wpftoolkit/ExtendedWPFToolkitSolution_35/Src/Xceed.Wpf.Toolkit/WatermarkTextBox/Implementation/WatermarkTextBox.cs

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

   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;
using System.Windows.Input;
using System;

namespace Xceed.Wpf.Toolkit
{
#pragma warning disable 0618

  public class WatermarkTextBox : AutoSelectTextBox
  {
    #region Properties

    #region SelectAllOnGotFocus (Obsolete)

    [Obsolete( "This property is obsolete and should no longer be used. Use AutoSelectTextBox.AutoSelectBehavior instead." )]
    public static readonly DependencyProperty SelectAllOnGotFocusProperty = DependencyProperty.Register( "SelectAllOnGotFocus", typeof( bool ), typeof( WatermarkTextBox ), new PropertyMetadata( false ) );
    [Obsolete( "This property is obsolete and should no longer be used. Use AutoSelectTextBox.AutoSelectBehavior instead." )]
    public bool SelectAllOnGotFocus
    {
      get
      {
        return ( bool )GetValue( SelectAllOnGotFocusProperty );
      }
      set
      {
        SetValue( SelectAllOnGotFocusProperty, value );
      }
    }

    #endregion //SelectAllOnGotFocus

    #region KeepWatermarkOnGotFocus

    public static readonly DependencyProperty KeepWatermarkOnGotFocusProperty = DependencyProperty.Register( "KeepWatermarkOnGotFocus", typeof( bool ), typeof( WatermarkTextBox ), new UIPropertyMetadata( false ) );
    public bool KeepWatermarkOnGotFocus
    {
      get
      {
        return ( bool )GetValue( KeepWatermarkOnGotFocusProperty );
      }
      set
      {
        SetValue( KeepWatermarkOnGotFocusProperty, value );
      }
    }

    #endregion //KeepWatermarkOnGotFocus

    #region Watermark

    public static readonly DependencyProperty WatermarkProperty = DependencyProperty.Register( "Watermark", typeof( object ), typeof( WatermarkTextBox ), new UIPropertyMetadata( null ) );
    public object Watermark
    {
      get
      {
        return ( object )GetValue( WatermarkProperty );
      }
      set
      {
        SetValue( WatermarkProperty, value );
      }
    }

    #endregion //Watermark

    #region WatermarkTemplate

    public static readonly DependencyProperty WatermarkTemplateProperty = DependencyProperty.Register( "WatermarkTemplate", typeof( DataTemplate ), typeof( WatermarkTextBox ), new UIPropertyMetadata( null ) );
    public DataTemplate WatermarkTemplate
    {
      get
      {
        return ( DataTemplate )GetValue( WatermarkTemplateProperty );
      }
      set
      {
        SetValue( WatermarkTemplateProperty, value );
      }
    }

    #endregion //WatermarkTemplate

    #endregion //Properties

    #region Constructors

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

    #endregion //Constructors

    #region Base Class Overrides

    protected override void OnGotFocus( RoutedEventArgs e )
    {
      base.OnGotFocus( e );

      if( SelectAllOnGotFocus )
        SelectAll();
    }

    protected override void OnPreviewMouseLeftButtonDown( MouseButtonEventArgs e )
    {
      if( !IsKeyboardFocused && SelectAllOnGotFocus )
      {
        e.Handled = true;
        Focus();
      }

      base.OnPreviewMouseLeftButtonDown( e ); //Focus AutoSelectTextBox and eat the event
    }

    #endregion //Base Class Overrides
  }

#pragma warning restore 0618
}