[Backport staging] Update Voice Broadcast buffering style (#9660)

Co-authored-by: Michael Weimann <michaelw@matrix.org>

res/css/voice-broadcast/atoms/_VoiceBroadcastHeader.pcss

@@ -40,8 +40,9 @@ limitations under the License.
     display: flex;
     gap: $spacing-4;
 
-    i {
-        flex-shrink: 0;
+    .mx_Spinner {
+        flex: 0 0 14px;
+        padding: 1px;
     }
 
     span {

src/i18n/strings/en_EN.json

@@ -657,6 +657,7 @@
     "Change input device": "Change input device",
     "Live": "Live",
     "Voice broadcast": "Voice broadcast",
+    "Buffering…": "Buffering…",
     "Cannot reach homeserver": "Cannot reach homeserver",
     "Ensure you have a stable internet connection, or get in touch with the server admin": "Ensure you have a stable internet connection, or get in touch with the server admin",
     "Your %(brand)s is misconfigured": "Your %(brand)s is misconfigured",

src/voice-broadcast/components/atoms/VoiceBroadcastHeader.tsx

@@ -25,6 +25,7 @@ import AccessibleButton from "../../../components/views/elements/AccessibleButto
 import { Icon as XIcon } from "../../../../res/img/element-icons/cancel-rounded.svg";
 import Clock from "../../../components/views/audio_messages/Clock";
 import { formatTimeLeft } from "../../../DateUtils";
+import Spinner from "../../../components/views/elements/Spinner";
 
 interface VoiceBroadcastHeaderProps {
     live?: VoiceBroadcastLiveness;
@@ -33,6 +34,7 @@ interface VoiceBroadcastHeaderProps {
     room: Room;
     microphoneLabel?: string;
     showBroadcast?: boolean;
+    showBuffering?: boolean;
     timeLeft?: number;
     showClose?: boolean;
 }
@@ -44,47 +46,55 @@ export const VoiceBroadcastHeader: React.FC<VoiceBroadcastHeaderProps> = ({
     room,
     microphoneLabel,
     showBroadcast = false,
+    showBuffering = false,
     showClose = false,
     timeLeft,
 }) => {
-    const broadcast = showBroadcast
-        ? <div className="mx_VoiceBroadcastHeader_line">
+    const broadcast = showBroadcast && (
+        <div className="mx_VoiceBroadcastHeader_line">
             <LiveIcon className="mx_Icon mx_Icon_16" />
             { _t("Voice broadcast") }
         </div>
-        : null;
+    );
 
-    const liveBadge = live === "not-live"
-        ? null
-        : <LiveBadge grey={live === "grey"} />;
+    const liveBadge = live !== "not-live" && (
+        <LiveBadge grey={live === "grey"} />
+    );
 
-    const closeButton = showClose
-        ? <AccessibleButton onClick={onCloseClick}>
+    const closeButton = showClose && (
+        <AccessibleButton onClick={onCloseClick}>
             <XIcon className="mx_Icon mx_Icon_16" />
         </AccessibleButton>
-        : null;
+    );
 
-    const timeLeftLine = timeLeft
-        ? <div className="mx_VoiceBroadcastHeader_line">
+    const timeLeftLine = timeLeft && (
+        <div className="mx_VoiceBroadcastHeader_line">
             <TimerIcon className="mx_Icon mx_Icon_16" />
             <Clock formatFn={formatTimeLeft} seconds={timeLeft} />
         </div>
-        : null;
+    );
+
+    const buffering = showBuffering && (
+        <div className="mx_VoiceBroadcastHeader_line">
+            <Spinner w={14} h={14} />
+            { _t("Buffering…") }
+        </div>
+    );
 
     const microphoneLineClasses = classNames({
         mx_VoiceBroadcastHeader_line: true,
         ["mx_VoiceBroadcastHeader_mic--clickable"]: onMicrophoneLineClick,
     });
 
