layoutcomponents-8.x-1.14-beta2/modules/lc_simple_iframe/lc_simple_iframe.module

<?php

/**
 * @file
 * LC Simple Iframe module file.
 */

use Drupal\Core\Routing\RouteMatchInterface;
use Drupal\Core\Form\FormStateInterface;
use Drupal\Core\Template\Attribute;

/**
 * Implements hook_theme().
 */
function lc_simple_iframe_theme($existing, $type, $theme, $path) {
  return [
    'layoutcomponents_block_content__simple_iframe' => [
      'base hook' => 'block',
      'variables' => ['iframe' => NULL],
    ],
  ];
}

/**
 * Implements hook_page_attachments().
 */
function lc_simple_iframe_page_attachments(&$page) {
  $page['#attached']['library'][] = 'lc_simple_iframe/lc_simple_iframe';
}

/**
 * Implements hook_help().
 */
function lc_simple_iframe_help($route_name, RouteMatchInterface $route_match) {
  switch ($route_name) {
    // Create help page.
    case 'help.page.lc_simple_iframe':
      $module_handler = \Drupal::service('module_handler');
      $module_path = $module_handler->getModule('lc_simple_iframe')->getPath();
      $file = $module_path . '/README.md';
      if (!file_exists($file)) {
        return '';
      }

      // Get content from file.
      $reader = file_get_contents($file);

      // Return "clean" content.
      return preg_replace("/\r\n|\n|\r/", "<br>", $reader);
  }
}

/**
 * Implements hook_preprocess().
 */
function lc_simple_iframe_preprocess_block(&$variables) {
  if ($variables['base_plugin_id'] != 'inline_block') {
    return;
  }

  if ($variables['derivative_plugin_id'] != 'simple_iframe') {
    return;
  }

  /** @var \Drupal\block_content\Entity\BlockContent $block */
  $block = $variables['content']['#block_content'];
  $block_id = str_replace(' ', '_', $block->uuid());

  // Values.
  $url = $block->get('field_sif_url')->getString();
  $height = $block->get('field_sif_height')->getString();
  $extra_class = $block->get('field_sif_extra_class')->getString();
  $extra_attributes = $block->get('field_sif_extra_attributes')->getString();

  // Container styles.
  $container = new Attribute();
  $container->addClass([
    "lc-inline_block_$block_id-iframe-container-edit",
    "pl-0",
    "pr-0",
    "d-flex",
  ]);

  // Element styles.
  $element = new Attribute();
  $element->addClass('lc-inline_block_' . $block_id . '-iframe-edit');

  // Defaults.
  $styles = ['width: 100%'];
  $classes = [
    'simple-iframe',
    'lc-inline_block_' . $block_id . '-iframe-edit',
  ];

  // Set url.
  if (!empty($url)) {
    $element->setAttribute('src', $url);
  }

  // Set title.
  if (!empty($height)) {
    $styles[] = "height: " . $height . "px";
  }

  // Set classes.
  if (!empty($extra_class)) {
    $extra_class = explode(" ", $extra_class);
    $classes = array_merge($classes, $extra_class);
    $element->addClass($classes);
  }

  // Set attributes.
  if (!empty($extra_attributes)) {
    $parts = explode(" ", $extra_attributes);
    foreach ($parts as $attribute) {
      if (strpos($attribute, '|') !== FALSE) {
        list($key, $value) = explode('|', $attribute);
        $element->setAttribute($key, $value);
      }
    }
  }

  // Generate the element styles.
  $element->setAttribute('style', implode(';', $styles));

  // Store the styles.
  $variables['content']['iframe'] = [
    'container' => $container,
    'element' => $element,
  ];

}

/**
 * Implements hook_inline_entity_form_entity_form_alter().
 */
function lc_simple_iframe_inline_entity_form_entity_form_alter(&$entity_form, &$form_state) {
  if ($entity_form['#bundle'] == 'simple_iframe') {
    if (!array_key_exists('#default_value', $entity_form) || !isset($entity_form['#default_value'])) {
      return;
    }
    /** @var \Drupal\block_content\Entity\BlockContent $block */
    $block = $entity_form['#default_value'];
    $block_id = str_replace(" ", "_", $block->uuid());
    _lc_simple_iframe_form_alter($entity_form, $block_id);
  }
}

/**
 * Implements hook_block_type_form_alter().
 */
function lc_simple_iframe_block_type_form_alter(array &$form, FormStateInterface &$form_state, $block_type) {
  if ($block_type == "simple_iframe") {
    if (!array_key_exists('#block', $form)) {
      return;
    }

    /** @var \Drupal\block_content\Entity\BlockContent $block */
    $block = $form['#block'];
    $block_id = str_replace(" ", "_", $block->uuid());
    _lc_simple_iframe_form_alter($form, $block_id);
  }
}

/**
 * Change the elements with LayoutComponents Api.
 *
 * @param array $form
 *   The array with the form.
 * @param string $block_id
 *   The id of the block.
 */
function _lc_simple_iframe_form_alter(array &$form, $block_id) {
  /** @var \Drupal\layoutcomponents\Api\Component $lcApi */
  $lcApi = Drupal::service('layoutcomponents.apiComponent');

  // LC url.
  $form['field_sif_url']['widget'][0]['uri']['#description'] = t('Set the url of this iframe');
  $url = $form['field_sif_url']['widget'][0]['uri'];
  $form['field_sif_url']['widget'][0]['uri'] = $lcApi->getComponentElement(
    [
      'id' => 'block_' . $block_id . '-iframe',
      'no_lc' => TRUE,
    ],
    $url
  );

  // LC height.
  $height = $form['field_sif_height']['widget'][0]['value'];
  $form['field_sif_height']['widget'][0]['value'] = $lcApi->getComponentElement(
    [
      'id' => 'block_' . $block_id . '-iframe',
      'input' => 'slider',
      'type' => 'style',
      'style' => 'height_normal',
      'element' => 'slider',
      'class' => 'height',
    ],
    $height
  );

  // LC extra class.
  $extra_class = $form['field_sif_extra_class']['widget'][0]['value'];
  $form['field_sif_extra_class']['widget'][0]['value'] = $lcApi->getComponentElement(
    [
      'id' => 'block_' . $block_id . '-iframe',
      'input' => 'text',
      'type' => 'class',
      'style' => 'extra_class',
      'element' => 'text',
    ],
    $extra_class
  );

  // LC extra attributes.
  $extra_attributes = &$form['field_sif_extra_attributes']['widget'][0]['value'];
  $form['field_sif_extra_attributes']['widget'][0]['value'] = $lcApi->getComponentElement(
    [
      'id' => 'block_' . $block_id . '-iframe',
      'input' => 'text',
      'type' => 'attribute',
      'style' => 'extra_attributes',
      'element' => 'text',
    ],
    $extra_attributes
  );

}