiers slot. Neither the characters "a", | |
| 1222 "A", "2", nor "@" normally have the shift bit set. | |
| 1223 However, "F1" normally does. */ | |
| 3171 | 1224 |
| 442 | 1225 if (modifiers & XEMACS_MOD_SHIFT) |
| 428 | 1226 { |
| 1227 int Mode_switch_p = *state & xd->ModeMask; | |
| 1228 KeySym bot = XLookupKeysym (ev, Mode_switch_p ? 2 : 0); | |
| 1229 KeySym top = XLookupKeysym (ev, Mode_switch_p ? 3 : 1); | |
| 1230 if (top && bot && top != bot) | |
| 442 | 1231 modifiers &= ~XEMACS_MOD_SHIFT; |
| 428 | 1232 } |
| 934 | 1233 set_event_type (emacs_event, key_press_event); |
| 1234 SET_EVENT_TIMESTAMP (emacs_event, ev->time); | |
| 1204 | 1235 SET_EVENT_KEY_MODIFIERS (emacs_event, modifiers); |
| 1236 SET_EVENT_KEY_KEYSYM (emacs_event, keysym); | |
| 428 | 1237 } |
| 1238 else /* Mouse press/release event */ | |
| 1239 { | |
| 1240 XButtonEvent *ev = &x_event->xbutton; | |
| 1241 struct frame *frame = x_window_to_frame (d, ev->window); | |
| 1242 | |
| 1243 if (! frame) | |
| 1244 return 0; /* not for us */ | |
| 934 | 1245 set_event_type (emacs_event, (x_event->type == ButtonPress) ? |
| 1246 button_press_event : button_release_event); | |
| 1204 | 1247 SET_EVENT_CHANNEL (emacs_event, wrap_frame (frame)); |
| 1248 | |
| 1249 SET_EVENT_BUTTON_MODIFIERS (emacs_event, modifiers); | |
| 934 | 1250 SET_EVENT_TIMESTAMP (emacs_event, ev->time); |
| 1204 | 1251 SET_EVENT_BUTTON_BUTTON (emacs_event, ev->button); |
| 1252 SET_EVENT_BUTTON_X (emacs_event, ev->x); | |
| 1253 SET_EVENT_BUTTON_Y (emacs_event, ev->y); | |
| 428 | 1254 /* because we don't seem to get a FocusIn event for button clicks |
| 1255 when a widget-glyph is selected we will assume that we want the | |
| 1256 focus if a button gets pressed. */ | |
| 1257 if (x_event->type == ButtonPress) | |
| 1258 handle_focus_event_1 (frame, 1); | |
| 1259 } | |
| 1260 } | |
| 1261 break; | |
| 1262 | |
| 1263 case MotionNotify: | |
| 1264 { | |
| 1265 XMotionEvent *ev = &x_event->xmotion; | |
| 1266 struct frame *frame = x_window_to_frame (d, ev->window); | |
| 442 | 1267 int modifiers = 0; |
| 428 | 1268 XMotionEvent event2; |
| 1269 | |
| 1270 if (! frame) | |
| 1271 return 0; /* not for us */ | |
| 1272 | |
| 1273 /* We use MotionHintMask, so we will get only one motion event | |
| 1274 until the next time we call XQueryPointer or the user | |
| 1275 clicks the mouse. So call XQueryPointer now (meaning that | |
| 1276 the event will be in sync with the server just before | |
| 1277 Fnext_event() returns). If the mouse is still in motion, | |
| 1278 then the server will immediately generate exactly one more | |
| 1279 motion event, which will be on the queue waiting for us | |
| 1280 next time around. */ | |
| 1281 event2 = *ev; | |
| 1282 if (XQueryPointer (event2.display, event2.window, | |
| 1283 &event2.root, &event2.subwindow, | |
| 1284 &event2.x_root, &event2.y_root, | |
| 1285 &event2.x, &event2.y, | |
| 1286 &event2.state)) | |
| 1287 ev = &event2; /* only one structure copy */ | |
| 1288 | |
| 1289 DEVICE_X_MOUSE_TIMESTAMP (d) = ev->time; | |
| 1204 | 1290 SET_EVENT_CHANNEL (emacs_event, wrap_frame (frame)); |
| 934 | 1291 set_event_type (emacs_event, pointer_motion_event); |
| 1292 SET_EVENT_TIMESTAMP (emacs_event, ev->time); | |
| 1204 | 1293 SET_EVENT_MOTION_X (emacs_event, ev->x); |
| 1294 SET_EVENT_MOTION_Y (emacs_event, ev->y); | |
| 442 | 1295 if (ev->state & ShiftMask) modifiers |= XEMACS_MOD_SHIFT; |
| 1296 if (ev->state & ControlMask) modifiers |= XEMACS_MOD_CONTROL; | |
| 1297 if (ev->state & xd->MetaMask) modifiers |= XEMACS_MOD_META; | |
| 1298 if (ev->state & xd->SuperMask) modifiers |= XEMACS_MOD_SUPER; | |
| 1299 if (ev->state & xd->HyperMask) modifiers |= XEMACS_MOD_HYPER; | |
| 1300 if (ev->state & xd->AltMask) modifiers |= XEMACS_MOD_ALT; | |
| 1301 if (ev->state & Button1Mask) modifiers |= XEMACS_MOD_BUTTON1; | |
| 1302 if (ev->state & Button2Mask) modifiers |= XEMACS_MOD_BUTTON2; | |
| 1303 if (ev->state & Button3Mask) modifiers |= XEMACS_MOD_BUTTON3; | |
| 1304 if (ev->state & Button4Mask) modifiers |= XEMACS_MOD_BUTTON4; | |
| 1305 if (ev->state & Button5Mask) modifiers |= XEMACS_MOD_BUTTON5; | |
| 428 | 1306 /* Currently ignores Shift_Lock but probably shouldn't |
| 1307 (but it definitely should ignore Caps_Lock). */ | |
| 1204 | 1308 SET_EVENT_MOTION_MODIFIERS (emacs_event, modifiers); |
| 428 | 1309 } |
| 1310 break; | |
| 1311 | |
| 1312 case ClientMessage: | |
| 1313 { | |
| 1314 /* Patch bogus TAKE_FOCUS messages from MWM; CurrentTime is | |
| 1315 passed as the timestamp of the TAKE_FOCUS, which the ICCCM | |
| 1316 explicitly prohibits. */ | |
| 1317 XClientMessageEvent *ev = &x_event->xclient; | |
| 1318 #ifdef HAVE_OFFIX_DND | |
| 2367 | 1319 if (DndIsDropMessage (x_event)) |
| 428 | 1320 { |
| 442 | 1321 unsigned int state; |
| 1322 int modifiers = 0; | |
| 647 | 1323 int button = 0; |
| 428 | 1324 struct frame *frame = x_any_window_to_frame (d, ev->window); |
| 1325 Extbyte *data; | |
| 1326 unsigned long size, dtype; | |
| 1327 Lisp_Object l_type = Qnil, l_data = Qnil; | |
| 1328 Lisp_Object l_dndlist = Qnil, l_item = Qnil; | |
| 1329 struct gcpro gcpro1, gcpro2, gcpro3, gcpro4; | |
| 1330 | |
| 1331 if (! frame) | |
| 1332 return 0; /* not for us */ | |
| 446 | 1333 |
| 1334 GCPRO4 (l_type, l_data, l_dndlist, l_item); | |
| 934 | 1335 set_event_type (emacs_event, misc_user_event); |
| 1204 | 1336 SET_EVENT_CHANNEL (emacs_event, wrap_frame (frame)); |
| 2367 | 1337 SET_EVENT_TIMESTAMP (emacs_event, |
| 1338 DEVICE_X_LAST_SERVER_TIMESTAMP (d)); | |
| 1204 | 1339 state=DndDragButtons (x_event); |
| 428 | 1340 |
| 442 | 1341 if (state & ShiftMask) modifiers |= XEMACS_MOD_SHIFT; |
| 1342 if (state & ControlMask) modifiers |= XEMACS_MOD_CONTROL; | |
| 1343 if (state & xd->MetaMask) modifiers |= XEMACS_MOD_META; | |
| 1344 if (state & xd->SuperMask) modifiers |= XEMACS_MOD_SUPER; | |
| 1345 if (state & xd->HyperMask) modifiers |= XEMACS_MOD_HYPER; | |
| 1346 if (state & xd->AltMask) modifiers |= XEMACS_MOD_ALT; | |
| 1347 if (state & Button1Mask) modifiers |= XEMACS_MOD_BUTTON1; | |
| 1348 if (state & Button2Mask) modifiers |= XEMACS_MOD_BUTTON2; | |
| 1349 if (state & Button3Mask) modifiers |= XEMACS_MOD_BUTTON3; | |
| 1350 if (state & Button4Mask) modifiers |= XEMACS_MOD_BUTTON4; | |
| 1351 if (state & Button5Mask) modifiers |= XEMACS_MOD_BUTTON5; | |
| 428 | 1352 |
| 1353 if (state & Button5Mask) button = Button5; | |
| 1354 if (state & Button4Mask) button = Button4; | |
| 1355 if (state & Button3Mask) button = Button3; | |
| 1356 if (state & Button2Mask) button = Button2; | |
| 1357 if (state & Button1Mask) button = Button1; | |
| 1358 | |
| 1204 | 1359 SET_EVENT_MISC_USER_MODIFIERS (emacs_event, modifiers); |
| 1360 SET_EVENT_MISC_USER_BUTTON (emacs_event, button); | |
| 1361 | |
| 1362 DndDropCoordinates (FRAME_X_TEXT_WIDGET (frame), x_event, | |
| 1363 &(EVENT_MISC_USER_X (emacs_event)), | |
| 1364 &(EVENT_MISC_USER_Y (emacs_event))); | |
| 2367 | 1365 DndGetData (x_event, &data, &size); |
| 1366 | |
| 1367 dtype = DndDataType (x_event); | |
| 428 | 1368 switch (dtype) |
| 1369 { | |
| 1370 case DndFiles: /* null terminated strings, end null */ | |
| 1371 { | |
| 1372 int len; | |
| 2367 | 1373 Ibyte *hurl = NULL; |
| 428 | 1374 |
| 1375 while (*data) | |
| 1376 { | |
| 2367 | 1377 Ibyte *dataint; |
| 1378 len = strlen (data); | |
| 1379 EXTERNAL_TO_C_STRING (data, dataint, Qfile_name); | |
| 2956 | 1380 hurl = dnd_url_hexify_string (dataint, |
| 1381 (const Ibyte *) "file:"); | |
| 2367 | 1382 l_item = build_intstring (hurl); |
| 428 | 1383 l_dndlist = Fcons (l_item, l_dndlist); |
| 1384 data += len + 1; | |
| 2367 | 1385 xfree (hurl, Ibyte *); |
| 428 | 1386 } |
| 1387 l_type = Qdragdrop_URL; | |
| 1388 } | |
| 1389 break; | |
| 1390 case DndText: | |
| 1391 l_type = Qdragdrop_MIME; | |
| 2367 | 1392 l_dndlist = list1 (list3 (list1 (build_string ("text/plain")), |
| 1393 build_string ("8bit"), | |
| 1394 build_ext_string (data, | |
| 1395 Qctext))); | |
| 428 | 1396 break; |
| 1397 case DndMIME: | |
| 1398 /* we have to parse this in some way to extract | |
| 1399 content-type and params (in the tm way) and | |
| 1400 content encoding. | |
| 1401 OR: if data is string, let tm do the job | |
| 1402 if data is list[2], give the first two | |
| 1403 to tm... | |
| 1404 */ | |
| 1405 l_type = Qdragdrop_MIME; | |
| 2367 | 1406 l_dndlist = list1 (build_ext_string (data, Qbinary)); |
| 428 | 1407 break; |
| 1408 case DndFile: | |
| 1409 case DndDir: | |
| 1410 case DndLink: | |
| 1411 case DndExe: | |
| 1412 { | |
| 2367 | 1413 Ibyte *dataint, *hurl; |
| 1414 EXTERNAL_TO_C_STRING (data, dataint, Qfile_name); | |
| 1415 hurl = dnd_url_hexify_string (dataint, "file:"); | |
| 1416 l_dndlist = list1 (build_intstring (hurl)); | |
| 1417 xfree (hurl, Ibyte *); | |
| 428 | 1418 } |
| 1419 break; | |
| 1420 case DndURL: | |
| 1421 /* as it is a real URL it should already be escaped | |
| 1422 and escaping again will break them (cause % is unsave) */ | |
| 2367 | 1423 l_dndlist = list1 (build_ext_string (data, |
| 1424 Qfile_name)); | |
| 428 | 1425 l_type = Qdragdrop_URL; |
| 1426 break; | |
| 1427 default: /* Unknown, RawData and any other type */ | |
| 2367 | 1428 l_dndlist = list1 (list3 (list1 (build_string |
| 1429 ("application/octet-stream")), | |
| 1430 build_string ("8bit"), | |
| 1431 make_ext_string (data, size, | |
| 1432 Qbinary))); | |
| 428 | 1433 l_type = Qdragdrop_MIME; |
| 1434 break; | |
| 1435 } | |
| 1436 | |
| 2367 | 1437 SET_EVENT_MISC_USER_FUNCTION (emacs_event, |
| 1438 Qdragdrop_drop_dispatch); | |
| 1439 SET_EVENT_MISC_USER_OBJECT (emacs_event, | |
| 1440 Fcons (l_type, l_dndlist)); | |
| 428 | 1441 |
| 1442 UNGCPRO; | |
| 1443 | |
| 1444 break; | |
| 1445 } | |
| 1446 #endif /* HAVE_OFFIX_DND */ | |
| 1447 if (ev->message_type == DEVICE_XATOM_WM_PROTOCOLS (d) | |
| 1448 && (Atom) (ev->data.l[0]) == DEVICE_XATOM_WM_TAKE_FOCUS (d) | |
| 1449 && (Atom) (ev->data.l[1]) == 0) | |
| 1450 { | |
| 1451 ev->data.l[1] = DEVICE_X_LAST_SERVER_TIMESTAMP (d); | |
| 1452 } | |
| 1453 } | |
| 1454 /* fall through */ | |
| 1455 | |
| 1456 default: /* it's a magic event */ | |
| 1457 { | |
| 1458 struct frame *frame; | |
| 1459 Window w; | |
| 934 | 1460 XEvent *x_event_copy; |
| 1461 SET_EVENT_TYPE (emacs_event, magic_event); | |
| 1204 | 1462 x_event_copy = &EVENT_MAGIC_X_EVENT (emacs_event); |
| 428 | 1463 |
| 1464 #define FROB(event_member, window_member) \ | |
| 1465 x_event_copy->event_member = x_event->event_member; \ | |
| 1466 w = x_event->event_member.window_member | |
