diff options
Diffstat (limited to 'src/offset.js')
| -rw-r--r-- | src/offset.js | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/src/offset.js b/src/offset.js index dc7bb9557..4c34fd0ef 100644 --- a/src/offset.js +++ b/src/offset.js @@ -39,7 +39,8 @@ jQuery.offset = { calculatePosition = ( position === "absolute" || position === "fixed" ) && ( curCSSTop + curCSSLeft ).indexOf("auto") > -1; - // Need to be able to calculate position if either top or left is auto and position is either absolute or fixed + // Need to be able to calculate position if either + // top or left is auto and position is either absolute or fixed if ( calculatePosition ) { curPosition = curElem.position(); curTop = curPosition.top; @@ -96,8 +97,8 @@ jQuery.fn.extend({ return box; } + // Support: BlackBerry 5, iOS 3 (original iPhone) // If we don't have gBCR, just use 0,0 rather than error - // BlackBerry 5, iOS 3 (original iPhone) if ( typeof elem.getBoundingClientRect !== strundefined ) { box = elem.getBoundingClientRect(); } @@ -119,7 +120,7 @@ jQuery.fn.extend({ // Fixed elements are offset from window (parentOffset = {top:0, left: 0}, because it is its only offset parent if ( jQuery.css( elem, "position" ) === "fixed" ) { - // We assume that getBoundingClientRect is available when computed position is fixed + // Assume getBoundingClientRect is there when computed position is fixed offset = elem.getBoundingClientRect(); } else { @@ -182,16 +183,18 @@ jQuery.each( { scrollLeft: "pageXOffset", scrollTop: "pageYOffset" }, function( }; }); +// Support: Safari<7+, Chrome<37+ // Add the top/left cssHooks using jQuery.fn.position // Webkit bug: https://bugs.webkit.org/show_bug.cgi?id=29084 -// getComputedStyle returns percent when specified for top/left/bottom/right -// rather than make the css module depend on the offset module, we just check for it here +// Blink bug: https://code.google.com/p/chromium/issues/detail?id=229280 +// getComputedStyle returns percent when specified for top/left/bottom/right; +// rather than make the css module depend on the offset module, just check for it here jQuery.each( [ "top", "left" ], function( i, prop ) { jQuery.cssHooks[ prop ] = addGetHookIf( support.pixelPosition, function( elem, computed ) { if ( computed ) { computed = curCSS( elem, prop ); - // if curCSS returns percentage, fallback to offset + // If curCSS returns percentage, fallback to offset return rnumnonpx.test( computed ) ? jQuery( elem ).position()[ prop ] + "px" : computed; |