merge in develop

src/AddThreepid.js

@@ -38,11 +38,13 @@ class AddThreepid {
      */
     addEmailAddress(emailAddress, bind) {
         this.bind = bind;
-        return MatrixClientPeg.get().requestEmailToken(emailAddress, this.clientSecret, 1).then((res) => {
+        return MatrixClientPeg.get().requestAdd3pidEmailToken(emailAddress, this.clientSecret, 1).then((res) => {
             this.sessionId = res.sid;
             return res;
         }, function(err) {
-            if (err.httpStatus) {
+            if (err.errcode == 'M_THREEPID_IN_USE') {
+                err.message = "This email address is already in use";
+            } else if (err.httpStatus) {
                 err.message = err.message + ` (Status ${err.httpStatus})`;
             }
             throw err;

src/CallHandler.js

@@ -181,11 +181,11 @@ function _onAction(payload) {
             console.error("Unknown conf call type: %s", payload.type);
         }
     }
-    var ErrorDialog = sdk.getComponent("dialogs.ErrorDialog");
 
     switch (payload.action) {
         case 'place_call':
             if (module.exports.getAnyActiveCall()) {
+                const ErrorDialog = sdk.getComponent("dialogs.ErrorDialog");
                 Modal.createDialog(ErrorDialog, {
                     title: "Existing Call",
                     description: "You are already in a call."
@@ -195,6 +195,7 @@ function _onAction(payload) {
 
             // if the runtime env doesn't do VoIP, whine.
             if (!MatrixClientPeg.get().supportsVoip()) {
+                const ErrorDialog = sdk.getComponent("dialogs.ErrorDialog");
                 Modal.createDialog(ErrorDialog, {
                     title: "VoIP is unsupported",
                     description: "You cannot place VoIP calls in this browser."
@@ -210,7 +211,7 @@ function _onAction(payload) {
 
             var members = room.getJoinedMembers();
             if (members.length <= 1) {
-                var ErrorDialog = sdk.getComponent("dialogs.ErrorDialog");
+                const ErrorDialog = sdk.getComponent("dialogs.ErrorDialog");
                 Modal.createDialog(ErrorDialog, {
                     description: "You cannot place a call with yourself."
                 });
@@ -236,23 +237,37 @@ function _onAction(payload) {
         case 'place_conference_call':
             console.log("Place conference call in %s", payload.room_id);
             if (!ConferenceHandler) {
+                const ErrorDialog = sdk.getComponent("dialogs.ErrorDialog");
                 Modal.createDialog(ErrorDialog, {
                     description: "Conference calls are not supported in this client"
                 });
             }
             else if (!MatrixClientPeg.get().supportsVoip()) {
+                const ErrorDialog = sdk.getComponent("dialogs.ErrorDialog");
                 Modal.createDialog(ErrorDialog, {
                     title: "VoIP is unsupported",
                     description: "You cannot place VoIP calls in this browser."
                 });
             }
             else {
-                ConferenceHandler.createNewMatrixCall(
-                    MatrixClientPeg.get(), payload.room_id
-                ).done(function(call) {
-                    placeCall(call);
-                }, function(err) {
-                    console.error("Failed to setup conference call: %s", err);
+                var QuestionDialog = sdk.getComponent("dialogs.QuestionDialog");
+                Modal.createDialog(QuestionDialog, {
+                    title: "Warning!",
+                    description: "Conference calling in Vector is in development and may not be reliable.",
+                    onFinished: confirm=>{
+                        if (confirm) {
+                            ConferenceHandler.createNewMatrixCall(
+                                MatrixClientPeg.get(), payload.room_id
+                            ).done(function(call) {
+                                placeCall(call);
+                            }, function(err) {
+                                Modal.createDialog(ErrorDialog, {
+                                    title: "Failed to set up conference call",
+                                    description: "Conference call failed: " + err,
+                                });
+                            });
+                        }
+                    },
                 });
             }
             break;

src/ContentMessages.js

@@ -52,6 +52,36 @@ function infoForImageFile(imageFile) {
     return deferred.promise;
 }
 
+function infoForVideoFile(videoFile) {
+    var deferred = q.defer();
+
+    // Load the file into an html element
+    var video = document.createElement("video");
+
+    var reader = new FileReader();
+    reader.onload = function(e) {
+        video.src = e.target.result;
+
+        // Once ready, returns its size
+        video.onloadedmetadata = function() {
+            deferred.resolve({
+                w: video.videoWidth,
+                h: video.videoHeight
+            });
+        };
+        video.onerror = function(e) {
+            deferred.reject(e);
+        };
+    };
+    reader.onerror = function(e) {
+        deferred.reject(e);
+    };
+    reader.readAsDataURL(videoFile);
+
+    return deferred.promise;
+}
+
+
 class ContentMessages {
     constructor() {
         this.inprogress = [];
@@ -74,13 +104,25 @@ class ContentMessages {
         var def = q.defer();
         if (file.type.indexOf('image/') == 0) {
             content.msgtype = 'm.image';
-            infoForImageFile(file).then(function (imageInfo) {
+            infoForImageFile(file).then(imageInfo=>{
                 extend(content.info, imageInfo);
                 def.resolve();
+            }, error=>{
+                content.msgtype = 'm.file';
+                def.resolve();
             });
         } else if (file.type.indexOf('audio/') == 0) {
             content.msgtype = 'm.audio';
             def.resolve();
+        } else if (file.type.indexOf('video/') == 0) {
+            content.msgtype = 'm.video';
+            infoForVideoFile(file).then(videoInfo=>{
+                extend(content.info, videoInfo);
+                def.resolve();
+            }, error=>{
+                content.msgtype = 'm.file';
+                def.resolve();
+            });
         } else {
             content.msgtype = 'm.file';
             def.resolve();

src/GuestAccess.js

@@ -1,51 +0,0 @@
-/*
-Copyright 2015 OpenMarket Ltd
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-    http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-*/
-const IS_GUEST_KEY = "matrix-is-guest";
-
-class GuestAccess {
-
-    constructor(localStorage) {
-        this.localStorage = localStorage;
-        try {
-            this._isGuest = localStorage.getItem(IS_GUEST_KEY) === "true";
-        }
-        catch (e) {} // don't care
-    }
-
-    setPeekedRoom(roomId) {
-        // we purposefully do not persist this to local storage as peeking is
-        // entirely transient.
-        this._peekedRoomId = roomId;
-    }
-
-    getPeekedRoom() {
-        return this._peekedRoomId;
-    }
-
-    isGuest() {
-        return this._isGuest;
-    }
-
-    markAsGuest(isGuest) {
-        try {
-            this.localStorage.setItem(IS_GUEST_KEY, JSON.stringify(isGuest));
-        } catch (e) {} // ignore. If they don't do LS, they'll just get a new account.
-        this._isGuest = isGuest;
-        this._peekedRoomId = null;
-    }
-}
-
-module.exports = GuestAccess;

src/HtmlUtils.js

@@ -20,6 +20,11 @@ var React = require('react');
 var sanitizeHtml = require('sanitize-html');
 var highlight = require('highlight.js');
 var linkifyMatrix = require('./linkify-matrix');
+import escape from 'lodash/escape';
+import emojione from 'emojione';
+import classNames from 'classnames';
+
+const EMOJI_REGEX = new RegExp(emojione.unicodeRegexp+"+", "gi");
 
 var sanitizeHtmlParams = {
     allowedTags: [
@@ -28,7 +33,7 @@ var sanitizeHtmlParams = {
         // deliberately no h1/h2 to stop people shouting.
         'h3', 'h4', 'h5', 'h6', 'blockquote', 'p', 'a', 'ul', 'ol',
         'nl', 'li', 'b', 'i', 'u', 'strong', 'em', 'strike', 'code', 'hr', 'br', 'div',
-        'table', 'thead', 'caption', 'tbody', 'tr', 'th', 'td', 'pre'
+        'table', 'thead', 'caption', 'tbody', 'tr', 'th', 'td', 'pre', 'img',
     ],
     allowedAttributes: {
         // custom ones first:
@@ -42,7 +47,9 @@ var sanitizeHtmlParams = {
     selfClosing: [ 'img', 'br', 'hr', 'area', 'base', 'basefont', 'input', 'link', 'meta' ],
     // URL schemes we permit
     allowedSchemes: [ 'http', 'https', 'ftp', 'mailto' ],
-    allowedSchemesByTag: {},
+    allowedSchemesByTag: {
+        img: [ 'data' ],
+    },
     
     transformTags: { // custom to matrix
         // add blank targets to all hyperlinks except vector URLs
@@ -179,46 +186,49 @@ module.exports = {
      *
      * highlights: optional list of words to highlight, ordered by longest word first
      *
-     * opts.highlightLink: optional href to add to highlights
+     * opts.highlightLink: optional href to add to highlighted words
      */
     bodyToHtml: function(content, highlights, opts) {
         opts = opts || {};
 
         var isHtml = (content.format === "org.matrix.custom.html");
+        let body = isHtml ? content.formatted_body : escape(content.body);
 
         var safeBody;
-        if (isHtml) {
-            // XXX: We sanitize the HTML whilst also highlighting its text nodes, to avoid accidentally trying
-            // to highlight HTML tags themselves.  However, this does mean that we don't highlight textnodes which
-            // are interrupted by HTML tags (not that we did before) - e.g. foo<span/>bar won't get highlighted
-            // by an attempt to search for 'foobar'.  Then again, the search query probably wouldn't work either
-            try {
-                if (highlights && highlights.length > 0) {
-                    var highlighter = new HtmlHighlighter("mx_EventTile_searchHighlight", opts.highlightLink);
-                    var safeHighlights = highlights.map(function(highlight) {
-                        return sanitizeHtml(highlight, sanitizeHtmlParams);
-                    });
-                    // XXX: hacky bodge to temporarily apply a textFilter to the sanitizeHtmlParams structure.
-                    sanitizeHtmlParams.textFilter = function(safeText) {
-                        return highlighter.applyHighlights(safeText, safeHighlights).join('');
-                    };
-                }
-                safeBody = sanitizeHtml(content.formatted_body, sanitizeHtmlParams);
-            }
-            finally {
-                delete sanitizeHtmlParams.textFilter;
-            }
-            return <span className="markdown-body" dangerouslySetInnerHTML={{ __html: safeBody }} />;
-        } else {
-            safeBody = content.body;
+        // XXX: We sanitize the HTML whilst also highlighting its text nodes, to avoid accidentally trying
+        // to highlight HTML tags themselves.  However, this does mean that we don't highlight textnodes which
+        // are interrupted by HTML tags (not that we did before) - e.g. foo<span/>bar won't get highlighted
+        // by an attempt to search for 'foobar'.  Then again, the search query probably wouldn't work either
+        try {
             if (highlights && highlights.length > 0) {
-                var highlighter = new TextHighlighter("mx_EventTile_searchHighlight", opts.highlightLink);
-                return highlighter.applyHighlights(safeBody, highlights);
-            }
-            else {
-                return safeBody;
+                var highlighter = new HtmlHighlighter("mx_EventTile_searchHighlight", opts.highlightLink);
+                var safeHighlights = highlights.map(function(highlight) {
+                    return sanitizeHtml(highlight, sanitizeHtmlParams);
+                });
+                // XXX: hacky bodge to temporarily apply a textFilter to the sanitizeHtmlParams structure.
+                sanitizeHtmlParams.textFilter = function(safeText) {
+                    return highlighter.applyHighlights(safeText, safeHighlights).join('');
+                };
             }
+            safeBody = sanitizeHtml(body, sanitizeHtmlParams);
+            emojione.imageType = 'svg';
+            safeBody = emojione.unicodeToImage(safeBody);
         }
+        finally {
+            delete sanitizeHtmlParams.textFilter;
+        }
+
+        EMOJI_REGEX.lastIndex = 0;
+        let contentBodyTrimmed = content.body.trim();
+        let match = EMOJI_REGEX.exec(contentBodyTrimmed);
+        let emojiBody = match && match[0] && match[0].length === contentBodyTrimmed.length;
+
+        const className = classNames({
+            'mx_EventTile_body': true,
+            'mx_EventTile_bigEmoji': emojiBody,
+            'markdown-body': isHtml,
+        });
+        return <span className={className} dangerouslySetInnerHTML={{ __html: safeBody }} />;
     },
 
     highlightDom: function(element) {
@@ -228,5 +238,11 @@ module.exports = {
         }
     },
 
-}
+    emojifyText: function(text) {
+        emojione.imageType = 'svg';
+        return {
+            __html: emojione.unicodeToImage(escape(text)),
+        };
+    },
+};
 

src/Lifecycle.js

@@ -0,0 +1,110 @@
+/*
+Copyright 2015, 2016 OpenMarket Ltd
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+import MatrixClientPeg from './MatrixClientPeg';
+import Notifier from './Notifier'
+import UserActivity from './UserActivity';
+import Presence from './Presence';
+import dis from './dispatcher';
+
+/**
+ * Transitions to a logged-in state using the given credentials
+ * @param {MatrixClientCreds} credentials The credentials to use
+ */
+function setLoggedIn(credentials) {
+    credentials.guest = Boolean(credentials.guest);
+    console.log("onLoggedIn => %s (guest=%s)", credentials.userId, credentials.guest);
+    MatrixClientPeg.replaceUsingCreds(credentials);
+
+    dis.dispatch({action: 'on_logged_in'});
+
+    startMatrixClient();
+}
+
+/**
+ * Logs the current session out and transitions to the logged-out state
+ */
+function logout() {
+    if (MatrixClientPeg.get().isGuest()) {
+        // logout doesn't work for guest sessions
+        // Also we sometimes want to re-log in a guest session
+        // if we abort the login
+        _onLoggedOut();
+        return;
+    }
+
+    return MatrixClientPeg.get().logout().then(_onLoggedOut,
+        (err) => {
+            // Just throwing an error here is going to be very unhelpful
+            // if you're trying to log out because your server's down and
+            // you want to log into a different server, so just forget the
+            // access token. It's annoying that this will leave the access
+            // token still valid, but we should fix this by having access
+            // tokens expire (and if you really think you've been compromised,
+            // change your password).
+            console.log("Failed to call logout API: token will not be invalidated");
+            _onLoggedOut();
+        }
+    );
+}
+
+/**
+ * Starts the matrix client and all other react-sdk services that
+ * listen for events while a session is logged in.
+ */
+function startMatrixClient() {
+    // dispatch this before starting the matrix client: it's used
+    // to add listeners for the 'sync' event so otherwise we'd have
+    // a race condition (and we need to dispatch synchronously for this
+    // to work).
+    dis.dispatch({action: 'will_start_client'}, true);
+
+    Notifier.start();
+    UserActivity.start();
+    Presence.start();
+
+    MatrixClientPeg.start();
+}
+
+function _onLoggedOut() {
+    if (window.localStorage) {
+        const hsUrl = window.localStorage.getItem("mx_hs_url");
+        const isUrl = window.localStorage.getItem("mx_is_url");
+        window.localStorage.clear();
+        // preserve our HS & IS URLs for convenience
+        // N.B. we cache them in hsUrl/isUrl and can't really inline them
+        // as getCurrentHsUrl() may call through to localStorage.
+        if (hsUrl) window.localStorage.setItem("mx_hs_url", hsUrl);
+        if (isUrl) window.localStorage.setItem("mx_is_url", isUrl);
+    }
+    _stopMatrixClient();
+
+    dis.dispatch({action: 'on_logged_out'});
+}
+
+// stop all the background processes related to the current client
+function _stopMatrixClient() {
+    Notifier.stop();
+    UserActivity.stop();
+    Presence.stop();
+    MatrixClientPeg.get().stopClient();
+    MatrixClientPeg.get().removeAllListeners();
+    MatrixClientPeg.unset();
+}
+
+module.exports = {
+    setLoggedIn, logout, startMatrixClient
+};

src/MatrixClientPeg.js

@@ -16,13 +16,10 @@ limitations under the License.
 
 'use strict';
 
-// A thing that holds your Matrix Client
-var Matrix = require("matrix-js-sdk");
-var GuestAccess = require("./GuestAccess");
+import Matrix from 'matrix-js-sdk';
+import utils from 'matrix-js-sdk/lib/utils';
 
-var matrixClient = null;
-
-var localStorage = window.localStorage;
+const localStorage = window.localStorage;
 
 function deviceId() {
     // XXX: is Math.random()'s deterministicity a problem here?
@@ -35,97 +32,71 @@ function deviceId() {
     return id;
 }
 
-function createClientForPeg(hs_url, is_url, user_id, access_token, guestAccess) {
-    var opts = {
-        baseUrl: hs_url,
-        idBaseUrl: is_url,
-        accessToken: access_token,
-        userId: user_id,
-        timelineSupport: true,
-    };
-
-    if (localStorage) {
-        opts.sessionStore = new Matrix.WebStorageSessionStore(localStorage);
-        opts.deviceId = deviceId();
-    }
-
-    matrixClient = Matrix.createClient(opts);
-
-    // we're going to add eventlisteners for each matrix event tile, so the
-    // potential number of event listeners is quite high.
-    matrixClient.setMaxListeners(500);
-
-    if (guestAccess) {
-        console.log("Guest: %s", guestAccess.isGuest());
-        matrixClient.setGuest(guestAccess.isGuest());
-        var peekedRoomId = guestAccess.getPeekedRoom();
-        if (peekedRoomId) {
-            console.log("Peeking in room %s", peekedRoomId);
-            matrixClient.peekInRoom(peekedRoomId);
-        }
-    }
+interface MatrixClientCreds {
+    homeserverUrl: string,
+    identityServerUrl: string,
+    userId: string,
+    accessToken: string,
+    guest: boolean,
 }
 
-if (localStorage) {
-    var hs_url = localStorage.getItem("mx_hs_url");
-    var is_url = localStorage.getItem("mx_is_url") || 'https://matrix.org';
-    var access_token = localStorage.getItem("mx_access_token");
-    var user_id = localStorage.getItem("mx_user_id");
-    var guestAccess = new GuestAccess(localStorage);
-    if (access_token && user_id && hs_url) {
-        console.log("Restoring session for %s", user_id);
-        createClientForPeg(hs_url, is_url, user_id, access_token, guestAccess);
-    }
-    else {
-        console.log("Session not found.");
-    }
-}
+/**
+ * Wrapper object for handling the js-sdk Matrix Client object in the react-sdk
+ * Handles the creation/initialisation of client objects.
+ * This module provides a singleton instance of this class so the 'current'
+ * Matrix Client object is available easily.
+ */
+class MatrixClientPeg {
+    constructor() {
+        this.matrixClient = null;
 
-class MatrixClient {
-
-    constructor(guestAccess) {
-        this.guestAccess = guestAccess;
+        // These are the default options used when when the
+        // client is started in 'start'. These can be altered
+        // at any time up to after the 'will_start_client'
+        // event is finished processing.
+        this.opts = {
+            initialSyncLimit: 20,
+        };
     }
 
-    get() {
-        return matrixClient;
+    get(): MatrixClient {
+        return this.matrixClient;
     }
 
     unset() {
-        matrixClient = null;
+        this.matrixClient = null;
     }
 
-    // FIXME, XXX: this all seems very convoluted :(
-    //
-    // if we replace the singleton using URLs we bypass our createClientForPeg()
-    // global helper function... but if we replace it using
-    // an access_token we don't?
-    //
-    // Why do we have this peg wrapper rather than just MatrixClient.get()?
-    // Why do we name MatrixClient as MatrixClientPeg when we export it?
-    //
-    // -matthew
-
+    /**
+     * Replace this MatrixClientPeg's client with a client instance that has
+     * Home Server / Identity Server URLs but no credentials
+     */
     replaceUsingUrls(hs_url, is_url) {
-        matrixClient = Matrix.createClient({
-            baseUrl: hs_url,
-            idBaseUrl: is_url
-        });
-
-        // XXX: factor this out with the localStorage setting in replaceUsingAccessToken
-        if (localStorage) {
-            try {
-                localStorage.setItem("mx_hs_url", hs_url);
-                localStorage.setItem("mx_is_url", is_url);
-            } catch (e) {
-                console.warn("Error using local storage: can't persist HS/IS URLs!");
-            }
-        } else {
-            console.warn("No local storage available: can't persist HS/IS URLs!");
-        }
+        this._replaceClient(hs_url, is_url);
     }
 
-    replaceUsingAccessToken(hs_url, is_url, user_id, access_token, isGuest) {
+    /**
+     * Replace this MatrixClientPeg's client with a client instance that has
+     * Home Server / Identity Server URLs and active credentials
+     */
+    replaceUsingCreds(creds: MatrixClientCreds) {
+        this._replaceClient(
+            creds.homeserverUrl,
+            creds.identityServerUrl,
+            creds.userId,
+            creds.accessToken,
+            creds.guest,
+        );
+    }
+
+    start() {
+        const opts = utils.deepCopy(this.opts);
+        // the react sdk doesn't work without this, so don't allow
+        opts.pendingEventOrdering = "detached";
+        this.get().startClient(opts);
+    }
+
+    _replaceClient(hs_url, is_url, user_id, access_token, isGuest) {
         if (localStorage) {
             try {
                 localStorage.clear();
@@ -133,15 +104,19 @@ class MatrixClient {
                 console.warn("Error clearing local storage", e);
             }
         }
-        this.guestAccess.markAsGuest(Boolean(isGuest));
-        createClientForPeg(hs_url, is_url, user_id, access_token, this.guestAccess);
+        this._createClient(hs_url, is_url, user_id, access_token, isGuest);
+
         if (localStorage) {
             try {
                 localStorage.setItem("mx_hs_url", hs_url);
                 localStorage.setItem("mx_is_url", is_url);
-                localStorage.setItem("mx_user_id", user_id);
-                localStorage.setItem("mx_access_token", access_token);
-                console.log("Session persisted for %s", user_id);
+
+                if (user_id !== undefined && access_token !== undefined) {
+                    localStorage.setItem("mx_user_id", user_id);
+                    localStorage.setItem("mx_access_token", access_token);
+                    localStorage.setItem("mx_is_guest", JSON.stringify(isGuest));
+                    console.log("Session persisted for %s", user_id);
+                }
             } catch (e) {
                 console.warn("Error using local storage: can't persist session!", e);
             }
@@ -149,9 +124,68 @@ class MatrixClient {
             console.warn("No local storage available: can't persist session!");
         }
     }
+
+    getCredentials(): MatrixClientCreds {
+        return {
+            homeserverUrl: this.matrixClient.baseUrl,
+            identityServerUrl: this.matrixClient.idBaseUrl,
+            userId: this.matrixClient.credentials.userId,
+            accessToken: this.matrixClient.getAccessToken(),
+            guest: this.matrixClient.isGuest(),
+        };
+    }
+
+    tryRestore() {
+        if (localStorage) {
+            const hs_url = localStorage.getItem("mx_hs_url");
+            const is_url = localStorage.getItem("mx_is_url") || 'https://matrix.org';
+            const access_token = localStorage.getItem("mx_access_token");
+            const user_id = localStorage.getItem("mx_user_id");
+
+            let is_guest;
+            if (localStorage.getItem("mx_is_guest") !== null) {
+                is_guest = localStorage.getItem("mx_is_guest") === "true";
+            } else {
+                // legacy key name
+                is_guest = localStorage.getItem("matrix-is-guest") === "true";
+            }
+
+            if (access_token && user_id && hs_url) {
+                console.log("Restoring session for %s", user_id);
+                this._createClient(hs_url, is_url, user_id, access_token);
+                this.matrixClient.setGuest(is_guest);
+            } else {
+                console.log("Session not found.");
+            }
+        }
+    }
+
+    _createClient(hs_url, is_url, user_id, access_token, isGuest) {
+        var opts = {
+            baseUrl: hs_url,
+            idBaseUrl: is_url,
+            accessToken: access_token,
+            userId: user_id,
+            timelineSupport: true,
+        };
+
+        if (localStorage) {
+            opts.sessionStore = new Matrix.WebStorageSessionStore(localStorage);
+            opts.deviceId = deviceId();
+        }
+
+        this.matrixClient = Matrix.createClient(opts);
+
+        // we're going to add eventlisteners for each matrix event tile, so the
+        // potential number of event listeners is quite high.
+        this.matrixClient.setMaxListeners(500);
+
+        this.matrixClient.setGuest(Boolean(isGuest));
+    }
 }
 
-if (!global.mxMatrixClient) {
-    global.mxMatrixClient = new MatrixClient(new GuestAccess(localStorage));
+if (!global.mxMatrixClientPeg) {
+    global.mxMatrixClientPeg = new MatrixClientPeg();
+    global.mxMatrixClientPeg.tryRestore();
 }
-module.exports = global.mxMatrixClient;
+module.exports = global.mxMatrixClientPeg;

src/MatrixTools.js

@@ -24,30 +24,5 @@ module.exports = {
     getDisplayAliasForRoom: function(room) {
         return room.getCanonicalAlias() || room.getAliases()[0];
     },
-
-    /**
-     * Given a list of room objects, return the room which has the given alias,
-     * else null.
-     */
-    getRoomForAlias: function(rooms, room_alias) {
-        var room;
-        for (var i = 0; i < rooms.length; i++) {
-            var aliasEvents = rooms[i].currentState.getStateEvents(
-                "m.room.aliases"
-            );
-            for (var j = 0; j < aliasEvents.length; j++) {
-                var aliases = aliasEvents[j].getContent().aliases || [];
-                for (var k = 0; k < aliases.length; k++) {
-                    if (aliases[k] === room_alias) {
-                        room = rooms[i];
-                        break;
-                    }
-                }
-                if (room) { break; }
-            }
-            if (room) { break; }
-        }
-        return room || null;
-    }
 }
 

src/PasswordReset.js

@@ -48,11 +48,13 @@ class PasswordReset {
      */
     resetPassword(emailAddress, newPassword) {
         this.password = newPassword;
-        return this.client.requestEmailToken(emailAddress, this.clientSecret, 1).then((res) => {
+        return this.client.requestPasswordEmailToken(emailAddress, this.clientSecret, 1).then((res) => {
             this.sessionId = res.sid;
             return res;
         }, function(err) {
-            if (err.httpStatus) {
+            if (err.errcode == 'M_THREEPID_NOT_FOUND') {
+                 err.message = "This email address was not found";
+            } else if (err.httpStatus) {
                 err.message = err.message + ` (Status ${err.httpStatus})`;
             }
             throw err;

src/RichText.js

@@ -1,16 +1,22 @@
+import React from 'react';
 import {
     Editor,
+    EditorState,
     Modifier,
     ContentState,
+    ContentBlock,
     convertFromHTML,
     DefaultDraftBlockRenderMap,
     DefaultDraftInlineStyle,
-    CompositeDecorator
+    CompositeDecorator,
+    SelectionState,
+    Entity,
 } from 'draft-js';
 import * as sdk from  './index';
+import * as emojione from 'emojione';
 
 const BLOCK_RENDER_MAP = DefaultDraftBlockRenderMap.set('unstyled', {
-    element: 'span'
+    element: 'span',
     /*
      draft uses <div> by default which we don't really like, so we're using <span>
      this is probably not a good idea since <span> is not a block level element but
@@ -23,17 +29,18 @@ const STYLES = {
     CODE: 'code',
     ITALIC: 'em',
     STRIKETHROUGH: 's',
-    UNDERLINE: 'u'
+    UNDERLINE: 'u',
 };
 
 const MARKDOWN_REGEX = {
     LINK: /(?:\[([^\]]+)\]\(([^\)]+)\))|\<(\w+:\/\/[^\>]+)\>/g,
     ITALIC: /([\*_])([\w\s]+?)\1/g,
-    BOLD: /([\*_])\1([\w\s]+?)\1\1/g
+    BOLD: /([\*_])\1([\w\s]+?)\1\1/g,
 };
 
 const USERNAME_REGEX = /@\S+:\S+/g;
 const ROOM_REGEX = /#\S+:\S+/g;
+const EMOJI_REGEX = new RegExp(emojione.unicodeRegexp, 'g');
 
 export function contentStateToHTML(contentState: ContentState): string {
     return contentState.getBlockMap().map((block) => {
@@ -60,7 +67,7 @@ export function contentStateToHTML(contentState: ContentState): string {
         let result = `<${elem}>${content.join('')}</${elem}>`;
 
         // dirty hack because we don't want block level tags by default, but breaks
-        if(elem === 'span')
+        if (elem === 'span')
             result += '<br />';
         return result;
     }).join('');
@@ -70,6 +77,48 @@ export function HTMLtoContentState(html: string): ContentState {
     return ContentState.createFromBlockArray(convertFromHTML(html));
 }
 
