Function deactivateRouteAndItsChildren

packages/router/src/utils/preactivation.ts:208–247

(
  route: TreeNode<ActivatedRouteSnapshot>,
  context: OutletContext | null,
  parentContexts: ChildrenOutletContexts | null,
  checks: Checks,
)

}

function deactivateRouteAndItsChildren(
  route: TreeNode<ActivatedRouteSnapshot>,
  context: OutletContext | null,
  parentContexts: ChildrenOutletContexts | null,
  checks: Checks,
): void {
  const children = nodeChildrenAsMap(route);
  const r = route.value;

  Object.entries(children).forEach(([childName, node]) => {
    if (!r.component) {
      // For componentless routes, children share the parent's outlet contexts. Look up each
      // child by its outlet name in parentContexts rather than passing the same context
      // (which was derived from the componentless route's own outlet and may be null or wrong).
      deactivateRouteAndItsChildren(
        node,
        parentContexts ? parentContexts.getContext(childName) : null,
        parentContexts,
        checks,
      );
    } else if (context) {
      deactivateRouteAndItsChildren(
        node,
        context.children.getContext(childName),
        context.children,
        checks,
      );
    } else {
      deactivateRouteAndItsChildren(node, null, null, checks);
    }
  });

  if (!r.component) {
    checks.canDeactivateChecks.push(new CanDeactivate(null, r));
  } else if (context && context.outlet && context.outlet.isActivated) {
    checks.canDeactivateChecks.push(new CanDeactivate(context.outlet.component, r));
  } else {
    checks.canDeactivateChecks.push(new CanDeactivate(null, r));
  }
}