FontFieldIconDefaultWidget.php in Font Field Icon 8

Namespace

Drupal\font_field_icon\Plugin\Field\FieldWidget

File

src/Plugin/Field/FieldWidget/FontFieldIconDefaultWidget.php

<?php

namespace Drupal\font_field_icon\Plugin\Field\FieldWidget;

use Drupal\Core\Field\FieldItemListInterface;
use Drupal\Core\Field\WidgetBase;
use Drupal\Core\Form\FormStateInterface;

/**
 * Plugin implementation of the 'FontFieldIconDefaultWidget' widget.
 *
 * @FieldWidget(
 *   id = "FontFieldIconDefaultWidget",
 *   label = @Translation("Field with icon"),
 *   field_types = {
 *     "font_field_icon"
 *   }
 * )
 */
class FontFieldIconDefaultWidget extends WidgetBase {

  /**
   * {@inheritdoc}
   */
  public function formElement(FieldItemListInterface $items, $delta, array $element, array &$form, FormStateInterface $formState) {
    $element['font_field_icon'] = [
      '#type' => 'select',
      '#title' => $this
        ->t('Select icon'),
      '#options' => $this
        ->getIconsFromFile(),
      '#default_value' => isset($items[$delta]->font_field_icon) ? $items[$delta]->font_field_icon : NULL,
      '#empty_value' => '',
    ];
    $element['font_field_icon_link'] = [
      '#type' => 'textfield',
      '#title' => $this
        ->t('Text for icon'),
      '#default_value' => isset($items[$delta]->font_field_icon_link) ? $items[$delta]->font_field_icon_link : NULL,
      '#empty_value' => '',
      '#placeholder' => $this
        ->t('Text for icon'),
      '#description' => $this
        ->t('Provide the link e.g. https://twitter.com'),
    ];
    return $element;
  }

  /**
   * Get CSS content from the file and return to the Icons select.
   *
   * @return array
   *   Return icon.
   */
  public function getIconsFromFile() {
    $filepath = DRUPAL_ROOT . '/libraries/fontawesome/css/font-awesome.css';
    $content = file_exists($filepath) ? file_get_contents($filepath) : '';
    if ($content) {
      if (preg_match_all('@\\.fa-(.*?):before@m', $content, $matches)) {
        $icons = $matches[1];
        asort($icons);
        return array_combine($icons, $icons);
      }
      else {
        return [
          'None' => 'Read readme file!',
        ];
      }
    }
    else {
      return [
        'None' => 'Read readme file!',
      ];
    }
  }

}

Classes

Name	Description
FontFieldIconDefaultWidget	Plugin implementation of the 'FontFieldIconDefaultWidget' widget.