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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** 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 "qandroidjnienvironment.h"
#include <QtCore/private/qjni_p.h>
#include <QtCore/private/qjnihelpers_p.h>
#include <QtCore/qthreadstorage.h>
QT_BEGIN_NAMESPACE
/*!
\class QAndroidJniEnvironment
\inmodule QtAndroidExtras
\brief The QAndroidJniEnvironment provides access to the JNI Environment.
\since 5.2
*/
/*!
\fn QAndroidJniEnvironment::QAndroidJniEnvironment()
Constructs a new QAndroidJniEnvironment object and attach the current thread to the Java VM.
\snippet code/src_androidextras_qandroidjnienvironment.cpp Create QAndroidJniEnvironment
*/
/*!
\fn QAndroidJniEnvironment::~QAndroidJniEnvironment()
Detaches the current thread from the Java VM and destroys the QAndroidJniEnvironment object.
*/
/*!
\fn JavaVM *QAndroidJniEnvironment::javaVM()
Returns the Java VM interface.
*/
/*!
\fn JNIEnv *QAndroidJniEnvironment::operator->()
Provides access to the QAndroidJniEnvironment's JNIEnv pointer.
*/
/*!
\fn QAndroidJniEnvironment::operator JNIEnv *() const
Returns the JNI Environment pointer.
*/
/*!
\fn jclass QAndroidJniEnvironment::findClass(const char *className)
Searches for \a className using all available class loaders. Qt on Android
uses a custom class loader to load all the .jar files and it must be used
to find any classes that are created by that class loader because these
classes are not visible in the default class loader.
Returns the class pointer or null if is not found.
\since Qt 5.12
*/
QAndroidJniEnvironment::QAndroidJniEnvironment()
: d(new QJNIEnvironmentPrivate)
{
}
QAndroidJniEnvironment::~QAndroidJniEnvironment()
{
}
JavaVM *QAndroidJniEnvironment::javaVM()
{
return QtAndroidPrivate::javaVM();
}
JNIEnv *QAndroidJniEnvironment::operator->()
{
return d->jniEnv;
}
QAndroidJniEnvironment::operator JNIEnv*() const
{
return d->jniEnv;
}
jclass QAndroidJniEnvironment::findClass(const char *className)
{
return QJNIEnvironmentPrivate::findClass(className, d->jniEnv);
}
static void clearException(bool silent)
{
QAndroidJniEnvironment env;
if (Q_UNLIKELY(env->ExceptionCheck())) {
if (!silent)
env->ExceptionDescribe();
env->ExceptionClear();
}
}
/*!
\class QAndroidJniExceptionCleaner
\inmodule QtAndroidExtras
\brief Cleans pending JNI exceptions.
The QAndroidJniExceptionCleaner is a convenience class useful to clean
the pending JNI exceptions from the current scope.
\since 5.10
*/
/*!
\enum QAndroidJniExceptionCleaner::OutputMode
\value Silent the exceptions are cleaned silently
\value Verbose discribes the exceptions before cleaning them
*/
/*!
\fn QAndroidJniExceptionCleaner::QAndroidJniExceptionCleaner(OutputMode outputMode = OutputMode::Silent)
Cleans any pending exceptions either silently or with descriptions, depending on the \a outputMode.
*/
QAndroidJniExceptionCleaner::QAndroidJniExceptionCleaner(QAndroidJniExceptionCleaner::OutputMode outputMode)
: m_outputMode(outputMode)
{
clearException(outputMode == OutputMode::Silent);
}
/*!
\fn QAndroidJniExceptionCleaner::~QAndroidJniExceptionCleaner()
Clean any pending exceptions.
*/
QAndroidJniExceptionCleaner::~QAndroidJniExceptionCleaner()
{
clearException(m_outputMode == OutputMode::Silent);
}
/*!
\fn void QAndroidJniExceptionCleaner::clean()
Manually cleans any pending exceptions
*/
void QAndroidJniExceptionCleaner::clean()
{
clearException(m_outputMode == OutputMode::Silent);
}
QT_END_NAMESPACE
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