asu_events.module

<?php

use Drupal\Core\Url;

/**
 * Implements hook_preprocess_HOOK().
 */
function asu_events_preprocess_block(&$variables) {
  $plugin_id = $variables['base_plugin_id'] ?? '';

  if ($plugin_id != 'inline_block') {
    return;
  }

  if ($variables['derivative_plugin_id'] == 'events') {
    $variables = _preprocess_events($variables);
  }
}

/**
 * All of the preprocess logic.
 *
 * @param array $variables
 *  Array of variables.
 *
 * @return array
 *
 */
function _preprocess_events($variables) {
  $rand_id = random_int(0, PHP_INT_MAX);
  $events_block = new \stdClass();
  $variables['events_id'] = 'events-wrapper-' . $rand_id;
  $block = $variables['content']['#block_content'];
  $events_block->header = new \stdClass();
  $events_block->dataSource = new \stdClass();
  $events_block->ctaButton = new \stdClass();

  if ($block->field_events_heading->value) {
    $events_block->header->text = $block->field_events_heading->value;
  }
  if ($block->field_events_header_text_color->value) {
    $events_block->header->color = $block->field_events_header_text_color->value;
  }
  if ($block->field_events_cta && $block->field_events_cta->title && $block->field_events_cta->uri) {
    $events_block->ctaButton->text = $block->field_events_cta->title;
    $link = Url::fromUri($block->field_events_cta->uri);
    $events_block->ctaButton->url = $link->toString();
  }
  if ($block->field_events_cta_color->value) {
    $events_block->ctaButton->color = $block->field_events_cta_color->value;
  }
  if ($block->field_events_items_to_display->value) {
    $events_block->display = $block->field_events_items_to_display->value;
  }
  $events_block->dataSource->url = '/asu-events-feed/';
  if ($block->field_feed_taxonomy_term->value) {
    // Allow only alphanumeric characters and underscore.
    $events_block->dataSource->url .= preg_replace('/[^A-Za-z0-9\_]/', '', $block->field_feed_taxonomy_term->value);
  }
  if ($block->field_events_feed_filter->value) {
    $events_block->dataSource->filters = $block->field_events_feed_filter->value;
  }

  $settings = [];
  $settings['components']['asu_events'][$rand_id] = $events_block;

  $variables['content']['#attached']['drupalSettings']['asu'] = $settings;
  $variables['content']['#attached']['library'][] = 'asu_events/events-component';
  return $variables;
}

/**
 * Adds block bundle/type to entity embed theme suggestions.
 *
 * {@inheritdoc}
 */
function asu_events_theme_suggestions_alter(array &$suggestions, array $variables, $hook) {
  if (!empty($variables['element']['#entity'])) {
    $block_type = $variables['element']['#entity']->bundle();
    $suggestions[] = 'entity_embed_container__embed_button' . '__' . $block_type;
  }
}

/**
 * Implements hook_theme().
 *
 * {@inheritdoc}
 */
function asu_events_theme($existing, $type, $theme, $path) {
  $templates = $path . '/templates';
  return [
    'entity_embed_container__embed_button__events' => [
    'base hook' => 'entity_embed_container',
    'render element' => 'element'
    ]
  ];
}

/**
 * Implements hook_preprocess_HOOK().
 *
 * {@inheritdoc}
 */
function asu_events_preprocess_entity_embed_container(&$variables) {
  $element = $variables['element'];
  $block = $element['#entity'];
  $block_type = $block->bundle();
  if ($block_type == "events") {
    $variables['base_plugin_id'] = 'inline_block';
    $variables['derivative_plugin_id'] = 'events';
    $variables['content']['#block_content'] = $block;
    $variables = _preprocess_events($variables);
  }
}