Well you may have a small problem there... AJAX requests are, as their name dictates, asynchronous. That is, prototype will fire one off, but won't sit around waiting for the server. It will move on and execute the next line of code, then go back to the onComplete callback.
This is problematic for returning a value inside the onComplete callback because the revert function's execution might have already finished. Furthermore you may have a problem in that you'll have a draggable sitting there in the middle of the screen waiting for an ajax request to tell it whether or not it needs to revert. If this is more than a second or so it's going to seriously confuse the user when it reverts back across the screen. I'd suggest loading into JS on page load all the different rules as to which draggables can be dropped where, then checking each of these in the function you specify in revert. On Sep 16, 2:47 pm, Erwin <[EMAIL PROTECTED]> wrote: > yes, that's right.. I can make an Ajax request to the server, return > would be true or false if drop is accepted .. good I am going to try > it > > was not sure about the different callback timings , thanks a lot > > On 16 sep, 13:22, bluezehn <[EMAIL PROTECTED]> wrote: > > > revert 1.5 boolean or function reference, defaults to false. > > Revert can also be an arbitrary function reference, called when the > > drag ends. Specifying ‘failure’ will instruct the draggable not to > > revert if successfully dropped in a droppable. > > > From draggable api. So you can set revert to be a function which > > decides whether or not to revert the draggable to its starting > > position. Is this what you meant? > > > On Sep 16, 11:34 am, Erwin <[EMAIL PROTECTED]> wrote: > > > > I would like to check if dragging an item in a droppable zone is > > > allowed and refuse the drop if not... > > > when should I fire the checking action ? > > > > should I check in the url action ? or use one of the callbacks > > > onDrop > > > > thanks for your suggestions > > > > erwin --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Prototype & script.aculo.us" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/prototype-scriptaculous?hl=en -~----------~----~----~----~------~----~------~--~---
