76 lines
2.1 KiB
C#
76 lines
2.1 KiB
C#
|
using System;
|
|||
|
|
using System.Collections;
|
|||
|
|
using System.Collections.Generic;
|
|||
|
|
|
|||
|
|
namespace Umbraco.Core.Models.PublishedContent
|
|||
|
|
{
|
|||
|
|
/// <summary>
|
|||
|
|
/// Manages the built-in fallback policies.
|
|||
|
|
/// </summary>
|
|||
|
|
public struct Fallback : IEnumerable<int>
|
|||
|
|
{
|
|||
|
|
private readonly int[] _values;
|
|||
|
|
|
|||
|
|
/// <summary>
|
|||
|
|
/// Initializes a new instance of the <see cref="Fallback"/> struct with values.
|
|||
|
|
/// </summary>
|
|||
|
|
private Fallback(int[] values)
|
|||
|
|
{
|
|||
|
|
_values = values;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/// <summary>
|
|||
|
|
/// Gets an ordered set of fallback policies.
|
|||
|
|
/// </summary>
|
|||
|
|
/// <param name="values"></param>
|
|||
|
|
public static Fallback To(params int[] values) => new Fallback(values);
|
|||
|
|
|
|||
|
|
/// <summary>
|
|||
|
|
/// Do not fallback.
|
|||
|
|
/// </summary>
|
|||
|
|
public const int None = 0;
|
|||
|
|
|
|||
|
|
/// <summary>
|
|||
|
|
/// Fallback to default value.
|
|||
|
|
/// </summary>
|
|||
|
|
public const int DefaultValue = 1;
|
|||
|
|
|
|||
|
|
/// <summary>
|
|||
|
|
/// Gets the fallback to default value policy.
|
|||
|
|
/// </summary>
|
|||
|
|
public static Fallback ToDefaultValue => new Fallback(new[] { DefaultValue });
|
|||
|
|
|
|||
|
|
/// <summary>
|
|||
|
|
/// Fallback to other languages.
|
|||
|
|
/// </summary>
|
|||
|
|
public const int Language = 2;
|
|||
|
|
|
|||
|
|
/// <summary>
|
|||
|
|
/// Gets the fallback to language policy.
|
|||
|
|
/// </summary>
|
|||
|
|
public static Fallback ToLanguage => new Fallback(new[] { Language });
|
|||
|
|
|
|||
|
|
/// <summary>
|
|||
|
|
/// Fallback to tree ancestors.
|
|||
|
|
/// </summary>
|
|||
|
|
public const int Ancestors = 3;
|
|||
|
|
|
|||
|
|
/// <summary>
|
|||
|
|
/// Gets the fallback to tree ancestors policy.
|
|||
|
|
/// </summary>
|
|||
|
|
public static Fallback ToAncestors => new Fallback(new[] { Ancestors });
|
|||
|
|
|
|||
|
|
/// <inheritdoc />
|
|||
|
|
public IEnumerator<int> GetEnumerator()
|
|||
|
|
{
|
|||
|
|
return ((IEnumerable<int>)_values ?? Array.Empty<int>()).GetEnumerator();
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/// <inheritdoc />
|
|||
|
|
IEnumerator IEnumerable.GetEnumerator()
|
|||
|
|
{
|
|||
|
|
return GetEnumerator();
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
}
|