File indexing completed on 2021-12-21 13:27:58

 /**
  * Copyright (C) 2004 Scott Wheeler <wheeler@kde.org>
  * Copyright (C) 2009, 2021 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 "playlistcollection.h"
 
 #include <kio_version.h>
 #include <kiconloader.h>
 #include <kmessagebox.h>
 #include <kactioncollection.h>
 #include <ktoggleaction.h>
 #include <kactionmenu.h>
 #include <kconfiggroup.h>
 #include <KSharedConfig>
 #include <kfileitem.h>
 
 #include <config-juk.h>
 
 #include <QAction>
 #include <QIcon>
 #include <QMutableListIterator>
 #include <QObject>
 #include <QPixmap>
 #include <QDir>
 #include <QFileDialog>
 #include <QInputDialog>
 #include <QStackedWidget>
 
 #include <sys/types.h>
 #include <dirent.h>
 
 #include "actioncollection.h"
 #include "advancedsearchdialog.h"
 #include "collectionlist.h"
 #include "coverinfo.h"
 #include "directorylist.h"
 #include "folderplaylist.h"
 #include "historyplaylist.h"
 #include "iconsupport.h"
 #include "juk.h"
 #include "mediafiles.h"
 #include "playermanager.h"
 #include "searchplaylist.h"
 #include "upcomingplaylist.h"
 
 //Laurent: readd it
 //#include "collectionadaptor.h"
 
 ////////////////////////////////////////////////////////////////////////////////
 // static methods
 ////////////////////////////////////////////////////////////////////////////////
 
 PlaylistCollection *PlaylistCollection::m_instance = nullptr;
 
 // Returns all folders in input list with their canonical path, if available, or
 // unchanged if not.
 static QStringList canonicalizeFolderPaths(const QStringList &folders)
 {
     QStringList result;
 
     foreach(const QString &folder, folders) {
         QString canonicalFolder = QDir(folder).canonicalPath();
         result << (!canonicalFolder.isEmpty() ? canonicalFolder : folder);
     }
 
     return result;
 }
 
 ////////////////////////////////////////////////////////////////////////////////
 // public methods
 ////////////////////////////////////////////////////////////////////////////////
 
 PlaylistCollection::PlaylistCollection(PlayerManager *player, QStackedWidget *playlistStack) :
     m_playlistStack(playlistStack),
     m_historyPlaylist(0),
     m_upcomingPlaylist(0),
     m_playerManager(player),
     m_importPlaylists(true),
     m_searchEnabled(true),
     m_playing(false),
     m_showMorePlaylist(0),
     m_belowShowMorePlaylist(0),
     m_dynamicPlaylist(0),
     m_belowDistraction(0),
     m_distraction(0)
 {
     //new CollectionAdaptor( this );
     //QDBus::sessionBus().registerObject("/Collection",this );
     m_instance = this;
 
     m_actionHandler = new ActionHandler(this);
 
 #if KIO_VERSION < QT_VERSION_CHECK(5, 82, 0)
     // KDirLister's auto error handling seems to crash JuK during startup in
     // readConfig().  This auto handler was removed in KF5.82 so no longer
     // needs disabled afterward.
 
     m_dirLister.setAutoErrorHandlingEnabled(false, playlistStack);
 #endif
 
     readConfig();
 }
 
 PlaylistCollection::~PlaylistCollection()
 {
     saveConfig();
     CollectionList::instance()->saveItemsToCache();
     delete m_actionHandler;
     Playlist::setShuttingDown();
 }
 
 QString PlaylistCollection::name() const
 {
     return currentPlaylist()->name();
 }
 
 FileHandle PlaylistCollection::currentFile() const
 {
     return currentPlaylist()->currentFile();
 }
 
 int PlaylistCollection::count() const
 {
     return currentPlaylist()->count();
 }
 
 int PlaylistCollection::time() const
 {
     return currentPlaylist()->time();
 }
 
 void PlaylistCollection::playFirst()
 {
     m_playing = true;
     currentPlaylist()->playFirst();
     currentPlayingItemChanged();
 }
 
 void PlaylistCollection::playNextAlbum()
 {
     m_playing = true;
     currentPlaylist()->playNextAlbum();
     currentPlayingItemChanged();
 }
 
 void PlaylistCollection::playPrevious()
 {
     m_playing = true;
     currentPlaylist()->playPrevious();
     currentPlayingItemChanged();
 }
 
 void PlaylistCollection::playNext()
 {
     m_playing = true;
     currentPlaylist()->playNext();
     currentPlayingItemChanged();
 }
 
 void PlaylistCollection::stop()
 {
     m_playing = false;
     currentPlaylist()->stop();
     playlistItemsChanged();
 }
 
 bool PlaylistCollection::playing() const
 {
     return m_playing;
 }
 
 QStringList PlaylistCollection::playlists() const
 {
     QStringList l;
 
