xenadmin/XenAdmin/Commands/DragDropRemoveHostFromPoolCommand.cs

/* Copyright (c) Citrix Systems, Inc. 
 * All rights reserved. 
 * 
 * Redistribution and use in source and binary forms, 
 * with or without modification, are permitted provided 
 * that the following conditions are met: 
 * 
 * *   Redistributions of source code must retain the above 
 *     copyright notice, this list of conditions and the 
 *     following disclaimer. 
 * *   Redistributions in binary form must reproduce the above 
 *     copyright notice, this list of conditions and the 
 *     following disclaimer in the documentation and/or other 
 *     materials provided with the distribution. 
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 
 * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, 
 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 
 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR 
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 
 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 
 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 
 * SUCH DAMAGE.
 */

using System;
using System.Collections.Generic;
using System.Text;
using XenAdmin.Controls;
using XenAPI;
using XenAdmin.Core;
using System.Collections.ObjectModel;
using System.Windows.Forms;

namespace XenAdmin.Commands
{
    internal class DragDropRemoveHostFromPoolCommand : DragDropCommand
    {
        public DragDropRemoveHostFromPoolCommand(IMainWindow mainWindow, VirtualTreeNode targetNode, IDataObject dragData)
            : base(mainWindow, targetNode, dragData)
        {
        }

        protected override bool CanExecuteCore()
        {
            List<Host> draggedHosts = GetDraggedItemsAsXenObjects<Host>();

            // user must drag to XenCenter Node
            if (draggedHosts.Count > 0 && TargetNode != null && TargetNode.Tag == null)
            {
                return new RemoveHostFromPoolCommand(MainWindowCommandInterface, draggedHosts).CanExecute();
            }
            return false;
        }

        protected override void ExecuteCore()
        {
            new RemoveHostFromPoolCommand(MainWindowCommandInterface, GetDraggedItemsAsXenObjects<Host>()).Execute();
        }
    }
}