File indexing completed on 2024-05-19 05:28:21

 /*
     This file is part of Konsole QML plugin,
     which is a terminal emulator from KDE.
 
     SPDX-FileCopyrightText: 2013 Dmitry Zagnoyko <hiroshidi@gmail.com>
 
     SPDX-License-Identifier: GPL-2.0-or-later
 
     This program 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.
 
     You should have received a copy of the GNU General Public License
     along with this program; if not, write to the Free Software
     Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
     02110-1301  USA.
 */
 
 // Own
 #include "TerminalSession.h"
 
 // Qt
 #include <QTextCodec>
 
 // Konsole
 #include "HistorySearch.h"
 #include "KeyboardTranslator.h"
 
 TerminalSession::TerminalSession(QObject *parent)
     : QObject(parent)
     , m_session(createSession(QString()))
 {
     connect(m_session.get(), &Konsole::Session::started, this, &TerminalSession::started);
     connect(m_session.get(), &Konsole::Session::finished, this, &TerminalSession::sessionFinished);
     connect(m_session.get(), &Konsole::Session::titleChanged, this, &TerminalSession::titleChanged);
 }
 
 TerminalSession::~TerminalSession()
 {
     if (m_session) {
         m_session->close();
         m_session->disconnect();
     }
 }
 
 void TerminalSession::setTitle(QString name)
 {
     m_session->setTitle(Session::NameRole, name);
 }
 
 std::unique_ptr<Session> TerminalSession::createSession(QString name)
 {
     auto session = std::make_unique<Session>();
 
     session->setTitle(Session::NameRole, name);
 
     /* Thats a freaking bad idea!!!!
      * /bin/bash is not there on every system
      * better set it to the current $SHELL
      * Maybe you can also make a list available and then let the widget-owner decide what to use.
      * By setting it to $SHELL right away we actually make the first filecheck obsolete.
      * But as iam not sure if you want to do anything else ill just let both checks in and set this to $SHELL anyway.
      */
 
     // cool-old-term: There is another check in the code. Not sure if useful.
 
     QString envshell = qEnvironmentVariable("SHELL");
     QString shellProg = !envshell.isNull() ? envshell : QStringLiteral("/bin/bash");
     session->setProgram(shellProg);
 
     setenv("TERM", "xterm", 1);
 
     // session->setProgram();
 
     QStringList args;
     session->setArguments(args);
     session->setAutoClose(true);
 
     session->setCodec(QTextCodec::codecForName("UTF-8"));
 
     session->setFlowControlEnabled(true);
     session->setHistoryType(HistoryTypeBuffer(1000));
 
     session->setDarkBackground(true);
 
     session->setKeyBindings(QString());
 
     return session;
 }
 
 /////////////////////////////////////////////////////////////////////////////////////
 /////////////////////////////////////////////////////////////////////////////////////
 
 int TerminalSession::getRandomSeed()
 {
     return m_session->sessionId() * 31;
 }
 
 void TerminalSession::addView(TerminalDisplay *display)
 {
     m_session->setView(display);
 }
 
 void TerminalSession::removeView(TerminalDisplay *display)
 {
     m_session->removeView(display);
 }
 
 void TerminalSession::sessionFinished()
 {
     Q_EMIT finished();
 }
 
 void TerminalSession::selectionChanged(bool textSelected)
 {
     Q_UNUSED(textSelected)
 }
 
 void TerminalSession::startShellProgram()
 {
     if (m_session->isRunning()) {
         return;
     }
 
     m_session->run();
 }
 
 bool TerminalSession::sendSignal(int signal)
 {
     if (!m_session->isRunning()) {
         return false;
     }
 
     return m_session->sendSignal(signal);
 }
 
 int TerminalSession::getShellPID()
 {
     return m_session->processId();
 }
 
 void TerminalSession::changeDir(const QString &dir)
 {
     /*
        this is a very hackish way of trying to determine if the shell is in
        the foreground before attempting to change the directory.  It may not
        be portable to anything other than Linux.
     */
     QString strCmd;
     strCmd.setNum(getShellPID());
     strCmd.prepend(u"ps -j ");
     strCmd.append(u" | tail -1 | awk '{ print $5 }' | grep -q \\+");
     int retval = system(strCmd.toStdString().c_str());
 
     if (!retval) {
         QString cmd = QStringLiteral(u"cd ") + dir + QStringLiteral("\n");
         sendText(cmd);
     }
 }
 
 void TerminalSession::setEnvironment(const QStringList &environment)
 {
     m_session->setEnvironment(environment);
 }
 
