Merge remote-tracking branch 'origin/develop' into dbkr/new_look_callview

src/components/structures/HomePage.tsx

@@ -15,7 +15,7 @@ limitations under the License.
 */
 
 import * as React from "react";
-import {useContext, useRef, useState} from "react";
+import {useContext, useState} from "react";
 
 import AutoHideScrollbar from './AutoHideScrollbar';
 import {getHomePageUrl} from "../../utils/pages";
@@ -24,16 +24,13 @@ import SdkConfig from "../../SdkConfig";
 import * as sdk from "../../index";
 import dis from "../../dispatcher/dispatcher";
 import {Action} from "../../dispatcher/actions";
-import {Transition} from "react-transition-group";
 import BaseAvatar from "../views/avatars/BaseAvatar";
 import {OwnProfileStore} from "../../stores/OwnProfileStore";
 import AccessibleButton from "../views/elements/AccessibleButton";
-import Tooltip from "../views/elements/Tooltip";
 import {UPDATE_EVENT} from "../../stores/AsyncStore";
 import {useEventEmitter} from "../../hooks/useEventEmitter";
 import MatrixClientContext from "../../contexts/MatrixClientContext";
-import classNames from "classnames";
-import {ENTERING} from "react-transition-group/Transition";
+import MiniAvatarUploader, {AVATAR_SIZE} from "../views/elements/MiniAvatarUploader";
 
 const onClickSendDm = () => dis.dispatch({action: 'view_create_chat'});
 const onClickExplore = () => dis.fire(Action.ViewRoomDirectory);
@@ -43,11 +40,9 @@ interface IProps {
     justRegistered?: boolean;
 }
 
-const avatarSize = 52;
-
 const getOwnProfile = (userId: string) => ({
     displayName: OwnProfileStore.instance.displayName || userId,
-    avatarUrl: OwnProfileStore.instance.getHttpAvatarUrl(avatarSize),
+    avatarUrl: OwnProfileStore.instance.getHttpAvatarUrl(AVATAR_SIZE),
 });
 
 const UserWelcomeTop = () => {
@@ -57,56 +52,23 @@ const UserWelcomeTop = () => {
     useEventEmitter(OwnProfileStore.instance, UPDATE_EVENT, () => {
         setOwnProfile(getOwnProfile(userId));
     });
-    const [busy, setBusy] = useState(false);
-
-    const uploadRef = useRef<HTMLInputElement>();
 
     return <div>
-        <input
-            type="file"
-            ref={uploadRef}
-            className="mx_ProfileSettings_avatarUpload"
-            onChange={async (ev) => {
-                if (!ev.target.files?.length) return;
-                setBusy(true);
-                const file = ev.target.files[0];
-                const uri = await cli.uploadContent(file);
-                await cli.setAvatarUrl(uri);
-                setBusy(false);
-            }}
-            accept="image/*"
-        />
-
-        <AccessibleButton
-            className={classNames("mx_HomePage_userAvatar", {
-                mx_HomePage_userAvatar_busy: busy,
-            })}
-            disabled={busy}
-            onClick={() => {
-                uploadRef.current.click();
-            }}
+        <MiniAvatarUploader
+            hasAvatar={!!ownProfile.avatarUrl}
+            hasAvatarLabel={_t("Great, that'll help people know it's you")}
+            noAvatarLabel={_t("Add a photo so people know it's you.")}
+            setAvatarUrl={url => cli.setAvatarUrl(url)}
         >
             <BaseAvatar
                 idName={userId}
                 name={ownProfile.displayName}
                 url={ownProfile.avatarUrl}
-                width={avatarSize}
-                height={avatarSize}
+                width={AVATAR_SIZE}
+                height={AVATAR_SIZE}
                 resizeMethod="crop"
             />
-
-            <Transition appear in timeout={3000}>
-                {state => (
-                    <Tooltip
-                        label={ownProfile.avatarUrl || busy
-                            ? _t("Great, that'll help people know it's you")
-                            : _t("Add a photo so people know it's you.")}
-                        visible={state !== ENTERING}
-                        forceOnRight
-                    />
-                )}
-            </Transition>
-        </AccessibleButton>
+        </MiniAvatarUploader>
 
         <h1>{ _t("Welcome %(name)s", { name: ownProfile.displayName }) }</h1>
         <h4>{ _t("Now, let's help you get started") }</h4>

src/components/structures/MatrixChat.tsx

@@ -653,8 +653,9 @@ export default class MatrixChat extends React.PureComponent<IProps, IState> {
             }
             case Action.ViewRoomDirectory: {
                 const RoomDirectory = sdk.getComponent("structures.RoomDirectory");
-                Modal.createTrackedDialog('Room directory', '', RoomDirectory, {},
-                    'mx_RoomDirectory_dialogWrapper', false, true);
+                Modal.createTrackedDialog('Room directory', '', RoomDirectory, {
+                    initialText: payload.initialText,
+                }, 'mx_RoomDirectory_dialogWrapper', false, true);
 
                 // View the welcome or home page if we need something to look at
                 this.viewSomethingBehindModal();
@@ -677,7 +678,7 @@ export default class MatrixChat extends React.PureComponent<IProps, IState> {
                 this.chatCreateOrReuse(payload.user_id);
                 break;
             case 'view_create_chat':
-                showStartChatInviteDialog();
+                showStartChatInviteDialog(payload.initialText || "");
                 break;
             case 'view_invite':
                 showRoomInviteDialog(payload.roomId);

src/components/structures/MessagePanel.js

@@ -30,6 +30,8 @@ import {_t} from "../../languageHandler";
 import {haveTileForEvent} from "../views/rooms/EventTile";
 import {textForEvent} from "../../TextForEvent";
 import IRCTimelineProfileResizer from "../views/elements/IRCTimelineProfileResizer";
+import DMRoomMap from "../../utils/DMRoomMap";
+import NewRoomIntro from "../views/rooms/NewRoomIntro";
 
 const CONTINUATION_MAX_INTERVAL = 5 * 60 * 1000; // 5 minutes
 const continuedTypes = ['m.sticker', 'm.room.message'];
@@ -952,15 +954,25 @@ class CreationGrouper {
         }).reduce((a, b) => a.concat(b), []);
         // Get sender profile from the latest event in the summary as the m.room.create doesn't contain one
         const ev = this.events[this.events.length - 1];
+
+        let summaryText;
+        const roomId = ev.getRoomId();
+        const creator = ev.sender ? ev.sender.name : ev.getSender();
+        if (DMRoomMap.shared().getUserIdForRoomId(roomId)) {
+            summaryText = _t("%(creator)s created this DM.", { creator });
+        } else {
+            summaryText = _t("%(creator)s created and configured the room.", { creator });
+        }
+
+        ret.push(<NewRoomIntro key="newroomintro" />);
+
         ret.push(
             <EventListSummary
                  key="roomcreationsummary"
                  events={this.events}
                  onToggle={panel._onHeightChanged} // Update scroll state
                  summaryMembers={[ev.sender]}
-                 summaryText={_t("%(creator)s created and configured the room.", {
-                     creator: ev.sender ? ev.sender.name : ev.getSender(),
-                 })}
+                 summaryText={summaryText}
             >
                  { eventTiles }
             </EventListSummary>,

src/components/structures/RoomDirectory.js

@@ -44,6 +44,7 @@ function track(action) {
 
 export default class RoomDirectory extends React.Component {
     static propTypes = {
+        initialText: PropTypes.string,
         onFinished: PropTypes.func.isRequired,
     };
 
@@ -61,7 +62,7 @@ export default class RoomDirectory extends React.Component {
             error: null,
             instanceId: undefined,
             roomServer: MatrixClientPeg.getHomeserverName(),
-            filterString: null,
+            filterString: this.props.initialText || "",
             selectedCommunityId: SettingsStore.getValue("feature_communities_v2_prototypes")
                 ? selectedCommunityId
                 : null,
@@ -686,6 +687,7 @@ export default class RoomDirectory extends React.Component {
                     onJoinClick={this.onJoinFromSearchClick}
                     placeholder={placeholder}
                     showJoinButton={showJoinButton}
+                    initialText={this.props.initialText}
                 />
                 {dropdown}
             </div>;

src/components/structures/RoomSearch.tsx

@@ -148,7 +148,7 @@ export default class RoomSearch extends React.PureComponent<IProps, IState> {
                 onBlur={this.onBlur}
                 onChange={this.onChange}
                 onKeyDown={this.onKeyDown}
-                placeholder={_t("Search")}
+                placeholder={_t("Filter")}
                 autoComplete="off"
             />
         );
@@ -164,7 +164,7 @@ export default class RoomSearch extends React.PureComponent<IProps, IState> {
         if (this.props.isMinimized) {
             icon = (
                 <AccessibleButton
-                    title={_t("Search rooms")}
+                    title={_t("Filter rooms and people")}
                     className="mx_RoomSearch_icon mx_RoomSearch_minimizedHandle"
                     onClick={this.openSearch}
                 />

src/components/structures/RoomStatusBar.js

@@ -41,9 +41,6 @@ export default class RoomStatusBar extends React.Component {
     static propTypes = {
         // the room this statusbar is representing.
         room: PropTypes.object.isRequired,
-        // This is true when the user is alone in the room, but has also sent a message.
-        // Used to suggest to the user to invite someone
-        sentMessageAndIsAlone: PropTypes.bool,
 
         // The active call in the room, if any (means we show the call bar
         // along with the status of the call)
@@ -68,10 +65,6 @@ export default class RoomStatusBar extends React.Component {
         // 'you are alone' bar
         onInviteClick: PropTypes.func,
 
-        // callback for when the user clicks on the 'stop warning me' button in the
-        // 'you are alone' bar
-        onStopWarningClick: PropTypes.func,
-
         // callback for when we do something that changes the size of the
         // status bar. This is used to trigger a re-layout in the parent
         // component.
@@ -159,10 +152,7 @@ export default class RoomStatusBar extends React.Component {
     // changed - so we use '0' to indicate normal size, and other values to
     // indicate other sizes.
     _getSize() {
-        if (this._shouldShowConnectionError() ||
-            this._showCallBar() ||
-            this.props.sentMessageAndIsAlone
-        ) {
+        if (this._shouldShowConnectionError() || this._showCallBar()) {
             return STATUS_BAR_EXPANDED;
         } else if (this.state.unsentMessages.length > 0) {
             return STATUS_BAR_EXPANDED_LARGE;
@@ -325,24 +315,6 @@ export default class RoomStatusBar extends React.Component {
             );
         }
 
