Add bluetooth available check and fix discovery issue for iOS

libnymea-app-core/wifisetup/bluetoothdeviceinfos.h

@@ -49,7 +49,7 @@ public:
     Q_INVOKABLE BluetoothDeviceInfo *get(int index) const;
 
     void addBluetoothDeviceInfo(BluetoothDeviceInfo *deviceInfo);
-    void clearModel();
+    Q_INVOKABLE void clearModel();
 
 protected:
     QHash<int, QByteArray> roleNames() const;

libnymea-app-core/wifisetup/bluetoothdiscovery.cpp

@@ -38,6 +38,12 @@ BluetoothDiscovery::BluetoothDiscovery(QObject *parent) :
         return;
     }
 
+    if (localDevice.allDevices().isEmpty()) {
+        qWarning() << "BluetoothDiscovery: there is no bluetooth device available currently.";
+        setBluetoothAvailable(false);
+        return;
+    }
+
     setBluetoothAvailable(true);
 
     if (localDevice.allDevices().count() > 1) {
@@ -124,7 +130,7 @@ void BluetoothDiscovery::deviceDiscovered(const QBluetoothDeviceInfo &deviceInfo
 
     qDebug() << "BluetoothDiscovery: [+]" << deviceInformation->name() << "(" << deviceInformation->address() << ")" << (isLowEnergy ? "LE" : "");
 
-    //
+
     if (!isLowEnergy || deviceInformation->name().isEmpty()) {
         delete deviceInformation;
         return;
@@ -148,6 +154,8 @@ void BluetoothDiscovery::discoveryFinished()
 {
     qDebug() << "BluetoothDiscovery: Discovery finished";
     setDiscovering(false);
+    if (m_enabled)
+        start();
 }
 
 void BluetoothDiscovery::onError(const QBluetoothDeviceDiscoveryAgent::Error &error)
@@ -158,11 +166,14 @@ void BluetoothDiscovery::onError(const QBluetoothDeviceDiscoveryAgent::Error &er
 
 void BluetoothDiscovery::start()
 {
+    m_enabled = true;
+
+    if (!m_discoveryAgent)
+        return;
+
     if (m_discoveryAgent->isActive())
         m_discoveryAgent->stop();
 
-    m_deviceInfos->clearModel();
-
     qDebug() << "BluetoothDiscovery: Start discovering.";
     m_discoveryAgent->start();
     setDiscovering(true);
@@ -170,6 +181,8 @@ void BluetoothDiscovery::start()
 
 void BluetoothDiscovery::stop()
 {
+    m_enabled = false;
+
     qDebug() << "BluetoothDiscovery: Stop discovering.";
     m_discoveryAgent->stop();
     setDiscovering(false);

libnymea-app-core/wifisetup/bluetoothdiscovery.h

@@ -54,6 +54,7 @@ private:
     QBluetoothDeviceDiscoveryAgent *m_discoveryAgent  = nullptr;
     BluetoothDeviceInfos *m_deviceInfos;
 
+    bool m_enabled = false;
     bool m_discovering = false;
     bool m_bluetoothAvailable = false;
     bool m_bluetoothEnabled = false;

nymea-app/ui/ConnectPage.qml

@@ -80,8 +80,7 @@ Page {
                 title: qsTr("Connect %1").arg(app.systemName)
                 model: ListModel {
                     ListElement { iconSource: "../images/network-vpn.svg"; text: qsTr("Manual connection"); page: "connection/ManualConnectPage.qml" }
-                    // Disabled for now as it's too buggy still
+                    ListElement { iconSource: "../images/bluetooth.svg"; text: qsTr("Wireless setup"); page: "connection/BluetoothDiscoveryPage.qml"; }
-//                    ListElement { iconSource: "../images/bluetooth.svg"; text: qsTr("Wireless setup"); page: "connection/BluetoothDiscoveryPage.qml" }
                     ListElement { iconSource: "../images/private-browsing.svg"; text: qsTr("Demo mode"); page: "" }
                     ListElement { iconSource: "../images/stock_application.svg"; text: qsTr("App settings"); page: "AppSettingsPage.qml" }
                 }

nymea-app/ui/connection/BluetoothDiscoveryPage.qml

@@ -13,7 +13,13 @@ Page {
 
         HeaderButton {
             imageSource: Qt.resolvedUrl("../images/refresh.svg")
-            onClicked: Engine.bluetoothDiscovery.start()
+            onClicked: {
+                if (Engine.bluetoothDiscovery.bluetoothAvailable) {
+                    Engine.bluetoothDiscovery.deviceInfos.clearModel()
+                    Engine.bluetoothDiscovery.start()
+                }
+            }
+            enabled: Engine.bluetoothDiscovery.bluetoothAvailable && !Engine.bluetoothDiscovery.discovering
         }
     }
 
@@ -37,6 +43,8 @@ Page {
         pageStack.push(connectingPageComponent, { name: name, address: btAddress } )
     }
 
+
+
     ColumnLayout {
         anchors.fill: parent
         spacing: app.margins
@@ -46,9 +54,10 @@ Page {
             Layout.leftMargin: app.margins
             Layout.topMargin: app.margins
             Layout.rightMargin: app.rightMargin
+
             Label {
                 Layout.fillWidth: true
-                text: qsTr("Searching for %1 boxes via Bluetooth.").arg(app.systemName)
+                text: Engine.bluetoothDiscovery.bluetoothAvailable ? qsTr("Searching for %1 boxes via Bluetooth.").arg(app.systemName) : qsTr("Uh oh! Bluetooth is not available. Please make sure Bluetooth is enabled on this device.")
                 wrapMode: Text.WordWrap
             }
 
@@ -88,6 +97,9 @@ Page {
             spacing: app.margins
             Label {
                 Layout.fillWidth: true
+                wrapMode: Text.WordWrap
+                maximumLineCount: 2
+                elide: Text.ElideRight
                 text: qsTr("Troubles finding your box? Try this!")
             }
             Button {