UI系统组件

Assets/_Game/Scripts/UI/Menus/SettingsPanelController.cs

@@ -1,16 +1,17 @@
 using TMPro;
 using UnityEngine;
 using UnityEngine.UI;
-using UnityEngine.EventSystems;
 using BaseGames.Core;
+using BaseGames.Localization;
 
 namespace BaseGames.UI
 {
     /// <summary>
     /// 设置面板控制器（架构 10_UIModule §7）。
     /// 驱动 SettingsManager 的音量与画面设置，并从当前配置初始化控件值。
+    /// 生命周期 / 焦点由 <see cref="UIPanelBase"/> 统一处理。
     /// </summary>
-    public class SettingsPanelController : MonoBehaviour, IFocusable
+    public class SettingsPanelController : UIPanelBase
     {
         // ISettingsService 通过 ServiceLocator 获取，无需 Inspector 直接注入具体类，
         // 支持测试场景替换 Mock 实现。
@@ -32,12 +33,19 @@ namespace BaseGames.UI
         [SerializeField] private TMP_Dropdown _colorblindDropdown;  // None / Prot / Deut / Trit
         [SerializeField] private Toggle       _screenShakeToggle;
 
+        [Header("语言")]
+        [SerializeField] private TMP_Dropdown _languageDropdown;  // 中文 / English / 日本語 / 한국어
+
         [Header("按键重绑定")]
         [SerializeField] private GameObject _rebindPanelRoot;  // RebindPanel GameObject
 
         private static readonly int[] FpsOptions = { 30, 60, 120, -1 };
 
-        private void OnEnable()
+        // 语言下拉项顺序（与脚手架填充的显示项一一对应）
+        private static readonly Language[] LanguageOptions =
+            { Language.ChineseSimplified, Language.English, Language.Japanese, Language.Korean };
+
+        protected override void OnPanelOpen()
         {
             _settings = ServiceLocator.GetOrDefault<ISettingsService>();
             if (_settings == null) return;
@@ -95,8 +103,18 @@ namespace BaseGames.UI
                 _screenShakeToggle.onValueChanged.AddListener(v => _settings.SetScreenShakeEnabled(v));
             }
 
-            // 手柄导航：打开设置面板时将焦点置于主音量滑条
-            EventSystem.current?.SetSelectedGameObject(_masterVolume?.gameObject);
+            // ── 语言 ──────────────────────────────────────────────────────────
+            if (_languageDropdown != null)
+            {
+                _languageDropdown.onValueChanged.RemoveAllListeners();
+                var loc = ServiceLocator.GetOrDefault<ILocalizationService>();
+                int idx = loc != null ? System.Array.IndexOf(LanguageOptions, loc.CurrentLanguage) : 0;
+                _languageDropdown.value = idx >= 0 ? idx : 0;
+                _languageDropdown.RefreshShownValue();
+                _languageDropdown.onValueChanged.AddListener(i =>
+                    ServiceLocator.GetOrDefault<ILocalizationService>()?
+                        .SetLanguage(LanguageOptions[Mathf.Clamp(i, 0, LanguageOptions.Length - 1)]));
+            }
         }
 
         private void UpdateUIScaleLabel(float v)
@@ -115,10 +133,10 @@ namespace BaseGames.UI
             slider.onValueChanged.AddListener(onChange);
         }
 
-        // ── IFocusable ────────────────────────────────────────────────────────
+        // ── 焦点 ──────────────────────────────────────────────────────────────
 
-        /// <summary>面板恢复为栈顶时将焦点移回主音量滑条。</summary>
-        public void OnFocusRestored()
-            => EventSystem.current?.SetSelectedGameObject(_masterVolume?.gameObject);
+        /// <summary>默认焦点 / 焦点恢复回到主音量滑条（基类 FocusFirst 调用）。</summary>
+        protected override GameObject ResolveFirstSelected()
+            => _masterVolume != null ? _masterVolume.gameObject : null;
     }
 }