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137 lines
4.3 KiB
C#
137 lines
4.3 KiB
C#
using System.Collections.Concurrent;
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using MediaBrowser.Controller.Entities;
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using System;
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using System.Collections.Generic;
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namespace MediaBrowser.Controller.Library
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{
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/// <summary>
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/// Class ChildrenChangedEventArgs
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/// </summary>
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public class ChildrenChangedEventArgs : EventArgs
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{
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/// <summary>
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/// Gets or sets the folder.
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/// </summary>
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/// <value>The folder.</value>
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public Folder Folder { get; set; }
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/// <summary>
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/// Gets or sets the items added.
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/// </summary>
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/// <value>The items added.</value>
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public ConcurrentBag<BaseItem> ItemsAdded { get; set; }
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/// <summary>
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/// Gets or sets the items removed.
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/// </summary>
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/// <value>The items removed.</value>
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public List<BaseItem> ItemsRemoved { get; set; }
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/// <summary>
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/// Gets or sets the items updated.
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/// </summary>
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/// <value>The items updated.</value>
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public ConcurrentBag<BaseItem> ItemsUpdated { get; set; }
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/// <summary>
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/// Create the args and set the folder property
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/// </summary>
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/// <param name="folder">The folder.</param>
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/// <exception cref="System.ArgumentNullException"></exception>
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public ChildrenChangedEventArgs(Folder folder)
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{
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if (folder == null)
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{
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throw new ArgumentNullException();
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}
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//init the folder property
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Folder = folder;
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//init the list
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ItemsAdded = new ConcurrentBag<BaseItem>();
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ItemsRemoved = new List<BaseItem>();
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ItemsUpdated = new ConcurrentBag<BaseItem>();
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}
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/// <summary>
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/// Adds the new item.
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/// </summary>
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/// <param name="item">The item.</param>
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/// <exception cref="System.ArgumentNullException"></exception>
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public void AddNewItem(BaseItem item)
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{
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if (item == null)
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{
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throw new ArgumentNullException();
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}
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ItemsAdded.Add(item);
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}
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/// <summary>
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/// Adds the updated item.
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/// </summary>
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/// <param name="item">The item.</param>
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/// <exception cref="System.ArgumentNullException"></exception>
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public void AddUpdatedItem(BaseItem item)
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{
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if (item == null)
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{
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throw new ArgumentNullException();
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}
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ItemsUpdated.Add(item);
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}
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/// <summary>
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/// Adds the removed item.
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/// </summary>
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/// <param name="item">The item.</param>
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/// <exception cref="System.ArgumentNullException"></exception>
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public void AddRemovedItem(BaseItem item)
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{
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if (item == null)
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{
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throw new ArgumentNullException();
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}
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ItemsRemoved.Add(item);
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}
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/// <summary>
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/// Lists the has change.
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/// </summary>
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/// <param name="list">The list.</param>
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/// <returns><c>true</c> if XXXX, <c>false</c> otherwise</returns>
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private bool ListHasChange(List<BaseItem> list)
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{
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return list != null && list.Count > 0;
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}
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/// <summary>
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/// Lists the has change.
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/// </summary>
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/// <param name="list">The list.</param>
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/// <returns><c>true</c> if XXXX, <c>false</c> otherwise</returns>
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private bool ListHasChange(ConcurrentBag<BaseItem> list)
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{
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return list != null && !list.IsEmpty;
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}
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/// <summary>
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/// Gets a value indicating whether this instance has change.
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/// </summary>
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/// <value><c>true</c> if this instance has change; otherwise, <c>false</c>.</value>
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public bool HasChange
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{
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get { return HasAddOrRemoveChange || ListHasChange(ItemsUpdated); }
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}
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/// <summary>
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/// Gets a value indicating whether this instance has add or remove change.
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/// </summary>
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/// <value><c>true</c> if this instance has add or remove change; otherwise, <c>false</c>.</value>
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public bool HasAddOrRemoveChange
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{
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get { return ListHasChange(ItemsAdded) || ListHasChange(ItemsRemoved); }
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}
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}
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}
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