From 99332037bfe97a4652939cdcffaea4118deeedf3 Mon Sep 17 00:00:00 2001
From: schlagmichdoch <schlagmichdoch@users.noreply.github.com>
Date: Thu, 9 Nov 2023 03:48:17 +0100
Subject: [PATCH] Defer loading of all render-blocking resources until the UI
 has loaded

---
 public/index.html                             |  19 +-
 public/scripts/main.js                        | 307 +++++++
 public/scripts/network.js                     |  14 -
 .../{NoSleep.min.js => no-sleep.min.js}       |   0
 public/scripts/persistent-storage.js          | 299 ++++++
 .../scripts/{QRCode.min.js => qr-code.min.js} |   0
 public/scripts/ui.js                          | 577 +-----------
 public/scripts/util-main.js                   |  17 +
 public/scripts/util.js                        |   3 -
 public/service-worker.js                      |  12 +-
 public/styles/deferred-styles.css             | 727 +++++++++++++++
 public/{styles.css => styles/main-styles.css} | 857 ++----------------
 12 files changed, 1447 insertions(+), 1385 deletions(-)
 create mode 100644 public/scripts/main.js
 rename public/scripts/{NoSleep.min.js => no-sleep.min.js} (100%)
 create mode 100644 public/scripts/persistent-storage.js
 rename public/scripts/{QRCode.min.js => qr-code.min.js} (100%)
 create mode 100644 public/scripts/util-main.js
 create mode 100644 public/styles/deferred-styles.css
 rename public/{styles.css => styles/main-styles.css} (51%)

diff --git a/public/index.html b/public/index.html
index cf1fdde..b71028d 100644
--- a/public/index.html
+++ b/public/index.html
@@ -35,7 +35,7 @@
     <meta property="og:image" content="images/logo_transparent_512x512.png">
     <!-- Resources -->
     <link rel="preload" href="lang/en.json" as="fetch">
-    <link rel="stylesheet" type="text/css" href="styles.css">
+    <link rel="stylesheet" type="text/css" href="styles/main-styles.css">
     <link rel="manifest" href="manifest.json">
 </head>
 
@@ -595,14 +595,17 @@
 
     </svg>
     <!-- Scripts -->
-    <script src="scripts/util.js"></script>
-    <script src="scripts/localization.js"></script>
     <script src="scripts/theme.js"></script>
-    <script src="scripts/network.js"></script>
-    <script src="scripts/ui.js"></script>
-    <script src="scripts/QRCode.min.js" async></script>
-    <script src="scripts/zip.min.js" async></script>
-    <script src="scripts/NoSleep.min.js" async></script>
+    <script src="scripts/util-main.js"></script>
+    <script src="scripts/localization.js"></script>
+    <script src="scripts/persistent-storage.js"></script>
+    <script src="scripts/main.js"></script>
+    <script defer src="scripts/util.js"></script>
+    <script defer src="scripts/network.js"></script>
+    <script defer src="scripts/ui.js"></script>
+    <script defer src="scripts/qr-code.min.js"></script>
+    <script defer src="scripts/zip.min.js"></script>
+    <script defer src="scripts/no-sleep.min.js"></script>
     <!-- Sounds -->
     <audio id="blop" autobuffer="true">
         <source src="sounds/blop.mp3" type="audio/mpeg">
diff --git a/public/scripts/main.js b/public/scripts/main.js
new file mode 100644
index 0000000..4e412eb
--- /dev/null
+++ b/public/scripts/main.js
@@ -0,0 +1,307 @@
+class FooterUI {
+
+    constructor() {
+        this.$displayName = $('display-name');
+        this.$discoveryWrapper = $$('footer .discovery-wrapper');
+
+        // Show "Loading…"
+        this.$displayName.setAttribute('placeholder', this.$displayName.dataset.placeholder);
+
+        this.$displayName.addEventListener('keydown', e => this._onKeyDownDisplayName(e));
+        this.$displayName.addEventListener('keyup', e => this._onKeyUpDisplayName(e));
+        this.$displayName.addEventListener('blur', e => this._saveDisplayName(e.target.innerText));
+
+        Events.on('display-name', e => this._onDisplayName(e.detail.displayName));
+        Events.on('self-display-name-changed', e => this._insertDisplayName(e.detail));
+
+        // Load saved display name on page load
+        Events.on('ws-connected', _ => this._loadSavedDisplayName());
+
+        Events.on('evaluate-footer-badges', _ => this._evaluateFooterBadges());
+    }
+
+    _evaluateFooterBadges() {
+        if (this.$discoveryWrapper.querySelectorAll('div:last-of-type > span[hidden]').length < 2) {
+            this.$discoveryWrapper.classList.remove('row');
+            this.$discoveryWrapper.classList.add('column');
+        }
+        else {
+            this.$discoveryWrapper.classList.remove('column');
+            this.$discoveryWrapper.classList.add('row');
+        }
+        Events.fire('redraw-canvas');
+        Events.fire('fade-in-ui');
+    }
+
+    _loadSavedDisplayName() {
+        this._getSavedDisplayName()
+            .then(displayName => {
+                console.log("Retrieved edited display name:", displayName)
+                if (displayName) {
+                    Events.fire('self-display-name-changed', displayName);
+                }
+            });
+    }
+
+    _onDisplayName(displayName){
+        console.debug(displayName)
+        // set display name
+        this.$displayName.setAttribute('placeholder', displayName);
+    }
+
+
+    _insertDisplayName(displayName) {
+        this.$displayName.textContent = displayName;
+    }
+
+    _onKeyDownDisplayName(e) {
+        if (e.key === "Enter" || e.key === "Escape") {
+            e.preventDefault();
+            e.target.blur();
+        }
+    }
+
+    _onKeyUpDisplayName(e) {
+        // fix for Firefox inserting a linebreak into div on edit which prevents the placeholder from showing automatically when it is empty
+        if (/^(\n|\r|\r\n)$/.test(e.target.innerText)) e.target.innerText = '';
+    }
+
+    async _saveDisplayName(newDisplayName) {
+        newDisplayName = newDisplayName.replace(/(\n|\r|\r\n)/, '')
+        const savedDisplayName = await this._getSavedDisplayName();
+        if (newDisplayName === savedDisplayName) return;
+
+        if (newDisplayName) {
+            PersistentStorage.set('editedDisplayName', newDisplayName)
+                .then(_ => {
+                    Events.fire('notify-user', Localization.getTranslation("notifications.display-name-changed-permanently"));
+                })
+                .catch(_ => {
+                    console.log("This browser does not support IndexedDB. Use localStorage instead.");
+                    localStorage.setItem('editedDisplayName', newDisplayName);
+                    Events.fire('notify-user', Localization.getTranslation("notifications.display-name-changed-temporarily"));
+                })
+                .finally(() => {
+                    Events.fire('self-display-name-changed', newDisplayName);
+                    Events.fire('broadcast-send', {type: 'self-display-name-changed', detail: newDisplayName});
+                });
+        }
+        else {
+            PersistentStorage.delete('editedDisplayName')
+                .catch(_ => {
+                    console.log("This browser does not support IndexedDB. Use localStorage instead.")
+                    localStorage.removeItem('editedDisplayName');
+                })
+                .finally(() => {
+                    Events.fire('notify-user', Localization.getTranslation("notifications.display-name-random-again"));
+                    Events.fire('self-display-name-changed', '');
+                    Events.fire('broadcast-send', {type: 'self-display-name-changed', detail: ''});
+                });
+        }
+    }
+
+    _getSavedDisplayName() {
+        return new Promise((resolve) => {
+            PersistentStorage.get('editedDisplayName')
+                .then(displayName => {
+                    if (!displayName) displayName = "";
+                    resolve(displayName);
+                })
+                .catch(_ => {
+                    let displayName = localStorage.getItem('editedDisplayName');
+                    if (!displayName) displayName = "";
+                    resolve(displayName);
+                })
+        });
+    }
+}
+
+class BackgroundCanvas {
+    constructor() {
+        this.c = $$('canvas');
+        this.cCtx = this.c.getContext('2d');
+        this.$footer = $$('footer');
+
+        // fade-in on load
+        Events.on('fade-in-ui', _ => this._fadeIn());
+
+        // redraw canvas
+        Events.on('resize', _ => this.init());
+        Events.on('redraw-canvas', _ => this.init());
+        Events.on('translation-loaded', _ => this.init());
+    }
+
+    _fadeIn() {
+        this.c.classList.remove('opacity-0');
+    }
+
+    init() {
+        let oldW = this.w;
+        let oldH = this.h;
+        let oldOffset = this.offset
+        this.w = document.documentElement.clientWidth;
+        this.h = document.documentElement.clientHeight;
+        this.offset = this.$footer.offsetHeight - 27;
+        if (this.h >= 800) this.offset += 10;
+
+        if (oldW === this.w && oldH === this.h && oldOffset === this.offset) return; // nothing has changed
+
+        this.c.width = this.w;
+        this.c.height = this.h;
+        this.x0 = this.w / 2;
+        this.y0 = this.h - this.offset;
+        this.dw = Math.round(Math.max(this.w, this.h, 1000) / 13);
+
+        this.drawCircles(this.cCtx);
+    }
+
+
+    drawCircle(ctx, radius) {
+        ctx.beginPath();
+        ctx.lineWidth = 2;
+        let opacity = Math.max(0, 0.3 * (1 - 1 * radius / Math.max(this.w, this.h)));
+        ctx.strokeStyle = `rgba(128, 128, 128, ${opacity})`;
+        ctx.arc(this.x0, this.y0, radius, 0, 2 * Math.PI);
+        ctx.stroke();
+    }
+
+    drawCircles(ctx) {
+        ctx.clearRect(0, 0, this.w, this.h);
+        for (let i = 0; i < 13; i++) {
+            this.drawCircle(ctx, this.dw * i + 33 + 66);
+        }
+    }
+}
+
+
+class PairDrop {
+    constructor() {
+        this.$header = $$('header.opacity-0');
+        this.$center = $$('#center');
+        this.$footer = $$('footer');
+        this.$xNoPeers = $$('x-no-peers');
+        this.$headerNotificationButton = $('notification');
+        this.$editPairedDevicesHeaderBtn = $('edit-paired-devices');
+        this.$footerInstructionsPairedDevices = $$('.discovery-wrapper .badge-room-secret');
+
+        this.$head = $$('head');
+
+        Events.on('initial-translation-loaded', _ => {
+            const backgroundCanvas = new BackgroundCanvas();
+            const footerUI = new FooterUI();
+
+            Events.on('fade-in-ui', _ => this.fadeInUI())
+            Events.on('fade-in-header', _ => this.fadeInHeader())
+
+            // Evaluate UI elements and fade in UI
+            this.evaluateUI();
+
+            // Load delayed assets
+            this.loadDeferredAssets();
+        });
+    }
+
+    evaluateUI() {
+        // Check whether notification permissions have already been granted
+        if ('Notification' in window && Notification.permission !== 'granted') {
+            this.$headerNotificationButton.removeAttribute('hidden');
+        }
+
+        PersistentStorage
+            .getAllRoomSecrets()
+            .then(roomSecrets => {
+                if (roomSecrets.length > 0) {
+                    this.$editPairedDevicesHeaderBtn.removeAttribute('hidden');
+                    this.$footerInstructionsPairedDevices.removeAttribute('hidden');
+                }
+            })
+            .finally(() => {
+                Events.fire('evaluate-footer-badges');
+                Events.fire('fade-in-header');
+            });
+    }
+
+    fadeInUI() {
+        this.$center.classList.remove('opacity-0');
+        this.$footer.classList.remove('opacity-0');
+
+        // Prevent flickering on load
+        setTimeout(() => {
+            this.$xNoPeers.classList.remove('no-animation-on-load');
+        }, 600);
+    }
+
+    fadeInHeader() {
+        this.$header.classList.remove('opacity-0');
+    }
+
+    loadDeferredAssets() {
+        console.debug("Load deferred assets");
+        if (document.readyState === "loading") {
+            // Loading hasn't finished yet
+            Events.on('DOMContentLoaded', _ => this.hydrate());
+        } else {
+            // `DOMContentLoaded` has already fired
+            this.hydrate();
+        }
+    }
+
+    loadStyleSheet(url, callback) {
+        let stylesheet = document.createElement('link');
+        stylesheet.rel = 'stylesheet';
+        stylesheet.href = url;
+        stylesheet.type = 'text/css';
+        stylesheet.onload = callback;
+        this.$head.appendChild(stylesheet);
+    }
+
+    hydrate() {
+        this.loadStyleSheet('styles/deferred-styles.css', _ => {
+                const peersUI = new PeersUI();
+                const languageSelectDialog = new LanguageSelectDialog();
+                const receiveFileDialog = new ReceiveFileDialog();
+                const receiveRequestDialog = new ReceiveRequestDialog();
+                const sendTextDialog = new SendTextDialog();
+                const receiveTextDialog = new ReceiveTextDialog();
+                const pairDeviceDialog = new PairDeviceDialog();
+                const clearDevicesDialog = new EditPairedDevicesDialog();
+                const publicRoomDialog = new PublicRoomDialog();
+                const base64ZipDialog = new Base64ZipDialog();
+                const toast = new Toast();
+                const notifications = new Notifications();
+                const networkStatusUI = new NetworkStatusUI();
+                const webShareTargetUI = new WebShareTargetUI();
+                const webFileHandlersUI = new WebFileHandlersUI();
+                const noSleepUI = new NoSleepUI();
+                const broadCast = new BrowserTabsConnector();
+                const server = new ServerConnection();
+                const peers = new PeersManager(server);
+        });
+    }
+}
+
+const persistentStorage = new PersistentStorage();
+const pairDrop = new PairDrop();
+const localization = new Localization();
+
+if ('serviceWorker' in navigator) {
+    navigator.serviceWorker
+        .register('/service-worker.js')
+        .then(serviceWorker => {
+            console.log('Service Worker registered');
+            window.serviceWorker = serviceWorker
+        });
+}
+
+window.addEventListener('beforeinstallprompt', installEvent => {
+    if (!window.matchMedia('(display-mode: minimal-ui)').matches) {
+        // only display install btn when not installed
+        const installBtn = $('install')
+        installBtn.removeAttribute('hidden');
+        installBtn.addEventListener('click', () => {
+            installBtn.setAttribute('hidden', true);
+            installEvent.prompt();
+        });
+    }
+    return installEvent.preventDefault();
+});
\ No newline at end of file
diff --git a/public/scripts/network.js b/public/scripts/network.js
index 50bf4b8..ebf04b5 100644
--- a/public/scripts/network.js
+++ b/public/scripts/network.js
@@ -1360,17 +1360,3 @@ class FileDigester {
     }
 
