git.r.bdr.sh - rbdr/dotfiles/blob - atom/packages/ex-mode/node_modules/space-pen/node_modules/jquery/src/offset.js

   1 define([
   2         "./core",
   3         "./var/strundefined",
   4         "./core/access",
   5         "./css/var/rnumnonpx",
   6         "./css/curCSS",
   7         "./css/addGetHookIf",
   8         "./css/support",
   9
  10         "./core/init",
  11         "./css",
  12         "./selector" // contains
  13 ], function( jQuery, strundefined, access, rnumnonpx, curCSS, addGetHookIf, support ) {
  14
  15 var docElem = window.document.documentElement;
  16
  17 /**
  18  * Gets a window from an element
  19  */
  20 function getWindow( elem ) {
  21         return jQuery.isWindow( elem ) ? elem : elem.nodeType === 9 && elem.defaultView;
  22 }
  23
  24 jQuery.offset = {
  25         setOffset: function( elem, options, i ) {
  26                 var curPosition, curLeft, curCSSTop, curTop, curOffset, curCSSLeft, calculatePosition,
  27                         position = jQuery.css( elem, "position" ),
  28                         curElem = jQuery( elem ),
  29                         props = {};
  30
  31                 // Set position first, in-case top/left are set even on static elem
  32                 if ( position === "static" ) {
  33                         elem.style.position = "relative";
  34                 }
  35
  36                 curOffset = curElem.offset();
  37                 curCSSTop = jQuery.css( elem, "top" );
  38                 curCSSLeft = jQuery.css( elem, "left" );
  39                 calculatePosition = ( position === "absolute" || position === "fixed" ) &&
  40                         ( curCSSTop + curCSSLeft ).indexOf("auto") > -1;
  41
  42                 // Need to be able to calculate position if either
  43                 // top or left is auto and position is either absolute or fixed
  44                 if ( calculatePosition ) {
  45                         curPosition = curElem.position();
  46                         curTop = curPosition.top;
  47                         curLeft = curPosition.left;
  48
  49                 } else {
  50                         curTop = parseFloat( curCSSTop ) || 0;
  51                         curLeft = parseFloat( curCSSLeft ) || 0;
  52                 }
  53
  54                 if ( jQuery.isFunction( options ) ) {
  55                         options = options.call( elem, i, curOffset );
  56                 }
  57
  58                 if ( options.top != null ) {
  59                         props.top = ( options.top - curOffset.top ) + curTop;
  60                 }
  61                 if ( options.left != null ) {
  62                         props.left = ( options.left - curOffset.left ) + curLeft;
  63                 }
  64
  65                 if ( "using" in options ) {
  66                         options.using.call( elem, props );
  67
  68                 } else {
  69                         curElem.css( props );
  70                 }
  71         }
  72 };
  73
  74 jQuery.fn.extend({
  75         offset: function( options ) {
  76                 if ( arguments.length ) {
  77                         return options === undefined ?
