--- /dev/null
+<?php
+
+namespace Drupal\search\Entity;
+
+use Drupal\Core\Config\Entity\ConfigEntityBase;
+use Drupal\Core\Config\Entity\ConfigEntityInterface;
+use Drupal\Core\Entity\EntityStorageInterface;
+use Drupal\Core\Entity\EntityWithPluginCollectionInterface;
+use Drupal\search\Plugin\SearchIndexingInterface;
+use Drupal\search\Plugin\SearchPluginCollection;
+use Drupal\search\SearchPageInterface;
+
+/**
+ * Defines a configured search page.
+ *
+ * @ConfigEntityType(
+ * id = "search_page",
+ * label = @Translation("Search page"),
+ * handlers = {
+ * "access" = "Drupal\search\SearchPageAccessControlHandler",
+ * "list_builder" = "Drupal\search\SearchPageListBuilder",
+ * "form" = {
+ * "add" = "Drupal\search\Form\SearchPageAddForm",
+ * "edit" = "Drupal\search\Form\SearchPageEditForm",
+ * "search" = "Drupal\search\Form\SearchPageForm",
+ * "delete" = "Drupal\Core\Entity\EntityDeleteForm"
+ * }
+ * },
+ * admin_permission = "administer search",
+ * links = {
+ * "edit-form" = "/admin/config/search/pages/manage/{search_page}",
+ * "delete-form" = "/admin/config/search/pages/manage/{search_page}/delete",
+ * "enable" = "/admin/config/search/pages/manage/{search_page}/enable",
+ * "disable" = "/admin/config/search/pages/manage/{search_page}/disable",
+ * "set-default" = "/admin/config/search/pages/manage/{search_page}/set-default",
+ * "collection" = "/admin/config/search/pages",
+ * },
+ * config_prefix = "page",
+ * entity_keys = {
+ * "id" = "id",
+ * "label" = "label",
+ * "weight" = "weight",
+ * "status" = "status"
+ * },
+ * config_export = {
+ * "id",
+ * "label",
+ * "path",
+ * "weight",
+ * "plugin",
+ * "configuration",
+ * }
+ * )
+ */
+class SearchPage extends ConfigEntityBase implements SearchPageInterface, EntityWithPluginCollectionInterface {
+
+ /**
+ * The name (plugin ID) of the search page entity.
+ *
+ * @var string
+ */
+ protected $id;
+
+ /**
+ * The label of the search page entity.
+ *
+ * @var string
+ */
+ protected $label;
+
+ /**
+ * The configuration of the search page entity.
+ *
+ * @var array
+ */
+ protected $configuration = [];
+
+ /**
+ * The search plugin ID.
+ *
+ * @var string
+ */
+ protected $plugin;
+
+ /**
+ * The path this search page will appear upon.
+ *
+ * This value is appended to 'search/' when building the path.
+ *
+ * @var string
+ */
+ protected $path;
+
+ /**
+ * The weight of the search page.
+ *
+ * @var int
+ */
+ protected $weight;
+
+ /**
+ * The plugin collection that stores search plugins.
+ *
+ * @var \Drupal\search\Plugin\SearchPluginCollection
+ */
+ protected $pluginCollection;
+
+ /**
+ * {@inheritdoc}
+ */
+ public function getPlugin() {
+ return $this->getPluginCollection()->get($this->plugin);
+ }
+
+ /**
+ * Encapsulates the creation of the search page's LazyPluginCollection.
+ *
+ * @return \Drupal\Component\Plugin\LazyPluginCollection
+ * The search page's plugin collection.
+ */
+ protected function getPluginCollection() {
+ if (!$this->pluginCollection) {
+ $this->pluginCollection = new SearchPluginCollection($this->searchPluginManager(), $this->plugin, $this->configuration, $this->id());
+ }
+ return $this->pluginCollection;
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function getPluginCollections() {
+ return ['configuration' => $this->getPluginCollection()];
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function setPlugin($plugin_id) {
+ $this->plugin = $plugin_id;
+ $this->getPluginCollection()->addInstanceID($plugin_id);
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function isIndexable() {
+ return $this->status() && $this->getPlugin() instanceof SearchIndexingInterface;
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function isDefaultSearch() {
+ return $this->searchPageRepository()->getDefaultSearchPage() == $this->id();
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function getPath() {
+ return $this->path;
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function getWeight() {
+ return $this->weight;
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function postCreate(EntityStorageInterface $storage) {
+ parent::postCreate($storage);
+
+ // @todo Use self::applyDefaultValue() once
+ // https://www.drupal.org/node/2004756 is in.
+ if (!isset($this->weight)) {
+ $this->weight = $this->isDefaultSearch() ? -10 : 0;
+ }
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function postSave(EntityStorageInterface $storage, $update = TRUE) {
+ parent::postSave($storage, $update);
+ $this->routeBuilder()->setRebuildNeeded();
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public static function postDelete(EntityStorageInterface $storage, array $entities) {
+ parent::postDelete($storage, $entities);
+
+ $search_page_repository = \Drupal::service('search.search_page_repository');
+ if (!$search_page_repository->isSearchActive()) {
+ $search_page_repository->clearDefaultSearchPage();
+ }
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public static function sort(ConfigEntityInterface $a, ConfigEntityInterface $b) {
+ /** @var $a \Drupal\search\SearchPageInterface */
+ /** @var $b \Drupal\search\SearchPageInterface */
+ $a_status = (int) $a->status();
+ $b_status = (int) $b->status();
+ if ($a_status != $b_status) {
+ return ($a_status > $b_status) ? -1 : 1;
+ }
+ return parent::sort($a, $b);
+ }
+
+ /**
+ * Wraps the route builder.
+ *
+ * @return \Drupal\Core\Routing\RouteBuilderInterface
+ * An object for state storage.
+ */
+ protected function routeBuilder() {
+ return \Drupal::service('router.builder');
+ }
+
+ /**
+ * Wraps the config factory.
+ *
+ * @return \Drupal\Core\Config\ConfigFactoryInterface
+ * A config factory object.
+ */
+ protected function configFactory() {
+ return \Drupal::service('config.factory');
+ }
+
+ /**
+ * Wraps the search page repository.
+ *
+ * @return \Drupal\search\SearchPageRepositoryInterface
+ * A search page repository object.
+ */
+ protected function searchPageRepository() {
+ return \Drupal::service('search.search_page_repository');
+ }
+
+ /**
+ * Wraps the search plugin manager.
+ *
+ * @return \Drupal\Component\Plugin\PluginManagerInterface
+ * A search plugin manager object.
+ */
+ protected function searchPluginManager() {
+ return \Drupal::service('plugin.manager.search');
+ }
+
+}