static bool
HandleSetPtrDflt(struct xkb_keymap *keymap, union xkb_action *action,
enum action_field field, const ExprDef *array_ndx,
const ExprDef *value)
{
struct xkb_pointer_default_action *act = &action->dflt;
if (field == ACTION_FIELD_AFFECT) {
unsigned int val;
if (array_ndx)
return ReportActionNotArray(keymap, action->type, field);
if (!ExprResolveEnum(keymap->ctx, value, &val, ptrDflts))
return ReportMismatch(keymap, action->type, field,
"pointer component");
return true;
}
else if (field == ACTION_FIELD_BUTTON || field == ACTION_FIELD_VALUE) {
const ExprDef *button;
int btn;
if (array_ndx)
return ReportActionNotArray(keymap, action->type, field);
if (value->expr.op == EXPR_NEGATE ||
value->expr.op == EXPR_UNARY_PLUS) {
act->flags &= ~ACTION_ABSOLUTE_SWITCH;
button = value->unary.child;
}
else {
act->flags |= ACTION_ABSOLUTE_SWITCH;
button = value;
}
if (!ExprResolveButton(keymap->ctx, button, &btn))
return ReportMismatch(keymap, action->type, field,
"integer (range 1..5)");
if (btn < 0 || btn > 5) {
log_err(keymap->ctx,
"New default button value must be in the range 1..5; "
"Illegal default button value %d ignored\n", btn);
return false;
}
if (btn == 0) {
log_err(keymap->ctx,
"Cannot set default pointer button to \"default\"; "
"Illegal default button setting ignored\n");
return false;
}
act->value = (value->expr.op == EXPR_NEGATE ? -btn: btn);
return true;
}
return ReportIllegal(keymap, action->type, field);
}
static bool
HandleSwitchScreen(struct xkb_keymap *keymap, union xkb_action *action,
enum action_field field, const ExprDef *array_ndx,
const ExprDef *value)
{
struct xkb_switch_screen_action *act = &action->screen;
if (field == ACTION_FIELD_SCREEN) {
const ExprDef *scrn;
int val;
if (array_ndx)
return ReportActionNotArray(keymap, action->type, field);
if (value->expr.op == EXPR_NEGATE ||
value->expr.op == EXPR_UNARY_PLUS) {
act->flags &= ~ACTION_ABSOLUTE_SWITCH;
scrn = value->unary.child;
}
else {
act->flags |= ACTION_ABSOLUTE_SWITCH;
scrn = value;
}
if (!ExprResolveInteger(keymap->ctx, scrn, &val))
return ReportMismatch(keymap, action->type, field,
"integer (0..255)");
if (val < 0 || val > 255) {
log_err(keymap->ctx,
"Screen index must be in the range 1..255; "
"Illegal screen value %d ignored\n", val);
return false;
}
act->screen = (value->expr.op == EXPR_NEGATE ? -val : val);
return true;
}
else if (field == ACTION_FIELD_SAME) {
bool set;
if (array_ndx)
return ReportActionNotArray(keymap, action->type, field);
if (!ExprResolveBoolean(keymap->ctx, value, &set))
return ReportMismatch(keymap, action->type, field, "boolean");
if (set)
act->flags &= ~ACTION_SAME_SCREEN;
else
act->flags |= ACTION_SAME_SCREEN;
return true;
}
return ReportIllegal(keymap, action->type, field);
}
static bool
HandlePtrBtn(struct xkb_context *ctx, const struct xkb_mod_set *mods,
union xkb_action *action, enum action_field field,
const ExprDef *array_ndx, const ExprDef *value)
{
struct xkb_pointer_button_action *act = &action->btn;
if (field == ACTION_FIELD_BUTTON) {
int btn;
if (array_ndx)
return ReportActionNotArray(ctx, action->type, field);
