Reverted invalid commit 82
[qtrapids] / src / qml-client / MainWindow.cpp
diff --git a/src/qml-client/MainWindow.cpp b/src/qml-client/MainWindow.cpp
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+/***************************************************************************
+ *   Copyright (C) 2010 by Ixonos Plc   *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; version 2 of the License.               *
+ *                                                                         *
+ *   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.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+
+
+#include <qtrapids/dbus.hpp>
+
+#include <QDebug>
+#include <QtGui/QMenuBar>
+#include <QtGui/QToolBar>
+#include <QAction>
+#include <QFileDialog>
+#include <QMessageBox>
+//#include <QTreeWidgetItem>
+#include <QApplication>
+#include <QPluginLoader>
+
+#include "DownloadView.h"
+#include "SeedView.h"
+#include "PreferencesDialog.h"
+#include "ColumnSelectorDialog.h"
+
+#include "MainWindow.h"
+
+namespace qtrapids
+{
+
+const QString ABOUT_TEXT
+= QString(QObject::trUtf8("QtRapids, a simple BitTorrent client based on"
+                          "\nQt and Libtorrent."
+                          "\n\nURL: http://qtrapids.garage.maemo.org/"
+                          "\n\nAuthors:\nLassi Väätämöinen, lassi.vaatamoinen@ixonos.com"
+                          "\nDenis Zalevskiy, denis.zalewsky@gmail.com"
+                          "\n\nIxonos Plc, Finland\n"));
+
+const QString PLUGINS_DIR = "plugins";
+
+// Consturctor
+MainWindow::MainWindow() :
+               QMainWindow(), // Superclass
+               tabWidget_(NULL),
+               dlView_(NULL),
+               seedView_(NULL),
+               searchWidget_(NULL),
+               startDaemonAction_(NULL),
+               stopDaemonAction_(NULL),
+               preferencesDialog_(NULL),
+               settings_(QCoreApplication::organizationName()
+                         , QCoreApplication::applicationName()),
+               pluginDirs_(),
+               server_(QtRapidsServer::staticInterfaceName()
+                       , "/qtrapids", QDBusConnection::sessionBus())
+               //      torrentHandles_(),
+{
+       
+       setWindowTitle("QtRapids");
+       
+       // MENUBAR
+       QMenuBar *menuBar = new QMenuBar();
+       QMenu *tempMenu = NULL;
+
+       tempMenu = menuBar->addMenu(tr("&File"));
+       QAction *openAction = tempMenu->addAction(tr("&Open"));
+       QAction *removeAction = tempMenu->addAction(tr("&Remove"));
+       removeAction->setEnabled(false);
+       
+       startDaemonAction_ = tempMenu->addAction(tr("S&tart daemon"));
+       stopDaemonAction_ = tempMenu->addAction(tr("Sto&p daemon"));
+       startDaemonAction_->setEnabled(false);
+       
+       QAction *quitAction = tempMenu->addAction(tr("&Quit"));
+
+       tempMenu = menuBar->addMenu(tr("&View"));
+       QAction *columnsAction = tempMenu->addAction(tr("&Columns"));
+       
+       tempMenu = menuBar->addMenu(tr("&Settings"));
+       QAction *preferencesAction = tempMenu->addAction(tr("&Preferences"));
+
+       tempMenu = menuBar->addMenu(tr("&Help"));
+       QAction *aboutAction = tempMenu->addAction(tr("&About"));
+       QAction *aboutQtAction = tempMenu->addAction(tr("About &Qt"));
+
+       setMenuBar(menuBar);
+       connect(openAction, SIGNAL(triggered()), this, SLOT(on_openAction_clicked()));
+       connect(removeAction, SIGNAL(triggered()), this, SLOT(on_removeAction_clicked()));
+       connect(this, SIGNAL(itemSelected(bool)), removeAction, SLOT(setEnabled(bool)));
+       connect(quitAction, SIGNAL(triggered()), this, SLOT(on_quitAction_clicked()));
+       connect(startDaemonAction_, SIGNAL(triggered()), this, SLOT(on_startDaemonAction_clicked()));
+       connect(stopDaemonAction_, SIGNAL(triggered()), this, SLOT(on_stopDaemonAction_clicked()));
+       connect(columnsAction, SIGNAL(triggered()), this, SLOT(on_columnsAction_clicked()));
+       connect(preferencesAction, SIGNAL(triggered()), this, SLOT(on_preferencesAction_clicked()));
+       connect(aboutAction, SIGNAL(triggered()), this, SLOT(on_aboutAction_clicked()));
+       connect(aboutQtAction, SIGNAL(triggered()), this, SLOT(on_aboutQtAction_clicked()));
+
+       // TABWIDGET (central widget)
+       tabWidget_ = new QTabWidget();
+       tabWidget_->setTabsClosable(true);
+
+       /// @todo Exception handling
+       dlView_ = new DownloadView(this);
+       //seedView_ = new SeedView(this);
+       tabWidget_->addTab(dlView_, tr("Downloads"));
+       //tabWidget_->addTab(seedView_, tr("Seeds"));
+       connect(dlView_, SIGNAL(itemSelectionChanged()), this,
+               SLOT(on_downloadItemSelectionChanged()));
+
+       //connect(seedView_, SIGNAL(itemSelectionChanged()), this,
+       //        SLOT(on_seedItemSelectionChanged()));
+
+       // Tab widget as central widget.
