Mercurial > hg > xemacs-beta
annotate src/events.c @ 5464:e79916901603 r21-5-30
XEmacs 21.5.30 "garlic" is released.
| author | Stephen J. Turnbull <stephen@xemacs.org> |
|---|---|
| date | Wed, 27 Apr 2011 01:24:28 +0900 |
| parents | c096d8051f89 |
| children | 8d29f1c4bb98 |
| 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. | |
| 5046 | 4 Copyright (C) 2001, 2002, 2005, 2010 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 |
| 428 | 44 /* Where old events go when they are explicitly deallocated. |
| 45 The event chain here is cut loose before GC, so these will be freed | |
| 46 eventually. | |
| 47 */ | |
| 48 static Lisp_Object Vevent_resource; | |
| 49 | |
| 50 Lisp_Object Qeventp; | |
| 51 Lisp_Object Qevent_live_p; | |
| 52 Lisp_Object Qkey_press_event_p; | |
| 53 Lisp_Object Qbutton_event_p; | |
| 54 Lisp_Object Qmouse_event_p; | |
| 55 Lisp_Object Qprocess_event_p; | |
| 56 | |
| 57 Lisp_Object Qkey_press, Qbutton_press, Qbutton_release, Qmisc_user; | |
| 2828 | 58 Lisp_Object Qcharacter_of_keysym, Qascii_character; |
| 428 | 59 |
| 771 | 60 |
| 61 /************************************************************************/ | |
| 62 /* definition of event object */ | |
| 63 /************************************************************************/ | |
| 428 | 64 |
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65 /* #### Ad-hoc hack. Should be an object method. */ |
| 428 | 66 void |
| 67 clear_event_resource (void) | |
| 68 { | |
| 69 Vevent_resource = Qnil; | |
| 70 } | |
| 71 | |
| 934 | 72 /* Make sure we lose quickly if we try to use this event */ |
| 73 static void | |
| 74 deinitialize_event (Lisp_Object ev) | |
| 75 { | |
| 76 Lisp_Event *event = XEVENT (ev); | |
| 77 | |
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78 deadbeef_memory ((Rawbyte *) event + sizeof (event->lheader), |
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79 sizeof (*event) - sizeof (event->lheader)); |
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80 |
| 934 | 81 set_event_type (event, dead_event); |
| 82 SET_EVENT_CHANNEL (event, Qnil); | |
| 428 | 83 XSET_EVENT_NEXT (ev, Qnil); |
| 84 } | |
| 85 | |
| 86 /* Set everything to zero or nil so that it's predictable. */ | |
| 87 void | |
| 440 | 88 zero_event (Lisp_Event *e) |
| 428 | 89 { |
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90 zero_nonsized_lisp_object (wrap_event (e)); |
| 1204 | 91 set_event_type (e, empty_event); |
| 92 SET_EVENT_CHANNEL (e, Qnil); | |
| 93 SET_EVENT_NEXT (e, Qnil); | |
| 428 | 94 } |
| 95 | |
| 1204 | 96 static const struct memory_description key_data_description_1 [] = { |
| 97 { XD_LISP_OBJECT, offsetof (struct Lisp_Key_Data, keysym) }, | |
| 98 { XD_END } | |
| 99 }; | |
| 100 | |
| 101 static const struct sized_memory_description key_data_description = { | |
| 102 sizeof (Lisp_Key_Data), key_data_description_1 | |
| 103 }; | |
| 104 | |
| 105 static const struct memory_description button_data_description_1 [] = { | |
| 106 { XD_END } | |
| 107 }; | |
| 108 | |
| 109 static const struct sized_memory_description button_data_description = { | |
| 110 sizeof (Lisp_Button_Data), button_data_description_1 | |
| 111 }; | |
| 112 | |
| 113 static const struct memory_description motion_data_description_1 [] = { | |
| 114 { XD_END } | |
| 115 }; | |
| 116 | |
| 117 static const struct sized_memory_description motion_data_description = { | |
| 118 sizeof (Lisp_Motion_Data), motion_data_description_1 | |
| 119 }; | |
| 120 | |
| 121 static const struct memory_description process_data_description_1 [] = { | |
| 122 { XD_LISP_OBJECT, offsetof (struct Lisp_Process_Data, process) }, | |
| 123 { XD_END } | |
| 124 }; | |
| 125 | |
| 126 static const struct sized_memory_description process_data_description = { | |
| 127 sizeof (Lisp_Process_Data), process_data_description_1 | |
| 128 }; | |
| 129 | |
| 130 static const struct memory_description timeout_data_description_1 [] = { | |
| 131 { XD_LISP_OBJECT, offsetof (struct Lisp_Timeout_Data, function) }, | |
| 132 { XD_LISP_OBJECT, offsetof (struct Lisp_Timeout_Data, object) }, | |
| 133 { XD_END } | |
| 134 }; | |
| 135 | |
| 136 static const struct sized_memory_description timeout_data_description = { | |
| 137 sizeof (Lisp_Timeout_Data), timeout_data_description_1 | |
| 138 }; | |
| 139 | |
| 140 static const struct memory_description eval_data_description_1 [] = { | |
| 141 { XD_LISP_OBJECT, offsetof (struct Lisp_Eval_Data, function) }, | |
| 142 { XD_LISP_OBJECT, offsetof (struct Lisp_Eval_Data, object) }, | |
| 143 { XD_END } | |
| 144 }; | |
| 145 | |
| 146 static const struct sized_memory_description eval_data_description = { | |
| 147 sizeof (Lisp_Eval_Data), eval_data_description_1 | |
| 148 }; | |
| 149 | |
| 150 static const struct memory_description misc_user_data_description_1 [] = { | |
| 151 { XD_LISP_OBJECT, offsetof (struct Lisp_Misc_User_Data, function) }, | |
| 152 { XD_LISP_OBJECT, offsetof (struct Lisp_Misc_User_Data, object) }, | |
| 153 { XD_END } | |
| 154 }; | |
| 155 | |
| 156 static const struct sized_memory_description misc_user_data_description = { | |
| 157 sizeof (Lisp_Misc_User_Data), misc_user_data_description_1 | |
| 158 }; | |
| 159 | |
| 160 static const struct memory_description magic_eval_data_description_1 [] = { | |
| 161 { XD_LISP_OBJECT, offsetof (struct Lisp_Magic_Eval_Data, object) }, | |
| 162 { XD_END } | |
| 163 }; | |
| 164 | |
| 165 static const struct sized_memory_description magic_eval_data_description = { | |
| 166 sizeof (Lisp_Magic_Eval_Data), magic_eval_data_description_1 | |
| 167 }; | |
| 168 | |
| 169 static const struct memory_description magic_data_description_1 [] = { | |
| 170 { XD_END } | |
| 171 }; | |
| 172 | |
| 173 static const struct sized_memory_description magic_data_description = { | |
| 174 sizeof (Lisp_Magic_Data), magic_data_description_1 | |
| 175 }; | |
| 176 | |
| 177 static const struct memory_description event_data_description_1 [] = { | |
| 2551 | 178 { XD_BLOCK_ARRAY, key_press_event, 1, { &key_data_description } }, |
| 179 { XD_BLOCK_ARRAY, button_press_event, 1, { &button_data_description } }, | |
| 180 { XD_BLOCK_ARRAY, button_release_event, 1, { &button_data_description } }, | |
| 181 { XD_BLOCK_ARRAY, pointer_motion_event, 1, { &motion_data_description } }, | |
| 182 { XD_BLOCK_ARRAY, process_event, 1, { &process_data_description } }, | |
| 183 { XD_BLOCK_ARRAY, timeout_event, 1, { &timeout_data_description } }, | |
| 184 { XD_BLOCK_ARRAY, magic_event, 1, { &magic_data_description } }, | |
| 185 { XD_BLOCK_ARRAY, magic_eval_event, 1, { &magic_eval_data_description } }, | |
| 186 { XD_BLOCK_ARRAY, eval_event, 1, { &eval_data_description } }, | |
| 187 { XD_BLOCK_ARRAY, misc_user_event, 1, { &misc_user_data_description } }, | |
| 1204 | 188 { XD_END } |
| 189 }; | |
| 190 | |
| 191 static const struct sized_memory_description event_data_description = { | |
| 192 0, event_data_description_1 | |
| 193 }; | |
| 194 | |
| 195 static const struct memory_description event_description [] = { | |
| 196 { XD_INT, offsetof (struct Lisp_Event, event_type) }, | |
| 197 { XD_LISP_OBJECT, offsetof (struct Lisp_Event, next) }, | |
| 198 { XD_LISP_OBJECT, offsetof (struct Lisp_Event, channel) }, | |
| 199 { XD_UNION, offsetof (struct Lisp_Event, event), | |
| 2551 | 200 XD_INDIRECT (0, 0), { &event_data_description } }, |
| 1204 | 201 { XD_END } |
| 202 }; | |
| 203 | |
| 204 #ifdef EVENT_DATA_AS_OBJECTS | |
| 205 | |
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206 DEFINE_NODUMP_FROB_BLOCK_LISP_OBJECT ("key-data", key_data, |
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207 0, internal_object_printer, 0, 0, 0, |
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208 key_data_description, |
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209 Lisp_Key_Data); |
| 1204 | 210 |
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211 DEFINE_NODUMP_FROB_BLOCK_LISP_OBJECT ("button-data", button_data, |
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212 0, internal_object_printer, 0, 0, 0, |
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213 button_data_description, |
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214 Lisp_Button_Data); |
| 1204 | 215 |
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216 DEFINE_NODUMP_FROB_BLOCK_LISP_OBJECT ("motion-data", motion_data, |
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217 0, internal_object_printer, 0, 0, 0, |
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218 motion_data_description, |
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219 Lisp_Motion_Data); |
| 1204 | 220 |
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221 DEFINE_NODUMP_FROB_BLOCK_LISP_OBJECT ("process-data", process_data, |
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222 0, internal_object_printer, 0, 0, 0, |
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223 process_data_description, |
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224 Lisp_Process_Data); |
| 1204 | 225 |
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226 DEFINE_NODUMP_FROB_BLOCK_LISP_OBJECT ("timeout-data", timeout_data, |
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227 0, internal_object_printer, 0, 0, 0, |
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228 timeout_data_description, |
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229 Lisp_Timeout_Data); |
| 1204 | 230 |
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231 DEFINE_NODUMP_FROB_BLOCK_LISP_OBJECT ("eval-data", eval_data, |
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232 0, internal_object_printer, 0, 0, 0, |
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233 eval_data_description, |
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234 Lisp_Eval_Data); |
| 1204 | 235 |
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236 DEFINE_NODUMP_FROB_BLOCK_LISP_OBJECT ("misc-user-data", misc_user_data, |
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237 0, internal_object_printer, 0, 0, 0, |
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238 misc_user_data_description, |
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239 Lisp_Misc_User_Data); |
| 1204 | 240 |
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241 DEFINE_NODUMP_FROB_BLOCK_LISP_OBJECT ("magic-eval-data", magic_eval_data, |
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242 0, internal_object_printer, 0, 0, 0, |
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243 magic_eval_data_description, |
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244 Lisp_Magic_Eval_Data); |
| 1204 | 245 |
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246 DEFINE_NODUMP_FROB_BLOCK_LISP_OBJECT ("magic-data", magic_data, |
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247 0, internal_object_printer, 0, 0, 0, |
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248 magic_data_description, |
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249 Lisp_Magic_Data); |
| 1204 | 250 |
| 251 #endif /* EVENT_DATA_AS_OBJECTS */ | |
| 252 | |
| 428 | 253 static Lisp_Object |
| 254 mark_event (Lisp_Object obj) | |
| 255 { | |
| 440 | 256 Lisp_Event *event = XEVENT (obj); |
| 428 | 257 |
| 258 switch (event->event_type) | |
| 259 { | |
| 260 case key_press_event: | |
| 1204 | 261 mark_object (EVENT_KEY_KEYSYM (event)); |
| 428 | 262 break; |
| 263 case process_event: | |
| 1204 | 264 mark_object (EVENT_PROCESS_PROCESS (event)); |
| 428 | 265 break; |
| 266 case timeout_event: | |
| 1204 | 267 mark_object (EVENT_TIMEOUT_FUNCTION (event)); |
| 268 mark_object (EVENT_TIMEOUT_OBJECT (event)); | |
| 428 | 269 break; |
| 270 case eval_event: | |
| 271 case misc_user_event: | |
| 1204 | 272 mark_object (EVENT_EVAL_FUNCTION (event)); |
| 273 mark_object (EVENT_EVAL_OBJECT (event)); | |
| 428 | 274 break; |
| 275 case magic_eval_event: | |
| 1204 | 276 mark_object (EVENT_MAGIC_EVAL_OBJECT (event)); |
| 428 | 277 break; |
| 278 case button_press_event: | |
| 279 case button_release_event: | |
| 280 case pointer_motion_event: | |
| 281 case magic_event: | |
| 282 case empty_event: | |
| 283 case dead_event: | |
| 284 break; | |
| 285 default: | |
| 2500 | 286 ABORT (); |
| 428 | 287 } |
| 288 mark_object (event->channel); | |
| 289 return event->next; | |
| 290 } | |
| 291 | |
| 292 static void | |
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293 print_event_1 (const Ascbyte *str, Lisp_Object obj, Lisp_Object printcharfun) |
| 428 | 294 { |
| 793 | 295 DECLARE_EISTRING_MALLOC (ei); |
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296 write_ascstring (printcharfun, str); |
| 1204 | 297 format_event_object (ei, obj, 0); |
| 826 | 298 write_eistring (printcharfun, ei); |
| 793 | 299 eifree (ei); |
| 428 | 300 } |
| 301 | |
| 302 static void | |
| 2286 | 303 print_event (Lisp_Object obj, Lisp_Object printcharfun, |
| 304 int UNUSED (escapeflag)) | |
| 428 | 305 { |
| 306 if (print_readably) | |
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307 printing_unreadable_object_fmt ("#<event 0x%x>", LISP_OBJECT_UID (obj)); |
| 428 | 308 |
| 309 switch (XEVENT (obj)->event_type) | |
| 310 { | |
| 311 case key_press_event: | |
| 312 print_event_1 ("#<keypress-event ", obj, printcharfun); | |
| 313 break; | |
| 314 case button_press_event: | |
