Add new directive @breadcrumb

Author: Thitithan Atthakasem

src/LaravelJsonMenu.php

@@ -2,6 +2,9 @@
 
 namespace Atthakasem\LaravelJsonMenu;
 
+use DOMDocument;
+use DOMXPath;
+
 class LaravelJsonMenu
 {
     public $menu;
@@ -16,8 +19,23 @@ public function __construct(?string $menuName = null, ?string $directory = null)
      *
      * @return string
      */
-    public function generate(): string
+    public function generateMenu(): string
     {
         return $this->menu->generateHtml();
     }
+
+    /**
+     * Generate the breadcrumb
+     *
+     * @return string
+     */
+    public function generateBreadcrumb(): string
+    {
+        $doc = new DOMDocument;
+        $doc->loadHTML($this->menu->generateHtml());
+        $xpath = new DOMXPath($doc);
+        $activeLinks = $xpath->query('//a[contains(concat(" ", normalize-space(@class), " "), " active ")]');
+
+        return $activeLinks === false ? '' : $this->menu->generateBreadcrumb($activeLinks);
+    }
 }

src/LaravelJsonMenuServiceProvider.php

@@ -14,8 +14,14 @@ class LaravelJsonMenuServiceProvider extends ServiceProvider
      */
     public function boot(): void
     {
+        // Menu directive
         Blade::directive('menu', function ($expression) {
-            return "<?= (new Atthakasem\LaravelJsonMenu\LaravelJsonMenu($expression))->generate(); ?>";
+            return "<?= (new Atthakasem\LaravelJsonMenu\LaravelJsonMenu($expression))->generateMenu(); ?>";
+        });
+
+        // Breadcrumb directive
+        Blade::directive('breadcrumb', function ($expression) {
+            return "<?= (new Atthakasem\LaravelJsonMenu\LaravelJsonMenu($expression))->generateBreadcrumb(); ?>";
         });
 
         // $this->loadTranslationsFrom(__DIR__.'/../resources/lang', 'atthakasem');