Handsontable plugin - Observe dblClick event

handsontable-observedblclick.js

function ObserveDblClick() {
  var plugin = this;

  // public methods
  this.init = function() {
    bindHeaders.call(this);
  };

  this.dblclickColHeader = function(hot, col) {
    hot.runHooks('dblclickColHeader', col);
  };

  this.dblclickRowHeader = function(hot, row) {
    hot.runHooks('dblclickRowHeader', row);
  };

  this.dblclickCell = function(hot, row, col) {
    hot.runHooks('dblclickCell', row, col);
  };

  // private methods
  var bindHeaders = function() {
    const hot = this;
    const eventManager = new Handsontable.EventManager(hot);
    const hasClass = Handsontable.dom.hasClass;

    eventManager.addEventListener(hot.rootElement, 'dblclick', function(e) {
      const el = e.target;
      const isHeader = hasClass(el, 'relative');
      const isRowHeader = hasClass(el, 'rowHeader');
      const isColHeader = hasClass(el, 'colHeader');
      const isCell = hasClass(el, 'highlight');
      // const isCorner = hasClass(el, 'corner');
      if (isHeader || isRowHeader || isColHeader || isCell) {
        const [row, col] = hot.getSelectedLast();

        // use getColumn to get index of the closest th
        if (col == 0 && (isHeader || isRowHeader) && getColumn(el) === 0) {
          plugin.dblclickRowHeader(hot, row);
        } else if (row == 0 && (isHeader || isColHeader) && getColumn(el) === 1) {
          plugin.dblclickColHeader(hot, col);
        } else {
          plugin.dblclickCell(hot, row, col);
        }
      }
    });
  };

  function getColumn(target) {
    var TH = Handsontable.dom.closest(target, 'TH');
    return Handsontable.dom.index(TH);
  }

  // function getRow(target) {
  //   var TR = Handsontable.dom.closest(target, 'TR');
  //   return Handsontable.dom.index(TR);
  // }
  //
  // function isCorner(target) {
  //   var TR = Handsontable.dom.closest(target, 'TR');
  //   return !TR.querySelector('.rowHeader');
  // }
  //
  // function countRowHeaders(instance) {
  //   var THs = instance.view.TBODY.querySelector('tr').querySelectorAll('th');
  //   return THs.length;
  // }

};

var observeDblClick = new ObserveDblClick();

Handsontable.hooks.add('afterInit', observeDblClick.init);

Handsontable.hooks.register('dblclickColHeader');
Handsontable.hooks.register('dblclickRowHeader');
Handsontable.hooks.register('dblclickCell');

Handsontable.plugins.ObserveDblClick = ObserveDblClick;

main-controller.js

// Handsontable v0.38.1
hot.addHooks('dblclickCell', function(row, cell) { 
  //...
});

hot.addHooks('dblclickRowHeader', function(row) {
	//...
});