export class Profiler { panelsRendered = 0; enabled?: boolean = undefined; renderingCompleted() { // add render counter to root scope // used by image renderer to know when panel has rendered this.panelsRendered += 1; // this window variable is used by backend rendering tools to know // all panels have completed rendering (window as any).panelsRendered = this.panelsRendered; } } const profiler = new Profiler(); export { profiler };