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f1a6b8d66d
* chore: vendor Mitt into src/common/third-party As discussed in #6203 we need to vendor our common dependencies in so that when we ship an ESM build all imports point to file paths and do not rely on Node resolution (e.g. a browser does not understand `import mitt from 'mitt'`).
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3.2 KiB
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1 line
3.2 KiB
Plaintext
{"version":3,"file":"mitt.modern.js","sources":["../src/index.ts"],"sourcesContent":["export type EventType = string | symbol;\n\n// An event handler can take an optional event argument\n// and should not return a value\nexport type Handler = (event?: any) => void;\nexport type WildcardHandler= (type: EventType, event?: any) => void\n\n// An array of all currently registered event handlers for a type\nexport type EventHandlerList = Array<Handler>;\nexport type WildCardEventHandlerList = Array<WildcardHandler>;\n\n// A map of event types and their corresponding event handlers.\nexport type EventHandlerMap = Map<EventType, EventHandlerList | WildCardEventHandlerList>;\n\nexport interface Emitter {\n\ton(type: EventType, handler: Handler): void;\n\ton(type: '*', handler: WildcardHandler): void;\n\n\toff(type: EventType, handler: Handler): void;\n\toff(type: '*', handler: WildcardHandler): void;\n\n\temit<T = any>(type: EventType, event?: T): void;\n\temit(type: '*', event?: any): void;\n}\n\n/** Mitt: Tiny (~200b) functional event emitter / pubsub.\n * @name mitt\n * @returns {Mitt}\n */\nexport default function mitt(all?: EventHandlerMap): Emitter {\n\tall = all || new Map();\n\n\treturn {\n\n\t\t/**\n\t\t * Register an event handler for the given type.\n\t\t * @param {string|symbol} type Type of event to listen for, or `\"*\"` for all events\n\t\t * @param {Function} handler Function to call in response to given event\n\t\t * @memberOf mitt\n\t\t */\n\t\ton(type: EventType, handler: Handler) {\n\t\t\tconst handlers = all.get(type);\n\t\t\tconst added = handlers && handlers.push(handler);\n\t\t\tif (!added) {\n\t\t\t\tall.set(type, [handler]);\n\t\t\t}\n\t\t},\n\n\t\t/**\n\t\t * Remove an event handler for the given type.\n\t\t *\n\t\t * @param {string|symbol} type Type of event to unregister `handler` from, or `\"*\"`\n\t\t * @param {Function} handler Handler function to remove\n\t\t * @memberOf mitt\n\t\t */\n\t\toff(type: EventType, handler: Handler) {\n\t\t\tconst handlers = all.get(type);\n\t\t\tif (handlers) {\n\t\t\t\thandlers.splice(handlers.indexOf(handler) >>> 0, 1);\n\t\t\t}\n\t\t},\n\n\t\t/**\n\t\t * Invoke all handlers for the given type.\n\t\t * If present, `\"*\"` handlers are invoked after type-matched handlers.\n\t\t *\n\t\t * Note: Manually firing \"*\" handlers is not supported.\n\t\t *\n\t\t * @param {string|symbol} type The event type to invoke\n\t\t * @param {Any} [evt] Any value (object is recommended and powerful), passed to each handler\n\t\t * @memberOf mitt\n\t\t */\n\t\temit(type: EventType, evt: any) {\n\t\t\t((all.get(type) || []) as EventHandlerList).slice().map((handler) => { handler(evt); });\n\t\t\t((all.get('*') || []) as WildCardEventHandlerList).slice().map((handler) => { handler(type, evt); });\n\t\t}\n\t};\n}\n"],"names":["all","Map","on","type","handler","handlers","get","push","set","off","splice","indexOf","emit","evt","slice","map"],"mappings":"wBA6B6BA,GAG5B,OAFAA,EAAMA,GAAO,IAAIC,IAEV,CAQNC,GAAGC,EAAiBC,GACnB,MAAMC,EAAWL,EAAIM,IAAIH,GACXE,GAAYA,EAASE,KAAKH,IAEvCJ,EAAIQ,IAAIL,EAAM,CAACC,KAWjBK,IAAIN,EAAiBC,GACpB,MAAMC,EAAWL,EAAIM,IAAIH,GACrBE,GACHA,EAASK,OAAOL,EAASM,QAAQP,KAAa,EAAG,IAcnDQ,KAAKT,EAAiBU,IACnBb,EAAIM,IAAIH,IAAS,IAAyBW,QAAQC,IAAKX,IAAcA,EAAQS,MAC7Eb,EAAIM,IAAI,MAAQ,IAAiCQ,QAAQC,IAAKX,IAAcA,EAAQD,EAAMU"} |