rouggy
ab0db0ef3a
Built from the three sands an operator sent: #faf6eb for panels, #e8dfca for the page behind them, #ddd2ba for toolbars, table headers and rows. The ordering is what makes it work — a panel reads as lifted off the page and the log grid as settled into it, so rows stay scannable without extra rules. Ink is a deep warm brown; pure black on sand glares.
122 lines
5.5 KiB
TypeScript
122 lines
5.5 KiB
TypeScript
import { createContext, useContext, useState, useEffect, useCallback, useRef, type ReactNode } from 'react';
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import { writeUiPref } from './uiPref';
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import { GetUIPref } from '../../wailsjs/go/main/App';
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// Theme system. Each choice maps to a `data-theme` value on <html> that the
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// CSS variables in style.css key off of. 'auto' follows the OS light/dark
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// preference. The choice is persisted (localStorage + portable UI pref, so it
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// travels with the data/ folder like the language).
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export type ThemeChoice = 'auto' | 'light-warm' | 'light-cool' | 'light-sage' | 'light-nordic' | 'sahara'
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| 'dim-slate' | 'dark-warm' | 'dark-graphite' | 'dark-indigo' | 'dark-teal' | 'dark-plum' | 'high-contrast';
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// Selectable, concrete themes (excludes 'auto') in display order: lights first,
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// then darks, with high-contrast last — it is an accessibility choice, not a
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// taste one, and listing it among the moods buries it.
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export const CONCRETE_THEMES: Exclude<ThemeChoice, 'auto'>[] = [
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'light-warm', 'light-cool', 'light-sage', 'light-nordic', 'sahara',
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'dim-slate', 'dark-warm', 'dark-graphite', 'dark-indigo', 'dark-teal', 'dark-plum',
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'high-contrast',
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];
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export const LS_KEY = 'opslog.theme';
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// A fresh install starts DARK. A shack is usually a dim room and the screen is
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// looked at for hours; every other logger defaults the same way. Graphite
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// specifically, because that is what 'auto' already resolves to for a dark
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// system — so the two paths agree instead of landing on different darks.
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const DEFAULT: ThemeChoice = 'dark-graphite';
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const ALL: ThemeChoice[] = ['auto', ...CONCRETE_THEMES];
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function systemDark(): boolean {
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try { return window.matchMedia('(prefers-color-scheme: dark)').matches; } catch { return false; }
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}
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// Resolve 'auto' to a concrete data-theme value (graphite dark / warm light).
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function resolve(choice: ThemeChoice): string {
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if (choice === 'auto') return systemDark() ? 'dark-graphite' : 'light-warm';
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return choice;
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}
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function readStored(): ThemeChoice {
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try {
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const v = localStorage.getItem(LS_KEY) as ThemeChoice | null;
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if (v && ALL.includes(v)) return v;
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} catch { /* private mode */ }
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return DEFAULT;
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}
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// Stamp the resolved theme onto <html data-theme>.
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export function applyThemeToDom(choice: ThemeChoice): void {
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try { document.documentElement.setAttribute('data-theme', resolve(choice)); } catch { /* no DOM */ }
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}
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// Call before the first render (main.tsx) so there is no flash of the default
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// palette while React boots.
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export function initTheme(): void { applyThemeToDom(readStored()); }
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type Ctx = { theme: ThemeChoice; setTheme: (t: ThemeChoice) => void };
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const ThemeCtx = createContext<Ctx>({ theme: DEFAULT, setTheme: () => {} });
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export function useTheme(): Ctx { return useContext(ThemeCtx); }
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export function ThemeProvider({ children }: { children: ReactNode }) {
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const [theme, setThemeState] = useState<ThemeChoice>(() => readStored());
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// Set once the operator changes the theme by hand, so the self-heal below
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// never clobbers a fresh choice with a value it read a moment earlier.
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const userPicked = useRef(false);
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const setTheme = useCallback((t: ThemeChoice) => {
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userPicked.current = true;
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setThemeState(t);
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applyThemeToDom(t);
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writeUiPref(LS_KEY, t);
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}, []);
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// Self-heal the persisted theme. The synchronous boot read (localStorage) can
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// miss it when the WebView cleared its storage, OR when syncPortablePrefs ran
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// while the backend was still starting (settings store not wired yet → GetUIPref
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// returned "" with no error, so nothing was restored) — the "restart lands on
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// the light theme sometimes" bug. Re-read the portable pref from the DB once the
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// backend is up and apply it, retrying briefly to ride out a slow startup.
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useEffect(() => {
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let cancelled = false;
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let tries = 0;
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const load = () => {
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tries += 1;
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GetUIPref(LS_KEY).then((raw) => {
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// Backend ANSWERED (settings store ready). Apply a valid stored value; an
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// empty/invalid one means the theme is genuinely unset → keep the default.
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// Either way we're done — do NOT retry (retrying only matters while the
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// backend is still starting, which now surfaces as a rejected promise).
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if (cancelled || userPicked.current) return;
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const v = raw as ThemeChoice;
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if (v && ALL.includes(v)) {
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try { localStorage.setItem(LS_KEY, v); } catch { /* quota */ }
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applyThemeToDom(v); // idempotent — safe to call unconditionally
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setThemeState(v);
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}
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}).catch(() => {
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// Settings store not ready yet — a brief startup window before the backend
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// has opened the local DB and built the store (the frontend can query it
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// first). Keep retrying well past the old 2.4s cap so a dark theme isn't
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// lost to the light default after an update cleared localStorage.
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if (!cancelled && !userPicked.current && tries < 120) window.setTimeout(load, 300);
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});
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};
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load();
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return () => { cancelled = true; };
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}, []);
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// While in 'auto', re-resolve when the OS light/dark preference flips.
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useEffect(() => {
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if (theme !== 'auto') return;
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const mq = window.matchMedia('(prefers-color-scheme: dark)');
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const onChange = () => applyThemeToDom('auto');
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mq.addEventListener('change', onChange);
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return () => mq.removeEventListener('change', onChange);
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}, [theme]);
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// Keep the DOM attribute in sync with state.
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useEffect(() => { applyThemeToDom(theme); }, [theme]);
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return <ThemeCtx.Provider value={{ theme, setTheme }}>{children}</ThemeCtx.Provider>;
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}
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