+function unicodeToEmojiUri(str) {
+    let replaceWith, unicode, alt;
+    if ((!emojione.unicodeAlt) || (emojione.sprites)) {
+        // if we are using the shortname as the alt tag then we need a reversed array to map unicode code point to shortnames
+        let mappedUnicode = emojione.mapUnicodeToShort();
+    }
+
+    str = str.replace(emojione.regUnicode, function(unicodeChar) {
+        if ( (typeof unicodeChar === 'undefined') || (unicodeChar === '') || (!(unicodeChar in emojione.jsEscapeMap)) ) {
+            // if the unicodeChar doesnt exist just return the entire match
+            return unicodeChar;
+        } else {
+            // get the unicode codepoint from the actual char
+            unicode = emojione.jsEscapeMap[unicodeChar];
+            return emojione.imagePathSVG+unicode+'.svg'+emojione.cacheBustParam;
+        }
+    });
+
+    return str;
+}
+
+// Workaround for https://github.com/facebook/draft-js/issues/414
+let emojiDecorator = {
+    strategy: (contentBlock, callback) => {
+        findWithRegex(EMOJI_REGEX, contentBlock, callback);
+    },
+    component: (props) => {
+        let uri = unicodeToEmojiUri(props.children[0].props.text);
+        let shortname = emojione.toShort(props.children[0].props.text);
+        let style = {
+            display: 'inline-block',
+            width: '1em',
+            maxHeight: '1em',
+            background: `url(${uri})`,
+            backgroundSize: 'contain',
+            backgroundPosition: 'center center',
+            overflow: 'hidden',
+        };
+        return (<span title={shortname} style={style}><span style={{opacity: 0}}>{props.children}</span></span>);
+    },
+};
+
 /**
  * Returns a composite decorator which has access to provided scope.
  */
@@ -85,9 +134,10 @@ export function getScopedRTDecorators(scope: any): CompositeDecorator {
             // unused until we make these decorators immutable (autocomplete needed)
             let name = member ? member.name : null;
             let avatar = member ? <MemberAvatar member={member} width={16} height={16}/> : null;
-            return <span className="mx_UserPill">{avatar} {props.children}</span>;
+            return <span className="mx_UserPill">{avatar}{props.children}</span>;
         }
     };
+    
     let roomDecorator = {
         strategy: (contentBlock, callback) => {
             findWithRegex(ROOM_REGEX, contentBlock, callback);
@@ -97,7 +147,7 @@ export function getScopedRTDecorators(scope: any): CompositeDecorator {
         }
     };
 
-    return [usernameDecorator, roomDecorator];
+    return [usernameDecorator, roomDecorator, emojiDecorator];
 }
 
 export function getScopedMDDecorators(scope: any): CompositeDecorator {
@@ -123,6 +173,7 @@ export function getScopedMDDecorators(scope: any): CompositeDecorator {
             </a>
         )
     });
+    markdownDecorators.push(emojiDecorator);
 
     return markdownDecorators;
 }
@@ -153,7 +204,7 @@ export function modifyText(contentState: ContentState, rangeToReplace: Selection
         text = "";
 
 
-    for(let currentKey = startKey;
+    for (let currentKey = startKey;
             currentKey && currentKey !== endKey;
             currentKey = contentState.getKeyAfter(currentKey)) {
         let blockText = getText(currentKey);
@@ -168,3 +219,106 @@ export function modifyText(contentState: ContentState, rangeToReplace: Selection
 
     return Modifier.replaceText(contentState, rangeToReplace, modifyFn(text), inlineStyle, entityKey);
 }
+
+/**
+ * Computes the plaintext offsets of the given SelectionState.
+ * Note that this inherently means we make assumptions about what that means (no separator between ContentBlocks, etc)
+ * Used by autocomplete to show completions when the current selection lies within, or at the edges of a command.
+ */
+export function selectionStateToTextOffsets(selectionState: SelectionState,
+                                            contentBlocks: Array<ContentBlock>): {start: number, end: number} {
+    let offset = 0, start = 0, end = 0;
+    for (let block of contentBlocks) {
+        if (selectionState.getStartKey() === block.getKey()) {
+            start = offset + selectionState.getStartOffset();
+        }
+        if (selectionState.getEndKey() === block.getKey()) {
+            end = offset + selectionState.getEndOffset();
+            break;
+        }
+        offset += block.getLength();
+    }
+
+    return {
+        start,
+        end,
+    };
+}
+
+export function textOffsetsToSelectionState({start, end}: {start: number, end: number},
+                                            contentBlocks: Array<ContentBlock>): SelectionState {
+    let selectionState = SelectionState.createEmpty();
+
+    for (let block of contentBlocks) {
+        let blockLength = block.getLength();
+
+        if (start !== -1 && start < blockLength) {
+            selectionState = selectionState.merge({
+                anchorKey: block.getKey(),
+                anchorOffset: start,
+            });
+            start = -1;
+        } else {
+            start -= blockLength;
+        }
+
+        if (end !== -1 && end <= blockLength) {
+            selectionState = selectionState.merge({
+                focusKey: block.getKey(),
+                focusOffset: end,
+            });
+            end = -1;
+        } else {
+            end -= blockLength;
+        }
+    }
+
+    return selectionState;
+}
+
+// modified version of https://github.com/draft-js-plugins/draft-js-plugins/blob/master/draft-js-emoji-plugin/src/modifiers/attachImmutableEntitiesToEmojis.js
+export function attachImmutableEntitiesToEmoji(editorState: EditorState): EditorState {
+    const contentState = editorState.getCurrentContent();
+    const blocks = contentState.getBlockMap();
+    let newContentState = contentState;
+
+    blocks.forEach((block) => {
+        const plainText = block.getText();
+
+        const addEntityToEmoji = (start, end) => {
+            const existingEntityKey = block.getEntityAt(start);
+            if (existingEntityKey) {
+                // avoid manipulation in case the emoji already has an entity
+                const entity = Entity.get(existingEntityKey);
+                if (entity && entity.get('type') === 'emoji') {
+                    return;
+                }
+            }
+
+            const selection = SelectionState.createEmpty(block.getKey())
+                .set('anchorOffset', start)
+                .set('focusOffset', end);
+            const emojiText = plainText.substring(start, end);
+            const entityKey = Entity.create('emoji', 'IMMUTABLE', { emojiUnicode: emojiText });
+            newContentState = Modifier.replaceText(
+                newContentState,
+                selection,
+                emojiText,
+                null,
+                entityKey,
+            );
+        };
+
+        findWithRegex(EMOJI_REGEX, block, addEntityToEmoji);
+    });
+
+    if (!newContentState.equals(contentState)) {
+        return EditorState.push(
+            editorState,
+            newContentState,
+            'convert-to-immutable-emojis',
+        );
+    }
+
+    return editorState;
+}

src/Signup.js

@@ -152,7 +152,10 @@ class Register extends Signup {
                         console.log("Active flow => %s", JSON.stringify(flow));
                         var flowStage = self.firstUncompletedStage(flow);
                         if (flowStage != self.activeStage) {
-                            return self.startStage(flowStage);
+                            return self.startStage(flowStage).catch(function(err) {
+                                self.setStep('START');
+                                throw err;
+                            });
                         }
                     }
                 }

src/SignupStages.js

@@ -170,7 +170,7 @@ class EmailIdentityStage extends Stage {
                        encodeURIComponent(this.signupInstance.getServerData().session);
 
         var self = this;
-        return this.client.requestEmailToken(
+        return this.client.requestRegisterEmailToken(
             this.signupInstance.email,
             this.clientSecret,
             1, // TODO: Multiple send attempts?
@@ -186,8 +186,8 @@ class EmailIdentityStage extends Stage {
             var e = {
                 isFatal: true
             };
-            if (error.errcode == 'THREEPID_IN_USE') {
-                e.message = "Email in use";
+            if (error.errcode == 'M_THREEPID_IN_USE') {
+                e.message = "This email address is already registered";
             } else {
                 e.message = 'Unable to contact the given identity server';
             }

src/SlashCommands.js

@@ -17,7 +17,6 @@ limitations under the License.
 var MatrixClientPeg = require("./MatrixClientPeg");
 var MatrixTools = require("./MatrixTools");
 var dis = require("./dispatcher");
-var encryption = require("./encryption");
 var Tinter = require("./Tinter");
 
 
@@ -82,32 +81,13 @@ var commands = {
                 return success(
                     MatrixClientPeg.get().setRoomAccountData(
                         room_id, "org.matrix.room.color_scheme", colorScheme
-                    )                    
+                    )
                 );
             }
         }
         return reject(this.getUsage());
     }),
 
-    encrypt: new Command("encrypt", "<on|off>", function(room_id, args) {
-        if (args == "on") {
-            var client = MatrixClientPeg.get();
-            var members = client.getRoom(room_id).currentState.members;
-            var user_ids = Object.keys(members);
-            return success(
-                encryption.enableEncryption(client, room_id, user_ids)
-            );
-        }
-        if (args == "off") {
-            var client = MatrixClientPeg.get();
-            return success(
-                encryption.disableEncryption(client, room_id)
-            );
-
-        }
-        return reject(this.getUsage());
-    }),
-
     // Change the room topic
     topic: new Command("topic", "<topic>", function(room_id, args) {
         if (args) {
@@ -132,46 +112,25 @@ var commands = {
     }),
 
     // Join a room
-    join: new Command("join", "<room_alias>", function(room_id, args) {
+    join: new Command("join", "#alias:domain", function(room_id, args) {
         if (args) {
             var matches = args.match(/^(\S+)$/);
             if (matches) {
                 var room_alias = matches[1];
                 if (room_alias[0] !== '#') {
-                    return reject("Usage: /join #alias:domain");
+                    return reject(this.getUsage());
                 }
                 if (!room_alias.match(/:/)) {
                     room_alias += ':' + MatrixClientPeg.get().getDomain();
                 }
 
-                // Try to find a room with this alias
-                // XXX: do we need to do this? Doesn't the JS SDK suppress duplicate attempts to join the same room?
-                var foundRoom = MatrixTools.getRoomForAlias(
-                    MatrixClientPeg.get().getRooms(),
-                    room_alias
-                );
+                dis.dispatch({
+                    action: 'view_room',
+                    room_alias: room_alias,
+                    auto_join: true,
+                });
 
-                if (foundRoom) { // we've already joined this room, view it if it's not archived.
-                    var me = foundRoom.getMember(MatrixClientPeg.get().credentials.userId);
-                    if (me && me.membership !== "leave") {
-                        dis.dispatch({
-                            action: 'view_room',
-                            room_id: foundRoom.roomId
-                        });
-                        return success();                        
-                    }
-                }
-
-                // otherwise attempt to join this alias.
-                return success(
-                    MatrixClientPeg.get().joinRoom(room_alias).then(
-                    function(room) {
-                        dis.dispatch({
-                            action: 'view_room',
-                            room_id: room.roomId
-                        });
-                    })
-                );
+                return success();
             }
         }
         return reject(this.getUsage());

src/TabComplete.js

@@ -13,7 +13,10 @@ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 See the License for the specific language governing permissions and
 limitations under the License.
 */
-var Entry = require("./TabCompleteEntries").Entry;
+
+import { Entry, MemberEntry, CommandEntry } from './TabCompleteEntries';
+import SlashCommands from './SlashCommands';
+import MatrixClientPeg from './MatrixClientPeg';
 
 const DELAY_TIME_MS = 1000;
 const KEY_TAB = 9;
@@ -45,23 +48,39 @@ class TabComplete {
         this.isFirstWord = false; // true if you tab-complete on the first word
         this.enterTabCompleteTimerId = null;
         this.inPassiveMode = false;
+
+        // Map tracking ordering of the room members.
+        // userId: integer, highest comes first.
+        this.memberTabOrder = {};
+
+        // monotonically increasing counter used for tracking ordering of members
+        this.memberOrderSeq = 0;
     }
 
     /**
-     * @param {Entry[]} completeList
+     * Call this when a a UI element representing a tab complete entry has been clicked
+     * @param {entry} The entry that was clicked
      */
-    setCompletionList(completeList) {
-        this.list = completeList;
+    onEntryClick(entry) {
         if (this.opts.onClickCompletes) {
-            // assign onClick listeners for each entry to complete the text
-            this.list.forEach((l) => {
-                l.onClick = () => {
-                    this.completeTo(l);
-                }
-            });
+            this.completeTo(entry);
         }
     }
 
+    loadEntries(room) {
+        this._makeEntries(room);
+        this._initSorting(room);
+        this._sortEntries();
+    }
+
+    onMemberSpoke(member) {
+        if (this.memberTabOrder[member.userId] === undefined) {
+            this.list.push(new MemberEntry(member));
+        }
+        this.memberTabOrder[member.userId] = this.memberOrderSeq++;
+        this._sortEntries();
+    }
+
     /**
      * @param {DOMElement}
      */
@@ -307,6 +326,54 @@ class TabComplete {
             this.opts.onStateChange(this.completing);
         }
     }
+
+    _sortEntries() {
+        // largest comes first
+        const KIND_ORDER = {
+            command: 1,
+            member: 2,
+        };
+
+        this.list.sort((a, b) => {
+            const kindOrderDifference = KIND_ORDER[b.kind] - KIND_ORDER[a.kind];
+            if (kindOrderDifference != 0) {
+                return kindOrderDifference;
+            }
+
+            if (a.kind == 'member') {
+                let orderA = this.memberTabOrder[a.member.userId];
+                let orderB = this.memberTabOrder[b.member.userId];
+                if (orderA === undefined) orderA = -1;
+                if (orderB === undefined) orderB = -1;
+
+                return orderB - orderA;
+            }
+
+            // anything else we have no ordering for
+            return 0;
+        });
+    }
+
+    _makeEntries(room) {
+        const myUserId = MatrixClientPeg.get().credentials.userId;
+
+        const members = room.getJoinedMembers().filter(function(member) {
+            if (member.userId !== myUserId) return true;
+        });
+
+        this.list = MemberEntry.fromMemberList(members).concat(
+            CommandEntry.fromCommands(SlashCommands.getCommandList())
+        );
+    }
+
+    _initSorting(room) {
+        this.memberTabOrder = {};
+        this.memberOrderSeq = 0;
+
+        for (const ev of room.getLiveTimeline().getEvents()) {
+            this.memberTabOrder[ev.getSender()] = this.memberOrderSeq++;
+        }
+    }
 };
 
 module.exports = TabComplete;

src/TabCompleteEntries.js

@@ -69,6 +69,7 @@ class Entry {
 class CommandEntry extends Entry {
     constructor(cmd, cmdWithArgs) {
         super(cmdWithArgs);
+        this.kind = 'command';
         this.cmd = cmd;
     }
 
@@ -95,6 +96,7 @@ class MemberEntry extends Entry {
     constructor(member) {
         super(member.name || member.userId);
         this.member = member;
+        this.kind = 'member';
     }
 
     getImageJsx() {
@@ -114,24 +116,7 @@ class MemberEntry extends Entry {
 }
 
 MemberEntry.fromMemberList = function(members) {
-    return members.sort(function(a, b) {
-        var userA = a.user;
-        var userB = b.user;
-        if (userA && !userB) {
-            return -1; // a comes first
-        }
-        else if (!userA && userB) {
-            return 1; // b comes first
-        }
-        else if (!userA && !userB) {
-            return 0; // don't care
-        }
-        else { // both User objects exist
-            var lastActiveAgoA = userA.lastActiveAgo || Number.MAX_SAFE_INTEGER;
-            var lastActiveAgoB = userB.lastActiveAgo || Number.MAX_SAFE_INTEGER;
-            return lastActiveAgoA - lastActiveAgoB;
-        }
-    }).map(function(m) {
+    return members.map(function(m) {
         return new MemberEntry(m);
     });
 }

src/UserSettingsStore.js

@@ -113,6 +113,35 @@ module.exports = {
         });
     },
 
+    getUrlPreviewsDisabled: function() {
+        var event = MatrixClientPeg.get().getAccountData("org.matrix.preview_urls");
+        return (event && event.getContent().disable);
+    },
+
+    setUrlPreviewsDisabled: function(disabled) {
+        // FIXME: handle errors
+        return MatrixClientPeg.get().setAccountData("org.matrix.preview_urls", {
+            disable: disabled
+        });
+    },
+
+    getSyncedSettings: function() {
+        var event = MatrixClientPeg.get().getAccountData("im.vector.web.settings");
+        return event ? event.getContent() : {};
+    },
+
+    getSyncedSetting: function(type) {
+        var settings = this.getSyncedSettings();
+        return settings[type];
+    },
+
+    setSyncedSetting: function(type, value) {
+        var settings = this.getSyncedSettings();
+        settings[type] = value;
+        // FIXME: handle errors
+        return MatrixClientPeg.get().setAccountData("im.vector.web.settings", settings);
+    },
+
     isFeatureEnabled: function(feature: string): boolean {
         return localStorage.getItem(`mx_labs_feature_${feature}`) === 'true';
     },

src/Velociraptor.js

@@ -18,6 +18,19 @@ module.exports = React.createClass({
 
         // optional transition information for changing existing children
         transition: React.PropTypes.object,
+
+        // a list of state objects to apply to each child node in turn
+        startStyles: React.PropTypes.array,
+
+        // a list of transition options from the corresponding startStyle
+        enterTransitionOpts: React.PropTypes.array,
+    },
+
+    getDefaultProps: function() {
+        return {
+            startStyles: [],
+            enterTransitionOpts: [],
+        };
     },
 
     componentWillMount: function() {
@@ -56,56 +69,71 @@ module.exports = React.createClass({
                 }
                 self.children[c.key] = old;
             } else {
-                // new element. If it has a startStyle, use that as the style and go through
+                // new element. If we have a startStyle, use that as the style and go through
                 // the enter animations
-                var newProps = {
-                    ref: self.collectNode.bind(self, c.key)
-                };
-                if (c.props.startStyle && Object.keys(c.props.startStyle).length) {
-                    var startStyle = c.props.startStyle;
-                    if (Array.isArray(startStyle)) {
-                        startStyle = startStyle[0];
-                    }
-                    newProps._restingStyle = c.props.style;
+                var newProps = {};
+                var restingStyle = c.props.style;
+
+                var startStyles = self.props.startStyles;
+                if (startStyles.length > 0) {
+                    var startStyle = startStyles[0]
                     newProps.style = startStyle;
-                    //console.log("mounted@startstyle0: "+JSON.stringify(startStyle));
-                    // apply the enter animations once it's mounted
+                    // console.log("mounted@startstyle0: "+JSON.stringify(startStyle));
                 }
+
+                newProps.ref = (n => self._collectNode(
+                    c.key, n, restingStyle
+                ));
+
                 self.children[c.key] = React.cloneElement(c, newProps);
             }
         });
     },
 
-    collectNode: function(k, node) {
+    /**
+     * called when a child element is mounted/unmounted
+     *
+     * @param {string}     k              key of the child
+     * @param {null|Object} node          On mount: React node. On unmount: null
+     * @param {Object}     restingStyle   final style
+     */
+    _collectNode: function(k, node, restingStyle) {
         if (
             node &&
             this.nodes[k] === undefined &&
-            node.props.startStyle &&
-            Object.keys(node.props.startStyle).length
+            this.props.startStyles.length > 0
         ) {
+            var startStyles = this.props.startStyles;
+            var transitionOpts = this.props.enterTransitionOpts;
             var domNode = ReactDom.findDOMNode(node);
-            var startStyles = node.props.startStyle;
-            var transitionOpts = node.props.enterTransitionOpts;
-            if (!Array.isArray(startStyles)) {
-                startStyles = [ startStyles ];
-                transitionOpts = [ transitionOpts ];
-            }
             // start from startStyle 1: 0 is the one we gave it
             // to start with, so now we animate 1 etc.
             for (var i = 1; i < startStyles.length; ++i) {
                 Velocity(domNode, startStyles[i], transitionOpts[i-1]);
-                //console.log("start: "+JSON.stringify(startStyles[i]));
+                /*
+                console.log("start:",
+                            JSON.stringify(transitionOpts[i-1]),
+                            "->",
+                            JSON.stringify(startStyles[i]),
+                            );
+                */
             }
+
             // and then we animate to the resting state
-            Velocity(domNode, node.props._restingStyle,
+            Velocity(domNode, restingStyle,
                      transitionOpts[i-1])
             .then(() => {
                 // once we've reached the resting state, hide the element if
                 // appropriate
-                domNode.style.visibility = node.props._restingStyle.visibility;
+                domNode.style.visibility = restingStyle.visibility;
             });
 
-            //console.log("enter: "+JSON.stringify(node.props._restingStyle));
+            /*
+            console.log("enter:",
+                        JSON.stringify(transitionOpts[i-1]),
+                        "->",
+                        JSON.stringify(restingStyle));
+            */
         } else if (node === null) {
             // Velocity stores data on elements using the jQuery .data()
             // method, and assumes you'll be using jQuery's .remove() to

src/autocomplete/AutocompleteProvider.js

@@ -0,0 +1,54 @@
+import Q from 'q';
+
+export default class AutocompleteProvider {
+    constructor(commandRegex?: RegExp, fuseOpts?: any) {
+        if(commandRegex) {
+            if(!commandRegex.global) {
+                throw new Error('commandRegex must have global flag set');
+            }
+            this.commandRegex = commandRegex;
+        }
+    }
+
+    /**
+     * Of the matched commands in the query, returns the first that contains or is contained by the selection, or null.
+     */
+    getCurrentCommand(query: string, selection: {start: number, end: number}): ?Array<string> {
+        if (this.commandRegex == null) {
+            return null;
+        }
+
+        this.commandRegex.lastIndex = 0;
+        
+        let match;
+        while ((match = this.commandRegex.exec(query)) != null) {
+            let matchStart = match.index,
+                matchEnd = matchStart + match[0].length;
+            
+            if (selection.start <= matchEnd && selection.end >= matchStart) {
+                return {
+                    command: match,
+                    range: {
+                        start: matchStart,
+                        end: matchEnd,
+                    },
+                };
+            }
+        }
+        return {
+            command: null,
+            range: {
+                start: -1,
+                end: -1,
+            },
+        };
+    }
+
+    getCompletions(query: string, selection: {start: number, end: number}) {
+        return Q.when([]);
+    }
+
+    getName(): string {
+        return 'Default Provider';
+    }
+}

src/autocomplete/Autocompleter.js

@@ -0,0 +1,22 @@
+import CommandProvider from './CommandProvider';
+import DuckDuckGoProvider from './DuckDuckGoProvider';
+import RoomProvider from './RoomProvider';
+import UserProvider from './UserProvider';
+import EmojiProvider from './EmojiProvider';
+
+const PROVIDERS = [
+    UserProvider,
+    CommandProvider,
+    DuckDuckGoProvider,
+    RoomProvider,
+    EmojiProvider,
+].map(completer => completer.getInstance());
+
+export function getCompletions(query: string, selection: {start: number, end: number}) {
+    return PROVIDERS.map(provider => {
+        return {
+            completions: provider.getCompletions(query, selection),
+            provider,
+        };
+    });
+}

src/autocomplete/CommandProvider.js

@@ -0,0 +1,86 @@
+import React from 'react';
+import AutocompleteProvider from './AutocompleteProvider';
+import Q from 'q';
+import Fuse from 'fuse.js';
+import {TextualCompletion} from './Components';
+
+const COMMANDS = [
+    {
+        command: '/me',
+        args: '<message>',
+        description: 'Displays action',
+    },
+    {
+        command: '/ban',
+        args: '<user-id> [reason]',
+        description: 'Bans user with given id',
+    },
+    {
+        command: '/deop',
+        args: '<user-id>',
+        description: 'Deops user with given id',
+    },
+    {
+        command: '/invite',
+        args: '<user-id>',
+        description: 'Invites user with given id to current room'
+    },
+    {
+        command: '/join',
+        args: '<room-alias>',
+        description: 'Joins room with given alias',
+    },
+    {
+        command: '/kick',
+        args: '<user-id> [reason]',
+        description: 'Kicks user with given id',
+    },
+    {
+        command: '/nick',
+        args: '<display-name>',
+        description: 'Changes your display nickname',
+    },
+];
+
+let COMMAND_RE = /(^\/\w*)/g;
+
+let instance = null;
+
+export default class CommandProvider extends AutocompleteProvider {
+    constructor() {
+        super(COMMAND_RE);
+        this.fuse = new Fuse(COMMANDS, {
+           keys: ['command', 'args', 'description'],
+        });
+    }
+
+    getCompletions(query: string, selection: {start: number, end: number}) {
+        let completions = [];
+        let {command, range} = this.getCurrentCommand(query, selection);
+        if (command) {
+            completions = this.fuse.search(command[0]).map(result => {
+                return {
+                    completion: result.command + ' ',
+                    component: (<TextualCompletion
+                        title={result.command}
+                        subtitle={result.args}
+                        description={result.description}
+                        />),
+                    range,
+                };
+            });
+        }
+        return Q.when(completions);
+    }
+
+    getName() {
+        return 'Commands';
+    }
+
+    static getInstance(): CommandProvider {
+        if (instance == null)
+            instance = new CommandProvider();
+
+        return instance;
+    }
+}

src/autocomplete/Components.js

@@ -0,0 +1,19 @@
+import React from 'react';
+
+export function TextualCompletion({
+    title,
+    subtitle,
+    description,
+}: {
+    title: ?string,
+    subtitle: ?string,
+    description: ?string
+}) {
+    return (
+        <div style={{width: '100%'}}>
+            <span>{title}</span>
+            <em>{subtitle}</em>
+            <span style={{color: 'gray', float: 'right'}}>{description}</span>
+        </div>
+    );
+}

src/autocomplete/DuckDuckGoProvider.js

@@ -0,0 +1,90 @@
+import React from 'react';
+import AutocompleteProvider from './AutocompleteProvider';
+import Q from 'q';
+import 'whatwg-fetch';
+
+import {TextualCompletion} from './Components';
+
+const DDG_REGEX = /\/ddg\s+(.+)$/g;
+const REFERRER = 'vector';
+
+let instance = null;
+
+export default class DuckDuckGoProvider extends AutocompleteProvider {
+    constructor() {
+        super(DDG_REGEX);
+    }
+    
+    static getQueryUri(query: String) {
+        return `https://api.duckduckgo.com/?q=${encodeURIComponent(query)}`
+         + `&format=json&no_redirect=1&no_html=1&t=${encodeURIComponent(REFERRER)}`;
+    }
+
+    getCompletions(query: string, selection: {start: number, end: number}) {
+        let {command, range} = this.getCurrentCommand(query, selection);
+        if (!query || !command) {
+            return Q.when([]);
+        }
+
+        return fetch(DuckDuckGoProvider.getQueryUri(command[1]), {
+            method: 'GET',
+        })
+            .then(response => response.json())
+            .then(json => {
+                let results = json.Results.map(result => {
+                    return {
+                        completion: result.Text,
+                        component: (
+                            <TextualCompletion
+                                title={result.Text}
+                                description={result.Result} />
+                        ),
+                        range,
+                    };
+                });
+                if (json.Answer) {
+                    results.unshift({
+                        completion: json.Answer,
+                        component: (
+                            <TextualCompletion
+                                title={json.Answer}
+                                description={json.AnswerType} />
+                        ),
+                        range,
+                    });
+                }
+                if (json.RelatedTopics && json.RelatedTopics.length > 0) {
+                    results.unshift({
+                        completion: json.RelatedTopics[0].Text,
+                        component: (
+                            <TextualCompletion
+                                title={json.RelatedTopics[0].Text} />
+                        ),
+                        range,
+                    });
+                }
+                if (json.AbstractText) {
+                    results.unshift({
+                        completion: json.AbstractText,
+                        component: (
+                            <TextualCompletion
+                                title={json.AbstractText} />
+                        ),
+                        range,
+                    });
+                }
+                return results;
+            });
+    }
+
+    getName() {
+        return 'Results from DuckDuckGo';
+    }
+
+    static getInstance(): DuckDuckGoProvider {
+        if (instance == null) {
+            instance = new DuckDuckGoProvider();
+        }
+        return instance;
+    }
+}

src/autocomplete/EmojiProvider.js

@@ -0,0 +1,48 @@
+import React from 'react';
+import AutocompleteProvider from './AutocompleteProvider';
+import Q from 'q';
+import {emojioneList, shortnameToImage, shortnameToUnicode} from 'emojione';
+import Fuse from 'fuse.js';
+
+const EMOJI_REGEX = /:\w*:?/g;
+const EMOJI_SHORTNAMES = Object.keys(emojioneList);
+
+let instance = null;
+
+export default class EmojiProvider extends AutocompleteProvider {
+    constructor() {
+        super(EMOJI_REGEX);
+        this.fuse = new Fuse(EMOJI_SHORTNAMES);
+    }
+
+    getCompletions(query: string, selection: {start: number, end: number}) {
+        let completions = [];
+        let {command, range} = this.getCurrentCommand(query, selection);
+        if (command) {
+            completions = this.fuse.search(command[0]).map(result => {
+                let shortname = EMOJI_SHORTNAMES[result];
+                let imageHTML = shortnameToImage(shortname);
+                return {
+                    completion: shortnameToUnicode(shortname),
+                    component: (
+                        <div className="mx_Autocomplete_Completion">
+                            <span dangerouslySetInnerHTML={{__html: imageHTML}}></span> {shortname}
+                        </div>
+                    ),
+                    range,
+                };
+            }).slice(0, 4);
+        }
+        return Q.when(completions);
+    }
+
+    getName() {
+        return 'Emoji';
+    }
+
+    static getInstance() {
+        if (instance == null)
+            instance = new EmojiProvider();
+        return instance;
+    }
+}

