xenadmin/XenAdmin/Commands/RemoveHostCrashDumpsCommand.cs

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using System;
using System.Collections.Generic;
using System.Text;
using XenAPI;
using System.Windows.Forms;
using XenAdmin.Dialogs.WarningDialogs;
using XenAdmin.Actions;
using System.Collections.ObjectModel;


namespace XenAdmin.Commands
{
    /// <summary>
    /// Removes the crash-dumps from the selected host.
    /// </summary>
    internal class RemoveHostCrashDumpsCommand : Command
    {
        /// <summary>
        /// Initializes a new instance of this Command. The parameter-less constructor is required if 
        /// this Command is to be attached to a ToolStrip menu item or button. It should not be used in any other scenario.
        /// </summary>
        public RemoveHostCrashDumpsCommand()
        {
        }

        public RemoveHostCrashDumpsCommand(IMainWindow mainWindow, IEnumerable<SelectedItem> selection)
            : base(mainWindow, selection)
        {
        }

        public RemoveHostCrashDumpsCommand(IMainWindow mainWindow, Host host)
            : base(mainWindow, host)
        {
        }

        protected override void ExecuteCore(SelectedItemCollection selection)
        {
            Host host = selection[0].HostAncestor;

            DialogResult result = new RemoveCrashDumpsWarningDialog(host).ShowDialog(Parent);

            if (result == DialogResult.OK)
            {
                new DestroyHostCrashDumpAction(host).RunAsync();
            }
        }

        protected override bool CanExecuteCore(SelectedItemCollection selection)
        {
            if (selection.Count == 1)
            {
                Host hostAncestor = selection[0].HostAncestor;
                return hostAncestor != null && hostAncestor.HasCrashDumps();
            }
            return false;
        }

        public override string MenuText
        {
            get
            {
                return Messages.MAINWINDOW_REMOVE_HOST_CRASHDUMPS;
            }
        }

        public override string ContextMenuText
        {
            get
            {
                return Messages.MAINWINDOW_REMOVE_HOST_CRASHDUMPS_CONTEXT_MENU;
            }
        }
    }
}