IsFileSelectableEvent¶
New in version 12.1.
The PSR-14 event \TYPO3\CMS\Backend\ElementBrowser\Event\IsFileSelectableEvent
allows to decide whether a file can be selected in the file browser.
To get the image dimensions (width and height) of a file, you can retrieve the
file and use the getProperty()
method.
Example¶
<?php
declare(strict_types=1);
namespace MyVendor\MyExtension\Backend\EventListener;
use TYPO3\CMS\Backend\ElementBrowser\Event\IsFileSelectableEvent;
use TYPO3\CMS\Core\Attribute\AsEventListener;
#[AsEventListener(
identifier: 'my-extension/backend/modify-file-is-selectable'
)]
final class MyEventListener
{
public function __invoke(IsFileSelectableEvent $event): void
{
// Deny selection of "png" images
if ($event->getFile()->getExtension() === 'png') {
$event->denyFileSelection();
}
}
}
New in version 13.0: The PHP attribute \TYPO3\CMS\Core\Attribute\AsEventListener
has been
introduced to tag a PHP class as an event listener. Alternatively, or if you
need to be compatible with older TYPO3 versions, you can also register an
event listener via the Configuration/Services.yaml
file. Switch to
an older version of this page for an example or have a look at the section
Implementing an event listener in your extension.
API¶
- class TYPO3\CMS\Backend\ElementBrowser\Event\IsFileSelectableEvent¶
Listeners to this event are able to define whether a file can be selected in the file browser
- getFile()¶
- Return type
TYPO3\CMS\Core\Resource\FileInterface
- isFileSelectable()¶
- Return type
bool
- allowFileSelection()¶
- denyFileSelection()¶