/*************************************************************************************

   Extended WPF Toolkit

   Copyright (C) 2007-2013 Xceed Software Inc.

   This program is provided to you under the terms of the Microsoft Public
   License (Ms-PL) as published at http://wpftoolkit.codeplex.com/license 

   For more features, controls, and fast professional support,
   pick up the Plus Edition at http://xceed.com/wpf_toolkit

   Stay informed: follow @datagrid on Twitter or Like http://facebook.com/datagrids

  ***********************************************************************************/

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows.Controls;
using System.Windows;

namespace Xceed.Wpf.Toolkit.PropertyGrid
{
  /// <summary>
  /// This Control is intended to be used in the template of the 
  /// PropertyItemBase and PropertyGrid classes to contain the
  /// sub-children properties.
  /// </summary>
  public class PropertyItemsControl : ItemsControl
  {

    #region PreparePropertyItemEvent Attached Routed Event

    internal static readonly RoutedEvent PreparePropertyItemEvent = EventManager.RegisterRoutedEvent( "PreparePropertyItem", RoutingStrategy.Bubble, typeof( PropertyItemEventHandler ), typeof( PropertyItemsControl ) );
    internal event PropertyItemEventHandler PreparePropertyItem
    {
      add
      {
        AddHandler( PropertyItemsControl.PreparePropertyItemEvent, value );
      }
      remove
      {
        RemoveHandler( PropertyItemsControl.PreparePropertyItemEvent, value );
      }
    }

    private void RaisePreparePropertyItemEvent( PropertyItemBase propertyItem, object item )
    {
      this.RaiseEvent( new PropertyItemEventArgs( PropertyItemsControl.PreparePropertyItemEvent, this, propertyItem, item ) );
    }

    #endregion

    #region ClearPropertyItemEvent Attached Routed Event

    internal static readonly RoutedEvent ClearPropertyItemEvent = EventManager.RegisterRoutedEvent( "ClearPropertyItem", RoutingStrategy.Bubble, typeof( PropertyItemEventHandler ), typeof( PropertyItemsControl ) );
    internal event PropertyItemEventHandler ClearPropertyItem
    {
      add
      {
        AddHandler( PropertyItemsControl.ClearPropertyItemEvent, value );
      }
      remove
      {
        RemoveHandler( PropertyItemsControl.ClearPropertyItemEvent, value );
      }
    }

    private void RaiseClearPropertyItemEvent( PropertyItemBase propertyItem, object item )
    {
      this.RaiseEvent( new PropertyItemEventArgs( PropertyItemsControl.ClearPropertyItemEvent, this, propertyItem, item ) );
    }

    #endregion

    protected override bool IsItemItsOwnContainerOverride( object item )
    {
      return ( item is PropertyItemBase );
    }


    protected override void PrepareContainerForItemOverride( DependencyObject element, object item )
    {
      base.PrepareContainerForItemOverride( element, item );
      this.RaisePreparePropertyItemEvent( ( PropertyItemBase )element, item );
    }

    protected override void ClearContainerForItemOverride( DependencyObject element, object item )
    {
      this.RaiseClearPropertyItemEvent( ( PropertyItemBase )element, item );
      base.ClearContainerForItemOverride( element, item );
    }
  }
}