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-rw-r--r--src/offset.js119
1 files changed, 43 insertions, 76 deletions
diff --git a/src/offset.js b/src/offset.js
index 3f616baa1..d15a0d51a 100644
--- a/src/offset.js
+++ b/src/offset.js
@@ -1,25 +1,19 @@
-if ( "getBoundingClientRect" in document.documentElement ) {
+if ( "getBoundingClientRect" in document.documentElement )
jQuery.fn.offset = function() {
var elem = this[0];
- if ( !elem || !elem.ownerDocument ) { return null; }
- if ( elem === elem.ownerDocument.body ) {
- return jQuery.offset.bodyOffset( elem );
- }
-
+ if ( !elem || !elem.ownerDocument ) return null;
+ if ( elem === elem.ownerDocument.body ) return jQuery.offset.bodyOffset( elem );
var box = elem.getBoundingClientRect(), doc = elem.ownerDocument, body = doc.body, docElem = doc.documentElement,
clientTop = docElem.clientTop || body.clientTop || 0, clientLeft = docElem.clientLeft || body.clientLeft || 0,
top = box.top + (self.pageYOffset || jQuery.support.boxModel && docElem.scrollTop || body.scrollTop ) - clientTop,
left = box.left + (self.pageXOffset || jQuery.support.boxModel && docElem.scrollLeft || body.scrollLeft) - clientLeft;
return { top: top, left: left };
};
-} else {
+else
jQuery.fn.offset = function() {
var elem = this[0];
- if ( !elem || !elem.ownerDocument ) { return null; }
- if ( elem === elem.ownerDocument.body ) {
- return jQuery.offset.bodyOffset( elem );
- }
-
+ if ( !elem || !elem.ownerDocument ) return null;
+ if ( elem === elem.ownerDocument.body ) return jQuery.offset.bodyOffset( elem );
jQuery.offset.initialize();
var offsetParent = elem.offsetParent, prevOffsetParent = elem,
@@ -29,45 +23,32 @@ if ( "getBoundingClientRect" in document.documentElement ) {
top = elem.offsetTop, left = elem.offsetLeft;
while ( (elem = elem.parentNode) && elem !== body && elem !== docElem ) {
- if ( jQuery.offset.supportsFixedPosition && prevComputedStyle.position === "fixed" ) { break; }
-
+ if ( jQuery.offset.supportsFixedPosition && prevComputedStyle.position === "fixed" ) break;
computedStyle = defaultView.getComputedStyle(elem, null);
- top -= elem.scrollTop;
- left -= elem.scrollLeft;
-
+ top -= elem.scrollTop, left -= elem.scrollLeft;
if ( elem === offsetParent ) {
- top += elem.offsetTop;
- left += elem.offsetLeft;
-
- if ( jQuery.offset.doesNotAddBorder && !(jQuery.offset.doesAddBorderForTableAndCells && /^t(able|d|h)$/i.test(elem.nodeName)) ) {
- top += parseFloat( computedStyle.borderTopWidth ) || 0;
+ top += elem.offsetTop, left += elem.offsetLeft;
+ if ( jQuery.offset.doesNotAddBorder && !(jQuery.offset.doesAddBorderForTableAndCells && /^t(able|d|h)$/i.test(elem.tagName)) )
+ top += parseFloat( computedStyle.borderTopWidth ) || 0,
left += parseFloat( computedStyle.borderLeftWidth ) || 0;
- }
-
prevOffsetParent = offsetParent, offsetParent = elem.offsetParent;
}
-
- if ( jQuery.offset.subtractsBorderForOverflowNotVisible && computedStyle.overflow !== "visible" ) {
- top += parseFloat( computedStyle.borderTopWidth ) || 0;
+ if ( jQuery.offset.subtractsBorderForOverflowNotVisible && computedStyle.overflow !== "visible" )
+ top += parseFloat( computedStyle.borderTopWidth ) || 0,
left += parseFloat( computedStyle.borderLeftWidth ) || 0;
- }
-
prevComputedStyle = computedStyle;
}
- if ( prevComputedStyle.position === "relative" || prevComputedStyle.position === "static" ) {
- top += body.offsetTop;
+ if ( prevComputedStyle.position === "relative" || prevComputedStyle.position === "static" )
+ top += body.offsetTop,
left += body.offsetLeft;
- }
- if ( jQuery.offset.supportsFixedPosition && prevComputedStyle.position === "fixed" ) {
- top += Math.max( docElem.scrollTop, body.scrollTop );
+ if ( jQuery.offset.supportsFixedPosition && prevComputedStyle.position === "fixed" )
+ top += Math.max( docElem.scrollTop, body.scrollTop ),
left += Math.max( docElem.scrollLeft, body.scrollLeft );
- }
return { top: top, left: left };
};
-}
jQuery.offset = {
initialize: function() {
@@ -78,17 +59,14 @@ jQuery.offset = {