     //(or qFindChildren() if you need MSVC 6 compatibility)
     const auto childList = m_playlistStack->findChildren<Playlist *>("Playlist");
     for(Playlist *p : childList) {
         l.append(p->name());
     }
 
     return l;
 }
 
 void PlaylistCollection::createPlaylist(const QString &name)
 {
     raise(new Playlist(this, name));
 }
 
 void PlaylistCollection::createDynamicPlaylist(const PlaylistList &playlists)
 {
     if(m_dynamicPlaylist)
         m_dynamicPlaylist->setPlaylists(playlists);
     else {
         m_dynamicPlaylist =
             new DynamicPlaylist(playlists, this, i18n("Dynamic List"), "audio-midi", false, true);
         PlaylistCollection::setupPlaylist(m_dynamicPlaylist, QString());
     }
 
     PlaylistCollection::raise(m_dynamicPlaylist);
 }
 
 void PlaylistCollection::showMore(const QString &artist, const QString &album)
 {
     if(showMoreActive()) {
         clearShowMore();
     }
 
     PlaylistList playlists;
     PlaylistSearch::ComponentList components;
 
     playlists.append(visiblePlaylist());
 
     if(!artist.isEmpty()) {
         // Just setting off the artist stuff in its own block.
         ColumnList columns;
         columns.append(PlaylistItem::ArtistColumn);
         PlaylistSearch::Component c(artist, false, columns,
                                     PlaylistSearch::Component::Exact);
         components.append(c);
     }
 
     if(!album.isEmpty()) {
         ColumnList columns;
         columns.append(PlaylistItem::AlbumColumn);
         PlaylistSearch::Component c(album, false, columns,
                                     PlaylistSearch::Component::Exact);
         components.append(c);
     }
 
     auto search = new PlaylistSearch(playlists, components,
             PlaylistSearch::MatchAll, collectionActions());
 
     if(m_showMorePlaylist)
         m_showMorePlaylist->setPlaylistSearch(search);
     else
         m_showMorePlaylist = new SearchPlaylist(this, *search, i18n("Now Playing"), false, true);
 
     // The call to raise() below will end up clearing m_belowShowMorePlaylist,
     // so cache the value we want it to have now.
     Playlist *belowShowMore = visiblePlaylist();
 
     PlaylistCollection::setupPlaylist(m_showMorePlaylist, QString());
     PlaylistCollection::raise(m_showMorePlaylist);
 
     m_belowShowMorePlaylist = belowShowMore;
 }
 
 void PlaylistCollection::removeTrack(const QString &playlist, const QStringList &files)
 {
     Playlist *p = playlistByName(playlist);
     PlaylistItemList itemList;
     if(!p)
         return;
 
     QStringList::ConstIterator it;
     for(it = files.begin(); it != files.end(); ++it) {
         CollectionListItem *item = CollectionList::instance()->lookup(*it);
 
         if(item) {
             PlaylistItem *playlistItem = item->itemForPlaylist(p);
             if(playlistItem)
                 itemList.append(playlistItem);
         }
     }
 
     p->clearItems(itemList);
 }
 
 QString PlaylistCollection::playlist() const
 {
     return visiblePlaylist() ? visiblePlaylist()->name() : QString();
 }
 
 QString PlaylistCollection::playingPlaylist() const
 {
     return currentPlaylist() && m_playing ? currentPlaylist()->name() : QString();
 }
 
 void PlaylistCollection::setPlaylist(const QString &playlist)
 {
     Playlist *p = playlistByName(playlist);
     if(p)
         raise(p);
 }
 
