2 * Copyright 1985, 1987, 1990, 1998 The Open Group
3 * Copyright 2008 Dan Nicholson
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
9 * and/or sell copies of the Software, and to permit persons to whom the
10 * Software is furnished to do so, subject to the following conditions:
12 * The above copyright notice and this permission notice shall be included in
13 * all copies or substantial portions of the Software.
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
18 * AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
19 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
20 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
22 * Except as contained in this notice, the names of the authors or their
23 * institutions shall not be used in advertising or otherwise to promote the
24 * sale, use or other dealings in this Software without prior written
25 * authorization from the authors.
28 /************************************************************
29 * Copyright (c) 1993 by Silicon Graphics Computer Systems, Inc.
31 * Permission to use, copy, modify, and distribute this
32 * software and its documentation for any purpose and without
33 * fee is hereby granted, provided that the above copyright
34 * notice appear in all copies and that both that copyright
35 * notice and this permission notice appear in supporting
36 * documentation, and that the name of Silicon Graphics not be
37 * used in advertising or publicity pertaining to distribution
38 * of the software without specific prior written permission.
39 * Silicon Graphics makes no representation about the suitability
40 * of this software for any purpose. It is provided "as is"
41 * without any express or implied warranty.
43 * SILICON GRAPHICS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS
44 * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
45 * AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL SILICON
46 * GRAPHICS BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL
47 * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
48 * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
49 * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH
50 * THE USE OR PERFORMANCE OF THIS SOFTWARE.
52 ********************************************************/
55 * Copyright © 2009 Daniel Stone
57 * Permission is hereby granted, free of charge, to any person obtaining a
58 * copy of this software and associated documentation files (the "Software"),
59 * to deal in the Software without restriction, including without limitation
60 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
61 * and/or sell copies of the Software, and to permit persons to whom the
62 * Software is furnished to do so, subject to the following conditions:
64 * The above copyright notice and this permission notice (including the next
65 * paragraph) shall be included in all copies or substantial portions of the
68 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
69 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
70 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
71 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
72 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
73 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
74 * DEALINGS IN THE SOFTWARE.
76 * Author: Daniel Stone <daniel@fooishbar.org>
86 #include <xkbcommon/xkbcommon-names.h>
87 #include <xkbcommon/xkbcommon-keysyms.h>
89 typedef uint32_t xkb_keycode_t;
90 typedef uint32_t xkb_keysym_t;
91 typedef uint32_t xkb_mod_index_t;
92 typedef uint32_t xkb_mod_mask_t;
93 typedef uint32_t xkb_group_index_t;
94 typedef uint32_t xkb_led_index_t;
96 #define XKB_MOD_INVALID (0xffffffff)
97 #define XKB_GROUP_INVALID (0xffffffff)
98 #define XKB_KEYCODE_INVALID (0xffffffff)
99 #define XKB_LED_INVALID (0xffffffff)
101 #define XKB_KEYCODE_MAX (0xffffffff - 1)
102 #define xkb_keycode_is_legal_ext(kc) (kc <= XKB_KEYCODE_MAX)
103 #define xkb_keycode_is_legal_x11(kc) (kc >= 8 && kc <= 255)
106 * Names to compile a keymap with, also known as RMLVO. These names together
107 * should be the primary identifier for a keymap.
109 struct xkb_rule_names {
118 * Opaque context object; may only be created, accessed, manipulated and
119 * destroyed through the xkb_context_*() API.
124 * Opaque keymap object; may only be created, accessed, manipulated and
125 * destroyed through the xkb_state_*() API.
130 * Opaque state object; may only be created, accessed, manipulated and
131 * destroyed through the xkb_state_*() API.
140 * Returns the name for a keysym as a string; will return unknown Unicode
141 * codepoints as "Ua1b2", and other unknown keysyms as "0xabcd1234".
142 * If the buffer passed is too small, the string is truncated; a size of
143 * at least 32 bytes is recommended.
146 xkb_keysym_get_name(xkb_keysym_t ks, char *buffer, size_t size);
149 * See xkb_keysym_get_name comments: this function will accept any string
150 * from that function.
153 xkb_keysym_from_name(const char *s);
156 * Return the printable representation of the keystring in Unicode/UTF-8.
