Option to select area with touchscreen about leaflet-elevation HOT 3 CLOSED

  _appendFocusRect: function(g) {
    var focusRect = this._focusRect = g.append("rect")
      .attr("width", this._width())
      .attr("height", this._height())
      .style("fill", "none")
      .style("stroke", "none")
      .style("pointer-events", "all");

    if (L.Browser.mobile) {
      if (this.options.screenTouchAction == 'selectArea') {
        focusRect
          .on("touchmove.drag", this._dragHandler.bind(this))
          .on("touchstart.drag", this._dragStartHandler.bind(this))
          .on("touchstart.focus", this._mousemoveHandler.bind(this));
        L.DomEvent.on(this._container, 'touchend', this._dragEndHandler, this);
      } else {
        focusRect
          .on("touchmove", this._mousemoveHandler.bind(this));
      }
    }

    focusRect
      .on("mousemove.drag", this._dragHandler.bind(this))
      .on("mousedown.drag", this._dragStartHandler.bind(this))
      .on("mousemove.focus", this._mousemoveHandler.bind(this))
      .on("mouseout.focus", this._mouseoutHandler.bind(this));
    L.DomEvent.on(this._container, 'mouseup', this._dragEndHandler, this);
  },