resolving merge conflict

.babelrc

@@ -2,8 +2,12 @@
   "presets": ["@babel/preset-react", "@babel/preset-env"],
   "comments": false,
   "plugins": [
-    ["react-intl", {
-        "messagesDir": "./src/i18n/"
-    }]
+    [
+      "formatjs",
+      {
+        "idInterpolationPattern": "[sha512:contenthash:base64:6]",
+        "ast": true
+      }
+    ]
   ]
 }

css/base.css

@@ -42,7 +42,7 @@ a.gray:focus {
   color: #999;
 }
 
-a.flat-button {
+.flat-button {
   display: flex;
   align-items: center;
   margin: 0.15rem 0.35rem;
@@ -55,11 +55,21 @@ a.flat-button {
   white-space: nowrap;
   text-transform: uppercase;
 }
-a.flat-button:hover,
-a.flat-button:focus {
+.flat-button:hover,
+.flat-button:focus {
   text-decoration: none;
 }
 
+.flat-button .faux {
+  height: 1.5em;
+  line-height: 1.5em;
+  text-transform: none;
+  padding-left: .5rem;
+  padding-right: .5rem;
+  border: 1px solid gray;
+  border-radius: 3px;
+}
+
 form {
   font-size: 1.1rem;
   padding: 0.5rem 0.75rem;
@@ -541,6 +551,11 @@ div.alert .content {
   margin-left: 1rem;
 }
 
+/* Extra spece on the right */
+.space-right {
+  margin-right: 0.25rem;
+}
+
 /* Container with whitish background and rounded corners */
 .rounded-container {
   position: relative;
@@ -825,7 +840,7 @@ i.search {
   display: flex;
   position: relative;
   padding: 0.35rem 0.25rem 0.5rem 0.35rem;
-  min-height: 3.5rem;
+  min-height: 3.75rem;
   flex-grow: 0;
   flex-shrink: 0;
   /* partial bottom border */
@@ -1075,11 +1090,11 @@ i.search {
 }
 
 .avatar-upload .inputfile.hidden {
-	width: 0.1px;
-	height: 0.1px;
-	opacity: 0;
-	overflow: hidden;
-	position: absolute;
+  width: 0.1px;
+  height: 0.1px;
+  opacity: 0;
+  overflow: hidden;
+  position: absolute;
 }
 
 .avatar-upload .inputfile + label.round {
@@ -2066,3 +2081,14 @@ ul.tabbar li.active > a:after {
   background-color: #1e88e5;
   border-radius: 0.08rem;
 }
+
+/* Highlighted text */
+.highlight {
+  color: teal;
+  font-weight: bolder;
+}
+
+.highlight .preview {
+  color: #5f9ea0;
+  font-weight: inherit;
+}

index-dev.html

@@ -29,13 +29,13 @@
     <!-- Styles for local elements -->
     <link rel="stylesheet" href="css/base.css" />
     <!-- ReactJS -->
-    <script crossorigin="anonymous" src="https://cdn.jsdelivr.net/npm/react@16/umd/react.development.js"></script>
-    <script crossorigin="anonymous" src="https://cdn.jsdelivr.net/npm/react-dom@16/umd/react-dom.development.js"></script>
+    <script crossorigin="anonymous" src="https://cdn.jsdelivr.net/npm/react@17/umd/react.development.js"></script>
+    <script crossorigin="anonymous" src="https://cdn.jsdelivr.net/npm/react-dom@17/umd/react-dom.development.js"></script>
     <!-- React-Intl for translations -->
-    <script crossorigin="anonymous" src="https://cdn.jsdelivr.net/npm/react-intl@4/dist/react-intl.js"></script>
+    <script crossorigin="anonymous" src="https://cdn.jsdelivr.net/npm/react-intl@5/react-intl.umd.js"></script>
     <!-- Firebase for push notifications -->
-    <script crossorigin="anonymous" src="https://cdn.jsdelivr.net/npm/firebase@7.20.0/firebase-app.js"></script>
-    <script crossorigin="anonymous" src="https://cdn.jsdelivr.net/npm/firebase@7.20.0/firebase-messaging.js"></script>
+    <script crossorigin="anonymous" src="https://cdn.jsdelivr.net/npm/firebase@7/firebase-app.js"></script>
+    <script crossorigin="anonymous" src="https://cdn.jsdelivr.net/npm/firebase@7/firebase-messaging.js"></script>
   </head>
 
