From 2be9d716597169085dc88fce27354697b2a7649a Mon Sep 17 00:00:00 2001
From: Elian Doran <contact@eliandoran.me>
Date: Fri, 19 Sep 2025 16:26:06 +0300
Subject: [PATCH] fix(canvas): error when trying to save due to uninitialized
 API

---
 apps/client/src/widgets/type_widgets/canvas.ts     | 3 +++
 apps/client/src/widgets/type_widgets/canvas_el.tsx | 6 +++++-
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/apps/client/src/widgets/type_widgets/canvas.ts b/apps/client/src/widgets/type_widgets/canvas.ts
index 343e2489c..0876d1b55 100644
--- a/apps/client/src/widgets/type_widgets/canvas.ts
+++ b/apps/client/src/widgets/type_widgets/canvas.ts
@@ -357,6 +357,9 @@ export default class ExcalidrawTypeWidget extends TypeWidget {
         if (options.is("databaseReadonly")) {
             return;
         }
+
+        if (!this.canvasInstance.isInitialized()) return;
+
         // changeHandler is called upon any tiny change in excalidraw. button clicked, hover, etc.
         // make sure only when a new element is added, we actually save something.
         const isNewSceneVersion = this.canvasInstance.isNewSceneVersion();
diff --git a/apps/client/src/widgets/type_widgets/canvas_el.tsx b/apps/client/src/widgets/type_widgets/canvas_el.tsx
index a6f1ee16f..b5018325d 100644
--- a/apps/client/src/widgets/type_widgets/canvas_el.tsx
+++ b/apps/client/src/widgets/type_widgets/canvas_el.tsx
@@ -76,6 +76,10 @@ export default class Canvas {
         return this.currentSceneVersion === SCENE_VERSION_INITIAL;
     }
 
+    isInitialized() {
+        return !!this.excalidrawApi;
+    }
+
     resetScene(theme: Theme) {
         this.excalidrawApi.updateScene({
             elements: [],
@@ -194,4 +198,4 @@ function CanvasElement(opts: ExcalidrawProps) {
             />
         </div>
     );
-}
\ No newline at end of file
+}