refactor(editor): add dom renderer entry for canvas element (#12149)

blocksuite/affine/blocks/root/src/edgeless/clipboard/clipboard.ts

@@ -2,6 +2,7 @@ import { addAttachments } from '@blocksuite/affine-block-attachment';
 import { EdgelessFrameManagerIdentifier } from '@blocksuite/affine-block-frame';
 import { addImages } from '@blocksuite/affine-block-image';
 import {
+  CanvasRenderer,
   DefaultTool,
   EdgelessCRUDIdentifier,
   ExportManager,
@@ -509,6 +510,14 @@ export class EdgelessClipboardController extends PageClipboard {
       this._checkCanContinueToCanvas(host, pathname, editorMode);
     }
 
+    // TODO: handle DOM renderer case for clipboard image generation
+    if (!(this.surface.renderer instanceof CanvasRenderer)) {
+      console.warn(
+        'Skipping canvas generation for clipboard: DOM renderer active.'
+      );
+      return canvas; // Return the empty canvas or handle error
+    }
+
     const surfaceCanvas = this.surface.renderer.getCanvasByBound(
       bound,
       canvasElements