git.maemo.org Git - qtrapids/blob - src/gui/MainWindow.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2009 by Lassi Väätämöinen   *
   3  *   lassi.vaatamoinen@ixonos.com   *
   4  *                                                                         *
   5  *   This program is free software; you can redistribute it and/or modify  *
   6  *   it under the terms of the GNU General Public License as published by  *
   7  *   the Free Software Foundation; either version 2 of the License, or     *
   8  *   (at your option) any later version.                                   *
   9  *                                                                         *
  10  *   This program is distributed in the hope that it will be useful,       *
  11  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  13  *   GNU General Public License for more details.                          *
  14  *                                                                         *
  15  *   You should have received a copy of the GNU General Public License     *
  16  *   along with this program; if not, write to the                         *
  17  *   Free Software Foundation, Inc.,                                       *
  18  *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
  19  ***************************************************************************/
  20
  21
  22 #include <QDebug>
  23
  24 #include <QMenuBar>
  25 #include <QToolBar>
  26 #include <QAction>
  27 #include <QFileDialog>
  28 #include <QMessageBox>
  29 #include <QApplication>
  30 #include <QPluginLoader>
  31
  32 #include "DownloadView.h"
  33 #include "SeedView.h"
  34 #include "PreferencesDialog.h"
  35
  36 #include "MainWindow.h"
  37
  38 const QString ABOUT_TEXT
  39 = QString(QObject::trUtf8("QtRapids, a simple BitTorrent client based on"
  40                           "\nQt and Libtorrent."
  41                           "\n\nURL: http://qtrapids.garage.maemo.org/"
  42                           "\n\nAuthors:\nLassi Väätämöinen, lassi.vaatamoinen@ixonos.com"
  43                           "\nDenis Zalevskiy, denis.zalewsky@ixonos.com"
  44                           "\n\nIxonos Plc, Finland\n"));
  45
  46 const QString PLUGINS_DIR = "plugins";
  47
  48 // Consturctor
  49 MainWindow::MainWindow():
  50                 QMainWindow(), // Superclass
  51                 tabWidget_(NULL),
  52                 dlView_(NULL),
  53                 seedView_(NULL),
  54                 searchWidget_(NULL),
  55                 preferencesDialog_(NULL),
  56                 settings_(),
  57                 pluginDirs_(),
  58 //      torrentHandles_(),
  59                 btSession_()
  60 {
  61         // MENUBAR
  62         QMenuBar *menuBar = new QMenuBar();
  63         QMenu *tempMenu = NULL;
  64
  65         tempMenu = menuBar->addMenu(tr("&File"));
  66         QAction *openAction = tempMenu->addAction(tr("&Open"));
  67         QAction *removeAction = tempMenu->addAction(tr("&Remove"));
  68         removeAction->setEnabled(false);
  69         QAction *quitAction = tempMenu->addAction(tr("&Quit"));
  70
  71         tempMenu = menuBar->addMenu(tr("&Settings"));
  72         QAction *preferencesAction = tempMenu->addAction(tr("&Preferences"));
  73
  74         tempMenu = menuBar->addMenu(tr("&Help"));
  75         QAction *aboutAction = tempMenu->addAction(tr("&About"));
  76         QAction *aboutQtAction = tempMenu->addAction(tr("About &Qt"));
  77
  78         setMenuBar(menuBar);
  79         connect(openAction, SIGNAL(triggered()), this, SLOT(on_openAction_clicked()));
  80         connect(removeAction, SIGNAL(triggered()), this, SLOT(on_removeAction_clicked()));
  81         connect(this, SIGNAL(itemSelected(bool)), removeAction, SLOT(setEnabled(bool)));
  82         connect(quitAction, SIGNAL(triggered()), this, SLOT(on_quitAction_clicked()));
  83         connect(preferencesAction, SIGNAL(triggered()), this, SLOT(on_preferencesAction_clicked()));
  84         connect(aboutAction, SIGNAL(triggered()), this, SLOT(on_aboutAction_clicked()));
  85         connect(aboutQtAction, SIGNAL(triggered()), this, SLOT(on_aboutQtAction_clicked()));
  86
  87         // TABWIDGET (central widget)
  88         tabWidget_ = new QTabWidget();
  89         tabWidget_->setTabsClosable(true);
  90
  91         /// @todo Exception handling
  92         dlView_ = new DownloadView(this);
  93         seedView_ = new SeedView(this);
  94         tabWidget_->addTab(dlView_, tr("Downloads"));
  95         tabWidget_->addTab(seedView_, tr("Seeds"));
  96         connect(dlView_, SIGNAL(itemSelectionChanged()), this,
  97                 SLOT(on_downloadItemSelectionChanged()));
  98         connect(seedView_, SIGNAL(itemSelectionChanged()), this,
  99                 SLOT(on_seedItemSelectionChanged()));
 100
 101
 102         // Tab widget as central widget.
