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kc3-lang/libxkbcommon/src/keymap.h

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  • Author : Ran Benita
    Date : 2013-02-08 13:21:27
    Hash : edc0aef5
    Message : text: take xkb_mod_set instead of the entire keymap The modifier printing functions only need the modifier information, they don't care about keys or leds, etc. Signed-off-by: Ran Benita <ran234@gmail.com>

  • src/keymap.h
  • /*
     * Copyright 1985, 1987, 1990, 1998  The Open Group
     *
     * Permission is hereby granted, free of charge, to any person obtaining a
     * copy of this software and associated documentation files (the "Software"),
     * to deal in the Software without restriction, including without limitation
     * the rights to use, copy, modify, merge, publish, distribute, sublicense,
     * and/or sell copies of the Software, and to permit persons to whom the
     * Software is furnished to do so, subject to the following conditions:
     *
     * The above copyright notice and this permission notice shall be included in
     * all copies or substantial portions of the Software.
     *
     * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
     * AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
     * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
     * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
     *
     * Except as contained in this notice, the names of the authors or their
     * institutions shall not be used in advertising or otherwise to promote the
     * sale, use or other dealings in this Software without prior written
     * authorization from the authors.
     */
    
    /************************************************************
     * Copyright (c) 1993 by Silicon Graphics Computer Systems, Inc.
     *
     * Permission to use, copy, modify, and distribute this
     * software and its documentation for any purpose and without
     * fee is hereby granted, provided that the above copyright
     * notice appear in all copies and that both that copyright
     * notice and this permission notice appear in supporting
     * documentation, and that the name of Silicon Graphics not be
     * used in advertising or publicity pertaining to distribution
     * of the software without specific prior written permission.
     * Silicon Graphics makes no representation about the suitability
     * of this software for any purpose. It is provided "as is"
     * without any express or implied warranty.
     *
     * SILICON GRAPHICS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS
     * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
     * AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL SILICON
     * GRAPHICS BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL
     * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
     * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
     * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION  WITH
     * THE USE OR PERFORMANCE OF THIS SOFTWARE.
     *
     ********************************************************/
    
    /*
     * Copyright © 2009 Dan Nicholson
     * Copyright © 2012 Intel Corporation
     * Copyright © 2012 Ran Benita
     *
     * Permission is hereby granted, free of charge, to any person obtaining a
     * copy of this software and associated documentation files (the "Software"),
     * to deal in the Software without restriction, including without limitation
     * the rights to use, copy, modify, merge, publish, distribute, sublicense,
     * and/or sell copies of the Software, and to permit persons to whom the
     * Software is furnished to do so, subject to the following conditions:
     *
     * The above copyright notice and this permission notice (including the next
     * paragraph) shall be included in all copies or substantial portions of the
     * Software.
     *
     * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
     * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
     * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
     * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
     * DEALINGS IN THE SOFTWARE.
     *
     * Author: Daniel Stone <daniel@fooishbar.org>
     *         Dan Nicholson <dbn.lists@gmail.com>
     */
    
    #ifndef KEYMAP_H
    #define KEYMAP_H
    
     /* Don't use compat names in internal code. */
    #define _XKBCOMMON_COMPAT_H
    #include "xkbcommon/xkbcommon.h"
    
    #include "utils.h"
    #include "context.h"
    
    /* This limit is artificially enforced, we do not depend on it any where.
     * The reason it's still here is that the rules file format does not
     * support multiple groups very well, and the rules shipped with
     * xkeyboard-config (see rules/evdev) depend on this limit extensively.
     * So just lifting this limit would cause problems for people who will use
     * more than 4 layouts.
     * TODO: Fix the group index syntax in the rules format, preferably in a
     *       backwards compatible way.
     *       See e.g. https://bugs.freedesktop.org/show_bug.cgi?id=14372
     * Note: A limit on the number of groups we *do* depend on is imposed by
     * the size of the xkb_layout_mask_t type (32). This is more than enough
     * though.
     */
    #define XKB_MAX_GROUPS 4
    
