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<?php
declare(strict_types=1);
/*
* This file is part of Contao.
*
* (c) Leo Feyer
*
* @license LGPL-3.0-or-later
*/
namespace Contao\CoreBundle\Image;
use Contao\BackendUser;
use Contao\CoreBundle\Event\ContaoCoreEvents;
use Contao\CoreBundle\Event\ImageSizesEvent;
use Contao\CoreBundle\Framework\ContaoFramework;
use Contao\StringUtil;
use Doctrine\DBAL\Connection;
use Symfony\Component\EventDispatcher\EventDispatcherInterface;
use Symfony\Contracts\Service\ResetInterface;
use Symfony\Contracts\Translation\TranslatorInterface;
class ImageSizes implements ResetInterface
{
private Connection $connection;
private EventDispatcherInterface $eventDispatcher;
private ContaoFramework $framework;
private TranslatorInterface $translator;
private array $predefinedSizes = [];
private ?array $options = null;
/**
* @internal
*/
public function __construct(Connection $connection, EventDispatcherInterface $eventDispatcher, ContaoFramework $framework, TranslatorInterface $translator)
{
$this->connection = $connection;
$this->eventDispatcher = $eventDispatcher;
$this->framework = $framework;
$this->translator = $translator;
}
/**
* Sets the predefined image sizes.
*/
public function setPredefinedSizes(array $predefinedSizes): void
{
$this->predefinedSizes = $predefinedSizes;
}
/**
* Returns the image sizes as options suitable for widgets.
*
* @return array<string, array<string>>
*/
public function getAllOptions(): array
{
$this->loadOptions();
$event = new ImageSizesEvent($this->options);
$this->eventDispatcher->dispatch($event, ContaoCoreEvents::IMAGE_SIZES_ALL);
return $event->getImageSizes();
}
/**
* Returns the image sizes for the given user suitable for widgets.
*
* @return array<string, array<string>>
*/
public function getOptionsForUser(BackendUser $user): array
{
$this->loadOptions();
if ($user->isAdmin) {
$event = new ImageSizesEvent($this->options, $user);
} else {
$options = array_map(
static fn ($val) => is_numeric($val) ? (int) $val : $val,
StringUtil::deserialize($user->imageSizes, true)
);
$event = new ImageSizesEvent($this->filterOptions($options), $user);
}
$this->eventDispatcher->dispatch($event, ContaoCoreEvents::IMAGE_SIZES_USER);
return $event->getImageSizes();
}
public function reset(): void
{
$this->options = null;
}
/**
* Loads the options from the database.
*/
private function loadOptions(): void
{
if (null !== $this->options) {
return;
}
// The framework is required to have the TL_CROP options available
$this->framework->initialize();
// Backwards compatibility
$this->options = $GLOBALS['TL_CROP'] ?? [];
if (
3 !== \count($this->options)
|| 0 !== \count($this->options['image_sizes'] ?? [])
|| 2 !== \count($this->options['relative'] ?? [])
|| 10 !== \count($this->options['exact'] ?? [])
) {
trigger_deprecation('contao/core-bundle', '4.13', 'Using $GLOBALS[\'TL_CROP\'] has been deprecated and will be removed in Contao 5.0. Use the "contao.image.sizes" service instead.');
}
$rows = $this->connection->fetchAllAssociative(
'SELECT
s.id, s.name, s.width, s.height, t.name as theme
FROM
tl_image_size s
LEFT JOIN
tl_theme t ON s.pid=t.id
ORDER BY
s.pid, s.name'
);
$options = [];
foreach ($this->predefinedSizes as $name => $imageSize) {
$options['image_sizes'][$name] = sprintf(
'%s (%sx%s)',
$this->translator->trans(substr($name, 1), [], 'image_sizes') ?: substr($name, 1),
$imageSize['width'] ?? '',
$imageSize['height'] ?? ''
);
}
foreach ($rows as $imageSize) {
// Prefix theme names that are numeric or collide with existing group names
if (is_numeric($imageSize['theme']) || \in_array($imageSize['theme'], ['exact', 'relative', 'image_sizes'], true)) {
$imageSize['theme'] = 'Theme '.$imageSize['theme'];
}
if (!isset($options[$imageSize['theme']])) {
$options[$imageSize['theme']] = [];
}
$options[$imageSize['theme']][$imageSize['id']] = sprintf(
'%s (%sx%s)',
$imageSize['name'],
$imageSize['width'],
$imageSize['height']
);
}
$this->options = array_merge_recursive($options, $this->options);
}
/**
* Filters the options by the given allowed sizes and returns the result.
*
* @return array<string, array<string>>
*/
private function filterOptions(array $allowedSizes): array
{
if (empty($allowedSizes)) {
return [];
}
$filteredSizes = [];
foreach ($this->options as $group => $sizes) {
if ('relative' === $group || 'exact' === $group) {
$this->filterResizeModes($sizes, $allowedSizes, $filteredSizes, $group);
} else {
$this->filterImageSizes($sizes, $allowedSizes, $filteredSizes, $group);
}
}
return $filteredSizes;
}
private function filterImageSizes(array $sizes, array $allowedSizes, array &$filteredSizes, string $group): void
{
foreach ($sizes as $key => $size) {
if (\in_array($key, $allowedSizes, true)) {
$filteredSizes[$group][$key] = $size;
}
}
}
private function filterResizeModes(array $sizes, array $allowedSizes, array &$filteredSizes, string $group): void
{
foreach ($sizes as $size) {
if (\in_array($size, $allowedSizes, true)) {
$filteredSizes[$group][] = $size;
}
}
}
}

vendor/contao/core-bundle/src/Image/ImageSizes.php line 102