catalog start(): register Controller driving Navigator over Scroll cards; focus once

plugin.js

@@ -135,10 +135,29 @@
             return html;
         };
 
-        // Required by ActivitySlide contract. Navigation/focus/scroll are handled by
-        // the native Lampa.Scroll (it registers its own Controller and auto-scrolls).
-        // Back (Escape / remote) is handled via the keydown listener in create().
+        // Required by ActivitySlide contract. Scroll (created in create()) owns the
+        // auto-scroll; we register a Controller that drives Navigator over the cards.
+        // Focus is set on the first card only once (no reset on re-toggle).
         this.start = function () {
+            var started = false;
+            Lampa.Controller.add('content', {
+                toggle: function () {
+                    var wrap = $('.mymovies');
+                    var cards = wrap.find('.card.selector');
+                    if (!cards.length) return;
+                    Lampa.Controller.collectionSet(wrap);
+                    if (!started) {
+                        started = true;
+                        Lampa.Controller.collectionFocus(cards[0], wrap);
+                    }
+                },
+                left: function () { if (Navigator.canmove('left')) Navigator.move('left'); else Lampa.Controller.toggle('menu'); },
+                right: function () { Navigator.move('right'); },
+                up: function () { Navigator.move('up'); },
+                down: function () { Navigator.move('down'); },
+                back: function () { Lampa.Activity.backward(); }
+            });
+            Lampa.Controller.toggle('content');
         };
 
         // Build each card and append through the native Scroll (handles focus + scroll).