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/*
* BRLTTY - A background process providing access to the console screen (when in
* text mode) for a blind person using a refreshable braille display.
*
* Copyright (C) 1995-2024 by The BRLTTY Developers.
*
* BRLTTY comes with ABSOLUTELY NO WARRANTY.
*
* This is free software, placed under the terms of the
* GNU Lesser General Public License, as published by the Free Software
* Foundation; either version 2.1 of the License, or (at your option) any
* later version. Please see the file LICENSE-LGPL for details.
*
* Web Page: http://brltty.app/
*
* This software is maintained by Dave Mielke <dave@mielke.cc>.
*/
#include "prologue.h"
#include <stdio.h>
#include "cmd_brlapi.h"
#include "brl_cmds.h"
#include "ttb.h"
#ifdef ENABLE_API
static brlapi_keyCode_t
cmdWCharToBrlapi (wchar_t wc) {
if (iswLatin1(wc)) return BRLAPI_KEY_TYPE_SYM | wc;
return BRLAPI_KEY_TYPE_SYM | BRLAPI_KEY_SYM_UNICODE | wc;
}
int
cmdBrlttyToBrlapi (brlapi_keyCode_t *code, int command, int retainDots) {
int blk = command & BRL_MSK_BLK;
int arg = BRL_ARG_GET(command);
switch (blk) {
case BRL_CMD_BLK(PASSCHAR):
*code = cmdWCharToBrlapi(arg);
break;
case BRL_CMD_BLK(PASSDOTS):
if (retainDots) goto doDefault;
*code = cmdWCharToBrlapi(convertInputToCharacter(arg));
break;
case BRL_CMD_BLK(PASSKEY):
switch (arg) {
case BRL_KEY_ENTER: *code = BRLAPI_KEY_SYM_LINEFEED; break;
case BRL_KEY_TAB: *code = BRLAPI_KEY_SYM_TAB; break;
case BRL_KEY_BACKSPACE: *code = BRLAPI_KEY_SYM_BACKSPACE; break;
case BRL_KEY_ESCAPE: *code = BRLAPI_KEY_SYM_ESCAPE; break;
case BRL_KEY_CURSOR_LEFT: *code = BRLAPI_KEY_SYM_LEFT; break;
case BRL_KEY_CURSOR_RIGHT: *code = BRLAPI_KEY_SYM_RIGHT; break;
case BRL_KEY_CURSOR_UP: *code = BRLAPI_KEY_SYM_UP; break;
case BRL_KEY_CURSOR_DOWN: *code = BRLAPI_KEY_SYM_DOWN; break;
case BRL_KEY_PAGE_UP: *code = BRLAPI_KEY_SYM_PAGE_UP; break;
case BRL_KEY_PAGE_DOWN: *code = BRLAPI_KEY_SYM_PAGE_DOWN; break;
case BRL_KEY_HOME: *code = BRLAPI_KEY_SYM_HOME; break;
case BRL_KEY_END: *code = BRLAPI_KEY_SYM_END; break;
case BRL_KEY_INSERT: *code = BRLAPI_KEY_SYM_INSERT; break;
case BRL_KEY_DELETE: *code = BRLAPI_KEY_SYM_DELETE; break;
default: {
int key = arg - BRL_KEY_FUNCTION;
