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     m_terminal = 0;
  54     emit hideTerminalPanel();
  55 }
  56
  57 void TerminalPanel::dockVisibilityChanged()
  58 {
  59     // Only react when the DockWidget itself (not some parent) is hidden. This way we don't
  60     // respond when e.g. Dolphin is minimized.
  61     if (parentWidget() && parentWidget()->isHidden() &&
  62         m_terminal && (m_terminal->foregroundProcessId() == -1)) {
  63         // Make sure this terminal does not prevent unmounting any removable drives
  64         changeDir(KUrl::fromPath("/"));
  65     }
  66 }
  67
  68 bool TerminalPanel::urlChanged()
  69 {
  70     if (!url().isValid()) {
  71         return false;
  72     }
  73
  74     const bool sendInput = m_terminal && (m_terminal->foregroundProcessId() == -1) && isVisible();
  75     if (sendInput) {
  76         changeDir(url());
  77     }
  78
  79     return true;
  80 }
  81
  82 void TerminalPanel::showEvent(QShowEvent* event)
  83 {
  84     if (event->spontaneous()) {
  85         Panel::showEvent(event);
  86         return;
  87     }
  88
  89     if (!m_terminal) {
  90         m_clearTerminal = true;
  91         KPluginFactory* factory = KPluginLoader("libkonsolepart").factory();
  92         KParts::ReadOnlyPart* part = factory ? (factory->create<KParts::ReadOnlyPart>(this)) : 0;
  93         if (part) {
  94             connect(part, SIGNAL(destroyed(QObject*)), this, SLOT(terminalExited()));
  95             m_terminalWidget = part->widget();
  96             m_layout->addWidget(m_terminalWidget);
  97             m_terminal = qobject_cast<TerminalInterfaceV2 *>(part);
  98         }
  99     }
 100     if (m_terminal) {
 101         m_terminal->showShellInDir(url().toLocalFile());
 102         changeDir(url());
 103         m_terminalWidget->setFocus();
 104     }
 105
 106     Panel::showEvent(event);
 107 }
 108
 109 void TerminalPanel::changeDir(const KUrl& url)
 110 {
 111     delete m_mostLocalUrlJob;
 112     m_mostLocalUrlJob = 0;
 113
 114     if (url.isLocalFile()) {
 115         sendCdToTerminal(url.toLocalFile());
 116     } else {
 117         m_mostLocalUrlJob = KIO::mostLocalUrl(url, KIO::HideProgressInfo);
 118         if (m_mostLocalUrlJob->ui()) {
 119             m_mostLocalUrlJob->ui()->setWindow(this);
 120         }
 121         connect(m_mostLocalUrlJob, SIGNAL(result(KJob*)), this, SLOT(slotMostLocalUrlResult(KJob*)));
 122     }
 123 }
 124
 125 void TerminalPanel::sendCdToTerminal(const QString& dir)
 126 {
 127     if (!m_clearTerminal) {
 128         // The TerminalV2 interface does not provide a way to delete the
 129         // current line before sending a new input. This is mandatory,
 130         // otherwise sending a 'cd x' to a existing 'rm -rf *' might
 131         // result in data loss. As workaround SIGINT is send.
 132         const int processId = m_terminal->terminalProcessId();
 133         if (processId > 0) {
 134             kill(processId, SIGINT);
 135         }
 136     }
 137
 138     m_terminal->sendInput("cd " + KShell::quoteArg(dir) + '\n');
 139
 140     if (m_clearTerminal) {
 141         m_terminal->sendInput("clear\n");
 142         m_clearTerminal = false;
 143     }
 144 }
 145
 146 void TerminalPanel::slotMostLocalUrlResult(KJob* job)
 147 {
 148     KIO::StatJob* statJob = static_cast<KIO::StatJob *>(job);
 149     const KUrl url = statJob->mostLocalUrl();
 150     if (url.isLocalFile()) {
 151         sendCdToTerminal(url.toLocalFile());
 152     }
 153
 154     m_mostLocalUrlJob = 0;
 155 }
 156
 157 #include "terminalpanel.moc"