On Jul 12, 6:06 pm, "marius d." <marius.dan...@gmail.com> wrote:
> On Jul 12, 6:04 pm, Francois Bertrand <fber...@gmail.com> wrote:
>
> > If more and more widgets are added, there is a potential version
> > problem with referenced CSS/js resources they may need to share.  For
> > example, the Flot widget needs the google canvas for IE (http://
> > excanvas.sourceforge.net/).  Actually this javascript is inside the
> > Flot widget code and it shouldn't be there.

BTW Lift-widgets has a common folder under /resources/to/serve where
common scripts should be placed. If it turns out that a script needs
to be used by multiple widgets it should probably be placed be placed
there.

Furthermore a widget doesn't have to be part of lift-widgets project.
Anyone can build a widget and package it in a single jar file
including resources like (js, css, images etc) and distribute it.

>
> > Another problem is, if the same widget is used twice in the same page,
> > how do I avoid include the CSS/js resources twice?  
>
> Lift takes care of that when it merges heads.
>
> Is is a problem if
>
> > the widget needs a "one time per page" initialization.
>
> > In both case, a API to manage shared resource would be useful.

What API are you talking about? ... the resource referencing (js, css,
images etc.) are referenced by path only and common resources should
be placed in common folder. Do we need more then that? Furthermore if
someone develops a bunch of widgets that conceptually pertain to the
same "family" constructing a proper structure to place family common
scripts is trivial.

>> Maybe,
> > Lift has an elegant solution I'm not aware of and only a little
> > documentation will suffice.
>
> > Francois
>
> > On Jul 12, 2:58 am, "marius d." <marius.dan...@gmail.com> wrote:
>
> > > Well widgets don't have a whole lot of commonalities besides the init
> > > () method. Regarding destroy() that would probably be helpful for
> > > widgets that are communicating remotely with other services. The rest
> > > of the widget functions are mostly very specific helper functions that
> > > renders markup, JS script tags etc, and work with very specific data
> > > models.
>
> > > Br's
> > > Marius
>
> > > On Jul 12, 3:03 am, Timothy Perrett <timo...@getintheloop.eu> wrote:
>
> > > > > I'm not sure, depends I guess.
> > > > > Just a simple onLoad/onUnload callback could be enough...
> > > > > (The unload is to make sure not to leak mem if you're just reloading 
> > > > > the
> > > > > webapp without restarting the server)
>
> > > > That was my thinking - right now the pattern appears to be "def init"
> > > > for booting the widget, so perhaps, init and destroy methods would be
> > > > good appropriate. Like I said, just something to make this stuff a
> > > > known, typeable quantity would be good.
>
> > > > > Java Specialist
> > > > > Scala Loudmouth
> > > > > Lift Committer
>
> > > > What happened to your rouge architect signature?!
>
> > > > Cheers, Tim
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