-        // If you're alone in the room, and have sent a message, suggest to invite someone
-        if (this.props.sentMessageAndIsAlone && !this.props.isPeeking) {
-            return (
-                <div className="mx_RoomStatusBar_isAlone">
-                    { _t("There's no one else here! Would you like to <inviteText>invite others</inviteText> " +
-                            "or <nowarnText>stop warning about the empty room</nowarnText>?",
-                        {},
-                        {
-                            'inviteText': (sub) =>
-                                <a className="mx_RoomStatusBar_resend_link" key="invite" onClick={this.props.onInviteClick}>{ sub }</a>,
-                            'nowarnText': (sub) =>
-                                <a className="mx_RoomStatusBar_resend_link" key="nowarn" onClick={this.props.onStopWarningClick}>{ sub }</a>,
-                        },
-                    ) }
-                </div>
-            );
-        }
-
         return null;
     }
 

src/components/structures/RoomView.tsx

@@ -150,7 +150,6 @@ export interface IState {
     guestsCanJoin: boolean;
     canPeek: boolean;
     showApps: boolean;
-    isAlone: boolean;
     isPeeking: boolean;
     showingPinned: boolean;
     showReadReceipts: boolean;
@@ -223,7 +222,6 @@ export default class RoomView extends React.Component<IProps, IState> {
             guestsCanJoin: false,
             canPeek: false,
             showApps: false,
-            isAlone: false,
             isPeeking: false,
             showingPinned: false,
             showReadReceipts: true,
@@ -705,9 +703,8 @@ export default class RoomView extends React.Component<IProps, IState> {
 
     private onAction = payload => {
         switch (payload.action) {
-            case 'message_send_failed':
             case 'message_sent':
-                this.checkIfAlone(this.state.room);
+                this.checkDesktopNotifications();
                 break;
             case 'post_sticker_message':
                 this.injectSticker(
@@ -1025,36 +1022,15 @@ export default class RoomView extends React.Component<IProps, IState> {
     }
 
     // rate limited because a power level change will emit an event for every member in the room.
-    private updateRoomMembers = rateLimitedFunc((dueToMember) => {
+    private updateRoomMembers = rateLimitedFunc(() => {
         this.updateDMState();
-
-        let memberCountInfluence = 0;
-        if (dueToMember && dueToMember.membership === "invite" && this.state.room.getInvitedMemberCount() === 0) {
-            // A member got invited, but the room hasn't detected that change yet. Influence the member
-            // count by 1 to counteract this.
-            memberCountInfluence = 1;
-        }
-        this.checkIfAlone(this.state.room, memberCountInfluence);
-
         this.updateE2EStatus(this.state.room);
     }, 500);
 
-    private checkIfAlone(room: Room, countInfluence?: number) {
-        let warnedAboutLonelyRoom = false;
-        if (localStorage) {
-            warnedAboutLonelyRoom = Boolean(localStorage.getItem('mx_user_alone_warned_' + this.state.room.roomId));
-        }
-        if (warnedAboutLonelyRoom) {
-            if (this.state.isAlone) this.setState({isAlone: false});
-            return;
-        }
-
-        let joinedOrInvitedMemberCount = room.getJoinedMemberCount() + room.getInvitedMemberCount();
-        if (countInfluence) joinedOrInvitedMemberCount += countInfluence;
-        this.setState({isAlone: joinedOrInvitedMemberCount === 1});
-
-        // if they are not alone additionally prompt the user about notifications so they don't miss replies
-        if (joinedOrInvitedMemberCount > 1 && Notifier.shouldShowPrompt()) {
+    private checkDesktopNotifications() {
+        const memberCount = this.state.room.getJoinedMemberCount() + this.state.room.getInvitedMemberCount();
+        // if they are not alone prompt the user about notifications so they don't miss replies
+        if (memberCount > 1 && Notifier.shouldShowPrompt()) {
             showNotificationsToast(true);
         }
     }
@@ -1091,14 +1067,6 @@ export default class RoomView extends React.Component<IProps, IState> {
             action: 'view_invite',
             roomId: this.state.room.roomId,
         });
-        this.setState({isAlone: false}); // there's a good chance they'll invite someone
-    };
-
-    private onStopAloneWarningClick = () => {
-        if (localStorage) {
-            localStorage.setItem('mx_user_alone_warned_' + this.state.room.roomId, String(true));
-        }
-        this.setState({isAlone: false});
     };
 
     private onJoinButtonClicked = () => {
@@ -1147,16 +1115,9 @@ export default class RoomView extends React.Component<IProps, IState> {
 
         ev.dataTransfer.dropEffect = 'none';
 
-        const items = [...ev.dataTransfer.items];
-        if (items.length >= 1) {
-            const isDraggingFiles = items.every(function(item) {
-                return item.kind == 'file';
-            });
-
-            if (isDraggingFiles) {
-                this.setState({ draggingFile: true });
-                ev.dataTransfer.dropEffect = 'copy';
-            }
+        if (ev.dataTransfer.types.includes("Files") || ev.dataTransfer.types.includes("application/x-moz-file")) {
+            this.setState({ draggingFile: true });
+            ev.dataTransfer.dropEffect = 'copy';
         }
     };
 
@@ -1797,12 +1758,10 @@ export default class RoomView extends React.Component<IProps, IState> {
             isStatusAreaExpanded = this.state.statusBarVisible;
             statusBar = <RoomStatusBar
                 room={this.state.room}
-                sentMessageAndIsAlone={this.state.isAlone}
                 callState={this.state.callState}
                 callType={activeCall ? activeCall.type : null}
                 isPeeking={myMembership !== "join"}
                 onInviteClick={this.onInviteButtonClick}
-                onStopWarningClick={this.onStopAloneWarningClick}
                 onVisible={this.onStatusBarVisible}
                 onHidden={this.onStatusBarHidden}
             />;

src/components/structures/ToastContainer.tsx

@@ -55,11 +55,11 @@ export default class ToastContainer extends React.Component<{}, IState> {
         let toast;
         if (totalCount !== 0) {
             const topToast = this.state.toasts[0];
-            const {title, icon, key, component, props} = topToast;
+            const {title, icon, key, component, className, props} = topToast;
             const toastClasses = classNames("mx_Toast_toast", {
                 "mx_Toast_hasIcon": icon,
                 [`mx_Toast_icon_${icon}`]: icon,
-            });
+            }, className);
 
             let countIndicator;
             if (isStacked || this.state.countSeen > 0) {

src/components/structures/UserMenu.tsx

@@ -190,11 +190,18 @@ export default class UserMenu extends React.Component<IProps, IState> {
         this.setState({contextMenuPosition: null}); // also close the menu
     };
 
-    private onSignOutClick = (ev: ButtonEvent) => {
+    private onSignOutClick = async (ev: ButtonEvent) => {
         ev.preventDefault();
         ev.stopPropagation();
 
-        Modal.createTrackedDialog('Logout from LeftPanel', '', LogoutDialog);
+        const cli = MatrixClientPeg.get();
+        if (!cli || !cli.isCryptoEnabled() || !(await cli.exportRoomKeys())?.length) {
+            // log out without user prompt if they have no local megolm sessions
+            dis.dispatch({action: 'logout'});
+        } else {
+            Modal.createTrackedDialog('Logout from LeftPanel', '', LogoutDialog);
+        }
+
         this.setState({contextMenuPosition: null}); // also close the menu
     };
 
@@ -203,6 +210,7 @@ export default class UserMenu extends React.Component<IProps, IState> {
         ev.stopPropagation();
 
         defaultDispatcher.dispatch({action: 'view_home_page'});
+        this.setState({contextMenuPosition: null}); // also close the menu
     };
 
     private onCommunitySettingsClick = (ev: ButtonEvent) => {

src/components/structures/auth/Registration.js

@@ -502,6 +502,11 @@ export default class Registration extends React.Component {
             return null;
         }
 
+        // Hide the server picker once the user is doing UI Auth unless encountered a fatal server error
+        if (this.state.phase !== PHASE_SERVER_DETAILS && this.state.doingUIAuth && !this.state.serverErrorIsFatal) {
+            return null;
+        }
+
         // If we're on a different phase, we only show the server type selector,
         // which is always shown if we allow custom URLs at all.
         // (if there's a fatal server error, we need to show the full server
@@ -582,17 +587,6 @@ export default class Registration extends React.Component {
                 <Spinner />
             </div>;
         } else if (this.state.flows.length) {
-            let onEditServerDetailsClick = null;
-            // If custom URLs are allowed and we haven't selected the Free server type, wire
-            // up the server details edit link.
-            if (
-                PHASES_ENABLED &&
-                !SdkConfig.get()['disable_custom_urls'] &&
-                this.state.serverType !== ServerType.FREE
-            ) {
-                onEditServerDetailsClick = this.onEditServerDetailsClick;
-            }
-
             return <RegistrationForm
                 defaultUsername={this.state.formVals.username}
                 defaultEmail={this.state.formVals.email}
@@ -600,7 +594,6 @@ export default class Registration extends React.Component {
                 defaultPhoneNumber={this.state.formVals.phoneNumber}
                 defaultPassword={this.state.formVals.password}
                 onRegisterClick={this.onFormSubmit}
-                onEditServerDetailsClick={onEditServerDetailsClick}
                 flows={this.state.flows}
                 serverConfig={this.props.serverConfig}
                 canSubmit={!this.state.serverErrorIsFatal}
@@ -686,11 +679,48 @@ export default class Registration extends React.Component {
                 { regDoneText }
             </div>;
         } else {
+            let yourMatrixAccountText = _t('Create your Matrix account on %(serverName)s', {
+                serverName: this.props.serverConfig.hsName,
+            });
+            if (this.props.serverConfig.hsNameIsDifferent) {
+                const TextWithTooltip = sdk.getComponent("elements.TextWithTooltip");
+
+                yourMatrixAccountText = _t('Create your Matrix account on <underlinedServerName />', {}, {
+                    'underlinedServerName': () => {
+                        return <TextWithTooltip
+                            class="mx_Login_underlinedServerName"
+                            tooltip={this.props.serverConfig.hsUrl}
+                        >
+                            {this.props.serverConfig.hsName}
+                        </TextWithTooltip>;
+                    },
+                });
+            }
+
+            // If custom URLs are allowed, user is not doing UIA flows and they haven't selected the Free server type,
+            // wire up the server details edit link.
+            let editLink = null;
+            if (PHASES_ENABLED &&
+                !SdkConfig.get()['disable_custom_urls'] &&
+                this.state.serverType !== ServerType.FREE &&
+                !this.state.doingUIAuth
+            ) {
+                editLink = (
+                    <a className="mx_AuthBody_editServerDetails" href="#" onClick={this.onEditServerDetailsClick}>
+                        {_t('Change')}
+                    </a>
+                );
+            }
+
             body = <div>
                 <h2>{ _t('Create your account') }</h2>
                 { errorText }
                 { serverDeadSection }
                 { this.renderServerComponent() }
+                { this.state.phase !== PHASE_SERVER_DETAILS && <h3>
+                    {yourMatrixAccountText}
+                    {editLink}
+                </h3> }
                 { this.renderRegisterComponent() }
                 { goBack }
                 { signIn }

