/Labs/Microsoft.Activities.Extensions/Microsoft.Activities.Extensions.Tests/StateTrackerObserver.cs

namespace Microsoft.Activities.Extensions.Tests

{

    //using System;

    //using System.Collections.ObjectModel;

    //using System.ComponentModel;

    //using System.Diagnostics.Contracts;



    //using Microsoft.Activities.Extensions.Tracking;

    //using Microsoft.Activities.Extensions.Windows;



    ///// <summary>

    ///// Observes change notifications from a StateTracker

    ///// </summary>

    //public class StateTrackerObserver

    //{

    //    #region Fields



    //    /// <summary>

    //    /// The property changed notifications

    //    /// </summary>

    //    private readonly Collection<PropertyChangedEventArgs> propertyChangedArgs =

    //        new Collection<PropertyChangedEventArgs>();



    //    #endregion



    //    #region Constructors and Destructors



    //    /// <summary>

    //    /// Initializes a new instance

    //    /// </summary>

    //    /// <param name="tracker">The tracker</param>

    //    public StateTrackerObserver(ObservableStateTracker tracker)

    //    {

    //        Contract.Requires(tracker != null);

    //        if (tracker == null)

    //        {

    //            throw new ArgumentNullException("tracker");

    //        }



    //        tracker.PropertyChanged += (sender, args) => this.propertyChangedArgs.Add(args);

    //    }



    //    #endregion



    //    #region Public Properties



    //    /// <summary>

    //    /// Gets the PropertyChangedArgs

    //    /// </summary>

    //    public ReadOnlyCollection<PropertyChangedEventArgs> PropertyChangedArgs

    //    {

    //        get

    //        {

    //            return new ReadOnlyCollection<PropertyChangedEventArgs>(this.propertyChangedArgs);

    //        }

    //    }



    //    #endregion



    //    /// <summary>

    //    /// Outputs a trace of the observer

    //    /// </summary>

    //    public void Trace()

    //    {

    //        var tsb = new TraceStringBuilder() { Options = TraceOptions.ShowCollectionCount };

    //        tsb.AppendLine(this.GetType().FullName);

    //        tsb.AppendCollection("PropertyChangedArgs", this.PropertyChangedArgs, (args, i) => args.PropertyName);

    //        WorkflowTrace.Information(tsb.ToString());

    //    }

    //}

}