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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.
//
namespace Microsoft.VisualStudio.Text.Outlining
{
using System;
using System.ComponentModel.Composition;
using Microsoft.VisualStudio.Text.Editor;
using Microsoft.VisualStudio.Text.Tagging;
using Microsoft.VisualStudio.Threading;
using Microsoft.VisualStudio.Utilities;
using Microsoft.Win32;
[Export(typeof(IOutliningManagerService))]
internal class OutliningManagerService : IOutliningManagerService
{
[Import]
internal IBufferTagAggregatorFactoryService TagAggregatorFactory { get; set; }
[Import]
internal IEditorOptionsFactoryService EditorOptionsFactoryService { get; set; }
// While these are IDisposable, they are kept for the life of the textView, meaning that callers shouldn't actually
// dispose of them.
public IOutliningManager GetOutliningManager(ITextView textView)
{
if (textView == null)
throw new ArgumentNullException(nameof(textView));
if (!textView.Roles.Contains(PredefinedTextViewRoles.Structured))
return null;
return textView.Properties.GetOrCreateSingletonProperty(delegate
{
var tagAggregator = TagAggregatorFactory.CreateTagAggregator<IOutliningRegionTag>(textView.TextBuffer);
var manager = new OutliningManager(textView.TextBuffer, tagAggregator, EditorOptionsFactoryService.GlobalOptions);
textView.Closed += delegate { manager.Dispose(); };
return manager;
});
}
[Export(typeof(EditorOptionDefinition))]
[Name(InternalOptions.SuppressOutliningOptionName)]
internal sealed class SuppressOutliningOption : EditorOptionDefinition<bool>
{
public override bool Default => false;
public override EditorOptionKey<bool> Key => InternalOptions.SuppressOutliningOptionId;
}
}
}
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