ContextualLinkDefault.php

<?php

namespace Drupal\Core\Menu;

use Drupal\Component\Plugin\PluginBase;
use Symfony\Component\HttpFoundation\Request;

/**
 * Provides a common base implementation of a contextual link.
 */
class ContextualLinkDefault extends PluginBase implements ContextualLinkInterface {
    
    /**
     * {@inheritdoc}
     */
    public function getTitle(Request $request = NULL) {
        // The title from YAML file discovery may be a TranslatableMarkup object.
        return (string) $this->pluginDefinition['title'];
    }
    
    /**
     * {@inheritdoc}
     */
    public function getRouteName() {
        return $this->pluginDefinition['route_name'];
    }
    
    /**
     * {@inheritdoc}
     */
    public function getGroup() {
        return $this->pluginDefinition['group'];
    }
    
    /**
     * {@inheritdoc}
     */
    public function getOptions() {
        return $this->pluginDefinition['options'];
    }
    
    /**
     * {@inheritdoc}
     */
    public function getWeight() {
        return $this->pluginDefinition['weight'];
    }

}