131 lines
4.2 KiB
C#
131 lines
4.2 KiB
C#
using System.Collections.Generic;
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using System;
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using System.Linq;
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using UnityEngine;
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namespace XericUI.ReflectionUIGenerator
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{
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/// <summary>
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/// Dropdown 值组件 — 处理 string / int / enum 类型的下拉选择交互
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/// 预设选项来源：元数据的 PresetOptions 或 enum 类型的枚举名
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/// </summary>
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[AddComponentMenu("Xeric Library/UI Action Vessel/Values/XUIAvrgMDDropdownValue")]
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public class XUIAvrgMDDropdownValue : XUIAvrgMDValue
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{
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[SerializeField]
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[Tooltip("关联的 Dropdown 组件（未设置则自动查找）")]
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#if dUI_TextMeshPro
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private TMPro.TMP_Dropdown _dropdown;
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#else
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private Dropdown _dropdown;
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#endif
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private List<string> _options;
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private void Awake()
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{
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#if dUI_TextMeshPro
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if (_dropdown == null) _dropdown = GetComponent<TMPro.TMP_Dropdown>();
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#else
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if (_dropdown == null) _dropdown = GetComponent<Dropdown>();
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#endif
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}
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// ============ 对象池生命周期 ============
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public override void OnPoolGet(AvrgMemberMetaData metaData)
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{
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base.OnPoolGet(metaData);
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_options = BuildOptions(metaData?.ValueType);
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}
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public override void OnPoolRelease()
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{
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if (_dropdown != null)
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_dropdown.onValueChanged.RemoveAllListeners();
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_options = null;
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base.OnPoolRelease();
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}
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// ============ 核心绑定 ============
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public override void BindToAccessor(
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IAvrgValueAccessor accessor,
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AvrgMvvmBinding binding,
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AvrgMvvmScheduler scheduler)
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{
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CurrentAccessor = accessor;
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CurrentBinding = binding;
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if (binding == null || accessor == null || _dropdown == null) return;
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// 填充选项
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_dropdown.ClearOptions();
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_dropdown.AddOptions(_options);
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// UI → 数据
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_dropdown.onValueChanged.AddListener(index =>
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{
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if (index >= 0 && index < _options.Count)
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{
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object convertedVal = ConvertOptionToValue(_options[index], accessor.ValueType);
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binding.WriteFromUI(convertedVal);
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scheduler?.MarkUIDirty(binding);
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}
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});
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// 数据 → UI（带验证状态）
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binding.OnUIDataChanged += (value, state) =>
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{
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int idx = FindOptionIndex(value);
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if (idx >= 0)
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_dropdown.SetValueWithoutNotify(idx);
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base.UpdateValueDisplay(value, state);
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};
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// 验证状态变更
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binding.OnValidationStateChanged += OnValidationStateChanged;
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// 首次同步
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var initialValue = accessor.GetValue();
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int initialIdx = FindOptionIndex(initialValue);
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if (initialIdx >= 0)
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_dropdown.SetValueWithoutNotify(initialIdx);
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UpdateValueDisplay(initialValue, ValidationState.Normal);
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}
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private List<string> BuildOptions(Type valueType)
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{
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if (BoundMetaData?.PresetOptions != null && BoundMetaData.PresetOptions.Count > 0)
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return BoundMetaData.PresetOptions.ToList();
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if (valueType != null && valueType.IsEnum)
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return Enum.GetNames(valueType).ToList();
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return new List<string>();
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}
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private int FindOptionIndex(object value)
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{
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if (value == null || _options == null || _options.Count == 0) return -1;
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string valueStr = value.ToString();
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for (int i = 0; i < _options.Count; i++)
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{
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if (_options[i] == valueStr) return i;
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}
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return -1;
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}
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private static object ConvertOptionToValue(string option, Type targetType)
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{
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if (targetType == typeof(string)) return option;
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if (targetType == typeof(int) && int.TryParse(option, out int intVal)) return intVal;
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if (targetType != null && targetType.IsEnum)
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return Enum.Parse(targetType, option);
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return option;
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}
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}
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}
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