Method panzoom

js/src/FigureModel.ts:90–110

* Start or stop pan zoom mode *

()

   *
   */
  panzoom(): void {
    if (this.panzoomData.panning) {
      this.set('interaction', this.panzoomData.cached_interaction);
      this.panzoomData.panning = false;
      this.save_changes();
    } else {
      this.panzoomData.cached_interaction = this.get('interaction');
      const panzoom = this.panzoomData.panzoom;
      if (panzoom) {
        this.set('interaction', panzoom);
        this.save_changes();
      } else {
        this.create_panzoom_model().then((model) => {
          this.set('interaction', model);
          this.panzoomData.panzoom = model;
          this.save_changes();
        });
      }
      this.panzoomData.panning = true;
    }
  }

  /**
   * Creates a panzoom interaction widget for the this model.