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

   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.Windows;
using System.Windows.Controls;

namespace Xceed.Wpf.Toolkit.Primitives
{
  public class SelectorItem : ContentControl
  {
    #region Constructors

    static SelectorItem()
    {
      DefaultStyleKeyProperty.OverrideMetadata( typeof( SelectorItem ), new FrameworkPropertyMetadata( typeof( SelectorItem ) ) );
    }

    #endregion //Constructors

    #region Properties

    public static readonly DependencyProperty IsSelectedProperty = DependencyProperty.Register( "IsSelected", typeof( bool? ), typeof( SelectorItem ), new UIPropertyMetadata( false, OnIsSelectedChanged ) );
    public bool? IsSelected
    {
      get
      {
        return ( bool? )GetValue( IsSelectedProperty );
      }
      set
      {
        SetValue( IsSelectedProperty, value );
      }
    }

    private static void OnIsSelectedChanged( DependencyObject o, DependencyPropertyChangedEventArgs e )
    {
      SelectorItem selectorItem = o as SelectorItem;
      if( selectorItem != null )
        selectorItem.OnIsSelectedChanged( ( bool? )e.OldValue, ( bool? )e.NewValue );
    }

    protected virtual void OnIsSelectedChanged( bool? oldValue, bool? newValue )
    {
      if( newValue.HasValue )
      {
        if( newValue.Value )
        {
          this.RaiseEvent( new RoutedEventArgs( Selector.SelectedEvent, this ) );
        }
        else
        {
          this.RaiseEvent( new RoutedEventArgs( Selector.UnSelectedEvent, this ) );
        }
      }
    }

    internal Selector ParentSelector
    {
      get
      {
        return ItemsControl.ItemsControlFromItemContainer( this ) as Selector;
      }
    }

    #endregion //Properties

    #region Events

    public static readonly RoutedEvent SelectedEvent = Selector.SelectedEvent.AddOwner( typeof( SelectorItem ) );
    public static readonly RoutedEvent UnselectedEvent = Selector.UnSelectedEvent.AddOwner( typeof( SelectorItem ) );

    #endregion
  }
}