 103         setCentralWidget(tabWidget_);
 104
 105         // TOOLBAR
 106         QToolBar *toolBar = new QToolBar();
 107         toolBar->addAction(tr("Open"));
 108         removeAction = toolBar->addAction(tr("Remove"));
 109         removeAction->setEnabled(false);
 110         addToolBar(Qt::TopToolBarArea, toolBar);
 111
 112         connect(this, SIGNAL(itemSelected(bool)), removeAction,
 113                 SLOT(setEnabled(bool)));
 114         connect(toolBar, SIGNAL(actionTriggered(QAction*)), this,
 115                 SLOT(handleToolBarAction(QAction*)));
 116         connect (tabWidget_, SIGNAL(tabCloseRequested(int)), this, SLOT(on_tabWidget_tabCloseRequested(int)));
 117
 118         connect(&btSession_, SIGNAL(alert(std::auto_ptr<Alert>)),
 119                 this, SLOT(on_alert(std::auto_ptr<Alert>)));
 120
 121         LoadPlugins();
 122 }
 123
 124
 125 MainWindow::~MainWindow()
 126 {
 127 }
 128
 129 // ===================== Implements PluginInterface =========================
 130 /// @todo add PluginInterface parameter to request plugin name
 131 bool MainWindow::setGui(QWidget* widget, PluginWidgetType type, qtrapids::PluginInterface* plugin)
 132 {
 133 #ifdef QTRAPIDS_DEBUG
 134         qDebug() << "MainWindow::setGui():" << dlView_->currentItem();
 135 #endif
 136
 137         if (plugin && plugin->identifier() == "SearchPlugin") {
 138                 searchWidget_ = widget;
 139         } else {
 140                 return false;
 141         }
 142
 143         tabWidget_->addTab(widget, tr("Search"));
 144         return true;
 145 }
 146
 147 /// @todo Add PluginInterface parameter to check which plugin gives the widget, to handle appropriately
 148 void MainWindow::addPluginWidget(QWidget* widget, PluginWidgetType type)
 149 {
 150 #ifdef QTRAPIDS_DEBUG
 151         qDebug() << "MainWindow::addPluginWidget():" << dlView_->currentItem();
 152 #endif
 153
 154         if (type == qtrapids::PluginHostInterface::TAB_PAGE) {
 155                 int index = tabWidget_->addTab(widget, tr("Results"));
 156                 tabWidget_->setCurrentIndex(index);
 157                 //layout_->addWidget(widget);
 158         }
 159 }
 160 void MainWindow::addToolbar(QWidget* widget, PluginWidgetType type)
 161 {
 162 }
 163
 164 void MainWindow::addToolItem(QWidget* widget, PluginWidgetType type)
 165 {
 166 }
 167
 168 void MainWindow::addMenu(QWidget* widget, PluginWidgetType type)
 169 {
 170 }
 171
 172 void MainWindow::addMenuItem(QWidget* widget, PluginWidgetType type)
 173 {
 174 }
 175
 176 bool MainWindow::eventRequest(QVariant param, PluginRequest req)
 177 {
 178         if (req == qtrapids::PluginHostInterface::OPEN_FILE) {
 179                 QString sourceFile = param.toString();
 180
 181                 // Get the source files name from the full path:
 182                 QFileInfo fInfo(sourceFile);
 183                 QString targetFile = fInfo.fileName();
 184                 targetFile = settings_.value("download/directory").toString() + "/" + targetFile;
 185
 186                 // Copy temoporary file to Downloads directory...
 187                 if (!QFile::copy(sourceFile, targetFile)) {
 188                         qDebug() << "File copying failed";
 189                         return false;
 190                 } else {
 191                         // If copying was successful, remove the original temporary file.
 192                         QFile::remove(sourceFile);
 193                 }
 194
 195                 /// @todo Torrent bencoding validity should be checked before starting(?)
 196                 // ...and start the torrent:
 197                 on_torrentFileSelected(targetFile);
 198
 199         } else if (req == qtrapids::PluginHostInterface::READ_BUFFER) {
 200                 // Create torrent information from char* buffer and start.