 QStringList PlaylistCollection::playlistTracks(const QString &playlist) const
 {
     Playlist *p = playlistByName(playlist);
 
     if(p)
         return p->files();
     return QStringList();
 }
 
 QString PlaylistCollection::trackProperty(const QString &file, const QString &property) const
 {
     CollectionList *l = CollectionList::instance();
     CollectionListItem *item = l->lookup(file);
 
     return item ? item->file().property(property) : QString();
 }
 
 QPixmap PlaylistCollection::trackCover(const QString &file, const QString &size) const
 {
     if(size.toLower() != "small" && size.toLower() != "large")
         return QPixmap();
 
     CollectionList *l = CollectionList::instance();
     CollectionListItem *item = l->lookup(file);
 
     if(!item)
         return QPixmap();
 
     if(size.toLower() == "small")
         return item->file().coverInfo()->pixmap(CoverInfo::Thumbnail);
     else
         return item->file().coverInfo()->pixmap(CoverInfo::FullSize);
 }
 
 void PlaylistCollection::open(const QStringList &l)
 {
     QStringList files = l;
 
     if(files.isEmpty())
         files = MediaFiles::openDialog(JuK::JuKInstance());
 
     if(files.isEmpty())
         return;
 
     bool justPlaylists = true;
 
     for(QStringList::ConstIterator it = files.constBegin(); it != files.constEnd() && justPlaylists; ++it)
         justPlaylists = !MediaFiles::isPlaylistFile(*it);
 
     if(visiblePlaylist() == CollectionList::instance() || justPlaylists ||
        KMessageBox::questionYesNo(
            JuK::JuKInstance(),
            i18n("Do you want to add these items to the current list or to the collection list?"),
            QString(),
            KGuiItem(i18nc("current playlist", "Current")),
            KGuiItem(i18n("Collection"))) == KMessageBox::No)
     {
         CollectionList::instance()->addFiles(files);
     }
     else {
         visiblePlaylist()->addFiles(files);
     }
 
     playlistItemsChanged();
 }
 
 void PlaylistCollection::open(const QString &playlist, const QStringList &files)
 {
     Playlist *p = playlistByName(playlist);
 
     if(p)
         p->addFiles(files);
 }
 
 void PlaylistCollection::addFolder()
 {
     DirectoryList l(m_folderList, m_excludedFolderList, m_importPlaylists, JuK::JuKInstance());
 
     if(l.exec() == QDialog::Accepted) {
         m_dirLister.blockSignals(true);
         DirectoryList::Result result = l.dialogResult();
 
         const bool reload = m_importPlaylists != result.addPlaylists;
 
         m_importPlaylists = result.addPlaylists;
         m_excludedFolderList = canonicalizeFolderPaths(result.excludedDirs);
 
         foreach(const QString &dir, result.addedDirs) {
             m_dirLister.openUrl(QUrl::fromLocalFile(dir), KDirLister::Keep);
             m_folderList.append(dir);
         }
 
         foreach(const QString &dir, result.removedDirs) {
             m_dirLister.stop(QUrl::fromLocalFile(dir));
             m_folderList.removeAll(dir);
         }
 
         if(reload) {
             open(m_folderList);
         }
         else if(!result.addedDirs.isEmpty()) {
             open(result.addedDirs);
         }
 
         saveConfig();
 
         m_dirLister.blockSignals(false);
     }
 }
 
 void PlaylistCollection::rename()
 {
     QString old = visiblePlaylist()->name();
     QString name = playlistNameDialog(i18n("Rename"), old, false);
 
     m_playlistNames.remove(old);
 
     if(name.isEmpty())
         return;
 
     visiblePlaylist()->setName(name);
 }
 
 void PlaylistCollection::duplicate()
 {
     QString name = playlistNameDialog(i18nc("verb, copy the playlist", "Duplicate"),
                                       visiblePlaylist()->name());
     if(name.isEmpty())
         return;
 
     raise(new Playlist(this, visiblePlaylist()->items(), name));
 }
 
 void PlaylistCollection::save()
 {
     visiblePlaylist()->save();
 }
 
 void PlaylistCollection::saveAs()
 {
     visiblePlaylist()->saveAs();
 }
 
 void PlaylistCollection::reload()
 {
     if(visiblePlaylist() == CollectionList::instance())
         CollectionList::instance()->addFiles(m_folderList);
     else
         visiblePlaylist()->slotReload();
 