src/autocomplete/RoomProvider.js

@@ -0,0 +1,62 @@
+import React from 'react';
+import AutocompleteProvider from './AutocompleteProvider';
+import Q from 'q';
+import MatrixClientPeg from '../MatrixClientPeg';
+import Fuse from 'fuse.js';
+import {TextualCompletion} from './Components';
+import {getDisplayAliasForRoom} from '../MatrixTools';
+
+const ROOM_REGEX = /(?=#)([^\s]*)/g;
+
+let instance = null;
+
+export default class RoomProvider extends AutocompleteProvider {
+    constructor() {
+        super(ROOM_REGEX, {
+            keys: ['displayName', 'userId'],
+        });
+        this.fuse = new Fuse([], {
+           keys: ['name', 'roomId', 'aliases'],
+        });
+    }
+
+    getCompletions(query: string, selection: {start: number, end: number}) {
+        let client = MatrixClientPeg.get();
+        let completions = [];
+        const {command, range} = this.getCurrentCommand(query, selection);
+        if (command) {
+            // the only reason we need to do this is because Fuse only matches on properties
+            this.fuse.set(client.getRooms().filter(room => !!room).map(room => {
+                return {
+                    room: room,
+                    name: room.name,
+                    roomId: room.roomId,
+                    aliases: room.getAliases(),
+                };
+            }));
+            completions = this.fuse.search(command[0]).map(room => {
+                let displayAlias = getDisplayAliasForRoom(room.room) || room.roomId;
+                return {
+                    completion: displayAlias,
+                    component: (
+                        <TextualCompletion title={room.name} description={displayAlias} />
+                    ),
+                    range,
+                };
+            }).slice(0, 4);
+        }
+        return Q.when(completions);
+    }
+
+    getName() {
+        return 'Rooms';
+    }
+    
+    static getInstance() {
+        if (instance == null) {
+            instance = new RoomProvider();
+        }
+        
+        return instance;
+    }
+}

src/autocomplete/UserProvider.js

@@ -0,0 +1,57 @@
+import React from 'react';
+import AutocompleteProvider from './AutocompleteProvider';
+import Q from 'q';
+import Fuse from 'fuse.js';
+import {TextualCompletion} from './Components';
+
+const USER_REGEX = /@[^\s]*/g;
+
+let instance = null;
+
+export default class UserProvider extends AutocompleteProvider {
+    constructor() {
+        super(USER_REGEX, {
+            keys: ['name', 'userId'],
+        });
+        this.users = [];
+        this.fuse = new Fuse([], {
+            keys: ['name', 'userId'],
+        });
+    }
+
+    getCompletions(query: string, selection: {start: number, end: number}) {
+        let completions = [];
+        let {command, range} = this.getCurrentCommand(query, selection);
+        if (command) {
+            this.fuse.set(this.users);
+            completions = this.fuse.search(command[0]).map(user => {
+                const displayName = (user.name || user.userId || '').replace(' (IRC)', ''); // FIXME when groups are done
+                return {
+                    completion: user.userId,
+                    component: (
+                        <TextualCompletion
+                            title={displayName}
+                            description={user.userId} />
+                    ),
+                    range
+                };
+            }).slice(0, 4);
+        }
+        return Q.when(completions);
+    }
+
+    getName() {
+        return 'Users';
+    }
+
+    setUserList(users) {
+        this.users = users;
+    }
+
+    static getInstance(): UserProvider {
+        if (instance == null) {
+            instance = new UserProvider();
+        }
+        return instance;
+    }
+}

src/component-index.js

@@ -25,6 +25,7 @@ limitations under the License.
  */
 
 module.exports.components = {};
+module.exports.components['structures.ContextualMenu'] = require('./components/structures/ContextualMenu');
 module.exports.components['structures.CreateRoom'] = require('./components/structures/CreateRoom');
 module.exports.components['structures.MatrixChat'] = require('./components/structures/MatrixChat');
 module.exports.components['structures.MessagePanel'] = require('./components/structures/MessagePanel');
@@ -51,6 +52,7 @@ module.exports.components['views.dialogs.QuestionDialog'] = require('./component
 module.exports.components['views.dialogs.SetDisplayNameDialog'] = require('./components/views/dialogs/SetDisplayNameDialog');
 module.exports.components['views.dialogs.TextInputDialog'] = require('./components/views/dialogs/TextInputDialog');
 module.exports.components['views.elements.EditableText'] = require('./components/views/elements/EditableText');
+module.exports.components['views.elements.EditableTextContainer'] = require('./components/views/elements/EditableTextContainer');
 module.exports.components['views.elements.PowerSelector'] = require('./components/views/elements/PowerSelector');
 module.exports.components['views.elements.ProgressBar'] = require('./components/views/elements/ProgressBar');
 module.exports.components['views.elements.TintableSvg'] = require('./components/views/elements/TintableSvg');
@@ -74,6 +76,8 @@ module.exports.components['views.messages.TextualEvent'] = require('./components
 module.exports.components['views.messages.UnknownBody'] = require('./components/views/messages/UnknownBody');
 module.exports.components['views.room_settings.AliasSettings'] = require('./components/views/room_settings/AliasSettings');
 module.exports.components['views.room_settings.ColorSettings'] = require('./components/views/room_settings/ColorSettings');
+module.exports.components['views.room_settings.UrlPreviewSettings'] = require('./components/views/room_settings/UrlPreviewSettings');
+module.exports.components['views.rooms.Autocomplete'] = require('./components/views/rooms/Autocomplete');
 module.exports.components['views.rooms.AuxPanel'] = require('./components/views/rooms/AuxPanel');
 module.exports.components['views.rooms.EntityTile'] = require('./components/views/rooms/EntityTile');
 module.exports.components['views.rooms.EventTile'] = require('./components/views/rooms/EventTile');
@@ -104,6 +108,8 @@ module.exports.components['views.rooms.UserTile'] = require('./components/views/
 module.exports.components['views.settings.ChangeAvatar'] = require('./components/views/settings/ChangeAvatar');
 module.exports.components['views.settings.ChangeDisplayName'] = require('./components/views/settings/ChangeDisplayName');
 module.exports.components['views.settings.ChangePassword'] = require('./components/views/settings/ChangePassword');
+module.exports.components['views.settings.DevicesPanel'] = require('./components/views/settings/DevicesPanel');
+module.exports.components['views.settings.DevicesPanelEntry'] = require('./components/views/settings/DevicesPanelEntry');
 module.exports.components['views.settings.EnableNotificationsButton'] = require('./components/views/settings/EnableNotificationsButton');
 module.exports.components['views.voip.CallView'] = require('./components/views/voip/CallView');
 module.exports.components['views.voip.IncomingCallBox'] = require('./components/views/voip/IncomingCallBox');

src/components/structures/ContextualMenu.js

@@ -17,6 +17,7 @@ limitations under the License.
 
 'use strict';
 
+var classNames = require('classnames');
 var React = require('react');
 var ReactDOM = require('react-dom');
 
@@ -27,6 +28,12 @@ var ReactDOM = require('react-dom');
 module.exports = {
     ContextualMenuContainerId: "mx_ContextualMenu_Container",
 
+     propTypes: {
+        menuWidth: React.PropTypes.number,
+        menuHeight: React.PropTypes.number,
+        chevronOffset: React.PropTypes.number,
+    },
+
     getOrCreateContainer: function() {
         var container = document.getElementById(this.ContextualMenuContainerId);
 
@@ -45,29 +52,50 @@ module.exports = {
         var closeMenu = function() {
             ReactDOM.unmountComponentAtNode(self.getOrCreateContainer());
 
-            if (props && props.onFinished) props.onFinished.apply(null, arguments);
+            if (props && props.onFinished) {
+                props.onFinished.apply(null, arguments);
+            }
         };
 
         var position = {
-            top: props.top - 20,
+            top: props.top,
         };
 
+        var chevronOffset = {
+            top: props.chevronOffset,
+        }
+
         var chevron = null;
         if (props.left) {
-            chevron = <img className="mx_ContextualMenu_chevron_left" src="img/chevron-left.png" width="9" height="16" />
-            position.left = props.left + 8;
+            chevron = <div style={chevronOffset} className="mx_ContextualMenu_chevron_left"></div>
+            position.left = props.left;
         } else {
-            chevron = <img className="mx_ContextualMenu_chevron_right" src="img/chevron-right.png" width="9" height="16" />
-            position.right = props.right + 8;
+            chevron = <div style={chevronOffset} className="mx_ContextualMenu_chevron_right"></div>
+            position.right = props.right;
         }
 
         var className = 'mx_ContextualMenu_wrapper';
 
+        var menuClasses = classNames({
+            'mx_ContextualMenu': true,
+            'mx_ContextualMenu_left': props.left,
+            'mx_ContextualMenu_right': !props.left,
+        });
+
+        var menuSize = {};
+        if (props.menuWidth) {
+            menuSize.width = props.menuWidth;
+        }
+
+        if (props.menuHeight) {
+            menuSize.height = props.menuHeight;
+        }
+
         // FIXME: If a menu uses getDefaultProps it clobbers the onFinished
         // property set here so you can't close the menu from a button click!
         var menu = (
-            <div className={className}>
-                <div className="mx_ContextualMenu" style={position}>
+            <div className={className} style={position}>
+                <div className={menuClasses} style={menuSize}>
                     {chevron}
                     <Element {...props} onFinished={closeMenu}/>
                 </div>

src/components/structures/CreateRoom.js

@@ -24,7 +24,6 @@ var PresetValues = {
     Custom: "custom",
 };
 var q = require('q');
-var encryption = require("../../encryption");
 var sdk = require('../../index');
 
 module.exports = React.createClass({
@@ -108,17 +107,8 @@ module.exports = React.createClass({
 
         var deferred = cli.createRoom(options);
 
-        var response;
-
         if (this.state.encrypt) {
-            deferred = deferred.then(function(res) {
-                response = res;
-                return encryption.enableEncryption(
-                    cli, response.room_id, options.invite
-                );
-            }).then(function() {
-                return q(response) }
-            );
+            // TODO
         }
 
         this.setState({

src/components/structures/MatrixChat.js

@@ -21,7 +21,7 @@ var Favico = require('favico.js');
 var MatrixClientPeg = require("../../MatrixClientPeg");
 var SdkConfig = require("../../SdkConfig");
 var Notifier = require("../../Notifier");
-var ContextualMenu = require("../../ContextualMenu");
+var ContextualMenu = require("./ContextualMenu");
 var RoomListSorter = require("../../RoomListSorter");
 var UserActivity = require("../../UserActivity");
 var Presence = require("../../Presence");
@@ -37,6 +37,7 @@ var sdk = require('../../index');
 var MatrixTools = require('../../MatrixTools');
 var linkifyMatrix = require("../../linkify-matrix");
 var KeyCode = require('../../KeyCode');
+var Lifecycle = require('../../Lifecycle');
 
 var createRoom = require("../../createRoom");
 
@@ -109,10 +110,14 @@ module.exports = React.createClass({
             return window.localStorage.getItem("mx_hs_url");
         }
         else {
-            return this.props.config.default_hs_url || "https://matrix.org";
+            return this.getDefaultHsUrl();
         }
     },
 
+    getDefaultHsUrl() {
+        return this.props.config.default_hs_url || "https://matrix.org";
+    },
+
     getFallbackHsUrl: function() {
         return this.props.config.fallback_hs_url;
     },
@@ -127,16 +132,31 @@ module.exports = React.createClass({
             return window.localStorage.getItem("mx_is_url");
         }
         else {
-            return this.props.config.default_is_url || "https://vector.im"
+            return this.getDefaultIsUrl();
         }
     },
 
+    getDefaultIsUrl() {
+        return this.props.config.default_is_url || "https://vector.im";
+    },
+
     componentWillMount: function() {
         SdkConfig.put(this.props.config);
         this.favicon = new Favico({animation: 'none'});
+
+        // Stashed guest credentials if the user logs out
+        // whilst logged in as a guest user (so they can change
+        // their mind & log back in)
+        this.guestCreds = null;
+
+        if (this.props.config.sync_timeline_limit) {
+            MatrixClientPeg.opts.initialSyncLimit = this.props.config.sync_timeline_limit;
+        }
     },
 
     componentDidMount: function() {
+        let clientStarted = false;
+
         this._autoRegisterAsGuest = false;
         if (this.props.enableGuest) {
             if (!this.getCurrentHsUrl()) {
@@ -150,13 +170,14 @@ module.exports = React.createClass({
                 this.props.startingQueryParams.guest_access_token)
             {
                 this._autoRegisterAsGuest = false;
-                this.onLoggedIn({
+                Lifecycle.setLoggedIn({
                     userId: this.props.startingQueryParams.guest_user_id,
                     accessToken: this.props.startingQueryParams.guest_access_token,
-                    homeserverUrl: this.props.config.default_hs_url,
-                    identityServerUrl: this.props.config.default_is_url,
+                    homeserverUrl: this.getDefaultHsUrl(),
+                    identityServerUrl: this.getDefaultIsUrl(),
                     guest: true
                 });
+                clientStarted = true;
             }
             else {
                 this._autoRegisterAsGuest = true;
@@ -168,7 +189,9 @@ module.exports = React.createClass({
             // Don't auto-register as a guest. This applies if you refresh the page on a
             // logged in client THEN hit the Sign Out button.
             this._autoRegisterAsGuest = false;
-            this.startMatrixClient();
+            if (!clientStarted) {
+                Lifecycle.startMatrixClient();
+            }
         }
         this.focusComposer = false;
         // scrollStateMap is a map from room id to the scroll state returned by
@@ -223,7 +246,7 @@ module.exports = React.createClass({
         MatrixClientPeg.get().registerGuest().done(function(creds) {
             console.log("Registered as guest: %s", creds.user_id);
             self._setAutoRegisterAsGuest(false);
-            self.onLoggedIn({
+            Lifecycle.setLoggedIn({
                 userId: creds.user_id,
                 accessToken: creds.access_token,
                 homeserverUrl: hsUrl,
@@ -254,34 +277,10 @@ module.exports = React.createClass({
         var self = this;
         switch (payload.action) {
             case 'logout':
-                var guestCreds;
                 if (MatrixClientPeg.get().isGuest()) {
-                    guestCreds = { // stash our guest creds so we can backout if needed
-                        userId: MatrixClientPeg.get().credentials.userId,
-                        accessToken: MatrixClientPeg.get().getAccessToken(),
-                        homeserverUrl: MatrixClientPeg.get().getHomeserverUrl(),
-                        identityServerUrl: MatrixClientPeg.get().getIdentityServerUrl(),
-                        guest: true
-                    }
+                    this.guestCreds = MatrixClientPeg.getCredentials();
                 }
-
-                if (window.localStorage) {
-                    var hsUrl = this.getCurrentHsUrl();
-                    var isUrl = this.getCurrentIsUrl();
-                    window.localStorage.clear();
-                    // preserve our HS & IS URLs for convenience
-                    // N.B. we cache them in hsUrl/isUrl and can't really inline them
-                    // as getCurrentHsUrl() may call through to localStorage.
-                    window.localStorage.setItem("mx_hs_url", hsUrl);
-                    window.localStorage.setItem("mx_is_url", isUrl);
-                }
-                this._stopMatrixClient();
-                this.notifyNewScreen('login');
-                this.replaceState({
-                    logged_in: false,
-                    ready: false,
-                    guestCreds: guestCreds,
-                });
+                Lifecycle.logout();
                 break;
             case 'start_registration':
                 var newState = payload.params || {};
@@ -307,7 +306,6 @@ module.exports = React.createClass({
                 if (this.state.logged_in) return;
                 this.replaceState({
                     screen: 'login',
-                    guestCreds: this.state.guestCreds,
                 });
                 this.notifyNewScreen('login');
                 break;
@@ -317,17 +315,12 @@ module.exports = React.createClass({
                 });
                 break;
             case 'start_upgrade_registration':
+                // stash our guest creds so we can backout if needed
+                this.guestCreds = MatrixClientPeg.getCredentials();
                 this.replaceState({
                     screen: "register",
                     upgradeUsername: MatrixClientPeg.get().getUserIdLocalpart(),
                     guestAccessToken: MatrixClientPeg.get().getAccessToken(),
-                    guestCreds: { // stash our guest creds so we can backout if needed
-                        userId: MatrixClientPeg.get().credentials.userId,
-                        accessToken: MatrixClientPeg.get().getAccessToken(),
-                        homeserverUrl: MatrixClientPeg.get().getHomeserverUrl(),
-                        identityServerUrl: MatrixClientPeg.get().getIdentityServerUrl(),
-                        guest: true
-                    }
                 });
                 this.notifyNewScreen('register');
                 break;
@@ -349,10 +342,13 @@ module.exports = React.createClass({
 
                 var client = MatrixClientPeg.get();
                 client.loginWithToken(payload.params.loginToken).done(function(data) {
-                    MatrixClientPeg.replaceUsingAccessToken(
-                        client.getHomeserverUrl(), client.getIdentityServerUrl(),
-                        data.user_id, data.access_token
-                    );
+                    MatrixClientPeg.replaceUsingCreds({
+                        homeserverUrl: client.getHomeserverUrl(),
+                        identityServerUrl: client.getIdentityServerUrl(),
+                        userId: data.user_id,
+                        accessToken: data.access_token,
+                        guest: false,
+                    });
                     self.setState({
                         screen: undefined,
                         logged_in: true
@@ -384,7 +380,7 @@ module.exports = React.createClass({
 
                             // FIXME: controller shouldn't be loading a view :(
                             var Loader = sdk.getComponent("elements.Spinner");
-                            var modal = Modal.createDialog(Loader);
+                            var modal = Modal.createDialog(Loader, null, 'mx_Dialog_spinner');
 
                             d.then(function() {
                                 modal.close();
@@ -405,10 +401,7 @@ module.exports = React.createClass({
                 // known to be in (eg. user clicks on a room in the recents panel), supply the ID
                 // If the user is clicking on a room in the context of the alias being presented
                 // to them, supply the room alias. If both are supplied, the room ID will be ignored.
-                this._viewRoom(
-                    payload.room_id, payload.room_alias, payload.show_settings, payload.event_id,
-                    payload.third_party_invite, payload.oob_data
-                );
+                this._viewRoom(payload);
                 break;
             case 'view_prev_room':
                 roomIndexDelta = -1;
@@ -425,7 +418,7 @@ module.exports = React.createClass({
                 }
                 roomIndex = (roomIndex + roomIndexDelta) % allRooms.length;
                 if (roomIndex < 0) roomIndex = allRooms.length - 1;
-                this._viewRoom(allRooms[roomIndex].roomId);
+                this._viewRoom({ room_id: allRooms[roomIndex].roomId });
                 break;
             case 'view_indexed_room':
                 var allRooms = RoomListSorter.mostRecentActivityFirst(
@@ -433,7 +426,7 @@ module.exports = React.createClass({
                 );
                 var roomIndex = payload.roomIndex;
                 if (allRooms[roomIndex]) {
-                    this._viewRoom(allRooms[roomIndex].roomId);
+                    this._viewRoom({ room_id: allRooms[roomIndex].roomId });
                 }
                 break;
             case 'view_user_settings':
@@ -479,6 +472,15 @@ module.exports = React.createClass({
                     middleOpacity: payload.middleOpacity,
                 });
                 break;
+            case 'on_logged_in':
+                this._onLoggedIn();
+                break;
+            case 'on_logged_out':
+                this._onLoggedOut();
+                break;
+            case 'will_start_client':
+                this._onWillStartClient();
+                break;
         }
     },
 
@@ -493,39 +495,45 @@ module.exports = React.createClass({
 
     // switch view to the given room
     //
-    // eventId is optional and will cause a switch to the context of that
-    // particular event.
-    // @param {Object} thirdPartyInvite Object containing data about the third party
+    // @param {Object} room_info Object containing data about the room to be joined
+    // @param {string=} room_info.room_id ID of the room to join. One of room_id or room_alias must be given.
+    // @param {string=} room_info.room_alias Alias of the room to join. One of room_id or room_alias must be given.
+    // @param {boolean=} room_info.auto_join If true, automatically attempt to join the room if not already a member.
+    // @param {boolean=} room_info.show_settings Makes RoomView show the room settings dialog.
+    // @param {string=} room_info.event_id ID of the event in this room to show: this will cause a switch to the
+    //                                    context of that particular event.
+    // @param {Object=} room_info.third_party_invite Object containing data about the third party
     //                                    we received to join the room, if any.
-    // @param {string} thirdPartyInvite.inviteSignUrl 3pid invite sign URL
-    // @param {string} thirdPartyInvite.invitedwithEmail The email address the invite was sent to
-    // @param {Object} oob_data Object of additional data about the room
+    // @param {string=} room_info.third_party_invite.inviteSignUrl 3pid invite sign URL
+    // @param {string=} room_info.third_party_invite.invitedEmail The email address the invite was sent to
+    // @param {Object=} room_info.oob_data Object of additional data about the room
     //                               that has been passed out-of-band (eg.
     //                               room name and avatar from an invite email)
-    _viewRoom: function(roomId, roomAlias, showSettings, eventId, thirdPartyInvite, oob_data) {
+    _viewRoom: function(room_info) {
         // before we switch room, record the scroll state of the current room
         this._updateScrollMap();
 
         this.focusComposer = true;
 
         var newState = {
-            initialEventId: eventId,
-            highlightedEventId: eventId,
+            initialEventId: room_info.event_id,
+            highlightedEventId: room_info.event_id,
             initialEventPixelOffset: undefined,
             page_type: this.PageTypes.RoomView,
-            thirdPartyInvite: thirdPartyInvite,
-            roomOobData: oob_data,
-            currentRoomAlias: roomAlias,
+            thirdPartyInvite: room_info.third_party_invite,
+            roomOobData: room_info.oob_data,
+            currentRoomAlias: room_info.room_alias,
+            autoJoin: room_info.auto_join,
         };
 
-        if (!roomAlias) {
-            newState.currentRoomId = roomId;
+        if (!room_info.room_alias) {
+            newState.currentRoomId = room_info.room_id;
         }
 
         // if we aren't given an explicit event id, look for one in the
         // scrollStateMap.
-        if (!eventId) {
-            var scrollState = this.scrollStateMap[roomId];
+        if (!room_info.event_id) {
+            var scrollState = this.scrollStateMap[room_info.room_id];
             if (scrollState) {
                 newState.initialEventId = scrollState.focussedEvent;
                 newState.initialEventPixelOffset = scrollState.pixelOffset;
@@ -538,8 +546,8 @@ module.exports = React.createClass({
             // the new screen yet (we won't be showing it yet)
             // The normal case where this happens is navigating
             // to the room in the URL bar on page load.
-            var presentedId = roomAlias || roomId;
-            var room = MatrixClientPeg.get().getRoom(roomId);
+            var presentedId = room_info.room_alias || room_info.room_id;
+            var room = MatrixClientPeg.get().getRoom(room_info.room_id);
             if (room) {
                 var theAlias = MatrixTools.getDisplayAliasForRoom(room);
                 if (theAlias) presentedId = theAlias;
@@ -555,15 +563,15 @@ module.exports = React.createClass({
                 // Tinter.tint(color_scheme.primary_color, color_scheme.secondary_color);
             }
 
-            if (eventId) {
-                presentedId += "/"+eventId;
+            if (room_info.event_id) {
+                presentedId += "/"+room_info.event_id;
             }
             this.notifyNewScreen('room/'+presentedId);
             newState.ready = true;
         }
         this.setState(newState);
 
-        if (this.refs.roomView && showSettings) {
+        if (this.refs.roomView && room_info.showSettings) {
             this.refs.roomView.showSettings(true);
         }
     },
@@ -583,23 +591,36 @@ module.exports = React.createClass({
         this.scrollStateMap[roomId] = state;
     },
 
-    onLoggedIn: function(credentials) {
-        credentials.guest = Boolean(credentials.guest);
-        console.log("onLoggedIn => %s (guest=%s)", credentials.userId, credentials.guest);
-        MatrixClientPeg.replaceUsingAccessToken(
-            credentials.homeserverUrl, credentials.identityServerUrl,
-            credentials.userId, credentials.accessToken, credentials.guest
-        );
+    /**
+     * Called when a new logged in session has started
+     */
+    _onLoggedIn: function(credentials) {
+        this.guestCreds = null;
+        this.notifyNewScreen('');
         this.setState({
             screen: undefined,
-            logged_in: true
+            logged_in: true,
         });
-        this.startMatrixClient();
-        this.notifyNewScreen('');
     },
 
-    startMatrixClient: function() {
+    /**
+     * Called when the session is logged out
+     */
+    _onLoggedOut: function() {
+        this.notifyNewScreen('login');
+        this.replaceState({
+            logged_in: false,
+            ready: false,
+        });
+    },
+
+    /**
+     * Called just before the matrix client is started
+     * (useful for setting listeners)
+     */
+    _onWillStartClient() {
         var cli = MatrixClientPeg.get();
+
         var self = this;
         cli.on('sync', function(state, prevState) {
             self.updateFavicon(state, prevState);
@@ -666,13 +687,6 @@ module.exports = React.createClass({
                 action: 'logout'
             });
         });
-        Notifier.start();
-        UserActivity.start();
-        Presence.start();
-        cli.startClient({
-            pendingEventOrdering: "detached",
-            initialSyncLimit: this.props.config.sync_timeline_limit || 20,
-        });
     },
 
     // stop all the background processes related to the current client
@@ -910,12 +924,14 @@ module.exports = React.createClass({
 
     onReturnToGuestClick: function() {
         // reanimate our guest login
-        this.onLoggedIn(this.state.guestCreds);
-        this.setState({ guestCreds: null });
+        if (this.guestCreds) {
+            Lifecycle.setLoggedIn(this.guestCreds);
+            this.guestCreds = null;
+        }
     },
 
     onRegistered: function(credentials) {
-        this.onLoggedIn(credentials);
+        Lifecycle.setLoggedIn(credentials);
         // do post-registration stuff
         // This now goes straight to user settings
         // We use _setPage since if we wait for
@@ -1032,6 +1048,7 @@ module.exports = React.createClass({
                         <RoomView
                             ref="roomView"
                             roomAddress={this.state.currentRoomAlias || this.state.currentRoomId}
+                            autoJoin={this.state.autoJoin}
                             onRoomIdResolved={this.onRoomIdResolved}
                             eventId={this.state.initialEventId}
                             thirdPartyInvite={this.state.thirdPartyInvite}
@@ -1111,8 +1128,8 @@ module.exports = React.createClass({
                     email={this.props.startingQueryParams.email}
                     username={this.state.upgradeUsername}
                     guestAccessToken={this.state.guestAccessToken}
-                    defaultHsUrl={this.props.config.default_hs_url}
-                    defaultIsUrl={this.props.config.default_is_url}
+                    defaultHsUrl={this.getDefaultHsUrl()}
+                    defaultIsUrl={this.getDefaultIsUrl()}
                     brand={this.props.config.brand}
                     customHsUrl={this.getCurrentHsUrl()}
                     customIsUrl={this.getCurrentIsUrl()}
@@ -1120,14 +1137,14 @@ module.exports = React.createClass({
                     onLoggedIn={this.onRegistered}
                     onLoginClick={this.onLoginClick}
                     onRegisterClick={this.onRegisterClick}
-                    onCancelClick={ this.state.guestCreds ? this.onReturnToGuestClick : null }
+                    onCancelClick={this.guestCreds ? this.onReturnToGuestClick : null}
                     />
             );
         } else if (this.state.screen == 'forgot_password') {
             return (
                 <ForgotPassword
-                    defaultHsUrl={this.props.config.default_hs_url}
-                    defaultIsUrl={this.props.config.default_is_url}
+                    defaultHsUrl={this.getDefaultHsUrl()}
+                    defaultIsUrl={this.getDefaultIsUrl()}
                     customHsUrl={this.getCurrentHsUrl()}
                     customIsUrl={this.getCurrentIsUrl()}
                     onComplete={this.onLoginClick}
@@ -1136,16 +1153,16 @@ module.exports = React.createClass({
         } else {
             return (
                 <Login
-                    onLoggedIn={this.onLoggedIn}
+                    onLoggedIn={Lifecycle.setLoggedIn}
                     onRegisterClick={this.onRegisterClick}
-                    defaultHsUrl={this.props.config.default_hs_url}
-                    defaultIsUrl={this.props.config.default_is_url}
+                    defaultHsUrl={this.getDefaultHsUrl()}
+                    defaultIsUrl={this.getDefaultIsUrl()}
                     customHsUrl={this.getCurrentHsUrl()}
                     customIsUrl={this.getCurrentIsUrl()}
                     fallbackHsUrl={this.getFallbackHsUrl()}
                     onForgotPasswordClick={this.onForgotPasswordClick}
-                    onLoginAsGuestClick={this.props.enableGuest && this.props.config && this.props.config.default_hs_url ? this._registerAsGuest.bind(this, true) : undefined}
-                    onCancelClick={ this.state.guestCreds ? this.onReturnToGuestClick : null }
+                    onLoginAsGuestClick={this.props.enableGuest && this.props.config && this._registerAsGuest.bind(this, true)}
+                    onCancelClick={this.guestCreds ? this.onReturnToGuestClick : null}
                     />
             );
         }

src/components/structures/MessagePanel.js

@@ -44,6 +44,9 @@ module.exports = React.createClass({
         // ID of an event to highlight. If undefined, no event will be highlighted.
         highlightedEventId: React.PropTypes.string,
 
