barrier/lib/platform/CMSWindowsClipboardHTMLConverter.cpp

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/*
* synergy -- mouse and keyboard sharing utility
* 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 COPYING 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.
*/
#include "CMSWindowsClipboardHTMLConverter.h"
#include "CStringUtil.h"
//
// CMSWindowsClipboardHTMLConverter
//
CMSWindowsClipboardHTMLConverter::CMSWindowsClipboardHTMLConverter()
{
m_format = RegisterClipboardFormat("HTML Format");
}
CMSWindowsClipboardHTMLConverter::~CMSWindowsClipboardHTMLConverter()
{
// do nothing
}
IClipboard::EFormat
CMSWindowsClipboardHTMLConverter::getFormat() const
{
return IClipboard::kHTML;
}
UINT
CMSWindowsClipboardHTMLConverter::getWin32Format() const
{
return m_format;
}
CString
CMSWindowsClipboardHTMLConverter::doFromIClipboard(const CString& data) const
{
// prepare to CF_HTML format prefix and suffix
CString prefix("Version:0.9\nStartHTML:-1\nEndHTML:-1\n"
"StartFragment:XXXXXXXXXX\nEndFragment:YYYYYYYYYY\n"
"<!DOCTYPE><HTML><BODY><!--StartFragment-->");
CString suffix("<!--EndFragment--></BODY></HTML>\n");
UInt32 start = prefix.size();
UInt32 end = start + data.size();
prefix.replace(prefix.find("XXXXXXXXXX"), 10,
CStringUtil::print("%010u", start));
prefix.replace(prefix.find("YYYYYYYYYY"), 10,
CStringUtil::print("%010u", end));
// concatenate
prefix += data;
prefix += suffix;
return prefix;
}
CString
CMSWindowsClipboardHTMLConverter::doToIClipboard(const CString& data) const
{
// get fragment start/end args
CString startArg = findArg(data, "StartFragment");
CString endArg = findArg(data, "EndFragment");
if (startArg.empty() || endArg.empty()) {
return CString();
}
// convert args to integers
SInt32 start = (SInt32)atoi(startArg.c_str());
SInt32 end = (SInt32)atoi(endArg.c_str());
if (start <= 0 || end <= 0 || start >= end) {
return CString();
}
// extract the fragment
return data.substr(start, end - start);
}
CString
CMSWindowsClipboardHTMLConverter::findArg(
const CString& data, const CString& name) const
{
CString::size_type i = data.find(name);
if (i == CString::npos) {
return CString();
}
i = data.find_first_of(":\r\n", i);
if (i == CString::npos || data[i] != ':') {
return CString();
}
i = data.find_first_of("0123456789\r\n", i + 1);
if (i == CString::npos || data[i] == '\r' || data[i] == '\n') {
return CString();
}
CString::size_type j = data.find_first_not_of("0123456789", i);
if (j == CString::npos) {
j = data.size();
}
return data.substr(i, j - i);
}