Mercurial > hg > xemacs-beta
annotate src/events.c @ 4985:358aa3bb603f
Automatic merge
| author | Ben Wing <ben@xemacs.org> |
|---|---|
| date | Fri, 05 Feb 2010 12:12:28 -0600 |
| parents | e813cf16c015 |
| children | d4f666cda5e6 6f2158fa75ed b5df3737028a |
| rev | line source |
|---|---|
| 428 | 1 /* Events: printing them, converting them to and from characters. |
| 2 Copyright (C) 1991, 1992, 1993, 1994 Free Software Foundation, Inc. | |
| 3 Copyright (C) 1994, 1995 Board of Trustees, University of Illinois. | |
| 3063 | 4 Copyright (C) 2001, 2002, 2005 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 /* This file has been Mule-ized. */ | |
| 26 | |
| 27 #include <config.h> | |
| 28 #include "lisp.h" | |
| 29 #include "buffer.h" | |
| 30 #include "console.h" | |
| 31 #include "device.h" | |
| 788 | 32 #include "extents.h" |
| 428 | 33 #include "events.h" |
| 872 | 34 #include "frame-impl.h" |
| 428 | 35 #include "glyphs.h" |
| 36 #include "keymap.h" /* for key_desc_list_to_event() */ | |
| 788 | 37 #include "lstream.h" |
| 428 | 38 #include "redisplay.h" |
| 800 | 39 #include "toolbar.h" |
| 428 | 40 #include "window.h" |
| 41 | |
| 872 | 42 #include "console-tty-impl.h" /* for stuff in character_to_event */ |
| 800 | 43 |
| 2340 | 44 #ifdef HAVE_TTY |
| 45 #define USED_IF_TTY(decl) decl | |
| 46 #else | |
| 47 #define USED_IF_TTY(decl) UNUSED (decl) | |
| 48 #endif | |
| 49 | |
| 50 #ifdef HAVE_TOOLBARS | |
| 51 #define USED_IF_TOOLBARS(decl) decl | |
| 52 #else | |
| 53 #define USED_IF_TOOLBARS(decl) UNUSED (decl) | |
| 54 #endif | |
| 55 | |
| 428 | 56 /* Where old events go when they are explicitly deallocated. |
| 57 The event chain here is cut loose before GC, so these will be freed | |
| 58 eventually. | |
| 59 */ | |
| 60 static Lisp_Object Vevent_resource; | |
| 61 | |
| 62 Lisp_Object Qeventp; | |
| 63 Lisp_Object Qevent_live_p; | |
| 64 Lisp_Object Qkey_press_event_p; | |
| 65 Lisp_Object Qbutton_event_p; | |
| 66 Lisp_Object Qmouse_event_p; | |
| 67 Lisp_Object Qprocess_event_p; | |
| 68 | |
| 69 Lisp_Object Qkey_press, Qbutton_press, Qbutton_release, Qmisc_user; | |
| 2828 | 70 Lisp_Object Qcharacter_of_keysym, Qascii_character; |
| 428 | 71 |
| 771 | 72 |
| 73 /************************************************************************/ | |
| 74 /* definition of event object */ | |
| 75 /************************************************************************/ | |
| 428 | 76 |
| 77 /* #### Ad-hoc hack. Should be part of define_lrecord_implementation */ | |
| 78 void | |
| 79 clear_event_resource (void) | |
| 80 { | |
| 81 Vevent_resource = Qnil; | |
| 82 } | |
| 83 | |
| 934 | 84 /* Make sure we lose quickly if we try to use this event */ |
| 85 static void | |
| 86 deinitialize_event (Lisp_Object ev) | |
| 87 { | |
| 88 Lisp_Event *event = XEVENT (ev); | |
| 3063 | 89 int i; |
| 90 /* Preserve the old UID for this event, for tracking it */ | |
| 91 unsigned int old_uid = event->lheader.uid; | |
| 934 | 92 |
| 1204 | 93 for (i = 0; i < (int) (sizeof (Lisp_Event) / sizeof (int)); i++) |
| 94 ((int *) event) [i] = 0xdeadbeef; /* -559038737 base 10 */ | |
| 95 set_lheader_implementation (&event->lheader, &lrecord_event); | |
| 3063 | 96 event->lheader.uid = old_uid; |
| 934 | 97 set_event_type (event, dead_event); |
| 98 SET_EVENT_CHANNEL (event, Qnil); | |
| 428 | 99 XSET_EVENT_NEXT (ev, Qnil); |
| 100 } | |
| 101 | |
| 102 /* Set everything to zero or nil so that it's predictable. */ | |
| 103 void | |
| 440 | 104 zero_event (Lisp_Event *e) |
| 428 | 105 { |
| 3063 | 106 /* Preserve the old UID for this event, for tracking it */ |
| 107 unsigned int old_uid = e->lheader.uid; | |
| 108 | |
| 428 | 109 xzero (*e); |
| 442 | 110 set_lheader_implementation (&e->lheader, &lrecord_event); |
| 3063 | 111 e->lheader.uid = old_uid; |
| 1204 | 112 set_event_type (e, empty_event); |
| 113 SET_EVENT_CHANNEL (e, Qnil); | |
| 114 SET_EVENT_NEXT (e, Qnil); | |
| 428 | 115 } |
| 116 | |
| 1204 | 117 static const struct memory_description key_data_description_1 [] = { |
| 118 { XD_LISP_OBJECT, offsetof (struct Lisp_Key_Data, keysym) }, | |
| 119 { XD_END } | |
| 120 }; | |
| 121 | |
| 122 static const struct sized_memory_description key_data_description = { | |
| 123 sizeof (Lisp_Key_Data), key_data_description_1 | |
| 124 }; | |
| 125 | |
| 126 static const struct memory_description button_data_description_1 [] = { | |
| 127 { XD_END } | |
| 128 }; | |
| 129 | |
| 130 static const struct sized_memory_description button_data_description = { | |
| 131 sizeof (Lisp_Button_Data), button_data_description_1 | |
| 132 }; | |
| 133 | |
| 134 static const struct memory_description motion_data_description_1 [] = { | |
| 135 { XD_END } | |
| 136 }; | |
| 137 | |
| 138 static const struct sized_memory_description motion_data_description = { | |
| 139 sizeof (Lisp_Motion_Data), motion_data_description_1 | |
| 140 }; | |
| 141 | |
| 142 static const struct memory_description process_data_description_1 [] = { | |
| 143 { XD_LISP_OBJECT, offsetof (struct Lisp_Process_Data, process) }, | |
| 144 { XD_END } | |
| 145 }; | |
| 146 | |
| 147 static const struct sized_memory_description process_data_description = { | |
| 148 sizeof (Lisp_Process_Data), process_data_description_1 | |
| 149 }; | |
| 150 | |
| 151 static const struct memory_description timeout_data_description_1 [] = { | |
| 152 { XD_LISP_OBJECT, offsetof (struct Lisp_Timeout_Data, function) }, | |
| 153 { XD_LISP_OBJECT, offsetof (struct Lisp_Timeout_Data, object) }, | |
| 154 { XD_END } | |
| 155 }; | |
| 156 | |
| 157 static const struct sized_memory_description timeout_data_description = { | |
| 158 sizeof (Lisp_Timeout_Data), timeout_data_description_1 | |
| 159 }; | |
| 160 | |
| 161 static const struct memory_description eval_data_description_1 [] = { | |
| 162 { XD_LISP_OBJECT, offsetof (struct Lisp_Eval_Data, function) }, | |
| 163 { XD_LISP_OBJECT, offsetof (struct Lisp_Eval_Data, object) }, | |
| 164 { XD_END } | |
| 165 }; | |
| 166 | |
| 167 static const struct sized_memory_description eval_data_description = { | |
| 168 sizeof (Lisp_Eval_Data), eval_data_description_1 | |
| 169 }; | |
| 170 | |
| 171 static const struct memory_description misc_user_data_description_1 [] = { | |
| 172 { XD_LISP_OBJECT, offsetof (struct Lisp_Misc_User_Data, function) }, | |
| 173 { XD_LISP_OBJECT, offsetof (struct Lisp_Misc_User_Data, object) }, | |
| 174 { XD_END } | |
| 175 }; | |
| 176 | |
| 177 static const struct sized_memory_description misc_user_data_description = { | |
| 178 sizeof (Lisp_Misc_User_Data), misc_user_data_description_1 | |
| 179 }; | |
| 180 | |
| 181 static const struct memory_description magic_eval_data_description_1 [] = { | |
| 182 { XD_LISP_OBJECT, offsetof (struct Lisp_Magic_Eval_Data, object) }, | |
| 183 { XD_END } | |
| 184 }; | |
| 185 | |
| 186 static const struct sized_memory_description magic_eval_data_description = { | |
| 187 sizeof (Lisp_Magic_Eval_Data), magic_eval_data_description_1 | |
| 188 }; | |
| 189 | |
| 190 static const struct memory_description magic_data_description_1 [] = { | |
| 191 { XD_END } | |
| 192 }; | |
| 193 | |
| 194 static const struct sized_memory_description magic_data_description = { | |
| 195 sizeof (Lisp_Magic_Data), magic_data_description_1 | |
| 196 }; | |
| 197 | |
| 198 static const struct memory_description event_data_description_1 [] = { | |
| 2551 | 199 { XD_BLOCK_ARRAY, key_press_event, 1, { &key_data_description } }, |
| 200 { XD_BLOCK_ARRAY, button_press_event, 1, { &button_data_description } }, | |
| 201 { XD_BLOCK_ARRAY, button_release_event, 1, { &button_data_description } }, | |
| 202 { XD_BLOCK_ARRAY, pointer_motion_event, 1, { &motion_data_description } }, | |
| 203 { XD_BLOCK_ARRAY, process_event, 1, { &process_data_description } }, | |
| 204 { XD_BLOCK_ARRAY, timeout_event, 1, { &timeout_data_description } }, | |
| 205 { XD_BLOCK_ARRAY, magic_event, 1, { &magic_data_description } }, | |
| 206 { XD_BLOCK_ARRAY, magic_eval_event, 1, { &magic_eval_data_description } }, | |
| 207 { XD_BLOCK_ARRAY, eval_event, 1, { &eval_data_description } }, | |
| 208 { XD_BLOCK_ARRAY, misc_user_event, 1, { &misc_user_data_description } }, | |
| 1204 | 209 { XD_END } |
| 210 }; | |
| 211 | |
| 212 static const struct sized_memory_description event_data_description = { | |
| 213 0, event_data_description_1 | |
| 214 }; | |
| 215 | |
| 216 static const struct memory_description event_description [] = { | |
| 217 { XD_INT, offsetof (struct Lisp_Event, event_type) }, | |
| 218 { XD_LISP_OBJECT, offsetof (struct Lisp_Event, next) }, | |
| 219 { XD_LISP_OBJECT, offsetof (struct Lisp_Event, channel) }, | |
| 220 { XD_UNION, offsetof (struct Lisp_Event, event), | |
| 2551 | 221 XD_INDIRECT (0, 0), { &event_data_description } }, |
| 1204 | 222 { XD_END } |
| 223 }; | |
| 224 | |
| 225 #ifdef EVENT_DATA_AS_OBJECTS | |
| 226 | |
| 227 DEFINE_BASIC_LRECORD_IMPLEMENTATION ("key-data", key_data, | |
| 228 0, /*dumpable-flag*/ | |
| 229 0, 0, 0, 0, 0, | |
| 230 key_data_description, | |
| 231 Lisp_Key_Data); | |
| 232 | |
| 233 DEFINE_BASIC_LRECORD_IMPLEMENTATION ("button-data", button_data, | |
| 234 0, /*dumpable-flag*/ | |
| 235 0, 0, 0, 0, 0, | |
| 236 button_data_description, | |
| 237 Lisp_Button_Data); | |
| 238 | |
| 239 DEFINE_BASIC_LRECORD_IMPLEMENTATION ("motion-data", motion_data, | |
| 240 0, /*dumpable-flag*/ | |
| 241 0, 0, 0, 0, 0, | |
| 242 motion_data_description, | |
| 243 Lisp_Motion_Data); | |
| 244 | |
| 245 DEFINE_BASIC_LRECORD_IMPLEMENTATION ("process-data", process_data, | |
| 246 0, /*dumpable-flag*/ | |
| 247 0, 0, 0, 0, 0, | |
| 248 process_data_description, | |
| 249 Lisp_Process_Data); | |
| 250 | |
| 251 DEFINE_BASIC_LRECORD_IMPLEMENTATION ("timeout-data", timeout_data, | |
| 252 0, /*dumpable-flag*/ | |
| 253 0, 0, 0, 0, 0, | |
| 254 timeout_data_description, | |
| 255 Lisp_Timeout_Data); | |
| 256 | |
| 257 DEFINE_BASIC_LRECORD_IMPLEMENTATION ("eval-data", eval_data, | |
| 258 0, /*dumpable-flag*/ | |
| 259 0, 0, 0, 0, 0, | |
| 260 eval_data_description, | |
| 261 Lisp_Eval_Data); | |
| 262 | |
| 263 DEFINE_BASIC_LRECORD_IMPLEMENTATION ("misc-user-data", misc_user_data, | |
| 264 0, /*dumpable-flag*/ | |
| 265 0, 0, 0, 0, 0, | |
| 266 misc_user_data_description, | |
| 267 Lisp_Misc_User_Data); | |
| 268 | |
| 269 DEFINE_BASIC_LRECORD_IMPLEMENTATION ("magic-eval-data", magic_eval_data, | |
| 270 0, /*dumpable-flag*/ | |
| 271 0, 0, 0, 0, 0, | |
| 272 magic_eval_data_description, | |
| 273 Lisp_Magic_Eval_Data); | |
| 274 | |
| 275 DEFINE_BASIC_LRECORD_IMPLEMENTATION ("magic-data", magic_data, | |
| 276 0, /*dumpable-flag*/ | |
| 277 0, 0, 0, 0, 0, | |
| 278 magic_data_description, | |
| 279 Lisp_Magic_Data); | |
| 280 | |
| 281 #endif /* EVENT_DATA_AS_OBJECTS */ | |
| 282 | |
| 428 | 283 static Lisp_Object |
| 284 mark_event (Lisp_Object obj) | |
| 285 { | |
| 440 | 286 Lisp_Event *event = XEVENT (obj); |
| 428 | 287 |
| 288 switch (event->event_type) | |
| 289 { | |
| 290 case key_press_event: | |
| 1204 | 291 mark_object (EVENT_KEY_KEYSYM (event)); |
| 428 | 292 break; |
| 293 case process_event: | |
| 1204 | 294 mark_object (EVENT_PROCESS_PROCESS (event)); |
| 428 | 295 break; |
| 296 case timeout_event: | |
| 1204 | 297 mark_object (EVENT_TIMEOUT_FUNCTION (event)); |
| 298 mark_object (EVENT_TIMEOUT_OBJECT (event)); | |
| 428 | 299 break; |
| 300 case eval_event: | |
| 301 case misc_user_event: | |
| 1204 | 302 mark_object (EVENT_EVAL_FUNCTION (event)); |
| 303 mark_object (EVENT_EVAL_OBJECT (event)); | |
| 428 | 304 break; |
| 305 case magic_eval_event: | |
| 1204 | 306 mark_object (EVENT_MAGIC_EVAL_OBJECT (event)); |
| 428 | 307 break; |
| 308 case button_press_event: | |
| 309 case button_release_event: | |
| 310 case pointer_motion_event: | |
| 311 case magic_event: | |
| 312 case empty_event: | |
| 313 case dead_event: | |
| 314 break; | |
| 315 default: | |
| 2500 | 316 ABORT (); |
| 428 | 317 } |
| 318 mark_object (event->channel); | |
| 319 return event->next; | |
| 320 } | |
| 321 | |
| 322 static void | |
|
4952
19a72041c5ed
Mule-izing, various fixes related to char * arguments
Ben Wing <ben@xemacs.org>
parents:
4780
diff
changeset
|
323 print_event_1 (const Ascbyte *str, Lisp_Object obj, Lisp_Object printcharfun) |
| 428 | 324 { |
| 793 | 325 DECLARE_EISTRING_MALLOC (ei); |
|
4952
19a72041c5ed
Mule-izing, various fixes related to char * arguments
Ben Wing <ben@xemacs.org>
parents:
4780
diff
changeset
|
326 write_ascstring (printcharfun, str); |
| 1204 | 327 format_event_object (ei, obj, 0); |
| 826 | 328 write_eistring (printcharfun, ei); |
| 793 | 329 eifree (ei); |
| 428 | 330 } |
| 331 | |
| 332 static void | |
| 2286 | 333 print_event (Lisp_Object obj, Lisp_Object printcharfun, |
| 334 int UNUSED (escapeflag)) | |
| 428 | 335 { |
| 336 if (print_readably) | |
| 563 | 337 printing_unreadable_object ("#<event>"); |
| 428 | 338 |
| 339 switch (XEVENT (obj)->event_type) | |
| 340 { | |
| 341 case key_press_event: | |
