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Viewing file:     ArrowKeyStepper.js (9.1 KB)      -rw-r--r--

"use strict";

var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");

var _interopRequireWildcard = require("@babel/runtime/helpers/interopRequireWildcard");

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports["default"] = void 0;

var _classCallCheck2 = _interopRequireDefault(require("@babel/runtime/helpers/classCallCheck"));

var _createClass2 = _interopRequireDefault(require("@babel/runtime/helpers/createClass"));

var _possibleConstructorReturn2 = _interopRequireDefault(require("@babel/runtime/helpers/possibleConstructorReturn"));

var _getPrototypeOf3 = _interopRequireDefault(require("@babel/runtime/helpers/getPrototypeOf"));

var _assertThisInitialized2 = _interopRequireDefault(require("@babel/runtime/helpers/assertThisInitialized"));

var _inherits2 = _interopRequireDefault(require("@babel/runtime/helpers/inherits"));

var _defineProperty2 = _interopRequireDefault(require("@babel/runtime/helpers/defineProperty"));

var React = _interopRequireWildcard(require("react"));

var _reactLifecyclesCompat = require("react-lifecycles-compat");

var _Grid = require("../Grid");

var _types = require("./types");

var _propTypes = _interopRequireDefault(require("prop-types"));

var _class, _temp;

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) { (0, _defineProperty2["default"])(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; }

var ArrowKeyStepper = (_temp = _class =
/*#__PURE__*/
function (_React$PureComponent) {
  (0, _inherits2["default"])(ArrowKeyStepper, _React$PureComponent);

  function ArrowKeyStepper() {
    var _getPrototypeOf2;

    var _this;

    (0, _classCallCheck2["default"])(this, ArrowKeyStepper);

    for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
      args[_key] = arguments[_key];
    }

    _this = (0, _possibleConstructorReturn2["default"])(this, (_getPrototypeOf2 = (0, _getPrototypeOf3["default"])(ArrowKeyStepper)).call.apply(_getPrototypeOf2, [this].concat(args)));
    (0, _defineProperty2["default"])((0, _assertThisInitialized2["default"])(_this), "state", {
      scrollToColumn: 0,
      scrollToRow: 0,
      instanceProps: {
        prevScrollToColumn: 0,
        prevScrollToRow: 0
      }
    });
    (0, _defineProperty2["default"])((0, _assertThisInitialized2["default"])(_this), "_columnStartIndex", 0);
    (0, _defineProperty2["default"])((0, _assertThisInitialized2["default"])(_this), "_columnStopIndex", 0);
    (0, _defineProperty2["default"])((0, _assertThisInitialized2["default"])(_this), "_rowStartIndex", 0);
    (0, _defineProperty2["default"])((0, _assertThisInitialized2["default"])(_this), "_rowStopIndex", 0);
    (0, _defineProperty2["default"])((0, _assertThisInitialized2["default"])(_this), "_onKeyDown", function (event) {
      var _this$props = _this.props,
          columnCount = _this$props.columnCount,
          disabled = _this$props.disabled,
          mode = _this$props.mode,
          rowCount = _this$props.rowCount;

      if (disabled) {
        return;
      }

      var _this$_getScrollState = _this._getScrollState(),
          scrollToColumnPrevious = _this$_getScrollState.scrollToColumn,
          scrollToRowPrevious = _this$_getScrollState.scrollToRow;

      var _this$_getScrollState2 = _this._getScrollState(),
          scrollToColumn = _this$_getScrollState2.scrollToColumn,
          scrollToRow = _this$_getScrollState2.scrollToRow; // The above cases all prevent default event event behavior.
      // This is to keep the grid from scrolling after the snap-to update.


      switch (event.key) {
        case 'ArrowDown':
          scrollToRow = mode === 'cells' ? Math.min(scrollToRow + 1, rowCount - 1) : Math.min(_this._rowStopIndex + 1, rowCount - 1);
          break;

        case 'ArrowLeft':
          scrollToColumn = mode === 'cells' ? Math.max(scrollToColumn - 1, 0) : Math.max(_this._columnStartIndex - 1, 0);
          break;

        case 'ArrowRight':
          scrollToColumn = mode === 'cells' ? Math.min(scrollToColumn + 1, columnCount - 1) : Math.min(_this._columnStopIndex + 1, columnCount - 1);
          break;

        case 'ArrowUp':
          scrollToRow = mode === 'cells' ? Math.max(scrollToRow - 1, 0) : Math.max(_this._rowStartIndex - 1, 0);
          break;
      }

      if (scrollToColumn !== scrollToColumnPrevious || scrollToRow !== scrollToRowPrevious) {
        event.preventDefault();