| 1467 | |
| 1468 switch (x_event->type) | |
| 1469 { | |
| 1470 case SelectionRequest: FROB(xselectionrequest, owner); break; | |
| 1471 case SelectionClear: FROB(xselectionclear, window); break; | |
| 1472 case SelectionNotify: FROB(xselection, requestor); break; | |
| 1473 case PropertyNotify: FROB(xproperty, window); break; | |
| 1474 case ClientMessage: FROB(xclient, window); break; | |
| 1475 case ConfigureNotify: FROB(xconfigure, window); break; | |
| 1476 case Expose: | |
| 1477 case GraphicsExpose: FROB(xexpose, window); break; | |
| 1478 case MapNotify: | |
| 1479 case UnmapNotify: FROB(xmap, window); break; | |
| 1480 case EnterNotify: | |
| 1481 case LeaveNotify: FROB(xcrossing, window); break; | |
| 1482 case FocusIn: | |
| 1483 case FocusOut: FROB(xfocus, window); break; | |
| 1484 case VisibilityNotify: FROB(xvisibility, window); break; | |
| 442 | 1485 case CreateNotify: FROB(xcreatewindow, window); break; |
| 428 | 1486 default: |
| 1487 w = x_event->xany.window; | |
| 1488 *x_event_copy = *x_event; | |
| 1489 break; | |
| 1490 } | |
| 1491 #undef FROB | |
| 1492 frame = x_any_window_to_frame (d, w); | |
| 1493 | |
| 1494 if (!frame) | |
| 1495 return 0; | |
| 1496 | |
| 1204 | 1497 SET_EVENT_CHANNEL (emacs_event, wrap_frame (frame)); |
| 428 | 1498 break; |
| 1499 } | |
| 1500 } | |
| 1501 return 1; | |
| 1502 } | |
| 1503 | |
| 1504 | |
| 1505 | |
| 1506 /************************************************************************/ | |
| 1507 /* magic-event handling */ | |
| 1508 /************************************************************************/ | |
| 1509 | |
| 1510 static void | |
| 1511 handle_focus_event_1 (struct frame *f, int in_p) | |
| 1512 { | |
| 863 | 1513 handle_focus_event_2 (XtWindow (FRAME_X_TEXT_WIDGET (f)), f, in_p); |
| 1514 } | |
| 1515 | |
| 1516 static void | |
| 1517 handle_focus_event_2 (Window win, struct frame *f, int in_p) | |
| 1518 { | |
| 1519 /* Although this treats focus differently for all widgets (including | |
| 1520 the frame) it seems to work ok. */ | |
| 1521 Widget needs_it = XtWindowToWidget (FRAME_X_DISPLAY (f), win); | |
| 1522 | |
| 428 | 1523 #if XtSpecificationRelease > 5 |
| 450 | 1524 widget_with_focus = XtGetKeyboardFocusWidget (FRAME_X_TEXT_WIDGET (f)); |
| 428 | 1525 #endif |
| 1526 #ifdef HAVE_XIM | |
| 1527 XIM_focus_event (f, in_p); | |
| 1528 #endif /* HAVE_XIM */ | |
| 450 | 1529 |
| 428 | 1530 /* On focus change, clear all memory of sticky modifiers |
| 1531 to avoid non-intuitive behavior. */ | |
| 1532 clear_sticky_modifiers (XDEVICE (FRAME_DEVICE (f))); | |
| 1533 | |
| 1534 /* We don't want to handle the focus change now, because we might | |
| 1535 be in an accept-process-output, sleep-for, or sit-for. So | |
| 1536 we enqueue it. | |
| 1537 | |
| 1538 Actually, we half handle it: we handle it as far as changing the | |
| 1539 box cursor for redisplay, but we don't call any hooks or do any | |
| 1540 select-frame stuff until after the sit-for. | |
| 1541 | |
| 1542 Unfortunately native widgets break the model because they grab | |
| 1543 the keyboard focus and nothing sets it back again. I cannot find | |
| 1544 any reasonable way to do this elsewhere so we assert here that | |
| 1545 the keyboard focus is on the emacs text widget. Menus and dialogs | |
| 1546 do this in their selection callback, but we don't want that since | |
| 1547 a button having focus is legitimate. An edit field having focus | |
| 1548 is mandatory. Weirdly you get a FocusOut event when you click in | |
| 442 | 1549 a widget-glyph but you don't get a corresponding FocusIn when you |
| 428 | 1550 click in the frame. Why is this? */ |
| 438 | 1551 if (in_p |
| 1552 #if XtSpecificationRelease > 5 | |
| 863 | 1553 && needs_it != widget_with_focus |
| 428 | 1554 #endif |
| 1555 ) | |
| 1556 { | |
| 863 | 1557 lw_set_keyboard_focus (FRAME_X_SHELL_WIDGET (f), needs_it); |
| 428 | 1558 } |
| 450 | 1559 |
| 863 | 1560 /* If we are focusing on a native widget then record and exit. */ |
| 1561 if (needs_it != FRAME_X_TEXT_WIDGET (f)) { | |
| 1562 widget_with_focus = needs_it; | |
| 1563 return; | |
| 1564 } | |
| 1565 | |
| 450 | 1566 /* We have the focus now. See comment in |
| 1567 emacs_Xt_handle_widget_losing_focus (). */ | |
| 1568 if (in_p) | |
| 1569 widget_with_focus = NULL; | |
| 1570 | |
| 428 | 1571 /* do the generic event-stream stuff. */ |
| 1572 { | |
| 1573 Lisp_Object frm; | |
| 1574 Lisp_Object conser; | |
| 1575 struct gcpro gcpro1; | |
| 1576 | |
| 793 | 1577 frm = wrap_frame (f); |
| 428 | 1578 conser = Fcons (frm, Fcons (FRAME_DEVICE (f), in_p ? Qt : Qnil)); |
| 1579 GCPRO1 (conser); | |
| 1580 emacs_handle_focus_change_preliminary (conser); | |
| 1581 enqueue_magic_eval_event (emacs_handle_focus_change_final, | |
| 1582 conser); | |
| 1583 UNGCPRO; | |
| 1584 } | |
| 1585 } | |
| 1586 | |
| 863 | 1587 /* Create a synthetic X focus event. */ |
| 1111 | 1588 void emacs_Xt_enqueue_focus_event (Widget wants_it, Lisp_Object frame, |
| 1589 int in_p); | |
| 863 | 1590 void |
| 1111 | 1591 emacs_Xt_enqueue_focus_event (Widget wants_it, Lisp_Object frame, int in_p) |
| 863 | 1592 { |
| 1593 Lisp_Object emacs_event = Fmake_event (Qnil, Qnil); | |
| 1594 Lisp_Event *ev = XEVENT (emacs_event); | |
| 960 | 1595 XEvent *x_event; |
| 1596 | |
| 1597 XSET_EVENT_TYPE (emacs_event, magic_event); | |
| 1204 | 1598 x_event = &EVENT_MAGIC_X_EVENT (ev); |
| 863 | 1599 |
| 1600 x_event->type = in_p ? FocusIn : FocusOut; | |
| 1601 x_event->xfocus.window = XtWindow (wants_it); | |
| 1602 | |
| 960 | 1603 SET_EVENT_CHANNEL (ev, frame); |
| 1204 | 1604 |
| 1605 enqueue_dispatch_event (emacs_event); | |
| 863 | 1606 } |
| 1607 | |
| 450 | 1608 /* The idea here is that when a widget glyph gets unmapped we don't |
| 1609 want the focus to stay with it if it has focus - because it may | |
| 863 | 1610 well just get deleted next and then we have lost the focus until the |
| 450 | 1611 user does something. So handle_focus_event_1 records the widget |
| 1612 with keyboard focus when FocusOut is processed, and then, when a | |
| 1613 widget gets unmapped, it calls this function to restore focus if | |
| 1614 appropriate. */ | |
| 853 | 1615 void emacs_Xt_handle_widget_losing_focus (struct frame *f, Widget losing_widget); |
| 450 | 1616 void |
| 853 | 1617 emacs_Xt_handle_widget_losing_focus (struct frame *f, Widget losing_widget) |
| 450 | 1618 { |
| 1619 if (losing_widget == widget_with_focus) | |
| 1620 { | |
| 1621 handle_focus_event_1 (f, 1); | |
| 1622 } | |
| 1623 } | |
| 1624 | |
| 428 | 1625 /* This is called from the external-widget code */ |
| 1626 | |
| 1627 void emacs_Xt_handle_focus_event (XEvent *event); | |
| 1628 void | |
| 1629 emacs_Xt_handle_focus_event (XEvent *event) | |
| 1630 { | |
| 1631 struct device *d = get_device_from_display (event->xany.display); | |
| 1632 struct frame *f; | |
| 1633 | |
| 1634 if (DEVICE_X_BEING_DELETED (d)) | |
| 1635 return; | |
| 1636 | |
| 1637 /* | |
| 1638 * It's curious that we're using x_any_window_to_frame() instead | |
| 1639 * of x_window_to_frame(). I don't know what the impact of this is. | |
| 1640 */ | |
| 1641 f = x_any_window_to_frame (d, event->xfocus.window); | |
| 1642 if (!f) | |
| 1643 /* focus events are sometimes generated just before | |
| 1644 a frame is destroyed. */ | |
| 1645 return; | |
| 1646 handle_focus_event_1 (f, event->type == FocusIn); | |
| 1647 } | |
| 1648 | |
| 1649 /* both MapNotify and VisibilityNotify can cause this | |
| 1650 JV is_visible has the same semantics as f->visible*/ | |
| 1651 static void | |
| 1652 change_frame_visibility (struct frame *f, int is_visible) | |
| 1653 { | |
| 793 | 1654 Lisp_Object frame = wrap_frame (f); |
| 1655 | |
| 428 | 1656 |
| 1657 if (!FRAME_VISIBLE_P (f) && is_visible) | |
| 1658 { | |
| 1659 FRAME_VISIBLE_P (f) = is_visible; | |
| 872 | 1660 /* [[ This improves the double flicker when uniconifying a frame |
| 428 | 1661 some. A lot of it is not showing a buffer which has changed |
| 1662 while the frame was iconified. To fix it further requires | |
| 872 | 1663 the good 'ol double redisplay structure. ]] -- comment is |
| 1664 invalid, obviously predates 19.12, when the double redisplay | |
| 1665 structure (i.e. current + desired) was put back in. --ben */ | |
| 428 | 1666 MARK_FRAME_WINDOWS_STRUCTURE_CHANGED (f); |
| 1667 va_run_hook_with_args (Qmap_frame_hook, 1, frame); | |
| 1668 } | |
| 1669 else if (FRAME_VISIBLE_P (f) && !is_visible) | |
| 1670 { | |
| 1671 FRAME_VISIBLE_P (f) = 0; | |
| 1672 va_run_hook_with_args (Qunmap_frame_hook, 1, frame); | |
| 1673 } | |
| 1674 else if (FRAME_VISIBLE_P (f) * is_visible < 0) | |
| 1675 { | |
| 1676 FRAME_VISIBLE_P(f) = - FRAME_VISIBLE_P(f); | |
| 1677 if (FRAME_REPAINT_P(f)) | |
| 1678 MARK_FRAME_WINDOWS_STRUCTURE_CHANGED (f); | |
| 1679 va_run_hook_with_args (Qmap_frame_hook, 1, frame); | |
| 1680 } | |
| 1681 } | |
| 1682 | |
| 1683 static void | |
| 593 | 1684 update_frame_iconify_status (struct frame *f) |
| 1685 { | |
| 1686 f->iconified = (x_frame_window_state (f) == IconicState); | |
| 1687 } | |
| 1688 | |
| 1689 static void | |
| 428 | 1690 handle_map_event (struct frame *f, XEvent *event) |
| 1691 { | |
| 593 | 1692 |
| 1693 /* It seems that, given the multiplicity of window managers and X | |
| 1694 implementations, plus the fact that X was designed without | |
| 1695 window managers or icons in mind and this was then grafted on | |
| 1696 with about the skill of a drunk freshman med student attempting | |
| 1697 surgery with a rusty razor blade, we cannot treat any off | |
| 1698 MapNotify/UnmapNotify/VisibilityNotify as more than vague hints | |
| 1699 as to the actual situation. | |
| 1700 | |
| 1701 So we should just query the actual status. Unfortunately, things | |
| 1702 are worse because (a) there aren't obvious ways to query some | |
| 1703 of these values (e.g. "totally visible"), and (b) there may be | |
| 1704 race conditions (see below). | |
| 1705 | |
| 638 | 1706 However, according to the ICCCM, there's a specific way to |
| 593 | 1707 ask the window manager whether the state is (a) visible, |
| 1708 (b) iconic, (c) withdrawn. It must be one of these three. | |
| 1709 We already use this call to check for the iconified state. | |
| 1710 I'd suggest we do the same for visible (i.e. NormalState), | |
| 1711 and scrap most of the nasty code below. | |
| 1712 | |
| 1713 --ben | |
| 1714 */ | |
| 1715 | |
| 1716 update_frame_iconify_status (f); | |
| 1717 | |
| 1718 /* #### Ben suggests rewriting the code below using | |