container.innerHTML = html;
body.insertBefore( container, body.firstChild );
- innerDiv = container.firstChild;
- checkDiv = innerDiv.firstChild;
- td = innerDiv.nextSibling.firstChild.firstChild;
+ innerDiv = container.firstChild, checkDiv = innerDiv.firstChild, td = innerDiv.nextSibling.firstChild.firstChild;
this.doesNotAddBorder = (checkDiv.offsetTop !== 5);
this.doesAddBorderForTableAndCells = (td.offsetTop === 5);
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 = '';
+ this.supportsFixedPosition = (checkDiv.offsetTop === 20 || checkDiv.offsetTop === 15); // safari subtracts parent border width here which is 5px
+ checkDiv.style.position = '', checkDiv.style.top = '';
innerDiv.style.overflow = 'hidden', innerDiv.style.position = 'relative';
this.subtractsBorderForOverflowNotVisible = (checkDiv.offsetTop === -5);
@@ -102,15 +80,11 @@ jQuery.offset = {
},
bodyOffset: function(body) {
- var top = body.offsetTop, left = body.offsetLeft;
-
jQuery.offset.initialize();
-
- if ( jQuery.offset.doesNotIncludeMarginInBodyOffset ) {
- top += parseFloat( jQuery.curCSS(body, 'marginTop', true) ) || 0;
+ var top = body.offsetTop, left = body.offsetLeft;
+ if ( jQuery.offset.doesNotIncludeMarginInBodyOffset )
+ top += parseFloat( jQuery.curCSS(body, 'marginTop', true) ) || 0,
left += parseFloat( jQuery.curCSS(body, 'marginLeft', true) ) || 0;
- }
-
return { top: top, left: left };
}
};
@@ -118,7 +92,7 @@ jQuery.offset = {
jQuery.fn.extend({
position: function() {
- if ( !this[0] ) { return null; }
+ if ( !this[0] ) return null;
var elem = this[0],
@@ -127,7 +101,7 @@ jQuery.fn.extend({
// Get correct offsets
offset = this.offset(),
- parentOffset = /^body|html$/i.test(offsetParent[0].nodeName) ? { top: 0, left: 0 } : offsetParent.offset();
+ parentOffset = /^body|html$/i.test(offsetParent[0].tagName) ? { top: 0, left: 0 } : offsetParent.offset();
// Subtract element margins
// note: when an element has margin: auto the offsetLeft and marginLeft
@@ -147,13 +121,10 @@ jQuery.fn.extend({
},
offsetParent: function() {
- return this.map(function(){
- var offsetParent = this.offsetParent || document.body;
- while ( offsetParent && (!/^body|html$/i.test(offsetParent.nodeName) && jQuery.css(offsetParent, 'position') === 'static') ) {
- offsetParent = offsetParent.offsetParent;
- }
- return offsetParent;
- });
+ var offsetParent = this[0].offsetParent || document.body;
+ while ( offsetParent && (!/^body|html$/i.test(offsetParent.tagName) && jQuery.css(offsetParent, 'position') === 'static') )
+ offsetParent = offsetParent.offsetParent;
+ return jQuery( offsetParent );
}
});
@@ -163,40 +134,36 @@ jQuery.each( ['Left', 'Top'], function(i, name) {
var method = 'scroll' + name;
jQuery.fn[ method ] = function(val) {
- if ( !this[0] ) { return null; }
+ var elem = this[0], win;
+
+ if ( !elem ) return null;
if ( val !== undefined ) {
// Set the scroll offset
return this.each(function() {
win = getWindow( this );
- if ( win ) {
+ win ?
win.scrollTo(
!i ? val : jQuery(win).scrollLeft(),
i ? val : jQuery(win).scrollTop()
- );
- } else {
+ ) :
this[ method ] = val;
- }
});
} else {
- var elem = this[0],
- win = getWindow( elem );
+ win = getWindow( elem );
// Return the scroll offset
- return win && 'pageXOffset' in win ?
- win[ i ? 'pageYOffset' : 'pageXOffset' ] ||
- jQuery.support.boxModel && win.document.documentElement[ method ] ||
+ return win ? ('pageXOffset' in win) ? win[ i ? 'pageYOffset' : 'pageXOffset' ] :
+ jQuery.support.boxModel && win.document.documentElement[ method ] ||
win.document.body[ method ] :
elem[ method ];
}
};
-
- function getWindow( elem ) {
- return ("scrollTo" in elem && elem.document) ?
- elem :
- elem.nodeType === 9 ?
- elem.defaultView || elem.parentWindow :
- false;
- }
});
+
+function getWindow( elem ) {
+ return ("scrollTo" in elem && elem.document) ? elem :
+ (elem.nodeName === "#document") ? elem.defaultView || elem.parentWindow :
+ false;
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-28 07:54:16 +0000