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#pragma warning disable CS1591
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text.Json.Serialization;
using System.Threading;
using System.Threading.Tasks;
using Jellyfin.Data.Entities;
using MediaBrowser.Controller.Providers;
using MediaBrowser.Model.Library;
using MediaBrowser.Model.Querying;
namespace MediaBrowser.Controller.Entities
{
/// <summary>
/// Special class used for User Roots. Children contain actual ones defined for this user
/// PLUS the virtual folders from the physical root (added by plug-ins).
/// </summary>
public class UserRootFolder : Folder
{
private List<Guid> _childrenIds = null;
private readonly object _childIdsLock = new object();
protected override List<BaseItem> LoadChildren()
{
lock (_childIdsLock)
{
if (_childrenIds == null)
{
var list = base.LoadChildren();
_childrenIds = list.Select(i => i.Id).ToList();
return list;
}
return _childrenIds.Select(LibraryManager.GetItemById).Where(i => i != null).ToList();
}
}
[JsonIgnore]
public override bool SupportsInheritedParentImages => false;
[JsonIgnore]
public override bool SupportsPlayedStatus => false;
private void ClearCache()
{
lock (_childIdsLock)
{
_childrenIds = null;
}
}
protected override QueryResult<BaseItem> GetItemsInternal(InternalItemsQuery query)
{
if (query.Recursive)
{
return QueryRecursive(query);
}
var result = UserViewManager.GetUserViews(new UserViewQuery
{
UserId = query.User.Id,
PresetViews = query.PresetViews
});
return UserViewBuilder.SortAndPage(result, null, query, LibraryManager, true);
}
public override int GetChildCount(User user)
{
return GetChildren(user, true).Count;
}
[JsonIgnore]
protected override bool SupportsShortcutChildren => true;
[JsonIgnore]
public override bool IsPreSorted => true;
protected override IEnumerable<BaseItem> GetEligibleChildrenForRecursiveChildren(User user)
{
var list = base.GetEligibleChildrenForRecursiveChildren(user).ToList();
list.AddRange(LibraryManager.RootFolder.VirtualChildren);
return list;
}
public override bool BeforeMetadataRefresh(bool replaceAllMetdata)
{
ClearCache();
var hasChanges = base.BeforeMetadataRefresh(replaceAllMetdata);
if (string.Equals("default", Name, StringComparison.OrdinalIgnoreCase))
{
Name = "Media Folders";
hasChanges = true;
}
return hasChanges;
}
protected override IEnumerable<BaseItem> GetNonCachedChildren(IDirectoryService directoryService)
{
ClearCache();
return base.GetNonCachedChildren(directoryService);
}
protected override async Task ValidateChildrenInternal(IProgress<double> progress, CancellationToken cancellationToken, bool recursive, bool refreshChildMetadata, MetadataRefreshOptions refreshOptions, IDirectoryService directoryService)
{
ClearCache();
await base.ValidateChildrenInternal(progress, cancellationToken, recursive, refreshChildMetadata, refreshOptions, directoryService)
.ConfigureAwait(false);
ClearCache();
// Not the best way to handle this, but it solves an issue
// CollectionFolders aren't always getting saved after changes
// This means that grabbing the item by Id may end up returning the old one
// Fix is in two places - make sure the folder gets saved
// And here to remedy it for affected users.
// In theory this can be removed eventually.
foreach (var item in Children)
{
LibraryManager.RegisterItem(item);
}
}
}
}
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