 }
 
 void PlaylistCollection::editSearch()
 {
     SearchPlaylist *p = dynamic_cast<SearchPlaylist *>(visiblePlaylist());
     if(!p)
         return;
 
     auto searchDialog = new AdvancedSearchDialog(
             p->name(), *(p->playlistSearch()), JuK::JuKInstance());
     QObject::connect(searchDialog, &QDialog::finished, p, [searchDialog, p](int result)
             {
                 if (result) {
                     p->setPlaylistSearch(searchDialog->resultSearch());
                     p->setName(searchDialog->resultPlaylistName());
                 }
                 searchDialog->deleteLater();
             });
     searchDialog->exec();
 }
 
 void PlaylistCollection::removeItems()
 {
     visiblePlaylist()->slotRemoveSelectedItems();
 }
 
 void PlaylistCollection::refreshItems()
 {
     visiblePlaylist()->slotRefresh();
 }
 
 void PlaylistCollection::openItemDir()
 {
     visiblePlaylist()->slotOpenItemDir();
 }
 
 void PlaylistCollection::renameItems()
 {
     visiblePlaylist()->slotRenameFile();
 }
 
 void PlaylistCollection::addLocalCover()
 {
     visiblePlaylist()->slotAddCover(true /* from file */);
     playlistItemsChanged();
 }
 
 void PlaylistCollection::addInternetCover()
 {
     visiblePlaylist()->slotAddCover(false /* not from file */);
     playlistItemsChanged();
 }
 
 void PlaylistCollection::removeCovers()
 {
     visiblePlaylist()->slotRemoveCover();
     playlistItemsChanged();
 }
 
 void PlaylistCollection::viewCovers()
 {
     visiblePlaylist()->slotViewCover();
 }
 
 void PlaylistCollection::showCoverManager()
 {
     visiblePlaylist()->slotShowCoverManager();
 }
 
 PlaylistItemList PlaylistCollection::selectedItems()
 {
     return visiblePlaylist()->selectedItems();
 }
 
 void PlaylistCollection::scanFolders()
 {
     // If no music folder was configured, open music folder dialog
     if(m_folderList.count() == 0)
         addFolder();
 
     CollectionList::instance()->addFiles(m_folderList);
 
     enableDirWatch(true);
 }
 
 void PlaylistCollection::createPlaylist()
 {
     QString name = playlistNameDialog();
     if(!name.isEmpty())
         raise(new Playlist(this, name));
 }
 
 void PlaylistCollection::createSearchPlaylist()
 {
     QString name = uniquePlaylistName(i18n("Search Playlist"));
 
     auto searchDialog = new AdvancedSearchDialog(
             name, *(new PlaylistSearch(JuK::JuKInstance())), JuK::JuKInstance());
     QObject::connect(searchDialog, &QDialog::finished, collectionActions(),
             [searchDialog, this](int result) {
                 if (result) {
                     raise(new SearchPlaylist(
                                 this,
                                 *searchDialog->resultSearch(),
                                 searchDialog->resultPlaylistName()));
                 }
                 searchDialog->deleteLater();
             });
     searchDialog->exec();
 }
 
 void PlaylistCollection::createFolderPlaylist()
 {
     QString folder = QFileDialog::getExistingDirectory();
 
     if(folder.isEmpty())
         return;
 
     QString name = uniquePlaylistName(folder.mid(folder.lastIndexOf('/') + 1));
     name = playlistNameDialog(i18n("Create Folder Playlist"), name);
 
     if(!name.isEmpty())
         raise(new FolderPlaylist(this, folder, name));
 }
 
 void PlaylistCollection::guessTagFromFile()
 {
     visiblePlaylist()->slotGuessTagInfo(TagGuesser::FileName);
 }
 
 void PlaylistCollection::guessTagFromInternet()
 {
     visiblePlaylist()->slotGuessTagInfo(TagGuesser::MusicBrainz);
 }
 
 void PlaylistCollection::setSearchEnabled(bool enable)
 {
     if(enable == m_searchEnabled)
         return;
 
     m_searchEnabled = enable;
 
     visiblePlaylist()->setSearchEnabled(enable);
 }
 
 HistoryPlaylist *PlaylistCollection::historyPlaylist() const
 {
     return m_historyPlaylist;
 }
 
 void PlaylistCollection::setHistoryPlaylistEnabled(bool enable)
 {
     if(enable == static_cast<bool>(m_historyPlaylist)) {
         return;
     }
 
     if(enable) {
         ActionCollection::action<KToggleAction>("showHistory")->setChecked(true);
         m_historyPlaylist = new HistoryPlaylist(this);
         m_historyPlaylist->setName(i18n("History"));
         setupPlaylist(m_historyPlaylist, "view-history");
 
