events/Classes/Frontend/MetaInformation/DateMetaInformationService.php
Daniel Siepmann 7db61a189a
Add Social Media Tags by default. (#50)
https://ogp.me/ is used by some platforms, especially social media, to
generate previews of shared links.
The extension now delivers default open-graph tags for better user
experience.
Twitter uses its own way which is also supported.
2023-11-30 11:55:32 +01:00

90 lines
2.9 KiB
PHP

<?php
declare(strict_types=1);
/*
* Copyright (C) 2023 Daniel Siepmann <coding@daniel-siepmann.de>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301, USA.
*/
namespace WerkraumMedia\Events\Frontend\MetaInformation;
use TYPO3\CMS\Core\MetaTag\GenericMetaTagManager;
use TYPO3\CMS\Core\MetaTag\MetaTagManagerRegistry;
use WerkraumMedia\Events\Domain\Model\Date;
use WerkraumMedia\Events\Frontend\PageTitleProvider\DateTitleProviderInterface;
/**
* TYPO3 has many different APIs to set meta information like: Page Title, Meta Tags, OpenGraph Tags, etc.
* Those are combined here for Date detail view.
* That way there is a single place to connect the details to TYPO3 APIs.
*/
final class DateMetaInformationService implements DateMetaInformationInterface
{
public function __construct(
private readonly MetaTagManagerRegistry $metaTagManagerRegistry,
private readonly EventMetaInformationService $eventService,
private readonly DateTitleProviderInterface $titleProvider
) {
}
public function setDate(Date $date): void
{
$event = $date->getEvent();
if ($event === null) {
return;
}
// A date mostly sets info based on event, re use existing features.
$this->eventService->setEvent($event);
// Now set date specifics.
$this->titleProvider->setDate($date);
$this->updateTitles();
}
private function updateTitles(): void
{
$title = $this->titleProvider->getTitle();
if ($title === '') {
return;
}
$this->updateOpenGraphTitle($title);
$this->updateTwitterTitle($title);
}
private function updateOpenGraphTitle(string $title): void
{
$manager = $this->metaTagManagerRegistry->getManagerForProperty('og:title');
if ($manager instanceof GenericMetaTagManager) {
return;
}
$manager->removeProperty('og:title');
$manager->addProperty('og:title', $title);
}
private function updateTwitterTitle(string $title): void
{
$manager = $this->metaTagManagerRegistry->getManagerForProperty('twitter:title');
$manager->removeProperty('twitter:title');
$manager->addProperty('twitter:title', $title);
}
}