BlockVariantEvents.php

<?php

namespace Drupal\ctools\Event;


/**
 * Contains all events dispatched while manipulating blocks in a variant.
 */
final class BlockVariantEvents {
    
    /**
     * The name of the event triggered when a block is added to a variant.
     *
     * This event allows modules to react to a block being added to a variant. The
     * event listener method receives a \Drupal\ctools\Event\BlockVariantEvent
     * instance.
     *
     * @Event
     *
     * @var string
     */
    const ADD_BLOCK = 'block.add';
    
    /**
     * The name of the event triggered when a block is modified in a variant.
     *
     * This event allows modules to react to a block being modified in a variant.
     * The event listener method receives a \Drupal\ctools\Event\BlockVariantEvent
     * instance.
     *
     * @Event
     *
     * @var string
     */
    const UPDATE_BLOCK = 'block.update';
    
    /**
     * The name of the event triggered when a block is removed from a variant.
     *
     * This event allows modules to react to a block being removed from a variant.
     * The event listener method receives a \Drupal\ctools\Event\BlockVariantEvent
     * instance.
     *
     * @Event
     *
     * @var string
     */
    const DELETE_BLOCK = 'block.delete';

}