set_text_helper

actions.ex

defmodule Helpers.Actions do
  def set_text(parent, %Query{} = query, text) when is_binary(text) do
    parent |> find(query)
    case Query.compile(query) do
      {:css, selector} ->
        parent
          |> pipeline_script("document.querySelector('#{selector}').value = '#{text}'")
          |> pipeline_script("document.querySelector('#{selector}').dispatchEvent(new Event('input'))")

      {:xpath, xpath} ->
        parent |> pipeline_script(build_set_text_script(xpath, text))
    end

    wait_for(parent, %{ query | conditions: [text: text, visible: true] })
  end


  defp build_set_text_script(xpath, text) do
    """
        var xpath = "#{escape_string xpath}";
        var xpathResult = document.evaluate(xpath, document, null, XPathResult.ANY_TYPE, null);
        var element = xpathResult.iterateNext();

        if (!element) {
          throw new Error("No element found for xpath: " + xpath);
        }

        element.value = '#{escape_string text}';
        element.dispatchEvent(new Event('input'));
    """
  end
  
  defp escape_string(string) do
    string
      |> String.replace("\"", "\\\"")
      |> String.replace("'", "\\'")
  end
  
  def wait_for(session, %Query{} = query) do
    session |> find(query)
    session
  end
end