languageManager = $language_manager;
}
/**
* {@inheritdoc}
*/
public static function create(ContainerInterface $container) {
return new static(
$container->get('config.factory'),
$container->get('language_manager')
);
}
/**
* {@inheritdoc}
*/
public function getFormId() {
return 'language_negotiation_configure_browser_form';
}
/**
* {@inheritdoc}
*/
protected function getEditableConfigNames() {
return ['language.mappings'];
}
/**
* {@inheritdoc}
*/
public function buildForm(array $form, FormStateInterface $form_state) {
$form = [];
// Initialize a language list to the ones available, including English.
$languages = $this->languageManager->getLanguages();
$existing_languages = [];
foreach ($languages as $langcode => $language) {
$existing_languages[$langcode] = $language->getName();
}
// If we have no languages available, present the list of predefined languages
// only. If we do have already added languages, set up two option groups with
// the list of existing and then predefined languages.
if (empty($existing_languages)) {
$language_options = $this->languageManager->getStandardLanguageListWithoutConfigured();
}
else {
$language_options = [
(string) $this->t('Existing languages') => $existing_languages,
(string) $this->t('Languages not yet added') => $this->languageManager->getStandardLanguageListWithoutConfigured(),
];
}
$form['mappings'] = [
'#type' => 'table',
'#header' => [
$this->t('Browser language code'),
$this->t('Site language'),
$this->t('Operations'),
],
'#attributes' => ['id' => 'language-negotiation-browser'],
'#empty' => $this->t('No browser language mappings available.'),
];
$mappings = $this->language_get_browser_drupal_langcode_mappings();
foreach ($mappings as $browser_langcode => $drupal_langcode) {
$form['mappings'][$browser_langcode] = [
'browser_langcode' => [
'#title' => $this->t('Browser language code'),
'#title_display' => 'invisible',
'#type' => 'textfield',
'#default_value' => $browser_langcode,
'#size' => 20,
'#required' => TRUE,
],
'drupal_langcode' => [
'#title' => $this->t('Site language'),
'#title_display' => 'invisible',
'#type' => 'select',
'#options' => $language_options,
'#default_value' => $drupal_langcode,
'#required' => TRUE,
],
];
// Operations column.
$form['mappings'][$browser_langcode]['operations'] = [
'#type' => 'operations',
'#links' => [],
];
$form['mappings'][$browser_langcode]['operations']['#links']['delete'] = [
'title' => $this->t('Delete'),
'url' => Url::fromRoute('language.negotiation_browser_delete', ['browser_langcode' => $browser_langcode]),
];
}
// Add empty row.
$form['new_mapping'] = [
'#type' => 'details',
'#title' => $this->t('Add a new mapping'),
'#tree' => TRUE,
];
$form['new_mapping']['browser_langcode'] = [
'#type' => 'textfield',
'#title' => $this->t('Browser language code'),
'#description' => $this->t('Use language codes as defined by the W3C for interoperability. Examples: "en", "en-gb" and "zh-hant".', [':w3ctags' => 'http://www.w3.org/International/articles/language-tags/']),
'#size' => 20,
];
$form['new_mapping']['drupal_langcode'] = [
'#type' => 'select',
'#title' => $this->t('Site language'),
'#options' => $language_options,
];
return parent::buildForm($form, $form_state);
}
/**
* {@inheritdoc}
*/
public function validateForm(array &$form, FormStateInterface $form_state) {
// Array to check if all browser language codes are unique.
$unique_values = [];
// Check all mappings.
if ($form_state->hasValue('mappings')) {
$mappings = $form_state->getValue('mappings');
foreach ($mappings as $key => $data) {
// Make sure browser_langcode is unique.
if (array_key_exists($data['browser_langcode'], $unique_values)) {
$form_state->setErrorByName('mappings][new_mapping][browser_langcode', $this->t('Browser language codes must be unique.'));
}
elseif (preg_match('/[^a-z\-]/', $data['browser_langcode'])) {
$form_state->setErrorByName('mappings][new_mapping][browser_langcode', $this->t('Browser language codes can only contain lowercase letters and a hyphen(-).'));
}
$unique_values[$data['browser_langcode']] = $data['drupal_langcode'];
}
}
// Check new mapping.
$data = $form_state->getValue('new_mapping');
if (!empty($data['browser_langcode'])) {
// Make sure browser_langcode is unique.
if (array_key_exists($data['browser_langcode'], $unique_values)) {
$form_state->setErrorByName('mappings][' . $key . '][browser_langcode', $this->t('Browser language codes must be unique.'));
}
elseif (preg_match('/[^a-z\-]/', $data['browser_langcode'])) {
$form_state->setErrorByName('mappings][' . $key . '][browser_langcode', $this->t('Browser language codes can only contain lowercase letters and a hyphen(-).'));
}
$unique_values[$data['browser_langcode']] = $data['drupal_langcode'];
}
$form_state->set('mappings', $unique_values);
}
/**
* {@inheritdoc}
*/
public function submitForm(array &$form, FormStateInterface $form_state) {
$mappings = $form_state->get('mappings');
if (!empty($mappings)) {
$config = $this->config('language.mappings');
$config->setData(['map' => $mappings]);
$config->save();
}
parent::submitForm($form, $form_state);
}
/**
* Retrieves the browser's langcode mapping configuration array.
*
* @return array
* The browser's langcode mapping configuration array.
*/
protected function language_get_browser_drupal_langcode_mappings() {
$config = $this->config('language.mappings');
if ($config->isNew()) {
return [];
}
return $config->get('map');
}
}