/* eslint-disable */
import './index.less';
const throttleTime = 1;
function _interopDefault(e) {
  return e && "object" == typeof e && "default" in e ? e.
      default:
    e
}
function __rest(e, t) {
  var r = {};
  for (var o in e) Object.prototype.hasOwnProperty.call(e, o) && t.indexOf(o) < 0 && (r[o] = e[o]);
  if (null != e && "function" == typeof Object.getOwnPropertySymbols) for (var n = 0,
                                                                             o = Object.getOwnPropertySymbols(e); n < o.length; n++) t.indexOf(o[n]) < 0 && Object.prototype.propertyIsEnumerable.call(e, o[n]) && (r[o[n]] = e[o[n]]);
  return r
}
function getRawTag(e) {
  var t = hasOwnProperty.call(e, symToStringTag),
    r = e[symToStringTag];
  try {
    e[symToStringTag] = void 0;
    var o = !0
  } catch(e) {}
  var n = nativeObjectToString.call(e);
  return o && (t ? e[symToStringTag] = r: delete e[symToStringTag]),
    n
}
function objectToString(e) {
  return nativeObjectToString$1.call(e)
}
function baseGetTag(e) {
  return null == e ? void 0 === e ? undefinedTag: nullTag: symToStringTag$1 && symToStringTag$1 in Object(e) ? getRawTag(e) : objectToString(e)
}
function isObjectLike(e) {
  return null != e && "object" == typeof e
}
function isSymbol(e) {
  return "symbol" == typeof e || isObjectLike(e) && baseGetTag(e) == symbolTag
}
function trimmedEndIndex(e) {
  for (var t = e.length; t--&&reWhitespace.test(e.charAt(t)););
  return t
}
function baseTrim(e) {
  return e ? e.slice(0, trimmedEndIndex(e) + 1).replace(reTrimStart, "") : e
}
function isObject(e) {
  var t = typeof e;
  return null != e && ("object" == t || "function" == t)
}
function toNumber(e) {
  if ("number" == typeof e) return e;
  if (isSymbol(e)) return NAN;
  if (isObject(e)) {
    var t = "function" == typeof e.valueOf ? e.valueOf() : e;
    e = isObject(t) ? t + "": t
  }
  if ("string" != typeof e) return 0 === e ? e: +e;
  e = baseTrim(e);
  var r = reIsBinary.test(e);
  return r || reIsOctal.test(e) ? freeParseInt(e.slice(2), r ? 2 : 8) : reIsBadHex.test(e) ? NAN: +e
}
function debounce(e, t, r) {
  function o(t) {
    var r = f,
      o = v;
    return f = v = void 0,
      T = t,
      p = e.apply(o, r)
  }
  function n(e) {
    return T = e,
      b = setTimeout(a, t),
      y ? o(e) : p
  }
  function i(e) {
    var r = e - T,
      o = t - (e - h);
    return _ ? nativeMin(o, g - r) : o
  }
  function l(e) {
    var r = e - h,
      o = e - T;
    return void 0 === h || r >= t || r < 0 || _ && o >= g
  }
  function a() {
    var e = now();
    if (l(e)) return c(e);
    b = setTimeout(a, i(e))
  }
  function c(e) {
    return b = void 0,
      m && f ? o(e) : (f = v = void 0, p)
  }
  function s() {
    void 0 !== b && clearTimeout(b),
      T = 0,
      f = h = v = b = void 0
  }
  function u() {
    return void 0 === b ? p: c(now())
  }
  function d() {
    var e = now(),
      r = l(e);
    if (f = arguments, v = this, h = e, r) {
      if (void 0 === b) return n(h);
      if (_) return clearTimeout(b),
        b = setTimeout(a, t),
        o(h)
    }
    return void 0 === b && (b = setTimeout(a, t)),
      p
  }
  var f, v, g, p, b, h, T = 0,
    y = !1,
    _ = !1,
    m = !0;
  if ("function" != typeof e) throw new TypeError(FUNC_ERROR_TEXT);
  return t = toNumber(t) || 0,
  isObject(r) && (y = !!r.leading, g = (_ = "maxWait" in r) ? nativeMax(toNumber(r.maxWait) || 0, t) : g, m = "trailing" in r ? !!r.trailing: m),
    d.cancel = s,
    d.flush = u,
    d
}
function isNumber(e) {
  return "number" == typeof e || isObjectLike(e) && baseGetTag(e) == numberTag
}
function throttle(e, t, r) {
  var o = !0,