  78                                 this :
  79                                 this.each(function( i ) {
  80                                         jQuery.offset.setOffset( this, options, i );
  81                                 });
  82                 }
  83
  84                 var docElem, win,
  85                         elem = this[ 0 ],
  86                         box = { top: 0, left: 0 },
  87                         doc = elem && elem.ownerDocument;
  88
  89                 if ( !doc ) {
  90                         return;
  91                 }
  92
  93                 docElem = doc.documentElement;
  94
  95                 // Make sure it's not a disconnected DOM node
  96                 if ( !jQuery.contains( docElem, elem ) ) {
  97                         return box;
  98                 }
  99
 100                 // Support: BlackBerry 5, iOS 3 (original iPhone)
 101                 // If we don't have gBCR, just use 0,0 rather than error
 102                 if ( typeof elem.getBoundingClientRect !== strundefined ) {
 103                         box = elem.getBoundingClientRect();
 104                 }
 105                 win = getWindow( doc );
 106                 return {
 107                         top: box.top + win.pageYOffset - docElem.clientTop,
 108                         left: box.left + win.pageXOffset - docElem.clientLeft
 109                 };
 110         },
 111
 112         position: function() {
 113                 if ( !this[ 0 ] ) {
 114                         return;
 115                 }
 116
 117                 var offsetParent, offset,
 118                         elem = this[ 0 ],
 119                         parentOffset = { top: 0, left: 0 };
 120
 121                 // Fixed elements are offset from window (parentOffset = {top:0, left: 0}, because it is its only offset parent
 122                 if ( jQuery.css( elem, "position" ) === "fixed" ) {
 123                         // Assume getBoundingClientRect is there when computed position is fixed
 124                         offset = elem.getBoundingClientRect();
 125
 126                 } else {
 127                         // Get *real* offsetParent
 128                         offsetParent = this.offsetParent();
 129
 130                         // Get correct offsets
 131                         offset = this.offset();
 132                         if ( !jQuery.nodeName( offsetParent[ 0 ], "html" ) ) {
 133                                 parentOffset = offsetParent.offset();
 134                         }
 135
 136                         // Add offsetParent borders
 137                         parentOffset.top += jQuery.css( offsetParent[ 0 ], "borderTopWidth", true );
 138                         parentOffset.left += jQuery.css( offsetParent[ 0 ], "borderLeftWidth", true );
 139                 }
 140
 141                 // Subtract parent offsets and element margins
 142                 return {
 143                         top: offset.top - parentOffset.top - jQuery.css( elem, "marginTop", true ),
 144                         left: offset.left - parentOffset.left - jQuery.css( elem, "marginLeft", true )
 145                 };
 146         },
 147
 148         offsetParent: function() {
 149                 return this.map(function() {
 150                         var offsetParent = this.offsetParent || docElem;
 151
 152                         while ( offsetParent && ( !jQuery.nodeName( offsetParent, "html" ) && jQuery.css( offsetParent, "position" ) === "static" ) ) {
 153                                 offsetParent = offsetParent.offsetParent;
 154                         }
 155
 156                         return offsetParent || docElem;
 157                 });
 158         }
 159 });
 160
 161 // Create scrollLeft and scrollTop methods
 162 jQuery.each( { scrollLeft: "pageXOffset", scrollTop: "pageYOffset" }, function( method, prop ) {
 163         var top = "pageYOffset" === prop;
 164
 165         jQuery.fn[ method ] = function( val ) {
 166                 return access( this, function( elem, method, val ) {
 167                         var win = getWindow( elem );
 168
 169                         if ( val === undefined ) {
 170                                 return win ? win[ prop ] : elem[ method ];
 171                         }
 172
 173                         if ( win ) {
 174                                 win.scrollTo(
 175                                         !top ? val : window.pageXOffset,
 176                                         top ? val : window.pageYOffset
 177                                 );
 178
 179                         } else {
 180                                 elem[ method ] = val;
 181                         }
 182                 }, method, val, arguments.length, null );
 183         };
 184 });
 185
 186 // Support: Safari<7+, Chrome<37+
 187 // Add the top/left cssHooks using jQuery.fn.position
 188 // Webkit bug: https://bugs.webkit.org/show_bug.cgi?id=29084
 189 // Blink bug: https://code.google.com/p/chromium/issues/detail?id=229280
 190 // getComputedStyle returns percent when specified for top/left/bottom/right;
 191 // rather than make the css module depend on the offset module, just check for it here
 192 jQuery.each( [ "top", "left" ], function( i, prop ) {
 193         jQuery.cssHooks[ prop ] = addGetHookIf( support.pixelPosition,
 194                 function( elem, computed ) {
 195                         if ( computed ) {
 196                                 computed = curCSS( elem, prop );
 197                                 // If curCSS returns percentage, fallback to offset
 198                                 return rnumnonpx.test( computed ) ?
 199                                         jQuery( elem ).position()[ prop ] + "px" :
 200                                         computed;
 201                         }
 202                 }
 203         );
 204 });
 205
 206 return jQuery;
 207 });