EventFilter.h

#pragma once

#include <QObject>
#include <QFileOpenEvent>
#include "OpenSCADApp.h"
#include "launchingscreen.h"

class SCADEventFilter : public QObject
{
	Q_OBJECT;
	
public:
	SCADEventFilter(QObject *parent) : QObject(parent) {}
protected:
	bool eventFilter(QObject *obj, QEvent *event) override {
		// Handle Apple event for opening files, only available on OS X
		if (event->type() == QEvent::FileOpen) {
			QFileOpenEvent *foe = static_cast<QFileOpenEvent *>(event);
			const QString &filename = foe->file();
			if (LaunchingScreen *ls = LaunchingScreen::getDialog()) {
				// We need to invoke the method since, apparently, we receive
				// this event in another thread.
				QMetaObject::invokeMethod(ls, "openFile", Qt::QueuedConnection,
																	Q_ARG(QString, filename));
			}
			else {
				scadApp->requestOpenFile(filename);
			}
			return true;
		} else {
			// standard event processing
			return QObject::eventFilter(obj, event);
		}
	}
};