if (!ExprResolveButton(ctx, value, &btn))
return ReportMismatch(ctx, action->type, field,
"integer (range 1..5)");
if (btn < 0 || btn > 5) {
log_err(ctx,
"Button must specify default or be in the range 1..5; "
"Illegal button value %d ignored\n", btn);
return false;
}
act->button = btn;
return true;
}
else if (action->type == ACTION_TYPE_PTR_LOCK &&
field == ACTION_FIELD_AFFECT) {
return CheckAffectField(ctx, action->type, array_ndx, value,
&act->flags);
}
else if (field == ACTION_FIELD_COUNT) {
int val;
if (array_ndx)
return ReportActionNotArray(ctx, action->type, field);
if (!ExprResolveInteger(ctx, value, &val))
return ReportMismatch(ctx, action->type, field, "integer");
if (val < 0 || val > 255) {
log_err(ctx,
"The count field must have a value in the range 0..255; "
"Illegal count %d ignored\n", val);
return false;
}
act->count = (uint8_t) val;
return true;
}
return ReportIllegal(ctx, action->type, field);
}
static bool
HandleMovePtr(struct xkb_keymap *keymap, union xkb_action *action,
enum action_field field, const ExprDef *array_ndx,
const ExprDef *value)
{
struct xkb_pointer_action *act = &action->ptr;
bool absolute;
if (array_ndx && (field == ACTION_FIELD_X || field == ACTION_FIELD_Y))
return ReportActionNotArray(keymap, action->type, field);
if (field == ACTION_FIELD_X || field == ACTION_FIELD_Y) {
int val;
if (value->expr.op == EXPR_NEGATE || value->expr.op == EXPR_UNARY_PLUS)
absolute = false;
else
absolute = true;
if (!ExprResolveInteger(keymap->ctx, value, &val))
return ReportMismatch(keymap, action->type, field, "integer");
if (field == ACTION_FIELD_X) {
if (absolute)
act->flags |= ACTION_ABSOLUTE_X;
act->x = val;
}
else {
if (absolute)
act->flags |= ACTION_ABSOLUTE_Y;
act->y = val;
}
return true;
}
else if (field == ACTION_FIELD_ACCEL) {
bool set;
if (!ExprResolveBoolean(keymap->ctx, value, &set))
return ReportMismatch(keymap, action->type, field, "boolean");
if (set)
act->flags &= ~ACTION_NO_ACCEL;
else
act->flags |= ACTION_NO_ACCEL;
}
return ReportIllegal(keymap, action->type, field);
}
static bool
CheckGroupField(struct xkb_keymap *keymap, unsigned action,
const ExprDef *value, enum xkb_action_flags *flags_inout,
xkb_layout_index_t *grp_rtrn)
{
const ExprDef *spec;
if (value->expr.op == EXPR_NEGATE || value->expr.op == EXPR_UNARY_PLUS) {
*flags_inout &= ~ACTION_ABSOLUTE_SWITCH;
spec = value->unary.child;
}
else {
*flags_inout |= ACTION_ABSOLUTE_SWITCH;
spec = value;
}
if (!ExprResolveGroup(keymap->ctx, spec, grp_rtrn))
return ReportMismatch(keymap, action, ACTION_FIELD_GROUP,
"integer (range 1..8)");
if (value->expr.op == EXPR_NEGATE)
*grp_rtrn = -*grp_rtrn;
else if (value->expr.op != EXPR_UNARY_PLUS)
(*grp_rtrn)--;
return true;
}
static bool
CheckLatchLockFlags(struct xkb_keymap *keymap, enum xkb_action_type action,
enum action_field field, const ExprDef *value,
enum xkb_action_flags *flags_inout)
{
enum xkb_action_flags tmp;
bool result;
if (field == ACTION_FIELD_CLEAR_LOCKS)
tmp = ACTION_LOCK_CLEAR;
else if (field == ACTION_FIELD_LATCH_TO_LOCK)
tmp = ACTION_LATCH_TO_LOCK;
else
return false; /* WSGO! */
if (!ExprResolveBoolean(keymap->ctx, value, &result))
return ReportMismatch(keymap, action, field, "boolean");
if (result)
*flags_inout |= tmp;
else
*flags_inout &= ~tmp;
return true;
}
static bool
HandleSetLockControls(struct xkb_context *ctx, const struct xkb_mod_set *mods,
union xkb_action *action, enum action_field field,
const ExprDef *array_ndx, const ExprDef *value)
{
struct xkb_controls_action *act = &action->ctrls;
if (field == ACTION_FIELD_CONTROLS) {
enum xkb_action_controls mask;
if (array_ndx)
return ReportActionNotArray(ctx, action->type, field);
if (!ExprResolveMask(ctx, value, &mask, ctrlMaskNames))
return ReportMismatch(ctx, action->type, field,
"controls mask");
act->ctrls = mask;
return true;
}
else if (field == ACTION_FIELD_AFFECT) {
return CheckAffectField(ctx, action->type, array_ndx, value,
&act->flags);
}
return ReportIllegal(ctx, action->type, field);
}
static bool
CheckModifierField(struct xkb_context *ctx, const struct xkb_mod_set *mods,
enum xkb_action_type action, const ExprDef *array_ndx,
const ExprDef *value, enum xkb_action_flags *flags_inout,
xkb_mod_mask_t *mods_rtrn)
{
if (array_ndx)
return ReportActionNotArray(ctx, action, ACTION_FIELD_MODIFIERS);
if (value->expr.op == EXPR_IDENT) {
const char *valStr;
valStr = xkb_atom_text(ctx, value->ident.ident);
if (valStr && (istreq(valStr, "usemodmapmods") ||
istreq(valStr, "modmapmods"))) {
*mods_rtrn = 0;
*flags_inout |= ACTION_MODS_LOOKUP_MODMAP;
return true;
}
}
if (!ExprResolveModMask(ctx, value, MOD_BOTH, mods, mods_rtrn))
return ReportMismatch(ctx, action,
ACTION_FIELD_MODIFIERS, "modifier mask");
*flags_inout &= ~ACTION_MODS_LOOKUP_MODMAP;
return true;
}
static bool
HandleMovePtr(struct xkb_context *ctx, const struct xkb_mod_set *mods,
union xkb_action *action, enum action_field field,
const ExprDef *array_ndx, const ExprDef *value)
{
struct xkb_pointer_action *act = &action->ptr;
if (field == ACTION_FIELD_X || field == ACTION_FIELD_Y) {
int val;
const bool absolute = (value->expr.op != EXPR_NEGATE &&
value->expr.op != EXPR_UNARY_PLUS);
if (array_ndx)
return ReportActionNotArray(ctx, action->type, field);
if (!ExprResolveInteger(ctx, value, &val))
return ReportMismatch(ctx, action->type, field, "integer");
if (val < INT16_MIN || val > INT16_MAX) {
log_err(ctx,
"The %s field in the %s action must be in range %d..%d; "
"Action definition ignored\n",
fieldText(field), ActionTypeText(action->type),
INT16_MIN, INT16_MAX);
return false;
}
if (field == ACTION_FIELD_X) {
if (absolute)
act->flags |= ACTION_ABSOLUTE_X;
act->x = (int16_t) val;
}
else {
if (absolute)
act->flags |= ACTION_ABSOLUTE_Y;
act->y = (int16_t) val;
}
return true;
}
else if (field == ACTION_FIELD_ACCEL) {
return CheckBooleanFlag(ctx, action->type, field,
ACTION_ACCEL, array_ndx, value, &act->flags);
}
return ReportIllegal(ctx, action->type, field);
}
static bool
CheckAffectField(struct xkb_context *ctx, enum xkb_action_type action,
const ExprDef *array_ndx, const ExprDef *value,
enum xkb_action_flags *flags_inout)
{
enum xkb_action_flags flags;
if (array_ndx)
return ReportActionNotArray(ctx, action, ACTION_FIELD_AFFECT);
