109 lines
2.9 KiB
C#
109 lines
2.9 KiB
C#
using System;
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using System.Collections;
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using System.Collections.Generic;
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using System.Linq;
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using System.Reflection;
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using UnityEngine;
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using UnityEngine.UIElements;
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namespace BITKit.UX
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{
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[AttributeUsage(AttributeTargets.Field | AttributeTargets.Property)]
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public class UXBindPathAttribute : Attribute
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{
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public string Path;
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public bool CanBeNull;
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public UXBindPathAttribute()
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{
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}
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public UXBindPathAttribute(string path)
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{
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Path = path;
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}
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public UXBindPathAttribute(string path, bool canBeNull)
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{
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Path = path;
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CanBeNull = canBeNull;
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}
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}
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public class UXUtils
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{
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public static void Inject(object self,VisualElement root=null)
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{
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UIDocument document = null;
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var field = self.GetType().GetField("document",
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BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic);
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var rootVisualElementFieldInfo = self.GetType().GetField("RootVisualElement",
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BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic);
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var rootVisualElementPropertyInfo = self.GetType().GetProperty("RootVisualElement",
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BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic);
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var rootVisualElement = (rootVisualElementFieldInfo, rootVisualElementPropertyInfo) switch
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{
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{ } when rootVisualElementPropertyInfo?.GetValue(self) is VisualElement ve => ve,
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{ } when rootVisualElementFieldInfo?.GetValue(self) is VisualElement ve => ve,
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_ => root,
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};
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if (rootVisualElement is not null)
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{
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}
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else
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{
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switch (field)
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{
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case null when self is MonoBehaviour monoBehaviour &&
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monoBehaviour.TryGetComponent<UIDocument>(out document):
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break;
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case not null when field.GetValue(self) is UIDocument _document:
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document = _document;
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break;
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default:
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BIT4Log.Warning<UXUtils>($"document 未赋值或未找到@{self.GetType().Name}");
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return;
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}
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}
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foreach (var fieldInfo in self.GetType()
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.GetFields(BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic)
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.Where(x => x.GetCustomAttribute<UXBindPathAttribute>() is not null)
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)
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{
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var bindPathAtt = fieldInfo.GetCustomAttribute<UXBindPathAttribute>();
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VisualElement ve = (document, rootVisualElement) switch
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{
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(_, not null) => rootVisualElement,
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(not null, _) => document.rootVisualElement,
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_ => throw new NotImplementedException(),
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};
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foreach (var path in bindPathAtt.Path.Split("."))
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{
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ve = ve.Q(path);
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}
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//ve = document.rootVisualElement.Q(bindPathAtt.Path);
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if (bindPathAtt.CanBeNull is false && ve is null)
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BIT4Log.LogException(new NullReferenceException($"{self.GetType().Name},{rootVisualElement.name}上未找到{bindPathAtt.Path}"));
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try
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{
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fieldInfo.SetValue(self, ve);
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}
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catch (Exception e)
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{
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BIT4Log.Warning<UXUtils>(fieldInfo!.Name);
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}
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}
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}
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}
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}
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