@tanstack/query-core
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The framework agnostic core that powers TanStack Query
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{"version":3,"sources":["../../src/onlineManager.ts"],"sourcesContent":["import { Subscribable } from './subscribable'\nimport { isServer } from './utils'\n\ntype Listener = (online: boolean) => void\ntype SetupFn = (setOnline: Listener) => (() => void) | undefined\n\nexport class OnlineManager extends Subscribable<Listener> {\n #online = true\n #cleanup?: () => void\n\n #setup: SetupFn\n\n constructor() {\n super()\n this.#setup = (onOnline) => {\n // addEventListener does not exist in React Native, but window does\n // eslint-disable-next-line @typescript-eslint/no-unnecessary-condition\n if (!isServer && window.addEventListener) {\n const onlineListener = () => onOnline(true)\n const offlineListener = () => onOnline(false)\n // Listen to online\n window.addEventListener('online', onlineListener, false)\n window.addEventListener('offline', offlineListener, false)\n\n return () => {\n // Be sure to unsubscribe if a new handler is set\n window.removeEventListener('online', onlineListener)\n window.removeEventListener('offline', offlineListener)\n }\n }\n\n return\n }\n }\n\n protected onSubscribe(): void {\n if (!this.#cleanup) {\n this.setEventListener(this.#setup)\n }\n }\n\n protected onUnsubscribe() {\n if (!this.hasListeners()) {\n this.#cleanup?.()\n this.#cleanup = undefined\n }\n }\n\n setEventListener(setup: SetupFn): void {\n this.#setup = setup\n this.#cleanup?.()\n this.#cleanup = setup(this.setOnline.bind(this))\n }\n\n setOnline(online: boolean): void {\n const changed = this.#online !== online\n\n if (changed) {\n this.#online = online\n this.listeners.forEach((listener) => {\n listener(online)\n })\n }\n }\n\n isOnline(): boolean {\n return this.#online\n }\n}\n\nexport const onlineManager = new OnlineManager()\n"],"mappings":";;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA,0BAA6B;AAC7B,mBAAyB;AADzB;AAMO,IAAM,gBAAN,cAA4B,iCAAuB;AAAA,EAMxD,cAAc;AACZ,UAAM;AANR,gCAAU;AACV;AAEA;AAIE,uBAAK,QAAS,CAAC,aAAa;AAG1B,UAAI,CAAC,yBAAY,OAAO,kBAAkB;AACxC,cAAM,iBAAiB,MAAM,SAAS,IAAI;AAC1C,cAAM,kBAAkB,MAAM,SAAS,KAAK;AAE5C,eAAO,iBAAiB,UAAU,gBAAgB,KAAK;AACvD,eAAO,iBAAiB,WAAW,iBAAiB,KAAK;AAEzD,eAAO,MAAM;AAEX,iBAAO,oBAAoB,UAAU,cAAc;AACnD,iBAAO,oBAAoB,WAAW,eAAe;AAAA,QACvD;AAAA,MACF;AAEA;AAAA,IACF;AAAA,EACF;AAAA,EAEU,cAAoB;AAC5B,QAAI,CAAC,mBAAK,WAAU;AAClB,WAAK,iBAAiB,mBAAK,OAAM;AAAA,IACnC;AAAA,EACF;AAAA,EAEU,gBAAgB;AAzC5B;AA0CI,QAAI,CAAC,KAAK,aAAa,GAAG;AACxB,+BAAK,cAAL;AACA,yBAAK,UAAW;AAAA,IAClB;AAAA,EACF;AAAA,EAEA,iBAAiB,OAAsB;AAhDzC;AAiDI,uBAAK,QAAS;AACd,6BAAK,cAAL;AACA,uBAAK,UAAW,MAAM,KAAK,UAAU,KAAK,IAAI,CAAC;AAAA,EACjD;AAAA,EAEA,UAAU,QAAuB;AAC/B,UAAM,UAAU,mBAAK,aAAY;AAEjC,QAAI,SAAS;AACX,yBAAK,SAAU;AACf,WAAK,UAAU,QAAQ,CAAC,aAAa;AACnC,iBAAS,MAAM;AAAA,MACjB,CAAC;AAAA,IACH;AAAA,EACF;AAAA,EAEA,WAAoB;AAClB,WAAO,mBAAK;AAAA,EACd;AACF;AA7DE;AACA;AAEA;AA4DK,IAAM,gBAAgB,IAAI,cAAc;","names":[]}