| 1719 x_frame_window_state (f). */ | |
| 1720 | |
| 428 | 1721 if (event->type == MapNotify) |
| 1722 { | |
| 1723 XWindowAttributes xwa; | |
| 1724 | |
| 1725 /* Bleagh!!!!!! Apparently some window managers (e.g. MWM) | |
| 1726 send synthetic MapNotify events when a window is first | |
| 1727 created, EVEN IF IT'S CREATED ICONIFIED OR INVISIBLE. | |
| 1728 Or something like that. We initially tried a different | |
| 1729 solution below, but that ran into a different window- | |
| 1730 manager bug. | |
| 1731 | |
| 1732 It seems that the only reliable way is to treat a | |
| 1733 MapNotify event as a "hint" that the window might or | |
| 1734 might not be visible, and check explicitly. */ | |
| 1735 | |
| 1736 XGetWindowAttributes (event->xany.display, event->xmap.window, | |
| 1737 &xwa); | |
| 1738 if (xwa.map_state != IsViewable) | |
| 593 | 1739 return; |
| 428 | 1740 |
| 1741 FRAME_X_TOTALLY_VISIBLE_P (f) = 1; | |
| 1742 #if 0 | |
| 1743 /* Bleagh again!!!! We initially tried the following hack | |
| 1744 around the MWM problem, but it turns out that TWM | |
| 1745 has a race condition when you un-iconify, where it maps | |
| 1746 the window and then tells the server that the window | |
| 1747 is un-iconified. Usually, XEmacs wakes up between | |
| 1748 those two occurrences, and thus thinks that un-iconified | |
| 1749 windows are still iconified. | |
| 1750 | |
| 1751 Ah, the joys of X. */ | |
| 1752 | |
| 1753 /* By Emacs definition, a frame that is iconified is not | |
| 1754 visible. Marking a frame as visible will automatically cause | |
| 1755 frame-iconified-p to return nil, regardless of whether the | |
| 1756 frame is actually iconified. Therefore, we have to ignore | |
| 1757 MapNotify events on iconified frames. (It's not obvious | |
| 1758 to me why these are being sent, but it happens at startup | |
| 1759 with frames that are initially iconified; perhaps they are | |
| 1760 synthetic MapNotify events coming from the window manager.) | |
| 1761 Note that `frame-iconified-p' queries the server | |
| 1762 to determine whether the frame is currently iconified, | |
| 1763 rather than consulting some internal (and likely | |
| 1764 inaccurate) state flag. Therefore, ignoring the MapNotify | |
| 1765 is correct. */ | |
| 793 | 1766 if (!FRAME_VISIBLE_P (f) && NILP (Fframe_iconified_p (wrap_frame (f)))) |
| 428 | 1767 #endif /* 0 */ |
| 1768 change_frame_visibility (f, 1); | |
| 1769 } | |
| 1770 else | |
| 1771 { | |
| 1772 FRAME_X_TOTALLY_VISIBLE_P (f) = 0; | |
| 1773 change_frame_visibility (f, 0); | |
| 1774 } | |
| 1775 } | |
| 1776 | |
| 1777 static void | |
| 1778 handle_client_message (struct frame *f, XEvent *event) | |
| 1779 { | |
| 1780 struct device *d = XDEVICE (FRAME_DEVICE (f)); | |
| 793 | 1781 Lisp_Object frame = wrap_frame (f); |
| 428 | 1782 |
| 1783 if (event->xclient.message_type == DEVICE_XATOM_WM_PROTOCOLS (d) && | |
| 1784 (Atom) (event->xclient.data.l[0]) == DEVICE_XATOM_WM_DELETE_WINDOW (d)) | |
| 1785 { | |
| 1786 /* WM_DELETE_WINDOW is a misc-user event, but other ClientMessages, | |
| 1787 such as WM_TAKE_FOCUS, are eval events. That's because delete-window | |
| 1788 was probably executed with a mouse click, while the others could | |
| 1789 have been sent as a result of mouse motion or some other implicit | |
| 1790 action. (Call this a "heuristic"...) The reason for caring about | |
| 1791 this is so that clicking on the close-box will make emacs prompt | |
| 1792 using a dialog box instead of the minibuffer if there are unsaved | |
| 1793 buffers. | |
| 1794 */ | |
| 1795 enqueue_misc_user_event (frame, Qeval, | |
| 1796 list3 (Qdelete_frame, frame, Qt)); | |
| 1797 } | |
| 1798 else if (event->xclient.message_type == DEVICE_XATOM_WM_PROTOCOLS (d) && | |
| 1799 (Atom) event->xclient.data.l[0] == DEVICE_XATOM_WM_TAKE_FOCUS (d)) | |
| 1800 { | |
| 1801 handle_focus_event_1 (f, 1); | |
| 1802 #if 0 | |
| 1803 /* If there is a dialog box up, focus on it. | |
| 1804 | |
| 1805 #### Actually, we're raising it too, which is wrong. We should | |
| 1806 #### just focus on it, but lwlib doesn't currently give us an | |
| 1807 #### easy way to do that. This should be fixed. | |
| 1808 */ | |
| 1809 unsigned long take_focus_timestamp = event->xclient.data.l[1]; | |
| 1810 Widget widget = lw_raise_all_pop_up_widgets (); | |
| 1811 if (widget) | |
| 1812 { | |
| 1813 /* kludge: raise_all returns bottommost widget, but we really | |
| 1814 want the topmost. So just raise it for now. */ | |
| 1815 XMapRaised (XtDisplay (widget), XtWindow (widget)); | |
| 1816 /* Grab the focus with the timestamp of the TAKE_FOCUS. */ | |
| 1817 XSetInputFocus (XtDisplay (widget), XtWindow (widget), | |
| 1818 RevertToParent, take_focus_timestamp); | |
| 1819 } | |
| 1820 #endif | |
| 1821 } | |
| 1822 } | |
| 1823 | |
| 448 | 1824 /* #### I'm struggling to understand how the X event loop really works. |
| 1825 Here is the problem: | |
| 1826 | |
| 1827 When widgets get mapped / changed etc the actual display updates | |
| 1828 are done asynchronously via X events being processed - this | |
| 1829 normally happens when XtAppProcessEvent() gets called. However, if | |
| 1830 we are executing lisp code or even doing redisplay we won't | |
| 1831 necessarily process X events for a very long time. This has the | |
| 1832 effect of widgets only getting updated when XEmacs only goes into | |
| 1833 idle, or some other event causes processing of the X event queue. | |
| 1834 | |
| 1835 XtAppProcessEvent can get called from the following places: | |
| 1836 | |
| 1837 emacs_Xt_next_event () - this is normal event processing, almost | |
| 1838 any non-X event will take precedence and this means that we | |
| 1839 cannot rely on it to do the right thing at the right time for | |
| 1840 widget display. | |
| 1841 | |
| 1204 | 1842 emacs_Xt_drain_queue () - this happens when SIGIO gets tripped, |
| 1843 processing the event queue allows C-g to be checked for. It gets | |
| 1844 called from emacs_Xt_event_pending_p (). #### Update this comment. | |
| 448 | 1845 |
| 1846 In order to solve this I have tried introducing a list primitive - | |
| 1847 dispatch-non-command-events - which forces processing of X events | |
| 1848 related to display. Unfortunately this has a number of problems, | |
| 1849 one is that it is possible for event_stream_event_pending_p to | |
| 1850 block for ever if there isn't actually an event. I guess this can | |
| 1851 happen if we drop the synthetic event for reason. It also relies on | |
| 1852 SIGIO processing which makes things rather fragile. | |
| 1853 | |
| 1854 People have seen behaviour whereby XEmacs blocks until you move the | |
| 1855 mouse. This seems to indicate that dispatch-non-command-events is | |
| 1856 blocking. It may be that in a SIGIO world forcing SIGIO processing | |
| 1857 does the wrong thing. | |
| 1858 */ | |
| 428 | 1859 static void |
| 853 | 1860 emacs_Xt_force_event_pending (struct frame *f) |
| 442 | 1861 { |
| 1862 XEvent event; | |
| 1863 | |
| 853 | 1864 Display *dpy = DEVICE_X_DISPLAY (XDEVICE (FRAME_DEVICE (f))); |
| 442 | 1865 event.xclient.type = ClientMessage; |
| 1866 event.xclient.display = dpy; | |
| 1867 event.xclient.message_type = XInternAtom (dpy, "BumpQueue", False); | |
| 1868 event.xclient.format = 32; | |
| 1869 event.xclient.window = 0; | |
| 1870 | |
| 1871 /* Send the drop message */ | |
| 1872 XSendEvent(dpy, XtWindow (FRAME_X_SHELL_WIDGET (f)), | |
| 1873 True, NoEventMask, &event); | |
| 448 | 1874 /* We rely on SIGIO and friends to realise we have generated an |
| 1875 event. */ | |
| 442 | 1876 } |
| 1877 | |
| 1878 static void | |
| 788 | 1879 emacs_Xt_format_magic_event (Lisp_Event *event, Lisp_Object pstream) |
| 1880 { | |
| 1881 Lisp_Object console = CDFW_CONSOLE (EVENT_CHANNEL (event)); | |
| 1882 if (CONSOLE_X_P (XCONSOLE (console))) | |
| 826 | 1883 write_c_string |
| 1204 | 1884 (pstream, x_event_name ((EVENT_MAGIC_X_EVENT (event)).type)); |
| 788 | 1885 } |
| 1886 | |
| 1887 static int | |
| 1888 emacs_Xt_compare_magic_event (Lisp_Event *e1, Lisp_Event *e2) | |
| 1889 { | |
| 1890 if (CONSOLE_X_P (XCONSOLE (CDFW_CONSOLE (EVENT_CHANNEL (e1)))) && | |
| 1891 CONSOLE_X_P (XCONSOLE (CDFW_CONSOLE (EVENT_CHANNEL (e2))))) | |
| 1204 | 1892 return ((EVENT_MAGIC_X_EVENT (e1)).xany.serial == |
| 1893 (EVENT_MAGIC_X_EVENT (e2)).xany.serial); | |
| 788 | 1894 if (CONSOLE_X_P (XCONSOLE (CDFW_CONSOLE (EVENT_CHANNEL (e1)))) || |
| 1895 CONSOLE_X_P (XCONSOLE (CDFW_CONSOLE (EVENT_CHANNEL (e2))))) | |
| 1896 return 0; | |
| 1897 return 1; | |
| 1898 } | |
| 1899 | |
| 1900 static Hashcode | |
| 1901 emacs_Xt_hash_magic_event (Lisp_Event *e) | |
| 1902 { | |
| 1903 Lisp_Object console = CDFW_CONSOLE (EVENT_CHANNEL (e)); | |
| 1904 if (CONSOLE_X_P (XCONSOLE (console))) | |
| 1204 | 1905 return (EVENT_MAGIC_X_EVENT (e)).xany.serial; |
| 788 | 1906 return 0; |
| 1907 } | |
| 1908 | |
| 1909 static void | |
| 440 | 1910 emacs_Xt_handle_magic_event (Lisp_Event *emacs_event) |
| 428 | 1911 { |
| 1912 /* This function can GC */ | |
| 1204 | 1913 XEvent *event = &EVENT_MAGIC_X_EVENT (emacs_event); |
| 428 | 1914 struct frame *f = XFRAME (EVENT_CHANNEL (emacs_event)); |
| 1915 | |
| 1916 if (!FRAME_LIVE_P (f) || DEVICE_X_BEING_DELETED (XDEVICE (FRAME_DEVICE (f)))) | |
| 1917 return; | |
| 1918 | |
| 1919 switch (event->type) | |
| 1920 { | |
| 1921 case SelectionRequest: | |
| 1922 x_handle_selection_request (&event->xselectionrequest); | |
| 1923 break; | |
| 934 | 1924 |
| 428 | 1925 case SelectionClear: |
| 1926 x_handle_selection_clear (&event->xselectionclear); | |
| 1927 break; | |
| 934 | 1928 |
| 428 | 1929 case SelectionNotify: |
| 1930 x_handle_selection_notify (&event->xselection); | |
| 1931 break; | |
| 934 | 1932 |
| 428 | 1933 case PropertyNotify: |
| 1934 x_handle_property_notify (&event->xproperty); | |
| 1935 break; | |
| 934 | 1936 |
| 428 | 1937 case Expose: |
| 1938 if (!check_for_ignored_expose (f, event->xexpose.x, event->xexpose.y, | |
| 1318 | 1939 event->xexpose.width, |
| 1940 event->xexpose.height) | |
| 428 | 1941 && |
| 1942 !find_matching_subwindow (f, event->xexpose.x, event->xexpose.y, | |
| 1943 event->xexpose.width, event->xexpose.height)) | |
| 1318 | 1944 redisplay_redraw_exposed_area (f, event->xexpose.x, event->xexpose.y, |
| 1945 event->xexpose.width, | |
| 1946 event->xexpose.height); | |
| 428 | 1947 break; |
| 1948 | |
| 1949 case GraphicsExpose: /* This occurs when an XCopyArea's source area was | |
| 1950 obscured or not available. */ | |