| 342 print_event_1 ("#<keypress-event ", obj, printcharfun); | |
| 343 break; | |
| 344 case button_press_event: | |
| 345 print_event_1 ("#<buttondown-event ", obj, printcharfun); | |
| 346 break; | |
| 347 case button_release_event: | |
| 348 print_event_1 ("#<buttonup-event ", obj, printcharfun); | |
| 349 break; | |
| 350 case magic_event: | |
| 351 case magic_eval_event: | |
| 352 print_event_1 ("#<magic-event ", obj, printcharfun); | |
| 353 break; | |
| 354 case pointer_motion_event: | |
| 355 { | |
| 356 Lisp_Object Vx, Vy; | |
| 357 Vx = Fevent_x_pixel (obj); | |
| 358 assert (INTP (Vx)); | |
| 359 Vy = Fevent_y_pixel (obj); | |
| 360 assert (INTP (Vy)); | |
| 793 | 361 write_fmt_string (printcharfun, "#<motion-event %ld, %ld", |
| 362 (long) XINT (Vx), (long) XINT (Vy)); | |
| 428 | 363 break; |
| 364 } | |
| 365 case process_event: | |
| 1204 | 366 write_fmt_string_lisp (printcharfun, "#<process-event %S", 1, |
| 367 XEVENT_PROCESS_PROCESS (obj)); | |
| 428 | 368 break; |
| 369 case timeout_event: | |
| 1204 | 370 write_fmt_string_lisp (printcharfun, "#<timeout-event %S", 1, |
| 371 XEVENT_TIMEOUT_OBJECT (obj)); | |
| 428 | 372 break; |
| 373 case empty_event: | |
|
4952
19a72041c5ed
Mule-izing, various fixes related to char * arguments
Ben Wing <ben@xemacs.org>
parents:
4780
diff
changeset
|
374 write_ascstring (printcharfun, "#<empty-event"); |
| 428 | 375 break; |
| 376 case misc_user_event: | |
| 1204 | 377 write_fmt_string_lisp (printcharfun, "#<misc-user-event (%S", 1, |
| 378 XEVENT_MISC_USER_FUNCTION (obj)); | |
| 379 write_fmt_string_lisp (printcharfun, " %S)", 1, | |
| 380 XEVENT_MISC_USER_OBJECT (obj)); | |
| 428 | 381 break; |
| 382 case eval_event: | |
| 1204 | 383 write_fmt_string_lisp (printcharfun, "#<eval-event (%S", 1, |
| 384 XEVENT_EVAL_FUNCTION (obj)); | |
| 385 write_fmt_string_lisp (printcharfun, " %S)", 1, | |
| 386 XEVENT_EVAL_OBJECT (obj)); | |
| 428 | 387 break; |
| 388 case dead_event: | |
|
4952
19a72041c5ed
Mule-izing, various fixes related to char * arguments
Ben Wing <ben@xemacs.org>
parents:
4780
diff
changeset
|
389 write_ascstring (printcharfun, "#<DEALLOCATED-EVENT"); |
| 428 | 390 break; |
| 391 default: | |
|
4952
19a72041c5ed
Mule-izing, various fixes related to char * arguments
Ben Wing <ben@xemacs.org>
parents:
4780
diff
changeset
|
392 write_ascstring (printcharfun, "#<UNKNOWN-EVENT-TYPE"); |
| 428 | 393 break; |
| 394 } | |
|
4952
19a72041c5ed
Mule-izing, various fixes related to char * arguments
Ben Wing <ben@xemacs.org>
parents:
4780
diff
changeset
|
395 write_ascstring (printcharfun, ">"); |
| 428 | 396 } |
| 397 | |
| 398 static int | |
|
4906
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4780
diff
changeset
|
399 event_equal (Lisp_Object obj1, Lisp_Object obj2, int UNUSED (depth), |
|
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4780
diff
changeset
|
400 int UNUSED (foldcase)) |
| 428 | 401 { |
| 440 | 402 Lisp_Event *e1 = XEVENT (obj1); |
| 403 Lisp_Event *e2 = XEVENT (obj2); | |
| 428 | 404 |
| 405 if (e1->event_type != e2->event_type) return 0; | |
| 406 if (!EQ (e1->channel, e2->channel)) return 0; | |
| 407 /* if (e1->timestamp != e2->timestamp) return 0; */ | |
| 408 switch (e1->event_type) | |
| 409 { | |
| 2500 | 410 default: ABORT (); |
| 428 | 411 |
| 412 case process_event: | |
| 1204 | 413 return EQ (EVENT_PROCESS_PROCESS (e1), EVENT_PROCESS_PROCESS (e2)); |
| 428 | 414 |
| 415 case timeout_event: | |
| 1204 | 416 return (internal_equal (EVENT_TIMEOUT_FUNCTION (e1), |
| 417 EVENT_TIMEOUT_FUNCTION (e2), 0) && | |
| 418 internal_equal (EVENT_TIMEOUT_OBJECT (e1), | |
| 419 EVENT_TIMEOUT_OBJECT (e2), 0)); | |
| 428 | 420 |
| 421 case key_press_event: | |
| 1204 | 422 return (EQ (EVENT_KEY_KEYSYM (e1), EVENT_KEY_KEYSYM (e2)) && |
| 423 (EVENT_KEY_MODIFIERS (e1) == EVENT_KEY_MODIFIERS (e2))); | |
| 428 | 424 |
| 425 case button_press_event: | |
| 426 case button_release_event: | |
| 1204 | 427 return (EVENT_BUTTON_BUTTON (e1) == EVENT_BUTTON_BUTTON (e2) && |
| 428 EVENT_BUTTON_MODIFIERS (e1) == EVENT_BUTTON_MODIFIERS (e2)); | |
| 428 | 429 |
| 430 case pointer_motion_event: | |
| 1204 | 431 return (EVENT_MOTION_X (e1) == EVENT_MOTION_X (e2) && |
| 432 EVENT_MOTION_Y (e1) == EVENT_MOTION_Y (e2)); | |
| 428 | 433 |
| 434 case misc_user_event: | |
| 1204 | 435 return (internal_equal (EVENT_EVAL_FUNCTION (e1), |
| 436 EVENT_EVAL_FUNCTION (e2), 0) && | |
| 437 internal_equal (EVENT_EVAL_OBJECT (e1), | |
| 438 EVENT_EVAL_OBJECT (e2), 0) && | |
| 439 /* #### is this really needed for equality | |
| 428 | 440 or is x and y also important? */ |
| 1204 | 441 EVENT_MISC_USER_BUTTON (e1) == EVENT_MISC_USER_BUTTON (e2) && |
| 442 EVENT_MISC_USER_MODIFIERS (e1) == EVENT_MISC_USER_MODIFIERS (e2)); | |
| 428 | 443 |
| 444 case eval_event: | |
| 1204 | 445 return (internal_equal (EVENT_EVAL_FUNCTION (e1), |
| 446 EVENT_EVAL_FUNCTION (e2), 0) && | |
| 447 internal_equal (EVENT_EVAL_OBJECT (e1), | |
| 448 EVENT_EVAL_OBJECT (e2), 0)); | |
| 428 | 449 |
| 450 case magic_eval_event: | |
| 1204 | 451 return (EVENT_MAGIC_EVAL_INTERNAL_FUNCTION (e1) == |
| 452 EVENT_MAGIC_EVAL_INTERNAL_FUNCTION (e2) && | |
| 453 internal_equal (EVENT_MAGIC_EVAL_OBJECT (e1), | |
| 454 EVENT_MAGIC_EVAL_OBJECT (e2), 0)); | |
| 428 | 455 |
| 456 case magic_event: | |
| 788 | 457 return event_stream_compare_magic_event (e1, e2); |
| 428 | 458 |
| 459 case empty_event: /* Empty and deallocated events are equal. */ | |
| 460 case dead_event: | |
| 461 return 1; | |
| 462 } | |
| 463 } | |
| 464 | |
| 665 | 465 static Hashcode |
| 428 | 466 event_hash (Lisp_Object obj, int depth) |
| 467 { | |
| 440 | 468 Lisp_Event *e = XEVENT (obj); |
| 665 | 469 Hashcode hash; |
| 428 | 470 |
| 471 hash = HASH2 (e->event_type, LISP_HASH (e->channel)); | |
| 472 switch (e->event_type) | |
| 473 { | |
| 474 case process_event: | |
| 1204 | 475 return HASH2 (hash, LISP_HASH (EVENT_PROCESS_PROCESS (e))); |
| 428 | 476 |
| 477 case timeout_event: | |
| 1204 | 478 return HASH3 (hash, |
| 479 internal_hash (EVENT_TIMEOUT_FUNCTION (e), depth + 1), | |
| 480 internal_hash (EVENT_TIMEOUT_OBJECT (e), depth + 1)); | |
| 428 | 481 |
| 482 case key_press_event: | |
| 1204 | 483 return HASH3 (hash, LISP_HASH (EVENT_KEY_KEYSYM (e)), |
| 484 EVENT_KEY_MODIFIERS (e)); | |
| 428 | 485 |
| 486 case button_press_event: | |
| 487 case button_release_event: | |
| 1204 | 488 return HASH3 (hash, EVENT_BUTTON_BUTTON (e), EVENT_BUTTON_MODIFIERS (e)); |
| 428 | 489 |
| 490 case pointer_motion_event: | |
| 1204 | 491 return HASH3 (hash, EVENT_MOTION_X (e), EVENT_MOTION_Y (e)); |
| 428 | 492 |
| 493 case misc_user_event: | |
| 1204 | 494 return HASH5 (hash, |
| 495 internal_hash (EVENT_MISC_USER_FUNCTION (e), depth + 1), | |
| 496 internal_hash (EVENT_MISC_USER_OBJECT (e), depth + 1), | |
| 497 EVENT_MISC_USER_BUTTON (e), EVENT_MISC_USER_MODIFIERS (e)); | |
| 428 | 498 |
| 499 case eval_event: | |
| 1204 | 500 return HASH3 (hash, internal_hash (EVENT_EVAL_FUNCTION (e), depth + 1), |
| 501 internal_hash (EVENT_EVAL_OBJECT (e), depth + 1)); | |
| 428 | 502 |
| 503 case magic_eval_event: | |
| 504 return HASH3 (hash, | |
| 1204 | 505 (Hashcode) EVENT_MAGIC_EVAL_INTERNAL_FUNCTION (e), |
| 506 internal_hash (EVENT_MAGIC_EVAL_OBJECT (e), depth + 1)); | |
| 428 | 507 |
| 508 case magic_event: | |
| 788 | 509 return HASH2 (hash, event_stream_hash_magic_event (e)); |
| 428 | 510 |
| 511 case empty_event: | |
| 512 case dead_event: | |
| 513 return hash; | |
| 514 | |
| 515 default: | |
| 2500 | 516 ABORT (); |
| 428 | 517 } |
| 518 | |
| 519 return 0; /* unreached */ | |
| 520 } | |
| 934 | 521 |
| 522 DEFINE_BASIC_LRECORD_IMPLEMENTATION ("event", event, | |
| 523 0, /*dumpable-flag*/ | |
| 524 mark_event, print_event, 0, event_equal, | |
| 1204 | 525 event_hash, event_description, |
| 526 Lisp_Event); | |
| 428 | 527 |
| 528 DEFUN ("make-event", Fmake_event, 0, 2, 0, /* | |
| 529 Return a new event of type TYPE, with properties described by PLIST. | |
| 530 | |
| 531 TYPE is a symbol, either `empty', `key-press', `button-press', | |
| 532 `button-release', `misc-user' or `motion'. If TYPE is nil, it | |
| 533 defaults to `empty'. | |
| 534 | |
| 535 PLIST is a property list, the properties being compatible to those | |
| 536 returned by `event-properties'. The following properties are | |
| 537 allowed: | |
| 538 | |
| 539 channel -- The event channel, a frame or a console. For | |
| 540 button-press, button-release, misc-user and motion events, | |
| 541 this must be a frame. For key-press events, it must be | |
| 542 a console. If channel is unspecified, it will be set to | |
| 543 the selected frame or selected console, as appropriate. | |
| 544 key -- The event key, a symbol or character. Allowed only for | |
| 545 keypress events. | |
| 546 button -- The event button, integer 1, 2 or 3. Allowed for | |
| 547 button-press, button-release and misc-user events. | |
| 548 modifiers -- The event modifiers, a list of modifier symbols. Allowed | |
| 549 for key-press, button-press, button-release, motion and | |
| 550 misc-user events. | |
| 551 function -- Function. Allowed for misc-user events only. | |
| 552 object -- An object, function's parameter. Allowed for misc-user | |
| 553 events only. | |
| 554 x -- The event X coordinate, an integer. This is relative | |
| 555 to the left of CHANNEL's root window. Allowed for | |
| 556 motion, button-press, button-release and misc-user events. | |
| 557 y -- The event Y coordinate, an integer. This is relative | |
| 558 to the top of CHANNEL's root window. Allowed for | |
| 559 motion, button-press, button-release and misc-user events. | |
| 560 timestamp -- The event timestamp, a non-negative integer. Allowed for | |
| 561 all types of events. If unspecified, it will be set to 0 | |
| 562 by default. | |
| 563 | |
| 564 For event type `empty', PLIST must be nil. | |
| 565 `button-release', or `motion'. If TYPE is left out, it defaults to | |
| 566 `empty'. | |
| 567 PLIST is a list of properties, as returned by `event-properties'. Not | |
| 568 all properties are allowed for all kinds of events, and some are | |
| 569 required. | |
| 570 | |
| 571 WARNING: the event object returned may be a reused one; see the function | |
| 572 `deallocate-event'. | |
| 573 */ | |
| 574 (type, plist)) | |
| 575 { | |
| 576 Lisp_Object event = Qnil; | |
| 440 | 577 Lisp_Event *e; |
| 428 | 578 EMACS_INT coord_x = 0, coord_y = 0; |
| 579 struct gcpro gcpro1; | |
| 580 | |
| 581 GCPRO1 (event); | |
| 582 | |
| 583 if (NILP (type)) | |
| 584 type = Qempty; | |
| 585 | |
| 586 if (!NILP (Vevent_resource)) | |
| 587 { | |
| 588 event = Vevent_resource; | |
| 589 Vevent_resource = XEVENT_NEXT (event); | |
| 590 } | |
| 591 else | |
| 592 { | |
| 593 event = allocate_event (); | |
| 594 } | |
| 595 e = XEVENT (event); | |
| 596 zero_event (e); | |
| 597 | |
| 598 if (EQ (type, Qempty)) | |
| 599 { | |
| 600 /* For empty event, we return immediately, without processing | |
| 601 PLIST. In fact, processing PLIST would be wrong, because the | |
| 602 sanitizing process would fill in the properties | |
| 603 (e.g. CHANNEL), which we don't want in empty events. */ | |
| 934 | 604 set_event_type (e, empty_event); |
| 428 | 605 if (!NILP (plist)) |
| 563 | 606 invalid_operation ("Cannot set properties of empty event", plist); |
| 428 | 607 UNGCPRO; |
| 608 return event; | |
| 609 } | |
| 610 else if (EQ (type, Qkey_press)) | |
| 611 { | |
| 934 | 612 set_event_type (e, key_press_event); |
| 1204 | 613 SET_EVENT_KEY_KEYSYM (e, Qunbound); |
| 428 | 614 } |
| 615 else if (EQ (type, Qbutton_press)) | |
| 934 | 616 set_event_type (e, button_press_event); |
| 428 | 617 else if (EQ (type, Qbutton_release)) |
| 934 | 618 set_event_type (e, button_release_event); |
| 428 | 619 else if (EQ (type, Qmotion)) |
| 934 | 620 set_event_type (e, pointer_motion_event); |
| 428 | 621 else if (EQ (type, Qmisc_user)) |
| 622 { | |
| 934 | 623 set_event_type (e, misc_user_event); |
| 1204 | 624 SET_EVENT_MISC_USER_FUNCTION (e, Qnil); |
| 625 SET_EVENT_MISC_USER_OBJECT (e, Qnil); | |
| 428 | 626 } |
| 627 else | |
| 628 { | |
| 629 /* Not allowed: Qprocess, Qtimeout, Qmagic, Qeval, Qmagic_eval. */ | |
| 563 | 630 invalid_constant ("Invalid event type", type); |
| 428 | 631 } |
| 632 | |
| 633 EVENT_CHANNEL (e) = Qnil; | |
| 634 | |
| 635 plist = Fcopy_sequence (plist); | |
| 636 Fcanonicalize_plist (plist, Qnil); | |
| 637 | |
| 442 | 638 #define WRONG_EVENT_TYPE_FOR_PROPERTY(event_type, prop) \ |
| 563 | 639 invalid_argument_2 ("Invalid property for event type", prop, event_type) |
| 428 | 640 |
| 442 | 641 { |
| 642 EXTERNAL_PROPERTY_LIST_LOOP_3 (keyword, value, plist) | |
| 643 { | |
| 644 if (EQ (keyword, Qchannel)) | |
| 645 { | |
| 1204 | 646 if (EVENT_TYPE (e) == key_press_event) |
| 442 | 647 { |
| 648 if (!CONSOLEP (value)) | |
| 649 value = wrong_type_argument (Qconsolep, value); | |
| 650 } | |
| 651 else | |
| 652 { | |
| 653 if (!FRAMEP (value)) | |
| 654 value = wrong_type_argument (Qframep, value); | |
| 655 } | |
