ConfigNamesMapper.php

<?php

namespace Drupal\config_translation;

use Drupal\config_translation\Event\ConfigMapperPopulateEvent;
use Drupal\config_translation\Event\ConfigTranslationEvents;
use Drupal\config_translation\Exception\ConfigMapperLanguageException;
use Drupal\Core\Config\ConfigFactoryInterface;
use Drupal\Core\Config\TypedConfigManagerInterface;
use Drupal\Core\Language\LanguageInterface;
use Drupal\Core\Language\LanguageManagerInterface;
use Drupal\Core\Plugin\PluginBase;
use Drupal\Core\Routing\RouteMatchInterface;
use Drupal\Core\Routing\RouteProviderInterface;
use Drupal\Core\StringTranslation\TranslationInterface;
use Drupal\Core\Plugin\ContainerFactoryPluginInterface;
use Drupal\Core\Url;
use Drupal\locale\LocaleConfigManager;
use Symfony\Component\DependencyInjection\ContainerInterface;
use Symfony\Contracts\EventDispatcher\EventDispatcherInterface;
use Symfony\Component\Routing\Route;
use Symfony\Component\Routing\RouteCollection;

/**
 * Configuration mapper base implementation.
 */
class ConfigNamesMapper extends PluginBase implements ConfigMapperInterface, ContainerFactoryPluginInterface {

  /**
   * The configuration factory.
   *
   * @var \Drupal\Core\Config\ConfigFactoryInterface
   */
  protected $configFactory;

  /**
   * The typed config manager.
   *
   * @var \Drupal\Core\Config\TypedConfigManagerInterface
   */
  protected $typedConfigManager;

  /**
   * The typed configuration manager.
   *
   * @var \Drupal\locale\LocaleConfigManager
   */
  protected $localeConfigManager;

  /**
   * The mapper plugin discovery service.
   *
   * @var \Drupal\config_translation\ConfigMapperManagerInterface
   */
  protected $configMapperManager;

  /**
   * The route provider.
   *
   * @var \Drupal\Core\Routing\RouteProviderInterface
   */
  protected $routeProvider;

  /**
   * The base route object that the mapper is attached to.
   *
   * @var \Symfony\Component\Routing\Route
   */
  protected $baseRoute;

  /**
   * The available routes.
   *
   * @var \Symfony\Component\Routing\RouteCollection
   */
  protected $routeCollection;

  /**
   * The language code of the language this mapper, if any.
   *
   * @var string|null
   */
  protected $langcode = NULL;

  /**
   * The language manager.
   *
   * @var \Drupal\Core\Language\LanguageManagerInterface
   */
  protected $languageManager;

  /**
   * The event dispatcher.
   *
   * @var \Symfony\Contracts\EventDispatcher\EventDispatcherInterface
   */
  protected $eventDispatcher;

  /**
   * Constructs a ConfigNamesMapper.
   *
   * @param $plugin_id
   *   The config mapper plugin ID.
   * @param mixed $plugin_definition
   *   An array of plugin information with the following keys:
   *   - title: The title of the mapper, used for generating page titles.
   *   - base_route_name: The route name of the base route this mapper is
   *     attached to.
   *   - names: (optional) An array of configuration names.
   *   - weight: (optional) The weight of this mapper, used in mapper listings.
   *     Defaults to 20.
   *   - list_controller: (optional) Class name for list controller used to
   *     generate lists of this type of configuration.
   * @param \Drupal\Core\Config\ConfigFactoryInterface $config_factory
   *   The configuration factory.
   * @param \Drupal\Core\Config\TypedConfigManagerInterface $typed_config
   *   The typed configuration manager.
   * @param \Drupal\locale\LocaleConfigManager $locale_config_manager
   *   The locale configuration manager.
   * @param \Drupal\config_translation\ConfigMapperManagerInterface $config_mapper_manager
   *   The mapper plugin discovery service.
   * @param \Drupal\Core\Routing\RouteProviderInterface $route_provider
   *   The route provider.
   * @param \Drupal\Core\StringTranslation\TranslationInterface $string_translation
   *   The string translation manager.
   * @param \Drupal\Core\Language\LanguageManagerInterface $language_manager
   *   The language manager.
   * @param \Symfony\Contracts\EventDispatcher\EventDispatcherInterface $event_dispatcher
   *   (optional) The event dispatcher.
   *
   * @throws \Symfony\Component\Routing\Exception\RouteNotFoundException
   *   Throws an exception if the route specified by the 'base_route_name' in
   *   the plugin definition could not be found by the route provider.
   */
  public function __construct($plugin_id, $plugin_definition, ConfigFactoryInterface $config_factory, TypedConfigManagerInterface $typed_config, LocaleConfigManager $locale_config_manager, ConfigMapperManagerInterface $config_mapper_manager, RouteProviderInterface $route_provider, TranslationInterface $string_translation, LanguageManagerInterface $language_manager, EventDispatcherInterface $event_dispatcher = NULL) {
    $this->pluginId = $plugin_id;
    $this->pluginDefinition = $plugin_definition;
    $this->routeProvider = $route_provider;
    $this->configFactory = $config_factory;
    $this->typedConfigManager = $typed_config;
    $this->localeConfigManager = $locale_config_manager;
    $this->configMapperManager = $config_mapper_manager;
    $this->stringTranslation = $string_translation;
    $this->languageManager = $language_manager;
    $this->eventDispatcher = $event_dispatcher ?: \Drupal::service('event_dispatcher');
  }

