Hey, Alexei
2010/4/18 Alexei Vinidiktov <[email protected]>
> Hello,
>
> Do I understand correctly that Wt processes almost everyting on the server
> side?
>
> Trying the examples I saw that every action triggers a call to the
> server, where in most cases a client-side action (written in
> Javascript) would suffice. For instance if I click a button in the
> example for PushButton here
> http://www.webtoolkit.eu/widgets#/form-widgets/wpushbutton I see a
> "loading..." notification and after that the text in the lower part of
> the window changes to "Last activated signal: WPushButton click".
>
> Normally, Wt handle each event on the server side inside the event loop.
But if you
want to handle client side events in you own JavaScript code you may want to
use Wt::JSlot. Carefully consider the use of this as Wt gives you
abstraction
from JavaScript and highly optimized to handle events on the server side.
If you want to optimize the latency of the visual effects consider using
stateless slot
implementations instead of Wt::JSlot.
> Is it really necessary to make a server call in such instances?
>
> Doing everying server-side makes the interface a bit sluggish.
>
> Its classical (and great) behavior of any Wt application, because Wt
provides
to developer a widget-centric API and offers complete abstraction of any
web-specific implementation details, including event handling.
> I wonder what the rationale for that is.
>
Could actions be separated into two categories: client-side and server-side?
>
> If it's not possible, how could the responsiveness of the interface be
> improved?
>
> If you need extra optimization consider to use Wt::JSlot or stateless
slots.
> Thanks.
>
> --
> Alexei Vinidiktov
>
>
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Regards,
Dmitriy Igrishin
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