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 * *   Redistributions of source code must retain the above 
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 *     following disclaimer. 
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 *     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 
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 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
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using System;
using System.Collections.Generic;
using System.Text;
using System.Windows.Forms;
using XenAdmin.Controls;
using XenAdmin.Network;
using XenAPI;
using XenAdmin.Actions;
using XenAdmin.Commands;

namespace XenAdmin.Dialogs
{
    public partial class MoveVirtualDiskDialog : XenDialogBase
    {
        private VDI vdi;

        /// <summary>
        /// Designer support only. Do not use.
        /// </summary>
        public MoveVirtualDiskDialog()
        {
            InitializeComponent();
        }

        protected MoveVirtualDiskDialog(IXenConnection connection): base(connection)
        {
            InitializeComponent();
        }

        public MoveVirtualDiskDialog(VDI vdi) : this(vdi.Connection)
        {
            this.vdi = vdi;
            srPicker1.SetUsageAsMovingVDI(new[] {vdi});
            srPicker1.SrHint.Visible = false;
            srPicker1.Connection = vdi.Connection;
            srPicker1.DiskSize = vdi.virtual_size;
            srPicker1.srListBox.Invalidate();
            srPicker1.selectDefaultSROrAny();
            SetupEventHandlers();
        }

        protected void SetupEventHandlers()
        {
            SRPicker.ItemSelectionNotNull += srPicker1_ItemSelectionNotNull;
            SRPicker.ItemSelectionNull += srPicker1_ItemSelectionNull;
            SRPicker.DoubleClickOnRow += SRPicker_DoubleClickOnRow;
        }

        protected SrPicker SRPicker
        {
            get { return srPicker1; }
        }

        private void srPicker1_ItemSelectionNull()
        {
            updateButtons();
        }

        private void srPicker1_ItemSelectionNotNull()
        {
            updateButtons();
        }

        void SRPicker_DoubleClickOnRow(object sender, EventArgs e)
        {
            if (buttonMove.Enabled)
                buttonMove.PerformClick();
        }

        private void updateButtons()
        {
            buttonMove.Enabled = srPicker1.SR != null;
        }

        protected virtual void buttonMove_Click(object sender, EventArgs e)
        {
            MoveVirtualDiskAction action = new MoveVirtualDiskAction(connection, vdi, srPicker1.SR);
            action.RunAsync();
            Close();
        }

        private void buttonCancel_Click(object sender, EventArgs e)
        {
            DialogResult = DialogResult.Cancel;
            Close();
        }

        internal static Command MoveMigrateCommand(IMainWindow mainWindow, IEnumerable<SelectedItem> selection)
        {
            MoveVirtualDiskCommand moveCmd = new MoveVirtualDiskCommand(mainWindow, selection);

            if (moveCmd.CanExecute())
                return moveCmd;

            return new MigrateVirtualDiskCommand(mainWindow, selection);
        }
    }
}