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 © 2009-2012 Daniel Stone
56 * Copyright © 2012 Intel Corporation
58 * Permission is hereby granted, free of charge, to any person obtaining a
59 * copy of this software and associated documentation files (the "Software"),
60 * to deal in the Software without restriction, including without limitation
61 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
62 * and/or sell copies of the Software, and to permit persons to whom the
63 * Software is furnished to do so, subject to the following conditions:
65 * The above copyright notice and this permission notice (including the next
66 * paragraph) shall be included in all copies or substantial portions of the
69 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
70 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
71 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
72 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
73 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
74 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
75 * DEALINGS IN THE SOFTWARE.
77 * Author: Daniel Stone <daniel@fooishbar.org>
87 #include <xkbcommon/xkbcommon-names.h>
88 #include <xkbcommon/xkbcommon-keysyms.h>
90 typedef uint32_t xkb_keycode_t;
91 typedef uint32_t xkb_keysym_t;
92 typedef uint32_t xkb_mod_index_t;
93 typedef uint32_t xkb_mod_mask_t;
94 typedef uint32_t xkb_group_index_t;
95 typedef uint32_t xkb_group_mask_t;
96 typedef uint32_t xkb_led_index_t;
98 #define XKB_MOD_INVALID (0xffffffff)
99 #define XKB_GROUP_INVALID (0xffffffff)
100 #define XKB_KEYCODE_INVALID (0xffffffff)
101 #define XKB_LED_INVALID (0xffffffff)
103 #define XKB_KEYCODE_MAX (0xffffffff - 1)
104 #define xkb_keycode_is_legal_ext(kc) (kc <= XKB_KEYCODE_MAX)
105 #define xkb_keycode_is_legal_x11(kc) (kc >= 8 && kc <= 255)
108 * Names to compile a keymap with, also known as RMLVO. These names together
109 * should be the primary identifier for a keymap.
111 struct xkb_rule_names {
120 * Opaque context object; may only be created, accessed, manipulated and
121 * destroyed through the xkb_context_*() API.
126 * Opaque keymap object; may only be created, accessed, manipulated and
127 * destroyed through the xkb_state_*() API.
132 * Opaque state object; may only be created, accessed, manipulated and
133 * destroyed through the xkb_state_*() API.
142 * Returns the name for a keysym as a string; will return unknown Unicode
143 * codepoints as "Ua1b2", and other unknown keysyms as "0xabcd1234".
144 * If the buffer passed is too small, the string is truncated; a size of
145 * at least 32 bytes is recommended.
148 xkb_keysym_get_name(xkb_keysym_t ks, char *buffer, size_t size);
151 * See xkb_keysym_get_name comments: this function will accept any string
152 * from that function.
155 xkb_keysym_from_name(const char *s);
158 * Return the printable representation of the keystring in Unicode/UTF-8.
159 * The buffer passed must be at least 7 bytes long. The return value
160 * is the number of bytes written to the buffer. A return value of zero
161 * means that the keysym does not have a known printable Unicode
162 * representation, and a return value of -1 means that the buffer was too
163 * small to contain the return.
166 xkb_keysym_to_utf8(xkb_keysym_t keysym, char *buffer, size_t size);
169 * Returns the Unicode/UTF-32 representation of the provided keysym, which is
170 * also compatible with UCS-4. A return value of zero means the keysym does
171 * not have a known printable Unicode representation.
174 xkb_keysym_to_utf32(xkb_keysym_t keysym);
177 * @defgroup context XKB contexts
178 * Every keymap compilation request must have an XKB context associated with
179 * it. The context keeps around state such as the include path.
184 enum xkb_context_flags {
185 /** Create this context with an empty include path. */
186 XKB_CONTEXT_NO_DEFAULT_INCLUDES = 1,
190 * Returns a new XKB context, or NULL on failure. If successful, the caller
191 * holds a reference on the context, and must free it when finished with
192 * xkb_context_unref().
195 xkb_context_new(enum xkb_context_flags flags);
198 * Appends a new entry to the include path used for keymap compilation.
199 * Returns 1 on success, or 0 if the include path could not be added or is
203 xkb_context_include_path_append(struct xkb_context *context, const char *path);
206 * Appends the default include paths to the context's current include path.
207 * Returns 1 on success, or 0 if the primary include path could not be
211 xkb_context_include_path_append_default(struct xkb_context *context);
214 * Removes all entries from the context's include path, and inserts the
215 * default paths. Returns 1 on success, or 0 if the primary include path
216 * could not be added.
219 xkb_context_include_path_reset_defaults(struct xkb_context *context);
222 * Removes all entries from the context's include path.
