annotate core/modules/language/src/Plugin/Condition/Language.php @ 19:fa3358dc1485 tip

Add ndrum files
author Chris Cannam
date Wed, 28 Aug 2019 13:14:47 +0100
parents af1871eacc83
children
rev   line source
Chris@0 1 <?php
Chris@0 2
Chris@0 3 namespace Drupal\language\Plugin\Condition;
Chris@0 4
Chris@0 5 use Drupal\Core\Condition\ConditionPluginBase;
Chris@0 6 use Drupal\Core\Form\FormStateInterface;
Chris@0 7 use Drupal\Core\Language\LanguageInterface;
Chris@0 8 use Drupal\Core\Language\LanguageManagerInterface;
Chris@0 9 use Drupal\Core\Plugin\ContainerFactoryPluginInterface;
Chris@0 10 use Symfony\Component\DependencyInjection\ContainerInterface;
Chris@0 11
Chris@0 12 /**
Chris@0 13 * Provides a 'Language' condition.
Chris@0 14 *
Chris@0 15 * @Condition(
Chris@0 16 * id = "language",
Chris@0 17 * label = @Translation("Language"),
Chris@18 18 * context_definitions = {
Chris@0 19 * "language" = @ContextDefinition("language", label = @Translation("Language"))
Chris@0 20 * }
Chris@0 21 * )
Chris@0 22 */
Chris@0 23 class Language extends ConditionPluginBase implements ContainerFactoryPluginInterface {
Chris@0 24
Chris@0 25 /**
Chris@0 26 * The Language manager.
Chris@0 27 *
Chris@0 28 * @var \Drupal\Core\Language\LanguageManagerInterface
Chris@0 29 */
Chris@0 30 protected $languageManager;
Chris@0 31
Chris@0 32 /**
Chris@0 33 * Creates a new Language instance.
Chris@0 34 *
Chris@0 35 * @param \Drupal\Core\Language\LanguageManagerInterface $language_manager
Chris@0 36 * The language manager.
Chris@0 37 * @param array $configuration
Chris@0 38 * The plugin configuration, i.e. an array with configuration values keyed
Chris@0 39 * by configuration option name. The special key 'context' may be used to
Chris@0 40 * initialize the defined contexts by setting it to an array of context
Chris@0 41 * values keyed by context names.
Chris@0 42 * @param string $plugin_id
Chris@0 43 * The plugin_id for the plugin instance.
Chris@0 44 * @param mixed $plugin_definition
Chris@0 45 * The plugin implementation definition.
Chris@0 46 */
Chris@0 47 public function __construct(LanguageManagerInterface $language_manager, array $configuration, $plugin_id, $plugin_definition) {
Chris@0 48 parent::__construct($configuration, $plugin_id, $plugin_definition);
Chris@0 49 $this->languageManager = $language_manager;
Chris@0 50 }
Chris@0 51
Chris@0 52 /**
Chris@0 53 * {@inheritdoc}
Chris@0 54 */
Chris@0 55 public static function create(ContainerInterface $container, array $configuration, $plugin_id, $plugin_definition) {
Chris@0 56 return new static(
Chris@0 57 $container->get('language_manager'),
Chris@0 58 $configuration,
Chris@0 59 $plugin_id,
Chris@0 60 $plugin_definition
Chris@0 61 );
Chris@0 62 }
Chris@0 63
Chris@0 64 /**
Chris@0 65 * {@inheritdoc}
Chris@0 66 */
Chris@0 67 public function buildConfigurationForm(array $form, FormStateInterface $form_state) {
Chris@0 68 if ($this->languageManager->isMultilingual()) {
Chris@0 69 // Fetch languages.
Chris@0 70 $languages = $this->languageManager->getLanguages();
Chris@0 71 $langcodes_options = [];
Chris@0 72 foreach ($languages as $language) {
Chris@0 73 $langcodes_options[$language->getId()] = $language->getName();
Chris@0 74 }
Chris@0 75 $form['langcodes'] = [
Chris@0 76 '#type' => 'checkboxes',
Chris@0 77 '#title' => $this->t('Language selection'),
Chris@0 78 '#default_value' => $this->configuration['langcodes'],
Chris@0 79 '#options' => $langcodes_options,
Chris@0 80 '#description' => $this->t('Select languages to enforce. If none are selected, all languages will be allowed.'),
Chris@0 81 ];
Chris@0 82 }
Chris@0 83 else {
Chris@0 84 $form['langcodes'] = [
Chris@0 85 '#type' => 'value',
Chris@0 86 '#default_value' => $this->configuration['langcodes'],
Chris@0 87 ];
Chris@0 88 }
Chris@0 89 return parent::buildConfigurationForm($form, $form_state);
Chris@0 90 }
Chris@0 91
Chris@0 92 /**
Chris@0 93 * {@inheritdoc}
Chris@0 94 */
Chris@0 95 public function submitConfigurationForm(array &$form, FormStateInterface $form_state) {
Chris@0 96 $this->configuration['langcodes'] = array_filter($form_state->getValue('langcodes'));
Chris@0 97 parent::submitConfigurationForm($form, $form_state);
Chris@0 98 }
Chris@0 99
Chris@0 100 /**
Chris@0 101 * {@inheritdoc}
Chris@0 102 */
Chris@0 103 public function summary() {
Chris@0 104 $language_list = $this->languageManager->getLanguages(LanguageInterface::STATE_ALL);
Chris@0 105 $selected = $this->configuration['langcodes'];
Chris@0 106 // Reduce the language list to an array of language names.
Chris@0 107 $language_names = array_reduce($language_list, function (&$result, $item) use ($selected) {
Chris@0 108 // If the current item of the $language_list array is one of the selected
Chris@0 109 // languages, add it to the $results array.
Chris@0 110 if (!empty($selected[$item->getId()])) {
Chris@0 111 $result[$item->getId()] = $item->getName();
Chris@0 112 }
Chris@0 113 return $result;
Chris@0 114 }, []);
Chris@0 115
Chris@0 116 // If we have more than one language selected, separate them by commas.
Chris@0 117 if (count($this->configuration['langcodes']) > 1) {
Chris@0 118 $languages = implode(', ', $language_names);
Chris@0 119 }
Chris@0 120 else {
Chris@0 121 // If we have just one language just grab the only present value.
Chris@0 122 $languages = array_pop($language_names);
Chris@0 123 }
Chris@0 124 if (!empty($this->configuration['negate'])) {
Chris@0 125 return t('The language is not @languages.', ['@languages' => $languages]);
Chris@0 126 }
Chris@0 127 return t('The language is @languages.', ['@languages' => $languages]);
Chris@0 128 }
Chris@0 129
Chris@0 130 /**
Chris@0 131 * {@inheritdoc}
Chris@0 132 */
Chris@0 133 public function evaluate() {
Chris@0 134 if (empty($this->configuration['langcodes']) && !$this->isNegated()) {
Chris@0 135 return TRUE;
Chris@0 136 }
Chris@0 137
Chris@0 138 $language = $this->getContextValue('language');
Chris@0 139 // Language visibility settings.
Chris@0 140 return !empty($this->configuration['langcodes'][$language->getId()]);
Chris@0 141 }
Chris@0 142
Chris@0 143 /**
Chris@0 144 * {@inheritdoc}
Chris@0 145 */
Chris@0 146 public function defaultConfiguration() {
Chris@0 147 return ['langcodes' => []] + parent::defaultConfiguration();
Chris@0 148 }
Chris@0 149
Chris@0 150 }