/*
 * Deskflow -- mouse and keyboard sharing utility
 * Copyright (C) 2016 Symless Ltd.
 *
 * This package is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * found in the file LICENSE that should have accompanied this file.
 *
 * This package is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

#pragma once

#include "deskflow/KeyState.h"
#include "platform/IOSXKeyResource.h"

#include <Carbon/Carbon.h>

using KeyLayout = TISInputSourceRef;

class OSXUchrKeyResource : public IOSXKeyResource
{
public:
  OSXUchrKeyResource(const void *, UInt32 keyboardType);

  // KeyResource overrides
  virtual bool isValid() const;
  virtual UInt32 getNumModifierCombinations() const;
  virtual UInt32 getNumTables() const;
  virtual UInt32 getNumButtons() const;
  virtual UInt32 getTableForModifier(UInt32 mask) const;
  virtual KeyID getKey(UInt32 table, UInt32 button) const;

private:
  using KeySequence = std::vector<KeyID>;

  bool getDeadKey(KeySequence &keys, UInt16 index) const;
  bool getKeyRecord(KeySequence &keys, UInt16 index, UInt16 &state) const;
  bool addSequence(KeySequence &keys, UCKeyCharSeq c) const;

private:
  const UCKeyboardLayout *m_resource;
  const UCKeyModifiersToTableNum *m_m;
  const UCKeyToCharTableIndex *m_cti;
  const UCKeySequenceDataIndex *m_sdi;
  const UCKeyStateRecordsIndex *m_sri;
  const UCKeyStateTerminators *m_st;
  UInt16 m_spaceOutput;
};
