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| 1 | +/* eslint-disable @typescript-eslint/explicit-module-boundary-types */ |
| 2 | +/* eslint-disable @typescript-eslint/no-explicit-any */ |
| 3 | +export type FunctionArgs<Args extends any[] = any[], Return = void> = ( |
| 4 | + ...args: Args |
| 5 | +) => Return; |
| 6 | + |
| 7 | +export interface FunctionWrapperOptions< |
| 8 | + Args extends any[] = any[], |
| 9 | + This = any |
| 10 | +> { |
| 11 | + fn: FunctionArgs<Args, This>; |
| 12 | + args: Args; |
| 13 | + thisArg: This; |
| 14 | +} |
| 15 | + |
| 16 | +export type EventFilter<Args extends any[] = any[], This = any> = ( |
| 17 | + invoke: () => void, |
| 18 | + options: FunctionWrapperOptions<Args, This>, |
| 19 | +) => void; |
| 20 | + |
| 21 | +/** |
| 22 | + * @internal |
| 23 | + */ |
| 24 | +export function createFilterWrapper<T extends FunctionArgs>( |
| 25 | + filter: EventFilter, |
| 26 | + fn: T, |
| 27 | +) { |
| 28 | + function wrapper(this: any, ...args: any[]) { |
| 29 | + filter(() => fn.apply(this, args), { fn, thisArg: this, args }); |
| 30 | + } |
| 31 | + |
| 32 | + return (wrapper as any) as T; |
| 33 | +} |
| 34 | + |
| 35 | +export const bypassFilter: EventFilter = invoke => { |
| 36 | + return invoke(); |
| 37 | +}; |
| 38 | + |
| 39 | +export function debounceFilter(ms: number): EventFilter { |
| 40 | + if (ms <= 0) return bypassFilter; |
| 41 | + |
| 42 | + let timer: ReturnType<typeof setTimeout> | undefined; |
| 43 | + |
| 44 | + const filter: EventFilter = invoke => { |
| 45 | + if (timer) clearTimeout(timer); |
| 46 | + |
| 47 | + timer = setTimeout(invoke, ms); |
| 48 | + }; |
| 49 | + |
| 50 | + return filter; |
| 51 | +} |
| 52 | + |
| 53 | +export function useDebounceFn<T extends FunctionArgs>(fn: T, ms = 200): T { |
| 54 | + return createFilterWrapper(debounceFilter(ms), fn); |
| 55 | +} |
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