| 315 print_event_1 ("#<buttondown-event ", obj, printcharfun); | |
| 316 break; | |
| 317 case button_release_event: | |
| 318 print_event_1 ("#<buttonup-event ", obj, printcharfun); | |
| 319 break; | |
| 320 case magic_event: | |
| 321 case magic_eval_event: | |
| 322 print_event_1 ("#<magic-event ", obj, printcharfun); | |
| 323 break; | |
| 324 case pointer_motion_event: | |
| 325 { | |
| 326 Lisp_Object Vx, Vy; | |
| 327 Vx = Fevent_x_pixel (obj); | |
| 328 assert (INTP (Vx)); | |
| 329 Vy = Fevent_y_pixel (obj); | |
| 330 assert (INTP (Vy)); | |
| 793 | 331 write_fmt_string (printcharfun, "#<motion-event %ld, %ld", |
| 332 (long) XINT (Vx), (long) XINT (Vy)); | |
| 428 | 333 break; |
| 334 } | |
| 335 case process_event: | |
| 1204 | 336 write_fmt_string_lisp (printcharfun, "#<process-event %S", 1, |
| 337 XEVENT_PROCESS_PROCESS (obj)); | |
| 428 | 338 break; |
| 339 case timeout_event: | |
| 1204 | 340 write_fmt_string_lisp (printcharfun, "#<timeout-event %S", 1, |
| 341 XEVENT_TIMEOUT_OBJECT (obj)); | |
| 428 | 342 break; |
| 343 case empty_event: | |
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344 write_ascstring (printcharfun, "#<empty-event"); |
| 428 | 345 break; |
| 346 case misc_user_event: | |
| 1204 | 347 write_fmt_string_lisp (printcharfun, "#<misc-user-event (%S", 1, |
| 348 XEVENT_MISC_USER_FUNCTION (obj)); | |
| 349 write_fmt_string_lisp (printcharfun, " %S)", 1, | |
| 350 XEVENT_MISC_USER_OBJECT (obj)); | |
| 428 | 351 break; |
| 352 case eval_event: | |
| 1204 | 353 write_fmt_string_lisp (printcharfun, "#<eval-event (%S", 1, |
| 354 XEVENT_EVAL_FUNCTION (obj)); | |
| 355 write_fmt_string_lisp (printcharfun, " %S)", 1, | |
| 356 XEVENT_EVAL_OBJECT (obj)); | |
| 428 | 357 break; |
| 358 case dead_event: | |
|
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359 write_ascstring (printcharfun, "#<DEALLOCATED-EVENT"); |
| 428 | 360 break; |
| 361 default: | |
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362 write_ascstring (printcharfun, "#<UNKNOWN-EVENT-TYPE"); |
| 428 | 363 break; |
| 364 } | |
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365 write_fmt_string (printcharfun, " 0x%x>", LISP_OBJECT_UID (obj)); |
| 428 | 366 } |
| 367 | |
| 368 static int | |
|
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369 event_equal (Lisp_Object obj1, Lisp_Object obj2, int UNUSED (depth), |
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370 int UNUSED (foldcase)) |
| 428 | 371 { |
| 440 | 372 Lisp_Event *e1 = XEVENT (obj1); |
| 373 Lisp_Event *e2 = XEVENT (obj2); | |
| 428 | 374 |
| 375 if (e1->event_type != e2->event_type) return 0; | |
| 376 if (!EQ (e1->channel, e2->channel)) return 0; | |
| 377 /* if (e1->timestamp != e2->timestamp) return 0; */ | |
| 378 switch (e1->event_type) | |
| 379 { | |
| 2500 | 380 default: ABORT (); |
| 428 | 381 |
| 382 case process_event: | |
| 1204 | 383 return EQ (EVENT_PROCESS_PROCESS (e1), EVENT_PROCESS_PROCESS (e2)); |
| 428 | 384 |
| 385 case timeout_event: | |
| 1204 | 386 return (internal_equal (EVENT_TIMEOUT_FUNCTION (e1), |
| 387 EVENT_TIMEOUT_FUNCTION (e2), 0) && | |
| 388 internal_equal (EVENT_TIMEOUT_OBJECT (e1), | |
| 389 EVENT_TIMEOUT_OBJECT (e2), 0)); | |
| 428 | 390 |
| 391 case key_press_event: | |
| 1204 | 392 return (EQ (EVENT_KEY_KEYSYM (e1), EVENT_KEY_KEYSYM (e2)) && |
| 393 (EVENT_KEY_MODIFIERS (e1) == EVENT_KEY_MODIFIERS (e2))); | |
| 428 | 394 |
| 395 case button_press_event: | |
| 396 case button_release_event: | |
| 1204 | 397 return (EVENT_BUTTON_BUTTON (e1) == EVENT_BUTTON_BUTTON (e2) && |
| 398 EVENT_BUTTON_MODIFIERS (e1) == EVENT_BUTTON_MODIFIERS (e2)); | |
| 428 | 399 |
| 400 case pointer_motion_event: | |
| 1204 | 401 return (EVENT_MOTION_X (e1) == EVENT_MOTION_X (e2) && |
| 402 EVENT_MOTION_Y (e1) == EVENT_MOTION_Y (e2)); | |
| 428 | 403 |
| 404 case misc_user_event: | |
| 1204 | 405 return (internal_equal (EVENT_EVAL_FUNCTION (e1), |
| 406 EVENT_EVAL_FUNCTION (e2), 0) && | |
| 407 internal_equal (EVENT_EVAL_OBJECT (e1), | |
| 408 EVENT_EVAL_OBJECT (e2), 0) && | |
| 409 /* #### is this really needed for equality | |
| 428 | 410 or is x and y also important? */ |
| 1204 | 411 EVENT_MISC_USER_BUTTON (e1) == EVENT_MISC_USER_BUTTON (e2) && |
| 412 EVENT_MISC_USER_MODIFIERS (e1) == EVENT_MISC_USER_MODIFIERS (e2)); | |
| 428 | 413 |
| 414 case eval_event: | |
| 1204 | 415 return (internal_equal (EVENT_EVAL_FUNCTION (e1), |
| 416 EVENT_EVAL_FUNCTION (e2), 0) && | |
| 417 internal_equal (EVENT_EVAL_OBJECT (e1), | |
| 418 EVENT_EVAL_OBJECT (e2), 0)); | |
| 428 | 419 |
| 420 case magic_eval_event: | |
| 1204 | 421 return (EVENT_MAGIC_EVAL_INTERNAL_FUNCTION (e1) == |
| 422 EVENT_MAGIC_EVAL_INTERNAL_FUNCTION (e2) && | |
| 423 internal_equal (EVENT_MAGIC_EVAL_OBJECT (e1), | |
| 424 EVENT_MAGIC_EVAL_OBJECT (e2), 0)); | |
| 428 | 425 |
| 426 case magic_event: | |
| 788 | 427 return event_stream_compare_magic_event (e1, e2); |
| 428 | 428 |
| 429 case empty_event: /* Empty and deallocated events are equal. */ | |
| 430 case dead_event: | |
| 431 return 1; | |
| 432 } | |
| 433 } | |
| 434 | |
| 665 | 435 static Hashcode |
|
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436 event_hash (Lisp_Object obj, int depth, Boolint UNUSED (equalp)) |
| 428 | 437 { |
| 440 | 438 Lisp_Event *e = XEVENT (obj); |
| 665 | 439 Hashcode hash; |
| 428 | 440 |
| 441 hash = HASH2 (e->event_type, LISP_HASH (e->channel)); | |
| 442 switch (e->event_type) | |
| 443 { | |
| 444 case process_event: | |
| 1204 | 445 return HASH2 (hash, LISP_HASH (EVENT_PROCESS_PROCESS (e))); |
| 428 | 446 |
| 447 case timeout_event: | |
| 1204 | 448 return HASH3 (hash, |
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449 internal_hash (EVENT_TIMEOUT_FUNCTION (e), depth + 1, 0), |
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450 internal_hash (EVENT_TIMEOUT_OBJECT (e), depth + 1, 0)); |
| 428 | 451 |
| 452 case key_press_event: | |
| 1204 | 453 return HASH3 (hash, LISP_HASH (EVENT_KEY_KEYSYM (e)), |
| 454 EVENT_KEY_MODIFIERS (e)); | |
| 428 | 455 |
| 456 case button_press_event: | |
| 457 case button_release_event: | |
| 1204 | 458 return HASH3 (hash, EVENT_BUTTON_BUTTON (e), EVENT_BUTTON_MODIFIERS (e)); |
| 428 | 459 |
| 460 case pointer_motion_event: | |
| 1204 | 461 return HASH3 (hash, EVENT_MOTION_X (e), EVENT_MOTION_Y (e)); |
| 428 | 462 |
| 463 case misc_user_event: | |
| 1204 | 464 return HASH5 (hash, |
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465 internal_hash (EVENT_MISC_USER_FUNCTION (e), depth + 1, 0), |
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466 internal_hash (EVENT_MISC_USER_OBJECT (e), depth + 1, 0), |
| 1204 | 467 EVENT_MISC_USER_BUTTON (e), EVENT_MISC_USER_MODIFIERS (e)); |
| 428 | 468 |
| 469 case eval_event: | |
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470 return HASH3 (hash, internal_hash (EVENT_EVAL_FUNCTION (e), depth + 1, 0), |
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471 internal_hash (EVENT_EVAL_OBJECT (e), depth + 1, 0)); |
| 428 | 472 |
| 473 case magic_eval_event: | |
| 474 return HASH3 (hash, | |
| 1204 | 475 (Hashcode) EVENT_MAGIC_EVAL_INTERNAL_FUNCTION (e), |
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476 internal_hash (EVENT_MAGIC_EVAL_OBJECT (e), depth + 1, 0)); |
| 428 | 477 |
| 478 case magic_event: | |
| 788 | 479 return HASH2 (hash, event_stream_hash_magic_event (e)); |
| 428 | 480 |
| 481 case empty_event: | |
| 482 case dead_event: | |
| 483 return hash; | |
| 484 | |
| 485 default: | |
| 2500 | 486 ABORT (); |
| 428 | 487 } |
| 488 | |
| 489 return 0; /* unreached */ | |
| 490 } | |
| 934 | 491 |
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492 DEFINE_NODUMP_FROB_BLOCK_LISP_OBJECT ("event", event, |
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493 mark_event, print_event, 0, |
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494 event_equal, event_hash, |
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495 event_description, |
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496 Lisp_Event); |
| 428 | 497 |
| 498 DEFUN ("make-event", Fmake_event, 0, 2, 0, /* | |
| 499 Return a new event of type TYPE, with properties described by PLIST. | |
| 500 | |
| 501 TYPE is a symbol, either `empty', `key-press', `button-press', | |
| 502 `button-release', `misc-user' or `motion'. If TYPE is nil, it | |
| 503 defaults to `empty'. | |
| 504 | |
| 505 PLIST is a property list, the properties being compatible to those | |
| 506 returned by `event-properties'. The following properties are | |
| 507 allowed: | |
| 508 | |
| 509 channel -- The event channel, a frame or a console. For | |
| 510 button-press, button-release, misc-user and motion events, | |
| 511 this must be a frame. For key-press events, it must be | |
| 512 a console. If channel is unspecified, it will be set to | |
| 513 the selected frame or selected console, as appropriate. | |
| 514 key -- The event key, a symbol or character. Allowed only for | |
| 515 keypress events. | |
| 516 button -- The event button, integer 1, 2 or 3. Allowed for | |
| 517 button-press, button-release and misc-user events. | |
| 518 modifiers -- The event modifiers, a list of modifier symbols. Allowed | |
| 519 for key-press, button-press, button-release, motion and | |
| 520 misc-user events. | |
| 521 function -- Function. Allowed for misc-user events only. | |
| 522 object -- An object, function's parameter. Allowed for misc-user | |
| 523 events only. | |
| 524 x -- The event X coordinate, an integer. This is relative | |
| 525 to the left of CHANNEL's root window. Allowed for | |
| 526 motion, button-press, button-release and misc-user events. | |
| 527 y -- The event Y coordinate, an integer. This is relative | |
| 528 to the top of CHANNEL's root window. Allowed for | |
| 529 motion, button-press, button-release and misc-user events. | |
| 530 timestamp -- The event timestamp, a non-negative integer. Allowed for | |
| 531 all types of events. If unspecified, it will be set to 0 | |
| 532 by default. | |
| 533 | |
| 534 For event type `empty', PLIST must be nil. | |
| 535 `button-release', or `motion'. If TYPE is left out, it defaults to | |
| 536 `empty'. | |
| 537 PLIST is a list of properties, as returned by `event-properties'. Not | |
| 538 all properties are allowed for all kinds of events, and some are | |
| 539 required. | |
| 540 | |
| 541 WARNING: the event object returned may be a reused one; see the function | |
| 542 `deallocate-event'. | |
| 543 */ | |
| 544 (type, plist)) | |
| 545 { | |
| 546 Lisp_Object event = Qnil; | |
| 440 | 547 Lisp_Event *e; |
| 428 | 548 EMACS_INT coord_x = 0, coord_y = 0; |
| 549 struct gcpro gcpro1; | |
| 550 | |
| 551 GCPRO1 (event); | |
| 552 | |
| 553 if (NILP (type)) | |
| 554 type = Qempty; | |
| 555 | |
| 556 if (!NILP (Vevent_resource)) | |
| 557 { | |
| 558 event = Vevent_resource; | |
| 559 Vevent_resource = XEVENT_NEXT (event); | |
| 560 } | |
| 561 else | |
| 562 { | |
| 563 event = allocate_event (); | |
| 564 } | |
| 565 e = XEVENT (event); | |
| 566 zero_event (e); | |
| 567 | |
| 568 if (EQ (type, Qempty)) | |
| 569 { | |
| 570 /* For empty event, we return immediately, without processing | |
| 571 PLIST. In fact, processing PLIST would be wrong, because the | |
| 572 sanitizing process would fill in the properties | |
| 573 (e.g. CHANNEL), which we don't want in empty events. */ | |
| 934 | 574 set_event_type (e, empty_event); |
| 428 | 575 if (!NILP (plist)) |
| 563 | 576 invalid_operation ("Cannot set properties of empty event", plist); |
| 428 | 577 UNGCPRO; |
| 578 return event; | |
| 579 } | |
| 580 else if (EQ (type, Qkey_press)) | |
| 581 { | |
| 934 | 582 set_event_type (e, key_press_event); |
| 1204 | 583 SET_EVENT_KEY_KEYSYM (e, Qunbound); |
| 428 | 584 } |
| 585 else if (EQ (type, Qbutton_press)) | |
| 934 | 586 set_event_type (e, button_press_event); |
| 428 | 587 else if (EQ (type, Qbutton_release)) |
| 934 | 588 set_event_type (e, button_release_event); |
| 428 | 589 else if (EQ (type, Qmotion)) |
| 934 | 590 set_event_type (e, pointer_motion_event); |
| 428 | 591 else if (EQ (type, Qmisc_user)) |
| 592 { | |
| 934 | 593 set_event_type (e, misc_user_event); |
| 1204 | 594 SET_EVENT_MISC_USER_FUNCTION (e, Qnil); |
| 595 SET_EVENT_MISC_USER_OBJECT (e, Qnil); | |
| 428 | 596 } |
| 597 else | |
| 598 { | |
| 599 /* Not allowed: Qprocess, Qtimeout, Qmagic, Qeval, Qmagic_eval. */ | |
| 563 | 600 invalid_constant ("Invalid event type", type); |
| 428 | 601 } |
| 602 | |
| 603 EVENT_CHANNEL (e) = Qnil; | |
| 604 | |
| 605 plist = Fcopy_sequence (plist); | |
| 606 Fcanonicalize_plist (plist, Qnil); | |
| 607 | |
| 442 | 608 #define WRONG_EVENT_TYPE_FOR_PROPERTY(event_type, prop) \ |
| 563 | 609 invalid_argument_2 ("Invalid property for event type", prop, event_type) |
| 428 | 610 |
| 442 | 611 { |
| 612 EXTERNAL_PROPERTY_LIST_LOOP_3 (keyword, value, plist) | |
| 613 { | |
| 614 if (EQ (keyword, Qchannel)) | |
| 615 { | |
| 1204 | 616 if (EVENT_TYPE (e) == key_press_event) |
| 442 | 617 { |
| 618 if (!CONSOLEP (value)) | |
| 619 value = wrong_type_argument (Qconsolep, value); | |
| 620 } | |
| 621 else | |
| 622 { | |
| 623 if (!FRAMEP (value)) | |
| 624 value = wrong_type_argument (Qframep, value); | |
| 625 } | |
| 626 EVENT_CHANNEL (e) = value; | |
| 627 } | |
| 628 else if (EQ (keyword, Qkey)) | |
