egirlskey/src/client/app/boot.js
2019-02-18 04:52:40 +09:00

175 lines
4.5 KiB
JavaScript

/**
* MISSKEY BOOT LOADER
* (ENTRY POINT)
*/
'use strict';
(async function() {
// キャッシュ削除要求があれば従う
if (localStorage.getItem('shouldFlush') == 'true') {
refresh();
return;
}
const langs = LANGS;
//#region Apply theme
const theme = localStorage.getItem('theme');
if (theme) {
for (const [k, v] of Object.entries(JSON.parse(theme))) {
document.documentElement.style.setProperty(`--${k}`, v.toString());
}
}
//#endregion
//#region Load settings
let settings = null;
const vuex = localStorage.getItem('vuex');
if (vuex) {
settings = JSON.parse(vuex);
}
//#endregion
// Get the current url information
const url = new URL(location.href);
//#region Detect app name
let app = null;
if (`${url.pathname}/`.startsWith('/docs/')) app = 'docs';
if (`${url.pathname}/`.startsWith('/dev/')) app = 'dev';
if (`${url.pathname}/`.startsWith('/auth/')) app = 'auth';
if (`${url.pathname}/`.startsWith('/admin/')) app = 'admin';
if (`${url.pathname}/`.startsWith('/test/')) app = 'test';
//#endregion
// Script version
const ver = localStorage.getItem('v') || VERSION;
//#region Detect the user language
let lang = null;
if (langs.includes(navigator.language)) {
lang = navigator.language;
} else {
lang = langs.find(x => x.split('-')[0] == navigator.language);
if (lang == null) {
// Fallback
lang = 'en-US';
}
}
if (settings && settings.device.lang &&
langs.includes(settings.device.lang))
{
lang = settings.device.lang;
}
localStorage.setItem('lang', lang);
//#endregion
//#region Fetch locale data
const cachedLocale = localStorage.getItem('locale');
const localeKey = localStorage.getItem('localeKey');
if (cachedLocale == null || localeKey != `${ver}.${lang}`) {
const locale = await fetch(`/assets/locales/${lang}.json?ver=${ver}`)
.then(response => response.json());
localStorage.setItem('locale', JSON.stringify(locale));
localStorage.setItem('localeKey', `${ver}.${lang}`);
}
//#endregion
// Detect the user agent
const ua = navigator.userAgent.toLowerCase();
const isMobile = /mobile|iphone|ipad|android/.test(ua);
// Get the <head> element
const head = document.getElementsByTagName('head')[0];
// If mobile, insert the viewport meta tag
if (isMobile) {
const meta = document.createElement('meta');
meta.setAttribute('name', 'viewport');
meta.setAttribute('content',
'width=device-width,' +
'initial-scale=1,' +
'minimum-scale=1,' +
'maximum-scale=1,' +
'user-scalable=no');
head.appendChild(meta);
}
// Switch desktop or mobile version
if (app == null) {
app = isMobile ? 'mobile' : 'desktop';
}
// Get salt query
const salt = localStorage.getItem('salt')
? `?salt=${localStorage.getItem('salt')}`
: '';
// Load an app script
// Note: 'async' make it possible to load the script asyncly.
// 'defer' make it possible to run the script when the dom loaded.
const script = document.createElement('script');
script.setAttribute('src', `/assets/${app}.${ver}.js${salt}`);
script.setAttribute('async', 'true');
script.setAttribute('defer', 'true');
head.appendChild(script);
// 3秒経ってもスクリプトがロードされない場合はバージョンが古くて
// 404になっているせいかもしれないので、バージョンを確認して古ければ更新する
//
// 読み込まれたスクリプトからこのタイマーを解除できるように、
// グローバルにタイマーIDを代入しておく
window.mkBootTimer = window.setTimeout(async () => {
// Fetch meta
const res = await fetch('/api/meta', {
method: 'POST',
cache: 'no-cache'
});
// Parse
const meta = await res.json();
// Compare versions
if (meta.version != ver) {
localStorage.setItem('v', meta.version);
alert(
'Misskeyの新しいバージョンがあります。ページを再度読み込みします。' +
'\n\n' +
'New version of Misskey available. The page will be reloaded.');
refresh();
}
}, 3000);
function refresh() {
localStorage.setItem('shouldFlush', 'false');
localStorage.removeItem('locale');
// Random
localStorage.setItem('salt', Math.random().toString().substr(2, 8));
// Clear cache (service worker)
try {
navigator.serviceWorker.controller.postMessage('clear');
navigator.serviceWorker.getRegistrations().then(registrations => {
for (const registration of registrations) registration.unregister();
});
} catch (e) {
console.error(e);
}
// Force reload
location.reload(true);
}
})();