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| 1 /// Copyright (c) Microsoft Corporation. All rights reserved. | |
| 2 | |
| 3 using System; | |
| 4 using Microsoft.VisualStudio.Shell.Interop; | |
| 5 using ErrorHandler = Microsoft.VisualStudio.ErrorHandler; | |
| 6 | |
| 7 namespace Microsoft.VisualStudio.Project.Automation | |
| 8 { | |
| 9 /// <summary> | |
| 10 /// Helper class that handle the scope of an automation function. | |
| 11 /// It should be used inside a "using" directive to define the scope of
the | |
| 12 /// automation function and make sure that the ExitAutomation method is
called. | |
| 13 /// </summary> | |
| 14 internal class AutomationScope : IDisposable | |
| 15 { | |
| 16 private IVsExtensibility3 extensibility; | |
| 17 private bool inAutomation; | |
| 18 private static volatile object Mutex; | |
| 19 private bool isDisposed; | |
| 20 | |
| 21 /// <summary> | |
| 22 /// Initializes the <see cref="AutomationScope"/> class. | |
| 23 /// </summary> | |
| 24 [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Perf
ormance", "CA1810:InitializeReferenceTypeStaticFieldsInline")] | |
| 25 static AutomationScope() | |
| 26 { | |
| 27 Mutex = new object(); | |
| 28 } | |
| 29 | |
| 30 /// <summary> | |
| 31 /// Defines the beginning of the scope of an automation function
. This constuctor | |
| 32 /// calls EnterAutomationFunction to signal the Shell that the c
urrent function is | |
| 33 /// changing the status of the automation objects. | |
| 34 /// </summary> | |
| 35 public AutomationScope(IServiceProvider provider) | |
| 36 { | |
| 37 if(null == provider) | |
| 38 { | |
| 39 throw new ArgumentNullException("provider"); | |
| 40 } | |
| 41 extensibility = provider.GetService(typeof(EnvDTE.IVsExt
ensibility)) as IVsExtensibility3; | |
| 42 if(null == extensibility) | |
| 43 { | |
| 44 throw new InvalidOperationException(); | |
| 45 } | |
| 46 ErrorHandler.ThrowOnFailure(extensibility.EnterAutomatio
nFunction()); | |
| 47 inAutomation = true; | |
| 48 } | |
| 49 | |
| 50 /// <summary> | |
| 51 /// Ends the scope of the automation function. This function is
also called by the | |
| 52 /// Dispose method. | |
| 53 /// </summary> | |
| 54 public void ExitAutomation() | |
| 55 { | |
| 56 if(inAutomation) | |
| 57 { | |
| 58 ErrorHandler.ThrowOnFailure(extensibility.ExitAu
tomationFunction()); | |
| 59 inAutomation = false; | |
| 60 } | |
| 61 } | |
| 62 | |
| 63 /// <summary> | |
| 64 /// Gets the IVsExtensibility3 interface used in the automation
function. | |
| 65 /// </summary> | |
| 66 public IVsExtensibility3 Extensibility | |
| 67 { | |
| 68 get { return extensibility; } | |
| 69 } | |
| 70 | |
| 71 /// <summary> | |
| 72 /// Performs application-defined tasks associated with freeing,
releasing, or resetting unmanaged resources. | |
| 73 /// </summary> | |
| 74 public void Dispose() | |
| 75 { | |
| 76 this.Dispose(true); | |
| 77 GC.SuppressFinalize(this); | |
| 78 } | |
| 79 | |
| 80 #region IDisposable Members | |
| 81 private void Dispose(bool disposing) | |
| 82 { | |
| 83 if(!this.isDisposed) | |
| 84 { | |
| 85 lock(Mutex) | |
| 86 { | |
| 87 if(disposing) | |
| 88 { | |
| 89 ExitAutomation(); | |
| 90 } | |
| 91 | |
| 92 this.isDisposed = true; | |
| 93 } | |
| 94 } | |
| 95 } | |
| 96 #endregion | |
| 97 } | |
| 98 } | |
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Chromium Code Reviews
Issue 10928195:
First round of dead file removal (Closed)
Base URL: https://github.com/samclegg/nativeclient-sdk.git@master