Added play next. fixes #289

approot/artist.xml

@@ -10,8 +10,9 @@
 			${play-btn class="btn btn-primary"}
 			<button type="button" class="btn btn-primary dropdown-toggle dropdown-toggle-split" data-bs-toggle="dropdown" aria-expanded="false"/>
 			<ul class="dropdown-menu">
-				<li>${play-shuffled class="dropdown-item"}</li>
+				<li>${play-next class="dropdown-item"}</li>
 				<li>${play-last class="dropdown-item"}</li>
+				<li>${play-shuffled class="dropdown-item"}</li>
 				<li>${star class="dropdown-item"}</li>
 				${<if-has-mbid>}
 				<li><a href="${mbid-link}" target="_blank" class="dropdown-item">${tr:Lms.Explore.musicbrainz-artist}</a></li>

approot/messages.xml

@@ -132,6 +132,7 @@
 <message id="Lms.Explore.musicbrainz-release">MusicBrainz Release</message>
 <message id="Lms.Explore.play">Play</message>
 <message id="Lms.Explore.play-last">Play last</message>
+<message id="Lms.Explore.play-next">Play next</message>
 <message id="Lms.Explore.play-shuffled">Play shuffled</message>
 <message id="Lms.Explore.random">Random</message>
 <message id="Lms.Explore.recently-added">Recently added</message>

approot/messages_fr.xml

@@ -132,6 +132,7 @@
 <message id="Lms.Explore.musicbrainz-release">MusicBrainz Release</message>
 <message id="Lms.Explore.play">Jouer</message>
 <message id="Lms.Explore.play-last">Jouer en dernier</message>
+<message id="Lms.Explore.play-next">Jouer ensuite</message>
 <message id="Lms.Explore.play-shuffled">Jouer aléatoirement</message>
 <message id="Lms.Explore.random">Aléatoire</message>
 <message id="Lms.Explore.recently-added">Ajoutés récemment</message>

approot/messages_it.xml

@@ -132,6 +132,7 @@
 <message id="Lms.Explore.musicbrainz-release">Album MusicBrainz</message>
 
 <message id="Lms.Explore.play-last">Aggiungi alla coda di riproduzione</message>
+
 <message id="Lms.Explore.play-shuffled">Aggiungi alla coda di riproduzione mischiando</message>
 <message id="Lms.Explore.random">Casuali</message>
 <message id="Lms.Explore.recently-added">Aggiunti di recente</message>

approot/messages_zh.xml

@@ -132,6 +132,7 @@
 <message id="Lms.Explore.musicbrainz-release">MusicBrainz 专辑</message>
 <message id="Lms.Explore.play">播放</message>
 <message id="Lms.Explore.play-last">最后播放</message>
+
 <message id="Lms.Explore.play-shuffled">随机播放</message>
 <message id="Lms.Explore.random">随机</message>
 <message id="Lms.Explore.recently-added">最近添加</message>

approot/release.xml

@@ -21,8 +21,9 @@
 				${play-btn class="btn btn-primary"}
 				<button type="button" class="btn btn-primary dropdown-toggle dropdown-toggle-split" data-bs-toggle="dropdown" aria-expanded="false"/>
 				<ul class="dropdown-menu">
-					<li>${play-shuffled class="dropdown-item"}</li>
+					<li>${play-next class="dropdown-item"}</li>
 					<li>${play-last class="dropdown-item"}</li>
+					<li>${play-shuffled class="dropdown-item"}</li>
 					<li>${star class="dropdown-item"}</li>
 					${<if-has-mbid>}
 					<li><a href="${mbid-link}" target="_blank" class="dropdown-item">${tr:Lms.Explore.musicbrainz-release}</a></li>
@@ -82,7 +83,8 @@
 			<div class="dropdown d-inline-block">
 				${more-btn data-bs-toggle="dropdown" aria-expanded="false" class="btn btn-sm btn-outline-secondary border-0"}
 				<ul class="dropdown-menu" aria-labelledby="${id:more-btn}">
-					<li>${play class="dropdown-item"}</li>
+					<li class="d-block d-sm-none">${play class="dropdown-item"}</li>
+					<li>${play-next class="dropdown-item"}</li>
 					<li>${play-last class="dropdown-item"}</li>
 					<li>${star class="dropdown-item"}</li>
 					<li>${download class="dropdown-item"}</li>

