﻿// 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.Collections.Generic;
using System.Diagnostics.CodeAnalysis;
using System.Windows;
using System.Windows.Documents;
using Microsoft.CodeAnalysis.Editor.Shared.Extensions;
using Microsoft.VisualStudio.Shell.TableControl;

namespace Microsoft.VisualStudio.LanguageServices.FindUsages
{
    internal partial class StreamingFindUsagesPresenter
    {
        private abstract class AbstractItemEntry : Entry
        {
            protected readonly StreamingFindUsagesPresenter Presenter;

            public AbstractItemEntry(RoslynDefinitionBucket definitionBucket, StreamingFindUsagesPresenter presenter)
                : base(definitionBucket)
            {
                Presenter = presenter;
            }

            public override bool TryCreateColumnContent(string columnName, [NotNullWhen(true)] out FrameworkElement? content)
            {
                if (columnName == StandardTableColumnDefinitions2.LineText)
                {
                    var inlines = CreateLineTextInlines();
                    var textBlock = inlines.ToTextBlock(Presenter.ClassificationFormatMap, wrap: false);

                    content = textBlock;
                    return true;
                }

                content = null;
                return false;
            }

            protected abstract IList<Inline> CreateLineTextInlines();
        }
    }
}