+       setCentralWidget(tabWidget_);
+
+       // TOOLBAR
+       QToolBar *toolBar = new QToolBar();
+       toolBar->addAction(tr("Open"));
+       removeAction = toolBar->addAction(tr("Remove"));
+       removeAction->setEnabled(false);
+       addToolBar(Qt::BottomToolBarArea, toolBar);
+
+       connect(this, SIGNAL(itemSelected(bool)), removeAction,
+               SLOT(setEnabled(bool)));
+       connect(toolBar, SIGNAL(actionTriggered(QAction*)), this,
+               SLOT(handleToolBarAction(QAction*)));
+       connect (tabWidget_, SIGNAL(tabCloseRequested(int)), this, SLOT(on_tabWidget_tabCloseRequested(int)));
+
+       connect(&server_, SIGNAL(alert(qtrapids::TorrentState, qtrapids::ParamsMap_t)), 
+                                       this, SLOT(on_alert(qtrapids::TorrentState, qtrapids::ParamsMap_t)));
+       
+       connect(&server_, SIGNAL(sessionTerminated()), this, SLOT(on_serverTerminated()));
+       
+//     connect(&btSession_, SIGNAL(alert(std::auto_ptr<Alert>)),
+//             this, SLOT(on_alert(std::auto_ptr<Alert>)));
+
+
+       LoadPlugins();
+
+}
+
+
+MainWindow::~MainWindow()
+{
+       settings_.setValue("geometry", saveGeometry());
+}
+
+// ===================== Implements PluginInterface =========================
+/// @todo add PluginInterface parameter to request plugin name 
+bool MainWindow::setGui(QWidget* widget, PluginWidgetType type, qtrapids::PluginInterface* plugin)
+{
+#ifdef QTRAPIDS_DEBUG
+       qDebug() << "MainWindow::setGui():" << dlView_->currentItem();
+#endif
+
+       if (plugin && plugin->identifier() == "SearchPlugin") {
+               searchWidget_ = widget;
+       } else {
+               return false;
+       }
+       
+       tabWidget_->addTab(widget, tr("Search"));
+       return true;
+}
+
+/// @todo Add PluginInterface parameter to check which plugin gives the widget, to handle appropriately
+void MainWindow::addPluginWidget(QWidget* widget, PluginWidgetType type)
+{
+#ifdef QTRAPIDS_DEBUG
+       qDebug() << "MainWindow::addPluginWidget():" << dlView_->currentItem();
+#endif
+
+       if (type == qtrapids::PluginHostInterface::TAB_PAGE) {
+               int index = tabWidget_->addTab(widget, tr("Results"));
+               tabWidget_->setCurrentIndex(index);
+               //layout_->addWidget(widget);
+       }
+}
+void MainWindow::addToolbar(QWidget* widget, PluginWidgetType type)
+{
+}
+
+void MainWindow::addToolItem(QWidget* widget, PluginWidgetType type)
+{
+}
+
+void MainWindow::addMenu(QWidget* widget, PluginWidgetType type)
+{
+}
+
+void MainWindow::addMenuItem(QWidget* widget, PluginWidgetType type)
+{
+}
+
+bool MainWindow::eventRequest(QVariant param, PluginRequest req)
+{
+       if (req == qtrapids::PluginHostInterface::OPEN_FILE) {
+               QString sourceFile = param.toString();
+               
+               // Get the source files name from the full path:
+               QFileInfo fInfo(sourceFile);
+               QString targetFile = fInfo.fileName();
+               targetFile = settings_.value("download/directory").toString() + "/" + targetFile;
+               
+               // Copy temoporary file to Downloads directory...
+               if (!QFile::copy(sourceFile, targetFile)) {
+                       qDebug() << "File copying failed";
+                       return false;
+               } else {
+                       // If copying was successful, remove the original temporary file.
