"use strict";

var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");
var _typeof = require("@babel/runtime/helpers/typeof");
Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.useScrollCellIntoView = exports.useScrollBars = exports.useScroll = void 0;
var _regenerator = _interopRequireDefault(require("@babel/runtime/regenerator"));
var _asyncToGenerator2 = _interopRequireDefault(require("@babel/runtime/helpers/asyncToGenerator"));
var _react = _interopRequireWildcard(require("react"));
var _services = require("../../../services");
var _hooks = require("../../../services/hooks");
var _global_styling = require("../../../global_styling");
var _cell = require("../body/cell");
var _focus = require("./focus");
var _scrolling = require("./scrolling.styles");
var _react2 = require("@emotion/react");
function _getRequireWildcardCache(e) { if ("function" != typeof WeakMap) return null; var r = new WeakMap(), t = new WeakMap(); return (_getRequireWildcardCache = function _getRequireWildcardCache(e) { return e ? t : r; })(e); }
function _interopRequireWildcard(e, r) { if (!r && e && e.__esModule) return e; if (null === e || "object" != _typeof(e) && "function" != typeof e) return { default: e }; var t = _getRequireWildcardCache(r); if (t && t.has(e)) return t.get(e); var n = { __proto__: null }, a = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var u in e) if ("default" !== u && {}.hasOwnProperty.call(e, u)) { var i = a ? Object.getOwnPropertyDescriptor(e, u) : null; i && (i.get || i.set) ? Object.defineProperty(n, u, i) : n[u] = e[u]; } return n.default = e, t && t.set(e, n), n; }
/*
 * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
 * or more contributor license agreements. Licensed under the Elastic License
 * 2.0 and the Server Side Public License, v 1; you may not use this file except
 * in compliance with, at your election, the Elastic License 2.0 or the Server
 * Side Public License, v 1.
 */

var ACTIONS_MENU_HEIGHT = 21;
/**
 * The primary goal of this scroll logic is to ensure keyboard navigation works accessibly,
 * but there are other scenarios where it applies (e.g. clicking partially-visible cells)
 * or is useful for (e.g. manually scrolling to cell that is currently out of viewport
 * while accounting for headers/footers/scrollbars)
 */
var useScroll = exports.useScroll = function useScroll(args) {
  var _useScrollCellIntoVie = useScrollCellIntoView(args),
    scrollCellIntoView = _useScrollCellIntoVie.scrollCellIntoView;
  var _useContext = (0, _react.useContext)(_focus.DataGridFocusContext),
    focusedCell = _useContext.focusedCell;
  var isPointerDownRef = (0, _hooks.useIsPointerDown)(args.outerGridRef);

  /**
   * Set when `focusedCell` changes while the pointer is held down (e.g. clicking a cell).
   * Allows the `pointerup` listener below to scroll on release without
   * causing snap-back when the user scrolls the grid without changing focus.
   */
  var pendingScrollRef = (0, _react.useRef)(false);
  (0, _react.useEffect)(function () {
    if (!focusedCell) return;
    if (isPointerDownRef.current) {
      // Pointer is down - defer scroll decision to the pointerup listener
      pendingScrollRef.current = true;
      return;
    }
    scrollCellIntoView({
      rowIndex: focusedCell[1],
      colIndex: focusedCell[0]
    });
  }, [focusedCell, scrollCellIntoView, isPointerDownRef]);
  (0, _react.useEffect)(function () {
    var handlePointerUp = function handlePointerUp(event) {
      var _window;
      if (!pendingScrollRef.current || !focusedCell) return;
      pendingScrollRef.current = false;

      // The pointerup event can come from any mouse button, not only the left
      // click. We only care about the primary (usually left) mouse button
      // clicks, and specifically have to ignore middle mouse button clicks,
      // which indicate scrolling on Windows.
      if (event.pointerType === 'mouse' && event.button !== 0) return;

