Apply strictNullChecks to src/components/views/context_menus/*

src/components/views/context_menus/DeviceContextMenu.tsx

@@ -54,7 +54,7 @@ const DeviceContextMenuSection: React.FC<IDeviceContextMenuSectionProps> = ({ de
 
     useEffect(() => {
         const getDevices = async (): Promise<void> => {
-            return setDevices((await MediaDeviceHandler.getDevices())[deviceKind]);
+            return setDevices((await MediaDeviceHandler.getDevices())?.[deviceKind] ?? []);
         };
         getDevices();
     }, [deviceKind]);

src/components/views/context_menus/KebabContextMenu.tsx

@@ -48,7 +48,7 @@ export const KebabContextMenu: React.FC<KebabContextMenuProps> = ({ options, tit
                     compact
                     rightAligned
                     closeOnInteraction
-                    {...contextMenuBelow(button.current.getBoundingClientRect())}
+                    {...contextMenuBelow(button.current!.getBoundingClientRect())}
                 >
                     <IconizedContextMenuOptionList>{options}</IconizedContextMenuOptionList>
                 </IconizedContextMenu>

src/components/views/context_menus/MessageContextMenu.tsx

@@ -73,7 +73,7 @@ const ReplyInThreadButton: React.FC<IReplyInThreadButton> = ({ mxEvent, closeMen
         if (mxEvent.getThread() && !mxEvent.isThreadRoot) {
             dis.dispatch<ShowThreadPayload>({
                 action: Action.ShowThread,
-                rootEvent: mxEvent.getThread().rootEvent,
+                rootEvent: mxEvent.getThread()!.rootEvent!,
                 initialEvent: mxEvent,
                 scroll_into_view: true,
                 highlighted: true,
@@ -163,12 +163,12 @@ export default class MessageContextMenu extends React.Component<IProps, IState>
         // to obliterate the room - https://github.com/matrix-org/synapse/issues/4042
         // Similarly for encryption events, since redacting them "breaks everything"
         const canRedact =
-            room.currentState.maySendRedactionForEvent(this.props.mxEvent, cli.credentials.userId) &&
+            !!room?.currentState.maySendRedactionForEvent(this.props.mxEvent, cli.getSafeUserId()) &&
             this.props.mxEvent.getType() !== EventType.RoomServerAcl &&
             this.props.mxEvent.getType() !== EventType.RoomEncryption;
 
         let canPin =
-            room.currentState.mayClientSendStateEvent(EventType.RoomPinnedEvents, cli) &&
+            !!room?.currentState.mayClientSendStateEvent(EventType.RoomPinnedEvents, cli) &&
             canPinEvent(this.props.mxEvent);
 
         // HACK: Intentionally say we can't pin if the user doesn't want to use the functionality
@@ -249,9 +249,10 @@ export default class MessageContextMenu extends React.Component<IProps, IState>
     private onPinClick = (): void => {
         const cli = MatrixClientPeg.get();
         const room = cli.getRoom(this.props.mxEvent.getRoomId());
+        if (!room) return;
         const eventId = this.props.mxEvent.getId();
 
-        const pinnedIds = room?.currentState?.getStateEvents(EventType.RoomPinnedEvents, "")?.getContent().pinned || [];
+        const pinnedIds = room.currentState?.getStateEvents(EventType.RoomPinnedEvents, "")?.getContent().pinned || [];
 
         if (pinnedIds.includes(eventId)) {
             pinnedIds.splice(pinnedIds.indexOf(eventId), 1);
@@ -261,7 +262,7 @@ export default class MessageContextMenu extends React.Component<IProps, IState>
                 event_ids: [...(room.getAccountData(ReadPinsEventId)?.getContent()?.event_ids || []), eventId],
             });
         }
-        cli.sendStateEvent(this.props.mxEvent.getRoomId(), EventType.RoomPinnedEvents, { pinned: pinnedIds }, "");
+        cli.sendStateEvent(room.roomId, EventType.RoomPinnedEvents, { pinned: pinnedIds }, "");
         this.closeMenu();
     };
 