 201                 StartTorrentFromBufferData(param.toByteArray().constData(), param.toByteArray().size());
 202         }
 203
 204         return true;
 205 }
 206
 207
 208 //=========================== PRIVATE ================================
 209
 210 void MainWindow::LoadPlugins()
 211 {
 212         // Get plugin directories from
 213         QStringList pluginDirsTmp = settings_.value("plugins/path").toStringList();
 214         QStringList nameFilters("*.so");
 215
 216         /// @todo enable "application directory" for plugin search in development/debug mode only. In release version
 217         /// search plugins directory under $HOME/.qtrapids or system library paths
 218         pluginDirsTmp << qApp->applicationDirPath();
 219         pluginDirsTmp.removeDuplicates();
 220
 221         foreach (QString dir, pluginDirsTmp) {
 222                 pluginDirs_.append(QDir(dir));
 223         }
 224
 225         foreach (QDir dir, pluginDirs_) {
 226
 227                 if (dir.cd(PLUGINS_DIR)) {
 228
 229                         foreach (QString fileName, dir.entryList(nameFilters, QDir::Files)) {
 230                                 QPluginLoader pluginLoader(dir.absoluteFilePath(fileName));
 231
 232                                 // If plugin not loaded from another directory, then load
 233                                 if (!pluginFileNames_.contains(fileName) && QLibrary::isLibrary(fileName)) {
 234
 235                                         if (pluginLoader.load()) {
 236                                                 qDebug() << "Plugin loaded: "  << fileName;
 237                                         } else {
 238                                                 qWarning() << "Plugin load failed: " << pluginLoader.errorString();
 239                                         }
 240
 241                                         QObject *baseInstance = pluginLoader.instance();
 242                                         if (!baseInstance) {
 243                                                 qDebug() << "Base instance = NULL.";
 244                                         }
 245
 246                                         qtrapids::PluginInterface *plugin = qobject_cast<qtrapids::PluginInterface*>(baseInstance);
 247
 248                                         if (!plugin) {
 249                                                 qDebug() << "Cast failed.";
 250                                         } else {
 251                                                 qtrapids::PluginInterface::Info info;
 252                                                 info.directory = dir.path();
 253                                                 qDebug() << dir.path();
 254                                                 plugin->initialize(this, info);
 255                                                 pluginFileNames_ += fileName;
 256                                         }
 257                                 } else {
 258                                         qWarning() << "Plugin "
 259                                                 << fileName
 260                                                 << " already loaded from another directory, or not a valid library file";
 261                                 }
 262                         }
 263
 264                 } else {
 265                         qWarning() << PLUGINS_DIR <<  "directory not accessible or does not exist in "  << dir.path();
 266                 }
 267         }
 268 }
 269
 270
 271
 272 // Opens torrent information from buffer data and adds torrent to session
 273 void MainWindow::StartTorrentFromBufferData(char const* data, int size)
 274 {
 275         // For params, see: http://www.rasterbar.com/products/libtorrent/manual.html#add-torrent
 276         /// @todo Should typedef libtorrent::torrent_info to something
 277         AddTorrentParams addParams;
 278         boost::intrusive_ptr<libtorrent::torrent_info> tiTmp =
 279             new libtorrent::torrent_info(data, size);
 280         addParams.ti = tiTmp;
 281         // save_path is the only mandatory parameter, rest are optional.
 282         addParams.save_path = boost::filesystem::path(settings_.value("download/directory").toString().toStdString());
 283         //addParams.storage_mode = libtorrent::storage_mode_allocate;
 284         qtrapids::QTorrentHandle handle = btSession_.addTorrent(addParams);
 285         dlView_->newItem(handle);
 286 //      torrentHandles_.push_back(handlePtr);
 287 #ifdef QTRAPIDS_DEBUG
 288         qDebug() << "Is valid: " << handle.isValid();
 289 #endif
 290 }
 291
 292 // =========================== PRIVATE SLOTS =================================
 293 void MainWindow::on_openAction_clicked()
 294 {
 295         QFileDialog *dialog = new QFileDialog( this, "Open torrent file", QString(), tr("Torrent files (*.torrent)"));
 296         dialog->setFileMode(QFileDialog::ExistingFile);
 297         connect(dialog, SIGNAL(fileSelected(const QString&)), this, SLOT(on_torrentFileSelected(const QString&)));