| 656 EVENT_CHANNEL (e) = value; | |
| 657 } | |
| 658 else if (EQ (keyword, Qkey)) | |
| 659 { | |
| 1204 | 660 switch (EVENT_TYPE (e)) |
| 442 | 661 { |
| 662 case key_press_event: | |
| 663 if (!SYMBOLP (value) && !CHARP (value)) | |
| 563 | 664 invalid_argument ("Invalid event key", value); |
| 1204 | 665 SET_EVENT_KEY_KEYSYM (e, value); |
| 442 | 666 break; |
| 667 default: | |
| 668 WRONG_EVENT_TYPE_FOR_PROPERTY (type, keyword); | |
| 669 break; | |
| 670 } | |
| 671 } | |
| 672 else if (EQ (keyword, Qbutton)) | |
| 673 { | |
| 674 CHECK_NATNUM (value); | |
| 675 check_int_range (XINT (value), 0, 7); | |
| 428 | 676 |
| 1204 | 677 switch (EVENT_TYPE (e)) |
| 442 | 678 { |
| 679 case button_press_event: | |
| 680 case button_release_event: | |
| 1204 | 681 SET_EVENT_BUTTON_BUTTON (e, XINT (value)); |
| 442 | 682 break; |
| 683 case misc_user_event: | |
| 1204 | 684 SET_EVENT_MISC_USER_BUTTON (e, XINT (value)); |
| 442 | 685 break; |
| 686 default: | |
| 687 WRONG_EVENT_TYPE_FOR_PROPERTY (type, keyword); | |
| 688 break; | |
| 689 } | |
| 690 } | |
| 691 else if (EQ (keyword, Qmodifiers)) | |
| 692 { | |
| 693 int modifiers = 0; | |
| 428 | 694 |
| 442 | 695 EXTERNAL_LIST_LOOP_2 (sym, value) |
| 696 { | |
| 697 if (EQ (sym, Qcontrol)) modifiers |= XEMACS_MOD_CONTROL; | |
| 698 else if (EQ (sym, Qmeta)) modifiers |= XEMACS_MOD_META; | |
| 699 else if (EQ (sym, Qsuper)) modifiers |= XEMACS_MOD_SUPER; | |
| 700 else if (EQ (sym, Qhyper)) modifiers |= XEMACS_MOD_HYPER; | |
| 701 else if (EQ (sym, Qalt)) modifiers |= XEMACS_MOD_ALT; | |
| 702 else if (EQ (sym, Qsymbol)) modifiers |= XEMACS_MOD_ALT; | |
| 703 else if (EQ (sym, Qshift)) modifiers |= XEMACS_MOD_SHIFT; | |
| 704 else if (EQ (sym, Qbutton1)) modifiers |= XEMACS_MOD_BUTTON1; | |
| 705 else if (EQ (sym, Qbutton2)) modifiers |= XEMACS_MOD_BUTTON2; | |
| 706 else if (EQ (sym, Qbutton3)) modifiers |= XEMACS_MOD_BUTTON3; | |
| 707 else if (EQ (sym, Qbutton4)) modifiers |= XEMACS_MOD_BUTTON4; | |
| 708 else if (EQ (sym, Qbutton5)) modifiers |= XEMACS_MOD_BUTTON5; | |
| 709 else | |
| 563 | 710 invalid_constant ("Invalid key modifier", sym); |
| 442 | 711 } |
| 428 | 712 |
| 1204 | 713 switch (EVENT_TYPE (e)) |
| 442 | 714 { |
| 715 case key_press_event: | |
| 1204 | 716 SET_EVENT_KEY_MODIFIERS (e, modifiers); |
| 442 | 717 break; |
| 718 case button_press_event: | |
| 719 case button_release_event: | |
| 1204 | 720 SET_EVENT_BUTTON_MODIFIERS (e, modifiers); |
| 442 | 721 break; |
| 722 case pointer_motion_event: | |
| 1204 | 723 SET_EVENT_MOTION_MODIFIERS (e, modifiers); |
| 442 | 724 break; |
| 725 case misc_user_event: | |
| 1204 | 726 SET_EVENT_MISC_USER_MODIFIERS (e, modifiers); |
| 442 | 727 break; |
| 728 default: | |
| 729 WRONG_EVENT_TYPE_FOR_PROPERTY (type, keyword); | |
| 730 break; | |
| 731 } | |
| 732 } | |
| 733 else if (EQ (keyword, Qx)) | |
| 734 { | |
| 1204 | 735 switch (EVENT_TYPE (e)) |
| 442 | 736 { |
| 737 case pointer_motion_event: | |
| 738 case button_press_event: | |
| 739 case button_release_event: | |
| 740 case misc_user_event: | |
| 741 /* Allow negative values, so we can specify toolbar | |
| 742 positions. */ | |
| 743 CHECK_INT (value); | |
| 744 coord_x = XINT (value); | |
| 745 break; | |
| 746 default: | |
| 747 WRONG_EVENT_TYPE_FOR_PROPERTY (type, keyword); | |
| 748 break; | |
| 749 } | |
| 750 } | |
| 751 else if (EQ (keyword, Qy)) | |
| 752 { | |
| 1204 | 753 switch (EVENT_TYPE (e)) |
| 442 | 754 { |
| 755 case pointer_motion_event: | |
| 756 case button_press_event: | |
| 757 case button_release_event: | |
| 758 case misc_user_event: | |
| 759 /* Allow negative values; see above. */ | |
| 760 CHECK_INT (value); | |
| 761 coord_y = XINT (value); | |
| 762 break; | |
| 763 default: | |
| 764 WRONG_EVENT_TYPE_FOR_PROPERTY (type, keyword); | |
| 765 break; | |
| 766 } | |
| 767 } | |
| 768 else if (EQ (keyword, Qtimestamp)) | |
| 769 { | |
| 770 CHECK_NATNUM (value); | |
| 934 | 771 SET_EVENT_TIMESTAMP (e, XINT (value)); |
| 442 | 772 } |
| 773 else if (EQ (keyword, Qfunction)) | |
| 774 { | |
| 1204 | 775 switch (EVENT_TYPE (e)) |
| 442 | 776 { |
| 777 case misc_user_event: | |
| 1204 | 778 SET_EVENT_MISC_USER_FUNCTION (e, value); |
| 442 | 779 break; |
| 780 default: | |
| 781 WRONG_EVENT_TYPE_FOR_PROPERTY (type, keyword); | |
| 782 break; | |
| 783 } | |
| 784 } | |
| 785 else if (EQ (keyword, Qobject)) | |
| 786 { | |
| 1204 | 787 switch (EVENT_TYPE (e)) |
| 442 | 788 { |
| 789 case misc_user_event: | |
| 1204 | 790 SET_EVENT_MISC_USER_OBJECT (e, value); |
| 442 | 791 break; |
| 792 default: | |
| 793 WRONG_EVENT_TYPE_FOR_PROPERTY (type, keyword); | |
| 794 break; | |
| 795 } | |
| 796 } | |
| 797 else | |
| 563 | 798 invalid_constant_2 ("Invalid property", keyword, value); |
| 442 | 799 } |
| 800 } | |
| 428 | 801 |
| 802 /* Insert the channel, if missing. */ | |
| 803 if (NILP (EVENT_CHANNEL (e))) | |
| 804 { | |
| 934 | 805 if (EVENT_TYPE (e) == key_press_event) |
| 428 | 806 EVENT_CHANNEL (e) = Vselected_console; |
| 807 else | |
| 808 EVENT_CHANNEL (e) = Fselected_frame (Qnil); | |
| 809 } | |
| 810 | |
| 811 /* Fevent_properties, Fevent_x_pixel, etc. work with pixels relative | |
| 812 to the frame, so we must adjust accordingly. */ | |
| 813 if (FRAMEP (EVENT_CHANNEL (e))) | |
| 814 { | |
| 815 coord_x += FRAME_REAL_LEFT_TOOLBAR_WIDTH (XFRAME (EVENT_CHANNEL (e))); | |
| 816 coord_y += FRAME_REAL_TOP_TOOLBAR_HEIGHT (XFRAME (EVENT_CHANNEL (e))); | |
| 817 | |
| 818 switch (e->event_type) | |
| 819 { | |
| 820 case pointer_motion_event: | |
| 1204 | 821 SET_EVENT_MOTION_X (e, coord_x); |
| 822 SET_EVENT_MOTION_Y (e, coord_y); | |
| 428 | 823 break; |
| 824 case button_press_event: | |
| 825 case button_release_event: | |
| 1204 | 826 SET_EVENT_BUTTON_X (e, coord_x); |
| 827 SET_EVENT_BUTTON_Y (e, coord_y); | |
| 428 | 828 break; |
| 829 case misc_user_event: | |
| 1204 | 830 SET_EVENT_MISC_USER_X (e, coord_x); |
| 831 SET_EVENT_MISC_USER_Y (e, coord_y); | |
| 428 | 832 break; |
| 833 default: | |
| 2500 | 834 ABORT (); |
| 428 | 835 } |
| 836 } | |
| 837 | |
| 838 /* Finally, do some more validation. */ | |
| 1204 | 839 switch (EVENT_TYPE (e)) |
| 428 | 840 { |
| 841 case key_press_event: | |
| 1204 | 842 if (UNBOUNDP (EVENT_KEY_KEYSYM (e))) |
| 563 | 843 sferror ("A key must be specified to make a keypress event", |
| 442 | 844 plist); |
| 428 | 845 break; |
| 846 case button_press_event: | |
| 1204 | 847 if (!EVENT_BUTTON_BUTTON (e)) |
| 563 | 848 sferror |
| 442 | 849 ("A button must be specified to make a button-press event", |
| 850 plist); | |
| 428 | 851 break; |
| 852 case button_release_event: | |
| 1204 | 853 if (!EVENT_BUTTON_BUTTON (e)) |
| 563 | 854 sferror |
| 442 | 855 ("A button must be specified to make a button-release event", |
| 856 plist); | |
| 428 | 857 break; |
| 858 case misc_user_event: | |
| 1204 | 859 if (NILP (EVENT_MISC_USER_FUNCTION (e))) |
| 563 | 860 sferror ("A function must be specified to make a misc-user event", |
| 442 | 861 plist); |
| 428 | 862 break; |
| 863 default: | |
| 864 break; | |
| 865 } | |
| 866 | |
| 867 UNGCPRO; | |
| 868 return event; | |
| 869 } | |
| 870 | |
| 871 DEFUN ("deallocate-event", Fdeallocate_event, 1, 1, 0, /* | |
| 872 Allow the given event structure to be reused. | |
| 873 You MUST NOT use this event object after calling this function with it. | |
| 874 You will lose. It is not necessary to call this function, as event | |
| 875 objects are garbage-collected like all other objects; however, it may | |
| 876 be more efficient to explicitly deallocate events when you are sure | |
| 877 that it is safe to do so. | |
| 878 */ | |
| 879 (event)) | |
| 880 { | |
| 881 CHECK_EVENT (event); | |
| 882 | |
| 883 if (XEVENT_TYPE (event) == dead_event) | |
| 563 | 884 invalid_argument ("this event is already deallocated!", Qunbound); |
| 428 | 885 |
| 886 assert (XEVENT_TYPE (event) <= last_event_type); | |
| 887 | |
| 888 #if 0 | |
| 889 { | |
| 890 int i, len; | |
| 891 | |
| 892 if (EQ (event, Vlast_command_event) || | |
| 893 EQ (event, Vlast_input_event) || | |
| 894 EQ (event, Vunread_command_event)) | |
| 2500 | 895 ABORT (); |
| 428 | 896 |
| 897 len = XVECTOR_LENGTH (Vthis_command_keys); | |
| 898 for (i = 0; i < len; i++) | |
| 899 if (EQ (event, XVECTOR_DATA (Vthis_command_keys) [i])) | |
| 2500 | 900 ABORT (); |
| 428 | 901 if (!NILP (Vrecent_keys_ring)) |
| 902 { | |
| 903 int recent_ring_len = XVECTOR_LENGTH (Vrecent_keys_ring); | |
| 904 for (i = 0; i < recent_ring_len; i++) | |
| 905 if (EQ (event, XVECTOR_DATA (Vrecent_keys_ring) [i])) | |
| 2500 | 906 ABORT (); |
| 428 | 907 } |
| 908 } | |
| 909 #endif /* 0 */ | |
| 910 | |
| 911 assert (!EQ (event, Vevent_resource)); | |
| 912 deinitialize_event (event); | |
| 913 #ifndef ALLOC_NO_POOLS | |
| 914 XSET_EVENT_NEXT (event, Vevent_resource); | |
| 915 Vevent_resource = event; | |
| 916 #endif | |
| 917 return Qnil; | |
| 918 } | |
| 919 | |
| 920 DEFUN ("copy-event", Fcopy_event, 1, 2, 0, /* | |
| 444 | 921 Make a copy of the event object EVENT1. |
| 922 If a second event argument EVENT2 is given, EVENT1 is copied into | |
| 923 EVENT2 and EVENT2 is returned. If EVENT2 is not supplied (or is nil) | |
| 924 then a new event will be made as with `make-event'. See also the | |
| 925 function `deallocate-event'. | |
| 428 | 926 */ |
| 927 (event1, event2)) | |
| 928 { | |
| 929 CHECK_LIVE_EVENT (event1); | |
| 930 if (NILP (event2)) | |
| 931 event2 = Fmake_event (Qnil, Qnil); | |
| 430 | 932 else |
| 933 { | |
| 934 CHECK_LIVE_EVENT (event2); | |
| 935 if (EQ (event1, event2)) | |
| 563 | 936 return signal_continuable_error_2 |
| 937 (Qinvalid_argument, | |
| 938 "copy-event called with `eq' events", event1, event2); | |
| 430 | 939 } |
| 428 | 940 |
| 941 assert (XEVENT_TYPE (event1) <= last_event_type); | |
| 942 assert (XEVENT_TYPE (event2) <= last_event_type); | |
| 943 | |
| 934 | 944 XSET_EVENT_TYPE (event2, XEVENT_TYPE (event1)); |
| 945 XSET_EVENT_CHANNEL (event2, XEVENT_CHANNEL (event1)); | |
| 946 XSET_EVENT_TIMESTAMP (event2, XEVENT_TIMESTAMP (event1)); | |
| 1204 | 947 |
| 948 #ifdef EVENT_DATA_AS_OBJECTS | |
| 949 copy_lisp_object (XEVENT_DATA (event2), XEVENT_DATA (event1)); | |
| 950 #else | |
| 951 XEVENT (event2)->event = XEVENT (event1)->event; | |
| 952 #endif | |
| 934 | 953 return event2; |
| 428 | 954 } |
| 955 | |
| 956 | |
| 771 | 957 /************************************************************************/ |
| 958 /* event chain functions */ | |
| 959 /************************************************************************/ | |
| 428 | 960 |
| 961 /* Given a chain of events (or possibly nil), deallocate them all. */ | |
| 962 | |
| 963 void | |
| 964 deallocate_event_chain (Lisp_Object event_chain) | |
| 965 { | |
| 966 while (!NILP (event_chain)) | |
| 967 { | |
| 968 Lisp_Object next = XEVENT_NEXT (event_chain); | |
| 969 Fdeallocate_event (event_chain); | |
| 970 event_chain = next; | |
| 971 } | |
| 972 } | |
| 973 | |
| 974 /* Return the last event in a chain. | |
| 975 NOTE: You cannot pass nil as a value here! The routine will | |
| 976 abort if you do. */ | |
| 977 | |
| 978 Lisp_Object | |
| 979 event_chain_tail (Lisp_Object event_chain) | |
| 980 { | |
| 981 while (1) | |
| 982 { | |
| 983 Lisp_Object next = XEVENT_NEXT (event_chain); | |
| 984 if (NILP (next)) | |
| 985 return event_chain; | |
| 986 event_chain = next; | |
| 987 } | |
| 988 } | |
| 989 | |
| 990 /* Enqueue a single event onto the end of a chain of events. | |
| 991 HEAD points to the first event in the chain, TAIL to the last event. | |
| 992 If the chain is empty, both values should be nil. */ | |
| 993 | |
| 994 void | |
| 995 enqueue_event (Lisp_Object event, Lisp_Object *head, Lisp_Object *tail) | |
| 996 { | |
| 997 assert (NILP (XEVENT_NEXT (event))); | |
| 998 assert (!EQ (*tail, event)); | |
| 999 | |
| 1000 if (!NILP (*tail)) | |
| 1001 XSET_EVENT_NEXT (*tail, event); | |
| 1002 else | |
| 1003 *head = event; | |
| 1004 *tail = event; | |
| 1005 | |
| 1006 assert (!EQ (event, XEVENT_NEXT (event))); | |
| 1007 } | |
| 1008 | |
| 1009 /* Remove an event off the head of a chain of events and return it. | |
| 1010 HEAD points to the first event in the chain, TAIL to the last event. */ | |
| 1011 | |
| 1012 Lisp_Object | |
| 1013 dequeue_event (Lisp_Object *head, Lisp_Object *tail) | |
| 1014 { | |
| 1015 Lisp_Object event; | |
| 1016 | |
| 1017 event = *head; | |
| 1018 *head = XEVENT_NEXT (event); | |
| 1019 XSET_EVENT_NEXT (event, Qnil); | |
| 1020 if (NILP (*head)) | |
| 1021 *tail = Qnil; | |
| 1022 return event; | |
| 1023 } | |
| 1024 | |
| 1025 /* Enqueue a chain of events (or possibly nil) onto the end of another | |
| 1026 chain of events. HEAD points to the first event in the chain being | |
| 1027 queued onto, TAIL to the last event. If the chain is empty, both values | |
| 1028 should be nil. */ | |
| 1029 | |
| 1030 void | |
| 1031 enqueue_event_chain (Lisp_Object event_chain, Lisp_Object *head, | |
| 1032 Lisp_Object *tail) | |
