winrt: Early return from searchAndLock if camera not active.

Change-Id: If2279db9cffbc5d06f0d662b6f942b6985034675
Reviewed-by: Maurice Kalinowski <maurice.kalinowski@theqtcompany.com>
Reviewed-by: Matti Malinen <matti.malinen@digia.com>
Reviewed-by: Oliver Wolff <oliver.wolff@theqtcompany.com>

1 files changed, 6 insertions, 5 deletions

diff --git a/src/plugins/winrt/qwinrtcameralockscontrol.cpp b/src/plugins/winrt/qwinrtcameralockscontrol.cpp
index 11e576be0..8528d16fb 100644
--- a/src/plugins/winrt/qwinrtcameralockscontrol.cpp
+++ b/src/plugins/winrt/qwinrtcameralockscontrol.cpp
@@ -66,13 +66,14 @@ QCamera::LockStatus QWinRTCameraLocksControl::lockStatus(QCamera::LockType lock)
 
 void QWinRTCameraLocksControl::searchAndLock(QCamera::LockTypes locks)
 {
-    if (locks.testFlag(QCamera::LockFocus)) {
+    QWinRTCameraControl *cameraControl = qobject_cast<QWinRTCameraControl *>(parent());
+    Q_ASSERT(cameraControl);
+    if (cameraControl->state() != QCamera::ActiveState)
+        return;
+    else if (locks.testFlag(QCamera::LockFocus))
         QMetaObject::invokeMethod(this, "searchAndLockFocus", Qt::QueuedConnection);
-    } else {
-        QWinRTCameraControl *cameraControl = qobject_cast<QWinRTCameraControl *>(parent());
-        Q_ASSERT(cameraControl);
+    else
         cameraControl->emitError(QCamera::InvalidRequestError, QStringLiteral("Unsupported camera lock type."));
-    }
 }
 
 void QWinRTCameraLocksControl::unlock(QCamera::LockTypes locks)