225 xkb_context_include_path_clear(struct xkb_context *context);
228 * Returns the number of include paths currently active in the context.
231 xkb_context_num_include_paths(struct xkb_context *context);
234 * Returns the include path at the specified index within the context.
237 xkb_context_include_path_get(struct xkb_context *context, unsigned int index);
240 * Takes a new reference on an XKB context.
243 xkb_context_ref(struct xkb_context *context);
246 * Releases a reference on an XKB context, and possibly frees it.
249 xkb_context_unref(struct xkb_context *context);
254 * @defgroup logging Logging handling
255 * These functions allow you to manipulate how logging from this library
262 /** Log critical internal errors only */
263 XKB_LOG_LEVEL_CRITICAL = 10,
264 /** Log all errors */
265 XKB_LOG_LEVEL_ERROR = 20,
266 /** Log warnings and errors */
267 XKB_LOG_LEVEL_WARNING = 30,
268 /** Log information, warnings, and errors */
269 XKB_LOG_LEVEL_INFO = 40,
270 /** Log all the things */
271 XKB_LOG_LEVEL_DEBUG = 50,
275 * Sets the function to be called for logging messages.
276 * Passing NULL restores the default function, which logs to stderr.
279 xkb_set_log_fn(struct xkb_context *context,
280 void (*log_fn)(struct xkb_context *context,
281 enum xkb_log_level level,
282 const char *format, va_list args));
284 * Sets the current logging level. The value controls which messages
285 * are logged. The default level is XKB_LOG_LEVEL_ERROR.
287 * The environment variable XKB_LOG, if set, overrides the default value
288 * and may be specified as a level number or name.
291 xkb_set_log_level(struct xkb_context *context, enum xkb_log_level level);
294 * Returns the current logging level.
297 xkb_get_log_level(struct xkb_context *context);
300 * Sets the current logging verbosity, a value from 0 to 10.
302 * The library can generate a number of warnings which are not helpful to
303 * ordinary users of the library. The verbosity may be increased if more
304 * information is desired (e.g. when developing a keymap). Defaults to 0.
305 * The environment variable XKB_VERBOSITY, if set, overrdies the default
308 * Note that most verbose messages are of level XKB_LOG_LEVEL_WARNING
312 xkb_set_log_verbosity(struct xkb_context *ctx, int verbosity);
315 * Returns the current logging verbosity.
318 xkb_get_log_verbosity(struct xkb_context *ctx);
321 * Retrieves stored data pointer from the context. This might be useful
322 * to access from callbacks like a custom logging function.
324 * If context is NULL, returns NULL.
327 xkb_get_user_data(struct xkb_context *context);
330 * Store custom user data in the context.
333 xkb_set_user_data(struct xkb_context *context, void *user_data);
338 * @defgroup map Keymap management
339 * These utility functions allow you to create and deallocate XKB keymaps.
344 enum xkb_map_compile_flags {
345 /** Apparently you can't have empty enums. What a drag. */
346 XKB_MAP_COMPILE_PLACEHOLDER = 0,
350 * The primary keymap entry point: creates a new XKB keymap from a set of
351 * RMLVO (Rules + Model + Layout + Variant + Option) names.
353 * You should almost certainly be using this and nothing else to create
357 xkb_map_new_from_names(struct xkb_context *context,
358 const struct xkb_rule_names *names,
359 enum xkb_map_compile_flags flags);
361 enum xkb_keymap_format {
362 /** The current/classic XKB text format, as generated by xkbcomp -xkb. */
363 XKB_KEYMAP_FORMAT_TEXT_V1 = 1,
367 * Creates an XKB keymap from a full text XKB keymap passed into the
371 xkb_map_new_from_file(struct xkb_context *context, FILE *file,
372 enum xkb_keymap_format format,
373 enum xkb_map_compile_flags flags);
376 * Creates an XKB keymap from a full text XKB keymap serialized into one
380 xkb_map_new_from_string(struct xkb_context *context, const char *string,
381 enum xkb_keymap_format format,
382 enum xkb_map_compile_flags flags);
385 * Returns the compiled XKB map as a string which can later be fed back into
386 * xkb_map_new_from_string to return the exact same keymap.
389 xkb_map_get_as_string(struct xkb_keymap *keymap);
392 * Takes a new reference on a keymap.
395 xkb_map_ref(struct xkb_keymap *keymap);
398 * Releases a reference on a keymap.
401 xkb_map_unref(struct xkb_keymap *keymap);
406 * @defgroup components XKB state components
407 * Allows enumeration of state components such as modifiers and groups within
408 * the current keymap.
414 * Returns the number of modifiers active in the keymap.
417 xkb_map_num_mods(struct xkb_keymap *keymap);
420 * Returns the name of the modifier specified by 'idx', or NULL if invalid.
