cssblock.php

См. документацию.

<?php
namespace Bitrix\Landing\Hook\Page;
 
use \Bitrix\Landing\Field;
use \Bitrix\Main\Localization\Loc;
 
Loc::loadMessages(__FILE__);
 
class CssBlock extends \Bitrix\Landing\Hook\Page
{
    protected function getMap()
    {
        return array(
            'USE' => new Field\Checkbox('USE', array(
                'title' => Loc::getMessage('LANDING_HOOK_CSSLOCK_USE')
            )),
            'CODE' => new Field\Textarea('CODE', array(
                'title' => Loc::getMessage('LANDING_HOOK_HEADBLOCK_CSS_CODE'),
                'help' => Loc::getMessage('LANDING_HOOK_HEADBLOCK_CSS_CODE_HELP2'),
                'placeholder' => '* {display: none;}'
            )),
            'FILE' => new Field\Textarea('FILE', array(
                'title' => Loc::getMessage('LANDING_HOOK_HEADBLOCK_CSS_FILE')
            ))
        );
    }

    public function getTitle()
    {
        return Loc::getMessage('LANDING_HOOK_CSSBLOCK_NAME');
    }

    public function getSort()
    {
        return 500;
    }

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

    public function enabledInEditMode()
    {
        return false;
    }

    public function exec()
    {
        if ($this->execCustom())
        {
            return;
        }
 
        $cssCode = trim($this->fields['CODE']);
        $cssFile = trim($this->fields['FILE']);
 
        if ($cssCode != '')
        {
            echo '<style type="text/css">' . $cssCode . '</style>';
        }
        if ($cssFile != '')
        {
            echo '<link href="' . \htmlspecialcharsbx($cssFile) . '" type="text/css"  rel="stylesheet" />';
        }
    }
}