https://aussiefloyd.com/ScriptResource.axd?d=UB3ZqvkouF5ufp3A2BKmV…Ohj78ggHsualOJy5ciBN-sj3PDVU-RI1&t=51e37521

1// Name:        ReorderList.DraggableListItemBehavior.debug.js
2// Assembly:    AjaxControlToolkit
3// Version:     4.1.7.1213
4// FileVersion: 4.1.7.1213
5
6
7
8/// <reference name="MicrosoftAjax.debug.js" />
9/// <reference name="MicrosoftAjaxTimer.debug.js" />
10/// <reference name="MicrosoftAjaxWebForms.debug.js" />
11/// <reference path="../ExtenderBase/BaseScripts.js" />
12/// <reference path="../Common/Common.js" />
13
14
15Type.registerNamespace('Sys.Extended.UI');
16
17Sys.Extended.UI.DraggableListItem = function(e) {
18    Sys.Extended.UI.DraggableListItem.initializeBase(this, [e]);    
19    
20    this._data = null;
21    
22    this._handle = null;
23    this._dragVisualTemplate = null;
24    this._dragVisualTemplateInstance = null;
25    this._mouseDownHandler = null;
26}
27Sys.Extended.UI.DraggableListItem.prototype = {    
28
29
30
31   dispose : function() {
32        /// <summary>
33        /// Dispose the behavior
34        /// </summary>
35        var e = this.get_element();
36
37        
38        this.set_handle(null);
39
40        Sys.Extended.UI.DraggableListItem.callBaseMethod(this, 'dispose');
41    },
42
43    get_data : function() {
44        if (this._data == null) {
45            var dragSource = this._findDragSource();
46            if (dragSource != null && Sys.Extended.UI.DragDropList.IsValidDataType(dragSource.get_dragDataType())) {
47                return this.get_element();
48            }
49        }
50        
51        return this._data;
52    },
53    
54    set_data : function(value) {
55        if (this._data != value) {
56            this._data = value;
57            this.raisePropertyChanged('data');
58        }
59    },
60    
61    get_handle : function() {
62        return this._handle;
63    },
64    
65    set_handle : function(value) {
66        if (this._handle != null) {
67            $removeHandler(this._handle, "mousedown", this.get_mouseDownHandler());
68            this._handle.__draggableBehavior = null;
69        }
70
71        
72        if (value) {
73            if (value.element) {
74                value = value.element;
75            }            
76            this._handle = value;
77            this.raisePropertyChanged('handle');
78            this._handle.__draggableBehavior = this;
79            
80            $addHandler(this._handle, "mousedown", this.get_mouseDownHandler());
81            this._handle.__draggableBehavior = this;
82        }
83        else {
84            this._handle = null;
85        }
86    },
87    
88    get_mouseDownHandler : function() {
89        if (this._mouseDownHandler == null) {
90            this._mouseDownHandler = Function.createDelegate(this, this._onMouseDown);
91        }
92        return this._mouseDownHandler;
93    },
94        
95    get_dragVisualTemplate : function() {
96        return this._dragVisualTemplate;
97    },
98    
99    set_dragVisualTemplate : function(value) {
100        if (this._dragVisualTemplate != value) {
101            this._dragVisualTemplate = value;
102            this.raisePropertyChanged('dragVisualTemplate');
103        }
104    },
105    
106    
107    _onMouseDown : function(ev) {
108        window._event = ev.rawEvent;
109        this._handle.__draggableBehavior._mouseDownHandlerInternal(ev);
110    },
111    
112    _mouseDownHandlerInternal : function(ev) {
113        var ev = window.testEvent ? window.testEvent : ev;
114        if (ev.button <= 1) {
115            var dragSource = this._findDragSource();
116            if (dragSource != null) {
117
118                var dragVisual = this._createDragVisual();
119                dragSource.startDragDrop(this.get_element(), this.get_data(), dragVisual);
120                ev.returnValue = false;
121            }
122            else {
123
124            }
125        }
126        else {
127
128        }
129    },
130    
131    _createDragVisual : function() {
132        var ev = window.testEvent ? window.testEvent : window.event;
133        if (this._dragVisualTemplate != null) {
134            if (this._dragVisualTemplateInstance == null) {
135                this._dragVisualTemplateInstance = this._dragVisualTemplate.cloneElement();
136            }
137            else if (!Sys.UI.DragDropManager._getInstance().hasParent(this._dragVisualTemplateInstance)) {

138                this.get_element().appendChild(this._dragVisualTemplateInstance);
139            }
140            
141            var location = { x: ev.clientX, y: ev.clientY };
142            location = Sys.UI.DragDropManager._getInstance().addPoints(location, Sys.UI.DragDropManager._getInstance().getScrollOffset(document.body, true));
143            $common.setLocation(this._dragVisualTemplateInstance, location);
144        }
145        return this._dragVisualTemplateInstance;
146    },
147    
148    _findDragSource : function() {
149        var element = this.get_element();
150        while (element != null) {
151            if (element.__dragDropList != null) {
152                return element.__dragDropList;
153            }
154            element = element.parentNode;
155        }
156        return null;
157    }
158}
159Sys.Extended.UI.DraggableListItem.registerClass('Sys.Extended.UI.DraggableListItem', Sys.Extended.UI.BehaviorBase);