All files / models asyncComponentTracker.ts

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import { UpdateAsyncState } from '../actions/asyncState';
import { IAsyncComponent } from './component.types';
 
const components: WeakMap<IAsyncComponent, boolean> = new WeakMap<IAsyncComponent, boolean>();
const keyMap = new Map<Symbol, IAsyncComponent>();
 
export function mountComponent(component: IAsyncComponent) {
  Eif (!components.has(component)) {
    components.set(component, true);
    keyMap.set(component.key, component);
  }
}
 
export function unmountComponent(component: IAsyncComponent) {
  if (components.has(component)) {
    components.delete(component);
    keyMap.delete(component.key);
  }
}
 
export function updateState(action: UpdateAsyncState) {
  const component = keyMap.get(action.key);
  if (component) {
    component.updateAsyncState(action.asyncState);
  }
}