private void AssociatedObject_TextInput(object sender, TextCompositionEventArgs e)
{
var text = e.Text;
if (text.StartsWith(Constants.Twitter.HashTag, StringComparison.Ordinal))
{
FilterText = string.Empty;
AutoCompletePopup.IsOpen = true;
AutoCompleteBox.ItemsSource = FilteredHashtags;
AutoCompleteBox.SelectedIndex = 0;
Mode = SourceMode.Hashtags;
}
else if (text.StartsWith(Constants.Twitter.Mention, StringComparison.Ordinal))
{
FilterText = string.Empty;
AutoCompletePopup.IsOpen = true;
AutoCompleteBox.ItemsSource = FilteredUsers;
AutoCompleteBox.SelectedIndex = 0;
Mode = SourceMode.Users;
}
else if (AutoCompletePopup.IsOpen)
{
string selectedText = (string)AutoCompleteBox.SelectedItem;
FilterText += text;
var items = FilteredItems.ToList();
Debug.WriteLine(string.Join(" - ", items));
AutoCompleteBox.ItemsSource = items;
AutoCompleteBox.SelectedIndex = items.IndexOf(selectedText);
if (AutoCompleteBox.SelectedIndex < 0)
{
AutoCompleteBox.SelectedIndex = 0;
}
AutoCompleteBox.InvalidateProperty(ItemsControl.ItemsSourceProperty);
}
}