webshare.module

<?php

/**
 * @file
 * A module that adds social buttons to your website.
 */

use Drupal\Core\Entity\Display\EntityViewDisplayInterface;
use Drupal\Core\Entity\EntityInterface;
use Drupal\Core\Form\FormStateInterface;
use Drupal\Core\Routing\RouteMatchInterface;

/**
 * Implements hook_theme().
 */
function webshare_theme($existing, $type, $theme, $path) {
  $template_vars = [
    'url' => NULL,
    'content' => NULL,
  ];
  $variables = [
    'webshare' => [
      'variables' => [
        'attributes' => [
          'class' => NULL,
        ],
        'title' => NULL,
        'share_icon' => NULL,
        'webshare_links_id' => NULL,
        'is_active' => NULL,
        'buttons' => NULL,
      ],
      'template' => 'webshare',
    ],
    'webshare_facebook_share' => [
      'variables' => $template_vars,
      'template' => 'webshare-facebook-share',
    ],
    'webshare_x' => [
      'variables' => $template_vars,
      'template' => 'webshare-x',
    ],
    'webshare_linkedin' => [
      'variables' => $template_vars,
      'template' => 'webshare-linkedin',
    ],
    'webshare_whatsapp' => [
      'variables' => $template_vars,
      'template' => 'webshare-whatsapp',
    ],
    'webshare_copy' => [
      'variables' => $template_vars,
      'template' => 'webshare-copy-url',
    ],
  ];
  return $variables;
}

/**
 * Implements hook_entity_extra_field_info().
 */
function webshare_entity_extra_field_info() {
  $config = \Drupal::config('webshare.settings');
  $extra = [];

  if ($config->get('location') == 'content') {
    $entity_info = \Drupal::service('entity_type.bundle.info')->getAllBundleInfo();

    if (isset($entity_info['node'])) {
      foreach ($entity_info['node'] as $bundle => $bundle_info) {
        $extra['node'][$bundle]['display'] = [
          'webshare' => [
            'label' => t('Webshare'),
            'description' => t('Webshare buttons'),
            'weight' => $config->get('weight'),
          ],
        ];
      }
    }
    if (isset($entity_info['commerce_product'])) {
      foreach ($entity_info['commerce_product'] as $bundle => $bundle_info) {
        $extra['commerce_product'][$bundle]['display'] = [
          'webshare' => [
            'label' => t('Webshare'),
            'description' => t('Webshare buttons'),
            'weight' => $config->get('weight'),
          ],
        ];
      }
    }
  }
  return $extra;
}

/**
 * Implements hook_ENTITY_TYPE_view().
 */
function webshare_node_view(array &$build, EntityInterface $node, EntityViewDisplayInterface $display, $view_mode) {
  $config = \Drupal::config('webshare.settings');
  $share_service = \Drupal::service('webshare.service');
  $route_params = \Drupal::routeMatch()->getParameters();

  if (($route_params->has('node_preview') && $route_params->get('node_preview')->in_preview) || $share_service->isRestricted($view_mode)) {
    return;
  }

  $url = $node->toUrl()->setAbsolute()->toString();
  $id = $node->getEntityTypeId() . $node->id();
  $enabled_types = $config->get('content_types');
  $enabled_view_modes = $config->get('view_modes.' . $node->bundle());
  $per_entity = $config->get('per_entity');
  $enabled_nodes = $config->get('enabled_entities.' . $node->getEntityTypeId()) ?? [];
  switch ($config->get('location')) {
    case 'content':
      if (isset($enabled_types[$node->bundle()]) && $enabled_types[$node->bundle()] === $node->bundle() && $display->getComponent('webshare')) {
        if (isset($enabled_view_modes[$view_mode]) && $enabled_view_modes[$view_mode]) {
          if (!$per_entity || in_array($node->id(), $enabled_nodes)) {
            $build['webshare'] = $share_service->build($url, $id);
          }
        }
      }
      break;

    case 'links':
      if (isset($enabled_types[$node->bundle()]) && $enabled_types[$node->bundle()] === $node->bundle() && $display->getComponent('links')) {
        if (isset($enabled_view_modes[$view_mode]) && $enabled_view_modes[$view_mode]) {
          if (!$per_entity || in_array($node->id(), $enabled_nodes)) {
            $content = $share_service->build($url, $id);
            $links['webshare'] = [
              'title' => $content,
            ];
            $build['links'] = [
              '#theme' => 'links',
              '#links' => $links,
              '#tag' => 'div',
              '#type' => 'html_tag',
            ];
          }
        }
      }
      break;
  }
}

/**
 * Implements hook_form_BAwebshare_FORM_ID_alter().
 */
function webshare_form_node_form_alter(&$form, FormStateInterface $form_state, $form_id) {
  webshare_inject_into_entity_forms($form, $form_state);
}

/**
 * Implements hook_form_BAwebshare_FORM_ID_alter().
 */
function webshare_form_commerce_product_form_alter(&$form, FormStateInterface $form_state, $form_id) {
  webshare_inject_into_entity_forms($form, $form_state);
}

/**
 * Injects Webshare settings into node or product forms.
 */
function webshare_inject_into_entity_forms(&$form, FormStateInterface $form_state) {
  $config = \Drupal::config('webshare.settings');
  $entity = $form_state->getFormObject()->getEntity();

  if ($entity->getEntityTypeId() == 'commerce_product') {
    $enabled_types = $config->get('product_types');
  }
  else {
    $enabled_types = $config->get('content_types');
  }

  if ($config->get('per_entity') && in_array($entity->bundle(), $enabled_types)) {
    $enabled_products = $config->get('enabled_entities.' . $entity->getEntityTypeId()) ?? [];
    $entity_is_enabled = in_array($entity->id(), $enabled_products);

    $form['webshare'] = [
      '#type' => 'details',
      '#title' => t('Webshare Settings'),
      '#group' => 'advanced',
      '#weight' => 100,
      '#tree' => TRUE,
      '#open' => $entity_is_enabled,
    ];
    $form['webshare']['enabled'] = [
      '#type' => 'checkbox',
      '#title' => t('Show social share buttons'),
      '#default_value' => $entity_is_enabled,
    ];

    $form['actions']['submit']['#submit'][] = 'webshare_entity_form_submit';
  }
}

/**
 * Custom form submit to save Webshare settings on entities.
 */
function webshare_entity_form_submit(&$form, FormStateInterface $form_state) {
  $config = \Drupal::configFactory()->getEditable('webshare.settings');
  $entity = $form_state->getFormObject()->getEntity();
  $config_key = 'enabled_entities.' . $entity->getEntityTypeId();
  $enabled_entities = $config->get($config_key) ?? [];
  $webshare_enabled = $form_state->getValue(['webshare', 'enabled'], 0);
  $key = array_search($entity->id(), $enabled_entities);

  if ($key !== FALSE && !$webshare_enabled) {
    unset($enabled_entities[$key]);
    $config->set($config_key, array_values($enabled_entities))->save();
  }
  elseif ($key === FALSE && $webshare_enabled) {
    $enabled_entities[] = $entity->id();
    $config->set($config_key, $enabled_entities)->save();
  }
}