        _this._updateScrollState({
          scrollToColumn: scrollToColumn,
          scrollToRow: scrollToRow
        });
      }
    });
    (0, _defineProperty2["default"])((0, _assertThisInitialized2["default"])(_this), "_onSectionRendered", function (_ref) {
      var columnStartIndex = _ref.columnStartIndex,
          columnStopIndex = _ref.columnStopIndex,
          rowStartIndex = _ref.rowStartIndex,
          rowStopIndex = _ref.rowStopIndex;
      _this._columnStartIndex = columnStartIndex;
      _this._columnStopIndex = columnStopIndex;
      _this._rowStartIndex = rowStartIndex;
      _this._rowStopIndex = rowStopIndex;
    });
    return _this;
  }

  (0, _createClass2["default"])(ArrowKeyStepper, [{
    key: "setScrollIndexes",
    value: function setScrollIndexes(_ref2) {
      var scrollToColumn = _ref2.scrollToColumn,
          scrollToRow = _ref2.scrollToRow;
      this.setState({
        scrollToRow: scrollToRow,
        scrollToColumn: scrollToColumn
      });
    }
  }, {
    key: "render",
    value: function render() {
      var _this$props2 = this.props,
          className = _this$props2.className,
          children = _this$props2.children;

      var _this$_getScrollState3 = this._getScrollState(),
          scrollToColumn = _this$_getScrollState3.scrollToColumn,
          scrollToRow = _this$_getScrollState3.scrollToRow;

      return React.createElement("div", {
        className: className,
        onKeyDown: this._onKeyDown
      }, children({
        onSectionRendered: this._onSectionRendered,
        scrollToColumn: scrollToColumn,
        scrollToRow: scrollToRow
      }));
    }
  }, {
    key: "_getScrollState",
    value: function _getScrollState() {
      return this.props.isControlled ? this.props : this.state;
    }
  }, {
    key: "_updateScrollState",
    value: function _updateScrollState(_ref3) {
      var scrollToColumn = _ref3.scrollToColumn,
          scrollToRow = _ref3.scrollToRow;
      var _this$props3 = this.props,
          isControlled = _this$props3.isControlled,
          onScrollToChange = _this$props3.onScrollToChange;

      if (typeof onScrollToChange === 'function') {
        onScrollToChange({
          scrollToColumn: scrollToColumn,
          scrollToRow: scrollToRow
        });
      }

      if (!isControlled) {
        this.setState({
          scrollToColumn: scrollToColumn,
          scrollToRow: scrollToRow
        });
      }
    }
  }], [{
    key: "getDerivedStateFromProps",
    value: function getDerivedStateFromProps(nextProps, prevState) {
      if (nextProps.isControlled) {
        return {};
      }

      if (nextProps.scrollToColumn !== prevState.instanceProps.prevScrollToColumn || nextProps.scrollToRow !== prevState.instanceProps.prevScrollToRow) {
        return _objectSpread({}, prevState, {
          scrollToColumn: nextProps.scrollToColumn,
          scrollToRow: nextProps.scrollToRow,
          instanceProps: {
            prevScrollToColumn: nextProps.scrollToColumn,
            prevScrollToRow: nextProps.scrollToRow
          }
        });
      }

      return {};
    }
  }]);
  return ArrowKeyStepper;
}(React.PureComponent), (0, _defineProperty2["default"])(_class, "propTypes", process.env.NODE_ENV === 'production' ? null : {
  "children": _propTypes["default"].func.isRequired,
  "className": _propTypes["default"].string,
  "columnCount": _propTypes["default"].number.isRequired,
  "disabled": _propTypes["default"].bool.isRequired,
  "isControlled": _propTypes["default"].bool.isRequired,
  "mode": _propTypes["default"].oneOf(["cells", "edges"]).isRequired,
  "onScrollToChange": _propTypes["default"].func,
  "rowCount": _propTypes["default"].number.isRequired,
  "scrollToColumn": _propTypes["default"].number.isRequired,
  "scrollToRow": _propTypes["default"].number.isRequired
}), _temp);
(0, _defineProperty2["default"])(ArrowKeyStepper, "defaultProps", {
  disabled: false,
  isControlled: false,
  mode: 'edges',
  scrollToColumn: 0,
  scrollToRow: 0
});
(0, _reactLifecyclesCompat.polyfill)(ArrowKeyStepper);
var _default = ArrowKeyStepper;
exports["default"] = _default;