theme->getPendingUpdates() as $version => $update) { $row = []; $row[] = $update->getSchema(); $row[] = new FormattableMarkup('@title

@description

', [ '@title' => $update->getLabel(), '@description' => $update->getDescription(), ]); $row[] = $update->getTheme()->getTitle(); $updates[] = [ 'class' => [$update->getSeverity() ?: 'default'], 'data' => $row, ]; } $form['update'] = [ '#type' => 'details', '#title' => $this->t('Theme Updates'), '#panel_type' => !!$updates ? 'primary' : 'default', '#open' => !!$updates, '#weight' => -20, ]; $form['update']['table'] = [ '#type' => 'table', '#header' => [t('Schema'), t('Description'), t('Provider')], '#empty' => t('There are currently no pending updates for this theme.'), '#rows' => $updates, ]; if ($updates) { $form['update']['actions'] = ['#type' => 'actions']; $form['update']['actions']['update'] = [ '#type' => 'submit', '#value' => t('Update theme'), '#icon' => Bootstrap::glyphicon('open'), // @todo Setting a class like this is undesirable, create a suggestion. '#attributes' => [ 'class' => ['btn-primary'], ], '#submit' => [[get_class($this), 'updateTheme']], ]; } } /** * Callback for updating a theme. * * @param array $form * Nested array of form elements that comprise the form. * @param \Drupal\Core\Form\FormStateInterface $form_state * The current state of the form. */ public static function updateTheme(array $form, FormStateInterface $form_state) { if ($theme = SystemThemeSettings::getTheme($form, $form_state)) { // Due to the fact that the batch API stores it's arguments in DB storage, // theme based objects cannot be passed as an operation argument here. // During _batch_page(), the DB item will attempt to restore the arguments // using unserialize() and the autoload fix include added below may not // yet have been invoked to register the theme namespaces. So instead, // we capture the relevant information needed to reconstruct these objects // in the batch processing callback. $theme_name = $theme->getName(); // Create an operation for each update. $operations = []; foreach ($theme->getPendingUpdates() as $update) { $operations[] = [[__CLASS__, 'batchProcessUpdate'], [$theme_name, $update->getProvider() . ':' . $update->getSchema()]]; } if ($operations) { $variables = ['@theme_title' => $theme->getTitle()]; batch_set([ 'operations' => $operations, 'finished' => [__CLASS__, 'batchFinished'], 'title' => t('Updating @theme_title', $variables), 'init_message' => \Drupal::translation()->formatPlural(count($operations), 'Initializing 1 theme update for @theme_title...', 'Initializing @count theme updates for @theme_title...', $variables), 'progress_message' => t('Processing update @current of @total...', $variables), 'error_message' => t('An error was encountered while attempting to update the @theme_title theme.', $variables), 'file' => Bootstrap::autoloadFixInclude(), ]); } } } /** * Processes an update in a batch operation. * * @param string $theme_name * The machine name of the theme this update is being applied to. * @param string $update_id * The combined identifier of the update being applied, e.g. * provider:schema. * @param array $context * The batch context. */ public static function batchProcessUpdate($theme_name, $update_id, array &$context) { // Reconstruct the theme object this update is being applied to. $theme = Bootstrap::getTheme($theme_name); // Reconstruct the update plugin that is being applied. list($provider, $plugin_id) = explode(':', $update_id); $provider = Bootstrap::getTheme($provider); /** @type \Drupal\bootstrap\Plugin\Update\UpdateInterface $update */ $update = $provider->getUpdateManager()->createInstance($plugin_id, ['theme' => $provider]); // Initialize results with theme name and installed schemas. if (!isset($context['results']['theme_name'])) { $context['results']['theme_name'] = $theme_name; } if (!isset($context['results']['schemas'])) { $context['results']['schemas'] = $theme->getSetting('schemas', []); } $schemas = &$context['results']['schemas']; $variables = [ '@theme' => $update->getTheme()->getName(), '@schema' => $update->getSchema(), '@label' => $update->getLabel(), ]; // Perform the update. try { // Attempt to perform the update. if ($update->update($theme, $context) === FALSE) { throw new \Exception(t('Update failed')); } // Store the results. $schemas[$update->getTheme()->getName()] = $update->getSchema(); $context['results']['success'][] = t('[@theme][@schema] @label', $variables); } // Capture any errors. catch (\Exception $e) { $variables['@message'] = $e->getMessage(); $context['results']['errors'][] = t('[@theme][@schema] @label - @message', $variables); } } /** * Batch 'finished' callback * * @param bool $success * A boolean indicating whether the batch has completed successfully. * @param array $results * The value(s) set in $context['results'] in * \Drupal\bootstrap\Plugin\Setting\Update::batchProcess(). * @param $operations * If $success is FALSE, contains the operations that remained unprocessed. */ public static function batchFinished($success, $results, $operations) { /** @type \Drupal\bootstrap\Theme $theme */ // Reconstruct the theme object this update is being applied to. $theme = Bootstrap::getTheme($results['theme_name']); // Save the current state of the installed schemas. $theme->setSetting('schemas', $results['schemas']); // Show successful updates. if (!empty($results['success'])) { $list = Element::createStandalone([ '#theme' => 'item_list__theme_update', '#items' => $results['success'], '#context' => ['type' => 'success'], ]); drupal_set_message(new FormattableMarkup('@message' . $list->renderPlain(), [ '@message' => t('Successfully completed the following theme updates:'), ])); } // Show failed errors. if (!empty($results['errors'])) { $list = Element::createStandalone([ '#theme' => 'item_list__theme_update', '#items' => $results['errors'], '#context' => ['type' => 'errors'], ]); drupal_set_message(new FormattableMarkup('@message' . $list->renderPlain(), [ '@message' => t('The following theme updates could not be completed:'), ]), 'error'); } } }