src/components/views/auth/CaptchaForm.js

@@ -102,6 +102,10 @@ export default class CaptchaForm extends React.Component {
         console.log("Loaded recaptcha script.");
         try {
             this._renderRecaptcha(DIV_ID);
+            // clear error if re-rendered
+            this.setState({
+                errorText: null,
+            });
             CountlyAnalytics.instance.track("onboarding_grecaptcha_loaded");
         } catch (e) {
             this.setState({

src/components/views/auth/CountryDropdown.js

@@ -123,7 +123,7 @@ export default class CountryDropdown extends React.Component {
         const options = displayedCountries.map((country) => {
             return <div className="mx_CountryDropdown_option" key={country.iso2}>
                 { this._flagImgForIso2(country.iso2) }
-                { country.name } (+{ country.prefix })
+                { _t(country.name) } (+{ country.prefix })
             </div>;
         });
 

src/components/views/auth/InteractiveAuthEntryComponents.js

@@ -421,12 +421,12 @@ export class EmailIdentityAuthEntry extends React.Component {
             return <Spinner />;
         } else {
             return (
-                <div>
-                    <p>{ _t("An email has been sent to %(emailAddress)s",
-                        { emailAddress: (sub) => <i>{ this.props.inputs.emailAddress }</i> },
+                <div className="mx_InteractiveAuthEntryComponents_emailWrapper">
+                    <p>{ _t("A confirmation email has been sent to %(emailAddress)s",
+                        { emailAddress: (sub) => <b>{ this.props.inputs.emailAddress }</b> },
                     ) }
                     </p>
-                    <p>{ _t("Please check your email to continue registration.") }</p>
+                    <p>{ _t("Open the link in the email to continue registration.") }</p>
                 </div>
             );
         }

src/components/views/auth/RegistrationForm.js

@@ -51,7 +51,6 @@ export default class RegistrationForm extends React.Component {
         defaultUsername: PropTypes.string,
         defaultPassword: PropTypes.string,
         onRegisterClick: PropTypes.func.isRequired, // onRegisterClick(Object) => ?Promise
-        onEditServerDetailsClick: PropTypes.func,
         flows: PropTypes.arrayOf(PropTypes.object).isRequired,
         serverConfig: PropTypes.instanceOf(ValidatedServerConfig).isRequired,
         canSubmit: PropTypes.bool,
@@ -250,6 +249,7 @@ export default class RegistrationForm extends React.Component {
 
     validateEmailRules = withValidation({
         description: () => _t("Use an email address to recover your account"),
+        hideDescriptionIfValid: true,
         rules: [
             {
                 key: "required",
@@ -326,6 +326,7 @@ export default class RegistrationForm extends React.Component {
 
     validatePhoneNumberRules = withValidation({
         description: () => _t("Other users can invite you to rooms using your contact details"),
+        hideDescriptionIfValid: true,
         rules: [
             {
                 key: "required",
@@ -356,6 +357,7 @@ export default class RegistrationForm extends React.Component {
 
     validateUsernameRules = withValidation({
         description: () => _t("Use lowercase letters, numbers, dashes and underscores only"),
+        hideDescriptionIfValid: true,
         rules: [
             {
                 key: "required",
@@ -458,7 +460,7 @@ export default class RegistrationForm extends React.Component {
             ref={field => this[FIELD_PASSWORD_CONFIRM] = field}
             type="password"
             autoComplete="new-password"
-            label={_t("Confirm")}
+            label={_t("Confirm password")}
             value={this.state.passwordConfirm}
             onChange={this.onPasswordConfirmChange}
             onValidate={this.onPasswordConfirmValidate}
@@ -510,33 +512,6 @@ export default class RegistrationForm extends React.Component {
     }
 
     render() {
-        let yourMatrixAccountText = _t('Create your Matrix account on %(serverName)s', {
-            serverName: this.props.serverConfig.hsName,
-        });
-        if (this.props.serverConfig.hsNameIsDifferent) {
-            const TextWithTooltip = sdk.getComponent("elements.TextWithTooltip");
-
-            yourMatrixAccountText = _t('Create your Matrix account on <underlinedServerName />', {}, {
-                'underlinedServerName': () => {
-                    return <TextWithTooltip
-                        class="mx_Login_underlinedServerName"
-                        tooltip={this.props.serverConfig.hsUrl}
-                    >
-                        {this.props.serverConfig.hsName}
-                    </TextWithTooltip>;
-                },
-            });
-        }
-
-        let editLink = null;
-        if (this.props.onEditServerDetailsClick) {
-            editLink = <a className="mx_AuthBody_editServerDetails"
-                href="#" onClick={this.props.onEditServerDetailsClick}
-            >
-                {_t('Change')}
-            </a>;
-        }
-
         const registerButton = (
             <input className="mx_Login_submit" type="submit" value={_t("Register")} disabled={!this.props.canSubmit} />
         );
@@ -572,10 +547,6 @@ export default class RegistrationForm extends React.Component {
 
         return (
             <div>
-                <h3>
-                    {yourMatrixAccountText}
-                    {editLink}
-                </h3>
                 <form onSubmit={this.onSubmit}>
                     <div className="mx_AuthBody_fieldRow">
                         {this.renderUsername()}

src/components/views/avatars/BaseAvatar.tsx

@@ -51,7 +51,8 @@ const calculateUrls = (url, urls) => {
         _urls = urls || [];
 
         if (url) {
-            _urls.unshift(url); // put in urls[0]
+            // copy urls and put url first
+            _urls = [url, ..._urls];
         }
     }
 

src/components/views/avatars/RoomAvatar.tsx

@@ -35,6 +35,7 @@ interface IProps {
     height?: number;
     resizeMethod?: ResizeMethod;
     viewAvatarOnClick?: boolean;
+    onClick?(): void;
 }
 
 interface IState {
@@ -130,7 +131,7 @@ export default class RoomAvatar extends React.Component<IProps, IState> {
     };
 
     public render() {
-        const {room, oobData, viewAvatarOnClick, ...otherProps} = this.props;
+        const {room, oobData, viewAvatarOnClick, onClick, ...otherProps} = this.props;
 
         const roomName = room ? room.name : oobData.name;
 
@@ -139,7 +140,7 @@ export default class RoomAvatar extends React.Component<IProps, IState> {
                 name={roomName}
                 idName={room ? room.roomId : null}
                 urls={this.state.urls}
-                onClick={viewAvatarOnClick && this.state.urls[0] ? this.onRoomAvatarClick : null}
+                onClick={viewAvatarOnClick && this.state.urls[0] ? this.onRoomAvatarClick : onClick}
             />
         );
     }

src/components/views/dialogs/FeedbackDialog.js

@@ -48,8 +48,8 @@ export default (props) => {
                 title: _t('Feedback sent'),
                 description: _t('Thank you!'),
             });
-            props.onFinished();
         }
+        props.onFinished();
     };
 
     const brand = SdkConfig.get().brand;

src/components/views/dialogs/InviteDialog.js

@@ -31,7 +31,7 @@ import dis from "../../../dispatcher/dispatcher";
 import IdentityAuthClient from "../../../IdentityAuthClient";
 import Modal from "../../../Modal";
 import {humanizeTime} from "../../../utils/humanize";
-import createRoom, {canEncryptToAllUsers, privateShouldBeEncrypted} from "../../../createRoom";
+import createRoom, {canEncryptToAllUsers, findDMForUser, privateShouldBeEncrypted} from "../../../createRoom";
 import {inviteMultipleToRoom, showCommunityInviteDialog} from "../../../RoomInvite";
 import {Key} from "../../../Keyboard";
 import {Action} from "../../../dispatcher/actions";
@@ -41,6 +41,7 @@ import {CommunityPrototypeStore} from "../../../stores/CommunityPrototypeStore";
 import SettingsStore from "../../../settings/SettingsStore";
 import {UIFeature} from "../../../settings/UIFeature";
 import CountlyAnalytics from "../../../CountlyAnalytics";
+import {Room} from "matrix-js-sdk/src/models/room";
 
 // we have a number of types defined from the Matrix spec which can't reasonably be altered here.
 /* eslint-disable camelcase */
@@ -308,10 +309,14 @@ export default class InviteDialog extends React.PureComponent {
 
         // The room ID this dialog is for. Only required for KIND_INVITE.
         roomId: PropTypes.string,
+
+        // Initial value to populate the filter with
+        initialText: PropTypes.string,
     };
 
     static defaultProps = {
         kind: KIND_DM,
+        initialText: "",
     };
 
     _debounceTimer: number = null;
@@ -338,7 +343,7 @@ export default class InviteDialog extends React.PureComponent {
 
         this.state = {
             targets: [], // array of Member objects (see interface above)
-            filterText: "",
+            filterText: this.props.initialText,
             recents: InviteDialog.buildRecents(alreadyInvited),
             numRecentsShown: INITIAL_ROOMS_SHOWN,
             suggestions: this._buildSuggestions(alreadyInvited),
@@ -356,6 +361,12 @@ export default class InviteDialog extends React.PureComponent {
         this._editorRef = createRef();
     }
 
+    componentDidMount() {
+        if (this.props.initialText) {
+            this._updateSuggestions(this.props.initialText);
+        }
+    }
+
     static buildRecents(excludedTargetIds: Set<string>): {userId: string, user: RoomMember, lastActive: number} {
         const rooms = DMRoomMap.shared().getUniqueRoomsWithIndividuals(); // map of userId => js-sdk Room
 
@@ -575,7 +586,12 @@ export default class InviteDialog extends React.PureComponent {
         const targetIds = targets.map(t => t.userId);
 
         // Check if there is already a DM with these people and reuse it if possible.
-        const existingRoom = DMRoomMap.shared().getDMRoomForIdentifiers(targetIds);
+        let existingRoom: Room;
+        if (targetIds.length === 1) {
+            existingRoom = findDMForUser(MatrixClientPeg.get(), targetIds[0]);
+        } else {
+            existingRoom = DMRoomMap.shared().getDMRoomForIdentifiers(targetIds);
+        }
         if (existingRoom) {
             dis.dispatch({
                 action: 'view_room',
@@ -687,6 +703,115 @@ export default class InviteDialog extends React.PureComponent {
         }
     };
 
