First round of dead file removal

obsolete/Microsoft.VisualStudio.Project/SelectionListener.cs

-/// Copyright (c) Microsoft Corporation.  All rights reserved.
-
-using System;
-using System.Diagnostics;
-using Microsoft.VisualStudio;
-using Microsoft.VisualStudio.Shell;
-using Microsoft.VisualStudio.Shell.Interop;
-using ShellConstants = Microsoft.VisualStudio.Shell.Interop.Constants;
-
-namespace Microsoft.VisualStudio.Project
-{
-
-        [CLSCompliant(false)]
-        public abstract class SelectionListener : IVsSelectionEvents, IDisposable
-        {
-                #region fields
-                private uint eventsCookie;
-                private IVsMonitorSelection monSel;
-                private ServiceProvider serviceProvider;
-                private bool isDisposed;
-                /// <summary>
-                /// Defines an object that will be a mutex for this object for synchronizing thread calls.
-                /// </summary>
-                private static volatile object Mutex = new object();
-                #endregion
-
-                #region ctors
-                protected SelectionListener(ServiceProvider serviceProvider)
-                {
-
-                        this.serviceProvider = serviceProvider;
-                        this.monSel = serviceProvider.GetService(typeof(SVsShellMonitorSelection)) as IVsMonitorSelection;
-
-                        if(this.monSel == null)
-                        {
-                                throw new InvalidOperationException();
-                        }
-                }
-                #endregion
-
-                #region properties
-                protected uint EventsCookie
-                {
-                        get
-                        {
-                                return this.eventsCookie;
-                        }
-                }
-
-                protected IVsMonitorSelection SelectionMonitor
-                {
-                        get
-                        {
-                                return this.monSel;
-                        }
-                }
-
-                protected ServiceProvider ServiceProvider
-                {
-                        get
-                        {
-                                return this.serviceProvider;
-                        }
-                }
-                #endregion
-
-                #region IVsSelectionEvents Members
-
-                public virtual int OnCmdUIContextChanged(uint dwCmdUICookie, int fActive)
-                {
-                        return VSConstants.E_NOTIMPL;
-                }
-
-                public virtual int OnElementValueChanged(uint elementid, object varValueOld, object varValueNew)
-                {
-                        return VSConstants.E_NOTIMPL;
-                }
-
-                public virtual int OnSelectionChanged(IVsHierarchy pHierOld, uint itemidOld, IVsMultiItemSelect pMISOld, ISelectionContainer pSCOld, IVsHierarchy pHierNew, uint itemidNew, IVsMultiItemSelect pMISNew, ISelectionContainer pSCNew)
-                {
-                        return VSConstants.E_NOTIMPL;
-                }
-
-                #endregion
-
-                #region IDisposable Members
-                /// <summary>
-                /// The IDispose interface Dispose method for disposing the object determinastically.
-                /// </summary>
-                public void Dispose()
-                {
-                        this.Dispose(true);
-                        GC.SuppressFinalize(this);
-                }
-                #endregion
-
-                #region methods
-                public void Init()
-                {
-                        if(this.SelectionMonitor != null)
-                        {
-                                ErrorHandler.ThrowOnFailure(this.SelectionMonitor.AdviseSelectionEvents(this, out this.eventsCookie));
-                        }
-                }
-
-                /// <summary>
-                /// The method that does the cleanup.
-                /// </summary>
-                /// <param name="disposing"></param>
-                [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Usage", "CA1806:DoNotIgnoreMethodResults", MessageId = "Microsoft.VisualStudio.Shell.Interop.IVsMonitorSelection.UnadviseSelectionEvents(System.UInt32)")]
-                protected virtual void Dispose(bool disposing)
-                {
-                        // Everybody can go here.
-                        if(!this.isDisposed)
-                        {
-                                // Synchronize calls to the Dispose simulteniously.
-                                lock(Mutex)
-                                {
-                                        if(disposing && this.eventsCookie != (uint)ShellConstants.VSCOOKIE_NIL && this.SelectionMonitor != null)
-                                        {
-                                                this.SelectionMonitor.UnadviseSelectionEvents((uint)this.eventsCookie);
-                                                this.eventsCookie = (uint)ShellConstants.VSCOOKIE_NIL;
-                                        }
-
-                                        this.isDisposed = true;
-                                }
-                        }
-                }
-                #endregion
-
-        }
-}