Mercurial > hg > xemacs-beta
annotate src/events.c @ 5118:e0db3c197671 ben-lisp-object
merge up to latest default branch, doesn't compile yet
| author | Ben Wing <ben@xemacs.org> |
|---|---|
| date | Sat, 26 Dec 2009 21:18:49 -0600 |
| parents | 3742ea8250b5 2fd201d73a92 |
| children | 623d57b7fbe8 |
| 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 | |
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227 DEFINE_NODUMP_BASIC_LISP_OBJECT ("key-data", key_data, |
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228 0, 0, 0, 0, 0, |
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229 key_data_description, |
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230 Lisp_Key_Data); |
| 1204 | 231 |
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232 DEFINE_NODUMP_BASIC_LISP_OBJECT ("button-data", button_data, |
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233 0, 0, 0, 0, 0, |
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234 button_data_description, |
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235 Lisp_Button_Data); |
| 1204 | 236 |
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237 DEFINE_NODUMP_BASIC_LISP_OBJECT ("motion-data", motion_data, |
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238 0, 0, 0, 0, 0, |
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239 motion_data_description, |
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240 Lisp_Motion_Data); |
| 1204 | 241 |
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242 DEFINE_NODUMP_BASIC_LISP_OBJECT ("process-data", process_data, |
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243 0, 0, 0, 0, 0, |
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244 process_data_description, |
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245 Lisp_Process_Data); |
| 1204 | 246 |
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247 DEFINE_NODUMP_BASIC_LISP_OBJECT ("timeout-data", timeout_data, |
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248 0, 0, 0, 0, 0, |
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249 timeout_data_description, |
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250 Lisp_Timeout_Data); |
| 1204 | 251 |
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252 DEFINE_NODUMP_BASIC_LISP_OBJECT ("eval-data", eval_data, |
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253 0, 0, 0, 0, 0, |
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254 eval_data_description, |
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255 Lisp_Eval_Data); |
| 1204 | 256 |
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257 DEFINE_NODUMP_BASIC_LISP_OBJECT ("misc-user-data", misc_user_data, |
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258 0, 0, 0, 0, 0, |
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259 misc_user_data_description, |
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260 Lisp_Misc_User_Data); |
| 1204 | 261 |
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262 DEFINE_NODUMP_BASIC_LISP_OBJECT ("magic-eval-data", magic_eval_data, |
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263 0, 0, 0, 0, 0, |
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264 magic_eval_data_description, |
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265 Lisp_Magic_Eval_Data); |
| 1204 | 266 |
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267 DEFINE_NODUMP_BASIC_LISP_OBJECT ("magic-data", magic_data, |
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268 0, 0, 0, 0, 0, |
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269 magic_data_description, |
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270 Lisp_Magic_Data); |
| 1204 | 271 |
| 272 #endif /* EVENT_DATA_AS_OBJECTS */ | |
| 273 | |
| 428 | 274 static Lisp_Object |
| 275 mark_event (Lisp_Object obj) | |
| 276 { | |
| 440 | 277 Lisp_Event *event = XEVENT (obj); |
| 428 | 278 |
| 279 switch (event->event_type) | |
| 280 { | |
| 281 case key_press_event: | |
| 1204 | 282 mark_object (EVENT_KEY_KEYSYM (event)); |
| 428 | 283 break; |
| 284 case process_event: | |
| 1204 | 285 mark_object (EVENT_PROCESS_PROCESS (event)); |
| 428 | 286 break; |
| 287 case timeout_event: | |
| 1204 | 288 mark_object (EVENT_TIMEOUT_FUNCTION (event)); |
| 289 mark_object (EVENT_TIMEOUT_OBJECT (event)); | |
| 428 | 290 break; |
| 291 case eval_event: | |
| 292 case misc_user_event: | |
| 1204 | 293 mark_object (EVENT_EVAL_FUNCTION (event)); |
| 294 mark_object (EVENT_EVAL_OBJECT (event)); | |
| 428 | 295 break; |
| 296 case magic_eval_event: | |
| 1204 | 297 mark_object (EVENT_MAGIC_EVAL_OBJECT (event)); |
| 428 | 298 break; |
| 299 case button_press_event: | |
| 300 case button_release_event: | |
| 301 case pointer_motion_event: | |
| 302 case magic_event: | |
| 303 case empty_event: | |
| 304 case dead_event: | |
| 305 break; | |
| 306 default: | |
| 2500 | 307 ABORT (); |
| 428 | 308 } |
| 309 mark_object (event->channel); | |
| 310 return event->next; | |
| 311 } | |
| 312 | |
| 313 static void | |
| 442 | 314 print_event_1 (const char *str, Lisp_Object obj, Lisp_Object printcharfun) |
| 428 | 315 { |
| 793 | 316 DECLARE_EISTRING_MALLOC (ei); |
| 826 | 317 write_c_string (printcharfun, str); |
| 1204 | 318 format_event_object (ei, obj, 0); |
| 826 | 319 write_eistring (printcharfun, ei); |
| 793 | 320 eifree (ei); |
| 428 | 321 } |
| 322 | |
| 323 static void | |
| 2286 | 324 print_event (Lisp_Object obj, Lisp_Object printcharfun, |
| 325 int UNUSED (escapeflag)) | |
| 428 | 326 { |
| 327 if (print_readably) | |
| 563 | 328 printing_unreadable_object ("#<event>"); |
| 428 | 329 |
| 330 switch (XEVENT (obj)->event_type) | |
| 331 { | |
| 332 case key_press_event: | |
| 333 print_event_1 ("#<keypress-event ", obj, printcharfun); | |
| 334 break; | |
| 335 case button_press_event: | |
| 336 print_event_1 ("#<buttondown-event ", obj, printcharfun); | |
| 337 break; | |
| 338 case button_release_event: | |
| 339 print_event_1 ("#<buttonup-event ", obj, printcharfun); | |
| 340 break; | |
| 341 case magic_event: | |
| 342 case magic_eval_event: | |
| 343 print_event_1 ("#<magic-event ", obj, printcharfun); | |
| 344 break; | |
| 345 case pointer_motion_event: | |
| 346 { | |
| 347 Lisp_Object Vx, Vy; | |
| 348 Vx = Fevent_x_pixel (obj); | |
| 349 assert (INTP (Vx)); | |
| 350 Vy = Fevent_y_pixel (obj); | |
| 351 assert (INTP (Vy)); | |
| 793 | 352 write_fmt_string (printcharfun, "#<motion-event %ld, %ld", |
| 353 (long) XINT (Vx), (long) XINT (Vy)); | |
| 428 | 354 break; |
| 355 } | |
| 356 case process_event: | |
| 1204 | 357 write_fmt_string_lisp (printcharfun, "#<process-event %S", 1, |
| 358 XEVENT_PROCESS_PROCESS (obj)); | |
| 428 | 359 break; |
| 360 case timeout_event: | |
| 1204 | 361 write_fmt_string_lisp (printcharfun, "#<timeout-event %S", 1, |
| 362 XEVENT_TIMEOUT_OBJECT (obj)); | |
| 428 | 363 break; |
| 364 case empty_event: | |
| 826 | 365 write_c_string (printcharfun, "#<empty-event"); |
| 428 | 366 break; |
| 367 case misc_user_event: | |
| 1204 | 368 write_fmt_string_lisp (printcharfun, "#<misc-user-event (%S", 1, |
| 369 XEVENT_MISC_USER_FUNCTION (obj)); | |
| 370 write_fmt_string_lisp (printcharfun, " %S)", 1, | |
| 371 XEVENT_MISC_USER_OBJECT (obj)); | |
| 428 | 372 break; |
| 373 case eval_event: | |
| 1204 | 374 write_fmt_string_lisp (printcharfun, "#<eval-event (%S", 1, |
| 375 XEVENT_EVAL_FUNCTION (obj)); | |
| 376 write_fmt_string_lisp (printcharfun, " %S)", 1, | |
| 377 XEVENT_EVAL_OBJECT (obj)); | |
| 428 | 378 break; |
| 379 case dead_event: | |
| 826 | 380 write_c_string (printcharfun, "#<DEALLOCATED-EVENT"); |
| 428 | 381 break; |
| 382 default: | |
| 826 | 383 write_c_string (printcharfun, "#<UNKNOWN-EVENT-TYPE"); |
| 428 | 384 break; |
| 385 } | |
| 826 | 386 write_c_string (printcharfun, ">"); |
| 428 | 387 } |
| 388 | |
| 389 static int | |
| 2286 | 390 event_equal (Lisp_Object obj1, Lisp_Object obj2, int UNUSED (depth)) |
| 428 | 391 { |
| 440 | 392 Lisp_Event *e1 = XEVENT (obj1); |
| 393 Lisp_Event *e2 = XEVENT (obj2); | |
| 428 | 394 |
| 395 if (e1->event_type != e2->event_type) return 0; | |
| 396 if (!EQ (e1->channel, e2->channel)) return 0; | |
| 397 /* if (e1->timestamp != e2->timestamp) return 0; */ | |
| 398 switch (e1->event_type) | |
| 399 { | |
| 2500 | 400 default: ABORT (); |
| 428 | 401 |
| 402 case process_event: | |
| 1204 | 403 return EQ (EVENT_PROCESS_PROCESS (e1), EVENT_PROCESS_PROCESS (e2)); |
| 428 | 404 |
| 405 case timeout_event: | |
| 1204 | 406 return (internal_equal (EVENT_TIMEOUT_FUNCTION (e1), |
| 407 EVENT_TIMEOUT_FUNCTION (e2), 0) && | |
| 408 internal_equal (EVENT_TIMEOUT_OBJECT (e1), | |
| 409 EVENT_TIMEOUT_OBJECT (e2), 0)); | |
| 428 | 410 |
| 411 case key_press_event: | |
| 1204 | 412 return (EQ (EVENT_KEY_KEYSYM (e1), EVENT_KEY_KEYSYM (e2)) && |
| 413 (EVENT_KEY_MODIFIERS (e1) == EVENT_KEY_MODIFIERS (e2))); | |
| 428 | 414 |
| 415 case button_press_event: | |
| 416 case button_release_event: | |
| 1204 | 417 return (EVENT_BUTTON_BUTTON (e1) == EVENT_BUTTON_BUTTON (e2) && |
| 418 EVENT_BUTTON_MODIFIERS (e1) == EVENT_BUTTON_MODIFIERS (e2)); | |
| 428 | 419 |
| 420 case pointer_motion_event: | |
| 1204 | 421 return (EVENT_MOTION_X (e1) == EVENT_MOTION_X (e2) && |
| 422 EVENT_MOTION_Y (e1) == EVENT_MOTION_Y (e2)); | |
| 428 | 423 |
| 424 case misc_user_event: | |
| 1204 | 425 return (internal_equal (EVENT_EVAL_FUNCTION (e1), |
| 426 EVENT_EVAL_FUNCTION (e2), 0) && | |
| 427 internal_equal (EVENT_EVAL_OBJECT (e1), | |
| 428 EVENT_EVAL_OBJECT (e2), 0) && | |
| 429 /* #### is this really needed for equality | |
| 428 | 430 or is x and y also important? */ |
| 1204 | 431 EVENT_MISC_USER_BUTTON (e1) == EVENT_MISC_USER_BUTTON (e2) && |
| 432 EVENT_MISC_USER_MODIFIERS (e1) == EVENT_MISC_USER_MODIFIERS (e2)); | |
| 428 | 433 |
| 434 case eval_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)); | |
| 428 | 439 |
| 440 case magic_eval_event: | |
| 1204 | 441 return (EVENT_MAGIC_EVAL_INTERNAL_FUNCTION (e1) == |
| 442 EVENT_MAGIC_EVAL_INTERNAL_FUNCTION (e2) && | |
| 443 internal_equal (EVENT_MAGIC_EVAL_OBJECT (e1), | |
| 444 EVENT_MAGIC_EVAL_OBJECT (e2), 0)); | |
| 428 | 445 |
| 446 case magic_event: | |
| 788 | 447 return event_stream_compare_magic_event (e1, e2); |
| 428 | 448 |
| 449 case empty_event: /* Empty and deallocated events are equal. */ | |
| 450 case dead_event: | |
| 451 return 1; | |
| 452 } | |
| 453 } | |
| 454 | |
| 665 | 455 static Hashcode |
| 428 | 456 event_hash (Lisp_Object obj, int depth) |
| 457 { | |
| 440 | 458 Lisp_Event *e = XEVENT (obj); |
| 665 | 459 Hashcode hash; |
| 428 | 460 |
| 461 hash = HASH2 (e->event_type, LISP_HASH (e->channel)); | |
| 462 switch (e->event_type) | |
| 463 { | |
| 464 case process_event: | |
| 1204 | 465 return HASH2 (hash, LISP_HASH (EVENT_PROCESS_PROCESS (e))); |
| 428 | 466 |
| 467 case timeout_event: | |
| 1204 | 468 return HASH3 (hash, |
| 469 internal_hash (EVENT_TIMEOUT_FUNCTION (e), depth + 1), | |
| 470 internal_hash (EVENT_TIMEOUT_OBJECT (e), depth + 1)); | |
| 428 | 471 |
| 472 case key_press_event: | |
| 1204 | 473 return HASH3 (hash, LISP_HASH (EVENT_KEY_KEYSYM (e)), |
| 474 EVENT_KEY_MODIFIERS (e)); | |
| 428 | 475 |
| 476 case button_press_event: | |
| 477 case button_release_event: | |
| 1204 | 478 return HASH3 (hash, EVENT_BUTTON_BUTTON (e), EVENT_BUTTON_MODIFIERS (e)); |
| 428 | 479 |
| 480 case pointer_motion_event: | |
| 1204 | 481 return HASH3 (hash, EVENT_MOTION_X (e), EVENT_MOTION_Y (e)); |
| 428 | 482 |
| 483 case misc_user_event: | |
| 1204 | 484 return HASH5 (hash, |
| 485 internal_hash (EVENT_MISC_USER_FUNCTION (e), depth + 1), | |
| 486 internal_hash (EVENT_MISC_USER_OBJECT (e), depth + 1), | |
| 487 EVENT_MISC_USER_BUTTON (e), EVENT_MISC_USER_MODIFIERS (e)); | |
| 428 | 488 |
| 489 case eval_event: | |
