function FeedViewBuilder::buildComponents

Overrides EntityViewBuilder::buildComponents

File

core/modules/aggregator/src/FeedViewBuilder.php, line 77

Class

FeedViewBuilder

View builder handler for aggregator feeds.

Namespace

Code

public function buildComponents(array &$build, array $entities, array $displays, $view_mode) {
    parent::buildComponents($build, $entities, $displays, $view_mode);
    foreach ($entities as $id => $entity) {
        $bundle = $entity->bundle();
        $display = $displays[$bundle];
        if ($display->getComponent('items')) {
            // When in summary view mode, respect the list_max setting.
            $limit = $view_mode == 'summary' ? $this->config
                ->get('source.list_max') : 20;
            // Retrieve the items attached to this feed.
            $items = $this->entityTypeManager
                ->getStorage('aggregator_item')
                ->loadByFeed($entity->id(), $limit);
            $build[$id]['items'] = $this->entityTypeManager
                ->getViewBuilder('aggregator_item')
                ->viewMultiple($items, $view_mode, $entity->language()
                ->getId());
            if ($view_mode == 'full') {
                // Also add the pager.
                $build[$id]['pager'] = [
                    '#type' => 'pager',
                ];
            }
        }
        // By default, the description and image fields are exposed as
        // pseudo-fields rendered in this function. However they can optionally
        // be rendered directly using a field formatter. Skip rendering here if a
        // field formatter type is set.
        $component = $display->getComponent('description');
        if ($component && !isset($component['type'])) {
            $build[$id]['description'] = [
                '#markup' => $entity->getDescription(),
                '#allowed_tags' => _aggregator_allowed_tags(),
                '#prefix' => '<div class="feed-description">',
                '#suffix' => '</div>',
            ];
        }
        $component = $display->getComponent('image');
        if ($component && !isset($component['type'])) {
            $image_link = [];
            // Render the image as link if it is available.
            $image = $entity->getImage();
            $label = $entity->label();
            $link_href = $entity->getWebsiteUrl();
            if ($image && $label && $link_href) {
                $link_title = [
                    '#theme' => 'image',
                    '#uri' => $image,
                    '#alt' => $label,
                ];
                $image_link = [
                    '#type' => 'link',
                    '#title' => $link_title,
                    '#url' => Url::fromUri($link_href),
                    '#options' => [
                        'attributes' => [
                            'class' => [
                                'feed-image',
                            ],
                        ],
                    ],
                ];
            }
            $build[$id]['image'] = $image_link;
        }
        if ($display->getComponent('feed_icon')) {
            $build[$id]['feed_icon'] = [
                '#theme' => 'feed_icon',
                '#url' => $entity->getUrl(),
                '#title' => t('@title feed', [
                    '@title' => $entity->label(),
                ]),
            ];
        }
        if ($display->getComponent('more_link')) {
            $title_stripped = strip_tags($entity->label());
            $build[$id]['more_link'] = [
                '#type' => 'link',
                '#title' => t('More<span class="visually-hidden"> posts about @title</span>', [
                    '@title' => $title_stripped,
                ]),
                '#url' => Url::fromRoute('entity.aggregator_feed.canonical', [
                    'aggregator_feed' => $entity->id(),
                ]),
                '#options' => [
                    'attributes' => [
                        'title' => $title_stripped,
                    ],
                ],
            ];
        }
    }
}