var _createClass = 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); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();

var _get = function get(object, property, receiver) { if (object === null) object = Function.prototype; var desc = Object.getOwnPropertyDescriptor(object, property); if (desc === undefined) { var parent = Object.getPrototypeOf(object); if (parent === null) { return undefined; } else { return get(parent, property, receiver); } } else if ("value" in desc) { return desc.value; } else { var getter = desc.get; if (getter === undefined) { return undefined; } return getter.call(receiver); } };

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }

function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }

import BasePlugin from './../_base.js';
import Hooks from './../../pluginHooks';
import { arrayEach } from './../../helpers/array';
import { addClass, removeClass, offset } from './../../helpers/dom/element';
import { rangeEach } from './../../helpers/number';
import EventManager from './../../eventManager';
import { registerPlugin } from './../../plugins';
import RowsMapper from './rowsMapper';
import BacklightUI from './ui/backlight';
import GuidelineUI from './ui/guideline';
import { CellCoords } from './../../3rdparty/walkontable/src';

Hooks.getSingleton().register('beforeRowMove');
Hooks.getSingleton().register('afterRowMove');
Hooks.getSingleton().register('unmodifyRow');

var privatePool = new WeakMap();
var CSS_PLUGIN = 'ht__manualRowMove';
var CSS_SHOW_UI = 'show-ui';
var CSS_ON_MOVING = 'on-moving--rows';
var CSS_AFTER_SELECTION = 'after-selection--rows';

/**
 * @plugin ManualRowMove
 *
 * @description
 * This plugin allows to change rows order.
 *
 * API:
 * - moveRow - move single row to the new position.
 * - moveRows - move many rows (as an array of indexes) to the new position.
 *
 * If you want apply visual changes, you have to call manually the render() method on the instance of handsontable.
 *
 * UI components:
 * - backlight - highlight of selected rows.
 * - guideline - line which shows where rows has been moved.
 *
 * @class ManualRowMove
 * @plugin ManualRowMove
 */

var ManualRowMove = function (_BasePlugin) {
  _inherits(ManualRowMove, _BasePlugin);

  function ManualRowMove(hotInstance) {
    _classCallCheck(this, ManualRowMove);

    /**
     * Set up WeakMap of plugin to sharing private parameters;
     */
    var _this = _possibleConstructorReturn(this, (ManualRowMove.__proto__ || Object.getPrototypeOf(ManualRowMove)).call(this, hotInstance));

    privatePool.set(_this, {
      rowsToMove: [],
      pressed: void 0,
      disallowMoving: void 0,
      target: {
        eventPageY: void 0,
        coords: void 0,
        TD: void 0,
        row: void 0
      }
    });

    /**
     * List of last removed row indexes.
     *
     * @type {Array}
     */
    _this.removedRows = [];
    /**
     * Object containing visual row indexes mapped to data source indexes.
     *
     * @type {RowsMapper}
     */
    _this.rowsMapper = new RowsMapper(_this);
    /**
     * Event Manager object.
     *
     * @type {Object}
     */
    _this.eventManager = new EventManager(_this);
    /**
     * Backlight UI object.
     *
     * @type {Object}
     */
    _this.backlight = new BacklightUI(hotInstance);
    /**
     * Guideline UI object.
     *
     * @type {Object}
     */
    _this.guideline = new GuidelineUI(hotInstance);
    return _this;
  }

  /**
   * Check if plugin is enabled.
   *
   * @returns {Boolean}
   */


  _createClass(ManualRowMove, [{
    key: 'isEnabled',
    value: function isEnabled() {
      return !!this.hot.getSettings().manualRowMove;
    }

    /**
     * Enable the plugin.
     */

  }, {
    key: 'enablePlugin',
    value: function enablePlugin() {
      var _this2 = this;

