barrier/lib/platform/COSXClipboard.cpp

221 lines
4.6 KiB
C++

/*
* 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 "COSXClipboard.h"
#include "COSXClipboardUTF16Converter.h"
#include "COSXClipboardTextConverter.h"
#include "CLog.h"
#include "XArch.h"
//
// COSXClipboard
//
COSXClipboard::COSXClipboard() :
m_time(0),
m_scrap(NULL)
{
m_converters.push_back(new COSXClipboardUTF16Converter);
m_converters.push_back(new COSXClipboardTextConverter);
}
COSXClipboard::~COSXClipboard()
{
clearConverters();
}
bool
COSXClipboard::empty()
{
LOG((CLOG_DEBUG "empty clipboard"));
assert(m_scrap != NULL);
OSStatus err = ClearScrap(&m_scrap);
if (err != noErr) {
LOG((CLOG_DEBUG "failed to grab clipboard"));
return false;
}
// we own the clipboard
err = PutScrapFlavor(
m_scrap,
getOwnershipFlavor(),
kScrapFlavorMaskNone,
0,
0);
if (err != noErr) {
LOG((CLOG_DEBUG "failed to grab clipboard"));
return false;
}
return true;
}
void
COSXClipboard::add(EFormat format, const CString & data)
{
LOG((CLOG_DEBUG "add %d bytes to clipboard format: %d", data.size(), format));
for (ConverterList::const_iterator index = m_converters.begin();
index != m_converters.end(); ++index) {
IOSXClipboardConverter* converter = *index;
// skip converters for other formats
if (converter->getFormat() == format) {
CString osXData = converter->fromIClipboard(data);
ScrapFlavorType flavorType = converter->getOSXFormat();
PutScrapFlavor(
m_scrap,
flavorType,
kScrapFlavorMaskNone,
osXData.size(),
osXData.data());
}
}
}
bool
COSXClipboard::open(Time time) const
{
LOG((CLOG_DEBUG "open clipboard"));
m_time = time;
OSStatus err = GetCurrentScrap(&m_scrap);
return (err == noErr);
}
void
COSXClipboard::close() const
{
LOG((CLOG_DEBUG "close clipboard"));
m_scrap = NULL;
}
IClipboard::Time
COSXClipboard::getTime() const
{
return m_time;
}
bool
COSXClipboard::has(EFormat format) const
{
assert(m_scrap != NULL);
for (ConverterList::const_iterator index = m_converters.begin();
index != m_converters.end(); ++index) {
IOSXClipboardConverter* converter = *index;
if (converter->getFormat() == format) {
ScrapFlavorFlags flags;
ScrapFlavorType type = converter->getOSXFormat();
if (GetScrapFlavorFlags(m_scrap, type, &flags) == noErr) {
return true;
}
}
}
return false;
}
CString
COSXClipboard::get(EFormat format) const
{
CString result;
// find the converter for the first clipboard format we can handle
IOSXClipboardConverter* converter = NULL;
for (ConverterList::const_iterator index = m_converters.begin();
index != m_converters.end(); ++index) {
converter = *index;
ScrapFlavorFlags flags;
ScrapFlavorType type = converter->getOSXFormat();
if (converter->getFormat() == format &&
GetScrapFlavorFlags(m_scrap, type, &flags) == noErr) {
break;
}
converter = NULL;
}
// if no converter then we don't recognize any formats
if (converter == NULL) {
return result;
}
// get the clipboard data.
char* buffer = NULL;
try {
Size flavorSize;
OSStatus err = GetScrapFlavorSize(m_scrap,
converter->getOSXFormat(), &flavorSize);
if (err != noErr) {
throw err;
}
buffer = new char[flavorSize];
if (buffer == NULL) {
throw memFullErr;
}
err = GetScrapFlavorData(m_scrap,
converter->getOSXFormat(), &flavorSize, buffer);
if (err != noErr) {
throw err;
}
result = CString(buffer, flavorSize);
}
catch (OSStatus err) {
LOG((CLOG_DEBUG "exception thrown in COSXClipboard::get MacError (%d)", err));
}
catch (...) {
LOG((CLOG_DEBUG "unknown exception in COSXClipboard::get"));
RETHROW_XTHREAD
}
delete[] buffer;
return converter->toIClipboard(result);
}
void
COSXClipboard::clearConverters()
{
for (ConverterList::iterator index = m_converters.begin();
index != m_converters.end(); ++index) {
delete *index;
}
m_converters.clear();
}
bool
COSXClipboard::isOwnedBySynergy()
{
ScrapFlavorFlags flags;
ScrapRef scrap;
OSStatus err = GetCurrentScrap(&scrap);
if (err == noErr) {
err = GetScrapFlavorFlags(scrap, getOwnershipFlavor() , &flags);
}
return (err == noErr);
}
ScrapFlavorType
COSXClipboard::getOwnershipFlavor()
{
return 'Syne';
}