157 * The buffer passed must be at least 7 bytes long. The return value
158 * is the number of bytes written to the buffer. A return value of zero
159 * means that the keysym does not have a known printable Unicode
160 * representation, and a return value of -1 means that the buffer was too
161 * small to contain the return.
164 xkb_keysym_to_utf8(xkb_keysym_t keysym, char *buffer, size_t size);
167 * Returns the Unicode/UTF-32 representation of the provided keysym, which is
168 * also compatible with UCS-4. A return value of zero means the keysym does
169 * not have a known printable Unicode representation.
172 xkb_keysym_to_utf32(xkb_keysym_t keysym);
175 * @defgroup context XKB contexts
176 * Every keymap compilation request must have an XKB context associated with
177 * it. The context keeps around state such as the include path.
182 enum xkb_context_flags {
183 /** Create this context with an empty include path. */
184 XKB_CONTEXT_NO_DEFAULT_INCLUDES = 1,
188 * Returns a new XKB context, or NULL on failure. If successful, the caller
189 * holds a reference on the context, and must free it when finished with
190 * xkb_context_unref().
193 xkb_context_new(enum xkb_context_flags flags);
196 * Appends a new entry to the include path used for keymap compilation.
197 * Returns 1 on success, or 0 if the include path could not be added or is
201 xkb_context_include_path_append(struct xkb_context *context, const char *path);
204 * Appends the default include paths to the context's current include path.
205 * Returns 1 on success, or 0 if the primary include path could not be
209 xkb_context_include_path_append_default(struct xkb_context *context);
212 * Removes all entries from the context's include path, and inserts the
213 * default paths. Returns 1 on success, or 0 if the primary include path
214 * could not be added.
217 xkb_context_include_path_reset_defaults(struct xkb_context *context);
220 * Removes all entries from the context's include path.
223 xkb_context_include_path_clear(struct xkb_context *context);
226 * Returns the number of include paths currently active in the context.
229 xkb_context_num_include_paths(struct xkb_context *context);
232 * Returns the include path at the specified index within the context.
235 xkb_context_include_path_get(struct xkb_context *context, unsigned int index);
238 * Takes a new reference on an XKB context.
241 xkb_context_ref(struct xkb_context *context);
244 * Releases a reference on an XKB context, and possibly frees it.
247 xkb_context_unref(struct xkb_context *context);
252 * @defgroup map Keymap management
253 * These utility functions allow you to create and deallocate XKB keymaps.
258 enum xkb_map_compile_flags {
259 /** Apparently you can't have empty enums. What a drag. */
260 XKB_MAP_COMPILE_PLACEHOLDER = 0,
264 * The primary keymap entry point: creates a new XKB keymap from a set of
265 * RMLVO (Rules + Model + Layout + Variant + Option) names.
267 * You should almost certainly be using this and nothing else to create
271 xkb_map_new_from_names(struct xkb_context *context,
272 const struct xkb_rule_names *names,
273 enum xkb_map_compile_flags flags);
275 enum xkb_keymap_format {
276 /** The current/classic XKB text format, as generated by xkbcomp -xkb. */
277 XKB_KEYMAP_FORMAT_TEXT_V1 = 1,
281 * Creates an XKB keymap from a full text XKB keymap passed into the
285 xkb_map_new_from_file(struct xkb_context *context, FILE *file,
286 enum xkb_keymap_format format,
287 enum xkb_map_compile_flags flags);
290 * Creates an XKB keymap from a full text XKB keymap serialized into one
294 xkb_map_new_from_string(struct xkb_context *context, const char *string,
295 enum xkb_keymap_format format,
296 enum xkb_map_compile_flags flags);
299 * Returns the compiled XKB map as a string which can later be fed back into
300 * xkb_map_new_from_string to return the exact same keymap.
303 xkb_map_get_as_string(struct xkb_keymap *keymap);
306 * Takes a new reference on a keymap.
309 xkb_map_ref(struct xkb_keymap *keymap);
312 * Releases a reference on a keymap.
315 xkb_map_unref(struct xkb_keymap *keymap);
320 * @defgroup components XKB state components
321 * Allows enumeration of state components such as modifiers and groups within
322 * the current keymap.
328 * Returns the number of modifiers active in the keymap.
331 xkb_map_num_mods(struct xkb_keymap *keymap);
334 * Returns the name of the modifier specified by 'idx', or NULL if invalid.
