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termux-x11/app/src/main/jni/libxkbcommon/xkbcommon/src/x11/keymap.c

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/*
* Copyright © 2013 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.
*/
#include "config.h"
#include "x11-priv.h"
/*
* References for the lonesome traveler:
* Xkb protocol specification:
* https://www.x.org/releases/current/doc/kbproto/xkbproto.html
* The XCB xkb XML protocol file:
* /user/share/xcb/xkb.xml
* The XCB xkb header file:
* /usr/include/xcb/xkb.h
* The old kbproto header files:
* /usr/include/X11/extensions/XKB{,proto,str}.h
* Xlib XKB source code:
* <libX11>/src/xkb/XKBGetMap.c (and friends)
* X server XKB protocol handling:
* <xserver>/xkb/xkb.c
* Man pages:
* XkbGetMap(3), XkbGetCompatMap(3), etc.
*/
/* Constants from /usr/include/X11/extensions/XKB.h */
/* XkbNumModifiers. */
#define NUM_REAL_MODS 8u
/* XkbNumVirtualMods. */
#define NUM_VMODS 16u
/* XkbNoModifier. */
#define NO_MODIFIER 0xff
/* XkbNumIndicators. */
#define NUM_INDICATORS 32u
/* XkbAllIndicatorsMask. */
#define ALL_INDICATORS_MASK 0xffffffff
/* Some macros. Not very nice but it'd be worse without them. */
/*
* We try not to trust the server too much and be paranoid. If we get
* something which we definitely shouldn't, we fail.
*/
#define STRINGIFY(expr) #expr
#define FAIL_UNLESS(expr) do { \
if (!(expr)) { \
log_err(keymap->ctx, \
"x11: failed to get keymap from X server: unmet condition in %s(): %s\n", \
__func__, STRINGIFY(expr)); \
goto fail; \
} \
} while (0)
#define FAIL_IF_BAD_REPLY(reply, request_name) do { \
if (!reply) { \
log_err(keymap->ctx, \
"x11: failed to get keymap from X server: %s request failed\n", \
(request_name)); \
goto fail; \
} \
} while (0)
#define ALLOC_OR_FAIL(arr, nmemb) do { \
if ((nmemb) > 0) { \
(arr) = calloc((nmemb), sizeof(*(arr))); \
if (!(arr)) \
goto fail; \
} \
} while (0)
static const xcb_xkb_map_part_t get_map_required_components =
(XCB_XKB_MAP_PART_KEY_TYPES |
XCB_XKB_MAP_PART_KEY_SYMS |
XCB_XKB_MAP_PART_MODIFIER_MAP |
XCB_XKB_MAP_PART_EXPLICIT_COMPONENTS |
XCB_XKB_MAP_PART_KEY_ACTIONS |
XCB_XKB_MAP_PART_VIRTUAL_MODS |
XCB_XKB_MAP_PART_VIRTUAL_MOD_MAP);
static const xcb_xkb_name_detail_t get_names_wanted =
(XCB_XKB_NAME_DETAIL_KEYCODES |
XCB_XKB_NAME_DETAIL_SYMBOLS |
XCB_XKB_NAME_DETAIL_TYPES |
XCB_XKB_NAME_DETAIL_COMPAT |
XCB_XKB_NAME_DETAIL_KEY_TYPE_NAMES |
XCB_XKB_NAME_DETAIL_KT_LEVEL_NAMES |
XCB_XKB_NAME_DETAIL_INDICATOR_NAMES |
XCB_XKB_NAME_DETAIL_KEY_NAMES |
XCB_XKB_NAME_DETAIL_KEY_ALIASES |
XCB_XKB_NAME_DETAIL_VIRTUAL_MOD_NAMES |
XCB_XKB_NAME_DETAIL_GROUP_NAMES);
static const xcb_xkb_name_detail_t get_names_required =
(XCB_XKB_NAME_DETAIL_KEY_TYPE_NAMES |
XCB_XKB_NAME_DETAIL_KT_LEVEL_NAMES |
XCB_XKB_NAME_DETAIL_KEY_NAMES |
XCB_XKB_NAME_DETAIL_VIRTUAL_MOD_NAMES);
static xkb_mod_mask_t
translate_mods(uint8_t rmods, uint16_t vmods_low, uint16_t vmods_high)
{
/* We represent mod masks in a single uint32_t value, with real mods
* first and vmods after (though we don't make these distinctions). */
return
((xkb_mod_mask_t) rmods) |
((xkb_mod_mask_t) vmods_low << 8) |
((xkb_mod_mask_t) vmods_high << 16);
}
static enum xkb_action_controls
translate_controls_mask(uint32_t wire)
{
enum xkb_action_controls ret = 0;
if (wire & XCB_XKB_BOOL_CTRL_REPEAT_KEYS)
ret |= CONTROL_REPEAT;
if (wire & XCB_XKB_BOOL_CTRL_SLOW_KEYS)
ret |= CONTROL_SLOW;
if (wire & XCB_XKB_BOOL_CTRL_BOUNCE_KEYS)
ret |= CONTROL_DEBOUNCE;
if (wire & XCB_XKB_BOOL_CTRL_STICKY_KEYS)
ret |= CONTROL_STICKY;
if (wire & XCB_XKB_BOOL_CTRL_MOUSE_KEYS)
ret |= CONTROL_MOUSEKEYS;
if (wire & XCB_XKB_BOOL_CTRL_MOUSE_KEYS_ACCEL)
ret |= CONTROL_MOUSEKEYS_ACCEL;
if (wire & XCB_XKB_BOOL_CTRL_ACCESS_X_KEYS)
ret |= CONTROL_AX;
if (wire & XCB_XKB_BOOL_CTRL_ACCESS_X_TIMEOUT_MASK)
ret |= CONTROL_AX_TIMEOUT;
if (wire & XCB_XKB_BOOL_CTRL_ACCESS_X_FEEDBACK_MASK)
ret |= CONTROL_AX_FEEDBACK;
if (wire & XCB_XKB_BOOL_CTRL_AUDIBLE_BELL_MASK)
ret |= CONTROL_BELL;
if (wire & XCB_XKB_BOOL_CTRL_IGNORE_GROUP_LOCK_MASK)
ret |= CONTROL_IGNORE_GROUP_LOCK;
/* Some controls are not supported and don't appear here. */
return ret;
}
static void
