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// --------------------------------------------------------------------------------------------------------------------
// <copyright file="CountdownAlertViewModel.cs" company="HandBrake Project (http://handbrake.fr)">
// This file is part of the HandBrake source code - It may be used under the terms of the GNU General Public License.
// </copyright>
// <summary>
// The Countdown Alert View Model
// </summary>
// --------------------------------------------------------------------------------------------------------------------
namespace HandBrakeWPF.ViewModels
{
using System;
using System.Windows.Forms.VisualStyles;
using System.Windows.Threading;
using HandBrakeWPF.ViewModels.Interfaces;
/// <summary>
/// The Countdown Alert View Model
/// </summary>
public class CountdownAlertViewModel : ViewModelBase, ICountdownAlertViewModel
{
#region Private Fields
/// <summary>
/// The countdown time.
/// </summary>
private const int CountdownTime = 60;
/// <summary>
/// The action.
/// </summary>
private string action;
/// <summary>
/// The timer.
/// </summary>
private DispatcherTimer timer;
#endregion
#region Constructors and Destructors
/// <summary>
/// Initializes a new instance of the <see cref="CountdownAlertViewModel"/> class.
/// </summary>
public CountdownAlertViewModel()
{
this.IsCancelled = false;
Caliburn.Micro.Execute.OnUIThread(
() =>
{
timer = new DispatcherTimer { Interval = TimeSpan.FromSeconds(1) };
timer.Tick += this.timer_Tick;
timer.Start();
});
}
#endregion
#region Public Properties
/// <summary>
/// Gets or sets a value indicating whether is cancelled.
/// </summary>
public bool IsCancelled { get; set; }
/// <summary>
/// Gets the notice message.
/// </summary>
public string NoticeMessage
{
get
{
return string.Format("The following action '{0}' will occur in {1} seconds.", action, CountdownTime - this.Ticks);
}
}
/// <summary>
/// Gets or sets the ticks.
/// </summary>
public int Ticks { get; set; }
#endregion
#region Public Methods and Operators
/// <summary>
/// The cancel.
/// </summary>
public void Cancel()
{
this.IsCancelled = true;
timer.Stop();
this.Ticks = 0;
this.TryClose();
}
/// <summary>
/// The proceed.
/// </summary>
public void Proceed()
{
this.IsCancelled = false;
timer.Stop();
this.Ticks = 0;
this.TryClose();
}
/// <summary>
/// The set action.
/// </summary>
/// <param name="actionMsg">
/// The action.
/// </param>
public void SetAction(string actionMsg)
{
this.Ticks = 0;
timer.Start();
this.action = actionMsg;
}
#endregion
#region Methods
/// <summary>
/// The timer_ tick.
/// </summary>
/// <param name="sender">
/// The sender.
/// </param>
/// <param name="e">
/// The e.
/// </param>
private void timer_Tick(object sender, EventArgs e)
{
this.Ticks = this.Ticks + 1;
this.NotifyOfPropertyChange(() => this.NoticeMessage);
if (this.Ticks > CountdownTime)
{
timer.Stop();
this.Ticks = 0;
this.TryClose();
}
}
#endregion
}
}
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