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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "nsCOMPtr.h"
#include "nsString.h"
#include "nsXPIDLString.h"
#include "nsIServiceManager.h"
#include "nsICategoryManager.h"
#include "nsXPCOM.h"
#include "nsISupportsPrimitives.h"
#include "nsAppStartupNotifier.h"
#include "nsISimpleEnumerator.h"
NS_IMPL_ISUPPORTS(nsAppStartupNotifier, nsIObserver)
nsAppStartupNotifier::nsAppStartupNotifier()
{
}
nsAppStartupNotifier::~nsAppStartupNotifier()
{
}
NS_IMETHODIMP nsAppStartupNotifier::Observe(nsISupports *aSubject, const char *aTopic, const char16_t *someData)
{
NS_ENSURE_ARG(aTopic);
nsresult rv;
// now initialize all startup listeners
nsCOMPtr<nsICategoryManager> categoryManager =
do_GetService(NS_CATEGORYMANAGER_CONTRACTID, &rv);
NS_ENSURE_SUCCESS(rv, rv);
nsCOMPtr<nsISimpleEnumerator> enumerator;
rv = categoryManager->EnumerateCategory(aTopic,
getter_AddRefs(enumerator));
if (NS_FAILED(rv)) return rv;
nsCOMPtr<nsISupports> entry;
while (NS_SUCCEEDED(enumerator->GetNext(getter_AddRefs(entry)))) {
nsCOMPtr<nsISupportsCString> category = do_QueryInterface(entry, &rv);
if (NS_SUCCEEDED(rv)) {
nsAutoCString categoryEntry;
rv = category->GetData(categoryEntry);
nsXPIDLCString contractId;
categoryManager->GetCategoryEntry(aTopic,
categoryEntry.get(),
getter_Copies(contractId));
if (NS_SUCCEEDED(rv)) {
// If we see the word "service," in the beginning
// of the contractId then we create it as a service
// if not we do a createInstance
nsCOMPtr<nsISupports> startupInstance;
if (Substring(contractId, 0, 8).EqualsLiteral("service,"))
startupInstance = do_GetService(contractId.get() + 8, &rv);
else
startupInstance = do_CreateInstance(contractId, &rv);
if (NS_SUCCEEDED(rv)) {
// Try to QI to nsIObserver
nsCOMPtr<nsIObserver> startupObserver =
do_QueryInterface(startupInstance, &rv);
if (NS_SUCCEEDED(rv)) {
rv = startupObserver->Observe(nullptr, aTopic, nullptr);
// mainly for debugging if you want to know if your observer worked.
NS_ASSERTION(NS_SUCCEEDED(rv), "Startup Observer failed!\n");
}
}
else {
#ifdef DEBUG
nsAutoCString warnStr("Cannot create startup observer : ");
warnStr += contractId.get();
NS_WARNING(warnStr.get());
#endif
}
}
}
}
return NS_OK;
}
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