Clean track lists view when removing a track list

src/lms/ui/explore/Explore.cpp

@@ -52,8 +52,8 @@ handleContentsPathChange(Wt::WStackedWidget* stack)
 	{
 		IdxArtists = 0,
 		IdxArtist,
-		IdxTracklists,
-		IdxTracklist,
+		IdxTrackLists,
+		IdxTrackList,
 		IdxReleases,
 		IdxRelease,
 		IdxSearch,
@@ -64,8 +64,8 @@ handleContentsPathChange(Wt::WStackedWidget* stack)
 	{
 		{ "/artists",		IdxArtists },
 		{ "/artist",		IdxArtist },
-		{ "/tracklists",	IdxTracklists },
-		{ "/tracklist",		IdxTracklist },
+		{ "/tracklists",	IdxTrackLists },
+		{ "/tracklist",		IdxTrackList },
 		{ "/releases",		IdxReleases },
 		{ "/release",		IdxRelease },
 		{ "/search",		IdxSearch },
@@ -103,14 +103,18 @@ Explore::Explore(Filters* filters)
 	artist->tracksAction.connect(this, &Explore::handleTracksAction);
 	contentsStack->addWidget(std::move(artist));
 
-	auto tracklists {std::make_unique<TrackLists>(*_filters)};
-	tracklists->trackListAction.connect(this, &Explore::handleTrackListAction);
-	contentsStack->addWidget(std::move(tracklists));
+	auto trackLists {std::make_unique<TrackLists>(*_filters)};
+	TrackLists* trackListsPtr {trackLists.get()};
+	trackLists->trackListAction.connect(this, &Explore::handleTrackListAction);
+	contentsStack->addWidget(std::move(trackLists));
 
-	auto tracklist {std::make_unique<TrackList>(*_filters)};
-	tracklist->trackListAction.connect(this, &Explore::handleTrackListAction);
-	tracklist->tracksAction.connect(this, &Explore::handleTracksAction);
-	contentsStack->addWidget(std::move(tracklist));
+	auto trackList {std::make_unique<TrackList>(*_filters)};
+	TrackList* trackListPtr {trackList.get()};
+	trackList->trackListAction.connect(this, &Explore::handleTrackListAction);
+	trackList->tracksAction.connect(this, &Explore::handleTracksAction);
+	contentsStack->addWidget(std::move(trackList));
+
+	trackListPtr->trackListDeleted.connect(trackListsPtr, &TrackLists::onTrackListDeleted);
 
 	auto releases = std::make_unique<Releases>(*_filters);
 	releases->releasesAction.connect(this, &Explore::handleReleasesAction);

src/lms/ui/explore/TrackListView.cpp

@@ -133,6 +133,7 @@ namespace UserInterface
 					}
 
 					clear();
+					trackListDeleted.emit(*trackListId);
 					LmsApp->setInternalPath("/tracklists", true);
 
 					LmsApp->getModalManager().dispose(modalPtr);

src/lms/ui/explore/TrackListView.hpp

@@ -38,6 +38,8 @@ namespace UserInterface
 			PlayQueueActionTrackListSignal trackListAction;
 			PlayQueueActionTrackSignal tracksAction;
 
+			Wt::Signal<Database::TrackListId> trackListDeleted;
+
 		private:
 			void refreshView();
 			void addSome();

src/lms/ui/explore/TrackListsView.cpp

@@ -78,10 +78,23 @@ namespace UserInterface
 		refreshView();
 	}
 
+	void
+	TrackLists::onTrackListDeleted(Database::TrackListId trackListId)
+	{
+		auto itTrackList {_trackListWidgets.find(trackListId)};
+		if (itTrackList == std::end(_trackListWidgets))
+			return;
+
+		_container->remove(*itTrackList->second);
+		_trackListWidgets.erase(itTrackList);
+
+	}
+
 	void
 	TrackLists::refreshView()
 	{
 		_container->clear();
+		_trackListWidgets.clear();
 		addSome();
 	}
 
@@ -125,6 +138,9 @@ namespace UserInterface
 
 		WTemplate* entry {_container->addNew<Template>(Wt::WString::tr("Lms.Explore.TrackLists.template.entry"))};
 		entry->bindWidget("name", LmsApplication::createTrackListAnchor(trackList));
+
+		assert(_trackListWidgets.find(trackListId) == std::cend(_trackListWidgets));
+		_trackListWidgets.emplace(trackListId, entry);
 	}
 
 } // namespace UserInterface

src/lms/ui/explore/TrackListsView.hpp

@@ -19,9 +19,11 @@
 
 #pragma once
 
+#include <unordered_map>
 #include <Wt/WTemplate.h>
 
 #include "services/database/Object.hpp"
+#include "services/database/TrackListId.hpp"
 #include "services/database/Types.hpp"
 
 #include "common/Template.hpp"
@@ -44,6 +46,8 @@ namespace UserInterface
 
 			PlayQueueActionTrackListSignal trackListAction;
 
+			void onTrackListDeleted(Database::TrackListId trackListId);
+
 		private:
 			enum class Mode
 			{
@@ -62,6 +66,7 @@ namespace UserInterface
 			Filters&					_filters;
 			Wt::WWidget*				_currentActiveItem {};
 			InfiniteScrollingContainer* _container {};
+			std::unordered_map<Database::TrackListId, Wt::WWidget*> _trackListWidgets;
 	};
 } // namespace UserInterface