Mercurial > hg > xemacs-beta
annotate src/events.c @ 5191:71ee43b8a74d
Add #'equalp as a hash test by default; add #'define-hash-table-test, GNU API
tests/ChangeLog addition:
2010-04-05 Aidan Kehoe <kehoea@parhasard.net>
* automated/hash-table-tests.el:
Test the new built-in #'equalp hash table test. Test
#'define-hash-table-test.
* automated/lisp-tests.el:
When asserting that two objects are #'equalp, also assert that
their #'equalp-hash is identical.
man/ChangeLog addition:
2010-04-03 Aidan Kehoe <kehoea@parhasard.net>
* lispref/hash-tables.texi (Introduction to Hash Tables):
Document that we now support #'equalp as a hash table test by
default, and mention #'define-hash-table-test.
(Working With Hash Tables): Document #'define-hash-table-test.
src/ChangeLog addition:
2010-04-05 Aidan Kehoe <kehoea@parhasard.net>
* elhash.h:
* elhash.c (struct Hash_Table_Test, lisp_object_eql_equal)
(lisp_object_eql_hash, lisp_object_equal_equal)
(lisp_object_equal_hash, lisp_object_equalp_hash)
(lisp_object_equalp_equal, lisp_object_general_hash)
(lisp_object_general_equal, Feq_hash, Feql_hash, Fequal_hash)
(Fequalp_hash, define_hash_table_test, Fdefine_hash_table_test)
(init_elhash_once_early, mark_hash_table_tests, string_equalp_hash):
* glyphs.c (vars_of_glyphs):
Add a new hash table test in C, #'equalp.
Make it possible to specify new hash table tests with functions
define_hash_table_test, #'define-hash-table-test.
Use define_hash_table_test() in glyphs.c.
Expose the hash functions (besides that used for #'equal) to Lisp,
for people writing functions to be used with #'define-hash-table-test.
Call define_hash_table_test() very early in temacs, to create the
built-in hash table tests.
* ui-gtk.c (emacs_gtk_boxed_hash):
* specifier.h (struct specifier_methods):
* specifier.c (specifier_hash):
* rangetab.c (range_table_entry_hash, range_table_hash):
* number.c (bignum_hash, ratio_hash, bigfloat_hash):
* marker.c (marker_hash):
* lrecord.h (struct lrecord_implementation):
* keymap.c (keymap_hash):
* gui.c (gui_item_id_hash, gui_item_hash):
* glyphs.c (image_instance_hash, glyph_hash):
* glyphs-x.c (x_image_instance_hash):
* glyphs-msw.c (mswindows_image_instance_hash):
* glyphs-gtk.c (gtk_image_instance_hash):
* frame-msw.c (mswindows_set_title_from_ibyte):
* fontcolor.c (color_instance_hash, font_instance_hash):
* fontcolor-x.c (x_color_instance_hash):
* fontcolor-tty.c (tty_color_instance_hash):
* fontcolor-msw.c (mswindows_color_instance_hash):
* fontcolor-gtk.c (gtk_color_instance_hash):
* fns.c (bit_vector_hash):
* floatfns.c (float_hash):
* faces.c (face_hash):
* extents.c (extent_hash):
* events.c (event_hash):
* data.c (weak_list_hash, weak_box_hash):
* chartab.c (char_table_entry_hash, char_table_hash):
* bytecode.c (compiled_function_hash):
* alloc.c (vector_hash):
Change the various object hash methods to take a new EQUALP
parameter, hashing appropriately for #'equalp if it is true.
| author | Aidan Kehoe <kehoea@parhasard.net> |
|---|---|
| date | Mon, 05 Apr 2010 13:03:35 +0100 |
| parents | 1fae11d56ad2 |
| children | c096d8051f89 308d34e9f07d |
| 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 { | |
| 644 CHECK_NATNUM (value); | |
| 645 check_int_range (XINT (value), 0, 7); | |
| 428 | 646 |
| 1204 | 647 switch (EVENT_TYPE (e)) |
| 442 | 648 { |
| 649 case button_press_event: | |
| 650 case button_release_event: | |
| 1204 | 651 SET_EVENT_BUTTON_BUTTON (e, XINT (value)); |
| 442 | 652 break; |
| 653 case misc_user_event: | |
| 1204 | 654 SET_EVENT_MISC_USER_BUTTON (e, XINT (value)); |
| 442 | 655 break; |
| 656 default: | |
| 657 WRONG_EVENT_TYPE_FOR_PROPERTY (type, keyword); | |
| 658 break; | |
| 659 } | |
| 660 } | |
| 661 else if (EQ (keyword, Qmodifiers)) | |
| 662 { | |
| 663 int modifiers = 0; | |
| 428 | 664 |
| 442 | 665 EXTERNAL_LIST_LOOP_2 (sym, value) |
| 666 { | |
| 667 if (EQ (sym, Qcontrol)) modifiers |= XEMACS_MOD_CONTROL; | |
| 668 else if (EQ (sym, Qmeta)) modifiers |= XEMACS_MOD_META; | |
| 669 else if (EQ (sym, Qsuper)) modifiers |= XEMACS_MOD_SUPER; | |
| 670 else if (EQ (sym, Qhyper)) modifiers |= XEMACS_MOD_HYPER; | |
| 671 else if (EQ (sym, Qalt)) modifiers |= XEMACS_MOD_ALT; | |
| 672 else if (EQ (sym, Qsymbol)) modifiers |= XEMACS_MOD_ALT; | |
| 673 else if (EQ (sym, Qshift)) modifiers |= XEMACS_MOD_SHIFT; | |
| 674 else if (EQ (sym, Qbutton1)) modifiers |= XEMACS_MOD_BUTTON1; | |
| 675 else if (EQ (sym, Qbutton2)) modifiers |= XEMACS_MOD_BUTTON2; | |
| 676 else if (EQ (sym, Qbutton3)) modifiers |= XEMACS_MOD_BUTTON3; | |
| 677 else if (EQ (sym, Qbutton4)) modifiers |= XEMACS_MOD_BUTTON4; | |
| 678 else if (EQ (sym, Qbutton5)) modifiers |= XEMACS_MOD_BUTTON5; | |
| 679 else | |
| 563 | 680 invalid_constant ("Invalid key modifier", sym); |
| 442 | 681 } |
| 428 | 682 |
| 1204 | 683 switch (EVENT_TYPE (e)) |
| 442 | 684 { |
| 685 case key_press_event: | |
| 1204 | 686 SET_EVENT_KEY_MODIFIERS (e, modifiers); |
| 442 | 687 break; |
| 688 case button_press_event: | |
| 689 case button_release_event: | |
| 1204 | 690 SET_EVENT_BUTTON_MODIFIERS (e, modifiers); |
| 442 | 691 break; |
| 692 case pointer_motion_event: | |
| 1204 | 693 SET_EVENT_MOTION_MODIFIERS (e, modifiers); |
| 442 | 694 break; |
| 695 case misc_user_event: | |
| 1204 | 696 SET_EVENT_MISC_USER_MODIFIERS (e, modifiers); |
| 442 | 697 break; |
| 698 default: | |
| 699 WRONG_EVENT_TYPE_FOR_PROPERTY (type, keyword); | |
| 700 break; | |
| 701 } | |
| 702 } | |
| 703 else if (EQ (keyword, Qx)) | |
| 704 { | |
| 1204 | 705 switch (EVENT_TYPE (e)) |
| 442 | 706 { |
| 707 case pointer_motion_event: | |
| 708 case button_press_event: | |
| 709 case button_release_event: | |
| 710 case misc_user_event: | |
| 711 /* Allow negative values, so we can specify toolbar | |
| 712 positions. */ | |
| 713 CHECK_INT (value); | |
| 714 coord_x = XINT (value); | |
| 715 break; | |
| 716 default: | |
| 717 WRONG_EVENT_TYPE_FOR_PROPERTY (type, keyword); | |
| 718 break; | |
| 719 } | |
| 720 } | |
| 721 else if (EQ (keyword, Qy)) | |
| 722 { | |
| 1204 | 723 switch (EVENT_TYPE (e)) |
| 442 | 724 { |
| 725 case pointer_motion_event: | |
| 726 case button_press_event: | |
| 727 case button_release_event: | |
| 728 case misc_user_event: | |
| 729 /* Allow negative values; see above. */ | |
| 730 CHECK_INT (value); | |
| 731 coord_y = XINT (value); | |
| 732 break; | |
| 733 default: | |
| 734 WRONG_EVENT_TYPE_FOR_PROPERTY (type, keyword); | |
| 735 break; | |
| 736 } | |
| 737 } | |
| 738 else if (EQ (keyword, Qtimestamp)) | |
| 739 { | |
| 740 CHECK_NATNUM (value); | |
| 934 | 741 SET_EVENT_TIMESTAMP (e, XINT (value)); |
| 442 | 742 } |
| 743 else if (EQ (keyword, Qfunction)) | |
| 744 { | |
| 1204 | 745 switch (EVENT_TYPE (e)) |
| 442 | 746 { |
| 747 case misc_user_event: | |
| 1204 | 748 SET_EVENT_MISC_USER_FUNCTION (e, value); |
| 442 | 749 break; |
| 750 default: | |
| 751 WRONG_EVENT_TYPE_FOR_PROPERTY (type, keyword); | |
| 752 break; | |
| 753 } | |
| 754 } | |
| 755 else if (EQ (keyword, Qobject)) | |
| 756 { | |
| 1204 | 757 switch (EVENT_TYPE (e)) |
| 442 | 758 { |
| 759 case misc_user_event: | |
| 1204 | 760 SET_EVENT_MISC_USER_OBJECT (e, value); |
| 442 | 761 break; |
| 762 default: | |
| 763 WRONG_EVENT_TYPE_FOR_PROPERTY (type, keyword); | |
| 764 break; | |
| 765 } | |
| 766 } | |
| 767 else | |
| 563 | 768 invalid_constant_2 ("Invalid property", keyword, value); |
| 442 | 769 } |
| 770 } | |
| 428 | 771 |
| 772 /* Insert the channel, if missing. */ | |
| 773 if (NILP (EVENT_CHANNEL (e))) | |
| 774 { | |
| 934 | 775 if (EVENT_TYPE (e) == key_press_event) |
| 428 | 776 EVENT_CHANNEL (e) = Vselected_console; |
| 777 else | |
| 778 EVENT_CHANNEL (e) = Fselected_frame (Qnil); | |
| 779 } | |
| 780 | |
| 781 /* Fevent_properties, Fevent_x_pixel, etc. work with pixels relative | |
| 782 to the frame, so we must adjust accordingly. */ | |
| 783 if (FRAMEP (EVENT_CHANNEL (e))) | |
| 784 { | |
| 785 coord_x += FRAME_REAL_LEFT_TOOLBAR_WIDTH (XFRAME (EVENT_CHANNEL (e))); | |
| 786 coord_y += FRAME_REAL_TOP_TOOLBAR_HEIGHT (XFRAME (EVENT_CHANNEL (e))); | |
| 787 | |
| 788 switch (e->event_type) | |
| 789 { | |
| 790 case pointer_motion_event: | |
| 1204 | 791 SET_EVENT_MOTION_X (e, coord_x); |
| 792 SET_EVENT_MOTION_Y (e, coord_y); | |
| 428 | 793 break; |
| 794 case button_press_event: | |
| 795 case button_release_event: | |
| 1204 | 796 SET_EVENT_BUTTON_X (e, coord_x); |
| 797 SET_EVENT_BUTTON_Y (e, coord_y); | |
| 428 | 798 break; |
| 799 case misc_user_event: | |
| 1204 | 800 SET_EVENT_MISC_USER_X (e, coord_x); |
| 801 SET_EVENT_MISC_USER_Y (e, coord_y); | |
| 428 | 802 break; |
| 803 default: | |
| 2500 | 804 ABORT (); |
| 428 | 805 } |
| 806 } | |
| 807 | |
| 808 /* Finally, do some more validation. */ | |
| 1204 | 809 switch (EVENT_TYPE (e)) |
| 428 | 810 { |
| 811 case key_press_event: | |
| 1204 | 812 if (UNBOUNDP (EVENT_KEY_KEYSYM (e))) |
| 563 | 813 sferror ("A key must be specified to make a keypress event", |
| 442 | 814 plist); |
| 428 | 815 break; |
| 816 case button_press_event: | |
| 1204 | 817 if (!EVENT_BUTTON_BUTTON (e)) |
| 563 | 818 sferror |
| 442 | 819 ("A button must be specified to make a button-press event", |
| 820 plist); | |
| 428 | 821 break; |
| 822 case button_release_event: | |
| 1204 | 823 if (!EVENT_BUTTON_BUTTON (e)) |
| 563 | 824 sferror |
| 442 | 825 ("A button must be specified to make a button-release event", |
| 826 plist); | |
| 428 | 827 break; |
| 828 case misc_user_event: | |
| 1204 | 829 if (NILP (EVENT_MISC_USER_FUNCTION (e))) |
| 563 | 830 sferror ("A function must be specified to make a misc-user event", |
| 442 | 831 plist); |
| 428 | 832 break; |
| 833 default: | |
| 834 break; | |
| 835 } | |
| 836 | |
| 837 UNGCPRO; | |
| 838 return event; | |
| 839 } | |
| 840 | |
| 841 DEFUN ("deallocate-event", Fdeallocate_event, 1, 1, 0, /* | |
| 842 Allow the given event structure to be reused. | |
| 843 You MUST NOT use this event object after calling this function with it. | |
| 844 You will lose. It is not necessary to call this function, as event | |
| 845 objects are garbage-collected like all other objects; however, it may | |
