module Ferrum::Page::Frames

def subscribe_frame_stopped_loading
  on("Page.frameStoppedLoading") do |params|
    # `DOM.performSearch` doesn't work without getting #document node first.
    # It returns node with nodeId 1 and nodeType 9 from which descend the
    # tree and we save it in a variable because if we call that again root
    # node will change the id and all subsequent nodes have to change id too.
    if @main_frame.id == params["frameId"]
      @event.set if idling?
      document_node_id
    end
    frame = @frames[params["frameId"]]
    frame&.state = :stopped_loading
    @event.set if idling?
  end
end