approot/releases.xml

@@ -28,6 +28,7 @@
 			${play-btn class="btn btn-primary"}
 			<button type="button" class="btn btn-primary dropdown-toggle dropdown-toggle-split" data-bs-toggle="dropdown" aria-expanded="false"/>
 			<ul class="dropdown-menu">
+				<li>${play-next class="dropdown-item"}</li>
 				<li>${play-last class="dropdown-item"}</li>
 				<li>${play-shuffled class="dropdown-item"}</li>
 			</ul>

approot/tracks.xml

@@ -29,6 +29,7 @@
 			${play-btn class="btn btn-primary"}
 			<button type="button" class="btn btn-primary dropdown-toggle dropdown-toggle-split" data-bs-toggle="dropdown" aria-expanded="false"/>
 			<ul class="dropdown-menu">
+				<li>${play-next class="dropdown-item"}</li>
 				<li>${play-last class="dropdown-item"}</li>
 				<li>${play-shuffled class="dropdown-item"}</li>
 			</ul>
@@ -69,7 +70,8 @@
 			<div class="dropdown d-inline-block">
 				${more-btn data-bs-toggle="dropdown" aria-expanded="false" class="btn btn-sm btn-outline-secondary border-0"}
 				<ul class="dropdown-menu" aria-labelledby="${id:more-btn}">
-					<li>${play class="dropdown-item"}</li>
+					<li class="d-block d-sm-none">${play class="dropdown-item"}</li>
+					<li>${play-next class="dropdown-item"}</li>
 					<li>${play-last class="dropdown-item"}</li>
 					<li>${star class="dropdown-item"}</li>
 					<li>${download class="dropdown-item"}</li>

src/libs/services/database/impl/TrackList.cpp

@@ -149,7 +149,7 @@ TrackList::getEntry(std::size_t pos) const
 {
 	TrackListEntry::pointer res;
 
-	auto entries = getEntries(pos, 1);
+	auto entries = getEntries(Range {pos, 1});
 	if (!entries.empty())
 		res = entries.front();
 
@@ -157,7 +157,7 @@ TrackList::getEntry(std::size_t pos) const
 }
 
 std::vector<TrackListEntry::pointer>
-TrackList::getEntries(std::optional<std::size_t> offset, std::optional<std::size_t> size) const
+TrackList::getEntries(std::optional<Range> range) const
 {
 	assert(session());
 
@@ -165,8 +165,8 @@ TrackList::getEntries(std::optional<std::size_t> offset, std::optional<std::size
 		session()->find<TrackListEntry>()
 		.where("tracklist_id = ?").bind(getId())
 		.orderBy("id")
-		.limit(size ? static_cast<int>(*size) : -1)
+		.limit(range ? static_cast<int>(range->size) + 1 : -1)
-		.offset(offset ? static_cast<int>(*offset) : -1)
+		.offset(range ? static_cast<int>(range->offset) : -1)
 		.resultList()};
 
 	return std::vector<TrackListEntry::pointer>(entries.begin(), entries.end());
@@ -671,7 +671,7 @@ TrackListEntry::TrackListEntry(ObjectPtr<Track> track, ObjectPtr<TrackList> trac
 TrackListEntry::pointer
 TrackListEntry::create(Session& session, ObjectPtr<Track> track, ObjectPtr<TrackList> tracklist, const Wt::WDateTime& dateTime)
 {
-	return session.getDboSession().add(std::unique_ptr<TrackListEntry>( new TrackListEntry {track, tracklist, dateTime}));
+	return session.getDboSession().add(std::unique_ptr<TrackListEntry> {new TrackListEntry {track, tracklist, dateTime}});
 }
 
 void

src/libs/services/database/include/services/database/TrackList.hpp

@@ -90,7 +90,7 @@ class TrackList final : public Object<TrackList, TrackListId>
 		bool										isEmpty() const;
 		std::size_t									getCount() const;
 		ObjectPtr<TrackListEntry>					getEntry(std::size_t pos) const;
-		std::vector<ObjectPtr<TrackListEntry>>		getEntries(std::optional<std::size_t> offset = {}, std::optional<std::size_t> size = {}) const;
+		std::vector<ObjectPtr<TrackListEntry>>		getEntries(std::optional<Range> range = {}) const;
 		ObjectPtr<TrackListEntry>					getEntryByTrackAndDateTime(ObjectPtr<Track> track, const Wt::WDateTime& dateTime) const;
 
