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/****************************************************************************
**
** Copyright (C) 2021 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtCore module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QJNIOBJECT_H
#define QJNIOBJECT_H
#include <QtCore/QSharedPointer>
#if defined(Q_OS_ANDROID) && !defined(Q_OS_ANDROID_EMBEDDED)
#include <jni.h>
#else
class jclass;
class jobject;
#endif
QT_BEGIN_NAMESPACE
class QJniObjectPrivate;
class Q_CORE_EXPORT QJniObject
{
public:
QJniObject();
explicit QJniObject(const char *className);
explicit QJniObject(const char *className, const char *signature, ...);
explicit QJniObject(jclass clazz);
explicit QJniObject(jclass clazz, const char *signature, ...);
QJniObject(jobject globalRef);
~QJniObject();
template <typename T>
T object() const;
jobject object() const;
template <typename T>
T callMethod(const char *methodName, const char *signature, ...) const;
template <typename T>
T callMethod(const char *methodName) const;
template <typename T>
QJniObject callObjectMethod(const char *methodName) const;
QJniObject callObjectMethod(const char *methodName, const char *signature, ...) const;
template <typename T>
static T callStaticMethod(const char *className, const char *methodName,
const char *signature, ...);
template <typename T>
static T callStaticMethod(const char *className, const char *methodName);
template <typename T>
static T callStaticMethod(jclass clazz, const char *methodName, const char *signature, ...);
template <typename T>
static T callStaticMethod(jclass clazz, const char *methodName);
template <typename T>
static QJniObject callStaticObjectMethod(const char *className, const char *methodName);
static QJniObject callStaticObjectMethod(const char *className,
const char *methodName,
const char *signature, ...);
template <typename T>
static QJniObject callStaticObjectMethod(jclass clazz, const char *methodName);
static QJniObject callStaticObjectMethod(jclass clazz,
const char *methodName,
const char *signature, ...);
template <typename T>
T getField(const char *fieldName) const;
template <typename T>
static T getStaticField(const char *className, const char *fieldName);
template <typename T>
static T getStaticField(jclass clazz, const char *fieldName);
template <typename T>
QJniObject getObjectField(const char *fieldName) const;
QJniObject getObjectField(const char *fieldName, const char *signature) const;
template <typename T>
static QJniObject getStaticObjectField(const char *className, const char *fieldName);
static QJniObject getStaticObjectField(const char *className,
const char *fieldName,
const char *signature);
template <typename T>
static QJniObject getStaticObjectField(const char *className,
const char *fieldName,
const char *signature);
template <typename T>
static QJniObject getStaticObjectField(jclass clazz, const char *fieldName);
static QJniObject getStaticObjectField(jclass clazz, const char *fieldName,
const char *signature);
template <typename T>
static QJniObject getStaticObjectField(jclass clazz, const char *fieldName,
const char *signature);
template <typename T>
void setField(const char *fieldName, T value);
template <typename T>
void setField(const char *fieldName, const char *signature, T value);
template <typename T>
static void setStaticField(const char *className, const char *fieldName, T value);
template <typename T>
static void setStaticField(const char *className, const char *fieldName,
const char *signature, T value);
template <typename T>
static void setStaticField(jclass clazz, const char *fieldName,
const char *signature, T value);
template <typename T>
static void setStaticField(jclass clazz, const char *fieldName, T value);
static QJniObject fromString(const QString &string);
QString toString() const;
static bool isClassAvailable(const char *className);
bool isValid() const;
// This function takes ownership of the jobject and releases the local ref. before returning.
static QJniObject fromLocalRef(jobject lref);
template <typename T> QJniObject &operator=(T obj);
private:
struct QVaListPrivate { operator va_list &() const { return m_args; } va_list &m_args; };
QJniObject(const char *className, const char *signature, const QVaListPrivate &args);
QJniObject(jclass clazz, const char *signature, const QVaListPrivate &args);
template <typename T>
T callMethodV(const char *methodName, const char *signature, va_list args) const;
QJniObject callObjectMethodV(const char *methodName,
const char *signature,
va_list args) const;
template <typename T>
static T callStaticMethodV(const char *className,
const char *methodName,
const char *signature,
va_list args);
template <typename T>
static T callStaticMethodV(jclass clazz,
const char *methodName,
const char *signature,
va_list args);
static QJniObject callStaticObjectMethodV(const char *className,
const char *methodName,
const char *signature,
va_list args);
static QJniObject callStaticObjectMethodV(jclass clazz,
const char *methodName,
const char *signature,
va_list args);
bool isSameObject(jobject obj) const;
bool isSameObject(const QJniObject &other) const;
void assign(jobject obj);
jobject javaObject() const;
friend bool operator==(const QJniObject &, const QJniObject &);
friend bool operator!=(const QJniObject&, const QJniObject&);
QSharedPointer<QJniObjectPrivate> d;
};
inline bool operator==(const QJniObject &obj1, const QJniObject &obj2)
{
return obj1.isSameObject(obj2);
}
inline bool operator!=(const QJniObject &obj1, const QJniObject &obj2)
{
return !obj1.isSameObject(obj2);
}
QT_END_NAMESPACE
#endif // QJNIOBJECT_H
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