script-loader-tag.php

<?php

namespace cookiebot_addons\lib\script_loader_tag;

class Script_Loader_Tag implements Script_Loader_Tag_Interface {

	/**
	 * List of tags to load in cookiebot attributes
	 *
	 * @var array
	 *
	 * @since 1.1.0
	 */
	private $tags = array();

	/**
	 * Cookiebot_Script_Loader_Tag constructor.
	 * Adds filter to enhance script attribute
	 *
	 * @since 1.1.0
	 */
	public function __construct() {
		add_filter( 'script_loader_tag', array( $this, 'cookiebot_add_consent_attribute_to_tag' ), 10, 3 );
	}

	/**
	 * Adds enqueue script handle tag to the array of tags.
	 * So that the script can be updated with cookieconsent attribute.
	 *
	 * @param $tag  string  Enqueue script handle name
	 * @param $type array
	 *
	 * @since 1.2.0
	 */
	public function add_tag( $tag, $type ) {
		$this->tags[ $tag ] = $type;
	}

	/**
	 * Modifies external links to google analytics
	 *
	 * @param $tag
	 * @param $handle
	 * @param $src
	 *
	 * @return string
	 *
	 * @since 1.2.0
	 */
	public function cookiebot_add_consent_attribute_to_tag( $tag, $handle, $src ) {
		if ( array_key_exists( $handle, $this->tags ) ) {
			return '<script src="' . $src . '" type="text/plain" data-cookieconsent="' . implode( ',', $this->tags[ $handle ] ) . '"></script>';
		}

		return $tag;
	}
}