public async void fdViewer_MouseUp(object sender, MouseButtonEventArgs e)
{
var fdViewer = (FlowDocumentScrollViewer)sender;
if (fdViewer.Selection != null)
{
var selectionStart = fdViewer.Selection.Start;
var selectionEnd = fdViewer.Selection.End;
var selection = new TextRange(selectionStart, selectionEnd).Text;
if (selection.Length > 0)
{
CancellationTokenSource cts = new CancellationTokenSource();
var tabIndex = selection.IndexOf('\t');
if (tabIndex != -1)
{
selection = selection.Substring(tabIndex + 1);
}
popupResults = await engine.SearchExact(cts.Token, selection);
popupNumberOfEntries = popupResults.Count();
if (popupNumberOfEntries > 0)
{
popupIndex = 0;
popupNext.Visibility = popupPrev.Visibility = (Visibility)(new BooleanToVisibilityConverter().Convert(popupNumberOfEntries > 1, null, null, null));
popupPrev.IsEnabled = false;
popupViewer.Document = DictionaryRenderer.Render(popupResults.First(), engine, true);
popup.IsOpen = true;
ScrollPopupToTop();
}
}
//var pos = e.GetPosition(fdViewer);
}
}
private void popupNext_Click(object sender, RoutedEventArgs e)
{
if (popupIndex + 1 < popupNumberOfEntries)
{
popupIndex++;
popupViewer.Document = DictionaryRenderer.Render(popupResults.ElementAt(popupIndex), engine);
ScrollPopupToTop();
if (popupIndex + 1 == popupNumberOfEntries)
{
popupNext.IsEnabled = false;
}
popupPrev.IsEnabled = true;
}
}