[Catalyst] Catalyst + Ajax

[Andreas Marienborg]

On 1. des. 2005, at 15.31, Chisel Wright wrote:
>
> The other one that's got me stumped at the moment is doing something
> useful when a dragged element is dropped somewhere.
>
> I've got the draggable portion working, and I'm seeing a Catalyst  
> called
> when the element is released in my dropzone.  I just have no idea  
> how to
> return anything from the action that has an effect. I've tried
> $c->res->output($prototype->update_element_function(..)) without any
> luck,
>
> ---- cut here ----
> <img src="static/images/btn_120x50_powered.png" width="120"  
> height="50"
> id="product_1" class="product" />
> [% c.prototype.draggable_element('product_1', {revert => 'true'}) %]
>
> <img src="static/images/btn_120x50_powered.png" width="120"  
> height="50"
> id="product_2" class="product" />
> [% c.prototype.draggable_element('product_2', {revert => 'true'}) %]
>
> <div class="dropbox" id="cart">
>   <span style="vertical-align: bottom;">Drop an image here</style>
> </div>
> [% drop_url = base _ 'dragdrop/dropped' %]
> [% c.prototype.drop_receiving_element (
>     'cart',
>     {
>         accept     => 'product',
>         url        => drop_url,
>         hoverclass => 'dropbox_active',
>     }
>   )
> %]
> <p>&nbsp;</p>
> <div id="status"></div>



Droppables dont do no nothing on a drop except send of the request to  
the URL specified, unless you create some handler-functions for it to  
do when the item is dropped (called onDrop cleverly enough).

The other handler you can attach to a droppable is onHover, which  
will trigger when an _accepted_ item is hovered over the droppable


did that make it any clearer? afaik, there is no way to have a  
Droppable do anything "at the end of teh request", effectivly  
removing any error-checking possibilites etc.


andreas