   <body>

index.html

@@ -22,11 +22,11 @@
 <link rel="stylesheet" href="https://fonts.googleapis.com/css?family=Roboto:300,400,400i,500,700,700i" />
 <link rel="stylesheet" href="https://fonts.googleapis.com/icon?family=Material+Icons" />
 <link rel="stylesheet" href="css/base.min.css" />
-<script crossorigin="anonymous" src="https://cdn.jsdelivr.net/npm/react@16.13.1/umd/react.production.min.js"></script>
-<script crossorigin="anonymous" src="https://cdn.jsdelivr.net/npm/react-dom@16.13.1/umd/react-dom.production.min.js"></script>
-<script crossorigin="anonymous" src="https://cdn.jsdelivr.net/npm/react-intl@4.7.6/dist/react-intl.min.js"></script>
-<script crossorigin="anonymous" src="https://cdn.jsdelivr.net/npm/firebase@7.20.0/firebase-app.js"></script>
-<script crossorigin="anonymous" src="https://cdn.jsdelivr.net/npm/firebase@7.20.0/firebase-messaging.js"></script>
+<script crossorigin="anonymous" src="https://cdn.jsdelivr.net/npm/react@17.0.1/umd/react.production.min.js"></script>
+<script crossorigin="anonymous" src="https://cdn.jsdelivr.net/npm/react-dom@17.0.1/umd/react-dom.production.min.js"></script>
+<script crossorigin="anonymous" src="https://cdn.jsdelivr.net/npm/react-intl@5.10.14/react-intl.umd.min.js"></script>
+<script crossorigin="anonymous" src="https://cdn.jsdelivr.net/npm/firebase@7.24.0/firebase-app.js"></script>
+<script crossorigin="anonymous" src="https://cdn.jsdelivr.net/npm/firebase@7.24.0/firebase-messaging.js"></script>
 </head>
 <body>
 <noscript><div id="noscript-message"><div id="noscript-title">Javascript support is required.</div>

package.json

@@ -1,7 +1,7 @@
 {
   "name": "tinode-webapp",
   "description": "Tinode messenger for the web",
-  "version": "0.16.9-rc1",
+  "version": "0.17.0",
   "repository": {
     "type": "git",
     "url": "https://github.com/tinode/example-react-js.git"
@@ -31,25 +31,14 @@
     "audio/msg.mp3",
     "css/base.css",
     "css/base.min.css",
-    "img/bg_messages.png",
-    "img/logo.svg",
-    "img/logo32x32.png",
-    "img/logo32x32a.png",
-    "img/logo96.png",
-    "img/logo192.png",
-    "img/badge96.png",
-    "img/broken_image.png",
-    "img/og-logo.jpeg",
+    "img/*.png",
+    "img/*.svg",
+    "img/*.jpeg",
     "index-dev.html",
     "index.html",
     "manifest.json",
     "service-worker.js",
-    "firebase-init.js",
-    "web-desktop-2.png",
-    "web-mob-chat-1.png",
-    "web-mob-contacts-1.png",
-    "web-mob-info-1.png",
-    "web-mob-new-chat-1.png"
+    "firebase-init.js"
   ],
   "keywords": [
     "chat",
@@ -69,24 +58,23 @@
   "license": "Apache-2.0",
   "dependencies": {
     "firebase": "^7.24.0",
-    "react": "^16.14.0",
-    "react-dom": "^16.14.0",
-    "react-intl": "^4.7.6",
-    "tinode-sdk": "^0.16.9-rc2"
+    "react": "^17.0.1",
+    "react-dom": "^17.0.1",
+    "react-intl": "^5.10.14",
+    "tinode-sdk": "^0.16.10"
   },
   "devDependencies": {
     "@babel/core": "^7.12.10",
-    "@babel/preset-env": "^7.12.10",
+    "@babel/preset-env": "^7.12.11",
     "@babel/preset-react": "^7.12.10",
     "babel-loader": "^8.2.2",
-    "babel-plugin-react-intl": "^7.9.4",
-    "browserslist": "^4.16.0",
-    "copy-webpack-plugin": "^6.4.0",
+    "babel-plugin-formatjs": "^9.0.2",
+    "browserslist": "^4.16.1",
+    "copy-webpack-plugin": "^6.4.1",
     "cssnano": "^4.1.10",
-    "postcss": "^7.0.35",
-    "postcss-cli": "^7.1.2",
-    "terser-webpack-plugin": "^3.1.0",
-    "webpack": "^4.44.2",
-    "webpack-cli": "^3.3.12"
+    "postcss": "^8.2.4",
+    "postcss-cli": "^8.3.1",
+    "webpack": "^5.13.0",
+    "webpack-cli": "^4.3.1"
   }
 }

src/config.js

@@ -81,6 +81,9 @@ export const MAX_ONLINE_IN_TOPIC = 4;
 // Maximum length of user name, topic title, and private comment.
 export const MAX_TITLE_LENGTH = 60;
 
