Merge remote-tracking branch 'origin/develop' into hs/bridge-info-pretty

src/components/views/auth/CaptchaForm.js

@@ -62,7 +62,7 @@ export default createReactClass({
             console.log("Loading recaptcha script...");
             window.mx_on_recaptcha_loaded = () => {this._onCaptchaLoaded();};
             let protocol = global.location.protocol;
-            if (protocol === "vector:") {
+            if (protocol !== "http:") {
                 protocol = "https:";
             }
             const scriptTag = document.createElement('script');

src/components/views/auth/CompleteSecurityBody.js

@@ -0,0 +1,27 @@
+/*
+Copyright 2020 The Matrix.org Foundation C.I.C.
+
+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.
+*/
+
+'use strict';
+
+import React from 'react';
+
+export default class CompleteSecurityBody extends React.PureComponent {
+    render() {
+        return <div className="mx_CompleteSecurityBody">
+            { this.props.children }
+        </div>;
+    }
+}

src/components/views/auth/InteractiveAuthEntryComponents.js

@@ -641,7 +641,7 @@ const AuthEntryComponents = [
     TermsAuthEntry,
 ];
 
-export function getEntryComponentForLoginType(loginType) {
+export default function getEntryComponentForLoginType(loginType) {
     for (const c of AuthEntryComponents) {
         if (c.LOGIN_TYPE == loginType) {
             return c;

src/components/views/context_menus/RoomTileContextMenu.js

@@ -306,7 +306,7 @@ export default createReactClass({
         return (
             <div>
                 <MenuItem className="mx_RoomTileContextMenu_tag_field" onClick={this._onClickSettings}>
-                    <img className="mx_RoomTileContextMenu_tag_icon" src={require("../../../../res/img/icons-settings-room.svg")} width="15" height="15" alt="" />
+                    <img className="mx_RoomTileContextMenu_tag_icon" src={require("../../../../res/img/feather-customised/settings.svg")} width="15" height="15" alt="" />
                     { _t('Settings') }
                 </MenuItem>
             </div>

src/components/views/context_menus/TopLeftMenu.js

@@ -27,7 +27,7 @@ import {MatrixClientPeg} from '../../../MatrixClientPeg';
 import {MenuItem} from "../../structures/ContextMenu";
 import * as sdk from "../../../index";
 
-export class TopLeftMenu extends React.Component {
+export default class TopLeftMenu extends React.Component {
     static propTypes = {
         displayName: PropTypes.string.isRequired,
         userId: PropTypes.string.isRequired,

src/components/views/dialogs/BaseDialog.js

@@ -65,6 +65,9 @@ export default createReactClass({
         // Title for the dialog.
         title: PropTypes.node.isRequired,
 
+        // Path to an icon to put in the header
+        headerImage: PropTypes.string,
+
         // children should be the content of the dialog
         children: PropTypes.node,
 
@@ -110,6 +113,13 @@ export default createReactClass({
             );
         }
 
+        let headerImage;
+        if (this.props.headerImage) {
+            headerImage = <img className="mx_Dialog_titleImage" src={this.props.headerImage}
+                alt=""
+            />;
+        }
+
         return (
             <MatrixClientContext.Provider value={this._matrixClient}>
                 <FocusLock
@@ -135,6 +145,7 @@ export default createReactClass({
                         'mx_Dialog_headerWithButton': !!this.props.headerButton,
                     })}>
                         <div className={classNames('mx_Dialog_title', this.props.titleClass)} id='mx_BaseDialog_title'>
+                            {headerImage}
                             { this.props.title }
                         </div>
                         { this.props.headerButton }

src/components/views/dialogs/CreateRoomDialog.js

@@ -1,5 +1,6 @@
 /*
 Copyright 2017 Michael Telatynski <7t3chguy@gmail.com>
+Copyright 2020 The Matrix.org Foundation C.I.C.
 
 Licensed under the Apache License, Version 2.0 (the "License");
 you may not use this file except in compliance with the License.
@@ -44,13 +45,13 @@ export default createReactClass({
     },
 
     _roomCreateOptions() {
-        const createOpts = {};
+        const opts = {};
+        const createOpts = opts.createOpts = {};
         createOpts.name = this.state.name;
         if (this.state.isPublic) {
             createOpts.visibility = "public";
             createOpts.preset = "public_chat";
-            // to prevent createRoom from enabling guest access
-            createOpts['initial_state'] = [];
+            opts.guestAccess = false;
             const {alias} = this.state;
             const localPart = alias.substr(1, alias.indexOf(":") - 1);
             createOpts['room_alias_name'] = localPart;
@@ -61,7 +62,7 @@ export default createReactClass({
         if (this.state.noFederate) {
             createOpts.creation_content = {'m.federate': false};
         }
-        return createOpts;
+        return opts;
     },
 
     componentDidMount() {

src/components/views/dialogs/InviteDialog.js

@@ -33,6 +33,7 @@ import Modal from "../../../Modal";
 import {humanizeTime} from "../../../utils/humanize";
 import createRoom from "../../../createRoom";
 import {inviteMultipleToRoom} from "../../../RoomInvite";
+import SettingsStore from '../../../settings/SettingsStore';
 
 export const KIND_DM = "dm";
 export const KIND_INVITE = "invite";
@@ -337,19 +338,31 @@ export default class InviteDialog extends React.PureComponent {
         const recents = [];
         for (const userId in rooms) {
             // Filter out user IDs that are already in the room / should be excluded
-            if (excludedTargetIds.includes(userId)) continue;
+            if (excludedTargetIds.includes(userId)) {
+                console.warn(`[Invite:Recents] Excluding ${userId} from recents`);
+                continue;
+            }
 
             const room = rooms[userId];
             const member = room.getMember(userId);
-            if (!member) continue; // just skip people who don't have memberships for some reason
+            if (!member) {
+                // just skip people who don't have memberships for some reason
+                console.warn(`[Invite:Recents] ${userId} is missing a member object in their own DM (${room.roomId})`);
+                continue;
+            }
 
             const lastEventTs = room.timeline && room.timeline.length
                 ? room.timeline[room.timeline.length - 1].getTs()
                 : 0;
-            if (!lastEventTs) continue; // something weird is going on with this room
+            if (!lastEventTs) {
+                // something weird is going on with this room
+                console.warn(`[Invite:Recents] ${userId} (${room.roomId}) has a weird last timestamp: ${lastEventTs}`);
+                continue;
+            }
 
             recents.push({userId, user: member, lastActive: lastEventTs});
         }
+        if (!recents) console.warn("[Invite:Recents] No recents to suggest!");
 
         // Sort the recents by last active to save us time later
         recents.sort((a, b) => b.lastActive - a.lastActive);
@@ -493,7 +506,7 @@ export default class InviteDialog extends React.PureComponent {
         return false;
     }
 
-    _startDm = () => {
+    _startDm = async () => {
         this.setState({busy: true});
         const targetIds = this.state.targets.map(t => t.userId);
 
@@ -510,14 +523,31 @@ export default class InviteDialog extends React.PureComponent {
             return;
         }
 
+        const createRoomOptions = {};
+
+        if (SettingsStore.isFeatureEnabled("feature_cross_signing")) {
+            // Check whether all users have uploaded device keys before.
+            // If so, enable encryption in the new room.
+            const client = MatrixClientPeg.get();
+            const usersToDevicesMap = await client.downloadKeys(targetIds);
+            const allHaveDeviceKeys = Object.values(usersToDevicesMap).every(devices => {
+                // `devices` is an object of the form { deviceId: deviceInfo, ... }.
+                return Object.keys(devices).length > 0;
+            });
+            if (allHaveDeviceKeys) {
+                createRoomOptions.encryption = true;
+            }
+        }
+
         // Check if it's a traditional DM and create the room if required.
         // TODO: [Canonical DMs] Remove this check and instead just create the multi-person DM
         let createRoomPromise = Promise.resolve();
         if (targetIds.length === 1) {
-            createRoomPromise = createRoom({dmUserId: targetIds[0]});
+            createRoomOptions.dmUserId = targetIds[0];
+            createRoomPromise = createRoom(createRoomOptions);
         } else {
             // Create a boring room and try to invite the targets manually.
-            createRoomPromise = createRoom().then(roomId => {
+            createRoomPromise = createRoom(createRoomOptions).then(roomId => {
                 return inviteMultipleToRoom(roomId, targetIds);
             }).then(result => {
                 if (this._shouldAbortAfterInviteError(result)) {
@@ -586,13 +616,36 @@ export default class InviteDialog extends React.PureComponent {
             clearTimeout(this._debounceTimer);
         }
         this._debounceTimer = setTimeout(async () => {
-            MatrixClientPeg.get().searchUserDirectory({term}).then(r => {
+            MatrixClientPeg.get().searchUserDirectory({term}).then(async r => {
                 if (term !== this.state.filterText) {
                     // Discard the results - we were probably too slow on the server-side to make
                     // these results useful. This is a race we want to avoid because we could overwrite
                     // more accurate results.
                     return;
                 }
+
+                if (!r.results) r.results = [];
+
+                // While we're here, try and autocomplete a search result for the mxid itself
+                // if there's no matches (and the input looks like a mxid).
+                if (term[0] === '@' && term.indexOf(':') > 1 && r.results.length === 0) {
+                    try {
+                        const profile = await MatrixClientPeg.get().getProfileInfo(term);
+                        if (profile) {
+                            // If we have a profile, we have enough information to assume that
+                            // the mxid can be invited - add it to the list
+                            r.results.push({
+                                user_id: term,
+                                display_name: profile['displayname'],
+                                avatar_url: profile['avatar_url'],
+                            });
+                        }
+                    } catch (e) {
+                        console.warn("Non-fatal error trying to make an invite for a user ID");
+                        console.warn(e);
+                    }
+                }
+
                 this.setState({
                     serverResultsMixin: r.results.map(u => ({
                         userId: u.user_id,
@@ -672,11 +725,16 @@ export default class InviteDialog extends React.PureComponent {
     };
 
     _toggleMember = (member: Member) => {
+        let filterText = this.state.filterText;
         const targets = this.state.targets.map(t => t); // cheap clone for mutation
         const idx = targets.indexOf(member);
-        if (idx >= 0) targets.splice(idx, 1);
-        else targets.push(member);
-        this.setState({targets});
+        if (idx >= 0) {
+            targets.splice(idx, 1);
+        } else {
+            targets.push(member);
+            filterText = ""; // clear the filter when the user accepts a suggestion
+        }
+        this.setState({targets, filterText});
     };
 
     _removeMember = (member: Member) => {
@@ -876,7 +934,7 @@ export default class InviteDialog extends React.PureComponent {
                 key={"input"}
                 rows={1}
                 onChange={this._updateFilter}
-                defaultValue={this.state.filterText}
+                value={this.state.filterText}
                 ref={this._editorRef}
                 onPaste={this._onPaste}
             />
@@ -944,7 +1002,7 @@ export default class InviteDialog extends React.PureComponent {
 
             title = _t("Direct Messages");
             helpText = _t(
-                "If you can't find someone, ask them for their username, or share your " +
+                "If you can't find someone, ask them for their username, share your " +
                 "username (%(userId)s) or <a>profile link</a>.",
                 {userId},
                 {a: (sub) => <a href={makeUserPermalink(userId)} rel="noopener" target="_blank">{sub}</a>},
@@ -970,7 +1028,7 @@ export default class InviteDialog extends React.PureComponent {
                 title={title}
             >
                 <div className='mx_InviteDialog_content'>
-                    <p>{helpText}</p>
+                    <p className='mx_InviteDialog_helpText'>{helpText}</p>
                     <div className='mx_InviteDialog_addressBar'>
                         {this._renderEditor()}
                         <div className='mx_InviteDialog_buttonAndSpinner'>
@@ -987,8 +1045,10 @@ export default class InviteDialog extends React.PureComponent {
                     </div>
                     {this._renderIdentityServerWarning()}
                     <div className='error'>{this.state.errorText}</div>
-                    {this._renderSection('recents')}
-                    {this._renderSection('suggestions')}
+                    <div className='mx_InviteDialog_userSections'>
+                        {this._renderSection('recents')}
+                        {this._renderSection('suggestions')}
+                    </div>
                 </div>
             </BaseDialog>
         );

src/components/views/dialogs/ReportEventDialog.js

@@ -20,6 +20,8 @@ import { _t } from '../../../languageHandler';
 import PropTypes from "prop-types";
 import {MatrixEvent} from "matrix-js-sdk";
 import {MatrixClientPeg} from "../../../MatrixClientPeg";
+import SdkConfig from '../../../SdkConfig';
+import Markdown from '../../../Markdown';
 