    n = !0;
  if ("function" != typeof e) throw new TypeError(FUNC_ERROR_TEXT$1);
  return isObject(r) && (o = "leading" in r ? !!r.leading: o, n = "trailing" in r ? !!r.trailing: n),
    debounce(e, t, {
      leading: o,
      maxWait: t,
      trailing: n
    })
}
function styleInject(e, t) {
  void 0 === t && (t = {});
  var r = t.insertAt;
  if (e && "undefined" != typeof document) {
    var o = document.head || document.getElementsByTagName("head")[0],
      n = document.createElement("style");
    n.type = "text/css",
      "top" === r && o.firstChild ? o.insertBefore(n, o.firstChild) : o.appendChild(n),
      n.styleSheet ? n.styleSheet.cssText = e: n.appendChild(document.createTextNode(e))
  }
}
function reducer(e, t) {
  switch (t.type) {
    case "changeTrs":
      var r = t.curScrollTop,
        o = t.scrollHeight,
        n = t.tableScrollY;
      return e.scrollHeight && r > e.scrollHeight && (r = e.scrollHeight),
        __assign(__assign({},
          e), {
          curScrollTop: r,
          scrollHeight: o,
          tableScrollY: n
        });
    case "initHeight":
      var i = t.rowHeight;
      return __assign(__assign({},
        e), {
        rowHeight: i
      });
    case "reset":
      return __assign(__assign({},
        e), {
        curScrollTop: (null === t || void 0 === t ? void 0 : t.ifScrollTopClear) ? 0 : e.curScrollTop,
        scrollHeight: 0
      });
    default:
      throw new Error
  }
}
function VCell(e) {
  var t = e.children,
    r = __rest(e, ["children"]);
  return React__default.createElement("td", __assign({},
    r), React__default.createElement("div", null, t))
}
function VRow(e, t) {
  var r = React.useContext(ScrollContext),
    o = r.dispatch,
    n = r.rowHeight,
    i = r.totalLen,
    l = r.vid,
    a = e.children,
    c = e.style,
    s = __rest(e, ["children", "style"]),
    u = React.useRef(null);
  return React.useEffect(function() { !
      function(e) {
        var t, r, a;
        if ((null === (t = null === e || void 0 === e ? void 0 : e.current) || void 0 === t ? void 0 : t.offsetHeight) && !n && i) {
          var c = null !== (a = null === (r = null === e || void 0 === e ? void 0 : e.current) || void 0 === r ? void 0 : r.offsetHeight) && void 0 !== a ? a: 0;
          vidMap.set(l, __assign(__assign({},
            vidMap.get(l)), {
            rowItemHeight: c
          })),
            o({
              type: "initHeight",
              rowHeight: c
            })
        }
      } (t.hasOwnProperty("current") ? t: u)
    },
    [u, o, n, i]),
    React__default.createElement("tr", __assign({},
      s, {
        ref: t.hasOwnProperty("current") ? t: u,
        style: __assign(__assign({},
          c), {
          height: n || "auto",
          boxSizing: "border-box"
        })
      }), a)
}
function VWrapper(e) {
  var t = e.children,
    r = __rest(e, ["children"]),
    o = React.useContext(ScrollContext),
    n = o.renderLen,
    i = o.start,
    l = (o.offsetStart, t[1]),
    a = null;
  return a = Array.isArray(l) && l.length ? [t[0], l.slice(i, i + n).map(function(e) {
    return Array.isArray(e) ? e[0] : e
  })] : t,
    React__default.createElement("tbody", __assign({},
      r), a)
}
function VTable(e, t) {
  var r, o, n, i, l, a, c = e.style,
    s = e.children,
    u = __rest(e, ["style", "children"]),
    d = c.width,
    f = __rest(c, ["width"]),
    v = null !== t && void 0 !== t ? t: {},
    g = v.vid,
    p = v.scrollY,
    b = v.reachEnd,
    h = v.onScroll,
    T = React.useReducer(reducer, initialState),
    y = T[0],
    _ = T[1],
    m = React.useRef(null),
    S = React.useRef(null),
