// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
 
using System;
using System.Composition;
using Microsoft.CodeAnalysis.Host;
using Microsoft.CodeAnalysis.Host.Mef;
 
namespace Microsoft.CodeAnalysis.Editor.StringCopyPaste;
 
internal interface IStringCopyPasteService : IWorkspaceService
{
    bool TrySetClipboardData(string key, string data);
    string? TryGetClipboardData(string key);
}
 
[ExportWorkspaceService(typeof(IStringCopyPasteService)), Shared]
internal class DefaultStringCopyPasteService : IStringCopyPasteService
{
    [ImportingConstructor]
    [Obsolete(MefConstruction.ImportingConstructorMessage, error: true)]
    public DefaultStringCopyPasteService()
    {
    }
 
    // Note: we very intentionally do not try to store/retrieve any data in this default implementation. at this
    // layer we have no information about the clipboard, so it would be dangerous to presume that that information
    // had been validly associated with latest clipboard operation and had not been affected by things outside our
    // awareness.
 
    public bool TrySetClipboardData(string key, string data)
        => false;
 
    public string? TryGetClipboardData(string key)
        => null;
}