mirror of https://github.com/vector-im/riot-web
fix jumping when unfilling the top while scrolling down
parent
ab49bc4fcf
commit
4bfdbe3094
|
@ -642,11 +642,17 @@ module.exports = React.createClass({
|
|||
// the currently filled piece of the timeline
|
||||
if (trackedNode) {
|
||||
const oldTop = trackedNode.offsetTop;
|
||||
// changing the height might change the scrollTop
|
||||
// if the new height is smaller than the scrollTop.
|
||||
// We calculate the diff that needs to be applied
|
||||
// ourselves, so be sure to measure the
|
||||
// scrollTop before changing the height.
|
||||
const preexistingScrollTop = sn.scrollTop;
|
||||
itemlist.style.height = `${newHeight}px`;
|
||||
const newTop = trackedNode.offsetTop;
|
||||
const topDiff = newTop - oldTop;
|
||||
sn.scrollTop = sn.scrollTop + topDiff;
|
||||
debuglog("updateHeight to", newHeight, topDiff);
|
||||
sn.scrollTop = preexistingScrollTop + topDiff;
|
||||
debuglog("updateHeight to", {newHeight, topDiff, preexistingScrollTop});
|
||||
}
|
||||
}
|
||||
},
|
||||
|
|
Loading…
Reference in New Issue