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>
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_led_index_t;
97 #define XKB_MOD_INVALID (0xffffffff)
98 #define XKB_GROUP_INVALID (0xffffffff)
99 #define XKB_KEYCODE_INVALID (0xffffffff)
100 #define XKB_LED_INVALID (0xffffffff)
102 #define XKB_KEYCODE_MAX (0xffffffff - 1)
103 #define xkb_keycode_is_legal_ext(kc) (kc <= XKB_KEYCODE_MAX)
104 #define xkb_keycode_is_legal_x11(kc) (kc >= 8 && kc <= 255)
107 * Names to compile a keymap with, also known as RMLVO. These names together
108 * should be the primary identifier for a keymap.
110 struct xkb_rule_names {
119 * Opaque context object; may only be created, accessed, manipulated and
120 * destroyed through the xkb_context_*() API.
125 * Opaque keymap object; may only be created, accessed, manipulated and
126 * destroyed through the xkb_state_*() API.
131 * Opaque state object; may only be created, accessed, manipulated and
132 * destroyed through the xkb_state_*() API.
141 * Returns the name for a keysym as a string; will return unknown Unicode
142 * codepoints as "Ua1b2", and other unknown keysyms as "0xabcd1234".
145 xkb_keysym_get_name(xkb_keysym_t ks, char *buffer, size_t size);
148 * See xkb_keysym_to_string comments: this function will accept any string
149 * from that function.
152 xkb_keysym_from_name(const char *s);
155 * Return the printable representation of the keystring in Unicode/UTF-8.
156 * The buffer passed must be at least 7 bytes long. The return value
157 * is the number of bytes written to the buffer. A return value of zero
158 * means that the keysym does not have a known printable Unicode
159 * representation, and a return value of -1 means that the buffer was too
160 * small to contain the return.
163 xkb_keysym_to_utf8(xkb_keysym_t keysym, char *buffer, size_t size);
166 * Returns the Unicode/UTF-32 representation of the provided keysym, which is
167 * also compatible with UCS-4. A return value of zero means the keysym does
168 * not have a known printable Unicode representation.
171 xkb_keysym_to_utf32(xkb_keysym_t keysym);
174 * @defgroup context XKB contexts
175 * Every keymap compilation request must have an XKB context associated with
176 * it. The context keeps around state such as the include path.
181 enum xkb_context_flags {
182 /** Create this context with an empty include path. */
183 XKB_CONTEXT_NO_DEFAULT_INCLUDES = 1,
187 * Returns a new XKB context, or NULL on failure. If successful, the caller
188 * holds a reference on the context, and must free it when finished with
189 * xkb_context_unref().
192 xkb_context_new(enum xkb_context_flags flags);
195 * Appends a new entry to the include path used for keymap compilation.
196 * Returns 1 on success, or 0 if the include path could not be added or is
200 xkb_context_include_path_append(struct xkb_context *context, const char *path);
203 * Appends the default include paths to the context's current include path.
204 * Returns 1 on success, or 0 if the primary include path could not be
208 xkb_context_include_path_append_default(struct xkb_context *context);
211 * Removes all entries from the context's include path, and inserts the
212 * default paths. Returns 1 on success, or 0 if the primary include path
213 * could not be added.
216 xkb_context_include_path_reset_defaults(struct xkb_context *context);
219 * Removes all entries from the context's include path.
222 xkb_context_include_path_clear(struct xkb_context *context);
225 * Returns the number of include paths currently active in the context.
228 xkb_context_num_include_paths(struct xkb_context *context);
231 * Returns the include path at the specified index within the context.
234 xkb_context_include_path_get(struct xkb_context *context, unsigned int index);
237 * Takes a new reference on an XKB context.
240 xkb_context_ref(struct xkb_context *context);
243 * Releases a reference on an XKB context, and possibly frees it.
246 xkb_context_unref(struct xkb_context *context);
251 * @defgroup map Keymap management
252 * These utility functions allow you to create and deallocate XKB keymaps.
257 enum xkb_map_compile_flags {
258 /** Apparently you can't have empty enums. What a drag. */
259 XKB_MAP_COMPILE_PLACEHOLDER = 0,
263 * The primary keymap entry point: creates a new XKB keymap from a set of
264 * RMLVO (Rules + Model + Layout + Variant + Option) names.
