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,
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10 * Software is furnished to do so, subject to the following conditions:
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13 * all copies or substantial portions of the Software.
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16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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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.
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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.
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46 * GRAPHICS BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL
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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>
96 * @brief Main libxkbcommon API.
100 * @struct xkb_context
101 * @brief Opaque top level library context object.
103 * The context contains various general library data and state, like
104 * logging level and include paths.
105 * Objects are created in a specific context, and multiple contexts may
106 * coexist simultaneously. Objects from different contexts are completely
107 * separated and do not share any memory or state.
108 * A context is created, accessed, manipulated and destroyed through the
109 * xkb_context_*() API.
115 * @brief Opaque compiled XKB keymap object.
117 * The keymap object holds all of the static keyboard information obtained
118 * from compiling XKB files.
119 * A keymap is immutable after it is created (besides reference counts, etc.);
120 * if you need to change it, you must create a new one.
121 * A keymap object is created, accessed and destroyed through the
122 * xkb_keymap_*() API.
128 * @brief Opaque XKB keyboard state object.
130 * State objects contain the active state of a keyboard (or keyboards), such
131 * as the currently effective layout and the active modifiers. It acts as a
132 * simple state machine, wherein key presses and releases are the input, and
133 * key symbols (keysyms) are the output.
134 * A state object is created, accessed, manipulated and destroyed through the
139 typedef uint32_t xkb_keycode_t;
140 typedef uint32_t xkb_keysym_t;
141 typedef uint32_t xkb_mod_index_t;
142 typedef uint32_t xkb_mod_mask_t;
143 typedef uint32_t xkb_layout_index_t;
144 typedef uint32_t xkb_layout_mask_t;
145 typedef uint32_t xkb_level_index_t;
146 typedef uint32_t xkb_led_index_t;
147 typedef uint32_t xkb_led_mask_t;
149 #define XKB_MOD_INVALID (0xffffffff)
150 #define XKB_LAYOUT_INVALID (0xffffffff)
151 #define XKB_KEYCODE_INVALID (0xffffffff)
152 #define XKB_LEVEL_INVALID (0xffffffff)
153 #define XKB_LED_INVALID (0xffffffff)
155 #define XKB_KEYCODE_MAX (0xffffffff - 1)
156 #define xkb_keycode_is_legal_ext(kc) (kc <= XKB_KEYCODE_MAX)
157 #define xkb_keycode_is_legal_x11(kc) (kc >= 8 && kc <= 255)
160 * @brief Names to compile a keymap with, also known as RMLVO.
162 * These names together are the primary identifier for a keymap.
163 * If any of the members is NULL or an empty string (""), a default value is
166 struct xkb_rule_names {
167 /** The rules file to use. The rules file describes how to interpret
168 * the values of the model, layout, variant and options fields. */
170 /** The keyboard model by which to interpret keycodes and LEDs. */
172 /** A comma seperated list of layouts (languages) to include in the
175 /** A comma seperated list of variants, one per layout, which may
176 * modify or augment the respective layout in various ways. */
178 /** A comma seprated list of options, through which the user specifies
179 * non-layout related preferences, like which key combinations are used
180 * for switching layouts, or which key is the Compose key. */
185 * @defgroup keysyms Keysyms
186 * @brief Utility functions related to keysyms.
192 * @brief Get the name of a keysym.
194 * @param[in] keysym The keysym.
195 * @param[out] buffer A string buffer to write the name into.
196 * @param[in] size Size of the buffer.
198 * @remark Named keysyms are found in the xkbcommon/xkbcommon-keysyms.h
199 * header file. Their name does not include the XKB_KEY_ prefix.
200 * The name of Unicode keysyms is "U<codepoint>", e.g. "Ua1b2".
201 * The name of other unnamed keysyms is the hexadecimal representation of
202 * their value, e.g. "0xabcd1234".
203 * An invalid keysym is returned as "Invalid".
205 * @warning If the buffer passed is too small, the string is truncated
206 * (though still NUL-terminated); a size of at least 32 bytes is recommended.
209 xkb_keysym_get_name(xkb_keysym_t keysym, char *buffer, size_t size);
212 * @brief Get a keysym from its name.