 }
-
-class Events {
-    static fire(type, detail = {}) {
-        window.dispatchEvent(new CustomEvent(type, { detail: detail }));
-    }
-
-    static on(type, callback, options) {
-        return window.addEventListener(type, callback, options);
-    }
-
-    static off(type, callback, options) {
-        return window.removeEventListener(type, callback, options);
-    }
-}
diff --git a/public/scripts/NoSleep.min.js b/public/scripts/no-sleep.min.js
similarity index 100%
rename from public/scripts/NoSleep.min.js
rename to public/scripts/no-sleep.min.js
diff --git a/public/scripts/persistent-storage.js b/public/scripts/persistent-storage.js
new file mode 100644
index 0000000..1e98e33
--- /dev/null
+++ b/public/scripts/persistent-storage.js
@@ -0,0 +1,299 @@
+class PersistentStorage {
+    constructor() {
+        if (!('indexedDB' in window)) {
+            PersistentStorage.logBrowserNotCapable();
+            return;
+        }
+        const DBOpenRequest = window.indexedDB.open('pairdrop_store', 4);
+        DBOpenRequest.onerror = e => {
+            PersistentStorage.logBrowserNotCapable();
+            console.log('Error initializing database: ');
+            console.log(e)
+        };
+        DBOpenRequest.onsuccess = _ => {
+            console.log('Database initialised.');
+        };
+        DBOpenRequest.onupgradeneeded = e => {
+            const db = e.target.result;
+            const txn = e.target.transaction;
+
+            db.onerror = e => console.log('Error loading database: ' + e);
+
+            console.log(`Upgrading IndexedDB database from version ${e.oldVersion} to version ${e.newVersion}`);
+
+            if (e.oldVersion === 0) {
+                // initiate v1
+                db.createObjectStore('keyval');
+                let roomSecretsObjectStore1 = db.createObjectStore('room_secrets', {autoIncrement: true});
+                roomSecretsObjectStore1.createIndex('secret', 'secret', { unique: true });
+            }
+            if (e.oldVersion <= 1) {
+                // migrate to v2
+                db.createObjectStore('share_target_files');
+            }
+            if (e.oldVersion <= 2) {
+                // migrate to v3
+                db.deleteObjectStore('share_target_files');
+                db.createObjectStore('share_target_files', {autoIncrement: true});
+            }
+            if (e.oldVersion <= 3) {
+                // migrate to v4
+                let roomSecretsObjectStore4 = txn.objectStore('room_secrets');
+                roomSecretsObjectStore4.createIndex('display_name', 'display_name');
+                roomSecretsObjectStore4.createIndex('auto_accept', 'auto_accept');
+            }
+        }
+    }
+
+    static logBrowserNotCapable() {
+        console.log("This browser does not support IndexedDB. Paired devices will be gone after the browser is closed.");
+    }
+
+    static set(key, value) {
+        return new Promise((resolve, reject) => {
+            const DBOpenRequest = window.indexedDB.open('pairdrop_store');
+            DBOpenRequest.onsuccess = e => {
+                const db = e.target.result;
+                const transaction = db.transaction('keyval', 'readwrite');
+                const objectStore = transaction.objectStore('keyval');
+                const objectStoreRequest = objectStore.put(value, key);
+                objectStoreRequest.onsuccess = _ => {
+                    console.log(`Request successful. Added key-pair: ${key} - ${value}`);
+                    resolve(value);
+                };
+            }
+            DBOpenRequest.onerror = e => {
+                reject(e);
+            }
+        })
+    }
+
+    static get(key) {
+        return new Promise((resolve, reject) => {
+            const DBOpenRequest = window.indexedDB.open('pairdrop_store');
+            DBOpenRequest.onsuccess = e => {
+                const db = e.target.result;
+                const transaction = db.transaction('keyval', 'readonly');
+                const objectStore = transaction.objectStore('keyval');
+                const objectStoreRequest = objectStore.get(key);
+                objectStoreRequest.onsuccess = _ => {
+                    console.log(`Request successful. Retrieved key-pair: ${key} - ${objectStoreRequest.result}`);
+                    resolve(objectStoreRequest.result);
+                }
+            }
+            DBOpenRequest.onerror = e => {
+                reject(e);
+            }
+        });
+    }
+
+    static delete(key) {
+        return new Promise((resolve, reject) => {
+            const DBOpenRequest = window.indexedDB.open('pairdrop_store');
+            DBOpenRequest.onsuccess = e => {
+                const db = e.target.result;
+                const transaction = db.transaction('keyval', 'readwrite');
+                const objectStore = transaction.objectStore('keyval');
+                const objectStoreRequest = objectStore.delete(key);
+                objectStoreRequest.onsuccess = _ => {
+                    console.log(`Request successful. Deleted key: ${key}`);
+                    resolve();
+                };
+            }
+            DBOpenRequest.onerror = e => {
+                reject(e);
+            }
+        })
+    }
+
+    static addRoomSecret(roomSecret, displayName, deviceName) {
+        return new Promise((resolve, reject) => {
+            const DBOpenRequest = window.indexedDB.open('pairdrop_store');
+            DBOpenRequest.onsuccess = e => {
+                const db = e.target.result;
+                const transaction = db.transaction('room_secrets', 'readwrite');
+                const objectStore = transaction.objectStore('room_secrets');
+                const objectStoreRequest = objectStore.add({
+                    'secret': roomSecret,
+                    'display_name': displayName,
+                    'device_name': deviceName,
+                    'auto_accept': false
+                });
+                objectStoreRequest.onsuccess = e => {
+                    console.log(`Request successful. RoomSecret added: ${e.target.result}`);
+                    resolve();
+                }
+            }
+            DBOpenRequest.onerror = e => {
+                reject(e);
+            }
+        })
+    }
+
+    static async getAllRoomSecrets() {
+        try {
+            const roomSecrets = await this.getAllRoomSecretEntries();
+            let secrets = [];
+            for (let i = 0; i < roomSecrets.length; i++) {
+                secrets.push(roomSecrets[i].secret);
+            }
+            console.log(`Request successful. Retrieved ${secrets.length} room_secrets`);
+            return(secrets);
+        } catch (e) {
+            this.logBrowserNotCapable();
+            return 0;
+        }
+    }
+
+    static getAllRoomSecretEntries() {
+        return new Promise((resolve, reject) => {
+            const DBOpenRequest = window.indexedDB.open('pairdrop_store');
+            DBOpenRequest.onsuccess = (e) => {
+                const db = e.target.result;
+                const transaction = db.transaction('room_secrets', 'readonly');
+                const objectStore = transaction.objectStore('room_secrets');
+                const objectStoreRequest = objectStore.getAll();
+                objectStoreRequest.onsuccess = e => {
+                    resolve(e.target.result);
+                }
+            }
+            DBOpenRequest.onerror = (e) => {
+                reject(e);
+            }
+        });
+    }
+
+    static getRoomSecretEntry(roomSecret) {
+        return new Promise((resolve, reject) => {
+            const DBOpenRequest = window.indexedDB.open('pairdrop_store');
+            DBOpenRequest.onsuccess = e => {
+                const db = e.target.result;
+                const transaction = db.transaction('room_secrets', 'readonly');
+                const objectStore = transaction.objectStore('room_secrets');
+                const objectStoreRequestKey = objectStore.index("secret").getKey(roomSecret);
+                objectStoreRequestKey.onsuccess = e => {
+                    const key = e.target.result;
+                    if (!key) {
+                        console.log(`Nothing to retrieve. Entry for room_secret not existing: ${roomSecret}`);
+                        resolve();
+                        return;
+                    }
+                    const objectStoreRequestRetrieval = objectStore.get(key);
+                    objectStoreRequestRetrieval.onsuccess = e => {
+                        console.log(`Request successful. Retrieved entry for room_secret: ${key}`);
+                        resolve({
+                            "entry": e.target.result,
+                            "key": key
+                        });
+                    }
+                    objectStoreRequestRetrieval.onerror = (e) => {
+                        reject(e);
+                    }
+                };
+            }
+            DBOpenRequest.onerror = (e) => {
+                reject(e);
+            }
+        });
+    }
+
+    static deleteRoomSecret(roomSecret) {
+        return new Promise((resolve, reject) => {
+            const DBOpenRequest = window.indexedDB.open('pairdrop_store');
+            DBOpenRequest.onsuccess = (e) => {
+                const db = e.target.result;
+                const transaction = db.transaction('room_secrets', 'readwrite');
+                const objectStore = transaction.objectStore('room_secrets');
+                const objectStoreRequestKey = objectStore.index("secret").getKey(roomSecret);
+                objectStoreRequestKey.onsuccess = e => {
+                    if (!e.target.result) {
+                        console.log(`Nothing to delete. room_secret not existing: ${roomSecret}`);
+                        resolve();
+                        return;
+                    }
+                    const key = e.target.result;
+                    const objectStoreRequestDeletion = objectStore.delete(key);
+                    objectStoreRequestDeletion.onsuccess = _ => {
+                        console.log(`Request successful. Deleted room_secret: ${key}`);
+                        resolve(roomSecret);
+                    }
+                    objectStoreRequestDeletion.onerror = e => {
+                        reject(e);
+                    }
+                };
+            }
+            DBOpenRequest.onerror = e => {
+                reject(e);
+            }
+        })
+    }
+
+    static clearRoomSecrets() {
+        return new Promise((resolve, reject) => {
+            const DBOpenRequest = window.indexedDB.open('pairdrop_store');
+            DBOpenRequest.onsuccess = (e) => {
+                const db = e.target.result;
+                const transaction = db.transaction('room_secrets', 'readwrite');
+                const objectStore = transaction.objectStore('room_secrets');
+                const objectStoreRequest = objectStore.clear();
+                objectStoreRequest.onsuccess = _ => {
+                    console.log('Request successful. All room_secrets cleared');
+                    resolve();
+                };
+            }
+            DBOpenRequest.onerror = e => {
+                reject(e);
+            }
+        })
+    }
+
+    static updateRoomSecretNames(roomSecret, displayName, deviceName) {
+        return this.updateRoomSecret(roomSecret, undefined, displayName, deviceName);
+    }
+
+    static updateRoomSecretAutoAccept(roomSecret, autoAccept) {
+        return this.updateRoomSecret(roomSecret, undefined, undefined, undefined, autoAccept);
+    }
+
+    static updateRoomSecret(roomSecret, updatedRoomSecret = undefined, updatedDisplayName = undefined, updatedDeviceName = undefined, updatedAutoAccept = undefined) {
+        return new Promise((resolve, reject) => {
+            const DBOpenRequest = window.indexedDB.open('pairdrop_store');
+            DBOpenRequest.onsuccess = e => {
+                const db = e.target.result;
+                this.getRoomSecretEntry(roomSecret)
+                    .then(roomSecretEntry => {
+                        if (!roomSecretEntry) {
+                            resolve(false);
+                            return;
+                        }
+                        const transaction = db.transaction('room_secrets', 'readwrite');
+                        const objectStore = transaction.objectStore('room_secrets');
+                        // Do not use `updatedRoomSecret ?? roomSecretEntry.entry.secret` to ensure compatibility with older browsers
+                        const updatedRoomSecretEntry = {
+                            'secret': updatedRoomSecret !== undefined ? updatedRoomSecret : roomSecretEntry.entry.secret,
+                            'display_name': updatedDisplayName !== undefined ? updatedDisplayName : roomSecretEntry.entry.display_name,
+                            'device_name': updatedDeviceName !== undefined ? updatedDeviceName : roomSecretEntry.entry.device_name,
+                            'auto_accept': updatedAutoAccept !== undefined ? updatedAutoAccept : roomSecretEntry.entry.auto_accept
+                        };
+
+                        const objectStoreRequestUpdate = objectStore.put(updatedRoomSecretEntry, roomSecretEntry.key);
+
+                        objectStoreRequestUpdate.onsuccess = e => {
+                            console.log(`Request successful. Updated room_secret: ${roomSecretEntry.key}`);
+                            resolve({
+                                "entry": updatedRoomSecretEntry,
+                                "key": roomSecretEntry.key
+                            });
+                        }
+
+                        objectStoreRequestUpdate.onerror = (e) => {
+                            reject(e);
+                        }
+                    })
+                    .catch(e => reject(e));
+            };
+
+            DBOpenRequest.onerror = e => reject(e);
+        })
+    }
+}
\ No newline at end of file
diff --git a/public/scripts/QRCode.min.js b/public/scripts/qr-code.min.js
similarity index 100%
rename from public/scripts/QRCode.min.js
rename to public/scripts/qr-code.min.js
diff --git a/public/scripts/ui.js b/public/scripts/ui.js
index d331298..3f4fc97 100644
--- a/public/scripts/ui.js
+++ b/public/scripts/ui.js
@@ -5,22 +5,14 @@ class PeersUI {
         this.$xPeers = $$('x-peers');
         this.$xNoPeers = $$('x-no-peers');
         this.$xInstructions = $$('x-instructions');
-        this.$center = $$('#center');
-        this.$footer = $$('footer');
-        this.$discoveryWrapper = $$('footer .discovery-wrapper');
-        this.$displayName = $('display-name');
-        this.$header = $$('header.opacity-0');
         this.$wsFallbackWarning = $('websocket-fallback');
 
