sortix--sortix/kernel/kb/kblayout.h

/*
 * Copyright (c) 2014 Jonas 'Sortie' Termansen.
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 *
 * kb/kblayout.h
 * Engine that executes a keyboard layout program.
 */

#ifndef SORTIX_KB_KBLAYOUT_H
#define SORTIX_KB_KBLAYOUT_H

#include <stddef.h>
#include <stdint.h>

#include <sortix/kblayout.h>

namespace Sortix {

class KeyboardLayoutExecutor
{
public:
	KeyboardLayoutExecutor();
	~KeyboardLayoutExecutor();

public:
	bool Upload(const uint8_t* data, size_t data_size);
	bool Download(const uint8_t** data, size_t* data_size);
	uint32_t Translate(int kbkey);

private:
	struct kblayout header;
	struct kblayout_action* actions;
	uint8_t* keys_down;
	uint32_t modifier_counts[KBLAYOUT_MAX_NUM_MODIFIERS];
	uint32_t modifiers;
	bool loaded;
	uint8_t* saved_data;
	size_t saved_data_size;

};

} // namespace Sortix

#endif