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43 lines
1.4 KiB
43 lines
1.4 KiB
import { useRef } from 'react';
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import raf from "rc-util/es/raf";
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import isFF from '../utils/isFirefox';
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import useOriginScroll from './useOriginScroll';
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export default function useFrameWheel(inVirtual, isScrollAtTop, isScrollAtBottom, onWheelDelta) {
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var offsetRef = useRef(0);
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var nextFrameRef = useRef(null); // Firefox patch
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var wheelValueRef = useRef(null);
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var isMouseScrollRef = useRef(false); // Scroll status sync
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var originScroll = useOriginScroll(isScrollAtTop, isScrollAtBottom);
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function onWheel(event) {
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if (!inVirtual) return;
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raf.cancel(nextFrameRef.current);
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var deltaY = event.deltaY;
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offsetRef.current += deltaY;
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wheelValueRef.current = deltaY; // Do nothing when scroll at the edge, Skip check when is in scroll
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if (originScroll(deltaY)) return; // Proxy of scroll events
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if (!isFF) {
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event.preventDefault();
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}
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nextFrameRef.current = raf(function () {
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// Patch a multiple for Firefox to fix wheel number too small
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// ref: https://github.com/ant-design/ant-design/issues/26372#issuecomment-679460266
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var patchMultiple = isMouseScrollRef.current ? 10 : 1;
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onWheelDelta(offsetRef.current * patchMultiple);
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offsetRef.current = 0;
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});
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} // A patch for firefox
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function onFireFoxScroll(event) {
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if (!inVirtual) return;
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isMouseScrollRef.current = event.detail === wheelValueRef.current;
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}
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return [onWheel, onFireFoxScroll];
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} |