/kuuote/ScrapboxのCursorオブジェクトを取得する

generated at 2/17/2025, 7:09:23 AM

ScrapboxのCursorオブジェクトを取得する
吐き出せやオラッするやつ
script.jsexport function getCursor() {
  const textarea = document.getElementById("text-input");

  // from https://github.com/takker99/scrapbox-userscript-std/blob/58ede69911a63600acb39745dc7fdec3fcf8cf6d/browser/dom/caret.ts#L50
  const reactKey = Object.keys(textarea)
    .find((key) => key.startsWith("__reactFiber"));

  const input = textarea[reactKey].return.return.stateNode;
  const cursor = input._stores.find((obj) => obj.constructor.name === "Cursor");
  const selection = input._stores.find((obj) =>
    obj.constructor.name === "Selection"
  );
  const mobileSelection = input._stores.find((obj) =>
    obj.constructor.name === "MobileSelection"
  );
  return {
    cursor,
    selection,
    mobileSelection,
  };
}