| 1204 | 490 return HASH3 (hash, internal_hash (EVENT_EVAL_FUNCTION (e), depth + 1), |
| 491 internal_hash (EVENT_EVAL_OBJECT (e), depth + 1)); | |
| 428 | 492 |
| 493 case magic_eval_event: | |
| 494 return HASH3 (hash, | |
| 1204 | 495 (Hashcode) EVENT_MAGIC_EVAL_INTERNAL_FUNCTION (e), |
| 496 internal_hash (EVENT_MAGIC_EVAL_OBJECT (e), depth + 1)); | |
| 428 | 497 |
| 498 case magic_event: | |
| 788 | 499 return HASH2 (hash, event_stream_hash_magic_event (e)); |
| 428 | 500 |
| 501 case empty_event: | |
| 502 case dead_event: | |
| 503 return hash; | |
| 504 | |
| 505 default: | |
| 2500 | 506 ABORT (); |
| 428 | 507 } |
| 508 | |
| 509 return 0; /* unreached */ | |
| 510 } | |
| 934 | 511 |
|
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512 DEFINE_NODUMP_FROB_BLOCK_LISP_OBJECT ("event", event, |
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513 mark_event, print_event, 0, |
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514 event_equal, event_hash, |
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515 event_description, |
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516 Lisp_Event); |
| 428 | 517 |
| 518 DEFUN ("make-event", Fmake_event, 0, 2, 0, /* | |
| 519 Return a new event of type TYPE, with properties described by PLIST. | |
| 520 | |
| 521 TYPE is a symbol, either `empty', `key-press', `button-press', | |
| 522 `button-release', `misc-user' or `motion'. If TYPE is nil, it | |
| 523 defaults to `empty'. | |
| 524 | |
| 525 PLIST is a property list, the properties being compatible to those | |
| 526 returned by `event-properties'. The following properties are | |
| 527 allowed: | |
| 528 | |
| 529 channel -- The event channel, a frame or a console. For | |
| 530 button-press, button-release, misc-user and motion events, | |
| 531 this must be a frame. For key-press events, it must be | |
| 532 a console. If channel is unspecified, it will be set to | |
| 533 the selected frame or selected console, as appropriate. | |
| 534 key -- The event key, a symbol or character. Allowed only for | |
| 535 keypress events. | |
| 536 button -- The event button, integer 1, 2 or 3. Allowed for | |
| 537 button-press, button-release and misc-user events. | |
| 538 modifiers -- The event modifiers, a list of modifier symbols. Allowed | |
| 539 for key-press, button-press, button-release, motion and | |
| 540 misc-user events. | |
| 541 function -- Function. Allowed for misc-user events only. | |
| 542 object -- An object, function's parameter. Allowed for misc-user | |
| 543 events only. | |
| 544 x -- The event X coordinate, an integer. This is relative | |
| 545 to the left of CHANNEL's root window. Allowed for | |
| 546 motion, button-press, button-release and misc-user events. | |
| 547 y -- The event Y coordinate, an integer. This is relative | |
| 548 to the top of CHANNEL's root window. Allowed for | |
| 549 motion, button-press, button-release and misc-user events. | |
| 550 timestamp -- The event timestamp, a non-negative integer. Allowed for | |
| 551 all types of events. If unspecified, it will be set to 0 | |
| 552 by default. | |
| 553 | |
| 554 For event type `empty', PLIST must be nil. | |
| 555 `button-release', or `motion'. If TYPE is left out, it defaults to | |
| 556 `empty'. | |
| 557 PLIST is a list of properties, as returned by `event-properties'. Not | |
| 558 all properties are allowed for all kinds of events, and some are | |
| 559 required. | |
| 560 | |
| 561 WARNING: the event object returned may be a reused one; see the function | |
| 562 `deallocate-event'. | |
| 563 */ | |
| 564 (type, plist)) | |
| 565 { | |
| 566 Lisp_Object event = Qnil; | |
| 440 | 567 Lisp_Event *e; |
| 428 | 568 EMACS_INT coord_x = 0, coord_y = 0; |
| 569 struct gcpro gcpro1; | |
| 570 | |
| 571 GCPRO1 (event); | |
| 572 | |
| 573 if (NILP (type)) | |
| 574 type = Qempty; | |
| 575 | |
| 576 if (!NILP (Vevent_resource)) | |
| 577 { | |
| 578 event = Vevent_resource; | |
| 579 Vevent_resource = XEVENT_NEXT (event); | |
| 580 } | |
| 581 else | |
| 582 { | |
| 583 event = allocate_event (); | |
| 584 } | |
| 585 e = XEVENT (event); | |
| 586 zero_event (e); | |
| 587 | |
| 588 if (EQ (type, Qempty)) | |
| 589 { | |
| 590 /* For empty event, we return immediately, without processing | |
| 591 PLIST. In fact, processing PLIST would be wrong, because the | |
| 592 sanitizing process would fill in the properties | |
| 593 (e.g. CHANNEL), which we don't want in empty events. */ | |
| 934 | 594 set_event_type (e, empty_event); |
| 428 | 595 if (!NILP (plist)) |
| 563 | 596 invalid_operation ("Cannot set properties of empty event", plist); |
| 428 | 597 UNGCPRO; |
| 598 return event; | |
| 599 } | |
| 600 else if (EQ (type, Qkey_press)) | |
| 601 { | |
| 934 | 602 set_event_type (e, key_press_event); |
| 1204 | 603 SET_EVENT_KEY_KEYSYM (e, Qunbound); |
| 428 | 604 } |
| 605 else if (EQ (type, Qbutton_press)) | |
| 934 | 606 set_event_type (e, button_press_event); |
| 428 | 607 else if (EQ (type, Qbutton_release)) |
| 934 | 608 set_event_type (e, button_release_event); |
| 428 | 609 else if (EQ (type, Qmotion)) |
| 934 | 610 set_event_type (e, pointer_motion_event); |
| 428 | 611 else if (EQ (type, Qmisc_user)) |
| 612 { | |
| 934 | 613 set_event_type (e, misc_user_event); |
| 1204 | 614 SET_EVENT_MISC_USER_FUNCTION (e, Qnil); |
| 615 SET_EVENT_MISC_USER_OBJECT (e, Qnil); | |
| 428 | 616 } |
| 617 else | |
| 618 { | |
| 619 /* Not allowed: Qprocess, Qtimeout, Qmagic, Qeval, Qmagic_eval. */ | |
| 563 | 620 invalid_constant ("Invalid event type", type); |
| 428 | 621 } |
| 622 | |
| 623 EVENT_CHANNEL (e) = Qnil; | |
| 624 | |
| 625 plist = Fcopy_sequence (plist); | |
| 626 Fcanonicalize_plist (plist, Qnil); | |
| 627 | |
| 442 | 628 #define WRONG_EVENT_TYPE_FOR_PROPERTY(event_type, prop) \ |
| 563 | 629 invalid_argument_2 ("Invalid property for event type", prop, event_type) |
| 428 | 630 |
| 442 | 631 { |
| 632 EXTERNAL_PROPERTY_LIST_LOOP_3 (keyword, value, plist) | |
| 633 { | |
| 634 if (EQ (keyword, Qchannel)) | |
| 635 { | |
| 1204 | 636 if (EVENT_TYPE (e) == key_press_event) |
| 442 | 637 { |
| 638 if (!CONSOLEP (value)) | |
| 639 value = wrong_type_argument (Qconsolep, value); | |
| 640 } | |
| 641 else | |
| 642 { | |
| 643 if (!FRAMEP (value)) | |
| 644 value = wrong_type_argument (Qframep, value); | |
| 645 } | |
| 646 EVENT_CHANNEL (e) = value; | |
| 647 } | |
| 648 else if (EQ (keyword, Qkey)) | |
| 649 { | |
| 1204 | 650 switch (EVENT_TYPE (e)) |
| 442 | 651 { |
| 652 case key_press_event: | |
| 653 if (!SYMBOLP (value) && !CHARP (value)) | |
| 563 | 654 invalid_argument ("Invalid event key", value); |
| 1204 | 655 SET_EVENT_KEY_KEYSYM (e, value); |
| 442 | 656 break; |
| 657 default: | |
| 658 WRONG_EVENT_TYPE_FOR_PROPERTY (type, keyword); | |
| 659 break; | |
| 660 } | |
| 661 } | |
| 662 else if (EQ (keyword, Qbutton)) | |
| 663 { | |
| 664 CHECK_NATNUM (value); | |
| 665 check_int_range (XINT (value), 0, 7); | |
| 428 | 666 |
| 1204 | 667 switch (EVENT_TYPE (e)) |
| 442 | 668 { |
| 669 case button_press_event: | |
| 670 case button_release_event: | |
| 1204 | 671 SET_EVENT_BUTTON_BUTTON (e, XINT (value)); |
| 442 | 672 break; |
| 673 case misc_user_event: | |
| 1204 | 674 SET_EVENT_MISC_USER_BUTTON (e, XINT (value)); |
| 442 | 675 break; |
| 676 default: | |
| 677 WRONG_EVENT_TYPE_FOR_PROPERTY (type, keyword); | |
| 678 break; | |
| 679 } | |
| 680 } | |
| 681 else if (EQ (keyword, Qmodifiers)) | |
| 682 { | |
| 683 int modifiers = 0; | |
| 428 | 684 |
| 442 | 685 EXTERNAL_LIST_LOOP_2 (sym, value) |
| 686 { | |
| 687 if (EQ (sym, Qcontrol)) modifiers |= XEMACS_MOD_CONTROL; | |
| 688 else if (EQ (sym, Qmeta)) modifiers |= XEMACS_MOD_META; | |
| 689 else if (EQ (sym, Qsuper)) modifiers |= XEMACS_MOD_SUPER; | |
| 690 else if (EQ (sym, Qhyper)) modifiers |= XEMACS_MOD_HYPER; | |
| 691 else if (EQ (sym, Qalt)) modifiers |= XEMACS_MOD_ALT; | |
| 692 else if (EQ (sym, Qsymbol)) modifiers |= XEMACS_MOD_ALT; | |
| 693 else if (EQ (sym, Qshift)) modifiers |= XEMACS_MOD_SHIFT; | |
| 694 else if (EQ (sym, Qbutton1)) modifiers |= XEMACS_MOD_BUTTON1; | |
| 695 else if (EQ (sym, Qbutton2)) modifiers |= XEMACS_MOD_BUTTON2; | |
| 696 else if (EQ (sym, Qbutton3)) modifiers |= XEMACS_MOD_BUTTON3; | |
| 697 else if (EQ (sym, Qbutton4)) modifiers |= XEMACS_MOD_BUTTON4; | |
| 698 else if (EQ (sym, Qbutton5)) modifiers |= XEMACS_MOD_BUTTON5; | |
| 699 else | |
| 563 | 700 invalid_constant ("Invalid key modifier", sym); |
| 442 | 701 } |
| 428 | 702 |
| 1204 | 703 switch (EVENT_TYPE (e)) |
| 442 | 704 { |
| 705 case key_press_event: | |
| 1204 | 706 SET_EVENT_KEY_MODIFIERS (e, modifiers); |
| 442 | 707 break; |
| 708 case button_press_event: | |
| 709 case button_release_event: | |
| 1204 | 710 SET_EVENT_BUTTON_MODIFIERS (e, modifiers); |
| 442 | 711 break; |
| 712 case pointer_motion_event: | |
| 1204 | 713 SET_EVENT_MOTION_MODIFIERS (e, modifiers); |
| 442 | 714 break; |
| 715 case misc_user_event: | |
| 1204 | 716 SET_EVENT_MISC_USER_MODIFIERS (e, modifiers); |
| 442 | 717 break; |
| 718 default: | |
| 719 WRONG_EVENT_TYPE_FOR_PROPERTY (type, keyword); | |
| 720 break; | |
| 721 } | |
| 722 } | |
| 723 else if (EQ (keyword, Qx)) | |
| 724 { | |
| 1204 | 725 switch (EVENT_TYPE (e)) |
| 442 | 726 { |
| 727 case pointer_motion_event: | |
| 728 case button_press_event: | |
| 729 case button_release_event: | |
| 730 case misc_user_event: | |
| 731 /* Allow negative values, so we can specify toolbar | |
| 732 positions. */ | |
| 733 CHECK_INT (value); | |
| 734 coord_x = XINT (value); | |
| 735 break; | |
| 736 default: | |
| 737 WRONG_EVENT_TYPE_FOR_PROPERTY (type, keyword); | |
| 738 break; | |
| 739 } | |
| 740 } | |
| 741 else if (EQ (keyword, Qy)) | |
| 742 { | |
| 1204 | 743 switch (EVENT_TYPE (e)) |
| 442 | 744 { |
| 745 case pointer_motion_event: | |
| 746 case button_press_event: | |
| 747 case button_release_event: | |
| 748 case misc_user_event: | |
| 749 /* Allow negative values; see above. */ | |
| 750 CHECK_INT (value); | |
| 751 coord_y = XINT (value); | |
| 752 break; | |
| 753 default: | |
| 754 WRONG_EVENT_TYPE_FOR_PROPERTY (type, keyword); | |
| 755 break; | |
| 756 } | |
| 757 } | |
| 758 else if (EQ (keyword, Qtimestamp)) | |
| 759 { | |
| 760 CHECK_NATNUM (value); | |
| 934 | 761 SET_EVENT_TIMESTAMP (e, XINT (value)); |
| 442 | 762 } |
| 763 else if (EQ (keyword, Qfunction)) | |
| 764 { | |
| 1204 | 765 switch (EVENT_TYPE (e)) |
| 442 | 766 { |
| 767 case misc_user_event: | |
| 1204 | 768 SET_EVENT_MISC_USER_FUNCTION (e, value); |
| 442 | 769 break; |
| 770 default: | |
| 771 WRONG_EVENT_TYPE_FOR_PROPERTY (type, keyword); | |
| 772 break; | |
| 773 } | |
| 774 } | |
| 775 else if (EQ (keyword, Qobject)) | |
| 776 { | |
| 1204 | 777 switch (EVENT_TYPE (e)) |
| 442 | 778 { |
| 779 case misc_user_event: | |
| 1204 | 780 SET_EVENT_MISC_USER_OBJECT (e, value); |
| 442 | 781 break; |
| 782 default: | |
| 783 WRONG_EVENT_TYPE_FOR_PROPERTY (type, keyword); | |
| 784 break; | |
| 785 } | |
| 786 } | |
| 787 else | |
| 563 | 788 invalid_constant_2 ("Invalid property", keyword, value); |
| 442 | 789 } |
| 790 } | |
| 428 | 791 |
| 792 /* Insert the channel, if missing. */ | |
| 793 if (NILP (EVENT_CHANNEL (e))) | |
| 794 { | |
| 934 | 795 if (EVENT_TYPE (e) == key_press_event) |
| 428 | 796 EVENT_CHANNEL (e) = Vselected_console; |
| 797 else | |
| 798 EVENT_CHANNEL (e) = Fselected_frame (Qnil); | |
| 799 } | |
| 800 | |
| 801 /* Fevent_properties, Fevent_x_pixel, etc. work with pixels relative | |
| 802 to the frame, so we must adjust accordingly. */ | |
| 803 if (FRAMEP (EVENT_CHANNEL (e))) | |
| 804 { | |
| 805 coord_x += FRAME_REAL_LEFT_TOOLBAR_WIDTH (XFRAME (EVENT_CHANNEL (e))); | |
| 806 coord_y += FRAME_REAL_TOP_TOOLBAR_HEIGHT (XFRAME (EVENT_CHANNEL (e))); | |
| 807 | |
| 808 switch (e->event_type) | |
| 809 { | |
| 810 case pointer_motion_event: | |
