class Capybara::RSpecMatchers::Matcher

def initialize(*args, &filter_block)
  @args = args.dup
  @filter_block = filter_block
end

def session_options
  @context_el ||= nil
  if @context_el.respond_to? :session_options
    @context_el.session_options
  elsif @context_el.respond_to? :current_scope
    @context_el.current_scope.session_options
  else
    Capybara.session_options
  end
end

def session_query_args
  if @args.last.is_a? Hash
    @args.last[:session_options] = session_options
  else
    @args.push(session_options: session_options)
  end
  @args
end

def wrap(actual)
  actual = actual.to_capybara_node if actual.respond_to?(:to_capybara_node)
  @context_el = if actual.respond_to?(:has_selector?)
    actual
  else
    Capybara.string(actual.to_s)
  end
end

def wrap_does_not_match?(actual)
  yield(wrap(actual))
rescue Capybara::ExpectationNotMet => err
  @failure_message_when_negated = err.message
  false
end

def wrap_matches?(actual)
  yield(wrap(actual))
rescue Capybara::ExpectationNotMet => err
  @failure_message = err.message
  false
end