         QObject::connect(
                 m_playerManager,   &PlayerManager::signalItemChanged,
                 historyPlaylist(), &HistoryPlaylist::appendProposedItem);
     }
     else {
         delete m_historyPlaylist;
         m_historyPlaylist = nullptr;
     }
 }
 
 UpcomingPlaylist *PlaylistCollection::upcomingPlaylist() const
 {
     return m_upcomingPlaylist;
 }
 
 void PlaylistCollection::setUpcomingPlaylistEnabled(bool enable)
 {
     if(enable == static_cast<bool>(m_upcomingPlaylist))
         return;
 
     ActionCollection::action<KToggleAction>("showUpcoming")->setChecked(enable);
     if(enable) {
         m_upcomingPlaylist = new UpcomingPlaylist(this);
         setupPlaylist(m_upcomingPlaylist, "go-jump-today");
     }
     else {
         if(visiblePlaylist() == m_upcomingPlaylist) {
             raise(CollectionList::instance());
         }
 
         m_upcomingPlaylist->deleteLater();
         m_upcomingPlaylist = nullptr;
     }
 }
 
 PlaylistCollection::ActionHandler *PlaylistCollection::collectionActions() const
 {
     return m_actionHandler;
 }
 
 Playlist *PlaylistCollection::currentPlaylist() const
 {
     if(m_belowDistraction)
         return m_belowDistraction;
 
     if(m_upcomingPlaylist && m_upcomingPlaylist->topLevelItemCount() > 0)
         return m_upcomingPlaylist;
 
     if(Playlist::playingItem())
         return Playlist::playingItem()->playlist();
     else
         return visiblePlaylist();
 }
 
 Playlist *PlaylistCollection::visiblePlaylist() const
 {
     return qobject_cast<Playlist *>(m_playlistStack->currentWidget());
 }
 
 void PlaylistCollection::raise(Playlist *playlist)
 {
     if(m_showMorePlaylist && currentPlaylist() == m_showMorePlaylist)
         m_showMorePlaylist->lower(playlist);
     if(m_dynamicPlaylist && currentPlaylist() == m_dynamicPlaylist)
         m_dynamicPlaylist->lower(playlist);
 
     playlist->applySharedSettings();
     playlist->setSearchEnabled(m_searchEnabled);
     m_playlistStack->setCurrentWidget(playlist);
     clearShowMore(false);
 
     const auto playingItem = Playlist::playingItem();
     if(playingItem && visiblePlaylist() != playlist && playingItem->playlist() == playlist) {
         playlist->scrollToItem(playingItem, QAbstractItemView::PositionAtCenter);
     }
 
     playlistItemsChanged();
 }
 
 ////////////////////////////////////////////////////////////////////////////////
 // protected methods
 ////////////////////////////////////////////////////////////////////////////////
 
 QStackedWidget *PlaylistCollection::playlistStack() const
 {
     return m_playlistStack;
 }
 
 void PlaylistCollection::setupPlaylist(Playlist *playlist, const QString &)
 {
     if(!playlist->fileName().isEmpty())
         m_playlistFiles.insert(playlist->fileName());
 
     if(!playlist->name().isEmpty())
         m_playlistNames.insert(playlist->name());
 
     m_playlistStack->addWidget(playlist);
     QObject::connect(playlist, SIGNAL(itemSelectionChanged()),
                      collectionActions(), SIGNAL(signalSelectedItemsChanged()));
 }
 
 bool PlaylistCollection::importPlaylists() const
 {
     return m_importPlaylists;
 }
 
 bool PlaylistCollection::containsPlaylistFile(const QString &file) const
 {
     return m_playlistFiles.contains(file);
 }
 
 bool PlaylistCollection::showMoreActive() const
 {
     return visiblePlaylist() == m_showMorePlaylist;
 }
 
 void PlaylistCollection::clearShowMore(bool raisePlaylist)
 {
     if(!m_showMorePlaylist)
         return;
 
