/// <summary>
/// Handles the tab key by calling all registered tab completion handlers.
/// </summary>
/// <param name="context">Context that can be used to inspect the current command line to perform tab completion</param>
public void Handle(RichCommandLineContext context)
{
context.Intercept = true;
context.RefreshTokenInfo();
try
{
foreach (var handler in TabCompletionHandlers)
{
if (handler.TryTabComplete(context))
{
break;
}
}
}
catch (Exception ex)
{
if (ThrowOnTabCompletionHandlerException)
{
throw;
}
else
{
PowerLogger.LogLine("Tab completion handler threw exception: " + ex.ToString());
}
}
}
private void DoSyntaxHighlighting(RichCommandLineContext context)
{
if (Highlighter == null)
{
return;
}
bool highlightChanged = false;
try
{
highlightChanged = Highlighter.TryHighlight(context);
}
catch (Exception ex)
{
if (ThrowOnSyntaxHighlightException)
{
throw;
}
else
{
PowerLogger.LogLine("Syntax highlighting threw exception: " + ex.ToString());
}
}
if (highlightChanged)
{
context.RefreshConsole(0, 0);
}
}
private void DoSearch(string searchString)
{
// as soon as this next line runs, any in flight searches become invalid
var myRequestId = expireableAsyncRequestManager.BeginRequest();
var backgroundSearchTask = new Task(() =>
{
try
{
List <ContextAssistSearchResult> results;
try
{
if (SupportsAsync)
{
var userAsyncTask = GetResultsAsync(searchString);
userAsyncTask.Wait();
results = userAsyncTask.Result;
}
else
{
results = GetResults(searchString);
}
}
catch (Exception ex)
{
PowerLogger.LogLine("Exception fetching results on search provider: " + GetType().FullName + "\n\n" + ex);
return;
}
lock (searchReader.SyncLock)
{
expireableAsyncRequestManager.EndRequest(() =>
{
// this block of code only runs if these results are from the most recent request and
// the original called of the search assist still cares about results.
selectedIndex = 0;
latestResults.Clear();
latestResults.AddRange(results);
latestResultsSearchString = searchString;
RedrawSearchResults();
}, myRequestId);
}
}catch (Exception ex)
{
PowerLogger.LogLine("Background exception is search provider: " + GetType().FullName + "\n\n" + ex);
}
});
backgroundSearchTask.Start();
}