-        this.evaluateHeader = ["notification", "edit-paired-devices"];
-        this.fadedIn = false;
         this.peers = {};
 
         this.pasteMode = {};
         this.pasteMode.activated = false;
         this.pasteMode.descriptor = "";
 
-        Events.on('display-name', e => this._onDisplayName(e.detail.displayName));
         Events.on('peer-joined', e => this._onPeerJoined(e.detail));
         Events.on('peer-added', _ => this._evaluateOverflowing());
         Events.on('peer-connected', e => this._onPeerConnected(e.detail.peerId, e.detail.connectionHash));
@@ -33,7 +25,7 @@ class PeersUI {
         Events.on('dragover', e => this._onDragOver(e));
         Events.on('dragleave', _ => this._onDragEnd());
         Events.on('dragend', _ => this._onDragEnd());
-        Events.on('bg-resize', _ => this._evaluateOverflowing());
+        Events.on('resize', _ => this._evaluateOverflowing());
 
         Events.on('paste', e => this._onPaste(e));
         Events.on('activate-paste-mode', e => this._activatePasteMode(e.detail.files, e.detail.text));
@@ -42,24 +34,7 @@ class PeersUI {
 
         this.$cancelPasteModeBtn.addEventListener('click', _ => this._cancelPasteMode());
 
-        // Show "Loading…"
-        this.$displayName.setAttribute('placeholder', this.$displayName.dataset.placeholder);
-
-        this.$displayName.addEventListener('keydown', e => this._onKeyDownDisplayName(e));
-        this.$displayName.addEventListener('keyup', e => this._onKeyUpDisplayName(e));
-        this.$displayName.addEventListener('blur', e => this._saveDisplayName(e.target.innerText));
-
-        Events.on('self-display-name-changed', e => this._insertDisplayName(e.detail));
         Events.on('peer-display-name-changed', e => this._onPeerDisplayNameChanged(e));
-        Events.on('evaluate-footer-badges', _ => this._evaluateFooterBadges())
-
-        if (!('Notification' in window)) this.evaluateHeader.splice(this.evaluateHeader.indexOf("notification"), 1);
-
-        // wait for evaluation of notification and edit-paired-devices buttons
-        Events.on('header-evaluated', e => this._fadeInHeader(e.detail));
-
-        // Load saved display name on page load
-        Events.on('ws-connected', _ => this._loadSavedDisplayName());
 
         Events.on('ws-config', e => this._evaluateRtcSupport(e.detail))
     }
@@ -76,124 +51,6 @@ class PeersUI {
         }
     }
 
-    _loadSavedDisplayName() {
-        this._getSavedDisplayName()
-            .then(displayName => {
-                console.log("Retrieved edited display name:", displayName)
-                if (displayName) {
-                    Events.fire('self-display-name-changed', displayName);
-                }
-            });
-    }
-
-    _onDisplayName(displayName){
-        // set display name
-        this.$displayName.setAttribute('placeholder', displayName);
-    }
-
-    _fadeInHeader(id) {
-        this.evaluateHeader.splice(this.evaluateHeader.indexOf(id), 1);
-        console.log(`Header btn ${id} evaluated. ${this.evaluateHeader.length} to go.`);
-
-        if (this.evaluateHeader.length !== 0) return;
-
-        this.$header.classList.remove('opacity-0');
-    }
-
-    _fadeInUI() {
-        if (this.fadedIn) return;
-
-        this.fadedIn = true;
-
-        this.$center.classList.remove('opacity-0');
-        this.$footer.classList.remove('opacity-0');
-
-        // Prevent flickering on load
-        setTimeout(() => {
-            this.$xNoPeers.classList.remove('no-animation-on-load');
-        }, 600);
-
-        Events.fire('ui-faded-in');
-    }
-
-    _evaluateFooterBadges() {
-        if (this.$discoveryWrapper.querySelectorAll('div:last-of-type > span[hidden]').length < 2) {
-            this.$discoveryWrapper.classList.remove('row');
-            this.$discoveryWrapper.classList.add('column');
-        }
-        else {
-            this.$discoveryWrapper.classList.remove('column');
-            this.$discoveryWrapper.classList.add('row');
-        }
-        Events.fire('redraw-canvas');
-        this._fadeInUI();
-    }
-
-    _insertDisplayName(displayName) {
-        this.$displayName.textContent = displayName;
-    }
-
-    _onKeyDownDisplayName(e) {
-        if (e.key === "Enter" || e.key === "Escape") {
-            e.preventDefault();
-            e.target.blur();
-        }
-    }
-
-    _onKeyUpDisplayName(e) {
-        // fix for Firefox inserting a linebreak into div on edit which prevents the placeholder from showing automatically when it is empty
-        if (/^(\n|\r|\r\n)$/.test(e.target.innerText)) e.target.innerText = '';
-    }
-
-    async _saveDisplayName(newDisplayName) {
-        newDisplayName = newDisplayName.replace(/(\n|\r|\r\n)/, '')
-        const savedDisplayName = await this._getSavedDisplayName();
-        if (newDisplayName === savedDisplayName) return;
-
-        if (newDisplayName) {
-            PersistentStorage.set('editedDisplayName', newDisplayName)
-                .then(_ => {
-                    Events.fire('notify-user', Localization.getTranslation("notifications.display-name-changed-permanently"));
-                })
-                .catch(_ => {
-                    console.log("This browser does not support IndexedDB. Use localStorage instead.");
-                    localStorage.setItem('editedDisplayName', newDisplayName);
-                    Events.fire('notify-user', Localization.getTranslation("notifications.display-name-changed-temporarily"));
-                })
-                .finally(() => {
-                    Events.fire('self-display-name-changed', newDisplayName);
-                    Events.fire('broadcast-send', {type: 'self-display-name-changed', detail: newDisplayName});
-                });
-        }
-        else {
-            PersistentStorage.delete('editedDisplayName')
-                .catch(_ => {
-                    console.log("This browser does not support IndexedDB. Use localStorage instead.")
-                    localStorage.removeItem('editedDisplayName');
-                })
-                .finally(() => {
-                    Events.fire('notify-user', Localization.getTranslation("notifications.display-name-random-again"));
-                    Events.fire('self-display-name-changed', '');
-                    Events.fire('broadcast-send', {type: 'self-display-name-changed', detail: ''});
-                });
-        }
-    }
-
-    _getSavedDisplayName() {
-        return new Promise((resolve) => {
-            PersistentStorage.get('editedDisplayName')
-                .then(displayName => {
-                    if (!displayName) displayName = "";
-                    resolve(displayName);
-                })
-                .catch(_ => {
-                    let displayName = localStorage.getItem('editedDisplayName');
-                    if (!displayName) displayName = "";
-                    resolve(displayName);
-                })
-        });
-    }
-
     _changePeerDisplayName(peerId, displayName) {
         this.peers[peerId].name.displayName = displayName;
         const peerIdNode = $(peerId);
@@ -1292,8 +1149,6 @@ class PairDeviceDialog extends Dialog {
         this.evaluateUrlAttributes();
 
         this.pairPeer = {};
-
-        this._evaluateNumberRoomSecrets();
     }
 
     _onKeyDown(e) {
@@ -1493,7 +1348,6 @@ class PairDeviceDialog extends Dialog {
                     this.$footerInstructionsPairedDevices.setAttribute('hidden', true);
                 }
                 Events.fire('evaluate-footer-badges');
-                Events.fire('header-evaluated', 'edit-paired-devices');
             });
     }
 }
@@ -1544,7 +1398,8 @@ class EditPairedDevicesDialog extends Dialog {
                 $pairedDevice
                     .querySelector('input[type="checkbox"]')
                     .addEventListener('click', e => {
-                        PersistentStorage.updateRoomSecretAutoAccept(roomSecretsEntry.secret, e.target.checked)
+                        PersistentStorage
+                            .updateRoomSecretAutoAccept(roomSecretsEntry.secret, e.target.checked)
                             .then(roomSecretsEntry => {
                                 Events.fire('auto-accept-updated', {
                                     'roomSecret': roomSecretsEntry.entry.secret,
@@ -1556,7 +1411,8 @@ class EditPairedDevicesDialog extends Dialog {
                 $pairedDevice
                     .querySelector('button')
                     .addEventListener('click', e => {
-                        PersistentStorage.deleteRoomSecret(roomSecretsEntry.secret)
+                        PersistentStorage
+                            .deleteRoomSecret(roomSecretsEntry.secret)
                             .then(roomSecret => {
                                 Events.fire('room-secrets-deleted', [roomSecret]);
                                 Events.fire('evaluate-number-room-secrets');
@@ -2197,14 +2053,10 @@ class Notifications {
         // Check if the browser supports notifications
         if (!('Notification' in window)) return;
 
-        // Check whether notification permissions have already been granted
-        if (Notification.permission !== 'granted') {
-            this.$headerNotificationButton = $('notification');
-            this.$headerNotificationButton.removeAttribute('hidden');
-            this.$headerNotificationButton.addEventListener('click', _ => this._requestPermission());
-        }
+        this.$headerNotificationButton = $('notification');
+
+        this.$headerNotificationButton.addEventListener('click', _ => this._requestPermission());
 
-        Events.fire('header-evaluated', 'notification');
 