+        // Should we show URL Previews
+        showUrlPreview: React.PropTypes.bool,
+
         // event after which we should show a read marker
         readMarkerEventId: React.PropTypes.string,
 
@@ -365,6 +368,7 @@ module.exports = React.createClass({
                         onWidgetLoad={this._onWidgetLoad}
                         readReceipts={readReceipts}
                         readReceiptMap={this._readReceiptMap}
+                        showUrlPreview={this.props.showUrlPreview}
                         checkUnmounting={this._isUnmounting}
                         eventSendStatus={mxEv.status}
                         last={last} isSelectedEvent={highlight}/>

src/components/structures/RoomStatusBar.js

@@ -26,9 +26,9 @@ module.exports = React.createClass({
     propTypes: {
         // the room this statusbar is representing.
         room: React.PropTypes.object.isRequired,
-        
-        // a list of TabCompleteEntries.Entry objects
-        tabCompleteEntries: React.PropTypes.array,
+
+        // a TabComplete object
+        tabComplete: React.PropTypes.object.isRequired,
 
         // the number of messages which have arrived since we've been scrolled up
         numUnreadMessages: React.PropTypes.number,
@@ -208,11 +208,11 @@ module.exports = React.createClass({
             );
         }
 
-        if (this.props.tabCompleteEntries) {
+        if (this.props.tabComplete.isTabCompleting()) {
             return (
                 <div className="mx_RoomStatusBar_tabCompleteBar">
                     <div className="mx_RoomStatusBar_tabCompleteWrapper">
-                        <TabCompleteBar entries={this.props.tabCompleteEntries} />
+                        <TabCompleteBar tabComplete={this.props.tabComplete} />
                         <div className="mx_RoomStatusBar_tabCompleteEol" title="->|">
                             <TintableSvg src="img/eol.svg" width="22" height="16"/>
                             Auto-complete
@@ -233,7 +233,7 @@ module.exports = React.createClass({
                         <a className="mx_RoomStatusBar_resend_link"
                           onClick={ this.props.onResendAllClick }>
                             Resend all
-                        </a> or <a 
+                        </a> or <a
                           className="mx_RoomStatusBar_resend_link"
                           onClick={ this.props.onCancelAllClick }>
                             cancel all
@@ -247,7 +247,7 @@ module.exports = React.createClass({
         // unread count trumps who is typing since the unread count is only
         // set when you've scrolled up
         if (this.props.numUnreadMessages) {
-            var unreadMsgs = this.props.numUnreadMessages + " new message" + 
+            var unreadMsgs = this.props.numUnreadMessages + " new message" +
                 (this.props.numUnreadMessages > 1 ? "s" : "");
 
             return (
@@ -291,5 +291,5 @@ module.exports = React.createClass({
                 {content}
             </div>
         );
-    },  
+    },
 });

src/components/structures/RoomView.js

@@ -31,16 +31,15 @@ var Modal = require("../../Modal");
 var sdk = require('../../index');
 var CallHandler = require('../../CallHandler');
 var TabComplete = require("../../TabComplete");
-var MemberEntry = require("../../TabCompleteEntries").MemberEntry;
-var CommandEntry = require("../../TabCompleteEntries").CommandEntry;
 var Resend = require("../../Resend");
-var SlashCommands = require("../../SlashCommands");
 var dis = require("../../dispatcher");
 var Tinter = require("../../Tinter");
 var rate_limited_func = require('../../ratelimitedfunc');
 var ObjectUtils = require('../../ObjectUtils');
 var MatrixTools = require('../../MatrixTools');
 
+import UserProvider from '../../autocomplete/UserProvider';
+
 var DEBUG = false;
 
 if (DEBUG) {
@@ -117,6 +116,11 @@ module.exports = React.createClass({
             guestsCanJoin: false,
             canPeek: false,
 
+            // error object, as from the matrix client/server API
+            // If we failed to load information about the room,
+            // store the error here.
+            roomLoadError: null,
+
             // this is true if we are fully scrolled-down, and are looking at
             // the end of the live timeline. It has the effect of hiding the
             // 'scroll to bottom' knob, among a couple of other things.
@@ -134,6 +138,7 @@ module.exports = React.createClass({
         MatrixClientPeg.get().on("Room.timeline", this.onRoomTimeline);
         MatrixClientPeg.get().on("Room.accountData", this.onRoomAccountData);
         MatrixClientPeg.get().on("RoomState.members", this.onRoomStateMember);
+        MatrixClientPeg.get().on("accountData", this.onAccountData);
 
         this.tabComplete = new TabComplete({
             allowLooping: false,
@@ -159,10 +164,11 @@ module.exports = React.createClass({
                     roomId: result.room_id,
                     roomLoading: !room,
                     hasUnsentMessages: this._hasUnsentMessages(room),
-                }, this._updatePeeking);
+                }, this._onHaveRoom);
             }, (err) => {
                 this.setState({
                     roomLoading: false,
+                    roomLoadError: err,
                 });
             });
         } else {
@@ -172,11 +178,11 @@ module.exports = React.createClass({
                 room: room,
                 roomLoading: !room,
                 hasUnsentMessages: this._hasUnsentMessages(room),
-            }, this._updatePeeking);
+            }, this._onHaveRoom);
         }
     },
 
-    _updatePeeking: function() {
+    _onHaveRoom: function() {
         // if this is an unknown room then we're in one of three states:
         // - This is a room we can peek into (search engine) (we can /peek)
         // - This is a room we can publicly join or were invited to. (we can /join)
@@ -187,29 +193,47 @@ module.exports = React.createClass({
         // Note that peeking works by room ID and room ID only, as opposed to joining
         // which must be by alias or invite wherever possible (peeking currently does
         // not work over federation).
-        if (!this.state.room && this.state.roomId) {
-            console.log("Attempting to peek into room %s", this.state.roomId);
 
-            MatrixClientPeg.get().peekInRoom(this.state.roomId).then((room) => {
-                this.setState({
-                    room: room,
-                    roomLoading: false,
-                });
-                this._onRoomLoaded(room);
-            }, (err) => {
-                // This won't necessarily be a MatrixError, but we duck-type
-                // here and say if it's got an 'errcode' key with the right value,
-                // it means we can't peek.
-                if (err.errcode == "M_GUEST_ACCESS_FORBIDDEN") {
-                    // This is fine: the room just isn't peekable (we assume).
+        // NB. We peek if we are not in the room, although if we try to peek into
+        // a room in which we have a member event (ie. we've left) synapse will just
+        // send us the same data as we get in the sync (ie. the last events we saw).
+        var user_is_in_room = null;
+        if (this.state.room) {
+            user_is_in_room = this.state.room.hasMembershipState(
+                MatrixClientPeg.get().credentials.userId, 'join'
+            );
+
+            this._updateAutoComplete();
+            this.tabComplete.loadEntries(this.state.room);
+        }
+
+        if (!user_is_in_room && this.state.roomId) {
+            if (this.props.autoJoin) {
+                this.onJoinButtonClicked();
+            } else if (this.state.roomId) {
+                console.log("Attempting to peek into room %s", this.state.roomId);
+
+                MatrixClientPeg.get().peekInRoom(this.state.roomId).then((room) => {
                     this.setState({
+                        room: room,
                         roomLoading: false,
                     });
-                } else {
-                    throw err;
-                }
-            }).done();
-        } else if (this.state.room) {
+                    this._onRoomLoaded(room);
+                }, (err) => {
+                    // This won't necessarily be a MatrixError, but we duck-type
+                    // here and say if it's got an 'errcode' key with the right value,
+                    // it means we can't peek.
+                    if (err.errcode == "M_GUEST_ACCESS_FORBIDDEN") {
+                        // This is fine: the room just isn't peekable (we assume).
+                        this.setState({
+                            roomLoading: false,
+                        });
+                    } else {
+                        throw err;
+                    }
+                }).done();
+            }
+        } else if (user_is_in_room) {
             MatrixClientPeg.get().stopPeeking();
             this._onRoomLoaded(this.state.room);
         }
@@ -244,6 +268,7 @@ module.exports = React.createClass({
             MatrixClientPeg.get().removeListener("Room.timeline", this.onRoomTimeline);
             MatrixClientPeg.get().removeListener("Room.accountData", this.onRoomAccountData);
             MatrixClientPeg.get().removeListener("RoomState.members", this.onRoomStateMember);
+            MatrixClientPeg.get().removeListener("accountData", this.onAccountData);
         }
 
         window.removeEventListener('resize', this.onResize);
@@ -315,6 +340,10 @@ module.exports = React.createClass({
         // ignore events for other rooms
         if (!this.state.room || room.roomId != this.state.room.roomId) return;
 
+        if (ev.getType() === "org.matrix.room.preview_urls") {
+            this._updatePreviewUrlVisibility(room);
+        }
+
         // ignore anything but real-time updates at the end of the room:
         // updates from pagination will happen when the paginate completes.
         if (toStartOfTimeline || !data || !data.liveEvent) return;
@@ -334,12 +363,21 @@ module.exports = React.createClass({
                 });
             }
         }
+
+        // update the tab complete list as it depends on who most recently spoke,
+        // and that has probably just changed
+        if (ev.sender) {
+            this.tabComplete.onMemberSpoke(ev.sender);
+            // nb. we don't need to update the new autocomplete here since
+            // its results are currently ordered purely by search score.
+        }
     },
 
     // called when state.room is first initialised (either at initial load,
     // after a successful peek, or after we join the room).
     _onRoomLoaded: function(room) {
         this._calculatePeekRules(room);
+        this._updatePreviewUrlVisibility(room);
     },
 
     _calculatePeekRules: function(room) {
@@ -358,6 +396,42 @@ module.exports = React.createClass({
         }
     },
 
+    _updatePreviewUrlVisibility: function(room) {
+        // console.log("_updatePreviewUrlVisibility");
+
+        // check our per-room overrides
+        var roomPreviewUrls = room.getAccountData("org.matrix.room.preview_urls");
+        if (roomPreviewUrls && roomPreviewUrls.getContent().disable !== undefined) {
+            this.setState({
+                showUrlPreview: !roomPreviewUrls.getContent().disable
+            });
+            return;
+        }
+
+        // check our global disable override
+        var userRoomPreviewUrls = MatrixClientPeg.get().getAccountData("org.matrix.preview_urls");
+        if (userRoomPreviewUrls && userRoomPreviewUrls.getContent().disable) {
+            this.setState({
+                showUrlPreview: false
+            });
+            return;
+        }
+
+        // check the room state event
+        var roomStatePreviewUrls = room.currentState.getStateEvents('org.matrix.room.preview_urls', '');
+        if (roomStatePreviewUrls && roomStatePreviewUrls.getContent().disable) {
+            this.setState({
+                showUrlPreview: false
+            });
+            return;
+        }
+
+        // otherwise, we assume they're on.
+        this.setState({
+            showUrlPreview: true
+        });
+    },
+
     onRoom: function(room) {
         // This event is fired when the room is 'stored' by the JS SDK, which
         // means it's now a fully-fledged room object ready to be used, so
@@ -388,14 +462,23 @@ module.exports = React.createClass({
         Tinter.tint(color_scheme.primary_color, color_scheme.secondary_color);
     },
 
-    onRoomAccountData: function(room, event) {
-        if (room.roomId == this.props.roomId) {
-            if (event.getType === "org.matrix.room.color_scheme") {
+    onAccountData: function(event) {
+        if (event.getType() === "org.matrix.preview_urls" && this.state.room) {
+            this._updatePreviewUrlVisibility(this.state.room);
+        }
+    },
+
+    onRoomAccountData: function(event, room) {
+        if (room.roomId == this.state.roomId) {
+            if (event.getType() === "org.matrix.room.color_scheme") {
                 var color_scheme = event.getContent();
                 // XXX: we should validate the event
                 console.log("Tinter.tint from onRoomAccountData");
                 Tinter.tint(color_scheme.primary_color, color_scheme.secondary_color);
             }
+            else if (event.getType() === "org.matrix.room.preview_urls") {
+                this._updatePreviewUrlVisibility(room);
+            }
         }
     },
 
@@ -410,8 +493,20 @@ module.exports = React.createClass({
             return;
         }
 
+        if (this.props.ConferenceHandler &&
+            member.userId === this.props.ConferenceHandler.getConferenceUserIdForRoom(member.roomId)) {
+            this._updateConfCallNotification();
+        }
+
+        this._updateRoomMembers();
+    },
+
+    // rate limited because a power level change will emit an event for every
+    // member in the room.
+    _updateRoomMembers: new rate_limited_func(function() {
         // a member state changed in this room, refresh the tab complete list
-        this._updateTabCompleteList();
+        this.tabComplete.loadEntries(this.state.room);
+        this._updateAutoComplete();
 
         // if we are now a member of the room, where we were not before, that
         // means we have finished joining a room we were previously peeking
@@ -422,12 +517,7 @@ module.exports = React.createClass({
                 joining: false
             });
         }
-
-        if (this.props.ConferenceHandler &&
-            member.userId === this.props.ConferenceHandler.getConferenceUserIdForRoom(member.roomId)) {
-            this._updateConfCallNotification();
-        }
-    },
+    }, 500),
 
     _hasUnsentMessages: function(room) {
         return this._getUnsentMessages(room).length > 0;
@@ -476,8 +566,6 @@ module.exports = React.createClass({
         window.addEventListener('resize', this.onResize);
         this.onResize();
 
-        this._updateTabCompleteList();
-
         // XXX: EVIL HACK to autofocus inviting on empty rooms.
         // We use the setTimeout to avoid racing with focus_composer.
         if (this.state.room &&
@@ -495,22 +583,6 @@ module.exports = React.createClass({
         }
     },
 
-    _updateTabCompleteList: new rate_limited_func(function() {
-        var cli = MatrixClientPeg.get();
-
-        if (!this.state.room || !this.tabComplete) {
-            return;
-        }
-        var members = this.state.room.getJoinedMembers().filter(function(member) {
-            if (member.userId !== cli.credentials.userId) return true;
-        });
-        this.tabComplete.setCompletionList(
-            MemberEntry.fromMemberList(members).concat(
-                CommandEntry.fromCommands(SlashCommands.getCommandList())
-            )
-        );
-    }, 500),
-
     componentDidUpdate: function() {
         if (this.refs.roomView) {
             var roomView = ReactDOM.findDOMNode(this.refs.roomView);
@@ -992,7 +1064,7 @@ module.exports = React.createClass({
         this.setState({
             rejecting: true
         });
-        MatrixClientPeg.get().leave(this.props.roomAddress).done(function() {
+        MatrixClientPeg.get().leave(this.state.roomId).done(function() {
             dis.dispatch({ action: 'view_next_room' });
             self.setState({
                 rejecting: false
@@ -1235,6 +1307,14 @@ module.exports = React.createClass({
         }
     },
 
+    _updateAutoComplete: function() {
+        const myUserId = MatrixClientPeg.get().credentials.userId;
+        const members = this.state.room.getJoinedMembers().filter(function(member) {
+            if (member.userId !== myUserId) return true;
+        });
+        UserProvider.getInstance().setUserList(members);
+    },
+
     render: function() {
         var RoomHeader = sdk.getComponent('rooms.RoomHeader');
         var MessageComposer = sdk.getComponent('rooms.MessageComposer');
@@ -1267,6 +1347,7 @@ module.exports = React.createClass({
 
                     // We have no room object for this room, only the ID.
                     // We've got to this room by following a link, possibly a third party invite.
+                    var room_alias = this.props.roomAddress[0] == '#' ? this.props.roomAddress : null;
                     return (
                         <div className="mx_RoomView">
                             <RoomHeader ref="header"
@@ -1277,7 +1358,8 @@ module.exports = React.createClass({
                             <div className="mx_RoomView_auxPanel">
                                 <RoomPreviewBar onJoinClick={ this.onJoinButtonClicked }
                                                 onRejectClick={ this.onRejectThreepidInviteButtonClicked }
-                                                canJoin={ true } canPreview={ false }
+                                                canPreview={ false } error={ this.state.roomLoadError }
+                                                roomAlias={room_alias}
                                                 spinner={this.state.joining}
                                                 inviterName={inviterName}
                                                 invitedEmail={invitedEmail}
@@ -1315,7 +1397,7 @@ module.exports = React.createClass({
                             <RoomPreviewBar onJoinClick={ this.onJoinButtonClicked }
                                             onRejectClick={ this.onRejectButtonClicked }
                                             inviterName={ inviterName }
-                                            canJoin={ true } canPreview={ false }
+                                            canPreview={ false }
                                             spinner={this.state.joining}
                                             room={this.state.room}
                             />
@@ -1346,12 +1428,10 @@ module.exports = React.createClass({
             statusBar = <UploadBar room={this.state.room} />
         } else if (!this.state.searchResults) {
             var RoomStatusBar = sdk.getComponent('structures.RoomStatusBar');
-            var tabEntries = this.tabComplete.isTabCompleting() ?
-                this.tabComplete.peek(6) : null;
 
             statusBar = <RoomStatusBar
                 room={this.state.room}
-                tabCompleteEntries={tabEntries}
+                tabComplete={this.tabComplete}
                 numUnreadMessages={this.state.numUnreadMessages}
                 hasUnsentMessages={this.state.hasUnsentMessages}
                 atEndOfLiveTimeline={this.state.atEndOfLiveTimeline}
@@ -1385,7 +1465,7 @@ module.exports = React.createClass({
                 invitedEmail = this.props.thirdPartyInvite.invitedEmail;
             }
             aux = (
-                <RoomPreviewBar onJoinClick={this.onJoinButtonClicked} canJoin={true}
+                <RoomPreviewBar onJoinClick={this.onJoinButtonClicked}
                                 onRejectClick={this.onRejectThreepidInviteButtonClicked}
                                 spinner={this.state.joining}
                                 inviterName={inviterName}
@@ -1484,6 +1564,8 @@ module.exports = React.createClass({
             hideMessagePanel = true;
         }
 
+        // console.log("ShowUrlPreview for %s is %s", this.state.room.roomId, this.state.showUrlPreview);
+
         var messagePanel = (
             <TimelinePanel ref={this._gatherTimelinePanelRef}
                 room={this.state.room}
@@ -1493,6 +1575,7 @@ module.exports = React.createClass({
                 eventPixelOffset={this.props.eventPixelOffset}
                 onScroll={ this.onMessageListScroll }
                 onReadMarkerUpdated={ this._updateTopUnreadMessagesBar }
+                showUrlPreview = { this.state.showUrlPreview }
                 opacity={ this.props.opacity }
             />);
 

src/components/structures/ScrollPanel.js

@@ -540,7 +540,6 @@ module.exports = React.createClass({
         // it's not obvious why we have a separate div and ol anyway.
         return (<GeminiScrollbar autoshow={true} ref="geminiPanel"
                 onScroll={this.onScroll} onResize={this.onResize}
-                relayoutOnUpdate={false}
                 className={this.props.className} style={this.props.style}>
                     <div className="mx_RoomView_messageListWrapper">
                         <ol ref="itemlist" className="mx_RoomView_MessageList" aria-live="polite">

src/components/structures/TimelinePanel.js

@@ -71,6 +71,9 @@ var TimelinePanel = React.createClass({
         // half way down the viewport.
         eventPixelOffset: React.PropTypes.number,
 
+        // Should we show URL Previews
+        showUrlPreview: React.PropTypes.bool,
+
         // callback which is called when the panel is scrolled.
         onScroll: React.PropTypes.func,
 
@@ -934,6 +937,7 @@ var TimelinePanel = React.createClass({
                     readMarkerEventId={ this.state.readMarkerEventId }
                     readMarkerVisible={ this.state.readMarkerVisible }
                     suppressFirstDateSeparator={ this.state.canBackPaginate }
+                    showUrlPreview = { this.props.showUrlPreview }
                     ourUserId={ MatrixClientPeg.get().credentials.userId }
                     stickyBottom={ stickyBottom }
                     onScroll={ this.onMessageListScroll }

src/components/structures/UserSettings.js

@@ -214,9 +214,10 @@ module.exports = React.createClass({
                 onFinished: this.onEmailDialogFinished,
             });
         }, (err) => {
+            this.setState({email_add_pending: false});
             Modal.createDialog(ErrorDialog, {
                 title: "Unable to add email address",
-                description: err.toString()
+                description: err.message
             });
         });
         ReactDOM.findDOMNode(this.refs.add_threepid_input).blur();
@@ -261,7 +262,64 @@ module.exports = React.createClass({
         });
     },
 
-    _renderDeviceInfo: function() {
+    _renderUserInterfaceSettings: function() {
+        var client = MatrixClientPeg.get();
+
+        var settingsLabels = [
+        /*
+            {
+                id: 'alwaysShowTimestamps',
+                label: 'Always show message timestamps',
+            },
+            {
+                id: 'showTwelveHourTimestamps',
+                label: 'Show timestamps in 12 hour format (e.g. 2:30pm)',
+            },
+            {
+                id: 'useCompactLayout',
+                label: 'Use compact timeline layout',
+            },
+            {
+                id: 'useFixedWidthFont',
+                label: 'Use fixed width font',
+            },
+        */
+        ];
+
+        var syncedSettings = UserSettingsStore.getSyncedSettings();
+
+        return (
+            <div>
+                <h3>User Interface</h3>
+                <div className="mx_UserSettings_section">
+                    <div className="mx_UserSettings_toggle">
+                        <input id="urlPreviewsDisabled"
+                               type="checkbox"
+                               defaultChecked={ UserSettingsStore.getUrlPreviewsDisabled() }
+                               onChange={ e => UserSettingsStore.setUrlPreviewsDisabled(e.target.checked) }
+                        />
+                        <label htmlFor="urlPreviewsDisabled">
+                            Disable inline URL previews by default
+                        </label>
+                    </div>
+                </div>
+                { settingsLabels.forEach( setting => {
+                    <div className="mx_UserSettings_toggle">
+                        <input id={ setting.id }
+                               type="checkbox"
+                               defaultChecked={ syncedSettings[setting.id] }
+                               onChange={ e => UserSettingsStore.setSyncedSetting(setting.id, e.target.checked) }
+                        />
+                        <label htmlFor={ setting.id }>
+                            { settings.label }
+                        </label>
+                    </div>
+                })}
+            </div>
+        );
+    },
+
+    _renderCryptoInfo: function() {
         if (!UserSettingsStore.isFeatureEnabled("e2e_encryption")) {
             return null;
         }
@@ -282,6 +340,45 @@ module.exports = React.createClass({
         );
     },
 
+    _renderDevicesPanel: function() {
+        if (!UserSettingsStore.isFeatureEnabled("e2e_encryption")) {
+            return null;
+        }
+        var DevicesPanel = sdk.getComponent('settings.DevicesPanel');
+        return (
+            <div>
+                <h3>Devices</h3>
+                <DevicesPanel className="mx_UserSettings_section" />
+            </div>
+        );
+    },
+
+    _renderLabs: function () {
+        let features = LABS_FEATURES.map(feature => (
+            <div key={feature.id} className="mx_UserSettings_toggle">
+                <input
+                    type="checkbox"
+                    id={feature.id}
+                    name={feature.id}
+                    defaultChecked={UserSettingsStore.isFeatureEnabled(feature.id)}
+                    onChange={e => {
+                        UserSettingsStore.setFeatureEnabled(feature.id, e.target.checked);
+                        this.forceUpdate();
+                    }}/>
+                <label htmlFor={feature.id}>{feature.name}</label>
+            </div>
+        ));
+        return (
+            <div>
+                <h3>Labs</h3>
+                <div className="mx_UserSettings_section">
+                    <p>These are experimental features that may break in unexpected ways. Use with caution.</p>
+                    {features}
+                </div>
+            </div>
+        )
+    },
+
     render: function() {
         var self = this;
         var Loader = sdk.getComponent("elements.Spinner");
@@ -302,6 +399,7 @@ module.exports = React.createClass({
         var ChangeAvatar = sdk.getComponent('settings.ChangeAvatar');
         var Notifications = sdk.getComponent("settings.Notifications");
         var EditableText = sdk.getComponent('elements.EditableText');
+
         var avatarUrl = (
             this.state.avatarUrl ? MatrixClientPeg.get().mxcUrlToHttp(this.state.avatarUrl) : null
         );
@@ -376,36 +474,11 @@ module.exports = React.createClass({
             </div>);
         }
 
-        this._renderLabs = function () {
-            let features = LABS_FEATURES.map(feature => (
-                <div key={feature.id}>
-                    <input
-                           type="checkbox"
-                           id={feature.id}
-                           name={feature.id}
-                           defaultChecked={UserSettingsStore.isFeatureEnabled(feature.id)}
-                           onChange={e => UserSettingsStore.setFeatureEnabled(feature.id, e.target.checked)} />
-                    <label htmlFor={feature.id}>{feature.name}</label>
-                </div>
-            ));
-            return (
-                <div>
-                    <h3>Labs</h3>
-
-                    <div className="mx_UserSettings_section">
-                        <p>These are experimental features that may break in unexpected ways. Use with caution.</p>
-                        {features}
-                    </div>
-                </div>
-            )
-        };
-
         return (
             <div className="mx_UserSettings">
                 <SimpleRoomHeader title="Settings" onCancelClick={ this.props.onClose }/>
 
                 <GeminiScrollbar className="mx_UserSettings_body"
-                                 relayoutOnUpdate={false}
                                  autoshow={true}>
 
                 <h3>Profile</h3>
@@ -452,9 +525,10 @@ module.exports = React.createClass({
 
                 {notification_area}
 
-                {this._renderDeviceInfo()}
-
+                {this._renderUserInterfaceSettings()}
                 {this._renderLabs()}
+                {this._renderDevicesPanel()}
+                {this._renderCryptoInfo()}
 
                 <h3>Advanced</h3>
 

src/components/structures/login/Login.js

@@ -232,7 +232,9 @@ module.exports = React.createClass({displayName: 'Login',
                 <div className="mx_Login_box">
                     <LoginHeader />
                     <div>
-                        <h2>Sign in</h2>
+                        <h2>Sign in
+                            { loader }
+                        </h2>
                         { this.componentForStep(this._getCurrentFlowStep()) }
                         <ServerConfig ref="serverConfig"
                             withToggleButton={true}
@@ -244,7 +246,6 @@ module.exports = React.createClass({displayName: 'Login',
                             onIsUrlChanged={this.onIsUrlChanged}
                             delayTimeMs={1000}/>
                         <div className="mx_Login_error">
-                                { loader }
                                 { this.state.errorText }
                         </div>
                         <a className="mx_Login_create" onClick={this.props.onRegisterClick} href="#">

src/components/structures/login/Registration.js

@@ -54,6 +54,16 @@ module.exports = React.createClass({
         return {
             busy: false,
             errorText: null,
+            // We remember the values entered by the user because
+            // the registration form will be unmounted during the
+            // course of registration, but if there's an error we
+            // want to bring back the registration form with the
+            // values the user entered still in it. We can keep
+            // them in this component's state since this component
+            // persist for the duration of the registration process.
+            formVals: {
+                email: this.props.email,
+            },
         };
     },
 
@@ -108,7 +118,8 @@ module.exports = React.createClass({
         var self = this;
         this.setState({
             errorText: "",
-            busy: true
+            busy: true,
+            formVals: formVals,
         });
 
         if (formVals.username !== this.props.username) {
@@ -228,11 +239,15 @@ module.exports = React.createClass({
                 break; // NOP
             case "Register.START":
             case "Register.STEP_m.login.dummy":
+                // NB. Our 'username' prop is specifically for upgrading
+                // a guest account
                 registerStep = (
                     <RegistrationForm
                         showEmail={true}
-                        defaultUsername={this.props.username}
-                        defaultEmail={this.props.email}
+                        defaultUsername={this.state.formVals.username}
+                        defaultEmail={this.state.formVals.email}
+                        defaultPassword={this.state.formVals.password}
+                        guestUsername={this.props.username}
                         minPasswordLength={MIN_PASSWORD_LENGTH}
                         onError={this.onFormValidationFailed}
                         onRegisterClick={this.onFormSubmit} />

src/components/views/avatars/BaseAvatar.js

@@ -18,6 +18,7 @@ limitations under the License.
 
