public void Unbind()
{
if (!IsBound)
{
return;
}
if (mode == BindingMode.OneWay || mode == BindingMode.TwoWay)
{
var notifyInterface = source as INotifyPropertyChanged;
if (notifyInterface != null)
{
// remove event handler
notifyInterface.PropertyChanged -= OnSourcePropertyChanged;
}
}
if (mode == BindingMode.OneWayToSource || mode == BindingMode.TwoWay)
{
var notifyInterface = target as INotifyPropertyChanged;
if (notifyInterface != null)
{
// remove event handler
notifyInterface.PropertyChanged -= OnTargetPropertyChanged;
}
}
ResetValue();
if ((flags & ControlFlags.AutoMatchConverter) != 0)
{
// clear converter
converter = null;
}
source = null;
sourceProperty = null;
}
public Binding(string sourcePath, object target, string targetPath, BindingMode mode, ConversionMode conversionMode, IValueConverter converter)
{
if (target == null)
{
Debug.LogError("target is null");
return;
}
if (string.IsNullOrEmpty(sourcePath))
{
Debug.LogError("sourcePath is null", target as UnityEngine.Object);
return;
}
if (string.IsNullOrEmpty(targetPath))
{
Debug.LogError("targetPath is null", target as UnityEngine.Object);
return;
}
// handle nested path
var bindingTarget = BindingUtility.GetBindingObject(target, targetPath);
var targetPropertyName = BindingUtility.GetPropertyName(targetPath);
var targetType = bindingTarget.GetType();
// get target property accessor
var targetProperty = TypeCache.Instance.GetPropertyAccessor(targetType, targetPropertyName);
if (targetProperty == null)
{
Debug.LogError(string.Format("Invalid target path {0}", targetPath), target as UnityEngine.Object);
return;
}
// check conversion mode
if (conversionMode == ConversionMode.Parameter && converter == null)
{
Debug.LogError("Converter is null", target as UnityEngine.Object);
return;
}
// set fields
this.mode = mode;
this.sourcePath = sourcePath;
this.sourcePropertyName = BindingUtility.GetPropertyName(sourcePath);
this.target = bindingTarget;
this.targetPath = targetPropertyName;
this.targetProperty = targetProperty;
// setup converter
if (conversionMode == ConversionMode.Parameter)
{
// use specified converter
this.converter = converter;
}
else if (conversionMode == ConversionMode.Automatic)
{
// set flag
flags = ControlFlags.AutoMatchConverter;
}
}
public void Bind(object source)
{
if (source == null)
{
throw new ArgumentNullException("source is null");
}
if (IsBound)
{
Unbind();
}
// handle nested property
var bindingSource = BindingUtility.GetBindingObject(source, sourcePath);
if (bindingSource == null)
{
Debug.LogError("bindingSource is null", target as UnityEngine.Object);
return;
}
// get property info
var sourceType = bindingSource.GetType();
var sourceProperty = TypeCache.Instance.GetPropertyAccessor(sourceType, sourcePropertyName);
if (sourceProperty == null)
{
Debug.LogError(string.Format("Invalid source path {0}", sourcePath), target as UnityEngine.Object);
return;
}
// set source
this.source = bindingSource;
this.sourceProperty = sourceProperty;
if (mode == BindingMode.OneWay || mode == BindingMode.TwoWay)
{
var notifyInterface = this.source as INotifyPropertyChanged;
if (notifyInterface != null)
{
// add event handler
notifyInterface.PropertyChanged += OnSourcePropertyChanged;
}
}
if (mode == BindingMode.OneWayToSource || mode == BindingMode.TwoWay)
{
var notifyInterface = this.target as INotifyPropertyChanged;
if (notifyInterface != null)
{
// add event handler
notifyInterface.PropertyChanged += OnTargetPropertyChanged;
}
}
if ((flags & ControlFlags.AutoMatchConverter) != 0)
{
// get converter
converter = ValueConverterProvider.Instance.MatchConverter(sourceProperty.PropertyType, targetProperty.PropertyType);
}
InitValue();
}