      if (this.enabled) {
        return;
      }

      this.addHook('beforeOnCellMouseDown', function (event, coords, TD, blockCalculations) {
        return _this2.onBeforeOnCellMouseDown(event, coords, TD, blockCalculations);
      });
      this.addHook('beforeOnCellMouseOver', function (event, coords, TD, blockCalculations) {
        return _this2.onBeforeOnCellMouseOver(event, coords, TD, blockCalculations);
      });
      this.addHook('afterScrollHorizontally', function () {
        return _this2.onAfterScrollHorizontally();
      });
      this.addHook('modifyRow', function (row, source) {
        return _this2.onModifyRow(row, source);
      });
      this.addHook('beforeRemoveRow', function (index, amount) {
        return _this2.onBeforeRemoveRow(index, amount);
      });
      this.addHook('afterRemoveRow', function (index, amount) {
        return _this2.onAfterRemoveRow(index, amount);
      });
      this.addHook('afterCreateRow', function (index, amount) {
        return _this2.onAfterCreateRow(index, amount);
      });
      this.addHook('afterLoadData', function (firstTime) {
        return _this2.onAfterLoadData(firstTime);
      });
      this.addHook('beforeColumnSort', function (column, order) {
        return _this2.onBeforeColumnSort(column, order);
      });
      this.addHook('unmodifyRow', function (row) {
        return _this2.onUnmodifyRow(row);
      });

      this.registerEvents();

      // TODO: move adding plugin classname to BasePlugin.
      addClass(this.hot.rootElement, CSS_PLUGIN);

      _get(ManualRowMove.prototype.__proto__ || Object.getPrototypeOf(ManualRowMove.prototype), 'enablePlugin', this).call(this);
    }

    /**
     * Updates the plugin to use the latest options you have specified.
     */

  }, {
    key: 'updatePlugin',
    value: function updatePlugin() {
      this.disablePlugin();
      this.enablePlugin();

      this.onAfterPluginsInitialized();

      _get(ManualRowMove.prototype.__proto__ || Object.getPrototypeOf(ManualRowMove.prototype), 'updatePlugin', this).call(this);
    }

    /**
     * Disable plugin for this Handsontable instance.
     */

  }, {
    key: 'disablePlugin',
    value: function disablePlugin() {
      var pluginSettings = this.hot.getSettings().manualRowMove;

      if (Array.isArray(pluginSettings)) {
        this.rowsMapper.clearMap();
      }

      removeClass(this.hot.rootElement, CSS_PLUGIN);

      this.unregisterEvents();
      this.backlight.destroy();
      this.guideline.destroy();

      _get(ManualRowMove.prototype.__proto__ || Object.getPrototypeOf(ManualRowMove.prototype), 'disablePlugin', this).call(this);
    }

    /**
     * Move a single row.
     *
     * @param {Number} row Visual row index to be moved.
     * @param {Number} target Visual row index being a target for the moved row.
     */

  }, {
    key: 'moveRow',
    value: function moveRow(row, target) {
      this.moveRows([row], target);
    }

    /**
     * Move multiple rows.
     *
     * @param {Array} rows Array of visual row indexes to be moved.
     * @param {Number} target Visual row index being a target for the moved rows.
     */

  }, {
    key: 'moveRows',
    value: function moveRows(rows, target) {
      var _this3 = this;

      var priv = privatePool.get(this);
      var beforeMoveHook = this.hot.runHooks('beforeRowMove', rows, target);

      priv.disallowMoving = beforeMoveHook === false;

      if (!priv.disallowMoving) {
        // first we need to rewrite an visual indexes to logical for save reference after move
        arrayEach(rows, function (row, index, array) {
          array[index] = _this3.rowsMapper.getValueByIndex(row);
        });

        // next, when we have got an logical indexes, we can move rows
        arrayEach(rows, function (row, index) {
          var actualPosition = _this3.rowsMapper.getIndexByValue(row);

          if (actualPosition !== target) {
            _this3.rowsMapper.moveRow(actualPosition, target + index);
          }
        });

        // after moving we have to clear rowsMapper from null entries
        this.rowsMapper.clearNull();
      }

      this.hot.runHooks('afterRowMove', rows, target);
    }

    /**
     * Correct the cell selection after the move action. Fired only when action was made with a mouse.
     * That means that changing the row order using the API won't correct the selection.
     *
     * @private
     * @param {Number} startRow Visual row index for the start of the selection.
     * @param {Number} endRow Visual row index for the end of the selection.
     */

  }, {
    key: 'changeSelection',
    value: function changeSelection(startRow, endRow) {
      var selection = this.hot.selection;
      var lastColIndex = this.hot.countCols() - 1;

      selection.setRangeStartOnly(new CellCoords(startRow, 0));
      selection.setRangeEnd(new CellCoords(endRow, lastColIndex), false);
    }

    /**
     * Get the sum of the heights of rows in the provided range.
     *
     * @private
     * @param {Number} from Visual row index.
     * @param {Number} to Visual row index.
     * @returns {Number}
     */

