Turn off touch events for Mac OS (#3404)

src/QGCQuickWidget.cc

@@ -39,7 +39,12 @@
 QGCQuickWidget::QGCQuickWidget(QWidget* parent) :
     QQuickWidget(parent)
 {
+#ifndef __macos__
+    // The following causes the Map control to hang after doing a pinch gesture on mac trackpads.
+    // By not turning this on for macos we lose pinch gesture, but two finger scroll still zooms the map.
+    // So it's a decent workaround. Qt bug reported: 53634
     setAttribute(Qt::WA_AcceptTouchEvents);
+#endif
     rootContext()->engine()->addImportPath("qrc:/qml");
     rootContext()->setContextProperty("joystickManager", qgcApp()->toolbox()->joystickManager());
 }