266 * You should almost certainly be using this and nothing else to create
270 xkb_map_new_from_names(struct xkb_context *context,
271 const struct xkb_rule_names *names,
272 enum xkb_map_compile_flags flags);
274 enum xkb_keymap_format {
275 /** The current/classic XKB text format, as generated by xkbcomp -xkb. */
276 XKB_KEYMAP_FORMAT_TEXT_V1 = 1,
280 * Creates an XKB keymap from a full text XKB keymap passed into the
284 xkb_map_new_from_file(struct xkb_context *context,
285 FILE *file, enum xkb_keymap_format format,
286 enum xkb_map_compile_flags flags);
289 * Creates an XKB keymap from a full text XKB keymap serialized into one
293 xkb_map_new_from_string(struct xkb_context *context,
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,
509 xkb_mod_mask_t base_mods,
510 xkb_mod_mask_t latched_mods,
511 xkb_mod_mask_t locked_mods,
512 xkb_group_index_t base_group,
513 xkb_group_index_t latched_group,
514 xkb_group_index_t locked_group);
517 * The counterpart to xkb_state_update_mask, to be used on the server side
518 * of serialization. Returns a xkb_mod_mask_t representing the given
519 * component(s) of the state.
521 * This function should not be used in regular clients; please use the
522 * xkb_state_mod_*_is_active or xkb_state_foreach_active_mod API instead.
524 * Can return NULL on failure.
527 xkb_state_serialize_mods(struct xkb_state *state,
528 enum xkb_state_component component);
531 * The group equivalent of xkb_state_serialize_mods: please see its
535 xkb_state_serialize_group(struct xkb_state *state,
536 enum xkb_state_component component);
539 * Returns 1 if the modifier specified by 'name' is active in the manner
540 * specified by 'type', 0 if it is unset, or -1 if the modifier does not
544 xkb_state_mod_name_is_active(struct xkb_state *state, const char *name,
545 enum xkb_state_component type);
548 * Returns 1 if the modifiers specified by the varargs (treated as
549 * NULL-terminated pointers to strings) are active in the manner
550 * specified by 'match', 0 otherwise, or -1 if any of the modifiers
551 * do not exist in the map.
554 xkb_state_mod_names_are_active(struct xkb_state *state,
555 enum xkb_state_component type,
556 enum xkb_state_match match,
560 * Returns 1 if the modifier specified by 'idx' is active in the manner
561 * specified by 'type', 0 if it is unset, or -1 if the modifier does not
562 * exist in the current map.
565 xkb_state_mod_index_is_active(struct xkb_state *state, xkb_mod_index_t idx,
566 enum xkb_state_component type);
569 * Returns 1 if the modifiers specified by the varargs (treated as
570 * xkb_mod_index_t, terminated with XKB_MOD_INVALID) are active in the manner
571 * specified by 'match' and 'type', 0 otherwise, or -1 if the modifier does not
572 * exist in the current map.
575 xkb_state_mod_indices_are_active(struct xkb_state *state,
576 enum xkb_state_component type,
577 enum xkb_state_match match,
581 * Returns 1 if the group specified by 'name' is active in the manner
582 * specified by 'type', 0 if it is unset, or -1 if the group does not
583 * exist in the current map.
586 xkb_state_group_name_is_active(struct xkb_state *state, const char *name,
587 enum xkb_state_component type);
590 * Returns 1 if the group specified by 'idx' is active in the manner
591 * specified by 'type', 0 if it is unset, or -1 if the group does not
592 * exist in the current map.
595 xkb_state_group_index_is_active(struct xkb_state *state, xkb_group_index_t idx,
596 enum xkb_state_component type);
599 * Returns 1 if the LED specified by 'name' is active, 0 if it is unset, or
600 * -1 if the LED does not exist in the current map.
603 xkb_state_led_name_is_active(struct xkb_state *state, const char *name);
606 * Returns 1 if the LED specified by 'idx' is active, 0 if it is unset, or
607 * -1 if the LED does not exist in the current map.
610 xkb_state_led_index_is_active(struct xkb_state *state, xkb_led_index_t idx);
618 #endif /* _XKBCOMMON_H_ */