File indexing completed on 2022-08-11 17:17:09

 /**
  * Copyright (C) 2002-2004 Scott Wheeler <wheeler@kde.org>
  * Copyright (C) 2008, 2009, 2017 Michael Pyne <mpyne@kde.org>
  *
  * 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; either version 2 of the License, or (at your option) any later
  * version.
  *
  * 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, see <http://www.gnu.org/licenses/>.
  */
 
 #include "juk.h"
 
 #include <KSharedConfig>
 #include <kaboutdata.h>
 #include <kactioncollection.h>
 #include <kactionmenu.h>
 #include <kconfiggroup.h>
 #include <kglobalaccel.h>
 #include <kmessagebox.h>
 #include <knotification.h>
 #include <kstandardaction.h>
 #include <ktoggleaction.h>
 #include <ktoolbarpopupaction.h>
 
 #include <QAction>
 #include <QCoreApplication>
 #include <QDBusInterface>
 #include <QDBusMessage>
 #include <QDBusReply>
 #include <QDir>
 #include <QDirIterator>
 #include <QIcon>
 #include <QKeyEvent>
 #include <QMenuBar>
 #include <QMetaType>
 #include <QScreen>
 #include <QStatusBar>
 #include <QTime>
 #include <QTimer>
 
 #include "actioncollection.h"
 #include "cache.h"
 #include "collectionlist.h"
 #include "covermanager.h"
 #include "filerenamerconfigdlg.h"
 #include "iconsupport.h"
 #include "keydialog.h"
 #include "playermanager.h"
 #include "playlistsplitter.h"
 #include "scrobbleconfigdlg.h"
 #include "scrobbler.h"
 #include "slideraction.h"
 #include "statuslabel.h"
 #include "systemtray.h"
 #include "tagguesserconfigdlg.h"
 #include "tagtransactionmanager.h"
 
 #include "juk_debug.h"
 
 using namespace ActionCollection; // ""_act and others
 using namespace IconSupport;      // ""_icon
 
 JuK* JuK::m_instance;
 
 template<class T>
 void deleteAndClear(T *&ptr)
 {
     delete ptr;
     ptr = 0;
 }
 
 ////////////////////////////////////////////////////////////////////////////////
 // public members
 ////////////////////////////////////////////////////////////////////////////////
 
 JuK::JuK(const QStringList &filesToOpen, QWidget *parent)
   : KXmlGuiWindow(parent, Qt::WindowFlags(Qt::WA_DeleteOnClose))
   , m_player(new PlayerManager)
   , m_filesToOpen(filesToOpen)
 {
     // Expect segfaults if you change this order.
 
     // Allow to be passed across threads
     qRegisterMetaType<FileHandle>();
     qRegisterMetaType<FileHandleList>();
 
     m_instance = this;
 
     Cache::ensureAppDataStorageExists();
 
     setupActions();
     setupLayout(); // Creates PlaylistSplitter and therefore CollectionList
 
     bool firstRun = !KSharedConfig::openConfig()->hasGroup("MainWindow");
 
     if(firstRun) {
         KConfigGroup mainWindowConfig(KSharedConfig::openConfig(), "MainWindow");
         KConfigGroup playToolBarConfig(&mainWindowConfig, "Toolbar playToolBar");
         playToolBarConfig.writeEntry("ToolButtonStyle", "IconOnly");
     }
 
     QSize defaultSize(800, 480);
 
     if(QApplication::isRightToLeft())
         setupGUI(defaultSize, ToolBar | Save | Create, "jukui-rtl.rc");
     else
         setupGUI(defaultSize, ToolBar | Save | Create);
 
     // Center the GUI if this is our first run ever.
 
     if(firstRun) {
         QRect r = rect();
         const QRect screenCenter = QApplication::primaryScreen()->availableGeometry();
         r.moveCenter(screenCenter.center());
         move(r.topLeft());
     }
 
     connect(m_splitter, SIGNAL(guiReady()), SLOT(slotSetupSystemTray()));
     readConfig();
     setupGlobalAccels();
     activateScrobblerIfEnabled();
 
