TitleStyleTextFieldFormatter.php in Title Field for Manage Display 8.2

Namespace

Drupal\title_field_for_manage_display\Plugin\Field\FieldFormatter

File

src/Plugin/Field/FieldFormatter/TitleStyleTextFieldFormatter.php

<?php

namespace Drupal\title_field_for_manage_display\Plugin\Field\FieldFormatter;

use Drupal\Component\Utility\Html;
use Drupal\Core\Field\FieldItemInterface;
use Drupal\Core\Field\FieldItemListInterface;
use Drupal\Core\Field\FormatterBase;
use Drupal\Core\Form\FormStateInterface;
use Drupal\Core\Field\Plugin\Field\FieldFormatter\BasicStringFormatter;
use Drupal\Core\Link;
use Drupal\Core\Template\Attribute;

/**
 * Plugin implementation of the 'title_style_text_field_formatter' formatter.
 *
 * @FieldFormatter(
 *   id = "title_value_field_formatter",
 *   label = @Translation("Title"),
 *   field_types = {
 *     "string"
 *   }
 * )
 */
class TitleStyleTextFieldFormatter extends BasicStringFormatter {

  /**
   * {@inheritdoc}
   */
  public function viewElements(FieldItemListInterface $items, $langcode = NULL) {
    $attributes = new Attribute();
    $classes = $this
      ->getSetting('classes');
    if (!empty($classes)) {
      $attributes
        ->addClass($classes);
    }
    $parent = $items
      ->getParent()
      ->getValue();
    $text = $parent
      ->label();
    if ($this
      ->getSetting('linked')) {
      $text = Link::fromTextAndUrl($text, $parent
        ->toUrl())
        ->toString();
    }
    $output[] = [
      '#type' => 'html_tag',
      '#tag' => $this
        ->getSetting('tag'),
      '#attributes' => $attributes
        ->toArray(),
      '#value' => $text,
    ];
    return $output;
  }

  /**
   * {@inheritdoc}
   */
  public function settingsForm(array $form, FormStateInterface $form_state) {
    $form = parent::settingsForm($form, $form_state);
    $heading_options = [
      'span' => 'span',
      'div' => 'div',
    ];
    foreach (range(1, 5) as $level) {
      $heading_options['h' . $level] = 'H' . $level;
    }
    $form['tag'] = [
      '#title' => $this
        ->t('Tag'),
      '#type' => 'select',
      '#description' => $this
        ->t('Select the tag which will be wrapped around the title.'),
      '#options' => $heading_options,
      '#default_value' => $this
        ->getSetting('tag'),
    ];
    $form['linked'] = [
      '#title' => $this
        ->t('Link to the Content'),
      '#type' => 'checkbox',
      '#description' => $this
        ->t('Wrap the title with a link to the content.'),
      '#default_value' => $this
        ->getSetting('linked'),
    ];
    $form['classes'] = [
      '#title' => $this
        ->t('Classes'),
      '#type' => 'textfield',
      '#default_value' => $this
        ->getSetting('classes'),
    ];
    return $form;
  }

  /**
   * {@inheritdoc}
   */
  public static function defaultSettings() {
    return [
      'tag' => 'h2',
      'linked' => '1',
      'classes' => '',
    ];
  }

  /**
   * {@inheritdoc}
   */
  public function settingsSummary() {
    $settings = $this
      ->getSettings();
    $replacements = [
      '@tag' => $settings['tag'],
    ];
    if ($settings['linked']) {
      $summary[] = $this
        ->t('Display as @tag, linked to content', $replacements);
    }
    else {
      $summary[] = $this
        ->t('Display as @tag', $replacements);
    }
    if (!empty($settings['classes'])) {
      $summary[] = $this
        ->t('Classes: @classes', [
        '@classes' => $settings['classes'],
      ]);
    }
    return $summary;
  }

}

Classes

Name	Description
TitleStyleTextFieldFormatter	Plugin implementation of the 'title_style_text_field_formatter' formatter.