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39 lines
1.1 KiB
TypeScript
39 lines
1.1 KiB
TypeScript
// Copyright (c) 2026 PowerOn AG
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// All rights reserved.
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/**
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* LayoutPersistenceAdapter — pluggable persistence for layout state.
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*
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* Default implementation uses localStorage.
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* NOT used for navigation state (URL is source-of-truth) or settings values (DB).
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* Use for: panel widths, collapse state, user UI preferences.
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*/
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import type { LayoutPersistenceAdapter } from './types';
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const PREFIX = 'po_layout_';
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function _buildKey(scope: string, key: string): string {
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return `${PREFIX}${scope}:${key}`;
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}
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export function _createLocalStorageAdapter(scope: string): LayoutPersistenceAdapter {
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return {
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scope,
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load<T>(key: string): T | null {
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try {
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const raw = localStorage.getItem(_buildKey(scope, key));
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if (raw === null) return null;
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return JSON.parse(raw) as T;
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} catch {
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return null;
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}
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},
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save<T>(key: string, value: T): void {
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try {
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localStorage.setItem(_buildKey(scope, key), JSON.stringify(value));
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} catch {
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// localStorage full or unavailable — silently ignore for UI preferences
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}
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},
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};
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}
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