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/****************************************************************************
**
** Copyright (C) 2016 BasysKom GmbH
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtNfc module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:COMM$
**
** 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.
**
** $QT_END_LICENSE$
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
****************************************************************************/
#include "androidmainnewintentlistener_p.h"
#include "android/androidjninfc_p.h"
#include "qdebug.h"
#include <QtGui/QGuiApplication>
#include <QtAndroidExtras/QAndroidJniObject>
QT_BEGIN_ANDROIDNFC_NAMESPACE
MainNfcNewIntentListener::MainNfcNewIntentListener()
: listeners(), listenersLock(), paused(true), receiving(false)
{
QtAndroidPrivate::registerNewIntentListener(this);
QtAndroidPrivate::registerResumePauseListener(this);
}
MainNfcNewIntentListener::~MainNfcNewIntentListener()
{
QtAndroidPrivate::unregisterNewIntentListener(this);
QtAndroidPrivate::unregisterResumePauseListener(this);
}
bool MainNfcNewIntentListener::handleNewIntent(JNIEnv */*env*/, jobject intent)
{
// Only intents with a tag are relevant
if (!AndroidNfc::getTag(intent).isValid())
return false;
listenersLock.lockForRead();
for (AndroidNfc::AndroidNfcListenerInterface *listener : qAsConst(listeners)) {
listener->newIntent(QAndroidJniObject(intent));
}
listenersLock.unlock();
return true;
}
bool MainNfcNewIntentListener::registerListener(AndroidNfcListenerInterface *listener)
{
static bool firstListener = true;
if (firstListener) {
QAndroidJniObject intent = AndroidNfc::getStartIntent();
if (intent.isValid()) {
listener->newIntent(intent);
}
paused = static_cast<QGuiApplication*>(QGuiApplication::instance())->applicationState() != Qt::ApplicationActive;
}
firstListener = false;
listenersLock.lockForWrite();
if (!listeners.contains(listener))
listeners.push_back(listener);
listenersLock.unlock();
updateReceiveState();
return true;
}
bool MainNfcNewIntentListener::unregisterListener(AndroidNfcListenerInterface *listener)
{
listenersLock.lockForWrite();
listeners.removeOne(listener);
listenersLock.unlock();
updateReceiveState();
return true;
}
void MainNfcNewIntentListener::handleResume()
{
paused = false;
updateReceiveState();
}
void MainNfcNewIntentListener::handlePause()
{
paused = true;
updateReceiveState();
}
void MainNfcNewIntentListener::updateReceiveState()
{
if (paused) {
// We were paused while receiving, so we stop receiving.
if (receiving) {
AndroidNfc::stopDiscovery();
receiving = false;
}
return;
}
// We reach here, so we are not paused.
listenersLock.lockForRead();
// We have nfc listeners and do not receive. Switch on.
if (listeners.count() && !receiving)
receiving = AndroidNfc::startDiscovery();
// we have no nfc listeners and do receive. Switch off.
if (!listeners.count() && receiving) {
AndroidNfc::stopDiscovery();
receiving = false;
}
listenersLock.unlock();
}
QT_END_ANDROIDNFC_NAMESPACE
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