password-manager-mirror/frontend/beta/js/YUI-extensions/dd/Registry.js

// kill drag drop dependency
if(YAHOO.util.DragDrop){

YAHOO.ext.dd.Registry = function(){
    var elements = {}; 
    var handles = {}; 
    var autoIdSeed = 0;
    var doc = document; // local reference for IE
    
    var getId = function(el, autogen){
        if(typeof el == 'string'){
            return el;
        }
        var id = el.id;
        if(!id && autogen !== false){
            id = 'yddgen-' + (++autoIdSeed);
            el.id = id;
        }
        return id;
    };
    
    return {
        register : function(el, data){
            data = data || {};
            if(typeof el == 'string'){
                el = doc.getElementById(el);
            }
            data.ddel = el;
            elements[getId(el)] = data;
            if(data.isHandle !== false){
                handles[data.ddel.id] = data;
            }
            if(data.handles){
                var hs = data.handles;
                for(var i = 0, len = hs.length; i < len; i++){
                	handles[getId(hs[i])] = data;
                }
            }
        },
        
        unregister : function(el){
            var id = getId(el, false);
            var data = elements[id];
            if(data){
                delete elements[id];
                if(data.handles){
                    var hs = data.handles;
                    for(var i = 0, len = hs.length; i < len; i++){
                    	delete handles[getId(hs[i], false)];
                    }
                }
            }
        },
        
        getHandle : function(id){
            if(typeof id != 'string'){ // must be element?
                id = id.id;
            }
            return handles[id];
        },
        
        getHandleFromEvent : function(e){
            var t = YAHOO.util.Event.getTarget(e);
            return t ? handles[t.id] : null;
        },
        
        getTarget : function(id){
            if(typeof id != 'string'){ // must be element?
                id = id.id;
            }
            return elements[id];
        },
        
        getTargetFromEvent : function(e){
            var t = YAHOO.util.Event.getTarget(e);
            return t ? elements[t.id] || handles[t.id] : null;
        }
    };
}();
}