     const auto playingItem = currentPlaylist()->playingItem();
     if(playingItem && playingItem->playlist() == m_showMorePlaylist) {
         // Reset the playing indicator to the corresponding CollectionList item
         playingItem->collectionItem()->setPlaying(true, true);
     }
 
     if(raisePlaylist) {
         if(m_belowShowMorePlaylist)
             raise(m_belowShowMorePlaylist);
         else
             raise(CollectionList::instance());
     }
 
     m_belowShowMorePlaylist = nullptr;
 }
 
 void PlaylistCollection::enableDirWatch(bool enable)
 {
     auto collection = CollectionList::instance();
 
     m_dirLister.disconnect(collectionActions());
     if(enable) {
         QObject::connect(&m_dirLister, &KDirLister::newItems,
                 collectionActions(), [this](const KFileItemList &items) {
                     this->newItems(items);
                 });
         QObject::connect(&m_dirLister, &KDirLister::refreshItems,
                 collection, &CollectionList::slotRefreshItems);
         QObject::connect(&m_dirLister, &KDirLister::itemsDeleted,
                 collection, &CollectionList::slotDeleteItems);
     }
 }
 
 QString PlaylistCollection::playlistNameDialog(const QString &caption,
                                                const QString &suggest,
                                                bool forceUnique) const
 {
     bool ok;
 
     QString name = QInputDialog::getText(
         m_playlistStack,
         caption,
         i18n("Please enter a name for this playlist:"),
         QLineEdit::Normal,
         forceUnique ? uniquePlaylistName(suggest) : suggest,
         &ok);
 
     return ok ? uniquePlaylistName(name) : QString();
 }
 
 
 QString PlaylistCollection::uniquePlaylistName(const QString &suggest) const
 {
     if(suggest.isEmpty())
         return uniquePlaylistName();
 
     if(!m_playlistNames.contains(suggest))
         return suggest;
 
     QString base = suggest;
     base.remove(QRegExp("\\s\\([0-9]+\\)$"));
 
     int count = 1;
     QString s = QString("%1 (%2)").arg(base).arg(count);
 
     while(m_playlistNames.contains(s)) {
         count++;
         s = QString("%1 (%2)").arg(base).arg(count);
     }
 
     return s;
 }
 
 void PlaylistCollection::addNameToDict(const QString &name)
 {
     m_playlistNames.insert(name);
 }
 
 void PlaylistCollection::addFileToDict(const QString &file)
 {
     m_playlistFiles.insert(file);
 }
 
 void PlaylistCollection::removeNameFromDict(const QString &name)
 {
     m_playlistNames.remove(name);
 }
 
 void PlaylistCollection::removeFileFromDict(const QString &file)
 {
     m_playlistFiles.remove(file);
 }
 
 void PlaylistCollection::dirChanged(const QString &path)
 {
     QString canonicalPath = QDir(path).canonicalPath();
     if(canonicalPath.isEmpty())
         return;
 
     foreach(const QString &excludedFolder, m_excludedFolderList) {
         if(canonicalPath.startsWith(excludedFolder))
             return;
     }
 
     CollectionList::instance()->addFiles(QStringList(canonicalPath));
 }
 
 Playlist *PlaylistCollection::playlistByName(const QString &name) const
 {
     for(int i = 0; i < m_playlistStack->count(); ++i) {
         Playlist *p = qobject_cast<Playlist *>(m_playlistStack->widget(i));
         if(p && p->name() == name)
             return p;
     }
 
     return 0;
 }
 
 void PlaylistCollection::newItems(const KFileItemList &list) const
 {
     // Make fast-path for the normal case
     if(m_excludedFolderList.isEmpty()) {
         CollectionList::instance()->slotNewItems(list);
         return;
     }
 
     // Slow case: Directories to exclude from consideration
 
     KFileItemList filteredList(list);
 
     foreach(const QString &excludedFolder, m_excludedFolderList) {
         QMutableListIterator<KFileItem> filteredListIterator(filteredList);
 
         while(filteredListIterator.hasNext()) {
             const KFileItem fileItem = filteredListIterator.next();
 
             if(fileItem.url().path().startsWith(excludedFolder))
                 filteredListIterator.remove();
         }
     }
 
