public PropertyMountPoint(object origin, PropertyPath propertyPath)
{
Guard.ThrowIfNull(origin, nameof(origin));
Guard.ThrowIfNull(propertyPath, nameof(propertyPath));
this.referencedTargettedProperty = GetReferencedPropertyInfo(origin, propertyPath, 0);
}
private IEnumerable<PropertyDefinition> GetSubscriptionsRecursive(object current, PropertyPath propertyPath, int i)
{
var subscriptions = new List<PropertyDefinition>();
var inpc = current as INotifyPropertyChanged;
if (inpc == null)
{
return subscriptions;
}
var nextPropertyName = propertyPath.Chunks[i];
subscriptions.Add(new PropertyDefinition(inpc, nextPropertyName));
if (i < _propertyPath.Chunks.Length)
{
var currentObjectTypeInfo = current.GetType().GetTypeInfo();
var nextProperty = currentObjectTypeInfo.GetDeclaredProperty(nextPropertyName);
var nextInstance = nextProperty.GetValue(current);
if (i < _propertyPath.Chunks.Length - 1)
{
subscriptions.AddRange(GetSubscriptionsRecursive(nextInstance, propertyPath, i + 1));
}
}
return subscriptions;
}
public XamlBindingDefinition(Control target, PerspexProperty targetProperty, PropertyPath sourcePropertyPath, BindingMode bindingMode)
{
_target = target;
_targetProperty = targetProperty;
_sourcePropertyPath = sourcePropertyPath;
_bindingMode = bindingMode;
}
public ObservablePropertyBranch(object root, PropertyPath propertyPath)
{
Guard.ThrowIfNull(root, nameof(root));
Guard.ThrowIfNull(propertyPath, nameof(propertyPath));
this.root = root;
this.propertyPath = propertyPath;
this.mountPoint = new PropertyMountPoint(root, propertyPath);
var subscriptions = this.GetInpcNodes();
this.Changed = this.CreateObservableFromNodes(subscriptions);
}
public ObservablePropertyBranch(object instance, PropertyPath propertyPath)
{
Guard.ThrowIfNull(instance, nameof(instance));
Guard.ThrowIfNull(propertyPath, nameof(propertyPath));
_instance = instance;
_propertyPath = propertyPath;
_mountPoint = new PropertyMountPoint(instance, propertyPath);
var properties = GetPropertiesThatRaiseNotifications();
Values = CreateUnifiedObservableFromNodes(properties);
}
private static TargettedProperty GetReferencedPropertyInfo(object current, PropertyPath propertyPath, int level)
{
var typeInfo = current.GetType().GetTypeInfo();
var leftPropertyInfo = typeInfo.GetDeclaredProperty(propertyPath.Chunks[level]);
if (level == propertyPath.Chunks.Length - 1)
{
return new TargettedProperty(current, leftPropertyInfo);
}
var nextInstance = leftPropertyInfo.GetValue(current);
return GetReferencedPropertyInfo(nextInstance, propertyPath, level + 1);
}
public BindingSource(PropertyPath sourcePropertyPath, object source)
{
_sourcePropertyPath = sourcePropertyPath;
_source = source;
}
public BindingDefinitionBuilder()
{
_bindingMode = BindingMode.Default;
_sourcePropertyPath = new PropertyPath(string.Empty);
}
