Method loadAndWait

pj_app/tests/file_loader_test.cpp:117–142

Enqueue a load and pump the event loop until it completes. Single-instance loads run progressively on a worker thread, so completion is asynchronous (fileLoaded/fileLoadFailed); fanout / layout-reuse / failure complete synchronously inside loadFile (the signal fires before exec(), so done is already set and we skip the loop).

  // synchronously inside loadFile (the signal fires before exec(), so done is
  // already set and we skip the loop).
  [[nodiscard]] bool loadAndWait(const QString& path, const PJ::LoadHints& hints) {
    QEventLoop loop;
    bool ok = false;
    bool done = false;
    const auto on_loaded = QObject::connect(
        loader_.get(), &PJ::FileLoader::fileLoaded, &loop,
        [&](const QString&, const QString&, const QString&, const QString&) {
          ok = true;
          done = true;
          loop.quit();
        });
    const auto on_failed =
        QObject::connect(loader_.get(), &PJ::FileLoader::fileLoadFailed, &loop, [&](const QString&, const QString&) {
          ok = false;
          done = true;
          loop.quit();
        });
    loader_->loadFile(path, nullptr, hints);
    if (!done) {
      QTimer::singleShot(10000, &loop, [&loop]() { loop.quit(); });  // safety: fail, don't hang CI
      loop.exec();
    }
    QObject::disconnect(on_loaded);
    QObject::disconnect(on_failed);
    return ok;
  }

  [[nodiscard]] bool load(const QString& path) {
    return loadAndWait(path, loadHints());