Method cancel

Telegram/SourceFiles/data/data_document.cpp:1344–1352

}

void DocumentData::cancel() {
	if (!loading()) {
		return;
	}

	_flags |= Flag::DownloadCancelled;
	destroyLoader();
	_owner->documentLoadDone(this);
}

bool DocumentData::cancelled() const {
	return (_flags & Flag::DownloadCancelled);