884ced03a3b00801cb86406af5ff60a9f6b10ff0
[qtrapids] / 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 // Consturctor
47 MainWindow::MainWindow():
48                 QMainWindow(), // Superclass
49                 tabWidget_(NULL),
50                 dlView_(NULL),
51                 seedView_(NULL),
52                 preferencesDialog_(NULL),
53                 settings_(),
54 //      torrentHandles_(),
55                 btSession_()
56 {
57         // MENUBAR
58         QMenuBar *menuBar = new QMenuBar();
59         QMenu *tempMenu = NULL;
60
61         tempMenu = menuBar->addMenu(tr("&File"));
62         QAction *openAction = tempMenu->addAction(tr("&Open"));
63         QAction *removeAction = tempMenu->addAction(tr("&Remove"));
64         removeAction->setEnabled(false);
65         QAction *quitAction = tempMenu->addAction(tr("&Quit"));
66
67         tempMenu = menuBar->addMenu(tr("&Settings"));
68         QAction *preferencesAction = tempMenu->addAction(tr("&Preferences"));
69
70         tempMenu = menuBar->addMenu(tr("&Help"));
71         QAction *aboutAction = tempMenu->addAction(tr("&About"));
72         QAction *aboutQtAction = tempMenu->addAction(tr("About &Qt"));
73
74         setMenuBar(menuBar);
75         connect(openAction, SIGNAL(triggered()), this, SLOT(on_openAction_clicked()));
76         connect(removeAction, SIGNAL(triggered()), this, SLOT(on_removeAction_clicked()));
77         connect(this, SIGNAL(itemSelected(bool)), removeAction, SLOT(setEnabled(bool)));
78         connect(quitAction, SIGNAL(triggered()), this, SLOT(on_quitAction_clicked()));
79         connect(preferencesAction, SIGNAL(triggered()), this, SLOT(on_preferencesAction_clicked()));
80         connect(aboutAction, SIGNAL(triggered()), this, SLOT(on_aboutAction_clicked()));
81         connect(aboutQtAction, SIGNAL(triggered()), this, SLOT(on_aboutQtAction_clicked()));
82
83         // TABWIDGET (central widget)
84         tabWidget_ = new QTabWidget();
85         tabWidget_->setTabsClosable(true);
86
87         /// @todo Exception handling
88         dlView_ = new DownloadView(this);
89         seedView_ = new SeedView(this);
90         tabWidget_->addTab(dlView_, tr("Downloads"));
91         tabWidget_->addTab(seedView_, tr("Seeds"));
92         connect(dlView_, SIGNAL(itemSelectionChanged()), this,
93                 SLOT(on_downloadItemSelectionChanged()));
94         connect(seedView_, SIGNAL(itemSelectionChanged()), this,
95                 SLOT(on_seedItemSelectionChanged()));
96
97
98         // Tab widget as central widget.
99         setCentralWidget(tabWidget_);
100
101         // TOOLBAR
102         QToolBar *toolBar = new QToolBar();
103         toolBar->addAction(tr("Open"));
104         removeAction = toolBar->addAction(tr("Remove"));
105         removeAction->setEnabled(false);
106         addToolBar(Qt::TopToolBarArea, toolBar);
107
108         connect(this, SIGNAL(itemSelected(bool)), removeAction,
109                 SLOT(setEnabled(bool)));
110         connect(toolBar, SIGNAL(actionTriggered(QAction*)), this,
111                 SLOT(handleToolBarAction(QAction*)));
112
113         connect(&btSession_, SIGNAL(alert(std::auto_ptr<Alert>)),
114                 this, SLOT(on_alert(std::auto_ptr<Alert>)));
115
116         LoadPlugins();
117 }
118
119
120 MainWindow::~MainWindow()
121 {
122 }
123
124 // ===================== Implements PluginInterface =========================
125 bool MainWindow::setGui(QWidget* widget, PluginWidgetType type)
126 {
127 #ifdef QTRAPIDS_DEBUG
128         qDebug() << "MainWindow::setGui():" << dlView_->currentItem();
129 #endif
130         tabWidget_->addTab(widget, tr("Search"));
131         return true;
132 }
133
134 /// @todo Add PluginInterface parameter check which plugin gives the widget to handle appropriately
135 void MainWindow::addPluginWidget(QWidget* widget, PluginWidgetType type)
136 {
137 #ifdef QTRAPIDS_DEBUG
138         qDebug() << "MainWindow::addPluginWidget():" << dlView_->currentItem();
139 #endif
140
