|
0
|
1 /*
|
|
|
2 * jQuery UI Position 1.8.11
|
|
|
3 *
|
|
|
4 * Copyright 2011, AUTHORS.txt (http://jqueryui.com/about)
|
|
|
5 * Dual licensed under the MIT or GPL Version 2 licenses.
|
|
|
6 * http://jquery.org/license
|
|
|
7 *
|
|
|
8 * http://docs.jquery.com/UI/Position
|
|
|
9 */
|
|
|
10 (function( $, undefined ) {
|
|
|
11
|
|
|
12 $.ui = $.ui || {};
|
|
|
13
|
|
|
14 var horizontalPositions = /left|center|right/,
|
|
|
15 verticalPositions = /top|center|bottom/,
|
|
|
16 center = "center",
|
|
|
17 _position = $.fn.position,
|
|
|
18 _offset = $.fn.offset;
|
|
|
19
|
|
|
20 $.fn.position = function( options ) {
|
|
|
21 if ( !options || !options.of ) {
|
|
|
22 return _position.apply( this, arguments );
|
|
|
23 }
|
|
|
24
|
|
|
25 // make a copy, we don't want to modify arguments
|
|
|
26 options = $.extend( {}, options );
|
|
|
27
|
|
|
28 var target = $( options.of ),
|
|
|
29 targetElem = target[0],
|
|
|
30 collision = ( options.collision || "flip" ).split( " " ),
|
|
|
31 offset = options.offset ? options.offset.split( " " ) : [ 0, 0 ],
|
|
|
32 targetWidth,
|
|
|
33 targetHeight,
|
|
|
34 basePosition;
|
|
|
35
|
|
|
36 if ( targetElem.nodeType === 9 ) {
|
|
|
37 targetWidth = target.width();
|
|
|
38 targetHeight = target.height();
|
|
|
39 basePosition = { top: 0, left: 0 };
|
|
|
40 // TODO: use $.isWindow() in 1.9
|
|
|
41 } else if ( targetElem.setTimeout ) {
|
|
|
42 targetWidth = target.width();
|
|
|
43 targetHeight = target.height();
|
|
|
44 basePosition = { top: target.scrollTop(), left: target.scrollLeft() };
|
|
|
45 } else if ( targetElem.preventDefault ) {
|
|
|
46 // force left top to allow flipping
|
|
|
47 options.at = "left top";
|
|
|
48 targetWidth = targetHeight = 0;
|
|
|
49 basePosition = { top: options.of.pageY, left: options.of.pageX };
|
|
|
50 } else {
|
|
|
51 targetWidth = target.outerWidth();
|
|
|
52 targetHeight = target.outerHeight();
|
|
|
53 basePosition = target.offset();
|
|
|
54 }
|
|
|
55
|
|
|
56 // force my and at to have valid horizontal and veritcal positions
|
|
|
57 // if a value is missing or invalid, it will be converted to center
|
|
|
58 $.each( [ "my", "at" ], function() {
|
|
|
59 var pos = ( options[this] || "" ).split( " " );
|
|
|
60 if ( pos.length === 1) {
|
|
|
61 pos = horizontalPositions.test( pos[0] ) ?
|
|
|
62 pos.concat( [center] ) :
|
|
|
63 verticalPositions.test( pos[0] ) ?