translate_action(union xkb_action *action, const xcb_xkb_action_t *wire)
{
switch (wire->type) {
case XCB_XKB_SA_TYPE_SET_MODS:
action->type = ACTION_TYPE_MOD_SET;
action->mods.mods.mods = translate_mods(wire->setmods.realMods,
wire->setmods.vmodsLow,
wire->setmods.vmodsHigh);
action->mods.mods.mask = translate_mods(wire->setmods.mask, 0, 0);
if (wire->setmods.flags & XCB_XKB_SA_CLEAR_LOCKS)
action->mods.flags |= ACTION_LOCK_CLEAR;
if (wire->setmods.flags & XCB_XKB_SA_LATCH_TO_LOCK)
action->mods.flags |= ACTION_LATCH_TO_LOCK;
if (wire->setmods.flags & XCB_XKB_SA_USE_MOD_MAP_MODS)
action->mods.flags |= ACTION_MODS_LOOKUP_MODMAP;
break;
case XCB_XKB_SA_TYPE_LATCH_MODS:
action->type = ACTION_TYPE_MOD_LATCH;
action->mods.mods.mods = translate_mods(wire->latchmods.realMods,
wire->latchmods.vmodsLow,
wire->latchmods.vmodsHigh);
action->mods.mods.mask = translate_mods(wire->latchmods.mask, 0, 0);
if (wire->latchmods.flags & XCB_XKB_SA_CLEAR_LOCKS)
action->mods.flags |= ACTION_LOCK_CLEAR;
if (wire->latchmods.flags & XCB_XKB_SA_LATCH_TO_LOCK)
action->mods.flags |= ACTION_LATCH_TO_LOCK;
if (wire->latchmods.flags & XCB_XKB_SA_USE_MOD_MAP_MODS)
action->mods.flags |= ACTION_MODS_LOOKUP_MODMAP;
break;
case XCB_XKB_SA_TYPE_LOCK_MODS:
action->type = ACTION_TYPE_MOD_LOCK;
action->mods.mods.mods = translate_mods(wire->lockmods.realMods,
wire->lockmods.vmodsLow,
wire->lockmods.vmodsHigh);
action->mods.mods.mask = translate_mods(wire->lockmods.mask, 0, 0);
if (wire->lockmods.flags & XCB_XKB_SA_ISO_LOCK_FLAG_NO_LOCK)
action->mods.flags |= ACTION_LOCK_NO_LOCK;
if (wire->lockmods.flags & XCB_XKB_SA_ISO_LOCK_FLAG_NO_UNLOCK)
action->mods.flags |= ACTION_LOCK_NO_UNLOCK;
if (wire->lockmods.flags & XCB_XKB_SA_USE_MOD_MAP_MODS)
action->mods.flags |= ACTION_MODS_LOOKUP_MODMAP;
break;
case XCB_XKB_SA_TYPE_SET_GROUP:
action->type = ACTION_TYPE_GROUP_SET;
action->group.group = wire->setgroup.group;
if (wire->setmods.flags & XCB_XKB_SA_CLEAR_LOCKS)
action->group.flags |= ACTION_LOCK_CLEAR;
if (wire->setmods.flags & XCB_XKB_SA_LATCH_TO_LOCK)
action->group.flags |= ACTION_LATCH_TO_LOCK;
if (wire->setmods.flags & XCB_XKB_SA_ISO_LOCK_FLAG_GROUP_ABSOLUTE)
action->group.flags |= ACTION_ABSOLUTE_SWITCH;
break;
case XCB_XKB_SA_TYPE_LATCH_GROUP:
action->type = ACTION_TYPE_GROUP_LATCH;
action->group.group = wire->latchgroup.group;
if (wire->latchmods.flags & XCB_XKB_SA_CLEAR_LOCKS)
action->group.flags |= ACTION_LOCK_CLEAR;
if (wire->latchmods.flags & XCB_XKB_SA_LATCH_TO_LOCK)
action->group.flags |= ACTION_LATCH_TO_LOCK;
if (wire->latchmods.flags & XCB_XKB_SA_ISO_LOCK_FLAG_GROUP_ABSOLUTE)
action->group.flags |= ACTION_ABSOLUTE_SWITCH;
break;
case XCB_XKB_SA_TYPE_LOCK_GROUP:
action->type = ACTION_TYPE_GROUP_LOCK;
action->group.group = wire->lockgroup.group;
if (wire->lockgroup.flags & XCB_XKB_SA_ISO_LOCK_FLAG_GROUP_ABSOLUTE)
action->group.flags |= ACTION_ABSOLUTE_SWITCH;
break;
case XCB_XKB_SA_TYPE_MOVE_PTR:
action->type = ACTION_TYPE_PTR_MOVE;
action->ptr.x = (int16_t) (wire->moveptr.xLow | ((uint16_t) wire->moveptr.xHigh << 8));
action->ptr.y = (int16_t) (wire->moveptr.yLow | ((uint16_t) wire->moveptr.yHigh << 8));
if (!(wire->moveptr.flags & XCB_XKB_SA_MOVE_PTR_FLAG_NO_ACCELERATION))
action->ptr.flags |= ACTION_ACCEL;
if (wire->moveptr.flags & XCB_XKB_SA_MOVE_PTR_FLAG_MOVE_ABSOLUTE_X)
action->ptr.flags |= ACTION_ABSOLUTE_X;
if (wire->moveptr.flags & XCB_XKB_SA_MOVE_PTR_FLAG_MOVE_ABSOLUTE_Y)
action->ptr.flags |= ACTION_ABSOLUTE_Y;
break;
case XCB_XKB_SA_TYPE_PTR_BTN:
action->type = ACTION_TYPE_PTR_BUTTON;
action->btn.count = wire->ptrbtn.count;
action->btn.button = wire->ptrbtn.button;
action->btn.flags = 0;
break;
case XCB_XKB_SA_TYPE_LOCK_PTR_BTN:
action->type = ACTION_TYPE_PTR_LOCK;
action->btn.button = wire->lockptrbtn.button;
if (wire->lockptrbtn.flags & XCB_XKB_SA_ISO_LOCK_FLAG_NO_LOCK)
action->btn.flags |= ACTION_LOCK_NO_LOCK;
if (wire->lockptrbtn.flags & XCB_XKB_SA_ISO_LOCK_FLAG_NO_UNLOCK)
action->btn.flags |= ACTION_LOCK_NO_UNLOCK;
break;
case XCB_XKB_SA_TYPE_SET_PTR_DFLT:
action->type = ACTION_TYPE_PTR_DEFAULT;
action->dflt.value = wire->setptrdflt.value;
if (wire->setptrdflt.flags & XCB_XKB_SA_SET_PTR_DFLT_FLAG_DFLT_BTN_ABSOLUTE)