| 846 be more efficient to explicitly deallocate events when you are sure | |
| 847 that it is safe to do so. | |
| 848 */ | |
| 849 (event)) | |
| 850 { | |
| 851 CHECK_EVENT (event); | |
| 852 | |
| 853 if (XEVENT_TYPE (event) == dead_event) | |
| 563 | 854 invalid_argument ("this event is already deallocated!", Qunbound); |
| 428 | 855 |
| 856 assert (XEVENT_TYPE (event) <= last_event_type); | |
| 857 | |
| 858 #if 0 | |
| 859 { | |
| 860 int i, len; | |
| 861 | |
|
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862 assert (!(EQ (event, Vlast_command_event) || |
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863 EQ (event, Vlast_input_event) || |
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864 EQ (event, Vunread_command_event))); |
| 428 | 865 |
| 866 len = XVECTOR_LENGTH (Vthis_command_keys); | |
| 867 for (i = 0; i < len; i++) | |
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868 assert (!EQ (event, XVECTOR_DATA (Vthis_command_keys) [i])); |
| 428 | 869 if (!NILP (Vrecent_keys_ring)) |
| 870 { | |
| 871 int recent_ring_len = XVECTOR_LENGTH (Vrecent_keys_ring); | |
| 872 for (i = 0; i < recent_ring_len; i++) | |
|
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873 assert (!EQ (event, XVECTOR_DATA (Vrecent_keys_ring) [i])); |
| 428 | 874 } |
| 875 } | |
| 876 #endif /* 0 */ | |
| 877 | |
| 878 assert (!EQ (event, Vevent_resource)); | |
| 879 deinitialize_event (event); | |
| 880 #ifndef ALLOC_NO_POOLS | |
| 881 XSET_EVENT_NEXT (event, Vevent_resource); | |
| 882 Vevent_resource = event; | |
| 883 #endif | |
| 884 return Qnil; | |
| 885 } | |
| 886 | |
| 887 DEFUN ("copy-event", Fcopy_event, 1, 2, 0, /* | |
| 444 | 888 Make a copy of the event object EVENT1. |
| 889 If a second event argument EVENT2 is given, EVENT1 is copied into | |
| 890 EVENT2 and EVENT2 is returned. If EVENT2 is not supplied (or is nil) | |
| 891 then a new event will be made as with `make-event'. See also the | |
| 892 function `deallocate-event'. | |
| 428 | 893 */ |
| 894 (event1, event2)) | |
| 895 { | |
| 896 CHECK_LIVE_EVENT (event1); | |
| 897 if (NILP (event2)) | |
| 898 event2 = Fmake_event (Qnil, Qnil); | |
| 430 | 899 else |
| 900 { | |
| 901 CHECK_LIVE_EVENT (event2); | |
| 902 if (EQ (event1, event2)) | |
| 563 | 903 return signal_continuable_error_2 |
| 904 (Qinvalid_argument, | |
| 905 "copy-event called with `eq' events", event1, event2); | |
| 430 | 906 } |
| 428 | 907 |
| 908 assert (XEVENT_TYPE (event1) <= last_event_type); | |
| 909 assert (XEVENT_TYPE (event2) <= last_event_type); | |
| 910 | |
| 934 | 911 XSET_EVENT_TYPE (event2, XEVENT_TYPE (event1)); |
| 912 XSET_EVENT_CHANNEL (event2, XEVENT_CHANNEL (event1)); | |
| 913 XSET_EVENT_TIMESTAMP (event2, XEVENT_TIMESTAMP (event1)); | |
| 1204 | 914 |
| 915 #ifdef EVENT_DATA_AS_OBJECTS | |
| 916 copy_lisp_object (XEVENT_DATA (event2), XEVENT_DATA (event1)); | |
| 917 #else | |
| 918 XEVENT (event2)->event = XEVENT (event1)->event; | |
| 919 #endif | |
| 934 | 920 return event2; |
| 428 | 921 } |
| 922 | |
| 923 | |
| 771 | 924 /************************************************************************/ |
| 925 /* event chain functions */ | |
| 926 /************************************************************************/ | |
| 428 | 927 |
| 928 /* Given a chain of events (or possibly nil), deallocate them all. */ | |
| 929 | |
| 930 void | |
| 931 deallocate_event_chain (Lisp_Object event_chain) | |
| 932 { | |
| 933 while (!NILP (event_chain)) | |
| 934 { | |
| 935 Lisp_Object next = XEVENT_NEXT (event_chain); | |
| 936 Fdeallocate_event (event_chain); | |
| 937 event_chain = next; | |
| 938 } | |
| 939 } | |
| 940 | |
| 941 /* Return the last event in a chain. | |
| 942 NOTE: You cannot pass nil as a value here! The routine will | |
| 943 abort if you do. */ | |
| 944 | |
| 945 Lisp_Object | |
| 946 event_chain_tail (Lisp_Object event_chain) | |
| 947 { | |
| 948 while (1) | |
| 949 { | |
| 950 Lisp_Object next = XEVENT_NEXT (event_chain); | |
| 951 if (NILP (next)) | |
| 952 return event_chain; | |
| 953 event_chain = next; | |
| 954 } | |
| 955 } | |
| 956 | |
| 957 /* Enqueue a single event onto the end of a chain of events. | |
| 958 HEAD points to the first event in the chain, TAIL to the last event. | |
| 959 If the chain is empty, both values should be nil. */ | |
| 960 | |
| 961 void | |
| 962 enqueue_event (Lisp_Object event, Lisp_Object *head, Lisp_Object *tail) | |
| 963 { | |
| 964 assert (NILP (XEVENT_NEXT (event))); | |
| 965 assert (!EQ (*tail, event)); | |
| 966 | |
| 967 if (!NILP (*tail)) | |
| 968 XSET_EVENT_NEXT (*tail, event); | |
| 969 else | |
| 970 *head = event; | |
| 971 *tail = event; | |
| 972 | |
| 973 assert (!EQ (event, XEVENT_NEXT (event))); | |
| 974 } | |
| 975 | |
| 976 /* Remove an event off the head of a chain of events and return it. | |
| 977 HEAD points to the first event in the chain, TAIL to the last event. */ | |
| 978 | |
| 979 Lisp_Object | |
| 980 dequeue_event (Lisp_Object *head, Lisp_Object *tail) | |
| 981 { | |
| 982 Lisp_Object event; | |
| 983 | |
| 984 event = *head; | |
| 985 *head = XEVENT_NEXT (event); | |
| 986 XSET_EVENT_NEXT (event, Qnil); | |
| 987 if (NILP (*head)) | |
| 988 *tail = Qnil; | |
| 989 return event; | |
| 990 } | |
| 991 | |
| 992 /* Enqueue a chain of events (or possibly nil) onto the end of another | |
| 993 chain of events. HEAD points to the first event in the chain being | |
| 994 queued onto, TAIL to the last event. If the chain is empty, both values | |
| 995 should be nil. */ | |
| 996 | |
| 997 void | |
| 998 enqueue_event_chain (Lisp_Object event_chain, Lisp_Object *head, | |
| 999 Lisp_Object *tail) | |
| 1000 { | |
| 1001 if (NILP (event_chain)) | |
| 1002 return; | |
| 1003 | |
| 1004 if (NILP (*head)) | |
| 1005 { | |
| 1006 *head = event_chain; | |
| 1007 *tail = event_chain; | |
| 1008 } | |
| 1009 else | |
| 1010 { | |
| 1011 XSET_EVENT_NEXT (*tail, event_chain); | |
| 1012 *tail = event_chain_tail (event_chain); | |
| 1013 } | |
| 1014 } | |
| 1015 | |
| 1204 | 1016 /* Map a function over each event in the chain. If the function returns |
| 1017 non-zero, remove the event just processed. Return the total number of | |
| 1018 items removed. | |
| 1019 | |
| 1020 NOTE: | |
| 1021 | |
| 1022 If you want a simple mapping over an event chain, with no intention to | |
| 1023 add or remove items, just use EVENT_CHAIN_LOOP(). | |
| 1024 */ | |
| 1025 | |
| 1026 int | |
| 1027 map_event_chain_remove (int (*fn) (Lisp_Object ev, void *user_data), | |
| 1028 Lisp_Object *head, Lisp_Object *tail, | |
| 1029 void *user_data, int flags) | |
| 1030 { | |
| 1031 Lisp_Object event; | |
| 1032 Lisp_Object previous_event = Qnil; | |
| 1033 int count = 0; | |
| 1034 | |
| 1035 EVENT_CHAIN_LOOP (event, *head) | |
| 1036 { | |
| 1037 if (fn (event, user_data)) | |
| 1038 { | |
| 1039 if (NILP (previous_event)) | |
| 1040 dequeue_event (head, tail); | |
| 1041 else | |
| 1042 { | |
| 1043 XSET_EVENT_NEXT (previous_event, XEVENT_NEXT (event)); | |
| 1044 if (EQ (*tail, event)) | |
| 1045 *tail = previous_event; | |
| 1046 } | |
| 1047 | |
| 1048 if (flags & MECR_DEALLOCATE_EVENT) | |
| 1049 Fdeallocate_event (event); | |
| 1050 count++; | |
| 1051 } | |
| 1052 else | |
| 1053 previous_event = event; | |
| 1054 } | |
| 1055 return count; | |
| 1056 } | |
| 1057 | |
| 428 | 1058 /* Return the number of events (possibly 0) on an event chain. */ |
| 1059 | |
| 1060 int | |
| 1061 event_chain_count (Lisp_Object event_chain) | |
| 1062 { | |
| 1063 Lisp_Object event; | |
| 1064 int n = 0; | |
| 1065 | |
| 1066 EVENT_CHAIN_LOOP (event, event_chain) | |
| 1067 n++; | |
| 1068 | |
| 1069 return n; | |
| 1070 } | |
| 1071 | |
| 1072 /* Find the event before EVENT in an event chain. This aborts | |
| 1073 if the event is not in the chain. */ | |
| 1074 | |
| 1075 Lisp_Object | |
| 1076 event_chain_find_previous (Lisp_Object event_chain, Lisp_Object event) | |
| 1077 { | |
| 1078 Lisp_Object previous = Qnil; | |
| 1079 | |
| 1080 while (!NILP (event_chain)) | |
| 1081 { | |
| 1082 if (EQ (event_chain, event)) | |
| 1083 return previous; | |
| 1084 previous = event_chain; | |
| 1085 event_chain = XEVENT_NEXT (event_chain); | |
| 1086 } | |
| 1087 | |
| 2500 | 1088 ABORT (); |
| 428 | 1089 return Qnil; |
| 1090 } | |
| 1091 | |
| 1092 Lisp_Object | |
| 1093 event_chain_nth (Lisp_Object event_chain, int n) | |
| 1094 { | |
| 1095 Lisp_Object event; | |
| 1096 EVENT_CHAIN_LOOP (event, event_chain) | |
| 1097 { | |
| 1098 if (!n) | |
| 1099 return event; | |
| 1100 n--; | |
| 1101 } | |
| 1102 return Qnil; | |
| 1103 } | |
| 1104 | |
| 771 | 1105 /* Return a freshly allocated copy of all events in the given chain. */ |
| 1106 | |
| 428 | 1107 Lisp_Object |
| 1108 copy_event_chain (Lisp_Object event_chain) | |
| 1109 { | |
| 1110 Lisp_Object new_chain = Qnil; | |
| 1111 Lisp_Object new_chain_tail = Qnil; | |
| 1112 Lisp_Object event; | |
| 1113 | |
| 1114 EVENT_CHAIN_LOOP (event, event_chain) | |
| 1115 { | |
| 1116 Lisp_Object copy = Fcopy_event (event, Qnil); | |
| 1117 enqueue_event (copy, &new_chain, &new_chain_tail); | |
| 1118 } | |
| 1119 | |
| 1120 return new_chain; | |
| 1121 } | |
| 1122 | |
| 771 | 1123 /* Given a pointer (maybe nil) into an old chain (also maybe nil, if |
| 1124 pointer is nil) and a new chain which is a copy of the old, return | |
| 1125 the corresponding new pointer. */ | |
| 1126 Lisp_Object | |
| 1127 transfer_event_chain_pointer (Lisp_Object pointer, Lisp_Object old_chain, | |
| 1128 Lisp_Object new_chain) | |
| 1129 { | |
| 1130 if (NILP (pointer)) | |
| 1131 return Qnil; | |
| 1132 assert (!NILP (old_chain)); | |
| 800 | 1133 #ifdef ERROR_CHECK_STRUCTURES |
| 771 | 1134 /* make sure we're actually in the chain */ |
| 1135 event_chain_find_previous (old_chain, pointer); | |
| 1136 assert (event_chain_count (old_chain) == event_chain_count (new_chain)); | |
| 800 | 1137 #endif /* ERROR_CHECK_STRUCTURES */ |
| 771 | 1138 return event_chain_nth (new_chain, |
| 1139 event_chain_count (old_chain) - | |
| 1140 event_chain_count (pointer)); | |
| 1141 } | |
| 1142 | |
| 428 | 1143 |
