Sitecore publishing service dialog languages order

Question

Where is the order of languages in Publish Item dialog defined?

And what would be the way to amend it i.e. make it the same order as languages under /sitecore/system/Languages?

Couldn't find anything about the topic online 😔

Answer 1

tl/dr;

You can't change the order without custom code.

The Why?

When the Publish form builds the language list, it first calls:

LanguageManager.GetLanguages(Context.ContentDatabase);

Then orders then using:

languages.OrderBy(l => l.GetDisplayName())

Unfortunately, .GetDisplayName() does not get the display name of the item, but the display name of the CultureInfo of the language code:

/// <summary>Gets the display name.</summary>
/// <param name="cultureInfo">The culture info.</param>
/// <returns>The display name.</returns>
public static string GetDisplayName(CultureInfo cultureInfo)
{
    Sitecore.Diagnostics.Assert.ArgumentNotNull((object) cultureInfo, nameof (cultureInfo));
    if ((cultureInfo.CultureTypes & CultureTypes.UserCustomCulture) != CultureTypes.UserCustomCulture)
        return cultureInfo.EnglishName + " : " + cultureInfo.NativeName;
    return "{0} : {1}".FormatWith((object) cultureInfo.Name, (object) cultureInfo.NativeName);
}

So the only way to change it would be to override the default Publish dialog and create your own to order the languages differently.