| 1204 | 811 SET_EVENT_MOTION_X (e, coord_x); |
| 812 SET_EVENT_MOTION_Y (e, coord_y); | |
| 428 | 813 break; |
| 814 case button_press_event: | |
| 815 case button_release_event: | |
| 1204 | 816 SET_EVENT_BUTTON_X (e, coord_x); |
| 817 SET_EVENT_BUTTON_Y (e, coord_y); | |
| 428 | 818 break; |
| 819 case misc_user_event: | |
| 1204 | 820 SET_EVENT_MISC_USER_X (e, coord_x); |
| 821 SET_EVENT_MISC_USER_Y (e, coord_y); | |
| 428 | 822 break; |
| 823 default: | |
| 2500 | 824 ABORT (); |
| 428 | 825 } |
| 826 } | |
| 827 | |
| 828 /* Finally, do some more validation. */ | |
| 1204 | 829 switch (EVENT_TYPE (e)) |
| 428 | 830 { |
| 831 case key_press_event: | |
| 1204 | 832 if (UNBOUNDP (EVENT_KEY_KEYSYM (e))) |
| 563 | 833 sferror ("A key must be specified to make a keypress event", |
| 442 | 834 plist); |
| 428 | 835 break; |
| 836 case button_press_event: | |
| 1204 | 837 if (!EVENT_BUTTON_BUTTON (e)) |
| 563 | 838 sferror |
| 442 | 839 ("A button must be specified to make a button-press event", |
| 840 plist); | |
| 428 | 841 break; |
| 842 case button_release_event: | |
| 1204 | 843 if (!EVENT_BUTTON_BUTTON (e)) |
| 563 | 844 sferror |
| 442 | 845 ("A button must be specified to make a button-release event", |
| 846 plist); | |
| 428 | 847 break; |
| 848 case misc_user_event: | |
| 1204 | 849 if (NILP (EVENT_MISC_USER_FUNCTION (e))) |
| 563 | 850 sferror ("A function must be specified to make a misc-user event", |
| 442 | 851 plist); |
| 428 | 852 break; |
| 853 default: | |
| 854 break; | |
| 855 } | |
| 856 | |
| 857 UNGCPRO; | |
| 858 return event; | |
| 859 } | |
| 860 | |
| 861 DEFUN ("deallocate-event", Fdeallocate_event, 1, 1, 0, /* | |
| 862 Allow the given event structure to be reused. | |
| 863 You MUST NOT use this event object after calling this function with it. | |
| 864 You will lose. It is not necessary to call this function, as event | |
| 865 objects are garbage-collected like all other objects; however, it may | |
| 866 be more efficient to explicitly deallocate events when you are sure | |
| 867 that it is safe to do so. | |
| 868 */ | |
| 869 (event)) | |
| 870 { | |
| 871 CHECK_EVENT (event); | |
| 872 | |
| 873 if (XEVENT_TYPE (event) == dead_event) | |
| 563 | 874 invalid_argument ("this event is already deallocated!", Qunbound); |
| 428 | 875 |
| 876 assert (XEVENT_TYPE (event) <= last_event_type); | |
| 877 | |
| 878 #if 0 | |
| 879 { | |
| 880 int i, len; | |
| 881 | |
| 882 if (EQ (event, Vlast_command_event) || | |
| 883 EQ (event, Vlast_input_event) || | |
| 884 EQ (event, Vunread_command_event)) | |
| 2500 | 885 ABORT (); |
| 428 | 886 |
| 887 len = XVECTOR_LENGTH (Vthis_command_keys); | |
| 888 for (i = 0; i < len; i++) | |
| 889 if (EQ (event, XVECTOR_DATA (Vthis_command_keys) [i])) | |
| 2500 | 890 ABORT (); |
| 428 | 891 if (!NILP (Vrecent_keys_ring)) |
| 892 { | |
| 893 int recent_ring_len = XVECTOR_LENGTH (Vrecent_keys_ring); | |
| 894 for (i = 0; i < recent_ring_len; i++) | |
| 895 if (EQ (event, XVECTOR_DATA (Vrecent_keys_ring) [i])) | |
| 2500 | 896 ABORT (); |
| 428 | 897 } |
| 898 } | |
| 899 #endif /* 0 */ | |
| 900 | |
| 901 assert (!EQ (event, Vevent_resource)); | |
| 902 deinitialize_event (event); | |
| 903 #ifndef ALLOC_NO_POOLS | |
| 904 XSET_EVENT_NEXT (event, Vevent_resource); | |
| 905 Vevent_resource = event; | |
| 906 #endif | |
| 907 return Qnil; | |
| 908 } | |
| 909 | |
| 910 DEFUN ("copy-event", Fcopy_event, 1, 2, 0, /* | |
| 444 | 911 Make a copy of the event object EVENT1. |
| 912 If a second event argument EVENT2 is given, EVENT1 is copied into | |
| 913 EVENT2 and EVENT2 is returned. If EVENT2 is not supplied (or is nil) | |
| 914 then a new event will be made as with `make-event'. See also the | |
| 915 function `deallocate-event'. | |
| 428 | 916 */ |
| 917 (event1, event2)) | |
| 918 { | |
| 919 CHECK_LIVE_EVENT (event1); | |
| 920 if (NILP (event2)) | |
| 921 event2 = Fmake_event (Qnil, Qnil); | |
| 430 | 922 else |
| 923 { | |
| 924 CHECK_LIVE_EVENT (event2); | |
| 925 if (EQ (event1, event2)) | |
| 563 | 926 return signal_continuable_error_2 |
| 927 (Qinvalid_argument, | |
| 928 "copy-event called with `eq' events", event1, event2); | |
| 430 | 929 } |
| 428 | 930 |
| 931 assert (XEVENT_TYPE (event1) <= last_event_type); | |
| 932 assert (XEVENT_TYPE (event2) <= last_event_type); | |
| 933 | |
| 934 | 934 XSET_EVENT_TYPE (event2, XEVENT_TYPE (event1)); |
| 935 XSET_EVENT_CHANNEL (event2, XEVENT_CHANNEL (event1)); | |
| 936 XSET_EVENT_TIMESTAMP (event2, XEVENT_TIMESTAMP (event1)); | |
| 1204 | 937 |
| 938 #ifdef EVENT_DATA_AS_OBJECTS | |
| 939 copy_lisp_object (XEVENT_DATA (event2), XEVENT_DATA (event1)); | |
| 940 #else | |
| 941 XEVENT (event2)->event = XEVENT (event1)->event; | |
| 942 #endif | |
| 934 | 943 return event2; |
| 428 | 944 } |
| 945 | |
| 946 | |
| 771 | 947 /************************************************************************/ |
| 948 /* event chain functions */ | |
| 949 /************************************************************************/ | |
| 428 | 950 |
| 951 /* Given a chain of events (or possibly nil), deallocate them all. */ | |
| 952 | |
| 953 void | |
| 954 deallocate_event_chain (Lisp_Object event_chain) | |
| 955 { | |
| 956 while (!NILP (event_chain)) | |
| 957 { | |
| 958 Lisp_Object next = XEVENT_NEXT (event_chain); | |
| 959 Fdeallocate_event (event_chain); | |
| 960 event_chain = next; | |
| 961 } | |
| 962 } | |
| 963 | |
| 964 /* Return the last event in a chain. | |
| 965 NOTE: You cannot pass nil as a value here! The routine will | |
| 966 abort if you do. */ | |
| 967 | |
| 968 Lisp_Object | |
| 969 event_chain_tail (Lisp_Object event_chain) | |
| 970 { | |
| 971 while (1) | |
| 972 { | |
| 973 Lisp_Object next = XEVENT_NEXT (event_chain); | |
| 974 if (NILP (next)) | |
| 975 return event_chain; | |
| 976 event_chain = next; | |
| 977 } | |
| 978 } | |
| 979 | |
| 980 /* Enqueue a single event onto the end of a chain of events. | |
| 981 HEAD points to the first event in the chain, TAIL to the last event. | |
| 982 If the chain is empty, both values should be nil. */ | |
| 983 | |
| 984 void | |
| 985 enqueue_event (Lisp_Object event, Lisp_Object *head, Lisp_Object *tail) | |
| 986 { | |
| 987 assert (NILP (XEVENT_NEXT (event))); | |
| 988 assert (!EQ (*tail, event)); | |
| 989 | |
| 990 if (!NILP (*tail)) | |
| 991 XSET_EVENT_NEXT (*tail, event); | |
| 992 else | |
| 993 *head = event; | |
| 994 *tail = event; | |
| 995 | |
| 996 assert (!EQ (event, XEVENT_NEXT (event))); | |
| 997 } | |
| 998 | |
| 999 /* Remove an event off the head of a chain of events and return it. | |
| 1000 HEAD points to the first event in the chain, TAIL to the last event. */ | |
| 1001 | |
| 1002 Lisp_Object | |
| 1003 dequeue_event (Lisp_Object *head, Lisp_Object *tail) | |
| 1004 { | |
| 1005 Lisp_Object event; | |
| 1006 | |
| 1007 event = *head; | |
| 1008 *head = XEVENT_NEXT (event); | |
| 1009 XSET_EVENT_NEXT (event, Qnil); | |
| 1010 if (NILP (*head)) | |
| 1011 *tail = Qnil; | |
| 1012 return event; | |
| 1013 } | |
| 1014 | |
| 1015 /* Enqueue a chain of events (or possibly nil) onto the end of another | |
| 1016 chain of events. HEAD points to the first event in the chain being | |
| 1017 queued onto, TAIL to the last event. If the chain is empty, both values | |
| 1018 should be nil. */ | |
| 1019 | |
| 1020 void | |
| 1021 enqueue_event_chain (Lisp_Object event_chain, Lisp_Object *head, | |
| 1022 Lisp_Object *tail) | |
| 1023 { | |
| 1024 if (NILP (event_chain)) | |
| 1025 return; | |
| 1026 | |
| 1027 if (NILP (*head)) | |
| 1028 { | |
| 1029 *head = event_chain; | |
| 1030 *tail = event_chain; | |
| 1031 } | |
| 1032 else | |
| 1033 { | |
| 1034 XSET_EVENT_NEXT (*tail, event_chain); | |
| 1035 *tail = event_chain_tail (event_chain); | |
| 1036 } | |
| 1037 } | |
| 1038 | |
| 1204 | 1039 /* Map a function over each event in the chain. If the function returns |
| 1040 non-zero, remove the event just processed. Return the total number of | |
| 1041 items removed. | |
| 1042 | |
| 1043 NOTE: | |
| 1044 | |
| 1045 If you want a simple mapping over an event chain, with no intention to | |
| 1046 add or remove items, just use EVENT_CHAIN_LOOP(). | |
| 1047 */ | |
| 1048 | |
| 1049 int | |
| 1050 map_event_chain_remove (int (*fn) (Lisp_Object ev, void *user_data), | |
| 1051 Lisp_Object *head, Lisp_Object *tail, | |
| 1052 void *user_data, int flags) | |
| 1053 { | |
| 1054 Lisp_Object event; | |
| 1055 Lisp_Object previous_event = Qnil; | |
| 1056 int count = 0; | |
| 1057 | |
| 1058 EVENT_CHAIN_LOOP (event, *head) | |
| 1059 { | |
| 1060 if (fn (event, user_data)) | |
| 1061 { | |
| 1062 if (NILP (previous_event)) | |
| 1063 dequeue_event (head, tail); | |
| 1064 else | |
| 1065 { | |
| 1066 XSET_EVENT_NEXT (previous_event, XEVENT_NEXT (event)); | |
| 1067 if (EQ (*tail, event)) | |
| 1068 *tail = previous_event; | |
| 1069 } | |
| 1070 | |
| 1071 if (flags & MECR_DEALLOCATE_EVENT) | |
| 1072 Fdeallocate_event (event); | |
| 1073 count++; | |
| 1074 } | |
| 1075 else | |
| 1076 previous_event = event; | |
| 1077 } | |
| 1078 return count; | |
| 1079 } | |
| 1080 | |
| 428 | 1081 /* Return the number of events (possibly 0) on an event chain. */ |
| 1082 | |
| 1083 int | |
| 1084 event_chain_count (Lisp_Object event_chain) | |
| 1085 { | |
| 1086 Lisp_Object event; | |
| 1087 int n = 0; | |
| 1088 | |
| 1089 EVENT_CHAIN_LOOP (event, event_chain) | |
| 1090 n++; | |
| 1091 | |
| 1092 return n; | |
| 1093 } | |
| 1094 | |
| 1095 /* Find the event before EVENT in an event chain. This aborts | |
| 1096 if the event is not in the chain. */ | |
| 1097 | |
| 1098 Lisp_Object | |
| 1099 event_chain_find_previous (Lisp_Object event_chain, Lisp_Object event) | |
| 1100 { | |
| 1101 Lisp_Object previous = Qnil; | |
| 1102 | |
| 1103 while (!NILP (event_chain)) | |
| 1104 { | |
| 1105 if (EQ (event_chain, event)) | |
| 1106 return previous; | |
| 1107 previous = event_chain; | |
| 1108 event_chain = XEVENT_NEXT (event_chain); | |
| 1109 } | |
| 1110 | |
| 2500 | 1111 ABORT (); |
| 428 | 1112 return Qnil; |
| 1113 } | |
| 1114 | |
| 1115 Lisp_Object | |
| 1116 event_chain_nth (Lisp_Object event_chain, int n) | |
| 1117 { | |
| 1118 Lisp_Object event; | |
| 1119 EVENT_CHAIN_LOOP (event, event_chain) | |
| 1120 { | |
| 1121 if (!n) | |
| 1122 return event; | |
| 1123 n--; | |
| 1124 } | |
| 1125 return Qnil; | |
| 1126 } | |
| 1127 | |
| 771 | 1128 /* Return a freshly allocated copy of all events in the given chain. */ |
| 1129 | |
| 428 | 1130 Lisp_Object |
| 1131 copy_event_chain (Lisp_Object event_chain) | |
| 1132 { | |
| 1133 Lisp_Object new_chain = Qnil; | |
| 1134 Lisp_Object new_chain_tail = Qnil; | |
| 1135 Lisp_Object event; | |
| 1136 | |
| 1137 EVENT_CHAIN_LOOP (event, event_chain) | |
| 1138 { | |
| 1139 Lisp_Object copy = Fcopy_event (event, Qnil); | |
| 1140 enqueue_event (copy, &new_chain, &new_chain_tail); | |
| 1141 } | |
| 1142 | |
| 1143 return new_chain; | |
| 1144 } | |
| 1145 | |
| 771 | 1146 /* Given a pointer (maybe nil) into an old chain (also maybe nil, if |
| 1147 pointer is nil) and a new chain which is a copy of the old, return | |
| 1148 the corresponding new pointer. */ | |
| 1149 Lisp_Object | |
| 1150 transfer_event_chain_pointer (Lisp_Object pointer, Lisp_Object old_chain, | |
| 1151 Lisp_Object new_chain) | |
| 1152 { | |
| 1153 if (NILP (pointer)) | |
| 1154 return Qnil; | |
| 1155 assert (!NILP (old_chain)); | |
| 800 | 1156 #ifdef ERROR_CHECK_STRUCTURES |
| 771 | 1157 /* make sure we're actually in the chain */ |
| 1158 event_chain_find_previous (old_chain, pointer); | |
| 1159 assert (event_chain_count (old_chain) == event_chain_count (new_chain)); | |
| 800 | 1160 #endif /* ERROR_CHECK_STRUCTURES */ |
| 771 | 1161 return event_chain_nth (new_chain, |
| 1162 event_chain_count (old_chain) - | |
