/****************************************************************************
**
** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the QtCore module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
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** accordance with the commercial license agreement provided with the
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** use the contact form at http://qt.digia.com/contact-us.
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** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
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****************************************************************************/

#include "qjnihelpers_p.h"

QT_BEGIN_NAMESPACE

static JavaVM *g_javaVM = Q_NULLPTR;
static jobject g_jActivity = Q_NULLPTR;

static inline bool exceptionCheck(JNIEnv *env)
{
    if (env->ExceptionCheck()) {
#ifdef QT_DEBUG
        env->ExceptionDescribe();
#endif // QT_DEBUG
        env->ExceptionClear();
        return true;
    }

    return false;
}

jint QtAndroidPrivate::initJNI(JavaVM *vm, JNIEnv *env)
{
    jclass jQtNative = env->FindClass("org/qtproject/qt5/android/QtNative");

    if (env->ExceptionCheck()) {
        env->ExceptionClear();
        return JNI_ERR;
    }

    jmethodID activityMethodID = env->GetStaticMethodID(jQtNative,
                                                        "activity",
                                                        "()Landroid/app/Activity;");

    if (exceptionCheck(env))
        return JNI_ERR;

    jobject activity = env->CallStaticObjectMethod(jQtNative, activityMethodID);
    if (exceptionCheck(env))
        return JNI_ERR;

    g_jActivity = env->NewGlobalRef(activity);
    g_javaVM = vm;

    return JNI_OK;
}


jobject QtAndroidPrivate::activity()
{
    return g_jActivity;
}

JavaVM *QtAndroidPrivate::javaVM()
{
    return g_javaVM;
}

QT_END_NAMESPACE