[FEATURE] allow metadata generation for images in a folder

Classes/Controller/ModuleController.php

@@ -5,12 +5,15 @@
 namespace In2code\Alternative\Controller;
 
 use In2code\Alternative\Domain\Service\AlternativeService;
+use In2code\Alternative\Utility\FileUtility;
 use Psr\Http\Message\ResponseInterface;
 use TYPO3\CMS\Backend\Routing\UriBuilder;
 use TYPO3\CMS\Core\Messaging\FlashMessage;
 use TYPO3\CMS\Core\Messaging\FlashMessageService;
 use TYPO3\CMS\Core\Resource\File;
 use TYPO3\CMS\Core\Resource\FileRepository;
+use TYPO3\CMS\Core\Resource\Folder;
+use TYPO3\CMS\Core\Resource\ResourceFactory;
 use TYPO3\CMS\Core\Type\ContextualFeedbackSeverity;
 use TYPO3\CMS\Core\Utility\GeneralUtility;
 use TYPO3\CMS\Extbase\Mvc\Controller\ActionController;
@@ -23,6 +26,7 @@ public function __construct(
         readonly protected FileRepository $fileRepository,
         readonly protected FlashMessageService $flashMessageService,
         readonly protected UriBuilder $uriBuilderCore,
+        readonly protected ResourceFactory $resourceFactory,
     ) {
     }
 
@@ -44,6 +48,13 @@ public function addMetadataAction(int $file): ResponseInterface
         }
         return $this->openFileList($file);
     }
+    public function addMetadataFromFolderAction(string $folderName): ResponseInterface
+    {
+        $folder = $this->resourceFactory->getFolderObjectFromCombinedIdentifier($folderName);
+        $this->addMetaDataToFolder($folder);
+
+        return $this->redirectToUri($this->uriBuilderCore->buildUriFromRoute('media_management', ['id' => $folder->getParentFolder()->getCombinedIdentifier()]));
+    }
 
     protected function openFileList(File $file): ResponseInterface
     {
@@ -58,4 +69,23 @@ protected function addMessage(string $message, ContextualFeedbackSeverity $sever
         $messageQueue = $this->flashMessageService->getMessageQueueByIdentifier();
         $messageQueue->addMessage($message);
     }
+
+    protected function addMetaDataToFolder(Folder $folder): void
+    {
+        $successes = 0;
+        foreach ($folder->getFiles() as $file) {
+            if (FileUtility::isImage($file)) {
+                if ($this->alternativeService->setImageMetadata($file, false)) {
+                    $successes++;
+                }
+            }
+        }
+
+        if ($successes) {
+            $key = $successes === 1 ? 'bulk_action_singular.finished' : 'bulk_action.finished';
+            $this->addMessage(LocalizationUtility::translate(
+                'LLL:EXT:alternative/Resources/Private/Language/Backend/locallang.xlf:' . $key, 'alternative', [$successes]
+            ));
+        }
+    }
 }

Classes/EventListeners/AddFileButtonListener.php

@@ -1,6 +1,6 @@
 <?php
 
-declare(strict_types=1);
+declare(strict_types = 1);
 
 namespace In2code\Alternative\EventListeners;
 
@@ -14,7 +14,9 @@
 use TYPO3\CMS\Core\Imaging\IconSize;
 use TYPO3\CMS\Core\Information\Typo3Version;
 use TYPO3\CMS\Core\Resource\File;
+use TYPO3\CMS\Core\Resource\Folder;
 use TYPO3\CMS\Core\Resource\ResourceInterface;
+use TYPO3\CMS\Core\Utility\GeneralUtility;
 use TYPO3\CMS\Extbase\Utility\LocalizationUtility;
 use TYPO3\CMS\Filelist\Event\ProcessFileListActionsEvent;
 
@@ -63,6 +65,22 @@ protected function getButton(ProcessFileListActionsEvent $event, LinkButton $but
             );
     }
 
