public override bool TryCreateFor(ITextBuffer hostDocumentBuffer, out VirtualDocument virtualDocument)
{
if (hostDocumentBuffer is null)
{
throw new ArgumentNullException(nameof(hostDocumentBuffer));
}
if (!hostDocumentBuffer.ContentType.IsOfType(HostDocumentContentTypeName))
{
// Another content type we don't care about.
virtualDocument = null;
return(false);
}
var hostDocumentUri = _fileUriProvider.GetOrCreate(hostDocumentBuffer);
// E.g. Index.cshtml => Index.cshtml__virtual.html (for html), similar for other languages
var virtualLanguageFilePath = hostDocumentUri.GetAbsoluteOrUNCPath() + LanguageFileNameSuffix;
var virtualLanguageUri = new Uri(virtualLanguageFilePath);
var languageBuffer = _textBufferFactory.CreateTextBuffer();
_fileUriProvider.AddOrUpdate(languageBuffer, virtualLanguageUri);
// This ensures that LiveShare does not serialize this virtual document to disk in LiveShare & Codespaces scenarios.
languageBuffer.Properties.AddProperty(ContainedLanguageMarker, true);
if (!(LanguageBufferProperties is null))
{
foreach (var keyValuePair in LanguageBufferProperties)
{
languageBuffer.Properties.AddProperty(keyValuePair.Key, keyValuePair.Value);
}
}
// Create a text document to trigger language server initialization for the contained language.
_textDocumentFactory.CreateTextDocument(languageBuffer, virtualLanguageFilePath);
languageBuffer.ChangeContentType(LanguageContentType, editTag: null);
virtualDocument = CreateVirtualDocument(virtualLanguageUri, languageBuffer);
return(true);
}
public abstract bool TryCreateFor(ITextBuffer hostDocumentBuffer, out VirtualDocument virtualDocument);