Method DownloadFile

pcsx2-qt/QtHost.cpp:1611–1666

}

std::optional<bool> QtHost::DownloadFile(QWidget* parent, const QString& title, std::string url, std::vector<u8>* data)
{
	static constexpr u32 HTTP_POLL_INTERVAL = 10;

	std::unique_ptr<HTTPDownloader> http = HTTPDownloader::Create(Host::GetHTTPUserAgent());
	if (!http)
	{
		QMessageBox::critical(parent, qApp->translate("EmuThread", "Error"), qApp->translate("EmuThread", "Failed to create HTTPDownloader."));
		return false;
	}

	std::optional<bool> download_result;
	const std::string::size_type url_file_part_pos = url.rfind('/');
	QtModalProgressCallback progress(parent);
	progress.GetDialog().setLabelText(
		qApp->translate("EmuThread", "Downloading %1...").arg(QtUtils::StringViewToQString(std::string_view(url).substr((url_file_part_pos != std::string::npos) ? (url_file_part_pos + 1) : 0))));
	progress.GetDialog().setWindowTitle(title);
	progress.GetDialog().setWindowIcon(GetAppIcon());
	progress.SetCancellable(true);

	http->CreateRequest(
		std::move(url), [parent, data, &download_result](s32 status_code, const std::string&, std::vector<u8> hdata) {
			if (status_code == HTTPDownloader::HTTP_STATUS_CANCELLED)
				return;

			if (status_code != HTTPDownloader::HTTP_STATUS_OK)
			{
				QMessageBox::critical(parent, qApp->translate("EmuThread", "Error"),
					qApp->translate("EmuThread", "Download failed with HTTP status code %1.").arg(status_code));
				download_result = false;
				return;
			}

			if (hdata.empty())
			{
				QMessageBox::critical(parent, qApp->translate("EmuThread", "Error"),
					qApp->translate("EmuThread", "Download failed: Data is empty.").arg(status_code));

				download_result = false;
				return;
			}

			*data = std::move(hdata);
			download_result = true;
		},
		&progress);

	// Block until completion.
	while (http->HasAnyRequests())
	{
		QApplication::processEvents(QEventLoop::AllEvents, HTTP_POLL_INTERVAL);
		http->PollRequests();
	}

	return download_result;
}

bool QtHost::DownloadFile(QWidget* parent, const QString& title, std::string url, const std::string& path)