+// Length of message previews in chat list, in characters.
+export const MESSAGE_PREVIEW_LENGTH = 80;
+
 // Link for "Contact Us".
 export const LINK_CONTACT_US = 'email:info@tinode.co';
 

src/lib/strformat.js

@@ -3,15 +3,17 @@ export function shortDateFormat(then, locale) {
   locale = locale || window.navigator.userLanguage || window.navigator.language;
   const now = new Date();
   if (then.getFullYear() == now.getFullYear()) {
+    // Same year.
     if (then.getMonth() == now.getMonth() && then.getDate() == now.getDate()) {
-	    return then.toLocaleTimeString(locale, {hour12: false, hour: '2-digit', minute: '2-digit'});
-    } else {
-	    return then.toLocaleDateString(locale,
-        {hour12: false, month: 'short', day: 'numeric', hour: '2-digit', minute: '2-digit'});
+      // Same month and day, show time only.
+      return then.toLocaleTimeString(locale, {hour12: false, hour: '2-digit', minute: '2-digit'});
     }
+    // Different month and/or day, show month day, time.
+    return then.toLocaleDateString(locale,
+      {hour12: false, month: 'short', day: 'numeric', hour: '2-digit', minute: '2-digit'});
   }
-  return then.toLocaleDateString(locale,
-    {hour12: false, year: 'numeric', month: 'short', day: 'numeric', hour: '2-digit', minute: '2-digit'});
+  // Different year: just show the date.
+  return then.toLocaleDateString(locale, {year: 'numeric', month: 'short', day: 'numeric'});
 }
 
 // Convert seconds to minutes:seconds, i.e. 156 sec -> 2:36.

src/lib/utils.js

@@ -1,5 +1,7 @@
 // Odds and ends
 
+import Tinode from 'tinode-sdk';
+
 // Make shortcut icon appear with a green dot + show unread count in title.
 export function updateFavicon(count) {
   const oldIcon = document.getElementById('shortcut-icon');
@@ -144,3 +146,20 @@ export function sanitizeImageUrl(url) {
 
   return null;
 }
+
+// Given message's received status, return name and color of a delivery indicator icon.
+export function deliveryMarker(received) {
+  switch (received) {
+    case Tinode.MESSAGE_STATUS_SENDING:
+      return { name: 'access_time' }; // watch face
+    case Tinode.MESSAGE_STATUS_FAILED:
+      return { name: 'warning', color: 'amber' }; // yellow icon /!\
+    case Tinode.MESSAGE_STATUS_SENT:
+      return { name: 'done' }; // checkmark
+    case Tinode.MESSAGE_STATUS_RECEIVED:
+      return { name: 'done_all' }; // double checkmark
+    case Tinode.MESSAGE_STATUS_READ:
+      return { name: 'done_all', color: 'blue' }; // blue double checkmark
+  }
+  return null;
+}

src/version.js

@@ -1,3 +1,3 @@
 // This is a generated file. Don't edit.
 
-export const PACKAGE_VERSION = "0.16.9-rc1";
+export const PACKAGE_VERSION = "0.17.0";

src/views/info-view.jsx

@@ -230,8 +230,8 @@ class InfoView extends React.Component {
       avatar: makeImageUrl(topic.public ? topic.public.photo : null),
       private: topic.private ? topic.private.comment : null,
       address: topic.name,
-      groupTopic: (topic.getType() == 'grp'),
-      channel: topic.isChannel(),
+      groupTopic: topic.isGroupType(),
+      channel: topic.isChannelType(),
       showMemberPanel: false,
       access: acs ? acs.getMode() : undefined,
       modeGiven: acs ? acs.getGiven() : undefined,