 /*
  * A dialog for reporting an event.
@@ -95,6 +97,15 @@ export default class ReportEventDialog extends PureComponent {
             );
         }
 
+        const adminMessageMD =
+            SdkConfig.get().reportEvent &&
+            SdkConfig.get().reportEvent.adminMessageMD;
+        let adminMessage;
+        if (adminMessageMD) {
+            const html = new Markdown(adminMessageMD).toHTML({ externalLinks: true });
+            adminMessage = <p dangerouslySetInnerHTML={{ __html: html }} />;
+        }
+
         return (
             <BaseDialog
                 className="mx_BugReportDialog"
@@ -110,7 +121,7 @@ export default class ReportEventDialog extends PureComponent {
                                 "administrator will not be able to read the message text or view any files or images.")
                         }
                     </p>
-
+                    {adminMessage}
                     <Field
                         id="mx_ReportEventDialog_reason"
                         className="mx_ReportEventDialog_reason"

src/components/views/dialogs/keybackup/RestoreKeyBackupDialog.js

@@ -16,6 +16,7 @@ limitations under the License.
 */
 
 import React from 'react';
+import PropTypes from 'prop-types';
 import * as sdk from '../../../../index';
 import {MatrixClientPeg} from '../../../../MatrixClientPeg';
 import { MatrixClient } from 'matrix-js-sdk';
@@ -32,6 +33,16 @@ const RESTORE_TYPE_SECRET_STORAGE = 2;
  * Dialog for restoring e2e keys from a backup and the user's recovery key
  */
 export default class RestoreKeyBackupDialog extends React.PureComponent {
+    static propTypes = {
+        // if false, will close the dialog as soon as the restore completes succesfully
+        // default: true
+        showSummary: PropTypes.bool,
+    };
+
+    defaultProps = {
+        showSummary: true,
+    };
+
     constructor(props) {
         super(props);
         this.state = {
@@ -96,6 +107,10 @@ export default class RestoreKeyBackupDialog extends React.PureComponent {
             const recoverInfo = await MatrixClientPeg.get().restoreKeyBackupWithPassword(
                 this.state.passPhrase, undefined, undefined, this.state.backupInfo,
             );
+            if (!this.props.showSummary) {
+                this.props.onFinished(true);
+                return;
+            }
             this.setState({
                 loading: false,
                 recoverInfo,
@@ -119,6 +134,10 @@ export default class RestoreKeyBackupDialog extends React.PureComponent {
             const recoverInfo = await MatrixClientPeg.get().restoreKeyBackupWithRecoveryKey(
                 this.state.recoveryKey, undefined, undefined, this.state.backupInfo,
             );
+            if (!this.props.showSummary) {
+                this.props.onFinished(true);
+                return;
+            }
             this.setState({
                 loading: false,
                 recoverInfo,
@@ -253,6 +272,7 @@ export default class RestoreKeyBackupDialog extends React.PureComponent {
             title = _t("Error");
             content = _t("No backup found!");
         } else if (this.state.recoverInfo) {
+            const DialogButtons = sdk.getComponent('views.elements.DialogButtons');
             title = _t("Backup Restored");
             let failedToDecrypt;
             if (this.state.recoverInfo.total > this.state.recoverInfo.imported) {
@@ -264,6 +284,11 @@ export default class RestoreKeyBackupDialog extends React.PureComponent {
             content = <div>
                 <p>{_t("Restored %(sessionCount)s session keys", {sessionCount: this.state.recoverInfo.imported})}</p>
                 {failedToDecrypt}
+                <DialogButtons primaryButton={_t('OK')}
+                    onPrimaryButtonClick={this._onDone}
+                    hasCancel={false}
+                    focus={true}
+                />
             </div>;
         } else if (backupHasPassphrase && !this.state.forceRecoveryKey) {
             const DialogButtons = sdk.getComponent('views.elements.DialogButtons');

src/components/views/elements/DialogButtons.js

@@ -34,12 +34,19 @@ export default createReactClass({
         // A node to insert into the cancel button instead of default "Cancel"
         cancelButton: PropTypes.node,
 
+        // If true, make the primary button a form submit button (input type="submit")
+        primaryIsSubmit: PropTypes.bool,
+
         // onClick handler for the primary button.
-        onPrimaryButtonClick: PropTypes.func.isRequired,
+        onPrimaryButtonClick: PropTypes.func,
 
         // should there be a cancel button? default: true
         hasCancel: PropTypes.bool,
 
+        // The class of the cancel button, only used if a cancel button is
+        // enabled
+        cancelButtonClass: PropTypes.node,
+
         // onClick handler for the cancel button.
         onCancel: PropTypes.func,
 
@@ -69,16 +76,26 @@ export default createReactClass({
             primaryButtonClassName += " " + this.props.primaryButtonClass;
         }
         let cancelButton;
+
         if (this.props.cancelButton || this.props.hasCancel) {
-            cancelButton = <button onClick={this._onCancelClick} disabled={this.props.disabled}>
+            cancelButton = <button
+                // important: the default type is 'submit' and this button comes before the
+                // primary in the DOM so will get form submissions unless we make it not a submit.
+                type="button"
+                onClick={this._onCancelClick}
+		className={this.props.cancelButtonClass}
+                disabled={this.props.disabled}
+            >
                 { this.props.cancelButton || _t("Cancel") }
             </button>;
         }
+
         return (
             <div className="mx_Dialog_buttons">
                 { cancelButton }
                 { this.props.children }
-                <button className={primaryButtonClassName}
+                <button type={this.props.primaryIsSubmit ? 'submit' : 'button'}
+                    className={primaryButtonClassName}
                     onClick={this.props.onPrimaryButtonClick}
                     autoFocus={this.props.focus}
                     disabled={this.props.disabled || this.props.primaryDisabled}

src/components/views/elements/crypto/VerificationQRCode.js

@@ -0,0 +1,56 @@
+/*
+Copyright 2020 The Matrix.org Foundation C.I.C.
+
+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 PropTypes from "prop-types";
+import {replaceableComponent} from "../../../../utils/replaceableComponent";
+import * as qs from "qs";
+import QRCode from "qrcode-react";
+
+@replaceableComponent("views.elements.crypto.VerificationQRCode")
+export default class VerificationQRCode extends React.PureComponent {
+    static propTypes = {
+        // Common for all kinds of QR codes
+        keys: PropTypes.array.isRequired, // array of [Key ID, Base64 Key] pairs
+        action: PropTypes.string.isRequired,
+        keyholderUserId: PropTypes.string.isRequired,
+
+        // User verification use case only
+        secret: PropTypes.string,
+        otherUserKey: PropTypes.string, // Base64 key being verified
+        requestEventId: PropTypes.string,
+    };
+
+    static defaultProps = {
+        action: "verify",
+    };
+
+    render() {
+        const query = {
+            request: this.props.requestEventId,
+            action: this.props.action,
+            other_user_key: this.props.otherUserKey,
+            secret: this.props.secret,
+        };
+        for (const key of this.props.keys) {
+            query[`key_${key[0]}`] = key[1];
+        }
+
+        const uri = `https://matrix.to/#/${this.props.keyholderUserId}?${qs.stringify(query)}`;
+
+        return <QRCode value={uri} size={256} logoWidth={48} logo={require("../../../../../res/img/matrix-m.svg")} />;
+    }
+}

src/components/views/emojipicker/EmojiPicker.js

@@ -20,7 +20,7 @@ import PropTypes from 'prop-types';
 import * as sdk from '../../../index';
 import { _t } from '../../../languageHandler';
 
-import * as recent from './recent';
+import * as recent from '../../../emojipicker/recent';
 import {DATA_BY_CATEGORY, getEmojiFromUnicode} from "../../../emoji";
 
 export const CATEGORY_HEADER_HEIGHT = 22;

src/components/views/emojipicker/recent.js

@@ -1,35 +0,0 @@
-/*
-Copyright 2019 Tulir Asokan <tulir@maunium.net>
-
-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 REACTION_COUNT = JSON.parse(window.localStorage.mx_reaction_count || '{}');
-let sorted = null;
-
-export function add(emoji) {
-    const [count] = REACTION_COUNT[emoji] || [0];
-    REACTION_COUNT[emoji] = [count + 1, Date.now()];
-    window.localStorage.mx_reaction_count = JSON.stringify(REACTION_COUNT);
-    sorted = null;
-}
-
-export function get(limit = 24) {
-    if (sorted === null) {
-        sorted = Object.entries(REACTION_COUNT)
-            .sort(([, [count1, date1]], [, [count2, date2]]) =>
-                count2 === count1 ? date2 - date1 : count2 - count1)
-            .map(([emoji, count]) => emoji);
-    }
-    return sorted.slice(0, limit);
-}

src/components/views/groups/GroupInviteTile.js

@@ -26,6 +26,7 @@ import classNames from 'classnames';
 import {MatrixClientPeg} from "../../../MatrixClientPeg";
 import {ContextMenu, ContextMenuButton, toRightOf} from "../../structures/ContextMenu";
 import MatrixClientContext from "../../../contexts/MatrixClientContext";
+import {RovingTabIndexWrapper} from "../../../accessibility/RovingTabIndex";
 
 // XXX this class copies a lot from RoomTile.js
 export default createReactClass({
@@ -127,7 +128,8 @@ export default createReactClass({
             'mx_RoomTile_badgeShown': this.state.badgeHover || isMenuDisplayed,
         });
 
-        const label = <div title={this.props.group.groupId} className={nameClasses} dir="auto">
+        // XXX: this is a workaround for Firefox giving this div a tabstop :( [tabIndex]
+        const label = <div title={this.props.group.groupId} className={nameClasses} tabIndex={-1} dir="auto">
             { groupName }
         </div>;
 
@@ -137,16 +139,6 @@ export default createReactClass({
         });
 
         const badgeContent = badgeEllipsis ? '\u00B7\u00B7\u00B7' : '!';
-        const badge = (
-            <ContextMenuButton
-                className={badgeClasses}
-                onClick={this.onContextMenuButtonClick}
-                label={_t("Options")}
-                isExpanded={isMenuDisplayed}
-            >
-                { badgeContent }
-            </ContextMenuButton>
-        );
 
         let tooltip;
         if (this.props.collapsed && this.state.hover) {
@@ -171,22 +163,37 @@ export default createReactClass({
         }
 
         return <React.Fragment>
-            <AccessibleButton
-                className={classes}
-                onClick={this.onClick}
-                onMouseEnter={this.onMouseEnter}
-                onMouseLeave={this.onMouseLeave}
-                onContextMenu={this.onContextMenu}
-            >
-                <div className="mx_RoomTile_avatar">
-                    { av }
-                </div>
-                <div className="mx_RoomTile_nameContainer">
-                    { label }
-                    { badge }
-                </div>
-                { tooltip }
-            </AccessibleButton>
+            <RovingTabIndexWrapper>
+                {({onFocus, isActive, ref}) =>
+                    <AccessibleButton
+                        onFocus={onFocus}
+                        tabIndex={isActive ? 0 : -1}
+                        inputRef={ref}
+                        className={classes}
+                        onClick={this.onClick}
+                        onMouseEnter={this.onMouseEnter}
+                        onMouseLeave={this.onMouseLeave}
+                        onContextMenu={this.onContextMenu}
+                    >
+                        <div className="mx_RoomTile_avatar">
+                            { av }
+                        </div>
+                        <div className="mx_RoomTile_nameContainer">
+                            { label }
+                            <ContextMenuButton
+                                className={badgeClasses}
+                                onClick={this.onContextMenuButtonClick}
+                                label={_t("Options")}
+                                isExpanded={isMenuDisplayed}
+                                tabIndex={isActive ? 0 : -1}
+                            >
+                                { badgeContent }
+                            </ContextMenuButton>
+                        </div>
+                        { tooltip }
+                    </AccessibleButton>
+                }
+            </RovingTabIndexWrapper>
 
