Contents

module Watir
  class Element
    DOM_WAIT_JS = File.read("#{File.dirname(__FILE__)}/../extensions/js/waitForDom.js").freeze

    #
    # Returns true if DOM is changed within the element.
    #
    # @example Wait until DOM is changed inside element with default delay
    #   browser.div(id: 'test').wait_until(&:dom_changed?).click
    #
    # @example Wait until DOM is changed inside element with default delay
    #   browser.div(id: 'test').wait_until do |element|
    #     element.dom_changed?(delay: 5)
    #   end
    #
    # @param delay [Integer, Float] how long to wait for DOM modifications to start
    #

    def dom_changed?(delay: 1.1)
      element_call do
        begin
          script_timeout = driver.manage.timeouts.script_timeout
          driver.manage.timeouts.script_timeout = delay + Watir::DOM::Wait.minimum_script_timeout
          driver.execute_async_script(DOM_WAIT_JS, wd, delay)
        rescue Selenium::WebDriver::Error::JavascriptError => error
          # sometimes we start script execution before new page is loaded and
          # in rare cases ChromeDriver throws this error, we just swallow it and retry
          retry if error.message.include?('document unloaded while waiting for result')
          raise
        ensure
          driver.manage.timeouts.script_timeout = script_timeout
        end
      end
    end
  end # Element
end # Watir

Version data entries

1 entries across 1 versions & 1 rubygems

Version	Path
watir-dom-wait-0.4.0	lib/watir/dom/elements/element.rb