@@ -294,12 +295,13 @@ export default class MessageContextMenu extends React.Component<IProps, IState>
 
     private onCopyLinkClick = (e: ButtonEvent): void => {
         e.preventDefault(); // So that we don't open the permalink
+        if (!this.props.link) return;
         copyPlaintext(this.props.link);
         this.closeMenu();
     };
 
     private onCollapseReplyChainClick = (): void => {
-        this.props.collapseReplyChain();
+        this.props.collapseReplyChain?.();
         this.closeMenu();
     };
 
@@ -349,10 +351,12 @@ export default class MessageContextMenu extends React.Component<IProps, IState>
         const cli = MatrixClientPeg.get();
         const room = cli.getRoom(this.props.mxEvent.getRoomId());
         const eventId = this.props.mxEvent.getId();
-        return room.getPendingEvents().filter((e) => {
-            const relation = e.getRelation();
-            return relation?.rel_type === RelationType.Annotation && relation.event_id === eventId && filter(e);
-        });
+        return (
+            room?.getPendingEvents().filter((e) => {
+                const relation = e.getRelation();
+                return relation?.rel_type === RelationType.Annotation && relation.event_id === eventId && filter(e);
+            }) ?? []
+        );
     }
 
     private getUnsentReactions(): MatrixEvent[] {
@@ -380,7 +384,7 @@ export default class MessageContextMenu extends React.Component<IProps, IState>
         const eventStatus = mxEvent.status;
         const unsentReactionsCount = this.getUnsentReactions().length;
         const contentActionable = isContentActionable(mxEvent);
-        const permalink = this.props.permalinkCreator?.forEvent(this.props.mxEvent.getId());
+        const permalink = this.props.permalinkCreator?.forEvent(this.props.mxEvent.getId()!);
         // status is SENT before remote-echo, null after
         const isSent = !eventStatus || eventStatus === EventStatus.SENT;
         const { timelineRenderingType, canReact, canSendMessages } = this.context;

src/components/views/context_menus/RoomContextMenu.tsx

@@ -399,7 +399,7 @@ const RoomContextMenu: React.FC<IProps> = ({ room, onFinished, ...props }) => {
                             Modal.createDialog(
                                 DevtoolsDialog,
                                 {
-                                    roomId: SdkContextClass.instance.roomViewStore.getRoomId(),
+                                    roomId: room.roomId,
                                 },
                                 "mx_DevtoolsDialog_wrapper",
                             );

src/components/views/context_menus/ThreadListContextMenu.tsx

@@ -72,7 +72,7 @@ const ThreadListContextMenu: React.FC<ThreadListContextMenuProps> = ({
             if (permalinkCreator) {
                 evt?.preventDefault();
                 evt?.stopPropagation();
-                const matrixToUrl = permalinkCreator.forEvent(mxEvent.getId());
+                const matrixToUrl = permalinkCreator.forEvent(mxEvent.getId()!);
                 await copyPlaintext(matrixToUrl);
                 closeThreadOptions();
             }
@@ -84,9 +84,8 @@ const ThreadListContextMenu: React.FC<ThreadListContextMenuProps> = ({
         onMenuToggle?.(menuDisplayed);
     }, [menuDisplayed, onMenuToggle]);
 
-    const isMainSplitTimelineShown = !WidgetLayoutStore.instance.hasMaximisedWidget(
-        MatrixClientPeg.get().getRoom(mxEvent.getRoomId()),
-    );
+    const room = MatrixClientPeg.get().getRoom(mxEvent.getRoomId());
+    const isMainSplitTimelineShown = !!room && !WidgetLayoutStore.instance.hasMaximisedWidget(room);
     return (
         <React.Fragment>
             <ContextMenuTooltipButton
@@ -104,7 +103,7 @@ const ThreadListContextMenu: React.FC<ThreadListContextMenuProps> = ({
                     className="mx_RoomTile_contextMenu"
                     compact
                     rightAligned
-                    {...contextMenuBelow(button.current.getBoundingClientRect())}
+                    {...contextMenuBelow(button.current!.getBoundingClientRect())}
                 >
                     <IconizedContextMenuOptionList>
                         {isMainSplitTimelineShown && (

src/components/views/context_menus/WidgetContextMenu.tsx

@@ -63,8 +63,8 @@ export const WidgetContextMenu: React.FC<IProps> = ({
     const widgetMessaging = WidgetMessagingStore.instance.getMessagingForUid(WidgetUtils.getWidgetUid(app));
     const canModify = userWidget || WidgetUtils.canUserModifyWidgets(roomId);
 