    /* Don't allow more modifiers than we can hold in xkb_mod_mask_t. */
    #define XKB_MAX_MODS ((xkb_mod_index_t) (sizeof(xkb_mod_mask_t) * 8))
    
    /* Don't allow more leds than we can hold in xkb_led_mask_t. */
    #define XKB_MAX_LEDS ((xkb_led_index_t) (sizeof(xkb_led_mask_t) * 8))
    
    /* These should all go away. */
    enum mod_type {
        MOD_REAL = (1 << 0),
        MOD_VIRT = (1 << 1),
        MOD_BOTH = (MOD_REAL | MOD_VIRT),
    };
    #define MOD_REAL_MASK_ALL ((xkb_mod_mask_t) 0x000000ff)
    
    enum xkb_action_type {
        ACTION_TYPE_NONE = 0,
        ACTION_TYPE_MOD_SET,
        ACTION_TYPE_MOD_LATCH,
        ACTION_TYPE_MOD_LOCK,
        ACTION_TYPE_GROUP_SET,
        ACTION_TYPE_GROUP_LATCH,
        ACTION_TYPE_GROUP_LOCK,
        ACTION_TYPE_PTR_MOVE,
        ACTION_TYPE_PTR_BUTTON,
        ACTION_TYPE_PTR_LOCK,
        ACTION_TYPE_PTR_DEFAULT,
        ACTION_TYPE_TERMINATE,
        ACTION_TYPE_SWITCH_VT,
        ACTION_TYPE_CTRL_SET,
        ACTION_TYPE_CTRL_LOCK,
        ACTION_TYPE_PRIVATE,
        _ACTION_TYPE_NUM_ENTRIES
    };
    
    enum xkb_action_flags {
        ACTION_LOCK_CLEAR = (1 << 0),
        ACTION_LATCH_TO_LOCK = (1 << 1),
        ACTION_LOCK_NO_LOCK = (1 << 2),
        ACTION_LOCK_NO_UNLOCK = (1 << 3),
        ACTION_MODS_LOOKUP_MODMAP = (1 << 4),
        ACTION_ABSOLUTE_SWITCH = (1 << 5),
        ACTION_ABSOLUTE_X = (1 << 6),
        ACTION_ABSOLUTE_Y = (1 << 7),
        ACTION_ACCEL = (1 << 8),
        ACTION_SAME_SCREEN = (1 << 9),
    };
    
    enum xkb_action_controls {
        CONTROL_REPEAT = (1 << 0),
        CONTROL_SLOW = (1 << 1),
        CONTROL_DEBOUNCE = (1 << 2),
        CONTROL_STICKY = (1 << 3),
        CONTROL_MOUSEKEYS = (1 << 4),
        CONTROL_MOUSEKEYS_ACCEL = (1 << 5),
        CONTROL_AX = (1 << 6),
        CONTROL_AX_TIMEOUT = (1 << 7),
        CONTROL_AX_FEEDBACK = (1 << 8),
        CONTROL_BELL = (1 << 9),
        CONTROL_IGNORE_GROUP_LOCK = (1 << 10),
        CONTROL_ALL = \
            (CONTROL_REPEAT | CONTROL_SLOW | CONTROL_DEBOUNCE | CONTROL_STICKY | \
             CONTROL_MOUSEKEYS | CONTROL_MOUSEKEYS_ACCEL | CONTROL_AX | \
             CONTROL_AX_TIMEOUT | CONTROL_AX_FEEDBACK | CONTROL_BELL | \
             CONTROL_IGNORE_GROUP_LOCK)
    };
    
    enum xkb_match_operation {
        MATCH_NONE,
        MATCH_ANY_OR_NONE,
        MATCH_ANY,
        MATCH_ALL,
        MATCH_EXACTLY,
    };
    
    struct xkb_mods {
        xkb_mod_mask_t mods;       /* original real+virtual mods in definition */
        xkb_mod_mask_t mask;       /* computed effective mask */
    };
    
    struct xkb_mod_action {
        enum xkb_action_type type;
        enum xkb_action_flags flags;
        struct xkb_mods mods;
    };
    
