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/*
 * barrier -- 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 "barrier/KeyState.h"
#include "platform/IOSXKeyResource.h"

#include <Carbon/Carbon.h>

typedef TISInputSourceRef KeyLayout;

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:
    typedef std::vector<KeyID> KeySequence;
    
    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;
};