|
|
|
64 [ center ].concat( pos ) :
|
|
|
65 [ center, center ];
|
|
|
66 }
|
|
|
67 pos[ 0 ] = horizontalPositions.test( pos[0] ) ? pos[ 0 ] : center;
|
|
|
68 pos[ 1 ] = verticalPositions.test( pos[1] ) ? pos[ 1 ] : center;
|
|
|
69 options[ this ] = pos;
|
|
|
70 });
|
|
|
71
|
|
|
72 // normalize collision option
|
|
|
73 if ( collision.length === 1 ) {
|
|
|
74 collision[ 1 ] = collision[ 0 ];
|
|
|
75 }
|
|
|
76
|
|
|
77 // normalize offset option
|
|
|
78 offset[ 0 ] = parseInt( offset[0], 10 ) || 0;
|
|
|
79 if ( offset.length === 1 ) {
|
|
|
80 offset[ 1 ] = offset[ 0 ];
|
|
|
81 }
|
|
|
82 offset[ 1 ] = parseInt( offset[1], 10 ) || 0;
|
|
|
83
|
|
|
84 if ( options.at[0] === "right" ) {
|
|
|
85 basePosition.left += targetWidth;
|
|
|
86 } else if ( options.at[0] === center ) {
|
|
|
87 basePosition.left += targetWidth / 2;
|
|
|
88 }
|
|
|
89
|
|
|
90 if ( options.at[1] === "bottom" ) {
|
|
|
91 basePosition.top += targetHeight;
|
|
|
92 } else if ( options.at[1] === center ) {
|
|
|
93 basePosition.top += targetHeight / 2;
|
|
|
94 }
|
|
|
95
|
|
|
96 basePosition.left += offset[ 0 ];
|
|
|
97 basePosition.top += offset[ 1 ];
|
|
|
98
|
|
|
99 return this.each(function() {
|
|
|
100 var elem = $( this ),
|
|
|
101 elemWidth = elem.outerWidth(),
|
|
|
102 elemHeight = elem.outerHeight(),
|
|
|
103 marginLeft = parseInt( $.curCSS( this, "marginLeft", true ) ) || 0,
|
|
|
104 marginTop = parseInt( $.curCSS( this, "marginTop", true ) ) || 0,
|
|
|
105 collisionWidth = elemWidth + marginLeft +
|
|
|
106 ( parseInt( $.curCSS( this, "marginRight", true ) ) || 0 ),
|
|
|
107 collisionHeight = elemHeight + marginTop +
|
|
|
108 ( parseInt( $.curCSS( this, "marginBottom", true ) ) || 0 ),
|
|
|
109 position = $.extend( {}, basePosition ),
|
|
|
110 collisionPosition;
|
|
|
111
|
|
|
112 if ( options.my[0] === "right" ) {
|
|
|
113 position.left -= elemWidth;
|
|
|
114 } else if ( options.my[0] === center ) {
|
|
|
115 position.left -= elemWidth / 2;
|
|
|
116 }
|
|
|
117
|
|
|
118 if ( options.my[1] === "bottom" ) {
|
|
|
119 position.top -= elemHeight;
|
|
|
120 } else if ( options.my[1] === center ) {
|
|
|
121 position.top -= elemHeight / 2;
|
|
|
122 }
|
|
|
123
|
|
|
124 // prevent fractions (see #5280)
|
|
|
125 position.left = Math.round( position.left );
|
|
|
126 position.top = Math.round( position.top );
|
|
|
127
|
|
|
128 collisionPosition = {
|
|
|
129 left: position.left - marginLeft,
|
|
|
130 top: position.top - marginTop
|
|
|
131 };
|
|
|
132
|
|
|
133 $.each( [ "left", "top" ], function( i, dir ) {
|
|
|
134 if ( $.ui.position[ collision[i] ] ) {
|
|
|
135 $.ui.position[ collision[i] ][ dir ]( position, {
|
|
|
136 targetWidth: targetWidth,
|
|
|
137 targetHeight: targetHeight,
|
|
|
138 elemWidth: elemWidth,
|
|
|
139 elemHeight: elemHeight,
|
|
|
140 collisionPosition: collisionPosition,
|
|
|
141 collisionWidth: collisionWidth,
|
|
|
142 collisionHeight: collisionHeight,
|
|
|
143 offset: offset,
|
|
|
144 my: options.my,
|
|
|
145 at: options.at
|
|
|
146 });
|
|
|
147 }
|
|
|
148 });
|
|
|
149
|
|
|
150 if ( $.fn.bgiframe ) {
|
|
|
151 elem.bgiframe();
|
|
|
152 }
|
|
|
153 elem.offset( $.extend( position, { using: options.using } ) );
|
|
|
154 });
|
|
|
155 };
|
|
|
156
|
|
|
157 $.ui.position = {
|
|
|
158 fit: {
|
|
|
159 left: function( position, data ) {
|
|
|
160 var win = $( window ),
|
|
|
161 over = data.collisionPosition.left + data.collisionWidth - win.width() - win.scrollLeft();
|
|
|
162 position.left = over > 0 ? position.left - over : Math.max( position.left - data.collisionPosition.left, position.left );
|
|
|
163 },
|
|
|
164 top: function( position, data ) {
|
|
|
165 var win = $( window ),
|
|
|
166 over = data.collisionPosition.top + data.collisionHeight - win.height() - win.scrollTop();
|
|
|
167 position.top = over > 0 ? position.top - over : Math.max( position.top - data.collisionPosition.top, position.top );
|
|
|
168 }
|
|
|
169 },
|
|
|
170
|
|
|
171 flip: {
|
|
|
172 left: function( position, data ) {
|
|
|
173 if ( data.at[0] === center ) {
|
|
|
174 return;
|
|
|
175 }
|
|
|
176 var win = $( window ),
|
|
|
177 over = data.collisionPosition.left + data.collisionWidth - win.width() - win.scrollLeft(),
|
|
|
178 myOffset = data.my[ 0 ] === "left" ?
