diff core/lib/Drupal/Core/StringTranslation/StringTranslationTrait.php @ 0:4c8ae668cc8c

Initial import (non-working)

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/core/lib/Drupal/Core/StringTranslation/StringTranslationTrait.php	Wed Nov 29 16:09:58 2017 +0000
@@ -0,0 +1,124 @@
+<?php
+
+namespace Drupal\Core\StringTranslation;
+
+/**
+ * Wrapper methods for \Drupal\Core\StringTranslation\TranslationInterface.
+ *
+ * Using this trait will add t() and formatPlural() methods to the class. These
+ * must be used for every translatable string, similar to how procedural code
+ * must use the global functions t() and \Drupal::translation()->formatPlural().
+ * This allows string extractor tools to find translatable strings.
+ *
+ * If the class is capable of injecting services from the container, it should
+ * inject the 'string_translation' service and assign it to
+ * $this->stringTranslation.
+ *
+ * @see \Drupal\Core\StringTranslation\TranslationInterface
+ * @see container
+ *
+ * @ingroup i18n
+ */
+trait StringTranslationTrait {
+
+  /**
+   * The string translation service.
+   *
+   * @var \Drupal\Core\StringTranslation\TranslationInterface
+   */
+  protected $stringTranslation;
+
+  /**
+   * Translates a string to the current language or to a given language.
+   *
+   * See \Drupal\Core\StringTranslation\TranslatableMarkup::__construct() for
+   * important security information and usage guidelines.
+   *
+   * In order for strings to be localized, make them available in one of the
+   * ways supported by the
+   * @link https://www.drupal.org/node/322729 Localization API @endlink. When
+   * possible, use the \Drupal\Core\StringTranslation\StringTranslationTrait
+   * $this->t(). Otherwise create a new
+   * \Drupal\Core\StringTranslation\TranslatableMarkup object.
+   *
+   * @param string $string
+   *   A string containing the English text to translate.
+   * @param array $args
+   *   (optional) An associative array of replacements to make after
+   *   translation. Based on the first character of the key, the value is
+   *   escaped and/or themed. See
+   *   \Drupal\Component\Render\FormattableMarkup::placeholderFormat() for
+   *   details.
+   * @param array $options
+   *   (optional) An associative array of additional options, with the following
+   *   elements:
+   *   - 'langcode' (defaults to the current language): A language code, to
+   *     translate to a language other than what is used to display the page.
+   *   - 'context' (defaults to the empty context): The context the source
+   *     string belongs to. See the
+   *     @link i18n Internationalization topic @endlink for more information
+   *     about string contexts.
+   *
+   * @return \Drupal\Core\StringTranslation\TranslatableMarkup
+   *   An object that, when cast to a string, returns the translated string.
+   *
+   * @see \Drupal\Component\Render\FormattableMarkup::placeholderFormat()
+   * @see \Drupal\Core\StringTranslation\TranslatableMarkup::__construct()
+   *
+   * @ingroup sanitization
+   */
+  protected function t($string, array $args = [], array $options = []) {
+    return new TranslatableMarkup($string, $args, $options, $this->getStringTranslation());
+  }
+
+  /**
+   * Formats a string containing a count of items.
+   *
+   * @see \Drupal\Core\StringTranslation\TranslationInterface::formatPlural()
+   */
+  protected function formatPlural($count, $singular, $plural, array $args = [], array $options = []) {
+    return new PluralTranslatableMarkup($count, $singular, $plural, $args, $options, $this->getStringTranslation());
+  }
+
+  /**
+   * Returns the number of plurals supported by a given language.
+   *
+   * @see \Drupal\locale\PluralFormulaInterface::getNumberOfPlurals()
+   */
+  protected function getNumberOfPlurals($langcode = NULL) {
+    if (\Drupal::hasService('locale.plural.formula')) {
+      return \Drupal::service('locale.plural.formula')->getNumberOfPlurals($langcode);
+    }
+    // We assume 2 plurals if Locale's services are not available.
+    return 2;
+  }
+
+  /**
+   * Gets the string translation service.
+   *
+   * @return \Drupal\Core\StringTranslation\TranslationInterface
+   *   The string translation service.
+   */
+  protected function getStringTranslation() {
+    if (!$this->stringTranslation) {
+      $this->stringTranslation = \Drupal::service('string_translation');
+    }
+
+    return $this->stringTranslation;
+  }
+
+  /**
+   * Sets the string translation service to use.
+   *
+   * @param \Drupal\Core\StringTranslation\TranslationInterface $translation
+   *   The string translation service.
+   *
+   * @return $this
+   */
+  public function setStringTranslation(TranslationInterface $translation) {
+    $this->stringTranslation = $translation;
+
+    return $this;
+  }
+
+}