  /**
   * {@inheritdoc}
   */
  public static function create(ContainerInterface $container, array $configuration, $plugin_id, $plugin_definition) {

    // Note that we ignore the plugin $configuration because mappers have
    // nothing to configure in themselves.
    return new static($plugin_id, $plugin_definition, $container
      ->get('config.factory'), $container
      ->get('config.typed'), $container
      ->get('locale.config_manager'), $container
      ->get('plugin.manager.config_translation.mapper'), $container
      ->get('router.route_provider'), $container
      ->get('string_translation'), $container
      ->get('language_manager'), $container
      ->get('event_dispatcher'));
  }

  /**
   * {@inheritdoc}
   */
  public function setRouteCollection(RouteCollection $collection) {
    $this->routeCollection = $collection;
  }

  /**
   * {@inheritdoc}
   */
  public function getTitle() {

    // A title from a *.config_translation.yml. Should be translated for
    // display in the current page language.
    return $this
      ->t($this->pluginDefinition['title']);
  }

  /**
   * {@inheritdoc}
   */
  public function getBaseRouteName() {
    return $this->pluginDefinition['base_route_name'];
  }

  /**
   * {@inheritdoc}
   */
  public function getBaseRouteParameters() {
    return [];
  }

  /**
   * {@inheritdoc}
   */
  public function getBaseRoute() {
    if ($this->routeCollection) {
      return $this->routeCollection
        ->get($this
        ->getBaseRouteName());
    }
    else {
      return $this->routeProvider
        ->getRouteByName($this
        ->getBaseRouteName());
    }
  }

  /**
   * Allows to process all config translation routes.
   *
   * @param \Symfony\Component\Routing\Route $route
   *   The route object to process.
   */
  protected function processRoute(Route $route) {
  }

  /**
   * {@inheritdoc}
   */
  public function getBasePath() {
    return Url::fromRoute($this
      ->getBaseRouteName(), $this
      ->getBaseRouteParameters())
      ->getInternalPath();
  }

  /**
   * {@inheritdoc}
   */
  public function getOverviewRouteName() {
    return 'config_translation.item.overview.' . $this
      ->getBaseRouteName();
  }

  /**
   * {@inheritdoc}
   */
  public function getOverviewRouteParameters() {
    return $this
      ->getBaseRouteParameters();
  }

  /**
   * {@inheritdoc}
   */
  public function getOverviewRoute() {
    $route = new Route($this
      ->getBaseRoute()
      ->getPath() . '/translate', [
      '_controller' => '\\Drupal\\config_translation\\Controller\\ConfigTranslationController::itemPage',
      'plugin_id' => $this
        ->getPluginId(),
    ], [
      '_config_translation_overview_access' => 'TRUE',
    ]);
    $this
      ->processRoute($route);
    return $route;
  }

  /**
   * {@inheritdoc}
   */
  public function getOverviewPath() {
    return Url::fromRoute($this
      ->getOverviewRouteName(), $this
      ->getOverviewRouteParameters())
      ->getInternalPath();
  }

  /**
   * {@inheritdoc}
   */
  public function getAddRouteName() {
    return 'config_translation.item.add.' . $this
      ->getBaseRouteName();
  }

  /**
   * {@inheritdoc}
   */
  public function getAddRouteParameters() {

    // If sub-classes provide route parameters in getBaseRouteParameters(), they
    // probably also want to provide those for the add, edit, and delete forms.
    $parameters = $this
      ->getBaseRouteParameters();
    $parameters['langcode'] = $this->langcode;
    return $parameters;
  }

  /**
   * {@inheritdoc}
   */
  public function getAddRoute() {
    $route = new Route($this
      ->getBaseRoute()
      ->getPath() . '/translate/{langcode}/add', [
      '_form' => '\\Drupal\\config_translation\\Form\\ConfigTranslationAddForm',
      'plugin_id' => $this
        ->getPluginId(),
    ], [
      '_config_translation_form_access' => 'TRUE',
    ]);
    $this
      ->processRoute($route);
    return $route;
  }

  /**
   * {@inheritdoc}
   */
  public function getEditRouteName() {
    return 'config_translation.item.edit.' . $this
      ->getBaseRouteName();
  }

  /**
   * {@inheritdoc}
   */
  public function getEditRouteParameters() {
    return $this
      ->getAddRouteParameters();
  }

