Add light/dark theme with system-preference detection
Neues client/src/lib/theme.ts verwaltet die Wahl (system/light/dark) in localStorage. Umschalter-Button im Header (zyklisch: System -> Hell -> Dunkel), Icon zeigt den aktuellen Modus. CSS-Variablen (--bg/--card/--text/--muted/ --bor/--cyan) bekommen einen Hell-Override über [data-theme="light"] bzw. @media(prefers-color-scheme:light) ohne explizites [data-theme="dark"] - so gewinnt eine manuelle Wahl in beide Richtungen gegen die Systemeinstellung. Header/Tabs/Login bleiben bewusst immer dunkel-navy (Markenidentität), nur der Content-Bereich wechselt. Inline-Script in index.html verhindert ein kurzes Aufblitzen des falschen Farbschemas vor dem ersten Paint. Temporärer test-build-only.yml Workflow zur Verifikation ohne Registry-Push. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
This commit is contained in:
Fidelis Huber
co-authored by
Claude Sonnet 5
Claude Sonnet 5
parent
3d070d4dd7
commit
c1bb51b480
@@ -7,6 +7,14 @@
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<link rel="icon" href="/icons/favicon-32.png" sizes="32x32" />
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<link rel="apple-touch-icon" href="/icons/apple-touch-icon.png" />
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<title>BergVOLT Elektrotechnik – Materialschein</title>
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<script>
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// Vor dem ersten Paint anwenden, damit bei explizit gewähltem Theme (abweichend
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// von der Systemeinstellung) kein kurzes Aufblitzen des falschen Farbschemas passiert.
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try {
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var t = localStorage.getItem('bv_theme');
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if (t === 'light' || t === 'dark') document.documentElement.setAttribute('data-theme', t);
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} catch (e) {}
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</script>
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</head>
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<body>
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<div id="root"></div>
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@@ -1,5 +1,11 @@
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import { useState } from 'react';
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import { Link, useLocation } from 'react-router-dom';
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import { useMsal } from '@azure/msal-react';
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import { getStoredTheme, setTheme, type ThemeMode } from '../lib/theme';
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const THEME_ICON: Record<ThemeMode, string> = { system: '🖥️', light: '☀️', dark: '🌙' };
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const THEME_LABEL: Record<ThemeMode, string> = { system: 'System', light: 'Hell', dark: 'Dunkel' };
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const NEXT_THEME: Record<ThemeMode, ThemeMode> = { system: 'light', light: 'dark', dark: 'system' };
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export default function Header({ localUser, onLocalLogout }: { localUser: string | null; onLocalLogout: () => void }) {
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const { instance, accounts } = useMsal();
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@@ -9,12 +15,19 @@ export default function Header({ localUser, onLocalLogout }: { localUser: string
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const displayName = localUser ?? account?.name ?? account?.username ?? '–';
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const roleLine = localUser ? 'Lokales Konto' : (account?.username ?? '');
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const initials = displayName.split(' ').map(n => n[0]).join('').substring(0, 2).toUpperCase();
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const [themeMode, setThemeMode] = useState<ThemeMode>(getStoredTheme());
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function logout() {
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if (account) instance.logoutPopup();
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onLocalLogout();
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}
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function cycleTheme() {
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const next = NEXT_THEME[themeMode];
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setTheme(next);
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setThemeMode(next);
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}
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return (
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<>
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<header>
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@@ -24,6 +37,13 @@ export default function Header({ localUser, onLocalLogout }: { localUser: string
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<div className="logo-sub">Elektrotechnik</div>
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</div>
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</div>
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<button
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className="btn-theme"
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onClick={cycleTheme}
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title={`Darstellung: ${THEME_LABEL[themeMode]} (klicken zum Wechseln)`}
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>
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{THEME_ICON[themeMode]}
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</button>
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<div className="hdr-user">
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<div className="hdr-av">{initials}</div>
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<div>
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@@ -0,0 +1,23 @@
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export type ThemeMode = 'system' | 'light' | 'dark';
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const KEY = 'bv_theme';
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export function getStoredTheme(): ThemeMode {
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const v = localStorage.getItem(KEY);
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return v === 'light' || v === 'dark' ? v : 'system';
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}
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export function applyTheme(mode: ThemeMode) {
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const root = document.documentElement;
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if (mode === 'system') root.removeAttribute('data-theme');
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else root.setAttribute('data-theme', mode);
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}
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export function setTheme(mode: ThemeMode) {
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localStorage.setItem(KEY, mode);
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applyTheme(mode);
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}
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export function initTheme() {
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applyTheme(getStoredTheme());
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}
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@@ -2,9 +2,12 @@ import React from 'react';
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import ReactDOM from 'react-dom/client';
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import { MsalProvider } from '@azure/msal-react';
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import { msalInstance } from './lib/authConfig';
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import { initTheme } from './lib/theme';
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import App from './App';
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import './styles.css';
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initTheme();
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msalInstance.initialize().then(() => {
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ReactDOM.createRoot(document.getElementById('root')!).render(
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<React.StrictMode>
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@@ -1,3 +1,7 @@
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/* Dunkel ist die Grundeinstellung (bare :root). Header/Tabs/Login bleiben in
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beiden Modi dunkel-navy (Markenidentität) – nur der Content-Bereich (Karten,
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Tabellen, Formulare) wechselt. Siehe [data-theme="light"] weiter unten für
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die Werte und wie System-Erkennung + expliziter Umschalter zusammenspielen. */
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:root{
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--bg:#0a1622;
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--bg2:#0f2033;
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@@ -13,6 +17,39 @@
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body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;background:var(--bg);color:var(--text);min-height:100vh;font-size:14px;line-height:1.4}
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button,input,select,textarea{font-family:inherit}
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/* ── Theme: Hell ──
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Zwei Auslöser, die dieselben Werte setzen:
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1) [data-theme="light"] – explizit vom Umschalter gewählt, unabhängig vom System.
