Add unread indicator to the timelineCard header icon

res/css/structures/_RightPanel.scss

@@ -103,44 +103,61 @@ limitations under the License.
     mask-position: center;
 }
 
-$dot-size: 8px;
+$dot-size: 7px;
 $pulse-color: $alert;
 
 .mx_RightPanel_pinnedMessagesButton {
     &::before {
         mask-image: url('$(res)/img/element-icons/room/pin.svg');
         mask-position: center;
     }
+}
+.mx_RightPanel_headerButton_unreadIndicator_bg {
+    position: absolute;
+    right: 0;
+    top: 0;
+    margin: 4px;
+    width: $dot-size;
+    height: $dot-size;
+    border-radius: 50%;
+    transform: scale(1.6);
+    transform-origin: center center;
+    background: rgba($background, 1);
+}
 
-    .mx_RightPanel_pinnedMessagesButton_unreadIndicator {
+.mx_RightPanel_headerButton_unreadIndicator {
+    position: absolute;
+    right: 0;
+    top: 0;
+    margin: 4px;
+    width: $dot-size;
+    height: $dot-size;
+    border-radius: 50%;
+    transform: scale(1);
+    background: rgba($pulse-color, 1);
+    box-shadow: 0 0 0 0 rgba($pulse-color, 1);
+    animation: mx_RightPanel_indicator_pulse 2s infinite;
+    animation-iteration-count: 1;
+
+    &.mx_Indicator_gray {
+        background: rgba($input-darker-fg-color, 1);
+        box-shadow: rgba($input-darker-fg-color, 1);
+    }
+
+    &::after {
+        content: "";
         position: absolute;
-        right: 0;
+        width: inherit;
+        height: inherit;
         top: 0;
-        margin: 4px;
-        width: $dot-size;
-        height: $dot-size;
-        border-radius: 50%;
+        left: 0;
         transform: scale(1);
-        background: rgba($pulse-color, 1);
-        box-shadow: 0 0 0 0 rgba($pulse-color, 1);
-        animation: mx_RightPanel_indicator_pulse 2s infinite;
-        animation-iteration-count: 1;
-
-        &::after {
-            content: "";
-            position: absolute;
-            width: inherit;
-            height: inherit;
-            top: 0;
-            left: 0;
-            transform: scale(1);
-            transform-origin: center center;
-            animation-name: mx_RightPanel_indicator_pulse_shadow;
-            animation-duration: inherit;
-            animation-iteration-count: inherit;
-            border-radius: 50%;
-            background: rgba($pulse-color, 1);
-        }
+        transform-origin: center center;
+        animation-name: mx_RightPanel_indicator_pulse_shadow;
+        animation-duration: inherit;
+        animation-iteration-count: inherit;
+        border-radius: 50%;
+        background: inherit;
     }
 }
 

src/components/views/right_panel/RoomHeaderButtons.tsx

@@ -34,6 +34,8 @@ import { useReadPinnedEvents, usePinnedEvents } from './PinnedMessagesCard';
 import { dispatchShowThreadsPanelEvent } from "../../../dispatcher/dispatch-actions/threads";
 import SettingsStore from "../../../settings/SettingsStore";
 import dis from "../../../dispatcher/dispatcher";
+import { RoomNotificationStateStore } from "../../../stores/notifications/RoomNotificationStateStore";
+import { NotificationColor } from "../../../stores/notifications/NotificationColor";
 
 const ROOM_INFO_PHASES = [
     RightPanelPhases.RoomSummary,
@@ -45,15 +47,32 @@ const ROOM_INFO_PHASES = [
     RightPanelPhases.Room3pidMemberInfo,
 ];
 