+    _updateSuggestions = async (term) => {
+        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) {
+                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. We stick it at the
+                        // top so it is most obviously presented to the user.
+                        r.results.splice(0, 0, {
+                            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);
+
+                    // Add a result anyways, just without a profile. We stick it at the
+                    // top so it is most obviously presented to the user.
+                    r.results.splice(0, 0, {
+                        user_id: term,
+                        display_name: term,
+                        avatar_url: null,
+                    });
+                }
+            }
+
+            this.setState({
+                serverResultsMixin: r.results.map(u => ({
+                    userId: u.user_id,
+                    user: new DirectoryMember(u),
+                })),
+            });
+        }).catch(e => {
+            console.error("Error searching user directory:");
+            console.error(e);
+            this.setState({serverResultsMixin: []}); // clear results because it's moderately fatal
+        });
+
+        // Whenever we search the directory, also try to search the identity server. It's
+        // all debounced the same anyways.
+        if (!this.state.canUseIdentityServer) {
+            // The user doesn't have an identity server set - warn them of that.
+            this.setState({tryingIdentityServer: true});
+            return;
+        }
+        if (term.indexOf('@') > 0 && Email.looksValid(term) && SettingsStore.getValue(UIFeature.IdentityServer)) {
+            // Start off by suggesting the plain email while we try and resolve it
+            // to a real account.
+            this.setState({
+                // per above: the userId is a lie here - it's just a regular identifier
+                threepidResultsMixin: [{user: new ThreepidMember(term), userId: term}],
+            });
+            try {
+                const authClient = new IdentityAuthClient();
+                const token = await authClient.getAccessToken();
+                if (term !== this.state.filterText) return; // abandon hope
+
+                const lookup = await MatrixClientPeg.get().lookupThreePid(
+                    'email',
+                    term,
+                    undefined, // callback
+                    token,
+                );
+                if (term !== this.state.filterText) return; // abandon hope
+
+                if (!lookup || !lookup.mxid) {
+                    // We weren't able to find anyone - we're already suggesting the plain email
+                    // as an alternative, so do nothing.
+                    return;
+                }
+
+                // We append the user suggestion to give the user an option to click
+                // the email anyways, and so we don't cause things to jump around. In
+                // theory, the user would see the user pop up and think "ah yes, that
+                // person!"
+                const profile = await MatrixClientPeg.get().getProfileInfo(lookup.mxid);
+                if (term !== this.state.filterText || !profile) return; // abandon hope
+                this.setState({
+                    threepidResultsMixin: [...this.state.threepidResultsMixin, {
+                        user: new DirectoryMember({
+                            user_id: lookup.mxid,
+                            display_name: profile.displayname,
+                            avatar_url: profile.avatar_url,
+                        }),
+                        userId: lookup.mxid,
+                    }],
+                });
+            } catch (e) {
+                console.error("Error searching identity server:");
+                console.error(e);
+                this.setState({threepidResultsMixin: []}); // clear results because it's moderately fatal
+            }
+        }
+    };
+
     _updateFilter = (e) => {
         const term = e.target.value;
         this.setState({filterText: term});
@@ -697,113 +822,8 @@ export default class InviteDialog extends React.PureComponent {
         if (this._debounceTimer) {
             clearTimeout(this._debounceTimer);
         }
-        this._debounceTimer = setTimeout(async () => {
-            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) {
-                    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. We stick it at the
-                            // top so it is most obviously presented to the user.
-                            r.results.splice(0, 0, {
-                                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);
-
-                        // Add a result anyways, just without a profile. We stick it at the
-                        // top so it is most obviously presented to the user.
-                        r.results.splice(0, 0, {
-                            user_id: term,
-                            display_name: term,
-                            avatar_url: null,
-                        });
-                    }
-                }
-
-                this.setState({
-                    serverResultsMixin: r.results.map(u => ({
-                        userId: u.user_id,
-                        user: new DirectoryMember(u),
-                    })),
-                });
-            }).catch(e => {
-                console.error("Error searching user directory:");
-                console.error(e);
-                this.setState({serverResultsMixin: []}); // clear results because it's moderately fatal
-            });
-
-            // Whenever we search the directory, also try to search the identity server. It's
-            // all debounced the same anyways.
-            if (!this.state.canUseIdentityServer) {
-                // The user doesn't have an identity server set - warn them of that.
-                this.setState({tryingIdentityServer: true});
-                return;
-            }
-            if (term.indexOf('@') > 0 && Email.looksValid(term) && SettingsStore.getValue(UIFeature.IdentityServer)) {
-                // Start off by suggesting the plain email while we try and resolve it
-                // to a real account.
-                this.setState({
-                    // per above: the userId is a lie here - it's just a regular identifier
-                    threepidResultsMixin: [{user: new ThreepidMember(term), userId: term}],
-                });
-                try {
-                    const authClient = new IdentityAuthClient();
-                    const token = await authClient.getAccessToken();
-                    if (term !== this.state.filterText) return; // abandon hope
-
-                    const lookup = await MatrixClientPeg.get().lookupThreePid(
-                        'email',
-                        term,
-                        undefined, // callback
-                        token,
-                    );
-                    if (term !== this.state.filterText) return; // abandon hope
-
-                    if (!lookup || !lookup.mxid) {
-                        // We weren't able to find anyone - we're already suggesting the plain email
-                        // as an alternative, so do nothing.
-                        return;
-                    }
-
-                    // We append the user suggestion to give the user an option to click
-                    // the email anyways, and so we don't cause things to jump around. In
-                    // theory, the user would see the user pop up and think "ah yes, that
-                    // person!"
-                    const profile = await MatrixClientPeg.get().getProfileInfo(lookup.mxid);
-                    if (term !== this.state.filterText || !profile) return; // abandon hope
-                    this.setState({
-                        threepidResultsMixin: [...this.state.threepidResultsMixin, {
-                            user: new DirectoryMember({
-                                user_id: lookup.mxid,
-                                display_name: profile.displayname,
-                                avatar_url: profile.avatar_url,
-                            }),
-                            userId: lookup.mxid,
-                        }],
-                    });
-                } catch (e) {
-                    console.error("Error searching identity server:");
-                    console.error(e);
-                    this.setState({threepidResultsMixin: []}); // clear results because it's moderately fatal
-                }
-            }
+        this._debounceTimer = setTimeout(() => {
+            this._updateSuggestions(term);
         }, 150); // 150ms debounce (human reaction time + some)
     };
 

src/components/views/dialogs/ModalWidgetDialog.tsx

@@ -23,6 +23,11 @@ import {
     IModalWidgetCloseRequest,
     IModalWidgetOpenRequestData,
     IModalWidgetReturnData,
+    ISetModalButtonEnabledActionRequest,
+    IWidgetApiAcknowledgeResponseData,
+    IWidgetApiErrorResponseData,
+    BuiltInModalButtonID,
+    ModalButtonID,
     ModalButtonKind,
     Widget,
     WidgetApiFromWidgetAction,
@@ -31,6 +36,7 @@ import {StopGapWidgetDriver} from "../../../stores/widgets/StopGapWidgetDriver";
 import {MatrixClientPeg} from "../../../MatrixClientPeg";
 import RoomViewStore from "../../../stores/RoomViewStore";
 import {OwnProfileStore} from "../../../stores/OwnProfileStore";
+import { arrayFastClone } from "../../../utils/arrays";
 
 interface IProps {
     widgetDefinition: IModalWidgetOpenRequestData;
@@ -40,15 +46,19 @@ interface IProps {
 
 interface IState {
     messaging?: ClientWidgetApi;
+    disabledButtonIds: ModalButtonID[];
 }
 
 const MAX_BUTTONS = 3;
 
 export default class ModalWidgetDialog extends React.PureComponent<IProps, IState> {
     private readonly widget: Widget;
+    private readonly possibleButtons: ModalButtonID[];
     private appFrame: React.RefObject<HTMLIFrameElement> = React.createRef();
 
-    state: IState = {};
+    state: IState = {
+        disabledButtonIds: [],
+    };
 
     constructor(props) {
         super(props);
@@ -58,6 +68,7 @@ export default class ModalWidgetDialog extends React.PureComponent<IProps, IStat
             creatorUserId: MatrixClientPeg.get().getUserId(),
             id: `modal_${this.props.sourceWidgetId}`,
         });
+        this.possibleButtons = (this.props.widgetDefinition.buttons || []).map(b => b.id);
     }
 
     public componentDidMount() {
@@ -79,12 +90,35 @@ export default class ModalWidgetDialog extends React.PureComponent<IProps, IStat
     private onLoad = () => {
         this.state.messaging.once("ready", this.onReady);
         this.state.messaging.on(`action:${WidgetApiFromWidgetAction.CloseModalWidget}`, this.onWidgetClose);
+        this.state.messaging.on(`action:${WidgetApiFromWidgetAction.SetModalButtonEnabled}`, this.onButtonEnableToggle);
     };
 
     private onWidgetClose = (ev: CustomEvent<IModalWidgetCloseRequest>) => {
         this.props.onFinished(true, ev.detail.data);
     }
 
+    private onButtonEnableToggle = (ev: CustomEvent<ISetModalButtonEnabledActionRequest>) => {
+        ev.preventDefault();
+        const isClose = ev.detail.data.button === BuiltInModalButtonID.Close;
+        if (isClose || !this.possibleButtons.includes(ev.detail.data.button)) {
+            return this.state.messaging.transport.reply(ev.detail, {
+                error: {message: "Invalid button"},
+            } as IWidgetApiErrorResponseData);
+        }
+
+        let buttonIds: ModalButtonID[];
+        if (ev.detail.data.enabled) {
+            buttonIds = arrayFastClone(this.state.disabledButtonIds).filter(i => i !== ev.detail.data.button);
+        } else {
+            // use a set to swap the operation to avoid memory leaky arrays.
+            const tempSet = new Set(this.state.disabledButtonIds);
+            tempSet.add(ev.detail.data.button);
+            buttonIds = Array.from(tempSet);
+        }
+        this.setState({disabledButtonIds: buttonIds});
+        this.state.messaging.transport.reply(ev.detail, {} as IWidgetApiAcknowledgeResponseData);
+    };
+
     public render() {
         const templated = this.widget.getCompleteUrl({
             currentRoomId: RoomViewStore.getRoomId(),

src/components/views/elements/AccessibleButton.tsx

@@ -39,7 +39,7 @@ interface IProps extends React.InputHTMLAttributes<Element> {
     tabIndex?: number;
     disabled?: boolean;
     className?: string;
-    onClick?(e?: ButtonEvent): void;
+    onClick(e?: ButtonEvent): void;
 }
 
 interface IAccessibleButtonProps extends React.InputHTMLAttributes<Element> {

src/components/views/elements/DirectorySearchBox.js

@@ -20,8 +20,8 @@ import * as sdk from '../../../index';
 import { _t } from '../../../languageHandler';
 
 export default class DirectorySearchBox extends React.Component {
-    constructor() {
-        super();
+    constructor(props) {
+        super(props);
         this._collectInput = this._collectInput.bind(this);
         this._onClearClick = this._onClearClick.bind(this);
         this._onChange = this._onChange.bind(this);
@@ -31,7 +31,7 @@ export default class DirectorySearchBox extends React.Component {
         this.input = null;
 
         this.state = {
-            value: '',
+            value: this.props.initialText || '',
         };
     }
 
