chinwagsocial/app/javascript/mastodon/scroll.js
Eugen Rochko 8ee2eb5d2e Allow mounting arbitrary columns (#3207)
* Allow mounting arbitrary columns

* Refactor column headers, allow pinning/unpinning and moving columns around

* Collapse animation

* Re-introduce scroll to top

* Save column settings properly, do not display pin options in
single-column view, do not display collapse icon if there is
nothing to collapse

* Fix one instance of public timeline being closed closing the stream
Fix back buttons inconsistently sending you back to / even if history exists

* Getting started displays links to columns that are not mounted
2017-06-04 01:39:38 +02:00

29 lines
645 B
JavaScript

const easingOutQuint = (x, t, b, c, d) => c * ((t = t / d - 1) * t * t * t * t + 1) + b;
const scrollTop = (node) => {
const startTime = Date.now();
const offset = node.scrollTop;
const targetY = -offset;
const duration = 1000;
let interrupt = false;
const step = () => {
const elapsed = Date.now() - startTime;
const percentage = elapsed / duration;
if (percentage > 1 || interrupt) {
return;
}
node.scrollTop = easingOutQuint(0, elapsed, offset, targetY, duration);
requestAnimationFrame(step);
};
step();
return () => {
interrupt = true;
};
};
export default scrollTop;