| 771 | 1144 /************************************************************************/ |
| 1145 /* higher level functions */ | |
| 1146 /************************************************************************/ | |
| 428 | 1147 |
| 1148 Lisp_Object QKbackspace, QKtab, QKlinefeed, QKreturn, QKescape, | |
| 1149 QKspace, QKdelete; | |
| 1150 | |
| 1151 int | |
| 1152 command_event_p (Lisp_Object event) | |
| 1153 { | |
| 1154 switch (XEVENT_TYPE (event)) | |
| 1155 { | |
| 1156 case key_press_event: | |
| 1157 case button_press_event: | |
| 1158 case button_release_event: | |
| 1159 case misc_user_event: | |
| 1160 return 1; | |
| 1161 default: | |
| 1162 return 0; | |
| 1163 } | |
| 1164 } | |
| 1165 | |
|
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1166 /* META_BEHAVIOR can be one of the following values, defined in events.h: |
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1167 |
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1168 high_bit_is_meta |
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1169 use_console_meta_flag |
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1170 latin_1_maps_to_itself |
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1171 |
| 1204 | 1172 DO_BACKSPACE_MAPPING means that if CON is a TTY, and C is a the TTY's |
| 1173 backspace character, the event will have keysym `backspace' instead of | |
| 1174 '(control h). It is clearly correct to do this conversion is the | |
| 1175 character was just read from a TTY, clearly incorrect inside of | |
| 1176 define-key, which must be able to handle all consoles. #### What about | |
| 1177 in other circumstances? #### Should the user have access to this flag? | |
| 1178 | |
| 1179 #### We need to go through and review all the flags in | |
| 1180 character_to_event() and event_to_character() and figure out exactly | |
| 1181 under what circumstances they should or should not be set, then go | |
| 1182 through and review all callers of character_to_event(), | |
| 1183 Fcharacter_to_event(), event_to_character(), and Fevent_to_character() | |
| 1184 and check that they are passing the correct flags in for their varied | |
| 1185 circumstances. | |
| 1186 | |
| 1187 #### Some of this garbage, and some of the flags, could go away if we | |
| 1188 implemented the suggestion, originally from event-Xt.c: | |
| 1189 | |
| 2828 | 1190 [[ The way that keysym correspondence to characters should work: |
| 1204 | 1191 - a Lisp_Event should contain a keysym AND a character slot. |
| 1192 - keybindings are tried with the keysym. If no binding can be found, | |
| 2828 | 1193 and there is a corresponding character, call self-insert-command. ]] |
| 1194 | |
| 1195 That's an X-specific way of thinking. All the other platforms--even | |
| 1196 the TTY, make sure you've done (set-input-mode t nil 1) and set your | |
| 1197 console coding system appropriately when checking--just use | |
| 1198 characters as emacs keysyms, and, together with defaulting to | |
| 1199 self-insert-command if an unbound key with a character correspondence | |
| 1200 is typed, that works fine for them. (Yes, this ignores GTK.) | |
| 1201 | |
| 1202 [[ [... snipping other suggestions which I've implemented.] | |
| 1203 Nuke the Qascii_character property. ]] | |
| 1204 | 1204 |
| 2828 | 1205 Well, we've renamed it anyway--it was badly named. |
| 1206 Qcharacter_of_keysym, here we go. It's really only with X11 that how | |
| 1207 to map between adiaeresis and (int-to-char #xE4), or ellipsis and | |
| 1208 whatever, becomes an issue, and IMO the property approach to this is | |
| 1209 fine. Aidan Kehoe, 2005-05-15. | |
| 1204 | 1210 |
| 2828 | 1211 [[ This would apparently solve a lot of different problems. ]] |
| 1212 | |
| 1213 I'd be interested to know what's left. Removing the allow-meta | |
| 1214 argument from event-to-character would be a Good Thing, IMO, but | |
| 1215 beyond that, I'm not sure what else there is to do wrt. key | |
| 1216 mappings. Of course, feedback from users of the Russian C-x facility | |
| 1217 is still needed. */ | |
| 428 | 1218 |
| 1219 void | |
| 867 | 1220 character_to_event (Ichar c, Lisp_Event *event, struct console *con, |
|
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1221 character_to_event_meta_behavior meta_behavior, |
| 2340 | 1222 int USED_IF_TTY (do_backspace_mapping)) |
| 428 | 1223 { |
| 1224 Lisp_Object k = Qnil; | |
| 442 | 1225 int m = 0; |
| 934 | 1226 if (EVENT_TYPE (event) == dead_event) |
| 563 | 1227 invalid_argument ("character-to-event called with a deallocated event!", Qunbound); |
| 428 | 1228 |
| 1229 #ifndef MULE | |
| 1230 c &= 255; | |
| 1231 #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
|
1232 if (meta_behavior != latin_1_maps_to_itself && c > 127 && c <= 255) |
| 428 | 1233 { |
| 1234 int meta_flag = 1; | |
|
4780
2fd201d73a92
Call character_to_event on characters received from XIM, event-Xt.c
Aidan Kehoe <kehoea@parhasard.net>
parents:
3092
diff
changeset
|
1235 if (meta_behavior == use_console_meta_flag && CONSOLE_TTY_P (con)) |
| 428 | 1236 meta_flag = TTY_FLAGS (con).meta_key; |
| 1237 switch (meta_flag) | |
| 1238 { | |
| 1239 case 0: /* ignore top bit; it's parity */ | |
| 1240 c -= 128; | |
| 1241 break; | |
| 1242 case 1: /* top bit is meta */ | |
| 1243 c -= 128; | |
| 442 | 1244 m = XEMACS_MOD_META; |
| 428 | 1245 break; |
| 1246 default: /* this is a real character */ | |
| 1247 break; | |
| 1248 } | |
| 1249 } | |
| 442 | 1250 if (c < ' ') c += '@', m |= XEMACS_MOD_CONTROL; |
| 1251 if (m & XEMACS_MOD_CONTROL) | |
| 428 | 1252 { |
| 1253 switch (c) | |
| 1254 { | |
| 442 | 1255 case 'I': k = QKtab; m &= ~XEMACS_MOD_CONTROL; break; |
| 1256 case 'J': k = QKlinefeed; m &= ~XEMACS_MOD_CONTROL; break; | |
| 1257 case 'M': k = QKreturn; m &= ~XEMACS_MOD_CONTROL; break; | |
| 1258 case '[': k = QKescape; m &= ~XEMACS_MOD_CONTROL; break; | |
| 428 | 1259 default: |
| 1204 | 1260 #if defined (HAVE_TTY) |
| 428 | 1261 if (do_backspace_mapping && |
| 1262 CHARP (con->tty_erase_char) && | |
| 1263 c - '@' == XCHAR (con->tty_erase_char)) | |
| 1264 { | |
| 1265 k = QKbackspace; | |
| 442 | 1266 m &= ~XEMACS_MOD_CONTROL; |
| 428 | 1267 } |
| 1204 | 1268 #endif /* defined (HAVE_TTY) */ |
| 428 | 1269 break; |
| 1270 } | |
| 1271 if (c >= 'A' && c <= 'Z') c -= 'A'-'a'; | |
| 1272 } | |
| 1204 | 1273 #if defined (HAVE_TTY) |
| 428 | 1274 else if (do_backspace_mapping && |
| 1275 CHARP (con->tty_erase_char) && c == XCHAR (con->tty_erase_char)) | |
| 1276 k = QKbackspace; | |
| 1204 | 1277 #endif /* defined (HAVE_TTY) */ |
| 428 | 1278 else if (c == 127) |
| 1279 k = QKdelete; | |
| 1280 else if (c == ' ') | |
| 1281 k = QKspace; | |
| 1282 | |
| 934 | 1283 set_event_type (event, key_press_event); |
| 1284 SET_EVENT_TIMESTAMP_ZERO (event); /* #### */ | |
| 1285 SET_EVENT_CHANNEL (event, wrap_console (con)); | |
| 1204 | 1286 SET_EVENT_KEY_KEYSYM (event, (!NILP (k) ? k : make_char (c))); |
| 1287 SET_EVENT_KEY_MODIFIERS (event, m); | |
| 428 | 1288 } |
| 1289 | |
| 867 | 1290 Ichar |
| 1204 | 1291 event_to_character (Lisp_Object event, |
| 428 | 1292 int allow_extra_modifiers, |
| 2828 | 1293 int allow_meta) |
| 428 | 1294 { |
| 867 | 1295 Ichar c = 0; |
| 428 | 1296 Lisp_Object code; |
| 1297 | |
| 1204 | 1298 if (XEVENT_TYPE (event) != key_press_event) |
| 428 | 1299 { |
| 1204 | 1300 assert (XEVENT_TYPE (event) != dead_event); |
| 428 | 1301 return -1; |
| 1302 } | |
| 1303 if (!allow_extra_modifiers && | |
| 2828 | 1304 XEVENT_KEY_MODIFIERS (event) & |
| 1305 (XEMACS_MOD_SUPER|XEMACS_MOD_HYPER|XEMACS_MOD_ALT)) | |
| 428 | 1306 return -1; |
| 1204 | 1307 if (CHAR_OR_CHAR_INTP (XEVENT_KEY_KEYSYM (event))) |
| 1308 c = XCHAR_OR_CHAR_INT (XEVENT_KEY_KEYSYM (event)); | |
| 1309 else if (!SYMBOLP (XEVENT_KEY_KEYSYM (event))) | |
| 2500 | 1310 ABORT (); |
| 1204 | 1311 else if (CHAR_OR_CHAR_INTP (code = Fget (XEVENT_KEY_KEYSYM (event), |
| 2828 | 1312 Qcharacter_of_keysym, Qnil))) |
| 428 | 1313 c = XCHAR_OR_CHAR_INT (code); |
| 1314 else | |
| 2828 | 1315 { |
| 1316 Lisp_Object thekeysym = XEVENT_KEY_KEYSYM (event); | |
| 1317 | |
| 1318 if (CHAR_OR_CHAR_INTP (code = Fget (thekeysym, Qascii_character, Qnil))) | |
| 1319 { | |
| 1320 c = XCHAR_OR_CHAR_INT (code); | |
| 1321 warn_when_safe(Qkey_mapping, Qwarning, | |
| 1322 "Obsolete key binding technique.\n" | |
| 428 | 1323 |
| 2828 | 1324 "Some code you're using bound %s to `self-insert-command' and messed around\n" |
| 1325 "with its `ascii-character' property. Doing this is deprecated, and the code\n" | |
| 1326 "should be updated to use the `set-character-of-keysym' interface.\n" | |
| 1327 "If you're the one updating the code, first check if there's still a need\n" | |
| 1328 "for it; we support many more X11 keysyms out of the box now than we did\n" | |
| 1329 "in the past. ", XSTRING_DATA(XSYMBOL_NAME(thekeysym))); | |
| 1330 /* Only show the warning once for each keysym. */ | |
| 1331 Fput(thekeysym, Qcharacter_of_keysym, code); | |
| 1332 } | |
| 1333 else | |
| 1334 { | |
| 1335 return -1; | |
| 1336 } | |
| 1337 } | |
| 1204 | 1338 if (XEVENT_KEY_MODIFIERS (event) & XEMACS_MOD_CONTROL) |
| 428 | 1339 { |
| 1340 if (c >= 'a' && c <= 'z') | |
| 1341 c -= ('a' - 'A'); | |
| 1342 else | |
| 1343 /* reject Control-Shift- keys */ | |
| 1344 if (c >= 'A' && c <= 'Z' && !allow_extra_modifiers) | |
| 1345 return -1; | |
| 1346 | |
| 1347 if (c >= '@' && c <= '_') | |
| 1348 c -= '@'; | |
| 1349 else if (c == ' ') /* C-space and C-@ are the same. */ | |
| 1350 c = 0; | |
| 1351 else | |
| 1352 /* reject keys that can't take Control- modifiers */ | |
| 1353 if (! allow_extra_modifiers) return -1; | |
| 1354 } | |
| 1355 | |
| 1204 | 1356 if (XEVENT_KEY_MODIFIERS (event) & XEMACS_MOD_META) |
| 428 | 1357 { |
| 1358 if (! allow_meta) return -1; | |
| 1204 | 1359 if (c >= 128) return -1; /* don't allow M-oslash (overlap) */ |
| 428 | 1360 c |= 0200; |
| 1361 } | |
| 1362 return c; | |
| 1363 } | |
| 1364 | |
| 2862 | 1365 DEFUN ("event-to-character", Fevent_to_character, 1, 4, 0, /* |
| 2828 | 1366 Return the closest character approximation to the given event object. |
