Method panzoom

js/src/Toolbar.ts:48–76

()

  //   and can take the value of the figure interaction, which can be
  //   null.
  panzoom() {
    const figure = this.get('figure');
    if (this.get('_panning')) {
      if (figure) {
        figure.set('interaction', this.cached_interaction);
        figure.save_changes();
      }
      this.set('_panning', false);
      this.save_changes();
    } else {
      if (figure) {
        this.cached_interaction = figure.get('interaction');
        const panzoom = this.get('_panzoom');
        if (panzoom) {
          figure.set('interaction', panzoom);
          figure.save_changes();
        } else {
          this._create_panzoom_model(figure).then((model) => {
            this.set('_panzoom', model);
            this.save_changes();
            figure.set('interaction', model);
            figure.save_changes();
          });
        }
      }
      this.set('_panning', true);
      this.save_changes();
    }
  }

  reset() {
    /**