423 xkb_map_mod_get_name(struct xkb_keymap *keymap, xkb_mod_index_t idx);
426 * Returns the index of the modifier specified by 'name', or XKB_MOD_INVALID.
429 xkb_map_mod_get_index(struct xkb_keymap *keymap, const char *name);
432 * Returns the number of groups active in the keymap.
435 xkb_map_num_groups(struct xkb_keymap *keymap);
438 * Returns the name of the group specified by 'idx', or NULL if invalid.
441 xkb_map_group_get_name(struct xkb_keymap *keymap, xkb_group_index_t idx);
444 * Returns the index of the group specified by 'name', or XKB_GROUP_INVALID.
447 xkb_map_group_get_index(struct xkb_keymap *keymap, const char *name);
450 * Returns the number of groups active for the specified key.
453 xkb_key_num_groups(struct xkb_keymap *keymap, xkb_keycode_t key);
456 * Returns 1 if the key should repeat, or 0 otherwise.
459 xkb_key_repeats(struct xkb_keymap *keymap, xkb_keycode_t key);
462 * Returns the number of LEDs in the given map.
465 xkb_map_num_leds(struct xkb_keymap *keymap);
468 * Returns the name of the LED specified by 'idx', or NULL if invalid.
471 xkb_map_led_get_name(struct xkb_keymap *keymap, xkb_led_index_t idx);
474 * Returns the index of the LED specified by 'name', or XKB_LED_INVALID.
477 xkb_map_led_get_index(struct xkb_keymap *keymap, const char *name);
482 * @defgroup state XKB state objects
483 * Creation, destruction and manipulation of keyboard state objects,
484 * representing modifier and group state.
490 * Returns a new XKB state object for use with the given keymap, or NULL on
494 xkb_state_new(struct xkb_keymap *keymap);
497 * Takes a new reference on a state object.
500 xkb_state_ref(struct xkb_state *state);
503 * Unrefs and potentially deallocates a state object; the caller must not
504 * use the state object after calling this.
507 xkb_state_unref(struct xkb_state *state);
510 * Get the keymap from which the state object was created. Does not take
511 * a new reference on the map; you must explicitly reference it yourself
512 * if you plan to use it beyond the lifetime of the state.
515 xkb_state_get_map(struct xkb_state *state);
517 enum xkb_key_direction {
523 * Updates a state object to reflect the given key being pressed or released.
526 xkb_state_update_key(struct xkb_state *state, xkb_keycode_t key,
527 enum xkb_key_direction direction);
530 * Gives the symbols obtained from pressing a particular key with the given
531 * state. *syms_out will be set to point to an array of keysyms, with the
532 * return value being the number of symbols in *syms_out. If the return
533 * value is 0, *syms_out will be set to NULL, as there are no symbols produced
536 * This should be called before xkb_state_update_key.
539 xkb_key_get_syms(struct xkb_state *state, xkb_keycode_t key,
540 const xkb_keysym_t **syms_out);
543 * Modifier and group types for state objects. This enum is bitmaskable,
544 * e.g. (XKB_STATE_DEPRESSED | XKB_STATE_LATCHED) is valid to exclude
547 enum xkb_state_component {
548 /** A key holding this modifier or group is currently physically
549 * depressed; also known as 'base'. */
550 XKB_STATE_DEPRESSED = (1 << 0),
551 /** Modifier or group is latched, i.e. will be unset after the next
552 * non-modifier key press. */
553 XKB_STATE_LATCHED = (1 << 1),
554 /** Modifier or group is locked, i.e. will be unset after the key
555 * provoking the lock has been pressed again. */
556 XKB_STATE_LOCKED = (1 << 2),
557 /** Combinatination of depressed, latched, and locked. */
558 XKB_STATE_EFFECTIVE =
559 (XKB_STATE_DEPRESSED | XKB_STATE_LATCHED | XKB_STATE_LOCKED),
563 * Match flags for xkb_state_mod_indices_are_active and
564 * xkb_state_mod_names_are_active, specifying how the conditions for a
565 * successful match. XKB_STATE_MATCH_NON_EXCLUSIVE is bitmaskable with
568 enum xkb_state_match {
569 /** Returns true if any of the modifiers are active. */
570 XKB_STATE_MATCH_ANY = (1 << 0),
571 /** Returns true if all of the modifiers are active. */
572 XKB_STATE_MATCH_ALL = (1 << 1),
573 /** Makes matching non-exclusive, i.e. will not return false if a
574 * modifier not specified in the arguments is active. */
575 XKB_STATE_MATCH_NON_EXCLUSIVE = (1 << 16),
579 * Updates a state object from a set of explicit masks. This entrypoint is
580 * really only for window systems and the like, where a master process
581 * holds an xkb_state, then serializes it over a wire protocol, and clients
582 * then use the serialization to feed in to their own xkb_state.