     QDBusInterface *pmInterface = new QDBusInterface(QStringLiteral("org.kde.Solid.PowerManagement"),
                                        QStringLiteral("/org/freedesktop/PowerManagement/Inhibit"),
                                        QStringLiteral("org.freedesktop.PowerManagement.Inhibit"),
                                        QDBusConnection::sessionBus());
 
     connect(m_player, &PlayerManager::signalPlay, pmInterface, [=] () {
         QDBusReply<uint> reply;
         if(pmInterface->isValid() && (m_pmToken == 0)) {
             reply = pmInterface->call(QStringLiteral("Inhibit"),
                                KAboutData::applicationData().componentName(),
                                QStringLiteral("playing audio"));
             if(reply.isValid()) {
                 m_pmToken = reply.value();
             }
         }
     });
 
     auto uninhibitPowerManagement = [=] () {
         QDBusMessage reply;
         if(pmInterface->isValid() && (m_pmToken != 0)) {
             reply = pmInterface->call(QStringLiteral("UnInhibit"), m_pmToken);
             if(reply.errorName().isEmpty()) {
                 m_pmToken = 0;
             }
         }
     };
 
     connect(m_player, &PlayerManager::signalPause, uninhibitPowerManagement);
     connect(m_player, &PlayerManager::signalStop, uninhibitPowerManagement);
 
     // KMainWindow will close the window on this signal, but we need the visible state
     // of it in saveConfig()
     disconnect(qApp, &QGuiApplication::commitDataRequest, nullptr, nullptr);
 
     connect(qApp, &QGuiApplication::commitDataRequest, this, [this]() { saveConfig(); },
             Qt::DirectConnection);
 
     // slotCheckCache loads the cached entries first to populate the collection list
 
     QTimer::singleShot(0, this, SLOT(slotClearOldCovers()));
     QTimer::singleShot(0, CollectionList::instance(), SLOT(startLoadingCachedItems()));
     QTimer::singleShot(0, this, SLOT(slotProcessArgs()));
 }
 
 JuK::~JuK()
 {
     if(!m_shuttingDown)
         slotQuit();
 
     // Some items need to be deleted before others, though I haven't looked
     // at this in some time so refinement is probably possible.
     delete m_systemTray;
     delete m_splitter;
     delete m_player;
     delete m_statusLabel;
 
     // Sometimes KMainWindow doesn't actually call QCoreApplication::quit
     // after queryClose, even if not in a session shutdown, so make sure to
     // do so ourselves when closing the main window.
     QTimer::singleShot(0, qApp, &QCoreApplication::quit);
 }
 
 JuK* JuK::JuKInstance()
 {
     return m_instance;
 }
 
 PlayerManager *JuK::playerManager() const
 {
     return m_player;
 }
 
 void JuK::coverDownloaded(const QPixmap &cover)
 {
     QString event(cover.isNull() ? "coverFailed" : "coverDownloaded");
     KNotification *notification = new KNotification(event);
     notification->setWidget(this);
     notification->setPixmap(cover);
     notification->setFlags(KNotification::CloseOnTimeout);
 
     if(cover.isNull())
         notification->setText(i18n("Your album art failed to download."));
     else
         notification->setText(i18n("Your album art has finished downloading."));
 
     notification->sendEvent();
 }
 
 ////////////////////////////////////////////////////////////////////////////////
 // private members
 ////////////////////////////////////////////////////////////////////////////////
 
 void JuK::setupLayout()
 {
     m_splitter = new PlaylistSplitter(m_player, this);
     setCentralWidget(m_splitter);
 
     m_statusLabel = new StatusLabel(*m_splitter->playlist(), statusBar());
     statusBar()->addWidget(m_statusLabel, 1);
     connect(m_player, &PlayerManager::tick, m_statusLabel,
             &StatusLabel::setItemCurrentTime);
     connect(m_player, &PlayerManager::totalTimeChanged,
             m_statusLabel, &StatusLabel::setItemTotalTime);
     connect(m_splitter, &PlaylistSplitter::currentPlaylistChanged,
             m_statusLabel, &StatusLabel::slotCurrentPlaylistHasChanged);
 
     m_splitter->setFocus();
 }
 
 void JuK::setupActions()
 {
     KActionCollection *collection = ActionCollection::actions();
 
     // Setup KDE standard actions that JuK uses.
 
