TranslationStatusForm::submitForm

public TranslationStatusForm::submitForm(array &$form, FormStateInterface $form_state)

public function submitForm(array &$form, FormStateInterface $form_state) {
  $this->moduleHandler->loadInclude('locale', 'fetch.inc');
  $this->moduleHandler->loadInclude('locale', 'bulk.inc');

  $langcodes = array_filter($form_state->getValue('langcodes'));
  $projects = array_filter($form_state->getValue('projects_update'));

  // Set the translation import options. This determines if existing
  // translations will be overwritten by imported strings.
  $options = _locale_translation_default_update_options();

  // If the status was updated recently we can immediately start fetching the
  // translation updates. If the status is expired we clear it an run a batch to
  // update the status and then fetch the translation updates.
  $last_checked = $this->state->get('locale.translation_last_checked');
  if ($last_checked < REQUEST_TIME - LOCALE_TRANSLATION_STATUS_TTL) {
    locale_translation_clear_status();
    $batch = locale_translation_batch_update_build(array(), $langcodes, $options);
    batch_set($batch);
  }
  else {
    // Set a batch to download and import translations.
    $batch = locale_translation_batch_fetch_build($projects, $langcodes, $options);
    batch_set($batch);
    // Set a batch to update configuration as well.
    if ($batch = locale_config_batch_update_components($options, $langcodes)) {
      batch_set($batch);
    }
  }
}