Nope, no easy build-in solution. Just like with native apps, you have to do 
your homework :)

By the way, you have events to help you with that.
http://www.emy-library.org/documentation/1.0/core-documentation.html#event-custom
beforetransition / aftertransition
Those events are triggered each time you slide from a panel to another.

Or you can directly use transitions attributes to trigger a JS function when 
sliding between panels
If you look at the Notes app demo
http://www.emy-library.org/demos/notes/notes.html
In the code you can see
<section id="note" data-title="Notes App" class="panel" 
data-onshow="notes.tlbManager()" data-onexit="notes.emptyForm()">
Those really helps to trigger a function at a particular moment on a particular 
screen


Again, If you don't care about device physical back button & browser's 
prev/next buttons, are on schedule / budget, you can just create your own 
backButton & hide Emy's one
<section id="screenA" data-title="Screen A" class="panel" 
data-hidebackbutton="true">
and put your own button in the toolbar's first div (for the left side) or 
second div (for the right side)
<a id="mybackbutton" class="button" onclick="myFunction(myVar)">Back</a>

Kind of like the "About" button in the toolbar of the same Notes demo app :)


Remi


Le 5 juin 2014 à 13:59, Rune Back <rune.b...@gmail.com> a écrit :

> Hi Remi
>  
> No good Remi. 70%?!! - I was hoping for better news :((
>  
> So you go from screen A to B and to C. At C you update some information which 
> means you also need to update screen A and B. So after the update you go 
> straight to screen B and before doing so you update the screen and 
> everything's ok. But ... when you at screen B hit the backButton the old info 
> at screen A will appear. (If I remember correctly that is what will happen.)
>  
> No easy (almost) built-in solution? ~)
>  
> Regards
>  
> Rune
>  
> 
> 
> 2014-06-05 14:02 GMT+03:00 Remi Grumeau <remi.grum...@gmail.com>:
> eh eh :)
> If you don't play the rules, be ready to face those kind of problems ;)
> 
> Emy deals with going from screen A to screen B by itself. If you want no 
> transitions between screens, just set emy.transitionMode to "none"
> http://www.emy-library.org/documentation/1.0/core-documentation.html#emy-transitionmode
> 
> Then going back and forward with browser prev/next buttons is supported.
> 
> Only way to do it by yourself would be to totally recreate 70% of the 
> library, aka dealing with hash & hashChange events.
> And i'm pretty sure you don't want to do that :)
> 
> 
> Or, even worse, you can hide the backButton, and create your own backButton 
> (just call it something else than "backButton") with the onClick you want on 
> it.
> That wouldn't support the device physical back button by the way...
> 
> 
> Remi
> 
> Le 5 juin 2014 à 07:55, Rune Back <rune.b...@gmail.com> a écrit :
> 
>> Hi
>> 
>> I've got all pages in one <section></section>. When changing to another page 
>> I change the content of this <section></section> This raises the need of 
>> changing the backButton so that it instead of doing something like 
>> window.history.back() it might call myFunction(myVar) where I can update the 
>> content of the <section></section>.
>> 
>> How do I do that?
>> 
>> Thank you for any help
>> 
>> Rune
>> 
>> 
>> 
>> 
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