V8: Allow content to be shown before list view (#5074)

src/Umbraco.Web/ContentApps/ContentEditorContentAppFactory.cs

@@ -9,7 +9,7 @@ namespace Umbraco.Web.ContentApps
     internal class ContentEditorContentAppFactory : IContentAppFactory
     {
         // see note on ContentApp
-        private const int Weight = -100;
+        internal const int Weight = -100;
 
         private ContentApp _contentApp;
         private ContentApp _mediaApp;

src/Umbraco.Web/ContentApps/ListViewContentAppFactory.cs

@@ -1,5 +1,6 @@
 using System;
 using System.Collections.Generic;
+using Umbraco.Core;
 using Umbraco.Core.Models;
 using Umbraco.Core.Models.ContentEditing;
 using Umbraco.Core.Models.Membership;
@@ -99,6 +100,12 @@ namespace Umbraco.Web.ContentApps
                 if (configTabName != null && String.IsNullOrWhiteSpace(configTabName.ToString()) == false)
                     contentApp.Name = configTabName.ToString();
             }
+            // if the list view is configured to show umbContent first, update the list view content app weight accordingly
+            if(listViewConfig.ContainsKey("showContentFirst") &&
+               listViewConfig["showContentFirst"]?.ToString().TryConvertTo<bool>().Result == true)
+            {
+                contentApp.Weight = ContentEditorContentAppFactory.Weight + 1;
+            }
 
             //This is the view model used for the list view app
             contentApp.ViewModel = new List<ContentPropertyDisplay>

src/Umbraco.Web/PropertyEditors/ListViewConfiguration.cs

@@ -63,6 +63,9 @@ namespace Umbraco.Web.PropertyEditors
         [ConfigurationField("tabName", "Content app name", "textstring", Description = "The name of the listview content app (default if empty: 'Child Items')")]
         public string TabName { get; set; }
 
+        [ConfigurationField("showContentFirst", "Show Content App First", "boolean", Description = "Enable this to show the content app by default instead of the list view app")]
+        public bool ShowContentFirst { get; set; }
+
         public class Property
         {
             [JsonProperty("alias")]