| 629 { | |
| 1204 | 630 switch (EVENT_TYPE (e)) |
| 442 | 631 { |
| 632 case key_press_event: | |
| 633 if (!SYMBOLP (value) && !CHARP (value)) | |
| 563 | 634 invalid_argument ("Invalid event key", value); |
| 1204 | 635 SET_EVENT_KEY_KEYSYM (e, value); |
| 442 | 636 break; |
| 637 default: | |
| 638 WRONG_EVENT_TYPE_FOR_PROPERTY (type, keyword); | |
| 639 break; | |
| 640 } | |
| 641 } | |
| 642 else if (EQ (keyword, Qbutton)) | |
| 643 { | |
|
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644 check_integer_range (value, Qzero, make_int (26)); |
| 428 | 645 |
| 1204 | 646 switch (EVENT_TYPE (e)) |
| 442 | 647 { |
| 648 case button_press_event: | |
| 649 case button_release_event: | |
| 1204 | 650 SET_EVENT_BUTTON_BUTTON (e, XINT (value)); |
| 442 | 651 break; |
| 652 case misc_user_event: | |
| 1204 | 653 SET_EVENT_MISC_USER_BUTTON (e, XINT (value)); |
| 442 | 654 break; |
| 655 default: | |
| 656 WRONG_EVENT_TYPE_FOR_PROPERTY (type, keyword); | |
| 657 break; | |
| 658 } | |
| 659 } | |
| 660 else if (EQ (keyword, Qmodifiers)) | |
| 661 { | |
| 662 int modifiers = 0; | |
| 428 | 663 |
| 442 | 664 EXTERNAL_LIST_LOOP_2 (sym, value) |
| 665 { | |
| 666 if (EQ (sym, Qcontrol)) modifiers |= XEMACS_MOD_CONTROL; | |
| 667 else if (EQ (sym, Qmeta)) modifiers |= XEMACS_MOD_META; | |
| 668 else if (EQ (sym, Qsuper)) modifiers |= XEMACS_MOD_SUPER; | |
| 669 else if (EQ (sym, Qhyper)) modifiers |= XEMACS_MOD_HYPER; | |
| 670 else if (EQ (sym, Qalt)) modifiers |= XEMACS_MOD_ALT; | |
| 671 else if (EQ (sym, Qsymbol)) modifiers |= XEMACS_MOD_ALT; | |
| 672 else if (EQ (sym, Qshift)) modifiers |= XEMACS_MOD_SHIFT; | |
| 673 else if (EQ (sym, Qbutton1)) modifiers |= XEMACS_MOD_BUTTON1; | |
| 674 else if (EQ (sym, Qbutton2)) modifiers |= XEMACS_MOD_BUTTON2; | |
| 675 else if (EQ (sym, Qbutton3)) modifiers |= XEMACS_MOD_BUTTON3; | |
| 676 else if (EQ (sym, Qbutton4)) modifiers |= XEMACS_MOD_BUTTON4; | |
| 677 else if (EQ (sym, Qbutton5)) modifiers |= XEMACS_MOD_BUTTON5; | |
| 678 else | |
| 563 | 679 invalid_constant ("Invalid key modifier", sym); |
| 442 | 680 } |
| 428 | 681 |
| 1204 | 682 switch (EVENT_TYPE (e)) |
| 442 | 683 { |
| 684 case key_press_event: | |
| 1204 | 685 SET_EVENT_KEY_MODIFIERS (e, modifiers); |
| 442 | 686 break; |
| 687 case button_press_event: | |
| 688 case button_release_event: | |
| 1204 | 689 SET_EVENT_BUTTON_MODIFIERS (e, modifiers); |
| 442 | 690 break; |
| 691 case pointer_motion_event: | |
| 1204 | 692 SET_EVENT_MOTION_MODIFIERS (e, modifiers); |
| 442 | 693 break; |
| 694 case misc_user_event: | |
| 1204 | 695 SET_EVENT_MISC_USER_MODIFIERS (e, modifiers); |
| 442 | 696 break; |
| 697 default: | |
| 698 WRONG_EVENT_TYPE_FOR_PROPERTY (type, keyword); | |
| 699 break; | |
| 700 } | |
| 701 } | |
| 702 else if (EQ (keyword, Qx)) | |
| 703 { | |
| 1204 | 704 switch (EVENT_TYPE (e)) |
| 442 | 705 { |
| 706 case pointer_motion_event: | |
| 707 case button_press_event: | |
| 708 case button_release_event: | |
| 709 case misc_user_event: | |
| 710 /* Allow negative values, so we can specify toolbar | |
| 711 positions. */ | |
| 712 CHECK_INT (value); | |
| 713 coord_x = XINT (value); | |
| 714 break; | |
| 715 default: | |
| 716 WRONG_EVENT_TYPE_FOR_PROPERTY (type, keyword); | |
| 717 break; | |
| 718 } | |
| 719 } | |
| 720 else if (EQ (keyword, Qy)) | |
| 721 { | |
| 1204 | 722 switch (EVENT_TYPE (e)) |
| 442 | 723 { |
| 724 case pointer_motion_event: | |
| 725 case button_press_event: | |
| 726 case button_release_event: | |
| 727 case misc_user_event: | |
| 728 /* Allow negative values; see above. */ | |
| 729 CHECK_INT (value); | |
| 730 coord_y = XINT (value); | |
| 731 break; | |
| 732 default: | |
| 733 WRONG_EVENT_TYPE_FOR_PROPERTY (type, keyword); | |
| 734 break; | |
| 735 } | |
| 736 } | |
| 737 else if (EQ (keyword, Qtimestamp)) | |
| 738 { | |
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739 #ifdef HAVE_BIGNUM |
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740 check_integer_range (value, Qzero, make_integer (UINT_MAX)); |
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741 if (BIGNUMP (value)) |
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742 { |
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743 SET_EVENT_TIMESTAMP (e, bignum_to_uint (XBIGNUM_DATA (value))); |
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744 } |
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745 #else |
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746 check_integer_range (value, Qzero, make_integer (EMACS_INT_MAX)); |
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747 #endif |
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748 if (INTP (value)) |
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749 { |
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750 SET_EVENT_TIMESTAMP (e, XINT (value)); |
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751 } |
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752 else |
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753 { |
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754 ABORT (); |
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755 } |
| 442 | 756 } |
| 757 else if (EQ (keyword, Qfunction)) | |
| 758 { | |
| 1204 | 759 switch (EVENT_TYPE (e)) |
| 442 | 760 { |
| 761 case misc_user_event: | |
| 1204 | 762 SET_EVENT_MISC_USER_FUNCTION (e, value); |
| 442 | 763 break; |
| 764 default: | |
| 765 WRONG_EVENT_TYPE_FOR_PROPERTY (type, keyword); | |
| 766 break; | |
| 767 } | |
| 768 } | |
| 769 else if (EQ (keyword, Qobject)) | |
| 770 { | |
| 1204 | 771 switch (EVENT_TYPE (e)) |
| 442 | 772 { |
| 773 case misc_user_event: | |
| 1204 | 774 SET_EVENT_MISC_USER_OBJECT (e, value); |
| 442 | 775 break; |
| 776 default: | |
| 777 WRONG_EVENT_TYPE_FOR_PROPERTY (type, keyword); | |
| 778 break; | |
| 779 } | |
| 780 } | |
| 781 else | |
| 563 | 782 invalid_constant_2 ("Invalid property", keyword, value); |
| 442 | 783 } |
| 784 } | |
| 428 | 785 |
| 786 /* Insert the channel, if missing. */ | |
| 787 if (NILP (EVENT_CHANNEL (e))) | |
| 788 { | |
| 934 | 789 if (EVENT_TYPE (e) == key_press_event) |
| 428 | 790 EVENT_CHANNEL (e) = Vselected_console; |
| 791 else | |
| 792 EVENT_CHANNEL (e) = Fselected_frame (Qnil); | |
| 793 } | |
| 794 | |
| 795 /* Fevent_properties, Fevent_x_pixel, etc. work with pixels relative | |
| 796 to the frame, so we must adjust accordingly. */ | |
| 797 if (FRAMEP (EVENT_CHANNEL (e))) | |
| 798 { | |
| 799 coord_x += FRAME_REAL_LEFT_TOOLBAR_WIDTH (XFRAME (EVENT_CHANNEL (e))); | |
| 800 coord_y += FRAME_REAL_TOP_TOOLBAR_HEIGHT (XFRAME (EVENT_CHANNEL (e))); | |
| 801 | |
| 802 switch (e->event_type) | |
| 803 { | |
| 804 case pointer_motion_event: | |
| 1204 | 805 SET_EVENT_MOTION_X (e, coord_x); |
| 806 SET_EVENT_MOTION_Y (e, coord_y); | |
| 428 | 807 break; |
| 808 case button_press_event: | |
| 809 case button_release_event: | |
| 1204 | 810 SET_EVENT_BUTTON_X (e, coord_x); |
| 811 SET_EVENT_BUTTON_Y (e, coord_y); | |
| 428 | 812 break; |
| 813 case misc_user_event: | |
| 1204 | 814 SET_EVENT_MISC_USER_X (e, coord_x); |
| 815 SET_EVENT_MISC_USER_Y (e, coord_y); | |
| 428 | 816 break; |
| 817 default: | |
| 2500 | 818 ABORT (); |
| 428 | 819 } |
| 820 } | |
| 821 | |
| 822 /* Finally, do some more validation. */ | |
| 1204 | 823 switch (EVENT_TYPE (e)) |
| 428 | 824 { |
| 825 case key_press_event: | |
| 1204 | 826 if (UNBOUNDP (EVENT_KEY_KEYSYM (e))) |
| 563 | 827 sferror ("A key must be specified to make a keypress event", |
| 442 | 828 plist); |
| 428 | 829 break; |
| 830 case button_press_event: | |
| 1204 | 831 if (!EVENT_BUTTON_BUTTON (e)) |
| 563 | 832 sferror |
| 442 | 833 ("A button must be specified to make a button-press event", |
| 834 plist); | |
| 428 | 835 break; |
| 836 case button_release_event: | |
| 1204 | 837 if (!EVENT_BUTTON_BUTTON (e)) |
| 563 | 838 sferror |
| 442 | 839 ("A button must be specified to make a button-release event", |
| 840 plist); | |
| 428 | 841 break; |
| 842 case misc_user_event: | |
| 1204 | 843 if (NILP (EVENT_MISC_USER_FUNCTION (e))) |
| 563 | 844 sferror ("A function must be specified to make a misc-user event", |
| 442 | 845 plist); |
| 428 | 846 break; |
| 847 default: | |
| 848 break; | |
| 849 } | |
| 850 | |
| 851 UNGCPRO; | |
| 852 return event; | |
| 853 } | |
| 854 | |
| 855 DEFUN ("deallocate-event", Fdeallocate_event, 1, 1, 0, /* | |
| 856 Allow the given event structure to be reused. | |
| 857 You MUST NOT use this event object after calling this function with it. | |
| 858 You will lose. It is not necessary to call this function, as event | |
| 859 objects are garbage-collected like all other objects; however, it may | |
| 860 be more efficient to explicitly deallocate events when you are sure | |
| 861 that it is safe to do so. | |
| 862 */ | |
| 863 (event)) | |
| 864 { | |
| 865 CHECK_EVENT (event); | |
| 866 | |
| 867 if (XEVENT_TYPE (event) == dead_event) | |
| 563 | 868 invalid_argument ("this event is already deallocated!", Qunbound); |
| 428 | 869 |
| 870 assert (XEVENT_TYPE (event) <= last_event_type); | |
| 871 | |
| 872 #if 0 | |
| 873 { | |
| 874 int i, len; | |
| 875 | |
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876 assert (!(EQ (event, Vlast_command_event) || |
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877 EQ (event, Vlast_input_event) || |
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878 EQ (event, Vunread_command_event))); |
| 428 | 879 |
| 880 len = XVECTOR_LENGTH (Vthis_command_keys); | |
| 881 for (i = 0; i < len; i++) | |
|
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882 assert (!EQ (event, XVECTOR_DATA (Vthis_command_keys) [i])); |
| 428 | 883 if (!NILP (Vrecent_keys_ring)) |
| 884 { | |
| 885 int recent_ring_len = XVECTOR_LENGTH (Vrecent_keys_ring); | |
| 886 for (i = 0; i < recent_ring_len; i++) | |
|
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887 assert (!EQ (event, XVECTOR_DATA (Vrecent_keys_ring) [i])); |
| 428 | 888 } |
| 889 } | |
| 890 #endif /* 0 */ | |
| 891 | |
| 892 assert (!EQ (event, Vevent_resource)); | |
| 893 deinitialize_event (event); | |
| 894 #ifndef ALLOC_NO_POOLS | |
| 895 XSET_EVENT_NEXT (event, Vevent_resource); | |
| 896 Vevent_resource = event; | |
| 897 #endif | |
| 898 return Qnil; | |
| 899 } | |
| 900 | |
| 901 DEFUN ("copy-event", Fcopy_event, 1, 2, 0, /* | |
| 444 | 902 Make a copy of the event object EVENT1. |
| 903 If a second event argument EVENT2 is given, EVENT1 is copied into | |
| 904 EVENT2 and EVENT2 is returned. If EVENT2 is not supplied (or is nil) | |
| 905 then a new event will be made as with `make-event'. See also the | |
| 906 function `deallocate-event'. | |
| 428 | 907 */ |
| 908 (event1, event2)) | |
| 909 { | |
| 910 CHECK_LIVE_EVENT (event1); | |
| 911 if (NILP (event2)) | |
| 912 event2 = Fmake_event (Qnil, Qnil); | |
| 430 | 913 else |
| 914 { | |
| 915 CHECK_LIVE_EVENT (event2); | |
| 916 if (EQ (event1, event2)) | |
| 563 | 917 return signal_continuable_error_2 |
| 918 (Qinvalid_argument, | |
| 919 "copy-event called with `eq' events", event1, event2); | |
| 430 | 920 } |
| 428 | 921 |
| 922 assert (XEVENT_TYPE (event1) <= last_event_type); | |
| 923 assert (XEVENT_TYPE (event2) <= last_event_type); | |
| 924 | |
| 934 | 925 XSET_EVENT_TYPE (event2, XEVENT_TYPE (event1)); |
| 926 XSET_EVENT_CHANNEL (event2, XEVENT_CHANNEL (event1)); | |
| 927 XSET_EVENT_TIMESTAMP (event2, XEVENT_TIMESTAMP (event1)); | |
| 1204 | 928 |
| 929 #ifdef EVENT_DATA_AS_OBJECTS | |
| 930 copy_lisp_object (XEVENT_DATA (event2), XEVENT_DATA (event1)); | |
| 931 #else | |
| 932 XEVENT (event2)->event = XEVENT (event1)->event; | |
| 933 #endif | |
| 934 | 934 return event2; |
| 428 | 935 } |
| 936 | |
| 937 | |
| 771 | 938 /************************************************************************/ |
| 939 /* event chain functions */ | |
| 940 /************************************************************************/ | |
| 428 | 941 |
| 942 /* Given a chain of events (or possibly nil), deallocate them all. */ | |
| 943 | |
| 944 void | |
| 945 deallocate_event_chain (Lisp_Object event_chain) | |
| 946 { | |
| 947 while (!NILP (event_chain)) | |
| 948 { | |
| 949 Lisp_Object next = XEVENT_NEXT (event_chain); | |
| 950 Fdeallocate_event (event_chain); | |
| 951 event_chain = next; | |
| 952 } | |
| 953 } | |
| 954 | |
| 955 /* Return the last event in a chain. | |
| 956 NOTE: You cannot pass nil as a value here! The routine will | |
| 957 abort if you do. */ | |
| 958 | |
| 959 Lisp_Object | |
| 960 event_chain_tail (Lisp_Object event_chain) | |
| 961 { | |
| 962 while (1) | |
| 963 { | |
| 964 Lisp_Object next = XEVENT_NEXT (event_chain); | |
| 965 if (NILP (next)) | |
| 966 return event_chain; | |
| 967 event_chain = next; | |
| 968 } | |
| 969 } | |
| 970 | |
| 971 /* Enqueue a single event onto the end of a chain of events. | |
| 972 HEAD points to the first event in the chain, TAIL to the last event. | |
| 973 If the chain is empty, both values should be nil. */ | |
| 974 | |
| 975 void | |
| 976 enqueue_event (Lisp_Object event, Lisp_Object *head, Lisp_Object *tail) | |
| 977 { | |
| 978 assert (NILP (XEVENT_NEXT (event))); | |
| 979 assert (!EQ (*tail, event)); | |
| 980 | |
| 981 if (!NILP (*tail)) | |
| 982 XSET_EVENT_NEXT (*tail, event); | |
| 983 else | |
| 984 *head = event; | |
