Fix Timeline to not peek group call for direct calls

ts/components/conversation/Timeline.stories.tsx

@@ -463,6 +463,7 @@ const useProps = (overrideProps: Partial<PropsType> = {}): PropsType => ({
     overrideProps.invitedContactsForNewlyCreatedGroup || [],
   warning: overrideProps.warning,
   hasContactSpoofingReview: false,
+  conversationType: 'direct',
 
   id: uuid(),
   renderItem,

ts/components/conversation/Timeline.tsx

@@ -88,6 +88,7 @@ type PropsHousekeepingType = {
   isSomeoneTyping: boolean;
   unreadCount?: number;
   unreadMentionsCount?: number;
+  conversationType: 'direct' | 'group';
 
   targetedMessageId?: string;
   invitedContactsForNewlyCreatedGroup: Array<ConversationType>;
@@ -497,21 +498,8 @@ export class Timeline extends React.Component<
     }
   }, 500);
 
-  public override componentDidMount(): void {
-    const containerEl = this.containerRef.current;
-    const messagesEl = this.messagesRef.current;
-    const { isConversationSelected } = this.props;
-    strictAssert(
-      // We don't render anything unless the conversation is selected
-      (containerEl && messagesEl) || !isConversationSelected,
-      '<Timeline> mounted without some refs'
-    );
-
-    this.updateIntersectionObserver();
-
-    window.SignalContext.activeWindowService.registerForActive(
-      this.markNewestBottomVisibleMessageRead
-    );
+  private setupGroupCallPeekTimeouts(): void {
+    this.cleanupGroupCallPeekTimeouts();
 
     this.delayedPeekTimeout = setTimeout(() => {
       const { id, peekGroupCallForTheFirstTime } = this.props;
@@ -525,19 +513,46 @@ export class Timeline extends React.Component<
     }, MINUTE);
   }
 
-  public override componentWillUnmount(): void {
+  private cleanupGroupCallPeekTimeouts(): void {
     const { delayedPeekTimeout, peekInterval } = this;
 
+    clearTimeoutIfNecessary(delayedPeekTimeout);
+    this.delayedPeekTimeout = undefined;
+
+    if (peekInterval) {
+      clearInterval(peekInterval);
+      this.peekInterval = undefined;
+    }
+  }
+
+  public override componentDidMount(): void {
+    const containerEl = this.containerRef.current;
+    const messagesEl = this.messagesRef.current;
+    const { conversationType, isConversationSelected } = this.props;
+    strictAssert(
+      // We don't render anything unless the conversation is selected
+      (containerEl && messagesEl) || !isConversationSelected,
+      '<Timeline> mounted without some refs'
+    );
+
+    this.updateIntersectionObserver();
+
+    window.SignalContext.activeWindowService.registerForActive(
+      this.markNewestBottomVisibleMessageRead
+    );
+
+    if (conversationType === 'group') {
+      this.setupGroupCallPeekTimeouts();
+    }
+  }
+
+  public override componentWillUnmount(): void {
     window.SignalContext.activeWindowService.unregisterForActive(
       this.markNewestBottomVisibleMessageRead
     );
 
     this.intersectionObserver?.disconnect();
-
-    clearTimeoutIfNecessary(delayedPeekTimeout);
-    if (peekInterval) {
-      clearInterval(peekInterval);
-    }
+    this.cleanupGroupCallPeekTimeouts();
   }
 
   public override getSnapshotBeforeUpdate(
@@ -588,11 +603,13 @@ export class Timeline extends React.Component<
     snapshot: Readonly<SnapshotType>
   ): void {
     const {
+      conversationType: previousConversationType,
       items: oldItems,
       messageChangeCounter: previousMessageChangeCounter,
       messageLoadingState: previousMessageLoadingState,
     } = prevProps;
     const {
+      conversationType,
       discardMessages,
       id,
       items: newItems,
@@ -666,6 +683,13 @@ export class Timeline extends React.Component<
     if (previousMessageChangeCounter !== messageChangeCounter) {
       this.markNewestBottomVisibleMessageRead();
     }
+
+    if (previousConversationType !== conversationType) {
+      this.cleanupGroupCallPeekTimeouts();
+      if (conversationType === 'group') {
+        this.setupGroupCallPeekTimeouts();
+      }
+    }
   }
 
   private handleBlur = (event: React.FocusEvent): void => {

ts/state/smart/Timeline.tsx

@@ -210,6 +210,7 @@ export const SmartTimeline = memo(function SmartTimeline({
     typingContactIdTimestamps = {},
     unreadCount,
     unreadMentionsCount,
+    type: conversationType,
   } = conversation ?? {};
   const {
     haveNewest,
@@ -240,6 +241,7 @@ export const SmartTimeline = memo(function SmartTimeline({
       }
       clearTargetedMessage={clearTargetedMessage}
       closeContactSpoofingReview={closeContactSpoofingReview}
+      conversationType={conversationType}
       discardMessages={discardMessages}
       getPreferredBadge={getPreferredBadge}
       getTimestampForMessage={getTimestampForMessage}

ts/util/clearTimeoutIfNecessary.ts

@@ -1,6 +1,10 @@
 // Copyright 2022 Signal Messenger, LLC
 // SPDX-License-Identifier: AGPL-3.0-only
 
+/**
+ * Calls clearTimeout on a timeout if it is defined.
+ * Note: Do not use with intervals (e.g. setInterval). Results may be unexpected.
+ * */
 export function clearTimeoutIfNecessary(
   timeout: undefined | null | ReturnType<typeof setTimeout>
 ): void {