Android: Add ability to (dis)connect to BTLE devices on Android

and keep tracking the connection state

Change-Id: If4d05fa18c78802ae06096884fba78eed123e77f
Reviewed-by: Timur Pocheptsov <Timur.Pocheptsov@digia.com>
Reviewed-by: Alex Blasche <alexander.blasche@digia.com>

1 files changed, 141 insertions, 0 deletions

diff --git a/src/bluetooth/qlowenergycontroller_android.cpp b/src/bluetooth/qlowenergycontroller_android.cpp
new file mode 100644
index 00000000..77cdb12a
--- /dev/null
+++ b/src/bluetooth/qlowenergycontroller_android.cpp
@@ -0,0 +1,141 @@
+/****************************************************************************
+**
+** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of the QtBluetooth 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 Digia. For licensing terms and
+** conditions see http://qt.digia.com/licensing. For further information
+** use the contact form at http://qt.digia.com/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.
+**
+** In addition, as a special exception, Digia gives you certain additional
+** rights. These rights are described in the Digia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qlowenergycontroller_p.h"
+#include <QtCore/QLoggingCategory>
+#include <QtAndroidExtras/QAndroidJniEnvironment>
+
+QT_BEGIN_NAMESPACE
+
+Q_DECLARE_LOGGING_CATEGORY(QT_BT_ANDROID)
+
+QLowEnergyControllerPrivate::QLowEnergyControllerPrivate()
+    : QObject(),
+      state(QLowEnergyController::UnconnectedState),
+      error(QLowEnergyController::NoError),
+      hub(0)
+{
+}
+
+QLowEnergyControllerPrivate::~QLowEnergyControllerPrivate()
+{
+}
+
+void QLowEnergyControllerPrivate::connectToDevice()
+{
+    // required to pass unit test on default backend
+    if (remoteDevice.isNull()) {
+        qWarning() << "Invalid/null remote device address";
+        setError(QLowEnergyController::UnknownRemoteDeviceError);
+        return;
+    }
+
+    setState(QLowEnergyController::ConnectingState);
+
+    if (!hub) {
+        hub = new LowEnergyNotificationHub(remoteDevice, this);
+        connect(hub, &LowEnergyNotificationHub::connectionUpdated,
+                this, &QLowEnergyControllerPrivate::connectionUpdated);
+    }
+
+    if (!hub->javaObject().isValid()) {
+        qCWarning(QT_BT_ANDROID) << "Cannot initiate QtBluetoothLE";
+        setError(QLowEnergyController::UnknownError);
+        setState(QLowEnergyController::UnconnectedState);
+        return;
+    }
+
+    bool result = hub->javaObject().callMethod<jboolean>("connect");
+    if (!result) {
+        setError(QLowEnergyController::UnknownError);
+        setState(QLowEnergyController::UnconnectedState);
+        return;
+    }
+}
+
+void QLowEnergyControllerPrivate::disconnectFromDevice()
+{
+    setState(QLowEnergyController::ClosingState);
+
+    hub->javaObject().callMethod<void>("disconnect");
+}
+
+void QLowEnergyControllerPrivate::discoverServices()
+{
+
+}
+
+void QLowEnergyControllerPrivate::discoverServiceDetails(const QBluetoothUuid &/*service*/)
+{
+
+}
+
+void QLowEnergyControllerPrivate::writeCharacteristic(const QSharedPointer<QLowEnergyServicePrivate> /*service*/,
+        const QLowEnergyHandle /*charHandle*/,
+        const QByteArray &/*newValue*/,
+        bool /*writeWithResponse*/)
+{
+
+}
+
+void QLowEnergyControllerPrivate::writeDescriptor(
+        const QSharedPointer<QLowEnergyServicePrivate> /*service*/,
+        const QLowEnergyHandle /*charHandle*/,
+        const QLowEnergyHandle /*descriptorHandle*/,
+        const QByteArray &/*newValue*/)
+{
+
+}
+
+void QLowEnergyControllerPrivate::connectionUpdated(
+        QLowEnergyController::ControllerState newState,
+        QLowEnergyController::Error errorCode)
+{
+    Q_Q(QLowEnergyController);
+
+    qCDebug(QT_BT_ANDROID) << "Connection updated" << errorCode << newState;
+    if (errorCode != QLowEnergyController::NoError)
+        setError(errorCode);
+
+    QLowEnergyController::ControllerState oldState = state;
+    setState(newState);
+    if (newState == QLowEnergyController::UnconnectedState
+            && oldState != QLowEnergyController::UnconnectedState) {
+        emit q->disconnected();
+    } else if (newState == QLowEnergyController::ConnectedState
+               && oldState != QLowEnergyController::ConnectedState ) {
+        emit q->connected();
+    }
+}
+
+QT_END_NAMESPACE