|
|
|
179 -data.elemWidth :
|
|
|
180 data.my[ 0 ] === "right" ?
|
|
|
181 data.elemWidth :
|
|
|
182 0,
|
|
|
183 atOffset = data.at[ 0 ] === "left" ?
|
|
|
184 data.targetWidth :
|
|
|
185 -data.targetWidth,
|
|
|
186 offset = -2 * data.offset[ 0 ];
|
|
|
187 position.left += data.collisionPosition.left < 0 ?
|
|
|
188 myOffset + atOffset + offset :
|
|
|
189 over > 0 ?
|
|
|
190 myOffset + atOffset + offset :
|
|
|
191 0;
|
|
|
192 },
|
|
|
193 top: function( position, data ) {
|
|
|
194 if ( data.at[1] === center ) {
|
|
|
195 return;
|
|
|
196 }
|
|
|
197 var win = $( window ),
|
|
|
198 over = data.collisionPosition.top + data.collisionHeight - win.height() - win.scrollTop(),
|
|
|
199 myOffset = data.my[ 1 ] === "top" ?
|
|
|
200 -data.elemHeight :
|
|
|
201 data.my[ 1 ] === "bottom" ?
|
|
|
202 data.elemHeight :
|
|
|
203 0,
|
|
|
204 atOffset = data.at[ 1 ] === "top" ?
|
|
|
205 data.targetHeight :
|
|
|
206 -data.targetHeight,
|
|
|
207 offset = -2 * data.offset[ 1 ];
|
|
|
208 position.top += data.collisionPosition.top < 0 ?
|
|
|
209 myOffset + atOffset + offset :
|
|
|
210 over > 0 ?
|
|
|
211 myOffset + atOffset + offset :
|
|
|
212 0;
|
|
|
213 }
|
|
|
214 }
|
|
|
215 };
|
|
|
216
|
|
|
217 // offset setter from jQuery 1.4
|
|
|
218 if ( !$.offset.setOffset ) {
|
|
|
219 $.offset.setOffset = function( elem, options ) {
|
|
|
220 // set position first, in-case top/left are set even on static elem
|
|
|
221 if ( /static/.test( $.curCSS( elem, "position" ) ) ) {
|
|
|
222 elem.style.position = "relative";
|
|
|
223 }
|
|
|
224 var curElem = $( elem ),
|
|
|
225 curOffset = curElem.offset(),
|
|
|
226 curTop = parseInt( $.curCSS( elem, "top", true ), 10 ) || 0,
|
|
|
227 curLeft = parseInt( $.curCSS( elem, "left", true ), 10) || 0,
|
|
|
228 props = {
|
|
|
229 top: (options.top - curOffset.top) + curTop,
|
|
|
230 left: (options.left - curOffset.left) + curLeft
|
|
|
231 };
|
|
|
232
|
|
|
233 if ( 'using' in options ) {
|
|
|
234 options.using.call( elem, props );
|
|
|
235 } else {
|
|
|
236 curElem.css( props );
|
|
|
237 }
|
|
|
238 };
|
|
|
239
|
|
|
240 $.fn.offset = function( options ) {
|
|
|
241 var elem = this[ 0 ];
|
|
|
242 if ( !elem || !elem.ownerDocument ) { return null; }
|
|
|
243 if ( options ) {
|
|
|
244 return this.each(function() {
|
|
|
245 $.offset.setOffset( this, options );
|
|
|
246 });
|
|
|
247 }
|
|
|
248 return _offset.call( this );
|
|
|
249 };
|
|
|
250 }
|
|
|
251
|
|
|
252 }( jQuery ));
|
