Chris@0: <?php
Chris@0: 
Chris@0: namespace Drupal\Core\Ajax;
Chris@0: 
Chris@0: /**
Chris@0:  * An AJAX command for adding css to the page via ajax.
Chris@0:  *
Chris@0:  * This command is implemented by Drupal.AjaxCommands.prototype.add_css()
Chris@0:  * defined in misc/ajax.js.
Chris@0:  *
Chris@0:  * @see misc/ajax.js
Chris@0:  *
Chris@0:  * @ingroup ajax
Chris@0:  */
Chris@0: class AddCssCommand implements CommandInterface {
Chris@0: 
Chris@0:   /**
Chris@0:    * A string that contains the styles to be added to the page.
Chris@0:    *
Chris@0:    * It should include the wrapping style tag.
Chris@0:    *
Chris@0:    * @var string
Chris@0:    */
Chris@0:   protected $styles;
Chris@0: 
Chris@0:   /**
Chris@0:    * Constructs an AddCssCommand.
Chris@0:    *
Chris@0:    * @param string $styles
Chris@0:    *   A string that contains the styles to be added to the page, including the
Chris@0:    *   wrapping <style> tag.
Chris@0:    */
Chris@0:   public function __construct($styles) {
Chris@0:     $this->styles = $styles;
Chris@0:   }
Chris@0: 
Chris@0:   /**
Chris@0:    * Implements Drupal\Core\Ajax\CommandInterface:render().
Chris@0:    */
Chris@0:   public function render() {
Chris@0: 
Chris@0:     return [
Chris@0:       'command' => 'add_css',
Chris@0:       'data' => $this->styles,
Chris@0:     ];
Chris@0:   }
Chris@0: 
Chris@0: }