-    let streamAudioStreamButton;
-    if (getConfigLivestreamUrl() && WidgetType.JITSI.matches(app.type)) {
+    let streamAudioStreamButton: JSX.Element | undefined;
+    if (roomId && getConfigLivestreamUrl() && WidgetType.JITSI.matches(app.type)) {
         const onStreamAudioClick = async (): Promise<void> => {
             try {
                 await startJitsiAudioLivestream(widgetMessaging!, roomId);
@@ -87,12 +87,12 @@ export const WidgetContextMenu: React.FC<IProps> = ({
     const pinnedWidgets = room ? WidgetLayoutStore.instance.getContainerWidgets(room, Container.Top) : [];
     const widgetIndex = pinnedWidgets.findIndex((widget) => widget.id === app.id);
 
-    let editButton;
+    let editButton: JSX.Element | undefined;
     if (canModify && WidgetUtils.isManagedByManager(app)) {
         const _onEditClick = (): void => {
             if (onEditClick) {
                 onEditClick();
-            } else {
+            } else if (room) {
                 WidgetUtils.editWidget(room, app);
             }
             onFinished();
@@ -101,7 +101,7 @@ export const WidgetContextMenu: React.FC<IProps> = ({
         editButton = <IconizedContextMenuOption onClick={_onEditClick} label={_t("Edit")} />;
     }
 
-    let snapshotButton;
+    let snapshotButton: JSX.Element | undefined;
     const screenshotsEnabled = SettingsStore.getValue("enableWidgetScreenshots");
     if (screenshotsEnabled && widgetMessaging?.hasCapability(MatrixCapabilities.Screenshots)) {
         const onSnapshotClick = (): void => {
@@ -122,12 +122,12 @@ export const WidgetContextMenu: React.FC<IProps> = ({
         snapshotButton = <IconizedContextMenuOption onClick={onSnapshotClick} label={_t("Take a picture")} />;
     }
 
-    let deleteButton;
+    let deleteButton: JSX.Element | undefined;
     if (onDeleteClick || canModify) {
         const _onDeleteClick = (): void => {
             if (onDeleteClick) {
                 onDeleteClick();
-            } else {
+            } else if (roomId) {
                 // Show delete confirmation dialog
                 Modal.createDialog(QuestionDialog, {
                     title: _t("Delete Widget"),
@@ -159,7 +159,7 @@ export const WidgetContextMenu: React.FC<IProps> = ({
         app.creatorUserId === cli.getUserId();
 
     const isLocalWidget = WidgetType.JITSI.matches(app.type);
-    let revokeButton;
+    let revokeButton: JSX.Element | undefined;
     if (!userWidget && !isLocalWidget && isAllowedWidget) {
         const opts: ApprovalOpts = { approved: undefined };
         ModuleRunner.instance.invoke(WidgetLifecycle.PreLoadRequest, opts, new ElementWidget(app));
@@ -182,7 +182,7 @@ export const WidgetContextMenu: React.FC<IProps> = ({
         }
     }
 
-    let moveLeftButton;
+    let moveLeftButton: JSX.Element | undefined;
     if (showUnpin && widgetIndex > 0) {
         const onClick = (): void => {
             if (!room) throw new Error("room must be defined");
@@ -193,7 +193,7 @@ export const WidgetContextMenu: React.FC<IProps> = ({
         moveLeftButton = <IconizedContextMenuOption onClick={onClick} label={_t("Move left")} />;
     }
 
-    let moveRightButton;
+    let moveRightButton: JSX.Element | undefined;
     if (showUnpin && widgetIndex < pinnedWidgets.length - 1) {
         const onClick = (): void => {
             if (!room) throw new Error("room must be defined");