Chris@0: <?php
Chris@0: 
Chris@0: namespace Drupal\views;
Chris@0: 
Chris@0: /**
Chris@0:  * Caches exposed forms, as they are heavy to generate.
Chris@0:  *
Chris@0:  * @see \Drupal\views\Form\ViewsExposedForm
Chris@0:  */
Chris@0: class ExposedFormCache {
Chris@0: 
Chris@0:   /**
Chris@0:    * Stores the exposed form data.
Chris@0:    *
Chris@0:    * @var array
Chris@0:    */
Chris@0:   protected $cache = [];
Chris@0: 
Chris@0:   /**
Chris@0:    * Save the Views exposed form for later use.
Chris@0:    *
Chris@0:    * @param string $view_id
Chris@0:    *   The views ID.
Chris@0:    * @param string $display_id
Chris@0:    *   The current view display name.
Chris@0:    * @param array $form_output
Chris@0:    *   The form structure. Only needed when inserting the value.
Chris@0:    */
Chris@0:   public function setForm($view_id, $display_id, array $form_output) {
Chris@0:     // Save the form output.
Chris@0:     $views_exposed[$view_id][$display_id] = $form_output;
Chris@0:   }
Chris@0: 
Chris@0:   /**
Chris@0:    * Retrieves the views exposed form from cache.
Chris@0:    *
Chris@0:    * @param string $view_id
Chris@0:    *   The views ID.
Chris@0:    * @param string $display_id
Chris@0:    *   The current view display name.
Chris@0:    *
Chris@0:    * @return array|bool
Chris@0:    *   The form structure, if any, otherwise FALSE.
Chris@0:    */
Chris@0:   public function getForm($view_id, $display_id) {
Chris@0:     // Return the form output, if any.
Chris@0:     if (empty($this->cache[$view_id][$display_id])) {
Chris@0:       return FALSE;
Chris@0:     }
Chris@0:     else {
Chris@0:       return $this->cache[$view_id][$display_id];
Chris@0:     }
Chris@0:   }
Chris@0: 
Chris@0:   /**
Chris@0:    * Rests the form cache.
Chris@0:    */
Chris@0:   public function reset() {
Chris@0:     $this->cache = [];
Chris@0:   }
Chris@0: 
Chris@0: }