93 lines
4.4 KiB
C#
93 lines
4.4 KiB
C#
/*
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*
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* (c) Copyright Ascensio System Limited 2010-2018
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*
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* This program is freeware. You can redistribute it and/or modify it under the terms of the GNU
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* General Public License (GPL) version 3 as published by the Free Software Foundation (https://www.gnu.org/copyleft/gpl.html).
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* In accordance with Section 7(a) of the GNU GPL its Section 15 shall be amended to the effect that
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* Ascensio System SIA expressly excludes the warranty of non-infringement of any third-party rights.
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*
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* THIS PROGRAM IS DISTRIBUTED WITHOUT ANY WARRANTY; WITHOUT EVEN THE IMPLIED WARRANTY OF MERCHANTABILITY OR
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* FITNESS FOR A PARTICULAR PURPOSE. For more details, see GNU GPL at https://www.gnu.org/copyleft/gpl.html
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*
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* You can contact Ascensio System SIA by email at sales@onlyoffice.com
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*
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* The interactive user interfaces in modified source and object code versions of ONLYOFFICE must display
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* Appropriate Legal Notices, as required under Section 5 of the GNU GPL version 3.
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*
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* Pursuant to Section 7 § 3(b) of the GNU GPL you must retain the original ONLYOFFICE logo which contains
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* relevant author attributions when distributing the software. If the display of the logo in its graphic
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* form is not reasonably feasible for technical reasons, you must include the words "Powered by ONLYOFFICE"
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* in every copy of the program you distribute.
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* Pursuant to Section 7 § 3(e) we decline to grant you any rights under trademark law for use of our trademarks.
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*
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*/
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using System;
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using System.Collections;
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using System.Collections.Generic;
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using System.ComponentModel;
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using System.Configuration;
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using System.Globalization;
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namespace ASC.Common.DependencyInjection
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{
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[TypeConverter(typeof(DictionaryElementTypeConverter))]
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public class DictionaryElementCollection : ConfigurationElementCollection<ListItemElement>
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{
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public DictionaryElementCollection()
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: base("item")
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{
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}
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private class DictionaryElementTypeConverter : TypeConverter
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{
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public override object ConvertTo(ITypeDescriptorContext context, CultureInfo culture, object value, System.Type destinationType)
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{
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var instantiableType = GetInstantiableType(destinationType);
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if (!(value is DictionaryElementCollection elementCollection) || !(instantiableType != null))
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return base.ConvertTo(context, culture, value, destinationType);
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var dictionary = (IDictionary)Activator.CreateInstance(instantiableType);
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var genericArguments = instantiableType.GetGenericArguments();
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foreach (var listItemElement in elementCollection)
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{
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if (string.IsNullOrEmpty(listItemElement.Key))
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throw new ConfigurationErrorsException("Key cannot be null in a dictionary element.");
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var compatibleType1 = TypeManipulation.ChangeToCompatibleType(listItemElement.Key, genericArguments[0], null);
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var compatibleType2 = TypeManipulation.ChangeToCompatibleType(listItemElement.Value, genericArguments[1], null);
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dictionary.Add(compatibleType1, compatibleType2);
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}
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return dictionary;
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}
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public override bool CanConvertTo(ITypeDescriptorContext context, System.Type destinationType)
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{
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return GetInstantiableType(destinationType) != null || base.CanConvertTo(context, destinationType);
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}
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private static Type GetInstantiableType(System.Type destinationType)
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{
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if (!typeof(IDictionary).IsAssignableFrom(destinationType) &&
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(!destinationType.IsGenericType ||
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!typeof(IDictionary<,>).IsAssignableFrom(destinationType.GetGenericTypeDefinition())))
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return null;
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Type[] typeArray1;
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if (!destinationType.IsGenericType)
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typeArray1 = new[]
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{
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typeof (string),
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typeof (object)
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};
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else
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typeArray1 = destinationType.GetGenericArguments();
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var typeArray2 = typeArray1;
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if (typeArray2.Length != 2)
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return null;
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var c = typeof(Dictionary<,>).MakeGenericType(typeArray2);
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return destinationType.IsAssignableFrom(c) ? c : null;
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}
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}
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}
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}
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