| 985 *tail = event; | |
| 986 | |
| 987 assert (!EQ (event, XEVENT_NEXT (event))); | |
| 988 } | |
| 989 | |
| 990 /* Remove an event off the head of a chain of events and return it. | |
| 991 HEAD points to the first event in the chain, TAIL to the last event. */ | |
| 992 | |
| 993 Lisp_Object | |
| 994 dequeue_event (Lisp_Object *head, Lisp_Object *tail) | |
| 995 { | |
| 996 Lisp_Object event; | |
| 997 | |
| 998 event = *head; | |
| 999 *head = XEVENT_NEXT (event); | |
| 1000 XSET_EVENT_NEXT (event, Qnil); | |
| 1001 if (NILP (*head)) | |
| 1002 *tail = Qnil; | |
| 1003 return event; | |
| 1004 } | |
| 1005 | |
| 1006 /* Enqueue a chain of events (or possibly nil) onto the end of another | |
| 1007 chain of events. HEAD points to the first event in the chain being | |
| 1008 queued onto, TAIL to the last event. If the chain is empty, both values | |
| 1009 should be nil. */ | |
| 1010 | |
| 1011 void | |
| 1012 enqueue_event_chain (Lisp_Object event_chain, Lisp_Object *head, | |
| 1013 Lisp_Object *tail) | |
| 1014 { | |
| 1015 if (NILP (event_chain)) | |
| 1016 return; | |
| 1017 | |
| 1018 if (NILP (*head)) | |
| 1019 { | |
| 1020 *head = event_chain; | |
| 1021 *tail = event_chain; | |
| 1022 } | |
| 1023 else | |
| 1024 { | |
| 1025 XSET_EVENT_NEXT (*tail, event_chain); | |
| 1026 *tail = event_chain_tail (event_chain); | |
| 1027 } | |
| 1028 } | |
| 1029 | |
| 1204 | 1030 /* Map a function over each event in the chain. If the function returns |
| 1031 non-zero, remove the event just processed. Return the total number of | |
| 1032 items removed. | |
| 1033 | |
| 1034 NOTE: | |
| 1035 | |
| 1036 If you want a simple mapping over an event chain, with no intention to | |
| 1037 add or remove items, just use EVENT_CHAIN_LOOP(). | |
| 1038 */ | |
| 1039 | |
| 1040 int | |
| 1041 map_event_chain_remove (int (*fn) (Lisp_Object ev, void *user_data), | |
| 1042 Lisp_Object *head, Lisp_Object *tail, | |
| 1043 void *user_data, int flags) | |
| 1044 { | |
| 1045 Lisp_Object event; | |
| 1046 Lisp_Object previous_event = Qnil; | |
| 1047 int count = 0; | |
| 1048 | |
| 1049 EVENT_CHAIN_LOOP (event, *head) | |
| 1050 { | |
| 1051 if (fn (event, user_data)) | |
| 1052 { | |
| 1053 if (NILP (previous_event)) | |
| 1054 dequeue_event (head, tail); | |
| 1055 else | |
| 1056 { | |
| 1057 XSET_EVENT_NEXT (previous_event, XEVENT_NEXT (event)); | |
| 1058 if (EQ (*tail, event)) | |
| 1059 *tail = previous_event; | |
| 1060 } | |
| 1061 | |
| 1062 if (flags & MECR_DEALLOCATE_EVENT) | |
| 1063 Fdeallocate_event (event); | |
| 1064 count++; | |
| 1065 } | |
| 1066 else | |
| 1067 previous_event = event; | |
| 1068 } | |
| 1069 return count; | |
| 1070 } | |
| 1071 | |
| 428 | 1072 /* Return the number of events (possibly 0) on an event chain. */ |
| 1073 | |
| 1074 int | |
| 1075 event_chain_count (Lisp_Object event_chain) | |
| 1076 { | |
| 1077 Lisp_Object event; | |
| 1078 int n = 0; | |
| 1079 | |
| 1080 EVENT_CHAIN_LOOP (event, event_chain) | |
| 1081 n++; | |
| 1082 | |
| 1083 return n; | |
| 1084 } | |
| 1085 | |
| 1086 /* Find the event before EVENT in an event chain. This aborts | |
| 1087 if the event is not in the chain. */ | |
| 1088 | |
| 1089 Lisp_Object | |
| 1090 event_chain_find_previous (Lisp_Object event_chain, Lisp_Object event) | |
| 1091 { | |
| 1092 Lisp_Object previous = Qnil; | |
| 1093 | |
| 1094 while (!NILP (event_chain)) | |
| 1095 { | |
| 1096 if (EQ (event_chain, event)) | |
| 1097 return previous; | |
| 1098 previous = event_chain; | |
| 1099 event_chain = XEVENT_NEXT (event_chain); | |
| 1100 } | |
| 1101 | |
| 2500 | 1102 ABORT (); |
| 428 | 1103 return Qnil; |
| 1104 } | |
| 1105 | |
| 1106 Lisp_Object | |
| 1107 event_chain_nth (Lisp_Object event_chain, int n) | |
| 1108 { | |
| 1109 Lisp_Object event; | |
| 1110 EVENT_CHAIN_LOOP (event, event_chain) | |
| 1111 { | |
| 1112 if (!n) | |
| 1113 return event; | |
| 1114 n--; | |
| 1115 } | |
| 1116 return Qnil; | |
| 1117 } | |
| 1118 | |
| 771 | 1119 /* Return a freshly allocated copy of all events in the given chain. */ |
| 1120 | |
| 428 | 1121 Lisp_Object |
| 1122 copy_event_chain (Lisp_Object event_chain) | |
| 1123 { | |
| 1124 Lisp_Object new_chain = Qnil; | |
| 1125 Lisp_Object new_chain_tail = Qnil; | |
| 1126 Lisp_Object event; | |
| 1127 | |
| 1128 EVENT_CHAIN_LOOP (event, event_chain) | |
| 1129 { | |
| 1130 Lisp_Object copy = Fcopy_event (event, Qnil); | |
| 1131 enqueue_event (copy, &new_chain, &new_chain_tail); | |
| 1132 } | |
| 1133 | |
| 1134 return new_chain; | |
| 1135 } | |
| 1136 | |
| 771 | 1137 /* Given a pointer (maybe nil) into an old chain (also maybe nil, if |
| 1138 pointer is nil) and a new chain which is a copy of the old, return | |
| 1139 the corresponding new pointer. */ | |
| 1140 Lisp_Object | |
| 1141 transfer_event_chain_pointer (Lisp_Object pointer, Lisp_Object old_chain, | |
| 1142 Lisp_Object new_chain) | |
| 1143 { | |
| 1144 if (NILP (pointer)) | |
| 1145 return Qnil; | |
| 1146 assert (!NILP (old_chain)); | |
| 800 | 1147 #ifdef ERROR_CHECK_STRUCTURES |
| 771 | 1148 /* make sure we're actually in the chain */ |
| 1149 event_chain_find_previous (old_chain, pointer); | |
| 1150 assert (event_chain_count (old_chain) == event_chain_count (new_chain)); | |
| 800 | 1151 #endif /* ERROR_CHECK_STRUCTURES */ |
| 771 | 1152 return event_chain_nth (new_chain, |
| 1153 event_chain_count (old_chain) - | |
| 1154 event_chain_count (pointer)); | |
| 1155 } | |
| 1156 | |
| 428 | 1157 |
| 771 | 1158 /************************************************************************/ |
| 1159 /* higher level functions */ | |
| 1160 /************************************************************************/ | |
| 428 | 1161 |
| 1162 Lisp_Object QKbackspace, QKtab, QKlinefeed, QKreturn, QKescape, | |
| 1163 QKspace, QKdelete; | |
| 1164 | |
| 1165 int | |
| 1166 command_event_p (Lisp_Object event) | |
| 1167 { | |
| 1168 switch (XEVENT_TYPE (event)) | |
| 1169 { | |
| 1170 case key_press_event: | |
| 1171 case button_press_event: | |
| 1172 case button_release_event: | |
| 1173 case misc_user_event: | |
| 1174 return 1; | |
| 1175 default: | |
| 1176 return 0; | |
| 1177 } | |
| 1178 } | |
| 1179 | |
|
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1180 /* META_BEHAVIOR can be one of the following values, defined in events.h: |
|
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1181 |
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1182 high_bit_is_meta |
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1183 use_console_meta_flag |
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1184 latin_1_maps_to_itself |
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1185 |
| 1204 | 1186 DO_BACKSPACE_MAPPING means that if CON is a TTY, and C is a the TTY's |
| 1187 backspace character, the event will have keysym `backspace' instead of | |
| 1188 '(control h). It is clearly correct to do this conversion is the | |
| 1189 character was just read from a TTY, clearly incorrect inside of | |
| 1190 define-key, which must be able to handle all consoles. #### What about | |
| 1191 in other circumstances? #### Should the user have access to this flag? | |
| 1192 | |
| 1193 #### We need to go through and review all the flags in | |
| 1194 character_to_event() and event_to_character() and figure out exactly | |
| 1195 under what circumstances they should or should not be set, then go | |
| 1196 through and review all callers of character_to_event(), | |
| 1197 Fcharacter_to_event(), event_to_character(), and Fevent_to_character() | |
| 1198 and check that they are passing the correct flags in for their varied | |
| 1199 circumstances. | |
| 1200 | |
| 1201 #### Some of this garbage, and some of the flags, could go away if we | |
| 1202 implemented the suggestion, originally from event-Xt.c: | |
| 1203 | |
| 2828 | 1204 [[ The way that keysym correspondence to characters should work: |
| 1204 | 1205 - a Lisp_Event should contain a keysym AND a character slot. |
| 1206 - keybindings are tried with the keysym. If no binding can be found, | |
| 2828 | 1207 and there is a corresponding character, call self-insert-command. ]] |
| 1208 | |
| 1209 That's an X-specific way of thinking. All the other platforms--even | |
| 1210 the TTY, make sure you've done (set-input-mode t nil 1) and set your | |
| 1211 console coding system appropriately when checking--just use | |
| 1212 characters as emacs keysyms, and, together with defaulting to | |
| 1213 self-insert-command if an unbound key with a character correspondence | |
| 1214 is typed, that works fine for them. (Yes, this ignores GTK.) | |
| 1215 | |
| 1216 [[ [... snipping other suggestions which I've implemented.] | |
| 1217 Nuke the Qascii_character property. ]] | |
| 1204 | 1218 |
| 2828 | 1219 Well, we've renamed it anyway--it was badly named. |
| 1220 Qcharacter_of_keysym, here we go. It's really only with X11 that how | |
| 1221 to map between adiaeresis and (int-to-char #xE4), or ellipsis and | |
| 1222 whatever, becomes an issue, and IMO the property approach to this is | |
| 1223 fine. Aidan Kehoe, 2005-05-15. | |
| 1204 | 1224 |
| 2828 | 1225 [[ This would apparently solve a lot of different problems. ]] |
| 1226 | |
| 1227 I'd be interested to know what's left. Removing the allow-meta | |
| 1228 argument from event-to-character would be a Good Thing, IMO, but | |
| 1229 beyond that, I'm not sure what else there is to do wrt. key | |
| 1230 mappings. Of course, feedback from users of the Russian C-x facility | |
| 1231 is still needed. */ | |
| 428 | 1232 |
| 1233 void | |
| 867 | 1234 character_to_event (Ichar c, Lisp_Event *event, struct console *con, |
|
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2fd201d73a92
Call character_to_event on characters received from XIM, event-Xt.c
Aidan Kehoe <kehoea@parhasard.net>
parents:
3092
diff
changeset
|
1235 character_to_event_meta_behavior meta_behavior, |
| 2340 | 1236 int USED_IF_TTY (do_backspace_mapping)) |
| 428 | 1237 { |
| 1238 Lisp_Object k = Qnil; | |
| 442 | 1239 int m = 0; |
| 934 | 1240 if (EVENT_TYPE (event) == dead_event) |
| 563 | 1241 invalid_argument ("character-to-event called with a deallocated event!", Qunbound); |
| 428 | 1242 |
| 1243 #ifndef MULE | |
| 1244 c &= 255; | |
| 1245 #endif | |
|
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2fd201d73a92
Call character_to_event on characters received from XIM, event-Xt.c
Aidan Kehoe <kehoea@parhasard.net>
parents:
3092
diff
changeset
|
1246 if (meta_behavior != latin_1_maps_to_itself && c > 127 && c <= 255) |
| 428 | 1247 { |
| 1248 int meta_flag = 1; | |
|
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2fd201d73a92
Call character_to_event on characters received from XIM, event-Xt.c
Aidan Kehoe <kehoea@parhasard.net>
parents:
3092
diff
changeset
|
1249 if (meta_behavior == use_console_meta_flag && CONSOLE_TTY_P (con)) |
| 428 | 1250 meta_flag = TTY_FLAGS (con).meta_key; |
| 1251 switch (meta_flag) | |
| 1252 { | |
| 1253 case 0: /* ignore top bit; it's parity */ | |
| 1254 c -= 128; | |
| 1255 break; | |
| 1256 case 1: /* top bit is meta */ | |
| 1257 c -= 128; | |
| 442 | 1258 m = XEMACS_MOD_META; |
| 428 | 1259 break; |
| 1260 default: /* this is a real character */ | |
| 1261 break; | |
| 1262 } | |
| 1263 } | |
| 442 | 1264 if (c < ' ') c += '@', m |= XEMACS_MOD_CONTROL; |
| 1265 if (m & XEMACS_MOD_CONTROL) | |
| 428 | 1266 { |
| 1267 switch (c) | |
| 1268 { | |
| 442 | 1269 case 'I': k = QKtab; m &= ~XEMACS_MOD_CONTROL; break; |
| 1270 case 'J': k = QKlinefeed; m &= ~XEMACS_MOD_CONTROL; break; | |
| 1271 case 'M': k = QKreturn; m &= ~XEMACS_MOD_CONTROL; break; | |
| 1272 case '[': k = QKescape; m &= ~XEMACS_MOD_CONTROL; break; | |
| 428 | 1273 default: |
| 1204 | 1274 #if defined (HAVE_TTY) |
| 428 | 1275 if (do_backspace_mapping && |
| 1276 CHARP (con->tty_erase_char) && | |
| 1277 c - '@' == XCHAR (con->tty_erase_char)) | |
| 1278 { | |
| 1279 k = QKbackspace; | |
| 442 | 1280 m &= ~XEMACS_MOD_CONTROL; |
| 428 | 1281 } |
| 1204 | 1282 #endif /* defined (HAVE_TTY) */ |
| 428 | 1283 break; |
| 1284 } | |
| 1285 if (c >= 'A' && c <= 'Z') c -= 'A'-'a'; | |
| 1286 } | |
| 1204 | 1287 #if defined (HAVE_TTY) |
| 428 | 1288 else if (do_backspace_mapping && |
| 1289 CHARP (con->tty_erase_char) && c == XCHAR (con->tty_erase_char)) | |
| 1290 k = QKbackspace; | |
| 1204 | 1291 #endif /* defined (HAVE_TTY) */ |
| 428 | 1292 else if (c == 127) |
| 1293 k = QKdelete; | |
| 1294 else if (c == ' ') | |
| 1295 k = QKspace; | |
| 1296 | |
| 934 | 1297 set_event_type (event, key_press_event); |
| 1298 SET_EVENT_TIMESTAMP_ZERO (event); /* #### */ | |
| 1299 SET_EVENT_CHANNEL (event, wrap_console (con)); | |
| 1204 | 1300 SET_EVENT_KEY_KEYSYM (event, (!NILP (k) ? k : make_char (c))); |
| 1301 SET_EVENT_KEY_MODIFIERS (event, m); | |
| 428 | 1302 } |
| 1303 | |
| 867 | 1304 Ichar |
| 1204 | 1305 event_to_character (Lisp_Object event, |
| 428 | 1306 int allow_extra_modifiers, |
| 2828 | 1307 int allow_meta) |
| 428 | 1308 { |
| 867 | 1309 Ichar c = 0; |
| 428 | 1310 Lisp_Object code; |
| 1311 | |
| 1204 | 1312 if (XEVENT_TYPE (event) != key_press_event) |
| 428 | 1313 { |
| 1204 | 1314 assert (XEVENT_TYPE (event) != dead_event); |
| 428 | 1315 return -1; |
| 1316 } | |
| 1317 if (!allow_extra_modifiers && | |
