class ScrollTopCommand in Drupal 9

Provides an AJAX command for scrolling to the top of an element.

This command is implemented in Drupal.AjaxCommands.prototype.viewsScrollTop.

Hierarchy

• class \Drupal\views\Ajax\ScrollTopCommand implements CommandInterface

1 file declares its use of ScrollTopCommand

ViewAjaxController.php in core/modules/views/src/Controller/ViewAjaxController.php

File

core/modules/views/src/Ajax/ScrollTopCommand.php, line 12

Namespace

Drupal\views\Ajax

class ScrollTopCommand implements CommandInterface {

  /**
   * A CSS selector string.
   *
   * @var string
   */
  protected $selector;

  /**
   * Constructs a \Drupal\views\Ajax\ScrollTopCommand object.
   *
   * @param string $selector
   *   A CSS selector.
   */
  public function __construct($selector) {
    $this->selector = $selector;
  }

  /**
   * {@inheritdoc}
   */
  public function render() {
    return [
      'command' => 'viewsScrollTop',
      'selector' => $this->selector,
    ];
  }

}

Members

Name	Modifiers	Type	Description	Overrides
ScrollTopCommand::$selector	protected	property	A CSS selector string.
ScrollTopCommand::render	public	function	Return an array to be run through json_encode and sent to the client. Overrides CommandInterface::render
ScrollTopCommand::__construct	public	function	Constructs a \Drupal\views\Ajax\ScrollTopCommand object.