337 xkb_map_mod_get_name(struct xkb_keymap *keymap, xkb_mod_index_t idx);
340 * Returns the index of the modifier specified by 'name', or XKB_MOD_INVALID.
343 xkb_map_mod_get_index(struct xkb_keymap *keymap, const char *name);
346 * Returns the number of groups active in the keymap.
349 xkb_map_num_groups(struct xkb_keymap *keymap);
352 * Returns the name of the group specified by 'idx', or NULL if invalid.
355 xkb_map_group_get_name(struct xkb_keymap *keymap, xkb_group_index_t idx);
358 * Returns the index of the group specified by 'name', or XKB_GROUP_INVALID.
361 xkb_map_group_get_index(struct xkb_keymap *keymap, const char *name);
364 * Returns the number of groups active for the specified key.
367 xkb_key_num_groups(struct xkb_keymap *keymap, xkb_keycode_t key);
370 * Returns 1 if the key should repeat, or 0 otherwise.
373 xkb_key_repeats(struct xkb_keymap *keymap, xkb_keycode_t key);
376 * Returns the number of LEDs in the given map.
379 xkb_map_num_leds(struct xkb_keymap *keymap);
382 * Returns the name of the LED specified by 'idx', or NULL if invalid.
385 xkb_map_led_get_name(struct xkb_keymap *keymap, xkb_led_index_t idx);
388 * Returns the index of the LED specified by 'name', or XKB_LED_INVALID.
391 xkb_map_led_get_index(struct xkb_keymap *keymap, const char *name);
396 * @defgroup state XKB state objects
397 * Creation, destruction and manipulation of keyboard state objects,
398 * representing modifier and group state.
404 * Returns a new XKB state object for use with the given keymap, or NULL on
408 xkb_state_new(struct xkb_keymap *keymap);
411 * Takes a new reference on a state object.
414 xkb_state_ref(struct xkb_state *state);
417 * Unrefs and potentially deallocates a state object; the caller must not
418 * use the state object after calling this.
421 xkb_state_unref(struct xkb_state *state);
424 * Get the keymap from which the state object was created. Does not take
425 * a new reference on the map; you must explicitly reference it yourself
426 * if you plan to use it beyond the lifetime of the state.
429 xkb_state_get_map(struct xkb_state *state);
431 enum xkb_key_direction {
437 * Updates a state object to reflect the given key being pressed or released.
440 xkb_state_update_key(struct xkb_state *state, xkb_keycode_t key,
441 enum xkb_key_direction direction);
444 * Gives the symbols obtained from pressing a particular key with the given
445 * state. *syms_out will be set to point to an array of keysyms, with the
446 * return value being the number of symbols in *syms_out. If the return
447 * value is 0, *syms_out will be set to NULL, as there are no symbols produced
450 * This should be called before xkb_state_update_key.
453 xkb_key_get_syms(struct xkb_state *state, xkb_keycode_t key,
454 const xkb_keysym_t **syms_out);
457 * Modifier and group types for state objects. This enum is bitmaskable,
458 * e.g. (XKB_STATE_DEPRESSED | XKB_STATE_LATCHED) is valid to exclude
461 enum xkb_state_component {
462 /** A key holding this modifier or group is currently physically
463 * depressed; also known as 'base'. */
464 XKB_STATE_DEPRESSED = (1 << 0),
465 /** Modifier or group is latched, i.e. will be unset after the next
466 * non-modifier key press. */
467 XKB_STATE_LATCHED = (1 << 1),
468 /** Modifier or group is locked, i.e. will be unset after the key
469 * provoking the lock has been pressed again. */
470 XKB_STATE_LOCKED = (1 << 2),
471 /** Combinatination of depressed, latched, and locked. */
472 XKB_STATE_EFFECTIVE =
473 (XKB_STATE_DEPRESSED | XKB_STATE_LATCHED | XKB_STATE_LOCKED),
477 * Match flags for xkb_state_mod_indices_are_active and
478 * xkb_state_mod_names_are_active, specifying how the conditions for a
479 * successful match. XKB_STATE_MATCH_NON_EXCLUSIVE is bitmaskable with
482 enum xkb_state_match {
483 /** Returns true if any of the modifiers are active. */
484 XKB_STATE_MATCH_ANY = (1 << 0),
485 /** Returns true if all of the modifiers are active. */
486 XKB_STATE_MATCH_ALL = (1 << 1),
487 /** Makes matching non-exclusive, i.e. will not return false if a
488 * modifier not specified in the arguments is active. */
489 XKB_STATE_MATCH_NON_EXCLUSIVE = (1 << 16),
493 * Updates a state object from a set of explicit masks. This entrypoint is
494 * really only for window systems and the like, where a master process
495 * holds an xkb_state, then serializes it over a wire protocol, and clients
496 * then use the serialization to feed in to their own xkb_state.
