Class AbstractCallbackListener

Class AbstractCallbackListener.

Abstract base class for a callback listener.

Direct known subclasses

DcGeneral\Contao\Callback\AbstractReturningCallbackListener, DcGeneral\Contao\Callback\AbstractStaticCallbackListener, DcGeneral\Contao\Callback\ContainerOnCopyCallbackListener, DcGeneral\Contao\Callback\ContainerOnDeleteCallbackListener

Indirect known subclasses

DcGeneral\Contao\Callback\ContainerGetBreadcrumbCallbackListener, DcGeneral\Contao\Callback\ContainerGlobalButtonCallbackListener, DcGeneral\Contao\Callback\ModelLabelCallbackListener, DcGeneral\Contao\Callback\ModelOperationButtonCallbackListener, DcGeneral\Contao\Callback\ModelOptionsCallbackListener, DcGeneral\Contao\Callback\PropertyInputFieldCallbackListener, DcGeneral\Contao\Callback\PropertyInputFieldGetWizardCallbackListener, DcGeneral\Contao\Callback\PropertyOnLoadCallbackListener, DcGeneral\Contao\Callback\PropertyOnSaveCallbackListener, DcGeneral\Contao\Callback\ContainerHeaderCallbackListener, DcGeneral\Contao\Callback\ContainerOnCutCallbackListener, DcGeneral\Contao\Callback\ContainerOnLoadCallbackListener, DcGeneral\Contao\Callback\ContainerOnSubmitCallbackListener, DcGeneral\Contao\Callback\ContainerPasteButtonCallbackListener, DcGeneral\Contao\Callback\ContainerPasteRootButtonCallbackListener, DcGeneral\Contao\Callback\ModelChildRecordCallbackListener, DcGeneral\Contao\Callback\ModelGroupCallbackListener

Abstract
Namespace: DcGeneral\Contao\Callback
Package: DcGeneral\Contao\Callback
Located at Contao/Callback/AbstractCallbackListener.php

Methods summary
`public`	# `__construct( array\|callable $callback = null )` Create a new instance of the listener. Create a new instance of the listener. Parameters `$callback` `array\|callable` $callback The callback to call when invoked.
`public array\|callable`	# `getCallback( )` Retrieve the attached callback. Retrieve the attached callback. Returns `array\|callable`
`abstract public array`	# `getArgs( Symfony\Component\EventDispatcher\Event $event )` Retrieve the arguments for the callback. Retrieve the arguments for the callback. Parameters `$event` `Symfony\Component\EventDispatcher\Event` $event The event being emitted. Returns `array`
`public`	# `__invoke( Symfony\Component\EventDispatcher\Event $event )` Invoke the callback. Invoke the callback. Parameters `$event` `Symfony\Component\EventDispatcher\Event` $event The Event for which the callback shall be invoked.

Properties summary
`protected array\|callable`	`$callback`		# The callback to use. The callback to use.