social_auth_buttons-1.0.0-beta1/social_auth_buttons.module

<?php

use Drupal\Component\Utility\NestedArray;

function _social_auth_form(&$form, \Drupal\Core\Form\FormStateInterface $form_state) {
  $form['social_auth_buttons'] = [
    '#type' => 'social_auth_buttons',
    '#title' => t('Social Auth Buttons'),
  ];
}

/**
 * Implements hook_form_FORM_ID_alter().
 */
function social_auth_buttons_form_user_login_form_alter(&$form, \Drupal\Core\Form\FormStateInterface $form_state, $form_id) {
  /* Your code here */
  _social_auth_form($form['actions'], $form_state);
}


/**
 * Implements hook_form_FORM_ID_alter().
 */
function social_auth_buttons_form_commerce_checkout_flow_multistep_default_alter(&$form, \Drupal\Core\Form\FormStateInterface $form_state, $form_id) {
  /* Your code here */
  if (isset($form['login']['returning_customer'])) {
    _social_auth_form($form['login']['returning_customer'], $form_state);
  }
}

/**
 * Implements hook_theme().
 */
function social_auth_buttons_theme($existing, $type, $theme, $path) {
  return [
    'social_auth_buttons' => [
      'render element' => 'element',
    ],
    'social_auth_buttons_link' => [
      'render element' => 'element',
    ],
  ];
}

/**
 * Prepares variables for file form widget templates.
 *
 * Default template: social-auth-buttons.html.twig.
 *
 * @param array $variables
 *   An associative array containing:
 *   - element: A render element representing the social auth buttons.
 */
function template_preprocess_social_auth_buttons(&$variables) {
  $element = $variables['element'];

  $variables['attributes'] = [];
  if (isset($element['#id'])) {
    $variables['attributes']['id'] = $element['#id'];
  }
  if (!empty($element['#attributes']['class'])) {
    $variables['attributes']['class'] = (array) $element['#attributes']['class'];
  }
}

/**
 * Prepares variables for file form widget templates.
 *
 * Default template: social-auth-buttons-link.html.twig.
 *
 * @param array $variables
 *   An associative array containing:
 *   - link: Link object.
 */
function template_preprocess_social_auth_buttons_link(&$variables) {
  $element = $variables['element'];

  $variables['attributes'] = [];
  if (isset($element['#id'])) {
    $variables['attributes']['id'] = $element['#id'];
  }
  if (!empty($element['#attributes']['class'])) {
    $variables['attributes']['class'] = (array) $element['#attributes']['class'];
  }

  if (isset($element['#link'])) {
    $variables['link'] = $element['#link'];
    $url = $variables['link']->getUrl();
    $variables['attributes'] = NestedArray::mergeDeep($variables['attributes'], $url->getOptions());
    $variables['network'] = $element['#network'];
    $variables['name'] = str_replace('social_auth_', '', $element['#name']);
  }
}