extend the reference API for the new link picker

- add 2 interfaces for discoverable and searchable reference providers
- new OCS route to get info on discoverable/searchable reference providers
- new abstract ADiscoverableReferenceProvider that only implements jsonSerialize
- listen to RenderReferenceEvent to inject provider list with initial state

Signed-off-by: Julien Veyssier <julien-nc@posteo.net>

1 files changed, 14 insertions, 0 deletions

diff --git a/core/Controller/ReferenceApiController.php b/core/Controller/ReferenceApiController.php
index 266532113d8..098940187a8 100644
--- a/core/Controller/ReferenceApiController.php
+++ b/core/Controller/ReferenceApiController.php
@@ -25,6 +25,7 @@ declare(strict_types=1);
 namespace OC\Core\Controller;
 
 use OCP\AppFramework\Http\DataResponse;
+use OCP\Collaboration\Reference\IDiscoverableReferenceProvider;
 use OCP\Collaboration\Reference\IReferenceManager;
 use OCP\IRequest;
 
@@ -88,4 +89,17 @@ class ReferenceApiController extends \OCP\AppFramework\OCSController {
 			'references' => array_filter($result)
 		]);
 	}
+
+	/**
+	 * @NoAdminRequired
+	 *
+	 * @return DataResponse
+	 */
+	public function getProvidersInfo(): DataResponse {
+		$providers = $this->referenceManager->getDiscoverableProviders();
+		$jsonProviders = array_map(static function (IDiscoverableReferenceProvider $provider) {
+			return $provider->jsonSerialize();
+		}, $providers);
+		return new DataResponse($jsonProviders);
+	}
 }