@@ -90,15 +90,20 @@ export default class DirectorySearchBox extends React.Component {
         }
 
         return <div className={`mx_DirectorySearchBox ${this.props.className} mx_textinput`}>
-                <input type="text" name="dirsearch" value={this.state.value}
-                    className="mx_textinput_icon mx_textinput_search"
-                    ref={this._collectInput}
-                    onChange={this._onChange} onKeyUp={this._onKeyUp}
-                    placeholder={this.props.placeholder} autoFocus
-                />
-                { joinButton }
-                <AccessibleButton className="mx_DirectorySearchBox_clear" onClick={this._onClearClick}></AccessibleButton>
-            </div>;
+            <input
+                type="text"
+                name="dirsearch"
+                value={this.state.value}
+                className="mx_textinput_icon mx_textinput_search"
+                ref={this._collectInput}
+                onChange={this._onChange}
+                onKeyUp={this._onKeyUp}
+                placeholder={this.props.placeholder}
+                autoFocus
+            />
+            { joinButton }
+            <AccessibleButton className="mx_DirectorySearchBox_clear" onClick={this._onClearClick} />
+        </div>;
     }
 }
 
@@ -109,4 +114,5 @@ DirectorySearchBox.propTypes = {
     onJoinClick: PropTypes.func,
     placeholder: PropTypes.string,
     showJoinButton: PropTypes.bool,
+    initialText: PropTypes.string,
 };

src/components/views/elements/IconButton.js

@@ -1,34 +0,0 @@
-/*
-Copyright 2019 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 AccessibleButton from "./AccessibleButton";
-
-export default function IconButton(props) {
-    const {icon, className, ...restProps} = props;
-
-    let newClassName = (className || "") + " mx_IconButton";
-    newClassName = newClassName + " mx_IconButton_icon_" + icon;
-
-    const allProps = Object.assign({}, restProps, {className: newClassName});
-
-    return React.createElement(AccessibleButton, allProps);
-}
-
-IconButton.propTypes = Object.assign({
-    icon: PropTypes.string,
-}, AccessibleButton.propTypes);

src/components/views/elements/MiniAvatarUploader.tsx

@@ -0,0 +1,90 @@
+/*
+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, {useContext, useRef, useState} from 'react';
+import classNames from 'classnames';
+
+import AccessibleButton from "./AccessibleButton";
+import Tooltip from './Tooltip';
+import MatrixClientContext from "../../../contexts/MatrixClientContext";
+import {useTimeout} from "../../../hooks/useTimeout";
+
+export const AVATAR_SIZE = 52;
+
+interface IProps {
+    hasAvatar: boolean;
+    noAvatarLabel?: string;
+    hasAvatarLabel?: string;
+    setAvatarUrl(url: string): Promise<void>;
+}
+
+const MiniAvatarUploader: React.FC<IProps> = ({ hasAvatar, hasAvatarLabel, noAvatarLabel, setAvatarUrl, children }) => {
+    const cli = useContext(MatrixClientContext);
+    const [busy, setBusy] = useState(false);
+    const [hover, setHover] = useState(false);
+    const [show, setShow] = useState(false);
+
+    useTimeout(() => {
+        setShow(true);
+    }, 3000); // show after 3 seconds
+    useTimeout(() => {
+        setShow(false);
+    }, 13000); // hide after being shown for 10 seconds
+
+    const uploadRef = useRef<HTMLInputElement>();
+
+    const label = (hasAvatar || busy) ? hasAvatarLabel : noAvatarLabel;
+
+    return <React.Fragment>
+        <input
+            type="file"
+            ref={uploadRef}
+            className="mx_MiniAvatarUploader_input"
+            onChange={async (ev) => {
+                if (!ev.target.files?.length) return;
+                setBusy(true);
+                const file = ev.target.files[0];
+                const uri = await cli.uploadContent(file);
+                await setAvatarUrl(uri);
+                setBusy(false);
+            }}
+            accept="image/*"
+        />
+
+        <AccessibleButton
+            className={classNames("mx_MiniAvatarUploader", {
+                mx_MiniAvatarUploader_busy: busy,
+                mx_MiniAvatarUploader_hasAvatar: hasAvatar,
+            })}
+            disabled={busy}
+            onClick={() => {
+                uploadRef.current.click();
+            }}
+            onMouseOver={() => setHover(true)}
+            onMouseLeave={() => setHover(false)}
+        >
+            { children }
+
+            <Tooltip
+                label={label}
+                visible={!!label && (hover || show)}
+                forceOnRight
+            />
+        </AccessibleButton>
+    </React.Fragment>;
+};
+
+export default MiniAvatarUploader;

src/components/views/elements/Validation.tsx

@@ -33,6 +33,7 @@ interface IRule<T, D = void> {
 interface IArgs<T, D = void> {
     rules: IRule<T, D>[];
     description(this: T, derivedData: D): React.ReactChild;
+    hideDescriptionIfValid?: boolean;
     deriveData?(data: Data): Promise<D>;
 }
 
@@ -54,6 +55,8 @@ export interface IValidationResult {
  * @param {Function} description
  *     Function that returns a string summary of the kind of value that will
  *     meet the validation rules. Shown at the top of the validation feedback.
+ * @param {Boolean} hideDescriptionIfValid
+ *     If true, don't show the description if the validation passes validation.
  * @param {Function} deriveData
  *     Optional function that returns a Promise to an object of generic type D.
  *     The result of this Promise is passed to rule methods `skip`, `test`, `valid`, and `invalid`.
@@ -71,7 +74,9 @@ export interface IValidationResult {
  *     A validation function that takes in the current input value and returns
  *     the overall validity and a feedback UI that can be rendered for more detail.
  */
-export default function withValidation<T = undefined, D = void>({ description, deriveData, rules }: IArgs<T, D>) {
+export default function withValidation<T = undefined, D = void>({
+    description, hideDescriptionIfValid, deriveData, rules,
+}: IArgs<T, D>) {
     return async function onValidate({ value, focused, allowEmpty = true }: IFieldState): Promise<IValidationResult> {
         if (!value && allowEmpty) {
             return {
@@ -156,7 +161,7 @@ export default function withValidation<T = undefined, D = void>({ description, d
         }
 
         let summary;
-        if (description) {
+        if (description && (details || !hideDescriptionIfValid)) {
             // We're setting `this` to whichever component holds the validation
             // function. That allows rules to access the state of the component.
             const content = description.call(this, derivedData);

src/components/views/messages/EncryptionEvent.js

@@ -1,63 +0,0 @@
-/*
-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 { _t } from '../../../languageHandler';
-import { MatrixClientPeg } from '../../../MatrixClientPeg';
-
-export default class EncryptionEvent extends React.Component {
-    render() {
-        const {mxEvent} = this.props;
-
-        let body;
-        let classes = "mx_EventTile_bubble mx_cryptoEvent mx_cryptoEvent_icon";
-        const isRoomEncrypted = MatrixClientPeg.get().isRoomEncrypted(mxEvent.getRoomId());
-        if (mxEvent.getContent().algorithm === 'm.megolm.v1.aes-sha2' && isRoomEncrypted) {
-            body = <div>
-                <div className="mx_cryptoEvent_title">{_t("Encryption enabled")}</div>
-                <div className="mx_cryptoEvent_subtitle">
-                    {_t(
-                        "Messages in this room are end-to-end encrypted. " +
-                        "Learn more & verify this user in their user profile.",
-                    )}
-                </div>
-            </div>;
-        } else if (isRoomEncrypted) {
-            body = <div>
-                <div className="mx_cryptoEvent_title">{_t("Encryption enabled")}</div>
-                <div className="mx_cryptoEvent_subtitle">
-                    {_t("Ignored attempt to disable encryption")}
-                </div>
-            </div>;
-        } else {
-            body = <div>
-                <div className="mx_cryptoEvent_title">{_t("Encryption not enabled")}</div>
-                <div className="mx_cryptoEvent_subtitle">{_t("The encryption used by this room isn't supported.")}</div>
-            </div>;
-            classes += " mx_cryptoEvent_icon_warning";
-        }
-
-        return (<div className={classes}>
-            {body}
-        </div>);
-    }
-}
-
-EncryptionEvent.propTypes = {
-    /* the MatrixEvent to show */
-    mxEvent: PropTypes.object.isRequired,
-};

src/components/views/messages/EncryptionEvent.tsx

@@ -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, {forwardRef, useContext} from 'react';
+import {MatrixEvent} from "matrix-js-sdk/src/models/event";
+
+import { _t } from '../../../languageHandler';
+import { MatrixClientPeg } from '../../../MatrixClientPeg';
+import EventTileBubble from "./EventTileBubble";
+import MatrixClientContext from "../../../contexts/MatrixClientContext";
+import DMRoomMap from "../../../utils/DMRoomMap";
+
+interface IProps {
+    mxEvent: MatrixEvent;
+}
+
+const EncryptionEvent = forwardRef<HTMLDivElement, IProps>(({mxEvent}, ref) => {
+    const cli = useContext(MatrixClientContext);
+    const roomId = mxEvent.getRoomId();
+    const isRoomEncrypted = MatrixClientPeg.get().isRoomEncrypted(roomId);
+
+    if (mxEvent.getContent().algorithm === 'm.megolm.v1.aes-sha2' && isRoomEncrypted) {
+        let subtitle: string;
+        const dmPartner = DMRoomMap.shared().getUserIdForRoomId(roomId);
+        if (dmPartner) {
+            const displayName = cli?.getRoom(roomId)?.getMember(dmPartner)?.rawDisplayName || dmPartner;
+            subtitle = _t("Messages here are end-to-end encrypted. " +
+                "Verify %(displayName)s in their profile - tap on their avatar.", { displayName });
+        } else {
+            subtitle = _t("Messages in this room are end-to-end encrypted. " +
+                "When people join, you can verify them in their profile, just tap on their avatar.");
+        }
+
+        return <EventTileBubble
+            className="mx_cryptoEvent mx_cryptoEvent_icon"
+            title={_t("Encryption enabled")}
+            subtitle={subtitle}
+        />;
+    } else if (isRoomEncrypted) {
+        return <EventTileBubble
+            className="mx_cryptoEvent mx_cryptoEvent_icon"
+            title={_t("Encryption enabled")}
+            subtitle={_t("Ignored attempt to disable encryption")}
+        />;
+    }
+
+    return <EventTileBubble
+        className="mx_cryptoEvent mx_cryptoEvent_icon mx_cryptoEvent_icon_warning"
+        title={_t("Encryption not enabled")}
+        subtitle={_t("The encryption used by this room isn't supported.")}
+        ref={ref}
+    />;
+});
+
+export default EncryptionEvent;