             { contextMenu }
         </React.Fragment>;

src/components/views/messages/MKeyVerificationConclusion.js

@@ -93,7 +93,7 @@ export default class MKeyVerificationConclusion extends React.Component {
         }
 
         if (title) {
-            const subtitle = userLabelForEventRoom(request.otherUserId, mxEvent);
+            const subtitle = userLabelForEventRoom(request.otherUserId, mxEvent.getRoomId());
             const classes = classNames("mx_EventTile_bubble", "mx_KeyVerification", "mx_KeyVerification_icon", {
                 mx_KeyVerification_icon_verified: request.done,
             });

src/components/views/messages/MKeyVerificationRequest.js

@@ -85,7 +85,7 @@ export default class MKeyVerificationRequest extends React.Component {
         if (userId === myUserId) {
             return _t("You accepted");
         } else {
-            return _t("%(name)s accepted", {name: getNameForEventRoom(userId, this.props.mxEvent)});
+            return _t("%(name)s accepted", {name: getNameForEventRoom(userId, this.props.mxEvent.getRoomId())});
         }
     }
 
@@ -95,7 +95,7 @@ export default class MKeyVerificationRequest extends React.Component {
         if (userId === myUserId) {
             return _t("You cancelled");
         } else {
-            return _t("%(name)s cancelled", {name: getNameForEventRoom(userId, this.props.mxEvent)});
+            return _t("%(name)s cancelled", {name: getNameForEventRoom(userId, this.props.mxEvent.getRoomId())});
         }
     }
 
@@ -128,10 +128,11 @@ export default class MKeyVerificationRequest extends React.Component {
         }
 
         if (!request.initiatedByMe) {
+            const name = getNameForEventRoom(request.requestingUserId, mxEvent.getRoomId());
             title = (<div className="mx_KeyVerification_title">{
-                _t("%(name)s wants to verify", {name: getNameForEventRoom(request.requestingUserId, mxEvent)})}</div>);
+                _t("%(name)s wants to verify", {name})}</div>);
             subtitle = (<div className="mx_KeyVerification_subtitle">{
-                userLabelForEventRoom(request.requestingUserId, mxEvent)}</div>);
+                userLabelForEventRoom(request.requestingUserId, mxEvent.getRoomId())}</div>);
             if (request.requested && !request.observeOnly) {
                 stateNode = (<div className="mx_KeyVerification_buttons">
                     <FormButton kind="danger" onClick={this._onRejectClicked} label={_t("Decline")} />
@@ -142,7 +143,7 @@ export default class MKeyVerificationRequest extends React.Component {
             title = (<div className="mx_KeyVerification_title">{
                 _t("You sent a verification request")}</div>);
             subtitle = (<div className="mx_KeyVerification_subtitle">{
-                userLabelForEventRoom(request.receivingUserId, mxEvent)}</div>);
+                userLabelForEventRoom(request.receivingUserId, mxEvent.getRoomId())}</div>);
         }
 
         if (title) {

src/components/views/right_panel/UserInfo.js

@@ -82,7 +82,7 @@ const _getE2EStatus = (cli, userId, devices) => {
     return "warning";
 };
 
-function openDMForUser(matrixClient, userId) {
+async function openDMForUser(matrixClient, userId) {
     const dmRooms = DMRoomMap.shared().getDMRoomsForUserId(userId);
     const lastActiveRoom = dmRooms.reduce((lastActiveRoom, roomId) => {
         const room = matrixClient.getRoom(roomId);
@@ -100,9 +100,27 @@ function openDMForUser(matrixClient, userId) {
             action: 'view_room',
             room_id: lastActiveRoom.roomId,
         });
-    } else {
-        createRoom({dmUserId: userId});
+        return;
     }
+
+    const createRoomOptions = {
+        dmUserId: userId,
+    };
+
+    if (SettingsStore.isFeatureEnabled("feature_cross_signing")) {
+        // Check whether all users have uploaded device keys before.
+        // If so, enable encryption in the new room.
+        const usersToDevicesMap = await matrixClient.downloadKeys([userId]);
+        const allHaveDeviceKeys = Object.values(usersToDevicesMap).every(devices => {
+            // `devices` is an object of the form { deviceId: deviceInfo, ... }.
+            return Object.keys(devices).length > 0;
+        });
+        if (allHaveDeviceKeys) {
+            createRoomOptions.encryption = true;
+        }
+    }
+
+    createRoom(createRoomOptions);
 }
 
 function useIsEncrypted(cli, room) {
@@ -1219,10 +1237,9 @@ const UserInfo = ({user, groupId, roomId, onClose}) => {
 
     let closeButton;
     if (onClose) {
-        closeButton = <AccessibleButton
-            className="mx_UserInfo_cancel"
-            onClick={onClose}
-            title={_t('Close')} />;
+        closeButton = <AccessibleButton className="mx_UserInfo_cancel" onClick={onClose} title={_t('Close')}>
+            <div />
+        </AccessibleButton>;
     }
 
     const memberDetails = (
@@ -1308,15 +1325,18 @@ const UserInfo = ({user, groupId, roomId, onClose}) => {
         userTrust.isVerified();
     const isMe = user.userId === cli.getUserId();
     let verifyButton;
-    if (!userVerified && !isMe) {
+    if (isRoomEncrypted && !userVerified && !isMe) {
         verifyButton = <AccessibleButton className="mx_UserInfo_verify" onClick={() => verifyUser(user)}>
             {_t("Verify")}
         </AccessibleButton>;
     }
 
-    const devicesSection = <DevicesSection
-        loading={devices === undefined}
-        devices={devices} userId={user.userId} />;
+    let devicesSection;
+    if (isRoomEncrypted) {
+        devicesSection = <DevicesSection
+            loading={devices === undefined}
+            devices={devices} userId={user.userId} />;
+    }
 
     const securitySection = (
         <div className="mx_UserInfo_container">
@@ -1335,32 +1355,32 @@ const UserInfo = ({user, groupId, roomId, onClose}) => {
 
     return (
         <div className="mx_UserInfo" role="tabpanel">
-            { closeButton }
-            { avatarElement }
-
-            <div className="mx_UserInfo_container">
-                <div className="mx_UserInfo_profile">
-                    <div>
-                        <h2 aria-label={displayName}>
-                            { e2eIcon }
-                            { displayName }
-                        </h2>
-                    </div>
-                    <div>{ user.userId }</div>
-                    <div className="mx_UserInfo_profileStatus">
-                        {presenceLabel}
-                        {statusLabel}
-                    </div>
-                </div>
-            </div>
-
-            { memberDetails && <div className="mx_UserInfo_container mx_UserInfo_memberDetailsContainer">
-                <div className="mx_UserInfo_memberDetails">
-                    { memberDetails }
-                </div>
-            </div> }
-
             <AutoHideScrollbar className="mx_UserInfo_scrollContainer">
+                { closeButton }
+                { avatarElement }
+
+                <div className="mx_UserInfo_container">
+                    <div className="mx_UserInfo_profile">
+                        <div>
+                            <h2 aria-label={displayName}>
+                                { e2eIcon }
+                                { displayName }
+                            </h2>
+                        </div>
+                        <div>{ user.userId }</div>
+                        <div className="mx_UserInfo_profileStatus">
+                            {presenceLabel}
+                            {statusLabel}
+                        </div>
+                    </div>
+                </div>
+
+                { memberDetails && <div className="mx_UserInfo_container mx_UserInfo_memberDetailsContainer">
+                    <div className="mx_UserInfo_memberDetails">
+                        { memberDetails }
+                    </div>
+                </div> }
+
                 { securitySection }
                 <UserOptionsSection
                     devices={devices}

src/components/views/right_panel/VerificationPanel.js

@@ -17,6 +17,9 @@ limitations under the License.
 import React from 'react';
 import * as sdk from '../../../index';
 import {verificationMethods} from 'matrix-js-sdk/src/crypto';
+import VerificationQRCode from "../elements/crypto/VerificationQRCode";
+import {VerificationRequest} from "matrix-js-sdk/src/crypto/verification/request/VerificationRequest";
+import {MatrixClientPeg} from "../../../MatrixClientPeg";
 
 export default class VerificationPanel extends React.PureComponent {
     constructor(props) {
@@ -36,7 +39,8 @@ export default class VerificationPanel extends React.PureComponent {
     renderStatus() {
         const AccessibleButton = sdk.getComponent('elements.AccessibleButton');
         const Spinner = sdk.getComponent('elements.Spinner');
-        const {request} = this.props;
+        const {request: req} = this.props;
+        const request: VerificationRequest = req;
 
         if (request.requested) {
             return (<p>Waiting for {request.otherUserId} to accept ... <Spinner /></p>);
@@ -44,6 +48,24 @@ export default class VerificationPanel extends React.PureComponent {
             const verifyButton = <AccessibleButton kind="primary" onClick={this._startSAS}>
                 Verify by emoji
             </AccessibleButton>;
+
+            const crossSigningInfo = MatrixClientPeg.get().getStoredCrossSigningForUser(request.otherUserId);
+            const myKeyId = MatrixClientPeg.get().getCrossSigningId();
+            if (request.requestEvent && request.requestEvent.getId() && crossSigningInfo) {
+                const qrCodeKeys = [
+                    [MatrixClientPeg.get().getDeviceId(), MatrixClientPeg.get().getDeviceEd25519Key()],
+                    [myKeyId, myKeyId],
+                ];
+                const qrCode = <VerificationQRCode
+                    keyholderUserId={MatrixClientPeg.get().getUserId()}
+                    requestEventId={request.requestEvent.getId()}
+                    otherUserKey={crossSigningInfo.getId("master")}
+                    secret={request.encodedSharedSecret}
+                    keys={qrCodeKeys}
+                />;
+                return (<p>{request.otherUserId} is ready, start {verifyButton} or have them scan: {qrCode}</p>);
+            }
+
             return (<p>{request.otherUserId} is ready, start {verifyButton}</p>);
         } else if (request.started) {
             if (this.state.sasWaitingForOtherParty) {

src/components/views/rooms/BasicMessageComposer.js

@@ -209,6 +209,7 @@ export default class BasicMessageEditor extends React.Component {
             const range = getRangeForSelection(this._editorRef, model, selection);
             const selectedParts = range.parts.map(p => p.serialize());
             event.clipboardData.setData("application/x-riot-composer", JSON.stringify(selectedParts));
+            event.clipboardData.setData("text/plain", text); // so plain copy/paste works
             if (type === "cut") {
                 // Remove the text, updating the model as appropriate
                 this._modifiedFlag = true;

src/components/views/rooms/E2EIcon.js

@@ -1,5 +1,6 @@
 /*
 Copyright 2019 New Vector Ltd
+Copyright 2020 The Matrix.org Foundation C.I.C.
 
