private function DrupalInstantArticleDisplay::fieldFormatTransfomer in Facebook Instant Articles 7

Formatter for any markup field that must needs be piped through the Transfomer object.

Parameters

$items:

InstantArticle $body:

$instance:

$langcode:

1 call to DrupalInstantArticleDisplay::fieldFormatTransfomer()

DrupalInstantArticleDisplay::fieldFormatterView in modules/fb_instant_articles_display/src/DrupalInstantArticleDisplay.php

File

modules/fb_instant_articles_display/src/DrupalInstantArticleDisplay.php, line 474: Contains \Drupal\fb_instant_articles_display\DrupalInstantArticleDisplay.

Class

DrupalInstantArticleDisplay: Facebook Instant Article node wrapper class. Builds up an InstantArticle object using field formatters.

Namespace

Drupal\fb_instant_articles_display

Code

private function fieldFormatTransfomer($items, $body, $instance, $langcode) {
  $transformer = new Transformer();
  $transformer
    ->loadRules(file_get_contents(__DIR__ . '/../transformer_config.json'));
  drupal_alter('fb_instant_articles_display_transformer', $transformer);
  foreach ($items as $delta => $item) {

    // @see _text_sanitize().
    if (isset($item['safe_value'])) {
      $output = $item['safe_value'];
    }
    else {
      $output = $instance['settings']['text_processing'] ? check_markup($item['value'], $item['format'], $langcode) : check_plain($item['value']);
    }

    // Pass the markup through Transformer::transform().
    $document = new \DOMDocument();

    // Before loading into DOMDocument, setup for success by taking care of
    // encoding issues.  Since we're dealing with HTML snippets, it will
    // always be missing a <meta charset="utf-8" /> or equivalent.
    $output = '<!doctype html><html><head><meta charset="utf-8" /></head><body>' . $output . '</body></html>';
    @$document
      ->loadHTML(decode_entities($output));
    $transformer
      ->transform($body, $document);

    // @todo store entity warnings so we can display them in the admin
  }
}

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