         Events.on('text-received', e => this._messageNotification(e.detail.text, e.detail.peerId));
         Events.on('files-received', e => this._downloadNotification(e.detail.files));
@@ -2475,306 +2327,6 @@ class NoSleepUI {
     }
 }
 
-class PersistentStorage {
-    constructor() {
-        if (!('indexedDB' in window)) {
-            PersistentStorage.logBrowserNotCapable();
-            return;
-        }
-        const DBOpenRequest = window.indexedDB.open('pairdrop_store', 4);
-        DBOpenRequest.onerror = e => {
-            PersistentStorage.logBrowserNotCapable();
-            console.log('Error initializing database: ');
-            console.log(e)
-        };
-        DBOpenRequest.onsuccess = _ => {
-            console.log('Database initialised.');
-        };
-        DBOpenRequest.onupgradeneeded = e => {
-            const db = e.target.result;
-            const txn = e.target.transaction;
-
-            db.onerror = e => console.log('Error loading database: ' + e);
-
-            console.log(`Upgrading IndexedDB database from version ${e.oldVersion} to version ${e.newVersion}`);
-
-            if (e.oldVersion === 0) {
-                // initiate v1
-                db.createObjectStore('keyval');
-                let roomSecretsObjectStore1 = db.createObjectStore('room_secrets', {autoIncrement: true});
-                roomSecretsObjectStore1.createIndex('secret', 'secret', { unique: true });
-            }
-            if (e.oldVersion <= 1) {
-                // migrate to v2
-                db.createObjectStore('share_target_files');
-            }
-            if (e.oldVersion <= 2) {
-                // migrate to v3
-                db.deleteObjectStore('share_target_files');
-                db.createObjectStore('share_target_files', {autoIncrement: true});
-            }
-            if (e.oldVersion <= 3) {
-                // migrate to v4
-                let roomSecretsObjectStore4 = txn.objectStore('room_secrets');
-                roomSecretsObjectStore4.createIndex('display_name', 'display_name');
-                roomSecretsObjectStore4.createIndex('auto_accept', 'auto_accept');
-            }
-        }
-    }
-
-    static logBrowserNotCapable() {
-        console.log("This browser does not support IndexedDB. Paired devices will be gone after the browser is closed.");
-    }
-
-    static set(key, value) {
-        return new Promise((resolve, reject) => {
-            const DBOpenRequest = window.indexedDB.open('pairdrop_store');
-            DBOpenRequest.onsuccess = e => {
-                const db = e.target.result;
-                const transaction = db.transaction('keyval', 'readwrite');
-                const objectStore = transaction.objectStore('keyval');
-                const objectStoreRequest = objectStore.put(value, key);
-                objectStoreRequest.onsuccess = _ => {
-                    console.log(`Request successful. Added key-pair: ${key} - ${value}`);
-                    resolve(value);
-                };
-            }
-            DBOpenRequest.onerror = e => {
-                reject(e);
-            }
-        })
-    }
-
-    static get(key) {
-        return new Promise((resolve, reject) => {
-            const DBOpenRequest = window.indexedDB.open('pairdrop_store');
-            DBOpenRequest.onsuccess = e => {
-                const db = e.target.result;
-                const transaction = db.transaction('keyval', 'readonly');
-                const objectStore = transaction.objectStore('keyval');
-                const objectStoreRequest = objectStore.get(key);
-                objectStoreRequest.onsuccess = _ => {
-                    console.log(`Request successful. Retrieved key-pair: ${key} - ${objectStoreRequest.result}`);
-                    resolve(objectStoreRequest.result);
-                }
-            }
-            DBOpenRequest.onerror = e => {
-                reject(e);
-            }
-        });
-    }
-
-    static delete(key) {
-        return new Promise((resolve, reject) => {
-            const DBOpenRequest = window.indexedDB.open('pairdrop_store');
-            DBOpenRequest.onsuccess = e => {
-                const db = e.target.result;
-                const transaction = db.transaction('keyval', 'readwrite');
-                const objectStore = transaction.objectStore('keyval');
-                const objectStoreRequest = objectStore.delete(key);
-                objectStoreRequest.onsuccess = _ => {
-                    console.log(`Request successful. Deleted key: ${key}`);
-                    resolve();
-                };
-            }
-            DBOpenRequest.onerror = e => {
-                reject(e);
-            }
-        })
-    }
-
-    static addRoomSecret(roomSecret, displayName, deviceName) {
-        return new Promise((resolve, reject) => {
-            const DBOpenRequest = window.indexedDB.open('pairdrop_store');
-            DBOpenRequest.onsuccess = e => {
-                const db = e.target.result;
-                const transaction = db.transaction('room_secrets', 'readwrite');
-                const objectStore = transaction.objectStore('room_secrets');
-                const objectStoreRequest = objectStore.add({
-                    'secret': roomSecret,
-                    'display_name': displayName,
-                    'device_name': deviceName,
-                    'auto_accept': false
-                });
-                objectStoreRequest.onsuccess = e => {
-                    console.log(`Request successful. RoomSecret added: ${e.target.result}`);
-                    resolve();
-                }
-            }
-            DBOpenRequest.onerror = e => {
-                reject(e);
-            }
-        })
-    }
-
-    static async getAllRoomSecrets() {
-        try {
-            const roomSecrets = await this.getAllRoomSecretEntries();
-            let secrets = [];
-            for (let i = 0; i < roomSecrets.length; i++) {
-                secrets.push(roomSecrets[i].secret);
-            }
-            console.log(`Request successful. Retrieved ${secrets.length} room_secrets`);
-            return(secrets);
-        } catch (e) {
-            this.logBrowserNotCapable();
-            return 0;
-        }
-    }
-
-    static getAllRoomSecretEntries() {
-        return new Promise((resolve, reject) => {
-            const DBOpenRequest = window.indexedDB.open('pairdrop_store');
-            DBOpenRequest.onsuccess = (e) => {
-                const db = e.target.result;
-                const transaction = db.transaction('room_secrets', 'readonly');
-                const objectStore = transaction.objectStore('room_secrets');
-                const objectStoreRequest = objectStore.getAll();
-                objectStoreRequest.onsuccess = e => {
-                    resolve(e.target.result);
-                }
-            }
-            DBOpenRequest.onerror = (e) => {
-                reject(e);
-            }
-        });
-    }
-
-    static getRoomSecretEntry(roomSecret) {
-        return new Promise((resolve, reject) => {
-            const DBOpenRequest = window.indexedDB.open('pairdrop_store');
-            DBOpenRequest.onsuccess = e => {
-                const db = e.target.result;
-                const transaction = db.transaction('room_secrets', 'readonly');
-                const objectStore = transaction.objectStore('room_secrets');
-                const objectStoreRequestKey = objectStore.index("secret").getKey(roomSecret);
-                objectStoreRequestKey.onsuccess = e => {
-                    const key = e.target.result;
-                    if (!key) {
-                        console.log(`Nothing to retrieve. Entry for room_secret not existing: ${roomSecret}`);
-                        resolve();
-                        return;
-                    }
-                    const objectStoreRequestRetrieval = objectStore.get(key);
-                    objectStoreRequestRetrieval.onsuccess = e => {
-                        console.log(`Request successful. Retrieved entry for room_secret: ${key}`);
-                        resolve({
-                            "entry": e.target.result,
-                            "key": key
-                        });
-                    }
-                    objectStoreRequestRetrieval.onerror = (e) => {
-                        reject(e);
-                    }
-                };
-            }
-            DBOpenRequest.onerror = (e) => {
-                reject(e);
-            }
-        });
-    }
-
-    static deleteRoomSecret(roomSecret) {
-        return new Promise((resolve, reject) => {
-            const DBOpenRequest = window.indexedDB.open('pairdrop_store');
-            DBOpenRequest.onsuccess = (e) => {
-                const db = e.target.result;
-                const transaction = db.transaction('room_secrets', 'readwrite');
-                const objectStore = transaction.objectStore('room_secrets');
-                const objectStoreRequestKey = objectStore.index("secret").getKey(roomSecret);
-                objectStoreRequestKey.onsuccess = e => {
-                    if (!e.target.result) {
-                        console.log(`Nothing to delete. room_secret not existing: ${roomSecret}`);
-                        resolve();
-                        return;
-                    }
-                    const key = e.target.result;
-                    const objectStoreRequestDeletion = objectStore.delete(key);
-                    objectStoreRequestDeletion.onsuccess = _ => {
-                        console.log(`Request successful. Deleted room_secret: ${key}`);
-                        resolve(roomSecret);
-                    }
-                    objectStoreRequestDeletion.onerror = e => {
-                        reject(e);
-                    }
-                };
-            }
-            DBOpenRequest.onerror = e => {
-                reject(e);
-            }
-        })
-    }
-
-    static clearRoomSecrets() {
-        return new Promise((resolve, reject) => {
-            const DBOpenRequest = window.indexedDB.open('pairdrop_store');
-            DBOpenRequest.onsuccess = (e) => {
-                const db = e.target.result;
-                const transaction = db.transaction('room_secrets', 'readwrite');
-                const objectStore = transaction.objectStore('room_secrets');
-                const objectStoreRequest = objectStore.clear();
-                objectStoreRequest.onsuccess = _ => {
-                    console.log('Request successful. All room_secrets cleared');
-                    resolve();
-                };
-            }
-            DBOpenRequest.onerror = e => {
-                reject(e);
-            }
-        })
-    }
-
-    static updateRoomSecretNames(roomSecret, displayName, deviceName) {
-        return this.updateRoomSecret(roomSecret, undefined, displayName, deviceName);
-    }
-
-    static updateRoomSecretAutoAccept(roomSecret, autoAccept) {
-        return this.updateRoomSecret(roomSecret, undefined, undefined, undefined, autoAccept);
-    }
-
-    static updateRoomSecret(roomSecret, updatedRoomSecret = undefined, updatedDisplayName = undefined, updatedDeviceName = undefined, updatedAutoAccept = undefined) {
-        return new Promise((resolve, reject) => {
-            const DBOpenRequest = window.indexedDB.open('pairdrop_store');
-            DBOpenRequest.onsuccess = e => {
-                const db = e.target.result;
-                this.getRoomSecretEntry(roomSecret)
-                    .then(roomSecretEntry => {
-                        if (!roomSecretEntry) {
-                           resolve(false);
-                           return;
-                        }
-                        const transaction = db.transaction('room_secrets', 'readwrite');
-                        const objectStore = transaction.objectStore('room_secrets');
-                        // Do not use `updatedRoomSecret ?? roomSecretEntry.entry.secret` to ensure compatibility with older browsers
-                        const updatedRoomSecretEntry = {
-                            'secret': updatedRoomSecret !== undefined ? updatedRoomSecret : roomSecretEntry.entry.secret,
-                            'display_name': updatedDisplayName !== undefined ? updatedDisplayName : roomSecretEntry.entry.display_name,
-                            'device_name': updatedDeviceName !== undefined ? updatedDeviceName : roomSecretEntry.entry.device_name,
-                            'auto_accept': updatedAutoAccept !== undefined ? updatedAutoAccept : roomSecretEntry.entry.auto_accept
-                        };
-
-                        const objectStoreRequestUpdate = objectStore.put(updatedRoomSecretEntry, roomSecretEntry.key);
-
-                        objectStoreRequestUpdate.onsuccess = e => {
-                            console.log(`Request successful. Updated room_secret: ${roomSecretEntry.key}`);
-                            resolve({
-                                "entry": updatedRoomSecretEntry,
-                                "key": roomSecretEntry.key
-                            });
-                        }
-
-                        objectStoreRequestUpdate.onerror = (e) => {
-                            reject(e);
-                        }
-                    })
-                    .catch(e => reject(e));
-            };
-
-            DBOpenRequest.onerror = e => reject(e);
-        })
-    }
-}
-
 class BrowserTabsConnector {
     constructor() {
         this.bc = new BroadcastChannel('pairdrop');
@@ -2834,115 +2386,4 @@ class BrowserTabsConnector {
         localStorage.setItem("peer_ids_browser", JSON.stringify(peerIdsBrowser));
         return peerIdsBrowser;
     }
-}
-
-class BackgroundCanvas {
-    constructor() {
-        this.c = $$('canvas');
-        this.cCtx = this.c.getContext('2d');
-        this.$footer = $$('footer');
-
-        Events.on('bg-resize', _ => this.init());
-        Events.on('redraw-canvas', _ => this.init());
-        Events.on('translation-loaded', _ => this.init());
-
-        //fade-in on load
-        Events.on('ui-faded-in', _ => this._fadeIn());
-
-        window.onresize = _ => Events.fire('bg-resize');
-    }
-
-    _fadeIn() {
-        this.c.classList.remove('opacity-0');
-    }
-
-    init() {
-        let oldW = this.w;
-        let oldH = this.h;
-        let oldOffset = this.offset
-        this.w = document.documentElement.clientWidth;
-        this.h = document.documentElement.clientHeight;
-        this.offset = this.$footer.offsetHeight - 27;
-        if (this.h >= 800) this.offset += 10;
-
-        if (oldW === this.w && oldH === this.h && oldOffset === this.offset) return; // nothing has changed
-
-        this.c.width = this.w;
-        this.c.height = this.h;
-        this.x0 = this.w / 2;
-        this.y0 = this.h - this.offset;
-        this.dw = Math.round(Math.max(this.w, this.h, 1000) / 13);
-
-        this.drawCircles(this.cCtx);
-    }
-
-
-    drawCircle(ctx, radius) {
-        ctx.beginPath();
-        ctx.lineWidth = 2;
-        let opacity = Math.max(0, 0.3 * (1 - 1 * radius / Math.max(this.w, this.h)));
-        ctx.strokeStyle = `rgba(128, 128, 128, ${opacity})`;
-        ctx.arc(this.x0, this.y0, radius, 0, 2 * Math.PI);
-        ctx.stroke();
-    }
-
-    drawCircles(ctx) {
-        ctx.clearRect(0, 0, this.w, this.h);
-        for (let i = 0; i < 13; i++) {
-            this.drawCircle(ctx, this.dw * i + 33 + 66);
-        }
-    }
-}
-
-class PairDrop {
-    constructor() {
-        Events.on('initial-translation-loaded', _ => {
-            const peersUI = new PeersUI();
-            const backgroundCanvas = new BackgroundCanvas();
-            const languageSelectDialog = new LanguageSelectDialog();
-            const receiveFileDialog = new ReceiveFileDialog();
-            const receiveRequestDialog = new ReceiveRequestDialog();
-            const sendTextDialog = new SendTextDialog();
-            const receiveTextDialog = new ReceiveTextDialog();
-            const pairDeviceDialog = new PairDeviceDialog();
-            const clearDevicesDialog = new EditPairedDevicesDialog();
-            const publicRoomDialog = new PublicRoomDialog();
-            const base64ZipDialog = new Base64ZipDialog();
-            const toast = new Toast();
-            const notifications = new Notifications();
-            const networkStatusUI = new NetworkStatusUI();
-            const webShareTargetUI = new WebShareTargetUI();
-            const webFileHandlersUI = new WebFileHandlersUI();
-            const noSleepUI = new NoSleepUI();
-            const broadCast = new BrowserTabsConnector();
-            const server = new ServerConnection();
-            const peers = new PeersManager(server);
-        });
-    }
-}
-
-const persistentStorage = new PersistentStorage();
-const pairDrop = new PairDrop();
-const localization = new Localization();
-
-if ('serviceWorker' in navigator) {
-    navigator.serviceWorker
-        .register('/service-worker.js')
-        .then(serviceWorker => {
-            console.log('Service Worker registered');
-            window.serviceWorker = serviceWorker
-        });
-}
-
-window.addEventListener('beforeinstallprompt', installEvent => {
-    if (!window.matchMedia('(display-mode: minimal-ui)').matches) {
-        // only display install btn when not installed
-        const installBtn = document.querySelector('#install')
-        installBtn.removeAttribute('hidden');
-        installBtn.addEventListener('click', () => {
-            installBtn.setAttribute('hidden', true);
-            installEvent.prompt();
-        });
-    }
-    return installEvent.preventDefault();
-});
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/public/scripts/util-main.js b/public/scripts/util-main.js
new file mode 100644
index 0000000..9143962
--- /dev/null
+++ b/public/scripts/util-main.js
@@ -0,0 +1,17 @@
+// Selector shortcuts
+const $ = query => document.getElementById(query);
+const $$ = query => document.querySelector(query);
+
+class Events {
+    static fire(type, detail = {}) {
+        window.dispatchEvent(new CustomEvent(type, { detail: detail }));
+    }
+
+    static on(type, callback, options) {
+        return window.addEventListener(type, callback, options);
+    }
+
+    static off(type, callback, options) {
+        return window.removeEventListener(type, callback, options);
+    }
+}
\ No newline at end of file
diff --git a/public/scripts/util.js b/public/scripts/util.js
index 9ccab8f..6dba206 100644
--- a/public/scripts/util.js
+++ b/public/scripts/util.js
@@ -60,9 +60,6 @@ window.iOS = /iPad|iPhone|iPod/.test(navigator.userAgent) && !window.MSStream;
 window.android = /android/i.test(navigator.userAgent);
 window.isMobile = window.iOS || window.android;
 
