qcoreapplication_platform.h

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// Copyright (C) 2021 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:significant reason:default

#ifndef QCOREAPPLICATION_PLATFORM_H

#define QCOREAPPLICATION_PLATFORM_H

//

//  W A R N I N G

//  -------------

//

// This file is part of the native interface APIs. Usage of

// this API may make your code source and binary incompatible

// with future versions of Qt.

//

#include <QtCore/qglobal.h>

#include <QtCore/qnativeinterface.h>

#include <QtCore/qcoreapplication.h>

#if defined(Q_OS_ANDROID) || defined(Q_QDOC)

#include <QtCore/qjnitypes.h>

#if QT_CONFIG(future) && !defined(QT_NO_QOBJECT)

#include <QtCore/qfuture.h>

#include <QtCore/qvariant.h>

#endif

#endif // #if defined(Q_OS_ANDROID) || defined(Q_QDOC)

#if defined(Q_OS_ANDROID)

class _jobject;

typedef _jobject* jobject;

#endif

#if defined(Q_OS_HARMONY) || defined(Q_QDOC)

#include <QtCore/qharmonyjscontext.h>

#include <functional>

#include <optional>

#include <type_traits>

#endif // #if defined(Q_OS_HARMONY) || defined(Q_QDOC)

QT_BEGIN_NAMESPACE

namespace QNativeInterface

#if defined(Q_OS_ANDROID) || defined(Q_QDOC)

struct Q_CORE_EXPORT QAndroidApplication

    QT_DECLARE_NATIVE_INTERFACE(QAndroidApplication, 1, QCoreApplication)

#ifdef Q_QDOC

    static QJniObject context();

#else

    static QtJniTypes::Context context();

#endif

    static bool isActivityContext();

    static int sdkVersion();

    static void hideSplashScreen(int duration = 0);

#if QT_CONFIG(future) && !defined(QT_NO_QOBJECT)

    static QFuture<QVariant> runOnAndroidMainThread(const std::function<QVariant()> &runnable,

                                            const QDeadlineTimer timeout = QDeadlineTimer::Forever);

    template <class T>

    std::enable_if_t<std::is_invocable_v<T> && std::is_same_v<std::invoke_result_t<T>, void>,

    QFuture<void>> static runOnAndroidMainThread(const T &runnable,

                                            const QDeadlineTimer timeout = QDeadlineTimer::Forever)

        std::function<QVariant()> func = [runnable](){ runnable(); return QVariant(); };

        return static_cast<QFuture<void>>(runOnAndroidMainThread(func, timeout));

#endif

};

#endif

#if defined(Q_OS_HARMONY) || defined(Q_QDOC)

struct Q_CORE_EXPORT QHarmonyApplication

    QT_DECLARE_NATIVE_INTERFACE(QHarmonyApplication, 1, QCoreApplication)

    static void runOnJsThread(std::function<void(QHarmonyJsContext &)> &&task);

    static void runOnJsThreadAndWait(const std::function<void(QHarmonyJsContext &)> &task);

#ifdef Q_QDOC

    template <typename Func, typename Result>

    static Result runOnJsThreadAndWait(Func &&task);

#else

    template <typename Func, typename Result = std::invoke_result_t<Func, QHarmonyJsContext &>>

    static std::enable_if_t<!std::is_void_v<Result>, Result> runOnJsThreadAndWait(Func &&task)

        static_assert(!std::is_reference_v<Result>, "The task must return a value, not a reference");

        static_assert(std::is_default_constructible_v<Result>, "The task's result type must be default-constructible");

        static_assert(

            !std::is_convertible_v<Result, napi_value> && !std::is_convertible_v<Result, napi_ref>,

            "A napi_value or napi_ref result must not leave the JS thread");

        std::optional<Result> optResult;

        runOnJsThreadAndWait(

            [&](QHarmonyJsContext &jsContext) {

                auto result = std::invoke(std::forward<Func>(task), jsContext);

                bool exceptionPending = false;

                napi_is_exception_pending(jsContext.env(), &exceptionPending);

                if (!exceptionPending)

                    optResult.emplace(std::move(result));

});

        return optResult ? std::move(*optResult) : Result();

#endif

    static void runOnQtThread(std::function<void()> &&task);

};

#endif

QT_END_NAMESPACE

#endif // QCOREAPPLICATION_PLATFORM_H