src/panels/terminal/terminalpanel.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2007-2010 by Peter Penz <peter.penz@gmx.at>             *
   3  *                                                                         *
   4  *   This program is free software; you can redistribute it and/or modify  *
   5  *   it under the terms of the GNU General Public License as published by  *
   6  *   the Free Software Foundation; either version 2 of the License, or     *
   7  *   (at your option) any later version.                                   *
   8  *                                                                         *
   9  *   This program is distributed in the hope that it will be useful,       *
  10  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  11  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  12  *   GNU General Public License for more details.                          *
  13  *                                                                         *
  14  *   You should have received a copy of the GNU General Public License     *
  15  *   along with this program; if not, write to the                         *
  16  *   Free Software Foundation, Inc.,                                       *
  17  *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA            *
  18  ***************************************************************************/
  19
  20 #include "terminalpanel.h"
  21
  22 #include <kpluginloader.h>
  23 #include <kpluginfactory.h>
  24 #include <kde_terminal_interface_v2.h>
  25 #include <kparts/part.h>
  26 #include <kshell.h>
  27 #include <kio/job.h>
  28 #include <KIO/JobUiDelegate>
  29
  30 #include <QBoxLayout>
  31 #include <QShowEvent>
  32
  33 TerminalPanel::TerminalPanel(QWidget* parent) :
  34     Panel(parent),
  35     m_clearTerminal(true),
  36     m_mostLocalUrlJob(0),
  37     m_layout(0),
  38     m_terminal(0),
  39     m_terminalWidget(0)
  40 {
  41     m_layout = new QVBoxLayout(this);
  42     m_layout->setMargin(0);
  43 }
  44
  45 TerminalPanel::~TerminalPanel()
  46 {
  47 }
  48
  49 QSize TerminalPanel::sizeHint() const
  50 {
  51     QSize size = Panel::sizeHint();
  52     size.setHeight(200);
  53     return size;
  54 }
  55
  56 void TerminalPanel::terminalExited()
  57 {
  58     emit hideTerminalPanel();
  59     m_terminal = 0;
  60 }
  61
  62 bool TerminalPanel::urlChanged()
  63 {
  64     if (!url().isValid()) {
  65         return false;
  66     }
  67
  68     const bool sendInput = (m_terminal != 0)
  69                            && (m_terminal->foregroundProcessId() == -1)
  70                            && isVisible();
  71     if (sendInput) {
  72         changeDir(url());
  73     }
  74
  75     return true;
  76 }
  77
  78 void TerminalPanel::showEvent(QShowEvent* event)
  79 {
  80     if (event->spontaneous()) {
  81         Panel::showEvent(event);
  82         return;
  83     }
  84
  85     if (m_terminal == 0) {
  86         m_clearTerminal = true;
  87         KPluginFactory* factory = KPluginLoader("libkonsolepart").factory();
  88         KParts::ReadOnlyPart* part = factory ? (factory->create<KParts::ReadOnlyPart>(this)) : 0;
  89         if (part != 0) {
  90             connect(part, SIGNAL(destroyed(QObject*)), this, SLOT(terminalExited()));
  91             m_terminalWidget = part->widget();
  92             m_layout->addWidget(m_terminalWidget);
  93             m_terminal = qobject_cast<TerminalInterfaceV2 *>(part);
  94         }
  95     }
  96     if (m_terminal != 0) {
  97         m_terminal->showShellInDir(url().toLocalFile());
  98         changeDir(url());
  99         m_terminalWidget->setFocus();
 100     }
 101
 102     Panel::showEvent(event);
 103 }
 104
 105 void TerminalPanel::changeDir(const KUrl& url)
 106 {
 107     delete m_mostLocalUrlJob;
 108     m_mostLocalUrlJob = 0;
 109
 110     if (url.isLocalFile()) {
 111         sendCdToTerminal(url.toLocalFile());
 112     } else {
 113         m_mostLocalUrlJob = KIO::mostLocalUrl(url, KIO::HideProgressInfo);
 114         m_mostLocalUrlJob->ui()->setWindow(this);
 115         connect(m_mostLocalUrlJob, SIGNAL(result(KJob*)), this, SLOT(slotMostLocalUrlResult(KJob*)));
 116     }
 117 }
 118
 119 void TerminalPanel::sendCdToTerminal(const QString& dir)
 120 {
 121     if (!m_clearTerminal) {
 122         // The TerminalV2 interface does not provide a way to delete the
 123         // current line before sending a new input. This is mandatory,
 124         // otherwise sending a 'cd x' to a existing 'rm -rf *' might
 125         // result in data loss. As workaround Ctrl+C is send.
 126         QString cancel;
 127         cancel.append(QChar(3));
 128         cancel.append(QChar('c'));
 129         m_terminal->sendInput(cancel);
 130     }
 131
 132     m_terminal->sendInput("cd " + KShell::quoteArg(dir) + '\n');
 133
 134     if (m_clearTerminal) {
 135         m_terminal->sendInput("clear\n");
 136         m_clearTerminal = false;
 137     }
 138 }
 139
 140 void TerminalPanel::slotMostLocalUrlResult(KJob* job)
 141 {
 142     KIO::StatJob* statJob = static_cast<KIO::StatJob *>(job);
 143     const KUrl url = statJob->mostLocalUrl();
 144     if (url.isLocalFile()) {
 145         sendCdToTerminal(url.toLocalFile());
 146     }
 147
 148     m_mostLocalUrlJob = 0;
 149 }
 150
 151 #include "terminalpanel.moc"