private void HandleKeyDown(object sender, KeyEventArgs e)
{
if (e.Control && !(e.Shift || e.Alt))
{
HandleControlKeyDown(sender, e);
return;
}
e.Handled = true;
if (Keys.Escape == e.KeyCode)
{
Select(_promptPosition, EndOfLinePosition);
UpdateCountsAndDeleteSelection();
FlushInputBuffer();
}
else if (Keys.Enter == e.KeyCode)
{
NotifyCommandEntered();
}
else if (Keys.Tab == e.KeyCode)
{
if (String.IsNullOrEmpty(_tabExpansionInput))
{
Select(_promptPosition, SelectionStart);
_tabExpansionInput = SelectedText;
}
string cmd = String.Empty;
if (!e.Shift)
{
cmd = AutoCompleteWalker.NextUp(_tabExpansionInput);
}
else
{
cmd = AutoCompleteWalker.NextDown(_tabExpansionInput);
}
if (String.IsNullOrEmpty(cmd))
{
Select(EndOfLinePosition, EndOfLinePosition);
return;
}
Select(_promptPosition, EndOfLinePosition);
InsertText(cmd);
}
else if (Keys.PageUp == e.KeyCode)
{
string cmd = HistoryStackWalker.Oldest();
if (String.IsNullOrEmpty(cmd))
{
return;
}
InsertHistoryItem(cmd.Trim());
}
else if (Keys.PageDown == e.KeyCode)
{
string cmd = HistoryStackWalker.Newest();
if (String.IsNullOrEmpty(cmd))
{
return;
}
InsertHistoryItem(cmd.Trim());
}
else if (Keys.Up == e.KeyCode)
{
string cmd = HistoryStackWalker.NextUp();
if (String.IsNullOrEmpty(cmd))
{
return;
}
InsertHistoryItem(cmd.Trim());
}
else if (Keys.Down == e.KeyCode)
{
string cmd = HistoryStackWalker.NextDown();
if (String.IsNullOrEmpty(cmd))
{
MoveCaretEOL(false);
return;
}
InsertHistoryItem(cmd.Trim());
}
else if (Keys.Back == e.KeyCode)
{
if (SelectionStart >= _promptPosition)
{
if (SelectionStart != _promptPosition && SelectionLength == 0)
{
int index = SelectionStart - 1;
Select(index, 1);
}
UpdateCountsAndDeleteSelection();
}
}
else if (Keys.Delete == e.KeyCode)
{
if (EndOfLinePosition > SelectionStart)
{
if (SelectionLength == 0)
{
int index = SelectionStart;
Select(index, 1);
}
UpdateCountsAndDeleteSelection();
}
}
else if (Keys.Home == e.KeyCode)
{
MoveCaretHome(e.Shift);
}
else if (Keys.End == e.KeyCode)
{
MoveCaretEOL(e.Shift);
}
else
{
e.Handled = false;
}
}
