calabash wait for view with point to disappear

wait_for_view_at_point

def view_at_point?(point, view_class='view')
  res = query(view_class)
  res.each { |view_hash|
    center = {:x => view_hash['rect']['center_x'], :y => view_hash['rect']['center_y']}
    return true if center == point
  }
  false
end

def wait_for_view_at_point_to_disappear(point, opts={})
  default_opts = {:view_class => 'view',
                  :timeout => 14,
                  :post_timeout => 0.4,
                  :retry_frequency => 0.1}

  opts = default_opts.merge(opts)

  if opts[:timeout_message].nil?
    timeout = opts[:timeout]
    msg = "waited for '#{timeout}' sec but view with center point '#{point}' did not disappear"
    opts[:timeout_message] = msg
  end

  wait_for(opts) do
    not view_at_point?(point, opts[:view_class])
  end
end