protected override void OnTextChanged(TextChangedEventArgs e)
{
base.OnTextChanged(e);
Decorations.Clear();
if (!textChangedEnable)
{
return;
}
if (isPasted)
{
isPasted = false; return;
}
foreach (var change in e.Changes)
{
if (popup.IsOpen)
{
for (int i = 0; i < change.AddedLength; i++)
{
if (!char.IsLetterOrDigit(Text, change.Offset + i))
{
popup.IsOpen = false;
return;
}
}
}
if (!popup.IsOpen &&
change.AddedLength > 0 &&
(change.Offset <= 0 ||
!char.IsLetterOrDigit(Text, change.Offset - 1)))
{
popup.Input = string.Empty;
popup.Offset = change.Offset;
popup.IsOpen = true;
popup.ListBox.SelectedIndex = 0;
FixPopupPosition(change.Offset);
}
}
if (popup.IsOpen)
{
int inputlast;
for (inputlast = popup.Offset; inputlast < Text.Length && char.IsLetterOrDigit(Text[inputlast]); inputlast++)
{
;
}
if (inputlast > popup.Offset)
{
popup.Input = Text.Substring(popup.Offset, inputlast - popup.Offset);
}
else
{
popup.IsOpen = false;
}
}
}