Better-Seewo/Better-EN5/UIItemManagerExtensions.cs

using System;
using System.Collections.Generic;
using System.Windows;
using System.Windows.Threading;
using Cvte.EasiNote;
using Cvte.Windows.Localization;

namespace BetterEN5
{
    static class UIItemManagerExtensions
    {
        public static void AppendWithLang(this IUIItemManager manager, UIItem item,
            UIItemAttribute attribute, IList<UIItemLangInfo> langInfoList)
        {
            manager.Append(c => item, attribute);

            var purpose = attribute.Purposes[0];
            string menuName;
            if (purpose == UIItemPurposes.BoardEditMenu)
            {
                menuName = "BoardEditContextMenu";
            }
            else if (purpose == UIItemPurposes.HeadToolBar)
            {
                menuName = "HeadToolBar";
            }
            else
            {
                menuName = purpose.Replace(".", "_");
            }

            var itemLangKey = item.GetType().Name.Replace("MenuItem", "").Replace("HeadToolBar", "").Replace("ApplicationMenu", "").Replace("ExtendedTitleBar", "");
            var langKey = $"Lang.{menuName}.{itemLangKey}";

            Application.Current.Dispatcher.InvokeAsync(() =>
            {
                foreach (var langInfo in langInfoList)
                {
                    Lang.Sources.Add(new DictionaryLanguageSource
                    {
                        [langInfo.CultureInfo] = new Dictionary<string, string>()
                        {
                            { langKey, langInfo.LangText },
                        },
                    });
                }
            }, DispatcherPriority.Send);
        }
    }
}