| 1318 | 1951 redisplay_redraw_exposed_area (f, event->xexpose.x, event->xexpose.y, |
| 1952 event->xexpose.width, | |
| 1953 event->xexpose.height); | |
| 428 | 1954 break; |
| 1955 | |
| 1956 case MapNotify: | |
| 1957 case UnmapNotify: | |
| 1958 handle_map_event (f, event); | |
| 1959 break; | |
| 1960 | |
| 1961 case EnterNotify: | |
| 1962 if (event->xcrossing.detail != NotifyInferior) | |
| 1963 { | |
| 793 | 1964 Lisp_Object frame = wrap_frame (f); |
| 1965 | |
| 428 | 1966 /* FRAME_X_MOUSE_P (f) = 1; */ |
| 1967 va_run_hook_with_args (Qmouse_enter_frame_hook, 1, frame); | |
| 1968 } | |
| 1969 break; | |
| 1970 | |
| 1971 case LeaveNotify: | |
| 1972 if (event->xcrossing.detail != NotifyInferior) | |
| 1973 { | |
| 793 | 1974 Lisp_Object frame = wrap_frame (f); |
| 1975 | |
| 428 | 1976 /* FRAME_X_MOUSE_P (f) = 0; */ |
| 1977 va_run_hook_with_args (Qmouse_leave_frame_hook, 1, frame); | |
| 1978 } | |
| 1979 break; | |
| 1980 | |
| 1981 case FocusIn: | |
| 1982 case FocusOut: | |
| 1983 | |
| 1984 #ifdef EXTERNAL_WIDGET | |
| 1985 /* External widget lossage: Ben said: | |
| 1986 YUCK. The only way to make focus changes work properly is to | |
| 1987 completely ignore all FocusIn/FocusOut events and depend only | |
| 1988 on notifications from the ExternalClient widget. */ | |
| 1989 if (FRAME_X_EXTERNAL_WINDOW_P (f)) | |
| 1990 break; | |
| 1991 #endif | |
| 863 | 1992 handle_focus_event_2 (event->xfocus.window, f, event->type == FocusIn); |
| 428 | 1993 break; |
| 1994 | |
| 1995 case ClientMessage: | |
| 1996 handle_client_message (f, event); | |
| 1997 break; | |
| 1998 | |
| 1999 case VisibilityNotify: /* window visibility has changed */ | |
| 2000 if (event->xvisibility.window == XtWindow (FRAME_X_SHELL_WIDGET (f))) | |
| 2001 { | |
| 593 | 2002 /* See comment in handle_map_event */ |
| 2003 update_frame_iconify_status (f); | |
| 2004 | |
| 2005 /* #### Ben suggests rewriting the code below using | |
| 2006 x_frame_window_state (f). */ | |
| 428 | 2007 FRAME_X_TOTALLY_VISIBLE_P (f) = |
| 2008 (event->xvisibility.state == VisibilityUnobscured); | |
| 2009 /* Note that the fvwm pager only sends VisibilityNotify when | |
| 2010 changing pages. Is this all we need to do ? JV */ | |
| 2011 /* Nope. We must at least trigger a redisplay here. | |
| 2012 Since this case seems similar to MapNotify, I've | |
| 2013 factored out some code to change_frame_visibility(). | |
| 2014 This triggers the necessary redisplay and runs | |
| 2015 (un)map-frame-hook. - dkindred@cs.cmu.edu */ | |
| 2016 /* Changed it again to support the tristate visibility flag */ | |
| 2017 change_frame_visibility (f, (event->xvisibility.state | |
| 2018 != VisibilityFullyObscured) ? 1 : -1); | |
| 2019 } | |
| 2020 break; | |
| 2021 | |
| 2022 case ConfigureNotify: | |
| 2023 #ifdef HAVE_XIM | |
| 2024 XIM_SetGeometry (f); | |
| 2025 #endif | |
| 2026 break; | |
| 2027 | |
| 442 | 2028 case CreateNotify: |
| 2029 break; | |
| 2030 | |
| 428 | 2031 default: |
| 2032 break; | |
| 2033 } | |
| 2034 } | |
| 2035 | |
| 2036 | |
| 2037 /************************************************************************/ | |
| 2038 /* timeout events */ | |
| 2039 /************************************************************************/ | |
| 2040 | |
| 2041 static int timeout_id_tick; | |
| 2042 | |
| 2043 /* Xt interval id's might not fit into an int (they're pointers, as it | |
| 2044 happens), so we need to provide a conversion list. */ | |
| 2045 | |
| 2046 static struct Xt_timeout | |
| 2047 { | |
| 2048 int id; | |
| 2049 XtIntervalId interval_id; | |
| 2050 struct Xt_timeout *next; | |
| 2051 } *pending_timeouts, *completed_timeouts; | |
| 2052 | |
| 2053 static struct Xt_timeout_blocktype | |
| 2054 { | |
| 2055 Blocktype_declare (struct Xt_timeout); | |
| 2056 } *the_Xt_timeout_blocktype; | |
| 2057 | |
| 2058 /* called by XtAppNextEvent() */ | |
| 2059 static void | |
| 2286 | 2060 Xt_timeout_callback (XtPointer closure, XtIntervalId *UNUSED (id)) |
| 428 | 2061 { |
| 2062 struct Xt_timeout *timeout = (struct Xt_timeout *) closure; | |
| 2063 struct Xt_timeout *t2 = pending_timeouts; | |
| 2064 /* Remove this one from the list of pending timeouts */ | |
| 2065 if (t2 == timeout) | |
| 2066 pending_timeouts = pending_timeouts->next; | |
| 2067 else | |
| 2068 { | |
| 2069 while (t2->next && t2->next != timeout) t2 = t2->next; | |
| 2070 assert (t2->next); | |
| 2071 t2->next = t2->next->next; | |
| 2072 } | |
| 2073 /* Add this one to the list of completed timeouts */ | |
| 2074 timeout->next = completed_timeouts; | |
| 2075 completed_timeouts = timeout; | |
| 2076 } | |
| 2077 | |
| 2078 static int | |
| 2079 emacs_Xt_add_timeout (EMACS_TIME thyme) | |
| 2080 { | |
| 2081 struct Xt_timeout *timeout = Blocktype_alloc (the_Xt_timeout_blocktype); | |
| 2082 EMACS_TIME current_time; | |
| 2083 int milliseconds; | |
| 2084 | |
| 2085 timeout->id = timeout_id_tick++; | |
| 2086 timeout->next = pending_timeouts; | |
| 2087 pending_timeouts = timeout; | |
| 2088 EMACS_GET_TIME (current_time); | |
| 2089 EMACS_SUB_TIME (thyme, thyme, current_time); | |
| 2090 milliseconds = EMACS_SECS (thyme) * 1000 + | |
| 2091 EMACS_USECS (thyme) / 1000; | |
| 2092 if (milliseconds < 1) | |
| 2093 milliseconds = 1; | |
| 2094 timeout->interval_id = XtAppAddTimeOut (Xt_app_con, milliseconds, | |
| 2095 Xt_timeout_callback, | |
| 2096 (XtPointer) timeout); | |
| 2097 return timeout->id; | |
| 2098 } | |
| 2099 | |
| 2100 static void | |
| 2101 emacs_Xt_remove_timeout (int id) | |
| 2102 { | |
| 2103 struct Xt_timeout *timeout, *t2; | |
| 2104 | |
| 2105 timeout = NULL; | |
| 2106 | |
| 2107 /* Find the timeout on the list of pending ones, if it's still there. */ | |
| 2108 if (pending_timeouts) | |
| 2109 { | |
| 2110 if (id == pending_timeouts->id) | |
| 2111 { | |
| 2112 timeout = pending_timeouts; | |
| 2113 pending_timeouts = pending_timeouts->next; | |
| 2114 } | |
| 2115 else | |
| 2116 { | |
| 2117 t2 = pending_timeouts; | |
| 2118 while (t2->next && t2->next->id != id) t2 = t2->next; | |
| 2119 if ( t2->next) /*found it */ | |
| 2120 { | |
| 2121 timeout = t2->next; | |
| 2122 t2->next = t2->next->next; | |
| 2123 } | |
| 2124 } | |
| 2125 /* if it was pending, we have removed it from the list */ | |
| 2126 if (timeout) | |
| 2127 XtRemoveTimeOut (timeout->interval_id); | |
| 2128 } | |
| 2129 | |
| 2130 /* It could be that the Xt call back was already called but we didn't convert | |
| 2131 into an Emacs event yet */ | |
| 2132 if (!timeout && completed_timeouts) | |
| 2133 { | |
| 2134 /* Code duplication! */ | |
| 2135 if (id == completed_timeouts->id) | |
| 2136 { | |
| 2137 timeout = completed_timeouts; | |
| 2138 completed_timeouts = completed_timeouts->next; | |
| 2139 } | |
| 2140 else | |
| 2141 { | |
| 2142 t2 = completed_timeouts; | |
| 2143 while (t2->next && t2->next->id != id) t2 = t2->next; | |
| 2144 if ( t2->next) /*found it */ | |
| 2145 { | |
| 2146 timeout = t2->next; | |
| 2147 t2->next = t2->next->next; | |
| 2148 } | |
| 2149 } | |
| 2150 } | |
| 2151 | |
| 2152 /* If we found the thing on the lists of timeouts, | |
| 2153 and removed it, deallocate | |
| 2154 */ | |
| 2155 if (timeout) | |
| 2156 Blocktype_free (the_Xt_timeout_blocktype, timeout); | |
| 2157 } | |
| 2158 | |
| 2159 static void | |
| 440 | 2160 Xt_timeout_to_emacs_event (Lisp_Event *emacs_event) |
| 428 | 2161 { |
| 2162 struct Xt_timeout *timeout = completed_timeouts; | |
| 2163 assert (timeout); | |
| 2164 completed_timeouts = completed_timeouts->next; | |
| 934 | 2165 /* timeout events have nil as channel */ |
| 1204 | 2166 set_event_type (emacs_event, timeout_event); |
| 934 | 2167 SET_EVENT_TIMESTAMP_ZERO (emacs_event); /* #### wrong!! */ |
| 1204 | 2168 SET_EVENT_TIMEOUT_INTERVAL_ID (emacs_event, timeout->id); |
| 2169 SET_EVENT_TIMEOUT_FUNCTION (emacs_event, Qnil); | |
| 2170 SET_EVENT_TIMEOUT_OBJECT (emacs_event, Qnil); | |
| 428 | 2171 Blocktype_free (the_Xt_timeout_blocktype, timeout); |
| 2172 } | |
| 2173 | |
| 2174 | |
| 2175 /************************************************************************/ | |
| 2176 /* process and tty events */ | |
| 2177 /************************************************************************/ | |
| 2178 | |
| 2179 struct what_is_ready_closure | |
| 2180 { | |
| 2181 int fd; | |
| 2182 Lisp_Object what; | |
| 2183 XtInputId id; | |
| 2184 }; | |
| 2185 | |
| 2186 static Lisp_Object *filedesc_with_input; | |
| 2187 static struct what_is_ready_closure **filedesc_to_what_closure; | |
| 2188 | |
| 2189 static void | |
| 2190 init_what_input_once (void) | |
| 2191 { | |
| 2192 int i; | |
| 2193 | |
| 2194 filedesc_with_input = xnew_array (Lisp_Object, MAXDESC); | |
| 2195 filedesc_to_what_closure = | |
| 2196 xnew_array (struct what_is_ready_closure *, MAXDESC); | |
| 2197 | |
| 2198 for (i = 0; i < MAXDESC; i++) | |
| 2199 { | |
| 2200 filedesc_to_what_closure[i] = 0; | |
| 2201 filedesc_with_input[i] = Qnil; | |
| 2202 } | |
| 2203 | |
| 2204 process_events_occurred = 0; | |
| 2205 tty_events_occurred = 0; | |
| 2206 } | |
| 2207 | |
| 2208 static void | |
| 2209 mark_what_as_being_ready (struct what_is_ready_closure *closure) | |
| 2210 { | |
| 2211 if (NILP (filedesc_with_input[closure->fd])) | |
| 2212 { | |
| 2213 SELECT_TYPE temp_mask; | |
| 2214 FD_ZERO (&temp_mask); | |
| 2215 FD_SET (closure->fd, &temp_mask); | |
| 2216 /* Check to make sure there's *really* input available. | |
| 2217 Sometimes things seem to get confused and this gets called | |
| 2218 for the tty fd when there's really only input available | |
| 2219 on some process's fd. (It will subsequently get called | |
| 2220 for that process's fd, so returning without setting any | |
| 2221 flags will take care of it.) To see the problem, uncomment | |
| 2222 the stderr_out below, turn NORMAL_QUIT_CHECK_TIMEOUT_MSECS | |
| 2223 down to 25, do sh -c 'xemacs -nw -q -f shell 2>/tmp/log' | |
| 2224 and press return repeatedly. (Seen under AIX & Linux.) | |
| 2225 -dkindred@cs.cmu.edu */ | |
| 2226 if (!poll_fds_for_input (temp_mask)) | |
| 2227 { | |
| 2228 #if 0 | |
| 2229 stderr_out ("mark_what_as_being_ready: no input available (fd=%d)\n", | |
| 2230 closure->fd); | |
| 2231 #endif | |
| 2232 return; | |
| 2233 } | |
| 2234 filedesc_with_input[closure->fd] = closure->what; | |
| 2235 if (PROCESSP (closure->what)) | |
| 2236 /* Don't increment this if the current process is already marked | |
| 2237 * as having input. */ | |
| 2238 process_events_occurred++; | |
| 2239 else | |
| 2240 tty_events_occurred++; | |