| 2828 | 1318 XEVENT_KEY_MODIFIERS (event) & |
| 1319 (XEMACS_MOD_SUPER|XEMACS_MOD_HYPER|XEMACS_MOD_ALT)) | |
| 428 | 1320 return -1; |
| 1204 | 1321 if (CHAR_OR_CHAR_INTP (XEVENT_KEY_KEYSYM (event))) |
| 1322 c = XCHAR_OR_CHAR_INT (XEVENT_KEY_KEYSYM (event)); | |
| 1323 else if (!SYMBOLP (XEVENT_KEY_KEYSYM (event))) | |
| 2500 | 1324 ABORT (); |
| 1204 | 1325 else if (CHAR_OR_CHAR_INTP (code = Fget (XEVENT_KEY_KEYSYM (event), |
| 2828 | 1326 Qcharacter_of_keysym, Qnil))) |
| 428 | 1327 c = XCHAR_OR_CHAR_INT (code); |
| 1328 else | |
| 2828 | 1329 { |
| 1330 Lisp_Object thekeysym = XEVENT_KEY_KEYSYM (event); | |
| 1331 | |
| 1332 if (CHAR_OR_CHAR_INTP (code = Fget (thekeysym, Qascii_character, Qnil))) | |
| 1333 { | |
| 1334 c = XCHAR_OR_CHAR_INT (code); | |
| 1335 warn_when_safe(Qkey_mapping, Qwarning, | |
| 1336 "Obsolete key binding technique.\n" | |
| 428 | 1337 |
| 2828 | 1338 "Some code you're using bound %s to `self-insert-command' and messed around\n" |
| 1339 "with its `ascii-character' property. Doing this is deprecated, and the code\n" | |
| 1340 "should be updated to use the `set-character-of-keysym' interface.\n" | |
| 1341 "If you're the one updating the code, first check if there's still a need\n" | |
| 1342 "for it; we support many more X11 keysyms out of the box now than we did\n" | |
| 1343 "in the past. ", XSTRING_DATA(XSYMBOL_NAME(thekeysym))); | |
| 1344 /* Only show the warning once for each keysym. */ | |
| 1345 Fput(thekeysym, Qcharacter_of_keysym, code); | |
| 1346 } | |
| 1347 else | |
| 1348 { | |
| 1349 return -1; | |
| 1350 } | |
| 1351 } | |
| 1204 | 1352 if (XEVENT_KEY_MODIFIERS (event) & XEMACS_MOD_CONTROL) |
| 428 | 1353 { |
| 1354 if (c >= 'a' && c <= 'z') | |
| 1355 c -= ('a' - 'A'); | |
| 1356 else | |
| 1357 /* reject Control-Shift- keys */ | |
| 1358 if (c >= 'A' && c <= 'Z' && !allow_extra_modifiers) | |
| 1359 return -1; | |
| 1360 | |
| 1361 if (c >= '@' && c <= '_') | |
| 1362 c -= '@'; | |
| 1363 else if (c == ' ') /* C-space and C-@ are the same. */ | |
| 1364 c = 0; | |
| 1365 else | |
| 1366 /* reject keys that can't take Control- modifiers */ | |
| 1367 if (! allow_extra_modifiers) return -1; | |
| 1368 } | |
| 1369 | |
| 1204 | 1370 if (XEVENT_KEY_MODIFIERS (event) & XEMACS_MOD_META) |
| 428 | 1371 { |
| 1372 if (! allow_meta) return -1; | |
| 1204 | 1373 if (c >= 128) return -1; /* don't allow M-oslash (overlap) */ |
| 428 | 1374 c |= 0200; |
| 1375 } | |
| 1376 return c; | |
| 1377 } | |
| 1378 | |
| 2862 | 1379 DEFUN ("event-to-character", Fevent_to_character, 1, 4, 0, /* |
| 2828 | 1380 Return the closest character approximation to the given event object. |
| 428 | 1381 If the event isn't a keypress, this returns nil. |
| 1382 If the ALLOW-EXTRA-MODIFIERS argument is non-nil, then this is lenient in | |
| 1383 its translation; it will ignore modifier keys other than control and meta, | |
| 1384 and will ignore the shift modifier on those characters which have no | |
| 1385 shifted ASCII equivalent (Control-Shift-A for example, will be mapped to | |
| 1386 the same ASCII code as Control-A). | |
| 1387 If the ALLOW-META argument is non-nil, then the Meta modifier will be | |
| 1388 represented by turning on the high bit of the byte returned; otherwise, nil | |
| 1389 will be returned for events containing the Meta modifier. | |
| 1204 | 1390 Note that ALLOW-META may cause ambiguity between meta characters and |
| 1391 Latin-1 characters. | |
| 2862 | 1392 ALLOW-NON-ASCII is unused, and retained for compatibility. |
| 428 | 1393 */ |
| 2862 | 1394 (event, allow_extra_modifiers, allow_meta, UNUSED(allow_non_ascii))) |
| 428 | 1395 { |
| 867 | 1396 Ichar c; |
| 428 | 1397 CHECK_LIVE_EVENT (event); |
| 1204 | 1398 c = event_to_character (event, |
| 428 | 1399 !NILP (allow_extra_modifiers), |
| 2828 | 1400 !NILP (allow_meta)); |
| 428 | 1401 return c < 0 ? Qnil : make_char (c); |
| 1402 } | |
| 1403 | |
| 1404 DEFUN ("character-to-event", Fcharacter_to_event, 1, 4, 0, /* | |
| 444 | 1405 Convert KEY-DESCRIPTION into an event structure, replete with bucky bits. |
| 428 | 1406 |
| 444 | 1407 KEY-DESCRIPTION is the first argument, and the event to fill in is the |
| 1408 second. This function contains knowledge about what various kinds of | |
| 1409 arguments ``mean'' -- for example, the number 9 is converted to the | |
| 1410 character ``Tab'', not the distinct character ``Control-I''. | |
| 428 | 1411 |
| 3025 | 1412 KEY-DESCRIPTION can be an integer, a character, a symbol such as `clear', |
| 444 | 1413 or a list such as '(control backspace). |
| 1414 | |
| 1415 If the optional second argument EVENT is an event, it is modified and | |
| 1416 returned; otherwise, a new event object is created and returned. | |
| 428 | 1417 |
| 1418 Optional third arg CONSOLE is the console to store in the event, and | |
| 1419 defaults to the selected console. | |
| 1420 | |
| 444 | 1421 If KEY-DESCRIPTION is an integer or character, the high bit may be |
| 1204 | 1422 interpreted as the meta key. (This is done for backward compatibility in |
| 1423 lots of places -- specifically, because lots of Lisp code uses specs like | |
| 1424 ?\M-d and "\M-d" in key code, expecting this to work; yet these are in | |
| 1425 reality converted directly to 8-bit characters by the Lisp reader.) If | |
| 1426 USE-CONSOLE-META-FLAG is nil or CONSOLE is not a TTY, this will always be | |
| 1427 the case. If USE-CONSOLE-META-FLAG is non-nil and CONSOLE is a TTY, the | |
| 1428 `meta' flag for CONSOLE affects whether the high bit is interpreted as a | |
| 1429 meta key. (See `set-input-mode'.) Don't set this flag to non-nil unless | |
| 1430 you know what you're doing (more specifically, only if the character came | |
| 1431 directly from a TTY, not from the user). If you don't want this silly meta | |
| 1432 interpretation done, you should pass in a list containing the character. | |
| 428 | 1433 |
| 1434 Beware that character-to-event and event-to-character are not strictly | |
| 1435 inverse functions, since events contain much more information than the | |
| 444 | 1436 Lisp character object type can encode. |
| 428 | 1437 */ |
|
4780
2fd201d73a92
Call character_to_event on characters received from XIM, event-Xt.c
Aidan Kehoe <kehoea@parhasard.net>
parents:
3092
diff
changeset
|
1438 (keystroke, event, console, use_console_meta_flag_)) |
| 428 | 1439 { |
| 1440 struct console *con = decode_console (console); | |
| 1441 if (NILP (event)) | |
| 1442 event = Fmake_event (Qnil, Qnil); | |
| 1443 else | |
| 1444 CHECK_LIVE_EVENT (event); | |
| 444 | 1445 if (CONSP (keystroke) || SYMBOLP (keystroke)) |
| 1446 key_desc_list_to_event (keystroke, event, 1); | |
| 428 | 1447 else |
| 1448 { | |
| 444 | 1449 CHECK_CHAR_COERCE_INT (keystroke); |
| 1450 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
|
1451 (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
|
1452 high_bit_is_meta : use_console_meta_flag), 1); |
| 428 | 1453 } |
| 1454 return event; | |
| 1455 } | |
| 1456 | |
| 1457 void | |
| 1458 nth_of_key_sequence_as_event (Lisp_Object seq, int n, Lisp_Object event) | |
| 1459 { | |
| 1460 assert (STRINGP (seq) || VECTORP (seq)); | |
| 1461 assert (n < XINT (Flength (seq))); | |
| 1462 | |
| 1463 if (STRINGP (seq)) | |
| 1464 { | |
| 867 | 1465 Ichar ch = string_ichar (seq, n); |
| 428 | 1466 Fcharacter_to_event (make_char (ch), event, Qnil, Qnil); |
| 1467 } | |
| 1468 else | |
| 1469 { | |
| 1470 Lisp_Object keystroke = XVECTOR_DATA (seq)[n]; | |
| 1471 if (EVENTP (keystroke)) | |
| 1472 Fcopy_event (keystroke, event); | |
| 1473 else | |
| 1474 Fcharacter_to_event (keystroke, event, Qnil, Qnil); | |
| 1475 } | |
| 1476 } | |
| 1477 | |
| 1478 Lisp_Object | |
| 1479 key_sequence_to_event_chain (Lisp_Object seq) | |
| 1480 { | |
| 1481 int len = XINT (Flength (seq)); | |
| 1482 int i; | |
| 1483 Lisp_Object head = Qnil, tail = Qnil; | |
| 1484 | |
| 1485 for (i = 0; i < len; i++) | |
| 1486 { | |
| 1487 Lisp_Object event = Fmake_event (Qnil, Qnil); | |
| 1488 nth_of_key_sequence_as_event (seq, i, event); | |
| 1489 enqueue_event (event, &head, &tail); | |
| 1490 } | |
| 1491 | |
| 1492 return head; | |
| 1493 } | |
| 1494 | |
| 934 | 1495 |
| 793 | 1496 /* Concatenate a string description of EVENT onto the end of BUF. If |
| 1497 BRIEF, use short forms for keys, e.g. C- instead of control-. */ | |
| 1498 | |
| 934 | 1499 void |
| 1500 format_event_object (Eistring *buf, Lisp_Object event, int brief) | |
| 428 | 1501 { |
| 1502 int mouse_p = 0; | |
| 1503 int mod = 0; | |
| 1504 Lisp_Object key; | |
| 1505 | |
| 1204 | 1506 switch (XEVENT_TYPE (event)) |
| 428 | 1507 { |
| 1508 case key_press_event: | |
| 1509 { | |
| 1204 | 1510 mod = XEVENT_KEY_MODIFIERS (event); |
| 1511 key = XEVENT_KEY_KEYSYM (event); | |
| 428 | 1512 /* Hack. */ |
| 1513 if (! brief && CHARP (key) && | |
| 793 | 1514 mod & (XEMACS_MOD_CONTROL | XEMACS_MOD_META | XEMACS_MOD_SUPER | |
| 1515 XEMACS_MOD_HYPER)) | |
| 428 | 1516 { |
| 1517 int k = XCHAR (key); | |
| 1518 if (k >= 'a' && k <= 'z') | |
| 1519 key = make_char (k - ('a' - 'A')); | |
| 1520 else if (k >= 'A' && k <= 'Z') | |
| 442 | 1521 mod |= XEMACS_MOD_SHIFT; |
| 428 | 1522 } |
| 1523 break; | |
| 1524 } | |
| 1525 case button_release_event: | |
| 1526 mouse_p++; | |
| 1527 /* Fall through */ | |
| 1528 case button_press_event: | |
| 1529 { | |
| 1530 mouse_p++; | |
| 1204 | 1531 mod = XEVENT_BUTTON_MODIFIERS (event); |
| 1532 key = make_char (XEVENT_BUTTON_BUTTON (event) + '0'); | |
| 428 | 1533 break; |
| 1534 } | |
| 1535 case magic_event: | |
| 1536 { | |
| 788 | 1537 Lisp_Object stream; |
| 1538 struct gcpro gcpro1; | |
| 1539 GCPRO1 (stream); | |
| 428 | 1540 |
| 788 | 1541 stream = make_resizing_buffer_output_stream (); |
| 1204 | 1542 event_stream_format_magic_event (XEVENT (event), stream); |
| 788 | 1543 Lstream_flush (XLSTREAM (stream)); |
| 793 | 1544 eicat_raw (buf, resizing_buffer_stream_ptr (XLSTREAM (stream)), |
| 1545 Lstream_byte_count (XLSTREAM (stream))); | |
| 788 | 1546 Lstream_delete (XLSTREAM (stream)); |
| 1547 UNGCPRO; | |
| 428 | 1548 return; |
| 1549 } | |
| 2421 | 1550 case magic_eval_event: eicat_ascii (buf, "magic-eval"); return; |
| 1551 case pointer_motion_event: eicat_ascii (buf, "motion"); return; | |
| 1552 case misc_user_event: eicat_ascii (buf, "misc-user"); return; | |
| 1553 case eval_event: eicat_ascii (buf, "eval"); return; | |
| 1554 case process_event: eicat_ascii (buf, "process"); return; | |
| 1555 case timeout_event: eicat_ascii (buf, "timeout"); return; | |
| 1556 case empty_event: eicat_ascii (buf, "empty"); return; | |
| 1557 case dead_event: eicat_ascii (buf, "DEAD-EVENT"); return; | |
| 428 | 1558 default: |
| 2500 | 1559 ABORT (); |
| 442 | 1560 return; |
| 428 | 1561 } |
| 793 | 1562 #define modprint(x,y) \ |
| 2421 | 1563 do { if (brief) eicat_ascii (buf, (y)); else eicat_ascii (buf, (x)); } while (0) |
| 442 | 1564 if (mod & XEMACS_MOD_CONTROL) modprint ("control-", "C-"); |
| 1565 if (mod & XEMACS_MOD_META) modprint ("meta-", "M-"); | |
| 1566 if (mod & XEMACS_MOD_SUPER) modprint ("super-", "S-"); | |
| 1567 if (mod & XEMACS_MOD_HYPER) modprint ("hyper-", "H-"); | |
| 1568 if (mod & XEMACS_MOD_ALT) modprint ("alt-", "A-"); | |
| 1569 if (mod & XEMACS_MOD_SHIFT) modprint ("shift-", "Sh-"); | |
| 428 | 1570 if (mouse_p) |
| 1571 { | |
| 2421 | 1572 eicat_ascii (buf, "button"); |
| 428 | 1573 --mouse_p; |
| 1574 } | |
| 1575 | |
| 1576 #undef modprint | |
| 1577 | |
| 1578 if (CHARP (key)) | |
| 793 | 1579 eicat_ch (buf, XCHAR (key)); |
| 428 | 1580 else if (SYMBOLP (key)) |
| 1581 { | |
| 2367 | 1582 const Ascbyte *str = 0; |
| 428 | 1583 if (brief) |
| 1584 { | |
| 1585 if (EQ (key, QKlinefeed)) str = "LFD"; | |
| 1586 else if (EQ (key, QKtab)) str = "TAB"; | |
| 1587 else if (EQ (key, QKreturn)) str = "RET"; | |
| 1588 else if (EQ (key, QKescape)) str = "ESC"; | |
| 1589 else if (EQ (key, QKdelete)) str = "DEL"; | |
| 1590 else if (EQ (key, QKspace)) str = "SPC"; | |
| 1591 else if (EQ (key, QKbackspace)) str = "BS"; | |
| 1592 } | |
| 1593 if (str) | |
| 2421 | 1594 eicat_ascii (buf, str); |
| 428 | 1595 else |
| 793 | 1596 eicat_lstr (buf, XSYMBOL (key)->name); |
| 428 | 1597 } |
| 1598 else | |
| 2500 | 1599 ABORT (); |
| 428 | 1600 if (mouse_p) |
| 2421 | 1601 eicat_ascii (buf, "up"); |
| 428 | 1602 } |
| 1603 | |
| 1204 | 1604 void |
| 1605 upshift_event (Lisp_Object event) | |
| 1606 { | |
| 1607 Lisp_Object keysym = XEVENT_KEY_KEYSYM (event); | |
| 1608 Ichar c = 0; | |
| 1609 | |
| 1610 if (CHAR_OR_CHAR_INTP (keysym) | |
| 1611 && ((c = XCHAR_OR_CHAR_INT (keysym)), | |
| 1612 c >= 'a' && c <= 'z')) | |
| 1613 XSET_EVENT_KEY_KEYSYM (event, make_char (c + 'A' - 'a')); | |
| 1614 else | |
| 1615 if (!(XEVENT_KEY_MODIFIERS (event) & XEMACS_MOD_SHIFT)) | |
| 1616 XSET_EVENT_KEY_MODIFIERS | |
| 1617 (event, XEVENT_KEY_MODIFIERS (event) |= XEMACS_MOD_SHIFT); | |
| 1618 } | |
| 1619 | |
| 1620 void | |
| 1621 downshift_event (Lisp_Object event) | |
| 1622 { | |
| 1623 Lisp_Object keysym = XEVENT_KEY_KEYSYM (event); | |
| 1624 Ichar c = 0; | |
| 1625 | |
| 1626 if (XEVENT_KEY_MODIFIERS (event) & XEMACS_MOD_SHIFT) | |
| 1627 XSET_EVENT_KEY_MODIFIERS | |
| 1628 (event, XEVENT_KEY_MODIFIERS (event) & ~XEMACS_MOD_SHIFT); | |
| 1629 else if (CHAR_OR_CHAR_INTP (keysym) | |
| 1630 && ((c = XCHAR_OR_CHAR_INT (keysym)), | |
