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path: root/src/lib/platform/OSXClipboardTextConverter.cpp
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/*
 * barrier -- mouse and keyboard sharing utility
 * Copyright (C) 2012-2016 Symless Ltd.
 * Copyright (C) 2004 Chris Schoeneman
 * 
 * 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/>.
 */

#include "platform/OSXClipboardTextConverter.h"

#include "base/Unicode.h"

//
// OSXClipboardTextConverter
//

OSXClipboardTextConverter::OSXClipboardTextConverter() 
{
    // do nothing
}

OSXClipboardTextConverter::~OSXClipboardTextConverter()
{
    // do nothing
}

CFStringRef
OSXClipboardTextConverter::getOSXFormat() const
{
    return CFSTR("public.plain-text");
}

std::string OSXClipboardTextConverter::convertString(const std::string& data,
                                                     CFStringEncoding fromEncoding,
                                                     CFStringEncoding toEncoding)
{
    CFStringRef stringRef =
        CFStringCreateWithCString(kCFAllocatorDefault,
                            data.c_str(), fromEncoding);

    if (stringRef == NULL) {
        return {};
    }

    CFIndex buffSize;
    CFRange entireString = CFRangeMake(0, CFStringGetLength(stringRef));

    CFStringGetBytes(stringRef, entireString, toEncoding,
                            0, false, NULL, 0, &buffSize);

    char* buffer = new char[buffSize];
    
    if (buffer == NULL) {
        CFRelease(stringRef);
        return {};
    }
    
    CFStringGetBytes(stringRef, entireString, toEncoding,
                            0, false, (UInt8*)buffer, buffSize, NULL);

    std::string result(buffer, buffSize);

    delete[] buffer;
    CFRelease(stringRef);
    
    return result;
}

std::string OSXClipboardTextConverter::doFromIClipboard(const std::string& data) const
{
    return convertString(data, kCFStringEncodingUTF8,
                            CFStringGetSystemEncoding());
}

std::string OSXClipboardTextConverter::doToIClipboard(const std::string& data) const
{
    return convertString(data, CFStringGetSystemEncoding(),
                            kCFStringEncodingUTF8);
}