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Fixed calculating if reply form is in viewport

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This commit is contained in:
Simon Backx 2022-08-11 15:16:31 +02:00
parent e130c2edcd
commit 24f384b0a2
1 changed files with 9 additions and 2 deletions
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11
apps/comments-ui/src/components/Form.js
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@ -158,15 +158,22 @@ const Form = (props) => {
if (props.isReply) {
timer = setTimeout(() => {
// Is the form already in view?
const formHeight = 100;
const formHeight = formEl.current.offsetHeight;
// Start y position of the form
const yMin = getScrollToPosition();
// Y position of the end of the form
const yMax = yMin + formHeight;
// Trigger scrolling when yMin and yMax is closer than this to the border of the viewport
const offset = 64;
const viewportHeight = window.innerHeight;
const viewPortYMin = window.scrollY;
const viewPortYMax = viewPortYMin + viewportHeight;
if (yMin < viewPortYMin || yMax > viewPortYMax) {
if (yMin - offset < viewPortYMin || yMax + offset > viewPortYMax) {
// Center the form in the viewport
const yCenter = (yMin + yMax) / 2;