1 /************************************************************
2 * Copyright (c) 1994 by Silicon Graphics Computer Systems, Inc.
4 * Permission to use, copy, modify, and distribute this
5 * software and its documentation for any purpose and without
6 * fee is hereby granted, provided that the above copyright
7 * notice appear in all copies and that both that copyright
8 * notice and this permission notice appear in supporting
9 * documentation, and that the name of Silicon Graphics not be
10 * used in advertising or publicity pertaining to distribution
11 * of the software without specific prior written permission.
12 * Silicon Graphics makes no representation about the suitability
13 * of this software for any purpose. It is provided "as is"
14 * without any express or implied warranty.
16 * SILICON GRAPHICS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS
17 * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
18 * AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL SILICON
19 * GRAPHICS BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL
20 * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
21 * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
22 * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH
23 * THE USE OR PERFORMANCE OF THIS SOFTWARE.
25 ********************************************************/
28 * Copyright © 2012 Intel Corporation
29 * Copyright © 2012 Ran Benita <ran234@gmail.com>
31 * Permission is hereby granted, free of charge, to any person obtaining a
32 * copy of this software and associated documentation files (the "Software"),
33 * to deal in the Software without restriction, including without limitation
34 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
35 * and/or sell copies of the Software, and to permit persons to whom the
36 * Software is furnished to do so, subject to the following conditions:
38 * The above copyright notice and this permission notice (including the next
39 * paragraph) shall be included in all copies or substantial portions of the
42 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
43 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
44 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
45 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
46 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
47 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
48 * DEALINGS IN THE SOFTWARE.
50 * Author: Daniel Stone <daniel@fooishbar.org>
51 * Ran Benita <ran234@gmail.com>
54 #include "xkbcomp-priv.h"
59 static const ExprBoolean constTrue = {
61 .common = { .type = STMT_EXPR, .next = NULL },
63 .value_type = EXPR_TYPE_BOOLEAN,
68 static const ExprBoolean constFalse = {
70 .common = { .type = STMT_EXPR, .next = NULL },
72 .value_type = EXPR_TYPE_BOOLEAN,
78 ACTION_FIELD_CLEAR_LOCKS,
79 ACTION_FIELD_LATCH_TO_LOCK,
80 ACTION_FIELD_GEN_KEY_EVENT,
84 ACTION_FIELD_INCREMENT,
85 ACTION_FIELD_MODIFIERS,
92 ACTION_FIELD_CONTROLS,
100 ACTION_FIELD_MODS_TO_CLEAR,
109 info = calloc(1, sizeof(*info));
113 for (type = 0; type < _ACTION_TYPE_NUM_ENTRIES; type++)
114 info->actions[type].type = type;
116 /* Apply some "factory defaults". */
118 /* Increment default button. */
119 info->actions[ACTION_TYPE_PTR_DEFAULT].dflt.flags = 0;
120 info->actions[ACTION_TYPE_PTR_DEFAULT].dflt.value = 1;
126 FreeActionsInfo(ActionsInfo *info)
131 static const LookupEntry fieldStrings[] = {
132 { "clearLocks", ACTION_FIELD_CLEAR_LOCKS },
133 { "latchToLock", ACTION_FIELD_LATCH_TO_LOCK },
134 { "genKeyEvent", ACTION_FIELD_GEN_KEY_EVENT },
135 { "generateKeyEvent", ACTION_FIELD_GEN_KEY_EVENT },
136 { "report", ACTION_FIELD_REPORT },
