75 lines
2.3 KiB
C#
75 lines
2.3 KiB
C#
|
using System;
|
|||
|
|
using System.Collections.Generic;
|
|||
|
|
using System.Linq;
|
|||
|
|
using System.Reflection;
|
|||
|
|
using System.Text;
|
|||
|
|
using uMVVM.Sources.Infrastructure;
|
|||
|
|
using UnityEditor;
|
|||
|
|
|
|||
|
|
namespace Assets.Sources.Core.DataBinding
|
|||
|
|
{
|
|||
|
|
public class PropertyBinder<T> where T:ViewModelBase
|
|||
|
|
{
|
|||
|
|
private delegate void BindHandler(T viewmodel);
|
|||
|
|
private delegate void UnBindHandler(T viewmodel);
|
|||
|
|
|
|||
|
|
private readonly List<BindHandler> _binders=new List<BindHandler>();
|
|||
|
|
private readonly List<UnBindHandler> _unbinders=new List<UnBindHandler>();
|
|||
|
|
|
|||
|
|
public void Add<TProperty>(string name,BindableProperty<TProperty>.ValueChangedHandler valueChangedHandler )
|
|||
|
|
{
|
|||
|
|
var fieldInfo = typeof(T).GetField(name, BindingFlags.Instance | BindingFlags.Public);
|
|||
|
|
if (fieldInfo == null)
|
|||
|
|
{
|
|||
|
|
throw new Exception(string.Format("Unable to find bindableproperty field '{0}.{1}'", typeof(T).Name, name));
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
_binders.Add(viewmodel =>
|
|||
|
|
{
|
|||
|
|
GetPropertyValue<TProperty>(name, viewmodel, fieldInfo).OnValueChanged += valueChangedHandler;
|
|||
|
|
});
|
|||
|
|
|
|||
|
|
_unbinders.Add(viewModel =>
|
|||
|
|
{
|
|||
|
|
GetPropertyValue<TProperty>(name, viewModel, fieldInfo).OnValueChanged -= valueChangedHandler;
|
|||
|
|
});
|
|||
|
|
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
private BindableProperty<TProperty> GetPropertyValue<TProperty>(string name, T viewModel,FieldInfo fieldInfo)
|
|||
|
|
{
|
|||
|
|
var value = fieldInfo.GetValue(viewModel);
|
|||
|
|
BindableProperty<TProperty> bindableProperty = value as BindableProperty<TProperty>;
|
|||
|
|
if (bindableProperty == null)
|
|||
|
|
{
|
|||
|
|
throw new Exception(string.Format("Illegal bindableproperty field '{0}.{1}' ", typeof(T).Name, name));
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
return bindableProperty;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
public void Bind(T viewmodel)
|
|||
|
|
{
|
|||
|
|
if (viewmodel!=null)
|
|||
|
|
{
|
|||
|
|
for (int i = 0; i < _binders.Count; i++)
|
|||
|
|
{
|
|||
|
|
_binders[i](viewmodel);
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
public void Unbind(T viewmodel)
|
|||
|
|
{
|
|||
|
|
if (viewmodel!=null)
|
|||
|
|
{
|
|||
|
|
for (int i = 0; i < _unbinders.Count; i++)
|
|||
|
|
{
|
|||
|
|
_unbinders[i](viewmodel);
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
}
|
|||
|
|
}
|