| 2241 } | |
| 2242 } | |
| 2243 | |
| 2244 static void | |
| 2286 | 2245 Xt_what_callback (void *closure, int *UNUSED (source), XtInputId *UNUSED (id)) |
| 428 | 2246 { |
| 2247 /* If closure is 0, then we got a fake event from a signal handler. | |
| 2248 The only purpose of this is to make XtAppProcessEvent() stop | |
| 2249 blocking. */ | |
| 2250 if (closure) | |
| 2251 mark_what_as_being_ready ((struct what_is_ready_closure *) closure); | |
| 2252 else | |
| 2253 { | |
| 2254 fake_event_occurred++; | |
| 2255 drain_signal_event_pipe (); | |
| 2256 } | |
| 2257 } | |
| 2258 | |
| 2259 static void | |
| 2260 select_filedesc (int fd, Lisp_Object what) | |
| 2261 { | |
| 2262 struct what_is_ready_closure *closure; | |
| 2263 | |
| 2264 /* If somebody is trying to select something that's already selected | |
| 2265 for, then something went wrong. The generic routines ought to | |
| 2266 detect this and error before here. */ | |
| 2267 assert (!filedesc_to_what_closure[fd]); | |
| 2268 | |
| 2269 closure = xnew (struct what_is_ready_closure); | |
| 2270 closure->fd = fd; | |
| 2271 closure->what = what; | |
| 2272 closure->id = | |
| 2273 XtAppAddInput (Xt_app_con, fd, | |
| 2274 (XtPointer) (XtInputReadMask /* | XtInputExceptMask */), | |
| 2275 Xt_what_callback, closure); | |
| 2276 filedesc_to_what_closure[fd] = closure; | |
| 2277 } | |
| 2278 | |
| 2279 static void | |
| 2280 unselect_filedesc (int fd) | |
| 2281 { | |
| 2282 struct what_is_ready_closure *closure = filedesc_to_what_closure[fd]; | |
| 2283 | |
| 2284 assert (closure); | |
| 2285 if (!NILP (filedesc_with_input[fd])) | |
| 2286 { | |
| 2287 /* We are unselecting this process before we have drained the rest of | |
| 2288 the input from it, probably from status_notify() in the command loop. | |
| 2289 This can happen like so: | |
| 2290 | |
| 2291 - We are waiting in XtAppNextEvent() | |
| 2292 - Process generates output | |
| 2293 - Process is marked as being ready | |
| 2294 - Process dies, SIGCHLD gets generated before we return (!?) | |
| 2295 It could happen I guess. | |
| 2296 - sigchld_handler() marks process as dead | |
| 2297 - Somehow we end up getting a new KeyPress event on the queue | |
| 2298 at the same time (I'm really so sure how that happens but I'm | |
| 2299 not sure it can't either so let's assume it can...). | |
| 2300 - Key events have priority so we return that instead of the proc. | |
| 2301 - Before dispatching the lisp key event we call status_notify() | |
| 2302 - Which deselects the process that SIGCHLD marked as dead. | |
| 2303 | |
| 2304 Thus we never remove it from _with_input and turn it into a lisp | |
| 2305 event, so we need to do it here. But this does not mean that we're | |
| 2306 throwing away the last block of output - status_notify() has already | |
| 2307 taken care of running the proc filter or whatever. | |
| 2308 */ | |
| 2309 filedesc_with_input[fd] = Qnil; | |
| 2310 if (PROCESSP (closure->what)) | |
| 2311 { | |
| 2312 assert (process_events_occurred > 0); | |
| 2313 process_events_occurred--; | |
| 2314 } | |
| 2315 else | |
| 2316 { | |
| 2317 assert (tty_events_occurred > 0); | |
| 2318 tty_events_occurred--; | |
| 2319 } | |
| 2320 } | |
| 2321 XtRemoveInput (closure->id); | |
| 1726 | 2322 xfree (closure, struct what_is_ready_closure *); |
| 428 | 2323 filedesc_to_what_closure[fd] = 0; |
| 2324 } | |
| 2325 | |
| 2326 static void | |
| 853 | 2327 emacs_Xt_select_process (Lisp_Process *process, int doin, int doerr) |
| 428 | 2328 { |
| 853 | 2329 Lisp_Object proc; |
| 2330 int infd, errfd; | |
| 2331 | |
| 2332 event_stream_unixoid_select_process (process, doin, doerr, &infd, &errfd); | |
| 2333 | |
| 2334 proc = wrap_process (process); | |
| 2335 if (doin) | |
| 2336 select_filedesc (infd, proc); | |
| 2337 if (doerr) | |
| 2338 select_filedesc (errfd, proc); | |
| 2339 } | |
| 2340 | |
| 2341 static void | |
| 2342 emacs_Xt_unselect_process (Lisp_Process *process, int doin, int doerr) | |
| 2343 { | |
| 2344 int infd, errfd; | |
| 2345 | |
| 2346 event_stream_unixoid_unselect_process (process, doin, doerr, &infd, &errfd); | |
| 2347 | |
| 2348 if (doin) | |
| 2349 unselect_filedesc (infd); | |
| 2350 if (doerr) | |
| 2351 unselect_filedesc (errfd); | |
| 428 | 2352 } |
| 2353 | |
| 2354 static void | |
| 853 | 2355 emacs_Xt_create_io_streams (void *inhandle, void *outhandle, |
| 2356 void *errhandle, Lisp_Object *instream, | |
| 2357 Lisp_Object *outstream, | |
| 2358 Lisp_Object *errstream, | |
| 2359 USID *in_usid, | |
| 2360 USID *err_usid, | |
| 2361 int flags) | |
| 428 | 2362 { |
| 853 | 2363 event_stream_unixoid_create_io_streams |
| 2364 (inhandle, outhandle, errhandle, instream, outstream, | |
| 2365 errstream, in_usid, err_usid, flags); | |
| 2366 if (*in_usid != USID_ERROR) | |
| 2367 *in_usid = USID_DONTHASH; | |
| 2368 if (*err_usid != USID_ERROR) | |
| 2369 *err_usid = USID_DONTHASH; | |
| 428 | 2370 } |
| 2371 | |
| 853 | 2372 static void |
| 2373 emacs_Xt_delete_io_streams (Lisp_Object instream, | |
| 2374 Lisp_Object outstream, | |
| 2375 Lisp_Object errstream, | |
| 2376 USID *in_usid, | |
| 2377 USID *err_usid) | |
| 428 | 2378 { |
| 853 | 2379 event_stream_unixoid_delete_io_streams |
| 2380 (instream, outstream, errstream, in_usid, err_usid); | |
| 2381 *in_usid = USID_DONTHASH; | |
| 2382 *err_usid = USID_DONTHASH; | |
| 428 | 2383 } |
| 2384 | |
| 2385 /* This is called from GC when a process object is about to be freed. | |
| 2386 If we've still got pointers to it in this file, we're gonna lose hard. | |
| 2387 */ | |
| 2388 void | |
| 2286 | 2389 debug_process_finalization (Lisp_Process *UNUSED (p)) |
| 428 | 2390 { |
| 2391 #if 0 /* #### */ | |
| 2392 int i; | |
| 853 | 2393 Lisp_Object instr, outstr, errstr; |
| 2394 | |
| 2395 get_process_streams (p, &instr, &outstr, &errstr); | |
| 428 | 2396 /* if it still has fds, then it hasn't been killed yet. */ |
| 2397 assert (NILP(instr)); | |
| 2398 assert (NILP(outstr)); | |
| 853 | 2399 assert (NILP(errstr)); |
| 428 | 2400 /* Better not still be in the "with input" table; we know it's got no fds. */ |
| 2401 for (i = 0; i < MAXDESC; i++) | |
| 2402 { | |
| 2403 Lisp_Object process = filedesc_fds_with_input [i]; | |
| 2404 assert (!PROCESSP (process) || XPROCESS (process) != p); | |
| 2405 } | |
| 2406 #endif | |
| 2407 } | |
| 2408 | |
| 2409 static void | |
| 440 | 2410 Xt_process_to_emacs_event (Lisp_Event *emacs_event) |
| 428 | 2411 { |
| 2412 int i; | |
| 2413 | |
| 2414 assert (process_events_occurred > 0); | |
| 438 | 2415 |
| 428 | 2416 for (i = 0; i < MAXDESC; i++) |
| 2417 { | |
| 438 | 2418 Lisp_Object process = filedesc_with_input[i]; |
| 428 | 2419 if (PROCESSP (process)) |
| 438 | 2420 { |
| 2421 filedesc_with_input[i] = Qnil; | |
| 2422 process_events_occurred--; | |
| 2423 /* process events have nil as channel */ | |
| 934 | 2424 set_event_type (emacs_event, process_event); |
| 2425 SET_EVENT_TIMESTAMP_ZERO (emacs_event); /* #### */ | |
| 1204 | 2426 SET_EVENT_PROCESS_PROCESS (emacs_event, process); |
| 438 | 2427 return; |
| 2428 } | |
| 428 | 2429 } |
| 2500 | 2430 ABORT (); |
| 428 | 2431 } |
| 2432 | |
| 2433 static void | |
| 2434 emacs_Xt_select_console (struct console *con) | |
| 2435 { | |
| 2436 Lisp_Object console; | |
| 2437 int infd; | |
| 2438 | |
| 2439 if (CONSOLE_X_P (con)) | |
| 2440 return; /* X consoles are automatically selected for when we | |
| 2441 initialize them in Xt */ | |
| 2442 infd = event_stream_unixoid_select_console (con); | |
| 793 | 2443 console = wrap_console (con); |
| 428 | 2444 select_filedesc (infd, console); |
| 2445 } | |
| 2446 | |
| 2447 static void | |
| 2448 emacs_Xt_unselect_console (struct console *con) | |
| 2449 { | |
| 2450 int infd; | |
| 2451 | |
| 2452 if (CONSOLE_X_P (con)) | |
| 2453 return; /* X consoles are automatically selected for when we | |
| 2454 initialize them in Xt */ | |
| 2455 infd = event_stream_unixoid_unselect_console (con); | |
| 2456 unselect_filedesc (infd); | |
| 2457 } | |
| 2458 | |
| 2459 /* read an event from a tty, if one is available. Returns non-zero | |
| 2460 if an event was available. Note that when this function is | |
| 2461 called, there should always be a tty marked as ready for input. | |
| 2462 However, the input condition might actually be EOF, so there | |
| 2463 may not really be any input available. (In this case, | |
| 2464 read_event_from_tty_or_stream_desc() will arrange for the TTY device | |
| 2465 to be deleted.) */ | |
| 2466 | |
| 2467 static int | |
| 440 | 2468 Xt_tty_to_emacs_event (Lisp_Event *emacs_event) |
| 428 | 2469 { |
| 2470 int i; | |
| 2471 | |
| 2472 assert (tty_events_occurred > 0); | |
| 2473 for (i = 0; i < MAXDESC; i++) | |
| 2474 { | |
| 2475 Lisp_Object console = filedesc_with_input[i]; | |
| 2476 if (CONSOLEP (console)) | |
| 2477 { | |
| 2478 assert (tty_events_occurred > 0); | |
| 2479 tty_events_occurred--; | |
| 2480 filedesc_with_input[i] = Qnil; | |
| 771 | 2481 if (read_event_from_tty_or_stream_desc (emacs_event, |
| 2482 XCONSOLE (console))) | |
| 428 | 2483 return 1; |
| 2484 } | |
| 2485 } | |
| 2486 | |
| 2487 return 0; | |
| 2488 } | |
| 2489 | |
| 2490 | |
| 2491 /************************************************************************/ | |
| 2492 /* debugging functions to decipher an event */ | |
| 2493 /************************************************************************/ | |
| 2494 | |
| 2495 #ifdef DEBUG_XEMACS | |
| 2496 #include "xintrinsicp.h" /* only describe_event() needs this */ | |
| 2497 #include <X11/Xproto.h> /* only describe_event() needs this */ | |
| 2498 | |
| 2499 static void | |
| 788 | 2500 describe_event_window (Window window, Display *display, Lisp_Object pstream) |
| 428 | 2501 { |
| 2502 struct frame *f; | |
| 2503 Widget w; | |
| 788 | 2504 write_fmt_string (pstream, " window: 0x%lx", (unsigned long) window); |
| 428 | 2505 w = XtWindowToWidget (display, window); |
| 2506 if (w) | |
| 788 | 2507 write_fmt_string (pstream, " %s", |
| 2508 w->core.widget_class->core_class.class_name); | |
| 428 | 2509 f = x_any_window_to_frame (get_device_from_display (display), window); |
| 2510 if (f) | |
| 788 | 2511 write_fmt_string_lisp (pstream, " \"%s\"", 1, f->name); |
| 2512 write_fmt_string (pstream, "\n"); | |
| 428 | 2513 } |
| 2514 | |
| 442 | 2515 static const char * |
| 428 | 2516 XEvent_mode_to_string (int mode) |
| 2517 { | |
| 2518 switch (mode) | |
| 2519 { | |
| 2520 case NotifyNormal: return "Normal"; | |
| 2521 case NotifyGrab: return "Grab"; | |
| 2522 case NotifyUngrab: return "Ungrab"; | |