+    protected function createFolderButton(ProcessFileListActionsEvent $event): LinkButton
+    {
+        $buttonNew = GeneralUtility::makeInstance(LinkButton::class);
+        return $buttonNew
+            ->setTitle(LocalizationUtility::translate(
+                'LLL:EXT:alternative/Resources/Private/Language/Backend/locallang.xlf:button.translate')
+            )
+            ->setIcon($this->iconFactory->getIcon('extension-alternative-icon-magic', IconSize::SMALL))
+            ->setHref(
+                (string)$this->uriBuilder->buildUriFromRoute(
+                    'alternative_Module.Module_addMetadataFromFolder',
+                    ['folderName' => $event->getResource()->getStorage()->getUid() . ':' . $event->getResource()->getIdentifier()]
+                )
+            );
+    }
+
     /**
      * Todo: Can be removed once TYPO3 13 support is dropped
      *
@@ -73,10 +91,14 @@ protected function addButtonLegacy(ProcessFileListActionsEvent $event): void
     {
         if ((new Typo3Version())->getMajorVersion() === 13) {
             $actionItems = $event->getActionItems();
-            $actionItems = $this->insertArrayIntoArray(
-                $actionItems,
-                ['metadata2' => $this->getButton($event, $actionItems['metadata'])]
-            );
+            if ($actionItems['metadata'] !== null) {
+                $actionItems = $this->insertArrayIntoArray(
+                    $actionItems,
+                    ['metadata2' => $this->getButton($event, $actionItems['metadata'])]
+                );
+            } else {
+                $actionItems['metadata'] = $this->createFolderButton($event);
+            }
             $event->setActionItems($actionItems);
         }
     }
@@ -100,10 +122,12 @@ protected function insertArrayIntoArray(array $existingArray, array $addArray, s
         return array_merge($firstPart, $addArray, $lastPart);
     }
 
-    protected function isActivated(ResourceInterface $file): bool
+    protected function isActivated(ResourceInterface $resource): bool
     {
-        return is_a($file, File::class, true)
-            && FileUtility::isImage($file)
+        return (
+                (is_a($resource, File::class, true) && FileUtility::isImage($resource))
+                || is_a($resource, Folder::class, true)
+            )
             && $this->hasAccessToModule()
             && ConfigurationUtility::getConfigurationByKey('showButtonInFileList') === '1';
     }

Configuration/Backend/Modules.php

@@ -14,6 +14,7 @@
         'controllerActions' => [
             ModuleController::class => [
                 'addMetadata',
+                'addMetadataFromFolder',
             ],
         ],
     ],

Resources/Private/Language/Backend/de.locallang.xlf

@@ -1,6 +1,7 @@
 <?xml version="1.0" encoding="utf-8" standalone="yes" ?>
 <xliff version="1.0">
-	<file source-language="en" target-language="de" datatype="plaintext" original="messages" date="2026-01-01T12:00:00Z" product-name="alternative">
+	<file source-language="en" target-language="de" datatype="plaintext" original="messages" date="2026-01-01T12:00:00Z"
+	      product-name="alternative">
 		<header/>
 		<body>
 			<trans-unit id="button.translate">
@@ -15,6 +16,14 @@
 				<source>Metadata could not be added</source>
 				<target state="translated">Metadaten konnten nicht gesetzt werden</target>
 			</trans-unit>
+			<trans-unit id="bulk_action_singular.finished">
+                <source>Metadata successfully added for %1$s file</source>
+                <target state="translated">Metadaten erfolgreich für %1$s Datei gesetzt</target>
+            </trans-unit>
+			<trans-unit id="bulk_action.finished">
+                <source>Metadata successfully added for %1$s files</source>
+                <target state="translated">Metadaten erfolgreich für %1$s Dateien gesetzt</target>
+            </trans-unit>
 		</body>
 	</file>
 </xliff>

Resources/Private/Language/Backend/locallang.xlf

@@ -12,6 +12,12 @@
 			<trans-unit id="action.notfinished">
 				<source>Metadata could not be added</source>
 			</trans-unit>
+			<trans-unit id="bulk_action_singular.finished">
+				<source>Metadata successfully added for %1$s file</source>
+			</trans-unit>
+			<trans-unit id="bulk_action.finished">
+				<source>Metadata successfully added for %1$s files</source>
+			</trans-unit>
 		</body>
 	</file>
 </xliff>