 Licensed under the Apache License, Version 2.0 (the "License");
 you may not use this file except in compliance with the License.
@@ -14,76 +15,102 @@ See the License for the specific language governing permissions and
 limitations under the License.
 */
 
+import React, {useState} from "react";
+import PropTypes from "prop-types";
 import classNames from 'classnames';
-import { _t } from '../../../languageHandler';
-import AccessibleButton from '../elements/AccessibleButton';
-import SettingsStore from '../../../settings/SettingsStore';
 
-export default function(props) {
-    const { isUser } = props;
-    const isNormal = props.status === "normal";
-    const isWarning = props.status === "warning";
-    const isVerified = props.status === "verified";
-    const e2eIconClasses = classNames({
+import {_t, _td} from '../../../languageHandler';
+import {useFeatureEnabled} from "../../../hooks/useSettings";
+import AccessibleButton from "../elements/AccessibleButton";
+import Tooltip from "../elements/Tooltip";
+
+export const E2E_STATE = {
+    VERIFIED: "verified",
+    WARNING: "warning",
+    UNKNOWN: "unknown",
+    NORMAL: "normal",
+};
+
+const crossSigningUserTitles = {
+    [E2E_STATE.WARNING]: _td("This user has not verified all of their devices."),
+    [E2E_STATE.NORMAL]: _td("You have not verified this user. This user has verified all of their devices."),
+    [E2E_STATE.VERIFIED]: _td("You have verified this user. This user has verified all of their devices."),
+};
+const crossSigningRoomTitles = {
+    [E2E_STATE.WARNING]: _td("Someone is using an unknown device"),
+    [E2E_STATE.NORMAL]: _td("This room is end-to-end encrypted"),
+    [E2E_STATE.VERIFIED]: _td("Everyone in this room is verified"),
+};
+
+const legacyUserTitles = {
+    [E2E_STATE.WARNING]: _td("Some devices for this user are not trusted"),
+    [E2E_STATE.VERIFIED]: _td("All devices for this user are trusted"),
+};
+const legacyRoomTitles = {
+    [E2E_STATE.WARNING]: _td("Some devices in this encrypted room are not trusted"),
+    [E2E_STATE.VERIFIED]: _td("All devices in this encrypted room are trusted"),
+};
+
+const E2EIcon = ({isUser, status, className, size, onClick}) => {
+    const [hover, setHover] = useState(false);
+
+    const classes = classNames({
         mx_E2EIcon: true,
-        mx_E2EIcon_warning: isWarning,
-        mx_E2EIcon_normal: isNormal,
-        mx_E2EIcon_verified: isVerified,
-    }, props.className);
+        mx_E2EIcon_warning: status === E2E_STATE.WARNING,
+        mx_E2EIcon_normal: status === E2E_STATE.NORMAL,
+        mx_E2EIcon_verified: status === E2E_STATE.VERIFIED,
+    }, className);
+
     let e2eTitle;
-
-    const crossSigning = SettingsStore.isFeatureEnabled("feature_cross_signing");
+    const crossSigning = useFeatureEnabled("feature_cross_signing");
     if (crossSigning && isUser) {
-        if (isWarning) {
-            e2eTitle = _t(
-                "This user has not verified all of their devices.",
-            );
-        } else if (isNormal) {
-            e2eTitle = _t(
-                "You have not verified this user. " +
-                "This user has verified all of their devices.",
-            );
-        } else if (isVerified) {
-            e2eTitle = _t(
-                "You have verified this user. " +
-                "This user has verified all of their devices.",
-            );
-        }
+        e2eTitle = crossSigningUserTitles[status];
     } else if (crossSigning && !isUser) {
-        if (isWarning) {
-            e2eTitle = _t(
-                "Some users in this encrypted room are not verified by you or " +
-                "they have not verified their own devices.",
-            );
-        } else if (isVerified) {
-            e2eTitle = _t(
-                "All users in this encrypted room are verified by you and " +
-                "they have verified their own devices.",
-            );
-        }
+        e2eTitle = crossSigningRoomTitles[status];
     } else if (!crossSigning && isUser) {
-        if (isWarning) {
-            e2eTitle = _t("Some devices for this user are not trusted");
-        } else if (isVerified) {
-            e2eTitle = _t("All devices for this user are trusted");
-        }
+        e2eTitle = legacyUserTitles[status];
     } else if (!crossSigning && !isUser) {
-        if (isWarning) {
-            e2eTitle = _t("Some devices in this encrypted room are not trusted");
-        } else if (isVerified) {
-            e2eTitle = _t("All devices in this encrypted room are trusted");
-        }
+        e2eTitle = legacyRoomTitles[status];
     }
 
-    let style = null;
-    if (props.size) {
-        style = {width: `${props.size}px`, height: `${props.size}px`};
+    let style;
+    if (size) {
+        style = {width: `${size}px`, height: `${size}px`};
     }
 
-    const icon = (<div className={e2eIconClasses} style={style} title={e2eTitle} />);
-    if (props.onClick) {
-        return (<AccessibleButton onClick={props.onClick}>{ icon }</AccessibleButton>);
-    } else {
-        return icon;
+    const onMouseOver = () => setHover(true);
+    const onMouseOut = () => setHover(false);
+
+    let tip;
+    if (hover) {
+        tip = <Tooltip label={e2eTitle ? _t(e2eTitle) : ""} />;
     }
-}
+
+    if (onClick) {
+        return (
+            <AccessibleButton
+                onClick={onClick}
+                onMouseOver={onMouseOver}
+                onMouseOut={onMouseOut}
+                className={classes}
+                style={style}
+            >
+                { tip }
+            </AccessibleButton>
+        );
+    }
+
+    return <div onMouseOver={onMouseOver} onMouseOut={onMouseOut} className={classes} style={style}>
+        { tip }
+    </div>;
+};
+
+E2EIcon.propTypes = {
+    isUser: PropTypes.bool,
+    status: PropTypes.oneOf(Object.values(E2E_STATE)),
+    className: PropTypes.string,
+    size: PropTypes.number,
+    onClick: PropTypes.func,
+};
+
+export default E2EIcon;

src/components/views/rooms/EventTile.js

@@ -33,6 +33,7 @@ import {MatrixClientPeg} from '../../../MatrixClientPeg';
 import {ALL_RULE_TYPES} from "../../../mjolnir/BanList";
 import * as ObjectUtils from "../../../ObjectUtils";
 import MatrixClientContext from "../../../contexts/MatrixClientContext";
+import {E2E_STATE} from "./E2EIcon";
 
 const eventTileTypes = {
     'm.room.message': 'messages.MessageEvent',
@@ -235,6 +236,7 @@ export default createReactClass({
         this._suppressReadReceiptAnimation = false;
         const client = this.context;
         client.on("deviceVerificationChanged", this.onDeviceVerificationChanged);
+        client.on("userTrustStatusChanged", this.onUserVerificationChanged);
         this.props.mxEvent.on("Event.decrypted", this._onDecrypted);
         if (this.props.showReactions) {
             this.props.mxEvent.on("Event.relationsCreated", this._onReactionsCreated);
@@ -260,6 +262,7 @@ export default createReactClass({
     componentWillUnmount: function() {
         const client = this.context;
         client.removeListener("deviceVerificationChanged", this.onDeviceVerificationChanged);
+        client.removeListener("userTrustStatusChanged", this.onUserVerificationChanged);
         this.props.mxEvent.removeListener("Event.decrypted", this._onDecrypted);
         if (this.props.showReactions) {
             this.props.mxEvent.removeListener("Event.relationsCreated", this._onReactionsCreated);
@@ -282,18 +285,56 @@ export default createReactClass({
         }
     },
 
+    onUserVerificationChanged: function(userId, _trustStatus) {
+        if (userId === this.props.mxEvent.getSender()) {
+            this._verifyEvent(this.props.mxEvent);
+        }
+    },
+
     _verifyEvent: async function(mxEvent) {
         if (!mxEvent.isEncrypted()) {
             return;
         }
 
+        // If we directly trust the device, short-circuit here
         const verified = await this.context.isEventSenderVerified(mxEvent);
+        if (verified) {
+            this.setState({
+                verified: E2E_STATE.VERIFIED,
+            }, () => {
+                // Decryption may have caused a change in size
+                this.props.onHeightChanged();
+            });
+            return;
+        }
+
+        // If cross-signing is off, the old behaviour is to scream at the user
+        // as if they've done something wrong, which they haven't
+        if (!SettingsStore.isFeatureEnabled("feature_cross_signing")) {
+            this.setState({
+                verified: E2E_STATE.WARNING,
+            }, this.props.onHeightChanged);
+            return;
+        }
+
+        if (!this.context.checkUserTrust(mxEvent.getSender()).isCrossSigningVerified()) {
+            this.setState({
+                verified: E2E_STATE.NORMAL,
+            }, this.props.onHeightChanged);
+            return;
+        }
+
+        const eventSenderTrust = await this.context.checkEventSenderTrust(mxEvent);
+        if (!eventSenderTrust) {
+            this.setState({
+                verified: E2E_STATE.UNKNOWN,
+            }, this.props.onHeightChanged); // Decryption may have cause a change in size
+            return;
+        }
+
         this.setState({
-            verified: verified,
-        }, () => {
-            // Decryption may have caused a change in size
-            this.props.onHeightChanged();
-        });
+            verified: eventSenderTrust.isVerified() ? E2E_STATE.VERIFIED : E2E_STATE.WARNING,
+        }, this.props.onHeightChanged); // Decryption may have caused a change in size
     },
 
     _propsEqual: function(objA, objB) {
@@ -473,8 +514,12 @@ export default createReactClass({
 
         // event is encrypted, display padlock corresponding to whether or not it is verified
         if (ev.isEncrypted()) {
-            if (this.state.verified) {
+            if (this.state.verified === E2E_STATE.NORMAL) {
+                return; // no icon if we've not even cross-signed the user
+            } else if (this.state.verified === E2E_STATE.VERIFIED) {
                 return; // no icon for verified
+            } else if (this.state.verified === E2E_STATE.UNKNOWN) {
+                return (<E2ePadlockUnknown />);
             } else {
                 return (<E2ePadlockUnverified />);
             }
@@ -527,6 +572,7 @@ export default createReactClass({
             console.error("EventTile attempted to get relations for an event without an ID");
             // Use event's special `toJSON` method to log key data.
             console.log(JSON.stringify(this.props.mxEvent, null, 4));
+            console.trace("Stacktrace for https://github.com/vector-im/riot-web/issues/11120");
         }
         return this.props.getRelationsForEvent(eventId, "m.annotation", "m.reaction");
     },
@@ -604,8 +650,9 @@ export default createReactClass({
             mx_EventTile_last: this.props.last,
             mx_EventTile_contextual: this.props.contextual,
             mx_EventTile_actionBarFocused: this.state.actionBarFocused,
-            mx_EventTile_verified: !isBubbleMessage && this.state.verified === true,
-            mx_EventTile_unverified: !isBubbleMessage && this.state.verified === false,
+            mx_EventTile_verified: !isBubbleMessage && this.state.verified === E2E_STATE.VERIFIED,
+            mx_EventTile_unverified: !isBubbleMessage && this.state.verified === E2E_STATE.WARNING,
+            mx_EventTile_unknown: !isBubbleMessage && this.state.verified === E2E_STATE.UNKNOWN,
             mx_EventTile_bad: isEncryptionFailure,
             mx_EventTile_emote: msgtype === 'm.emote',
             mx_EventTile_redacted: isRedacted,
@@ -901,6 +948,12 @@ function E2ePadlockUnencrypted(props) {
     );
 }
 