| 1631 c >= 'A' && c <= 'Z')) | |
| 1632 XSET_EVENT_KEY_KEYSYM (event, make_char (c + 'a' - 'A')); | |
| 1633 } | |
| 1634 | |
| 1635 int | |
| 1636 event_upshifted_p (Lisp_Object event) | |
| 1637 { | |
| 1638 Lisp_Object keysym = XEVENT_KEY_KEYSYM (event); | |
| 1639 Ichar c = 0; | |
| 1640 | |
| 1641 if ((XEVENT_KEY_MODIFIERS (event) & XEMACS_MOD_SHIFT) | |
| 1642 || (CHAR_OR_CHAR_INTP (keysym) | |
| 1643 && ((c = XCHAR_OR_CHAR_INT (keysym)), | |
| 1644 c >= 'A' && c <= 'Z'))) | |
| 1645 return 1; | |
| 1646 else | |
| 1647 return 0; | |
| 1648 } | |
| 934 | 1649 |
| 428 | 1650 DEFUN ("eventp", Feventp, 1, 1, 0, /* |
| 1651 True if OBJECT is an event object. | |
| 1652 */ | |
| 1653 (object)) | |
| 1654 { | |
| 1655 return EVENTP (object) ? Qt : Qnil; | |
| 1656 } | |
| 1657 | |
| 1658 DEFUN ("event-live-p", Fevent_live_p, 1, 1, 0, /* | |
| 1659 True if OBJECT is an event object that has not been deallocated. | |
| 1660 */ | |
| 1661 (object)) | |
| 1662 { | |
| 934 | 1663 return EVENTP (object) && XEVENT_TYPE (object) != dead_event ? |
| 1664 Qt : Qnil; | |
| 428 | 1665 } |
| 1666 | |
| 1667 #if 0 /* debugging functions */ | |
| 1668 | |
| 826 | 1669 DEFUN ("event-next", Fevent_next, 1, 1, 0, /* |
| 428 | 1670 Return the event object's `next' event, or nil if it has none. |
| 1671 The `next-event' field is changed by calling `set-next-event'. | |
| 1672 */ | |
| 1673 (event)) | |
| 1674 { | |
| 440 | 1675 Lisp_Event *e; |
| 428 | 1676 CHECK_LIVE_EVENT (event); |
| 1677 | |
| 1678 return XEVENT_NEXT (event); | |
| 1679 } | |
| 1680 | |
| 826 | 1681 DEFUN ("set-event-next", Fset_event_next, 2, 2, 0, /* |
| 428 | 1682 Set the `next event' of EVENT to NEXT-EVENT. |
| 1683 NEXT-EVENT must be an event object or nil. | |
| 1684 */ | |
| 1685 (event, next_event)) | |
| 1686 { | |
| 1687 Lisp_Object ev; | |
| 1688 | |
| 1689 CHECK_LIVE_EVENT (event); | |
| 1690 if (NILP (next_event)) | |
| 1691 { | |
| 1692 XSET_EVENT_NEXT (event, Qnil); | |
| 1693 return Qnil; | |
| 1694 } | |
| 1695 | |
| 1696 CHECK_LIVE_EVENT (next_event); | |
| 1697 | |
| 1698 EVENT_CHAIN_LOOP (ev, XEVENT_NEXT (event)) | |
| 1699 { | |
| 1700 QUIT; | |
| 1701 if (EQ (ev, event)) | |
| 563 | 1702 invalid_operation_2 ("Cyclic event-next", event, next_event); |
| 428 | 1703 } |
| 1704 XSET_EVENT_NEXT (event, next_event); | |
| 1705 return next_event; | |
| 1706 } | |
| 1707 | |
| 1708 #endif /* 0 */ | |
| 1709 | |
| 1710 DEFUN ("event-type", Fevent_type, 1, 1, 0, /* | |
| 1711 Return the type of EVENT. | |
| 1712 This will be a symbol; one of | |
| 1713 | |
| 1714 key-press A key was pressed. | |
| 1715 button-press A mouse button was pressed. | |
| 1716 button-release A mouse button was released. | |
| 1717 misc-user Some other user action happened; typically, this is | |
| 1718 a menu selection or scrollbar action. | |
| 1719 motion The mouse moved. | |
| 1720 process Input is available from a subprocess. | |
| 1721 timeout A timeout has expired. | |
| 1722 eval This causes a specified action to occur when dispatched. | |
| 1723 magic Some window-system-specific event has occurred. | |
| 1724 empty The event has been allocated but not assigned. | |
| 1725 | |
| 1726 */ | |
| 1727 (event)) | |
| 1728 { | |
| 1729 CHECK_LIVE_EVENT (event); | |
| 934 | 1730 switch (XEVENT_TYPE (event)) |
| 428 | 1731 { |
| 1732 case key_press_event: return Qkey_press; | |
| 1733 case button_press_event: return Qbutton_press; | |
| 1734 case button_release_event: return Qbutton_release; | |
| 1735 case misc_user_event: return Qmisc_user; | |
| 1736 case pointer_motion_event: return Qmotion; | |
| 1737 case process_event: return Qprocess; | |
| 1738 case timeout_event: return Qtimeout; | |
| 1739 case eval_event: return Qeval; | |
| 1740 case magic_event: | |
| 1741 case magic_eval_event: | |
| 1742 return Qmagic; | |
| 1743 | |
| 1744 case empty_event: | |
| 1745 return Qempty; | |
| 1746 | |
| 1747 default: | |
| 2500 | 1748 ABORT (); |
| 428 | 1749 return Qnil; |
| 1750 } | |
| 1751 } | |
| 1752 | |
| 1753 DEFUN ("event-timestamp", Fevent_timestamp, 1, 1, 0, /* | |
| 1754 Return the timestamp of the event object EVENT. | |
| 442 | 1755 Timestamps are measured in milliseconds since the start of the window system. |
| 1756 They are NOT related to any current time measurement. | |
| 1757 They should be compared with `event-timestamp<'. | |
| 1758 See also `current-event-timestamp'. | |
| 428 | 1759 */ |
| 1760 (event)) | |
| 1761 { | |
| 1762 CHECK_LIVE_EVENT (event); | |
| 1763 /* This junk is so that timestamps don't get to be negative, but contain | |
|
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1764 as many bits as this particular emacs will allow. We could return |
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1765 bignums on builds that support them, but that involves consing and |
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1766 doesn't work on builds that don't support bignums. |
| 428 | 1767 */ |
| 2039 | 1768 return make_int (EMACS_INT_MAX & XEVENT_TIMESTAMP (event)); |
| 428 | 1769 } |
| 1770 | |
| 2039 | 1771 #define TIMESTAMP_HALFSPACE (1L << (INT_VALBITS - 2)) |
| 442 | 1772 |
| 1773 DEFUN ("event-timestamp<", Fevent_timestamp_lessp, 2, 2, 0, /* | |
| 1774 Return true if timestamp TIME1 is earlier than timestamp TIME2. | |
| 1775 This correctly handles timestamp wrap. | |
| 1776 See also `event-timestamp' and `current-event-timestamp'. | |
| 1777 */ | |
| 1778 (time1, time2)) | |
| 1779 { | |
| 1780 EMACS_INT t1, t2; | |
| 1781 | |
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1782 check_integer_range (time1, Qzero, make_integer (EMACS_INT_MAX)); |
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1783 check_integer_range (time2, Qzero, make_integer (EMACS_INT_MAX)); |
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1784 |
| 442 | 1785 t1 = XINT (time1); |
| 1786 t2 = XINT (time2); | |
| 1787 | |
| 1788 if (t1 < t2) | |
| 1789 return t2 - t1 < TIMESTAMP_HALFSPACE ? Qt : Qnil; | |
| 1790 else | |
| 1791 return t1 - t2 < TIMESTAMP_HALFSPACE ? Qnil : Qt; | |
| 1792 } | |
| 1793 | |
| 934 | 1794 #define CHECK_EVENT_TYPE(e,t1,sym) do { \ |
| 1795 CHECK_LIVE_EVENT (e); \ | |
| 1796 if (XEVENT_TYPE (e) != (t1)) \ | |
| 1797 e = wrong_type_argument (sym,e); \ | |
| 1798 } while (0) | |
| 1799 | |
| 1800 #define CHECK_EVENT_TYPE2(e,t1,t2,sym) do { \ | |
| 1801 CHECK_LIVE_EVENT (e); \ | |
| 1802 { \ | |
| 1803 emacs_event_type CET_type = XEVENT_TYPE (e); \ | |
| 1804 if (CET_type != (t1) && \ | |
| 1805 CET_type != (t2)) \ | |
| 1806 e = wrong_type_argument (sym,e); \ | |
| 1807 } \ | |
| 1808 } while (0) | |
| 1809 | |
| 1810 #define CHECK_EVENT_TYPE3(e,t1,t2,t3,sym) do { \ | |
| 1811 CHECK_LIVE_EVENT (e); \ | |
| 1812 { \ | |
| 1813 emacs_event_type CET_type = XEVENT_TYPE (e); \ | |
| 1814 if (CET_type != (t1) && \ | |
| 1815 CET_type != (t2) && \ | |
| 1816 CET_type != (t3)) \ | |
| 1817 e = wrong_type_argument (sym,e); \ | |
| 1818 } \ | |
| 1819 } while (0) | |
| 428 | 1820 |
| 1821 DEFUN ("event-key", Fevent_key, 1, 1, 0, /* | |
| 1822 Return the Keysym of the key-press event EVENT. | |
| 1823 This will be a character if the event is associated with one, else a symbol. | |
| 1824 */ | |
| 1825 (event)) | |
| 1826 { | |
| 1827 CHECK_EVENT_TYPE (event, key_press_event, Qkey_press_event_p); | |
| 1204 | 1828 return XEVENT_KEY_KEYSYM (event); |
| 428 | 1829 } |
| 1830 | |
| 1831 DEFUN ("event-button", Fevent_button, 1, 1, 0, /* | |
| 444 | 1832 Return the button-number of the button-press or button-release event EVENT. |
| 428 | 1833 */ |
| 1834 (event)) | |
| 1835 { | |
| 1836 CHECK_EVENT_TYPE3 (event, button_press_event, button_release_event, | |
| 1837 misc_user_event, Qbutton_event_p); | |
| 1838 #ifdef HAVE_WINDOW_SYSTEM | |
| 1204 | 1839 if (XEVENT_TYPE (event) == misc_user_event) |
| 1840 return make_int (XEVENT_MISC_USER_BUTTON (event)); | |
| 934 | 1841 else |
| 1204 | 1842 return make_int (XEVENT_BUTTON_BUTTON (event)); |
| 428 | 1843 #else /* !HAVE_WINDOW_SYSTEM */ |
| 1844 return Qzero; | |
| 1845 #endif /* !HAVE_WINDOW_SYSTEM */ | |
| 1846 } | |
| 1847 | |
| 1848 DEFUN ("event-modifier-bits", Fevent_modifier_bits, 1, 1, 0, /* | |
| 442 | 1849 Return a number representing the modifier keys and buttons which were down |
| 428 | 1850 when the given mouse or keyboard event was produced. |
| 442 | 1851 See also the function `event-modifiers'. |
| 428 | 1852 */ |
| 1853 (event)) | |
| 1854 { | |
| 1855 again: | |
| 1856 CHECK_LIVE_EVENT (event); | |
| 934 | 1857 switch (XEVENT_TYPE (event)) |
| 1858 { | |
| 1859 case key_press_event: | |
| 1204 | 1860 return make_int (XEVENT_KEY_MODIFIERS (event)); |
| 934 | 1861 case button_press_event: |
| 1862 case button_release_event: | |
| 1204 | 1863 return make_int (XEVENT_BUTTON_MODIFIERS (event)); |
| 934 | 1864 case pointer_motion_event: |
| 1204 | 1865 return make_int (XEVENT_MOTION_MODIFIERS (event)); |
| 934 | 1866 case misc_user_event: |
| 1204 | 1867 return make_int (XEVENT_MISC_USER_MODIFIERS (event)); |
| 934 | 1868 default: |
| 1869 event = wrong_type_argument (intern ("key-or-mouse-event-p"), event); | |
| 1870 goto again; | |
| 1871 } | |
| 428 | 1872 } |
| 1873 | |
| 1874 DEFUN ("event-modifiers", Fevent_modifiers, 1, 1, 0, /* | |
| 442 | 1875 Return a list of symbols, the names of the modifier keys and buttons |
| 428 | 1876 which were down when the given mouse or keyboard event was produced. |
| 442 | 1877 See also the function `event-modifier-bits'. |
| 1878 | |
| 1879 The possible symbols in the list are | |
| 1880 | |
| 1881 `shift': The Shift key. Will not appear, in general, on key events | |
| 1882 where the keysym is an ASCII character, because using Shift | |
| 1883 on such a character converts it into another character rather | |
| 1884 than actually just adding a Shift modifier. | |
| 1885 | |
| 1886 `control': The Control key. | |
| 1887 | |
| 1888 `meta': The Meta key. On PC's and PC-style keyboards, this is generally | |
| 1889 labelled \"Alt\"; Meta is a holdover from early Lisp Machines and | |
| 1890 such, propagated through the X Window System. On Sun keyboards, | |
| 1891 this key is labelled with a diamond. | |
| 1892 | |
| 1893 `alt': The \"Alt\" key. Alt is in quotes because this does not refer | |
| 1894 to what it obviously should refer to, namely the Alt key on PC | |
| 1895 keyboards. Instead, it refers to the key labelled Alt on Sun | |
| 1896 keyboards, and to no key at all on PC keyboards. | |
| 1897 | |
| 1898 `super': The Super key. Most keyboards don't have any such key, but | |
| 1899 under X Windows using `xmodmap' you can assign any key (such as | |
| 1900 an underused right-shift, right-control, or right-alt key) to | |
| 1901 this key modifier. No support currently exists under MS Windows | |
| 1902 for generating these modifiers. | |
| 1903 | |
| 1904 `hyper': The Hyper key. Works just like the Super key. | |
| 1905 | |
| 1906 `button1': The mouse buttons. This means that the specified button was held | |
| 1907 `button2': down at the time the event occurred. NOTE: For button-press | |
| 1908 `button3': events, the button that was just pressed down does NOT appear in | |
| 1909 `button4': the modifiers. | |
| 1910 `button5': | |
| 1911 | |
| 1912 Button modifiers are currently ignored when defining and looking up key and | |
| 1913 mouse strokes in keymaps. This could be changed, which would allow a user to | |
| 1914 create button-chord actions, use a button as a key modifier and do other | |
| 1915 clever things. | |
| 428 | 1916 */ |
| 1917 (event)) | |
| 1918 { | |
| 1919 int mod = XINT (Fevent_modifier_bits (event)); | |
| 1920 Lisp_Object result = Qnil; | |
| 442 | 1921 struct gcpro gcpro1; |
| 1922 | |
| 1923 GCPRO1 (result); | |
| 1924 if (mod & XEMACS_MOD_SHIFT) result = Fcons (Qshift, result); | |
| 1925 if (mod & XEMACS_MOD_ALT) result = Fcons (Qalt, result); | |
| 1926 if (mod & XEMACS_MOD_HYPER) result = Fcons (Qhyper, result); | |
| 1927 if (mod & XEMACS_MOD_SUPER) result = Fcons (Qsuper, result); | |
| 1928 if (mod & XEMACS_MOD_META) result = Fcons (Qmeta, result); | |
| 1929 if (mod & XEMACS_MOD_CONTROL) result = Fcons (Qcontrol, result); | |
| 1930 if (mod & XEMACS_MOD_BUTTON1) result = Fcons (Qbutton1, result); | |
| 1931 if (mod & XEMACS_MOD_BUTTON2) result = Fcons (Qbutton2, result); | |
| 1932 if (mod & XEMACS_MOD_BUTTON3) result = Fcons (Qbutton3, result); | |
| 1933 if (mod & XEMACS_MOD_BUTTON4) result = Fcons (Qbutton4, result); | |
| 1934 if (mod & XEMACS_MOD_BUTTON5) result = Fcons (Qbutton5, result); | |
| 1935 RETURN_UNGCPRO (Fnreverse (result)); | |
| 428 | 1936 } |
| 1937 | |
| 1938 static int | |
| 1939 event_x_y_pixel_internal (Lisp_Object event, int *x, int *y, int relative) | |
| 1940 { | |
| 1941 struct window *w; | |
| 1942 struct frame *f; | |
| 1943 | |
| 934 | 1944 if (XEVENT_TYPE (event) == pointer_motion_event) |
| 1945 { | |
| 1204 | 1946 *x = XEVENT_MOTION_X (event); |
| 1947 *y = XEVENT_MOTION_Y (event); | |
| 934 | 1948 } |
| 1949 else if (XEVENT_TYPE (event) == button_press_event || | |
| 1950 XEVENT_TYPE (event) == button_release_event) | |
| 1951 { | |
| 1204 | 1952 *x = XEVENT_BUTTON_X (event); |
| 1953 *y = XEVENT_BUTTON_Y (event); | |
| 934 | 1954 } |
| 1955 else if (XEVENT_TYPE (event) == misc_user_event) | |
| 1956 { | |
| 1204 | 1957 *x = XEVENT_MISC_USER_X (event); |