214 * @param name The name of a keysym. See remarks in
215 * xkb_keysym_get_name(); this function will accept any name returned by that
218 * @remark The lookup is case-sensitive.
220 * @returns The keysym, if name is valid. Otherwise, XKB_KEY_NoSymbol is
224 xkb_keysym_from_name(const char *name);
227 * @brief Get the Unicode/UTF-8 representation of a keysym.
229 * @param[in] keysym The keysym.
230 * @param[out] buffer A buffer to write the UTF-8 string into.
231 * @param[in] size The size of buffer. Must be at least 7.
233 * @returns The number of bytes written to the buffer. A return value of
234 * 0 means that the keysym does not have a known printable Unicode
235 * representation. A return value of -1 means that the buffer was too small.
238 xkb_keysym_to_utf8(xkb_keysym_t keysym, char *buffer, size_t size);
241 * @brief Get the Unicode/UTF-32 representation of a keysym.
243 * @param keysym The keysym.
245 * @returns The Unicode/UTF-32 representation of keysym, which is also
246 * compatible with UCS-4. A return value of 0 means the keysym does not
247 * have a known printable Unicode representation.
250 xkb_keysym_to_utf32(xkb_keysym_t keysym);
255 * @defgroup context Library Context
256 * @brief Creating, destroying and using library contexts.
258 * Every keymap compilation request must have a context associated with
259 * it. The context keeps around state such as the include path.
264 /** @brief Flags for context creation. */
265 enum xkb_context_flags {
266 /** Create this context with an empty include path. */
267 XKB_CONTEXT_NO_DEFAULT_INCLUDES = (1 << 0),
271 * @brief Create a new context.
273 * @param flags Optional flags for the context, or 0.
275 * @returns A new context, or NULL on failure.
277 * @remark If successful, the caller holds a reference on the context, and
278 * must call xkb_context_unref() when finished.
280 * @remark The user may set some environment variables to affect default
281 * values in the context. See e.g. xkb_context_set_log_level() and
282 * xkb_context_set_log_verbosity().
285 xkb_context_new(enum xkb_context_flags flags);
288 * @brief Take a new reference on a context.
289 * @param context The context to reference.
290 * @returns The passed in context.
293 xkb_context_ref(struct xkb_context *context);
296 * @brief Release a reference on a context, and possibly free it.
297 * @param context The context to unreference.
300 xkb_context_unref(struct xkb_context *context);
303 * @brief Append a new entry to the context's include path.
304 * @returns 1 on success, or 0 if the include path could not be added or is
308 xkb_context_include_path_append(struct xkb_context *context, const char *path);
311 * @brief Append the default include paths to the context's include path.
312 * @returns 1 on success, or 0 if the primary include path could not be added.
315 xkb_context_include_path_append_default(struct xkb_context *context);
318 * @brief Reset the context's include path to the default.
320 * Removes all entries from the context's include path, and inserts the
323 * @returns 1 on success, or 0 if the primary include path could not be added.
326 xkb_context_include_path_reset_defaults(struct xkb_context *context);
329 * @brief Remove all entries from the context's include path.
332 xkb_context_include_path_clear(struct xkb_context *context);
335 * @brief Get the number of paths in the context's include path.
336 * @returns The number of paths in the context's include path.
339 xkb_context_num_include_paths(struct xkb_context *context);
342 * @brief Get a specific include path from the context's include path.
343 * @returns The include path at the specified index within the context, or
344 * NULL if the index is invalid.
347 xkb_context_include_path_get(struct xkb_context *context, unsigned int index);
350 * @brief Store custom user data in the context.
352 * This may be useful in conjuction with xkb_context_set_log_fn() or other
356 xkb_context_set_user_data(struct xkb_context *context, void *user_data);
359 * @brief Retrieves stored user data from the context.
361 * @returns The stored user data. If the user data wasn't set, or the
362 * passed in context is NULL, returns NULL.
364 * This may be useful to access private user data from callbacks like a
365 * custom logging function.
368 xkb_context_get_user_data(struct xkb_context *context);
373 * @defgroup logging Logging Handling
374 * @brief Manipulating how logging from this library is handled.
