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
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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>
96 * Main libxkbcommon API.
100 * @struct xkb_context
101 * 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 * 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 * 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 * 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 * Utility functions related to keysyms.
192 * 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.
208 * @returns The number of bytes in the name, excluding the NUL byte, if
209 * keysym is valid. Otherwise, -1 is returned.
211 * @remark You may check if truncation has occured by comparing the return
212 * value with the length of buffer, similarly to the snprintf(3) function.
215 xkb_keysym_get_name(xkb_keysym_t keysym, char *buffer, size_t size);
218 * Get a keysym from its name.
220 * @param name The name of a keysym. See remarks in
221 * xkb_keysym_get_name(); this function will accept any name returned by that
224 * @remark The lookup is case-sensitive.
226 * @returns The keysym, if name is valid. Otherwise, XKB_KEY_NoSymbol is
230 xkb_keysym_from_name(const char *name);
233 * Get the Unicode/UTF-8 representation of a keysym.
235 * @param[in] keysym The keysym.
236 * @param[out] buffer A buffer to write the UTF-8 string into.
237 * @param[in] size The size of buffer. Must be at least 7.
239 * @returns The number of bytes written to the buffer. A return value of
240 * 0 means that the keysym does not have a known printable Unicode
241 * representation. A return value of -1 means that the buffer was too small.
244 xkb_keysym_to_utf8(xkb_keysym_t keysym, char *buffer, size_t size);
247 * Get the Unicode/UTF-32 representation of a keysym.
249 * @param keysym The keysym.
251 * @returns The Unicode/UTF-32 representation of keysym, which is also
252 * compatible with UCS-4. A return value of 0 means the keysym does not
253 * have a known printable Unicode representation.
256 xkb_keysym_to_utf32(xkb_keysym_t keysym);
261 * @defgroup context Library Context
262 * Creating, destroying and using library contexts.
264 * Every keymap compilation request must have a context associated with
265 * it. The context keeps around state such as the include path.
270 /** Flags for context creation. */
271 enum xkb_context_flags {
272 /** Create this context with an empty include path. */
273 XKB_CONTEXT_NO_DEFAULT_INCLUDES = (1 << 0),
277 * Create a new context.
279 * @param flags Optional flags for the context, or 0.
281 * @returns A new context, or NULL on failure.
283 * @remark If successful, the caller holds a reference on the context, and
284 * must call xkb_context_unref() when finished.
286 * @remark The user may set some environment variables to affect default
287 * values in the context. See e.g. xkb_context_set_log_level() and
288 * xkb_context_set_log_verbosity().
291 xkb_context_new(enum xkb_context_flags flags);
294 * Take a new reference on a context.
295 * @param context The context to reference.
296 * @returns The passed in context.
299 xkb_context_ref(struct xkb_context *context);
302 * Release a reference on a context, and possibly free it.
303 * @param context The context to unreference.
306 xkb_context_unref(struct xkb_context *context);
309 * Append a new entry to the context's include path.
310 * @returns 1 on success, or 0 if the include path could not be added or is
314 xkb_context_include_path_append(struct xkb_context *context, const char *path);
317 * Append the default include paths to the context's include path.
318 * @returns 1 on success, or 0 if the primary include path could not be added.
321 xkb_context_include_path_append_default(struct xkb_context *context);
324 * Reset the context's include path to the default.
326 * Removes all entries from the context's include path, and inserts the
329 * @returns 1 on success, or 0 if the primary include path could not be added.
332 xkb_context_include_path_reset_defaults(struct xkb_context *context);
335 * Remove all entries from the context's include path.
338 xkb_context_include_path_clear(struct xkb_context *context);
341 * Get the number of paths in the context's include path.
342 * @returns The number of paths in the context's include path.
345 xkb_context_num_include_paths(struct xkb_context *context);
348 * Get a specific include path from the context's include path.
349 * @returns The include path at the specified index within the context, or
350 * NULL if the index is invalid.
353 xkb_context_include_path_get(struct xkb_context *context, unsigned int index);
356 * Store custom user data in the context.
358 * This may be useful in conjuction with xkb_context_set_log_fn() or other
362 xkb_context_set_user_data(struct xkb_context *context, void *user_data);
365 * Retrieves stored user data from the context.
367 * @returns The stored user data. If the user data wasn't set, or the
368 * passed in context is NULL, returns NULL.
370 * This may be useful to access private user data from callbacks like a
371 * custom logging function.
374 xkb_context_get_user_data(struct xkb_context *context);
379 * @defgroup logging Logging Handling
380 * Manipulating how logging from this library is handled.