action->dflt.flags |= ACTION_ABSOLUTE_SWITCH;
break;
case XCB_XKB_SA_TYPE_TERMINATE:
action->type = ACTION_TYPE_TERMINATE;
break;
case XCB_XKB_SA_TYPE_SWITCH_SCREEN:
action->type = ACTION_TYPE_SWITCH_VT;
action->screen.screen = wire->switchscreen.newScreen;
if (!(wire->switchscreen.flags & XCB_XKB_SWITCH_SCREEN_FLAG_APPLICATION))
action->screen.flags |= ACTION_SAME_SCREEN;
if (wire->switchscreen.flags & XCB_XKB_SWITCH_SCREEN_FLAG_ABSOLUTE)
action->screen.flags |= ACTION_ABSOLUTE_SWITCH;
break;
case XCB_XKB_SA_TYPE_SET_CONTROLS:
action->type = ACTION_TYPE_CTRL_SET;
{
const uint16_t mask = (wire->setcontrols.boolCtrlsLow |
(wire->setcontrols.boolCtrlsHigh << 8));
action->ctrls.ctrls = translate_controls_mask(mask);
}
break;
case XCB_XKB_SA_TYPE_LOCK_CONTROLS:
action->type = ACTION_TYPE_CTRL_LOCK;
{
const uint16_t mask = (wire->lockcontrols.boolCtrlsLow |
(wire->lockcontrols.boolCtrlsHigh << 8));
action->ctrls.ctrls = translate_controls_mask(mask);
}
break;
case XCB_XKB_SA_TYPE_NO_ACTION:
/* We don't support these. */
case XCB_XKB_SA_TYPE_ISO_LOCK:
case XCB_XKB_SA_TYPE_REDIRECT_KEY:
case XCB_XKB_SA_TYPE_ACTION_MESSAGE:
case XCB_XKB_SA_TYPE_DEVICE_BTN:
case XCB_XKB_SA_TYPE_LOCK_DEVICE_BTN:
case XCB_XKB_SA_TYPE_DEVICE_VALUATOR:
action->type = ACTION_TYPE_NONE;
break;
default:
if (wire->type < ACTION_TYPE_PRIVATE) {
action->type = ACTION_TYPE_NONE;
break;
}
/* Treat high unknown actions as Private actions. */
action->priv.type = wire->noaction.type;
STATIC_ASSERT(sizeof(action->priv.data) == 7 &&
sizeof(wire->noaction.pad0) == 7,
"The private action data must be 7 bytes long!");
memcpy(action->priv.data, wire->noaction.pad0, 7);
break;
}
}
static bool
get_types(struct xkb_keymap *keymap, xcb_connection_t *conn,
xcb_xkb_get_map_reply_t *reply, xcb_xkb_get_map_map_t *map)
{
int types_length = xcb_xkb_get_map_map_types_rtrn_length(reply, map);
xcb_xkb_key_type_iterator_t types_iter =
xcb_xkb_get_map_map_types_rtrn_iterator(reply, map);
FAIL_UNLESS(reply->firstType == 0);
keymap->num_types = reply->nTypes;
ALLOC_OR_FAIL(keymap->types, keymap->num_types);
for (int i = 0; i < types_length; i++) {
xcb_xkb_key_type_t *wire_type = types_iter.data;
struct xkb_key_type *type = &keymap->types[i];
FAIL_UNLESS(wire_type->numLevels > 0);
type->mods.mods = translate_mods(wire_type->mods_mods,
wire_type->mods_vmods, 0);
type->mods.mask = translate_mods(wire_type->mods_mask, 0, 0);
type->num_levels = wire_type->numLevels;
{
int entries_length = xcb_xkb_key_type_map_length(wire_type);
xcb_xkb_kt_map_entry_iterator_t entries_iter =
xcb_xkb_key_type_map_iterator(wire_type);
type->num_entries = wire_type->nMapEntries;
ALLOC_OR_FAIL(type->entries, type->num_entries);
for (int j = 0; j < entries_length; j++) {
xcb_xkb_kt_map_entry_t *wire_entry = entries_iter.data;
struct xkb_key_type_entry *entry = &type->entries[j];
FAIL_UNLESS(wire_entry->level < type->num_levels);
entry->level = wire_entry->level;
entry->mods.mods = translate_mods(wire_entry->mods_mods,
wire_entry->mods_vmods, 0);
entry->mods.mask = translate_mods(wire_entry->mods_mask, 0, 0);
xcb_xkb_kt_map_entry_next(&entries_iter);
}
}
{
int preserves_length = xcb_xkb_key_type_preserve_length(wire_type);
xcb_xkb_mod_def_iterator_t preserves_iter =
xcb_xkb_key_type_preserve_iterator(wire_type);
FAIL_UNLESS((unsigned) preserves_length <= type->num_entries);
for (int j = 0; j < preserves_length; j++) {
xcb_xkb_mod_def_t *wire_preserve = preserves_iter.data;
struct xkb_key_type_entry *entry = &type->entries[j];
entry->preserve.mods = translate_mods(wire_preserve->realMods,
wire_preserve->vmods, 0);
entry->preserve.mask = translate_mods(wire_preserve->mask, 0, 0);
xcb_xkb_mod_def_next(&preserves_iter);
}
}
xcb_xkb_key_type_next(&types_iter);
}
return true;
fail:
return false;
}
static bool
get_sym_maps(struct xkb_keymap *keymap, xcb_connection_t *conn,
xcb_xkb_get_map_reply_t *reply, xcb_xkb_get_map_map_t *map)
{
int sym_maps_length = xcb_xkb_get_map_map_syms_rtrn_length(reply, map);
xcb_xkb_key_sym_map_iterator_t sym_maps_iter =
xcb_xkb_get_map_map_syms_rtrn_iterator(reply, map);
FAIL_UNLESS(reply->minKeyCode <= reply->maxKeyCode);
