public override IList <UiListItem> GetUiListCompareWholeItems(ISet <ULocale> localeSet, IComparer <UiListItem> comparer)
{
DisplayContext capContext = GetContext(DisplayContextType.Capitalization);
List <UiListItem> result = new List <UiListItem>();
IDictionary <ULocale, ISet <ULocale> > baseToLocales = new Dictionary <ULocale, ISet <ULocale> >();
ULocale.Builder builder = new ULocale.Builder();
foreach (ULocale locOriginal in localeSet)
{
builder.SetLocale(locOriginal); // verify well-formed. We do this here so that we consistently throw exception
ULocale loc = ULocale.AddLikelySubtags(locOriginal);
ULocale @base = new ULocale(loc.GetLanguage());
ISet <ULocale> locales = baseToLocales.Get(@base);
if (locales == null)
{
baseToLocales[@base] = locales = new HashSet <ULocale>();
}
locales.Add(loc);
}
foreach (var entry in baseToLocales)
{
ULocale @base = entry.Key;
ISet <ULocale> values = entry.Value;
if (values.Count == 1)
{
ULocale locale = values.First();
result.Add(NewRow(ULocale.MinimizeSubtags(locale, ULocale.Minimize.FAVOR_SCRIPT), capContext));
}
else
{
ISet <string> scripts = new HashSet <string>();
ISet <string> regions = new HashSet <string>();
// need the follow two steps to make sure that unusual scripts or regions are displayed
ULocale maxBase = ULocale.AddLikelySubtags(@base);
scripts.Add(maxBase.GetScript());
regions.Add(maxBase.GetCountry());
foreach (ULocale locale in values)
{
scripts.Add(locale.GetScript());
regions.Add(locale.GetCountry());
}
bool hasScripts = scripts.Count > 1;
bool hasRegions = regions.Count > 1;
foreach (ULocale locale in values)
{
ULocale.Builder modified = builder.SetLocale(locale);
if (!hasScripts)
{
modified.SetScript("");
}
if (!hasRegions)
{
modified.SetRegion("");
}
result.Add(NewRow(modified.Build(), capContext));
}
}
}
result.Sort(comparer);
return(result);
}