379 /** @brief Specifies a logging level. */
381 XKB_LOG_LEVEL_CRITICAL = 10, /**< Log critical internal errors only. */
382 XKB_LOG_LEVEL_ERROR = 20, /**< Log all errors. */
383 XKB_LOG_LEVEL_WARNING = 30, /**< Log warnings and errors. */
384 XKB_LOG_LEVEL_INFO = 40, /**< Log information, warnings, and errors. */
385 XKB_LOG_LEVEL_DEBUG = 50, /**< Log everything. */
389 * @brief Set the current logging level.
391 * @param context The context in which to set the logging level.
392 * @param level The logging level to use. Only messages from this level
393 * and below will be logged.
395 * The default level is XKB_LOG_LEVEL_ERROR. The environment variable
396 * XKB_LOG, if set in the time the context was created, overrides the default
397 * value. It may be specified as a level number or name.
400 xkb_context_set_log_level(struct xkb_context *context,
401 enum xkb_log_level level);
404 * @brief Get the current logging level.
405 * @returns The current logging level.
408 xkb_context_get_log_level(struct xkb_context *context);
411 * @brief Sets the current logging verbosity.
413 * The library can generate a number of warnings which are not helpful to
414 * ordinary users of the library. The verbosity may be increased if more
415 * information is desired (e.g. when developing a new keymap).
417 * The default verbosity is 0. The environment variable XKB_VERBOSITY, if
418 * set in the time the context was created, overrdies the default value.
420 * @param context The context in which to use the set verbosity.
421 * @param verbosity The verbosity to use. Currently used values are
422 * 1 to 10, higher values being more verbose. 0 would result in no verbose
423 * messages being logged.
425 * @remark Most verbose messages are of level XKB_LOG_LEVEL_WARNING or lower.
428 xkb_context_set_log_verbosity(struct xkb_context *context, int verbosity);
431 * @brief Get the current logging verbosity of the context.
432 * @returns The current logging verbosity.
435 xkb_context_get_log_verbosity(struct xkb_context *context);
438 * @brief Set a custom function to handle logging messages.
440 * @param context The context in which to use the set logging function.
441 * @param log_fn The function that will be called for logging messages.
442 * Passing NULL restores the default function, which logs to stderr.
444 * By default, log messages from this library are printed to stderr. This
445 * function allows you to replace the default behavior with a custom
446 * handler. The handler is only called with messages which match the
447 * current logging level and verbosity settings for the context.
448 * level is the logging level of the message. format and args are the
449 * same as in the vprintf(3) function.
451 * You may use xkb_context_set_user_data() on the context, and then call
452 * xkb_context_get_user_data() from within the logging function to provide
453 * it with additional private context.
456 xkb_context_set_log_fn(struct xkb_context *context,
457 void (*log_fn)(struct xkb_context *context,
458 enum xkb_log_level level,
459 const char *format, va_list args));
464 * @defgroup keymap Keymap Creation
465 * @brief Creating and destroying XKB keymaps.
470 /** @brief Flags for keymap compilation. */
471 enum xkb_keymap_compile_flags {
472 /** Apparently you can't have empty enums. What a drag. */
473 XKB_MAP_COMPILE_PLACEHOLDER = 0,
477 * @brief Create a keymap from RMLVO names.
479 * The primary keymap entry point: creates a new XKB keymap from a set of
480 * RMLVO (Rules + Model + Layouts + Variants + Options) names.
482 * You should almost certainly be using this and nothing else to create
485 * @param context The context in which to create the keymap.
486 * @param names The RMLVO names to use.
487 * @param flags Optional flags for the keymap, or 0.
489 * @returns A keymap compiled according to the RMLVO names, or NULL if
490 * the compilation failed.
495 xkb_keymap_new_from_names(struct xkb_context *context,
496 const struct xkb_rule_names *names,
497 enum xkb_keymap_compile_flags flags);
499 /** @brief The possible keymap text formats. */
500 enum xkb_keymap_format {
501 /** The current/classic XKB text format, as generated by xkbcomp -xkb. */
502 XKB_KEYMAP_FORMAT_TEXT_V1 = 1,
506 * @brief Create a keymap from an XKB keymap file.
508 * @param context The context in which to create the keymap.
509 * @param file The XKB keymap file to compile.
510 * @param format The text format of the XKB keymap file to compile.
511 * @param flags Optional flags for the keymap, or 0.
