Method fire

resources/vega.min.js:14421–14433

(t, e, n)

      (this.fire(Mv, t, !0), (this._touch = null));
    }
    fire(t, e, n) {
      const r = n ? this._touch : this._active,
        i = this._handlers[t];
      if (
        ((e.vegaType = t),
        t === Fv && r && r.href
          ? this.handleHref(e, r, r.href)
          : (t !== Dv && t !== Cv) || this.handleTooltip(e, r, t !== Cv),
        i)
      )
        for (let t = 0, n = i.length; t < n; ++t)
          i[t].handler.call(this._obj, e, r);
    }
    on(t, e) {
      const n = this.eventName(t),
        r = this._handlers;