TreeDragZone.js
资源名称:ext-3.0.0.zip [点击查看]
上传用户:shuoshiled
上传日期:2018-01-28
资源大小:10124k
文件大小:2k
源码类别:
中间件编程
开发平台:
JavaScript
- /*! * Ext JS Library 3.0.0 * Copyright(c) 2006-2009 Ext JS, LLC * licensing@extjs.com * http://www.extjs.com/license */ /**
- * @class Ext.tree.TreeDragZone
- * @extends Ext.dd.DragZone
- * @constructor
- * @param {String/HTMLElement/Element} tree The {@link Ext.tree.TreePanel} for which to enable dragging
- * @param {Object} config
- */
- if(Ext.dd.DragZone){
- Ext.tree.TreeDragZone = function(tree, config){
- Ext.tree.TreeDragZone.superclass.constructor.call(this, tree.innerCt, config);
- /**
- * The TreePanel for this drag zone
- * @type Ext.tree.TreePanel
- * @property
- */
- this.tree = tree;
- };
- Ext.extend(Ext.tree.TreeDragZone, Ext.dd.DragZone, {
- /**
- * @cfg {String} ddGroup
- * A named drag drop group to which this object belongs. If a group is specified, then this object will only
- * interact with other drag drop objects in the same group (defaults to 'TreeDD').
- */
- ddGroup : "TreeDD",
- // private
- onBeforeDrag : function(data, e){
- var n = data.node;
- return n && n.draggable && !n.disabled;
- },
- // private
- onInitDrag : function(e){
- var data = this.dragData;
- this.tree.getSelectionModel().select(data.node);
- this.tree.eventModel.disable();
- this.proxy.update("");
- data.node.ui.appendDDGhost(this.proxy.ghost.dom);
- this.tree.fireEvent("startdrag", this.tree, data.node, e);
- },
- // private
- getRepairXY : function(e, data){
- return data.node.ui.getDDRepairXY();
- },
- // private
- onEndDrag : function(data, e){
- this.tree.eventModel.enable.defer(100, this.tree.eventModel);
- this.tree.fireEvent("enddrag", this.tree, data.node, e);
- },
- // private
- onValidDrop : function(dd, e, id){
- this.tree.fireEvent("dragdrop", this.tree, this.dragData.node, dd, e);
- this.hideProxy();
- },
- // private
- beforeInvalidDrop : function(e, id){
- // this scrolls the original position back into view
- var sm = this.tree.getSelectionModel();
- sm.clearSelections();
- sm.select(this.dragData.node);
- },
- // private
- afterRepair : function(){
- if (Ext.enableFx && this.tree.hlDrop) {
- Ext.Element.fly(this.dragData.ddel).highlight(this.hlColor || "c3daf9");
- }
- this.dragging = false;
- }
- });
- }