385 /** Specifies a logging level. */
387 XKB_LOG_LEVEL_CRITICAL = 10, /**< Log critical internal errors only. */
388 XKB_LOG_LEVEL_ERROR = 20, /**< Log all errors. */
389 XKB_LOG_LEVEL_WARNING = 30, /**< Log warnings and errors. */
390 XKB_LOG_LEVEL_INFO = 40, /**< Log information, warnings, and errors. */
391 XKB_LOG_LEVEL_DEBUG = 50, /**< Log everything. */
395 * Set the current logging level.
397 * @param context The context in which to set the logging level.
398 * @param level The logging level to use. Only messages from this level
399 * and below will be logged.
401 * The default level is XKB_LOG_LEVEL_ERROR. The environment variable
402 * XKB_LOG, if set in the time the context was created, overrides the default
403 * value. It may be specified as a level number or name.
406 xkb_context_set_log_level(struct xkb_context *context,
407 enum xkb_log_level level);
410 * Get the current logging level.
411 * @returns The current logging level.
414 xkb_context_get_log_level(struct xkb_context *context);
417 * Sets the current logging verbosity.
419 * The library can generate a number of warnings which are not helpful to
420 * ordinary users of the library. The verbosity may be increased if more
421 * information is desired (e.g. when developing a new keymap).
423 * The default verbosity is 0. The environment variable XKB_VERBOSITY, if
424 * set in the time the context was created, overrdies the default value.
426 * @param context The context in which to use the set verbosity.
427 * @param verbosity The verbosity to use. Currently used values are
428 * 1 to 10, higher values being more verbose. 0 would result in no verbose
429 * messages being logged.
431 * @remark Most verbose messages are of level XKB_LOG_LEVEL_WARNING or lower.
434 xkb_context_set_log_verbosity(struct xkb_context *context, int verbosity);
437 * Get the current logging verbosity of the context.
438 * @returns The current logging verbosity.
441 xkb_context_get_log_verbosity(struct xkb_context *context);
444 * Set a custom function to handle logging messages.
446 * @param context The context in which to use the set logging function.
447 * @param log_fn The function that will be called for logging messages.
448 * Passing NULL restores the default function, which logs to stderr.
450 * By default, log messages from this library are printed to stderr. This
451 * function allows you to replace the default behavior with a custom
452 * handler. The handler is only called with messages which match the
453 * current logging level and verbosity settings for the context.
454 * level is the logging level of the message. format and args are the
455 * same as in the vprintf(3) function.
457 * You may use xkb_context_set_user_data() on the context, and then call
458 * xkb_context_get_user_data() from within the logging function to provide
459 * it with additional private context.
462 xkb_context_set_log_fn(struct xkb_context *context,
463 void (*log_fn)(struct xkb_context *context,
464 enum xkb_log_level level,
465 const char *format, va_list args));
470 * @defgroup keymap Keymap Creation
471 * Creating and destroying XKB keymaps.
476 /** Flags for keymap compilation. */
477 enum xkb_keymap_compile_flags {
478 /** Apparently you can't have empty enums. What a drag. */
479 XKB_MAP_COMPILE_PLACEHOLDER = 0,
483 * Create a keymap from RMLVO names.
485 * The primary keymap entry point: creates a new XKB keymap from a set of
486 * RMLVO (Rules + Model + Layouts + Variants + Options) names.
488 * You should almost certainly be using this and nothing else to create
491 * @param context The context in which to create the keymap.
492 * @param names The RMLVO names to use.
493 * @param flags Optional flags for the keymap, or 0.
495 * @returns A keymap compiled according to the RMLVO names, or NULL if
496 * the compilation failed.
501 xkb_keymap_new_from_names(struct xkb_context *context,
502 const struct xkb_rule_names *names,
503 enum xkb_keymap_compile_flags flags);
505 /** The possible keymap text formats. */
506 enum xkb_keymap_format {
507 /** The current/classic XKB text format, as generated by xkbcomp -xkb. */
508 XKB_KEYMAP_FORMAT_TEXT_V1 = 1,
512 * Create a keymap from an XKB keymap file.
514 * @param context The context in which to create the keymap.
515 * @param file The XKB keymap file to compile.
516 * @param format The text format of the XKB keymap file to compile.
517 * @param flags Optional flags for the keymap, or 0.
519 * @returns A keymap compiled from the given XKB keymap file, or NULL of
520 * the compilation failed.