if (key < 0) return 0;
if (key > 34) return 0;
*code = BRLAPI_KEY_SYM_FUNCTION + key;
break;
}
}
break;
default:
doDefault:
*code = BRLAPI_KEY_TYPE_CMD
| (blk >> BRL_SHIFT_BLK << BRLAPI_KEY_CMD_BLK_SHIFT)
| (arg << BRLAPI_KEY_CMD_ARG_SHIFT)
;
break;
}
switch (blk) {
case BRL_CMD_BLK(PASSCHAR):
case BRL_CMD_BLK(PASSDOTS):
case BRL_CMD_BLK(PASSKEY):
*code = *code
| (command & BRL_FLG_INPUT_SHIFT ? BRLAPI_KEY_FLG_SHIFT : 0)
| (command & BRL_FLG_INPUT_UPPER ? BRLAPI_KEY_FLG_UPPER : 0)
| (command & BRL_FLG_INPUT_CONTROL ? BRLAPI_KEY_FLG_CONTROL : 0)
| (command & BRL_FLG_INPUT_META ? BRLAPI_KEY_FLG_META : 0)
| (command & BRL_FLG_INPUT_ALTGR ? BRLAPI_KEY_FLG_ALTGR : 0)
| (command & BRL_FLG_INPUT_GUI ? BRLAPI_KEY_FLG_GUI : 0)
;
break;
case BRL_CMD_BLK(PASSXT):
case BRL_CMD_BLK(PASSAT):
case BRL_CMD_BLK(PASSPS2):
*code = *code
| (command & BRL_FLG_KBD_RELEASE ? BRLAPI_KEY_FLG_KBD_RELEASE : 0)
| (command & BRL_FLG_KBD_EMUL0 ? BRLAPI_KEY_FLG_KBD_EMUL0 : 0)
| (command & BRL_FLG_KBD_EMUL1 ? BRLAPI_KEY_FLG_KBD_EMUL1 : 0)
;
break;
default:
*code = *code
| (command & BRL_FLG_TOGGLE_ON ? BRLAPI_KEY_FLG_TOGGLE_ON : 0)
| (command & BRL_FLG_TOGGLE_OFF ? BRLAPI_KEY_FLG_TOGGLE_OFF : 0)
| (command & BRL_FLG_MOTION_ROUTE ? BRLAPI_KEY_FLG_MOTION_ROUTE : 0)
| (command & BRL_FLG_MOTION_SCALED ? BRLAPI_KEY_FLG_MOTION_SCALED : 0)
| (command & BRL_FLG_MOTION_TOLEFT ? BRLAPI_KEY_FLG_MOTION_TOLEFT : 0)
;
break;
}
return 1;
}
int
cmdBrlapiToBrltty (brlapi_keyCode_t code) {
int cmd;
switch (code & BRLAPI_KEY_TYPE_MASK) {
case BRLAPI_KEY_TYPE_CMD:
cmd = BRL_BLK_PUT((code & BRLAPI_KEY_CMD_BLK_MASK) >> BRLAPI_KEY_CMD_BLK_SHIFT);
cmd |= BRL_ARG_SET((code & BRLAPI_KEY_CMD_ARG_MASK) >> BRLAPI_KEY_CMD_ARG_SHIFT);
break;
case BRLAPI_KEY_TYPE_SYM: {
unsigned long keysym = code & BRLAPI_KEY_CODE_MASK;
switch (keysym) {
case BRLAPI_KEY_SYM_BACKSPACE: cmd = BRL_CMD_BLK(PASSKEY)|BRL_KEY_BACKSPACE; break;
case BRLAPI_KEY_SYM_TAB: cmd = BRL_CMD_BLK(PASSKEY)|BRL_KEY_TAB; break;
case BRLAPI_KEY_SYM_LINEFEED: cmd = BRL_CMD_BLK(PASSKEY)|BRL_KEY_ENTER; break;
case BRLAPI_KEY_SYM_ESCAPE: cmd = BRL_CMD_BLK(PASSKEY)|BRL_KEY_ESCAPE; break;
case BRLAPI_KEY_SYM_HOME: cmd = BRL_CMD_BLK(PASSKEY)|BRL_KEY_HOME; break;
case BRLAPI_KEY_SYM_LEFT: cmd = BRL_CMD_BLK(PASSKEY)|BRL_KEY_CURSOR_LEFT; break;