137 { "default", ACTION_FIELD_DEFAULT },
138 { "affect", ACTION_FIELD_AFFECT },
139 { "increment", ACTION_FIELD_INCREMENT },
140 { "modifiers", ACTION_FIELD_MODIFIERS },
141 { "mods", ACTION_FIELD_MODIFIERS },
142 { "group", ACTION_FIELD_GROUP },
143 { "x", ACTION_FIELD_X },
144 { "y", ACTION_FIELD_Y },
145 { "accel", ACTION_FIELD_ACCEL },
146 { "accelerate", ACTION_FIELD_ACCEL },
147 { "repeat", ACTION_FIELD_ACCEL },
148 { "button", ACTION_FIELD_BUTTON },
149 { "value", ACTION_FIELD_VALUE },
150 { "controls", ACTION_FIELD_CONTROLS },
151 { "ctrls", ACTION_FIELD_CONTROLS },
152 { "type", ACTION_FIELD_TYPE },
153 { "count", ACTION_FIELD_COUNT },
154 { "screen", ACTION_FIELD_SCREEN },
155 { "same", ACTION_FIELD_SAME },
156 { "sameServer", ACTION_FIELD_SAME },
157 { "data", ACTION_FIELD_DATA },
158 { "device", ACTION_FIELD_DEVICE },
159 { "dev", ACTION_FIELD_DEVICE },
160 { "key", ACTION_FIELD_KEYCODE },
161 { "keycode", ACTION_FIELD_KEYCODE },
162 { "kc", ACTION_FIELD_KEYCODE },
163 { "clearmods", ACTION_FIELD_MODS_TO_CLEAR },
164 { "clearmodifiers", ACTION_FIELD_MODS_TO_CLEAR },
169 stringToAction(const char *str, unsigned *type_rtrn)
171 return LookupString(actionTypeNames, str, type_rtrn);
175 stringToField(const char *str, enum action_field *field_rtrn)
177 return LookupString(fieldStrings, str, field_rtrn);
181 fieldText(enum action_field field)
183 return LookupValue(fieldStrings, field);
186 /***====================================================================***/
189 ReportMismatch(struct xkb_keymap *keymap, enum xkb_action_type action,
190 enum action_field field, const char *type)
193 "Value of %s field must be of type %s; "
194 "Action %s definition ignored\n",
195 fieldText(field), type, ActionTypeText(action));
200 ReportIllegal(struct xkb_keymap *keymap, enum xkb_action_type action,
201 enum action_field field)
204 "Field %s is not defined for an action of type %s; "
205 "Action definition ignored\n",
206 fieldText(field), ActionTypeText(action));
211 ReportActionNotArray(struct xkb_keymap *keymap, enum xkb_action_type action,
212 enum action_field field)
215 "The %s field in the %s action is not an array; "
216 "Action definition ignored\n",
217 fieldText(field), ActionTypeText(action));
222 ReportNotFound(struct xkb_keymap *keymap, enum xkb_action_type action,
223 enum action_field field, const char *what, const char *bad)
226 "%s named %s not found; "
227 "Ignoring the %s field of an %s action\n",
228 what, bad, fieldText(field), ActionTypeText(action));
233 HandleNoAction(struct xkb_keymap *keymap, union xkb_action *action,
234 enum action_field field, const ExprDef *array_ndx,
235 const ExprDef *value)
242 CheckLatchLockFlags(struct xkb_keymap *keymap, enum xkb_action_type action,
243 enum action_field field, const ExprDef *value,
244 enum xkb_action_flags *flags_inout)
246 enum xkb_action_flags tmp;
249 if (field == ACTION_FIELD_CLEAR_LOCKS)
250 tmp = ACTION_LOCK_CLEAR;
251 else if (field == ACTION_FIELD_LATCH_TO_LOCK)
252 tmp = ACTION_LATCH_TO_LOCK;
254 return false; /* WSGO! */
256 if (!ExprResolveBoolean(keymap->ctx, value, &result))
257 return ReportMismatch(keymap, action, field, "boolean");
262 *flags_inout &= ~tmp;
268 CheckModifierField(struct xkb_keymap *keymap, enum xkb_action_type action,
269 const ExprDef *value, enum xkb_action_flags *flags_inout,
270 xkb_mod_mask_t *mods_rtrn)
272 if (value->expr.op == EXPR_IDENT) {
274 valStr = xkb_atom_text(keymap->ctx, value->ident.ident);
275 if (valStr && (istreq(valStr, "usemodmapmods") ||
276 istreq(valStr, "modmapmods"))) {
279 *flags_inout |= ACTION_MODS_LOOKUP_MODMAP;
284 if (!ExprResolveModMask(keymap, value, MOD_BOTH, mods_rtrn))
