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<?php
namespace Drupal\locale\Form;
use Drupal\Component\Gettext\PoStreamWriter;
use Drupal\Core\File\FileSystemInterface;
use Drupal\Core\Form\FormBase;
use Drupal\Core\Form\FormStateInterface;
use Drupal\Core\Language\LanguageInterface;
use Drupal\Core\Language\LanguageManagerInterface;
use Drupal\locale\PoDatabaseReader;
use Symfony\Component\DependencyInjection\ContainerInterface;
use Symfony\Component\HttpFoundation\BinaryFileResponse;
/**
* Form for the Gettext translation files export form.
*/
class ExportForm extends FormBase {
/**
* The language manager.
*
* @var \Drupal\Core\Language\LanguageManagerInterface
*/
protected $languageManager;
/**
* The file system service.
*
* @var \Drupal\Core\File\FileSystemInterface
*/
protected $fileSystem;
/**
* Constructs a new ExportForm.
*
* @param \Drupal\Core\Language\LanguageManagerInterface $language_manager
* The language manager.
* @param \Drupal\Core\File\FileSystemInterface $file_system
* The file system service.
*/
public function __construct(LanguageManagerInterface $language_manager, FileSystemInterface $file_system) {
$this->languageManager = $language_manager;
$this->fileSystem = $file_system;
}
/**
* {@inheritdoc}
*/
public static function create(ContainerInterface $container) {
return new static(
$container->get('language_manager'),
$container->get('file_system')
);
}
/**
* {@inheritdoc}
*/
public function getFormId() {
return 'locale_translate_export_form';
}
/**
* {@inheritdoc}
*/
public function buildForm(array $form, FormStateInterface $form_state) {
$languages = $this->languageManager->getLanguages();
$language_options = [];
foreach ($languages as $langcode => $language) {
if (locale_is_translatable($langcode)) {
$language_options[$langcode] = $language->getName();
}
}
$language_default = $this->languageManager->getDefaultLanguage();
if (empty($language_options)) {
$form['langcode'] = [
'#type' => 'value',
'#value' => LanguageInterface::LANGCODE_SYSTEM,
];
$form['langcode_text'] = [
'#type' => 'item',
'#title' => $this->t('Language'),
'#markup' => $this->t('No language available. The export will only contain source strings.'),
];
}
else {
$form['langcode'] = [
'#type' => 'select',
'#title' => $this->t('Language'),
'#options' => $language_options,
'#default_value' => $language_default->getId(),
'#empty_option' => $this->t('Source text only, no translations'),
'#empty_value' => LanguageInterface::LANGCODE_SYSTEM,
];
$form['content_options'] = [
'#type' => 'details',
'#title' => $this->t('Export options'),
'#tree' => TRUE,
'#states' => [
'invisible' => [
':input[name="langcode"]' => ['value' => LanguageInterface::LANGCODE_SYSTEM],
],
],
];
$form['content_options']['not_customized'] = [
'#type' => 'checkbox',
'#title' => $this->t('Include non-customized translations'),
'#default_value' => TRUE,
];
$form['content_options']['customized'] = [
'#type' => 'checkbox',
'#title' => $this->t('Include customized translations'),
'#default_value' => TRUE,
];
$form['content_options']['not_translated'] = [
'#type' => 'checkbox',
'#title' => $this->t('Include untranslated text'),
'#default_value' => TRUE,
];
}
$form['actions'] = [
'#type' => 'actions',
];
$form['actions']['submit'] = [
'#type' => 'submit',
'#value' => $this->t('Export'),
];
return $form;
}
/**
* {@inheritdoc}
*/
public function submitForm(array &$form, FormStateInterface $form_state) {
// If template is required, language code is not given.
if ($form_state->getValue('langcode') != LanguageInterface::LANGCODE_SYSTEM) {
$language = $this->languageManager->getLanguage($form_state->getValue('langcode'));
}
else {
$language = NULL;
}
$content_options = $form_state->getValue('content_options', []);
$reader = new PoDatabaseReader();
$language_name = '';
if ($language != NULL) {
$reader->setLangcode($language->getId());
$reader->setOptions($content_options);
$languages = $this->languageManager->getLanguages();
$language_name = isset($languages[$language->getId()]) ? $languages[$language->getId()]->getName() : '';
$filename = $language->getId() . '.po';
}
else {
// Template required.
$filename = 'drupal.pot';
}
$item = $reader->readItem();
if (!empty($item)) {
$uri = $this->fileSystem->tempnam('temporary://', 'po_');
$header = $reader->getHeader();
$header->setProjectName($this->config('system.site')->get('name'));
$header->setLanguageName($language_name);
$writer = new PoStreamWriter();
$writer->setUri($uri);
$writer->setHeader($header);
$writer->open();
$writer->writeItem($item);
$writer->writeItems($reader);
$writer->close();
$response = new BinaryFileResponse($uri);
$response->setContentDisposition('attachment', $filename);
$form_state->setResponse($response);
}
else {
drupal_set_message($this->t('Nothing to export.'));
}
}
}