-    const microphoneLine = microphoneLabel
-        ? <div
+    const microphoneLine = microphoneLabel && (
+        <div
             className={microphoneLineClasses}
             onClick={onMicrophoneLineClick}
         >
             <MicrophoneIcon className="mx_Icon mx_Icon_16" />
             <span>{ microphoneLabel }</span>
         </div>
-        : null;
+    );
 
     return <div className="mx_VoiceBroadcastHeader">
         <RoomAvatar room={room} width={32} height={32} />
@@ -95,6 +105,7 @@ export const VoiceBroadcastHeader: React.FC<VoiceBroadcastHeaderProps> = ({
             { microphoneLine }
             { timeLeftLine }
             { broadcast }
+            { buffering }
         </div>
         { liveBadge }
         { closeButton }

src/voice-broadcast/components/molecules/VoiceBroadcastPlaybackBody.tsx

@@ -23,7 +23,6 @@ import {
     VoiceBroadcastPlayback,
     VoiceBroadcastPlaybackState,
 } from "../..";
-import Spinner from "../../../components/views/elements/Spinner";
 import { useVoiceBroadcastPlayback } from "../../hooks/useVoiceBroadcastPlayback";
 import { Icon as PlayIcon } from "../../../../res/img/element-icons/play.svg";
 import { Icon as PauseIcon } from "../../../../res/img/element-icons/pause.svg";
@@ -55,11 +54,6 @@ export const VoiceBroadcastPlaybackBody: React.FC<VoiceBroadcastPlaybackBodyProp
         toggle,
     } = useVoiceBroadcastPlayback(playback);
 
-    let control: React.ReactNode;
-
-    if (playbackState === VoiceBroadcastPlaybackState.Buffering) {
-        control = <Spinner />;
-    } else {
     let controlIcon: React.FC<React.SVGProps<SVGSVGElement>>;
     let controlLabel: string;
     let className = "";
@@ -75,19 +69,19 @@ export const VoiceBroadcastPlaybackBody: React.FC<VoiceBroadcastPlaybackBodyProp
             className = "mx_VoiceBroadcastControl-play";
             controlLabel = _t("resume voice broadcast");
             break;
+        case VoiceBroadcastPlaybackState.Buffering:
         case VoiceBroadcastPlaybackState.Playing:
             controlIcon = PauseIcon;
             controlLabel = _t("pause voice broadcast");
             break;
     }
 
-        control = <VoiceBroadcastControl
+    const control = <VoiceBroadcastControl
         className={className}
         label={controlLabel}
         icon={controlIcon}
         onClick={toggle}
     />;
-    }
 
     let seekBackwardButton: ReactElement | null = null;
     let seekForwardButton: ReactElement | null = null;
@@ -125,7 +119,8 @@ export const VoiceBroadcastPlaybackBody: React.FC<VoiceBroadcastPlaybackBodyProp
                 live={liveness}
                 microphoneLabel={sender?.name}
                 room={room}
-                showBroadcast={true}
+                showBroadcast={playbackState !== VoiceBroadcastPlaybackState.Buffering}
+                showBuffering={playbackState === VoiceBroadcastPlaybackState.Buffering}
             />
             <div className="mx_VoiceBroadcastBody_controls">
                 { seekBackwardButton }

src/voice-broadcast/hooks/useVoiceBroadcastPlayback.ts

@@ -27,6 +27,13 @@ import {
 export const useVoiceBroadcastPlayback = (playback: VoiceBroadcastPlayback) => {
     const client = MatrixClientPeg.get();
     const room = client.getRoom(playback.infoEvent.getRoomId());
+
+    if (!room) {
+        throw new Error(
+            `Voice Broadcast room not found (event ${playback.infoEvent.getId()})`,
+        );
+    }
+
     const playbackToggle = () => {
         playback.toggle();
     };

test/voice-broadcast/components/atoms/VoiceBroadcastHeader-test.tsx

@@ -35,12 +35,17 @@ describe("VoiceBroadcastHeader", () => {
     const sender = new RoomMember(roomId, userId);
     let container: Container;
 
-    const renderHeader = (live: VoiceBroadcastLiveness, showBroadcast: boolean = undefined): RenderResult => {
+    const renderHeader = (
+        live: VoiceBroadcastLiveness,
+        showBroadcast?: boolean,
+        buffering?: boolean,
+    ): RenderResult => {
         return render(<VoiceBroadcastHeader
             live={live}
             microphoneLabel={sender.name}
             room={room}
             showBroadcast={showBroadcast}
+            showBuffering={buffering}
         />);
     };
 
