CloseAllReadOnlyCommand.cs

using EnvDTE;
using System.Linq;
using System.Threading.Tasks;

namespace SteveCadwallader.CodeMaid.Integration.Commands
{
    /// <summary>
    /// A command that provides for closing all read-only files.
    /// </summary>
    internal sealed class CloseAllReadOnlyCommand : BaseCommand
    {
        /// <summary>
        /// Initializes a new instance of the <see cref="CloseAllReadOnlyCommand" /> class.
        /// </summary>
        /// <param name="package">The hosting package.</param>
        internal CloseAllReadOnlyCommand(CodeMaidPackage package)
            : base(package, PackageGuids.GuidCodeMaidMenuSet, PackageIds.CmdIDCodeMaidCloseAllReadOnly)
        {
        }

        /// <summary>
        /// A singleton instance of this command.
        /// </summary>
        public static CloseAllReadOnlyCommand Instance { get; private set; }

        /// <summary>
        /// Initializes a singleton instance of this command.
        /// </summary>
        /// <param name="package">The hosting package.</param>
        /// <returns>A task.</returns>
        public static Task InitializeAsync(CodeMaidPackage package)
        {
            Instance = new CloseAllReadOnlyCommand(package);
            return package.SettingsMonitor.WatchAsync(s => s.Feature_CloseAllReadOnly, Instance.SwitchAsync);
        }

        /// <summary>
        /// Called to update the current status of the command.
        /// </summary>
        protected override void OnBeforeQueryStatus()
        {
            Enabled = Package.IDE.Documents.Cast<Document>().Any(x => x.ReadOnly && x.Saved);
        }

        /// <summary>
        /// Called to execute the command.
        /// </summary>
        protected override void OnExecute()
        {
            base.OnExecute();

            var docs = Package.IDE.Documents;

            foreach (Document doc in docs)
            {
                if (doc.ReadOnly && doc.Saved)
                {
                    doc.Close(vsSaveChanges.vsSaveChangesNo);
                }
            }
        }
    }
}