-// Selector shortcuts
-const $ = query => document.getElementById(query);
-const $$ = query => document.querySelector(query);
 
 // Helper functions
 const zipper = (() => {
diff --git a/public/service-worker.js b/public/service-worker.js
index f87e879..16e1e94 100644
--- a/public/service-worker.js
+++ b/public/service-worker.js
@@ -5,16 +5,21 @@ const relativePathsToCache = [
     './',
     'index.html',
     'manifest.json',
-    'styles.css',
+    'styles/main-styles.css',
+    'styles/deferred-styles.css',
     'scripts/localization.js',
+    'scripts/main.js',
     'scripts/network.js',
-    'scripts/NoSleep.min.js',
-    'scripts/QRCode.min.js',
+    'scripts/no-sleep.min.js',
+    'scripts/persistent-storage.js',
+    'scripts/qr-code.min.js',
     'scripts/theme.js',
     'scripts/ui.js',
     'scripts/util.js',
+    'scripts/util-main.js',
     'scripts/zip.min.js',
     'sounds/blop.mp3',
+    'sounds/blop.ogg',
     'images/favicon-96x96.png',
     'images/favicon-96x96-notification.png',
     'images/android-chrome-192x192.png',
@@ -32,6 +37,7 @@ const relativePathsToCache = [
     'lang/ja.json',
     'lang/nb.json',
     'lang/nl.json',
+    'lang/tr.json',
     'lang/ro.json',
     'lang/ru.json',
     'lang/zh-CN.json'
diff --git a/public/styles/deferred-styles.css b/public/styles/deferred-styles.css
new file mode 100644
index 0000000..8fe43eb
--- /dev/null
+++ b/public/styles/deferred-styles.css
@@ -0,0 +1,727 @@
+/* All styles in this sheet are not needed on page load and deferred */
+
+/* Peers */
+
+x-peers.overflowing {
+    background: /* Shadow covers */ linear-gradient(rgb(var(--bg-color)) 30%, rgba(var(--bg-color), 0)),
+    linear-gradient(rgba(var(--bg-color), 0), rgb(var(--bg-color)) 70%) 0 100%,
+        /* Shadows */ radial-gradient(farthest-side at 50% 0, rgba(var(--text-color), .2), rgba(var(--text-color), 0)),
+    radial-gradient(farthest-side at 50% 100%, rgba(var(--text-color), .2), rgba(var(--text-color), 0)) 0 100%;
+
+    background-repeat: no-repeat;
+    background-size: 100% 40px, 100% 40px, 100% 14px, 100% 14px;
+
+    /* Opera doesn't support this in the shorthand */
+    background-attachment: local, local, scroll, scroll;
+}
+
+x-peers:has(> x-peer) {
+    --peers-per-row: 10;
+}
+
+/* peers-per-row if height is too small for 2 rows */
+@media screen and (min-height: 538px) and (max-height: 683px) and (max-width: 402px),
+screen and (min-height: 517px) and (max-height: 664px) and (min-width: 426px) {
+    x-peers:has(> x-peer) {
+        --peers-per-row: 3;
+    }
+
+    x-peers:has(> x-peer:nth-of-type(7)) {
+        --peers-per-row: 4;
+    }
+
+    x-peers:has(> x-peer:nth-of-type(10)) {
+        --peers-per-row: 5;
+    }
+
+    x-peers:has(> x-peer:nth-of-type(13)) {
+        --peers-per-row: 6;
+    }
+
+    x-peers:has(> x-peer:nth-of-type(16)) {
+        --peers-per-row: 7;
+    }
+
+    x-peers:has(> x-peer:nth-of-type(19)) {
+        --peers-per-row: 8;
+    }
+
+    x-peers:has(> x-peer:nth-of-type(22)) {
+        --peers-per-row: 9;
+    }
+
+    x-peers:has(> x-peer:nth-of-type(25)) {
+        --peers-per-row: 10;
+    }
+}
+
+/* peers-per-row if height is too small for 3 rows */
+@media screen and (min-height: 683px) and (max-width: 402px),
+screen and (min-height: 664px) and (min-width: 426px) {
+    x-peers:has(> x-peer) {
+        --peers-per-row: 3;
+    }
+
+    x-peers:has(> x-peer:nth-of-type(10)) {
+        --peers-per-row: 4;
+    }
+
+    x-peers:has(> x-peer:nth-of-type(13)) {
+        --peers-per-row: 5;
+    }
+
+    x-peers:has(> x-peer:nth-of-type(16)) {
+        --peers-per-row: 6;
+    }
+
+    x-peers:has(> x-peer:nth-of-type(19)) {
+        --peers-per-row: 7;
+    }
+
+    x-peers:has(> x-peer:nth-of-type(22)) {
+        --peers-per-row: 8;
+    }
+
+    x-peers:has(> x-peer:nth-of-type(25)) {
+        --peers-per-row: 9;
+    }
+
+    x-peers:has(> x-peer:nth-of-type(28)) {
+        --peers-per-row: 10;
+    }
+}
+
+/* Peer */
+
+x-peer {
+    padding: 8px;
+    align-content: start;
+    flex-wrap: wrap;
+}
+
+x-peer label {
+    width: var(--peer-width);
+    touch-action: manipulation;
+    -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
+    position: relative;
+}
+
+x-peer x-icon {
+    --icon-size: 40px;
+    margin-bottom: 4px;
+    transition: transform 150ms;
+    will-change: transform;
+    display: flex;
+    flex-direction: column;
+}
+
+x-peer .icon-wrapper {
+    width: var(--icon-size);
+    padding: 12px;
+    border-radius: 50%;
+    background: var(--primary-color);
+    color: white;
+    display: flex;
+}
+
+x-peer.type-secret .icon-wrapper {
+    background: var(--paired-device-color);
+}
+
+x-peer:not(.type-ip):not(.type-secret).type-public-id .icon-wrapper {
+    background: var(--public-room-color);
+}
+
+x-peer x-icon > .highlight-wrapper {
+    align-self: center;
+    align-items: center;
+    margin: 7px auto 0;
+    height: 6px;
+}
+
+x-peer x-icon > .highlight-wrapper > .highlight {
+    width: 15px;
+    height: 6px;
+    border-radius: 4px;
+    margin-left: 1px;
+    margin-right: 1px;
+    display: none;
+}
+
+x-peer.type-ip x-icon > .highlight-wrapper > .highlight.highlight-room-ip {
+    background-color: var(--primary-color);
+    display: inline;
+}
+
+x-peer.type-secret x-icon > .highlight-wrapper > .highlight.highlight-room-secret {
+    background-color: var(--paired-device-color);
+    display: inline;
+}
+
+x-peer.type-public-id x-icon > .highlight-wrapper > .highlight.highlight-room-public-id {
+    background-color: var(--public-room-color);
+    display: inline;
+}
+
+x-peer:not([status]):hover x-icon,
+x-peer:not([status]):focus x-icon {
+    transform: scale(1.05);
+}
+
+x-peer[status] x-icon {
+    box-shadow: none;
+    opacity: 0.8;
+    transform: scale(1);
+}
+
+
+x-peer.ws-peer {
+    margin-top: -1.5px;
+}
+
+x-peer.ws-peer .progress {
+    margin-top: 3px;
+}
+
+x-peer.ws-peer .icon-wrapper{
+    border: solid 3px var(--ws-peer-color);
+}
+
+x-peer.ws-peer .highlight-wrapper {
+    margin-top: 3px;
+}
+
+#websocket-fallback {
+    opacity: 0.5;
+}
+
+#websocket-fallback > span:nth-of-type(2) {
+    border-bottom: solid 2px var(--ws-peer-color);
+}
+
+.device-descriptor {
+    width: 100%;
+    text-align: center;
+}
+
+.device-descriptor > div {
+    width: 100%;
+    white-space: nowrap;
+    overflow: hidden;
+    text-overflow: ellipsis;
+    text-align: center;
+}
+
+.status,
+.device-name,
+.connection-hash {
+    opacity: 0.7;
+}
+
+.device-name {
+    font-size: 14px;
+    white-space: nowrap;
+}
+
+.connection-hash {
+    font-size: 12px;
+    white-space: nowrap;
+}
+
+x-peer:not([status]) .status,
+x-peer[status] .device-name {
+    display: none;
+}
+
+x-peer[status] {
+    pointer-events: none;
+}
+
+x-peer x-icon {
+    animation: pop 600ms ease-out 1;
+}
+
+@keyframes pop {
+    0% {
+        transform: scale(0.7);
+    }
+
+    40% {
+        transform: scale(1.2);
+    }
+}
+
+x-peer[drop] x-icon {
+    transform: scale(1.1);
+}
+
+
+ Dialog
+
+x-dialog x-background {
+    background: rgba(0, 0, 0, 0.61);
+    z-index: 10;
+    transition: opacity 300ms;
+    will-change: opacity;
+    padding: 15px;
+    overflow: overlay;
+}
+
+x-dialog x-paper {
+    display: flex;
+    flex-direction: column;
+    width: calc(100vw - 10px);
+    z-index: 3;
+    background: white;
+    border-radius: 8px;
+    max-width: 400px;
+    overflow: hidden;
+    box-sizing: border-box;
+    transition: transform 300ms;
+    will-change: transform;
+}
+
+#pair-device-dialog x-paper,
+#edit-paired-devices-dialog x-paper,
+#public-room-dialog x-paper,
+#language-select-dialog x-paper {
+    position: absolute;
+    top: max(50%, 350px);
+    margin-top: -328.5px;
+}
+
+x-paper > .row:first-of-type {
+    background-color: var(--accent-color);
+    border-bottom: solid 4px var(--border-color);
+    margin-bottom: 10px;
+}
+
+x-paper > .row:first-of-type h2 {
+    color: white;
+}
+
+#pair-device-dialog,
+#edit-paired-devices-dialog {
+    --accent-color: var(--paired-device-color);
+}
+
+#public-room-dialog {
+    --accent-color: var(--public-room-color);
+}
+
+#pair-device-dialog ::-moz-selection,
+#pair-device-dialog ::selection {
+    color: black;
+    background: var(--paired-device-color);
+}
+
+#public-room-dialog ::-moz-selection,
+#public-room-dialog ::selection {
+    color: black;
+    background: var(--public-room-color);
+}
+
+x-dialog:not([show]) {
+    pointer-events: none;
+}
+
+x-dialog:not([show]) x-paper {
+    transform: scale(0.1);
+}
+
+x-dialog a {
+    color: var(--primary-color);
+}
+
+/* Pair Devices Dialog & Public Room Dialog */
+
+.input-key-container {