141         if (type == qtrapids::PluginHostInterface::TAB_PAGE) {
142                 int index = tabWidget_->addTab(widget, tr("Test"));
143                 tabWidget_->setCurrentIndex(index);
144                 //layout_->addWidget(widget);
145         }
146 }
147 void MainWindow::addToolbar(QWidget* widget, PluginWidgetType type)
148 {
149 }
150
151 void MainWindow::addToolItem(QWidget* widget, PluginWidgetType type)
152 {
153 }
154
155 void MainWindow::addMenu(QWidget* widget, PluginWidgetType type)
156 {
157 }
158
159 void MainWindow::addMenuItem(QWidget* widget, PluginWidgetType type)
160 {
161 }
162
163 bool MainWindow::eventRequest(QVariant param, PluginRequest req)
164 {
165         if (req == qtrapids::PluginHostInterface::OPEN_FILE) {
166                         QString sourceFile = param.toString();
167                         
168                 // Get the source files name from the full path:
169                 QFileInfo fInfo(sourceFile);
170                 QString targetFile = fInfo.fileName();
171                 targetFile = settings_.value("download/directory").toString() + targetFile;
172                 
173                 // Copy temoporary file to Downloads directory...
174                 if (!QFile::copy(sourceFile, targetFile)) {
175                         qDebug() << "File copying failed";
176                         return false;
177                 } else {
178                         // If copying was successful, remove the original temporary file.
179                         QFile::remove(sourceFile);
180                 }
181                         
182                 // ...and start the torrent:
183                 on_torrentFileSelected(targetFile);
184         }
185         
186         return true;
187 }
188
189
190 //=========================== PRIVATE ================================
191
192 void MainWindow::LoadPlugins()
193 {
194         /// @todo get plugin directory from settings or go through multiple directories
195         /// Now we only check the application directory
196         pluginsDir_ = QDir(qApp->applicationDirPath());
197         pluginsDir_.cd("plugins");
198         QStringList nameFilters;
199         nameFilters << "*.so";
200
201         foreach (QString fileName, pluginsDir_.entryList(nameFilters, QDir::Files)) {
202                 QPluginLoader pluginLoader(pluginsDir_.absoluteFilePath(fileName));
203
204                 if (!QLibrary::isLibrary(fileName)) {
205                         qDebug() << fileName << " not a library";
206                 }
207
208                 if (pluginLoader.load()) {
209                         qDebug() << "Plugin loaded: "  << fileName;
210                 } else {
211                         qDebug() << "Plugin load failed: " << pluginLoader.errorString();
212                 }
213
214                 QObject *baseInstance = pluginLoader.instance();
215                 if (!baseInstance) {
216                         qDebug() << "Base instance = NULL.";
217                 }
218
219                 qtrapids::PluginInterface *plugin = qobject_cast<qtrapids::PluginInterface*>(baseInstance);
220
221                 if (!plugin) {
222                         qDebug() << "Cast failed.";
223                 } else {
224                         plugin->initialize(this);
225                         pluginFileNames_ += fileName;
226                 }
227         }
228 }
229
230 // =========================== SLOTS =================================
231 void MainWindow::on_openAction_clicked()
232 {
233         QFileDialog *dialog = new QFileDialog( this, "Open torrent file", QString(), tr("Torrent files (*.torrent)"));
234         dialog->setFileMode(QFileDialog::ExistingFile);
235         connect(dialog, SIGNAL(fileSelected(const QString&)), this, SLOT(on_torrentFileSelected(const QString&)));
236         dialog->show();
237 }
238
239 void MainWindow::on_removeAction_clicked()
240 {
241         qtrapids::QTorrentHandle handle = dlView_->removeSelected();
242         btSession_.removeTorrent(handle);