     KStandardAction::quit(this, SLOT(slotQuit()), collection);
     KStandardAction::undo(this, SLOT(slotUndo()), collection);
     KStandardAction::cut(collection);
     KStandardAction::copy(collection);
     KStandardAction::paste(collection);
     QAction *clear = KStandardAction::clear(collection);
     KStandardAction::selectAll(collection);
     KStandardAction::keyBindings(this, SLOT(slotEditKeys()), collection);
     KStandardAction::showMenubar(menuBar(), SLOT(setVisible(bool)), collection);
 
     // Setup the menu which handles the random play options.
     KActionMenu *actionMenu = collection->add<KActionMenu>("actionMenu");
     actionMenu->setText(i18n("&Random Play"));
     actionMenu->setIcon("media-playlist-shuffle"_icon);
     actionMenu->setPopupMode(QToolButton::InstantPopup);
 
     QActionGroup* randomPlayGroup = new QActionGroup(this);
 
     QAction *act = collection->add<KToggleAction>("disableRandomPlay");
     act->setText(i18n("&Disable Random Play"));
     act->setIcon("go-down"_icon);
     act->setActionGroup(randomPlayGroup);
     actionMenu->addAction(act);
 
     m_randomPlayAction = collection->add<KToggleAction>("randomPlay");
     m_randomPlayAction->setText(i18n("Use &Random Play"));
     m_randomPlayAction->setIcon("media-playlist-shuffle"_icon);
     m_randomPlayAction->setActionGroup(randomPlayGroup);
     actionMenu->addAction(m_randomPlayAction);
 
     act = collection->add<KToggleAction>("albumRandomPlay");
     act->setText(i18n("Use &Album Random Play"));
     act->setIcon("media-playlist-shuffle"_icon);
     act->setActionGroup(randomPlayGroup);
     connect(act, &QAction::toggled,
             this, &JuK::slotCheckAlbumNextAction);
     actionMenu->addAction(act);
 
     act = collection->addAction("removeFromPlaylist", clear, SLOT(clear()));
     act->setText(i18n("Remove From Playlist"));
     act->setIcon("list-remove"_icon);
 
     act = collection->addAction("play", m_player, SLOT(play()));
     act->setText(i18n("&Play"));
     act->setIcon("media-playback-start"_icon);
 
     act = collection->addAction("pause", m_player, SLOT(pause()));
     act->setEnabled(false);
     act->setText(i18n("P&ause"));
     act->setIcon("media-playback-pause"_icon);
 
     act = collection->addAction("stop", m_player, SLOT(stop()));
     act->setEnabled(false);
     act->setText(i18n("&Stop"));
     act->setIcon("media-playback-stop"_icon);
 
     act = new KToolBarPopupAction("media-skip-backward"_icon, i18nc("previous track", "Previous" ), collection);
     act->setEnabled(false);
     collection->addAction("back", act);
     connect(act, SIGNAL(triggered(bool)), m_player, SLOT(back()));
 
     act = collection->addAction("forward", m_player, SLOT(forward()));
     act->setEnabled(false);
     act->setText(i18nc("next track", "&Next"));
     act->setIcon("media-skip-forward"_icon);
 
     act = collection->addAction("loopPlaylist");
     act->setText(i18n("&Loop Playlist"));
     act->setCheckable(true);
 
     act = collection->add<KToggleAction>("resizeColumnsManually");
     act->setText(i18n("&Resize Playlist Columns Manually"));
 