| 2523 case NotifyWhileGrabbed: return "WhileGrabbed"; | |
| 2524 default: return "???"; | |
| 2525 } | |
| 2526 } | |
| 2527 | |
| 442 | 2528 static const char * |
| 428 | 2529 XEvent_detail_to_string (int detail) |
| 2530 { | |
| 2531 switch (detail) | |
| 2532 { | |
| 2533 case NotifyAncestor: return "Ancestor"; | |
| 2534 case NotifyInferior: return "Inferior"; | |
| 2535 case NotifyNonlinear: return "Nonlinear"; | |
| 2536 case NotifyNonlinearVirtual: return "NonlinearVirtual"; | |
| 2537 case NotifyPointer: return "Pointer"; | |
| 2538 case NotifyPointerRoot: return "PointerRoot"; | |
| 2539 case NotifyDetailNone: return "DetailNone"; | |
| 2540 default: return "???"; | |
| 2541 } | |
| 2542 } | |
| 2543 | |
| 442 | 2544 static const char * |
| 428 | 2545 XEvent_visibility_to_string (int state) |
| 2546 { | |
| 2547 switch (state) | |
| 2548 { | |
| 2549 case VisibilityFullyObscured: return "FullyObscured"; | |
| 2550 case VisibilityPartiallyObscured: return "PartiallyObscured"; | |
| 2551 case VisibilityUnobscured: return "Unobscured"; | |
| 2552 default: return "???"; | |
| 2553 } | |
| 2554 } | |
| 2555 | |
| 2556 static void | |
| 788 | 2557 describe_event (XEvent *event, Lisp_Object pstream) |
| 428 | 2558 { |
| 2559 char buf[100]; | |
| 2560 struct device *d = get_device_from_display (event->xany.display); | |
| 2561 | |
| 2562 sprintf (buf, "%s%s", x_event_name (event->type), | |
| 2563 event->xany.send_event ? " (send)" : ""); | |
| 788 | 2564 write_fmt_string (pstream, "%-30s", buf); |
| 428 | 2565 switch (event->type) |
| 2566 { | |
| 2567 case FocusIn: | |
| 2568 case FocusOut: | |
| 2569 { | |
| 2570 XFocusChangeEvent *ev = &event->xfocus; | |
| 788 | 2571 describe_event_window (ev->window, ev->display, pstream); |
| 2572 write_fmt_string (pstream, " mode: %s\n", | |
| 2573 XEvent_mode_to_string (ev->mode)); | |
| 2574 write_fmt_string (pstream, " detail: %s\n", | |
| 2575 XEvent_detail_to_string (ev->detail)); | |
| 428 | 2576 break; |
| 2577 } | |
| 2578 | |
| 2579 case KeyPress: | |
| 2580 { | |
| 2581 XKeyEvent *ev = &event->xkey; | |
| 2582 unsigned int state = ev->state; | |
| 2583 | |
| 788 | 2584 describe_event_window (ev->window, ev->display, pstream); |
| 2585 write_fmt_string (pstream, " subwindow: %ld\n", ev->subwindow); | |
| 2586 write_fmt_string (pstream, " state: "); | |
| 428 | 2587 /* Complete list of modifier key masks */ |
| 788 | 2588 if (state & ShiftMask) write_fmt_string (pstream, "Shift "); |
| 2589 if (state & LockMask) write_fmt_string (pstream, "Lock "); | |
| 2590 if (state & ControlMask) write_fmt_string (pstream, "Control "); | |
| 2591 if (state & Mod1Mask) write_fmt_string (pstream, "Mod1 "); | |
| 2592 if (state & Mod2Mask) write_fmt_string (pstream, "Mod2 "); | |
| 2593 if (state & Mod3Mask) write_fmt_string (pstream, "Mod3 "); | |
| 2594 if (state & Mod4Mask) write_fmt_string (pstream, "Mod4 "); | |
| 2595 if (state & Mod5Mask) write_fmt_string (pstream, "Mod5 "); | |
| 428 | 2596 |
| 2597 if (! state) | |
| 788 | 2598 write_fmt_string (pstream, "vanilla\n"); |
| 428 | 2599 else |
| 788 | 2600 write_fmt_string (pstream, "\n"); |
| 428 | 2601 if (x_key_is_modifier_p (ev->keycode, d)) |
| 788 | 2602 write_fmt_string (pstream, " Modifier key"); |
| 2603 write_fmt_string (pstream, " keycode: 0x%x\n", ev->keycode); | |
| 428 | 2604 } |
| 2605 break; | |
| 2606 | |
| 2607 case Expose: | |
| 442 | 2608 if (debug_x_events > 1) |
| 428 | 2609 { |
| 2610 XExposeEvent *ev = &event->xexpose; | |
| 788 | 2611 describe_event_window (ev->window, ev->display, pstream); |
| 2612 write_fmt_string (pstream, | |
| 2613 " region: x=%d y=%d width=%d height=%d\n", | |
| 428 | 2614 ev->x, ev->y, ev->width, ev->height); |
| 788 | 2615 write_fmt_string (pstream, " count: %d\n", ev->count); |
| 428 | 2616 } |
| 2617 else | |
| 788 | 2618 write_fmt_string (pstream, "\n"); |
| 428 | 2619 break; |
| 2620 | |
| 2621 case GraphicsExpose: | |
| 442 | 2622 if (debug_x_events > 1) |
| 428 | 2623 { |
| 2624 XGraphicsExposeEvent *ev = &event->xgraphicsexpose; | |
| 788 | 2625 describe_event_window (ev->drawable, ev->display, pstream); |
| 2626 write_fmt_string (pstream, " major: %s\n", | |
| 428 | 2627 (ev ->major_code == X_CopyArea ? "CopyArea" : |
| 2628 (ev->major_code == X_CopyPlane ? "CopyPlane" : "?"))); | |
| 788 | 2629 write_fmt_string (pstream, |
| 2630 " region: x=%d y=%d width=%d height=%d\n", | |
| 428 | 2631 ev->x, ev->y, ev->width, ev->height); |
| 788 | 2632 write_fmt_string (pstream, " count: %d\n", ev->count); |
| 428 | 2633 } |
| 2634 else | |
| 788 | 2635 write_fmt_string (pstream, "\n"); |
| 428 | 2636 break; |
| 2637 | |
| 2638 case EnterNotify: | |
| 2639 case LeaveNotify: | |
| 442 | 2640 if (debug_x_events > 1) |
| 428 | 2641 { |
| 2642 XCrossingEvent *ev = &event->xcrossing; | |
| 788 | 2643 describe_event_window (ev->window, ev->display, pstream); |
| 428 | 2644 #if 0 |
| 788 | 2645 write_fmt_string (pstream, " subwindow: 0x%x\n", ev->subwindow); |
| 2646 write_fmt_string (pstream, " pos: %d %d\n", ev->x, ev->y); | |
| 2647 write_fmt_string (pstream, " root pos: %d %d\n", ev->x_root, | |
| 2648 ev->y_root); | |
| 428 | 2649 #endif |
| 788 | 2650 write_fmt_string (pstream, " mode: %s\n", |
| 2651 XEvent_mode_to_string(ev->mode)); | |
| 2652 write_fmt_string (pstream, " detail: %s\n", | |
| 2653 XEvent_detail_to_string(ev->detail)); | |
| 2654 write_fmt_string (pstream, " focus: %d\n", ev->focus); | |
| 428 | 2655 #if 0 |
| 788 | 2656 write_fmt_string (pstream, " state: 0x%x\n", ev->state); |
| 428 | 2657 #endif |
| 2658 } | |
| 2659 else | |
| 788 | 2660 write_fmt_string (pstream, "\n"); |
| 428 | 2661 break; |
| 2662 | |
| 2663 case ConfigureNotify: | |
| 442 | 2664 if (debug_x_events > 1) |
| 428 | 2665 { |
| 2666 XConfigureEvent *ev = &event->xconfigure; | |
| 788 | 2667 describe_event_window (ev->window, ev->display, pstream); |
| 2668 write_fmt_string (pstream, " above: 0x%lx\n", ev->above); | |
| 2669 write_fmt_string (pstream, " size: %d %d %d %d\n", ev->x, ev->y, | |
| 428 | 2670 ev->width, ev->height); |
| 788 | 2671 write_fmt_string (pstream, " redirect: %d\n", |
| 2672 ev->override_redirect); | |
| 428 | 2673 } |
| 2674 else | |
| 788 | 2675 write_fmt_string (pstream, "\n"); |
| 428 | 2676 break; |
| 2677 | |
| 2678 case VisibilityNotify: | |
| 442 | 2679 if (debug_x_events > 1) |
| 428 | 2680 { |
| 2681 XVisibilityEvent *ev = &event->xvisibility; | |
| 788 | 2682 describe_event_window (ev->window, ev->display, pstream); |
| 2683 write_fmt_string (pstream, " state: %s\n", | |
| 2684 XEvent_visibility_to_string (ev->state)); | |
| 428 | 2685 } |
| 2686 else | |
| 788 | 2687 write_fmt_string (pstream, "\n"); |
| 428 | 2688 break; |
| 2689 | |
| 2690 case ClientMessage: | |
| 2691 { | |
| 2692 XClientMessageEvent *ev = &event->xclient; | |
| 2693 char *name = XGetAtomName (ev->display, ev->message_type); | |
| 788 | 2694 write_fmt_string (pstream, "%s", name); |
| 2695 if (!strcmp (name, "WM_PROTOCOLS")) | |
| 2696 { | |
| 2697 char *protname = XGetAtomName (ev->display, ev->data.l[0]); | |
| 2698 write_fmt_string (pstream, "(%s)", protname); | |
| 2699 XFree (protname); | |
| 2700 } | |
| 428 | 2701 XFree (name); |
| 788 | 2702 write_fmt_string (pstream, "\n"); |
| 428 | 2703 break; |
| 2704 } | |
| 2705 | |
| 2706 default: | |
| 788 | 2707 write_fmt_string (pstream, "\n"); |
| 428 | 2708 break; |
| 2709 } | |
| 2710 | |
| 2711 fflush (stdout); | |
| 2712 } | |
| 2713 | |
| 2714 #endif /* include describe_event definition */ | |
| 2715 | |
| 2716 | |
| 2717 /************************************************************************/ | |
| 2718 /* get the next event from Xt */ | |
| 2719 /************************************************************************/ | |
| 2720 | |
| 2721 /* This business exists because menu events "happen" when | |
| 2722 menubar_selection_callback() is called from somewhere deep | |
| 2723 within XtAppProcessEvent in emacs_Xt_next_event(). The | |
| 2724 callback needs to terminate the modal loop in that function | |
| 2725 or else it will continue waiting until another event is | |
| 2726 received. | |
| 2727 | |
| 2728 Same business applies to scrollbar events. */ | |
| 2729 | |
| 2730 void | |
| 2731 signal_special_Xt_user_event (Lisp_Object channel, Lisp_Object function, | |
| 2732 Lisp_Object object) | |
| 2733 { | |
| 2734 Lisp_Object event = Fmake_event (Qnil, Qnil); | |
| 2735 | |
| 934 | 2736 XSET_EVENT_TYPE (event, misc_user_event); |
| 2737 XSET_EVENT_CHANNEL (event, channel); | |
| 1204 | 2738 XSET_EVENT_MISC_USER_FUNCTION (event, function); |
| 2739 XSET_EVENT_MISC_USER_OBJECT (event, object); | |
| 2740 enqueue_dispatch_event (event); | |
| 428 | 2741 } |
| 2742 | |
| 2743 static void | |
| 440 | 2744 emacs_Xt_next_event (Lisp_Event *emacs_event) |
| 428 | 2745 { |
| 2746 we_didnt_get_an_event: | |
| 2747 | |
| 2748 while (NILP (dispatch_event_queue) && | |
| 2749 !completed_timeouts && | |
| 2750 !fake_event_occurred && | |
| 2751 !process_events_occurred && | |
| 2752 !tty_events_occurred) | |
| 2753 { | |
| 1268 | 2754 if (in_modal_loop) |
| 2755 { | |
| 2756 /* in_modal_loop gets set when we are in the process of | |
| 2757 dispatching an event (more specifically, when we are inside of | |
| 2758 a menu callback -- if we get here, it means we called a filter | |
| 2759 and the filter did something that tried to fetch an event, | |
| 2760 e.g. sit-for). In such a case, we cannot safely dispatch any | |
| 2761 more events. This is because those dispatching those events | |
| 2762 could cause lwlib to be entered reentranty, specifically if | |
| 2763 they are menu events. lwlib is not designed for this and will | |
| 2764 crash. We used to see this crash constantly as a result of | |
| 2765 QUIT checking, but QUIT will not now function in a modal loop. | |
| 2766 However, we can't just not process any events at all, because | |
| 2767 that will make sit-for etc. hang. So we go ahead and process | |
| 2768 the non-X kinds of events. */ | |
| 1292 | 2769 #ifdef WIN32_ANY |
| 2770 mswindows_is_blocking = 1; | |
| 2771 #endif | |
| 2772 XtAppProcessEvent (Xt_app_con, XtIMTimer | XtIMAlternateInput); | |
| 2773 #ifdef WIN32_ANY | |
| 2774 mswindows_is_blocking = 0; | |
| 2775 #endif | |
| 1268 | 2776 } |
| 428 | 2777 else |
| 2778 { | |
| 1268 | 2779 /* Stupid logic in XtAppProcessEvent() dictates that, if process |
| 2780 events and X events are both available, the process event gets | |
| 2781 taken first. This will cause an infinite loop if we're being | |