+function E2ePadlockUnknown(props) {
+    return (
+        <E2ePadlock title={_t("Encrypted by a deleted device")} icon="unknown" {...props} />
+    );
+}
+
 class E2ePadlock extends React.Component {
     static propTypes = {
         icon: PropTypes.string.isRequired,

src/components/views/rooms/InviteOnlyIcon.js

@@ -0,0 +1,51 @@
+/*
+Copyright 2020 The Matrix.org Foundation C.I.C.
+
+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 { _t } from '../../../languageHandler';
+import * as sdk from '../../../index';
+
+export default class InviteOnlyIcon extends React.Component {
+    constructor() {
+        super();
+
+        this.state = {
+            hover: false,
+        };
+    }
+
+    onHoverStart = () => {
+        this.setState({hover: true});
+    };
+
+    onHoverEnd = () => {
+        this.setState({hover: false});
+    };
+
+    render() {
+        const Tooltip = sdk.getComponent("elements.Tooltip");
+        let tooltip;
+        if (this.state.hover) {
+            tooltip = <Tooltip className="mx_InviteOnlyIcon_tooltip" label={_t("Invite only")} dir="auto" />;
+        }
+        return (<div className="mx_InviteOnlyIcon"
+          onMouseEnter={this.onHoverStart}
+          onMouseLeave={this.onHoverEnd}
+        >
+          { tooltip }
+        </div>);
+    }
+}

src/components/views/rooms/MessageComposer.js

@@ -26,6 +26,7 @@ import Stickerpicker from './Stickerpicker';
 import { makeRoomPermalink } from '../../../utils/permalinks/Permalinks';
 import ContentMessages from '../../../ContentMessages';
 import E2EIcon from './E2EIcon';
+import SettingsStore from "../../../settings/SettingsStore";
 
 function ComposerAvatar(props) {
     const MemberStatusMessageAvatar = sdk.getComponent('avatars.MemberStatusMessageAvatar');
@@ -168,7 +169,6 @@ export default class MessageComposer extends React.Component {
     constructor(props) {
         super(props);
         this.onInputStateChanged = this.onInputStateChanged.bind(this);
-        this.onEvent = this.onEvent.bind(this);
         this._onRoomStateEvents = this._onRoomStateEvents.bind(this);
         this._onRoomViewStoreUpdate = this._onRoomViewStoreUpdate.bind(this);
         this._onTombstoneClick = this._onTombstoneClick.bind(this);
@@ -182,11 +182,6 @@ export default class MessageComposer extends React.Component {
     }
 
     componentDidMount() {
-        // N.B. using 'event' rather than 'RoomEvents' otherwise the crypto handler
-        // for 'event' fires *after* 'RoomEvent', and our room won't have yet been
-        // marked as encrypted.
-        // XXX: fragile as all hell - fixme somehow, perhaps with a dedicated Room.encryption event or something.
-        MatrixClientPeg.get().on("event", this.onEvent);
         MatrixClientPeg.get().on("RoomState.events", this._onRoomStateEvents);
         this._roomStoreToken = RoomViewStore.addListener(this._onRoomViewStoreUpdate);
         this._waitForOwnMember();
@@ -210,7 +205,6 @@ export default class MessageComposer extends React.Component {
 
     componentWillUnmount() {
         if (MatrixClientPeg.get()) {
-            MatrixClientPeg.get().removeListener("event", this.onEvent);
             MatrixClientPeg.get().removeListener("RoomState.events", this._onRoomStateEvents);
         }
         if (this._roomStoreToken) {
@@ -218,13 +212,6 @@ export default class MessageComposer extends React.Component {
         }
     }
 
-    onEvent(event) {
-        if (event.getType() !== 'm.room.encryption') return;
-        if (event.getRoomId() !== this.props.room.roomId) return;
-        // TODO: put (encryption state??) in state
-        this.forceUpdate();
-    }
-
     _onRoomStateEvents(ev, state) {
         if (ev.getRoomId() !== this.props.room.roomId) return;
 
@@ -282,18 +269,33 @@ export default class MessageComposer extends React.Component {
     }
 
     renderPlaceholderText() {
-        const roomIsEncrypted = MatrixClientPeg.get().isRoomEncrypted(this.props.room.roomId);
-        if (this.state.isQuoting) {
-            if (roomIsEncrypted) {
-                return _t('Send an encrypted reply…');
+        if (SettingsStore.isFeatureEnabled("feature_cross_signing")) {
+            if (this.state.isQuoting) {
+                if (this.props.e2eStatus) {
+                    return _t('Send an encrypted reply…');
+                } else {
+                    return _t('Send a reply…');
+                }
             } else {
-                return _t('Send a reply (unencrypted)…');
+                if (this.props.e2eStatus) {
+                    return _t('Send an encrypted message…');
+                } else {
+                    return _t('Send a message…');
+                }
             }
         } else {
-            if (roomIsEncrypted) {
-                return _t('Send an encrypted message…');
+            if (this.state.isQuoting) {
+                if (this.props.e2eStatus) {
+                    return _t('Send an encrypted reply…');
+                } else {
+                    return _t('Send a reply (unencrypted)…');
+                }
             } else {
-                return _t('Send a message (unencrypted)…');
+                if (this.props.e2eStatus) {
+                    return _t('Send an encrypted message…');
+                } else {
+                    return _t('Send a message (unencrypted)…');
+                }
             }
         }
     }

src/components/views/rooms/RoomBreadcrumbs.js

@@ -363,7 +363,7 @@ export default class RoomBreadcrumbs extends React.Component {
             }
 
             let dmIndicator;
-            if (this._isDmRoom(r.room)) {
+            if (this._isDmRoom(r.room) && !SettingsStore.isFeatureEnabled("feature_cross_signing")) {
                 dmIndicator = <img
                     src={require("../../../../res/img/icon_person.svg")}
                     className="mx_RoomBreadcrumbs_dmIndicator"

src/components/views/rooms/RoomHeader.js

@@ -31,7 +31,9 @@ import ManageIntegsButton from '../elements/ManageIntegsButton';
 import {CancelButton} from './SimpleRoomHeader';
 import SettingsStore from "../../../settings/SettingsStore";
 import RoomHeaderButtons from '../right_panel/RoomHeaderButtons';
+import DMRoomMap from '../../../utils/DMRoomMap';
 import E2EIcon from './E2EIcon';
+import InviteOnlyIcon from './InviteOnlyIcon';
 
 export default createReactClass({
     displayName: 'RoomHeader',
@@ -160,13 +162,16 @@ export default createReactClass({
             <E2EIcon status={this.props.e2eStatus} /> :
             undefined;
 
+        const dmUserId = DMRoomMap.shared().getUserIdForRoomId(this.props.room.roomId);
         const joinRules = this.props.room && this.props.room.currentState.getStateEvents("m.room.join_rules", "");
         const joinRule = joinRules && joinRules.getContent().join_rule;
-        const joinRuleClass = classNames("mx_RoomHeader_PrivateIcon",
-                                         {"mx_RoomHeader_isPrivate": joinRule === "invite"});
-        const privateIcon = SettingsStore.isFeatureEnabled("feature_cross_signing") ?
-            <div className={joinRuleClass} /> :
-            undefined;
+        let privateIcon;
+        // Don't show an invite-only icon for DMs. Users know they're invite-only.
+        if (!dmUserId && SettingsStore.isFeatureEnabled("feature_cross_signing")) {
+            if (joinRule == "invite") {
+                privateIcon = <InviteOnlyIcon />;
+            }
+        }
 
         if (this.props.onCancelClick) {
             cancelButton = <CancelButton onClick={this.props.onCancelClick} />;
@@ -310,8 +315,7 @@ export default createReactClass({
         return (
             <div className="mx_RoomHeader light-panel">
                 <div className="mx_RoomHeader_wrapper">
-                    <div className="mx_RoomHeader_avatar">{ roomAvatar }</div>
-                    { e2eIcon }
+                    <div className="mx_RoomHeader_avatar">{ roomAvatar }{ e2eIcon }</div>
                     { privateIcon }
                     { name }
                     { topicElement }

src/components/views/rooms/RoomList.js

@@ -39,6 +39,7 @@ import * as sdk from "../../../index";
 import * as Receipt from "../../../utils/Receipt";
 import {Resizer} from '../../../resizer';
 import {Layout, Distributor} from '../../../resizer/distributors/roomsublist2';
+import {RovingTabIndexProvider} from "../../../accessibility/RovingTabIndex";
 
 const HIDE_CONFERENCE_CHANS = true;
 const STANDARD_TAGS_REGEX = /^(m\.(favourite|lowpriority|server_notice)|im\.vector\.fake\.(invite|recent|direct|archived))$/;
@@ -718,7 +719,7 @@ export default createReactClass({
             },
             {
                 list: this.state.lists['im.vector.fake.direct'],
-                label: _t('People'),
+                label: _t('Direct Messages'),
                 tagName: "im.vector.fake.direct",
                 order: "recent",
                 incomingCall: incomingCallIfTaggedAs('im.vector.fake.direct'),
@@ -776,19 +777,22 @@ export default createReactClass({
 
         const subListComponents = this._mapSubListProps(subLists);
 
-        const {resizeNotifier, collapsed, searchFilter, ConferenceHandler, ...props} = this.props; // eslint-disable-line
+        const {resizeNotifier, collapsed, searchFilter, ConferenceHandler, onKeyDown, ...props} = this.props; // eslint-disable-line
         return (
-            <div
-                {...props}
-                ref={this._collectResizeContainer}
-                className="mx_RoomList"
-                role="tree"
-                aria-label={_t("Rooms")}
-                onMouseMove={this.onMouseMove}
-                onMouseLeave={this.onMouseLeave}
-            >
-                { subListComponents }
-            </div>
+            <RovingTabIndexProvider handleHomeEnd={true} onKeyDown={onKeyDown}>
+                {({onKeyDownHandler}) => <div
+                    {...props}
+                    onKeyDown={onKeyDownHandler}
+                    ref={this._collectResizeContainer}
+                    className="mx_RoomList"
+                    role="tree"
+                    aria-label={_t("Rooms")}
+                    onMouseMove={this.onMouseMove}
+                    onMouseLeave={this.onMouseLeave}
+                >
+                    { subListComponents }
+                </div> }
+            </RovingTabIndexProvider>
         );
     },
 });

src/components/views/rooms/RoomPreviewBar.js

@@ -49,6 +49,7 @@ export default createReactClass({
     propTypes: {
         onJoinClick: PropTypes.func,
         onRejectClick: PropTypes.func,
+        onRejectAndIgnoreClick: PropTypes.func,
         onForgetClick: PropTypes.func,
         // if inviterName is specified, the preview bar will shown an invite to the room.
         // You should also specify onRejectClick if specifiying inviterName
@@ -282,6 +283,7 @@ export default createReactClass({
 
     render: function() {
         const Spinner = sdk.getComponent('elements.Spinner');
+        const AccessibleButton = sdk.getComponent('elements.AccessibleButton');
 
         let showSpinner = false;
         let darkStyle = false;
@@ -292,6 +294,7 @@ export default createReactClass({
         let secondaryActionHandler;
         let secondaryActionLabel;
         let footer;
+        const extraComponents = [];
 
         const messageCase = this._getMessageCase();
         switch (messageCase) {
@@ -469,6 +472,14 @@ export default createReactClass({
                 primaryActionHandler = this.props.onJoinClick;
                 secondaryActionLabel = _t("Reject");
                 secondaryActionHandler = this.props.onRejectClick;
+
+                if (this.props.onRejectAndIgnoreClick) {
+                    extraComponents.push(
+                        <AccessibleButton kind="secondary" onClick={this.props.onRejectAndIgnoreClick} key="ignore">
+                            { _t("Reject & Ignore user") }
+                        </AccessibleButton>,
+                    );
+                }
                 break;
             }
             case MessageCase.ViewingRoom: {
@@ -505,8 +516,6 @@ export default createReactClass({
             }
         }
 
