SecureNotes/src/theme.ts

62 lines
1.5 KiB
TypeScript

import { AwaitStore, Observable } from "@hibas123/utils";
import { readFileSync } from "fs";
const light = readFileSync(
"node_modules/@hibas123/theme/out/light.css",
"utf-8"
);
const dark = readFileSync("node_modules/@hibas123/theme/out/dark.css", "utf-8");
export enum ThemeStates {
AUTO,
LIGHT,
DARK,
}
let themeConfig: ThemeStates = Number(localStorage.getItem("theme"));
if (Number.isNaN(themeConfig)) themeConfig = ThemeStates.AUTO;
let isDark = false;
let mediaIsDark = false;
if (window.matchMedia) {
const mediaq = matchMedia("(prefers-color-scheme: dark)");
mediaIsDark = mediaq.matches;
mediaq.onchange = (ev) => {
mediaIsDark = ev.matches;
apply();
};
console.log(mediaq);
}
const DarkModeStore = new AwaitStore<boolean>(isDark);
let styleElm: HTMLStyleElement;
function apply(force?: boolean) {
let shouldDark =
themeConfig === ThemeStates.AUTO
? mediaIsDark
: themeConfig === ThemeStates.DARK;
if (force || shouldDark !== isDark) {
if (styleElm) styleElm.remove();
styleElm = document.createElement("style");
document.head.appendChild(styleElm);
styleElm.innerHTML = shouldDark ? dark : light;
isDark = shouldDark;
DarkModeStore.send(isDark);
}
}
apply(true);
function change(state: ThemeStates) {
themeConfig = state;
localStorage.setItem("theme", String(themeConfig));
apply();
}
export default {
active: () => themeConfig,
change: (state: ThemeStates) => change(state),
isDark: DarkModeStore,
};