513 * @returns A keymap compiled from the given XKB keymap file, or NULL of
514 * the compilation failed.
516 * @remark The file must contain an entire XKB keymap. For example, in the
517 * XKB_KEYMAP_FORMAT_TEXT_V1 format, this means the file must contain one
518 * top level '%xkb_keymap' section, which in turn contains other required
522 xkb_keymap_new_from_file(struct xkb_context *context, FILE *file,
523 enum xkb_keymap_format format,
524 enum xkb_keymap_compile_flags flags);
527 * @brief Create a keymap from an XKB keymap given as a string.
529 * This is just like xkb_keymap_new_from_file(), but instead of a file, gets
530 * the XKB keymap as one enormous string.
532 * @see xkb_keymap_new_from_string()
535 xkb_keymap_new_from_string(struct xkb_context *context, const char *string,
536 enum xkb_keymap_format format,
537 enum xkb_keymap_compile_flags flags);
540 * @brief Take a new reference on a keymap.
541 * @param keymap The keymap to reference.
542 * @returns The passed in keymap.
545 xkb_keymap_ref(struct xkb_keymap *keymap);
548 * @brief Release a reference on a keymap, and possibly free it.
549 * @param keymap The keymap to unreference. If the reference count reaches
550 * zero, the keymap is freed.
553 xkb_keymap_unref(struct xkb_keymap *keymap);
556 * @brief Get the compiled keymap as a string.
558 * @returns The compiled keymap as a NUL-terminated string, or NULL if
561 * The returned string may be fed back into xkb_map_new_from_string() to get
562 * the exact same keymap (possibly in another process, etc.).
564 * @remark The returned string is dynamically allocated and should be freed
568 xkb_keymap_get_as_string(struct xkb_keymap *keymap);
573 * @defgroup components XKB State Components
574 * @brief Enumeration of state components in a keymap.
580 * Returns the number of modifiers active in the keymap.
583 xkb_keymap_num_mods(struct xkb_keymap *keymap);
586 * Returns the name of the modifier specified by 'idx', or NULL if invalid.
589 xkb_keymap_mod_get_name(struct xkb_keymap *keymap, xkb_mod_index_t idx);
592 * Returns the index of the modifier specified by 'name', or XKB_MOD_INVALID.
595 xkb_keymap_mod_get_index(struct xkb_keymap *keymap, const char *name);
598 * Returns the number of groups active in the keymap.
601 xkb_keymap_num_layouts(struct xkb_keymap *keymap);
604 * Returns the name of the group specified by 'idx', or NULL if invalid.
607 xkb_keymap_layout_get_name(struct xkb_keymap *keymap, xkb_layout_index_t idx);
610 * Returns the index of the layout specified by 'name', or XKB_LAYOUT_INVALID.
613 xkb_keymap_layout_get_index(struct xkb_keymap *keymap, const char *name);
616 * Returns the number of layouts active for the specified key.
619 xkb_keymap_num_layouts_for_key(struct xkb_keymap *keymap, xkb_keycode_t key);
622 * Returns the number of levels active for the specified key and layout.
625 xkb_keymap_num_levels_for_key(struct xkb_keymap *keymap, xkb_keycode_t key,
626 xkb_layout_index_t layout);
629 * Returns the number of LEDs in the given map.
632 xkb_keymap_num_leds(struct xkb_keymap *keymap);
635 * Returns the name of the LED specified by 'idx', or NULL if invalid.
638 xkb_keymap_led_get_name(struct xkb_keymap *keymap, xkb_led_index_t idx);
641 * Returns the index of the LED specified by 'name', or XKB_LED_INVALID.
644 xkb_keymap_led_get_index(struct xkb_keymap *keymap, const char *name);
647 * Returns 1 if the key should repeat, or 0 otherwise.
650 xkb_keymap_key_repeats(struct xkb_keymap *keymap, xkb_keycode_t key);
655 * @defgroup state XKB State Objects
656 * @brief Creating, destroying and manipulating keyboard state objects.
662 * Returns a new XKB state object for use with the given keymap, or NULL on
666 xkb_state_new(struct xkb_keymap *keymap);
669 * Takes a new reference on a state object.
672 xkb_state_ref(struct xkb_state *state);
675 * Unrefs and potentially deallocates a state object; the caller must not
676 * use the state object after calling this.
