From 1ab6b50a34a0127b1802b0439b9317d0245b6769 Mon Sep 17 00:00:00 2001
From: Dirk Hohndel <dirk@hohndel.org>
Date: Mon, 29 May 2017 11:56:13 -0700
Subject: [PATCH] QML UI: start BT discovery

So far all this does is list all the BT devices that it finds
(and I worry if this will have negative battery implications
on a mobile device), but this should allow us to connect to
a standard BT dive computer (but that will of course require
more code to pick the right device).

Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
---
 mobile-widgets/qmlmanager.cpp | 20 ++++++++++++++++++++
 mobile-widgets/qmlmanager.h   | 11 +++++++++++
 2 files changed, 31 insertions(+)

diff --git a/mobile-widgets/qmlmanager.cpp b/mobile-widgets/qmlmanager.cpp
index 4d2999049..f10564a94 100644
--- a/mobile-widgets/qmlmanager.cpp
+++ b/mobile-widgets/qmlmanager.cpp
@@ -89,6 +89,18 @@ QMLManager::QMLManager() : m_locationServiceEnabled(false),
 	m_credentialStatus(UNKNOWN),
 	alreadySaving(false)
 {
+#if BT_SUPPORT
+	if (localBtDevice.isValid()) {
+		localBtDevice.powerOn();
+		QString localDeviceName = "localDevice " + localBtDevice.name() + " is valid, starting discovery";
+		appendTextToLog(localDeviceName.toUtf8().data());
+		discoveryAgent = new QBluetoothDeviceDiscoveryAgent(this);
+		connect(discoveryAgent, &QBluetoothDeviceDiscoveryAgent::deviceDiscovered, this, &QMLManager::btDeviceDiscovered);
+		discoveryAgent->start();
+	} else {
+		appendTextToLog("localBtDevice isn't valid");
+	}
+#endif
 	m_instance = this;
 	m_lastDevicePixelRatio = qApp->devicePixelRatio();
 	connect(qobject_cast<QApplication *>(QApplication::instance()), &QApplication::applicationStateChanged, this, &QMLManager::applicationStateChanged);
@@ -191,6 +203,14 @@ void QMLManager::mergeLocalRepo()
 	process_dives(true, false);
 }
 
+#if BT_SUPPORT
+void QMLManager::btDeviceDiscovered(const QBluetoothDeviceInfo &device)
+{
+	QString newDevice = "Found new device " + device.name() + " (" + device.address().toString() + ")";
+	appendTextToLog(newDevice);
+}
+#endif
+
 void QMLManager::finishSetup()
 {
 	// Initialize cloud credentials.
diff --git a/mobile-widgets/qmlmanager.h b/mobile-widgets/qmlmanager.h
index db170704b..16085dc44 100644
--- a/mobile-widgets/qmlmanager.h
+++ b/mobile-widgets/qmlmanager.h
@@ -7,6 +7,10 @@
 #include <QNetworkAccessManager>
 #include <QScreen>
 #include <QElapsedTimer>
+#if BT_SUPPORT
+#include <QBluetoothLocalDevice>
+#include <QBluetoothDeviceDiscoveryAgent>
+#endif
 
 #include "core/gpslocation.h"
 #include "qt-models/divelistmodel.h"
@@ -114,6 +118,9 @@ public:
 	bool showPin() const;
 	void setShowPin(bool enable);
 	Q_INVOKABLE QStringList getDCListFromVendor(const QString& vendor);
+#if BT_SUPPORT
+	void btDeviceDiscovered(const QBluetoothDeviceInfo &device);
+#endif
 
 public slots:
 	void applicationStateChanged(Qt::ApplicationState state);
@@ -196,6 +203,10 @@ private:
 	bool checkDepth(DiveObjectHelper *myDive, struct dive *d, QString depth);
 	bool currentGitLocalOnly;
 	bool m_showPin;
+#if BT_SUPPORT
+	QBluetoothLocalDevice localBtDevice;
+	QBluetoothDeviceDiscoveryAgent *discoveryAgent;
+#endif
 
 signals:
 	void cloudUserNameChanged();