fix(ui): reopen a popout clicked while it is closing (#3318)

fluxer_app/src/features/ui/popover/PopoverPopout.tsx

@@ -309,7 +309,7 @@ export const Popout = React.forwardRef<HTMLElement, PopoutProps>((props, ref) =>
 	);
 	const toggle = useCallback(
 		(clickPos?: number) => {
-			if (PopoutState.isOpen(state.id)) {
+			if (PopoutState.isOpen(state.id) && !PopoutState.isClosing(state.id)) {
 				if (props.hoverDelay != null && openModeRef.current === 'hover') {
 					clearTimers();
 					open(clickPos, 'click');

fluxer_app/src/features/ui/popover/PopoverPopouts.tsx

@@ -240,11 +240,21 @@ const PopoutItem: React.FC<PopoutItemProps> = observer(
 				setTargetInDOM(true);
 			}
 		}, [target, ownerDocument, keepOpenOnTargetUnmount, beginClose]);
+		const wasClosingRequestedRef = useRef(isClosingRequested);
 		useEffect(() => {
+			const wasClosingRequested = wasClosingRequestedRef.current;
+			wasClosingRequestedRef.current = isClosingRequested;
 			if (isClosingRequested) {
 				beginClose();
+				return;
 			}
-		}, [isClosingRequested, beginClose]);
+			if (!wasClosingRequested) return;
+			if (closeTimerRef.current != null && ownerWindow != null) {
+				ownerWindow.clearTimeout(closeTimerRef.current);
+				closeTimerRef.current = null;
+			}
+			setIsVisible(true);
+		}, [isClosingRequested, beginClose, ownerWindow]);
 		useEffect(() => {
 			return () => {
 				if (closeTimerRef.current != null && ownerWindow != null) {
@@ -460,7 +470,7 @@ export const Popouts: React.FC<PopoutsProps> = observer(({ownerDocument}) => {
 	const portalHost = scopePortalHostToDocument(activePortalHost, scopeDocument);
 	const popouts = PopoutState.getPopouts(scopeDocument);
 	const topPopout = popouts.length ? popouts[popouts.length - 1] : null;
-	const needsBackdrop = Boolean(topPopout && !topPopout.disableBackdrop);
+	const needsBackdrop = PopoutState.requiresBackdrop(scopeDocument);
 	useEffect(() => {
 		const currentKeys = new Set(popouts.map((popout) => popout.key.toString()));
 		const prevKeys = prevPopoutKeysRef.current;

fluxer_app/src/features/ui/state/Popout.ts

@@ -218,6 +218,11 @@ class Popout {
 			);
 	}
 
+	requiresBackdrop(ownerDocument: Document = document): boolean {
+		const owner = this.getPopouts(ownerDocument).findLast((popout) => !this.isClosing(popout.key));
+		return owner != null && !owner.disableBackdrop;
+	}
+
 	private getParentPopoutChain(dependsOnKey: string): Record<string, PopoutDefinition> {
 		const result: Record<string, PopoutDefinition> = {};
 		let currentKey: string | undefined = dependsOnKey;