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23 lines
1.3 KiB
23 lines
1.3 KiB
export declare type EventCallback<Ctx, Impl, EvtParam = unknown> = (this: CbThis<Ctx, Impl>, eventParam: EvtParam, ...args: unknown[]) => boolean | void;
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export declare type EventQuery = string | Object;
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declare type CbThis<Ctx, Impl> = unknown extends Ctx ? Impl : Ctx;
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declare type DefaultEventDefinition = {
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[eventName: string]: unknown;
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};
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export interface EventProcessor<EvtDef = DefaultEventDefinition> {
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normalizeQuery?: (query: EventQuery) => EventQuery;
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filter?: (eventType: keyof EvtDef, query: EventQuery) => boolean;
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afterTrigger?: (eventType: keyof EvtDef) => void;
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}
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export default class Eventful<EvtDef = DefaultEventDefinition> {
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private _$handlers;
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protected _$eventProcessor: EventProcessor<EvtDef>;
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constructor(eventProcessors?: EventProcessor<EvtDef>);
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on<Ctx, EvtNm extends keyof EvtDef>(event: EvtNm, handler: EventCallback<Ctx, this, EvtDef[EvtNm]>, context?: Ctx): this;
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on<Ctx, EvtNm extends keyof EvtDef>(event: EvtNm, query: EventQuery, handler: EventCallback<Ctx, this, EvtDef[EvtNm]>, context?: Ctx): this;
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isSilent(eventName: keyof EvtDef): boolean;
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off(eventType?: keyof EvtDef, handler?: Function): this;
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trigger(eventType: keyof EvtDef, eventParam?: EvtDef[keyof EvtDef], ...args: any[]): this;
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triggerWithContext(type: keyof EvtDef): this;
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}
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export {};
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