ui/vant
1
0
Fork 0
mirror of https://github.com/youzan/vant.git synced 2026-04-06 02:00:43 +08:00
Code Issues Actions 1 Packages Projects Releases Wiki Activity

[bugfix] compatible <body /> is the scene of the scrolling container (#3844)

Browse Source
This commit is contained in:
流采
2019-07-15 19:36:21 +08:00
committed by neverland
parent dbe56fd362
commit 511087bc74
6 changed files with 40 additions and 18 deletions
Download Patch File Download Diff File Expand all files Collapse all files

21
src/utils/dom/scroll.ts
View File

@@ -3,18 +3,26 @@ type ScrollElement = HTMLElement | Window;
// get nearest scroll element
// http://w3help.org/zh-cn/causes/SD9013
// http://stackoverflow.com/questions/17016740/onscroll-function-is-not-working-for-chrome
const overflowScrollReg = /scroll|auto/i;
export function getScrollEventTarget(element: HTMLElement, rootParent: ScrollElement = window) {
let node = element;
while (
node &&
node.tagName !== 'HTML' &&
node.tagName !== 'BODY' &&
node.nodeType === 1 &&
node !== rootParent
) {
const { overflowY } = window.getComputedStyle(node);
if (overflowY === 'scroll' || overflowY === 'auto') {
return node;
if (overflowScrollReg.test(<string>overflowY)) {
if (node.tagName !== 'BODY') {
return node;
}
// see: https://github.com/youzan/vant/issues/3823
const { overflowY: htmlOverflowY } = window.getComputedStyle(<Element>node.parentNode);
if (overflowScrollReg.test(<string>htmlOverflowY)) {
return node;
}
}
node = <HTMLElement>node.parentNode;
}
@@ -33,11 +41,16 @@ export function getRootScrollTop(): number {
return window.pageYOffset || document.documentElement.scrollTop || document.body.scrollTop || 0;
}
export function setRootScrollTop(value: number) {
setScrollTop(window, value);
setScrollTop(document.body, value);
}
// get distance from element top to page top
export function getElementTop(element: ScrollElement) {
return (
(element === window ? 0 : (<HTMLElement>element).getBoundingClientRect().top) +
getScrollTop(window)
getRootScrollTop()
);
}