From b8708aa3877ad7eb59f7d1da50d0626452184c7b Mon Sep 17 00:00:00 2001
From: Ceylo <lucas.soltic@orange.fr>
Date: Sun, 3 Nov 2024 19:10:16 +0100
Subject: [PATCH] Fix preview crash due to negative width

---
 FurAffinity/User/UserGalleryLikeView.swift | 16 ++++++++++++----
 1 file changed, 12 insertions(+), 4 deletions(-)

diff --git a/FurAffinity/User/UserGalleryLikeView.swift b/FurAffinity/User/UserGalleryLikeView.swift
index 1265a97..af1074e 100644
--- a/FurAffinity/User/UserGalleryLikeView.swift
+++ b/FurAffinity/User/UserGalleryLikeView.swift
@@ -68,10 +68,7 @@ struct UserGalleryLikeView: View {
                     }
                     .listStyle(.plain)
                     .onChange(of: gallery.previews, initial: true) {
-                        let thumbnailsWidth = geometry.size.width - 28.333
-                        let previews = gallery.previews
-                        prefetchThumbnails(for: previews, availableWidth: thumbnailsWidth)
-                        prefetchAvatars(for: previews)
+                        prefetch(with: geometry)
                     }
                 }
             }
@@ -79,6 +76,17 @@ struct UserGalleryLikeView: View {
         .navigationBarTitleDisplayMode(.inline)
         .navigationTitle("\(gallery.displayAuthor)'s \(galleryType)")
     }
+    
+    func prefetch(with geometry: GeometryProxy) {
+        let thumbnailsWidth = geometry.size.width - 28.333
+        guard thumbnailsWidth > 0 else {
+            logger.error("Skipping prefetch due to too small geometry: \(String(describing: geometry.size))")
+            return
+        }
+        let previews = gallery.previews
+        prefetchThumbnails(for: previews, availableWidth: thumbnailsWidth)
+        prefetchAvatars(for: previews)
+    }
 }
 
 // MARK: -