src/views/messages-view.jsx

@@ -159,11 +159,7 @@ class MessagesView extends React.Component {
 
       // Don't request the tags. They are useless unless the user
       // is the owner and is editing the topic.
-      let getQuery = topic.startMetaQuery().withLaterDesc();
-      if (this.state.isSharer || (newTopic && !topic.isChannel())) {
-        // Request subscriptions only if one of S,O,A is given or it's a new non-channel topic.
-        getQuery = getQuery.withLaterSub();
-      }
+      let getQuery = topic.startMetaQuery().withLaterDesc().withLaterSub();
       if (this.state.isReader || newTopic) {
         // Reading is either permitted or we don't know because it's a new topic. Ask for messages.
         getQuery = getQuery.withLaterData(MESSAGES_PAGE);
@@ -280,7 +276,7 @@ class MessagesView extends React.Component {
           });
         }
         Object.assign(nextState, {
-          channel: topic.isChannel()
+          channel: topic.isChannelType()
         });
       } else {
         // Invalid topic.
@@ -601,7 +597,7 @@ class MessagesView extends React.Component {
     const menuItems = messageSpecificMenuItems || [];
     const topic = this.props.tinode.getTopic(params.topicName);
     if (topic) {
-      if (!topic.isChannel()) {
+      if (!topic.isChannelType()) {
         menuItems.push('message_delete');
       }
       const acs = topic.getAccessMode();
@@ -821,8 +817,8 @@ class MessagesView extends React.Component {
         );
       } else {
         const topic = this.props.tinode.getTopic(this.state.topic);
-        const isChannel = topic.isChannel();
-        const groupTopic = topic.getType() == 'grp' && !isChannel;
+        const isChannel = topic.isChannelType();
+        const groupTopic = topic.isGroupType() && !isChannel;
         let messageNodes = [];
         let previousFrom = null;
         let chatBoxClass = null;

src/views/tinode-web.jsx

@@ -212,66 +212,69 @@ class TinodeWeb extends React.Component {
       viewportHeight: document.documentElement.clientHeight
     });
 
+    const keepLoggedIn = LocalStorageUtil.getObject('keep-logged-in');
+
     const {formatMessage, locale} = this.props.intl;
-    this.tinode = TinodeWeb.tnSetup(this.state.serverAddress, this.state.transport, locale);
-    this.tinode.onConnect = this.handleConnected;
-    this.tinode.onDisconnect = this.handleDisconnect;
-    this.tinode.onAutoreconnectIteration = this.handleAutoreconnectIteration;
-
-    // Initialize desktop alerts.
-    if (this.state.desktopAlertsEnabled) {
-      try {
-        this.fbPush = firebase.initializeApp(FIREBASE_INIT, APP_NAME).messaging();
-        this.fbPush.usePublicVapidKey(FIREBASE_INIT.messagingVapidKey);
-        navigator.serviceWorker.register('/service-worker.js').then((reg) => {
-          this.checkForAppUpdate(reg);
-          this.fbPush.useServiceWorker(reg);
-          reg.active.postMessage(JSON.stringify({locale: locale}));
-          this.initDesktopAlerts();
-          if (this.state.desktopAlerts) {
-            if (!this.state.firebaseToken) {
-              this.togglePushToken(true);
-            } else {
-              this.tinode.setDeviceToken(this.state.firebaseToken, true);
+    new Promise((resolve, reject) => {
+      this.tinode = TinodeWeb.tnSetup(this.state.serverAddress, this.state.transport, locale, keepLoggedIn, resolve);
+      this.tinode.onConnect = this.handleConnected;
+      this.tinode.onDisconnect = this.handleDisconnect;
+      this.tinode.onAutoreconnectIteration = this.handleAutoreconnectIteration;
+    }).then(() => {
+      // Initialize desktop alerts.
+      if (this.state.desktopAlertsEnabled) {
+        try {
+          this.fbPush = firebase.initializeApp(FIREBASE_INIT, APP_NAME).messaging();
+          this.fbPush.usePublicVapidKey(FIREBASE_INIT.messagingVapidKey);
+          navigator.serviceWorker.register('/service-worker.js').then((reg) => {
+            this.checkForAppUpdate(reg);
+            this.fbPush.useServiceWorker(reg);
+            reg.active.postMessage(JSON.stringify({locale: locale}));
+            this.initDesktopAlerts();
+            if (this.state.desktopAlerts) {
+              if (!this.state.firebaseToken) {
+                this.togglePushToken(true);
+              } else {
+                this.tinode.setDeviceToken(this.state.firebaseToken, true);
+              }
             }
-          }
-        }).catch((err) => {
-          // registration failed :(
-          console.log("Failed to register service worker:", err);
-        });
-      } catch (err) {
-        this.handleError(formatMessage({id: 'push_init_failed'}), 'err');
-        console.log("Failed to initialize push notifications", err);
-        this.setState({desktopAlertsEnabled: false});
+          }).catch((err) => {
+            // registration failed :(
+            console.log("Failed to register service worker:", err);
+          });
+        } catch (err) {
+          this.handleError(formatMessage(messages.push_init_failed), 'err');
+          console.log("Failed to initialize push notifications", err);
+          this.setState({desktopAlertsEnabled: false});
+        }
       }
-    }
 
