// 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.ComponentModel.Composition;
using Microsoft.CodeAnalysis.Editor.Host;
using Microsoft.CodeAnalysis.Editor.Shared.Utilities;
using Microsoft.CodeAnalysis.Host.Mef;
using Microsoft.VisualStudio.Text;
using Microsoft.VisualStudio.Text.Adornments;
using Microsoft.VisualStudio.Text.Classification;
using Microsoft.VisualStudio.Text.Editor;
using Microsoft.VisualStudio.Text.Tagging;
using Microsoft.VisualStudio.Utilities;
namespace Microsoft.CodeAnalysis.Editor.InlineHints
{
///
/// The provider that is used as a middleman to create the tagger so that the data tag
/// can be used to create the UI tag
///
[Export(typeof(IViewTaggerProvider))]
[ContentType(ContentTypeNames.RoslynContentType)]
[TagType(typeof(IntraTextAdornmentTag))]
[Name(nameof(InlineHintsTaggerProvider))]
internal class InlineHintsTaggerProvider : IViewTaggerProvider
{
private readonly IViewTagAggregatorFactoryService _viewTagAggregatorFactoryService;
public readonly IClassificationFormatMapService ClassificationFormatMapService;
public readonly IClassificationTypeRegistryService ClassificationTypeRegistryService;
public readonly IThreadingContext ThreadingContext;
public readonly IToolTipService ToolTipService;
public readonly Lazy StreamingFindUsagesPresenter;
[ImportingConstructor]
[Obsolete(MefConstruction.ImportingConstructorMessage, error: true)]
public InlineHintsTaggerProvider(
IViewTagAggregatorFactoryService viewTagAggregatorFactoryService,
IClassificationFormatMapService classificationFormatMapService,
IClassificationTypeRegistryService classificationTypeRegistryService,
IThreadingContext threadingContext,
IToolTipService toolTipService,
Lazy streamingFindUsagesPresenter)
{
_viewTagAggregatorFactoryService = viewTagAggregatorFactoryService;
this.ClassificationFormatMapService = classificationFormatMapService;
this.ClassificationTypeRegistryService = classificationTypeRegistryService;
this.ThreadingContext = threadingContext;
this.ToolTipService = toolTipService;
this.StreamingFindUsagesPresenter = streamingFindUsagesPresenter;
}
public ITagger? CreateTagger(ITextView textView, ITextBuffer buffer) where T : ITag
{
// Determining of the textView's buffer does not match the buffer in order to skip showing the hints for
// the interactive window
if (buffer != textView.TextBuffer)
{
return null;
}
var tagAggregator = _viewTagAggregatorFactoryService.CreateTagAggregator(textView);
return new InlineHintsTagger(this, (IWpfTextView)textView, buffer, tagAggregator) as ITagger;
}
}
}