XericUIActionVessel/Runtime/Core/StyleSheetUI/StyleSheetState.cs

using System;

using UnityEngine;

using XericLibrary.Runtime.SuperStyleSheet;

namespace XericUI.Core.StyleSheetUI
{
	/// <summary>
	/// 样式表驱动的 UI 交互状态块——仿 ColorBlock 设计。
	/// 集中管理 Normal/Highlighted/Pressed/Selected/Disabled 五种状态的 StyleField。
	/// </summary>
	[Serializable]
	public class StyleSheetState
	{
		private const string k_DefaultColorBasePath   = "/button/TargetGraphic/ColorTint";
		private const string k_DefaultTextureBasePath = "/button/TargetGraphic/SpriteState";
		private const string k_DefaultNamespace       = "default";

		#region 序列化字段

		[Header("五态样式路径")]
		[SerializeField]
		[Tooltip("正常状态")]
		private StyleField m_Normal = new StyleField { Namespace = k_DefaultNamespace, StylePath = k_DefaultColorBasePath + "/NormalColor" };

		[SerializeField]
		[Tooltip("高亮状态")]
		private StyleField m_Highlighted = new StyleField { Namespace = k_DefaultNamespace, StylePath = k_DefaultColorBasePath + "/HighlightedColor" };

		[SerializeField]
		[Tooltip("按下状态")]
		private StyleField m_Pressed = new StyleField { Namespace = k_DefaultNamespace, StylePath = k_DefaultColorBasePath + "/PressedColor" };

		[SerializeField]
		[Tooltip("选中状态")]
		private StyleField m_Selected = new StyleField { Namespace = k_DefaultNamespace, StylePath = k_DefaultColorBasePath + "/SelectedColor" };

		[SerializeField]
		[Tooltip("禁用状态")]
		private StyleField m_Disabled = new StyleField { Namespace = k_DefaultNamespace, StylePath = k_DefaultColorBasePath + "/DisabledColor" };

		[Header("过渡")]
		[SerializeField]
		[Range(0.001f, 1f)]
		[Tooltip("渐变持续时间")]
		private float m_FadeDuration = 0.1f;

		#endregion

		#region 公开属性

		public StyleField Normal => m_Normal;
		public StyleField Highlighted => m_Highlighted;
		public StyleField Pressed => m_Pressed;
		public StyleField Selected => m_Selected;
		public StyleField Disabled => m_Disabled;

		public float FadeDuration
		{
			get => m_FadeDuration;
			set => m_FadeDuration = value;
		}

		/// <summary>所有 StyleField</summary>
		public StyleField[] AllFields => new[]
		{
			m_Normal, m_Highlighted, m_Pressed, m_Selected, m_Disabled
		};

		/// <summary>默认实例（五态默认匹配 ColorTint 颜色块）</summary>
		public static StyleSheetState Default => new StyleSheetState();

		/// <summary>
		/// 创建纹理五态样式块，StylePath 默认匹配 SpriteState 块。
		/// </summary>
		public static StyleSheetState CreateTexture(string ns = k_DefaultNamespace)
		{
			var state = new StyleSheetState();
			state.Normal.StylePath      = k_DefaultTextureBasePath + "/NormalSprite";
			state.Highlighted.StylePath = k_DefaultTextureBasePath + "/HighlightedSprite";
			state.Pressed.StylePath     = k_DefaultTextureBasePath + "/PressedSprite";
			state.Selected.StylePath    = k_DefaultTextureBasePath + "/SelectedSprite";
			state.Disabled.StylePath    = k_DefaultTextureBasePath + "/DisabledSprite";
			foreach (var f in state.AllFields) f.Namespace = ns;
			return state;
		}

		#endregion

		#region 查找

		/// <summary>根据交互状态获取对应的 StyleField</summary>
		public StyleField GetForState(StyleSheetSelectionState state)
		{
			switch (state)
			{
				case StyleSheetSelectionState.Normal:      return m_Normal;
				case StyleSheetSelectionState.Highlighted: return m_Highlighted;
				case StyleSheetSelectionState.Pressed:     return m_Pressed;
				case StyleSheetSelectionState.Selected:    return m_Selected;
				case StyleSheetSelectionState.Disabled:    return m_Disabled;
				default:                                   return m_Normal;
			}
		}

		#endregion

		#region 注册 / 注销

		public void RegisterAll()
		{
			foreach (var f in AllFields) f?.Register();
		}

		public void UnregisterAll()
		{
			foreach (var f in AllFields) f?.Unregister();
		}

		public void SubscribeAll(Action<StyleValue> callback)
		{
			foreach (var f in AllFields) { if (f != null) f.Member.OnValueChanged += callback; }
		}

		public void UnsubscribeAll(Action<StyleValue> callback)
		{
			foreach (var f in AllFields) { if (f != null) f.Member.OnValueChanged -= callback; }
		}

		#endregion
	}
}