522 * @remark The file must contain an entire XKB keymap. For example, in the
523 * XKB_KEYMAP_FORMAT_TEXT_V1 format, this means the file must contain one
524 * top level '%xkb_keymap' section, which in turn contains other required
528 xkb_keymap_new_from_file(struct xkb_context *context, FILE *file,
529 enum xkb_keymap_format format,
530 enum xkb_keymap_compile_flags flags);
533 * Create a keymap from an XKB keymap given as a string.
535 * This is just like xkb_keymap_new_from_file(), but instead of a file, gets
536 * the XKB keymap as one enormous string.
538 * @see xkb_keymap_new_from_string()
541 xkb_keymap_new_from_string(struct xkb_context *context, const char *string,
542 enum xkb_keymap_format format,
543 enum xkb_keymap_compile_flags flags);
546 * Take a new reference on a keymap.
547 * @param keymap The keymap to reference.
548 * @returns The passed in keymap.
551 xkb_keymap_ref(struct xkb_keymap *keymap);
554 * Release a reference on a keymap, and possibly free it.
555 * @param keymap The keymap to unreference. If the reference count reaches
556 * zero, the keymap is freed.
559 xkb_keymap_unref(struct xkb_keymap *keymap);
561 /* See xkb_keymap_get_as_string(). */
562 #define XKB_KEYMAP_USE_ORIGINAL_FORMAT ((enum xkb_keymap_format) -1)
565 * Get the compiled keymap as a string.
567 * @param keymap The keymap to get as a string.
568 * @param format The keymap format to use for the string. You can pass
569 * in the special value XKB_KEYMAP_USE_ORIGINAL_FORMAT to use the format
570 * from which the keymap was originally created.
572 * @returns The keymap as a NUL-terminated string, or NULL if unsuccessful.
574 * The returned string may be fed back into xkb_map_new_from_string() to get
575 * the exact same keymap (possibly in another process, etc.).
577 * @remark The returned string is dynamically allocated and should be freed
581 xkb_keymap_get_as_string(struct xkb_keymap *keymap,
582 enum xkb_keymap_format format);
587 * @defgroup components XKB State Components
588 * Enumeration of state components in a keymap.
594 * Returns the number of modifiers active in the keymap.
597 xkb_keymap_num_mods(struct xkb_keymap *keymap);
600 * Returns the name of the modifier specified by 'idx', or NULL if invalid.
603 xkb_keymap_mod_get_name(struct xkb_keymap *keymap, xkb_mod_index_t idx);
606 * Returns the index of the modifier specified by 'name', or XKB_MOD_INVALID.
609 xkb_keymap_mod_get_index(struct xkb_keymap *keymap, const char *name);
612 * Returns the number of groups active in the keymap.
615 xkb_keymap_num_layouts(struct xkb_keymap *keymap);
618 * Returns the name of the group specified by 'idx', or NULL if invalid.
621 xkb_keymap_layout_get_name(struct xkb_keymap *keymap, xkb_layout_index_t idx);
624 * Returns the index of the layout specified by 'name', or XKB_LAYOUT_INVALID.
627 xkb_keymap_layout_get_index(struct xkb_keymap *keymap, const char *name);
630 * Returns the number of layouts active for the specified key.
633 xkb_keymap_num_layouts_for_key(struct xkb_keymap *keymap, xkb_keycode_t key);
636 * Returns the number of levels active for the specified key and layout.
639 xkb_keymap_num_levels_for_key(struct xkb_keymap *keymap, xkb_keycode_t key,
640 xkb_layout_index_t layout);
643 * Returns the number of LEDs in the given map.
644 * Note that LED indexes are not necessarily consecutive in the keymap.
645 * This means that some LEDs in the range between 0 and the return value
646 * might not be valid. Given such an index, xkb_keymap_led_get_name()
647 * will return NULL, and xkb_state_led_index_is_active() will return -1.
650 xkb_keymap_num_leds(struct xkb_keymap *keymap);
653 * Returns the name of the LED specified by 'idx', or NULL if invalid.
656 xkb_keymap_led_get_name(struct xkb_keymap *keymap, xkb_led_index_t idx);
659 * Returns the index of the LED specified by 'name', or XKB_LED_INVALID.
662 xkb_keymap_led_get_index(struct xkb_keymap *keymap, const char *name);
665 * Returns 1 if the key should repeat, or 0 otherwise.
668 xkb_keymap_key_repeats(struct xkb_keymap *keymap, xkb_keycode_t key);
673 * @defgroup state XKB State Objects
674 * Creating, destroying and manipulating keyboard state objects.