+    width: 100%;
+    display: flex;
+    justify-content: center;
+    margin-top: 10px;
+}
+
+.input-key-container > input {
+    width: 45px;
+    height: 45px;
+    font-size: 30px;
+    padding: 0;
+    text-align: center;
+    text-transform: uppercase;
+    display: -webkit-box !important;
+    display: -webkit-flex !important;
+    display: -moz-flex !important;
+    display: -ms-flexbox !important;
+    display: flex !important;
+    -webkit-justify-content: center;
+    -ms-justify-content: center;
+    justify-content: center;
+}
+
+.input-key-container > input {
+    margin: 0 3px;
+}
+
+.input-key-container.six-chars > input:nth-of-type(4) {
+    margin-left: 5%;
+}
+
+.key {
+    -webkit-user-select: text;
+    -moz-user-select: text;
+    user-select: text;
+    display: inline-block;
+    font-size: 50px;
+    letter-spacing: min(calc((100vw - 80px - 99px) / 100 * 7), 20px);
+    text-indent: calc(0.5 * (11px + min(calc((100vw - 80px - 99px) / 100 * 6), 28px)));
+    margin: 25px 0;
+}
+
+.key-qr-code {
+    margin: 16px;
+    width: fit-content;
+    align-self: center;
+}
+
+.key-instructions {
+    flex-direction: column;
+}
+
+x-dialog h2 {
+    margin-top: 5px;
+    margin-bottom: 0;
+}
+
+x-dialog hr {
+    height: 3px;
+    border: none;
+    width: 100%;
+    background-color: var(--border-color);
+}
+
+.hr-note {
+    margin-top: 10px;
+    margin-bottom: 20px;
+}
+
+.hr-note hr {
+    margin-bottom: -2px;
+}
+
+.hr-note > div {
+    height: 0;
+    transform: translateY(-10px);
+}
+
+
+.hr-note > div > span {
+    padding: 3px 10px;
+    border-radius: 10px;
+    color: rgb(var(--text-color));
+    background-color: rgb(var(--bg-color));
+    border: var(--border-color) solid 3px;
+    text-transform: uppercase;
+}
+
+#pair-device-dialog x-background {
+    padding: 16px!important;
+}
+
+/* Edit Paired Devices Dialog */
+.paired-devices-wrapper:empty:before {
+    content: attr(data-empty);
+}
+
+.paired-devices-wrapper:empty {
+    padding: 10px;
+}
+
+.paired-devices-wrapper {
+    border-top: solid 4px var(--paired-device-color);
+    border-bottom: solid 4px var(--paired-device-color);
+    max-height: 65vh;
+    overflow: scroll;
+    background: /* Shadow covers */ linear-gradient(rgb(var(--bg-color)) 30%, rgba(var(--bg-color), 0)),
+    linear-gradient(rgba(var(--bg-color), 0), rgb(var(--bg-color)) 70%) 0 100%,
+        /* Shadows */ radial-gradient(farthest-side at 50% 0, rgba(var(--text-color), .3), rgba(var(--text-color), 0)),
+    radial-gradient(farthest-side at 50% 100%, rgba(var(--text-color), .3), rgba(var(--text-color), 0)) 0 100%;
+
+    background-repeat: no-repeat;
+    background-size: 100% 80px, 100% 80px, 100% 24px, 100% 24px;
+
+    /* Opera doesn't support this in the shorthand */
+    background-attachment: local, local, scroll, scroll;
+}
+
+.paired-device {
+    display: flex;
+    justify-content: space-between;
+    flex-direction: column;
+    align-items: center;
+}
+
+.paired-device:not(:last-child) {
+    border-bottom: solid 4px var(--paired-device-color);
+}
+
+.paired-device > .display-name,
+.paired-device > .device-name {
+    width: 100%;
+    height: 36px;
+    display: flex;
+    align-items: center;
+    text-align: center;
+    align-self: center;
+    border-bottom: solid 2px rgba(128, 128, 128, 0.5);
+    opacity: 1;
+}
+.paired-device span {
+    width: 100%;
+}
+
+.paired-device > .button-wrapper {
+    display: flex;
+    height: 36px;
+    justify-content: space-between;
+    flex-direction: row;
+    align-items: center;
+    width: 100%;
+}
+
+.paired-device > .button-wrapper > label,
+.paired-device > .button-wrapper > button {
+    display: flex;
+    align-items: center;
+    text-align: center;
+    white-space: nowrap;
+    justify-content: center;
+    width: 50%;
+    padding-left: 6px;
+    padding-right: 6px;
+    height: 36px;
+}
+
+.paired-device > .button-wrapper > :not(:last-child) {
+    border-right: solid 1px rgba(128, 128, 128, 0.5);
+}
+
+.paired-device > .button-wrapper > :not(:first-child) {
+    border-left: solid 1px rgba(128, 128, 128, 0.5);
+}
+
+.paired-device * {
+    overflow: hidden;
+    text-overflow: ellipsis;
+}
+
+/* Receive Dialog */
+
+x-paper > .row {
+    padding: 10px;
+}
+
+/* button row*/
+x-paper > .button-row {
+    border-top: solid 3px var(--border-color);
+    height: 50px;
+    margin-top: 10px;
+}
+
+x-paper > .button-row > .button {
+    height: 100%;
+    width: 100%;
+}
+
+html:not([dir="rtl"]) x-paper > .button-row > .button:not(:first-child) {
+    border-right: solid 1.5px var(--border-color);
+}
+
+html:not([dir="rtl"]) x-paper > .button-row > .button:not(:last-child) {
+    border-left: solid 1.5px var(--border-color);
+}
+
+html[dir="rtl"] x-paper > .button-row > .button:not(:first-child) {
+    border-left: solid 1.5px var(--border-color);
+}
+
+html[dir="rtl"] x-paper > .button-row > .button:not(:last-child) {
+    border-right: solid 1.5px var(--border-color);
+}
+
+.language-buttons > button > span {
+    margin: 0 0.3em;
+}
+
+.file-description {
+    max-width: 100%;
+}
+
+.file-description span {
+    display: inline;
+    word-break: normal;
+}
+
+.file-name {
+    font-style: italic;
+    max-width: 100%;
+    margin-top: 5px;
+}
+
+.file-stem {
+    overflow: hidden;
+    text-overflow: ellipsis;
+    white-space: nowrap;
+    padding-right: 1px;
+}
+
+/* Send Text Dialog */
+x-dialog .dialog-subheader {
+    padding-top: 16px;
+    padding-bottom: 16px;
+}
+
+#send-text-dialog .display-name-wrapper {
+    padding-bottom: 0;
+}
+
+#text-input {
+    min-height: 200px;
+    width: 100%;
+}
+
+/* Receive Text Dialog */
+
+#receive-text-dialog #text {
+    width: 100%;
+    word-break: break-all;
+    max-height: calc(100vh - 393px);
+    overflow-x: hidden;
+    overflow-y: auto;
+    -webkit-user-select: text;
+    -moz-user-select: text;
+    user-select: text;
+    white-space: pre-wrap;
+}
+
+#receive-text-dialog #text a {
+    cursor: pointer;
+}
+
+#receive-text-dialog #text a:hover {
+    text-decoration: underline;
+}
+
+#receive-text-dialog h3 {
+    /* Select the received text when double-clicking the dialog */
+    user-select: none;
+    pointer-events: none;
+}
+
+.row-separator {
+    border-bottom: solid 2.5px var(--border-color);
+    margin: auto -24px;
+}
+
+#base64-paste-btn,
+#base64-paste-dialog .textarea {
+    width: 100%;
+    height: 40vh;
+    border: solid 12px #438cff;
+    border-radius: 8px;
+}
+
+#base64-paste-dialog .textarea {
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    text-align: center;
+}
+
+#base64-paste-dialog .textarea::before {
+    font-size: 15px;
+    letter-spacing: 0.12em;
+    color: var(--primary-color);
+    font-weight: 700;
+    text-transform: uppercase;
+    white-space: pre-wrap;
+}
+
+
+/* Peer loading Indicator */
+
+.progress {
+    width: 80px;
+    height: 80px;
+    position: absolute;
+    top: -8px;
+    clip: rect(0px, 80px, 80px, 40px);
+    --progress: rotate(0deg);
+    transition: transform 200ms;
+}
+
+.circle {
+    width: 72px;
+    height: 72px;
+    border: 4px solid var(--primary-color);
+    border-radius: 40px;
+    position: absolute;
+    clip: rect(0px, 40px, 80px, 0px);
+    will-change: transform;
+    transform: var(--progress);
+}
+
+.over50 {
+    clip: rect(auto, auto, auto, auto);
+}
+
+.over50 .circle.right {
+    transform: rotate(180deg);
+}
+
+
+/*
+    Color Themes
+*/
+
+/* Colored Elements */
+
+x-dialog x-paper {
+    background-color: rgb(var(--bg-color));
+}
+
+.textarea {
+    color: rgb(var(--text-color)) !important;
+    background-color: var(--bg-color-secondary) !important;
+}
+
+.textarea * {
+    margin: 0 !important;
+    padding: 0 !important;
+    color: unset !important;
+    background: unset !important;
+    border: unset !important;
+    opacity: unset !important;
+    font-family: inherit !important;
+    font-size: inherit !important;
+    font-style: unset !important;
+    font-weight: unset !important;
+}
+
+/* Image/Video/Audio Preview */
+.file-preview {
+    margin-bottom: 15px;
+}
+
+.file-preview:empty {
+    display: none;
+}
+
+.file-preview > img,
+.file-preview > audio,
+.file-preview > video {
+    max-width: 100%;
+    max-height: 40vh;
+    margin: auto;
+    display: block;
+}
\ No newline at end of file
diff --git a/public/styles.css b/public/styles/main-styles.css
similarity index 51%
rename from public/styles.css
rename to public/styles/main-styles.css
index 26ca6eb..ac28b04 100644
--- a/public/styles.css
+++ b/public/styles/main-styles.css
@@ -1,3 +1,5 @@
+/* All styles in this sheet are needed on page load */
+
 /* Constants */
 
