LocalActionDefault.php

<?php

namespace Drupal\Core\Menu;

use Drupal\Component\Plugin\PluginBase;
use Drupal\Core\Cache\Cache;
use Drupal\Core\Cache\CacheableDependencyInterface;
use Drupal\Core\DependencyInjection\DependencySerializationTrait;
use Drupal\Core\Plugin\ContainerFactoryPluginInterface;
use Drupal\Core\Routing\RouteMatchInterface;
use Drupal\Core\Routing\RouteProviderInterface;
use Symfony\Component\DependencyInjection\ContainerInterface;
use Symfony\Component\HttpFoundation\Request;

/**
 * Provides a default implementation for local action plugins.
 */
class LocalActionDefault extends PluginBase implements LocalActionInterface, ContainerFactoryPluginInterface, CacheableDependencyInterface {
    use DependencySerializationTrait;
    
    /**
     * The route provider to load routes by name.
     *
     * @var \Drupal\Core\Routing\RouteProviderInterface
     */
    protected $routeProvider;
    
    /**
     * Constructs a LocalActionDefault object.
     *
     * @param array $configuration
     *   A configuration array containing information about the plugin instance.
     * @param string $plugin_id
     *   The plugin_id for the plugin instance.
     * @param mixed $plugin_definition
     *   The plugin implementation definition.
     * @param \Drupal\Core\Routing\RouteProviderInterface $route_provider
     *   The route provider to load routes by name.
     */
    public function __construct(array $configuration, $plugin_id, $plugin_definition, RouteProviderInterface $route_provider) {
        parent::__construct($configuration, $plugin_id, $plugin_definition);
        $this->routeProvider = $route_provider;
    }
    
    /**
     * {@inheritdoc}
     */
    public static function create(ContainerInterface $container, array $configuration, $plugin_id, $plugin_definition) {
        return new static($configuration, $plugin_id, $plugin_definition, $container->get('router.route_provider'));
    }
    
    /**
     * {@inheritdoc}
     */
    public function getRouteName() {
        return $this->pluginDefinition['route_name'];
    }
    
    /**
     * {@inheritdoc}
     */
    public function getTitle(Request $request = NULL) {
        // Subclasses may pull in the request or specific attributes as parameters.
        // The title from YAML file discovery may be a TranslatableMarkup object.
        return (string) $this->pluginDefinition['title'];
    }
    
    /**
     * {@inheritdoc}
     */
    public function getWeight() {
        return $this->pluginDefinition['weight'];
    }
    
    /**
     * {@inheritdoc}
     */
    public function getRouteParameters(RouteMatchInterface $route_match) {
        $route_parameters = $this->pluginDefinition['route_parameters'] ?? [];
        $route = $this->routeProvider
            ->getRouteByName($this->getRouteName());
        $variables = $route->compile()
            ->getVariables();
        // Normally the \Drupal\Core\ParamConverter\ParamConverterManager has
        // run, and the route parameters have been upcast. The original values can
        // be retrieved from the raw parameters. For example, if the route's path is
        // /filter/tips/{filter_format} and the path is /filter/tips/plain_text then
        // $raw_parameters->get('filter_format') == 'plain_text'. Parameters that
        // are not represented in the route path as slugs might be added by a route
        // enhancer and will not be present in the raw parameters.
        $raw_parameters = $route_match->getRawParameters();
        $parameters = $route_match->getParameters();
        foreach ($variables as $name) {
            if (isset($route_parameters[$name])) {
                continue;
            }
            if ($raw_parameters->has($name)) {
                $route_parameters[$name] = $raw_parameters->get($name);
            }
            elseif ($parameters->has($name)) {
                $route_parameters[$name] = $parameters->get($name);
            }
        }
        // The UrlGenerator will throw an exception if expected parameters are
        // missing. This method should be overridden if that is possible.
        return $route_parameters;
    }
    
    /**
     * {@inheritdoc}
     */
    public function getOptions(RouteMatchInterface $route_match) {
        return (array) $this->pluginDefinition['options'];
    }
    
    /**
     * {@inheritdoc}
     */
    public function getCacheTags() {
        if (!isset($this->pluginDefinition['cache_tags'])) {
            return [];
        }
        return $this->pluginDefinition['cache_tags'];
    }
    
    /**
     * {@inheritdoc}
     */
    public function getCacheContexts() {
        if (!isset($this->pluginDefinition['cache_contexts'])) {
            return [];
        }
        return $this->pluginDefinition['cache_contexts'];
    }
    
    /**
     * {@inheritdoc}
     */
    public function getCacheMaxAge() {
        if (!isset($this->pluginDefinition['cache_max_age'])) {
            return Cache::PERMANENT;
        }
        return $this->pluginDefinition['cache_max_age'];
    }

}