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