function Ckeditor5Hooks::jsAlter

Implements hook_js_alter().

File

core/modules/ckeditor5/src/Hook/Ckeditor5Hooks.php, line 303

Class

Ckeditor5Hooks

Hook implementations for ckeditor5.

Namespace

Code

public function jsAlter(&$javascript, AttachedAssetsInterface $assets, LanguageInterface $language) : void {
    // This file means CKEditor 5 translations are in use on the page.
    // @see locale_js_alter()
    $placeholder_file = 'core/assets/vendor/ckeditor5/translation.js';
    // This file is used to get a weight that will make it possible to aggregate
    // all translation files in a single aggregate.
    $ckeditor_dll_file = 'core/assets/vendor/ckeditor5/ckeditor5-dll/ckeditor5-dll.js';
    if (isset($javascript[$placeholder_file])) {
        // Use the placeholder file weight to set all the translations files weights
        // so they can be aggregated together as expected.
        $default_weight = $javascript[$placeholder_file]['weight'];
        if (isset($javascript[$ckeditor_dll_file])) {
            $default_weight = $javascript[$ckeditor_dll_file]['weight'];
        }
        // The placeholder file is not a real file, remove it from the list.
        unset($javascript[$placeholder_file]);
        // When the locale module isn't installed there are no translations.
        if (!\Drupal::moduleHandler()->moduleExists('locale')) {
            return;
        }
        $ckeditor5_language = _ckeditor5_get_langcode_mapping($language->getId());
        // Remove all CKEditor 5 translations files that are not in the current
        // language.
        foreach ($javascript as $index => &$item) {
            // This is not a CKEditor 5 translation file, skip it.
            if (empty($item['ckeditor5_langcode'])) {
                continue;
            }
            // This file is the correct translation for this page.
            if ($item['ckeditor5_langcode'] === $ckeditor5_language) {
                // Set the weight for the translation file to be able to have the
                // translation files aggregated.
                $item['weight'] = $default_weight;
            }
            else {
                // Remove files that don't match the language requested.
                unset($javascript[$index]);
            }
        }
    }
}