Presentation Patterns for XAML based Applications

// -- FILE ------------------------------------------------------------------
// name       : CustomerAdminEditor.cs
// project    : Itenso Community
// created    : Jani Giannoudis - 2012.05.05
// language   : c#
// environment: .NET 4.0
// copyright  : (c) 2004-2012 by Itenso GmbH, Switzerland
// --------------------------------------------------------------------------
using System;
using System.Collections.Generic;
using System.Windows;
using Itenso.Community.XamlPatterns.Collection;
using Itenso.Community.XamlPatterns.Program.Presentation.ViewModel;
using Itenso.Community.XamlPatterns.Presentation;

namespace Itenso.Community.XamlPatterns.Program.Examples.CustomerAdmin.Editor
{

	// ------------------------------------------------------------------------
	public class CustomerAdminEditor : ItemCollectionEditor<ItemCollection<CustomerModel>, CustomerModel>
	{

		// ----------------------------------------------------------------------
		public CustomerAdminEditor( ItemCollection<CustomerModel> items, ViewSyncMode syncMode ) :
			base( items, syncMode )
		{
		} // CustomerAdminEditor

		// ----------------------------------------------------------------------
		public IEnumerable<ItemInsertMode> ItemInsertModes
		{
			get
			{
				return itemInsertModes ?? ( itemInsertModes = new List<ItemInsertMode>
				                                            {
				                                            	ItemInsertMode.Current,
																											ItemInsertMode.Next,
				                                            	ItemInsertMode.Append
				                                            } );
			}
		} // ItemInsertModes

		// ----------------------------------------------------------------------
		public ItemInsertMode InsertMode
		{
			get { return insertMode; }
			set
			{
				if ( value != insertMode )
				{
					insertMode = value;
					NotifyPropertyChanged( "InsertMode" );
				}
			}
		} // InsertMode

		// ----------------------------------------------------------------------
		protected override void UpdateCommands()
		{
			base.UpdateCommands();

			CanCreate = true;
			CanEdit = View.CurrentItem != null;
			CanDelete = View.CurrentItem != null;
		} // UpdateCommands

		// ----------------------------------------------------------------------
		public override void Create( Action onFinished )
		{
			CustomerModel newItem = new CustomerModel( "New First Name", "New LastName", "New Address", true, true );

			ItemInsertMode mode = InsertMode;
			if ( View.CurrentItem == null )
			{
				mode = ItemInsertMode.Append;
			}
			switch ( mode )
			{
				case ItemInsertMode.Current:
					Items.Insert( View.CurrentPosition, newItem );
					break;
				case ItemInsertMode.Next:
					Items.Insert( View.CurrentPosition + 1, newItem );
					break;
				case ItemInsertMode.Append:
					Items.Add( newItem );
					break;
			}

			MessageBox.Show(
				string.Format( "Customer created:\n{0} [{1}] at #{2}", newItem.LastName, newItem.LastModified, Items.IndexOf( newItem ) ),
				messageTitle,
				MessageBoxButton.OK );

			base.Create( onFinished );
		} // Create

		// ----------------------------------------------------------------------
		public override void Edit( Action onFinished )
		{
			DateTime oldLastModified = View.CurrentItem.LastModified;
			View.CurrentItem.LastModified = DateTime.Now;

			MessageBox.Show(
				string.Format( "Updated 'Last Modified'\n\nOld value: {0}\nNew value: {1}", oldLastModified, View.CurrentItem.LastModified ),
				messageTitle,
				MessageBoxButton.OK );

			base.Edit( onFinished );
		} // Edit

		// ----------------------------------------------------------------------
		public override void Delete( Action onFinished )
		{
			CustomerModel deleteItem = View.CurrentItem;

			if ( MessageBox.Show( "Delete " + deleteItem.LastName + "?", messageTitle, MessageBoxButton.OKCancel ) == MessageBoxResult.OK )
			{
				Items.Remove( deleteItem );

				MessageBox.Show(
					string.Format( "Customer deleted:\n{0} [{1}]", deleteItem.LastName, deleteItem.LastModified ),
					messageTitle,
					MessageBoxButton.OK );
			}

			base.Delete( onFinished );
		} // Delete

		// ----------------------------------------------------------------------
		private IEnumerable<ItemInsertMode> itemInsertModes;
		private ItemInsertMode insertMode;

		private const string messageTitle = "Customer Editor";

	} // class CustomerAdminEditor

} // namespace Itenso.Community.XamlPatterns.Program.Examples.CustomerAdmin.Editor
// -- EOF -------------------------------------------------------------------