-        const AccessibleButton = sdk.getComponent('elements.AccessibleButton');
-
         let subTitleElements;
         if (subTitle) {
             if (!Array.isArray(subTitle)) {
@@ -554,6 +563,7 @@ export default createReactClass({
                 </div>
                 <div className="mx_RoomPreviewBar_actions">
                     { secondaryButton }
+                    { extraComponents }
                     { primaryButton }
                 </div>
                 <div className="mx_RoomPreviewBar_footer">

src/components/views/rooms/RoomTile.js

@@ -32,6 +32,11 @@ import ActiveRoomObserver from '../../../ActiveRoomObserver';
 import RoomViewStore from '../../../stores/RoomViewStore';
 import SettingsStore from "../../../settings/SettingsStore";
 import {_t} from "../../../languageHandler";
+import {RovingTabIndexWrapper} from "../../../accessibility/RovingTabIndex";
+import E2EIcon from './E2EIcon';
+import InviteOnlyIcon from './InviteOnlyIcon';
+// eslint-disable-next-line camelcase
+import rate_limited_func from '../../../ratelimitedfunc';
 
 export default createReactClass({
     displayName: 'RoomTile',
@@ -69,6 +74,7 @@ export default createReactClass({
             notificationCount: this.props.room.getUnreadNotificationCount(),
             selected: this.props.room.roomId === RoomViewStore.getRoomId(),
             statusMessage: this._getStatusMessage(),
+            e2eStatus: null,
         });
     },
 
@@ -101,6 +107,83 @@ export default createReactClass({
         return statusUser._unstable_statusMessage;
     },
 
+    onRoomStateMember: function(ev, state, member) {
+        // we only care about leaving users
+        // because trust state will change if someone joins a megolm session anyway
+        if (member.membership !== "leave") {
+            return;
+        }
+        // ignore members in other rooms
+        if (member.roomId !== this.props.room.roomId) {
+            return;
+        }
+
+        this._updateE2eStatus();
+    },
+
+    onUserVerificationChanged: function(userId, _trustStatus) {
+        if (!this.props.room.getMember(userId)) {
+            // Not in this room
+            return;
+        }
+        this._updateE2eStatus();
+    },
+
+    onRoomTimeline: function(ev, room) {
+        if (!room) return;
+        if (room.roomId != this.props.room.roomId) return;
+        if (ev.getType() !== "m.room.encryption") return;
+        MatrixClientPeg.get().removeListener("Room.timeline", this.onRoomTimeline);
+        this.onFindingRoomToBeEncrypted();
+    },
+
+    onFindingRoomToBeEncrypted: function() {
+        const cli = MatrixClientPeg.get();
+        cli.on("RoomState.members", this.onRoomStateMember);
+        cli.on("userTrustStatusChanged", this.onUserVerificationChanged);
+
+        this._updateE2eStatus();
+    },
+
+    _updateE2eStatus: async function() {
+        const cli = MatrixClientPeg.get();
+        if (!cli.isRoomEncrypted(this.props.room.roomId)) {
+            return;
+        }
+        if (!SettingsStore.isFeatureEnabled("feature_cross_signing")) {
+            return;
+        }
+
+        // Duplication between here and _updateE2eStatus in RoomView
+        const e2eMembers = await this.props.room.getEncryptionTargetMembers();
+        const verified = [];
+        const unverified = [];
+        e2eMembers.map(({userId}) => userId)
+            .filter((userId) => userId !== cli.getUserId())
+            .forEach((userId) => {
+                (cli.checkUserTrust(userId).isCrossSigningVerified() ?
+                verified : unverified).push(userId);
+            });
+
+        /* Check all verified user devices. */
+        for (const userId of [...verified, cli.getUserId()]) {
+            const devices = await cli.getStoredDevicesForUser(userId);
+            const allDevicesVerified = devices.every(({deviceId}) => {
+                return cli.checkDeviceTrust(userId, deviceId).isVerified();
+            });
+            if (!allDevicesVerified) {
+                this.setState({
+                    e2eStatus: "warning",
+                });
+                return;
+            }
+        }
+
+        this.setState({
+            e2eStatus: unverified.length === 0 ? "verified" : "normal",
+        });
+    },
+
     onRoomName: function(room) {
         if (room !== this.props.room) return;
         this.setState({
@@ -150,10 +233,19 @@ export default createReactClass({
     },
 
     componentDidMount: function() {
+        /* We bind here rather than in the definition because otherwise we wind up with the
+           method only being callable once every 500ms across all instances, which would be wrong */
+        this._updateE2eStatus = rate_limited_func(this._updateE2eStatus, 500);
+
         const cli = MatrixClientPeg.get();
         cli.on("accountData", this.onAccountData);
         cli.on("Room.name", this.onRoomName);
         cli.on("RoomState.events", this.onJoinRule);
+        if (cli.isRoomEncrypted(this.props.room.roomId)) {
+            this.onFindingRoomToBeEncrypted();
+        } else {
+            cli.on("Room.timeline", this.onRoomTimeline);
+        }
         ActiveRoomObserver.addListener(this.props.room.roomId, this._onActiveRoomChange);
         this.dispatcherRef = dis.register(this.onAction);
 
@@ -171,6 +263,9 @@ export default createReactClass({
             MatrixClientPeg.get().removeListener("accountData", this.onAccountData);
             MatrixClientPeg.get().removeListener("Room.name", this.onRoomName);
             cli.removeListener("RoomState.events", this.onJoinRule);
+            cli.removeListener("RoomState.members", this.onRoomStateMember);
+            cli.removeListener("userTrustStatusChanged", this.onUserVerificationChanged);
+            cli.removeListener("Room.timeline", this.onRoomTimeline);
         }
         ActiveRoomObserver.removeListener(this.props.room.roomId, this._onActiveRoomChange);
         dis.unregister(this.dispatcherRef);
@@ -317,7 +412,6 @@ export default createReactClass({
             'mx_RoomTile_noBadges': !badges,
             'mx_RoomTile_transparent': this.props.transparent,
             'mx_RoomTile_hasSubtext': subtext && !this.props.collapsed,
-            'mx_RoomTile_isPrivate': this.state.joinRule == "invite" && !dmUserId,
         });
 
         const avatarClasses = classNames({
@@ -352,7 +446,8 @@ export default createReactClass({
             });
 
             subtextLabel = subtext ? <span className="mx_RoomTile_subtext">{ subtext }</span> : null;
-            label = <div title={name} className={nameClasses} dir="auto">{ name }</div>;
+            // XXX: this is a workaround for Firefox giving this div a tabstop :( [tabIndex]
+            label = <div title={name} className={nameClasses} tabIndex={-1} dir="auto">{ name }</div>;
         } else if (this.state.hover) {
             const Tooltip = sdk.getComponent("elements.Tooltip");
             tooltip = <Tooltip className="mx_RoomTile_tooltip" label={this.props.room.name} dir="auto" />;
@@ -383,7 +478,9 @@ export default createReactClass({
 
         let dmIndicator;
         let dmOnline;
-        if (dmUserId) {
+        /* Post-cross-signing we don't show DM indicators at all, instead relying on user
+           context to let them know when that is. */
+        if (dmUserId && !SettingsStore.isFeatureEnabled("feature_cross_signing")) {
             dmIndicator = <img
                 src={require("../../../../res/img/icon_person.svg")}
                 className="mx_RoomTile_dm"
@@ -428,40 +525,54 @@ export default createReactClass({
 
         let privateIcon = null;
         if (SettingsStore.isFeatureEnabled("feature_cross_signing")) {
-            privateIcon = <div className="mx_RoomTile_PrivateIcon" />;
+            if (this.state.joinRule == "invite" && !dmUserId) {
+                privateIcon = <InviteOnlyIcon />;
+            }
+        }
+
+        let e2eIcon = null;
+        if (this.state.e2eStatus) {
+            e2eIcon = <E2EIcon status={this.state.e2eStatus} className="mx_RoomTile_e2eIcon" />;
         }
 
         return <React.Fragment>
-            <AccessibleButton
-                tabIndex="0"
-                className={classes}
-                onClick={this.onClick}
-                onMouseEnter={this.onMouseEnter}
-                onMouseLeave={this.onMouseLeave}
-                onContextMenu={this.onContextMenu}
-                aria-label={ariaLabel}
-                aria-selected={this.state.selected}
-                role="treeitem"
-            >
-                <div className={avatarClasses}>
-                    <div className="mx_RoomTile_avatar_container">
-                        <RoomAvatar room={this.props.room} width={24} height={24} />
-                        { dmIndicator }
-                    </div>
-                </div>
-                { privateIcon }
-                <div className="mx_RoomTile_nameContainer">
-                    <div className="mx_RoomTile_labelContainer">
-                        { label }
-                        { subtextLabel }
-                    </div>
-                    { dmOnline }
-                    { contextMenuButton }
-                    { badge }
-                </div>
-                { /* { incomingCallBox } */ }
-                { tooltip }
-            </AccessibleButton>
+            <RovingTabIndexWrapper>
+                {({onFocus, isActive, ref}) =>
+                    <AccessibleButton
+                        onFocus={onFocus}
+                        tabIndex={isActive ? 0 : -1}
+                        inputRef={ref}
+                        className={classes}
+                        onClick={this.onClick}
+                        onMouseEnter={this.onMouseEnter}
+                        onMouseLeave={this.onMouseLeave}
+                        onContextMenu={this.onContextMenu}
+                        aria-label={ariaLabel}
+                        aria-selected={this.state.selected}
+                        role="treeitem"
+                    >
+                        <div className={avatarClasses}>
+                            <div className="mx_RoomTile_avatar_container">
+                                <RoomAvatar room={this.props.room} width={24} height={24} />
+                                { dmIndicator }
+                                { e2eIcon }
+                            </div>
+                        </div>
+                        { privateIcon }
+                        <div className="mx_RoomTile_nameContainer">
+                            <div className="mx_RoomTile_labelContainer">
+                                { label }
+                                { subtextLabel }
+                            </div>
+                            { dmOnline }
+                            { contextMenuButton }
+                            { badge }
+                        </div>
+                        { /* { incomingCallBox } */ }
+                        { tooltip }
+                    </AccessibleButton>
+                }
+            </RovingTabIndexWrapper>
 
             { contextMenu }
         </React.Fragment>;

src/components/views/rooms/SendMessageComposer.js

@@ -24,6 +24,8 @@ import {
     containsEmote,
     stripEmoteCommand,
     unescapeMessage,
+    startsWith,
+    stripPrefix,
 } from '../../../editor/serialize';
 import {CommandPartCreator} from '../../../editor/parts';
 import BasicMessageComposer from "./BasicMessageComposer";
@@ -33,7 +35,7 @@ import ReplyThread from "../elements/ReplyThread";
 import {parseEvent} from '../../../editor/deserialize';
 import {findEditableEvent} from '../../../utils/EventUtils';
 import SendHistoryManager from "../../../SendHistoryManager";
-import {processCommandInput} from '../../../SlashCommands';
+import {getCommand} from '../../../SlashCommands';
 import * as sdk from '../../../index';
 import Modal from '../../../Modal';
 import {_t, _td} from '../../../languageHandler';
@@ -56,11 +58,15 @@ function addReplyToMessageContent(content, repliedToEvent, permalinkCreator) {
     }
 }
 
-function createMessageContent(model, permalinkCreator) {
+// exported for tests
+export function createMessageContent(model, permalinkCreator) {
     const isEmote = containsEmote(model);
     if (isEmote) {
         model = stripEmoteCommand(model);
     }
+    if (startsWith(model, "//")) {
+        model = stripPrefix(model, "/");
+    }
     model = unescapeMessage(model);
     const repliedToEvent = RoomViewStore.getQuotingEvent();
 