| 2782 called from Fdiscard_input(). | |
| 2783 */ | |
| 2784 | |
| 2785 if (XtAppPending (Xt_app_con) & XtIMXEvent) | |
| 2786 XtAppProcessEvent (Xt_app_con, XtIMXEvent); | |
| 2787 else | |
| 428 | 2788 { |
| 1268 | 2789 Lisp_Object devcons, concons; |
| 2790 | |
| 2791 /* We're about to block. Xt has a bug in it (big surprise, | |
| 2792 there) in that it blocks using select() and doesn't | |
| 2793 flush the Xlib output buffers (XNextEvent() does this | |
| 2794 automatically before blocking). So it's necessary | |
| 2795 for us to do this ourselves. If we don't do it, then | |
| 2796 display output may not be seen until the next time | |
| 2797 an X event is received. (This happens esp. with | |
| 2798 subprocess output that gets sent to a visible buffer.) | |
| 2799 | |
| 2800 #### The above comment may not have any validity. */ | |
| 2801 | |
| 2802 DEVICE_LOOP_NO_BREAK (devcons, concons) | |
| 2803 { | |
| 2804 struct device *d; | |
| 2805 d = XDEVICE (XCAR (devcons)); | |
| 2806 | |
| 2807 if (DEVICE_X_P (d) && DEVICE_X_DISPLAY (d)) | |
| 2808 /* emacs may be exiting */ | |
| 2809 XFlush (DEVICE_X_DISPLAY (d)); | |
| 2810 } | |
| 1292 | 2811 #ifdef WIN32_ANY |
| 2812 mswindows_is_blocking = 1; | |
| 2813 #endif | |
| 1268 | 2814 XtAppProcessEvent (Xt_app_con, XtIMAll); |
| 1292 | 2815 #ifdef WIN32_ANY |
| 2816 mswindows_is_blocking = 0; | |
| 2817 #endif | |
| 428 | 2818 } |
| 2819 } | |
| 2820 } | |
| 2821 | |
| 2822 if (!NILP (dispatch_event_queue)) | |
| 2823 { | |
| 2824 Lisp_Object event, event2; | |
| 793 | 2825 event2 = wrap_event (emacs_event); |
| 1204 | 2826 event = dequeue_dispatch_event (); |
| 428 | 2827 Fcopy_event (event, event2); |
| 2828 Fdeallocate_event (event); | |
| 2829 } | |
| 2830 else if (tty_events_occurred) | |
| 2831 { | |
| 2832 if (!Xt_tty_to_emacs_event (emacs_event)) | |
| 2833 goto we_didnt_get_an_event; | |
| 2834 } | |
| 2835 else if (completed_timeouts) | |
| 2836 Xt_timeout_to_emacs_event (emacs_event); | |
| 2837 else if (fake_event_occurred) | |
| 2838 { | |
| 2839 /* A dummy event, so that a cycle of the command loop will occur. */ | |
| 2840 fake_event_occurred = 0; | |
| 2841 /* eval events have nil as channel */ | |
| 934 | 2842 set_event_type (emacs_event, eval_event); |
| 1204 | 2843 SET_EVENT_EVAL_FUNCTION (emacs_event, Qidentity); |
| 2844 SET_EVENT_EVAL_OBJECT (emacs_event, Qnil); | |
| 428 | 2845 } |
| 2846 else /* if (process_events_occurred) */ | |
| 2847 Xt_process_to_emacs_event (emacs_event); | |
| 2848 | |
| 2849 /* No need to call XFilterEvent; Xt does it for us */ | |
| 2850 } | |
| 2851 | |
| 2852 void | |
| 2286 | 2853 emacs_Xt_event_handler (Widget UNUSED (wid), |
| 2854 XtPointer UNUSED (closure), | |
| 428 | 2855 XEvent *event, |
| 2286 | 2856 Boolean *UNUSED (continue_to_dispatch)) |
| 428 | 2857 { |
| 2858 Lisp_Object emacs_event = Fmake_event (Qnil, Qnil); | |
| 2859 | |
| 2860 #ifdef DEBUG_XEMACS | |
| 442 | 2861 if (debug_x_events > 0) |
| 788 | 2862 describe_event (event, Qexternal_debugging_output); |
| 428 | 2863 #endif /* DEBUG_XEMACS */ |
| 2864 if (x_event_to_emacs_event (event, XEVENT (emacs_event))) | |
| 1204 | 2865 enqueue_dispatch_event (emacs_event); |
| 428 | 2866 else |
| 2867 Fdeallocate_event (emacs_event); | |
| 2868 } | |
| 2869 | |
| 2870 | |
| 2871 /************************************************************************/ | |
| 1204 | 2872 /* input pending */ |
| 428 | 2873 /************************************************************************/ |
| 2874 | |
| 2875 static void | |
| 1204 | 2876 emacs_Xt_drain_queue (void) |
| 428 | 2877 { |
| 2878 Lisp_Object devcons, concons; | |
| 1268 | 2879 if (!in_modal_loop) |
| 428 | 2880 { |
| 1268 | 2881 CONSOLE_LOOP (concons) |
| 428 | 2882 { |
| 1268 | 2883 struct console *con = XCONSOLE (XCAR (concons)); |
| 2884 if (!con->input_enabled) | |
| 2885 continue; | |
| 2886 | |
| 2887 CONSOLE_DEVICE_LOOP (devcons, con) | |
| 1204 | 2888 { |
| 1268 | 2889 struct device *d; |
| 2890 Display *display; | |
| 2891 d = XDEVICE (XCAR (devcons)); | |
| 2892 if (DEVICE_X_P (d) && DEVICE_X_DISPLAY (d)) | |
| 2893 { | |
| 2894 display = DEVICE_X_DISPLAY (d); | |
| 2895 while (XEventsQueued (display, QueuedAfterReading)) | |
| 2896 XtAppProcessEvent (Xt_app_con, XtIMXEvent); | |
| 2897 } | |
| 1204 | 2898 } |
| 428 | 2899 } |
| 1268 | 2900 /* |
| 2901 while (XtAppPending (Xt_app_con) & XtIMXEvent) | |
| 2902 XtAppProcessEvent (Xt_app_con, XtIMXEvent); | |
| 2903 */ | |
| 428 | 2904 } |
| 1268 | 2905 |
| 2906 #ifdef HAVE_TTY | |
| 1204 | 2907 drain_tty_devices (); |
| 428 | 2908 #endif |
| 2909 } | |
| 2910 | |
| 1204 | 2911 int |
| 2912 check_if_pending_expose_event (struct device *dev) | |
| 2913 { | |
| 2914 Display *d = DEVICE_X_DISPLAY (dev); | |
| 2915 Lisp_Object event; | |
| 2916 | |
| 2917 emacs_Xt_drain_queue (); | |
| 2918 | |
| 2919 EVENT_CHAIN_LOOP (event, dispatch_event_queue) | |
| 2920 if (XEVENT_TYPE (event) == magic_event) | |
| 2921 { | |
| 2922 XEvent *xev = &XEVENT_MAGIC_X_EVENT (event); | |
| 2923 if (xev->type == Expose && | |
| 2924 xev->xexpose.display == d) | |
| 2925 return 1; | |
| 2926 } | |
| 2927 | |
| 2928 return 0; | |
| 2929 } | |
| 2930 | |
| 442 | 2931 static int |
| 2932 emacs_Xt_current_event_timestamp (struct console *c) | |
| 2933 { | |
| 2934 /* semi-yuck. */ | |
| 2935 Lisp_Object devs = CONSOLE_DEVICE_LIST (c); | |
| 2936 | |
| 2937 if (NILP (devs)) | |
| 2938 return 0; | |
| 2939 else | |
| 2940 { | |
| 2941 struct device *d = XDEVICE (XCAR (devs)); | |
| 2942 return DEVICE_X_LAST_SERVER_TIMESTAMP (d); | |
| 2943 } | |
| 2944 } | |
| 2945 | |
| 428 | 2946 |
| 2947 /************************************************************************/ | |
| 2948 /* replacement for standard string-to-pixel converter */ | |
| 2949 /************************************************************************/ | |
| 2950 | |
| 2951 /* This was constructed by ripping off the standard string-to-pixel | |
| 2952 converter from Converters.c in the Xt source code and modifying | |
| 2953 appropriately. */ | |
| 2954 | |
| 2955 #if 0 | |
| 2956 | |
| 2957 /* This is exported by the Xt library (at least by mine). If this | |
| 2958 isn't the case somewhere, rename this appropriately and remove | |
| 2959 the '#if 0'. Note, however, that I got "unknown structure" | |
| 2960 errors when I tried this. */ | |
| 2961 XtConvertArgRec Const colorConvertArgs[] = { | |
| 440 | 2962 { XtWidgetBaseOffset, (XtPointer)XtOffsetOf(WidgetRec, core.screen), |
| 2963 sizeof (Screen *) }, | |
| 2964 { XtWidgetBaseOffset, (XtPointer)XtOffsetOf(WidgetRec, core.colormap), | |
| 2965 sizeof (Colormap) } | |
| 428 | 2966 }; |
| 2967 | |
| 2968 #endif | |
| 2969 | |
| 2970 #define done(type, value) \ | |
| 2971 if (toVal->addr != NULL) { \ | |
| 2972 if (toVal->size < sizeof(type)) { \ | |
| 2973 toVal->size = sizeof(type); \ | |
| 2974 return False; \ | |
| 2975 } \ | |
| 2976 *(type*)(toVal->addr) = (value); \ | |
| 2977 } else { \ | |
| 2978 static type static_val; \ | |
| 2979 static_val = (value); \ | |
| 2980 toVal->addr = (XPointer)&static_val; \ | |
| 2981 } \ | |
| 2982 toVal->size = sizeof(type); \ | |
| 2983 return True /* Caller supplies `;' */ | |
| 2984 | |
| 2985 /* JH: We use this because I think there's a possibility this | |
| 2986 is called before the device is properly set up, in which case | |
| 2987 I don't want to abort. */ | |
| 2988 extern struct device *get_device_from_display_1 (Display *dpy); | |
| 2989 | |
| 2990 static | |
| 2991 Boolean EmacsXtCvtStringToPixel ( | |
| 2992 Display *dpy, | |
| 2993 XrmValuePtr args, | |
| 2994 Cardinal *num_args, | |
| 2995 XrmValuePtr fromVal, | |
| 2996 XrmValuePtr toVal, | |
| 2997 XtPointer *closure_ret) | |
| 2998 { | |
| 2999 String str = (String)fromVal->addr; | |
| 3000 XColor screenColor; | |
| 3001 XColor exactColor; | |
| 3002 Screen *screen; | |
| 3003 Colormap colormap; | |
| 3004 Visual *visual; | |
| 3005 struct device *d; | |
| 3006 Status status; | |
| 3007 String params[1]; | |
| 3008 Cardinal num_params = 1; | |
| 3009 XtAppContext the_app_con = XtDisplayToApplicationContext (dpy); | |
| 3010 | |
| 3011 if (*num_args != 2) { | |
| 3012 XtAppWarningMsg(the_app_con, "wrongParameters", "cvtStringToPixel", | |
| 3013 "XtToolkitError", | |
| 3014 "String to pixel conversion needs screen and colormap arguments", | |
| 3015 (String *)NULL, (Cardinal *)NULL); | |
| 3016 return False; | |
| 3017 } | |
| 3018 | |
| 3019 screen = *((Screen **) args[0].addr); | |
| 3020 colormap = *((Colormap *) args[1].addr); | |
| 3021 | |
| 3022 /* The original uses the private function CompareISOLatin1(). | |
| 3023 Use XmuCompareISOLatin1() if you want, but I don't think it | |
| 3024 makes any difference here. */ | |
| 3025 if (strcmp(str, XtDefaultBackground) == 0) { | |
| 3026 *closure_ret = False; | |
| 3027 /* This refers to the display's "*reverseVideo" resource. | |
| 3028 These display resources aren't documented anywhere that | |
| 3029 I can find, so I'm going to ignore this. */ | |
| 3030 /* if (pd->rv) done(Pixel, BlackPixelOfScreen(screen)) else */ | |
| 3031 done(Pixel, WhitePixelOfScreen(screen)); | |
| 3032 } | |
| 3033 if (strcmp(str, XtDefaultForeground) == 0) { | |
| 3034 *closure_ret = False; | |
| 3035 /* if (pd->rv) done(Pixel, WhitePixelOfScreen(screen)) else */ | |
| 3036 done(Pixel, BlackPixelOfScreen(screen)); | |
| 3037 } | |
| 3038 | |
| 3039 /* Originally called XAllocNamedColor() here. */ | |
| 3040 if ((d = get_device_from_display_1(dpy))) { | |
| 3041 visual = DEVICE_X_VISUAL(d); | |
| 3042 if (colormap != DEVICE_X_COLORMAP(d)) { | |
| 442 | 3043 XtAppWarningMsg(the_app_con, "weirdColormap", "cvtStringToPixel", |
| 428 | 3044 "XtToolkitWarning", |
| 442 | 3045 "The colormap passed to cvtStringToPixel doesn't match the one registered to the device.\n", |
| 428 | 3046 NULL, 0); |
| 3047 status = XAllocNamedColor(dpy, colormap, (char*)str, &screenColor, &exactColor); | |
| 3048 } else { | |
| 3049 status = XParseColor (dpy, colormap, (char*)str, &screenColor); | |
| 3050 if (status) { | |
| 3094 | 3051 status = x_allocate_nearest_color (dpy, colormap, visual, &screenColor); |
| 428 | 3052 } |
| 3053 } | |
| 3054 } else { | |
| 3055 /* We haven't set up this device totally yet, so just punt */ | |
| 3056 status = XAllocNamedColor(dpy, colormap, (char*)str, &screenColor, &exactColor); | |
| 3057 } | |
| 3058 if (status == 0) { | |
| 3059 params[0] = str; | |
| 3060 /* Server returns a specific error code but Xlib discards it. Ugh */ | |
