X-Git-Url: http://git.asbjorn.biz/?a=blobdiff_plain;f=src%2Foffset.js;h=07a55cd33aa24d2aefc1b6f480f3ce674d6c2303;hb=e6fccd71031bd37300c1dfe79873b3d2529b4775;hp=4cd58cf7fdd5d1959e48f96641d5b3a77c393142;hpb=8f14ee1dd5c3bffc987f9a21a518f9901de66b54;p=jquery.git diff --git a/src/offset.js b/src/offset.js index 4cd58cf..07a55cd 100644 --- a/src/offset.js +++ b/src/offset.js @@ -10,7 +10,8 @@ jQuery.fn.offset = function() { offsetParent = elem.offsetParent, doc = elem.ownerDocument, safari2 = safari && parseInt(version) < 522 && !/adobeair/i.test(userAgent), - fixed = jQuery.css(elem, "position") == "fixed"; + css = jQuery.curCSS, + fixed = css(elem, "position") == "fixed"; // Use getBoundingClientRect if available if ( elem.getBoundingClientRect ) { @@ -45,7 +46,7 @@ jQuery.fn.offset = function() { border( offsetParent ); // Add the document scroll offsets if position is fixed on any offsetParent - if ( !fixed && jQuery.css(offsetParent, "position") == "fixed" ) + if ( !fixed && css(offsetParent, "position") == "fixed" ) fixed = true; // Set offsetChild to previous offsetParent unless it is the body element @@ -57,12 +58,12 @@ jQuery.fn.offset = function() { // Get parent scroll offsets while ( parent && parent.tagName && !/^body|html$/i.test(parent.tagName) ) { // Remove parent scroll UNLESS that parent is inline or a table to work around Opera inline/table scrollLeft/Top bug - if ( !/^inline|table.*$/i.test(jQuery.css(parent, "display")) ) + if ( !/^inline|table.*$/i.test(css(parent, "display")) ) // Subtract parent scroll offsets add( -parent.scrollLeft, -parent.scrollTop ); // Mozilla does not add the border for a parent that has overflow != visible - if ( mozilla && jQuery.css(parent, "overflow") != "visible" ) + if ( mozilla && css(parent, "overflow") != "visible" ) border( parent ); // Get next parent @@ -71,8 +72,8 @@ jQuery.fn.offset = function() { // Safari <= 2 doubles body offsets with a fixed position element/offsetParent or absolutely positioned offsetChild // Mozilla doubles body offsets with a non-absolutely positioned offsetChild - if ( (safari2 && (fixed || jQuery.css(offsetChild, "position") == "absolute")) || - (mozilla && jQuery.css(offsetChild, "position") != "absolute") ) + if ( (safari2 && (fixed || css(offsetChild, "position") == "absolute")) || + (mozilla && css(offsetChild, "position") != "absolute") ) add( -doc.body.offsetLeft, -doc.body.offsetTop ); // Add the document scroll offsets if position is fixed @@ -97,34 +98,68 @@ jQuery.fn.offset = function() { return results; }; -// Create innerHeight, innerWidth, outerHeight and outerWidth methods -jQuery.each(["Height", "Width"], function(i, name){ - var tl = name == "Height" ? "Top" : "Left", // top or left - br = name == "Height" ? "Bottom" : "Right"; // bottom or right - - // innerHeight and innerWidth - jQuery.fn["inner" + name] = function(){ - return this[ name.toLowerCase() ]() + - num(this, "padding" + tl) + - num(this, "padding" + br); - }; - - // outerHeight and outerWidth - jQuery.fn["outer" + name] = function(options) { - options = jQuery.extend({ margin: false }, options); +jQuery.fn.extend({ + position: function() { + var left = 0, top = 0, elem = this[0], offset, parentOffset, offsetParent, results; - return this["inner" + name]() + - num(this, "border" + tl + "Width") + - num(this, "border" + br + "Width") + - (options.margin ? - num(this, "margin" + tl) + num(this, "margin" + br) : - 0); - }; + if (elem) { + // Get *real* offsetParent + offsetParent = this.offsetParent(); + + // Get correct offsets + offset = this.offset(); + parentOffset = offsetParent.offset(); + + // Subtract element margins + offset.top -= parseInt( jQuery.curCSS(elem, 'marginTop', true) ) || 0; + offset.left -= parseInt( jQuery.curCSS(elem, 'marginLeft', true) ) || 0; + + // Add offsetParent borders + parentOffset.top += parseInt( jQuery.curCSS(offsetParent[0], 'borderTopWidth', true) ) || 0; + parentOffset.left += parseInt( jQuery.curCSS(offsetParent[0], 'borderLeftWidth', true) ) || 0; + + // Subtract the two offsets + results = { + top: offset.top - parentOffset.top, + left: offset.left - parentOffset.left + }; + } + + return results; + }, + offsetParent: function() { + var offsetParent = this[0].offsetParent; + while ( offsetParent && (!/^body|html$/i.test(offsetParent.tagName) && jQuery.css(offsetParent, 'position') == 'static') ) + offsetParent = offsetParent.offsetParent; + return jQuery(offsetParent); + } }); -function num(elem, prop) { - elem = elem.jquery ? elem[0] : elem; - return elem && parseInt( jQuery.curCSS(elem, prop, true) ) || 0; -} \ No newline at end of file + +// Create scrollLeft and scrollTop methods +jQuery.each( ['Left', 'Top'], function(i, name) { + jQuery.fn[ 'scroll' + name ] = function(val) { + if (!this[0]) return; + + return val != undefined ? + + // Set the scroll offset + this.each(function() { + this == window || this == document ? + window.scrollTo( + name == 'Left' ? val : jQuery(window)[ 'scrollLeft' ](), + name == 'Top' ? val : jQuery(window)[ 'scrollTop' ]() + ) : + this[ 'scroll' + name ] = val; + }) : + + // Return the scroll offset + this[0] == window || this[0] == document ? + self[ (name == 'Left' ? 'pageXOffset' : 'pageYOffset') ] || + jQuery.boxModel && document.documentElement[ 'scroll' + name ] || + document.body[ 'scroll' + name ] : + this[0][ 'scroll' + name ]; + }; +});