 298         dialog->show();
 299 }
 300
 301 void MainWindow::on_removeAction_clicked()
 302 {
 303         qtrapids::QTorrentHandle handle = dlView_->removeSelected();
 304         btSession_.removeTorrent(handle);
 305 }
 306
 307
 308 void MainWindow::on_quitAction_clicked()
 309 {
 310         close();
 311 }
 312
 313
 314 void MainWindow::on_preferencesAction_clicked()
 315 {
 316         if (!preferencesDialog_) {
 317                 preferencesDialog_ = new PreferencesDialog(this);
 318         }
 319         preferencesDialog_->show();
 320         preferencesDialog_->raise();
 321         preferencesDialog_->activateWindow();
 322 }
 323
 324
 325 void MainWindow::on_aboutAction_clicked()
 326 {
 327         QMessageBox::about(this, tr("About QtRapids"), ABOUT_TEXT);
 328 }
 329
 330
 331 void MainWindow::on_aboutQtAction_clicked()
 332 {
 333         QMessageBox::aboutQt (this, tr("About Qt"));
 334 }
 335
 336
 337 void MainWindow::on_tabWidget_tabCloseRequested(int index)
 338 {
 339
 340         int searchWidgetIndex = tabWidget_->indexOf(searchWidget_);
 341
 342         // Allow closing other tabs than the first two
 343         // TODO The first two may well be closable, just add "show tabs" action for these in the menu
 344         if (index != 0 && index != 1 && index != searchWidgetIndex) {
 345                 QWidget *remove = tabWidget_->widget(index);
 346                 tabWidget_->removeTab(index);
 347                 delete remove;
 348                 remove = NULL;
 349         }
 350 }
 351
 352
 353 void MainWindow::on_downloadItemSelectionChanged()
 354 {
 355 #ifdef QTRAPIDS_DEBUG
 356         qDebug() << "MainWindow::on_seedItemSelectionChanged():" << dlView_->currentItem();
 357 #endif
 358         if (dlView_->currentItem() != NULL) {
 359                 emit(itemSelected(true));
 360         } else {
 361                 emit(itemSelected(false));
 362         }
 363 }
 364
 365
 366 void MainWindow::on_seedItemSelectionChanged()
 367 {
 368 #ifdef QTRAPIDS_DEBUG
 369         qDebug() << "MainWindow::on_seedItemSelectionChanged():" << seedView_->currentItem();
 370 #endif
 371         if (seedView_->currentItem() != NULL) {
 372                 emit(itemSelected(true));
 373         } else {
 374                 emit(itemSelected(false));
 375         }
 376 }
 377
 378
 379 void MainWindow::handleToolBarAction(QAction* action)
 380 {
 381         if (action->text() == "Open") {
 382                 on_openAction_clicked();
 383         } else if (action->text() == "Remove") {
 384                 on_removeAction_clicked();
 385         }
 386 }
 387
 388
 389 void MainWindow::on_torrentFileSelected(const QString& file)
 390 {
 391 #ifdef QTRAPIDS_DEBUG
 392         qDebug() << " MainWindow::on_torrentFileSelected(): " << file;
 393 #endif
 394         // Torrent filename empty, do nothing.
 395         if (file == "") {
 396                 return;
 397         }
 398
 399         // Otherwise add torrent
 400         // For params, see: http://www.rasterbar.com/products/libtorrent/manual.html#add-torrent
 401         /// @todo Should typedef libtorrent::torrent_info to something
 402         AddTorrentParams addParams;
 403         boost::intrusive_ptr<libtorrent::torrent_info> tiTmp =
 404             new libtorrent::torrent_info(boost::filesystem::path(file.toStdString()));
 405         addParams.ti = tiTmp;
 406         // save_path is the only mandatory parameter, rest are optional.
 407         addParams.save_path = boost::filesystem::path(settings_.value("download/directory").toString().toStdString());
 408         //addParams.storage_mode = libtorrent::storage_mode_allocate;
 409         qtrapids::QTorrentHandle handle = btSession_.addTorrent(addParams);
 410         dlView_->newItem(handle);
 411 //      torrentHandles_.push_back(handlePtr);
 412 #ifdef QTRAPIDS_DEBUG
 413         qDebug() << "Is valid: " << handle.isValid();
 414 #endif
 415 }
 416
 417 void MainWindow::on_alert(std::auto_ptr<Alert> al)
 418 {
 419         if (al.get() != NULL) {
 420 //              qDebug()
 421 //                              << "MainWindow::on_torrentAlert(): "
 422 //                              << QString::fromStdString(al->message());
 423
 424                 TorrentAlert *torrentAlert
 425                 = dynamic_cast<TorrentAlert*> (al.get());
 426
 427                 if (torrentAlert) {
 428                         qtrapids::QTorrentHandle torrentHandle = qtrapids::QTorrentHandle(torrentAlert->handle);
 429                         dlView_->updateItem(qtrapids::QTorrentHandle(torrentAlert->handle));
 430                 }
 431
 432         }
 433 }
 434
 435 /*
 436 bool MainWindow::IsNewTorrent(std::auto_ptr<qtrapids::QTorrentHandle> handlePtr)
 437 {
 438         for (unsigned i = 0; i < torrentHandles_.size(); ++i) {
 439     if (torrentHandles_.at(i).get() == handlePtr.get()) {
 440                         return false;
 441                 } else {
 442                         return true;
 443                 }
 444         }
 445 }
 446 */