mteehan
3de82e3b9b
Drop ?v=N version pins from all JS imports and HTML <link>/<script> tags. Cache invalidation is now handled solely by server-side cache-control headers. Update docs and AGENTS.md accordingly.
62 lines
1.9 KiB
JavaScript
62 lines
1.9 KiB
JavaScript
/**
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* Hoover — router.js
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*
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* Hash-based SPA router with reactive state (triggers re-render on
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* navigation). Link component for client-side navigation.
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*/
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import { reactive } from './reactivity.js';
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import { h } from './vdom.js';
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/**
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* Hash-based router.
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*
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* const router = createRouter({
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* '/dashboard': () => h('#comp', { component: DashboardPage, key: '/dashboard' }, []),
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* '/interfaces': () => h('#comp', { component: InterfacesPage, key: '/interfaces' }, []),
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* '*': () => h('#comp', { component: NotFoundPage, key: '*' }, []),
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* });
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*
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* Reactive `router.state.path` updates trigger re-renders automatically.
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*/
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export function createRouter(routes) {
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const initialPath = location.hash.slice(1) || '/dashboard';
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if (!location.hash) location.hash = initialPath;
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const state = reactive({ path: initialPath });
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window.addEventListener('hashchange', () => {
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state.path = location.hash.slice(1) || '/dashboard';
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});
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const component = () => {
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const handler = routes[state.path] || routes['*'];
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if (!handler) {
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return h('div', { class: 'card' },
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h('div', { class: 'text-muted' }, `404 — Not found: ${state.path}`));
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}
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try {
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return handler();
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} catch (e) {
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return h('div', { class: 'card' },
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h('div', { class: 'text-muted' }, `Error: ${e.message || String(e)}`));
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}
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};
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return { state, navigate: (p) => { location.hash = p; }, component };
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}
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/**
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* Client-side navigation link component.
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* Sets `location.hash` without full page navigation.
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*/
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export function Link(props) {
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const { path, class: cls, children, ...rest } = props || {};
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return h('a', {
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href: '#' + path,
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class: cls || '',
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'on:click': (e) => { e.preventDefault(); location.hash = path; },
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...rest,
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}, children || []);
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}
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