  }, {
    key: 'getRowsHeight',
    value: function getRowsHeight(from, to) {
      var height = 0;

      for (var i = from; i < to; i++) {
        var rowHeight = this.hot.view.wt.wtTable.getRowHeight(i) || 23;

        height += rowHeight;
      }

      return height;
    }

    /**
     * Load initial settings when persistent state is saved or when plugin was initialized as an array.
     *
     * @private
     */

  }, {
    key: 'initialSettings',
    value: function initialSettings() {
      var pluginSettings = this.hot.getSettings().manualRowMove;

      if (Array.isArray(pluginSettings)) {
        this.moveRows(pluginSettings, 0);
      } else if (pluginSettings !== void 0) {
        var persistentState = this.persistentStateLoad();

        if (persistentState.length) {
          this.moveRows(persistentState, 0);
        }
      }
    }

    /**
     * Check if the provided row is in the fixedRowsTop section.
     *
     * @private
     * @param {Number} row Visual row index to check.
     * @returns {Boolean}
     */

  }, {
    key: 'isFixedRowTop',
    value: function isFixedRowTop(row) {
      return row < this.hot.getSettings().fixedRowsTop;
    }

    /**
     * Check if the provided row is in the fixedRowsBottom section.
     *
     * @private
     * @param {Number} row Visual row index to check.
     * @returns {Boolean}
     */

  }, {
    key: 'isFixedRowBottom',
    value: function isFixedRowBottom(row) {
      return row > this.hot.getSettings().fixedRowsBottom;
    }

    /**
     * Save the manual row positions to the persistent state.
     *
     * @private
     */

  }, {
    key: 'persistentStateSave',
    value: function persistentStateSave() {
      this.hot.runHooks('persistentStateSave', 'manualRowMove', this.rowsMapper._arrayMap);
    }

    /**
     * Load the manual row positions from the persistent state.
     *
     * @private
     * @returns {Array} Stored state.
     */

  }, {
    key: 'persistentStateLoad',
    value: function persistentStateLoad() {
      var storedState = {};

      this.hot.runHooks('persistentStateLoad', 'manualRowMove', storedState);

      return storedState.value ? storedState.value : [];
    }

    /**
     * Prepare array of indexes based on actual selection.
     *
     * @private
     * @returns {Array}
     */

  }, {
    key: 'prepareRowsToMoving',
    value: function prepareRowsToMoving() {
      var selection = this.hot.getSelectedRange();
      var selectedRows = [];

      if (!selection) {
        return selectedRows;
      }

      var from = selection.from,
          to = selection.to;

      var start = Math.min(from.row, to.row);
      var end = Math.max(from.row, to.row);

      rangeEach(start, end, function (i) {
        selectedRows.push(i);
      });

      return selectedRows;
    }

    /**
     * Update the UI visual position.
     *
     * @private
     */

  }, {
    key: 'refreshPositions',
    value: function refreshPositions() {
      var priv = privatePool.get(this);
      var coords = priv.target.coords;
      var firstVisible = this.hot.view.wt.wtTable.getFirstVisibleRow();
      var lastVisible = this.hot.view.wt.wtTable.getLastVisibleRow();
      var fixedRows = this.hot.getSettings().fixedRowsTop;
      var countRows = this.hot.countRows();

      if (coords.row < fixedRows && firstVisible > 0) {
        this.hot.scrollViewportTo(firstVisible - 1);
      }
      if (coords.row >= lastVisible && lastVisible < countRows) {
        this.hot.scrollViewportTo(lastVisible + 1, undefined, true);
      }

      var wtTable = this.hot.view.wt.wtTable;
      var TD = priv.target.TD;
      var rootElementOffset = offset(this.hot.rootElement);
      var tdOffsetTop = this.hot.view.THEAD.offsetHeight + this.getRowsHeight(0, coords.row);
      var mouseOffsetTop = priv.target.eventPageY - rootElementOffset.top + wtTable.holder.scrollTop;
      var hiderHeight = wtTable.hider.offsetHeight;
      var tbodyOffsetTop = wtTable.TBODY.offsetTop;
      var backlightElemMarginTop = this.backlight.getOffset().top;
      var backlightElemHeight = this.backlight.getSize().height;

      if (rootElementOffset.top + wtTable.holder.offsetHeight < priv.target.eventPageY) {
        priv.target.coords.row++;
      }

      if (this.isFixedRowTop(coords.row)) {
        tdOffsetTop += wtTable.holder.scrollTop;
      }