+                       QFile::remove(sourceFile);
+               }
+               
+               /// @todo Torrent bencoding validity should be checked before starting(?)
+               // ...and start the torrent:
+               on_torrentFileSelected(targetFile);
+       
+       } else if (req == qtrapids::PluginHostInterface::READ_BUFFER) {
+               // Create torrent information from char* buffer and start.
+               StartTorrentFromBufferData(param.toByteArray().constData(), param.toByteArray().size());
+       }
+       
+       return true;
+}
+
+
+//=========================== PRIVATE ================================
+
+void MainWindow::LoadPlugins()
+{
+       // Get plugin directories from 
+       QStringList pluginDirsTmp = settings_.value("plugins/path").toStringList();
+       QStringList nameFilters("*.so");
+       
+       /// @todo enable "application directory" for plugin search in development/debug mode only. In release version
+       /// search plugins directory under $HOME/.qtrapids or system library paths
+       pluginDirsTmp << qApp->applicationDirPath();
+       pluginDirsTmp.removeDuplicates();
+       
+       foreach (QString dir, pluginDirsTmp) {
+               pluginDirs_.append(QDir(dir));
+       }
+       
+       foreach (QDir dir, pluginDirs_) {
+               
+               if (dir.cd(PLUGINS_DIR)) {
+                       
+                       foreach (QString fileName, dir.entryList(nameFilters, QDir::Files)) {
+                               QPluginLoader pluginLoader(dir.absoluteFilePath(fileName));
+
+                               // If plugin not loaded from another directory, then load
+                               if (!pluginFileNames_.contains(fileName) && QLibrary::isLibrary(fileName)) {
+
+                                       if (pluginLoader.load()) {
+                                               qDebug() << "Plugin loaded: "  << fileName;
+                                       } else {
+                                               qWarning() << "Plugin load failed: " << pluginLoader.errorString();
+                                       }
+
+                                       QObject *baseInstance = pluginLoader.instance();
+                                       if (!baseInstance) {
+                                               qDebug() << "Base instance = NULL.";
+                                       }
+
+                                       qtrapids::PluginInterface *plugin = qobject_cast<qtrapids::PluginInterface*>(baseInstance);
+
+                                       if (!plugin) {
+                                               qDebug() << "Cast failed.";
+                                       } else {
+                                               qtrapids::PluginInterface::Info info;
+                                               info.directory = dir.path();
+                                               qDebug() << dir.path();
+                                               plugin->initialize(this, info);
+                                               pluginFileNames_ += fileName;
+                                       }
+                               } else {
+                                       qWarning() << "Plugin " 
+                                               << fileName 
+                                               << " already loaded from another directory, or not a valid library file";
+                               }
+                       }
+                       
+               } else {
+                       qWarning() << PLUGINS_DIR <<  "directory not accessible or does not exist in "  << dir.path();
+               }
+       }
+}
+
+
+void MainWindow::RestoreSettings()
+{
+       
+       // Restore previous main window geometry:
+       QVariant geometry(settings_.value("geometry"));
+       if (!geometry.isNull()) {
+               qDebug() << "restoring geometry";
+               restoreGeometry(geometry.toByteArray());
+       }
+       
+       // Restore DownloadView columns:
+       dlView_->restoreView();
+       
+       // Restore torrent session settings to server:
+       qtrapids::ParamsMap_t options;
+       options["net/downloadRate"] = settings_.value("net/downloadRate").toString();
+       options["net/uploadRate"] = settings_.value("net/uploadRate").toString();
+       server_.setOptions(options);
+}
+
+
+// Opens torrent information from buffer data and adds torrent to session 
+void MainWindow::StartTorrentFromBufferData(char const* data, int size)
+{
+
+}
+
+// =========================== PRIVATE SLOTS =================================
+void MainWindow::on_openAction_clicked()
+{
