Guides when moving jquery-ui-draggable boxes

Question

I am working on how to show guides when moving boxes like it is in Google Docs Drawing. I would prefer an open-source code or any type of guide before starting writing my ow

Answer 1

for those who still trying to find a way of doing this, i create a fiddle

i used snap and $(this).data('draggable').snapElements;

drag: function(event, ui) 
        { 
            //var snapped = $(this).data('ui-draggable').snapElements; //## for new version of jquery UI
            var snapped = $(this).data('draggable').snapElements;
            /* Pull out only the snap targets that are "snapping": */
            var snappedTo = $.map(snapped, function(element) {
                //return element.snapping ? element.item : null;
                return element.snapping ? element : null;
            });
            if((snappedTo[0].left + snappedTo[0].width) == $(this).offset().left)
            {
                console.log('right of snapped item');
                $('#guide-v').css({'left': $(this).offset().left}).show();
            }else
            if((snappedTo[0].left)  == $(this).offset().left)
            {
                console.log('left  of snapped item');
                $('#guide-v').css({'left': $(this).offset().left}).show();
            }else $('#guide-v').hide();

            if((snappedTo[0].top)  == $(this).offset().top)
            {
                console.log('top  of snapped item');
                $('#guide-h').css({'top': $(this).offset().top}).show();
            }else
            if((snappedTo[0].top + snappedTo[0].height)  == $(this).offset().top)
            {
                console.log('bottom  of snapped item');
                $('#guide-h').css({'top': $(this).offset().top}).show();
            }else $('#guide-h').hide();
          }
      });

http://jsfiddle.net/j6zqN/1/