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2) @media(prefers-color-scheme:light) ohne explizites [data-theme="dark"] – folgt
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der Systemeinstellung, solange niemand manuell "Dunkel" erzwungen hat. */
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:root[data-theme="light"]{
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--bg:#f3f6f8;--bg2:#ffffff;--card:#ffffff;--cyan:#0086a3;--text:#0f2130;--muted:#5c7686;--bor:#dbe4ea;
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--sh:0 3px 16px rgba(15,35,50,.08);
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}
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:root[data-theme="light"] .btn-ghost{background:rgba(15,35,50,.05)}
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:root[data-theme="light"] .status-aktiv{background:rgba(0,170,90,.12);color:#0a8a4c}
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:root[data-theme="light"] .status-abgeschlossen{background:rgba(92,118,134,.12)}
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:root[data-theme="light"] .badge-nym{background:rgba(0,110,200,.14);color:#0064b8}
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:root[data-theme="light"] .badge-nyy{background:rgba(210,110,0,.14);color:#a35b00}
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:root[data-theme="light"] .badge-h07{background:rgba(120,0,180,.14);color:#7a1fae}
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:root[data-theme="light"] .badge-ysly{background:rgba(210,40,40,.14);color:#b32a2a}
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:root[data-theme="light"] .badge-schlauch{background:rgba(20,150,90,.14);color:#0f7d4f}
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@media(prefers-color-scheme:light){
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:root:not([data-theme="dark"]){
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--bg:#f3f6f8;--bg2:#ffffff;--card:#ffffff;--cyan:#0086a3;--text:#0f2130;--muted:#5c7686;--bor:#dbe4ea;
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--sh:0 3px 16px rgba(15,35,50,.08);
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}
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:root:not([data-theme="dark"]) .btn-ghost{background:rgba(15,35,50,.05)}
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:root:not([data-theme="dark"]) .status-aktiv{background:rgba(0,170,90,.12);color:#0a8a4c}
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:root:not([data-theme="dark"]) .status-abgeschlossen{background:rgba(92,118,134,.12)}
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:root:not([data-theme="dark"]) .badge-nym{background:rgba(0,110,200,.14);color:#0064b8}
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:root:not([data-theme="dark"]) .badge-nyy{background:rgba(210,110,0,.14);color:#a35b00}
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:root:not([data-theme="dark"]) .badge-h07{background:rgba(120,0,180,.14);color:#7a1fae}
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:root:not([data-theme="dark"]) .badge-ysly{background:rgba(210,40,40,.14);color:#b32a2a}
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:root:not([data-theme="dark"]) .badge-schlauch{background:rgba(20,150,90,.14);color:#0f7d4f}
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}
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/* Login */
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.login-screen{display:flex;align-items:center;justify-content:center;min-height:100vh;background:#070f18;position:relative;overflow:hidden;padding:20px}
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.login-screen::before{content:'';position:absolute;inset:0;background:radial-gradient(ellipse 70% 60% at 30% 30%,rgba(0,200,216,.08) 0%,transparent 70%)}
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@@ -39,6 +76,8 @@ header{background:linear-gradient(135deg,#081420 0%,#0c1c30 100%);border-bottom:
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.hdr-role{font-size:9.5px;color:var(--muted)}
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.btn-logout{background:rgba(255,255,255,.06);border:1px solid var(--bor);color:var(--muted);border-radius:8px;padding:8px 12px;font-size:11px;font-weight:700;cursor:pointer;flex-shrink:0}
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.btn-logout:hover{color:#ff6b6b;border-color:rgba(255,85,85,.4)}
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.btn-theme{background:rgba(255,255,255,.06);border:1px solid var(--bor);border-radius:8px;width:36px;height:36px;font-size:15px;cursor:pointer;flex-shrink:0;display:flex;align-items:center;justify-content:center;line-height:1}
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.btn-theme:hover{background:rgba(255,255,255,.12)}
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/* Tabs */
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.tabs{background:#081420;display:flex;padding:0 20px;gap:2px;border-bottom:1px solid var(--bor);overflow-x:auto}
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