zarm-web/es/table/helpers.js

基于 React 的桌面端UI库

function ownKeys(object, enumerableOnly) { var keys = Object.keys(object); if (Object.getOwnPropertySymbols) { var symbols = Object.getOwnPropertySymbols(object); if (enumerableOnly) symbols = symbols.filter(function (sym) { return Object.getOwnPropertyDescriptor(object, sym).enumerable; }); keys.push.apply(keys, symbols); } return keys; }

function _objectSpread(target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i] != null ? arguments[i] : {}; if (i % 2) { ownKeys(source, true).forEach(function (key) { _defineProperty(target, key, source[key]); }); } else if (Object.getOwnPropertyDescriptors) { Object.defineProperties(target, Object.getOwnPropertyDescriptors(source)); } else { ownKeys(source).forEach(function (key) { Object.defineProperty(target, key, Object.getOwnPropertyDescriptor(source, key)); }); } } return target; }

function _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }

// 表头分组
export const groupColumns = (columns, currentRow = 0, parentColumn = {}, rows = [], dataColumns = []) => {
  rows[currentRow] = rows[currentRow] || [];
  const group = [];

  function setRowSpan(column) {
    const rowSpan = rows.length - currentRow;

    if (column && !column.children && rowSpan > 1 && (!column.rowSpan || column.rowSpan < rowSpan)) {
      column.rowSpan = rowSpan;
    }
  }

  columns.forEach((column, index) => {
    const newColumn = _objectSpread({}, column);

    rows[currentRow].push(newColumn);
    parentColumn.colSpan = parentColumn.colSpan || 0;

    if (newColumn.children && newColumn.children.length > 0) {
      newColumn.children = groupColumns(newColumn.children, currentRow + 1, newColumn, rows, dataColumns).group;
      parentColumn.colSpan += newColumn.colSpan;
    } else {
      dataColumns.push(newColumn);
      parentColumn.colSpan += 1;
    }

    for (let i = 0; i < rows[currentRow].length - 1; ++i) {
      setRowSpan(rows[currentRow][i]);
    }

    if (index + 1 === columns.length) {
      setRowSpan(newColumn);
    }

    group.push(newColumn);
  });
  return {
    group,
    headRows: rows,
    dataColumns
  };
}; // 鼠标hover效果

export const toggleHoverStatus = (trs, index) => {
  trs.forEach(tr => tr.classList.remove('hover'));

  if (index >= 0) {
    trs[index].classList.add('hover');
  }
};