 QString TerminalSession::shellProgram() const
 {
     return m_session->program();
 }
 
 void TerminalSession::setShellProgram(const QString &progname)
 {
     m_session->setProgram(progname);
     Q_EMIT shellProgramChanged();
 }
 
 void TerminalSession::setInitialWorkingDirectory(const QString &dir)
 {
     if (_initialWorkingDirectory != dir) {
         _initialWorkingDirectory = dir;
         m_session->setInitialWorkingDirectory(dir);
         Q_EMIT initialWorkingDirectoryChanged();
     }
 }
 
 QString TerminalSession::getInitialWorkingDirectory()
 {
     return _initialWorkingDirectory;
 }
 
 QStringList TerminalSession::args() const
 {
     return m_session->arguments();
 }
 
 void TerminalSession::setArgs(const QStringList &args)
 {
     m_session->setArguments(args);
     Q_EMIT argsChanged();
 }
 
 void TerminalSession::setTextCodec(QTextCodec *codec)
 {
     m_session->setCodec(codec);
 }
 
 void TerminalSession::setHistorySize(int lines)
 {
     if (historySize() != lines) {
         if (lines < 0)
             m_session->setHistoryType(HistoryTypeFile());
         else
             m_session->setHistoryType(HistoryTypeBuffer(lines));
         Q_EMIT historySizeChanged();
     }
 }
 
 int TerminalSession::historySize() const
 {
     if (m_session->historyType().isUnlimited()) {
         return -1;
     } else {
         return m_session->historyType().maximumLineCount();
     }
 }
 
 QString TerminalSession::getHistory() const
 {
     QString history;
     QTextStream historyStream(&history);
     PlainTextDecoder historyDecoder;
 
     historyDecoder.begin(&historyStream);
     m_session->emulation()->writeToStream(&historyDecoder);
     historyDecoder.end();
 
     return history;
 }
 
 void TerminalSession::sendText(QString text)
 {
     m_session->sendText(text);
 }
 
 void TerminalSession::sendKey(int, int, int) const
 {
     // TODO implement or remove this function.
     //    Qt::KeyboardModifier kbm = Qt::KeyboardModifier(mod);
 
     //    QKeyEvent qkey(QEvent::KeyPress, key, kbm);
 
     //    while (rep > 0){
     //        m_session->sendKey(&qkey);
     //        --rep;
     //    }
 }
 
 void TerminalSession::clearScreen()
 {
     m_session->emulation()->clearEntireScreen();
 }
 
 void TerminalSession::search(const QString &regexp, int startLine, int startColumn, bool forwards)
 {
     HistorySearch *history = new HistorySearch(QPointer<Emulation>(m_session->emulation()), QRegExp(regexp), forwards, startColumn, startLine, this);
     connect(history, &HistorySearch::matchFound, this, &TerminalSession::matchFound);
     connect(history, &HistorySearch::noMatchFound, this, &TerminalSession::noMatchFound);
     history->search();
 }
 
 void TerminalSession::setFlowControlEnabled(bool enabled)
 {
     m_session->setFlowControlEnabled(enabled);
 }
 
 bool TerminalSession::flowControlEnabled()
 {
     return m_session->flowControlEnabled();
 }
 
 void TerminalSession::setKeyBindings(const QString &kb)
 {
     m_session->setKeyBindings(kb);
     Q_EMIT changedKeyBindings(kb);
 }
 
 QString TerminalSession::getKeyBindings()
 {
     return m_session->keyBindings();
 }
 
 QStringList TerminalSession::availableKeyBindings()
 {
     return KeyboardTranslatorManager::instance()->allTranslators();
 }
 
 QString TerminalSession::keyBindings()
 {
     return m_session->keyBindings();
 }
 
 QString TerminalSession::getTitle()
 {
     return m_session->userTitle();
 }
 
 bool TerminalSession::hasActiveProcess() const
 {
     return m_session->processId() != m_session->foregroundProcessId();
 }
 
 QString TerminalSession::foregroundProcessName()
 {
     return m_session->foregroundProcessName();
 }
 
 QString TerminalSession::currentDir()
 {
     return m_session->currentDir();
 }