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 <klibloader.h>
  23 #include <kde_terminal_interface_v2.h>
  24 #include <kparts/part.h>
  25 #include <kshell.h>
  26 #include <kio/job.h>
  27 #include <KIO/JobUiDelegate>
  28
  29 #include <QBoxLayout>
  30 #include <QShowEvent>
  31
  32 TerminalPanel::TerminalPanel(QWidget* parent) :
  33     Panel(parent),
  34     m_clearTerminal(true),
  35     m_mostLocalUrlJob(0),
  36     m_layout(0),
  37     m_terminal(0),
  38     m_terminalWidget(0)
  39 {
  40     m_layout = new QVBoxLayout(this);
  41     m_layout->setMargin(0);
  42 }
  43
  44 TerminalPanel::~TerminalPanel()
  45 {
  46 }
  47
  48 QSize TerminalPanel::sizeHint() const
  49 {
  50     QSize size = Panel::sizeHint();
  51     size.setHeight(200);
  52     return size;
  53 }
  54
  55 void TerminalPanel::terminalExited()
  56 {
  57     emit hideTerminalPanel();
  58     m_terminal = 0;
  59 }
  60
  61 bool TerminalPanel::urlChanged()
  62 {
  63     if (!url().isValid()) {
  64         return false;
  65     }
  66
  67     const bool sendInput = (m_terminal != 0)
  68                            && (m_terminal->foregroundProcessId() == -1)
  69                            && isVisible();
  70     if (sendInput) {
  71         changeDir(url());
  72     }
  73
  74     return true;
  75 }
  76
  77 void TerminalPanel::showEvent(QShowEvent* event)
  78 {
  79     if (event->spontaneous()) {
  80         Panel::showEvent(event);
  81         return;
  82     }
  83
  84     if (m_terminal == 0) {
  85         m_clearTerminal = true;
  86         KPluginFactory* factory = KPluginLoader("libkonsolepart").factory();
  87         KParts::ReadOnlyPart* part = factory ? (factory->create<KParts::ReadOnlyPart>(this)) : 0;
  88         if (part != 0) {
  89             connect(part, SIGNAL(destroyed(QObject*)), this, SLOT(terminalExited()));
  90             m_terminalWidget = part->widget();
  91             m_layout->addWidget(m_terminalWidget);
  92             m_terminal = qobject_cast<TerminalInterfaceV2 *>(part);
  93         }
  94     }
  95     if (m_terminal != 0) {
  96         m_terminal->showShellInDir(url().toLocalFile());
  97         changeDir(url());
  98         m_terminalWidget->setFocus();
  99     }
 100
 101     Panel::showEvent(event);
 102 }
 103
 104 void TerminalPanel::changeDir(const KUrl& url)
 105 {
 106     delete m_mostLocalUrlJob;
 107     m_mostLocalUrlJob = 0;
 108
 109     if (url.isLocalFile()) {
 110         sendCdToTerminal(url.toLocalFile());
 111     } else {
 112         m_mostLocalUrlJob = KIO::mostLocalUrl(url, KIO::HideProgressInfo);
 113         m_mostLocalUrlJob->ui()->setWindow(this);
 114         connect(m_mostLocalUrlJob, SIGNAL(result(KJob*)), this, SLOT(slotMostLocalUrlResult(KJob*)));
 115     }
 116 }
 117
 118 void TerminalPanel::sendCdToTerminal(const QString& dir)
 119 {
 120     if (!m_clearTerminal) {
 121         // The TerminalV2 interface does not provide a way to delete the
 122         // current line before sending a new input. This is mandatory,
 123         // otherwise sending a 'cd x' to a existing 'rm -rf *' might
 124         // result in data loss. As workaround Ctrl+C is send.
 125         QString cancel;
 126         cancel.append(QChar(3));
 127         cancel.append(QChar('c'));
 128         m_terminal->sendInput(cancel);
 129     }
 130
 131     m_terminal->sendInput("cd " + KShell::quoteArg(dir) + '\n');
 132
 133     if (m_clearTerminal) {
 134         m_terminal->sendInput("clear\n");
 135         m_clearTerminal = false;
 136     }
 137 }
 138
 139 void TerminalPanel::slotMostLocalUrlResult(KJob* job)
 140 {
 141     KIO::StatJob* statJob = static_cast<KIO::StatJob *>(job);
 142     const KUrl url = statJob->mostLocalUrl();
 143     if (url.isLocalFile()) {
 144         sendCdToTerminal(url.toLocalFile());
 145     }
 146
 147     m_mostLocalUrlJob = 0;
 148 }
 149
 150 #include "terminalpanel.moc"