-const PinnedMessagesHeaderButton = ({ room, isHighlighted, onClick }) => {
+interface IUnreadIndicatorProps {
+    className: string;
+}
+
+const UnreadIndicator = ({ className }: IUnreadIndicatorProps) => {
+    return <React.Fragment>
+        <div className="mx_RightPanel_headerButton_unreadIndicator_bg" />
+        <div className={className} />
+    </React.Fragment>;
+};
+
+interface IHeaderButtonProps {
+    room: Room;
+    isHighlighted: boolean;
+    onClick: () => void;
+}
+
+const PinnedMessagesHeaderButton = ({ room, isHighlighted, onClick }: IHeaderButtonProps) => {
     const pinningEnabled = useSettingValue("feature_pinning");
     const pinnedEvents = usePinnedEvents(pinningEnabled && room);
     const readPinnedEvents = useReadPinnedEvents(pinningEnabled && room);
     if (!pinningEnabled) return null;
 
     let unreadIndicator;
     if (pinnedEvents.some(id => !readPinnedEvents.has(id))) {
-        unreadIndicator = <div className="mx_RightPanel_pinnedMessagesButton_unreadIndicator" />;
+        unreadIndicator = <UnreadIndicator className="mx_RightPanel_headerButton_unreadIndicator" />;
     }
 
     return <HeaderButton
@@ -67,16 +86,30 @@ const PinnedMessagesHeaderButton = ({ room, isHighlighted, onClick }) => {
     </HeaderButton>;
 };
 
-const TimelineCardHeaderButton = ({ room, isHighlighted, onClick }) => {
+const TimelineCardHeaderButton = ({ room, isHighlighted, onClick }: IHeaderButtonProps) => {
     if (!SettingsStore.getValue("feature_maximised_widgets")) return null;
-
+    let unreadIndicator;
+    switch (RoomNotificationStateStore.instance.getRoomState(room).color) {
+        case NotificationColor.Grey:
+            unreadIndicator =
+                <UnreadIndicator className="mx_RightPanel_headerButton_unreadIndicator mx_Indicator_gray" />;
+            break;
+        case NotificationColor.Red:
+            unreadIndicator =
+                <UnreadIndicator className="mx_RightPanel_headerButton_unreadIndicator" />;
+            break;
+        default:
+            break;
+    }
     return <HeaderButton
         name="timelineCardButton"
         title={_t("Chat")}
         isHighlighted={isHighlighted}
         onClick={onClick}
         analytics={["Right Panel", "Timeline Panel Button", "click"]}
-    />;
+    >
+        { unreadIndicator }
+    </HeaderButton>;
 };
 
 interface IProps {

src/components/views/rooms/RoomHeader.tsx

@@ -39,6 +39,8 @@ import { SearchScope } from './SearchBar';
 import { ContextMenuTooltipButton } from '../../structures/ContextMenu';
 import RoomContextMenu from "../context_menus/RoomContextMenu";
 import { contextMenuBelow } from './RoomTile';
+import { RoomNotificationStateStore } from '../../../stores/notifications/RoomNotificationStateStore';
+import { NOTIFICATION_STATE_UPDATE } from '../../../stores/notifications/NotificationState';
 import { RightPanelPhases } from '../../../stores/RightPanelStorePhases';
 
 export interface ISearchInfo {
@@ -75,7 +77,8 @@ export default class RoomHeader extends React.Component<IProps, IState> {
 
     constructor(props, context) {
         super(props, context);
-
+        const notiStore = RoomNotificationStateStore.instance.getRoomState(props.room);
+        notiStore.on(NOTIFICATION_STATE_UPDATE, this.onNotificationUpdate);
         this.state = {};
     }
 
@@ -89,6 +92,8 @@ export default class RoomHeader extends React.Component<IProps, IState> {
         if (cli) {
             cli.removeListener("RoomState.events", this.onRoomStateEvents);
         }
+        const notiStore = RoomNotificationStateStore.instance.getRoomState(this.props.room);
+        notiStore.removeListener(NOTIFICATION_STATE_UPDATE, this.onNotificationUpdate);
     }
 
     private onRoomStateEvents = (event: MatrixEvent, state: RoomState) => {
@@ -100,6 +105,10 @@ export default class RoomHeader extends React.Component<IProps, IState> {
         this.rateLimitedUpdate();
     };
 
+    private onNotificationUpdate = () => {
+        this.forceUpdate();
+    };
+
     private rateLimitedUpdate = throttle(() => {
         this.forceUpdate();
     }, 500, { leading: true, trailing: true });