src/components/views/messages/EventTileBubble.tsx

@@ -0,0 +1,34 @@
+/*
+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, {forwardRef, ReactNode} from "react";
+import classNames from "classnames";
+
+interface IProps {
+    className: string;
+    title: string;
+    subtitle?: ReactNode;
+}
+
+const EventTileBubble = forwardRef<HTMLDivElement, IProps>(({ className, title, subtitle, children }, ref) => {
+    return <div className={classNames("mx_EventTileBubble", className)} ref={ref}>
+        <div className="mx_EventTileBubble_title">{ title }</div>
+        { subtitle && <div className="mx_EventTileBubble_subtitle">{ subtitle }</div> }
+        { children }
+    </div>;
+});
+
+export default EventTileBubble;

src/components/views/messages/MJitsiWidgetEvent.tsx

@@ -18,6 +18,7 @@ import React from 'react';
 import { MatrixEvent } from "matrix-js-sdk/src/models/event";
 import { _t } from "../../../languageHandler";
 import WidgetStore from "../../../stores/WidgetStore";
+import EventTileBubble from "./EventTileBubble";
 
 interface IProps {
     mxEvent: MatrixEvent;
@@ -40,37 +41,24 @@ export default class MJitsiWidgetEvent extends React.PureComponent<IProps> {
 
         if (!url) {
             // removed
-            return (
-                <div className='mx_EventTile_bubble mx_MJitsiWidgetEvent'>
-                    <div className='mx_MJitsiWidgetEvent_title'>
-                        {_t('Video conference ended by %(senderName)s', {senderName})}
-                    </div>
-                </div>
-            );
+            return <EventTileBubble
+                className="mx_MJitsiWidgetEvent"
+                title={_t('Video conference ended by %(senderName)s', {senderName})}
+            />;
         } else if (prevUrl) {
             // modified
-            return (
-                <div className='mx_EventTile_bubble mx_MJitsiWidgetEvent'>
-                    <div className='mx_MJitsiWidgetEvent_title'>
-                        {_t('Video conference updated by %(senderName)s', {senderName})}
-                    </div>
-                    <div className='mx_MJitsiWidgetEvent_subtitle'>
-                        {joinCopy}
-                    </div>
-                </div>
-            );
+            return <EventTileBubble
+                className="mx_MJitsiWidgetEvent"
+                title={_t('Video conference updated by %(senderName)s', {senderName})}
+                subtitle={joinCopy}
+            />;
         } else {
             // assume added
-            return (
-                <div className='mx_EventTile_bubble mx_MJitsiWidgetEvent'>
-                    <div className='mx_MJitsiWidgetEvent_title'>
-                        {_t("Video conference started by %(senderName)s", {senderName})}
-                    </div>
-                    <div className='mx_MJitsiWidgetEvent_subtitle'>
-                        {joinCopy}
-                    </div>
-                </div>
-            );
+            return <EventTileBubble
+                className="mx_MJitsiWidgetEvent"
+                title={_t("Video conference started by %(senderName)s", {senderName})}
+                subtitle={joinCopy}
+            />;
         }
     }
 }

src/components/views/messages/MKeyVerificationConclusion.js

@@ -21,6 +21,7 @@ import {MatrixClientPeg} from '../../../MatrixClientPeg';
 import { _t } from '../../../languageHandler';
 import {getNameForEventRoom, userLabelForEventRoom}
     from '../../../utils/KeyVerificationStateObserver';
+import EventTileBubble from "./EventTileBubble";
 
 export default class MKeyVerificationConclusion extends React.Component {
     constructor(props) {
@@ -115,14 +116,14 @@ export default class MKeyVerificationConclusion extends React.Component {
         }
 
         if (title) {
-            const subtitle = userLabelForEventRoom(request.otherUserId, mxEvent.getRoomId());
-            const classes = classNames("mx_EventTile_bubble", "mx_cryptoEvent", "mx_cryptoEvent_icon", {
+            const classes = classNames("mx_cryptoEvent mx_cryptoEvent_icon", {
                 mx_cryptoEvent_icon_verified: request.done,
             });
-            return (<div className={classes}>
-                <div className="mx_cryptoEvent_title">{title}</div>
-                <div className="mx_cryptoEvent_subtitle">{subtitle}</div>
-            </div>);
+            return <EventTileBubble
+                className={classes}
+                title={title}
+                subtitle={userLabelForEventRoom(request.otherUserId, mxEvent.getRoomId())}
+            />;
         }
 
         return null;

src/components/views/messages/MKeyVerificationRequest.js

@@ -24,6 +24,7 @@ import {getNameForEventRoom, userLabelForEventRoom}
 import dis from "../../../dispatcher/dispatcher";
 import {RightPanelPhases} from "../../../stores/RightPanelStorePhases";
 import {Action} from "../../../dispatcher/actions";
+import EventTileBubble from "./EventTileBubble";
 
 export default class MKeyVerificationRequest extends React.Component {
     constructor(props) {
@@ -146,10 +147,8 @@ export default class MKeyVerificationRequest extends React.Component {
 
         if (!request.initiatedByMe) {
             const name = getNameForEventRoom(request.requestingUserId, mxEvent.getRoomId());
-            title = (<div className="mx_cryptoEvent_title">{
-                _t("%(name)s wants to verify", {name})}</div>);
-            subtitle = (<div className="mx_cryptoEvent_subtitle">{
-                userLabelForEventRoom(request.requestingUserId, mxEvent.getRoomId())}</div>);
+            title = _t("%(name)s wants to verify", {name});
+            subtitle = userLabelForEventRoom(request.requestingUserId, mxEvent.getRoomId());
             if (request.canAccept) {
                 stateNode = (<div className="mx_cryptoEvent_buttons">
                     <FormButton kind="danger" onClick={this._onRejectClicked} label={_t("Decline")} />
@@ -157,18 +156,18 @@ export default class MKeyVerificationRequest extends React.Component {
                 </div>);
             }
         } else { // request sent by us
-            title = (<div className="mx_cryptoEvent_title">{
-                _t("You sent a verification request")}</div>);
-            subtitle = (<div className="mx_cryptoEvent_subtitle">{
-                userLabelForEventRoom(request.receivingUserId, mxEvent.getRoomId())}</div>);
+            title = _t("You sent a verification request");
+            subtitle = userLabelForEventRoom(request.receivingUserId, mxEvent.getRoomId());
         }
 
         if (title) {
-            return (<div className="mx_EventTile_bubble mx_cryptoEvent mx_cryptoEvent_icon">
-                {title}
-                {subtitle}
-                {stateNode}
-            </div>);
+            return <EventTileBubble
+                className="mx_cryptoEvent mx_cryptoEvent_icon"
+                title={title}
+                subtitle={subtitle}
+            >
+                { stateNode }
+            </EventTileBubble>;
         }
         return null;
     }

src/components/views/messages/RoomCreate.js

@@ -22,6 +22,7 @@ import dis from '../../../dispatcher/dispatcher';
 import { RoomPermalinkCreator } from '../../../utils/permalinks/Permalinks';
 import { _t } from '../../../languageHandler';
 import {MatrixClientPeg} from '../../../MatrixClientPeg';
+import EventTileBubble from "./EventTileBubble";
 
 export default class RoomCreate extends React.Component {
     static propTypes = {
@@ -51,17 +52,16 @@ export default class RoomCreate extends React.Component {
         const permalinkCreator = new RoomPermalinkCreator(prevRoom, predecessor['room_id']);
         permalinkCreator.load();
         const predecessorPermalink = permalinkCreator.forEvent(predecessor['event_id']);
-        return <div className="mx_CreateEvent">
-            <div className="mx_CreateEvent_image" />
-            <div className="mx_CreateEvent_header">
-                {_t("This room is a continuation of another conversation.")}
-            </div>
-            <a className="mx_CreateEvent_link"
-                href={predecessorPermalink}
-                onClick={this._onLinkClicked}
-            >
+        const link = (
+            <a href={predecessorPermalink} onClick={this._onLinkClicked}>
                 {_t("Click here to see older messages.")}
             </a>
-        </div>;
+        );
+
+        return <EventTileBubble
+            className="mx_CreateEvent"
+            title={_t("This room is a continuation of another conversation.")}
+            subtitle={link}
+        />;
     }
 }

src/components/views/right_panel/UserInfo.tsx

@@ -28,7 +28,7 @@ import {EventTimeline} from 'matrix-js-sdk/src/models/event-timeline';
 import dis from '../../../dispatcher/dispatcher';
 import Modal from '../../../Modal';
 import {_t} from '../../../languageHandler';
-import createRoom, {privateShouldBeEncrypted} from '../../../createRoom';
+import createRoom, { findDMForUser, privateShouldBeEncrypted } from '../../../createRoom';
 import DMRoomMap from '../../../utils/DMRoomMap';
 import AccessibleButton from '../elements/AccessibleButton';
 import SdkConfig from '../../../SdkConfig';
@@ -51,7 +51,6 @@ import BaseCard from "./BaseCard";
 import {E2EStatus} from "../../../utils/ShieldUtils";
 import ImageView from "../elements/ImageView";
 import Spinner from "../elements/Spinner";
-import IconButton from "../elements/IconButton";
 import PowerSelector from "../elements/PowerSelector";
 import MemberAvatar from "../avatars/MemberAvatar";
 import PresenceLabel from "../rooms/PresenceLabel";
@@ -106,17 +105,7 @@ export const getE2EStatus = (cli: MatrixClient, userId: string, devices: IDevice
 };
 
