362 lines
9.9 KiB
C
362 lines
9.9 KiB
C
/**
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* Copyright © 2012 Intel Corporation
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*
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* Author: Daniel Stone <daniel@fooishbar.org>
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*/
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/************************************************************
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* Copyright (c) 1993 by Silicon Graphics Computer Systems, Inc.
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*
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* Permission to use, copy, modify, and distribute this
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* software and its documentation for any purpose and without
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* fee is hereby granted, provided that the above copyright
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* notice appear in all copies and that both that copyright
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* notice and this permission notice appear in supporting
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* documentation, and that the name of Silicon Graphics not be
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* used in advertising or publicity pertaining to distribution
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* of the software without specific prior written permission.
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* Silicon Graphics makes no representation about the suitability
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* of this software for any purpose. It is provided "as is"
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* without any express or implied warranty.
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*
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* SILICON GRAPHICS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS
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* SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
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* AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL SILICON
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* GRAPHICS BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL
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* DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
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* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
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* OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH
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* THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*
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* ********************************************************/
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#include "xkb-priv.h"
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/**
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* Returns the total number of modifiers active in the keymap.
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*/
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_X_EXPORT xkb_mod_index_t
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xkb_map_num_mods(struct xkb_keymap *keymap)
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{
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xkb_mod_index_t i;
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for (i = 0; i < XkbNumVirtualMods; i++)
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if (!keymap->names->vmods[i])
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break;
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/* We always have all the core modifiers (for now), plus any virtual
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* modifiers we may have defined, and then shift to one-based indexing. */
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return i + Mod5MapIndex + 1;
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}
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/**
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* Return the name for a given modifier.
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*/
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_X_EXPORT const char *
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xkb_map_mod_get_name(struct xkb_keymap *keymap, xkb_mod_index_t idx)
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{
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if (idx >= xkb_map_num_mods(keymap))
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return NULL;
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/* First try to find a legacy modifier name. */
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switch (idx) {
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case ShiftMapIndex:
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return "Shift";
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case ControlMapIndex:
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return "Control";
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case LockMapIndex:
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return "Caps Lock";
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case Mod1MapIndex:
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return "Mod1";
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case Mod2MapIndex:
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return "Mod2";
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case Mod3MapIndex:
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return "Mod3";
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case Mod4MapIndex:
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return "Mod4";
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case Mod5MapIndex:
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return "Mod5";
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default:
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break;
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}
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/* If that fails, try to find a virtual mod name. */
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return keymap->names->vmods[idx - Mod5MapIndex];
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}
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/**
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* Returns the index for a named modifier.
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*/
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_X_EXPORT xkb_mod_index_t
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xkb_map_mod_get_index(struct xkb_keymap *keymap, const char *name)
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{
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xkb_mod_index_t i;
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if (strcasecmp(name, "Shift") == 0)
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return ShiftMapIndex;
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if (strcasecmp(name, "Control") == 0)
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return ControlMapIndex;
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if (strcasecmp(name, "Caps Lock") == 0)
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return LockMapIndex;
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if (strcasecmp(name, "Mod1") == 0)
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return Mod1MapIndex;
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if (strcasecmp(name, "Mod2") == 0)
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return Mod2MapIndex;
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if (strcasecmp(name, "Mod3") == 0)
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return Mod3MapIndex;
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if (strcasecmp(name, "Mod4") == 0)
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return Mod4MapIndex;
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if (strcasecmp(name, "Mod5") == 0)
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return Mod5MapIndex;
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for (i = 0; i < XkbNumVirtualMods && keymap->names->vmods[i]; i++) {
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if (strcasecmp(name, keymap->names->vmods[i]) == 0)
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return i + Mod5MapIndex;
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}
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return XKB_GROUP_INVALID;
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}
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/**
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* Return the total number of active groups in the keymap.
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*/
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_X_EXPORT xkb_group_index_t
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xkb_map_num_groups(struct xkb_keymap *keymap)
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{
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xkb_group_index_t ret = 0;
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xkb_group_index_t i;
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for (i = 0; i < XkbNumKbdGroups; i++)
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if (keymap->compat->groups[i].mask)
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ret++;
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return ret;
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}
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/**
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* Returns the name for a given group.
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*/
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_X_EXPORT const char *
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xkb_map_group_get_name(struct xkb_keymap *keymap, xkb_group_index_t idx)
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{
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if (idx >= xkb_map_num_groups(keymap))
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return NULL;
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return keymap->names->groups[idx];
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}
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/**
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* Returns the index for a named group.
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*/
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_X_EXPORT xkb_group_index_t
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xkb_map_group_get_index(struct xkb_keymap *keymap, const char *name)
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{
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xkb_group_index_t num_groups = xkb_map_num_groups(keymap);
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xkb_group_index_t i;
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for (i = 0; i < num_groups; i++) {
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if (strcasecmp(keymap->names->groups[i], name) == 0)
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return i;
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}
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return XKB_GROUP_INVALID;
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}
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/**
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* Returns the number of groups active for a particular key.
