From f3d036a546dd03426da394418c328355e8ddd551 Mon Sep 17 00:00:00 2001
From: Sam Becker <sam@sambecker.com>
Date: Wed, 20 Mar 2024 10:23:20 -0500
Subject: [PATCH] Improve canvas error handling

---
 src/components/CanvasBlurCapture.tsx | 5 +++++
 src/photo/form/PhotoForm.tsx         | 7 +++++++
 2 files changed, 12 insertions(+)

diff --git a/src/components/CanvasBlurCapture.tsx b/src/components/CanvasBlurCapture.tsx
index f72de914..af8eea89 100644
--- a/src/components/CanvasBlurCapture.tsx
+++ b/src/components/CanvasBlurCapture.tsx
@@ -8,6 +8,7 @@ export default function CanvasBlurCapture({
   imageUrl,
   onLoad,
   onCapture,
+  onError,
   width,
   height,
   hidden = true,
@@ -18,6 +19,7 @@ export default function CanvasBlurCapture({
   imageUrl: string
   onLoad?: (imageData: string) => void
   onCapture: (imageData: string) => void
+  onError?: (error: string) => void
   width: number
   height: number
   hidden?: boolean
@@ -74,12 +76,14 @@ export default function CanvasBlurCapture({
             refShouldCapture.current = false;
           } else {
             console.error('Cannot get 2d context');
+            onError?.('Cannot get 2d context');
             // Retry capture in case canvas is not available
             refTimeouts.current.push(setTimeout(capture, RETRY_DELAY));
           }
         } else {
           // eslint-disable-next-line max-len
           console.error('Cannot generate blur data: canvas/image not ready');
+          onError?.('Cannot generate blur data: canvas/image not ready');
           // Retry capture in case canvas is not available
           refTimeouts.current.push(setTimeout(capture, RETRY_DELAY));
         }
@@ -106,6 +110,7 @@ export default function CanvasBlurCapture({
     imageUrl,
     onCapture,
     onLoad,
+    onError,
     width,
     height,
     edgeCompensation,
diff --git a/src/photo/form/PhotoForm.tsx b/src/photo/form/PhotoForm.tsx
index f6bcf950..5ca7e128 100644
--- a/src/photo/form/PhotoForm.tsx
+++ b/src/photo/form/PhotoForm.tsx
@@ -51,6 +51,8 @@ export default function PhotoForm({
     useState<Partial<PhotoFormData>>(initialPhotoForm);
   const [formErrors, setFormErrors] =
     useState(getFormErrors(initialPhotoForm));
+  const [blurError, setBlurError] =
+    useState<string>();
   const [imageData, setImageData] =
     useState<string>();
 
@@ -165,6 +167,10 @@ export default function PhotoForm({
 
   return (
     <div className="space-y-8 max-w-[38rem]">
+      {blurError &&
+        <div className="border error text-error rounded-md px-2 py-1">
+          {blurError}
+        </div>}
       <div className="flex gap-2 flex-wrap">
         {renderAiButton(
           'Title',
@@ -209,6 +215,7 @@ export default function PhotoForm({
           height={height}
           onLoad={setImageData}
           onCapture={updateBlurData}
+          onError={setBlurError}
         />
         {debugBlur && formData.blurData &&
           <img