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// 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 System.Collections.Generic;
using System.Collections.Immutable;
using System.Composition;
using System.Threading;
using System.Threading.Tasks;
using Microsoft.CodeAnalysis.ExternalAccess.FSharp.Editor;
using Microsoft.CodeAnalysis.Formatting;
using Microsoft.CodeAnalysis.Host.Mef;
using Microsoft.CodeAnalysis.Indentation;
using Microsoft.CodeAnalysis.Options;
using Microsoft.CodeAnalysis.Text;
using Microsoft.VisualStudio.Text;
namespace Microsoft.CodeAnalysis.ExternalAccess.FSharp.Internal.Editor
{
[Shared]
[ExportLanguageService(typeof(IFormattingInteractionService), LanguageNames.FSharp)]
internal class FSharpEditorFormattingService : IFormattingInteractionService
{
private readonly IFSharpEditorFormattingService _service;
private readonly IGlobalOptionService _globalOptions;
[ImportingConstructor]
[Obsolete(MefConstruction.ImportingConstructorMessage, error: true)]
public FSharpEditorFormattingService(IFSharpEditorFormattingService service, IGlobalOptionService globalOptions)
{
_service = service;
_globalOptions = globalOptions;
}
public bool SupportsFormatDocument => _service.SupportsFormatDocument;
public bool SupportsFormatSelection => _service.SupportsFormatSelection;
public bool SupportsFormatOnPaste => _service.SupportsFormatOnPaste;
public bool SupportsFormatOnReturn => _service.SupportsFormatOnReturn;
public Task<IList<TextChange>> GetFormattingChangesAsync(Document document, TextSpan? textSpan, CancellationToken cancellationToken)
{
return _service.GetFormattingChangesAsync(document, textSpan, cancellationToken);
}
public Task<IList<TextChange>?> GetFormattingChangesAsync(Document document, char typedChar, int position, CancellationToken cancellationToken)
{
return _service.GetFormattingChangesAsync(document, typedChar, position, cancellationToken);
}
public Task<IList<TextChange>> GetFormattingChangesOnPasteAsync(Document document, TextSpan textSpan, CancellationToken cancellationToken)
{
return _service.GetFormattingChangesOnPasteAsync(document, textSpan, cancellationToken);
}
public Task<IList<TextChange>?> GetFormattingChangesOnReturnAsync(Document document, int position, CancellationToken cancellationToken)
{
return _service.GetFormattingChangesOnReturnAsync(document, position, cancellationToken);
}
public bool SupportsFormattingOnTypedCharacter(Document document, char ch)
{
if (_service is IFSharpEditorFormattingServiceWithOptions serviceWithOptions)
{
var indentStyle = _globalOptions.GetOption(IndentationOptionsStorage.SmartIndent, LanguageNames.FSharp);
var options = _globalOptions.GetAutoFormattingOptions(LanguageNames.FSharp);
return serviceWithOptions.SupportsFormattingOnTypedCharacter(document, new AutoFormattingOptionsWrapper(options, indentStyle), ch);
}
else
{
return _service.SupportsFormattingOnTypedCharacter(document, ch);
}
}
async Task<ImmutableArray<TextChange>> IFormattingInteractionService.GetFormattingChangesAsync(Document document, ITextBuffer textBuffer, TextSpan? textSpan, CancellationToken cancellationToken)
{
var changes = await GetFormattingChangesAsync(document, textSpan, cancellationToken).ConfigureAwait(false);
return changes?.ToImmutableArray() ?? ImmutableArray<TextChange>.Empty;
}
async Task<ImmutableArray<TextChange>> IFormattingInteractionService.GetFormattingChangesAsync(Document document, ITextBuffer textBuffer, char typedChar, int position, CancellationToken cancellationToken)
{
var changes = await GetFormattingChangesAsync(document, typedChar, position, cancellationToken).ConfigureAwait(false);
return changes?.ToImmutableArray() ?? ImmutableArray<TextChange>.Empty;
}
async Task<ImmutableArray<TextChange>> IFormattingInteractionService.GetFormattingChangesOnPasteAsync(Document document, ITextBuffer textBuffer, TextSpan textSpan, CancellationToken cancellationToken)
{
var changes = await GetFormattingChangesOnPasteAsync(document, textSpan, cancellationToken).ConfigureAwait(false);
return changes?.ToImmutableArray() ?? ImmutableArray<TextChange>.Empty;
}
async Task<ImmutableArray<TextChange>> IFormattingInteractionService.GetFormattingChangesOnReturnAsync(Document document, int position, CancellationToken cancellationToken)
{
var changes = await GetFormattingChangesOnReturnAsync(document, position, cancellationToken).ConfigureAwait(false);
return changes?.ToImmutableArray() ?? ImmutableArray<TextChange>.Empty;
}
}
}
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