FAIL_UNLESS(reply->firstKeySym >= reply->minKeyCode);
FAIL_UNLESS(reply->firstKeySym + reply->nKeySyms <= reply->maxKeyCode + 1);
keymap->min_key_code = reply->minKeyCode;
keymap->max_key_code = reply->maxKeyCode;
ALLOC_OR_FAIL(keymap->keys, keymap->max_key_code + 1);
for (xkb_keycode_t kc = keymap->min_key_code; kc <= keymap->max_key_code; kc++)
keymap->keys[kc].keycode = kc;
for (int i = 0; i < sym_maps_length; i++) {
xcb_xkb_key_sym_map_t *wire_sym_map = sym_maps_iter.data;
struct xkb_key *key = &keymap->keys[reply->firstKeySym + i];
key->num_groups = wire_sym_map->groupInfo & 0x0f;
FAIL_UNLESS(key->num_groups <= ARRAY_SIZE(wire_sym_map->kt_index));
ALLOC_OR_FAIL(key->groups, key->num_groups);
for (unsigned j = 0; j < key->num_groups; j++) {
FAIL_UNLESS(wire_sym_map->kt_index[j] < keymap->num_types);
key->groups[j].type = &keymap->types[wire_sym_map->kt_index[j]];
ALLOC_OR_FAIL(key->groups[j].levels, key->groups[j].type->num_levels);
}
key->out_of_range_group_number = (wire_sym_map->groupInfo & 0x30) >> 4;
FAIL_UNLESS(key->out_of_range_group_number <= key->num_groups);
if (wire_sym_map->groupInfo & XCB_XKB_GROUPS_WRAP_CLAMP_INTO_RANGE)
key->out_of_range_group_action = RANGE_SATURATE;
else if (wire_sym_map->groupInfo & XCB_XKB_GROUPS_WRAP_REDIRECT_INTO_RANGE)
key->out_of_range_group_action = RANGE_REDIRECT;
else
key->out_of_range_group_action = RANGE_WRAP;
{
int syms_length = xcb_xkb_key_sym_map_syms_length(wire_sym_map);
xcb_keysym_t *syms_iter = xcb_xkb_key_sym_map_syms(wire_sym_map);
FAIL_UNLESS((unsigned) syms_length == wire_sym_map->width * key->num_groups);
for (xkb_layout_index_t group = 0; group < key->num_groups; group++) {
for (xkb_level_index_t level = 0; level < wire_sym_map->width; level++) {
xcb_keysym_t wire_keysym = *syms_iter;
assert(key->groups[group].type != NULL);
if (level < key->groups[group].type->num_levels &&
wire_keysym != XKB_KEY_NoSymbol) {
key->groups[group].levels[level].num_syms = 1;
key->groups[group].levels[level].u.sym = wire_keysym;
}
syms_iter++;
}
}
}
xcb_xkb_key_sym_map_next(&sym_maps_iter);
}
return true;
fail:
return false;
}
static bool
get_actions(struct xkb_keymap *keymap, xcb_connection_t *conn,
xcb_xkb_get_map_reply_t *reply, xcb_xkb_get_map_map_t *map)
{
int acts_count_length =
xcb_xkb_get_map_map_acts_rtrn_count_length(reply, map);
uint8_t *acts_count_iter = xcb_xkb_get_map_map_acts_rtrn_count(map);
xcb_xkb_action_iterator_t acts_iter =
xcb_xkb_get_map_map_acts_rtrn_acts_iterator(reply, map);
xcb_xkb_key_sym_map_iterator_t sym_maps_iter =
xcb_xkb_get_map_map_syms_rtrn_iterator(reply, map);
FAIL_UNLESS(reply->firstKeyAction == keymap->min_key_code);
FAIL_UNLESS(reply->firstKeyAction + reply->nKeyActions ==
keymap->max_key_code + 1);
for (int i = 0; i < acts_count_length; i++) {
xcb_xkb_key_sym_map_t *wire_sym_map = sym_maps_iter.data;
int syms_length = xcb_xkb_key_sym_map_syms_length(wire_sym_map);
uint8_t wire_count = *acts_count_iter;
struct xkb_key *key = &keymap->keys[reply->firstKeyAction + i];
FAIL_UNLESS((unsigned) syms_length == wire_sym_map->width * key->num_groups);
FAIL_UNLESS(wire_count == 0 || wire_count == syms_length);
if (wire_count != 0) {
for (xkb_layout_index_t group = 0; group < key->num_groups; group++) {
for (xkb_level_index_t level = 0; level < wire_sym_map->width; level++) {
xcb_xkb_action_t *wire_action = acts_iter.data;
if (level < key->groups[group].type->num_levels) {
union xkb_action *action = &key->groups[group].levels[level].action;
translate_action(action, wire_action);
}
xcb_xkb_action_next(&acts_iter);
}
}
}
acts_count_iter++;
xcb_xkb_key_sym_map_next(&sym_maps_iter);
}
return true;
fail:
return false;
}
static bool
get_vmods(struct xkb_keymap *keymap, xcb_connection_t *conn,
xcb_xkb_get_map_reply_t *reply, xcb_xkb_get_map_map_t *map)
{
uint8_t *iter = xcb_xkb_get_map_map_vmods_rtrn(map);
keymap->mods.num_mods =
NUM_REAL_MODS + MIN(msb_pos(reply->virtualMods), NUM_VMODS);
for (unsigned i = 0; i < NUM_VMODS; i++) {
if (reply->virtualMods & (1u << i)) {
uint8_t wire = *iter;
struct xkb_mod *mod = &keymap->mods.mods[NUM_REAL_MODS + i];
mod->type = MOD_VIRT;
mod->mapping = translate_mods(wire, 0, 0);
iter++;
}
}
