// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
 
using System;
using Microsoft.VisualStudio.Text.Editor;
 
namespace Microsoft.CodeAnalysis.Editor.Shared.Tagging
{
    internal partial class TaggerEventSources
    {
        private class SelectionChangedEventSource : AbstractTaggerEventSource
        {
            private readonly ITextView _textView;
 
            public SelectionChangedEventSource(ITextView textView)
                => _textView = textView;
 
            public override void Connect()
                => _textView.Selection.SelectionChanged += OnSelectionChanged;
 
            public override void Disconnect()
                => _textView.Selection.SelectionChanged -= OnSelectionChanged;
 
            private void OnSelectionChanged(object? sender, EventArgs args)
                => RaiseChanged();
        }
    }
}