@@ -51,6 +56,16 @@ describe("VoiceBroadcastHeader", () => {
     });
 
     describe("when rendering a live broadcast header with broadcast info", () => {
+        beforeEach(() => {
+            container = renderHeader("live", true, true).container;
+        });
+
+        it("should render the header with a red live badge", () => {
+            expect(container).toMatchSnapshot();
+        });
+    });
+
+    describe("when rendering a buffering live broadcast header with broadcast info", () => {
         beforeEach(() => {
             container = renderHeader("live", true).container;
         });

test/voice-broadcast/components/atoms/__snapshots__/VoiceBroadcastHeader-test.tsx.snap

@@ -1,5 +1,55 @@
 // Jest Snapshot v1, https://goo.gl/fbAQLP
 
+exports[`VoiceBroadcastHeader when rendering a buffering live broadcast header with broadcast info should render the header with a red live badge 1`] = `
+<div>
+  <div
+    class="mx_VoiceBroadcastHeader"
+  >
+    <div
+      data-testid="room-avatar"
+    >
+      room avatar: 
+      !room:example.com
+    </div>
+    <div
+      class="mx_VoiceBroadcastHeader_content"
+    >
+      <div
+        class="mx_VoiceBroadcastHeader_room"
+      >
+        !room:example.com
+      </div>
+      <div
+        class="mx_VoiceBroadcastHeader_line"
+      >
+        <div
+          class="mx_Icon mx_Icon_16"
+        />
+        <span>
+          test user
+        </span>
+      </div>
+      <div
+        class="mx_VoiceBroadcastHeader_line"
+      >
+        <div
+          class="mx_Icon mx_Icon_16"
+        />
+        Voice broadcast
+      </div>
+    </div>
+    <div
+      class="mx_LiveBadge"
+    >
+      <div
+        class="mx_Icon mx_Icon_16"
+      />
+      Live
+    </div>
+  </div>
+</div>
+`;
+
 exports[`VoiceBroadcastHeader when rendering a live (grey) broadcast header with broadcast info should render the header with a grey live badge 1`] = `
 <div>
   <div
@@ -87,6 +137,22 @@ exports[`VoiceBroadcastHeader when rendering a live broadcast header with broadc
         />
         Voice broadcast
       </div>
+      <div
+        class="mx_VoiceBroadcastHeader_line"
+      >
+        <div
+          class="mx_Spinner"
+        >
+          <div
+            aria-label="Loading..."
+            class="mx_Spinner_icon"
+            data-testid="spinner"
+            role="progressbar"
+            style="width: 14px; height: 14px;"
+          />
+        </div>
+        Buffering…
+      </div>
     </div>
     <div
       class="mx_LiveBadge"

test/voice-broadcast/components/molecules/__snapshots__/VoiceBroadcastPlaybackBody-test.tsx.snap

@@ -242,9 +242,17 @@ exports[`VoiceBroadcastPlaybackBody when rendering a buffering voice broadcast s
           class="mx_VoiceBroadcastHeader_line"
         >
           <div
-            class="mx_Icon mx_Icon_16"
+            class="mx_Spinner"
+          >
+            <div
+              aria-label="Loading..."
+              class="mx_Spinner_icon"
+              data-testid="spinner"
+              role="progressbar"
+              style="width: 14px; height: 14px;"
             />
-          Voice broadcast
+          </div>
+          Buffering…
         </div>
       </div>
       <div
@@ -270,14 +278,13 @@ exports[`VoiceBroadcastPlaybackBody when rendering a buffering voice broadcast s
         />
       </div>
       <div
-        class="mx_Spinner"
+        aria-label="pause voice broadcast"
+        class="mx_AccessibleButton mx_VoiceBroadcastControl"
+        role="button"
+        tabindex="0"
       >
         <div
-          aria-label="Loading..."
-          class="mx_Spinner_icon"
-          data-testid="spinner"
-          role="progressbar"
-          style="width: 32px; height: 32px;"
+          class="mx_Icon mx_Icon_16"
         />
       </div>
       <div