DiffClassifierProvider.cs

//***************************************************************************
//
//    Copyright (c) Microsoft Corporation. All rights reserved.
//    This code is licensed under the Visual Studio SDK license terms.
//    THIS CODE IS PROVIDED *AS IS* WITHOUT WARRANTY OF
//    ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING ANY
//    IMPLIED WARRANTIES OF FITNESS FOR A PARTICULAR
//    PURPOSE, MERCHANTABILITY, OR NON-INFRINGEMENT.
//
//***************************************************************************

// Copyright (c) Microsoft Corporation
// All rights reserved

namespace DiffClassifier
{
    using System.ComponentModel.Composition;
    using Microsoft.VisualStudio.Text;
    using Microsoft.VisualStudio.Text.Classification;
    using Microsoft.VisualStudio.Utilities;

    [Export(typeof(IClassifierProvider))]
    [ContentType("diff")]
    internal class DiffClassifierProvider : IClassifierProvider
    {
        [Import]
        internal IClassificationTypeRegistryService ClassificationRegistry = null;

        static DiffClassifier diffClassifier;

        public IClassifier GetClassifier(ITextBuffer buffer)
        {
            if (diffClassifier == null)
                diffClassifier = new DiffClassifier(ClassificationRegistry);

            return diffClassifier;
        }
    }
}