Method start

apps/client/src/code/pages/page/camera/panning.ts:21–28

(event: PointerEvent)

  }

  start(event: PointerEvent) {
    this.currentPos = this.page.pos.eventToClient(event);

    this.cancelPointerEvents = listenPointerEvents(event, {
      move: this._update,
      up: this._finish,
    });
  }

  private _update = (event: PointerEvent) => {
    this.react.active = true;