Method onStateChange

codebase/dhtmlxscheduler.es.js:2950–2955

(i)

    i.mode && (i.currentModeIndex = this.state.modes.indexOf(i.mode)), this.state = { ...this.state, ...i }, this._notifyStateChange(t, this.state), this.container && this.render(this.container);
  }
  onStateChange(i) {
    return this.onStateChangeHandlers.push(i), () => {
      const t = this.onStateChangeHandlers.indexOf(i);
      t !== -1 && this.onStateChangeHandlers.splice(t, 1);
    };
  }
  _notifyStateChange(i, t) {
    this.onStateChangeHandlers.forEach((n) => n(i, t));
  }