EmailContactLinkFormatter.php in Email Contact 8

Namespace

Drupal\email_contact\Plugin\Field\FieldFormatter

File

src/Plugin/Field/FieldFormatter/EmailContactLinkFormatter.php

<?php

namespace Drupal\email_contact\Plugin\Field\FieldFormatter;

use Drupal\Core\Field\FormatterBase;
use Drupal\Core\Form\FormStateInterface;
use Drupal\Core\Field\FieldItemListInterface;
use Drupal\Core\Link;
use Drupal\Core\Url;

/**
 * Plugin implementation of the 'email_contact_link' formatter.
 *
 * @FieldFormatter(
 *   id = "email_contact_link",
 *   label = @Translation("Email contact link"),
 *   field_types = {
 *     "email",
 *   },
 *   settings = {
 *     "link_text" = "Contact person by email"
 *   }
 * )
 */
class EmailContactLinkFormatter extends FormatterBase {

  /**
   * {@inheritdoc}
   */
  public function settingsForm(array $form, FormStateInterface $form_state) {
    $element = array();
    $element['redirection_to'] = array(
      '#type' => 'hidden',
      '#value' => 'custom',
    );
    $element['custom_path'] = array(
      '#type' => 'hidden',
      '#value' => '',
    );
    $element['include_values'] = array(
      '#title' => t('Display all field values in email body'),
      '#type' => 'checkbox',
      '#default_value' => $this
        ->getSetting('include_values'),
    );
    $element['default_message'] = array(
      '#title' => t('Additional message in email body'),
      '#type' => 'textfield',
      '#default_value' => $this
        ->getSetting('default_message'),
    );
    $element['link_text'] = array(
      '#title' => t('Link text'),
      '#type' => 'textfield',
      '#default_value' => $this
        ->getSettings()['link_text'],
    );
    if (\Drupal::moduleHandler()
      ->moduleExists('token')) {
      $element['token_help'] = array(
        '#theme' => 'token_tree_link',
        '#token_types' => array(
          'node',
        ),
      );
    }
    return $element;
  }

  /**
   * {@inheritdoc}
   */
  public static function defaultSettings() {
    return array(
      'link_text' => t('Contact person by email'),
      'redirection_to' => 'custom',
      'custom_path' => '',
      'include_values' => 1,
      'default_message' => '',
    ) + parent::defaultSettings();
  }

  /**
   * {@inheritdoc}
   */
  public function settingsSummary() {
    $summary = array();
    $summary[] = t('Displays a link to a contact form.');
    return $summary;
  }

  /**
   * {@inheritdoc}
   */
  public function viewElements(FieldItemListInterface $items, $langcode) {
    $elements = array();
    foreach ($items as $delta => $item) {

      /** @var \Drupal\Core\Entity\EntityInterface $entity */
      $entity = $item
        ->getEntity();
      $elements[$delta]['#markup'] = Link::fromTextAndUrl($this
        ->getSetting('link_text'), new Url('email_contact.form', [
        'entity_type' => $entity
          ->getEntityTypeId(),
        'entity_id' => $entity
          ->id(),
        'field_name' => $items
          ->getName(),
        'view_mode' => $this->viewMode,
      ]))
        ->toString();
      break;
    }
    return $elements;
  }

}

Classes

Name	Description
EmailContactLinkFormatter	Plugin implementation of the 'email_contact_link' formatter.