| 428 | 1367 If the event isn't a keypress, this returns nil. |
| 1368 If the ALLOW-EXTRA-MODIFIERS argument is non-nil, then this is lenient in | |
| 1369 its translation; it will ignore modifier keys other than control and meta, | |
| 1370 and will ignore the shift modifier on those characters which have no | |
| 1371 shifted ASCII equivalent (Control-Shift-A for example, will be mapped to | |
| 1372 the same ASCII code as Control-A). | |
| 1373 If the ALLOW-META argument is non-nil, then the Meta modifier will be | |
| 1374 represented by turning on the high bit of the byte returned; otherwise, nil | |
| 1375 will be returned for events containing the Meta modifier. | |
| 1204 | 1376 Note that ALLOW-META may cause ambiguity between meta characters and |
| 1377 Latin-1 characters. | |
| 2862 | 1378 ALLOW-NON-ASCII is unused, and retained for compatibility. |
| 428 | 1379 */ |
| 2862 | 1380 (event, allow_extra_modifiers, allow_meta, UNUSED(allow_non_ascii))) |
| 428 | 1381 { |
| 867 | 1382 Ichar c; |
| 428 | 1383 CHECK_LIVE_EVENT (event); |
| 1204 | 1384 c = event_to_character (event, |
| 428 | 1385 !NILP (allow_extra_modifiers), |
| 2828 | 1386 !NILP (allow_meta)); |
| 428 | 1387 return c < 0 ? Qnil : make_char (c); |
| 1388 } | |
| 1389 | |
| 1390 DEFUN ("character-to-event", Fcharacter_to_event, 1, 4, 0, /* | |
| 444 | 1391 Convert KEY-DESCRIPTION into an event structure, replete with bucky bits. |
| 428 | 1392 |
| 444 | 1393 KEY-DESCRIPTION is the first argument, and the event to fill in is the |
| 1394 second. This function contains knowledge about what various kinds of | |
| 1395 arguments ``mean'' -- for example, the number 9 is converted to the | |
| 1396 character ``Tab'', not the distinct character ``Control-I''. | |
| 428 | 1397 |
| 3025 | 1398 KEY-DESCRIPTION can be an integer, a character, a symbol such as `clear', |
| 444 | 1399 or a list such as '(control backspace). |
| 1400 | |
| 1401 If the optional second argument EVENT is an event, it is modified and | |
| 1402 returned; otherwise, a new event object is created and returned. | |
| 428 | 1403 |
| 1404 Optional third arg CONSOLE is the console to store in the event, and | |
| 1405 defaults to the selected console. | |
| 1406 | |
| 444 | 1407 If KEY-DESCRIPTION is an integer or character, the high bit may be |
| 1204 | 1408 interpreted as the meta key. (This is done for backward compatibility in |
| 1409 lots of places -- specifically, because lots of Lisp code uses specs like | |
| 1410 ?\M-d and "\M-d" in key code, expecting this to work; yet these are in | |
| 1411 reality converted directly to 8-bit characters by the Lisp reader.) If | |
| 1412 USE-CONSOLE-META-FLAG is nil or CONSOLE is not a TTY, this will always be | |
| 1413 the case. If USE-CONSOLE-META-FLAG is non-nil and CONSOLE is a TTY, the | |
| 1414 `meta' flag for CONSOLE affects whether the high bit is interpreted as a | |
| 1415 meta key. (See `set-input-mode'.) Don't set this flag to non-nil unless | |
| 1416 you know what you're doing (more specifically, only if the character came | |
| 1417 directly from a TTY, not from the user). If you don't want this silly meta | |
| 1418 interpretation done, you should pass in a list containing the character. | |
| 428 | 1419 |
| 1420 Beware that character-to-event and event-to-character are not strictly | |
| 1421 inverse functions, since events contain much more information than the | |
| 444 | 1422 Lisp character object type can encode. |
| 428 | 1423 */ |
|
4780
2fd201d73a92
Call character_to_event on characters received from XIM, event-Xt.c
Aidan Kehoe <kehoea@parhasard.net>
parents:
3092
diff
changeset
|
1424 (keystroke, event, console, use_console_meta_flag_)) |
| 428 | 1425 { |
| 1426 struct console *con = decode_console (console); | |
| 1427 if (NILP (event)) | |
| 1428 event = Fmake_event (Qnil, Qnil); | |
| 1429 else | |
| 1430 CHECK_LIVE_EVENT (event); | |
| 444 | 1431 if (CONSP (keystroke) || SYMBOLP (keystroke)) |
| 1432 key_desc_list_to_event (keystroke, event, 1); | |
| 428 | 1433 else |
| 1434 { | |
| 444 | 1435 CHECK_CHAR_COERCE_INT (keystroke); |
| 1436 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
|
1437 (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
|
1438 high_bit_is_meta : use_console_meta_flag), 1); |
| 428 | 1439 } |
| 1440 return event; | |
| 1441 } | |
| 1442 | |
| 1443 void | |
| 1444 nth_of_key_sequence_as_event (Lisp_Object seq, int n, Lisp_Object event) | |
| 1445 { | |
| 1446 assert (STRINGP (seq) || VECTORP (seq)); | |
| 1447 assert (n < XINT (Flength (seq))); | |
| 1448 | |
| 1449 if (STRINGP (seq)) | |
| 1450 { | |
| 867 | 1451 Ichar ch = string_ichar (seq, n); |
| 428 | 1452 Fcharacter_to_event (make_char (ch), event, Qnil, Qnil); |
| 1453 } | |
| 1454 else | |
| 1455 { | |
| 1456 Lisp_Object keystroke = XVECTOR_DATA (seq)[n]; | |
| 1457 if (EVENTP (keystroke)) | |
| 1458 Fcopy_event (keystroke, event); | |
| 1459 else | |
| 1460 Fcharacter_to_event (keystroke, event, Qnil, Qnil); | |
| 1461 } | |
| 1462 } | |
| 1463 | |
| 1464 Lisp_Object | |
| 1465 key_sequence_to_event_chain (Lisp_Object seq) | |
| 1466 { | |
| 1467 int len = XINT (Flength (seq)); | |
| 1468 int i; | |
| 1469 Lisp_Object head = Qnil, tail = Qnil; | |
| 1470 | |
| 1471 for (i = 0; i < len; i++) | |
| 1472 { | |
| 1473 Lisp_Object event = Fmake_event (Qnil, Qnil); | |
| 1474 nth_of_key_sequence_as_event (seq, i, event); | |
| 1475 enqueue_event (event, &head, &tail); | |
| 1476 } | |
| 1477 | |
| 1478 return head; | |
| 1479 } | |
| 1480 | |
| 934 | 1481 |
| 793 | 1482 /* Concatenate a string description of EVENT onto the end of BUF. If |
| 1483 BRIEF, use short forms for keys, e.g. C- instead of control-. */ | |
| 1484 | |
| 934 | 1485 void |
| 1486 format_event_object (Eistring *buf, Lisp_Object event, int brief) | |
| 428 | 1487 { |
| 1488 int mouse_p = 0; | |
| 1489 int mod = 0; | |
| 1490 Lisp_Object key; | |
| 1491 | |
| 1204 | 1492 switch (XEVENT_TYPE (event)) |
| 428 | 1493 { |
| 1494 case key_press_event: | |
| 1495 { | |
| 1204 | 1496 mod = XEVENT_KEY_MODIFIERS (event); |
| 1497 key = XEVENT_KEY_KEYSYM (event); | |
| 428 | 1498 /* Hack. */ |
| 1499 if (! brief && CHARP (key) && | |
| 793 | 1500 mod & (XEMACS_MOD_CONTROL | XEMACS_MOD_META | XEMACS_MOD_SUPER | |
| 1501 XEMACS_MOD_HYPER)) | |
| 428 | 1502 { |
| 1503 int k = XCHAR (key); | |
| 1504 if (k >= 'a' && k <= 'z') | |
| 1505 key = make_char (k - ('a' - 'A')); | |
| 1506 else if (k >= 'A' && k <= 'Z') | |
| 442 | 1507 mod |= XEMACS_MOD_SHIFT; |
| 428 | 1508 } |
| 1509 break; | |
| 1510 } | |
| 1511 case button_release_event: | |
| 1512 mouse_p++; | |
| 1513 /* Fall through */ | |
| 1514 case button_press_event: | |
| 1515 { | |
| 1516 mouse_p++; | |
| 1204 | 1517 mod = XEVENT_BUTTON_MODIFIERS (event); |
| 1518 key = make_char (XEVENT_BUTTON_BUTTON (event) + '0'); | |
| 428 | 1519 break; |
| 1520 } | |
| 1521 case magic_event: | |
| 1522 { | |
| 788 | 1523 Lisp_Object stream; |
| 1524 struct gcpro gcpro1; | |
| 1525 GCPRO1 (stream); | |
| 428 | 1526 |
| 788 | 1527 stream = make_resizing_buffer_output_stream (); |
| 1204 | 1528 event_stream_format_magic_event (XEVENT (event), stream); |
| 788 | 1529 Lstream_flush (XLSTREAM (stream)); |
| 793 | 1530 eicat_raw (buf, resizing_buffer_stream_ptr (XLSTREAM (stream)), |
| 1531 Lstream_byte_count (XLSTREAM (stream))); | |
| 788 | 1532 Lstream_delete (XLSTREAM (stream)); |
| 1533 UNGCPRO; | |
| 428 | 1534 return; |
| 1535 } | |
| 2421 | 1536 case magic_eval_event: eicat_ascii (buf, "magic-eval"); return; |
| 1537 case pointer_motion_event: eicat_ascii (buf, "motion"); return; | |
| 1538 case misc_user_event: eicat_ascii (buf, "misc-user"); return; | |
| 1539 case eval_event: eicat_ascii (buf, "eval"); return; | |
| 1540 case process_event: eicat_ascii (buf, "process"); return; | |
| 1541 case timeout_event: eicat_ascii (buf, "timeout"); return; | |
| 1542 case empty_event: eicat_ascii (buf, "empty"); return; | |
| 1543 case dead_event: eicat_ascii (buf, "DEAD-EVENT"); return; | |
| 428 | 1544 default: |
| 2500 | 1545 ABORT (); |
| 442 | 1546 return; |
| 428 | 1547 } |
| 793 | 1548 #define modprint(x,y) \ |
| 2421 | 1549 do { if (brief) eicat_ascii (buf, (y)); else eicat_ascii (buf, (x)); } while (0) |
| 442 | 1550 if (mod & XEMACS_MOD_CONTROL) modprint ("control-", "C-"); |
| 1551 if (mod & XEMACS_MOD_META) modprint ("meta-", "M-"); | |
| 1552 if (mod & XEMACS_MOD_SUPER) modprint ("super-", "S-"); | |
| 1553 if (mod & XEMACS_MOD_HYPER) modprint ("hyper-", "H-"); | |
| 1554 if (mod & XEMACS_MOD_ALT) modprint ("alt-", "A-"); | |
| 1555 if (mod & XEMACS_MOD_SHIFT) modprint ("shift-", "Sh-"); | |
| 428 | 1556 if (mouse_p) |
| 1557 { | |
| 2421 | 1558 eicat_ascii (buf, "button"); |
| 428 | 1559 --mouse_p; |
| 1560 } | |
| 1561 | |
| 1562 #undef modprint | |
| 1563 | |
| 1564 if (CHARP (key)) | |
| 793 | 1565 eicat_ch (buf, XCHAR (key)); |
| 428 | 1566 else if (SYMBOLP (key)) |
| 1567 { | |
| 2367 | 1568 const Ascbyte *str = 0; |
| 428 | 1569 if (brief) |
| 1570 { | |
| 1571 if (EQ (key, QKlinefeed)) str = "LFD"; | |
| 1572 else if (EQ (key, QKtab)) str = "TAB"; | |
| 1573 else if (EQ (key, QKreturn)) str = "RET"; | |
| 1574 else if (EQ (key, QKescape)) str = "ESC"; | |
| 1575 else if (EQ (key, QKdelete)) str = "DEL"; | |
| 1576 else if (EQ (key, QKspace)) str = "SPC"; | |
| 1577 else if (EQ (key, QKbackspace)) str = "BS"; | |
| 1578 } | |
| 1579 if (str) | |
| 2421 | 1580 eicat_ascii (buf, str); |
| 428 | 1581 else |
| 793 | 1582 eicat_lstr (buf, XSYMBOL (key)->name); |
| 428 | 1583 } |
| 1584 else | |
| 2500 | 1585 ABORT (); |
| 428 | 1586 if (mouse_p) |
| 2421 | 1587 eicat_ascii (buf, "up"); |
| 428 | 1588 } |
| 1589 | |
| 1204 | 1590 void |
| 1591 upshift_event (Lisp_Object event) | |
| 1592 { | |
| 1593 Lisp_Object keysym = XEVENT_KEY_KEYSYM (event); | |
| 1594 Ichar c = 0; | |
| 1595 | |
| 1596 if (CHAR_OR_CHAR_INTP (keysym) | |
| 1597 && ((c = XCHAR_OR_CHAR_INT (keysym)), | |
| 1598 c >= 'a' && c <= 'z')) | |
| 1599 XSET_EVENT_KEY_KEYSYM (event, make_char (c + 'A' - 'a')); | |
| 1600 else | |
| 1601 if (!(XEVENT_KEY_MODIFIERS (event) & XEMACS_MOD_SHIFT)) | |
