up.php

См. документацию.

<?php
namespace Bitrix\Landing\Hook\Page;
 
use \Bitrix\Landing\Manager;
use \Bitrix\Landing\Assets;
use \Bitrix\Landing\Field;
use \Bitrix\Main\Localization\Loc;
 
Loc::loadMessages(__FILE__);
 
class Up extends \Bitrix\Landing\Hook\Page
{
    protected function getMap()
    {
        return array(
            'SHOW' => new Field\Checkbox('SHOW', array(
                'title' => Loc::getMessage('LANDING_HOOK_UP_SHOW')
            ))
        );
    }

    public function enabled()
    {
        if ($this->issetCustomExec())
        {
            return true;
        }
 
        return $this->fields['SHOW']->getValue() == 'Y';
    }

    public function exec()
    {
        if ($this->execCustom())
        {
            return;
        }
 
        $assets = Assets\Manager::getInstance();
        $assets->addAsset('landing_upper');
    }
}