 var React = require('react');
 var AvatarLogic = require("../../../Avatar");
+import {emojifyText} from '../../../HtmlUtils';
 
 module.exports = React.createClass({
     displayName: 'BaseAvatar',
@@ -132,32 +133,36 @@ module.exports = React.createClass({
     },
 
     render: function() {
-        var name = this.props.name;
-
         var imageUrl = this.state.imageUrls[this.state.urlsIndex];
 
+        const {
+            name, idName, title, url, urls, width, height, resizeMethod,
+            defaultToInitialLetter,
+            ...otherProps
+        } = this.props;
+
         if (imageUrl === this.state.defaultImageUrl) {
-            var initialLetter = this._getInitialLetter(this.props.name);
+            var initialLetter = emojifyText(this._getInitialLetter(name));
             return (
-                <span className="mx_BaseAvatar" {...this.props}>
+                <span className="mx_BaseAvatar" {...otherProps}>
                     <span className="mx_BaseAvatar_initial" aria-hidden="true"
-                            style={{ fontSize: (this.props.width * 0.65) + "px",
-                                    width: this.props.width + "px",
-                                    lineHeight: this.props.height + "px" }}>
-                        { initialLetter }
+                            style={{ fontSize: (width * 0.65) + "px",
+                                    width: width + "px",
+                                    lineHeight: height + "px" }}
+                            dangerouslySetInnerHTML={initialLetter}>
                     </span>
                     <img className="mx_BaseAvatar_image" src={imageUrl}
-                        alt="" title={this.props.title} onError={this.onError}
-                        width={this.props.width} height={this.props.height} />
+                        alt="" title={title} onError={this.onError}
+                        width={width} height={height} />
                 </span>
             );
         }
         return (
             <img className="mx_BaseAvatar mx_BaseAvatar_image" src={imageUrl}
                 onError={this.onError}
-                width={this.props.width} height={this.props.height}
-                title={this.props.title} alt=""
-                {...this.props} />
+                width={width} height={height}
+                title={title} alt=""
+                {...otherProps} />
         );
     }
 });

src/components/views/avatars/MemberAvatar.js

@@ -59,9 +59,12 @@ module.exports = React.createClass({
 
     render: function() {
         var BaseAvatar = sdk.getComponent("avatars.BaseAvatar");
+
+        var {member, ...otherProps} = this.props;
+
         return (
-            <BaseAvatar {...this.props} name={this.state.name} title={this.state.title}
-                idName={this.props.member.userId} url={this.state.imageUrl} />
+            <BaseAvatar {...otherProps} name={this.state.name} title={this.state.title}
+                idName={member.userId} url={this.state.imageUrl} />
         );
     }
 });

src/components/views/avatars/RoomAvatar.js

@@ -126,11 +126,13 @@ module.exports = React.createClass({
     render: function() {
         var BaseAvatar = sdk.getComponent("avatars.BaseAvatar");
 
-        var roomName = this.props.room ? this.props.room.name : this.props.oobData.name;
+        var {room, oobData, ...otherProps} = this.props;
+
+        var roomName = room ? room.name : oobData.name;
 
         return (
-            <BaseAvatar {...this.props} name={roomName}
-                idName={this.props.room ? this.props.room.roomId : null}
+            <BaseAvatar {...otherProps} name={roomName}
+                idName={room ? room.roomId : null}
                 urls={this.state.urls} />
         );
     }

src/components/views/dialogs/ErrorDialog.js

@@ -59,7 +59,7 @@ module.exports = React.createClass({
                     {this.props.description}
                 </div>
                 <div className="mx_Dialog_buttons">
-                    <button onClick={this.props.onFinished} autoFocus={this.props.focus}>
+                    <button className="mx_Dialog_primary" onClick={this.props.onFinished} autoFocus={this.props.focus}>
                         {this.props.button}
                     </button>
                 </div>

src/components/views/dialogs/LogoutPrompt.js

@@ -46,7 +46,7 @@ module.exports = React.createClass({
                     Sign out?
                 </div>
                 <div className="mx_Dialog_buttons" onKeyDown={ this.onKeyDown }>
-                    <button autoFocus onClick={this.logOut}>Sign Out</button>
+                    <button className="mx_Dialog_primary" autoFocus onClick={this.logOut}>Sign Out</button>
                     <button onClick={this.cancelPrompt}>Cancel</button>
                 </div>
             </div>

src/components/views/dialogs/NeedToRegisterDialog.js

@@ -63,7 +63,7 @@ module.exports = React.createClass({
                     {this.props.description}
                 </div>
                 <div className="mx_Dialog_buttons">
-                    <button onClick={this.props.onFinished} autoFocus={true}>
+                    <button className="mx_Dialog_primary" onClick={this.props.onFinished} autoFocus={true}>
                         Cancel
                     </button>
                     <button onClick={this.onRegisterClicked}>

src/components/views/dialogs/QuestionDialog.js

@@ -56,7 +56,7 @@ module.exports = React.createClass({
                     {this.props.description}
                 </div>
                 <div className="mx_Dialog_buttons">
-                    <button onClick={this.onOk} autoFocus={this.props.focus}>
+                    <button className="mx_Dialog_primary" onClick={this.onOk} autoFocus={this.props.focus}>
                         {this.props.button}
                     </button>
 

src/components/views/dialogs/SetDisplayNameDialog.js

@@ -76,7 +76,7 @@ module.exports = React.createClass({
                         />
                     </div>
                     <div className="mx_Dialog_buttons">
-                        <input type="submit" value="Set" />
+                        <input className="mx_Dialog_primary" type="submit" value="Set" />
                     </div>
                 </form>
             </div>

src/components/views/dialogs/TextInputDialog.js

@@ -86,7 +86,7 @@ module.exports = React.createClass({
                     <button onClick={this.onCancel}>
                         Cancel
                     </button>
-                    <button onClick={this.onOk}>
+                    <button className="mx_Dialog_primary" onClick={this.onOk}>
                         {this.props.button}
                     </button>
                 </div>

src/components/views/elements/EditableText.js

@@ -49,6 +49,8 @@ module.exports = React.createClass({
             label: '',
             placeholder: '',
             editable: true,
+            className: "mx_EditableText",
+            placeholderClassName: "mx_EditableText_placeholder",
         };
     },
 
@@ -92,7 +94,7 @@ module.exports = React.createClass({
             this.refs.editable_div.textContent = this.value;
             this.refs.editable_div.setAttribute("class", this.props.className);
             this.placeholder = false;
-        }            
+        }
     },
 
     getValue: function() {
@@ -101,7 +103,7 @@ module.exports = React.createClass({
 
     setValue: function(value) {
         this.value = value;
-        this.showPlaceholder(!this.value);        
+        this.showPlaceholder(!this.value);
     },
 
     edit: function() {
@@ -125,7 +127,7 @@ module.exports = React.createClass({
 
     onKeyDown: function(ev) {
         // console.log("keyDown: textContent=" + ev.target.textContent + ", value=" + this.value + ", placeholder=" + this.placeholder);
-        
+
         if (this.placeholder) {
             this.showPlaceholder(false);
         }
@@ -173,7 +175,7 @@ module.exports = React.createClass({
             var range = document.createRange();
             range.setStart(node, 0);
             range.setEnd(node, node.length);
-            
+
             var sel = window.getSelection();
             sel.removeAllRanges();
             sel.addRange(range);

src/components/views/elements/EditableTextContainer.js

@@ -0,0 +1,147 @@
+/*
+Copyright 2015, 2016 OpenMarket Ltd
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+import React from 'react';
+import sdk from '../../../index';
+import q from 'q';
+
+/**
+ * A component which wraps an EditableText, with a spinner while updates take
+ * place.
+ *
+ * Parent components should supply an 'onSubmit' callback which returns a
+ * promise; a spinner is shown until the promise resolves.
+ *
+ * The parent can also supply a 'getIntialValue' callback, which works in a
+ * similarly asynchronous way. If this is not provided, the initial value is
+ * taken from the 'initialValue' property.
+ */
+export default class EditableTextContainer extends React.Component {
+    constructor(props, context) {
+        super(props, context);
+
+        this._unmounted = false;
+        this.state = {
+            busy: false,
+            errorString: null,
+            value: props.initialValue,
+        };
+        this._onValueChanged = this._onValueChanged.bind(this);
+    }
+
+    componentWillMount() {
+        if (this.props.getInitialValue === undefined) {
+            // use whatever was given in the initialValue property.
+            return;
+        }
+
+        this.setState({busy: true});
+
+        this.props.getInitialValue().done(
+            (result) => {
+                if (this._unmounted) { return; }
+                this.setState({
+                    busy: false,
+                    value: result,
+                });
+            },
+            (error) => {
+                if (this._unmounted) { return; }
+                this.setState({
+                    errorString: error.toString(),
+                    busy: false,
+                });
+            }
+        );
+    }
+
+    componentWillUnmount() {
+        this._unmounted = true;
+    }
+
+    _onValueChanged(value, shouldSubmit) {
+        if (!shouldSubmit) {
+            return;
+        }
+
+        this.setState({
+            busy: true,
+            errorString: null,
+        });
+
+        this.props.onSubmit(value).done(
+            () => {
+                if (this._unmounted) { return; }
+                this.setState({
+                    busy: false,
+                    value: value,
+                });
+            },
+            (error) => {
+                if (this._unmounted) { return; }
+                this.setState({
+                    errorString: error.toString(),
+                    busy: false,
+                });
+            }
+        );
+    }
+
+    render() {
+        if (this.state.busy) {
+            var Loader = sdk.getComponent("elements.Spinner");
+            return (
+                <Loader />
+            );
+        } else if (this.state.errorString) {
+            return (
+                <div className="error">{this.state.errorString}</div>
+            );
+        } else {
+            var EditableText = sdk.getComponent('elements.EditableText');
+            return (
+                <EditableText initialValue={this.state.value}
+                    placeholder={this.props.placeholder}
+                    onValueChanged={this._onValueChanged}
+                />
+            );
+        }
+    }
+
+}
+
+EditableTextContainer.propTypes = {
+    /* callback to retrieve the initial value. */
+    getInitialValue: React.PropTypes.func,
+
+    /* initial value; used if getInitialValue is not given */
+    initialValue: React.PropTypes.string,
+
+    /* placeholder text to use when the value is empty (and not being
+     * edited) */
+    placeholder: React.PropTypes.string,
+
+    /* callback to update the value. Called with a single argument: the new
+     * value. */
+    onSubmit: React.PropTypes.func,
+};
+
+
+EditableTextContainer.defaultProps = {
+    initialValue: "",
+    placeholder: "",
+    onSubmit: function(v) {return q(); },
+};

src/components/views/elements/PowerSelector.js

@@ -34,10 +34,15 @@ module.exports = React.createClass({
 
     propTypes: {
         value: React.PropTypes.number.isRequired,
+
         // if true, the <select/> should be a 'controlled' form element and updated by React
         // to reflect the current value, rather than left freeform.
         // MemberInfo uses controlled; RoomSettings uses non-controlled.
-        controlled: React.PropTypes.bool.isRequired,
+        //
+        // ignored if disabled is truthy. false by default.
+        controlled: React.PropTypes.bool,
+
+        // should the user be able to change the value? false by default.
         disabled: React.PropTypes.bool,
         onChange: React.PropTypes.func,
     },

src/components/views/login/RegistrationForm.js

@@ -35,8 +35,16 @@ module.exports = React.createClass({
     displayName: 'RegistrationForm',
 
     propTypes: {
+        // Values pre-filled in the input boxes when the component loads
         defaultEmail: React.PropTypes.string,
         defaultUsername: React.PropTypes.string,
+        defaultPassword: React.PropTypes.string,
+
+        // A username that will be used if no username is entered.
+        // Specifying this param will also warn the user that entering
+        // a different username will cause a fresh account to be generated.
+        guestUsername: React.PropTypes.string,
+
         showEmail: React.PropTypes.bool,
         minPasswordLength: React.PropTypes.number,
         onError: React.PropTypes.func,
@@ -55,10 +63,6 @@ module.exports = React.createClass({
 
     getInitialState: function() {
         return {
-            email: this.props.defaultEmail,
-            username: null,
-            password: null,
-            passwordConfirm: null,
             fieldValid: {}
         };
     },
@@ -103,7 +107,7 @@ module.exports = React.createClass({
 
     _doSubmit: function() {
         var promise = this.props.onRegisterClick({
-            username: this.refs.username.value.trim() || this.props.defaultUsername,
+            username: this.refs.username.value.trim() || this.props.guestUsername,
             password: this.refs.password.value.trim(),
             email: this.refs.email.value.trim()
         });
@@ -144,7 +148,7 @@ module.exports = React.createClass({
                 break;
             case FIELD_USERNAME:
                 // XXX: SPEC-1
-                var username = this.refs.username.value.trim() || this.props.defaultUsername;
+                var username = this.refs.username.value.trim() || this.props.guestUsername;
                 if (encodeURIComponent(username) != username) {
                     this.markFieldValid(
                         field_id,
@@ -225,7 +229,7 @@ module.exports = React.createClass({
             emailSection = (
                 <input className="mx_Login_field" type="text" ref="email"
                     autoFocus={true} placeholder="Email address (optional)"
-                    defaultValue={this.state.email}
+                    defaultValue={this.props.defaultEmail}
                     style={this._styleField(FIELD_EMAIL)}
                     onBlur={function() {self.validateField(FIELD_EMAIL)}} />
             );
@@ -237,8 +241,8 @@ module.exports = React.createClass({
         }
 
         var placeholderUserName = "User name";
-        if (this.props.defaultUsername) {
-            placeholderUserName += " (default: " + this.props.defaultUsername + ")"
+        if (this.props.guestUsername) {
+            placeholderUserName += " (default: " + this.props.guestUsername + ")"
         }
 
         return (
@@ -247,23 +251,23 @@ module.exports = React.createClass({
                     {emailSection}
                     <br />
                     <input className="mx_Login_field" type="text" ref="username"
-                        placeholder={ placeholderUserName } defaultValue={this.state.username}
+                        placeholder={ placeholderUserName } defaultValue={this.props.defaultUsername}
                         style={this._styleField(FIELD_USERNAME)}
                         onBlur={function() {self.validateField(FIELD_USERNAME)}} />
                     <br />
-                    { this.props.defaultUsername ?
+                    { this.props.guestUsername ?
                         <div className="mx_Login_fieldLabel">Setting a user name will create a fresh account</div> : null
                     }
                     <input className="mx_Login_field" type="password" ref="password"
                         style={this._styleField(FIELD_PASSWORD)}
                         onBlur={function() {self.validateField(FIELD_PASSWORD)}}
-                        placeholder="Password" defaultValue={this.state.password} />
+                        placeholder="Password" defaultValue={this.props.defaultPassword} />
                     <br />
                     <input className="mx_Login_field" type="password" ref="passwordConfirm"
                         placeholder="Confirm password"
                         style={this._styleField(FIELD_PASSWORD_CONFIRM)}
                         onBlur={function() {self.validateField(FIELD_PASSWORD_CONFIRM)}}
-                        defaultValue={this.state.passwordConfirm} />
+                        defaultValue={this.props.defaultPassword} />
                     <br />
                     {registerButton}
                 </form>

src/components/views/messages/MVideoBody.js

@@ -34,7 +34,7 @@ module.exports = React.createClass({
         }
         if (fullWidth < thumbWidth && fullHeight < thumbHeight) {
             // no scaling needs to be applied
-            return fullHeight;
+            return 1;
         }
         var widthMulti = thumbWidth / fullWidth;
         var heightMulti = thumbHeight / fullHeight;

src/components/views/messages/MessageEvent.js

@@ -38,6 +38,9 @@ module.exports = React.createClass({
         /* link URL for the highlights */
         highlightLink: React.PropTypes.string,
 
+        /* should show URL previews for this event */
+        showUrlPreview: React.PropTypes.bool,
+
         /* callback called when dynamic content in events are loaded */
         onWidgetLoad: React.PropTypes.func,
     },
@@ -71,6 +74,7 @@ module.exports = React.createClass({
 
         return <BodyType ref="body" mxEvent={this.props.mxEvent} highlights={this.props.highlights}
                     highlightLink={this.props.highlightLink}
+                    showUrlPreview={this.props.showUrlPreview}
                     onWidgetLoad={this.props.onWidgetLoad} />;
     },
 });

src/components/views/messages/TextualBody.js

@@ -39,6 +39,9 @@ module.exports = React.createClass({
         /* link URL for the highlights */
         highlightLink: React.PropTypes.string,
 
+        /* should show URL previews for this event */
+        showUrlPreview: React.PropTypes.bool,
+
         /* callback for when our widget has loaded */
         onWidgetLoad: React.PropTypes.func,
     },
@@ -56,34 +59,47 @@ module.exports = React.createClass({
 
     componentDidMount: function() {
         linkifyElement(this.refs.content, linkifyMatrix.options);
-
-        var links = this.findLinks(this.refs.content.children);
-        if (links.length) {
-            this.setState({ links: links.map((link)=>{
-                return link.getAttribute("href");
-            })});
-
-            // lazy-load the hidden state of the preview widget from localstorage
-            if (global.localStorage) {
-                var hidden = global.localStorage.getItem("hide_preview_" + this.props.mxEvent.getId());
-                this.setState({ widgetHidden: hidden });
-            }
-        }
+        this.calculateUrlPreview();
 
         if (this.props.mxEvent.getContent().format === "org.matrix.custom.html")
             HtmlUtils.highlightDom(ReactDOM.findDOMNode(this));
     },
 
+    componentDidUpdate: function() {
+        this.calculateUrlPreview();
+    },
+
     shouldComponentUpdate: function(nextProps, nextState) {
+        //console.log("shouldComponentUpdate: ShowUrlPreview for %s is %s", this.props.mxEvent.getId(), this.props.showUrlPreview);
+
         // exploit that events are immutable :)
-        // ...and that .links is only ever set in componentDidMount and never changes
         return (nextProps.mxEvent.getId() !== this.props.mxEvent.getId() ||
                 nextProps.highlights !== this.props.highlights ||
                 nextProps.highlightLink !== this.props.highlightLink ||
+                nextProps.showUrlPreview !== this.props.showUrlPreview ||
                 nextState.links !== this.state.links ||
                 nextState.widgetHidden !== this.state.widgetHidden);
     },
 
+    calculateUrlPreview: function() {
+        //console.log("calculateUrlPreview: ShowUrlPreview for %s is %s", this.props.mxEvent.getId(), this.props.showUrlPreview);
+
+        if (this.props.showUrlPreview && !this.state.links.length) {
+            var links = this.findLinks(this.refs.content.children);
+            if (links.length) {
+                this.setState({ links: links.map((link)=>{
+                    return link.getAttribute("href");
+                })});
+
+                // lazy-load the hidden state of the preview widget from localstorage
+                if (global.localStorage) {
+                    var hidden = global.localStorage.getItem("hide_preview_" + this.props.mxEvent.getId());
+                    this.setState({ widgetHidden: hidden });
+                }
+            }
+        }
+    },
+
     findLinks: function(nodes) {
         var links = [];
         for (var i = 0; i < nodes.length; i++) {
@@ -163,12 +179,14 @@ module.exports = React.createClass({
     render: function() {
         var mxEvent = this.props.mxEvent;
         var content = mxEvent.getContent();
-        var body = HtmlUtils.bodyToHtml(content, this.props.highlights,
-                                       {highlightLink: this.props.highlightLink});
+        var body = HtmlUtils.bodyToHtml(content, this.props.highlights, {});
 
+        if (this.props.highlightLink) {
+            body = <a href={ this.props.highlightLink }>{ body }</a>;
+        }
 
         var widgets;
-        if (this.state.links.length && !this.state.widgetHidden) {
+        if (this.state.links.length && !this.state.widgetHidden && this.props.showUrlPreview) {
             var LinkPreviewWidget = sdk.getComponent('rooms.LinkPreviewWidget');
             widgets = this.state.links.map((link)=>{
                 return <LinkPreviewWidget

src/components/views/messages/TextualEvent.js

@@ -19,6 +19,7 @@ limitations under the License.
 var React = require('react');
 
 var TextForEvent = require('../../../TextForEvent');
+import {emojifyText} from '../../../HtmlUtils';
 
 module.exports = React.createClass({
     displayName: 'TextualEvent',
@@ -31,11 +32,11 @@ module.exports = React.createClass({
 
     render: function() {
         var text = TextForEvent.textForEvent(this.props.mxEvent);
-        if (text == null || text.length == 0) return null;
+        if (text == null || text.length === 0) return null;
+        let textHTML = emojifyText(TextForEvent.textForEvent(this.props.mxEvent));
 
         return (
-            <div className="mx_TextualEvent">
-                {TextForEvent.textForEvent(this.props.mxEvent)}
+            <div className="mx_TextualEvent" dangerouslySetInnerHTML={textHTML}>
             </div>
         );
     },

src/components/views/room_settings/AliasSettings.js

@@ -83,13 +83,11 @@ module.exports = React.createClass({
                         alias: this.state.canonicalAlias
                     }, ""
                 )
-            );            
+            );
         }
 
-
         // save new aliases for m.room.aliases
         var aliasOperations = this.getAliasOperations();
-        var promises = [];
         for (var i = 0; i < aliasOperations.length; i++) {
             var alias_operation = aliasOperations[i];
             console.log("alias %s %s", alias_operation.place, alias_operation.val);
@@ -301,7 +299,7 @@ module.exports = React.createClass({
                             <div className="mx_RoomSettings_addAlias">
                                  <img src="img/plus.svg" width="14" height="14" alt="Add"
                                       onClick={ self.onAliasAdded.bind(self, undefined) }/>
-                            </div>                        
+                            </div>
                         </div> : ""
                     }
                 </div>

src/components/views/room_settings/ColorSettings.js

@@ -57,7 +57,7 @@ module.exports = React.createClass({
         data.primary_color = scheme.primary_color;
         data.secondary_color = scheme.secondary_color;
         data.index = this._getColorIndex(data);
-        
+
         if (data.index === -1) {
             // append the unrecognised colours to our palette
             data.index = ROOM_COLORS.length;

src/components/views/room_settings/UrlPreviewSettings.js

@@ -0,0 +1,157 @@
+/*
+Copyright 2016 OpenMarket Ltd
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+var q = require("q");
+var React = require('react');
+var MatrixClientPeg = require('../../../MatrixClientPeg');
+var sdk = require("../../../index");
+var Modal = require("../../../Modal");
+var UserSettingsStore = require('../../../UserSettingsStore');
+
+
+module.exports = React.createClass({
+    displayName: 'UrlPreviewSettings',
+
+    propTypes: {
+        room: React.PropTypes.object,
+    },
+
+    getInitialState: function() {
+        var cli = MatrixClientPeg.get();
+        var roomState = this.props.room.currentState;
+
+        var roomPreviewUrls = this.props.room.currentState.getStateEvents('org.matrix.room.preview_urls', '');
+        var userPreviewUrls = this.props.room.getAccountData("org.matrix.room.preview_urls");
+
+        return {
+            globalDisableUrlPreview: (roomPreviewUrls && roomPreviewUrls.getContent().disable) || false,
+            userDisableUrlPreview: (userPreviewUrls && (userPreviewUrls.getContent().disable === true)) || false,
+            userEnableUrlPreview: (userPreviewUrls && (userPreviewUrls.getContent().disable === false)) || false,
+        };
+    },
+
+    componentDidMount: function() {
+        this.originalState = Object.assign({}, this.state);
+    },
+
+    saveSettings: function() {
+        var promises = [];
+
+        if (this.state.globalDisableUrlPreview !== this.originalState.globalDisableUrlPreview) {
+            console.log("UrlPreviewSettings: Updating room's preview_urls state event");
+            promises.push(
+                MatrixClientPeg.get().sendStateEvent(
+                    this.props.room.roomId, "org.matrix.room.preview_urls", {
+                        disable: this.state.globalDisableUrlPreview
+                    }, ""
+                )
+            );
+        }
+
+        var content = undefined;
+        if (this.state.userDisableUrlPreview !== this.originalState.userDisableUrlPreview) {
+            console.log("UrlPreviewSettings: Disabling user's per-room preview_urls");
+            content = this.state.userDisableUrlPreview ? { disable : true } : {};
+        }
+
+        if (this.state.userEnableUrlPreview !== this.originalState.userEnableUrlPreview) {
+            console.log("UrlPreviewSettings: Enabling user's per-room preview_urls");
+            if (!content || content.disable === undefined) {
+                content = this.state.userEnableUrlPreview ? { disable : false } : {};
+            }
+        }
+
+        if (content) {
+            promises.push(
+                MatrixClientPeg.get().setRoomAccountData(
+                    this.props.room.roomId, "org.matrix.room.preview_urls", content
+                )
+            );
+        }
+
+        console.log("UrlPreviewSettings: saveSettings: " + JSON.stringify(promises));
+
+        return promises;
+    },
+
+    onGlobalDisableUrlPreviewChange: function() {
+        this.setState({
+            globalDisableUrlPreview: this.refs.globalDisableUrlPreview.checked ? true : false,
+        });
+    },
+
+    onUserEnableUrlPreviewChange: function() {
+        this.setState({
+            userDisableUrlPreview: false,
+            userEnableUrlPreview: this.refs.userEnableUrlPreview.checked ? true : false,
+        });
+    },
+
+    onUserDisableUrlPreviewChange: function() {
+        this.setState({
+            userDisableUrlPreview: this.refs.userDisableUrlPreview.checked ? true : false,
+            userEnableUrlPreview: false,
+        });
+    },
+
+    render: function() {
+        var self = this;
+        var roomState = this.props.room.currentState;
+        var cli = MatrixClientPeg.get();
+
+        var maySetRoomPreviewUrls = roomState.mayClientSendStateEvent('org.matrix.room.preview_urls', cli);
+        var disableRoomPreviewUrls;
+        if (maySetRoomPreviewUrls) {
+            disableRoomPreviewUrls =
+                <label>
+                    <input type="checkbox" ref="globalDisableUrlPreview"
+                           onChange={ this.onGlobalDisableUrlPreviewChange }
+                           checked={ this.state.globalDisableUrlPreview } />
+                    Disable URL previews by default for participants in this room
+                </label>
+        }
+        else {
+            disableRoomPreviewUrls =
+                <label>
+                    URL previews are { this.state.globalDisableUrlPreview ? "disabled" : "enabled" } by default for participants in this room.
+                </label>
+        }
+
+        return (
+            <div className="mx_RoomSettings_toggles">
+                <h3>URL Previews</h3>
+
+                <label>
+                    You have <a href="#/settings">{ UserSettingsStore.getUrlPreviewsDisabled() ? 'disabled' : 'enabled' }</a> URL previews by default.
+                </label>
+                { disableRoomPreviewUrls }
+                <label>
+                    <input type="checkbox" ref="userEnableUrlPreview"
+                           onChange={ this.onUserEnableUrlPreviewChange }
+                           checked={ this.state.userEnableUrlPreview } />
+                    Enable URL previews for this room (affects only you)
+                </label>
+                <label>
+                    <input type="checkbox" ref="userDisableUrlPreview"
+                           onChange={ this.onUserDisableUrlPreviewChange }
+                           checked={ this.state.userDisableUrlPreview } />
+                    Disable URL previews for this room (affects only you)
+                </label>
+            </div>
+        );
+
+    }
+});

src/components/views/rooms/Autocomplete.js

@@ -0,0 +1,164 @@
+import React from 'react';
+import ReactCSSTransitionGroup from 'react-addons-css-transition-group';
+import classNames from 'classnames';
+import flatMap from 'lodash/flatMap';
+
+import {getCompletions} from '../../../autocomplete/Autocompleter';
+
+export default class Autocomplete extends React.Component {
+    constructor(props) {
+        super(props);
+
+        this.onConfirm = this.onConfirm.bind(this);
+
+        this.state = {
+            // list of completionResults, each containing completions
+            completions: [],
+
+            // array of completions, so we can look up current selection by offset quickly
+            completionList: [],
+
+            // how far down the completion list we are
+            selectionOffset: 0,
+        };
+    }
+
+    componentWillReceiveProps(props, state) {
+        if (props.query === this.props.query) {
+            return;
+        }
+
+        getCompletions(props.query, props.selection).forEach(completionResult => {
+            try {
+                completionResult.completions.then(completions => {
+                    let i = this.state.completions.findIndex(
+                        completion => completion.provider === completionResult.provider
+                    );
+
+                    i = i === -1 ? this.state.completions.length : i;
+                    let newCompletions = Object.assign([], this.state.completions);
+                    completionResult.completions = completions;
+                    newCompletions[i] = completionResult;
+
+                    this.setState({
+                        completions: newCompletions,
+                        completionList: flatMap(newCompletions, provider => provider.completions),
+                    });
+                }, err => {
+                    console.error(err);
+                });
+            } catch (e) {
+                // An error in one provider shouldn't mess up the rest.
+                console.error(e);
+            }
+        });
+    }
+
+    countCompletions(): number {
+        return this.state.completions.map(completionResult => {
+            return completionResult.completions.length;
+        }).reduce((l, r) => l + r);
+    }
+
+    // called from MessageComposerInput
+    onUpArrow(): boolean {
+        let completionCount = this.countCompletions(),
+            selectionOffset = (completionCount + this.state.selectionOffset - 1) % completionCount;
+        if (!completionCount) {
+            return false;
+        }
+        this.setSelection(selectionOffset);
+        return true;
+    }
+
+    // called from MessageComposerInput
+    onDownArrow(): boolean {
+        let completionCount = this.countCompletions(),
+            selectionOffset = (this.state.selectionOffset + 1) % completionCount;
+        if (!completionCount) {
+            return false;
+        }
+        this.setSelection(selectionOffset);
+        return true;
+    }
+
+    /** called from MessageComposerInput
+     * @returns {boolean} whether confirmation was handled
+     */
+    onConfirm(): boolean {
+        if (this.countCompletions() === 0) {
+            return false;
+        }
+
+        let selectedCompletion = this.state.completionList[this.state.selectionOffset];
+        this.props.onConfirm(selectedCompletion.range, selectedCompletion.completion);
+
+        return true;
+    }
+
+    setSelection(selectionOffset: number) {
+        this.setState({selectionOffset});
+    }
+
+    render() {
+        let position = 0;
+        let renderedCompletions = this.state.completions.map((completionResult, i) => {
+            let completions = completionResult.completions.map((completion, i) => {
+                let className = classNames('mx_Autocomplete_Completion', {
+                    'selected': position === this.state.selectionOffset,
+                });
+                let componentPosition = position;
+                position++;
+
+                let onMouseOver = () => this.setSelection(componentPosition);
+                let onClick = () => {
+                    this.setSelection(componentPosition);
+                    this.onConfirm();
+                };
+
+                return (
+                    <div key={i}
+                         className={className}
+                         onMouseOver={onMouseOver}
+                         onClick={onClick}>
+                        {completion.component}
+                    </div>
+                );
+            });
+
+
+            return completions.length > 0 ? (
+                <div key={i} className="mx_Autocomplete_ProviderSection">
+                    <span className="mx_Autocomplete_provider_name">{completionResult.provider.getName()}</span>
+                    <ReactCSSTransitionGroup
+                        component="div"
+                        transitionName="autocomplete"
+                        transitionEnterTimeout={300}
+                        transitionLeaveTimeout={300}>
+                        {completions}
+                    </ReactCSSTransitionGroup>
+                </div>
+            ) : null;
+        });
+
+        return (
+            <div className="mx_Autocomplete">
+                <ReactCSSTransitionGroup
+                    component="div"
+                    transitionName="autocomplete"
+                    transitionEnterTimeout={300}
+                    transitionLeaveTimeout={300}>
+                    {renderedCompletions}
+                </ReactCSSTransitionGroup>
+            </div>
+        );
+    }
+}
+
+Autocomplete.propTypes = {
+    // the query string for which to show autocomplete suggestions
+    query: React.PropTypes.string.isRequired,
+
+    // method invoked with range and text content when completion is confirmed
+    onConfirm: React.PropTypes.func.isRequired,
+};

src/components/views/rooms/EntityTile.js

@@ -20,6 +20,7 @@ var React = require('react');
 
 var MatrixClientPeg = require('../../../MatrixClientPeg');
 var sdk = require('../../../index');
+import {emojifyText} from '../../../HtmlUtils';
 
 
 var PRESENCE_CLASS = {
@@ -28,6 +29,23 @@ var PRESENCE_CLASS = {
     "unavailable": "mx_EntityTile_unavailable"
 };
 