| 1033 { | |
| 1034 if (NILP (event_chain)) | |
| 1035 return; | |
| 1036 | |
| 1037 if (NILP (*head)) | |
| 1038 { | |
| 1039 *head = event_chain; | |
| 1040 *tail = event_chain; | |
| 1041 } | |
| 1042 else | |
| 1043 { | |
| 1044 XSET_EVENT_NEXT (*tail, event_chain); | |
| 1045 *tail = event_chain_tail (event_chain); | |
| 1046 } | |
| 1047 } | |
| 1048 | |
| 1204 | 1049 /* Map a function over each event in the chain. If the function returns |
| 1050 non-zero, remove the event just processed. Return the total number of | |
| 1051 items removed. | |
| 1052 | |
| 1053 NOTE: | |
| 1054 | |
| 1055 If you want a simple mapping over an event chain, with no intention to | |
| 1056 add or remove items, just use EVENT_CHAIN_LOOP(). | |
| 1057 */ | |
| 1058 | |
| 1059 int | |
| 1060 map_event_chain_remove (int (*fn) (Lisp_Object ev, void *user_data), | |
| 1061 Lisp_Object *head, Lisp_Object *tail, | |
| 1062 void *user_data, int flags) | |
| 1063 { | |
| 1064 Lisp_Object event; | |
| 1065 Lisp_Object previous_event = Qnil; | |
| 1066 int count = 0; | |
| 1067 | |
| 1068 EVENT_CHAIN_LOOP (event, *head) | |
| 1069 { | |
| 1070 if (fn (event, user_data)) | |
| 1071 { | |
| 1072 if (NILP (previous_event)) | |
| 1073 dequeue_event (head, tail); | |
| 1074 else | |
| 1075 { | |
| 1076 XSET_EVENT_NEXT (previous_event, XEVENT_NEXT (event)); | |
| 1077 if (EQ (*tail, event)) | |
| 1078 *tail = previous_event; | |
| 1079 } | |
| 1080 | |
| 1081 if (flags & MECR_DEALLOCATE_EVENT) | |
| 1082 Fdeallocate_event (event); | |
| 1083 count++; | |
| 1084 } | |
| 1085 else | |
| 1086 previous_event = event; | |
| 1087 } | |
| 1088 return count; | |
| 1089 } | |
| 1090 | |
| 428 | 1091 /* Return the number of events (possibly 0) on an event chain. */ |
| 1092 | |
| 1093 int | |
| 1094 event_chain_count (Lisp_Object event_chain) | |
| 1095 { | |
| 1096 Lisp_Object event; | |
| 1097 int n = 0; | |
| 1098 | |
| 1099 EVENT_CHAIN_LOOP (event, event_chain) | |
| 1100 n++; | |
| 1101 | |
| 1102 return n; | |
| 1103 } | |
| 1104 | |
| 1105 /* Find the event before EVENT in an event chain. This aborts | |
| 1106 if the event is not in the chain. */ | |
| 1107 | |
| 1108 Lisp_Object | |
| 1109 event_chain_find_previous (Lisp_Object event_chain, Lisp_Object event) | |
| 1110 { | |
| 1111 Lisp_Object previous = Qnil; | |
| 1112 | |
| 1113 while (!NILP (event_chain)) | |
| 1114 { | |
| 1115 if (EQ (event_chain, event)) | |
| 1116 return previous; | |
| 1117 previous = event_chain; | |
| 1118 event_chain = XEVENT_NEXT (event_chain); | |
| 1119 } | |
| 1120 | |
| 2500 | 1121 ABORT (); |
| 428 | 1122 return Qnil; |
| 1123 } | |
| 1124 | |
| 1125 Lisp_Object | |
| 1126 event_chain_nth (Lisp_Object event_chain, int n) | |
| 1127 { | |
| 1128 Lisp_Object event; | |
| 1129 EVENT_CHAIN_LOOP (event, event_chain) | |
| 1130 { | |
| 1131 if (!n) | |
| 1132 return event; | |
| 1133 n--; | |
| 1134 } | |
| 1135 return Qnil; | |
| 1136 } | |
| 1137 | |
| 771 | 1138 /* Return a freshly allocated copy of all events in the given chain. */ |
| 1139 | |
| 428 | 1140 Lisp_Object |
| 1141 copy_event_chain (Lisp_Object event_chain) | |
| 1142 { | |
| 1143 Lisp_Object new_chain = Qnil; | |
| 1144 Lisp_Object new_chain_tail = Qnil; | |
| 1145 Lisp_Object event; | |
| 1146 | |
| 1147 EVENT_CHAIN_LOOP (event, event_chain) | |
| 1148 { | |
| 1149 Lisp_Object copy = Fcopy_event (event, Qnil); | |
| 1150 enqueue_event (copy, &new_chain, &new_chain_tail); | |
| 1151 } | |
| 1152 | |
| 1153 return new_chain; | |
| 1154 } | |
| 1155 | |
| 771 | 1156 /* Given a pointer (maybe nil) into an old chain (also maybe nil, if |
| 1157 pointer is nil) and a new chain which is a copy of the old, return | |
| 1158 the corresponding new pointer. */ | |
| 1159 Lisp_Object | |
| 1160 transfer_event_chain_pointer (Lisp_Object pointer, Lisp_Object old_chain, | |
| 1161 Lisp_Object new_chain) | |
| 1162 { | |
| 1163 if (NILP (pointer)) | |
| 1164 return Qnil; | |
| 1165 assert (!NILP (old_chain)); | |
| 800 | 1166 #ifdef ERROR_CHECK_STRUCTURES |
| 771 | 1167 /* make sure we're actually in the chain */ |
| 1168 event_chain_find_previous (old_chain, pointer); | |
| 1169 assert (event_chain_count (old_chain) == event_chain_count (new_chain)); | |
| 800 | 1170 #endif /* ERROR_CHECK_STRUCTURES */ |
| 771 | 1171 return event_chain_nth (new_chain, |
| 1172 event_chain_count (old_chain) - | |
| 1173 event_chain_count (pointer)); | |
| 1174 } | |
| 1175 | |
| 428 | 1176 |
| 771 | 1177 /************************************************************************/ |
| 1178 /* higher level functions */ | |
| 1179 /************************************************************************/ | |
| 428 | 1180 |
| 1181 Lisp_Object QKbackspace, QKtab, QKlinefeed, QKreturn, QKescape, | |
| 1182 QKspace, QKdelete; | |
| 1183 | |
| 1184 int | |
| 1185 command_event_p (Lisp_Object event) | |
| 1186 { | |
| 1187 switch (XEVENT_TYPE (event)) | |
| 1188 { | |
| 1189 case key_press_event: | |
| 1190 case button_press_event: | |
| 1191 case button_release_event: | |
| 1192 case misc_user_event: | |
| 1193 return 1; | |
| 1194 default: | |
| 1195 return 0; | |
| 1196 } | |
| 1197 } | |
| 1198 | |
|
4780
2fd201d73a92
Call character_to_event on characters received from XIM, event-Xt.c
Aidan Kehoe <kehoea@parhasard.net>
parents:
3092
diff
changeset
|
1199 /* META_BEHAVIOR can be one of the following values, defined in events.h: |
|
2fd201d73a92
Call character_to_event on characters received from XIM, event-Xt.c
Aidan Kehoe <kehoea@parhasard.net>
parents:
3092
diff
changeset
|
1200 |
|
2fd201d73a92
Call character_to_event on characters received from XIM, event-Xt.c
Aidan Kehoe <kehoea@parhasard.net>
parents:
3092
diff
changeset
|
1201 high_bit_is_meta |
|
2fd201d73a92
Call character_to_event on characters received from XIM, event-Xt.c
Aidan Kehoe <kehoea@parhasard.net>
parents:
3092
diff
changeset
|
1202 use_console_meta_flag |
|
2fd201d73a92
Call character_to_event on characters received from XIM, event-Xt.c
Aidan Kehoe <kehoea@parhasard.net>
parents:
3092
diff
changeset
|
1203 latin_1_maps_to_itself |
|
2fd201d73a92
Call character_to_event on characters received from XIM, event-Xt.c
Aidan Kehoe <kehoea@parhasard.net>
parents:
3092
diff
changeset
|
1204 |
| 1204 | 1205 DO_BACKSPACE_MAPPING means that if CON is a TTY, and C is a the TTY's |
| 1206 backspace character, the event will have keysym `backspace' instead of | |
| 1207 '(control h). It is clearly correct to do this conversion is the | |
| 1208 character was just read from a TTY, clearly incorrect inside of | |
| 1209 define-key, which must be able to handle all consoles. #### What about | |
| 1210 in other circumstances? #### Should the user have access to this flag? | |
| 1211 | |
| 1212 #### We need to go through and review all the flags in | |
| 1213 character_to_event() and event_to_character() and figure out exactly | |
| 1214 under what circumstances they should or should not be set, then go | |
| 1215 through and review all callers of character_to_event(), | |
| 1216 Fcharacter_to_event(), event_to_character(), and Fevent_to_character() | |
| 1217 and check that they are passing the correct flags in for their varied | |
| 1218 circumstances. | |
| 1219 | |
| 1220 #### Some of this garbage, and some of the flags, could go away if we | |
| 1221 implemented the suggestion, originally from event-Xt.c: | |
| 1222 | |
| 2828 | 1223 [[ The way that keysym correspondence to characters should work: |
| 1204 | 1224 - a Lisp_Event should contain a keysym AND a character slot. |
| 1225 - keybindings are tried with the keysym. If no binding can be found, | |
| 2828 | 1226 and there is a corresponding character, call self-insert-command. ]] |
| 1227 | |
| 1228 That's an X-specific way of thinking. All the other platforms--even | |
| 1229 the TTY, make sure you've done (set-input-mode t nil 1) and set your | |
| 1230 console coding system appropriately when checking--just use | |
| 1231 characters as emacs keysyms, and, together with defaulting to | |
| 1232 self-insert-command if an unbound key with a character correspondence | |
| 1233 is typed, that works fine for them. (Yes, this ignores GTK.) | |
| 1234 | |
| 1235 [[ [... snipping other suggestions which I've implemented.] | |
| 1236 Nuke the Qascii_character property. ]] | |
| 1204 | 1237 |
| 2828 | 1238 Well, we've renamed it anyway--it was badly named. |
| 1239 Qcharacter_of_keysym, here we go. It's really only with X11 that how | |
| 1240 to map between adiaeresis and (int-to-char #xE4), or ellipsis and | |
| 1241 whatever, becomes an issue, and IMO the property approach to this is | |
| 1242 fine. Aidan Kehoe, 2005-05-15. | |
| 1204 | 1243 |
| 2828 | 1244 [[ This would apparently solve a lot of different problems. ]] |
| 1245 | |
| 1246 I'd be interested to know what's left. Removing the allow-meta | |
| 1247 argument from event-to-character would be a Good Thing, IMO, but | |
| 1248 beyond that, I'm not sure what else there is to do wrt. key | |
| 1249 mappings. Of course, feedback from users of the Russian C-x facility | |
| 1250 is still needed. */ | |
| 428 | 1251 |
| 1252 void | |
| 867 | 1253 character_to_event (Ichar c, Lisp_Event *event, struct console *con, |
|
4780
2fd201d73a92
Call character_to_event on characters received from XIM, event-Xt.c
Aidan Kehoe <kehoea@parhasard.net>
parents:
3092
diff
changeset
|
1254 character_to_event_meta_behavior meta_behavior, |
| 2340 | 1255 int USED_IF_TTY (do_backspace_mapping)) |
| 428 | 1256 { |
| 1257 Lisp_Object k = Qnil; | |
| 442 | 1258 int m = 0; |
| 934 | 1259 if (EVENT_TYPE (event) == dead_event) |
| 563 | 1260 invalid_argument ("character-to-event called with a deallocated event!", Qunbound); |
| 428 | 1261 |
| 1262 #ifndef MULE | |
| 1263 c &= 255; | |
| 1264 #endif | |
|
4780
2fd201d73a92
Call character_to_event on characters received from XIM, event-Xt.c
Aidan Kehoe <kehoea@parhasard.net>
parents:
3092
diff
changeset
|
1265 if (meta_behavior != latin_1_maps_to_itself && c > 127 && c <= 255) |
| 428 | 1266 { |
| 1267 int meta_flag = 1; | |
|
4780
2fd201d73a92
Call character_to_event on characters received from XIM, event-Xt.c
Aidan Kehoe <kehoea@parhasard.net>
parents:
3092
diff
changeset
|
1268 if (meta_behavior == use_console_meta_flag && CONSOLE_TTY_P (con)) |
| 428 | 1269 meta_flag = TTY_FLAGS (con).meta_key; |
| 1270 switch (meta_flag) | |
| 1271 { | |
| 1272 case 0: /* ignore top bit; it's parity */ | |
| 1273 c -= 128; | |
| 1274 break; | |
| 1275 case 1: /* top bit is meta */ | |
| 1276 c -= 128; | |
| 442 | 1277 m = XEMACS_MOD_META; |
| 428 | 1278 break; |
| 1279 default: /* this is a real character */ | |
| 1280 break; | |
| 1281 } | |
| 1282 } | |
| 442 | 1283 if (c < ' ') c += '@', m |= XEMACS_MOD_CONTROL; |
| 1284 if (m & XEMACS_MOD_CONTROL) | |
| 428 | 1285 { |
| 1286 switch (c) | |
| 1287 { | |
| 442 | 1288 case 'I': k = QKtab; m &= ~XEMACS_MOD_CONTROL; break; |
| 1289 case 'J': k = QKlinefeed; m &= ~XEMACS_MOD_CONTROL; break; | |
| 1290 case 'M': k = QKreturn; m &= ~XEMACS_MOD_CONTROL; break; | |
| 1291 case '[': k = QKescape; m &= ~XEMACS_MOD_CONTROL; break; | |
| 428 | 1292 default: |
| 1204 | 1293 #if defined (HAVE_TTY) |
| 428 | 1294 if (do_backspace_mapping && |
| 1295 CHARP (con->tty_erase_char) && | |
| 1296 c - '@' == XCHAR (con->tty_erase_char)) | |
| 1297 { | |
| 1298 k = QKbackspace; | |
| 442 | 1299 m &= ~XEMACS_MOD_CONTROL; |
| 428 | 1300 } |
| 1204 | 1301 #endif /* defined (HAVE_TTY) */ |
| 428 | 1302 break; |
| 1303 } | |
| 1304 if (c >= 'A' && c <= 'Z') c -= 'A'-'a'; | |
| 1305 } | |
| 1204 | 1306 #if defined (HAVE_TTY) |
| 428 | 1307 else if (do_backspace_mapping && |
| 1308 CHARP (con->tty_erase_char) && c == XCHAR (con->tty_erase_char)) | |
| 1309 k = QKbackspace; | |
| 1204 | 1310 #endif /* defined (HAVE_TTY) */ |
| 428 | 1311 else if (c == 127) |
| 1312 k = QKdelete; | |
| 1313 else if (c == ' ') | |
| 1314 k = QKspace; | |
| 1315 | |
| 934 | 1316 set_event_type (event, key_press_event); |
| 1317 SET_EVENT_TIMESTAMP_ZERO (event); /* #### */ | |
| 1318 SET_EVENT_CHANNEL (event, wrap_console (con)); | |
| 1204 | 1319 SET_EVENT_KEY_KEYSYM (event, (!NILP (k) ? k : make_char (c))); |
| 1320 SET_EVENT_KEY_MODIFIERS (event, m); | |
| 428 | 1321 } |
| 1322 | |
| 867 | 1323 Ichar |
| 1204 | 1324 event_to_character (Lisp_Object event, |
| 428 | 1325 int allow_extra_modifiers, |
| 2828 | 1326 int allow_meta) |
| 428 | 1327 { |
| 867 | 1328 Ichar c = 0; |
| 428 | 1329 Lisp_Object code; |
| 1330 | |
| 1204 | 1331 if (XEVENT_TYPE (event) != key_press_event) |
| 428 | 1332 { |
| 1204 | 1333 assert (XEVENT_TYPE (event) != dead_event); |
| 428 | 1334 return -1; |
| 1335 } | |
| 1336 if (!allow_extra_modifiers && | |
| 2828 | 1337 XEVENT_KEY_MODIFIERS (event) & |
| 1338 (XEMACS_MOD_SUPER|XEMACS_MOD_HYPER|XEMACS_MOD_ALT)) | |
| 428 | 1339 return -1; |
| 1204 | 1340 if (CHAR_OR_CHAR_INTP (XEVENT_KEY_KEYSYM (event))) |
| 1341 c = XCHAR_OR_CHAR_INT (XEVENT_KEY_KEYSYM (event)); | |
| 1342 else if (!SYMBOLP (XEVENT_KEY_KEYSYM (event))) | |