return true;
}
static bool
get_explicits(struct xkb_keymap *keymap, xcb_connection_t *conn,
xcb_xkb_get_map_reply_t *reply, xcb_xkb_get_map_map_t *map)
{
int length = xcb_xkb_get_map_map_explicit_rtrn_length(reply, map);
xcb_xkb_set_explicit_iterator_t iter =
xcb_xkb_get_map_map_explicit_rtrn_iterator(reply, map);
for (int i = 0; i < length; i++) {
xcb_xkb_set_explicit_t *wire = iter.data;
struct xkb_key *key;
FAIL_UNLESS(wire->keycode >= keymap->min_key_code &&
wire->keycode <= keymap->max_key_code);
key = &keymap->keys[wire->keycode];
if ((wire->explicit & XCB_XKB_EXPLICIT_KEY_TYPE_1) &&
key->num_groups > 0)
key->groups[0].explicit_type = true;
if ((wire->explicit & XCB_XKB_EXPLICIT_KEY_TYPE_2) &&
key->num_groups > 1)
key->groups[1].explicit_type = true;
if ((wire->explicit & XCB_XKB_EXPLICIT_KEY_TYPE_3) &&
key->num_groups > 2)
key->groups[2].explicit_type = true;
if ((wire->explicit & XCB_XKB_EXPLICIT_KEY_TYPE_4) &&
key->num_groups > 3)
key->groups[3].explicit_type = true;
if (wire->explicit & XCB_XKB_EXPLICIT_INTERPRET)
key->explicit |= EXPLICIT_INTERP;
if (wire->explicit & XCB_XKB_EXPLICIT_AUTO_REPEAT)
key->explicit |= EXPLICIT_REPEAT;
if (wire->explicit & XCB_XKB_EXPLICIT_V_MOD_MAP)
key->explicit |= EXPLICIT_VMODMAP;
xcb_xkb_set_explicit_next(&iter);
}
return true;
fail:
return false;
}
static bool
get_modmaps(struct xkb_keymap *keymap, xcb_connection_t *conn,
xcb_xkb_get_map_reply_t *reply, xcb_xkb_get_map_map_t *map)
{
int length = xcb_xkb_get_map_map_modmap_rtrn_length(reply, map);
xcb_xkb_key_mod_map_iterator_t iter =
xcb_xkb_get_map_map_modmap_rtrn_iterator(reply, map);
for (int i = 0; i < length; i++) {
xcb_xkb_key_mod_map_t *wire = iter.data;
struct xkb_key *key;
FAIL_UNLESS(wire->keycode >= keymap->min_key_code &&
wire->keycode <= keymap->max_key_code);
key = &keymap->keys[wire->keycode];
key->modmap = wire->mods;
xcb_xkb_key_mod_map_next(&iter);
}
return true;
fail:
return false;
}
static bool
get_vmodmaps(struct xkb_keymap *keymap, xcb_connection_t *conn,
xcb_xkb_get_map_reply_t *reply, xcb_xkb_get_map_map_t *map)
{
int length = xcb_xkb_get_map_map_vmodmap_rtrn_length(reply, map);
xcb_xkb_key_v_mod_map_iterator_t iter =
xcb_xkb_get_map_map_vmodmap_rtrn_iterator(reply, map);
for (int i = 0; i < length; i++) {
xcb_xkb_key_v_mod_map_t *wire = iter.data;
struct xkb_key *key;
FAIL_UNLESS(wire->keycode >= keymap->min_key_code &&
wire->keycode <= keymap->max_key_code);
key = &keymap->keys[wire->keycode];
key->vmodmap = translate_mods(0, wire->vmods, 0);
xcb_xkb_key_v_mod_map_next(&iter);
}
return true;
fail:
return false;
}
static bool
get_map(struct xkb_keymap *keymap, xcb_connection_t *conn,
xcb_xkb_get_map_cookie_t cookie)
{
xcb_xkb_get_map_reply_t *reply = xcb_xkb_get_map_reply(conn, cookie, NULL);
xcb_xkb_get_map_map_t map;
FAIL_IF_BAD_REPLY(reply, "XkbGetMap");
if ((reply->present & get_map_required_components) != get_map_required_components)
goto fail;
xcb_xkb_get_map_map_unpack(xcb_xkb_get_map_map(reply),
reply->nTypes,
reply->nKeySyms,
reply->nKeyActions,
reply->totalActions,
reply->totalKeyBehaviors,
reply->virtualMods,
reply->totalKeyExplicit,
reply->totalModMapKeys,
reply->totalVModMapKeys,
reply->present,
&map);
if (!get_types(keymap, conn, reply, &map) ||
!get_sym_maps(keymap, conn, reply, &map) ||
!get_actions(keymap, conn, reply, &map) ||
!get_vmods(keymap, conn, reply, &map) ||
!get_explicits(keymap, conn, reply, &map) ||
!get_modmaps(keymap, conn, reply, &map) ||
!get_vmodmaps(keymap, conn, reply, &map))
goto fail;
free(reply);
return true;
fail:
free(reply);
return false;
}
static bool
get_indicators(struct xkb_keymap *keymap, xcb_connection_t *conn,
xcb_xkb_get_indicator_map_reply_t *reply)
{
xcb_xkb_indicator_map_iterator_t iter =
xcb_xkb_get_indicator_map_maps_iterator(reply);
keymap->num_leds = msb_pos(reply->which);
for (unsigned i = 0; i < NUM_INDICATORS; i++) {
if (reply->which & (1u << i)) {
xcb_xkb_indicator_map_t *wire = iter.data;
struct xkb_led *led = &keymap->leds[i];
if (wire->whichGroups & XCB_XKB_IM_GROUPS_WHICH_USE_BASE)
led->which_groups |= XKB_STATE_LAYOUT_DEPRESSED;
if (wire->whichGroups & XCB_XKB_IM_GROUPS_WHICH_USE_LATCHED)
