public/static/common/js/plugin/slickgrid/plugins/slick.cellselectionmodel.js

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(function ($) {
  // register namespace
  $.extend(true, window, {
    "Slick": {
      "CellSelectionModel": CellSelectionModel
    }
  });


  function CellSelectionModel(options) {
    var _grid;
    var _canvas;
    var _ranges = [];
    var _self = this;
    var _selector = new Slick.CellRangeSelector({
      "selectionCss": {
        "border": "2px solid black"
      }
    });
    var _options;
    var _defaults = {
      selectActiveCell: true
    };


    function init(grid) {
      _options = $.extend(true, {}, _defaults, options);
      _grid = grid;
      _canvas = _grid.getCanvasNode();
      _grid.onActiveCellChanged.subscribe(handleActiveCellChange);
      _grid.onKeyDown.subscribe(handleKeyDown);
      grid.registerPlugin(_selector);
      _selector.onCellRangeSelected.subscribe(handleCellRangeSelected);
      _selector.onBeforeCellRangeSelected.subscribe(handleBeforeCellRangeSelected);
    }

    function destroy() {
      _grid.onActiveCellChanged.unsubscribe(handleActiveCellChange);
      _grid.onKeyDown.unsubscribe(handleKeyDown);
      _selector.onCellRangeSelected.unsubscribe(handleCellRangeSelected);
      _selector.onBeforeCellRangeSelected.unsubscribe(handleBeforeCellRangeSelected);
      _grid.unregisterPlugin(_selector);
    }

    function removeInvalidRanges(ranges) {
      var result = [];

      for (var i = 0; i < ranges.length; i++) {
        var r = ranges[i];
        if (_grid.canCellBeSelected(r.fromRow, r.fromCell) && _grid.canCellBeSelected(r.toRow, r.toCell)) {
          result.push(r);
        }
      }

      return result;
    }

    function setSelectedRanges(ranges) {
      _ranges = removeInvalidRanges(ranges);
      _self.onSelectedRangesChanged.notify(_ranges);