onRowHover和onDragMove事件之间的同步

Question

我正在研究Java，SmartGWT 2.5＆amp; Mozilla FF 3.6.x.我正在使用Tree，TreeGrid＆amp;我的应用程序中的TreeNode。我有这些事件：

addDragMoveHandler(new DragMoveHandler() {
        @Override
        public void onDragMove(DragMoveEvent event) {
            // this is the Node which is moving to other parent
            // it's parent is instance of PageFolder
            Node movingNode = (Node) getSelectedRecord();
        }
    });

和

    addRowHoverHandler(new RowHoverHandler() {
        @Override
        public void onRowHover(RowHoverEvent event) {
            Node _node = (Node) event.getRecord();
            if (_node.getModel() instanceof PageFolder) {
                // this _node can be the parent of the moving node
                // and it will change it's color using it's attribute in getBaseStyle
                _node.setAttribute("canBeParent", true);
            }
        }
    });

我想在onDragMove中触发onRowHover，因为首先调用onDragMove，然后在它完成后调用onRowHover。如果节点可以是拖动节点的父节点，则应立即突出显示，而不是将节点放入其中。还有onDragStart和onFolderDroped事件。但我喜欢只在onRowHover上和onDragMove同步。

Answer 1

无需尝试触发onRowHover事件，只需从onDragMove处理程序调用相同的逻辑。