\r\n >,\r\n signal: AbortSignal\r\n): TakePattern => {\r\n /**\r\n * A function that takes a ListenerPredicate and an optional timeout,\r\n * and resolves when either the predicate returns `true` based on an action\r\n * state combination or when the timeout expires.\r\n * If the parent listener is canceled while waiting, this will throw a\r\n * TaskAbortError.\r\n */\r\n const take = async >(\r\n predicate: P,\r\n timeout: number | undefined\r\n ) => {\r\n validateActive(signal)\r\n\r\n // Placeholder unsubscribe function until the listener is added\r\n let unsubscribe: UnsubscribeListener = () => {}\r\n\r\n const tuplePromise = new Promise<[AnyAction, S, S]>((resolve) => {\r\n // Inside the Promise, we synchronously add the listener.\r\n unsubscribe = startListening({\r\n predicate: predicate as any,\r\n effect: (action, listenerApi): void => {\r\n // One-shot listener that cleans up as soon as the predicate passes\r\n listenerApi.unsubscribe()\r\n // Resolve the promise with the same arguments the predicate saw\r\n resolve([\r\n action,\r\n listenerApi.getState(),\r\n listenerApi.getOriginalState(),\r\n ])\r\n },\r\n })\r\n })\r\n\r\n const promises: (Promise | Promise<[AnyAction, S, S]>)[] = [\r\n promisifyAbortSignal(signal),\r\n tuplePromise,\r\n ]\r\n\r\n if (timeout != null) {\r\n promises.push(\r\n new Promise((resolve) => setTimeout(resolve, timeout, null))\r\n )\r\n }\r\n\r\n try {\r\n const output = await Promise.race(promises)\r\n\r\n validateActive(signal)\r\n return output\r\n } finally {\r\n // Always clean up the listener\r\n unsubscribe()\r\n }\r\n }\r\n\r\n return ((predicate: AnyListenerPredicate, timeout: number | undefined) =>\r\n catchRejection(take(predicate, timeout))) as TakePattern\r\n}\r\n\r\nconst getListenerEntryPropsFrom = (options: FallbackAddListenerOptions) => {\r\n let { type, actionCreator, matcher, predicate, effect } = options\r\n\r\n if (type) {\r\n predicate = createAction(type).match\r\n } else if (actionCreator) {\r\n type = actionCreator!.type\r\n predicate = actionCreator.match\r\n } else if (matcher) {\r\n predicate = matcher\r\n } else if (predicate) {\r\n // pass\r\n } else {\r\n throw new Error(\r\n 'Creating or removing a listener requires one of the known fields for matching an action'\r\n )\r\n }\r\n\r\n assertFunction(effect, 'options.listener')\r\n\r\n return { predicate, type, effect }\r\n}\r\n\r\n/** Accepts the possible options for creating a listener, and returns a formatted listener entry */\r\nexport const createListenerEntry: TypedCreateListenerEntry = (\r\n options: FallbackAddListenerOptions\r\n) => {\r\n const { type, predicate, effect } = getListenerEntryPropsFrom(options)\r\n\r\n const id = nanoid()\r\n const entry: ListenerEntry = {\r\n id,\r\n effect,\r\n type,\r\n predicate,\r\n pending: new Set(),\r\n unsubscribe: () => {\r\n throw new Error('Unsubscribe not initialized')\r\n },\r\n }\r\n\r\n return entry\r\n}\r\n\r\nconst createClearListenerMiddleware = (\r\n listenerMap: Map\r\n) => {\r\n return () => {\r\n listenerMap.forEach(cancelActiveListeners)\r\n\r\n listenerMap.clear()\r\n }\r\n}\r\n\r\n/**\r\n * Safely reports errors to the `errorHandler` provided.\r\n * Errors that occur inside `errorHandler` are notified in a new task.\r\n * Inspired by [rxjs reportUnhandledError](https://github.com/ReactiveX/rxjs/blob/6fafcf53dc9e557439b25debaeadfd224b245a66/src/internal/util/reportUnhandledError.ts)\r\n * @param errorHandler\r\n * @param errorToNotify\r\n */\r\nconst safelyNotifyError = (\r\n errorHandler: ListenerErrorHandler,\r\n errorToNotify: unknown,\r\n errorInfo: ListenerErrorInfo\r\n): void => {\r\n try {\r\n errorHandler(errorToNotify, errorInfo)\r\n } catch (errorHandlerError) {\r\n // We cannot let an error raised here block the listener queue.