Add tutorial/walkthrough popup option

[LunaMeadows]

What is the problem or limitation you are having?

Currently there is no real way inside an app to create an intuitive walk through of an app. The best option is a window with a slide show almost walk through of how to use the app but that can be confusing or not easy to follow depending on the complexity of the application.

Describe the solution you'd like

Adding an option to create a walkthrough or tutorial to an app. A good example is the walkthrough for the Glade application for creating GTK layouts. For Gtk this can be done with Popovers, the issue there tho is not all widgets support them. For example Button does not while MenuButton does support popovers. I'm not sure if Popover is the proper or best option, it's just an option I have seen used in other applications.

Describe alternatives you've considered

Creating a slide show type walk through or tutorial for an app outside of the app.

Additional context

[freakboy3742]

Can't argue this is a desirable feature. It would be great to have a simple interface to defining an "onboarding" experience for an app.

As you've hinted, I suspect that the first step may be to define a generic interface to allow for popovers (or similar); An "onboarding" API would then be a framework using those primitives.

In terms of the priorities of the core team, this is probably a little lower down on the list; building out the core widget set, and adding features like SimpleApp (#1870), Desktop tray apps (#97), and a generic settings interface (#90) would be much higher on our list. However, if someone is motivated to develop this feature, I won't stand in their way.