Shadow

apps/chat.css

     right: 0;
     top: 0;
 }
-.not-chat {
-    z-index: 999;
-    background-color: rgba(0, 0, 0, 0.8);
-    position: fixed;
-    height: 100vh;
-    width: 100vw;
-    right: 0;
-    top: 0;
-}
 .chat .actions {
     display: grid;
     grid-template-columns: 1fr auto;
     margin: 3px 3px;
     line-height: 1.5;
 }
-.badge.on {
+.badge.hot {
     background-color: crimson;
 }

apps/chat.js

     }
 }
 const ChatConfig = {
-    isOn: false,
-    toggle() {
-        ChatConfig.isOn = !ChatConfig.isOn
-    },
     view() {
-        const on = Chat.unseenCount ? '.on' : ''
-        return m('button', {onclick: this.toggle}, 'chat ',
-            m('.badge' + on, Chat.unseenCount),
+        const onclick = () => {Chat.isOn = !Chat.isOn}
+        const hot = Chat.unseenCount ? '.hot' : ''
+        return m('button', {onclick}, 'chat ',
+            m('.badge' + hot, Chat.unseenCount),
         )
     },
 }
     unseenCount: 0,
     originalTitle: 'pico.chat',
     onupdate: () => {
-        if(document.hasFocus() && ChatConfig.isOn) {
+        if(document.hasFocus() && Chat.isOn) {
             Chat.unseenCount = 0
+            textbox.focus()
         }
         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', Chat.posts.map(post => m(Post, {post}))),
-                m(TextBox),
-            )
-        ] : null
+        return m('.chat',
+            m('.posts', Chat.posts.map(post => m(Post, {post}))),
+            m(TextBox),
+        )
     },
 }
 addEventListener('focus', m.redraw)

apps/volume.js

 const VolumeMap = {
+    isOn: false,
     size: 200,
     positions: new Map(),
+    toggle() {
+        VolumeMap.isOn = !VolumeMap.isOn
+    },
     onremove() {
         VolumeMap.positions.clear()
     },

pico.js

 * BASE
 *
 */
+const Shadow = {
+    oncreate({dom, attrs}) {
+        dom.listener = () => attrs.app.isOn = !attrs.app.isOn
+        addEventListener(attrs.key, dom.listener)
+    },
+    onremove({dom, attrs}) {
+        removeEventListener(attrs.key, dom.listener)
+    },
+    view({attrs}) {
+        const style = {
+            zIndex: 999,
+            backgroundColor: 'rgba(0, 0, 0, 0.8)',
+            visibility: attrs.app.isOn ? 'unset' : 'hidden',
+            position: 'fixed',
+            height: '100vh',
+            width: '100vw',
+            right: 0,
+            top: 0,
+        }
+        const onclick = ({target: {classList}}) => {
+            classList.contains('shadow') && signal({kind: attrs.key})
+        }
+        return m('.shadow', {style, onclick}, m(attrs.app))
+    },
+}
 const Settings = {
     get(key) {
         try {
                     m('button', {onclick: Base.sendLogout}, 'settings'),
                     m(VideoConfig),
                     m(ChatConfig),
+                    m('button', {onclick: VolumeMap.toggle}, 'volume'),
                 ] : [
                     m('form.login',
                         {onsubmit: Base.sendLogin},
                 m('span.error', State.info),
             ),
             State.isConnected ? [
-                m(StreamContainer),
-                m(Chat),
-                params.get('map') === 'true' ? m(VolumeMap) : null,
+                m(StreamContainer, {key: 'lolo'}),
+                m(Shadow, {key: 'chat-shadow', app: Chat}),
+                m(Shadow, {key: 'map-shadow', app: VolumeMap}),
             ] : m(Settings),
         )
     },