Umbraco-CMS/src/Umbraco.Web.BackOffice/Trees/LogViewerTreeController.cs

using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc;
using Umbraco.Core.Services;
using Umbraco.Web.BackOffice.Filters;
using Umbraco.Web.Common.Attributes;
using Umbraco.Web.Common.Authorization;
using Umbraco.Web.Models.Trees;
using Umbraco.Web.Trees;
using Umbraco.Web.WebApi;
using Constants = Umbraco.Core.Constants;

namespace Umbraco.Web.BackOffice.Trees
{
    [Authorize(Policy = AuthorizationPolicies.TreeAccessLogs)]
    [Tree(Constants.Applications.Settings, Constants.Trees.LogViewer, SortOrder= 9, TreeGroup = Constants.Trees.Groups.Settings)]
    [PluginController(Constants.Web.Mvc.BackOfficeTreeArea)]
    [CoreTree]
    public class LogViewerTreeController : TreeController
    {
        public LogViewerTreeController(
            ILocalizedTextService localizedTextService,
            UmbracoApiControllerTypeCollection umbracoApiControllerTypeCollection)
            : base(localizedTextService, umbracoApiControllerTypeCollection)
        {
        }

        protected override TreeNodeCollection GetTreeNodes(string id, FormCollection queryStrings)
        {
            //We don't have any child nodes & only use the root node to load a custom UI
            return new TreeNodeCollection();
        }

        protected override ActionResult<MenuItemCollection> GetMenuForNode(string id, FormCollection queryStrings)
        {
            //We don't have any menu item options (such as create/delete/reload) & only use the root node to load a custom UI
            return null;
        }

        /// <summary>
        /// Helper method to create a root model for a tree
        /// </summary>
        /// <returns></returns>
        protected override TreeNode CreateRootNode(FormCollection queryStrings)
        {
            var root = base.CreateRootNode(queryStrings);

            //this will load in a custom UI instead of the dashboard for the root node
            root.RoutePath = string.Format("{0}/{1}/{2}", Constants.Applications.Settings, Constants.Trees.LogViewer, "overview");
            root.Icon = "icon-box-alt";
            root.HasChildren = false;
            root.MenuUrl = null;

            return root;
        }
    }
}