 async function openDMForUser(matrixClient: MatrixClient, userId: string) {
-    const dmRooms = DMRoomMap.shared().getDMRoomsForUserId(userId);
-    const lastActiveRoom = dmRooms.reduce((lastActiveRoom, roomId) => {
-        const room = matrixClient.getRoom(roomId);
-        if (!room || room.getMyMembership() === "leave") {
-            return lastActiveRoom;
-        }
-        if (!lastActiveRoom || lastActiveRoom.getLastActiveTimestamp() < room.getLastActiveTimestamp()) {
-            return room;
-        }
-        return lastActiveRoom;
-    }, null);
+    const lastActiveRoom = findDMForUser(matrixClient, userId);
 
     if (lastActiveRoom) {
         dis.dispatch({
@@ -1028,24 +1017,15 @@ const PowerLevelSection: React.FC<{
     roomPermissions: IRoomPermissions;
     powerLevels: IPowerLevelsContent;
 }> = ({user, room, roomPermissions, powerLevels}) => {
-    const [isEditing, setEditing] = useState(false);
-    if (isEditing) {
-        return (<PowerLevelEditor
-            user={user} room={room} roomPermissions={roomPermissions}
-            onFinished={() => setEditing(false)} />);
+    if (roomPermissions.canEdit) {
+        return (<PowerLevelEditor user={user} room={room} roomPermissions={roomPermissions} />);
     } else {
         const powerLevelUsersDefault = powerLevels.users_default || 0;
         const powerLevel = parseInt(user.powerLevel, 10);
-        const modifyButton = roomPermissions.canEdit ?
-            (<IconButton icon="edit" onClick={() => setEditing(true)} />) : null;
         const role = textualPowerLevel(powerLevel, powerLevelUsersDefault);
-        const label = _t("<strong>%(role)s</strong> in %(roomName)s",
-            {role, roomName: room.name},
-            {strong: label => <strong>{label}</strong>},
-        );
         return (
             <div className="mx_UserInfo_profileField">
-                <div className="mx_UserInfo_roleDescription">{label}{modifyButton}</div>
+                <div className="mx_UserInfo_roleDescription">{role}</div>
             </div>
         );
     }
@@ -1055,20 +1035,15 @@ const PowerLevelEditor: React.FC<{
     user: User;
     room: Room;
     roomPermissions: IRoomPermissions;
-    onFinished(): void;
-}> = ({user, room, roomPermissions, onFinished}) => {
+}> = ({user, room, roomPermissions}) => {
     const cli = useContext(MatrixClientContext);
 
-    const [isUpdating, setIsUpdating] = useState(false);
     const [selectedPowerLevel, setSelectedPowerLevel] = useState(parseInt(user.powerLevel, 10));
-    const [isDirty, setIsDirty] = useState(false);
-    const onPowerChange = useCallback((powerLevel) => {
-        setIsDirty(true);
-        setSelectedPowerLevel(parseInt(powerLevel, 10));
-    }, [setSelectedPowerLevel, setIsDirty]);
+    const onPowerChange = useCallback(async (powerLevelStr: string) => {
+        const powerLevel = parseInt(powerLevelStr, 10);
+        setSelectedPowerLevel(powerLevel);
 
-    const changePowerLevel = useCallback(async () => {
-        const _applyPowerChange = (roomId, target, powerLevel, powerLevelEvent) => {
+        const applyPowerChange = (roomId, target, powerLevel, powerLevelEvent) => {
             return cli.setPowerLevel(roomId, target, parseInt(powerLevel), powerLevelEvent).then(
                 function() {
                     // NO-OP; rely on the m.room.member event coming down else we could
@@ -1084,64 +1059,42 @@ const PowerLevelEditor: React.FC<{
             );
         };
 
-        try {
-            if (!isDirty) {
-                return;
-            }
+        const roomId = user.roomId;
+        const target = user.userId;
 
-            setIsUpdating(true);
+        const powerLevelEvent = room.currentState.getStateEvents("m.room.power_levels", "");
+        if (!powerLevelEvent) return;
 
-            const powerLevel = selectedPowerLevel;
+        const myUserId = cli.getUserId();
+        const myPower = powerLevelEvent.getContent().users[myUserId];
+        if (myPower && parseInt(myPower) === powerLevel) {
+            const {finished} = Modal.createTrackedDialog('Promote to PL100 Warning', '', QuestionDialog, {
+                title: _t("Warning!"),
+                description:
+                    <div>
+                        { _t("You will not be able to undo this change as you are promoting the user " +
+                            "to have the same power level as yourself.") }<br />
+                        { _t("Are you sure?") }
+                    </div>,
+                button: _t("Continue"),
+            });
 
-            const roomId = user.roomId;
-            const target = user.userId;
-
-            const powerLevelEvent = room.currentState.getStateEvents("m.room.power_levels", "");
-            if (!powerLevelEvent) return;
-
-            if (!powerLevelEvent.getContent().users) {
-                _applyPowerChange(roomId, target, powerLevel, powerLevelEvent);
-                return;
-            }
-
-            const myUserId = cli.getUserId();
+            const [confirmed] = await finished;
+            if (!confirmed) return;
+        } else if (myUserId === target) {
             // If we are changing our own PL it can only ever be decreasing, which we cannot reverse.
-            if (myUserId === target) {
-                try {
-                    if (!(await warnSelfDemote())) return;
-                } catch (e) {
-                    console.error("Failed to warn about self demotion: ", e);
-                }
-                await _applyPowerChange(roomId, target, powerLevel, powerLevelEvent);
-                return;
+            try {
+                if (!(await warnSelfDemote())) return;
+            } catch (e) {
+                console.error("Failed to warn about self demotion: ", e);
             }
-
-            const myPower = powerLevelEvent.getContent().users[myUserId];
-            if (parseInt(myPower) === powerLevel) {
-                const {finished} = Modal.createTrackedDialog('Promote to PL100 Warning', '', QuestionDialog, {
-                    title: _t("Warning!"),
-                    description:
-                        <div>
-                            { _t("You will not be able to undo this change as you are promoting the user " +
-                                "to have the same power level as yourself.") }<br />
-                            { _t("Are you sure?") }
-                        </div>,
-                    button: _t("Continue"),
-                });
-
-                const [confirmed] = await finished;
-                if (!confirmed) return;
-            }
-            await _applyPowerChange(roomId, target, powerLevel, powerLevelEvent);
-        } finally {
-            onFinished();
         }
-    }, [user.roomId, user.userId, cli, selectedPowerLevel, isDirty, setIsUpdating, onFinished, room]);
+
+        await applyPowerChange(roomId, target, powerLevel, powerLevelEvent);
+    }, [user.roomId, user.userId, cli, room]);
 
     const powerLevelEvent = room.currentState.getStateEvents("m.room.power_levels", "");
     const powerLevelUsersDefault = powerLevelEvent ? powerLevelEvent.getContent().users_default : 0;
-    const buttonOrSpinner = isUpdating ? <Spinner w={16} h={16} /> :
-        <IconButton icon="check" onClick={changePowerLevel} />;
 
     return (
         <div className="mx_UserInfo_profileField">
@@ -1151,9 +1104,7 @@ const PowerLevelEditor: React.FC<{
                 maxValue={roomPermissions.modifyLevelMax}
                 usersDefault={powerLevelUsersDefault}
                 onChange={onPowerChange}
-                disabled={isUpdating}
             />
-            {buttonOrSpinner}
         </div>
     );
 };
@@ -1343,13 +1294,17 @@ const BasicUserInfo: React.FC<{
     }
 
     let memberDetails;
-    if (room && member.roomId) {
-        memberDetails = <PowerLevelSection
-            powerLevels={powerLevels}
-            user={member}
-            room={room}
-            roomPermissions={roomPermissions}
-        />;
+    // hide the Roles section for DMs as it doesn't make sense there
+    if (room && member.roomId && !DMRoomMap.shared().getUserIdForRoomId(member.roomId)) {
+        memberDetails = <div className="mx_UserInfo_container">
+            <h3>{ _t("Role") }</h3>
+            <PowerLevelSection
+                powerLevels={powerLevels}
+                user={member}
+                room={room}
+                roomPermissions={roomPermissions}
+            />
+        </div>;
     }
 
     // only display the devices list if our client supports E2E
@@ -1419,12 +1374,7 @@ const BasicUserInfo: React.FC<{
     );
 
     return <React.Fragment>
-        { memberDetails &&
-        <div className="mx_UserInfo_container mx_UserInfo_separator mx_UserInfo_memberDetailsContainer">
-            <div className="mx_UserInfo_memberDetails">
-                { memberDetails }
-            </div>
-        </div> }
+        { memberDetails }
 
         { securitySection }
         <UserOptionsSection

src/components/views/rooms/EventTile.js

@@ -21,6 +21,7 @@ import ReplyThread from "../elements/ReplyThread";
 import React, {createRef} from 'react';
 import PropTypes from 'prop-types';
 import classNames from "classnames";
+import {EventType} from "matrix-js-sdk/src/@types/event";
 import { _t, _td } from '../../../languageHandler';
 import * as TextForEvent from "../../../TextForEvent";
 import * as sdk from "../../../index";
@@ -646,12 +647,13 @@ export default class EventTile extends React.Component {
 
         // Info messages are basically information about commands processed on a room
         const isBubbleMessage = eventType.startsWith("m.key.verification") ||
-            (eventType === "m.room.message" && msgtype && msgtype.startsWith("m.key.verification")) ||
-            (eventType === "m.room.encryption") ||
+            (eventType === EventType.RoomMessage && msgtype && msgtype.startsWith("m.key.verification")) ||
+            (eventType === EventType.RoomCreate) ||
+            (eventType === EventType.RoomEncryption) ||
             (tileHandler === "messages.MJitsiWidgetEvent");
         let isInfoMessage = (
-            !isBubbleMessage && eventType !== 'm.room.message' &&
-            eventType !== 'm.sticker' && eventType !== 'm.room.create'
+            !isBubbleMessage && eventType !== EventType.RoomMessage &&
+            eventType !== EventType.Sticker && eventType !== EventType.RoomCreate
         );
 