| 1602 XSET_EVENT_KEY_MODIFIERS | |
| 1603 (event, XEVENT_KEY_MODIFIERS (event) |= XEMACS_MOD_SHIFT); | |
| 1604 } | |
| 1605 | |
| 1606 void | |
| 1607 downshift_event (Lisp_Object event) | |
| 1608 { | |
| 1609 Lisp_Object keysym = XEVENT_KEY_KEYSYM (event); | |
| 1610 Ichar c = 0; | |
| 1611 | |
| 1612 if (XEVENT_KEY_MODIFIERS (event) & XEMACS_MOD_SHIFT) | |
| 1613 XSET_EVENT_KEY_MODIFIERS | |
| 1614 (event, XEVENT_KEY_MODIFIERS (event) & ~XEMACS_MOD_SHIFT); | |
| 1615 else if (CHAR_OR_CHAR_INTP (keysym) | |
| 1616 && ((c = XCHAR_OR_CHAR_INT (keysym)), | |
| 1617 c >= 'A' && c <= 'Z')) | |
| 1618 XSET_EVENT_KEY_KEYSYM (event, make_char (c + 'a' - 'A')); | |
| 1619 } | |
| 1620 | |
| 1621 int | |
| 1622 event_upshifted_p (Lisp_Object event) | |
| 1623 { | |
| 1624 Lisp_Object keysym = XEVENT_KEY_KEYSYM (event); | |
| 1625 Ichar c = 0; | |
| 1626 | |
| 1627 if ((XEVENT_KEY_MODIFIERS (event) & XEMACS_MOD_SHIFT) | |
| 1628 || (CHAR_OR_CHAR_INTP (keysym) | |
| 1629 && ((c = XCHAR_OR_CHAR_INT (keysym)), | |
| 1630 c >= 'A' && c <= 'Z'))) | |
| 1631 return 1; | |
| 1632 else | |
| 1633 return 0; | |
| 1634 } | |
| 934 | 1635 |
| 428 | 1636 DEFUN ("eventp", Feventp, 1, 1, 0, /* |
| 1637 True if OBJECT is an event object. | |
| 1638 */ | |
| 1639 (object)) | |
| 1640 { | |
| 1641 return EVENTP (object) ? Qt : Qnil; | |
| 1642 } | |
| 1643 | |
| 1644 DEFUN ("event-live-p", Fevent_live_p, 1, 1, 0, /* | |
| 1645 True if OBJECT is an event object that has not been deallocated. | |
| 1646 */ | |
| 1647 (object)) | |
| 1648 { | |
| 934 | 1649 return EVENTP (object) && XEVENT_TYPE (object) != dead_event ? |
| 1650 Qt : Qnil; | |
| 428 | 1651 } |
| 1652 | |
| 1653 #if 0 /* debugging functions */ | |
| 1654 | |
| 826 | 1655 DEFUN ("event-next", Fevent_next, 1, 1, 0, /* |
| 428 | 1656 Return the event object's `next' event, or nil if it has none. |
| 1657 The `next-event' field is changed by calling `set-next-event'. | |
| 1658 */ | |
| 1659 (event)) | |
| 1660 { | |
| 440 | 1661 Lisp_Event *e; |
| 428 | 1662 CHECK_LIVE_EVENT (event); |
| 1663 | |
| 1664 return XEVENT_NEXT (event); | |
| 1665 } | |
| 1666 | |
| 826 | 1667 DEFUN ("set-event-next", Fset_event_next, 2, 2, 0, /* |
| 428 | 1668 Set the `next event' of EVENT to NEXT-EVENT. |
| 1669 NEXT-EVENT must be an event object or nil. | |
| 1670 */ | |
| 1671 (event, next_event)) | |
| 1672 { | |
| 1673 Lisp_Object ev; | |
| 1674 | |
| 1675 CHECK_LIVE_EVENT (event); | |
| 1676 if (NILP (next_event)) | |
| 1677 { | |
| 1678 XSET_EVENT_NEXT (event, Qnil); | |
| 1679 return Qnil; | |
| 1680 } | |
| 1681 | |
| 1682 CHECK_LIVE_EVENT (next_event); | |
| 1683 | |
| 1684 EVENT_CHAIN_LOOP (ev, XEVENT_NEXT (event)) | |
| 1685 { | |
| 1686 QUIT; | |
| 1687 if (EQ (ev, event)) | |
| 563 | 1688 invalid_operation_2 ("Cyclic event-next", event, next_event); |
| 428 | 1689 } |
| 1690 XSET_EVENT_NEXT (event, next_event); | |
| 1691 return next_event; | |
| 1692 } | |
| 1693 | |
| 1694 #endif /* 0 */ | |
| 1695 | |
| 1696 DEFUN ("event-type", Fevent_type, 1, 1, 0, /* | |
| 1697 Return the type of EVENT. | |
| 1698 This will be a symbol; one of | |
| 1699 | |
| 1700 key-press A key was pressed. | |
| 1701 button-press A mouse button was pressed. | |
| 1702 button-release A mouse button was released. | |
| 1703 misc-user Some other user action happened; typically, this is | |
| 1704 a menu selection or scrollbar action. | |
| 1705 motion The mouse moved. | |
| 1706 process Input is available from a subprocess. | |
| 1707 timeout A timeout has expired. | |
| 1708 eval This causes a specified action to occur when dispatched. | |
| 1709 magic Some window-system-specific event has occurred. | |
| 1710 empty The event has been allocated but not assigned. | |
| 1711 | |
| 1712 */ | |
| 1713 (event)) | |
| 1714 { | |
| 1715 CHECK_LIVE_EVENT (event); | |
| 934 | 1716 switch (XEVENT_TYPE (event)) |
| 428 | 1717 { |
| 1718 case key_press_event: return Qkey_press; | |
| 1719 case button_press_event: return Qbutton_press; | |
| 1720 case button_release_event: return Qbutton_release; | |
| 1721 case misc_user_event: return Qmisc_user; | |
| 1722 case pointer_motion_event: return Qmotion; | |
| 1723 case process_event: return Qprocess; | |
| 1724 case timeout_event: return Qtimeout; | |
| 1725 case eval_event: return Qeval; | |
| 1726 case magic_event: | |
| 1727 case magic_eval_event: | |
| 1728 return Qmagic; | |
| 1729 | |
| 1730 case empty_event: | |
| 1731 return Qempty; | |
| 1732 | |
| 1733 default: | |
| 2500 | 1734 ABORT (); |
| 428 | 1735 return Qnil; |
| 1736 } | |
| 1737 } | |
| 1738 | |
| 1739 DEFUN ("event-timestamp", Fevent_timestamp, 1, 1, 0, /* | |
| 1740 Return the timestamp of the event object EVENT. | |
| 442 | 1741 Timestamps are measured in milliseconds since the start of the window system. |
| 1742 They are NOT related to any current time measurement. | |
| 1743 They should be compared with `event-timestamp<'. | |
| 1744 See also `current-event-timestamp'. | |
| 428 | 1745 */ |
| 1746 (event)) | |
| 1747 { | |
| 1748 CHECK_LIVE_EVENT (event); | |
| 1749 /* This junk is so that timestamps don't get to be negative, but contain | |
| 1750 as many bits as this particular emacs will allow. | |
| 1751 */ | |
| 2039 | 1752 return make_int (EMACS_INT_MAX & XEVENT_TIMESTAMP (event)); |
| 428 | 1753 } |
| 1754 | |
| 2039 | 1755 #define TIMESTAMP_HALFSPACE (1L << (INT_VALBITS - 2)) |
| 442 | 1756 |
| 1757 DEFUN ("event-timestamp<", Fevent_timestamp_lessp, 2, 2, 0, /* | |
| 1758 Return true if timestamp TIME1 is earlier than timestamp TIME2. | |
| 1759 This correctly handles timestamp wrap. | |
| 1760 See also `event-timestamp' and `current-event-timestamp'. | |
| 1761 */ | |
| 1762 (time1, time2)) | |
| 1763 { | |
| 1764 EMACS_INT t1, t2; | |
| 1765 | |
| 1766 CHECK_NATNUM (time1); | |
| 1767 CHECK_NATNUM (time2); | |
| 1768 t1 = XINT (time1); | |
| 1769 t2 = XINT (time2); | |
| 1770 | |
| 1771 if (t1 < t2) | |
| 1772 return t2 - t1 < TIMESTAMP_HALFSPACE ? Qt : Qnil; | |
| 1773 else | |
| 1774 return t1 - t2 < TIMESTAMP_HALFSPACE ? Qnil : Qt; | |
| 1775 } | |
| 1776 | |
| 934 | 1777 #define CHECK_EVENT_TYPE(e,t1,sym) do { \ |
| 1778 CHECK_LIVE_EVENT (e); \ | |
| 1779 if (XEVENT_TYPE (e) != (t1)) \ | |
| 1780 e = wrong_type_argument (sym,e); \ | |
| 1781 } while (0) | |
| 1782 | |
| 1783 #define CHECK_EVENT_TYPE2(e,t1,t2,sym) do { \ | |
| 1784 CHECK_LIVE_EVENT (e); \ | |
| 1785 { \ | |
| 1786 emacs_event_type CET_type = XEVENT_TYPE (e); \ | |
| 1787 if (CET_type != (t1) && \ | |
| 1788 CET_type != (t2)) \ | |
| 1789 e = wrong_type_argument (sym,e); \ | |
| 1790 } \ | |
| 1791 } while (0) | |
| 1792 | |
| 1793 #define CHECK_EVENT_TYPE3(e,t1,t2,t3,sym) do { \ | |
| 1794 CHECK_LIVE_EVENT (e); \ | |
| 1795 { \ | |
| 1796 emacs_event_type CET_type = XEVENT_TYPE (e); \ | |
| 1797 if (CET_type != (t1) && \ | |
| 1798 CET_type != (t2) && \ | |
| 1799 CET_type != (t3)) \ | |
| 1800 e = wrong_type_argument (sym,e); \ | |
| 1801 } \ | |
| 1802 } while (0) | |
| 428 | 1803 |
| 1804 DEFUN ("event-key", Fevent_key, 1, 1, 0, /* | |
| 1805 Return the Keysym of the key-press event EVENT. | |
| 1806 This will be a character if the event is associated with one, else a symbol. | |
| 1807 */ | |
| 1808 (event)) | |
| 1809 { | |
| 1810 CHECK_EVENT_TYPE (event, key_press_event, Qkey_press_event_p); | |
| 1204 | 1811 return XEVENT_KEY_KEYSYM (event); |
| 428 | 1812 } |
| 1813 | |
| 1814 DEFUN ("event-button", Fevent_button, 1, 1, 0, /* | |
| 444 | 1815 Return the button-number of the button-press or button-release event EVENT. |
| 428 | 1816 */ |
| 1817 (event)) | |
| 1818 { | |
| 1819 CHECK_EVENT_TYPE3 (event, button_press_event, button_release_event, | |
| 1820 misc_user_event, Qbutton_event_p); | |
| 1821 #ifdef HAVE_WINDOW_SYSTEM | |
| 1204 | 1822 if (XEVENT_TYPE (event) == misc_user_event) |
| 1823 return make_int (XEVENT_MISC_USER_BUTTON (event)); | |
| 934 | 1824 else |
| 1204 | 1825 return make_int (XEVENT_BUTTON_BUTTON (event)); |
| 428 | 1826 #else /* !HAVE_WINDOW_SYSTEM */ |
| 1827 return Qzero; | |
| 1828 #endif /* !HAVE_WINDOW_SYSTEM */ | |
| 1829 } | |
| 1830 | |
| 1831 DEFUN ("event-modifier-bits", Fevent_modifier_bits, 1, 1, 0, /* | |
| 442 | 1832 Return a number representing the modifier keys and buttons which were down |
| 428 | 1833 when the given mouse or keyboard event was produced. |
| 442 | 1834 See also the function `event-modifiers'. |
| 428 | 1835 */ |
| 1836 (event)) | |
| 1837 { | |
| 1838 again: | |
| 1839 CHECK_LIVE_EVENT (event); | |
| 934 | 1840 switch (XEVENT_TYPE (event)) |
| 1841 { | |
| 1842 case key_press_event: | |
| 1204 | 1843 return make_int (XEVENT_KEY_MODIFIERS (event)); |
| 934 | 1844 case button_press_event: |
| 1845 case button_release_event: | |
| 1204 | 1846 return make_int (XEVENT_BUTTON_MODIFIERS (event)); |
| 934 | 1847 case pointer_motion_event: |
| 1204 | 1848 return make_int (XEVENT_MOTION_MODIFIERS (event)); |
| 934 | 1849 case misc_user_event: |
| 1204 | 1850 return make_int (XEVENT_MISC_USER_MODIFIERS (event)); |
| 934 | 1851 default: |
| 1852 event = wrong_type_argument (intern ("key-or-mouse-event-p"), event); | |
| 1853 goto again; | |
| 1854 } | |
| 428 | 1855 } |
| 1856 | |
| 1857 DEFUN ("event-modifiers", Fevent_modifiers, 1, 1, 0, /* | |
| 442 | 1858 Return a list of symbols, the names of the modifier keys and buttons |
| 428 | 1859 which were down when the given mouse or keyboard event was produced. |
| 442 | 1860 See also the function `event-modifier-bits'. |
| 1861 | |
| 1862 The possible symbols in the list are | |
| 1863 | |
| 1864 `shift': The Shift key. Will not appear, in general, on key events | |
| 1865 where the keysym is an ASCII character, because using Shift | |
| 1866 on such a character converts it into another character rather | |
| 1867 than actually just adding a Shift modifier. | |
| 1868 | |
| 1869 `control': The Control key. | |
| 1870 | |
| 1871 `meta': The Meta key. On PC's and PC-style keyboards, this is generally | |
| 1872 labelled \"Alt\"; Meta is a holdover from early Lisp Machines and | |
| 1873 such, propagated through the X Window System. On Sun keyboards, | |
