// 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.CodeAnalysis.Text;
using Microsoft.VisualStudio.Text;
using Microsoft.VisualStudio.Text.Editor;
 
namespace Microsoft.CodeAnalysis.Editor.Implementation.Suggestions;
 
internal sealed partial class SuggestedActionsSourceProvider
{
    private partial class SuggestedActionsSource
    {
        private sealed class State : IDisposable
        {
            private readonly SuggestedActionsSource _source;
 
            public readonly SuggestedActionsSourceProvider Owner;
            public readonly ITextView TextView;
            public readonly ITextBuffer SubjectBuffer;
            public readonly WorkspaceRegistration Registration;
 
            public Workspace? Workspace => Registration.Workspace;
 
            public State(SuggestedActionsSource source, SuggestedActionsSourceProvider owner, ITextView textView, ITextBuffer textBuffer)
            {
                _source = source;
 
                Owner = owner;
                TextView = textView;
                SubjectBuffer = textBuffer;
                Registration = Workspace.GetWorkspaceRegistration(textBuffer.AsTextContainer());
            }
 
            void IDisposable.Dispose()
            {
                if (TextView != null)
                    TextView.Closed -= _source.OnTextViewClosed;
            }
        }
    }
}