belgrade.theme

<?php

/**
 * @file
 * Belgrade theme for Drupal Commerce.
 */

use Drupal\Core\Form\FormStateInterface;
use Drupal\Core\Url;
use Drupal\Core\Link;

/**
 * Implements hook_theme_suggestions_HOOK_alter().
 */
function belgrade_theme_suggestions_field_alter(&$suggestions, $variables) {
  $element = $variables['element'];
  // Field template suggestions based on view mode.
  $suggestions[] = 'field__' . $element['#entity_type'] . '__' . $element['#field_name'] . '__' . $element['#view_mode'];
}

/**
 * Implements hook_theme_suggestions_HOOK_alter().
 */
function belgrade_theme_suggestions_form_alter(&$suggestions, $variables) {
  $form_id = $variables['element']['#form_id'];
  if (in_array($form_id, ['user_login_form','user_register_form','user_pass']))  {
    $suggestions[] = 'form__' . $form_id;
  }
}

/**
 * Implements hook_preprocess_HOOK() for form element templates.
 */
function belgrade_preprocess_form_element(&$variables) {
  $element = &$variables['element'];
  // This function is invoked as theme wrapper, but the rendered form element may
  // not necessarily have been processed by \Drupal::formBuilder()->doBuildForm().
  $element += [
    '#title_display' => 'before',
    '#wrapper_attributes' => [],
    '#label_attributes' => [],
  ];
  $variables['attributes'] = $element['#wrapper_attributes'];

  // Add label_display and label variables to template.
  $variables['label_display'] = $element['#title_display'];
  $variables['label'] = ['#theme' => 'form_element_label'];
  $variables['label'] += array_intersect_key($element, array_flip(['#id', '#required', '#title', '#title_display']));
  $variables['label']['#attributes'] = $element['#label_attributes'];

  $variables['children'] = $element['#children'];
}

/**
 * Implements hook_form_FORM_ID_alter().
 */
function belgrade_form_user_login_form_alter(&$form, FormStateInterface $form_state, $form_id) {
  // Display the "Forgot your password?" link under the password input.
  $pass_link = Link::fromTextAndUrl(t('Forgot your password?'), Url::fromUri('route:user.pass', ['attributes' => ['class' => ['pass-link']]]))->toString();
  $form['pass']['#suffix'] = $pass_link;
}