+
+function presenceClassForMember(presenceState, lastActiveAgo) {
+    // offline is split into two categories depending on whether we have
+    // a last_active_ago for them.
+    if (presenceState == 'offline') {
+        if (lastActiveAgo) {
+            return PRESENCE_CLASS['offline'] + '_beenactive';
+        } else {
+            return PRESENCE_CLASS['offline'] + '_neveractive';
+        }
+    } else if (presenceState) {
+        return PRESENCE_CLASS[presenceState];
+    } else {
+        return PRESENCE_CLASS['offline'] + '_neveractive';
+    }
+}
+
 module.exports = React.createClass({
     displayName: 'EntityTile',
 
@@ -78,10 +96,14 @@ module.exports = React.createClass({
     },
 
     render: function() {
-        var presenceClass = PRESENCE_CLASS[this.props.presenceState] || "mx_EntityTile_offline";
+        const presenceClass = presenceClassForMember(
+            this.props.presenceState, this.props.presenceLastActiveAgo
+        );
+
         var mainClassName = "mx_EntityTile ";
         mainClassName += presenceClass + (this.props.className ? (" " + this.props.className) : "");
         var nameEl;
+        let nameHTML = emojifyText(this.props.name);
 
         if (this.state.hover && !this.props.suppressOnHover) {
             var activeAgo = this.props.presenceLastActiveAgo ?
@@ -92,7 +114,7 @@ module.exports = React.createClass({
             nameEl = (
                 <div className="mx_EntityTile_details">
                     <img className="mx_EntityTile_chevron" src="img/member_chevron.png" width="8" height="12"/>
-                    <div className="mx_EntityTile_name_hover">{ this.props.name }</div>
+                    <div className="mx_EntityTile_name_hover" dangerouslySetInnerHTML={nameHTML}></div>
                     <PresenceLabel activeAgo={ activeAgo }
                         currentlyActive={this.props.presenceCurrentlyActive}
                         presenceState={this.props.presenceState} />
@@ -101,8 +123,7 @@ module.exports = React.createClass({
         }
         else {
             nameEl = (
-                <div className="mx_EntityTile_name">
-                    { this.props.name }
+                <div className="mx_EntityTile_name" dangerouslySetInnerHTML={nameHTML}>
                 </div>
             );
         }

src/components/views/rooms/EventTile.js

@@ -23,7 +23,7 @@ var sdk = require('../../../index');
 var MatrixClientPeg = require('../../../MatrixClientPeg')
 var TextForEvent = require('../../../TextForEvent');
 
-var ContextualMenu = require('../../../ContextualMenu');
+var ContextualMenu = require('../../structures/ContextualMenu');
 var dispatcher = require("../../../dispatcher");
 
 var ObjectUtils = require('../../../ObjectUtils');
@@ -101,6 +101,9 @@ module.exports = React.createClass({
         /* link URL for the highlights */
         highlightLink: React.PropTypes.string,
 
+        /* should show URL previews for this event */
+        showUrlPreview: React.PropTypes.bool,
+
         /* is this the focused event */
         isSelectedEvent: React.PropTypes.bool,
 
@@ -139,7 +142,8 @@ module.exports = React.createClass({
 
     componentDidMount: function() {
         this._suppressReadReceiptAnimation = false;
-        MatrixClientPeg.get().on("deviceVerified", this.onDeviceVerified);
+        MatrixClientPeg.get().on("deviceVerificationChanged",
+                                 this.onDeviceVerificationChanged);
     },
 
     componentWillReceiveProps: function (nextProps) {
@@ -163,11 +167,12 @@ module.exports = React.createClass({
     componentWillUnmount: function() {
         var client = MatrixClientPeg.get();
         if (client) {
-            client.removeListener("deviceVerified", this.onDeviceVerified);
+            client.removeListener("deviceVerificationChanged",
+                                  this.onDeviceVerificationChanged);
         }
     },
 
-    onDeviceVerified: function(userId, device) {
+    onDeviceVerificationChanged: function(userId, device) {
         if (userId == this.props.mxEvent.getSender()) {
             this._verifyEvent(this.props.mxEvent);
         }
@@ -244,12 +249,15 @@ module.exports = React.createClass({
     },
 
     onEditClicked: function(e) {
-        var MessageContextMenu = sdk.getComponent('rooms.MessageContextMenu');
+        var MessageContextMenu = sdk.getComponent('context_menus.MessageContextMenu');
         var buttonRect = e.target.getBoundingClientRect()
-        var x = buttonRect.right;
-        var y = buttonRect.top + (e.target.height / 2);
+
+        // The window X and Y offsets are to adjust position when zoomed in to page
+        var x = buttonRect.right + window.pageXOffset;
+        var y = (buttonRect.top + (e.target.height / 2) + window.pageYOffset) - 19;
         var self = this;
         ContextualMenu.createMenu(MessageContextMenu, {
+            chevronOffset: 10,
             mxEvent: this.props.mxEvent,
             left: x,
             top: y,
@@ -357,6 +365,8 @@ module.exports = React.createClass({
         var SenderProfile = sdk.getComponent('messages.SenderProfile');
         var MemberAvatar = sdk.getComponent('avatars.MemberAvatar');
 
+        //console.log("EventTile showUrlPreview for %s is %s", this.props.mxEvent.getId(), this.props.showUrlPreview);
+
         var content = this.props.mxEvent.getContent();
         var msgtype = content.msgtype;
 
@@ -418,6 +428,7 @@ module.exports = React.createClass({
                 <div className="mx_EventTile_line">
                     <EventTileType ref="tile" mxEvent={this.props.mxEvent} highlights={this.props.highlights}
                           highlightLink={this.props.highlightLink}
+                          showUrlPreview={this.props.showUrlPreview}
                           onWidgetLoad={this.props.onWidgetLoad} />
                 </div>
             </div>

src/components/views/rooms/InviteMemberList.js

@@ -37,17 +37,14 @@ module.exports = React.createClass({
     },
 
     componentWillMount: function() {
-        this._room = MatrixClientPeg.get().getRoom(this.props.roomId);
+        var cli = MatrixClientPeg.get();
+        cli.on("RoomState.members", this.onRoomStateMember);
+
         this._emailEntity = null;
-        // Load the complete user list for inviting new users
-        // TODO: Keep this list bleeding-edge up-to-date. Practically speaking,
-        // it will do for now not being updated as random new users join different
-        // rooms as this list will be reloaded every room swap.
-        if (this._room) {
-            this._userList = MatrixClientPeg.get().getUsers().filter((u) => {
-                return !this._room.hasMembershipState(u.userId, "join");
-            });
-        }
+
+        // we have to update the list whenever membership changes
+        // particularly to avoid bug https://github.com/vector-im/vector-web/issues/1813
+        this._updateList();
     },
 
     componentDidMount: function() {
@@ -55,6 +52,28 @@ module.exports = React.createClass({
         this.onSearchQueryChanged('');
     },
 
+    componentWillUnmount: function() {
+        var cli = MatrixClientPeg.get();
+        if (cli) {
+            cli.removeListener("RoomState.members", this.onRoomStateMember);
+        }
+    },
+
+    _updateList: function() {
+        this._room = MatrixClientPeg.get().getRoom(this.props.roomId);
+        // Load the complete user list for inviting new users
+        if (this._room) {
+            this._userList = MatrixClientPeg.get().getUsers().filter((u) => {
+                return (!this._room.hasMembershipState(u.userId, "join") &&
+                        !this._room.hasMembershipState(u.userId, "invite"));
+            });
+        }
+    },
+
+    onRoomStateMember: function(ev, state, member) {
+        this._updateList();
+    },
+
     onInvite: function(ev) {
         this.props.onInvite(this._input);
     },

src/components/views/rooms/MemberDeviceInfo.js

@@ -36,32 +36,75 @@ module.exports = React.createClass({
         );
     },
 
+    onBlockClick: function() {
+        MatrixClientPeg.get().setDeviceBlocked(
+            this.props.userId, this.props.device.id, true
+        );
+    },
+
+    onUnblockClick: function() {
+        MatrixClientPeg.get().setDeviceBlocked(
+            this.props.userId, this.props.device.id, false
+        );
+    },
+
     render: function() {
-        var indicator = null, button = null;
-        if (this.props.device.verified) {
-            indicator = (
-                <div className="mx_MemberDeviceInfo_verified">&#x2714;</div>
+        var indicator = null, blockButton = null, verifyButton = null;
+        if (this.props.device.blocked) {
+            blockButton = (
+                <div className="mx_MemberDeviceInfo_textButton mx_MemberDeviceInfo_unblock"
+                  onClick={this.onUnblockClick}>
+                    Unblock
+                </div>
             );
-            button = (
+        } else {
+            blockButton = (
+                <div className="mx_MemberDeviceInfo_textButton mx_MemberDeviceInfo_block"
+                  onClick={this.onBlockClick}>
+                    Block
+                </div>
+            );
+        }
+
+        if (this.props.device.verified) {
+            verifyButton = (
                 <div className="mx_MemberDeviceInfo_textButton mx_MemberDeviceInfo_unverify"
                   onClick={this.onUnverifyClick}>
                     Unverify
                 </div>
             );
         } else {
-            button = (
+            verifyButton = (
                 <div className="mx_MemberDeviceInfo_textButton mx_MemberDeviceInfo_verify"
                   onClick={this.onVerifyClick}>
                     Verify
                 </div>
             );
         }
+
+        if (this.props.device.blocked) {
+            indicator = (
+                <div className="mx_MemberDeviceInfo_blocked">&#x2716;</div>
+            );
+        } else if (this.props.device.verified) {
+            indicator = (
+                    <div className="mx_MemberDeviceInfo_verified">&#x2714;</div>
+            );
+
+        } else {
+            indicator = (
+                <div className="mx_MemberDeviceInfo_unverified">?</div>
+            );
+        }
+
+        var deviceName = this.props.device.display_name || this.props.device.id;
+
         return (
             <div className="mx_MemberDeviceInfo">
-                <div className="mx_MemberDeviceInfo_deviceId">{this.props.device.id}</div>
-                <div className="mx_MemberDeviceInfo_deviceKey">{this.props.device.key}</div>
+                <div className="mx_MemberDeviceInfo_deviceId">{deviceName}</div>
                 {indicator}
-                {button}
+                {verifyButton}
+                {blockButton}
             </div>
         );
     },

src/components/views/rooms/MemberInfo.js

@@ -32,6 +32,7 @@ var Modal = require("../../../Modal");
 var sdk = require('../../../index');
 var UserSettingsStore = require('../../../UserSettingsStore');
 var createRoom = require('../../../createRoom');
+import {emojifyText} from '../../../HtmlUtils';
 
 module.exports = React.createClass({
     displayName: 'MemberInfo',
@@ -60,17 +61,21 @@ module.exports = React.createClass({
             updating: 0,
             devicesLoading: true,
             devices: null,
+            existingOneToOneRoomId: null,
         }
     },
 
-
     componentWillMount: function() {
         this._cancelDeviceList = null;
+
+        this.setState({
+            existingOneToOneRoomId: this.getExistingOneToOneRoomId()
+        });
     },
 
     componentDidMount: function() {
         this._updateStateForNewMember(this.props.member);
-        MatrixClientPeg.get().on("deviceVerified", this.onDeviceVerified);
+        MatrixClientPeg.get().on("deviceVerificationChanged", this.onDeviceVerificationChanged);
     },
 
     componentWillReceiveProps: function(newProps) {
@@ -82,14 +87,67 @@ module.exports = React.createClass({
     componentWillUnmount: function() {
         var client = MatrixClientPeg.get();
         if (client) {
-            client.removeListener("deviceVerified", this.onDeviceVerified);
+            client.removeListener("deviceVerificationChanged", this.onDeviceVerificationChanged);
         }
         if (this._cancelDeviceList) {
             this._cancelDeviceList();
         }
     },
 
-    onDeviceVerified: function(userId, device) {
+    getExistingOneToOneRoomId: function() {
+        const rooms = MatrixClientPeg.get().getRooms();
+        const userIds = [
+            this.props.member.userId,
+            MatrixClientPeg.get().credentials.userId
+        ];
+        let existingRoomId = null;
+        let invitedRoomId = null;
+
+        // roomId can be null here because of a hack in MatrixChat.onUserClick where we
+        // abuse this to view users rather than room members.
+        let currentMembers;
+        if (this.props.member.roomId) {
+            const currentRoom = MatrixClientPeg.get().getRoom(this.props.member.roomId);
+            currentMembers = currentRoom.getJoinedMembers();
+        }
+
+        // reuse the first private 1:1 we find
+        existingRoomId = null;
+
+        for (let i = 0; i < rooms.length; i++) {
+            // don't try to reuse public 1:1 rooms
+            const join_rules = rooms[i].currentState.getStateEvents("m.room.join_rules", '');
+            if (join_rules && join_rules.getContent().join_rule === 'public') continue;
+
+            const members = rooms[i].getJoinedMembers();
+            if (members.length === 2 &&
+                userIds.indexOf(members[0].userId) !== -1 &&
+                userIds.indexOf(members[1].userId) !== -1)
+            {
+                existingRoomId = rooms[i].roomId;
+                break;
+            }
+
+            const invited = rooms[i].getMembersWithMembership('invite');
+            if (members.length === 1 &&
+                invited.length === 1 &&
+                userIds.indexOf(members[0].userId) !== -1 &&
+                userIds.indexOf(invited[0].userId) !== -1 &&
+                invitedRoomId === null)
+            {
+                invitedRoomId = rooms[i].roomId;
+                // keep looking: we'll use this one if there's nothing better
+            }
+        }
+
+        if (existingRoomId === null) {
+            existingRoomId = invitedRoomId;
+        }
+
+        return existingRoomId;
+    },
+
+    onDeviceVerificationChanged: function(userId, device) {
         if (userId == this.props.member.userId) {
             // no need to re-download the whole thing; just update our copy of
             // the list.
@@ -348,61 +406,29 @@ module.exports = React.createClass({
 
     onChatClick: function() {
         var ErrorDialog = sdk.getComponent("dialogs.ErrorDialog");
+
+        // TODO: keep existingOneToOneRoomId updated if we see any room member changes anywhere
+
+        const useExistingOneToOneRoom = this.state.existingOneToOneRoomId && (this.state.existingOneToOneRoomId !== this.props.member.roomId);
+
         // check if there are any existing rooms with just us and them (1:1)
         // If so, just view that room. If not, create a private room with them.
-        var self = this;
-        var rooms = MatrixClientPeg.get().getRooms();
-        var userIds = [
-            this.props.member.userId,
-            MatrixClientPeg.get().credentials.userId
-        ];
-        var existingRoomId;
-
-        var currentRoom = MatrixClientPeg.get().getRoom(this.props.member.roomId);
-        var currentMembers = currentRoom.getJoinedMembers();
-        // if we're currently in a 1:1 with this user, start a new chat
-        if (currentMembers.length === 2 &&
-            userIds.indexOf(currentMembers[0].userId) !== -1 &&
-            userIds.indexOf(currentMembers[1].userId) !== -1)
-        {
-            existingRoomId = null;
-        }
-        // otherwise reuse the first private 1:1 we find
-        else {
-            existingRoomId = null;
-
-            for (var i = 0; i < rooms.length; i++) {
-                // don't try to reuse public 1:1 rooms
-                var join_rules = rooms[i].currentState.getStateEvents("m.room.join_rules", '');
-                if (join_rules && join_rules.getContent().join_rule === 'public') continue;
-
-                var members = rooms[i].getJoinedMembers();
-                if (members.length === 2 &&
-                    userIds.indexOf(members[0].userId) !== -1 &&
-                    userIds.indexOf(members[1].userId) !== -1)
-                {
-                    existingRoomId = rooms[i].roomId;
-                    break;
-                }
-            }
-        }
-
-        if (existingRoomId) {
+        if (useExistingOneToOneRoom) {
             dis.dispatch({
                 action: 'view_room',
-                room_id: existingRoomId
+                room_id: this.state.existingOneToOneRoomId,
             });
             this.props.onFinished();
         }
         else {
-            self.setState({ updating: self.state.updating + 1 });
+            this.setState({ updating: this.state.updating + 1 });
             createRoom({
                 createOpts: {
                     invite: [this.props.member.userId],
                 },
-            }).finally(function() {
-                self.props.onFinished();
-                self.setState({ updating: self.state.updating - 1 });
+            }).finally(() => {
+                this.props.onFinished();
+                this.setState({ updating: this.state.updating - 1 });
             }).done();
         }
     },
@@ -535,7 +561,9 @@ module.exports = React.createClass({
         return (
             <div>
                 <h3>Devices</h3>
-                {devComponents}
+                <div className="mx_MemberInfo_devices">
+                    {devComponents}
+                </div>
             </div>
         );
     },
@@ -545,7 +573,22 @@ module.exports = React.createClass({
         if (this.props.member.userId !== MatrixClientPeg.get().credentials.userId) {
             // FIXME: we're referring to a vector component from react-sdk
             var BottomLeftMenuTile = sdk.getComponent('rooms.BottomLeftMenuTile');
-            startChat = <BottomLeftMenuTile collapsed={ false } img="img/create-big.svg" label="Start chat" onClick={ this.onChatClick }/>
+
+            var label;
+            if (this.state.existingOneToOneRoomId) {
+                if (this.state.existingOneToOneRoomId == this.props.member.roomId) {
+                    label = "Start new direct chat";
+                }
+                else {
+                    label = "Go to direct chat";
+                }
+            }
+            else {
+                label = "Start direct chat";
+            }
+
+            startChat = <BottomLeftMenuTile collapsed={ false } img="img/create-big.svg"
+                                            label={ label } onClick={ this.onChatClick }/>
         }
 
         if (this.state.updating) {
@@ -594,6 +637,8 @@ module.exports = React.createClass({
                 </div>
         }
 
+        let memberNameHTML = emojifyText(this.props.member.name);
+
         var MemberAvatar = sdk.getComponent('avatars.MemberAvatar');
         var PowerSelector = sdk.getComponent('elements.PowerSelector');
         return (
@@ -603,7 +648,7 @@ module.exports = React.createClass({
                     <MemberAvatar onClick={this.onMemberAvatarClick} member={this.props.member} width={48} height={48} />
                 </div>
 
-                <h2>{ this.props.member.name }</h2>
+                <h2 dangerouslySetInnerHTML={memberNameHTML}></h2>
 
                 <div className="mx_MemberInfo_profile">
                     <div className="mx_MemberInfo_profileField">

src/components/views/rooms/MemberList.js

@@ -54,7 +54,7 @@ module.exports = React.createClass({
 
         this.memberDict = this.getMemberDict();
 
-        state.members = this.roomMembers(INITIAL_LOAD_NUM_MEMBERS);
+        state.members = this.roomMembers();
         return state;
     },
 
@@ -64,7 +64,10 @@ module.exports = React.createClass({
         cli.on("RoomMember.name", this.onRoomMemberName);
         cli.on("RoomState.events", this.onRoomStateEvent);
         cli.on("Room", this.onRoom); // invites
-        cli.on("User.presence", this.onUserPresence);
+        // We listen for changes to the lastPresenceTs which is essentially
+        // listening for all presence events (we display most of not all of
+        // the information contained in presence events).
+        cli.on("User.lastPresenceTs", this.onUserLastPresenceTs);
         // cli.on("Room.timeline", this.onRoomTimeline);
     },
 
@@ -75,24 +78,11 @@ module.exports = React.createClass({
             cli.removeListener("RoomMember.name", this.onRoomMemberName);
             cli.removeListener("RoomState.events", this.onRoomStateEvent);
             cli.removeListener("Room", this.onRoom);
-            cli.removeListener("User.presence", this.onUserPresence);
+            cli.removeListener("User.lastPresenceTs", this.onUserLastPresenceTs);
             // cli.removeListener("Room.timeline", this.onRoomTimeline);
         }
     },
 
-    componentDidMount: function() {
-        var self = this;
-
-        // Lazy-load in more than the first N members
-        setTimeout(function() {
-            if (!self.isMounted()) return;
-            // lazy load to prevent it blocking the first render
-            self.setState({
-                members: self.roomMembers()
-            });
-        }, 50);
-    },
-
 /*
     onRoomTimeline: function(ev, room, toStartOfTimeline, removed, data) {
         // ignore anything but real-time updates at the end of the room:
@@ -121,7 +111,7 @@ module.exports = React.createClass({
     },
 */
 
-    onUserPresence(event, user) {
+    onUserLastPresenceTs(event, user) {
         // Attach a SINGLE listener for global presence changes then locate the
         // member tile and re-render it. This is more efficient than every tile
         // evar attaching their own listener.
@@ -325,7 +315,7 @@ module.exports = React.createClass({
         return all_members;
     },
 
-    roomMembers: function(limit) {
+    roomMembers: function() {
         var all_members = this.memberDict || {};
         var all_user_ids = Object.keys(all_members);
         var ConferenceHandler = CallHandler.getConferenceHandler();
@@ -334,7 +324,7 @@ module.exports = React.createClass({
 
         var to_display = [];
         var count = 0;
-        for (var i = 0; i < all_user_ids.length && (limit === undefined || count < limit); ++i) {
+        for (var i = 0; i < all_user_ids.length; ++i) {
             var user_id = all_user_ids[i];
             var m = all_members[user_id];
 
@@ -425,27 +415,7 @@ module.exports = React.createClass({
 
             // For now, let's just order things by timestamp. It's really annoying
             // that a user disappears from sight just because they temporarily go offline
-    /*
-            var presenceMap = {
-                online: 3,
-                unavailable: 2,
-                offline: 1
-            };
-
-            var presenceOrdA = userA ? presenceMap[userA.presence] : 0;
-            var presenceOrdB = userB ? presenceMap[userB.presence] : 0;
-
-            if (presenceOrdA != presenceOrdB) {
-                return presenceOrdB - presenceOrdA;
-            }
-    */
-
-            var lastActiveTsA = userA && userA.lastActiveTs ? userA.lastActiveTs : 0;
-            var lastActiveTsB = userB && userB.lastActiveTs ? userB.lastActiveTs : 0;
-
-            // console.log("comparing ts: " + lastActiveTsA + " and " + lastActiveTsB);
-
-            return lastActiveTsB - lastActiveTsA;
+            return userB.getLastActiveTs() - userA.getLastActiveTs();
     },
 
     onSearchQueryChanged: function(input) {
@@ -462,9 +432,16 @@ module.exports = React.createClass({
 
         var memberList = self.state.members.filter(function(userId) {
             var m = self.memberDict[userId];
-            if (query && m.name.toLowerCase().indexOf(query) === -1) {
-                return false;
+
+            if (query) {
+                const matchesName = m.name.toLowerCase().indexOf(query) !== -1;
+                const matchesId = m.userId.toLowerCase().indexOf(query) !== -1;
+
+                if (!matchesName && !matchesId) {
+                    return false;
+                }
             }
+
             return m.membership == membership;
         }).map(function(userId) {
             var m = self.memberDict[userId];
@@ -515,7 +492,7 @@ module.exports = React.createClass({
             invitedSection = (
                 <div className="mx_MemberList_invited">
                     <h2>Invited</h2>
-                    <div autoshow={true} className="mx_MemberList_wrapper">
+                    <div className="mx_MemberList_wrapper">
                         {invitedMemberTiles}
                     </div>
                 </div>
@@ -544,7 +521,6 @@ module.exports = React.createClass({
             <div className="mx_MemberList">
                     {inviteMemberListSection}
                     <GeminiScrollbar autoshow={true}
-                                     relayoutOnUpdate={false}
                                      className="mx_MemberList_joined mx_MemberList_outerWrapper">
                         <TruncatedList className="mx_MemberList_wrapper" truncateAt={this.state.truncateAt}
                                 createOverflowElement={this._createOverflowTile}>

src/components/views/rooms/MessageComposer.js

@@ -20,54 +20,53 @@ var MatrixClientPeg = require('../../../MatrixClientPeg');
 var Modal = require('../../../Modal');
 var sdk = require('../../../index');
 var dis = require('../../../dispatcher');
+import Autocomplete from './Autocomplete';
 
 import UserSettingsStore from '../../../UserSettingsStore';
 
 
-module.exports = React.createClass({
-    displayName: 'MessageComposer',
+export default class MessageComposer extends React.Component {
+    constructor(props, context) {
+        super(props, context);
+        this.onCallClick = this.onCallClick.bind(this);
+        this.onHangupClick = this.onHangupClick.bind(this);
+        this.onUploadClick = this.onUploadClick.bind(this);
+        this.onUploadFileSelected = this.onUploadFileSelected.bind(this);
+        this.onVoiceCallClick = this.onVoiceCallClick.bind(this);
+        this.onInputContentChanged = this.onInputContentChanged.bind(this);
+        this.onUpArrow = this.onUpArrow.bind(this);
+        this.onDownArrow = this.onDownArrow.bind(this);
+        this._tryComplete = this._tryComplete.bind(this);
+        this._onAutocompleteConfirm = this._onAutocompleteConfirm.bind(this);
 