| 1874 this key is labelled with a diamond. | |
| 1875 | |
| 1876 `alt': The \"Alt\" key. Alt is in quotes because this does not refer | |
| 1877 to what it obviously should refer to, namely the Alt key on PC | |
| 1878 keyboards. Instead, it refers to the key labelled Alt on Sun | |
| 1879 keyboards, and to no key at all on PC keyboards. | |
| 1880 | |
| 1881 `super': The Super key. Most keyboards don't have any such key, but | |
| 1882 under X Windows using `xmodmap' you can assign any key (such as | |
| 1883 an underused right-shift, right-control, or right-alt key) to | |
| 1884 this key modifier. No support currently exists under MS Windows | |
| 1885 for generating these modifiers. | |
| 1886 | |
| 1887 `hyper': The Hyper key. Works just like the Super key. | |
| 1888 | |
| 1889 `button1': The mouse buttons. This means that the specified button was held | |
| 1890 `button2': down at the time the event occurred. NOTE: For button-press | |
| 1891 `button3': events, the button that was just pressed down does NOT appear in | |
| 1892 `button4': the modifiers. | |
| 1893 `button5': | |
| 1894 | |
| 1895 Button modifiers are currently ignored when defining and looking up key and | |
| 1896 mouse strokes in keymaps. This could be changed, which would allow a user to | |
| 1897 create button-chord actions, use a button as a key modifier and do other | |
| 1898 clever things. | |
| 428 | 1899 */ |
| 1900 (event)) | |
| 1901 { | |
| 1902 int mod = XINT (Fevent_modifier_bits (event)); | |
| 1903 Lisp_Object result = Qnil; | |
| 442 | 1904 struct gcpro gcpro1; |
| 1905 | |
| 1906 GCPRO1 (result); | |
| 1907 if (mod & XEMACS_MOD_SHIFT) result = Fcons (Qshift, result); | |
| 1908 if (mod & XEMACS_MOD_ALT) result = Fcons (Qalt, result); | |
| 1909 if (mod & XEMACS_MOD_HYPER) result = Fcons (Qhyper, result); | |
| 1910 if (mod & XEMACS_MOD_SUPER) result = Fcons (Qsuper, result); | |
| 1911 if (mod & XEMACS_MOD_META) result = Fcons (Qmeta, result); | |
| 1912 if (mod & XEMACS_MOD_CONTROL) result = Fcons (Qcontrol, result); | |
| 1913 if (mod & XEMACS_MOD_BUTTON1) result = Fcons (Qbutton1, result); | |
| 1914 if (mod & XEMACS_MOD_BUTTON2) result = Fcons (Qbutton2, result); | |
| 1915 if (mod & XEMACS_MOD_BUTTON3) result = Fcons (Qbutton3, result); | |
| 1916 if (mod & XEMACS_MOD_BUTTON4) result = Fcons (Qbutton4, result); | |
| 1917 if (mod & XEMACS_MOD_BUTTON5) result = Fcons (Qbutton5, result); | |
| 1918 RETURN_UNGCPRO (Fnreverse (result)); | |
| 428 | 1919 } |
| 1920 | |
| 1921 static int | |
| 1922 event_x_y_pixel_internal (Lisp_Object event, int *x, int *y, int relative) | |
| 1923 { | |
| 1924 struct window *w; | |
| 1925 struct frame *f; | |
| 1926 | |
| 934 | 1927 if (XEVENT_TYPE (event) == pointer_motion_event) |
| 1928 { | |
| 1204 | 1929 *x = XEVENT_MOTION_X (event); |
| 1930 *y = XEVENT_MOTION_Y (event); | |
| 934 | 1931 } |
| 1932 else if (XEVENT_TYPE (event) == button_press_event || | |
| 1933 XEVENT_TYPE (event) == button_release_event) | |
| 1934 { | |
| 1204 | 1935 *x = XEVENT_BUTTON_X (event); |
| 1936 *y = XEVENT_BUTTON_Y (event); | |
| 934 | 1937 } |
| 1938 else if (XEVENT_TYPE (event) == misc_user_event) | |
| 1939 { | |
| 1204 | 1940 *x = XEVENT_MISC_USER_X (event); |
| 1941 *y = XEVENT_MISC_USER_Y (event); | |
| 934 | 1942 } |
| 1943 else | |
| 1944 return 0; | |
| 428 | 1945 f = XFRAME (EVENT_CHANNEL (XEVENT (event))); |
| 1946 | |
| 1947 if (relative) | |
| 1948 { | |
| 1949 w = find_window_by_pixel_pos (*x, *y, f->root_window); | |
| 1950 | |
| 1951 if (!w) | |
| 442 | 1952 return 1; /* #### What should really happen here? */ |
| 428 | 1953 |
| 1954 *x -= w->pixel_left; | |
| 1955 *y -= w->pixel_top; | |
| 1956 } | |
| 1957 else | |
| 1958 { | |
| 1959 *y -= FRAME_REAL_TOP_TOOLBAR_HEIGHT (f) - | |
| 1960 FRAME_REAL_TOP_TOOLBAR_BORDER_WIDTH (f); | |
| 1961 *x -= FRAME_REAL_LEFT_TOOLBAR_WIDTH (f) - | |
| 1962 FRAME_REAL_LEFT_TOOLBAR_BORDER_WIDTH (f); | |
| 1963 } | |
| 1964 | |
| 1965 return 1; | |
| 1966 } | |
| 1967 | |
| 1968 DEFUN ("event-window-x-pixel", Fevent_window_x_pixel, 1, 1, 0, /* | |
| 1969 Return the X position in pixels of mouse event EVENT. | |
| 1970 The value returned is relative to the window the event occurred in. | |
| 1971 This will signal an error if the event is not a mouse event. | |
| 1972 See also `mouse-event-p' and `event-x-pixel'. | |
| 1973 */ | |
| 1974 (event)) | |
| 1975 { | |
| 1976 int x, y; | |
| 1977 | |
| 1978 CHECK_LIVE_EVENT (event); | |
| 1979 | |
| 1980 if (!event_x_y_pixel_internal (event, &x, &y, 1)) | |
| 1981 return wrong_type_argument (Qmouse_event_p, event); | |
| 1982 else | |
| 1983 return make_int (x); | |
| 1984 } | |
| 1985 | |
| 1986 DEFUN ("event-window-y-pixel", Fevent_window_y_pixel, 1, 1, 0, /* | |
| 1987 Return the Y position in pixels of mouse event EVENT. | |
| 1988 The value returned is relative to the window the event occurred in. | |
| 1989 This will signal an error if the event is not a mouse event. | |
| 1990 See also `mouse-event-p' and `event-y-pixel'. | |
| 1991 */ | |
| 1992 (event)) | |
| 1993 { | |
| 1994 int x, y; | |
| 1995 | |
| 1996 CHECK_LIVE_EVENT (event); | |
| 1997 | |
| 1998 if (!event_x_y_pixel_internal (event, &x, &y, 1)) | |
| 1999 return wrong_type_argument (Qmouse_event_p, event); | |
| 2000 else | |
| 2001 return make_int (y); | |
| 2002 } | |
| 2003 | |
| 2004 DEFUN ("event-x-pixel", Fevent_x_pixel, 1, 1, 0, /* | |
| 2005 Return the X position in pixels of mouse event EVENT. | |
| 2006 The value returned is relative to the frame the event occurred in. | |
| 2007 This will signal an error if the event is not a mouse event. | |
| 2008 See also `mouse-event-p' and `event-window-x-pixel'. | |
| 2009 */ | |
| 2010 (event)) | |
| 2011 { | |
| 2012 int x, y; | |
| 2013 | |
| 2014 CHECK_LIVE_EVENT (event); | |
| 2015 | |
| 2016 if (!event_x_y_pixel_internal (event, &x, &y, 0)) | |
| 2017 return wrong_type_argument (Qmouse_event_p, event); | |
| 2018 else | |
| 2019 return make_int (x); | |
| 2020 } | |
| 2021 | |
| 2022 DEFUN ("event-y-pixel", Fevent_y_pixel, 1, 1, 0, /* | |
| 2023 Return the Y position in pixels of mouse event EVENT. | |
| 2024 The value returned is relative to the frame the event occurred in. | |
| 2025 This will signal an error if the event is not a mouse event. | |
| 2026 See also `mouse-event-p' `event-window-y-pixel'. | |
| 2027 */ | |
| 2028 (event)) | |
| 2029 { | |
| 2030 int x, y; | |
| 2031 | |
| 2032 CHECK_LIVE_EVENT (event); | |
| 2033 | |
| 2034 if (!event_x_y_pixel_internal (event, &x, &y, 0)) | |
| 2035 return wrong_type_argument (Qmouse_event_p, event); | |
| 2036 else | |
| 2037 return make_int (y); | |
| 2038 } | |
| 2039 | |
| 2040 /* Given an event, return a value: | |
| 2041 | |
| 2042 OVER_TOOLBAR: over one of the 4 frame toolbars | |
| 2043 OVER_MODELINE: over a modeline | |
| 2044 OVER_BORDER: over an internal border | |
| 2045 OVER_NOTHING: over the text area, but not over text | |
| 2046 OVER_OUTSIDE: outside of the frame border | |
| 2047 OVER_TEXT: over text in the text area | |
| 2048 OVER_V_DIVIDER: over windows vertical divider | |
| 2049 | |
| 2050 and return: | |
| 2051 | |
| 2052 The X char position in CHAR_X, if not a null pointer. | |
| 2053 The Y char position in CHAR_Y, if not a null pointer. | |
| 2054 (These last two values are relative to the window the event is over.) | |
| 2055 The window it's over in W, if not a null pointer. | |
| 2056 The buffer position it's over in BUFP, if not a null pointer. | |
| 2057 The closest buffer position in CLOSEST, if not a null pointer. | |
| 2058 | |
| 2059 OBJ_X, OBJ_Y, OBJ1, and OBJ2 are as in pixel_to_glyph_translation(). | |
| 2060 */ | |
| 2061 | |
| 2062 static int | |
| 2063 event_pixel_translation (Lisp_Object event, int *char_x, int *char_y, | |
| 2064 int *obj_x, int *obj_y, | |
| 665 | 2065 struct window **w, Charbpos *bufp, Charbpos *closest, |
| 428 | 2066 Charcount *modeline_closest, |
| 2067 Lisp_Object *obj1, Lisp_Object *obj2) | |
| 2068 { | |
| 2069 int pix_x = 0; | |
| 2070 int pix_y = 0; | |
| 2071 int result; | |
| 2072 Lisp_Object frame; | |
| 2073 | |
| 2074 int ret_x, ret_y, ret_obj_x, ret_obj_y; | |
| 2075 struct window *ret_w; | |
| 665 | 2076 Charbpos ret_bufp, ret_closest; |
| 428 | 2077 Charcount ret_modeline_closest; |
| 2078 Lisp_Object ret_obj1, ret_obj2; | |
| 2079 | |
| 2080 CHECK_LIVE_EVENT (event); | |
| 934 | 2081 frame = XEVENT_CHANNEL (event); |
| 2082 switch (XEVENT_TYPE (event)) | |
| 2083 { | |
| 2084 case pointer_motion_event : | |
| 1204 | 2085 pix_x = XEVENT_MOTION_X (event); |
| 2086 pix_y = XEVENT_MOTION_Y (event); | |
| 934 | 2087 break; |
| 2088 case button_press_event : | |
| 2089 case button_release_event : | |
| 1204 | 2090 pix_x = XEVENT_BUTTON_X (event); |
| 2091 pix_y = XEVENT_BUTTON_Y (event); | |
| 934 | 2092 break; |
| 2093 case misc_user_event : | |
| 1204 | 2094 pix_x = XEVENT_MISC_USER_X (event); |
| 2095 pix_y = XEVENT_MISC_USER_Y (event); | |
| 934 | 2096 break; |
| 2097 default: | |
| 2098 dead_wrong_type_argument (Qmouse_event_p, event); | |
| 2099 } | |
| 428 | 2100 |
| 2101 result = pixel_to_glyph_translation (XFRAME (frame), pix_x, pix_y, | |
| 2102 &ret_x, &ret_y, &ret_obj_x, &ret_obj_y, | |
| 2103 &ret_w, &ret_bufp, &ret_closest, | |
| 2104 &ret_modeline_closest, | |
| 2105 &ret_obj1, &ret_obj2); | |
| 2106 | |
| 2107 if (result == OVER_NOTHING || result == OVER_OUTSIDE) | |
| 2108 ret_bufp = 0; | |
| 2109 else if (ret_w && NILP (ret_w->buffer)) | |
| 2110 /* Why does this happen? (Does it still happen?) | |
| 2111 I guess the window has gotten reused as a non-leaf... */ | |
| 2112 ret_w = 0; | |
| 2113 | |
| 2114 /* #### pixel_to_glyph_translation() sometimes returns garbage... | |
| 2115 The word has type Lisp_Type_Record (presumably meaning `extent') but the | |
| 2116 pointer points to random memory, often filled with 0, sometimes not. | |
| 2117 */ | |
| 2118 /* #### Chuck, do we still need this crap? */ | |
|
5055
79564cbad5f3
Simplify assertion in events.c so it will build under Visual Studio 6
Vin Shelton <acs@xemacs.org>
parents:
5052
diff
changeset
|
2119 #ifdef HAVE_TOOLBARS |
|
5050
6f2158fa75ed
