Function canvasToPngUrl

src/hooks/useMaskedThumbnail.ts:91–96

(canvas: ImageCacheCanvas)

}

async function canvasToPngUrl(canvas: ImageCacheCanvas): Promise<string | null> {
  const blob = isOffscreenCanvas(canvas)
    ? await canvas.convertToBlob({ type: 'image/png' })
    : await new Promise<Blob | null>((resolve) => canvas.toBlob(resolve, 'image/png'));
  return blob ? URL.createObjectURL(blob) : null;
}

async function loadMaskedThumbnail(imageFile: File, maskFile: File, inverseMask: boolean): Promise<string | null> {
  try {