243 }
244
245 void MainWindow::on_quitAction_clicked()
246 {
247         close();
248 }
249
250 void MainWindow::on_preferencesAction_clicked()
251 {
252         if (!preferencesDialog_) {
253                 preferencesDialog_ = new PreferencesDialog(this);
254         }
255         preferencesDialog_->show();
256         preferencesDialog_->raise();
257         preferencesDialog_->activateWindow();
258 }
259
260 void MainWindow::on_aboutAction_clicked()
261 {
262         QMessageBox::about(this, tr("About QtRapids"), ABOUT_TEXT);
263 }
264
265
266 void MainWindow::on_aboutQtAction_clicked()
267 {
268         QMessageBox::aboutQt (this, tr("About Qt"));
269 }
270
271
272 void MainWindow::on_downloadItemSelectionChanged()
273 {
274 #ifdef QTRAPIDS_DEBUG
275         qDebug() << "MainWindow::on_seedItemSelectionChanged():" << dlView_->currentItem();
276 #endif
277         if (dlView_->currentItem() != NULL) {
278                 emit(itemSelected(true));
279         } else {
280                 emit(itemSelected(false));
281         }
282 }
283
284 void MainWindow::on_seedItemSelectionChanged()
285 {
286 #ifdef QTRAPIDS_DEBUG
287         qDebug() << "MainWindow::on_seedItemSelectionChanged():" << seedView_->currentItem();
288 #endif
289         if (seedView_->currentItem() != NULL) {
290                 emit(itemSelected(true));
291         } else {
292                 emit(itemSelected(false));
293         }
294 }
295
296 void MainWindow::handleToolBarAction(QAction* action)
297 {
298         if (action->text() == "Open") {
299                 on_openAction_clicked();
300         } else if (action->text() == "Remove") {
301                 on_removeAction_clicked();
302         }
303 }
304
305 void MainWindow::on_torrentFileSelected(const QString& file)
306 {
307 #ifdef QTRAPIDS_DEBUG
308         qDebug() << " MainWindow::on_torrentFileSelected(): " << file;
309 #endif
310         // Torrent filename empty, do nothing.
311         if (file == "") {
312                 return;
313         }
314
315         // Otherwise add torrent
316         // For params, see: http://www.rasterbar.com/products/libtorrent/manual.html#add-torrent
317         AddTorrentParams addParams;
318         boost::intrusive_ptr<libtorrent::torrent_info> tiTmp =
319             new libtorrent::torrent_info(boost::filesystem::path(file.toStdString()));
320         addParams.ti = tiTmp;
321         // save_path is the only mandatory parameter, rest are optional.
322         addParams.save_path = boost::filesystem::path(settings_.value("download/directory").toString().toStdString());
323         //addParams.storage_mode = libtorrent::storage_mode_allocate;
324         qtrapids::QTorrentHandle handle = btSession_.addTorrent(addParams);
325         dlView_->newItem(handle);
326 //      torrentHandles_.push_back(handlePtr);
327 #ifdef QTRAPIDS_DEBUG
328         qDebug() << "Is valid: " << handle.isValid();
329 #endif
330 }
331
332
333 void MainWindow::on_alert(std::auto_ptr<Alert> al)
334 {
335         if (al.get() != NULL) {
336 //              qDebug()
337 //                              << "MainWindow::on_torrentAlert(): "
338 //                              << QString::fromStdString(al->message());
339
340                 TorrentAlert *torrentAlert
341                 = dynamic_cast<TorrentAlert*> (al.get());
342
343                 if (torrentAlert) {
344                         qtrapids::QTorrentHandle torrentHandle = qtrapids::QTorrentHandle(torrentAlert->handle);
345                         dlView_->updateItem(qtrapids::QTorrentHandle(torrentAlert->handle));
346                 }
347
348         }
349 }
350
351 /*
352 bool MainWindow::IsNewTorrent(std::auto_ptr<qtrapids::QTorrentHandle> handlePtr)
353 {
354         for (unsigned i = 0; i < torrentHandles_.size(); ++i) {
355     if (torrentHandles_.at(i).get() == handlePtr.get()) {
356                         return false;
357                 } else {
358                         return true;
359                 }
360         }
361 }
362 */