584 * All parameters must always be passed, or the resulting state may be
587 * The serialization is lossy and will not survive round trips; it must only
588 * be used to feed slave state objects, and must not be used to update the
591 * Please do not use this unless you fit the description above.
594 xkb_state_update_mask(struct xkb_state *state, xkb_mod_mask_t base_mods,
595 xkb_mod_mask_t latched_mods, xkb_mod_mask_t locked_mods,
596 xkb_group_index_t base_group,
597 xkb_group_index_t latched_group,
598 xkb_group_index_t locked_group);
601 * The counterpart to xkb_state_update_mask, to be used on the server side
602 * of serialization. Returns a xkb_mod_mask_t representing the given
603 * component(s) of the state.
605 * This function should not be used in regular clients; please use the
606 * xkb_state_mod_*_is_active or xkb_state_foreach_active_mod API instead.
608 * Can return NULL on failure.
611 xkb_state_serialize_mods(struct xkb_state *state,
612 enum xkb_state_component component);
615 * The group equivalent of xkb_state_serialize_mods: please see its
619 xkb_state_serialize_group(struct xkb_state *state,
620 enum xkb_state_component component);
623 * Returns 1 if the modifier specified by 'name' is active in the manner
624 * specified by 'type', 0 if it is unset, or -1 if the modifier does not
628 xkb_state_mod_name_is_active(struct xkb_state *state, const char *name,
629 enum xkb_state_component type);
632 * Returns 1 if the modifiers specified by the varargs (NULL-terminated
633 * strings, with a NULL sentinel) are active in the manner specified by
634 * 'match', 0 otherwise, or -1 if any of the modifiers do not exist in
638 xkb_state_mod_names_are_active(struct xkb_state *state,
639 enum xkb_state_component type,
640 enum xkb_state_match match,
644 * Returns 1 if the modifier specified by 'idx' is active in the manner
645 * specified by 'type', 0 if it is unset, or -1 if the modifier does not
646 * exist in the current map.
649 xkb_state_mod_index_is_active(struct xkb_state *state, xkb_mod_index_t idx,
650 enum xkb_state_component type);
653 * Returns 1 if the modifiers specified by the varargs (of type
654 * xkb_mod_index_t, with a XKB_MOD_INVALID sentinel) are active in the
655 * manner specified by 'match' and 'type', 0 otherwise, or -1 if any of
656 * the modifiers do not exist in the map.
659 xkb_state_mod_indices_are_active(struct xkb_state *state,
660 enum xkb_state_component type,
661 enum xkb_state_match match,
665 * Returns 1 if the modifier specified by 'idx' is used in the
666 * translation of the keycode 'key' to the key symbols obtained by
667 * pressing it (as in xkb_key_get_syms), given the current state.
668 * Returns 0 otherwise.
671 xkb_key_mod_index_is_consumed(struct xkb_state *state, xkb_keycode_t key,
672 xkb_mod_index_t idx);
675 * Takes the given modifier mask, and removes all modifiers which are
676 * marked as 'consumed' (see xkb_key_mod_index_is_consumed definition)
677 * for that particular key.
680 xkb_key_mod_mask_remove_consumed(struct xkb_state *state, xkb_keycode_t key,
681 xkb_mod_mask_t mask);
684 * Returns 1 if the group specified by 'name' is active in the manner
685 * specified by 'type', 0 if it is unset, or -1 if the group does not
686 * exist in the current map.
689 xkb_state_group_name_is_active(struct xkb_state *state, const char *name,
690 enum xkb_state_component type);
693 * Returns 1 if the group specified by 'idx' is active in the manner
694 * specified by 'type', 0 if it is unset, or -1 if the group does not
695 * exist in the current map.
698 xkb_state_group_index_is_active(struct xkb_state *state,
699 xkb_group_index_t idx,
700 enum xkb_state_component type);
703 * Returns 1 if the LED specified by 'name' is active, 0 if it is unset, or
704 * -1 if the LED does not exist in the current map.
707 xkb_state_led_name_is_active(struct xkb_state *state, const char *name);
710 * Returns 1 if the LED specified by 'idx' is active, 0 if it is unset, or
711 * -1 if the LED does not exist in the current map.
714 xkb_state_led_index_is_active(struct xkb_state *state, xkb_led_index_t idx);
718 /* Leave this include last, so it can pick up our types, etc. */
719 #include <xkbcommon/xkbcommon-compat.h>
725 #endif /* _XKBCOMMON_H_ */