//---------------------------------------------------------------------------
//
// <copyright file="UserInitiatedRoutedEventPermissionAttribute.cs" company="Microsoft">
//    Copyright (C) Microsoft Corporation.  All rights reserved.
// </copyright>
//
//---------------------------------------------------------------------------
 
using System;
using System.Security;
using System.Security.Permissions;
using System.Windows;
using MS.Internal.Permissions;
 
namespace MS.Internal.Permissions
{
    // This permission attribute was defined in WindowsBase since it must be defined in
    // a seperate assembly from where it is used (PresentationCore). The reason for this is explained
    // in the following connect article.  The MSDN documentation has yet to be updated:
    // https://connect.microsoft.com/VisualStudio/feedback/ViewFeedback.aspx?FeedbackID=297627
    [Serializable]
    [AttributeUsage(AttributeTargets.Method)]
    sealed internal class UserInitiatedRoutedEventPermissionAttribute : CodeAccessSecurityAttribute
    {
        private static UserInitiatedRoutedEventPermission _perm;
 
        public UserInitiatedRoutedEventPermissionAttribute(SecurityAction action): base(action)
        {
        }
 
        public override IPermission CreatePermission()
        {
            if (_perm == null)
            {
                _perm = new UserInitiatedRoutedEventPermission();
            }
 
            return _perm;
        }
    }
}