src/panels/terminal/terminalpanel.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2007-2010 by Peter Penz <peter.penz19@gmail.com>        *
   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 <signal.h>
  23
  24 #include <KPluginLoader>
  25 #include <KPluginFactory>
  26 #include <kde_terminal_interface_v2.h>
  27 #include <KParts/Part>
  28 #include <KShell>
  29 #include <KIO/Job>
  30 #include <KIO/JobUiDelegate>
  31
  32 #include <QBoxLayout>
  33 #include <QShowEvent>
  34
  35 TerminalPanel::TerminalPanel(QWidget* parent) :
  36     Panel(parent),
  37     m_clearTerminal(true),
  38     m_mostLocalUrlJob(0),
  39     m_layout(0),
  40     m_terminal(0),
  41     m_terminalWidget(0)
  42 {
  43     m_layout = new QVBoxLayout(this);
  44     m_layout->setMargin(0);
  45 }
  46
  47 TerminalPanel::~TerminalPanel()
  48 {
  49 }
  50
  51 void TerminalPanel::terminalExited()
  52 {
  53     emit hideTerminalPanel();
  54     m_terminal = 0;
  55 }
  56
  57 bool TerminalPanel::urlChanged()
  58 {
  59     if (!url().isValid()) {
  60         return false;
  61     }
  62
  63     const bool sendInput = m_terminal && (m_terminal->foregroundProcessId() == -1) && isVisible();
  64     if (sendInput) {
  65         changeDir(url());
  66     }
  67
  68     return true;
  69 }
  70
  71 void TerminalPanel::showEvent(QShowEvent* event)
  72 {
  73     if (event->spontaneous()) {
  74         Panel::showEvent(event);
  75         return;
  76     }
  77
  78     if (!m_terminal) {
  79         m_clearTerminal = true;
  80         KPluginFactory* factory = KPluginLoader("libkonsolepart").factory();
  81         KParts::ReadOnlyPart* part = factory ? (factory->create<KParts::ReadOnlyPart>(this)) : 0;
  82         if (part) {
  83             connect(part, SIGNAL(destroyed(QObject*)), this, SLOT(terminalExited()));
  84             m_terminalWidget = part->widget();
  85             m_layout->addWidget(m_terminalWidget);
  86             m_terminal = qobject_cast<TerminalInterfaceV2 *>(part);
  87         }
  88     }
  89     if (m_terminal) {
  90         m_terminal->showShellInDir(url().toLocalFile());
  91         changeDir(url());
  92         m_terminalWidget->setFocus();
  93     }
  94
  95     Panel::showEvent(event);
  96 }
  97
  98 void TerminalPanel::changeDir(const KUrl& url)
  99 {
 100     delete m_mostLocalUrlJob;
 101     m_mostLocalUrlJob = 0;
 102
 103     if (url.isLocalFile()) {
 104         sendCdToTerminal(url.toLocalFile());
 105     } else {
 106         m_mostLocalUrlJob = KIO::mostLocalUrl(url, KIO::HideProgressInfo);
 107         m_mostLocalUrlJob->ui()->setWindow(this);
 108         connect(m_mostLocalUrlJob, SIGNAL(result(KJob*)), this, SLOT(slotMostLocalUrlResult(KJob*)));
 109     }
 110 }
 111
 112 void TerminalPanel::sendCdToTerminal(const QString& dir)
 113 {
 114     if (!m_clearTerminal) {
 115         // The TerminalV2 interface does not provide a way to delete the
 116         // current line before sending a new input. This is mandatory,
 117         // otherwise sending a 'cd x' to a existing 'rm -rf *' might
 118         // result in data loss. As workaround SIGINT is send.
 119         kill(m_terminal->terminalProcessId(), SIGINT);
 120     }
 121
 122     m_terminal->sendInput("cd " + KShell::quoteArg(dir) + '\n');
 123
 124     if (m_clearTerminal) {
 125         m_terminal->sendInput("clear\n");
 126         m_clearTerminal = false;
 127     }
 128 }
 129
 130 void TerminalPanel::slotMostLocalUrlResult(KJob* job)
 131 {
 132     KIO::StatJob* statJob = static_cast<KIO::StatJob *>(job);
 133     const KUrl url = statJob->mostLocalUrl();
 134     if (url.isLocalFile()) {
 135         sendCdToTerminal(url.toLocalFile());
 136     }
 137
 138     m_mostLocalUrlJob = 0;
 139 }
 140
 141 #include "terminalpanel.moc"