| 2500 | 1343 ABORT (); |
| 1204 | 1344 else if (CHAR_OR_CHAR_INTP (code = Fget (XEVENT_KEY_KEYSYM (event), |
| 2828 | 1345 Qcharacter_of_keysym, Qnil))) |
| 428 | 1346 c = XCHAR_OR_CHAR_INT (code); |
| 1347 else | |
| 2828 | 1348 { |
| 1349 Lisp_Object thekeysym = XEVENT_KEY_KEYSYM (event); | |
| 1350 | |
| 1351 if (CHAR_OR_CHAR_INTP (code = Fget (thekeysym, Qascii_character, Qnil))) | |
| 1352 { | |
| 1353 c = XCHAR_OR_CHAR_INT (code); | |
| 1354 warn_when_safe(Qkey_mapping, Qwarning, | |
| 1355 "Obsolete key binding technique.\n" | |
| 428 | 1356 |
| 2828 | 1357 "Some code you're using bound %s to `self-insert-command' and messed around\n" |
| 1358 "with its `ascii-character' property. Doing this is deprecated, and the code\n" | |
| 1359 "should be updated to use the `set-character-of-keysym' interface.\n" | |
| 1360 "If you're the one updating the code, first check if there's still a need\n" | |
| 1361 "for it; we support many more X11 keysyms out of the box now than we did\n" | |
| 1362 "in the past. ", XSTRING_DATA(XSYMBOL_NAME(thekeysym))); | |
| 1363 /* Only show the warning once for each keysym. */ | |
| 1364 Fput(thekeysym, Qcharacter_of_keysym, code); | |
| 1365 } | |
| 1366 else | |
| 1367 { | |
| 1368 return -1; | |
| 1369 } | |
| 1370 } | |
| 1204 | 1371 if (XEVENT_KEY_MODIFIERS (event) & XEMACS_MOD_CONTROL) |
| 428 | 1372 { |
| 1373 if (c >= 'a' && c <= 'z') | |
| 1374 c -= ('a' - 'A'); | |
| 1375 else | |
| 1376 /* reject Control-Shift- keys */ | |
| 1377 if (c >= 'A' && c <= 'Z' && !allow_extra_modifiers) | |
| 1378 return -1; | |
| 1379 | |
| 1380 if (c >= '@' && c <= '_') | |
| 1381 c -= '@'; | |
| 1382 else if (c == ' ') /* C-space and C-@ are the same. */ | |
| 1383 c = 0; | |
| 1384 else | |
| 1385 /* reject keys that can't take Control- modifiers */ | |
| 1386 if (! allow_extra_modifiers) return -1; | |
| 1387 } | |
| 1388 | |
| 1204 | 1389 if (XEVENT_KEY_MODIFIERS (event) & XEMACS_MOD_META) |
| 428 | 1390 { |
| 1391 if (! allow_meta) return -1; | |
| 1204 | 1392 if (c >= 128) return -1; /* don't allow M-oslash (overlap) */ |
| 428 | 1393 c |= 0200; |
| 1394 } | |
| 1395 return c; | |
| 1396 } | |
| 1397 | |
| 2862 | 1398 DEFUN ("event-to-character", Fevent_to_character, 1, 4, 0, /* |
| 2828 | 1399 Return the closest character approximation to the given event object. |
| 428 | 1400 If the event isn't a keypress, this returns nil. |
| 1401 If the ALLOW-EXTRA-MODIFIERS argument is non-nil, then this is lenient in | |
| 1402 its translation; it will ignore modifier keys other than control and meta, | |
| 1403 and will ignore the shift modifier on those characters which have no | |
| 1404 shifted ASCII equivalent (Control-Shift-A for example, will be mapped to | |
| 1405 the same ASCII code as Control-A). | |
| 1406 If the ALLOW-META argument is non-nil, then the Meta modifier will be | |
| 1407 represented by turning on the high bit of the byte returned; otherwise, nil | |
| 1408 will be returned for events containing the Meta modifier. | |
| 1204 | 1409 Note that ALLOW-META may cause ambiguity between meta characters and |
| 1410 Latin-1 characters. | |
| 2862 | 1411 ALLOW-NON-ASCII is unused, and retained for compatibility. |
| 428 | 1412 */ |
| 2862 | 1413 (event, allow_extra_modifiers, allow_meta, UNUSED(allow_non_ascii))) |
| 428 | 1414 { |
| 867 | 1415 Ichar c; |
| 428 | 1416 CHECK_LIVE_EVENT (event); |
| 1204 | 1417 c = event_to_character (event, |
| 428 | 1418 !NILP (allow_extra_modifiers), |
| 2828 | 1419 !NILP (allow_meta)); |
| 428 | 1420 return c < 0 ? Qnil : make_char (c); |
| 1421 } | |
| 1422 | |
| 1423 DEFUN ("character-to-event", Fcharacter_to_event, 1, 4, 0, /* | |
| 444 | 1424 Convert KEY-DESCRIPTION into an event structure, replete with bucky bits. |
| 428 | 1425 |
| 444 | 1426 KEY-DESCRIPTION is the first argument, and the event to fill in is the |
| 1427 second. This function contains knowledge about what various kinds of | |
| 1428 arguments ``mean'' -- for example, the number 9 is converted to the | |
| 1429 character ``Tab'', not the distinct character ``Control-I''. | |
| 428 | 1430 |
| 3025 | 1431 KEY-DESCRIPTION can be an integer, a character, a symbol such as `clear', |
| 444 | 1432 or a list such as '(control backspace). |
| 1433 | |
| 1434 If the optional second argument EVENT is an event, it is modified and | |
| 1435 returned; otherwise, a new event object is created and returned. | |
| 428 | 1436 |
| 1437 Optional third arg CONSOLE is the console to store in the event, and | |
| 1438 defaults to the selected console. | |
| 1439 | |
| 444 | 1440 If KEY-DESCRIPTION is an integer or character, the high bit may be |
| 1204 | 1441 interpreted as the meta key. (This is done for backward compatibility in |
| 1442 lots of places -- specifically, because lots of Lisp code uses specs like | |
| 1443 ?\M-d and "\M-d" in key code, expecting this to work; yet these are in | |
| 1444 reality converted directly to 8-bit characters by the Lisp reader.) If | |
| 1445 USE-CONSOLE-META-FLAG is nil or CONSOLE is not a TTY, this will always be | |
| 1446 the case. If USE-CONSOLE-META-FLAG is non-nil and CONSOLE is a TTY, the | |
| 1447 `meta' flag for CONSOLE affects whether the high bit is interpreted as a | |
| 1448 meta key. (See `set-input-mode'.) Don't set this flag to non-nil unless | |
| 1449 you know what you're doing (more specifically, only if the character came | |
| 1450 directly from a TTY, not from the user). If you don't want this silly meta | |
| 1451 interpretation done, you should pass in a list containing the character. | |
| 428 | 1452 |
| 1453 Beware that character-to-event and event-to-character are not strictly | |
| 1454 inverse functions, since events contain much more information than the | |
| 444 | 1455 Lisp character object type can encode. |
| 428 | 1456 */ |
|
4780
2fd201d73a92
Call character_to_event on characters received from XIM, event-Xt.c
Aidan Kehoe <kehoea@parhasard.net>
parents:
3092
diff
changeset
|
1457 (keystroke, event, console, use_console_meta_flag_)) |
| 428 | 1458 { |
| 1459 struct console *con = decode_console (console); | |
| 1460 if (NILP (event)) | |
| 1461 event = Fmake_event (Qnil, Qnil); | |
| 1462 else | |
| 1463 CHECK_LIVE_EVENT (event); | |
| 444 | 1464 if (CONSP (keystroke) || SYMBOLP (keystroke)) |
| 1465 key_desc_list_to_event (keystroke, event, 1); | |
| 428 | 1466 else |
| 1467 { | |
| 444 | 1468 CHECK_CHAR_COERCE_INT (keystroke); |
| 1469 character_to_event (XCHAR (keystroke), XEVENT (event), con, | |
|
4780
2fd201d73a92
Call character_to_event on characters received from XIM, event-Xt.c
Aidan Kehoe <kehoea@parhasard.net>
parents:
3092
diff
changeset
|
1470 (NILP (use_console_meta_flag_) ? |
|
2fd201d73a92
Call character_to_event on characters received from XIM, event-Xt.c
Aidan Kehoe <kehoea@parhasard.net>
parents:
3092
diff
changeset
|
1471 high_bit_is_meta : use_console_meta_flag), 1); |
| 428 | 1472 } |
| 1473 return event; | |
| 1474 } | |
| 1475 | |
| 1476 void | |
| 1477 nth_of_key_sequence_as_event (Lisp_Object seq, int n, Lisp_Object event) | |
| 1478 { | |
| 1479 assert (STRINGP (seq) || VECTORP (seq)); | |
| 1480 assert (n < XINT (Flength (seq))); | |
| 1481 | |
| 1482 if (STRINGP (seq)) | |
| 1483 { | |
| 867 | 1484 Ichar ch = string_ichar (seq, n); |
| 428 | 1485 Fcharacter_to_event (make_char (ch), event, Qnil, Qnil); |
| 1486 } | |
| 1487 else | |
| 1488 { | |
| 1489 Lisp_Object keystroke = XVECTOR_DATA (seq)[n]; | |
| 1490 if (EVENTP (keystroke)) | |
| 1491 Fcopy_event (keystroke, event); | |
| 1492 else | |
| 1493 Fcharacter_to_event (keystroke, event, Qnil, Qnil); | |
| 1494 } | |
| 1495 } | |
| 1496 | |
| 1497 Lisp_Object | |
| 1498 key_sequence_to_event_chain (Lisp_Object seq) | |
| 1499 { | |
| 1500 int len = XINT (Flength (seq)); | |
| 1501 int i; | |
| 1502 Lisp_Object head = Qnil, tail = Qnil; | |
| 1503 | |
| 1504 for (i = 0; i < len; i++) | |
| 1505 { | |
| 1506 Lisp_Object event = Fmake_event (Qnil, Qnil); | |
| 1507 nth_of_key_sequence_as_event (seq, i, event); | |
| 1508 enqueue_event (event, &head, &tail); | |
| 1509 } | |
| 1510 | |
| 1511 return head; | |
| 1512 } | |
| 1513 | |
| 934 | 1514 |
| 793 | 1515 /* Concatenate a string description of EVENT onto the end of BUF. If |
| 1516 BRIEF, use short forms for keys, e.g. C- instead of control-. */ | |
| 1517 | |
| 934 | 1518 void |
| 1519 format_event_object (Eistring *buf, Lisp_Object event, int brief) | |
| 428 | 1520 { |
| 1521 int mouse_p = 0; | |
| 1522 int mod = 0; | |
| 1523 Lisp_Object key; | |
| 1524 | |
| 1204 | 1525 switch (XEVENT_TYPE (event)) |
| 428 | 1526 { |
| 1527 case key_press_event: | |
| 1528 { | |
| 1204 | 1529 mod = XEVENT_KEY_MODIFIERS (event); |
| 1530 key = XEVENT_KEY_KEYSYM (event); | |
| 428 | 1531 /* Hack. */ |
| 1532 if (! brief && CHARP (key) && | |
| 793 | 1533 mod & (XEMACS_MOD_CONTROL | XEMACS_MOD_META | XEMACS_MOD_SUPER | |
| 1534 XEMACS_MOD_HYPER)) | |
| 428 | 1535 { |
| 1536 int k = XCHAR (key); | |
| 1537 if (k >= 'a' && k <= 'z') | |
| 1538 key = make_char (k - ('a' - 'A')); | |
| 1539 else if (k >= 'A' && k <= 'Z') | |
| 442 | 1540 mod |= XEMACS_MOD_SHIFT; |
| 428 | 1541 } |
| 1542 break; | |
| 1543 } | |
| 1544 case button_release_event: | |
| 1545 mouse_p++; | |
| 1546 /* Fall through */ | |
| 1547 case button_press_event: | |
| 1548 { | |
| 1549 mouse_p++; | |
| 1204 | 1550 mod = XEVENT_BUTTON_MODIFIERS (event); |
| 1551 key = make_char (XEVENT_BUTTON_BUTTON (event) + '0'); | |
| 428 | 1552 break; |
| 1553 } | |
| 1554 case magic_event: | |
| 1555 { | |
| 788 | 1556 Lisp_Object stream; |
| 1557 struct gcpro gcpro1; | |
| 1558 GCPRO1 (stream); | |
| 428 | 1559 |
| 788 | 1560 stream = make_resizing_buffer_output_stream (); |
| 1204 | 1561 event_stream_format_magic_event (XEVENT (event), stream); |
| 788 | 1562 Lstream_flush (XLSTREAM (stream)); |
| 793 | 1563 eicat_raw (buf, resizing_buffer_stream_ptr (XLSTREAM (stream)), |
| 1564 Lstream_byte_count (XLSTREAM (stream))); | |
| 788 | 1565 Lstream_delete (XLSTREAM (stream)); |
| 1566 UNGCPRO; | |
| 428 | 1567 return; |
| 1568 } | |
| 2421 | 1569 case magic_eval_event: eicat_ascii (buf, "magic-eval"); return; |
| 1570 case pointer_motion_event: eicat_ascii (buf, "motion"); return; | |
| 1571 case misc_user_event: eicat_ascii (buf, "misc-user"); return; | |
| 1572 case eval_event: eicat_ascii (buf, "eval"); return; | |
| 1573 case process_event: eicat_ascii (buf, "process"); return; | |
| 1574 case timeout_event: eicat_ascii (buf, "timeout"); return; | |
| 1575 case empty_event: eicat_ascii (buf, "empty"); return; | |
| 1576 case dead_event: eicat_ascii (buf, "DEAD-EVENT"); return; | |
| 428 | 1577 default: |
| 2500 | 1578 ABORT (); |
| 442 | 1579 return; |
| 428 | 1580 } |
| 793 | 1581 #define modprint(x,y) \ |
| 2421 | 1582 do { if (brief) eicat_ascii (buf, (y)); else eicat_ascii (buf, (x)); } while (0) |
| 442 | 1583 if (mod & XEMACS_MOD_CONTROL) modprint ("control-", "C-"); |
| 1584 if (mod & XEMACS_MOD_META) modprint ("meta-", "M-"); | |
| 1585 if (mod & XEMACS_MOD_SUPER) modprint ("super-", "S-"); | |
| 1586 if (mod & XEMACS_MOD_HYPER) modprint ("hyper-", "H-"); | |
| 1587 if (mod & XEMACS_MOD_ALT) modprint ("alt-", "A-"); | |
| 1588 if (mod & XEMACS_MOD_SHIFT) modprint ("shift-", "Sh-"); | |
| 428 | 1589 if (mouse_p) |
| 1590 { | |
| 2421 | 1591 eicat_ascii (buf, "button"); |
| 428 | 1592 --mouse_p; |
| 1593 } | |
| 1594 | |
| 1595 #undef modprint | |
| 1596 | |
| 1597 if (CHARP (key)) | |
| 793 | 1598 eicat_ch (buf, XCHAR (key)); |
| 428 | 1599 else if (SYMBOLP (key)) |
| 1600 { | |
| 2367 | 1601 const Ascbyte *str = 0; |
| 428 | 1602 if (brief) |
| 1603 { | |
| 1604 if (EQ (key, QKlinefeed)) str = "LFD"; | |
| 1605 else if (EQ (key, QKtab)) str = "TAB"; | |
| 1606 else if (EQ (key, QKreturn)) str = "RET"; | |
| 1607 else if (EQ (key, QKescape)) str = "ESC"; | |
| 1608 else if (EQ (key, QKdelete)) str = "DEL"; | |
| 1609 else if (EQ (key, QKspace)) str = "SPC"; | |
| 1610 else if (EQ (key, QKbackspace)) str = "BS"; | |
| 1611 } | |
| 1612 if (str) | |
| 2421 | 1613 eicat_ascii (buf, str); |
| 428 | 1614 else |
| 793 | 1615 eicat_lstr (buf, XSYMBOL (key)->name); |
| 428 | 1616 } |
| 1617 else | |
| 2500 | 1618 ABORT (); |
| 428 | 1619 if (mouse_p) |
| 2421 | 1620 eicat_ascii (buf, "up"); |
| 428 | 1621 } |
| 1622 | |
| 1204 | 1623 void |
| 1624 upshift_event (Lisp_Object event) | |
| 1625 { | |
| 1626 Lisp_Object keysym = XEVENT_KEY_KEYSYM (event); | |
| 1627 Ichar c = 0; | |
| 1628 | |
| 1629 if (CHAR_OR_CHAR_INTP (keysym) | |
| 1630 && ((c = XCHAR_OR_CHAR_INT (keysym)), | |
| 1631 c >= 'a' && c <= 'z')) | |
| 1632 XSET_EVENT_KEY_KEYSYM (event, make_char (c + 'A' - 'a')); | |
| 1633 else | |
| 1634 if (!(XEVENT_KEY_MODIFIERS (event) & XEMACS_MOD_SHIFT)) | |
| 1635 XSET_EVENT_KEY_MODIFIERS | |
| 1636 (event, XEVENT_KEY_MODIFIERS (event) |= XEMACS_MOD_SHIFT); | |
| 1637 } | |
| 1638 | |
| 1639 void | |
| 1640 downshift_event (Lisp_Object event) | |
| 1641 { | |
