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/****************************************************************************
**
** Copyright (C) 2017 BogDan Vatra <bogdan@kde.org>
** Contact: https://www.qt.io/licensing/
**
** This file is part 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.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qandroidparcel.h"
#include "qandroidbinder.h"
#include "qandroidbinder_p.h"
#include "qandroidparcel_p.h"
#include <QAndroidJniObject>
#include <QAndroidJniEnvironment>
#include <QBuffer>
#include <QDataStream>
#include <QVariant>
QT_BEGIN_NAMESPACE
struct FileDescriptor
{
explicit FileDescriptor(int fd = -1)
: handle("java/io/FileDescriptor")
{
QAndroidJniExceptionCleaner cleaner;
setFileDescriptor(fd);
}
inline void setFileDescriptor(int fd)
{
QAndroidJniExceptionCleaner cleaner;
handle.setField("descriptor", fd);
}
QAndroidJniObject handle;
};
QAndroidParcelPrivate::QAndroidParcelPrivate()
: handle(QAndroidJniObject::callStaticObjectMethod("android/os/Parcel","obtain", "()Landroid/os/Parcel;").object())
{}
QAndroidParcelPrivate::QAndroidParcelPrivate(const QAndroidJniObject &parcel)
: handle(parcel)
{}
void QAndroidParcelPrivate::writeData(const QByteArray &data) const
{
if (data.isEmpty())
return;
QAndroidJniExceptionCleaner cleaner;
QAndroidJniEnvironment env;
jbyteArray array = env->NewByteArray(data.size());
env->SetByteArrayRegion(array, 0, data.length(), reinterpret_cast<const jbyte*>(data.constData()));
handle.callMethod<void>("writeByteArray", "([B)V", array);
env->DeleteLocalRef(array);
}
void QAndroidParcelPrivate::writeBinder(const QAndroidBinder &binder) const
{
QAndroidJniExceptionCleaner cleaner;
handle.callMethod<void>("writeStrongBinder", "(Landroid/os/IBinder;)V", binder.handle().object());
}
void QAndroidParcelPrivate::writeFileDescriptor(int fd) const
{
QAndroidJniExceptionCleaner cleaner;
handle.callMethod<void>("writeFileDescriptor", "(Ljava/io/FileDescriptor;)V", FileDescriptor(fd).handle.object());
}
QByteArray QAndroidParcelPrivate::readData() const
{
QAndroidJniExceptionCleaner cleaner;
auto array = handle.callObjectMethod("createByteArray", "()[B");
QAndroidJniEnvironment env;
auto sz = env->GetArrayLength(jbyteArray(array.object()));
QByteArray res(sz, Qt::Initialization::Uninitialized);
env->GetByteArrayRegion(jbyteArray(array.object()), 0, sz, reinterpret_cast<jbyte *>(res.data()));
return res;
}
int QAndroidParcelPrivate::readFileDescriptor() const
{
QAndroidJniExceptionCleaner cleaner;
auto parcelFD = handle.callObjectMethod("readFileDescriptor", "()Landroid/os/ParcelFileDescriptor;");
if (parcelFD.isValid())
return parcelFD.callMethod<jint>("getFd", "()I");
return -1;
}
QAndroidBinder QAndroidParcelPrivate::readBinder() const
{
QAndroidJniExceptionCleaner cleaner;
auto strongBinder = handle.callObjectMethod("readStrongBinder", "()Landroid/os/IBinder;");
return QAndroidBinder(strongBinder.object());
}
/*!
\class QAndroidParcel
\inmodule QtAndroidExtras
The QAndroidParcel is a convenience class that wraps the most important
\l {https://developer.android.com/reference/android/os/Parcel.html} {Android Parcel} methods.
\since 5.10
*/
/*!
Creates a new object.
*/
QAndroidParcel::QAndroidParcel()
: d(new QAndroidParcelPrivate())
{
}
/*!
Wraps the \a parcel object.
*/
QAndroidParcel::QAndroidParcel(const QAndroidJniObject& parcel)
: d(new QAndroidParcelPrivate(parcel))
{
}
QAndroidParcel::~QAndroidParcel()
{
}
/*!
Writes the provided \a data as a byte array
*/
void QAndroidParcel::writeData(const QByteArray &data) const
{
d->writeData(data);
}
/*!
Writes the provided \a value. The value is converted into a
QByteArray before is written.
*/
void QAndroidParcel::writeVariant(const QVariant &value) const
{
QByteArray buff;
QDataStream stream(&buff, QIODevice::WriteOnly);
stream << value;
d->writeData(buff);
}
/*!
Writes a \a binder object. This is useful for a client to
send to a server a binder which can be used by the server callback the client.
*/
void QAndroidParcel::writeBinder(const QAndroidBinder &binder) const
{
d->writeBinder(binder);
}
/*!
Writes the provided \a fd.
*/
void QAndroidParcel::writeFileDescriptor(int fd) const
{
d->writeFileDescriptor(fd);
}
/*!
Returns the data as a QByteArray
*/
QByteArray QAndroidParcel::readData() const
{
return d->readData();
}
/*!
Returns the data as a QVariant
*/
QVariant QAndroidParcel::readVariant() const
{
QDataStream stream(d->readData());
QVariant res;
stream >> res;
return res;
}
/*!
Returns the binder as a QAndroidBinder
*/
QAndroidBinder QAndroidParcel::readBinder() const
{
return d->readBinder();
}
/*!
Returns the file descriptor
*/
int QAndroidParcel::readFileDescriptor() const
{
return d->readFileDescriptor();
}
/*!
The return value is useful to call other Java API which are not covered by this wrapper
*/
QAndroidJniObject QAndroidParcel::handle() const
{
return d->handle;
}
QT_END_NAMESPACE
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