From 36d22d82aa202bb199967e9512281e9a53db42c9 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 21:33:14 +0200 Subject: Adding upstream version 115.7.0esr. Signed-off-by: Daniel Baumann --- widget/nsAppShellSingleton.h | 60 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 60 insertions(+) create mode 100644 widget/nsAppShellSingleton.h (limited to 'widget/nsAppShellSingleton.h') diff --git a/widget/nsAppShellSingleton.h b/widget/nsAppShellSingleton.h new file mode 100644 index 0000000000..cd554951c6 --- /dev/null +++ b/widget/nsAppShellSingleton.h @@ -0,0 +1,60 @@ +/* -*- Mode: c++; tab-width: 2; indent-tabs-mode: nil; -*- */ +/* 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/. */ + +#ifndef nsAppShellSingleton_h__ +#define nsAppShellSingleton_h__ + +/** + * This file is designed to be included into the file that provides the + * XPCOM module implementation for a particular widget toolkit. + * + * The following functions are defined: + * nsAppShellInit + * nsAppShellShutdown + * nsAppShellConstructor + * + * The nsAppShellInit function is designed to be used as a module constructor. + * If you already have a module constructor, then call nsAppShellInit from your + * module constructor. + * + * The nsAppShellShutdown function is designed to be used as a module + * destructor. If you already have a module destructor, then call + * nsAppShellShutdown from your module destructor. + * + * The nsAppShellConstructor function is designed to be used as a factory + * method for the nsAppShell class. + */ + +#include "nsXULAppAPI.h" + +static nsIAppShell* sAppShell; + +static nsresult nsAppShellInit() { + NS_ASSERTION(!sAppShell, "already initialized"); + + sAppShell = new nsAppShell(); + if (!sAppShell) return NS_ERROR_OUT_OF_MEMORY; + NS_ADDREF(sAppShell); + + nsresult rv = static_cast(sAppShell)->Init(); + // If we somehow failed to initialize the appshell, it's extremely likely + // that we are sufficiently hosed that continuing on is just going to lead + // to bad things later. By crashing early here, the crash report will + // potentially contain a little more insight into what's going wrong than + // if we waited for a crash further down the line. See also bug 1545381. + MOZ_RELEASE_ASSERT(NS_SUCCEEDED(rv)); + + return NS_OK; +} + +static void nsAppShellShutdown() { NS_RELEASE(sAppShell); } + +nsresult nsAppShellConstructor(const nsIID& iid, void** result) { + NS_ENSURE_TRUE(sAppShell, NS_ERROR_NOT_INITIALIZED); + + return sAppShell->QueryInterface(iid, result); +} + +#endif // nsAppShellSingleton_h__ -- cgit v1.2.3