498 * All parameters must always be passed, or the resulting state may be
501 * The serialization is lossy and will not survive round trips; it must only
502 * be used to feed slave state objects, and must not be used to update the
505 * Please do not use this unless you fit the description above.
508 xkb_state_update_mask(struct xkb_state *state, xkb_mod_mask_t base_mods,
509 xkb_mod_mask_t latched_mods, xkb_mod_mask_t locked_mods,
510 xkb_group_index_t base_group,
511 xkb_group_index_t latched_group,
512 xkb_group_index_t locked_group);
515 * The counterpart to xkb_state_update_mask, to be used on the server side
516 * of serialization. Returns a xkb_mod_mask_t representing the given
517 * component(s) of the state.
519 * This function should not be used in regular clients; please use the
520 * xkb_state_mod_*_is_active or xkb_state_foreach_active_mod API instead.
522 * Can return NULL on failure.
525 xkb_state_serialize_mods(struct xkb_state *state,
526 enum xkb_state_component component);
529 * The group equivalent of xkb_state_serialize_mods: please see its
533 xkb_state_serialize_group(struct xkb_state *state,
534 enum xkb_state_component component);
537 * Returns 1 if the modifier specified by 'name' is active in the manner
538 * specified by 'type', 0 if it is unset, or -1 if the modifier does not
542 xkb_state_mod_name_is_active(struct xkb_state *state, const char *name,
543 enum xkb_state_component type);
546 * Returns 1 if the modifiers specified by the varargs (treated as
547 * NULL-terminated pointers to strings) are active in the manner
548 * specified by 'match', 0 otherwise, or -1 if any of the modifiers
549 * do not exist in the map.
552 xkb_state_mod_names_are_active(struct xkb_state *state,
553 enum xkb_state_component type,
554 enum xkb_state_match match,
558 * Returns 1 if the modifier specified by 'idx' is active in the manner
559 * specified by 'type', 0 if it is unset, or -1 if the modifier does not
560 * exist in the current map.
563 xkb_state_mod_index_is_active(struct xkb_state *state, xkb_mod_index_t idx,
564 enum xkb_state_component type);
567 * Returns 1 if the modifiers specified by the varargs (treated as
568 * xkb_mod_index_t, terminated with XKB_MOD_INVALID) are active in the manner
569 * specified by 'match' and 'type', 0 otherwise, or -1 if the modifier does not
570 * exist in the current map.
573 xkb_state_mod_indices_are_active(struct xkb_state *state,
574 enum xkb_state_component type,
575 enum xkb_state_match match,
579 * Returns 1 if the group specified by 'name' is active in the manner
580 * specified by 'type', 0 if it is unset, or -1 if the group does not
581 * exist in the current map.
584 xkb_state_group_name_is_active(struct xkb_state *state, const char *name,
585 enum xkb_state_component type);
588 * Returns 1 if the group specified by 'idx' is active in the manner
589 * specified by 'type', 0 if it is unset, or -1 if the group does not
590 * exist in the current map.
593 xkb_state_group_index_is_active(struct xkb_state *state,
594 xkb_group_index_t idx,
595 enum xkb_state_component type);
598 * Returns 1 if the LED specified by 'name' is active, 0 if it is unset, or
599 * -1 if the LED does not exist in the current map.
602 xkb_state_led_name_is_active(struct xkb_state *state, const char *name);
605 * Returns 1 if the LED specified by 'idx' is active, 0 if it is unset, or
606 * -1 if the LED does not exist in the current map.
609 xkb_state_led_index_is_active(struct xkb_state *state, xkb_led_index_t idx);
617 #endif /* _XKBCOMMON_H_ */