| 1642 Lisp_Object keysym = XEVENT_KEY_KEYSYM (event); | |
| 1643 Ichar c = 0; | |
| 1644 | |
| 1645 if (XEVENT_KEY_MODIFIERS (event) & XEMACS_MOD_SHIFT) | |
| 1646 XSET_EVENT_KEY_MODIFIERS | |
| 1647 (event, XEVENT_KEY_MODIFIERS (event) & ~XEMACS_MOD_SHIFT); | |
| 1648 else if (CHAR_OR_CHAR_INTP (keysym) | |
| 1649 && ((c = XCHAR_OR_CHAR_INT (keysym)), | |
| 1650 c >= 'A' && c <= 'Z')) | |
| 1651 XSET_EVENT_KEY_KEYSYM (event, make_char (c + 'a' - 'A')); | |
| 1652 } | |
| 1653 | |
| 1654 int | |
| 1655 event_upshifted_p (Lisp_Object event) | |
| 1656 { | |
| 1657 Lisp_Object keysym = XEVENT_KEY_KEYSYM (event); | |
| 1658 Ichar c = 0; | |
| 1659 | |
| 1660 if ((XEVENT_KEY_MODIFIERS (event) & XEMACS_MOD_SHIFT) | |
| 1661 || (CHAR_OR_CHAR_INTP (keysym) | |
| 1662 && ((c = XCHAR_OR_CHAR_INT (keysym)), | |
| 1663 c >= 'A' && c <= 'Z'))) | |
| 1664 return 1; | |
| 1665 else | |
| 1666 return 0; | |
| 1667 } | |
| 934 | 1668 |
| 428 | 1669 DEFUN ("eventp", Feventp, 1, 1, 0, /* |
| 1670 True if OBJECT is an event object. | |
| 1671 */ | |
| 1672 (object)) | |
| 1673 { | |
| 1674 return EVENTP (object) ? Qt : Qnil; | |
| 1675 } | |
| 1676 | |
| 1677 DEFUN ("event-live-p", Fevent_live_p, 1, 1, 0, /* | |
| 1678 True if OBJECT is an event object that has not been deallocated. | |
| 1679 */ | |
| 1680 (object)) | |
| 1681 { | |
| 934 | 1682 return EVENTP (object) && XEVENT_TYPE (object) != dead_event ? |
| 1683 Qt : Qnil; | |
| 428 | 1684 } |
| 1685 | |
| 1686 #if 0 /* debugging functions */ | |
| 1687 | |
| 826 | 1688 DEFUN ("event-next", Fevent_next, 1, 1, 0, /* |
| 428 | 1689 Return the event object's `next' event, or nil if it has none. |
| 1690 The `next-event' field is changed by calling `set-next-event'. | |
| 1691 */ | |
| 1692 (event)) | |
| 1693 { | |
| 440 | 1694 Lisp_Event *e; |
| 428 | 1695 CHECK_LIVE_EVENT (event); |
| 1696 | |
| 1697 return XEVENT_NEXT (event); | |
| 1698 } | |
| 1699 | |
| 826 | 1700 DEFUN ("set-event-next", Fset_event_next, 2, 2, 0, /* |
| 428 | 1701 Set the `next event' of EVENT to NEXT-EVENT. |
| 1702 NEXT-EVENT must be an event object or nil. | |
| 1703 */ | |
| 1704 (event, next_event)) | |
| 1705 { | |
| 1706 Lisp_Object ev; | |
| 1707 | |
| 1708 CHECK_LIVE_EVENT (event); | |
| 1709 if (NILP (next_event)) | |
| 1710 { | |
| 1711 XSET_EVENT_NEXT (event, Qnil); | |
| 1712 return Qnil; | |
| 1713 } | |
| 1714 | |
| 1715 CHECK_LIVE_EVENT (next_event); | |
| 1716 | |
| 1717 EVENT_CHAIN_LOOP (ev, XEVENT_NEXT (event)) | |
| 1718 { | |
| 1719 QUIT; | |
| 1720 if (EQ (ev, event)) | |
| 563 | 1721 invalid_operation_2 ("Cyclic event-next", event, next_event); |
| 428 | 1722 } |
| 1723 XSET_EVENT_NEXT (event, next_event); | |
| 1724 return next_event; | |
| 1725 } | |
| 1726 | |
| 1727 #endif /* 0 */ | |
| 1728 | |
| 1729 DEFUN ("event-type", Fevent_type, 1, 1, 0, /* | |
| 1730 Return the type of EVENT. | |
| 1731 This will be a symbol; one of | |
| 1732 | |
| 1733 key-press A key was pressed. | |
| 1734 button-press A mouse button was pressed. | |
| 1735 button-release A mouse button was released. | |
| 1736 misc-user Some other user action happened; typically, this is | |
| 1737 a menu selection or scrollbar action. | |
| 1738 motion The mouse moved. | |
| 1739 process Input is available from a subprocess. | |
| 1740 timeout A timeout has expired. | |
| 1741 eval This causes a specified action to occur when dispatched. | |
| 1742 magic Some window-system-specific event has occurred. | |
| 1743 empty The event has been allocated but not assigned. | |
| 1744 | |
| 1745 */ | |
| 1746 (event)) | |
| 1747 { | |
| 1748 CHECK_LIVE_EVENT (event); | |
| 934 | 1749 switch (XEVENT_TYPE (event)) |
| 428 | 1750 { |
| 1751 case key_press_event: return Qkey_press; | |
| 1752 case button_press_event: return Qbutton_press; | |
| 1753 case button_release_event: return Qbutton_release; | |
| 1754 case misc_user_event: return Qmisc_user; | |
| 1755 case pointer_motion_event: return Qmotion; | |
| 1756 case process_event: return Qprocess; | |
| 1757 case timeout_event: return Qtimeout; | |
| 1758 case eval_event: return Qeval; | |
| 1759 case magic_event: | |
| 1760 case magic_eval_event: | |
| 1761 return Qmagic; | |
| 1762 | |
| 1763 case empty_event: | |
| 1764 return Qempty; | |
| 1765 | |
| 1766 default: | |
| 2500 | 1767 ABORT (); |
| 428 | 1768 return Qnil; |
| 1769 } | |
| 1770 } | |
| 1771 | |
| 1772 DEFUN ("event-timestamp", Fevent_timestamp, 1, 1, 0, /* | |
| 1773 Return the timestamp of the event object EVENT. | |
| 442 | 1774 Timestamps are measured in milliseconds since the start of the window system. |
| 1775 They are NOT related to any current time measurement. | |
| 1776 They should be compared with `event-timestamp<'. | |
| 1777 See also `current-event-timestamp'. | |
| 428 | 1778 */ |
| 1779 (event)) | |
| 1780 { | |
| 1781 CHECK_LIVE_EVENT (event); | |
| 1782 /* This junk is so that timestamps don't get to be negative, but contain | |
| 1783 as many bits as this particular emacs will allow. | |
| 1784 */ | |
| 2039 | 1785 return make_int (EMACS_INT_MAX & XEVENT_TIMESTAMP (event)); |
| 428 | 1786 } |
| 1787 | |
| 2039 | 1788 #define TIMESTAMP_HALFSPACE (1L << (INT_VALBITS - 2)) |
| 442 | 1789 |
| 1790 DEFUN ("event-timestamp<", Fevent_timestamp_lessp, 2, 2, 0, /* | |
| 1791 Return true if timestamp TIME1 is earlier than timestamp TIME2. | |
| 1792 This correctly handles timestamp wrap. | |
| 1793 See also `event-timestamp' and `current-event-timestamp'. | |
| 1794 */ | |
| 1795 (time1, time2)) | |
| 1796 { | |
| 1797 EMACS_INT t1, t2; | |
| 1798 | |
| 1799 CHECK_NATNUM (time1); | |
| 1800 CHECK_NATNUM (time2); | |
| 1801 t1 = XINT (time1); | |
| 1802 t2 = XINT (time2); | |
| 1803 | |
| 1804 if (t1 < t2) | |
| 1805 return t2 - t1 < TIMESTAMP_HALFSPACE ? Qt : Qnil; | |
| 1806 else | |
| 1807 return t1 - t2 < TIMESTAMP_HALFSPACE ? Qnil : Qt; | |
| 1808 } | |
| 1809 | |
| 934 | 1810 #define CHECK_EVENT_TYPE(e,t1,sym) do { \ |
| 1811 CHECK_LIVE_EVENT (e); \ | |
| 1812 if (XEVENT_TYPE (e) != (t1)) \ | |
| 1813 e = wrong_type_argument (sym,e); \ | |
| 1814 } while (0) | |
| 1815 | |
| 1816 #define CHECK_EVENT_TYPE2(e,t1,t2,sym) do { \ | |
| 1817 CHECK_LIVE_EVENT (e); \ | |
| 1818 { \ | |
| 1819 emacs_event_type CET_type = XEVENT_TYPE (e); \ | |
| 1820 if (CET_type != (t1) && \ | |
| 1821 CET_type != (t2)) \ | |
| 1822 e = wrong_type_argument (sym,e); \ | |
| 1823 } \ | |
| 1824 } while (0) | |
| 1825 | |
| 1826 #define CHECK_EVENT_TYPE3(e,t1,t2,t3,sym) do { \ | |
| 1827 CHECK_LIVE_EVENT (e); \ | |
| 1828 { \ | |
| 1829 emacs_event_type CET_type = XEVENT_TYPE (e); \ | |
| 1830 if (CET_type != (t1) && \ | |
| 1831 CET_type != (t2) && \ | |
| 1832 CET_type != (t3)) \ | |
| 1833 e = wrong_type_argument (sym,e); \ | |
| 1834 } \ | |
| 1835 } while (0) | |
| 428 | 1836 |
| 1837 DEFUN ("event-key", Fevent_key, 1, 1, 0, /* | |
| 1838 Return the Keysym of the key-press event EVENT. | |
| 1839 This will be a character if the event is associated with one, else a symbol. | |
| 1840 */ | |
| 1841 (event)) | |
| 1842 { | |
| 1843 CHECK_EVENT_TYPE (event, key_press_event, Qkey_press_event_p); | |
| 1204 | 1844 return XEVENT_KEY_KEYSYM (event); |
| 428 | 1845 } |
| 1846 | |
| 1847 DEFUN ("event-button", Fevent_button, 1, 1, 0, /* | |
| 444 | 1848 Return the button-number of the button-press or button-release event EVENT. |
| 428 | 1849 */ |
| 1850 (event)) | |
| 1851 { | |
| 1852 CHECK_EVENT_TYPE3 (event, button_press_event, button_release_event, | |
| 1853 misc_user_event, Qbutton_event_p); | |
| 1854 #ifdef HAVE_WINDOW_SYSTEM | |
| 1204 | 1855 if (XEVENT_TYPE (event) == misc_user_event) |
| 1856 return make_int (XEVENT_MISC_USER_BUTTON (event)); | |
| 934 | 1857 else |
| 1204 | 1858 return make_int (XEVENT_BUTTON_BUTTON (event)); |
| 428 | 1859 #else /* !HAVE_WINDOW_SYSTEM */ |
| 1860 return Qzero; | |
| 1861 #endif /* !HAVE_WINDOW_SYSTEM */ | |
| 1862 } | |
| 1863 | |
| 1864 DEFUN ("event-modifier-bits", Fevent_modifier_bits, 1, 1, 0, /* | |
| 442 | 1865 Return a number representing the modifier keys and buttons which were down |
| 428 | 1866 when the given mouse or keyboard event was produced. |
| 442 | 1867 See also the function `event-modifiers'. |
| 428 | 1868 */ |
| 1869 (event)) | |
| 1870 { | |
| 1871 again: | |
| 1872 CHECK_LIVE_EVENT (event); | |
| 934 | 1873 switch (XEVENT_TYPE (event)) |
| 1874 { | |
| 1875 case key_press_event: | |
| 1204 | 1876 return make_int (XEVENT_KEY_MODIFIERS (event)); |
| 934 | 1877 case button_press_event: |
| 1878 case button_release_event: | |
| 1204 | 1879 return make_int (XEVENT_BUTTON_MODIFIERS (event)); |
| 934 | 1880 case pointer_motion_event: |
| 1204 | 1881 return make_int (XEVENT_MOTION_MODIFIERS (event)); |
| 934 | 1882 case misc_user_event: |
| 1204 | 1883 return make_int (XEVENT_MISC_USER_MODIFIERS (event)); |
| 934 | 1884 default: |
| 1885 event = wrong_type_argument (intern ("key-or-mouse-event-p"), event); | |
| 1886 goto again; | |
| 1887 } | |
| 428 | 1888 } |
| 1889 | |
| 1890 DEFUN ("event-modifiers", Fevent_modifiers, 1, 1, 0, /* | |
| 442 | 1891 Return a list of symbols, the names of the modifier keys and buttons |
| 428 | 1892 which were down when the given mouse or keyboard event was produced. |
| 442 | 1893 See also the function `event-modifier-bits'. |
| 1894 | |
| 1895 The possible symbols in the list are | |
| 1896 | |
| 1897 `shift': The Shift key. Will not appear, in general, on key events | |
| 1898 where the keysym is an ASCII character, because using Shift | |
| 1899 on such a character converts it into another character rather | |
| 1900 than actually just adding a Shift modifier. | |
| 1901 | |
| 1902 `control': The Control key. | |
| 1903 | |
| 1904 `meta': The Meta key. On PC's and PC-style keyboards, this is generally | |
| 1905 labelled \"Alt\"; Meta is a holdover from early Lisp Machines and | |
| 1906 such, propagated through the X Window System. On Sun keyboards, | |
| 1907 this key is labelled with a diamond. | |
| 1908 | |
| 1909 `alt': The \"Alt\" key. Alt is in quotes because this does not refer | |
| 1910 to what it obviously should refer to, namely the Alt key on PC | |
| 1911 keyboards. Instead, it refers to the key labelled Alt on Sun | |
| 1912 keyboards, and to no key at all on PC keyboards. | |
| 1913 | |
| 1914 `super': The Super key. Most keyboards don't have any such key, but | |
| 1915 under X Windows using `xmodmap' you can assign any key (such as | |
| 1916 an underused right-shift, right-control, or right-alt key) to | |
| 1917 this key modifier. No support currently exists under MS Windows | |
| 1918 for generating these modifiers. | |
| 1919 | |
| 1920 `hyper': The Hyper key. Works just like the Super key. | |
| 1921 | |
| 1922 `button1': The mouse buttons. This means that the specified button was held | |
| 1923 `button2': down at the time the event occurred. NOTE: For button-press | |
| 1924 `button3': events, the button that was just pressed down does NOT appear in | |
| 1925 `button4': the modifiers. | |
| 1926 `button5': | |
| 1927 | |
| 1928 Button modifiers are currently ignored when defining and looking up key and | |
| 1929 mouse strokes in keymaps. This could be changed, which would allow a user to | |
| 1930 create button-chord actions, use a button as a key modifier and do other | |
| 1931 clever things. | |
| 428 | 1932 */ |
| 1933 (event)) | |
| 1934 { | |
| 1935 int mod = XINT (Fevent_modifier_bits (event)); | |
| 1936 Lisp_Object result = Qnil; | |
| 442 | 1937 struct gcpro gcpro1; |
| 1938 | |
| 1939 GCPRO1 (result); | |
| 1940 if (mod & XEMACS_MOD_SHIFT) result = Fcons (Qshift, result); | |
| 1941 if (mod & XEMACS_MOD_ALT) result = Fcons (Qalt, result); | |
| 1942 if (mod & XEMACS_MOD_HYPER) result = Fcons (Qhyper, result); | |
| 1943 if (mod & XEMACS_MOD_SUPER) result = Fcons (Qsuper, result); | |
| 1944 if (mod & XEMACS_MOD_META) result = Fcons (Qmeta, result); | |
| 1945 if (mod & XEMACS_MOD_CONTROL) result = Fcons (Qcontrol, result); | |
| 1946 if (mod & XEMACS_MOD_BUTTON1) result = Fcons (Qbutton1, result); | |
| 1947 if (mod & XEMACS_MOD_BUTTON2) result = Fcons (Qbutton2, result); | |
| 1948 if (mod & XEMACS_MOD_BUTTON3) result = Fcons (Qbutton3, result); | |
| 1949 if (mod & XEMACS_MOD_BUTTON4) result = Fcons (Qbutton4, result); | |
| 1950 if (mod & XEMACS_MOD_BUTTON5) result = Fcons (Qbutton5, result); | |
| 1951 RETURN_UNGCPRO (Fnreverse (result)); | |
| 428 | 1952 } |
| 1953 | |
| 1954 static int | |
| 1955 event_x_y_pixel_internal (Lisp_Object event, int *x, int *y, int relative) | |
| 1956 { | |
| 1957 struct window *w; | |
| 1958 struct frame *f; | |
| 1959 | |
| 934 | 1960 if (XEVENT_TYPE (event) == pointer_motion_event) |
| 1961 { | |
| 1204 | 1962 *x = XEVENT_MOTION_X (event); |
| 1963 *y = XEVENT_MOTION_Y (event); | |
| 934 | 1964 } |
| 1965 else if (XEVENT_TYPE (event) == button_press_event || | |
| 1966 XEVENT_TYPE (event) == button_release_event) | |
| 1967 { | |
| 1204 | 1968 *x = XEVENT_BUTTON_X (event); |
| 1969 *y = XEVENT_BUTTON_Y (event); | |
| 934 | 1970 } |
