Minor UI updates

assets/qml/Panes/SetupPanes/Bluetooth.qml

@@ -80,6 +80,7 @@ Control {
                 opacity: enabled ? 1 : 0.5
                 icon.color: Cpp_ThemeManager.text
                 icon.source: "qrc:/icons/refresh.svg"
+                enabled: !Cpp_IO_Bluetooth.isScanning
                 onClicked: Cpp_IO_Bluetooth.beginScanning()
             }
         }
@@ -114,6 +115,7 @@ Control {
         //
         RowLayout {
             spacing: app.spacing
+            visible: _deviceCombo.currentIndex >= 1
 
             Label {
                 id: rssiLabel
@@ -163,6 +165,30 @@ Control {
             }
         }
 
+        //
+        // Not at BLE device warning
+        //
+        RowLayout {
+            spacing: app.spacing
+            visible: opacity > 0
+            opacity: Cpp_IO_Bluetooth.isScanning ? 1 : 0
+
+            Behavior on opacity {NumberAnimation{}}
+
+            BusyIndicator {
+                width: 16
+                height: 16
+                Layout.minimumWidth: 16
+                Layout.minimumHeight: 16
+                running: Cpp_IO_Bluetooth.isScanning
+            }
+
+            Label {
+                Layout.fillWidth: true
+                text: qsTr("Scanning....")
+            }
+        }
+
         //
         // Spacer
         //

src/IO/DataSources/Bluetooth.cpp

@@ -32,6 +32,12 @@ IO::DataSources::Bluetooth::Bluetooth()
             &IO::DataSources::Bluetooth::deviceUpdated);
     connect(&m_discovery, &QBluetoothDeviceDiscoveryAgent::deviceDiscovered, this,
             &IO::DataSources::Bluetooth::deviceDiscovered);
+    connect(&m_discovery, &QBluetoothDeviceDiscoveryAgent::canceled, this,
+            &IO::DataSources::Bluetooth::scanningChanged);
+    connect(&m_discovery, &QBluetoothDeviceDiscoveryAgent::finished, this,
+            &IO::DataSources::Bluetooth::scanningChanged);
+    connect(&m_discovery, SIGNAL(error(QBluetoothDeviceDiscoveryAgent::Error)), this,
+            SLOT(onErrorOcurred(QBluetoothDeviceDiscoveryAgent::Error)));
 
     // Start the device discovery process
     QTimer::singleShot(1000, this, &IO::DataSources::Bluetooth::beginScanning);
@@ -67,6 +73,15 @@ bool IO::DataSources::Bluetooth::supported() const
     return m_supported;
 }
 
+/**
+ * Returns @c true if the bluetooth discovery service is searching
+ * for devices
+ */
+bool IO::DataSources::Bluetooth::isScanning() const
+{
+    return m_discovery.isActive();
+}
+
 /**
  * Returns the index of the currently selected device
  */
@@ -113,6 +128,7 @@ void IO::DataSources::Bluetooth::beginScanning()
     // Update UI
     Q_EMIT rssiChanged();
     Q_EMIT devicesChanged();
+    Q_EMIT scanningChanged();
     Q_EMIT servicesChanged();
     Q_EMIT supportedChanged();
     Q_EMIT currentDeviceChanged();
@@ -226,6 +242,15 @@ void IO::DataSources::Bluetooth::deviceUpdated(const QBluetoothDeviceInfo &info,
     refreshDevices();
 }
 
+/**
+ * Prints the device discovery error that have occurred
+ */
+void IO::DataSources::Bluetooth::onErrorOcurred(
+    QBluetoothDeviceDiscoveryAgent::Error error)
+{
+    qDebug() << error << m_discovery.errorString();
+}
+
 #ifdef SERIAL_STUDIO_INCLUDE_MOC
 #    include "moc_Bluetooth.cpp"
 #endif

src/IO/DataSources/Bluetooth.h

@@ -58,11 +58,15 @@ class Bluetooth : public QObject
     Q_PROPERTY(bool supported
                READ supported
                NOTIFY supportedChanged)
+    Q_PROPERTY(bool isScanning
+               READ isScanning
+               NOTIFY scanningChanged)
     // clang-format on
 
 Q_SIGNALS:
     void rssiChanged();
     void devicesChanged();
+    void scanningChanged();
     void servicesChanged();
     void supportedChanged();
     void currentDeviceChanged();
@@ -81,6 +85,7 @@ public:
 
     QString rssi() const;
     bool supported() const;
+    bool isScanning() const;
     int currentDevice() const;
     QStringList devices() const;
     QStringList services() const;
@@ -94,6 +99,7 @@ private Q_SLOTS:
     void deviceDiscovered(const QBluetoothDeviceInfo &info);
     void deviceUpdated(const QBluetoothDeviceInfo &info,
                        QBluetoothDeviceInfo::Fields updatedFields);
+    void onErrorOcurred(QBluetoothDeviceDiscoveryAgent::Error error);
 
 private:
     QString m_rssi;