     CollectionList::instance()->slotNewItems(filteredList);
 }
 
 ////////////////////////////////////////////////////////////////////////////////
 // private methods
 ////////////////////////////////////////////////////////////////////////////////
 
 void PlaylistCollection::readConfig()
 {
     KConfigGroup config(KSharedConfig::openConfig(), "Playlists");
 
     m_importPlaylists    = config.readEntry("ImportPlaylists", true);
     m_folderList         = config.readEntry("DirectoryList", QStringList());
     m_excludedFolderList = canonicalizeFolderPaths(
             config.readEntry("ExcludeDirectoryList", QStringList()));
 
     for(const auto &folder : qAsConst(m_folderList)) {
         m_dirLister.openUrl(QUrl::fromUserInput(folder), KDirLister::Keep);
     }
 }
 
 void PlaylistCollection::saveConfig()
 {
     KConfigGroup config(KSharedConfig::openConfig(), "Playlists");
     config.writeEntry("ImportPlaylists", m_importPlaylists);
     config.writeEntry("showUpcoming", ActionCollection::action("showUpcoming")->isChecked());
     config.writePathEntry("DirectoryList", m_folderList);
     config.writePathEntry("ExcludeDirectoryList", m_excludedFolderList);
 
     config.sync();
 }
 
 ////////////////////////////////////////////////////////////////////////////////
 // ActionHandler implementation
 ////////////////////////////////////////////////////////////////////////////////
 
 PlaylistCollection::ActionHandler::ActionHandler(PlaylistCollection *collection)
   : QObject(nullptr)
   , m_collection(collection)
 {
     using namespace IconSupport; // ""_icon
 
     setObjectName(QLatin1String("ActionHandler"));
 
     KActionMenu *menu;
     KActionCollection *actionCollection = ActionCollection::actions();
 
     // "New" menu
 
     menu = new KActionMenu("document-new"_icon, i18nc("new playlist", "&New"), this);
     actionCollection->addAction("file_new", menu);
 
     menu->addAction(createAction(i18n("&Empty Playlist..."),
                 qOverload<>(&PlaylistCollection::createPlaylist),
                 "newPlaylist", "window-new",
                 QKeySequence(Qt::CTRL + Qt::Key_N)));
     menu->addAction(createAction(i18n("&Search Playlist..."),
                 &PlaylistCollection::createSearchPlaylist,
                 "newSearchPlaylist", "edit-find",
                 QKeySequence(Qt::CTRL + Qt::Key_F)));
     menu->addAction(createAction(i18n("Playlist From &Folder..."),
                 &PlaylistCollection::createFolderPlaylist,
                 "newDirectoryPlaylist", "document-open",
                 QKeySequence(Qt::CTRL + Qt::Key_D)));
 
     // Guess tag info menu
 
 #if HAVE_TUNEPIMP
     menu = new KActionMenu(i18n("&Guess Tag Information"), actionCollection);
     actionCollection->addAction("guessTag", menu);
 
     menu->setIcon("wizard"_icon);
 
     menu->addAction(createAction(i18n("From &File Name"),
                 &PlaylistCollection::guessTagFromFile,
                 "guessTagFile", "document-import",
                 QKeySequence(Qt::CTRL + Qt::Key_G)));
     menu->addAction(createAction(i18n("From &Internet"),
                 &PlaylistCollection::guessTagFromInternet,
                 "guessTagInternet", "network-server",
                 QKeySequence(Qt::CTRL + Qt::Key_I)));
 #else
     createAction(i18n("Guess Tag Information From &File Name"),
                 &PlaylistCollection::guessTagFromFile,
                 "guessTag", "document-import",
                 QKeySequence(Qt::CTRL + Qt::Key_G));
 #endif
 
 
     createAction(i18n("Play First Track"), &PlaylistCollection::playFirst,
             "playFirst");
     createAction(i18n("Play Next Album"), &PlaylistCollection::playNextAlbum,
             "forwardAlbum", "go-down-search");
 
