using System;

namespace Terminal.Gui {

	public partial class Wizard {
		/// <summary>
		/// <see cref="EventArgs"/> for <see cref="WizardStep"/> events.
		/// </summary>
		public class StepChangeEventArgs : EventArgs {
			/// <summary>
			/// The current (or previous) <see cref="WizardStep"/>.
			/// </summary>
			public WizardStep OldStep { get; }

			/// <summary>
			/// The <see cref="WizardStep"/> the <see cref="Wizard"/> is changing to or has changed to.
			/// </summary>
			public WizardStep NewStep { get; }

			/// <summary>
			/// Event handlers can set to true before returning to cancel the step transition.
			/// </summary>
			public bool Cancel { get; set; }

			/// <summary>
			/// Initializes a new instance of <see cref="StepChangeEventArgs"/>
			/// </summary>
			/// <param name="oldStep">The current <see cref="WizardStep"/>.</param>
			/// <param name="newStep">The new <see cref="WizardStep"/>.</param>
			public StepChangeEventArgs (WizardStep oldStep, WizardStep newStep)
			{
				OldStep = oldStep;
				NewStep = newStep;
				Cancel = false;
			}
		}
	}
}