-    const token = LocalStorageUtil.getObject('keep-logged-in') ?
-      LocalStorageUtil.getObject('auth-token') : undefined;
+      const token = keepLoggedIn ? LocalStorageUtil.getObject('auth-token') : undefined;
 
-    const parsedNav = HashNavigation.parseUrlHash(window.location.hash);
-    if (token) {
-      this.setState({autoLogin: true});
+      const parsedNav = HashNavigation.parseUrlHash(window.location.hash);
+      if (token) {
+        this.setState({autoLogin: true});
 
-      // When reading from storage, date is returned as string.
-      token.expires = new Date(token.expires);
-      this.tinode.setAuthToken(token);
-      this.tinode.connect().catch((err) => {
-        // Socket error
-        this.handleError(err.message, 'err');
-      });
-      delete parsedNav.params.info;
-      delete parsedNav.params.tab;
-      parsedNav.path[0] = '';
-      HashNavigation.navigateTo(HashNavigation.composeUrlHash(parsedNav.path, parsedNav.params));
-    } else if (!parsedNav.params.token) {
-      HashNavigation.navigateTo('');
-    }
+        // When reading from storage, date is returned as string.
+        token.expires = new Date(token.expires);
+        this.tinode.setAuthToken(token);
+        this.tinode.connect().catch((err) => {
+          // Socket error
+          this.handleError(err.message, 'err');
+        });
+        delete parsedNav.params.info;
+        delete parsedNav.params.tab;
+        parsedNav.path[0] = '';
+        HashNavigation.navigateTo(HashNavigation.composeUrlHash(parsedNav.path, parsedNav.params));
+      } else if (!parsedNav.params.token) {
+        HashNavigation.navigateTo('');
+      }
 
-    this.readTimer = null;
-    this.readTimerCallback = null;
+      this.readTimer = null;
+      this.readTimerCallback = null;
 
-    this.handleHashRoute();
+      this.handleHashRoute();
+    });
   }
 
   componentWillUnmount() {
@@ -281,8 +284,9 @@ class TinodeWeb extends React.Component {
   }
 
   // Setup transport (usually websocket) and server address. This will terminate connection with the server.
-  static tnSetup(serverAddress, transport, locale) {
-    const tinode = new Tinode(APP_NAME, serverAddress, API_KEY, transport, isSecureConnection());
+  static tnSetup(serverAddress, transport, locale, persistentCache, onSetupCompleted) {
+    const tinode = new Tinode({appName: APP_NAME, host: serverAddress, apiKey: API_KEY, transport: transport,
+      secure: isSecureConnection(), persist: persistentCache}, onSetupCompleted);
     tinode.setHumanLanguage(locale);
     tinode.enableLogging(LOGGING_ENABLED, true);
     return tinode;
@@ -361,7 +365,7 @@ class TinodeWeb extends React.Component {
     if (online) {
       this.handleError();
     } else {
-      this.handleError(this.props.intl.formatMessage({id: 'no_connection'}), 'warn');
+      this.handleError(this.props.intl.formatMessage(messages.no_connection), 'warn');
     }
     this.setState({liveConnection: online});
   }
@@ -484,7 +488,7 @@ class TinodeWeb extends React.Component {
         if (ctrl.code >= 300 && ctrl.text === 'validate credentials') {
           this.setState({loadSpinnerVisible: false});
           if (cred) {
-            this.handleError(this.props.intl.formatMessage({id: 'code_doesnot_match'}), 'warn');
+            this.handleError(this.props.intl.formatMessage(messages.code_doesnot_match), 'warn');
           }
           this.handleCredentialsRequest(ctrl.params);
         } else {
@@ -627,7 +631,7 @@ class TinodeWeb extends React.Component {
   }
 
   // Merge search results and contact list to create a single flat
-  // list of kown contacts for GroupManager to use.
+  // list of known contacts for GroupManager to use.
   static prepareSearchableContacts(chatList, foundContacts) {
     const merged = {};
 
@@ -816,7 +820,7 @@ class TinodeWeb extends React.Component {
         // Accept given permissions.
         const mode = topic.getAccessMode().getGiven();
         response = topic.setMeta({sub: {mode: mode}});
-        if (topic.isP2P()) {
+        if (topic.isP2PType()) {
           // For P2P topics change 'given' permission of the peer too.
           // In p2p topics the other user has the same name as the topic.
           response = response.then((ctrl) => {
@@ -924,10 +928,12 @@ class TinodeWeb extends React.Component {
     const serverAddress = settings.serverAddress || this.state.serverAddress;
     const transport = settings.transport || this.state.transport;
     if (this.tinode) {
+      this.tinode.clearStorage();
       this.tinode.onDisconnect = undefined;
       this.tinode.disconnect();
     }
-    this.tinode = TinodeWeb.tnSetup(serverAddress, transport, this.props.intl.locale);
+    this.tinode = TinodeWeb.tnSetup(serverAddress, transport, this.props.intl.locale,
+      LocalStorageUtil.getObject('keep-logged-in'));
     this.tinode.onConnect = this.handleConnected;
     this.tinode.onDisconnect = this.handleDisconnect;
 
