mustache_templates-8.x-1.0-beta4/src/Element/MustacheTemplateJsInline.php

<?php

namespace Drupal\mustache\Element;

use Drupal\Core\Render\Element\RenderElement;

/**
 * Provides an element for adding Mustache templates as inline Javascript.
 *
 * @RenderElement("mustache_template_js_inline")
 */
class MustacheTemplateJsInline extends RenderElement {

  /**
   * {@inheritdoc}
   */
  public function getInfo() {
    $class = get_class($this);
    return [
      '#theme' => 'mustache_template_js_inline',
      '#pre_render' => [
        [$class, 'generateTemplateContent'],
      ],
    ];
  }

  /**
   * Generates the content of the Mustache template inline.
   *
   * @param array $element
   *   The element to render.
   *
   * @return array
   *   The element to render.
   */
  public static function generateTemplateContent(array $element) {
    /** @var \Drupal\mustache\MustacheTemplates $templates */
    $templates = \Drupal::service('mustache.templates');

    $template_name = $element['#template'];
    if (isset($element['#inline']) && $element['#inline'] !== FALSE) {
      $template_content = $element['#inline'];
    }
    else {
      $template_content = $templates->getContent($template_name);
    }

    $template_encoded = trim(substr(json_encode($template_content, JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE | JSON_HEX_TAG | JSON_HEX_APOS | JSON_HEX_AMP | JSON_HEX_QUOT), 1, -1));

    $element['#template'] = [
      'name' => $template_name,
      'content' => $template_content,
      'encoded' => $template_encoded,
    ];
    $element['#attached']['library'][] = 'mustache/sync.now';

    return $element;
  }

}