SynchronizedInputAdaptor.cs source code in C# .NET

Source code for the .NET framework in C#

                        
Code:

                         / 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / wpf / src / Core / CSharp / MS / Internal / Automation / SynchronizedInputAdaptor.cs / 1305600 / SynchronizedInputAdaptor.cs
                        

                        
                            //---------------------------------------------------------------------------- 
//
// 
//    Copyright (C) Microsoft Corporation.  All rights reserved.
//  
//
// 
// Description: Synchronized Input pattern adaptor 
// History:
//  07/28/2009 : [....] - created 
//
//---------------------------------------------------------------------------
using System;
using System.Windows; 
using System.Windows.Automation;
using System.Windows.Automation.Provider; 
 
using MS.Internal;
using SR = MS.Internal.PresentationCore.SR; 
using SRID = MS.Internal.PresentationCore.SRID;

namespace MS.Internal.Automation
{ 
    /// 
    /// Represents a synchronized input provider that supports the synchronized input pattern across 
    /// UIElements, ContentElements and UIElement3D. 
    /// 
    internal class SynchronizedInputAdaptor : ISynchronizedInputProvider 
    {
        /// 
        /// Constructor
        ///  
        /// UIElement or ContentElement or UIElement3D this adaptor is associated with.
        internal SynchronizedInputAdaptor(DependencyObject owner) 
        { 
            Invariant.Assert(owner != null);
            _owner = owner; 
        }
        /// 
        /// This method is called by automation framework to trigger synchronized input processing.
        ///  
        ///  Synchronized input type
        void ISynchronizedInputProvider.StartListening(SynchronizedInputType inputType) 
        { 
            UIElement e = _owner as UIElement;
            if (e != null) 
            {
                if (!e.StartListeningSynchronizedInput(inputType))
                {
                    throw new InvalidOperationException(SR.Get(SRID.Automation_RecursivePublicCall)); 
                }
            } 
            else 
            {
                ContentElement ce = _owner as ContentElement; 
                if (ce != null)
                {
                    if (!ce.StartListeningSynchronizedInput(inputType))
                    { 
                        throw new InvalidOperationException(SR.Get(SRID.Automation_RecursivePublicCall));
                    } 
                } 
                else
                { 
                    UIElement3D e3D = (UIElement3D)_owner;
                    if (!e3D.StartListeningSynchronizedInput(inputType))
                    {
                        throw new InvalidOperationException(SR.Get(SRID.Automation_RecursivePublicCall)); 
                    }
 
                } 
            }
        } 

        ////
        /// Cancel synchronized input processing.
        /// 
        void ISynchronizedInputProvider.Cancel()
        { 
 
            UIElement e = _owner as UIElement;
            if (e != null) 
            {
                e.CancelSynchronizedInput();
            }
            else 
            {
                ContentElement ce = _owner as ContentElement; 
                if (ce != null) 
                {
                    ce.CancelSynchronizedInput(); 
                }
                else
                {
                    UIElement3D e3D = (UIElement3D)_owner; 
                    e3D.CancelSynchronizedInput();
                } 
            } 

 
        }

        private readonly DependencyObject _owner;
    } 

} 

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
// Copyright (c) Microsoft Corporation. All rights reserved.

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