@@ -1156,11 +1162,14 @@ class TinodeWeb extends React.Component {
     }
 
     if (this.tinode) {
+      this.tinode.clearStorage();
       this.tinode.onDisconnect = undefined;
       this.tinode.disconnect();
     }
     this.setState(this.getBlankState());
-    this.tinode = TinodeWeb.tnSetup(this.state.serverAddress, this.state.transport, this.props.intl.locale);
+
+    this.tinode = TinodeWeb.tnSetup(this.state.serverAddress,
+      this.state.transport, this.props.intl.locale, LocalStorageUtil.getObject('keep-logged-in'));
     this.tinode.onConnect = this.handleConnected;
     this.tinode.onDisconnect = this.handleDisconnect;
     HashNavigation.navigateTo('');
@@ -1375,7 +1384,7 @@ class TinodeWeb extends React.Component {
   handleResetPassword(scheme, newPassword, token) {
     token = base64ReEncode(token);
     if (!token) {
-      this.handleError(this.props.intl.formatMessage({id: 'invalid_security_token'}), 'err');
+      this.handleError(this.props.intl.formatMessage(messages.invalid_security_token), 'err');
     } else {
       this.tinode.connect()
         .then(() => {

src/widgets/chat-message.jsx

@@ -1,7 +1,7 @@
 // Single message, sent or received.
 import React from 'react';
 import { FormattedMessage } from 'react-intl';
-import { Drafty } from 'tinode-sdk'
+import { Drafty } from 'tinode-sdk';
 
 import Attachment from './attachment.jsx';
 import LetterTile from './letter-tile.jsx';
@@ -165,12 +165,23 @@ export default class ChatMessage extends React.Component {
 import { BROKEN_IMAGE_SIZE, REM_SIZE } from '../config.js';
 import { fitImageSize } from '../lib/blob-helpers.js';
 
+// Converts Drafty elements into React classes.
+// 'this' is set by the caller.
 function draftyFormatter(style, data, values, key) {
+  if (style == 'EX') {
+    // attachments are handled elsewhere.
+    return null;
+  }
+
   let el = Drafty.tagName(style);
   if (el) {
     const attr = Drafty.attrValue(style, data) || {};
     attr.key = key;
     switch (style) {
+      case 'HL':
+        // Highlighted text. Assign class name.
+        attr.className = 'highlight';
+        break;
       case 'IM':
         // Additional processing for images
         if (data) {
@@ -210,9 +221,16 @@ function draftyFormatter(style, data, values, key) {
         // Form
         attr.className = 'bot-form';
         break;
-      case 'FE':
+      case 'RW':
         // Form element formatting is dependent on element content.
         break;
+      default:
+        if (el == '_UNKN') {
+          // Unknown element.
+          // TODO: make it prettier.
+          el = <><span className="material-icons">extension</span></>;
+        }
+        break;
     }
     return React.createElement(el, attr, values);
   } else {

src/widgets/contact-list.jsx

@@ -3,6 +3,7 @@
 import React from 'react';
 import { defineMessages, injectIntl } from 'react-intl';
 
+import { Drafty } from 'tinode-sdk';
 import Tinode from 'tinode-sdk';
 
 import Contact from './contact.jsx';
@@ -10,6 +11,8 @@ import ContactAction from './contact-action.jsx';
 
 import { makeImageUrl } from '../lib/blob-helpers.js';
 
+import { MESSAGE_PREVIEW_LENGTH } from '../config.js';
+
 const messages = defineMessages({
   badge_you: {
     id: 'badge_you',
@@ -25,7 +28,7 @@ const messages = defineMessages({
 
