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2021-09-20 18:20:01 +02:00
/*
Copyright (C) 2014-2019 de4dot@gmail.com
This file is part of dnSpy
dnSpy is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
dnSpy is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with dnSpy. If not, see <http://www.gnu.org/licenses/>.
*/
using System;
using System.Collections.Generic;
using System.ComponentModel.Composition;
namespace dnSpy.Contracts.Extension {
/// <summary>
/// All extensions should export exactly one type that implements this interface. Use
/// <see cref="ExportExtensionAttribute"/> to export a extension.
/// </summary>
public interface IExtension {
/// <summary>
/// Called at various times
/// </summary>
/// <param name="event">Event</param>
/// <param name="obj">Data, see <see cref="ExtensionEvent"/></param>
void OnEvent(ExtensionEvent @event, object? obj);
/// <summary>
/// Gets the <see cref="Extension.ExtensionInfo"/> instance
/// </summary>
ExtensionInfo ExtensionInfo { get; }
/// <summary>
/// Gets relative paths of all resource dictionaries that will be added to the app's resources
/// </summary>
IEnumerable<string> MergedResourceDictionaries { get; }
}
/// <summary>Metadata</summary>
public interface IExtensionMetadata {
/// <summary>See <see cref="ExportExtensionAttribute.Order"/></summary>
double Order { get; }
}
/// <summary>
/// Exports a <see cref="IExtension"/> instance
/// </summary>
[MetadataAttribute, AttributeUsage(AttributeTargets.Class, AllowMultiple = false)]
public sealed class ExportExtensionAttribute : ExportAttribute, IExtensionMetadata {
/// <summary>Constructor</summary>
public ExportExtensionAttribute()
: base(typeof(IExtension)) => Order = double.MaxValue;
/// <summary>
/// Order of this instance
/// </summary>
public double Order { get; set; }
}
}