Fix quick-build, use asserts() in place of ABORT()
Ben Wing <ben@xemacs.org>
parents:
4962
diff
changeset
|
2120 assert (NILP (ret_obj1) || GLYPHP (ret_obj1) |
|
5055
79564cbad5f3
Simplify assertion in events.c so it will build under Visual Studio 6
Vin Shelton <acs@xemacs.org>
parents:
5052
diff
changeset
|
2121 || TOOLBAR_BUTTONP (ret_obj1)); |
|
79564cbad5f3
Simplify assertion in events.c so it will build under Visual Studio 6
Vin Shelton <acs@xemacs.org>
parents:
5052
diff
changeset
|
2122 #else |
|
79564cbad5f3
Simplify assertion in events.c so it will build under Visual Studio 6
Vin Shelton <acs@xemacs.org>
parents:
5052
diff
changeset
|
2123 assert (NILP (ret_obj1) || GLYPHP (ret_obj1)); |
| 428 | 2124 #endif |
|
5050
6f2158fa75ed
Fix quick-build, use asserts() in place of ABORT()
Ben Wing <ben@xemacs.org>
parents:
4962
diff
changeset
|
2125 assert (NILP (ret_obj2) || EXTENTP (ret_obj2) || CONSP (ret_obj2)); |
| 428 | 2126 |
| 2127 if (char_x) | |
| 2128 *char_x = ret_x; | |
| 2129 if (char_y) | |
| 2130 *char_y = ret_y; | |
| 2131 if (obj_x) | |
| 2132 *obj_x = ret_obj_x; | |
| 2133 if (obj_y) | |
| 2134 *obj_y = ret_obj_y; | |
| 2135 if (w) | |
| 2136 *w = ret_w; | |
| 2137 if (bufp) | |
| 2138 *bufp = ret_bufp; | |
| 2139 if (closest) | |
| 2140 *closest = ret_closest; | |
| 2141 if (modeline_closest) | |
| 2142 *modeline_closest = ret_modeline_closest; | |
| 2143 if (obj1) | |
| 2144 *obj1 = ret_obj1; | |
| 2145 if (obj2) | |
| 2146 *obj2 = ret_obj2; | |
| 2147 | |
| 2148 return result; | |
| 2149 } | |
| 2150 | |
| 2151 DEFUN ("event-over-text-area-p", Fevent_over_text_area_p, 1, 1, 0, /* | |
| 2152 Return t if the mouse event EVENT occurred over the text area of a window. | |
| 2153 The modeline is not considered to be part of the text area. | |
| 2154 */ | |
| 2155 (event)) | |
| 2156 { | |
| 2157 int result = event_pixel_translation (event, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0); | |
| 2158 | |
| 2159 return result == OVER_TEXT || result == OVER_NOTHING ? Qt : Qnil; | |
| 2160 } | |
| 2161 | |
| 2162 DEFUN ("event-over-modeline-p", Fevent_over_modeline_p, 1, 1, 0, /* | |
| 2163 Return t if the mouse event EVENT occurred over the modeline of a window. | |
| 2164 */ | |
| 2165 (event)) | |
| 2166 { | |
| 2167 int result = event_pixel_translation (event, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0); | |
| 2168 | |
| 2169 return result == OVER_MODELINE ? Qt : Qnil; | |
| 2170 } | |
| 2171 | |
| 2172 DEFUN ("event-over-border-p", Fevent_over_border_p, 1, 1, 0, /* | |
| 2173 Return t if the mouse event EVENT occurred over an internal border. | |
| 2174 */ | |
| 2175 (event)) | |
| 2176 { | |
| 2177 int result = event_pixel_translation (event, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0); | |
| 2178 | |
| 2179 return result == OVER_BORDER ? Qt : Qnil; | |
| 2180 } | |
| 2181 | |
| 2182 DEFUN ("event-over-toolbar-p", Fevent_over_toolbar_p, 1, 1, 0, /* | |
| 2183 Return t if the mouse event EVENT occurred over a toolbar. | |
| 2184 */ | |
| 2185 (event)) | |
| 2186 { | |
| 2187 int result = event_pixel_translation (event, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0); | |
| 2188 | |
| 2189 return result == OVER_TOOLBAR ? Qt : Qnil; | |
| 2190 } | |
| 2191 | |
| 2192 DEFUN ("event-over-vertical-divider-p", Fevent_over_vertical_divider_p, 1, 1, 0, /* | |
| 2193 Return t if the mouse event EVENT occurred over a window divider. | |
| 2194 */ | |
| 2195 (event)) | |
| 2196 { | |
| 2197 int result = event_pixel_translation (event, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0); | |
| 2198 | |
| 2199 return result == OVER_V_DIVIDER ? Qt : Qnil; | |
| 2200 } | |
| 2201 | |
| 2202 struct console * | |
| 2203 event_console_or_selected (Lisp_Object event) | |
| 2204 { | |
| 2205 Lisp_Object channel = EVENT_CHANNEL (XEVENT (event)); | |
| 2206 Lisp_Object console = CDFW_CONSOLE (channel); | |
| 2207 | |
| 2208 if (NILP (console)) | |
| 2209 console = Vselected_console; | |
| 2210 | |
| 2211 return XCONSOLE (console); | |
| 2212 } | |
| 2213 | |
| 2214 DEFUN ("event-channel", Fevent_channel, 1, 1, 0, /* | |
| 2215 Return the channel that the event EVENT occurred on. | |
| 2216 This will be a frame, device, console, or nil for some types | |
| 2217 of events (e.g. eval events). | |
| 2218 */ | |
| 2219 (event)) | |
| 2220 { | |
| 2221 CHECK_LIVE_EVENT (event); | |
| 2222 return EVENT_CHANNEL (XEVENT (event)); | |
| 2223 } | |
| 2224 | |
| 2225 DEFUN ("event-window", Fevent_window, 1, 1, 0, /* | |
| 2226 Return the window over which mouse event EVENT occurred. | |
| 2227 This may be nil if the event occurred in the border or over a toolbar. | |
| 2228 The modeline is considered to be within the window it describes. | |
| 2229 */ | |
| 2230 (event)) | |
| 2231 { | |
| 2232 struct window *w; | |
| 2233 | |
| 2234 event_pixel_translation (event, 0, 0, 0, 0, &w, 0, 0, 0, 0, 0); | |
| 2235 | |
| 2236 if (!w) | |
| 2237 return Qnil; | |
| 2238 else | |
| 2239 { | |
| 793 | 2240 return wrap_window (w); |
| 428 | 2241 } |
| 2242 } | |
| 2243 | |
| 2244 DEFUN ("event-point", Fevent_point, 1, 1, 0, /* | |
| 2245 Return the character position of the mouse event EVENT. | |
| 2246 If the event did not occur over a window, or did not occur over text, | |
| 2247 then this returns nil. Otherwise, it returns a position in the buffer | |
| 2248 visible in the event's window. | |
| 2249 */ | |
| 2250 (event)) | |
| 2251 { | |
| 665 | 2252 Charbpos bufp; |
| 428 | 2253 struct window *w; |
| 2254 | |
| 2255 event_pixel_translation (event, 0, 0, 0, 0, &w, &bufp, 0, 0, 0, 0); | |
| 2256 | |
| 2257 return w && bufp ? make_int (bufp) : Qnil; | |
| 2258 } | |
| 2259 | |
| 2260 DEFUN ("event-closest-point", Fevent_closest_point, 1, 1, 0, /* | |
| 2261 Return the character position closest to the mouse event EVENT. | |
| 2262 If the event did not occur over a window or over text, return the | |
| 2263 closest point to the location of the event. If the Y pixel position | |
| 2264 overlaps a window and the X pixel position is to the left of that | |
| 2265 window, the closest point is the beginning of the line containing the | |
| 2266 Y position. If the Y pixel position overlaps a window and the X pixel | |
| 2267 position is to the right of that window, the closest point is the end | |
| 2268 of the line containing the Y position. If the Y pixel position is | |
| 2269 above a window, return 0. If it is below the last character in a window, | |
| 2270 return the value of (window-end). | |
| 2271 */ | |
| 2272 (event)) | |
| 2273 { | |
| 665 | 2274 Charbpos bufp; |
| 428 | 2275 |
| 2276 event_pixel_translation (event, 0, 0, 0, 0, 0, 0, &bufp, 0, 0, 0); | |
| 2277 | |
| 2278 return bufp ? make_int (bufp) : Qnil; | |
| 2279 } | |
| 2280 | |
| 2281 DEFUN ("event-x", Fevent_x, 1, 1, 0, /* | |
| 2282 Return the X position of the mouse event EVENT in characters. | |
| 2283 This is relative to the window the event occurred over. | |
| 2284 */ | |
| 2285 (event)) | |
| 2286 { | |
| 2287 int char_x; | |
| 2288 | |
| 2289 event_pixel_translation (event, &char_x, 0, 0, 0, 0, 0, 0, 0, 0, 0); | |
| 2290 | |
| 2291 return make_int (char_x); | |
| 2292 } | |
| 2293 | |
| 2294 DEFUN ("event-y", Fevent_y, 1, 1, 0, /* | |
| 2295 Return the Y position of the mouse event EVENT in characters. | |
| 2296 This is relative to the window the event occurred over. | |
| 2297 */ | |
| 2298 (event)) | |
| 2299 { | |
| 2300 int char_y; | |
| 2301 | |
| 2302 event_pixel_translation (event, 0, &char_y, 0, 0, 0, 0, 0, 0, 0, 0); | |
| 2303 | |
| 2304 return make_int (char_y); | |
| 2305 } | |
| 2306 | |
| 2307 DEFUN ("event-modeline-position", Fevent_modeline_position, 1, 1, 0, /* | |
| 2308 Return the character position in the modeline that EVENT occurred over. | |
| 2309 EVENT should be a mouse event. If EVENT did not occur over a modeline, | |
| 2310 nil is returned. You can determine the actual character that the | |
| 2311 event occurred over by looking in `generated-modeline-string' at the | |
| 2312 returned character position. Note that `generated-modeline-string' | |
| 2313 is buffer-local, and you must use EVENT's buffer when retrieving | |
| 2314 `generated-modeline-string' in order to get accurate results. | |
| 2315 */ | |
| 2316 (event)) | |
| 2317 { | |
| 2318 Charcount mbufp; | |
| 2319 int where; | |
| 2320 | |
| 2321 where = event_pixel_translation (event, 0, 0, 0, 0, 0, 0, 0, &mbufp, 0, 0); | |
| 2322 | |
| 2323 return (mbufp < 0 || where != OVER_MODELINE) ? Qnil : make_int (mbufp); | |
| 2324 } | |
| 2325 | |
| 2326 DEFUN ("event-glyph", Fevent_glyph, 1, 1, 0, /* | |
| 2327 Return the glyph that the mouse event EVENT occurred over, or nil. | |
| 2328 */ | |
| 2329 (event)) | |
| 2330 { | |
| 2331 Lisp_Object glyph; | |
| 2332 struct window *w; | |
| 2333 | |
| 2334 event_pixel_translation (event, 0, 0, 0, 0, &w, 0, 0, 0, &glyph, 0); | |
| 2335 | |
| 2336 return w && GLYPHP (glyph) ? glyph : Qnil; | |
| 2337 } | |
| 2338 | |
| 2339 DEFUN ("event-glyph-extent", Fevent_glyph_extent, 1, 1, 0, /* | |
| 2340 Return the extent of the glyph that the mouse event EVENT occurred over. | |
| 2341 If the event did not occur over a glyph, nil is returned. | |
| 2342 */ | |
| 2343 (event)) | |
| 2344 { | |
| 2345 Lisp_Object extent; | |
| 2346 struct window *w; | |
| 2347 | |
| 2348 event_pixel_translation (event, 0, 0, 0, 0, &w, 0, 0, 0, 0, &extent); | |
| 2349 | |
| 2350 return w && EXTENTP (extent) ? extent : Qnil; | |
| 2351 } | |
| 2352 | |
| 2353 DEFUN ("event-glyph-x-pixel", Fevent_glyph_x_pixel, 1, 1, 0, /* | |
| 2354 Return the X pixel position of EVENT relative to the glyph it occurred over. | |
| 2355 EVENT should be a mouse event. If the event did not occur over a glyph, | |
| 2356 nil is returned. | |
| 2357 */ | |
| 2358 (event)) | |
| 2359 { | |
| 2360 Lisp_Object extent; | |
| 2361 struct window *w; | |
| 2362 int obj_x; | |
| 2363 | |
| 2364 event_pixel_translation (event, 0, 0, &obj_x, 0, &w, 0, 0, 0, 0, &extent); | |
| 2365 | |
| 2366 return w && EXTENTP (extent) ? make_int (obj_x) : Qnil; | |
| 2367 } | |
| 2368 | |
