snapshot of https://github.com/toeverything/AFFiNE.git (canary, 2026-09-16; blobs > 131072B omitted)

blocksuite/affine/blocks/note/src/turbo/note-painter.worker.ts

@@ -0,0 +1,49 @@
+import type {
+  BlockLayout,
+  BlockLayoutPainter,
+  WorkerToHostMessage,
+} from '@blocksuite/affine-gfx-turbo-renderer';
+import { BlockLayoutPainterExtension } from '@blocksuite/affine-gfx-turbo-renderer/painter';
+
+export interface NoteLayout extends BlockLayout {
+  type: 'affine:note';
+  background?: string;
+}
+
+function isNoteLayout(layout: BlockLayout): layout is NoteLayout {
+  return layout.type === 'affine:note';
+}
+
+class NoteLayoutPainter implements BlockLayoutPainter {
+  paint(
+    ctx: OffscreenCanvasRenderingContext2D,
+    layout: BlockLayout,
+    layoutBaseX: number,
+    layoutBaseY: number
+  ): void {
+    if (!isNoteLayout(layout)) {
+      const message: WorkerToHostMessage = {
+        type: 'paintError',
+        error: 'Invalid layout format',
+        blockType: 'affine:note',
+      };
+      self.postMessage(message);
+      return;
+    }
+
+    // Get the layout rectangle
+    const x = layout.rect.x - layoutBaseX;
+    const y = layout.rect.y - layoutBaseY;
+    const width = layout.rect.w;
+    const height = layout.rect.h;
+
+    ctx.fillStyle = layout.background || 'rgb(255, 255, 255)';
+    ctx.fillRect(x, y, width, height);
+    ctx.strokeRect(x, y, width, height);
+  }
+}
+
+export const NoteLayoutPainterExtension = BlockLayoutPainterExtension(
+  'affine:note',
+  NoteLayoutPainter
+);