From 67561ff518160c38f93d408426e67df5ae2667b1 Mon Sep 17 00:00:00 2001
From: Alan Stanley <alanjarlathstanley@gmail.com>
Date: Mon, 4 Dec 2023 09:45:39 -0400
Subject: [PATCH] Change to Boolean logic (#999)

---
 modules/islandora_iiif/src/Plugin/views/style/IIIFManifest.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/modules/islandora_iiif/src/Plugin/views/style/IIIFManifest.php b/modules/islandora_iiif/src/Plugin/views/style/IIIFManifest.php
index 804153abf..4360e2c2e 100644
--- a/modules/islandora_iiif/src/Plugin/views/style/IIIFManifest.php
+++ b/modules/islandora_iiif/src/Plugin/views/style/IIIFManifest.php
@@ -343,7 +343,7 @@ protected function getCanvasDimensions(string $iiif_url, FieldItemInterface $ima
 
         // If this is a TIFF AND we don't know the width/height
         // see if we can get the image size via PHP's core function.
-        if ($mime_type === 'image/tiff' && !$width || !$height) {
+        if ($mime_type === 'image/tiff' && (!$width || !$height)) {
           $uri = $image->entity->getFileUri();
           $path = $this->fileSystem->realpath($uri);
           $image_size = getimagesize($path);