-    propTypes: {
-        tabComplete: React.PropTypes.any,
+        this.state = {
+            autocompleteQuery: '',
+            selection: null,
+        };
 
-        // a callback which is called when the height of the composer is
-        // changed due to a change in content.
-        onResize: React.PropTypes.func,
+    }
 
-        // js-sdk Room object
-        room: React.PropTypes.object.isRequired,
-
-        // string representing the current voip call state
-        callState: React.PropTypes.string,
-
-        // callback when a file to upload is chosen
-        uploadFile: React.PropTypes.func.isRequired,
-
-        // opacity for dynamic UI fading effects
-        opacity: React.PropTypes.number,
-    },
-
-    onUploadClick: function(ev) {
+    onUploadClick(ev) {
         if (MatrixClientPeg.get().isGuest()) {
-            var NeedToRegisterDialog = sdk.getComponent("dialogs.NeedToRegisterDialog");
+            let NeedToRegisterDialog = sdk.getComponent("dialogs.NeedToRegisterDialog");
             Modal.createDialog(NeedToRegisterDialog, {
                 title: "Please Register",
-                description: "Guest users can't upload files. Please register to upload."
+                description: "Guest users can't upload files. Please register to upload.",
             });
             return;
         }
 
         this.refs.uploadInput.click();
-    },
+    }
 
-    onUploadFileSelected: function(ev) {
-        var files = ev.target.files;
+    onUploadFileSelected(ev) {
+        let files = ev.target.files;
 
-        var QuestionDialog = sdk.getComponent("dialogs.QuestionDialog");
-        var TintableSvg = sdk.getComponent("elements.TintableSvg");
+        let QuestionDialog = sdk.getComponent("dialogs.QuestionDialog");
+        let TintableSvg = sdk.getComponent("elements.TintableSvg");
 
-        var fileList = [];
-        for(var i=0; i<files.length; i++) {
+        let fileList = [];
+        for (let i=0; i<files.length; i++) {
             fileList.push(<li>
                 <TintableSvg key={i} src="img/files.svg" width="16" height="16" /> {files[i].name}
             </li>);
@@ -94,11 +93,11 @@ module.exports = React.createClass({
                 }
 
                 this.refs.uploadInput.value = null;
-            }
+            },
         });
-    },
+    }
 
-    onHangupClick: function() {
+    onHangupClick() {
         var call = CallHandler.getCallForRoom(this.props.room.roomId);
         //var call = CallHandler.getAnyActiveCall();
         if (!call) {
@@ -108,27 +107,55 @@ module.exports = React.createClass({
             action: 'hangup',
             // hangup the call for this room, which may not be the room in props
             // (e.g. conferences which will hangup the 1:1 room instead)
-            room_id: call.roomId
+            room_id: call.roomId,
         });
-    },
+    }
 
-    onCallClick: function(ev) {
+    onCallClick(ev) {
         dis.dispatch({
             action: 'place_call',
             type: ev.shiftKey ? "screensharing" : "video",
-            room_id: this.props.room.roomId
+            room_id: this.props.room.roomId,
         });
-    },
+    }
 
-    onVoiceCallClick: function(ev) {
+    onVoiceCallClick(ev) {
         dis.dispatch({
             action: 'place_call',
             type: 'voice',
-            room_id: this.props.room.roomId
+            room_id: this.props.room.roomId,
         });
-    },
+    }
 
-    render: function() {
+    onInputContentChanged(content: string, selection: {start: number, end: number}) {
+        this.setState({
+            autocompleteQuery: content,
+            selection,
+        });
+    }
+
+    onUpArrow() {
+       return this.refs.autocomplete.onUpArrow();
+    }
+
+    onDownArrow() {
+        return this.refs.autocomplete.onDownArrow();
+    }
+
+    _tryComplete(): boolean {
+        if (this.refs.autocomplete) {
+            return this.refs.autocomplete.onConfirm();
+        }
+        return false;
+    }
+
+    _onAutocompleteConfirm(range, completion) {
+        if (this.messageComposerInput) {
+            this.messageComposerInput.onConfirmAutocompletion(range, completion);
+        }
+    }
+
+    render() {
         var me = this.props.room.getMember(MatrixClientPeg.get().credentials.userId);
         var uploadInputStyle = {display: 'none'};
         var MemberAvatar = sdk.getComponent('avatars.MemberAvatar');
@@ -154,12 +181,12 @@ module.exports = React.createClass({
         else {
             callButton =
                 <div key="controls_call" className="mx_MessageComposer_voicecall" onClick={this.onVoiceCallClick} title="Voice call">
-                    <TintableSvg src="img/voice.svg" width="16" height="26"/>
-                </div>
+                    <TintableSvg src="img/icon-call.svg" width="35" height="35"/>
+                </div>;
             videoCallButton =
                 <div key="controls_videocall" className="mx_MessageComposer_videocall" onClick={this.onCallClick} title="Video call">
-                    <TintableSvg src="img/call.svg" width="30" height="22"/>
-                </div>
+                    <TintableSvg src="img/icons-video.svg" width="35" height="35"/>
+                </div>;
         }
 
         var canSendMessages = this.props.room.currentState.maySendMessage(
@@ -172,7 +199,7 @@ module.exports = React.createClass({
             var uploadButton = (
                 <div key="controls_upload" className="mx_MessageComposer_upload"
                         onClick={this.onUploadClick} title="Upload file">
-                    <TintableSvg src="img/upload.svg" width="19" height="24"/>
+                    <TintableSvg src="img/icons-upload.svg" width="35" height="35"/>
                     <input ref="uploadInput" type="file"
                         style={uploadInputStyle}
                         multiple
@@ -181,8 +208,16 @@ module.exports = React.createClass({
             );
 
             controls.push(
-                <MessageComposerInput key="controls_input" tabComplete={this.props.tabComplete}
-                    onResize={this.props.onResize} room={this.props.room} />,
+                <MessageComposerInput
+                    ref={c => this.messageComposerInput = c}
+                    key="controls_input"
+                    onResize={this.props.onResize}
+                    room={this.props.room}
+                    tryComplete={this._tryComplete}
+                    onUpArrow={this.onUpArrow}
+                    onDownArrow={this.onDownArrow}
+                    tabComplete={this.props.tabComplete} // used for old messagecomposerinput/tabcomplete
+                    onContentChanged={this.onInputContentChanged} />,
                 uploadButton,
                 hangupButton,
                 callButton,
@@ -198,6 +233,13 @@ module.exports = React.createClass({
 
         return (
             <div className="mx_MessageComposer mx_fadable" style={{ opacity: this.props.opacity }}>
+                <div className="mx_MessageComposer_autocomplete_wrapper">
+                    <Autocomplete
+                        ref="autocomplete"
+                        onConfirm={this._onAutocompleteConfirm}
+                        query={this.state.autocompleteQuery}
+                        selection={this.state.selection} />
+                </div>
                 <div className="mx_MessageComposer_wrapper">
                     <div className="mx_MessageComposer_row">
                         {controls}
@@ -206,5 +248,24 @@ module.exports = React.createClass({
             </div>
         );
     }
-});
+};
 
+MessageComposer.propTypes = {
+    tabComplete: React.PropTypes.any,
+
+    // a callback which is called when the height of the composer is
+    // changed due to a change in content.
+    onResize: React.PropTypes.func,
+
+    // js-sdk Room object
+    room: React.PropTypes.object.isRequired,
+
+    // string representing the current voip call state
+    callState: React.PropTypes.string,
+
+    // callback when a file to upload is chosen
+    uploadFile: React.PropTypes.func.isRequired,
+
+    // opacity for dynamic UI fading effects
+    opacity: React.PropTypes.number
+};

src/components/views/rooms/MessageComposerInput.js

@@ -14,8 +14,8 @@ See the License for the specific language governing permissions and
 limitations under the License.
 */
 import React from 'react';
-
-var marked = require("marked");
+import type SyntheticKeyboardEvent from 'react/lib/SyntheticKeyboardEvent';
+import marked from 'marked';
 marked.setOptions({
     renderer: new marked.Renderer(),
     gfm: true,
@@ -24,7 +24,7 @@ marked.setOptions({
     pedantic: false,
     sanitize: true,
     smartLists: true,
-    smartypants: false
+    smartypants: false,
 });
 
 import {Editor, EditorState, RichUtils, CompositeDecorator,
@@ -33,14 +33,14 @@ import {Editor, EditorState, RichUtils, CompositeDecorator,
 
 import {stateToMarkdown} from 'draft-js-export-markdown';
 
-var MatrixClientPeg = require("../../../MatrixClientPeg");
-var SlashCommands = require("../../../SlashCommands");
-var Modal = require("../../../Modal");
-var MemberEntry = require("../../../TabCompleteEntries").MemberEntry;
-var sdk = require('../../../index');
+import MatrixClientPeg from '../../../MatrixClientPeg';
+import type {MatrixClient} from 'matrix-js-sdk/lib/matrix';
+import SlashCommands from '../../../SlashCommands';
+import Modal from '../../../Modal';
+import sdk from '../../../index';
 
-var dis = require("../../../dispatcher");
-var KeyCode = require("../../../KeyCode");
+import dis from '../../../dispatcher';
+import KeyCode from '../../../KeyCode';
 
 import * as RichText from '../../../RichText';
 
@@ -49,8 +49,8 @@ const TYPING_USER_TIMEOUT = 10000, TYPING_SERVER_TIMEOUT = 30000;
 const KEY_M = 77;
 
 // FIXME Breaks markdown with multiple paragraphs, since it only strips first and last <p>
-function mdownToHtml(mdown) {
-    var html = marked(mdown) || "";
+function mdownToHtml(mdown: string): string {
+    let html = marked(mdown) || "";
     html = html.trim();
     // strip start and end <p> tags else you get 'orrible spacing
     if (html.indexOf("<p>") === 0) {
@@ -66,23 +66,38 @@ function mdownToHtml(mdown) {
  * The textInput part of the MessageComposer
  */
 export default class MessageComposerInput extends React.Component {
+    static getKeyBinding(e: SyntheticKeyboardEvent): string {
+        // C-m => Toggles between rich text and markdown modes
+        if (e.keyCode === KEY_M && KeyBindingUtil.isCtrlKeyCommand(e)) {
+            return 'toggle-mode';
+        }
+
+        return getDefaultKeyBinding(e);
+    }
+
+    client: MatrixClient;
+
     constructor(props, context) {
         super(props, context);
         this.onAction = this.onAction.bind(this);
         this.onInputClick = this.onInputClick.bind(this);
         this.handleReturn = this.handleReturn.bind(this);
         this.handleKeyCommand = this.handleKeyCommand.bind(this);
-        this.onChange = this.onChange.bind(this);
+        this.setEditorState = this.setEditorState.bind(this);
+        this.onUpArrow = this.onUpArrow.bind(this);
+        this.onDownArrow = this.onDownArrow.bind(this);
+        this.onTab = this.onTab.bind(this);
+        this.onConfirmAutocompletion = this.onConfirmAutocompletion.bind(this);
 
         let isRichtextEnabled = window.localStorage.getItem('mx_editor_rte_enabled');
-        if(isRichtextEnabled == null) {
+        if (isRichtextEnabled == null) {
             isRichtextEnabled = 'true';
         }
         isRichtextEnabled = isRichtextEnabled === 'true';
 
         this.state = {
             isRichtextEnabled: isRichtextEnabled,
-            editorState: null
+            editorState: null,
         };
 
         // bit of a hack, but we need to do this here since createEditorState needs isRichtextEnabled
@@ -91,15 +106,6 @@ export default class MessageComposerInput extends React.Component {
         this.client = MatrixClientPeg.get();
     }
 
-    static getKeyBinding(e: SyntheticKeyboardEvent): string {
-        // C-m => Toggles between rich text and markdown modes
-        if(e.keyCode == KEY_M && KeyBindingUtil.isCtrlKeyCommand(e)) {
-            return 'toggle-mode';
-        }
-
-        return getDefaultKeyBinding(e);
-    }
-
     /**
      * "Does the right thing" to create an EditorState, based on:
      * - whether we've got rich text mode enabled
@@ -207,11 +213,9 @@ export default class MessageComposerInput extends React.Component {
                 let contentJSON = window.sessionStorage.getItem("mx_messagecomposer_input_" + this.roomId);
                 if (contentJSON) {
                     let content = convertFromRaw(JSON.parse(contentJSON));
-                    component.setState({
-                        editorState: component.createEditorState(component.state.isRichtextEnabled, content)
-                    });
+                    component.setEditorState(component.createEditorState(component.state.isRichtextEnabled, content));
                 }
-            }
+            },
         };
     }
 
@@ -233,7 +237,7 @@ export default class MessageComposerInput extends React.Component {
     }
 
     onAction(payload) {
-        var editor = this.refs.editor;
+        let editor = this.refs.editor;
 
         switch (payload.action) {
             case 'focus_composer':
@@ -251,7 +255,7 @@ export default class MessageComposerInput extends React.Component {
                         payload.displayname
                     );
                     this.setState({
-                        editorState: EditorState.push(this.state.editorState, contentState, 'insert-characters')
+                        editorState: EditorState.push(this.state.editorState, contentState, 'insert-characters'),
                     });
                     editor.focus();
                 }
@@ -344,28 +348,31 @@ export default class MessageComposerInput extends React.Component {
         this.refs.editor.focus();
     }
 
-    onChange(editorState: EditorState) {
+    setEditorState(editorState: EditorState) {
+        editorState = RichText.attachImmutableEntitiesToEmoji(editorState);
         this.setState({editorState});
 
-        if(editorState.getCurrentContent().hasText()) {
-            this.onTypingActivity()
+        if (editorState.getCurrentContent().hasText()) {
+            this.onTypingActivity();
         } else {
             this.onFinishedTyping();
         }
+
+        if (this.props.onContentChanged) {
+            this.props.onContentChanged(editorState.getCurrentContent().getPlainText(),
+                RichText.selectionStateToTextOffsets(editorState.getSelection(),
+                    editorState.getCurrentContent().getBlocksAsArray()));
+        }
     }
 
     enableRichtext(enabled: boolean) {
         if (enabled) {
             let html = mdownToHtml(this.state.editorState.getCurrentContent().getPlainText());
-            this.setState({
-                editorState: this.createEditorState(enabled, RichText.HTMLtoContentState(html))
-            });
+            this.setEditorState(this.createEditorState(enabled, RichText.HTMLtoContentState(html)));
         } else {
             let markdown = stateToMarkdown(this.state.editorState.getCurrentContent()),
                 contentState = ContentState.createFromText(markdown);
-            this.setState({
-                editorState: this.createEditorState(enabled, contentState)
-            });
+            this.setEditorState(this.createEditorState(enabled, contentState));
         }
 
         window.localStorage.setItem('mx_editor_rte_enabled', enabled);
@@ -376,7 +383,7 @@ export default class MessageComposerInput extends React.Component {
     }
 
     handleKeyCommand(command: string): boolean {
-        if(command === 'toggle-mode') {
+        if (command === 'toggle-mode') {
             this.enableRichtext(!this.state.isRichtextEnabled);
             return true;
         }
@@ -384,7 +391,7 @@ export default class MessageComposerInput extends React.Component {
         let newState: ?EditorState = null;
 
         // Draft handles rich text mode commands by default but we need to do it ourselves for Markdown.
-        if(!this.state.isRichtextEnabled) {
+        if (!this.state.isRichtextEnabled) {
             let contentState = this.state.editorState.getCurrentContent(),
                 selection = this.state.editorState.getSelection();
 
@@ -392,10 +399,10 @@ export default class MessageComposerInput extends React.Component {
                 bold: text => `**${text}**`,
                 italic: text => `*${text}*`,
                 underline: text => `_${text}_`, // there's actually no valid underline in Markdown, but *shrug*
-                code: text => `\`${text}\``
+                code: text => `\`${text}\``,
             }[command];
 
-            if(modifyFn) {
+            if (modifyFn) {
                 newState = EditorState.push(
                     this.state.editorState,
                     RichText.modifyText(contentState, selection, modifyFn),
@@ -404,23 +411,26 @@ export default class MessageComposerInput extends React.Component {
             }
         }
 
-        if(newState == null)
+        if (newState == null)
             newState = RichUtils.handleKeyCommand(this.state.editorState, command);
 
         if (newState != null) {
-            this.onChange(newState);
+            this.setEditorState(newState);
             return true;
         }
         return false;
     }
 
     handleReturn(ev) {
-        if(ev.shiftKey)
+        if (ev.shiftKey) {
             return false;
+        }
 
         const contentState = this.state.editorState.getCurrentContent();
-        if(!contentState.hasText())
+        if (!contentState.hasText()) {
             return true;
+        }
+            
 
         let contentText = contentState.getPlainText(), contentHTML;
 
@@ -489,10 +499,47 @@ export default class MessageComposerInput extends React.Component {
         return true;
     }
 
+    onUpArrow(e) {
+        if (this.props.onUpArrow && this.props.onUpArrow()) {
+            e.preventDefault();
+        }
+    }
+
+    onDownArrow(e) {
+        if (this.props.onDownArrow && this.props.onDownArrow()) {
+            e.preventDefault();
+        }
+    }
+
+    onTab(e) {
+        if (this.props.tryComplete) {
+            if (this.props.tryComplete()) {
+                e.preventDefault();
+            }
+        }
+    }
+
+    onConfirmAutocompletion(range, content: string) {
+        let contentState = Modifier.replaceText(
+            this.state.editorState.getCurrentContent(),
+            RichText.textOffsetsToSelectionState(range, this.state.editorState.getCurrentContent().getBlocksAsArray()),
+            content
+        );
+
+        let editorState = EditorState.push(this.state.editorState, contentState, 'insert-characters');
+
+        editorState = EditorState.forceSelection(editorState, contentState.getSelectionAfter());
+
+        this.setEditorState(editorState);
+
+        // for some reason, doing this right away does not update the editor :(
+        setTimeout(() => this.refs.editor.focus(), 50);
+    }
+
     render() {
         let className = "mx_MessageComposer_input";
 
-        if(this.state.isRichtextEnabled) {
+        if (this.state.isRichtextEnabled) {
             className += " mx_MessageComposer_input_rte"; // placeholder indicator for RTE mode
         }
 
@@ -502,11 +549,14 @@ export default class MessageComposerInput extends React.Component {
                 <Editor ref="editor"
                         placeholder="Type a message…"
                         editorState={this.state.editorState}
-                        onChange={this.onChange}
+                        onChange={this.setEditorState}
                         keyBindingFn={MessageComposerInput.getKeyBinding}
                         handleKeyCommand={this.handleKeyCommand}
                         handleReturn={this.handleReturn}
                         stripPastedStyles={!this.state.isRichtextEnabled}
+                        onTab={this.onTab}
+                        onUpArrow={this.onUpArrow}
+                        onDownArrow={this.onDownArrow}
                         spellCheck={true} />
             </div>
         );
@@ -521,5 +571,15 @@ MessageComposerInput.propTypes = {
     onResize: React.PropTypes.func,
 
     // js-sdk Room object
-    room: React.PropTypes.object.isRequired
+    room: React.PropTypes.object.isRequired,
+
+    // called with current plaintext content (as a string) whenever it changes
+    onContentChanged: React.PropTypes.func,
+
+    onUpArrow: React.PropTypes.func,
+
+    onDownArrow: React.PropTypes.func,
+
+    // attempts to confirm currently selected completion, returns whether actually confirmed
+    tryComplete: React.PropTypes.func,
 };

src/components/views/rooms/ReadReceiptMarker.js

@@ -163,13 +163,13 @@ module.exports = React.createClass({
         };
 
         return (
-            <Velociraptor>
+            <Velociraptor
+                    startStyles={this.state.startStyles}
+                    enterTransitionOpts={this.state.enterTransitionOpts} >
                 <MemberAvatar
                     member={this.props.member}
                     width={14} height={14} resizeMethod="crop"
                     style={style}
-                    startStyle={this.state.startStyles}
-                    enterTransitionOpts={this.state.enterTransitionOpts}
                     onClick={this.props.onClick}
                 />
             </Velociraptor>

src/components/views/rooms/RoomHeader.js

@@ -24,6 +24,7 @@ var Modal = require("../../../Modal");
 var linkify = require('linkifyjs');
 var linkifyElement = require('linkifyjs/element');
 var linkifyMatrix = require('../../../linkify-matrix');
+import {emojifyText} from '../../../HtmlUtils';
 
 linkifyMatrix(linkify);
 
@@ -211,13 +212,12 @@ module.exports = React.createClass({
                 roomName = this.props.room.name;
             }
 
+            let roomNameHTML = emojifyText(roomName);
+
             name =
                 <div className="mx_RoomHeader_name" onClick={this.props.onSettingsClick}>
-                    <div className={ "mx_RoomHeader_nametext " + (settingsHint ? "mx_RoomHeader_settingsHint" : "") } title={ roomName }>{ roomName }</div>
+                    <div className={ "mx_RoomHeader_nametext " + (settingsHint ? "mx_RoomHeader_settingsHint" : "") } title={ roomName } dangerouslySetInnerHTML={roomNameHTML}></div>
                     { searchStatus }
-                    <div className="mx_RoomHeader_settingsButton" title="Settings">
-                        <TintableSvg src="img/settings.svg" width="12" height="12"/>
-                    </div>
                 </div>
         }
 
@@ -263,10 +263,18 @@ module.exports = React.createClass({
             );
         }
 
+        var settings_button;
+        if (this.props.onSettingsClick) {
+            settings_button =
+                <div className="mx_RoomHeader_button" onClick={this.props.onSettingsClick} title="Settings">
+                    <TintableSvg src="img/icons-settings-room.svg" width="16" height="16"/>
+                </div>;
+        }
+
         var leave_button;
         if (this.props.onLeaveClick) {
             leave_button =
-                <div className="mx_RoomHeader_button mx_RoomHeader_leaveButton" onClick={this.props.onLeaveClick} title="Leave room">
+                <div className="mx_RoomHeader_button" onClick={this.props.onLeaveClick} title="Leave room">
                     <TintableSvg src="img/leave.svg" width="26" height="20"/>
                 </div>;
         }
@@ -274,7 +282,7 @@ module.exports = React.createClass({
         var forget_button;
         if (this.props.onForgetClick) {
             forget_button =
-                <div className="mx_RoomHeader_button mx_RoomHeader_leaveButton" onClick={this.props.onForgetClick} title="Forget room">
+                <div className="mx_RoomHeader_button" onClick={this.props.onForgetClick} title="Forget room">
                     <TintableSvg src="img/leave.svg" width="26" height="20"/>
                 </div>;
         }
@@ -288,10 +296,11 @@ module.exports = React.createClass({
         if (!this.props.editing) {
             right_row =
                 <div className="mx_RoomHeader_rightRow">
+                    { settings_button }
                     { forget_button }
                     { leave_button }
                     <div className="mx_RoomHeader_button" onClick={this.props.onSearchClick} title="Search">
-                        <TintableSvg src="img/search.svg" width="21" height="19"/>
+                        <TintableSvg src="img/icons-search.svg" width="35" height="35"/>
                     </div>
                     { rightPanel_buttons }
                 </div>;

src/components/views/rooms/RoomList.js

@@ -268,9 +268,11 @@ module.exports = React.createClass({
     },
 
     _repositionTooltip: function(e) {
-        if (this.tooltip && this.tooltip.parentElement) {
+        // We access the parent of the parent, as the tooltip is inside a container
+        // Needs refactoring into a better multipurpose tooltip
+        if (this.tooltip && this.tooltip.parentElement && this.tooltip.parentElement.parentElement) {
             var scroll = ReactDOM.findDOMNode(this);
-            this.tooltip.style.top = (70 + scroll.parentElement.offsetTop + this.tooltip.parentElement.offsetTop - this._getScrollNode().scrollTop) + "px";
+            this.tooltip.style.top = (3 + scroll.parentElement.offsetTop + this.tooltip.parentElement.parentElement.offsetTop - this._getScrollNode().scrollTop) + "px";
         }
     },
 
@@ -325,7 +327,6 @@ module.exports = React.createClass({
 
         return (
             <GeminiScrollbar className="mx_RoomList_scrollbar"
-                 relayoutOnUpdate={false}
                  autoshow={true} onScroll={ self._repositionTooltips } ref="gemscroll">
             <div className="mx_RoomList">
                 <RoomSubList list={ self.state.lists['im.vector.fake.invite'] }

src/components/views/rooms/RoomPreviewBar.js

@@ -33,16 +33,24 @@ module.exports = React.createClass({
 
         // If invited by 3rd party invite, the email address the invite was sent to
         invitedEmail: React.PropTypes.string,
-        canJoin: React.PropTypes.bool,
+
+        // A standard client/server API error object. If supplied, indicates that the
+        // caller was unable to fetch details about the room for the given reason.
+        error: React.PropTypes.object,
+
         canPreview: React.PropTypes.bool,
         spinner: React.PropTypes.bool,
         room: React.PropTypes.object,
+
+        // The alias that was used to access this room, if appropriate
+        // If given, this will be how the room is referred to (eg.
+        // in error messages).
+        roomAlias: React.PropTypes.object,
     },
 
     getDefaultProps: function() {
         return {
             onJoinClick: function() {},
-            canJoin: false,
             canPreview: true,
         };
     },
@@ -115,8 +123,24 @@ module.exports = React.createClass({
             );
 
         }
-        else if (this.props.canJoin) {
-            var name = this.props.room ? this.props.room.name : "";
+        else if (this.props.error) {
+            var name = this.props.roomAlias || "This room";
+            var error;
+            if (this.props.error.errcode == 'M_NOT_FOUND') {
+                error = name + " does not exist";
+            } else {
+                error = name + " is not accessible at this time";
+            }
+            joinBlock = (
+                <div>
+                    <div className="mx_RoomPreviewBar_join_text">
+                        { error }
+                    </div>
+                </div>
+            );
+        }
+        else {
+            var name = this.props.room ? this.props.room.name : (this.props.room_alias || "");
             name = name ? <b>{ name }</b> : "a room";
             joinBlock = (
                 <div>

src/components/views/rooms/RoomSettings.js

@@ -23,6 +23,14 @@ var Modal = require('../../../Modal');
 var ObjectUtils = require("../../../ObjectUtils");
 var dis = require("../../../dispatcher");
 var ScalarAuthClient = require("../../../ScalarAuthClient");
+var UserSettingsStore = require('../../../UserSettingsStore');
+
+// parse a string as an integer; if the input is undefined, or cannot be parsed
+// as an integer, return a default.
+function parseIntWithDefault(val, def) {
+    var res = parseInt(val);
+    return isNaN(res) ? def : res;
+}
 
 module.exports = React.createClass({
     displayName: 'RoomSettings',
@@ -59,9 +67,18 @@ module.exports = React.createClass({
             tags_changed: false,
             tags: tags,
             areNotifsMuted: areNotifsMuted,
+<<<<<<< HEAD
             isRoomPublished: this._originalIsRoomPublished, // loaded async in componentWillMount
             scalar_token: null,
             scalar_error: null,
+=======
+            // isRoomPublished is loaded async in componentWillMount so when the component
+            // inits, the saved value will always be undefined, however getInitialState()
+            // is also called from the saving code so we must return the correct value here
+            // if we have it (although this could race if the user saves before we load whether
+            // the room is published or not).
+            isRoomPublished: this._originalIsRoomPublished,
+>>>>>>> develop
         };
     },
 
@@ -209,11 +226,17 @@ module.exports = React.createClass({
                 }
             });
         }
-        console.log("Performing %s operations", promises.length);
 
         // color scheme
         promises.push(this.saveColor());
 
+        // url preview settings
+        promises.push(this.saveUrlPreviewSettings());
+
+        // encryption
+        promises.push(this.saveEncryption());
+
+        console.log("Performing %s operations: %s", promises.length, JSON.stringify(promises));
         return q.allSettled(promises);
     },
 
@@ -227,6 +250,24 @@ module.exports = React.createClass({
         return this.refs.color_settings.saveSettings();
     },
 
