diff options
Diffstat (limited to 'src/plugins/networkinformationbackends/android/wrapper/androidconnectivitymanager.cpp')
-rw-r--r-- | src/plugins/networkinformationbackends/android/wrapper/androidconnectivitymanager.cpp | 132 |
1 files changed, 132 insertions, 0 deletions
diff --git a/src/plugins/networkinformationbackends/android/wrapper/androidconnectivitymanager.cpp b/src/plugins/networkinformationbackends/android/wrapper/androidconnectivitymanager.cpp new file mode 100644 index 0000000000..c22f16f7b4 --- /dev/null +++ b/src/plugins/networkinformationbackends/android/wrapper/androidconnectivitymanager.cpp @@ -0,0 +1,132 @@ +/**************************************************************************** +** +** Copyright (C) 2021 The Qt Company Ltd. +** Contact: https://www.qt.io/licensing/ +** +** This file is part of the plugins 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 "androidconnectivitymanager.h" + +#include <QtCore/private/qjnihelpers_p.h> +#include <QtCore/qjnienvironment.h> + +QT_BEGIN_NAMESPACE + +struct AndroidConnectivityManagerInstance +{ + AndroidConnectivityManagerInstance() : connManager(new AndroidConnectivityManager) { } + std::unique_ptr<AndroidConnectivityManager> connManager = nullptr; +}; +Q_GLOBAL_STATIC(AndroidConnectivityManagerInstance, androidConnManagerInstance) + +static const char networkInformationClass[] = + "org/qtproject/qt/android/networkinformation/QtAndroidNetworkInformation"; + +static void networkConnectivityChanged() +{ + Q_EMIT androidConnManagerInstance->connManager->connectivityChanged(); +} + +AndroidConnectivityManager::AndroidConnectivityManager() +{ + if (!registerNatives()) + return; + + m_connectivityManager = QJniObject::callStaticObjectMethod( + networkInformationClass, "getConnectivityManager", + "(Landroid/content/Context;)Landroid/net/ConnectivityManager;", + QtAndroidPrivate::context()); + if (!m_connectivityManager.isValid()) + return; + + QJniObject::callStaticMethod<void>(networkInformationClass, "registerReceiver", + "(Landroid/content/Context;)V", QtAndroidPrivate::context()); +} + +AndroidConnectivityManager *AndroidConnectivityManager::getInstance() +{ + if (!androidConnManagerInstance()) + return nullptr; + return androidConnManagerInstance->connManager->isValid() + ? androidConnManagerInstance->connManager.get() + : nullptr; +} + +AndroidConnectivityManager::~AndroidConnectivityManager() +{ + QJniObject::callStaticMethod<void>(networkInformationClass, "unregisterReceiver", + "(Landroid/content/Context;)V", QtAndroidPrivate::context()); +} + +AndroidConnectivityManager::AndroidConnectivity AndroidConnectivityManager::networkConnectivity() +{ + QJniEnvironment env; + QJniObject networkReceiver(networkInformationClass); + jclass clazz = env->GetObjectClass(networkReceiver.object()); + static const QByteArray functionSignature = + QByteArray(QByteArray("()L") + networkInformationClass + "$AndroidConnectivity;"); + QJniObject enumObject = + QJniObject::callStaticObjectMethod(clazz, "state", functionSignature.data()); + if (!enumObject.isValid()) + return AndroidConnectivityManager::AndroidConnectivity::Unknown; + + QJniObject enumName = enumObject.callObjectMethod<jstring>("name"); + if (!enumName.isValid()) + return AndroidConnectivityManager::AndroidConnectivity::Unknown; + + QString name = enumName.toString(); + if (name == u"Connected") + return AndroidConnectivity::Connected; + if (name == u"Disconnected") + return AndroidConnectivity::Disconnected; + return AndroidConnectivity::Unknown; +} + +bool AndroidConnectivityManager::registerNatives() +{ + QJniEnvironment env; + QJniObject networkReceiver(networkInformationClass); + if (!networkReceiver.isValid()) + return false; + + jclass clazz = env->GetObjectClass(networkReceiver.object()); + static JNINativeMethod method = { "connectivityChanged", "()V", + reinterpret_cast<void *>(networkConnectivityChanged) }; + const bool ret = (env->RegisterNatives(clazz, &method, 1) == JNI_OK); + env->DeleteLocalRef(clazz); + return ret; +} + +QT_END_NAMESPACE |