nextcloud / server

lib/private/Blurhash/Listener/GenerateBlurhashMetadata.php

Indentation +89 added lines, -89 removed lines

@@ -28,93 +28,93 @@
  * @template-implements IEventListener<AMetadataEvent>
  */
 class GenerateBlurhashMetadata implements IEventListener {
-	private const COMPONENTS_X = 4;
-	private const COMPONENTS_Y = 3;
-
-	public function __construct(
-		private IPreview $preview,
-	) {
-	}
-
-	/**
-	 * @throws NotPermittedException
-	 * @throws GenericFileException
-	 * @throws LockedException
-	 */
-	public function handle(Event $event): void {
-		if (!($event instanceof MetadataLiveEvent)
-			&& !($event instanceof MetadataBackgroundEvent)) {
-			return;
-		}
-
-		$file = $event->getNode();
-		if (!($file instanceof File)) {
-			return;
-		}
-
-		$currentEtag = $file->getEtag();
-		$metadata = $event->getMetadata();
-		if ($metadata->getEtag('blurhash') === $currentEtag) {
-			return;
-		}
-
-		// too heavy to run on the live thread, request a rerun as a background job
-		if ($event instanceof MetadataLiveEvent) {
-			$event->requestBackgroundJob();
-			return;
-		}
-
-		if (!str_starts_with($file->getMimetype(), 'image/')) {
-			return;
-		}
-
-		// Preview are disabled, so we skip generating the blurhash.
-		if (!$this->preview->isAvailable($file)) {
-			return;
-		}
-
-		$preview = $this->preview->getPreview($file, 64, 64, cacheResult: false);
-		$image = @imagecreatefromstring($preview->getContent());
-
-		if (!$image) {
-			return;
-		}
-
-		$metadata->setString('blurhash', $this->generateBlurHash($image))
-			->setEtag('blurhash', $currentEtag);
-	}
-
-	/**
-	 * @param GdImage $image
-	 *
-	 * @return string
-	 */
-	public function generateBlurHash(GdImage $image): string {
-		$width = imagesx($image);
-		$height = imagesy($image);
-
-		$pixels = [];
-		for ($y = 0; $y < $height; ++$y) {
-			$row = [];
-			for ($x = 0; $x < $width; ++$x) {
-				$index = imagecolorat($image, $x, $y);
-				$colors = imagecolorsforindex($image, $index);
-				$row[] = [$colors['red'], $colors['green'], $colors['blue']];
-			}
-
-			$pixels[] = $row;
-		}
-
-		return Blurhash::encode($pixels, self::COMPONENTS_X, self::COMPONENTS_Y);
-	}
-
-	/**
-	 * @param IEventDispatcher $eventDispatcher
-	 *
-	 * @return void
-	 */
-	public static function loadListeners(IEventDispatcher $eventDispatcher): void {
-		$eventDispatcher->addServiceListener(MetadataLiveEvent::class, self::class);
-		$eventDispatcher->addServiceListener(MetadataBackgroundEvent::class, self::class);
-	}
+    private const COMPONENTS_X = 4;
+    private const COMPONENTS_Y = 3;
+
+    public function __construct(
+        private IPreview $preview,
+    ) {
+    }
+
+    /**
+     * @throws NotPermittedException
+     * @throws GenericFileException
+     * @throws LockedException
+     */
+    public function handle(Event $event): void {
+        if (!($event instanceof MetadataLiveEvent)
+            && !($event instanceof MetadataBackgroundEvent)) {
+            return;
+        }
+
+        $file = $event->getNode();
+        if (!($file instanceof File)) {
+            return;
+        }
+
+        $currentEtag = $file->getEtag();
+        $metadata = $event->getMetadata();
+        if ($metadata->getEtag('blurhash') === $currentEtag) {
+            return;
+        }
+
+        // too heavy to run on the live thread, request a rerun as a background job
+        if ($event instanceof MetadataLiveEvent) {
+            $event->requestBackgroundJob();
+            return;
+        }
+
+        if (!str_starts_with($file->getMimetype(), 'image/')) {
+            return;
+        }
+
+        // Preview are disabled, so we skip generating the blurhash.
+        if (!$this->preview->isAvailable($file)) {
+            return;
+        }
+
+        $preview = $this->preview->getPreview($file, 64, 64, cacheResult: false);
+        $image = @imagecreatefromstring($preview->getContent());
+
+        if (!$image) {
+            return;
+        }
+
+        $metadata->setString('blurhash', $this->generateBlurHash($image))
+            ->setEtag('blurhash', $currentEtag);
+    }
+
+    /**
+     * @param GdImage $image
+     *
+     * @return string
+     */
+    public function generateBlurHash(GdImage $image): string {
+        $width = imagesx($image);
+        $height = imagesy($image);
+
+        $pixels = [];
+        for ($y = 0; $y < $height; ++$y) {
+            $row = [];
+            for ($x = 0; $x < $width; ++$x) {
+                $index = imagecolorat($image, $x, $y);
+                $colors = imagecolorsforindex($image, $index);
+                $row[] = [$colors['red'], $colors['green'], $colors['blue']];
+            }
+
+            $pixels[] = $row;
+        }
+
+        return Blurhash::encode($pixels, self::COMPONENTS_X, self::COMPONENTS_Y);
+    }
+
+    /**
+     * @param IEventDispatcher $eventDispatcher
+     *
+     * @return void
+     */
+    public static function loadListeners(IEventDispatcher $eventDispatcher): void {
+        $eventDispatcher->addServiceListener(MetadataLiveEvent::class, self::class);
+        $eventDispatcher->addServiceListener(MetadataBackgroundEvent::class, self::class);
+    }
 }