configuration['addresses'] as $item) { $value = $item['value']; $display = $item['display']; if ($value === '') { $addresses[] = $value; } elseif ((strpos($value, '@') === FALSE) && ($user = User::load($value))) { $addresses[] = $user; } else { $addresses[] = new Address($value, $display); } } $email->setAddress(static::NAME, $addresses); } /** * {@inheritdoc} */ public function settingsForm(array $form, FormStateInterface $form_state) { // Set an id to allow updating the addresses when the type is changed. $id = $this->getPluginId(); $wrapper = "mailer-policy-edit-$id"; $form['addresses'] = [ '#type' => 'container', '#attributes' => ['id' => $wrapper], '#element_validate' => [[static::class, 'addressesValidate']], ]; // Synchronise with any existing form state. $addresses = $form_state->getValue(['config', $id, 'addresses']) ?? $this->configuration['addresses'] ?? [[]]; foreach ($addresses as $item) { $form_item['value'] = [ '#type' => 'textfield', '#title' => $this->t('Address'), '#default_value' => $item['value'] ?? NULL, '#description' => $this->t('Enter an email address, a user ID, or %site to use the site email address.', ['%site' => '']), ]; $form_item['display'] = [ '#type' => 'textfield', '#title' => $this->t('Display name'), '#default_value' => $item['display'] ?? NULL, '#description' => $this->t('Human-readable display name (ignored for user or site address).'), ]; $form['addresses'][] = $form_item; } // Add address button. $form['add'] = [ '#type' => 'submit', '#value' => $this->t('Add address'), '#submit' => [[static::class, 'submitAdd']], '#ajax' => [ 'callback' => [static::class, 'ajaxUpdate'], 'wrapper' => $wrapper, ], ]; return $form; } /** * {@inheritdoc} */ public function getSummary() { $summary = []; foreach ($this->configuration['addresses'] as $item) { $value = $item['value']; if ($value === '') { $summary[] = $this->t('Site email address'); } elseif ((strpos($value, '@') === FALSE) && ($user = User::load($value))) { $summary[] = $user->getDisplayName(); } else { $summary[] = $value; } } return implode(', ', $summary); } /** * Ajax callback to update the form. */ public static function ajaxUpdate($form, FormStateInterface $form_state) { $button = $form_state->getTriggeringElement(); $id = $button['#parents'][1]; return $form['config'][$id]['addresses']; } /** * Submit callback for add button. */ public static function submitAdd(array &$form, FormStateInterface $form_state) { $button = $form_state->getTriggeringElement(); $id = $button['#parents'][1]; $addresses = $form_state->getValue(['config', $id, 'addresses']); $addresses[] = []; $form_state->setValue(['config', $id, 'addresses'], $addresses) ->setRebuild(); } /** * Validate callback for the addresses. */ public static function addressesValidate($element, FormStateInterface $form_state, $form) { $id = $element['#parents'][1]; $addresses = $form_state->getValue(['config', $id, 'addresses']) ?? []; // Remove any empty addresses. $addresses = array_filter($addresses, function ($a) { return !empty($a['value']); }); // Raise an error for no addresses if the policy is being saved. Skip this // for the non-primary 'Add address' button. if (empty($addresses) && ($form_state->getTriggeringElement()['#button_type'] == 'primary')) { $label = \Drupal::service('plugin.manager.email_adjuster')->getDefinition($id)['label']; $form_state->setError($element, t('You must set at least one %label address.', ['%label' => $label])); } else { $form_state->setValueForElement($element, $addresses); } } }