     // the following are not visible by default
 
     act = collection->addAction("mute", m_player, SLOT(mute()));
     act->setText(i18nc("silence playback", "Mute"));
     act->setIcon("audio-volume-muted"_icon);
 
     act = collection->addAction("volumeUp", m_player, SLOT(volumeUp()));
     act->setText(i18n("Volume Up"));
     act->setIcon("audio-volume-high"_icon);
 
     act = collection->addAction("volumeDown", m_player, SLOT(volumeDown()));
     act->setText(i18n("Volume Down"));
     act->setIcon("audio-volume-low"_icon);
 
     act = collection->addAction("playPause", m_player, SLOT(playPause()));
     act->setText(i18n("Play / Pause"));
     act->setIcon("media-playback-start"_icon);
 
     act = collection->addAction("seekForward", m_player, SLOT(seekForward()));
     act->setText(i18n("Seek Forward"));
     act->setIcon("media-seek-forward"_icon);
 
     act = collection->addAction("seekBack", m_player, SLOT(seekBack()));
     act->setText(i18n("Seek Back"));
     act->setIcon("media-seek-backward"_icon);
 
     act = collection->addAction("showHide", this, SLOT(slotShowHide()));
     act->setText(i18n("Show / Hide"));
 
     //////////////////////////////////////////////////
     // settings menu
     //////////////////////////////////////////////////
 
     m_toggleSystemTrayAction = collection->add<KToggleAction>("toggleSystemTray");
     m_toggleSystemTrayAction->setText(i18n("&Dock in System Tray"));
     connect(m_toggleSystemTrayAction, SIGNAL(triggered(bool)), SLOT(slotToggleSystemTray(bool)));
 
     m_toggleDockOnCloseAction = collection->add<KToggleAction>("dockOnClose");
     m_toggleDockOnCloseAction->setText(i18n("&Stay in System Tray on Close"));
 
     m_togglePopupsAction = collection->add<KToggleAction>("togglePopups");
     m_togglePopupsAction->setText(i18n("Popup &Track Announcement"));
 
     act = collection->add<KToggleAction>("saveUpcomingTracks");
     act->setText(i18n("Save &Play Queue on Exit"));
 
     act = collection->addAction("tagGuesserConfig", this, SLOT(slotConfigureTagGuesser()));
     act->setText(i18n("&Tag Guesser..."));
 
     act = collection->addAction("fileRenamerConfig", this, SLOT(slotConfigureFileRenamer()));
     act->setText(i18n("&File Renamer..."));
 
     act = collection->addAction("scrobblerConfig", this, SLOT(slotConfigureScrobbling()));
     act->setText(i18n("&Configure scrobbling..."));
 
     //////////////////////////////////////////////////
     // just in the toolbar
     //////////////////////////////////////////////////
 
     collection->addAction("trackPositionAction",
                           new TrackPositionAction(i18n("Track Position"), this));
     collection->addAction("volumeAction",
                           new VolumeAction(i18n("Volume"), this));
 
     ActionCollection::actions()->addAssociatedWidget(this);
     foreach (QAction* action, ActionCollection::actions()->actions())
         action->setShortcutContext(Qt::WidgetWithChildrenShortcut);
 }
 
 void JuK::slotSetupSystemTray()
 {
     if(m_toggleSystemTrayAction && m_toggleSystemTrayAction->isChecked()) {
         m_systemTray = new SystemTray(m_player, this);
         m_systemTray->setObjectName(QStringLiteral("systemTray"));
 
         m_toggleDockOnCloseAction->setEnabled(true);
         m_togglePopupsAction->setEnabled(true);
 
         // since we need the information if the main window is visible
         // when quit was selected, we need to reroute the signal to our slot
         QAction *quitAction = m_systemTray->action(QStringLiteral("quit"));
         if (quitAction) {
             quitAction->disconnect();
             connect(quitAction, &QAction::triggered, this, &JuK::slotQuit);
         }
 
         // If this flag gets set then JuK will quit if you click the cover on
         // the track announcement popup when JuK is only in the system tray
         // (the systray has no widget).
 