\r\n // The error raised here will be picked up by `window.onerror`, `process.on('error')` etc...\r\n setTimeout(() => {\r\n throw errorHandlerError\r\n }, 0)\r\n }\r\n}\r\n\r\n/**\r\n * @public\r\n */\r\nexport const addListener = createAction(\r\n `${alm}/add`\r\n) as TypedAddListener\r\n\r\n/**\r\n * @public\r\n */\r\nexport const clearAllListeners = createAction(`${alm}/removeAll`)\r\n\r\n/**\r\n * @public\r\n */\r\nexport const removeListener = createAction(\r\n `${alm}/remove`\r\n) as TypedRemoveListener\r\n\r\nconst defaultErrorHandler: ListenerErrorHandler = (...args: unknown[]) => {\r\n console.error(`${alm}/error`, ...args)\r\n}\r\n\r\nconst cancelActiveListeners = (\r\n entry: ListenerEntry>\r\n) => {\r\n entry.pending.forEach((controller) => {\r\n abortControllerWithReason(controller, listenerCancelled)\r\n })\r\n}\r\n\r\n/**\r\n * @public\r\n */\r\nexport function createListenerMiddleware<\r\n S = unknown,\r\n D extends Dispatch = ThunkDispatch,\r\n ExtraArgument = unknown\r\n>(middlewareOptions: CreateListenerMiddlewareOptions = {}) {\r\n const listenerMap = new Map()\r\n const { extra, onError = defaultErrorHandler } = middlewareOptions\r\n\r\n assertFunction(onError, 'onError')\r\n\r\n const insertEntry = (entry: ListenerEntry) => {\r\n entry.unsubscribe = () => listenerMap.delete(entry!.id)\r\n\r\n listenerMap.set(entry.id, entry)\r\n return (cancelOptions?: UnsubscribeListenerOptions) => {\r\n entry.unsubscribe()\r\n if (cancelOptions?.cancelActive) {\r\n cancelActiveListeners(entry)\r\n }\r\n }\r\n }\r\n\r\n const findListenerEntry = (\r\n comparator: (entry: ListenerEntry) => boolean\r\n ): ListenerEntry | undefined => {\r\n for (const entry of Array.from(listenerMap.values())) {\r\n if (comparator(entry)) {\r\n return entry\r\n }\r\n }\r\n\r\n return undefined\r\n }\r\n\r\n const startListening = (options: FallbackAddListenerOptions) => {\r\n let entry = findListenerEntry(\r\n (existingEntry) => existingEntry.effect === options.effect\r\n )\r\n\r\n if (!entry) {\r\n entry = createListenerEntry(options as any)\r\n }\r\n\r\n return insertEntry(entry)\r\n }\r\n\r\n const stopListening = (\r\n options: FallbackAddListenerOptions & UnsubscribeListenerOptions\r\n ): boolean => {\r\n const { type, effect, predicate } = getListenerEntryPropsFrom(options)\r\n\r\n const entry = findListenerEntry((entry) => {\r\n const matchPredicateOrType =\r\n typeof type === 'string'\r\n ? entry.type === type\r\n : entry.predicate === predicate\r\n\r\n return matchPredicateOrType && entry.effect === effect\r\n })\r\n\r\n if (entry) {\r\n entry.unsubscribe()\r\n if (options.cancelActive) {\r\n cancelActiveListeners(entry)\r\n }\r\n }\r\n\r\n return !!entry\r\n }\r\n\r\n const notifyListener = async (\r\n entry: ListenerEntry>,\r\n action: AnyAction,\r\n api: MiddlewareAPI,\r\n getOriginalState: () => S\r\n ) => {\r\n const internalTaskController = new AbortController()\r\n const take = createTakePattern(\r\n startListening,\r\n internalTaskController.signal\r\n )\r\n\r\n try {\r\n entry.pending.add(internalTaskController)\r\n await Promise.resolve(\r\n entry.effect(\r\n action,\r\n // Use assign() rather than ... to avoid extra helper functions added to bundle\r\n assign({}, api, {\r\n getOriginalState,\r\n condition: (\r\n predicate: AnyListenerPredicate