FileDropHandler::FileDropHandler(QWidget* widget, const std::function<void (const FileNamesContainer&)>& handler) :
	QObject(widget),
	_handler(handler)
{
	assert(widget);
	assert(handler);

	widget->setAcceptDrops(true);
	widget->installEventFilter(this);
}

bool FileDropHandler::eventFilter(QObject* /*watched*/, QEvent* event)
{
	if (event->type() == QEvent::DragEnter)
	{
		auto * e = static_cast<QDragEnterEvent*>(event);
		if (e->mimeData()->hasUrls())
			e->acceptProposedAction();
	}
	else if (event->type() == QEvent::Drop)
	{
		auto * e = static_cast<QDropEvent*>(event);

		FileNamesContainer filePaths;
		for (const QUrl& url: e->mimeData()->urls())
			filePaths.emplace_back(url.toLocalFile());

		_handler(filePaths);
	}

	return false;
}

FileDropHandler is, of course, a subclass of QObject. And I'm instantiating it for a certain QTextEdit. Problem: DragEnter event is processed and acceptProposedAction is executed, but the Drop event does not follow. What did I miss?