(function( jQuery ) {
+var rtable = /^t(?:able|d|h)$/i,
+ rroot = /^(?:body|html)$/i;
+
if ( "getBoundingClientRect" in document.documentElement ) {
jQuery.fn.offset = function( options ) {
- var elem = this[0];
+ var elem = this[0], box;
- if ( options ) {
+ if ( options ) {
return this.each(function( i ) {
jQuery.offset.setOffset( this, options, i );
});
return jQuery.offset.bodyOffset( elem );
}
- var box = elem.getBoundingClientRect(),
- doc = elem.ownerDocument,
- body = doc.body,
- docElem = doc.documentElement,
+ try {
+ box = elem.getBoundingClientRect();
+ } catch(e) {}
+
+ var doc = elem.ownerDocument,
+ docElem = doc.documentElement;
+
+ // Make sure we're not dealing with a disconnected DOM node
+ if ( !box || !jQuery.contains( docElem, elem ) ) {
+ return box || { top: 0, left: 0 };
+ }
+
+ var body = doc.body,
win = getWindow(doc),
clientTop = docElem.clientTop || body.clientTop || 0,
clientLeft = docElem.clientLeft || body.clientLeft || 0,
jQuery.fn.offset = function( options ) {
var elem = this[0];
- if ( options ) {
+ if ( options ) {
return this.each(function( i ) {
jQuery.offset.setOffset( this, options, i );
});
jQuery.offset.initialize();
- var offsetParent = elem.offsetParent, prevOffsetParent = elem,
- doc = elem.ownerDocument, computedStyle, docElem = doc.documentElement,
- body = doc.body, defaultView = doc.defaultView,
+ var computedStyle,
+ offsetParent = elem.offsetParent,
+ prevOffsetParent = elem,
+ doc = elem.ownerDocument,
+ docElem = doc.documentElement,
+ body = doc.body,
+ defaultView = doc.defaultView,
prevComputedStyle = defaultView ? defaultView.getComputedStyle( elem, null ) : elem.currentStyle,
- top = elem.offsetTop, left = elem.offsetLeft;
+ top = elem.offsetTop,
+ left = elem.offsetLeft;
while ( (elem = elem.parentNode) && elem !== body && elem !== docElem ) {
if ( jQuery.offset.supportsFixedPosition && prevComputedStyle.position === "fixed" ) {
top += elem.offsetTop;
left += elem.offsetLeft;
- if ( jQuery.offset.doesNotAddBorder && !(jQuery.offset.doesAddBorderForTableAndCells && /^t(able|d|h)$/i.test(elem.nodeName)) ) {
+ if ( jQuery.offset.doesNotAddBorder && !(jQuery.offset.doesAddBorderForTableAndCells && rtable.test(elem.nodeName)) ) {
top += parseFloat( computedStyle.borderTopWidth ) || 0;
left += parseFloat( computedStyle.borderLeftWidth ) || 0;
}
},
bodyOffset: function( body ) {
- var top = body.offsetTop, left = body.offsetLeft;
+ var top = body.offsetTop,
+ left = body.offsetLeft;
jQuery.offset.initialize();
return { top: top, left: left };
},
-
+
setOffset: function( elem, options, i ) {
var position = jQuery.css( elem, "position" );
if (options.left != null) {
props.left = (options.left - curOffset.left) + curLeft;
}
-
+
if ( "using" in options ) {
options.using.call( elem, props );
} else {
// Get correct offsets
offset = this.offset(),
- parentOffset = /^body|html$/i.test(offsetParent[0].nodeName) ? { top: 0, left: 0 } : offsetParent.offset();
+ parentOffset = rroot.test(offsetParent[0].nodeName) ? { top: 0, left: 0 } : offsetParent.offset();
// Subtract element margins
// note: when an element has margin: auto the offsetLeft and marginLeft
offsetParent: function() {
return this.map(function() {
var offsetParent = this.offsetParent || document.body;
- while ( offsetParent && (!/^body|html$/i.test(offsetParent.nodeName) && jQuery.css(offsetParent, "position") === "static") ) {
+ while ( offsetParent && (!rroot.test(offsetParent.nodeName) && jQuery.css(offsetParent, "position") === "static") ) {
offsetParent = offsetParent.offsetParent;
}
return offsetParent;
jQuery.fn[ method ] = function(val) {
var elem = this[0], win;
-
+
if ( !elem ) {
return null;
}
});
function getWindow( elem ) {
- return ("scrollTo" in elem && elem.document) ?
+ return jQuery.isWindow( elem ) ?
elem :
elem.nodeType === 9 ?
elem.defaultView || elem.parentWindow :