if ( "getBoundingClientRect" in document.documentElement ) {
- jQuery.fn.offset = function() {
+ jQuery.fn.offset = function( options ) {
var elem = this[0];
if ( !elem || !elem.ownerDocument ) { return null; }
+ if ( options ) {
+ return this.each(function() {
+ jQuery.offset.setOffset( this, options );
+ });
+ }
if ( elem === elem.ownerDocument.body ) {
return jQuery.offset.bodyOffset( elem );
}
return { top: top, left: left };
};
} else {
- jQuery.fn.offset = function() {
+ jQuery.fn.offset = function( options ) {
var elem = this[0];
if ( !elem || !elem.ownerDocument ) { return null; }
+ if ( options ) {
+ return this.each(function() {
+ jQuery.offset.setOffset( this, options );
+ });
+ }
if ( elem === elem.ownerDocument.body ) {
return jQuery.offset.bodyOffset( elem );
}
var offsetParent = elem.offsetParent, prevOffsetParent = elem,
doc = elem.ownerDocument, computedStyle, docElem = doc.documentElement,
body = doc.body, defaultView = doc.defaultView,
- prevComputedStyle = defaultView.getComputedStyle(elem, null),
+ prevComputedStyle = defaultView ? defaultView.getComputedStyle( elem, null ) : elem.currentStyle,
top = elem.offsetTop, left = elem.offsetLeft;
while ( (elem = elem.parentNode) && elem !== body && elem !== docElem ) {
if ( jQuery.offset.supportsFixedPosition && prevComputedStyle.position === "fixed" ) { break; }
- computedStyle = defaultView.getComputedStyle(elem, null);
- top -= elem.scrollTop;
+ computedStyle = defaultView ? defaultView.getComputedStyle(elem, null) : elem.currentStyle;
+ top -= elem.scrollTop;
left -= elem.scrollLeft;
if ( elem === offsetParent ) {
- top += elem.offsetTop;
+ top += elem.offsetTop;
left += elem.offsetLeft;
if ( jQuery.offset.doesNotAddBorder && !(jQuery.offset.doesAddBorderForTableAndCells && /^t(able|d|h)$/i.test(elem.nodeName)) ) {
this.doesNotIncludeMarginInBodyOffset = (body.offsetTop !== bodyMarginTop);
body.removeChild( container );
- jQuery.offset.initialize = function(){};
-
body = container = innerDiv = checkDiv = table = td = null;
+ jQuery.offset.initialize = function(){};
},
- bodyOffset: function(body) {
+ bodyOffset: function( body ) {
var top = body.offsetTop, left = body.offsetLeft;
jQuery.offset.initialize();
}
return { top: top, left: left };
+ },
+
+ setOffset: function( elem, options ) {
+ // set position first, in-case top/left are set even on static elem
+ if ( /static/.test( jQuery.curCSS( elem, 'position' ) ) ) {
+ elem.style.position = 'relative';
+ }
+ var curElem = jQuery( elem ),
+ curOffset = curElem.offset(),
+ curTop = parseInt( jQuery.curCSS( elem, 'top', true ), 10 ) || 0,
+ curLeft = parseInt( jQuery.curCSS( elem, 'left', true ), 10) || 0,
+ props = {
+ top: (options.top - curOffset.top) + curTop,
+ left: (options.left - curOffset.left) + curLeft
+ };
+
+ if ( 'using' in options ) {
+ options.using.call( elem, props );
+ } else {
+ curElem.css( props );
+ }
}
};