      // Skip if the interaction resulted in text being selected
      if (((_window = window) === null || _window === void 0 || (_window = _window.getSelection()) === null || _window === void 0 ? void 0 : _window.type) === 'Range') return;
      scrollCellIntoView({
        rowIndex: focusedCell[1],
        colIndex: focusedCell[0]
      });
    };
    document.addEventListener('pointerup', handlePointerUp, {
      capture: true
    });
    return function () {
      return document.removeEventListener('pointerup', handlePointerUp, {
        capture: true
      });
    };
  }, [focusedCell, scrollCellIntoView]);
  var _useContext2 = (0, _react.useContext)(_cell.DataGridCellPopoverContext),
    popoverIsOpen = _useContext2.popoverIsOpen,
    cellLocation = _useContext2.cellLocation;
  (0, _react.useEffect)(function () {
    if (popoverIsOpen) {
      scrollCellIntoView({
        rowIndex: cellLocation.rowIndex,
        colIndex: cellLocation.colIndex
      });
    }
  }, [popoverIsOpen, cellLocation, scrollCellIntoView]);
  return {
    scrollCellIntoView: scrollCellIntoView
  };
};

/**
 * Ensures that the passed cell is always fully in view by using cell position
 * checks and scroll adjustments/workarounds.
 */
var useScrollCellIntoView = exports.useScrollCellIntoView = function useScrollCellIntoView(_ref) {
  var gridRef = _ref.gridRef,
    outerGridRef = _ref.outerGridRef,
    hasGridScrolling = _ref.hasGridScrolling,
    headerRowHeight = _ref.headerRowHeight,
    footerRowHeight = _ref.footerRowHeight,
    visibleRowCount = _ref.visibleRowCount,
    hasStickyFooter = _ref.hasStickyFooter,
    canDragAndDropColumns = _ref.canDragAndDropColumns;
  var scrollCellIntoView = (0, _react.useCallback)(
  /*#__PURE__*/
  // Note: in order for this UX to work correctly with react-window's APIs,
  // the `rowIndex` arg expected is actually our internal `visibleRowIndex`,
  // not the `rowIndex` from the raw unsorted/unpaginated user data
  function () {
    var _ref3 = (0, _asyncToGenerator2.default)( /*#__PURE__*/_regenerator.default.mark(function _callee(_ref2) {
      var _adjustedScrollLeft;
      var rowIndex, colIndex, getCell, cell, cellIsInView, isStickyHeader, isStickyFooter, isDraggableHeader, isDraggableHeaderCell, _outerGridRef$current, scrollTop, scrollLeft, adjustedScrollTop, adjustedScrollLeft, cellLeftPos, cellRightPos, rightScrollBound, rightWidthOutOfView, leftScrollBound, leftWidthOutOfView, _adjustedScrollTop, parentRow, cellBottomPos, bottomScrollBound, bottomHeightOutOfView, cellTopPos, topScrollBound, topHeightOutOfView, _adjustedScrollLeft2, _adjustedScrollTop2;
      return _regenerator.default.wrap(function _callee$(_context) {
        while (1) switch (_context.prev = _context.next) {
          case 0:
            rowIndex = _ref2.rowIndex, colIndex = _ref2.colIndex;
            if (!(!gridRef.current || !outerGridRef.current)) {
              _context.next = 3;
              break;
            }
            return _context.abrupt("return");
          case 3:
            if (hasGridScrolling) {
              _context.next = 5;
              break;
            }
            return _context.abrupt("return");
          case 5:
            // Obtain the outermost wrapper of the current cell in view in order to
            // get scroll position/height/width calculations and determine what level
            // of scroll adjustment the cell needs
            getCell = function getCell() {
              return outerGridRef.current.querySelector("[data-gridcell-column-index=\"".concat(colIndex, "\"][data-gridcell-visible-row-index=\"").concat(rowIndex, "\"]"));
            };
            cell = getCell(); // If the cell is completely out of view, we need to use react-window's
            // scrollToItem API to get it virtualized and rendered.
            cellIsInView = !!getCell();
            if (cellIsInView) {
              _context.next = 13;
              break;
            }
            gridRef.current.scrollToItem({
              rowIndex: rowIndex,
              columnIndex: colIndex
            });
            _context.next = 12;
            return new Promise(requestAnimationFrame);
          case 12:
            // The cell does not immediately render - we need to wait an async tick
            cell = getCell();
          case 13:
            if (cell) {
              _context.next = 15;
              break;
            }
            return _context.abrupt("return");
          case 15:
            // If for some reason we can't find a valid cell, short-circuit
            isStickyHeader = rowIndex === -1;
            isStickyFooter = hasStickyFooter && rowIndex === visibleRowCount;
            isDraggableHeader = canDragAndDropColumns && isStickyHeader;
            isDraggableHeaderCell = isDraggableHeader && cell.offsetLeft === 0 && colIndex !== 0; // We now manually adjust scroll positioning around the cell to ensure it's
            // fully in view on all sides. A couple of notes on this:
            // 1. We're avoiding relying on react-window's scrollToItem for this because it also
            //    does not account for sticky items (see https://github.com/bvaughn/react-window/issues/586)
            // 2. The current scroll position we're using as a base comes from either by
            //    `scrollToItem` or native .focus()'s automatic scroll behavior. This gets us
            //    halfway there, but doesn't guarantee the *full* cell in view, or account for
            //    sticky positioned rows or OS scrollbars, hence these workarounds
            _outerGridRef$current = outerGridRef.current, scrollTop = _outerGridRef$current.scrollTop, scrollLeft = _outerGridRef$current.scrollLeft;
            // Draggable header columns are nested within EuiDraggables,
            // and their offsetLeft needs to go up a wrapper as a result
            cellLeftPos = isDraggableHeaderCell ? cell.offsetParent.offsetLeft : cell.offsetLeft; // Check if the cell's right side is outside the current scrolling bounds
            cellRightPos = cellLeftPos + cell.offsetWidth;
            rightScrollBound = scrollLeft + outerGridRef.current.clientWidth; // Note: We specifically want clientWidth and not offsetWidth here to account for scrollbars
            rightWidthOutOfView = cellRightPos - rightScrollBound;
            if (rightWidthOutOfView > 0) {
              adjustedScrollLeft = scrollLeft + rightWidthOutOfView;
            }