 		std::vector<ObjectPtr<Artist>>				getArtists(const std::vector<ClusterId>& clusters, std::optional<TrackArtistLinkType> linkType, ArtistSortMethod sortMethod, std::optional<Range> range, bool& moreResults) const;
@@ -144,7 +144,7 @@ class TrackList final : public Object<TrackList, TrackListId>
 		Wt::Dbo::collection<Wt::Dbo::ptr<TrackListEntry>> _entries;
 };
 
-class TrackListEntry : public Object<TrackListEntry, TrackListEntryId>
+class TrackListEntry final : public Object<TrackListEntry, TrackListEntryId>
 {
 	public:
 		TrackListEntry() = default;

src/libs/services/database/test/TrackList.cpp

@@ -479,3 +479,43 @@ TEST_F(DatabaseFixture, SingleTrackListSingleTrackWithCluster)
 		EXPECT_EQ(trackLists.results.front(), trackList1.getId());
 	}
 }
+
+TEST_F(DatabaseFixture, SingleTrackList_getEntries)
+{
+	ScopedUser user {session, "MyUser"};
+	ScopedTrackList trackList {session, "MyTrackList", TrackListType::Playlist, false, user.lockAndGet()};
+	ScopedTrack track1 {session, "MyTrack"};
+	ScopedTrack track2 {session, "MyTrack"};
+
+	{
+		auto transaction {session.createUniqueTransaction()};
+		session.create<TrackListEntry>(track1.get(), trackList.get());
+	}
+
+	{
+		auto transaction {session.createSharedTransaction()};
+		auto entries {trackList.get()->getEntries()};
+		ASSERT_EQ(entries.size(), 1);
+		EXPECT_EQ(entries.front()->getTrack()->getId(), track1.getId());
+	}
+
+	{
+		auto transaction {session.createUniqueTransaction()};
+		session.create<TrackListEntry>(track2.get(), trackList.get());
+	}
+
+	{
+		auto transaction {session.createSharedTransaction()};
+		auto entries {trackList.get()->getEntries()};
+		ASSERT_EQ(entries.size(), 2);
+		EXPECT_EQ(entries[0]->getTrack()->getId(), track1.getId());
+		EXPECT_EQ(entries[1]->getTrack()->getId(), track2.getId());
+	}
+
+	{
+		auto transaction {session.createSharedTransaction()};
+		auto entries {trackList.get()->getEntries(Range {1, 1})};
+		ASSERT_EQ(entries.size(), 1);
+		EXPECT_EQ(entries[0]->getTrack()->getId(), track2.getId());
+	}
+}

src/lms/ui/LmsApplication.cpp

@@ -506,7 +506,7 @@ R"(function(current) {
 
 	_mediaPlayer->playbackEnded.connect([this]
 	{
-		_playQueue->playNext();
+		_playQueue->onPlaybackEnded();
 	});
 
 	_playQueue->trackSelected.connect([this] (Database::TrackId trackId, bool play, float replayGain)

src/lms/ui/PlayQueue.cpp

@@ -270,6 +270,7 @@ PlayQueue::clearTracks()
 	}
 
 	_entriesContainer->clear();
+	_trackPos.reset();
 	updateInfo();
 }
 
@@ -278,6 +279,7 @@ PlayQueue::stop()
 {
 	updateCurrentTrack(false);
 	_trackPos.reset();
+	_isTrackSelected = false;
 	trackUnselected.emit();
 }
 
@@ -318,6 +320,7 @@ PlayQueue::loadTrack(std::size_t pos, bool play)
 
 	enqueueRadioTracksIfNeeded();
 	updateCurrentTrack(true);
+	_isTrackSelected = true;
 	trackSelected.emit(trackId, play, replayGain ? *replayGain : 0);
 }
 
@@ -345,6 +348,12 @@ PlayQueue::playNext()
 	loadTrack(*_trackPos + 1, true);
 }
 
+void
+PlayQueue::onPlaybackEnded()
+{
+	playNext();
+}
+
 std::size_t
 PlayQueue::getCount()
 {
@@ -401,11 +410,9 @@ PlayQueue::updateCurrentTrack(bool selected)
 	entry->toggleStyleClass("Lms-entry-playing", selected);
 }
 
