if(Ext.dd.DropZone){Ext.tree.TreeDropZone=function(a,b){this.allowParentInsert=false;this.allowContainerDrop=false;this.appendOnly=false;Ext.tree.TreeDropZone.superclass.constructor.call(this,a.innerCt,b);this.tree=a;this.dragOverData={};this.lastInsertClass="x-tree-no-status"};Ext.extend(Ext.tree.TreeDropZone,Ext.dd.DropZone,{ddGroup:"TreeDD",expandDelay:1000,expandNode:function(a){if(a.hasChildNodes()&&!a.isExpanded()){a.expand(false,null,this.triggerCacheRefresh.createDelegate(this))}},queueExpand:function(a){this.expandProcId=this.expandNode.defer(this.expandDelay,this,[a])},cancelExpand:function(){if(this.expandProcId){clearTimeout(this.expandProcId);this.expandProcId=false}},isValidDropPoint:function(a,j,h,d,c){if(!a||!c){return false}var f=a.node;var g=c.node;if(!(f&&f.isTarget&&j)){return false}if(j=="append"&&f.allowChildren===false){return false}if((j=="above"||j=="below")&&(f.parentNode&&f.parentNode.allowChildren===false)){return false}if(g&&(f==g||g.contains(f))){return false}var b=this.dragOverData;b.tree=this.tree;b.target=f;b.data=c;b.point=j;b.source=h;b.rawEvent=d;b.dropNode=g;b.cancel=false;var i=this.tree.fireEvent("nodedragover",b);return b.cancel===false&&i!==false},getDropPoint:function(g,f,k){var l=f.node;if(l.isRoot){return l.allowChildren!==false?"append":false}var c=f.ddel;var m=Ext.lib.Dom.getY(c),i=m+c.offsetHeight;var h=Ext.lib.Event.getPageY(g);var j=l.allowChildren===false||l.isLeaf();if(this.appendOnly||l.parentNode.allowChildren===false){return j?false:"append"}var d=false;if(!this.allowParentInsert){d=l.hasChildNodes()&&l.isExpanded()}var a=(i-m)/(j?2:3);if(h>=m&&h<(m+a)){return"above"}else{if(!d&&(j||h>=i-a&&h<=i)){return"below"}else{return"append"}}},onNodeEnter:function(d,a,c,b){this.cancelExpand()},onNodeOver:function(b,h,g,f){var j=this.getDropPoint(g,b,h);var c=b.node;if(!this.expandProcId&&j=="append"&&c.hasChildNodes()&&!b.node.isExpanded()){this.queueExpand(c)}else{if(j!="append"){this.cancelExpand()}}var d=this.dropNotAllowed;if(this.isValidDropPoint(b,j,h,g,f)){if(j){var a=b.ddel;var i;if(j=="above"){d=b.node.isFirst()?"x-tree-drop-ok-above":"x-tree-drop-ok-between";i="x-tree-drag-insert-above"}else{if(j=="below"){d=b.node.isLast()?"x-tree-drop-ok-below":"x-tree-drop-ok-between";i="x-tree-drag-insert-below"}else{d="x-tree-drop-ok-append";i="x-tree-drag-append"}}if(this.lastInsertClass!=i){Ext.fly(a).replaceClass(this.lastInsertClass,i);this.lastInsertClass=i}}}return d},onNodeOut:function(d,a,c,b){this.cancelExpand();this.removeDropIndicators(d)},onNodeDrop:function(c,j,f,d){var i=this.getDropPoint(f,c,j);var g=c.node;g.ui.startDrop();if(!this.isValidDropPoint(c,i,j,f,d)){g.ui.endDrop();return false}var h=d.node||(j.getTreeNode?j.getTreeNode(d,g,i,f):null);var b={tree:this.tree,target:g,data:d,point:i,source:j,rawEvent:f,dropNode:h,cancel:!h,dropStatus:false};var a=this.tree.fireEvent("beforenodedrop",b);if(a===false||b.cancel===true||!b.dropNode){g.ui.endDrop();return b.dropStatus}g=b.target;if(i=="append"&&!g.isExpanded()){g.expand(false,null,function(){this.completeDrop(b)}.createDelegate(this))}else{this.completeDrop(b)}return true},completeDrop:function(g){var d=g.dropNode,e=g.point,c=g.target;if(!Ext.isArray(d)){d=[d]}var f;for(var b=0,a=d.length;b<a;b++){f=d[b];if(e=="above"){c.parentNode.insertBefore(f,c)}else{if(e=="below"){c.parentNode.insertBefore(f,c.nextSibling)}else{c.appendChild(f)}}}f.ui.focus();if(Ext.enableFx&&this.tree.hlDrop){f.ui.highlight()}c.ui.endDrop();this.tree.fireEvent("nodedrop",g)},afterNodeMoved:function(a,c,f,d,b){if(Ext.enableFx&&this.tree.hlDrop){b.ui.focus();b.ui.highlight()}this.tree.fireEvent("nodedrop",this.tree,d,c,a,f)},getTree:function(){return this.tree},removeDropIndicators:function(b){if(b&&b.ddel){var a=b.ddel;Ext.fly(a).removeClass(["x-tree-drag-insert-above","x-tree-drag-insert-below","x-tree-drag-append"]);this.lastInsertClass="_noclass"}},beforeDragDrop:function(b,a,c){this.cancelExpand();return true},afterRepair:function(a){if(a&&Ext.enableFx){a.node.ui.highlight()}this.hideProxy()}})};