285 return ReportMismatch(keymap, action,
286 ACTION_FIELD_MODIFIERS, "modifier mask");
288 *flags_inout &= ~ACTION_MODS_LOOKUP_MODMAP;
293 HandleSetLatchMods(struct xkb_keymap *keymap, union xkb_action *action,
294 enum action_field field, const ExprDef *array_ndx,
295 const ExprDef *value)
297 struct xkb_mod_action *act = &action->mods;
298 enum xkb_action_flags rtrn, t1;
301 if (array_ndx != NULL) {
303 case ACTION_FIELD_CLEAR_LOCKS:
304 case ACTION_FIELD_LATCH_TO_LOCK:
305 case ACTION_FIELD_MODIFIERS:
306 return ReportActionNotArray(keymap, action->type, field);
313 case ACTION_FIELD_CLEAR_LOCKS:
314 case ACTION_FIELD_LATCH_TO_LOCK:
316 if (CheckLatchLockFlags(keymap, action->type, field, value, &rtrn)) {
322 case ACTION_FIELD_MODIFIERS:
324 if (CheckModifierField(keymap, action->type, value, &t1, &t2)) {
335 return ReportIllegal(keymap, action->type, field);
339 HandleLockMods(struct xkb_keymap *keymap, union xkb_action *action,
340 enum action_field field, const ExprDef *array_ndx,
341 const ExprDef *value)
343 struct xkb_mod_action *act = &action->mods;
344 enum xkb_action_flags t1;
347 if (array_ndx && field == ACTION_FIELD_MODIFIERS)
348 return ReportActionNotArray(keymap, action->type, field);
351 case ACTION_FIELD_MODIFIERS:
353 if (CheckModifierField(keymap, action->type, value, &t1, &t2)) {
364 return ReportIllegal(keymap, action->type, field);
368 CheckGroupField(struct xkb_keymap *keymap, unsigned action,
369 const ExprDef *value, enum xkb_action_flags *flags_inout,
370 xkb_layout_index_t *grp_rtrn)
374 if (value->expr.op == EXPR_NEGATE || value->expr.op == EXPR_UNARY_PLUS) {
375 *flags_inout &= ~ACTION_ABSOLUTE_SWITCH;
376 spec = value->unary.child;
379 *flags_inout |= ACTION_ABSOLUTE_SWITCH;
383 if (!ExprResolveGroup(keymap->ctx, spec, grp_rtrn))
384 return ReportMismatch(keymap, action, ACTION_FIELD_GROUP,
385 "integer (range 1..8)");
387 if (value->expr.op == EXPR_NEGATE)
388 *grp_rtrn = -*grp_rtrn;
389 else if (value->expr.op != EXPR_UNARY_PLUS)
396 HandleSetLatchGroup(struct xkb_keymap *keymap, union xkb_action *action,
397 enum action_field field, const ExprDef *array_ndx,
398 const ExprDef *value)
400 struct xkb_group_action *act = &action->group;
401 enum xkb_action_flags rtrn, t1;
402 xkb_layout_index_t t2;
404 if (array_ndx != NULL) {
406 case ACTION_FIELD_CLEAR_LOCKS:
407 case ACTION_FIELD_LATCH_TO_LOCK:
408 case ACTION_FIELD_GROUP:
409 return ReportActionNotArray(keymap, action->type, field);
417 case ACTION_FIELD_CLEAR_LOCKS:
418 case ACTION_FIELD_LATCH_TO_LOCK:
420 if (CheckLatchLockFlags(keymap, action->type, field, value, &rtrn)) {
426 case ACTION_FIELD_GROUP:
428 if (CheckGroupField(keymap, action->type, value, &t1, &t2)) {
439 return ReportIllegal(keymap, action->type, field);
443 HandleLockGroup(struct xkb_keymap *keymap, union xkb_action *action,
444 enum action_field field, const ExprDef *array_ndx,
445 const ExprDef *value)
447 struct xkb_group_action *act = &action->group;
448 enum xkb_action_flags t1;
449 xkb_layout_index_t t2;
451 if ((array_ndx != NULL) && (field == ACTION_FIELD_GROUP))
452 return ReportActionNotArray(keymap, action->type, field);
453 if (field == ACTION_FIELD_GROUP) {
455 if (CheckGroupField(keymap, action->type, value, &t1, &t2)) {
462 return ReportIllegal(keymap, action->type, field);
466 HandleMovePtr(struct xkb_keymap *keymap, union xkb_action *action,
467 enum action_field field, const ExprDef *array_ndx,
468 const ExprDef *value)
470 struct xkb_pointer_action *act = &action->ptr;
472 if (array_ndx && (field == ACTION_FIELD_X || field == ACTION_FIELD_Y))
473 return ReportActionNotArray(keymap, action->type, field);
