/**
* BOOT LOADER
* サーバーからレスポンスされるHTMLに埋め込まれるスクリプトで、以下の役割を持ちます。
* - 翻訳ファイルをフェッチする。
* - バージョンに基づいて適切なメインスクリプトを読み込む。
* - キャッシュされたコンパイル済みテーマを適用する。
* - クライアントの設定値に基づいて対応するHTMLクラス等を設定する。
* テーマをこの段階で設定するのは、メインスクリプトが読み込まれる間もテーマを適用したいためです。
* 注: webpackは介さないため、このファイルではrequireやimportは使えません。
*/
"use strict";
// ブロックの中に入れないと、定義した変数がブラウザのグローバルスコープに登録されてしまい邪魔なので
(async () => {
window.onerror = (e) => {
console.error(e);
renderError("SOMETHING_HAPPENED", e);
};
window.onunhandledrejection = (e) => {
console.error(e);
renderError("SOMETHING_HAPPENED_IN_PROMISE", e);
};
//#region Detect language & fetch translations
const v = localStorage.getItem("v") || VERSION;
const supportedLangs = LANGS;
let lang = localStorage.getItem("lang");
if (lang == null || !supportedLangs.includes(lang)) {
if (supportedLangs.includes(navigator.language)) {
lang = navigator.language;
} else {
lang = supportedLangs.find((x) => x.split("-")[0] === navigator.language);
// Fallback
if (lang == null) lang = "en-US";
}
}
const res = await fetch(`/assets/locales/${lang}.${v}.json`);
if (res.status === 200) {
localStorage.setItem("lang", lang);
localStorage.setItem("locale", await res.text());
localStorage.setItem("localeVersion", v);
} else {
await checkUpdate();
renderError("LOCALE_FETCH");
return;
}
//#endregion
//#region Script
function importAppScript() {
import(`/assets/${CLIENT_ENTRY}`).catch(async (e) => {
await checkUpdate();
console.error(e);
renderError("APP_IMPORT", e);
});
}
// タイミングによっては、この時点でDOMの構築が済んでいる場合とそうでない場合とがある
if (document.readyState !== "loading") {
importAppScript();
} else {
window.addEventListener("DOMContentLoaded", () => {
importAppScript();
});
}
//#endregion
//#region Theme
const theme = localStorage.getItem("theme");
if (theme) {
for (const [k, v] of Object.entries(JSON.parse(theme))) {
document.documentElement.style.setProperty(`--${k}`, v.toString());
// HTMLの theme-color 適用
if (k === "htmlThemeColor") {
for (const tag of document.head.children) {
if (
tag.tagName === "META" &&
tag.getAttribute("name") === "theme-color"
) {
tag.setAttribute("content", v);
break;
}
}
}
}
}
const colorSchema = localStorage.getItem("colorSchema");
if (colorSchema) {
document.documentElement.style.setProperty("color-schema", colorSchema);
}
//#endregion
let fontSize = localStorage.getItem("fontSize");
if (fontSize) {
if (fontSize < 10) {
// need to do this for now, as values before were 1, 2, 3 depending on the option
localStorage.setItem("fontSize", null);
fontSize = localStorage.getItem("fontSize");
}
document.documentElement.style.fontSize = `${fontSize}px`;
}
if (["ja-JP", "ja-KS", "ko-KR", "zh-CN", "zh-TW"].includes(lang)) {
document.documentElement.classList.add("useCJKFont");
}
const useSystemFont = localStorage.getItem("useSystemFont");
if (useSystemFont) {
document.documentElement.classList.add("useSystemFont");
}
const wallpaper = localStorage.getItem("wallpaper");
if (wallpaper) {
document.documentElement.style.backgroundImage = `url(${wallpaper})`;
}
const customCss = localStorage.getItem("customCss");
if (customCss && customCss.length > 0) {
const style = document.createElement("style");
style.innerHTML = customCss;
document.head.appendChild(style);
}
async function addStyle(styleText) {
const css = document.createElement("style");
css.appendChild(document.createTextNode(styleText));
document.head.appendChild(css);
}
function renderError(code, details) {
let errorsElement = document.getElementById("errors");
if (!errorsElement) {
document.body.innerHTML = `
An error has occurred!
Don't worry, it's (probably) not your fault.
Please make sure your browser is up-to-date.
While we don't serve ads, ad-blockers might interfere with this application,
so disabling them might also fix this issue.
If the problem persists after refreshing, please contact your instance's administrator.
You may also try the following options:
`;
errorsElement = document.getElementById("errors");
}
const detailsElement = document.createElement("details");
detailsElement.innerHTML = `
ERROR CODE: ${code}
${JSON.stringify(details)}`;
errorsElement.appendChild(detailsElement);
addStyle(`
* {
font-family: BIZ UDGothic, Roboto, HelveticaNeue, Arial, sans-serif;
}
#iceshrimp_app,
#splash {
display: none !important;
}
body,
html {
background-color: #191724;
color: #e0def4;
justify-content: center;
margin: auto;
padding: 10px;
text-align: center;
}
button {
border-radius: 999px;
padding: 0px 12px 0px 12px;
border: none;
cursor: pointer;
margin-bottom: 12px;
}
.button-big {
background: linear-gradient(90deg, rgb(196, 167, 231), rgb(235, 188, 186));
line-height: 50px;
}
.button-big:hover {
background: rgb(49, 116, 143);
}
.button-small {
background: #444;
line-height: 40px;
}
.button-small:hover {
background: #555;
}
.button-label-big {
color: #191724;
font-weight: bold;
font-size: 20px;
padding: 12px;
}
.button-label-small {
color: rgb(156, 207, 216);
font-size: 16px;
padding: 12px;
}
a {
color: rgb(156, 207, 216);
text-decoration: none;
}
p,
li {
font-size: 16px;
}
.dont-worry,
#msg {
font-size: 18px;
}
.icon-warning {
color: #f6c177;
height: 4rem;
padding-top: 2rem;
}
h1 {
font-size: 32px;
}
code {
font-family: Fira, FiraCode, monospace;
}
details {
background: #1f1d2e;
margin-bottom: 2rem;
padding: 0.5rem 1rem;
width: 40rem;
border-radius: 10px;
justify-content: center;
margin: auto;
}
summary {
cursor: pointer;
}
summary > * {
display: inline;
}
@media screen and (max-width: 500px) {
details {
width: 50%;
}
`);
}
async function checkUpdate() {
try {
const res = await fetch("/api/meta", {
method: "POST",
cache: "no-cache",
});
const meta = await res.json();
if (meta.version != v) {
localStorage.setItem("v", meta.version);
refresh();
}
} catch (e) {
console.error(e);
renderError("UPDATE_CHECK", e);
throw e;
}
}
function refresh() {
// Clear cache (service worker)
try {
navigator.serviceWorker.controller.postMessage("clear");
navigator.serviceWorker.getRegistrations().then((registrations) => {
registrations.forEach((registration) => registration.unregister());
});
} catch (e) {
console.error(e);
}
location.reload();
}
})();