1 | (function() |
---|
2 | { |
---|
3 | var _element = null; |
---|
4 | var _elementA = null; |
---|
5 | var _elementB = null; |
---|
6 | var _parent = null; |
---|
7 | |
---|
8 | function _configEvent(pObj, pEvent, pHandler) |
---|
9 | { |
---|
10 | if ( typeof pObj == 'object' ) |
---|
11 | { |
---|
12 | if ( pEvent.substring(0, 2) == 'on' ) |
---|
13 | pEvent = pEvent.substring(2, pEvent.length); |
---|
14 | |
---|
15 | if ( arguments.length == 3 ) |
---|
16 | { |
---|
17 | if ( pObj.addEventListener ) |
---|
18 | pObj.addEventListener(pEvent, pHandler, false); |
---|
19 | else if ( pObj.attachEvent ) |
---|
20 | pObj.attachEvent('on' + pEvent, pHandler); |
---|
21 | } |
---|
22 | else if ( arguments.length == 4 ) |
---|
23 | { |
---|
24 | if ( pObj.removeEventListener && pObj.removeEventListener != 'undefined') |
---|
25 | pObj.removeEventListener(pEvent, pHandler, false); |
---|
26 | else if ( pObj.detachEvent ) |
---|
27 | pObj.detachEvent('on' + pEvent, pHandler); |
---|
28 | } |
---|
29 | } |
---|
30 | } |
---|
31 | |
---|
32 | function _drag(e) |
---|
33 | { |
---|
34 | if (typeof e.preventDefault != 'undefined') |
---|
35 | e.preventDefault(); |
---|
36 | else |
---|
37 | e.onselectstart = new Function("return false;"); |
---|
38 | |
---|
39 | _element = ( e.target ) ? e.target : e.srcElement; |
---|
40 | |
---|
41 | if ( _element ) |
---|
42 | { |
---|
43 | _configEvent(_element, 'onmousemove', _mouseMove); |
---|
44 | _configEvent(top.document, 'onmousemove', _mouseMove); |
---|
45 | |
---|
46 | _configEvent(_element, 'onmouseup', _mouseUp); |
---|
47 | _configEvent(top.document, 'onmouseup', _mouseUp); |
---|
48 | } |
---|
49 | } |
---|
50 | |
---|
51 | function _elementShadow( pId ) |
---|
52 | { |
---|
53 | if( _elementA ) |
---|
54 | { |
---|
55 | var _elShadow = document.createElement("div"); |
---|
56 | _elShadow.id = _elementA.id + "__Shadow"; |
---|
57 | _elShadow.setAttribute("onselectstart" , "return false"); |
---|
58 | _elShadow.style.width = _elementA.style.width; |
---|
59 | _elShadow.style.height = _elementA.style.height; |
---|
60 | _elShadow.style.top = _elementA.style.top; |
---|
61 | _elShadow.style.left = _elementA.style.left; |
---|
62 | _elShadow.style.zIndex = _elementA.style.zIndex; |
---|
63 | _elShadow.className = "x-shadow_Div"; |
---|
64 | |
---|
65 | return _elShadow; |
---|
66 | } |
---|
67 | } |
---|
68 | |
---|
69 | function _load() |
---|
70 | { |
---|
71 | if( arguments.length > 0 ) |
---|
72 | { |
---|
73 | var pId = arguments[0]; |
---|
74 | |
---|
75 | _configEvent(document.getElementById( pId + "__draggable"), 'onmousedown', _mouseDownShadow); |
---|
76 | } |
---|
77 | } |
---|
78 | |
---|
79 | function _getMouseOffset(e, el) |
---|
80 | { |
---|
81 | var docPos = _getPosition(el); |
---|
82 | var mousePos = _mouseCoords(e); |
---|
83 | return { |
---|
84 | 'x' : mousePos.x - docPos.x, |
---|
85 | 'y' : mousePos.y - docPos.y |
---|
86 | }; |
---|
87 | } |
---|
88 | |
---|
89 | function _getPosition(_pObject) |
---|
90 | { |
---|
91 | var left = 0; |
---|
92 | var top = 0; |
---|
93 | |
---|
94 | while ( _pObject.offsetParent ) |
---|
95 | { |
---|
96 | left += _pObject.offsetLeft; |
---|
97 | top += _pObject.offsetTop; |
---|
98 | _pObject = _pObject.offsetParent; |
---|
99 | } |
---|
100 | |
---|
101 | left += _pObject.offsetLeft; |