led->which_groups |= XKB_STATE_LAYOUT_LATCHED;
if (wire->whichGroups & XCB_XKB_IM_GROUPS_WHICH_USE_LOCKED)
led->which_groups |= XKB_STATE_LAYOUT_LOCKED;
if (wire->whichGroups & XCB_XKB_IM_GROUPS_WHICH_USE_EFFECTIVE)
led->which_groups |= XKB_STATE_LAYOUT_EFFECTIVE;
if (wire->whichGroups & XCB_XKB_IM_GROUPS_WHICH_USE_COMPAT)
led->which_groups |= XKB_STATE_LAYOUT_EFFECTIVE;
led->groups = wire->groups;
if (wire->whichMods & XCB_XKB_IM_MODS_WHICH_USE_BASE)
led->which_mods |= XKB_STATE_MODS_DEPRESSED;
if (wire->whichMods & XCB_XKB_IM_MODS_WHICH_USE_LATCHED)
led->which_mods |= XKB_STATE_MODS_LATCHED;
if (wire->whichMods & XCB_XKB_IM_MODS_WHICH_USE_LOCKED)
led->which_mods |= XKB_STATE_MODS_LOCKED;
if (wire->whichMods & XCB_XKB_IM_MODS_WHICH_USE_EFFECTIVE)
led->which_mods |= XKB_STATE_MODS_EFFECTIVE;
if (wire->whichMods & XCB_XKB_IM_MODS_WHICH_USE_COMPAT)
led->which_mods |= XKB_STATE_MODS_EFFECTIVE;
led->mods.mods = translate_mods(wire->realMods, wire->vmods, 0);
led->mods.mask = translate_mods(wire->mods, 0, 0);
led->ctrls = translate_controls_mask(wire->ctrls);
xcb_xkb_indicator_map_next(&iter);
}
}
return true;
}
static bool
get_indicator_map(struct xkb_keymap *keymap, xcb_connection_t *conn,
xcb_xkb_get_indicator_map_cookie_t cookie)
{
xcb_xkb_get_indicator_map_reply_t *reply =
xcb_xkb_get_indicator_map_reply(conn, cookie, NULL);
FAIL_IF_BAD_REPLY(reply, "XkbGetIndicatorMap");
if (!get_indicators(keymap, conn, reply))
goto fail;
free(reply);
return true;
fail:
free(reply);
return false;
}
static bool
get_sym_interprets(struct xkb_keymap *keymap, xcb_connection_t *conn,
xcb_xkb_get_compat_map_reply_t *reply)
{
int length = xcb_xkb_get_compat_map_si_rtrn_length(reply);
xcb_xkb_sym_interpret_iterator_t iter =
xcb_xkb_get_compat_map_si_rtrn_iterator(reply);
FAIL_UNLESS(reply->firstSIRtrn == 0);
FAIL_UNLESS(reply->nSIRtrn == reply->nTotalSI);
keymap->num_sym_interprets = reply->nSIRtrn;
ALLOC_OR_FAIL(keymap->sym_interprets, keymap->num_sym_interprets);
for (int i = 0; i < length; i++) {
xcb_xkb_sym_interpret_t *wire = iter.data;
struct xkb_sym_interpret *sym_interpret = &keymap->sym_interprets[i];
sym_interpret->sym = wire->sym;
switch (wire->match & XCB_XKB_SYM_INTERP_MATCH_OP_MASK) {
case XCB_XKB_SYM_INTERPRET_MATCH_NONE_OF:
sym_interpret->match = MATCH_NONE;
break;
case XCB_XKB_SYM_INTERPRET_MATCH_ANY_OF_OR_NONE:
sym_interpret->match = MATCH_ANY_OR_NONE;
break;
case XCB_XKB_SYM_INTERPRET_MATCH_ANY_OF:
sym_interpret->match = MATCH_ANY;
break;
case XCB_XKB_SYM_INTERPRET_MATCH_ALL_OF:
sym_interpret->match = MATCH_ALL;
break;
case XCB_XKB_SYM_INTERPRET_MATCH_EXACTLY:
sym_interpret->match = MATCH_EXACTLY;
break;
}
sym_interpret->level_one_only =
(wire->match & XCB_XKB_SYM_INTERP_MATCH_LEVEL_ONE_ONLY);
sym_interpret->mods = wire->mods;
if (wire->virtualMod == NO_MODIFIER)
sym_interpret->virtual_mod = XKB_MOD_INVALID;
else
sym_interpret->virtual_mod = NUM_REAL_MODS + wire->virtualMod;
sym_interpret->repeat = (wire->flags & 0x01);
translate_action(&sym_interpret->action,
(xcb_xkb_action_t *) &wire->action);
xcb_xkb_sym_interpret_next(&iter);
}
return true;
fail:
return false;
}
static bool
get_compat_map(struct xkb_keymap *keymap, xcb_connection_t *conn,
xcb_xkb_get_compat_map_cookie_t cookie)
{
xcb_xkb_get_compat_map_reply_t *reply =
xcb_xkb_get_compat_map_reply(conn, cookie, NULL);
FAIL_IF_BAD_REPLY(reply, "XkbGetCompatMap");
if (!get_sym_interprets(keymap, conn, reply))
goto fail;
free(reply);
return true;
fail:
free(reply);
return false;
}
static bool
get_type_names(struct xkb_keymap *keymap, struct x11_atom_interner *interner,
xcb_xkb_get_names_reply_t *reply,
xcb_xkb_get_names_value_list_t *list)
{
int key_type_names_length =
xcb_xkb_get_names_value_list_type_names_length(reply, list);
xcb_atom_t *key_type_names_iter =
xcb_xkb_get_names_value_list_type_names(list);
int n_levels_per_type_length =
xcb_xkb_get_names_value_list_n_levels_per_type_length(reply, list);
uint8_t *n_levels_per_type_iter =
xcb_xkb_get_names_value_list_n_levels_per_type(list);
xcb_atom_t *kt_level_names_iter =
xcb_xkb_get_names_value_list_kt_level_names(list);
FAIL_UNLESS(reply->nTypes == keymap->num_types);