680 * Returns a new XKB state object for use with the given keymap, or NULL on
684 xkb_state_new(struct xkb_keymap *keymap);
687 * Takes a new reference on a state object.
690 xkb_state_ref(struct xkb_state *state);
693 * Unrefs and potentially deallocates a state object; the caller must not
694 * use the state object after calling this.
697 xkb_state_unref(struct xkb_state *state);
700 * Get the keymap from which the state object was created. Does not take
701 * a new reference on the map; you must explicitly reference it yourself
702 * if you plan to use it beyond the lifetime of the state.
705 xkb_state_get_keymap(struct xkb_state *state);
707 /** Specifies the direction of the key (press / release). */
708 enum xkb_key_direction {
709 XKB_KEY_UP, /**< The key was released. */
710 XKB_KEY_DOWN, /**< The key was pressed. */
714 * Updates a state object to reflect the given key being pressed or released.
717 xkb_state_update_key(struct xkb_state *state, xkb_keycode_t key,
718 enum xkb_key_direction direction);
721 * Gives the symbols obtained from pressing a particular key with the given
722 * state. *syms_out will be set to point to an array of keysyms, with the
723 * return value being the number of symbols in *syms_out. If the return
724 * value is 0, *syms_out will be set to NULL, as there are no symbols produced
728 xkb_state_key_get_syms(struct xkb_state *state, xkb_keycode_t key,
729 const xkb_keysym_t **syms_out);
732 * As with xkb_state_key_get_syms, but either returns exactly keysym, or
733 * XKB_KEY_NoSymbol if there are either zero or more than one symbols.
736 xkb_state_key_get_one_sym(struct xkb_state *state, xkb_keycode_t key);
739 * Returns the layout number that would be active for a particular key with
743 xkb_state_key_get_layout(struct xkb_state *state, xkb_keycode_t key);
746 * Returns the level number that would be active for a particular key with
747 * the given state and layout number, usually obtained from
748 * xkb_state_key_get_layout.
751 xkb_state_key_get_level(struct xkb_state *state, xkb_keycode_t key,
752 xkb_layout_index_t layout);
755 * Gives the symbols obtained from pressing a particular key with the given
756 * layout and level. *syms_out will be set to point to an array of keysyms,
757 * with the return value being the number of symbols in *syms_out. If the
758 * return value is 0, *syms_out will be set to NULL, as there are no symbols
759 * produced by this event.
762 xkb_keymap_key_get_syms_by_level(struct xkb_keymap *keymap,
764 xkb_layout_index_t layout,
765 xkb_level_index_t level,
766 const xkb_keysym_t **syms_out);
769 * Modifier and group types for state objects. This enum is bitmaskable,
770 * e.g. (XKB_STATE_DEPRESSED | XKB_STATE_LATCHED) is valid to exclude
773 enum xkb_state_component {
774 /** A key holding this modifier or group is currently physically
775 * depressed; also known as 'base'. */
776 XKB_STATE_DEPRESSED = (1 << 0),
777 /** Modifier or group is latched, i.e. will be unset after the next
778 * non-modifier key press. */
779 XKB_STATE_LATCHED = (1 << 1),
780 /** Modifier or group is locked, i.e. will be unset after the key
781 * provoking the lock has been pressed again. */
782 XKB_STATE_LOCKED = (1 << 2),
783 /** Combinatination of depressed, latched, and locked. */
784 XKB_STATE_EFFECTIVE =
785 (XKB_STATE_DEPRESSED | XKB_STATE_LATCHED | XKB_STATE_LOCKED),
789 * Match flags for xkb_state_mod_indices_are_active and
790 * xkb_state_mod_names_are_active, specifying how the conditions for a
791 * successful match. XKB_STATE_MATCH_NON_EXCLUSIVE is bitmaskable with
794 enum xkb_state_match {
795 /** Returns true if any of the modifiers are active. */
796 XKB_STATE_MATCH_ANY = (1 << 0),
797 /** Returns true if all of the modifiers are active. */
798 XKB_STATE_MATCH_ALL = (1 << 1),
799 /** Makes matching non-exclusive, i.e. will not return false if a
800 * modifier not specified in the arguments is active. */
801 XKB_STATE_MATCH_NON_EXCLUSIVE = (1 << 16),
805 * Updates a state object from a set of explicit masks. This entrypoint is
806 * really only for window systems and the like, where a master process
807 * holds an xkb_state, then serializes it over a wire protocol, and clients
808 * then use the serialization to feed in to their own xkb_state.