@@ -175,20 +181,21 @@ export default class SendMessageComposer extends React.Component {
         const parts = this.model.parts;
         const firstPart = parts[0];
         if (firstPart) {
-            if (firstPart.type === "command") {
+            if (firstPart.type === "command" && firstPart.text.startsWith("/") && !firstPart.text.startsWith("//")) {
                 return true;
             }
             // be extra resilient when somehow the AutocompleteWrapperModel or
             // CommandPartCreator fails to insert a command part, so we don't send
             // a command as a message
-            if (firstPart.text.startsWith("/") && (firstPart.type === "plain" || firstPart.type === "pill-candidate")) {
+            if (firstPart.text.startsWith("/") && !firstPart.text.startsWith("//")
+                && (firstPart.type === "plain" || firstPart.type === "pill-candidate")) {
                 return true;
             }
         }
         return false;
     }
 
-    async _runSlashCommand() {
+    _getSlashCommand() {
         const commandText = this.model.parts.reduce((text, part) => {
             // use mxid to textify user pills in a command
             if (part.type === "user-pill") {
@@ -196,50 +203,86 @@ export default class SendMessageComposer extends React.Component {
             }
             return text + part.text;
         }, "");
-        const cmd = processCommandInput(this.props.room.roomId, commandText);
+        return [getCommand(this.props.room.roomId, commandText), commandText];
+    }
 
-        if (cmd) {
-            let error = cmd.error;
-            if (cmd.promise) {
-                try {
-                    await cmd.promise;
-                } catch (err) {
-                    error = err;
-                }
+    async _runSlashCommand(fn) {
+        const cmd = fn();
+        let error = cmd.error;
+        if (cmd.promise) {
+            try {
+                await cmd.promise;
+            } catch (err) {
+                error = err;
             }
-            if (error) {
-                console.error("Command failure: %s", error);
-                const ErrorDialog = sdk.getComponent("dialogs.ErrorDialog");
-                // assume the error is a server error when the command is async
-                const isServerError = !!cmd.promise;
-                const title = isServerError ? _td("Server error") : _td("Command error");
+        }
+        if (error) {
+            console.error("Command failure: %s", error);
+            const ErrorDialog = sdk.getComponent("dialogs.ErrorDialog");
+            // assume the error is a server error when the command is async
+            const isServerError = !!cmd.promise;
+            const title = isServerError ? _td("Server error") : _td("Command error");
 
-                let errText;
-                if (typeof error === 'string') {
-                    errText = error;
-                } else if (error.message) {
-                    errText = error.message;
-                } else {
-                    errText = _t("Server unavailable, overloaded, or something else went wrong.");
-                }
-
-                Modal.createTrackedDialog(title, '', ErrorDialog, {
-                    title: _t(title),
-                    description: errText,
-                });
+            let errText;
+            if (typeof error === 'string') {
+                errText = error;
+            } else if (error.message) {
+                errText = error.message;
             } else {
-                console.log("Command success.");
+                errText = _t("Server unavailable, overloaded, or something else went wrong.");
             }
+
+            Modal.createTrackedDialog(title, '', ErrorDialog, {
+                title: _t(title),
+                description: errText,
+            });
+        } else {
+            console.log("Command success.");
         }
     }
 
-    _sendMessage() {
+    async _sendMessage() {
         if (this.model.isEmpty) {
             return;
         }
+
+        let shouldSend = true;
+
         if (!containsEmote(this.model) && this._isSlashCommand()) {
-            this._runSlashCommand();
-        } else {
+            const [cmd, commandText] = this._getSlashCommand();
+            if (cmd) {
+                shouldSend = false;
+                this._runSlashCommand(cmd);
+            } else {
+                // ask the user if their unknown command should be sent as a message
+                const QuestionDialog = sdk.getComponent("dialogs.QuestionDialog");
+                const {finished} = Modal.createTrackedDialog("Unknown command", "", QuestionDialog, {
+                    title: _t("Unknown Command"),
+                    description: <div>
+                        <p>
+                            { _t("Unrecognised command: %(commandText)s", {commandText}) }
+                        </p>
+                        <p>
+                            { _t("You can use <code>/help</code> to list available commands. " +
+                                "Did you mean to send this as a message?", {}, {
+                                code: t => <code>{ t }</code>,
+                            }) }
+                        </p>
+                        <p>
+                            { _t("Hint: Begin your message with <code>//</code> to start it with a slash.", {}, {
+                                code: t => <code>{ t }</code>,
+                            }) }
+                        </p>
+                    </div>,
+                    button: _t('Send as message'),
+                });
+                const [sendAnyway] = await finished;
+                // if !sendAnyway bail to let the user edit the composer and try again
+                if (!sendAnyway) return;
+            }
+        }
+
+        if (shouldSend) {
             const isReply = !!RoomViewStore.getQuotingEvent();
             const {roomId} = this.props.room;
             const content = createMessageContent(this.model, this.props.permalinkCreator);
@@ -253,6 +296,7 @@ export default class SendMessageComposer extends React.Component {
                 });
             }
         }
+
         this.sendHistoryManager.save(this.model);
         // clear composer
         this.model.reset([]);

src/components/views/settings/EventIndexPanel.js

@@ -0,0 +1,187 @@
+/*
+Copyright 2020 The Matrix.org Foundation C.I.C.
+
+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 { _t } from '../../../languageHandler';
+import * as sdk from '../../../index';
+import Modal from '../../../Modal';
+import SettingsStore, {SettingLevel} from "../../../settings/SettingsStore";
+import AccessibleButton from "../elements/AccessibleButton";
+import {formatBytes, formatCountLong} from "../../../utils/FormattingUtils";
+import EventIndexPeg from "../../../indexing/EventIndexPeg";
+
+export default class EventIndexPanel extends React.Component {
+    constructor() {
+        super();
+
+        this.state = {
+            enabling: false,
+            eventIndexSize: 0,
+            roomCount: 0,
+            eventIndexingEnabled:
+                SettingsStore.getValueAt(SettingLevel.DEVICE, 'enableEventIndexing'),
+        };
+    }
+
+    async updateCurrentRoom(room) {
+        const eventIndex = EventIndexPeg.get();
+        const stats = await eventIndex.getStats();
+
+        this.setState({
+            eventIndexSize: stats.size,
+            roomCount: stats.roomCount,
+        });
+    }
+
+    componentWillUnmount(): void {
+        const eventIndex = EventIndexPeg.get();
+
+        if (eventIndex !== null) {
+            eventIndex.removeListener("changedCheckpoint", this.updateCurrentRoom.bind(this));
+        }
+    }
+
+    async componentWillMount(): void {
+        this.updateState();
+    }
+
+    async updateState() {
+        const eventIndex = EventIndexPeg.get();
+        const eventIndexingEnabled = SettingsStore.getValueAt(SettingLevel.DEVICE, 'enableEventIndexing');
+        const enabling = false;
+
+        let eventIndexSize = 0;
+        let roomCount = 0;
+
+        if (eventIndex !== null) {
+            eventIndex.on("changedCheckpoint", this.updateCurrentRoom.bind(this));
+
+            const stats = await eventIndex.getStats();
+            eventIndexSize = stats.size;
+            roomCount = stats.roomCount;
+        }
+
+        this.setState({
+            enabling,
+            eventIndexSize,
+            roomCount,
+            eventIndexingEnabled,
+        });
+    }
+
+    _onManage = async () => {
+        Modal.createTrackedDialogAsync('Message search', 'Message search',
+            import('../../../async-components/views/dialogs/eventindex/ManageEventIndexDialog'),
+            {
+                onFinished: () => {},
+            }, null, /* priority = */ false, /* static = */ true,
+        );
+    }
+
+    _onEnable = async () => {
+        this.setState({
+            enabling: true,
+        });
+
+        await EventIndexPeg.initEventIndex();
+        await EventIndexPeg.get().addInitialCheckpoints();
+        await EventIndexPeg.get().startCrawler();
+        await SettingsStore.setValue('enableEventIndexing', null, SettingLevel.DEVICE, true);
+        await this.updateState();
+    }
+
+    render() {
+        let eventIndexingSettings = null;
+        const InlineSpinner = sdk.getComponent('elements.InlineSpinner');
+
+        if (EventIndexPeg.get() !== null) {
+            eventIndexingSettings = (
+                <div>
+                    <div className='mx_SettingsTab_subsectionText'>
+                        {_t( "Securely cache encrypted messages locally for them " +
+                             "to appear in search results, using ")
+                        } {formatBytes(this.state.eventIndexSize, 0)}
+                        {_t( " to store messages from ")}
+                        {formatCountLong(this.state.roomCount)} {_t("rooms.")}
+                    </div>
+                    <div>
+                        <AccessibleButton kind="primary" onClick={this._onManage}>
+                            {_t("Manage")}
+                        </AccessibleButton>
+                    </div>
+                </div>
+            );
+        } else if (!this.state.eventIndexingEnabled && EventIndexPeg.supportIsInstalled()) {
+            eventIndexingSettings = (
+                <div>
+                    <div className='mx_SettingsTab_subsectionText'>
+                        {_t( "Securely cache encrypted messages locally for them to " +
+                             "appear in search results.")}
+                    </div>
+                    <div>
+                        <AccessibleButton kind="primary" disabled={this.state.enabling}
+                            onClick={this._onEnable}>
+                            {_t("Enable")}
+                        </AccessibleButton>
+                        {this.state.enabling ? <InlineSpinner /> : <div />}
+                    </div>
+                </div>
+            );
+        } else if (EventIndexPeg.platformHasSupport() && !EventIndexPeg.supportIsInstalled()) {
+            const nativeLink = (
+                "https://github.com/vector-im/riot-web/blob/develop/" +
+                "docs/native-node-modules.md#" +
+                "adding-seshat-for-search-in-e2e-encrypted-rooms"
+            );
+
+            eventIndexingSettings = (
+                <div>
+                    {
+                        _t( "Riot is missing some components required for securely " +
+                            "caching encrypted messages locally. If you'd like to " +
+                            "experiment with this feature, build a custom Riot Desktop " +
+                            "with <nativeLink>search components added</nativeLink>.",
+                            {},
+                            {
+                                'nativeLink': (sub) => <a href={nativeLink} target="_blank"
+                                    rel="noopener">{sub}</a>,
+                            },
+                        )
+                    }
+                </div>
+            );
+        } else {
+            eventIndexingSettings = (
+                <div>
+                    {
+                        _t( "Riot can't securely cache encrypted messages locally " +
+                            "while running in a web browser. Use <riotLink>Riot Desktop</riotLink> " +
+                            "for encrypted messages to appear in search results.",
+                            {},
+                            {
+                                'riotLink': (sub) => <a href="https://riot.im/download/desktop"
+                                    target="_blank" rel="noopener">{sub}</a>,
+                            },
+                        )
+                    }
+                </div>
+            );
+        }
+
+        return eventIndexingSettings;
+    }
+}

src/components/views/settings/tabs/user/GeneralUserSettingsTab.js

@@ -70,7 +70,16 @@ export default class GeneralUserSettingsTab extends React.Component {
         const cli = MatrixClientPeg.get();
 
         const serverSupportsSeparateAddAndBind = await cli.doesServerSupportSeparateAddAndBind();
-        this.setState({serverSupportsSeparateAddAndBind});
+
+        const capabilities = await cli.getCapabilities(); // this is cached
+        const changePasswordCap = capabilities['m.change_password'];
+
+        // You can change your password so long as the capability isn't explicitly disabled. The implicit
+        // behaviour is you can change your password when the capability is missing or has not-false as
+        // the enabled flag value.
+        const canChangePassword = !changePasswordCap || changePasswordCap['enabled'] !== false;
+
+        this.setState({serverSupportsSeparateAddAndBind, canChangePassword});
 
         this._getThreepidState();
     }
@@ -280,7 +289,7 @@ export default class GeneralUserSettingsTab extends React.Component {
         const PhoneNumbers = sdk.getComponent("views.settings.account.PhoneNumbers");
         const Spinner = sdk.getComponent("views.elements.Spinner");
 
