gtm.php

<?php
namespace Bitrix\Landing\Hook\Page;
 
use \Bitrix\Landing\Manager;
use \Bitrix\Landing\Field;
use \Bitrix\Main\Localization\Loc;
 
Loc::loadMessages(__FILE__);
 
class GTM extends \Bitrix\Landing\Hook\Page
{
    protected function getMap()
    {
        $helpUrl = \Bitrix\Landing\Help::getHelpUrl('GTM');
        return array(
            'USE' => new Field\Checkbox('USE', array(
                'title' => 'Google Tag Manager'
            )),
            'COUNTER' => new Field\Text('COUNTER', array(
                'title' => 'Google Tag Manager',
                'placeholder' => Loc::getMessage('LANDING_HOOK_GTM_PLACEHOLDER'),
                'help' => $helpUrl
                    ? '<a href="' . $helpUrl . '" target="_blank">' .
                            Loc::getMessage('LANDING_HOOK_DETAIL_HELP') .
                      '</a>'
                    : ''
            ))
        );
    }
 
    public function isFree()
    {
        return false;
    }
 
    public function isLocked()
    {
        return !\Bitrix\Landing\Restriction\Manager::isAllowed(
            'limit_sites_google_analytics'
        );
    }
 
    public function enabled()
    {
        if ($this->isLocked())
        {
            return false;
        }
 
        if ($this->issetCustomExec())
        {
            return true;
        }
 
        return $this->fields['USE']->getValue() == 'Y';
    }
 
    public function enabledInEditMode()
    {
        return false;
    }
 
    public function exec()
    {
        if ($this->execCustom())
        {
            return;
        }
 
        $counter = \htmlspecialcharsbx(trim($this->fields['COUNTER']));
        $counter = \CUtil::jsEscape($counter);
        if ($counter)
        {
            Cookies::addCookieScript(
                'gtm',
                '(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({\'gtm.start\':new Date().getTime(),event:\'gtm.js\'});
                var f=d.getElementsByTagName(s)[0],
                j=d.createElement(s),
                dl=l!=\'dataLayer\'?\'&l=\'+l:\'\';
                j.async=true;
                j.src=\'https://www.googletagmanager.com/gtm.js?id=\'+i+dl;
                f.parentNode.insertBefore(j,f);})(window,document,\'script\',\'dataLayer\',\'' . $counter . '\');'
            );
            Manager::setPageView(
                'Noscript',
                '<noscript>
                    <iframe src="https://www.googletagmanager.com/ns.html?id=' . $counter . '" height="0" width="0" style="display:none;visibility:hidden"></iframe>
                </noscript>');
        }
    }
}