679 xkb_state_unref(struct xkb_state *state);
682 * Get the keymap from which the state object was created. Does not take
683 * a new reference on the map; you must explicitly reference it yourself
684 * if you plan to use it beyond the lifetime of the state.
687 xkb_state_get_keymap(struct xkb_state *state);
689 /** @brief Specifies the direction of the key (press / release). */
690 enum xkb_key_direction {
691 XKB_KEY_UP, /**< The key was released. */
692 XKB_KEY_DOWN, /**< The key was pressed. */
696 * Updates a state object to reflect the given key being pressed or released.
699 xkb_state_update_key(struct xkb_state *state, xkb_keycode_t key,
700 enum xkb_key_direction direction);
703 * Gives the symbols obtained from pressing a particular key with the given
704 * state. *syms_out will be set to point to an array of keysyms, with the
705 * return value being the number of symbols in *syms_out. If the return
706 * value is 0, *syms_out will be set to NULL, as there are no symbols produced
710 xkb_state_key_get_syms(struct xkb_state *state, xkb_keycode_t key,
711 const xkb_keysym_t **syms_out);
714 * Returns the layout number that would be active for a particular key with
718 xkb_state_key_get_layout(struct xkb_state *state, xkb_keycode_t key);
721 * Returns the level number that would be active for a particular key with
722 * the given state and layout number, usually obtained from
723 * xkb_state_key_get_layout.
726 xkb_state_key_get_level(struct xkb_state *state, xkb_keycode_t key,
727 xkb_layout_index_t layout);
730 * Gives the symbols obtained from pressing a particular key with the given
731 * layout and level. *syms_out will be set to point to an array of keysyms,
732 * with the return value being the number of symbols in *syms_out. If the
733 * return value is 0, *syms_out will be set to NULL, as there are no symbols
734 * produced by this event.
737 xkb_keymap_key_get_syms_by_level(struct xkb_keymap *keymap,
739 xkb_layout_index_t layout,
740 xkb_level_index_t level,
741 const xkb_keysym_t **syms_out);
744 * Modifier and group types for state objects. This enum is bitmaskable,
745 * e.g. (XKB_STATE_DEPRESSED | XKB_STATE_LATCHED) is valid to exclude
748 enum xkb_state_component {
749 /** A key holding this modifier or group is currently physically
750 * depressed; also known as 'base'. */
751 XKB_STATE_DEPRESSED = (1 << 0),
752 /** Modifier or group is latched, i.e. will be unset after the next
753 * non-modifier key press. */
754 XKB_STATE_LATCHED = (1 << 1),
755 /** Modifier or group is locked, i.e. will be unset after the key
756 * provoking the lock has been pressed again. */
757 XKB_STATE_LOCKED = (1 << 2),
758 /** Combinatination of depressed, latched, and locked. */
759 XKB_STATE_EFFECTIVE =
760 (XKB_STATE_DEPRESSED | XKB_STATE_LATCHED | XKB_STATE_LOCKED),
764 * Match flags for xkb_state_mod_indices_are_active and
765 * xkb_state_mod_names_are_active, specifying how the conditions for a
766 * successful match. XKB_STATE_MATCH_NON_EXCLUSIVE is bitmaskable with
769 enum xkb_state_match {
770 /** Returns true if any of the modifiers are active. */
771 XKB_STATE_MATCH_ANY = (1 << 0),
772 /** Returns true if all of the modifiers are active. */
773 XKB_STATE_MATCH_ALL = (1 << 1),
774 /** Makes matching non-exclusive, i.e. will not return false if a
775 * modifier not specified in the arguments is active. */
776 XKB_STATE_MATCH_NON_EXCLUSIVE = (1 << 16),
780 * Updates a state object from a set of explicit masks. This entrypoint is
781 * really only for window systems and the like, where a master process
782 * holds an xkb_state, then serializes it over a wire protocol, and clients
783 * then use the serialization to feed in to their own xkb_state.
785 * All parameters must always be passed, or the resulting state may be
788 * The serialization is lossy and will not survive round trips; it must only
789 * be used to feed slave state objects, and must not be used to update the
792 * Please do not use this unless you fit the description above.
