pwa.js
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import $ from 'yoho-jquery';
import yoho from 'yoho-app';
const isHttps = location.protocol === 'https:';
function register() {
const t = window.STATIC_RESOURCE_HASH || '';
const staticServer = window.STATIC_RESOURCE_PATH || '';
if (navigator && navigator.serviceWorker && navigator.serviceWorker.register) {
navigator.serviceWorker.register(`/sw.js?t=${t}&staticServer=${staticServer}`, {
scope: '/'
}).then(() => {
if (window._hmt && window._hmt.push) {
window._hmt.push(['_trackEvent', 'SW registered', 'SUCCESS',
document.title, location.href]);
}
}).catch(err => {
if (window._hmt && window._hmt.push) {
window._hmt.push(['_trackEvent', 'SW registered', 'FAILED',
document.title, JSON.stringify(err)]);
}
});
}
}
function unregister() {
if (isHttps && navigator && navigator.serviceWorker && navigator.serviceWorker.getRegistrations) {
navigator.serviceWorker.getRegistrations().then(registrations => {
for (let registration of registrations) {
registration.unregister().then(() => {
if (window._hmt && window._hmt.push) {
window._hmt.push(['_trackEvent', 'SW unregistered', 'SUCCESS',
document.title, location.href]);
}
}).catch(err => {
if (window._hmt && window._hmt.push) {
window._hmt.push(['_trackEvent', 'SW unregistered', 'FAILED',
document.title, JSON.stringify(err)]);
}
});
}
});
}
}
window.addEventListener('load', function() {
// Android WebView 中 UserAgent 不正确
if (!yoho.isApp && !(yoho.isAndroid && yoho.isWechat)) {
if ('serviceWorker' in navigator && isHttps) {
$.ajax({
url: '//m.yohobuy.com/api/switch',
dataType: 'jsonp',
cache: false,
success(res) {
const usePwa = isHttps && res && res.usePwa;
if (usePwa) {
register();
} else {
unregister();
}
}
});
}
}
});
// 暂时不自动弹出添加到桌面按钮
window.addEventListener('beforeinstallprompt', function(e) {
e.preventDefault();
return false;
});