| 3061 if (XLookupColor(DisplayOfScreen(screen), colormap, (char*) str, | |
| 3062 &exactColor, &screenColor)) { | |
| 3063 XtAppWarningMsg(the_app_con, "noColormap", "cvtStringToPixel", | |
| 3064 "XtToolkitError", | |
| 3065 "Cannot allocate colormap entry for \"%s\"", | |
| 3066 params, &num_params); | |
| 3067 | |
| 3068 } else { | |
| 3069 XtAppWarningMsg(the_app_con, "badValue", "cvtStringToPixel", | |
| 3070 "XtToolkitError", | |
| 3071 "Color name \"%s\" is not defined", params, &num_params); | |
| 3072 } | |
| 3073 | |
| 3074 *closure_ret = False; | |
| 3075 return False; | |
| 3076 } else { | |
| 3077 *closure_ret = (char*)True; | |
| 3078 done(Pixel, screenColor.pixel); | |
| 3079 } | |
| 3080 } | |
| 3081 | |
| 3082 /* ARGSUSED */ | |
| 3083 static void EmacsFreePixel ( | |
| 3084 XtAppContext app, | |
| 3085 XrmValuePtr toVal, | |
| 3086 XtPointer closure, | |
| 3087 XrmValuePtr args, | |
| 3088 Cardinal *num_args) | |
| 3089 { | |
| 3090 if (*num_args != 2) { | |
| 3091 XtAppWarningMsg(app, "wrongParameters","freePixel","XtToolkitError", | |
| 3092 "Freeing a pixel requires screen and colormap arguments", | |
| 3093 (String *)NULL, (Cardinal *)NULL); | |
| 3094 return; | |
| 3095 } | |
| 3096 | |
| 3097 if (closure) { | |
| 3098 Screen *screen = *((Screen **) args[0].addr); | |
| 3099 Colormap colormap = *((Colormap *) args[1].addr); | |
| 3100 XFreeColors(DisplayOfScreen(screen), colormap, | |
| 3101 (unsigned long*)toVal->addr, 1, (unsigned long)0); | |
| 3102 } | |
| 3103 } | |
| 3104 | |
| 3105 | |
| 3106 /************************************************************************/ | |
| 442 | 3107 /* handle focus changes for native widgets */ |
| 3108 /************************************************************************/ | |
| 3109 static void | |
| 3110 emacs_Xt_event_widget_focus_in (Widget w, | |
| 3111 XEvent *event, | |
| 2286 | 3112 String *UNUSED (params), |
| 3113 Cardinal *UNUSED (num_params)) | |
| 442 | 3114 { |
| 853 | 3115 struct frame *f = |
| 442 | 3116 x_any_widget_or_parent_to_frame (get_device_from_display (event->xany.display), w); |
| 3117 | |
| 3118 XtSetKeyboardFocus (FRAME_X_SHELL_WIDGET (f), w); | |
| 3119 } | |
| 3120 | |
| 3121 static void | |
| 2286 | 3122 emacs_Xt_event_widget_focus_out (Widget UNUSED (w), |
| 3123 XEvent *UNUSED (event), | |
| 3124 String *UNUSED (params), | |
| 3125 Cardinal *UNUSED (num_params)) | |
| 442 | 3126 { |
| 3127 } | |
| 3128 | |
| 3129 static XtActionsRec widgetActionsList[] = | |
| 3130 { | |
|
4528
726060ee587c
First draft of g++ 4.3 warning removal patch. Builds. *Needs ChangeLogs.*
Stephen J. Turnbull <stephen@xemacs.org>
parents:
4522
diff
changeset
|
3131 { (String) "widget-focus-in", emacs_Xt_event_widget_focus_in }, |
|
726060ee587c
First draft of g++ 4.3 warning removal patch. Builds. *Needs ChangeLogs.*
Stephen J. Turnbull <stephen@xemacs.org>
parents:
4522
diff
changeset
|
3132 { (String) "widget-focus-out", emacs_Xt_event_widget_focus_out }, |
| 442 | 3133 }; |
| 3134 | |
| 3135 static void | |
| 3136 emacs_Xt_event_add_widget_actions (XtAppContext ctx) | |
| 3137 { | |
| 3138 XtAppAddActions (ctx, widgetActionsList, 2); | |
| 3139 } | |
| 3140 | |
| 3141 | |
| 3142 /************************************************************************/ | |
| 428 | 3143 /* initialization */ |
| 3144 /************************************************************************/ | |
| 3145 | |
| 3146 void | |
| 3147 syms_of_event_Xt (void) | |
| 3148 { | |
| 563 | 3149 DEFSYMBOL (Qsans_modifiers); |
| 3150 DEFSYMBOL (Qself_insert_command); | |
| 428 | 3151 } |
| 3152 | |
| 3153 void | |
| 3154 reinit_vars_of_event_Xt (void) | |
| 3155 { | |
| 1204 | 3156 Xt_event_stream = xnew_and_zero (struct event_stream); |
| 428 | 3157 Xt_event_stream->event_pending_p = emacs_Xt_event_pending_p; |
| 1204 | 3158 Xt_event_stream->force_event_pending_cb= emacs_Xt_force_event_pending; |
| 428 | 3159 Xt_event_stream->next_event_cb = emacs_Xt_next_event; |
| 3160 Xt_event_stream->handle_magic_event_cb = emacs_Xt_handle_magic_event; | |
| 788 | 3161 Xt_event_stream->format_magic_event_cb = emacs_Xt_format_magic_event; |
| 3162 Xt_event_stream->compare_magic_event_cb= emacs_Xt_compare_magic_event; | |
| 3163 Xt_event_stream->hash_magic_event_cb = emacs_Xt_hash_magic_event; | |
| 428 | 3164 Xt_event_stream->add_timeout_cb = emacs_Xt_add_timeout; |
| 3165 Xt_event_stream->remove_timeout_cb = emacs_Xt_remove_timeout; | |
| 3166 Xt_event_stream->select_console_cb = emacs_Xt_select_console; | |
| 3167 Xt_event_stream->unselect_console_cb = emacs_Xt_unselect_console; | |
| 3168 Xt_event_stream->select_process_cb = emacs_Xt_select_process; | |
| 3169 Xt_event_stream->unselect_process_cb = emacs_Xt_unselect_process; | |
| 1204 | 3170 Xt_event_stream->drain_queue_cb = emacs_Xt_drain_queue; |
| 853 | 3171 Xt_event_stream->create_io_streams_cb = emacs_Xt_create_io_streams; |
| 3172 Xt_event_stream->delete_io_streams_cb = emacs_Xt_delete_io_streams; | |
| 442 | 3173 Xt_event_stream->current_event_timestamp_cb = |
| 3174 emacs_Xt_current_event_timestamp; | |
| 428 | 3175 |
| 3176 the_Xt_timeout_blocktype = Blocktype_new (struct Xt_timeout_blocktype); | |
| 3177 | |
| 3178 last_quit_check_signal_tick_count = 0; | |
| 3179 | |
| 3180 /* this function only makes safe calls */ | |
| 3181 init_what_input_once (); | |
| 3182 } | |
| 3183 | |
| 3184 void | |
| 3185 vars_of_event_Xt (void) | |
| 3186 { | |
| 3187 DEFVAR_BOOL ("x-allow-sendevents", &x_allow_sendevents /* | |
| 3188 *Non-nil means to allow synthetic events. Nil means they are ignored. | |
| 3189 Beware: allowing emacs to process SendEvents opens a big security hole. | |
| 3190 */ ); | |
| 3191 x_allow_sendevents = 0; | |
| 3192 | |
| 3193 #ifdef DEBUG_XEMACS | |
| 442 | 3194 DEFVAR_INT ("debug-x-events", &debug_x_events /* |
| 428 | 3195 If non-zero, display debug information about X events that XEmacs sees. |
| 3196 Information is displayed on stderr. Currently defined values are: | |
| 3197 | |
| 3198 1 == non-verbose output | |
| 3199 2 == verbose output | |
| 3200 */ ); | |
| 442 | 3201 debug_x_events = 0; |
| 428 | 3202 #endif |
| 3171 | 3203 DEFVAR_LISP ("x-us-keymap-description", &Vx_us_keymap_description /* |
| 3204 X11-specific vector describing the current keyboard hardware, and how to map | |
| 3205 from its keycodes to those alphanumeric and punctuation characters that | |
| 3206 would be produced by it if a US layout were configured in software. | |
| 3207 | |
| 3208 We use this to make possible the usage of standard key bindings on keyboards | |
| 3209 where the keys that those bindings assume are not available; for example, on | |
| 3210 a Russian keyboard, one can type C-Cyrillic_che C-Cyrillic_a and have XEmacs | |
| 3211 use the binding for C-x C-f, rather than give an error message that | |
| 3212 C-Cyrillic_che C-Cyrillic_a is not bound. | |
| 3213 | |
| 3214 Entries are either nil, which means the corresponding key code does not map | |
| 3215 to a non-function key in the US layout, a single character, meaning it maps to | |
| 3216 that character, or a vector of two characters, the first indicating the | |
| 3217 unshifted mapping, the second the shifted mapping for the US layout. | |
| 3218 | |
| 3219 `x-us-keymap-first-keycode' tells XEmacs the keycode of the first entry in | |
| 3220 this vector. | |
| 3221 */ ); | |
| 3222 Vx_us_keymap_description = Qnil; | |
| 3223 | |
| 3224 DEFVAR_INT ("x-us-keymap-first-keycode", &Vx_us_keymap_first_keycode /* | |
| 3225 The X11 keycode that the first entry in `x-us-keymap-description' | |
| 3226 corresponds to. See the documentation for that variable. | |
| 3227 | |
| 3228 The X11 documentation for XDisplayKeycodes says this can never be less than | |
| 3229 8, but XEmacs doesn't enforce any limitation on what you set it to. | |
| 3230 */ ); | |
| 3231 Vx_us_keymap_first_keycode = 0; | |
| 428 | 3232 } |
| 3233 | |
| 3234 /* This mess is a hack that patches the shell widget to treat visual inheritance | |
| 3235 the same as colormap and depth inheritance */ | |
| 3236 | |
| 3237 static XtInitProc orig_shell_init_proc; | |
| 3238 | |
| 2956 | 3239 static void ShellVisualPatch(Widget wanted, Widget new_, |
| 428 | 3240 ArgList args, Cardinal *num_args) |
| 3241 { | |
| 3242 Widget p; | |
| 2956 | 3243 ShellWidget w = (ShellWidget) new_; |
| 428 | 3244 |
| 3245 /* first, call the original setup */ | |
| 2956 | 3246 (*orig_shell_init_proc)(wanted, new_, args, num_args); |
| 428 | 3247 |
| 3248 /* if the visual isn't explicitly set, grab it from the nearest shell ancestor */ | |
| 3249 if (w->shell.visual == CopyFromParent) { | |
| 3250 p = XtParent(w); | |
| 3251 while (p && !XtIsShell(p)) p = XtParent(p); | |
| 3252 if (p) w->shell.visual = ((ShellWidget)p)->shell.visual; | |
| 3253 } | |
| 3254 } | |
| 3255 | |
| 3256 void | |
| 3257 init_event_Xt_late (void) /* called when already initialized */ | |
| 3258 { | |
| 3259 timeout_id_tick = 1; | |
| 3260 pending_timeouts = 0; | |
| 3261 completed_timeouts = 0; | |
| 3262 | |
| 3263 event_stream = Xt_event_stream; | |
| 3264 | |
| 3265 XtToolkitInitialize (); | |
| 3266 Xt_app_con = XtCreateApplicationContext (); | |
| 3267 XtAppSetFallbackResources (Xt_app_con, (String *) x_fallback_resources); | |
| 3268 | |
| 442 | 3269 /* In select-x.c */ |
| 428 | 3270 x_selection_timeout = (XtAppGetSelectionTimeout (Xt_app_con) / 1000); |
| 3271 XSetErrorHandler (x_error_handler); | |
| 3272 XSetIOErrorHandler (x_IO_error_handler); | |
| 3273 | |
| 442 | 3274 #ifndef WIN32_NATIVE |
| 428 | 3275 XtAppAddInput (Xt_app_con, signal_event_pipe[0], |
| 3276 (XtPointer) (XtInputReadMask /* | XtInputExceptMask */), | |
| 3277 Xt_what_callback, 0); | |
| 3278 #endif | |
| 3279 | |
| 3280 XtAppSetTypeConverter (Xt_app_con, XtRString, XtRPixel, | |
| 3281 EmacsXtCvtStringToPixel, | |
| 3282 (XtConvertArgList) colorConvertArgs, | |
| 3283 2, XtCacheByDisplay, EmacsFreePixel); | |
| 3284 | |
| 3285 #ifdef XIM_XLIB | |
| 3286 XtAppSetTypeConverter (Xt_app_con, XtRString, XtRXimStyles, | |
| 3287 EmacsXtCvtStringToXIMStyles, | |
| 3288 NULL, 0, | |
| 3289 XtCacheByDisplay, EmacsFreeXIMStyles); | |
| 3290 #endif /* XIM_XLIB */ | |
| 442 | 3291 /* Add extra actions to native widgets to handle focus and friends. */ |
| 3292 emacs_Xt_event_add_widget_actions (Xt_app_con); | |
| 428 | 3293 |
| 3294 /* insert the visual inheritance patch/hack described above */ | |
| 3295 orig_shell_init_proc = shellClassRec.core_class.initialize; | |
| 3296 shellClassRec.core_class.initialize = ShellVisualPatch; | |
| 3297 | |
| 3298 } |