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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
// Description: Focus event args class (Client Side)
namespace System.Windows.Automation
{
/// <summary>
/// Delegate to handle focus change events
/// </summary>
#if (INTERNAL_COMPILE)
internal delegate void AutomationFocusChangedEventHandler( object sender, AutomationFocusChangedEventArgs e );
#else
public delegate void AutomationFocusChangedEventHandler( object sender, AutomationFocusChangedEventArgs e );
#endif
// AutomationFocusChangedEventArgs has two distinct uses:
// - when used by provider code, it is basically a wrapper for the previous focus provider,
// which gets passed through as a parameter to the UiaCore API.
// - on the client side, it is used to deliver focus events to the client - these events
// may originate within the client via focus winevents, or may be the result of notifications
// from core. In both cases, the ClientApi code creates an instance of the args, with an
// AutomationElement indicating the previous focus.
/// <summary>
/// Focus event args class
/// </summary>
#if (INTERNAL_COMPILE)
internal class AutomationFocusChangedEventArgs : AutomationEventArgs
#else
public class AutomationFocusChangedEventArgs : AutomationEventArgs
#endif
{
//------------------------------------------------------
//
// Constructors
//
//------------------------------------------------------
#region Constructors
/// <summary>
/// Client-side constructor for focus event args.
/// </summary>
/// <param name="idObject">Indicates object id.</param>
/// <param name="idChild">Indicates id of the child.</param>
public AutomationFocusChangedEventArgs(int idObject, int idChild)
: base(AutomationElement.AutomationFocusChangedEvent)
{
_idObject = idObject;
_idChild = idChild;
}
#endregion Constructors
//------------------------------------------------------
//
// Public Properties
//
//------------------------------------------------------
#region Public Properties
/// <summary>
/// Returns the object id
/// </summary>
public int ObjectId
{
get
{
return _idObject;
}
}
/// <summary>
/// Returns the child id
/// </summary>
public int ChildId
{
get
{
return _idChild;
}
}
#endregion Public Properties
//------------------------------------------------------
//
// Private Fields
//
//------------------------------------------------------
#region Private Fields
private int _idObject; // needed for now to be able to go back to IAccessible for menus/dropdowns
private int _idChild; // needed for now to be able to go back to IAccessible for menus/dropdowns
#endregion Private Fields
}
}
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