Can ModalWindow hijack hardware button handling?

[Tuoman]

I figured that ModalWindow can hijack touch buttons easily, but how can I do this for hardware buttons?

Is the only way to only call custom functions? So that in Designer I always use Interaction to call virtual function1, and route it like this:

function1(){
if (modalwindow1.isvisible())
{
... modal window handling
} else {
 
...normal application button handling, change Screen etc.
}
}

This way I cannot use any of the default Interactions (change Screen etc.) in Designer, because they would act the same regardless of modal window is shown. So I have to route every screen change via virtual function call.

Would be nice if the modal window could override the handleKeyEvent()

Thanks!

[Martin KJELDSEN · Accepted solution]

There's nothing inherent in the functionality of the ModalWindow class that can do anything with hardware buttons.

There's a way to connect hardware buttons to interactions - would that do it for you?

/Martin

[Tuoman]

>There's nothing inherent in the functionality of the ModalWindow class that can do anything with hardware buttons.

Ok. I think this would be as useful as hijacking touch events. Just like the ModalWindow does with touch events:

@class   ModalWindow ModalWindow.hpp include/gui/common/ModalWindow.hpp
@brief   Container for displaying a modal window and hijacking touch event to underlaying viewand widgets.

(we don't have touchscreen in our product, only hardware buttons)

>There's a way to connect hardware buttons to interactions - would that do it for you?

Is this the system I proposed? E.g. map everything to virtual functions, which will check for the modal. Ok, I will use that. I should work, just needs a lot of repeated code, and I cannot use "change screen" in designer (because it will change screen regardless of modal window).

[Martin KJELDSEN]

What "hijacking touch events" means is simply that it's an overlay, and as such, things that are below it won't receive touch events. The description is a bit convoluted.

/Martin