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//
// C++ Implementation: global
//
// Description:
//
//
// Author: Paulo Moura Guedes <[email protected]>, (C) 2004
//
// Copyright: See COPYING file that comes with this distribution
//
//
#include "global.h"
#include <qstring.h>
#include <qtimer.h>
#include <dcopclient.h>
#include <dcopref.h>
#include <kdebug.h>
#include <kapplication.h>
#include <kstaticdeleter.h>
#include <kurl.h>
#include <kprocess.h>
#include <sys/types.h>
#include <unistd.h>
Global* Global::m_self_ = 0;
static KStaticDeleter<Global> staticDeleter;
Global* Global::self()
{
if (!m_self_)
{
staticDeleter.setObject(m_self_, new Global());
}
return m_self_;
}
Global::Global(QObject *parent, const char *name)
: QObject(parent, name), loop_started_(false)
{
m_self_ = this;
dcop_client_ = kapp->dcopClient();
}
Global::~Global()
{
if(m_self_ == this)
staticDeleter.setObject(m_self_, 0, false);
}
bool Global::isKLinkStatusEmbeddedInQuanta()
{
QCString app_id = "quanta-" + QCString().setNum(getpid());
return self()->dcop_client_->isApplicationRegistered(app_id);
}
bool Global::isQuantaRunningAsUnique()
{
return self()->dcop_client_->isApplicationRegistered("quanta");
}
bool Global::isQuantaAvailableViaDCOP()
{
if(isQuantaRunningAsUnique() || isKLinkStatusEmbeddedInQuanta())
return true;
else
{
self()->execCommand("ps h -o pid -C quanta -C quanta_be");
QStringList ps_list = QStringList::split("\n", self()->script_output_);
for(uint i = 0; i != ps_list.size(); ++i)
{
ps_list[i] = ps_list[i].stripWhiteSpace ();
if(self()->dcop_client_->isApplicationRegistered("quanta-" + ps_list[i].local8Bit()))
{
//kdDebug(23100) << "Application registered!" << endl;
return true;
}
}
return false;
}
}
QCString Global::quantaDCOPAppId()
{
DCOPClient* client = kapp->dcopClient();
QCString app_id;
if(client->isApplicationRegistered("quanta")) // quanta is unnique application
app_id = "quanta";
else if(self()->isKLinkStatusEmbeddedInQuanta()) // klinkstatus is running as a part inside quanta
{
QCString app = "quanta-";
QCString pid = QCString().setNum(getpid());
app_id = app + pid;
}
else
{
self()->execCommand("ps h -o pid -C quanta -C quanta_be");
QStringList ps_list = QStringList::split("\n", self()->script_output_);
for(uint i = 0; i != ps_list.size(); ++i)
{
ps_list[i] = ps_list[i].stripWhiteSpace ();
if(self()->dcop_client_->isApplicationRegistered("quanta-" + ps_list[i].local8Bit()))
app_id = "quanta-" + ps_list[i];
}
}
if(self()->dcop_client_->isApplicationRegistered(app_id))
return app_id;
else
{
kdError(23100) << "You didn't check if Global::isQuantaAvailableViaDCOP!" << endl;
return "";
}
}
KURL Global::urlWithQuantaPreviewPrefix(KURL const& url)
{
Q_ASSERT(isKLinkStatusEmbeddedInQuanta());
DCOPRef quanta(Global::quantaDCOPAppId(),"WindowManagerIf");
QString string_url_with_prefix = quanta.call("urlWithPreviewPrefix", url.url());
//kdDebug(23100) << "string_url_with_prefix: " << string_url_with_prefix << endl;
return KURL(string_url_with_prefix);
}
void Global::openQuanta(QStringList const& args)
{
QString command(args.join(" "));
Global::execCommand("quanta " + command);
}
void Global::execCommand(QString const& command)
{
//We create a KProcess that executes the "ps" *nix command to get the PIDs of the
//other instances of quanta actually running
self()->process_PS_ = new KProcess();
*(self()->process_PS_) << QStringList::split(" ",command);
connect( self()->process_PS_, SIGNAL(receivedStdout(KProcess*,char*,int)),
self(), SLOT(slotGetScriptOutput(KProcess*,char*,int)));
connect( self()->process_PS_, SIGNAL(receivedStderr(KProcess*,char*,int)),
self(), SLOT(slotGetScriptError(KProcess*,char*,int)));
connect( self()->process_PS_, SIGNAL(processExited(KProcess*)),
self(), SLOT(slotProcessExited(KProcess*)));
//if KProcess fails I think a message box is needed... I will fix it
if (!self()->process_PS_->start(KProcess::NotifyOnExit,KProcess::All))
kdError() << "Failed to query for running KLinkStatus instances!" << endl;
//TODO: Replace the above error with a real messagebox after the message freeze is over
else
{
//To avoid lock-ups, start a timer.
QTimer* timer = new QTimer(self());
connect(timer, SIGNAL(timeout()),
self(), SLOT(slotProcessTimeout()));
timer->start(120*1000, true);
self()->loop_started_ = true;
kapp->enter_loop();
delete timer;
}
}
void Global::slotGetScriptOutput(KProcess* /*process*/, char* buf, int buflen)
{
QCString tmp( buf, buflen + 1 );
script_output_ = QString::null;
script_output_ = QString::fromLocal8Bit(tmp).remove(" ");
}
void Global::slotGetScriptError(KProcess*, char* buf, int buflen)
{
//TODO: Implement some error handling?
Q_UNUSED(buf);
Q_UNUSED(buflen);
}
void Global::slotProcessExited(KProcess*)
{
slotProcessTimeout();
}
void Global::slotProcessTimeout()
{
if (loop_started_)
{
kapp->exit_loop();
loop_started_ = false;
}
}
#include "global.moc"
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