handsontable/3rdparty/walkontable/src/renderer/rows.js

Handsontable is a JavaScript Spreadsheet Component available for React, Angular and Vue.

"use strict";

function _typeof(obj) { "@babel/helpers - typeof"; if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }

require("core-js/modules/es.object.get-prototype-of.js");

require("core-js/modules/es.object.set-prototype-of.js");

exports.__esModule = true;
exports.default = void 0;

var _console = require("./../../../../helpers/console");

var _templateLiteralTag = require("./../../../../helpers/templateLiteralTag");

var _orderView = require("./../utils/orderView");

var _base = _interopRequireDefault(require("./_base"));

var _templateObject;

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function _taggedTemplateLiteral(strings, raw) { if (!raw) { raw = strings.slice(0); } return Object.freeze(Object.defineProperties(strings, { raw: { value: Object.freeze(raw) } })); }

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, descriptor.key, descriptor); } }

function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }

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 } }); if (superClass) _setPrototypeOf(subClass, superClass); }

function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }

function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function _createSuperInternal() { var Super = _getPrototypeOf(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = _getPrototypeOf(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return _possibleConstructorReturn(this, result); }; }

function _possibleConstructorReturn(self, call) { if (call && (_typeof(call) === "object" || typeof call === "function")) { return call; } 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() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Date.prototype.toString.call(Reflect.construct(Date, [], function () {})); return true; } catch (e) { return false; } }

function _getPrototypeOf(o) { _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) { return o.__proto__ || Object.getPrototypeOf(o); }; return _getPrototypeOf(o); }

var performanceWarningAppeared = false;
/**
 * Rows renderer responsible for managing (inserting, tracking, rendering) TR elements belongs to TBODY.
 *
 *   <tbody> (root node)
 *     ├ <tr>   \
 *     ├ <tr>    \
 *     ├ <tr>     - RowsRenderer
 *     ├ <tr>    /
 *     └ <tr>   /.
 *
 * @class {RowsRenderer}
 */

var RowsRenderer = /*#__PURE__*/function (_BaseRenderer) {
  _inherits(RowsRenderer, _BaseRenderer);

  var _super = _createSuper(RowsRenderer);

  function RowsRenderer(rootNode) {
    var _this;

    _classCallCheck(this, RowsRenderer);

    _this = _super.call(this, 'TR', rootNode);
    /**
     * Cache for OrderView classes connected to specified node.
     *
     * @type {WeakMap}
     */

    _this.orderView = new _orderView.OrderView(rootNode, function (sourceRowIndex) {
      return _this.nodesPool.obtain(sourceRowIndex);
    }, _this.nodeType);
    return _this;
  }
  /**
   * Returns currently rendered node.
   *
   * @param {string} visualIndex Visual index of the rendered node (it always goeas from 0 to N).
   * @returns {HTMLTableRowElement}
   */


  _createClass(RowsRenderer, [{
    key: "getRenderedNode",
    value: function getRenderedNode(visualIndex) {
      return this.orderView.getNode(visualIndex);
    }
    /**
     * Renders the cells.
     */

  }, {
    key: "render",
    value: function render() {
      var rowsToRender = this.table.rowsToRender;

      if (!performanceWarningAppeared && rowsToRender > 1000) {
        performanceWarningAppeared = true;
        (0, _console.warn)((0, _templateLiteralTag.toSingleLine)(_templateObject || (_templateObject = _taggedTemplateLiteral(["Performance tip: Handsontable rendered more than 1000 visible rows. Consider limiting \n        the number of rendered rows by specifying the table height and/or turning off the \"renderAllRows\" option."], ["Performance tip: Handsontable rendered more than 1000 visible rows. Consider limiting\\x20\n        the number of rendered rows by specifying the table height and/or turning off the \"renderAllRows\" option."]))));
      }

      this.orderView.setSize(rowsToRender).setOffset(this.table.renderedRowToSource(0)).start();

      for (var visibleRowIndex = 0; visibleRowIndex < rowsToRender; visibleRowIndex++) {
        this.orderView.render();
      }

      this.orderView.end();
    }
  }]);

  return RowsRenderer;
}(_base.default);

exports.default = RowsRenderer;