70 lines
1.8 KiB
C
70 lines
1.8 KiB
C
/* -*- Mode: c++; tab-width: 2; indent-tabs-mode: nil; -*- */
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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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#ifndef nsAppShellSingleton_h__
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#define nsAppShellSingleton_h__
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/**
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* This file is designed to be included into the file that provides the
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* nsIModule implementation for a particular widget toolkit.
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*
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* The following functions are defined:
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* nsAppShellInit
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* nsAppShellShutdown
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* nsAppShellConstructor
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*
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* The nsAppShellInit function is designed to be used as a module constructor.
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* If you already have a module constructor, then call nsAppShellInit from your
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* module constructor.
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*
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* The nsAppShellShutdown function is designed to be used as a module
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* destructor. If you already have a module destructor, then call
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* nsAppShellShutdown from your module destructor.
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*
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* The nsAppShellConstructor function is designed to be used as a factory
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* method for the nsAppShell class.
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*/
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#include "nsXULAppAPI.h"
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static nsIAppShell *sAppShell;
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static nsresult
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nsAppShellInit()
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{
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NS_ASSERTION(!sAppShell, "already initialized");
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sAppShell = new nsAppShell();
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if (!sAppShell)
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return NS_ERROR_OUT_OF_MEMORY;
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NS_ADDREF(sAppShell);
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nsresult rv;
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rv = static_cast<nsAppShell*>(sAppShell)->Init();
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if (NS_FAILED(rv)) {
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NS_RELEASE(sAppShell);
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return rv;
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}
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return NS_OK;
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}
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static void
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nsAppShellShutdown()
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{
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NS_RELEASE(sAppShell);
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}
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static nsresult
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nsAppShellConstructor(nsISupports *outer, const nsIID &iid, void **result)
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{
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NS_ENSURE_TRUE(!outer, NS_ERROR_NO_AGGREGATION);
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NS_ENSURE_TRUE(sAppShell, NS_ERROR_NOT_INITIALIZED);
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return sAppShell->QueryInterface(iid, result);
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}
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#endif // nsAppShellSingleton_h__
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