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2.4 KiB
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1 line
2.4 KiB
Plaintext
{"version":3,"file":"subscription-manager.mjs","sources":["../../src/subscription-manager.ts"],"sourcesContent":["import { addUniqueItem, removeItem } from \"./array\"\n\ntype GenericHandler = (...args: any) => void\n\nexport class SubscriptionManager<Handler extends GenericHandler> {\n private subscriptions: Handler[] = []\n\n add(handler: Handler): VoidFunction {\n addUniqueItem(this.subscriptions, handler)\n return () => removeItem(this.subscriptions, handler)\n }\n\n notify(\n a?: Parameters<Handler>[0],\n b?: Parameters<Handler>[1],\n c?: Parameters<Handler>[2]\n ) {\n const numSubscriptions = this.subscriptions.length\n\n if (!numSubscriptions) return\n\n if (numSubscriptions === 1) {\n /**\n * If there's only a single handler we can just call it without invoking a loop.\n */\n this.subscriptions[0](a, b, c)\n } else {\n for (let i = 0; i < numSubscriptions; i++) {\n /**\n * Check whether the handler exists before firing as it's possible\n * the subscriptions were modified during this loop running.\n */\n const handler = this.subscriptions[i]\n handler && handler(a, b, c)\n }\n }\n }\n\n getSize() {\n return this.subscriptions.length\n }\n\n clear() {\n this.subscriptions.length = 0\n }\n}\n"],"names":[],"mappings":";;MAIa,mBAAmB,CAAA;AAAhC,IAAA,WAAA,GAAA;QACY,IAAa,CAAA,aAAA,GAAc,EAAE,CAAA;KAwCxC;AAtCG,IAAA,GAAG,CAAC,OAAgB,EAAA;AAChB,QAAA,aAAa,CAAC,IAAI,CAAC,aAAa,EAAE,OAAO,CAAC,CAAA;QAC1C,OAAO,MAAM,UAAU,CAAC,IAAI,CAAC,aAAa,EAAE,OAAO,CAAC,CAAA;KACvD;AAED,IAAA,MAAM,CACF,CAA0B,EAC1B,CAA0B,EAC1B,CAA0B,EAAA;AAE1B,QAAA,MAAM,gBAAgB,GAAG,IAAI,CAAC,aAAa,CAAC,MAAM,CAAA;AAElD,QAAA,IAAI,CAAC,gBAAgB;YAAE,OAAM;AAE7B,QAAA,IAAI,gBAAgB,KAAK,CAAC,EAAE;AACxB;;AAEG;AACH,YAAA,IAAI,CAAC,aAAa,CAAC,CAAC,CAAC,CAAC,CAAC,EAAE,CAAC,EAAE,CAAC,CAAC,CAAA;SACjC;aAAM;AACH,YAAA,KAAK,IAAI,CAAC,GAAG,CAAC,EAAE,CAAC,GAAG,gBAAgB,EAAE,CAAC,EAAE,EAAE;AACvC;;;AAGG;gBACH,MAAM,OAAO,GAAG,IAAI,CAAC,aAAa,CAAC,CAAC,CAAC,CAAA;gBACrC,OAAO,IAAI,OAAO,CAAC,CAAC,EAAE,CAAC,EAAE,CAAC,CAAC,CAAA;aAC9B;SACJ;KACJ;IAED,OAAO,GAAA;AACH,QAAA,OAAO,IAAI,CAAC,aAAa,CAAC,MAAM,CAAA;KACnC;IAED,KAAK,GAAA;AACD,QAAA,IAAI,CAAC,aAAa,CAAC,MAAM,GAAG,CAAC,CAAA;KAChC;AACJ;;;;"} |