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Fix #2867

pull/4003/head
zcyzcy88 2017-04-05 02:29:37 +08:00 committed by 杨奕
parent 658a91ee23
commit d0be75a467
1 changed files with 10 additions and 2 deletions
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12
src/utils/popper.js
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@ -517,9 +517,17 @@
var scrollParent = getScrollParent(this._popper); var scrollParent = getScrollParent(this._popper);
var offsetParentRect = getOffsetRect(offsetParent); var offsetParentRect = getOffsetRect(offsetParent);
// Thanks the fucking native API, `document.body.scrollTop` & `document.documentElement.scrollTop`
var getScrollTopValue = function (element) {
return element == document.body ? Math.max(document.documentElement.scrollTop, document.body.scrollTop) : element.scrollTop;
}
var getScrollLeftValue = function (element) {
return element == document.body ? Math.max(document.documentElement.scrollLeft, document.body.scrollLeft) : element.scrollLeft;
}
// if the popper is fixed we don't have to substract scrolling from the boundaries // if the popper is fixed we don't have to substract scrolling from the boundaries
var scrollTop = data.offsets.popper.position === 'fixed' ? 0 : scrollParent.scrollTop; var scrollTop = data.offsets.popper.position === 'fixed' ? 0 : getScrollTopValue(scrollParent);
var scrollLeft = data.offsets.popper.position === 'fixed' ? 0 : scrollParent.scrollLeft; var scrollLeft = data.offsets.popper.position === 'fixed' ? 0 : getScrollLeftValue(scrollParent);
boundaries = { boundaries = {
top: 0 - (offsetParentRect.top - scrollTop), top: 0 - (offsetParentRect.top - scrollTop),