+    saveUrlPreviewSettings: function() {
+        if (!this.refs.url_preview_settings) { return q(); }
+        return this.refs.url_preview_settings.saveSettings();
+    },
+
+    saveEncryption: function () {
+        if (!this.refs.encrypt) { return q(); }
+
+        var encrypt = this.refs.encrypt.checked;
+        if (!encrypt) { return q(); }
+
+        var roomId = this.props.room.roomId;
+        return MatrixClientPeg.get().sendStateEvent(
+            roomId, "m.room.encryption",
+            { algorithm: "m.olm.v1.curve25519-aes-sha2" }
+        );
+    },
+
     _hasDiff: function(strA, strB) {
         // treat undefined as an empty string because other components may blindly
         // call setName("") when there has been no diff made to the name!
@@ -261,7 +302,7 @@ module.exports = React.createClass({
             power_levels_changed: true
         });
     },
-    
+
     _yankValueFromEvent: function(stateEventType, keyName, defaultValue) {
         // E.g.("m.room.name","name") would yank the "name" content key from "m.room.name"
         var event = this.props.room.currentState.getStateEvents(stateEventType, '');
@@ -296,7 +337,7 @@ module.exports = React.createClass({
             },
         });
     },
-    
+
     _onRoomAccessRadioToggle: function(ev) {
 
         //                         join_rule
@@ -400,68 +441,72 @@ module.exports = React.createClass({
         }, "");
     },
 
+    _renderEncryptionSection: function() {
+        if (!UserSettingsStore.isFeatureEnabled("e2e_encryption")) {
+            return null;
+        }
+
+        var cli = MatrixClientPeg.get();
+        var roomState = this.props.room.currentState;
+        var isEncrypted = cli.isRoomEncrypted(this.props.room.roomId);
+
+        var text = "Encryption is " + (isEncrypted ? "" : "not ") +
+            "enabled in this room.";
+
+        var button;
+        if (!isEncrypted &&
+                roomState.mayClientSendStateEvent("m.room.encryption", cli)) {
+            button = (
+                <label>
+                    <input type="checkbox" ref="encrypt" />
+                    Enable encryption (warning: cannot be disabled again!)
+                </label>
+            );
+        }
+
+        return (
+            <div className="mx_RoomSettings_toggles">
+                <h3>Encryption</h3>
+                <label>{text}</label>
+                {button}
+            </div>
+        );
+    },
+
     render: function() {
         // TODO: go through greying out things you don't have permission to change
         // (or turning them into informative stuff)
 
         var AliasSettings = sdk.getComponent("room_settings.AliasSettings");
         var ColorSettings = sdk.getComponent("room_settings.ColorSettings");
+        var UrlPreviewSettings = sdk.getComponent("room_settings.UrlPreviewSettings");
         var EditableText = sdk.getComponent('elements.EditableText');
         var PowerSelector = sdk.getComponent('elements.PowerSelector');
         var Loader = sdk.getComponent("elements.Spinner")
 
-        var power_levels = this.props.room.currentState.getStateEvents('m.room.power_levels', '');
-        var events_levels = (power_levels ? power_levels.getContent().events : {}) || {};
         var cli = MatrixClientPeg.get();
         var roomState = this.props.room.currentState;
         var user_id = cli.credentials.userId;
 
-        if (power_levels) {
-            power_levels = power_levels.getContent();
+        var power_level_event = roomState.getStateEvents('m.room.power_levels', '');
+        var power_levels = power_level_event ? power_level_event.getContent() : {};
+        var events_levels = power_levels.events || {};
+        var user_levels = power_levels.users || {};
 
-            var ban_level = parseInt(power_levels.ban);
-            var kick_level = parseInt(power_levels.kick);
-            var redact_level = parseInt(power_levels.redact);
-            var invite_level = parseInt(power_levels.invite || 0);
-            var send_level = parseInt(power_levels.events_default || 0);
-            var state_level = parseInt(power_levels.state_default || 50);
-            var default_user_level = parseInt(power_levels.users_default || 0);
+        var ban_level = parseIntWithDefault(power_levels.ban, 50);
+        var kick_level = parseIntWithDefault(power_levels.kick, 50);
+        var redact_level = parseIntWithDefault(power_levels.redact, 50);
+        var invite_level = parseIntWithDefault(power_levels.invite, 50);
+        var send_level = parseIntWithDefault(power_levels.events_default, 0);
+        var state_level = power_level_event ? parseIntWithDefault(power_levels.state_default, 50) : 0;
+        var default_user_level = parseIntWithDefault(power_levels.users_default, 0);
 
-            if (power_levels.ban == undefined) ban_level = 50;
-            if (power_levels.kick == undefined) kick_level = 50;
-            if (power_levels.redact == undefined) redact_level = 50;
-
-            var user_levels = power_levels.users || {};
-
-            var current_user_level = user_levels[user_id];
-            if (current_user_level == undefined) current_user_level = default_user_level;
-
-            var power_level_level = events_levels["m.room.power_levels"];
-            if (power_level_level == undefined) {
-                power_level_level = state_level;
-            }
-
-            var can_change_levels = current_user_level >= power_level_level;
-        } else {
-            var ban_level = 50;
-            var kick_level = 50;
-            var redact_level = 50;
-            var invite_level = 0;
-            var send_level = 0;
-            var state_level = 0;
-            var default_user_level = 0;
-
-            var user_levels = [];
-            var events_levels = [];
-
-            var current_user_level = 0;
-
-            var power_level_level = 0;
-
-            var can_change_levels = false;
+        var current_user_level = user_levels[user_id];
+        if (current_user_level === undefined) {
+            current_user_level = default_user_level;
         }
 
-        var state_default = (parseInt(power_levels ? power_levels.state_default : 0) || 0);
+        var can_change_levels = roomState.mayClientSendStateEvent("m.room.power_levels", cli);
 
         var canSetTag = !cli.isGuest();
 
@@ -530,7 +575,7 @@ module.exports = React.createClass({
 
         var tagsSection = null;
         if (canSetTag || self.state.tags) {
-            var tagsSection = 
+            var tagsSection =
                 <div className="mx_RoomSettings_tags">
                     Tagged as: { canSetTag ?
                         (tags.map(function(tag, i) {
@@ -666,10 +711,6 @@ module.exports = React.createClass({
                             Members only (since they joined)
                         </label>
                     </div>
-                    <label className="mx_RoomSettings_encrypt">
-                        <input type="checkbox" />
-                        Encrypt room
-                    </label>
                 </div>
 
 
@@ -690,6 +731,8 @@ module.exports = React.createClass({
                     canonicalAliasEvent={this.props.room.currentState.getStateEvents('m.room.canonical_alias', '')}
                     aliasEvents={this.props.room.currentState.getStateEvents('m.room.aliases')} />
 
+                <UrlPreviewSettings ref="url_preview_settings" room={this.props.room} />
+
                 <h3>Permissions</h3>
                 <div className="mx_RoomSettings_powerLevels mx_RoomSettings_settings">
                     <div className="mx_RoomSettings_powerLevel">
@@ -737,6 +780,8 @@ module.exports = React.createClass({
 
                 { bannedUsersSection }
 
+                { this._renderEncryptionSection() }
+
                 <h3>Advanced</h3>
                 <div className="mx_RoomSettings_settings">
                     This room's internal ID is <code>{ this.props.room.roomId }</code>

src/components/views/rooms/RoomTile.js

@@ -21,6 +21,8 @@ var classNames = require('classnames');
 var dis = require("../../../dispatcher");
 var MatrixClientPeg = require('../../../MatrixClientPeg');
 var sdk = require('../../../index');
+var ContextualMenu = require('../../structures/ContextualMenu');
+import {emojifyText} from '../../../HtmlUtils';
 
 module.exports = React.createClass({
     displayName: 'RoomTile',
@@ -42,13 +44,48 @@ module.exports = React.createClass({
     },
 
     getInitialState: function() {
-        return( { hover : false });
+        var areNotifsMuted = false;
+        var cli = MatrixClientPeg.get();
+        if (!cli.isGuest()) {
+            var roomPushRule = cli.getRoomPushRule("global", this.props.room.roomId);
+            if (roomPushRule) {
+                if (0 <= roomPushRule.actions.indexOf("dont_notify")) {
+                    areNotifsMuted = true;
+                }
+            }
+        }
+
+        return({
+            hover : false,
+            badgeHover : false,
+            menu: false,
+            areNotifsMuted: areNotifsMuted,
+        });
+    },
+
+    onAction: function(payload) {
+        switch (payload.action) {
+            case 'notification_change':
+                // Is the notification about this room?
+                if (payload.roomId === this.props.room.roomId) {
+                    this.setState( { areNotifsMuted : payload.isMuted });
+                }
+                break;
+        }
+    },
+
+    componentDidMount: function() {
+        this.dispatcherRef = dis.register(this.onAction);
+    },
+
+    componentWillUnmount: function() {
+        dis.unregister(this.dispatcherRef);
     },
 
     onClick: function() {
         dis.dispatch({
             action: 'view_room',
-            room_id: this.props.room.roomId
+            room_id: this.props.room.roomId,
         });
     },
 
@@ -60,6 +97,48 @@ module.exports = React.createClass({
         this.setState( { hover : false });
     },
 
+    badgeOnMouseEnter: function() {
+        // Only allow none guests to access the context menu
+        // and only change it if it needs to change
+        if (!MatrixClientPeg.get().isGuest() && !this.state.badgeHover) {
+            this.setState( { badgeHover : true } );
+        }
+    },
+
+    badgeOnMouseLeave: function() {
+        this.setState( { badgeHover : false } );
+    },
+
+    onBadgeClicked: function(e) {
+        // Only allow none guests to access the context menu
+        if (!MatrixClientPeg.get().isGuest()) {
+
+            // If the badge is clicked, then no longer show tooltip
+            if (this.props.collapsed) {
+                this.setState({ hover: false });
+            }
+
+            var Menu = sdk.getComponent('context_menus.NotificationStateContextMenu');
+            var elementRect = e.target.getBoundingClientRect();
+            // The window X and Y offsets are to adjust position when zoomed in to page
+            var x = elementRect.right + window.pageXOffset + 3;
+            var y = (elementRect.top + (elementRect.height / 2) + window.pageYOffset) - 53;
+            var self = this;
+            ContextualMenu.createMenu(Menu, {
+                menuWidth: 188,
+                menuHeight: 126,
+                chevronOffset: 45,
+                left: x,
+                top: y,
+                room: this.props.room,
+                onFinished: function() {
+                    self.setState({ menu: false });
+                }
+            });
+            this.setState({ menu: true });
+        }
+    },
+
     render: function() {
         var myUserId = MatrixClientPeg.get().credentials.userId;
         var me = this.props.room.currentState.members[myUserId];
@@ -72,42 +151,64 @@ module.exports = React.createClass({
             'mx_RoomTile_selected': this.props.selected,
             'mx_RoomTile_unread': this.props.unread,
             'mx_RoomTile_unreadNotify': notificationCount > 0,
+            'mx_RoomTile_read': !(this.props.highlight || notificationCount > 0),
             'mx_RoomTile_highlight': this.props.highlight,
             'mx_RoomTile_invited': (me && me.membership == 'invite'),
+            'mx_RoomTile_menu': this.state.menu,
+        });
+
+        var avatarClasses = classNames({
+            'mx_RoomTile_avatar': true,
+            'mx_RoomTile_mute': this.state.areNotifsMuted,
+        });
+
+        var badgeClasses = classNames({
+            'mx_RoomTile_badge': true,
+            'mx_RoomTile_badgeButton': this.state.badgeHover || this.state.menu,
+            'mx_RoomTile_badgeMute': this.state.areNotifsMuted,
         });
 
         // XXX: We should never display raw room IDs, but sometimes the
         // room name js sdk gives is undefined (cannot repro this -- k)
         var name = this.props.room.name || this.props.room.roomId;
-
         name = name.replace(":", ":\u200b"); // add a zero-width space to allow linewrapping after the colon
+
         var badge;
-        if (this.props.highlight || notificationCount > 0) {
-            badge = <div className="mx_RoomTile_badge">{ notificationCount ? notificationCount : '!' }</div>;
+        var badgeContent;
+
+        if (this.state.badgeHover || this.state.menu) {
+            badgeContent = "\u00B7\u00B7\u00B7";
+        } else if (this.props.highlight || notificationCount > 0) {
+            var limitedCount = (notificationCount > 99) ? '99+' : notificationCount;
+            badgeContent = notificationCount ? limitedCount : '!';
+        } else {
+            badgeContent = '\u200B';
         }
-        /*
-        if (this.props.highlight) {
-            badge = <div className="mx_RoomTile_badge">!</div>;
+
+        if (this.state.areNotifsMuted && !(this.state.badgeHover || this.state.menu)) {
+            badge = <div className={ badgeClasses } onClick={this.onBadgeClicked} onMouseEnter={this.badgeOnMouseEnter} onMouseLeave={this.badgeOnMouseLeave}><img className="mx_RoomTile_badgeIcon" src="img/icon-context-mute.svg" width="16" height="12" /></div>;
+        } else {
+            badge = <div className={ badgeClasses } onClick={this.onBadgeClicked} onMouseEnter={this.badgeOnMouseEnter} onMouseLeave={this.badgeOnMouseLeave}>{ badgeContent }</div>;
         }
-        else if (this.props.unread) {
-            badge = <div className="mx_RoomTile_badge">1</div>;
-        }
-        var nameCell;
-        if (badge) {
-            nameCell = <div className="mx_RoomTile_nameBadge"><div className="mx_RoomTile_name">{name}</div><div className="mx_RoomTile_badgeCell">{badge}</div></div>;
-        }
-        else {
-            nameCell = <div className="mx_RoomTile_name">{name}</div>;
-        }
-        */
 
         var label;
+        var tooltip;
         if (!this.props.collapsed) {
-            var className = 'mx_RoomTile_name' + (this.props.isInvite ? ' mx_RoomTile_invite' : '');
+            var nameClasses = classNames({
+                'mx_RoomTile_name': true,
+                'mx_RoomTile_invite': this.props.isInvite,
+                'mx_RoomTile_mute': this.state.areNotifsMuted,
+                'mx_RoomTile_badgeShown': this.props.highlight || notificationCount > 0 || this.state.badgeHover || this.state.menu || this.state.areNotifsMuted,
+            });
+
+            let nameHTML = emojifyText(name);
             if (this.props.selected) {
-                name = <span>{ name }</span>;
+                let nameSelected = <span dangerouslySetInnerHTML={nameHTML}></span>;
+
+                label = <div title={ name } onClick={this.onClick} className={ nameClasses }>{ nameSelected }</div>;
+            } else {
+                label = <div title={ name } onClick={this.onClick} className={ nameClasses } dangerouslySetInnerHTML={nameHTML}></div>;
             }
-            label = <div className={ className }>{ name }</div>;
         }
         else if (this.state.hover) {
             var RoomTooltip = sdk.getComponent("rooms.RoomTooltip");
@@ -129,13 +230,16 @@ module.exports = React.createClass({
         var connectDropTarget = this.props.connectDropTarget;
 
         return connectDragSource(connectDropTarget(
-            <div className={classes} onClick={this.onClick} onMouseEnter={this.onMouseEnter} onMouseLeave={this.onMouseLeave}>
-                <div className="mx_RoomTile_avatar">
-                    <RoomAvatar room={this.props.room} width={24} height={24} />
+            <div className={classes} onMouseEnter={this.onMouseEnter} onMouseLeave={this.onMouseLeave}>
+                <div className={avatarClasses}>
+                    <RoomAvatar onClick={this.onClick} room={this.props.room} width={24} height={24} />
+                </div>
+                <div className="mx_RoomTile_nameContainer">
+                    { label }
+                    { badge }
                 </div>
-                { label }
-                { badge }
                 { incomingCallBox }
+                { tooltip }
             </div>
         ));
     }

src/components/views/rooms/SearchableEntityList.js

@@ -179,7 +179,6 @@ var SearchableEntityList = React.createClass({
             }
             list = (
                 <GeminiScrollbar autoshow={true}
-                                 relayoutOnUpdate={false}
                                  className="mx_SearchableEntityList_listWrapper">
                     { list }
                 </GeminiScrollbar>

src/components/views/rooms/TabCompleteBar.js

@@ -24,17 +24,17 @@ module.exports = React.createClass({
     displayName: 'TabCompleteBar',
 
     propTypes: {
-        entries: React.PropTypes.array.isRequired
+        tabComplete: React.PropTypes.object.isRequired
     },
 
     render: function() {
         return (
             <div className="mx_TabCompleteBar">
-            {this.props.entries.map(function(entry, i) {
+            {this.props.tabComplete.peek(6).map((entry, i) => {
                 return (
                     <div key={entry.getKey() || i + ""}
-                         className={ "mx_TabCompleteBar_item " + (entry instanceof CommandEntry ? "mx_TabCompleteBar_command" : "") } 
-                         onClick={entry.onClick.bind(entry)} >
+                         className={ "mx_TabCompleteBar_item " + (entry instanceof CommandEntry ? "mx_TabCompleteBar_command" : "") }
+                         onClick={this.props.tabComplete.onEntryClick.bind(this.props.tabComplete, entry)} >
                         {entry.getImageJsx()}
                         <span className="mx_TabCompleteBar_text">
                             {entry.getText()}

src/components/views/settings/ChangeDisplayName.js

@@ -21,29 +21,10 @@ var MatrixClientPeg = require("../../../MatrixClientPeg");
 
 module.exports = React.createClass({
     displayName: 'ChangeDisplayName',
-    propTypes: {
-        onFinished: React.PropTypes.func
-    },
 
-    getDefaultProps: function() {
-        return {
-            onFinished: function() {},
-        };
-    },
-
-    getInitialState: function() {
-        return {
-            busy: false,
-            errorString: null
-        }
-    },
-
-    componentWillMount: function() {
+    _getDisplayName: function() {
         var cli = MatrixClientPeg.get();
-        this.setState({busy: true});
-        var self = this;
-        cli.getProfileInfo(cli.credentials.userId).done(function(result) {
-
+        return cli.getProfileInfo(cli.credentials.userId).then(function(result) {
             var displayname = result.displayname;
             if (!displayname) {
                 if (MatrixClientPeg.get().isGuest()) {
@@ -53,68 +34,26 @@ module.exports = React.createClass({
                     displayname = MatrixClientPeg.get().getUserIdLocalpart();
                 }
             }
-
-            self.setState({
-                displayName: displayname,
-                busy: false
-            });
+            return displayname;
         }, function(error) {
-            self.setState({
-                errorString: "Failed to fetch display name",
-                busy: false
-            });
+            throw new Error("Failed to fetch display name");
         });
     },
 
-    changeDisplayname: function(new_displayname) {
-        this.setState({
-            busy: true,
-            errorString: null,
-        })
-
-        var self = this;
-        MatrixClientPeg.get().setDisplayName(new_displayname).then(function() {
-            self.setState({
-                busy: false,
-                displayName: new_displayname
-            });
-        }, function(error) {
-            self.setState({
-                busy: false,
-                errorString: "Failed to set display name"
-            });
+    _changeDisplayName: function(new_displayname) {
+        var cli = MatrixClientPeg.get();
+        return cli.setDisplayName(new_displayname).catch(function(e) {
+            throw new Error("Failed to set display name");
         });
     },
 
-    edit: function() {
-        this.refs.displayname_edit.edit()
-    },
-
-    onValueChanged: function(new_value, shouldSubmit) {
-        if (shouldSubmit) {
-            this.changeDisplayname(new_value);
-        }
-    },
-
     render: function() {
-        if (this.state.busy) {
-            var Loader = sdk.getComponent("elements.Spinner");
-            return (
-                <Loader />
-            );
-        } else if (this.state.errorString) {
-            return (
-                <div className="error">{this.state.errorString}</div>
-            );
-        } else {
-            var EditableText = sdk.getComponent('elements.EditableText');
-            return (
-                <EditableText ref="displayname_edit" initialValue={this.state.displayName}
-                    className="mx_EditableText"
-                    placeholderClassName="mx_EditableText_placeholder"
-                    placeholder="No display name"
-                    onValueChanged={this.onValueChanged} />
-            );
-        }
+        var EditableTextContainer = sdk.getComponent('elements.EditableTextContainer');
+        return (
+            <EditableTextContainer
+                getInitialValue={this._getDisplayName}
+                placeholder="No display name"
+                onSubmit={this._changeDisplayName} />
+        );
     }
 });

src/components/views/settings/DevicesPanel.js

@@ -0,0 +1,138 @@
+/*
+Copyright 2016 OpenMarket Ltd
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+import React from 'react';
+import classNames from 'classnames';
+
+import sdk from '../../../index';
+import MatrixClientPeg from '../../../MatrixClientPeg';
+
+
+export default class DevicesPanel extends React.Component {
+    constructor(props, context) {
+        super(props, context);
+
+        this.state = {
+            devices: undefined,
+            deviceLoadError: undefined,
+        };
+
+        this._unmounted = false;
+
+        this._renderDevice = this._renderDevice.bind(this);
+    }
+
+    componentDidMount() {
+        this._loadDevices();
+    }
+
+    componentWillUnmount() {
+        this._unmounted = true;
+    }
+
+    _loadDevices() {
+        MatrixClientPeg.get().getDevices().done(
+            (resp) => {
+                if (this._unmounted) { return; }
+                this.setState({devices: resp.devices || []});
+            },
+            (error) => {
+                if (this._unmounted) { return; }
+                var errtxt;
+                if (err.httpStatus == 404) {
+                    // 404 probably means the HS doesn't yet support the API.
+                    errtxt = "Your home server does not support device management.";
+                } else {
+                    console.error("Error loading devices:", error);
+                    errtxt = "Unable to load device list.";
+                }
+                this.setState({deviceLoadError: errtxt});
+            }
+        );
+    }
+
+
+    /**
+     * compare two devices, sorting from most-recently-seen to least-recently-seen
+     * (and then, for stability, by device id)
+     */
+    _deviceCompare(a, b) {
+        // return < 0 if a comes before b, > 0 if a comes after b.
+        const lastSeenDelta =
+              (b.last_seen_ts || 0) - (a.last_seen_ts || 0);
+
+        if (lastSeenDelta !== 0) { return lastSeenDelta; }
+
+        const idA = a.device_id;
+        const idB = b.device_id;
+        return (idA < idB) ? -1 : (idA > idB) ? 1 : 0;
+    }
+
+    _onDeviceDeleted(device) {
+        if (this._unmounted) { return; }
+
+        // delete the removed device from our list.
+        const removed_id = device.device_id;
+        this.setState((state, props) => {
+            const newDevices = state.devices.filter(
+                d => { return d.device_id != removed_id }
+            );
+            return { devices: newDevices };
+        });
+    }
+
+    _renderDevice(device) {
+        var DevicesPanelEntry = sdk.getComponent('settings.DevicesPanelEntry');
+        return (
+            <DevicesPanelEntry key={device.device_id} device={device}
+               onDeleted={()=>{this._onDeviceDeleted(device)}} />
+        );
+    }
+
+    render() {
+        const Spinner = sdk.getComponent("elements.Spinner");
+
+        if (this.state.deviceLoadError !== undefined) {
+            const classes = classNames(this.props.className, "error");
+            return (
+                <div className={classes}>
+                    {this.state.deviceLoadError}
+                </div>
+            );
+        }
+
+        const devices = this.state.devices;
+        if (devices === undefined) {
+            // still loading
+            const classes = this.props.className;
+            return <Spinner className={classes}/>;
+        }
+
+        devices.sort(this._deviceCompare);
+
+        const classes = classNames(this.props.className, "mx_DevicesPanel");
+        return (
+            <div className={classes}>
+                <div className="mx_DevicesPanel_header">
+                    <div className="mx_DevicesPanel_deviceName">Name</div>
+                    <div className="mx_DevicesPanel_deviceLastSeen">Last seen</div>
+                    <div className="mx_DevicesPanel_deviceButtons"></div>
+                </div>
+                {devices.map(this._renderDevice)}
+            </div>
+        );
+    }
+}

src/components/views/settings/DevicesPanelEntry.js

@@ -0,0 +1,136 @@
+/*
+Copyright 2016 OpenMarket Ltd
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+import React from 'react';
+import classNames from 'classnames';
+import q from 'q';
+
+import sdk from '../../../index';
+import MatrixClientPeg from '../../../MatrixClientPeg';
+import DateUtils from '../../../DateUtils';
+
+export default class DevicesPanelEntry extends React.Component {
+    constructor(props, context) {
+        super(props, context);
+
+        this.state = {
+            deleting: false,
+            deleteError: undefined,
+        };
+
+        this._unmounted = false;
+
+        this._onDeleteClick = this._onDeleteClick.bind(this);
+        this._onDisplayNameChanged = this._onDisplayNameChanged.bind(this);
+    }
+
+    componentWillUnmount() {
+        this._unmounted = true;
+    }
+
+    _onDisplayNameChanged(value) {
+        const device = this.props.device;
+        return MatrixClientPeg.get().setDeviceDetails(device.device_id, {
+            display_name: value,
+        }).catch((e) => {
+            console.error("Error setting device display name", e);
+            throw new Error("Failed to set display name");
+        });
+    }
+
+    _onDeleteClick() {
+        const device = this.props.device;
+        this.setState({deleting: true});
+
+        MatrixClientPeg.get().deleteDevice(device.device_id).done(
+            () => {
+                this.props.onDeleted();
+                if (this._unmounted) { return; }
+                this.setState({ deleting: false });
+            },
+            (e) => {
+                console.error("Error deleting device", e);
+                if (this._unmounted) { return; }
+                this.setState({
+                    deleting: false,
+                    deleteError: "Failed to delete device",
+                });
+            }
+        );
+    }
+
+    render() {
+        const EditableTextContainer = sdk.getComponent('elements.EditableTextContainer');
+
+        const device = this.props.device;
+
+        if (this.state.deleting) {
+            const Spinner = sdk.getComponent("elements.Spinner");
+
+            return (
+                <div className="mx_DevicesPanel_device">
+                    <Spinner />
+                </div>
+            );
+        }
+
+        let lastSeen = "";
+        if (device.last_seen_ts) {
+            // todo: format the timestamp as "5 minutes ago" or whatever.
+            const lastSeenDate = new Date(device.last_seen_ts);
+            lastSeen = device.last_seen_ip + " @ " +
+                lastSeenDate.toLocaleString();
+        }
+
+        let deleteButton;
+        if (this.state.deleteError) {
+            deleteButton = <div className="error">{this.state.deleteError}</div>
+        } else {
+            deleteButton = (
+                <div className="textButton"
+                  onClick={this._onDeleteClick}>
+                    Delete
+                </div>
+            );
+        }
+
+        return (
+            <div className="mx_DevicesPanel_device">
+                <div className="mx_DevicesPanel_deviceName">
+                    <EditableTextContainer initialValue={device.display_name}
+                        onSubmit={this._onDisplayNameChanged}
+                        placeholder={device.device_id}
+                    />
+                </div>
+                <div className="mx_DevicesPanel_lastSeen">
+                    {lastSeen}
+                </div>
+                <div className="mx_DevicesPanel_deviceButtons">
+                    {deleteButton}
+                </div>
+            </div>
+        );
+    }
+}
+
+DevicesPanelEntry.propTypes = {
+    device: React.PropTypes.object.isRequired,
+    onDeleted: React.PropTypes.func,
+};
+
+DevicesPanelEntry.defaultProps = {
+    onDeleted: function() {},
+};

src/createRoom.js

@@ -64,11 +64,15 @@ function createRoom(opts) {
         }
     ];
 
-    var modal = Modal.createDialog(Loader);
+    var modal = Modal.createDialog(Loader, null, 'mx_Dialog_spinner');
 
     return client.createRoom(createOpts).finally(function() {
         modal.close();
     }).then(function(res) {
+        // NB createRoom doesn't block on the client seeing the echo that the
+        // room has been created, so we race here with the client knowing that
+        // the room exists, causing things like
+        // https://github.com/vector-im/vector-web/issues/1813
         dis.dispatch({
             action: 'view_room',
             room_id: res.room_id

src/encryption.js

@@ -1,38 +0,0 @@
-/*
-Copyright 2015, 2016 OpenMarket Ltd
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-    http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-*/
-
-function enableEncyption(client, roomId, members) {
-    members = members.slice(0);
-    members.push(client.credentials.userId);
-    // TODO: Check the keys actually match what keys the user has.
-    // TODO: Don't redownload keys each time.
-    return client.downloadKeys(members, "forceDownload").then(function(res) {
-        return client.setRoomEncryption(roomId, {
-            algorithm: "m.olm.v1.curve25519-aes-sha2",
-            members: members,
-        });
-    })
-}
-
-function disableEncryption(client, roomId) {
-    return client.disableRoomEncryption(roomId);
-}
-
-
-module.exports = {
-    enableEncryption: enableEncyption,
-    disableEncryption: disableEncryption,
-}

src/ratelimitedfunc.js

@@ -14,6 +14,14 @@ See the License for the specific language governing permissions and
 limitations under the License.
 */
 
+/**
+ * 'debounces' a function to only execute every n milliseconds.
+ * Useful when react-sdk gets many, many events but only wants
+ * to update the interface once for all of them.
+ *
+ * Note that the function must not take arguments, since the args
+ * could be different for each invocarion of the function.
+ */
 module.exports = function(f, minIntervalMs) {
     this.lastCall = 0;
     this.scheduledCall = undefined;