Function showCriticalMessageBoxDelayed

src/plugin-main.cpp:138–178

* Similar to `QMessageBox::critical` but with the following changes: * 1. The title is prefixed with the plugin name * 2. MacOS: Shows text in the title bar * 3. MacOS: The message is not bold by default * 4. A common footer is appended to the message * 5. The message box is shown after a delay (default 2000ms) * 6. Shows the dialog as WindowStaysOnTopHint and NonModal * 7. Deletes t

 * @param milliseconds The delay in milliseconds before the message box is shown
 */
void showCriticalMessageBoxDelayed(const QString &title, const QString &message, int milliseconds = 2000)
{
	auto newTitle = QString("%1 : %2").arg(PLUGIN_DISPLAY_NAME, title);

	auto newMessage = message;
	newMessage.remove(QRegularExpression("(\r?\n?<br>\r?\n?)+$"));
	auto newMessageFormat = QRegularExpression("(</ol>|</ul>)$").match(newMessage).hasMatch() ? "%1%2"
												  : "%1<br><br>%2";
	newMessage = QString(newMessageFormat)
			     .arg(newMessage,
				  QTStr("NDIPlugin.PluginLimitedFeatures")
					  .arg(PLUGIN_DISPLAY_NAME, rehostUrl(PLUGIN_REDIRECT_TROUBLESHOOTING_URL),
					       rehostUrl(PLUGIN_REDIRECT_REPORT_BUG_URL)));
	QTimer::singleShot(milliseconds, [newTitle, newMessage] {
		auto dlg = new QMessageBox(QMessageBox::Critical, newTitle, newMessage, QMessageBox::Ok);
#if defined(Q_OS_MACOS)
		// Make title bar show text: https://stackoverflow.com/a/22187538/25683720
		dlg->QDialog::setWindowTitle(newTitle);
#endif
		QObject::connect(dlg, &QMessageBox::finished, [](int result) {
			if (result != QMessageBox::Ok) {
				return;
			}

			if (output_settings) {
				output_settings->show();
				output_settings->raise();
				output_settings->activateWindow();
				obs_log(LOG_DEBUG,
					"showCriticalMessageBoxDelayed: opened DistroAV settings after OK click");
			} else {
				obs_log(LOG_DEBUG,
					"showCriticalMessageBoxDelayed: DistroAV settings are unavailable at OK click");
			}
		});
		dlg->setAttribute(Qt::WA_DeleteOnClose, true);
		dlg->setWindowFlags(dlg->windowFlags() | Qt::WindowStaysOnTopHint);
		dlg->setWindowModality(Qt::NonModal);
		dlg->show();
	});
}

//
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