| 1971 else if (XEVENT_TYPE (event) == misc_user_event) | |
| 1972 { | |
| 1204 | 1973 *x = XEVENT_MISC_USER_X (event); |
| 1974 *y = XEVENT_MISC_USER_Y (event); | |
| 934 | 1975 } |
| 1976 else | |
| 1977 return 0; | |
| 428 | 1978 f = XFRAME (EVENT_CHANNEL (XEVENT (event))); |
| 1979 | |
| 1980 if (relative) | |
| 1981 { | |
| 1982 w = find_window_by_pixel_pos (*x, *y, f->root_window); | |
| 1983 | |
| 1984 if (!w) | |
| 442 | 1985 return 1; /* #### What should really happen here? */ |
| 428 | 1986 |
| 1987 *x -= w->pixel_left; | |
| 1988 *y -= w->pixel_top; | |
| 1989 } | |
| 1990 else | |
| 1991 { | |
| 1992 *y -= FRAME_REAL_TOP_TOOLBAR_HEIGHT (f) - | |
| 1993 FRAME_REAL_TOP_TOOLBAR_BORDER_WIDTH (f); | |
| 1994 *x -= FRAME_REAL_LEFT_TOOLBAR_WIDTH (f) - | |
| 1995 FRAME_REAL_LEFT_TOOLBAR_BORDER_WIDTH (f); | |
| 1996 } | |
| 1997 | |
| 1998 return 1; | |
| 1999 } | |
| 2000 | |
| 2001 DEFUN ("event-window-x-pixel", Fevent_window_x_pixel, 1, 1, 0, /* | |
| 2002 Return the X position in pixels of mouse event EVENT. | |
| 2003 The value returned is relative to the window the event occurred in. | |
| 2004 This will signal an error if the event is not a mouse event. | |
| 2005 See also `mouse-event-p' and `event-x-pixel'. | |
| 2006 */ | |
| 2007 (event)) | |
| 2008 { | |
| 2009 int x, y; | |
| 2010 | |
| 2011 CHECK_LIVE_EVENT (event); | |
| 2012 | |
| 2013 if (!event_x_y_pixel_internal (event, &x, &y, 1)) | |
| 2014 return wrong_type_argument (Qmouse_event_p, event); | |
| 2015 else | |
| 2016 return make_int (x); | |
| 2017 } | |
| 2018 | |
| 2019 DEFUN ("event-window-y-pixel", Fevent_window_y_pixel, 1, 1, 0, /* | |
| 2020 Return the Y position in pixels of mouse event EVENT. | |
| 2021 The value returned is relative to the window the event occurred in. | |
| 2022 This will signal an error if the event is not a mouse event. | |
| 2023 See also `mouse-event-p' and `event-y-pixel'. | |
| 2024 */ | |
| 2025 (event)) | |
| 2026 { | |
| 2027 int x, y; | |
| 2028 | |
| 2029 CHECK_LIVE_EVENT (event); | |
| 2030 | |
| 2031 if (!event_x_y_pixel_internal (event, &x, &y, 1)) | |
| 2032 return wrong_type_argument (Qmouse_event_p, event); | |
| 2033 else | |
| 2034 return make_int (y); | |
| 2035 } | |
| 2036 | |
| 2037 DEFUN ("event-x-pixel", Fevent_x_pixel, 1, 1, 0, /* | |
| 2038 Return the X position in pixels of mouse event EVENT. | |
| 2039 The value returned is relative to the frame the event occurred in. | |
| 2040 This will signal an error if the event is not a mouse event. | |
| 2041 See also `mouse-event-p' and `event-window-x-pixel'. | |
| 2042 */ | |
| 2043 (event)) | |
| 2044 { | |
| 2045 int x, y; | |
| 2046 | |
| 2047 CHECK_LIVE_EVENT (event); | |
| 2048 | |
| 2049 if (!event_x_y_pixel_internal (event, &x, &y, 0)) | |
| 2050 return wrong_type_argument (Qmouse_event_p, event); | |
| 2051 else | |
| 2052 return make_int (x); | |
| 2053 } | |
| 2054 | |
| 2055 DEFUN ("event-y-pixel", Fevent_y_pixel, 1, 1, 0, /* | |
| 2056 Return the Y position in pixels of mouse event EVENT. | |
| 2057 The value returned is relative to the frame the event occurred in. | |
| 2058 This will signal an error if the event is not a mouse event. | |
| 2059 See also `mouse-event-p' `event-window-y-pixel'. | |
| 2060 */ | |
| 2061 (event)) | |
| 2062 { | |
| 2063 int x, y; | |
| 2064 | |
| 2065 CHECK_LIVE_EVENT (event); | |
| 2066 | |
| 2067 if (!event_x_y_pixel_internal (event, &x, &y, 0)) | |
| 2068 return wrong_type_argument (Qmouse_event_p, event); | |
| 2069 else | |
| 2070 return make_int (y); | |
| 2071 } | |
| 2072 | |
| 2073 /* Given an event, return a value: | |
| 2074 | |
| 2075 OVER_TOOLBAR: over one of the 4 frame toolbars | |
| 2076 OVER_MODELINE: over a modeline | |
| 2077 OVER_BORDER: over an internal border | |
| 2078 OVER_NOTHING: over the text area, but not over text | |
| 2079 OVER_OUTSIDE: outside of the frame border | |
| 2080 OVER_TEXT: over text in the text area | |
| 2081 OVER_V_DIVIDER: over windows vertical divider | |
| 2082 | |
| 2083 and return: | |
| 2084 | |
| 2085 The X char position in CHAR_X, if not a null pointer. | |
| 2086 The Y char position in CHAR_Y, if not a null pointer. | |
| 2087 (These last two values are relative to the window the event is over.) | |
| 2088 The window it's over in W, if not a null pointer. | |
| 2089 The buffer position it's over in BUFP, if not a null pointer. | |
| 2090 The closest buffer position in CLOSEST, if not a null pointer. | |
| 2091 | |
| 2092 OBJ_X, OBJ_Y, OBJ1, and OBJ2 are as in pixel_to_glyph_translation(). | |
| 2093 */ | |
| 2094 | |
| 2095 static int | |
| 2096 event_pixel_translation (Lisp_Object event, int *char_x, int *char_y, | |
| 2097 int *obj_x, int *obj_y, | |
| 665 | 2098 struct window **w, Charbpos *bufp, Charbpos *closest, |
| 428 | 2099 Charcount *modeline_closest, |
| 2100 Lisp_Object *obj1, Lisp_Object *obj2) | |
| 2101 { | |
| 2102 int pix_x = 0; | |
| 2103 int pix_y = 0; | |
| 2104 int result; | |
| 2105 Lisp_Object frame; | |
| 2106 | |
| 2107 int ret_x, ret_y, ret_obj_x, ret_obj_y; | |
| 2108 struct window *ret_w; | |
| 665 | 2109 Charbpos ret_bufp, ret_closest; |
| 428 | 2110 Charcount ret_modeline_closest; |
| 2111 Lisp_Object ret_obj1, ret_obj2; | |
| 2112 | |
| 2113 CHECK_LIVE_EVENT (event); | |
| 934 | 2114 frame = XEVENT_CHANNEL (event); |
| 2115 switch (XEVENT_TYPE (event)) | |
| 2116 { | |
| 2117 case pointer_motion_event : | |
| 1204 | 2118 pix_x = XEVENT_MOTION_X (event); |
| 2119 pix_y = XEVENT_MOTION_Y (event); | |
| 934 | 2120 break; |
| 2121 case button_press_event : | |
| 2122 case button_release_event : | |
| 1204 | 2123 pix_x = XEVENT_BUTTON_X (event); |
| 2124 pix_y = XEVENT_BUTTON_Y (event); | |
| 934 | 2125 break; |
| 2126 case misc_user_event : | |
| 1204 | 2127 pix_x = XEVENT_MISC_USER_X (event); |
| 2128 pix_y = XEVENT_MISC_USER_Y (event); | |
| 934 | 2129 break; |
| 2130 default: | |
| 2131 dead_wrong_type_argument (Qmouse_event_p, event); | |
| 2132 } | |
| 428 | 2133 |
| 2134 result = pixel_to_glyph_translation (XFRAME (frame), pix_x, pix_y, | |
| 2135 &ret_x, &ret_y, &ret_obj_x, &ret_obj_y, | |
| 2136 &ret_w, &ret_bufp, &ret_closest, | |
| 2137 &ret_modeline_closest, | |
| 2138 &ret_obj1, &ret_obj2); | |
| 2139 | |
| 2140 if (result == OVER_NOTHING || result == OVER_OUTSIDE) | |
| 2141 ret_bufp = 0; | |
| 2142 else if (ret_w && NILP (ret_w->buffer)) | |
| 2143 /* Why does this happen? (Does it still happen?) | |
| 2144 I guess the window has gotten reused as a non-leaf... */ | |
| 2145 ret_w = 0; | |
| 2146 | |
| 2147 /* #### pixel_to_glyph_translation() sometimes returns garbage... | |
| 2148 The word has type Lisp_Type_Record (presumably meaning `extent') but the | |
| 2149 pointer points to random memory, often filled with 0, sometimes not. | |
| 2150 */ | |
| 2151 /* #### Chuck, do we still need this crap? */ | |
| 2152 if (!NILP (ret_obj1) && !(GLYPHP (ret_obj1) | |
| 2153 #ifdef HAVE_TOOLBARS | |
| 2154 || TOOLBAR_BUTTONP (ret_obj1) | |
| 2155 #endif | |
| 2156 )) | |
| 2500 | 2157 ABORT (); |
| 428 | 2158 if (!NILP (ret_obj2) && !(EXTENTP (ret_obj2) || CONSP (ret_obj2))) |
| 2500 | 2159 ABORT (); |
| 428 | 2160 |
| 2161 if (char_x) | |
| 2162 *char_x = ret_x; | |
| 2163 if (char_y) | |
| 2164 *char_y = ret_y; | |
| 2165 if (obj_x) | |
| 2166 *obj_x = ret_obj_x; | |
| 2167 if (obj_y) | |
| 2168 *obj_y = ret_obj_y; | |
| 2169 if (w) | |
| 2170 *w = ret_w; | |
| 2171 if (bufp) | |
| 2172 *bufp = ret_bufp; | |
| 2173 if (closest) | |
| 2174 *closest = ret_closest; | |
| 2175 if (modeline_closest) | |
| 2176 *modeline_closest = ret_modeline_closest; | |
| 2177 if (obj1) | |
| 2178 *obj1 = ret_obj1; | |
| 2179 if (obj2) | |
| 2180 *obj2 = ret_obj2; | |
| 2181 | |
| 2182 return result; | |
| 2183 } | |
| 2184 | |
| 2185 DEFUN ("event-over-text-area-p", Fevent_over_text_area_p, 1, 1, 0, /* | |
| 2186 Return t if the mouse event EVENT occurred over the text area of a window. | |
| 2187 The modeline is not considered to be part of the text area. | |
| 2188 */ | |
| 2189 (event)) | |
| 2190 { | |
| 2191 int result = event_pixel_translation (event, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0); | |
| 2192 | |
| 2193 return result == OVER_TEXT || result == OVER_NOTHING ? Qt : Qnil; | |
| 2194 } | |
| 2195 | |
| 2196 DEFUN ("event-over-modeline-p", Fevent_over_modeline_p, 1, 1, 0, /* | |
| 2197 Return t if the mouse event EVENT occurred over the modeline of a window. | |
| 2198 */ | |
| 2199 (event)) | |
| 2200 { | |
| 2201 int result = event_pixel_translation (event, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0); | |
| 2202 | |
| 2203 return result == OVER_MODELINE ? Qt : Qnil; | |
| 2204 } | |
| 2205 | |
| 2206 DEFUN ("event-over-border-p", Fevent_over_border_p, 1, 1, 0, /* | |
| 2207 Return t if the mouse event EVENT occurred over an internal border. | |
| 2208 */ | |
| 2209 (event)) | |
| 2210 { | |
| 2211 int result = event_pixel_translation (event, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0); | |
| 2212 | |
| 2213 return result == OVER_BORDER ? Qt : Qnil; | |
| 2214 } | |
| 2215 | |
| 2216 DEFUN ("event-over-toolbar-p", Fevent_over_toolbar_p, 1, 1, 0, /* | |
| 2217 Return t if the mouse event EVENT occurred over a toolbar. | |
| 2218 */ | |
| 2219 (event)) | |
| 2220 { | |
| 2221 int result = event_pixel_translation (event, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0); | |
| 2222 | |
| 2223 return result == OVER_TOOLBAR ? Qt : Qnil; | |
| 2224 } | |
| 2225 | |
| 2226 DEFUN ("event-over-vertical-divider-p", Fevent_over_vertical_divider_p, 1, 1, 0, /* | |
| 2227 Return t if the mouse event EVENT occurred over a window divider. | |
| 2228 */ | |
| 2229 (event)) | |
| 2230 { | |
| 2231 int result = event_pixel_translation (event, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0); | |
| 2232 | |
| 2233 return result == OVER_V_DIVIDER ? Qt : Qnil; | |
| 2234 } | |
| 2235 | |
| 2236 struct console * | |
| 2237 event_console_or_selected (Lisp_Object event) | |
| 2238 { | |
| 2239 Lisp_Object channel = EVENT_CHANNEL (XEVENT (event)); | |
| 2240 Lisp_Object console = CDFW_CONSOLE (channel); | |
| 2241 | |
| 2242 if (NILP (console)) | |
| 2243 console = Vselected_console; | |
| 2244 | |
| 2245 return XCONSOLE (console); | |
| 2246 } | |
| 2247 | |
| 2248 DEFUN ("event-channel", Fevent_channel, 1, 1, 0, /* | |
| 2249 Return the channel that the event EVENT occurred on. | |
| 2250 This will be a frame, device, console, or nil for some types | |
| 2251 of events (e.g. eval events). | |
| 2252 */ | |
| 2253 (event)) | |
| 2254 { | |
| 2255 CHECK_LIVE_EVENT (event); | |
| 2256 return EVENT_CHANNEL (XEVENT (event)); | |
| 2257 } | |
| 2258 | |
| 2259 DEFUN ("event-window", Fevent_window, 1, 1, 0, /* | |
| 2260 Return the window over which mouse event EVENT occurred. | |
| 2261 This may be nil if the event occurred in the border or over a toolbar. | |
| 2262 The modeline is considered to be within the window it describes. | |
| 2263 */ | |
| 2264 (event)) | |
| 2265 { | |
| 2266 struct window *w; | |
| 2267 | |
| 2268 event_pixel_translation (event, 0, 0, 0, 0, &w, 0, 0, 0, 0, 0); | |
| 2269 | |
| 2270 if (!w) | |
| 2271 return Qnil; | |
| 2272 else | |
| 2273 { | |
| 793 | 2274 return wrap_window (w); |
| 428 | 2275 } |
| 2276 } | |
| 2277 | |
| 2278 DEFUN ("event-point", Fevent_point, 1, 1, 0, /* | |
| 2279 Return the character position of the mouse event EVENT. | |
| 2280 If the event did not occur over a window, or did not occur over text, | |
| 2281 then this returns nil. Otherwise, it returns a position in the buffer | |
| 2282 visible in the event's window. | |
| 2283 */ | |
| 2284 (event)) | |
| 2285 { | |
| 665 | 2286 Charbpos bufp; |
| 428 | 2287 struct window *w; |
| 2288 | |
| 2289 event_pixel_translation (event, 0, 0, 0, 0, &w, &bufp, 0, 0, 0, 0); | |
| 2290 | |
| 2291 return w && bufp ? make_int (bufp) : Qnil; | |
| 2292 } | |
| 2293 | |
| 2294 DEFUN ("event-closest-point", Fevent_closest_point, 1, 1, 0, /* | |
| 2295 Return the character position closest to the mouse event EVENT. | |
| 2296 If the event did not occur over a window or over text, return the | |
| 2297 closest point to the location of the event. If the Y pixel position | |
| 2298 overlaps a window and the X pixel position is to the left of that | |
| 2299 window, the closest point is the beginning of the line containing the | |
| 2300 Y position. If the Y pixel position overlaps a window and the X pixel | |
| 2301 position is to the right of that window, the closest point is the end | |
| 2302 of the line containing the Y position. If the Y pixel position is | |
| 2303 above a window, return 0. If it is below the last character in a window, | |
| 2304 return the value of (window-end). | |
| 2305 */ | |
| 2306 (event)) | |
| 2307 { | |
| 665 | 2308 Charbpos bufp; |
| 428 | 2309 |
| 2310 event_pixel_translation (event, 0, 0, 0, 0, 0, 0, &bufp, 0, 0, 0); | |
| 2311 | |
| 2312 return bufp ? make_int (bufp) : Qnil; | |
| 2313 } | |
| 2314 | |
| 2315 DEFUN ("event-x", Fevent_x, 1, 1, 0, /* | |
