/// <summary>
/// Registers a direct <see cref="AvaloniaProperty"/>.
/// </summary>
/// <typeparam name="TOwner">The type of the class that is registering the property.</typeparam>
/// <typeparam name="TValue">The type of the property's value.</typeparam>
/// <param name="name">The name of the property.</param>
/// <param name="getter">Gets the current value of the property.</param>
/// <param name="setter">Sets the value of the property.</param>
/// <param name="unsetValue">
/// The value to use when the property is set to <see cref="AvaloniaProperty.UnsetValue"/>
/// </param>
/// <param name="defaultBindingMode">The default binding mode for the property.</param>
/// <returns>A <see cref="AvaloniaProperty{TValue}"/></returns>
public static DirectProperty <TOwner, TValue> RegisterDirect <TOwner, TValue>(
string name,
Func <TOwner, TValue> getter,
Action <TOwner, TValue> setter = null,
TValue unsetValue = default(TValue),
BindingMode defaultBindingMode = BindingMode.OneWay)
where TOwner : IAvaloniaObject
{
Contract.Requires <ArgumentNullException>(name != null);
var metadata = new DirectPropertyMetadata <TValue>(
unsetValue: unsetValue,
defaultBindingMode: defaultBindingMode);
var result = new DirectProperty <TOwner, TValue>(name, getter, setter, metadata);
AvaloniaPropertyRegistry.Instance.Register(typeof(TOwner), result);
return(result);
}
/// <summary>
/// Registers the direct property on another type.
/// </summary>
/// <typeparam name="TNewOwner">The type of the additional owner.</typeparam>
/// <param name="getter">Gets the current value of the property.</param>
/// <param name="setter">Sets the value of the property.</param>
/// <param name="unsetValue">
/// The value to use when the property is set to <see cref="AvaloniaProperty.UnsetValue"/>
/// </param>
/// <param name="defaultBindingMode">The default binding mode for the property.</param>
/// <param name="enableDataValidation">
/// Whether the property is interested in data validation.
/// </param>
/// <returns>The property.</returns>
public DirectProperty <TNewOwner, TValue> AddOwner <TNewOwner>(
Func <TNewOwner, TValue> getter,
Action <TNewOwner, TValue> setter = null,
TValue unsetValue = default(TValue),
BindingMode defaultBindingMode = BindingMode.OneWay,
bool enableDataValidation = false)
where TNewOwner : AvaloniaObject
{
var result = new DirectProperty <TNewOwner, TValue>(
this,
getter,
setter,
new DirectPropertyMetadata <TValue>(
unsetValue: unsetValue,
defaultBindingMode: defaultBindingMode,
enableDataValidation: enableDataValidation));
AvaloniaPropertyRegistry.Instance.Register(typeof(TNewOwner), result);
return(result);
}
/// <summary>
/// Registers the direct property on another type.
/// </summary>
/// <typeparam name="TNewOwner">The type of the additional owner.</typeparam>
/// <param name="getter">Gets the current value of the property.</param>
/// <param name="setter">Sets the value of the property.</param>
/// <param name="unsetValue">
/// The value to use when the property is set to <see cref="AvaloniaProperty.UnsetValue"/>
/// </param>
/// <param name="defaultBindingMode">The default binding mode for the property.</param>
/// <param name="enableDataValidation">
/// Whether the property is interested in data validation.
/// </param>
/// <returns>The property.</returns>
public DirectProperty <TNewOwner, TValue> AddOwnerWithDataValidation <TNewOwner>(
Func <TNewOwner, TValue> getter,
Action <TNewOwner, TValue> setter,
TValue unsetValue = default(TValue),
BindingMode defaultBindingMode = BindingMode.Default,
bool enableDataValidation = false)
where TNewOwner : AvaloniaObject
{
var metadata = new DirectPropertyMetadata <TValue>(
unsetValue: unsetValue,
defaultBindingMode: defaultBindingMode,
enableDataValidation: enableDataValidation);
metadata.Merge(GetMetadata <TOwner>(), this);
var result = new DirectProperty <TNewOwner, TValue>(
this,
getter,
setter,
metadata);
AvaloniaPropertyRegistry.Instance.Register(typeof(TNewOwner), result);
return(result);
}