-        const passwordChangeForm = (
+        let passwordChangeForm = (
             <ChangePassword
                 className="mx_GeneralUserSettingsTab_changePassword"
                 rowClassName=""
@@ -314,11 +323,18 @@ export default class GeneralUserSettingsTab extends React.Component {
             threepidSection = <Spinner />;
         }
 
+        let passwordChangeText = _t("Set a new account password...");
+        if (!this.state.canChangePassword) {
+            // Just don't show anything if you can't do anything.
+            passwordChangeText = null;
+            passwordChangeForm = null;
+        }
+
         return (
             <div className="mx_SettingsTab_section mx_GeneralUserSettingsTab_accountSection">
                 <span className="mx_SettingsTab_subheading">{_t("Account")}</span>
                 <p className="mx_SettingsTab_subsectionText">
-                    {_t("Set a new account password...")}
+                    {passwordChangeText}
                 </p>
                 {passwordChangeForm}
                 {threepidSection}

src/components/views/settings/tabs/user/HelpUserSettingsTab.js

@@ -21,15 +21,10 @@ import {MatrixClientPeg} from "../../../../../MatrixClientPeg";
 import AccessibleButton from "../../../elements/AccessibleButton";
 import SdkConfig from "../../../../../SdkConfig";
 import createRoom from "../../../../../createRoom";
-import packageJson from "../../../../../../package.json";
 import Modal from "../../../../../Modal";
 import * as sdk from "../../../../../";
 import PlatformPeg from "../../../../../PlatformPeg";
 
-// if this looks like a release, use the 'version' from package.json; else use
-// the git sha. Prepend version with v, to look like riot-web version
-const REACT_SDK_VERSION = 'dist' in packageJson ? packageJson.version : packageJson.gitHead || '<local>';
-
 // Simple method to help prettify GH Release Tags and Commit Hashes.
 const semVerRegex = /^v?(\d+\.\d+\.\d+(?:-rc.+)?)(?:-(?:\d+-g)?([0-9a-fA-F]+))?(?:-dirty)?$/i;
 const ghVersionLabel = function(repo, token='') {
@@ -188,9 +183,6 @@ export default class HelpUserSettingsTab extends React.Component {
             );
         }
 
-        const reactSdkVersion = REACT_SDK_VERSION !== '<local>'
-            ? ghVersionLabel('matrix-org/matrix-react-sdk', REACT_SDK_VERSION)
-            : REACT_SDK_VERSION;
         const vectorVersion = this.state.vectorVersion
             ? ghVersionLabel('vector-im/riot-web', this.state.vectorVersion)
             : 'unknown';
@@ -243,7 +235,6 @@ export default class HelpUserSettingsTab extends React.Component {
                 <div className='mx_SettingsTab_section mx_HelpUserSettingsTab_versions'>
                     <span className='mx_SettingsTab_subheading'>{_t("Versions")}</span>
                     <div className='mx_SettingsTab_subsectionText'>
-                        {_t("matrix-react-sdk version:")} {reactSdkVersion}<br />
                         {_t("riot-web version:")} {vectorVersion}<br />
                         {_t("olm version:")} {olmVersion}<br />
                         {updateButton}

src/components/views/settings/tabs/user/PreferencesUserSettingsTab.js

@@ -170,6 +170,7 @@ export default class PreferencesUserSettingsTab extends React.Component {
         return (
             <div className="mx_SettingsTab mx_PreferencesUserSettingsTab">
                 <div className="mx_SettingsTab_heading">{_t("Preferences")}</div>
+
                 <div className="mx_SettingsTab_section">
                     <span className="mx_SettingsTab_subheading">{_t("Composer")}</span>
                     {this._renderGroup(PreferencesUserSettingsTab.COMPOSER_SETTINGS)}

src/components/views/settings/tabs/user/SecurityUserSettingsTab.js

@@ -242,6 +242,7 @@ export default class SecurityUserSettingsTab extends React.Component {
     render() {
         const DevicesPanel = sdk.getComponent('views.settings.DevicesPanel');
         const SettingsFlag = sdk.getComponent('views.elements.SettingsFlag');
+        const EventIndexPanel = sdk.getComponent('views.settings.EventIndexPanel');
 
         const KeyBackupPanel = sdk.getComponent('views.settings.KeyBackupPanel');
         const keyBackup = (
@@ -253,6 +254,16 @@ export default class SecurityUserSettingsTab extends React.Component {
             </div>
         );
 
+        let eventIndex;
+        if (SettingsStore.isFeatureEnabled("feature_event_indexing")) {
+            eventIndex = (
+                <div className="mx_SettingsTab_section">
+                    <span className="mx_SettingsTab_subheading">{_t("Message search")}</span>
+                    <EventIndexPanel />
+                </div>
+            );
+        }
+
         // XXX: There's no such panel in the current cross-signing designs, but
         // it's useful to have for testing the feature. If there's no interest
         // in having advanced details here once all flows are implemented, we
@@ -281,6 +292,7 @@ export default class SecurityUserSettingsTab extends React.Component {
                     </div>
                 </div>
                 {keyBackup}
+                {eventIndex}
                 {crossSigning}
                 {this._renderCurrentDeviceInfo()}
                 <div className='mx_SettingsTab_section'>

src/components/views/toasts/NewSessionToast.js

@@ -32,7 +32,7 @@ export default class VerifySessionToast extends React.PureComponent {
         DeviceListener.sharedInstance().dismissVerification(this.props.deviceId);
     };
 
-    _onVerifyClick = async () => {
+    _onReviewClick = async () => {
         const cli = MatrixClientPeg.get();
         const DeviceVerifyDialog = sdk.getComponent('views.dialogs.DeviceVerifyDialog');
 
@@ -47,10 +47,10 @@ export default class VerifySessionToast extends React.PureComponent {
     render() {
         const FormButton = sdk.getComponent("elements.FormButton");
         return (<div>
-            <div className="mx_Toast_description">{_t("Other users may not trust it")}</div>
+            <div className="mx_Toast_description">{_t("Review & verify your new session")}</div>
             <div className="mx_Toast_buttons" aria-live="off">
                 <FormButton label={_t("Later")} kind="danger" onClick={this._onLaterClick} />
-                <FormButton label={_t("Verify")} onClick={this._onVerifyClick} />
+                <FormButton label={_t("Review")} onClick={this._onReviewClick} />
             </div>
         </div>);
     }

src/components/views/toasts/SetupEncryptionToast.js

@@ -0,0 +1,68 @@
+/*
+Copyright 2020 The Matrix.org Foundation C.I.C.
+
+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 PropTypes from 'prop-types';
+import * as sdk from "../../../index";
+import { _t } from '../../../languageHandler';
+import DeviceListener from '../../../DeviceListener';
+import { accessSecretStorage } from '../../../CrossSigningManager';
+
+export default class SetupEncryptionToast extends React.PureComponent {
+    static propTypes = {
+        toastKey: PropTypes.string.isRequired,
+        kind: PropTypes.oneOf(['set_up_encryption', 'verify_this_session', 'upgrade_encryption']).isRequired,
+    };
+
+    _onLaterClick = () => {
+        DeviceListener.sharedInstance().dismissEncryptionSetup();
+    };
+
+    _onSetupClick = async () => {
+        accessSecretStorage();
+    };
+
+    getDescription() {
+        switch (this.props.kind) {
+            case 'set_up_encryption':
+            case 'upgrade_encryption':
+                return _t('Verify your other devices easier');
+            case 'verify_this_session':
+                return _t('Other users may not trust it');
+        }
+    }
+
+    getSetupCaption() {
+        switch (this.props.kind) {
+            case 'set_up_encryption':
+            case 'upgrade_encryption':
+                return _t('Upgrade');
+            case 'verify_this_session':
+                return _t('Verify');
+        }
+    }
+
+    render() {
+        const FormButton = sdk.getComponent("elements.FormButton");
+        return (<div>
+            <div className="mx_Toast_description">{this.getDescription()}</div>
+            <div className="mx_Toast_buttons" aria-live="off">
+                <FormButton label={_t("Later")} kind="danger" onClick={this._onLaterClick} />
+                <FormButton label={this.getSetupCaption()} onClick={this._onSetupClick} />
+            </div>
+        </div>);
+    }
+}

src/components/views/toasts/VerificationRequestToast.js

@@ -23,6 +23,7 @@ import {RIGHT_PANEL_PHASES} from "../../../stores/RightPanelStorePhases";
 import {userLabelForEventRoom} from "../../../utils/KeyVerificationStateObserver";
 import dis from "../../../dispatcher";
 import ToastStore from "../../../stores/ToastStore";
+import Modal from "../../../Modal";
 
 export default class VerificationRequestToast extends React.PureComponent {
     constructor(props) {
@@ -38,6 +39,13 @@ export default class VerificationRequestToast extends React.PureComponent {
             this.setState({counter});
         }, 1000);
         request.on("change", this._checkRequestIsPending);
+        // We should probably have a separate class managing the active verification toasts,
+        // rather than monitoring this in the toast component itself, since we'll get problems
+        // like the toasdt not going away when the verification is cancelled unless it's the
+        // one on the top (ie. the one that's mounted).
+        // As a quick & dirty fix, check the toast is still relevant when it mounts (this prevents
+        // a toast hanging around after logging in if you did a verification as part of login).
+        this._checkRequestIsPending();
     }
 
     componentWillUnmount() {
@@ -65,22 +73,27 @@ export default class VerificationRequestToast extends React.PureComponent {
     accept = async () => {
         ToastStore.sharedInstance().dismissToast(this.props.toastKey);
         const {request} = this.props;
-        const {event} = request;
         // no room id for to_device requests
-        if (event.getRoomId()) {
-            dis.dispatch({
-                action: 'view_room',
-                room_id: event.getRoomId(),
-                should_peek: false,
-            });
-        }
         try {
-            await request.accept();
-            dis.dispatch({
-                action: "set_right_panel_phase",
-                phase: RIGHT_PANEL_PHASES.EncryptionPanel,
-                refireParams: {verificationRequest: request},
-            });
+            if (request.channel.roomId) {
+                dis.dispatch({
+                    action: 'view_room',
+                    room_id: request.channel.roomId,
+                    should_peek: false,
+                });
+                await request.accept();
+                dis.dispatch({
+                    action: "set_right_panel_phase",
+                    phase: RIGHT_PANEL_PHASES.EncryptionPanel,
+                    refireParams: {verificationRequest: request},
+                });
+            } else if (request.channel.deviceId && request.verifier) {
+                // show to_device verifications in dialog still
+                const IncomingSasDialog = sdk.getComponent("views.dialogs.IncomingSasDialog");
+                Modal.createTrackedDialog('Incoming Verification', '', IncomingSasDialog, {
+                    verifier: request.verifier,
+                }, null, /* priority = */ false, /* static = */ true);
+            }
         } catch (err) {
             console.error(err.message);
         }
@@ -89,13 +102,13 @@ export default class VerificationRequestToast extends React.PureComponent {
     render() {
         const FormButton = sdk.getComponent("elements.FormButton");
         const {request} = this.props;
-        const {event} = request;
         const userId = request.otherUserId;
-        let nameLabel = event.getRoomId() ? userLabelForEventRoom(userId, event) : userId;
+        const roomId = request.channel.roomId;
+        let nameLabel = roomId ? userLabelForEventRoom(userId, roomId) : userId;
         // for legacy to_device verification requests
         if (nameLabel === userId) {
             const client = MatrixClientPeg.get();
-            const user = client.getUser(event.getSender());
+            const user = client.getUser(userId);
             if (user && user.displayName) {
                 nameLabel = _t("%(name)s (%(userId)s)", {name: user.displayName, userId});
             }