зеркало из https://github.com/mozilla/gecko-dev.git
68 строки
2.1 KiB
C++
68 строки
2.1 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 "nsComponentManagerUtils.h"
|
|
#include "nsCOMPtr.h"
|
|
#include "nsString.h"
|
|
#include "nsICategoryManager.h"
|
|
#include "nsXPCOM.h"
|
|
#include "nsAppStartupNotifier.h"
|
|
#include "mozilla/SimpleEnumerator.h"
|
|
|
|
/* static */
|
|
nsresult nsAppStartupNotifier::NotifyObservers(const char* aCategory) {
|
|
NS_ENSURE_ARG(aCategory);
|
|
nsresult rv;
|
|
|
|
// now initialize all startup listeners
|
|
nsCOMPtr<nsICategoryManager> categoryManager =
|
|
do_GetService(NS_CATEGORYMANAGER_CONTRACTID, &rv);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
nsDependentCString category(aCategory);
|
|
|
|
nsCOMPtr<nsISimpleEnumerator> enumerator;
|
|
rv = categoryManager->EnumerateCategory(category, getter_AddRefs(enumerator));
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
|
|
for (auto& categoryEntry : SimpleEnumerator<nsICategoryEntry>(enumerator)) {
|
|
nsAutoCString contractId;
|
|
categoryEntry->GetValue(contractId);
|
|
|
|
nsCOMPtr<nsISupports> startupInstance;
|
|
|
|
// 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
|
|
if (StringBeginsWith(contractId, NS_LITERAL_CSTRING("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, aCategory, 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;
|
|
}
|