mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-11-28 23:31:56 +00:00
6d8bc2e134
Differential Revision: https://phabricator.services.mozilla.com/D21124 --HG-- extra : rebase_source : f44a8f1cd9e2e73b6bb2a994d9aeb42779d2d36f extra : histedit_source : f39b1350e24c58104047e65f14883ee3f710a295
76 lines
2.5 KiB
C++
76 lines
2.5 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* 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 "nsIServiceManager.h"
|
|
#include "nsICategoryManager.h"
|
|
#include "nsXPCOM.h"
|
|
#include "nsISupportsPrimitives.h"
|
|
#include "nsAppStartupNotifier.h"
|
|
#include "nsISimpleEnumerator.h"
|
|
|
|
/* static */
|
|
nsresult nsAppStartupNotifier::NotifyObservers(const char* aTopic) {
|
|
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);
|
|
|
|
nsDependentCString topic(aTopic);
|
|
|
|
nsCOMPtr<nsISimpleEnumerator> enumerator;
|
|
rv = categoryManager->EnumerateCategory(topic, 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);
|
|
|
|
nsCString contractId;
|
|
categoryManager->GetCategoryEntry(topic, categoryEntry, 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.get(), &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;
|
|
}
|