function _typeof(o) { "@babel/helpers - typeof"; return _typeof = "function" == typeof Symbol && "symbol" == typeof Symbol.iterator ? function (o) { return typeof o; } : function (o) { return o && "function" == typeof Symbol && o.constructor === Symbol && o !== Symbol.prototype ? "symbol" : typeof o; }, _typeof(o); }
function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, _toPropertyKey(descriptor.key), descriptor); } }
function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); Object.defineProperty(Constructor, "prototype", { writable: false }); return Constructor; }
function _callSuper(t, o, e) { return o = _getPrototypeOf(o), _possibleConstructorReturn(t, _isNativeReflectConstruct() ? Reflect.construct(o, e || [], _getPrototypeOf(t).constructor) : o.apply(t, e)); }
function _possibleConstructorReturn(self, call) { if (call && (_typeof(call) === "object" || typeof call === "function")) { return call; } else if (call !== void 0) { throw new TypeError("Derived constructors may only return object or undefined"); } return _assertThisInitialized(self); }
function _assertThisInitialized(self) { if (self === void 0) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return self; }
function _isNativeReflectConstruct() { try { var t = !Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); } catch (t) {} return (_isNativeReflectConstruct = function _isNativeReflectConstruct() { return !!t; })(); }
function _getPrototypeOf(o) { _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf.bind() : function _getPrototypeOf(o) { return o.__proto__ || Object.getPrototypeOf(o); }; return _getPrototypeOf(o); }
function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function"); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, writable: true, configurable: true } }); Object.defineProperty(subClass, "prototype", { writable: false }); if (superClass) _setPrototypeOf(subClass, superClass); }
function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf ? Object.setPrototypeOf.bind() : function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }
function _defineProperty(obj, key, value) { key = _toPropertyKey(key); if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }
function _toPropertyKey(t) { var i = _toPrimitive(t, "string"); return "symbol" == _typeof(i) ? i : i + ""; }
function _toPrimitive(t, r) { if ("object" != _typeof(t) || !t) return t; var e = t[Symbol.toPrimitive]; if (void 0 !== e) { var i = e.call(t, r || "default"); if ("object" != _typeof(i)) return i; throw new TypeError("@@toPrimitive must return a primitive value."); } return ("string" === r ? String : Number)(t); }
import { Schema } from 'prosemirror-model';
import { Node } from 'prosemirror-model';
import { EditorState } from 'prosemirror-state';
import { CellSelection, mergeCells } from 'prosemirror-tables';
import { Transform } from 'prosemirror-transform';
import { EditorView } from 'prosemirror-view';
import * as React from 'react';
import { PARAGRAPH, TABLE_CELL, TEXT } from './NodeNames.js';
import { UICommand } from '@modusoperandi/licit-doc-attrs-step';
function isBlankParagraphNode(node) {
  if (!node) {
    return false;
  }
  if (node.type.name !== PARAGRAPH) {
    return false;
  }
  var firstChild = node.firstChild,
    lastChild = node.lastChild;
  if (!firstChild) {
    return true;
  }
  if (firstChild !== lastChild) {
    return false;
  }
  return firstChild.type.name === TEXT && firstChild.text === ' ';
}
function purgeConsecutiveBlankParagraphNodes(tr, schema) {
  var paragraph = schema.nodes[PARAGRAPH];
  var cell = schema.nodes[TABLE_CELL];
  if (!paragraph || !cell) {
    return tr;
  }
  var _tr = tr,
    doc = _tr.doc,
    selection = _tr.selection;
  if (!(selection instanceof CellSelection)) {
    return tr;
  }
  var from = selection.from,
    to = selection.to;
  var paragraphPoses = [];
  doc.nodesBetween(from, to, function (node, pos, parentNode) {
    if (node.type === paragraph && parentNode.type === cell) {
      if (isBlankParagraphNode(node)) {
        var $pos = tr.doc.resolve(pos);
        if (isBlankParagraphNode($pos.nodeBefore)) {
          paragraphPoses.push(pos);
        }
      }
      return false;
    } else {
      return true;
    }
  });
  paragraphPoses.reverse().forEach(function (pos) {
    var cell = tr.doc.nodeAt(pos);
    tr = tr["delete"](pos, pos + cell.nodeSize);
  });
  return tr;
}
var TableMergeCellsCommand = /*#__PURE__*/function (_UICommand) {
  function TableMergeCellsCommand() {
    var _this;
    _classCallCheck(this, TableMergeCellsCommand);
    for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
      args[_key] = arguments[_key];
    }
    _this = _callSuper(this, TableMergeCellsCommand, [].concat(args));
    _defineProperty(_this, "execute", function (state, dispatch, view) {
      var tr = state.tr,
        schema = state.schema,
        selection = state.selection;
      var endTr = tr;
      if (selection instanceof CellSelection) {
        mergeCells(state, function (nextTr) {
          endTr = nextTr;
        }, view);
        // Also merge onsecutive blank paragraphs into one.
        endTr = purgeConsecutiveBlankParagraphNodes(endTr, schema);
      }
      var changed = endTr.docChanged || endTr !== tr;
      changed && dispatch && dispatch(endTr);
      return changed;
    });
    _defineProperty(_this, "waitForUserInput", function (_state, _dispatch, _view, _event) {
      return Promise.resolve(undefined);
    });
    _defineProperty(_this, "executeWithUserInput", function (_state, _dispatch, _view, _inputs) {
      return false;
    });
    return _this;
  }
  _inherits(TableMergeCellsCommand, _UICommand);
  return _createClass(TableMergeCellsCommand, [{
    key: "cancel",
    value: function cancel() {
      return null;
    }
  }]);
}(UICommand);
export default TableMergeCellsCommand;