-std::size_t
+void
 PlayQueue::enqueueTracks(const std::vector<Database::TrackId>& trackIds)
 {
-	std::size_t nbTracksQueued {};
-
 	{
 		auto transaction {LmsApp->getDbSession().createUniqueTransaction()};
 
@@ -415,22 +422,50 @@ PlayQueue::enqueueTracks(const std::vector<Database::TrackId>& trackIds)
 		std::size_t nbTracksToEnqueue {queueSize + trackIds.size() > getCapacity() ? getCapacity() - queueSize : trackIds.size()};
 		for (const Database::TrackId trackId : trackIds)
 		{
+			if (nbTracksToEnqueue == 0)
+				break;
+
 			Database::Track::pointer track {Database::Track::find(LmsApp->getDbSession(), trackId)};
 			if (!track)
 				continue;
 
-			if (nbTracksQueued == nbTracksToEnqueue)
-				break;
-
 			LmsApp->getDbSession().create<Database::TrackListEntry>(track, queue);
-			nbTracksQueued++;
+			nbTracksToEnqueue--;
 		}
 	}
 
 	updateInfo();
 	addSome();
+}
 
-	return nbTracksQueued;
+std::vector<Database::TrackId>
+PlayQueue::getAndClearNextTracks()
+{
+	std::vector<Database::TrackId> tracks;
+
+	auto transaction {LmsApp->getDbSession().createUniqueTransaction()};
+
+	Database::TrackList::pointer queue {getQueue()};
+	std::vector<Database::TrackListEntry::pointer> entries {queue->getEntries(Database::Range {_trackPos ? *_trackPos + 1 : 0, getCapacity()})};
+	tracks.reserve(entries.size());
+	for (Database::TrackListEntry::pointer entry : entries)
+	{
+		tracks.push_back(entry->getTrack()->getId());
+		entry.remove();
+	}
+
+	if (_trackPos)
+	{
+		// entries may have been cleared
+		if (*_trackPos + 1 < _entriesContainer->getCount())
+			_entriesContainer->remove(*_trackPos + 1, _entriesContainer->getCount() - 1);
+	}
+	else
+	{
+		_entriesContainer->clear();
+	}
+
+	return tracks;
 }
 
 void
@@ -439,6 +474,14 @@ PlayQueue::play(const std::vector<Database::TrackId>& trackIds)
 	playAtIndex(trackIds, 0);
 }
 
+void
+PlayQueue::playNext(const std::vector<Database::TrackId>& trackIds)
+{
+	std::vector<Database::TrackId> nextTracks {getAndClearNextTracks()};
+	nextTracks.insert(std::cbegin(nextTracks), std::cbegin(trackIds), std::cend(trackIds));
+	playOrAddLast(nextTracks);
+}
+
 void
 PlayQueue::playShuffled(const std::vector<Database::TrackId>& trackIds)
 {
@@ -453,7 +496,7 @@ void
 PlayQueue::playOrAddLast(const std::vector<Database::TrackId>& trackIds)
 {
 	enqueueTracks(trackIds);
-	if (!_trackPos)
+	if (!_isTrackSelected)
 		loadTrack(0, true);
 }
 
@@ -471,7 +514,7 @@ PlayQueue::addSome()
 	auto transaction {LmsApp->getDbSession().createSharedTransaction()};
 
 	const Database::TrackList::pointer queue {getQueue()};
-	const auto tracklistEntries {queue->getEntries(_entriesContainer->getCount(), _batchSize)};
+	const auto tracklistEntries {queue->getEntries(Database::Range {_entriesContainer->getCount(), _batchSize})};
 	for (const Database::TrackListEntry::pointer& tracklistEntry : tracklistEntries)
 		addEntry(tracklistEntry);
 
