private static IEnumerable <ICompletionListProvider> GetCompletionProviders(PaketDocument paketDocument, ITextStructureNavigator navigator, SnapshotPoint position, out CompletionContext context)
{
context = GetCompletionContext(paketDocument, navigator, position);
return(GetCompletionProviders(context.ContextType));
}
public static IEnumerable <ICompletionListProvider> GetCompletionProviders(IIntellisenseSession session, ITextBuffer textBuffer, SnapshotPoint position, ITextStructureNavigator navigator, out CompletionContext context)
{
IEnumerable <ICompletionListProvider> providers = GetCompletionProviders(PaketDocument.FromTextBuffer(textBuffer), navigator, position, out context);
if (context == null)
{
return(providers);
}
if (context.Snapshot == null)
{
context.Snapshot = textBuffer.CurrentSnapshot;
}
if (context.Session != null)
{
return(providers);
}
context.Session = session;
return(providers);
}
private static CompletionContext GetCompletionContext(PaketDocument paketDocument, ITextStructureNavigator navigator, SnapshotPoint position)
{
TextExtent endPosition = navigator.GetExtentOfWord(position - 1);
TextExtent startPosition = endPosition;
// try to extend the span over .
while (!String.IsNullOrWhiteSpace(paketDocument.GetCharAt(startPosition.Span.Start.Position - 1)))
{
startPosition = navigator.GetExtentOfWord(startPosition.Span.Start - 2);
}
var startPos = startPosition.Span.Start.Position;
var length = endPosition.Span.End.Position - startPos;
var span = new Span(startPos, length);
var snapShotSpan = new SnapshotSpan(position.Snapshot, span);
var context = new CompletionContext(span);
var pos = startPosition.Span.Start;
if (startPosition.Span.Start.Position > 0)
{
pos = startPosition.Span.Start - 1;
}
TextExtent previous = navigator.GetExtentOfWord(pos);
// try to extend the span over blanks
while (paketDocument.GetCharAt(previous.Span.Start.Position) == " ")
{
var pos2 = previous.Span.Start;
if (previous.Span.Start.Position > 0)
{
pos2 = previous.Span.Start - 1;
}
previous = navigator.GetExtentOfWord(pos2);
}
var lastWord = previous.Span.GetText();
switch (lastWord)
{
case "nuget": context.ContextType = CompletionContextType.NuGet; break;
case "source": context.ContextType = CompletionContextType.Source; break;
case "strategy": context.ContextType = CompletionContextType.Strategy; break;
case "framework": context.ContextType = CompletionContextType.Framework; break;
case "version": context.ContextType = CompletionContextType.Version; break;
case "storage": context.ContextType = CompletionContextType.Storage; break;
case "content": context.ContextType = CompletionContextType.Content; break;
case "copy_content_to_output_dir": context.ContextType = CompletionContextType.CopyToOutputDirectory; break;
case "copy_local": context.ContextType = CompletionContextType.CopyLocal; break;
case "import_targets": context.ContextType = CompletionContextType.ImportTargets; break;
case "download_license": context.ContextType = CompletionContextType.DownloadLicense; break;
case "redirects": context.ContextType = CompletionContextType.Redirects; break;
case "lowest_matching": context.ContextType = CompletionContextType.LowestMatching; break;
case "generate_load_scripts": context.ContextType = CompletionContextType.GenerateLoadScripts; break;
case "references": context.ContextType = CompletionContextType.References; break;
default: context.ContextType = CompletionContextType.Keyword; break;
}
context.Snapshot = snapShotSpan.Snapshot;
return(context);
}
