handsontable/focusManager/utils/utils.js

Handsontable is a JavaScript Data Grid available for React, Angular and Vue.

"use strict";

exports.__esModule = true;
exports.getMostBottomEndPosition = getMostBottomEndPosition;
exports.getMostTopStartPosition = getMostTopStartPosition;
exports.normalizeCoordsIfNeeded = normalizeCoordsIfNeeded;
var _number = require("../../helpers/number");
/**
 * Normalizes the coordinates (clamps to nearest visible cell position within dataset range).
 *
 * @param {Core} hot The Handsontable instance.
 * @returns {function(Coords | undefined): Coords | null}
 */
function normalizeCoordsIfNeeded(hot) {
  return coords => {
    if (!coords) {
      return null;
    }
    const {
      rowIndexMapper,
      columnIndexMapper
    } = hot;
    if (rowIndexMapper.isHidden(coords.row) || columnIndexMapper.isHidden(coords.col)) {
      return null;
    }
    const mostTopStartCoords = getMostTopStartPosition(hot);
    const mostBottomEndCoords = getMostBottomEndPosition(hot);
    if (mostTopStartCoords === null || mostBottomEndCoords === null) {
      return null;
    }
    coords.row = (0, _number.clamp)(coords.row, mostTopStartCoords.row, mostBottomEndCoords.row);
    coords.col = (0, _number.clamp)(coords.col, mostTopStartCoords.col, mostBottomEndCoords.col);
    return coords;
  };
}

/**
 * Gets the coordinates of the most top-start cell or header (depends on the table settings and its size).
 *
 * @param {Core} hot The Handsontable instance.
 * @returns {CellCoords|null}
 */
function getMostTopStartPosition(hot) {
  const {
    rowIndexMapper,
    columnIndexMapper
  } = hot;
  const {
    navigableHeaders
  } = hot.getSettings();
  let topRow = navigableHeaders && hot.countColHeaders() > 0 ? -hot.countColHeaders() : 0;
  let startColumn = navigableHeaders && hot.countRowHeaders() > 0 ? -hot.countRowHeaders() : 0;
  if (topRow === 0) {
    topRow = rowIndexMapper.getVisualFromRenderableIndex(topRow);
  }
  if (startColumn === 0) {
    startColumn = columnIndexMapper.getVisualFromRenderableIndex(startColumn);
  }
  if (topRow === null || startColumn === null) {
    return null;
  }
  return hot._createCellCoords(topRow, startColumn);
}

/**
 * Gets the coordinates of the most bottom-end cell or header (depends on the table settings and its size).
 *
 * @param {Core} hot The Handsontable instance.
 * @returns {CellCoords|null}
 */
function getMostBottomEndPosition(hot) {
  var _rowIndexMapper$getVi, _columnIndexMapper$ge;
  const {
    rowIndexMapper,
    columnIndexMapper
  } = hot;
  const {
    navigableHeaders
  } = hot.getSettings();
  let bottomRow = rowIndexMapper.getRenderableIndexesLength() - 1;
  let endColumn = columnIndexMapper.getRenderableIndexesLength() - 1;
  if (bottomRow < 0) {
    if (!navigableHeaders || hot.countColHeaders() === 0) {
      return null;
    }
    bottomRow = -1;
  }
  if (endColumn < 0) {
    if (!navigableHeaders || hot.countColHeaders() === 0) {
      return null;
    }
    endColumn = -1;
  }
  return hot._createCellCoords((_rowIndexMapper$getVi = rowIndexMapper.getVisualFromRenderableIndex(bottomRow)) !== null && _rowIndexMapper$getVi !== void 0 ? _rowIndexMapper$getVi : bottomRow, (_columnIndexMapper$ge = columnIndexMapper.getVisualFromRenderableIndex(endColumn)) !== null && _columnIndexMapper$ge !== void 0 ? _columnIndexMapper$ge : endColumn);
}