@@ -491,7 +534,6 @@ PlayQueue::addEntry(const Database::TrackListEntry::pointer& tracklistEntry)
 	entry->bindString("name", Wt::WString::fromUTF8(track->getName()), Wt::TextFormat::Plain);
 
 	const auto artists {track->getArtistIds({Database::TrackArtistLinkType::Artist})};
-	LMS_LOG(UI, DEBUG) << "Found " << artists.size() << " artists!";
 	if (!artists.empty())
 	{
 		entry->setCondition("if-has-artists", true);
@@ -544,6 +586,8 @@ PlayQueue::addEntry(const Database::TrackListEntry::pointer& tracklistEntry)
 			const std::optional<std::size_t> pos {_entriesContainer->getIndexOf(*entry)};
 			if (pos && *_trackPos >= *pos)
 				(*_trackPos)--;
+			else if (*_trackPos >= _entriesContainer->getCount())
+				_trackPos.reset();
 		}
 
 		_entriesContainer->remove(*entry);

src/lms/ui/PlayQueue.hpp

@@ -50,6 +50,7 @@ class PlayQueue : public Template
 		PlayQueue();
 
 		void play(const std::vector<Database::TrackId>& trackIds);
+		void playNext(const std::vector<Database::TrackId>& trackIds);
 		void playShuffled(const std::vector<Database::TrackId>& trackIds);
 		void playOrAddLast(const std::vector<Database::TrackId>& trackIds); // play if queue empty, otherwise just add last
 		void playAtIndex(const std::vector<Database::TrackId>& trackIds, std::size_t index);
@@ -69,6 +70,8 @@ class PlayQueue : public Template
 		// Signal emitted when track count changed
 		Wt::Signal<std::size_t> trackCountChanged;
 
+		void onPlaybackEnded();
+
 		std::size_t getCapacity() const { return _capacity; }
 		std::size_t getCount();
 
@@ -80,7 +83,8 @@ class PlayQueue : public Template
 		bool isFull() const;
 
 		void clearTracks();
-		std::size_t enqueueTracks(const std::vector<Database::TrackId>& trackIds);
+		void enqueueTracks(const std::vector<Database::TrackId>& trackIds);
+		std::vector<Database::TrackId> getAndClearNextTracks();
 		void addSome();
 		void addEntry(const Database::ObjectPtr<Database::TrackListEntry>& entry);
 		void enqueueRadioTracksIfNeeded();
@@ -110,6 +114,7 @@ class PlayQueue : public Template
 		Wt::WCheckBox* _repeatBtn {};
 		Wt::WCheckBox* _radioBtn {};
 		std::optional<std::size_t> _trackPos;	// current track position, if set
+		bool _isTrackSelected {};
 };
 
 } // namespace UserInterface

src/lms/ui/common/InfiniteScrollingContainer.cpp

@@ -65,6 +65,22 @@ namespace UserInterface
 		_elements->removeWidget(&widget);
 	}
 
+	void
+	InfiniteScrollingContainer::remove(std::size_t first, std::size_t last)
+	{
+		assert(last >= first);
+		assert(last < static_cast<std::size_t>(_elements->count()));
+
+		// remove from end as API is quite uneffective (minimize moves)
+		std::size_t i {last};
+		while (Wt::WWidget* widget {_elements->widget(i)})
+		{
+			_elements->removeWidget(widget);
+			if (i-- == first)
+				break;
+		}
+	}
+
 	Wt::WWidget*
 	InfiniteScrollingContainer::getWidget(std::size_t pos) const
 	{

src/lms/ui/common/InfiniteScrollingContainer.hpp

@@ -46,6 +46,7 @@ namespace UserInterface
 			}
 
 			void remove(Wt::WWidget& widget);
+			void remove(std::size_t first, std::size_t last);
 
 			Wt::WWidget*				getWidget(std::size_t pos) const;
 			std::optional<std::size_t>	getIndexOf(Wt::WWidget& widget) const;

src/lms/ui/explore/ArtistView.cpp

@@ -166,6 +166,11 @@ Artist::refreshView()
 		{
 			_playQueueController.processCommand(PlayQueueController::Command::PlayShuffled, {_artistId});
 		});
+	bindNew<Wt::WPushButton>("play-next", Wt::WString::tr("Lms.Explore.play-next"), Wt::TextFormat::Plain)
+		->clicked().connect([=]
+		{
+			_playQueueController.processCommand(PlayQueueController::Command::PlayNext, {_artistId});
+		});
 	bindNew<Wt::WPushButton>("play-last", Wt::WString::tr("Lms.Explore.play-last"), Wt::TextFormat::Plain)
 		->clicked().connect([=]
 		{