| 2369 DEFUN ("event-glyph-y-pixel", Fevent_glyph_y_pixel, 1, 1, 0, /* | |
| 2370 Return the Y pixel position of EVENT relative to the glyph it occurred over. | |
| 2371 EVENT should be a mouse event. If the event did not occur over a glyph, | |
| 2372 nil is returned. | |
| 2373 */ | |
| 2374 (event)) | |
| 2375 { | |
| 2376 Lisp_Object extent; | |
| 2377 struct window *w; | |
| 2378 int obj_y; | |
| 2379 | |
| 2380 event_pixel_translation (event, 0, 0, 0, &obj_y, &w, 0, 0, 0, 0, &extent); | |
| 2381 | |
| 2382 return w && EXTENTP (extent) ? make_int (obj_y) : Qnil; | |
| 2383 } | |
| 2384 | |
| 2385 DEFUN ("event-toolbar-button", Fevent_toolbar_button, 1, 1, 0, /* | |
| 2386 Return the toolbar button that the mouse event EVENT occurred over. | |
| 2387 If the event did not occur over a toolbar button, nil is returned. | |
| 2388 */ | |
| 2340 | 2389 (USED_IF_TOOLBARS (event))) |
| 428 | 2390 { |
| 2391 #ifdef HAVE_TOOLBARS | |
| 2392 Lisp_Object button; | |
| 2393 | |
| 2394 int result = event_pixel_translation (event, 0, 0, 0, 0, 0, 0, 0, 0, &button, 0); | |
| 2395 | |
| 2396 return result == OVER_TOOLBAR && TOOLBAR_BUTTONP (button) ? button : Qnil; | |
| 2397 #else | |
| 2398 return Qnil; | |
| 2399 #endif | |
| 2400 } | |
| 2401 | |
| 2402 DEFUN ("event-process", Fevent_process, 1, 1, 0, /* | |
| 444 | 2403 Return the process of the process-output event EVENT. |
| 428 | 2404 */ |
| 2405 (event)) | |
| 2406 { | |
| 934 | 2407 CHECK_EVENT_TYPE (event, process_event, Qprocess_event_p); |
| 1204 | 2408 return XEVENT_PROCESS_PROCESS (event); |
| 428 | 2409 } |
| 2410 | |
| 2411 DEFUN ("event-function", Fevent_function, 1, 1, 0, /* | |
| 2412 Return the callback function of EVENT. | |
| 2413 EVENT should be a timeout, misc-user, or eval event. | |
| 2414 */ | |
| 2415 (event)) | |
| 2416 { | |
| 2417 again: | |
| 2418 CHECK_LIVE_EVENT (event); | |
| 934 | 2419 switch (XEVENT_TYPE (event)) |
| 2420 { | |
| 2421 case timeout_event: | |
| 1204 | 2422 return XEVENT_TIMEOUT_FUNCTION (event); |
| 934 | 2423 case misc_user_event: |
| 1204 | 2424 return XEVENT_MISC_USER_FUNCTION (event); |
| 934 | 2425 case eval_event: |
| 1204 | 2426 return XEVENT_EVAL_FUNCTION (event); |
| 934 | 2427 default: |
| 2428 event = wrong_type_argument (intern ("timeout-or-eval-event-p"), event); | |
| 2429 goto again; | |
| 2430 } | |
| 428 | 2431 } |
| 2432 | |
| 2433 DEFUN ("event-object", Fevent_object, 1, 1, 0, /* | |
| 2434 Return the callback function argument of EVENT. | |
| 2435 EVENT should be a timeout, misc-user, or eval event. | |
| 2436 */ | |
| 2437 (event)) | |
| 2438 { | |
| 2439 again: | |
| 2440 CHECK_LIVE_EVENT (event); | |
| 934 | 2441 switch (XEVENT_TYPE (event)) |
| 2442 { | |
| 2443 case timeout_event: | |
| 1204 | 2444 return XEVENT_TIMEOUT_OBJECT (event); |
| 934 | 2445 case misc_user_event: |
| 1204 | 2446 return XEVENT_MISC_USER_OBJECT (event); |
| 934 | 2447 case eval_event: |
| 1204 | 2448 return XEVENT_EVAL_OBJECT (event); |
| 934 | 2449 default: |
| 2450 event = wrong_type_argument (intern ("timeout-or-eval-event-p"), event); | |
| 2451 goto again; | |
| 2452 } | |
| 428 | 2453 } |
| 2454 | |
| 2455 DEFUN ("event-properties", Fevent_properties, 1, 1, 0, /* | |
| 2456 Return a list of all of the properties of EVENT. | |
| 2457 This is in the form of a property list (alternating keyword/value pairs). | |
| 2458 */ | |
| 2459 (event)) | |
| 2460 { | |
| 2461 Lisp_Object props = Qnil; | |
| 440 | 2462 Lisp_Event *e; |
| 428 | 2463 struct gcpro gcpro1; |
| 2464 | |
| 2465 CHECK_LIVE_EVENT (event); | |
| 2466 e = XEVENT (event); | |
| 2467 GCPRO1 (props); | |
| 2468 | |
| 2469 props = cons3 (Qtimestamp, Fevent_timestamp (event), props); | |
| 2470 | |
| 934 | 2471 switch (EVENT_TYPE (e)) |
| 428 | 2472 { |
| 2500 | 2473 default: ABORT (); |
| 428 | 2474 |
| 2475 case process_event: | |
| 1204 | 2476 props = cons3 (Qprocess, EVENT_PROCESS_PROCESS (e), props); |
| 428 | 2477 break; |
| 2478 | |
| 2479 case timeout_event: | |
| 2480 props = cons3 (Qobject, Fevent_object (event), props); | |
| 2481 props = cons3 (Qfunction, Fevent_function (event), props); | |
| 1204 | 2482 props = cons3 (Qid, make_int (EVENT_TIMEOUT_ID_NUMBER (e)), props); |
| 428 | 2483 break; |
| 2484 | |
| 2485 case key_press_event: | |
| 2486 props = cons3 (Qmodifiers, Fevent_modifiers (event), props); | |
| 2487 props = cons3 (Qkey, Fevent_key (event), props); | |
| 2488 break; | |
| 2489 | |
| 2490 case button_press_event: | |
| 2491 case button_release_event: | |
| 2492 props = cons3 (Qy, Fevent_y_pixel (event), props); | |
| 2493 props = cons3 (Qx, Fevent_x_pixel (event), props); | |
| 2494 props = cons3 (Qmodifiers, Fevent_modifiers (event), props); | |
| 2495 props = cons3 (Qbutton, Fevent_button (event), props); | |
| 2496 break; | |
| 2497 | |
| 2498 case pointer_motion_event: | |
| 2499 props = cons3 (Qmodifiers, Fevent_modifiers (event), props); | |
| 2500 props = cons3 (Qy, Fevent_y_pixel (event), props); | |
| 2501 props = cons3 (Qx, Fevent_x_pixel (event), props); | |
| 2502 break; | |
| 2503 | |
| 2504 case misc_user_event: | |
| 2505 props = cons3 (Qobject, Fevent_object (event), props); | |
| 2506 props = cons3 (Qfunction, Fevent_function (event), props); | |
| 2507 props = cons3 (Qy, Fevent_y_pixel (event), props); | |
| 2508 props = cons3 (Qx, Fevent_x_pixel (event), props); | |
| 2509 props = cons3 (Qmodifiers, Fevent_modifiers (event), props); | |
| 2510 props = cons3 (Qbutton, Fevent_button (event), props); | |
| 2511 break; | |
| 2512 | |
| 2513 case eval_event: | |
| 2514 props = cons3 (Qobject, Fevent_object (event), props); | |
| 2515 props = cons3 (Qfunction, Fevent_function (event), props); | |
| 2516 break; | |
| 2517 | |
| 2518 case magic_eval_event: | |
| 2519 case magic_event: | |
| 2520 break; | |
| 2521 | |
| 2522 case empty_event: | |
| 2523 RETURN_UNGCPRO (Qnil); | |
| 2524 break; | |
| 2525 } | |
| 2526 | |
| 2527 props = cons3 (Qchannel, Fevent_channel (event), props); | |
| 2528 UNGCPRO; | |
| 2529 | |
| 2530 return props; | |
| 2531 } | |
| 2532 | |
| 2533 | |
| 2534 /************************************************************************/ | |
| 2535 /* initialization */ | |
| 2536 /************************************************************************/ | |
| 2537 | |
| 2538 void | |
| 2539 syms_of_events (void) | |
| 2540 { | |
|
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2541 INIT_LISP_OBJECT (event); |
| 1204 | 2542 #ifdef EVENT_DATA_AS_OBJECTS |
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2543 INIT_LISP_OBJECT (key_data); |
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2544 INIT_LISP_OBJECT (button_data); |
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2545 INIT_LISP_OBJECT (motion_data); |
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2546 INIT_LISP_OBJECT (process_data); |
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2547 INIT_LISP_OBJECT (timeout_data); |
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2548 INIT_LISP_OBJECT (eval_data); |
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2549 INIT_LISP_OBJECT (misc_user_data); |
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2550 INIT_LISP_OBJECT (magic_eval_data); |
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2551 INIT_LISP_OBJECT (magic_data); |
| 1204 | 2552 #endif /* EVENT_DATA_AS_OBJECTS */ |
| 442 | 2553 |
| 428 | 2554 DEFSUBR (Fcharacter_to_event); |
| 2555 DEFSUBR (Fevent_to_character); | |
| 2556 | |
| 2557 DEFSUBR (Fmake_event); | |
| 2558 DEFSUBR (Fdeallocate_event); | |
| 2559 DEFSUBR (Fcopy_event); | |
| 2560 DEFSUBR (Feventp); | |
| 2561 DEFSUBR (Fevent_live_p); | |
| 2562 DEFSUBR (Fevent_type); | |
| 2563 DEFSUBR (Fevent_properties); | |
| 2564 | |
| 2565 DEFSUBR (Fevent_timestamp); | |
| 442 | 2566 DEFSUBR (Fevent_timestamp_lessp); |
| 428 | 2567 DEFSUBR (Fevent_key); |
| 2568 DEFSUBR (Fevent_button); | |
| 2569 DEFSUBR (Fevent_modifier_bits); | |
| 2570 DEFSUBR (Fevent_modifiers); | |
| 2571 DEFSUBR (Fevent_x_pixel); | |
| 2572 DEFSUBR (Fevent_y_pixel); | |
| 2573 DEFSUBR (Fevent_window_x_pixel); | |
| 2574 DEFSUBR (Fevent_window_y_pixel); | |
| 2575 DEFSUBR (Fevent_over_text_area_p); | |
| 2576 DEFSUBR (Fevent_over_modeline_p); | |
| 2577 DEFSUBR (Fevent_over_border_p); | |
| 2578 DEFSUBR (Fevent_over_toolbar_p); | |
| 2579 DEFSUBR (Fevent_over_vertical_divider_p); | |
| 2580 DEFSUBR (Fevent_channel); | |
| 2581 DEFSUBR (Fevent_window); | |
| 2582 DEFSUBR (Fevent_point); | |
| 2583 DEFSUBR (Fevent_closest_point); | |
| 2584 DEFSUBR (Fevent_x); | |
| 2585 DEFSUBR (Fevent_y); | |
| 2586 DEFSUBR (Fevent_modeline_position); | |
| 2587 DEFSUBR (Fevent_glyph); | |
| 2588 DEFSUBR (Fevent_glyph_extent); | |
| 2589 DEFSUBR (Fevent_glyph_x_pixel); | |
| 2590 DEFSUBR (Fevent_glyph_y_pixel); | |
| 2591 DEFSUBR (Fevent_toolbar_button); | |
| 2592 DEFSUBR (Fevent_process); | |
| 2593 DEFSUBR (Fevent_function); | |
| 2594 DEFSUBR (Fevent_object); | |
| 2595 | |
| 563 | 2596 DEFSYMBOL (Qeventp); |
| 2597 DEFSYMBOL (Qevent_live_p); | |
| 2598 DEFSYMBOL (Qkey_press_event_p); | |
| 2599 DEFSYMBOL (Qbutton_event_p); | |
| 2600 DEFSYMBOL (Qmouse_event_p); | |
| 2601 DEFSYMBOL (Qprocess_event_p); | |
| 2602 DEFSYMBOL (Qkey_press); | |
| 2603 DEFSYMBOL (Qbutton_press); | |
| 2604 DEFSYMBOL (Qbutton_release); | |
| 2605 DEFSYMBOL (Qmisc_user); | |
| 2828 | 2606 DEFSYMBOL (Qcharacter_of_keysym); |
| 563 | 2607 DEFSYMBOL (Qascii_character); |
| 428 | 2608 |
| 2609 defsymbol (&QKbackspace, "backspace"); | |
| 2610 defsymbol (&QKtab, "tab"); | |
| 2611 defsymbol (&QKlinefeed, "linefeed"); | |
| 2612 defsymbol (&QKreturn, "return"); | |
| 2613 defsymbol (&QKescape, "escape"); | |
| 2614 defsymbol (&QKspace, "space"); | |
| 2615 defsymbol (&QKdelete, "delete"); | |
| 2616 } | |
| 2617 | |
| 2618 | |
| 2619 void | |
| 2620 reinit_vars_of_events (void) | |
| 2621 { | |
| 2622 Vevent_resource = Qnil; | |
| 3092 | 2623 #ifdef NEW_GC |
|
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2624 staticpro_nodump (&Vevent_resource); |
| 3092 | 2625 #endif /* NEW_GC */ |
| 428 | 2626 } |
| 2627 | |
| 2628 void | |
| 2629 vars_of_events (void) | |
| 2630 { | |
| 2631 } |