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using System.Windows;
using MediaBrowser.Controller.Entities;
using MediaBrowser.Controller.Library;
using MediaBrowser.Controller.Plugins;
using MediaBrowser.Model.Logging;
using MediaBrowser.ServerApplication.Controls;
using System.Collections.Generic;
using System.Linq;
using System.Threading;
using System.Windows.Controls.Primitives;
namespace MediaBrowser.ServerApplication
{
/// <summary>
/// Class NewItemNotifier
/// </summary>
public class NewItemNotifier : IServerEntryPoint
{
/// <summary>
/// Holds the list of new items to display when the NewItemTimer expires
/// </summary>
private readonly List<BaseItem> _newlyAddedItems = new List<BaseItem>();
/// <summary>
/// The amount of time to wait before showing a new item notification
/// This allows us to group items together into one notification
/// </summary>
private const int NewItemDelay = 60000;
/// <summary>
/// The current new item timer
/// </summary>
/// <value>The new item timer.</value>
private Timer NewItemTimer { get; set; }
/// <summary>
/// The _library manager
/// </summary>
private readonly ILibraryManager _libraryManager;
/// <summary>
/// The _logger
/// </summary>
private readonly ILogger _logger;
/// <summary>
/// Initializes a new instance of the <see cref="NewItemNotifier" /> class.
/// </summary>
/// <param name="libraryManager">The library manager.</param>
/// <param name="logManager">The log manager.</param>
public NewItemNotifier(ILibraryManager libraryManager, ILogManager logManager)
{
_logger = logManager.GetLogger("NewItemNotifier");
_libraryManager = libraryManager;
}
/// <summary>
/// Runs this instance.
/// </summary>
public void Run()
{
_libraryManager.LibraryChanged += libraryManager_LibraryChanged;
}
/// <summary>
/// Handles the LibraryChanged event of the libraryManager control.
/// </summary>
/// <param name="sender">The source of the event.</param>
/// <param name="e">The <see cref="ChildrenChangedEventArgs" /> instance containing the event data.</param>
void libraryManager_LibraryChanged(object sender, ChildrenChangedEventArgs e)
{
var newItems = e.ItemsAdded.Where(i => !i.IsFolder).ToList();
// Use a timer to prevent lots of these notifications from showing in a short period of time
if (newItems.Count > 0)
{
lock (_newlyAddedItems)
{
_newlyAddedItems.AddRange(newItems);
if (NewItemTimer == null)
{
NewItemTimer = new Timer(NewItemTimerCallback, null, NewItemDelay, Timeout.Infinite);
}
else
{
NewItemTimer.Change(NewItemDelay, Timeout.Infinite);
}
}
}
}
/// <summary>
/// Called when the new item timer expires
/// </summary>
/// <param name="state">The state.</param>
private void NewItemTimerCallback(object state)
{
List<BaseItem> newItems;
// Lock the list and release all resources
lock (_newlyAddedItems)
{
newItems = _newlyAddedItems.ToList();
_newlyAddedItems.Clear();
NewItemTimer.Dispose();
NewItemTimer = null;
}
// Show the notification
if (newItems.Count == 1)
{
Application.Current.Dispatcher.InvokeAsync(() =>
{
var window = (MainWindow)Application.Current.MainWindow;
window.Dispatcher.InvokeAsync(() => window.MbTaskbarIcon.ShowCustomBalloon(new ItemUpdateNotification(_logger)
{
DataContext = newItems[0]
}, PopupAnimation.Slide, 6000));
});
}
else if (newItems.Count > 1)
{
Application.Current.Dispatcher.InvokeAsync(() =>
{
var window = (MainWindow)Application.Current.MainWindow;
window.Dispatcher.InvokeAsync(() => window.MbTaskbarIcon.ShowCustomBalloon(new MultiItemUpdateNotification(_logger)
{
DataContext = newItems
}, PopupAnimation.Slide, 6000));
});
}
}
/// <summary>
/// Performs application-defined tasks associated with freeing, releasing, or resetting unmanaged resources.
/// </summary>
public void Dispose()
{
_libraryManager.LibraryChanged -= libraryManager_LibraryChanged;
}
}
}
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