FormStep.php in Simple multi step form 8

Namespace

Drupal\simple_multistep\Plugin\field_group\FieldGroupFormatter

File

src/Plugin/field_group/FieldGroupFormatter/FormStep.php

<?php

namespace Drupal\simple_multistep\Plugin\field_group\FieldGroupFormatter;

use Drupal\field_group\FieldGroupFormatterBase;
use Drupal\Component\Utility\Html;

/**
 * Plugin implementation of the 'form_step' formatter.
 *
 * @FieldGroupFormatter(
 *   id = "form_step",
 *   label = @Translation("Form step"),
 *   description = @Translation("Provide simple form step"),
 *   supported_contexts = {
 *     "form",
 *   }
 * )
 */
class FormStep extends FieldGroupFormatterBase {

  /**
   * {@inheritdoc}
   */
  public function process(&$element, $processed_object) {
    $element += [
      '#type' => 'container',
      '#attributes' => [],
    ];
    if ($this
      ->getSetting('id')) {
      $element['#id'] = Html::getUniqueId($this
        ->getSetting('id'));
    }
    $classes = $this
      ->getClasses();
    if (!empty($classes)) {
      $element['#attributes'] += [
        'class' => $classes,
      ];
    }
    if ($this
      ->getSetting('required_fields')) {
      $element['#attached']['library'][] = 'field_group/formatter.fieldset';
      $element['#attached']['library'][] = 'field_group/core';
    }
  }

  /**
   * {@inheritdoc}
   */
  public function preRender(&$element, $rendering_object) {
    parent::preRender($element, $rendering_object);
    $this
      ->process($element, $rendering_object);
  }

  /**
   * {@inheritdoc}
   */
  public function settingsForm() {
    $form = parent::settingsForm();
    $form['label']['#title'] = $this
      ->t('Step title');
    $form['show_step_title'] = [
      '#title' => $this
        ->t('Show step title'),
      '#type' => 'checkbox',
      '#default_value' => $this
        ->getSetting('show_step_title'),
      '#description' => $this
        ->t('Show step title'),
      '#weight' => 1,
    ];
    $form['back_button_show'] = [
      '#title' => $this
        ->t('Show back button'),
      '#type' => 'checkbox',
      '#default_value' => $this
        ->getSetting('back_button_show'),
      '#description' => $this
        ->t('Back button for form. Don`t show on first step'),
      '#weight' => 2,
    ];
    $form['back_button_text'] = [
      '#title' => $this
        ->t('Text for back button'),
      '#type' => 'textfield',
      '#default_value' => $this
        ->getSetting('back_button_text'),
      '#description' => $this
        ->t('Text which will be show on back button'),
      '#weight' => $form['back_button_show']['#weight'] + 0.1,
    ];
    $form['next_button_text'] = [
      '#title' => $this
        ->t('Text for next button'),
      '#type' => 'textfield',
      '#default_value' => $this
        ->getSetting('next_button_text'),
      '#description' => $this
        ->t('Text which will be show on next button'),
    ];
    return $form;
  }

  /**
   * {@inheritdoc}
   */
  public function settingsSummary() {
    $summary = parent::settingsSummary();
    $summary[] = $this
      ->t('Back button: @element', [
      '@element' => $this
        ->getSetting('back_button_show') ? 'Show' : 'Hide',
    ]);
    $summary[] = $this
      ->t('Show title: @element', [
      '@element' => $this
        ->getSetting('show_step_title') ? 'Show' : 'Hide',
    ]);
    return $summary;
  }

  /**
   * {@inheritdoc}
   */
  public static function defaultContextSettings($context) {
    $defaults = [
      'back_button_show' => FALSE,
      'back_button_text' => t('Back'),
      'next_button_text' => t('Next'),
      'show_step_title' => TRUE,
    ] + parent::defaultSettings($context);
    if ($context == 'form') {
      $defaults['required_fields'] = 1;
    }
    return $defaults;
  }

}

Classes

Name	Description
FormStep	Plugin implementation of the 'form_step' formatter.