/*
 * 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) 1995-2022 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>.
 */

#ifndef BRLTTY_INCLUDED_KTB
#define BRLTTY_INCLUDED_KTB

#include "ktb_types.h"

#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */

extern KeyTable *compileKeyTable (const char *name, KEY_NAME_TABLES_REFERENCE keys);
extern void destroyKeyTable (KeyTable *table);

typedef int KeyNameEntryHandler (const KeyNameEntry *kne, void *data);
extern int forEachKeyName (KEY_NAME_TABLES_REFERENCE keys, KeyNameEntryHandler *handleKeyNameEntry, void *data);
extern const KeyNameEntry *findKeyNameEntry (KeyTable *table, const KeyValue *value);

typedef int KeyTableWriteLineMethod (const wchar_t *line, void *data);
typedef int KeyTableWriteHeaderMethod (const wchar_t *text, unsigned int level, void *data);
typedef int KeyTableBeginElementMethod (unsigned int level, void *data);
typedef int KeyTableEndListMethod (void *data);

typedef struct {
  KeyTableWriteHeaderMethod *writeHeader;
  KeyTableBeginElementMethod *beginElement;
  KeyTableEndListMethod *endList;
} KeyTableListMethods;

extern int listKeyTable (KeyTable *table, const KeyTableListMethods *methods, KeyTableWriteLineMethod *writeLine, void *data);
extern int listKeyNames (KEY_NAME_TABLES_REFERENCE keys, KeyTableWriteLineMethod *writeLine, void *data);
extern int auditKeyTable (KeyTable *table, const char *path);

extern char *ensureKeyTableExtension (const char *path);
extern char *makeKeyTablePath (const char *directory, const char *name);

extern char *makeKeyboardTablePath (const char *directory, const char *name);
extern char *makeInputTablePath (const char *directory, const char *driver, const char *name);

extern void resetKeyTable (KeyTable *table);
extern void releaseAllKeys (KeyTable *table);

extern KeyTableState processKeyEvent (
  KeyTable *table, unsigned char context,
  KeyGroup keyGroup, KeyNumber keyNumber, int press
);

extern void setKeyTableLogLabel (KeyTable *table, const char *label);
extern void setLogKeyEventsFlag (KeyTable *table, const unsigned char *flag);
extern void setKeyboardEnabledFlag (KeyTable *table, const unsigned char *flag);
extern void setKeyAutoreleaseTime (KeyTable *table, unsigned char setting);

extern void getKeyGroupCommands (KeyTable *table, KeyGroup group, int *commands, unsigned int size);
extern int *getBoundCommands (KeyTable *table, unsigned int *count);

#ifdef __cplusplus
}
#endif /* __cplusplus */

#endif /* BRLTTY_INCLUDED_KTB */
