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/* -*- Mode: C++; tab-width: 8; 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/. */
#ifndef TOOLKIT_COMPONENTS_REMOTE_REMOTEUTILS_H_
#define TOOLKIT_COMPONENTS_REMOTE_REMOTEUTILS_H_
#include "mozilla/HashFunctions.h"
#include "nsString.h"
#if defined XP_WIN
# include "WinUtils.h"
#endif
#if defined XP_WIN || defined XP_MACOSX
static void BuildClassName(const char* aProgram, const char* aProfile,
nsString& aClassName) {
// On Windows, the class name is used as the window class.
// The window class name is limited to 256 characters, and it fails when
// exceeds.
//
// https://learn.microsoft.com/en-us/windows/win32/api/winuser/ns-winuser-wndclassa
//
// On macOS, the class name is used as the name of message ports.
// The message port's name is limited to 128 characters, and the characters
// beyond the length is simply ignored.
//
// https://github.com/opensource-apple/CF/blob/3cc41a76b1491f50813e28a4ec09954ffa359e6f/CFMessagePort.c#L53
# if defined XP_WIN
constexpr size_t ClassNameMaxLength = 256;
# else
constexpr size_t ClassNameMaxLength = 128;
# endif
aClassName.AppendPrintf("Mozilla_%s", aProgram);
# if defined XP_WIN
nsString pfn = mozilla::widget::WinUtils::GetPackageFamilyName();
if (!pfn.IsEmpty()) {
aClassName.AppendPrintf("_%S", pfn.getW());
}
# endif
aClassName.AppendPrintf("_%s_RemoteWindow", aProfile);
if (aClassName.Length() > ClassNameMaxLength) {
mozilla::HashNumber hash = mozilla::HashString(aClassName.get());
aClassName.Truncate();
aClassName.AppendPrintf("Mozilla_%08x_RemoteWindow", hash);
}
}
#endif
mozilla::UniquePtr<char[]> ConstructCommandLine(int32_t argc, const char** argv,
const char* aStartupToken,
int* aCommandLineLength);
#endif // TOOLKIT_COMPONENTS_REMOTE_REMOTEUTILS_H_
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