fixes keyboard positioning (#394)

src/overlaycontroller.cpp

@@ -1408,25 +1408,18 @@ void OverlayController::showKeyboard( QString existingText,
         1024,
         existingText.toStdString().c_str(),
         userValue );
+    setKeyboardPos();
+}
 
-    auto m_trackingUniverse = vr::VRCompositor()->GetTrackingSpace();
-
-    vr::EVROverlayError overlayerror;
-    // System Overlay Key
-    const auto systemOverlayKey = std::string( "system.systemui" );
-    vr::VROverlayHandle_t systemOverlayHandle;
-    overlayerror = vr::VROverlay()->FindOverlay( systemOverlayKey.c_str(),
-                                                 &systemOverlayHandle );
-    if ( overlayerror != vr::VROverlayError_None )
-    {
-        return;
-    }
-    vr::HmdMatrix34_t overlayPos;
-    vr::VROverlay()->GetOverlayTransformAbsolute(
-        systemOverlayHandle, &m_trackingUniverse, &overlayPos );
-    overlayPos.m[1][3] = overlayPos.m[1][3] - 1.0f;
-    vr::VROverlay()->SetKeyboardTransformAbsolute( m_trackingUniverse,
-                                                   &overlayPos );
+void OverlayController::setKeyboardPos()
+{
+    vr::HmdVector2_t emptyvec;
+    emptyvec.v[0] = 0;
+    emptyvec.v[1] = 0;
+    vr::HmdRect2_t empty;
+    empty.vTopLeft = emptyvec;
+    empty.vBottomRight = emptyvec;
+    vr::VROverlay()->SetKeyboardPositionForOverlay( m_ulOverlayHandle, empty );
 }
 
 void OverlayController::playActivationSound()