using Microsoft.Phone.Shell;

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Linq;

using System.Text;

using System.Threading;

using System.Threading.Tasks;

using System.Windows.Threading;

namespace DropNet2Sample.ViewModels

{

public class BaseViewModel : INotifyPropertyChanged

{

private ProgressIndicator _prog;

private Dispatcher _dispatcher;

public BaseViewModel(ProgressIndicator prog, Dispatcher dispatcher)

{

_prog = prog;

_dispatcher = dispatcher;

}

public event PropertyChangedEventHandler PropertyChanged;

protected void NotifyPropertyChanged(String propertyName)

{

if (PropertyChanged != null)

{

_dispatcher.BeginInvoke(() =>

{

try

{

PropertyChanged(this, new PropertyChangedEventArgs(propertyName));

}

catch { }

});

}

}

public void SetStatus(string message, bool isProgress, int? clearAfterMilliSeconds = null)

{

if (_prog == null) return;

_dispatcher.BeginInvoke(() =>

{

_prog.IsIndeterminate = isProgress;

_prog.IsVisible = true;

_prog.Text = message;

});

if (clearAfterMilliSeconds.HasValue)

{

ThreadPool.QueueUserWorkItem(delegate

{

Thread.Sleep(clearAfterMilliSeconds.Value);

ClearStatus();

});

}

}

public void ClearStatus()

{

if (_prog == null) return;

_dispatcher.BeginInvoke(() =>

{

_prog.IsIndeterminate = false;

_prog.IsVisible = false;

_prog.Text = string.Empty;

});

}

}

}