//
// Update history buttons
//
void UpdateHistoryButtons()
{
if (CurrentReference is null)
{
ActionHistoryVerseNext.Enabled = false;
ActionHistoryVerseBack.Enabled = false;
return;
}
var list = HistoryItems.ToList();
int index = list.FindIndex(r => r.CompareTo(CurrentReference) == 0);
if (index == -1)
{
ActionHistoryVerseNext.Enabled = false;
ActionHistoryVerseBack.Enabled = false;
return;
}
var view = Settings.CurrentView;
bool canHistoryMove = view == ViewMode.ChapterVerses || view == ViewMode.ChapterTranslation || view == ViewMode.ChapterOriginal;
ActionHistoryVerseNext.Enabled = canHistoryMove && index != 0;
ActionHistoryVerseBack.Enabled = canHistoryMove && index != list.Count - 1;
}