mustache_templates-8.x-1.0-beta4/modules/mustache_test/src/Controller/MustacheCacheableTestController.php

<?php

namespace Drupal\mustache_test\Controller;

use Drupal\Core\Cache\CacheableJsonResponse;
use Drupal\mustache\Helpers\MustacheRenderTemplate;
use Drupal\mustache_test\TestLinks;

/**
 * A controller delivering cacheable resources for testing Mustache templates.
 */
class MustacheCacheableTestController {

  /**
   * Returns a Json response containing cacheable dummy data.
   *
   * @return \Symfony\Component\HttpFoundation\JsonResponse
   *   A cacheable JSON response.
   */
  public function cacheableJsonFeed() {
    $time_sequence = \Drupal::time()->getRequestTime() - 1636290361;
    $data = [
      'foo' => 'bar',
      'id' => uniqid(),
      'number' => rand(),
      'sequence' => $time_sequence,
      'nested' => ['key' => rand()],
    ];
    $response = new CacheableJsonResponse();
    $response->setJson(json_encode($data));
    $response->setMaxAge(10);
    $response->setSharedMaxAge(10);
    $expires = new \DateTime('now', new \DateTimeZone('UTC'));
    $expires->setTimestamp(\Drupal::time()->getCurrentTime() + 10);
    $response->setExpires($expires);
    return $response;
  }

  /**
   * Returns a plain page for interactively testing using previous data.
   *
   * @return array
   *   A build array for rendering the Mustache template.
   */
  public function pageInteractivePrevious() {
    $build = MustacheRenderTemplate::build('test_previous');
    $build->usingDataFromUrl('/mustache-test/cacheable-json');
    $build->exposeData();
    $build->withClientSynchronization()
      ->morphing()
      ->startsWhenElementWasTriggered('.click-me')
      ->atEvent('click')
      ->always();

    $render = [
      $build->toRenderArray(),
      [
        '#type' => 'markup',
        '#markup' => '<div class="click-me">Click here to refresh!</div>',
      ],
      ['#markup' => TestLinks::get()],
    ];
    return $render;
  }

  /**
   * Returns a plain page for testing magic conditions.
   *
   * @return array
   *   A build array for rendering the Mustache template.
   */
  public function pageMagicConditions() {
    $build = MustacheRenderTemplate::build('test_magic_conditions');
    $build->usingDataFromUrl('/mustache-test/cacheable-json');
    $build->exposeData();
    $build->withClientSynchronization()
      ->morphing()
      ->startsWhenElementWasTriggered('.click-me')
      ->atEvent('click')
      ->always();

    $render = [
      $build->toRenderArray(),
      [
        '#type' => 'markup',
        '#markup' => '<div class="click-me">Click here to refresh!</div>',
      ],
      ['#markup' => TestLinks::get()],
    ];
    return $render;
  }

}