Files
Umbraco-CMS/src/Umbraco.Core/PropertyEditors/ConfigurationFieldAttribute.cs
2018-01-24 11:44:44 +01:00

113 lines
4.3 KiB
C#

using System;
using Umbraco.Core.Exceptions;
namespace Umbraco.Core.PropertyEditors
{
/// <summary>
/// Marks a ConfigurationEditor property as a configuration field, and a class as a configuration field type.
/// </summary>
/// <remarks>Properties marked with this attribute are discovered as fields.</remarks>
[AttributeUsage(AttributeTargets.Property | AttributeTargets.Class)]
public class ConfigurationFieldAttribute : Attribute
{
private Type _type;
/// <summary>
/// Initializes a new instance of the <see cref="ConfigurationField"/> class.
/// </summary>
public ConfigurationFieldAttribute(Type type)
{
Type = type;
}
/// <summary>
/// Initializes a new instance of the <see cref="ConfigurationField"/> class.
/// </summary>
/// <param name="key">The unique identifier of the field.</param>
/// <param name="name">The friendly name of the field.</param>
/// <param name="view">The view to use to render the field editor.</param>
public ConfigurationFieldAttribute(string key, string name, string view)
{
if (string.IsNullOrWhiteSpace(key)) throw new ArgumentNullOrEmptyException(nameof(key));
Key = key;
if (string.IsNullOrWhiteSpace(name)) throw new ArgumentNullOrEmptyException(nameof(name));
Name = name;
if (string.IsNullOrWhiteSpace(view)) throw new ArgumentNullOrEmptyException(nameof(view));
View = view;
}
/// <summary>
/// Initializes a new instance of the <see cref="ConfigurationField"/> class.
/// </summary>
/// <param name="name">The friendly name of the field.</param>
/// <param name="view">The view to use to render the field editor.</param>
/// <remarks>When no key is specified, the <see cref="ConfigurationEditor"/> will derive a key
/// from the name of the property marked with this attribute.</remarks>
public ConfigurationFieldAttribute(string name, string view)
{
if (string.IsNullOrWhiteSpace(name)) throw new ArgumentNullOrEmptyException(nameof(name));
Name = name;
if (string.IsNullOrWhiteSpace(view)) throw new ArgumentNullOrEmptyException(nameof(view));
View = view;
}
/// <summary>
/// Gets or sets the key of the field.
/// </summary>
/// <remarks>When null or empty, the <see cref="ConfigurationEditor"/> should derive a key
/// from the name of the property marked with this attribute.</remarks>
public string Key { get; }
/// <summary>
/// Gets the friendly name of the field.
/// </summary>
public string Name { get; }
/// <summary>
/// Gets or sets the view to use to render the field editor.
/// </summary>
public string View { get; }
/// <summary>
/// Gets or sets the description of the field.
/// </summary>
public string Description { get; set; }
/// <summary>
/// Gets or sets a value indicating whether the field editor should be displayed without its label.
/// </summary>
public bool HideLabel
{
get => HideLabelSettable.ValueOrDefault(false);
set => HideLabelSettable.Set(value);
}
/// <summary>
/// Gets the settable underlying <see cref="HideLabel"/>.
/// </summary>
public Settable<bool> HideLabelSettable { get; } = new Settable<bool>();
/// <summary>
/// Gets or sets the type of the field.
/// </summary>
/// <remarks>
/// <para>By default, fields are created as <see cref="ConfigurationField"/> instances,
/// unless specified otherwise through this property.</para>
/// <para>The specified type must inherit from <see cref="ConfigurationField"/>.</para>
/// </remarks>
public Type Type
{
get => _type;
set
{
if (!typeof(ConfigurationField).IsAssignableFrom(value))
throw new ArgumentException("Type must inherit from ConfigurationField.", nameof(value));
_type = value;
}
}
}
}