    struct xkb_group_action {
        enum xkb_action_type type;
        enum xkb_action_flags flags;
        int32_t group;
    };
    
    struct xkb_controls_action {
        enum xkb_action_type type;
        enum xkb_action_flags flags;
        enum xkb_action_controls ctrls;
    };
    
    struct xkb_pointer_default_action {
        enum xkb_action_type type;
        enum xkb_action_flags flags;
        int8_t value;
    };
    
    struct xkb_switch_screen_action {
        enum xkb_action_type type;
        enum xkb_action_flags flags;
        int8_t screen;
    };
    
    struct xkb_pointer_action {
        enum xkb_action_type type;
        enum xkb_action_flags flags;
        int16_t x;
        int16_t y;
    };
    
    struct xkb_pointer_button_action {
        enum xkb_action_type type;
        enum xkb_action_flags flags;
        uint8_t count;
        uint8_t button;
    };
    
    struct xkb_private_action {
        enum xkb_action_type type;
        enum xkb_action_flags flags;
        uint8_t data[7];
    };
    
    union xkb_action {
        enum xkb_action_type type;
        struct xkb_mod_action mods;
        struct xkb_group_action group;
        struct xkb_controls_action ctrls;
        struct xkb_pointer_default_action dflt;
        struct xkb_switch_screen_action screen;
        struct xkb_pointer_action ptr;
        struct xkb_pointer_button_action btn;
        struct xkb_private_action priv;
    };
    
    struct xkb_key_type_entry {
        xkb_level_index_t level;
        struct xkb_mods mods;
        struct xkb_mods preserve;
    };
    
    struct xkb_key_type {
        xkb_atom_t name;
        struct xkb_mods mods;
        xkb_level_index_t num_levels;
        xkb_atom_t *level_names;
        unsigned int num_entries;
        struct xkb_key_type_entry *entries;
    };
    
    struct xkb_sym_interpret {
        xkb_keysym_t sym;
        enum xkb_match_operation match;
        xkb_mod_mask_t mods;
        xkb_mod_index_t virtual_mod;
        union xkb_action action;
        bool level_one_only;
        bool repeat;
    };
    
    struct xkb_led {
        xkb_atom_t name;
        enum xkb_state_component which_groups;
        xkb_layout_mask_t groups;
        enum xkb_state_component which_mods;
        struct xkb_mods mods;
        enum xkb_action_controls ctrls;
    };
    
    struct xkb_key_alias {
        xkb_atom_t real;
        xkb_atom_t alias;
    };
    
    struct xkb_controls {
        unsigned char groups_wrap;
        struct xkb_mods internal;
        struct xkb_mods ignore_lock;
        unsigned short repeat_delay;
        unsigned short repeat_interval;
        unsigned short slow_keys_delay;
        unsigned short debounce_delay;
        unsigned short ax_options;
        unsigned short ax_timeout;
        unsigned short axt_opts_mask;
        unsigned short axt_opts_values;
        unsigned int axt_ctrls_mask;
        unsigned int axt_ctrls_values;
    };
    
    /* Such an awkward name.  Oh well. */
    enum xkb_range_exceed_type {
        RANGE_WRAP = 0,
        RANGE_SATURATE,
        RANGE_REDIRECT,
    };
    
    enum xkb_explicit_components {
        EXPLICIT_INTERP = (1 << 0),
        EXPLICIT_VMODMAP = (1 << 1),
        EXPLICIT_REPEAT = (1 << 2),
    };
    
    struct xkb_level {
        union xkb_action action;
        unsigned int num_syms;
        union {
            xkb_keysym_t sym;       /* num_syms == 1 */
            xkb_keysym_t *syms;     /* num_syms > 1  */
        } u;
    };
    
    struct xkb_group {
        bool explicit_type;
        /* Points to a type in keymap->types. */
        const struct xkb_key_type *type;
        /* Use XkbKeyGroupWidth for the number of levels. */
        struct xkb_level *levels;
    };
    
