{"ast":null,"code":"import raf from \"rc-util/es/raf\";\nimport { useRef } from 'react';\nimport isFF from \"../utils/isFirefox\";\nimport useOriginScroll from \"./useOriginScroll\";\nexport default function useFrameWheel(inVirtual, isScrollAtTop, isScrollAtBottom, isScrollAtLeft, isScrollAtRight, horizontalScroll,\n/***\n * Return `true` when you need to prevent default event\n */\nonWheelDelta) {\n  var offsetRef = useRef(0);\n  var nextFrameRef = useRef(null);\n\n  // Firefox patch\n  var wheelValueRef = useRef(null);\n  var isMouseScrollRef = useRef(false);\n\n  // Scroll status sync\n  var originScroll = useOriginScroll(isScrollAtTop, isScrollAtBottom, isScrollAtLeft, isScrollAtRight);\n  function onWheelY(event, deltaY) {\n    raf.cancel(nextFrameRef.current);\n    offsetRef.current += deltaY;\n    wheelValueRef.current = deltaY;\n\n    // Do nothing when scroll at the edge, Skip check when is in scroll\n    if (originScroll(false, deltaY)) return;\n\n    // Proxy of scroll events\n    if (!isFF) {\n      event.preventDefault();\n    }\n    nextFrameRef.current = raf(function () {\n      // Patch a multiple for Firefox to fix wheel number too small\n      // ref: https://github.com/ant-design/ant-design/issues/26372#issuecomment-679460266\n      var patchMultiple = isMouseScrollRef.current ? 10 : 1;\n      onWheelDelta(offsetRef.current * patchMultiple);\n      offsetRef.current = 0;\n    });\n  }\n  function onWheelX(event, deltaX) {\n    onWheelDelta(deltaX, true);\n    if (!isFF) {\n      event.preventDefault();\n    }\n  }\n\n  // Check for which direction does wheel do. `sx` means `shift + wheel`\n  var wheelDirectionRef = useRef(null);\n  var wheelDirectionCleanRef = useRef(null);\n  function onWheel(event) {\n    if (!inVirtual) return;\n\n    // Wait for 2 frame to clean direction\n    raf.cancel(wheelDirectionCleanRef.current);\n    wheelDirectionCleanRef.current = raf(function () {\n      wheelDirectionRef.current = null;\n    }, 2);\n    var deltaX = event.deltaX,\n      deltaY = event.deltaY,\n      shiftKey = event.shiftKey;\n    var mergedDeltaX = deltaX;\n    var mergedDeltaY = deltaY;\n    if (wheelDirectionRef.current === 'sx' || !wheelDirectionRef.current && (shiftKey || false) && deltaY && !deltaX) {\n      mergedDeltaX = deltaY;\n      mergedDeltaY = 0;\n      wheelDirectionRef.current = 'sx';\n    }\n    var absX = Math.abs(mergedDeltaX);\n    var absY = Math.abs(mergedDeltaY);\n    if (wheelDirectionRef.current === null) {\n      wheelDirectionRef.current = horizontalScroll && absX > absY ? 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