     KStandardAction::open(this, SLOT(slotOpen()), actionCollection);
     KStandardAction::save(this, SLOT(slotSave()), actionCollection);
     KStandardAction::saveAs(this, SLOT(slotSaveAs()), actionCollection);
 
     createAction(i18n("Manage &Folders..."), &PlaylistCollection::addFolder,
             "openDirectory", "folder-new");
     createAction(i18n("&Rename..."), &PlaylistCollection::rename,
             "renamePlaylist", "edit-rename");
     createAction(i18nc("verb, copy the playlist", "D&uplicate..."),
                  &PlaylistCollection::duplicate,
                  "duplicatePlaylist", "edit-copy");
     createAction(i18n("R&emove"), &PlaylistCollection::remove,
             "deleteItemPlaylist", "user-trash");
     createAction(i18n("Reload"), &PlaylistCollection::reload,
             "reloadPlaylist", "view-refresh");
     createAction(i18n("Edit Search..."), &PlaylistCollection::editSearch,
             "editSearch");
 
     createAction(i18n("&Delete"), &PlaylistCollection::removeItems,
             "removeItem", "edit-delete");
     createAction(i18n("Refresh"), &PlaylistCollection::refreshItems,
             "refresh", "view-refresh");
     createAction(i18n("Open Containing Folder"), &PlaylistCollection::openItemDir,
             "openItemDir", "stock_folder");
     createAction(i18n("&Rename File"), &PlaylistCollection::renameItems,
             "renameFile", "document-save-as",
             QKeySequence(Qt::CTRL + Qt::Key_R));
 
     menu = new KActionMenu(i18n("Cover Manager"), actionCollection);
     actionCollection->addAction("coverManager", menu);
     menu->setIcon("image-x-generic"_icon);
     menu->addAction(createAction(i18n("&View Cover"),
         &PlaylistCollection::viewCovers, "viewCover", "document-preview"));
     menu->addAction(createAction(i18n("Get Cover From &File..."),
         &PlaylistCollection::addLocalCover, "addCover", "document-import",
         QKeySequence(Qt::CTRL + Qt::SHIFT + Qt::Key_F)));
     menu->addAction(createAction(i18n("Get Cover From &Internet..."),
         &PlaylistCollection::addInternetCover,
         "webImageCover", "network-server",
         QKeySequence(Qt::CTRL + Qt::SHIFT + Qt::Key_G)));
     menu->addAction(createAction(i18n("&Delete Cover"),
         &PlaylistCollection::removeCovers, "removeCover", "edit-delete"));
     menu->addAction(createAction(i18n("Show Cover &Manager"),
         &PlaylistCollection::showCoverManager, "showCoverManager"));
 
     auto upcomingAction = new KToggleAction(
             "go-jump-today"_icon, i18n("Show &Play Queue"), actionCollection);
     actionCollection->addAction("showUpcoming", upcomingAction);
 
     connect(upcomingAction, &KToggleAction::triggered,
             this, [this](bool enable) {
                 m_collection->setUpcomingPlaylistEnabled(enable);
             });
 
     connect(m_collection->m_playerManager, &PlayerManager::signalStop,
             this, [this]() { m_collection->stop(); });
 }
 
 //
 // Used with ActionHandler::createAction below to dispatch QAction::triggered(bool) to slots
 // that will actually use the bool parameter... or not, as the case may be
 //
 
 template<int k = 1>
 static void invokeSlot(PlaylistCollection *c, void (PlaylistCollection::*ptr)(bool), bool b)
 {
     (c->*ptr)(b);
 }
 
 template<int k = 0>
 static void invokeSlot(PlaylistCollection *c, void (PlaylistCollection::*ptr)(), bool)
 {
     (c->*ptr)();
 }
 
 template<typename ... PMFArg>
 QAction *PlaylistCollection::ActionHandler::createAction(
     const QString &text
   , void (PlaylistCollection::*slot)(PMFArg...)
   , const char *name
   , const QString &icon
   , const QKeySequence &shortcut
   )
 {
     KActionCollection *actionCollection = ActionCollection::actions();
     QAction *action = new QAction(text, actionCollection);
 
     if(!icon.isEmpty()) {
         action->setIcon(QIcon::fromTheme(icon));
     }
 
     QObject::connect(action, &QAction::triggered, this,
             [this, slot](bool b) -> void {
                 invokeSlot<sizeof...(PMFArg)>(m_collection, slot, b);
             });
 
     actionCollection->addAction(name, action);
 
     if (!shortcut.isEmpty()) {
         actionCollection->setDefaultShortcut(action, shortcut);
     }
     return action;
 }
 
 // vim: set et sw=4 tw=0 sta: