Bool ResolveVirtualModifier(ExprDef *def,ExprResult *val_rtrn,VModInfo *info) { XkbNamesPtr names; names= info->xkb->names; if (def->op==ExprIdent) { register int i,bit; for (i=0,bit=1;i<XkbNumVirtualMods;i++,bit<<=1) { char *str1,*str2; str1= XkbAtomGetString(info->xkb->dpy,names->vmods[i]); str2= XkbAtomGetString(NULL,def->value.str); if ((info->available&bit)&& (uStrCaseCmp(str1,str2)==Equal)) { val_rtrn->uval= i; return True; } } } if (ExprResolveInteger(def,val_rtrn,NULL,NULL)) { if (val_rtrn->uval<XkbNumVirtualMods) return True; ERROR2("Illegal virtual modifier %d (must be 0..%d inclusive)\n", val_rtrn->uval,XkbNumVirtualMods-1); } return False; }
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 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 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); }