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*/
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_X_EXPORT xkb_group_index_t
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xkb_key_num_groups(struct xkb_keymap *keymap, xkb_keycode_t key)
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{
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return XkbKeyNumGroups(keymap, key);
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}
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/**
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* Return the total number of active LEDs in the keymap.
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*/
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_X_EXPORT xkb_led_index_t
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xkb_map_num_leds(struct xkb_keymap *keymap)
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{
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xkb_led_index_t ret = 0;
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xkb_led_index_t i;
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for (i = 0; i < XkbNumIndicators; i++)
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if (keymap->indicators->maps[i].which_groups ||
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keymap->indicators->maps[i].which_mods ||
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keymap->indicators->maps[i].ctrls)
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ret++;
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return ret;
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}
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/**
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* Returns the name for a given group.
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*/
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_X_EXPORT const char *
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xkb_map_led_get_name(struct xkb_keymap *keymap, xkb_led_index_t idx)
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{
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if (idx >= xkb_map_num_leds(keymap))
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return NULL;
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return keymap->names->indicators[idx];
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}
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/**
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* Returns the index for a named group.
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*/
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_X_EXPORT xkb_group_index_t
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xkb_map_led_get_index(struct xkb_keymap *keymap, const char *name)
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{
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xkb_led_index_t num_leds = xkb_map_num_leds(keymap);
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xkb_led_index_t i;
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for (i = 0; i < num_leds; i++) {
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if (strcasecmp(keymap->names->indicators[i], name) == 0)
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return i;
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}
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return XKB_LED_INVALID;
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}
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/**
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* Returns the level to use for the given key and state, or -1 if invalid.
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*/
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_X_EXPORT unsigned int
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xkb_key_get_level(struct xkb_state *state, xkb_keycode_t key,
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unsigned int group)
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{
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struct xkb_keymap *keymap = xkb_state_get_map(state);
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struct xkb_key_type *type = XkbKeyType(keymap, key, group);
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struct xkb_kt_map_entry *entry;
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unsigned int active_mods;
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active_mods = xkb_state_serialize_mods(state, XKB_STATE_EFFECTIVE);
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active_mods &= type->mods.mask;
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darray_foreach(entry, type->map) {
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if (entry->mods.mask == active_mods)
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return entry->level;
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}
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return 0;
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}
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/**
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* Returns the group to use for the given key and state, taking
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* wrapping/clamping/etc into account.
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*/
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_X_EXPORT unsigned int
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xkb_key_get_group(struct xkb_state *state, xkb_keycode_t key)
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{
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struct xkb_keymap *keymap = xkb_state_get_map(state);
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unsigned int info = XkbKeyGroupInfo(keymap, key);
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unsigned int num_groups = XkbKeyNumGroups(keymap, key);
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unsigned int ret = xkb_state_serialize_group(state, XKB_STATE_EFFECTIVE);
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if (ret < XkbKeyNumGroups(keymap, key))
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return ret;
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switch (XkbOutOfRangeGroupAction(info)) {
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case XkbRedirectIntoRange:
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ret = XkbOutOfRangeGroupNumber(info);
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if (ret >= num_groups)
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ret = 0;
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break;
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case XkbClampIntoRange:
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ret = num_groups - 1;
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break;
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case XkbWrapIntoRange:
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default:
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ret %= num_groups;
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break;
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}
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return ret;
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}
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/**
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* As below, but takes an explicit group/level rather than state.
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*/
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int
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xkb_key_get_syms_by_level(struct xkb_keymap *keymap, xkb_keycode_t key,
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unsigned int group, unsigned int level,
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const xkb_keysym_t **syms_out)
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{
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int num_syms;
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if (group >= XkbKeyNumGroups(keymap, key))
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goto err;
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if (level >= XkbKeyGroupWidth(keymap, key, group))
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goto err;
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num_syms = XkbKeyNumSyms(keymap, key, group, level);
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if (num_syms == 0)
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goto err;
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*syms_out = XkbKeySymEntry(keymap, key, group, level);
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return num_syms;
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err:
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*syms_out = NULL;
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return 0;
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}
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/**
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* Provides the symbols to use for the given key and state. Returns the
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* number of symbols pointed to in syms_out.
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*/
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_X_EXPORT int
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xkb_key_get_syms(struct xkb_state *state, xkb_keycode_t key,
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const xkb_keysym_t **syms_out)
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{
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struct xkb_keymap *keymap = xkb_state_get_map(state);
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int group;
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int level;
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if (!state || key < keymap->min_key_code || key > keymap->max_key_code)
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return -1;
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group = xkb_key_get_group(state, key);
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if (group == -1)
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goto err;
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level = xkb_key_get_level(state, key, group);
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if (level == -1)
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goto err;
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return xkb_key_get_syms_by_level(keymap, key, group, level, syms_out);
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err:
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*syms_out = NULL;
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return 0;
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}
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/**
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* Simple boolean specifying whether or not the key should repeat.
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*/
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_X_EXPORT int
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xkb_key_repeats(struct xkb_keymap *keymap, xkb_keycode_t key)
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{
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return !!(keymap->ctrls->per_key_repeat[key / 8] & (1 << (key % 8)));
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}
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