| 1163 event_chain_count (pointer)); | |
| 1164 } | |
| 1165 | |
| 428 | 1166 |
| 771 | 1167 /************************************************************************/ |
| 1168 /* higher level functions */ | |
| 1169 /************************************************************************/ | |
| 428 | 1170 |
| 1171 Lisp_Object QKbackspace, QKtab, QKlinefeed, QKreturn, QKescape, | |
| 1172 QKspace, QKdelete; | |
| 1173 | |
| 1174 int | |
| 1175 command_event_p (Lisp_Object event) | |
| 1176 { | |
| 1177 switch (XEVENT_TYPE (event)) | |
| 1178 { | |
| 1179 case key_press_event: | |
| 1180 case button_press_event: | |
| 1181 case button_release_event: | |
| 1182 case misc_user_event: | |
| 1183 return 1; | |
| 1184 default: | |
| 1185 return 0; | |
| 1186 } | |
| 1187 } | |
| 1188 | |
|
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1189 /* META_BEHAVIOR can be one of the following values, defined in events.h: |
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1190 |
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1191 high_bit_is_meta |
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1192 use_console_meta_flag |
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1193 latin_1_maps_to_itself |
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1194 |
| 1204 | 1195 DO_BACKSPACE_MAPPING means that if CON is a TTY, and C is a the TTY's |
| 1196 backspace character, the event will have keysym `backspace' instead of | |
| 1197 '(control h). It is clearly correct to do this conversion is the | |
| 1198 character was just read from a TTY, clearly incorrect inside of | |
| 1199 define-key, which must be able to handle all consoles. #### What about | |
| 1200 in other circumstances? #### Should the user have access to this flag? | |
| 1201 | |
| 1202 #### We need to go through and review all the flags in | |
| 1203 character_to_event() and event_to_character() and figure out exactly | |
| 1204 under what circumstances they should or should not be set, then go | |
| 1205 through and review all callers of character_to_event(), | |
| 1206 Fcharacter_to_event(), event_to_character(), and Fevent_to_character() | |
| 1207 and check that they are passing the correct flags in for their varied | |
| 1208 circumstances. | |
| 1209 | |
| 1210 #### Some of this garbage, and some of the flags, could go away if we | |
| 1211 implemented the suggestion, originally from event-Xt.c: | |
| 1212 | |
| 2828 | 1213 [[ The way that keysym correspondence to characters should work: |
| 1204 | 1214 - a Lisp_Event should contain a keysym AND a character slot. |
| 1215 - keybindings are tried with the keysym. If no binding can be found, | |
| 2828 | 1216 and there is a corresponding character, call self-insert-command. ]] |
| 1217 | |
| 1218 That's an X-specific way of thinking. All the other platforms--even | |
| 1219 the TTY, make sure you've done (set-input-mode t nil 1) and set your | |
| 1220 console coding system appropriately when checking--just use | |
| 1221 characters as emacs keysyms, and, together with defaulting to | |
| 1222 self-insert-command if an unbound key with a character correspondence | |
| 1223 is typed, that works fine for them. (Yes, this ignores GTK.) | |
| 1224 | |
| 1225 [[ [... snipping other suggestions which I've implemented.] | |
| 1226 Nuke the Qascii_character property. ]] | |
| 1204 | 1227 |
| 2828 | 1228 Well, we've renamed it anyway--it was badly named. |
| 1229 Qcharacter_of_keysym, here we go. It's really only with X11 that how | |
| 1230 to map between adiaeresis and (int-to-char #xE4), or ellipsis and | |
| 1231 whatever, becomes an issue, and IMO the property approach to this is | |
| 1232 fine. Aidan Kehoe, 2005-05-15. | |
| 1204 | 1233 |
| 2828 | 1234 [[ This would apparently solve a lot of different problems. ]] |
| 1235 | |
| 1236 I'd be interested to know what's left. Removing the allow-meta | |
| 1237 argument from event-to-character would be a Good Thing, IMO, but | |
| 1238 beyond that, I'm not sure what else there is to do wrt. key | |
| 1239 mappings. Of course, feedback from users of the Russian C-x facility | |
| 1240 is still needed. */ | |
| 428 | 1241 |
| 1242 void | |
| 867 | 1243 character_to_event (Ichar c, Lisp_Event *event, struct console *con, |
|
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1244 character_to_event_meta_behavior meta_behavior, |
| 2340 | 1245 int USED_IF_TTY (do_backspace_mapping)) |
| 428 | 1246 { |
| 1247 Lisp_Object k = Qnil; | |
| 442 | 1248 int m = 0; |
| 934 | 1249 if (EVENT_TYPE (event) == dead_event) |
| 563 | 1250 invalid_argument ("character-to-event called with a deallocated event!", Qunbound); |
| 428 | 1251 |
| 1252 #ifndef MULE | |
| 1253 c &= 255; | |
| 1254 #endif | |
|
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1255 if (meta_behavior != latin_1_maps_to_itself && c > 127 && c <= 255) |
| 428 | 1256 { |
| 1257 int meta_flag = 1; | |
|
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1258 if (meta_behavior == use_console_meta_flag && CONSOLE_TTY_P (con)) |
| 428 | 1259 meta_flag = TTY_FLAGS (con).meta_key; |
| 1260 switch (meta_flag) | |
| 1261 { | |
| 1262 case 0: /* ignore top bit; it's parity */ | |
| 1263 c -= 128; | |
| 1264 break; | |
| 1265 case 1: /* top bit is meta */ | |
| 1266 c -= 128; | |
| 442 | 1267 m = XEMACS_MOD_META; |
| 428 | 1268 break; |
| 1269 default: /* this is a real character */ | |
| 1270 break; | |
| 1271 } | |
| 1272 } | |
| 442 | 1273 if (c < ' ') c += '@', m |= XEMACS_MOD_CONTROL; |
| 1274 if (m & XEMACS_MOD_CONTROL) | |
| 428 | 1275 { |
| 1276 switch (c) | |
| 1277 { | |
| 442 | 1278 case 'I': k = QKtab; m &= ~XEMACS_MOD_CONTROL; break; |
| 1279 case 'J': k = QKlinefeed; m &= ~XEMACS_MOD_CONTROL; break; | |
| 1280 case 'M': k = QKreturn; m &= ~XEMACS_MOD_CONTROL; break; | |
| 1281 case '[': k = QKescape; m &= ~XEMACS_MOD_CONTROL; break; | |
| 428 | 1282 default: |
| 1204 | 1283 #if defined (HAVE_TTY) |
| 428 | 1284 if (do_backspace_mapping && |
| 1285 CHARP (con->tty_erase_char) && | |
| 1286 c - '@' == XCHAR (con->tty_erase_char)) | |
| 1287 { | |
| 1288 k = QKbackspace; | |
| 442 | 1289 m &= ~XEMACS_MOD_CONTROL; |
| 428 | 1290 } |
| 1204 | 1291 #endif /* defined (HAVE_TTY) */ |
| 428 | 1292 break; |
| 1293 } | |
| 1294 if (c >= 'A' && c <= 'Z') c -= 'A'-'a'; | |
| 1295 } | |
| 1204 | 1296 #if defined (HAVE_TTY) |
| 428 | 1297 else if (do_backspace_mapping && |
| 1298 CHARP (con->tty_erase_char) && c == XCHAR (con->tty_erase_char)) | |
| 1299 k = QKbackspace; | |
| 1204 | 1300 #endif /* defined (HAVE_TTY) */ |
| 428 | 1301 else if (c == 127) |
| 1302 k = QKdelete; | |
| 1303 else if (c == ' ') | |
| 1304 k = QKspace; | |
| 1305 | |
| 934 | 1306 set_event_type (event, key_press_event); |
| 1307 SET_EVENT_TIMESTAMP_ZERO (event); /* #### */ | |
| 1308 SET_EVENT_CHANNEL (event, wrap_console (con)); | |
| 1204 | 1309 SET_EVENT_KEY_KEYSYM (event, (!NILP (k) ? k : make_char (c))); |
| 1310 SET_EVENT_KEY_MODIFIERS (event, m); | |
| 428 | 1311 } |
| 1312 | |
| 867 | 1313 Ichar |
| 1204 | 1314 event_to_character (Lisp_Object event, |
| 428 | 1315 int allow_extra_modifiers, |
| 2828 | 1316 int allow_meta) |
| 428 | 1317 { |
| 867 | 1318 Ichar c = 0; |
| 428 | 1319 Lisp_Object code; |
| 1320 | |
| 1204 | 1321 if (XEVENT_TYPE (event) != key_press_event) |
| 428 | 1322 { |
| 1204 | 1323 assert (XEVENT_TYPE (event) != dead_event); |
| 428 | 1324 return -1; |
| 1325 } | |
| 1326 if (!allow_extra_modifiers && | |
| 2828 | 1327 XEVENT_KEY_MODIFIERS (event) & |
| 1328 (XEMACS_MOD_SUPER|XEMACS_MOD_HYPER|XEMACS_MOD_ALT)) | |
| 428 | 1329 return -1; |
| 1204 | 1330 if (CHAR_OR_CHAR_INTP (XEVENT_KEY_KEYSYM (event))) |
| 1331 c = XCHAR_OR_CHAR_INT (XEVENT_KEY_KEYSYM (event)); | |
| 1332 else if (!SYMBOLP (XEVENT_KEY_KEYSYM (event))) | |
| 2500 | 1333 ABORT (); |
| 1204 | 1334 else if (CHAR_OR_CHAR_INTP (code = Fget (XEVENT_KEY_KEYSYM (event), |
| 2828 | 1335 Qcharacter_of_keysym, Qnil))) |
| 428 | 1336 c = XCHAR_OR_CHAR_INT (code); |
| 1337 else | |
| 2828 | 1338 { |
| 1339 Lisp_Object thekeysym = XEVENT_KEY_KEYSYM (event); | |
| 1340 | |
| 1341 if (CHAR_OR_CHAR_INTP (code = Fget (thekeysym, Qascii_character, Qnil))) | |
| 1342 { | |
| 1343 c = XCHAR_OR_CHAR_INT (code); | |
| 1344 warn_when_safe(Qkey_mapping, Qwarning, | |
| 1345 "Obsolete key binding technique.\n" | |
| 428 | 1346 |
| 2828 | 1347 "Some code you're using bound %s to `self-insert-command' and messed around\n" |
| 1348 "with its `ascii-character' property. Doing this is deprecated, and the code\n" | |
| 1349 "should be updated to use the `set-character-of-keysym' interface.\n" | |
| 1350 "If you're the one updating the code, first check if there's still a need\n" | |
| 1351 "for it; we support many more X11 keysyms out of the box now than we did\n" | |
| 1352 "in the past. ", XSTRING_DATA(XSYMBOL_NAME(thekeysym))); | |
| 1353 /* Only show the warning once for each keysym. */ | |
| 1354 Fput(thekeysym, Qcharacter_of_keysym, code); | |
| 1355 } | |
| 1356 else | |
| 1357 { | |
| 1358 return -1; | |
| 1359 } | |
| 1360 } | |
| 1204 | 1361 if (XEVENT_KEY_MODIFIERS (event) & XEMACS_MOD_CONTROL) |
| 428 | 1362 { |
| 1363 if (c >= 'a' && c <= 'z') | |
| 1364 c -= ('a' - 'A'); | |
| 1365 else | |
| 1366 /* reject Control-Shift- keys */ | |
| 1367 if (c >= 'A' && c <= 'Z' && !allow_extra_modifiers) | |
| 1368 return -1; | |
| 1369 | |
| 1370 if (c >= '@' && c <= '_') | |
| 1371 c -= '@'; | |
| 1372 else if (c == ' ') /* C-space and C-@ are the same. */ | |
| 1373 c = 0; | |
| 1374 else | |
| 1375 /* reject keys that can't take Control- modifiers */ | |
| 1376 if (! allow_extra_modifiers) return -1; | |
| 1377 } | |
| 1378 | |
| 1204 | 1379 if (XEVENT_KEY_MODIFIERS (event) & XEMACS_MOD_META) |
| 428 | 1380 { |
| 1381 if (! allow_meta) return -1; | |
| 1204 | 1382 if (c >= 128) return -1; /* don't allow M-oslash (overlap) */ |
| 428 | 1383 c |= 0200; |
| 1384 } | |
| 1385 return c; | |
| 1386 } | |
| 1387 | |
| 2862 | 1388 DEFUN ("event-to-character", Fevent_to_character, 1, 4, 0, /* |
| 2828 | 1389 Return the closest character approximation to the given event object. |
| 428 | 1390 If the event isn't a keypress, this returns nil. |
| 1391 If the ALLOW-EXTRA-MODIFIERS argument is non-nil, then this is lenient in | |
| 1392 its translation; it will ignore modifier keys other than control and meta, | |
| 1393 and will ignore the shift modifier on those characters which have no | |
| 1394 shifted ASCII equivalent (Control-Shift-A for example, will be mapped to | |
| 1395 the same ASCII code as Control-A). | |
| 1396 If the ALLOW-META argument is non-nil, then the Meta modifier will be | |
| 1397 represented by turning on the high bit of the byte returned; otherwise, nil | |
| 1398 will be returned for events containing the Meta modifier. | |
| 1204 | 1399 Note that ALLOW-META may cause ambiguity between meta characters and |
| 1400 Latin-1 characters. | |
| 2862 | 1401 ALLOW-NON-ASCII is unused, and retained for compatibility. |
| 428 | 1402 */ |
| 2862 | 1403 (event, allow_extra_modifiers, allow_meta, UNUSED(allow_non_ascii))) |
| 428 | 1404 { |
| 867 | 1405 Ichar c; |
| 428 | 1406 CHECK_LIVE_EVENT (event); |
| 1204 | 1407 c = event_to_character (event, |
| 428 | 1408 !NILP (allow_extra_modifiers), |
| 2828 | 1409 !NILP (allow_meta)); |
| 428 | 1410 return c < 0 ? Qnil : make_char (c); |
| 1411 } | |
| 1412 | |
| 1413 DEFUN ("character-to-event", Fcharacter_to_event, 1, 4, 0, /* | |
| 444 | 1414 Convert KEY-DESCRIPTION into an event structure, replete with bucky bits. |
| 428 | 1415 |
| 444 | 1416 KEY-DESCRIPTION is the first argument, and the event to fill in is the |
| 1417 second. This function contains knowledge about what various kinds of | |
| 1418 arguments ``mean'' -- for example, the number 9 is converted to the | |
