add nova

nova/src/Tools/Dashboard.php

@@ -0,0 +1,36 @@
+<?php
+
+namespace Laravel\Nova\Tools;
+
+use Illuminate\Http\Request;
+use Laravel\Nova\Menu\MenuSection;
+use Laravel\Nova\Nova;
+use Laravel\Nova\Tool;
+
+class Dashboard extends Tool
+{
+    /**
+     * Build the menu that renders the navigation links for the tool.
+     *
+     * @param  \Illuminate\Http\Request  $request
+     * @return mixed
+     */
+    public function menu(Request $request)
+    {
+        $dashboards = collect(Nova::availableDashboards($request));
+
+        if ($dashboards->count() > 1) {
+            return MenuSection::make(Nova::__('Dashboards'), $dashboards->map(function ($dashboard) use ($request) {
+                return $dashboard->menu($request);
+            }))
+            ->collapsable()
+            ->icon('view-grid');
+        }
+
+        if ($dashboards->count() == 1) {
+            return MenuSection::make($dashboards->first()->label(), $dashboards)
+                ->path("/dashboards/{$dashboards->first()->uriKey()}")
+                ->icon('view-grid');
+        }
+    }
+}