      // todo: fixedRowsBottom
      // if (this.isFixedRowBottom(coords.row)) {
      //
      // }

      if (coords.row < 0) {
        // if hover on colHeader
        priv.target.row = firstVisible > 0 ? firstVisible - 1 : firstVisible;
      } else if (TD.offsetHeight / 2 + tdOffsetTop <= mouseOffsetTop) {
        // if hover on lower part of TD
        priv.target.row = coords.row + 1;
        // unfortunately first row is bigger than rest
        tdOffsetTop += coords.row === 0 ? TD.offsetHeight - 1 : TD.offsetHeight;
      } else {
        // elsewhere on table
        priv.target.row = coords.row;
      }

      var backlightTop = mouseOffsetTop;
      var guidelineTop = tdOffsetTop;

      if (mouseOffsetTop + backlightElemHeight + backlightElemMarginTop >= hiderHeight) {
        // prevent display backlight below table
        backlightTop = hiderHeight - backlightElemHeight - backlightElemMarginTop;
      } else if (mouseOffsetTop + backlightElemMarginTop < tbodyOffsetTop) {
        // prevent display above below table
        backlightTop = tbodyOffsetTop + Math.abs(backlightElemMarginTop);
      }

      if (tdOffsetTop >= hiderHeight - 1) {
        // prevent display guideline below table
        guidelineTop = hiderHeight - 1;
      }

      var topOverlayHeight = 0;
      if (this.hot.view.wt.wtOverlays.topOverlay) {
        topOverlayHeight = this.hot.view.wt.wtOverlays.topOverlay.clone.wtTable.TABLE.offsetHeight;
      }

      if (coords.row >= fixedRows && guidelineTop - wtTable.holder.scrollTop < topOverlayHeight) {
        this.hot.scrollViewportTo(coords.row);
      }

      this.backlight.setPosition(backlightTop);
      this.guideline.setPosition(guidelineTop);
    }

    /**
     * This method checks arrayMap from rowsMapper and updates the rowsMapper if it's necessary.
     *
     * @private
     */

  }, {
    key: 'updateRowsMapper',
    value: function updateRowsMapper() {
      var countRows = this.hot.countSourceRows();
      var rowsMapperLen = this.rowsMapper._arrayMap.length;

      if (rowsMapperLen === 0) {
        this.rowsMapper.createMap(countRows || this.hot.getSettings().startRows);
      } else if (rowsMapperLen < countRows) {
        var diff = countRows - rowsMapperLen;

        this.rowsMapper.insertItems(rowsMapperLen, diff);
      } else if (rowsMapperLen > countRows) {
        var maxIndex = countRows - 1;
        var rowsToRemove = [];

        arrayEach(this.rowsMapper._arrayMap, function (value, index, array) {
          if (value > maxIndex) {
            rowsToRemove.push(index);
          }
        });

        this.rowsMapper.removeItems(rowsToRemove);
      }
    }

    /**
     * Bind the events used by the plugin.
     *
     * @private
     */

  }, {
    key: 'registerEvents',
    value: function registerEvents() {
      var _this4 = this;

      this.eventManager.addEventListener(document.documentElement, 'mousemove', function (event) {
        return _this4.onMouseMove(event);
      });
      this.eventManager.addEventListener(document.documentElement, 'mouseup', function () {
        return _this4.onMouseUp();
      });
    }

    /**
     * Unbind the events used by the plugin.
     *
     * @private
     */

  }, {
    key: 'unregisterEvents',
    value: function unregisterEvents() {
      this.eventManager.clear();
    }

    /**
     * `beforeColumnSort` hook callback. If user uses the sorting, manual row moving is disabled.
     *
     * @private
     * @param {Number} column Column index where soring is present
     * @param {*} order State of sorting. ASC/DESC/None
     */

  }, {
    key: 'onBeforeColumnSort',
    value: function onBeforeColumnSort(column, order) {
      var priv = privatePool.get(this);

      priv.disallowMoving = order !== void 0;
    }

    /**
     * Change the behavior of selection / dragging.
     *
     * @private
     * @param {MouseEvent} event
     * @param {CellCoords} coords
     * @param {HTMLElement} TD
     * @param {Object} blockCalculations
     */

