internal static async Task <SyntaxNode> GetSelectedSyntaxNode(IVsTextManager textManager)
{
int startPosition, endPosition;
string filePath;
if (textManager.TryFindDocumentAndPosition(out filePath, out startPosition, out endPosition))
{
Document document;
try
{
document = WorkspaceHelpers.GetDocument(filePath);
}
catch (NullReferenceException ex)
{
StatusBar.ShowStatus($"Error accessing the document. Try building the solution.");
return(null);
}
var root = await document.GetSyntaxRootAsync();
var element = root.FindNode(new Microsoft.CodeAnalysis.Text.TextSpan(startPosition, endPosition - startPosition));
return(element);
}
else
{
StatusBar.ShowStatus("To use generator preview, please navigate to C# code.");
return(null);
}
}