475 if (field == ACTION_FIELD_X || field == ACTION_FIELD_Y) {
477 const bool absolute = (value->expr.op != EXPR_NEGATE &&
478 value->expr.op != EXPR_UNARY_PLUS);
480 if (!ExprResolveInteger(keymap->ctx, value, &val))
481 return ReportMismatch(keymap, action->type, field, "integer");
483 if (field == ACTION_FIELD_X) {
485 act->flags |= ACTION_ABSOLUTE_X;
490 act->flags |= ACTION_ABSOLUTE_Y;
496 else if (field == ACTION_FIELD_ACCEL) {
499 if (!ExprResolveBoolean(keymap->ctx, value, &set))
500 return ReportMismatch(keymap, action->type, field, "boolean");
503 act->flags &= ~ACTION_NO_ACCEL;
505 act->flags |= ACTION_NO_ACCEL;
508 return ReportIllegal(keymap, action->type, field);
511 static const LookupEntry lockWhich[] = {
513 { "lock", ACTION_LOCK_NO_UNLOCK },
514 { "neither", (ACTION_LOCK_NO_LOCK | ACTION_LOCK_NO_UNLOCK) },
515 { "unlock", ACTION_LOCK_NO_LOCK },
520 HandlePtrBtn(struct xkb_keymap *keymap, union xkb_action *action,
521 enum action_field field, const ExprDef *array_ndx,
522 const ExprDef *value)
524 struct xkb_pointer_button_action *act = &action->btn;
526 if (field == ACTION_FIELD_BUTTON) {
530 return ReportActionNotArray(keymap, action->type, field);
532 if (!ExprResolveButton(keymap->ctx, value, &btn))
533 return ReportMismatch(keymap, action->type, field,
534 "integer (range 1..5)");
536 if (btn < 0 || btn > 5) {
538 "Button must specify default or be in the range 1..5; "
539 "Illegal button value %d ignored\n", btn);
546 else if (action->type == ACTION_TYPE_PTR_LOCK &&
547 field == ACTION_FIELD_AFFECT) {
548 enum xkb_action_flags val;
551 return ReportActionNotArray(keymap, action->type, field);
553 if (!ExprResolveEnum(keymap->ctx, value, &val, lockWhich))
554 return ReportMismatch(keymap, action->type, field,
557 act->flags &= ~(ACTION_LOCK_NO_LOCK | ACTION_LOCK_NO_UNLOCK);
561 else if (field == ACTION_FIELD_COUNT) {
565 return ReportActionNotArray(keymap, action->type, field);
567 /* XXX: Should this actually be ResolveButton? */
568 if (!ExprResolveButton(keymap->ctx, value, &btn))
569 return ReportMismatch(keymap, action->type, field, "integer");
571 if (btn < 0 || btn > 255) {
573 "The count field must have a value in the range 0..255; "
574 "Illegal count %d ignored\n", btn);
581 return ReportIllegal(keymap, action->type, field);
584 static const LookupEntry ptrDflts[] = {
586 { "defaultbutton", 1 },
592 HandleSetPtrDflt(struct xkb_keymap *keymap, union xkb_action *action,
593 enum action_field field, const ExprDef *array_ndx,
594 const ExprDef *value)
596 struct xkb_pointer_default_action *act = &action->dflt;
598 if (field == ACTION_FIELD_AFFECT) {
602 return ReportActionNotArray(keymap, action->type, field);
604 if (!ExprResolveEnum(keymap->ctx, value, &val, ptrDflts))
605 return ReportMismatch(keymap, action->type, field,
606 "pointer component");
609 else if (field == ACTION_FIELD_BUTTON || field == ACTION_FIELD_VALUE) {
610 const ExprDef *button;
614 return ReportActionNotArray(keymap, action->type, field);
616 if (value->expr.op == EXPR_NEGATE ||
617 value->expr.op == EXPR_UNARY_PLUS) {
618 act->flags &= ~ACTION_ABSOLUTE_SWITCH;
619 button = value->unary.child;
622 act->flags |= ACTION_ABSOLUTE_SWITCH;
626 if (!ExprResolveButton(keymap->ctx, button, &btn))
627 return ReportMismatch(keymap, action->type, field,
628 "integer (range 1..5)");
630 if (btn < 0 || btn > 5) {
632 "New default button value must be in the range 1..5; "
633 "Illegal default button value %d ignored\n", btn);
638 "Cannot set default pointer button to \"default\"; "
639 "Illegal default button setting ignored\n");
643 act->value = (value->expr.op == EXPR_NEGATE ? -btn: btn);
