Chris@0: <?php
Chris@0: 
Chris@0: namespace Drupal\text;
Chris@0: 
Chris@14: use Drupal\Core\Cache\CacheableDependencyInterface;
Chris@0: use Drupal\Core\TypedData\DataDefinitionInterface;
Chris@0: use Drupal\Core\TypedData\TypedDataInterface;
Chris@0: use Drupal\Core\TypedData\TypedData;
Chris@14: use Drupal\filter\FilterProcessResult;
Chris@14: use Drupal\filter\Render\FilteredMarkup;
Chris@0: 
Chris@0: /**
Chris@0:  * A computed property for processing text with a format.
Chris@0:  *
Chris@0:  * Required settings (below the definition's 'settings' key) are:
Chris@0:  *  - text source: The text property containing the to be processed text.
Chris@0:  */
Chris@14: class TextProcessed extends TypedData implements CacheableDependencyInterface {
Chris@0: 
Chris@0:   /**
Chris@0:    * Cached processed text.
Chris@0:    *
Chris@14:    * @var \Drupal\filter\FilterProcessResult|null
Chris@0:    */
Chris@0:   protected $processed = NULL;
Chris@0: 
Chris@0:   /**
Chris@0:    * {@inheritdoc}
Chris@0:    */
Chris@0:   public function __construct(DataDefinitionInterface $definition, $name = NULL, TypedDataInterface $parent = NULL) {
Chris@0:     parent::__construct($definition, $name, $parent);
Chris@0: 
Chris@0:     if ($definition->getSetting('text source') === NULL) {
Chris@0:       throw new \InvalidArgumentException("The definition's 'text source' key has to specify the name of the text property to be processed.");
Chris@0:     }
Chris@0:   }
Chris@0: 
Chris@0:   /**
Chris@0:    * {@inheritdoc}
Chris@0:    */
Chris@0:   public function getValue() {
Chris@0:     if ($this->processed !== NULL) {
Chris@14:       return FilteredMarkup::create($this->processed->getProcessedText());
Chris@0:     }
Chris@0: 
Chris@0:     $item = $this->getParent();
Chris@0:     $text = $item->{($this->definition->getSetting('text source'))};
Chris@0: 
Chris@14:     // Avoid doing unnecessary work on empty strings.
Chris@0:     if (!isset($text) || $text === '') {
Chris@14:       $this->processed = new FilterProcessResult('');
Chris@0:     }
Chris@0:     else {
Chris@14:       $build = [
Chris@14:         '#type' => 'processed_text',
Chris@14:         '#text' => $text,
Chris@14:         '#format' => $item->format,
Chris@14:         '#filter_types_to_skip' => [],
Chris@14:         '#langcode' => $item->getLangcode(),
Chris@14:       ];
Chris@14:       // Capture the cacheability metadata associated with the processed text.
Chris@14:       $processed_text = $this->getRenderer()->renderPlain($build);
Chris@14:       $this->processed = FilterProcessResult::createFromRenderArray($build)->setProcessedText((string) $processed_text);
Chris@0:     }
Chris@14:     return FilteredMarkup::create($this->processed->getProcessedText());
Chris@0:   }
Chris@0: 
Chris@0:   /**
Chris@0:    * {@inheritdoc}
Chris@0:    */
Chris@0:   public function setValue($value, $notify = TRUE) {
Chris@0:     $this->processed = $value;
Chris@0:     // Notify the parent of any changes.
Chris@0:     if ($notify && isset($this->parent)) {
Chris@0:       $this->parent->onChange($this->name);
Chris@0:     }
Chris@0:   }
Chris@0: 
Chris@14:   /**
Chris@14:    * {@inheritdoc}
Chris@14:    */
Chris@14:   public function getCacheTags() {
Chris@14:     $this->getValue();
Chris@14:     return $this->processed->getCacheTags();
Chris@14:   }
Chris@14: 
Chris@14:   /**
Chris@14:    * {@inheritdoc}
Chris@14:    */
Chris@14:   public function getCacheContexts() {
Chris@14:     $this->getValue();
Chris@14:     return $this->processed->getCacheContexts();
Chris@14:   }
Chris@14: 
Chris@14:   /**
Chris@14:    * {@inheritdoc}
Chris@14:    */
Chris@14:   public function getCacheMaxAge() {
Chris@14:     $this->getValue();
Chris@14:     return $this->processed->getCacheMaxAge();
Chris@14:   }
Chris@14: 
Chris@14:   /**
Chris@14:    * Returns the renderer service.
Chris@14:    *
Chris@14:    * @return \Drupal\Core\Render\RendererInterface
Chris@14:    */
Chris@14:   protected function getRenderer() {
Chris@14:     return \Drupal::service('renderer');
Chris@14:   }
Chris@14: 
Chris@0: }