 class ContactList extends React.Component {
   render() {
-    const {formatMessage} = this.props.intl;
+    const { formatMessage } = this.props.intl;
     const showCheckmark = Array.isArray(this.props.topicSelected);
     const contactNodes = [];
     let contactsCount = 0;
@@ -70,14 +73,27 @@ class ContactList extends React.Component {
               badges.push({name: formatMessage(messages.badge_owner), color: 'blue'});
             }
           }
+
           const comment = Array.isArray(c.private) ?
             c.private.join(',') : (c.private ? c.private.comment : null);
-
+          let preview;
+          let deliveryStatus;
+          if (!this.props.showMode) {
+            const msg = c.latestMessage();
+            if (msg) {
+              deliveryStatus = c.msgStatus(msg);
+              preview = typeof msg.content == 'string' ?
+                msg.content.substr(0, MESSAGE_PREVIEW_LENGTH) :
+                Drafty.preview(msg.content, MESSAGE_PREVIEW_LENGTH);
+            }
+          }
           contactNodes.push(
             <Contact
               title={c.public ? c.public.fn : null}
               avatar={makeImageUrl(c.public ? c.public.photo : null)}
               comment={comment}
+              preview={preview}
+              received={deliveryStatus}
               unread={this.props.showUnread ? c.unread : 0}
               now={c.online && this.props.connected}
               acs={c.acs}

src/widgets/contact.jsx

@@ -2,10 +2,15 @@
 import React from 'react';
 import { FormattedMessage } from 'react-intl';
 
-import LetterTile from './letter-tile.jsx';
 import ContactBadges from './contact-badges.jsx';
+import LetterTile from './letter-tile.jsx';
+import ReceivedMarker from './received-marker.jsx'
 import UnreadBadge from './unread-badge.jsx';
 
+import { Drafty } from 'tinode-sdk';
+
+import { deliveryMarker } from '../lib/utils.js';
+
 export default class Contact extends React.Component {
   constructor(props) {
     super(props);
@@ -35,7 +40,7 @@ export default class Contact extends React.Component {
       title = <i><FormattedMessage id="unnamed_topic" /></i>;
     } else if (title.length > 30) {
       // FIXME: this is probably wrong for RTL languages.
-      title = title.substring(0, 28) + '...';
+      title = title.substring(0, 28) + '…';
     }
     const online = this.props.now ? 'online' : 'offline';
     const avatar = this.props.avatar ? this.props.avatar : true;
@@ -53,9 +58,16 @@ export default class Contact extends React.Component {
       }
     }
 
+    const subtitle = this.props.preview ?
+      (typeof this.props.preview == 'string' ? this.props.preview :
+        React.createElement(React.Fragment, null, Drafty.format(this.props.preview, draftyFormatter, this))) :
+      this.props.comment;
+
+    const icon = deliveryMarker(this.props.received);
+    const marker = icon ? <i className={'material-icons small space-right ' + icon.color}>{icon.name}</i> : null;
+
     return (
-      <li className={!this.props.showCheckmark && this.props.selected ? "selected" : null}
-        onClick={this.handleClick}>
+      <li className={!this.props.showCheckmark && this.props.selected ? 'selected' : null} onClick={this.handleClick}>
         <div className="avatar-box">
           <LetterTile
             avatar={avatar}
@@ -71,7 +83,7 @@ export default class Contact extends React.Component {
             {this.props.isChannel ? <img src="/img/channel.png" className="channel" alt="channel" /> : null}
             <UnreadBadge count={this.props.unread} /><ContactBadges badges={icon_badges} />
           </div>
-          {this.props.comment ? <div className="contact-comment">{this.props.comment}</div> : null}
+          <div className="contact-comment">{marker}{subtitle || '\u00A0'}</div>
           <span><ContactBadges badges={badges} /></span>
         </div>
         {this.props.showContextMenu ?
@@ -84,3 +96,51 @@ export default class Contact extends React.Component {
     );
   }
 };
+
+
+// Converts Drafty object into a one-line preview.
+function draftyFormatter(style, data, values, key) {
+  let el = Drafty.tagName(style);
+  const attr = { key: key };
+  if (el) {
+    switch (style) {
+      case 'HL':
+        // Make highlight less prominent in preview.
+        attr.className = 'highlight preview';
+        break;
+      case 'LN':
+        // Disable links in previews.
+        el = 'span';
+        break;
+      case 'IM':
+        // Replace image with '[icon] Image'.
+        el = React.Fragment;
+        values = [<i className="material-icons">photo</i>, 'Picture'];
+        break;
+      case 'BN':
+        el = 'span';
+        attr.className = 'flat-button faux';
+        break;
+      case 'FM':
+        el = React.Fragment;
+        values = [<i className="material-icons">dashboard</i>, 'Form:'];
+        break;
+      case 'RW':
+        el = React.Fragment;
+        break;
+      case 'EX':
+        el = React.Fragment;
+        values = [<i className="material-icons">attachment</i>, 'Attachment'];
+        break;
+      default:
+        if (el == '_UNKN') {
+          el = React.Fragment;
+          values = [<i className="material-icons">extension</i>];
+        }
+        break;
+    }
+    return React.createElement(el, attr, values);
+  } else {
+    return values;
+  }
+};