647 return ReportIllegal(keymap, action->type, field);
651 HandleSwitchScreen(struct xkb_keymap *keymap, union xkb_action *action,
652 enum action_field field, const ExprDef *array_ndx,
653 const ExprDef *value)
655 struct xkb_switch_screen_action *act = &action->screen;
657 if (field == ACTION_FIELD_SCREEN) {
662 return ReportActionNotArray(keymap, action->type, field);
664 if (value->expr.op == EXPR_NEGATE ||
665 value->expr.op == EXPR_UNARY_PLUS) {
666 act->flags &= ~ACTION_ABSOLUTE_SWITCH;
667 scrn = value->unary.child;
670 act->flags |= ACTION_ABSOLUTE_SWITCH;
674 if (!ExprResolveInteger(keymap->ctx, scrn, &val))
675 return ReportMismatch(keymap, action->type, field,
678 if (val < 0 || val > 255) {
680 "Screen index must be in the range 1..255; "
681 "Illegal screen value %d ignored\n", val);
685 act->screen = (value->expr.op == EXPR_NEGATE ? -val : val);
688 else if (field == ACTION_FIELD_SAME) {
692 return ReportActionNotArray(keymap, action->type, field);
694 if (!ExprResolveBoolean(keymap->ctx, value, &set))
695 return ReportMismatch(keymap, action->type, field, "boolean");
698 act->flags &= ~ACTION_SAME_SCREEN;
700 act->flags |= ACTION_SAME_SCREEN;
705 return ReportIllegal(keymap, action->type, field);
709 HandleSetLockControls(struct xkb_keymap *keymap, union xkb_action *action,
710 enum action_field field, const ExprDef *array_ndx,
711 const ExprDef *value)
713 struct xkb_controls_action *act = &action->ctrls;
715 if (field == ACTION_FIELD_CONTROLS) {
719 return ReportActionNotArray(keymap, action->type, field);
721 if (!ExprResolveMask(keymap->ctx, value, &mask, ctrlMaskNames))
722 return ReportMismatch(keymap, action->type, field,
729 return ReportIllegal(keymap, action->type, field);
733 HandlePrivate(struct xkb_keymap *keymap, union xkb_action *action,
734 enum action_field field, const ExprDef *array_ndx,
735 const ExprDef *value)
737 struct xkb_private_action *act = &action->priv;
739 if (field == ACTION_FIELD_TYPE) {
742 if (!ExprResolveInteger(keymap->ctx, value, &type))
743 return ReportMismatch(keymap, ACTION_TYPE_PRIVATE, field, "integer");
745 if (type < 0 || type > 255) {
747 "Private action type must be in the range 0..255; "
748 "Illegal type %d ignored\n", type);
753 * It's possible for someone to write something like this:
754 * actions = [ Private(type=3,data[0]=1,data[1]=3,data[2]=3) ]
755 * where the type refers to some existing action type, e.g. LockMods.
756 * This assumes that this action's struct is laid out in memory
757 * exactly as described in the XKB specification and libraries.
758 * We, however, have changed these structs in various ways, so this
759 * assumption is no longer true. Since this is a lousy "feature", we
760 * make actions like these no-ops for now.
762 if (type < ACTION_TYPE_PRIVATE) {
763 log_info(keymap->ctx,
764 "Private actions of type %s are not supported; Ignored\n",
765 ActionTypeText(type));
766 act->type = ACTION_TYPE_NONE;
769 act->type = (enum xkb_action_type) type;
774 else if (field == ACTION_FIELD_DATA) {
775 if (array_ndx == NULL) {
780 if (!ExprResolveString(keymap->ctx, value, &val))
781 return ReportMismatch(keymap, action->type, field, "string");
783 str = xkb_atom_text(keymap->ctx, val);
785 if (len < 1 || len > 7) {
786 log_warn(keymap->ctx,
787 "A private action has 7 data bytes; "
788 "Extra %d bytes ignored\n", len - 6);
792 strncpy((char *) act->data, str, sizeof(act->data));
798 if (!ExprResolveInteger(keymap->ctx, array_ndx, &ndx)) {
800 "Array subscript must be integer; "
801 "Illegal subscript ignored\n");
805 if (ndx < 0 || ndx >= sizeof(act->data)) {
807 "The data for a private action is %lu bytes long; "