  /**
   * {@inheritdoc}
   */
  public function getEditRoute() {
    $route = new Route($this
      ->getBaseRoute()
      ->getPath() . '/translate/{langcode}/edit', [
      '_form' => '\\Drupal\\config_translation\\Form\\ConfigTranslationEditForm',
      'plugin_id' => $this
        ->getPluginId(),
    ], [
      '_config_translation_form_access' => 'TRUE',
    ]);
    $this
      ->processRoute($route);
    return $route;
  }

  /**
   * {@inheritdoc}
   */
  public function getDeleteRouteName() {
    return 'config_translation.item.delete.' . $this
      ->getBaseRouteName();
  }

  /**
   * {@inheritdoc}
   */
  public function getDeleteRouteParameters() {
    return $this
      ->getAddRouteParameters();
  }

  /**
   * {@inheritdoc}
   */
  public function getDeleteRoute() {
    $route = new Route($this
      ->getBaseRoute()
      ->getPath() . '/translate/{langcode}/delete', [
      '_form' => '\\Drupal\\config_translation\\Form\\ConfigTranslationDeleteForm',
      'plugin_id' => $this
        ->getPluginId(),
    ], [
      '_config_translation_form_access' => 'TRUE',
    ]);
    $this
      ->processRoute($route);
    return $route;
  }

  /**
   * {@inheritdoc}
   */
  public function getConfigNames() {
    return $this->pluginDefinition['names'];
  }

  /**
   * {@inheritdoc}
   */
  public function addConfigName($name) {
    $this->pluginDefinition['names'][] = $name;
  }

  /**
   * {@inheritdoc}
   */
  public function getWeight() {
    return $this->pluginDefinition['weight'];
  }

  /**
   * {@inheritdoc}
   */
  public function populateFromRouteMatch(RouteMatchInterface $route_match) {
    $this->langcode = $route_match
      ->getParameter('langcode');
    $event = new ConfigMapperPopulateEvent($this, $route_match);
    $this->eventDispatcher
      ->dispatch($event, ConfigTranslationEvents::POPULATE_MAPPER);
  }

  /**
   * {@inheritdoc}
   */
  public function getTypeLabel() {
    return $this
      ->getTitle();
  }

  /**
   * {@inheritdoc}
   */
  public function getLangcode() {
    $langcodes = array_map([
      $this,
      'getLangcodeFromConfig',
    ], $this
      ->getConfigNames());
    if (count(array_unique($langcodes)) > 1) {
      throw new ConfigMapperLanguageException('A config mapper can only contain configuration for a single language.');
    }
    return reset($langcodes);
  }

  /**
   * {@inheritdoc}
   */
  public function getLangcodeFromConfig($config_name) {

    // Default to English if no language code was provided in the file.
    // Although it is a best practice to include a language code, if the
    // developer did not think about a multilingual use case, we fall back
    // on assuming the file is English.
    return $this->configFactory
      ->get($config_name)
      ->get('langcode') ?: 'en';
  }

  /**
   * {@inheritdoc}
   */
  public function setLangcode($langcode) {
    $this->langcode = $langcode;
    return $this;
  }

  /**
   * {@inheritdoc}
   */
  public function getConfigData() {
    $config_data = [];
    foreach ($this
      ->getConfigNames() as $name) {
      $config_data[$name] = $this->configFactory
        ->getEditable($name)
        ->get();
    }
    return $config_data;
  }

  /**
   * {@inheritdoc}
   */
  public function hasSchema() {
    foreach ($this
      ->getConfigNames() as $name) {
      if (!$this->typedConfigManager
        ->hasConfigSchema($name)) {
        return FALSE;
      }
    }
    return TRUE;
  }

  /**
   * {@inheritdoc}
   */
  public function hasTranslatable() {
    foreach ($this
      ->getConfigNames() as $name) {
      if ($this->configMapperManager
        ->hasTranslatable($name)) {
        return TRUE;
      }
    }
    return FALSE;
  }

  /**
   * {@inheritdoc}
   */
  public function hasTranslation(LanguageInterface $language) {
    foreach ($this
      ->getConfigNames() as $name) {
      if ($this->localeConfigManager
        ->hasTranslation($name, $language
        ->getId())) {
        return TRUE;
      }
    }
    return FALSE;
  }

  /**
   * {@inheritdoc}
   */
  public function getTypeName() {
    return $this
      ->t('Settings');
  }

  /**
   * {@inheritdoc}
   */
  public function getOperations() {
    return [
      'translate' => [
        'title' => $this
          ->t('Translate'),
        'url' => Url::fromRoute($this
          ->getOverviewRouteName(), $this
          ->getOverviewRouteParameters()),
      ],
    ];
  }

  /**
   * {@inheritdoc}
   */
  public function getContextualLinkGroup() {
    return NULL;
  }

}