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/***************************************************************************
* Copyright (C) 2002 by Wilco Greven <greven@kde.org> *
* Copyright (C) 2003 by Christophe Devriese *
* <Christophe.Devriese@student.kuleuven.ac.be> *
* Copyright (C) 2003 by Laurent Montel <montel@kde.org> *
* Copyright (C) 2003-2007 by Albert Astals Cid <aacid@kde.org> *
* Copyright (C) 2004 by Andy Goossens <andygoossens@telenet.be> *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
***************************************************************************/
#include "okular_main.h"
#include "shell.h"
#include <kapplication.h>
#include <klocale.h>
#include <QtDBus/qdbusinterface.h>
#include <QTextStream>
#include <kwindowsystem.h>
#include "aboutdata.h"
#include "shellutils.h"
static bool attachUniqueInstance(const QStringList &paths, const QString &serializedOptions)
{
if (!ShellUtils::unique(serializedOptions) || paths.count() != 1)
return false;
QDBusInterface iface("org.kde.okular", "/okularshell", "org.kde.okular");
if (!iface.isValid())
return false;
const QString page = ShellUtils::page(serializedOptions);
iface.call("openDocument", ShellUtils::urlFromArg(paths[0], ShellUtils::qfileExistFunc(), page).url(), serializedOptions);
if (!ShellUtils::noRaise(serializedOptions)) {
iface.call("tryRaise");
}
return true;
}
// Ask an existing non-unique instance to open new tabs
static bool attachExistingInstance(const QStringList &paths, const QString &serializedOptions)
{
if ( paths.count() < 1 )
return false;
const QStringList services = QDBusConnection::sessionBus().interface()->registeredServiceNames().value();
// Don't match the service without trailing "-" (unique instance)
const QString pattern = "org.kde.okular-";
const QString myPid = QString::number( kapp->applicationPid() );
QScopedPointer<QDBusInterface> bestService;
const int desktop = KWindowSystem::currentDesktop();
// Select the first instance that isn't us (metric may change in future)
foreach ( const QString& service, services )
{
if ( service.startsWith(pattern) && !service.endsWith( myPid ) )
{
bestService.reset( new QDBusInterface(service, "/okularshell", "org.kde.okular") );
// Find a window that can handle our documents
const QDBusReply<bool> reply = bestService->call( "canOpenDocs", paths.count(), desktop );
if( reply.isValid() && reply.value() )
break;
bestService.reset();
}
}
if ( !bestService )
return false;
foreach( const QString &arg, paths )
{
// Copy stdin to temporary file which can be opened by the existing
// window. The temp file is automatically deleted after it has been
// opened. Not sure if this behavior is safe on all platforms.
QScopedPointer<QTemporaryFile> tempFile;
QString path;
if( arg == "-" )
{
tempFile.reset( new QTemporaryFile );
QFile stdinFile;
if( !tempFile->open() || !stdinFile.open(stdin,QIODevice::ReadOnly) )
return false;
const size_t bufSize = 1024*1024;
QScopedPointer<char,QScopedPointerArrayDeleter<char> > buf( new char[bufSize] );
size_t bytes;
do
{
bytes = stdinFile.read( buf.data(), bufSize );
tempFile->write( buf.data(), bytes );
} while( bytes != 0 );
path = tempFile->fileName();
}
else
{
// Page only makes sense if we are opening one file
const QString page = paths.count() == 1 ? ShellUtils::page(serializedOptions) : QString();
path = ShellUtils::urlFromArg(arg, ShellUtils::qfileExistFunc(), page).url();
}
// Returns false if it can't fit another document
const QDBusReply<bool> reply = bestService->call( "openDocument", path, serializedOptions );
if( !reply.isValid() || !reply.value() )
return false;
}
bestService->call( "tryRaise" );
return true;
}
namespace Okular {
Status main(const QStringList &paths, const QString &serializedOptions)
{
if (ShellUtils::unique(serializedOptions) && paths.count() > 1)
{
QTextStream stream(stderr);
stream << i18n( "Error: Can't open more than one document with the --unique switch" ) << endl;
return Error;
}
// try to attach to existing session, unique or not
if (attachUniqueInstance(paths, serializedOptions) || attachExistingInstance(paths, serializedOptions))
{
return AttachedOtherProcess;
}
Shell* shell = new Shell( serializedOptions );
if ( !shell->isValid() )
{
return Error;
}
shell->show();
for ( int i = 0; i < paths.count(); )
{
// Page only makes sense if we are opening one file
const QString page = paths.count() == 1 ? ShellUtils::page(serializedOptions) : QString();
if ( shell->openDocument( ShellUtils::urlFromArg(paths[i], ShellUtils::qfileExistFunc(), page).url(), serializedOptions) )
{
++i;
}
else
{
shell = new Shell( serializedOptions );
if ( !shell->isValid() )
{
return Error;
}
shell->show();
}
}
return Success;
}
}
/* kate: replace-tabs on; indent-width 4; */
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