Using AvalonEdit (WPF Text Editor)

// Copyright (c) AlphaSierraPapa for the SharpDevelop Team (for details please see \doc\copyright.txt)
// This code is distributed under the GNU LGPL (for details please see \doc\license.txt)

using System;

namespace ICSharpCode.AvalonEdit.Snippets
{
	/// <summary>
	/// Provides information about the event that occured during use of snippets.
	/// </summary>
	public class SnippetEventArgs : EventArgs
	{
		/// <summary>
		/// Gets the reason for deactivation.
		/// </summary>
		public DeactivateReason Reason { get; private set; }
		
		/// <summary>
		/// Creates a new SnippetEventArgs object, with a DeactivateReason.
		/// </summary>
		public SnippetEventArgs(DeactivateReason reason)
		{
			this.Reason = reason;
		}
	}
	
	/// <summary>
	/// Describes the reason for deactivation of a <see cref="SnippetElement" />.
	/// </summary>
	public enum DeactivateReason
	{
		/// <summary>
		/// Unknown reason.
		/// </summary>
		Unknown,
		/// <summary>
		/// Snippet was deleted.
		/// </summary>
		Deleted,
		/// <summary>
		/// There are no active elements in the snippet.
		/// </summary>
		NoActiveElements,
		/// <summary>
		/// The SnippetInputHandler was detached.
		/// </summary>
		InputHandlerDetached,
		/// <summary>
		/// Return was pressed by the user.
		/// </summary>
		ReturnPressed,
		/// <summary>
		/// Escape was pressed by the user.
		/// </summary>
		EscapePressed
	}
}