if (!ExprResolveEnum(ctx, value, &flags, lockWhich))
return ReportMismatch(ctx, action, ACTION_FIELD_AFFECT,
"lock, unlock, both, neither");
*flags_inout &= ~(ACTION_LOCK_NO_LOCK | ACTION_LOCK_NO_UNLOCK);
*flags_inout |= flags;
return true;
}
static bool
CheckBooleanFlag(struct xkb_context *ctx, enum xkb_action_type action,
enum action_field field, enum xkb_action_flags flag,
const ExprDef *array_ndx, const ExprDef *value,
enum xkb_action_flags *flags_inout)
{
bool set;
if (array_ndx)
return ReportActionNotArray(ctx, action, field);
if (!ExprResolveBoolean(ctx, value, &set))
return ReportMismatch(ctx, action, field, "boolean");
if (set)
*flags_inout |= flag;
else
*flags_inout &= ~flag;
return true;
}
static bool
HandleSetLockControls(struct xkb_keymap *keymap, union xkb_action *action,
enum action_field field, const ExprDef *array_ndx,
const ExprDef *value)
{
struct xkb_controls_action *act = &action->ctrls;
if (field == ACTION_FIELD_CONTROLS) {
unsigned int mask;
if (array_ndx)
return ReportActionNotArray(keymap, action->type, field);
if (!ExprResolveMask(keymap->ctx, value, &mask, ctrlMaskNames))
return ReportMismatch(keymap, action->type, field,
"controls mask");
act->ctrls = mask;
return true;
}
return ReportIllegal(keymap, action->type, field);
}
static bool
CheckGroupField(struct xkb_context *ctx, enum xkb_action_type action,
const ExprDef *array_ndx, const ExprDef *value,
enum xkb_action_flags *flags_inout, int32_t *group_rtrn)
{
const ExprDef *spec;
xkb_layout_index_t idx;
enum xkb_action_flags flags = *flags_inout;
if (array_ndx)
return ReportActionNotArray(ctx, action, ACTION_FIELD_GROUP);
if (value->expr.op == EXPR_NEGATE || value->expr.op == EXPR_UNARY_PLUS) {
flags &= ~ACTION_ABSOLUTE_SWITCH;
spec = value->unary.child;
}
else {
flags |= ACTION_ABSOLUTE_SWITCH;
spec = value;
}
if (!ExprResolveGroup(ctx, spec, &idx))
return ReportMismatch(ctx, action, ACTION_FIELD_GROUP,
"integer (range 1..8)");
/* +n, -n are relative, n is absolute. */
if (value->expr.op == EXPR_NEGATE || value->expr.op == EXPR_UNARY_PLUS) {
*group_rtrn = (int32_t) idx;
if (value->expr.op == EXPR_NEGATE)
*group_rtrn = -*group_rtrn;
}
else {
*group_rtrn = (int32_t) (idx - 1);
}
*flags_inout = flags;
return true;
}
static bool
HandlePrivate(struct xkb_keymap *keymap, union xkb_action *action,
enum action_field field, const ExprDef *array_ndx,
const ExprDef *value)
{
struct xkb_private_action *act = &action->priv;
if (field == ACTION_FIELD_TYPE) {
int type;
if (!ExprResolveInteger(keymap->ctx, value, &type))
return ReportMismatch(keymap, ACTION_TYPE_PRIVATE, field, "integer");
if (type < 0 || type > 255) {
log_err(keymap->ctx,
"Private action type must be in the range 0..255; "
"Illegal type %d ignored\n", type);
return false;
}
/*
* It's possible for someone to write something like this:
* actions = [ Private(type=3,data[0]=1,data[1]=3,data[2]=3) ]
* where the type refers to some existing action type, e.g. LockMods.
* This assumes that this action's struct is laid out in memory
* exactly as described in the XKB specification and libraries.