FAIL_UNLESS(key_type_names_length == n_levels_per_type_length);
for (int i = 0; i < key_type_names_length; i++) {
xcb_atom_t wire_type_name = *key_type_names_iter;
uint8_t wire_num_levels = *n_levels_per_type_iter;
struct xkb_key_type *type = &keymap->types[i];
/* Levels must have names. */
FAIL_UNLESS(type->num_levels == wire_num_levels);
ALLOC_OR_FAIL(type->level_names, type->num_levels);
x11_atom_interner_adopt_atom(interner, wire_type_name, &type->name);
for (size_t j = 0; j < wire_num_levels; j++) {
x11_atom_interner_adopt_atom(interner, kt_level_names_iter[j],
&type->level_names[j]);
}
type->num_level_names = type->num_levels;
kt_level_names_iter += wire_num_levels;
key_type_names_iter++;
n_levels_per_type_iter++;
}
return true;
fail:
return false;
}
static bool
get_indicator_names(struct xkb_keymap *keymap,
struct x11_atom_interner *interner,
xcb_xkb_get_names_reply_t *reply,
xcb_xkb_get_names_value_list_t *list)
{
xcb_atom_t *iter = xcb_xkb_get_names_value_list_indicator_names(list);
FAIL_UNLESS(msb_pos(reply->indicators) <= keymap->num_leds);
for (unsigned i = 0; i < NUM_INDICATORS; i++) {
if (reply->indicators & (1u << i)) {
xcb_atom_t wire = *iter;
struct xkb_led *led = &keymap->leds[i];
x11_atom_interner_adopt_atom(interner, wire, &led->name);
iter++;
}
}
return true;
fail:
return false;
}
static bool
get_vmod_names(struct xkb_keymap *keymap, struct x11_atom_interner *interner,
xcb_xkb_get_names_reply_t *reply,
xcb_xkb_get_names_value_list_t *list)
{
xcb_atom_t *iter = xcb_xkb_get_names_value_list_virtual_mod_names(list);
/*
* GetMap's reply->virtualMods is always 0xffff. This one really
* tells us which vmods exist (a vmod must have a name), so we fix
* up the size here.
*/
keymap->mods.num_mods =
NUM_REAL_MODS + MIN(msb_pos(reply->virtualMods), NUM_VMODS);
for (unsigned i = 0; i < NUM_VMODS; i++) {
if (reply->virtualMods & (1u << i)) {
xcb_atom_t wire = *iter;
struct xkb_mod *mod = &keymap->mods.mods[NUM_REAL_MODS + i];
x11_atom_interner_adopt_atom(interner, wire, &mod->name);
iter++;
}
}
return true;
}
static bool
get_group_names(struct xkb_keymap *keymap, struct x11_atom_interner *interner,
xcb_xkb_get_names_reply_t *reply,
xcb_xkb_get_names_value_list_t *list)
{
int length = xcb_xkb_get_names_value_list_groups_length(reply, list);
xcb_atom_t *iter = xcb_xkb_get_names_value_list_groups(list);
keymap->num_group_names = msb_pos(reply->groupNames);
ALLOC_OR_FAIL(keymap->group_names, keymap->num_group_names);
for (int i = 0; i < length; i++) {
x11_atom_interner_adopt_atom(interner, iter[i],
&keymap->group_names[i]);
}
return true;
fail:
return false;
}
static bool
get_key_names(struct xkb_keymap *keymap, xcb_connection_t *conn,
xcb_xkb_get_names_reply_t *reply,
xcb_xkb_get_names_value_list_t *list)
{
int length = xcb_xkb_get_names_value_list_key_names_length(reply, list);
xcb_xkb_key_name_iterator_t iter =
xcb_xkb_get_names_value_list_key_names_iterator(reply, list);
FAIL_UNLESS(reply->minKeyCode == keymap->min_key_code);
FAIL_UNLESS(reply->maxKeyCode == keymap->max_key_code);
FAIL_UNLESS(reply->firstKey == keymap->min_key_code);
FAIL_UNLESS(reply->firstKey + reply->nKeys - 1U == keymap->max_key_code);
for (int i = 0; i < length; i++) {
xcb_xkb_key_name_t *wire = iter.data;
xkb_atom_t *key_name = &keymap->keys[reply->firstKey + i].name;
if (wire->name[0] == '\0') {
*key_name = XKB_ATOM_NONE;
}
else {
*key_name = xkb_atom_intern(keymap->ctx, wire->name,
strnlen(wire->name,
XCB_XKB_CONST_KEY_NAME_LENGTH));
if (!*key_name)
return false;
}
xcb_xkb_key_name_next(&iter);
}
return true;
fail:
return false;
}
static bool
get_aliases(struct xkb_keymap *keymap, xcb_connection_t *conn,
xcb_xkb_get_names_reply_t *reply,
xcb_xkb_get_names_value_list_t *list)
{
int length = xcb_xkb_get_names_value_list_key_aliases_length(reply, list);
xcb_xkb_key_alias_iterator_t iter =
xcb_xkb_get_names_value_list_key_aliases_iterator(reply, list);
keymap->num_key_aliases = reply->nKeyAliases;
ALLOC_OR_FAIL(keymap->key_aliases, keymap->num_key_aliases);
for (int i = 0; i < length; i++) {
xcb_xkb_key_alias_t *wire = iter.data;
struct xkb_key_alias *alias = &keymap->key_aliases[i];
alias->real =
