dtourolle
1836615dc0
- music landing: diverse per-genre album sliders (online counts / offline wide-probe fallback) and home-screen library shortcuts - add ArtistLinks component and shared navigation/genreDiversity utils - player/playback-mode refinements across Rust and frontend
34 lines
1.2 KiB
TypeScript
34 lines
1.2 KiB
TypeScript
import { goto } from "$app/navigation";
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/**
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* Navigate "back" using real browser/Android history when possible, falling
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* back to an explicit path otherwise.
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*
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* Hardcoded `goto(backPath)` always sends the user to a fixed screen, which
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* loses track of where they actually came from (e.g. reaching the genres list
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* from different entry points). Preferring `history.back()` keeps the back
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* affordance consistent with the platform back gesture and the browser/Android
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* hardware back button.
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*
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* We only use history when there is somewhere to go back to *within the app*.
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* On a fresh deep-link (history length 1, or an external referrer) we fall back
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* to `fallbackPath` so the user never gets stranded or bounced out of the app.
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*/
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export function navigateBack(fallbackPath: string): void {
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if (canGoBack()) {
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history.back();
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} else {
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goto(fallbackPath);
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}
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}
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/**
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* True when there is in-app history to pop. `history.length > 1` means the user
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* navigated here from another page in this session rather than landing here
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* directly (deep link, refresh, or first load).
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*/
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function canGoBack(): boolean {
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if (typeof history === "undefined") return false;
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return history.length > 1;
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}
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