 :root {
@@ -31,17 +33,10 @@ body {
 
 body {
     height: 100%;
-    /* mobile viewport bug fix */
-    min-height: -moz-available;          /* WebKit-based browsers will ignore this. */
-    min-height: -webkit-fill-available;  /* Mozilla-based browsers will ignore this. */
-    min-height: fill-available;
 }
 
 html {
     height: 100%;
-    min-height: -moz-available;          /* WebKit-based browsers will ignore this. */
-    min-height: -webkit-fill-available;  /* Mozilla-based browsers will ignore this. */
-    min-height: fill-available;
 }
 
 .fw {
@@ -293,128 +288,13 @@ x-noscript {
 }
 
 
-/* Peers List */
+/* Peers  */
 
 #x-peers-filler {
     display: flex;
     flex-grow: 1;
 }
 
-x-peers {
-    position: relative;
-    display: flex;
-    flex-flow: row wrap;
-    flex-grow: 1;
-    align-items: start !important;
-    justify-content: center;
-
-    z-index: 2;
-    transition: --bg-color 0.5s ease;
-    overflow-y: scroll;
-    overflow-x: hidden;
-    overscroll-behavior-x: none;
-    scrollbar-width: none;
-
-    --peers-per-row: 6; /* default if browser does not support :has selector */
-    --x-peers-width: min(100vw, calc(var(--peers-per-row) * (var(--peer-width) + 25px) - 16px));
-    width: var(--x-peers-width);
-    margin-right: 20px;
-    margin-left: 20px;
-}
-
-x-peers.overflowing {
-    background: /* Shadow covers */ linear-gradient(rgb(var(--bg-color)) 30%, rgba(var(--bg-color), 0)),
-    linear-gradient(rgba(var(--bg-color), 0), rgb(var(--bg-color)) 70%) 0 100%,
-        /* Shadows */ radial-gradient(farthest-side at 50% 0, rgba(var(--text-color), .2), rgba(var(--text-color), 0)),
-    radial-gradient(farthest-side at 50% 100%, rgba(var(--text-color), .2), rgba(var(--text-color), 0)) 0 100%;
-
-    background-repeat: no-repeat;
-    background-size: 100% 40px, 100% 40px, 100% 14px, 100% 14px;
-
-    /* Opera doesn't support this in the shorthand */
-    background-attachment: local, local, scroll, scroll;
-}
-
-x-peers:has(> x-peer) {
-    --peers-per-row: 10;
-}
-
-/* peers-per-row if height is too small for 2 rows */
-@media screen and (min-height: 538px) and (max-height: 683px) and (max-width: 402px),
-screen and (min-height: 517px) and (max-height: 664px) and (min-width: 426px) {
-    x-peers:has(> x-peer) {
-        --peers-per-row: 3;
-    }
-
-    x-peers:has(> x-peer:nth-of-type(7)) {
-        --peers-per-row: 4;
-    }
-
-    x-peers:has(> x-peer:nth-of-type(10)) {
-        --peers-per-row: 5;
-    }
-
-    x-peers:has(> x-peer:nth-of-type(13)) {
-        --peers-per-row: 6;
-    }
-
-    x-peers:has(> x-peer:nth-of-type(16)) {
-        --peers-per-row: 7;
-    }
-
-    x-peers:has(> x-peer:nth-of-type(19)) {
-        --peers-per-row: 8;
-    }
-
-    x-peers:has(> x-peer:nth-of-type(22)) {
-        --peers-per-row: 9;
-    }
-
-    x-peers:has(> x-peer:nth-of-type(25)) {
-        --peers-per-row: 10;
-    }
-}
-
-/* peers-per-row if height is too small for 3 rows */
-@media screen and (min-height: 683px) and (max-width: 402px),
-screen and (min-height: 664px) and (min-width: 426px) {
-    x-peers:has(> x-peer) {
-        --peers-per-row: 3;
-    }
-
-    x-peers:has(> x-peer:nth-of-type(10)) {
-        --peers-per-row: 4;
-    }
-
-    x-peers:has(> x-peer:nth-of-type(13)) {
-        --peers-per-row: 5;
-    }
-
-    x-peers:has(> x-peer:nth-of-type(16)) {
-        --peers-per-row: 6;
-    }
-
-    x-peers:has(> x-peer:nth-of-type(19)) {
-        --peers-per-row: 7;
-    }
-
-    x-peers:has(> x-peer:nth-of-type(22)) {
-        --peers-per-row: 8;
-    }
-
-    x-peers:has(> x-peer:nth-of-type(25)) {
-        --peers-per-row: 9;
-    }
-
-    x-peers:has(> x-peer:nth-of-type(28)) {
-        --peers-per-row: 10;
-    }
-}
-
-::-webkit-scrollbar {
-    display: none;
-}
-
 /* Empty Peers List */
 
 x-no-peers {
@@ -452,178 +332,33 @@ x-no-peers[drop-bg] * {
 }
 
 
-
-/* Peer */
-
-x-peer {
-    padding: 8px;
-    align-content: start;
-    flex-wrap: wrap;
-}
-
-x-peer label {
-    width: var(--peer-width);
-    touch-action: manipulation;
-    -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
-    position: relative;
-}
-
 input[type="file"] {
     visibility: hidden;
     position: absolute;
 }
 
-x-peer x-icon {
-    --icon-size: 40px;
-    margin-bottom: 4px;
-    transition: transform 150ms;
-    will-change: transform;
+x-peers {
+    position: relative;
     display: flex;
-    flex-direction: column;
+    flex-flow: row wrap;
+    flex-grow: 1;
+    align-items: start !important;
+    justify-content: center;
+
+    z-index: 2;
+    transition: --bg-color 0.5s ease;
+    overflow-y: scroll;
+    overflow-x: hidden;
+    overscroll-behavior-x: none;
+    scrollbar-width: none;
+
+    --peers-per-row: 6; /* default if browser does not support :has selector */
+    --x-peers-width: min(100vw, calc(var(--peers-per-row) * (var(--peer-width) + 25px) - 16px));
+    width: var(--x-peers-width);
+    margin-right: 20px;
+    margin-left: 20px;
 }
 
-x-peer .icon-wrapper {
-    width: var(--icon-size);
-    padding: 12px;
-    border-radius: 50%;
-    background: var(--primary-color);
-    color: white;
-    display: flex;
-}
-
-x-peer.type-secret .icon-wrapper {
-    background: var(--paired-device-color);
-}
-
-x-peer:not(.type-ip):not(.type-secret).type-public-id .icon-wrapper {
-    background: var(--public-room-color);
-}
-
-x-peer x-icon > .highlight-wrapper {
-    align-self: center;
-    align-items: center;
-    margin: 7px auto 0;
-    height: 6px;
-}
-
-x-peer x-icon > .highlight-wrapper > .highlight {
-    width: 15px;
-    height: 6px;
-    border-radius: 4px;
-    margin-left: 1px;
-    margin-right: 1px;
-    display: none;
-}
-
-x-peer.type-ip x-icon > .highlight-wrapper > .highlight.highlight-room-ip {
-    background-color: var(--primary-color);
-    display: inline;
-}
-
-x-peer.type-secret x-icon > .highlight-wrapper > .highlight.highlight-room-secret {
-    background-color: var(--paired-device-color);
-    display: inline;
-}
-
-x-peer.type-public-id x-icon > .highlight-wrapper > .highlight.highlight-room-public-id {
-    background-color: var(--public-room-color);
-    display: inline;
-}
-
-x-peer:not([status]):hover x-icon,
-x-peer:not([status]):focus x-icon {
-    transform: scale(1.05);
-}
-
-x-peer[status] x-icon {
-    box-shadow: none;
-    opacity: 0.8;
-    transform: scale(1);
-}
-
-
-x-peer.ws-peer {
-    margin-top: -1.5px;
-}
-
-x-peer.ws-peer .progress {
-    margin-top: 3px;
-}
-
-x-peer.ws-peer .icon-wrapper{
-    border: solid 3px var(--ws-peer-color);
-}
-
-x-peer.ws-peer .highlight-wrapper {
-    margin-top: 3px;
-}
-
-#websocket-fallback {
-    opacity: 0.5;
-}
-
-#websocket-fallback > span:nth-of-type(2) {
-    border-bottom: solid 2px var(--ws-peer-color);
-}
-
-.device-descriptor {
-    width: 100%;
-    text-align: center;
-}
-
-.device-descriptor > div {
-    width: 100%;
-    white-space: nowrap;
-    overflow: hidden;
-    text-overflow: ellipsis;
-    text-align: center;
-}
-
-.status,
-.device-name,
-.connection-hash {
-    opacity: 0.7;
-}
-
-.device-name {
-    font-size: 14px;
-    white-space: nowrap;
-}
-
-.connection-hash {
-    font-size: 12px;
-    white-space: nowrap;
-}
-
-x-peer:not([status]) .status,
-x-peer[status] .device-name {
-    display: none;
-}
-
-x-peer[status] {
-    pointer-events: none;
-}
-
-x-peer x-icon {
-    animation: pop 600ms ease-out 1;
-}
-
-@keyframes pop {
-    0% {
-        transform: scale(0.7);
-    }
-
-    40% {
-        transform: scale(1.2);
-    }
-}
-
-x-peer[drop] x-icon {
-    transform: scale(1.1);
-}
-
-
-
 /* Footer */
 
 footer {
@@ -730,403 +465,12 @@ html[dir="rtl"] #edit-pen {
     transform: rotateY(180deg);
 }
 
-/* Dialog */
-
-x-dialog x-background {
-    background: rgba(0, 0, 0, 0.61);
-    z-index: 10;
-    transition: opacity 300ms;
-    will-change: opacity;
-    padding: 15px;
-    overflow: overlay;
-}
-
-x-dialog x-paper {
-    display: flex;
-    flex-direction: column;
-    width: calc(100vw - 10px);
-    z-index: 3;
-    background: white;
-    border-radius: 8px;
-    max-width: 400px;
-    overflow: hidden;
-    box-sizing: border-box;
-    transition: transform 300ms;
-    will-change: transform;
-}
-
-#pair-device-dialog x-paper,
-#edit-paired-devices-dialog x-paper,
-#public-room-dialog x-paper,
-#language-select-dialog x-paper {
-    position: absolute;
-    top: max(50%, 350px);
-    margin-top: -328.5px;
-}
-
-x-paper > .row:first-of-type {
-    background-color: var(--accent-color);
-    border-bottom: solid 4px var(--border-color);
-    margin-bottom: 10px;
-}
-
-x-paper > .row:first-of-type h2 {
-    color: white;
-}
-
-#pair-device-dialog,
-#edit-paired-devices-dialog {
-    --accent-color: var(--paired-device-color);
-}
-
-#public-room-dialog {
-    --accent-color: var(--public-room-color);
-}
-
-#pair-device-dialog ::-moz-selection,
-#pair-device-dialog ::selection {
-    color: black;
-    background: var(--paired-device-color);
-}
-
-#public-room-dialog ::-moz-selection,
-#public-room-dialog ::selection {
-    color: black;
-    background: var(--public-room-color);
-}
-
-x-dialog:not([show]) {
-    pointer-events: none;
-}
-
-x-dialog:not([show]) x-paper {
-    transform: scale(0.1);
-}
-
+/* Dialogs needed on page load */
 x-dialog:not([show]) x-background {
     opacity: 0;
 }
 
