Method addLoading

Telegram/SourceFiles/data/data_download_manager.cpp:213–257

}

void DownloadManager::addLoading(DownloadObject object) {
	Expects(object.item != nullptr);
	Expects(object.document != nullptr);

	const auto item = object.item;
	auto &data = sessionData(item);

	const auto already = ranges::find(data.downloading, item, ByItem);
	if (already != end(data.downloading)) {
		const auto document = already->object.document;
		const auto photo = already->object.photo;
		if (document == object.document && photo == object.photo) {
			check(item);
			return;
		}
		remove(data, already);
	}

	const auto size = object.document->size;
	const auto path = object.document->loadingFilePath();
	if (path.isEmpty()) {
		return;
	}

	const auto shownExists = !data.downloading.empty()
		&& !data.downloading.front().hiddenByView;
	data.downloading.push_back({
		.object = object,
		.started = computeNextStartDate(),
		.path = path,
		.total = size,
		.hiddenByView = (!shownExists
			&& item->history()->owner().queryItemVisibility(item)),
	});
	_loading.emplace(item);
	_loadingDocuments.emplace(object.document);
	_loadingProgress = DownloadProgress{
		.ready = _loadingProgress.current().ready,
		.total = _loadingProgress.current().total + size,
	};
	_loadingListChanges.fire({});
	_clearLoadingTimer.cancel();

	check(item);
}

void DownloadManager::check(not_null<const HistoryItem*> item) {
	auto &data = sessionData(item);