Add GPL modules

MediaBrowser.Controller/Entities/UserRootFolder.cs

@@ -0,0 +1,158 @@
+using MediaBrowser.Model.Serialization;
+using MediaBrowser.Controller.Providers;
+using MediaBrowser.Model.Library;
+using MediaBrowser.Model.Querying;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading;
+using System.Threading.Tasks;
+
+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();
+            }
+        }
+
+        [IgnoreDataMember]
+        public override bool SupportsInheritedParentImages
+        {
+            get
+            {
+                return false;
+            }
+        }
+
+        [IgnoreDataMember]
+        public override bool SupportsPlayedStatus
+        {
+            get
+            {
+                return 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
+            });
+
+            var itemsArray = result;
+            var totalCount = itemsArray.Length;
+
+            return new QueryResult<BaseItem>
+            {
+                TotalRecordCount = totalCount,
+                Items = itemsArray
+            };
+        }
+
+        public override int GetChildCount(User user)
+        {
+            return GetChildren(user, true).Count;
+        }
+
+        [IgnoreDataMember]
+        protected override bool SupportsShortcutChildren
+        {
+            get
+            {
+                return true;
+            }
+        }
+
+        [IgnoreDataMember]
+        public override bool IsPreSorted
+        {
+            get
+            {
+                return 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);
+            }
+        }
+    }
+}