| 1419 character ``Tab'', not the distinct character ``Control-I''. | |
| 428 | 1420 |
| 3025 | 1421 KEY-DESCRIPTION can be an integer, a character, a symbol such as `clear', |
| 444 | 1422 or a list such as '(control backspace). |
| 1423 | |
| 1424 If the optional second argument EVENT is an event, it is modified and | |
| 1425 returned; otherwise, a new event object is created and returned. | |
| 428 | 1426 |
| 1427 Optional third arg CONSOLE is the console to store in the event, and | |
| 1428 defaults to the selected console. | |
| 1429 | |
| 444 | 1430 If KEY-DESCRIPTION is an integer or character, the high bit may be |
| 1204 | 1431 interpreted as the meta key. (This is done for backward compatibility in |
| 1432 lots of places -- specifically, because lots of Lisp code uses specs like | |
| 1433 ?\M-d and "\M-d" in key code, expecting this to work; yet these are in | |
| 1434 reality converted directly to 8-bit characters by the Lisp reader.) If | |
| 1435 USE-CONSOLE-META-FLAG is nil or CONSOLE is not a TTY, this will always be | |
| 1436 the case. If USE-CONSOLE-META-FLAG is non-nil and CONSOLE is a TTY, the | |
| 1437 `meta' flag for CONSOLE affects whether the high bit is interpreted as a | |
| 1438 meta key. (See `set-input-mode'.) Don't set this flag to non-nil unless | |
| 1439 you know what you're doing (more specifically, only if the character came | |
| 1440 directly from a TTY, not from the user). If you don't want this silly meta | |
| 1441 interpretation done, you should pass in a list containing the character. | |
| 428 | 1442 |
| 1443 Beware that character-to-event and event-to-character are not strictly | |
| 1444 inverse functions, since events contain much more information than the | |
| 444 | 1445 Lisp character object type can encode. |
| 428 | 1446 */ |
|
4780
2fd201d73a92
Call character_to_event on characters received from XIM, event-Xt.c
Aidan Kehoe <kehoea@parhasard.net>
parents:
3092
diff
changeset
|
1447 (keystroke, event, console, use_console_meta_flag_)) |
| 428 | 1448 { |
| 1449 struct console *con = decode_console (console); | |
| 1450 if (NILP (event)) | |
| 1451 event = Fmake_event (Qnil, Qnil); | |
| 1452 else | |
| 1453 CHECK_LIVE_EVENT (event); | |
| 444 | 1454 if (CONSP (keystroke) || SYMBOLP (keystroke)) |
| 1455 key_desc_list_to_event (keystroke, event, 1); | |
| 428 | 1456 else |
| 1457 { | |
| 444 | 1458 CHECK_CHAR_COERCE_INT (keystroke); |
| 1459 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
|
1460 (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
|
1461 high_bit_is_meta : use_console_meta_flag), 1); |
| 428 | 1462 } |
| 1463 return event; | |
| 1464 } | |
| 1465 | |
| 1466 void | |
| 1467 nth_of_key_sequence_as_event (Lisp_Object seq, int n, Lisp_Object event) | |
| 1468 { | |
| 1469 assert (STRINGP (seq) || VECTORP (seq)); | |
| 1470 assert (n < XINT (Flength (seq))); | |
| 1471 | |
| 1472 if (STRINGP (seq)) | |
| 1473 { | |
| 867 | 1474 Ichar ch = string_ichar (seq, n); |
| 428 | 1475 Fcharacter_to_event (make_char (ch), event, Qnil, Qnil); |
| 1476 } | |
| 1477 else | |
| 1478 { | |
| 1479 Lisp_Object keystroke = XVECTOR_DATA (seq)[n]; | |
| 1480 if (EVENTP (keystroke)) | |
| 1481 Fcopy_event (keystroke, event); | |
| 1482 else | |
| 1483 Fcharacter_to_event (keystroke, event, Qnil, Qnil); | |
| 1484 } | |
| 1485 } | |
| 1486 | |
| 1487 Lisp_Object | |
| 1488 key_sequence_to_event_chain (Lisp_Object seq) | |
| 1489 { | |
| 1490 int len = XINT (Flength (seq)); | |
| 1491 int i; | |
| 1492 Lisp_Object head = Qnil, tail = Qnil; | |
| 1493 | |
| 1494 for (i = 0; i < len; i++) | |
| 1495 { | |
| 1496 Lisp_Object event = Fmake_event (Qnil, Qnil); | |
| 1497 nth_of_key_sequence_as_event (seq, i, event); | |
| 1498 enqueue_event (event, &head, &tail); | |
| 1499 } | |
| 1500 | |
| 1501 return head; | |
| 1502 } | |
| 1503 | |
| 934 | 1504 |
| 793 | 1505 /* Concatenate a string description of EVENT onto the end of BUF. If |
| 1506 BRIEF, use short forms for keys, e.g. C- instead of control-. */ | |
| 1507 | |
| 934 | 1508 void |
| 1509 format_event_object (Eistring *buf, Lisp_Object event, int brief) | |
| 428 | 1510 { |
| 1511 int mouse_p = 0; | |
| 1512 int mod = 0; | |
| 1513 Lisp_Object key; | |
| 1514 | |
| 1204 | 1515 switch (XEVENT_TYPE (event)) |
| 428 | 1516 { |
| 1517 case key_press_event: | |
| 1518 { | |
| 1204 | 1519 mod = XEVENT_KEY_MODIFIERS (event); |
| 1520 key = XEVENT_KEY_KEYSYM (event); | |
| 428 | 1521 /* Hack. */ |
| 1522 if (! brief && CHARP (key) && | |
| 793 | 1523 mod & (XEMACS_MOD_CONTROL | XEMACS_MOD_META | XEMACS_MOD_SUPER | |
| 1524 XEMACS_MOD_HYPER)) | |
| 428 | 1525 { |
| 1526 int k = XCHAR (key); | |
| 1527 if (k >= 'a' && k <= 'z') | |
| 1528 key = make_char (k - ('a' - 'A')); | |
| 1529 else if (k >= 'A' && k <= 'Z') | |
| 442 | 1530 mod |= XEMACS_MOD_SHIFT; |
| 428 | 1531 } |
| 1532 break; | |
| 1533 } | |
| 1534 case button_release_event: | |
| 1535 mouse_p++; | |
| 1536 /* Fall through */ | |
| 1537 case button_press_event: | |
| 1538 { | |
| 1539 mouse_p++; | |
| 1204 | 1540 mod = XEVENT_BUTTON_MODIFIERS (event); |
| 1541 key = make_char (XEVENT_BUTTON_BUTTON (event) + '0'); | |
| 428 | 1542 break; |
| 1543 } | |
| 1544 case magic_event: | |
| 1545 { | |
| 788 | 1546 Lisp_Object stream; |
| 1547 struct gcpro gcpro1; | |
| 1548 GCPRO1 (stream); | |
| 428 | 1549 |
| 788 | 1550 stream = make_resizing_buffer_output_stream (); |
| 1204 | 1551 event_stream_format_magic_event (XEVENT (event), stream); |
| 788 | 1552 Lstream_flush (XLSTREAM (stream)); |
| 793 | 1553 eicat_raw (buf, resizing_buffer_stream_ptr (XLSTREAM (stream)), |
| 1554 Lstream_byte_count (XLSTREAM (stream))); | |
| 788 | 1555 Lstream_delete (XLSTREAM (stream)); |
| 1556 UNGCPRO; | |
| 428 | 1557 return; |
| 1558 } | |
| 2421 | 1559 case magic_eval_event: eicat_ascii (buf, "magic-eval"); return; |
| 1560 case pointer_motion_event: eicat_ascii (buf, "motion"); return; | |
| 1561 case misc_user_event: eicat_ascii (buf, "misc-user"); return; | |
| 1562 case eval_event: eicat_ascii (buf, "eval"); return; | |
| 1563 case process_event: eicat_ascii (buf, "process"); return; | |
| 1564 case timeout_event: eicat_ascii (buf, "timeout"); return; | |
| 1565 case empty_event: eicat_ascii (buf, "empty"); return; | |
| 1566 case dead_event: eicat_ascii (buf, "DEAD-EVENT"); return; | |
| 428 | 1567 default: |
| 2500 | 1568 ABORT (); |
| 442 | 1569 return; |
| 428 | 1570 } |
| 793 | 1571 #define modprint(x,y) \ |
| 2421 | 1572 do { if (brief) eicat_ascii (buf, (y)); else eicat_ascii (buf, (x)); } while (0) |
| 442 | 1573 if (mod & XEMACS_MOD_CONTROL) modprint ("control-", "C-"); |
| 1574 if (mod & XEMACS_MOD_META) modprint ("meta-", "M-"); | |
| 1575 if (mod & XEMACS_MOD_SUPER) modprint ("super-", "S-"); | |
| 1576 if (mod & XEMACS_MOD_HYPER) modprint ("hyper-", "H-"); | |
| 1577 if (mod & XEMACS_MOD_ALT) modprint ("alt-", "A-"); | |
| 1578 if (mod & XEMACS_MOD_SHIFT) modprint ("shift-", "Sh-"); | |
| 428 | 1579 if (mouse_p) |
| 1580 { | |
| 2421 | 1581 eicat_ascii (buf, "button"); |
| 428 | 1582 --mouse_p; |
| 1583 } | |
| 1584 | |
| 1585 #undef modprint | |
| 1586 | |
| 1587 if (CHARP (key)) | |
| 793 | 1588 eicat_ch (buf, XCHAR (key)); |
| 428 | 1589 else if (SYMBOLP (key)) |
| 1590 { | |
| 2367 | 1591 const Ascbyte *str = 0; |
| 428 | 1592 if (brief) |
| 1593 { | |
| 1594 if (EQ (key, QKlinefeed)) str = "LFD"; | |
| 1595 else if (EQ (key, QKtab)) str = "TAB"; | |
| 1596 else if (EQ (key, QKreturn)) str = "RET"; | |
| 1597 else if (EQ (key, QKescape)) str = "ESC"; | |
| 1598 else if (EQ (key, QKdelete)) str = "DEL"; | |
| 1599 else if (EQ (key, QKspace)) str = "SPC"; | |
| 1600 else if (EQ (key, QKbackspace)) str = "BS"; | |
| 1601 } | |
| 1602 if (str) | |
| 2421 | 1603 eicat_ascii (buf, str); |
| 428 | 1604 else |
| 793 | 1605 eicat_lstr (buf, XSYMBOL (key)->name); |
| 428 | 1606 } |
| 1607 else | |
| 2500 | 1608 ABORT (); |
| 428 | 1609 if (mouse_p) |
| 2421 | 1610 eicat_ascii (buf, "up"); |
| 428 | 1611 } |
| 1612 | |
| 1204 | 1613 void |
| 1614 upshift_event (Lisp_Object event) | |
| 1615 { | |
| 1616 Lisp_Object keysym = XEVENT_KEY_KEYSYM (event); | |
| 1617 Ichar c = 0; | |
| 1618 | |
| 1619 if (CHAR_OR_CHAR_INTP (keysym) | |
| 1620 && ((c = XCHAR_OR_CHAR_INT (keysym)), | |
| 1621 c >= 'a' && c <= 'z')) | |
| 1622 XSET_EVENT_KEY_KEYSYM (event, make_char (c + 'A' - 'a')); | |
| 1623 else | |
| 1624 if (!(XEVENT_KEY_MODIFIERS (event) & XEMACS_MOD_SHIFT)) | |
| 1625 XSET_EVENT_KEY_MODIFIERS | |
| 1626 (event, XEVENT_KEY_MODIFIERS (event) |= XEMACS_MOD_SHIFT); | |
| 1627 } | |
| 1628 | |
| 1629 void | |
| 1630 downshift_event (Lisp_Object event) | |
| 1631 { | |
| 1632 Lisp_Object keysym = XEVENT_KEY_KEYSYM (event); | |
| 1633 Ichar c = 0; | |
| 1634 | |
| 1635 if (XEVENT_KEY_MODIFIERS (event) & XEMACS_MOD_SHIFT) | |
| 1636 XSET_EVENT_KEY_MODIFIERS | |
| 1637 (event, XEVENT_KEY_MODIFIERS (event) & ~XEMACS_MOD_SHIFT); | |
| 1638 else if (CHAR_OR_CHAR_INTP (keysym) | |
| 1639 && ((c = XCHAR_OR_CHAR_INT (keysym)), | |
| 1640 c >= 'A' && c <= 'Z')) | |
| 1641 XSET_EVENT_KEY_KEYSYM (event, make_char (c + 'a' - 'A')); | |
| 1642 } | |
| 1643 | |
| 1644 int | |
| 1645 event_upshifted_p (Lisp_Object event) | |
| 1646 { | |
| 1647 Lisp_Object keysym = XEVENT_KEY_KEYSYM (event); | |
| 1648 Ichar c = 0; | |
| 1649 | |
| 1650 if ((XEVENT_KEY_MODIFIERS (event) & XEMACS_MOD_SHIFT) | |
| 1651 || (CHAR_OR_CHAR_INTP (keysym) | |
| 1652 && ((c = XCHAR_OR_CHAR_INT (keysym)), | |
| 1653 c >= 'A' && c <= 'Z'))) | |
| 1654 return 1; | |
| 1655 else | |
| 1656 return 0; | |
| 1657 } | |
| 934 | 1658 |
| 428 | 1659 DEFUN ("eventp", Feventp, 1, 1, 0, /* |
| 1660 True if OBJECT is an event object. | |
| 1661 */ | |
| 1662 (object)) | |
| 1663 { | |
| 1664 return EVENTP (object) ? Qt : Qnil; | |
| 1665 } | |
| 1666 | |
| 1667 DEFUN ("event-live-p", Fevent_live_p, 1, 1, 0, /* | |
| 1668 True if OBJECT is an event object that has not been deallocated. | |
| 1669 */ | |
| 1670 (object)) | |
| 1671 { | |
| 934 | 1672 return EVENTP (object) && XEVENT_TYPE (object) != dead_event ? |
| 1673 Qt : Qnil; | |
| 428 | 1674 } |
| 1675 | |
| 1676 #if 0 /* debugging functions */ | |
| 1677 | |
| 826 | 1678 DEFUN ("event-next", Fevent_next, 1, 1, 0, /* |
| 428 | 1679 Return the event object's `next' event, or nil if it has none. |
| 1680 The `next-event' field is changed by calling `set-next-event'. | |
| 1681 */ | |
| 1682 (event)) | |
| 1683 { | |
| 440 | 1684 Lisp_Event *e; |
| 428 | 1685 CHECK_LIVE_EVENT (event); |
| 1686 | |
| 1687 return XEVENT_NEXT (event); | |
| 1688 } | |
| 1689 | |
| 826 | 1690 DEFUN ("set-event-next", Fset_event_next, 2, 2, 0, /* |
| 428 | 1691 Set the `next event' of EVENT to NEXT-EVENT. |
| 1692 NEXT-EVENT must be an event object or nil. | |
| 1693 */ | |
| 1694 (event, next_event)) | |
| 1695 { | |
| 1696 Lisp_Object ev; | |
| 1697 | |
| 1698 CHECK_LIVE_EVENT (event); | |
| 1699 if (NILP (next_event)) | |
| 1700 { | |
| 1701 XSET_EVENT_NEXT (event, Qnil); | |
| 1702 return Qnil; | |
| 1703 } | |
| 1704 | |
| 1705 CHECK_LIVE_EVENT (next_event); | |
| 1706 | |
| 1707 EVENT_CHAIN_LOOP (ev, XEVENT_NEXT (event)) | |
| 1708 { | |
| 1709 QUIT; | |
| 1710 if (EQ (ev, event)) | |
| 563 | 1711 invalid_operation_2 ("Cyclic event-next", event, next_event); |
| 428 | 1712 } |
| 1713 XSET_EVENT_NEXT (event, next_event); | |
| 1714 return next_event; | |
| 1715 } | |
| 1716 | |
| 1717 #endif /* 0 */ | |
| 1718 | |
| 1719 DEFUN ("event-type", Fevent_type, 1, 1, 0, /* | |
| 1720 Return the type of EVENT. | |
| 1721 This will be a symbol; one of | |
| 1722 | |
| 1723 key-press A key was pressed. | |
| 1724 button-press A mouse button was pressed. | |
| 1725 button-release A mouse button was released. | |
| 1726 misc-user Some other user action happened; typically, this is | |
| 1727 a menu selection or scrollbar action. | |