  }, {
    key: 'onBeforeOnCellMouseDown',
    value: function onBeforeOnCellMouseDown(event, coords, TD, blockCalculations) {
      var wtTable = this.hot.view.wt.wtTable;
      var isHeaderSelection = this.hot.selection.selectedHeader.rows;
      var selection = this.hot.getSelectedRange();
      var priv = privatePool.get(this);

      if (!selection || !isHeaderSelection || priv.pressed || event.button !== 0) {
        priv.pressed = false;
        priv.rowsToMove.length = 0;
        removeClass(this.hot.rootElement, [CSS_ON_MOVING, CSS_SHOW_UI]);
        return;
      }

      var guidelineIsNotReady = this.guideline.isBuilt() && !this.guideline.isAppended();
      var backlightIsNotReady = this.backlight.isBuilt() && !this.backlight.isAppended();

      if (guidelineIsNotReady && backlightIsNotReady) {
        this.guideline.appendTo(wtTable.hider);
        this.backlight.appendTo(wtTable.hider);
      }

      var from = selection.from,
          to = selection.to;

      var start = Math.min(from.row, to.row);
      var end = Math.max(from.row, to.row);

      if (coords.col < 0 && coords.row >= start && coords.row <= end) {
        blockCalculations.row = true;
        priv.pressed = true;
        priv.target.eventPageY = event.pageY;
        priv.target.coords = coords;
        priv.target.TD = TD;
        priv.rowsToMove = this.prepareRowsToMoving();

        var leftPos = wtTable.holder.scrollLeft + wtTable.getColumnWidth(-1);

        this.backlight.setPosition(null, leftPos);
        this.backlight.setSize(wtTable.hider.offsetWidth - leftPos, this.getRowsHeight(start, end + 1));
        this.backlight.setOffset((this.getRowsHeight(start, coords.row) + event.layerY) * -1, null);

        addClass(this.hot.rootElement, CSS_ON_MOVING);

        this.refreshPositions();
      } else {
        removeClass(this.hot.rootElement, CSS_AFTER_SELECTION);
        priv.pressed = false;
        priv.rowsToMove.length = 0;
      }
    }

    /**
     * 'mouseMove' event callback. Fired when pointer move on document.documentElement.
     *
     * @private
     * @param {MouseEvent} event `mousemove` event properties.
     */

  }, {
    key: 'onMouseMove',
    value: function onMouseMove(event) {
      var priv = privatePool.get(this);

      if (!priv.pressed) {
        return;
      }

      // callback for browser which doesn't supports CSS pointer-event: none
      if (event.realTarget === this.backlight.element) {
        var height = this.backlight.getSize().height;
        this.backlight.setSize(null, 0);

        setTimeout(function () {
          this.backlight.setPosition(null, height);
        });
      }

      priv.target.eventPageY = event.pageY;
      this.refreshPositions();
    }

    /**
     * 'beforeOnCellMouseOver' hook callback. Fired when pointer was over cell.
     *
     * @private
     * @param {MouseEvent} event `mouseover` event properties.
     * @param {CellCoords} coords Cell coordinates where was fired event.
     * @param {HTMLElement} TD Cell represented as HTMLElement.
     * @param {Object} blockCalculations Object which contains information about blockCalculation for row, column or cells.
     */

  }, {
    key: 'onBeforeOnCellMouseOver',
    value: function onBeforeOnCellMouseOver(event, coords, TD, blockCalculations) {
      var selectedRange = this.hot.getSelectedRange();
      var priv = privatePool.get(this);

      if (!selectedRange || !priv.pressed) {
        return;
      }

      if (priv.rowsToMove.indexOf(coords.row) > -1) {
        removeClass(this.hot.rootElement, CSS_SHOW_UI);
      } else {
        addClass(this.hot.rootElement, CSS_SHOW_UI);
      }

      blockCalculations.row = true;
      blockCalculations.column = true;
      blockCalculations.cell = true;
      priv.target.coords = coords;
      priv.target.TD = TD;
    }

    /**
     * `onMouseUp` hook callback.
     *
     * @private
     */

  }, {
    key: 'onMouseUp',
    value: function onMouseUp() {
      var priv = privatePool.get(this);
      var target = priv.target.row;
      var rowsLen = priv.rowsToMove.length;

      priv.pressed = false;
      priv.backlightHeight = 0;

      removeClass(this.hot.rootElement, [CSS_ON_MOVING, CSS_SHOW_UI, CSS_AFTER_SELECTION]);

      if (this.hot.selection.selectedHeader.rows) {
        addClass(this.hot.rootElement, CSS_AFTER_SELECTION);
      }

