Merge branch 'temp8' into HEAD

src/Umbraco.Web/Models/Mapping/ContentItemDisplayVariationResolver.cs

@@ -0,0 +1,62 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using AutoMapper;
+using Umbraco.Core;
+using Umbraco.Core.Models;
+using Umbraco.Core.Services;
+using Umbraco.Web.Models.ContentEditing;
+using ContentVariation = Umbraco.Web.Models.ContentEditing.ContentVariation;
+using Language = Umbraco.Web.Models.ContentEditing.Language;
+
+namespace Umbraco.Web.Models.Mapping
+{
+    /// <summary>
+    /// Used to map the <see cref="ContentItemDisplay"/> variations collection from an <see cref="IContent"/> instance
+    /// </summary>
+    internal class ContentItemDisplayVariationResolver : IValueResolver<IContent, ContentItemDisplay, IEnumerable<ContentVariation>>
+    {
+        private readonly ILocalizationService _localizationService;
+
+        public ContentItemDisplayVariationResolver(ILocalizationService localizationService)
+        {
+            _localizationService = localizationService ?? throw new ArgumentNullException(nameof(localizationService));
+        }
+
+        public IEnumerable<ContentVariation> Resolve(IContent source, ContentItemDisplay destination, IEnumerable<ContentVariation> destMember, ResolutionContext context)
+        {
+            var allLanguages = _localizationService.GetAllLanguages().OrderBy(x => x.Id).ToList();
+            if (allLanguages.Count == 0) return Enumerable.Empty<ContentVariation>();
+
+            var langs = context.Mapper.Map<IEnumerable<ILanguage>, IEnumerable<Language>>(allLanguages, null, context);
+            var variants = langs.Select(x => new ContentVariation
+            {
+                Language = x,
+                Mandatory = x.Mandatory,
+                Name = source.GetName(x.IsoCode),
+                Exists = source.IsCultureAvailable(x.IsoCode), // segments ??
+                PublishedState = source.PublishedState.ToString(),
+                //Segment = ?? We'll need to populate this one day when we support segments
+            }).ToList();
+
+            var culture = context.GetCulture();
+
+            //set the current variant being edited to the one found in the context or the default if nothing matches
+            var foundCurrent = false;
+            foreach (var variant in variants)
+            {
+                if (culture.InvariantEquals(variant.Language.IsoCode))
+                {
+                    variant.IsCurrent = true;
+                    foundCurrent = true;
+                    break;
+                }
+            }
+            if (!foundCurrent)
+                variants.First(x => x.Language.IsDefaultVariantLanguage).IsCurrent = true;
+
+            return variants;
+        }
+
+    }
+}