71 lines
2 KiB
TypeScript
71 lines
2 KiB
TypeScript
import settings from "./settings";
|
|
import { THEME } from "./types/evcc";
|
|
|
|
const darkModeMatcher = window.matchMedia && window.matchMedia("(prefers-color-scheme: dark)");
|
|
|
|
export function getThemePreference(): THEME {
|
|
const theme = settings.theme;
|
|
if (Object.values(THEME).includes(theme)) {
|
|
return theme;
|
|
}
|
|
return THEME.AUTO;
|
|
}
|
|
|
|
export function setThemePreference(theme: THEME) {
|
|
if (!Object.values(THEME).includes(theme)) {
|
|
return;
|
|
}
|
|
settings.theme = theme;
|
|
updateTheme();
|
|
}
|
|
|
|
function setMetaThemeColor(theme: Exclude<THEME, THEME.AUTO>) {
|
|
const themeColors = { light: "#f3f3f7", dark: "#020318" };
|
|
const $metaThemeColor = document.querySelector("meta[name=theme-color]");
|
|
if ($metaThemeColor) {
|
|
$metaThemeColor.setAttribute("content", themeColors[theme]);
|
|
}
|
|
}
|
|
|
|
function getCurrentTheme() {
|
|
let theme = getThemePreference();
|
|
if (theme === THEME.AUTO) {
|
|
theme = darkModeMatcher?.matches ? THEME.DARK : THEME.LIGHT;
|
|
}
|
|
return theme;
|
|
}
|
|
|
|
function updateTheme() {
|
|
const theme = getCurrentTheme();
|
|
|
|
// update iOS title bar color
|
|
setMetaThemeColor(theme);
|
|
|
|
// toggle the class on html root
|
|
const $html = document.querySelector("html");
|
|
if ($html) {
|
|
$html.classList.add("no-transitions");
|
|
$html.classList.toggle("dark", theme === THEME.DARK);
|
|
window.setTimeout(function () {
|
|
$html.classList.remove("no-transitions");
|
|
}, 100);
|
|
}
|
|
}
|
|
|
|
function updateMetaThemeForBackdrop() {
|
|
const $backdrop = document.querySelector("[data-bs-backdrop=true][aria-modal=true]");
|
|
// dark if there is a backdrop, otherwise use the current theme
|
|
const theme = $backdrop ? THEME.DARK : getCurrentTheme();
|
|
setMetaThemeColor(theme);
|
|
}
|
|
|
|
export function watchThemeChanges() {
|
|
if (darkModeMatcher && darkModeMatcher.addEventListener) {
|
|
darkModeMatcher.addEventListener("change", updateTheme);
|
|
}
|
|
updateTheme();
|
|
|
|
// listen for modal backdrops
|
|
document.addEventListener("shown.bs.modal", updateMetaThemeForBackdrop);
|
|
document.addEventListener("hidden.bs.modal", updateMetaThemeForBackdrop);
|
|
}
|