forked from Decentrala/website
86 lines
3.0 KiB
JavaScript
86 lines
3.0 KiB
JavaScript
window.addEventListener("DOMContentLoaded", () => {
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const getById = (id) => document.getElementById(id);
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const getByClass = (className) => document.getElementsByClassName(className)[0];
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const themeBtn = getById("theme-switcher");
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const hamburger = getByClass("hamburger");
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const hamburgerIcon = hamburger.children[0]
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const menu = document.getElementsByTagName("nav")[0];
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const imgs = document.getElementsByTagName("img");
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const main = document.getElementsByTagName("main")[0];
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const isMenuOpen = () => hamburger.classList.contains("open");
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const theme = window.localStorage.getItem("theme");
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/* Functions */
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const changeToDarkTheme = () => {
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window.localStorage.setItem("theme", "dark");
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document.documentElement.classList.add("dark");
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themeBtn?.setAttribute("title", "turn the light on");
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Array.from(imgs).forEach((img) => {
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if (img.src.includes("-light")) img.src = img.src.replace("-light", "-dark");
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});
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}
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const changeToLightTheme = () => {
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window.localStorage.setItem("theme", "light");
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document.documentElement.classList.remove("dark");
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themeBtn?.setAttribute("title", "turn the light off");
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Array.from(imgs).forEach((img) => {
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if (img.src.includes("-dark")) img.src = img.src.replace("-dark", "-light");
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});
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}
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const closeMenu = () => {
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hamburger.classList = "hamburger closed"
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hamburgerIcon.src = hamburgerIcon.src.replace("opened", "closed");
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menu.classList = "menu closed";
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}
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const openMenu = () => {
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hamburger.classList = "hamburger open"
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hamburgerIcon.src = hamburgerIcon.src.replace("closed", "opened");
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menu.classList = "menu open";
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}
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/* Listeners */
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window.addEventListener("resize", () => isMenuOpen() && closeMenu());
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main.addEventListener("click", () => isMenuOpen() && closeMenu());
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/* Language persistence */
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const currentLang = document.documentElement.lang || "sr";
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const anchors = document.getElementsByTagName("a");
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Array.from(anchors).forEach((a) => {
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// Skip language switcher links
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if (a.classList.contains("lang")) return;
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const href = a.getAttribute("href");
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if (!href) return;
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if (href.startsWith("/")) {
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// Replace existing language prefix or add one
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if (href.startsWith("/sr") || href.startsWith("/en")) {
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if (!href.startsWith(`/${currentLang}`)) {
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a.setAttribute("href", `/${currentLang}${href.slice(3)}`);
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}
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} else {
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// No language prefix, prepend currentLang
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a.setAttribute("href", `/${currentLang}${href}`);
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}
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}
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});
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hamburger?.addEventListener("click", () => isMenuOpen() ? closeMenu() : openMenu());
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themeBtn.addEventListener("click", () => {
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const title = themeBtn.getAttribute("title") ?? "off"
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if (title.indexOf("off") !== -1) changeToDarkTheme();
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else changeToLightTheme();
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});
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/* Rest */
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const userPerfersDark = window?.matchMedia?.("(prefers-color-scheme: dark)").matches
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if (!theme && userPerfersDark) changeToDarkTheme();
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else theme === "light" ? changeToLightTheme() : changeToDarkTheme();
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})
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