Method OnTap

libs/drape_frontend/frontend_renderer.cpp:1978–2011

}

void FrontendRenderer::OnTap(m2::PointD const & pt, bool isLongTap)
{
  if (m_blockTapEvents)
    return;

  double const halfSize = VisualParams::Instance().GetTouchRectRadius();
  m2::PointD sizePoint(halfSize, halfSize);
  m2::RectD selectRect(pt - sizePoint, pt + sizePoint);

  ScreenBase const & screen = m_userEventStream.GetCurrentScreen();
  bool isMyPosition = false;

  m2::PointD const pxPoint2d = screen.P3dtoP(pt);
  m2::PointD mercator = screen.PtoG(pxPoint2d);

  // Long tap should show/hide the interface. There is no need to detect tapped features.
  if (isLongTap)
  {
    m_tapEventInfoHandler({mercator, isLongTap, isMyPosition, FeatureID(), kml::kInvalidMarkId});
    return;
  }

  if (m_myPositionController->IsModeHasPosition())
  {
    m2::PointD const pixelPos = screen.PtoP3d(screen.GtoP(m_myPositionController->Position()));
    isMyPosition = selectRect.IsPointInside(pixelPos);
    if (isMyPosition)
      mercator = m_myPositionController->Position();
  }

  ASSERT(m_tapEventInfoHandler != nullptr, ());
  auto [featureId, markId] = GetVisiblePOI(selectRect);
  m_tapEventInfoHandler({mercator, isLongTap, isMyPosition, featureId, markId});
}

void FrontendRenderer::OnForceTap(m2::PointD const & pt)
{