| 1958 *y = XEVENT_MISC_USER_Y (event); | |
| 934 | 1959 } |
| 1960 else | |
| 1961 return 0; | |
| 428 | 1962 f = XFRAME (EVENT_CHANNEL (XEVENT (event))); |
| 1963 | |
| 1964 if (relative) | |
| 1965 { | |
| 1966 w = find_window_by_pixel_pos (*x, *y, f->root_window); | |
| 1967 | |
| 1968 if (!w) | |
| 442 | 1969 return 1; /* #### What should really happen here? */ |
| 428 | 1970 |
| 1971 *x -= w->pixel_left; | |
| 1972 *y -= w->pixel_top; | |
| 1973 } | |
| 1974 else | |
| 1975 { | |
| 1976 *y -= FRAME_REAL_TOP_TOOLBAR_HEIGHT (f) - | |
| 1977 FRAME_REAL_TOP_TOOLBAR_BORDER_WIDTH (f); | |
| 1978 *x -= FRAME_REAL_LEFT_TOOLBAR_WIDTH (f) - | |
| 1979 FRAME_REAL_LEFT_TOOLBAR_BORDER_WIDTH (f); | |
| 1980 } | |
| 1981 | |
| 1982 return 1; | |
| 1983 } | |
| 1984 | |
| 1985 DEFUN ("event-window-x-pixel", Fevent_window_x_pixel, 1, 1, 0, /* | |
| 1986 Return the X position in pixels of mouse event EVENT. | |
| 1987 The value returned is relative to the window the event occurred in. | |
| 1988 This will signal an error if the event is not a mouse event. | |
| 1989 See also `mouse-event-p' and `event-x-pixel'. | |
| 1990 */ | |
| 1991 (event)) | |
| 1992 { | |
| 1993 int x, y; | |
| 1994 | |
| 1995 CHECK_LIVE_EVENT (event); | |
| 1996 | |
| 1997 if (!event_x_y_pixel_internal (event, &x, &y, 1)) | |
| 1998 return wrong_type_argument (Qmouse_event_p, event); | |
| 1999 else | |
| 2000 return make_int (x); | |
| 2001 } | |
| 2002 | |
| 2003 DEFUN ("event-window-y-pixel", Fevent_window_y_pixel, 1, 1, 0, /* | |
| 2004 Return the Y position in pixels of mouse event EVENT. | |
| 2005 The value returned is relative to the window the event occurred in. | |
| 2006 This will signal an error if the event is not a mouse event. | |
| 2007 See also `mouse-event-p' and `event-y-pixel'. | |
| 2008 */ | |
| 2009 (event)) | |
| 2010 { | |
| 2011 int x, y; | |
| 2012 | |
| 2013 CHECK_LIVE_EVENT (event); | |
| 2014 | |
| 2015 if (!event_x_y_pixel_internal (event, &x, &y, 1)) | |
| 2016 return wrong_type_argument (Qmouse_event_p, event); | |
| 2017 else | |
| 2018 return make_int (y); | |
| 2019 } | |
| 2020 | |
| 2021 DEFUN ("event-x-pixel", Fevent_x_pixel, 1, 1, 0, /* | |
| 2022 Return the X position in pixels of mouse event EVENT. | |
| 2023 The value returned is relative to the frame the event occurred in. | |
| 2024 This will signal an error if the event is not a mouse event. | |
| 2025 See also `mouse-event-p' and `event-window-x-pixel'. | |
| 2026 */ | |
| 2027 (event)) | |
| 2028 { | |
| 2029 int x, y; | |
| 2030 | |
| 2031 CHECK_LIVE_EVENT (event); | |
| 2032 | |
| 2033 if (!event_x_y_pixel_internal (event, &x, &y, 0)) | |
| 2034 return wrong_type_argument (Qmouse_event_p, event); | |
| 2035 else | |
| 2036 return make_int (x); | |
| 2037 } | |
| 2038 | |
| 2039 DEFUN ("event-y-pixel", Fevent_y_pixel, 1, 1, 0, /* | |
| 2040 Return the Y position in pixels of mouse event EVENT. | |
| 2041 The value returned is relative to the frame the event occurred in. | |
| 2042 This will signal an error if the event is not a mouse event. | |
| 2043 See also `mouse-event-p' `event-window-y-pixel'. | |
| 2044 */ | |
| 2045 (event)) | |
| 2046 { | |
| 2047 int x, y; | |
| 2048 | |
| 2049 CHECK_LIVE_EVENT (event); | |
| 2050 | |
| 2051 if (!event_x_y_pixel_internal (event, &x, &y, 0)) | |
| 2052 return wrong_type_argument (Qmouse_event_p, event); | |
| 2053 else | |
| 2054 return make_int (y); | |
| 2055 } | |
| 2056 | |
| 2057 /* Given an event, return a value: | |
| 2058 | |
| 2059 OVER_TOOLBAR: over one of the 4 frame toolbars | |
| 2060 OVER_MODELINE: over a modeline | |
| 2061 OVER_BORDER: over an internal border | |
| 2062 OVER_NOTHING: over the text area, but not over text | |
| 2063 OVER_OUTSIDE: outside of the frame border | |
| 2064 OVER_TEXT: over text in the text area | |
| 2065 OVER_V_DIVIDER: over windows vertical divider | |
| 2066 | |
| 2067 and return: | |
| 2068 | |
| 2069 The X char position in CHAR_X, if not a null pointer. | |
| 2070 The Y char position in CHAR_Y, if not a null pointer. | |
| 2071 (These last two values are relative to the window the event is over.) | |
| 2072 The window it's over in W, if not a null pointer. | |
| 2073 The buffer position it's over in BUFP, if not a null pointer. | |
| 2074 The closest buffer position in CLOSEST, if not a null pointer. | |
| 2075 | |
| 2076 OBJ_X, OBJ_Y, OBJ1, and OBJ2 are as in pixel_to_glyph_translation(). | |
| 2077 */ | |
| 2078 | |
| 2079 static int | |
| 2080 event_pixel_translation (Lisp_Object event, int *char_x, int *char_y, | |
| 2081 int *obj_x, int *obj_y, | |
| 665 | 2082 struct window **w, Charbpos *bufp, Charbpos *closest, |
| 428 | 2083 Charcount *modeline_closest, |
| 2084 Lisp_Object *obj1, Lisp_Object *obj2) | |
| 2085 { | |
| 2086 int pix_x = 0; | |
| 2087 int pix_y = 0; | |
| 2088 int result; | |
| 2089 Lisp_Object frame; | |
| 2090 | |
| 2091 int ret_x, ret_y, ret_obj_x, ret_obj_y; | |
| 2092 struct window *ret_w; | |
| 665 | 2093 Charbpos ret_bufp, ret_closest; |
| 428 | 2094 Charcount ret_modeline_closest; |
| 2095 Lisp_Object ret_obj1, ret_obj2; | |
| 2096 | |
| 2097 CHECK_LIVE_EVENT (event); | |
| 934 | 2098 frame = XEVENT_CHANNEL (event); |
| 2099 switch (XEVENT_TYPE (event)) | |
| 2100 { | |
| 2101 case pointer_motion_event : | |
| 1204 | 2102 pix_x = XEVENT_MOTION_X (event); |
| 2103 pix_y = XEVENT_MOTION_Y (event); | |
| 934 | 2104 break; |
| 2105 case button_press_event : | |
| 2106 case button_release_event : | |
| 1204 | 2107 pix_x = XEVENT_BUTTON_X (event); |
| 2108 pix_y = XEVENT_BUTTON_Y (event); | |
| 934 | 2109 break; |
| 2110 case misc_user_event : | |
| 1204 | 2111 pix_x = XEVENT_MISC_USER_X (event); |
| 2112 pix_y = XEVENT_MISC_USER_Y (event); | |
| 934 | 2113 break; |
| 2114 default: | |
| 2115 dead_wrong_type_argument (Qmouse_event_p, event); | |
| 2116 } | |
| 428 | 2117 |
| 2118 result = pixel_to_glyph_translation (XFRAME (frame), pix_x, pix_y, | |
| 2119 &ret_x, &ret_y, &ret_obj_x, &ret_obj_y, | |
| 2120 &ret_w, &ret_bufp, &ret_closest, | |
| 2121 &ret_modeline_closest, | |
| 2122 &ret_obj1, &ret_obj2); | |
| 2123 | |
| 2124 if (result == OVER_NOTHING || result == OVER_OUTSIDE) | |
| 2125 ret_bufp = 0; | |
| 2126 else if (ret_w && NILP (ret_w->buffer)) | |
| 2127 /* Why does this happen? (Does it still happen?) | |
| 2128 I guess the window has gotten reused as a non-leaf... */ | |
| 2129 ret_w = 0; | |
| 2130 | |
| 2131 /* #### pixel_to_glyph_translation() sometimes returns garbage... | |
| 2132 The word has type Lisp_Type_Record (presumably meaning `extent') but the | |
| 2133 pointer points to random memory, often filled with 0, sometimes not. | |
| 2134 */ | |
| 2135 /* #### Chuck, do we still need this crap? */ | |
|
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2136 #ifdef HAVE_TOOLBARS |
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2137 assert (NILP (ret_obj1) || GLYPHP (ret_obj1) |
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2138 || TOOLBAR_BUTTONP (ret_obj1)); |
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2139 #else |
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2140 assert (NILP (ret_obj1) || GLYPHP (ret_obj1)); |
| 428 | 2141 #endif |
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2142 assert (NILP (ret_obj2) || EXTENTP (ret_obj2) || CONSP (ret_obj2)); |
| 428 | 2143 |
| 2144 if (char_x) | |
| 2145 *char_x = ret_x; | |
| 2146 if (char_y) | |
| 2147 *char_y = ret_y; | |
| 2148 if (obj_x) | |
| 2149 *obj_x = ret_obj_x; | |
| 2150 if (obj_y) | |
| 2151 *obj_y = ret_obj_y; | |
| 2152 if (w) | |
| 2153 *w = ret_w; | |
| 2154 if (bufp) | |
| 2155 *bufp = ret_bufp; | |
| 2156 if (closest) | |
| 2157 *closest = ret_closest; | |
| 2158 if (modeline_closest) | |
| 2159 *modeline_closest = ret_modeline_closest; | |
| 2160 if (obj1) | |
| 2161 *obj1 = ret_obj1; | |
| 2162 if (obj2) | |
| 2163 *obj2 = ret_obj2; | |
| 2164 | |
| 2165 return result; | |
| 2166 } | |
| 2167 | |
| 2168 DEFUN ("event-over-text-area-p", Fevent_over_text_area_p, 1, 1, 0, /* | |
| 2169 Return t if the mouse event EVENT occurred over the text area of a window. | |
| 2170 The modeline is not considered to be part of the text area. | |
| 2171 */ | |
| 2172 (event)) | |
| 2173 { | |
| 2174 int result = event_pixel_translation (event, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0); | |
| 2175 | |
| 2176 return result == OVER_TEXT || result == OVER_NOTHING ? Qt : Qnil; | |
| 2177 } | |
| 2178 | |
| 2179 DEFUN ("event-over-modeline-p", Fevent_over_modeline_p, 1, 1, 0, /* | |
| 2180 Return t if the mouse event EVENT occurred over the modeline of a window. | |
| 2181 */ | |
| 2182 (event)) | |
| 2183 { | |
| 2184 int result = event_pixel_translation (event, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0); | |
| 2185 | |
| 2186 return result == OVER_MODELINE ? Qt : Qnil; | |
| 2187 } | |
| 2188 | |
| 2189 DEFUN ("event-over-border-p", Fevent_over_border_p, 1, 1, 0, /* | |
| 2190 Return t if the mouse event EVENT occurred over an internal border. | |
| 2191 */ | |
| 2192 (event)) | |
| 2193 { | |
| 2194 int result = event_pixel_translation (event, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0); | |
| 2195 | |
| 2196 return result == OVER_BORDER ? Qt : Qnil; | |
| 2197 } | |
| 2198 | |
| 2199 DEFUN ("event-over-toolbar-p", Fevent_over_toolbar_p, 1, 1, 0, /* | |
| 2200 Return t if the mouse event EVENT occurred over a toolbar. | |
| 2201 */ | |
| 2202 (event)) | |
| 2203 { | |
| 2204 int result = event_pixel_translation (event, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0); | |
| 2205 | |
| 2206 return result == OVER_TOOLBAR ? Qt : Qnil; | |
| 2207 } | |
| 2208 | |
| 2209 DEFUN ("event-over-vertical-divider-p", Fevent_over_vertical_divider_p, 1, 1, 0, /* | |
| 2210 Return t if the mouse event EVENT occurred over a window divider. | |
| 2211 */ | |
| 2212 (event)) | |
| 2213 { | |
| 2214 int result = event_pixel_translation (event, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0); | |
| 2215 | |
| 2216 return result == OVER_V_DIVIDER ? Qt : Qnil; | |
| 2217 } | |
| 2218 | |
| 2219 struct console * | |
| 2220 event_console_or_selected (Lisp_Object event) | |
| 2221 { | |
| 2222 Lisp_Object channel = EVENT_CHANNEL (XEVENT (event)); | |
| 2223 Lisp_Object console = CDFW_CONSOLE (channel); | |
| 2224 | |
| 2225 if (NILP (console)) | |
| 2226 console = Vselected_console; | |
| 2227 | |
| 2228 return XCONSOLE (console); | |
| 2229 } | |
| 2230 | |
| 2231 DEFUN ("event-channel", Fevent_channel, 1, 1, 0, /* | |
| 2232 Return the channel that the event EVENT occurred on. | |
| 2233 This will be a frame, device, console, or nil for some types | |
| 2234 of events (e.g. eval events). | |
| 2235 */ | |
| 2236 (event)) | |
| 2237 { | |
| 2238 CHECK_LIVE_EVENT (event); | |
| 2239 return EVENT_CHANNEL (XEVENT (event)); | |
| 2240 } | |
| 2241 | |
| 2242 DEFUN ("event-window", Fevent_window, 1, 1, 0, /* | |
| 2243 Return the window over which mouse event EVENT occurred. | |
| 2244 This may be nil if the event occurred in the border or over a toolbar. | |
| 2245 The modeline is considered to be within the window it describes. | |
| 2246 */ | |
| 2247 (event)) | |
| 2248 { | |
| 2249 struct window *w; | |
| 2250 | |
| 2251 event_pixel_translation (event, 0, 0, 0, 0, &w, 0, 0, 0, 0, 0); | |
| 2252 | |
| 2253 if (!w) | |
| 2254 return Qnil; | |
| 2255 else | |
| 2256 { | |
| 793 | 2257 return wrap_window (w); |
| 428 | 2258 } |
| 2259 } | |
| 2260 | |
| 2261 DEFUN ("event-point", Fevent_point, 1, 1, 0, /* | |
| 2262 Return the character position of the mouse event EVENT. | |
| 2263 If the event did not occur over a window, or did not occur over text, | |
| 2264 then this returns nil. Otherwise, it returns a position in the buffer | |
| 2265 visible in the event's window. | |
| 2266 */ | |
| 2267 (event)) | |
| 2268 { | |
| 665 | 2269 Charbpos bufp; |
| 428 | 2270 struct window *w; |
| 2271 | |
| 2272 event_pixel_translation (event, 0, 0, 0, 0, &w, &bufp, 0, 0, 0, 0); | |
| 2273 | |
| 2274 return w && bufp ? make_int (bufp) : Qnil; | |
| 2275 } | |
| 2276 | |
| 2277 DEFUN ("event-closest-point", Fevent_closest_point, 1, 1, 0, /* | |
| 2278 Return the character position closest to the mouse event EVENT. | |
| 2279 If the event did not occur over a window or over text, return the | |
| 2280 closest point to the location of the event. If the Y pixel position | |
| 2281 overlaps a window and the X pixel position is to the left of that | |
| 2282 window, the closest point is the beginning of the line containing the | |
| 2283 Y position. If the Y pixel position overlaps a window and the X pixel | |
| 2284 position is to the right of that window, the closest point is the end | |
| 2285 of the line containing the Y position. If the Y pixel position is | |
| 2286 above a window, return 0. If it is below the last character in a window, | |
| 2287 return the value of (window-end). | |
| 2288 */ | |
| 2289 (event)) | |
| 2290 { | |
| 665 | 2291 Charbpos bufp; |
| 428 | 2292 |
| 2293 event_pixel_translation (event, 0, 0, 0, 0, 0, 0, &bufp, 0, 0, 0); | |
| 2294 | |
| 2295 return bufp ? make_int (bufp) : Qnil; | |
| 2296 } | |
| 2297 | |
| 2298 DEFUN ("event-x", Fevent_x, 1, 1, 0, /* | |
| 2299 Return the X position of the mouse event EVENT in characters. | |
