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YAHOO.ext.tree.TreeDragZone = function(tree, config){
YAHOO.ext.tree.TreeDragZone.superclass.constructor.call(this, tree.getEl(), config);
this.tree = tree;
};
YAHOO.extendX(YAHOO.ext.tree.TreeDragZone, YAHOO.ext.dd.DragZone, {
ddGroup : 'TreeDD',
onBeforeDrag : function(data, e){
var n = data.node;
return n && n.draggable && !n.disabled;
},
onInitDrag : function(e){
var data = this.dragData;
this.tree.getSelectionModel().select(data.node);
this.proxy.update('');
data.node.ui.appendDDGhost(this.proxy.ghost.dom);
this.tree.fireEvent('startdrag', this.tree, data.node, e);
},
getRepairXY : function(e, data){
return data.node.ui.getDDRepairXY();
},
onEndDrag : function(data, e){
this.tree.fireEvent('enddrag', this.tree, data.node, e);
},
onValidDrop : function(dd, e, id){
this.tree.fireEvent('dragdrop', this.tree, this.dragData.node, dd, e);
this.hideProxy();
},
beforeInvalidDrop : function(e, id){
if(YAHOO.util.Anim){
// this scrolls the original position back into view
var sm = this.tree.getSelectionModel();
sm.clearSelections();
sm.select(this.dragData.node);
}
}
});
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