src/lms/ui/explore/PlayQueueController.cpp

@@ -138,6 +138,9 @@ namespace UserInterface
 			case Command::Play:
 				_playQueue.play(trackIds);
 				break;
+			case Command::PlayNext:
+				_playQueue.playNext(trackIds);
+				break;
 			case Command::PlayShuffled:
 				_playQueue.playShuffled(trackIds);
 				break;

src/lms/ui/explore/PlayQueueController.hpp

@@ -40,6 +40,7 @@ namespace UserInterface
 			enum class Command
 			{
 				Play,
+				PlayNext,
 				PlayOrAddLast,
 				PlayShuffled,
 			};

src/lms/ui/explore/ReleaseView.cpp

@@ -290,6 +290,12 @@ Release::refreshView()
 			_playQueueController.processCommand(PlayQueueController::Command::PlayShuffled, {*releaseId});
 		});
 
+	bindNew<Wt::WPushButton>("play-next", Wt::WString::tr("Lms.Explore.play-next"), Wt::TextFormat::Plain)
+		->clicked().connect([=]
+		{
+			_playQueueController.processCommand(PlayQueueController::Command::PlayNext, {*releaseId});
+		});
+
 	bindNew<Wt::WPushButton>("play-last", Wt::WString::tr("Lms.Explore.play-last"), Wt::TextFormat::Plain)
 		->clicked().connect([=]
 		{
@@ -416,6 +422,11 @@ Release::refreshView()
 				{
 					_playQueueController.playTrackInRelease(trackId);
 				});
+			entry->bindNew<Wt::WPushButton>("play-next", Wt::WString::tr("Lms.Explore.play-next"))
+				->clicked().connect([=]
+				{
+					_playQueueController.processCommand(PlayQueueController::Command::PlayNext, {trackId});
+				});
 			entry->bindNew<Wt::WPushButton>("play-last", Wt::WString::tr("Lms.Explore.play-last"))
 				->clicked().connect([=]
 				{

src/lms/ui/explore/ReleasesView.cpp

@@ -79,6 +79,11 @@ Releases::Releases(Filters& filters, PlayQueueController& playQueueController)
 		{
 			_playQueueController.processCommand(PlayQueueController::Command::PlayShuffled, getAllReleases());
 		});
+	bindNew<Wt::WPushButton>("play-next", Wt::WString::tr("Lms.Explore.play-next"), Wt::TextFormat::Plain)
+		->clicked().connect([=]
+		{
+			_playQueueController.processCommand(PlayQueueController::Command::PlayNext, getAllReleases());
+		});
 	bindNew<Wt::WPushButton>("play-last", Wt::WString::tr("Lms.Explore.play-last"), Wt::TextFormat::Plain)
 		->clicked().connect([=]
 		{

src/lms/ui/explore/TrackListHelpers.cpp

@@ -205,6 +205,11 @@ namespace UserInterface::TrackListHelpers
 		{
 			playQueueController.processCommand(PlayQueueController::Command::Play, {trackId});
 		});
+		entry->bindNew<Wt::WPushButton>("play-next", Wt::WString::tr("Lms.Explore.play-next"))
+			->clicked().connect([=, &playQueueController]
+			{
+				playQueueController.processCommand(PlayQueueController::Command::PlayNext, {trackId});
+			});
 		entry->bindNew<Wt::WPushButton>("play-last", Wt::WString::tr("Lms.Explore.play-last"))
 			->clicked().connect([=, &playQueueController]
 			{

src/lms/ui/explore/TracksView.cpp

@@ -80,6 +80,11 @@ Tracks::Tracks(Filters& filters, PlayQueueController& playQueueController)
 		{
 			_playQueueController.processCommand(PlayQueueController::Command::PlayShuffled, getAllTracks());
 		});
+	bindNew<Wt::WPushButton>("play-next", Wt::WString::tr("Lms.Explore.play-next"), Wt::TextFormat::Plain)
+		->clicked().connect([=]
+		{
+			_playQueueController.processCommand(PlayQueueController::Command::PlayNext, getAllTracks());
+		});
 	bindNew<Wt::WPushButton>("play-last", Wt::WString::tr("Lms.Explore.play-last"), Wt::TextFormat::Plain)
 		->clicked().connect([=]
 		{