            // Check if the cell's left side is outside the current scrolling bounds
            leftScrollBound = (_adjustedScrollLeft = adjustedScrollLeft) !== null && _adjustedScrollLeft !== void 0 ? _adjustedScrollLeft : scrollLeft;
            leftWidthOutOfView = leftScrollBound - cellLeftPos;
            if (leftWidthOutOfView > 0) {
              // Note: This overrides the right side being out of bounds, as we want to prefer
              // showing the top-left corner of items if a cell is larger than the grid container
              adjustedScrollLeft = cellLeftPos;
            }

            // Skip top/bottom scroll adjustments for sticky headers & footers
            // since they should always be in view vertically
            if (!isStickyHeader && !isStickyFooter) {
              parentRow = cell.parentNode; // Check if the cell's bottom side is outside the current scrolling bounds
              cellBottomPos = parentRow.offsetTop + cell.offsetHeight;
              bottomScrollBound = scrollTop + outerGridRef.current.clientHeight; // Note: We specifically want clientHeight and not offsetHeight here to account for scrollbars
              if (hasStickyFooter) bottomScrollBound -= footerRowHeight; // Sticky footer is not always present
              bottomHeightOutOfView = cellBottomPos - bottomScrollBound;
              if (bottomHeightOutOfView > 0) {
                adjustedScrollTop = scrollTop + bottomHeightOutOfView;
              }

              // Check if the cell's top side is outside the current scrolling bounds
              cellTopPos = parentRow.offsetTop;
              topScrollBound = (_adjustedScrollTop = adjustedScrollTop) !== null && _adjustedScrollTop !== void 0 ? _adjustedScrollTop : scrollTop + headerRowHeight; // Sticky header is always present
              topHeightOutOfView = topScrollBound - cellTopPos;
              if (topHeightOutOfView > 0) {
                // Note: This overrides the bottom side being out of bounds, as we want to prefer
                // showing the top-left corner of items if a cell is larger than the grid container
                // Additionally, add an offset for the actions menu
                adjustedScrollTop = cellTopPos - headerRowHeight - ACTIONS_MENU_HEIGHT;
              }
            }

