Files
aigen/composables/useDisplayMode.ts

83 lines
2.4 KiB
TypeScript

export type DisplayMode = 'classic' | 'studio'
const STORAGE_KEY = 'aigen.displayMode'
function parseMode(raw: unknown): DisplayMode | null {
const value = String(raw || '').trim().toLowerCase()
return value === 'classic' || value === 'studio' ? value : null
}
function readStored(): DisplayMode {
if (!import.meta.client) return 'studio'
try {
return parseMode(localStorage.getItem(STORAGE_KEY)) || 'studio'
} catch {
return 'studio'
}
}
function writeStored(mode: DisplayMode) {
if (!import.meta.client) return
try {
localStorage.setItem(STORAGE_KEY, mode)
} catch { /* ignore quota / private mode */ }
}
/** Classic | Studio chrome skin. One Bench tree; layout only. */
export function useDisplayMode() {
const route = useRoute()
const displayMode = useState<DisplayMode>('aigen.displayMode', () => 'studio')
const sessionOverride = useState<DisplayMode | null>('aigen.displayMode.session', () => null)
const hydrated = useState('aigen.displayMode.hydrated', () => false)
const resolved = computed<DisplayMode>(() => {
const fromQuery = parseMode(route.query.display)
if (fromQuery) return fromQuery
if (sessionOverride.value) return sessionOverride.value
return displayMode.value
})
function setDisplayMode(mode: DisplayMode, opts?: { persist?: boolean; session?: boolean }) {
const persist = opts?.persist !== false
if (opts?.session) sessionOverride.value = mode
else sessionOverride.value = null
displayMode.value = mode
if (persist) writeStored(mode)
}
function hydrate() {
if (hydrated.value) return
hydrated.value = true
const fromQuery = parseMode(route.query.display)
if (fromQuery) {
sessionOverride.value = fromQuery
return
}
displayMode.value = readStored()
}
if (import.meta.client) {
onMounted(hydrate)
watch(
() => route.query.display,
(raw) => {
const fromQuery = parseMode(raw)
if (fromQuery) sessionOverride.value = fromQuery
else if (sessionOverride.value && !parseMode(route.query.display)) {
// Drop session override when query cleared; keep stored preference.
sessionOverride.value = null
displayMode.value = readStored()
}
}
)
}
return {
displayMode: resolved,
storedDisplayMode: displayMode,
setDisplayMode,
isStudio: computed(() => resolved.value === 'studio'),
isClassic: computed(() => resolved.value === 'classic')
}
}