view.php

См. документацию.

<?php
 
namespace Bitrix\Landing\Hook\Page;
 
use Bitrix\Landing\Field;
use Bitrix\Landing\Hook\Page;
use Bitrix\Landing\Manager;
use Bitrix\Main\Localization\Loc;
 
Loc::loadMessages(__FILE__);
 
class View extends Page
{
    public function getItems(): array
    {
        static $items = [];
        if (empty($items))
        {
            $items = [
                'no' => Loc::getMessage('LANDING_HOOK_VIEW_TYPE_NO'),
                'ltr' => Loc::getMessage('LANDING_HOOK_VIEW_TYPE_LTR'),
                'all' => Loc::getMessage('LANDING_HOOK_VIEW_TYPE_ALL'),
                'mobile' => Loc::getMessage('LANDING_HOOK_VIEW_TYPE_MOBILE'),
                'adaptive' => Loc::getMessage('LANDING_HOOK_VIEW_TYPE_ADAPTIVE'),
            ];
        }
        return $items;
    }

    protected function getMap(): array
    {
        return [
            'USE' => new Field\Checkbox('USE', [
                'title' => Loc::getMessage('LANDING_HOOK_VIEW_USE'),
            ]),
            'TYPE' => new Field\Select('TYPE', [
                'title' => Loc::getMessage('LANDING_HOOK_VIEW_TYPE'),
                'options' => $this->getItems(),
            ]),
        ];
    }

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

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

    public function exec(): void
    {
        if ($this->execCustom())
        {
            return;
        }
 
        $type = trim($this->fields['TYPE']);
        $bodyClass = '';
        $mainClasses = '';
 
        if ($type === 'ltr')
        {
            $bodyClass = 'landing-viewtype--ltr';
            $mainClasses = 'g-pt-6 g-px-10 g-pt-30--md g-px-50--md';
        }
        elseif ($type === 'all')
        {
            $bodyClass = 'landing-viewtype--all';
            $mainClasses = 'g-py-6 g-px-10 g-py-30--md g-px-50--md';
        }
        elseif ($type === 'mobile')
        {
            $bodyClass = 'landing-viewtype--mobile';
            $mainClasses = 'mx-auto';
        }
        elseif ($type === 'adaptive')
        {
            $bodyClass = 'landing-viewtype--adaptive';
            // $mainClasses = 'mx-auto';
        }
 
        Manager::setPageView('BodyClass', $bodyClass);
        Manager::setPageView('MainClass', $mainClasses);
    }
}