      if (rowsLen < 1 || target === void 0 || priv.rowsToMove.indexOf(target) > -1 || priv.rowsToMove[rowsLen - 1] === target - 1) {
        return;
      }

      this.moveRows(priv.rowsToMove, target);

      this.persistentStateSave();
      this.hot.render();

      if (!priv.disallowMoving) {
        var selectionStart = this.rowsMapper.getIndexByValue(priv.rowsToMove[0]);
        var selectionEnd = this.rowsMapper.getIndexByValue(priv.rowsToMove[rowsLen - 1]);
        this.changeSelection(selectionStart, selectionEnd);
      }

      priv.rowsToMove.length = 0;
    }

    /**
     * `afterScrollHorizontally` hook callback. Fired the table was scrolled horizontally.
     *
     * @private
     */

  }, {
    key: 'onAfterScrollHorizontally',
    value: function onAfterScrollHorizontally() {
      var wtTable = this.hot.view.wt.wtTable;
      var headerWidth = wtTable.getColumnWidth(-1);
      var scrollLeft = wtTable.holder.scrollLeft;
      var posLeft = headerWidth + scrollLeft;

      this.backlight.setPosition(null, posLeft);
      this.backlight.setSize(wtTable.hider.offsetWidth - posLeft);
    }

    /**
     * `afterCreateRow` hook callback.
     *
     * @private
     * @param {Number} index Index of the created row.
     * @param {Number} amount Amount of created rows.
     */

  }, {
    key: 'onAfterCreateRow',
    value: function onAfterCreateRow(index, amount) {
      this.rowsMapper.shiftItems(index, amount);
    }

    /**
     * On before remove row listener.
     *
     * @private
     * @param {Number} index Row index.
     * @param {Number} amount Defines how many rows removed.
     */

  }, {
    key: 'onBeforeRemoveRow',
    value: function onBeforeRemoveRow(index, amount) {
      var _this5 = this;

      this.removedRows.length = 0;

      if (index !== false) {
        // Collect physical row index.
        rangeEach(index, index + amount - 1, function (removedIndex) {
          _this5.removedRows.push(_this5.hot.runHooks('modifyRow', removedIndex, _this5.pluginName));
        });
      }
    }

    /**
     * `afterRemoveRow` hook callback.
     *
     * @private
     * @param {Number} index Index of the removed row.
     * @param {Number} amount Amount of removed rows.
     */

  }, {
    key: 'onAfterRemoveRow',
    value: function onAfterRemoveRow(index, amount) {
      this.rowsMapper.unshiftItems(this.removedRows);
    }

    /**
     * `afterLoadData` hook callback.
     *
     * @private
     * @param {Boolean} firstTime True if that was loading data during the initialization.
     */

  }, {
    key: 'onAfterLoadData',
    value: function onAfterLoadData(firstTime) {
      this.updateRowsMapper();
    }

    /**
     * 'modifyRow' hook callback.
     *
     * @private
     * @param {Number} row Visual Row index.
     * @returns {Number} Modified row index.
     */

  }, {
    key: 'onModifyRow',
    value: function onModifyRow(row, source) {
      if (source !== this.pluginName) {
        var rowInMapper = this.rowsMapper.getValueByIndex(row);
        row = rowInMapper === null ? row : rowInMapper;
      }

      return row;
    }

    /**
     * 'unmodifyRow' hook callback.
     *
     * @private
     * @param {Number} row Visual row index.
     * @returns {Number} Logical row index.
     */

  }, {
    key: 'onUnmodifyRow',
    value: function onUnmodifyRow(row) {
      var indexInMapper = this.rowsMapper.getIndexByValue(row);

      return indexInMapper === null ? row : indexInMapper;
    }

    /**
     * `afterPluginsInitialized` hook callback.
     *
     * @private
     */

  }, {
    key: 'onAfterPluginsInitialized',
    value: function onAfterPluginsInitialized() {
      this.updateRowsMapper();
      this.initialSettings();
      this.backlight.build();
      this.guideline.build();
    }

    /**
     * Destroy plugin instance.
     */

  }, {
    key: 'destroy',
    value: function destroy() {
      this.backlight.destroy();
      this.guideline.destroy();

      _get(ManualRowMove.prototype.__proto__ || Object.getPrototypeOf(ManualRowMove.prototype), 'destroy', this).call(this);
    }
  }]);

  return ManualRowMove;
}(BasePlugin);

registerPlugin('ManualRowMove', ManualRowMove);

export default ManualRowMove;