+       QString filename = QFileDialog::getOpenFileName( this, tr("Open torrent file"), QString(), tr("Torrent files (*.torrent)") );
+       on_torrentFileSelected(filename);
+       /*
+       QFileDialog *dialog = new QFileDialog( this, "Open torrent file", QString(), tr("Torrent files (*.torrent)"));
+       dialog->setFileMode(QFileDialog::ExistingFile);
+       connect(dialog, SIGNAL(fileSelected(const QString&)), this, SLOT(on_torrentFileSelected(const QString&)));
+       dialog->show();
+       */
+}
+
+void MainWindow::on_removeAction_clicked()
+{
+       QString hash = dlView_->prepareRemoveSelected();
+       try {
+               server_.removeTorrent(hash);
+       } catch (...) {
+               qDebug() << "Exception while removing torrent";
+       }
+}
+
+
+void MainWindow::on_quitAction_clicked()
+{
+       close();
+}
+
+
+void MainWindow::on_startDaemonAction_clicked()
+{
+       server_.getState();
+       /// @todo create signal that signals server startup and 
+       /// enable controls in the handler slot
+       stopDaemonAction_->setEnabled(true);
+       startDaemonAction_->setEnabled(false);
+}
+
+
+void MainWindow::on_stopDaemonAction_clicked()
+{
+       server_.terminateSession();
+}
+
+
+void MainWindow::on_serverTerminated()
+{
+       stopDaemonAction_->setEnabled(false);
+       startDaemonAction_->setEnabled(true);
+}
+
+void MainWindow::on_columnsAction_clicked()
+{      
+       ColumnSelectorDialog *dialog = new ColumnSelectorDialog(dlView_);
+       dialog->show();
+       dialog->exec();
+//     dialog->raise();
+//     dialog->activateWindow();
+       qDebug() << "dialog exit";
+
+       if (dialog->result() == QDialog::Accepted) {
+       qDebug() << "saved";
+               dlView_->saveView();
+       }
+}
+
+
+void MainWindow::on_preferencesAction_clicked()
+{
+       if (!preferencesDialog_) {
+               preferencesDialog_ = new PreferencesDialog(this, 0, &server_);
+       }
+
+       preferencesDialog_->show();
+       preferencesDialog_->raise();
+       preferencesDialog_->activateWindow();
+}
+
+
+void MainWindow::on_aboutAction_clicked()
+{
+       QMessageBox::about(this, tr("About QtRapids"), ABOUT_TEXT);
+}
+
+
+void MainWindow::on_aboutQtAction_clicked()
+{
+       QMessageBox::aboutQt (this, tr("About Qt"));
+}
+
+
+void MainWindow::on_tabWidget_tabCloseRequested(int index)
+{
+       
+       int searchWidgetIndex = tabWidget_->indexOf(searchWidget_);
+       
+       // Allow closing other tabs than the first two
+       // TODO The first two may well be closable, just add "show tabs" action for these in the menu
+       if (index != 0 && index != 1 && index != searchWidgetIndex) {
+               QWidget *remove = tabWidget_->widget(index);
+               tabWidget_->removeTab(index);
+               delete remove;
+               remove = NULL;
+       }
+}
+
+
+void MainWindow::on_downloadItemSelectionChanged()
+{
+#ifdef QTRAPIDS_DEBUG
+       qDebug() << "MainWindow::on_seedItemSelectionChanged():" << dlView_->currentItem();
+#endif
+       if (dlView_->currentItem() != NULL) {
+               emit(itemSelected(true));
+       } else {
+               emit(itemSelected(false));
+       }
+}
+
+
+void MainWindow::on_seedItemSelectionChanged()
+{
+#ifdef QTRAPIDS_DEBUG
+       qDebug() << "MainWindow::on_seedItemSelectionChanged():" << seedView_->currentItem();
+#endif
+       if (seedView_->currentItem() != NULL) {
+               emit(itemSelected(true));
+       } else {
+               emit(itemSelected(false));
+       }
+}
+
+
+void MainWindow::handleToolBarAction(QAction* action)
+{
+       if (action->text() == "Open") {
+               on_openAction_clicked();
+       } else if (action->text() == "Remove") {
+               on_removeAction_clicked();
+       }
+}
+
+
+void MainWindow::on_torrentFileSelected(QString file)
+{
+#ifdef QTRAPIDS_DEBUG
+       qDebug() << " MainWindow::on_torrentFileSelected(): " << file;
+#endif
+       // Torrent filename empty, do nothing.
+       if (file == "") {
+               return;
+       }
+
+       // Otherwise add torrent
+       // For params, see: http://www.rasterbar.com/products/libtorrent/manual.html#add-torrent
+       // save_path is the only mandatory parameter, rest are optional.
+       //addParams.storage_mode = libtorrent::storage_mode_allocate;
+       try {
+               server_.addTorrent(file, settings_.value("download/directory").toString()
+                                  , ParamsMap_t());
+       } catch (...) {
+               qDebug() << "Exception adding torrent";
+       }
+}
+
+
+void MainWindow::on_alert(qtrapids::TorrentState info, qtrapids::ParamsMap_t other_info)
+{
+#ifdef QTRAPIDS_DEBUG
+       qDebug() << "got alert";
+#endif
+       dlView_->updateItem(info, other_info);
+}
+
+} // namespace qtrapids