1 files changed, 81 insertions, 0 deletions
diff --git a/frontend/beta/js/YUI-extensions/dd/DropZone.js b/frontend/beta/js/YUI-extensions/dd/DropZone.js
new file mode 100644
index 0000000..ce446fb
--- a/dev/null
+++ b/frontend/beta/js/YUI-extensions/dd/DropZone.js
@@ -0,0 +1,81 @@
+// kill drag drop dependency
+if(YAHOO.util.DragDrop){
+YAHOO.ext.dd.DropZone = function(el, config){
+    YAHOO.ext.dd.DropZone.superclass.constructor.call(this, el, config);
+};
+
+YAHOO.extendX(YAHOO.ext.dd.DropZone, YAHOO.ext.dd.DropTarget, {
+    getTargetFromEvent : function(e){
+        return YAHOO.ext.dd.Registry.getTargetFromEvent(e);
+    },
+    
+    onNodeEnter : function(n, dd, e, data){
+        
+    },
+    
+    onNodeOver : function(n, dd, e, data){
+        return this.dropAllowed;
+    },
+    
+    onNodeOut : function(n, dd, e, data){
+        
+    },
+    
+    onNodeDrop : function(n, dd, e, data){
+        return false;
+    },
+    
+    onContainerOver : function(n, dd, e, data){
+        return this.dropNotAllowed;
+    },
+    
+    onContainerDrop : function(n, dd, e, data){
+        return false;
+    },
+    
+    notifyEnter : function(dd, e, data){
+        return this.dropNotAllowed;
+    },
+    
+    notifyOver : function(dd, e, data){
+        var n = this.getTargetFromEvent(e);
+        if(!n){ // not over valid drop target
+            if(this.lastOverNode){
+                this.onNodeOut(this.lastOverNode, dd, e, data);
+                this.lastOverNode = null;
+            }
+            return this.onContainerOver(dd, e, data);
+        }
+        if(this.lastOverNode != n){
+            if(this.lastOverNode){
+                this.onNodeOut(this.lastOverNode, dd, e, data);
+            }
+            this.onNodeEnter(n, dd, e, data);
+            this.lastOverNode = n;
+        }
+        return this.onNodeOver(n, dd, e, data);
+    },
+    
+    notifyOut : function(dd, e, data){
+        if(this.lastOverNode){
+            this.onNodeOut(this.lastOverNode, dd, e, data);
+            this.lastOverNode = null;
+        }
+    },
+    
+    notifyDrop : function(dd, e, data){
+        if(this.lastOverNode){
+            this.onNodeOut(this.lastOverNode, dd, e, data);
+            this.lastOverNode = null;
+        }
+        var n = this.getTargetFromEvent(e);
+        return n ?
+            this.onNodeDrop(n, dd, e, data) :
+            this.onContainerDrop(n, dd, e, data);
+    },
+    
+    triggerCacheRefresh : function(){
+        YAHOO.util.DDM.refreshCache(this.groups);
+    }  
+});
+}