javascript harder
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a8d18d8812
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@ -321,54 +321,70 @@ window.addEventListener("load", async function() {
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pnb.style.display = "none"
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pnb.style.display = "none"
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}
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}
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pnb.addEventListener('click', handleSubscribeToggle)
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})
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async function handleSubscribeToggle(evt) {
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const pnb = document.querySelector("#push-notifications")
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evt.preventDefault()
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let reg
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try {
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reg = await navigator.serviceWorker.getRegistration()
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} catch(err) {
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console.error("Could not get sw registration", err)
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return
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}
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console.info("got registration")
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pnb.addEventListener('click', async evt =>{
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let sub
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let sub
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try {
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try {
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sub = await reg.pushManager.getSubscription()
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sub = await reg.pushManager.getSubscription()
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} catch(err) {
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} catch(err) {
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console.error("Could not get pushmanager subscription", err)
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console.error("Could not get pushmanager subscription", err)
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return
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}
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}
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console.info("got subscription: ", sub)
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if (!pnb.classList.contains("subscribed")) {
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if (!pnb.classList.contains("subscribed")) {
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if (await createPushSubscription()) {
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console.info("creating subscription")
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try {
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await createPushSubscription(reg)
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pnb.classList.add("subscribed")
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pnb.classList.add("subscribed")
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pnb.innerHTML = "🔕"
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pnb.innerHTML = "🔕"
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} catch (err) {
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console.error("could not subscribe", err)
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}
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}
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} else {
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} else {
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if (await deletePushSubscription()) {
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console.info("deleting subscription")
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try {
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await deletePushSubscription(reg, sub)
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pnb.classList.remove("subscribed")
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pnb.classList.remove("subscribed")
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pnb.innerHTML = "🔔"
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pnb.innerHTML = "🔔"
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} catch(err) {
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console.error("could not unsubscribe", err)
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}
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}
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}
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}
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}
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if (sub) {
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pnb.classList.add("subscribed")
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pnb.innerHTML = "🔕"
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} else {
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pnb.classList.remove("subscribed")
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pnb.innerHTML = "🔔"
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}
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})
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})
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async function createPushSubscription() {
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async function createPushSubscription(registration) {
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const registration = await navigator.serviceWorker.getRegistration()
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const result = await new Promise((res, rej) => Notification.requestPermission().then(res).catch(rej))
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const result = await Notification.requestPermission();
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if (result == "denied") {
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if (result == "denied") {
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console.error("permission to subscribe denied")
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return false
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return false
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}
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}
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console.info("allowed to subscribe")
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const subscription = await registration.pushManager.subscribe({
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const subscription = await registration.pushManager.subscribe({
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userVisibleOnly: true,
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userVisibleOnly: true,
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applicationServerKey: urlB64ToUint8Array(window._PushKey)
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applicationServerKey: urlB64ToUint8Array(window._PushKey)
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})
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})
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console.info("subscribed to push notification service")
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return await CreateSubscription(JSON.stringify(subscription.toJSON()))
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return await CreateSubscription(JSON.stringify(subscription.toJSON()))
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}
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}
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async function deletePushSubscription() {
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async function deletePushSubscription(registration, subscription) {
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const registration = await navigator.serviceWorker.getRegistration()
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const subscription = await registration.pushManager.getSubscription()
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if (await subscription.unsubscribe()) {
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if (await subscription.unsubscribe()) {
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return await DeleteSubscription(JSON.stringify(subscription.toJSON()))
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return await DeleteSubscription(JSON.stringify(subscription.toJSON()))
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}
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}
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