Add missing InvalidBluetoothAdapterError to QML discovery model

QBluetoothServiceDiscoveryAgent::InvalidBluetoothAdapter was introduced
by Qt 5.3 but never added to the QML BluetoothDiscoveryModel. This patch
fixes the problem.

This was noticed due to a crash on Android emulator.

Change-Id: I652576929659ca370216133154e36158e8425711
Reviewed-by: Timur Pocheptsov <Timur.Pocheptsov@digia.com>
Reviewed-by: Alex Blasche <alexander.blasche@theqtcompany.com>

3 files changed, 30 insertions, 3 deletions

diff --git a/src/imports/bluetooth/plugins.qmltypes b/src/imports/bluetooth/plugins.qmltypes
index f7d0d08d..cf2146e2 100644
--- a/src/imports/bluetooth/plugins.qmltypes
+++ b/src/imports/bluetooth/plugins.qmltypes
@@ -30,7 +30,8 @@ Module {
                 "NoError": 0,
                 "InputOutputError": 1,
                 "PoweredOffError": 2,
-                "UnknownError": 3
+                "UnknownError": 3,
+                "InvalidBluetoothAdapterError": 4
             }
         }
         Property { name: "error"; type: "Error"; isReadonly: true }
diff --git a/src/imports/bluetooth/qdeclarativebluetoothdiscoverymodel.cpp b/src/imports/bluetooth/qdeclarativebluetoothdiscoverymodel.cpp
index 20f47f65..01a53bfa 100644
--- a/src/imports/bluetooth/qdeclarativebluetoothdiscoverymodel.cpp
+++ b/src/imports/bluetooth/qdeclarativebluetoothdiscoverymodel.cpp
@@ -151,7 +151,19 @@ void QDeclarativeBluetoothDiscoveryModel::componentComplete()
 
 void QDeclarativeBluetoothDiscoveryModel::errorDiscovery(QBluetoothServiceDiscoveryAgent::Error error)
 {
-    d->m_error = static_cast<QDeclarativeBluetoothDiscoveryModel::Error>(error);
+    switch (error) {
+    case QBluetoothServiceDiscoveryAgent::InvalidBluetoothAdapterError:
+        d->m_error = QDeclarativeBluetoothDiscoveryModel::InvalidBluetoothAdapterError; break;
+    case QBluetoothServiceDiscoveryAgent::NoError:
+        d->m_error = QDeclarativeBluetoothDiscoveryModel::NoError; break;
+    case QBluetoothServiceDiscoveryAgent::InputOutputError:
+        d->m_error = QDeclarativeBluetoothDiscoveryModel::InputOutputError; break;
+    case QBluetoothServiceDiscoveryAgent::PoweredOffError:
+        d->m_error = QDeclarativeBluetoothDiscoveryModel::PoweredOffError; break;
+    case QBluetoothServiceDiscoveryAgent::UnknownError:
+        d->m_error = QDeclarativeBluetoothDiscoveryModel::UnknownError; break;
+    }
+
     emit errorChanged();
 }
 
@@ -187,6 +199,12 @@ void QDeclarativeBluetoothDiscoveryModel::clearModel()
          \li An IO failure occurred during device discovery
     \row \li \c BluetoothDiscoveryModel.PoweredOffError
          \li The bluetooth device is not powered on.
+    \row \li \c BluetoothDiscoveryModel.InvalidBluetoothAdapterError
+         \li There is no default Bluetooth device to perform the
+             service discovery. The model always uses the local default adapter.
+             Specifying a default adapter is not possible. If that's required,
+             \l QBluetoothServiceDiscoveryAgent should be directly used. This
+             value was introduced by Qt 5.4.
     \row \li \c BluetoothDiscoveryModel.UnknownError
          \li An unknown error occurred.
     \endtable
@@ -407,6 +425,13 @@ void QDeclarativeBluetoothDiscoveryModel::setRunning(bool running)
                 //qDebug() << "Minimal Discovery";
                 d->m_serviceAgent->start(QBluetoothServiceDiscoveryAgent::MinimalDiscovery);
             }
+
+            // we could not start service discovery
+            if (!d->m_serviceAgent->isActive()) {
+                d->m_running = false;
+                errorDiscovery(d->m_serviceAgent->error());
+                return;
+            }
         }
     }
 
diff --git a/src/imports/bluetooth/qdeclarativebluetoothdiscoverymodel_p.h b/src/imports/bluetooth/qdeclarativebluetoothdiscoverymodel_p.h
index 279fb063..1834ce36 100644
--- a/src/imports/bluetooth/qdeclarativebluetoothdiscoverymodel_p.h
+++ b/src/imports/bluetooth/qdeclarativebluetoothdiscoverymodel_p.h
@@ -94,7 +94,8 @@ public:
         NoError,
         InputOutputError,
         PoweredOffError,
-        UnknownError
+        UnknownError,
+        InvalidBluetoothAdapterError
     };
 
     Error error() const;