| 1728 motion The mouse moved. | |
| 1729 process Input is available from a subprocess. | |
| 1730 timeout A timeout has expired. | |
| 1731 eval This causes a specified action to occur when dispatched. | |
| 1732 magic Some window-system-specific event has occurred. | |
| 1733 empty The event has been allocated but not assigned. | |
| 1734 | |
| 1735 */ | |
| 1736 (event)) | |
| 1737 { | |
| 1738 CHECK_LIVE_EVENT (event); | |
| 934 | 1739 switch (XEVENT_TYPE (event)) |
| 428 | 1740 { |
| 1741 case key_press_event: return Qkey_press; | |
| 1742 case button_press_event: return Qbutton_press; | |
| 1743 case button_release_event: return Qbutton_release; | |
| 1744 case misc_user_event: return Qmisc_user; | |
| 1745 case pointer_motion_event: return Qmotion; | |
| 1746 case process_event: return Qprocess; | |
| 1747 case timeout_event: return Qtimeout; | |
| 1748 case eval_event: return Qeval; | |
| 1749 case magic_event: | |
| 1750 case magic_eval_event: | |
| 1751 return Qmagic; | |
| 1752 | |
| 1753 case empty_event: | |
| 1754 return Qempty; | |
| 1755 | |
| 1756 default: | |
| 2500 | 1757 ABORT (); |
| 428 | 1758 return Qnil; |
| 1759 } | |
| 1760 } | |
| 1761 | |
| 1762 DEFUN ("event-timestamp", Fevent_timestamp, 1, 1, 0, /* | |
| 1763 Return the timestamp of the event object EVENT. | |
| 442 | 1764 Timestamps are measured in milliseconds since the start of the window system. |
| 1765 They are NOT related to any current time measurement. | |
| 1766 They should be compared with `event-timestamp<'. | |
| 1767 See also `current-event-timestamp'. | |
| 428 | 1768 */ |
| 1769 (event)) | |
| 1770 { | |
| 1771 CHECK_LIVE_EVENT (event); | |
| 1772 /* This junk is so that timestamps don't get to be negative, but contain | |
| 1773 as many bits as this particular emacs will allow. | |
| 1774 */ | |
| 2039 | 1775 return make_int (EMACS_INT_MAX & XEVENT_TIMESTAMP (event)); |
| 428 | 1776 } |
| 1777 | |
| 2039 | 1778 #define TIMESTAMP_HALFSPACE (1L << (INT_VALBITS - 2)) |
| 442 | 1779 |
| 1780 DEFUN ("event-timestamp<", Fevent_timestamp_lessp, 2, 2, 0, /* | |
| 1781 Return true if timestamp TIME1 is earlier than timestamp TIME2. | |
| 1782 This correctly handles timestamp wrap. | |
| 1783 See also `event-timestamp' and `current-event-timestamp'. | |
| 1784 */ | |
| 1785 (time1, time2)) | |
| 1786 { | |
| 1787 EMACS_INT t1, t2; | |
| 1788 | |
| 1789 CHECK_NATNUM (time1); | |
| 1790 CHECK_NATNUM (time2); | |
| 1791 t1 = XINT (time1); | |
| 1792 t2 = XINT (time2); | |
| 1793 | |
| 1794 if (t1 < t2) | |
| 1795 return t2 - t1 < TIMESTAMP_HALFSPACE ? Qt : Qnil; | |
| 1796 else | |
| 1797 return t1 - t2 < TIMESTAMP_HALFSPACE ? Qnil : Qt; | |
| 1798 } | |
| 1799 | |
| 934 | 1800 #define CHECK_EVENT_TYPE(e,t1,sym) do { \ |
| 1801 CHECK_LIVE_EVENT (e); \ | |
| 1802 if (XEVENT_TYPE (e) != (t1)) \ | |
| 1803 e = wrong_type_argument (sym,e); \ | |
| 1804 } while (0) | |
| 1805 | |
| 1806 #define CHECK_EVENT_TYPE2(e,t1,t2,sym) do { \ | |
| 1807 CHECK_LIVE_EVENT (e); \ | |
| 1808 { \ | |
| 1809 emacs_event_type CET_type = XEVENT_TYPE (e); \ | |
| 1810 if (CET_type != (t1) && \ | |
| 1811 CET_type != (t2)) \ | |
| 1812 e = wrong_type_argument (sym,e); \ | |
| 1813 } \ | |
| 1814 } while (0) | |
| 1815 | |
| 1816 #define CHECK_EVENT_TYPE3(e,t1,t2,t3,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 CET_type != (t3)) \ | |
| 1823 e = wrong_type_argument (sym,e); \ | |
| 1824 } \ | |
| 1825 } while (0) | |
| 428 | 1826 |
| 1827 DEFUN ("event-key", Fevent_key, 1, 1, 0, /* | |
| 1828 Return the Keysym of the key-press event EVENT. | |
| 1829 This will be a character if the event is associated with one, else a symbol. | |
| 1830 */ | |
| 1831 (event)) | |
| 1832 { | |
| 1833 CHECK_EVENT_TYPE (event, key_press_event, Qkey_press_event_p); | |
| 1204 | 1834 return XEVENT_KEY_KEYSYM (event); |
| 428 | 1835 } |
| 1836 | |
| 1837 DEFUN ("event-button", Fevent_button, 1, 1, 0, /* | |
| 444 | 1838 Return the button-number of the button-press or button-release event EVENT. |
| 428 | 1839 */ |
| 1840 (event)) | |
| 1841 { | |
| 1842 CHECK_EVENT_TYPE3 (event, button_press_event, button_release_event, | |
| 1843 misc_user_event, Qbutton_event_p); | |
| 1844 #ifdef HAVE_WINDOW_SYSTEM | |
| 1204 | 1845 if (XEVENT_TYPE (event) == misc_user_event) |
| 1846 return make_int (XEVENT_MISC_USER_BUTTON (event)); | |
| 934 | 1847 else |
| 1204 | 1848 return make_int (XEVENT_BUTTON_BUTTON (event)); |
| 428 | 1849 #else /* !HAVE_WINDOW_SYSTEM */ |
| 1850 return Qzero; | |
| 1851 #endif /* !HAVE_WINDOW_SYSTEM */ | |
| 1852 } | |
| 1853 | |
| 1854 DEFUN ("event-modifier-bits", Fevent_modifier_bits, 1, 1, 0, /* | |
| 442 | 1855 Return a number representing the modifier keys and buttons which were down |
| 428 | 1856 when the given mouse or keyboard event was produced. |
| 442 | 1857 See also the function `event-modifiers'. |
| 428 | 1858 */ |
| 1859 (event)) | |
| 1860 { | |
| 1861 again: | |
| 1862 CHECK_LIVE_EVENT (event); | |
| 934 | 1863 switch (XEVENT_TYPE (event)) |
| 1864 { | |
| 1865 case key_press_event: | |
| 1204 | 1866 return make_int (XEVENT_KEY_MODIFIERS (event)); |
| 934 | 1867 case button_press_event: |
| 1868 case button_release_event: | |
| 1204 | 1869 return make_int (XEVENT_BUTTON_MODIFIERS (event)); |
| 934 | 1870 case pointer_motion_event: |
| 1204 | 1871 return make_int (XEVENT_MOTION_MODIFIERS (event)); |
| 934 | 1872 case misc_user_event: |
| 1204 | 1873 return make_int (XEVENT_MISC_USER_MODIFIERS (event)); |
| 934 | 1874 default: |
| 1875 event = wrong_type_argument (intern ("key-or-mouse-event-p"), event); | |
| 1876 goto again; | |
| 1877 } | |
| 428 | 1878 } |
| 1879 | |
| 1880 DEFUN ("event-modifiers", Fevent_modifiers, 1, 1, 0, /* | |
| 442 | 1881 Return a list of symbols, the names of the modifier keys and buttons |
| 428 | 1882 which were down when the given mouse or keyboard event was produced. |
| 442 | 1883 See also the function `event-modifier-bits'. |
| 1884 | |
| 1885 The possible symbols in the list are | |
| 1886 | |
| 1887 `shift': The Shift key. Will not appear, in general, on key events | |
| 1888 where the keysym is an ASCII character, because using Shift | |
| 1889 on such a character converts it into another character rather | |
| 1890 than actually just adding a Shift modifier. | |
| 1891 | |
| 1892 `control': The Control key. | |
| 1893 | |
| 1894 `meta': The Meta key. On PC's and PC-style keyboards, this is generally | |
| 1895 labelled \"Alt\"; Meta is a holdover from early Lisp Machines and | |
| 1896 such, propagated through the X Window System. On Sun keyboards, | |
| 1897 this key is labelled with a diamond. | |
| 1898 | |
| 1899 `alt': The \"Alt\" key. Alt is in quotes because this does not refer | |
| 1900 to what it obviously should refer to, namely the Alt key on PC | |
| 1901 keyboards. Instead, it refers to the key labelled Alt on Sun | |
| 1902 keyboards, and to no key at all on PC keyboards. | |
| 1903 | |
| 1904 `super': The Super key. Most keyboards don't have any such key, but | |
| 1905 under X Windows using `xmodmap' you can assign any key (such as | |
| 1906 an underused right-shift, right-control, or right-alt key) to | |
| 1907 this key modifier. No support currently exists under MS Windows | |
| 1908 for generating these modifiers. | |
| 1909 | |
| 1910 `hyper': The Hyper key. Works just like the Super key. | |
| 1911 | |
| 1912 `button1': The mouse buttons. This means that the specified button was held | |
| 1913 `button2': down at the time the event occurred. NOTE: For button-press | |
| 1914 `button3': events, the button that was just pressed down does NOT appear in | |
| 1915 `button4': the modifiers. | |
| 1916 `button5': | |
| 1917 | |
| 1918 Button modifiers are currently ignored when defining and looking up key and | |
| 1919 mouse strokes in keymaps. This could be changed, which would allow a user to | |
| 1920 create button-chord actions, use a button as a key modifier and do other | |
| 1921 clever things. | |
| 428 | 1922 */ |
| 1923 (event)) | |
| 1924 { | |
| 1925 int mod = XINT (Fevent_modifier_bits (event)); | |
| 1926 Lisp_Object result = Qnil; | |
| 442 | 1927 struct gcpro gcpro1; |
| 1928 | |
| 1929 GCPRO1 (result); | |
| 1930 if (mod & XEMACS_MOD_SHIFT) result = Fcons (Qshift, result); | |
| 1931 if (mod & XEMACS_MOD_ALT) result = Fcons (Qalt, result); | |
| 1932 if (mod & XEMACS_MOD_HYPER) result = Fcons (Qhyper, result); | |
| 1933 if (mod & XEMACS_MOD_SUPER) result = Fcons (Qsuper, result); | |
| 1934 if (mod & XEMACS_MOD_META) result = Fcons (Qmeta, result); | |
| 1935 if (mod & XEMACS_MOD_CONTROL) result = Fcons (Qcontrol, result); | |
| 1936 if (mod & XEMACS_MOD_BUTTON1) result = Fcons (Qbutton1, result); | |
| 1937 if (mod & XEMACS_MOD_BUTTON2) result = Fcons (Qbutton2, result); | |
| 1938 if (mod & XEMACS_MOD_BUTTON3) result = Fcons (Qbutton3, result); | |
| 1939 if (mod & XEMACS_MOD_BUTTON4) result = Fcons (Qbutton4, result); | |
| 1940 if (mod & XEMACS_MOD_BUTTON5) result = Fcons (Qbutton5, result); | |
| 1941 RETURN_UNGCPRO (Fnreverse (result)); | |
| 428 | 1942 } |
| 1943 | |
| 1944 static int | |
| 1945 event_x_y_pixel_internal (Lisp_Object event, int *x, int *y, int relative) | |
| 1946 { | |
| 1947 struct window *w; | |
| 1948 struct frame *f; | |
| 1949 | |
| 934 | 1950 if (XEVENT_TYPE (event) == pointer_motion_event) |
| 1951 { | |
| 1204 | 1952 *x = XEVENT_MOTION_X (event); |
| 1953 *y = XEVENT_MOTION_Y (event); | |
| 934 | 1954 } |
| 1955 else if (XEVENT_TYPE (event) == button_press_event || | |
| 1956 XEVENT_TYPE (event) == button_release_event) | |
| 1957 { | |
| 1204 | 1958 *x = XEVENT_BUTTON_X (event); |
| 1959 *y = XEVENT_BUTTON_Y (event); | |
| 934 | 1960 } |
| 1961 else if (XEVENT_TYPE (event) == misc_user_event) | |
| 1962 { | |
| 1204 | 1963 *x = XEVENT_MISC_USER_X (event); |
| 1964 *y = XEVENT_MISC_USER_Y (event); | |
| 934 | 1965 } |
| 1966 else | |
| 1967 return 0; | |
| 428 | 1968 f = XFRAME (EVENT_CHANNEL (XEVENT (event))); |
| 1969 | |
| 1970 if (relative) | |
| 1971 { | |
| 1972 w = find_window_by_pixel_pos (*x, *y, f->root_window); | |
| 1973 | |
| 1974 if (!w) | |
| 442 | 1975 return 1; /* #### What should really happen here? */ |
| 428 | 1976 |
| 1977 *x -= w->pixel_left; | |
| 1978 *y -= w->pixel_top; | |
| 1979 } | |
| 1980 else | |
| 1981 { | |
| 1982 *y -= FRAME_REAL_TOP_TOOLBAR_HEIGHT (f) - | |
| 1983 FRAME_REAL_TOP_TOOLBAR_BORDER_WIDTH (f); | |
| 1984 *x -= FRAME_REAL_LEFT_TOOLBAR_WIDTH (f) - | |
| 1985 FRAME_REAL_LEFT_TOOLBAR_BORDER_WIDTH (f); | |
| 1986 } | |
| 1987 | |
| 1988 return 1; | |
| 1989 } | |
| 1990 | |
| 1991 DEFUN ("event-window-x-pixel", Fevent_window_x_pixel, 1, 1, 0, /* | |
| 1992 Return the X position in pixels of mouse event EVENT. | |
| 1993 The value returned is relative to the window the event occurred in. | |
| 1994 This will signal an error if the event is not a mouse event. | |
| 1995 See also `mouse-event-p' and `event-x-pixel'. | |
| 1996 */ | |
| 1997 (event)) | |
| 1998 { | |
| 1999 int x, y; | |
| 2000 | |
| 2001 CHECK_LIVE_EVENT (event); | |
| 2002 | |
| 2003 if (!event_x_y_pixel_internal (event, &x, &y, 1)) | |
| 2004 return wrong_type_argument (Qmouse_event_p, event); | |
| 2005 else | |
| 2006 return make_int (x); | |
| 2007 } | |
| 2008 | |
| 2009 DEFUN ("event-window-y-pixel", Fevent_window_y_pixel, 1, 1, 0, /* | |
| 2010 Return the Y position in pixels of mouse event EVENT. | |
| 2011 The value returned is relative to the window the event occurred in. | |
| 2012 This will signal an error if the event is not a mouse event. | |
| 2013 See also `mouse-event-p' and `event-y-pixel'. | |
| 2014 */ | |
| 2015 (event)) | |
| 2016 { | |
| 2017 int x, y; | |
| 2018 | |
| 2019 CHECK_LIVE_EVENT (event); | |
| 2020 | |
| 2021 if (!event_x_y_pixel_internal (event, &x, &y, 1)) | |
| 2022 return wrong_type_argument (Qmouse_event_p, event); | |
