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/**
* Routes whose page data must not be refetched in the background: edit pages
* hold in-progress work, and refreshing the login form is pointless.
*/
export const EXCLUDED_ROUTES: Record<string, true> = {
'/login': true,
'/grocery/[id]': true,
'/projects/[projectId]/routine/[routineId]': true,
};
export interface RefreshConditions {
/** `$page.route.id`; null when no route matched yet. */
routeId: string | null | undefined;
/** Document is visible (not a backgrounded tab). */
visible: boolean;
/** Browser reports a network connection. */
online: boolean;
/** A navigation or form action is already in flight. */
navigating: boolean;
}
/** A background refetch may re-run the page load only if nothing is at stake. */
export function shouldAutoRefresh({
routeId,
visible,
online,
navigating,
}: RefreshConditions): boolean {
if (!routeId || routeId in EXCLUDED_ROUTES) return false;
return visible && online && !navigating;
}
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