---|
102 | top += _pObject.offsetTop; |
---|
103 | |
---|
104 | return { |
---|
105 | 'x' : left, |
---|
106 | 'y' : top |
---|
107 | }; |
---|
108 | } |
---|
109 | |
---|
110 | function _mouseCoords(ev) |
---|
111 | { |
---|
112 | var CoordX = ""; |
---|
113 | var CoordY = ""; |
---|
114 | |
---|
115 | if ( ev.pageX || ev.pageY ) |
---|
116 | return { |
---|
117 | 'x' : ev.pageX, |
---|
118 | 'y' : ev.pageY |
---|
119 | }; |
---|
120 | |
---|
121 | CoordX = ev.clientX + document.body.scrollLeft - document.body.clientLeft; |
---|
122 | CoordY = ev.clientY + document.body.scrollTop - document.body.clientTop; |
---|
123 | |
---|
124 | return { |
---|
125 | 'x' : CoordX, |
---|
126 | 'y' : CoordY |
---|
127 | }; |
---|
128 | } |
---|
129 | |
---|
130 | function _mouseMove(e) |
---|
131 | { |
---|
132 | if ( _element ) |
---|
133 | { |
---|
134 | if ( _element.mouseOffset == null ) |
---|
135 | _element.mouseOffset = _getMouseOffset(e, _element); |
---|
136 | |
---|
137 | var mousePos = _mouseCoords(e); |
---|
138 | |
---|
139 | var x = mousePos.x - _element.mouseOffset.x; |
---|
140 | var y = mousePos.y - _element.mouseOffset.y; |
---|
141 | _element.style.left = (( x < 0 ) ? 0 : x) + 'px'; |
---|
142 | _element.style.top = (( y < 0 ) ? 0 : y) + 'px'; |
---|
143 | } |
---|
144 | } |
---|
145 | |
---|
146 | function _mouseUp() |
---|
147 | { |
---|
148 | if ( _element ) |
---|
149 | { |
---|
150 | _mouseUpShadow(); |
---|
151 | |
---|
152 | _configEvent(_element, 'onmousemove', _mouseMove, 'remove'); |
---|
153 | _configEvent(top.document, 'onmousemove', _mouseMove, 'remove'); |
---|
154 | |
---|
155 | _configEvent(_element, 'onmouseup', _mouseUp, 'remove'); |
---|
156 | _configEvent(top.document, 'onmouseup', _mouseUp, 'remove'); |
---|
157 | |
---|
158 | _element.mouseOffset = null; |
---|
159 | _element = null; |
---|
160 | } |
---|
161 | } |
---|
162 | |
---|
163 | function _mouseDownShadow(e) |
---|
164 | { |
---|
165 | try |
---|
166 | { |
---|
167 | if( arguments.length > 0 ) |
---|
168 | { |
---|
169 | var _el = ( e.target ) ? e.target : e.srcElement; |
---|
170 | var _id = (_el.id.substring(0, _el.id.indexOf("__draggable"))); |
---|
171 | |
---|
172 | _elementA = document.getElementById( _id + "__parent"); |
---|
173 | _elementB = _elementShadow( _id + "__parent"); |
---|
174 | |
---|
175 | _elementA.style.left = '-1500px'; |
---|
176 | _parent = _elementA.parentNode; |
---|
177 | |
---|
178 | var _B = _parent.appendChild(_elementB); |
---|
179 | |
---|
180 | _configEvent( _elementB, 'onmouseup', _mouseUpShadow); |
---|
181 | _configEvent( _elementB, 'onmousemove', _drag); |
---|
182 | } |
---|
183 | |
---|
184 | }catch(e){} |
---|
185 | } |
---|
186 | |
---|
187 | function _mouseUpShadow() |
---|
188 | { |
---|
189 | try |
---|
190 | { |
---|
191 | _elementA.style.top = _elementB.style.top; |
---|
192 | _elementA.style.left = _elementB.style.left; |
---|
193 | |
---|
194 | var _B = _parent.removeChild(_elementB); |
---|
195 | |
---|
196 | _elementA = null; |
---|
197 | _elementB = null; |
---|
198 | _element = null; |
---|
199 | } |
---|
200 | catch(e){} |
---|
201 | } |
---|
202 | |
---|
203 | function _drag_drop(){} |
---|
204 | |
---|
205 | _drag_drop.prototype.set = _load; |
---|
206 | window._drag_drop = _drag_drop; |
---|
207 | |
---|
208 | })(); |
---|