I would like to do "play" a bit with this, but i can't see anything related to Qml extension anywhere, so how it can be enabled!? Also, i do not know is that important or does it's related, but Cmake generates the following warning during compilation: ........................................................................................... src/lib/plugins/qml/api/extensionscheme/qmlextensionscheme.h:54: Warning: Class QmlExtensionScheme implements the interface QQmlParserStatus but does not list it in Q_INTERFACES. qobject_cast to QQmlParserStatus will not work! ...........................................................................................
There is an example qml extension: https://phabricator.kde.org/D14519 Also bugzilla is not for questions, use mailing list or irc instead.
I was placed the example extension folder in "plugins" directory, so it was not working, but curently i solved it. I opened this issue mist likely because of the warning. However... My bad, sorry!