Basic alerts

apps/chat.css

 .post .text p:first-child {
     display: inline;
 }
+.badge {
+    display: inline-flex;
+    justify-content: center;
+    align-items: center;
+    color: white;
+    background-color: silver;
+    border: none;
+    border-radius: 5px;
+    font-family: verdana;
+    font-size: xx-small;
+    font-weight: bold;
+    min-width: 15px;
+    padding: 0 3px;
+    margin: 3px 3px;
+    line-height: 1.5;
+}
+.badge.on {
+    background-color: crimson;
+}

apps/chat.js

 }
 const ChatConfig = {
     isOn: false,
+    toggle() {
+        ChatConfig.isOn = !ChatConfig.isOn
+    },
     view() {
-        return m('button', {onclick: () => {ChatConfig.isOn = !ChatConfig.isOn}}, 'chat')
-    }
+        const on = Chat.unseenCount ? '.on' : ''
+        return m('button', {onclick: this.toggle}, 'chat ',
+            m('.badge' + on, Chat.unseenCount),
+        )
+    },
 }
 const Chat = {
     posts: [],
-    oncreate() {
-        listen('post', ({detail}) => {
-            this.posts.push(detail)
-            m.redraw()
-        })
-        listen('logout', () => {
-            this.posts = []
-        })
-        marked.setOptions({
-            breaks: true,
-        })
+    unseenCount: 0,
+    originalTitle: 'pico.chat',
+    onupdate: () => {
+        if(document.hasFocus() && ChatConfig.isOn) {
+            Chat.unseenCount = 0
+        }
+        const extra = Chat.unseenCount ? ` (${Chat.unseenCount})` : ``
+        document.title = Chat.originalTitle + extra
     },
     view() {
         return ChatConfig.isOn ? [
             m('.not-chat', {onclick: () => ChatConfig.isOn = false}),
             m('.chat',
-                m('.posts', this.posts.map(post => m(Post, {post}))),
+                m('.posts', Chat.posts.map(post => m(Post, {post}))),
                 m(TextBox),
             )
         ] : null
     },
 }
+addEventListener('focus', m.redraw)
+addEventListener('post', ({detail}) => {
+    Chat.posts.push(detail)
+    Chat.unseenCount += !(document.hasFocus() && ChatConfig.isOn)
+    m.redraw()
+})
+addEventListener('logout', () => {
+    Chat.posts = []
+    Chat.unseenCount = 0
+})
+marked.setOptions({
+    breaks: true,
+})

pico.js

     username: null,
     websocket: null,
     online: [],
-    messages: [],
     get isConnected() {
         return State.websocket && State.websocket.readyState === 1
     },
 }
 listen('login', ({detail}) => {
     State.username = detail.value
-    State.messages = []
 })
 listen('logout', ({detail}) => {
     State.online = []
     Object.assign(State, detail)
 })
 const doNotLog = new Set(['login', 'state', 'post', 'peerInfo', 'join', 'leave'])
-
-/*
-*
-* ALERTS
-*
-*/
-State.unseen = 0
-listen('beep', () => {State.unseen += !document.hasFocus(); updateTitle()})
-listen('focus', () => {State.unseen = 0; updateTitle()})
-const updateTitle = () => {
-    document.title = location.href.split('//')[1] + (State.unseen ? ` (${State.unseen})` : ``)
-}
 /*
 *
 * UTILS
                 ),
                 State.isConnected ? [
                     m('button', {onclick: Base.sendLogout}, 'pick name'),
-                    m('button', {onclick: () => navigator.clipboard.writeText(location)}, 'copy url'),
                 ] : null,
                 State.isConnected ? m(VideoConfig) : null,
                 State.isConnected ? m(ChatConfig) : null,