795 xkb_state_update_mask(struct xkb_state *state, xkb_mod_mask_t base_mods,
796 xkb_mod_mask_t latched_mods, xkb_mod_mask_t locked_mods,
797 xkb_layout_index_t base_group,
798 xkb_layout_index_t latched_group,
799 xkb_layout_index_t locked_group);
802 * The counterpart to xkb_state_update_mask, to be used on the server side
803 * of serialization. Returns a xkb_mod_mask_t representing the given
804 * component(s) of the state.
806 * This function should not be used in regular clients; please use the
807 * xkb_state_mod_*_is_active or xkb_state_foreach_active_mod API instead.
809 * Can return NULL on failure.
812 xkb_state_serialize_mods(struct xkb_state *state,
813 enum xkb_state_component component);
816 * The group equivalent of xkb_state_serialize_mods: please see its
820 xkb_state_serialize_layout(struct xkb_state *state,
821 enum xkb_state_component component);
824 * Returns 1 if the modifier specified by 'name' is active in the manner
825 * specified by 'type', 0 if it is unset, or -1 if the modifier does not
829 xkb_state_mod_name_is_active(struct xkb_state *state, const char *name,
830 enum xkb_state_component type);
833 * Returns 1 if the modifiers specified by the varargs (NULL-terminated
834 * strings, with a NULL sentinel) are active in the manner specified by
835 * 'match', 0 otherwise, or -1 if any of the modifiers do not exist in
839 xkb_state_mod_names_are_active(struct xkb_state *state,
840 enum xkb_state_component type,
841 enum xkb_state_match match,
845 * Returns 1 if the modifier specified by 'idx' is active in the manner
846 * specified by 'type', 0 if it is unset, or -1 if the modifier does not
847 * exist in the current map.
850 xkb_state_mod_index_is_active(struct xkb_state *state, xkb_mod_index_t idx,
851 enum xkb_state_component type);
854 * Returns 1 if the modifiers specified by the varargs (of type
855 * xkb_mod_index_t, with a XKB_MOD_INVALID sentinel) are active in the
856 * manner specified by 'match' and 'type', 0 otherwise, or -1 if any of
857 * the modifiers do not exist in the map.
860 xkb_state_mod_indices_are_active(struct xkb_state *state,
861 enum xkb_state_component type,
862 enum xkb_state_match match,
866 * Returns 1 if the modifier specified by 'idx' is used in the
867 * translation of the keycode 'key' to the key symbols obtained by
868 * pressing it (as in xkb_key_get_syms), given the current state.
869 * Returns 0 otherwise.
872 xkb_state_mod_index_is_consumed(struct xkb_state *state, xkb_keycode_t key,
873 xkb_mod_index_t idx);
876 * Takes the given modifier mask, and removes all modifiers which are
877 * marked as 'consumed' (see xkb_key_mod_index_is_consumed definition)
878 * for that particular key.
881 xkb_state_mod_mask_remove_consumed(struct xkb_state *state, xkb_keycode_t key,
882 xkb_mod_mask_t mask);
885 * Returns 1 if the group specified by 'name' is active in the manner
886 * specified by 'type', 0 if it is unset, or -1 if the group does not
887 * exist in the current map.
890 xkb_state_layout_name_is_active(struct xkb_state *state, const char *name,
891 enum xkb_state_component type);
894 * Returns 1 if the group specified by 'idx' is active in the manner
895 * specified by 'type', 0 if it is unset, or -1 if the group does not
896 * exist in the current map.
899 xkb_state_layout_index_is_active(struct xkb_state *state,
900 xkb_layout_index_t idx,
901 enum xkb_state_component type);
904 * Returns 1 if the LED specified by 'name' is active, 0 if it is unset, or
905 * -1 if the LED does not exist in the current map.
908 xkb_state_led_name_is_active(struct xkb_state *state, const char *name);
911 * Returns 1 if the LED specified by 'idx' is active, 0 if it is unset, or
912 * -1 if the LED does not exist in the current map.
915 xkb_state_led_index_is_active(struct xkb_state *state, xkb_led_index_t idx);
919 /* Leave this include last, so it can pick up our types, etc. */
920 #include <xkbcommon/xkbcommon-compat.h>
926 #endif /* _XKBCOMMON_H_ */