mirror of
https://invent.kde.org/graphics/okular
synced 2024-11-05 18:34:53 +00:00
189 lines
6.7 KiB
C++
189 lines
6.7 KiB
C++
/***************************************************************************
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* Copyright (C) 2002 by Wilco Greven <greven@kde.org> *
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* Copyright (C) 2003 by Christophe Devriese *
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* <Christophe.Devriese@student.kuleuven.ac.be> *
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* Copyright (C) 2003 by Laurent Montel <montel@kde.org> *
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* Copyright (C) 2003-2007 by Albert Astals Cid <aacid@kde.org> *
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* Copyright (C) 2004 by Andy Goossens <andygoossens@telenet.be> *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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***************************************************************************/
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#include "okular_main.h"
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#include "shell.h"
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#include <QtWidgets/qapplication.h>
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#include <KLocalizedString>
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#include <QtDBus/qdbusinterface.h>
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#include <QTextStream>
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#include <kwindowsystem.h>
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#include "aboutdata.h"
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#include "shellutils.h"
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static bool attachUniqueInstance(const QStringList &paths, const QString &serializedOptions)
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{
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if (!ShellUtils::unique(serializedOptions) || paths.count() != 1)
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return false;
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QDBusInterface iface(QStringLiteral("org.kde.okular"), QStringLiteral("/okularshell"), QStringLiteral("org.kde.okular"));
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if (!iface.isValid())
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return false;
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const QString page = ShellUtils::page(serializedOptions);
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iface.call(QStringLiteral("openDocument"), ShellUtils::urlFromArg(paths[0], ShellUtils::qfileExistFunc(), page).url(), serializedOptions);
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if (!ShellUtils::noRaise(serializedOptions)) {
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iface.call(QStringLiteral("tryRaise"));
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}
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return true;
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}
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// Ask an existing non-unique instance to open new tabs
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static bool attachExistingInstance(const QStringList &paths, const QString &serializedOptions)
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{
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if ( paths.count() < 1 )
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return false;
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const QStringList services = QDBusConnection::sessionBus().interface()->registeredServiceNames().value();
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// Don't match the service without trailing "-" (unique instance)
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const QString pattern = QStringLiteral("org.kde.okular-");
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const QString myPid = QString::number( qApp->applicationPid() );
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QScopedPointer<QDBusInterface> bestService;
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const int desktop = KWindowSystem::currentDesktop();
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// Select the first instance that isn't us (metric may change in future)
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foreach ( const QString& service, services )
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{
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if ( service.startsWith(pattern) && !service.endsWith( myPid ) )
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{
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bestService.reset( new QDBusInterface(service, QStringLiteral("/okularshell"), QStringLiteral("org.kde.okular")) );
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// Find a window that can handle our documents
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const QDBusReply<bool> reply = bestService->call( QStringLiteral("canOpenDocs"), paths.count(), desktop );
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if( reply.isValid() && reply.value() )
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break;
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bestService.reset();
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}
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}
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if ( !bestService )
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return false;
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foreach( const QString &arg, paths )
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{
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// Copy stdin to temporary file which can be opened by the existing
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// window. The temp file is automatically deleted after it has been
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// opened. Not sure if this behavior is safe on all platforms.
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QScopedPointer<QTemporaryFile> tempFile;
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QString path;
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if( arg == QLatin1String("-") )
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{
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tempFile.reset( new QTemporaryFile );
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QFile stdinFile;
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if( !tempFile->open() || !stdinFile.open(stdin,QIODevice::ReadOnly) )
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return false;
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const size_t bufSize = 1024*1024;
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QScopedPointer<char,QScopedPointerArrayDeleter<char> > buf( new char[bufSize] );
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size_t bytes;
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do
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{
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bytes = stdinFile.read( buf.data(), bufSize );
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tempFile->write( buf.data(), bytes );
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} while( bytes != 0 );
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path = tempFile->fileName();
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}
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else
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{
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// Page only makes sense if we are opening one file
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const QString page = ShellUtils::page(serializedOptions);
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path = ShellUtils::urlFromArg(arg, ShellUtils::qfileExistFunc(), page).url();
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}
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// Returns false if it can't fit another document
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const QDBusReply<bool> reply = bestService->call( QStringLiteral("openDocument"), path, serializedOptions );
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if( !reply.isValid() || !reply.value() )
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return false;
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}
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bestService->call( QStringLiteral("tryRaise") );
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return true;
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}
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namespace Okular {
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Status main(const QStringList &paths, const QString &serializedOptions)
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{
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if (ShellUtils::unique(serializedOptions) && paths.count() > 1)
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{
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QTextStream stream(stderr);
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stream << i18n( "Error: Can't open more than one document with the --unique switch" ) << endl;
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return Error;
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}
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if (ShellUtils::startInPresentation(serializedOptions) && paths.count() > 1)
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{
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QTextStream stream(stderr);
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stream << i18n( "Error: Can't open more than one document with the --presentation switch" ) << endl;
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return Error;
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}
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if (ShellUtils::showPrintDialog(serializedOptions) && paths.count() > 1)
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{
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QTextStream stream(stderr);
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stream << i18n( "Error: Can't open more than one document with the --print switch" ) << endl;
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return Error;
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}
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if (!ShellUtils::page(serializedOptions).isEmpty() && paths.count() > 1)
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{
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QTextStream stream(stderr);
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stream << i18n( "Error: Can't open more than one document with the --page switch" ) << endl;
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return Error;
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}
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// try to attach to existing session, unique or not
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if (attachUniqueInstance(paths, serializedOptions) || attachExistingInstance(paths, serializedOptions))
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{
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return AttachedOtherProcess;
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}
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Shell* shell = new Shell( serializedOptions );
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if ( !shell->isValid() )
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{
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return Error;
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}
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shell->show();
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for ( int i = 0; i < paths.count(); )
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{
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// Page only makes sense if we are opening one file
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const QString page = ShellUtils::page(serializedOptions);
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if ( shell->openDocument( ShellUtils::urlFromArg(paths[i], ShellUtils::qfileExistFunc(), page), serializedOptions) )
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{
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++i;
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}
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else
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{
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shell = new Shell( serializedOptions );
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if ( !shell->isValid() )
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{
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return Error;
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}
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shell->show();
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}
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}
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return Success;
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}
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}
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/* kate: replace-tabs on; indent-width 4; */
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