| 2023 else | |
| 2024 return make_int (y); | |
| 2025 } | |
| 2026 | |
| 2027 DEFUN ("event-x-pixel", Fevent_x_pixel, 1, 1, 0, /* | |
| 2028 Return the X position in pixels of mouse event EVENT. | |
| 2029 The value returned is relative to the frame the event occurred in. | |
| 2030 This will signal an error if the event is not a mouse event. | |
| 2031 See also `mouse-event-p' and `event-window-x-pixel'. | |
| 2032 */ | |
| 2033 (event)) | |
| 2034 { | |
| 2035 int x, y; | |
| 2036 | |
| 2037 CHECK_LIVE_EVENT (event); | |
| 2038 | |
| 2039 if (!event_x_y_pixel_internal (event, &x, &y, 0)) | |
| 2040 return wrong_type_argument (Qmouse_event_p, event); | |
| 2041 else | |
| 2042 return make_int (x); | |
| 2043 } | |
| 2044 | |
| 2045 DEFUN ("event-y-pixel", Fevent_y_pixel, 1, 1, 0, /* | |
| 2046 Return the Y position in pixels of mouse event EVENT. | |
| 2047 The value returned is relative to the frame the event occurred in. | |
| 2048 This will signal an error if the event is not a mouse event. | |
| 2049 See also `mouse-event-p' `event-window-y-pixel'. | |
| 2050 */ | |
| 2051 (event)) | |
| 2052 { | |
| 2053 int x, y; | |
| 2054 | |
| 2055 CHECK_LIVE_EVENT (event); | |
| 2056 | |
| 2057 if (!event_x_y_pixel_internal (event, &x, &y, 0)) | |
| 2058 return wrong_type_argument (Qmouse_event_p, event); | |
| 2059 else | |
| 2060 return make_int (y); | |
| 2061 } | |
| 2062 | |
| 2063 /* Given an event, return a value: | |
| 2064 | |
| 2065 OVER_TOOLBAR: over one of the 4 frame toolbars | |
| 2066 OVER_MODELINE: over a modeline | |
| 2067 OVER_BORDER: over an internal border | |
| 2068 OVER_NOTHING: over the text area, but not over text | |
| 2069 OVER_OUTSIDE: outside of the frame border | |
| 2070 OVER_TEXT: over text in the text area | |
| 2071 OVER_V_DIVIDER: over windows vertical divider | |
| 2072 | |
| 2073 and return: | |
| 2074 | |
| 2075 The X char position in CHAR_X, if not a null pointer. | |
| 2076 The Y char position in CHAR_Y, if not a null pointer. | |
| 2077 (These last two values are relative to the window the event is over.) | |
| 2078 The window it's over in W, if not a null pointer. | |
| 2079 The buffer position it's over in BUFP, if not a null pointer. | |
| 2080 The closest buffer position in CLOSEST, if not a null pointer. | |
| 2081 | |
| 2082 OBJ_X, OBJ_Y, OBJ1, and OBJ2 are as in pixel_to_glyph_translation(). | |
| 2083 */ | |
| 2084 | |
| 2085 static int | |
| 2086 event_pixel_translation (Lisp_Object event, int *char_x, int *char_y, | |
| 2087 int *obj_x, int *obj_y, | |
| 665 | 2088 struct window **w, Charbpos *bufp, Charbpos *closest, |
| 428 | 2089 Charcount *modeline_closest, |
| 2090 Lisp_Object *obj1, Lisp_Object *obj2) | |
| 2091 { | |
| 2092 int pix_x = 0; | |
| 2093 int pix_y = 0; | |
| 2094 int result; | |
| 2095 Lisp_Object frame; | |
| 2096 | |
| 2097 int ret_x, ret_y, ret_obj_x, ret_obj_y; | |
| 2098 struct window *ret_w; | |
| 665 | 2099 Charbpos ret_bufp, ret_closest; |
| 428 | 2100 Charcount ret_modeline_closest; |
| 2101 Lisp_Object ret_obj1, ret_obj2; | |
| 2102 | |
| 2103 CHECK_LIVE_EVENT (event); | |
| 934 | 2104 frame = XEVENT_CHANNEL (event); |
| 2105 switch (XEVENT_TYPE (event)) | |
| 2106 { | |
| 2107 case pointer_motion_event : | |
| 1204 | 2108 pix_x = XEVENT_MOTION_X (event); |
| 2109 pix_y = XEVENT_MOTION_Y (event); | |
| 934 | 2110 break; |
| 2111 case button_press_event : | |
| 2112 case button_release_event : | |
| 1204 | 2113 pix_x = XEVENT_BUTTON_X (event); |
| 2114 pix_y = XEVENT_BUTTON_Y (event); | |
| 934 | 2115 break; |
| 2116 case misc_user_event : | |
| 1204 | 2117 pix_x = XEVENT_MISC_USER_X (event); |
| 2118 pix_y = XEVENT_MISC_USER_Y (event); | |
| 934 | 2119 break; |
| 2120 default: | |
| 2121 dead_wrong_type_argument (Qmouse_event_p, event); | |
| 2122 } | |
| 428 | 2123 |
| 2124 result = pixel_to_glyph_translation (XFRAME (frame), pix_x, pix_y, | |
| 2125 &ret_x, &ret_y, &ret_obj_x, &ret_obj_y, | |
| 2126 &ret_w, &ret_bufp, &ret_closest, | |
| 2127 &ret_modeline_closest, | |
| 2128 &ret_obj1, &ret_obj2); | |
| 2129 | |
| 2130 if (result == OVER_NOTHING || result == OVER_OUTSIDE) | |
| 2131 ret_bufp = 0; | |
| 2132 else if (ret_w && NILP (ret_w->buffer)) | |
| 2133 /* Why does this happen? (Does it still happen?) | |
| 2134 I guess the window has gotten reused as a non-leaf... */ | |
| 2135 ret_w = 0; | |
| 2136 | |
| 2137 /* #### pixel_to_glyph_translation() sometimes returns garbage... | |
| 2138 The word has type Lisp_Type_Record (presumably meaning `extent') but the | |
| 2139 pointer points to random memory, often filled with 0, sometimes not. | |
| 2140 */ | |
| 2141 /* #### Chuck, do we still need this crap? */ | |
| 2142 if (!NILP (ret_obj1) && !(GLYPHP (ret_obj1) | |
| 2143 #ifdef HAVE_TOOLBARS | |
| 2144 || TOOLBAR_BUTTONP (ret_obj1) | |
| 2145 #endif | |
| 2146 )) | |
| 2500 | 2147 ABORT (); |
| 428 | 2148 if (!NILP (ret_obj2) && !(EXTENTP (ret_obj2) || CONSP (ret_obj2))) |
| 2500 | 2149 ABORT (); |
| 428 | 2150 |
| 2151 if (char_x) | |
| 2152 *char_x = ret_x; | |
| 2153 if (char_y) | |
| 2154 *char_y = ret_y; | |
| 2155 if (obj_x) | |
| 2156 *obj_x = ret_obj_x; | |
| 2157 if (obj_y) | |
| 2158 *obj_y = ret_obj_y; | |
| 2159 if (w) | |
| 2160 *w = ret_w; | |
| 2161 if (bufp) | |
| 2162 *bufp = ret_bufp; | |
| 2163 if (closest) | |
| 2164 *closest = ret_closest; | |
| 2165 if (modeline_closest) | |
| 2166 *modeline_closest = ret_modeline_closest; | |
| 2167 if (obj1) | |
| 2168 *obj1 = ret_obj1; | |
| 2169 if (obj2) | |
| 2170 *obj2 = ret_obj2; | |
| 2171 | |
| 2172 return result; | |
| 2173 } | |
| 2174 | |
| 2175 DEFUN ("event-over-text-area-p", Fevent_over_text_area_p, 1, 1, 0, /* | |
| 2176 Return t if the mouse event EVENT occurred over the text area of a window. | |
| 2177 The modeline is not considered to be part of the text area. | |
| 2178 */ | |
| 2179 (event)) | |
| 2180 { | |
| 2181 int result = event_pixel_translation (event, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0); | |
| 2182 | |
| 2183 return result == OVER_TEXT || result == OVER_NOTHING ? Qt : Qnil; | |
| 2184 } | |
| 2185 | |
| 2186 DEFUN ("event-over-modeline-p", Fevent_over_modeline_p, 1, 1, 0, /* | |
| 2187 Return t if the mouse event EVENT occurred over the modeline of a window. | |
| 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_MODELINE ? Qt : Qnil; | |
| 2194 } | |
| 2195 | |
| 2196 DEFUN ("event-over-border-p", Fevent_over_border_p, 1, 1, 0, /* | |
| 2197 Return t if the mouse event EVENT occurred over an internal border. | |
| 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_BORDER ? Qt : Qnil; | |
| 2204 } | |
| 2205 | |
| 2206 DEFUN ("event-over-toolbar-p", Fevent_over_toolbar_p, 1, 1, 0, /* | |
| 2207 Return t if the mouse event EVENT occurred over a toolbar. | |
| 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_TOOLBAR ? Qt : Qnil; | |
| 2214 } | |
| 2215 | |
| 2216 DEFUN ("event-over-vertical-divider-p", Fevent_over_vertical_divider_p, 1, 1, 0, /* | |
| 2217 Return t if the mouse event EVENT occurred over a window divider. | |
| 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_V_DIVIDER ? Qt : Qnil; | |
| 2224 } | |
| 2225 | |
| 2226 struct console * | |
| 2227 event_console_or_selected (Lisp_Object event) | |
| 2228 { | |
| 2229 Lisp_Object channel = EVENT_CHANNEL (XEVENT (event)); | |
| 2230 Lisp_Object console = CDFW_CONSOLE (channel); | |
| 2231 | |
| 2232 if (NILP (console)) | |
| 2233 console = Vselected_console; | |
| 2234 | |
| 2235 return XCONSOLE (console); | |
| 2236 } | |
| 2237 | |
| 2238 DEFUN ("event-channel", Fevent_channel, 1, 1, 0, /* | |
| 2239 Return the channel that the event EVENT occurred on. | |
| 2240 This will be a frame, device, console, or nil for some types | |
| 2241 of events (e.g. eval events). | |
| 2242 */ | |
| 2243 (event)) | |
| 2244 { | |
| 2245 CHECK_LIVE_EVENT (event); | |
| 2246 return EVENT_CHANNEL (XEVENT (event)); | |
| 2247 } | |
| 2248 | |
| 2249 DEFUN ("event-window", Fevent_window, 1, 1, 0, /* | |
| 2250 Return the window over which mouse event EVENT occurred. | |
| 2251 This may be nil if the event occurred in the border or over a toolbar. | |
| 2252 The modeline is considered to be within the window it describes. | |
| 2253 */ | |
| 2254 (event)) | |
| 2255 { | |
| 2256 struct window *w; | |
| 2257 | |
| 2258 event_pixel_translation (event, 0, 0, 0, 0, &w, 0, 0, 0, 0, 0); | |
| 2259 | |
| 2260 if (!w) | |
| 2261 return Qnil; | |
| 2262 else | |
| 2263 { | |
| 793 | 2264 return wrap_window (w); |
| 428 | 2265 } |
| 2266 } | |
| 2267 | |
| 2268 DEFUN ("event-point", Fevent_point, 1, 1, 0, /* | |
| 2269 Return the character position of the mouse event EVENT. | |
| 2270 If the event did not occur over a window, or did not occur over text, | |
| 2271 then this returns nil. Otherwise, it returns a position in the buffer | |
| 2272 visible in the event's window. | |
| 2273 */ | |
| 2274 (event)) | |
| 2275 { | |
| 665 | 2276 Charbpos bufp; |
| 428 | 2277 struct window *w; |
| 2278 | |
| 2279 event_pixel_translation (event, 0, 0, 0, 0, &w, &bufp, 0, 0, 0, 0); | |
| 2280 | |
| 2281 return w && bufp ? make_int (bufp) : Qnil; | |
| 2282 } | |
| 2283 | |
| 2284 DEFUN ("event-closest-point", Fevent_closest_point, 1, 1, 0, /* | |
| 2285 Return the character position closest to the mouse event EVENT. | |
| 2286 If the event did not occur over a window or over text, return the | |
| 2287 closest point to the location of the event. If the Y pixel position | |
| 2288 overlaps a window and the X pixel position is to the left of that | |
| 2289 window, the closest point is the beginning of the line containing the | |
| 2290 Y position. If the Y pixel position overlaps a window and the X pixel | |
| 2291 position is to the right of that window, the closest point is the end | |
| 2292 of the line containing the Y position. If the Y pixel position is | |
| 2293 above a window, return 0. If it is below the last character in a window, | |
| 2294 return the value of (window-end). | |
| 2295 */ | |
| 2296 (event)) | |
| 2297 { | |
| 665 | 2298 Charbpos bufp; |
| 428 | 2299 |
| 2300 event_pixel_translation (event, 0, 0, 0, 0, 0, 0, &bufp, 0, 0, 0); | |
| 2301 | |
| 2302 return bufp ? make_int (bufp) : Qnil; | |
| 2303 } | |
| 2304 | |
| 2305 DEFUN ("event-x", Fevent_x, 1, 1, 0, /* | |
| 2306 Return the X position of the mouse event EVENT in characters. | |
| 2307 This is relative to the window the event occurred over. | |
| 2308 */ | |
| 2309 (event)) | |
| 2310 { | |
| 2311 int char_x; | |
| 2312 | |
| 2313 event_pixel_translation (event, &char_x, 0, 0, 0, 0, 0, 0, 0, 0, 0); | |
| 2314 | |
| 2315 return make_int (char_x); | |
| 2316 } | |
| 2317 | |
| 2318 DEFUN ("event-y", Fevent_y, 1, 1, 0, /* | |
| 2319 Return the Y position of the mouse event EVENT in characters. | |
| 2320 This is relative to the window the event occurred over. | |
| 2321 */ | |
| 2322 (event)) | |
| 2323 { | |
| 2324 int char_y; | |
| 2325 | |
| 2326 event_pixel_translation (event, 0, &char_y, 0, 0, 0, 0, 0, 0, 0, 0); | |
| 2327 | |
| 2328 return make_int (char_y); | |
| 2329 } | |
| 2330 | |
| 2331 DEFUN ("event-modeline-position", Fevent_modeline_position, 1, 1, 0, /* | |
| 2332 Return the character position in the modeline that EVENT occurred over. | |
| 2333 EVENT should be a mouse event. If EVENT did not occur over a modeline, | |
| 2334 nil is returned. You can determine the actual character that the | |
| 2335 event occurred over by looking in `generated-modeline-string' at the | |
| 2336 returned character position. Note that `generated-modeline-string' | |
| 2337 is buffer-local, and you must use EVENT's buffer when retrieving | |
| 2338 `generated-modeline-string' in order to get accurate results. | |
| 2339 */ | |
| 2340 (event)) | |
| 2341 { | |
| 2342 Charcount mbufp; | |
| 2343 int where; | |
| 2344 | |