* We, however, have changed these structs in various ways, so this
* assumption is no longer true. Since this is a lousy "feature", we
* make actions like these no-ops for now.
*/
if (type < ACTION_TYPE_PRIVATE) {
log_info(keymap->ctx,
"Private actions of type %s are not supported; Ignored\n",
ActionTypeText(type));
act->type = ACTION_TYPE_NONE;
}
else {
act->type = (enum xkb_action_type) type;
}
return true;
}
else if (field == ACTION_FIELD_DATA) {
if (array_ndx == NULL) {
xkb_atom_t val;
const char *str;
int len;
if (!ExprResolveString(keymap->ctx, value, &val))
return ReportMismatch(keymap, action->type, field, "string");
str = xkb_atom_text(keymap->ctx, val);
len = strlen(str);
if (len < 1 || len > 7) {
log_warn(keymap->ctx,
"A private action has 7 data bytes; "
"Extra %d bytes ignored\n", len - 6);
return false;
}
strncpy((char *) act->data, str, sizeof(act->data));
return true;
}
else {
int ndx, datum;
if (!ExprResolveInteger(keymap->ctx, array_ndx, &ndx)) {
log_err(keymap->ctx,
"Array subscript must be integer; "
"Illegal subscript ignored\n");
return false;
}
if (ndx < 0 || ndx >= sizeof(act->data)) {
log_err(keymap->ctx,
"The data for a private action is %lu bytes long; "
"Attempt to use data[%d] ignored\n",
(unsigned long) sizeof(act->data), ndx);
return false;
}
if (!ExprResolveInteger(keymap->ctx, value, &datum))
return ReportMismatch(keymap, act->type, field, "integer");
if (datum < 0 || datum > 255) {
log_err(keymap->ctx,
"All data for a private action must be 0..255; "
"Illegal datum %d ignored\n", datum);
return false;
}
act->data[ndx] = (uint8_t) datum;
return true;
}
}
return ReportIllegal(keymap, ACTION_TYPE_NONE, field);
}
static bool
HandlePtrBtn(struct xkb_keymap *keymap, union xkb_action *action,
enum action_field field, const ExprDef *array_ndx,
const ExprDef *value)
{
struct xkb_pointer_button_action *act = &action->btn;
if (field == ACTION_FIELD_BUTTON) {
int btn;
if (array_ndx)
return ReportActionNotArray(keymap, action->type, field);
if (!ExprResolveButton(keymap->ctx, value, &btn))
return ReportMismatch(keymap, action->type, field,
"integer (range 1..5)");
if (btn < 0 || btn > 5) {
log_err(keymap->ctx,
"Button must specify default or be in the range 1..5; "
"Illegal button value %d ignored\n", btn);
return false;
}
act->button = btn;
return true;
}
else if (action->type == ACTION_TYPE_PTR_LOCK &&
field == ACTION_FIELD_AFFECT) {
enum xkb_action_flags val;
if (array_ndx)
return ReportActionNotArray(keymap, action->type, field);
if (!ExprResolveEnum(keymap->ctx, value, &val, lockWhich))
return ReportMismatch(keymap, action->type, field,
"lock or unlock");
act->flags &= ~(ACTION_LOCK_NO_LOCK | ACTION_LOCK_NO_UNLOCK);
act->flags |= val;
return true;
}
else if (field == ACTION_FIELD_COUNT) {
int btn;
if (array_ndx)
return ReportActionNotArray(keymap, action->type, field);
/* XXX: Should this actually be ResolveButton? */
if (!ExprResolveButton(keymap->ctx, value, &btn))
return ReportMismatch(keymap, action->type, field, "integer");
if (btn < 0 || btn > 255) {
log_err(keymap->ctx,
"The count field must have a value in the range 0..255; "
"Illegal count %d ignored\n", btn);
return false;
}
act->count = btn;
return true;
}
return ReportIllegal(keymap, action->type, field);
}
