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79 lines
2.3 KiB
C#
79 lines
2.3 KiB
C#
using System;
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using System.Collections.Concurrent;
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using System.Collections.Generic;
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using System.Linq;
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namespace MediaBrowser.Controller.Entities
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{
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/// <summary>
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/// Specialized folder that can have items added to it's children by external entities.
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/// Used for our RootFolder so plug-ins can add items.
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/// </summary>
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public class AggregateFolder : Folder
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{
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/// <summary>
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/// We don't support manual shortcuts
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/// </summary>
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protected override bool SupportsShortcutChildren
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{
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get
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{
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return false;
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}
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}
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/// <summary>
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/// The _virtual children
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/// </summary>
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private readonly ConcurrentBag<BaseItem> _virtualChildren = new ConcurrentBag<BaseItem>();
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/// <summary>
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/// Gets the virtual children.
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/// </summary>
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/// <value>The virtual children.</value>
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public ConcurrentBag<BaseItem> VirtualChildren
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{
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get { return _virtualChildren; }
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}
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/// <summary>
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/// Adds the virtual child.
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/// </summary>
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/// <param name="child">The child.</param>
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/// <exception cref="System.ArgumentNullException"></exception>
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public void AddVirtualChild(BaseItem child)
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{
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if (child == null)
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{
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throw new ArgumentNullException();
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}
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_virtualChildren.Add(child);
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}
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/// <summary>
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/// Get the children of this folder from the actual file system
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/// </summary>
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/// <returns>IEnumerable{BaseItem}.</returns>
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protected override IEnumerable<BaseItem> GetNonCachedChildren()
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{
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return base.GetNonCachedChildren().Concat(_virtualChildren);
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}
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/// <summary>
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/// Finds the virtual child.
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/// </summary>
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/// <param name="id">The id.</param>
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/// <returns>BaseItem.</returns>
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/// <exception cref="System.ArgumentNullException">id</exception>
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public BaseItem FindVirtualChild(Guid id)
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{
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if (id == Guid.Empty)
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{
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throw new ArgumentNullException("id");
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}
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return _virtualChildren.FirstOrDefault(i => i.Id == id);
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}
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}
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}
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