| 2345 where = event_pixel_translation (event, 0, 0, 0, 0, 0, 0, 0, &mbufp, 0, 0); | |
| 2346 | |
| 2347 return (mbufp < 0 || where != OVER_MODELINE) ? Qnil : make_int (mbufp); | |
| 2348 } | |
| 2349 | |
| 2350 DEFUN ("event-glyph", Fevent_glyph, 1, 1, 0, /* | |
| 2351 Return the glyph that the mouse event EVENT occurred over, or nil. | |
| 2352 */ | |
| 2353 (event)) | |
| 2354 { | |
| 2355 Lisp_Object glyph; | |
| 2356 struct window *w; | |
| 2357 | |
| 2358 event_pixel_translation (event, 0, 0, 0, 0, &w, 0, 0, 0, &glyph, 0); | |
| 2359 | |
| 2360 return w && GLYPHP (glyph) ? glyph : Qnil; | |
| 2361 } | |
| 2362 | |
| 2363 DEFUN ("event-glyph-extent", Fevent_glyph_extent, 1, 1, 0, /* | |
| 2364 Return the extent of the glyph that the mouse event EVENT occurred over. | |
| 2365 If the event did not occur over a glyph, nil is returned. | |
| 2366 */ | |
| 2367 (event)) | |
| 2368 { | |
| 2369 Lisp_Object extent; | |
| 2370 struct window *w; | |
| 2371 | |
| 2372 event_pixel_translation (event, 0, 0, 0, 0, &w, 0, 0, 0, 0, &extent); | |
| 2373 | |
| 2374 return w && EXTENTP (extent) ? extent : Qnil; | |
| 2375 } | |
| 2376 | |
| 2377 DEFUN ("event-glyph-x-pixel", Fevent_glyph_x_pixel, 1, 1, 0, /* | |
| 2378 Return the X pixel position of EVENT relative to the glyph it occurred over. | |
| 2379 EVENT should be a mouse event. If the event did not occur over a glyph, | |
| 2380 nil is returned. | |
| 2381 */ | |
| 2382 (event)) | |
| 2383 { | |
| 2384 Lisp_Object extent; | |
| 2385 struct window *w; | |
| 2386 int obj_x; | |
| 2387 | |
| 2388 event_pixel_translation (event, 0, 0, &obj_x, 0, &w, 0, 0, 0, 0, &extent); | |
| 2389 | |
| 2390 return w && EXTENTP (extent) ? make_int (obj_x) : Qnil; | |
| 2391 } | |
| 2392 | |
| 2393 DEFUN ("event-glyph-y-pixel", Fevent_glyph_y_pixel, 1, 1, 0, /* | |
| 2394 Return the Y pixel position of EVENT relative to the glyph it occurred over. | |
| 2395 EVENT should be a mouse event. If the event did not occur over a glyph, | |
| 2396 nil is returned. | |
| 2397 */ | |
| 2398 (event)) | |
| 2399 { | |
| 2400 Lisp_Object extent; | |
| 2401 struct window *w; | |
| 2402 int obj_y; | |
| 2403 | |
| 2404 event_pixel_translation (event, 0, 0, 0, &obj_y, &w, 0, 0, 0, 0, &extent); | |
| 2405 | |
| 2406 return w && EXTENTP (extent) ? make_int (obj_y) : Qnil; | |
| 2407 } | |
| 2408 | |
| 2409 DEFUN ("event-toolbar-button", Fevent_toolbar_button, 1, 1, 0, /* | |
| 2410 Return the toolbar button that the mouse event EVENT occurred over. | |
| 2411 If the event did not occur over a toolbar button, nil is returned. | |
| 2412 */ | |
| 2340 | 2413 (USED_IF_TOOLBARS (event))) |
| 428 | 2414 { |
| 2415 #ifdef HAVE_TOOLBARS | |
| 2416 Lisp_Object button; | |
| 2417 | |
| 2418 int result = event_pixel_translation (event, 0, 0, 0, 0, 0, 0, 0, 0, &button, 0); | |
| 2419 | |
| 2420 return result == OVER_TOOLBAR && TOOLBAR_BUTTONP (button) ? button : Qnil; | |
| 2421 #else | |
| 2422 return Qnil; | |
| 2423 #endif | |
| 2424 } | |
| 2425 | |
| 2426 DEFUN ("event-process", Fevent_process, 1, 1, 0, /* | |
| 444 | 2427 Return the process of the process-output event EVENT. |
| 428 | 2428 */ |
| 2429 (event)) | |
| 2430 { | |
| 934 | 2431 CHECK_EVENT_TYPE (event, process_event, Qprocess_event_p); |
| 1204 | 2432 return XEVENT_PROCESS_PROCESS (event); |
| 428 | 2433 } |
| 2434 | |
| 2435 DEFUN ("event-function", Fevent_function, 1, 1, 0, /* | |
| 2436 Return the callback function of EVENT. | |
| 2437 EVENT should be a timeout, misc-user, or eval event. | |
| 2438 */ | |
| 2439 (event)) | |
| 2440 { | |
| 2441 again: | |
| 2442 CHECK_LIVE_EVENT (event); | |
| 934 | 2443 switch (XEVENT_TYPE (event)) |
| 2444 { | |
| 2445 case timeout_event: | |
| 1204 | 2446 return XEVENT_TIMEOUT_FUNCTION (event); |
| 934 | 2447 case misc_user_event: |
| 1204 | 2448 return XEVENT_MISC_USER_FUNCTION (event); |
| 934 | 2449 case eval_event: |
| 1204 | 2450 return XEVENT_EVAL_FUNCTION (event); |
| 934 | 2451 default: |
| 2452 event = wrong_type_argument (intern ("timeout-or-eval-event-p"), event); | |
| 2453 goto again; | |
| 2454 } | |
| 428 | 2455 } |
| 2456 | |
| 2457 DEFUN ("event-object", Fevent_object, 1, 1, 0, /* | |
| 2458 Return the callback function argument of EVENT. | |
| 2459 EVENT should be a timeout, misc-user, or eval event. | |
| 2460 */ | |
| 2461 (event)) | |
| 2462 { | |
| 2463 again: | |
| 2464 CHECK_LIVE_EVENT (event); | |
| 934 | 2465 switch (XEVENT_TYPE (event)) |
| 2466 { | |
| 2467 case timeout_event: | |
| 1204 | 2468 return XEVENT_TIMEOUT_OBJECT (event); |
| 934 | 2469 case misc_user_event: |
| 1204 | 2470 return XEVENT_MISC_USER_OBJECT (event); |
| 934 | 2471 case eval_event: |
| 1204 | 2472 return XEVENT_EVAL_OBJECT (event); |
| 934 | 2473 default: |
| 2474 event = wrong_type_argument (intern ("timeout-or-eval-event-p"), event); | |
| 2475 goto again; | |
| 2476 } | |
| 428 | 2477 } |
| 2478 | |
| 2479 DEFUN ("event-properties", Fevent_properties, 1, 1, 0, /* | |
| 2480 Return a list of all of the properties of EVENT. | |
| 2481 This is in the form of a property list (alternating keyword/value pairs). | |
| 2482 */ | |
| 2483 (event)) | |
| 2484 { | |
| 2485 Lisp_Object props = Qnil; | |
| 440 | 2486 Lisp_Event *e; |
| 428 | 2487 struct gcpro gcpro1; |
| 2488 | |
| 2489 CHECK_LIVE_EVENT (event); | |
| 2490 e = XEVENT (event); | |
| 2491 GCPRO1 (props); | |
| 2492 | |
| 2493 props = cons3 (Qtimestamp, Fevent_timestamp (event), props); | |
| 2494 | |
| 934 | 2495 switch (EVENT_TYPE (e)) |
| 428 | 2496 { |
| 2500 | 2497 default: ABORT (); |
| 428 | 2498 |
| 2499 case process_event: | |
| 1204 | 2500 props = cons3 (Qprocess, EVENT_PROCESS_PROCESS (e), props); |
| 428 | 2501 break; |
| 2502 | |
| 2503 case timeout_event: | |
| 2504 props = cons3 (Qobject, Fevent_object (event), props); | |
| 2505 props = cons3 (Qfunction, Fevent_function (event), props); | |
| 1204 | 2506 props = cons3 (Qid, make_int (EVENT_TIMEOUT_ID_NUMBER (e)), props); |
| 428 | 2507 break; |
| 2508 | |
| 2509 case key_press_event: | |
| 2510 props = cons3 (Qmodifiers, Fevent_modifiers (event), props); | |
| 2511 props = cons3 (Qkey, Fevent_key (event), props); | |
| 2512 break; | |
| 2513 | |
| 2514 case button_press_event: | |
| 2515 case button_release_event: | |
| 2516 props = cons3 (Qy, Fevent_y_pixel (event), props); | |
| 2517 props = cons3 (Qx, Fevent_x_pixel (event), props); | |
| 2518 props = cons3 (Qmodifiers, Fevent_modifiers (event), props); | |
| 2519 props = cons3 (Qbutton, Fevent_button (event), props); | |
| 2520 break; | |
| 2521 | |
| 2522 case pointer_motion_event: | |
| 2523 props = cons3 (Qmodifiers, Fevent_modifiers (event), props); | |
| 2524 props = cons3 (Qy, Fevent_y_pixel (event), props); | |
| 2525 props = cons3 (Qx, Fevent_x_pixel (event), props); | |
| 2526 break; | |
| 2527 | |
| 2528 case misc_user_event: | |
| 2529 props = cons3 (Qobject, Fevent_object (event), props); | |
| 2530 props = cons3 (Qfunction, Fevent_function (event), props); | |
| 2531 props = cons3 (Qy, Fevent_y_pixel (event), props); | |
| 2532 props = cons3 (Qx, Fevent_x_pixel (event), props); | |
| 2533 props = cons3 (Qmodifiers, Fevent_modifiers (event), props); | |
| 2534 props = cons3 (Qbutton, Fevent_button (event), props); | |
| 2535 break; | |
| 2536 | |
| 2537 case eval_event: | |
| 2538 props = cons3 (Qobject, Fevent_object (event), props); | |
| 2539 props = cons3 (Qfunction, Fevent_function (event), props); | |
| 2540 break; | |
| 2541 | |
| 2542 case magic_eval_event: | |
| 2543 case magic_event: | |
| 2544 break; | |
| 2545 | |
| 2546 case empty_event: | |
| 2547 RETURN_UNGCPRO (Qnil); | |
| 2548 break; | |
| 2549 } | |
| 2550 | |
| 2551 props = cons3 (Qchannel, Fevent_channel (event), props); | |
| 2552 UNGCPRO; | |
| 2553 | |
| 2554 return props; | |
| 2555 } | |
| 2556 | |
| 2557 | |
| 2558 /************************************************************************/ | |
| 2559 /* initialization */ | |
| 2560 /************************************************************************/ | |
| 2561 | |
| 2562 void | |
| 2563 syms_of_events (void) | |
| 2564 { | |
|
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2565 INIT_LISP_OBJECT (event); |
| 1204 | 2566 #ifdef EVENT_DATA_AS_OBJECTS |
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2567 INIT_LISP_OBJECT (key_data); |
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2568 INIT_LISP_OBJECT (button_data); |
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2569 INIT_LISP_OBJECT (motion_data); |
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2570 INIT_LISP_OBJECT (process_data); |
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2571 INIT_LISP_OBJECT (timeout_data); |
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2572 INIT_LISP_OBJECT (eval_data); |
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2573 INIT_LISP_OBJECT (misc_user_data); |
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2574 INIT_LISP_OBJECT (magic_eval_data); |
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2575 INIT_LISP_OBJECT (magic_data); |
| 1204 | 2576 #endif /* EVENT_DATA_AS_OBJECTS */ |
| 442 | 2577 |
| 428 | 2578 DEFSUBR (Fcharacter_to_event); |
| 2579 DEFSUBR (Fevent_to_character); | |
| 2580 | |
| 2581 DEFSUBR (Fmake_event); | |
| 2582 DEFSUBR (Fdeallocate_event); | |
| 2583 DEFSUBR (Fcopy_event); | |
| 2584 DEFSUBR (Feventp); | |
| 2585 DEFSUBR (Fevent_live_p); | |
| 2586 DEFSUBR (Fevent_type); | |
| 2587 DEFSUBR (Fevent_properties); | |
| 2588 | |
| 2589 DEFSUBR (Fevent_timestamp); | |
| 442 | 2590 DEFSUBR (Fevent_timestamp_lessp); |
| 428 | 2591 DEFSUBR (Fevent_key); |
| 2592 DEFSUBR (Fevent_button); | |
| 2593 DEFSUBR (Fevent_modifier_bits); | |
| 2594 DEFSUBR (Fevent_modifiers); | |
| 2595 DEFSUBR (Fevent_x_pixel); | |
| 2596 DEFSUBR (Fevent_y_pixel); | |
| 2597 DEFSUBR (Fevent_window_x_pixel); | |
| 2598 DEFSUBR (Fevent_window_y_pixel); | |
| 2599 DEFSUBR (Fevent_over_text_area_p); | |
| 2600 DEFSUBR (Fevent_over_modeline_p); | |
| 2601 DEFSUBR (Fevent_over_border_p); | |
| 2602 DEFSUBR (Fevent_over_toolbar_p); | |
| 2603 DEFSUBR (Fevent_over_vertical_divider_p); | |
| 2604 DEFSUBR (Fevent_channel); | |
| 2605 DEFSUBR (Fevent_window); | |
| 2606 DEFSUBR (Fevent_point); | |
| 2607 DEFSUBR (Fevent_closest_point); | |
| 2608 DEFSUBR (Fevent_x); | |
| 2609 DEFSUBR (Fevent_y); | |
| 2610 DEFSUBR (Fevent_modeline_position); | |
| 2611 DEFSUBR (Fevent_glyph); | |
| 2612 DEFSUBR (Fevent_glyph_extent); | |
| 2613 DEFSUBR (Fevent_glyph_x_pixel); | |
| 2614 DEFSUBR (Fevent_glyph_y_pixel); | |
| 2615 DEFSUBR (Fevent_toolbar_button); | |
| 2616 DEFSUBR (Fevent_process); | |
| 2617 DEFSUBR (Fevent_function); | |
| 2618 DEFSUBR (Fevent_object); | |
| 2619 | |
| 563 | 2620 DEFSYMBOL (Qeventp); |
| 2621 DEFSYMBOL (Qevent_live_p); | |
| 2622 DEFSYMBOL (Qkey_press_event_p); | |
| 2623 DEFSYMBOL (Qbutton_event_p); | |
| 2624 DEFSYMBOL (Qmouse_event_p); | |
| 2625 DEFSYMBOL (Qprocess_event_p); | |
| 2626 DEFSYMBOL (Qkey_press); | |
| 2627 DEFSYMBOL (Qbutton_press); | |
| 2628 DEFSYMBOL (Qbutton_release); | |
| 2629 DEFSYMBOL (Qmisc_user); | |
| 2828 | 2630 DEFSYMBOL (Qcharacter_of_keysym); |
| 563 | 2631 DEFSYMBOL (Qascii_character); |
| 428 | 2632 |
| 2633 defsymbol (&QKbackspace, "backspace"); | |
| 2634 defsymbol (&QKtab, "tab"); | |
| 2635 defsymbol (&QKlinefeed, "linefeed"); | |
| 2636 defsymbol (&QKreturn, "return"); | |
| 2637 defsymbol (&QKescape, "escape"); | |
| 2638 defsymbol (&QKspace, "space"); | |
| 2639 defsymbol (&QKdelete, "delete"); | |
| 2640 } | |
| 2641 | |
| 2642 | |
| 2643 void | |
| 2644 reinit_vars_of_events (void) | |
| 2645 { | |
| 2646 Vevent_resource = Qnil; | |
| 3092 | 2647 #ifdef NEW_GC |
| 2648 staticpro (&Vevent_resource); | |
| 2649 #endif /* NEW_GC */ | |
| 428 | 2650 } |
| 2651 | |
| 2652 void | |
| 2653 vars_of_events (void) | |
| 2654 { | |
| 2655 } |