Re: Gnoga Callback Handlers with user data

[slos <new.stephane.los@gmail.com>]

Dear Mister Botton,

Thanks for your answer.
Le lundi 23 novembre 2015 01:50:33 UTC+1, David Botton a écrit :
> > In your tutorial tutorial_04.adb we have :
> >       App : App_Access := App_Access (Object.Connection_Data);
> 
> Yes that is a feature of Gnoga that you can associate data with a connection (not the specific control in this case). You could for example then just do the Unique_ID comparisons with the potential buttons you reused the handler for.

Well, that's what I would like to achieve but cannot figure out how.
Since what I get in the handler is the whole UI data, how can I figure out which element has triggered the event ?

> 
> You could also just associate arbitrary data with the buttons by setting attributes on them using My_Button.Attribute or subclass the buttons, use the ID in a map, etc. etc.
> 
> The beauty of Gnoga is that it is not a binding like GtkAda but an actual Ada framework from the ground up so there is a wide range of possibilities of how to design your application and accomplish any give goal.
> 
> If Ada will ever have a future beyond little black boxes, it is with Gnoga which leverages JS and HTML5 the way almost all modern cross platform (even native) apps are designed now. Just wish I had the time to do the needed development to get GNAT on to modern backends needed for client side development.
> 
> > Yes I should but by writting here I wanted to show my interest for your project to others.
> > Does it hurt ?
> 
> No not at all :) Just there are many people on the Gnoga list that do not read CLA and was concerned about you getting fast answers, but certainly can ask here.
> 
> David Botton

Stéphane LOS