Portlet Drag and Drop

[Anastasia Cheetham]

On 6-May-08, at 5:47 PM, Richard Schwerdtfeger wrote:

> I would like to request that the code for lightbox be modified.  
> Currently, all the drop targets are marked as move when no object  
> has been selected for drag. Dropeffect should be set to none until a  
> drag operation has been selected. Once an object has been grabbed  
> you should then set the dropeffects on the appropriate targets to  
> "move." After drag has been stopped all dropeffects should be set  
> back to none.
>
> Reasoning:
> 	• You don't know if you can drop the source on the target. You will  
> have other widgets in a portal application and if you grab them for  
> dragging you are saying that they can be dropped on the gridcells.  
> So, dropeffect should be set to "none" until a drag has started and  
> you know what operation can be performed on the target.
> 	• The AT is looking for objects which can receive an object that  
> has been grabbed. Pre-marking targets before an object is selected  
> for drag is confusing.
>


Rich, thanks for this email. It's really great to have your expertise  
helping us to understand the ARIA states and properties, and apply  
them correctly. It seems in this case, we are not using the dropeffect  
properly - we'll definitely fix that.

-- 
Anastasia Cheetham                   a.cheetham at utoronto.ca
Software Designer, Fluid Project    http://fluidproject.org
Adaptive Technology Resource Centre / University of Toronto