mitgliederverwaltung/lib/mv_web/components/layouts/root.html.heex
carla cbed65de66
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feat: fix light dark mode issue
2026-02-19 12:55:29 +01:00

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Text

<!DOCTYPE html>
<html lang={Gettext.get_locale()}>
<head>
{Application.get_env(:live_debugger, :live_debugger_tags)}
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1" />
<meta name="csrf-token" content={get_csrf_token()} />
<link phx-track-static rel="icon" type="image/svg+xml" href={~p"/images/mila.svg"} />
<.live_title default="Mv" suffix=" · Phoenix Framework">
{assigns[:page_title]}
</.live_title>
<link phx-track-static rel="stylesheet" href={~p"/assets/css/app.css"} />
<script defer phx-track-static type="text/javascript" src={~p"/assets/js/app.js"}>
</script>
<script>
(() => {
const mq = window.matchMedia("(prefers-color-scheme: dark)");
const systemTheme = () => (mq.matches ? "dark" : "light");
// Single source of truth:
// - localStorage["phx:theme"] = "light" | "dark" (explicit override)
// - missing key => "system"
const storedTheme = () => localStorage.getItem("phx:theme") || "system";
const effectiveTheme = (t) => (t === "system" ? systemTheme() : t);
const applyThemeNow = (t) => {
document.documentElement.setAttribute("data-theme", effectiveTheme(t));
};
const syncToggle = () => {
const eff = effectiveTheme(storedTheme());
document.querySelectorAll("[data-theme-toggle]").forEach((el) => {
el.checked = eff === "dark";
});
};
const setTheme = (t) => {
if (t === "system") localStorage.removeItem("phx:theme");
else localStorage.setItem("phx:theme", t);
applyThemeNow(t);
syncToggle(); // if toggle exists already
};
// 1) Apply theme ASAP to match system on first paint
applyThemeNow(storedTheme());
// 2) Sync toggle once DOM is ready (fixes initial "light" toggle)
document.addEventListener("DOMContentLoaded", syncToggle);
// 3) If toggle appears later (LiveView render), sync immediately
const obs = new MutationObserver(() => {
if (document.querySelector("[data-theme-toggle]")) syncToggle();
});
obs.observe(document.documentElement, { childList: true, subtree: true });
window.addEventListener("phx:set-theme", ({ detail: { theme } }) => setTheme(theme));
window.addEventListener("storage", (e) => e.key === "phx:theme" && setTheme(e.newValue || "system"));
mq.addEventListener("change", () => {
if (localStorage.getItem("phx:theme") === null) {
applyThemeNow("system");
syncToggle();
}
});
})();
</script>
</head>
<body>
{@inner_content}
</body>
</html>