810 * All parameters must always be passed, or the resulting state may be
813 * The serialization is lossy and will not survive round trips; it must only
814 * be used to feed slave state objects, and must not be used to update the
817 * Please do not use this unless you fit the description above.
820 xkb_state_update_mask(struct xkb_state *state, xkb_mod_mask_t base_mods,
821 xkb_mod_mask_t latched_mods, xkb_mod_mask_t locked_mods,
822 xkb_layout_index_t base_group,
823 xkb_layout_index_t latched_group,
824 xkb_layout_index_t locked_group);
827 * The counterpart to xkb_state_update_mask, to be used on the server side
828 * of serialization. Returns a xkb_mod_mask_t representing the given
829 * component(s) of the state.
831 * This function should not be used in regular clients; please use the
832 * xkb_state_mod_*_is_active or xkb_state_foreach_active_mod API instead.
834 * Can return NULL on failure.
837 xkb_state_serialize_mods(struct xkb_state *state,
838 enum xkb_state_component component);
841 * The group equivalent of xkb_state_serialize_mods: please see its
845 xkb_state_serialize_layout(struct xkb_state *state,
846 enum xkb_state_component component);
849 * Returns 1 if the modifier specified by 'name' is active in the manner
850 * specified by 'type', 0 if it is unset, or -1 if the modifier does not
854 xkb_state_mod_name_is_active(struct xkb_state *state, const char *name,
855 enum xkb_state_component type);
858 * Returns 1 if the modifiers specified by the varargs (NULL-terminated
859 * strings, with a NULL sentinel) are active in the manner specified by
860 * 'match', 0 otherwise, or -1 if any of the modifiers do not exist in
864 xkb_state_mod_names_are_active(struct xkb_state *state,
865 enum xkb_state_component type,
866 enum xkb_state_match match,
870 * Returns 1 if the modifier specified by 'idx' is active in the manner
871 * specified by 'type', 0 if it is unset, or -1 if the modifier does not
872 * exist in the current map.
875 xkb_state_mod_index_is_active(struct xkb_state *state, xkb_mod_index_t idx,
876 enum xkb_state_component type);
879 * Returns 1 if the modifiers specified by the varargs (of type
880 * xkb_mod_index_t, with a XKB_MOD_INVALID sentinel) are active in the
881 * manner specified by 'match' and 'type', 0 otherwise, or -1 if any of
882 * the modifiers do not exist in the map.
885 xkb_state_mod_indices_are_active(struct xkb_state *state,
886 enum xkb_state_component type,
887 enum xkb_state_match match,
891 * Returns 1 if the modifier specified by 'idx' is used in the
892 * translation of the keycode 'key' to the key symbols obtained by
893 * pressing it (as in xkb_key_get_syms), given the current state.
894 * Returns 0 otherwise.
897 xkb_state_mod_index_is_consumed(struct xkb_state *state, xkb_keycode_t key,
898 xkb_mod_index_t idx);
901 * Takes the given modifier mask, and removes all modifiers which are
902 * marked as 'consumed' (see xkb_key_mod_index_is_consumed definition)
903 * for that particular key.
906 xkb_state_mod_mask_remove_consumed(struct xkb_state *state, xkb_keycode_t key,
907 xkb_mod_mask_t mask);
910 * Returns 1 if the group specified by 'name' is active in the manner
911 * specified by 'type', 0 if it is unset, or -1 if the group does not
912 * exist in the current map.
915 xkb_state_layout_name_is_active(struct xkb_state *state, const char *name,
916 enum xkb_state_component type);
919 * Returns 1 if the group specified by 'idx' is active in the manner
920 * specified by 'type', 0 if it is unset, or -1 if the group does not
921 * exist in the current map.
924 xkb_state_layout_index_is_active(struct xkb_state *state,
925 xkb_layout_index_t idx,
926 enum xkb_state_component type);
929 * Returns 1 if the LED specified by 'name' is active, 0 if it is unset, or
930 * -1 if the LED does not exist in the current map.
933 xkb_state_led_name_is_active(struct xkb_state *state, const char *name);
936 * Returns 1 if the LED specified by 'idx' is active, 0 if it is unset, or
937 * -1 if the LED does not exist in the current map.
940 xkb_state_led_index_is_active(struct xkb_state *state, xkb_led_index_t idx);
944 /* Leave this include last, so it can pick up our types, etc. */
945 #include <xkbcommon/xkbcommon-compat.h>
951 #endif /* _XKBCOMMON_H_ */