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#include <unistd.h>
#include <sys/un.h>
#include <sys/socket.h>
#include <errno.h>
#include <qsocket.h>
#include <kdebug.h>
#include <klocale.h>
#include <kmessagebox.h>
#include "lirc.h"
Lirc::Lirc(QObject *parent)
: QObject(parent),
m_socket(0)
{
int sock = ::socket(PF_UNIX, SOCK_STREAM, 0);
if (sock == -1)
{
KMessageBox::sorry(0, i18n("Could not create a socket to receive infrared signals. The error is:\n") + strerror(errno));
return;
}
sockaddr_un addr;
addr.sun_family = AF_UNIX;
strcpy(addr.sun_path, "/dev/lircd");
if (::connect(sock, (struct sockaddr *)(&addr), sizeof(addr)) == -1)
{
KMessageBox::sorry(0, i18n("Could not establish a connection to receive infrared signals. The error is:\n") + strerror(errno));
::close(sock);
return;
}
m_socket = new QSocket;
m_socket->setSocket(sock);
connect(m_socket, SIGNAL(readyRead()), SLOT(slotRead()));
update();
}
Lirc::~Lirc()
{
delete m_socket;
}
const QStringList Lirc::remotes() const
{
QStringList result;
for (Remotes::ConstIterator it = m_remotes.begin(); it != m_remotes.end(); ++it)
result.append(it.key());
result.sort();
return result;
}
void Lirc::slotRead()
{
while (m_socket->bytesAvailable())
{
QString line = readLine();
if (line == "BEGIN")
{
// BEGIN
// <command>
// [SUCCESS|ERROR]
// [DATA
// n
// n lines of data]
// END
line = readLine();
if (line == "SIGHUP")
{
// Configuration changed
do line = readLine();
while (!line.isEmpty() && line != "END");
update();
return;
}
else if (line == "LIST")
{
// remote control list
if (readLine() != "SUCCESS" || readLine() != "DATA")
{
do line = readLine();
while (!line.isEmpty() && line != "END");
return;
}
QStringList remotes;
int count = readLine().toInt();
for (int i = 0; i < count; ++i)
remotes.append(readLine());
do line = readLine();
while (!line.isEmpty() && line != "END");
if (line.isEmpty())
return; // abort on corrupt data
for (QStringList::ConstIterator it = remotes.begin(); it != remotes.end(); ++it)
sendCommand("LIST " + *it);
return;
}
else if (line.left(4) == "LIST")
{
// button list
if (readLine() != "SUCCESS" || readLine() != "DATA")
{
do line = readLine();
while (!line.isEmpty() && line != "END");
return;
}
QString remote = line.mid(5);
QStringList buttons;
int count = readLine().toInt();
for (int i = 0; i < count; ++i)
{
// <code> <name>
QString btn = readLine();
buttons.append(btn.mid(17));
}
m_remotes.insert(remote, buttons);
}
do line = readLine();
while (!line.isEmpty() && line != "END");
emit remotesRead();
}
else
{
// <code> <repeat> <button name> <remote control name>
line.remove(0, 17); // strip code
int pos = line.find(' ');
if (pos < 0)
return;
bool ok;
int repeat = line.left(pos).toInt(&ok, 16);
if (!ok)
return;
line.remove(0, pos + 1);
pos = line.find(' ');
if (pos < 0)
return;
QString btn = line.left(pos);
line.remove(0, pos + 1);
emit commandReceived(line, btn, repeat);
}
}
}
void Lirc::update()
{
m_remotes.clear();
sendCommand("LIST");
}
const QString Lirc::readLine()
{
if (!m_socket->bytesAvailable())
return QString::null;
QString line = m_socket->readLine();
if (line.isEmpty())
return QString::null;
line.remove(line.length() - 1, 1);
return line;
}
void Lirc::sendCommand(const QString &command)
{
QString cmd = command + "\n";
m_socket->writeBlock(cmd.latin1(), cmd.length());
}
#include "lirc.moc"
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