/**
* {@inheritdoc}
*/
public function validateForm(array &$form, FormStateInterface $form_state)
{
$config = $this->config('geshifilter.settings');
// Language tags should differ from each other.
$languages = GeshiFilter::getAvailableLanguages();
$values = $form_state->getValue('language');
foreach ($languages as $language1 => $language_data1) {
if ($values[$language1]['enabled'] == FALSE) {
continue;
}
$tags1 = GeshiFilter::tagSplit($values[$language1]['tags']);
// Check that other languages do not use these tags.
foreach ($languages as $language2 => $language_data2) {
// Check these tags against the tags of other enabled languages.
if ($language1 == $language2) {
continue;
}
// Get tags for $language2.
$tags2 = GeshiFilter::tagSplit($values[$language2]['tags']);
// Get generic tags.
$generics = GeshiFilter::tagSplit($config->get('tags'));
$tags2 = array_merge($tags2, $generics);
// And now we can check tags1 against tags2.
foreach ($tags1 as $tag1) {
foreach ($tags2 as $tag2) {
if ($tag1 == $tag2) {
$name = "language[{$language2}][tags]";
$form_state->setErrorByName($name, t('The language tags should differ between languages and from the generic tags.'));
}
}
}
}
}
}
/**
* Helper function for gettings the tags.
*
* Old: _geshifilter_get_tags.
*
* @todo: recreate a cache for this function.
*/
protected function getTags()
{
$generic_code_tags = GeshiFilter::tagSplit($this->tags());
$language_tags = array();
$tag_to_lang = array();
$enabled_languages = GeshiFilter::getEnabledLanguages();
foreach ($enabled_languages as $language => $fullname) {
$lang_tags = GeshiFilter::tagSplit($this->languageTags($language));
foreach ($lang_tags as $lang_tag) {
$language_tags[] = $lang_tag;
$tag_to_lang[$lang_tag] = $language;
}
}
return array($generic_code_tags, $language_tags, $tag_to_lang);
}
