| /**************************************************************************** |
| ** |
| ** 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 |
| |
| 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 |