    struct xkb_key {
        xkb_keycode_t keycode;
        xkb_atom_t name;
    
        enum xkb_explicit_components explicit;
    
        xkb_mod_mask_t modmap;
        xkb_mod_mask_t vmodmap;
    
        bool repeats;
    
        enum xkb_range_exceed_type out_of_range_group_action;
        xkb_layout_index_t out_of_range_group_number;
    
        xkb_layout_index_t num_groups;
        struct xkb_group *groups;
    };
    
    struct xkb_mod {
        xkb_atom_t name;
        enum mod_type type;
        xkb_mod_mask_t mapping; /* vmod -> real mod mapping */
    };
    
    struct xkb_mod_set {
        darray(struct xkb_mod) mods;
    };
    
    /* Common keyboard description structure */
    struct xkb_keymap {
        struct xkb_context *ctx;
    
        int refcnt;
        enum xkb_keymap_compile_flags flags;
        enum xkb_keymap_format format;
    
        enum xkb_action_controls enabled_ctrls;
    
        xkb_keycode_t min_key_code;
        xkb_keycode_t max_key_code;
        struct xkb_key *keys;
    
        /* aliases in no particular order */
        unsigned int num_key_aliases;
        struct xkb_key_alias *key_aliases;
    
        struct xkb_key_type *types;
        unsigned int num_types;
    
        unsigned int num_sym_interprets;
        struct xkb_sym_interpret *sym_interprets;
    
        struct xkb_mod_set mods;
    
        /* Number of groups in the key with the most groups. */
        xkb_layout_index_t num_groups;
        /* Not all groups must have names. */
        xkb_layout_index_t num_group_names;
        xkb_atom_t *group_names;
    
        darray(struct xkb_led) leds;
    
        char *keycodes_section_name;
        char *symbols_section_name;
        char *types_section_name;
        char *compat_section_name;
    };
    
    #define xkb_foreach_key(iter, keymap) \
        for (iter = keymap->keys + keymap->min_key_code; \
             iter <= keymap->keys + keymap->max_key_code; \
             iter++)
    
    static inline const struct xkb_key *
    XkbKey(struct xkb_keymap *keymap, xkb_keycode_t kc)
    {
        if (kc < keymap->min_key_code || kc > keymap->max_key_code)
            return NULL;
        return &keymap->keys[kc];
    }
    
    static inline xkb_level_index_t
    XkbKeyGroupWidth(const struct xkb_key *key, xkb_layout_index_t layout)
    {
        return key->groups[layout].type->num_levels;
    }
    
    struct xkb_keymap *
    xkb_keymap_new(struct xkb_context *ctx,
                   enum xkb_keymap_format format,
                   enum xkb_keymap_compile_flags flags);
    
    struct xkb_key *
    XkbKeyByName(struct xkb_keymap *keymap, xkb_atom_t name, bool use_aliases);
    
    xkb_atom_t
    XkbResolveKeyAlias(struct xkb_keymap *keymap, xkb_atom_t name);
    
    void
    XkbEscapeMapName(char *name);
    
    xkb_mod_index_t
    XkbModNameToIndex(const struct xkb_mod_set *mods, xkb_atom_t name,
                      enum mod_type type);
    
    xkb_layout_index_t
    XkbWrapGroupIntoRange(int32_t group,
                          xkb_layout_index_t num_groups,
                          enum xkb_range_exceed_type out_of_range_group_action,
                          xkb_layout_index_t out_of_range_group_number);
    
    struct xkb_keymap_format_ops {
        bool (*keymap_new_from_names)(struct xkb_keymap *keymap,
                                      const struct xkb_rule_names *names);
        bool (*keymap_new_from_string)(struct xkb_keymap *keymap,
                                       const char *string, size_t length);
        bool (*keymap_new_from_file)(struct xkb_keymap *keymap, FILE *file);
        char *(*keymap_get_as_string)(struct xkb_keymap *keymap);
    };
    
    extern const struct xkb_keymap_format_ops text_v1_keymap_format_ops;
    
    #endif