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//
// Copyright (c) Microsoft Corporation. All rights reserved.
// Licensed under the MIT License. See License.txt in the project root for license information.
//
// This file contain implementations details that are subject to change without notice.
// Use at your own risk.
//
using System;
namespace Microsoft.VisualStudio.Text.Operations.Standalone
{
/// <summary>
/// This class is to make it easy to catch new undo/redo operations while a delegated primitive
/// is in progress--it is called from DelegatedUndoPrimitive.Undo and .Redo with the IDispose
/// using pattern to set up the history to send operations our way.
/// </summary>
internal class CatchOperationsFromHistoryForDelegatedPrimitive : IDisposable
{
UndoHistoryImpl history;
DelegatedUndoPrimitiveImpl primitive;
public CatchOperationsFromHistoryForDelegatedPrimitive(UndoHistoryImpl history, DelegatedUndoPrimitiveImpl primitive, DelegatedUndoPrimitiveState state)
{
this.history = history;
this.primitive = primitive;
primitive.State = state;
history.ForwardToUndoOperation(primitive);
}
#pragma warning disable CA1063 // Implement IDisposable Correctly
public void Dispose()
#pragma warning restore CA1063 // Implement IDisposable Correctly
{
history.EndForwardToUndoOperation(primitive);
primitive.State = DelegatedUndoPrimitiveState.Inactive;
GC.SuppressFinalize(this);
}
}
}
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