async Task IKeyPressHandler.OnKeyDown(KeyPress key, CancellationToken cancellationToken)
{
if (!EnoughRoomToDisplay(this.codePane))
{
return;
}
var completionListTriggered = configuration.KeyBindings.TriggerCompletionList.Matches(key.ConsoleKeyInfo);
completionListTriggeredOnKeyDown = completionListTriggered;
lastSpanToReplaceOnKeyDown = null;
if (IsOpen)
{
var documentText = codePane.Document.GetText();
int documentCaret = codePane.Document.Caret;
var spanToReplace = await promptCallbacks.GetSpanToReplaceByCompletionkAsync(documentText, documentCaret, cancellationToken).ConfigureAwait(false);
lastSpanToReplaceOnKeyDown = spanToReplace;
switch (key.ObjectPattern)
{
case Home or(_, Home):
case End or(_, End):
case (Shift, LeftArrow or RightArrow or UpArrow or DownArrow or Home or End) or
(Control | Shift, LeftArrow or RightArrow or UpArrow or DownArrow or Home or End) or
(Control, A):
Close();
return;
case LeftArrow or RightArrow:
int caretNew = documentCaret + (key.ConsoleKeyInfo.Key == LeftArrow ? -1 : 1);
if (caretNew < spanToReplace.Start || caretNew > spanToReplace.Start + spanToReplace.Length)
{
Close();
return;
}
break;
case Escape:
Close();
key.Handled = true;
return;
default:
break;
}
}
else
{
if (completionListTriggered)
{
if (codePane.Selection is null)
{
Open();
}
key.Handled = true;
}
return;
}
Debug.Assert(IsOpen);
if (FilteredView.IsEmpty)
{
if (completionListTriggered)
{
Close();
Open();
key.Handled = true;
}
return;
}
//completion list is open and there are some items
switch (key.ObjectPattern)
{
case DownArrow:
this.FilteredView.IncrementSelectedIndex();
key.Handled = true;
break;
case UpArrow:
this.FilteredView.DecrementSelectedIndex();
key.Handled = true;
break;
case var _ when configuration.KeyBindings.TriggerCompletionList.Matches(key.ConsoleKeyInfo):
key.Handled = true;
break;
default:
if (FilteredView.SelectedItem is null)
{
if (configuration.KeyBindings.CommitCompletion.Matches(key.ConsoleKeyInfo))
{
Close();
}
}
else if (configuration.KeyBindings.CommitCompletion.Matches(key.ConsoleKeyInfo, FilteredView.SelectedItem.CommitCharacterRules))
{
await InsertCompletion(codePane, FilteredView.SelectedItem, cancellationToken).ConfigureAwait(false);
key.Handled = char.IsControl(key.ConsoleKeyInfo.KeyChar);
}
break;
}
}