         qGuiApp->setQuitOnLastWindowClosed(false);
     }
     else {
         m_systemTray = nullptr;
         m_toggleDockOnCloseAction->setEnabled(false);
         m_togglePopupsAction->setEnabled(false);
     }
 }
 
 void JuK::setupGlobalAccels()
 {
     KeyDialog::setupActionShortcut("play");
     KeyDialog::setupActionShortcut("playPause");
     KeyDialog::setupActionShortcut("stop");
     KeyDialog::setupActionShortcut("back");
     KeyDialog::setupActionShortcut("forward");
     KeyDialog::setupActionShortcut("seekBack");
     KeyDialog::setupActionShortcut("seekForward");
     KeyDialog::setupActionShortcut("volumeUp");
     KeyDialog::setupActionShortcut("volumeDown");
     KeyDialog::setupActionShortcut("mute");
     KeyDialog::setupActionShortcut("showHide");
     KeyDialog::setupActionShortcut("forwardAlbum");
 }
 
 void JuK::slotProcessArgs()
 {
     CollectionList::instance()->addFiles(m_filesToOpen);
 }
 
 void JuK::slotClearOldCovers()
 {
     // Find all saved covers from the previous run of JuK and clear them out, in case
     // we find our tracks in a different order this run, which would cause old saved
     // covers to be wrong.
     // See mpris2/mediaplayer2player.cpp
     QString tmpDir = QStandardPaths::writableLocation(QStandardPaths::TempLocation);
     QStringList nameFilters;
 
     nameFilters << QStringLiteral("juk-cover-*.png");
     QDirIterator jukCoverIter(tmpDir, nameFilters);
     while (jukCoverIter.hasNext()) {
         QFile::remove(jukCoverIter.next());
     }
 }
 
 void JuK::keyPressEvent(QKeyEvent *e)
 {
     if (e->key() >= Qt::Key_Back && e->key() <= Qt::Key_MediaLast)
         e->accept();
     KXmlGuiWindow::keyPressEvent(e);
 }
 
 void JuK::readConfig()
 {
     // player settings
 
     KConfigGroup playerConfig(KSharedConfig::openConfig(), "Player");
 
     if(m_player)
     {
         const int maxVolume = 100;
         const int volume = playerConfig.readEntry("Volume", maxVolume);
         m_player->setVolume(volume * 0.01);
 
         //bool enableCrossfade = playerConfig.readEntry("CrossfadeTracks", true);
         //m_player->setCrossfadeEnabled(enableCrossfade);
         //ActionCollection::action<QAction>("crossfadeTracks")->setChecked(enableCrossfade);
     }
 
     // Default to no random play
 
     ActionCollection::action<KToggleAction>("disableRandomPlay")->setChecked(true);
 
     QString randomPlayMode = playerConfig.readEntry("RandomPlay", "Disabled");
     if(randomPlayMode == "true" || randomPlayMode == "Normal")
         m_randomPlayAction->setChecked(true);
     else if(randomPlayMode == "AlbumRandomPlay")
         ActionCollection::action<QAction>("albumRandomPlay")->setChecked(true);
 
     bool loopPlaylist = playerConfig.readEntry("LoopPlaylist", false);
     ActionCollection::action<QAction>("loopPlaylist")->setChecked(loopPlaylist);
 
     // general settings
 
     KConfigGroup settingsConfig(KSharedConfig::openConfig(), "Settings");
 
     bool dockInSystemTray = settingsConfig.readEntry("DockInSystemTray", true);
     m_toggleSystemTrayAction->setChecked(dockInSystemTray);
 
     bool dockOnClose = settingsConfig.readEntry("DockOnClose", true);
     m_toggleDockOnCloseAction->setChecked(dockOnClose);
 
     bool showPopups = settingsConfig.readEntry("TrackPopup", false);
     m_togglePopupsAction->setChecked(showPopups);
 }
 
 void JuK::saveConfig()
 {
     // player settings
 
     KConfigGroup playerConfig(KSharedConfig::openConfig(), "Player");
 
     if (m_player)
     {
         playerConfig.writeEntry("Volume", static_cast<int>(100.0 * m_player->volume()));
     }
 
     playerConfig.writeEntry("RandomPlay", m_randomPlayAction->isChecked());
 
     QAction *a = ActionCollection::action<QAction>("loopPlaylist");
     playerConfig.writeEntry("LoopPlaylist", a->isChecked());
 
     playerConfig.writeEntry("CrossfadeTracks", false); // TODO bring back
 
     a = ActionCollection::action<QAction>("albumRandomPlay");
     if(a->isChecked())
         playerConfig.writeEntry("RandomPlay", "AlbumRandomPlay");
     else if(m_randomPlayAction->isChecked())
         playerConfig.writeEntry("RandomPlay", "Normal");
     else
         playerConfig.writeEntry("RandomPlay", "Disabled");
 