xkb_atom_intern(keymap->ctx, wire->real,
strnlen(wire->real, XCB_XKB_CONST_KEY_NAME_LENGTH));
alias->alias =
xkb_atom_intern(keymap->ctx, wire->alias,
strnlen(wire->alias, XCB_XKB_CONST_KEY_NAME_LENGTH));
if (!alias->real || !alias->alias)
goto fail;
xcb_xkb_key_alias_next(&iter);
}
return true;
fail:
return false;
}
static bool
get_names(struct xkb_keymap *keymap, struct x11_atom_interner *interner,
xcb_xkb_get_names_cookie_t cookie)
{
xcb_connection_t *conn = interner->conn;
xcb_xkb_get_names_reply_t *reply =
xcb_xkb_get_names_reply(conn, cookie, NULL);
xcb_xkb_get_names_value_list_t list;
FAIL_IF_BAD_REPLY(reply, "XkbGetNames");
FAIL_UNLESS((reply->which & get_names_required) == get_names_required);
xcb_xkb_get_names_value_list_unpack(xcb_xkb_get_names_value_list(reply),
reply->nTypes,
reply->indicators,
reply->virtualMods,
reply->groupNames,
reply->nKeys,
reply->nKeyAliases,
reply->nRadioGroups,
reply->which,
&list);
x11_atom_interner_get_escaped_atom_name(interner, list.keycodesName,
&keymap->keycodes_section_name);
x11_atom_interner_get_escaped_atom_name(interner, list.symbolsName,
&keymap->symbols_section_name);
x11_atom_interner_get_escaped_atom_name(interner, list.typesName,
&keymap->types_section_name);
x11_atom_interner_get_escaped_atom_name(interner, list.compatName,
&keymap->compat_section_name);
if (!get_type_names(keymap, interner, reply, &list) ||
!get_indicator_names(keymap, interner, reply, &list) ||
!get_vmod_names(keymap, interner, reply, &list) ||
!get_group_names(keymap, interner, reply, &list) ||
!get_key_names(keymap, conn, reply, &list) ||
!get_aliases(keymap, conn, reply, &list))
goto fail;
free(reply);
return true;
fail:
free(reply);
return false;
}
static bool
get_controls(struct xkb_keymap *keymap, xcb_connection_t *conn,
xcb_xkb_get_controls_cookie_t cookie)
{
xcb_xkb_get_controls_reply_t *reply =
xcb_xkb_get_controls_reply(conn, cookie, NULL);
FAIL_IF_BAD_REPLY(reply, "XkbGetControls");
FAIL_UNLESS(reply->numGroups > 0 && reply->numGroups <= 4);
keymap->enabled_ctrls = translate_controls_mask(reply->enabledControls);
keymap->num_groups = reply->numGroups;
FAIL_UNLESS(keymap->max_key_code < XCB_XKB_CONST_PER_KEY_BIT_ARRAY_SIZE * 8);
for (xkb_keycode_t i = keymap->min_key_code; i <= keymap->max_key_code; i++)
keymap->keys[i].repeats = (reply->perKeyRepeat[i / 8] & (1 << (i % 8)));
free(reply);
return true;
fail:
free(reply);
return false;
}
XKB_EXPORT struct xkb_keymap *
xkb_x11_keymap_new_from_device(struct xkb_context *ctx,
xcb_connection_t *conn,
int32_t device_id,
enum xkb_keymap_compile_flags flags)
{
struct xkb_keymap *keymap;
const enum xkb_keymap_format format = XKB_KEYMAP_FORMAT_TEXT_V1;
if (flags & ~(XKB_KEYMAP_COMPILE_NO_FLAGS)) {
log_err_func(ctx, "unrecognized flags: %#x\n", flags);
return NULL;
}
if (device_id < 0 || device_id > 127) {
log_err_func(ctx, "illegal device ID: %d\n", device_id);
return NULL;
}
keymap = xkb_keymap_new(ctx, format, flags);
if (!keymap)
return NULL;
struct x11_atom_interner interner;
x11_atom_interner_init(&interner, ctx, conn);
xcb_xkb_get_map_cookie_t get_map_cookie =
xcb_xkb_get_map(conn, device_id, get_map_required_components,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
xcb_xkb_get_indicator_map_cookie_t indicator_map_cookie =
xcb_xkb_get_indicator_map(conn, device_id, ALL_INDICATORS_MASK);
xcb_xkb_get_compat_map_cookie_t compat_map_cookie =
xcb_xkb_get_compat_map(conn, device_id, 0, true, 0, 0);
xcb_xkb_get_names_cookie_t get_names_cookie =
xcb_xkb_get_names(conn, device_id, get_names_wanted);
xcb_xkb_get_controls_cookie_t get_controls_cookie =
xcb_xkb_get_controls(conn, device_id);
bool had_error = false;
had_error |= !get_map(keymap, conn, get_map_cookie);
had_error |= !get_indicator_map(keymap, conn, indicator_map_cookie);
had_error |= !get_compat_map(keymap, conn, compat_map_cookie);
had_error |= !get_names(keymap, &interner, get_names_cookie);
had_error |= !get_controls(keymap, conn, get_controls_cookie);
x11_atom_interner_round_trip(&interner);
had_error |= interner.had_error;
if (had_error) {
xkb_keymap_unref(keymap);
return NULL;
}
return keymap;
}
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