case BRLAPI_KEY_SYM_UP: cmd = BRL_CMD_BLK(PASSKEY)|BRL_KEY_CURSOR_UP; break;
case BRLAPI_KEY_SYM_RIGHT: cmd = BRL_CMD_BLK(PASSKEY)|BRL_KEY_CURSOR_RIGHT; break;
case BRLAPI_KEY_SYM_DOWN: cmd = BRL_CMD_BLK(PASSKEY)|BRL_KEY_CURSOR_DOWN; break;
case BRLAPI_KEY_SYM_PAGE_UP: cmd = BRL_CMD_BLK(PASSKEY)|BRL_KEY_PAGE_UP; break;
case BRLAPI_KEY_SYM_PAGE_DOWN: cmd = BRL_CMD_BLK(PASSKEY)|BRL_KEY_PAGE_DOWN; break;
case BRLAPI_KEY_SYM_END: cmd = BRL_CMD_BLK(PASSKEY)|BRL_KEY_END; break;
case BRLAPI_KEY_SYM_INSERT: cmd = BRL_CMD_BLK(PASSKEY)|BRL_KEY_INSERT; break;
case BRLAPI_KEY_SYM_DELETE: cmd = BRL_CMD_BLK(PASSKEY)|BRL_KEY_DELETE; break;
default:
if ((keysym >= BRLAPI_KEY_SYM_FUNCTION) &&
(keysym <= (BRLAPI_KEY_SYM_FUNCTION + 34))) {
cmd = BRL_CMD_KFN(keysym - BRLAPI_KEY_SYM_FUNCTION);
} else if ((keysym < 0X100) ||
((keysym & 0x1F000000) == BRLAPI_KEY_SYM_UNICODE)) {
wchar_t c = keysym & 0xFFFFFF;
cmd = BRL_CMD_BLK(PASSCHAR) | BRL_ARG_SET(c);
} else {
return EOF;
}
break;
}
break;
}
default:
return EOF;
}
switch (cmd & BRL_MSK_BLK) {
case BRL_CMD_BLK(PASSCHAR):
case BRL_CMD_BLK(PASSDOTS):
case BRL_CMD_BLK(PASSKEY):
cmd = cmd
| (code & BRLAPI_KEY_FLG_SHIFT ? BRL_FLG_INPUT_SHIFT : 0)
| (code & BRLAPI_KEY_FLG_UPPER ? BRL_FLG_INPUT_UPPER : 0)
| (code & BRLAPI_KEY_FLG_CONTROL ? BRL_FLG_INPUT_CONTROL : 0)
| (code & BRLAPI_KEY_FLG_META ? BRL_FLG_INPUT_META : 0)
| (code & BRLAPI_KEY_FLG_ALTGR ? BRL_FLG_INPUT_ALTGR : 0)
| (code & BRLAPI_KEY_FLG_GUI ? BRL_FLG_INPUT_GUI : 0)
;
break;
case BRL_CMD_BLK(PASSXT):
case BRL_CMD_BLK(PASSAT):
case BRL_CMD_BLK(PASSPS2):
cmd = cmd
| (code & BRLAPI_KEY_FLG_KBD_RELEASE ? BRL_FLG_KBD_RELEASE : 0)
| (code & BRLAPI_KEY_FLG_KBD_EMUL0 ? BRL_FLG_KBD_EMUL0 : 0)
| (code & BRLAPI_KEY_FLG_KBD_EMUL1 ? BRL_FLG_KBD_EMUL1 : 0)
;
break;
default:
cmd = cmd
| (code & BRLAPI_KEY_FLG_TOGGLE_ON ? BRL_FLG_TOGGLE_ON : 0)
| (code & BRLAPI_KEY_FLG_TOGGLE_OFF ? BRL_FLG_TOGGLE_OFF : 0)
| (code & BRLAPI_KEY_FLG_MOTION_ROUTE ? BRL_FLG_MOTION_ROUTE : 0)
| (code & BRLAPI_KEY_FLG_MOTION_SCALED ? BRL_FLG_MOTION_SCALED : 0)
| (code & BRLAPI_KEY_FLG_MOTION_TOLEFT ? BRL_FLG_MOTION_TOLEFT : 0)
;
break;
}
return cmd;
}
#endif /* ENABLE_API */
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