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#ifndef QANDROIDJNIOBJECT_H
#define QANDROIDJNIOBJECT_H

#include <jni.h>
#include <QtAndroidExtras/qandroidextrasglobal.h>
#include <QtCore/qglobal.h>
#include <QtCore/qsharedpointer.h>

QT_BEGIN_NAMESPACE

class QJNIObjectPrivate;

class Q_ANDROIDEXTRAS_EXPORT QAndroidJniObject
{
public:
    QAndroidJniObject();
    explicit QAndroidJniObject(const char *className);
    explicit QAndroidJniObject(const char *className, const char *sig, ...);
    explicit QAndroidJniObject(jclass clazz);
    explicit QAndroidJniObject(jclass clazz, const char *sig, ...);
    QAndroidJniObject(jobject obj);
    ~QAndroidJniObject();

    template <typename T>
    inline T object() const { return static_cast<T>(javaObject()); }
#ifndef Q_QDOC
    inline jobject object() const { return javaObject(); }
#endif // Q_QDOC

    template <typename T>
    T callMethod(const char *methodName) const;
    template <typename T>
    T callMethod(const char *methodName, const char *sig, ...) const;
    template <typename T>
    QAndroidJniObject callObjectMethod(const char *methodName) const;
    QAndroidJniObject callObjectMethod(const char *methodName,
                                const char *sig,
                                ...) const;

    template <typename T>
    static T callStaticMethod(const char *className, const char *methodName);
    template <typename T>
    static T callStaticMethod(const char *className, const char *methodName, const char *sig, ...);
    template <typename T>
    static QAndroidJniObject callStaticObjectMethod(const char *className, const char *methodName);
    static QAndroidJniObject callStaticObjectMethod(const char *className,
                                             const char *methodName,
                                             const char *sig, ...);
    template <typename T>
    static T callStaticMethod(jclass clazz, const char *methodName);
    template <typename T>
    static T callStaticMethod(jclass clazz, const char *methodName, const char *sig, ...);
    template <typename T>
    static QAndroidJniObject callStaticObjectMethod(jclass clazz, const char *methodName);
    static QAndroidJniObject callStaticObjectMethod(jclass clazz,
                                             const char *methodName,
                                             const char *sig, ...);
    template <typename T>
    T getField(const char *fieldName) const;
    template <typename T>
    QAndroidJniObject getObjectField(const char *fieldName) const;
#if QT_DEPRECATED_SINCE(5, 5)
# ifndef Q_QDOC
    template <typename T>
    QT_DEPRECATED_X("Use the non-template version instead")
    QAndroidJniObject getObjectField(const char *fieldName, const char *sig) const;
# endif // Q_QDOC
#endif // QT_DEPRECATED_SINCE
    QAndroidJniObject getObjectField(const char *fieldName, const char *sig) const;
    template <typename T>
    void setField(const char *fieldName, T value);
    template <typename T>
    void setField(const char *fieldName, const char *sig, T value);
    template <typename T>
    static QAndroidJniObject getStaticObjectField(const char *className, const char *fieldName);
#if QT_DEPRECATED_SINCE(5, 5)
# ifndef Q_QDOC
    template <typename T>
    QT_DEPRECATED_X("Use the non-template version instead")
    static QAndroidJniObject getStaticObjectField(const char *className,
                                                  const char *fieldName,
                                                  const char *sig);
# endif // Q_QDOC
#endif // QT_DEPRECATED_SINCE
    static QAndroidJniObject getStaticObjectField(const char *className,
                                           const char *fieldName,
                                           const char *sig);
    template <typename T>
    static T getStaticField(const char *className, const char *fieldName);
    template <typename T>
    static QAndroidJniObject getStaticObjectField(jclass clazz, const char *fieldName);
#if QT_DEPRECATED_SINCE(5, 5)
# ifndef Q_QDOC
    template <typename T>
    QT_DEPRECATED_X("Use the non-template version instead")
    static QAndroidJniObject getStaticObjectField(jclass clazz,
                                                  const char *fieldName,
                                                  const char *sig);
# endif // Q_QDOC
#endif // QT_DEPRECATED_SINCE
    static QAndroidJniObject getStaticObjectField(jclass clazz,
                                           const char *fieldName,
                                           const char *sig);
    template <typename T>
    static T getStaticField(jclass clazz, const char *fieldName);

    template <typename T>
    static void setStaticField(const char *className,
                               const char *fieldName,
                               const char *sig,
                               T value);
    template <typename T>
    static void setStaticField(const char *className, const char *fieldName, T value);
    template <typename T>
    static void setStaticField(jclass clazz, const char *fieldName, const char *sig, T value);
    template <typename T>
    static void setStaticField(jclass clazz, const char *fieldName, T value);

    static QAndroidJniObject fromString(const QString &string);
    QString toString() const;

    static bool isClassAvailable(const char *className);
    bool isValid() const;

    static QAndroidJniObject fromLocalRef(jobject obj);

    template <typename T>
    inline QAndroidJniObject &operator=(T o)
    {
        assign(static_cast<jobject>(o));
        return *this;
    }

private:
    friend bool operator==(const QAndroidJniObject &, const QAndroidJniObject &);
    friend bool operator!=(const QAndroidJniObject &, const QAndroidJniObject &);
    template <typename T> friend bool operator!=(const QAndroidJniObject &, const QAndroidJniObject &);
    template <typename T> friend bool operator==(const QAndroidJniObject &, const QAndroidJniObject &);

    QAndroidJniObject(const QJNIObjectPrivate &o);

    void assign(jobject o);
    jobject javaObject() const;
    bool isSameObject(jobject obj) const;
    bool isSameObject(const QAndroidJniObject &obj) const;

    QSharedPointer<QJNIObjectPrivate> d;
};

inline bool operator==(const QAndroidJniObject &obj1, const QAndroidJniObject &obj2)
{
    return obj1.isSameObject(obj2);
}

inline bool operator!=(const QAndroidJniObject &obj1, const QAndroidJniObject &obj2)
{
    return !obj1.isSameObject(obj2);
}

#if QT_DEPRECATED_SINCE(5, 5)
template<typename T>
QT_DEPRECATED inline bool operator==(const QAndroidJniObject &obj1, const QAndroidJniObject &obj2)
{
    return obj1.isSameObject(obj2.object());
}

template <typename T>
QT_DEPRECATED inline bool operator!=(const QAndroidJniObject &obj1, const QAndroidJniObject &obj2)
{
    return !obj1.isSameObject(obj2.object());
}
#endif // QT_DEPRECATED_SINCE

QT_END_NAMESPACE

#endif // QANDROIDJNIOBJECT_H