src/widgets/context-menu.jsx

@@ -107,7 +107,7 @@ class ContextMenu extends React.Component {
         title: formatMessage(messages.clear_messages),
         handler: (params, errorHandler) => {
           return props.onShowAlert(
-            formatMessage({id: 'menu_item_clear_messages'}), // title
+            formatMessage(messages.menu_item_clear_messages), // title
             formatMessage({id: 'clear_messages_warning'}), // content
             (() => { this.deleteMessages(true, false, params, errorHandler); }), // onConfirm
             null, // "OK"
@@ -121,7 +121,7 @@ class ContextMenu extends React.Component {
         title: formatMessage(messages.clear_for_all),
         handler: (params, errorHandler) => {
           return props.onShowAlert(
-            formatMessage({id: 'menu_item_clear_messages_for_all'}), // title
+            formatMessage(messages.menu_item_clear_messages_for_all), // title
             formatMessage({id: 'delete_messages_warning'}), // content
             (() => { return this.deleteMessages(true, true, params, errorHandler); }),
             null, // "OK"
@@ -171,7 +171,7 @@ class ContextMenu extends React.Component {
         title: formatMessage(messages.block),
         handler: (params, errorHandler) => {
           return props.onShowAlert(
-            formatMessage({id: 'menu_item_block'}), // title
+            formatMessage(messages.menu_item_block), // title
             formatMessage(messages.topic_block_warning), // content
             (() => {
               return this.topicPermissionSetter('-JP', params, errorHandler).then((ctrl) => {
@@ -190,7 +190,7 @@ class ContextMenu extends React.Component {
         title: formatMessage(messages.topic_delete),
         handler: (params, errorHandler) => {
           return props.onShowAlert(
-            formatMessage({id: 'menu_item_delete_topic'}), // title
+            formatMessage(messages.menu_item_delete_topic), // title
             formatMessage(messages.topic_delete_warning), // content
             (() => {
               const topic = this.props.tinode.getTopic(params.topicName);

src/widgets/received-marker.jsx

@@ -5,6 +5,7 @@ import { defineMessages, injectIntl } from 'react-intl';
 import Tinode from 'tinode-sdk';
 
 import { shortDateFormat } from '../lib/strformat.js';
+import { deliveryMarker } from '../lib/utils.js';
 
 const messages = defineMessages({
   'sending': {
@@ -31,18 +32,8 @@ class ReceivedMarker extends React.PureComponent {
       timestamp = shortDateFormat(this.props.timestamp, this.props.intl.locale);
     }
 
-    let marker = null;
-    if (this.props.received <= Tinode.MESSAGE_STATUS_SENDING) {
-      marker = (<i className="material-icons small">access_time</i>); // watch face
-    } else if (this.props.received == Tinode.MESSAGE_STATUS_FAILED) {
-      marker = (<i className="material-icons small amber">warning</i>); // yellow icon /!\
-    } else if (this.props.received == Tinode.MESSAGE_STATUS_SENT) {
-      marker = (<i className="material-icons small">done</i>); // checkmark
-    } else if (this.props.received == Tinode.MESSAGE_STATUS_RECEIVED) {
-      marker = (<i className="material-icons small">done_all</i>); // double checkmark
-    } else if (this.props.received == Tinode.MESSAGE_STATUS_READ) {
-      marker = (<i className="material-icons small blue">done_all</i>); // blue double checkmark
-    }
+    const icon = deliveryMarker(this.props.received);
+    const marker = icon ? <i className={'material-icons small ' + icon.color}>{icon.name}</i> : null;
 
     return (
       <span className="timestamp">

webpack.config.js

@@ -13,7 +13,7 @@ module.exports = (env, argv) => {
       rules: [
         {
           test: /\.jsx?$/,
-          loaders: [
+          use: [
             'babel-loader',
           ],
           exclude: /node_modules/,
@@ -26,14 +26,17 @@ module.exports = (env, argv) => {
       publicPath: '/umd/'
     },
     optimization: {
+      minimize: (argv.mode === 'production'),
       minimizer: [
         new TerserPlugin({
-          sourceMap: true,
           terserOptions: {
             ecma: undefined,
             warnings: false,
             parse: {},
             compress: {},
+            format: {
+              comments: false,
+            },
             mangle: true, // Note `mangle.properties` is `false` by default.
             module: false,
             output: null,
@@ -44,6 +47,7 @@ module.exports = (env, argv) => {
             keep_fnames: false,
             safari10: false,
           },
+          extractComments: false,
         })
       ]
     },