qlocale_wasm.cpp

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// Copyright (C) 2023 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
// Qt-Security score:critical reason:data-parser
 
#include "qlocale_p.h"
 
#include <emscripten.h>
 
QT_BEGIN_NAMESPACE
 
#ifndef QT_NO_SYSTEMLOCALE
 
namespace {
 
QStringList navigatorLanguages()
{
    // Read navigator.languages using EM_ASM_PTR instead of emscripten::val. The
    // latter does not support being used from static constructors (emscripten #23170)
    char *joined = reinterpret_cast<char *>(EM_ASM_PTR({
        return stringToNewUTF8(navigator.languages.join("\n"));
    }));
    const QStringList qtLanguages =
            QString::fromUtf8(joined).split(u'\n', Qt::SkipEmptyParts);
    free(joined);
    return qtLanguages;
}
 
}
 
QVariant QSystemLocale::query(QueryType query, QVariant &&in) const
{
    Q_UNUSED(in);
 
    switch (query) {
    case QSystemLocale::UILanguages:
        return QVariant(navigatorLanguages());
    default:
    break;
    }
 
    return QVariant();
}
 
QLocale QSystemLocale::fallbackLocale() const
{
    const QStringList languages = navigatorLanguages();
    if (languages.isEmpty())
        return QLocale(u"en-US");
    return QLocale(languages[0]);
}
 
#endif // QT_NO_SYSTEMLOCALE
 
QT_END_NAMESPACE