    w = React.useState(null !== (i = null === (n = null === (o = null === (r = s[1]) || void 0 === r ? void 0 : r.props) || void 0 === o ? void 0 : o.data) || void 0 === n ? void 0 : n.length) && void 0 !== i ? i: 0),
    R = w[0],
    O = w[1];
  React.useEffect(function() {
      return function() {
        vidMap.delete(g)
      }
    },
    []),
    React.useEffect(function() {
        var e, t, r, o, n, i;
        isNumber(null === (r = null === (t = null === (e = s[1]) || void 0 === e ? void 0 : e.props) || void 0 === t ? void 0 : t.data) || void 0 === r ? void 0 : r.length) && O(null === (i = null === (n = null === (o = s[1]) || void 0 === o ? void 0 : o.props) || void 0 === n ? void 0 : n.data) || void 0 === i ? void 0 : i.length)
      },
      [s]);
  var j = React.useMemo(function() {
      var e = "auto";
      return y.rowHeight && R && (e = y.rowHeight * R),
        e
    },
    [y.rowHeight, R]),
    H = 0;
  H = "string" == typeof p ? null === (a = null === (l = m.current) || void 0 === l ? void 0 : l.parentNode) || void 0 === a ? void 0 : a.offsetHeight: p,
  isNumber(j) && j < H && (H = j),
  H <= 0 && (H = 0);
  var x = React.useMemo(function() {
      var e = 1;
      if (y.rowHeight && R && H) if (H <= 0) e = 0;
      else {
        var t = 1 + (H / y.rowHeight | 0) + 2;
        e = t > R ? R: t
      }
      return e
    },
    [y.rowHeight, R, H]),
    E = y.rowHeight ? y.curScrollTop / y.rowHeight | 0 : 0,
    N = y.rowHeight ? y.curScrollTop % y.rowHeight: 0;
  return y.curScrollTop && y.rowHeight && y.curScrollTop > y.rowHeight ? E > R - x || E > 1 && (E -= 1, N += y.rowHeight) : E = 0,
    React.useEffect(function() {
        var e, t = null === (e = m.current) || void 0 === e ? void 0 : e.parentNode;
        vidMap.set(g, __assign(__assign({},
          vidMap.get(g)), {
          scrollNode: t
        })),
          b ? _({
            type: "reset",
            ifScrollTopClear: !1
          }) : (t && (t.scrollTop = 0), _({
            type: "reset",
            ifScrollTopClear: !0
          }))
      },
      [R]),
    React.useEffect(function() {
        var e, t = throttle(function(e) {
            var t, r, o, n, i, l, a = null !== (r = null === (t = null === e || void 0 === e ? void 0 : e.target) || void 0 === t ? void 0 : t.scrollTop) && void 0 !== r ? r: 0,
              c = null !== (n = null === (o = null === e || void 0 === e ? void 0 : e.target) || void 0 === o ? void 0 : o.scrollHeight) && void 0 !== n ? n: 0,
              s = null !== (l = null === (i = null === e || void 0 === e ? void 0 : e.target) || void 0 === i ? void 0 : i.clientHeight) && void 0 !== l ? l: 0;
            a === c || a + s >= c && b && b(),
            h && h(),
              _({
                type: "changeTrs",
                curScrollTop: a,
                scrollHeight: c,
                tableScrollY: H
              })
          },
          throttleTime),
          r = null === (e = null === m || void 0 === m ? void 0 : m.current) || void 0 === e ? void 0 : e.parentNode;
        return r && r.addEventListener("scroll", t),
          function() {
            r.removeEventListener("scroll", t)
          }
      },
      [m, H]),
    React__default.createElement("div", {
        className: "virtuallist",
        ref: m,
        style: {
          width: "100%",
          position: "relative",
          height: j,
          boxSizing: "border-box",
          paddingTop: y.curScrollTop
        }
      },
      React__default.createElement(ScrollContext.Provider, {
          value: {
            dispatch: _,
            rowHeight: y.rowHeight,
            start: E,
            offsetStart: N,
            renderLen: x,
            totalLen: R,
            vid: g
          }
        },
        React__default.createElement("table", __assign({},
          u, {
            ref: S,
            style: __assign(__assign({},
              f), {
              width: d,
              position: "relative",
              transform: "translateY(-" + N + "px)"
            })
          }), s)))
}
function VList(e) {
  var t, r, o, n = null !== (t = e.vid) && void 0 !== t ? t: DEFAULT_VID;
  return vidMap.has(n) ? o = null === (r = vidMap.get(n)) || void 0 === r ? void 0 : r.components: (o = transformTable({
    vid: n,
    scrollY: e.height,
    reachEnd: e.onReachEnd,
    onScroll: e.onScroll
  }), vidMap.set(n, {
    components: o
  })),
    {
      table: o,
      body: {
        wrapper: VWrapper,
        row: VRow,
        cell: VCell
      }
    }
}
function scrollTo(e) {
  var t = e.row,
    r = e.y,
    o = e.vid,
    n = void 0 === o ? DEFAULT_VID: o,
    i = vidMap.get(n),
    l = i.scrollNode,
    a = i.rowItemHeight;
  l.scrollTop = t ? t - 1 > 0 ? (t - 1) * (null !== a && void 0 !== a ? a: 0) : 0 : null !== r && void 0 !== r ? r: 0
}
Object.defineProperty(exports, "__esModule", {
  value: !0
});
var React = require("react"),
  React__default = _interopDefault(React),
  __assign = function() {
    return (__assign = Object.assign ||
      function(e) {
        for (var t, r = 1,
               o = arguments.length; r < o; r++) {
          t = arguments[r];
          for (var n in t) Object.prototype.hasOwnProperty.call(t, n) && (e[n] = t[n])
        }
        return e
      }).apply(this, arguments)
  },
  freeGlobal = "object" == typeof global && global && global.Object === Object && global,
  freeSelf = "object" == typeof self && self && self.Object === Object && self,
  root = freeGlobal || freeSelf || Function("return this")(),
  Symbol = root.Symbol,
  objectProto = Object.prototype,
  hasOwnProperty = objectProto.hasOwnProperty,
  nativeObjectToString = objectProto.toString,
  symToStringTag = Symbol ? Symbol.toStringTag: void 0,
  objectProto$1 = Object.prototype,
  nativeObjectToString$1 = objectProto$1.toString,
  nullTag = "[object Null]",
  undefinedTag = "[object Undefined]",
  symToStringTag$1 = Symbol ? Symbol.toStringTag: void 0,
  symbolTag = "[object Symbol]",
  reWhitespace = /\s/,
  reTrimStart = /^\s+/,
  NAN = NaN,
  reIsBadHex = /^[-+]0x[0-9a-f]+$/i,
  reIsBinary = /^0b[01]+$/i,
  reIsOctal = /^0o[0-7]+$/i,
  freeParseInt = parseInt,
  now = function() {
    return root.Date.now()
  },
  FUNC_ERROR_TEXT = "Expected a function",
  nativeMax = Math.max,
  nativeMin = Math.min,
  numberTag = "[object Number]",
  FUNC_ERROR_TEXT$1 = "Expected a function",
  css_248z = ".virtuallist .ant-table-tbody>tr>td>div{-webkit-box-sizing:border-box;box-sizing:border-box;white-space:nowrap;vertical-align:middle;overflow:hidden;text-overflow:ellipsis;width:100%}.virtuallist .ant-table-tbody>tr>td.ant-table-row-expand-icon-cell>div{overflow:inherit}.ant-table-bordered .virtuallist>table>.ant-table-tbody>tr>td{border-right:1px solid #f0f0f0}";
styleInject(css_248z);
var initialState = {
    rowHeight: 0,
    curScrollTop: 0,
    scrollHeight: 0,
    tableScrollY: 0
  },
  DEFAULT_VID = "vtable",
  vidMap = new Map,
  ScrollContext = React.createContext({
    dispatch: void 0,
    renderLen: 1,
    start: 0,
    offsetStart: 0,
    rowHeight: initialState.rowHeight,
    totalLen: 0,
    vid: DEFAULT_VID
  }),
  transformTable = function(e) {
    return function(t) {
      return VTable(t, e)
    }
  };
exports.VList = VList,
  exports.scrollTo = scrollTo;