| 2300 This is relative to the window the event occurred over. | |
| 2301 */ | |
| 2302 (event)) | |
| 2303 { | |
| 2304 int char_x; | |
| 2305 | |
| 2306 event_pixel_translation (event, &char_x, 0, 0, 0, 0, 0, 0, 0, 0, 0); | |
| 2307 | |
| 2308 return make_int (char_x); | |
| 2309 } | |
| 2310 | |
| 2311 DEFUN ("event-y", Fevent_y, 1, 1, 0, /* | |
| 2312 Return the Y position of the mouse event EVENT in characters. | |
| 2313 This is relative to the window the event occurred over. | |
| 2314 */ | |
| 2315 (event)) | |
| 2316 { | |
| 2317 int char_y; | |
| 2318 | |
| 2319 event_pixel_translation (event, 0, &char_y, 0, 0, 0, 0, 0, 0, 0, 0); | |
| 2320 | |
| 2321 return make_int (char_y); | |
| 2322 } | |
| 2323 | |
| 2324 DEFUN ("event-modeline-position", Fevent_modeline_position, 1, 1, 0, /* | |
| 2325 Return the character position in the modeline that EVENT occurred over. | |
| 2326 EVENT should be a mouse event. If EVENT did not occur over a modeline, | |
| 2327 nil is returned. You can determine the actual character that the | |
| 2328 event occurred over by looking in `generated-modeline-string' at the | |
| 2329 returned character position. Note that `generated-modeline-string' | |
| 2330 is buffer-local, and you must use EVENT's buffer when retrieving | |
| 2331 `generated-modeline-string' in order to get accurate results. | |
| 2332 */ | |
| 2333 (event)) | |
| 2334 { | |
| 2335 Charcount mbufp; | |
| 2336 int where; | |
| 2337 | |
| 2338 where = event_pixel_translation (event, 0, 0, 0, 0, 0, 0, 0, &mbufp, 0, 0); | |
| 2339 | |
| 2340 return (mbufp < 0 || where != OVER_MODELINE) ? Qnil : make_int (mbufp); | |
| 2341 } | |
| 2342 | |
| 2343 DEFUN ("event-glyph", Fevent_glyph, 1, 1, 0, /* | |
| 2344 Return the glyph that the mouse event EVENT occurred over, or nil. | |
| 2345 */ | |
| 2346 (event)) | |
| 2347 { | |
| 2348 Lisp_Object glyph; | |
| 2349 struct window *w; | |
| 2350 | |
| 2351 event_pixel_translation (event, 0, 0, 0, 0, &w, 0, 0, 0, &glyph, 0); | |
| 2352 | |
| 2353 return w && GLYPHP (glyph) ? glyph : Qnil; | |
| 2354 } | |
| 2355 | |
| 2356 DEFUN ("event-glyph-extent", Fevent_glyph_extent, 1, 1, 0, /* | |
| 2357 Return the extent of the glyph that the mouse event EVENT occurred over. | |
| 2358 If the event did not occur over a glyph, nil is returned. | |
| 2359 */ | |
| 2360 (event)) | |
| 2361 { | |
| 2362 Lisp_Object extent; | |
| 2363 struct window *w; | |
| 2364 | |
| 2365 event_pixel_translation (event, 0, 0, 0, 0, &w, 0, 0, 0, 0, &extent); | |
| 2366 | |
| 2367 return w && EXTENTP (extent) ? extent : Qnil; | |
| 2368 } | |
| 2369 | |
| 2370 DEFUN ("event-glyph-x-pixel", Fevent_glyph_x_pixel, 1, 1, 0, /* | |
| 2371 Return the X pixel position of EVENT relative to the glyph it occurred over. | |
| 2372 EVENT should be a mouse event. If the event did not occur over a glyph, | |
| 2373 nil is returned. | |
| 2374 */ | |
| 2375 (event)) | |
| 2376 { | |
| 2377 Lisp_Object extent; | |
| 2378 struct window *w; | |
| 2379 int obj_x; | |
| 2380 | |
| 2381 event_pixel_translation (event, 0, 0, &obj_x, 0, &w, 0, 0, 0, 0, &extent); | |
| 2382 | |
| 2383 return w && EXTENTP (extent) ? make_int (obj_x) : Qnil; | |
| 2384 } | |
| 2385 | |
| 2386 DEFUN ("event-glyph-y-pixel", Fevent_glyph_y_pixel, 1, 1, 0, /* | |
| 2387 Return the Y pixel position of EVENT relative to the glyph it occurred over. | |
| 2388 EVENT should be a mouse event. If the event did not occur over a glyph, | |
| 2389 nil is returned. | |
| 2390 */ | |
| 2391 (event)) | |
| 2392 { | |
| 2393 Lisp_Object extent; | |
| 2394 struct window *w; | |
| 2395 int obj_y; | |
| 2396 | |
| 2397 event_pixel_translation (event, 0, 0, 0, &obj_y, &w, 0, 0, 0, 0, &extent); | |
| 2398 | |
| 2399 return w && EXTENTP (extent) ? make_int (obj_y) : Qnil; | |
| 2400 } | |
| 2401 | |
| 2402 DEFUN ("event-toolbar-button", Fevent_toolbar_button, 1, 1, 0, /* | |
| 2403 Return the toolbar button that the mouse event EVENT occurred over. | |
| 2404 If the event did not occur over a toolbar button, nil is returned. | |
| 2405 */ | |
| 2340 | 2406 (USED_IF_TOOLBARS (event))) |
| 428 | 2407 { |
| 2408 #ifdef HAVE_TOOLBARS | |
| 2409 Lisp_Object button; | |
| 2410 | |
| 2411 int result = event_pixel_translation (event, 0, 0, 0, 0, 0, 0, 0, 0, &button, 0); | |
| 2412 | |
| 2413 return result == OVER_TOOLBAR && TOOLBAR_BUTTONP (button) ? button : Qnil; | |
| 2414 #else | |
| 2415 return Qnil; | |
| 2416 #endif | |
| 2417 } | |
| 2418 | |
| 2419 DEFUN ("event-process", Fevent_process, 1, 1, 0, /* | |
| 444 | 2420 Return the process of the process-output event EVENT. |
| 428 | 2421 */ |
| 2422 (event)) | |
| 2423 { | |
| 934 | 2424 CHECK_EVENT_TYPE (event, process_event, Qprocess_event_p); |
| 1204 | 2425 return XEVENT_PROCESS_PROCESS (event); |
| 428 | 2426 } |
| 2427 | |
| 2428 DEFUN ("event-function", Fevent_function, 1, 1, 0, /* | |
| 2429 Return the callback function of EVENT. | |
| 2430 EVENT should be a timeout, misc-user, or eval event. | |
| 2431 */ | |
| 2432 (event)) | |
| 2433 { | |
| 2434 again: | |
| 2435 CHECK_LIVE_EVENT (event); | |
| 934 | 2436 switch (XEVENT_TYPE (event)) |
| 2437 { | |
| 2438 case timeout_event: | |
| 1204 | 2439 return XEVENT_TIMEOUT_FUNCTION (event); |
| 934 | 2440 case misc_user_event: |
| 1204 | 2441 return XEVENT_MISC_USER_FUNCTION (event); |
| 934 | 2442 case eval_event: |
| 1204 | 2443 return XEVENT_EVAL_FUNCTION (event); |
| 934 | 2444 default: |
| 2445 event = wrong_type_argument (intern ("timeout-or-eval-event-p"), event); | |
| 2446 goto again; | |
| 2447 } | |
| 428 | 2448 } |
| 2449 | |
| 2450 DEFUN ("event-object", Fevent_object, 1, 1, 0, /* | |
| 2451 Return the callback function argument of EVENT. | |
| 2452 EVENT should be a timeout, misc-user, or eval event. | |
| 2453 */ | |
| 2454 (event)) | |
| 2455 { | |
| 2456 again: | |
| 2457 CHECK_LIVE_EVENT (event); | |
| 934 | 2458 switch (XEVENT_TYPE (event)) |
| 2459 { | |
| 2460 case timeout_event: | |
| 1204 | 2461 return XEVENT_TIMEOUT_OBJECT (event); |
| 934 | 2462 case misc_user_event: |
| 1204 | 2463 return XEVENT_MISC_USER_OBJECT (event); |
| 934 | 2464 case eval_event: |
| 1204 | 2465 return XEVENT_EVAL_OBJECT (event); |
| 934 | 2466 default: |
| 2467 event = wrong_type_argument (intern ("timeout-or-eval-event-p"), event); | |
| 2468 goto again; | |
| 2469 } | |
| 428 | 2470 } |
| 2471 | |
| 2472 DEFUN ("event-properties", Fevent_properties, 1, 1, 0, /* | |
| 2473 Return a list of all of the properties of EVENT. | |
| 2474 This is in the form of a property list (alternating keyword/value pairs). | |
| 2475 */ | |
| 2476 (event)) | |
| 2477 { | |
| 2478 Lisp_Object props = Qnil; | |
| 440 | 2479 Lisp_Event *e; |
| 428 | 2480 struct gcpro gcpro1; |
| 2481 | |
| 2482 CHECK_LIVE_EVENT (event); | |
| 2483 e = XEVENT (event); | |
| 2484 GCPRO1 (props); | |
| 2485 | |
| 2486 props = cons3 (Qtimestamp, Fevent_timestamp (event), props); | |
| 2487 | |
| 934 | 2488 switch (EVENT_TYPE (e)) |
| 428 | 2489 { |
| 2500 | 2490 default: ABORT (); |
| 428 | 2491 |
| 2492 case process_event: | |
| 1204 | 2493 props = cons3 (Qprocess, EVENT_PROCESS_PROCESS (e), props); |
| 428 | 2494 break; |
| 2495 | |
| 2496 case timeout_event: | |
| 2497 props = cons3 (Qobject, Fevent_object (event), props); | |
| 2498 props = cons3 (Qfunction, Fevent_function (event), props); | |
| 1204 | 2499 props = cons3 (Qid, make_int (EVENT_TIMEOUT_ID_NUMBER (e)), props); |
| 428 | 2500 break; |
| 2501 | |
| 2502 case key_press_event: | |
| 2503 props = cons3 (Qmodifiers, Fevent_modifiers (event), props); | |
| 2504 props = cons3 (Qkey, Fevent_key (event), props); | |
| 2505 break; | |
| 2506 | |
| 2507 case button_press_event: | |
| 2508 case button_release_event: | |
| 2509 props = cons3 (Qy, Fevent_y_pixel (event), props); | |
| 2510 props = cons3 (Qx, Fevent_x_pixel (event), props); | |
| 2511 props = cons3 (Qmodifiers, Fevent_modifiers (event), props); | |
| 2512 props = cons3 (Qbutton, Fevent_button (event), props); | |
| 2513 break; | |
| 2514 | |
| 2515 case pointer_motion_event: | |
| 2516 props = cons3 (Qmodifiers, Fevent_modifiers (event), props); | |
| 2517 props = cons3 (Qy, Fevent_y_pixel (event), props); | |
| 2518 props = cons3 (Qx, Fevent_x_pixel (event), props); | |
| 2519 break; | |
| 2520 | |
| 2521 case misc_user_event: | |
| 2522 props = cons3 (Qobject, Fevent_object (event), props); | |
| 2523 props = cons3 (Qfunction, Fevent_function (event), props); | |
| 2524 props = cons3 (Qy, Fevent_y_pixel (event), props); | |
| 2525 props = cons3 (Qx, Fevent_x_pixel (event), props); | |
| 2526 props = cons3 (Qmodifiers, Fevent_modifiers (event), props); | |
| 2527 props = cons3 (Qbutton, Fevent_button (event), props); | |
| 2528 break; | |
| 2529 | |
| 2530 case eval_event: | |
| 2531 props = cons3 (Qobject, Fevent_object (event), props); | |
| 2532 props = cons3 (Qfunction, Fevent_function (event), props); | |
| 2533 break; | |
| 2534 | |
| 2535 case magic_eval_event: | |
| 2536 case magic_event: | |
| 2537 break; | |
| 2538 | |
| 2539 case empty_event: | |
| 2540 RETURN_UNGCPRO (Qnil); | |
| 2541 break; | |
| 2542 } | |
| 2543 | |
| 2544 props = cons3 (Qchannel, Fevent_channel (event), props); | |
| 2545 UNGCPRO; | |
| 2546 | |
| 2547 return props; | |
| 2548 } | |
| 2549 | |
| 2550 | |
| 2551 /************************************************************************/ | |
| 2552 /* initialization */ | |
| 2553 /************************************************************************/ | |
| 2554 | |
| 2555 void | |
| 2556 syms_of_events (void) | |
| 2557 { | |
|
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2558 INIT_LISP_OBJECT (event); |
| 1204 | 2559 #ifdef EVENT_DATA_AS_OBJECTS |
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2560 INIT_LISP_OBJECT (key_data); |
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2561 INIT_LISP_OBJECT (button_data); |
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2562 INIT_LISP_OBJECT (motion_data); |
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2563 INIT_LISP_OBJECT (process_data); |
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2564 INIT_LISP_OBJECT (timeout_data); |
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2565 INIT_LISP_OBJECT (eval_data); |
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2566 INIT_LISP_OBJECT (misc_user_data); |
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2567 INIT_LISP_OBJECT (magic_eval_data); |
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2568 INIT_LISP_OBJECT (magic_data); |
| 1204 | 2569 #endif /* EVENT_DATA_AS_OBJECTS */ |
| 442 | 2570 |
| 428 | 2571 DEFSUBR (Fcharacter_to_event); |
| 2572 DEFSUBR (Fevent_to_character); | |
| 2573 | |
| 2574 DEFSUBR (Fmake_event); | |
| 2575 DEFSUBR (Fdeallocate_event); | |
| 2576 DEFSUBR (Fcopy_event); | |
| 2577 DEFSUBR (Feventp); | |
| 2578 DEFSUBR (Fevent_live_p); | |
| 2579 DEFSUBR (Fevent_type); | |
| 2580 DEFSUBR (Fevent_properties); | |
| 2581 | |
| 2582 DEFSUBR (Fevent_timestamp); | |
| 442 | 2583 DEFSUBR (Fevent_timestamp_lessp); |
| 428 | 2584 DEFSUBR (Fevent_key); |
| 2585 DEFSUBR (Fevent_button); | |
| 2586 DEFSUBR (Fevent_modifier_bits); | |
| 2587 DEFSUBR (Fevent_modifiers); | |
| 2588 DEFSUBR (Fevent_x_pixel); | |
| 2589 DEFSUBR (Fevent_y_pixel); | |
| 2590 DEFSUBR (Fevent_window_x_pixel); | |
| 2591 DEFSUBR (Fevent_window_y_pixel); | |
| 2592 DEFSUBR (Fevent_over_text_area_p); | |
| 2593 DEFSUBR (Fevent_over_modeline_p); | |
| 2594 DEFSUBR (Fevent_over_border_p); | |
| 2595 DEFSUBR (Fevent_over_toolbar_p); | |
| 2596 DEFSUBR (Fevent_over_vertical_divider_p); | |
| 2597 DEFSUBR (Fevent_channel); | |
| 2598 DEFSUBR (Fevent_window); | |
| 2599 DEFSUBR (Fevent_point); | |
| 2600 DEFSUBR (Fevent_closest_point); | |
| 2601 DEFSUBR (Fevent_x); | |
| 2602 DEFSUBR (Fevent_y); | |
| 2603 DEFSUBR (Fevent_modeline_position); | |
| 2604 DEFSUBR (Fevent_glyph); | |
| 2605 DEFSUBR (Fevent_glyph_extent); | |
| 2606 DEFSUBR (Fevent_glyph_x_pixel); | |
| 2607 DEFSUBR (Fevent_glyph_y_pixel); | |
| 2608 DEFSUBR (Fevent_toolbar_button); | |
| 2609 DEFSUBR (Fevent_process); | |
| 2610 DEFSUBR (Fevent_function); | |
| 2611 DEFSUBR (Fevent_object); | |
| 2612 | |
| 563 | 2613 DEFSYMBOL (Qeventp); |
| 2614 DEFSYMBOL (Qevent_live_p); | |
| 2615 DEFSYMBOL (Qkey_press_event_p); | |
| 2616 DEFSYMBOL (Qbutton_event_p); | |
| 2617 DEFSYMBOL (Qmouse_event_p); | |
| 2618 DEFSYMBOL (Qprocess_event_p); | |
| 2619 DEFSYMBOL (Qkey_press); | |
| 2620 DEFSYMBOL (Qbutton_press); | |
| 2621 DEFSYMBOL (Qbutton_release); | |
| 2622 DEFSYMBOL (Qmisc_user); | |
| 2828 | 2623 DEFSYMBOL (Qcharacter_of_keysym); |
| 563 | 2624 DEFSYMBOL (Qascii_character); |
| 428 | 2625 |
| 2626 defsymbol (&QKbackspace, "backspace"); | |
| 2627 defsymbol (&QKtab, "tab"); | |
| 2628 defsymbol (&QKlinefeed, "linefeed"); | |
| 2629 defsymbol (&QKreturn, "return"); | |
| 2630 defsymbol (&QKescape, "escape"); | |
| 2631 defsymbol (&QKspace, "space"); | |
| 2632 defsymbol (&QKdelete, "delete"); | |
| 2633 } | |
| 2634 | |
| 2635 | |
| 2636 void | |
| 2637 reinit_vars_of_events (void) | |
| 2638 { | |
| 2639 Vevent_resource = Qnil; | |
| 3092 | 2640 #ifdef NEW_GC |
|
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2641 staticpro_nodump (&Vevent_resource); |
| 3092 | 2642 #endif /* NEW_GC */ |
| 428 | 2643 } |
| 2644 | |
| 2645 void | |
| 2646 vars_of_events (void) | |
| 2647 { | |
| 2648 } |