Skip to content

fix jittery scrolling #40215

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Closed
wants to merge 6 commits into from
Closed

fix jittery scrolling #40215

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
6 commits
Select commit Hold shift + click to select a range
5322a0d
subsystem:doc
saltybuckets Sep 25, 2021
1d56881
formatting
saltybuckets Sep 27, 2021
c3bc1ae
move scrolling patch to another file
saltybuckets Sep 27, 2021
13863e6
linting
saltybuckets Sep 28, 2021
a6e35c8
Apply suggestions from code review
saltybuckets Sep 28, 2021
1678e16
lint
saltybuckets Sep 28, 2021
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
1 change: 0 additions & 1 deletion .eslintignore
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -6,5 +6,4 @@ test/message/esm_display_syntax_error.mjs
tools/icu
tools/lint-md/lint-md.mjs
benchmark/tmp
doc/**/*.js
!.eslintrc.js
61 changes: 61 additions & 0 deletions doc/api_assets/script.js
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -0,0 +1,61 @@
'use strict';

{
const eqIsh = (a, b, fuzz = 2) => {
return (Math.abs(a - b) <= fuzz);
};

const rectNotEQ = (a, b) => {
return (!eqIsh(a.width, b.width) ||
!eqIsh(a.height, b.height));
};

const spaced = new WeakMap();

const reserveSpace = (el, rect = el.getClientBoundingRect()) => {
const old = spaced.get(el);
if (!old || rectNotEQ(old, rect)) {
spaced.set(el, rect);
el.attributeStyleMap.set(
'contain-intrinsic-size',
`${rect.width}px ${rect.height}px`
);
}
};

const iObs = new IntersectionObserver(
(entries, o) => {
entries.forEach((entry) => {

reserveSpace(entry.target,
entry.boundingClientRect);
});
},
{ rootMargin: '500px 0px 500px 0px' }
);

const rObs = new ResizeObserver(
(entries, o) => {
entries.forEach((entry) => {
reserveSpace(entry.target, entry.contentRect);
});
}
);

const articles =
document.querySelectorAll('#apicontent>section');

articles.forEach((el) => {
iObs.observe(el);
rObs.observe(el);
});

requestAnimationFrame(() => {
requestAnimationFrame(() => {
articles[0].attributeStyleMap.set(
'content-visibility',
'auto'
);
});
});
}
1 change: 1 addition & 0 deletions doc/template.html
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -9,6 +9,7 @@
<link rel="stylesheet" href="assets/style.css">
<link rel="stylesheet" href="assets/hljs.css">
<link rel="canonical" href="https://nodejs.org/api/__FILENAME__.html">
<script src="assets/script.js" defer async></script>
</head>
<body class="alt apidoc" id="api-section-__FILENAME__">
<div id="content" class="clearfix">
Expand Down