| 2316 Return the X position of the mouse event EVENT in characters. | |
| 2317 This is relative to the window the event occurred over. | |
| 2318 */ | |
| 2319 (event)) | |
| 2320 { | |
| 2321 int char_x; | |
| 2322 | |
| 2323 event_pixel_translation (event, &char_x, 0, 0, 0, 0, 0, 0, 0, 0, 0); | |
| 2324 | |
| 2325 return make_int (char_x); | |
| 2326 } | |
| 2327 | |
| 2328 DEFUN ("event-y", Fevent_y, 1, 1, 0, /* | |
| 2329 Return the Y position of the mouse event EVENT in characters. | |
| 2330 This is relative to the window the event occurred over. | |
| 2331 */ | |
| 2332 (event)) | |
| 2333 { | |
| 2334 int char_y; | |
| 2335 | |
| 2336 event_pixel_translation (event, 0, &char_y, 0, 0, 0, 0, 0, 0, 0, 0); | |
| 2337 | |
| 2338 return make_int (char_y); | |
| 2339 } | |
| 2340 | |
| 2341 DEFUN ("event-modeline-position", Fevent_modeline_position, 1, 1, 0, /* | |
| 2342 Return the character position in the modeline that EVENT occurred over. | |
| 2343 EVENT should be a mouse event. If EVENT did not occur over a modeline, | |
| 2344 nil is returned. You can determine the actual character that the | |
| 2345 event occurred over by looking in `generated-modeline-string' at the | |
| 2346 returned character position. Note that `generated-modeline-string' | |
| 2347 is buffer-local, and you must use EVENT's buffer when retrieving | |
| 2348 `generated-modeline-string' in order to get accurate results. | |
| 2349 */ | |
| 2350 (event)) | |
| 2351 { | |
| 2352 Charcount mbufp; | |
| 2353 int where; | |
| 2354 | |
| 2355 where = event_pixel_translation (event, 0, 0, 0, 0, 0, 0, 0, &mbufp, 0, 0); | |
| 2356 | |
| 2357 return (mbufp < 0 || where != OVER_MODELINE) ? Qnil : make_int (mbufp); | |
| 2358 } | |
| 2359 | |
| 2360 DEFUN ("event-glyph", Fevent_glyph, 1, 1, 0, /* | |
| 2361 Return the glyph that the mouse event EVENT occurred over, or nil. | |
| 2362 */ | |
| 2363 (event)) | |
| 2364 { | |
| 2365 Lisp_Object glyph; | |
| 2366 struct window *w; | |
| 2367 | |
| 2368 event_pixel_translation (event, 0, 0, 0, 0, &w, 0, 0, 0, &glyph, 0); | |
| 2369 | |
| 2370 return w && GLYPHP (glyph) ? glyph : Qnil; | |
| 2371 } | |
| 2372 | |
| 2373 DEFUN ("event-glyph-extent", Fevent_glyph_extent, 1, 1, 0, /* | |
| 2374 Return the extent of the glyph that the mouse event EVENT occurred over. | |
| 2375 If the event did not occur over a glyph, nil is returned. | |
| 2376 */ | |
| 2377 (event)) | |
| 2378 { | |
| 2379 Lisp_Object extent; | |
| 2380 struct window *w; | |
| 2381 | |
| 2382 event_pixel_translation (event, 0, 0, 0, 0, &w, 0, 0, 0, 0, &extent); | |
| 2383 | |
| 2384 return w && EXTENTP (extent) ? extent : Qnil; | |
| 2385 } | |
| 2386 | |
| 2387 DEFUN ("event-glyph-x-pixel", Fevent_glyph_x_pixel, 1, 1, 0, /* | |
| 2388 Return the X pixel position of EVENT relative to the glyph it occurred over. | |
| 2389 EVENT should be a mouse event. If the event did not occur over a glyph, | |
| 2390 nil is returned. | |
| 2391 */ | |
| 2392 (event)) | |
| 2393 { | |
| 2394 Lisp_Object extent; | |
| 2395 struct window *w; | |
| 2396 int obj_x; | |
| 2397 | |
| 2398 event_pixel_translation (event, 0, 0, &obj_x, 0, &w, 0, 0, 0, 0, &extent); | |
| 2399 | |
| 2400 return w && EXTENTP (extent) ? make_int (obj_x) : Qnil; | |
| 2401 } | |
| 2402 | |
| 2403 DEFUN ("event-glyph-y-pixel", Fevent_glyph_y_pixel, 1, 1, 0, /* | |
| 2404 Return the Y pixel position of EVENT relative to the glyph it occurred over. | |
| 2405 EVENT should be a mouse event. If the event did not occur over a glyph, | |
| 2406 nil is returned. | |
| 2407 */ | |
| 2408 (event)) | |
| 2409 { | |
| 2410 Lisp_Object extent; | |
| 2411 struct window *w; | |
| 2412 int obj_y; | |
| 2413 | |
| 2414 event_pixel_translation (event, 0, 0, 0, &obj_y, &w, 0, 0, 0, 0, &extent); | |
| 2415 | |
| 2416 return w && EXTENTP (extent) ? make_int (obj_y) : Qnil; | |
| 2417 } | |
| 2418 | |
| 2419 DEFUN ("event-toolbar-button", Fevent_toolbar_button, 1, 1, 0, /* | |
| 2420 Return the toolbar button that the mouse event EVENT occurred over. | |
| 2421 If the event did not occur over a toolbar button, nil is returned. | |
| 2422 */ | |
| 2340 | 2423 (USED_IF_TOOLBARS (event))) |
| 428 | 2424 { |
| 2425 #ifdef HAVE_TOOLBARS | |
| 2426 Lisp_Object button; | |
| 2427 | |
| 2428 int result = event_pixel_translation (event, 0, 0, 0, 0, 0, 0, 0, 0, &button, 0); | |
| 2429 | |
| 2430 return result == OVER_TOOLBAR && TOOLBAR_BUTTONP (button) ? button : Qnil; | |
| 2431 #else | |
| 2432 return Qnil; | |
| 2433 #endif | |
| 2434 } | |
| 2435 | |
| 2436 DEFUN ("event-process", Fevent_process, 1, 1, 0, /* | |
| 444 | 2437 Return the process of the process-output event EVENT. |
| 428 | 2438 */ |
| 2439 (event)) | |
| 2440 { | |
| 934 | 2441 CHECK_EVENT_TYPE (event, process_event, Qprocess_event_p); |
| 1204 | 2442 return XEVENT_PROCESS_PROCESS (event); |
| 428 | 2443 } |
| 2444 | |
| 2445 DEFUN ("event-function", Fevent_function, 1, 1, 0, /* | |
| 2446 Return the callback function of EVENT. | |
| 2447 EVENT should be a timeout, misc-user, or eval event. | |
| 2448 */ | |
| 2449 (event)) | |
| 2450 { | |
| 2451 again: | |
| 2452 CHECK_LIVE_EVENT (event); | |
| 934 | 2453 switch (XEVENT_TYPE (event)) |
| 2454 { | |
| 2455 case timeout_event: | |
| 1204 | 2456 return XEVENT_TIMEOUT_FUNCTION (event); |
| 934 | 2457 case misc_user_event: |
| 1204 | 2458 return XEVENT_MISC_USER_FUNCTION (event); |
| 934 | 2459 case eval_event: |
| 1204 | 2460 return XEVENT_EVAL_FUNCTION (event); |
| 934 | 2461 default: |
| 2462 event = wrong_type_argument (intern ("timeout-or-eval-event-p"), event); | |
| 2463 goto again; | |
| 2464 } | |
| 428 | 2465 } |
| 2466 | |
| 2467 DEFUN ("event-object", Fevent_object, 1, 1, 0, /* | |
| 2468 Return the callback function argument of EVENT. | |
| 2469 EVENT should be a timeout, misc-user, or eval event. | |
| 2470 */ | |
| 2471 (event)) | |
| 2472 { | |
| 2473 again: | |
| 2474 CHECK_LIVE_EVENT (event); | |
| 934 | 2475 switch (XEVENT_TYPE (event)) |
| 2476 { | |
| 2477 case timeout_event: | |
| 1204 | 2478 return XEVENT_TIMEOUT_OBJECT (event); |
| 934 | 2479 case misc_user_event: |
| 1204 | 2480 return XEVENT_MISC_USER_OBJECT (event); |
| 934 | 2481 case eval_event: |
| 1204 | 2482 return XEVENT_EVAL_OBJECT (event); |
| 934 | 2483 default: |
| 2484 event = wrong_type_argument (intern ("timeout-or-eval-event-p"), event); | |
| 2485 goto again; | |
| 2486 } | |
| 428 | 2487 } |
| 2488 | |
| 2489 DEFUN ("event-properties", Fevent_properties, 1, 1, 0, /* | |
| 2490 Return a list of all of the properties of EVENT. | |
| 2491 This is in the form of a property list (alternating keyword/value pairs). | |
| 2492 */ | |
| 2493 (event)) | |
| 2494 { | |
| 2495 Lisp_Object props = Qnil; | |
| 440 | 2496 Lisp_Event *e; |
| 428 | 2497 struct gcpro gcpro1; |
| 2498 | |
| 2499 CHECK_LIVE_EVENT (event); | |
| 2500 e = XEVENT (event); | |
| 2501 GCPRO1 (props); | |
| 2502 | |
| 2503 props = cons3 (Qtimestamp, Fevent_timestamp (event), props); | |
| 2504 | |
| 934 | 2505 switch (EVENT_TYPE (e)) |
| 428 | 2506 { |
| 2500 | 2507 default: ABORT (); |
| 428 | 2508 |
| 2509 case process_event: | |
| 1204 | 2510 props = cons3 (Qprocess, EVENT_PROCESS_PROCESS (e), props); |
| 428 | 2511 break; |
| 2512 | |
| 2513 case timeout_event: | |
| 2514 props = cons3 (Qobject, Fevent_object (event), props); | |
| 2515 props = cons3 (Qfunction, Fevent_function (event), props); | |
| 1204 | 2516 props = cons3 (Qid, make_int (EVENT_TIMEOUT_ID_NUMBER (e)), props); |
| 428 | 2517 break; |
| 2518 | |
| 2519 case key_press_event: | |
| 2520 props = cons3 (Qmodifiers, Fevent_modifiers (event), props); | |
| 2521 props = cons3 (Qkey, Fevent_key (event), props); | |
| 2522 break; | |
| 2523 | |
| 2524 case button_press_event: | |
| 2525 case button_release_event: | |
| 2526 props = cons3 (Qy, Fevent_y_pixel (event), props); | |
| 2527 props = cons3 (Qx, Fevent_x_pixel (event), props); | |
| 2528 props = cons3 (Qmodifiers, Fevent_modifiers (event), props); | |
| 2529 props = cons3 (Qbutton, Fevent_button (event), props); | |
| 2530 break; | |
| 2531 | |
| 2532 case pointer_motion_event: | |
| 2533 props = cons3 (Qmodifiers, Fevent_modifiers (event), props); | |
| 2534 props = cons3 (Qy, Fevent_y_pixel (event), props); | |
| 2535 props = cons3 (Qx, Fevent_x_pixel (event), props); | |
| 2536 break; | |
| 2537 | |
| 2538 case misc_user_event: | |
| 2539 props = cons3 (Qobject, Fevent_object (event), props); | |
| 2540 props = cons3 (Qfunction, Fevent_function (event), props); | |
| 2541 props = cons3 (Qy, Fevent_y_pixel (event), props); | |
| 2542 props = cons3 (Qx, Fevent_x_pixel (event), props); | |
| 2543 props = cons3 (Qmodifiers, Fevent_modifiers (event), props); | |
| 2544 props = cons3 (Qbutton, Fevent_button (event), props); | |
| 2545 break; | |
| 2546 | |
| 2547 case eval_event: | |
| 2548 props = cons3 (Qobject, Fevent_object (event), props); | |
| 2549 props = cons3 (Qfunction, Fevent_function (event), props); | |
| 2550 break; | |
| 2551 | |
| 2552 case magic_eval_event: | |
| 2553 case magic_event: | |
| 2554 break; | |
| 2555 | |
| 2556 case empty_event: | |
| 2557 RETURN_UNGCPRO (Qnil); | |
| 2558 break; | |
| 2559 } | |
| 2560 | |
| 2561 props = cons3 (Qchannel, Fevent_channel (event), props); | |
| 2562 UNGCPRO; | |
| 2563 | |
| 2564 return props; | |
| 2565 } | |
| 2566 | |
| 2567 | |
| 2568 /************************************************************************/ | |
| 2569 /* initialization */ | |
| 2570 /************************************************************************/ | |
| 2571 | |
| 2572 void | |
| 2573 syms_of_events (void) | |
| 2574 { | |
| 442 | 2575 INIT_LRECORD_IMPLEMENTATION (event); |
| 1204 | 2576 #ifdef EVENT_DATA_AS_OBJECTS |
| 934 | 2577 INIT_LRECORD_IMPLEMENTATION (key_data); |
| 2578 INIT_LRECORD_IMPLEMENTATION (button_data); | |
| 2579 INIT_LRECORD_IMPLEMENTATION (motion_data); | |
| 2580 INIT_LRECORD_IMPLEMENTATION (process_data); | |
| 2581 INIT_LRECORD_IMPLEMENTATION (timeout_data); | |
| 2582 INIT_LRECORD_IMPLEMENTATION (eval_data); | |
| 2583 INIT_LRECORD_IMPLEMENTATION (misc_user_data); | |
| 2584 INIT_LRECORD_IMPLEMENTATION (magic_eval_data); | |
| 2585 INIT_LRECORD_IMPLEMENTATION (magic_data); | |
| 1204 | 2586 #endif /* EVENT_DATA_AS_OBJECTS */ |
| 442 | 2587 |
| 428 | 2588 DEFSUBR (Fcharacter_to_event); |
| 2589 DEFSUBR (Fevent_to_character); | |
| 2590 | |
| 2591 DEFSUBR (Fmake_event); | |
| 2592 DEFSUBR (Fdeallocate_event); | |
| 2593 DEFSUBR (Fcopy_event); | |
| 2594 DEFSUBR (Feventp); | |
| 2595 DEFSUBR (Fevent_live_p); | |
| 2596 DEFSUBR (Fevent_type); | |
| 2597 DEFSUBR (Fevent_properties); | |
| 2598 | |
| 2599 DEFSUBR (Fevent_timestamp); | |
| 442 | 2600 DEFSUBR (Fevent_timestamp_lessp); |
| 428 | 2601 DEFSUBR (Fevent_key); |
| 2602 DEFSUBR (Fevent_button); | |
| 2603 DEFSUBR (Fevent_modifier_bits); | |
| 2604 DEFSUBR (Fevent_modifiers); | |
| 2605 DEFSUBR (Fevent_x_pixel); | |
| 2606 DEFSUBR (Fevent_y_pixel); | |
| 2607 DEFSUBR (Fevent_window_x_pixel); | |
| 2608 DEFSUBR (Fevent_window_y_pixel); | |
| 2609 DEFSUBR (Fevent_over_text_area_p); | |
| 2610 DEFSUBR (Fevent_over_modeline_p); | |
| 2611 DEFSUBR (Fevent_over_border_p); | |
| 2612 DEFSUBR (Fevent_over_toolbar_p); | |
| 2613 DEFSUBR (Fevent_over_vertical_divider_p); | |
| 2614 DEFSUBR (Fevent_channel); | |
| 2615 DEFSUBR (Fevent_window); | |
| 2616 DEFSUBR (Fevent_point); | |
| 2617 DEFSUBR (Fevent_closest_point); | |
| 2618 DEFSUBR (Fevent_x); | |
| 2619 DEFSUBR (Fevent_y); | |
| 2620 DEFSUBR (Fevent_modeline_position); | |
| 2621 DEFSUBR (Fevent_glyph); | |
| 2622 DEFSUBR (Fevent_glyph_extent); | |
| 2623 DEFSUBR (Fevent_glyph_x_pixel); | |
| 2624 DEFSUBR (Fevent_glyph_y_pixel); | |
| 2625 DEFSUBR (Fevent_toolbar_button); | |
| 2626 DEFSUBR (Fevent_process); | |
| 2627 DEFSUBR (Fevent_function); | |
| 2628 DEFSUBR (Fevent_object); | |
| 2629 | |
| 563 | 2630 DEFSYMBOL (Qeventp); |
| 2631 DEFSYMBOL (Qevent_live_p); | |
| 2632 DEFSYMBOL (Qkey_press_event_p); | |
| 2633 DEFSYMBOL (Qbutton_event_p); | |
| 2634 DEFSYMBOL (Qmouse_event_p); | |
| 2635 DEFSYMBOL (Qprocess_event_p); | |
| 2636 DEFSYMBOL (Qkey_press); | |
| 2637 DEFSYMBOL (Qbutton_press); | |
| 2638 DEFSYMBOL (Qbutton_release); | |
| 2639 DEFSYMBOL (Qmisc_user); | |
| 2828 | 2640 DEFSYMBOL (Qcharacter_of_keysym); |
| 563 | 2641 DEFSYMBOL (Qascii_character); |
| 428 | 2642 |
| 2643 defsymbol (&QKbackspace, "backspace"); | |
| 2644 defsymbol (&QKtab, "tab"); | |
| 2645 defsymbol (&QKlinefeed, "linefeed"); | |
| 2646 defsymbol (&QKreturn, "return"); | |
| 2647 defsymbol (&QKescape, "escape"); | |
| 2648 defsymbol (&QKspace, "space"); | |
| 2649 defsymbol (&QKdelete, "delete"); | |
| 2650 } | |
| 2651 | |
| 2652 | |
| 2653 void | |
| 2654 reinit_vars_of_events (void) | |
| 2655 { | |
| 2656 Vevent_resource = Qnil; | |
| 3092 | 2657 #ifdef NEW_GC |
| 2658 staticpro (&Vevent_resource); | |
| 2659 #endif /* NEW_GC */ | |
| 428 | 2660 } |
| 2661 | |
| 2662 void | |
| 2663 vars_of_events (void) | |
| 2664 { | |
| 2665 } |