Version 1

[yaffs-website] / web / core / modules / language / src / Form / LanguageAddForm.php

diff --git a/web/core/modules/language/src/Form/LanguageAddForm.php b/web/core/modules/language/src/Form/LanguageAddForm.php
new file mode 100644 (file)
index 0000000..5b9f15c
--- /dev/null
+++ b/web/core/modules/language/src/Form/LanguageAddForm.php
@@ -0,0 +1,165 @@
+<?php
+
+namespace Drupal\language\Form;
+
+use Drupal\Core\Entity\EntityInterface;
+use Drupal\Core\Form\FormStateInterface;
+use Drupal\Core\Language\LanguageManager;
+use Drupal\language\Entity\ConfigurableLanguage;
+
+/**
+ * Controller for language addition forms.
+ */
+class LanguageAddForm extends LanguageFormBase {
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getFormId() {
+    // @todo Remove in favour of base method.
+    return 'language_admin_add_form';
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function form(array $form, FormStateInterface $form_state) {
+    $form['#title'] = $this->t('Add language');
+
+    $predefined_languages = $this->languageManager->getStandardLanguageListWithoutConfigured();
+
+    $predefined_languages['custom'] = $this->t('Custom language...');
+    $predefined_default = $form_state->getValue('predefined_langcode', key($predefined_languages));
+    $form['predefined_langcode'] = [
+      '#type' => 'select',
+      '#title' => $this->t('Language name'),
+      '#default_value' => $predefined_default,
+      '#options' => $predefined_languages,
+    ];
+    $form['predefined_submit'] = [
+      '#type' => 'submit',
+      '#value' => $this->t('Add language'),
+      '#name' => 'add_language',
+      '#limit_validation_errors' => [['predefined_langcode'], ['predefined_submit']],
+      '#states' => [
+        'invisible' => [
+          'select#edit-predefined-langcode' => ['value' => 'custom'],
+        ],
+      ],
+      '#validate' => ['::validatePredefined'],
+      '#submit' => ['::submitForm', '::save'],
+      '#button_type' => 'primary',
+    ];
+
+    $custom_language_states_conditions = [
+      'select#edit-predefined-langcode' => ['value' => 'custom'],
+    ];
+    $form['custom_language'] = [
+      '#type' => 'container',
+      '#states' => [
+        'visible' => $custom_language_states_conditions,
+      ],
+    ];
+    $this->commonForm($form['custom_language']);
+    $form['custom_language']['langcode']['#states'] = [
+      'required' => $custom_language_states_conditions,
+    ];
+    $form['custom_language']['label']['#states'] = [
+      'required' => $custom_language_states_conditions,
+    ];
+    $form['custom_language']['submit'] = [
+      '#type' => 'submit',
+      '#value' => $this->t('Add custom language'),
+      '#name' => 'add_custom_language',
+      '#validate' => ['::validateCustom'],
+      '#submit' => ['::submitForm', '::save'],
+    ];
+
+    return $form;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function save(array $form, FormStateInterface $form_state) {
+    parent::save($form, $form_state);
+
+    $t_args = ['%language' => $this->entity->label(), '%langcode' => $this->entity->id()];
+    $this->logger('language')->notice('The %language (%langcode) language has been created.', $t_args);
+    drupal_set_message($this->t('The language %language has been created and can now be used.', $t_args));
+
+    if ($this->moduleHandler->moduleExists('block')) {
+      // Tell the user they have the option to add a language switcher block
+      // to their theme so they can switch between the languages.
+      drupal_set_message($this->t('Use one of the language switcher blocks to allow site visitors to switch between languages. You can enable these blocks on the <a href=":block-admin">block administration page</a>.', [':block-admin' => $this->url('block.admin_display')]));
+    }
+    $form_state->setRedirectUrl($this->entity->urlInfo('collection'));
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function actions(array $form, FormStateInterface $form_state) {
+    // No actions needed.
+    return [];
+  }
+
+  /**
+   * Validates the language addition form on custom language button.
+   */
+  public function validateCustom(array $form, FormStateInterface $form_state) {
+    if ($form_state->getValue('predefined_langcode') == 'custom') {
+      $langcode = $form_state->getValue('langcode');
+      // Reuse the editing form validation routine if we add a custom language.
+      $this->validateCommon($form['custom_language'], $form_state);
+
+      if ($language = $this->languageManager->getLanguage($langcode)) {
+        $form_state->setErrorByName('langcode', $this->t('The language %language (%langcode) already exists.', ['%language' => $language->getName(), '%langcode' => $langcode]));
+      }
+    }
+    else {
+      $form_state->setErrorByName('predefined_langcode', $this->t('Use the <em>Add language</em> button to save a predefined language.'));
+    }
+  }
+
+  /**
+   * Element specific validator for the Add language button.
+   */
+  public function validatePredefined($form, FormStateInterface $form_state) {
+    $langcode = $form_state->getValue('predefined_langcode');
+    if ($langcode == 'custom') {
+      $form_state->setErrorByName('predefined_langcode', $this->t('Fill in the language details and save the language with <em>Add custom language</em>.'));
+    }
+    else {
+      if ($language = $this->languageManager->getLanguage($langcode)) {
+        $form_state->setErrorByName('predefined_langcode', $this->t('The language %language (%langcode) already exists.', ['%language' => $language->getName(), '%langcode' => $langcode]));
+      }
+    }
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  protected function copyFormValuesToEntity(EntityInterface $entity, array $form, FormStateInterface $form_state) {
+    $langcode = $form_state->getValue('predefined_langcode');
+    if ($langcode == 'custom') {
+      $langcode = $form_state->getValue('langcode');
+      $label = $form_state->getValue('label');
+      $direction = $form_state->getValue('direction');
+    }
+    else {
+      $standard_languages = LanguageManager::getStandardLanguageList();
+      $label = $standard_languages[$langcode][0];
+      $direction = isset($standard_languages[$langcode][2]) ? $standard_languages[$langcode][2] : ConfigurableLanguage::DIRECTION_LTR;
+    }
+    $entity->set('id', $langcode);
+    $entity->set('label', $label);
+    $entity->set('direction', $direction);
+    // There is no weight on the edit form. Fetch all configurable languages
+    // ordered by weight and set the new language to be placed after them.
+    $languages = \Drupal::languageManager()->getLanguages(ConfigurableLanguage::STATE_CONFIGURABLE);
+    $last_language = end($languages);
+    $entity->setWeight($last_language->getWeight() + 1);
+  }
+
+}