Wait till element is presented

[tikolakin]

Hi there
Just wondered how we should wait elements
For ex.

 public function openLoginForm() {
        $login_link = $this->findLink('Login');
        if ($login_link) {
            $login_link->click();
        }
        // The next page element will be presented after js is finished.
       // for now. it always ElementNotFoundException
        return $this->getElement('Login Popup');
    }

I used to wait ajax with the following

$this->getSession()->wait(30000, '(typeof(jQuery)=="undefined" || (0 === jQuery.active && 0 === jQuery(\':animated\').length))');

but page classes seem are not good places to work with session

What is a suggestion to wait elements on a page?

Thanks

[tikolakin]

One of ideas is using

  public function spin($lambda, $wait = 10) {
    for ($i = 0; $i < $wait; $i++) {
      try {
        if ($lambda($this)) {
          return TRUE;
        }
      }
      catch (Exception $e) {
        // Do nothing.
      }
      sleep(1);
    }
    throw new Exception("Element not found after $wait sec.");
  }

And check with this whether element has been found

public function openLoginForm() {
    $login_link = $this->findLink('Login');
    if ($login_link) {
        $login_link->click();
    }

    if ($this->spin(function() {
        return (bool) $this->getElement('Login Popup');
    })
    ) {
        return $this->getElement('Login Popup');
    }
}

But also the question how to manage waits on different pages
Thanks

[jakzal]

Interacting with mink should be done in page objects. That's what they're for. Instead of the session, which might not be available in future mink versions (getSession() is deprecated), use the getDriver() method:

public function openLoginForm()
{
    // ...

    $this->getDriver()->wait(30000, '(typeof(jQuery)=="undefined" || (0 === jQuery.active && 0 === jQuery(\':animated\').length))');

    // ...
}

Obviously, there's no good wait to deal with waits and it's best to avoid them.

[tikolakin]

Hi @jakzal , thanks for the advice