On Monday, 2013-11-11, 10:38:28, Topi Mäenpää wrote: > I've been using Qt's JavaScript engines to provide a scripting interface > to Into about ever since QScriptEngine was introduced. It provided > fairly good extension interfaces and I was able to implement almost > everything I wanted using the public API. > > Enter QML. From its introduction, it has been clear that using > JavaScript extension from QML applications was not a planned use case. > In Qt4, QDeclarativeEngine used QScriptEngine to evaluate JavaScript, > but it deliberately hid that as an "implementation detail". I brought up > this issue on the forums a couple of years ago > (http://qt-project.org/forums/viewthread/4333), and talked with > developers at Nokia and later Digia in person, but the situation hasn't > got any better. On the contrary, actually.
I think the existence of JavaScript context in QML should be considered a feature of QML, not of Qt or the application itself. There is a module specifically created for the purpose of general scripting using JavaScript and that is QtScript. As you wrote yourself, it provides more or less everything you want it to do. In pre-QML times you've had to create a C++ application, probably using QtWidgets if you had UI, and explicitly create, initialize and run your script engine instance. I see no reason to do anything different just because of a switch in UI technology. You can still create, initialize and run your script engine instance. You could even make it or a customized wrapper instantiable through QML. Please correct me if I am wrong, but the issue you have with keeping doing what has proven to be a good way is the "deprectated" label QtScript currently has. If so, I would imagine that this status could be changed to actively mainained again. Qt development is a combined effort of multiple parties. If one or more parties have interest in continued development of a scripting module and provide the resources to do it, then I am sure that would change the official status of said module. Cheers, Kevin -- Kevin Krammer | [email protected] | Software Engineer Klarälvdalens Datakonsult AB, a KDAB Group company Tel. Sweden (HQ) +46-563-540090, USA +1-866-777-KDAB(5322) KDAB - Qt Experts - Platform-independent software solutions
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