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