/**
 * Event handler that highlights cells
 *
 * @example
 * ```javascript
 * new mxCellTracker(graph, '#00FF00');
 * ```
 *
 * For detecting dragEnter, dragOver and dragLeave on cells, the following code can be used:
 * @example
 * ```javascript
 * graph.addMouseListener(
 * {
 *   cell: null,
 *   mouseDown: function(sender, me) { },
 *   mouseMove: function(sender, me)
 *   {
 *     var tmp = me.getCell();
 *
 *     if (tmp != this.cell)
 *     {
 *       if (this.cell != null)
 *       {
 *         this.dragLeave(me.getEvent(), this.cell);
 *       }
 *
 *       this.cell = tmp;
 *
 *       if (this.cell != null)
 *       {
 *         this.dragEnter(me.getEvent(), this.cell);
 *       }
 *     }
 *
 *     if (this.cell != null)
 *     {
 *       this.dragOver(me.getEvent(), this.cell);
 *     }
 *   },
 *   mouseUp: function(sender, me) { },
 *   dragEnter: function(evt, cell)
 *   {
 *     mxLog.debug('dragEnter', cell.value);
 *   },
 *   dragOver: function(evt, cell)
 *   {
 *     mxLog.debug('dragOver', cell.value);
 *   },
 *   dragLeave: function(evt, cell)
 *   {
 *     mxLog.debug('dragLeave', cell.value);
 *   }
 * });
 * ```
 */
declare class mxCellTracker extends mxCellMarker {
  /**
   * Constructs an event handler that highlights cells.
   *
   * @param graph   Reference to the enclosing {@link mxGraph}.
   * @param color   Color of the highlight. Default is blue.
   * @param funct   Optional JavaScript function that is used to override {@link mxCellMarker.getCell}.
   */
  constructor(graph: mxGraph, color: string, funct?: Function);

  /**
   * Ignores the event. The event is not consumed.
   */
  // TODO types
  mouseDown(sender: any, me: mxMouseEvent): void;

  /**
   * Handles the event by highlighting the cell under the mousepointer if it
   * is over the hotspot region of the cell.
   */
  // TODO types
  mouseMove(sender: any, me: mxMouseEvent): void;

  /**
   * Handles the event by resetting the highlight.
   */
  // TODO types
  mouseUp(sender: any, me: mxMouseEvent): void;

  /**
   * Function: destroy
   *
   * Destroys the object and all its resources and DOM nodes. This doesn't
   * normally need to be called. It is called automatically when the window
   * unloads.
   */
  destroy(): void;
}