808 "Attempt to use data[%d] ignored\n",
809 (unsigned long) sizeof(act->data), ndx);
813 if (!ExprResolveInteger(keymap->ctx, value, &datum))
814 return ReportMismatch(keymap, act->type, field, "integer");
816 if (datum < 0 || datum > 255) {
818 "All data for a private action must be 0..255; "
819 "Illegal datum %d ignored\n", datum);
823 act->data[ndx] = (uint8_t) datum;
828 return ReportIllegal(keymap, ACTION_TYPE_NONE, field);
831 typedef bool (*actionHandler)(struct xkb_keymap *keymap,
832 union xkb_action *action,
833 enum action_field field,
834 const ExprDef *array_ndx,
835 const ExprDef *value);
837 static const actionHandler handleAction[_ACTION_TYPE_NUM_ENTRIES] = {
838 [ACTION_TYPE_NONE] = HandleNoAction,
839 [ACTION_TYPE_MOD_SET] = HandleSetLatchMods,
840 [ACTION_TYPE_MOD_LATCH] = HandleSetLatchMods,
841 [ACTION_TYPE_MOD_LOCK] = HandleLockMods,
842 [ACTION_TYPE_GROUP_SET] = HandleSetLatchGroup,
843 [ACTION_TYPE_GROUP_LATCH] = HandleSetLatchGroup,
844 [ACTION_TYPE_GROUP_LOCK] = HandleLockGroup,
845 [ACTION_TYPE_PTR_MOVE] = HandleMovePtr,
846 [ACTION_TYPE_PTR_BUTTON] = HandlePtrBtn,
847 [ACTION_TYPE_PTR_LOCK] = HandlePtrBtn,
848 [ACTION_TYPE_PTR_DEFAULT] = HandleSetPtrDflt,
849 [ACTION_TYPE_TERMINATE] = HandleNoAction,
850 [ACTION_TYPE_SWITCH_VT] = HandleSwitchScreen,
851 [ACTION_TYPE_CTRL_SET] = HandleSetLockControls,
852 [ACTION_TYPE_CTRL_LOCK] = HandleSetLockControls,
853 [ACTION_TYPE_PRIVATE] = HandlePrivate,
856 /***====================================================================***/
859 HandleActionDef(ExprDef *def, struct xkb_keymap *keymap,
860 union xkb_action *action, ActionsInfo *info)
864 unsigned handler_type;
866 if (def->expr.op != EXPR_ACTION_DECL) {
867 log_err(keymap->ctx, "Expected an action definition, found %s\n",
868 expr_op_type_to_string(def->expr.op));
872 str = xkb_atom_text(keymap->ctx, def->action.name);
873 if (!stringToAction(str, &handler_type)) {
874 log_err(keymap->ctx, "Unknown action %s\n", str);
879 * Get the default values for this action type, as modified by
880 * statements such as:
881 * latchMods.clearLocks = True;
883 *action = info->actions[handler_type];
886 * Now change the action properties as specified for this
887 * particular instance, e.g. "modifiers" and "clearLocks" in:
888 * SetMods(modifiers=Alt,clearLocks);
890 for (arg = def->action.args; arg != NULL;
891 arg = (ExprDef *) arg->common.next) {
892 const ExprDef *value;
893 ExprDef *field, *arrayRtrn;
894 const char *elemRtrn, *fieldRtrn;
895 enum action_field fieldNdx;
897 if (arg->expr.op == EXPR_ASSIGN) {
898 field = arg->binary.left;
899 value = arg->binary.right;
901 else if (arg->expr.op == EXPR_NOT || arg->expr.op == EXPR_INVERT) {
902 field = arg->unary.child;
903 value = (const ExprDef *) &constFalse;
907 value = (const ExprDef *) &constTrue;
910 if (!ExprResolveLhs(keymap->ctx, field, &elemRtrn, &fieldRtrn,
916 "Cannot change defaults in an action definition; "
917 "Ignoring attempt to change %s.%s\n",
918 elemRtrn, fieldRtrn);
922 if (!stringToField(fieldRtrn, &fieldNdx)) {
923 log_err(keymap->ctx, "Unknown field name %s\n", fieldRtrn);
927 if (!handleAction[handler_type](keymap, action, fieldNdx, arrayRtrn,
937 SetActionField(struct xkb_keymap *keymap, const char *elem, const char *field,
938 ExprDef *array_ndx, ExprDef *value, ActionsInfo *info)
941 enum action_field action_field;
943 if (!stringToAction(elem, &action))
946 if (!stringToField(field, &action_field)) {
947 log_err(keymap->ctx, "\"%s\" is not a legal field name\n", field);
951 return handleAction[action](keymap, &info->actions[action],
952 action_field, array_ndx, value);