mirror of https://github.com/chylex/TweetDuck.git
36 lines
826 B
JavaScript
36 lines
826 B
JavaScript
/**
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* Works around broken smooth scrolling in Chromium/CEF.
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*/
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export default function() {
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let targetY = 0;
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let delay = -1;
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let scrolling = false;
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window.TDGF_scrollSmoothly = function(delta) {
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targetY += delta;
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if (targetY < 0) {
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targetY = 0;
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}
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else if (targetY > document.body.offsetHeight - window.innerHeight) {
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targetY = document.body.offsetHeight - window.innerHeight;
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}
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const prevY = window.scrollY;
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window.scrollTo({ top: targetY, left: window.scrollX, behavior: "smooth" });
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scrolling = true;
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const diff = Math.abs(targetY - prevY);
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const time = 420 * (Math.log(diff + 510) - 6);
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clearTimeout(delay);
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delay = setTimeout(() => scrolling = false, time);
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};
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window.addEventListener("scroll", function() {
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if (!scrolling) {
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targetY = window.scrollY;
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}
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});
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};
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