182be8c33d
Introduces the kernel lifecycle and migrates the first real page to the feature-module contract: - kernel/lifecycle.js: MountContext (loadScripts/loadFragment/setContent + an AbortController/unsub teardown ledger so mounts can't leak listeners or live streams). - features/backup/index.js: Backup Center as a self-contained module (LP.features.register with mount/unmount); heavy backup-page.js stays lazy-loaded on first mount. - spa.js: routes whose feature has a registered mount() are driven through the kernel; everything else still uses its legacy handleX(). navigate() unmounts the current feature first. Both fall back to the legacy handler if a module is missing or mount throws. Strangler step: /backup now flows manifest -> registry -> mount/unmount. The other pages are untouched. handleBackup remains as the fallback. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> Signed-off-by: librelad <librelad@digitalangels.vip>
42 lines
1.8 KiB
JavaScript
42 lines
1.8 KiB
JavaScript
// features/backup/index.js — Backup Center as a self-contained feature module.
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//
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// FIRST page migrated to the feature-module contract (docs/frontend-modularization.md).
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// The kernel drives mount()/unmount() for the /backup route instead of
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// spa.js's handleBackup(). The heavy controller (backup-page.js, ~129KB) is
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// still lazy-loaded on first mount, so cold-load cost is unchanged.
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//
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// Snap-out demo: deleting this folder removes the backup route's module
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// registration; the manifest entry then falls back to the legacy handler
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// (and, once handleBackup is retired, to the kernel's not-found route). The
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// full decomposition of backup-page.js into per-tab modules is Phase 5.
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LP.features.register({
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id: 'backup',
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routes: ['/backup', '/backup*'],
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// Controllers the feature needs; lazy-loaded on first mount (idempotent).
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scripts: [
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'/js/components/backup/backup-page.js',
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'/js/components/backup/backup-app-card.js',
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],
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async mount(ctx) {
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await ctx.loadScripts(this.scripts);
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const html = await ctx.loadFragment('/html/backup-content.html');
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ctx.setContent(html, 'Backups');
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if (typeof BackupPage === 'undefined') {
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throw new Error('BackupPage controller failed to load');
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}
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window.backupPage = new BackupPage();
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await window.backupPage.init();
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},
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async unmount() {
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// Best-effort teardown. BackupPage self-guards stale work via
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// (window.backupPage === this), so nulling the global neutralises any
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// pending task-refresh repaint; we also drop its coordinator registration.
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// A proper dispose() (removing the leaked document listeners) lands with
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// the Phase 5 backup decomposition.
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try { window.taskRefresh && window.taskRefresh.unregister && window.taskRefresh.unregister('backups'); } catch (_) {}
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window.backupPage = null;
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},
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});
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