Edit: VisualManagerTrait.php
<?php namespace Nextend\Framework\Pattern; use Nextend\Framework\Plugin; trait VisualManagerTrait { /** @var MVCHelperTrait */ protected $MVCHelper; /** * StyleManager constructor. * * @param MVCHelperTrait $MVCHelper */ public function __construct($MVCHelper) { $this->MVCHelper = $MVCHelper; Plugin::addAction('afterApplicationContent', array( $this, 'display' )); } public abstract function display(); /** * @param MVCHelperTrait $MVCHelper */ public static function enqueue($MVCHelper) { static $enqueued; if (!$enqueued) { new self($MVCHelper); $enqueued = true; } } }
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