         // If we're showing hidden events in the timeline, we should use the

src/components/views/rooms/NewRoomIntro.tsx

@@ -0,0 +1,135 @@
+/*
+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, {useContext} from "react";
+import {EventType} from "matrix-js-sdk/src/@types/event";
+
+import MatrixClientContext from "../../../contexts/MatrixClientContext";
+import RoomContext from "../../../contexts/RoomContext";
+import DMRoomMap from "../../../utils/DMRoomMap";
+import {_t} from "../../../languageHandler";
+import AccessibleButton from "../elements/AccessibleButton";
+import MiniAvatarUploader, {AVATAR_SIZE} from "../elements/MiniAvatarUploader";
+import RoomAvatar from "../avatars/RoomAvatar";
+import defaultDispatcher from "../../../dispatcher/dispatcher";
+import {ViewUserPayload} from "../../../dispatcher/payloads/ViewUserPayload";
+import {Action} from "../../../dispatcher/actions";
+import dis from "../../../dispatcher/dispatcher";
+
+const NewRoomIntro = () => {
+    const cli = useContext(MatrixClientContext);
+    const {room, roomId} = useContext(RoomContext);
+
+    const dmPartner = DMRoomMap.shared().getUserIdForRoomId(roomId);
+    let body;
+    if (dmPartner) {
+        let caption;
+        if ((room.getJoinedMemberCount() + room.getInvitedMemberCount()) === 2) {
+            caption = _t("Only the two of you are in this conversation, unless either of you invites anyone to join.");
+        }
+
+        const member = room?.getMember(dmPartner);
+        const displayName = member?.rawDisplayName || dmPartner;
+        body = <React.Fragment>
+            <RoomAvatar room={room} width={AVATAR_SIZE} height={AVATAR_SIZE} onClick={() => {
+                defaultDispatcher.dispatch<ViewUserPayload>({
+                    action: Action.ViewUser,
+                    // XXX: We should be using a real member object and not assuming what the receiver wants.
+                    member: member || {userId: dmPartner},
+                });
+            }} />
+
+            <h2>{ room.name }</h2>
+
+            <p>{_t("This is the beginning of your direct message history with <displayName/>.", {}, {
+                displayName: () => <b>{ displayName }</b>,
+            })}</p>
+            { caption && <p>{ caption }</p> }
+        </React.Fragment>;
+    } else {
+        const topic = room.currentState.getStateEvents(EventType.RoomTopic, "")?.getContent()?.topic;
+        const canAddTopic = room.currentState.maySendStateEvent(EventType.RoomTopic, cli.getUserId());
+
+        const onTopicClick = () => {
+            dis.dispatch({
+                action: "open_room_settings",
+                room_id: roomId,
+            }, true);
+            // focus the topic field to help the user find it as it'll gain an outline
+            setImmediate(() => {
+                window.document.getElementById("profileTopic").focus();
+            });
+        };
+
+        let topicText;
+        if (canAddTopic && topic) {
+            topicText = _t("Topic: %(topic)s (<a>edit</a>)", { topic }, {
+                a: sub => <AccessibleButton kind="link" onClick={onTopicClick}>{ sub }</AccessibleButton>,
+            });
+        } else if (topic) {
+            topicText = _t("Topic: %(topic)s ", { topic });
+        } else if (canAddTopic) {
+            topicText = _t("<a>Add a topic</a> to help people know what it is about.", {}, {
+                a: sub => <AccessibleButton kind="link" onClick={onTopicClick}>{ sub }</AccessibleButton>,
+            });
+        }
+
+        const creator = room.currentState.getStateEvents(EventType.RoomCreate, "")?.getSender();
+        const creatorName = room?.getMember(creator)?.rawDisplayName || creator;
+
+        let createdText;
+        if (creator === cli.getUserId()) {
+            createdText = _t("You created this room.");
+        } else {
+            createdText = _t("%(displayName)s created this room.", {
+                displayName: creatorName,
+            });
+        }
+
+        const onInviteClick = () => {
+            dis.dispatch({ action: "view_invite", roomId });
+        };
+
+        const avatarUrl = room.currentState.getStateEvents(EventType.RoomAvatar, "")?.getContent()?.url;
+        body = <React.Fragment>
+            <MiniAvatarUploader
+                hasAvatar={!!avatarUrl}
+                noAvatarLabel={_t("Add a photo, so people can easily spot your room.")}
+                setAvatarUrl={url => cli.sendStateEvent(roomId, EventType.RoomAvatar, { url }, '')}
+            >
+                <RoomAvatar room={room} width={AVATAR_SIZE} height={AVATAR_SIZE} />
+            </MiniAvatarUploader>
+
+            <h2>{ room.name }</h2>
+
+            <p>{createdText} {_t("This is the start of <roomName/>.", {}, {
+                roomName: () => <b>{ room.name }</b>,
+            })}</p>
+            <p>{topicText}</p>
+            <div className="mx_NewRoomIntro_buttons">
+                <AccessibleButton className="mx_NewRoomIntro_inviteButton" kind="primary" onClick={onInviteClick}>
+                    {_t("Invite to this room")}
+                </AccessibleButton>
+            </div>
+        </React.Fragment>;
+    }
+
+    return <div className="mx_NewRoomIntro">
+        { body }
+    </div>;
+};
+
+export default NewRoomIntro;

src/components/views/rooms/RoomList.tsx

@@ -58,6 +58,7 @@ interface IProps {
 
 interface IState {
     sublists: ITagMap;
+    isNameFiltering: boolean;
 }
 
 const TAG_ORDER: TagID[] = [
@@ -183,6 +184,7 @@ export default class RoomList extends React.PureComponent<IProps, IState> {
 
         this.state = {
             sublists: {},
+            isNameFiltering: !!RoomListStore.instance.getFirstNameFilterCondition(),
         };
 
         this.dispatcherRef = defaultDispatcher.register(this.onAction);
@@ -253,7 +255,8 @@ export default class RoomList extends React.PureComponent<IProps, IState> {
             return CustomRoomTagStore.getTags()[t];
         });
 
-        let doUpdate = arrayHasDiff(previousListIds, newListIds);
+        const isNameFiltering = !!RoomListStore.instance.getFirstNameFilterCondition();
+        let doUpdate = this.state.isNameFiltering !== isNameFiltering || arrayHasDiff(previousListIds, newListIds);
         if (!doUpdate) {
             // so we didn't have the visible sublists change, but did the contents of those
             // sublists change significantly enough to break the sticky headers? Probably, so
@@ -275,14 +278,20 @@ export default class RoomList extends React.PureComponent<IProps, IState> {
             const newSublists = objectWithOnly(newLists, newListIds);
             const sublists = objectShallowClone(newSublists, (k, v) => arrayFastClone(v));
 
-            this.setState({sublists}, () => {
+            this.setState({sublists, isNameFiltering}, () => {
                 this.props.onResize();
             });
         }
     };
 
+    private onStartChat = () => {
+        const initialText = RoomListStore.instance.getFirstNameFilterCondition()?.search;
+        dis.dispatch({ action: "view_create_chat", initialText });
+    };
+
     private onExplore = () => {
-        dis.fire(Action.ViewRoomDirectory);
+        const initialText = RoomListStore.instance.getFirstNameFilterCondition()?.search;
+        dis.dispatch({ action: Action.ViewRoomDirectory, initialText });
     };
 
     private renderCommunityInvites(): TemporaryTile[] {
@@ -332,7 +341,9 @@ export default class RoomList extends React.PureComponent<IProps, IState> {
             return p;
         }, [] as TagID[]);
 
-        const showSkeleton = tagOrder.every(tag => !this.state.sublists[tag]?.length);
+        // show a skeleton UI if the user is in no rooms and they are not filtering
+        const showSkeleton = !this.state.isNameFiltering &&
+            Object.values(RoomListStore.instance.unfilteredLists).every(list => !list?.length);
 
         for (const orderedTagId of tagOrder) {
             const orderedRooms = this.state.sublists[orderedTagId] || [];
@@ -369,10 +380,21 @@ export default class RoomList extends React.PureComponent<IProps, IState> {
     public render() {
         let explorePrompt: JSX.Element;
         if (!this.props.isMinimized) {
-            if (RoomListStore.instance.getFirstNameFilterCondition()) {
+            if (this.state.isNameFiltering) {
                 explorePrompt = <div className="mx_RoomList_explorePrompt">
                     <div>{_t("Can't see what you’re looking for?")}</div>
-                    <AccessibleButton kind="link" onClick={this.onExplore}>
+                    <AccessibleButton
+                        className="mx_RoomList_explorePrompt_startChat"
+                        kind="link"
+                        onClick={this.onStartChat}
+                    >
+                        {_t("Start a new chat")}
+                    </AccessibleButton>
+                    <AccessibleButton
+                        className="mx_RoomList_explorePrompt_explore"
+                        kind="link"
+                        onClick={this.onExplore}
+                    >
                         {_t("Explore all public rooms")}
                     </AccessibleButton>
                 </div>;
@@ -384,7 +406,18 @@ export default class RoomList extends React.PureComponent<IProps, IState> {
                 if (unfilteredRooms.length < 1 && unfilteredHistorical < 1) {
                     explorePrompt = <div className="mx_RoomList_explorePrompt">
                         <div>{_t("Use the + to make a new room or explore existing ones below")}</div>
-                        <AccessibleButton kind="link" onClick={this.onExplore}>
+                        <AccessibleButton
+                            className="mx_RoomList_explorePrompt_startChat"
+                            kind="link"
+                            onClick={this.onStartChat}
+                        >
+                            {_t("Start a new chat")}
+                        </AccessibleButton>
+                        <AccessibleButton
+                            className="mx_RoomList_explorePrompt_explore"
+                            kind="link"
+                            onClick={this.onExplore}
+                        >
                             {_t("Explore all public rooms")}
                         </AccessibleButton>
                     </div>;

src/components/views/rooms/SendMessageComposer.js

@@ -308,6 +308,9 @@ export default class SendMessageComposer extends React.Component {
             const startTime = CountlyAnalytics.getTimestamp();
             const {roomId} = this.props.room;
             const content = createMessageContent(this.model, this.props.permalinkCreator, replyToEvent);
+            // don't bother sending an empty message
+            if (!content.body.trim()) return;
+
             const prom = this.context.sendMessage(roomId, content);
             if (replyToEvent) {
                 // Clear reply_to_event as we put the message into the queue

src/components/views/settings/EventIndexPanel.js

@@ -129,11 +129,13 @@ export default class EventIndexPanel extends React.Component {
             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.")}
+                        {_t("Securely cache encrypted messages locally for them " +
+                             "to appear in search results, using %(size)s to store messages from %(count)s rooms.",
+                            {
+                                size: formatBytes(this.state.eventIndexSize, 0),
+                                count: formatCountLong(this.state.roomCount),
+                            },
+                        )}
                     </div>
                     <div>
                         <AccessibleButton kind="primary" onClick={this._onManage}>