private void SelectTaskSuggestion(ListMoveDirection direction)
{
Device.BeginInvokeOnMainThread(() =>
{
// lock for collection manupulation
lock (_autoCompleteTasksLock)
{
bool isAnySelected = Suggestions.Any(t => t.IsSelected);
if (!isAnySelected)
{
// select the last item in the list
Suggestions[Suggestions.Count - 1].IsSelected = true;
}
else if (Suggestions.Count > 1)
{
var selectedItem = Suggestions.First(t => t.IsSelected);
int index = Suggestions.IndexOf(selectedItem);
index = direction == ListMoveDirection.Next ? index + 1 : index - 1;
if (index < 0)
{
index = Suggestions.Count - 1;
}
if (index > Suggestions.Count - 1)
{
index = 0;
}
selectedItem.IsSelected = false;
selectedItem = Suggestions[index];
selectedItem.IsSelected = true;
}
}
});
}
private void button1_Click(object sender, EventArgs e)
{
if (Suggestions?.Any() ?? false)
{
cmSuggestions.Show(button1, new Point(0, button1.Height));
}
else
{
InvokeBuilder(sender);
}
}
private void UpdatePopup()
{
if (Popup != null)
{
if (Suggestions != null && Suggestions.Any())
{
Popup.IsOpen = true;
}
else
{
Popup.IsOpen = false;
}
}
}
void SetSuggestions()
{
if (!IsDropDownOpen)
{
return;
}
Suggestions.Clear();
var find = SelectedText == Text ? "" : SelectedText.CoalesceNullOrEmpty(Text) ?? "";
var ucFind = Regex.Replace(find, "[^A-Z]", "");
foreach (var suggestion in SuggestionList.Where(x => HasStr(x.Text, find)))
{
Suggestions.Add(suggestion);
}
if (!Suggestions.Any())
{
Suggestions.Add(null);
}
SuggestedIndex = find == "" ? 0 : Suggestions.Indexes(str => str?.Text.StartsWith(Text, StringComparison.InvariantCultureIgnoreCase) ?? false).FirstOrDefault();
}
