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/****************************************************************************
**
** Copyright (C) 2013 Centria research and development
** Contact: http://www.qt.io/licensing/
**
** This file is part of the QtNfc module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL21$
** 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 http://www.qt.io/terms-conditions. For further
** information use the contact form at http://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 2.1 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** As a special exception, The Qt Company gives you certain additional
** rights. These rights are described in The Qt Company LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "androidjninfc_p.h"
#include <android/log.h>
#include "androidmainnewintentlistener_p.h"
#include "qglobal.h"
#include "qbytearray.h"
#include "qdebug.h"
static JavaVM *javaVM = 0;
static jclass nfcClass;
static jmethodID startDiscoveryId;
static jmethodID stopDiscoveryId;
static jmethodID isAvailableId;
static AndroidNfc::MainNfcNewIntentListener mainListener;
QT_BEGIN_ANDROIDNFC_NAMESPACE
AttachedJNIEnv::AttachedJNIEnv()
{
Q_ASSERT_X(javaVM != 0, "constructor", "javaVM pointer is null");
attached = false;
if (javaVM->GetEnv((void**)&jniEnv, JNI_VERSION_1_6) < 0) {
if (javaVM->AttachCurrentThread(&jniEnv, NULL) < 0) {
__android_log_print(ANDROID_LOG_ERROR, "Qt", "AttachCurrentThread failed");
jniEnv = 0;
return;
}
attached = true;
}
}
AttachedJNIEnv::~AttachedJNIEnv()
{
if (attached)
javaVM->DetachCurrentThread();
}
bool startDiscovery()
{
//__android_log_print(ANDROID_LOG_INFO, "Qt", "QtNfc::startDiscovery()");
AttachedJNIEnv aenv;
if (!aenv.jniEnv)
return false;
return aenv.jniEnv->CallStaticBooleanMethod(nfcClass, startDiscoveryId);
}
bool isAvailable()
{
//__android_log_print(ANDROID_LOG_INFO, "Qt", "QtNfc::isAvailable()");
AttachedJNIEnv aenv;
if (!aenv.jniEnv)
return false;
return aenv.jniEnv->CallStaticBooleanMethod(nfcClass, isAvailableId);
}
bool stopDiscovery()
{
__android_log_print(ANDROID_LOG_INFO, "Qt", "QtNfc::stopDiscovery()");
AttachedJNIEnv aenv;
if (!aenv.jniEnv)
return false;
return aenv.jniEnv->CallStaticBooleanMethod(nfcClass, stopDiscoveryId);
}
bool registerListener(AndroidNfcListenerInterface *listener)
{
return mainListener.registerListener(listener);
}
bool unregisterListener(AndroidNfcListenerInterface *listener)
{
return mainListener.unregisterListener(listener);
}
jobject getTag(JNIEnv *env, jobject intent)
{
jclass intentClass = env->GetObjectClass(intent);
Q_ASSERT_X(intentClass != 0, "getTag", "could not get Intent class");
jmethodID getParcelableExtraMID = env->GetMethodID(intentClass,
"getParcelableExtra",
"(Ljava/lang/String;)Landroid/os/Parcelable;");
Q_ASSERT_X(getParcelableExtraMID != 0, "getTag", "could not get method ID for getParcelableExtra()");
jclass nfcAdapterClass = env->FindClass("android/nfc/NfcAdapter");
Q_ASSERT_X(nfcAdapterClass != 0, "getTag", "could not find NfcAdapter class");
jfieldID extraTagFID = env->GetStaticFieldID(nfcAdapterClass, "EXTRA_TAG", "Ljava/lang/String;");
Q_ASSERT_X(extraTagFID != 0, "getTag", "could not get field ID for EXTRA_TAG");
jobject extraTag = env->GetStaticObjectField(nfcAdapterClass, extraTagFID);
Q_ASSERT_X(extraTag != 0, "getTag", "could not get EXTRA_TAG");
jobject tag = env->CallObjectMethod(intent, getParcelableExtraMID, extraTag);
Q_ASSERT_X(tag != 0, "getTag", "could not get Tag object");
return tag;
}
QT_END_ANDROIDNFC_NAMESPACE
static const char logTag[] = "Qt";
static const char classErrorMsg[] = "Can't find class \"%s\"";
static const char methodErrorMsg[] = "Can't find method \"%s%s\"";
#define FIND_AND_CHECK_CLASS(CLASS_NAME) \
clazz = env->FindClass(CLASS_NAME); \
if (!clazz) { \
return JNI_FALSE; \
}
#define GET_AND_CHECK_STATIC_METHOD(VAR, CLASS, METHOD_NAME, METHOD_SIGNATURE) \
VAR = env->GetStaticMethodID(CLASS, METHOD_NAME, METHOD_SIGNATURE); \
if (!VAR) { \
return JNI_FALSE; \
}
Q_DECL_EXPORT jint JNICALL JNI_OnLoad(JavaVM *vm, void * /*reserved*/)
{
//__android_log_print(ANDROID_LOG_INFO, "Qt", "JNI_OnLoad for QtNfc");
JNIEnv* env;
if (vm->GetEnv(reinterpret_cast<void**>(&env), JNI_VERSION_1_6) != JNI_OK) {
return -1;
}
jclass clazz;
FIND_AND_CHECK_CLASS("org/qtproject/qt5/android/nfc/QtNfc");
nfcClass = static_cast<jclass>(env->NewGlobalRef(clazz));
GET_AND_CHECK_STATIC_METHOD(startDiscoveryId, nfcClass, "start", "()Z");
GET_AND_CHECK_STATIC_METHOD(stopDiscoveryId, nfcClass, "stop", "()Z");
GET_AND_CHECK_STATIC_METHOD(isAvailableId, nfcClass, "isAvailable", "()Z");
javaVM = vm;
return JNI_VERSION_1_6;
}
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