 
-x-dialog a {
-    color: var(--primary-color);
-}
-
-/* Pair Devices Dialog & Public Room Dialog */
-
-.input-key-container {
-    width: 100%;
-    display: flex;
-    justify-content: center;
-    margin-top: 10px;
-}
-
-.input-key-container > input {
-    width: 45px;
-    height: 45px;
-    font-size: 30px;
-    padding: 0;
-    text-align: center;
-    text-transform: uppercase;
-    display: -webkit-box !important;
-    display: -webkit-flex !important;
-    display: -moz-flex !important;
-    display: -ms-flexbox !important;
-    display: flex !important;
-    -webkit-justify-content: center;
-    -ms-justify-content: center;
-    justify-content: center;
-}
-
-.input-key-container > input {
-    margin: 0 3px;
-}
-
-.input-key-container.six-chars > input:nth-of-type(4) {
-    margin-left: 5%;
-}
-
-.key {
-    -webkit-user-select: text;
-    -moz-user-select: text;
-    user-select: text;
-    display: inline-block;
-    font-size: 50px;
-    letter-spacing: min(calc((100vw - 80px - 99px) / 100 * 7), 20px);
-    text-indent: calc(0.5 * (11px + min(calc((100vw - 80px - 99px) / 100 * 6), 28px)));
-    margin: 25px 0;
-}
-
-.key-qr-code {
-    margin: 16px;
-    width: fit-content;
-    align-self: center;
-}
-
-.key-instructions {
-    flex-direction: column;
-}
-
-x-dialog h2 {
-    margin-top: 5px;
-    margin-bottom: 0;
-}
-
-x-dialog hr {
-    height: 3px;
-    border: none;
-    width: 100%;
-    background-color: var(--border-color);
-}
-
-.hr-note {
-    margin-top: 10px;
-    margin-bottom: 20px;
-}
-
-.hr-note hr {
-    margin-bottom: -2px;
-}
-
-.hr-note > div {
-    height: 0;
-    transform: translateY(-10px);
-}
-
-
-.hr-note > div > span {
-    padding: 3px 10px;
-    border-radius: 10px;
-    color: rgb(var(--text-color));
-    background-color: rgb(var(--bg-color));
-    border: var(--border-color) solid 3px;
-    text-transform: uppercase;
-}
-
-#pair-device-dialog x-background {
-    padding: 16px!important;
-}
-
-/* Edit Paired Devices Dialog */
-.paired-devices-wrapper:empty:before {
-    content: attr(data-empty);
-}
-
-.paired-devices-wrapper:empty {
-    padding: 10px;
-}
-
-.paired-devices-wrapper {
-    border-top: solid 4px var(--paired-device-color);
-    border-bottom: solid 4px var(--paired-device-color);
-    max-height: 65vh;
-    overflow: scroll;
-    background: /* Shadow covers */ linear-gradient(rgb(var(--bg-color)) 30%, rgba(var(--bg-color), 0)),
-    linear-gradient(rgba(var(--bg-color), 0), rgb(var(--bg-color)) 70%) 0 100%,
-        /* Shadows */ radial-gradient(farthest-side at 50% 0, rgba(var(--text-color), .3), rgba(var(--text-color), 0)),
-    radial-gradient(farthest-side at 50% 100%, rgba(var(--text-color), .3), rgba(var(--text-color), 0)) 0 100%;
-
-    background-repeat: no-repeat;
-    background-size: 100% 80px, 100% 80px, 100% 24px, 100% 24px;
-
-    /* Opera doesn't support this in the shorthand */
-    background-attachment: local, local, scroll, scroll;
-}
-
-.paired-device {
-    display: flex;
-    justify-content: space-between;
-    flex-direction: column;
-    align-items: center;
-}
-
-.paired-device:not(:last-child) {
-    border-bottom: solid 4px var(--paired-device-color);
-}
-
-.paired-device > .display-name,
-.paired-device > .device-name {
-    width: 100%;
-    height: 36px;
-    display: flex;
-    align-items: center;
-    text-align: center;
-    align-self: center;
-    border-bottom: solid 2px rgba(128, 128, 128, 0.5);
-    opacity: 1;
-}
-.paired-device span {
-    width: 100%;
-}
-
-.paired-device > .button-wrapper {
-    display: flex;
-    height: 36px;
-    justify-content: space-between;
-    flex-direction: row;
-    align-items: center;
-    width: 100%;
-}
-
-.paired-device > .button-wrapper > label,
-.paired-device > .button-wrapper > button {
-    display: flex;
-    align-items: center;
-    text-align: center;
-    white-space: nowrap;
-    justify-content: center;
-    width: 50%;
-    padding-left: 6px;
-    padding-right: 6px;
-    height: 36px;
-}
-
-.paired-device > .button-wrapper > :not(:last-child) {
-    border-right: solid 1px rgba(128, 128, 128, 0.5);
-}
-
-.paired-device > .button-wrapper > :not(:first-child) {
-    border-left: solid 1px rgba(128, 128, 128, 0.5);
-}
-
-.paired-device * {
-    overflow: hidden;
-    text-overflow: ellipsis;
-}
-
-/* Receive Dialog */
-
-x-paper > .row {
-    padding: 10px;
-}
-
-/* button row*/
-x-paper > .button-row {
-    border-top: solid 3px var(--border-color);
-    height: 50px;
-    margin-top: 10px;
-}
-
-x-paper > .button-row > .button {
-    height: 100%;
-    width: 100%;
-}
-
-html:not([dir="rtl"]) x-paper > .button-row > .button:not(:first-child) {
-    border-right: solid 1.5px var(--border-color);
-}
-
-html:not([dir="rtl"]) x-paper > .button-row > .button:not(:last-child) {
-    border-left: solid 1.5px var(--border-color);
-}
-
-html[dir="rtl"] x-paper > .button-row > .button:not(:first-child) {
-    border-left: solid 1.5px var(--border-color);
-}
-
-html[dir="rtl"] x-paper > .button-row > .button:not(:last-child) {
-    border-right: solid 1.5px var(--border-color);
-}
-
-.language-buttons > button > span {
-    margin: 0 0.3em;
-}
-
-.file-description {
-    max-width: 100%;
-}
-
-.file-description span {
-    display: inline;
-    word-break: normal;
-}
-
-.file-name {
-    font-style: italic;
-    max-width: 100%;
-    margin-top: 5px;
-}
-
-.file-stem {
-    overflow: hidden;
-    text-overflow: ellipsis;
-    white-space: nowrap;
-    padding-right: 1px;
-}
-
-/* Send Text Dialog */
-x-dialog .dialog-subheader {
-    padding-top: 16px;
-    padding-bottom: 16px;
-}
-
-#send-text-dialog .display-name-wrapper {
-    padding-bottom: 0;
-}
-
-#text-input {
-    min-height: 200px;
-    width: 100%;
-}
-
-/* Receive Text Dialog */
-
-#receive-text-dialog #text {
-    width: 100%;
-    word-break: break-all;
-    max-height: calc(100vh - 393px);
-    overflow-x: hidden;
-    overflow-y: auto;
-    -webkit-user-select: text;
-    -moz-user-select: text;
-    user-select: text;
-    white-space: pre-wrap;
-}
-
-#receive-text-dialog #text a {
-    cursor: pointer;
-}
-
-#receive-text-dialog #text a:hover {
-    text-decoration: underline;
-}
-
-#receive-text-dialog h3 {
-    /* Select the received text when double-clicking the dialog */
-    user-select: none;
-    pointer-events: none;
-}
-
-.row-separator {
-    border-bottom: solid 2.5px var(--border-color);
-    margin: auto -24px;
-}
-
-#base64-paste-btn,
-#base64-paste-dialog .textarea {
-    width: 100%;
-    height: 40vh;
-    border: solid 12px #438cff;
-    border-radius: 8px;
-}
-
-#base64-paste-dialog .textarea {
-    display: flex;
-    align-items: center;
-    justify-content: center;
-    text-align: center;
-}
-
-#base64-paste-dialog .textarea::before {
-    font-size: 15px;
-    letter-spacing: 0.12em;
-    color: var(--primary-color);
-    font-weight: 700;
-    text-transform: uppercase;
-    white-space: pre-wrap;
-}
-
-
 /* Button */
 
 .button {
@@ -1338,76 +682,11 @@ canvas.circles {
     left: 0;
 }
 
-/* Loading Indicator */
-
-.progress {
-    width: 80px;
-    height: 80px;
-    position: absolute;
-    top: -8px;
-    clip: rect(0px, 80px, 80px, 40px);
-    --progress: rotate(0deg);
-    transition: transform 200ms;
-}
-
-.circle {
-    width: 72px;
-    height: 72px;
-    border: 4px solid var(--primary-color);
-    border-radius: 40px;
-    position: absolute;
-    clip: rect(0px, 40px, 80px, 0px);
-    will-change: transform;
-    transform: var(--progress);
-}
-
-.over50 {
-    clip: rect(auto, auto, auto, auto);
-}
-
-.over50 .circle.right {
-    transform: rotate(180deg);
-}
-
-
 /* Generic placeholder */
 [placeholder]:empty:before {
     content: attr(placeholder);
 }
 
-/* Toast */
-
-.toast-container {
-    padding: 0 8px 24px;
-    overflow: hidden;
-    pointer-events: none;
-}
-
-x-toast {
-    position: absolute;
-    min-height: 48px;
-    top: 50px;
-    width: 100%;
-    max-width: 344px;
-    background-color: rgb(var(--text-color));
-    color: rgb(var(--bg-color));
-    align-items: center;
-    box-sizing: border-box;
-    padding: 8px 24px;
-    z-index: 20;
-    transition: opacity 200ms, transform 300ms ease-out;
-    cursor: default;
-    line-height: 24px;
-    border-radius: 8px;
-    pointer-events: all;
-}
-
-x-toast:not([show]):not(:hover) {
-    opacity: 0;
-    transform: translateY(-100px);
-}
-
-
 /* Instructions */
 
 x-instructions {
@@ -1478,6 +757,38 @@ x-peers:empty~x-instructions {
     }
 }
 
+/* Toast */
+
+.toast-container {
+    padding: 0 8px 24px;
+    overflow: hidden;
+    pointer-events: none;
+}
+
+x-toast {
+    position: absolute;
+    min-height: 48px;
+    top: 50px;
+    width: 100%;
+    max-width: 344px;
+    background-color: rgb(var(--text-color));
+    color: rgb(var(--bg-color));
+    align-items: center;
+    box-sizing: border-box;
+    padding: 8px 24px;
+    z-index: 20;
+    transition: opacity 200ms, transform 300ms ease-out;
+    cursor: default;
+    line-height: 24px;
+    border-radius: 8px;
+    pointer-events: all;
+}
+
+x-toast:not([show]):not(:hover) {
+    opacity: 0;
+    transform: translateY(-100px);
+}
+
 /*
     Color Themes
 */
@@ -1508,46 +819,6 @@ body {
     transition: background-color 0.5s ease;
 }
 
-x-dialog x-paper {
-    background-color: rgb(var(--bg-color));
-}
-
-.textarea {
-    color: rgb(var(--text-color)) !important;
-    background-color: var(--bg-color-secondary) !important;
-}
-
-.textarea * {
-    margin: 0 !important;
-    padding: 0 !important;
-    color: unset !important;
-    background: unset !important;
-    border: unset !important;
-    opacity: unset !important;
-    font-family: inherit !important;
-    font-size: inherit !important;
-    font-style: unset !important;
-    font-weight: unset !important;
-}
-
-/* Image/Video/Audio Preview */
-.file-preview {
-    margin-bottom: 15px;
-}
-
-.file-preview:empty {
-    display: none;
-}
-
-.file-preview > img,
-.file-preview > audio,
-.file-preview > video {
-    max-width: 100%;
-    max-height: 40vh;
-    margin: auto;
-    display: block;
-}
-
 /* Styles for users who prefer dark mode at the OS level */
 @media (prefers-color-scheme: dark) {
 
@@ -1583,12 +854,20 @@ x-dialog x-paper {
 }
 
 /*
-    iOS specific styles
+    Browser specific styles
 */
-@supports (-webkit-overflow-scrolling: touch) {
-    html {
-        min-height: -webkit-fill-available;
-    }
+
+body {
+    /* mobile viewport bug fix */
+    min-height: -moz-available;          /* WebKit-based browsers will ignore this. */
+    min-height: -webkit-fill-available;  /* Mozilla-based browsers will ignore this. */
+    min-height: fill-available;
+}
+
+html {
+    min-height: -moz-available;          /* WebKit-based browsers will ignore this. */
+    min-height: -webkit-fill-available;  /* Mozilla-based browsers will ignore this. */
+    min-height: fill-available;
 }
 
 /* webkit scrollbar style*/