            // Check for undefined specifically (because 0 is a valid scroll position)
            // to avoid unnecessarily calling scrollTo or hijacking scroll
            if (adjustedScrollTop !== undefined || adjustedScrollLeft !== undefined) {
              gridRef.current.scrollTo({
                scrollLeft: (_adjustedScrollLeft2 = adjustedScrollLeft) !== null && _adjustedScrollLeft2 !== void 0 ? _adjustedScrollLeft2 : scrollLeft,
                scrollTop: (_adjustedScrollTop2 = adjustedScrollTop) !== null && _adjustedScrollTop2 !== void 0 ? _adjustedScrollTop2 : scrollTop
              });
            }
          case 30:
          case "end":
            return _context.stop();
        }
      }, _callee);
    }));
    return function (_x) {
      return _ref3.apply(this, arguments);
    };
  }(), [gridRef, outerGridRef, hasGridScrolling, headerRowHeight, footerRowHeight, visibleRowCount, hasStickyFooter, canDragAndDropColumns]);
  return {
    scrollCellIntoView: scrollCellIntoView
  };
};

/**
 * Checks whether the current grid scrolls and/or has scrollbars
 */
var useScrollBars = exports.useScrollBars = function useScrollBars(outerGridRef) {
  var borderStyle = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 'all';
  // https://stackoverflow.com/a/40568748/4294462
  var scrollBarHeight = outerGridRef.current ? outerGridRef.current.offsetHeight - outerGridRef.current.clientHeight : 0;
  var scrollBarWidth = outerGridRef.current ? outerGridRef.current.offsetWidth - outerGridRef.current.clientWidth : 0;

  // https://stackoverflow.com/a/5038256
  // Note that it is possible (MacOS) for a grid to scroll but not have scrollbar widths/heights
  var hasHorizontalScroll = outerGridRef.current ? outerGridRef.current.scrollWidth > outerGridRef.current.clientWidth : false;
  var hasVerticalScroll = outerGridRef.current ? outerGridRef.current.scrollHeight > outerGridRef.current.clientHeight : false;

  // If the grid scrolls or has scrollbars, we add custom border overlays
  // (since borders are normally set by cells) to ensure our grid body has
  // ending borders regardless of scroll position
  var styles = (0, _services.useEuiMemoizedStyles)(_scrolling.euiDataGridScrollBarStyles);
  var scrollBorderOverlay = (0, _react.useMemo)(function () {
    if (!hasHorizontalScroll && !hasVerticalScroll) {
      return null; // Nothing to render if the grid doesn't scroll
    }
    if (borderStyle === 'none') {
      return null; // Nothing to render if the grid doesn't use borders
    }
    return (0, _react2.jsx)("div", {
      css: styles.euiDataGrid__scrollOverlay,
      className: "euiDataGrid__scrollOverlay",
      role: "presentation"
    }, scrollBarHeight > 0 && (0, _react2.jsx)("div", {
      css: styles.euiDataGrid__scrollBarOverlayBottom,
      className: "euiDataGrid__scrollBarOverlayBottom",
      style: (0, _global_styling.logicalStyles)({
        bottom: scrollBarHeight
      })
    }), scrollBarWidth > 0 && (0, _react2.jsx)("div", {
      css: styles.euiDataGrid__scrollBarOverlayRight,
      className: "euiDataGrid__scrollBarOverlayRight",
      style: (0, _global_styling.logicalStyles)({
        top: 0,
        bottom: scrollBarHeight,
        right: scrollBarWidth
      })
    }));
  }, [hasHorizontalScroll, hasVerticalScroll, scrollBarHeight, scrollBarWidth, borderStyle, styles]);
  return {
    scrollBarHeight: scrollBarHeight,
    scrollBarWidth: scrollBarWidth,
    hasVerticalScroll: hasVerticalScroll,
    hasHorizontalScroll: hasHorizontalScroll,
    scrollBorderOverlay: scrollBorderOverlay
  };
};