X-Git-Url: http://git.asbjorn.biz/?a=blobdiff_plain;f=src%2Foffset.js;h=a3776c201172da4379878a57eb93740d011d7b50;hb=9dc6e0c572b9c809a3a4c123071d96d48a01dd1c;hp=fbefd7a27f921d5a9b4585697f5cf9a335edda15;hpb=1d352084c4257217b0778f1ec3bb2e409411a4c3;p=jquery.git

diff --git a/src/offset.js b/src/offset.js
index fbefd7a..a3776c2 100644
--- a/src/offset.js
+++ b/src/offset.js
@@ -1,3 +1,8 @@
+(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];
@@ -70,12 +75,13 @@ if ( "getBoundingClientRect" in document.documentElement ) {
 				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;
 				}
 
-				prevOffsetParent = offsetParent, offsetParent = elem.offsetParent;
+				prevOffsetParent = offsetParent;
+				offsetParent = elem.offsetParent;
 			}
 
 			if ( jQuery.offset.subtractsBorderForOverflowNotVisible && computedStyle.overflow !== "visible" ) {
@@ -102,7 +108,7 @@ if ( "getBoundingClientRect" in document.documentElement ) {
 
 jQuery.offset = {
 	initialize: function() {
-		var body = document.body, container = document.createElement("div"), innerDiv, checkDiv, table, td, bodyMarginTop = parseFloat( jQuery.curCSS(body, "marginTop", true) ) || 0,
+		var body = document.body, container = document.createElement("div"), innerDiv, checkDiv, table, td, bodyMarginTop = parseFloat( jQuery.css(body, "marginTop") ) || 0,
 			html = "<div style='position:absolute;top:0;left:0;margin:0;border:5px solid #000;padding:0;width:1px;height:1px;'><div></div></div><table style='position:absolute;top:0;left:0;margin:0;border:5px solid #000;padding:0;width:1px;height:1px;' cellpadding='0' cellspacing='0'><tr><td></td></tr></table>";
 
 		jQuery.extend( container.style, { position: "absolute", top: 0, left: 0, margin: 0, border: 0, width: "1px", height: "1px", visibility: "hidden" } );
@@ -116,12 +122,16 @@ jQuery.offset = {
 		this.doesNotAddBorder = (checkDiv.offsetTop !== 5);
 		this.doesAddBorderForTableAndCells = (td.offsetTop === 5);
 
-		checkDiv.style.position = "fixed", checkDiv.style.top = "20px";
+		checkDiv.style.position = "fixed";
+		checkDiv.style.top = "20px";
+
 		// safari subtracts parent border width here which is 5px
 		this.supportsFixedPosition = (checkDiv.offsetTop === 20 || checkDiv.offsetTop === 15);
 		checkDiv.style.position = checkDiv.style.top = "";
 
-		innerDiv.style.overflow = "hidden", innerDiv.style.position = "relative";
+		innerDiv.style.overflow = "hidden";
+		innerDiv.style.position = "relative";
+
 		this.subtractsBorderForOverflowNotVisible = (checkDiv.offsetTop === -5);
 
 		this.doesNotIncludeMarginInBodyOffset = (body.offsetTop !== bodyMarginTop);
@@ -137,31 +147,46 @@ jQuery.offset = {
 		jQuery.offset.initialize();
 
 		if ( jQuery.offset.doesNotIncludeMarginInBodyOffset ) {
-			top  += parseFloat( jQuery.curCSS(body, "marginTop",  true) ) || 0;
-			left += parseFloat( jQuery.curCSS(body, "marginLeft", true) ) || 0;
+			top  += parseFloat( jQuery.css(body, "marginTop") ) || 0;
+			left += parseFloat( jQuery.css(body, "marginLeft") ) || 0;
 		}
 
 		return { top: top, left: left };
 	},
 	
 	setOffset: function( elem, options, i ) {
+		var position = jQuery.css( elem, "position" );
+
 		// set position first, in-case top/left are set even on static elem
-		if ( /static/.test( jQuery.curCSS( elem, "position" ) ) ) {
+		if ( position === "static" ) {
 			elem.style.position = "relative";
 		}
-		var curElem   = jQuery( elem ),
+
+		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;
+			curCSSTop = jQuery.css( elem, "top" ),
+			curCSSLeft = jQuery.css( elem, "left" ),
+			calculatePosition = (position === "absolute" && jQuery.inArray('auto', [curCSSTop, curCSSLeft]) > -1),
+			props = {}, curPosition = {}, curTop, curLeft;
+
+		// need to be able to calculate position if either top or left is auto and position is absolute
+		if ( calculatePosition ) {
+			curPosition = curElem.position();
+		}
+
+		curTop  = calculatePosition ? curPosition.top  : parseInt( curCSSTop,  10 ) || 0;
+		curLeft = calculatePosition ? curPosition.left : parseInt( curCSSLeft, 10 ) || 0;
 
 		if ( jQuery.isFunction( options ) ) {
 			options = options.call( elem, i, curOffset );
 		}
 
-		var props = {
-			top:  (options.top  - curOffset.top)  + curTop,
-			left: (options.left - curOffset.left) + curLeft
-		};
+		if (options.top != null) {
+			props.top = (options.top - curOffset.top) + curTop;
+		}
+		if (options.left != null) {
+			props.left = (options.left - curOffset.left) + curLeft;
+		}
 		
 		if ( "using" in options ) {
 			options.using.call( elem, props );
@@ -185,17 +210,17 @@ jQuery.fn.extend({
 
 		// 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
 		// are the same in Safari causing offset.left to incorrectly be 0
-		offset.top  -= parseFloat( jQuery.curCSS(elem, "marginTop",  true) ) || 0;
-		offset.left -= parseFloat( jQuery.curCSS(elem, "marginLeft", true) ) || 0;
+		offset.top  -= parseFloat( jQuery.css(elem, "marginTop") ) || 0;
+		offset.left -= parseFloat( jQuery.css(elem, "marginLeft") ) || 0;
 
 		// Add offsetParent borders
-		parentOffset.top  += parseFloat( jQuery.curCSS(offsetParent[0], "borderTopWidth",  true) ) || 0;
-		parentOffset.left += parseFloat( jQuery.curCSS(offsetParent[0], "borderLeftWidth", true) ) || 0;
+		parentOffset.top  += parseFloat( jQuery.css(offsetParent[0], "borderTopWidth") ) || 0;
+		parentOffset.left += parseFloat( jQuery.css(offsetParent[0], "borderLeftWidth") ) || 0;
 
 		// Subtract the two offsets
 		return {
@@ -207,7 +232,7 @@ jQuery.fn.extend({
 	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;
@@ -261,3 +286,5 @@ function getWindow( elem ) {
 			elem.defaultView || elem.parentWindow :
 			false;
 }
+
+})( jQuery );