slate-edit-table/dist/validation/validateNode.js

A Slate plugin to handle keyboard events in tables.

'use strict';

Object.defineProperty(exports, "__esModule", {
    value: true
});

var _utils = require('../utils');

/*
 * Ensure each row has the same number of columns.
 */
function validateNode(opts) {
    var isRow = function isRow(node) {
        return node.type === opts.typeRow;
    };
    var isCell = function isCell(node) {
        return node.type === opts.typeCell;
    };
    var countCells = function countCells(row) {
        return row.nodes.count(isCell);
    };

    return function (node) {
        if (node.type !== opts.typeTable) {
            return undefined;
        }

        var rows = node.nodes.filter(isRow);
        var maxColumns = Math.max(
        // Minimum 1 column
        1, rows.map(countCells).max());
        var rowsMissingColumns = rows.filter(function (row) {
            return countCells(row) < maxColumns;
        });

        if (rowsMissingColumns.isEmpty()) {
            return undefined;
        }

        return function (change) {
            rowsMissingColumns.forEach(function (row) {
                var numberOfCellsToAdd = maxColumns - row.nodes.size;
                var cells = Array.from({ length: numberOfCellsToAdd }).map(function () {
                    return (0, _utils.createCell)(opts);
                });
                cells.forEach(function (cell) {
                    return change.insertNodeByKey(row.key, row.nodes.size, cell, {
                        normalize: false
                    });
                });
            });
        };
    };
}

exports.default = validateNode;