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// --------------------------------------------------------------------------------------------------------------------
// <copyright file="ViewModelBase.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>
// A Base Class for the View Models which contains reusable code.
// </summary>
// --------------------------------------------------------------------------------------------------------------------
namespace HandBrakeWPF.ViewModels
{
using Caliburn.Micro;
using HandBrakeWPF.ViewModels.Interfaces;
/// <summary>
/// A Base Class for the View Models which contains reusable code.
/// </summary>
public class ViewModelBase : Screen, IViewModelBase
{
#region Constants and Fields
/// <summary>
/// Backing Field to prevent the Load method being called more than once.
/// </summary>
private bool hasLoaded;
/// <summary>
/// The title.
/// </summary>
private string title;
#endregion
#region Constructors and Destructors
/// <summary>
/// Initializes a new instance of the <see cref="ViewModelBase"/> class.
/// </summary>
/// <param name="windowManager">
/// The window manager.
/// </param>
public ViewModelBase(IWindowManager windowManager)
{
this.WindowManager = windowManager;
}
#endregion
#region Properties
/// <summary>
/// Gets or sets Details.
/// </summary>
public string Title
{
get
{
return this.title;
}
set
{
this.title = value;
this.NotifyOfPropertyChange("Title");
}
}
/// <summary>
/// Gets WindowManager.
/// </summary>
public IWindowManager WindowManager { get; private set; }
#endregion
#region Public Methods
/// <summary>
/// Perform any Initialisation for this ViewModelBase.
/// </summary>
public void Load()
{
if (!this.hasLoaded)
{
this.hasLoaded = true;
// Initialise the ViewModels OnLoad method if it exists.
this.OnLoad();
}
}
/// <summary>
/// Load Method for the ViewModel
/// </summary>
public virtual void OnLoad()
{
// Impliment in the ViewModel to perform viewmodel specific code.
}
#endregion
}
}
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