/// <summary>
/// Initializes the VSPackage with a back pointer to the environment. This is the entry point
/// for the Visual Studio package.
/// </summary>
/// <param name="sp">
/// Pointer to the <see cref="IOleServiceProvider"/> interface through which the
/// VSPackage can query for services.
/// </param>
/// <returns>An HRESULT indicating the result of the call.</returns>
int IVsPackage.SetSite(IOleServiceProvider sp)
{
if (this.Closed)
{
Tracer.Fail("We shouldn't have been called if we're being unloaded.");
return(NativeMethods.E_UNEXPECTED);
}
try
{
if (sp != null)
{
// If SetSite has been called more than once, it's an error.
if (this.Context != null)
{
string message = this.Context.NativeResources.GetString(ResId.IDS_E_SITEALREADYSET, this.GetType().FullName);
Tracer.Fail(message);
throw new InvalidOperationException(message);
}
// Initialize the ServiceProvider and ourself.
ServiceProvider contextServiceProvider = new ServiceProvider(sp);
this.context = this.CreatePackageContext(contextServiceProvider);
Tracer.Initialize(this.context);
this.Initialize();
}
else if (this.Context != null && this.Context.ServiceProvider != null)
{
this.Dispose(true);
}
}
catch (Exception e)
{
Tracer.Fail("Unexpected exception: {0}\n{1}", e.Message, e);
throw;
}
return(NativeMethods.S_OK);
}