feat: marketplace keyboard/gamepad navigation

objects/ui/marketplace_button.tscn

@@ -4,6 +4,7 @@
 [ext_resource type="Script" uid="uid://vokgv56bjpf1" path="res://scripts/UI/MarketplaceButton.cs" id="2_vb2qn"]
 
 [node name="MarketplaceButton" type="Button" node_paths=PackedStringArray("SkillLevelContainer")]
+focus_mode = 2
 offset_right = 8.0
 offset_bottom = 8.0
 size_flags_horizontal = 3

objects/ui/skill_button.tscn

@@ -4,6 +4,7 @@
 [ext_resource type="Script" uid="uid://bw8dlgq86jrtt" path="res://scripts/UI/SkillButton.cs" id="2_m2732"]
 
 [node name="SkillButton" type="Button"]
+focus_mode = 2
 offset_right = 8.0
 offset_bottom = 8.0
 size_flags_horizontal = 3

scripts/UI/Marketplace.cs

@@ -38,6 +38,9 @@ public partial class Marketplace : Control
 
         SkillUnlockerComponent.SkillUnlocked += OnSkillUnlocked;
         EventBus.Instance.SkillCollected += OnGlobalSkillCollected;
+
+        if (InputDeviceManager.Instance != null)
+            InputDeviceManager.Instance.DeviceChanged += OnDeviceChanged;
     }
 
     public override void _ExitTree()
@@ -47,10 +50,21 @@ public partial class Marketplace : Control
         {
             EventBus.Instance.SkillCollected -= OnGlobalSkillCollected;
         }
+
+        if (InputDeviceManager.Instance != null)
+            InputDeviceManager.Instance.DeviceChanged -= OnDeviceChanged;
     }
 
     public override void _Input(InputEvent @event)
     {
+        if (@event.IsActionPressed("ui_cancel") && IsVisible())
+        {
+            Hide();
+            foreach (var c in ComponentsToDisable) c.ProcessMode = ProcessModeEnum.Inherit;
+            GetViewport().SetInputAsHandled();
+            return;
+        }
+
         if (!@event.IsActionPressed("show_marketplace")) return;
 
         if (IsVisible())
@@ -62,6 +76,35 @@ public partial class Marketplace : Control
         {
             Show();
             foreach (var c in ComponentsToDisable) c.ProcessMode = ProcessModeEnum.Disabled;
+            if (InputDeviceManager.Instance?.IsPointerless == true)
+                GrabFirstFocus();
+        }
+    }
+
+    private void OnDeviceChanged(int device)
+    {
+        var d = (InputDeviceManager.InputDevice)device;
+        if (d != InputDeviceManager.InputDevice.Mouse && IsVisible())
+            GrabFirstFocus();
+    }
+
+    private void GrabFirstFocus()
+    {
+        foreach (var btn in _unlockButtons)
+        {
+            if (btn.Visible && !btn.Disabled)
+            {
+                btn.GrabFocus();
+                return;
+            }
+        }
+        foreach (var btn in _skillButtons)
+        {
+            if (btn.Visible)
+            {
+                btn.GrabFocus();
+                return;
+            }
         }
     }