     // general settings
 
     KConfigGroup settingsConfig(KSharedConfig::openConfig(), "Settings");
     settingsConfig.writeEntry("StartDocked", !isVisible() && m_toggleDockOnCloseAction->isChecked());
     settingsConfig.writeEntry("DockInSystemTray", m_toggleSystemTrayAction->isChecked());
     settingsConfig.writeEntry("DockOnClose", m_toggleDockOnCloseAction->isChecked());
     settingsConfig.writeEntry("TrackPopup", m_togglePopupsAction->isChecked());
 
     KSharedConfig::openConfig()->sync();
 }
 
 bool JuK::queryClose()
 {
     if(!m_shuttingDown &&
        !qApp->isSavingSession() &&
        m_systemTray &&
        m_toggleDockOnCloseAction->isChecked())
     {
         KMessageBox::information(this,
             i18n("<qt>Closing the main window will keep JuK running in the system tray. "
                  "Use Quit from the File menu to quit the application.</qt>"),
             i18n("Docking in System Tray"), "hideOnCloseInfo");
         hide();
         return false;
     }
 
     return true;
 }
 
 ////////////////////////////////////////////////////////////////////////////////
 // private slot definitions
 ////////////////////////////////////////////////////////////////////////////////
 
 void JuK::slotShowHide()
 {
     setHidden(!isHidden());
 }
 
 void JuK::slotQuit()
 {
     m_shuttingDown = true;
 
     // Some phonon backends will crash on shutdown unless we've stopped
     // playback.
     if(m_player->playing()) {
         m_player->stop();
     }
 
     saveConfig();
 
     // this will start chain of events causing PlaylistCollection (in
     // guise of PlaylistBox) and CollectionList (as first Playlist child)
     // to save themselves and then quit the application when this widget
     // closes.
     delete m_statusLabel;
     m_statusLabel = nullptr;
 
     delete m_splitter;
     m_splitter = nullptr;
 
     close();
 }
 
 ////////////////////////////////////////////////////////////////////////////////
 // settings menu
 ////////////////////////////////////////////////////////////////////////////////
 
 void JuK::slotToggleSystemTray(bool enabled)
 {
     if(enabled && !m_systemTray)
         slotSetupSystemTray();
     else if(!enabled && m_systemTray) {
         delete m_systemTray;
         m_systemTray = nullptr;
         m_toggleDockOnCloseAction->setEnabled(false);
         m_togglePopupsAction->setEnabled(false);
 
         qGuiApp->setQuitOnLastWindowClosed(true);
     }
 }
 
 void JuK::slotEditKeys()
 {
     KeyDialog(ActionCollection::actions(), this).configure();
 }
 
 void JuK::slotConfigureTagGuesser()
 {
     TagGuesserConfigDlg(this).exec();
 }
 
 void JuK::slotConfigureFileRenamer()
 {
     FileRenamerConfigDlg(this).exec();
 }
 
 void JuK::slotConfigureScrobbling()
 {
     ScrobbleConfigDlg(this).exec();
     activateScrobblerIfEnabled();
 }
 
 void JuK::activateScrobblerIfEnabled()
 {
     bool isScrobbling = Scrobbler::isScrobblingEnabled();
 
     if (!m_scrobbler && isScrobbling) {
         m_scrobbler = new Scrobbler(this);
         connect (m_player,    SIGNAL(signalItemChanged(FileHandle)),
                  m_scrobbler, SLOT(nowPlaying(FileHandle)));
     }
     else if (m_scrobbler && !isScrobbling) {
         delete m_scrobbler;
         m_scrobbler = 0;
     }
 }
 
 void JuK::slotUndo()
 {
     TagTransactionManager::instance()->undo();
 }
 
 void JuK::slotCheckAlbumNextAction(bool albumRandomEnabled)
 {
     action("forwardAlbum")->setEnabled(m_player->playing() && albumRandomEnabled);
 }
 
 // vim: set et sw=4 tw=0 sta: