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frontend/node_modules/rc-virtual-list/lib/List.js

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+"use strict";
+
+var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault").default;
+var _interopRequireWildcard = require("@babel/runtime/helpers/interopRequireWildcard").default;
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.RawList = RawList;
+exports.default = void 0;
+var _extends2 = _interopRequireDefault(require("@babel/runtime/helpers/extends"));
+var _typeof2 = _interopRequireDefault(require("@babel/runtime/helpers/typeof"));
+var _objectSpread3 = _interopRequireDefault(require("@babel/runtime/helpers/objectSpread2"));
+var _defineProperty2 = _interopRequireDefault(require("@babel/runtime/helpers/defineProperty"));
+var _slicedToArray2 = _interopRequireDefault(require("@babel/runtime/helpers/slicedToArray"));
+var _objectWithoutProperties2 = _interopRequireDefault(require("@babel/runtime/helpers/objectWithoutProperties"));
+var _classnames = _interopRequireDefault(require("classnames"));
+var _rcResizeObserver = _interopRequireDefault(require("rc-resize-observer"));
+var _rcUtil = require("rc-util");
+var _useLayoutEffect = _interopRequireDefault(require("rc-util/lib/hooks/useLayoutEffect"));
+var _react = _interopRequireWildcard(require("react"));
+var React = _react;
+var _reactDom = require("react-dom");
+var _Filler = _interopRequireDefault(require("./Filler"));
+var _useChildren = _interopRequireDefault(require("./hooks/useChildren"));
+var _useDiffItem3 = _interopRequireDefault(require("./hooks/useDiffItem"));
+var _useFrameWheel3 = _interopRequireDefault(require("./hooks/useFrameWheel"));
+var _useGetSize = require("./hooks/useGetSize");
+var _useHeights3 = _interopRequireDefault(require("./hooks/useHeights"));
+var _useMobileTouchMove = _interopRequireDefault(require("./hooks/useMobileTouchMove"));
+var _useOriginScroll = _interopRequireDefault(require("./hooks/useOriginScroll"));
+var _useScrollDrag = _interopRequireDefault(require("./hooks/useScrollDrag"));
+var _useScrollTo = _interopRequireDefault(require("./hooks/useScrollTo"));
+var _ScrollBar = _interopRequireDefault(require("./ScrollBar"));
+var _scrollbarUtil = require("./utils/scrollbarUtil");
+var _excluded = ["prefixCls", "className", "height", "itemHeight", "fullHeight", "style", "data", "children", "itemKey", "virtual", "direction", "scrollWidth", "component", "onScroll", "onVirtualScroll", "onVisibleChange", "innerProps", "extraRender", "styles", "showScrollBar"];
+var EMPTY_DATA = [];
+var ScrollStyle = {
+  overflowY: 'auto',
+  overflowAnchor: 'none'
+};
+function RawList(props, ref) {
+  var _props$prefixCls = props.prefixCls,
+    prefixCls = _props$prefixCls === void 0 ? 'rc-virtual-list' : _props$prefixCls,
+    className = props.className,
+    height = props.height,
+    itemHeight = props.itemHeight,
+    _props$fullHeight = props.fullHeight,
+    fullHeight = _props$fullHeight === void 0 ? true : _props$fullHeight,
+    style = props.style,
+    data = props.data,
+    children = props.children,
+    itemKey = props.itemKey,
+    virtual = props.virtual,
+    direction = props.direction,
+    scrollWidth = props.scrollWidth,
+    _props$component = props.component,
+    Component = _props$component === void 0 ? 'div' : _props$component,
+    onScroll = props.onScroll,
+    onVirtualScroll = props.onVirtualScroll,
+    onVisibleChange = props.onVisibleChange,
+    innerProps = props.innerProps,
+    extraRender = props.extraRender,
+    styles = props.styles,
+    _props$showScrollBar = props.showScrollBar,
+    showScrollBar = _props$showScrollBar === void 0 ? 'optional' : _props$showScrollBar,
+    restProps = (0, _objectWithoutProperties2.default)(props, _excluded);
+
+  // =============================== Item Key ===============================
+  var getKey = React.useCallback(function (item) {
+    if (typeof itemKey === 'function') {
+      return itemKey(item);
+    }
+    return item === null || item === void 0 ? void 0 : item[itemKey];
+  }, [itemKey]);
+
+  // ================================ Height ================================
+  var _useHeights = (0, _useHeights3.default)(getKey, null, null),
+    _useHeights2 = (0, _slicedToArray2.default)(_useHeights, 4),
+    setInstanceRef = _useHeights2[0],
+    collectHeight = _useHeights2[1],
+    heights = _useHeights2[2],
+    heightUpdatedMark = _useHeights2[3];
+
+  // ================================= MISC =================================
+  var useVirtual = !!(virtual !== false && height && itemHeight);
+  var containerHeight = React.useMemo(function () {
+    return Object.values(heights.maps).reduce(function (total, curr) {
+      return total + curr;
+    }, 0);
+  }, [heights.id, heights.maps]);
+  var inVirtual = useVirtual && data && (Math.max(itemHeight * data.length, containerHeight) > height || !!scrollWidth);
+  var isRTL = direction === 'rtl';
+  var mergedClassName = (0, _classnames.default)(prefixCls, (0, _defineProperty2.default)({}, "".concat(prefixCls, "-rtl"), isRTL), className);
+  var mergedData = data || EMPTY_DATA;
+  var componentRef = (0, _react.useRef)();
+  var fillerInnerRef = (0, _react.useRef)();
+  var containerRef = (0, _react.useRef)();
+
+  // =============================== Item Key ===============================
+
+  var _useState = (0, _react.useState)(0),
+    _useState2 = (0, _slicedToArray2.default)(_useState, 2),
+    offsetTop = _useState2[0],
+    setOffsetTop = _useState2[1];
+  var _useState3 = (0, _react.useState)(0),
+    _useState4 = (0, _slicedToArray2.default)(_useState3, 2),
+    offsetLeft = _useState4[0],
+    setOffsetLeft = _useState4[1];
+  var _useState5 = (0, _react.useState)(false),
+    _useState6 = (0, _slicedToArray2.default)(_useState5, 2),
+    scrollMoving = _useState6[0],
+    setScrollMoving = _useState6[1];
+  var onScrollbarStartMove = function onScrollbarStartMove() {
+    setScrollMoving(true);
+  };
+  var onScrollbarStopMove = function onScrollbarStopMove() {
+    setScrollMoving(false);
+  };
+  var sharedConfig = {
+    getKey: getKey
+  };
+
+  // ================================ Scroll ================================
+  function syncScrollTop(newTop) {
+    setOffsetTop(function (origin) {
+      var value;
+      if (typeof newTop === 'function') {
+        value = newTop(origin);
+      } else {
+        value = newTop;
+      }
+      var alignedTop = keepInRange(value);
+      componentRef.current.scrollTop = alignedTop;
+      return alignedTop;
+    });
+  }
+
+  // ================================ Legacy ================================
+  // Put ref here since the range is generate by follow
+  var rangeRef = (0, _react.useRef)({
+    start: 0,
+    end: mergedData.length
+  });
+  var diffItemRef = (0, _react.useRef)();
+  var _useDiffItem = (0, _useDiffItem3.default)(mergedData, getKey),
+    _useDiffItem2 = (0, _slicedToArray2.default)(_useDiffItem, 1),
+    diffItem = _useDiffItem2[0];
+  diffItemRef.current = diffItem;
+
+  // ========================== Visible Calculation =========================
+  var _React$useMemo = React.useMemo(function () {
+      if (!useVirtual) {
+        return {
+          scrollHeight: undefined,
+          start: 0,
+          end: mergedData.length - 1,
+          offset: undefined
+        };
+      }
+
+      // Always use virtual scroll bar in avoid shaking
+      if (!inVirtual) {
+        var _fillerInnerRef$curre;
+        return {
+          scrollHeight: ((_fillerInnerRef$curre = fillerInnerRef.current) === null || _fillerInnerRef$curre === void 0 ? void 0 : _fillerInnerRef$curre.offsetHeight) || 0,
+          start: 0,
+          end: mergedData.length - 1,
+          offset: undefined
+        };
+      }
+      var itemTop = 0;
+      var startIndex;
+      var startOffset;
+      var endIndex;
+      var dataLen = mergedData.length;
+      for (var i = 0; i < dataLen; i += 1) {
+        var _item = mergedData[i];
+        var key = getKey(_item);
+        var cacheHeight = heights.get(key);
+        var currentItemBottom = itemTop + (cacheHeight === undefined ? itemHeight : cacheHeight);
+
+        // Check item top in the range
+        if (currentItemBottom >= offsetTop && startIndex === undefined) {
+          startIndex = i;
+          startOffset = itemTop;
+        }
+
+        // Check item bottom in the range. We will render additional one item for motion usage
+        if (currentItemBottom > offsetTop + height && endIndex === undefined) {
+          endIndex = i;
+        }
+        itemTop = currentItemBottom;
+      }
+
+      // When scrollTop at the end but data cut to small count will reach this
+      if (startIndex === undefined) {
+        startIndex = 0;
+        startOffset = 0;
+        endIndex = Math.ceil(height / itemHeight);
+      }
+      if (endIndex === undefined) {
+        endIndex = mergedData.length - 1;
+      }
+
+      // Give cache to improve scroll experience
+      endIndex = Math.min(endIndex + 1, mergedData.length - 1);
+      return {
+        scrollHeight: itemTop,
+        start: startIndex,
+        end: endIndex,
+        offset: startOffset
+      };
+    }, [inVirtual, useVirtual, offsetTop, mergedData, heightUpdatedMark, height]),
+    scrollHeight = _React$useMemo.scrollHeight,
+    start = _React$useMemo.start,
+    end = _React$useMemo.end,
+    fillerOffset = _React$useMemo.offset;
+  rangeRef.current.start = start;
+  rangeRef.current.end = end;
+
+  // When scroll up, first visible item get real height may not same as `itemHeight`,
+  // Which will make scroll jump.
+  // Let's sync scroll top to avoid jump
+  React.useLayoutEffect(function () {
+    var changedRecord = heights.getRecord();
+    if (changedRecord.size === 1) {
+      var recordKey = Array.from(changedRecord.keys())[0];
+      var prevCacheHeight = changedRecord.get(recordKey);
+
+      // Quick switch data may cause `start` not in `mergedData` anymore
+      var startItem = mergedData[start];
+      if (startItem && prevCacheHeight === undefined) {
+        var startIndexKey = getKey(startItem);
+        if (startIndexKey === recordKey) {
+          var realStartHeight = heights.get(recordKey);
+          var diffHeight = realStartHeight - itemHeight;
+          syncScrollTop(function (ori) {
+            return ori + diffHeight;
+          });
+        }
+      }
+    }
+    heights.resetRecord();
+  }, [scrollHeight]);
+
+  // ================================= Size =================================
+  var _React$useState = React.useState({
+      width: 0,
+      height: height
+    }),
+    _React$useState2 = (0, _slicedToArray2.default)(_React$useState, 2),
+    size = _React$useState2[0],
+    setSize = _React$useState2[1];
+  var onHolderResize = function onHolderResize(sizeInfo) {
+    setSize({
+      width: sizeInfo.offsetWidth,
+      height: sizeInfo.offsetHeight
+    });
+  };
+
+  // Hack on scrollbar to enable flash call
+  var verticalScrollBarRef = (0, _react.useRef)();
+  var horizontalScrollBarRef = (0, _react.useRef)();
+  var horizontalScrollBarSpinSize = React.useMemo(function () {
+    return (0, _scrollbarUtil.getSpinSize)(size.width, scrollWidth);
+  }, [size.width, scrollWidth]);
+  var verticalScrollBarSpinSize = React.useMemo(function () {
+    return (0, _scrollbarUtil.getSpinSize)(size.height, scrollHeight);
+  }, [size.height, scrollHeight]);
+
+  // =============================== In Range ===============================
+  var maxScrollHeight = scrollHeight - height;
+  var maxScrollHeightRef = (0, _react.useRef)(maxScrollHeight);
+  maxScrollHeightRef.current = maxScrollHeight;
+  function keepInRange(newScrollTop) {
+    var newTop = newScrollTop;
+    if (!Number.isNaN(maxScrollHeightRef.current)) {
+      newTop = Math.min(newTop, maxScrollHeightRef.current);
+    }
+    newTop = Math.max(newTop, 0);
+    return newTop;
+  }
+  var isScrollAtTop = offsetTop <= 0;
+  var isScrollAtBottom = offsetTop >= maxScrollHeight;
+  var isScrollAtLeft = offsetLeft <= 0;
+  var isScrollAtRight = offsetLeft >= scrollWidth;
+  var originScroll = (0, _useOriginScroll.default)(isScrollAtTop, isScrollAtBottom, isScrollAtLeft, isScrollAtRight);
+
+  // ================================ Scroll ================================
+  var getVirtualScrollInfo = function getVirtualScrollInfo() {
+    return {
+      x: isRTL ? -offsetLeft : offsetLeft,
+      y: offsetTop
+    };
+  };
+  var lastVirtualScrollInfoRef = (0, _react.useRef)(getVirtualScrollInfo());
+  var triggerScroll = (0, _rcUtil.useEvent)(function (params) {
+    if (onVirtualScroll) {
+      var nextInfo = (0, _objectSpread3.default)((0, _objectSpread3.default)({}, getVirtualScrollInfo()), params);
+
+      // Trigger when offset changed
+      if (lastVirtualScrollInfoRef.current.x !== nextInfo.x || lastVirtualScrollInfoRef.current.y !== nextInfo.y) {
+        onVirtualScroll(nextInfo);
+        lastVirtualScrollInfoRef.current = nextInfo;
+      }
+    }
+  });
+  function onScrollBar(newScrollOffset, horizontal) {
+    var newOffset = newScrollOffset;
+    if (horizontal) {
+      (0, _reactDom.flushSync)(function () {
+        setOffsetLeft(newOffset);
+      });
+      triggerScroll();
+    } else {
+      syncScrollTop(newOffset);
+    }
+  }
+
+  // When data size reduce. It may trigger native scroll event back to fit scroll position
+  function onFallbackScroll(e) {
+    var newScrollTop = e.currentTarget.scrollTop;
+    if (newScrollTop !== offsetTop) {
+      syncScrollTop(newScrollTop);
+    }
+
+    // Trigger origin onScroll
+    onScroll === null || onScroll === void 0 || onScroll(e);
+    triggerScroll();
+  }
+  var keepInHorizontalRange = function keepInHorizontalRange(nextOffsetLeft) {
+    var tmpOffsetLeft = nextOffsetLeft;
+    var max = !!scrollWidth ? scrollWidth - size.width : 0;
+    tmpOffsetLeft = Math.max(tmpOffsetLeft, 0);
+    tmpOffsetLeft = Math.min(tmpOffsetLeft, max);
+    return tmpOffsetLeft;
+  };
+  var onWheelDelta = (0, _rcUtil.useEvent)(function (offsetXY, fromHorizontal) {
+    if (fromHorizontal) {
+      (0, _reactDom.flushSync)(function () {
+        setOffsetLeft(function (left) {
+          var nextOffsetLeft = left + (isRTL ? -offsetXY : offsetXY);
+          return keepInHorizontalRange(nextOffsetLeft);
+        });
+      });
+      triggerScroll();
+    } else {
+      syncScrollTop(function (top) {
+        var newTop = top + offsetXY;
+        return newTop;
+      });
+    }
+  });
+
+  // Since this added in global,should use ref to keep update
+  var _useFrameWheel = (0, _useFrameWheel3.default)(useVirtual, isScrollAtTop, isScrollAtBottom, isScrollAtLeft, isScrollAtRight, !!scrollWidth, onWheelDelta),
+    _useFrameWheel2 = (0, _slicedToArray2.default)(_useFrameWheel, 2),
+    onRawWheel = _useFrameWheel2[0],
+    onFireFoxScroll = _useFrameWheel2[1];
+
+  // Mobile touch move
+  (0, _useMobileTouchMove.default)(useVirtual, componentRef, function (isHorizontal, delta, smoothOffset, e) {
+    var event = e;
+    if (originScroll(isHorizontal, delta, smoothOffset)) {
+      return false;
+    }
+
+    // Fix nest List trigger TouchMove event
+    if (!event || !event._virtualHandled) {
+      if (event) {
+        event._virtualHandled = true;
+      }
+      onRawWheel({
+        preventDefault: function preventDefault() {},
+        deltaX: isHorizontal ? delta : 0,
+        deltaY: isHorizontal ? 0 : delta
+      });
+      return true;
+    }
+    return false;
+  });
+
+  // MouseDown drag for scroll
+  (0, _useScrollDrag.default)(inVirtual, componentRef, function (offset) {
+    syncScrollTop(function (top) {
+      return top + offset;
+    });
+  });
+  (0, _useLayoutEffect.default)(function () {
+    // Firefox only
+    function onMozMousePixelScroll(e) {
+      // scrolling at top/bottom limit
+      var scrollingUpAtTop = isScrollAtTop && e.detail < 0;
+      var scrollingDownAtBottom = isScrollAtBottom && e.detail > 0;
+      if (useVirtual && !scrollingUpAtTop && !scrollingDownAtBottom) {
+        e.preventDefault();
+      }
+    }
+    var componentEle = componentRef.current;
+    componentEle.addEventListener('wheel', onRawWheel, {
+      passive: false
+    });
+    componentEle.addEventListener('DOMMouseScroll', onFireFoxScroll, {
+      passive: true
+    });
+    componentEle.addEventListener('MozMousePixelScroll', onMozMousePixelScroll, {
+      passive: false
+    });
+    return function () {
+      componentEle.removeEventListener('wheel', onRawWheel);
+      componentEle.removeEventListener('DOMMouseScroll', onFireFoxScroll);
+      componentEle.removeEventListener('MozMousePixelScroll', onMozMousePixelScroll);
+    };
+  }, [useVirtual, isScrollAtTop, isScrollAtBottom]);
+
+  // Sync scroll left
+  (0, _useLayoutEffect.default)(function () {
+    if (scrollWidth) {
+      var newOffsetLeft = keepInHorizontalRange(offsetLeft);
+      setOffsetLeft(newOffsetLeft);
+      triggerScroll({
+        x: newOffsetLeft
+      });
+    }
+  }, [size.width, scrollWidth]);
+
+  // ================================= Ref ==================================
+  var delayHideScrollBar = function delayHideScrollBar() {
+    var _verticalScrollBarRef, _horizontalScrollBarR;
+    (_verticalScrollBarRef = verticalScrollBarRef.current) === null || _verticalScrollBarRef === void 0 || _verticalScrollBarRef.delayHidden();
+    (_horizontalScrollBarR = horizontalScrollBarRef.current) === null || _horizontalScrollBarR === void 0 || _horizontalScrollBarR.delayHidden();
+  };
+  var _scrollTo = (0, _useScrollTo.default)(componentRef, mergedData, heights, itemHeight, getKey, function () {
+    return collectHeight(true);
+  }, syncScrollTop, delayHideScrollBar);
+  React.useImperativeHandle(ref, function () {
+    return {
+      nativeElement: containerRef.current,
+      getScrollInfo: getVirtualScrollInfo,
+      scrollTo: function scrollTo(config) {
+        function isPosScroll(arg) {
+          return arg && (0, _typeof2.default)(arg) === 'object' && ('left' in arg || 'top' in arg);
+        }
+        if (isPosScroll(config)) {
+          // Scroll X
+          if (config.left !== undefined) {
+            setOffsetLeft(keepInHorizontalRange(config.left));
+          }
+
+          // Scroll Y
+          _scrollTo(config.top);
+        } else {
+          _scrollTo(config);
+        }
+      }
+    };
+  });
+
+  // ================================ Effect ================================
+  /** We need told outside that some list not rendered */
+  (0, _useLayoutEffect.default)(function () {
+    if (onVisibleChange) {
+      var renderList = mergedData.slice(start, end + 1);
+      onVisibleChange(renderList, mergedData);
+    }
+  }, [start, end, mergedData]);
+
+  // ================================ Extra =================================
+  var getSize = (0, _useGetSize.useGetSize)(mergedData, getKey, heights, itemHeight);
+  var extraContent = extraRender === null || extraRender === void 0 ? void 0 : extraRender({
+    start: start,
+    end: end,
+    virtual: inVirtual,
+    offsetX: offsetLeft,
+    offsetY: fillerOffset,
+    rtl: isRTL,
+    getSize: getSize
+  });
+
+  // ================================ Render ================================
+  var listChildren = (0, _useChildren.default)(mergedData, start, end, scrollWidth, offsetLeft, setInstanceRef, children, sharedConfig);
+  var componentStyle = null;
+  if (height) {
+    componentStyle = (0, _objectSpread3.default)((0, _defineProperty2.default)({}, fullHeight ? 'height' : 'maxHeight', height), ScrollStyle);
+    if (useVirtual) {
+      componentStyle.overflowY = 'hidden';
+      if (scrollWidth) {
+        componentStyle.overflowX = 'hidden';
+      }
+      if (scrollMoving) {
+        componentStyle.pointerEvents = 'none';
+      }
+    }
+  }
+  var containerProps = {};
+  if (isRTL) {
+    containerProps.dir = 'rtl';
+  }
+  return /*#__PURE__*/React.createElement("div", (0, _extends2.default)({
+    ref: containerRef,
+    style: (0, _objectSpread3.default)((0, _objectSpread3.default)({}, style), {}, {
+      position: 'relative'
+    }),
+    className: mergedClassName
+  }, containerProps, restProps), /*#__PURE__*/React.createElement(_rcResizeObserver.default, {
+    onResize: onHolderResize
+  }, /*#__PURE__*/React.createElement(Component, {
+    className: "".concat(prefixCls, "-holder"),
+    style: componentStyle,
+    ref: componentRef,
+    onScroll: onFallbackScroll,
+    onMouseEnter: delayHideScrollBar
+  }, /*#__PURE__*/React.createElement(_Filler.default, {
+    prefixCls: prefixCls,
+    height: scrollHeight,
+    offsetX: offsetLeft,
+    offsetY: fillerOffset,
+    scrollWidth: scrollWidth,
+    onInnerResize: collectHeight,
+    ref: fillerInnerRef,
+    innerProps: innerProps,
+    rtl: isRTL,
+    extra: extraContent
+  }, listChildren))), inVirtual && scrollHeight > height && /*#__PURE__*/React.createElement(_ScrollBar.default, {
+    ref: verticalScrollBarRef,
+    prefixCls: prefixCls,
+    scrollOffset: offsetTop,
+    scrollRange: scrollHeight,
+    rtl: isRTL,
+    onScroll: onScrollBar,
+    onStartMove: onScrollbarStartMove,
+    onStopMove: onScrollbarStopMove,
+    spinSize: verticalScrollBarSpinSize,
+    containerSize: size.height,
+    style: styles === null || styles === void 0 ? void 0 : styles.verticalScrollBar,
+    thumbStyle: styles === null || styles === void 0 ? void 0 : styles.verticalScrollBarThumb,
+    showScrollBar: showScrollBar
+  }), inVirtual && scrollWidth > size.width && /*#__PURE__*/React.createElement(_ScrollBar.default, {
+    ref: horizontalScrollBarRef,
+    prefixCls: prefixCls,
+    scrollOffset: offsetLeft,
+    scrollRange: scrollWidth,
+    rtl: isRTL,
+    onScroll: onScrollBar,
+    onStartMove: onScrollbarStartMove,
+    onStopMove: onScrollbarStopMove,
+    spinSize: horizontalScrollBarSpinSize,
+    containerSize: size.width,
+    horizontal: true,
+    style: styles === null || styles === void 0 ? void 0 : styles.horizontalScrollBar,
+    thumbStyle: styles === null || styles === void 0 ? void 0 : styles.horizontalScrollBarThumb,
+    showScrollBar: showScrollBar
+  }));
+}
+var List = /*#__PURE__*/React.forwardRef(RawList);
+List.displayName = 'List';
+var _default = exports.default = List;