public static void InitializeServices(Microsoft.VisualStudio.OLE.Interop.IServiceProvider oleProvider)
{
if (oleProvider == null)
{
throw new ArgumentNullException("oleProvider");
}
if (!servicesInitialized)
{
try
{
serviceProvider = new Microsoft.VisualStudio.Shell.ServiceProvider(oleProvider);
container = new System.ComponentModel.Design.ServiceContainer(serviceProvider);
componentHost = new VsShellComponentModelHost(oleProvider);
catalogProvider = new VsCatalogProvider(componentHost);
globalCatalog = catalogProvider.GetCatalog("Microsoft.VisualStudio.Default");
if (globalCatalog == null)
{
throw new InvalidOperationException("T4 Composition services initialization error: Failed to get default composition catalog.");
}
composition = VsCompositionContainer.Create(globalCatalog);
composition.ComposeExportedValue <SVsServiceProvider>(new VsServiceProviderWrapper(container));
localComponentModel = new LocalComponentModel(catalogProvider, composition);
container.AddService(typeof(SComponentModel), localComponentModel);
container.AddService(typeof(IComponentModel), localComponentModel);
AppDomain.CurrentDomain.ProcessExit += new EventHandler(Microsoft.VisualStudio.TextTemplating.VSHost.CompositionServices.CurrentDomain_Cleanup);
AppDomain.CurrentDomain.DomainUnload += new EventHandler(Microsoft.VisualStudio.TextTemplating.VSHost.CompositionServices.CurrentDomain_Cleanup);
servicesInitialized = true;
}
catch (Exception)
{
CleanupFields();
throw;
}
}
}
private static void CleanupFields()
{
if (container != null)
{
container.Dispose();
container = null;
}
if (serviceProvider != null)
{
serviceProvider.Dispose();
serviceProvider = null;
}
if (composition != null)
{
composition.Dispose();
composition = null;
}
if (globalCatalog != null)
{
globalCatalog.Dispose();
globalCatalog = null;
}
componentHost = null;
catalogProvider = null;
localComponentModel = null;
}